Evidence map›Paper›PMID 32690869›Full record

ArticleProstate cancer and prostatic diseases2021

BRD4 regulates key transcription factors that drive epithelial-mesenchymal transition in castration-resistant prostate cancer.

Jordan S Shafran, Naser Jafari, Allison N Casey, Balázs Győrffy, Gerald V Denis

Open access · greenAbstract read
In one paragraph

Article in Prostate cancer and prostatic diseases, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed
2.2field-weighted citation impact, top 12% of its field
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

22 citing papers in PubMed, 42 citations in OpenAlex.

  1. Article
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  8. Article
  9. Targeting Key Players of Neuroendocrine Differentiation in Prostate Cancer.International journal of molecular sciences · 2023
    Review
  10. Review
  11. Review
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  13. Consistent DNA Hypomethylations in Prostate Cancer.International journal of molecular sciences · 2022
    Article
  14. Article
  15. Review
  16. Review
  17. Journal of biosciences · 2022
    Review
  18. Article
  19. Review
  20. Overcoming Cancer Drug Resistance Utilizing PROTAC Technology.Frontiers in cell and developmental biology · 2022
    Review
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

5 authors at 2 institutions in 2 countries.

Jordan S ShafranBoston University-Boston Medical Center Cancer Center, Boston, MA, 02118, USA.ORCID http://orcid.org/0000-0001-6946-3060
Naser JafariBoston University-Boston Medical Center Cancer Center, Boston, MA, 02118, USA.
Allison N CaseyBoston University-Boston Medical Center Cancer Center, Boston, MA, 02118, USA.
Balázs GyőrffyDepartment of Bioinformatics and 2nd Department of Pediatrics, Semmelweis University, Budapest, 1094, Hungary.
Gerald V DenisBoston University-Boston Medical Center Cancer Center, Boston, MA, 02118, USA. gdenis@bu.edu.ORCID http://orcid.org/0000-0001-9886-0401
Boston University · USSemmelweis University · HU

Funding

RESEARCH TRAINING IN IMMUNOLOGYT32AI007309 · NIAID · BOSTON UNIVERSITY MEDICAL CAMPUS · PI GUMMULURU, SURYARAM · 1988 to 2024
$7.4M
Mechanisms of BET bromodomain metabolic reprogramming in triple negative breast cancerR01CA222170 · NCI · BOSTON UNIVERSITY MEDICAL CAMPUS · PI DENIS, GERALD V · 2018 to 2022
$3.1M
Uncoupling obesity from breast cancer in African American womenU01CA182898 · NCI · BOSTON UNIVERSITY MEDICAL CAMPUS · PI DENIS, GERALD V, PALMER, JULIE R · 2013 to 2017
$3.1M
Multiscale analysis of metabolic inflammation as a driver of breast cancerU01CA243004 · NCI · BOSTON UNIVERSITY MEDICAL CAMPUS · PI DENIS, GERALD V, EMILI, ANDREW · 2020 to 2024
$2.8M
Mechanisms of Brd2 immunoprotection from insulin resistanceR56DK090455 · NIDDK · BOSTON UNIVERSITY MEDICAL CAMPUS · PI DENIS, GERALD V · 2011 to 2011
$54k
NCI NIH HHS R01 CA222170NCI NIH HHS R01CA222170NCI NIH HHS U01 CA182898NCI NIH HHS U01CA182898NCI NIH HHS U01 CA243004NIAID NIH HHS T32 AI007309NIAID NIH HHS T32AI007309NIDDK NIH HHS R56 DK090455
6 · The paper itself

Abstract

backgroundAndrogen deprivation therapies for the hormone-dependent stages of prostate cancer have become so effective that new forms of chemoresistant tumors are emerging in clinical practice, and require new targeted therapies in the metastatic setting. Yet there are important gaps in our understanding of the relevant transcriptional networks driving this process. Progression from localized to metastatic castration resistant prostate cancer (mCRPC) occurs as a result of accumulated resistance mechanisms that develop upon sustained androgen receptor (AR) suppression. Critical to this progression is the plastic nature by which prostate tumor cells transition from epithelial to mesenchymal states (EMT).

methodsHere, using prostate cancer cell lines with different AR composition, we systematically manipulated somatic proteins of the Bromodomain and ExtraTerminal (BET) family (BRD2, BRD3, and BRD4) to determine which BET proteins influence EMT. We used the TCGA repository to correlate the expression of individual BET genes with key EMT genes and determined biochemical recurrence in 414 patients and progression free survival in 488 patients.

resultsWe found that only BRD4-and not BRD2 or BRD3-regulates the expression of SNAI1 and SNAI2, and that the downregulation of these EMT transcription factors significantly increases E-cadherin expression. Furthermore, of the BET genes, only BRD4 correlates with survival outcomes in prostate cancer patients. Moreover, selective degradation of BRD4 protein with MZ1 ablates EMT (transcriptionally and morphologically) induced by TGFß signaling.

conclusionsMany relapsed/refractory tumors share a neuroendocrine transcriptional signature that had been relatively rare until highly successful antiandrogen drugs like abiraterone and enzalutamide came into widespread use. New therapeutic targets must therefore be developed. Our results identify key EMT genes regulated by BRD4, and offers a novel druggable target to treat mCRPC. BRD4-selective protein degraders offer a promising next generation approach to treat the emerging forms of chemoresistance in advanced prostate cancer.

Indexed as

Bromodomain Containing ProteinsCell Cycle ProteinsCell Line, TumorEpithelial-Mesenchymal TransitionGene Expression Regulation, NeoplasticHumansMaleProstatic Neoplasms, Castration-ResistantRNA, NeoplasmSignal TransductionTranscription FactorsBRD4 protein, humanBromodomain Containing ProteinsCell Cycle ProteinsRNA, NeoplasmTranscription Factors

Identifiers

PMID32690869
PMCPMC7855805
OpenAlexW3043076747

What OpenQuestion holds

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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.