Glucocorticoid induced expression of connective tissue growth factor contributes to lactogenic differentiation of mouse mammary epithelial cells

Weihan Wang, Bethanie Morrison, Traci Galbaugh, Cynthia C. Jose, Nicholas Kenney, Mary Cutler

Research output: Contribution to journalArticle

Abstract

The response of mammary epithelial cells to basement membrane and stroma induced signals contributes to the degree of differentiation in this tissue. The studies reported here indicate that connective tissue growth factor (CTGF) is highly elevated during lactogenic differentiation of the HCI 1 mouse mammary epithelial cell line. In addition, CTGF is expressed in the mouse mammary gland during pregnancy and lactation and it is expressed in primary mammary epithelial cell cultures established from pregnant mice. In HCI 1 cells CTGF is transcriptionally regulated by dexamethasone, but not by estrogen or progesterone, and CTGF expression is not dependent on TGFβ. CTGF contributes to and is required for lactogenic differentiation of HCI 1 cells, as demonstrated by increased differentiation following expression of plasmid-encoded CTGF and decreased differentiation following depletion of endogenous CTGF with siRNA. Moreover, HCI 1 mouse mammary epithelial cells infected with an adenoviral vector encoding CTGF exhibit increased lactogenic differentiation. Plasmid vector-induced elevation of CTGF levels also increased the level of β1 integrin in HCI 1 cells. Because the production of stromal factors is an important component of differentiation in mammary epithelial cells, the regulation of CTGF by glucocorticoids may play a critical role in this aspect of the control of differentiation. The studies reported here provide important information on the role of CTGF in mammary epithelial cell differentiation.

Original languageEnglish (US)
Pages (from-to)38-46
Number of pages9
JournalJournal of Cellular Physiology
Volume214
Issue number1
DOIs
StatePublished - Jan 2008
Externally publishedYes

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Connective Tissue Growth Factor
Glucocorticoids
Breast
Epithelial Cells
Human computer interaction
Plasmids
Human Mammary Glands
Cell culture
Lactation
Basement Membrane
Integrins
Dexamethasone
Small Interfering RNA
Progesterone
Cell Differentiation
Estrogens
Cell Culture Techniques

ASJC Scopus subject areas

  • Clinical Biochemistry
  • Cell Biology
  • Physiology

Cite this

Glucocorticoid induced expression of connective tissue growth factor contributes to lactogenic differentiation of mouse mammary epithelial cells. / Wang, Weihan; Morrison, Bethanie; Galbaugh, Traci; Jose, Cynthia C.; Kenney, Nicholas; Cutler, Mary.

In: Journal of Cellular Physiology, Vol. 214, No. 1, 01.2008, p. 38-46.

Research output: Contribution to journalArticle

Wang, Weihan ; Morrison, Bethanie ; Galbaugh, Traci ; Jose, Cynthia C. ; Kenney, Nicholas ; Cutler, Mary. / Glucocorticoid induced expression of connective tissue growth factor contributes to lactogenic differentiation of mouse mammary epithelial cells. In: Journal of Cellular Physiology. 2008 ; Vol. 214, No. 1. pp. 38-46.
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