来自巨细胞的IL8通过通过IL8-CXCR2轴对晚期结直肠癌患者的TIM3表达的下调来抑制CD8T细胞功能
Chenhui Zhao1, Dan Wang1, Zhen Li2
1Biotherapy Center, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450052, China; Cancer Center, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450052, China.
International immunopharmacology
|June 18, 2023
概括
来自巨细胞的互白素-8 (IL8) 通过CXCR2抑制T细胞免疫球蛋白和粘素域含蛋白3 (TIM3) 在结直肠癌 (CRC) 中的CD8+T细胞上,影响预后. 针对这个轴可以治疗先进的CRC.
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:
- 含有T细胞免疫球蛋白和粘素域的蛋白3 (TIM3) 是一个关键的免疫检查点.
- 在结直肠癌 (CRC) 中TIM3的作用及其在瘤微环境 (TME) 中的调节仍未得到充分研究.
研究的目的:
- 研究TIM3对CRC中CD8+T细胞的影响.
- 在CRC TME中探索TIM3监管机制.
主要方法:
- 流细胞计测试以评估TIM3表达在CRC患者的血液和组织中.
- 在CRC患者中进行血清细胞因子查的多重试验.
- 在体外实验评估IL8对CD8+T细胞和TIM3表达的影响.
- 对TIM3/IL8的生物信息学分析和预后相关性.
主要成果:
- 在晚期CRC中,CD8+ T细胞上的TIM3表达减少,与更差的预后相关.
- 巨细胞衍生IL8,一种TIM3在CD8+T细胞上的抑制剂,在晚期CRC中升高.
- IL8抑制了CD8+和TIM3+CD8+T细胞的功能和增殖,部分通过TIM3.
- 抗IL8和抗CXCR2抗体逆转了IL8的抑制作用.
结论:
- 巨细胞衍生的IL8通过CXCR2通路抑制CD8+T细胞上的TIM3表达.
- 针对IL8/CXCR2轴为高级CRC提供了潜在的治疗策略.
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