Accumulation kinetics of monocytes on (A) 4 h IL-1β–stimulated HUVEC monolayers (n = 10), (B) 4 h IL-1β–stimulated HUVEC monolayers in presence of Dreg-56 (n = 5) and (C) L-ELAM monolayers (n = 2). For all studies, 10⁶/mL monocytes were perfused over the monolayers at a wall shear stress of 2 dynes/cm². Accumulation of monocytes in all three cases were fitted to a linear equation where Y = accumulated monocytes (cells/mm2 ), X = time (min). The correlation coefficient, R for each case was greater than 0.99.