一种新的甲衍生物表现出对Aspergillus flavus的抗毒活性
Usuma Jermnak1, Paiboon Ngernmeesri2, Chompoonek Yurayart3
1Department of Pharmacology, Faculty of Veterinary Medicine, Kasetsart University, Bangkok 10900, Thailand.
Journal of fungi (Basel, Switzerland)
|November 24, 2023
概括
一种新型化合物MPOBA有效地抑制了阿斯伯吉卢斯黄菌 (Aspergillus flavus) 产生的阿夫拉托克辛B1 (AFB1). 这种化合物还减少了真菌子的形成,具有较低的毒性,为控制亚毒素污染提供了潜在的解决方案.
科学领域:
- 菌类学 菌类学是指菌类学.
- 食品安全 食品安全
- 化学生物学 化学生物学
背景情况:
- 非洲毒素B1 (AFB1) 是Aspergillus flavus产生的强有力的致癌物,对食品和料安全构成风险.
- AF污染影响全球农业和经济,需要有效的控制策略.
研究的目的:
- 为了研究一种新的甲衍生物,2-[(2-methylpyridin-3-yl) oxy]甲 (MPOBA) 对抗Aspergillus flavus的AFB1抑制活性.
- 评估MPOBA对AFB1生物合成和真菌发育的影响.
主要方法:
- 评估MPOBA使用IC50值来抑制AFB1的产生.
- 通过RT-qPCR监测调节基因 (aflR, veA, laeA) 的结合和定量基因表达.
- 在Madin-Darby犬 (MDCK) 细胞系上评估MPOBA细胞毒性.
主要成果:
- 在MPOBA的研究中,MPOBA显著抑制AFB1的产生,IC50为0.55毫米.
- 在相同的度下,MPOBA也抑制了化.
- 在MPOBA治疗后观察到aflR,veA和laeA基因的转录水平降低.
- MPOBA对MDCK细胞的细胞毒性非常低.
结论:
- MPOBA 通过潜在地影响调控基因表达和状细胞发育,有效地抑制了 Aspergillus flavus 中的 AFB1 生产.
- 由于MPOBA的低细胞毒性和抑制作用,这表明它有可能成为控制食品和料中 aflatoxin污染的实用药物.
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