Riluzole |
Catalog No.GC13802
One-Click Copy Product Info
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Riluzole은 항경련제이며 43μM의 IC50으로 GABA 흡수를 억제할 수 있는 사용 의존성 Na+ 채널 차단제 계열에 속합니다.
Products are for research use only. Not for human use. We do not sell to patients.
Cas No.: 1744-22-5
Sample solution is provided at 25 µL, 10mM.
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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.
Cell experiment: | Two-electrode voltage clamp of Xenopus oocytes expressing exogenous GABAA receptors is performed with a CA-1B high performance oocyte clamp. The extracellular recording solution is ND-96 medium. Riluzole is applied from a common tip via a gravity-driven multibarrel drug-delivery system. Data acquisition and analysis are performed with pCLAMP 6 software[1]. |
Animal experiment: | Adult male Sprague-Dawley rats (180 to 350 g) are housed in a temperature-controlled room and maintained on a 12-h day/night cycle with unrestricted access to food and water. Pain behaviors are measured before and 5 h after induction of a mono-arthritis in the left knee joint. To test the effects of systemic (intraperitoneal, i.p.) application of Riluzole, pain behaviors are measured 1 h postinjection of Riluzole in normal and arthritic animals. To determine effects of Riluzole into the amygdala, pain behaviors are measured 15 min after starting Riluzole application through a stereotaxically implanted microdialysis probe. To investigate site of action in the amygdala of systemically applied Riluzole, potassium channel blockers are administered into the amygdala 45 min after systemic application of Riluzole and pain behaviors are measured 15 min later, i.e., 1 h postinjection of riluzole (i.p.)[2]. |
References: [1]. He Y, et al. Neuroprotective agent riluzole potentiates postsynaptic GABA(A) receptor function. Neuropharmacology. 2002 Feb;42(2):199-209. | |
| Cas No. | 1744-22-5 | 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 | ≥ 23.4mg/mL in DMSO | Storage | Store at RT |
| General tips | Please select the appropriate solvent to prepare the stock solution according to the
solubility of the product in different solvents; once the solution is prepared, please store it in
separate packages to avoid product failure caused by repeated freezing and thawing.Storage method
and period of the stock solution: When stored at -80°C, please use it within 6 months; when stored
at -20°C, please use it within 1 month. To increase solubility, heat the tube to 37°C and then oscillate in an ultrasonic bath for some time. |
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| Shipping Condition | Evaluation sample solution: shipped with blue ice. All other sizes available: with RT, or with Blue Ice upon request. | ||
| Prepare stock solution | |||
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1 mg | 5 mg | 10 mg |
| 1 mM | 4.2699 mL | 21.3493 mL | 42.6985 mL |
| 5 mM | 854 μL | 4.2699 mL | 8.5397 mL |
| 10 mM | 427 μL | 2.1349 mL | 4.2699 mL |
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Method for preparing in vivo formulation: Take μL DMSO master liquid, next addμL PEG300, mix and clarify, next addμL Tween 80, mix and clarify, next add μL saline, mix and clarify.
Method for preparing in vivo formulation: Take μL DMSO master liquid, next add μL Corn oil, mix and clarify.
Note: 1. Please make sure the liquid is clear before adding the next solvent.
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3. All of the above co-solvents are available for purchase on the GlpBio website.
Quality Control & SDS
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- Purity: >98.00% Appearance: A solid
- COA (Certificate of Analysis)
- SDS (Safety Data Sheet)
- Datasheet
Average Rating: 5 (Based on Reviews and 15 reference(s) in Google Scholar.)