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Πέμπτη 12 Απριλίου 2018

The evolving genomic landscape in urothelial cancer

imagePurpose of review Recent advances in next-generation sequencing have allowed for detailed molecular analysis of urothelial carcinomas, with potentially significant clinical implications for personalized treatment. Our objective in this review is to highlight studies from the past year that have furthered the understanding of urothelial cancer genomics. Recent findings Recent studies by The Cancer Genome Atlas consortium further characterized urothelial carcinomas via molecular subtyping, and a schema was proposed to match each subtype with potential therapeutic implications. Molecular subtyping was also utilized in a separate analysis to determine which tumours benefit from neoadjuvant chemotherapy. Tumour characteristics were also explored pre and postneoadjuvant chemotherapy and a mutational signature associated with postcisplatin treatment was described. We also review a comprehensive analysis of upper tract urinary carcinomas published this past year. Summary Recent genomic analyses have revealed that the classification of urothelial carcinoma is much more complex than the traditional dichotomy of nonmuscle-invasive and muscle-invasive bladder cancers. Molecular subtyping has provided additional insights into prognoses and treatment options for these patients. Although molecular subtyping is not yet ready for implementation into clinical practice, these latest efforts offer an exciting opportunity to integrate such information into prospective clinical studies that may ultimately lead to improved treatment outcomes.

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