Evidence map›Paper›PMID 17616676›Full record

ArticleCancer research2007

Retinoblastoma tumor suppressor status is a critical determinant of therapeutic response in prostate cancer cells.

Ankur Sharma, Clay E S Comstock, Erik S Knudsen, Khanh H Cao, Janet K Hess-Wilson, Lisa M Morey, Jason Barrera, Karen E Knudsen

Open access · greenAbstract read
In one paragraph

Article in Cancer research, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 55 papers.

0numbers the graph read from it
0cells of the map it votes in
55citing papers in PubMed
2.1field-weighted citation impact, top 13% 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

55 citing papers in PubMed, 88 citations in OpenAlex.

  1. Review
  2. Review
  3. Article
  4. Article
  5. Review
  6. Article
  7. The treatment landscape of triple-negative breast cancer.Medical oncology (Northwood, London, England) · 2024
    Review
  8. Review
  9. Article
  10. Strategy of combining CDK4/6 inhibitors with other therapies and mechanisms of resistance.International journal of clinical and experimental pathology · 2024
    Review
  11. Article
  12. Article
  13. Article
  14. Review
  15. Down-regulation ofAnnals of medicine and surgery (2012) · 2020
    Article
  16. Article
  17. Article
  18. Article
  19. Review
  20. Therapeutic Challenge with a CDK 4/6 Inhibitor Induces an RB-Dependent SMAC-Mediated Apoptotic Response in Non-Small Cell Lung Cancer.Clinical cancer research : an official journal of the American Association for Cancer Research · 2018
    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

8 authors at 1 institution in 1 country.

Ankur SharmaDepartment of Cell and Cancer Biology, University of Cincinnati College of Medicine, Cincinnati, Ohio 45267-0521, USA.
Clay E S Comstock
Erik S Knudsen
Khanh H Cao
Janet K Hess-Wilson
Lisa M Morey
Jason Barrera
Karen E Knudsen
University of Cincinnati Medical Center · US

Funding

Training Program in Cancer TherapeuticsT32CA117846 · NCI · UNIVERSITY OF CINCINNATI · PI PRICE, CAROLYN M, TAKIAR, VINITA · 2006 to 2022
$6.5M
Cyclin D1: repercussions of AR control and alternative splicing in prostate canceR01CA099996 · NCI · UNIVERSITY OF CINCINNATI · PI KNUDSEN, KAREN E · 2003 to 2013
$2.6M
Role of BAF57 in AR control and prostate cancer growthR01CA116777 · NCI · UNIVERSITY OF CINCINNATI · PI KNUDSEN, KAREN E · 2006 to 2010
$1.3M
RB-mediated replication controlR01CA106471 · NCI · UNIVERSITY OF CINCINNATI · PI KNUDSEN, ERIK · 2004 to 2008
$1.2M
Targeting BRM as novel model of prostate hyperplasiaR21CA121402 · NCI · UNIVERSITY OF CINCINNATI · PI KNUDSEN, KAREN E · 2006 to 2007
$321k
NCI NIH HHS CA099996NCI NIH HHS CA116777NCI NIH HHS R01 CA099996NCI NIH HHS R01 CA106471NCI NIH HHS R01 CA116777NCI NIH HHS R21 CA121402NCI NIH HHS T32 CA117846
6 · The paper itself

Abstract

The retinoblastoma tumor suppressor protein (RB), a critical mediator of cell cycle progression, is functionally inactivated in the majority of human cancers, including prostatic adenocarcinoma. The importance of RB tumor suppressor function in this disease is evident because 25% to 50% of prostatic adenocarcinomas harbor aberrations in RB pathway. However, no previous studies challenged the consequence of RB inactivation on tumor cell proliferation or therapeutic response. Here, we show that RB depletion facilitates deregulation of specific E2F target genes, but does not confer a significant proliferative advantage in the presence of androgen. However, RB-deficient cells failed to elicit a cytostatic response (compared with RB proficient isogenic controls) when challenged with androgen ablation, AR antagonist, or combined androgen blockade. These data indicate that RB deficiency can facilitate bypass of first-line hormonal therapies used to treat prostate cancer. Given the established effect of RB on DNA damage checkpoints, these studies were then extended to determine the impact of RB depletion on the response to cytotoxic agents used to treat advanced disease. In this context, RB-deficient prostate cancer cells showed enhanced susceptibility to cell death induced by only a selected subset of cytotoxic agents (antimicrotubule agents and a topoisomerase inhibitor). Combined, these data indicate that RB depletion dramatically alters the cellular response to therapeutic intervention in prostate cancer cells and suggest that RB status could potentially be developed as a marker for effectively directing therapy.

Indexed as

Gene Expression Regulation, NeoplasticGenes, Tumor SuppressorAndrogensBromodeoxyuridineCell CycleCell Line, TumorCell ProliferationCell SurvivalHumansMaleProstatic NeoplasmsReceptors, AndrogenRetinoblastoma ProteinTime FactorsTransfectionAndrogensBromodeoxyuridineReceptors, AndrogenRetinoblastoma Protein

Identifiers

PMID17616676
PMCPMC4133940
OpenAlexW2125037952

What OpenQuestion holds

Textmetadata
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.