BX430 是一种有效的选择性非竞争性变构人 P2X4 受体通道拮抗剂，IC50 为 0.54 μM。它具有物种特异性，可用于治疗慢性疼痛和心血管疾病。

BX430 is used for chronic pain and cardiovascular disease and it is a potent and selective noncompetitive allosteric human P2X4 receptor channels antagonist with an IC50 of 0.54 μM. BX430 has species specificity.

BX430, with submicromolar potency (IC50 = 0.54 M). BX430 is highly selective, having virtually no functional impact on all other P2X subtypes, namely, P2X1-P2X3, P2X5, and P2X7, at 10-100 times its IC50.?Unexpected species differences were noticed, as BX430 is a potent antagonist of zebrafish P2X4 but has no effect on rat and mouse P2X4 orthologs.?The concentration-response curve for ATP on human P2X4 in the presence of BX430 shows an insurmountable blockade, indicating a noncompetitive allosteric mechanism of action.?Using a fluorescent dye uptake assay, we observed that BX430 also effectively suppresses ATP-evoked and ivermectin-potentiated membrane permeabilization induced by P2X4 pore dilation.?Finally, in single-cell calcium imaging, we validated its selective inhibitory effects on native P2X4 channels at the surface of human THP-1 cells that were differentiated into macrophages.?In summary, this ligand provides a novel molecular probe to assess the specific role of P2X4 in inflammatory and neuropathic conditions, where ATP signaling has been shown to be dysfunctional[1].

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C15H15Br2N3O

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DMSO:10 mM
Powder: -20°C for 3 years
In solvent: -80°C for 2 years