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Chitosan/Calcium-Coated Ginsenoside Rb1 Phosphate Flower-like Microparticles as an Adjuvant to Enhance Immune Responses

文献类型： 外文期刊

作者： Song, Xinghui 1 ; Li, Huijuan 1 ; Zhang, Liheng 1 ; Zhang, Xiaozhan 2 ; Zhao, Li 2 ; Zhang, Gaiping 3 ; Cao, Shengbo 1 ; Liu, Yunchao 3 ;

作者机构： 1.Huazhong Agr Univ, State Key Lab Agr Microbiol, Wuhan 430070, Peoples R China

2.Henan Univ Anim Husb & Econ, Coll Vet Med, Zhengzhou 450046, Peoples R China

3.Henan Acad Agr Sci, Zhengzhou 450046, Peoples R China

关键词： GRb1; IL-4; CS; CaP; infectious bursal disease virus; vaccine; adjuvant

期刊名称：VETERINARY SCIENCES （ 影响因子：2.518； ）

ISSN：

年卷期： 2022 年 9 卷 7 期

页码：

收录情况： SCI

摘要： Simple Summary The field-level control over IBD is primarily via vaccination. The development of high effective IBV vaccine has drawing great attentions worldwide. Herein, the GRb1 was encap-sulated into Calcium phosphate and chitosan core-structure nanoparticles microspheres, which con-stitute a novel system for nanoparticle delivery (GRb1/IL-4@CS/Cap). The new nano-adjuvant de-livery system could induce the activation of chicken dendritic cells ( DCs ), with up-regulate the expression of MHC II and CD80, and increase the production of IL-1 beta and TNF-alpha. At the same time, it can trigger higher levels of IBDV-specific IgG and higher IgG2a/IgG1 ratio, and promote the production of IFN-gamma, TNF-alpha, IL-4, IL-6, IL-1 alpha, and IL-1 beta and other cytokines in chicken serum after vaccination, it provides an effective adjuvant system for the development of chicken IBDV attenu-ated vaccine. Infectious bursal disease (IBD) is a highly contagious immunocompromising disorder that caused great economic losses in the poultry industry. The field-level control over IBD is primarily via vaccination. The development of a highly effective IBV vaccine has drawn great attention worldwide. Chitosan/Calcium Phosphate (CS/CaP) nanoparticle was a newly developed effective biological delivery system for drug and antigen. Ginsenoside Rb1 is one of the main bioactive components of ginseng root extract, which has antioxidant, anti-inflammatory and immunological enhancement effects. Until now, the combined effect of CS/CaP and ginsenoside Rb1 on the chicken immune response had remained unknown. In this study, the GRb1 and IL-4 were encapsulated into Calcium phosphate and chitosan core structure nanoparticles microspheres (GRb1/IL-4@CS/CaP), and the effect of a newly developed delivery system on an infectious bursal disease virus (IBDV) attenuated vaccine was further evaluated. The results demonstrated that GRb1/IL-4@CS/CaP treatment could induce the activation of chicken dendritic cells (DCs), with the upregulated expression of MHCII and CD80, and the increased production of IL-1 beta and TNF-alpha. Importantly, GRb1/IL-4@CS/CaP could trigger a higher level of IBDV-specific IgG and a higher ratio of IgG2a/IgG1 than the traditional adjuvant groups, promoting the production of cytokine, including IFN-gamma, TNF-alpha, IL-4, IL-6, IL-1 alpha, and IL-1 beta, in chicken serum after 28 d and 42 d post-vaccine. Taken in all, GRb1/IL-4@CS/CaP could elicit prolonged vigorous immune responses for IBDV attenuated vaccine in chicken, which might provide an effective adjuvant system for avian vaccine development.

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