Analytical validation of an mRNA-based urine test to predict the presence of high-grade prostate cancer
2017
Background
The challenge for prostate cancer (PCa) diagnosis is to improve the ability to distinguish indolent from aggressive PCa. Increased urinary levels of Distal-less Homeobox 1 (DLX1) and Homeobox C6 (HOXC6) mRNA have been associated with high-grade PCa (Gleason Score ≥7). Reverse transcriptase PCR (RT-PCR)-assays for the quantification of DLX1 and HOXC6 mRNA levels were developed, and clinical validation showed that these urinary markers can significantly improve accuracy for detection of high-grade PCa at biopsy. The aim of this study was to validate the analytical performance of these mRNA-based assays, including specimen stability and analytical sensitivity, specificity, precision, repeatability and reproducibility.
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