Role of circulating-tumor DNA analysis in non-small cell lung cancer
- PMID: 26415994
- DOI: 10.1016/j.lungcan.2015.09.013
Role of circulating-tumor DNA analysis in non-small cell lung cancer
Abstract
The discovery of actionable driver mutations such as epidermal growth factor receptor (EGFR) and microtubule-associated protein-like 4 anaplastic lymphoma kinase (EML4-ALK) and their highly responses to EGFR and ALK tyrosine kinase inhibitors (TKIs) in patients with advanced non-small-cell lung cancer (NSCLC) allowed precise medicine into reality. However, a substantial part of patients still have no sufficient tissue to perform genomic analysis. As a promising noninvasive biomarker and potential surrogate for the entire tumor genome, circulating tumor DNA (ctDNA) has been applied to the detection of driver gene mutations and epigenetic alteration and monitoring of tumor burden, acquired resistance, tumor heterogeneity and early diagnosis. Since precise therapy is a strategy that optimal therapy is decided based on simultaneous tumor genome information, ctDNA, as a liquid biopsy, may help to perform dynamic genetic surveillance. In this paper we will perspectively discuss the biology and identification of ctDNA in the blood of NSCLC patients and its clinical applications in patient management.
Keywords: Cell free DNA; Circulating-tumor DNA; Non-small-cell lung cancer.
Copyright © 2015 Elsevier Ireland Ltd. All rights reserved.
Comment in
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Rapid clearance of circulating tumor DNA during treatment with AZD9291 of a lung cancer patient presenting the resistance EGFR T790M mutation.Lung Cancer. 2016 Jan;91:73-4. doi: 10.1016/j.lungcan.2015.11.008. Epub 2015 Nov 7. Lung Cancer. 2016. PMID: 26612314 No abstract available.
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