In vitro: ICA-069673 is found to be 20-fold selective for KCNQ2/Q3 over KCNQ3/Q5 and has no measurable activity against a panel of cardiac ion channels (IC50 values > 30 μM for hERG, Nav1.5, L type channels, and KCNQ1) as well as no activity on GABA(A) gated channels at 10 μM. ICA-069673 exhibits much stronger effects on KCNQ2 channels, including a large hyperpolarizing shift of the voltage-dependence of activation, an 2-fold enhancement of peak current and pronounced subtype specificity for KCNQ2 over KCNQ3. Based on ICA73 sensitivity of chimeric constructs of the transmembrane segments of KCNQ2 and KCNQ3, this drug appears to interact with the KCNQ2 voltage sensor (S1-S4).
Cell Experiment | |
---|---|
Cell lines | DSM cells |
Preparation method | For the first protocol, continuous stimulation of 10-Hz EFS frequency was delivered at 1-minute intervals and a stable baseline and amplitude were reached prior to applying increasing concentrations of ICA-069673 (100 nM–30 µM). In the second EFS protocol, we applied incremental EFS stimulation frequencies (3.5, 5, 7.5, 10, 12.5, 15, 20, 30, 40, and 50 Hz) at 3-minute intervals for a control period, and then again in the presence of a single concentration of ICA-069673 (either 3 or 10 µM). |
Concentrations | 100 nM–30 µM |
Incubation time |
Animal Experiment | |
---|---|
Animal models | |
Formulation | |
Dosages | |
Administration |
Molecular Weight | 269.63 |
Formula | C11H6ClF2N3O |
CAS Number | 582323-16-8 |
Solubility (25°C) | ≥ 34 mg/mL in DMSO |
Storage |
Powder -20°C 3 years ; 4°C 2 years In solvent -80°C 6 months ; -20°C 1 month |
Species | Mouse | Rat | Rabbit | Guinea pig | Hamster | Dog |
Weight (kg) | 0.02 | 0.15 | 1.8 | 0.4 | 0.08 | 10 |
Body Surface Area (m2) | 0.007 | 0.025 | 0.15 | 0.05 | 0.02 | 0.5 |
Km factor | 3 | 6 | 12 | 8 | 5 | 20 |
Animal A (mg/kg) = Animal B (mg/kg) multiplied by | Animal B Km |
Animal A Km |
For example, to modify the dose of Compound A used for a mouse (20 mg/kg) to a dose based on the BSA for a rat, multiply 20 mg/kg by the Km factor for a mouse and then divide by the Km factor for a rat. This calculation results in a rat equivalent dose for Compound A of 10 mg/kg.
Related Potassium Channel Products |
---|
NPBA
NPBA is a potassium K2P channel TASK-3 (KCNK9) agonist and a tandem pore domain weak inward rectifier K+ channel (TWIK2) channel blocker. In addition, NPBA inhibits the activation of NLRP3 inflammasome in macrophages. |
BeKm-1
BeKm-1 is a HERG (human ether-a-go-go-related gene) blocking compound. |
Apamin
Apamin (Apamine) is a specifically selective blocker of Ca2+-activated K+ (SK) channels and exhibits anti-inflammatory and anti-fibrotic activity. |
Phe-Met-Arg-Phe amide trifluoroacetate
Phe-Met-Arg-Phe amide trifluoroacetate is an activator of K+ current, with ED50 of 23 nM in the peptidergic caudodorsal neurons. |
Iberiotoxin
Iberiotoxin is a toxin isolated from Buthus tamulus scorpion venom. |
Products are for research use only. Not for human use. We do not sell to patients.
© Copyright 2010-2023 AbMole BioScience. All Rights Reserved.