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针对δ阿片受体的自身抗体发挥阿片类激动剂的作用,并表现出免疫调节活性。

Autoantibodies to the delta-opioid receptor function as opioid agonists and display immunomodulatory activity.

作者信息

Ranganathan Parvathi, Chen Hao, Adelman Miranda K, Schluter Samuel F

机构信息

Department of Immunobiology, University of Arizona, 1656 E. Mabel Street, PO Box 245221, Tucson, Arizona 85724, USA.

出版信息

J Neuroimmunol. 2009 Dec 10;217(1-2):65-73. doi: 10.1016/j.jneuroim.2009.10.007. Epub 2009 Oct 30.

Abstract

In this report, we show that affinity purified human anti-delta opioid receptor (DOR) autoantibodies from IVIG are specific to DOR and possess agonistic properties displayed by their ability to dramatically decrease forskolin stimulated cAMP accumulation. Anti-DOR autoantibody also caused phosphorylation of the opioid receptor. Anti-DOR autoantibody treatment showed a significant reduction in CXCR4 gene expression as well as surface protein expression. In contrast, anti-DOR autoantibody treatment significantly upregulated CCR5 gene and protein expression. The presence of anti-DOR autoantibodies in IVIG and their potent immunomodulatory activity is further evidence to support the cross-talk between the neuroendocrine and immune systems.

摘要

在本报告中,我们表明,从静脉注射免疫球蛋白(IVIG)中亲和纯化得到的人抗δ阿片受体(DOR)自身抗体对DOR具有特异性,并具有激动特性,表现为它们能够显著降低福斯高林刺激的环磷酸腺苷(cAMP)积累。抗DOR自身抗体还导致阿片受体磷酸化。抗DOR自身抗体处理显示CXCR4基因表达以及表面蛋白表达显著降低。相比之下,抗DOR自身抗体处理显著上调CCR5基因和蛋白表达。IVIG中抗DOR自身抗体的存在及其强大的免疫调节活性进一步证明了神经内分泌系统与免疫系统之间存在相互作用。

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