1,4-二氨基酸和1,4-二氨基酸替代的芳香衍生物选择性抑制α-Synuclein寡合体形成在体外
Susantha K Ganegamage1, Eduardo Ramirez1, Heba Alnakhala2
1Department of Basic Medical Sciences, College of Veterinary Medicine, Purdue University, West Lafayette, Indiana 47907, United States.
ACS omega
|January 15, 2024
概括
研究人员开发了新的尿素和硫尿素化合物,以抑制α-synuclein聚合,这是帕金森病 (PD) 的关键过程. 化合物1在减少细胞内含物方面表现有希望,为PD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.
- 药用化学 医学化学
- 药物发现 药物发现 药物发现
背景情况:
- 帕金森病 (PD) 是一种流行的神经退行性疾病,与α-syn (α-syn) 错误折叠和Lewy体 (LB) 形成有关.
- 目前的治疗策略缺乏批准的治疗方法来缓解PD患者的LB形成.
- 向α-syn聚合是PD药物开发的一个有希望的方法.
研究的目的:
- 合成和评估新的尿素和硫尿素化合物,以检测它们抑制α-syn聚合的能力.
- 为了识别选择性地减少α-syn寡合体形成和细胞内含的化合物.
- 探索帕金森病治疗的潜在治疗支架.
主要方法:
- 尿素和硫尿素类似物与1,4-二尿素/硫尿素结合的合成.
- 生物物理分析包括提奥夫拉T (ThT) 光,传输电子显微镜 (TEM) 和未经修改蛋白质的光诱导交联 (PICUP).
- 基于细胞的测试使用M17D神经母细胞瘤细胞来评估细胞内包容形成.
主要成果:
- 化合物1在ThT试验中有效降低了α-syn纤维的形成.
- 与化合物1相比,化合物2显示出更强的α-syn寡合体形成抑制.
- 这两种化合物都选择性地抑制了α-syn聚合,而不会影响tau蛋白异型;化合物1以剂量依赖的方式降低了细胞中的α-syn包含.
结论:
- 新型尿素和硫尿素化合物显示出抑制α-syn聚合的显著潜力.
- 化合物1表现出有前途的抗聚合活性和细胞保护作用,作为PD治疗的潜在支架.
- 选择性抑制α-syn聚合为开发用于帕金森病的小分子药物提供了可行的策略.
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