Biomaterial Database

The postnatal development of gut lamina propria lymphocytes: number, proliferation, and T and B cell subsets in conventional and germ-free pigs. 1991

H J Rothkötter, and H Ulbrich, and R Pabst

Centre of Anatomy, Medical School of Hannover, Germany.

The lamina propria (LP) contains many lymphocytes that are effector cells as well as memory cells of the gut immune system. This compartment was studied in normal and germ-free pigs in the early postnatal period up to 91 d of age. The number of LP lymphocytes nearly doubled between the 1st and 29th d. LP lymphocytes proliferated more in the crypt region than in the villi with a mitotic rate/h comparable to that in nonfollicular compartments of Peyer's patches and lymph nodes. The determination of the subpopulations of LP lymphocytes showed a 10-fold increase in CD2+ cells between d 1 and 40. About 80% of the LP T cells in 1- and 5-d-old pigs had the unusual CD2+CD4-CD8- phenotype. Ig-positive cells appeared later in the postnatal period than the T cells. On d 1, only a few IgM+ cells were observed. In 40-d-old animals, the number of IgA+ cells exceeded that of IgM+. Ten times more Ig+ cells were detected in the crypt region than in the villi. The germ-free pigs at an age of 49 d had a T cell subset pattern comparable to that of 5-d-old normal animals.

UI	MeSH Term	Description	Entries
D007156	Immunologic Memory	The altered state of immunologic responsiveness resulting from initial contact with antigen, which enables the individual to produce antibodies more rapidly and in greater quantity in response to secondary antigenic stimulus.	Immune Memory,Immunological Memory,Memory, Immunologic,Immune Memories,Immunologic Memories,Immunological Memories,Memory, Immune,Memory, Immunological
D007421	Intestine, Small	The portion of the GASTROINTESTINAL TRACT between the PYLORUS of the STOMACH and the ILEOCECAL VALVE of the LARGE INTESTINE. It is divisible into three portions: the DUODENUM, the JEJUNUM, and the ILEUM.	Small Intestine,Intestines, Small,Small Intestines
D008297	Male		Males
D002452	Cell Count	The number of CELLS of a specific kind, usually measured per unit volume or area of sample.	Cell Density,Cell Number,Cell Counts,Cell Densities,Cell Numbers,Count, Cell,Counts, Cell,Densities, Cell,Density, Cell,Number, Cell,Numbers, Cell
D002455	Cell Division	The fission of a CELL. It includes CYTOKINESIS, when the CYTOPLASM of a cell is divided, and CELL NUCLEUS DIVISION.	M Phase,Cell Division Phase,Cell Divisions,Division Phase, Cell,Division, Cell,Divisions, Cell,M Phases,Phase, Cell Division,Phase, M,Phases, M
D005260	Female		Females
D005856	Germ-Free Life	Animals not contaminated by or associated with any foreign organisms.	Axenic Animals,Gnotobiotics,Germfree Life,Animal, Axenic,Animals, Axenic,Axenic Animal,Germ Free Life,Gnotobiotic,Life, Germ-Free,Life, Germfree
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
D016131	Lymphocyte Subsets	A classification of lymphocytes based on structurally or functionally different populations of cells.	Lymphocyte Subpopulations,Lymphocyte Subpopulation,Lymphocyte Subset,Subpopulation, Lymphocyte,Subpopulations, Lymphocyte,Subset, Lymphocyte,Subsets, Lymphocyte