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Effect of Arvanil (N-arachidonoyl-vanillyl-amine), a Nonpungent Anandamide-Capsaicin Hybrid, on Ion Currents in NG108-15 Neuronal Cells

Effect of Arvanil (N-arachidonoyl-vanillyl-amine), a Nonpungent Anandamide-Capsaicin Hybrid, on Ion Currents in NG108-15 Neuronal Cells

Yuk-Keung Lo, Hung-Ting Chiang, Sheng-Nan Wu

Biochem Pharmacol. 2003 Feb 15;65(4):581-91.

PMID: 12566085

Abstract:

The effects of arvanil (N-arachidonoyl-vanillyl-amine), a structural hybrid between capsaicin and anandamide, on ion currents in a mouse neuroblastoma and rat glioma hybrid cell line, NG108-15, were examined with the aid of the whole-cell voltage-clamp technique. Arvanil (0.2-50 microM) caused an inhibition of voltage-dependent L-type Ca(2+) current (I(Ca,L)) in a concentration-dependent manner. Arvanil produced no change in the overall shape of the current-voltage relationship of I(Ca,L). The IC(50) value of arvanil-induced inhibition of I(Ca,L) was 2 microM. Arvanil (5 microM) could shift the steady-state inactivation curve of I(Ca,L) to a more negative potential by approximately -15mV. No effect of arvanil (20 microM) on delayed rectifier K(+) current (I(K(DR))) was observed; however, capsaicin (20 microM), glyceryl nonivamide (20 microM) and capsinolol (20 microM) suppressed it significantly. Arvanil (20 microM) caused a slight reduction in the amplitude of erg (ether-à-go-go-related)-mediated K(+) current (I(K(erg))) without modifying the activation curve of this current, while capsaicin and glyceryl nonivamide were more effective in suppressing I(K(erg)). Under current-clamp configuration, arvanil decreased the firing frequency of action potentials. Arvanil-mediated inhibition of I(Ca,L) appeared to be independent of its binding to either vanilloid or cannabinoid receptors. The channel-blocking properties of arvanil may, at least in part, contribute to the underlying mechanisms by which it affects neuronal or neuroendocrine function.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
AP128007318	Arvanil		128007-31-8	Price

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