Regulating Effect of Nitrogen Monoxide on Gene Expression of Sodium/Iodide Symporter in Human Thyrocyte / 中国药房

ABSTRACT

OBJECTIVE:To investigate the influence of nitrogen monoxide(NO) donor,sodium nitroprusside(SNP),on mRNA expression of sodium/iodide symporter(NIS) in thyrocyte membrane cultured in vitro in order to interpret molecular mechanism that NO inhibits the uptake of iodide.METHODS:The effect of SNP at different concentrations(0,10-6,10-5,10-4,10-3 mmol?L-1) on mRNA expression of NIS in thyrocyte by using cell culture method and RT-PCR with optical density ratio of NIS/?-actin as index.RESULTS:Optical density ratio of NIS/?-actin in each group decreased in order after treated with SNP(0,10-6,10-5,10-4,10-3 mmol?L-1).NO inhibited mRNA expression of NIS in a dose-dependent manner(P