Evidence map›Paper›PMID 32182354›Full record

ArticleNucleic acids research2020

Ectopic RNF168 expression promotes break-induced replication-like DNA synthesis at stalled replication forks.

John J Krais, Neil Johnson

Open access · goldAbstract read
In one paragraph

Article in Nucleic acids research, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
1.1field-weighted citation impact, top 24% 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

15 citing papers in PubMed, 24 citations in OpenAlex.

  1. Article
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  9. Emerging Roles of RNF168 in Tumor Progression.Molecules (Basel, Switzerland) · 2023
    Review
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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

2 authors at 1 institution in 1 country.

John J KraisMolecular Therapeutics Program, Fox Chase Cancer Center, Philadelphia, PA 19111, USA.
Neil JohnsonMolecular Therapeutics Program, Fox Chase Cancer Center, Philadelphia, PA 19111, USA.
Fox Chase Cancer Center · US

Funding

WORD PROCESSING CENTER--COREP30CA006927 · NCI · RESEARCH INST OF FOX CHASE CAN CTR · PI Margaret von Mehren · 1985 to 2026
$138.8M
Therapeutic Micro RNA Strategies for Ovarian CancerP50CA083638 · NCI · RESEARCH INST OF FOX CHASE CAN CTR · PI GODWIN, ANDREW K., GOLEMIS, ERICA A. · 1999 to 2013
$33.6M
TRAINING PROGRAM IN CANCER RESEARCHT32CA009035 · NCI · RESEARCH INST OF FOX CHASE CAN CTR · PI CHERNOFF, JONATHAN · 1985 to 2020
$10.5M
Compensatory Mechanisms that Promote Homologous Recombination in BRCA1 Mutant CancersR01CA214799 · NCI · RESEARCH INST OF FOX CHASE CAN CTR · PI Neil Johnson · 2017 to 2026
$4.3M
NCI NIH HHS P30 CA006927NCI NIH HHS P50 CA083638NCI NIH HHS R01 CA214799NCI NIH HHS T32 CA009035
6 · The paper itself

Abstract

The RNF168 E3 ubiquitin ligase is activated in response to double stranded DNA breaks (DSBs) where it mono-ubiquitinates γH2AX (ub-H2AX). RNF168 protein expression and ubiquitin signaling are finely regulated during the sensing, repair and resolution of DNA damage in order to avoid excessive spreading of ubiquitinated chromatin. Supra-physiological RNF168 protein expression levels have been shown to block DNA end resection at DSBs and increase PARP inhibitor (PARPi) sensitivity. In this study, we examined the impact of ectopic RNF168 overexpression on hydroxyurea (HU)-induced stalled replication forks in the setting of BRCA1 deficiency. Surprisingly, RNF168 overexpression resulted in the extension of DNA fibers, despite the presence of HU, in BRCA1 deficient cells. Mechanistically, RNF168 overexpression recruited RAD18 to ub-H2AX at HU-induced DNA breaks. Subsequently, a RAD18-SLF1 axis was responsible for initiating DNA synthesis in a manner that also required the break-induced replication (BIR) factors RAD52 and POLD3. Strikingly, the presence of wild-type BRCA1 blocked RNF168-induced DNA synthesis. Notably, BIR-like repair has previously been linked with tandem duplication events found in BRCA1-mutated genomes. Thus, in the absence of BRCA1, excessive RNF168 expression may drive BIR, and contribute to the mutational signatures observed in BRCA1-mutated cancers.

Indexed as

DNA Breaks, Double-StrandedDNA ReplicationBRCA1 ProteinCell LineDNADNA-Binding ProteinsHistonesHydroxyureaRecombinational DNA RepairUbiquitinationUbiquitin-Protein LigasesBRCA1 ProteinDNADNA-Binding ProteinsHistonesHydroxyureaUbiquitin-Protein Ligases

Identifiers

PMID32182354
PMCPMC7192614
OpenAlexW3011701671

What OpenQuestion holds

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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.