Fig. 6

In vitro chemotaxis experiment of CD4⁺CCR8⁻/CCR8⁺ Tregs A Comparative analysis of the difference of chemotactic ability of CD4⁺CCR8⁺ Tregs in the medium containing gradient concentration CCL1/CCL18. B Comparative analysis of the difference of response chemotaxis between CD4⁺CCR8⁻ Tregs and CD4⁺CCR8⁺ Tregs. Each experiment was performed triplicated. Data are presented as means ± SD and analysed with the non-parametric Mann–Whitney U test. (*P < 0.05)