ArticleNature communications2025
Design and nonviral delivery of live attenuated vaccine to prevent chronic hepatitis C virus-like infection.
Article in Nature communications, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
2 citing papers in PubMed.
- Discovery of 5' NAD capped viral RNAs reveals evolutionary divergent 5' metabolite capping across hepaciviruses.Nature communications · 2026Article
- Hepatitis C virus infection dynamics, treatment, and lipid nanoparticle-mediated infection in humanized liver chimeric mouse models.Science advances · 2026Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
14 authors.
Funding
Abstract
An effective vaccine for the hepatitis C virus (HCV) remains an unmet medical need. There is no animal model for assessing HCV vaccines; however, rodent hepacivirus (RHV) infection in laboratory rats recapitulates the lifelong chronic hepatotropic infection and immune evasion of HCV. Here, we designed a live-attenuated vaccine (LAV) for RHV and determined its immunogenicity and efficacy for preventing chronic infection. The LAV strains are generated by synonymous mutagenesis to increase the frequencies of naturally suppressed dinucleotides, UpA or CpG, in genomic regions that lack extensive RNA secondary structures. Rats vaccinated using LAV containing infectious virions (LAV-IV), or lipid nanoparticle-encapsulated viral RNA (LNP-vRNA) developed short-term viremia and robust T cell responses. After challenge with RHV-rn1, while all unvaccinated rats developed chronic infection, 75% and 85% of rats vaccinated with LAV-IV and LAV-vRNA cleared the infection. Clearance of RHV-rn1 was associated with expansion of memory T cells, transient rise in serum ALT, and, more importantly, enhanced protection against reinfection. In conclusion, we identified a genomic region of hepacivirus that can be synonymously mutated to attenuate its persistence, and vaccines based on these modified genomes protect against chronic hepacivirus infection, a strategy with an apparent translational path toward HCV immunization.
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Registered trials
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