Evidence map›Paper›PMID 29715291›Full record

ArticlePloS one2018

Interference with DNA repair after ionizing radiation by a pyrrole-imidazole polyamide.

Silvia Diaz-Perez, Nathanael Kane, Alexis A Kurmis, Fei Yang, Nicolas T Kummer, Peter B Dervan, Nicholas G Nickols

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
0.3field-weighted citation impact, top 43% 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

2 citing papers in PubMed, 4 citations in OpenAlex.

  1. Article
  2. Review
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

7 authors at 2 institutions in 1 country.

Silvia Diaz-PerezDepartment of Radiation Oncology, University of California, Los Angeles, California, United States of America.
Nathanael KaneDepartment of Radiation Oncology, University of California, Los Angeles, California, United States of America.
Alexis A KurmisDivision of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California, United States of America.
Fei YangDivision of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California, United States of America.
Nicolas T KummerDepartment of Radiation Oncology, University of California, Los Angeles, California, United States of America.
Peter B DervanDivision of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California, United States of America.ORCID 0000-0001-8852-7306
Nicholas G NickolsDepartment of Radiation Oncology, University of California, Los Angeles, California, United States of America.ORCID 0000-0002-3131-9212
University of California, Los Angeles · USCalifornia Institute of Technology · US

Funding

SEQUENCE SPECIFIC RECOGNITION OF DOUBLE HELICAL DNAR01GM027681 · NIGMS · CALIFORNIA INSTITUTE OF TECHNOLOGY · PI DERVAN, PETER B · 1985 to 2017
$4.5M
Programmable DNA-binders as radio-modulators and therapeutics for prostate cancerIK2BX002520 · VA · VA GREATER LOS ANGELES HEALTHCARE SYSTEM · PI NICKOLS, NICHOLAS GEORGE · 2015 to 2017
–
BLRD VA IK2 BX002520NIGMS NIH HHS R01 GM027681
6 · The paper itself

Abstract

Pyrrole-imidazole (Py-Im) polyamides are synthetic non-genotoxic minor groove-binding small molecules. We hypothesized that Py-Im polyamides can modulate the cellular response to ionizing radiation. Pre-treatment of cells with a Py-Im polyamide prior to exposure to ionizing radiation resulted in a delay in resolution of phosphorylated γ-H2AX foci, increase in XRCC1 foci, and reduced cellular replication potential. RNA-sequencing of cell lines exposed to the polyamide showed induction of genes related to the ultraviolet radiation response. We observed that the polyamide is almost 10-fold more toxic to a cell line deficient in DNA ligase 3 as compared to the parental cell line. Alkaline single cell gel electrophoresis reveals that the polyamide induces genomic fragmentation in the ligase 3 deficient cell line but not the corresponding parental line. The polyamide interferes directly with DNA ligation in vitro. We conclude that Py-Im polyamides may be further explored as sensitizers to genotoxic therapies.

Indexed as

Cell Line, TumorDNADNA DamageDNA Ligase ATPDNA RepairHumansImidazolesNylonsPyrrolesRadiation, IonizingSmall Molecule LibrariesX-ray Repair Cross Complementing Protein 1DNADNA Ligase ATPimidazoleImidazolesNylonsPyrrolesSmall Molecule LibrariesX-ray Repair Cross Complementing Protein 1

Identifiers

PMID29715291
PMCPMC5929528
OpenAlexW2802114456

What OpenQuestion holds

Textmetadata
LicenceCC0
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.