Hepatocyte growth factor attenuates collagen accumulation in a murine model of pulmonary fibrosis

Makoto Dohi, Takashi Hasegawa, Kazuhiko Yamamoto, Bruce Marshall

Research output: Contribution to journalArticle

Abstract

We investigated the in vivo effects of recombinant human hepatocyte growth factor (HGF) on epithelial cell proliferation in normal mouse lung and on the repair process that follows bleomycin-induced lung injury. Intratracheal administration of 100 μg of rhHGF to C57BL/6 mice led to proliferation of bronchial and alveolar epithelial cells as indicated by an increased number of cells staining for proliferating cell nuclear antigen (PCNA). The effect of HGF on the lung repair process was examined by administration of 100 μg of rhHGF on Day 3 and Day 6 after intratracheal injection of bleomycin to mice. We found that HGF significantly attenuated collagen accumulation induced by bleomycin as determined by quantitation of hydroxyproline content and by scoring of the extent of fibrosis. To explore the potential mechanisms involved in the beneficial effects of HGF, we performed in vitro studies with A549 pulmonary epithelial cells and found that HGF enhanced cell surface plasmin generation, expression of u-PA activity, and cell migration. In summary, HGF has potent in vivo and in vitro effects on epithelial cells, which suggests it may have a role in the therapy of pulmonary fibrosis.

Original languageEnglish (US)
Pages (from-to)2302-2307
Number of pages6
JournalAmerican Journal of Respiratory and Critical Care Medicine
Volume162
Issue number6
StatePublished - 2000
Externally publishedYes

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Hepatocyte Growth Factor
Pulmonary Fibrosis
Collagen
Bleomycin
Epithelial Cells
Lung
Alveolar Epithelial Cells
Fibrinolysin
Hydroxyproline
Proliferating Cell Nuclear Antigen
Lung Injury
Inbred C57BL Mouse
Cell Movement
Fibrosis
Cell Count
Cell Proliferation
Staining and Labeling
Injections

ASJC Scopus subject areas

  • Medicine(all)
  • Pulmonary and Respiratory Medicine
  • Critical Care and Intensive Care Medicine

Cite this

Hepatocyte growth factor attenuates collagen accumulation in a murine model of pulmonary fibrosis. / Dohi, Makoto; Hasegawa, Takashi; Yamamoto, Kazuhiko; Marshall, Bruce.

In: American Journal of Respiratory and Critical Care Medicine, Vol. 162, No. 6, 2000, p. 2302-2307.

Research output: Contribution to journalArticle

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