Objective:To investigate the effects of E. coli lipopolysaccharide(LPS) stimulus on the synthesis of TLR4 protein and its mRNA expression in human dental pulp cells(HDPCs), and to explore the roles of TLR4 on the activation of HDPCs induced by LPS.

• 目的:探讨大肠杆菌脂多糖(lippolysacchaide,LPS)对体外培养的人牙髓细胞(human dental pulp cells,HDPCs)Toll样受体4(Toll-likereceptor4,TLR4)表达的影响及TLR4在LPS对牙髓细胞激活中的作用。