AA43279 (354812-16-1) is a selective Nav1.1 activator. In HEK-293 cells expressing human Nav1.1 channels AA43279 increased the Nav1.1-mediated current in a concentration dependent manner (EC50=9.5 μM). In rat hippocampal brain slices it increased the firing activity of parvalbumin-expressing, fast-spiking GABAergic interneurons and increased the spontaneous inhibitory post-synaptic currents recorded from pyramidal neurons. It displayed anticonvulsant activity in vivo. Important tool compound for exploring the physiology of Nav1.1 channels.1
1) Frederiksen et al. (2017), A small molecule activator of Nav 1.1 channels increases fast-spiking interneuron excitability and GABAergic transmission in vitro and has anti-convulsive effects in vivo.; Eur. J. Neuroscience, 46 1887
