对阿尔茨海默氏病的APP选择性BACE1抑制剂的发现
Jesus Campagna1, Barbara Jagodzinska1, Dongwook Wi1
1Drug Discovery Lab (DDL), Department of Neurology, Easton Center for Alzheimer's Disease Research and Care, David Geffen School of Medicine, University of California, Los Angeles (UCLA), CA, 90095, USA.
概括
研究人员开发了一种新的APP选择性BACE1抑制剂FAH65E,用于阿尔茨海默病. 这种选择性抑制剂降低了粉样β水平,并改善了小鼠的记忆力,显示出作为一流口服疗法的前景.
科学领域:
- 神经科学是一个神经科学.
- 药理学 药理学是指药理学的学科.
- 生物化学 生物化学
背景情况:
- 阿尔茨海默病 (AD) 的治疗方法有针对性地抑制β位分裂酶1 (BACE1).
- 以前的非选择性BACE1抑制剂在临床试验中由于异于目标效应而失败.
- 为BACE1的粉样前体蛋白 (APP) 基质开发选择性抑制剂至关重要.
研究的目的:
- 为了识别和描述新的APP选择性BACE1 (ASBI) 抑制剂.
- 在AD的临床前模型中评估主要候选药物FAH65E的疗效.
- 评估FAH65E的潜力,作为AD的第一类口服疗法.
主要方法:
- 使用MBP结合APPC125基质选BACE1抑制剂的化合物库.
- 对氨基antoin (FAH) 抑制剂的优化成功开发了FAH65.5.
- 在体外测试以确定对其他BACE1基质和蛋白酶的选择性.
- 在细胞和动物模型中进行体外和体外研究,以测量BACE1裂变产物 (sAPPβ,βCTF,Aβ).
- 在小鼠AD模型中使用新物体识别 (NOR) 测试评估认知功能.
主要成果:
- 在其他BACE1基质 (NRG1,PSGL1) 和蛋白酶 (Cat D,BACE2) 上,FAH65对APP裂变表现出选择性.
- FAH65E (((-) 在体外和体内降低了sAPPβ,βCTF,Aβ40和Aβ42的水平.
- FAH65E(-) 在AD的小鼠模型中提高了记忆性能.
- FAH65E(-) 显示出良好的脑透和目标接触.
结论:
- FAH65E (((-) 是一种强效和选择性的ASBI,具有前临床有效性的前临床有效性.
- 该化合物可以克服非选择性BACE1抑制剂的局限性.
- FAH65E(-) 是一种潜在的第一类口服治疗阿尔茨海默病的药物,可能与抗体治疗结合使用.
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