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Título:
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EV-associated miRNAs from peritoneal lavage as potential diagnostic biomarkers in colorectal cancer
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Autor/a:
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Roman-Canal, Berta; Tarragona Foradada, Jordi; Moiola, Cristian P.; Gatius Calderó, Sònia; Bonnin, Sarah; Ruiz Miró, Maria; Sierra, José Enrique; Rufas, Maria; González, Esperanza; Porcel Pérez, José Manuel; Gil-Moreno, Antonio; Falcon-Perez, Juan M.; Ponomarenko, Julia; Matias-Guiu, Xavier; Colás, Eva
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Notas:
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Background: Colorectal cancer (CRC) is the third leading cause of cancer-related mortality worldwide. Current systematic methods for diagnosing have inherent limitations so development of a minimally-invasive diagnosis, based on the identification of sensitive biomarkers in liquid biopsies could therefore facilitate screening among population at risk. Methods: In this study, we aim to develop a novel approach to identify highly sensitive and specific biomarkers by investigating the use of extracellular vesicles (EVs) isolated from the peritoneal lavage as a source of potential miRNA diagnostic biomarkers. We isolated EVs by ultracentrifugation from 25 ascitic fluids and 25 peritoneal lavages from non-cancer and CRC patients, respectively. Analysis of the expression of EV-associated miRNAs was performed using Taqman OpenArray technology through which we could detect 371 miRNAs. Results: 210 miRNAs were significantly dysregulated (adjusted p value < 0.05 and abs(logFC) ≥ 1). The top-10 miRNAs, which had the AUC value higher than 0.95, were miRNA-199b-5p, miRNA-150-5p, miRNA-29c-5p, miRNA-218-5p, miRNA-99a-3p, miRNA-383-5p, miRNA-199a-3p, miRNA-193a-5p, miRNA-10b-5p and miRNA-181c-5p. Conclusions: This finding opens the avenue to the use of EV-associated miRNA of peritoneal lavages as an untapped source of biomarkers for CRC.
EC hold a postdoctoral fellowship from the Departament de Salut of the Generalitat de Catalunya (SLT002/16/00274). This work was supported by grants: Discovery, validation and implementation of biomarkers for Precision Oncology (ISCIII PIE15/00029), CIBERONC (CB16/12/00231 and CB16/12/00328). Grups consolidats de la Generalitat de Catalunya (2017SGR1368 and 2017SGR1661). Work supported by IRBLleida BIOBANK (B.0000682) and Plataforma biobancos PT17/0015/0027. |
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Materia(s):
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-Colorectal cancer
-Biomarkers
-Diagnostic
-miRNAs
-Ascitic fluid |
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Derechos:
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cc-by (c) Roman-Canal et al., 2019
http://creativecommons.org/licenses/by/4.0/
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Tipo de documento:
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Artículo
Artículo - Versión publicada |
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Editor:
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BioMed Central
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Compartir:
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