Modulation of Glycine Receptor Function by the Synthetic Cannabinoid HU210

被引:21
作者
Demir, Reyhan [1 ]
Leuwer, Martin [3 ]
de la Roche, Jeanne [1 ]
Krampfl, Klaus [2 ]
Foadi, Nilufar [1 ]
Karst, Matthias [1 ]
Dengler, Reinhard [2 ]
Haeseler, Gertrud [1 ]
Ahrens, Joerg [1 ]
机构
[1] Hannover Med Sch, Clin Anaesthesia & Crit Care Med, DE-30623 Hannover, Germany
[2] Hannover Med Sch, Dept Neurol & Neurophysiol, DE-30623 Hannover, Germany
[3] Univ Liverpool, Div Clin Sci, Liverpool L69 3BX, Merseyside, England
关键词
Glycine receptor; Inhibitory synaptic transmission; Anti-nociceptive; Cannabinoids; HU210; SUPERFICIAL DORSAL HORN; NEUROPATHIC PAIN; THERAPEUTIC TARGET; SPINAL-CORD; RAT; GABA(A); DELTA(9)-TETRAHYDROCANNABINOL; INHIBITION; MEMBRANE; SYNAPSES;
D O I
10.1159/000209291
中图分类号
R9 [药学];
学科分类号
1007 ;
摘要
Loss of inhibitory synaptic transmission within the dorsal horn of the spinal cord plays a key role in the development of chronic pain following inflammation or nerve injury. Inhibitory postsynaptic transmission in the adult spinal cord involves mainly glycine. HU210 is a non-psychotropic, synthetic cannabinoid. As we hypothesized that non-CB receptor mechanisms of HU210 might contribute to its anti-inflammatory and anti-nociceptive effects we investigated the interaction of HU210 with strychnine-sensitive alpha(1) glycine receptors by using the whole-cell patch clamp technique. HU210 showed a positive allosteric modulating effect in a low micromolar concentration range (EC50 : 5.1 +/- 2.6 mu mol/l). Direct activation of glycine receptors was observed at higher concentrations above 100 mu mol/l (EC50 : 188.7 +/- 46.2 mu mol/l). These in vitro results suggest that strychnine-sensitive glycine receptors may be a target for HU210 mediating some of its anti-inflammatory and anti-nociceptive properties. Copyright (C) 2009 S. Karger AG, Basel
引用
收藏
页码:270 / 274
页数:5
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