Induction of Heme Oxygenase-1 Inhibits Monocyte Chemoattractant Protein-1 mRNA Expression in U937 Cells

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...

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Vydáno v:Journal of Pharmacological Sciences Ročník 100; číslo 2; s. 162 - 166
Hlavní autoři: Shokawa, Tomoki, Yoshizumi, Masao, Yamamoto, Hideya, Omura, Shinji, Toyofuku, Mamoru, Shimizu, Yoshito, Imazu, Michinori, Kohno, Nobuoki
Médium: Journal Article
Jazyk:angličtina
Vydáno: Japan The Japanese Pharmacological Society 2006
Elsevier
Témata:
Chemokine CCL2 - antagonists & inhibitors
Chemokine CCL2 - genetics
Dose-Response Relationship, Drug
Enzyme Induction
Gene Expression Regulation - drug effects
Heme Oxygenase-1 - biosynthesis
Heme Oxygenase-1 - genetics
Humans
Lysophosphatidylcholines - pharmacology
Monocytes - cytology
Monocytes - drug effects
Reverse Transcriptase Polymerase Chain Reaction
RNA, Messenger - metabolism
RNA, Ribosomal, 18S - metabolism
Time Factors
U937 Cells
ISSN:1347-8613
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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.
AbstractList 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.
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.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.
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. Keywords:: heme oxygenase-1, oxidized low-density lipoprotein, monocyte chemoattractant protein-1
Author Tomoki Shokawa
Hideya Yamamoto
Yoshito Shimizu
Michinori Imazu
Shinji Omura
Nobuoki Kohno
Masao Yoshizumi
Mamoru Toyofuku
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  givenname: Masao
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CorporateAuthor Hiroshima University
Department of Biomedical Chemistry
Department of Molecular and Internal Medicine
Graduate School of Biomedical Sciences
Department of Cardiovascular Physiology and Medicine
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SubjectTerms Chemokine CCL2 - antagonists & inhibitors
Chemokine CCL2 - genetics
Dose-Response Relationship, Drug
Enzyme Induction
Gene Expression Regulation - drug effects
Heme Oxygenase-1 - biosynthesis
Heme Oxygenase-1 - genetics
Humans
Lysophosphatidylcholines - pharmacology
Monocytes - cytology
Monocytes - drug effects
Reverse Transcriptase Polymerase Chain Reaction
RNA, Messenger - metabolism
RNA, Ribosomal, 18S - metabolism
Time Factors
U937 Cells
Title Induction of Heme Oxygenase-1 Inhibits Monocyte Chemoattractant Protein-1 mRNA Expression in U937 Cells
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