title: RIP3 deficiency exacerbates inflammation in dextran sodium sulfate-induced ulcerative colitis mice model.
abstract: Ulcerative colitis (UC) is a chronic intestinal inflammatory disease. The receptor-interacting protein kinase 3 (RIP3) was reported to be involved in many inflammatory disease. However, the mechanism of RIP3 in the pathogenesis of UC is still unclear. To investigate the effects and possible mechanism of RIP3 in UC pathogenesis, RIP3-/- mice was used in dextran sulfate sodium (DSS)-induced colitis model. It was found that by DSS-induced colitis, RIP3-/- mice showed significantly enhanced colitis symptoms, including increased weight loss, colon shortening, and colonic mucosa damage and severity, but decreased production of interleukin 6 and interleukin 1β. The results showed that RIP3 deficiency could not ameliorate but exacerbate the severity of colitis. On the mechanism, it was found that messenger RNA expressions of several repair-associated cytokines including interleukin 6, interleukin 22, cyclooxygenase 2, epithelial growth factor receptor ligand Epiregulin and matrix metalloproteinase 10 were siginificant decreased in RIP3-/- mice. Thus, RIP3-/- mice exhibited an impaired tissue repair in response to DSS. In a conclusion, RIP3 deficiency exerted detrimental effects in DSS induced colitis partially because of the impaired repair-associated cytokines expression.
authors.affiliation: Department of Microbiology, Shanghai Key Laboratory of Medical Biodefense, Second Military Medical University, Shanghai, China.
authors.forename: Yu-Lin
authors.initials: YL
authors.lastname: Xu
authors.affiliation: Department of Microbiology, Shanghai Key Laboratory of Medical Biodefense, Second Military Medical University, Shanghai, China.
authors.forename: Hai-Lin
authors.initials: HL
authors.lastname: Tang
authors.affiliation: Department of Microbiology, Shanghai Key Laboratory of Medical Biodefense, Second Military Medical University, Shanghai, China.
authors.forename: Shi-Ying
authors.initials: SY
authors.lastname: Zhu
authors.affiliation: Department of Microbiology, Shanghai Key Laboratory of Medical Biodefense, Second Military Medical University, Shanghai, China.
authors.forename: Hao-Ran
authors.initials: HR
authors.lastname: Peng
authors.affiliation: Department of Microbiology, Shanghai Key Laboratory of Medical Biodefense, Second Military Medical University, Shanghai, China.
authors.forename: Zhong-Tian
authors.initials: ZT
authors.lastname: Qi
authors.affiliation: Department of Microbiology, Shanghai Key Laboratory of Medical Biodefense, Second Military Medical University, Shanghai, China.
authors.forename: Wen
authors.identifier: http://orcid.org/0000-0003-0223-8437
authors.initials: W
authors.lastname: Wang
mesh_terms: D000818:Animals; D003093:Colitis, Ulcerative / Q000139:chemically induced / Q000150:complications* / Q000378:metabolism / Q000473:pathology; D016207:Cytokines / Q000235:genetics / Q000378:metabolism*; D016264:Dextran Sulfate / Q000633:toxicity*; D004195:Disease Models, Animal; D007249:Inflammation / Q000209:etiology* / Q000378:metabolism / Q000473:pathology; D008297:Male; D051379:Mice; D008810:Mice, Inbred C57BL; D018345:Mice, Knockout; D053422:Receptor-Interacting Protein Serine-Threonine Kinases / Q000502:physiology*; D012720:Severity of Illness Index
chemical_list: D016207:Cytokines; D016264:Dextran Sulfate; D053422:Receptor-Interacting Protein Serine-Threonine Kinases; C485615:Ripk3 protein, mouse
keywords: DSS; RIP3; colitis; knockout; necrosis