Evidence map›Paper›PMID 27036029›Full record

ArticleOncotarget2016

Acquired resistance to the second-generation androgen receptor antagonist enzalutamide in castration-resistant prostate cancer.

Steven Kregel, James L Chen, Westin Tom, Venkatesh Krishnan, Jacob Kach, Hannah Brechka, Tim B Fessenden, Masis Isikbay, Gladell P Paner, Russell Z Szmulewitz and 1 more

Abstract read
In one paragraph

Article in Oncotarget, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 87 papers.

0numbers the graph read from it
0cells of the map it votes in
87citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

87 citing papers in PubMed.

  1. Trial
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  4. A ligandable PNT domain establishes ERG as a directly targetable oncogenic driver in prostate cancer.Proceedings of the National Academy of Sciences of the United States of America · 2026
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27 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

11 authors.

Steven KregelCommittee on Cancer Biology, The University of Chicago, Chicago, IL, USA.
James L ChenDepartment of Biomedical Informatics and Internal Medicine, The Ohio State University, Columbus, OH, USA.
Westin TomDepartment of Surgery, Section of Urology, The University of Chicago, Chicago, IL, USA.
Venkatesh KrishnanDepartment of Surgery, Section of Urology, The University of Chicago, Chicago, IL, USA.
Jacob KachDepartment of Medicine, Section of Hematology/Oncology, The University of Chicago, Chicago, IL, USA.
Hannah BrechkaCommittee on Cancer Biology, The University of Chicago, Chicago, IL, USA.
Tim B FessendenCommittee on Cancer Biology, The University of Chicago, Chicago, IL, USA.
Masis IsikbayDepartment of Medicine, Section of Hematology/Oncology, The University of Chicago, Chicago, IL, USA.
Gladell P PanerDepartment of Pathology, The University of Chicago, Chicago, IL, USA.
Russell Z SzmulewitzDepartment of Medicine, Section of Hematology/Oncology, The University of Chicago, Chicago, IL, USA.
Donald J Vander GriendCommittee on Cancer Biology, The University of Chicago, Chicago, IL, USA.

Funding

VIRAL ONCOLOGY CORE FACILITYP30CA014599 · NCI · UNIVERSITY OF CHICAGO · PI MARK W. LINGEN · 1985 to 2026
$122.1M
SUPPRESSIVE ROLE OF ANDROGEN RESPONSE GENE CALRETICULIN IN PROSTATE CANCERP50CA090386 · NCI · NORTHWESTERN UNIVERSITY AT CHICAGO · PI CRAWFORD, SUSAN · 2001 to 2013
$25.1M
Re-Engineering Translational Research at the University of ChicagoUL1TR000430 · NCATS · UNIVERSITY OF CHICAGO · PI SOLWAY, JULIAN · 2012 to 2016
$20.2M
Targeting FOXA1-downstream pathways: a novel therapeutic strategy for castration-resistant prostate cancerP50CA180995 · NCI · NORTHWESTERN UNIVERSITY AT CHICAGO · PI ABDULKADIR, SARKI A., HUSSAIN, MAHA H · 2015 to 2025
$19.9M
Multi-Disciplinary Training Grant in Cancer ResearchT32CA009594 · NCI · UNIVERSITY OF CHICAGO · PI KAY F MACLEOD, Scott A. Oakes · 1989 to 2026
$11.5M
Function of the Stem Cell Transcription Factor Sox2 in Prostate CancerR01CA178431 · NCI · UNIVERSITY OF ILLINOIS AT CHICAGO · PI VANDER GRIEND, DONALD JAMES · 2014 to 2018
$1.9M
NCATS NIH HHS UL1 TR000430NCI NIH HHS P30 CA014599NCI NIH HHS P50 CA090386NCI NIH HHS P50 CA180995NCI NIH HHS R01 CA178431NCI NIH HHS T32 CA009594
6 · The paper itself

Abstract

Enzalutamide (MDV3100) is a second generation Androgen Receptor (AR) antagonist with proven efficacy in the treatment of castration resistant prostate cancer (CRPC). The majority of treated patients, however, develop resistance and disease progression and there is a critical need to identify novel targetable pathways mediating resistance. The purpose of this study was to develop and extensively characterize a series of enzalutamide-resistant prostate cancer cell lines. Four genetically distinct AR-positive and AR-pathway dependent prostate cancer cell lines (CWR-R1, LAPC-4, LNCaP, VCaP) were made resistant to enzalutamide by long-term culture (> 6 months) in enzalutamide. Extensive characterization of these lines documented divergent in vitro growth characteristics and AR pathway modulation. Enzalutamide-resistant LNCaP and CWR-R1 cells, but not LAPC-4 and VCAP cells, demonstrated increased castration-resistant and metastatic growth in vivo. Global gene expression analyses between short-term enzalutamide treated vs. enzalutamide-resistant cells identified both AR pathway and non-AR pathway associated changes that were restored upon acquisition of enzalutamide resistance. Further analyses revealed very few common gene expression changes between the four resistant cell lines. Thus, while AR-mediated pathways contribute in part to enzalutamide resistance, an unbiased approach across several cell lines demonstrates a greater contribution toward resistance via pleiotropic, non-AR mediated mechanisms.

Indexed as

Androgen Receptor AntagonistsAnimalsAntineoplastic AgentsBenzamidesCell Line, TumorDrug Resistance, NeoplasmHumansMaleMiceNitrilesPhenylthiohydantoinProstatic Neoplasms, Castration-ResistantReceptors, AndrogenXenograft Model Antitumor AssaysAndrogen Receptor AntagonistsAntineoplastic AgentsAR protein, humanBenzamidesenzalutamideNitrilesPhenylthiohydantoinReceptors, Androgenandrogen receptorcastration-resistanceenzalutamideprostate cancer

Identifiers

PMID27036029
PMCPMC5041979

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.