Carbon monoxide ameliorates chronic murine colitis through a heme oxygenase 1-dependent pathway.
Carbon monoxide ameliorates chronic murine colitis through a heme oxygenase 1-dependent pathway.
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DOI:
10.1084/jem.20051047
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发表时间:
2005-12-19
期刊:
影响因子:
--
通讯作者:
Plevy SE
中科院分区:
文献类型:
--
作者:
Hegazi RA;Rao KN;Mayle A;Sepulveda AR;Otterbein LE;Plevy SE
Heme oxygenase (HO)-1 and its metabolic product carbon monoxide (CO) play regulatory roles in acute inflammatory states. In this study, we demonstrate that CO administration is effective as a therapeutic modality in mice with established chronic colitis. CO administration ameliorates chronic intestinal inflammation in a T helper (Th)1-mediated model of murine colitis, interleukin (IL)-10–deficient (IL-10 −/−) mice. In Th1-mediated inflammation, CO abrogates the synergistic effect of interferon (IFN)-γ on lipopolysaccharide-induced IL-12 p40 in murine macrophages and alters IFN-γ signaling by inhibiting a member of the IFN regulatory factor (IRF) family of transcription factors, IRF-8. A specific signaling pathway, not previously identified, is delineated that involves an obligatory role for HO-1 induction in the protection afforded by CO. Moreover, CO antagonizes the inhibitory effect of IFN-γ on HO-1 expression in macrophages. In macrophages and in Th1-mediated colitis, pharmacologic induction of HO-1 recapitulates the immunosuppressive effects of CO. In conclusion, this study begins to elucidate potential etiologic and therapeutic implications of CO and the HO-1 pathway in chronic inflammatory bowel diseases.
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影响因子:
32.4
作者:
Oppmann, B;Lesley, R;Kastelein, RA
通讯作者:
Kastelein, RA
DOI:
10.1111/j.1432-1033.1997.00725.x
发表时间:
1997-07-15
期刊:
EUROPEAN JOURNAL OF BIOCHEMISTRY
影响因子:
--
作者:
McCoubrey, WK;Huang, TJ;Maines, MD
通讯作者:
Maines, MD
DOI:
10.1073/pnas.1431233100
发表时间:
2003-07-08
影响因子:
11.1
作者:
Farrugia, G;Lei, S;Szurszewski, JH
通讯作者:
Szurszewski, JH
影响因子:
29.4
作者:
Moore, BA;Otterbein, LE;Bauer, AJ
通讯作者:
Bauer, AJ
影响因子:
6
作者:
Nakao, A;Kimizuka, K;Murase, N
通讯作者:
Murase, N