目的:利用网络药理学和分子对接技术对四鲜汤治疗急性白血病(AcuteLeukemia,AL)的作用机制进行研究。方法:通过中药系统药理学数据库与分析平台(Traditional Chinese Medicine Systems Pharmacology Database and Analysis Platform,TCM...目的:利用网络药理学和分子对接技术对四鲜汤治疗急性白血病(AcuteLeukemia,AL)的作用机制进行研究。方法:通过中药系统药理学数据库与分析平台(Traditional Chinese Medicine Systems Pharmacology Database and Analysis Platform,TCMSP)、中药分子机制生物信息学分析工具(Bioinformatics Analysis Tool for Molecular Mechanism of Traditional Chinese Medicine,BATMAN—TCM)和中医药百科全书数据库(Encyclopedia of Traditional Chinese Medicine,ETCM)检索并获取鲜药复方四鲜汤组方中药(生地、白茅根、小蓟、蒲公英)的化学成分,建立鲜药复方-四鲜汤的天然药物活性化学成分数据集;检索人类基因数据库(Human Gene Data Base,Gencards)、人类疾病相关基因和变异的信息的数据库(Database of Gene-Disease Associations,DisGeNET)、在线生物信息学和化学信息学数据库(Database for Drug and Drug Target Info,DrugBank)、人类疾病数据库(Human Disease Database,MalaCards)以获得AL疾病相关靶点,建立疾病靶点数据库。获取药物以及疾病的交集靶点后,在线画出两者共同靶点venn图;利用String11.5平台构建药物疾病蛋白互作网络;利用cytoscape3.8.2软件构建“药物—疾病—靶点—信号通路”网络,获取相关靶点网络拓扑参数。结果:经TcMSp\BAT-MAN—TcM和ETcM三个数据库检索,获得四鲜汤活性成分30个,相关靶点677个;通过Gencards、DrugBank、MalaCards和DisGeNET四个数据库获得12110个AL疾病潜在靶点;通过R4.2.2平台的ClusterProfiler软件包获得生物功能富集(Gene Ontology,GO)信息条目1011条,其中生物过程(Biological Process,BP)467条,分子功能(Molecular Function,MF)236条,细胞组分(Cellular Component,CC)308条;获得富集的京都基因与基因组百科全书(Kyoto Encyclopedia of Genesand Genomes,KEGG)信号通路220条,主要涉及化学致癌受体激活、脂质与动脉粥样硬化、流体剪切力与动脉粥样硬化、前列腺癌、AGE-RAGE信号通路在糖尿病并发症中的作用等;网络拓扑分析发现,四鲜汤治疗AL疾病作用的主要活性成分有γ-氨基丁酸、腺嘌呤核苷、槲皮素、东莨菪碱和蒲公英萜醇等化合物。结论:四鲜汤治疗AL是一种多成分多靶点多信号通路的共同调节过程,网络药理学为阐明四鲜汤治疗AL的作用机理提供了坚实的研究基础。展开更多
Avirulence effectors(Avrs),encoded by plant pathogens,can be recognized by plants harboring the corresponding resistance proteins,thereby initiating effector-triggered immunity(ETI).In susceptible plants,however,Avrs ...Avirulence effectors(Avrs),encoded by plant pathogens,can be recognized by plants harboring the corresponding resistance proteins,thereby initiating effector-triggered immunity(ETI).In susceptible plants,however,Avrs can function as effectors,facilitating infection via effector-triggered susceptibility(ETS).Mechanisms of Avr-mediated ETS remain largely unexplored.Here we report that the Magnaporthe oryzae effector Avr-PikD enters rice cells via the canonical cytoplasmic secretion pathway and suppresses rice basal defense.Avr-PikD interacts with an LSD1-like transcriptional activator AKIP30 of rice,and AKIP30 is also a positive regulator of rice immunity,whereas Avr-PikD impedes its nuclear localization and suppresses its transcriptional activity.In summary,M.oryzae delivers Avr-PikD into rice cells to facilitate ETS by inhibiting AKIP30-mediated transcriptional regulation of immune response against M.oryzae.展开更多
文摘目的:利用网络药理学和分子对接技术对四鲜汤治疗急性白血病(AcuteLeukemia,AL)的作用机制进行研究。方法:通过中药系统药理学数据库与分析平台(Traditional Chinese Medicine Systems Pharmacology Database and Analysis Platform,TCMSP)、中药分子机制生物信息学分析工具(Bioinformatics Analysis Tool for Molecular Mechanism of Traditional Chinese Medicine,BATMAN—TCM)和中医药百科全书数据库(Encyclopedia of Traditional Chinese Medicine,ETCM)检索并获取鲜药复方四鲜汤组方中药(生地、白茅根、小蓟、蒲公英)的化学成分,建立鲜药复方-四鲜汤的天然药物活性化学成分数据集;检索人类基因数据库(Human Gene Data Base,Gencards)、人类疾病相关基因和变异的信息的数据库(Database of Gene-Disease Associations,DisGeNET)、在线生物信息学和化学信息学数据库(Database for Drug and Drug Target Info,DrugBank)、人类疾病数据库(Human Disease Database,MalaCards)以获得AL疾病相关靶点,建立疾病靶点数据库。获取药物以及疾病的交集靶点后,在线画出两者共同靶点venn图;利用String11.5平台构建药物疾病蛋白互作网络;利用cytoscape3.8.2软件构建“药物—疾病—靶点—信号通路”网络,获取相关靶点网络拓扑参数。结果:经TcMSp\BAT-MAN—TcM和ETcM三个数据库检索,获得四鲜汤活性成分30个,相关靶点677个;通过Gencards、DrugBank、MalaCards和DisGeNET四个数据库获得12110个AL疾病潜在靶点;通过R4.2.2平台的ClusterProfiler软件包获得生物功能富集(Gene Ontology,GO)信息条目1011条,其中生物过程(Biological Process,BP)467条,分子功能(Molecular Function,MF)236条,细胞组分(Cellular Component,CC)308条;获得富集的京都基因与基因组百科全书(Kyoto Encyclopedia of Genesand Genomes,KEGG)信号通路220条,主要涉及化学致癌受体激活、脂质与动脉粥样硬化、流体剪切力与动脉粥样硬化、前列腺癌、AGE-RAGE信号通路在糖尿病并发症中的作用等;网络拓扑分析发现,四鲜汤治疗AL疾病作用的主要活性成分有γ-氨基丁酸、腺嘌呤核苷、槲皮素、东莨菪碱和蒲公英萜醇等化合物。结论:四鲜汤治疗AL是一种多成分多靶点多信号通路的共同调节过程,网络药理学为阐明四鲜汤治疗AL的作用机理提供了坚实的研究基础。
基金supported by grants from the National Natural Science Foundation of China(31401692,31901960,32272513,32001976)the Natural Science Foundation of Fujian Province(2019J01766,2023J011418,2020J05177)+3 种基金Fujian Provincial Science and Technology Key Project(2022NZ030014)External Cooperation Program of Fujian Academy of Agricultural Sciences(DWHZ-2024-23)State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crop Opening Project(SKL2019005)Project of Fujian Provincial Department of Education(JAT190627)。
文摘Avirulence effectors(Avrs),encoded by plant pathogens,can be recognized by plants harboring the corresponding resistance proteins,thereby initiating effector-triggered immunity(ETI).In susceptible plants,however,Avrs can function as effectors,facilitating infection via effector-triggered susceptibility(ETS).Mechanisms of Avr-mediated ETS remain largely unexplored.Here we report that the Magnaporthe oryzae effector Avr-PikD enters rice cells via the canonical cytoplasmic secretion pathway and suppresses rice basal defense.Avr-PikD interacts with an LSD1-like transcriptional activator AKIP30 of rice,and AKIP30 is also a positive regulator of rice immunity,whereas Avr-PikD impedes its nuclear localization and suppresses its transcriptional activity.In summary,M.oryzae delivers Avr-PikD into rice cells to facilitate ETS by inhibiting AKIP30-mediated transcriptional regulation of immune response against M.oryzae.
