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氧化酸化调节B细胞效应因子细胞因子,促进多发性硬化症的炎症
Rui Li1,2, Yanting Lei3, Ayman Rezk1
1Center for Neuroinflammation and Experimental Therapeutics and the Department of Neurology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA.
Science immunology
|May 3, 2024
概括
不调节的B细胞细胞因子生产推动了自身免疫性疾病. 针对代谢途径,特别是氧化酸化和腺三酸盐 (ATP) 信号,可以恢复B细胞平衡,并减少多发性硬化症 (MS) 等疾病中的神经炎症.
科学领域:
- 免疫学 免疫学 免疫学
- 代谢途径 代谢途径
- 神经炎症是一种神经炎症.
背景情况:
- 不调节的B细胞细胞因子生产与诸如多发性硬化症 (MS) 等免疫媒介疾病有关.
- 控制B细胞促炎 (GM-CSF) 和抗炎 (IL-10) 细胞因子分泌的精确机制仍然不完全理解.
研究的目的:
- 研究促炎和抗炎B细胞中细胞因子分泌的代谢调节.
- 探索氧化酸化 (OXPHOS) 和腺三酸盐 (ATP) 信号在B细胞反应中的作用.
- 评估针对自身免疫性疾病中这些代谢途径的治疗潜力.
主要方法:
- 在人类B细胞中,对促进炎症与抗炎症的代谢活性 (OXPHOS) 的比较分析.
- 研究OXPHOS和ATP对B细胞细胞因子配置的信号调制.
- 在神经炎症的临床前模型 (MOG诱导的EAE小鼠模型) 中评估部分OXPHOS或ATP信号抑制 (包括BTK抑制).
主要成果:
- 与抗炎性B细胞相比,促炎性B细胞对OXPHOS的要求更高.
- 通过ATP信号传递,OXPHOS通过ATP信号传递相互影响亲和抗炎B细胞细胞因子.
- 抑制OXPHOS或ATP信号传递促进抗炎B细胞表型,纠正MS患者的细胞因子失衡,并减少EAE模型中的神经炎症.
结论:
- 代谢调节,特别是OXPHOS和ATP信号传递,极大地影响了B细胞的亲和抗炎细胞因子平衡.
- 在调节B细胞反应时,ATP及其代谢物起到至关重要的"第四信号"的作用.
- 针对包括ATP信号在内的代谢途径,通过恢复B细胞细胞因子稳定,代表了对自身免疫性疾病的有希望的治疗策略.
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