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      Series "matrix metalloproteinases in lung health and disease": Matrix metalloproteinases in COPD.

      The European Respiratory Journal

      Treatment Outcome, Smoking, physiopathology, enzymology, Pulmonary Disease, Chronic Obstructive, Models, Biological, Mice, Inbred C57BL, Mice, metabolism, Matrix Metalloproteinases, Inflammation, Hypertension, Pulmonary, Humans, Emphysema, Collagen, Bronchitis, Animals

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          Abstract

          There is considerable evidence that matrix metalloproteinases (MMPs) are up- and/or downregulated in chronic obstructive pulmonary disease (COPD), particularly in emphysema, in which they probably participate in proteolytic attack on the alveolar wall matrix. Recent data suggest that MMPs also have major roles in driving inflammation or shutting it down, as well as modifying the release of fibrogenic growth factors, processes that are important in the genesis of the various lesions of COPD. In cigarette smoke-induced animal models of emphysema, MMP-12 appears to play a consistent and important role, whereas the data for other MMPs are difficult to interpret. In human lungs, evidence for a role for MMPs is more tenuous and there are numerous contradictions in the literature. Little is known about the effects of MMPs in small airway remodelling, smoke-induced pulmonary hypertension and chronic bronchitis, but MMP-12 participates in experimental small airway modelling. To date, the accumulated data suggest that selective inhibition of MMP-12 might be a viable therapy for emphysema and small airway remodelling, but subtle differences in the functions of MMP-12 in animals and humans mandate caution with this approach. Whether inhibition of other MMPs might be useful is unclear.

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          Journal
          10.1183/09031936.00121611
          21920892

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