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

Figure 1

Flow cytometric analysis of CD4⁺CD25⁺CD127^low Tregs in peripheral blood. Flow cytometry is performed to detect the proportions of CD4⁺CD25⁺CD127^low Tregs in the peripheral blood samples of patients with active pulmonary tuberculosis and healthy adults. (a) Representative flow cytometric plots for detection of CD4⁺CD25⁺CD127^low Tregs expression. CD4⁺, CD25⁺, and CD127^low T lymphocytes were gated. (b) Comparison of proportions of CD4⁺CD25⁺CD127^low Tregs between active pulmonary tuberculosis patients and healthy adults.

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