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THE STIMULATORY EFFECT OF OPIOIDS ON CYCLIC AMP PRODUCTION IN SK-N-SH CELLS IS MEDIATED BY CALCIUM IONS

机译:阿片类药物对钙离子介导的SK-N-SH细胞周期AMP产生的刺激作用

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The present study examines the stimulatory effect of opioids on adenosine 3':5'-cyclic monophosphate (cyclic AMP) production in the human neuroblastoma cell line SK-N-SH, and its dependence on calcium. We show that, in this culture, the mu-opioid selective agonist [D-Ala(2), N-Me-Phe(4), Gly(5)-ol]-Enkephalin stimulates cyclic AMP production by 30% in a naloxone-reversible manner. This stimulation is completely dependent on calcium and involves the activation of calcium/calmodulin since it is abolished in the presence of EGTA, calcium channel blockers or N-(6-aminohexyl)-5-chloro-1-naphthalenesulfonamide hydrochloride (W-7). The results suggest that the activation of calcium/calmodulin dependent adenylyl cyclases by opioids in SK-N-SH cells is secondary to the induction of calcium influx and the consequent elevation of intracellular calcium level. [References: 40]
机译:本研究研究了阿片类药物对人神经母细胞瘤细胞系SK-N-SH中腺苷3':5'-环一磷酸(环AMP)产生的刺激作用及其对钙的依赖性。我们显示,在这种文化中,μ阿片类选择性激动剂[D-Ala(2),N-Me-Phe(4),Gly(5)-ol]-脑啡肽在纳洛酮中刺激循环AMP产生30% -可逆的方式。这种刺激完全取决于钙,并且涉及钙/钙调蛋白的活化,因为它在EGTA,钙通道阻滞剂或N-(6-氨基己基)-5-氯-1-萘磺酰胺盐酸盐(W-7)的存在下被消除了。 。结果表明,阿片样物质在SK-N-SH细胞中激活钙/钙调蛋白依赖性腺苷酸环化酶是诱导钙内流并随后升高细胞内钙水平的继发因素。 [参考:40]

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