Lymphocyte Phenotypes in the Intestinal Mucosa of Sheep Infected with Trichostrongylus Colubriformis
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Monoclonal antibodies to ovine lymphocyte surface antigens were used in an immunohistochemical study of the intestine of sheep. In the epithelium CD8+ cells predominated whereas the majority of lamina propria T lymphocytes were CD4+. Infection of sheep with the parasitic nematode Trichostrongylus colubriformis including sufficiently large numbers of parasites to induce protective immunity did not alter the number of CD4+ or CD8+ lymphocytes in the intestinal mucosa. In contrast, exposure of naive sheep to a single large infection of T. colubriformis resulted in a substantial decrease in number of CD8+ cells and moderate decreases in number of CD4+ cells in the duodenal but not the jejunal mucosa. MHC class II antigens were not detected either in or on epithelial cells of the sheep small intestine.
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PMID: 36569897 PMC: 9772029. DOI: 10.3389/fimmu.2022.1048708.
Discoidin domain receptor 1: isoform expression and potential functions in cirrhotic human liver.
Song S, Shackel N, Wang X, Ajami K, McCaughan G, Gorrell M Am J Pathol. 2011; 178(3):1134-44.
PMID: 21356365 PMC: 3070552. DOI: 10.1016/j.ajpath.2010.11.068.
Site-directed differences in the immune response to the fetus.
Lee C, Mercer W, Brandon M Immunology. 1989; 66(2):312-7.
PMID: 2925229 PMC: 1385106.
Subpopulations of lymphocytes in the mammary gland of sheep.
Lee C, Meeusen E, Brandon M Immunology. 1989; 66(3):388-93.
PMID: 2703254 PMC: 1385225.
T-cell receptor-gamma delta association with lymphocyte populations in sheep intestinal mucosa.
Gyorffy E, Glogauer M, Kennedy L, Reynolds J Immunology. 1992; 77(1):25-30.
PMID: 1383137 PMC: 1421599.