Development of Gleevec Analogues for Reducing Production of β-Amyloid Peptides through Shifting β-Cleavage of Amyloid Precursor Proteins
作者:Weilin Sun、William J. Netzer、Anjana Sinha、Katherina Gindinova、Emily Chang、Subhash C. Sinha
DOI:10.1021/acs.jmedchem.8b02007
日期:2019.3.28
Imatinib mesylate, 1a, inhibits production of β-amyloid (Aβ) peptides both in cells and in animal models. It reduces both the β-secretase and γ-secretase cleavages of the amyloid precursor protein (APP) and mediates a synergistic effect, when combined with a β-secretase inhibitor, BACE IV. Toward developing more potent brain-permeable leads, we have synthesized and evaluated over 75 1a-analogues. Several
甲磺酸伊马替尼1a在细胞和动物模型中均抑制β-淀粉样蛋白(Aβ)肽的产生。当与β-分泌酶抑制剂BACE IV组合使用时,它可以减少淀粉样蛋白前体蛋白(APP)的β-分泌酶和γ-分泌酶裂解,并发挥协同作用。为了开发更有效的透脑线索,我们已经合成和评估了75多个1a类似物。包括2a-b和3a-c在内的几种化合物抑制了Aβ肽的产生,并改善了细胞的活性。这些化合物与1a类似地影响APP的β-分泌酶裂解。当对5个月大的雌性小鼠给药(100mg / kg,每天两次经口强饲法)5天时,化合物2a显着降低了Aβ42肽的产生。化合物2a与BACE IV的组合也可降低细胞中的Aβ水平,超过两种化合物的累加效果。这些结果为使用1a类似物开发治疗阿尔茨海默氏病的方法开辟了新途径。