Carbon monoxide protects against liver failure through nitric oxide-induced heme oxygenase 1.
Carbon monoxide protects against liver failure through nitric oxide-induced heme oxygenase 1.
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DOI:
10.1084/jem.20031003
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发表时间:
2003-12-01
期刊:
影响因子:
--
通讯作者:
Otterbein LE
中科院分区:
文献类型:
--
作者:
Zuckerbraun BS;Billiar TR;Otterbein SL;Kim PK;Liu F;Choi AM;Bach FH;Otterbein LE
Carbon monoxide (CO) and nitric oxide (NO) each have mechanistically unique roles in various inflammatory disorders. Although it is known that CO can induce production of NO and that NO can induce expression of the cytoprotective enzyme heme oxygenase 1 (HO-1), there is no information whether the protective effect of CO ever requires NO production or whether either gas must induce expression of HO-1 to exert its functional effects. Using in vitro and in vivo models of tumor necrosis factor α–induced hepatocyte cell death in mice, we find that activation of nuclear factor κB and increased expression of inducible NO are required for the protective effects of CO, whereas the protective effects of NO require up-regulation of HO-1 expression. When protection from cell death is initiated by CO, NO production and HO-1 activity are each required for the protective effect showing for the first time an essential synergy between these two molecules in tandem providing potent cytoprotection.
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