Acute respiratory infection caused by severe acute respiratory syndrome coronavirus 2(SARS-CoV-2)had caused a global pandemic since 2019,and posed a serious threat to global health security.Traditional Chinese medicin...Acute respiratory infection caused by severe acute respiratory syndrome coronavirus 2(SARS-CoV-2)had caused a global pandemic since 2019,and posed a serious threat to global health security.Traditional Chinese medicine(TCM)has played an indispensable role in the battle against the epidemic.Many components originated from TCMs were found to inhibit the production of SARS-CoV-23C-like protease(3CLpro)and papain-like protease(PLpro),which are two promising therapeutic targets to inhibit SARS-CoV-2.This study describes a systematic investigation of the roots and rhizomes of Sophora tonkinensis,which results in the characterization of 12 new flavonoids,including seven prenylated flavanones(1−7),one prenylated flavonol(8),two prenylated chalcones(9−10),one isoflavanone(11),and one isoflavan dimer(12),together with 43 known compounds(13−55).Their structures including the absolute configurations were elucidated by comprehensive analysis of MS,1D and 2D NMR data,and time-dependent density functional theory electronic circular dichroism(TDDFT ECD)calculations.Compounds 12 and 51 exhibited inhibitory effects against SARS-CoV-23CLpro with IC_(50) values of 34.89 and 19.88μmol·L^(−1),repectively while compounds 9,43 and 47 exhibited inhibitory effects against PLpro with IC_(50) values of 32.67,79.38,and 16.74μmol·L^(−1),respectively.展开更多
目的基于网络药理学、动物实验及荧光定量PCR技术阐明山豆根改善急性咽炎的分子机制。方法利用中药系统药理学分析平台(Traditional Chinese Medicine systems pharmacology database and analysis platform,TCMSP)数据库收集山豆根的...目的基于网络药理学、动物实验及荧光定量PCR技术阐明山豆根改善急性咽炎的分子机制。方法利用中药系统药理学分析平台(Traditional Chinese Medicine systems pharmacology database and analysis platform,TCMSP)数据库收集山豆根的活性成分和作用靶点。通过GeneCards、OMIM、DrugBank和Disgenet数据库获取急性咽炎相关的靶点。筛选获得两者的共同靶标后,利用STRING数据库进行构建蛋白互作网络,采用Metascape平台进行通路分析。同时应用Cytoscape软件构建“中药-疾病-成分-靶点”网络和“中药-疾病-成分-靶点-通路”网络。建立大鼠急性咽炎模型,研究山豆根水提取物对大鼠急性咽炎的影响。利用荧光定量PCR技术研究山豆根对大鼠急性咽炎模型咽部组织关键通路上的关键基因靶点的影响。结果该实验获取山豆根活性成分21个的相关作用靶点509个,获取急性咽炎相关的靶点2167个,山豆根与急性咽炎的共同靶点194个。KEGG通路分析筛选了344条相关信号通路,其中显示IL-17信号通路、NF-kappa B信号通路和白细胞跨内皮迁移通路可能在山豆根改善急性咽炎的过程中起关键作用。动物实验表明,山豆根水提取物低剂量组对急性咽炎治疗效果较好。荧光定量PCR实验结果表明,山豆根低剂量组明显下调了白细胞跨内皮迁移通路ITGB2、PIK3CA、PIK3CD和PTPN11基因的表达水平(P<0.05)。结论山豆根改善急性咽炎具有多成分、多靶点、多通路协同作用的特点。展开更多
基金This work was supported from the National Natural Science Foundation of China(Nos.82173696 and 21920102003)the Science and Technology Commission of Shanghai Municipality(Nos.20431900200 and 20430780300)+1 种基金the Strategic Priority Research Program of Chinese Academy of Sciences(Nos.SIMM010110 and SIMM040302)the Sustainable Development of Precious Traditional Chinese Medicine Resources(No.2060302-2001-01).
文摘Acute respiratory infection caused by severe acute respiratory syndrome coronavirus 2(SARS-CoV-2)had caused a global pandemic since 2019,and posed a serious threat to global health security.Traditional Chinese medicine(TCM)has played an indispensable role in the battle against the epidemic.Many components originated from TCMs were found to inhibit the production of SARS-CoV-23C-like protease(3CLpro)and papain-like protease(PLpro),which are two promising therapeutic targets to inhibit SARS-CoV-2.This study describes a systematic investigation of the roots and rhizomes of Sophora tonkinensis,which results in the characterization of 12 new flavonoids,including seven prenylated flavanones(1−7),one prenylated flavonol(8),two prenylated chalcones(9−10),one isoflavanone(11),and one isoflavan dimer(12),together with 43 known compounds(13−55).Their structures including the absolute configurations were elucidated by comprehensive analysis of MS,1D and 2D NMR data,and time-dependent density functional theory electronic circular dichroism(TDDFT ECD)calculations.Compounds 12 and 51 exhibited inhibitory effects against SARS-CoV-23CLpro with IC_(50) values of 34.89 and 19.88μmol·L^(−1),repectively while compounds 9,43 and 47 exhibited inhibitory effects against PLpro with IC_(50) values of 32.67,79.38,and 16.74μmol·L^(−1),respectively.
文摘目的基于网络药理学、动物实验及荧光定量PCR技术阐明山豆根改善急性咽炎的分子机制。方法利用中药系统药理学分析平台(Traditional Chinese Medicine systems pharmacology database and analysis platform,TCMSP)数据库收集山豆根的活性成分和作用靶点。通过GeneCards、OMIM、DrugBank和Disgenet数据库获取急性咽炎相关的靶点。筛选获得两者的共同靶标后,利用STRING数据库进行构建蛋白互作网络,采用Metascape平台进行通路分析。同时应用Cytoscape软件构建“中药-疾病-成分-靶点”网络和“中药-疾病-成分-靶点-通路”网络。建立大鼠急性咽炎模型,研究山豆根水提取物对大鼠急性咽炎的影响。利用荧光定量PCR技术研究山豆根对大鼠急性咽炎模型咽部组织关键通路上的关键基因靶点的影响。结果该实验获取山豆根活性成分21个的相关作用靶点509个,获取急性咽炎相关的靶点2167个,山豆根与急性咽炎的共同靶点194个。KEGG通路分析筛选了344条相关信号通路,其中显示IL-17信号通路、NF-kappa B信号通路和白细胞跨内皮迁移通路可能在山豆根改善急性咽炎的过程中起关键作用。动物实验表明,山豆根水提取物低剂量组对急性咽炎治疗效果较好。荧光定量PCR实验结果表明,山豆根低剂量组明显下调了白细胞跨内皮迁移通路ITGB2、PIK3CA、PIK3CD和PTPN11基因的表达水平(P<0.05)。结论山豆根改善急性咽炎具有多成分、多靶点、多通路协同作用的特点。
