Objective To construct lentiviral expression vector hsa-miR-150 and determine the expression of miR-150 in infected hepatocellular carcinoma cell line Hep3B.Methods The hsa-miR-150 gene fragment was synthesized chemically and cloned into lentiviral vector pGIPZ.The constructed recombinant plasmid pGIPZ-hsa-miR-150 was transfected to packaging cell line 293T,and the packaged virus was determined for titer.Recombinant lentivirus particles were harvested and concentrated,then stably transfected to Hep3B cells ...