Metalloproteinase and growth factor interactions: Do they play a role in pulmonary fibrosis?

Margaret K. Winkler, John L. Fowlkes

Research output: Contribution to journalReview articlepeer-review

62 Scopus citations


Chronic lung disease due to interstitial fibrosis can be a consequence of acute lung injury and inflammation. The inflammatory response is mediated through the migration of inflammatory cells, actions of proinflammatory cytokines, and the secretion of matrix-degrading proteinases. After the initial inflammatory insult, successful healing of the lung may occur, or alternatively, dysregulated tissue repair can result in scarring and fibrosis. On the basis of recent insights into the mechanisms underlying acute lung injury and its long-term consequences, data suggest that proteinases, such as the matrix metalloproteinases (MMPs), may not only be involved in the breakdown and remodeling that occurs during the injury but may also cause the release of growth factors and cytokines known to influence growth and differentiation of target cells within the lung. Through the release of and activation of fibrosis-promoting cytokines and growth factors such as transforming growth factor-β1, tumor necrosis factor-α, and insulin-like growth factors by MMPs, we propose that these metalloproteinases may be integral to the initiation and progression of pulmonary fibrosis.

Original languageEnglish
Pages (from-to)L1-L11
JournalAmerican Journal of Physiology - Lung Cellular and Molecular Physiology
Issue number1 27-1
StatePublished - 2002


  • Acute respiratory distress syndrome
  • Bronchopulmonary dysplasia
  • Cytokines
  • Emphysema
  • Lung fibrosis

ASJC Scopus subject areas

  • Physiology
  • Pulmonary and Respiratory Medicine
  • Physiology (medical)
  • Cell Biology


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