in cells expressing APP β-C terminal fragment (APP-C99), suggesting that the kinase inactive analogues strongly affect β-secretase (BACE1) cleavage of APP, similarly to Gleevec. A combination of the kinase inactive analogues of PD173955 with a BACE1 inhibitor (BACEi), namely, BACE IV, strongly reduced Aβ levels in cells, as noted previously with Gleevec and analogues. Several potent compounds also penetrated
化合物3A,DV2-103,是一种有效的ABL1 /的Src的激酶失活类似物激酶
抑制剂,PD173955,2。两种化合物,2和3a中已知在细胞和动物模型中减少β淀粉样蛋白(Aβ)肽的产生。我们现在已经准备并评估了一系列PD-173955类似物,其中一些有效地降低了Aβ的产生。这种情况发生在表达人全长淀粉样蛋白前体蛋白(APP)的细胞中,而不发生在表达APPβ-C末端片段的细胞(APP-C99)中,这表明该激酶失活的类似物强烈影响APP的β-分泌酶(
BACE1)切割,与格列卫类似。PD173955的激酶失活类似物与
BACE1
抑制剂(
BACEi)(即
BACE IV)的结合,可大大降低细胞中的Aβ
水平,如之前使用格列卫和类似物所指出的。几种有效的化合物也以高纳摩尔至低微摩尔浓度渗透并积聚在小鼠脑中。