Laser-assisted rapid evaporative ionisation mass spectrometry (LA-REIMS) as a metabolomics platform in cervical cancer screening

Maria Paraskevaidi, Simon J S Cameron, Eilbhe Whelan, Sarah Bowden, Menelaos Tzafetas, Anita Mitra, Anita Semertzidou, Antonis Athanasiou, Phillip R Bennett, David A MacIntyre, Zoltan Takats, Maria Kyrgiou

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Abstract

BACKGROUND: The introduction of high-risk human papillomavirus (hrHPV) testing as part of primary cervical screening is anticipated to improve sensitivity, but also the number of women who will screen positive. Reflex cytology is the preferred triage test in most settings but has limitations including moderate diagnostic accuracy, lack of automation, inter-observer variability and the need for clinician-collected sample. Novel, objective and cost-effective approaches are needed.

METHODS: In this study, we assessed the potential use of an automated metabolomic robotic platform, employing the principle of laser-assisted Rapid Evaporative Ionisation Mass Spectrometry (LA-REIMS) in cervical cancer screening.

FINDINGS: In a population of 130 women, LA-REIMS achieved 94% sensitivity and 83% specificity (AUC: 91.6%) in distinguishing women testing positive (n = 65) or negative (n = 65) for hrHPV. We performed further analysis according to disease severity with LA-REIMS achieving sensitivity and specificity of 91% and 73% respectively (AUC: 86.7%) in discriminating normal from high-grade pre-invasive disease.

INTERPRETATION: This automated high-throughput technology holds promise as a low-cost and rapid test for cervical cancer screening and triage. The use of platforms like LA-REIMS has the potential to further improve the accuracy and efficiency of the current national screening programme.

FUNDING: Work was funded by the MRC Imperial Confidence in Concept Scheme, Imperial College Healthcare Charity, British Society for Colposcopy and Cervical Pathology, National Research Development and Innovation Office of Hungary, Waters corporation and NIHR BRC.

Original languageEnglish
Pages (from-to)103017
JournalEBioMedicine
Volume60
Early online date25 Sep 2020
DOIs
Publication statusPublished - 01 Oct 2020

Bibliographical note

Copyright © 2020 The Authors. Published by Elsevier B.V. All rights reserved.

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