Bladder cancer incurs a higher lifetime treatment cost than other cancers due to frequent recurrence of non-invasive disease. Improved prognostic biomarkers and localized therapy are needed for this large patient group. We defined two major genomic subtypes of primary stage Ta tumors. One of these was characterized by loss of 9q including TSC1, increased KI67 labeling index, upregulated glycolysis, DNA repair, mTORC1 signaling, features of the unfolded protein response, and altered cholesterol homeostasis. Comparison with muscle-invasive bladder cancer mutation profiles revealed lower overall mutation rates and more frequent mutations in RHOB and chromatin modifier genes. More mutations in the histone lysine demethylase KDM6A were present in non-invasive tumors from females than males.
Cancer cell. 2017 Nov 13 [Epub]
Carolyn D Hurst, Olivia Alder, Fiona M Platt, Alastair Droop, Lucy F Stead, Julie E Burns, George J Burghel, Sunjay Jain, Leszek J Klimczak, Helen Lindsay, Jo-An Roulson, Claire F Taylor, Helene Thygesen, Angus J Cameron, Anne J Ridley, Helen R Mott, Dmitry A Gordenin, Margaret A Knowles
Section of Molecular Oncology, Leeds Institute of Cancer and Pathology, St James's University Hospital, Beckett Street, Leeds LS9 7TF, UK., Cancer Research UK Leeds Centre, Leeds Institute of Cancer and Pathology, St James's University Hospital, Beckett Street, Leeds LS9 7TF, UK., Section of Brain Tumour Research, Leeds Institute of Cancer and Pathology, St James's University Hospital, Beckett Street, Leeds LS9 7TF, UK., DNA Laboratory, Genetics Service, Ashley Wing, St James University Hospital, Beckett Street, Leeds LS9 7TF, UK., Pyrah Department of Urology, St James's University Hospital, Beckett Street, Leeds LS9 7TF, UK., Integrative Bioinformatics Support Group, National Institute of Environmental Health Sciences, NIH, Research Triangle Park, NC 27709, USA., Department of Histopathology, St James's University Hospital, Beckett Street, Leeds LS9 7TF, UK., Barts Cancer Institute, Queen Mary University of London, Charterhouse Square, London EC1M 6BQ, UK., Randall Division of Cell and Molecular Biophysics, New Hunt's House, King's College London, Guy's Campus, London SE1 1UL, UK., Department of Biochemistry, University of Cambridge, 80 Tennis Court Road, Cambridge CB2 1GA, UK., Genome Integrity and Structural Biology Laboratory, National Institute of Environmental Health Sciences, NIH, Research Triangle Park, NC 27709, USA., Section of Molecular Oncology, Leeds Institute of Cancer and Pathology, St James's University Hospital, Beckett Street, Leeds LS9 7TF, UK. Electronic address: .