Spatial genomic heterogeneity within localized, multifocal prostate cancer

Boutros, Paul C; Fraser, Michael; Harding, Nicholas J; de Borja, Richard; Trudel, Dominique; Lalonde, Emilie; Meng, Alice; Hennings-Yeomans, Pablo H; McPherson, Andrew; Sabelnykova, Veronica Y; Zia, Amin; Fox, Natalie S; Livingstone, Julie; Shiah, Yu-Jia; Wang, Jianxin; Beck, Timothy A; Have, Cherry L; Chong, Taryne; Sam, Michelle; Johns, Jeremy; ... (2015). Spatial genomic heterogeneity within localized, multifocal prostate cancer. Nature genetics, 47(7), pp. 736-745. Nature America 10.1038/ng.3315

[img] Text
ng.3315.pdf - Published Version
Restricted to registered users only
Available under License Publisher holds Copyright.

Download (3MB) | Request a copy

Herein we provide a detailed molecular analysis of the spatial heterogeneity of clinically localized, multifocal prostate cancer to delineate new oncogenes or tumor suppressors. We initially determined the copy number aberration (CNA) profiles of 74 patients with index tumors of Gleason score 7. Of these, 5 patients were subjected to whole-genome sequencing using DNA quantities achievable in diagnostic biopsies, with detailed spatial sampling of 23 distinct tumor regions to assess intraprostatic heterogeneity in focal genomics. Multifocal tumors are highly heterogeneous for single-nucleotide variants (SNVs), CNAs and genomic rearrangements. We identified and validated a new recurrent amplification of MYCL, which is associated with TP53 deletion and unique profiles of DNA damage and transcriptional dysregulation. Moreover, we demonstrate divergent tumor evolution in multifocal cancer and, in some cases, tumors of independent clonal origin. These data represent the first systematic relation of intraprostatic genomic heterogeneity to predicted clinical outcome and inform the development of novel biomarkers that reflect individual prognosis.

Item Type:

Journal Article (Original Article)

Division/Institute:

04 Faculty of Medicine > Department of Haematology, Oncology, Infectious Diseases, Laboratory Medicine and Hospital Pharmacy (DOLS) > Clinic of Radiation Oncology

UniBE Contributor:

Dal Pra, Alan

Subjects:

600 Technology > 610 Medicine & health

ISSN:

1061-4036

Publisher:

Nature America

Language:

English

Submitter:

Beatrice Scheidegger

Date Deposited:

07 Apr 2016 11:33

Last Modified:

09 Apr 2016 14:56

Publisher DOI:

10.1038/ng.3315

PubMed ID:

26005866

BORIS DOI:

10.7892/boris.75356

URI:

https://boris.unibe.ch/id/eprint/75356

Actions (login required)

Edit item Edit item
Provide Feedback