| Literature DB >> 16474202 |
Tomoki Shokawa1, Masao Yoshizumi, Hideya Yamamoto, Shinji Omura, Mamoru Toyofuku, Yoshito Shimizu, Michinori Imazu, Nobuoki Kohno.
Abstract
Heme oxygenase-1 (HO-1) is a stress-inducible isoform of HO with potential cytoprotective effects. Monocyte activation/migration mediated by monocyte chemoattractant protein-1 (MCP-1) is one of the earliest and important events in the pathogenesis of atherosclerosis. We examined the effect of HO-1 on the production of lysophosphatidylcholine (Lyso-PC)-induced MCP-1 in the human promonocytic cell line U937. Increased HO-1 induction by hemin resulted in a significant decrease in the Lyso-PC-mediated induction of MCP-1 mRNA expression. SnPP (IX), the specific inhibitor of HO-1 enzymatic activity, prevented the hemin-mediated attenuation of MCP-1 mRNA expression. These results suggest that HO-1 may work as an anti-atherogenic agent through the attenuation of MCP-1 production.Entities:
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Year: 2006 PMID: 16474202 DOI: 10.1254/jphs.sc0040188
Source DB: PubMed Journal: J Pharmacol Sci ISSN: 1347-8613 Impact factor: 3.337