Fig. 6

HDL suppression of Aβ-induced inflammation requires SR-BI. hCMEC/D3 were pre-treated for 1 h with a-c SR-BI or d-f CD36 blocking antibodies or g-i BLT1 followed by 100 μg/mL HDL for 2 h. Cells were then stimulated with 0.1 μM monomeric a,d,g Aβ40 or b,e,h Aβ42 or (c,f,i) 1 ng/mL of TNF-α for 3 h before evaluating PBMC adherence. j hCMEC/D3 were pre-treated for 1 h with SR-BI blocking antibody followed by HDL (1 mg/mL) for 2 h before stimulating with 1 mM of fluorescently labelled Aβ40 or Aβ42 monomers. Scale bar represents 10 μm. Graphs represent means ± SD of adhered PBMC relative to vehicle treated cells from at least 4 independent trials. *p < 0.05, **p < 0.01, ***p < 0.001 * p < 0.05, **p < 0.01, ***p < 0.001 versus vehicle, § p < 0.05 versus Aβ or TNF-α.