Diagnostic and prognostic value of bladder cancer-related transcript markers in urine

Publikation: Beitrag in FachzeitschriftForschungsartikelBeigetragenBegutachtung

Beitragende

  • Juliane Schmidt - , Klinik und Poliklinik für Urologie (Autor:in)
  • Catharina Propping - , Klinik und Poliklinik für Urologie (Autor:in)
  • Woei Yun Siow - , Raffles Hospital (Autor:in)
  • Andrea Lohse-Fischer - , Klinik und Poliklinik für Urologie (Autor:in)
  • Marieta Toma - , Institut für Pathologie (Autor:in)
  • Anka Baldauf-Twelker - , Klinik und Poliklinik für Urologie (Autor:in)
  • Oliver W. Hakenberg - , Universität Rostock (Autor:in)
  • Manfred P. Wirth - , Klinik und Poliklinik für Urologie (Autor:in)
  • Susanne Fuessel - , Klinik und Poliklinik für Urologie (Autor:in)

Abstract

Purpose: Since cytology as the current “gold standard” for noninvasive detection of bladder cancer (BCa) is characterized by a relatively low sensitivity, urinary transcript levels of survivin (SVV), Ki-67 and cytokeratin 20 (CK20) were evaluated as alternative or complementary biomarkers. Furthermore, their prognostic value was investigated. Methods: Voided urine samples from 105 BCa patients and 156 controls were included. Total RNA was isolated from urine pellets and reverse-transcribed into cDNA. Expression levels of SVV, Ki-67 and CK20 were determined by quantitative PCR and normalized to the housekeeping gene TBP. Diagnostic performance of transcript markers and cytology was assessed by receiver operating characteristic (ROC) curve analyses. The prognostic value of the transcript markers was calculated by Cox proportional hazards models. Results: ROC analyses resulted in AUC values between 0.71 (Ki-67) and 0.86 (CK20), indicating an appropriate diagnostic power. Using specifically defined cutoff values, the expression levels of the assessed biomarkers were significantly higher in urine specimens from BCa patients compared to control group (Mann–Whitney U test p < 0.001). Specificity ranged from 75 % (SVV) to 84 % (CK20) and sensitivity from 56 % (Ki-67) to 87 % (CK20). In combination with cytology, the sensitivity increased up to 97 % (CK20). With regard to prognostic power, only SVV showed a significant, but not independent impact on the risk of recurrence (p = 0.008). Conclusions: Quantitative assessment of tumor-related transcript markers, particularly of CK20, may serve as a noninvasive method to identify patients with BCa. Moreover, SVV appears to be useful as a marker for a high risk of recurrence.

Details

OriginalspracheEnglisch
Seiten (von - bis)401-414
Seitenumfang14
FachzeitschriftJournal of cancer research and clinical oncology
Jahrgang142
Ausgabenummer2
PublikationsstatusVeröffentlicht - 1 Feb. 2016
Peer-Review-StatusJa

Externe IDs

PubMed 26328914

Schlagworte

Ziele für nachhaltige Entwicklung

ASJC Scopus Sachgebiete

Schlagwörter

  • BIRC5, CK20, Ki-67, Survivin, Urine, Urothelial carcinoma