Fig. 5. Contributions of complement C3 and Fcγ-receptor 3 to prophylactic protection against viral latency.
(A) Survival of naive and HSV-1 0ΔNLS-vaccinated WT, FcγRIII−/−, and C3−/− mice following ocular challenge with 1×104 PFU HSV-1 McKrae per eye (n ≥ 5 mice/group; independent experiments). (B) Quantitative PCR reads of HSV-1 genome copy numbers in the trigeminal ganglia (TG) of surviving WT, FcγRIII−/−, and C3−/− mice at day 30 p.i. (n = 4–7 TG per group; 2 independent experiments). (C) Viral lytic gene expression in corneas from naive and HSV-1 0ΔNLS-vaccinated WT and C3−/− mice 24 hours p.i. (n = 2–3 mice per group; 2 independent experiments). Viral lytic gene expression in the cornea and TG of naive and vaccinated WT and C3−/− mice at day 3 p.i. (n = 4–5 mice per group; 2 independent experiments). Viral lytic gene expression in panels C-E was relative to murine beta actin expression and normalized to tissue from uninfected WT C57BL/6 mice. Viral titers in corneas (F) and TG (G) from WT and C3−/− mice at day 5 p.i. (n = 2–3 mice per group; 2 independent experiments). Data in panels B, F, G were analyzed by one-way ANOVA with Newman-Keuls multiple comparisons tests. Data in panels C-E were analyzed by two-way ANOVA with Tukey’s multiple comparisons tests.