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Article Abstract
Malaria remains a global health challenge, necessitating the development of effective vaccines. The RTS,S vaccination prevents (Pf) malaria but is ineffective against (Pv) disease. Herein, we evaluated the murine immunogenicity of a recombinant PvCSP incorporating prevalent polymorphisms, adjuvanted with Alhydrogel or Poly I:C. Both formulations induced prolonged IgG responses, with IgG1 dominance by the Alhydrogel group and high titers of all IgG isotypes by the Poly I:C counterpart. Poly I:C-adjuvanted vaccination increased splenic plasma cells, terminally-differentiated memory cells (MBCs), and precursors relative to the Alhydrogel-combined immunization. Splenic B-cells from Poly I:C-vaccinated mice revealed an antibody-secreting cell- and MBC-differentiating gene expression profile. Biological processes such as antibody folding and secretion were highlighted by the Poly I:C-adjuvanted vaccination. These findings underscore the potential of Poly I:C to strengthen immune responses against Pv malaria.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11033515 | PMC |
| http://dx.doi.org/10.3389/fimmu.2024.1331474 | DOI Listing |
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