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确定影响菌膜透和抗结核活性的化学特征

Irene Lepori¹, Zichen Liu², Nelson Evbarunegbe³

¹Department of Microbiology, University of Massachusetts, Amherst; Amherst, MA, USA.

bioRxiv : the preprint server for biology

|March 10, 2025

概括

研究人员确定了化学特征,帮助药物穿透结核病细菌独特的细胞壁. 这一发现有助于通过克服细菌耐药性来设计更有效的结核病治疗方法.

科学领域:

微生物学微生物学
药用化学医学化学
药物发现药物发现药物发现

背景情况:

由Mycobacterium tuberculosis (Mtb) 引起的结核病 (TB) 是全球主要的传染病.
目前的结核病抗生素治疗方案长 (≥4个月),突出显示了对新型治疗方法的需求.
Mtb细胞外,特别是菌膜,是抗生素进入的障碍,有助于内在耐药性.

研究的目的:

研究影响Mtb.菌膜透的化学特征.
开发用于真菌膜透性和抗结核病活性的预测模型.
确定克服菌膜介导抗生素耐药性的策略.

主要方法:

利用生物直角点击化学试验PAC-MAN来评估活MTB中的1500多种azide标记化合物的真菌膜透率.
采用化学信息学和机器学习来识别控制透的关键化学特征.
通过对小分子序列的系统修改,验证了预测特征.

主要成果:

确定了与Mtb.中的真菌膜透相关的特定化学特征.
在小分子系列中证明了这些特征的预测能力.
在大型化合物库中发现了菌膜透特征和抗Mtb活性之间的相关性.

结论:

Mtb菌膜对抗结核病化合物的疗效起着显著的阻碍作用.
影响菌膜透的化学特征与全细胞抗菌活性有关.
这项研究为设计或优化候选药物提供了合理的基础,以增强Mtb细胞进入和克服耐药性.

关键词:

生物对角点击化学机器学习是机器学习.这就是我的mycomembrane.透性透性的结核病是一种肺结核病.

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