分子生物学
IVD分子诊断
细胞培养与分析
蛋白研究
细胞因子
重组蛋白
抗体
高通量测序建库
病原检测UCF系列
生物医药
工具酶
抑制剂激活剂与常用试剂
仪器
耗材

MAGI2-AS3 inhibits breast cancer by downregulating DNA methylation of MAGI2

Xiaolong Xu, Xiaoning Yuan, Jiali Ni, Jing Guo, Yang Gao, Weinan Yin, Feng Li, Lei Wei, Jingwei Zhang

Journal:JOURNAL OF CELLULAR PHYSIOLOGY

IF:5.55

DOI:10.1002/jcp.29922

PMID:32730644

Published:2020-07-30

research field:肿瘤学分子生物学遗传学

Abstract

Breast cancer is one of the most threatening diseases for women. Long noncoding RNAs were reported to be involved in breast cancer development. In this study, we analyzed The Cancer Genome Atlas breast cancer tissue high-throughput sequencing data and screened and validated the low-expressing long noncoding RNA named MAGI2-AS3. Through gene coexpression analysis, we found that MAGI2-AS3 has a good expression correlation with MAGI2. Overexpression of MAGI2-AS3 or MAGI2 in breast cancer cells MCF-7 would inhibit the Wnt/β-catenin pathway and inhibit cell proliferation and migration. Gene structure and DNA methylation analysis results indicated that MAGI2-AS3 may act as a cis-acting regulatory element downregulating the DNA methylation level of the MAGI2 promoter region, and the DNA demethylase TET1 inhibitor can reverse MAGI2-AS3 overexpression caused upregulation of MAGI2 and cellular effects. Our findings reveal the role of MAGI2-AS3 in breast cancer and provide potential novel therapeutic targets for metastatic breast cancer intervention.

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