期刊
CLINICAL CHEMISTRY
卷 68, 期 9, 页码 1164-1176出版社
OXFORD UNIV PRESS INC
DOI: 10.1093/clinchem/hvac095
关键词
liquid biopsy; cfDNA; ctDNA; hematological malignancies; solid tumors; ovarian tumors; machine learning
资金
- Research Foundation-Flanders (FWO-Vlaanderen) [G080217N, G0A1116N]
- Agentschap Innoveren en Ondernemen (VLAIO) [HBC.2018.2108]
- Flemish Cancer Society [2016/10728/2603]
- Stichting tegen Kanker [FAF-C/2016/836, 2018-134]
- EASI Genomics [ZL50015800]
- KU Leuven funding [C1/018, C3/20/100]
This study demonstrates the potential of using cfDNA analysis for non-invasive cancer detection and typing. The researchers identified cfDNA signatures that accurately discriminated between different types of cancers and healthy controls. This approach provides a generic analytical strategy for pan-cancer detection.
Background Cell-free DNA (cfDNA) analysis holds great promise for non-invasive cancer screening, diagnosis, and monitoring. We hypothesized that mining the patterns of cfDNA shallow whole-genome sequencing datasets from patients with cancer could improve cancer detection. Methods By applying unsupervised clustering and supervised machine learning on large cfDNA shallow whole-genome sequencing datasets from healthy individuals (n = 367) and patients with different hematological (n = 238) and solid malignancies (n = 320), we identified cfDNA signatures that enabled cancer detection and typing. Results Unsupervised clustering revealed cancer type-specific sub-grouping. Classification using a supervised machine learning model yielded accuracies of 96% and 65% in discriminating hematological and solid malignancies from healthy controls, respectively. The accuracy of disease type prediction was 85% and 70% for the hematological and solid cancers, respectively. The potential utility of managing a specific cancer was demonstrated by classifying benign from invasive and borderline adnexal masses with an area under the curve of 0.87 and 0.74, respectively. Conclusions This approach provides a generic analytical strategy for non-invasive pan-cancer detection and cancer type prediction.
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