Research progress on the changes of renal drug transporters in chronic kidney disease
As a progressive condition characterized by a gradual loss of kidney structure and function,chronic kidney disease(CKD)generally lasts for more than 3 months.It presents as a syndrome with various clinical manifestations of proteinuria,edema,hypertension and renal impairment.Play a crucial role in kidney,drug transporters are involved in drug absorption,distri-bution,metabolism and excretion.These drug transporters are considered key factors in determining drug accumulation within cells.CKD may result in abnormal expression and functional impairment of renal drug transporters,thereby affecting the clearance and toxicity of drugs and their metabolites.This review focused upon some common renal drug transporters of solute carrier trans-porter(SLC)family and ATP-binding cassette transporter(ABC)and discussed the latest researches on their alterations under CKD conditions.It highlighted a down-regulation of such transporters as P-glycoprotein(P-gp),breast cancer resistance protein(BCRP)and organic anion transporter 1(OAT1)in kidney,as well as an up-regulation of such transporters as multidrug resis-tance protein 2(MRP2),organic anion-transporting polypeptide 1A4(OATP1A4)and organic anion-transporting polypeptide 1A5(OATP1A5).Further mechanistic elucidations of underlying changes in renal drug transporters in CKD,as well as regula-tory status of drug transporters in other organs under CKD conditions,is required for providing theoretical and practical rationales for formulating new strategies for treating CKD and promoting rational drug use in clinical practices.
chronic kidney diseaserenal drug transporterssolute carrier transporterATP-binding cassette transporterexpression/functional changes