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通过激活肝细胞重编程,IGF2BP3/HIF1A/YAP信号传导在驱动急性至慢性肝衰竭中发挥作用
1Department of Transplantation, The Third Xiangya Hospital, Central South University, China; Engineering and Technology Research Center for Transplantation Medicine of National Health Commission, China.
Cellular signalling
|May 31, 2023
概括
我们发现IGF2BP3/HIF1A/YAP信号驱动肝细胞重编程,导致急性至慢性肝衰竭 (ACLF) 的肝损伤. 这一发现为ACLF治疗提供了潜在的治疗点.
科学领域:
- 肝病学 肝病学是一种肝病学.
- 分子生物学分子生物学
- 基因组学就是基因组学.
背景情况:
- 急性至慢性肝衰竭 (ACLF) 具有很高的患病率和死亡率.
- ACLF的潜在机制尚未完全理解,缺乏有效的治疗方法.
- 新的分子机制和ACLF的治疗点需要识别.
研究的目的:
- 为了发现驱动ACLF的新型分子机制.
- 为了确定ACLF的潜在治疗点.
- 研究IGF2BP3/HIF1A信号在ACLF病变发生中的作用.
主要方法:
- 转录基因数据集的综合分析和生物信息学分析.
- 在临床样本中验证基因和蛋白质的表达,使用西布洛特和qPCR.
- 对HIF1A的N6-甲基亚诺辛 (m6A) RNA修饰的研究.
- 在细胞系 (HepG2,Hep3B) 中使用基因操纵对分子机制的功能验证.
主要成果:
- IGF2BP3充当HIF1AmRNA的m6A阅读器,增强其稳定性和表达.
- HIF1A激活促进RhoA,并通过抑制LATS1/2.2.抑制YAP酸化来抑制YAP酸化.
- 非酸化的YAP转移到核中诱导胎儿肝脏程序,导致ACLF的肝损伤.
结论:
- 揭示了一种涉及IGF2BP3/HIF1A/YAP信号在肝细胞重编程和ACLF诱导的肝损伤中的新型分子机制.
- 已识别的信号通路为ACLF治疗提供了潜在的治疗点.
关键词:
急性至慢性肝功能衰竭 (ACLF)肝细胞重编程/胎儿肝脏计划低氧诱导因子 (HIF) 是指低氧诱导因子.类似胰岛素的生长因子-2RNA结合蛋白-3 (IGF2BP3)N6-甲基氨酸 (m6A) 是一种RNA修饰的RNA.是的相关蛋白 (YAP) 是的更多相关视频
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