A Common Docking (CD) Domain in Progesterone Receptor-B Links MKP3-Dependent Rapid Signaling Events to JAK/STAT Regulation of Gene Expression Required for Breast Cancer Cell Proliferation

ABSTRACT: Progesterone receptors (PRs) are critical context-dependent transcription factors required for normal uterine (PR-A) and mammary gland (PR-B) development. Progesterone is proliferative in the breast, where PR-target genes include paracrine factors that mediate mammary stem cell self-renewal. In the context of altered signal transduction that typifies breast tumorigenesis, dysregulated (i.e. hyper-phosphorylated) PRs likely contribute to tumor progression by promoting cancer cell pro-survival and proliferation. Notably, in breast cancer cells, progestin-bound PRs induce rapid MAPK activation leading to selective regulation of growth-promoting genes by phosphorylated PR species. Functional domains within PR that interact with c-Src and estrogen receptors (ER) have been identified as indirect

ORGANISM(S): Homo sapiens

SUBMITTER: Todd Knutson 

PROVIDER: E-GEOD-46850 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress