{{'Search' | translate}}
 

Sonicator

超声波

Company: Heat systems
Catalog#: XL2010
Bio-protocol()
Company-protocol()
Other protocol()

Preparation of Protein-containing Extracts from Microbiota-rich Intestinal Contents
Author:
Date:
2016-09-20
[Abstract]  The contribution of microbiota in regulating multiple physiological and pathological host responses has been studied intensively in recent years. Evidence suggests that commensal microbiota can directly modulate different populations of cells of the immune system (e.g., Ivanov et al., 2008; Atarashi et al., 2011). Recently, we showed that protein extracts from gut commensal microbiota can activate retina-specific T cells, allowing these autoreactive T cells to then break through the blood-retinal barrier and trigger autoimmune uveitis in the recipient (Horai et al., 2015). The protocol below describes the method to prepare intestinal protein-rich extracts that can be used in various in vitro and in vivo immunological studies. [摘要]  近年来,微生物群在调节多种生理和病理宿主反应中的贡献已被深入研究。证据表明共生微生物群可以直接调节免疫系统的不同细胞群(例如,Ivanov等人,2008; Atarashi等人 >。,2011)。最近,我们显示来自消化道共生菌群的蛋白质提取物可以激活视网膜特异性T细胞,允许这些自身反应性T细胞突破血液 - 视网膜屏障并触发受体中的自身免疫性葡萄膜炎(Horai等人。,2015)。以下方案描述了可用于各种体外和体内免疫学研究的富含肠内蛋白质的提取物的制备方法。

< strong=""> [背景] 肠道菌群代表一个复杂的微生物群落,提供各种各样的先天和适应性刺激物。它们从粪便样品中分离和纯化已经进行并且已经公开了方案(Mueller和Pan,2013; Verberkmoes等人,2009; Tanca等人,2014; Xiong等人,2015a; Xiong等人,2015b)。大多数这些协议已经开发的目的是进行蛋白质组学研究以表征微生物群。因此,尽管它们强调蛋白质产量和纯度,但是它们是耗时的并且可以包括影响蛋白质结构的蛋白质变性步骤(Verberkmoes等人,2009)或使用试剂(例如,叠氮化钠,SDS,苯酚),其与随后的基于细胞培养的测定不相容(Tanca等人,2014; Xiong等人,2015a; Xiong ...

Comments