Matrix metalloproteinase-9/gelatinase B is a putative therapeutic target of chronic obstructive pulmonary disease and multiple sclerosis

Matrix metalloproteinases (MMPs) are a large family of proteolytic enzymes involved in an array of physiological and pathological processes from development, morphogenesis, reproduction, wound healing, and aging to inflammation, angiogenesis, neurological disorders, and cancer cell invasion and meta...

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Bibliographic Details
Published in:	Current pharmaceutical biotechnology Vol. 9; no. 1; p. 34
Main Authors:	Muroski, M E, Roycik, M D, Newcomer, R G, Van den Steen, P E, Opdenakker, G, Monroe, H R, Sahab, Z J, Sang, Q-X
Format:	Journal Article
Language:	English
Published:	Netherlands 01-02-2008
Subjects:	Animals Drug Delivery Systems - methods Humans Matrix Metalloproteinase 9 - metabolism Matrix Metalloproteinase Inhibitors Multiple Sclerosis - drug therapy Multiple Sclerosis - enzymology Protease Inhibitors - administration & dosage Pulmonary Disease, Chronic Obstructive - drug therapy Pulmonary Disease, Chronic Obstructive - enzymology Signal Transduction - drug effects Signal Transduction - physiology
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Summary:	Matrix metalloproteinases (MMPs) are a large family of proteolytic enzymes involved in an array of physiological and pathological processes from development, morphogenesis, reproduction, wound healing, and aging to inflammation, angiogenesis, neurological disorders, and cancer cell invasion and metastasis. The imbalance between MMP activity and the inhibitory action of tissue inhibitors of metalloproteinases (TIMPs) are implicated in multiple diseases. Secreted in the body in a latent form, upon activation MMP-9 (gelatinase B) acts on many inflammatory substrates, and thus is suspected of contributing to the progression of cardiovascular disease, rheumatoid arthritis, and the subjects of this review, chronic obstructive pulmonary disease (COPD) and multiple sclerosis (MS). COPD is the fourth most common cause of death in the United States. In COPD, increased expression of MMP-9 by inflammatory cells e.g. neutrophils and macrophages is correlated with a variety of processes that cause lung damage. MMP-9 is also important in cytokine and protease modulation; it degrades the serine protease inhibitor alpha(1)-antitrypsin, which thus may lead to lung destruction. MS affects approximately 400,000 Americans and over a million people worldwide. Upregulation of MMP-9 increases the permeability of the blood brain barrier (BBB), facilitates the infiltration of leukocytes into the central nervous system, and causes myelin sheath degradation and neuronal damage. Early stage clinical trials have shown promising results when MMP-9 is inhibited in MS. These observations lead to the hypothesis that MMP-9 is a potential drug target for both COPD and MS and further development of highly potent and specific MMP-9 inhibitors is warranted.
ISSN:	1873-4316
DOI:	10.2174/138920108783497631