发现和评估新的SHIP-1抑制剂
Jinmin Miao1, Jianping Lin1, Jiajun Dong1
1Borch Department of Medicinal Chemistry and Molecular Pharmacology, Purdue University, West Lafayette, IN 47907, USA.
Bioorganic & medicinal chemistry
|October 25, 2024
概括
研究人员确定了SHIP-1的新型抑制剂,该基因与阿尔茨海默病风险有关. 化合物SP3-12增强了微细胞化,通过向SHIP-1活动,为AD提供了潜在的治疗途径.
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.
- 分子生物学分子生物学
背景情况:
- 含有Src Homology 2的内醇5'-酸酶-1 (SHIP-1) 是一种阿尔茨海默病 (AD) 风险基因.
- 对TREM2级联的SHIP-1抑制会损害有益的微质功能,如细胞化.
- 现有的SHIP-1调节器在治疗开发或研究方面缺乏选择性和有效性.
研究的目的:
- 开发 SHIP-1 酸酶活性的新型小分子抑制剂.
- 确定用于调节中枢神经系统疾病中SHIP-1的新化学型.
- 为了验证SHIP-1抑制剂的高通量选平台.
主要方法:
- 选了49,260种中枢神经系统透性化合物,使用基于马拉绿色的测定方法检测抗SHIP-1活性.
- 进行了结构-活性关系 (SAR) 研究,以优化被击中化合物.
- 进行了运动分析和细胞测定 (微细胞化) 以表征分子.
主要成果:
- 确定了三种新的SHIP-1抑制剂支架,其IC50低至46.6μM.
- 优化了一个分子,SP3-12,达到6.1μM的IC50与竞争性抑制和7倍选择性比SHIP-2.
- 在没有细胞毒性的情况下,SP3-12在HMC3细胞中证明了微质细胞化 (EC50 = 2.0μM) 的剂量依赖激活.
结论:
- SP3-12是一种强效和选择性的SHIP-1抑制剂,具有证明的细胞活性.
- 这种化合物对研究SHIP-1在AD病变发生过程中的生物学作用具有前景.
- 开发的查平台和已识别的抑制剂推动了针对微质功能的AD治疗方法的搜索.
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