A method for identifying compounds that inhibit amyloid-beta precursor protein processing in cells, comprising contacting a test compound with a SPHK polypeptide, or fragment thereof, and measuring a compound-SPHK property related to the production of amyloid-beta peptide. Cellular assays of the method measure indicators including phosphorylated kinase substrate and/or amyloid beta peptide levels. Therapeutic methods, and pharmaceutical compositions including effective amyloid-beta precursor processing-inhibiting amounts of SPHK expression inhibitors, are useful for treating conditions involving cognitive impairment such as Alzheimer's Disease.
一种鉴定抑制细胞中淀粉样β前体蛋白加工的化合物的方法,包括将测试化合物与
SPHK
多肽或其片段接触,并测量与淀粉样β肽的产生有关的化合物-
SPHK 特性。该方法的细胞测定指标包括
磷酸化激酶底物和/或淀粉样 beta 肽
水平。治疗方法和药物组合物包括有效的淀粉样β前体加工抑制量的
SPHK表达
抑制剂,可用于治疗涉及认知障碍的疾病,如阿尔茨海默病。