Evidence map›Paper›PMID 37777505›Full record

ArticleNature communications2023

The RNA m5C modification in R-loops as an off switch of Alt-NHEJ.

Haibo Yang, Emily M Lachtara, Xiaojuan Ran, Jessica Hopkins, Parasvi S Patel, Xueping Zhu, Yao Xiao, Laiyee Phoon, Boya Gao, Lee Zou and 2 more

Open access · goldAbstract read
In one paragraph

Article in Nature communications, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 30 papers.

0numbers the graph read from it
0cells of the map it votes in
30citing papers in PubMed
4.9field-weighted citation impact, top 4% 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

30 citing papers in PubMed, 32 citations in OpenAlex.

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  14. RNA 5-Methylcytosine Modification in Myocardial Fibrosis.Reviews in cardiovascular medicine · 2025
    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

12 authors at 2 institutions in 1 country.

Haibo YangMassachusetts General Hospital Cancer Center, Harvard Medical School, Boston, MA, USA.
Emily M LachtaraMassachusetts General Hospital Cancer Center, Harvard Medical School, Boston, MA, USA.
Xiaojuan RanMassachusetts General Hospital Cancer Center, Harvard Medical School, Boston, MA, USA.
Jessica HopkinsMassachusetts General Hospital Cancer Center, Harvard Medical School, Boston, MA, USA.
Parasvi S PatelMassachusetts General Hospital Cancer Center, Harvard Medical School, Boston, MA, USA.
Xueping ZhuCenter for Immunology and Inflammatory Diseases, Division of Rheumatology, Allergy, and Immunology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA.
Yao XiaoMassachusetts General Hospital Cancer Center, Harvard Medical School, Boston, MA, USA.
Laiyee PhoonDepartments of Molecular Genetics and Microbiology, School of Medicine, Duke University, Durham, NC, USA.
Boya GaoMassachusetts General Hospital Cancer Center, Harvard Medical School, Boston, MA, USA.
Lee ZouMassachusetts General Hospital Cancer Center, Harvard Medical School, Boston, MA, USA.
Michael S LawrenceMassachusetts General Hospital Cancer Center, Harvard Medical School, Boston, MA, USA.ORCID http://orcid.org/0000-0002-1307-459X
Li LanMassachusetts General Hospital Cancer Center, Harvard Medical School, Boston, MA, USA. li.lan@duke.edu.ORCID http://orcid.org/0000-0003-0383-6172
Harvard University · USDuke University · US

Funding

Transcription-Coupled Homologous Recombination upon DNA DamageR01GM118833 · NIGMS · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI LAN, LI · 2016 to 2020
$1.6M
Understanding and Targeting the R-Loop-Mediated DNA Damage Response at TelomeresR01CA282939 · NCI · DUKE UNIVERSITY · PI Li Lan · 2023 to 2026
$1.5M
NCI NIH HHS R01 CA282939NIGMS NIH HHS R01 GM118833
6 · The paper itself

Abstract

The roles of R-loops and RNA modifications in homologous recombination (HR) and other DNA double-stranded break (DSB) repair pathways remain poorly understood. Here, we find that DNA damage-induced RNA methyl-5-cytosine (m5C) modification in R-loops plays a crucial role to regulate PARP1-mediated poly ADP-ribosylation (PARylation) and the choice of DSB repair pathways at sites of R-loops. Through bisulfite sequencing, we discover that the methyltransferase TRDMT1 preferentially generates m5C after DNA damage in R-loops across the genome. In the absence of m5C, R-loops activate PARP1-mediated PARylation both in vitro and in cells. Concurrently, m5C promotes transcription-coupled HR (TC-HR) while suppressing PARP1-dependent alternative non-homologous end joining (Alt-NHEJ), favoring TC-HR over Alt-NHEJ in transcribed regions as the preferred repair pathway. Importantly, simultaneous disruption of both TC-HR and Alt-NHEJ with TRDMT1 and PARP or Polymerase θ inhibitors prevents alternative DSB repair and exhibits synergistic cytotoxic effects on cancer cells, suggesting an effective strategy to exploit genomic instability in cancer therapy.

Indexed as

CytosineR-Loop StructuresDNA Breaks, Double-StrandedDNA End-Joining RepairDNA RepairRNACytosineRNA

Identifiers

PMID37777505
PMCPMC10542358
OpenAlexW4387209661

What OpenQuestion holds

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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.