p38信号增强了短命的效应细胞分化,并削弱了中央记忆中的CD8+T细胞形成
Lichen Hu1, Huaipeng Lin1, Yubing Fu1
1State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Faculty of Medicine and Life Sciences, Xiamen University, Xiamen, China.
Journal of immunology (Baltimore, Md. : 1950)
|October 10, 2025
概括
p38 MAPK信号控制CD8+T细胞的分化. 抑制p38促进记忆CD8+T细胞的形成,并增强回忆反应,表明治疗潜力.
科学领域:
- 免疫学 免疫学 免疫学
- 细胞生物学 细胞生物学
- 分子信号传输的方法
背景情况:
- 记忆CD8+ T细胞对于长期免疫是至关重要的.
- 对于p38 MAPK通路在CD8+ T细胞分化中的作用尚不完全了解.
- 平衡效应因子和记忆细胞的形成是有效免疫反应的关键.
研究的目的:
- 研究p38α和p38β在CD8+T细胞分化和记忆形成中的作用.
- 确定p38缺乏对T细胞响应在初级和二级感染期间的影响.
- 探索在采用细胞疗法中准p38通路的治疗潜力.
主要方法:
- 利用p38αfl/flp38βfl/flGzmBcre/-小鼠进行p38α和p38β在CD8+T细胞中的条件删除.
- 在抗原特异性CD8+T细胞上进行了转录基因分析.
- 在体内和体外评估T细胞发育,分化和召回反应.
- 评估了通过收养转移的T细胞的持久性和功能.
主要成果:
- 删除p38α/β对胸膜和外围T细胞发育的影响最小.
- 缺乏p38α/β CD8+ T细胞的p38α/β CD8+ T细胞表现出一种中央记忆表型和增强的回忆反应.
- 转录组分析显示,p38缺乏细胞中的效应基因表达减少和增强的记忆程序.
- 在采用转移时,体外分化的p38α/β缺乏的CD8+ T细胞表现出优异的持久性和功能.
结论:
- p38 MAPK信号传递是 CD8+ T 细胞分化和记忆形成的关键调节器.
- 准p38通路可以增强功能记忆CD8+T细胞的生成.
- 抑制p38可能是改善采用细胞疗法和长期免疫力的有希望的治疗策略.
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