Research Article

Oxidative Stress Induces HSP90 Upregulation on the Surface of Primary Human Endothelial Cells: Role of the Antioxidant 7,8-Dihydroxy-4-methylcoumarin in Preventing HSP90 Exposure to the Immune System

Figure 4

(a) Dose-dependent effect of H2O2 on cellular HSP90 distribution in HUVEC. (b) Cellular HSP90 distribution in HUVEC pretreated with 7,8-dihydroxy-4-methylcoumarin (7,8-DHMC) or diluent alone as control and then exposed to 600 μM of H2O2 or left untreated. Images obtained by scanning confocal microscopy analysis were collected at 512 × 512 pixels. Green: HSP90 staining; blue: nucleus staining.
(a)
(b)