Evidence map›Paper›PMID 19471317›Full record

ArticleEuropean journal of human genetics : EJHG2009

Impact of BRCA1 and BRCA2 variants on splicing: clues from an allelic imbalance study.

Virginie Caux-Moncoutier, Sabine Pagès-Berhouet, Dorothée Michaux, Bernard Asselain, Laurent Castéra, Antoine De Pauw, Bruno Buecher, Marion Gauthier-Villars, Dominique Stoppa-Lyonnet, Claude Houdayer

Abstract readValidation Study
In one paragraph

Article in European journal of human genetics : EJHG, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed
–field-weighted citation impact
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

20 citing papers in PubMed.

  1. Trial
  2. Genes · 2024
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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.

Virginie Caux-MoncoutierInstitut Curie Hôpital, Paris, France.
Sabine Pagès-Berhouet
Dorothée Michaux
Bernard Asselain
Laurent Castéra
Antoine De Pauw
Bruno Buecher
Marion Gauthier-Villars
Dominique Stoppa-Lyonnet
Claude Houdayer

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Nearly one-half of BRCA1 and BRCA2 sequence variations are variants of uncertain significance (VUSs) and are candidates for splice alterations for example, by disrupting/creating splice sites. As out-of-frame splicing defects lead to a marked reduction of the level of the mutant mRNA cleared through nonsense-mediated mRNA decay, a cDNA-based test was developed to show the resulting allelic imbalance (AI). Fifty-four VUSs identified in 53 hereditary breast/ovarian cancer (HBOC) patients without BRCA1/2 mutation were included in the study. Two frequent exonic single-nucleotide polymorphisms on both BRCA1 and BRCA2 were investigated by using a semiquantitative single-nucleotide primer extension approach and the cDNA allelic ratios obtained were corrected using genomic DNA ratios from the same sample. A total of five samples showed AI. Subsequent transcript analyses ruled out the implication of VUS on AI and identified a deletion encompassing BRCA2 exons 12 and 13 in one sample. No sequence abnormality was found in the remaining four samples, suggesting implication of cis- or trans-acting factors in allelic expression regulation that might be disease causative in these HBOC patients. Overall, this study showed that AI screening is a simple way to detect deleterious splicing defects and that a major role for VUSs and deep intronic mutations in splicing anomalies is unlikely in BRCA1/2 genes. Methods to analyze gene expression and identify regulatory elements in BRCA1/2 are now needed to complement standard approaches to mutational analysis.

Indexed as

Allelic ImbalanceGenes, BRCA1Genes, BRCA2RNA SplicingBreast NeoplasmsFemaleHumansMutationOvarian NeoplasmsRegulatory Elements, Transcriptional

Identifiers

PMID19471317
PMCPMC2986693

What OpenQuestion holds

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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.