Carcinogenesis, Teratogenesis & Mutagenesis

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Establishment of a HepG2 cell line with stable PXR silencing by lentivirus-mediated RNA interference

NIU Yong-dong1,2,CHEN Li-ming3,WU Man-peng4,CHENG He1,XU Han1,GAO Fen-fei1,SHI Gang-gang1,*   

  1. Department of Pharmacology, Shantou University Medical College, Shantou 515041
  • Received:2014-02-21 Revised:2014-04-11

Abstract:

OBJECTIVE: To establish a HepG2 cell line with stable PXR silencing effect by a lentiviral vector carrying a short hairpin RNA (sh-RNA). METHODS:Three double-stranded sh-RNA targeting the PXR gene were designed,synthesized and cloned into the psi-sH1 sh-RNA vector. The effective recombinant sh-RNA expression plasmid against PXR,which was selected of HEK293T cells with three double-stranded sh-RNA plasmids,was packaged into HEK293T cells and used to infect HepG2 cells after 200 mmol/L puromycin screening for 2-3 weeks. The expression level of PXR was detected by western blot,the CYP3A4 mRNA levels both in sh-RNA PXR HepG2 stable cells and scramble control HepG2 cells were detected by real-time PCR. RESULTS:A recombinant sh-RNA expression plasmid against PXR gene with effective interference was successfully selected and a HepG2 cell line stably transfected with the sh-RNA PXR was established. CONCLUSION:A HepG2 cell line stably transfected with the sh-RNA PXR was established.

Key words: human pregnane X receptor, hepatocellular carcinoma, lentivirus, RNA interference