TY  - JOUR
AU  - Nikolić, Nađa
AU  - Aničić, Boban
AU  - Čarkić, Jelena
AU  - Simonovic, Jelena
AU  - Toljic, Bosko
AU  - Tanić, Nasta
AU  - Tepavcevic, Zvezdana
AU  - Vukadinovic, Miroslav
AU  - Konstantinovic, Vitomir S.
AU  - Milašin, Jelena
PY  - 2015
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/778
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. (C) 2015 Elsevier Ltd. All rights reserved.
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, Nađa and Aničić, Boban and Čarkić, Jelena and Simonovic, Jelena and Toljic, Bosko and Tanić, Nasta and Tepavcevic, Zvezdana and Vukadinovic, Miroslav and Konstantinovic, Vitomir S. 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. (C) 2015 Elsevier Ltd. All rights reserved.",
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., Simonovic, J., Toljic, B., Tanić, N., Tepavcevic, Z., Vukadinovic, M., Konstantinovic, V. S.,& Milašin, J.. (2015). High frequency of p16 and p14 promoter hypermethylation and marked telomere instability in salivary gland tumors. in Archives of Oral Biology, 60(11), 1662-1666.
https://doi.org/10.1016/j.archoralbio.2015.08.011

Nikolić N, Aničić B, Čarkić J, Simonovic J, Toljic B, Tanić N, Tepavcevic Z, Vukadinovic M, Konstantinovic VS, 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, Nađa, Aničić, Boban, Čarkić, Jelena, Simonovic, Jelena, Toljic, Bosko, Tanić, Nasta, Tepavcevic, Zvezdana, Vukadinovic, Miroslav, Konstantinovic, Vitomir S., 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 . .