RRC ID 71096
Author Hsu CC, Okumura R, Motooka D, Sasaki R, Nakamura S, Iida T, Takeda K.
Title Alleviation of colonic inflammation by Lypd8 in a mouse model of inflammatory bowel disease.
Journal Int Immunol
Abstract Dysfunction of the intestinal mucosal barrier causes inflammatory bowel diseases (IBDs). Indeed, mucosal barrier impairment in the gut of IBD patients results from decreased expression of barrier molecules. Ly6/Plaur domain containing 8 (Lypd8) segregates microbiota from the colonic epithelial layer. In this study, we found that Lypd8-/- mice, in which flagellated bacteria invaded the mucosal surface of the colon, developed spontaneous colitis when dysbiosis was induced by a high-fat diet (HFD). On the basis of this finding, we assessed whether the application of human LYPD8 (hLYPD8) protein exhibiting the glycan-dependent inhibition of bacterial motility is effective in a colitis model. Oral and anal treatments with hLYPD8 protein ameliorate dextran sulfate sodium-induced colitis and HFD-induced colitis in Lypd8-/- mice. These results indicate a therapeutic potential of hLYPD8 protein supplementation for IBD.
Volume 33(7)
Pages 359-372
Published 2021-6-18
DOI 10.1093/intimm/dxab012
PII 6211059
PMID 33822948
MeSH Animals Colitis / chemically induced Colitis / metabolism Colon / metabolism* Dextran Sulfate / pharmacology Diet, High-Fat Disease Models, Animal Dysbiosis / chemically induced Dysbiosis / metabolism Female GPI-Linked Proteins / metabolism* Gastrointestinal Microbiome / physiology Humans Inflammation / chemically induced Inflammation / metabolism* Inflammatory Bowel Diseases / chemically induced Inflammatory Bowel Diseases / metabolism* Intestinal Mucosa / metabolism Mice Mice, Inbred C57BL
Resource
General Microbes JCM1649