Th17 Cell Enhances CD8 T-Cell Cytotoxicity via IL-21 Production in Emphysema Mice

Figure 6

Correlations between (a) the frequency of CD4⁺IL-17⁺Th17 cells in peripheral blood and DI, (b) the frequency of CD4⁺IL-17⁺Th17 cells in peripheral blood and Lm, (c) the frequency of IL-21⁺Th17 cells in peripheral blood and DI, (d) the frequency of IL-21⁺Th17 cells in peripheral blood and Lm, (e) the frequency of CD8⁺IL-21R⁺ T cells in peripheral blood and DI, (f) the frequency of CD8⁺IL-21R⁺ T cells in peripheral blood and Lm, and (g) the frequency of CD8⁺IL-21R⁺ T cells and the frequency of IL-21⁺Th17 cells in peripheral blood. Data were determined by Pearson’s rank correlation coefficients.

(a)

(b)

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(g)