Clinical Significance of Negative Costimulatory Molecule PD-1/PD-L1 on Peripheral Blood Regulatory T Cell Levels among Patients with Pulmonary Tuberculosis

Figure 4

Correlation between PD-1/PD-L1 expression and proportions of peripheral blood CD4⁺CD25⁺CD127^low Tregs among patients with active pulmonary tuberculosis. (a) Correlation between PD-1 and PD-L1 expression on peripheral blood CD4⁺CD25⁺CD127^low Tregs among patients with active pulmonary tuberculosis. (b) The association of PD-1 expression with the proportion of peripheral blood CD4⁺CD25⁺CD127^low Tregs among patients with active pulmonary tuberculosis. (c) The association of PD-L1 expression with the proportion of peripheral blood CD4⁺CD25⁺CD127^low Tregs among patients with active pulmonary tuberculosis.

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