环-GLG1/miR-346/KCNJ9轴通过调节KCNJ9表达来驱动膀癌的恶性进展
Kangjie He1, Chunxiao Lin1, Hengyou Wang2
1Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, National Children's Regional Medical Center, Hangzhou, 310052, China; Zhejiang University School of Medicine, Hangzhou, 310052, China.
Experimental cell research
|January 6, 2026
概括
一种新发现的循环RNA,circ-GLG1,在膀癌中过度表达,并促进瘤的进展. 它通过miR-346海绵机制调节KCNJ9,激活关键癌症途径.
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:
- 膀癌是一种流行的尿道系统恶性瘤,进展机制不明.
- 循环RNAs (circRNAs) 越来越多地被认为是癌症中的角色,但它们在膀癌中的功能需要进一步阐明.
- 特定的circRNA hsa_circ_0040457 (circ-GLG1) 在膀癌中没有得到很好的特征.
研究的目的:
- 研究circ-GLG1在膀癌进展中的作用和机制.
- 基于circRNA调节来确定膀癌的潜在治疗点.
主要方法:
- 定量实时PCR用于评估膀癌组织和细胞中的circ-GLG1表达.
- 在体外和体内功能测试 (细胞增殖,迁移,裸体小鼠的瘤形成) 来评估circ-GLG1的作用.
- 转录组测序,基因本体学 (GO) 和基因和基因组的京都百科全书 (KEGG) 途径分析.
- 路西法酶记者分析证实了circ-GLG1,miR-346和KCNJ9.9之间的相互作用.
- 功能性救援实验以验证监管轴.
主要成果:
- 在膀癌组织和细胞中,Circ-GLG1显著过度表达,与晚期pTNM阶段和不良预后相关.
- 沉默circ-GLG1抑制了恶性表型和瘤生长,而其过度表达促进了进展.
- 环-GLG1激活了TGF-β,PI3K-AKT和MAPK信号通路.
- 转录组分析发现KCNJ9是由circ-GLG1.1调节的关键向基因.
- Circ-GLG1通过菌miR-346作为竞争的内源RNA (ceRNA) 起作用,从而缓解miR-346介导的KCNJ9.9抑制.
结论:
- Circ-GLG1在膀癌的进展中起着至关重要的致癌作用.
- "circ-GLG1/miR-346/KCNJ9"轴代表了膀癌中一种新的调节机制.
- Circ-GLG1可以作为潜在的诊断生物标志物和膀癌的治疗点.
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