Fig. 6
From: The association between airway eosinophilic inflammation and IL-33 in stable non-atopic COPD
Expression of ST2 and intracellular IL-5 by sputum hemopoietic progenitor cells (HPC) in COPD subjects with sputum eosinophil count ≤3% (n = 10) and > 3% (n = 10). The percentage of sputum HPC expressing ST2, IL-5 and double positive cells for ST2 and IL-5 are presented in sub-figures a, d and g, respectively. Absolute numbers of HPC expressing ST2, IL-5 and double positive cells for ST2 and IL-5 per gram of sputum are presented in sub-figures b, e and h, respectively. Representative example of flow cytometry acquisition of sputum ST2+ (c), IL-5+ (f) and ST2 + IL-5+ (i) HPC. Data are presented as mean ± SEM. *p < 0.05; **p < 0.01; ***p < 0.001