基于pyrimidine的新型希夫基复合物的合成:针对阿尔茨海默氏病中的化β聚合
Sevil İrişli1, Aslı Çakır1, Salih Günnaz1
1Department of Chemistry, Faculty of Science, Ege University, Bornova, Izmir 35100, Turkey.
Bioorganic chemistry
|December 5, 2024
概括
新型和复合物有效抑制粉样β (Aβ) 聚合,这是神经退行性疾病的关键因素. 这些化合物在保护神经元细胞和维持细胞活力方面表现有前途.
科学领域:
- 材料化学 材料化学
- 神经科学是一个神经科学.
- 生物化学 生物化学
背景情况:
- 粉样β (Aβ) 聚合是阿尔茨海默病和其他神经退行性疾病的标志.
- 开发小分子来抑制Aβ聚合是一种关键的治疗策略.
- 希夫基和它们的金属复合体是为了它们的生物活动而被探索的.
研究的目的:
- 为了合成和表征来自希夫基的新 (((II) 和 (((II) 复合物.
- 评估这些金属复合物的有效性,以抑制粉样β (Aβ1-42) 聚合.
- 评估复合体对人类神经母细胞瘤细胞的神经保护作用.
主要方法:
- 使用光谱技术 (FT-IR,NMR,质谱学) 和元素分析,合成和表征希夫基联体 (L) 和其Pt (II) 和Ru (II) 复合物.
- 在体外评估Aβ1-42聚合抑制使用Thioflavin T光试验.
- 在SH-SY5Y细胞中使用MTT试验评估细胞活力.
- 显微镜技术 (SEM,TEM) 用于可视化Aβ纤维素形态.
- 使用MALDI-TOF/MS和H NMR光谱学研究复杂相互作用.
主要成果:
- 新的希夫基联体及其Pt (II) 和Ru (II) 复合物已成功合成和表征.
- 这两种金属复合体都在1:1M的比例上显著抑制了Aβ1-42聚合.
- 这些复合物在10μM下提高了SH-SY5Y细胞的细胞活力高达80%,抵消了由Aβ1-42聚合引起的65%活力减少.
- 显微镜和光谱分析证实了纤维细胞形成的抑制和与Aβ的相互作用.
结论:
- 合成的 (II) 和 (II) 复合物是粉样β聚合的有效抑制剂.
- 这些复合物表现出神经保护性质,在聚合Aβ的存在下显著改善细胞活力.
- 这些发现表明,这些金属复合物的潜在治疗应用在打击与粉样蛋白病理学相关的神经退行性疾病.
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