1. [Expression of recombinant plasmid pcDNA3.1/P12X3C with multi-genes of foot-and-mouth disease virus in BHK-21 cells].
- Author
-
Guo HC, Liu ZX, Sun SQ, Lu ZJ, Zhou GQ, Qi SY, Jin Y, Liu XT, and Xie QG
- Subjects
- Animals, Cell Line, Cricetinae, Enzyme-Linked Immunosorbent Assay, Fluoroscopy, Genetic Vectors genetics, Models, Genetic, Plasmids genetics, Viral Proteins genetics, Foot-and-Mouth Disease Virus genetics, Viral Proteins metabolism
- Abstract
In order to obtain the gene P12X3C of Foot-and-Mouth Disease Virus (FMDV) that includes full length P1, 2A, 3C and a part of 2B, the site mutation strategy was used. After being digested by Kpn I and Xba I respectively, the gene P12X3C was cloned into the pcDNA3.1 (+) expression vector. The recombinant plasmid was checked by restriction enzyme analysis and nucleic acid sequencing, and then named pcDNA3.1/P12X3C. Further, BHK-21 cells was transfected with pcDNA3.1/P12X3C by using lipoid. The proteins of Foot-and-Mouth Disease Virus, which were expressed in BHK-21 cells, were confirmed by sandwich-ELISA and fluoroscopy. The result shows the gene P12X3C is cloned into eukaryotic expression plasmid, and the recombinant eukaryotic expression plasmid pcDNA3.1/P12X3C could express proteins of Foot-and-Mouth Disease Virus in BHK-21 cells, which have immunocompetence. This study demonstrates that delivery of a recombinant eukaryotic expression plasmid containing P12X3C coding regions results in the assembly of FMDV capsid structures, which will offer experimental base to DNA vaccine of FMDV.
- Published
- 2003