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LP44

Cat. No. M7900
LP44 Structure
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Biological Activity

LP44 is a high affinity 5-HT7 receptor agonist. Ki = 0.22 nM. LP44 displays selectivity over 5-HT1A and 5-HT2A receptors (200- and >1000-fold, respectively). LP44 induces relaxation of substance P-stimulated guinea pig ileum (EC50 = 2.56 μM).

Chemical Information
Molecular Weight 488.13
Formula C27H38ClN3OS
CAS Number 824958-12-5
Solubility (25°C) DMSO: ≥10 mg/mL
Storage Powder          -20°C   3 years ;  4°C   2 years
In solvent       -80°C   6 months ;  -20°C   1 month
Conversion of different model animals based on BSA (PMID: 27057123)
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.

References

[1] Ilknur Calik, et al. LP44 (4-[2-(methylthio)phenyl]-N-(1,2,3,4-tetrahydronaphthalen-1-yl)-1-piperazinehexanamide) exerts anti-ulcer effects via 5-hydroxytryptamine receptor 7 activation on indomethacin-induced gastric ulcers in rats

[2] I Cinar, et al. The role of 5-HT7 receptors on isoproterenol-induced myocardial infarction in rats with high-fat diet exacerbated coronary endothelial dysfunction

[3] Tugba Nurcan Yuksel, et al. Protective effect of 5-HT7 receptor activation against glutamate-induced neurotoxicity in human neuroblastoma SH-SY5Y cells via antioxidative and antiapoptotic pathways

[4] Wu Gang, et al. The effect of the 5-HT7 serotonin receptor agonist, LP44, on micturition in rats with chronic spinal cord injury

[5] Jaime M Monti. Serotonin control of sleep-wake behavior

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