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Involvement of Lymphocytes in Dextran Sulfate Sodium-induced Experimental Colitis

Overview
Journal World J Gastroenterol
Publisher Baishideng Publishing Group
Specialty Gastroenterology
Date 2006 Feb 17
PMID 16482634
Citations 40
Authors
Tae Woon Kim
Jae Nam Seo
Young Ho Suh
Hyo Jin Park
Ju Hyun Kim
Ji Young Kim
Kwon Ik Oh
Affiliations
Soon will be listed here.
Abstract

Aim: To investigate the roles of lymphocytes in the development of dextran sulfate sodium-induced colitis.

Methods: Using various doses of dextran sulfate sodium (DSS), we induced colitis in wild-type B6 control and Rag-1 knockout (H-2b haplotype) mice, and evaluated the colitis in terms of symptomatic and histologic parameters, such as weight loss, survival, severity of diarrhea, shortage of colon length and histological changes. Symptomatic parameters were checked daily and histological changes were scored.

Results: Although development of colitis in Rag-1 knockout mice treated with high dose (5%) of DSS was comparable to that in B6 control mice, colitis progression was much more tolerable in Rag-1 knockout mice compared to than in B6 mice treated with low dose (1.5%) DSS. Symptomatic parameters as well as histopathologic changes were improved in Rag-1 knockout mice.

Conclusion: These results indicate that the presence of lymphocytes contributes to colitis progression at low dose of DSS stimulation. Lymphocytes may play roles as an aggravating factor in DSS-induced colitis.

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