An Intranasal Multivalent Epitope-Based Nanoparticle Vaccine Confers Broad Protection against Divergent Influenza Viruses.
ACS Nano
; 17(14): 13474-13487, 2023 07 25.
Article
en En
| MEDLINE
| ID: mdl-37395606
The development of a universal influenza vaccine to control public health threats from circulating and emerging influenza viruses is highly desirable. Here we report an intranasal multivalent epitope-based nanoparticle vaccine with broad protection against divergent influenza A and B viruses. Three highly conserved epitopes consisting of the A α-helix of hemagglutinin (H), the ectodomain of matrix protein 2 (M) and the HCA-2 of neuraminidase (N) are presented on a self-assembling recombinant human heavy chain ferritin cage (F) to generate the HMNF nanoparticle. Intranasal immunization of mice with HMNF mobilized potent immune responses, including high levels of antigen-specific antibodies and T cell-mediated responses, which exhibited cross-reactivity to various antigen mutations. Vaccination with HMNF conferred full protection against lethal challenge with divergent influenza A and B viruses. The broad protection of HMNF nanoparticles could be attributed to the synergistic function of antibodies and T cells. Moreover, the induced immune responses are long-lasting, and protection is maintained six months after vaccination. Our constructed HMNF nanoparticle can serve as a promising candidate for a universal influenza vaccine.
Palabras clave
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Orthomyxoviridae
/
Vacunas contra la Influenza
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Infecciones por Orthomyxoviridae
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Gripe Humana
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Nanopartículas
Límite:
Animals
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Humans
Idioma:
En
Revista:
ACS Nano
Año:
2023
Tipo del documento:
Article
Pais de publicación:
Estados Unidos