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Systematic analysis of noncoding somatic mutations and gene expression alterations across 14 tumor types
Department of Medical Biochemisty and Cell Biology, Institute of Biomedicine, The Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden.ORCID iD: 0000-0002-5763-6777
Department of Oncology, Institute of Clinical Sciences, The Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden.
Sahlgrenska Cancer Center, Department of Surgery, Institute of Clinical Sciences, The Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden.
Department of Medical Biochemisty and Cell Biology, Institute of Biomedicine, The Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden.
2014 (English)In: Nature Genetics, ISSN 1061-4036, E-ISSN 1546-1718, Vol. 46, no 12, p. 1258-1263Article in journal (Refereed) Published
Abstract [en]

Somatic mutations in noncoding sequences are poorly explored in cancer, a rare exception being the recent identification of activating mutations in TERT regulatory DNA. Although this finding is suggestive of a general mechanism for oncogene activation, this hypothesis remains untested. Here we map somatic mutations in 505 tumor genomes across 14 cancer types and systematically screen for associations between mutations in regulatory regions and RNA-level changes. We identify recurrent promoter mutations in several genes but find that TERT mutations are exceptional in showing a strong and genome-wide significant association with increased expression. Detailed analysis of TERT across cancers shows that the strength of this association is highly variable and is strongest in copy number stable cancers such as thyroid carcinoma. We additionally propose that TERT promoter mutations control expression of the nearby gene CLPTM1L. Our analysis provides a detailed pan-cancer view of TERT transcriptional activation but finds no clear evidence for frequent oncogenic promoter mutations beyond TERT.

Place, publisher, year, edition, pages
Nature Publishing Group, 2014. Vol. 46, no 12, p. 1258-1263
National Category
Cancer and Oncology
Identifiers
URN: urn:nbn:se:oru:diva-78920DOI: 10.1038/ng.3141ISI: 000345547300005PubMedID: 25383969Scopus ID: 2-s2.0-84922527340OAI: oai:DiVA.org:oru-78920DiVA, id: diva2:1383918
Funder
Swedish Foundation for Strategic Research Swedish Cancer SocietyMagnus Bergvall FoundationBioCARE - Biomarkers in Cancer Medicine Improving Health Care Education and Innovation
Note

Funding Agencies:

Swedish Medical Research Council (SMRC)

Ake Wiberg foundation  

Lars Hierta Memorial Foundation  

Region Västra Götaland 

Sahlgrenska Academy

Available from: 2020-01-09 Created: 2020-01-09 Last updated: 2020-01-15Bibliographically approved

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