期刊
JOURNAL OF NEUROIMMUNOLOGY
卷 130, 期 1-2, 页码 55-65出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/S0165-5728(02)00211-4
关键词
restraint stress; alpha-adrenergic receptor; D2-dopamine receptor; GTP-binding (G) proteins; cytokine; NK cell
The involvement of catecholamine receptors (alpha-adrenergic, D2-dopamine (DA)) was investigated in restraint stress influenced immune responses with concomitant changes of G-protein signal transduction. Impairment of the spleen morphology, TH1/TH2 cytokine network and natural killer (NK) cell function was observed. In vivo administration of specific antagonists prior to restraint stress reversed the immunosuppression. These findings demonstrate that D2-type dopaminergic mechanism represents the dominant component in regulation of Galphas/Galphai(1,2)/Galphaq/11-protein signal transduction and contribute to cell responses at postreceptor level of both, central nervous and immune systems. G-protein-coupled receptors (GPCRs) can modulate cytokine production and may play a regulatory role in immune effector mechanisms. (C) 2002 Elsevier Science B.V. All rights reserved.
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