New classes of PDE7 inhibitors identified by a fission yeast-based HTS.

New classes of PDE7 inhibitors identified by a fission yeast-based HTS.
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DOI:
10.1177/1087057110362100
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发表时间:
2010-04
影响因子:
--
通讯作者:
Hoffman CS
Hoffman CS
中科院分区:
化学3区
文献类型:
--
作者:
Alaamery MA;Wyman AR;Ivey FD;Allain C;Demirbas D;Wang L;Ceyhan O;Hoffman CS

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由于只有一种市售 PDE7 抑制剂 BRL50481,磷酸二酯酶 PDE7 家族的研究受到阻碍。我们采用了商业化学文库的高通量筛选,使用基于裂变酵母的测定法来鉴定 PDE7 抑制剂,其中包括类固醇、罗汉松和一种不常见的杂环化合物 BC30。与 BRL50481 相比,测量 BC30 和两种罗汉松功效的体外酶测定产生的数据与基于酵母的测定一致。在其他酶测定中,BC30 刺激 PDE4D 催化结构域,但不刺激全长 PDE4D2,表明存在变构作用位点。通过激活单核细胞释放 TNFα 来测量,BC30 显着增强 PDE4 抑制剂咯利普兰的抗炎作用。这些研究介绍了几种新的 PDE7 抑制剂,由于基于酵母的筛选的性质对药物样特性的要求,这些抑制剂可能是药物化学的优秀候选者。
Studies of the phosphodiesterase PDE7 family are impeded by there being only one commercially-available PDE7 inhibitor, BRL50481. We have employed a high throughput screen of commercial chemical libraries, using a fission yeast-based assay, to identify PDE7 inhibitors that include steroids, podocarpanes, and an unusual heterocyclic compound, BC30. In vitro enzyme assays measuring the potency of BC30 and two podocarpanes, in comparison with BRL50481, produce data consistent with those from yeast-based assays. In other enzyme assays, BC30 stimulates the PDE4D catalytic domain, but not full-length PDE4D2, suggesting an allosteric site of action. BC30 significantly enhances the anti-inflammatory effect of the PDE4 inhibitor rolipram as measured by release of TNFα from activated monocytes. These studies introduce several new PDE7 inhibitors that may be excellent candidates for medicinal chemistry due to the requirements for drug-like characteristics placed on them by the nature of the yeast-based screen.
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