Exogenous loading of miRNAs into small extracellular vesicles
Abstract Small extracellular vesicles (sEVs), through their natural ability to interact with biological membranes and exploit endogenous processing pathways to convey biological information, are quintessential for the delivery of therapeutically relevant compounds, such as microRNAs (miRNAs) and pro...
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doaj-4484de6cbf564657ba2c609e2c3bab5b2021-08-20T05:48:33ZengTaylor & Francis GroupJournal of Extracellular Vesicles2001-30782021-08-011010n/an/a10.1002/jev2.12111Exogenous loading of miRNAs into small extracellular vesiclesRicardo C. deAbreu0Cristiana V. Ramos1Clarissa Becher2Miguel Lino3Carlos Jesus4Paula A. daCosta Martins5Patrícia A. T. Martins6Maria João Moreno7Hugo Fernandes8Lino Ferreira9CNC ‐ Centro de Neurociências e Biologia Celular CIBB ‐ Centro de Inovação em Biomedicina e Biotecnologia University of Coimbra Coimbra PortugalChemistry Department Faculty of Science and Technology Coimbra Chemistry Centre University of Coimbra Coimbra PortugalCNC ‐ Centro de Neurociências e Biologia Celular CIBB ‐ Centro de Inovação em Biomedicina e Biotecnologia University of Coimbra Coimbra PortugalCNC ‐ Centro de Neurociências e Biologia Celular CIBB ‐ Centro de Inovação em Biomedicina e Biotecnologia University of Coimbra Coimbra PortugalCNC ‐ Centro de Neurociências e Biologia Celular CIBB ‐ Centro de Inovação em Biomedicina e Biotecnologia University of Coimbra Coimbra PortugalFaculty of Health, Medicine and Life Sciences CARIM School for Cardiovascular Diseases Maastricht University Maastricht The NetherlandsCNC ‐ Centro de Neurociências e Biologia Celular CIBB ‐ Centro de Inovação em Biomedicina e Biotecnologia University of Coimbra Coimbra PortugalChemistry Department Faculty of Science and Technology Coimbra Chemistry Centre University of Coimbra Coimbra PortugalCNC ‐ Centro de Neurociências e Biologia Celular CIBB ‐ Centro de Inovação em Biomedicina e Biotecnologia University of Coimbra Coimbra PortugalCNC ‐ Centro de Neurociências e Biologia Celular CIBB ‐ Centro de Inovação em Biomedicina e Biotecnologia University of Coimbra Coimbra PortugalAbstract Small extracellular vesicles (sEVs), through their natural ability to interact with biological membranes and exploit endogenous processing pathways to convey biological information, are quintessential for the delivery of therapeutically relevant compounds, such as microRNAs (miRNAs) and proteins. Here, we used a fluorescently‐labelled miRNA to quantify the efficiency of different methods to modulate the cargo of sEVs. Our results showed that, compared with electroporation, heat shock, permeation by a detergent‐based compound (saponin) or cholesterol‐modification of the miRNA, Exo‐Fect was the most efficient method with > 50% transfection efficiency. Furthermore, qRT‐PCR data showed that, compared with native sEVs, Exo‐Fect modulation led to a > 1000‐fold upregulation of the miRNA of interest. Importantly, this upregulation was observed for sEVs isolated from multiple sources. The modulated sEVs were able to delivery miR‐155‐5p into a reporter cell line, confirming the successful delivery of the miRNA to the target cell and, more importantly, its functionality. Finally, we showed that the membrane of Exo‐Fect‐loaded sEVs was altered compared with native sEVs and that enhanced the internalization of Exo‐Fect‐loaded sEVs within the target cells and decreased the interaction of those modulated sEVs with lysosomes.https://doi.org/10.1002/jev2.12111extracellular vesiclesmicroRNAmodulationpost‐isolation |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Ricardo C. deAbreu Cristiana V. Ramos Clarissa Becher Miguel Lino Carlos Jesus Paula A. daCosta Martins Patrícia A. T. Martins Maria João Moreno Hugo Fernandes Lino Ferreira |
spellingShingle |
Ricardo C. deAbreu Cristiana V. Ramos Clarissa Becher Miguel Lino Carlos Jesus Paula A. daCosta Martins Patrícia A. T. Martins Maria João Moreno Hugo Fernandes Lino Ferreira Exogenous loading of miRNAs into small extracellular vesicles Journal of Extracellular Vesicles extracellular vesicles microRNA modulation post‐isolation |
author_facet |
Ricardo C. deAbreu Cristiana V. Ramos Clarissa Becher Miguel Lino Carlos Jesus Paula A. daCosta Martins Patrícia A. T. Martins Maria João Moreno Hugo Fernandes Lino Ferreira |
author_sort |
Ricardo C. deAbreu |
title |
Exogenous loading of miRNAs into small extracellular vesicles |
title_short |
Exogenous loading of miRNAs into small extracellular vesicles |
title_full |
Exogenous loading of miRNAs into small extracellular vesicles |
title_fullStr |
Exogenous loading of miRNAs into small extracellular vesicles |
title_full_unstemmed |
Exogenous loading of miRNAs into small extracellular vesicles |
title_sort |
exogenous loading of mirnas into small extracellular vesicles |
publisher |
Taylor & Francis Group |
series |
Journal of Extracellular Vesicles |
issn |
2001-3078 |
publishDate |
2021-08-01 |
description |
Abstract Small extracellular vesicles (sEVs), through their natural ability to interact with biological membranes and exploit endogenous processing pathways to convey biological information, are quintessential for the delivery of therapeutically relevant compounds, such as microRNAs (miRNAs) and proteins. Here, we used a fluorescently‐labelled miRNA to quantify the efficiency of different methods to modulate the cargo of sEVs. Our results showed that, compared with electroporation, heat shock, permeation by a detergent‐based compound (saponin) or cholesterol‐modification of the miRNA, Exo‐Fect was the most efficient method with > 50% transfection efficiency. Furthermore, qRT‐PCR data showed that, compared with native sEVs, Exo‐Fect modulation led to a > 1000‐fold upregulation of the miRNA of interest. Importantly, this upregulation was observed for sEVs isolated from multiple sources. The modulated sEVs were able to delivery miR‐155‐5p into a reporter cell line, confirming the successful delivery of the miRNA to the target cell and, more importantly, its functionality. Finally, we showed that the membrane of Exo‐Fect‐loaded sEVs was altered compared with native sEVs and that enhanced the internalization of Exo‐Fect‐loaded sEVs within the target cells and decreased the interaction of those modulated sEVs with lysosomes. |
topic |
extracellular vesicles microRNA modulation post‐isolation |
url |
https://doi.org/10.1002/jev2.12111 |
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