The Effect of Lamotrigine on Nav1.4 Voltage-Gated Sodium Channels

Lamotrigine (LTG) is an anticonvulsant drug used in the treatment of epilepsy and bipolar disorder and it has been known that LTG targets voltage-dependent sodium channels (VGSCs). In this study, we investigated the effect of LTG on the Nav1.4 Na+ current using HEK293 cells expressing mouse Nav1.4 V...

Full description

Saved in:
Bibliographic Details
Main Authors: Yoshihiko Nakatani (Author), Haruka Masuko (Author), Taku Amano (Author)
Format: Book
Published: Elsevier, 2013-01-01T00:00:00Z.
Subjects:
Online Access:Connect to this object online.
Tags: Add Tag
No Tags, Be the first to tag this record!

MARC

LEADER 00000 am a22000003u 4500
001 doaj_eb6c65f1480c450cbebc45aed6f79c08
042 |a dc 
100 1 0 |a Yoshihiko Nakatani  |e author 
700 1 0 |a Haruka Masuko  |e author 
700 1 0 |a Taku Amano  |e author 
245 0 0 |a The Effect of Lamotrigine on Nav1.4 Voltage-Gated Sodium Channels 
260 |b Elsevier,   |c 2013-01-01T00:00:00Z. 
500 |a 1347-8613 
500 |a 10.1254/jphs.13116SC 
520 |a Lamotrigine (LTG) is an anticonvulsant drug used in the treatment of epilepsy and bipolar disorder and it has been known that LTG targets voltage-dependent sodium channels (VGSCs). In this study, we investigated the effect of LTG on the Nav1.4 Na+ current using HEK293 cells expressing mouse Nav1.4 VGSCs. By the treatment of LTG, Nav1.4 Na+ current was inhibited in a dose-dependent manner. Moreover, 100 μM LTG decreased Nav1.4 Na+ current around 40% and shifted the V1/2 of the inactivation curve to the hyperpolarization side by 20.96 mV. These findings suggest that LTG inhibits Nav1.4 Na+ current and modifies the kinetics of the inactivated state. Keywords:: lamotrigine, Nav1.4, voltage-clamp 
546 |a EN 
690 |a Therapeutics. Pharmacology 
690 |a RM1-950 
655 7 |a article  |2 local 
786 0 |n Journal of Pharmacological Sciences, Vol 123, Iss 2, Pp 203-206 (2013) 
787 0 |n http://www.sciencedirect.com/science/article/pii/S1347861319302725 
787 0 |n https://doaj.org/toc/1347-8613 
856 4 1 |u https://doaj.org/article/eb6c65f1480c450cbebc45aed6f79c08  |z Connect to this object online.