Evidence map›Paper›PMID 30393977›Full record

ArticleMolecular genetics & genomic medicine2018

CTC1 mutations in a Brazilian family with progeroid features and recurrent bone fractures.

Forough Sargolzaeiaval, Jiaming Zhang, Jennifer Schleit, Davor Lessel, Christian Kubisch, Debora R Precioso, David Sillence, Fuki M Hisama, Michael Dorschner, George M Martin and 1 more

Open access · goldAbstract readCase Reports
In one paragraph

Article in Molecular genetics & genomic medicine, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
1.2field-weighted citation impact, top 20% 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

21 citing papers in PubMed, 25 citations in OpenAlex.

  1. Clonal Signatures of Telomere Biology Disorders.Current hematologic malignancy reports · 2026
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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

11 authors at 6 institutions in 5 countries.

Forough SargolzaeiavalDepartment of Pathology, University of Washington, Seattle, Washington.
Jiaming ZhangDepartment of Pathology, University of Washington, Seattle, Washington.
Jennifer SchleitDepartment of Pathology, University of Washington, Seattle, Washington.
Davor LesselInstitute of Human Genetics, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.
Christian KubischInstitute of Human Genetics, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.
Debora R PreciosoSarah Network of Rehabilitation Hospitals, Belo Horizonte, Brazil.
David SillenceDiscipline of Genetic Medicine, Westmead Clinical School, Sydney Faculty of Medicine and Health, Westmead, Australia.
Fuki M HisamaDivision of Medical Genetics, Department of Medicine, University of Washington, Seattle, Washington.
Michael DorschnerDepartment of Pathology, University of Washington, Seattle, Washington.
George M MartinDepartment of Pathology, University of Washington, Seattle, Washington.
Junko OshimaDepartment of Pathology, University of Washington, Seattle, Washington.ORCID 0000-0001-5941-3799
University of Washington · USUniversität Hamburg · DEChiba University · JPSarah Network of Rehabilitation Hospitals · BRUniversity of Washington Medical Center · USWestmead Hospital · AU

Funding

International Registry of Werner SyndromeR01CA210916 · NCI · UNIVERSITY OF WASHINGTON · PI JUNKO OSHIMA · 2016 to 2026
$3.8M
NCI NIH HHS R01 CA210916
6 · The paper itself

Abstract

backgroundCerebroretinal microangiopathy with calcifications and cysts (CRMCC) is an autosomal recessive disorder caused by pathogenic variants of the conserved telomere maintenance component 1 (CTC1) gene. The CTC1 forms the telomeric capping complex, CST, which functions in telomere homeostasis and replication.

methodsA Brazilian pedigree and an Australian pedigree were referred to the International Registry of Werner Syndrome (Seattle, WA, USA), with clinical features of accelerated aging and recurrent bone fractures. Whole exome sequencing was performed to identify the genetic causes.

resultsWhole exome sequencing of the Brazilian pedigree revealed compound heterozygous pathogenic variants in CTC1: a missense mutation (c.2959C>T, p.Arg987Trp) and a novel stop codon change (c.322C>T, p.Arg108*). The Australian patient carried two novel heterozygous CTC1 variants, c.2916G>T, p.Val972Gly and c.2926G>T, p.Val976Phe within the same allele. Both heterozygous variants were inherited from the unaffected father, excluding the diagnosis of CRMCC in this pedigree. Cell biological studies demonstrated accumulation of double strand break foci in lymphoblastoid cell lines derived from the patients. Increased DSB foci were extended to non-telomeric regions of the genome, in agreement with previous biochemical studies showing a preferential binding of CTC1 protein to GC-rich sequences.

conclusionCTC1 pathogenic variants can present with unusual manifestations of progeria accompanied with recurrent bone fractures. Further studies are needed to elucidate the disease mechanism leading to the clinical presentation with intra-familial variations of CRMCC.

Indexed as

MutationPhenotypeAdultCell LineDNA Breaks, Double-StrandedFemaleFractures, BoneGC Rich SequenceGenomic InstabilityHumansMaleMiddle AgedPedigreeProtein BindingTelomereTelomere-Binding ProteinsCtc1 protein, humanTelomere-Binding ProteinsCTC1genomic instabilityMendelian disordersmolecular geneticsprogeroid syndrometelomeres

Identifiers

PMID30393977
PMCPMC6305643
OpenAlexW2899622243

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Registered trials

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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.