申请人:National University Corporation Tokyo Medical and Dental University
公开号:US10989719B2
公开(公告)日:2021-04-27
To provide a compound which enables treatment or prevention of spinocerebellar ataxia, analyses were carried out based on a screening using a spinocerebellar ataxia type 1 (SCA1) fly model and on the like. As a result, the following proteins ameliorating the pathology of spinocerebellar ataxia were identified: RPA1, PNKP, XRCC3, XRCC4, CCNH, POLE, POLH, and PER1. On the other hand, the following proteins aggravating the pathology were identified: CHK1, LIG3, FEN1, LIG1, ERCC5, XAB2, ERCC2, DMC1, RECQL5, MUS81, EME1, SPO11, and BLM. In addition, it has been revealed that ATXN1, which is a cause of SCA1, binds to RPA1, BRCA1, and BRCA2, and suppresses the activities of these proteins, so that the above-described pathology is caused.
为了提供一种能够治疗或预防脊髓小脑共济失调的化合物,在利用脊髓小脑共济失调 1 型(SCA1)蝇模型等进行筛选的基础上进行了分析。结果发现了以下可改善脊髓小脑共济失调病理的蛋白质:RPA1、PNKP、XRCC3、XRCC4、CCNH、POLE、POLH 和 PER1。另一方面,还发现了以下会加重病症的蛋白质:CHK1、LIG3、FEN1、LIG1、ERCC5、XAB2、ERCC2、DMC1、RECQL5、MUS81、EME1、SPO11 和 BLM。此外,研究还发现,导致 SCA1 的 ATXN1 会与 RPA1、BRCA1 和 BRCA2 结合,抑制这些蛋白的活性,从而导致上述病理现象。