Evidence map›Paper›PMID 33327380›Full record

ArticleInternational journal of molecular sciences2020

Low Repair Capacity of DNA Double-Strand Breaks Induced by Laser-Driven Ultrashort Electron Beams in Cancer Cells.

Nelly Babayan, Natalia Vorobyeva, Bagrat Grigoryan, Anna Grekhova, Margarita Pustovalova, Sofya Rodneva, Yuriy Fedotov, Gohar Tsakanova, Rouben Aroutiounian, Andreyan Osipov

Open access · goldAbstract read
In one paragraph

Article in International journal of molecular sciences, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
3.1field-weighted citation impact, top 9% 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

12 citing papers in PubMed, 24 citations in OpenAlex.

  1. Dimer-Specific FokT-seq Reveals DNA-Binding Dimerization and Novel Genomic Targets of TDP-43.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2025
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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 at 5 institutions in 2 countries.

Nelly BabayanInstitute of Molecular Biology NASRA, 7 Hasratyan, Yerevan 0014, Armenia.
Natalia VorobyevaState Research Center-Burnasyan Federal Medical Biophysical Center of Federal Medical Biological Agency, 46 Zhivopisnaya, 123182 Moscow, Russia.
Bagrat GrigoryanCANDLE Synchrotron Research Institute, 31 Acharyan, Yerevan 0040, Armenia.ORCID 0000-0003-4749-440X
Anna GrekhovaSemenov Institute of Chemical Physics, Russian Academy of Sciences, 4 Kosygina, 119991 Moscow, Russia.
Margarita PustovalovaMoscow Institute of Physics and Technology, 9 Institutskiy per., Dolgoprudny, 141700 Moscow, Russia.
Sofya RodnevaState Research Center-Burnasyan Federal Medical Biophysical Center of Federal Medical Biological Agency, 46 Zhivopisnaya, 123182 Moscow, Russia.
Yuriy FedotovState Research Center-Burnasyan Federal Medical Biophysical Center of Federal Medical Biological Agency, 46 Zhivopisnaya, 123182 Moscow, Russia.ORCID 0000-0003-1552-2955
Gohar TsakanovaInstitute of Molecular Biology NASRA, 7 Hasratyan, Yerevan 0014, Armenia.ORCID 0000-0003-2072-6397
Rouben AroutiounianFaculty of Biology, Yerevan State University, 1 Manoogian, Yerevan 0025, Armenia.
Andreyan OsipovState Research Center-Burnasyan Federal Medical Biophysical Center of Federal Medical Biological Agency, 46 Zhivopisnaya, 123182 Moscow, Russia.ORCID 0000-0001-5921-9056
A. Alikhanyan National Laboratory · AMFederal Medical-Biological Agency · RUMoscow Institute of Physics and Technology · RUSemenov Institute of Chemical Physics · RUYerevan State University · AM

Funding

Russian Science Foundation 19-14-00151
6 · The paper itself

Abstract

Laser-driven accelerators allow to generate ultrashort (from femto- to picoseconds) high peak dose-rate (up to tens of GGy/s) accelerated particle beams. However, the radiobiological effects of ultrashort pulsed irradiation are still poorly studied. The aim of this work was to compare the formation and elimination of γH2AX and 53BP1 foci (well known markers for DNA double-strand breaks (DSBs)) in Hela cells exposed to ultrashort pulsed electron beams generated by Advanced Research Electron Accelerator Laboratory (AREAL) accelerator (electron energy 3.6 MeV, pulse duration 450 fs, pulse repetition rates 2 or 20 Hz) and quasi-continuous radiation generated by Varian accelerator (electron energy 4 MeV) at doses of 250-1000 mGy. Additionally, a study on the dose-response relationships of changes in the number of residual γH2AX foci in HeLa and A549 cells 24 h after irradiation at doses of 500-10,000 mGy were performed. We found no statistically significant differences in γH2AX and 53BP1 foci yields at 1 h after exposure to 2 Hz ultrashort pulse vs. quasi-continuous radiations. In contrast, 20 Hz ultrashort pulse irradiation resulted in 1.27-fold higher foci yields as compared to the quasi-continuous one. After 24 h of pulse irradiation at doses of 500-10,000 mGy the number of residual γH2AX foci in Hela and A549 cells was 1.7-2.9 times higher compared to that of quasi-continuous irradiation. Overall, the obtained results suggest the slower repair rate for DSBs induced by ultrashort pulse irradiation in comparison to DSBs induced by quasi-continuous irradiation.

Indexed as

LasersRadiation, IonizingA549 CellsDNA Breaks, Double-StrandedDNA RepairHeLa CellsHistonesHumansTumor Suppressor p53-Binding Protein 1H2AX protein, humanHistonesTumor Suppressor p53-Binding Protein 153BP1cancer cellsDNA double-strand breaksionizing radiationlaser-driven acceleratorsultrashort pulsed electron beamγH2AX

Identifiers

PMID33327380
PMCPMC7764904
OpenAlexW3113101952

What OpenQuestion holds

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LicenceCC BY
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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.