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    Comprehensive molecular portraits of human breast tumours

    237311_237311.pdf (1.136Mb)
    Access Status
    Open access
    Authors
    Koboldt, D.
    Fulton, R.
    McLellan, M.
    Schmidt, H.
    Kalicki-Veizer, J.
    McMichael, J.
    Fulton, L.
    Dooling, D.
    Ding, L.
    Mardis, E.
    Wilson, R.
    Ally, A.
    Balasundaram, M.
    Butterfield, Y.
    Carlsen, R.
    Carter, C.
    Chu, A.
    Chuah, E.
    Chun, H.
    Coope, R.
    Dhalla, N.
    Guin, R.
    Hirst, C.
    Hirst, M.
    Holt, R.
    Lee, D.
    Li, H.
    Mayo, M.
    Moore, R.
    Mungall, A.
    Pleasance, E.
    Robertson, A.
    Schein, J.
    Shafiei, A.
    Sipahimalani, P.
    Slobodan, J.
    Stoll, D.
    Tam, A.
    Thiessen, N.
    Varhol, Richard
    Wye, N.
    Zeng, T.
    Zhao, Y.
    Birol, I.
    Jones, S.
    Marra, M.
    Cherniack, A.
    Saksena, G.
    Onofrio, R.
    Pho, N.
    Carter, S.
    Schumacher, S.
    Tabak, B.
    Hernandez, B.
    Gentry, J.
    Nguyen, H.
    Crenshaw, A.
    Ardlie, K.
    Beroukhim, R.
    Winckler, W.
    Getz, G.
    Gabriel, S.
    Meyerson, M.
    Chin, L.
    Kucherlapati, R.
    Hoadley, K.
    Auman, J.
    Fan, C.
    Turman, Y.
    Shi, Y.
    Li, L.
    Topal, M.
    He, X.
    Chao, H.
    Prat, A.
    Silva, G.
    Iglesia, M.
    Date
    2012
    Type
    Journal Article
    
    Metadata
    Show full item record
    Citation
    Koboldt, D. and Fulton, R. and McLellan, M. and Schmidt, H. and Kalicki-Veizer, J. and McMichael, J. and Fulton, L. et al. 2012. Comprehensive molecular portraits of human breast tumours. Nature. 490 (7418): pp. 61-70.
    Source Title
    Nature
    DOI
    10.1038/nature11412
    ISSN
    0028-0836
    School
    Department of Health Policy and Management
    Remarks

    This open access article is distributed under the Creative Commons license http://creativecommons.org/licenses/by-nc-sa/3.0/

    URI
    http://hdl.handle.net/20.500.11937/43022
    Collection
    • Curtin Research Publications
    Abstract

    We analysed primary breast cancers by genomic DNA copy number arrays, DNA methylation, exome sequencing, messenger RNA arrays, microRNA sequencing and reverse-phase protein arrays. Our ability to integrate information across platforms provided key insights into previously defined gene expression subtypes and demonstrated the existence of four main breast cancer classes when combining data from five platforms, each of which shows significant molecular heterogeneity. Somatic mutations in only three genes (TP53, PIK3CA and GATA3) occurred at.10% incidence across all breast cancers; however, there were numerous subtype-associated and novel gene mutations including the enrichment of specific mutations in GATA3, PIK3CA and MAP3K1 with the luminal A subtype. We identified two novel protein-expression-defined subgroups, possibly produced by stromal/microenvironmental elements, and integrated analyses identified specific signalling pathways dominant in each molecular subtype including a HER2/phosphorylated HER2/EGFR/phosphorylated EGFR signature within the HER2-enriched expression subtype. Comparison of basal-like breast tumours with high-grade serous ovarian tumours showed many molecular commonalities, indicating a related aetiology and similar therapeutic opportunities. The biological finding of the four main breast cancer subtypes caused by different subsets of genetic and epigenetic abnormalities raises the hypothesis that much of the clinically observable plasticity and heterogeneity occurs within, and not across, these major biological subtypes of breast cancer. © 2012 Macmillan Publishers Limited. All rights reserved.

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