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Tuning the immune response: sulfated archaeal glycolipid archaeosomes as an effective vaccine adjuvant for induction of humoral and cell-mediated immunity towards the SARS-CoV-2 Omicron variant of concern

Frontiers in Immunology. 2023-04; 
Tyler M Renner, Bassel Akache, Matthew Stuible, Nazanin Rohani, Yuneivy Cepero-Donates, Lise Deschatelets, Renu Dudani, Blair A Harrison, Jason Baardsnes, Izel Koyuturk, Jennifer J Hill, Usha D Hemraz, Sophie Régnier, Anne E G Lenferink, Yves Durocher, Michael J McCluskie
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摘要

Liposomes composed of sulfated lactosyl archaeol (SLA) have been shown to be a safe and effective vaccine adjuvant with a multitude of antigens in preclinical studies. In particular, SLA-adjuvanted SARS-CoV-2 subunit vaccines based on trimeric spike protein antigens were shown to be immunogenic and efficacious in mice and hamsters. With the continued emergence of SARS-CoV-2 variants, we sought to evaluate next-generation vaccine formulations with an updated antigenic identity. This was of particular interest for the widespread Omicron variant, given the abundance of mutations and structural changes observed within its spike protein compared to other variants. An updated version of our resistin-trimerized SmT1 c... More

关键词

AddaS03, SARS-CoV-2, adjuvant, archaeosome, omicron, spike subunit vaccine, sulfated archaeal glycolipid (SLA), variants of concern (VOC)