基础医学与临床2025，Vol.45Issue(10)：1298-1305,8.DOI:10.16352/j.issn.1001-6325.2025.10.1298
沉默LINC00460通过EZH2抑制人肺腺癌细胞系增殖与迁移
Silencing LINC00460 inhibits proliferation and migration of human lung adenocarcinoma cell lines via EZH2
摘要
Abstract
Objective To investigate the expression of long non-coding RNA LINC00460 in lung adenocarcino-ma(LUAD)and its effects on cell proliferation and migration.Methods Quantitative real-time polymerase chain reaction(RT-qPCR)was used to detect the expression of LINC00460 in LUAD cell lines(PC-9,A549,NCI-H1975 and H1299)and normal lung cell line(MRC-5).LINC00460 was silenced in A549 and H1299 cells using small interfering RNA(siRNA),followed by cell proliferation assessment with CCK-8 assay and evaluation of cell migration capacity through the Transwell assay.Fluorescence in situ hybridization(FISH)and RNA immunoprecipitation(RIP)assays were performed to determine the subcellular localization of LINC00460 and its interaction with EZH2.Western blot was applied to examine EZH2 and H3K27me3 ex-pression in cells.Results LINC00460 was highly expressed in LUAD cells,and the expression level was sig-nificantly decreased after silencing(P＜0.001).Silencing LINC00460 markedly inhibited the proliferation and migration of A549 and H1299 cells(P＜0.001).LINC00460 was primarily localized in the nucleus.RIP assays confirmed a significant interaction between LINC00460 and EZH2(P＜0.001).Furthermore,the silencing of LINC00460 resulted in a significant reduction in the expression of EZH2 and its downstream target H3K27me3(P＜0.001).Conclusions LINC00460 is highly expressed in LUAD cells.Silencing LINC00460 inhibits cell proliferation and migration through EZH2.This mechanism provides a basis for LINC00460 as a potential therapeutic target in lung adenocarcinoma.关键词
肺腺癌/LINC00460/锌指蛋白同源增强子2/组蛋白H3第27位赖氨酸的三甲基化Key words
lung adenocarcinoma/LINC00460/EZH2/H3K27me3分类
医药卫生引用本文复制引用
曾慈梅,黄邓高,王蕾,梁海梅,马西淼..沉默LINC00460通过EZH2抑制人肺腺癌细胞系增殖与迁移[J].基础医学与临床,2025,45(10):1298-1305,8.基金项目
海南省自然科学基金高层次人才项目(822RC868) （822RC868）
