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Cited by 464

The DOI matches its Crossref record; 7 of the 7 references it cites were found in a registry or an index.

Molecular profiling stratifies diverse phenotypes of treatment-refractory metastatic castration-resistant prostate cancer

Open access
Labrecque, Mark P., Coleman, Ilsa M., Brown, Lisha G., True, Lawrence D., Kollath, Lori, Lakely, Bryce, Nguyen, Holly M., Yang, Yu C., da Costa, Rui M. Gil, Kaipainen, Arja, Coleman, Roger, Higano, Celestia S., Yu, Evan Y., Cheng, Heather H., Mostaghel, Elahe A., Montgomery, Bruce, Schweizer, Michael T., Hsieh, Andrew C., Lin, Daniel W., Corey, Eva, Nelson, Peter S., Morrissey, Colm·2019·Journal of Clinical Investigation

Abstract

Metastatic castration-resistant prostate cancer (mCRPC) is a heterogeneous disease with diverse drivers of disease progression and mechanisms of therapeutic resistance. We conducted deep phenotypic characterization of CRPC metastases and patient-derived xenograft (PDX) lines using whole genome RNA sequencing, gene set enrichment analysis and immunohistochemistry. Our analyses revealed five mCRPC phenotypes based on the expression of well-characterized androgen receptor (AR) or neuroendocrine (NE) genes: (i) AR-high tumors (ARPC), (ii) AR-low tumors (ARLPC), (iii) amphicrine tumors composed of cells co-expressing AR and NE genes (AMPC), (iv) double-negative tumors (i.e. AR-/NE-; DNPC) and (v) tumors with small cell or NE gene expression without AR activity (SCNPC). RE1-silencing transcription factor (REST) activity, which suppresses NE gene expression, was lost in AMPC and SCNPC PDX models. However, knockdown of REST in cell lines revealed that attenuated REST activity drives the AMPC phenotype but is not sufficient for SCNPC conversion. We also identified a subtype of DNPC tumors with squamous differentiation and generated an encompassing 26-gene transcriptional signature that distinguished the five mCRPC phenotypes. Together, our data highlight the central role of AR and REST in classifying treatment-resistant mCRPC phenotypes. These molecular classifications could potentially guide future therapeutic studies and clinical trial design.

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Metadata

Authors
Labrecque, M. P., Coleman, I. M., Brown, L. G., True, L. D., Kollath, L., Lakely, B., Nguyen, H. M., Yang, Y. C., da Costa, R. M. G., Kaipainen, A., Coleman, R., Higano, C. S., Yu, E. Y., Cheng, H. H., Mostaghel, E. A., Montgomery, B., Schweizer, M. T., Hsieh, A. C., Lin, D. W., Corey, E., Nelson, P. S., & Morrissey, C.
Venue
Journal of Clinical Investigation
Published
2019-09-16
Volume
129
Issue
10
Pages
4492-4505
ISSN
  • 0021-9738 (ISSN-L)
  • 1558-8238
OpenAlex
W2965156742
Cited by
464
References
7
FWCI
25.86
Type
journal article
Language
en
Open access
green

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