ERα-CITED1 co-regulated genes expressed during pubertal mammary gland development

Implications for breast cancer prognosis

J. McBryan, J. Howlin, P. A. Kenny, T. Shioda, F. Martin

Research output: Contribution to journalArticle

44 Citations (Scopus)

Abstract

Expression microarray analysis identified over 930 genes regulated during puberty in the mouse mammary gland. Most prominent were genes whose expression increased in parallel with pubertal development and remained high thereafter. Members of the Wnt, transforming growth factor-β and oestrogen-signalling pathways were significantly overrepresented. Comparison to expression data from CITED1 knockout mice identified a subset of oestrogen-responsive genes displaying altered expression in the absence of CITED1. Included in this subset are stanniocalcin2 (Stc2) and amphiregulin (Areg). Chromatin immunoprecipitation revealed that ERα binds to oestrogen response elements in both the Stc2 and Areg genes in the mammary gland during puberty. Additionally, CITED1 and ERα localize to the same epithelial cells of the pubertal mammary gland, supporting a role for interaction of these two proteins during normal development. In a human breast cancer data set, expression of Stc2, Areg and CITED1 parallel that of ERα. Similar to ERα, CITED1 expression correlates with good outcome in breast cancer, implying that potential maintenance of the ERα-CITED1 co-regulated signalling pathway in breast tumours can indicate good prognosis.

Original languageEnglish (US)
Pages (from-to)6406-6419
Number of pages14
JournalOncogene
Volume26
Issue number44
DOIs
StatePublished - Sep 27 2007
Externally publishedYes

Fingerprint

Human Mammary Glands
Estrogens
Puberty
Breast Neoplasms
Genes
Chromatin Immunoprecipitation
Response Elements
Transforming Growth Factors
Microarray Analysis
Knockout Mice
Epithelial Cells
Maintenance
Gene Expression
Amphiregulin
Proteins

Keywords

  • CITEDI
  • Development
  • ERα
  • Mammary gland
  • Puberty

ASJC Scopus subject areas

  • Molecular Biology
  • Cancer Research
  • Genetics

Cite this

ERα-CITED1 co-regulated genes expressed during pubertal mammary gland development : Implications for breast cancer prognosis. / McBryan, J.; Howlin, J.; Kenny, P. A.; Shioda, T.; Martin, F.

In: Oncogene, Vol. 26, No. 44, 27.09.2007, p. 6406-6419.

Research output: Contribution to journalArticle

McBryan, J. ; Howlin, J. ; Kenny, P. A. ; Shioda, T. ; Martin, F. / ERα-CITED1 co-regulated genes expressed during pubertal mammary gland development : Implications for breast cancer prognosis. In: Oncogene. 2007 ; Vol. 26, No. 44. pp. 6406-6419.
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