Figure 4.
Nanoparticle vaccine enhances lymphatic accumulation and uptake by antigen presenting cells. (A) Fluorescent images of vaccine site draining lymph node 6h after subcutaneous injection of vaccine formulated with Cy5-OVAp. (B) Quantification of fluorescence in vaccine site draining lymph node (mean ± SD; n = 5 mice/group; **P < 0.01; one-way ANOVA with Tukey’s multiple comparisons). (C) Percentage of Cy5-OVAp positive cells among immune cell populations in vaccine draining lymph node 6h after injection of vaccine formulated with Cy5-OVAp (mean ± SD; n = 5 mice/group; ***P < 0.001; one-way ANOVA with Tukey’s multiple comparisons). (D) Percentage of Cy5-OVAp positive cells among pDCs and cDCs (cDC1 and cDC2) in the vaccine site draining lymph node 6h after injection of vaccine formulated with Cy5-OVAp (mean ± SD; n = 6–8 mice/group; *P < 0.05, **P < 0.01; unpaired t test).
