MMPIP is an allosteric metabotropic glutamate receptor 7 (mGluR7) selective antagonist (K_B values 24 -30 nM). MMPIP acts as a pharmacological tool for elucidating the roles of mGluR7 on central nervous system functions. MMPIP alleviates pain and normalizes affective and cognitive behavior in neuropathic mice^[1][2].

MMPIP inhibits L-(+)-2-amino-4-phosphonobutyric acid (L-AP4; 0.5 mM)-induced intracellular Ca²⁺ mobilization in Chinese hamster ovary (CHO) cells coexpressing rat mGluR7 with G_α15 (IC5₅₀=26 nM) ^[1].
In CHO cells expressing rat mGluR7, MMPIP inhibits L-AP4-induced inhibition of forskolin-stimulated cAMP accumulation (IC₅₀ 220 nM)^[1].
MMPIP also antagonizes L-AP4-induced inhibition of cAMP accumulation with an IC₅₀ of 610 nM in CHO-human mGluR7/G_α15^[1].

MCE has not independently confirmed the accuracy of these methods. They are for reference only.

MMPIP (10 mg/kg) attenuates the amplitude of the acoustic startle response and markedly enhances the prepulse-induced inhibition of the acoustic startle response (up to 137% of control)^[2].
MMPIP (10 mg/kg) rescues the MK-801 (0.1 mg/kg)-induced cognitive impairments, by improving the choice accuracy^[2].
Zamifenacin exhibits short elimination half-lives (plasma 1.16 h, brain 1.75 h) following i.p. administration (10 mg/kg) in mice^[2].

MCE has not independently confirmed the accuracy of these methods. They are for reference only.

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C₁₉H₁₅N₃O₃

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• [1]. Gentaroh Suzuki, et al. In vitro pharmacological characterization of novel isoxazolopyridone derivatives as allosteric metabotropic glutamate receptor 7 antagonists. J Pharmacol Exp Ther. 2007 Oct;323(1):147-56.  [Content Brief]

  [2]. Paulina Cie?lik, et al. Negative Allosteric Modulators of mGlu 7 Receptor as Putative Antipsychotic Drugs. Front Mol Neurosci. 2018 Sep 20;11:316.  [Content Brief]