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三个来自豆的豆,具有有前途的抗甲基素耐药性金黄色葡萄球菌生物膜形成活动

Bai-Lin Li^1,2, Jia-Yan Chen¹, Juan-Juan Hu³

¹School of Pharmaceutical Science, Guangzhou University of Chinese Medicine, Guangzhou, 510006, P. R. China.

International microbiology : the official journal of the Spanish Society for Microbiology

|July 28, 2023

概括

豆,包括longistylin A,显示强烈的抗菌活性,对黄金葡萄球菌和抗甲素的黄金葡萄球菌 (MRSA). 这些化合物有效地抑制MRSA的扩散和生物膜的形成,这表明它们有可能作为抗菌剂.

科学领域:

植物化学植物化学
微生物学微生物学
食品科学食品科学食品科学

背景情况:

豆 (Cajanus cajan) 是一种有价值的豆类作物.
烯是一种具有多种生物活动的植物二次代谢物.
抗生素耐药性,特别是来自MRSA的抗生素耐药性,对全球健康构成重大威胁.

研究的目的:

为了评估三种豆 stilbenes 的抗菌活性:cajaninstilbene 酸 (CSA),longistylin A (LLA) 和longistylin C (LLC).
评估这些杆菌在抑制金色葡萄球菌和耐甲林金色葡萄球菌 (MRSA) 生物膜形成方面的潜力.
为了研究这些烯对MRSA的抗病毒效应.

主要方法:

确定CSA,LLA和LLC针对S. aureus和MRSA的最小抑制度 (MIC) 和最小杀菌度 (MBC).
生物膜抑制试验旨在评估 stilbenes 在防止细菌粘附和增殖方面的有效性.
分析与MRSA粘附和毒性相关的关键基因表达.

主要成果:

龙士提林A (LLA) 显示出最高的抗菌功效,MIC/MBC值为1.56μg/mL.
龙斯提林C (LLC) 和卡亚宁斯提尔酸 (CSA) 也表现出显著的抗菌活性.
斯蒂尔本有效地抑制了MRSA的扩散,生物膜的形成,以及病毒性相关基因的表达.

结论:

这项研究首次系统地报告了CSA,LLA和LLC的抗S. aureus和抗MRSA活动.
这些豆树具有作为抗菌剂或功能性食品添加剂的巨大潜力.
这些发现有助于理解对抗MRSA的stilbene机制以及豆在食品科学中的应用.

关键词:

抗菌活动抗菌活动生物膜是一种生物膜.甲基西林耐药的金黄色葡萄球菌 (Staphylococcus aureus) 是一种子豆豆是一种子豆.斯蒂尔贝尼斯蒂尔贝尼

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