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PLoS One:新型合成类黄酮具有强效抗菌活性

2018-04-08 MedSci MedSci原创

致病性多药耐药菌的出现需要寻找新的有效的抗菌药物。黄酮类化合物由于其较好的抗菌活性,或可用于耐药菌的治疗。本研究中,研究人员探究了ClCl-flav-a新型合成三环类黄酮的有效体外抗菌活性。使用最小抑制浓度(MIC),时间杀灭和生物膜形成测定来测试ClCl-flav的抗菌作用。使用荧光显微镜和扫描电子显微镜来探究其作用机制。使用MTT测试来评估ClCl-flav的细胞毒性。结果表明,与革兰阴性菌(

致病性多药耐药菌的出现需要寻找新的有效的抗菌药物。黄酮类化合物由于其较好的抗菌活性,或可用于耐药菌的治疗。本研究中,研究人员探究了ClCl-flav-a新型合成三环类黄酮的有效体外抗菌活性。

使用最小抑制浓度(MIC),时间杀灭和生物膜形成测定来测试ClCl-flav的抗菌作用。使用荧光显微镜和扫描电子显微镜来探究其作用机制。使用MTT测试来评估ClCl-flav的细胞毒性。

结果表明,与革兰阴性菌(MIC =3.9μg/mL)相比,革兰阳性菌(MIC =0.24μg/mL)对ClCl-flav更敏感。ClCl-flav的抗菌活性较其他合成类黄酮活性高32-72倍。ClCl-flav在0.48至15.62μg/mL范围内显示出杀菌活性。两倍MIC时,大肠杆菌和肺炎克雷伯氏菌在1小时内被杀死。同时,ClCl-flav还具有良好的抗生物膜活性。ClCl-flav的作用机制与细胞膜完整性受损有关。在有效浓度下,ClCl-flav对Vero细胞没有或仅有非常低的细胞毒性。

综上所述,基于强抗菌活性和细胞毒性评估,ClCl-flav有望成为新型抗菌剂。

原始出处:


Babii C, Mihalache G, et al., A novel synthetic flavonoid with potent antibacterial properties: In vitro activity and proposed mode of action. PLoS One. 2018 Apr 4;13(4):e0194898. doi: 10.1371/journal.pone.0194898. eCollection 2018.

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    2018-11-07 fengyi821
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    2018-04-09 yfjms

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