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ABSTRACT: Background
MiR-371a-3p predicts the presence of a macroscopic non-teratomatous germ cell tumour (GCT). We hypothesised that miR-371a-3p can also detect recurrence during active surveillance (AS) of stage I GCT.Methods
We prospectively collected serum samples of 33 men. Relative expression of serum miR-371a-3p levels was determined at each follow-up visit using real-time quantitative reverse transcription-polymerase chain reaction.Results
Recurrence was detected using standard follow-up investigations in 10/33 patients (30%) after a median of 7 months. Directly after orchiectomy, miR-371a-3p levels were not elevated in any of the 15 patients with available post-orchiectomy samples. However, all ten recurring patients exhibited increasing miR-371a-3p levels during follow-up, while miR-371a-3p levels remained non-elevated in all but one patient without recurrence. MiR-371a-3p detected recurrences at a median of 2 months (range 0-5) earlier than standard follow-up investigations.Conclusions
MiR-371a-3p levels immediately post orchiectomy are not predictive for recurrences and unfortunately cannot support decision-making for AS vs. adjuvant treatment. However, miR-371a-3p detects recurrences reliably and earlier than standard follow-up investigations. If this can be confirmed in larger cohorts, monitoring miR-371a-3p could replace surveillance imaging in seminomatous GCT and reduce the amount of imaging in non-seminomatous GCT. Earlier detection of disease recurrence may also reduce the overall treatment burden.
SUBMITTER: Fankhauser CD
PROVIDER: S-EPMC9023438 | biostudies-literature | 2022 May
REPOSITORIES: biostudies-literature

Fankhauser Christian D CD Christiansen Ailsa J AJ Rothermundt Christian C Cathomas Richard R Wettstein Marian S MS Grossmann Nico C NC Grogg Josias B JB Templeton Arnoud J AJ Hirschi-Blickenstorfer Anita A Lorch Anja A Gillessen Silke S Moch Holger H Beyer Joerg J Hermanns Thomas T
British journal of cancer 20211215 8
<h4>Background</h4>MiR-371a-3p predicts the presence of a macroscopic non-teratomatous germ cell tumour (GCT). We hypothesised that miR-371a-3p can also detect recurrence during active surveillance (AS) of stage I GCT.<h4>Methods</h4>We prospectively collected serum samples of 33 men. Relative expression of serum miR-371a-3p levels was determined at each follow-up visit using real-time quantitative reverse transcription-polymerase chain reaction.<h4>Results</h4>Recurrence was detected using stan ...[more]