在人类肝细胞癌中,GPER1信号限制了巨细胞的增殖和积累
Yanyan Yang1,2, Yongchun Wang2, Hao Zou2
1MOE Key Laboratory of Gene Function and Regulation, School of Life Sciences, Sun Yat-sen University, Guangzhou, China.
Frontiers in immunology
|November 25, 2024
概括
性差异影响肝癌中的巨细胞增殖. 针对G蛋白结合雌激素受体1 (GPER1) 信号与G-1抑制瘤生长,改善患者的存活率.
科学领域:
- 在瘤学瘤学.
- 免疫学 免疫学 免疫学
- 内分泌学 在内分泌学.
背景情况:
- 性激素会影响瘤的发展,但它们在瘤微环境中的作用,特别是肝细胞癌 (HCC) 的作用尚不清楚.
- 巨细胞的增殖和功能是瘤微环境的关键组成部分.
- 研究HCC的性别差异对于了解瘤进展至关重要.
研究的目的:
- 研究性别差异对肝细胞癌 (HCC) 巨细胞增殖和积累的影响.
- 探索性激素相关信号在调节HCC瘤微环境中的巨细胞行为中的作用.
主要方法:
- 免疫组织化学测试以评估HCC组织中的免疫细胞密度.
- 免疫光和流动细胞测量以确定性激素信号在巨细胞增殖中的作用.
- 在体外实验和小鼠HCC模型来检查监管机制.
主要成果:
- 与女性相比,男性HCC患者的巨细胞增殖和密度较高.
- G蛋白结合雌激素受体1 (GPER1) 表达在增殖巨细胞中下降,与增殖相反相关.
- 在小鼠中,GPER1激活通过MEK/ERK通路抑制了巨细胞的增殖,减少了PD-L1的表达,并延迟了瘤的生长.
- 较高的GPER1+巨细胞水平与改善的患者存活率和无复发存活率相关.
结论:
- 在HCC中,GPER1信号传递在调节巨细胞增殖和功能方面发挥着新的作用.
- 准GPER1为HCC提供了潜在的治疗策略,考虑到与性别相关的患者差异.
- 了解GPER1的作用可以为性别特异性HCC疗法的开发提供信息.
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