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Rodrigues-Jesus MJ, Fotoran WL, Cardoso RM, Araki K, Wunderlich G, Ferreira LCS. Nano-multilamellar lipid vesicles (NMVs) enhance protective antibody responses against Shiga toxin (Stx2a) produced by enterohemorrhagic Escherichia coli strains (EHEC). Braz J Microbiol 2019; 50:67-77. [PMID: 30637647 PMCID: PMC6863297 DOI: 10.1007/s42770-018-0035-0] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2018] [Accepted: 09/24/2018] [Indexed: 01/08/2023] Open
Abstract
Microlipid vesicles (MLV) have a broad spectrum of applications for the delivery of molecules, ranging from chemical compounds to proteins, in both in vitro and in vivo conditions. In the present study, we developed a new set of nanosize multilayer lipid vesicles (NMVs) containing a unique combination of lipids. The NMVs enable the adsorption of histidine-tagged proteins at the vesicle surface and were demonstrated to be suitable for the in vivo delivery of antigens. The NMVs contained a combination of neutral (DOPC) and anionic (DPPG) lipids in the inner membrane and an external layer composed of DOPC, cholesterol, and a nickel-containing lipid (DGS-NTA [Ni]). NMVs combined with a recombinant form of the B subunit of the Shiga toxin (rStx2B) produced by certain enterohemorragic Escherichia coli (EHEC) strains enhanced the immunogenicity of the antigen after parenteral administration to mice. Mice immunized with rStx2B-loaded NMVs elicited serum antibodies capable of neutralizing the toxic activities of the native toxin; this result was demonstrated both in vitro and in vivo. Taken together, these results demonstrated that the proposed NMVs represent an alternative for the delivery of antigens, including recombinant proteins, generated in different expression systems.
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Affiliation(s)
- M J Rodrigues-Jesus
- Vaccine Development Laboratory, Department of Microbiology, Institute of Biomedical Sciences, University of São Paulo, Av. Prof. Lineu Prestes, 1374, Cidade Universitária, São Paulo, SP, 05508-900, Brazil
| | - W L Fotoran
- Unit for Drug Development and Plasmodium Molecular Biology, Department of Parasitology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - R M Cardoso
- Supramolecular Chemistry and Nanotechnology Laboratory, Department of Fundamental Chemistry, Institute of Chemistry, University of São Paulo, São Paulo, Brazil
| | - K Araki
- Supramolecular Chemistry and Nanotechnology Laboratory, Department of Fundamental Chemistry, Institute of Chemistry, University of São Paulo, São Paulo, Brazil
| | - G Wunderlich
- Unit for Drug Development and Plasmodium Molecular Biology, Department of Parasitology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - Luís C S Ferreira
- Vaccine Development Laboratory, Department of Microbiology, Institute of Biomedical Sciences, University of São Paulo, Av. Prof. Lineu Prestes, 1374, Cidade Universitária, São Paulo, SP, 05508-900, Brazil.
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Andrade LM, Cox L, Versiani AF, da Fonseca FG. A growing world of small things: a brief review on the nanostructured vaccines. Future Virol 2017. [DOI: 10.2217/fvl-2017-0086] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Vaccines are the most cost-effective intervention in the management of infectious disease. Much of what we perceive as quality of life is related to a good health status and disease absence, for which vaccines are substantially responsible. Nonetheless, there are many infectious diseases for which no vaccine solution is available. That could be due to limitations of the classic approaches to vaccine development, including inactivated, subunit and attenuated vaccines. Nanostructured immunogens belong to a class of nonclassic vaccines in which nanostructures are loaded with antigen-related molecules. Here, we briefly review important features of the nanostructured vaccines – mainly those based in carbon nanotubes and gold nanorods – and discuss their use to prevent infectious diseases, especially those caused by viruses.
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Affiliation(s)
- Lídia M Andrade
- Laboratório de Nanomateriais, Departamento de Física, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brasil
- NanoBioMedical Research Group, Departamento de Física, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brasil
| | - Laura Cox
- NanoBioMedical Research Group, Departamento de Física, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brasil
- Laboratório de Virologia Básica e Aplicada, Departamento de Microbiologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Av. Antônio Carlos, 6627, Campus Pampulha, CEP: 31270–901, Belo Horizonte, MG, Brasil
| | - Alice F Versiani
- NanoBioMedical Research Group, Departamento de Física, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brasil
- Laboratório de Virologia Básica e Aplicada, Departamento de Microbiologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Av. Antônio Carlos, 6627, Campus Pampulha, CEP: 31270–901, Belo Horizonte, MG, Brasil
| | - Flávio G da Fonseca
- Laboratório de Virologia Básica e Aplicada, Departamento de Microbiologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Av. Antônio Carlos, 6627, Campus Pampulha, CEP: 31270–901, Belo Horizonte, MG, Brasil
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