Nisoldipine
Catalog No.S1748 Synonyms: BAY K 5552
Molecular Weight(MW): 388.41
Nisoldipine (Sular) is a calcium channel blocker belonging to the dihydropyridines class, specific for L-type Cav1.2 with IC50 of 10 nM.
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Biological Activity
| Description | Nisoldipine (Sular) is a calcium channel blocker belonging to the dihydropyridines class, specific for L-type Cav1.2 with IC50 of 10 nM. | ||
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| Features | A member of the dihydropyridine (DHP) class of calcium channel blockers (CCBs), the most widely used class of CCBs. | ||
| Targets |
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| In vitro |
Nisoldipine is a potent blocker of L-type calcium channels. Nisoldipine binds directly to inactive calcium channels stabilizing their inactive conformation Similar to other DHP CCBs. Nisoldipine displays selectivity for arterial smooth muscle cells due to great number of inactive channels and the α1 subunit of the channel. [1] Nisoldipine is about 30 times less selective for delayed-rectifier K+ channels than for L-type Ca2+ channels, which inhibits IKr (rapidly activating delayed-rectifier K+ current) with IC50 of 23 μM, and IKs (slowly activating delayed-rectifier K+ current)with IC50 of 40 μM in guinea-pig ventricular myocytes. [2] Nisoldipine also displays antioxidant potency with IC50 of 28.2 μM both before and after the addition of active oxygen. This is tested by means of rat myocardial membrane lipid peroxidation with a nonenzymatic active oxygen-generating system (DHF/FeC13-ADP). [3] |
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| In vivo | Nisoldipine decreases arterial smooth muscle contractility and subsequent vasoconstriction by inhibiting the influx of calcium ions through L-type calcium channels. This results in vasodilation and an overall decrease in blood pressure, based on which Nisoldipine is used to treat mild to moderate essential hypertension, chronic stable angina and Prinzmetal's variant angina. [4] Nisoldipine shows some ability in patients with Timothy syndrome having Cav1.2 missense mutation G406R with IC50 of 267 nM, which is helpful to treat TS. [5] |
Protocol
| Kinase Assay:[1] |
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Binding experiments of electrophysiology: CHO cells expressing the subunit of the voltage-dependent L-type Ca2+ channel are cultrured in medium without serum in the presence of different concentrations of Nisoldipine. Then Ca2+ channel current elicited from a holding potential of -100 mV or -50 mV is recorded at room temperature with the whole-cell configuration of the patch-clamp method using the List EPC-7 patch-clamp amplifer and pClamp software. The concentration of competitor inhibiting 50% of the specific binding represents IC50. |
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| Cell Research:[2] |
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| Animal Research:[4] |
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Solubility (25°C)
| In vitro | DMSO | 77 mg/mL (198.24 mM) |
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| Ethanol | 60 mg/mL warmed (154.47 mM) | |
| Water | 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.
Chemical Information
| Molecular Weight | 388.41 |
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| Formula | C20H24N2O6 |
| CAS No. | 63675-72-9 |
| Storage | powder |
| Synonyms | BAY K 5552 |
Bio Calculators
Molarity Calculator
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*When preparing stock solutions, please always use the batch-specific molecular weight of the product found on the via label and MSDS / COA (available on product pages).
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Calculate the dilution required to prepare a stock solution. The Selleck dilution calculator is based on the following equation:
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* When preparing stock solutions always use the batch-specific molecular weight of the product found on the vial label and MSDS / COA (available online).
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Definitions of molecular mass, molecular weight, molar mass and molar weight:
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Molar mass (molar weight) is the mass of one mole of a substance and is expressed in g/mol.
Molarity Calculator
Clinical Trial Information
| NCT Number | Recruitment | Conditions | Sponsor/Collaborators | Start Date | Phases |
|---|---|---|---|---|---|
| NCT00985660 | Completed | Healthy | Mylan Pharmaceuticals | June 2007 | Phase 1 |
| NCT00979537 | Completed | Healthy | Mylan Pharmaceuticals | March 2007 | Phase 1 |
| NCT00311870 | Completed | Diabetic Nephropathy | Steno Diabetes Center|Bayer | March 1993 | Phase 4 |
Tech Support
Answers to questions you may have can be found in the inhibitor handling instructions. Topics include how to prepare stock solutions, how to store inhibitors, and issues that need special attention for cell-based assays and animal experiments.
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