Effective synthetic peptide vaccine for foot-and-mouth disease in swine.
We have designed a peptide-based vaccine for foot-and-mouth disease (FMD) effective in swine. The peptide immunogen has a G-H loop domain from the VP1 capsid protein of foot-and-mouth disease virus (FMDV) and a novel promiscuous T helper (Th) site for broad immunogenicity in multiple species. The G-H loop VP1 site was optimised for cross-reactivity to FMDV by the inclusion into the peptide of cyclic constraint and adjoining sequences. The incorporation of consensus residues into the hypervariable positions of the VP1 site provided for broad immunogenicity. The vaccine protected 20 out of 21 immunised pigs from infectious challenge by FMDV O1 Taiwan using peptide doses as low as 12.5 microg, and a mild adjuvant that caused no lesions. A safe chemically-defined product would have considerable advantages for vaccination against FMD.
Wang
Chang Yi
CY
United Biomedical Inc., 25 Davids Drive, Hauppauge, NY 11788, USA. cywang@unitedbiomedical.com
Chang
Tseng Yuan
TY
Walfield
Alan M
AM
Ye
John
J
Shen
Ming
M
Chen
Shih Ping
SP
Li
Ming Chang
MC
Lin
Yeou Liang
YL
Jong
Ming Hwa
MH
Yang
Ping Cheng
PC
Chyr
Nancy
N
Kramer
Ed
E
Brown
Fred
F
D000595:Amino Acid Sequence; D000818:Animals; D036022:Capsid Proteins / Q000737:chemistry / Q000276:immunology*; D003429:Cross Reactions; D005260:Female; D005536:Foot-and-Mouth Disease / Q000517:prevention & control*; D006168:Guinea Pigs; D008297:Male; D008969:Molecular Sequence Data; D010455:Peptides / Q000737:chemistry / Q000276:immunology / Q000592:standards*; D013552:Swine; D014765:Viral Vaccines / Q000276:immunology / Q000592:standards*
D036022:Capsid Proteins; D010455:Peptides; C442501:VP1 protein, Foot-and-mouth disease virus; D014765:Viral Vaccines