Evidence map›Paper›PMID 22957306›Full record

ArticleAmerican journal of cancer research2012

BRCA1 proteins regulate growth of ovarian cancer cells by tethering Ubc9.

Yunlong Qin, Jingyao Xu, Kartik Aysola, Gabriela Oprea, Avinash Reddy, Roland Matthews, Joel Okoli, Alan Cantor, William E Grizzle, Edward E Partridge and 3 more

Open access · greenAbstract read
In one paragraph

Article in American journal of cancer research, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed
0.7field-weighted citation impact, top 33% 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

8 citing papers in PubMed, 13 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
  4. Article
  5. Epithelial ovarian cancer: An overview.World journal of translational medicine · 2014
    Article
  6. Article
  7. Article
  8. 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

13 authors.

Yunlong Qin
Jingyao Xu
Kartik Aysola
Gabriela Oprea
Avinash Reddy
Roland Matthews
Joel Okoli
Alan Cantor
William E Grizzle
Edward E Partridge
E Shyam P Reddy
Charles Landen
Veena N Rao

Funding

Morehouse School of Medicine Center of Excellence Research Endowment ProgramS21MD000101 · NIMHD · MOREHOUSE SCHOOL OF MEDICINE · PI MONTGOMERY-RICE, VALERIE C. · 2001 to 2015
$74.3M
TRANSCRIPTION FACTORS AND PROSTATE CANCERG12RR003034 · NCRR · MOREHOUSE SCHOOL OF MEDICINE · PI PARKER, DOROTHEA · 1986 to 2011
$32.4M
TRAINING AND CAREER DEVELOPMENTU54CA118948 · NCI · UNIVERSITY OF ALABAMA AT BIRMINGHAM · PI Timiya S Nolan · 2005 to 2026
$26.6M
Research Training & Career Development ProgramU54CA118638 · NCI · MOREHOUSE SCHOOL OF MEDICINE · PI Brian M. Rivers · 2005 to 2026
$22.7M
Research Education CoreU54CA118623 · NCI · TUSKEGEE UNIVERSITY · PI STEPHEN O SODEKE · 2005 to 2026
$20.2M
WARCEFP20RR011104 · NCRR · MOREHOUSE SCHOOL OF MEDICINE · PI MENG, YUAN-XIANG · 1995 to 2009
$14.5M
INFRASTRUCTURE IIG12MD007585 · NIMHD · TUSKEGEE UNIVERSITY · PI YATES, CLAYTON · 2012 to 2016
$4.6M
NCI NIH HHS U54 CA118623NCI NIH HHS U54 CA118638NCI NIH HHS U54 CA118948NCRR NIH HHS G12 RR003034NCRR NIH HHS P20 RR011104NIMHD NIH HHS G12 MD007585NIMHD NIH HHS S21 MD000101
6 · The paper itself

Abstract

Mutation in the BRCA1 gene is associated with increased risk for hereditary breast and ovarian cancers. In sporadic ovarian tumors, BRCA1 dysfunction is thought to be common. BRCA1 is a nuclear-cytoplasm shuttling protein. Our group has previously reported that BRCA1 proteins, unlike K109R and cancer-predisposing mutant C61G BRCA1 proteins, bind the sole SUMO E2-conjugating enzyme Ubc9. In this study, we examined the result of altered Ubc9 binding and knockdown on the sub-cellular localization and growth inhibitory function of BRCA1 proteins in ovarian cancer cells. Using live imaging of YFP, RFP-tagged BRCA1 and BRCA1a proteins, our results show enhanced cytoplasmic localization of K109R and C61G mutant BRCA1 proteins in ES-2, NIHOVCAR3 and UWB 1.289 ovarian cancer cells. Down-regulation of Ubc9 in ovarian cancer cells using Ubc9 siRNA resulted in cytoplasmic localization of BRCA1 and BRCA1a proteins. These mutant BRCA1a proteins were impaired in their capacity to inhibit growth of ES-2 ovarian cancer cells. Several ovarian cancer cells, including a BRCA1-null ovarian cancer cell line, showed higher levels of expression of Ubc9. This is the first study demonstrating the physiological link between loss of Ubc9 binding and loss of growth suppression of disease-associated mutant BRCA1a proteins in ovarian cancer cells. BRCA1, by turning off or on Ubc9 binding, regulates growth of ovarian cancers.

Indexed as

BRCA1BRCA1aGrowth suppressionnuclear importOvarian cancerRING domain mutantsUbc9

Identifiers

PMID22957306
PMCPMC3433105
OpenAlexW1540769394

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.