Matrix metalloproteinase-induced fibrosis and malignancy in breast and lung

Derek C Radisky, Jennifer A. Przybylo

Research output: Contribution to journalArticle

37 Citations (Scopus)

Abstract

Fibrosis is a pathological condition in which tissue structure is disrupted by production of excess extracellular matrix (ECM), and chronic tissue fibrosis is associated with tumor development. Myofibroblasts are the principal mediators of fibrosis, producing abundant ECM as well as inflammatory and angiogenic factors. Myofibroblasts are also abundant in tumor stroma, where they facilitate tumor growth and progression. Matrix metalloproteinases (MMPs), enzymes that degrade and remodel the ECM, are believed to play a critical role in the development of fibrotic tissue, though the mechanism by which this occurs is unclear. Expression of MMP-3 in mammary epithelial cells of transgenic mice stimulates development of fibrosis and subsequent tumor formation. We have recently determined that exposure of mammary epithelial cells to MMP-3 induces a specialized form of epithelial-mesenchymal transition in which the cells acquire myofibroblast-like characteristics and that this process is dependent upon the generation of cellular reactive oxygen species (ROS). New data from culture models in which MMPs are inducibly expressed in human lung cell lines, and transgenic mouse models in which MMPs are inducibly expressed in lung alveolar epithelial cells, suggest that similar processes likely exist in the lung.

Original languageEnglish (US)
Pages (from-to)316-322
Number of pages7
JournalProceedings of the American Thoracic Society
Volume5
Issue number3
DOIs
StatePublished - Apr 2008

Fingerprint

Matrix Metalloproteinases
Myofibroblasts
Breast
Fibrosis
Extracellular Matrix
Matrix Metalloproteinase 3
Lung
Transgenic Mice
Neoplasms
Epithelial Cells
Alveolar Epithelial Cells
Epithelial-Mesenchymal Transition
Angiogenesis Inducing Agents
Reactive Oxygen Species
Cell Line
Enzymes
Growth

Keywords

  • Breast
  • Epithelial-mesenchymal transition
  • Fibrosis
  • Matrix metalloproteinases

ASJC Scopus subject areas

  • Pulmonary and Respiratory Medicine
  • Physiology
  • Cell Biology

Cite this

Matrix metalloproteinase-induced fibrosis and malignancy in breast and lung. / Radisky, Derek C; Przybylo, Jennifer A.

In: Proceedings of the American Thoracic Society, Vol. 5, No. 3, 04.2008, p. 316-322.

Research output: Contribution to journalArticle

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