2'MeO6MF

2'MeO6MF is a brain-penetrant positive allosteric modulator at α2β1γ2L and all α1-containing GABAA receptors. 2'MeO6MF also can directly activate α2β2/3 and α2β2/3γ2L GABAA receptors. 2'MeO6MF has anxiolytic and sedative effects. 2'MeO6MF offers neuroprotection and improved functional recovery and dampens the stroke-induced inflammatory response[1][2].

Research Areas >> Inflammation/Immunology

Signaling Pathways >> Membrane Transporter/Ion Channel >> GABA Receptor

Research Areas >> Neurological Disease

Signaling Pathways >> Neuronal Signaling >> GABA Receptor

GABAA receptor[1]

2'MeO6MF (100-300 µM; 60 min) weakly displaces [3H]-flunitrazepam binding to rat brain synaptosomal membranes by 5-10%. 2'MeO6MF enhances [3H]-muscimol binding to rat brain synaptic membranes in a concentration-dependent manner yielding a mean Emax of 219.8% and apparent EC50=20.8 nM[1]. 2'MeO6MF (1-300 µM) enhances the response elicited by a low concentration of GABA in a concentration-dependent manner at recombinant α1β2γ2L GABAA receptors expressed in XenopusM oocytes. 2'MeO6MF enhances the response elicited by GABA at recombinant α1β1,3γ2L and α1β2 GABAA receptors without any direct activation[1]. 2'MeO6MF (1-10 µM; 60 min) increases tonic inhibitory currents in a concentration-dependent manner in granule cells[2]. 2'MeO6MF (100-1000 µM; 6.5 h) inhibits the LPS-induced increase of NFkB activity in RAWblueTM macrophage cells[2].

2'MeO6MF (1-100 mg/kg; i.p.) displays anxiolytic-like effects in the elevated plus maze and light/dark tests. 2'MeO6MF induces sedative effects at higher doses in the holeboard, actimeter and barbiturate-induced sleep time tests[1]. 2'MeO6MF (30 mg/kg; i.p.) increases tonic currents in layer 2/3 pyramidal neurons of mice after stroke[2]. 2'MeO6MF (0.1-30 mg/kg; i.p.) is neuroprotective and enhances functional recovery after focal cerebral ischaemia in mice[2]. Animal Model: Male Balb-c mice (8-10 weeks, 25-35 g)[1] Dosage: 1, 10, 30, 100 mg/kg Administration: I.p. Result: No overt acute toxicity was observed. Exerted anxiolytic effects at low doses and sedative effects at high doses without myorelaxant effects.

[1]. Karim N, et, al. 2'-Methoxy-6-methylflavone: a novel anxiolytic and sedative with subtype selective activating and modulating actions at GABA(A) receptors. Br J Pharmacol. 2012 Feb;165(4):880-96.

[2]. Clarkson AN, et, al. The flavonoid, 2'-methoxy-6-methylflavone, affords neuroprotection following focal cerebral ischaemia. J Cereb Blood Flow Metab. 2019 Jul;39(7):1266-1282.