Active Ratio Test (ART) as a Novel Diagnostic for Ovarian Cancer

Background: Despite substantial effort, there remains a lack of biomarker-based, clinically relevant testing for the accurate, non-invasive diagnostic or prognostic profiling of epithelial ovarian cancers (EOC). Our previous work demonstrated that whilst the inflammatory marker C-X-C motif chemokine...

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Main Authors: Sung-Woog Kang, Adam Rainczuk, Martin K. Oehler, Thomas W. Jobling, Magdalena Plebanski, Andrew N. Stephens
Format: Article
Language:English
Published: MDPI AG 2021-06-01
Series:Diagnostics
Subjects:
Online Access:https://www.mdpi.com/2075-4418/11/6/1048
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author Sung-Woog Kang
Adam Rainczuk
Martin K. Oehler
Thomas W. Jobling
Magdalena Plebanski
Andrew N. Stephens
author_facet Sung-Woog Kang
Adam Rainczuk
Martin K. Oehler
Thomas W. Jobling
Magdalena Plebanski
Andrew N. Stephens
author_sort Sung-Woog Kang
collection DOAJ
description Background: Despite substantial effort, there remains a lack of biomarker-based, clinically relevant testing for the accurate, non-invasive diagnostic or prognostic profiling of epithelial ovarian cancers (EOC). Our previous work demonstrated that whilst the inflammatory marker C-X-C motif chemokine ligand 10 (CXCL10) has prognostic relevance in ovarian cancer, its use is complicated by the presence of multiple, N-terminally modified variants, mediated by several enzymes including Dipeptidyl Peptidase 4 (DPP4). Methods: In this study, we provide the first evidence for the “Active Ratio Test” (ART) as a novel method to measure biologically relevant CXCL10 proteoforms in clinical samples. Results: In a cohort of 275 patients, ART accurately differentiated patients with malignant EOCs from those with benign gynaecological conditions (AUC 0.8617) and significantly out-performed CA125 alone. Moreover, ART combined with the measurement of CA125 and DPP4 significantly increased prognostic performance (AUC 0.9511; sensitivity 90.0%; specificity 91.7%; Cohen’s d > 1) for EOC detection. Conclusion: Our data demonstrate that ART provides a useful method to accurately discriminate between patients with benign versus malignant EOC, and highlights their relevance to ovarian cancer diagnosis. This marker combination may also be applicable in broader screening applications, to identify or discriminate benign from malignant disease in asymptomatic women.
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spelling doaj.art-23b809b8fffc472c8fb71a1244e5d58f2023-11-21T23:07:04ZengMDPI AGDiagnostics2075-44182021-06-01116104810.3390/diagnostics11061048Active Ratio Test (ART) as a Novel Diagnostic for Ovarian CancerSung-Woog Kang0Adam Rainczuk1Martin K. Oehler2Thomas W. Jobling3Magdalena Plebanski4Andrew N. Stephens5Hudson Institute of Medical Research, Clayton 3168, AustraliaHudson Institute of Medical Research, Clayton 3168, AustraliaDepartment of Gynaecological Oncology, Royal Adelaide Hospital, Adelaide 5000, AustraliaDepartment of Gynaecology Oncology, Monash Medical Centre, Bentleigh East 3165, AustraliaSchool of Health and Biomedical Sciences, RMIT University, Bundoora 3083, AustraliaHudson Institute of Medical Research, Clayton 3168, AustraliaBackground: Despite substantial effort, there remains a lack of biomarker-based, clinically relevant testing for the accurate, non-invasive diagnostic or prognostic profiling of epithelial ovarian cancers (EOC). Our previous work demonstrated that whilst the inflammatory marker C-X-C motif chemokine ligand 10 (CXCL10) has prognostic relevance in ovarian cancer, its use is complicated by the presence of multiple, N-terminally modified variants, mediated by several enzymes including Dipeptidyl Peptidase 4 (DPP4). Methods: In this study, we provide the first evidence for the “Active Ratio Test” (ART) as a novel method to measure biologically relevant CXCL10 proteoforms in clinical samples. Results: In a cohort of 275 patients, ART accurately differentiated patients with malignant EOCs from those with benign gynaecological conditions (AUC 0.8617) and significantly out-performed CA125 alone. Moreover, ART combined with the measurement of CA125 and DPP4 significantly increased prognostic performance (AUC 0.9511; sensitivity 90.0%; specificity 91.7%; Cohen’s d > 1) for EOC detection. Conclusion: Our data demonstrate that ART provides a useful method to accurately discriminate between patients with benign versus malignant EOC, and highlights their relevance to ovarian cancer diagnosis. This marker combination may also be applicable in broader screening applications, to identify or discriminate benign from malignant disease in asymptomatic women.https://www.mdpi.com/2075-4418/11/6/1048ovarian cancerCXCL10Active Ratio Testbiomarkersearly detectionELISA
spellingShingle Sung-Woog Kang
Adam Rainczuk
Martin K. Oehler
Thomas W. Jobling
Magdalena Plebanski
Andrew N. Stephens
Active Ratio Test (ART) as a Novel Diagnostic for Ovarian Cancer
Diagnostics
ovarian cancer
CXCL10
Active Ratio Test
biomarkers
early detection
ELISA
title Active Ratio Test (ART) as a Novel Diagnostic for Ovarian Cancer
title_full Active Ratio Test (ART) as a Novel Diagnostic for Ovarian Cancer
title_fullStr Active Ratio Test (ART) as a Novel Diagnostic for Ovarian Cancer
title_full_unstemmed Active Ratio Test (ART) as a Novel Diagnostic for Ovarian Cancer
title_short Active Ratio Test (ART) as a Novel Diagnostic for Ovarian Cancer
title_sort active ratio test art as a novel diagnostic for ovarian cancer
topic ovarian cancer
CXCL10
Active Ratio Test
biomarkers
early detection
ELISA
url https://www.mdpi.com/2075-4418/11/6/1048
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AT magdalenaplebanski activeratiotestartasanoveldiagnosticforovariancancer
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