Figure 1

Expression of lymphatic endothelial cell markers in human COPD lung tissue. In silico analyses of microarray datasets from the LTRC tissue consortium for PROX1 (A) Podoplanin (PDPN, B), and LYVE1 (C) in lung tissue from nonsmoker control, smoker control, GOLD1/2 (mild COPD), and GOLD3/4 (severe COPD) lungs. *P < 0.05, **P < 0.01.