Impact of differing methodologies for serum miRNA-371a-3p assessment in stage I testicular germ cell cancer recurrence

Bibliographic Details
Title: Impact of differing methodologies for serum miRNA-371a-3p assessment in stage I testicular germ cell cancer recurrence
Authors: Ailsa J. Christiansen, João Lobo, Christian D. Fankhauser, Christian Rothermundt, Richard Cathomas, Aashil A. Batavia, Josias B. Grogg, Arnoud J. Templeton, Anita Hirschi-Blickenstorfer, Anja Lorch, Silke Gillessen, Holger Moch, Jörg Beyer, Thomas Hermanns
Source: Frontiers in Oncology, Vol 12 (2022)
Publisher Information: Frontiers Media S.A., 2022.
Publication Year: 2022
Collection: LCC:Neoplasms. Tumors. Oncology. Including cancer and carcinogens
Subject Terms: miRNA - microRNA, germ cell testicular cancer, serum biomarker, method optimization, clinical implementation, disease recurrence, Neoplasms. Tumors. Oncology. Including cancer and carcinogens, RC254-282
More Details: IntroductionCurrent evidence shows that serum miR-371a-3p can identify disease recurrence in testicular germ cell tumour (TGCT) patients and correlates with tumour load. Despite convincing evidence showing the advantages of including miR-371a-3p testing to complement and overcome the classical serum tumour markers limitations, the successful introduction of a serum miRNA based test into clinical practice has been impeded by a lack of consensus regarding optimal methodologies and lack of a universal protocol and thresholds. Herein, we investigate two quantitative real-time PCR (qRT-PCR) based pipelines in detecting disease recurrence in stage I TGCT patients under active surveillance, and compare the sensitivity and specificity for each method.MethodsSequential serum samples collected from 33 stage I TGCT patients undergoing active surveillance were analysed for miR-371a-3p via qRT-PCR with and without an amplification step included.ResultsUsing a pre-amplified protocol, all known recurrences were detected via elevated miR-371a-3p expression, while without pre-amplification, we failed to detect recurrence in 3/10 known recurrence patients. For pre-amplified analysis, sensitivity and specificity was 90% and 94.4% respectively. Without amplification, sensitivity dropped to 60%, but exhibited 100% specificity.DiscussionWe conclude that incorporating pre-amplification increases sensitivity of miR-371a-3p detection, but produces more false positive results. The ideal protocol for quantification of miR-371a-3p still needs to be determined. TGCT patients undergoing active surveillance may benefit from serum miR-371a-3p quantification with earlier detection of recurrences compared to current standard methods. However, larger cross-institutional studies where samples are processed and data is analysed in a standardised manner are required prior to its routine clinical implementation.
Document Type: article
File Description: electronic resource
Language: English
ISSN: 2234-943X
Relation: https://www.frontiersin.org/articles/10.3389/fonc.2022.1056823/full; https://doaj.org/toc/2234-943X
DOI: 10.3389/fonc.2022.1056823
Access URL: https://doaj.org/article/9039fb352c16400a82b9ed88cda7aed2
Accession Number: edsdoj.9039fb352c16400a82b9ed88cda7aed2
Database: Directory of Open Access Journals
More Details
ISSN:2234943X
DOI:10.3389/fonc.2022.1056823
Published in:Frontiers in Oncology
Language:English