GRC-17536
GRC-17536 is a TRPA1 antagonist with selective inhibition of TRPA1-mediated calcium influx.GRC-17536 binds to TRPA1 binding site 2 to inhibit channel activity.GRC-17536 reduces irritant-induced cough responses and citric acid-induced cough responses.GRC-17536 exhibits antitussive activity.GRC-17536 has poor pharmacokinetic and bioavailability properties, leading to discontinued development after a Phase IIa study.GRC-17536 can be used for the research of painful diabetic polyneuropathy, peripheral diabetic neuropathy, asthma, and chronic cough.
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- CAS No.: 1508276-29-6
- Formule: C20H13F5KN4O3S2
- Masse moléculaire:555.56
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Stockage:
Please store the product under the recommended conditions in the Certificate of Analysis.
Activité biologique
Description
IC50 & Target
[1]|
TRPA1 |
Cellular Effect
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Cell Line
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Type | Value | Description | References |
|---|---|---|---|---|
| CHO | IC50 |
6.8 μM
|
Inhibition of wild-type human TRPA1-mediated calcium flux in transiently transfected CHO GCaMP6 cells assessed via FLIPR Tetra calcium fluorescence assay with 10 min incubation of GRC-17536 prior to cinnamaldehyde addition, with fluorescence measured for 2 min post-agonist addition.
Inhibition of wild-type human TRPA1-mediated calcium flux in transiently transfected CHO GCaMP6 cells assessed via FLIPR Tetra calcium fluorescence assay with 10 min incubation of GRC-17536 prior to cinnamaldehyde addition, with fluorescence measured for 2 min post-agonist addition.
|
36622903 |
| CCD 19Lu | IC50 |
8.2 nM
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Inhibition of citric acid-induced calcium influx in human lung fibroblast CCD19-Lu cells assessed by calcium influx assay with 15 minutes pre-incubation prior to agonist addition.
Inhibition of citric acid-induced calcium influx in human lung fibroblast CCD19-Lu cells assessed by calcium influx assay with 15 minutes pre-incubation prior to agonist addition.
|
24819048 |
| A549 | IC50 |
5.0 nM
|
Inhibition of citric acid-induced calcium influx in human pulmonary alveolar epithelial A549 cells assessed by calcium influx assay with 15 minutes pre-incubation prior to agonist addition.
Inhibition of citric acid-induced calcium influx in human pulmonary alveolar epithelial A549 cells assessed by calcium influx assay with 15 minutes pre-incubation prior to agonist addition.
|
24819048 |
| CHO | IC50 |
4.6 nM
|
Inhibition of citric acid-induced calcium influx in Chinese hamster ovary cells stably expressing human TRPA1 (hTRPA1/CHO) assessed by calcium influx assay with 15 minutes pre-incubation prior to agonist addition.
Inhibition of citric acid-induced calcium influx in Chinese hamster ovary cells stably expressing human TRPA1 (hTRPA1/CHO) assessed by calcium influx assay with 15 minutes pre-incubation prior to agonist addition.
|
24819048 |
In Vitro
GRC-17536 (0.8 nM-25 μM; 10 min) binds to human TRPA1 site 2, as indicated by a large potency shift at the TRPA1N855S mutant, with no significant shifts at other tested mutants[3].
GRC-17536 (15 min) potently inhibits citric acid-induced calcium influx in human lung fibroblast CCD19-Lu cells with an IC50 of 8.2 nM[4].
GRC-17536 (15 min) potently inhibits citric acid-induced calcium influx in human pulmonary alveolar epithelial A549 cells with an IC50 of 5.0 nM[4].
GRC-17536 (15 min) potently inhibits citric acid-induced calcium influx in hTRPA1/CHO cells with an IC50 of 4.6 nM[4].
GRC-17536 (1 μM) is highly selective for TRPA1, showing minimal inhibition of human TRPV1, TRPV3, TRPV4, and TRPM8 receptors at 1 μM[4].
GRC-17536 (10 nM - 1 μM) inhibits TLR ligand-enhanced, AITC-induced calcium uptake in human pulmonary alveolar epithelial A549 cells, achieving ~40-68% inhibition at 10 nM and near-complete inhibition at 1 μM[4].
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
In Vivo
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
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Animal Model:Hartley (male, 200-600 g)[4]
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Dosage:30 mg/kg; 60 mg/kg; 100 mg/kg
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Administration:i.p.
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Result:Showed no significant cough inhibition at 30 mg/kg.
Inhibited citric acid-induced cough by 79% at 60 mg/kg.
Inhibited citric acid-induced cough by 89% at 100 mg/kg.
Reached a free mean plasma concentration around its in vitro IC50 value at 100 mg/kg.
Chemical Information
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CAS No. 1508276-29-6
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Masse moléculaire 555.56
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Formule C20H13F5KN4O3S2
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SMILES
[K].O=C1C2=C(SC=C2CC(=O)NC3=NC(=CS3)C=4C=CC(F)=C(C4F)C(F)(F)F)N(C(=O)N1C)C
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Livraison
Room temperature in continental US; may vary elsewhere.
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Stockage
Please store the product under the recommended conditions in the Certificate of Analysis.
Pureté et documentation
Références
Calculators
Concentration (start) × Volume (start) = Concentration (final) × Volume (final)