Fig. 3.
Shear stress inhibits the gene expression of ICAM-1, VCAM-1, and E-selectin in ECs induced by coculture with SMCs.
ECs cultured alone (EC/φ) or cocultured with identical ECs (EC/EC) or SMCs (EC/SMC) were maintained in a static condition or exposed to a shear stress of 12 dyne/cm2 for 6 hours and their mRNA levels were determined by RT-PCR analysis, as described in “Materials and methods.” Amplification of cDNA was performed in parallel samples using human GAPDH primers. Data are presented for expression of ICAM-1 (A), VCAM-1 (B), and E-selectin (C) as a percentage change in band density normalized to GAPDH samples (ie, differences from densities in static control ECs cultured alone [Control EC/φ]), and are shown as mean ± SEM from 4 independent experiments. *P < .05 vs control EC/φ.#P < .05 vs control EC/SMC.