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马特林和氧马特林:使用in silico工具和细菌逆变异试验 (阿梅斯试验) 评估基因突变潜力
Benjamin Christian Fischer1, Yemurai Musengi1, Jeannette König1
1German Federal Institute for Risk Assessment, Department Pesticides Safety, 10589 Berlin, Berlin, Germany.
Mutagenesis
|October 25, 2023
概括
在Sophora植物和有时甘中发现的马特林和氧马特林被测试出基因毒性. 细菌逆转基因突变测试 (Ames测试) 没有发现这些类化合物导致基因突变的证据.
科学领域:
- 药理学 药理学是指药理学的学科.
- 毒理学 毒理学 毒理学
- 自然产品 化学 化学
背景情况:
- 奎诺利齐丁类类化合物马林和氧马林在Sophora物种中发现.
- 在甘露产品中检测到马特林,可能是由于收获混或农药使用.
- 关于马丁和氧马丁的基因毒性之前的研究是不确定的,经常使用植物提取物而不是纯化合物.
研究的目的:
- 为了确定纯母和氧母的基因毒性潜力.
- 为了解决以前的基因毒性评估中的不确定性.
- 为了调查这些类化合物是否会导致基因突变.
主要方法:
- 使用VEGA,Leadscope和Nexus进行了in silico预测,但没有产生足够的信心水平.
- 按照经合组织测试指南471进行了细菌逆变异试验 (阿梅斯试验).
- 测试包括与五种细菌菌株进行的板块合并和预化试验,有或没有代谢激活.
主要成果:
- 在的预测无法最终确定或排除突变性潜力.
- 在任何测试条件下,Matrine和oxymatrine都没有在艾姆斯试验中诱导反转殖民地显著增加.
- 这些发现表明,Sophora提取物的积极结果可能是由于其他成分.
结论:
- 马特林和氧马特林不太可能具有导致基因突变的基因毒性潜力.
- 对植物二次代谢物的 (定量) 结构-活性关系 (Q) SAR) 工具的可靠性可能需要进一步评估.
- 需要进一步的研究,以了解可能被母和氧母污染的甘露产品的安全性.
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