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A trimeric NTD and RBD SARS-CoV-2 subunit vaccine induced protective immunity in CAG-hACE2 transgenic mice and rhesus macaques
Jiaping Yu; Wenrong Yao; Yingsong Hu; Shuang Wu; Jiao Li; Hongjun Zhou; Kunxue Hong; Jianping Chen; Longding Liu; Ke Lan; Feng-Cai Zhu; Yong Liu.
Afiliación
  • Jiaping Yu; Jiangsu Rec-biotechnology Co. Ltd, Taizhou 225300, China
  • Wenrong Yao; Jiangsu Rec-biotechnology Co. Ltd, Taizhou 225300, China
  • Yingsong Hu; Jiangsu Rec-biotechnology Co. Ltd, Taizhou 225300, China
  • Shuang Wu; Jiangsu Rec-biotechnology Co. Ltd, Taizhou 225300, China
  • Jiao Li; Jiangsu Rec-biotechnology Co. Ltd, Taizhou 225300, China
  • Hongjun Zhou; Jiangsu Rec-biotechnology Co. Ltd, Taizhou 225300, China
  • Kunxue Hong; Jiangsu Rec-biotechnology Co. Ltd, Taizhou 225300, China
  • Jianping Chen; Jiangsu Rec-biotechnology Co. Ltd, Taizhou 225300, China
  • Longding Liu; Institute of Medical Biology, Chinese Academy of Medical Sciences, Kunming 650118, China
  • Ke Lan; College of Life Science, Wuhan University, Wuchang 430072, China
  • Feng-Cai Zhu; Jiangsu Provincial Center for Disease Control and Prevention, Nanjing 210009, China
  • Yong Liu; Jiangsu Rec-biotechnology Co. Ltd, Taizhou 225300, China
Preprint en En | PREPRINT-BIORXIV | ID: ppbiorxiv-467182
ABSTRACT
The coronavirus disease 2019 (COVID-19) pandemic caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has led to significant public health, economic and social problems. Development of effective vaccines is still a priority to contain the virus and end the global pandemic. In this study, we reported that ReCOV, a recombinant trimeric NTD and RBD two-component SARS-CoV-2 subunit vaccine adjuvanted with BFA03 (an AS03-like squalene adjuvant), induced high levels of neutralizing antibodies against SARS-CoV-2 and the circulating variants in mice, rabbits and rhesus macaques. Notably, two-dose immunizations of ReCOV provided complete protection against challenge with SARS-CoV-2 in hACE2 transgenic mice and rhesus macaques, without observable antibody-dependent enhancement of infection. These results support further clinical development of ReCOV and the vaccine is currently being evaluated in a phase I clinical trial in New Zealand (NCT04818801).
Licencia
cc_by_nc_nd
Texto completo: 1 Colección: 09-preprints Base de datos: PREPRINT-BIORXIV Tipo de estudio: Experimental_studies / Prognostic_studies / Rct Idioma: En Año: 2021 Tipo del documento: Preprint
Texto completo: 1 Colección: 09-preprints Base de datos: PREPRINT-BIORXIV Tipo de estudio: Experimental_studies / Prognostic_studies / Rct Idioma: En Año: 2021 Tipo del documento: Preprint