FoxM1 Regulates Mammary Luminal Cell Fate

Janai R. Carr, Megan M. Kiefer, Hyun Jung Park, Jing Li, Zebin Wang, Joel Fontanarosa, Danielle DeWaal, Dragana Kopanja, Elizaveta V. Benevolenskaya, Grace Guzman, Pradip Raychaudhuri

Research output: Contribution to journalArticle

43 Citations (Scopus)

Abstract

Elevated expression of FoxM1 in breast cancer correlates with an undifferentiated tumor phenotype and a negative clinical outcome. However, a role for FoxM1 in regulating mammary differentiation was not known. Here, we identify another function of FoxM1, the ability to act as a transcriptional repressor, which plays an important role in regulating the differentiation of luminal epithelial progenitors. Regeneration of mammary glands with elevated levels of FoxM1 leads to aberrant ductal morphology and expansion of the luminal progenitor pool. Conversely, knockdown of FoxM1 results in a shift toward the differentiated state. FoxM1 mediates these effects by repressing the key regulator of luminal differentiation, GATA-3. Through association with DNMT3b, FoxM1 promotes methylation of the GATA-3 promoter in an Rb-dependent manner. This study identifies FoxM1 as a critical regulator of mammary differentiation with significant implications for the development of aggressive breast cancers.

Original languageEnglish (US)
Pages (from-to)715-729
Number of pages15
JournalCell Reports
Volume1
Issue number6
DOIs
StatePublished - Jun 28 2012
Externally publishedYes

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Methylation
Tumors
Breast
Association reactions
Breast Neoplasms
Human Mammary Glands
Regeneration
Phenotype
Neoplasms

ASJC Scopus subject areas

  • Biochemistry, Genetics and Molecular Biology(all)

Cite this

Carr, J. R., Kiefer, M. M., Park, H. J., Li, J., Wang, Z., Fontanarosa, J., ... Raychaudhuri, P. (2012). FoxM1 Regulates Mammary Luminal Cell Fate. Cell Reports, 1(6), 715-729. https://doi.org/10.1016/j.celrep.2012.05.005

FoxM1 Regulates Mammary Luminal Cell Fate. / Carr, Janai R.; Kiefer, Megan M.; Park, Hyun Jung; Li, Jing; Wang, Zebin; Fontanarosa, Joel; DeWaal, Danielle; Kopanja, Dragana; Benevolenskaya, Elizaveta V.; Guzman, Grace; Raychaudhuri, Pradip.

In: Cell Reports, Vol. 1, No. 6, 28.06.2012, p. 715-729.

Research output: Contribution to journalArticle

Carr, JR, Kiefer, MM, Park, HJ, Li, J, Wang, Z, Fontanarosa, J, DeWaal, D, Kopanja, D, Benevolenskaya, EV, Guzman, G & Raychaudhuri, P 2012, 'FoxM1 Regulates Mammary Luminal Cell Fate', Cell Reports, vol. 1, no. 6, pp. 715-729. https://doi.org/10.1016/j.celrep.2012.05.005
Carr JR, Kiefer MM, Park HJ, Li J, Wang Z, Fontanarosa J et al. FoxM1 Regulates Mammary Luminal Cell Fate. Cell Reports. 2012 Jun 28;1(6):715-729. https://doi.org/10.1016/j.celrep.2012.05.005
Carr, Janai R. ; Kiefer, Megan M. ; Park, Hyun Jung ; Li, Jing ; Wang, Zebin ; Fontanarosa, Joel ; DeWaal, Danielle ; Kopanja, Dragana ; Benevolenskaya, Elizaveta V. ; Guzman, Grace ; Raychaudhuri, Pradip. / FoxM1 Regulates Mammary Luminal Cell Fate. In: Cell Reports. 2012 ; Vol. 1, No. 6. pp. 715-729.
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