Targeted Delivery of Nanovaccine to Dendritic Cells via DC-Binding Peptides Induces Potent Antiviral Immunity in vivo
Ying Lu,* Ze-Hui Liu,* Ying-Xiang Li, Hui-Ling Xu, Wei-Huan Fang, Fang He Department of Veterinary Medicine, Institute of Preventive Veterinary Medicine & Zhejiang Provincial Key Laboratory of Preventive Veterinary Medicine, College of Animal Sciences, Zhejiang University, Hangzh...
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Dove Medical Press
2022-04-01
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| Series: | International Journal of Nanomedicine |
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| Online Access: | https://www.dovepress.com/targeted-delivery-of-nanovaccine-to-dendritic-cells-via-dc-binding-pep-peer-reviewed-fulltext-article-IJN |
| _version_ | 1811252433486086144 |
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| author | Lu Y Liu ZH Li YX Xu HL Fang WH He F |
| author_facet | Lu Y Liu ZH Li YX Xu HL Fang WH He F |
| author_sort | Lu Y |
| collection | DOAJ |
| description | Ying Lu,* Ze-Hui Liu,* Ying-Xiang Li, Hui-Ling Xu, Wei-Huan Fang, Fang He Department of Veterinary Medicine, Institute of Preventive Veterinary Medicine & Zhejiang Provincial Key Laboratory of Preventive Veterinary Medicine, College of Animal Sciences, Zhejiang University, Hangzhou, 310058, People’s Republic of China*These authors contributed equally to this workCorrespondence: Fang He, Department of Veterinary Medicine, Institute of Preventive Veterinary Medicine & Zhejiang Provincial Key Laboratory of Preventive Veterinary Medicine, College of Animal Sciences, Zhejiang University, 866 Yuhangtang Road, Hangzhou, 310058, People’s Republic of China, Email hefangzj@zju.edu.cnBackground: Dendritic cell (DC) targeted antigen delivery is a promising strategy to enhance vaccine efficacy and delivery of therapeutics. Self-assembling peptide-based nanoparticles and virus-like particles (VLPs) have attracted extensive interest as non-replicating vectors for nanovaccine design, based on their unique properties, including molecular specificity, biodegradability and biocompatibility. DCs are specialized antigen-presenting cells involved in antigen capture, processing, and presentation to initiate adaptive immune responses. Using DC-specific ligands for targeted delivery of antigens to DCs may be utilized as a promising strategy to drive efficient and strong immune responses.Methods: In this study, several candidates for DC-binding peptides (DCbps) were individually integrated into C-terminal of porcine circovirus type 2 (PCV2) Cap, a viral protein that could self-assemble into icosahedral VLPs with 60 subunits. The immunostimulatory adjuvant activity of DC-targeted VLPs was further evaluated in a vaccine model of PCV2 Cap.Results: With transmission electron microscopy (TEM), E. coli expressed Cap-DCbp fusion proteins were observed self-assembled into highly ordered VLPs. Further, in dynamic light scattering (DLS) analysis, chimeric VLPs exhibited similar particle size uniformity and narrow size distribution as compared to wild type Cap VLPs. With a distinctly higher targeting efficiency, DCbp3 integrated Cap VLPs (Cap-DCbp3) displayed enhanced antigen uptake and increased elicitation of antigen presentation-related factors in BM-DCs. Mice subcutaneously immunized with Cap-DCbp3 VLPs exhibited significantly higher levels of Cap-specific antibodies, neutralizing antibodies and intracellular cytokines than those with other DCbp integrated or wild type Cap VLPs without any DCbp. Interestingly, Cap-DCbp3 VLPs vaccine induces robust cellular immune response profile, including the efficient production of IFN-γ, IL-2 and IL-10. Meanwhile, the improved proliferation index in lymphocytes with Cap-DCbp3 was also detected as compared to other VLPs.Conclusion: This study described the potential of DC-binding peptides for further improved antigen delivery and vaccine efficacy, explainning nanovaccine optimization in relation to a range of emerging and circulating infectious pathogens.Keywords: dendritic cell-targeted delivery, self-assembling peptide-based nanoparticles, virus-like particles, nanovaccine, enhanced immunogenicity |
| first_indexed | 2024-04-12T16:34:24Z |
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| issn | 1178-2013 |
| language | English |
| last_indexed | 2024-04-12T16:34:24Z |
| publishDate | 2022-04-01 |
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| series | International Journal of Nanomedicine |
| spelling | doaj.art-2bd9bbb1c5fd4d4d95df5f7a489d519a2022-12-22T03:25:01ZengDove Medical PressInternational Journal of Nanomedicine1178-20132022-04-01Volume 171593160874220Targeted Delivery of Nanovaccine to Dendritic Cells via DC-Binding Peptides Induces Potent Antiviral Immunity in vivoLu YLiu ZHLi YXXu HLFang WHHe FYing Lu,* Ze-Hui Liu,* Ying-Xiang Li, Hui-Ling Xu, Wei-Huan Fang, Fang He Department of Veterinary Medicine, Institute of Preventive Veterinary Medicine & Zhejiang Provincial Key Laboratory of Preventive Veterinary Medicine, College of Animal Sciences, Zhejiang University, Hangzhou, 310058, People’s Republic of China*These authors contributed equally to this workCorrespondence: Fang He, Department of Veterinary Medicine, Institute of Preventive Veterinary Medicine & Zhejiang Provincial Key Laboratory of Preventive Veterinary Medicine, College of Animal Sciences, Zhejiang University, 866 Yuhangtang Road, Hangzhou, 310058, People’s Republic of China, Email hefangzj@zju.edu.cnBackground: Dendritic cell (DC) targeted antigen delivery is a promising strategy to enhance vaccine efficacy and delivery of therapeutics. Self-assembling peptide-based nanoparticles and virus-like particles (VLPs) have attracted extensive interest as non-replicating vectors for nanovaccine design, based on their unique properties, including molecular specificity, biodegradability and biocompatibility. DCs are specialized antigen-presenting cells involved in antigen capture, processing, and presentation to initiate adaptive immune responses. Using DC-specific ligands for targeted delivery of antigens to DCs may be utilized as a promising strategy to drive efficient and strong immune responses.Methods: In this study, several candidates for DC-binding peptides (DCbps) were individually integrated into C-terminal of porcine circovirus type 2 (PCV2) Cap, a viral protein that could self-assemble into icosahedral VLPs with 60 subunits. The immunostimulatory adjuvant activity of DC-targeted VLPs was further evaluated in a vaccine model of PCV2 Cap.Results: With transmission electron microscopy (TEM), E. coli expressed Cap-DCbp fusion proteins were observed self-assembled into highly ordered VLPs. Further, in dynamic light scattering (DLS) analysis, chimeric VLPs exhibited similar particle size uniformity and narrow size distribution as compared to wild type Cap VLPs. With a distinctly higher targeting efficiency, DCbp3 integrated Cap VLPs (Cap-DCbp3) displayed enhanced antigen uptake and increased elicitation of antigen presentation-related factors in BM-DCs. Mice subcutaneously immunized with Cap-DCbp3 VLPs exhibited significantly higher levels of Cap-specific antibodies, neutralizing antibodies and intracellular cytokines than those with other DCbp integrated or wild type Cap VLPs without any DCbp. Interestingly, Cap-DCbp3 VLPs vaccine induces robust cellular immune response profile, including the efficient production of IFN-γ, IL-2 and IL-10. Meanwhile, the improved proliferation index in lymphocytes with Cap-DCbp3 was also detected as compared to other VLPs.Conclusion: This study described the potential of DC-binding peptides for further improved antigen delivery and vaccine efficacy, explainning nanovaccine optimization in relation to a range of emerging and circulating infectious pathogens.Keywords: dendritic cell-targeted delivery, self-assembling peptide-based nanoparticles, virus-like particles, nanovaccine, enhanced immunogenicityhttps://www.dovepress.com/targeted-delivery-of-nanovaccine-to-dendritic-cells-via-dc-binding-pep-peer-reviewed-fulltext-article-IJNdendritic cell targeted deliveryself-assembling peptide-based nanoparticlesvirus-like particlesnanovaccineenhanced immunogenicity |
| spellingShingle | Lu Y Liu ZH Li YX Xu HL Fang WH He F Targeted Delivery of Nanovaccine to Dendritic Cells via DC-Binding Peptides Induces Potent Antiviral Immunity in vivo International Journal of Nanomedicine dendritic cell targeted delivery self-assembling peptide-based nanoparticles virus-like particles nanovaccine enhanced immunogenicity |
| title | Targeted Delivery of Nanovaccine to Dendritic Cells via DC-Binding Peptides Induces Potent Antiviral Immunity in vivo |
| title_full | Targeted Delivery of Nanovaccine to Dendritic Cells via DC-Binding Peptides Induces Potent Antiviral Immunity in vivo |
| title_fullStr | Targeted Delivery of Nanovaccine to Dendritic Cells via DC-Binding Peptides Induces Potent Antiviral Immunity in vivo |
| title_full_unstemmed | Targeted Delivery of Nanovaccine to Dendritic Cells via DC-Binding Peptides Induces Potent Antiviral Immunity in vivo |
| title_short | Targeted Delivery of Nanovaccine to Dendritic Cells via DC-Binding Peptides Induces Potent Antiviral Immunity in vivo |
| title_sort | targeted delivery of nanovaccine to dendritic cells via dc binding peptides induces potent antiviral immunity in vivo |
| topic | dendritic cell targeted delivery self-assembling peptide-based nanoparticles virus-like particles nanovaccine enhanced immunogenicity |
| url | https://www.dovepress.com/targeted-delivery-of-nanovaccine-to-dendritic-cells-via-dc-binding-pep-peer-reviewed-fulltext-article-IJN |
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