Evidence map›Paper›PMID 18845648›Full record

ArticleEndocrine-related cancer2009

Expression and significance of androgen receptor coactivators in urothelial carcinoma of the bladder.

Stephen A Boorjian, Hannelore V Heemers, Igor Frank, Sara A Farmer, Lucy J Schmidt, Thomas J Sebo, Donald J Tindall

Open access · greenAbstract read
In one paragraph

Article in Endocrine-related cancer, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 42 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
42citing papers in PubMed, 2 pooled it
3.1field-weighted citation impact, top 9% 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

42 citing papers in PubMed, 2 syntheses or guidelines pooled it, 80 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Article
  4. Review
  5. Review
  6. The androgen receptor in bladder cancer.Nature reviews. Urology · 2023
    Review
  7. Article
  8. Review
  9. Review
  10. Review
  11. Article
  12. Review
  13. Article
  14. Article
  15. Review
  16. Article
  17. Article
  18. Article
  19. Article
  20. Article
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

7 authors at 1 institution in 1 country.

Stephen A BoorjianDepartment of Urology, Mayo Clinic, Rochester, Minnesota 55905, USA.
Hannelore V Heemers
Igor Frank
Sara A Farmer
Lucy J Schmidt
Thomas J Sebo
Donald J Tindall
Mayo Clinic · US

Funding

Women's Cancer ProgramP30CA015083 · NCI · MAYO CLINIC ROCHESTER · PI Felicity Enders · 1985 to 2026
$151.3M
Utility of serum and Tissue Biomarkers for Predicting Response to Androgen DeprivP50CA091956 · NCI · MAYO CLINIC ROCHESTER · PI TINDALL, DONALD J. · 2001 to 2010
$23.4M
Coregulators in Androgen-Refractory Prostate CancerR01CA121277 · NCI · MAYO CLINIC ROCHESTER · PI TINDALL, DONALD J. · 2006 to 2010
$1.3M
NCI NIH HHS CA121277NCI NIH HHS CA91956NCI NIH HHS N01 CA015083NCI NIH HHS P30 CA015083NCI NIH HHS P50 CA091956NCI NIH HHS R01 CA121277
6 · The paper itself

Abstract

Urothelial carcinoma (UC) of the bladder is approximately three times more common in men than women. While the etiology for this gender difference in incidence remains unknown, a role for androgen receptor (AR) signaling has been suggested. The mechanisms by which AR activity is regulated in UC cells, however, are largely elusive. Here, we explore the significance of coregulators that are critical for the formation of a functional AR transcriptional complex, in UC cells. Using two AR-positive UC cell lines, TCC-SUP and UMUC3, we demonstrate the expression of the coactivators NCOA1, NCOA2, NCOA3, CREBBP, and EP300 in UC cells. small interfering RNA-mediated knockdown of the AR or any of these coactivators markedly impacted cell viability and abrogated androgen-dependent cell proliferation. Noteworthy, contrary to AR-positive prostate cancer cells, expression of these AR-associated coactivators was not androgen regulated in UC cells. To assess the clinical relevance of coactivator expression, we performed immunohistochemistry on paraffin-embedded sections from 55 patients with UC of the bladder. We found that while 24 out of 55 (44%) of tumors expressed the AR, each of the coactivators was expressed by 85-100% of the bladder cancers. Moreover, we noted a significant downregulation of NCOA1 expression in tumors versus adjacent, non-tumor bladder urothelium, with a mean of 68% (range 0-100) of tumor cells demonstrating NCOA1 staining versus a mean of 81% (range 0-90) of non-tumor cells (P=0.03). Taken together, our data suggest an important role for AR-associated coactivators in UC and point toward differences in the regulation of AR activity between bladder and prostate cancer cells.

Indexed as

AndrogensCell Line, TumorCREB-Binding ProteinE1A-Associated p300 ProteinFemaleGene Expression Regulation, NeoplasticHistone AcetyltransferasesHumansImmunohistochemistryMaleNuclear Receptor Coactivator 1Nuclear Receptor Coactivator 2Nuclear Receptor Coactivator 3Receptors, AndrogenRNA, Small InterferingSignal TransductionAndrogensCREB-Binding ProteinCREBBP protein, humanE1A-Associated p300 ProteinEP300 protein, humanHistone AcetyltransferasesNCOA1 protein, humanNCOA2 protein, humanNCOA3 protein, humanNuclear Receptor Coactivator 1Nuclear Receptor Coactivator 2Nuclear Receptor Coactivator 3Receptors, AndrogenRNA, Small InterferingTrans-ActivatorsTranscription Factors

Identifiers

PMID18845648
PMCPMC2674368
OpenAlexW2129824829

What OpenQuestion holds

Textmetadata
LicenceTDM
Read underepoch 390

Registered trials

None linked

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.