title: Plant expressed EtMIC2 is an effective immunogen in conferring protection against chicken coccidiosis.
abstract: Coccidiosis is an economically important disease affecting poultry industry and remains one of the major problems globally. Developing a cost effective sub-unit vaccine may help mitigate loss in the industry. Here, we report expressing one of the microneme proteins, EtMIC2 from Eimeria tenella in tobacco using Agrobacterium-mediated transient expression. The ability of plant expressed recombinant EtMIC2 in eliciting both humoral and cell-mediated immune responses were measured in the immunized birds. The protective efficacy in the vaccinated birds against a homologous challenge was also evaluated. Birds immunized with plant expressed EtMIC2 showed good sero-conversion, reduced oocyst output and increased weight gain when compared to control birds. Our data indicate that use of plant expressed recombinant EtMIC2 in birds was safe and had the potential in imparting partial protection in chickens against homologous challenge.
authors: Research & Development Centre, Indian Immunologicals Limited, Rakshapuram, Gachibowli, Hyderabad 500032, Andhra Pradesh, India.
authors: K
authors: K
authors: Sathish
authors: R
authors: R
authors: Sriraman
authors: B Mohana
authors: BM
authors: Subramanian
authors: N Hanumantha
authors: NH
authors: Rao
authors: K
authors: K
authors: Balaji
authors: M Lakshmi
authors: ML
authors: Narasu
authors: V A
authors: VA
authors: Srinivasan
mesh_terms: D000818:Animals; D000913:Antibodies, Protozoan / Q000097:blood / Q000276:immunology; D000953:Antigens, Protozoan / Q000235:genetics / Q000276:immunology*; D002645:Chickens / Q000276:immunology; D003001:Cloning, Molecular; D003048:Coccidiosis / Q000276:immunology / Q000517:prevention & control / Q000662:veterinary*; D016786:Eimeria tenella / Q000276:immunology; D007111:Immunity, Cellular; D056724:Immunity, Humoral; D007114:Immunization / Q000662:veterinary; D007371:Interferon-gamma / Q000276:immunology; D033661:Oocysts; D030821:Plants, Genetically Modified / Q000235:genetics / Q000276:immunology*; D011201:Poultry Diseases / Q000276:immunology / Q000517:prevention & control*; D016052:Protozoan Vaccines / Q000276:immunology*; D011994:Recombinant Proteins / Q000235:genetics / Q000276:immunology; D014026:Nicotiana / Q000235:genetics / Q000276:immunology; D022223:Vaccines, Subunit / Q000276:immunology; D015430:Weight Gain
chemical_list: D000913:Antibodies, Protozoan; D000953:Antigens, Protozoan; D016052:Protozoan Vaccines; D011994:Recombinant Proteins; D022223:Vaccines, Subunit; D007371:Interferon-gamma