Evidence map›Paper›PMID 21946536›Full record

ArticleNature medicine2011

Tumor suppressor BRCA1 epigenetically controls oncogenic microRNA-155.

Suhwan Chang, Rui-Hong Wang, Keiko Akagi, Kyung-Ae Kim, Betty K Martin, Luca Cavallone, Kathleen Cuningham Foundation Consortium for Research into Familial Breast Cancer (kConFab), Diana C Haines, Mark Basik, Phuong Mai and 9 more

Erratum issuedAbstract read
In one paragraph

Article in Nature medicine, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 134 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
134citing papers in PubMed, 2 pooled it
11.3field-weighted citation impact, top 1% 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

134 citing papers in PubMed, 2 syntheses or guidelines pooled it, 221 citations in OpenAlex.

  1. Pooled it
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  15. MicroRNA-155-5p, Reduced by Curcumin-Re-Expressed HypermethylatedInternational journal of molecular sciences · 2023
    Article
  16. Review
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  18. HDAC2 as a target for developing anti-cancer drugs.Computational and structural biotechnology journal · 2023
    Review
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  20. Article

74 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

19 authors at 9 institutions in 3 countries.

Suhwan ChangMouse Cancer Genetics Program, Center for Cancer Research, National Cancer Institute at Frederick, Frederick, Maryland, USA.
Rui-Hong Wang
Keiko Akagi
Kyung-Ae Kim
Betty K Martin
Luca Cavallone
Kathleen Cuningham Foundation Consortium for Research into Familial Breast Cancer (kConFab)
Diana C Haines
Mark Basik
Phuong Mai
Elizabeth Poggi
Claudine Isaacs
Lai M Looi
Kein S Mun
Mark H Greene
Stephen W Byers
Soo H Teo
Chu-Xia Deng
Shyam K Sharan
National Cancer Institute · USCenter for Cancer Research · USGeorgetown University · USNational Institute of Diabetes and Digestive and Kidney Diseases · USUniversity Malaya Medical Centre · MYCancer Genetics (United States) · USJewish General Hospital · CAMcGill University · CASubang Jaya Medical Centre · MY

Funding

Clinical Genetic Studies of Familial and Hereditary Cancer SyndromesZIACP010144 · NCI · DIVISION OF CANCER EPIDEMIOLOGY AND GENETICS · PI SAVAGE, SHARON A. · 2009 to 2025
$111.8M
Functional Evaluation of BRCA2 Variants on TumorigenesisZIABC010387 · NCI · DIVISION OF BASIC SCIENCES - NCI · PI SHARAN, SHYAM · 2009 to 2025
$12.5M
Functional Analysis of Variants Identified in Human Breast Cancer SusceptibilityZIABC011181 · NCI · DIVISION OF BASIC SCIENCES - NCI · PI SHARAN, SHYAM · 2009 to 2025
$11.6M
Intramural NIH HHS ZIA BC010387Intramural NIH HHS ZIA BC011181
6 · The paper itself

Abstract

BRCA1, a well-known tumor suppressor with multiple interacting partners, is predicted to have diverse biological functions. However, so far its only well-established role is in the repair of damaged DNA and cell cycle regulation. In this regard, the etiopathological study of low-penetrant variants of BRCA1 provides an opportunity to uncover its other physiologically important functions. Using this rationale, we studied the R1699Q variant of BRCA1, a potentially moderate-risk variant, and found that it does not impair DNA damage repair but abrogates the repression of microRNA-155 (miR-155), a bona fide oncomir. Mechanistically, we found that BRCA1 epigenetically represses miR-155 expression via its association with HDAC2, which deacetylates histones H2A and H3 on the miR-155 promoter. We show that overexpression of miR-155 accelerates but the knockdown of miR-155 attenuates the growth of tumor cell lines in vivo. Our findings demonstrate a new mode of tumor suppression by BRCA1 and suggest that miR-155 is a potential therapeutic target for BRCA1-deficient tumors.

Indexed as

Analysis of VarianceBlotting, SouthernBRCA1 ProteinChromatin ImmunoprecipitationDNA RepairEpigenesis, GeneticFemaleGene Expression Regulation, NeoplasticHistone Deacetylase 2HumansImmunohistochemistryImmunoprecipitationIn Situ HybridizationMicroarray AnalysisMicroRNAsMutation, MissenseBRCA1 ProteinBRCA1 protein, humanHDAC2 protein, humanHistone Deacetylase 2MicroRNAsMIRN155 microRNA, human

Identifiers

PMID21946536
PMCPMC3501198
OpenAlexW2146753265

What OpenQuestion holds

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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.