Immunogenicity of recombinant fowl-pox virus co-expressing structural protein precursor P1-2A and proteinase 3C of FMDV
2004
Two recombinant plasmids, pUTA2P1 and pUTAL3CP1, were constructed by inserting structural protein precursor P1-2A and proteinase 3C of foot- and-mouth disease virus (FMDV) into fowl-pox virus (FPV) recombinant vectors pUTA-2 and pUTA-16-LacZ respectively, and two recombinant FPVs (vUTA2P1 and vUTAL3CP1) screened by the RT-PCR, IFA assay and Western blotting assay were obtained successfully. Mice injected respectively with rFPVs were induced high level specific anti-FMDV antibodies, increasing of T subtypes, and higher cytotoxicities of splenocytes than those of control groups. These results indicated that a new method was used to construct a potential candidate vaccine of FMDV.
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