Optimized Marker System for Early Diagnosis of Breast Cancer

Autor: Eleonora A. Braga, A. M. Burdennyy, S S Lukina, I. V. Pronina, Vitaly I. Loginov, Tatiana P. Kazubskaya, N A Ivanova, D. S. Khodyrev, E. A. Filippova
Rok vydání: 2021
Předmět:
Zdroj: Bulletin of Experimental Biology and Medicine. 172:57-62
ISSN: 1573-8221
0007-4888
Popis: Changes in the methylation levels of 21 microRNA genes in 91 breast cancer samples in comparison with paired samples of histologically unchanged tissue were studied by quantitative methylation-specific PCR. For 19 microRNA genes, a significant increase in the methylation level in tumors in comparison with normal tissues was shown (Mann-Whitney test). When considering the data for breast cancer samples only from patients with clinical stages I and II (59samples), 17 genes with a significantly increased level of methylation were identified. Increased methylation level for 11 genes (MIR124-1, MIR124-3, MIR125B-1, MIR127, MIR129-2, MIR132, MIR137, MIR193a, MIR34B/C, MIR375, and MIR9-1) compared to the paired norm was highly significant (p
Databáze: OpenAIRE