相关实验视频
Updated: Jan 10, 2026

06:07
Measuring Mitochondrial Function of Naïve and Effector CD8 T Cells
Published on: March 28, 2025
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由JAK抑制剂破坏代谢许可限制了CD8 T细胞激活和效应器功能
Luisina Inés Onofrio1, Carolina Abrate1, Ingrid Strusberg2
1Centro de Investigaciones en Bioquímica Clínica e Inmunología (CIBICI-CONICET), Facultad de Ciencias Químicas, Universidad Nacional de Córdoba (UNC), Córdoba, Argentina.
Research square
|November 24, 2025
概括
简氏激酶抑制剂 (JAKis) 通过破坏其新陈代谢和信号通路,损害CD8 T细胞功能. 这项研究解释了JAKis如何在患有自身免疫性疾病的患者中增加感染风险.
科学领域:
- 免疫学 免疫学 免疫学
- 细胞生物学 细胞生物学
- 药理学 药理学是指药理学的学科.
背景情况:
- 简氏激酶抑制剂 (JAKis) 对于治疗自身免疫性疾病至关重要.
- 使用JAKi与感染风险更高有关.
- 这种增加的敏感性背后的确切机制尚未完全理解,特别是关于CD8 T细胞的反应.
研究的目的:
- 研究JAKis对CD8T细胞的激活,代谢重编程和效应器功能的影响.
- 阐明JAKis影响CD8T细胞功能的分子机制.
- 为了验证接受JAKi治疗的患者的CD8 T细胞的发现.
主要方法:
- 在体外刺激原始和记忆CD8T细胞,使用巴里西提尼布,托法西提尼布和乌帕达西提尼布.
- 使用了流细胞计,SCENITH,传输电子显微镜和RNA-seq.
- 从接受JAKi治疗的类风湿性关节炎患者的CD8 T细胞的活体分析.
主要成果:
- 在CD8 T细胞中的代谢重编程中,JAK是未合的表型激活.
- 接受JAKi治疗的CD8T细胞显示激活,细胞因子产生和细胞毒性分子释放减少.
- 观察到葡萄糖吸收受损,GLUT1表达减少,以及转向线粒体依赖的转变,同时减少mTOR活性和增加p53信号传递.
结论:
- JAKis 破坏 CD8 T 细胞中的关键代谢和信号通路.
- 这些干扰导致CD8 T细胞功效器功能受损.
- 提供了JAKi治疗与患者感染风险增加之间的机制联系.
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