Interleukin-2 Receptor Alpha and Beta Chain Expression by Circulating Alpha Beta and Gamma Delta T Cells in Inflammatory Bowel Disease
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The pathogenetic role of activated alpha beta and gamma delta T cells in inflammatory bowel disease (IBD) is not well defined. To elucidate this, interleukin-2 receptor (IL-2R) alpha and IL-2R beta single chain expression and coexpression by peripheral blood TCR alpha beta + cells and TCR gamma delta + cells was studied in 21 patients with ulcerative colitis (UC), 25 with Crohn's disease (CD), and 15 controls. The percentages of IL-2R alpha + beta-, IL-2R alpha-beta +, and IL-2R alpha + beta + TCR alpha beta + cells were increased in IBD patients with moderate and severe disease activity, as compared to controls (P < 0.01). In contrast, the percentages of IL-2R alpha-beta + and IL-2R alpha + beta + TCR gamma delta + cells were increased in patients with inactive UC (P < 0.01), but not in CD. The results suggest that activated alpha beta T cells are involved in the development of IBD. The differences in gamma delta T cell IL-2R expression between inactive UC and CD may correspond to a yet undefined etiopathogenetic difference between these two diseases.
Microscopic enteritis: Bucharest consensus.
Rostami K, Aldulaimi D, Holmes G, Johnson M, Robert M, Srivastava A World J Gastroenterol. 2015; 21(9):2593-604.
PMID: 25759526 PMC: 4351208. DOI: 10.3748/wjg.v21.i9.2593.
Yao C, Hirata T, Soontrapa K, Ma X, Takemori H, Narumiya S Nat Commun. 2013; 4:1685.
PMID: 23575689 PMC: 3644078. DOI: 10.1038/ncomms2684.
Shiobara N, Suzuki Y, Aoki H, Gotoh A, Fujii Y, Hamada Y Clin Exp Immunol. 2007; 150(1):13-21.
PMID: 17614973 PMC: 2219284. DOI: 10.1111/j.1365-2249.2007.03443.x.
Meenan J, Spaans J, Grool T, Pals S, Tytgat G, van Deventer S Gut. 1997; 40(2):241-6.
PMID: 9071939 PMC: 1027056. DOI: 10.1136/gut.40.2.241.
Expression of common gamma chain on peripheral blood mononuclear cells in Crohn's disease.
Kirman I, Nielsen O Dig Dis Sci. 1997; 42(2):372-7.
PMID: 9052522 DOI: 10.1023/a:1018830305728.