ArticleInternational journal of nanomedicine2025
Article in International journal of nanomedicine, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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Who cites it
4 citing papers in PubMed.
- Chitosan nanoparticles for mucosal and needle-free vaccination.NPJ vaccines · 2026Review
- Advancements in nanomaterial-based adjuvants for animal vaccines.Materials today. Bio · 2026Article
- HACC-TNF-α-VLP Nanoparticles Facilitate HSP90-Dependent Antigen Cross-Presentation to Enhance CD8⁺ T Cell and Mucosal Immunity Against Foot-and-Mouth Disease.International journal of nanomedicine · 2026Article
- Naringenin as a phytogenic adjuvant systematically enhances the protective efficacy of H9N2 inactivated vaccine through coordinated innate-adaptive immune priming in chickens.Poultry science · 2025Article
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Authors and funding
7 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Background: Porcine epidemic diarrhea virus (PEDV) inactivated vaccine lacks an effective vaccine adjuvant as an immune activator. The aim of this study was to develop N-2-HACC-Al nano-adjuvant as a high immune-enhancing adjuvant and to make the vaccine suitable for intramuscular and oral administration. Methods: N-2-HACC-Al nano-adjuvant was prepared by ion crosslinking method using the N-2-hydroxypropyl trimethyl ammonium chloride chitosan (N-2-HACC). The N-2-HACC-Al nano-adjuvant was characterised, and its safety was determined by analysing the cytotoxicity and hemolysis. PED inactivated vaccine (N-2-HACC-Al/PEDV) was prepared by electrostatic adsorption method, and mice were inoculated by intramural injection and orally to evaluate the immune enhancement effect and application potential of the N-2-HACC-Al/PEDV. Results: The hemolysis rate was 3.89 ± 0.12% and the activity of PK15 cells was 77.40 ± 1.74%, indicating that the N-2-HACC-Al/PEDV had good biosafety. The levels of PEDV antibodies induced by the N-2-HACC-Al/PEDV were higher than those of commercially available vaccines, both by intramural injection and oral administration. Except for the serum IgG1 levels in the N-2-HACC-Al/PEDV injection group, which were similar to those in the commercial PEDV group, the serum IgG1, IgG2a, IgG2c and sIgA levels in the injection, and the oral groups were significantly higher than those in the commercial group. These results indicated and that N-2-HACC-Al nano-adjuvant significantly enhanced cellular immunity and N-2-HACC-Al nano-adjuvant could deliver PEDV antigen across the mucosal layer of the intestine and induced a strong mucosal immune response. Conclusion: N-2-HACC-Al nano-adjuvant is safe and can efficiently induce humoral, cellular and mucosal immunity efficiently, which provides a new idea for the development of oral mucosal vaccine adjuvant.
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