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Androgen Receptor Pathway-Independent Prostate Cancer Is Sustained through FGF Signaling. | LitMetric

Androgen Receptor Pathway-Independent Prostate Cancer Is Sustained through FGF Signaling.

Cancer Cell

Department of Medicine, University of Washington, Seattle, WA, USA; Divisions of Human Biology and Clinical Research, Fred Hutchinson Cancer Research Center, Mailstop D4-100, 1100 Fairview Avenue N, Seattle, WA 98109-1024, USA; Department of Urology, University of Washington, 1959 NE Pacific Street, Seattle, WA 98195, USA; Department of Pathology, University of Washington, Seattle, WA, USA. Electronic address:

Published: October 2017

AI Article Synopsis

Article Abstract

Androgen receptor (AR) signaling is a distinctive feature of prostate carcinoma (PC) and represents the major therapeutic target for treating metastatic prostate cancer (mPC). Though highly effective, AR antagonism can produce tumors that bypass a functional requirement for AR, often through neuroendocrine (NE) transdifferentiation. Through the molecular assessment of mPCs over two decades, we find a phenotypic shift has occurred in mPC with the emergence of an AR-null NE-null phenotype. These "double-negative" PCs are notable for elevated FGF and MAPK pathway activity, which can bypass AR dependence. Pharmacological inhibitors of MAPK or FGFR repressed the growth of double-negative PCs in vitro and in vivo. Our results indicate that FGF/MAPK blockade may be particularly efficacious against mPCs with an AR-null phenotype.

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5750052PMC
http://dx.doi.org/10.1016/j.ccell.2017.09.003DOI Listing

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