Evidence map›Paper›PMID 25043256›Full record

ArticleThe Journal of pathology2014

Up-regulation of the interferon-related genes in BRCA2 knockout epithelial cells.

Hong Xu, Jian Xian, Emmanuelle Vire, Steven McKinney, Vivien Wei, Jason Wong, Rebecca Tong, Tony Kouzarides, Carlos Caldas, Samuel Aparicio

Abstract read
In one paragraph

Article in The Journal of pathology, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
0.9field-weighted citation impact, top 28% 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

17 citing papers in PubMed, 30 citations in OpenAlex.

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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

10 authors at 4 institutions in 2 countries.

Hong XuDepartment of Molecular Oncology, British Columbia Cancer Agency, Vancouver, BC, Canada.
Jian Xian
Emmanuelle Vire
Steven McKinney
Vivien Wei
Jason Wong
Rebecca Tong
Tony Kouzarides
Carlos Caldas
Samuel Aparicio
BC Cancer Agency · CACancer Research UK Cambridge Center · GBThe Gurdon Institute · GBWellcome Trust · GB

Funding

Cancer Research UK 10827Cancer Research UK 16942Cancer Research UK 17001CIHR 103581-1CIHR 80157-1Wellcome Trust 092096
6 · The paper itself

Abstract

BRCA2 mutations are significantly associated with early-onset breast cancer, and the tumour-suppressing function of BRCA2 has been attributed to its involvement in homologous recombination (HR)-mediated DNA repair. In order to identify additional functions of BRCA2, we generated BRCA2-knockout HCT116 human colorectal carcinoma cells. Using genome-wide microarray analyses, we have discovered a link between the loss of BRCA2 and the up-regulation of a subset of interferon (IFN)-related genes, including APOBEC3F and APOBEC3G. The over-expression of IFN-related genes was confirmed in different human BRCA2(-/-) and mouse Brca2(-/-) tumour cell lines, and was independent of senescence and apoptosis. In isogenic wild-type BRCA2 cells, we observed over-expression of IFN-related genes after treatment with DNA-damaging agents, and following ionizing radiation. Cells with endogenous DNA damage because of defective BRCA1 or RAD51 also exhibited over-expression of IFN-related genes. Transcriptional activity of the IFN-stimulated response element (ISRE) was increased in BRCA2 knockout cells, and the expression of BRCA2 greatly decreased IFNα-stimulated ISRE reporter activity, suggesting that BRCA2 directly represses the expression of IFN-related genes through the ISRE. Finally, the colony-forming capacity of BRCA2 knockout cells was significantly reduced in the presence of either IFNβ or IFNγ, suggesting that IFNs may have potential as therapeutic agents in cancer cells with BRCA2 mutations. The GEO Accession No. for microarray analysis is GSE54830.

Indexed as

AnimalsBRCA2 ProteinCell Line, TumorChromatin ImmunoprecipitationGene Expression Regulation, NeoplasticGene Knockout TechniquesGenes, BRCA2HumansInterferonsMiceNeoplasmsOligonucleotide Array Sequence AnalysisReal-Time Polymerase Chain ReactionResponse ElementsReverse Transcriptase Polymerase Chain ReactionUp-RegulationBRCA2 ProteinInterferonsBRCA2DNA damageinterferon

Identifiers

PMID25043256
PMCPMC4882165
OpenAlexW1584527630

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.