| Literature DB >> 17049622 |
Tatsuya Ohkawara1, Jun Nishihira, Yoh Ishiguro, Eiji Otsubo, Koichi Nagai, Hiroshi Takeda, Mototsugu Kato, Takashi Yoshiki, Toshihiko Iwanaga, Masahiro Asaka.
Abstract
Macrophage migration inhibitory factor plays an important role in inflammatory diseases. We investigated the role of macrophage migration inhibitory factor (MIF) in the development of dextran sulfate sodium (DSS)-induced colitis using MIF null ((-/-)) mice. MIF(-/-) mice given 3% DSS showed no clinical and histological feature of colitis in contrast to wild-type (WT) mice. Lack of MIF suppressed the up-regulation of TNF-alpha and IFN-gamma as Th1-derived cytokines, and increased the level of IL-4 as Th2-derived cytokine in the colon tissues. Moreover, we found that the expressions of heat shock protein (HSP)40 and HSP70 were markedly up-regulated in the colon of MIF(-/-) mice in response to DSS compared with WT mice. Additionally, quercetin, an inhibitor of HSP synthesis, inhibited the up-regulation of HSP40 and 70 expressions and developed DSS-induced colitis in MIF(-/-) mice. Our findings in this study provide more information in the role of MIF in colitis.Entities:
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Year: 2006 PMID： 17049622 DOI： 10.1016/j.imlet.2006.09.002
Source DB: PubMed Journal: Immunol Lett ISSN： 0165-2478 Impact factor: 3.685