Methylation of long non-coding rna genes: SNHG6, SNHG12, TINCR in ovarian cancer
- Authors: Lukina S.S.1, Burdennyy A.M.1, Filippova E.A.1, Uroshlev L.A.2, Pronina I.V.1, Ivanova N.A.1, Fridman M.V.2, Zhordania K.I.3, Kazubskaya T.P.3, Kushlinskii N.E.3, Loginov V.I.1,4, Braga E.A.1,4
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Affiliations:
- Institute of General Pathology and Pathophysiology
- Vavilov Institute of General Genetics, Russian Academy of Science
- N.N. Blokhin National Medical Research Center of Oncology
- Research Centre for Medical Genetics
- Issue: Vol 58, No 3 (2024)
- Pages: 403-413
- Section: ГЕНОМИКА. ТРАНСКРИПТОМИКА
- URL: https://journals.rcsi.science/0026-8984/article/view/274495
- DOI: https://doi.org/10.31857/S0026898424030059
- EDN: https://elibrary.ru/JCWWHN
- ID: 274495
Cite item
Abstract
Ovarian cancer (OC) develops asymptomatically and is not diagnosed until advanced stages, which increases the mortality rate from this disease. In the diagnosis and treatment of OC, new prospects have been opened in studies of the gene regulation mechanisms involving long non-coding RNAs (lncRNAs) and identification of lncRNA genes inhibited by methylation of promoter regions. Using a set of 122 samples of primary OC tumors, by methylation specific real-time PCR, changes in the methylation level of a group of lncRNA genes were studied: PLUT, SNHG1, SNHG6, SNHG12, and TINCR. Using the nonparametric Mann–Whitney test, a statistically significant (p < 0.001) increase in the methylation level of these 5 lncRNA genes in tumors was shown. A statistically significant (p < 0.05) correlation was established between the level of methylation of the lncRNA genes SNHG6, SNHG12 and TINCR with the stage of the tumor process, the histological grade and the presence of metastases. Using real-time RT-qPCR, a decrease in the expression level of the SNHG6, SNHG12 and TINCR genes was observed and a significant correlation of methylation with the expression of SNHG6 and TINCR was shown (rs ≤ −0.5, p < 0.001). Thus, new lncRNA genes representing potential epigenetic markers of ovarian cancer have been identified.
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About the authors
S. S. Lukina
Institute of General Pathology and Pathophysiology
Email: burdennyy@gmail.com
Russian Federation, Moscow, 125315
A. M. Burdennyy
Institute of General Pathology and Pathophysiology
Author for correspondence.
Email: burdennyy@gmail.com
Russian Federation, Moscow, 125315
E. A. Filippova
Institute of General Pathology and Pathophysiology
Email: burdennyy@gmail.com
Russian Federation, Moscow, 125315
L. A. Uroshlev
Vavilov Institute of General Genetics, Russian Academy of Science
Email: burdennyy@gmail.com
Russian Federation, Moscow, 119991
I. V. Pronina
Institute of General Pathology and Pathophysiology
Email: burdennyy@gmail.com
Russian Federation, Moscow, 125315
N. A. Ivanova
Institute of General Pathology and Pathophysiology
Email: burdennyy@gmail.com
Russian Federation, Moscow, 125315
M. V. Fridman
Vavilov Institute of General Genetics, Russian Academy of Science
Email: burdennyy@gmail.com
Russian Federation, Moscow, 119991
K. I. Zhordania
N.N. Blokhin National Medical Research Center of Oncology
Email: burdennyy@gmail.com
Russian Federation, Moscow, 115478
T. P. Kazubskaya
N.N. Blokhin National Medical Research Center of Oncology
Email: burdennyy@gmail.com
Russian Federation, Moscow, 115478
N. E. Kushlinskii
N.N. Blokhin National Medical Research Center of Oncology
Email: burdennyy@gmail.com
Russian Federation, Moscow, 115478
V. I. Loginov
Institute of General Pathology and Pathophysiology; Research Centre for Medical Genetics
Email: eleonora10_45@mail.ru
Russian Federation, Moscow, 125315; Moscow, 115522
E. A. Braga
Institute of General Pathology and Pathophysiology; Research Centre for Medical Genetics
Email: eleonora10_45@mail.ru
Russian Federation, Moscow, 125315; Moscow, 115522
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