Evidence map›Paper›PMID 32080884›Full record

ArticleThe EMBO journal2020

SMCHD1 promotes ATM-dependent DNA damage signaling and repair of uncapped telomeres.

Aleksandra Vančevska, Wareed Ahmed, Verena Pfeiffer, Marianna Feretzaki, Simon J Boulton, Joachim Lingner

Open access · bronzeAbstract read
In one paragraph

Article in The EMBO journal, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
1.8field-weighted citation impact, top 15% 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

16 citing papers in PubMed, 22 citations in OpenAlex.

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  16. POT1-TPP1 telomere length regulation and disease.Computational and structural biotechnology journal · 2020
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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

6 authors at 2 institutions in 2 countries.

Aleksandra VančevskaSwiss Institute for Experimental Cancer Research (ISREC), School of Life Sciences, Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland.
Wareed Ahmed *Swiss Institute for Experimental Cancer Research (ISREC), School of Life Sciences, Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland.
Verena Pfeiffer *Swiss Institute for Experimental Cancer Research (ISREC), School of Life Sciences, Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland.
Marianna FeretzakiSwiss Institute for Experimental Cancer Research (ISREC), School of Life Sciences, Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland.
Simon J BoultonThe Francis Crick Institute, London, UK.
Joachim LingnerSwiss Institute for Experimental Cancer Research (ISREC), School of Life Sciences, Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland.ORCID 0000-0002-2853-5803
École Polytechnique Fédérale de Lausanne · CHThe Francis Crick Institute · GB

Funding

Krebsforschung Schweiz (Swiss Cancer Research) KLS-3824-02-2016NCCR RNA & Disease 182880Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung (SNF) 310030_184718
6 · The paper itself

Abstract

Structural maintenance of chromosomes flexible hinge domain-containing protein 1 (SMCHD1) has been implicated in X-chromosome inactivation, imprinting, and DNA damage repair, and mutations in SMCHD1 can cause facioscapulohumeral muscular dystrophy. More recently, SMCHD1 has also been identified as a component of telomeric chromatin. Here, we report that SMCHD1 is required for DNA damage signaling and non-homologous end joining (NHEJ) at unprotected telomeres. Co-depletion of SMCHD1 and the shelterin subunit TRF2 reduced telomeric 3'-overhang removal in time-course experiments, as well as the number of chromosome end fusions. SMCHD1-deficient cells displayed reduced ATM S1981 phosphorylation and diminished formation of γH2AX foci and of 53BP1-containing telomere dysfunction-induced foci (TIFs), indicating defects in DNA damage checkpoint signaling. Removal of TPP1 and subsequent activation of ATR signaling rescued telomere fusion events in TRF2-depleted SMCHD1 knockout cells. Together, these data indicate that SMCHD1 depletion reduces telomere fusions in TRF2-depleted cells due to defects in ATM-dependent checkpoint signaling and that SMCHD1 mediates DNA damage response activation upstream of ATM phosphorylation at uncapped telomeres.

Indexed as

Ataxia Telangiectasia Mutated ProteinsChromosomal Proteins, Non-HistoneDNA DamageDNA End-Joining RepairEpistasis, GeneticGene Knockout TechniquesHeLa CellsHumansPhosphorylationShelterin ComplexSignal TransductionTelomereTelomere-Binding ProteinsTelomeric Repeat Binding Protein 2Tumor Suppressor p53-Binding Protein 1ACD protein, humanAtaxia Telangiectasia Mutated ProteinsATM protein, humanChromosomal Proteins, Non-HistoneShelterin ComplexSMCHD1 protein, humanTelomere-Binding ProteinsTelomeric Repeat Binding Protein 2TERF2 protein, humanTP53BP1 protein, humanTumor Suppressor p53-Binding Protein 1ATMDNA damage responsenon-homologous end joiningSMCHD1telomeres

Identifiers

PMID32080884
PMCPMC7110143
OpenAlexW3007883150

What OpenQuestion holds

Textmetadata
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.