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与癌症相关的介质细胞受到反米勒尔激素轴的调节
M Chauvin1, M-C Meinsohn1, S Dasari2
1Pediatric Surgical Research Laboratories, Massachusetts General Hospital, Boston, MA, USA; Department of Surgery, Harvard Medical School, Boston, MA, USA.
Cell reports
|July 15, 2023
概括
抗穆勒尔激素 (AMH) 和它的受体AMHR2轴通过影响癌症相关的骨干细胞 (CAMCs) 来驱动卵巢癌的生长. 阻断这个轴会减缓瘤的生长,并改变免疫微环境.
科学领域:
- 在瘤学瘤学.
- 细胞生物学 细胞生物学
- 免疫学 免疫学 免疫学
背景情况:
- 瘤微环境中的癌症关联介质细胞 (CAMCs) 参与促进瘤进展和免疫逃避.
- 癌细胞和CAMC之间的近信号传递是卵巢癌发展的关键因素.
研究的目的:
- 研究抗穆勒尔激素 (AMH) /AMH受体2 (AMHR2) 轴在调解CAMCs在卵巢癌中的前瘤功能中的作用.
- 阐明AMH信号影响CAMC表型和功能的分子机制.
主要方法:
- 在人类和小鼠卵巢瘤中分析AMH和AMHR2表达.
- 在体外研究中,使用间皮细胞系和卵巢癌细胞来模拟CAMC重编程和AMH信号.
- 基因操纵 (过度表达和淘汰) 的AMHR2在介质细胞和体内研究,使用同基因小鼠模型.
主要成果:
- 卵巢癌细胞表达AMH,CAMCs表达AMHR2,形成一个膜轴.
- 癌细胞分泌的因素诱导CAMC中的AMHR2表达.
- 在CAMC中AMHR2的过度表达促进了免疫抑制性细胞因子和生长因子的分泌,增强了卵巢癌细胞的增殖.
- 在接受Amhr2-/-CAMCs的小鼠中,瘤生长显著减少,细胞因子概况发生变化,免疫检查点标志物减少 (PD1,CTLA4).
结论:
- AMH/AMHR2轴是卵巢癌中CAMC前瘤功能的关键调节器.
- 向AMH/AMHR2信号通路可能通过调节瘤微环境和免疫反应来代表卵巢癌的新疗法策略.
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