通过IGF2BP1相互作用,CircNF1通过稳定HMGA2mRNA促进胃癌转移
Yingying Sun1, Yanli Ge2, Zhiyu Xia2
1Department of Gastroenterology, The Second Qilu Hospital of Shandong University, Jinan, China.
Frontiers in immunology
|March 5, 2026
概括
循环NF1 (circNF1) 通过稳定HMGA2.2,促进胃癌转移. ZNF460激活circNF1,突出显示了胃癌的新途径和潜在的治疗点.
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:
- 胃癌 (GC) 是全球癌症死亡的主要原因,转移是主要的驱动因素.
- 循环RNAs (circRNAs) 在癌症中起作用,但它们在GC转移中的特定参与尚未完全理解.
研究的目的:
- 研究circNF1在胃癌转移中的功能作用.
- 阐明 circNF1 在GC转移中的功能背后的分子机制.
主要方法:
- 在GC组织中评估circNF1表达,使用in situ杂交.
- 在circNF1操纵后在体外和体外模型中评估GC细胞迁移和肺转移.
- 研究了circNF1,IGF2BP1和HMGA2之间的分子相互作用,并确定了circNF1的上游调节者.
主要成果:
- 过度表达circNF1增强了GC细胞迁移和肺转移,而敲击抑制了这些效应.
- circNF1与IGF2BP1相互作用,稳定HMGA2mRNA并增加其表达.
- ZNF460作为NF1宿主基因的转录激活剂,对circNF1.1进行上调.
结论:
- 在ZNF460-circNF1-IGF2BP1-HMGA2轴促进胃癌转移.
- circNF1是一种潜在的预后生物标志物和转移性GC的治疗标.
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