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Abstract

Ovarian cancer (OC) is the most lethal cancer of all gynecological malignancies, while endometrial cancer (EC) is the most common one. Current strategies for OC/EC diagnosis consist of the extraction of a solid tissue from the affected area. This sample enables the study of specific biomarkers and the genetic nature of the tumor. However, the tissue extraction is risky and painful for the patient and in some cases is unavailable in inaccessible tumors. Moreover, a tissue biopsy is expensive and requires a highly skilled gynecological surgery to pinpoint accurately which cannot be applied repeatedly. New alternatives that overcome these drawbacks are rising up nowadays, such as liquid biopsy. A liquid biopsy is the analysis of biomarkers in a non-solid biological tissue, mainly blood, which has remarkable advantages over the traditional method. The most studied cancer non-invasive biomarkers are circulating tumor cells (CTCs), circulating tumor DNA (ctDNA), and circulating free DNA (cfDNA). These circulating biomarkers play a key role in the understanding of metastasis and tumorigenesis, which could provide a better insight into the evolution of the tumor dynamics during treatment and disease progression. Liquid biopsy is an emerging non-invasive, safe and effective method with considerable potential for clinical diagnosis and treatment management in patients with OC and EC. Analysis of cfDNA and ctDNA will provide a better characterization of biomarkers and give rise to a wide range of clinical applications, such as early detection of OC/EC, the prediction of treatment responses due to the discovery of personalized tumor-related biomarkers, and therapeutic response monitoring.

<p>Circulating Cell-Free DNA or Circulating Tumor DNA in the Management of Ovarian and Endometrial Cancer</p>

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Abstract

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