LDL

Caco-2 cells grown in transwell inserts were transfected with scrambled siRNA, or siRNA specific for CCK1R, CCK2R, or both CCK1 and CCK2R and then incubated with 0.002 uCi of [³H]cholesterol micelles in the apical compartment and with culture medium alone (Control) or 10 nm [Thr28,Nle31]CCK with or without 50 uM ezetimibe (EZ) in the basolateral compartment. Absorbed [³H]cholesterol was determined by radioactivity counting of the basolateral medium. Values represent the mean ± S.E. (error bars) of 4-5 independent experiments. *, p < 0.05 versus control; †, p < 0.05 versus cells treated with CCK alone; ‡, p < 0.05 versus cells transfected with scrambled siRNA alone; $, p < 0.05 versus cells treated with scrambled siRNA and CCK.

Caco-2 cells grown in transwell inserts were transfected with scrambled siRNA, or siRNA specific for CCK1R, CCK2R, or both CCK1 and CCK2R and then incubated with 0.002 uCi of [³H]cholesterol micelles in the apical compartment and with culture medium alone (Control) or 10 nm [Thr28,Nle31]CCK with or without 50 uM ezetimibe (EZ) in the basolateral compartment. Absorbed [³H]cholesterol was determined by radioactivity counting of the basolateral medium. Values represent the mean ± S.E. (error bars) of 4-5 independent experiments. *, p < 0.05 versus control; †, p < 0.05 versus cells treated with CCK alone; ‡, p < 0.05 versus cells transfected with scrambled siRNA alone; $, p < 0.05 versus cells treated with scrambled siRNA and CCK.