分子对接,分子动力学,MM/PBSA方法和生物活性研究的nepetanudoside B从特有Nepeta aristata中分离出来
Yunus Başar1, İbrahim Demirtaş1,2, Semiha Yenigün3
1Research Laboratories Application and Research Center (ALUM), Igdir University, Igdir, Türkiye.
从Nepeta aristata中分离出的Nepetanudoside B (NNB) 显示出显著的酶抑制和DNA保护性质. 这种天然化合物显示出对制药应用的潜力,特别是作为BCHE抑制剂.
科学领域:
- 植物化学 植物化学
- 药用化学 医学化学
- 生物化学 生物化学
背景情况:
- 固有植物Nepeta aristata含有具有潜在治疗价值的生物活性化合物.
- 自然产品是新药发现和开发的丰富来源.
- 酶抑制和DNA保护是各种治疗干预的关键机制.
研究的目的:
- 从Nepeta aristata中分离和鉴定Nepetanudoside B (NNB) 的特征.
- 评估NNB的酶抑制和DNA保护活性.
- 为了比较NNB与常规药物的疗效,并探索其治疗潜力.
主要方法:
- 使用凝和Sephadex LH-20列染色法进行隔离和净化,然后进行制剂-HPLC.
- 使用NMR (1H,13C,COSY,HSQC,HMBC) 和LC-MS/MS进行NNB的结构阐明.
- 酶抑制试验 (尿酶,α-氨酶,碳酸,脂酶,α-葡萄糖酶,氨酶,ACHE,BCHE),DNA保护试验,酶动力学,分子对接和分子动力学模拟.
主要成果:
- NNB对尿酶,脂酶,BChE,铁酶,α-葡萄糖酶,α-氨酶和ACHE具有强烈的抑制活性.
- 分子对接揭示了NNB与alpha-glucosidase和BChE的有利结合能.
- 酶动力学表明大多数酶的非竞争性抑制,BChE和铁酶的竞争性抑制.
结论:
- 尼佩塔努度B具有显著的酶抑制和DNA保护性质.
- 对于食品和制药行业的应用来说,NNB是有前途的,特别是作为BCHE抑制剂.
- 根据其已证明的疗效,NNB作为治疗剂的进一步开发是有必要的.
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