Effective transcutaneous immunization using a combination of iontophoresis and nanoparticles

Autor(es)

Bernardi, Daniela S. ; Bitencourt, Claudia ; da Silveira, Denise S. C. ; da Cruz, Estael L. C. M. ; Pereira-da-Silva, Marcelo A. ; Faccioli, Lucia Helena ; Lopez, Renata F. V.

• Tipo de documento: Artigo Científico
• Fonte: Nanomedicine-Nanotechnology Biology and Medicine; v. 12, n. 8, p. 2439-2448, NOV 2016.
• Citações Web of Science: 12

Resumo

Needle-free immunization strategies have been sought for years. Transcutaneous immunization using electroporation has been studied, but the high electrical voltage that must be applied may be painful and cause irreversible cell damage. The application of a weak electric field, such as in iontophoresis, has never been attempted. The aim of this work was to verify the potential of employing iontophoresis for transcutaneous immunization using ovalbumin (OVA) as a model antigen. To target the antigen presenting cells that are located in the viable epidermis, a vaccine formulation composed of OVA-loaded liposomes and silver nanoparticles (NPAg) was developed. In vitro cathodal iontophoresis of the OVA-liposomes associated with NPAg increased OVA penetration into the viable epidermis by 92-fold in comparison to passive delivery. In vivo, transcutaneous immunization with a suitable combination of liposome and iontophoresis induced the production of antibodies, differentiation of immune-competent cells and appeared to present an alternative strategy for needle-free vaccination. (C) 2016 Published by Elsevier Inc. (AU)

• Processo FAPESP: 12/05177-3 - Iontoforese na imunização transcutânea com sistemas nanoparticulados
• Beneficiário: Renata Fonseca Vianna Lopez
• Modalidade de apoio: Auxílio à Pesquisa - Regular
• Processo FAPESP: 14/07125-6 - Novos aspectos funcionais dos eicosanóides
• Beneficiário: Lúcia Helena Faccioli
• Modalidade de apoio: Auxílio à Pesquisa - Temático
• Processo FAPESP: 11/13307-1 - Influência da iontoforese na imunização transcutânea utilizando lipossomas e nanopartículas metálicas
• Beneficiário: Daniela Spuri Bernardi
• Modalidade de apoio: Bolsas no Brasil - Doutorado
• Processo FAPESP: 14/22451-7 - Sistemas de liberação sustentada e direcionada de fármacos para o tecido epitelial
• Beneficiário: Renata Fonseca Vianna Lopez
• Modalidade de apoio: Auxílio à Pesquisa - Temático