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However, most cellular experiments related to epithelial barrier studies in IBD have been based on tumor cell line that lack a variety of intestinal epithelial cell types. Thus, intestinal organoids can present the three-dimensional structure and better simulate the physiological structure and function of the intestinal epithelium in vitro. Here, the crypts were isolated from the small intestine of mice; with the participation of major cytokines (EGF, Noggin, and R-Spondin 1 included), the intestinal organoids were established at a density of 100 crypts per well, containing intestinal stem cells (ISC), Paneth cells, goblet cells, and intestinal endocrine cells. We found that tumor necrosis factor-alpha (TNF-\u03b1) could induce the inflammatory response of intestinal organoids, and a dose of 10\u2009ng\/mL could maintain stable passaging of organoids for dynamic observation. After stimulation with TNF-\u03b1, the intestinal organoid cultures showed lower expression of the cell proliferation-related protein identified by monoclonal antibody Ki 67 (Ki67), the ISC marker leucine-rich repeat-containing G protein-coupled receptor 5 (Lgr5), and the intestinal tight junction proteins occludin (Ocln) and claudin-1 (Cldn1) while higher expression of the inflammatory cytokine interleukin- (IL-) 15 and the chemokines C-X-C motif ligand 2 (Cxcl2) and Cxcl10 significantly. In this study, we successfully established an epithelial inflammatory injury model of intestinal organoids, which provides an effective in vitro model for studying the pathogenesis and treatment of IBD.<\/jats:p>","DOI":"10.1155\/2023\/3328655","type":"journal-article","created":{"date-parts":[[2023,3,7]],"date-time":"2023-03-07T13:50:14Z","timestamp":1678197014000},"page":"1-13","source":"Crossref","is-referenced-by-count":10,"title":["Establishment of Epithelial Inflammatory Injury Model Using Intestinal Organoid Cultures"],"prefix":"10.1155","volume":"2023","author":[{"given":"Chengfeng","family":"Xing","sequence":"first","affiliation":[{"name":"Department of Gastroenterology, The First People\u2019s Hospital of Yunnan Province, The Affiliated Hospital of Kunming University of Science and Technology, No. 157, Jingbi Road, Kunming 650032, Yunnan, China"},{"name":"Kunming Medical University, No. 1168, West Chunrong Road, Chenggong District, Kunming 650500, Yunnan, 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