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

McCullough, Kenneth C.; Milona, Panagiota; Thomann-Harwood, Lisa; Demoulins, Thomas; Englezou, Pavlos; Suter, Rolf; Ruggli, Nicolas (2014). Self-Amplifying Replicon RNA Vaccine Delivery to Dendritic Cells by Synthetic Nanoparticles. Vaccines, 2(4), pp. 735-754. MDPI 10.3390/vaccines2040735

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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.

Item Type:

Journal Article (Review Article)

Division/Institute:

05 Veterinary Medicine > Department of Infectious Diseases and Pathobiology (DIP) > Institute of Virology and Immunology
05 Veterinary Medicine > Department of Infectious Diseases and Pathobiology (DIP)

UniBE Contributor:

McCullough, Kenneth; Milona, Panagiota; Demoulins, Thomas; Englezou, Pavlos and Ruggli, Nicolas

Subjects:

600 Technology > 630 Agriculture

ISSN:

2076-393X

Publisher:

MDPI

Language:

English

Submitter:

Monika Mumenthaler

Date Deposited:

12 Dec 2018 15:02

Last Modified:

12 Dec 2018 17:10

Publisher DOI:

10.3390/vaccines2040735

PubMed ID:

26344889

Uncontrolled Keywords:

nanoparticle delivery self-replicating replicon RNA targeting dendritic cells

BORIS DOI:

10.7892/boris.122116

URI:

https://boris.unibe.ch/id/eprint/122116

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