TGF-β促进肝细胞癌转移通过通过m6A修改PCDHGA9的转移
Huamin Wang1, Wen Guan1, Xianzhou Zhang2
1Guangdong Key Laboratory of Animal Conservation and Resource Utilization, Guangdong Public Laboratory of Wild Animal Conservation and Utilization, Institute of Zoology, Guangdong Academy of Sciences, Guangzhou, China.
Cancer biotherapy & radiopharmaceuticals
|May 10, 2024
概括
甲基甲基甲基甲基甲基甲基甲基甲基甲基甲基甲基甲基甲基甲基甲基甲基甲基甲基甲基甲基甲基甲基甲基甲基甲基甲基甲基甲基甲基甲基甲基甲基甲基甲基甲基甲基甲基甲基甲基甲基甲基甲基甲基甲基甲基甲基甲基甲基甲基甲基甲基甲基甲基甲基甲基甲基甲基甲基甲基甲甲基甲基甲基甲基甲基甲基甲基甲基甲基甲基甲基甲基甲基甲基甲基甲基甲基甲基甲基甲基甲基甲基甲基甲基甲基甲基甲基甲基甲基甲基甲基甲基甲基甲基甲基甲基甲基甲基甲基甲基甲基甲基甲基甲基甲基甲基甲基甲基甲基甲基甲基甲基甲基甲基 转化生长因子-β (TGF-β) 通过通过m6A修饰来降低PCDHGA9水平来促进HCC的进展.
科学领域:
- 在瘤学瘤学.
- 分子生物学分子生物学
- 癌症研究 癌症研究
背景情况:
- 肝细胞癌 (HCC) 是一种具有高死亡率的致命恶性瘤,主要是由于转移.
- 已知瘤抑制剂在转移中的Protocadherin Gamma亚家族A,9 (PCDHGA9) 的作用在HCC中尚不清楚.
- 了解PCDHGA9的功能对于开发新的HCC治疗策略至关重要.
研究的目的:
- 研究PCDHGA9在HCC中的表达,临床意义和分子机制.
- 阐明PCDHGA9,上皮层-介质细胞过渡 (EMT) 和HCC中转移之间的关系.
- 探索转化生长因子-β (TGF-β) 和N6-甲基氨酸 (m6A) 修饰在PCDHGA9功能中的调节作用.
主要方法:
- 组织微阵列免疫光对PCDHGA9表达和临床相关性.
- 在体外测试 (伤口愈合,穿孔) 以评估PCDHGA9操纵的HCC细胞迁移.
- 使用shPCDHGA9异种移植的体内研究来评估瘤生长和转移.
- 西方斑对于表皮细胞-介质细胞过渡 (EMT) 标记物.
- 细胞计数套件-8和流细胞计量用于增殖和亡.
- 甲基化RNA免疫沉,RT-qPCR和西部斑块分析TGF-β对PCDHGA9 m6A修饰的影响.
主要成果:
- 在HCC组织中PCDHGA9表达的减少与预后不佳相关.
- 调节PCDHGA9水平在体外显著影响HCC细胞迁移.
- 在体内中断PCDHGA9导致瘤转移的增加.
- 刺激TGF-β增强了HCC细胞的增殖,并抑制了细胞亡.
- TGF-β诱导的m6A修饰导致PCDHGA9的降解,促进EMT.
结论:
- 通过抑制EMT和转移,PCDHGA9作为HCC中的瘤抑制剂起作用.
- 通过m6A修饰,TGF-β通过准PCDHGA9的稳定性来促进HCC的进展.
- PCDHGA9代表了管理HCC转移的潜在治疗标.
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