An HTLV-1 envelope mRNA vaccine is immunogenic and protective in New Zealand rabbits

by | Jan 9, 2024 | Publications

J Virol. 2024 Jan 9:e0162323. doi: 10.1128/jvi.01623-23. Online ahead of print.

ABSTRACT

mRNA vaccine technology has proven to be a viable approach for effectively triggering immune responses that protect against or limit viral infections and disease. In our study, we synthesized a codon optimized human T-cell leukemia virus type 1 (HTLV-1) envelope (Env) mRNA that can be delivered in a lipid nanoparticle (LNP) vaccine approach. The HTLV-1 Env mRNA-LNP produced protective immune responses against viral challenge in a preclinical rabbit model. HTLV-1 is primarily transmitted through direct cell-to-cell contact, and the protection offered by mRNA vaccines in our rabbit model could have significant implications for optimizing the development of other viral vaccine candidates. This is particularly important in addressing the challenge of enhancing protection against infections that rely on cell-to-cell transmission.

PMID:38193692 | DOI:10.1128/jvi.01623-23

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