RESUMEN
Objective To investigate the effect of atorvastatin on expression of ABCA1(mRNA,protein) and LXR? mRNA in THP-1 macrophages induced by PMA.Methods Cultured THP-1 cells were induced to differentiate into macrophages by PMA for 48 hours.The macrophages were incubated with atorvastatin in different concentions for 24 or 48 hours.We determined the changes of ABCA1 mRNA,protein and LXR? mRNA by reverse trancriptase polymerase chain reaction(RT-PCR) and immuno-histochemistry.Results The expression level of ABCA1 mRNA(ratio of relative expression 1.21 vs 1.48) and protein as well as LXR? mRNA(0.87 vs1.12) were decreased in THP-1macrophages when cultured with atorvastatin(10 ?mol/L) for 24 h.Conclusion Atorvastatin inhibits the expression of ABCA1 mRNA and protein as well as LXR? mRNA of THP-1macrophages in vitro.