Spy&IAC enables specific capture of SpyTagged proteins for rapid assembly of plug-and-display nanoparticle vaccines
文献类型: 外文期刊
作者: Chen, Yilan 1 ; Ding, Peiyang 3 ; Li, Minghui 2 ; Liu, Siyuan 2 ; Chang, Zejie 2 ; Ren, Dongna 1 ; Li, Ruiqi 2 ; Zhang, Ning 1 ; Sun, Xueke 2 ; Zhang, Gaiping 1 ;
作者机构: 1.Northwest A&F Univ, Coll Vet Med, Yangling 712100, Peoples R China
2.Henan Acad Agr Sci, Henan Prov Key Lab Anim Immunol, Zhengzhou 450002, Peoples R China
3.Zhengzhou Univ, Coll Life Sci, Zhengzhou 450001, Peoples R China
4.Henan Agr Univ, Coll Anim Sci & Vet Med, Zhengzhou 450002, Peoples R China
5.Yangzhou Univ, Jiangsu Coinnovat Ctr Prevent & Control Important, Yangzhou 225009, Peoples R China
关键词: SpyTag; Immunoaffinity chromatography; Modular assembly; Nanoparticles; Coronavirus
期刊名称:INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES ( 影响因子:8.2; 五年影响因子:7.8 )
ISSN: 0141-8130
年卷期: 2023 年 226 卷
页码:
收录情况: SCI
摘要: From modular vaccine production to protein assembly on nanoparticles, the SpyCatcher/SpyTag system provides a convenient plug-and-display procedure. Here, we established a general-purpose immunoaffinity chromatog- raphy (IAC) method for SpyTagged proteins (Spy&IAC). SpyTags are displayed on the surface of nanoparticles to induce high-affinity monoclonal antibodies, allowing the specific capture of the target protein. Taking the key core antigenic regions of two coronaviruses that are currently more threatened in the field of human and animal diseases, the nucleocapsid (N) protein of SARS-CoV-2 and the COE protein of porcine epidemic diarrhea virus (PEDV) as model proteins, a purification model with SpyTag at the N-terminal or C-terminal expressed in E. coli or mammalian cells was constructed. After the efficient elution of Spy&IAC, the final yield of several proteins is about 3.5-15 mg/L culture, and the protein purity is above 90 %. Purification also preserves the assembly function and immunogenicity of the protein to support subsequent modular assembly and immunization pro- grams. This strategy provides a general tool for the efficient purification of SpyTagged proteins from different expression sources and different tag positions, enabling the production of modular vaccines at lower cost and in a shorter time, which will prepare the public health field for potential pandemic threats.
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