Transcriptomics

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Gene expression data from mouse hormone receptor positive mammary epithelial cells during early pregnancy


ABSTRACT: The aim of this study was to identify transcriptional changes in hormone receptor positive (HR+) cells during the dynamic morphogenesis in mammary epithelium during early pregnancy. HR+ cells translate the systemic hormonal signals that indicate pregnancy into local instructions for the generation of alveoli (milk-producing units). We previously found that IGF-2 is produced by HR+ cells, but this is only detectable in early pregnancy and not in virgin animals. This data set was generated to charachterize what other genes become expressed in HR+ cells specifically during a time of active proliferation and cellular communication. The gene expression profile at 3 days of pregnancy shows a marked upregulation of genes involved in cell division. By the 7th day of pregnancy the HR+ cells induce expression of several secreted molecules. Taken together with EdU incorporation analysis, we find that HR+ cells first undergo an expansion phase and subsequently express paracrine stimulators of alveolar and basal mammary epithelial cells during early pregnancy.

ORGANISM(S): Mus musculus

PROVIDER: GSE63720 | GEO | 2014/12/02

SECONDARY ACCESSION(S): PRJNA268910

REPOSITORIES: GEO

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