Journal: Journal of Virology
Article Title: Nanoparticle vaccine based on the pre-fusion F glycoprotein of respiratory syncytial virus elicits robust protective immune responses
doi: 10.1128/jvi.00903-25
Figure Lengend Snippet: Challenge of SC9-10-NPM in cotton rats experiment #2. Male SPF-grade cotton rats ( n = 6 per group) were immunized on day 0 and day 21 intramuscularly with 3 µg, 15 µg, 30 µg, or 60 µg of SC-9-10-NPM formulated either without adjuvant or in MF59-bio. The PBS control, healthy animal control, and the group receiving inactivated RSV formulated in aluminum hydroxide were included. Serum was collected on day 41 to measure neutralizing antibodies against RSV A2 ( A ) and RSV B18537 ( B ). RSV A2 (1.0 × 10 6 PFU/animal) was challenged on day 42 via the intranasal route. Animals were sacrificed on day 46, and lung and turbinate bones were collected to measure viral loads ( C and D ). Pathology was measured and scored for individual lung tissues (vs PBS) ( E ), and PreF/PostF IgG ratio was also calculated ( F ). For ( A, B, C, D, and F ), GMT ± 95% CI is shown. Kruskal–Wallis test with Dunn’s multiple comparison test was performed, ns = not significant, * P < 0.05, ** P < 0.01, *** P < 0.001, **** P < 0.0001. For ( E ), mean ± SD is shown. Ordinary one-way ANOVA was performed to compare each group with PBS control.
Article Snippet: RSV strain A2 (ATCC) and RSV strain B18537 (ATCC) were produced in HEp-2 cells.
Techniques: Adjuvant, Control, Comparison