在表观遗传修饰中破解癌症代码DNA甲基化:在斯里兰卡面向的营养保健品的疗效评估上采用"in-silico"方法
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Updated: Jul 1, 2025

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Targeted DNA Methylation Analysis by Next-generation Sequencing
Published on: February 24, 2015
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Dushanan R1, Weerasinghe S2, Dissanayake D P2
1Department of Chemistry, Faculty of Natural Sciences, The Open University of Sri Lanka, Nawala, Sri Lanka.
Journal of biomolecular structure & dynamics
|March 1, 2024
概括
研究人员从斯里兰卡植物中发现了潜在的抗癌营养药物. 佩奇辛和欧瑞基迪作为DNA甲基转移酶 (DNMT) 抑制剂具有前景,类似于已批准的药物阿扎西提丁.
科学领域:
- 表观遗传学和分子生物学
- 计算化学计算化学
- 药理学 药理学是指药理学的学科.
背景情况:
- 基因甲基转移酶 (DNMTs) 是调节基因表达的关键表观遗传酶.
- 异常的DNMT活性与癌症的发展有关,使得DNMT抑制成为治疗策略.
- 识别新的自然抑制剂对于癌症治疗的发展至关重要.
研究的目的:
- 通过计算方法发现斯里兰卡植物中DNMT的潜在营养抑制剂.
- 在原子水平上分析已识别的营养药和DNMT酶之间的结合相互作用.
- 评估针对DNMT的选择化合物的稳定性和抑制潜力.
主要方法:
- 从斯里兰卡植物数据库中对200种营养药物进行虚拟选.
- 吸收,分布,新陈代谢,分泌和毒性 (ADMET) 分析.
- 分子对接,分子动力学模拟和轨迹分析.
- 与Azacitidine进行比较,Azacitidine是一种FDA批准的DNMT抑制剂.
主要成果:
- 七种营养药物表现出与DNMT酶具有显著的负键能.
- 佩特奇辛 (NP#0003) 和欧瑞基 (NP#0011) 表明DNMT酶稳定性增加.
- 这两种化合物表现出与阿扎西提丁可比的抑制功效.
结论:
- 佩奇辛和ouregidione是在癌症治疗中准DNMT的有希望的天然化合物.
- 这些营养药品需要通过临床应用的生物试验进行进一步的研究.
- 计算方法有效地识别了来自自然来源的潜在治疗剂.
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