Immunomodulatory action of class mu-, delta- and kappa-opioid receptor agonists in mice.
Endogenous opioids exert a variety of functions outwith the central nervous system, including modulation of some murine lymphocyte functions. The results of this study indicate that mu-, delta- and kappa-receptor selective agonists are potent in vitro stimulators of mitogen-induced proliferation of murine T-lymphocytes. Moreover, the observed enhancement of mitogen-induced proliferation was reversed by mu-, delta- and kappa-receptor class selective antagonists, beta-funaltrexamine, ICI 174,864 and nor-binaltorphimine, respectively. An additional study has revealed that repeated administration (four injections) of the opioid receptor selective agonists DAGO, DPDPE and U-50488 also enhanced the concanavalin A-induced proliferation of lymphocytes. These results suggest that there are three classes of opioid receptors on T-lymphocytes and that all these receptor classes are involved in the stimulation of concanavalin A-induced proliferation.
Kowalski
J
J
Department of Clinical Pharmacology, Silesian University School of Medicine, Katowice, Poland.
D019900:3,4-Dichloro-N-methyl-N-(2-(1-pyrrolidinyl)-cyclohexyl)-benzeneacetamide, (trans)-Isomer / Q000494:pharmacology; D000818:Animals; D020875:Enkephalin, Ala(2)-MePhe(4)-Gly(5)-; D020881:Enkephalin, D-Penicillamine (2,5)-; D004743:Enkephalin, Leucine / Q000031:analogs & derivatives / Q000494:pharmacology; D004745:Enkephalins / Q000494:pharmacology; D007109:Immunity / Q000187:drug effects*; D008213:Lymphocyte Activation / Q000187:drug effects; D008297:Male; D051379:Mice; D008810:Mice, Inbred C57BL; D008934:Mitogens / Q000494:pharmacology; D009271:Naltrexone / Q000031:analogs & derivatives / Q000494:pharmacology; D009292:Narcotic Antagonists / Q000494:pharmacology; D017465:Receptors, Opioid, delta / Q000819:agonists* / Q000037:antagonists & inhibitors; D017473:Receptors, Opioid, kappa / Q000819:agonists* / Q000037:antagonists & inhibitors; D017450:Receptors, Opioid, mu / Q000819:agonists* / Q000037:antagonists & inhibitors; D013601:T-Lymphocytes / Q000187:drug effects / Q000276:immunology
D004745:Enkephalins; D008934:Mitogens; D009292:Narcotic Antagonists; D017465:Receptors, Opioid, delta; D017473:Receptors, Opioid, kappa; D017450:Receptors, Opioid, mu; D020875:Enkephalin, Ala(2)-MePhe(4)-Gly(5)-; C051844:norbinaltorphimine; D004743:Enkephalin, Leucine; D009271:Naltrexone; D019900:3,4-Dichloro-N-methyl-N-(2-(1-pyrrolidinyl)-cyclohexyl)-benzeneacetamide, (trans)-Isomer; C024524:beta-funaltrexamine; D020881:Enkephalin, D-Penicillamine (2,5)-; C040643:N,N-diallyl-tyrosyl-alpha-aminoisobutyric acid-phenylalanyl-leucine