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Analysis of cancer-specific urinary exosomal miRNA derived from urothelial carcinoma

Funder: Japan Society for the Promotion of Science

Funding period
JPY 3.9 M
USD 34 K
Funding amount
Exosomes were extracted from urine of 6 urothelial carcinoma (UC) patients and 3 healthy volunteers by ultracentrifugation, and miRNA from urinary Exosomes was analyzed by miRNA array. We identified 5 miRNAs (miR-155-5p, miR-15a-5p, miR-21-5p, miR-132-3p and miR-31-5p) overexpressed in urinary exosomes of UC patients from miRNA microarray analysis.Five candidate miRNAs were all significantly expressed more highly in urinary exosomes of UC patients compared to those of the control in verification cohort (N=60, all P<0.0001). Of the 5 miRNAs, miR-21-5p in urinary exosomes was the most potent biomarker, having a sensitivity of 75.0%, specificity of 95.8%. This result was better than that of urine cytology in this cohort.
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    1112 Oncology and Carcinogenesis

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  • RCDC

    Clinical Research

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  • RCDC

    Urologic Diseases


    4.1 Discovery and preclinical testing of markers and technologies