Published online 19 July 2006
© 2006 The Author(s)
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Methods Online |
A novel and simple method for construction of recombinant adenoviruses
Institute of Biochemistry and Molecular Biology, Hubei University Wuhan 430062, Hubei Province, P. R. China
*To whom correspondence should be addressed. Tel: +86 027 88666349; Fax: +86 027 88666349; Email: malixing{at}hubu.edu.cn
Received January 25, 2006. Revised June 12, 2006. Accepted June 13, 2006.
Recombinant adenoviruses have been widely used for various applications, including protein expression and gene therapy. We herein report a new and simple cloning approach to an efficient and robust construction of recombinant adenoviral genomes based on the mating-assisted genetically integrated cloning (MAGIC) strategy. The production of recombinant adenovirus serotype 5-based vectors was greatly facilitated by the use of the MAGIC procedure and the development of the AdeasyTM adenoviral vector system. The recombinant adenoviral plasmid can be generated by a direct and seamless substitution, which replaces the stuff fragment in a full-length adenoviral genome with the gene of interest in a small plasmid in Escherichia coli. Recombinant adenoviral plasmids can be rapidly constructed in vivo by using the new method, without manipulations of the large adenoviral genome. In contrast to other traditional systems, it reduces the need for multiple in vitro manipulations, such as endonuclease cleavage, ligation and transformation, thus achieving a higher efficiency with negligible background. This strategy has been proven to be suitable for constructing an adenoviral cDNA expression library. In summary, the new method is highly efficient, technically less demanding and less labor-intensive for constructing recombinant adenoviruses, which will be beneficial for functional genomic and proteomic researches in mammalian cells.