ArticleMicrobiology spectrum2026
A lipid nanoparticle-based mRNA vaccine elicits immunity against porcine circovirus type 2 in mice.
Article in Microbiology spectrum, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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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.
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10 authors.
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Abstract
Porcine circovirus type 2 (PCV2), the primary etiological agent of porcine circovirus-associated diseases (PCVADs), continues to cause substantial economic losses worldwide. Although commercially available vaccines have been widely deployed, they often fail to induce sufficient cellular immunity, which necessitates the development of improved vaccination strategies. This study reports the design and evaluation of a messenger RNA (mRNA)-based vaccine candidate targeting PCV2. The vaccine encodes the full-length capsid (Cap) protein, the principal target for neutralizing antibodies. For enhanced delivery and immunogenicity, the mRNA was encapsulated in lipid nanoparticles (LNP). Expression of the PCV2 Cap protein was confirmed in HEK-293T cells following transfection with the mRNA-LNP construct. In a mouse model, this vaccine elicited high titers of PCV2-specific IgG and potent virus-neutralizing antibodies, compared to a recombinant Cap subunit vaccine. Furthermore, the vaccine induced a robust Th1-polarized cellular immune response, marked by significant proliferation of antigen-specific CD8
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