Bioactivity | PF-04995274 is a potent, high-affinity, orally active and partial serotonin 4 receptor (5-HT4R) agonist. PF-04995274 has an EC50 range of 0.26-0.47 nM for human 5-HT4A/4B/4D/4E (Ki range of 0.15-0.46 nM), and has an EC50 range of 0.59-0.65 nM for rat 5-HT4S/4L/4E (Ki of 0.30 nM for rat 5-HT4S). PF-04995274 is brain penetrant and can be used for cognitive disorders associated with Alzheimer's disease[1][2][3]. | ||||||||||||
Invitro | PF-04995274 has EC50 values of 0.47 nM, 0.36 nM, 0.37 nM, 0.26 nM, 0.59 nM, 0.65 nM and 0.62 nM for human 5-HT4A/4B/4D/4E and rat 5-HT4S/4L/4E, respectively. PF-04995274 has Ki values of 0.36 nM, 0.46 nM, 0.15 nM, 0.32 nM and 0.3nM for human 5-HT4A/4B/4D/4E and rat 5-HT4S, respectively[3]. | ||||||||||||
In Vivo | PF-04995274 (3-10 mg/kg; intravenous injection; for 17 days; male 129S6/SvEv mice) treatment results in prophylactic efficacy by attenuating learned fear and decreasing stress-induced depressive-like behavior[1]. Animal Model: | ||||||||||||
Name | PF-04995274 | ||||||||||||
CAS | 1331782-27-4 | ||||||||||||
Formula | C23H32N2O6 | ||||||||||||
Molar Mass | 432.51 | ||||||||||||
Appearance | Solid | ||||||||||||
Transport | Room temperature in continental US; may vary elsewhere. | ||||||||||||
Storage |
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Reference | [1]. Chen BK, et al. Prophylactic efficacy of 5-HT4R agonists against stress. Neuropsychopharmacology. 2019 Oct 10. [2]. Grimwood S, et al. Translational receptor occupancy for the 5-HT4 partial agonist PF-04995274 in rats, non-human primates and healthy volunteers. Alzheimer’s Dement: J Alzheimer’s Assoc. 2011;7:S653. [3]. Timothy Nicholas1, et al. Systems pharmacology modeling in neuroscience: Prediction and outcome of PF-04995274, a 5-HT4 partial agonist, in a clinical scopolamine impairment trial. Advances in Alzheimer's Disease. Vol.2 No.3(2013). |