Co-Culture System of Human Enteroids/Colonoids with Innate Immune Cells.

Co-Culture System of Human Enteroids/Colonoids with Innate Immune Cells. Curr Protoc Immunol. 2020 Dec;131(1):e113 Authors: Staab JF, Lemme-Dumit JM, Latanich R, Pasetti MF, Zachos NC Abstract Human intestinal enteroids derived from adult stem cells offer a relevant ex vivo system to study biological processes of the human gut. They recreate cellular and functional features of the intestinal epithelium of the small intestine (enteroids) or colon (colonoids) albeit limited by the lack of associated cell types that help maintain tissue homeostasis and respond to external challenges. In the gut, innate immune cells interact with the epithelium, support barrier function, and deploy effector functions. We have established a co-culture system of enteroid/colonoid monolayers and underlying macrophages and polymorphonuclear neutrophils to recapitulate the cellular framework of the human intestinal epithelial niche. Enteroids are generated from biopsies or resected tissue from any segment of the human gut and maintained in long-term cultures as three-dimensional structures through supplementation of stem cell growth factors. Immune cells are isolated from fresh human whole blood or frozen peripheral blood mononuclear cells (PBMC). Monocytes from PBMC are differentiated into macrophages by cytokine stimulation prior to co-culture. The methods are divided into the two main components of the model: (1) generating enteroid/colonoid monolayers and...
Source: Current Protocols in Immunology - Category: Allergy & Immunology Tags: Curr Protoc Immunol Source Type: research