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. 2019 Jan 4;9:2899. doi: 10.3389/fimmu.2018.02899

Figure 5.

Figure 5

CCR9+ Tfh cells express increased amounts of IL-21 and IL-17. Percentages of cytokine expressing CCR9+ and CCR9, CXCR5+ PD1+ CD4+ T follicular helper (Tfh) cells in the Peyers patches (PP) and mesenteric lymph nodes (MLN) of Il2−/− and WT mice. Interleukin (IL) 17 and 21 were detected ex vivo by intracellualr immunostaining and FACs analyses. IL-21 containing CCR9+ and CCR9 Th cells in the (A) PP and (B) MLN. IL-17 containing CCR9+ and CCR9 Th cells in the (C) PP and (D) MLN. Data are shown as mean ± SD from 3 experiments, where n = 5 female mice of 9–12 weeks of age. Statistical significance was assessed by 2-way ANOVA using Bonferroni's multiple comparisons test.