Laboratory Animal and Comparative Medicine ›› 2013, Vol. 33 ›› Issue (4): 249-255.DOI: 10.3969/j.issn.1674-5817.2013.04.001

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Construction of Recombinant Fowl Adenovirus Serotype 1 Exprsessing Exotic Green Fluorescence Protein

ZHOU Jie1, ZHAO Li1,2,3, HU Jian-hua1, GAO Cheng1   

  1. 1. Shanghai Laboratory Animal Research Center, Shanghai 201203, China;
    2. College of Veterinary Medicine,Yangzhou University, Yangzhou 225009, China;
    3. Shanghai Institute of Materia Medica, Chinese Academy of Science, Shanghai 201203, China
  • Received:2012-10-15 Online:2013-08-25 Published:2013-08-25

Abstract: Objective To construct a recombinant fowl adenovirus expressing exotic green fluorescence protein(eGFP). Methods The flanking fragments of non-essential region(nt40 065~nt43 684) in fowl adenovirus genome were cloned into a transfer plasmid as well as eGFP. Through homologous recombination between the transfer plasmid and wild fowl adenovirus in chicken hepatocellular carcinoma cell line(LMH), the non-essential region between the flanking fragments was replaced by the complete eGFP expression cassette. In order to improve the occurrence probability of recombination, the transfection conditions such as logarithmic growth phase of LMH, the ratio of plasmid and lipofectamine, cells seeding density were explored. The optimum transfection condition was determined as follows: Seed 3×105/ml LMH cells into 6 cell culture plate, 36 h later, cells were transfected with 8 μl lipofectamine 2 000 and 3.0 μg plasmid pUC-LR-eGFP. Recombinant virus was screening by plaque purification. Results recombinant adenovirus serotype 1 (rFAdV-1) expressing eGFP was obtained. Conclusion These results provided favorable references for fowl live vaccine development and related fundamental research.

Key words: Recombinant fowl adenovirus serotype 1(rFAdV-1), Chicken hepatocellular carcinoma cell line(LMH), Exotic green fluorescence protein(eGFP)

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