Cited by 331Cutaneous Melanoma Detection and ManagementTelomeres, Telomerase, and SenescenceGenetic factors in colorectal cancer

Rare missense variants in POT1 predispose to familial cutaneous malignant melanoma

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NCI DCEG Cancer Sequencing Working Group, Shi, Jianxin, NCI DCEG Cancer Genomics Research Laboratory, French Familial Melanoma Study Group, Yang, Xiaohong R, Ballew, Bari, Rotunno, Melissa, Calista, Donato +44 more·2014·Nature Genetics

Abstract

Although CDKN2A is the most frequent high-risk melanoma susceptibility gene, the underlying genetic factors for most melanoma-prone families remain unknown. Using whole-exome sequencing, we identified a rare variant that arose as a founder mutation in the telomere shelterin gene POT1 (chromosome 7, g.124493086C>T; p.Ser270Asn) in five unrelated melanoma-prone families from Romagna, Italy. Carriers of this variant had increased telomere lengths and numbers of fragile telomeres, suggesting that this variant perturbs telomere maintenance. Two additional rare POT1 variants were identified in all cases sequenced in two separate Italian families, one variant per family, yielding a frequency for POT1 variants comparable to that for CDKN2A mutations in this population. These variants were not found in public databases or in 2,038 genotyped Italian controls. We also identified two rare recurrent POT1 variants in US and French familial melanoma cases. Our findings suggest that POT1 is a major susceptibility gene for familial melanoma in several populations.

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  • Carriers of POT1 mutations have longer telomeres, likely because POT1-mediated inhibition of telomerase is lost.

    “Carriers of these mutations have longer telomeres, presumably owing to the loss of POT1-mediated inhibition of telomerase (BOX 1).”
  • Melanoma-predisposing POT1 mutations reduce POT1 binding to single-stranded telomeric DNA.

    “As a consequence, the ability of POT1 to bind to single-stranded telomeric DNA is diminished.”

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Authors
NCI DCEG Cancer Sequencing Working Group, Shi, J., Laboratory, N. D. C. G. R., French Familial Melanoma Study Group, Yang, X. R., Ballew, B., Rotunno, M., Calista, D., Fargnoli, M. C., Ghiorzo, P., Bressac-de Paillerets, B., Nagore, E., Avril, M. F., Caporaso, N. E., McMaster, M. L., Cullen, M., Wang, Z., Zhang, X., Bruno, W., Pastorino, L., Queirolo, P., Banuls-Roca, J., Garcia-Casado, Z., Vaysse, A., Mohamdi, H., Riazalhosseini, Y., Foglio, M., Jouenne, F., Hua, X., Hyland, P. L., Yin, J., Vallabhaneni, H., Chai, W., Minghetti, P., Pellegrini, C., Ravichandran, S., Eggermont, A., Lathrop, M., Peris, K., Scarra, G. B., Landi, G., Savage, S. A., Sampson, J. N., He, J., Yeager, M., Goldin, L. R., Demenais, F., Chanock, S. J., Tucker, M. A., Goldstein, A. M., Liu, Y., & Landi, M. T.
Affiliations
  • National Institutes of Health (US)
  • Ospedale “M. Bufalini” di Cesena (IT)
  • University of L'Aquila (IT)
  • Fundación Instituto Valenciano de Oncología (ES)
  • Ospedale Policlinico San Martino (IT)
  • Hospital General Universitario de Alicante Doctor Balmis (ES)
  • Inserm (FR)
  • Institut Gustave Roussy (FR)
  • Washington State University Spokane (US)
  • Frederick National Laboratory for Cancer Research (US)
  • Université Paris-Sud (FR)
  • Fondation Jean Dausset-CEPH (FR)
Corresponding author
Landi, Maria Teresa
Venue
Nature Genetics
Published
2014-03-30
Volume
46
Issue
5
Pages
482-486
ISSN
  • 1061-4036 (ISSN-L)
  • 1546-1718
OpenAlex
W2051870471
Cited by
331
References
55
Citations by year
2026: 17 · 2025: 12 · 2024: 23 · 2023: 25 · 2022: 24 · 2021: 26 · 2020: 41 · 2019: 21 · 2018: 30 · 2017: 26 · 2016: 38 · 2015: 38 · 2014: 10
FWCI
18.04
Type
journal article
Language
en
Open access
Locations
  • Nature Genetics (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
  • CINECA IRIS Institutial Research Information System (University of Genoa) (submittedVersion)
  • Archivio Istituzionale della Ricerca - Università degli Studi dell Aquila (submittedVersion)
Funders
  • National Institutes of Health (HHSN261200800001C)
  • National Cancer Institute (HHSN261200800001E), Z01CP004410)
Topics
  • Health Sciences › Medicine › Oncology › Cutaneous Melanoma Detection and Management
  • Health Sciences › Medicine › Physiology › Telomeres, Telomerase, and Senescence
  • Health Sciences › Medicine › Pathology and Forensic Medicine › Genetic factors in colorectal cancer
Keywords
POT1, melanoma susceptibility, founder mutation, rare missense variants, telomere length, telomere fragility, telomere maintenance, CDKN2A, genetic susceptibility
MeSH terms
Shelterin Complex, Cutaneous Malignant Melanoma, Melanoma, Cutaneous Malignant, Amino Acid Sequence, Base Sequence, France, Humans, Italy, Melanoma, Models, Molecular, Molecular Sequence Data, Neoplasms, Connective Tissue, Pedigree, Skin Neoplasms, United States, Sequence Alignment, In Situ Hybridization, Fluorescence, Sequence Analysis, DNA, Computational Biology, Genetic Predisposition to Disease, Mutation, Missense, Telomere-Binding Proteins, Exome, Telomere Homeostasis

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