Abstract：
:Foot-and-mouth disease virus (FMDV) causes a highly contagious disease of cloven-hoofed animals. We have reported (Cubillos et al., 2008) that a synthetic dendrimeric peptide consisting of four copies of a B-cell epitope [VP1(136-154)] linked through thioether bonds to a T-cell epitope [3A(21-35)] of FMDV [B4T(thi)] elicits potent B- and T-cell specific responses and confers solid protection in pigs to type C FMDV challenge. Herein we show that downsized versions of this peptide bearing two copies of a B-cell epitope from a type O isolate and using thioether [B2T(thi)] or maleimide [B2T(mal)] conjugation chemistries for their synthesis elicited in swine similar or higher B and T-cell specific responses than tetravalent B4T(thi). Moreover, while partial protection was observed in animals immunized with B4T(thi) (60%) and B2T(thi) (80%), B2T(mal) conferred full (100%) protection against FMDV challenge, associated to high levels of circulating IgG2 and mucosal IgGA, and entirely prevented virus shedding. Interestingly, B2T(mal) is also the most advantageous option in terms of synthetic practicality. Taken together, the results reported here point out to B2T(mal) as a highly valuable, cost-effective FMDV candidate vaccine.
journal_name
Antiviral Resjournal_title
Antiviral researchauthors
Blanco E,Guerra B,de la Torre BG,Defaus S,Dekker A,Andreu D,Sobrino Fdoi
10.1016/j.antiviral.2016.03.005subject
Has Abstractpub_date
2016-05-01 00:00:00pages
74-80eissn
0166-3542issn
1872-9096pii
S0166-3542(16)30132-2journal_volume
129pub_type
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