A potent, selective peptide inhibitor of hERG channel with IC50 of 3.3 nM for hERG1 channels; displays no effect at 100 nM on hEAG, hSK1, rSK2, hIK, hBK, KCNQ1/KCNE1, KCNQ2/KCNQ3, KCNQ4 channels, and minimal effect on rELK1; prolongs QTc intervals significantly and concentration-dependently (4.7 and 16.3% at 10 and 100 nM, respectively).
1-Octanol-d2 is the deuterium labeled 1-Octanol[1]. 1-Octanol (Octanol), a saturated fatty alcohol, is a T-type calcium channels (T-channels) inhibitor with an IC50 of 4 μM for native T-currents[2]. 1-Octanol is a highly attractive biofuel with diesel-like properties[3].
α-Conotoxin Im-I is a selective α7/α9 nAChR antagonist, blocking α7 nicotinic receptors with the highest apparent affinity, while having an 8-fold lower affinity for homomeric α9 nicotinic receptors. α-Conotoxin Im-I is toxic and induces seizures in rodents. α-Conotoxin Im-I is a tool for studying neuronal nAChR[1][2].
Paxilline is an indole alkaloid mycotoxin from Penicillium paxilli, acts as a potent BK channels inhibitor by an almost exclusively closed-channel block mechanism. Paxilline also inhibits the sarco/endoplasmic reticulum Ca2+ ATPase (SERCA) with IC50s between 5μM and 50μM for differing isoforms. Paxilline possesses significant anticonvulsant activity[1][2][3].
URAT1&XO inhibitor 2 (Compound BDEO) is a dual inhibitor of xanthine oxidase and URAT1, with IC50 of 3.3 μM for xanthine oxidase. URAT1&XO inhibitor 2 blocks uptake of uric acid in HEK293 cells expressing URAT1, with a Ki value of 0.145 μM. URAT1&XO inhibitor 2 decreases serum urate level and uric acid excretion in hyperuricemic mice. URAT1&XO inhibitor 2 can be used for research of hyperuricemia[1].
Mifamurtide(CGP19835; MTP-PE) is a drug against osteosarcoma.Target: OthersMifamurtide is an immunomodulator with antitumor effects that appear to be mediated via activation of monocytes and macrophages. Mifamurtide is generally well tolerated; adverse events attributed to administration of the drug include chills, fever, headache, nausea, and myalgias. Based on the available data, mifamurtide can be considered for inclusion in treatment protocols for localized osteosarcoma [1]. Mifamurtide has orphan drug status for the treatment of osteosarcoma in the US and EU [2].
nAChR-IN-1 (hydrochloride) is a tetramethylpiperidine heptanoate, a selective nicotinic acetylcholine receptor (nAChR) inhibitor that inhibits nAChRs lacking α5, α6, or β3 subunits. nAChR-IN-1 has the effect of preventing nerve disorder, can be used for nicotinic acetylcholine receptor dysfunction or neurological disorders research[1].
N20C hydrochloride is a selective and noncompetitive open NMDA receptor open channel blocker, with micromolar affinity, fast on-off blockade kinetics, and strong voltage dependence. Neuroprotective activity[1].
FR183998 free base is a potent Na+/H+-exchange inhibitor, with IC50s of 0.3 nM, 3.1 nM and 6.5 nM by measurement of pHi change in rat lymphocytes, rat and human platelets, respectively.
Picrotoxinin, a potent convulsant, is a chloride channel blocker. Picrotoxinin is a noncompetitive GABAA receptor antagonist, which negatively modulates the action of GABA on GABAA receptors[1].
Flupirtine(D 9998) is a selective neuronal potassium channel opener that also has NMDA receptor antagonist properties.IC50 Value: Target: Potassium channel; NMDA receptorin vitro: High concentrations of flupirtine antagonized inward currents to NMDA(200 microM) at -70 mV with an lC50 against steady-state responses of 182.1+/-12.1 microM. The effects of flupirtine were voltage-independent and not associated with receptor desensitization making actions within the NMDA receptor channel or at the glycine modulatory site unlikely. NMDA receptor antagonism probably has little relevance for the clinical efficacy of flupirtine as the concentrations needed were far higher than those achieved in clinical practice. However, the activation of a G-protein-regulated inwardly rectifying K+ channel was identified as an interesting molecular target site of flupirtine. In the next stage, the central nervous spectrum of action of experimental K+ channel openers (PCO) was considered. As far as they have been studied, experimental K+ channel openers display a spectrum of action comparable to that of flupirtine [1]. Therapeutic flupirtine concentrations (≤10 ?M) did not affect voltage-gated Na(+) or Ca(2+) channels, inward rectifier K(+) channels, nicotinic acetylcholine receptors, glycine or ionotropic glutamate receptors. Flupirtine shifted the gating of K(V)7 K(+) channels to more negative potentials and the gating of GABA(A) receptors to lower GABA concentrations [2]. Cell exposure to flupirtine decreased the amplitude of delayed rectifier K(+) current (I(K(DR))) with a concomitant raise in current inactivation in NSC-34 neuronal cells [4].in vivo: Rats were trained to discriminate the novel analgesic flupirtine (10.0 mg/kg i.p., 10 min) from no drug under a two-choice fixed-ratio 5 shock-termination schedule. Flupirtine yielded a dose-response curve with an ED50 of 3.87 mg/kg. The opioid analgesics pentazocine, codeine and tramadol failed to produce flupirtine appropriate responding. The opioid antagonist naltrexone did not antagonize the discriminative effects of flupirtine [3]. Both morphine (ED?? =?0.74?mg/kg) and flupirtine (ED???=?3.32?mg/kg) caused dose-related anti-hyperalgesia at doses that did not cause sedation [5]. Toxicity: Based on study-end data, hepatotoxicity was detected in 31% of patients receiving flupirtine for ≥ 6 weeks [6].
OY-101 is an orally active, potent and specific P-glycoprotein (P-gp) inhibitor. OY-101 can sensitize drug-resistant tumors and effectively reverse tumor multidrug resistance. OY-101 is improvements in water-solubility, cytotoxicity, and reversal activity compared to Tetrandrine (HY-13764)[1].
NS1738 is a novel positive allosteric modulator of the α7 nAChR, with respect to positive modulation of α7 nAChR (EC50=3.4 μM in oocyte experiments).
Licogliflozin is a sodium glucose cotransporter (SGLT1 and SGLT2) inhibitor.
Sodium dichloroacetate is a metabolic regulator in cancer cells' mitochondria with anticancer activity. Sodium dichloroacetate inhibits PDHK, resulting in decreased lactic acid in the tumor microenvironment. Sodium dichloroacetate increases reactive oxygen species (ROS) generation and promotes cancer cell apoptosis. Sodium dichloroacetate also works as NKCC inhibitor[1].
(R)-IDHP is an isomer of IDHP, a salvia metabolite that exerts vasorelaxant effects by inhibiting Ca2+ release and Ca2+ inward flow in voltage-dependent and receptor-operated calcium channels in vascular smooth muscle cells. IDHP is used in studies of cardiovascular disease[1].
T16A(inh)-C01 is an inhibitor of TMEM16A (ANO1). T16A(inh)-C01 blocks chloride channel mediated by ANO1 with an IC50 of 8.4 μM, without interfering with calcium signaling[1].
Vernakalant(RSD-1235) is an investigational mixed ion channel blocker that can terminate acute atrial fibrillation (AF) in humans at 2 to 5 mg/kg and may be more atrial-selective than available agents; in treatment of antiarrhythmic.IC50 value:Target:
Mambalgin 1 is a selective ASIC1a inhibitor (IC50 values are 192 and 72 nM for human ASIC1a and ASIC1a/1b dimer, respectively). Mambalgin 1 binds to closed/inactive channel. Mambalgin 1 is selective for ASIC1a over ASIC2a, ASIC3, TRPV1, P2X2, 5-HT3, Nav1.8, Cav3.2 and Kv1.2 channels. Mambalgin 1 increases latency of withdrawal response in mouse tail-flick and paw-flick tests.
P2X7 receptor antagonist-2 is a potent P2X7 receptor antagonist with a pIC50 value of 6.5-7.5. P2X7 receptor antagonist-2 has efficacy of combating neuroinflammation[1].
Flecainide is a potent and orally active antiarrhythmic agent. Flecainide blocks the cardiac fast inward Na+ current (INa) and the rapid component of the delayed rectifier K+ current. Flecainide prolongs the action potential duration (APD) in ventricular and atrial muscle fibres. Flecainide has the potential for the research of fetal tachycardias[1][2][3].
TFB-TBOA (CF3-Bza-TBOA) is a potent glutamate transporter blocker that potently suppresses the activity of glial transporters. TFB-TBOA shows IC50 values of 22, 17, and 300 nM for glutamate transporters EAAT1, EAAT2, and EAAT3 respectively in an uptake assay using cells transiently expressing EAATs[1].
MIDD0301 is a potent, positive allosteric, α5β3γ2 selective, GABAA receptor (GABAAR) ligand with EC50 of 17 nM, shows no significant binding at the peripheral GABAAR at 10 uM; causes amplification of GABA induced current mediated by α1-3,5β3γ2 GABAARs in the presence of MIDD0301 in automated patch clamp test; relaxes airway smooth muscle at single micromolar concentrations as demonstrated with ex vivo guinea pig tracheal rings, also attenuates airway hyperresponsiveness (AHR) in an ovalbumin murine model of asthma by oral administration, with low brain distribution; reduces lung cytokine expression of IL-17A, IL-4, and TNF-α, as wells as the number of CD4+ T cells.
N-Arachidonoyl-GABA is one member of a new class of lipoamino acids related to anandamide identified in bovine brain. N-Arachidonoyl-GABA displays analgesic activity[1].
nAChR-IN-1 (2,2,6,6-Tetramethylpiperidin-4-yl heptanoate) is a tetramethylpiperidine heptanoate, a selective nicotinic acetylcholine receptor (nAChR) inhibitor that inhibits nAChRs lacking α5, α6, or β3 subunits. nAChR-IN-1 has the effect of preventing nerve disorder, can be used for nicotinic acetylcholine receptor dysfunction or neurological disorders research[1].
Unifiram (DM232) is acts as a potent cognition enhancer through the activation of the AMPA-mediated neurotransmission system. Unifiram (DM232) has the potential for amnesia prevention and neurodegenerative disorder research[1][2].
PE 22-28 is a TREK-1 inhibitor with IC50 value of 0.12 nM. PE 22-28 also is a 7 amino-acid peptide that is used as a core sequence for preparing analogs by chemical modifications and also by substitution of amino-acids. PE 22-28 can be used for the research of depression[1].
FD 12-9 is a flavonoid dimer, acts as a dual inhibitor of P-gp and BCRP, with EC50s of 285 nM and 0.9 nM, respectively. Anti-glioblastoma activity[1].
Naluzotan is a novel, potent, and selective amidosulfonamide 5-HT1A agonist with IC50 and Ki of appr 20 nM and 5.1 nM, used for the treatment of anxiety and depression; Also a weak hERG K+ channel blocker, with IC50 of 3800 nM.
Traxoprodil (CP101,606) is a potent and selective NMDA antagonist and protect hippocampal neurons with an IC50 of 10 nM.