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Virology Journal 2015-May

A transgenic ginseng vaccine for bovine viral diarrhea.

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Yugang Gao
Xueliang Zhao
Chao Sun
Pu Zang
He Yang
Ran Li
Lianxue Zhang

Keywords

Abstract

BACKGROUND

Bovine viral diarrhea virus (BVDV) infections are endemic in cattle populations worldwide and cause major economic losses. Thus, an effective vaccine is needed against the transmission of BVDV. The glycoprotein E(rns) is one of the envelope proteins of this virus and shows BVDV-related immunogenicity. Here, we report the use of Panax ginseng as an alternative production platform for the expression of glycoprotein E(rns) via Agrobacterium-mediated transformation.

RESULTS

Polymerase chain reaction (PCR) and reverse transcription (RT)-PCR analyses showed that pBI121-E(rns) was stably integrated into the chromosome of transformants. ELISA assay and Western blot analysis confirmed the antigenicity of plant-derived E(rns) glycoprotein. Immunogenicity was evaluated subcutaneously in deer using a soluble protein extract of dried transgenic ginseng hairy roots. Specific humoral and cell-mediated immune responses against BVDV were detected following immunization.

CONCLUSIONS

These results demonstrated that the E(rns) glycoprotein could be expressed in ginseng hairy roots and that plant-derived glycoprotein E(rns) retained its antigenicity and immunogenicity.

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