TY - JOUR
T1 - UroMark - A urinary biomarker assay for the detection of bladder cancer
AU - Feber, Andrew
AU - Dhami, Pawan
AU - Dong, Liqin
AU - de Winter, Patricia
AU - Tan, Wei Shen
AU - Martínez-Fernández, Monica
AU - Paul, Dirk
AU - Hynes-Allen, Antony
AU - Rezaee, Sheida
AU - Gurung, Pratik
AU - Rodney, Simon
AU - Mehmood, Ahmed
AU - Villacampa, Felipe
AU - de la Rosa, Federico
AU - Jameson, Charles
AU - Cheng, Kar
AU - Zeegers, Maurice
AU - Bryan, Richard
AU - James, Nicholas
AU - Paramio, Jesus
AU - Freeman, Alex
AU - Beck, Stephan
AU - Kelly, John D
PY - 2017/1/31
Y1 - 2017/1/31
N2 - BackgroundBladder cancer (BC) is one of the most common cancers in the western world and ranks as the most expensive to manage, due to the need for cystoscopic examination. BC shows frequent changes in DNA methylation, and several studies have shown the potential utility of urinary biomarkers by detecting epigenetic alterations in voided urine. The aim of this study is to develop a targeted bisulfite next-generation sequencing assay to diagnose BC from urine with high sensitivity and specificity.ResultsWe defined a 150 CpG loci biomarker panel from a cohort of 86 muscle-invasive bladder cancers and 30 normal urothelium. Based on this panel, we developed the UroMark assay, a next-generation bisulphite sequencing assay and analysis pipeline for the detection of bladder cancer from urinary sediment DNA. The 150 loci UroMark assay was validated in an independent cohort (n = 274, non-cancer (n = 167) and bladder cancer (n = 107)) voided urine samples with an AUC of 97%. The UroMark classifier sensitivity of 98%, specificity of 97% and NPV of 97% for the detection of primary BC was compared to non-BC urine.ConclusionsEpigenetic urinary biomarkers for detection of BC have the potential to revolutionise the management of this disease. In this proof of concept study, we show the development and utility of a novel high-throughput, next-generation sequencing-based biomarker for the detection of BC-specific epigenetic alterations in urine.
AB - BackgroundBladder cancer (BC) is one of the most common cancers in the western world and ranks as the most expensive to manage, due to the need for cystoscopic examination. BC shows frequent changes in DNA methylation, and several studies have shown the potential utility of urinary biomarkers by detecting epigenetic alterations in voided urine. The aim of this study is to develop a targeted bisulfite next-generation sequencing assay to diagnose BC from urine with high sensitivity and specificity.ResultsWe defined a 150 CpG loci biomarker panel from a cohort of 86 muscle-invasive bladder cancers and 30 normal urothelium. Based on this panel, we developed the UroMark assay, a next-generation bisulphite sequencing assay and analysis pipeline for the detection of bladder cancer from urinary sediment DNA. The 150 loci UroMark assay was validated in an independent cohort (n = 274, non-cancer (n = 167) and bladder cancer (n = 107)) voided urine samples with an AUC of 97%. The UroMark classifier sensitivity of 98%, specificity of 97% and NPV of 97% for the detection of primary BC was compared to non-BC urine.ConclusionsEpigenetic urinary biomarkers for detection of BC have the potential to revolutionise the management of this disease. In this proof of concept study, we show the development and utility of a novel high-throughput, next-generation sequencing-based biomarker for the detection of BC-specific epigenetic alterations in urine.
KW - Bladder cancer
KW - Epigenetics
KW - Urine
KW - Next generation sequencing
KW - Diagnostic
U2 - 10.1186/s13148-016-0303-5
DO - 10.1186/s13148-016-0303-5
M3 - Article
SN - 1868-7075
VL - 9
JO - Clinical epigenetics
JF - Clinical epigenetics
M1 - 8
ER -