Delivery of functional exogenous proteins by plant-derived vesicles to human cells in vitro. Garaeva, L., Kamyshinsky, R., Kil, Y., Varfolomeeva, E., Verlov, N., Komarova, E., Garmay, Y., Landa, S., Burdakov, V., Myasnikov, A., Vinnikov, I. A., Margulis, B., Guzhova, I., Kagansky, A., Konevega, A. L., & Shtam, T. Scientific reports, 11:6489, March, 2021. doi abstract bibtex Plant-derived extracellular vesicles (EVs) gain more and more attention as promising carriers of exogenous bioactive molecules to the human cells. Derived from various edible sources, these EVs are remarkably biocompatible, biodegradable and highly abundant from plants. In this work, EVs from grapefruit juice were isolated by differential centrifugation followed by characterization of their size, quantity and morphology by nanoparticle tracking analysis, dynamic light scattering, atomic force microscopy and cryo-electron microscopy (Cryo-EM). In Cryo-EM experiments, we visualized grapefruit EVs with the average size of 41 ± 13 nm, confirmed their round-shaped morphology and estimated the thickness of their lipid bilayer as 5.3 ± 0.8 nm. Further, using cell culture models, we have successfully demonstrated that native grapefruit-derived extracellular vesicles (GF-EVs) are highly efficient carriers for the delivery of the exogenous Alexa Fluor 647 labeled bovine serum albumin (BSA) and heat shock protein 70 (HSP70) into both human peripheral blood mononuclear cells and colon cancer cells. Interestingly, loading to plant EVs significantly ameliorated the uptake of exogenous proteins by human cells compared to the same proteins without EVs. Most importantly, we have confirmed the functional activity of human recombinant HSP70 in the colon cancer cell culture upon delivery by GF-EVs. Analysis of the biodistribution of GF-EVs loaded with I-labeled BSA in mice demonstrated a significant uptake of the grapefruit-derived extracellular vesicles by the majority of organs. The results of our study indicate that native plant EVs might be safe and effective carriers of exogenous proteins into human cells.
@Article{Garaeva2021,
author = {Garaeva, Luiza and Kamyshinsky, Roman and Kil, Yury and Varfolomeeva, Elena and Verlov, Nikolai and Komarova, Elena and Garmay, Yuri and Landa, Sergey and Burdakov, Vladimir and Myasnikov, Alexander and Vinnikov, Ilya A. and Margulis, Boris and Guzhova, Irina and Kagansky, Alexander and Konevega, Andrey L. and Shtam, Tatiana},
journal = {Scientific reports},
title = {Delivery of functional exogenous proteins by plant-derived vesicles to human cells in vitro.},
year = {2021},
issn = {2045-2322},
month = mar,
pages = {6489},
volume = {11},
abstract = {Plant-derived extracellular vesicles (EVs) gain more and more attention as promising carriers of exogenous bioactive molecules to the human cells. Derived from various edible sources, these EVs are remarkably biocompatible, biodegradable and highly abundant from plants. In this work, EVs from grapefruit juice were isolated by differential centrifugation followed by characterization of their size, quantity and morphology by nanoparticle tracking analysis, dynamic light scattering, atomic force microscopy and cryo-electron microscopy (Cryo-EM). In Cryo-EM experiments, we visualized grapefruit EVs with the average size of 41 ± 13 nm, confirmed their round-shaped morphology and estimated the thickness of their lipid bilayer as 5.3 ± 0.8 nm. Further, using cell culture models, we have successfully demonstrated that native grapefruit-derived extracellular vesicles (GF-EVs) are highly efficient carriers for the delivery of the exogenous Alexa Fluor 647 labeled bovine serum albumin (BSA) and heat shock protein 70 (HSP70) into both human peripheral blood mononuclear cells and colon cancer cells. Interestingly, loading to plant EVs significantly ameliorated the uptake of exogenous proteins by human cells compared to the same proteins without EVs. Most importantly, we have confirmed the functional activity of human recombinant HSP70 in the colon cancer cell culture upon delivery by GF-EVs. Analysis of the biodistribution of GF-EVs loaded with I-labeled BSA in mice demonstrated a significant uptake of the grapefruit-derived extracellular vesicles by the majority of organs. The results of our study indicate that native plant EVs might be safe and effective carriers of exogenous proteins into human cells.},
chemicals = {HSP70 Heat-Shock Proteins, Nanocapsules, Serum Albumin, Bovine},
citation-subset = {IM},
completed = {2021-10-15},
country = {England},
doi = {10.1038/s41598-021-85833-y},
issn-linking = {2045-2322},
issue = {1},
keywords = {Cells, Cultured; Citrus paradisi, chemistry; Extracellular Vesicles, chemistry, ultrastructure; HCT116 Cells; HSP70 Heat-Shock Proteins, administration & dosage; Humans; Leukocytes, Mononuclear, metabolism; Nanocapsules, chemistry, ultrastructure; Serum Albumin, Bovine, administration & dosage},
nlm-id = {101563288},
owner = {NLM},
pii = {6489},
pmc = {PMC7985202},
pmid = {33753795},
pubmodel = {Electronic},
pubstate = {epublish},
revised = {2021-10-15},
}
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