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Nonclassical CD1d-restricted NK T cells that produce IL-13 characterize an atypical Th2 response in ulcerative colitis

Open access
Fuss, Ivan J., Heller, Frank, Boirivant, Monica, Leon, Francisco, Yoshida, Masaru, Fichtner-Feigl, Stefan, Yang, Zhiqiong, Exley, Mark, Kitani, Atsushi, Blumberg, Richard S., Mannon, Peter, Strober, Warren·2004·Journal of Clinical Investigation

Abstract

While Crohn disease (CD) has been clearly identified as a Th1 inflammation, the immunopathogenesis of its counterpart inflammatory bowel disease, ulcerative colitis (UC), remains enigmatic. Here we show that lamina propria T (LPT) cells from UC patients produce significantly greater amounts of IL-13 (and IL-5) than control cells and little IFN-gamma, whereas comparable cells from CD patients produce large amounts of IFN-gamma and small amounts of IL-13. We then show that stimulation of UC LPT cells bearing an NK marker (CD161) with anti-CD2/anti-CD28 or with B cells expressing transfected CD1d induces substantial IL-13 production. While this provided firm evidence that the IL-13-producing cell is an NK T (NKT) cell, it became clear that this cell does not express invariant NKT cell receptors characteristic of most NKT cells since there was no increase in cells binding alpha-galactosylceramide-loaded tetramers, and alpha-galactosylceramide did not induce IL-13 secretion. Finally, we show that both human NKT cell lines as well as UC CD161(+) LPT cells are cytotoxic for HT-29 epithelial cells and that this cytotoxicity is augmented by IL-13. These studies show that UC is associated with an atypical Th2 response mediated by nonclassical NKT cells producing IL-13 and having cytotoxic potential for epithelial cells.

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Authors
Fuss, I. J., Heller, F., Boirivant, M., Leon, F., Yoshida, M., Fichtner-Feigl, S., Yang, Z., Exley, M., Kitani, A., Blumberg, R. S., Mannon, P., & Strober, W.
Venue
Journal of Clinical Investigation
Published
2004-05-15
Volume
113
Issue
10
Pages
1490-1497
ISSN
0021-9738 (ISSN-L)
OpenAlex
W2077417036
Cited by
797
References
0
FWCI
21.05
Type
journal article
Language
en
Open access
bronze

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