MMPIP hydrochloride is a selective antagonist of allosteric mGluR7. MMPIP hydrochloride can be used in research on the roles of mGluR7 on central nervous system functions.

In CHO cells coexpressing rat mGluR7 with Gα15, MMPIP hydrochloride inhibits L-(+)-2-amino-4-phosphonobutyric acid (L-AP4; 0.5 mM)-induced intracellular Ca2+ mobilization with an IC50 of 26 nM. MMPIP hydrochloride also antagonizes L-AP4-induced inhibition of cAMP accumulation with an IC50 of 610 nM. MMPIP hydrochloride inhibits L-AP4-induced inhibition of forskolin-stimulated cAMP accumulation in CHO cells expressing rat mGluR7[1].

MMPIP hydrochloride alleviates pain and normalizes affective and cognitive behavior in neuropathic mice. MMPIP hydrochloride (10 mg/kg; i.p.) rescues the MK-801 (0.1 mg/kg)-induced cognitive impairments, by improving the choice accuracy. MMPIP hydrochloride (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].