由雄激素受体调节的lncRNA PRCAT71通过与前列腺癌中KHSRP的相互作用促进AR信号传递
Yongyong Yang1, Ting-You Wang1, Qianru Li2
1Department of Urology, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA.
Science advances
|April 9, 2025
概括
长非编码RNAPRCAT71通过通过KHSRP稳定雌激素受体 (AR) mRNA促进前列腺癌 (PCa). 针对PRCAT71-KHSRP-AR轴为PCa提供了一个新的治疗策略.
科学领域:
- 在瘤学瘤学.
- 分子生物学分子生物学
- 遗传学 是一个遗传学.
背景情况:
- 长非编码RNAs (lncRNAs) 越来越多地被认为是它们在癌症发展中的作用.
- 在前列腺癌 (PCa) 中 lncRNAs 的特定功能和调节机制在很大程度上仍未被探索.
研究的目的:
- 研究一种新型lncRNA,PRCAT71在前列腺癌进展中的作用.
- 阐明 PRCAT71 功能的基础分子机制及其与雄激素受体 (AR) 信号的关系.
主要方法:
- 定量实时PCR用于评估PCa组织中的PRCAT71表达.
- RNA干扰 (RNAi) 沉默PRCAT71并评估其对PCa细胞行为的影响.
- 西方涂抹和光酶试验分析AR信号通路.
- RNA免疫沉 (RIP) 测试以确认PRCAT71,KHSRP和AR mRNA之间的相互作用.
主要成果:
- 与良性前列腺组织相比,PRCAT71在原发性和转移性PCa组织中显著上调.
- 沉默PRCAT71减少了PCa细胞的增殖,迁移和入侵,并抑制了AR信号传递.
- PRCAT71作为支架,招募KHSRP来稳定AR mRNA,从而增强AR信号传递.
- PRCAT71的表达通过AR驱动的增强剂进行转录调节,建立一个积极的反循环.
结论:
- lncRNA PRCAT71通过KHSRP复合体稳定AR mRNA,在促进PCa进展方面发挥着至关重要的作用.
- PRCAT71-KHSRP-AR轴代表了前列腺癌治疗的潜在治疗标.
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