Abstract:
BACKGROUND & AIMS:Nuclear factor of activated T cells transcription factors plays a central role in immunity by regulating the expression of multiple cytokines and other regulatory molecules, many of which have been heavily implicated in the pathogenesis of inflammatory bowel disease. However, few studies have directly investigated the nuclear factor of activated T cells proteins in inflammatory bowel disease. We describe here a specific role for nuclear factor of activated T cells c2 in the pathogenesis of murine inflammatory bowel disease. METHODS:Mice deficient for nuclear factor of activated T cells c2, recombinase activating gene-2, or both and transgenic or nontransgenic for an anti-ovalbumin T-cell receptor or an anti-hen egg lysozyme B-cell receptor were studied. Adoptive transfers were performed of T or B cells or both from nuclear factor of activated T cells c2-deficient mice into nuclear factor of activated T cells c2-deficient recombinase activating gene-deficient animals, in the presence or absence of antibodies that neutralize interleukin-10 activity. RESULTS:Nuclear factor of activated T cells c2-deficient, recombinase activating gene-deficient animals spontaneously developed a severe inflammatory bowel syndrome that resembled ulcerative colitis but was composed entirely of nonlymphocytes. The disease was suppressed by the adoptive transfer of polyclonal B-cell populations, even on neutralization of interleukin-10, but not by the presence of monoclonal T or B cells. CONCLUSIONS:Nuclear factor of activated T cells plays a critical role in the regulation of bowel inflammation by nonlymphoid immune cells, and B cells suppress bowel inflammation by innate immune cells. Such findings indicate a novel, interleukin-10-independent role for nuclear factor of activated T cells in the regulation of innate immunity and in intestinal immune tolerance.
journal_name
Gastroenterologyjournal_title
Gastroenterologyauthors
Gerth AJ,Lin L,Neurath MF,Glimcher LH,Peng SLdoi
10.1053/j.gastro.2004.01.013keywords:
subject
Has Abstractpub_date
2004-04-01 00:00:00pages
1115-21issue
4eissn
0016-5085issn
1528-0012pii
S0016508504000332journal_volume
126pub_type
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