Surface expression of adhesion molecules on resting HUVEC (“Control”) and on HUVEC exposed to the supernatant of 8 μg/ml oxLDL-treated mast cells (“S<sub>L1</sub>”), the supernatant of 8 μg/ml oxLDL-treated macrophages (“S<sub>M</sub>”), or a combination of these supernatants (S<sub>M</sub> + S<sub>L1</sub>).
<p>(A) Histogram of the expression of ICAM-1, VCAM-1 and E-selectin on the HUVEC surface; (B) Percentage of HUVEC with positive expression of these adhesion molecules (mean ± SD, n = 3). * <i>p</i> < 0.05, ** <i>p</i> < 0.01, *** <i>p</i> < 0.001. Details about the HUVEC activation groups are given in Figs. <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0123088#pone.0123088.g001" target="_blank">1</a> and <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0123088#pone.0123088.g007" target="_blank">7</a>.</p