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  • Title: Protection of guinea pigs and swine by a recombinant adenovirus expressing O serotype of foot-and-mouth disease virus whole capsid and 3C protease.
    Author: Lu Z, Bao H, Cao Y, Sun P, Guo J, Li P, Bai X, Chen Y, Xie B, Li D, Liu Z, Xie Q.
    Journal: Vaccine; 2008 Dec 19; 26 Suppl 6():G48-53. PubMed ID: 19178894.
    Abstract:
    Two recombinant adenoviruses were constructed expressing foot-and-mouth disease virus (FMDV) capsid and 3C/3CD proteins in replicative deficient human adenovirus type 5 vector. Guinea pigs vaccinated with 1-3 x 10(8)TCID(50) Ad-P12x3C recombinant adenovirus were completely protected against 10,000GID(50) homologous virulent FMDV challenge 25 days post vaccination (dpv). Ad-P12x3CD vaccinated guinea pigs were only partially protected. Swine were vaccinated once with 1x10(9)TCID(50) Ad-P12x3C hybrid virus and challenged 28 days later. Three of four vaccinated swine were completely protected against 200 pig 50% infectious doses (ID(50)) of homologous FMDV challenge, and vaccinated pigs developed specific cellular and humoral immune responses. The immune effect of Ad-P12x3C in swine further indicated that the recombinant adenovirus was highly efficient in transferring the foreign gene. This approach may thus be a very hopeful tool for developing FMD live virus vector vaccine.
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