Fig. 1.
AM-251 and SR144528 inhibit 7-ketocholesterol induced apoptosis. Raw 264.7 macrophages were pretreated for 1 h with AM-251 or SR144528, prior to treatment with 7KC (10 μg/ml) as indicated. After 16 h, apoptosis was evaluated by (A) caspase-3 activity assay and (B) APOPercentage assay. (C) Caspase-3 activity induced in Raw 264.7 macrophages after a 6h treatment with staurosporine (1 μM) in the absence and presence of AM-251 or SR144528 as indicated. (D) Cell viability of Raw 264.7 macrophages incubated for 24 h in medium supplemented with AM-251 or SR144528, as indicated, was determined by a modified MTT assay and presented as the percentage ± SD of the mean of the control cells treated with vehicle only. * p<0.05