Browsing by Subject "Coregulators"

Now showing 1 - 1 of 1
  • Thumbnail Image
    Publication
    Open Access
    Emerging significance of ER-coregulator PELP1-MNAR in cancer
    (Murcia : F. Hernández, 2007) Nair, S.; Vadlamudi, R.K.
    The estrogen receptors ERa and ERß have been implicated in the progression of a wide variety of cancers. The actions of ER are regulated by ER coregulator proteins, including proline-, glutamic acidand leucine-rich-protein-1 (PELP1/MNAR). PELP1 has been shown to participate in both genomic and nongenomic functions of ER. The expression and localization of PELP1/MNAR are deregulated in a wide variety of tumors and have been implicated in the development of hormonal resistance in cancer cell lines. Emerging data suggest that PELP1/MNAR interacts with many proteins and activates several oncogenes, including Src kinase, phosphotidyl inositol 3 kinase (PI3K), and signal transducers and activators of transcription 3 (STAT3). These new results suggest that PELP1/MNAR may act as an oncogene as well as cooperating with other oncogenes. Thus, PELP1/MNAR may contribute to the tumorigenic potential of cancer cells by serving as a scaffolding protein that couples various signaling complexes with ER.