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IgA Function in Relation to the Intestinal Microbiota

机译:IgA与肠道微生物群相关的功能

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IgA is the dominant immunoglobulin isotype produced in mammals, largely secreted across the intestinal mucosal surface. Although induction of IgA has been a hallmark feature of microbiota colonization following colonization in germ-free animals, until recently appreciation of the function of IgA in host-microbial mutualism has depended mainly on indirect evidence of alterations in microbiota composition or penetration of microbes in the absence of somatic mutations in IgA (or compensatory IgM). Highly parallel sequencing techniques that enable high-resolution analysis of either microbial consortia or IgA sequence diversity are now giving us new perspectives on selective targeting of microbial taxa and the trajectory of IgA diversification according to induction mechanisms, between different individuals and over time. The prospects are to link the range of diversified IgA clonotypes to specific antigenic functions in modulating the microbiota composition, position and metabolism to ensure host mutualism.
机译:IgA是在哺乳动物中产生的主要免疫球蛋白同种型,在很大程度上在肠粘膜表面上分泌。虽然IgA诱导在无菌动物中殖民化后是微生物群殖民化的标志性的特征,但最近升值IgA在宿主微生物互动中的函数主要取决于微生物群组成或微生物渗透的间接证据IgA(或补偿IgM)中的体细胞突变。高分辨率测序技术,可实现微生物分量或IGA序列多样性的高分辨率分析现在对微生物分类群的选择性靶向和IGA多样化的选择性靶向的新视角,根据诱导机制,在不同的个体之间,随着时间的推移。前景是将多元化IgA Clonotypes的范围与特异性抗原功能联系在调节微生物群组合物,位置和代谢以确保宿主共同主义中的特异性抗原功能。

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