Identification of pyrazine-based TrkA inhibitors: design, synthesis, evaluation, and computational modeling studies
作者:Brendan Frett、Nick McConnell、Yuanxiang Wang、Zhigang Xu、Andrew Ambrose、Hong-yu Li
DOI:10.1039/c4md00251b
日期:——
Trk receptors play a key role in the development and maintenance of neuronal networks. Recent evidence suggests that the Trk family, specifically TrkA, is an important driver for tumour growth, inflammatory and neuropathic pain, and chemoresistance. Through a computational screen, a novel Trk active pharmacophore was identified and a series of pyrazine-based inhibitors were developed, which potently inhibited TrkA. Inhibitors displayed the highest activity on TrkA when screened against a small, tyrosine kinase panel and also exhibited a non-linear SAR. Predicted binding modes of the inhibitors were examined, which identified exploitable regions for future development of more advanced inhibitors.
Trk受体在神经网络的发育和维持中起着关键作用。最近的证据表明,Trk家族,特别是TrkA,是肿瘤生长、炎症性和神经病理性疼痛以及化疗耐药的重要驱动因素。通过计算筛选,发现了一个新型的Trk活性药效团,并开发了一系列以吡嗪为基础的抑制剂,这些抑制剂对TrkA具有强效抑制作用。在针对一小型酪氨酸激酶面板进行筛选时,这些抑制剂显示出在TrkA上的最高活性,并且表现出非线性的结构活性关系(SAR)。还检查了抑制剂的预测结合模式,识别出未来开发更先进抑制剂的可利用区域。