Abstract
Virus-like particles (VLPs) displaying antigen have been increasingly recognized as a potential vaccine in the livestock industry. In this study, Neospora caninum surface protein related sequence (NcSRS)2 was displayed on the surface of Rous sarcoma virus group-antigen protein (RSV-gag) VLPs. Two types of Bombyx mori nucleopolyhedrovirus (BmNPV) bacmids, encoding RSV-gag and NcSRS2 genes, were co-injected into silkworm larvae to produce VLPs-NcSRS2. At 7 days post-injection, VLPs-NcSRS2 were collected from hemolymph and purified. The antigenicity of the purified protein was confirmed by enzyme-linked immunosorbent assay (ELISA) using neosporosis-positive bovine serum. ELISA revealed that ~0.16. μg rNcSRS2 was displayed per 1. μg VLPs-NcSRS2. To develop an antibody specific for VLPs-NcSRS2, purified VLPs-NcSRS2 were used to immunize mice in a three-dose regimen without adjuvant and the production of antibodies was confirmed in serum samples. By using a silkworm expression system, we demonstrated the display, expression and immunization of neosporosis-targeting membrane proteins, which are vaccine candidates for neosporosis.
| Original language | English |
|---|---|
| Pages (from-to) | 69-75 |
| Number of pages | 7 |
| Journal | Journal of Biotechnology |
| Volume | 165 |
| Issue number | 1 |
| DOIs | |
| State | Published - 10 May 2013 |
| Externally published | Yes |
UN SDGs
This output contributes to the following UN Sustainable Development Goals (SDGs)
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SDG 3 Good Health and Well-being
Keywords
- Display technology
- Neospora caninum surface protein related sequence 2
- Neosporosis
- Silkworm expression system
- Virus-like particle
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