通过蛋白质组的计算分析设计的抗微生物
Dahiana Monsalve1, Andrea Mesa1, Laura M Mira1
1Escuela de Biociencias, Departamento de Ciencias, Universidad Nacional de Colombia, sede Medellín, Carrera 65 # 59A-110, 050034, Medellín, Antioquia, Colombia.
Antonie van Leeuwenhoek
|March 15, 2024
概括
研究人员使用计算方法和人工智能发现了新型抗微生物 (AMP). 这些强大的AMP在通过破坏细菌细胞膜来对抗抗生素耐药性方面表现有前途.
科学领域:
- 生物化学和分子生物学
- 计算生物学 计算生物学
- 药物发现 药物发现 药物发现
背景情况:
- 抗生素耐药性是一个日益增长的全球健康威胁.
- 抗微生物 (AMP) 由于其独特的特性,提供了一个潜在的解决方案.
- 新的AMP发现对于开发新的抗微生物策略至关重要.
研究的目的:
- 从蛋白质组中识别和开发新的抗微生物 (AMP).
- 验证已识别的的抗微生物和细胞毒性潜力.
- 为了证明AMP发现的计算方法的效率.
主要方法:
- 使用内部软件和人工智能分析来自不同蛋白质组的150,450种蛋白质.
- 9个候选序列的选择和合理修改.
- 在体外生物测试以评估对细菌和酵母的抗微生物活性,以及对癌症细胞系的细胞毒性.
主要成果:
- 在18种修改过的中,有14种表现出抗微生物活性 (MIC<10μM) 对至少3种细菌物种.
- 七种对Candida albicans (MIC<10微米) 有效.
- 六种体显示治疗指数> 20; 两种和八种体对分别A549和MCF-7癌细胞系表现出活性.
结论:
- 计算策略与理性修改相结合,对于发现强大的AMP非常有效.
- 已确定的AMP显示出显著的抗微生物活性和治疗应用的潜力.
- 作用机制涉及细菌细胞膜损伤.
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