Syring I., Bartels J., Holdenrieder S., Kristiansen G., Müller S.C., Ellinger J.
The Journal of urology 2015 193:1 (331-337)
PURPOSE: Classic serum tumor markers (human chorionic gonadotropin, ?1-fetoprotein and lactate dehydrogenase) have an important role in managing testicular germ cell tumor. Since only 60% of all patients with testicular germ cell tumor have elevations of these markers, there is a need for new biomarkers with greater sensitivity/specificity. miRNAs are deregulated in cancer and could serve as noninvasive serum biomarkers. We explored the role of serum miRNAs as a novel biomarker in patients with testicular germ cell tumor.MATERIALS AND METHODS: Total RNA was isolated from serum. miRNA levels were quantified by quantitative real-time polymerase chain reaction. We assessed the miRNAs miR-302a-3p, 302b-3p, 302c-3p, 367-3p, 371a-3p, 372-3p and 373-3p in a subcohort of 30 patients with testicular germ cell tumor and 18 healthy subjects. Validation was performed in 76 patients treated with inguinal exploration due to suspicion of testicular germ cell tumor, of whom 59 had cancer and 17 had benign disease, and in 84 healthy male subjects.RESULTS: Serum miR-367-3p, 371a-3p, 372-3p and 373-3p levels were significantly increased in patients with testicular germ cell tumor compared to healthy individuals and patients with nonmalignant testicular disease. In particular miR-371a-3p allowed for…(vermás)