Plant expressed coccidial antigens as potential vaccine candidates in protecting chicken against coccidiosis

Vaccine
K SathishV A Srinivasan

Abstract

Coccidiosis is a disease caused by intracellular parasites belonging to the genus Eimeria. In the present study, we transiently expressed two coccidial antigens EtMIC1 and EtMIC2 as poly histidine-tagged fusion proteins in tobacco. We have evaluated the protective efficacy of plant expressed EtMIC1 as monovalent and as well as bi-valent formulation where EtMIC1 and EtMIC2 were used in combination. The protective efficacy of these formulations was evaluated using homologous challenge in chickens. We observed better serum antibody response, weight gain and reduced oocyst shedding in birds immunized with EtMIC1 and EtMIC2 as bivalent formulation compared to monovalent formulation. However, IFN-γ response was not significant in birds immunized with EtMIC1 compared to the birds immunized with EtMIC2. Our results indicate the potential use of these antigens as vaccine candidates.

References

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Citations

Nov 19, 2013·Trends in Parasitology·Damer P Blake, Fiona M Tomley
Jul 22, 2016·Plant Biotechnology Journal·Naila Shahid, Henry Daniell
Oct 19, 2016·International Journal of Molecular Sciences·Young Hee JoungHyun-Soon Kim
May 31, 2017·Vaccines·Christopher ConchaCristian Ibáñez

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