Cited by 744Prostate Cancer Treatment and ResearchProstate Cancer Diagnosis and TreatmentCancer, Lipids, and Metabolism

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

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Bluemn, Eric G., Coleman, Ilsa M., Lucas, Jared M., Coleman, Roger T., Hernandez-Lopez, Susana, Tharakan, Robin, Bianchi-Frias, Daniella, Dumpit, Ruth F. +19 more·2017·Cancer Cell

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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Crossref · 10.1016/j.ccell.2017.09.003

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  • The vast majority of mCRPC samples from patients resistant to abiraterone and enzalutamide exhibit robust AR/nuclear AR staining.

    “Recent analyses of clinical samples have demonstrated that the vast majority of mCRPC samples from patients resistant to ARSI agents abiraterone and enzalutamide exhibit robust AR/nuclear AR staining20,21.”

    From Genome-scale CRISPR screens identify PTGES3 as a direct modulator of androgen receptor function in advanced prostate cancer (2025) · cites this paper as [21]

    The Discussion (page not provided) says resistance to AR-directed therapy is usually accompanied by reactivation of AR signaling. But the Results (page not provided) give the 85% AR-active figure for tumors collected before enzalutamide and abiraterone were approved; they do not establish that the vast majority of samples from patients resistant to those drugs have robust AR or nuclear AR staining. (LLM, conf=0.82)

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Authors
Bluemn, E. G., Coleman, I. M., Lucas, J. M., Coleman, R. T., Hernandez-Lopez, S., Tharakan, R., Bianchi-Frias, D., Dumpit, R. F., Kaipainen, A., Corella, A. N., Yang, Y. C., Nyquist, M. D., Mostaghel, E., Hsieh, A. C., Zhang, X., Corey, E., Brown, L. G., Nguyen, H. M., Pienta, K., Ittmann, M., Schweizer, M., True, L. D., Wise, D., Rennie, P. S., Vessella, R. L., Morrissey, C., & Nelson, P. S.
Affiliations
  • University of Washington (US)
  • Fred Hutch Cancer Center (US)
  • Johns Hopkins University (US)
  • Baylor College of Medicine (US)
  • Memorial Sloan Kettering Cancer Center (US)
  • Vancouver Prostate Centre (CA)
Corresponding author
  • Morrissey, Colm
  • Nelson, Peter S.
Venue
Cancer Cell
Publisher
Elsevier BV
Published
2017-10
Volume
32
Issue
4
Pages
474-489.e6
ISSN
1535-6108 (ISSN-L)
OpenAlex
W2762381618
Cited by
744
References
70
Citations by year
2026: 73 · 2025: 96 · 2024: 96 · 2023: 102 · 2022: 84 · 2021: 96 · 2020: 73 · 2019: 69 · 2018: 53 · 2017: 2
FWCI
44.57
Type
journal article
Language
en
Open access
Locations
  • Cancer Cell (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • NIH (P50CA097186, P01 CA163227)
  • DOD (PC140794, PC160662)
  • DF/HCC Mazzone
  • Institute for Prostate Cancer Research
  • Richard M. Lucas Foundation
  • Movember
  • Prostate Cancer Foundation
Topics
  • Health Sciences › Medicine › Pulmonary and Respiratory Medicine › Prostate Cancer Treatment and Research
  • Health Sciences › Medicine › Pulmonary and Respiratory Medicine › Prostate Cancer Diagnosis and Treatment
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cancer Research › Cancer, Lipids, and Metabolism
Keywords
androgen receptor signaling, prostate cancer, metastatic prostate cancer, FGF signaling, MAPK signaling, FGFR inhibitors, MAPK inhibitors, neuroendocrine transdifferentiation, treatment resistance
MeSH terms
Androgen Antagonists, Animals, Cell Differentiation, Fibroblast Growth Factors, Humans, Male, Neoplasm Metastasis, Prostatic Neoplasms, Receptors, Androgen, Signal Transduction, Receptors, Fibroblast Growth Factor, MAP Kinase Signaling System, Cell Line, Tumor, Mice, Inhibitor of Differentiation Protein 1

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