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- Title
Single B cells reveal the antibody responses of rhesus macaques immunized with an inactivated enterovirus D68 vaccine.
- Authors
Zheng, Huiwen; Yang, Zening; Li, Bingxiang; Li, Heng; Guo, Lei; Song, Jie; Hou, Dongpei; Li, Nan; Yang, Jinxi; Wu, Qiongwen; Sun, Ming; Liu, Longding
- Abstract
Enterovirus D68 (EV-D68) infection may cause severe respiratory system manifestations in pediatric populations. Because of the lack of an effective preventive vaccine or specific therapeutic drug for this infection, the development of EV-D68-specific vaccines and antibodies has become increasingly important. In this study, we prepared an experimental EV-D68 vaccine inactivated by formaldehyde and found that the serum of rhesus macaques immunized with the inactivated EV-D68 vaccine exhibited potent neutralizing activity against EV-D68 virus in vitro. Subsequently, the antibody-mediated immune response of B cells elicited by the inactivated vaccine was evaluated in a rhesus monkey model. The binding activity, in vitro neutralization activity, and sequence properties of 28 paired antibodies from the rhesus macaques' EV-D68-specific single memory B cells were analyzed, and the EV-D68 VP1-specific antibody group was found to be the main constituent in vivo. Intriguingly, we also found a synergistic effect among the E15, E18 and E20 monoclonal antibodies from the rhesus macaques. Furthermore, we demonstrated the protective efficacy of maternal antibodies in suckling C57BL/6 mice. This study provides valuable information for the future development of EV-D68 vaccines.
- Subjects
RHESUS monkeys; ANTIBODY formation; MACAQUES; VACCINES; RESPIRATORY organs; IMMUNE response; B cells; MONOCLONAL antibodies
- Publication
Archives of Virology, 2020, Vol 165, Issue 8, p1777
- ISSN
0304-8608
- Publication type
Article
- DOI
10.1007/s00705-020-04676-6