Figure 3From: Regulation of CCL2 and CCL3 expression in human brain endothelial cells by cytokines and lipopolysaccharideIntracellular localization of CCL3 in HBMEC by immunogold silver staining. (A) In untreated cultures, cytoplasmic staining is faint indicating minimal constitutive expression. Nuclei are counterstained with Giemsa. (B)-(D) The density of the granular black cytoplasmic deposits is increased in cultures treated with (B) TNF-α (100 U/ml)+ IFN-γ (200 U/ml) for 72 hrs, (C) IL-1β (10 U/ml) for 72 hrs and (D) LPS (5 μg/ml) for 48 hrs. (E) Control cultures incubated with secondary antibody only show no staining. Scale bars = 50 μm.Back to article page