Pleiotropic effects of FGFR1 on cell proliferation, survival, and migration in a 3D mammary epithelial cell model

Wa Xian, Kathryn L. Schwertfeger, Tracy Vargo-Gogola, Jeffrey M. Rosen

Research output: Contribution to journalArticle

114 Citations (Scopus)

Abstract

Members of the fibroblast growth factor (FGF) family and the FGF receptors (FGFRs) have been implicated in mediating various aspects of mammary gland development and transformation. To elucidate the molecular mechanisms of FGFR1 action in a context that mimics polarized epithelial cells, we have developed an in vitro three-dimensional HC11 mouse mammary epithelial cell culture model expressing a drug-inducible FGFR1 (iFGFR1). Using this conditional model, iFGFR1 activation in these growth-arrested and polarized mammary acini initially led to reinitiation of cell proliferation, increased survival of luminal cells, and loss of cell polarity, resulting in the disruption of acinar structures characterized by the absence of an empty lumen. iFGFR1 activation also resulted in a gain of invasive properties and the induction of matrix metalloproteinase 3 (MMP-3), causing the cleavage of E-cadherin and increased expression of smooth muscle actin and vimentin. The addition of a pan MMP inhibitor abolished these phenotypes but did not prevent the effects of iFGFR1 on cell proliferation or survival.

Original languageEnglish (US)
Pages (from-to)663-673
Number of pages11
JournalJournal of Cell Biology
Volume171
Issue number4
DOIs
StatePublished - Nov 21 2005
Externally publishedYes

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Cell Movement
Cell Survival
Breast
Epithelial Cells
Cell Proliferation
Fibroblast Growth Factor Receptors
Matrix Metalloproteinase 3
Cell Polarity
Matrix Metalloproteinase Inhibitors
Fibroblast Growth Factors
Vimentin
Cadherins
Human Mammary Glands
Smooth Muscle
Actins
Cell Culture Techniques
Phenotype
Growth
Pharmaceutical Preparations
In Vitro Techniques

ASJC Scopus subject areas

  • Cell Biology

Cite this

Pleiotropic effects of FGFR1 on cell proliferation, survival, and migration in a 3D mammary epithelial cell model. / Xian, Wa; Schwertfeger, Kathryn L.; Vargo-Gogola, Tracy; Rosen, Jeffrey M.

In: Journal of Cell Biology, Vol. 171, No. 4, 21.11.2005, p. 663-673.

Research output: Contribution to journalArticle

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