素诱导与过敏相关的先天性免疫细胞在组织中积累
Tiffany A Reese1, Hong-Erh Liang, Andrew M Tager
1Howard Hughes Medical Institute, Departments of Medicine and Microbiology/Immunology, University of California San Francisco, San Francisco, California 94143-0795, USA.
Nature
|April 24, 2007
概括
,一种在真菌和昆虫中发现的生物聚合物,触发免疫细胞在组织中的积累,模仿过敏反应. 一种特定的酶AMCase可以阻止这种素诱导的免疫激活.
科学领域:
- 免疫学 免疫学 免疫学
- 生物化学 生物化学
背景情况:
- 过敏和寄生虫虫免疫包括特定的免疫细胞透和替代激活的巨细胞.
- 这些宿主反应的触发因素尚不清楚.
- 是一种生物聚合物,存在于各种生物体,如真菌和昆虫中.
研究的目的:
- 调查基在触发先天性免疫反应中的作用.
- 为了确定调节基诱导免疫细胞积累的因素.
主要方法:
- 向小鼠注射基,并观察组织免疫细胞的透.
- 对托尔类受体参与的评估.
- 用AMCase治疗基或使用AMCase过度表达的小鼠.
- 对巨细胞激活和白血B4生产的分析.
主要成果:
- 素诱导了IL-4表达的先天性免疫细胞的积累,包括乙氨基和基氨基.
- 这种基介导的透是独立于Toll-like受体的识别.
- 用AMCase进行预治疗或AMCase过度表达阻止了基诱导的免疫细胞招募.
- 素促进了替代性巨细胞激活和白血素B4的产生,这对于免疫细胞招募至关重要.
结论:
- 素作为一种识别元素,用于与过敏和虫免疫有关的天生的免疫细胞的组织透.
- 脊椎动物胆酶,AMCase,对这种胆诱导的免疫过程进行负面调节.
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