This study aimed to explore the anti-bacterial and anti-fungal activities of extracts from different parts of plants in the Zingiberaceae family.The inhibitory rate,minimum inhibitory concentration(MIC),and minimum ba...This study aimed to explore the anti-bacterial and anti-fungal activities of extracts from different parts of plants in the Zingiberaceae family.The inhibitory rate,minimum inhibitory concentration(MIC),and minimum bactericidal concentration(MBC)of leaf and stem,and root and rhizome extracts from Alpinia katsumadai Hayata,Alpinia oxyphylla Miq×Alpinia henryi K.Schumann,Alpinia oblongifolia Hayata,Alpinia nigra(Gaertn.)Burtt,Amomum villosum Lour,Alpinia zerumbet(Pers.)Burtt.et Smith and Alpinia oxyphylla Miq were determined using the fungus cake method and double dilution method.The seven Zingiberaceae plants exhibited characteristic antibacterial activities against pathogenic bacteria and fungi.At a 1.5 mg mL^(−1),A.zerumbet root and rhizome extracts exhibited strong inhibitory activity against S.aureus and E.coli,with 83.23%and 79.62%,respectively.In addition,A.zerumbet leaf and stem extracts had an inhibitory rate of 90.85%against P.aeruginosa.At the same concentration,the leaf and stem,root and rhizome extracts of A.katsumadai had the best anti-bacterial effect against F.oxysporum,with inhibition rates of 84.46%and 84.73%,respectively.Moreover,A.katsumadai and A.zerumbet leaf and stem extracts had the most significant antibacterial effect against S.aureus,with a MIC of 0.063 mg mL^(−1).Thus,both A.katsumadai and A.zerumbet extracts had significant antibacterial activity.In addition,by comparing the inhibitory effect of extracts from different parts,it was found that the inhibitory rate and average inhibitory rate of extracts from leaf and stem were higher than those from root and rhizome.The chemical constituents of A.katsumadai and A.zerumbet,determined by the high-performance liquid chromatography-tandem mass spectrometry(UPLC-MS/MS),revealed that citric acid(CA),alpinetin,and pinocembrin(PNCB)were the functional constituents yielding the antibacterial activity.Overall,A.katsumadai and A.zerumbet have the potential to be developed as new plant fungicides and bactericides.展开更多
目的结合网络药理学、分子对接技术及其体外实验,探讨青蒿应用于脓肿分枝杆菌感染的作用机制。方法从中药系统药理学数据库和分析平台(traditional Chinese medicine systems pharmacology database and analysis platform,TCMSP)系统...目的结合网络药理学、分子对接技术及其体外实验,探讨青蒿应用于脓肿分枝杆菌感染的作用机制。方法从中药系统药理学数据库和分析平台(traditional Chinese medicine systems pharmacology database and analysis platform,TCMSP)系统中获得青蒿的活性成分,使用PharmMapper、SwissTargetPrediction预测青蒿作用靶点。从GeneCards数据库和OMIM数据库获得脓肿分枝杆菌感染相关靶点。获得共同靶点后,使用STRING数据库和Cytoscape软件构建蛋白质-蛋白质相互作用(protein-protein interaction,PPI)网络图。使用Metascape数据库进行基因本体(gene ontology,GO)功能富集分析和京都基因与基因组百科全书(Kyoto encyclopedia of genes and genomes,KEGG)通路富集分析。筛选出青蒿主要潜在活性成分与核心靶点进行分子对接。将青蒿提取物及筛选出的青蒿主要潜在活性成分进行体外实验,探究其最小抑菌浓度,与常用抗脓肿分枝杆菌抗生素的体外联合作用,及其对脓肿分枝杆菌活力的影响。结果共发现48个青蒿靶点参与脓肿分枝杆菌感染的发病机制。MMP9、MAPK3、CASP3、IL2、CASP1、MMP2共6个靶点预测为通过青蒿治疗该疾病的核心靶点。KEGG富集分析表明,青蒿可能通过IL-17信号通路、中性粒细胞胞外陷阱形成、Toll样受体信号通路、肿瘤坏死因子信号通路、MAPK信号通路等炎症和免疫相关信号通路治疗该疾病。分子对接结果表明,青蒿与这些核心靶点具有高亲和力。筛选出柽柳黄素、艾黄素、双氢青蒿素、青蒿提取物对脓肿分枝杆菌具有体外抑菌活性,单独药物的最小抑菌浓度(MIC)值分别为200、100、100、100μg/mL。联合使用青蒿提取物后,克拉霉素、阿奇霉素、阿米卡星、亚胺培南、头孢西丁的MIC值都较单独使用时下降,下降倍数为2~8倍。结论青蒿可能通过多靶点和多途径作用于脓肿分枝杆菌感染,其对脓肿分枝杆菌具有体外抑菌作用并与部分抗生素产生协同作用。展开更多
基金funded by the Forestry Science and Technology Innovation Project of Guangdong Province,China(2020KJCX010).
文摘This study aimed to explore the anti-bacterial and anti-fungal activities of extracts from different parts of plants in the Zingiberaceae family.The inhibitory rate,minimum inhibitory concentration(MIC),and minimum bactericidal concentration(MBC)of leaf and stem,and root and rhizome extracts from Alpinia katsumadai Hayata,Alpinia oxyphylla Miq×Alpinia henryi K.Schumann,Alpinia oblongifolia Hayata,Alpinia nigra(Gaertn.)Burtt,Amomum villosum Lour,Alpinia zerumbet(Pers.)Burtt.et Smith and Alpinia oxyphylla Miq were determined using the fungus cake method and double dilution method.The seven Zingiberaceae plants exhibited characteristic antibacterial activities against pathogenic bacteria and fungi.At a 1.5 mg mL^(−1),A.zerumbet root and rhizome extracts exhibited strong inhibitory activity against S.aureus and E.coli,with 83.23%and 79.62%,respectively.In addition,A.zerumbet leaf and stem extracts had an inhibitory rate of 90.85%against P.aeruginosa.At the same concentration,the leaf and stem,root and rhizome extracts of A.katsumadai had the best anti-bacterial effect against F.oxysporum,with inhibition rates of 84.46%and 84.73%,respectively.Moreover,A.katsumadai and A.zerumbet leaf and stem extracts had the most significant antibacterial effect against S.aureus,with a MIC of 0.063 mg mL^(−1).Thus,both A.katsumadai and A.zerumbet extracts had significant antibacterial activity.In addition,by comparing the inhibitory effect of extracts from different parts,it was found that the inhibitory rate and average inhibitory rate of extracts from leaf and stem were higher than those from root and rhizome.The chemical constituents of A.katsumadai and A.zerumbet,determined by the high-performance liquid chromatography-tandem mass spectrometry(UPLC-MS/MS),revealed that citric acid(CA),alpinetin,and pinocembrin(PNCB)were the functional constituents yielding the antibacterial activity.Overall,A.katsumadai and A.zerumbet have the potential to be developed as new plant fungicides and bactericides.
文摘目的结合网络药理学、分子对接技术及其体外实验,探讨青蒿应用于脓肿分枝杆菌感染的作用机制。方法从中药系统药理学数据库和分析平台(traditional Chinese medicine systems pharmacology database and analysis platform,TCMSP)系统中获得青蒿的活性成分,使用PharmMapper、SwissTargetPrediction预测青蒿作用靶点。从GeneCards数据库和OMIM数据库获得脓肿分枝杆菌感染相关靶点。获得共同靶点后,使用STRING数据库和Cytoscape软件构建蛋白质-蛋白质相互作用(protein-protein interaction,PPI)网络图。使用Metascape数据库进行基因本体(gene ontology,GO)功能富集分析和京都基因与基因组百科全书(Kyoto encyclopedia of genes and genomes,KEGG)通路富集分析。筛选出青蒿主要潜在活性成分与核心靶点进行分子对接。将青蒿提取物及筛选出的青蒿主要潜在活性成分进行体外实验,探究其最小抑菌浓度,与常用抗脓肿分枝杆菌抗生素的体外联合作用,及其对脓肿分枝杆菌活力的影响。结果共发现48个青蒿靶点参与脓肿分枝杆菌感染的发病机制。MMP9、MAPK3、CASP3、IL2、CASP1、MMP2共6个靶点预测为通过青蒿治疗该疾病的核心靶点。KEGG富集分析表明,青蒿可能通过IL-17信号通路、中性粒细胞胞外陷阱形成、Toll样受体信号通路、肿瘤坏死因子信号通路、MAPK信号通路等炎症和免疫相关信号通路治疗该疾病。分子对接结果表明,青蒿与这些核心靶点具有高亲和力。筛选出柽柳黄素、艾黄素、双氢青蒿素、青蒿提取物对脓肿分枝杆菌具有体外抑菌活性,单独药物的最小抑菌浓度(MIC)值分别为200、100、100、100μg/mL。联合使用青蒿提取物后,克拉霉素、阿奇霉素、阿米卡星、亚胺培南、头孢西丁的MIC值都较单独使用时下降,下降倍数为2~8倍。结论青蒿可能通过多靶点和多途径作用于脓肿分枝杆菌感染,其对脓肿分枝杆菌具有体外抑菌作用并与部分抗生素产生协同作用。
