Vol 52(2018) N 2 p. 269-271; DOI 10.1134/S0026893318020164
E.S. Starodubova*, Y.V. Kuzmenko, E.O. Pankova, A.A. Latanova, O.V. Preobrazhenskaya, V.L. Karpov
Rabies Virus Glycoprotein with a Consensus Amino Acid Sequence and a Lysosome Targeting Signal Causes Effective Production of Antibodies in DNA-Immunized MiceEngelhardt Institute of Molecular Biology, Russian Academy of Sciences, Moscow, 119991 Russia
Received - 2016-12-28; Accepted - 2017-05-15
Safe and effective anti-rabies vaccines are intensely sought worldwide. DNA vaccines have already shown their efficacy and safety and have occupied a special place in the field. Two prototype anti-rabies DNA vaccines were compared for the potential to induce virus-specific antibody production. One vector contained a codon-optimized gene with a territory-adapted consensus sequence of the rabies virus glycoprotein. The other one expressed the same glycoprotein in fusion with a c-CD63 lysosome targeting motif at the C terminus. ELISA of serum samples from immunized mice showed that the c-CD63 variant induced more efficient antibody production and shifted the IgG2a/IgG1 ratio towards the Th2-type immune response. The results gave grounds to believe that the approach successfully applied to the rabies glycoprotein may help to develop new-generation anti-rabies vaccines.
rabies virus, glycoprotein, DNA vaccine, CD63, lysosome