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Formula | C20H13F3N4O2S |
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Molecular Weight | 430.4 | CAS No. | 659730-32-2 | ||||
Solubility (25°C)* | In vitro | DMSO | 86 mg/mL (199.81 mM) | ||||
Water | Insoluble | ||||||
Ethanol | Insoluble | ||||||
In vivo (Add solvents to the product individually and in order) |
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* <1 mg/ml means slightly soluble or insoluble. * Please note that Selleck tests the solubility of all compounds in-house, and the actual solubility may differ slightly from published values. This is normal and is due to slight batch-to-batch variations. * Room temperature shipping (Stability testing shows this product can be shipped without any cooling measures.) |
Description | AMG 517 is a potent and selective TRPV1 antagonist, and antagonizes capsaicin, proton, and heat activation of TRPV1 with IC50 of 0.76 nM, 0.62 nM and 1.3 nM, respectively. | ||
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Targets |
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In vitro | AMG 517 inhibits CAP- (500 nM), acid- (pH 5.0), or heat-(45 °C) induced 45Ca2+ influx into human TRPV1-expressing CHO Cells with IC50 of 0.76 nM, 0.62 nM and 1.3 nM. AMG 517 blocks capsaicin-, proton-, and heat-induced inward currents in TRPV1-expressing cells similarly. AMG 517 inhibits native TRPV1 activation by capsaicin in rat dorsal root ganglion neurons with an IC50 value of 0.68 nM. AMG 517 is a competitive antagonist of both rat and human TRPV1 with dissociation constant (Kb) values of 4.2 and 6.2 nM, respectively. AMG 517 is a highly selective TRPV1 antagonist. The IC50 value for AMG 517 is >20 μM against 2-APB-activated TRPV2 and TRPV3, 4-αPDD-activated TRPV4, allyl isothiocyanate-activated TRPA1, and icilin-activated TRPM8 in cell-based assays that measure agonist-induced increases in intracellular calcium in CHO cells recombinantly expressing the appropriate TRP channel. [1] | ||
In vivo | Oral administration of AMG 517 produces a dose-dependent increase in plasma concentrations, it also produces a dose-dependent decrease in the number of flinches induced by capsaicin treatment. The minimally effective dose (MED), based on a statistically significant difference in number of flinches from the vehicle versus capsaicin-administered group, is 0.3 mg/kg for AMG 517. The corresponding plasma concentrations are 90 to 100 ng/mL for AMG 517. AMG 517 (3 mg/kg) exhibits significant reductions in capsaicin-induced flinch up to 24 h after dosing. AMG 517 blocks thermal hyperalgesia in CFA model of pain.[1] AMG 517 elicits hyperthermia in rodents, dogs and monkeys but not in TRPV1 knockout mice. Interestingly, hyperthermia evoked by TRPV1-selective antagonists is attenuated after repeated dosing of these antagonists to rats, dogs and monkeys, and TRPV1 knockout mice does not exhibit an impairment of thermoregulation.[2] | ||
Features | Does not activate TRPV1 at concentrations ≤40 μM (measured by 45Ca2+ uptake into TRPV1-expressing cells), indicating that it is not a partial agonist. |
Animal Study:[1] |
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TRPV1+ sensory nerves suppress conjunctival inflammation via SST-SSTR5 signaling in murine allergic conjunctivitis [ Mucosal Immunol, 2024, S1933-0219(24)00006-0] | PubMed: 38331094 |
Heat promotes melanogenesis by increasing the paracrine effects in keratinocytes via the TRPV3/Ca2+/Hh signaling pathway [ iScience, 2023, 26(5):106749] | PubMed: 37216091 |
The neural pathway of the hyperthermic response to antagonists of the transient receptor potential vanilloid-1 channel [ Temperature (Austin), 2023, 10(1):136-154] | PubMed: 37187834 |
The neural pathway of the hyperthermic response to antagonists of the transient receptor potential vanilloid-1 channel [ Temperature (Austin), 2023, 10(1):136-154] | PubMed: 37187834 |
TRPV1+ sensory nerves modulate corneal inflammation after epithelial abrasion via RAMP1 and SSTR5 signaling [ Mucosal Immunol, 2022, 10.1038/s41385-022-00533-8] | PubMed: 35680973 |
Cyclovirobuxine D, a cardiovascular drug from traditional Chinese medicine, alleviates inflammatory and neuropathic pain mainly via inhibition of voltage-gated Cav3.2 channels [ Front Pharmacol, 2022, 13:1081697] | PubMed: 36618940 |
Electroacupuncture Pretreatment Elicits Neuroprotection Against Cerebral Ischemia-Reperfusion Injury in Rats Associated with Transient Receptor Potential Vanilloid 1-Mediated Anti-Oxidant Stress and Anti-Inflammation [ Inflammation, 2019, 10.1007/s10753-019-01040-y] | PubMed: 31190106 |
Attenuation of TRPV1 by AMG-517 after nerve injury promotes peripheral axonal regeneration in rats [Bai J, et al. Mol Pain, 2018, 14:1744806918777614] | PubMed: 29768956 |
Transient Receptor Potential Vanilloid 1 Antagonists Prevent Anesthesia-induced Hypothermia and Decrease Postincisional Opioid Dose Requirements in Rodents. [ Anesthesiology, 2017, 127(5):813-823] | PubMed: 28806222 |
Repurposing FDA-approved drugs for anti-aging therapies. [ Biogerontology, 2016, 17(5-6):907-920] | PubMed: 27484416 |
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