Cell-free DNA as a novel marker in cancer therapy

Advances in next-generation sequencing have provided new insights and new therapeutic options for patients with cancer. However, assessment of genomic aberrations, which is required for precision medicine, has been challenging because of the difficulties in capturing intratumoral heterogeneity and in real-time assessment of tumors. Recent advances in technology have enabled detection and analysis of cell-free DNA in cancer patients, which provides real-time assessment of tumor evolution. Here, we review the recent advances in our understanding of the clinical utility of cell-free DNA and the future directions for its use in cancer management.

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