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      Glucocorticoid Receptor is distinct from Androgen Receptor function in Castrate-Resistant Prostate Cancer

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      ScienceOpen

      Prostate cancer, Glucocorticoid receptor, Androgen receptor

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          Abstract

          Commonly used therapies for prostate cancer (PC) that block androgen receptor (AR) signaling inhibit regrowth, but aggressive castrate-resistant (CR)PC abrogates anti-androgen therapy. Recently published data shows that glucocorticoid receptor (GR) can drive the growth of CRPC when AR is blocked, by mimicking AR activity. Due to the evolution of CRPC into a more invasive disease, we hypothesized that GR-driven CRPC has different activities than AR that promote progression to metastatic disease. To test this hypothesis, we performed gene expression analysis on available datasets to determine which pathways correlate with GR target gene expression. Furthermore, we investigated gene expression in CWR-22Rv1 CRPC cells via qRT-PCR. Our results show that GR-activation in AR-blocked cells induces different genes than AR, suggesting that GR-driven CRPC is unique from AR-driven disease. The scientific contribution of our research may reveal new mechanisms by which GR drives PC progression and unveil novel therapeutic targets.

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          Author and article information

          Journal
          ScienceOpen Posters
          ScienceOpen
          1 May 2020
          Affiliations
          [1 ] Roosevelt University, Chicago, IL USA
          Article
          10.14293/S2199-1006.1.SOR-.PPK9XZ7.v1

          This work has been published open access under Creative Commons Attribution License CC BY 4.0 , which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. Conditions, terms of use and publishing policy can be found at www.scienceopen.com .

          Data sharing not applicable to this article as no datasets were generated or analysed during the current study.

          Cancer biology

          Androgen receptor, Glucocorticoid receptor, Prostate cancer

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