通过在知识图中结合代谢数据组织和严格的3R感染模型来优先考虑新的抗感染性stilbene衍生物
Olivier Auguste Kirchhoffer1,2, Luis Quirós-Guerrero1,2, Jahn Nitschke3
1Institute of Pharmaceutical Sciences of Western Switzerland, University of Geneva, CMU 1211 Geneva Switzerland Jean-Luc.Wolfender@unige.ch.
RSC advances
|April 24, 2025
概括
发现了新的天然化合物来对抗多药耐药结核病. 研究人员使用新型感染模型选植物提取物,识别了Gnetum edule的强效 stilbenes 作为有前途的抗感染剂.
科学领域:
- 自然产品化学 自然产品化学
- 微生物学 微生物学
- 药物发现 药物发现 药物发现
背景情况:
- 耐多药结核病 (MDR-TB) 构成了严重的全球健康威胁,需要新的治疗策略.
- 现有的抗生素面临挑战,原因是 Mycobacterium tuberculosis 新兴的耐药性机制.
- 自然产品提供了丰富的各种化学结构的丰富来源,具有潜在的抗感染特性.
研究的目的:
- 发现抗多药性结核病有效的新型抗感染化合物.
- 确定特定的天然产品及其负责抗感染活性的化学类别.
- 探索植物天然提取物 (NEs) 的潜力,作为新的抗结核药物潜在的来源.
主要方法:
- 查1600种植物NEs使用高通量表型分析,以感染Mycobacterium marinum的Dictyostelium discoideum作为模型.
- 不针对性的UHPLC-HRMS/MS对NEs进行化学分析.
- 高分辨率的HPLC微分化,生物活性分析,知识图分析和NMR表征以隔离和识别活性化合物.
主要成果:
- 来自Stauntonia brunoniana的NE被确定为一种抗感染性热.
- 确定了烯为主要活性化合物,使用知识图选择了14种烯丰富的NE.
- 从Gnetum edule中分离了11种stilbene寡合物,包括6种新型化合物; (-) -gnetuhainin M显示出最高的抗感染活性 (IC50 = 22.22 μM).
结论:
- 该研究成功地确定了 stilbenes 作为一种有希望的自然化合物类别,具有对抗MDR-TB的抗感染潜力.
- Gnetum edule代表了具有显著抗结核病活性的多样化基的宝贵来源.
- 鉴定到的化合物,特别是 (-) - 基尼图海宁M,需要进一步研究,因为它们是结核病治疗的潜在候选药物.
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