Figure 2.

Expression levels of PD1, TIM3, and TIGIT on blood T leukocytes. PBMCs from dsDNA⁺ systemic lupus erythematosus (SLE) patients (n = 23), dsDNA⁻SLE patients (n = 17), and control subjects (n = 22) were harvested and stained with appropriate flow antibodies, and the expressions of PD-1, TIM-3, and TIGIT on CD3⁺ T cells were detected by flow cytometry. The flow figures and pooled data for PD-1⁺ CD4⁺ T cells (a), PD-1⁺ CD8⁺ T cells (b), TIM-3⁺CD4⁺ T cells (c), TIM-3⁺ CD8⁺ T cells (d), TIGIT⁺ CD4⁺ T cells (e), and TIGIT⁺ CD8⁺ T cells (f) are shown. Each dot in the statistical graphs represents an individual subject. ^∗ P < 0.05, ^∗∗ P < 0.01, ^∗∗∗ P < 0.001, NS: no statistical significance.