A broadly applicable protein-polymer adjuvant system for antiviral vaccines

Autor: Caiqian Wang, Yuanyuan Geng, Haoran Wang, Zeheng Ren, Qingxiu Hou, An Fang, Qiong Wu, Liqin Wu, Xiujuan Shi, Ming Zhou, Zhen F Fu, Jonathan F Lovell, Honglin Jin, Ling Zhao
Jazyk: angličtina
Rok vydání: 2024
Předmět:
Zdroj: EMBO Molecular Medicine, Vol 16, Iss 6, Pp 1451-1483 (2024)
Druh dokumentu: article
ISSN: 1757-4684
DOI: 10.1038/s44321-024-00076-4
Popis: Abstract Although protein subunit vaccines generally have acceptable safety profiles with precise antigenic content, limited immunogenicity can lead to unsatisfactory humoral and cellular immunity and the need for vaccine adjuvants and delivery system. Herein, we assess a vaccine adjuvant system comprising Quillaja Saponaria-21(QS-21) and cobalt porphyrin polymeric micelles that enabling the display of His-tagged antigen on its surface. The nanoscale micelles promote antigen uptake and dendritic cell activation to induce robust cytotoxic T lymphocyte response and germinal center formation. Using the recombinant protein antigens from influenza A and rabies virus, the micelle adjuvant system elicited robust antiviral responses and protected mice from lethal challenge. In addition, this system could be combined with other antigens to induce high titers of neutralizing antibodies in models of three highly pathogenic viral pathogens: Ebola virus, Marburg virus, and Nipah virus. Collectively, our results demonstrate this polymeric micelle adjuvant system can be used as a potent nanoplatform for developing antiviral vaccine countermeasures that promote humoral and cellular immunity.
Databáze: Directory of Open Access Journals