A novel vaccine adjuvant based on straight polyacrylate potentiates vaccine-induced humoral and cellular immunity in cynomolgus macaques

被引:5
|
作者
Pavot, Vincent [1 ]
Bisceglia, Helene [1 ]
Guillaume, Florine [1 ]
Montano, Sandrine [1 ]
Zhang, Linong [2 ]
Boudet, Florence [1 ]
Haensler, Jean [1 ]
机构
[1] Sanofi Pasteur, Res & Dev Dept, Marcy Letoile, France
[2] Sanofi Pasteur, Res & Dev Dept, Cambridge, MA USA
关键词
Adjuvant; humoral immunity; memory B cells; cell-mediated immunity; mucosal immunity;
D O I
10.1080/21645515.2020.1855956
中图分类号
Q81 [生物工程学(生物技术)]; Q93 [微生物学];
学科分类号
071005 ; 0836 ; 090102 ; 100705 ;
摘要
Adjuvants are central to the efficacy of subunit vaccines. Although several new adjuvants have been approved in human vaccines over the last decade, the panel of adjuvants in licensed human vaccines remains small. There is still a need for novel adjuvants that can be safely used in humans, easy to source and to formulate with a wide range of antigens and would be broadly applicable to a wide range of vaccines. In this article, using the Respiratory Syncytial Virus (RSV) nanoparticulate prefusion F model antigen developed by Sanofi, we demonstrate in the macaque model that the polyacrylate (PAA)-based adjuvant SPA09 is well tolerated and increases vaccine antigen-specific humoral immunity (sustained neutralizing antibodies, memory B cells and mucosal immunity) and elicits strong T(H)1-type responses (based on IFN gamma and IL-2 ELISpots) in a dose-dependent manner. These data warrant further development of the SPA09 adjuvant for evaluation in clinical trial.
引用
收藏
页码:2336 / 2348
页数:13
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