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Abstract
Purpose: Due to the lack of effective screening approaches and early detection biomarkers, ovarian cancer has the highest mortality rates among gynecologic cancers. Herein, we undertook a systematic biomarker discovery and validation approach to identify microRNA (miRNA) biomarkers for the early detection of ovarian cancer.
Experimental Design: During the discovery phase, we performed small RNA sequencing in stage I high-grade serous ovarian cancer (n = 31), which was subsequently validated in multiple, independent data sets (TCGA, n = 543; GSE65819, n = 87). Subsequently, we performed multivariate logistic regression-based training in a serum data set (GSE106817, n = 640), followed by its independent validation in three retrospective data sets (GSE31568, n = 85; GSE113486, n = 140; Czech Republic cohort, n = 192) and one prospective serum cohort (n = 95). In addition, we evaluated the specificity of OCaMIR, by comparing its performance in several other cancers (GSE31568 cohort, n = 369).
Results: The OCaMIR demonstrated a robust diagnostic accuracy in the stage I high-grade serous ovarian cancer patients in the discovery cohort (AUC = 0.99), which was consistently reproducible in both stage I (AUC = 0.96) and all stage patients (AUC = 0.89) in the TCGA cohort. Logistic regression-based training and validation of OCaMIR achieved AUC values of 0.89 (GSE106817), 0.85 (GSE31568), 0.86 (GSE113486), and 0.82 (Czech Republic cohort) in the retrospective serum validation cohorts, as well as prospective validation cohort (AUC = 0.92). More importantly, OCaMIR demonstrated a significantly superior diagnostic performance compared with CA125 levels, even in stage I patients, and was more cost-effective, highlighting its potential role for screening and early detection of ovarian cancer.
Conclusions: Small RNA sequencing identified a robust noninvasive miRNA signature for early-stage serous ovarian cancer detection.
Experimental Design: During the discovery phase, we performed small RNA sequencing in stage I high-grade serous ovarian cancer (n = 31), which was subsequently validated in multiple, independent data sets (TCGA, n = 543; GSE65819, n = 87). Subsequently, we performed multivariate logistic regression-based training in a serum data set (GSE106817, n = 640), followed by its independent validation in three retrospective data sets (GSE31568, n = 85; GSE113486, n = 140; Czech Republic cohort, n = 192) and one prospective serum cohort (n = 95). In addition, we evaluated the specificity of OCaMIR, by comparing its performance in several other cancers (GSE31568 cohort, n = 369).
Results: The OCaMIR demonstrated a robust diagnostic accuracy in the stage I high-grade serous ovarian cancer patients in the discovery cohort (AUC = 0.99), which was consistently reproducible in both stage I (AUC = 0.96) and all stage patients (AUC = 0.89) in the TCGA cohort. Logistic regression-based training and validation of OCaMIR achieved AUC values of 0.89 (GSE106817), 0.85 (GSE31568), 0.86 (GSE113486), and 0.82 (Czech Republic cohort) in the retrospective serum validation cohorts, as well as prospective validation cohort (AUC = 0.92). More importantly, OCaMIR demonstrated a significantly superior diagnostic performance compared with CA125 levels, even in stage I patients, and was more cost-effective, highlighting its potential role for screening and early detection of ovarian cancer.
Conclusions: Small RNA sequencing identified a robust noninvasive miRNA signature for early-stage serous ovarian cancer detection.
Original language | English |
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Pages (from-to) | 4277-4286 |
Journal | Clinical Cancer Research |
Volume | 27 |
Issue number | 15 |
Online published | 25 May 2021 |
DOIs | |
Publication status | Published - Aug 2021 |
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Dive into the research topics of 'OCaMIR—A noninvasive, diagnostic signature for early-stage ovarian cancer: A multi-cohort retrospective and prospective study'. Together they form a unique fingerprint.Projects
- 4 Finished
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GRF: Dissecting Age-dependent Molecular Heterogeneity of Colorectal Cancer and Establishing a Probabilistic Model for Robust Prediction of High-risk Young-onset Colorectal Cancer Patients
WANG, X. (Principal Investigator / Project Coordinator)
1/09/19 → 24/11/21
Project: Research
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RIF-ExtU-Lead: Patient-Derived Preclinical Models for Translational Cancer Research: a Hong Kong-based Biotechnology Centre for Genomic Medicine
Wong, N. (Main Project Coordinator [External]) & WANG, X. (Principal Investigator / Project Coordinator)
30/06/19 → 6/04/22
Project: Research
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GRF: Multi-omic Molecular Subtyping of Ovarian High-grade Serous Carcinoma and Multidimensional Network Inference for Dissecting the Mesenchymal Subtype Specific Regulatory Mechanisms
WANG, X. (Principal Investigator / Project Coordinator)
1/01/19 → 24/11/21
Project: Research