在瘤微环境中解读免疫细胞的代谢重编程
Yinping Wang1, Weijie Chen2, Zida Wang3
1Department of Biliary-Pancreatic Surgery, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
Journal of translational medicine
|October 7, 2025
概括
瘤透的免疫细胞表现出显著的代谢变化,特别是像巨细胞这样的髓状细胞,它们显示脂质积累并与不良结果相关. 针对这些免疫代谢适应可以改善癌症免疫疗法.
科学领域:
- 免疫学 免疫学 免疫学
- 癌症生物学 癌症生物学
- 代谢过程中的代谢.
背景情况:
- 免疫代谢适应是瘤免疫逃脱和对免疫疗法的抵抗的关键驱动因素.
- 了解瘤透免疫细胞中的代谢重新连接对于推进癌症进展见解至关重要.
研究的目的:
- 在结肠癌中,研究瘤内的免疫细胞和相邻的正常组织中的代谢异质性.
- 用小鼠模型评估瘤和正常组织中主要免疫细胞种群的代谢地图.
主要方法:
- 结肠癌组织的单细胞转录组概况.
- 使用MC38结肠直肠癌小鼠模型进行免疫细胞代谢分析.
主要成果:
- 髓状细胞在结直肠癌 (CRC) 患者组织中表现出主导的代谢活性.
- 在瘤透免疫细胞中观察到明显的新陈代谢重编程,增加葡萄糖/脂质吸收和巨细胞中的脂质积累.
- 巨细胞显示代谢适应性,CD8+ T细胞线粒体脱极化,中性粒细胞高氧化应激,与瘤阶段和临床结果相关.
结论:
- 瘤微环境中的免疫细胞表现出异质和动态的代谢特性.
- 研究结果为开发针对癌细胞代谢的新疗法提供了洞察力,以提高抗瘤免疫力.
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