Genomic complexity of urothelial bladder cancer revealed in urinary cfDNA

Autor: Brendan O'Sullivan, Sofia Alyas, Philippe Taniere, Nayneeta Deshmukh, Mike Griffiths, Fabiana Ramos Vasques, Paula Wojtowicz, Adam J. Devall, Joseph M. Foster, Dominic J. McMullan, Karen G. Spink, Nicholas D. James, Richard T. Bryan, Maurice P. Zeegers, Douglas G. Ward, Kar Keung Cheng, Fiona S. Togneri, Assa Oumie
Přispěvatelé: RS: NUTRIM - R4 - Gene-environment interaction, RS: CAPHRI - R5 - Optimising Patient Care, Complexe Genetica
Jazyk: angličtina
Rok vydání: 2016
Předmět:
Zdroj: European Journal of Human Genetics
European Journal of Human Genetics, 24(8). Nature Publishing Group
ISSN: 1018-4813
DOI: 10.1038/ejhg.2015.281
Popis: Urothelial bladder cancers (UBCs) have heterogeneous clinical characteristics that are mirrored in their diverse genomic profiles. Genomic profiling of UBCs has the potential to benefit routine clinical practice by providing prognostic utility above and beyond conventional clinicopathological factors, and allowing for prediction and surveillance of treatment responses. Urinary DNAs representative of the tumour genome provide a promising resource as a liquid biopsy for non-invasive genomic profiling of UBCs. We compared the genomic profiles of urinary cellular DNA and cell-free DNA (cfDNA) from the urine with matched diagnostic formalin-fixed paraffin-embedded tumour DNAs for 23 well-characterised UBC patients. Our data show urinary DNAs to be highly representative of patient tumours, allowing for detection of recurrent clinically actionable genomic aberrations. Furthermore, a greater aberrant load (indicative of tumour genome) was observed in cfDNA over cellular DNA (P
Databáze: OpenAIRE