Objective:To investigate the effects of Schisandra B on proliferation,migration,invasion of bladder cancer and to further investigate its molecular mechanism.Methods:Bladder cancer cells were subjected to different co...Objective:To investigate the effects of Schisandra B on proliferation,migration,invasion of bladder cancer and to further investigate its molecular mechanism.Methods:Bladder cancer cells were subjected to different concentrations of Schisandra B solution(0,20,40,80μmol/L).CCK-8 assay was used to detect the effect of schisandra B on bladder cancer cell proliferation.Transwell migration assay and wound healing assay were used to detect the effect of Schisandra B on the migration of bladder cancer cells.Transwell invasion assay was used to detect the effect of schisandra B on invasion ability of bladder cancer cells.The expression levels of intracellularβ-catenin and c-myc protein were measured by western blot.Results:Schisandra B inhibited the proliferation of T24 and UM-UC-3 cells in a concentration and time dependent manner(P<0.05).The rate of wound healing and number of migration and invasion cells decreased with the increase of Schisandra B concentration(P<0.05).The expression ofβ-catenin and c-myc decreased after treatment with Schisandra B in bladder cancer cells(P<0.05).Conclusion:Schisandra B can inhibit the proliferation,migration and invasion of human bladder cancer T24 and UM-UC-3 cells,and the main mechanism for its inhibitory effect may be related to the inactivation of the Wnt/β-catenin signaling pathway.展开更多
Objective:To investigate the effect of the ethanolic extract of Rosa laevigata Michx.fruit on rats with mesangial proliferative glomerulonephritis based on the NLRP3 inflammasome pathway.Methods:Thirty Wistar rats wer...Objective:To investigate the effect of the ethanolic extract of Rosa laevigata Michx.fruit on rats with mesangial proliferative glomerulonephritis based on the NLRP3 inflammasome pathway.Methods:Thirty Wistar rats were divided into three groups,a blank control group,a diabetic nephropathy(DN)model group,and an ethanolic extract intervention group,according to the random number table method,with 10 rats in each group.One day before the experiment,basic feeding was initiated for all the rats;the changes in activity and weight of each group of rats were observed and recorded after 7 d,and a rat model of renal function injury was established after 1 d.Results:Compared with the control group,the model group had significantly higher kidney/body ratio,24 h urine protein,serum creatinine(SCr),blood urea nitrogen(BUN),glomerular mesangial cell(GMC)count,and extracellular matrix(ECM)positive area ratio(P<0.05);the same indicators were significantly lower in the intervention group than in the model group(P<0.05).The NLRP3 inflammasome pathway in renal intrinsic cells was activated in the intervention group.The overactivation of NLRP3 inflammasome is known to promote interleukin(IL)-1βrelease,which was inhibited in the intervention group.Conclusion:The ethanolic extract of Rosa laevigata Michx.fruit has a protective effect on renal intrinsic cells and may be related to NLRP3 inflammasome pathway,suggesting that the fruit of Rosa laevigata Michx.has a potential role in protecting renal intrinsic cells from inflammatory damage.NLRP3 inflammasomes are involved in the development of various chronic inflammatory diseases,such as acute and chronic glomerulonephritis and renal fibrosis.展开更多
目的:基于网络药理学方法分析五味子防治稽留流产的潜在作用机制,并通过实验进行验证。方法:运用系统药理学方法查找并从中药系统药理学数据库和分析平台(Traditional Chinese Medicine Systems Pharmacology Database and Analysis Pla...目的:基于网络药理学方法分析五味子防治稽留流产的潜在作用机制,并通过实验进行验证。方法:运用系统药理学方法查找并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,https://old.tcmsp-e.com/tcmsp.php)筛选五味子的活性成分及靶点,查找稽留流产相关基因,确定五味子防治稽留流产的靶点。利用Cytoscape构建“药物成分-靶点”网络,筛选关键化合物。利用String建立蛋白质-蛋白质相互作用(protein-protein interaction,PPI)网络,并通过Cytoscape-CytoNCA拓扑分析筛选核心靶点。通过对靶基因进行基因本体(gene ontology,GO)和京都基因与基因组百科全书(kyoto encyclopedia of genes and genomes,KEGG)分析,以预测其可能的信号通路及机制。最后借助人绒毛膜外滋养层细胞系(HTR-8/SVneo)利用实时荧光定量聚合酶链反应(real-time fluorescence quantitative polymerase chain reaction,qRT-PCR)检测和蛋白质印迹(Western blotting)检测进行机制验证。结果:从TCMSP数据库中鉴定了7种五味子活性成分。PPI网络表明雄激素受体(androgen receptor,AR)、雌激素受体(estrogen receptor,ER)、环氧合酶-2(cyclooxygenase-2,COX-2)、核受体辅激活因子2(nuclear receptor coactivator 2,NCOA2)和乙酰胆碱酯酶(acetylcholine esterase,ACHE)可能是五味子防治稽留流产的核心作用靶点。GO富集分析获得44个细胞生物学过程,KEGG途径富集分析获得2个相关信号通路,主要包括甲状腺激素信号通路和雌激素信号通路;在利用细胞模型验证机制过程中发现,二羟环氧苯并芘[benzo(a)pyren-7,8-dihydrodiol-9,10-epoxide,BPDE]染毒后的细胞中AR、ER和COX-2的蛋白质和(或)mRNA水平高于正常细胞,而先使用五味子乙素(Schisandrin B,Sch B)预处理后再染毒BPDE的细胞中AR、ER和COX-2的蛋白质和(或)mRNA水平均较未用Sch B预处理的细胞降低,而NCOA2和ACHE的蛋白质和(或)mRNA水平变化不明显。结论:五味子可通过抗炎和调节AR、ER发挥防治稽留流产的作用,这一保护作用可能是通过雌激素信号通路来实现的。展开更多
目的基于网络药理学和分子对接方法探究“麦冬-五味子”药对治疗心肌纤维化的作用机制。方法运用TCMSP数据库及HERB数据库筛选“麦冬-五味子”药对药物成分和靶点,运用GeneCards数据库、Disgenet数据库、OMIM数据库筛选疾病靶点,获取共...目的基于网络药理学和分子对接方法探究“麦冬-五味子”药对治疗心肌纤维化的作用机制。方法运用TCMSP数据库及HERB数据库筛选“麦冬-五味子”药对药物成分和靶点,运用GeneCards数据库、Disgenet数据库、OMIM数据库筛选疾病靶点,获取共同靶点;通过Cytoscape软件构建“药物活性成分-疾病-靶点”网络模型;利用微生信平台进行基因本体论功能富集分析(gene ontology,GO)和京都基因与基因组百科全书富集分析(kyoto encyclopedia of genes and genomes,KEGG);利用STRING数据库构建蛋白互作网络;通过Auto Dock Tools1.5.6软件进行分子对接验证。结果“麦冬-五味子”药对中共筛选得到戈米辛M2、五味子酚乙、麦冬二氢高异黄酮B等85个活性成分,主要作用于HSP90AA1、AKT1、SRC等163个心肌纤维化靶点上,主要富集在脂质与动脉粥样硬化信号通路、糖尿病并发症中的age-rage信号通路、癌症发病途径信号通路等相关通路上。结论“麦冬-五味子”药对主要通过调控炎性反应、氧化应激、脂质沉积、细胞增殖凋亡等多种生物过程来抑制心肌纤维化。展开更多
基金Guangdong Provincial Basic and Applied Basic Research Fund(No.2022A1515012195)Guangdong Provincial Bureau of Traditional Chinese Medicine Research Project(No.20211221,No.20222099)Guangdong Medical University Research Fund(No.4SG20158G)。
文摘Objective:To investigate the effects of Schisandra B on proliferation,migration,invasion of bladder cancer and to further investigate its molecular mechanism.Methods:Bladder cancer cells were subjected to different concentrations of Schisandra B solution(0,20,40,80μmol/L).CCK-8 assay was used to detect the effect of schisandra B on bladder cancer cell proliferation.Transwell migration assay and wound healing assay were used to detect the effect of Schisandra B on the migration of bladder cancer cells.Transwell invasion assay was used to detect the effect of schisandra B on invasion ability of bladder cancer cells.The expression levels of intracellularβ-catenin and c-myc protein were measured by western blot.Results:Schisandra B inhibited the proliferation of T24 and UM-UC-3 cells in a concentration and time dependent manner(P<0.05).The rate of wound healing and number of migration and invasion cells decreased with the increase of Schisandra B concentration(P<0.05).The expression ofβ-catenin and c-myc decreased after treatment with Schisandra B in bladder cancer cells(P<0.05).Conclusion:Schisandra B can inhibit the proliferation,migration and invasion of human bladder cancer T24 and UM-UC-3 cells,and the main mechanism for its inhibitory effect may be related to the inactivation of the Wnt/β-catenin signaling pathway.
基金This work was supported by the Health Commission of Hebei Province under the project Chuanxiong Extract Improves Inflammatory Response in Rats with Pyelonephritis Through IL-6/STAT3 Signaling Pathway(Project Number:20231486).
文摘Objective:To investigate the effect of the ethanolic extract of Rosa laevigata Michx.fruit on rats with mesangial proliferative glomerulonephritis based on the NLRP3 inflammasome pathway.Methods:Thirty Wistar rats were divided into three groups,a blank control group,a diabetic nephropathy(DN)model group,and an ethanolic extract intervention group,according to the random number table method,with 10 rats in each group.One day before the experiment,basic feeding was initiated for all the rats;the changes in activity and weight of each group of rats were observed and recorded after 7 d,and a rat model of renal function injury was established after 1 d.Results:Compared with the control group,the model group had significantly higher kidney/body ratio,24 h urine protein,serum creatinine(SCr),blood urea nitrogen(BUN),glomerular mesangial cell(GMC)count,and extracellular matrix(ECM)positive area ratio(P<0.05);the same indicators were significantly lower in the intervention group than in the model group(P<0.05).The NLRP3 inflammasome pathway in renal intrinsic cells was activated in the intervention group.The overactivation of NLRP3 inflammasome is known to promote interleukin(IL)-1βrelease,which was inhibited in the intervention group.Conclusion:The ethanolic extract of Rosa laevigata Michx.fruit has a protective effect on renal intrinsic cells and may be related to NLRP3 inflammasome pathway,suggesting that the fruit of Rosa laevigata Michx.has a potential role in protecting renal intrinsic cells from inflammatory damage.NLRP3 inflammasomes are involved in the development of various chronic inflammatory diseases,such as acute and chronic glomerulonephritis and renal fibrosis.
文摘目的基于网络药理学和分子对接方法探究“麦冬-五味子”药对治疗心肌纤维化的作用机制。方法运用TCMSP数据库及HERB数据库筛选“麦冬-五味子”药对药物成分和靶点,运用GeneCards数据库、Disgenet数据库、OMIM数据库筛选疾病靶点,获取共同靶点;通过Cytoscape软件构建“药物活性成分-疾病-靶点”网络模型;利用微生信平台进行基因本体论功能富集分析(gene ontology,GO)和京都基因与基因组百科全书富集分析(kyoto encyclopedia of genes and genomes,KEGG);利用STRING数据库构建蛋白互作网络;通过Auto Dock Tools1.5.6软件进行分子对接验证。结果“麦冬-五味子”药对中共筛选得到戈米辛M2、五味子酚乙、麦冬二氢高异黄酮B等85个活性成分,主要作用于HSP90AA1、AKT1、SRC等163个心肌纤维化靶点上,主要富集在脂质与动脉粥样硬化信号通路、糖尿病并发症中的age-rage信号通路、癌症发病途径信号通路等相关通路上。结论“麦冬-五味子”药对主要通过调控炎性反应、氧化应激、脂质沉积、细胞增殖凋亡等多种生物过程来抑制心肌纤维化。
