Artificially designed hepatitis B virus core particles composed of multiple epitopes of type A and O foot-and-mouth disease virus as a bivalent vaccine candidate

文献类型： 外文期刊

第一作者： Lei, Yao

作者： Lei, Yao;Shao, Junjun;Zhao, Furong;Li, Yangfan;Lei, Chenglin;Ma, Feifei;Chang, Huiyun;Zhang, Yongguang;Lei, Yao;Shao, Junjun;Zhao, Furong;Li, Yangfan;Chang, Huiyun;Zhang, Yongguang

作者机构：

关键词： bivalent vaccine candidate; foot-and-mouth disease virus; virus-like particles

期刊名称：JOURNAL OF MEDICAL VIROLOGY （ 影响因子：2.327； 五年影响因子：2.075 ）

ISSN： 0146-6615

年卷期： 2019 年 91 卷 12 期

页码：

收录情况： SCI

摘要： Recently, many countries, including China, have experienced a series of type A and O foot-and-mouth disease virus (FMDV) epidemics, causing serious economic losses. Although concerns about the safety of inactivated FMD vaccines have been raised, the development of a safe and effective subunit vaccine is necessary. We constructed two chimeric virus-like particles (VLPs; rHBc/AO and rHBc/AOT VLPs) displaying tandem repeats of B cell epitopes (VP1 residue 134-161 and 200-213) derived from type A and O FMDV and one T cell epitope (3 A residue 21-35) using the truncated hepatitis B virus core (HBc) carrier. Our results indicate that the chimeric HBc can self-assemble into VLPs with these FMDV epitopes displayed on the surface. Immunization with the chimeric VLPs induced specific IgG and neutralization antibodies against type A and O FMDV in mice. Compared with the commercial type A/O FMDV bivalent inactivated vaccine, rHBc/AO and rHBc/AOT VLPs significantly stimulated the production of Th1 type cytokines (IFN-gamma and IL-2), whereas Th2 cytokine production (IL-4 and IL-10) was decreased. Compared with rHBc/AO, rHBc/AOT induced increased Th2 cytokine and specific IgG production. These results demonstrate that the VLPs constructed in the current study induced both humoral and cellular immune responses and may represent potential bivalent VLP vaccines targeting both FMDV type A and O strains.

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