作者:Karunakaran A. Kalesh、Kai Liu、Shao Q. Yao
DOI:10.1039/b913333j
日期:——
Protein kinases catalyze the phosphorylation of serine, threonine, tyrosine and histidine residues in proteins. Aberrant regulation of kinase activity has been implicated in many diseases including cancer. Thus development of new strategies for kinase inhibitor design remains an active area of research with direct relevance to drug development. Abelson (Abl) tyrosine kinase is one of the Src-family of tyrosine kinases and is directly implicated in Chronic Myelogenous Leukemia (CML). In this article, we have, for the first time, developed an efficient method for the construction of small molecule-based bisubstrate inhibitors of Abl kinase using click chemistry. Subsequent biochemical screenings revealed a set of moderately potent inhibitors, a few of which have comparable potency to Imatinib (an FDA-approved drug for treatment of chronic myeloid leukemia) against Abl.
蛋白激酶催化蛋白质中丝氨酸、苏氨酸、酪氨酸和组氨酸残基的磷酸化。激酶活性的异常调节与包括癌症在内的多种疾病有关。因此,激酶抑制剂设计新策略的开发仍然是一个活跃的研究领域,与药物开发直接相关。阿贝尔森(Abl)酪氨酸激酶是 Src 家族酪氨酸激酶之一,与慢性骨髓性白血病(CML)直接相关。在这篇文章中,我们首次利用点击化学方法开发出了一种构建基于小分子的 Abl 激酶双底物抑制剂的有效方法。随后的生化筛选发现了一组中等效力的抑制剂,其中一些抑制剂对 Abl 的效力可与伊马替尼(美国 FDA 批准用于治疗慢性髓性白血病的药物)相媲美。