同位体微生物群和髓自身抗原合作触发自身免疫性脱髓化
Kerstin Berer1, Marsilius Mues, Michail Koutrolos
1Department of Neuroimmunology, Max Planck Institute of Neurobiology, 82152 Martinsried, Germany.
Nature
|October 28, 2011
概括
在小鼠模型中,肠道微生物组,而不是感染,引发了自身免疫性疾病. 结合性肠道菌群和髓寡基细胞糖蛋白对于激活髓特异性T细胞和B细胞至关重要,导致实验性自身免疫脑膜炎.
科学领域:
- 神经免疫学 神经免疫学
- 微生物组研究的研究.
- 自免疫性疾病的发病因子自免疫性疾病的发病因子.
背景情况:
- 多发性硬化症 (MS) 涉及T和B淋巴细胞攻击大脑白质.
- 致病性免疫细胞来源于正常免疫组件,这些组件会变得自攻击性.
- 环境因素,特别是微生物感染,被认为是引发自身免疫转换的原因.
研究的目的:
- 为了研究开始性肠道菌群在引发自身免疫性疾病中的作用.
- 阐明在实验性自身免疫脑膜炎 (EAE) 中自反应性T细胞和B细胞激活的基础机制.
- 确定器官特异性自身免疫性疾病的潜在治疗点.
主要方法:
- 使用复发性缓解性自发性实验性自身免疫脑炎 (EAE) 的小鼠模型.
- 研究了在没有病原体的情况下开始性肠道微生物群的影响.
- 评估了髓寡细胞糖蛋白 (MOG) 和肠道微生物群在免疫细胞激活中的作用.
主要成果:
- 独立于病原体的肠道菌群对启动EAE的免疫过程至关重要.
- 疾病的发展是由髓特异性CD4 (((+) T细胞驱动的.
- 自抗体生成B细胞的招募和激活取决于MOG的可用性和肠道微生物群.
结论:
- 开始性肠道微生物群在触发器官特异性自身免疫性疾病方面发挥着关键作用.
- 涉及肠道菌群,MOG和免疫细胞的特定事件序列启动了自身免疫反应.
- 这些发现为MS等自身免疫性疾病提供了新的治疗点.
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