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Ziconotide

齊考諾肽

Mechanism of action:

Ziconotide 是一種 ω-型鈣離子通道抑制劑(N-type calcium channel blocker),屬於合成胜肽類,其結構源自僧袍芋螺(Conus magus)毒素。Ziconotide 會選擇性結合於脊髓背角(dorsal horn)初級感覺神經元突觸前膜上的 ω-型鈣離子通道(N-type calcium channel),阻止動作電位引發的鈣離子內流。鈣離子內流被抑制後,與疼痛傳導相關的神經傳遞物質釋放減少,包括麩胺酸(glutamate)、P 物質(substance P)、降鈣素基因相關肽(calcitonin gene-related peptide)等。

​Reference(s):

1. Skov MJ et al. (2007). Nonclinical safety of ziconotide: an intrathecal analgesic of a new pharmaceutical class. Int J Toxicol. 


2. Miljanich GP et al. (2004). Ziconotide: neuronal calcium channel blocker for treating severe chronic pain. Curr Med Chem. 


3. McGivern JG et al. (2007). Ziconotide: a review of its pharmacology and use in the treatment of pain. Neuropsychiatr Dis Treat.

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