Biomaterial Database

Natural killer cell frequency and function in pigs selectively bred for high or low antibody and cell-mediated immune response: response to vaccination with modified live transmissible gastroenteritis virus. 1998

C Raymond, and B N Wilkie

Department of Pathobiology, The University of Guelph, Ont., Canada.

Porcine NK cells are small to medium lymphocytes which are lytic for tumours and virally infected cells when co-cultured for long periods ( approximately 16 h). The frequency and function of NK cells were examined in generation 8 of pigs genetically selected for high (H), low (L), and control (C) antibody (Ab) and cell-mediated immune response (CMIR). The NK phenotype was identified using a pan-species NK-specific murine monoclonal antibody (5C6) and both binding and lysis of the NK target, K562. Vaccination with modified live transmissible gastroenteritis virus (TGEV) had no effect on blood leucocyte NK cell frequency. In interactions with K562 targets, NK cells of H and C pigs responded similarly in frequency of conjugate formation and lytic activity, while L pigs had very little or no response. Therefore, in pigs selected for high Ab and CMIR, there was no correlated enhancement of NK-cell-related traits following vaccination with TGEV, while selection for low immune response was associated with reduced NK response in pigs. This may suggest that low immune response can reflect reduced contribution of NK cells in pigs.

UI	MeSH Term	Description	Entries
D007111	Immunity, Cellular	Manifestations of the immune response which are mediated by antigen-sensitized T-lymphocytes via lymphokines or direct cytotoxicity. This takes place in the absence of circulating antibody or where antibody plays a subordinate role.	Cell-Mediated Immunity,Cellular Immune Response,Cell Mediated Immunity,Cell-Mediated Immunities,Cellular Immune Responses,Cellular Immunities,Cellular Immunity,Immune Response, Cellular,Immune Responses, Cellular,Immunities, Cell-Mediated,Immunities, Cellular,Immunity, Cell-Mediated,Response, Cellular Immune
D007694	Killer Cells, Natural	Bone marrow-derived lymphocytes that possess cytotoxic properties, classically directed against transformed and virus-infected cells. Unlike T CELLS; and B CELLS; NK CELLS are not antigen specific. The cytotoxicity of natural killer cells is determined by the collective signaling of an array of inhibitory and stimulatory CELL SURFACE RECEPTORS. A subset of T-LYMPHOCYTES referred to as NATURAL KILLER T CELLS shares some of the properties of this cell type.	NK Cells,Natural Killer Cells,Cell, NK,Cell, Natural Killer,Cells, NK,Cells, Natural Killer,Killer Cell, Natural,NK Cell,Natural Killer Cell
D005761	Gastroenteritis, Transmissible, of Swine	A condition of chronic gastroenteritis in adult pigs and fatal gastroenteritis in piglets caused by a CORONAVIRUS.	Gastroenteritis, Transmissible, Porcine,Porcine Gastroenteritis, Transmissible,Swine Transmissible Gastroenteritis,Transmissible Gastroenteritis of Swine,Porcine Transmissible Gastroenteritis,Gastroenteritides, Porcine Transmissible,Gastroenteritides, Swine Transmissible,Gastroenteritides, Transmissible Porcine,Gastroenteritis, Porcine Transmissible,Gastroenteritis, Swine Transmissible,Gastroenteritis, Transmissible Porcine,Porcine Gastroenteritides, Transmissible,Porcine Transmissible Gastroenteritides,Swine Transmissible Gastroenteritides,Transmissible Gastroenteritides, Porcine,Transmissible Gastroenteritides, Swine,Transmissible Gastroenteritis, Porcine,Transmissible Gastroenteritis, Swine,Transmissible Porcine Gastroenteritides,Transmissible Porcine Gastroenteritis
D000704	Analysis of Variance	A statistical technique that isolates and assesses the contributions of categorical independent variables to variation in the mean of a continuous dependent variable.	ANOVA,Analysis, Variance,Variance Analysis,Analyses, Variance,Variance Analyses
D000818	Animals	Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA.	Animal,Metazoa,Animalia
D013552	Swine	Any of various animals that constitute the family Suidae and comprise stout-bodied, short-legged omnivorous mammals with thick skin, usually covered with coarse bristles, a rather long mobile snout, and small tail. Included are the genera Babyrousa, Phacochoerus (wart hogs), and Sus, the latter containing the domestic pig (see SUS SCROFA).	Phacochoerus,Pigs,Suidae,Warthogs,Wart Hogs,Hog, Wart,Hogs, Wart,Wart Hog
D014611	Vaccination	Administration of vaccines to stimulate the host's immune response. This includes any preparation intended for active immunological prophylaxis.	Immunization, Active,Active Immunization,Active Immunizations,Immunizations, Active,Vaccinations
D014613	Vaccines, Attenuated	Live vaccines prepared from microorganisms which have undergone physical adaptation (e.g., by radiation or temperature conditioning) or serial passage in laboratory animal hosts or infected tissue/cell cultures, in order to produce avirulent mutant strains capable of inducing protective immunity.	Attenuated Vaccine,Vaccines, Live, Attenuated,Attenuated Vaccines,Vaccine, Attenuated
D014765	Viral Vaccines	Suspensions of attenuated or killed viruses administered for the prevention or treatment of infectious viral disease.	Viral Vaccine,Vaccine, Viral,Vaccines, Viral