Cited by 756Melanoma and MAPK PathwaysCancer Genomics and DiagnosticsCutaneous Melanoma Detection and Management

Melanoma genome sequencing reveals frequent PREX2 mutations

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Berger, Michael F., Hodis, Eran, Heffernan, Timothy P., Deribe, Yonathan Lissanu, Lawrence, Michael S., Protopopov, Alexei, Ivanova, Elena, Watson, Ian R. +40 more·2012·Nature

Abstract

Whole-genome sequencing of 25 metastatic melanomas and matched germline DNA in humans reveals that the highest mutation load is associated with chronic sun exposure, and that the PREX2 gene is mutated in approximately 14 per cent of cases Melanoma is a highly metastatic cancer, characterized by high lethality and rapid development of resistance to treatment. Whole-genome sequencing of 25 metastatic melanomas and matched germline DNA reveals that the mutation rate varies widely, with the highest mutation load associated with chronic exposure to sunlight. PREX2 — a PTEN-interacting protein previously implicated in breast cancer — is mutated in approximately 14% of cases. Although the precise role of PREX2 in melanoma remains to be elucidated, ectopic expression of its mutant form accelerates tumour formation of immortalized human melanocytes in vivo. Melanoma is notable for its metastatic propensity, lethality in the advanced setting and association with ultraviolet exposure early in life1. To obtain a comprehensive genomic view of melanoma in humans, we sequenced the genomes of 25 metastatic melanomas and matched germline DNA. A wide range of point mutation rates was observed: lowest in melanomas whose primaries arose on non-ultraviolet-exposed hairless skin of the extremities (3 and 14 per megabase (Mb) of genome), intermediate in those originating from hair-bearing skin of the trunk (5–55 per Mb), and highest in a patient with a documented history of chronic sun exposure (111 per Mb). Analysis of whole-genome sequence data identified PREX2 (phosphatidylinositol-3,4,5-trisphosphate-dependent Rac exchange factor 2)—a PTEN-interacting protein and negative regulator of PTEN in breast cancer2—as a significantly mutated gene with a mutation frequency of approximately 14% in an independent extension cohort of 107 human melanomas. PREX2 mutations are biologically relevant, as ectopic expression of mutant PREX2 accelerated tumour formation of immortalized human melanocytes in vivo. Thus, whole-genome sequencing of human melanoma tumours revealed genomic evidence of ultraviolet pathogenesis and discovered a new recurrently mutated gene in melanoma.

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  • Multiple genome-wide sequencing studies have revealed a paucity of NER gene defects in sporadic malignant melanoma within the general population.

    “In view of this, it may be surprising that multiple genome-wide sequencing studies have revealed a paucity of NER gene defects in sporadic MM within the general population (2, 6, 7).”

    From A genome-wide screen reveals that Dyrk1A kinase promotes nucleotide excision repair by preventing aberrant overexpression of cyclin D1 and p21 (2023) · cites this paper as [7]

    The paper’s Abstract (page unavailable) describes whole-genome sequencing of 25 metastatic melanomas and reports mutation patterns, but it does not assess whether NER gene defects are rare. Searches for NER, nucleotide excision repair, and DNA repair gene defects found no passage supporting the attributed finding. (LLM, conf=0.72)

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Authors
Berger, M. F., Hodis, E., Heffernan, T. P., Deribe, Y. L., Lawrence, M. S., Protopopov, A., Ivanova, E., Watson, I. R., Nickerson, E., Ghosh, P., Zhang, H., Zeid, R., Ren, X., Cibulskis, K., Sivachenko, A. Y., Wagle, N., Sucker, A., Sougnez, C., Onofrio, R., Ambrogio, L., Auclair, D., Fennell, T., Carter, S. L., Drier, Y., Stojanov, P., Singer, M. A., Voet, D., Jing, R., Saksena, G., Barretina, J., Ramos, A. H., Pugh, T. J., Stransky, N., Parkin, M., Winckler, W., Mahan, S., Ardlie, K., Baldwin, J., Wargo, J., Schadendorf, D., Meyerson, M., Gabriel, S. B., Golub, T. R., Wagner, S. N., Lander, E. S., Getz, G., Chin, L., & Garraway, L. A.
Affiliations
  • Broad Institute (US)
  • Dana-Farber Cancer Institute (US)
  • Harvard University (US)
  • Essen University Hospital (DE)
  • Weizmann Institute of Science (IL)
  • Massachusetts General Hospital (US)
  • Austrian Academy of Sciences (AT)
Corresponding author
  • Chin, Lynda
  • Garraway, Levi A.
Venue
Nature
Published
2012-05
Volume
485
Issue
7399
Pages
502-506
ISSN
  • 0028-0836 (ISSN-L)
  • 1476-4687
OpenAlex
W2149793889
Cited by
756
References
29
Citations by year
2026: 11 · 2025: 18 · 2024: 29 · 2023: 35 · 2022: 39 · 2021: 43 · 2020: 25 · 2019: 47 · 2018: 43 · 2017: 73 · 2016: 73 · 2015: 89 · 2014: 85 · 2013: 107 · 2012: 39
FWCI
41.17
Type
journal article
Language
en
Open access
Locations
  • Nature (publishedVersion, cc-by-nc-sa)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
  • Digital Access to Scholarship at Harvard (DASH) (Harvard University) (submittedVersion, cc-by)
  • RePEc: Research Papers in Economics (submittedVersion)
  • DSpace@MIT (Massachusetts Institute of Technology) (submittedVersion, cc-by-nc-sa)
Funders
  • Howard Hughes Medical Institute
  • Melanoma Research Alliance
  • Dana-Farber Cancer Institute
  • Wellcome Trust
  • Broad Institute
  • Austrian Science Fund
  • National Institutes of Health (DP2OD002750)
  • National Human Genome Research Institute (U54HG003067)
  • National Cancer Institute (R33CA155554, R33CA126674, T32CA009172)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Melanoma and MAPK Pathways
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cancer Research › Cancer Genomics and Diagnostics
  • Health Sciences › Medicine › Oncology › Cutaneous Melanoma Detection and Management
Keywords
melanoma, metastatic melanoma, UV exposure, chronic sun exposure, mutation rate, germline DNA, PTEN, tumor suppressor, recurrent mutations, skin cancer pathogenesis
MeSH terms
DNA Damage, DNA Mutational Analysis, Humans, Melanocytes, Melanoma, Mutation, Oncogenes, Sunlight, Ultraviolet Rays, Genome, Human, Gene Expression Regulation, Neoplastic, Mutagenesis, Guanine Nucleotide Exchange Factors, Chromosome Breakpoints

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