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Role of urinary cathepsin B and L in the detection of bladder urothelial cell carcinoma

Svatek, R. S. and Karam, J. and Karakiewicz, P. I. and Gallina, A. and Casella, R. and Roehrborn, C. G. and Shariat, S. F.. (2008) Role of urinary cathepsin B and L in the detection of bladder urothelial cell carcinoma. Journal of Urology, Vol. 179. pp. 478-484.

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Official URL: http://edoc.unibas.ch/dok/A6004177

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Abstract

PURPOSE: We tested the hypothesis that urinary cathepsin B and L are associated with bladder cancer recurrence and invasiveness in patients with a history of nonmuscle invasive urothelial carcinoma of the bladder. MATERIALS AND METHODS: Cathepsin B and L, and NMP22 were determined in the urine specimens of 188 consecutive subjects with a history of treated urothelial carcinoma of the bladder, 31 with noncancerous urological conditions and 10 healthy subjects. Cathepsin B and L were analyzed as continuous and categorical variables based on their quartile distribution. RESULTS: Urinary cathepsin L was higher in the 122 patients with cystoscopic evidence of bladder tumor compared with levels in 107 with normal cystoscopy (median 5.9, IQR 4.4 vs 3.0, IQR 3.2, p >0.001). Higher levels of cathepsin L were associated with positive cytology assay results, higher NMP22 and T1 or greater pathological stage (each p >0.001). Area under the ROC curves of NMP22 and cathepsin L for bladder cancer detection were 0.704 (95% CI 0.637-0.772) and 0.793 (95% CI 0.736-0.850), respectively. On multivariate analysis cathepsin L, NMP22 and cytology were associated with invasive pathological stage (OR 1.29, 2.42 and 2.76, respectively, p >/=0.002). Urinary cathepsin B was not associated with any outcome variables. CONCLUSIONS: Urinary cathepsin L is an independent predictor of bladder cancer presence and invasiveness in patients with a history of urothelial carcinoma of the bladder. Further evaluation of this marker is necessary before its use as an adjunct to cystoscopy for urothelial carcinoma of the bladder.
Faculties and Departments:03 Faculty of Medicine > Bereich Operative Fächer (Klinik) > Innere Organe > Urologie USB (Bachmann)
03 Faculty of Medicine > Departement Klinische Forschung > Bereich Operative Fächer (Klinik) > Innere Organe > Urologie USB (Bachmann)
UniBasel Contributors:Casella, Roberto G.
Item Type:Article, refereed
Article Subtype:Research Article
Publisher:Elsevier
ISSN:0022-5347
Note:Publication type according to Uni Basel Research Database: Journal article
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Last Modified:08 Nov 2012 16:22
Deposited On:08 Nov 2012 16:15

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