生物
免疫系统
串扰
间质细胞
肠上皮
免疫学
炎症性肠病
炎症
肠粘膜
间充质干细胞
上皮
细胞生物学
癌症研究
疾病
病理
医学
内科学
遗传学
光学
物理
作者
William D. Rees,Laura M. Sly,Theodore S. Steiner
标识
DOI:10.1002/jlb.3mir0120-567r
摘要
Intestinal epithelial cells provide a front line of defense by establishing a barrier against food Ags, pathogens, and commensal microorganisms. This defense includes the establishment of a tolerogenic environment in the gastrointestinal (GI) tract. The intestinal epithelium replenishes itself by cell turnover every 4-5 days, and this process is facilitated by various pathways of communication between the intestinal epithelial cells (IECs), the underlying stromal cell network, and professional immune cells, which together help establish a proper intestinal stem cell (ISC) niche in the crypt. However, during a state of inflammation, such as in inflammatory bowel diseases (IBD), these communication pathways can be altered, and this can lead to the development of inflammatory IECs within the crypt that further drive inflammation. Here, we review the current literature looking at crosstalk between immune cells, stromal cells, and IECs: how does the immune system potentially alter the ISC niche, and how do IECs influence intestinal immunity? We discuss the latest research using single cell RNA sequencing and intestinal organoid cultures to help answer these questions. A better understanding of this complex crosstalk can help lead to a better understanding of intestinal biology in general, and more efficient therapeutic approaches to treat IBD.
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