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Slovakova M, Janovska S, Sleha R, Radochova V, Hatala A, Mannova N, Metelka R, Pudelka L, Bostik P. Nasal Immunization Using Chitosan Nanoparticles with Glycoprotein B of Murine Cytomegalovirus. J Microbiol Biotechnol 2024; 34:663-672. [PMID: 38303144 PMCID: PMC11016792 DOI: 10.4014/jmb.2308.08008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2023] [Revised: 11/06/2023] [Accepted: 12/14/2023] [Indexed: 02/03/2024]
Abstract
The use of nanoparticles as a delivery system for a specific antigen could solve many limitations of mucosal vaccine applications, such as low immunogenicity, or antigen protection and stabilization. In this study, we tested the ability of nasally administered chitosan nanoparticles loaded with glycoprotein B of murine cytomegalovirus to induce an immune response in an animal model. The choice of chitosan nanoparticle type was made by in vitro evaluation of sorption efficiency and antigen release. Three types of chitosan nanoparticles were prepared: crosslinked with tripolyphosphate, coated with hyaluronic acid, and in complex with polycaprolactone. The hydrodynamic size of the nanoparticles by dynamic light scattering, zeta potential, Fourier transform infrared spectroscopy, scanning electron microscopy, stability, loading efficiency, and release kinetics with ovalbumin were evaluated. Balb/c mice were immunized intranasally using the three-dose protocol with nanoparticles, gB, and adjuvants Poly(I:C) and CpG ODN. Subsequently, the humoral and cell-mediated antigen-specific immune response was determined. On the basis of the properties of the tested nanoparticles, the cross-linked nanoparticles were considered optimal for further investigation. The results show that nanoparticles with Poly(I:C) and with gB alone raised IgG antibody levels above the negative control. In the case of mucosal IgA, only gB alone weakly induced the production of IgA antibodies compared to saline-immunized mice. The number of activated cells increased slightly in mice immunized with nanoparticles and gB compared to those immunized with gB alone or to negative control. The results demonstrated that chitosan nanoparticles could have potential in the development of mucosal vaccines.
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Affiliation(s)
- Marcela Slovakova
- University of Defence, Faculty of Military Health Sciences, Hradec Kralove 50001, Czech Republic
- University of Pardubice, Faculty of Chemical Technology, Pardubice 53201, Czech Republic
| | - Sylva Janovska
- University of Defence, Faculty of Military Health Sciences, Hradec Kralove 50001, Czech Republic
| | - Radek Sleha
- University of Defence, Faculty of Military Health Sciences, Hradec Kralove 50001, Czech Republic
- Charles University, Faculty of Medicine in Hradec Kralove, Hradec Kralove 50001, Czech Republic
| | - Vera Radochova
- University of Defence, Faculty of Military Health Sciences, Hradec Kralove 50001, Czech Republic
| | - Alexandra Hatala
- University of Pardubice, Faculty of Chemical Technology, Pardubice 53201, Czech Republic
| | - Nikola Mannova
- University of Pardubice, Faculty of Chemical Technology, Pardubice 53201, Czech Republic
| | - Radovan Metelka
- University of Pardubice, Faculty of Chemical Technology, Pardubice 53201, Czech Republic
| | - Ludovit Pudelka
- University of Defence, Faculty of Military Health Sciences, Hradec Kralove 50001, Czech Republic
| | - Pavel Bostik
- University of Defence, Faculty of Military Health Sciences, Hradec Kralove 50001, Czech Republic
- Charles University, Faculty of Medicine in Hradec Kralove, Hradec Kralove 50001, Czech Republic
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