催产素受体调节Hippo/YAP轴以驱动肝癌发生
Huijie Yang1, Jiayao Cui2, Peng Su3
1Xinxiang Medical University, China.
Cancer research
|July 31, 2025
概括
河马-YAP通路的失调驱动肝癌. 研究人员确定了催产素受体 (OXTR) 作为关键激活剂,发现其对手阿托西班有效抑制肝细胞癌 (HCC) 的生长.
科学领域:
- 在瘤学瘤学.
- 分子生物学分子生物学
- 药理学 药理学是指药理学的学科.
背景情况:
- 河马信号通路的失调,特别是YAP,是肝细胞癌 (HCC) 的关键驱动因素.
- 准Hippo通路为改善HCC患者存活率提供了潜在的治疗策略.
研究的目的:
- 为了识别与HCC中Hippo/YAP通路相关的G蛋白结合受体 (GPCRs).
- 研究催产素受体 (OXTR) 在HCC进展中的作用及其作为治疗点的潜力.
主要方法:
- 美国批准的GPCR向药物的无偏见的siRNA选.
- 对OXTR表达与Hippo基因特征和患者存活率的相关性分析.
- 在体内和体外功能测定使用异种移植,患者衍生的显着物,有机物和小鼠模型.
- 分子分析包括YAP脱,核积累和转录活动测定.
- 研究OXTR与Gαq/11和下游信号传输 (ROCK/LATS轴) 的相互作用.
- 染色体免疫沉 (ChIP) 测试用于评估YAP与OXTR增强剂区域的结合.
主要成果:
- OXTR被确定为Hippo/YAP轴在HCC.中的显著激活剂.
- 在HCC患者中,OXTR表达与糟糕的生存结果相关.
- 在多个临床前模型中,OXTR抗剂阿托西班在抑制HCC生长方面表现出有效性.
- 通过Gαq/11/ROCK/LATS通路促进YAP脱和核积累,OXTR激活促进了HCC的进展.
- 在YAP增强OXTR转录的地方存在一个积极的反循环.
结论:
- 催产素受体 (OXTR) 通过激活Hippo/YAP通路,在肝癌发生过程中发挥关键作用.
- 使用阿托西班抑制OXTR代表了肝细胞癌 (HCC) 的有前途的治疗策略.
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