在瘤微环境中重新编程自然杀手细胞:挑战和治疗机会
Wenxue Ma1, Sheldon Morris2, Catriona Jamieson2
1Sanford Stem Cell Institute, Division of Regenerative Medicine, Department of Medicine, Moores Cancer Center, University of California San Diego, La Jolla, CA 92093, USA.
Cytokine & growth factor reviews
|October 15, 2025
概括
自然杀手 (NK) 细胞在癌症免疫中表现出双重作用. 虽然它们具有强大的细胞毒性作用,但它们也可以成为瘤微环境中的抑制性瘤相关NK细胞 (TANK),从而阻碍免疫治疗.
科学领域:
- 免疫学 免疫学 免疫学
- 癌症生物学 癌症生物学
- 细胞和分子医学是细胞和分子医学.
背景情况:
- 自然杀手 (NK) 细胞是关键的先天性免疫作用因子,传统上被认为具有快速的抗瘤和抗病毒反应.
- 它们的细胞毒性和细胞因子分泌能力使它们在CAR-NK细胞疗法等免疫疗法中具有价值.
- 新出现的证据显示,NK细胞可以在瘤微环境 (TME) 中采用抑制性表型.
研究的目的:
- 批判性地审查NK细胞在癌症免疫中的双重作用.
- 探索NK细胞如何同时具有抗瘤和促瘤的作用.
- 讨论NK细胞可塑性在癌症免疫治疗中的治疗含义.
主要方法:
- 文献综述和关于癌症NK细胞功能的当前研究的综合.
- 分析NK细胞成为抑制性的机制 (例如,细胞因子竞争,免疫编辑).
- 检查影响NK细胞可塑性的因素,包括细胞因子信号传递和TME内的空间分布.
主要成果:
- NK细胞表现出可塑性,在TME内分化为调节性或功能障碍的表型 (TANK).
- 这些TANK可以抑制CD8+T细胞活性,并有助于抵抗免疫检查点阻塞 (ICB).
- NK细胞的行为是由TME塑造的,影响它们对抗瘤免疫力的贡献.
结论:
- NK细胞在癌症免疫中具有复杂的,取决于情境的作用,充当效应剂和调节剂.
- 了解NK细胞重编程对于优化癌症免疫治疗策略至关重要.
- 向或重编程NK细胞为改善癌症治疗结果提供了一个有希望的途径.
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