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Self-Amplifying Replicon RNA Vaccine Delivery to Dendritic Cells by Synthetic Nanoparticles

Dendritic cells (DC) play essential roles determining efficacy of vaccine delivery with respect to immune defence development and regulation. This renders DCs important targets for vaccine delivery, particularly RNA vaccines. While delivery of interfering RNA oligonucleotides to the appropriate intr...

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Autores principales: McCullough, Kenneth C., Milona, Panagiota, Thomann-Harwood, Lisa, Démoulins, Thomas, Englezou, Pavlos, Suter, Rolf, Ruggli, Nicolas
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2014
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4494254/
https://www.ncbi.nlm.nih.gov/pubmed/26344889
http://dx.doi.org/10.3390/vaccines2040735
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author McCullough, Kenneth C.
Milona, Panagiota
Thomann-Harwood, Lisa
Démoulins, Thomas
Englezou, Pavlos
Suter, Rolf
Ruggli, Nicolas
author_facet McCullough, Kenneth C.
Milona, Panagiota
Thomann-Harwood, Lisa
Démoulins, Thomas
Englezou, Pavlos
Suter, Rolf
Ruggli, Nicolas
author_sort McCullough, Kenneth C.
collection PubMed
description Dendritic cells (DC) play essential roles determining efficacy of vaccine delivery with respect to immune defence development and regulation. This renders DCs important targets for vaccine delivery, particularly RNA vaccines. While delivery of interfering RNA oligonucleotides to the appropriate intracellular sites for RNA-interference has proven successful, the methodologies are identical for RNA vaccines, which require delivery to RNA translation sites. Delivery of mRNA has benefitted from application of cationic entities; these offer value following endocytosis of RNA, when cationic or amphipathic properties can promote endocytic vesicle membrane perturbation to facilitate cytosolic translocation. The present review presents how such advances are being applied to the delivery of a new form of RNA vaccine, replicons (RepRNA) carrying inserted foreign genes of interest encoding vaccine antigens. Approaches have been developed for delivery to DCs, leading to the translation of the RepRNA and encoded vaccine antigens both in vitro and in vivo. Potential mechanisms favouring efficient delivery leading to translation are discussed with respect to the DC endocytic machinery, showing the importance of cytosolic translocation from acidifying endocytic structures. The review relates the DC endocytic pathways to immune response induction, and the potential advantages for these self-replicating RNA vaccines in the near future.
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spelling pubmed-44942542015-08-31 Self-Amplifying Replicon RNA Vaccine Delivery to Dendritic Cells by Synthetic Nanoparticles McCullough, Kenneth C. Milona, Panagiota Thomann-Harwood, Lisa Démoulins, Thomas Englezou, Pavlos Suter, Rolf Ruggli, Nicolas Vaccines (Basel) Review Dendritic cells (DC) play essential roles determining efficacy of vaccine delivery with respect to immune defence development and regulation. This renders DCs important targets for vaccine delivery, particularly RNA vaccines. While delivery of interfering RNA oligonucleotides to the appropriate intracellular sites for RNA-interference has proven successful, the methodologies are identical for RNA vaccines, which require delivery to RNA translation sites. Delivery of mRNA has benefitted from application of cationic entities; these offer value following endocytosis of RNA, when cationic or amphipathic properties can promote endocytic vesicle membrane perturbation to facilitate cytosolic translocation. The present review presents how such advances are being applied to the delivery of a new form of RNA vaccine, replicons (RepRNA) carrying inserted foreign genes of interest encoding vaccine antigens. Approaches have been developed for delivery to DCs, leading to the translation of the RepRNA and encoded vaccine antigens both in vitro and in vivo. Potential mechanisms favouring efficient delivery leading to translation are discussed with respect to the DC endocytic machinery, showing the importance of cytosolic translocation from acidifying endocytic structures. The review relates the DC endocytic pathways to immune response induction, and the potential advantages for these self-replicating RNA vaccines in the near future. MDPI 2014-10-16 /pmc/articles/PMC4494254/ /pubmed/26344889 http://dx.doi.org/10.3390/vaccines2040735 Text en © 2014 by the authors; licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Review
McCullough, Kenneth C.
Milona, Panagiota
Thomann-Harwood, Lisa
Démoulins, Thomas
Englezou, Pavlos
Suter, Rolf
Ruggli, Nicolas
Self-Amplifying Replicon RNA Vaccine Delivery to Dendritic Cells by Synthetic Nanoparticles
title Self-Amplifying Replicon RNA Vaccine Delivery to Dendritic Cells by Synthetic Nanoparticles
title_full Self-Amplifying Replicon RNA Vaccine Delivery to Dendritic Cells by Synthetic Nanoparticles
title_fullStr Self-Amplifying Replicon RNA Vaccine Delivery to Dendritic Cells by Synthetic Nanoparticles
title_full_unstemmed Self-Amplifying Replicon RNA Vaccine Delivery to Dendritic Cells by Synthetic Nanoparticles
title_short Self-Amplifying Replicon RNA Vaccine Delivery to Dendritic Cells by Synthetic Nanoparticles
title_sort self-amplifying replicon rna vaccine delivery to dendritic cells by synthetic nanoparticles
topic Review
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4494254/
https://www.ncbi.nlm.nih.gov/pubmed/26344889
http://dx.doi.org/10.3390/vaccines2040735
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