实用医学杂志2025，Vol.41Issue(5)：657-663,7.DOI:10.3969/j.issn.1006-5725.2025.05.006
LINC01772对A549细胞周期、凋亡及放疗敏感性的影响
Effects of LINC01772 on cell cycle,apoptosis and radiosensitivity of A549
摘要
Abstract
Objective To explore the effects of long non-coding RNA LINC01772 on cell cycle,apoptosis and radiotherapy sensitivity of A549.Methods A549 cells were resuscitated and cultured for experimental pur-pose.The effects of LINC01772 knockdown on cell viability,cell cycle progression,and apoptosis were assessed using CCK-8 assays and flow cytometry,and apoptosis-related proteins were analyzed using western blotting.CCK-8 and clonogenic assays were used to measure the changes in the sensitivity of A549 cells to radiotherapy following various radiation doses,and flow cytometry to examine alterations in the cell cycle and apoptosis post-radiation treatment.Results Following lentiviral transfection that reduced LINC01772 levels in A549 cells,a significant decrease in cell viability(P<0.01)was observed alongside an increase in apoptosis(P<0.01).Notably,expres-sions of Bad and Cleaved Caspase-3 were significantly elevated(P<0.01),while Bcl-2 expression was markedly decreased(P<0.01).After exposure to different radiation doses,a dose-dependent reduction in A549 cell viability was noted(P<0.01),accompanied by a significant impairment of clonogenic ability(P<0.01),G2/M phase arrest within the cell cycle(P<0.01),and an increased incidence of apoptosis(P<0.01).Conclusion Inhibiting long non-coding RNA LINC01772 expression substantially diminishes cellular viability in A549 cells,enhances apoptotic processes,disrupts their cycling mechanisms,and augments their sensitivity to radiotherapy,suggesting that this non-coding RNA may serve as a potential target for enhancing lung cancer radiotherapy.关键词
非小细胞肺癌/放射治疗/放疗敏感性/长链非编码RNAKey words
non-small cell lung cancer/radiation therapy/radiotherapy sensitivity/long non-coding RNAs分类
临床医学引用本文复制引用
何丽妃,朱琳,薛峰,闭祖悦,李赵鑫..LINC01772对A549细胞周期、凋亡及放疗敏感性的影响[J].实用医学杂志,2025,41(5):657-663,7.基金项目
国家自然科学基金项目(编号:82160471,82260498) （编号:82160471,82260498）
