Molecular mechanisms of wasting in experimental COPD

Funded Activity Summary

Chronic obstructive pulmonary disease (COPD) is a major global health problem and has been predicted to become the third largest cause of death in the world by 2020. Cigarette smoking is the major cause of COPD and accounts for more than 95% of cases in industrialized countries. Currently no therapies exist to halt the inevitable progression of the disease. To date most of the research has focused on the aspects of this disease which result in destruction of the lung however it is becoming increasingly evident that COPD is a disease of multiple organs. Until recently it had been widely believed that the profound loss of exercise tolerance observed in COPD patients was due to impaired gas exchange secondary to lung structural damage. Loss of lean body mass (muscle) is now recognised as a major co-morbidity of COPD and a direct cause of functional impairment with patients suffering marked deteriorations in quality of life, increased mortality, breathlessness and decreased exercise tolerance. Skeletal muscle wasting is a powerful predictor of mortality in COPD, independent of the lung function impairment. Despite the clinical seriousness of muscle wasting and suggestive evidence that it may be reversible, little is known about the pathogenic mechanisms. Therefore the goal of this project is to use experimental models of COPD to identify the molecular basis of wasting, in order to restore skeletal muscle homeostasis. The insights gained from this research proposal may lead to the identification of potentially novel targets for the prevention and reversal of the debilitating and life threatening effects of skeletal muscle wasting in COPD. For the COPD patient this has the potential to increase quality of life, functional ability and life expectancy.

Funded Activity Details

Start Date: 01-01-2007

End Date: 01-01-2009

Funding Scheme: NHMRC Project Grants

Funding Amount: $389,521.00

Funder: National Health and Medical Research Council

Research Topics

ANZSRC Field of Research (FoR)

Respiratory Diseases

ANZSRC Socio-Economic Objective (SEO)

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Other Keywords

chronic obstructive lung disease (COPD) | chronic obstructive pulmonary disease | inflammation | murine models | muscle wasting | skeletal muscle | skeletal muscle wasting | smoking | weight loss

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