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在复发性复发性多发性硬化症中的CD11c+ B细胞和抗CD20疗法的效果
Sahla El Mahdaoui1, Marie Mathilde Hansen1, Marina Rode von Essen1
1Department of Neurology, Danish Multiple Sclerosis Center, Copenhagen University Hospital - Rigshospitalet, Glostrup, 2600, Denmark.
Annals of clinical and translational neurology
|February 9, 2024
概括
在多发性硬化症患者的抗CD20治疗后,不典型的B细胞 (CD11c+) 和血质细胞持续存在. 这些B细胞表现出双重的促炎和调节功能,这表明它们在自身免疫中起着复杂的作用.
科学领域:
- 免疫学 免疫学 免疫学
- 神经免疫学 神经免疫学
- 这是一种自身免疫力.
背景情况:
- 在多发性硬化症 (MS) 发病过程中,B细胞起着至关重要的作用.
- 非典型的B细胞被认为是MS自身免疫的潜在调解者.
- 了解B细胞子集在MS中的参与对于向治疗至关重要.
研究的目的:
- 为了研究健康对照组和未经治疗的多发性硬化症和抗CD20治疗的多发性硬化症患者之间B细胞子集的差异.
- 描述MS中CD11c+非典型B细胞的表型和效应体功能.
- 评估抗CD20治疗对MSB细胞群的影响.
主要方法:
- 为探索和验证队伍招募了155名参与者.
- 收集了外周血液和脑脊液样本.
- 利用流细胞计分析B细胞表型和效应器功能,专注于CD11c+非典型B细胞.
主要成果:
- 在对照组和未经治疗的多发性硬化症患者之间,没有发现循环B细胞的显著差异.
- 用抗CD20治疗的多发性硬化症患者的B细胞数量明显减少,剩余B细胞中CD11c+B细胞和血质细胞的比例更高.
- 与对照组和未经治疗的多发性硬化患者的周围血液相比,CD11c+B细胞在脑脊液中扩大.
- 脑脊液中CD11c+B细胞的比例在对照组和后抗CD20疗法中与未经治疗的MS患者相比,出乎意料地更高.
- 抗CD20治疗后脑脊髓液B细胞组成,不包括血清细胞,类似于对照组.
- CD11c+B细胞表现出促进炎症和调节性细胞因子生产的潜力.
结论:
- 在MS患者中,CD11c+B细胞和血细胞在抗CD20疗法下不能有效地被耗尽.
- CD11c+B细胞代表了具有异质表型和功能特征的独特B细胞子集.
- 这些CD11c+B细胞具有促进炎症和调节功能的能力,表明在MS病变发生过程中具有复杂的作用.
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