BPU-11 is a hyperpolarization-activated cyclic nucleotide-gated (HCN) C-linker pocket (CLP) HCN4 CLP ligand. BPU-11 can be used for the research of congenital immune disease[1].
Ivabradine is a potent and orally active HCN (hyperpolarization-activated cyclic nucleotide-gated) channel blocker that inhibits the cardiac pacemaker current (If). Ivabradine reduces dose-dependently heart rate without modification of blood pressure. Ivabradine shows anticonvulsant, anti-ischaemic and anti-anginal activity[1][2][3][4].
Zatebradine(UL-FS49) is a potent HCN channels antagonist, which decreased the heartbeat in a reversible manner; 92% inhibition of the hHCN1-mediated current at 10 uM.IC50 value: 10 uM(92% 92% inhibition of the hHCN1) [1]Target: hHCN channel antagonistThe pharmacological properties of hHCN1-mediated currents resembled those of native hyperpolarization-activated currents (I(h)), that is, blockade by Cs(+) (99% at 5 mm), ZD 7288 (98% at 100 microm) and zatebradine (92% at 10 microm) [1]. When voltage-clamp pulse trains were applied, cilobradine induced a use-dependent blockade of If that was stronger and faster than that with zatebradine. Recovery from blockade during prolonged hyperpolarization was significantly faster with zatebradine [2]. The selective HCN blocker zatebradine reduced the activity of oriens-lacunosum moleculare interneurons in wild-type but not HCN2(-/-) mice and decreased the frequency of spontaneous inhibitory currents in postsynaptic CA1 pyramidal cells [3].
ZD7288 is a selective hyperpolarization-activated cyclic nucleotide-gated (HCN) channel blocker.
Cilobradine is an HCN Channel blocker; an open channel blocker of neuronal Ih and related cardiac If channels.Target: HCN Channel blockerCilobradine is a HCN channel blocker that is about 3 times more potent than ZD7288. At a concentration of 10 μM, Cilobradine inhibits WT mHCN2 channel current by 86 ± 2% (n = 5). In contrast, I432A and A425G channel currents were only reduced by 14 ± 1% (n = 4) and 19 ± 2% (n = 8), respectively, by this concentration of Cilobradine. The double mutant (I432A/A425G) channel was even less sensitive to 10 μM Cilobradine (8 ± 2% inhibition; n = 4).
Zatebradine(UL-FS49) Hcl is a potent HCN channels antagonist, which decreased the heartbeat in a reversible manner; 92% inhibition of the hHCN1-mediated current at 10 uM.IC50 value: 10 uM(92% 92% inhibition of the hHCN1) [1]Target: hHCN channel antagonistThe pharmacological properties of hHCN1-mediated currents resembled those of native hyperpolarization-activated currents (I(h)), that is, blockade by Cs(+) (99% at 5 mm), ZD 7288 (98% at 100 microm) and zatebradine (92% at 10 microm) [1]. When voltage-clamp pulse trains were applied, cilobradine induced a use-dependent blockade of If that was stronger and faster than that with zatebradine. Recovery from blockade during prolonged hyperpolarization was significantly faster with zatebradine [2]. The selective HCN blocker zatebradine reduced the activity of oriens-lacunosum moleculare interneurons in wild-type but not HCN2(-/-) mice and decreased the frequency of spontaneous inhibitory currents in postsynaptic CA1 pyramidal cells [3].