Figure 4
From: Increased levels of soluble interleukin-6 receptor and CCL3 in COPD sputum
CCR1 and CCR5 expression of sputum inflammatory cells. Representative images of (A) CCR1 and (B) CCR5 expression on sputum inflammatory cells. Immunocytochemical labeling on sputum inflammatory cells from COPD patients (n = 3). CCR1 and CCR5 were detected using 3,3′-diaminobenzidine (DAB) substrate (brown). Arrows indicate CCR1 (A) and CCR5 (B) immunoreactive cells. (C) Negative control slide.