准BATF2-RGS2轴可减少T细胞耗尽并恢复抗瘤免疫力
Xuyu Gu1, Chanchan Gao2, Xiangyu Su2
1Department of Oncology, School of Medicine, Shanghai Pulmonary Hospital, Tongji University, Shanghai, 200433, China.
Molecular cancer
|May 29, 2025
概括
由B-ATF2控制的G蛋白信号传递2 (RGS2) 的调节者,在肺癌中驱动T细胞耗尽. 针对这一轴可以提高抗瘤免疫力和免疫疗法的有效性.
科学领域:
- 免疫学 免疫学 免疫学
- 在瘤学瘤学.
- 分子生物学分子生物学
背景情况:
- 肺癌 (LC) 表现出免疫逃避,部分原因是T细胞耗尽.
- 了解T细胞耗尽的调节者对于改善癌症免疫疗法至关重要.
研究的目的:
- 研究RGS2在肺癌中免疫调节中的作用.
- 探索RGS2和BATF2在调节T细胞耗尽和瘤免疫逃避中的调节关系.
主要方法:
- 来自经过PD-1阻塞的LC患者的CD8+T细胞的单细胞转录组分析.
- 鼠标模型 (RGS2-/-, BATF2-/-) 评估RGS2和BATF2在瘤生长和免疫透中的作用.
- 在体外共同培养测定T细胞细胞毒性和光酶记者测定转录调节的测定.
主要成果:
- 耗尽的CD8+T细胞中的RGS2表达与预后不佳和免疫治疗反应有限相关.
- 缺少RGS2抑制了瘤转移和血管生成,增强了CD8+效应T细胞.
- BATF2调节RGS2,促进T细胞耗尽;BATF2缺乏改善了抗瘤免疫力.
结论:
- 在BATF2-RGS2轴驱动T细胞耗尽和免疫逃避在肺癌.
- 针对BATF2-RGS2通路提供了一种潜在的策略,通过逆转T细胞耗尽来提高免疫治疗的疗效.
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