Evidence map›Paper›PMID 29184099›Full record

ArticleScientific reports2017

Accurate quantification of homologous recombination in zebrafish: brca2 deficiency as a paradigm.

Jeroen Vierstraete, Andy Willaert, Petra Vermassen, Paul J Coucke, Anne Vral, Kathleen B M Claes

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed, 1 pooled it
0.6field-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

10 citing papers in PubMed, 1 synthesis or guideline pooled it, 16 citations in OpenAlex.

  1. Advancements in Zebrafish Models for Breast Cancer Research: Unveiling Biomarkers, Targeted Therapies, and Personalized Medicine.Medical science monitor : international medical journal of experimental and clinical research · 2023
    Pooled it
  2. Article
  3. Article
  4. Review
  5. Article
  6. Article
  7. DNA repair genes play a variety of roles in the development of fish embryos.Frontiers in cell and developmental biology · 2023
    Review
  8. Zebrafish Cancer Predisposition Models.Frontiers in cell and developmental biology · 2021
    Review
  9. Article
  10. 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

6 authors at 1 institution in 1 country.

Jeroen VierstraeteCenter for Medical Genetics Ghent, Ghent University Hospital, Ghent, Belgium.
Andy WillaertCenter for Medical Genetics Ghent, Ghent University Hospital, Ghent, Belgium.
Petra VermassenCenter for Medical Genetics Ghent, Ghent University Hospital, Ghent, Belgium.
Paul J CouckeCenter for Medical Genetics Ghent, Ghent University Hospital, Ghent, Belgium.
Anne VralDepartment for Basic Medical Sciences, Ghent University, Ghent, Belgium.
Kathleen B M ClaesCenter for Medical Genetics Ghent, Ghent University Hospital, Ghent, Belgium. Kathleen.Claes@UGent.be.ORCID 0000-0003-0841-7372
Ghent University Hospital · BE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Homologous Recombination (HR) repair is essential for repairing DNA double strand breaks (DSB) in dividing cells and preventing tumorigenesis. BRCA2 plays an important role in HR by recruiting the DNA recombinase RAD51 to the DSB. Despite being a popular model organism in genetic and cancer research, knowledge on the conservation of the HR pathway and function of zebrafish Brca2 is limited. To evaluate this, we developed a Rad51 foci assay in zebrafish embryos. We identified the zebrafish embryonic intestinal tissue as an ideal target for Rad51 immunostaining. After inducing DSB through irradiation, Rad51 foci were present in irradiated embryos but not in unirradiated controls. We present a method for accurate quantification of HR. Both morpholino-induced knockdown and knockout of Brca2 lead to almost complete absence of Rad51 foci in irradiated embryos. These findings indicate conserved function of Brca2 in zebrafish. Interestingly, a statistically significant decrease in Rad51 foci was observed in Brca2 heterozygous carriers compared to wild types, indicative of haploinsufficiency, a hypothesised cause of some tumours in patients with a germline BRCA2 mutation. In conclusion, we demonstrated the suitability of zebrafish as an excellent in vivo model system for studying the HR pathway and its functionality.

Indexed as

Genetic TestingHomologous RecombinationAnimalsAnimals, Genetically ModifiedBRCA2 ProteinEmbryo, NonmammalianGene Knockdown TechniquesGenotyping TechniquesImmunohistochemistryRad51 RecombinaseRadiation, IonizingZebrafishZebrafish ProteinsBRCA2 Proteinbrca2 protein, zebrafishRad51 RecombinaseZebrafish Proteins

Identifiers

PMID29184099
PMCPMC5705637
OpenAlexW2768519858

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.