PD-1抑制人类CD38+循环的Tfr细胞,并调节幽默免疫力
Heng Zhang1, Hui Zheng1, Yanchun Wang1
1Department of Clinical Laboratory, Fudan University Shanghai Cancer Center, Shanghai, China.
Journal for immunotherapy of cancer
|January 12, 2025
概括
抗PD-1疗法通过增加等离子体和毛囊T调节细胞来促进癌症患者的抗体产生. 这种免疫疗法调节宿主幽默免疫,影响抗体水平和免疫细胞功能.
科学领域:
- 免疫学 免疫学 免疫学
- 在瘤学瘤学.
- 癌症免疫疗法癌症免疫疗法
背景情况:
- 反编程细胞死亡蛋白1 (anti-PD-1) 抗体代表了癌症治疗的突破.
- 在癌症治疗期间,抗PD-1治疗对人类幽默免疫的具体影响仍然不完全理解.
研究的目的:
- 研究抗PD-1治疗对肝细胞癌 (HCC) 患者宿主幽默免疫力的影响.
- 阐明PD-1在调节参与幽默免疫反应的免疫细胞群中的作用.
主要方法:
- 使用ELISA测量免疫球蛋白标位.
- 多色流细胞测量用于分析健康捐赠者和HCC患者的免疫细胞景观 (预治疗和抗PD-1疗法).
- 活体细胞培养物用于增殖和功能测试.
主要成果:
- 在HCC患者中,抗PD-1疗法显著提高了外周IgG和IgA水平.
- 随着抗PD-1治疗,观察到血质细胞和循环T毛囊调节细胞 (cTfr) 的增加.
- 通过抗PD-1疗法促进的CD38+ cTfr细胞被发现可增强血细胞分化并影响抗体产生.
结论:
- PD-1通过限制人类cTfr细胞的分化和功能,发挥着关键的免疫调节作用.
- 抗PD-1疗法通过其对cTfr细胞群和抗体产生的影响影响幽默免疫.
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