选择性 (α) -l-Rhamnosylation和神经保护性活动 心脏动力类固醇的探索
Ryan Rutkoski1, Lucas Kniess Debarba2, Lukas Stilgenbauer2
1Department of Medicinal Chemistry, University of Michigan, Ann Arbor, Michigan 48109, United States.
ACS medicinal chemistry letters
|February 14, 2024
概括
研究人员探索了心脏性类固醇的C3-糖化对神经保护的作用. 合成无-乌阿巴因显著降低了质细胞中的神经炎症标志物,与未糖化无-乌阿巴根因不同.
科学领域:
- 药用化学 医学化学
- 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.
背景情况:
- 心血管类固醇具有复杂的结构和多样化的生物活动.
- 神经炎症与各种神经系统疾病有关.
- 针对性地修改心性类固醇可能产生新的治疗药物.
研究的目的:
- 为C19-基化心性类固醇开发直接C3-糖化策略.
- 为了合成新型C3-糖基化心脏性类固醇衍生物.
- 评估这些化合物的神经保护潜力,以防止脂聚糖 (LPS) 诱导的神经炎症.
主要方法:
- 使用酸与酸的基基在位保护,用于选择性C3-糖基化.
- 在斯特罗芬蒂多尔,无水-乌阿巴根因和乌阿巴根因上进行了单糖化反应.
- 在用LPS刺激的新生小鼠初级质细胞中评估神经炎症标志物 (IL-6,IL-1,TNFα,IKBKE).
主要成果:
- 取得了成功的单C3选择性糖基化斯特罗芬蒂多尔和无水-ouabagenin.
- 这一策略未能将奥阿巴根因糖化为奥阿巴因.
- 合成和天然的C3-糖化物在200nM时显著降低了LPS诱导的神经炎症.
- 无水素-ouabagenin-3-(α) -l-rhamnoside (无水素-ouabain) 证明了最强大的神经保护作用.
- 联合基化无水-甲基因因加剧了LPS诱导的神经炎症.
结论:
- 针对特定的心脏性类固醇,建立了一种新的C3糖化策略.
- 合成的C3糖化物,特别是无水-乌胺,具有显著的神经保护性.
- 糖化状态对于这些化合物的抗神经炎症活性至关重要.
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