MiR-509-3p通过激活FOXM1-介导的p38/MK2通路来促进胃癌的发展
Nan Jiang1, Jiawei Kang1, Yi Ding2
1Department of Clinical Medicine, Xinjiang Medical University, Ürümqi, China.
Biomolecules & biomedicine
|September 25, 2024
概括
微RNA-509-3p (miR-509-3p) 通过抑制FOXM1蛋白来抑制胃癌 (GC) 的进展. 这种微RNA调节p38 MAPK/MK2通路,为GC治疗提供了潜在的治疗标.
科学领域:
- 在瘤学瘤学.
- 分子生物学分子生物学
- 生物化学 生化学
背景情况:
- 胃癌 (GC) 是一种普遍存在的恶性瘤,特别是在亚洲,其监管机制尚不清楚.
- 微RNA-509-3p (miR-509-3p) 与瘤发生有关,但其在GC中的特定作用和机制需要阐明.
研究的目的:
- 研究miR-509-3p在调节胃癌进展中的机制.
- 在GC中识别和验证miR-509-3p的目标.
- 探索FOXM1/p38 MAPK/MK2通路在miR-509-3p介导的GC抑制中的作用.
主要方法:
- 生物信息分析 (miRWalk,TargetScan,ENCORI,TCGA) 用于预测miR-509-3p的目标.
- 双露西法酶测定以确认miR-509-3p与FOXM1.1的结合.
- 在体外测试 (CCK-8,EdU,Transwell,伤口愈合,流细胞计,西斑) 以评估GC细胞行为和分子变化.
- 在体内异种移植模型评估miR-509-3p的抗瘤作用.
- 组织病理学染色 (道,HE,Ki67,FOXM1 IHC) 用于瘤分析.
主要成果:
- miR-509-3p直接向并抑制分叉盒蛋白M1 (FOXM1).
- 过度表达miR-509-3p抑制了GC细胞的增殖,迁移和入侵,同时促进了细胞亡.
- 击败miR-509-3p增强了GC细胞中的恶性进展.
- miR-509-3p通过FOXM1.1调节p38 MAPK/MAPK激活蛋白激酶2 (p38/MK2) 途径.
- 在体内通过FOXM1-介导的p38/MK2通路,miR-509-3p的过度表达抑制了瘤生长.
结论:
- miR-509-3p在胃癌中起到瘤抑制作用.
- 该机制涉及FOXM1的抑制,导致p38/MK2通路的下调.
- miR-509-3p是抑制胃癌进展的潜在治疗标.
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