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| Pàgina inicial > Articles > Articles publicats > Comparison of Extracellular Vesicle Isolation Methods for miRNA Sequencing |
| Data: | 2023 |
| Resum: | MicroRNAs (miRNAs) encapsulated in extracellular vesicles (EVs) are potential diagnostic and prognostic biomarkers. However, discrepancies in miRNA patterns and their validation are still frequent due to differences in sample origin, EV isolation, and miRNA sequencing methods. The aim of the present study is to find a reliable EV isolation method for miRNA sequencing, adequate for clinical application. To this aim, two comparative studies were performed in parallel with the same human plasma sample: (i) isolation and characterization of EVs obtained using three procedures: size exclusion chromatography (SEC), iodixanol gradient (GRAD), and its combination (SEC+GRAD) and (ii) evaluation of the yield of miRNA sequences obtained using NextSeq 500 (Illumina) and three miRNA library preparation protocols: NEBNext, NEXTFlex, and SMARTer smRNA-seq. The conclusion of comparison (i) is that recovery of the largest amount of EVs and reproducibility were attained with SEC, but GRAD and SEC+GRAD yielded purer EV preparations. The conclusion of (ii) is that the NEBNext library showed the highest reproducibility in the number of miRNAs recovered and the highest diversity of miRNAs. These results render the combination of GRAD EV isolation and NEBNext library preparation for miRNA retrieval as adequate for clinical applications using plasma samples. |
| Ajuts: | Instituto de Salud Carlos III PI18/00210 Instituto de Salud Carlos III PI19/00301 Instituto de Salud Carlos III PI19/00533 Instituto de Salud Carlos III PI21/00139 Instituto de Salud Carlos III PI22/00258 Ministerio de Economía y Competitividad CP14/00121 Ministerio de Economía y Competitividad SAF2014-52400-R Agencia Estatal de Investigación SAF2017-87846-R Fundaciό La Maratό de TV3 525/C/2021 Agencia Estatal de Investigación PID2020-113888RB-I00 Agencia Estatal de Investigación PID2021-126447OB-I00 |
| Drets: | Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, la comunicació pública de l'obra i la creació d'obres derivades, fins i tot amb finalitats comercials, sempre i quan es reconegui l'autoria de l'obra original. |
| Llengua: | Anglès |
| Document: | Article ; recerca ; Versió publicada |
| Matèria: | Extracellular vesicle isolation ; Mirna sequencing ; Diagnostic biomarker |
| Publicat a: | International journal of molecular sciences, Vol. 24 (july 2023) , ISSN 1422-0067 |
15 p, 1.8 MB |