Abstract
Urine is an ideal body fluid for the detection of protein markers produced by urological cancers as it can be sampled noninvasively and contains secreted and directly shed proteins from the prostate, bladder and kidney. Major challenges of working with urine include high inter-individual and intra-individual variability, low protein concentration, the presence of salts and the dynamic range of protein expression. Despite these challenges, significant progress is being made using modern proteomic methods to identify and characterize protein-based markers for urological cancers. The development of robust, easy-to-use clinical tests based on novel biomarkers has the potential to impact upon diagnosis, prognosis and monitoring and could revolutionize the treatment and management of these cancers.
Key Points
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Urine is an accessible body fluid that can be utilized for the discovery of prognostic, diagnostic and monitoring biomarkers for urological cancers
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Proteomics has the potential to identify the key molecules in urine that are involved in the development and spread of urological cancers and might have roles as biomarkers
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Increasing numbers of potential biomarkers are being discovered for prostate cancer, bladder cancer and renal cell carcinoma using urine-based proteomic studies
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Urinary exosomes are a promising source of biomarkers for cancer diagnosis
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Consideration needs to be given to how biomarkers from laboratory-based studies are validated and evaluated to ensure effective and timely translation into clinical use
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Acknowledgements
S. L. Wood was supported by an Experimental Cancer Medical Centre grant (Leeds) and a Clinical Research Initiative and Experimental Cancer Medical Centre grant (Manchester) from Cancer Research UK. R. E. Banks was supported by Cancer Research UK.
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S. L. Wood, M. A. Knowles and R. E. Banks researched data for the article. S. L. Wood wrote the article. All authors made a substantial contribution to the discussion of content and reviewed the manuscript before submission.
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Supplementary Table 1
Non-proteomic studies to discover biomarkers of prostate cancer (DOC 37 kb)
Supplementary Table 2
Non-proteomic studies to discover biomarkers of bladder cancer (DOC 46 kb)
Supplementary Table 3
Non-proteomic-studies to discover biomarkers of renal cell carcinoma (RCC) (DOC 26 kb)
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Wood, S., Knowles, M., Thompson, D. et al. Proteomic studies of urinary biomarkers for prostate, bladder and kidney cancers. Nat Rev Urol 10, 206–218 (2013). https://doi.org/10.1038/nrurol.2013.24
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DOI: https://doi.org/10.1038/nrurol.2013.24
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