食小麦氨酶辛抑制剂在实验性多发性硬化症中加剧中枢神经系统炎症
Victor F Zevallos1,2, Nir Yogev3,4, Judith Hauptmann3,5
1Institute of Translational Immunology, Johannes Gutenberg Universitat Mainz, Mainz, Germany.
Gut
|August 18, 2023
概括
小麦氨酸素抑制剂 (ATI) 通过激活肠道和大脑中的免疫细胞来恶化多发性硬化症 (MS) 模型. 饮食中的ATI会加剧炎症,突出显示肠-大脑轴在中枢神经系统疾病中的作用.
科学领域:
- 免疫学 免疫学 免疫学
- 神经科学是一个神经科学.
- 胃肠病学 胃肠病学
背景情况:
- 小麦氨酸素抑制剂 (ATI) 是小麦中发现的促炎性蛋白质.
- 4.ATI通过类似收费的受体激活髓状细胞.
- 多发性硬化症 (MS) 是中枢神经系统 (CNS) 的一种慢性炎症性疾病.
研究的目的:
- 为了研究饮食ATI对实验性自身免疫脑炎 (EAE) 的影响,MS的小鼠模型.
- 为了确定ATI是否会加剧中枢神经系统炎症和EAE中的临床症状.
- 探索肠-大脑轴在ATI诱导的炎症中的作用.
主要方法:
- 在食不同质和ATI含量的小鼠中诱导EAE.
- 评估了临床EAE严重程度.
- 分析了肠道,淋巴结,脏和中枢神经系统中的免疫细胞群 (骨髓细胞,淋巴细胞).
- 来自MS患者和对照者的外周血液单核细胞的激活情况进行了比较.
主要成果:
- 饮食ATI剂量依赖增加了EAE临床得分.
- 在肠道,淋巴结,脏和中枢神经系统中观察到益炎性髓状细胞和T淋巴细胞的数量增加和激活.
- 从MS患者和健康对照组中,ATI激活了单细胞.
结论:
- 食小麦ATI激活小鼠和人类的髓状细胞.
- 典型的基于小麦的饮食中的ATI可以引起轻度肠道炎症,后者传播到中枢神经系统,恶化EAE.
- 这些发现强调了肠-大脑轴在中枢神经系统炎症性疾病 (如MS) 中的重要性.
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