A novel combined vaccine based on monochimeric VLP co-displaying multiple conserved epitopes against enterovirus 71 and varicella-zoster virus

作者：Wu, Yangtao; Zhu, Rui; Xu, Longfa; Li, Yongchao; Li, Shuxuan; Yu, Hai; Li, Shaowei; Zhu, Hua; Cheng, Tong^*; Xia, Ningshao

来源：Vaccine, 2017, 35(20): 2728-2735.

DOI：10.1016/j.vaccine.2017.03.065

• Enterovirus 71
• Varicella-zoster virus
• Neutralizing epitopes
• Combined vaccine

Chicken pox and hand, foot and mouth disease (HFMD) are two major infectious diseases that mainly affect infants and children, causing significant morbidity annually. Varicella-zoster virus (VZV) and enterovirus 71 (EV71), respectively, are the principal epidemic pathogens causing these two diseases. To investigate the possibility of developing a novel combined vaccine to prevent chicken pox and HFMD, we constructed three chimeric virus-like particles (VLPs) (termed HBc-V/1/2, HBc-2/V/1 and HBc-1/2/V) based on the hepatitis B core antigen (HBc) carrier that display epitopes derived from VZV-gE, EV71-VP1, and EV71-VP2 in a varied tandem manner. The chimeric HBc can self-assemble into VLPs with these three epitopes displayed on the surface of particles. Epitope-specific antibody characterization suggested that HBc-V/1/2 elicits a balanced antibody response toward these three epitopes, and no immune interference was observed between the three epitopes. Importantly, the anti-HBc-V/1/2 sera could simultaneously neutralize VZV and EV71 and cross-neutralize coxsackievirus A16 (CVA16), another major pathogen causing HFMD. Moreover, the anti-HBc-V/1/2 sera protected neonatal mice from lethal challenge of EV71 and CVA16. Collectively, our study not only demonstrated that HBc-V/1/2 is a promising candidate combined vaccine for HFMD and Chicken pox but also provides a novel strategy for the design of combined vaccines.

• 出版日期2017-5-9
• 单位rutgers; 厦门大学