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Noncoding RNA in bladder cancer: a specific focus upon high-risk nonmuscle invasive disease

Noon, Aidan P.a,b; Catto, James W.F.b

doi: 10.1097/MOU.0000000000000090
HIGH RISK NONMUSCLE INVASIVE BLADDER CANCER: Edited by Shahrokh F. Shariat

Purpose of review Bladder cancer is a common disease whose natural history can be unpredictable. As such, there is an urgent clinical need to identify biomarkers that will improve the care of patients by allowing a more individualized approach. Noncoding RNAs (ncRNAs) are a recently identified subgroup of RNAs whose mature species are not translated into proteins. Here, we review knowledge of ncRNA in bladder cancer, with a focus upon their role in high-risk nonmuscle invasive tumors.

Recent findings There have been a number of articles reporting the ability of microRNAs to help evaluate patients with nonmuscle invasive bladder cancer. New long ncRNA species have been evaluated for the first time in bladder cancer. Competing endogenous RNAs and enhancer RNAs show interesting functional and regulatory effects in other cancers, but have yet to be evaluated in bladder cancer.

Summary Novel RNA species are increasingly being used to help prognosticate patients with bladder cancer and to understand key oncological events in the evolution of this disease. Future work is needed to validate potential clinical utility of the RNA species described.

aDepartment of Urology, Division of Surgery, Princess Margaret Cancer Hospital, University of Toronto, Toronto, Ontario, Canada

bAcademic Urology Unit, The Medical School, University of Sheffield, Sheffield, UK

Correspondence to James W.F. Catto, Academic Urology Unit, G Floor, The Medical School, University of Sheffield, Beech Hill Road, Sheffield, S10 2RX, UK. Tel: +44 114 226 1229; fax: +44 114 271 2268; e-mail: j.catto@sheffield.ac.uk

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