Cytochalasin-B-Inducible Nanovesicle Mimics of Natural Extracellular Vesicles That Are Capable of Nucleic Acid Transfer

Autor: Marina A. Zenkova, Alexandra Neumestova, Vera Matveeva, Anastasiya L. Oshchepkova, Valentin V. Vlassov, K. N. Morozova, Elena Kiseleva, Lyudmila Artemyeva
Rok vydání: 2019
Předmět:
Zdroj: Micromachines
Volume 10
Issue 11
Micromachines, Vol 10, Iss 11, p 750 (2019)
ISSN: 2072-666X
DOI: 10.3390/mi10110750
Popis: Extracellular vesicles provide cell-to-cell communication and have great potential for use as therapeutic carriers. This study was aimed at the development of an extracellular vesicle-based system for nucleic acid delivery. Three types of nanovesicles were assayed as oligonucleotide carriers: mesenchymal stem cell-derived extracellular vesicles and mimics prepared either by cell treatment with cytochalasin B or by vesicle generation from plasma membrane. Nanovesicles were loaded with a DNA oligonucleotide by freezing/thawing, sonication, or permeabilization with saponin. Oligonucleotide delivery was assayed using HEK293 cells. Extracellular vesicles and mimics were characterized by a similar oligonucleotide loading level but different efficiency of oligonucleotide delivery. Cytochalasin-B-inducible nanovesicles exhibited the highest level of oligonucleotide accumulation in HEK293 cells and a loading capacity of 0.44 ±
0.05 pmol/µ
g. The loaded oligonucleotide was mostly protected from nuclease action.
Databáze: OpenAIRE