Construction of a recombinant vaccinia virus expressing babesia gibsoni thrombospondin-related anonymous protein and evaluation of its immunogenicity in mice

C. Nakamura, M. M. Liu, Y. K. Goo, G. H. Zhang, H. L. Jia, A. Kumagai, H. S. Zhang, J. L. Zhou, Y. Nishikawa, X. N. Xuan

Research output: Contribution to journalArticlepeer-review

Abstract

Previously, we have identified a gene encoding thrombospondin-related anonymous protein of Babesia gibsoni (BgTRAP), and have shown that the antisera raised against recombinant BgTRAP expressed in Escherichia coli inhibited the growth of parasites. In the present study, a recombinant vaccinia virus expressing the BgTRAP (VV/BgTRAP) was constructed. A specific band with a molecular mass of 80 kDa, which is similar to that of native BgTRAP on the merozoites of B. gibsoni, was detected in the supernatant of VV/ BgTRAP-infected RK13 cells. Mice inoculated with VV/BgTRAP produced a specific antiBgTRAP response. The antiserum against VV/BgTRAP showed reactivity against the native BgTRAP on parasites. These results indicated that the recombinant vaccinia virus expressing BgTRAP might be a vaccine candidate against canine B. gibsoni infection.

Original languageEnglish
Pages (from-to)1029-1037
Number of pages9
JournalTropical Biomedicine
Volume37
Issue number4
DOIs
StatePublished - 2020

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