Role of Heme Oxygenase in Inflammation, Insulin-Signalling, Diabetes and Obesity

Diabetes and obesity are chronic conditions associated with elevated oxidative/inflammatory activities with a continuum of tissue insults leading to more severe cardiometabolic and renal complications including myocardial infarction and end-stage-renal damage. A common denominator of these chronic c...

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Main Author: Joseph Fomusi Ndisang
Format: Article
Language:English
Published: Wiley 2010-01-01
Series:Mediators of Inflammation
Online Access:http://dx.doi.org/10.1155/2010/359732
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author Joseph Fomusi Ndisang
author_facet Joseph Fomusi Ndisang
author_sort Joseph Fomusi Ndisang
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description Diabetes and obesity are chronic conditions associated with elevated oxidative/inflammatory activities with a continuum of tissue insults leading to more severe cardiometabolic and renal complications including myocardial infarction and end-stage-renal damage. A common denominator of these chronic conditions is the enhanced the levels of cytokines like tumour necrosis factor-alpha (TNF-α), interleukin (IL-6), IL-1β and resistin, which in turn activates the c-Jun-N-terminal kinase (JNK) and NF-κB pathways, creating a vicious cycle that exacerbates insulin resistance, type-2 diabetes and related complications. Emerging evidence indicates that heme oxygenase (HO) inducers are endowed with potent anti-diabetic and insulin sensitizing effects besides their ability to suppress immune/inflammatory response. Importantly, the HO system abates inflammation through several mechanisms including the suppression of macrophage-infiltration and abrogation of oxidative/inflammatory transcription factors like NF-κB, JNK and activating protein-1. This review highlights the mechanisms by which the HO system potentiates insulin signalling, with particular emphasis on HO-mediated suppression of oxidative and inflammatory insults. The HO system could be explored in the search for novel remedies against cardiometabolic diseases and their complications.
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spelling doaj-art-6358b5550f774ec4bda50860862837fd2025-02-03T01:01:33ZengWileyMediators of Inflammation0962-93511466-18612010-01-01201010.1155/2010/359732359732Role of Heme Oxygenase in Inflammation, Insulin-Signalling, Diabetes and ObesityJoseph Fomusi Ndisang0Department of Physiology, College of Medicine, University of Saskatchewan, 107 Wiggins Road, Saskatoon, SK, S7N 5E5, CanadaDiabetes and obesity are chronic conditions associated with elevated oxidative/inflammatory activities with a continuum of tissue insults leading to more severe cardiometabolic and renal complications including myocardial infarction and end-stage-renal damage. A common denominator of these chronic conditions is the enhanced the levels of cytokines like tumour necrosis factor-alpha (TNF-α), interleukin (IL-6), IL-1β and resistin, which in turn activates the c-Jun-N-terminal kinase (JNK) and NF-κB pathways, creating a vicious cycle that exacerbates insulin resistance, type-2 diabetes and related complications. Emerging evidence indicates that heme oxygenase (HO) inducers are endowed with potent anti-diabetic and insulin sensitizing effects besides their ability to suppress immune/inflammatory response. Importantly, the HO system abates inflammation through several mechanisms including the suppression of macrophage-infiltration and abrogation of oxidative/inflammatory transcription factors like NF-κB, JNK and activating protein-1. This review highlights the mechanisms by which the HO system potentiates insulin signalling, with particular emphasis on HO-mediated suppression of oxidative and inflammatory insults. The HO system could be explored in the search for novel remedies against cardiometabolic diseases and their complications.http://dx.doi.org/10.1155/2010/359732
spellingShingle Joseph Fomusi Ndisang
Role of Heme Oxygenase in Inflammation, Insulin-Signalling, Diabetes and Obesity
Mediators of Inflammation
title Role of Heme Oxygenase in Inflammation, Insulin-Signalling, Diabetes and Obesity
title_full Role of Heme Oxygenase in Inflammation, Insulin-Signalling, Diabetes and Obesity
title_fullStr Role of Heme Oxygenase in Inflammation, Insulin-Signalling, Diabetes and Obesity
title_full_unstemmed Role of Heme Oxygenase in Inflammation, Insulin-Signalling, Diabetes and Obesity
title_short Role of Heme Oxygenase in Inflammation, Insulin-Signalling, Diabetes and Obesity
title_sort role of heme oxygenase in inflammation insulin signalling diabetes and obesity
url http://dx.doi.org/10.1155/2010/359732
work_keys_str_mv AT josephfomusindisang roleofhemeoxygenaseininflammationinsulinsignallingdiabetesandobesity