Fig. 2
From: Downregulation of the PD-1/PD-Ls pathway in peripheral cells correlates with asbestosis severity
Analysis of PD-1 expression on CD4+ T or CD8+ T cells in PB. Representative flow cytometry analysis of the expression of PD-1 on CD4+ (a) or CD8+ (b) T cells. The percentages of PD-1+CD4+ (c) or PD-1+CD8+ (d) T cells in healthy controls and patients with asbestosis or silicosis (c, d)