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Circulating DNA has recently gained attention as a fast and non-invasive way to assess tumor biomarkers. Since hypomethylation of LINE-1 repetitive elements was described as one of the key hallmarks of tumorigenesis, we aimed to establish whether the methylation level of LINE-1 retrotransposons changes in cell-surface-bound fraction of circulating DNA (csbDNA) of lung cancer patients. Methylated CpG...
To date, aberrant DNA methylation has been shown to be one of the most common and early causes of malignant cell transformation and tumors of different localizations, including lung cancer. Cancer cell-specific methylated DNA has been found in the blood of cancer patients, indicating that cell-free DNA circulating in the blood (cirDNA) is a convenient tumor-associated DNA marker that can be used as...
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