Aarhus University Seal / Aarhus Universitets segl

Small RNAs in Seminal Plasma as Novel Biomarkers for Germ Cell Tumors

Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

DOI

  • Nina Mørup, University of Copenhagen
  • ,
  • Rytis Stakaitis, University of Copenhagen, Lithuanian University of Health Sciences; Hospital of Lithuanian University of Health Sciences Kauno klinikos
  • ,
  • Ieva Golubickaite, University of Copenhagen, Lithuanian University of Health Sciences; Hospital of Lithuanian University of Health Sciences Kauno klinikos
  • ,
  • Meritxell Riera
  • Marlene Danner Dalgaard, Technical University of Denmark
  • ,
  • Mikkel H. Schierup
  • Niels Jørgensen, University of Copenhagen
  • ,
  • Gedske Daugaard, University of Copenhagen
  • ,
  • Anders Juul, University of Copenhagen
  • ,
  • Kristian Almstrup, University of Copenhagen

Circulating miRNAs secreted by testicular germ cell tumors (TGCT) show great potential as novel non-invasive biomarkers for diagnosis of TGCT. Seminal plasma (SP) represents a biofluid closer to the primary site. Here, we investigate whether small RNAs in SP can be used to diagnose men with TGCTs or the precursor lesions, germ cell neoplasia in situ (GCNIS). Small RNAs isolated from SP from men with TGCTs (n = 18), GCNIS-only (n = 5), and controls (n = 25) were sequenced. SP from men with TGCT/GCNIS (n = 37) and controls (n = 22) were used for validation by RT-qPCR. In general, piRNAs were found at lower levels in SP from men with TGCTs. Ten small RNAs were found at significantly (q-value < 0.05) different levels in SP from men with TGCT/GCNIS than controls. Random forests classification identified sets of small RNAs that could detect either TGCT/GCNIS or GCNIS-only with an area under the curve of 0.98 and 1 in ROC analyses, respectively. RT-qPCR validated hsa-miR-6782-5p to be present at 2.3-fold lower levels (p = 0.02) in the SP from men with TGCTs compared with controls. Small RNAs in SP show potential as novel biomarkers for diagnosing men with TGCT/GCNIS but validation in larger cohorts is needed.

Original languageEnglish
Article number2346
JournalCancers
Volume13
Issue10
ISSN2072-6694
DOIs
Publication statusPublished - May 2021

Bibliographical note

Publisher Copyright:
© 2021 by the authors. Licensee MDPI, Basel, Switzerland.

    Research areas

  • Diagnostics, Small RNAs, Testicular cancer

See relations at Aarhus University Citationformats

ID: 227642427