Тетрабеназин

Химические свойства

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Использование

Tetrabenazine has been used for dopamine uptake assays in mouse brain cells¹. Tetrabenazine has also been used for non-specific binding assays in postnuclear supernatants derived from PC-12 and CV-1 cells².

Определение

ChEBI: A benzoquinolizine that is 1,2,3,4,4a,9,10,10a-octahydrophenanthrene in which the carbon at position 10a is replaced by a nitrogen and which is substituted by an isobutyl group at position 2, an oxo group at position 3, and methoxy groups at positions 6 an 7.

Общее описание

A cell permeable benzoquinolizine based compound that acts as a monoamine-depleting agent by blocking the activity vesicular monoamine transporter 2. Promotes late-stage differentiation of Pdx1-positive pancreatic progenitor cells into Neurog3 (Ngn3)-positive endocrine precursors without increasing their proliferation. Increases the number of insulin expressing cells in a dose dependent manner (EC₅₀ = 220 nM) and this effect is significantly enhanced when cells are simultaneously treated with dibutyryl cAMP. Embryonic stem cells treated with TBZ and/or dibutyryl cAMP and then grafted into kidney capsule of AKITA mice reduce hyperglycemia, improve fasting blood glucose levels, and show an increase in plasma C-peptide levels.

Биологическая активность

Potent inhibitor of vesicular monoamine uptake; depletes stores of dopamine, serotonin and noradrenalin. Binds with high affinity (IC 50 = 3.2 nM) to vesicular monoamine transporter (VMAT) in chromaffin granule membranes and displays higher affinity for VMAT2 than VMAT1. Also reported to block dopamine receptors. Causes behavioral depression; inhibits locomotor activity and produces hypothermia upon systemic administration in rats and mice.

Методы очистки

Crystallise it from MeOH. The hydrochloride has m 208-210o, and the oxime has m 158o (from EtOH). [Beilstein 21 III/IV 6488.]