JOURNAL ARTICLE

[Adenovirus mediated expression of recombinant human single chain interleukin-27(rhscIL-27) fusion gene in hepatoma cells]

Xiao-gang Cheng, Ya-qing Zhang, Wan Ye, Qiang Zou, Wei Chen, Hong Jin, Yan Xu, Shao-lan Zhang
Xi Bao Yu Fen Zi Mian Yi Xue za Zhi, Chinese Journal of Cellular and Molecular Immunology 2010, 26 (6): 518-20
20487639

AIM: To explore the adenovirus mediated expression of recombinant human single chain interleukin-27(rhscIL-27) fusion gene in hepatoma cells.

METHODS: The rhscIL-27 fusion gene was subcloned into the shuttle plasmid pAdTrack-CMV and then clone the homologous recombinant adenovirus genomic plasmid pAdEasy in bacteria. The identified recombinant plasmid AdIL-27 was tranfected into 293 cells, and then the adenovirus did the package and amplification. The HepG2 cells were infected with AdIL-27 and the target gene expression was determined by RT-PCR and ELISA. The biological activity of rhscIL-27 was detected by IFN-gamma inducing assay.

RESULTS: Restriction endonuclease and gene sequencing confirmed that the recombinant adenovirus vector of rhscIL-27 fusion gene was successfully constructed. The expression of rhscIL-27 fusion gene was observed at 48 h after the transfection of the HepG2 cells with AdIL-27. The IFN-gamma inducing assay showed that the rhscIL-27 protein has the ability inducing IFN-gamma secretion.

CONCLUSION: By using adenovirus expression system, rhscIL-27 fusion gene with biological activity is expressed successfully in hepatoma cells. This experiment laid a foundation for gene therapy of hepatoma with IL-27.

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