Fig. 4

The expression levels of IL-10 and TGF-β in CD4⁺CCR8⁻/CCR8⁺ Tregs and the comparison of their proliferation ability A Representative flow cytometry analysis of IL-10 and TGF-β in CD4⁺CCR8⁻/CCR8⁺ Tregs of OC-PBL group. B Statistical chart of the positive proportion IL-10 (n = 7) and TGF-β (n = 7) in CD4⁺CCR8⁻/CCR8⁺ Tregs of OC-PBL group. C Representative flow cytometry analysis of IL-10, TGF-β and Ki-67 in CD4⁺CCR8⁻/CCR8⁺ Tregs of OC-TIL group. D Statistical chart of the positive proportion of IL-10 (n = 6), TGF-β (n = 7) and Ki-67 (n = 9) in CD4⁺CCR8⁻/CCR8⁺ Tregs of OC-TIL group. Data are presented as means ± SD and analysed with the with Student’s t-test. (*P < 0.05; **P < 0.01)