RT info:eu-repo/semantics/article
T1 A DNA Vaccine Delivery Platform Based on Elastin-Like Recombinamer Nanosystems for Rift Valley Fever Virus
A1 González Valdivieso, Juan
A1 Borrego, Belén
A1 Girotti ., Alessandra
A1 Moreno, Sandra
A1 Brun, Alejandro
A1 Bermejo Martín, Jesús Francisco
A1 Arias Vallejo, Francisco Javier
K1 Rift Valley fever virus
K1 DNA vaccines
K1 elastin-like recombinamers (ELRs)
K1 vaccine technologies
K1 in vivo immunogenicity
AB This work analyzes the immunogenicity of six genetically engineered constructs based on elastin-like recombinamers (ELRs) fused to the Gn glycoprotein from Rift Valley fever virus (RVFV). Upon transfection, all constructs showed no effect on cell viability. While fusion constructs including ELR blocks containing hydrophobic amino acids (alanine or isoleucine) did not increase the expression of viral Gn in eukaryotic cells, glutamic acid- or valine-rich fusion proteins showed enhanced expression levels compared with the constructs encoding the viral antigen alone. However, in vivo DNA plasmid immunization assays determined that the more hydrophobic constructs reduced viremia levels after RVFV challenge to a higher extent than glutamic- or valine-rich encoding plasmids and were better inducers of cellular immunity as judged by in vitro restimulation experiments. Although the Gn-ELR fusion constructs did not surpass the protective efficacy of a plasmid vaccine expressing nonfused Gn, our results warrant further experiments directed to take advantage of the immunomodulatory potential of ELR biomaterials for improving vaccines against infectious diseases.
PB American Chemical Society
SN 1543-8384
YR 2020
FD 2020
LK https://uvadoc.uva.es/handle/10324/73862
UL https://uvadoc.uva.es/handle/10324/73862
LA eng
NO Molecular Pharmaceutics, 2020, vol. 17, n. 5, p. 1608-1620
NO Producción Científica
DS UVaDOC
RD 22-ene-2025