Fig. 3

Heightened neutrophil infiltration in COPD–MS patients. A Bar graph shows the differential infiltration of 28 immune cells in two groups of patients. B Heatmap illustrates the correlation between 28 immune cells. C Heatmap demonstrates the correlation of 28 immune cells with immune checkpoint genes. *p < 0.05, **p < 0.01, ***p < 0.001