Intramuscular self-amplifying RNA and adenoviral RSV vaccines program distinct systemic and respiratory mucosal immune architectures
Academic source · EMBO Molecular Medicine
Source published:
Site published: 2026-11-03 · Updated: 2026-11-03
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What the paper reports
A mouse study compared LNP-delivered self-amplifying RNA and an Ad5 vaccine encoding the same RSV prefusion F antigen. Intramuscular dosing produced distinct immune patterns: saRNA favored pulmonary mucosal and tissue-resident memory responses, while Ad5 generated stronger systemic responses. The comparison concerns immune architecture, not demonstrated superiority in human protection.
Why this paper is included
Respiratory vaccine development should assess tissue-localized immunity alongside serum responses, rather than selecting platforms solely on systemic antibody measurements.
The interpretation above is analysis, not a conclusion attributed to the original source.
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