[Adenovirus-mediated killing of hepatocellular carcinoma HepG2 cells by heterogeneous fusion gene NT4p53(N15)Ant].
OBJECTIVE To construct a recombinant adenovirus Ad.NT4p53(N15)Ant and explore its cytotoxic effect against hepatocellular carcinoma HepG2 cells in vitro.


METHODS
The recombinant adenovirus containing the fusion gene of neurotrophin 4 (NT4)signal peptide, N-terminal residues (12-26) of p53 and 17 amino acid Drosophila homeobox protein Antennapedia (Ant) was constructed by gene cloning protocol. The effect of this fusion gene on HepG2 cells was evaluated by MTT assay, PI staining and flow cytometry.


RESULTS
The fusion gene Ad.NT4p53(N15)Ant was successfully constructed, as verified by restriction endonuclease digestion and PCR. Ad.NT4p53(N15)Ant could strongly suppress the growth of HepG2 cells (with a growth inhibition rate of 63.3% 48 h after infection) without affecting NIH-3T3 cells. Flow cytometry showed that Ad.NT4p53(N15)Ant could induce obvious apoptosis of HepG2 cells.


CONCLUSIONS
The recombinant adenovirus containing NT4p53(N15)Ant fusion gene can inhibit the growth the of HepG2 cells in vitro partially by inducing cell apoptosis.
Department of Anatomy and Histology and Embryology, Center for Reproductive Medicine, Medical College of Xi'an Jiaotong University, Xi'an 710061, China.
Yue-ping
YP
Li
Shu-dong
SD
Qiu
Li-ping
LP
Song
Quan-ying
QY
Wang
Guang-xiao
GX
Yang
D000256:Adenoviridae / Q000235:genetics* / Q000502:physiology; D000818:Animals; D017209:Apoptosis / Q000235:genetics*; D006528:Carcinoma, Hepatocellular / Q000235:genetics / Q000473:pathology*; D004274:DNA, Recombinant / Q000235:genetics; D005818:Genetic Engineering / Q000379:methods*; D056945:Hep G2 Cells; D006801:Humans; D008113:Liver Neoplasms / Q000235:genetics / Q000473:pathology*; D051379:Mice; D041681:NIH 3T3 Cells; D010957:Plasmids / Q000235:genetics; D011993:Recombinant Fusion Proteins / Q000235:genetics*; D016159:Tumor Suppressor Protein p53 / Q000235:genetics*; D019562:Viral Load
D004274:DNA, Recombinant; D011993:Recombinant Fusion Proteins; D016159:Tumor Suppressor Protein p53