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RiluzoleSodium channel protein inhibitor

Riluzole

Catalog No. A8513
Size Price Stock Qty
100mg $60.00 In stock
500mg $200.00 In stock

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Sample solution is provided at 25 µL, 10mM.

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Chemical structure

Riluzole

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Chemical Properties

Cas No. 1744-22-5 SDF Download SDF
Chemical Name 6-(trifluoromethoxy)-1,3-benzothiazol-2-amine
Canonical SMILES C1=CC2=C(C=C1OC(F)(F)F)SC(=N2)N
Formula C8H5F3N2OS M.Wt 234.2
Solubility Soluble in DMSO > 10 mM Storage Store at -20°C
General tips For obtaining a higher solubility , please warm the tube at 37 ℃ and shake it in the ultrasonic bath for a while.Stock solution can be stored below -20℃ for several months.
Shipping Condition Evaluation sample solution : ship with blue ice
All other available size: ship with RT , or blue ice upon request

Background

Riluzole, a novel glutamate-modulating agent, has neuroprotective effects [1] [2], via a complex mechanism involving inhibition of voltage-dependent Na channels, high-voltage activated Ca and K channels, and inhibition of protein kinase C. It was suggested that this mechanism was involved in antioxidative processes [3]. The IC50 to inhibit inward Na+ currents in primary cultures of rat cortical neurons is 51 μM [4].
Glutamate-mediated impairments were related to neurodegenerative diseases. Reduction of excess central nervous system (CNS) glutamate was the same aim of several treatment strategies [1] [5].
In HEKGLT1, HEKGLAST or HEKEAAC1 cells, riluzole increased Na+-dependent uptake in a dose-dependent manner, with significant effects at concentrations as low as 0.01–0.1 μM and the highest effect at 100 μM. The increase in glutamate uptake induced by 100 μM riluzole was similar in all cell lines (+27% in HEKGLAST, +38% in HEKGLT1, +39% in HEKEAAC1). Higher riluzole concentrations (300 and 1000 μM) were toxic, since at the end of experiments the majority of cells were floating, and specific and non-specific glutamate uptake were reduced by more than 50% [3].
In rat cortical synaptosomes, Na+-dependent L-[3H] glutamate uptake was increased by riluzole (0.1-100μM), a significant 16% increase was found with 100μM riluzole. With 300μM riluzole, no real effect was found on glutamate uptake. Possibly high concentration can lead to toxic effects. Both specific and non-specific glutamate uptakes were markedly reduced (about 50%) by 1 mM riluzole, at this concentration, synaptosomal integrity may be lost [3].
References:
[1]. Christiane Malgouris, Florence Bardot, Marc Daniel, et al. Riluzole, a Novel Antiglutamate, Prevents Memory Loss Hippocampal Neuronal Damage in lschemic Gerbils. The Journal of Neuroscience, 1989, 9(11): 3720-3727.
[2]. Carlos A. Zarate, Jr., Jennifer L. Payne, Jorge Quiroz, et al. An Open-Label Trial of Riluzole in Patients With Treatment-Resistant Major Depression. Am J Psychiatry, 2004, 161:171-174.
[3]. Elena Fumagalli, Marcella Funicello, Thomas Rauen, et al. Riluzole enhances the activity of glutamate transporters GLAST, GLT1 and EAAC1. European Journal of Pharmacology, 2008, 578: 171-176.
[4]. Masanori Ohashi, Akiyoshi Saitoh, Misa Yamada, et al. Riluzole in the prelimbic medial prefrontal cortex attenuates veratrine-induced anxiety-like behaviors in mice. Psychopharmacology, 2015, 232:391–398.
[5]. M. J. Hudspith. Glutamate: a role in normal brain function, anaesthesia, analgesia and CNS injury. British Journal of Anaesthesia, 1997, 78: 731-747.