类似M1的巨细胞通过P2X4受体调节结直肠癌中的T细胞透
Kun Zhou1, Xintian Zhang1, Yu Liang1
1Shanghai Key Laboratory of Gut Microecology and Associated Major Diseases Research, Digestive Disease Research and Clinical Translation Center, Department of Gastroenterology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, China.
P2X4受体 (P2X4R) 通过引起线粒体功能障碍,在瘤相关的巨细胞 (TAMs) 中驱动M1样极化. 这种重编程增强了抗瘤T细胞的反应,并可能为结直肠癌 (CRC) 提供一种新的治疗策略.
科学领域:
- 免疫学 免疫学 免疫学
- 在瘤学瘤学.
- 细胞生物学 细胞生物学
背景情况:
- 瘤相关巨细胞 (TAMs) 是结直肠癌 (CRC) 免疫的关键参与者.
- 在CRC中控制TAM两极分化的机制尚未完全理解.
研究的目的:
- 研究P2X4受体 (P2X4R) 在TAM两极化中的作用.
- 阐明在CRC中将P2X4R与TAM功能联系起来的分子通路.
主要方法:
- 使用CRC细胞调节介质进行体外TAM诱导.
- 免疫光,线粒体检测和流细胞计.
- 分析CRC患者组织中的P2X4R表达和与预后的相关性.
主要成果:
- 在TAMs中,P2X4R激活调解流入和线粒体功能障碍.
- 线粒体功能障碍导致DNA释放和cGAS-STING-IFNB1通路的激活,促进M1类的极化.
- 表达P2X4R的TAM增强了CD8+T细胞存活率和细胞毒性在体外和体内.
- 在CRC组织中减少P2X4表达与较差的患者预后相关.
结论:
- 在结直肠癌中,P2X4R是M1-样TAM两极分化的关键调节者.
- 准P2X4R可能是重新编程TAM并改善CRC治疗结果的新策略.
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