瘤中自然杀手细胞的多维可塑性
Xinya Yang1,2, Zhaoyang Song1, Ligang Chen3
1Department of Pathology, Xijing Hospital and School of Basic Medicine, Fourth Military Medical University, Xi'an, China.
Cell death & disease
|December 22, 2025
概括
自然杀手 (NK) 细胞在瘤微环境 (TME) 中适应,变得功能障碍,并有助于瘤逃避. 了解这种可塑性是开发有效的NK细胞治疗癌症的关键.
科学领域:
- 免疫学 免疫学 免疫学
- 癌症生物学 癌症生物学
- 细胞的新陈代谢
背景情况:
- 自然杀手 (NK) 细胞在瘤微环境 (TME) 中表现出适应性.
- NK细胞的功能是通过TME内的表型,代谢和受体表达的动态转变来调节的.
- 这种适应性有助于抗瘤免疫和瘤免疫逃避.
研究的目的:
- 探索TME内的NK细胞的适应机制.
- 了解NK细胞可塑性如何影响抗瘤免疫和瘤免疫逃避.
- 确定针对癌症NK细胞适应性的治疗策略.
主要方法:
- 在TME中对NK细胞受体重塑的分析.
- 研究驱动NK细胞功能障碍的免疫抑制因素.
- 评估TME内的NK细胞中的代谢重编程.
- 针对NK细胞可塑性的治疗策略的审查.
主要成果:
- 在TME中的NK细胞表现出受体重塑,抑制信号增加,激活信号减少.
- 形成了功能障碍的NK细胞子集,如耗尽的TIM-3+和组织寄存的CD49a+群体.
- 免疫抑制性TME因子诱导过渡到调节性或衰老状态,损害瘤监测.
- 代谢重编程通过营养剥夺和代谢副产品损害NK细胞效应器功能.
结论:
- 在TME中NK细胞的可塑性在癌症免疫和逃避中发挥着双重作用.
- 治疗策略包括工程NK细胞,代谢恢复和TME调节.
- 克服TME异质性和持续的NK细胞功能障碍对于成功的NK细胞治疗至关重要.
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