A therapeutic hepatitis B mRNA vaccine with strong immunogenicity and persistent virological suppression

NPJ Vaccines. 2024 Feb 3;9(1):22. doi: 10.1038/s41541-024-00813-3.

Abstract

Here we report on the development and comprehensive evaluations of an mRNA vaccine for chronic hepatitis B (CHB) treatment. In two different HBV carrier mouse models generated by viral vector-mediated HBV transfection (pAAV-HBV1.2 and rAAV8-HBV1.3), this vaccine demonstrates sufficient and persistent virological suppression, and robust immunogenicity in terms of induction of strong innate immune activation, high-level virus-specific antibodies, memory B cells and T cells. mRNA platform therefore holds prospects for therapeutic vaccine development to combat CHB.