WT cells were incubated with DMSO or EGFR inhibitor AG1478 (1–100 μm) for 30 min prior to treatment with MPs (Approx 40,000 MPs/mL) for time points indicated (0, 0.5, 1, 2, 24 hrs). Cells were then harvested, separated by SDS-PAGE and blotted for the indicated proteins. Inhibition of EGFR with AG1478 blocked phosphorylation of p65 (A) and inhibited upregulation of ICAM-1 in a concentration dependent manner (B). (Avg ± SEM Two-way ANOVA and bonferroni post-hoc analysis for p65 and dunnetts post-hoc test for ICAM-1 A. DMSO: n = 6 AG1478: n = 5 # denotes comparison with DMSO t = 0, #p<0.05, ####p<0.0001, * denotes comparison between DMSO and AG1478 treated cells, *p<0.05, $ denotes comparison with AG1478 at t = 0, $p<0.05. B. ICAM-1 expression: 1% FBS and MP n = 9, AG1478 n = 4 for each concentration *p<0.05, ** p<0.01, ***p<0.001)