Construction of an Recombinant Adenovirus Vector Expressing Mouse Interleukin-10

Objective To construct the recombinant adenovirus vector expressing mouse interleukin-10 and provide the basis for following experiments in vivo and in vitro.Methods The mouse interleukin-10 DNA which was extracted from pORF5-mIL-10 plasmid containing mIL-10 was successfully amplified by using PCR and then cloned into adeovirus vector pSGCMV.Recombinant adeovirus plasmid pSGCMV-mIL-10 was co-transfected with the typeⅤadeovirus plasmid pBGHE3 into 293 packaging cells by Lipofectamine 2000,and the replication-deficient recombinant adenovirus Ad5-mIL-10 was generated efficiently by homologous recombination.The Ad5-mIL-10 recombinant adenovirus was dulpicated efficiently in 293 cells and purified by CsCL density centrifugation them the titer was measured.Results The mIL-10 cDNA was confirmed by DNA sequencing.The titer was 2.5×10~(10)pfu/ml.Conclusion The adenovirus vector of Ad5-mIL-10 is successfully established,which provides the basis for determining the immunologic role of IL-10 in clinical transplantation and gene therapy.