title: Human alpha 1-acid glycoprotein-exposed macrophages release interleukin 1 inhibitory activity.
abstract: The concanavalin A-unreactive variants of alpha 1-acid glycoprotein introduced in culture medium of monocytes/macrophages induces the inhibition of thymocyte proliferative activity of interleukin 1. LPS or LPS receptors were not involved in the activity of alpha 1-acid glycoprotein on macrophages. alpha 1-acid glycoprotein did not show any direct effect on thymocytes whereas the monocyte/macrophage-supernatant inhibited the interleukin 1 proliferative effect. The activity of tumor necrosis factor and interleukin 2 was not altered by the alpha 1-acid glycoprotein-macrophage supernatant.
mesh_terms: D000818:Animals; D002455:Cell Division; D002478:Cells, Cultured; D004591:Electrophoresis, Polyacrylamide Gel; D006801:Humans; D007375:Interleukin-1 / Q000502:physiology*; D008222:Lymphokines / Q000378:metabolism* / Q000494:pharmacology; D008264:Macrophages / Q000187:drug effects / Q000378:metabolism*; D051379:Mice; D008809:Mice, Inbred C3H; D008811:Mice, Inbred DBA; D009000:Monocytes / Q000187:drug effects / Q000378:metabolism; D009961:Orosomucoid / Q000378:metabolism / Q000494:pharmacology*; D010529:Peritoneal Cavity / Q000166:cytology; D013950:Thymus Gland / Q000166:cytology
chemical_list: D007375:Interleukin-1; D008222:Lymphokines; D009961:Orosomucoid