CB1 expression is regulated during the angiogenic process. Expression levels of CB1 were determined by RT-PCR (A) and Western blotting (B) at increasing time points from angiogenic stimulation of quiescent cells. Vertical lines have been inserted to indicate a repositioned gel lane. The histograms report the quantification of the intensity bands expressed as mean ± SD of 3 independent experiments (ANOVA vs control, *P < .05, **P < .01). (C) BrdU incorporation levels expressed as mean ± SD (relative percentage vs control) of 3 independent experiments in triplicates.