JOURNAL ARTICLE

[Construction of recombinant adenovirus vector carrying the mouse caveolin-1 in gene]

Lin Yang, Yong-Hong He, Yong-Dai Shen, Lei Liu, Wei Tang, Xiao-Hui Zheng, Wei-Dong Tian
Sichuan da Xue Xue Bao. Yi Xue Ban, Journal of Sichuan University. Medical Science Edition 2008, 39 (2): 294-7
18630707

OBJECTIVE: To construct recombinant adenovirus carrying the mouse dentin caveolin-1 gene using the recombinant adenoviral vector system AdEasy.

METHODS: The cDNA fragment of caveolin-1 was derived from pTRE2-caveolin-1 by restriction enzyme digestion and subcloned into shuttle plasmid pAdtrack-CMV. The resulting plasmid pAdtrack-CMV-caveolin-1, after linearized by digesting with restriction endonuclease Pme I, was transformed into E. coli 1 BJ5183 which had been transformed by adenoviral backbone plasmid pAdEasy-1. The recombinant plasmid pAd-caveolin-1 was screened by kanamycin LB plate and then identified by restriction enzyme digestion. The linearized adenovirus plasmid pAd-caveolin-1 was packaged in 293 cells, then the recombinant adenovirus Ad-caveolin-1 was harvested. The expression of green fluorescence protein was observed under fluorescent microscope. With further amplification and purification, the titer of recombinant adenovirus was determined.

RESULTS: The recombinant adenovirus was identified by restriction enzyme digestion analysis and gene sequencing. Cytopathic effect and the expression of GFP were observed in the infected 293 cells. The sequence of caveolin-1 gene insert was the same as that published in the GenBank. The titer of the recombinant adenovirus was 2 x 10(9) pfu/mL.

CONCLUSION: The mouse caveolin-1 recombinant adenovirus was constructed successfully by using AdEasy adenovirus system. Cell transfection and expression of exogenous gene can be detected directly by observing the expression of GFP. These results provide the basis for the further study on the role of caveolin-1 gene in other scopes.

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