患者衍生的单克隆髓寡聚细胞 葡萄糖蛋白自身抗体 中等细胞毒性
Nora Sandrine Wetzel1,2, Laila Kulsvehagen1, Anne-Catherine Lecourt1
1Departments of Neurology, Biomedicine and Clinical Research, and Research Center for Clinical Neuroimmunology and Neuroscience Basel (RC2NB), University Hospital Basel and University of Basel, Switzerland.
Neurology(R) neuroimmunology & neuroinflammation
|December 17, 2025
概括
研究人员产生了患者衍生的单克隆抗体,对抗髓寡细胞糖蛋白 (MOG),以研究MOG抗体相关疾病 (MOGAD). 这些抗体表现出多样化的致病潜力,有助于未来的MOGAD研究和治疗.
科学领域:
- 神经免疫学 神经免疫学
- 这是一种自身免疫力.
- 抗体工程 抗体工程
背景情况:
- 髓寡基细胞糖蛋白 (MOG) 抗体是MOG抗体相关疾病 (MOGAD) 的关键标志物.
- 患者衍生MOG自身抗体的有限可用性阻碍了对MOGAD病原和治疗开发的理解.
研究的目的:
- 从MOGAD患者中产生和表征单克隆抗hMOG抗体 (MOG-mAbs).
- 研究这些自身抗体的分子机制和致病潜力.
主要方法:
- 从6名MOGAD患者中分离出MOG特定的B细胞受体序列.
- 将序列表达为IgG1抗体,并分析分子特征和表位特异性.
- 评估了抗体介导的细胞细胞毒性 (ADCP,ADCC,CDC) 对表达MOG的细胞.
主要成果:
- 产生了15个MOG-mAbs;4个显示了亲和力成熟,11个是生殖系编码的.
- 观察到与hMOG结合的变量,具有包括P42在内的共同表位区域.
- 在调解细胞细胞毒性方面表现出异质的有效性,与结合特征相关.
结论:
- 来自患者的MOG-mAbs显示了多样化的分子形状和体外致病能力.
- 这些抗体为开发MOGAD体内模型和诊断工具提供了基础.
- 具有特征的自身抗体可以指导MOGAD向治疗的开发.
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