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Ketanserin

CAS No. : 74050-98-9

產(chǎn)品活性：Ketanserin is a selective 5-HT2 receptor antagonist. Ketanserin also blocks hERG current (I_hERG) in a concentration-dependent manner (IC₅₀=0.11 μM).

研究領(lǐng)域：GPCR/G Protein  |  Neuronal Signaling  |  Membrane Transporter/Ion Channel  |  Autophagy

作用靶點：5-HT Receptor  |  Potassium Channel  |  Autophagy

In Vitro: Ketanserin at 0.3 μM inhibits the voltage-dependent step current (I_hERG.step) and tail current (I_hERG.tail) of hERG channels with a 5-min exposure. The synergistic effect observed for AA with 5-HT is, also, blocked by the 5-HT receptor blockers cyproheptadine (IC₅₀=22.0±7 μM), Ketanserin (IC₅₀=152±23 μM). Ketanserin (50-350 μM) inhibits the synergism by blocking the receptor in a dose-dependent manner. The IC₅₀ value of Cyproheptadine is 22±7 μM and Ketanserin is 152±23 μM. Ketanserin inhibits platelet aggregation with an IC₅₀ of 240 (169-339) nM.

In Vivo: Ketanserin is a 5-HT2A receptor antagonist. Ketanserin significantly reduces BDNF protein levels in numerous brain regions (CA1 and CA3 of the hippocampus, prefrontal cortex, central amygdaloid nucleus, dorsomedial hypothalamic nucleus, dentate gyrus, shell of the nucleus accumbens and midbrain periaqueductal gray). 5-HT_2A antagonist Ketanserin can significantly reduce BDNF mRNA levels in various brain regions.

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