title: Effect of interleukin-1 receptor antagonist on concanavalin A response of peripheral blood mononuclear cells from newborn calves.
abstract: The coexistence of interleukin (IL)-1beta with IL-1 receptor antagonist (ra) in bovine colostrum and the possibility of simultaneous transfer of these cytokines to neonates via colostrum have been demonstrated. In the present study, we investigated the effect of IL-1ra on the mitogenic response of calf peripheral blood mononuclear cells (PBMC) stimulated by concanavalin A (ConA), which was mediated by IL-1. Pretreatment of PBMC with recombinant bovine (rb) IL-1ra alone significantly suppressed the proliferation of ConA-stimulated cells. However, in the presence of rbIL-1beta, the suppressive activity of rbIL-1ra was counteracted. These results suggest that coexistence of IL-1ra with IL-1 in colostrum may have no effect on the activation of the neonatal immune system by IL-1beta.
authors.affiliation: Department of Veterinary Microbiology, School of Veterinary Medicine, Rakuno Gakuen University, Ebetsu, Hokkaido, Japan.
authors.forename: H
authors.initials: H
authors.lastname: Yamanaka
authors.forename: Y
authors.initials: Y
authors.lastname: Katagiri
authors.forename: M
authors.initials: M
authors.lastname: Domi
authors.forename: K
authors.initials: K
authors.lastname: Hagiwara
authors.forename: R
authors.initials: R
authors.lastname: Kirisawa
authors.forename: H
authors.initials: H
authors.lastname: Iwai
mesh_terms: D000818:Animals; D000831:Animals, Newborn; D002417:Cattle / Q000276:immunology*; D002455:Cell Division / Q000187:drug effects; D003126:Colostrum / Q000502:physiology; D003208:Concanavalin A / Q000276:immunology* / Q000494:pharmacology; D004306:Dose-Response Relationship, Immunologic; D004347:Drug Interactions; D005260:Female; D053590:Interleukin 1 Receptor Antagonist Protein; D007375:Interleukin-1 / Q000037:antagonists & inhibitors / Q000276:immunology*; D007963:Leukocytes, Mononuclear / Q000187:drug effects / Q000276:immunology*; D011994:Recombinant Proteins / Q000276:immunology / Q000494:pharmacology; D012795:Sialoglycoproteins / Q000276:immunology* / Q000494:pharmacology
chemical_list: D053590:Interleukin 1 Receptor Antagonist Protein; D007375:Interleukin-1; D011994:Recombinant Proteins; D012795:Sialoglycoproteins; D003208:Concanavalin A