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Título: | Liquid biopsy by NGS: Differential presence of exons (DPE) is related to metastatic potential in a colon-cancer model in the rat |
Autor: | García-Olmo, Dolores C.; Peiró-Pastor, Ramón CSIC ORCID; Picazo, María G.; Olmedillas-López, Susana; García-Arranz, Mariano; Aguado, Begoña CSIC ORCID; García-Olmo, Damián | Fecha de publicación: | 16-jul-2020 | Citación: | Translational Oncology 13 (2020) | Resumen: | Differential presence of exons (DPE) is a method of interpretation of exome sequencing, which has been proposed to design a predictive algorithm with clinical value in patients with colorectal cancer (CRC). The goal of the present study was to examine the reproducibility in a rat model of metastatic colon cancer. DHD/K12-TRb cells were injected in syngenic immunocompetent BD-IX rats. Cells were from two stocks with low and normal metastatic potential, and injected into two separate groups of rats. Five to ten weeks after injection, blood samples were taken prior euthanasia and whole exome sequencing performed. Through DPE analysis, we identified a set of exons whose differential presence in plasma allowed us to compare both groups of tumor-bearing animals. A verification test was performed to confirm that the algorithm was able to classify extracted samples into their corresponding groups of origin. The highest mean probability was 0.8954. In conclusion, the DPE analysis in tumor-bearing animals was able to discriminate between different disease status, which fully supports previous results in CRC patients. | Versión del editor: | http://dx.doi.org/10.1016/j.tranon.2020.100837 | URI: | http://hdl.handle.net/10261/237416 | DOI: | 10.1016/j.tranon.2020.100837 | Identificadores: | doi: 10.1016/j.tranon.2020.100837 issn: 1936-5233 |
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