Evidence map›Paper›PMID 20660013›Full record

ArticleNucleic acids research2010

PARP1 suppresses homologous recombination events in mice in vivo.

Alison Claybon, Bijal Karia, Crystal Bruce, Alexander J R Bishop

Open access · goldAbstract read
In one paragraph

Article in Nucleic acids research, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
1.7field-weighted citation impact, top 16% 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

18 citing papers in PubMed, 28 citations in OpenAlex.

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  14. Genetically defined subsets of human pancreatic cancer show unique in vitro chemosensitivity.Clinical cancer research : an official journal of the American Association for Cancer Research · 2012
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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

4 authors at 2 institutions in 1 country.

Alison ClaybonGreehey Children's Cancer Research Institute, Department of Cellular and Structural Biology, The University of Texas Health Science Center at San Antonio, San Antonio, TX 78229, USA.
Bijal Karia
Crystal Bruce
Alexander J R Bishop
The University of Texas Health Science Center at San Antonio · USOklahoma State University Oklahoma City · US

Funding

A screen for damage response genes using recombinationK22ES012264 · NIEHS · UNIVERSITY OF TEXAS HLTH SCIENCE CENTER · PI BISHOP, ALEXANDER JAMES · 2004 to 2006
$321k
NIEHS NIH HHS K22ES012264
6 · The paper itself

Abstract

Recent studies suggest that PARP1 inhibitors, several of which are currently in clinical trial, may selectively kill BRCA1/2 mutant cancers cells. It is thought that the success of this therapy is based on immitigable lethal DNA damage in the cancer cells resultant from the concurrent loss or inhibition of two DNA damage repair pathways: single-strand break (SSB) repair and homologous recombination repair (HRR). Presumably, inhibition of PARP1 activity obstructs the repair of SSBs and during DNA replication, these lesions cause replication fork collapse and are transformed into substrates for HRR. In fact, several previous studies have indicated a hyper-recombinogenic phenotype in the absence of active PARP1 in vitro or in response to DNA damaging agents. In this study, we demonstrate an increased frequency of spontaneous HRR in vivo in the absence of PARP1 using the p(un) assay. Furthermore, we found that the HRR events that occur in Parp1 nullizygous mice are associated with a significant increase in large, clonal events, as opposed to the usually more frequent single cell events, suggesting an effect in replicating cells. In conclusion, our data demonstrates that PARP1 inhibits spontaneous HRR events, and supports the model of DNA replication transformation of SSBs into HRR substrates.

Indexed as

Recombination, GeneticAnimalsCarrier ProteinsCells, CulturedMembrane ProteinsMiceMice, KnockoutPoly (ADP-Ribose) Polymerase-1Poly(ADP-ribose) PolymerasesRad51 RecombinaseCarrier ProteinsMembrane ProteinsParp1 protein, mousePoly (ADP-Ribose) Polymerase-1Poly(ADP-ribose) PolymerasesP protein, mouseRad51 protein, mouseRad51 Recombinase

Identifiers

PMID20660013
PMCPMC2995050
OpenAlexW2137408964

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.