L-type calcium channel Inhibitor

Ruthenium red (Ammoniated ruthenium oxychloride) is a polycationic dye widely used for electron microscopy (EM) of cells, tissues and vegetative bacteria. Ruthenium red strongly reacts with phospholipids and fatty acids and binds to acidic mucopolysaccharides. Ruthenium red is a L-type calcium current (I_Ca) blocker. When using Ruthenium Red to stain plant tissue sections affected by pathogens, the breakdown of mucilaginous substances by the pathogens prevents them from taking up the stain, whereas the cell walls of healthy tissue stain red.

Ethacrynic acid has anti-inflammatory and anticancer activity. Ethacrynic acid is an orally active diuretic. Ethacrynic acid is an inhibitor of glutathione S-transferase (GSTs) and Wnt signaling pathways. Ethacrynic acid is a radiosensitizer. Ethacrynic acid can inhibit airway smooth muscle (ASM) contraction in mice. Ethacrynic acid can increase the outflow of aqueous humor from the eye for the study of glaucoma.

Bepridil hydrochloride (CERM 1978; Org 5730 hydrochloride) is an orally active non-selective calcium channel antagonist with multi-ion channel blocking activity. Bepridil hydrochloride modulates Calmodulin, the 20S proteasome, T-type/L-type calcium channels, cardiac sodium channels, multiple potassium channels, γ-secretase, β-secretase, and mitoK_ATP/sarcK_ATP channels. Bepridil hydrochloride acts as a hydroxyl radical scavenger, regulates mitochondrial and intracellular calcium handling, and exerts antiarrhythmic, antianginal, and cardioprotective effects. Bepridil hydrochloride alters amyloid precursor protein processing, reduces β-amyloid and thalamic calcium levels, restores seladin-1/DHCR24 expression, and improves sensorimotor recovery after cerebral ischemia. Bepridil hydrochloride also exhibits potent inhibitory effects on SARS-CoV-2 replication. Bepridil hydrochloride is used in studies related to stable angina, arrhythmias, cerebral ischemia, Alzheimer's disease, and SARS-CoV-2 infection.

Nisoldipine (BAY-k 5552; Sular) is an orally active and blood-brain barrier-penetrating dihydropyridine calcium antagonist, with greater vascular selectivity than other calcium channel antagonists. Nisoldipine inhibits calcium influx and blocks voltage-gated calcium channels. Nisoldipine dilates coronary and systemic arteries. Nisoldipine has antihypertensive and anti-anginal activity. Nisoldipine also displays neuroprotective and antiviral activity.

Diltiazem is an orally active L-type Ca²⁺ channel blocker. Diltiazem shows antihypertensive and antiarrhythmic effects. Diltiazem can be used for the research of cardiac arrhythmia, hypertension, and angina pectoris.

Flufenamic acid is a non-steroidal anti-inflammatory agent, inhibits cyclooxygenase (COX), activates AMPK, and also modulates ion channels, blocking chloride channels and L-type Ca²⁺ channels, modulating non-selective cation channels (NSC), activating K⁺ channels. Flufenamic acid binds to the central pocket of TEAD2 YBD and inhibits both TEAD function and TEAD-YAP-dependent processes, such as cell migration and proliferation.

Isradipine (PN 200-110) is an orally active and blood-brain barrier permeability L-type calcium channel blocker. Isradipine, as a powerful peripheral vasodilator, is a dihydropyridine calcium antagonist with selective actions on the heart as well as the peripheral circulation. Isradipine is a potentially viable neuroprotective agent for Parkinson's disease.

Cilnidipine is a long-acting, second-generation dihydropyridine Ca²⁺-channel blocker on L and N-type Ca²⁺ channel. Antihypertensive effects.

Felodipine, a dihydropyridine, is a potent, vasoselective calcium channel antagonist. Felodipine lowers blood pressure (BP) by selective action on vascular smooth muscle, especially in the resistance vessels. Felodipine, an anti-hypertensive agent, induces autophagy. Felodipine can cross the blood-brain barrier.

Ginsenoside Rd inhibits TNFα-induced NF-κB transcriptional activity with an IC₅₀ of 12.05±0.82 μM in HepG2 cells. Ginsenoside Rd inhibits expression of COX-2 and iNOS mRNA. Ginsenoside Rd also inhibits Ca²⁺ influx. Ginsenoside Rd inhibits CYP2D6, CYP1A2, CYP3A4, and CYP2C9, with IC₅₀s of 58.0±4.5 μM, 78.4±5.3 μM, 81.7±2.6 μM, and 85.1±9.1 μM, respectively.

Mibefradil dihydrochloride (Ro 40-5967 dihydrochloride) is a calcium channel blocker with moderate selectivity for T-type Ca²⁺ channels (IC₅₀s of 2.7 μM and 18.6 μM for T-type and L-type currents, respectively).

Lacidipine is an orally active and highly selective L-type calcium channel blocker that acts on smooth muscle calcium channels, primarily dilates peripheral arteries, reduces peripheral resistance, and has long-lasting anti-hypertensive activity. Lacidipine protects HKCs from apoptosis induced by ATP depletion and recovery by modulating the caspase-3 pathway. Lacidipine can be used in studies of hypertension, atherosclerosis and acute kidney injury (AKI).

Dronedarone (SR 33589), a derivative of amiodarone (HY-14187), is a class III antiarrhythmic agent for the study of atrial fibrillation (AF) and atrial flutter. Dronedarone is a potent blocker of multiple ion currents, including potassium current, sodium current, and L-type calcium current, and exhibits antiadrenergic effects by noncompetitive binding to β-adrenergic receptors. Dronedarone is a substrate for and a moderate inhibitor of CYP3A4.

Pinaverium bromide is an L-type calcium channel blocker with selectivity for the gastrointestinal tract, effectively relieves pain, diarrhea and intestinal discomfort, provides good therapeutic efficacies without significant adverse effects on Irritable bowel syndrome (IBS) patients.

Azelnidipine (CS 905) is a dihydropyridine calcium channel blocker that is effective orally. Azelnidipine inhibits the intracellular calcium ion flow and lower blood pressure by selectively blocking L-type calcium channel on the membrane of vascular smooth muscle. Azelnidipine inhibits esophageal squamous cell carcinoma proliferation by targeting MEK1/2. Azelnidipine also has anti-inflammatory, antioxidant and neuroprotective effects .

(R)-(+)-Bay-K-8644 is a calcium channel inhibitor. (R)-(+)-Bay-K-8644 inhibits Ba²⁺ currents (I_Ba) (IC₅₀=975 nM).

Norverapamil hydrochloride ((±)-Norverapamil hydrochloride), an N-demethylated metabolite of Verapamil, is a L-type calcium channel blocker and a P-glycoprotein (P-gp) function inhibitor.

Catharanthine ((+)-3,4-Didehydrocoronaridine), a constituent of anticancer vinca alkaloids, inhibits voltage-operated L-type Ca²⁺ channel (VOCC). Catharanthine has IC₅₀s of 220 μM and 8 μM for VOCC currents in cardiomyocytes and vascular smooth muscle cells (VSMCs), respectively. Catharanthine lowers blood pressure (BP), heart rate (HR). Catharanthine has anti-cancer activity.

Ethacrynic acid (Standard) is the analytical standard of Ethacrynic acid. This product is intended for research and analytical applications. Ethacrynic acid (Etacrynic acid) is a diuretic. Ethacrynic acid is an inhibitor of glutathione S-transferases (GSTs). Ethacrynic acid is a potent inhibitor of NF-kB-signaling pathway, and also modulates leukotriene formation. Ethacrynic acid also inhibits L-type voltage-dependent and store-operated calcium channel, leading to relaxation of airway smooth muscle (ASM) cells. Ethacrynic acid has anti-inflammatory properties that reduces the retinoid-induced ear edema in mice.

Trimebutine is a multi-target inhibitor and opioid receptor agonist with antimuscarinic activity. Trimebutine inhibits L-type Ca²⁺ channels and large-conductance calcium-activated potassium channels (BK_Ca channels), thereby inhibiting extracellular calcium influx and potassium ion efflux. Trimebutine also targets Toll-like receptors, inhibits Toll-like receptor 2/4/7/8/9 signals, and inhibits LPS-induced IRAK1 activation, as well as ERK1/2, JNK and NF-κB activation, thereby exerting anti-inflammatory effects. Trimebutine also induces tumor cell apoptosis by inhibiting the AKT/ERK pathway. Trimebutine also inhibits excessive contraction of smooth muscle and can be used in the study of gastrointestinal disorders such as irritable bowel syndrome (IBS).