在结肠直肠癌中,不同调节性T细胞子组的对立功能
bioRxiv : the preprint server for biology
|February 20, 2025
概括
调节性T (Treg) 细胞在结直肠癌 (CRC) 中具有相反的作用. 某些IL-10+Treg细胞抑制瘤生长,而IL-10-Treg细胞促进瘤生长,影响CRC进展和预后.
科学领域:
- 免疫学 免疫学 免疫学
- 在瘤学瘤学.
- 癌症研究 癌症研究
背景情况:
- 众所周知,调节性T (Treg) 细胞促进固体器官癌症的进展.
- 在结直肠癌 (CRC) 中,Treg细胞很丰富,但它们在CRC进展中的作用尚不清楚.
- 现有研究表明,Treg细胞有助于固体器官癌症的进展.
研究的目的:
- 研究结直肠癌 (CRC) 中瘤透的Treg细胞子集的独特功能.
- 阐明Treg细胞影响CRC瘤生长和患者预后的机制.
- 探索基于Treg细胞子集功能的向治疗策略的潜力.
主要方法:
- 对两种不同的瘤Treg细胞子集的分析:IL-10产生 (IL-10+) 和非IL-10产生 (IL-10−).
- 在小鼠和人类CRC瘤和相邻组织中评估Treg细胞子集分布.
- 对Treg细胞子群丰度与人类CRC患者的疾病预后的相关性分析.
主要成果:
- 两种不同的Treg细胞子集IL-10+和IL-10−在CRC中表现出相反的功能.
- IL-10+ Treg细胞通过抑制从效应细胞CD4 T细胞中IL-17的产生来抑制CRC瘤的生长.
- IL-10-Treg细胞促进CRC瘤生长;它们的丰富性与更差的预后相关,而IL-10+Treg细胞与更好的预后相关.
结论:
- 在CRC中,IL-10+和IL-10−Treg细胞子集之间存在功能二分法.
- IL-10+Treg细胞作为瘤抑制剂,而IL-10−Treg细胞在CRC中是前瘤细胞.
- 这些发现为开发有针对性的疗法提供了理由,以选择性地消除前瘤Treg细胞,同时保持CRC中的抗瘤Treg细胞.
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