Cited by 1,967Cancer Genomics and DiagnosticsBreast Cancer Treatment StudiesBRCA gene mutations in cancer

The clonal and mutational evolution spectrum of primary triple-negative breast cancers

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Shah, Sohrab P., Roth, Andrew, Goya, Rodrigo, Oloumi, Arusha, Ha, Gavin, Zhao, Yongjun, Turashvili, Gulisa, Ding, Jiarui +51 more·2012·Nature

Abstract

Primary triple-negative breast cancers (TNBCs), a tumour type defined by lack of oestrogen receptor, progesterone receptor and ERBB2 gene amplification, represent approximately 16% of all breast cancers. Here we show in 104 TNBC cases that at the time of diagnosis these cancers exhibit a wide and continuous spectrum of genomic evolution, with some having only a handful of coding somatic aberrations in a few pathways, whereas others contain hundreds of coding somatic mutations. High-throughput RNA sequencing (RNA-seq) revealed that only approximately 36% of mutations are expressed. Using deep re-sequencing measurements of allelic abundance for 2,414 somatic mutations, we determine for the first time-to our knowledge-in an epithelial tumour subtype, the relative abundance of clonal frequencies among cases representative of the population. We show that TNBCs vary widely in their clonal frequencies at the time of diagnosis, with the basal subtype of TNBC showing more variation than non-basal TNBC. Although p53 (also known as TP53), PIK3CA and PTEN somatic mutations seem to be clonally dominant compared to other genes, in some tumours their clonal frequencies are incompatible with founder status. Mutations in cytoskeletal, cell shape and motility proteins occurred at lower clonal frequencies, suggesting that they occurred later during tumour progression. Taken together, our results show that understanding the biology and therapeutic responses of patients with TNBC will require the determination of individual tumour clonal genotypes.

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Authors
Shah, S. P., Roth, A., Goya, R., Oloumi, A., Ha, G., Zhao, Y., Turashvili, G., Ding, J., Tse, K., Haffari, G., Bashashati, A., Prentice, L. M., Khattra, J., Burleigh, A., Yap, D., Bernard, V., McPherson, A., Shumansky, K., Crisan, A., Giuliany, R., Heravi-Moussavi, A., Rosner, J., Lai, D., Birol, I., Varhol, R., Tam, A., Dhalla, N., Zeng, T., Ma, K., Chan, S. K., Griffith, M., Moradian, A., Cheng, S.-W. G., Morin, G. B., Watson, P., Gelmon, K., Chia, S., Chin, S.-F., Curtis, C., Rueda, O. M., Pharoah, P. D., Damaraju, S., Mackey, J., Hoon, K., Harkins, T., Tadigotla, V., Sigaroudinia, M., Gascard, P., Tlsty, T., Costello, J. F., Meyer, I. M., Eaves, C. J., Wasserman, W. W., Jones, S., Huntsman, D., Hirst, M., Caldas, C., Marra, M. A., & Aparicio, S.
Affiliations
  • University of British Columbia (CA)
  • Canada's Michael Smith Genome Sciences Centre (CA)
  • BC Cancer Agency (CA)
  • University of Cambridge (GB)
  • University of Southern California (US)
  • Cancer Research UK (GB)
  • University of Alberta (CA)
  • University of California, San Francisco (US)
Corresponding author
  • Shah, Sohrab P.
  • Caldas, Carlos
  • Marra, Marco A.
  • Aparicio, Samuel
Venue
Nature
Published
2012-04-04
Volume
486
Issue
7403
Pages
395-399
ISSN
  • 0028-0836 (ISSN-L)
  • 1476-4687
OpenAlex
W2063382533
Cited by
1,967
References
23
Citations by year
2026: 40 · 2025: 61 · 2024: 71 · 2023: 131 · 2022: 132 · 2021: 119 · 2020: 131 · 2019: 120 · 2018: 135 · 2017: 173 · 2016: 179 · 2015: 198 · 2014: 199 · 2013: 201 · 2012: 76
FWCI
71.57
Type
journal article
Language
en
Open access
Locations
  • Nature (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
  • eScholarship (California Digital Library) (submittedVersion)
  • RePEc: Research Papers in Economics (submittedVersion)
  • MDC Repository (Max-Delbrueck-Center for Molecular Medicine) (submittedVersion)
  • eSpace (Curtin University) (submittedVersion)
Funders
  • U.S. Department of Defense
  • Memorial Sloan-Kettering Cancer Center
  • Canada's Michael Smith Genome Sciences Centre
  • Canadian Breast Cancer Research Alliance
  • Michael Smith Health Research BC
  • Cancer Research UK
  • National Institute for Health and Care Research (NF-SI-0611-10154)
  • Cure Brain Cancer Foundation
  • BC Cancer Foundation
  • National Institutes of Health
  • Imperial Experimental Cancer Medicine Centre
  • BC Cancer Agency
  • National Institute of General Medical Sciences (R01GM084875)
  • National Institute of Environmental Health Sciences (U01ES017154)
  • Congressionally Directed Medical Research Programs
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cancer Research › Cancer Genomics and Diagnostics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cancer Research › Breast Cancer Treatment Studies
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › BRCA gene mutations in cancer
Keywords
triple-negative breast cancer, clonal evolution, somatic mutations, copy number variation, cancer genomics, TP53 mutation, PIK3CA mutation, PTEN mutation, basal subtype, tumor progression, founder mutation, clonal heterogeneity
MeSH terms
Alleles, Breast Neoplasms, Clone Cells, DNA Mutational Analysis, Female, Genotype, Humans, Mutation, Reproducibility of Results, Gene Expression Regulation, Neoplastic, Point Mutation, Sequence Analysis, RNA, Disease Progression, Evolution, Molecular, Gene Expression Profiling, INDEL Mutation, DNA Copy Number Variations, Precision Medicine, High-Throughput Nucleotide Sequencing

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