Abstract
Hydrophobin-fused domain III of dengue envelope proteins serotypes 1 and 2 were expressed in Rachiplusia nu larvae and purified by aqueous two-phase system. This biotechnological approach of hydrophobin-fused proteins, which allowed obtaining 97.7µg/larva of fusion protein DomIII serotype 1 and 61.4µg/larva of fusion protein DomIII serotype 2, represents an integrated strategy for simple production of recombinant antigens. Purified fusion proteins induced serotype-specific neutralizing antibodies without cross-reaction against other serotypes and arboviruses after mouse immunization. hydrophobin-fused domain III of dengue envelope protein could be a promising strategy for easy and low-cost production of components of a tetravalent sub-unit vaccine against dengue.
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