Čarkić, Jelena

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  • Čarkić, Jelena (19)
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Author's Bibliography

Impact of Notch signalling molecules and bone resorption regulators on clinical parameters in periodontitis

Đinić Krasavčević, Ana; Nikolić, Nadja; Mijailović, Iva; Čarkić, Jelena; Milinković, Iva; Janković, Saša; Aleksić, Zoran; Milašin, Jelena

(Wiley, 2021)

TY  - JOUR
AU  - Đinić Krasavčević, Ana
AU  - Nikolić, Nadja
AU  - Mijailović, Iva
AU  - Čarkić, Jelena
AU  - Milinković, Iva
AU  - Janković, Saša
AU  - Aleksić, Zoran
AU  - Milašin, Jelena
PY  - 2021
UR  - https://smile.stomf.bg.ac.rs/handle/123456789/2568
AB  - Background and objective
Notch signalling cascade has recently been connected to alveolar bone resorption in periodontitis. Hence, the present cross‐sectional study aimed to analyze the expression of Notch signalling pathway (Notch 1, Notch 2, Jagged 1, Hes 1, Hey 1) and periodontitis‐related (tumor necrosis factor alpha‐ TNF‐α, interleukin 17‐IL‐17, receptor activator of nuclear factor‐kappa B ligand—RANKL, osteoprotegerin—OPG) molecules and correlate it with clinical parameters in aggressive (AP) and chronic (CP) periodontitis. Additionally, the aforementioned markers' expression was evaluated in periodontitis patients with different RANKL/OPG ratios.

Material and methods
Eighty patients were enrolled either in AP or CP group. Clinical attachment level (CAL), bleeding on probing (BOP), periodontal probing depth (PPD) and plaque index (PI) were recorded for each patient. Total RNA was extracted from gingival crevicular fluid samples. Relative gene expression of investigated markers was determined by reverse transcriptase‐real‐time polymerase chain reaction.

Results
Significantly higher values of PPD were observed in AP compared to CP (P = .010). Negative correlations between OPG and CAL, and OPG and PI, were found in AP (P = .045, P = .006, respectively), while Hey 1 and PI had a positive correlation (P = .049). In multivariate linear regression analysis, OPG and Notch 2 were predictors of CAL in AP group. TNF‐α and IL‐17 were higher in RANKL predominant than in OPG predominant cases (P = .007, P = .001, respectively). In RANKL predominant lesions Notch 1 and Jagged 1 were down‐regulated in AP compared to CP patients (P = .010, P = .025, respectively).

Conclusion
The present study demonstrated that changes in Notch 2 expression affected CAL in AP cases hence this molecule could be considered as a contributor to alveolar bone loss. In RANKL‐activated settings, the down‐regulation of Notch 1 might participate in more severe bone resorption in AP.
PB  - Wiley
T2  - Journal of Periodontal Research
T1  - Impact of Notch signalling molecules and bone resorption regulators on clinical parameters in periodontitis
VL  - 56
IS  - 1
SP  - 131
EP  - 138
DO  - 10.1111/jre.12801
ER  - 
@article{
author = "Đinić Krasavčević, Ana and Nikolić, Nadja and Mijailović, Iva and Čarkić, Jelena and Milinković, Iva and Janković, Saša and Aleksić, Zoran and Milašin, Jelena",
year = "2021",
abstract = "Background and objective
Notch signalling cascade has recently been connected to alveolar bone resorption in periodontitis. Hence, the present cross‐sectional study aimed to analyze the expression of Notch signalling pathway (Notch 1, Notch 2, Jagged 1, Hes 1, Hey 1) and periodontitis‐related (tumor necrosis factor alpha‐ TNF‐α, interleukin 17‐IL‐17, receptor activator of nuclear factor‐kappa B ligand—RANKL, osteoprotegerin—OPG) molecules and correlate it with clinical parameters in aggressive (AP) and chronic (CP) periodontitis. Additionally, the aforementioned markers' expression was evaluated in periodontitis patients with different RANKL/OPG ratios.

Material and methods
Eighty patients were enrolled either in AP or CP group. Clinical attachment level (CAL), bleeding on probing (BOP), periodontal probing depth (PPD) and plaque index (PI) were recorded for each patient. Total RNA was extracted from gingival crevicular fluid samples. Relative gene expression of investigated markers was determined by reverse transcriptase‐real‐time polymerase chain reaction.

Results
Significantly higher values of PPD were observed in AP compared to CP (P = .010). Negative correlations between OPG and CAL, and OPG and PI, were found in AP (P = .045, P = .006, respectively), while Hey 1 and PI had a positive correlation (P = .049). In multivariate linear regression analysis, OPG and Notch 2 were predictors of CAL in AP group. TNF‐α and IL‐17 were higher in RANKL predominant than in OPG predominant cases (P = .007, P = .001, respectively). In RANKL predominant lesions Notch 1 and Jagged 1 were down‐regulated in AP compared to CP patients (P = .010, P = .025, respectively).

Conclusion
The present study demonstrated that changes in Notch 2 expression affected CAL in AP cases hence this molecule could be considered as a contributor to alveolar bone loss. In RANKL‐activated settings, the down‐regulation of Notch 1 might participate in more severe bone resorption in AP.",
publisher = "Wiley",
journal = "Journal of Periodontal Research",
title = "Impact of Notch signalling molecules and bone resorption regulators on clinical parameters in periodontitis",
volume = "56",
number = "1",
pages = "131-138",
doi = "10.1111/jre.12801"
}
Đinić Krasavčević, A., Nikolić, N., Mijailović, I., Čarkić, J., Milinković, I., Janković, S., Aleksić, Z.,& Milašin, J.. (2021). Impact of Notch signalling molecules and bone resorption regulators on clinical parameters in periodontitis. in Journal of Periodontal Research
Wiley., 56(1), 131-138.
https://doi.org/10.1111/jre.12801
Đinić Krasavčević A, Nikolić N, Mijailović I, Čarkić J, Milinković I, Janković S, Aleksić Z, Milašin J. Impact of Notch signalling molecules and bone resorption regulators on clinical parameters in periodontitis. in Journal of Periodontal Research. 2021;56(1):131-138.
doi:10.1111/jre.12801 .
Đinić Krasavčević, Ana, Nikolić, Nadja, Mijailović, Iva, Čarkić, Jelena, Milinković, Iva, Janković, Saša, Aleksić, Zoran, Milašin, Jelena, "Impact of Notch signalling molecules and bone resorption regulators on clinical parameters in periodontitis" in Journal of Periodontal Research, 56, no. 1 (2021):131-138,
https://doi.org/10.1111/jre.12801 . .
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Endothelial nitric oxide synthase polymorphisms/haplotypes are strong modulators of oral cancer risk in Serbian population

Čarkić, Jelena; Nikolić, Nadja; Nišević, Jelena; Lazarević, Miloš; Kuzmanović-Pfićer, Jovana; Jelovac, Drago; Milašin, Jelena

(Nihon University, School of Dentistry, Japan, 2020)

TY  - JOUR
AU  - Čarkić, Jelena
AU  - Nikolić, Nadja
AU  - Nišević, Jelena
AU  - Lazarević, Miloš
AU  - Kuzmanović-Pfićer, Jovana
AU  - Jelovac, Drago
AU  - Milašin, Jelena
PY  - 2020
UR  - https://smile.stomf.bg.ac.rs/handle/123456789/2567
AB  - Oral carcinoma is the sixth most common malignancy worldwide, with survival rates of approximately 50%. The major type of oral cancer, present in 90% of the cases, is oral squamous cell carcinoma (OSCC). The genetic background predisposing an individual to OSCC is complex and largely unknown. Studies have suggested that endothelial nitric oxide synthase (eNOS) gene polymorphisms modulate the cancer risk, prompting us to assess the impact of three functional eNOS gene polymorphisms on OSCC risk. The present study included 50 patients with OSCC and 110 controls. Polymerase chain reaction and restriction fragment length polymorphism analysis were used for genotyping of single-nucleotide polymorphisms -786 T/C (rs2070744) and 894 G/T (rs1799983) and variable number of tandem repeats (VNTR) intron 4b/a polymorphism. Homozygous carriers of -786 T/C and intron 4b/a VNTR variant alleles paired with a significant increase of oral cancer risk [odds ratio (OR): 3.63, 95% confidence interval (CI): 1.08-12.21; P = 0.045 and OR: 11.29, 95% CI: 2.71-47.11; P < 0.001, respectively]. When combined, CC and 4b4a genotypes together led to a 21-fold OSCC risk increase (OR: 21, 95% CI: 2.07-213.29; P = 0.006). Haplotype analysis showed that the C-G-4b haplotype conferred an 11-fold increase in OSCC risk. In conclusion, eNOS polymorphisms considerably influence levels of OSCC risk in the Serbian population.
PB  - Nihon University, School of Dentistry, Japan
T2  - Journal of Oral Science
T1  - Endothelial nitric oxide synthase polymorphisms/haplotypes are strong modulators of oral cancer risk in Serbian population
VL  - 62
IS  - 3
SP  - 322
EP  - 326
DO  - 10.2334/josnusd.19-0310
ER  - 
@article{
author = "Čarkić, Jelena and Nikolić, Nadja and Nišević, Jelena and Lazarević, Miloš and Kuzmanović-Pfićer, Jovana and Jelovac, Drago and Milašin, Jelena",
year = "2020",
abstract = "Oral carcinoma is the sixth most common malignancy worldwide, with survival rates of approximately 50%. The major type of oral cancer, present in 90% of the cases, is oral squamous cell carcinoma (OSCC). The genetic background predisposing an individual to OSCC is complex and largely unknown. Studies have suggested that endothelial nitric oxide synthase (eNOS) gene polymorphisms modulate the cancer risk, prompting us to assess the impact of three functional eNOS gene polymorphisms on OSCC risk. The present study included 50 patients with OSCC and 110 controls. Polymerase chain reaction and restriction fragment length polymorphism analysis were used for genotyping of single-nucleotide polymorphisms -786 T/C (rs2070744) and 894 G/T (rs1799983) and variable number of tandem repeats (VNTR) intron 4b/a polymorphism. Homozygous carriers of -786 T/C and intron 4b/a VNTR variant alleles paired with a significant increase of oral cancer risk [odds ratio (OR): 3.63, 95% confidence interval (CI): 1.08-12.21; P = 0.045 and OR: 11.29, 95% CI: 2.71-47.11; P < 0.001, respectively]. When combined, CC and 4b4a genotypes together led to a 21-fold OSCC risk increase (OR: 21, 95% CI: 2.07-213.29; P = 0.006). Haplotype analysis showed that the C-G-4b haplotype conferred an 11-fold increase in OSCC risk. In conclusion, eNOS polymorphisms considerably influence levels of OSCC risk in the Serbian population.",
publisher = "Nihon University, School of Dentistry, Japan",
journal = "Journal of Oral Science",
title = "Endothelial nitric oxide synthase polymorphisms/haplotypes are strong modulators of oral cancer risk in Serbian population",
volume = "62",
number = "3",
pages = "322-326",
doi = "10.2334/josnusd.19-0310"
}
Čarkić, J., Nikolić, N., Nišević, J., Lazarević, M., Kuzmanović-Pfićer, J., Jelovac, D.,& Milašin, J.. (2020). Endothelial nitric oxide synthase polymorphisms/haplotypes are strong modulators of oral cancer risk in Serbian population. in Journal of Oral Science
Nihon University, School of Dentistry, Japan., 62(3), 322-326.
https://doi.org/10.2334/josnusd.19-0310
Čarkić J, Nikolić N, Nišević J, Lazarević M, Kuzmanović-Pfićer J, Jelovac D, Milašin J. Endothelial nitric oxide synthase polymorphisms/haplotypes are strong modulators of oral cancer risk in Serbian population. in Journal of Oral Science. 2020;62(3):322-326.
doi:10.2334/josnusd.19-0310 .
Čarkić, Jelena, Nikolić, Nadja, Nišević, Jelena, Lazarević, Miloš, Kuzmanović-Pfićer, Jovana, Jelovac, Drago, Milašin, Jelena, "Endothelial nitric oxide synthase polymorphisms/haplotypes are strong modulators of oral cancer risk in Serbian population" in Journal of Oral Science, 62, no. 3 (2020):322-326,
https://doi.org/10.2334/josnusd.19-0310 . .
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VAL158MET catechol O-methyltransferase polymorphism contributes to the development of preeclampsia

Šljivančanin Jakovljević, Tamara; Kontić-Vučinić, Olivera; Nikolić, Nadja; Čarkić, Jelena; Milašin, Jelena

(Taylor & Francis Inc., 2020)

TY  - JOUR
AU  - Šljivančanin Jakovljević, Tamara
AU  - Kontić-Vučinić, Olivera
AU  - Nikolić, Nadja
AU  - Čarkić, Jelena
AU  - Milašin, Jelena
PY  - 2020
UR  - https://smile.stomf.bg.ac.rs/handle/123456789/2572
AB  - Objectives: Establishment of association between: (a) Val158Met COMT (G1947A) polymorphism and preeclampsia; (b) cytokines gene expression and COMT genotypes. Methods: 50 preeclampsia and 50 healthy pregnant women were enrolled. COMT genotyping was done by PCR/RFLP. TNF-α, IL-1β, and IL-6 mRNA levels were determined by Real-time PCR. Results: Variant (AA) homozygotes carried 3.7-fold increased preeclampsia odds, especially for severe (OR = 9.0, 95%CI (2.09-38.799)) and early forms (OR = 6.6, 95%CI (1.62-26.87)). AA homozygotes with PE had higher TNF-α levels compared to controls (P = 0.012). Conclusions: Val158Met COMT polymorphism increases preeclampsia risk. TNF-α expression and Val158Met COMT polymorphism have concomitant roles in PE pathogenesis.
PB  - Taylor & Francis Inc.
T2  - Hypertension in Pregnancy
T1  - VAL158MET catechol O-methyltransferase polymorphism contributes to the development of preeclampsia
VL  - 39
IS  - 4
SP  - 471
EP  - 480
DO  - 10.1080/10641955.2020.1843663
ER  - 
@article{
author = "Šljivančanin Jakovljević, Tamara and Kontić-Vučinić, Olivera and Nikolić, Nadja and Čarkić, Jelena and Milašin, Jelena",
year = "2020",
abstract = "Objectives: Establishment of association between: (a) Val158Met COMT (G1947A) polymorphism and preeclampsia; (b) cytokines gene expression and COMT genotypes. Methods: 50 preeclampsia and 50 healthy pregnant women were enrolled. COMT genotyping was done by PCR/RFLP. TNF-α, IL-1β, and IL-6 mRNA levels were determined by Real-time PCR. Results: Variant (AA) homozygotes carried 3.7-fold increased preeclampsia odds, especially for severe (OR = 9.0, 95%CI (2.09-38.799)) and early forms (OR = 6.6, 95%CI (1.62-26.87)). AA homozygotes with PE had higher TNF-α levels compared to controls (P = 0.012). Conclusions: Val158Met COMT polymorphism increases preeclampsia risk. TNF-α expression and Val158Met COMT polymorphism have concomitant roles in PE pathogenesis.",
publisher = "Taylor & Francis Inc.",
journal = "Hypertension in Pregnancy",
title = "VAL158MET catechol O-methyltransferase polymorphism contributes to the development of preeclampsia",
volume = "39",
number = "4",
pages = "471-480",
doi = "10.1080/10641955.2020.1843663"
}
Šljivančanin Jakovljević, T., Kontić-Vučinić, O., Nikolić, N., Čarkić, J.,& Milašin, J.. (2020). VAL158MET catechol O-methyltransferase polymorphism contributes to the development of preeclampsia. in Hypertension in Pregnancy
Taylor & Francis Inc.., 39(4), 471-480.
https://doi.org/10.1080/10641955.2020.1843663
Šljivančanin Jakovljević T, Kontić-Vučinić O, Nikolić N, Čarkić J, Milašin J. VAL158MET catechol O-methyltransferase polymorphism contributes to the development of preeclampsia. in Hypertension in Pregnancy. 2020;39(4):471-480.
doi:10.1080/10641955.2020.1843663 .
Šljivančanin Jakovljević, Tamara, Kontić-Vučinić, Olivera, Nikolić, Nadja, Čarkić, Jelena, Milašin, Jelena, "VAL158MET catechol O-methyltransferase polymorphism contributes to the development of preeclampsia" in Hypertension in Pregnancy, 39, no. 4 (2020):471-480,
https://doi.org/10.1080/10641955.2020.1843663 . .
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Notch ? a possible mediator between Epstein-Barr virus infection and bone resorption in apical periodontitis

Jakovljević, Aleksandar; Nikolić, Nadja; Čarkić, Jelena; Andrić, Miroslav; Miletić, Maja; Beljić-Ivanović, Katarina; Jovanović, Tanja; Milašin, Jelena

(Taylor & Francis Ltd, Abingdon, 2020)

TY  - JOUR
AU  - Jakovljević, Aleksandar
AU  - Nikolić, Nadja
AU  - Čarkić, Jelena
AU  - Andrić, Miroslav
AU  - Miletić, Maja
AU  - Beljić-Ivanović, Katarina
AU  - Jovanović, Tanja
AU  - Milašin, Jelena
PY  - 2020
UR  - https://smile.stomf.bg.ac.rs/handle/123456789/2493
AB  - Objectives: This study aimed to investigate whether Epstein-Barr virus (EBV) positive periapical lesions exhibited higher mRNA levels of Notch signalling molecules (Notch2 and Jagged1), bone resorption regulators (receptor activator of nuclear factor kappa-? ligand (RANKL) and osteoprotegerin (OPG)), and proinflammatory cytokines (tumour necrosis factor-alpha (TNF-?), interleukin-1 beta (IL-1?) and IL-6) compared to EBV negative lesions. Additionally, the potential correlation between investigated molecules in periapical lesions was analyzed. Materials and methods: Sixty-four apical periodontitis lesions were obtained subsequent to standard apicoectomy procedure. The presence of EBV was determined using nested PCR. Based on the presence of EBV all periapical lesions were divided into two groups, 29 EBV positive and 35 EBV negative lesions. A reverse transcriptase real-time PCR was used to determine mRNA levels of Notch2, Jagged1, RANKL, OPG, TNF-?, IL-1? and IL-6. Results: Significantly higher mRNA levels of Notch2, Jagged1, RANKL and IL-1? were observed in EBV positive compared to EBV negative lesions. Significant positive correlation was present between Notch2 and Jagged1, Jagged1 and RANKL, and IL-? and TNF-? in EBV positive periapical lesions. Conclusions: Notch signalling pathway may be involved in alveolar bone resorption in apical periodontitis lesions infected by EBV.
PB  - Taylor & Francis Ltd, Abingdon
T2  - Acta Odontologica Scandinavica
T1  - Notch ? a possible mediator between Epstein-Barr virus infection and bone resorption in apical periodontitis
VL  - 78
IS  - 2
SP  - 126
EP  - 131
DO  - 10.1080/00016357.2019.1658896
ER  - 
@article{
author = "Jakovljević, Aleksandar and Nikolić, Nadja and Čarkić, Jelena and Andrić, Miroslav and Miletić, Maja and Beljić-Ivanović, Katarina and Jovanović, Tanja and Milašin, Jelena",
year = "2020",
abstract = "Objectives: This study aimed to investigate whether Epstein-Barr virus (EBV) positive periapical lesions exhibited higher mRNA levels of Notch signalling molecules (Notch2 and Jagged1), bone resorption regulators (receptor activator of nuclear factor kappa-? ligand (RANKL) and osteoprotegerin (OPG)), and proinflammatory cytokines (tumour necrosis factor-alpha (TNF-?), interleukin-1 beta (IL-1?) and IL-6) compared to EBV negative lesions. Additionally, the potential correlation between investigated molecules in periapical lesions was analyzed. Materials and methods: Sixty-four apical periodontitis lesions were obtained subsequent to standard apicoectomy procedure. The presence of EBV was determined using nested PCR. Based on the presence of EBV all periapical lesions were divided into two groups, 29 EBV positive and 35 EBV negative lesions. A reverse transcriptase real-time PCR was used to determine mRNA levels of Notch2, Jagged1, RANKL, OPG, TNF-?, IL-1? and IL-6. Results: Significantly higher mRNA levels of Notch2, Jagged1, RANKL and IL-1? were observed in EBV positive compared to EBV negative lesions. Significant positive correlation was present between Notch2 and Jagged1, Jagged1 and RANKL, and IL-? and TNF-? in EBV positive periapical lesions. Conclusions: Notch signalling pathway may be involved in alveolar bone resorption in apical periodontitis lesions infected by EBV.",
publisher = "Taylor & Francis Ltd, Abingdon",
journal = "Acta Odontologica Scandinavica",
title = "Notch ? a possible mediator between Epstein-Barr virus infection and bone resorption in apical periodontitis",
volume = "78",
number = "2",
pages = "126-131",
doi = "10.1080/00016357.2019.1658896"
}
Jakovljević, A., Nikolić, N., Čarkić, J., Andrić, M., Miletić, M., Beljić-Ivanović, K., Jovanović, T.,& Milašin, J.. (2020). Notch ? a possible mediator between Epstein-Barr virus infection and bone resorption in apical periodontitis. in Acta Odontologica Scandinavica
Taylor & Francis Ltd, Abingdon., 78(2), 126-131.
https://doi.org/10.1080/00016357.2019.1658896
Jakovljević A, Nikolić N, Čarkić J, Andrić M, Miletić M, Beljić-Ivanović K, Jovanović T, Milašin J. Notch ? a possible mediator between Epstein-Barr virus infection and bone resorption in apical periodontitis. in Acta Odontologica Scandinavica. 2020;78(2):126-131.
doi:10.1080/00016357.2019.1658896 .
Jakovljević, Aleksandar, Nikolić, Nadja, Čarkić, Jelena, Andrić, Miroslav, Miletić, Maja, Beljić-Ivanović, Katarina, Jovanović, Tanja, Milašin, Jelena, "Notch ? a possible mediator between Epstein-Barr virus infection and bone resorption in apical periodontitis" in Acta Odontologica Scandinavica, 78, no. 2 (2020):126-131,
https://doi.org/10.1080/00016357.2019.1658896 . .
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The down-regulation of Notch 1 signaling contributes to the severity of bone loss in aggressive periodontitis

Mijailović, Iva; Nikolić, Nadja; Đinić, Ana; Čarkić, Jelena; Milinković, Iva; Perić, Mina; Janković, Saša; Milašin, Jelena; Aleksić, Zoran

(Wiley, Hoboken, 2020)

TY  - JOUR
AU  - Mijailović, Iva
AU  - Nikolić, Nadja
AU  - Đinić, Ana
AU  - Čarkić, Jelena
AU  - Milinković, Iva
AU  - Perić, Mina
AU  - Janković, Saša
AU  - Milašin, Jelena
AU  - Aleksić, Zoran
PY  - 2020
UR  - https://smile.stomf.bg.ac.rs/handle/123456789/2492
AB  - Background The exact mechanisms of bone resorption in periodontitis have not been fully elucidated. The aims of this study were to analyze the expression of Notch signaling molecules, bone remodeling mediators, and pro-inflammatory cytokines in periodontitis patients and to determine their potential correlations. Methods The study included 130 individuals: 40 with aggressive periodontitis (AP group), 40 with chronic periodontitis (CP group), and 50 periodontally healthy controls. Total RNA was extracted from gingival crevicular fluid samples and relative gene expression of investigated molecules (Notch 1, Notch 2, Jagged 1, Hes 1, Hey 1, TNF-alpha, IL-17, RANKL, and OPG) was determined by reverse transcriptase - real-time polymerase chain reaction (RT-qPCR). Results In AP group, a significant increase of Notch 2, TNF-alpha, IL-17 and RANKL and a significant decrease of Notch 1 and Jagged 1 expression were observed compared to control group (P = 0.023, P = 0.005, P = 0.030, and P = 0.001 P = 0.031 and P = 0.029, respectively). Notch 2 and RANKL were also overexpressed in CP group compared to controls (P = 0.001 and P = 0.011). Significant correlations were observed in AP group between expression levels of the analyzed genes. Conclusion The present findings implicate Notch 2 overexpression in the ethiopathogenesis of bone resorption in aggressive and chronic periodontitis. The down-regulation of Notch 1 and Jagged 1 and loss of their osteoprotective function might cause a more excessive osteoclast formation and contribute to greater osteolysis in aggressive periodontitis.
PB  - Wiley, Hoboken
T2  - Journal of Periodontology
T1  - The down-regulation of Notch 1 signaling contributes to the severity of bone loss in aggressive periodontitis
VL  - 91
IS  - 4
SP  - 554
EP  - 561
DO  - 10.1002/JPER.18-0755
ER  - 
@article{
author = "Mijailović, Iva and Nikolić, Nadja and Đinić, Ana and Čarkić, Jelena and Milinković, Iva and Perić, Mina and Janković, Saša and Milašin, Jelena and Aleksić, Zoran",
year = "2020",
abstract = "Background The exact mechanisms of bone resorption in periodontitis have not been fully elucidated. The aims of this study were to analyze the expression of Notch signaling molecules, bone remodeling mediators, and pro-inflammatory cytokines in periodontitis patients and to determine their potential correlations. Methods The study included 130 individuals: 40 with aggressive periodontitis (AP group), 40 with chronic periodontitis (CP group), and 50 periodontally healthy controls. Total RNA was extracted from gingival crevicular fluid samples and relative gene expression of investigated molecules (Notch 1, Notch 2, Jagged 1, Hes 1, Hey 1, TNF-alpha, IL-17, RANKL, and OPG) was determined by reverse transcriptase - real-time polymerase chain reaction (RT-qPCR). Results In AP group, a significant increase of Notch 2, TNF-alpha, IL-17 and RANKL and a significant decrease of Notch 1 and Jagged 1 expression were observed compared to control group (P = 0.023, P = 0.005, P = 0.030, and P = 0.001 P = 0.031 and P = 0.029, respectively). Notch 2 and RANKL were also overexpressed in CP group compared to controls (P = 0.001 and P = 0.011). Significant correlations were observed in AP group between expression levels of the analyzed genes. Conclusion The present findings implicate Notch 2 overexpression in the ethiopathogenesis of bone resorption in aggressive and chronic periodontitis. The down-regulation of Notch 1 and Jagged 1 and loss of their osteoprotective function might cause a more excessive osteoclast formation and contribute to greater osteolysis in aggressive periodontitis.",
publisher = "Wiley, Hoboken",
journal = "Journal of Periodontology",
title = "The down-regulation of Notch 1 signaling contributes to the severity of bone loss in aggressive periodontitis",
volume = "91",
number = "4",
pages = "554-561",
doi = "10.1002/JPER.18-0755"
}
Mijailović, I., Nikolić, N., Đinić, A., Čarkić, J., Milinković, I., Perić, M., Janković, S., Milašin, J.,& Aleksić, Z.. (2020). The down-regulation of Notch 1 signaling contributes to the severity of bone loss in aggressive periodontitis. in Journal of Periodontology
Wiley, Hoboken., 91(4), 554-561.
https://doi.org/10.1002/JPER.18-0755
Mijailović I, Nikolić N, Đinić A, Čarkić J, Milinković I, Perić M, Janković S, Milašin J, Aleksić Z. The down-regulation of Notch 1 signaling contributes to the severity of bone loss in aggressive periodontitis. in Journal of Periodontology. 2020;91(4):554-561.
doi:10.1002/JPER.18-0755 .
Mijailović, Iva, Nikolić, Nadja, Đinić, Ana, Čarkić, Jelena, Milinković, Iva, Perić, Mina, Janković, Saša, Milašin, Jelena, Aleksić, Zoran, "The down-regulation of Notch 1 signaling contributes to the severity of bone loss in aggressive periodontitis" in Journal of Periodontology, 91, no. 4 (2020):554-561,
https://doi.org/10.1002/JPER.18-0755 . .
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Association of polymorphisms in TNF-alpha, IL-1 beta, GSTM and GSTT genes with apical periodontitis: is there a link with herpesviral infection?

Jakovljević, Aleksandar; Nikolić, Nadja; Čarkić, Jelena; Beljić-Ivanović, Katarina; Soldatović, Ivan; Miletić, Maja; Andrić, Miroslav; Milašin, Jelena

(Wiley, Hoboken, 2020)

TY  - JOUR
AU  - Jakovljević, Aleksandar
AU  - Nikolić, Nadja
AU  - Čarkić, Jelena
AU  - Beljić-Ivanović, Katarina
AU  - Soldatović, Ivan
AU  - Miletić, Maja
AU  - Andrić, Miroslav
AU  - Milašin, Jelena
PY  - 2020
UR  - https://smile.stomf.bg.ac.rs/handle/123456789/1047
AB  - Aim To investigate the possible association between TNF alpha (-308 G/A) and IL-1 beta (-511 C/T) single nucleotide polymorphisms (SNPs) and GSTT and GSTM deletion polymorphisms and risk of apical periodontitis (AP) development, and determine the association of different genotypes with the presence of herpesviral infection in AP. Methodology The study included 120 periapical lesions and 200 control samples. Gene polymorphism analysis was performed using either polymerase chain reaction (PCR) or PCR/ restriction fragment length polymorphism (RFLP). Relative gene expression of TNF-alpha and IL-1 beta was analysed using reverse transcriptase - real-time PCR. The presence of Epstein-Barr virus (EBV) and human cytomegalovirus (HCMV) was assessed by nested PCR. Chi-square and Fisher's exact tests and logistic regression analyses were done for polymorphisms, whilst Mann-Whitney U-test was performed for the expression analysis. The expected frequency of variants was analysed by the Hardy-Weinberg equilibrium test. Results TNF-alpha (-308 G/A) SNP increased AP susceptibility for heterozygous (odds ratio (OR) = 1.72, 95% confidence interval (CI) = 1.06-2.80, P = 0.027) and homozygous (OR = 8.55, 95% CI = 1.77-41.36, P  lt  0.001) carriers of the variant A allele. On the other hand, IL-1 beta (-511 C/T) polymorphism exerted a protective effect both in heterozygotes (OR = 0.540, 95% CI = 0.332-0.880, P = 0.013) and homozygotes (OR = 0.114, 95% CI = 0.026-0.501, P  lt  0.001). In addition, GSTM1 and GSTT1 null genotypes separately, as well as concomitantly, were associated with an increased risk for AP development (P  lt  0.001). The null GSTT1 genotype increased approximately twice the risk of Epstein-Barr infection (EBV) in AP (OR = 2.17, 95% CI = 1-4.71, P = 0.048), whilst TNF-alpha SNP decreased it, both in heterozygotes (OR = 0.20, 95% CI = 0.08-0.48, P  lt  0.001) and AA homozygotes (OR = 0.07, 95% CI = 0.01-0.37, P = 0.001). Conclusions GSTM and GSTT deletion polymorphisms, as well as TNF alpha (-308 G/A) SNP, are associated with increased risk, whereas IL-1 beta (-511 C/T) polymorphism decreases the risk of AP development. GSTT and TNF alpha polymorphisms also appear to modulate the risk of EBV infection in Serbian patients with AP.
PB  - Wiley, Hoboken
T2  - International Endodontic Journal
T1  - Association of polymorphisms in TNF-alpha, IL-1 beta, GSTM and GSTT genes with apical periodontitis: is there a link with herpesviral infection?
VL  - 53
IS  - 7
SP  - 895
EP  - 904
DO  - 10.1111/iej.13298
ER  - 
@article{
author = "Jakovljević, Aleksandar and Nikolić, Nadja and Čarkić, Jelena and Beljić-Ivanović, Katarina and Soldatović, Ivan and Miletić, Maja and Andrić, Miroslav and Milašin, Jelena",
year = "2020",
abstract = "Aim To investigate the possible association between TNF alpha (-308 G/A) and IL-1 beta (-511 C/T) single nucleotide polymorphisms (SNPs) and GSTT and GSTM deletion polymorphisms and risk of apical periodontitis (AP) development, and determine the association of different genotypes with the presence of herpesviral infection in AP. Methodology The study included 120 periapical lesions and 200 control samples. Gene polymorphism analysis was performed using either polymerase chain reaction (PCR) or PCR/ restriction fragment length polymorphism (RFLP). Relative gene expression of TNF-alpha and IL-1 beta was analysed using reverse transcriptase - real-time PCR. The presence of Epstein-Barr virus (EBV) and human cytomegalovirus (HCMV) was assessed by nested PCR. Chi-square and Fisher's exact tests and logistic regression analyses were done for polymorphisms, whilst Mann-Whitney U-test was performed for the expression analysis. The expected frequency of variants was analysed by the Hardy-Weinberg equilibrium test. Results TNF-alpha (-308 G/A) SNP increased AP susceptibility for heterozygous (odds ratio (OR) = 1.72, 95% confidence interval (CI) = 1.06-2.80, P = 0.027) and homozygous (OR = 8.55, 95% CI = 1.77-41.36, P  lt  0.001) carriers of the variant A allele. On the other hand, IL-1 beta (-511 C/T) polymorphism exerted a protective effect both in heterozygotes (OR = 0.540, 95% CI = 0.332-0.880, P = 0.013) and homozygotes (OR = 0.114, 95% CI = 0.026-0.501, P  lt  0.001). In addition, GSTM1 and GSTT1 null genotypes separately, as well as concomitantly, were associated with an increased risk for AP development (P  lt  0.001). The null GSTT1 genotype increased approximately twice the risk of Epstein-Barr infection (EBV) in AP (OR = 2.17, 95% CI = 1-4.71, P = 0.048), whilst TNF-alpha SNP decreased it, both in heterozygotes (OR = 0.20, 95% CI = 0.08-0.48, P  lt  0.001) and AA homozygotes (OR = 0.07, 95% CI = 0.01-0.37, P = 0.001). Conclusions GSTM and GSTT deletion polymorphisms, as well as TNF alpha (-308 G/A) SNP, are associated with increased risk, whereas IL-1 beta (-511 C/T) polymorphism decreases the risk of AP development. GSTT and TNF alpha polymorphisms also appear to modulate the risk of EBV infection in Serbian patients with AP.",
publisher = "Wiley, Hoboken",
journal = "International Endodontic Journal",
title = "Association of polymorphisms in TNF-alpha, IL-1 beta, GSTM and GSTT genes with apical periodontitis: is there a link with herpesviral infection?",
volume = "53",
number = "7",
pages = "895-904",
doi = "10.1111/iej.13298"
}
Jakovljević, A., Nikolić, N., Čarkić, J., Beljić-Ivanović, K., Soldatović, I., Miletić, M., Andrić, M.,& Milašin, J.. (2020). Association of polymorphisms in TNF-alpha, IL-1 beta, GSTM and GSTT genes with apical periodontitis: is there a link with herpesviral infection?. in International Endodontic Journal
Wiley, Hoboken., 53(7), 895-904.
https://doi.org/10.1111/iej.13298
Jakovljević A, Nikolić N, Čarkić J, Beljić-Ivanović K, Soldatović I, Miletić M, Andrić M, Milašin J. Association of polymorphisms in TNF-alpha, IL-1 beta, GSTM and GSTT genes with apical periodontitis: is there a link with herpesviral infection?. in International Endodontic Journal. 2020;53(7):895-904.
doi:10.1111/iej.13298 .
Jakovljević, Aleksandar, Nikolić, Nadja, Čarkić, Jelena, Beljić-Ivanović, Katarina, Soldatović, Ivan, Miletić, Maja, Andrić, Miroslav, Milašin, Jelena, "Association of polymorphisms in TNF-alpha, IL-1 beta, GSTM and GSTT genes with apical periodontitis: is there a link with herpesviral infection?" in International Endodontic Journal, 53, no. 7 (2020):895-904,
https://doi.org/10.1111/iej.13298 . .
18
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16

Glutathione-S-transferase M1 polymorphism and pro-inflammatory cytokines tumour necrosis factor-alpha and interleukin-1 beta are associated with preeclampsia in Serbian women

Šljivančanin Jakovljević, Tamara; Kontić-Vučinić, Olivera; Nikolić, Nadja; Čarkić, Jelena; Soldatović, Ivan; Milašin, Jelena

(Wiley, Hoboken, 2019)

TY  - JOUR
AU  - Šljivančanin Jakovljević, Tamara
AU  - Kontić-Vučinić, Olivera
AU  - Nikolić, Nadja
AU  - Čarkić, Jelena
AU  - Soldatović, Ivan
AU  - Milašin, Jelena
PY  - 2019
UR  - https://smile.stomf.bg.ac.rs/handle/123456789/2421
AB  - Problem Preeclampsia has a multifactorial origin with genetic, immunological, and environmental factors described as main contributors to its onset. This study aimed to investigate glutathione-S-transferase M1 (GSTM1) and glutathione-S-transferase T1 (GSTT1) gene polymorphisms, the expression of pro-inflammatory cytokines (TNF-alpha, IL-1 beta, IL-6), and the potential relationship between GST polymorphisms and cytokine expression levels in preeclampsia and uncomplicated pregnancy. Method of Study This prospective case-control study included 50 women with preeclampsia and 50 healthy pregnant women. DNA and RNA were extracted from women leukocytes. Deletion polymorphisms were analyzed by PCR, while cytokine mRNA expression was analyzed by real-time PCR. Results GSTM1 null genotype with present GSTT1 increased the risk for preeclampsia development. Deletion of GSTT1 without deletion of GSTM1 increased the risk for early preeclampsia. Relative mRNA expression of TNF-alpha was significantly higher in preeclampsia compared to healthy pregnant women (P = 0.006). Expression of IL-1 beta was significantly higher in severe and late preeclampsia compared to the control group (P = 0.005, P = 0.007, respectively). A significant positive correlation between TNF-alpha and IL-1 beta was observed (Spearman's rho = 0.312, P = 0.028) and between IL-1 beta and IL-6, in preeclampsia group (Spearman's rho = 0.296, P = 0.037). IL-1 beta was significantly increased in patients with GSTT1 null genotype (P = 0.015) while IL-6 was increased in patients with GSTM1 null genotype (P = 0.015). Conclusions GSTM1 null genotype represents a risk factor for preeclampsia development, while GSTT1 null genotype favors early preeclampsia. Preeclampsia is also associated with increased expression of pro-inflammatory cytokines, predominantly TNF-alpha and IL-1 beta.
PB  - Wiley, Hoboken
T2  - American Journal of Reproductive Immunology
T1  - Glutathione-S-transferase M1 polymorphism and pro-inflammatory cytokines tumour necrosis factor-alpha and interleukin-1 beta are associated with preeclampsia in Serbian women
VL  - 81
IS  - 5
DO  - 10.1111/aji.13105
ER  - 
@article{
author = "Šljivančanin Jakovljević, Tamara and Kontić-Vučinić, Olivera and Nikolić, Nadja and Čarkić, Jelena and Soldatović, Ivan and Milašin, Jelena",
year = "2019",
abstract = "Problem Preeclampsia has a multifactorial origin with genetic, immunological, and environmental factors described as main contributors to its onset. This study aimed to investigate glutathione-S-transferase M1 (GSTM1) and glutathione-S-transferase T1 (GSTT1) gene polymorphisms, the expression of pro-inflammatory cytokines (TNF-alpha, IL-1 beta, IL-6), and the potential relationship between GST polymorphisms and cytokine expression levels in preeclampsia and uncomplicated pregnancy. Method of Study This prospective case-control study included 50 women with preeclampsia and 50 healthy pregnant women. DNA and RNA were extracted from women leukocytes. Deletion polymorphisms were analyzed by PCR, while cytokine mRNA expression was analyzed by real-time PCR. Results GSTM1 null genotype with present GSTT1 increased the risk for preeclampsia development. Deletion of GSTT1 without deletion of GSTM1 increased the risk for early preeclampsia. Relative mRNA expression of TNF-alpha was significantly higher in preeclampsia compared to healthy pregnant women (P = 0.006). Expression of IL-1 beta was significantly higher in severe and late preeclampsia compared to the control group (P = 0.005, P = 0.007, respectively). A significant positive correlation between TNF-alpha and IL-1 beta was observed (Spearman's rho = 0.312, P = 0.028) and between IL-1 beta and IL-6, in preeclampsia group (Spearman's rho = 0.296, P = 0.037). IL-1 beta was significantly increased in patients with GSTT1 null genotype (P = 0.015) while IL-6 was increased in patients with GSTM1 null genotype (P = 0.015). Conclusions GSTM1 null genotype represents a risk factor for preeclampsia development, while GSTT1 null genotype favors early preeclampsia. Preeclampsia is also associated with increased expression of pro-inflammatory cytokines, predominantly TNF-alpha and IL-1 beta.",
publisher = "Wiley, Hoboken",
journal = "American Journal of Reproductive Immunology",
title = "Glutathione-S-transferase M1 polymorphism and pro-inflammatory cytokines tumour necrosis factor-alpha and interleukin-1 beta are associated with preeclampsia in Serbian women",
volume = "81",
number = "5",
doi = "10.1111/aji.13105"
}
Šljivančanin Jakovljević, T., Kontić-Vučinić, O., Nikolić, N., Čarkić, J., Soldatović, I.,& Milašin, J.. (2019). Glutathione-S-transferase M1 polymorphism and pro-inflammatory cytokines tumour necrosis factor-alpha and interleukin-1 beta are associated with preeclampsia in Serbian women. in American Journal of Reproductive Immunology
Wiley, Hoboken., 81(5).
https://doi.org/10.1111/aji.13105
Šljivančanin Jakovljević T, Kontić-Vučinić O, Nikolić N, Čarkić J, Soldatović I, Milašin J. Glutathione-S-transferase M1 polymorphism and pro-inflammatory cytokines tumour necrosis factor-alpha and interleukin-1 beta are associated with preeclampsia in Serbian women. in American Journal of Reproductive Immunology. 2019;81(5).
doi:10.1111/aji.13105 .
Šljivančanin Jakovljević, Tamara, Kontić-Vučinić, Olivera, Nikolić, Nadja, Čarkić, Jelena, Soldatović, Ivan, Milašin, Jelena, "Glutathione-S-transferase M1 polymorphism and pro-inflammatory cytokines tumour necrosis factor-alpha and interleukin-1 beta are associated with preeclampsia in Serbian women" in American Journal of Reproductive Immunology, 81, no. 5 (2019),
https://doi.org/10.1111/aji.13105 . .
16
11
16

Notch Signaling Pathway in Apical Periodontitis: Correlation with Bone Resorption Regulators and Proinflammatory Cytokines

Nikolić, Nadja; Jakovljević, Aleksandar; Čarkić, Jelena; Beljić-Ivanović, Katarina; Miletić, Maja; Soldatović, Ivan; Andrić, Miroslav; Ivanović, Vladimir; Milašin, Jelena

(Elsevier Science Inc, New York, 2019)

TY  - JOUR
AU  - Nikolić, Nadja
AU  - Jakovljević, Aleksandar
AU  - Čarkić, Jelena
AU  - Beljić-Ivanović, Katarina
AU  - Miletić, Maja
AU  - Soldatović, Ivan
AU  - Andrić, Miroslav
AU  - Ivanović, Vladimir
AU  - Milašin, Jelena
PY  - 2019
UR  - https://smile.stomf.bg.ac.rs/handle/123456789/2390
AB  - Introduction: The exact mechanisms of periapical bone resorption have not been fully elucidated. This study aimed to analyze the expression of Notch signaling molecules (Notch2, Jagged1, and Hey1) and proinflammatory cytokines (tumor necrosis factor alpha [TNF-alpha], interleukin [IL]-1 beta, and IL-6) in human apical periodontitis lesions with different receptor activator of nuclear factor kappa B ligand (RANKL)/osteo-protegerin (OPG) ratios and determine their potential correlation. Methods: The study group consisted of 50 periapical lesions collected in conjunction with apicoectomy. The relative gene expression of the investigated molecules (Notch2, Jagged1, Hey1, RANKL, OPG, TNF-alpha, IL-1 beta, and IL-6) in all tissue samples was analyzed using reverse transcriptase real-time polymerase chain reaction. The Student t test, Mann-Whitney U test and Spearman correlation were used for statistical analysis. Results: Based on the RANKUOPG ratio, periapical lesions were either RANKL predominant (RANKL > OPG, n = 33) or OPG predominant (RANKL  lt  OPG, n = 17). Symptomatic lesions occurred more frequently in RANKL-predominant compared with OPG-predominant lesions (24 vs 7, P=.029). Notch2,Jagged1, Hey1, and TNF-alpha were significantly overexpressed in lesions with predominant RANKL compared with lesions with predominant OPG (P =.001, P =.001, P =.027, and P =.016, respectively). Significant correlations were observed between the investigated genes in periapical lesions. Conclusions: Notch signaling appeared to be activated in periapical inflammation. An increase in Notch2, Jagged1, Hey1, and TNF-alpha expression in RANKL-predominant periapical lesions corroborates their joined involvement in extensive periapical bone resorption.
PB  - Elsevier Science Inc, New York
T2  - Journal of Endodontics
T1  - Notch Signaling Pathway in Apical Periodontitis: Correlation with Bone Resorption Regulators and Proinflammatory Cytokines
VL  - 45
IS  - 2
SP  - 123
EP  - 128
DO  - 10.1016/j.joen.2018.10.015
ER  - 
@article{
author = "Nikolić, Nadja and Jakovljević, Aleksandar and Čarkić, Jelena and Beljić-Ivanović, Katarina and Miletić, Maja and Soldatović, Ivan and Andrić, Miroslav and Ivanović, Vladimir and Milašin, Jelena",
year = "2019",
abstract = "Introduction: The exact mechanisms of periapical bone resorption have not been fully elucidated. This study aimed to analyze the expression of Notch signaling molecules (Notch2, Jagged1, and Hey1) and proinflammatory cytokines (tumor necrosis factor alpha [TNF-alpha], interleukin [IL]-1 beta, and IL-6) in human apical periodontitis lesions with different receptor activator of nuclear factor kappa B ligand (RANKL)/osteo-protegerin (OPG) ratios and determine their potential correlation. Methods: The study group consisted of 50 periapical lesions collected in conjunction with apicoectomy. The relative gene expression of the investigated molecules (Notch2, Jagged1, Hey1, RANKL, OPG, TNF-alpha, IL-1 beta, and IL-6) in all tissue samples was analyzed using reverse transcriptase real-time polymerase chain reaction. The Student t test, Mann-Whitney U test and Spearman correlation were used for statistical analysis. Results: Based on the RANKUOPG ratio, periapical lesions were either RANKL predominant (RANKL > OPG, n = 33) or OPG predominant (RANKL  lt  OPG, n = 17). Symptomatic lesions occurred more frequently in RANKL-predominant compared with OPG-predominant lesions (24 vs 7, P=.029). Notch2,Jagged1, Hey1, and TNF-alpha were significantly overexpressed in lesions with predominant RANKL compared with lesions with predominant OPG (P =.001, P =.001, P =.027, and P =.016, respectively). Significant correlations were observed between the investigated genes in periapical lesions. Conclusions: Notch signaling appeared to be activated in periapical inflammation. An increase in Notch2, Jagged1, Hey1, and TNF-alpha expression in RANKL-predominant periapical lesions corroborates their joined involvement in extensive periapical bone resorption.",
publisher = "Elsevier Science Inc, New York",
journal = "Journal of Endodontics",
title = "Notch Signaling Pathway in Apical Periodontitis: Correlation with Bone Resorption Regulators and Proinflammatory Cytokines",
volume = "45",
number = "2",
pages = "123-128",
doi = "10.1016/j.joen.2018.10.015"
}
Nikolić, N., Jakovljević, A., Čarkić, J., Beljić-Ivanović, K., Miletić, M., Soldatović, I., Andrić, M., Ivanović, V.,& Milašin, J.. (2019). Notch Signaling Pathway in Apical Periodontitis: Correlation with Bone Resorption Regulators and Proinflammatory Cytokines. in Journal of Endodontics
Elsevier Science Inc, New York., 45(2), 123-128.
https://doi.org/10.1016/j.joen.2018.10.015
Nikolić N, Jakovljević A, Čarkić J, Beljić-Ivanović K, Miletić M, Soldatović I, Andrić M, Ivanović V, Milašin J. Notch Signaling Pathway in Apical Periodontitis: Correlation with Bone Resorption Regulators and Proinflammatory Cytokines. in Journal of Endodontics. 2019;45(2):123-128.
doi:10.1016/j.joen.2018.10.015 .
Nikolić, Nadja, Jakovljević, Aleksandar, Čarkić, Jelena, Beljić-Ivanović, Katarina, Miletić, Maja, Soldatović, Ivan, Andrić, Miroslav, Ivanović, Vladimir, Milašin, Jelena, "Notch Signaling Pathway in Apical Periodontitis: Correlation with Bone Resorption Regulators and Proinflammatory Cytokines" in Journal of Endodontics, 45, no. 2 (2019):123-128,
https://doi.org/10.1016/j.joen.2018.10.015 . .
1
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11
28

Genetic and epigenetic alterations in the tumour, tumour margins, and normal buccal mucosa of patients with oral cancer

Eljabo, Najib; Nikolić, Nadja; Čarkić, Jelena; Jelovac, Drago; Lazarević, M.; Tanić, Nasta; Milašin, Jelena

(Churchill Livingstone, Edinburgh, 2018)

TY  - JOUR
AU  - Eljabo, Najib
AU  - Nikolić, Nadja
AU  - Čarkić, Jelena
AU  - Jelovac, Drago
AU  - Lazarević, M.
AU  - Tanić, Nasta
AU  - Milašin, Jelena
PY  - 2018
UR  - https://smile.stomf.bg.ac.rs/handle/123456789/2301
AB  - Despite adequate surgical resection, oral squamous cell carcinoma (OSCC) shows a high rate of recurrence and metastasis, which could be explained by the presence of molecular alterations in seemingly normal tumour margins and the entire oral mucosa. The aims of this study were (1) to assess the presence of gene amplification (c-Myc and HER2) and promoter methylation (p14 and p16) in the tumours, tumour margins, and unaffected oral mucosa of 40 OSCC patients, and (2) to evaluate the possibility of using these alterations as prognostic markers. c-Myc and HER2 genes were quantified by means of real-time PCR (qPCR), and p14 and p16 methylation status was determined by methylation-specific PCR (MSP PCR). All tissues examined exhibited molecular alterations in various proportions. Tumour tissues, as expected, showed the highest prevalence of alterations, while oral mucosa showed the lowest. Multiple alterations (co-alterations) in tumours and tumour margins were significantly more frequent than in unaffected oral mucosa (P  lt  0.001 and P = 0.027, respectively). HER2 amplification in margin tissue (P  lt  0.001) and swabs (P = 0.013), as well as the existence of three co-alterations in margins (P = 0.001) and macroscopically unaffected oral mucosa (P  lt  0.001) were correlated with shorter disease-specific survival.
PB  - Churchill Livingstone, Edinburgh
T2  - International Journal of Oral & Maxillofacial Surgery
T1  - Genetic and epigenetic alterations in the tumour, tumour margins, and normal buccal mucosa of patients with oral cancer
VL  - 47
IS  - 8
SP  - 976
EP  - 982
DO  - 10.1016/j.ijom.2018.01.020
ER  - 
@article{
author = "Eljabo, Najib and Nikolić, Nadja and Čarkić, Jelena and Jelovac, Drago and Lazarević, M. and Tanić, Nasta and Milašin, Jelena",
year = "2018",
abstract = "Despite adequate surgical resection, oral squamous cell carcinoma (OSCC) shows a high rate of recurrence and metastasis, which could be explained by the presence of molecular alterations in seemingly normal tumour margins and the entire oral mucosa. The aims of this study were (1) to assess the presence of gene amplification (c-Myc and HER2) and promoter methylation (p14 and p16) in the tumours, tumour margins, and unaffected oral mucosa of 40 OSCC patients, and (2) to evaluate the possibility of using these alterations as prognostic markers. c-Myc and HER2 genes were quantified by means of real-time PCR (qPCR), and p14 and p16 methylation status was determined by methylation-specific PCR (MSP PCR). All tissues examined exhibited molecular alterations in various proportions. Tumour tissues, as expected, showed the highest prevalence of alterations, while oral mucosa showed the lowest. Multiple alterations (co-alterations) in tumours and tumour margins were significantly more frequent than in unaffected oral mucosa (P  lt  0.001 and P = 0.027, respectively). HER2 amplification in margin tissue (P  lt  0.001) and swabs (P = 0.013), as well as the existence of three co-alterations in margins (P = 0.001) and macroscopically unaffected oral mucosa (P  lt  0.001) were correlated with shorter disease-specific survival.",
publisher = "Churchill Livingstone, Edinburgh",
journal = "International Journal of Oral & Maxillofacial Surgery",
title = "Genetic and epigenetic alterations in the tumour, tumour margins, and normal buccal mucosa of patients with oral cancer",
volume = "47",
number = "8",
pages = "976-982",
doi = "10.1016/j.ijom.2018.01.020"
}
Eljabo, N., Nikolić, N., Čarkić, J., Jelovac, D., Lazarević, M., Tanić, N.,& Milašin, J.. (2018). Genetic and epigenetic alterations in the tumour, tumour margins, and normal buccal mucosa of patients with oral cancer. in International Journal of Oral & Maxillofacial Surgery
Churchill Livingstone, Edinburgh., 47(8), 976-982.
https://doi.org/10.1016/j.ijom.2018.01.020
Eljabo N, Nikolić N, Čarkić J, Jelovac D, Lazarević M, Tanić N, Milašin J. Genetic and epigenetic alterations in the tumour, tumour margins, and normal buccal mucosa of patients with oral cancer. in International Journal of Oral & Maxillofacial Surgery. 2018;47(8):976-982.
doi:10.1016/j.ijom.2018.01.020 .
Eljabo, Najib, Nikolić, Nadja, Čarkić, Jelena, Jelovac, Drago, Lazarević, M., Tanić, Nasta, Milašin, Jelena, "Genetic and epigenetic alterations in the tumour, tumour margins, and normal buccal mucosa of patients with oral cancer" in International Journal of Oral & Maxillofacial Surgery, 47, no. 8 (2018):976-982,
https://doi.org/10.1016/j.ijom.2018.01.020 . .
1
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25

P14 methylation: an epigenetic signature of salivary gland mucoepidermoid carcinoma in the Serbian population

Nikolić, Nadja; Čarkić, Jelena; Ilic-Dimitrijević, Ivana; Eljabo, Najib; Radunović, Milena; Aničić, Boban; Tanić, Nasta; Falk, Markus; Milašin, Jelena

(Elsevier Science Inc, New York, 2018)

TY  - JOUR
AU  - Nikolić, Nadja
AU  - Čarkić, Jelena
AU  - Ilic-Dimitrijević, Ivana
AU  - Eljabo, Najib
AU  - Radunović, Milena
AU  - Aničić, Boban
AU  - Tanić, Nasta
AU  - Falk, Markus
AU  - Milašin, Jelena
PY  - 2018
UR  - https://smile.stomf.bg.ac.rs/handle/123456789/2317
AB  - Objective. To investigate the prevalence of p16(INK4) (a), p14(ARF), tumor protein p53 (TP53), and human telomerase reverse transcriptase (hTERT) promoter hypermethylation in mucoepidermoid carcinomas (MECs) and search for a possible association between methylation status and clinicopathological parameters. Study design. DNA extracted from 35 formalin-fixed and paraffin-embedded MEC samples and 10 normal salivary gland (NSG) tissue samples was analyzed for the presence of promoter hypermethylation using methylation-specific polymerase chain reaction testing. Results. The percentages of gene hypermethylation in MECs versus NSGs were the following: p14: 100% versus 20% (P  lt  .001); p16: 60% versus 20% (P = .035); hTERT: 54.3% versus 20% (P = .078); and TP53: 31.4% versus 30% (P = .981). Multiple sites were found to be methylated in 86% of MECs compared with 10% in NSGs (P  lt  .001). TP53 and hTERT were more often methylated in lower clinical stages (P = .033 and P = .005, respectively). Conclusions. Hypermethylation of p14 appears to be an important event in the development of mucoepidermoid carcinoma. High frequency of gene hypermethylation and high incidence of methylation at multiple sites point to the importance of epigenetic phenomena in the pathogenesis of MECs, although with modest impact on clinical parameters.
PB  - Elsevier Science Inc, New York
T2  - Oral Surgery, Oral Medicine, Oral Pathology, Oral Radiology
T1  - P14 methylation: an epigenetic signature of salivary gland mucoepidermoid carcinoma in the Serbian population
VL  - 125
IS  - 1
SP  - 52
EP  - 58
DO  - 10.1016/j.oooo.2017.09.013
ER  - 
@article{
author = "Nikolić, Nadja and Čarkić, Jelena and Ilic-Dimitrijević, Ivana and Eljabo, Najib and Radunović, Milena and Aničić, Boban and Tanić, Nasta and Falk, Markus and Milašin, Jelena",
year = "2018",
abstract = "Objective. To investigate the prevalence of p16(INK4) (a), p14(ARF), tumor protein p53 (TP53), and human telomerase reverse transcriptase (hTERT) promoter hypermethylation in mucoepidermoid carcinomas (MECs) and search for a possible association between methylation status and clinicopathological parameters. Study design. DNA extracted from 35 formalin-fixed and paraffin-embedded MEC samples and 10 normal salivary gland (NSG) tissue samples was analyzed for the presence of promoter hypermethylation using methylation-specific polymerase chain reaction testing. Results. The percentages of gene hypermethylation in MECs versus NSGs were the following: p14: 100% versus 20% (P  lt  .001); p16: 60% versus 20% (P = .035); hTERT: 54.3% versus 20% (P = .078); and TP53: 31.4% versus 30% (P = .981). Multiple sites were found to be methylated in 86% of MECs compared with 10% in NSGs (P  lt  .001). TP53 and hTERT were more often methylated in lower clinical stages (P = .033 and P = .005, respectively). Conclusions. Hypermethylation of p14 appears to be an important event in the development of mucoepidermoid carcinoma. High frequency of gene hypermethylation and high incidence of methylation at multiple sites point to the importance of epigenetic phenomena in the pathogenesis of MECs, although with modest impact on clinical parameters.",
publisher = "Elsevier Science Inc, New York",
journal = "Oral Surgery, Oral Medicine, Oral Pathology, Oral Radiology",
title = "P14 methylation: an epigenetic signature of salivary gland mucoepidermoid carcinoma in the Serbian population",
volume = "125",
number = "1",
pages = "52-58",
doi = "10.1016/j.oooo.2017.09.013"
}
Nikolić, N., Čarkić, J., Ilic-Dimitrijević, I., Eljabo, N., Radunović, M., Aničić, B., Tanić, N., Falk, M.,& Milašin, J.. (2018). P14 methylation: an epigenetic signature of salivary gland mucoepidermoid carcinoma in the Serbian population. in Oral Surgery, Oral Medicine, Oral Pathology, Oral Radiology
Elsevier Science Inc, New York., 125(1), 52-58.
https://doi.org/10.1016/j.oooo.2017.09.013
Nikolić N, Čarkić J, Ilic-Dimitrijević I, Eljabo N, Radunović M, Aničić B, Tanić N, Falk M, Milašin J. P14 methylation: an epigenetic signature of salivary gland mucoepidermoid carcinoma in the Serbian population. in Oral Surgery, Oral Medicine, Oral Pathology, Oral Radiology. 2018;125(1):52-58.
doi:10.1016/j.oooo.2017.09.013 .
Nikolić, Nadja, Čarkić, Jelena, Ilic-Dimitrijević, Ivana, Eljabo, Najib, Radunović, Milena, Aničić, Boban, Tanić, Nasta, Falk, Markus, Milašin, Jelena, "P14 methylation: an epigenetic signature of salivary gland mucoepidermoid carcinoma in the Serbian population" in Oral Surgery, Oral Medicine, Oral Pathology, Oral Radiology, 125, no. 1 (2018):52-58,
https://doi.org/10.1016/j.oooo.2017.09.013 . .
2
12
6
12

Levels of oxidative stress biomarkers and bone resorption regulators in apical periodontitis lesions infected by Epstein-Barr virus

Jakovljević, Aleksandar; Andrić, Miroslav; Nikolić, Nadja; Corić, V.; Krezović, S.; Čarkić, Jelena; Knežević, Aleksandra; Beljić-Ivanović, Katarina; Pljesa-Ercegovac, M.; Miletić, Maja; Soldatović, Ivan; Radosavljević, T.; Jovanović, T.; Simić, T.; Ivanović, Vladimir; Milašin, Jelena

(Wiley, Hoboken, 2018)

TY  - JOUR
AU  - Jakovljević, Aleksandar
AU  - Andrić, Miroslav
AU  - Nikolić, Nadja
AU  - Corić, V.
AU  - Krezović, S.
AU  - Čarkić, Jelena
AU  - Knežević, Aleksandra
AU  - Beljić-Ivanović, Katarina
AU  - Pljesa-Ercegovac, M.
AU  - Miletić, Maja
AU  - Soldatović, Ivan
AU  - Radosavljević, T.
AU  - Jovanović, T.
AU  - Simić, T.
AU  - Ivanović, Vladimir
AU  - Milašin, Jelena
PY  - 2018
UR  - https://smile.stomf.bg.ac.rs/handle/123456789/2293
AB  - AimTo investigate whether apical periodontitis lesions infected by Epstein-Barr virus (EBV) exhibit higher levels of oxidative stress biomarkers [8-hydroxydeoxyguanosine (8-OHdG) and oxidized glutathione (GSSG)] and bone resorption regulators [receptor activator of nuclear factor (NF-B) ligand (RANKL) and osteoprotegerin (OPG)] compared to EBV-negative periapical lesions and healthy pulp tissues. MethodologyThe experimental group consisted of 30 EBV-positive and 30 EBV-negative periapical lesions collected in conjunction with apicoectomy. The pulp tissues of 20 impacted third molars were used as healthy controls. The qualitative and quantitative analysis of EBV was performed by nested and real-time polymerase chain reaction (PCR), respectively. The levels of RANKL and OPG were analysed by reverse transcriptase real-time PCR. The levels of 8-OHdG and GSSG were determined by enzyme-linked immunosorbent assay (ELISA). Mann-Whitney U-test and Spearman's correlation were used for statistical analysis. ResultsThe levels of RANKL, OPG, 8-OHdG and GSSG were significantly higher in apical periodontitis lesions compared to healthy pulp controls (P=0.001, P lt 0.001, P lt 0.001 and P lt 0.05, respectively). RANKL and OPG mRNA expression was significantly higher in EBV-positive compared to EBV-negative periapical lesions (P lt 0.05). There was no significant correlation between EBV copy numbers and levels of RANKL, OPG, 8OH-dG and GSSG in apical periodontitis. ConclusionLevels of bone resorption regulators and oxidative stress biomarkers were increased in apical periodontitis compared to healthy pulp tissues. EBV-positive periapical lesions exhibited higher levels of RANKL and OPG compared to EBV-negative periapical lesions. EBV may contribute to progression of apical periodontitis via enhanced production of bone resorption regulators.
PB  - Wiley, Hoboken
T2  - International Endodontic Journal
T1  - Levels of oxidative stress biomarkers and bone resorption regulators in apical periodontitis lesions infected by Epstein-Barr virus
VL  - 51
IS  - 6
SP  - 593
EP  - 604
DO  - 10.1111/iej.12886
ER  - 
@article{
author = "Jakovljević, Aleksandar and Andrić, Miroslav and Nikolić, Nadja and Corić, V. and Krezović, S. and Čarkić, Jelena and Knežević, Aleksandra and Beljić-Ivanović, Katarina and Pljesa-Ercegovac, M. and Miletić, Maja and Soldatović, Ivan and Radosavljević, T. and Jovanović, T. and Simić, T. and Ivanović, Vladimir and Milašin, Jelena",
year = "2018",
abstract = "AimTo investigate whether apical periodontitis lesions infected by Epstein-Barr virus (EBV) exhibit higher levels of oxidative stress biomarkers [8-hydroxydeoxyguanosine (8-OHdG) and oxidized glutathione (GSSG)] and bone resorption regulators [receptor activator of nuclear factor (NF-B) ligand (RANKL) and osteoprotegerin (OPG)] compared to EBV-negative periapical lesions and healthy pulp tissues. MethodologyThe experimental group consisted of 30 EBV-positive and 30 EBV-negative periapical lesions collected in conjunction with apicoectomy. The pulp tissues of 20 impacted third molars were used as healthy controls. The qualitative and quantitative analysis of EBV was performed by nested and real-time polymerase chain reaction (PCR), respectively. The levels of RANKL and OPG were analysed by reverse transcriptase real-time PCR. The levels of 8-OHdG and GSSG were determined by enzyme-linked immunosorbent assay (ELISA). Mann-Whitney U-test and Spearman's correlation were used for statistical analysis. ResultsThe levels of RANKL, OPG, 8-OHdG and GSSG were significantly higher in apical periodontitis lesions compared to healthy pulp controls (P=0.001, P lt 0.001, P lt 0.001 and P lt 0.05, respectively). RANKL and OPG mRNA expression was significantly higher in EBV-positive compared to EBV-negative periapical lesions (P lt 0.05). There was no significant correlation between EBV copy numbers and levels of RANKL, OPG, 8OH-dG and GSSG in apical periodontitis. ConclusionLevels of bone resorption regulators and oxidative stress biomarkers were increased in apical periodontitis compared to healthy pulp tissues. EBV-positive periapical lesions exhibited higher levels of RANKL and OPG compared to EBV-negative periapical lesions. EBV may contribute to progression of apical periodontitis via enhanced production of bone resorption regulators.",
publisher = "Wiley, Hoboken",
journal = "International Endodontic Journal",
title = "Levels of oxidative stress biomarkers and bone resorption regulators in apical periodontitis lesions infected by Epstein-Barr virus",
volume = "51",
number = "6",
pages = "593-604",
doi = "10.1111/iej.12886"
}
Jakovljević, A., Andrić, M., Nikolić, N., Corić, V., Krezović, S., Čarkić, J., Knežević, A., Beljić-Ivanović, K., Pljesa-Ercegovac, M., Miletić, M., Soldatović, I., Radosavljević, T., Jovanović, T., Simić, T., Ivanović, V.,& Milašin, J.. (2018). Levels of oxidative stress biomarkers and bone resorption regulators in apical periodontitis lesions infected by Epstein-Barr virus. in International Endodontic Journal
Wiley, Hoboken., 51(6), 593-604.
https://doi.org/10.1111/iej.12886
Jakovljević A, Andrić M, Nikolić N, Corić V, Krezović S, Čarkić J, Knežević A, Beljić-Ivanović K, Pljesa-Ercegovac M, Miletić M, Soldatović I, Radosavljević T, Jovanović T, Simić T, Ivanović V, Milašin J. Levels of oxidative stress biomarkers and bone resorption regulators in apical periodontitis lesions infected by Epstein-Barr virus. in International Endodontic Journal. 2018;51(6):593-604.
doi:10.1111/iej.12886 .
Jakovljević, Aleksandar, Andrić, Miroslav, Nikolić, Nadja, Corić, V., Krezović, S., Čarkić, Jelena, Knežević, Aleksandra, Beljić-Ivanović, Katarina, Pljesa-Ercegovac, M., Miletić, Maja, Soldatović, Ivan, Radosavljević, T., Jovanović, T., Simić, T., Ivanović, Vladimir, Milašin, Jelena, "Levels of oxidative stress biomarkers and bone resorption regulators in apical periodontitis lesions infected by Epstein-Barr virus" in International Endodontic Journal, 51, no. 6 (2018):593-604,
https://doi.org/10.1111/iej.12886 . .
21
13
21

HTERT promoter methylation and single nucleotide polymorphism (-245 T > C) affect renal cell carcinoma behavior in Serbian population

Trifunović, Jovanka; Basta-Jovanović, Gordana; Nikolić, Nadja; Čarkić, Jelena; Marjanović, Ana; Branković, Marija; Radojević-Škodrić, Sanja; Prvanović, Mirjana; Jovanović, Aleksandar; Džamić, Zoran; Milašin, Jelena

(Balkan Union of Oncology (B.U.ON.), 2018)

TY  - JOUR
AU  - Trifunović, Jovanka
AU  - Basta-Jovanović, Gordana
AU  - Nikolić, Nadja
AU  - Čarkić, Jelena
AU  - Marjanović, Ana
AU  - Branković, Marija
AU  - Radojević-Škodrić, Sanja
AU  - Prvanović, Mirjana
AU  - Jovanović, Aleksandar
AU  - Džamić, Zoran
AU  - Milašin, Jelena
PY  - 2018
UR  - https://smile.stomf.bg.ac.rs/handle/123456789/2272
AB  - Purpose: Renal cell carcinoma (RCC) is the most common renal cancer in adults and includes several subtypes that may be distinguished by their histology, genetic background, clinical course and responses to treatment. Human telomerase reverse transcriptase (hTERT), a crucial enzyme for telomere maintenance, has been linked to RCC development. The purpose of this study was to search for genetic and epigenetic alterations in hTERT (promoter mutations and methylation and gene amplification), and to establish a possible association between molecular and clinico-pathological characteristics of RCC. Methods: DNA was extracted from 31 formalin fixed, para,, n-embedded tumor samples and 23 blood samples from 54 patients with RCC. Polymerase chain reaction (PCR) products were sequenced and analyzed using the Sequencher software. HTERT amplification was determined by quantitative PCR, while the promoter methylation status was assessed by methylation specific PCR. Statistical analysis was performed using SPSS. Results: No mutations could be detected in the hTERT promoter but only a single nucleotide polymorphism (SNP) (-245 T > C). In 54 analyzed RCC cases, the variant allele C was present in homozygous or heterozygous form in 48% of the patients. The C allele was significantly more frequent in low grade tumors (p=0.046). Gene amplification was detected in 19.4% of the 31 RCCs and hTERT methylation in 54.8% of the 31 samples. An association was established between methylation and histological type of RCC (p=0.047). Conclusions: HTERT seems to be implicated in RCC pathogenesis since the promoter polymorphism exerts a modulation effect on tumor behavior. In addition, hTERT promoter methylation status is related to RCC histology.
PB  - Balkan Union of Oncology (B.U.ON.)
T2  - Journal of BUON
T1  - HTERT promoter methylation and single nucleotide polymorphism (-245 T > C) affect renal cell carcinoma behavior in Serbian population
VL  - 23
IS  - 6
SP  - 1887
EP  - 1892
UR  - https://hdl.handle.net/21.15107/rcub_smile_2272
ER  - 
@article{
author = "Trifunović, Jovanka and Basta-Jovanović, Gordana and Nikolić, Nadja and Čarkić, Jelena and Marjanović, Ana and Branković, Marija and Radojević-Škodrić, Sanja and Prvanović, Mirjana and Jovanović, Aleksandar and Džamić, Zoran and Milašin, Jelena",
year = "2018",
abstract = "Purpose: Renal cell carcinoma (RCC) is the most common renal cancer in adults and includes several subtypes that may be distinguished by their histology, genetic background, clinical course and responses to treatment. Human telomerase reverse transcriptase (hTERT), a crucial enzyme for telomere maintenance, has been linked to RCC development. The purpose of this study was to search for genetic and epigenetic alterations in hTERT (promoter mutations and methylation and gene amplification), and to establish a possible association between molecular and clinico-pathological characteristics of RCC. Methods: DNA was extracted from 31 formalin fixed, para,, n-embedded tumor samples and 23 blood samples from 54 patients with RCC. Polymerase chain reaction (PCR) products were sequenced and analyzed using the Sequencher software. HTERT amplification was determined by quantitative PCR, while the promoter methylation status was assessed by methylation specific PCR. Statistical analysis was performed using SPSS. Results: No mutations could be detected in the hTERT promoter but only a single nucleotide polymorphism (SNP) (-245 T > C). In 54 analyzed RCC cases, the variant allele C was present in homozygous or heterozygous form in 48% of the patients. The C allele was significantly more frequent in low grade tumors (p=0.046). Gene amplification was detected in 19.4% of the 31 RCCs and hTERT methylation in 54.8% of the 31 samples. An association was established between methylation and histological type of RCC (p=0.047). Conclusions: HTERT seems to be implicated in RCC pathogenesis since the promoter polymorphism exerts a modulation effect on tumor behavior. In addition, hTERT promoter methylation status is related to RCC histology.",
publisher = "Balkan Union of Oncology (B.U.ON.)",
journal = "Journal of BUON",
title = "HTERT promoter methylation and single nucleotide polymorphism (-245 T > C) affect renal cell carcinoma behavior in Serbian population",
volume = "23",
number = "6",
pages = "1887-1892",
url = "https://hdl.handle.net/21.15107/rcub_smile_2272"
}
Trifunović, J., Basta-Jovanović, G., Nikolić, N., Čarkić, J., Marjanović, A., Branković, M., Radojević-Škodrić, S., Prvanović, M., Jovanović, A., Džamić, Z.,& Milašin, J.. (2018). HTERT promoter methylation and single nucleotide polymorphism (-245 T > C) affect renal cell carcinoma behavior in Serbian population. in Journal of BUON
Balkan Union of Oncology (B.U.ON.)., 23(6), 1887-1892.
https://hdl.handle.net/21.15107/rcub_smile_2272
Trifunović J, Basta-Jovanović G, Nikolić N, Čarkić J, Marjanović A, Branković M, Radojević-Škodrić S, Prvanović M, Jovanović A, Džamić Z, Milašin J. HTERT promoter methylation and single nucleotide polymorphism (-245 T > C) affect renal cell carcinoma behavior in Serbian population. in Journal of BUON. 2018;23(6):1887-1892.
https://hdl.handle.net/21.15107/rcub_smile_2272 .
Trifunović, Jovanka, Basta-Jovanović, Gordana, Nikolić, Nadja, Čarkić, Jelena, Marjanović, Ana, Branković, Marija, Radojević-Škodrić, Sanja, Prvanović, Mirjana, Jovanović, Aleksandar, Džamić, Zoran, Milašin, Jelena, "HTERT promoter methylation and single nucleotide polymorphism (-245 T > C) affect renal cell carcinoma behavior in Serbian population" in Journal of BUON, 23, no. 6 (2018):1887-1892,
https://hdl.handle.net/21.15107/rcub_smile_2272 .
2

The amplification of c-erb-B2 in cancer-free surgical margins is a predictor of poor outcome in oral squamous cell carcinoma

Jelovac, Drago; Tepavčević, Zvezdana; Nikolić, Nadja; Ilić, Branislav; Eljabo, Najib; Popović, Branka; Čarkić, Jelena; Konstantinović, Vitomir; Vukadinović, Miroslav; Miličić, Biljana; Milašin, Jelena

(Churchill Livingstone, Edinburgh, 2016)

TY  - JOUR
AU  - Jelovac, Drago
AU  - Tepavčević, Zvezdana
AU  - Nikolić, Nadja
AU  - Ilić, Branislav
AU  - Eljabo, Najib
AU  - Popović, Branka
AU  - Čarkić, Jelena
AU  - Konstantinović, Vitomir
AU  - Vukadinović, Miroslav
AU  - Miličić, Biljana
AU  - Milašin, Jelena
PY  - 2016
UR  - https://smile.stomf.bg.ac.rs/handle/123456789/2180
AB  - The tumour subtype, TNM classification, and histopathological data are sometimes not sufficient for understanding and assessing the behaviour of oral cancers. In an attempt to find additional markers of tumour biology and behaviour, this study sought to determine the incidence and consequently the relevance of c-erb-B2, c-Myc, and H-ras gene alterations in tumour-free margins of oral squamous cell carcinoma (OSCC). Fifty samples of OSCC were analyzed for c-erb-B2 and c-Myc amplification by real-time polymerase chain reaction and for H-ras point mutations by sequencing. A relatively high incidence of genetic lesions was detected: 22% of cases had c-erb-B2 and 30% had c-Myc amplification, whilst only 12% harboured H-ras mutations. Kaplan-Meier analysis and the log-rank test showed statistically significant differences in 5-year survival rates and relapse between patients with tumour margins positive for c-erb-B2 amplification and those with margins that were negative (P = 0.002). H-ras and c-Myc alterations could not be associated with tumour behaviour. Molecular analysis of margins, targeting cancer genes, could identify additional, independent predictors of risk and outcome in OSCC.
PB  - Churchill Livingstone, Edinburgh
T2  - International Journal of Oral & Maxillofacial Surgery
T1  - The amplification of c-erb-B2 in cancer-free surgical margins is a predictor of poor outcome in oral squamous cell carcinoma
VL  - 45
IS  - 6
SP  - 700
EP  - 705
DO  - 10.1016/j.ijom.2015.11.014
ER  - 
@article{
author = "Jelovac, Drago and Tepavčević, Zvezdana and Nikolić, Nadja and Ilić, Branislav and Eljabo, Najib and Popović, Branka and Čarkić, Jelena and Konstantinović, Vitomir and Vukadinović, Miroslav and Miličić, Biljana and Milašin, Jelena",
year = "2016",
abstract = "The tumour subtype, TNM classification, and histopathological data are sometimes not sufficient for understanding and assessing the behaviour of oral cancers. In an attempt to find additional markers of tumour biology and behaviour, this study sought to determine the incidence and consequently the relevance of c-erb-B2, c-Myc, and H-ras gene alterations in tumour-free margins of oral squamous cell carcinoma (OSCC). Fifty samples of OSCC were analyzed for c-erb-B2 and c-Myc amplification by real-time polymerase chain reaction and for H-ras point mutations by sequencing. A relatively high incidence of genetic lesions was detected: 22% of cases had c-erb-B2 and 30% had c-Myc amplification, whilst only 12% harboured H-ras mutations. Kaplan-Meier analysis and the log-rank test showed statistically significant differences in 5-year survival rates and relapse between patients with tumour margins positive for c-erb-B2 amplification and those with margins that were negative (P = 0.002). H-ras and c-Myc alterations could not be associated with tumour behaviour. Molecular analysis of margins, targeting cancer genes, could identify additional, independent predictors of risk and outcome in OSCC.",
publisher = "Churchill Livingstone, Edinburgh",
journal = "International Journal of Oral & Maxillofacial Surgery",
title = "The amplification of c-erb-B2 in cancer-free surgical margins is a predictor of poor outcome in oral squamous cell carcinoma",
volume = "45",
number = "6",
pages = "700-705",
doi = "10.1016/j.ijom.2015.11.014"
}
Jelovac, D., Tepavčević, Z., Nikolić, N., Ilić, B., Eljabo, N., Popović, B., Čarkić, J., Konstantinović, V., Vukadinović, M., Miličić, B.,& Milašin, J.. (2016). The amplification of c-erb-B2 in cancer-free surgical margins is a predictor of poor outcome in oral squamous cell carcinoma. in International Journal of Oral & Maxillofacial Surgery
Churchill Livingstone, Edinburgh., 45(6), 700-705.
https://doi.org/10.1016/j.ijom.2015.11.014
Jelovac D, Tepavčević Z, Nikolić N, Ilić B, Eljabo N, Popović B, Čarkić J, Konstantinović V, Vukadinović M, Miličić B, Milašin J. The amplification of c-erb-B2 in cancer-free surgical margins is a predictor of poor outcome in oral squamous cell carcinoma. in International Journal of Oral & Maxillofacial Surgery. 2016;45(6):700-705.
doi:10.1016/j.ijom.2015.11.014 .
Jelovac, Drago, Tepavčević, Zvezdana, Nikolić, Nadja, Ilić, Branislav, Eljabo, Najib, Popović, Branka, Čarkić, Jelena, Konstantinović, Vitomir, Vukadinović, Miroslav, Miličić, Biljana, Milašin, Jelena, "The amplification of c-erb-B2 in cancer-free surgical margins is a predictor of poor outcome in oral squamous cell carcinoma" in International Journal of Oral & Maxillofacial Surgery, 45, no. 6 (2016):700-705,
https://doi.org/10.1016/j.ijom.2015.11.014 . .
12
7
12

The role of TERT-CLPTM1L SNPs, hTERT expression and telomere length in the pathogenesis of oral squamous cell carcinoma

Čarkić, Jelena; Nikolić, Nadja; Radojević-Škodrić, Sanja; Kuzmanović-Pfićer, Jovana; Brajović, Gavrilo; Antunović, Marija; Milašin, Jelena; Popović, Branka

(Nihon Univ, School Dentistry, Toyko, 2016)

TY  - JOUR
AU  - Čarkić, Jelena
AU  - Nikolić, Nadja
AU  - Radojević-Škodrić, Sanja
AU  - Kuzmanović-Pfićer, Jovana
AU  - Brajović, Gavrilo
AU  - Antunović, Marija
AU  - Milašin, Jelena
AU  - Popović, Branka
PY  - 2016
UR  - https://smile.stomf.bg.ac.rs/handle/123456789/2115
AB  - The aim of this study was to assess TERT-CLPTM1L single-nucleotide polymorphisms (SNPs) (rs402710 C/T in the CLPTM1L gene; rs2736100 A/C and rs2736098 G/A in the TERT gene) as risk factors for development of oral squamous cell carcinoma (OSCC), and to investigate the relationship between the analyzed polymorphisms, relative telomere length (RTL), telomerase expression and clinicopathologic characteristics of OSCC in a Serbian population. Paraffin-embedded tumor samples and buccal swabs from cancer-free controls were genotyped using PCR-RFLP, while tumor RTL values and telomerase expression were estimated by real-time PCR and immunohistochemistry, respectively. CLPTM1L rs402710 and TERT rs2736100 polymorphisms were associated with a significantly increased risk of OSCC, and TERT rs2736098 with a significantly decreased risk. No significant association was found between TERT-CLPTM1L polymorphisms, tumor RTL values, telomerase expression, and clinicopathologic features, although a trend towards longer telomeres was evident in telomerase-positive samples and less advanced tumors. Kaplan-Meier survival analysis showed that patients with longer telomeres in their tumors had significantly better overall survival than patients with shorter telomeres. Our research seems to provide strong evidence for an association between CLPTMIL rs402710C/T and TERT rs2736100A/C SNPs and the risk of OSSC, and suggests that higher tumor RTL values and positive hTERT expression may be applicable as early prognostic markers.
PB  - Nihon Univ, School Dentistry, Toyko
T2  - Journal of Oral Science
T1  - The role of TERT-CLPTM1L SNPs, hTERT expression and telomere length in the pathogenesis of oral squamous cell carcinoma
VL  - 58
IS  - 4
SP  - 449
EP  - 458
DO  - 10.2334/josnusd.16-0108
ER  - 
@article{
author = "Čarkić, Jelena and Nikolić, Nadja and Radojević-Škodrić, Sanja and Kuzmanović-Pfićer, Jovana and Brajović, Gavrilo and Antunović, Marija and Milašin, Jelena and Popović, Branka",
year = "2016",
abstract = "The aim of this study was to assess TERT-CLPTM1L single-nucleotide polymorphisms (SNPs) (rs402710 C/T in the CLPTM1L gene; rs2736100 A/C and rs2736098 G/A in the TERT gene) as risk factors for development of oral squamous cell carcinoma (OSCC), and to investigate the relationship between the analyzed polymorphisms, relative telomere length (RTL), telomerase expression and clinicopathologic characteristics of OSCC in a Serbian population. Paraffin-embedded tumor samples and buccal swabs from cancer-free controls were genotyped using PCR-RFLP, while tumor RTL values and telomerase expression were estimated by real-time PCR and immunohistochemistry, respectively. CLPTM1L rs402710 and TERT rs2736100 polymorphisms were associated with a significantly increased risk of OSCC, and TERT rs2736098 with a significantly decreased risk. No significant association was found between TERT-CLPTM1L polymorphisms, tumor RTL values, telomerase expression, and clinicopathologic features, although a trend towards longer telomeres was evident in telomerase-positive samples and less advanced tumors. Kaplan-Meier survival analysis showed that patients with longer telomeres in their tumors had significantly better overall survival than patients with shorter telomeres. Our research seems to provide strong evidence for an association between CLPTMIL rs402710C/T and TERT rs2736100A/C SNPs and the risk of OSSC, and suggests that higher tumor RTL values and positive hTERT expression may be applicable as early prognostic markers.",
publisher = "Nihon Univ, School Dentistry, Toyko",
journal = "Journal of Oral Science",
title = "The role of TERT-CLPTM1L SNPs, hTERT expression and telomere length in the pathogenesis of oral squamous cell carcinoma",
volume = "58",
number = "4",
pages = "449-458",
doi = "10.2334/josnusd.16-0108"
}
Čarkić, J., Nikolić, N., Radojević-Škodrić, S., Kuzmanović-Pfićer, J., Brajović, G., Antunović, M., Milašin, J.,& Popović, B.. (2016). The role of TERT-CLPTM1L SNPs, hTERT expression and telomere length in the pathogenesis of oral squamous cell carcinoma. in Journal of Oral Science
Nihon Univ, School Dentistry, Toyko., 58(4), 449-458.
https://doi.org/10.2334/josnusd.16-0108
Čarkić J, Nikolić N, Radojević-Škodrić S, Kuzmanović-Pfićer J, Brajović G, Antunović M, Milašin J, Popović B. The role of TERT-CLPTM1L SNPs, hTERT expression and telomere length in the pathogenesis of oral squamous cell carcinoma. in Journal of Oral Science. 2016;58(4):449-458.
doi:10.2334/josnusd.16-0108 .
Čarkić, Jelena, Nikolić, Nadja, Radojević-Škodrić, Sanja, Kuzmanović-Pfićer, Jovana, Brajović, Gavrilo, Antunović, Marija, Milašin, Jelena, Popović, Branka, "The role of TERT-CLPTM1L SNPs, hTERT expression and telomere length in the pathogenesis of oral squamous cell carcinoma" in Journal of Oral Science, 58, no. 4 (2016):449-458,
https://doi.org/10.2334/josnusd.16-0108 . .
14
11
12

Telomeres as contributing factors of genome instability in oral squamous cell carcinomas

Čarkić, Jelena

(Univerzitet u Beogradu, Stomatološki fakultet, 2016)

TY  - THES
AU  - Čarkić, Jelena
PY  - 2016
UR  - http://eteze.bg.ac.rs/application/showtheses?thesesId=4679
UR  - https://fedorabg.bg.ac.rs/fedora/get/o:14871/bdef:Content/download
UR  - http://vbs.rs/scripts/cobiss?command=DISPLAY&base=70036&RID=48770575
UR  - http://nardus.mpn.gov.rs/123456789/7722
UR  - https://smile.stomf.bg.ac.rs/handle/123456789/993
AB  - Introduction. High incidence and low survival rate of oral squamous cell carcinoma (OSCC) indicate the importance of finding new diagnostic and therapeutical markers for this disease. Apart from mutational analyses, in recent years greater emphasis is placed on hereditary factors as risk contributors. Generaly, oral cancerogenesis occurs as a result of progressive genome instability which is partly defined by telomere length and telomerase activity. Telomeres are nucleoprotein structures localized at the ends of the chromozomes, shortening with each cell division untill threshold lenght is reached and the cells either undergo replicative senescence and apoptosis, or achieve immortality due to the activation of telomerase. The enzyme telomerase is a ribonucleoprotein complex consisting of protein component and RNA component (TR), with a role in compensating telomere attrition. Studies implicate Single Nucleotide Polymorphisms (SNPs) of TERT-CLPTM1L 5p.15.33 gene locus as very important modulators of telomerase activity. This locus contains TERT gene encoding the catalytic subunit of telomerase, and gene for CLPTM1L protein, involved in the process of apoptosis. Cancer GWAS have shown that SNPs of 5p15.33 locus are associated with risk of many types of malignancies, including OSCC. Due to their close localization, SNPs of these genes are often in strong Linkage Disequilibrium (LD). Aim. The aim of this disertation was the assesment of TERT-CLPTM1L polymorphisms as risk factors for OSCC development, and investigation of the relationship between analyzed polymorphisms, relative telomere length (RTL), telomerase expression and clinicopathological characteristics of OSCC. Materials and Methods. Study group incuded 93 patients with OSCC and 100 cancer free controles. Genome DNA was isolated from formalin-fixed, paraffin-embedded (FFPE) tissues in OSCC group and from buccal swabs in control group. Genotyping of polymorphisms was performed using PCR-RFLP method, relative telomere length measurement by real-time PCR, and telomerase expression by immunohistochemistry...
AB  - Uvod. Oralni planocelularni karcinom (OPCK) karakteriše se visokom incidencom i niskom stopom preživljavanja, što ukazuje na neophodnost pronalaženja novih dijagnostičkih i terapijskih markera. U poslednjoj deceniji, pored analize mutacionog statusa oralnih karcinoma, sve veći značaj se pridaje i naslednoj predispoziciji kao faktoru rizika za razvoj ovog tipa maligniteta. Generalno, oralna patogeneza je posledica progresivne genomske nestabilnosti, a koja je jednim delom određena i dužinom telomera i nivoom aktivnosti telomeraze. Telomere su nukleoproteinske strukture lokalizovane na krajevima hromozoma, koje se skraćuju određenom stopom sa ćelijskim deobama, dok se ne dostigne određena kritična dužina koja ili onemogućava dalje deobe i uvodi ćeliju u replikativno starenje i apoptozu, ili dovodi do sticanja sposobnosti neograničenih deoba zahvaljujući aktivnosti telomeraze. Enzim telomeraza predstavlja ribonukleoproteinski kompleks izgrađen od proteinske subjedinice i RNK matrice (TR), čija je uloga sinteza telomernih ponovaka. Istraživanja pokazuju da značajnu ulogu u modulaciji aktivnosti telomeraze imaju polimorfizmi pojedinačnih nukleotida (SNP) u TERT-CLPTM1L genskom regionu-5p.15.33. U okviru ovog lokusa nalazi se TERT gen koji kodira katalitičku subjedinicu telomeraze i gen za CLPTM1L protein koji je uključen u proces apoptoze. Polimorfizmi ovih gena su u brojnim studijama asocijacije dovedeni u vezu sa rizikom od različitih tipova kancera, uključujući i OPCK. Takođe, s obzirom na blisku lokalizaciju često pokazuju visok nivo gametske neravnoteže vezanosti (LD). Cilj. Cilj ove doktorske disertacije bio je ispitivanje asocijacije TERT-CLPTM1L polimorfizama sa rizikom od OPCK, kao i odnosa između analiziranih polimorfizama, relativne dužine telomera, ekspresije telomeraze i kliničko-patoloških karakteristika OPCK. Materijal i metode. Studijska grupa obuhvatila je 93 pacijenta sa dijagnostikovanim OPCK i 100 zdravih osoba...
PB  - Univerzitet u Beogradu, Stomatološki fakultet
T1  - Telomeres as contributing factors of genome instability in oral squamous cell carcinomas
T1  - Telomere kao faktor genomske nestabilnosti kod oralnih planocelularnih karcinoma
UR  - https://hdl.handle.net/21.15107/rcub_nardus_7722
ER  - 
@phdthesis{
author = "Čarkić, Jelena",
year = "2016",
abstract = "Introduction. High incidence and low survival rate of oral squamous cell carcinoma (OSCC) indicate the importance of finding new diagnostic and therapeutical markers for this disease. Apart from mutational analyses, in recent years greater emphasis is placed on hereditary factors as risk contributors. Generaly, oral cancerogenesis occurs as a result of progressive genome instability which is partly defined by telomere length and telomerase activity. Telomeres are nucleoprotein structures localized at the ends of the chromozomes, shortening with each cell division untill threshold lenght is reached and the cells either undergo replicative senescence and apoptosis, or achieve immortality due to the activation of telomerase. The enzyme telomerase is a ribonucleoprotein complex consisting of protein component and RNA component (TR), with a role in compensating telomere attrition. Studies implicate Single Nucleotide Polymorphisms (SNPs) of TERT-CLPTM1L 5p.15.33 gene locus as very important modulators of telomerase activity. This locus contains TERT gene encoding the catalytic subunit of telomerase, and gene for CLPTM1L protein, involved in the process of apoptosis. Cancer GWAS have shown that SNPs of 5p15.33 locus are associated with risk of many types of malignancies, including OSCC. Due to their close localization, SNPs of these genes are often in strong Linkage Disequilibrium (LD). Aim. The aim of this disertation was the assesment of TERT-CLPTM1L polymorphisms as risk factors for OSCC development, and investigation of the relationship between analyzed polymorphisms, relative telomere length (RTL), telomerase expression and clinicopathological characteristics of OSCC. Materials and Methods. Study group incuded 93 patients with OSCC and 100 cancer free controles. Genome DNA was isolated from formalin-fixed, paraffin-embedded (FFPE) tissues in OSCC group and from buccal swabs in control group. Genotyping of polymorphisms was performed using PCR-RFLP method, relative telomere length measurement by real-time PCR, and telomerase expression by immunohistochemistry..., Uvod. Oralni planocelularni karcinom (OPCK) karakteriše se visokom incidencom i niskom stopom preživljavanja, što ukazuje na neophodnost pronalaženja novih dijagnostičkih i terapijskih markera. U poslednjoj deceniji, pored analize mutacionog statusa oralnih karcinoma, sve veći značaj se pridaje i naslednoj predispoziciji kao faktoru rizika za razvoj ovog tipa maligniteta. Generalno, oralna patogeneza je posledica progresivne genomske nestabilnosti, a koja je jednim delom određena i dužinom telomera i nivoom aktivnosti telomeraze. Telomere su nukleoproteinske strukture lokalizovane na krajevima hromozoma, koje se skraćuju određenom stopom sa ćelijskim deobama, dok se ne dostigne određena kritična dužina koja ili onemogućava dalje deobe i uvodi ćeliju u replikativno starenje i apoptozu, ili dovodi do sticanja sposobnosti neograničenih deoba zahvaljujući aktivnosti telomeraze. Enzim telomeraza predstavlja ribonukleoproteinski kompleks izgrađen od proteinske subjedinice i RNK matrice (TR), čija je uloga sinteza telomernih ponovaka. Istraživanja pokazuju da značajnu ulogu u modulaciji aktivnosti telomeraze imaju polimorfizmi pojedinačnih nukleotida (SNP) u TERT-CLPTM1L genskom regionu-5p.15.33. U okviru ovog lokusa nalazi se TERT gen koji kodira katalitičku subjedinicu telomeraze i gen za CLPTM1L protein koji je uključen u proces apoptoze. Polimorfizmi ovih gena su u brojnim studijama asocijacije dovedeni u vezu sa rizikom od različitih tipova kancera, uključujući i OPCK. Takođe, s obzirom na blisku lokalizaciju često pokazuju visok nivo gametske neravnoteže vezanosti (LD). Cilj. Cilj ove doktorske disertacije bio je ispitivanje asocijacije TERT-CLPTM1L polimorfizama sa rizikom od OPCK, kao i odnosa između analiziranih polimorfizama, relativne dužine telomera, ekspresije telomeraze i kliničko-patoloških karakteristika OPCK. Materijal i metode. Studijska grupa obuhvatila je 93 pacijenta sa dijagnostikovanim OPCK i 100 zdravih osoba...",
publisher = "Univerzitet u Beogradu, Stomatološki fakultet",
title = "Telomeres as contributing factors of genome instability in oral squamous cell carcinomas, Telomere kao faktor genomske nestabilnosti kod oralnih planocelularnih karcinoma",
url = "https://hdl.handle.net/21.15107/rcub_nardus_7722"
}
Čarkić, J.. (2016). Telomeres as contributing factors of genome instability in oral squamous cell carcinomas. 
Univerzitet u Beogradu, Stomatološki fakultet..
https://hdl.handle.net/21.15107/rcub_nardus_7722
Čarkić J. Telomeres as contributing factors of genome instability in oral squamous cell carcinomas. 2016;.
https://hdl.handle.net/21.15107/rcub_nardus_7722 .
Čarkić, Jelena, "Telomeres as contributing factors of genome instability in oral squamous cell carcinomas" (2016),
https://hdl.handle.net/21.15107/rcub_nardus_7722 .

High frequency of p16 and p14 promoter hypermethylation and marked telomere instability in salivary gland tumors

Nikolić, Nadja; Aničić, Boban; Čarkić, Jelena; Simonović, Jelena; Toljić, Boško; Tanić, Nasta; Tepavčević, Zvezdana; Vukadinović, Miroslav; Konstantinović, Vitomir; Milašin, Jelena

(Pergamon-Elsevier Science Ltd, Oxford, 2015)

TY  - JOUR
AU  - Nikolić, Nadja
AU  - Aničić, Boban
AU  - Čarkić, Jelena
AU  - Simonović, Jelena
AU  - Toljić, Boško
AU  - Tanić, Nasta
AU  - Tepavčević, Zvezdana
AU  - Vukadinović, Miroslav
AU  - Konstantinović, Vitomir
AU  - Milašin, Jelena
PY  - 2015
UR  - https://smile.stomf.bg.ac.rs/handle/123456789/2019
AB  - Objectives: to investigate p16(INK4a) and p14(ARF) tumor suppressor gene methylation status, determine telomere length and assess the importance of these epigenetic and genetic parameters in the development of pleomorphic adenoma and carcinoma ex pleomorphic adenoma of the parotid salivary glands. Materials and Methods: Genomic DNA from paraffin-embedded samples of 50 pleomorphic adenomas and 10 carcinomas ex pleomorphic adenoma was subjected to methylation specific polymerase chain reaction for hypermethylation analyses and real time polymerase chain reaction for the relative telomere length calculations. Results: Promoter hypermethylation of the two genes was a very frequent event in both neoplasms between 60% and 90% of samples were hypermethylated - but without significant difference between the groups. The mean relative telomere length in the pleomorphic adenoma group was significantly increased in comparison to the control group (P = 0.00), and significantly decreased in comparison to the carcinoma group (P = 0.05). Telomeres were also longer in myxoid and cellular histological subtypes of adenomas than in the classic type (P = 0.044 and P = 0.018, respectively). Longer telomeres were more frequent in tumors with hypermethylated p14(ARF) alleles (P = 0.013). Conclusion: Promoter hypermethylations seems to be an important mechanism of p16(INK4a) and Pl4(ARF) inactivation in parotid gland tumors. Telomeric lengthening appears to be involved in the pathogenesis of both benign and malignant tumors of the parotid glands.
PB  - Pergamon-Elsevier Science Ltd, Oxford
T2  - Archives of Oral Biology
T1  - High frequency of p16 and p14 promoter hypermethylation and marked telomere instability in salivary gland tumors
VL  - 60
IS  - 11
SP  - 1662
EP  - 1666
DO  - 10.1016/j.archoralbio.2015.08.011
ER  - 
@article{
author = "Nikolić, Nadja and Aničić, Boban and Čarkić, Jelena and Simonović, Jelena and Toljić, Boško and Tanić, Nasta and Tepavčević, Zvezdana and Vukadinović, Miroslav and Konstantinović, Vitomir and Milašin, Jelena",
year = "2015",
abstract = "Objectives: to investigate p16(INK4a) and p14(ARF) tumor suppressor gene methylation status, determine telomere length and assess the importance of these epigenetic and genetic parameters in the development of pleomorphic adenoma and carcinoma ex pleomorphic adenoma of the parotid salivary glands. Materials and Methods: Genomic DNA from paraffin-embedded samples of 50 pleomorphic adenomas and 10 carcinomas ex pleomorphic adenoma was subjected to methylation specific polymerase chain reaction for hypermethylation analyses and real time polymerase chain reaction for the relative telomere length calculations. Results: Promoter hypermethylation of the two genes was a very frequent event in both neoplasms between 60% and 90% of samples were hypermethylated - but without significant difference between the groups. The mean relative telomere length in the pleomorphic adenoma group was significantly increased in comparison to the control group (P = 0.00), and significantly decreased in comparison to the carcinoma group (P = 0.05). Telomeres were also longer in myxoid and cellular histological subtypes of adenomas than in the classic type (P = 0.044 and P = 0.018, respectively). Longer telomeres were more frequent in tumors with hypermethylated p14(ARF) alleles (P = 0.013). Conclusion: Promoter hypermethylations seems to be an important mechanism of p16(INK4a) and Pl4(ARF) inactivation in parotid gland tumors. Telomeric lengthening appears to be involved in the pathogenesis of both benign and malignant tumors of the parotid glands.",
publisher = "Pergamon-Elsevier Science Ltd, Oxford",
journal = "Archives of Oral Biology",
title = "High frequency of p16 and p14 promoter hypermethylation and marked telomere instability in salivary gland tumors",
volume = "60",
number = "11",
pages = "1662-1666",
doi = "10.1016/j.archoralbio.2015.08.011"
}
Nikolić, N., Aničić, B., Čarkić, J., Simonović, J., Toljić, B., Tanić, N., Tepavčević, Z., Vukadinović, M., Konstantinović, V.,& Milašin, J.. (2015). High frequency of p16 and p14 promoter hypermethylation and marked telomere instability in salivary gland tumors. in Archives of Oral Biology
Pergamon-Elsevier Science Ltd, Oxford., 60(11), 1662-1666.
https://doi.org/10.1016/j.archoralbio.2015.08.011
Nikolić N, Aničić B, Čarkić J, Simonović J, Toljić B, Tanić N, Tepavčević Z, Vukadinović M, Konstantinović V, Milašin J. High frequency of p16 and p14 promoter hypermethylation and marked telomere instability in salivary gland tumors. in Archives of Oral Biology. 2015;60(11):1662-1666.
doi:10.1016/j.archoralbio.2015.08.011 .
Nikolić, Nadja, Aničić, Boban, Čarkić, Jelena, Simonović, Jelena, Toljić, Boško, Tanić, Nasta, Tepavčević, Zvezdana, Vukadinović, Miroslav, Konstantinović, Vitomir, Milašin, Jelena, "High frequency of p16 and p14 promoter hypermethylation and marked telomere instability in salivary gland tumors" in Archives of Oral Biology, 60, no. 11 (2015):1662-1666,
https://doi.org/10.1016/j.archoralbio.2015.08.011 . .
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Changes in subgingival microflora after placement and removal of fixed orthodontic appliances

Živković-Sandić, Marija; Popović, Branka; Čarkić, Jelena; Nikolić, Nadja; Glišić, Branislav

(Srpsko lekarsko društvo, Beograd, 2014)

TY  - JOUR
AU  - Živković-Sandić, Marija
AU  - Popović, Branka
AU  - Čarkić, Jelena
AU  - Nikolić, Nadja
AU  - Glišić, Branislav
PY  - 2014
UR  - https://smile.stomf.bg.ac.rs/handle/123456789/1916
AB  - Introduction The placement of fixed orthodontic appliances may lead to increased plaque accumulation and changes in subgingival microflora. Objective The aim of this study was to examine the changes in frequency of subgingival microflora that occur after placement and removal of fixed orthodontic appliance using polymerase chain reaction (PCR). Methods This study included 33 orthodontic patients, who were divided into two groups. Subgingival plaque samples were collected from the right upper incisor (U1) and right upper first molar (U6). In group A, the samples were taken three times: before placement appliance (T1), after one month (T2), and after 3 months (T3). In group B the samples were also taken three times: before appliance removal (T1), after one month (T2), and after three months (T3). PCR method was used to determine the presence of P. gingivalis, A. actinomycetemcomitans, T. forsythia, and P. intermedia. Results In group A the frequency of P. gingivalis showed statistically significant decrease at U1 (p=0.049) and U6 (p=0.008), from T1 to T2, and at U1 (p=0.048) from T1 to T3. In group B only the frequency of T. forsythia showed a statistically significant decrease, at U6 (T1 vs. T2, p=0.004; T1 vs. T3, p=0.0003). Regarding other analyzed bacteria, changes in the presence were noticed but no statistical significance was found. Conclusion Placement of fixed appliances may have an impact on subgingival microflora, but in the first months after the placement and removal of the appliance changes were not significant, probably due to good oral hygiene.
AB  - Uvod Postavka fiksnih ortodontskih aparata može dovesti do povećanog nagomilavanja plaka i promena u subgingivalnoj mikroflori. Cilj rada Cilj ovog rada bio je da se ispitaju promene subgingivalne mikroflore nakon postavke i uklanjanja fiksnih ortodontskih aparata primenom reakcije lančanog umnožavanja molekula DNK (engl. polymerase chain reaction - PCR). Metode rada Studija je obuhvatila 33 pacijenta koja su svrstana u dve grupe (A i B). Uzorci plaka su uzeti iz subgingivalnog prostora desnog gornjeg centralnog sekutića (U1) i desnog gornjeg prvog kutnjaka (U6). U grupi A uzorci su uzimani pre postavke fiksnog aparata (T1), mesec dana posle postavke (T2) i tri meseca od postavke (T3). U grupi B uzorci su uzimani pre uklanjanja aparata (T1), mesec dana posle uklanjanja (T2) i tri meseca nakon uklanjanja (T3). Primenom metode PCR analizirano je postojanje mikroorganizama: Porphyromonas gingivalis, Aggregatibacter actinomycetemcomitans, Tannerella forsythia i Prevotella intermedia. Rezultati U grupi A učestalost P. gingivalis pokazala je statistički značajno smanjenje na oba zuba (U1: p=0,049; U6: p=0,008) u vremenskom intervalu od T1 do T2. Uočeno je i statistički značajno smanjenje zastupljenosti ove bakterije na zubu U1 u intervalu od T1 do T3 (p=0,048). U grupi B samo se učestalost T. forsythia statistički značajno smanjila na zubu U6 u intervalu od T1 do T2 (p=0,004) i od T1 do T3 (p=0,0003). Učestalosti ostalih bakterija u obe grupe ispitanika nisu pokazale statistički značajne promene. Zaključak Postavka fiksnih aparata može da utiče na sastav subgingivalne mikroflore, ali u prvim mesecima nakon postavke i uklanjanja aparata uglavnom nisu uočene statistički značajne promene, verovatno zbog dobre oralne higijene.
PB  - Srpsko lekarsko društvo, Beograd
T2  - Srpski arhiv za celokupno lekarstvo
T1  - Changes in subgingival microflora after placement and removal of fixed orthodontic appliances
T1  - Promene subgingivalne mikroflore nakon postavke i uklanjanja fiksnih ortodontskih aparata
VL  - 142
IS  - 5-6
SP  - 301
EP  - 305
DO  - 10.2298/SARH1406301Z
ER  - 
@article{
author = "Živković-Sandić, Marija and Popović, Branka and Čarkić, Jelena and Nikolić, Nadja and Glišić, Branislav",
year = "2014",
abstract = "Introduction The placement of fixed orthodontic appliances may lead to increased plaque accumulation and changes in subgingival microflora. Objective The aim of this study was to examine the changes in frequency of subgingival microflora that occur after placement and removal of fixed orthodontic appliance using polymerase chain reaction (PCR). Methods This study included 33 orthodontic patients, who were divided into two groups. Subgingival plaque samples were collected from the right upper incisor (U1) and right upper first molar (U6). In group A, the samples were taken three times: before placement appliance (T1), after one month (T2), and after 3 months (T3). In group B the samples were also taken three times: before appliance removal (T1), after one month (T2), and after three months (T3). PCR method was used to determine the presence of P. gingivalis, A. actinomycetemcomitans, T. forsythia, and P. intermedia. Results In group A the frequency of P. gingivalis showed statistically significant decrease at U1 (p=0.049) and U6 (p=0.008), from T1 to T2, and at U1 (p=0.048) from T1 to T3. In group B only the frequency of T. forsythia showed a statistically significant decrease, at U6 (T1 vs. T2, p=0.004; T1 vs. T3, p=0.0003). Regarding other analyzed bacteria, changes in the presence were noticed but no statistical significance was found. Conclusion Placement of fixed appliances may have an impact on subgingival microflora, but in the first months after the placement and removal of the appliance changes were not significant, probably due to good oral hygiene., Uvod Postavka fiksnih ortodontskih aparata može dovesti do povećanog nagomilavanja plaka i promena u subgingivalnoj mikroflori. Cilj rada Cilj ovog rada bio je da se ispitaju promene subgingivalne mikroflore nakon postavke i uklanjanja fiksnih ortodontskih aparata primenom reakcije lančanog umnožavanja molekula DNK (engl. polymerase chain reaction - PCR). Metode rada Studija je obuhvatila 33 pacijenta koja su svrstana u dve grupe (A i B). Uzorci plaka su uzeti iz subgingivalnog prostora desnog gornjeg centralnog sekutića (U1) i desnog gornjeg prvog kutnjaka (U6). U grupi A uzorci su uzimani pre postavke fiksnog aparata (T1), mesec dana posle postavke (T2) i tri meseca od postavke (T3). U grupi B uzorci su uzimani pre uklanjanja aparata (T1), mesec dana posle uklanjanja (T2) i tri meseca nakon uklanjanja (T3). Primenom metode PCR analizirano je postojanje mikroorganizama: Porphyromonas gingivalis, Aggregatibacter actinomycetemcomitans, Tannerella forsythia i Prevotella intermedia. Rezultati U grupi A učestalost P. gingivalis pokazala je statistički značajno smanjenje na oba zuba (U1: p=0,049; U6: p=0,008) u vremenskom intervalu od T1 do T2. Uočeno je i statistički značajno smanjenje zastupljenosti ove bakterije na zubu U1 u intervalu od T1 do T3 (p=0,048). U grupi B samo se učestalost T. forsythia statistički značajno smanjila na zubu U6 u intervalu od T1 do T2 (p=0,004) i od T1 do T3 (p=0,0003). Učestalosti ostalih bakterija u obe grupe ispitanika nisu pokazale statistički značajne promene. Zaključak Postavka fiksnih aparata može da utiče na sastav subgingivalne mikroflore, ali u prvim mesecima nakon postavke i uklanjanja aparata uglavnom nisu uočene statistički značajne promene, verovatno zbog dobre oralne higijene.",
publisher = "Srpsko lekarsko društvo, Beograd",
journal = "Srpski arhiv za celokupno lekarstvo",
title = "Changes in subgingival microflora after placement and removal of fixed orthodontic appliances, Promene subgingivalne mikroflore nakon postavke i uklanjanja fiksnih ortodontskih aparata",
volume = "142",
number = "5-6",
pages = "301-305",
doi = "10.2298/SARH1406301Z"
}
Živković-Sandić, M., Popović, B., Čarkić, J., Nikolić, N.,& Glišić, B.. (2014). Changes in subgingival microflora after placement and removal of fixed orthodontic appliances. in Srpski arhiv za celokupno lekarstvo
Srpsko lekarsko društvo, Beograd., 142(5-6), 301-305.
https://doi.org/10.2298/SARH1406301Z
Živković-Sandić M, Popović B, Čarkić J, Nikolić N, Glišić B. Changes in subgingival microflora after placement and removal of fixed orthodontic appliances. in Srpski arhiv za celokupno lekarstvo. 2014;142(5-6):301-305.
doi:10.2298/SARH1406301Z .
Živković-Sandić, Marija, Popović, Branka, Čarkić, Jelena, Nikolić, Nadja, Glišić, Branislav, "Changes in subgingival microflora after placement and removal of fixed orthodontic appliances" in Srpski arhiv za celokupno lekarstvo, 142, no. 5-6 (2014):301-305,
https://doi.org/10.2298/SARH1406301Z . .
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Somatic mutation and polymorphism analysis in pleomorphic adenomas of the salivary glands

Nikolić, Nadja; Aničić, Boban; Tepavčević, Zvezdana; Jezdić, Zoran; Čarkić, Jelena; Toljić, Boško; Dedović-Tanić, Nasta; Konstantinović, Vitomir; Vukadinović, Miroslav; Milašin, Jelena

(Društvo medicinskih biohemičara Srbije, Beograd i Versita, 2013)

TY  - JOUR
AU  - Nikolić, Nadja
AU  - Aničić, Boban
AU  - Tepavčević, Zvezdana
AU  - Jezdić, Zoran
AU  - Čarkić, Jelena
AU  - Toljić, Boško
AU  - Dedović-Tanić, Nasta
AU  - Konstantinović, Vitomir
AU  - Vukadinović, Miroslav
AU  - Milašin, Jelena
PY  - 2013
UR  - https://smile.stomf.bg.ac.rs/handle/123456789/1779
AB  - Background: Genetic studies of salivary gland neoplasms were mainly focused on chromosomal changes, and some specific patterns of chromosome translocations have been described. However, molecular alterations, in particular the role of HER-2/H-ras/c-myc signalling cascade in pleomorphic adenoma pathogenesis (PA), are less well characterized. In addition, data on single nucleotide polymorphisms (SNPs) as potential susceptibility factors for PA development are also quite scarce. Methods: Mutational analyses were performed by means of real-time PCR (HER-2 and c-myc amplification analysis), PCR-SSCP and sequencing (H-ras point mutation detection). Polymorphisms analysis was performed by PCR-RFLP (survivin and MMP-9 genes). Results: Amplification of HER-2 and c-myc has been found in 13% and 9% of PA cases respectively. Point mutations in H-ras codons 12/13 have been detected in 17% of PAs. No correlation could be established between these alterations and clinical characteristics of PAs, whereas they might play a role in a subset of malignant salivary gland tumours. As for survivin -31 G/C polymorphism, C allele carriers had a 4-fold decrease of the risk of developing PA (p=0.05). Carriers of the variant allele T of the -1562C/T SNP in MMP-9 gene had a 4-fold increase of the risk of developing PA (p lt 0.001). Conclusions: A longer follow-up of PA patients harbouring mutations could uncover a prognostic role of HER-2 and c-myc amplification as predictors of adenoma transformation into carcinoma. Both survivin and MMP-9 promoter polymorphisms represent susceptibility factors for the development of PAs in the Serbian population.
AB  - Uvod: U ispitivanjima mehanizama nastanka tumora pljuvačnih žlezda uglavnom dominiraju citogenetičke studije, pa su tako detektovane i opisane različite hromozomske translokacije sa specifičnim obrascem javljanja. Međutim, molekularne promene u ovim tumorima i dalje su relativno slabo poznate, a pogotovo je malo podataka o potencijalnom značaju signalnog puta HER-2/H-ras/c-myc u razvoju i progresiji pleomorfnih adenoma (PA). Takođe, retki su i podaci 0 polimorfizmima pojedinačnog nukleotida (SNP) kao faktora predispozicije za nastanak PA. Metode: Analize somatskih mutacija urađene su metodama real-time PCR (analiza amplifikacije HER-2 i c-myc), PCR-SSCP i sekvenciranja (detekcija tačkastih mutacija u H-ras). Ana I iza polimorfizama pojedinačnih nukleotida (SNP) vršena je prime- nom metode PCR-RFLP (u genima za survivin i MMP-9). Rezultati: Amplifikacija gena HER-2 detektovana je u 13%, c-myc u 9% a tačkaste mutacije u kodonima 12/13 H-ras gena u 17% uzoraka. Nije ustanovljena veza između ovih promena i kliničkih odlika adenoma. Na malom uzorku karcinoma, pokazano je da je amplifikacija HER-2 povezana sa recidivima tumora. Nosioci C alela u -31G/C SNP gena za survivin imaju četiri puta manji rizik od nastanka PA (p=0,05), dok nosioci varijantnog alela T kod -1562 C/T SNP u MMP-9 genu imaju četiri puta veći rizik da obole od PA u odnosu na kontrolu (p lt 0,001). Zaključak: Dužim praćenjem pacijenata sa PA mogla bi da se ustanovi prognostička uloga HER-2 i c-myc amplifikacija kao indikatora za transformaciju adenoma u karcinom. Polimorfizmi u promotorima gena za survivin i MMP-9 predstavljaju modulatore rizika za razvoj pleomorfnih adenoma u srpskoj populaciji.
PB  - Društvo medicinskih biohemičara Srbije, Beograd i Versita
T2  - Journal of Medical Biochemistry
T1  - Somatic mutation and polymorphism analysis in pleomorphic adenomas of the salivary glands
T1  - Somatske mutacije i analiza polimorfizama u pleomorfnim adenomima pljuvačnih žlezda
VL  - 32
IS  - 4
SP  - 354
EP  - 360
DO  - 10.2478/jomb-2013-0048
ER  - 
@article{
author = "Nikolić, Nadja and Aničić, Boban and Tepavčević, Zvezdana and Jezdić, Zoran and Čarkić, Jelena and Toljić, Boško and Dedović-Tanić, Nasta and Konstantinović, Vitomir and Vukadinović, Miroslav and Milašin, Jelena",
year = "2013",
abstract = "Background: Genetic studies of salivary gland neoplasms were mainly focused on chromosomal changes, and some specific patterns of chromosome translocations have been described. However, molecular alterations, in particular the role of HER-2/H-ras/c-myc signalling cascade in pleomorphic adenoma pathogenesis (PA), are less well characterized. In addition, data on single nucleotide polymorphisms (SNPs) as potential susceptibility factors for PA development are also quite scarce. Methods: Mutational analyses were performed by means of real-time PCR (HER-2 and c-myc amplification analysis), PCR-SSCP and sequencing (H-ras point mutation detection). Polymorphisms analysis was performed by PCR-RFLP (survivin and MMP-9 genes). Results: Amplification of HER-2 and c-myc has been found in 13% and 9% of PA cases respectively. Point mutations in H-ras codons 12/13 have been detected in 17% of PAs. No correlation could be established between these alterations and clinical characteristics of PAs, whereas they might play a role in a subset of malignant salivary gland tumours. As for survivin -31 G/C polymorphism, C allele carriers had a 4-fold decrease of the risk of developing PA (p=0.05). Carriers of the variant allele T of the -1562C/T SNP in MMP-9 gene had a 4-fold increase of the risk of developing PA (p lt 0.001). Conclusions: A longer follow-up of PA patients harbouring mutations could uncover a prognostic role of HER-2 and c-myc amplification as predictors of adenoma transformation into carcinoma. Both survivin and MMP-9 promoter polymorphisms represent susceptibility factors for the development of PAs in the Serbian population., Uvod: U ispitivanjima mehanizama nastanka tumora pljuvačnih žlezda uglavnom dominiraju citogenetičke studije, pa su tako detektovane i opisane različite hromozomske translokacije sa specifičnim obrascem javljanja. Međutim, molekularne promene u ovim tumorima i dalje su relativno slabo poznate, a pogotovo je malo podataka o potencijalnom značaju signalnog puta HER-2/H-ras/c-myc u razvoju i progresiji pleomorfnih adenoma (PA). Takođe, retki su i podaci 0 polimorfizmima pojedinačnog nukleotida (SNP) kao faktora predispozicije za nastanak PA. Metode: Analize somatskih mutacija urađene su metodama real-time PCR (analiza amplifikacije HER-2 i c-myc), PCR-SSCP i sekvenciranja (detekcija tačkastih mutacija u H-ras). Ana I iza polimorfizama pojedinačnih nukleotida (SNP) vršena je prime- nom metode PCR-RFLP (u genima za survivin i MMP-9). Rezultati: Amplifikacija gena HER-2 detektovana je u 13%, c-myc u 9% a tačkaste mutacije u kodonima 12/13 H-ras gena u 17% uzoraka. Nije ustanovljena veza između ovih promena i kliničkih odlika adenoma. Na malom uzorku karcinoma, pokazano je da je amplifikacija HER-2 povezana sa recidivima tumora. Nosioci C alela u -31G/C SNP gena za survivin imaju četiri puta manji rizik od nastanka PA (p=0,05), dok nosioci varijantnog alela T kod -1562 C/T SNP u MMP-9 genu imaju četiri puta veći rizik da obole od PA u odnosu na kontrolu (p lt 0,001). Zaključak: Dužim praćenjem pacijenata sa PA mogla bi da se ustanovi prognostička uloga HER-2 i c-myc amplifikacija kao indikatora za transformaciju adenoma u karcinom. Polimorfizmi u promotorima gena za survivin i MMP-9 predstavljaju modulatore rizika za razvoj pleomorfnih adenoma u srpskoj populaciji.",
publisher = "Društvo medicinskih biohemičara Srbije, Beograd i Versita",
journal = "Journal of Medical Biochemistry",
title = "Somatic mutation and polymorphism analysis in pleomorphic adenomas of the salivary glands, Somatske mutacije i analiza polimorfizama u pleomorfnim adenomima pljuvačnih žlezda",
volume = "32",
number = "4",
pages = "354-360",
doi = "10.2478/jomb-2013-0048"
}
Nikolić, N., Aničić, B., Tepavčević, Z., Jezdić, Z., Čarkić, J., Toljić, B., Dedović-Tanić, N., Konstantinović, V., Vukadinović, M.,& Milašin, J.. (2013). Somatic mutation and polymorphism analysis in pleomorphic adenomas of the salivary glands. in Journal of Medical Biochemistry
Društvo medicinskih biohemičara Srbije, Beograd i Versita., 32(4), 354-360.
https://doi.org/10.2478/jomb-2013-0048
Nikolić N, Aničić B, Tepavčević Z, Jezdić Z, Čarkić J, Toljić B, Dedović-Tanić N, Konstantinović V, Vukadinović M, Milašin J. Somatic mutation and polymorphism analysis in pleomorphic adenomas of the salivary glands. in Journal of Medical Biochemistry. 2013;32(4):354-360.
doi:10.2478/jomb-2013-0048 .
Nikolić, Nadja, Aničić, Boban, Tepavčević, Zvezdana, Jezdić, Zoran, Čarkić, Jelena, Toljić, Boško, Dedović-Tanić, Nasta, Konstantinović, Vitomir, Vukadinović, Miroslav, Milašin, Jelena, "Somatic mutation and polymorphism analysis in pleomorphic adenomas of the salivary glands" in Journal of Medical Biochemistry, 32, no. 4 (2013):354-360,
https://doi.org/10.2478/jomb-2013-0048 . .
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Analysis of polymorphism in the survivin gene promoter as a potential risk factor for head and neck cancers development

Kostić, Marija; Nikolić, Nadja; Ilić, Branislav; Čarkić, Jelena; Milenković, Sanja; Vukadinović, Miroslav

(Srpsko lekarsko društvo, Beograd, 2013)

TY  - JOUR
AU  - Kostić, Marija
AU  - Nikolić, Nadja
AU  - Ilić, Branislav
AU  - Čarkić, Jelena
AU  - Milenković, Sanja
AU  - Vukadinović, Miroslav
PY  - 2013
UR  - https://smile.stomf.bg.ac.rs/handle/123456789/1797
AB  - Introduction. Association studies have shown that gene polymorphisms in various classes of genes can modulate cancer risk. The -31G/C polymorphism in the promoter of survivin gene, affects the expression of the anti-apoptotic protein survivin which in turn may predispose an individual to some types of cancer. Objective. The aim of the study was to determine whether the survivin promoter -31G/C polymorphism could be a susceptibility factor for squamous cell carcinoma (SCC) of the oral cavity and basal cell carcinoma (BCC) of the skin. Methods. The DNA obtained from 88 patients with SCC, 60 patients with BCC and 111 healthy individuals was subjected to polymerase chain reaction-restriction fragment length polymorphism analysis (PCR- RFLP) in order to determine genotype and allele frequencies in patients and control groups. Logistic regression was used for cancer risk assessment. Results. The following distribution of genotypes was obtained: CC genotype 15% in the SCC group, 13% in the BCC group and 12% in controls; CG genotype 41% in SCCs, 35% in BCCs, 48% in controls; GG genotype 44% in SCCs, 52% in BCCs and 40% in controls. Allelic frequencies were as follows: G allele 0.65 in SCCs, 0.69 in BCCs and 0.64 in the control group; C allele 0.35 in SCCs, 0.31 in BCCs and 0.36 in the control group. There was no statistically significant difference in allele or genotype frequencies between the patients and controls (p>0.05). Conclusion. In Serbian population, -31G/C polymorphism in the promoter of the survivin gene cannot be considered as a risk factor for oral squamous cell carcinoma and skin basal cell carcinoma.
AB  - Uvod. Dokazano je da polimorfizmi u različitim klasama gena mogu da povećaju rizik za razvoj malignih tumora, između ostalih i skvamocelularnog karcinoma (SCC) usne duplje i bazocelularnog karcinoma (BCC) kože. Survivin je bifunkcionalni protein-inhibitor apoptoze i regulator ćelijskog ciklusa. Otkriveno je više funkcionalnih polimorfizama u ovom genu, a jedan od ključnih je polimorfizam G/C na poziciji -31, za koji je pokazano da je modulator ekspresije survivina i da doprinosi povećanju rizika od obolevanja od različitih tipova tumora. Cilj rada. Cilj rada je bio da se analizira učestalost genotipova i alela za -31G/C polimorfizam gena za survivin kod osoba obolelih od SCC i BCC i kod zdravih ispitanika. Logističkom regresionom analizom ispitana je povezanost ovog polimorfizma i rizika za nastanak SCC i BCC. Metode rada. Učestalosti alela i genotipova kod 88 osoba obolelih od SCC, 60 osoba obolelih od BCC i 111 zdravih ispitanika određene su lančanom reakcijom polimeraze i restrikcionom analizom. Logističkom regresijom procenjena je sklonost ka razvoju SCC i BCC. Rezultati. Genotip CC je utvrđen kod 15% ispitanika sa SCC, 13% sa BCC i 12% zdavih osoba. Genotip CG je zabeležen kod 41% ispitanika sa SCC, 35% sa BCC i 48% zdravih osoba. Genotip GG je otkriven kod 44% osoba sa SCC, 52% sa BCC i 40% zdravih ispitanika. Učestalost G-alela bila je sledeća: 0,65 kod ispitanika sa SCC, 0,69 kod ispitanika sa BCC i 0,64 u grupi zdravih osoba. Učestalost C-alela bila je: 0,35 kod ispitanika sa SCC, 0,31 kod ispitanika sa BCC i 0,36 u grupi zdravih osoba. Nije bilo statistički značajne razlike u raspodeli genotipova i alela između bolesnika s karcinomima i zdravih ispitanika (p>0,05). Zaključak. Polimorfizam -31G/C u promotoru gena za survivin ne može se smatrati faktorom rizika za razvoj ova dva tipa tumora.
PB  - Srpsko lekarsko društvo, Beograd
T2  - Srpski arhiv za celokupno lekarstvo
T1  - Analysis of polymorphism in the survivin gene promoter as a potential risk factor for head and neck cancers development
T1  - Analiza polimorfizma u promotoru gena za survivin kao mogućeg faktora rizika za nastanak tumora glave i vrata
VL  - 141
IS  - 5-6
SP  - 304
EP  - 307
DO  - 10.2298/SARH1306304K
ER  - 
@article{
author = "Kostić, Marija and Nikolić, Nadja and Ilić, Branislav and Čarkić, Jelena and Milenković, Sanja and Vukadinović, Miroslav",
year = "2013",
abstract = "Introduction. Association studies have shown that gene polymorphisms in various classes of genes can modulate cancer risk. The -31G/C polymorphism in the promoter of survivin gene, affects the expression of the anti-apoptotic protein survivin which in turn may predispose an individual to some types of cancer. Objective. The aim of the study was to determine whether the survivin promoter -31G/C polymorphism could be a susceptibility factor for squamous cell carcinoma (SCC) of the oral cavity and basal cell carcinoma (BCC) of the skin. Methods. The DNA obtained from 88 patients with SCC, 60 patients with BCC and 111 healthy individuals was subjected to polymerase chain reaction-restriction fragment length polymorphism analysis (PCR- RFLP) in order to determine genotype and allele frequencies in patients and control groups. Logistic regression was used for cancer risk assessment. Results. The following distribution of genotypes was obtained: CC genotype 15% in the SCC group, 13% in the BCC group and 12% in controls; CG genotype 41% in SCCs, 35% in BCCs, 48% in controls; GG genotype 44% in SCCs, 52% in BCCs and 40% in controls. Allelic frequencies were as follows: G allele 0.65 in SCCs, 0.69 in BCCs and 0.64 in the control group; C allele 0.35 in SCCs, 0.31 in BCCs and 0.36 in the control group. There was no statistically significant difference in allele or genotype frequencies between the patients and controls (p>0.05). Conclusion. In Serbian population, -31G/C polymorphism in the promoter of the survivin gene cannot be considered as a risk factor for oral squamous cell carcinoma and skin basal cell carcinoma., Uvod. Dokazano je da polimorfizmi u različitim klasama gena mogu da povećaju rizik za razvoj malignih tumora, između ostalih i skvamocelularnog karcinoma (SCC) usne duplje i bazocelularnog karcinoma (BCC) kože. Survivin je bifunkcionalni protein-inhibitor apoptoze i regulator ćelijskog ciklusa. Otkriveno je više funkcionalnih polimorfizama u ovom genu, a jedan od ključnih je polimorfizam G/C na poziciji -31, za koji je pokazano da je modulator ekspresije survivina i da doprinosi povećanju rizika od obolevanja od različitih tipova tumora. Cilj rada. Cilj rada je bio da se analizira učestalost genotipova i alela za -31G/C polimorfizam gena za survivin kod osoba obolelih od SCC i BCC i kod zdravih ispitanika. Logističkom regresionom analizom ispitana je povezanost ovog polimorfizma i rizika za nastanak SCC i BCC. Metode rada. Učestalosti alela i genotipova kod 88 osoba obolelih od SCC, 60 osoba obolelih od BCC i 111 zdravih ispitanika određene su lančanom reakcijom polimeraze i restrikcionom analizom. Logističkom regresijom procenjena je sklonost ka razvoju SCC i BCC. Rezultati. Genotip CC je utvrđen kod 15% ispitanika sa SCC, 13% sa BCC i 12% zdavih osoba. Genotip CG je zabeležen kod 41% ispitanika sa SCC, 35% sa BCC i 48% zdravih osoba. Genotip GG je otkriven kod 44% osoba sa SCC, 52% sa BCC i 40% zdravih ispitanika. Učestalost G-alela bila je sledeća: 0,65 kod ispitanika sa SCC, 0,69 kod ispitanika sa BCC i 0,64 u grupi zdravih osoba. Učestalost C-alela bila je: 0,35 kod ispitanika sa SCC, 0,31 kod ispitanika sa BCC i 0,36 u grupi zdravih osoba. Nije bilo statistički značajne razlike u raspodeli genotipova i alela između bolesnika s karcinomima i zdravih ispitanika (p>0,05). Zaključak. Polimorfizam -31G/C u promotoru gena za survivin ne može se smatrati faktorom rizika za razvoj ova dva tipa tumora.",
publisher = "Srpsko lekarsko društvo, Beograd",
journal = "Srpski arhiv za celokupno lekarstvo",
title = "Analysis of polymorphism in the survivin gene promoter as a potential risk factor for head and neck cancers development, Analiza polimorfizma u promotoru gena za survivin kao mogućeg faktora rizika za nastanak tumora glave i vrata",
volume = "141",
number = "5-6",
pages = "304-307",
doi = "10.2298/SARH1306304K"
}
Kostić, M., Nikolić, N., Ilić, B., Čarkić, J., Milenković, S.,& Vukadinović, M.. (2013). Analysis of polymorphism in the survivin gene promoter as a potential risk factor for head and neck cancers development. in Srpski arhiv za celokupno lekarstvo
Srpsko lekarsko društvo, Beograd., 141(5-6), 304-307.
https://doi.org/10.2298/SARH1306304K
Kostić M, Nikolić N, Ilić B, Čarkić J, Milenković S, Vukadinović M. Analysis of polymorphism in the survivin gene promoter as a potential risk factor for head and neck cancers development. in Srpski arhiv za celokupno lekarstvo. 2013;141(5-6):304-307.
doi:10.2298/SARH1306304K .
Kostić, Marija, Nikolić, Nadja, Ilić, Branislav, Čarkić, Jelena, Milenković, Sanja, Vukadinović, Miroslav, "Analysis of polymorphism in the survivin gene promoter as a potential risk factor for head and neck cancers development" in Srpski arhiv za celokupno lekarstvo, 141, no. 5-6 (2013):304-307,
https://doi.org/10.2298/SARH1306304K . .
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