Laminin mediates tissue-specific gene expression in mammary epithelia

Charles H. Streuli, Christian Schmidhauser, Nina Bailey, Peter Yurchenco, Amy P.N. Skubitz, Calvin Roskelley, Mina J. Bissell

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Abstract

Tissue-specific gene expression in mammary epithelium is dependent on the extracellular matrix as well as hormones. There is good evidence that the basement membrane provides signals for regulating β-casein expression, and that integrins are involved in this process. Here, we demonstrate that in the presence of lactogenic hormones, laminin can direct expression of the β- casein gene. Mouse mammary epithelial cells plated on gels of native laminin or laminin-entactin undergo functional differentiation. On tissue culture plastic, mammary cells respond to soluble basement membrane or purified laminin, but not other extracellular matrix components, by synthesizingβ- casein. In mammary cells transfected with chloramphenicol acetyl transferase reporter constructs, laminin activates transcription from the β-casein promoter through a specific enhancer element. The inductive effect of laminin on casein expression was specifically blocked by the E3 fragment of the carboxy terminal region of the α1 chain of laminin, by antisera raised against the E3 fragment, and by a peptide corresponding to a sequence within this region. Our results demonstrate that laminin can direct tissue-specific gene expression in epithelial cells through its globular domain.

Original languageEnglish (US)
Pages (from-to)591-603
Number of pages13
JournalJournal of Cell Biology
Volume129
Issue number3
DOIs
StatePublished - May 1995

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Laminin
Breast
Epithelium
Caseins
Gene Expression
Basement Membrane
Extracellular Matrix
Epithelial Cells
Hormones
Peptide Fragments
Chloramphenicol
Transferases
Integrins
Plastics
Immune Sera
Gels

Cite this

Streuli, C. H., Schmidhauser, C., Bailey, N., Yurchenco, P., Skubitz, A. P. N., Roskelley, C., & Bissell, M. J. (1995). Laminin mediates tissue-specific gene expression in mammary epithelia. Journal of Cell Biology, 129(3), 591-603. https://doi.org/10.1083/jcb.129.3.591

Laminin mediates tissue-specific gene expression in mammary epithelia. / Streuli, Charles H.; Schmidhauser, Christian; Bailey, Nina; Yurchenco, Peter; Skubitz, Amy P.N.; Roskelley, Calvin; Bissell, Mina J.

In: Journal of Cell Biology, Vol. 129, No. 3, 05.1995, p. 591-603.

Research output: Contribution to journalArticle

Streuli, CH, Schmidhauser, C, Bailey, N, Yurchenco, P, Skubitz, APN, Roskelley, C & Bissell, MJ 1995, 'Laminin mediates tissue-specific gene expression in mammary epithelia', Journal of Cell Biology, vol. 129, no. 3, pp. 591-603. https://doi.org/10.1083/jcb.129.3.591
Streuli CH, Schmidhauser C, Bailey N, Yurchenco P, Skubitz APN, Roskelley C et al. Laminin mediates tissue-specific gene expression in mammary epithelia. Journal of Cell Biology. 1995 May;129(3):591-603. https://doi.org/10.1083/jcb.129.3.591
Streuli, Charles H. ; Schmidhauser, Christian ; Bailey, Nina ; Yurchenco, Peter ; Skubitz, Amy P.N. ; Roskelley, Calvin ; Bissell, Mina J. / Laminin mediates tissue-specific gene expression in mammary epithelia. In: Journal of Cell Biology. 1995 ; Vol. 129, No. 3. pp. 591-603.
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