NanoSSIEFARL polymeric nanoparticles-based immunotherapeutic for the treatment of genital herpes

Abstract This study aimed to investigate the therapeutic potential of a nanoparticle formulation containing the immunodominant peptide SSIEFARL from Herpes simplex virus 2 glycoprotein B A against genital herpes. A nanoparticle formulation (NanoSSIEFARL) was engineered and characterized for its phys...

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Main Authors: Renata Zorzetto, Flávia Pires Peña, Aline Cláudio de Oliveira, Jayme de Castilhos Ferreira Neto, Gabriel Tardin Mota Hilario, Fernanda Teresa Bovi Frozza, Marvin Paulo Lins, Fernanda Poletto, Marcelo Jung Eberhardt, Pedro Roosevelt Torres Romão, Tanira Alessandra Silveira Aguirre, Luiz Carlos Rodrigues Junior
Format: Article
Language:English
Published: Associação Brasileira de Polímeros 2025-04-01
Series:Polímeros
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Online Access:http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0104-14282025000200601&lng=en&tlng=en
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Summary:Abstract This study aimed to investigate the therapeutic potential of a nanoparticle formulation containing the immunodominant peptide SSIEFARL from Herpes simplex virus 2 glycoprotein B A against genital herpes. A nanoparticle formulation (NanoSSIEFARL) was engineered and characterized for its physicochemical and immunomodulatory properties. NanoSSIEFARL displayed mean particle size of 212 ± 5 nm, polydispersity index of 0.12 ± 0.01 and zeta potential of -7.4 ± 2.5 mV, exhibiting spherical morphology. pH stability remained consistent over 30 days (day 0: 4.5 ± 0.5; day 30: 5.0 ± 0.5). A novel high-performance liquid chromatography method was validated for SSIEFARL quantification. Peptide association efficiency reached 98.3% ± 2.1, with 41.6% ± 4.4 peptide release from nanoparticles after 4 hours. Cytotoxicity assessment revealed cellular viability exceeding 90%, with macrophage uptake observed after 4 hours. Altogether, these results suggest that NanoSSIEFARL is a promising candidate for effective immunotherapy against genital herpes.
ISSN:1678-5169