Skip to main content
. 2015 Sep 7;6:439. doi: 10.3389/fimmu.2015.00439

Figure 5.

Figure 5

Persistence of IgG and CD4 T-cell responses induced by 4C-Staph formulations. BALB/c mice were immunized with 4C-Staph, 4C-Staph/MF59 and 4C-Staph/alum (n = 10), and immune responses were determined 0.5, 1, and 4 months after immunization. (A) IgG titers specific to each 4C-Staph component (HlaH35L, EsxAB, FhuD2, and Csa1A) (n = 10–16). (B) Hla-specific neutralization titers. Number of (C) Edu+ proliferating and frequency of (D) cytokine+ CD4 T cells in response to in vitro stimulation with 4C-Staph antigens. (E) Pie charts representing polyfunctional CD4 CD44hi T cells. (F) Frequencies of CD4 T cells expressing one or more cytokines. Graphs show mean ± SD, and are the merge of at least two separate experiments. Data were analyzed using one-way ANOVA and Tukey’s multiple comparison test, p < 0.05, *4C-Staph formulation versus its respective formulation without 4C-Staph; #adjuvanted-4C-Staph versus 4C-Staph alone; $4C-Staph/MF59 versus 4C-Staph/alum; 1 month or 4 months versus 0.5 month time point.