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Title: | A mutation in the POT1 gene is responsible for cardiac angiosarcoma in TP53-negative Li-Fraumeni-like families |
Author: | Calvete, Oriol Martinez, Paula Garcia Pavia, Pablo Benitez Buelga, Carlos Paumard Hernández, Beatriz Fernandez, Victoria Dominguez, Fernando Salas, Clara Romero Laorden, Nuria Garcia Donas, Jesus Carrillo, Jaime Perona, Rosario Triviño, Juan Carlos Andrés, Raquel Cano, Juana María Rivera, Barbara Alonso Pulpon, Luis Setién, Fernando Esteller, Manel Rodriguez Perales, Sandra Bougeard, Gaelle Frebourg, Tierry Urioste, Miguel Blasco, María A. Benitez, Javier |
Keywords: | Tumors de parts toves Epigenètica Mutació (Biologia) Telòmer Soft tissue tumors Epigenetics Mutation (Biology) Telomere |
Issue Date: | 25-Sep-2015 |
Publisher: | Nature Publishing Group |
Abstract: | Cardiac angiosarcoma (CAS) is a rare malignant tumour whose genetic basis is unknown. Here we show, by whole-exome sequencing of a TP53-negative Li-Fraumeni-like (LFL) family including CAS cases, that a missense variant (p.R117C) in POT1 (protection of telomeres 1) gene is responsible for CAS. The same gene alteration is found in two other LFL families with CAS, supporting the causal effect of the identified mutation. We extend the analysis to TP53-negative LFL families with no CAS and find the same mutation in a breast AS family. The mutation is recently found once in 121,324 studied alleles in ExAC server but it is not described in any other database or found in 1,520 Spanish controls. In silico structural analysis suggests how the mutation disrupts POT1 structure. Functional and in vitro studies demonstrate that carriers of the mutation show reduced telomere-bound POT1 levels, abnormally long telomeres and increased telomere fragility. |
Note: | Reproducció del document publicat a: https://doi.org/10.1038/ncomms9383 |
It is part of: | Nature Communications, 2015, vol. 6, num. 8383 |
URI: | http://hdl.handle.net/2445/127443 |
Related resource: | https://doi.org/10.1038/ncomms9383 |
ISSN: | 2041-1723 |
Appears in Collections: | Articles publicats en revistes (Ciències Fisiològiques) Articles publicats en revistes (Institut d'lnvestigació Biomèdica de Bellvitge (IDIBELL)) |
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