Mast cells(MCs)play an important role in the immune system.Through connective tissues,mechanical stimuli activate intracellular calcium signaling pathways,induce a variety of mediators including leukotriene C4(LTC4)re...Mast cells(MCs)play an important role in the immune system.Through connective tissues,mechanical stimuli activate intracellular calcium signaling pathways,induce a variety of mediators including leukotriene C4(LTC4)release,and affect MCs’microenvironment.This paper focuses on MCs’intracellular calcium dynamics and LTC4 release responding to mechanical stimuli,explores signaling pathways in MCs and the effect of interstitial fluid flow on the transport of biological messengers and feedback in the MCs network.We use a mathematical model to show that(i)mechanical stimuli including shear stress induced by interstitial fluid flow can activate mechano-sensitive(MS)ion channels on MCs’membrane and allow Ca^(2+)entry,which increases intracellular Ca^(2+)concentration and leads to LTC4 release;(ii)LTC4 in the extracellular space(ECS)acts on surface cysteinyl leukotriene receptors(LTC4R)on adjacent cells,leading to Ca^(2+)influx through Ca^(2+)release-activated Ca^(2+)(CRAC)channels.An elevated intracellular Ca^(2+)concentration further stimulates LTC4 release and creates a positive feedback in the MCs network.The findings of this study may facilitate our understanding of the mechanotransduction process in MCs induced by mechanical stimuli,contribute to understanding of interstitial flow-related mechanobiology in MCs network,and provide a methodology for quantitatively analyzing physical treatment methods including acupuncture and massage in traditional Chinese medicine(TCM).展开更多
目的基于网络药理学探讨黄芪治疗类风湿关节炎合并肺间质纤维化的潜在作用机制。方法通过中药系统药理学技术平台(TCMSP)筛选出黄芪中的潜在活性成分,整合TCMSP数据库、靶点预测网站(Swiss Target Prediction)、人类孟德尔遗传数据库(OM...目的基于网络药理学探讨黄芪治疗类风湿关节炎合并肺间质纤维化的潜在作用机制。方法通过中药系统药理学技术平台(TCMSP)筛选出黄芪中的潜在活性成分,整合TCMSP数据库、靶点预测网站(Swiss Target Prediction)、人类孟德尔遗传数据库(OMIM)、GCBI文献数据库和人类基因数据库(Genecards),预测和筛选其治疗类风湿关节炎合并肺间质纤维化的作用靶点,运用韦恩图(Venny 2.1.0)对药物靶点和疾病靶点进行匹配。通过Systems Dock Web Site对主要活性成分和作用靶点进行分子对接验证。运用String数据库和Cytoscape软件构建绘制蛋白质相互作用网络,并用DisGeNET数据库对作用靶点进行类型归属。采用DAVID数据库对黄芪核心作用靶点进行生物功能和代谢通路分析,借助Cytoscape软件构建"药物-活性成分-核心靶点-通路-疾病"网络。结果筛选得到黄芪25个潜在活性成分,涉及9个作用靶点,与疾病靶点有关的活性成分有3个,主要通过调控TNF、NF-κB、MAPK、Toll样受体、TGF-β信号通路发挥治疗作用。结论黄芪对类风湿关节炎合并肺间质纤维化的治疗作用体现了中药多成分-多靶点-多途径的特点,为阐释其治疗类风湿关节炎合并肺间质纤维化的作用机制提供了科学依据。展开更多
目的:运用网络药理学与分子对接探寻肾炎防衰液治疗肾间质纤维化(RIF)的活性成分和作用机制。方法:通过TCMSP平台和BATMAN-TCM数据库筛选肾炎防衰液的活性成分及作用靶点;利用GeneCards数据库、DisGeNET平台获取RIF相关靶点;将两者的共...目的:运用网络药理学与分子对接探寻肾炎防衰液治疗肾间质纤维化(RIF)的活性成分和作用机制。方法:通过TCMSP平台和BATMAN-TCM数据库筛选肾炎防衰液的活性成分及作用靶点;利用GeneCards数据库、DisGeNET平台获取RIF相关靶点;将两者的共有靶点与其对应的中药成分通过Cytoscape3.7.2软件构建“成分-靶点”网络,利用Centiscape插件筛选出重要的活性成分;通过Clue GO 2.5.4插件对共有靶点进行京都基因与基因组百科全书(KEGG)富集分析,获取肾炎防衰液治疗RIF的潜在作用通路,采用Autodock和PyMol将核心成分和靶点蛋白进行分子对接及可视化处理。结果:肾炎防衰液经筛选后获得200个活性成分,76个参与治疗RIF的潜在靶点,可能通过参与糖尿病并发症的晚期糖基化终末产物(AGE)-晚期糖基化终末产物受体(RAGE)信号通路、流体剪切应力与动脉粥样硬化、肿瘤坏死因子(TNF)信号通路、松弛素信号通路、缺氧诱导因子-1(HIF-1)信号通路、白介素-17(IL-17)信号通路、血管内皮生长因子(VEGF)信号通路、脂肪细胞脂肪分解的调节、磷脂酰肌醇3-激酶(PI3K)-蛋白激酶B(Akt)信号通路、Toll样受体(TLRs)信号通路等途径参与RIF的治疗,分子对接结果提示肾炎防衰液的核心成分与INS、IL-6、ALB、VEGFA、TNF具有较好的亲和力。结论:肾炎防衰液的多种活性成分具改善RIF的作用,该方可能通过抑制炎症反应、调控自噬、调节糖脂代谢等途径延缓RIF的发展。展开更多
Astragalus and Angelica decoction(A&A)has been clinically used as a classical traditional Chinese medicine(TCM)formula in China for many years for the treatment of kidney diseases,especially renal interstitial fib...Astragalus and Angelica decoction(A&A)has been clinically used as a classical traditional Chinese medicine(TCM)formula in China for many years for the treatment of kidney diseases,especially renal interstitial fibrosis(RIF).However,the mechanisms underlying the therapeutic effects of A&A on RIF remains poorly understood.In the present study,systematic network pharmacology and effective experimental verification were utilized for the first time to elucidate the pharmacological efficacy and potential mechanism.The outcomes indicated that 22 active components and 87 target genes of A&A were identified and cross-referenced with RIF-associated genes,contributing to confirmation of 74 target genes of A&A for RIF.Pathway and functional enrichment analyses revealed that A&A had substantial effects on MAPK,PI3K-Akt and TNF signaling pathways.In addition,seven core targets with relatively higher betweenness and degree were identified in the constructed Chinese medicine material-chemical component-target-signal pathway network.Moreover,we verified the potential therapeutic effect of A&A in vivo(using a mouse model of RIF),confirming that A&A could effectively protect the kidney by regulating these target genes.The therapeutic effect of A&A on RIF could be attributed to its role in regulating the cell cycle,limiting the apoptosis,and inhibiting the inflammation.展开更多
基金supported by National Natural Science Foundation of China(No.81473750 and No.11202053)Shanghai Key Laboratory of Acupuncture Mechanis m And Acupoint Function(No.14DZ2260500)National Basic Research Program of China(No.2012CB518502).
文摘Mast cells(MCs)play an important role in the immune system.Through connective tissues,mechanical stimuli activate intracellular calcium signaling pathways,induce a variety of mediators including leukotriene C4(LTC4)release,and affect MCs’microenvironment.This paper focuses on MCs’intracellular calcium dynamics and LTC4 release responding to mechanical stimuli,explores signaling pathways in MCs and the effect of interstitial fluid flow on the transport of biological messengers and feedback in the MCs network.We use a mathematical model to show that(i)mechanical stimuli including shear stress induced by interstitial fluid flow can activate mechano-sensitive(MS)ion channels on MCs’membrane and allow Ca^(2+)entry,which increases intracellular Ca^(2+)concentration and leads to LTC4 release;(ii)LTC4 in the extracellular space(ECS)acts on surface cysteinyl leukotriene receptors(LTC4R)on adjacent cells,leading to Ca^(2+)influx through Ca^(2+)release-activated Ca^(2+)(CRAC)channels.An elevated intracellular Ca^(2+)concentration further stimulates LTC4 release and creates a positive feedback in the MCs network.The findings of this study may facilitate our understanding of the mechanotransduction process in MCs induced by mechanical stimuli,contribute to understanding of interstitial flow-related mechanobiology in MCs network,and provide a methodology for quantitatively analyzing physical treatment methods including acupuncture and massage in traditional Chinese medicine(TCM).
文摘目的基于网络药理学探讨黄芪治疗类风湿关节炎合并肺间质纤维化的潜在作用机制。方法通过中药系统药理学技术平台(TCMSP)筛选出黄芪中的潜在活性成分,整合TCMSP数据库、靶点预测网站(Swiss Target Prediction)、人类孟德尔遗传数据库(OMIM)、GCBI文献数据库和人类基因数据库(Genecards),预测和筛选其治疗类风湿关节炎合并肺间质纤维化的作用靶点,运用韦恩图(Venny 2.1.0)对药物靶点和疾病靶点进行匹配。通过Systems Dock Web Site对主要活性成分和作用靶点进行分子对接验证。运用String数据库和Cytoscape软件构建绘制蛋白质相互作用网络,并用DisGeNET数据库对作用靶点进行类型归属。采用DAVID数据库对黄芪核心作用靶点进行生物功能和代谢通路分析,借助Cytoscape软件构建"药物-活性成分-核心靶点-通路-疾病"网络。结果筛选得到黄芪25个潜在活性成分,涉及9个作用靶点,与疾病靶点有关的活性成分有3个,主要通过调控TNF、NF-κB、MAPK、Toll样受体、TGF-β信号通路发挥治疗作用。结论黄芪对类风湿关节炎合并肺间质纤维化的治疗作用体现了中药多成分-多靶点-多途径的特点,为阐释其治疗类风湿关节炎合并肺间质纤维化的作用机制提供了科学依据。
文摘目的:运用网络药理学与分子对接探寻肾炎防衰液治疗肾间质纤维化(RIF)的活性成分和作用机制。方法:通过TCMSP平台和BATMAN-TCM数据库筛选肾炎防衰液的活性成分及作用靶点;利用GeneCards数据库、DisGeNET平台获取RIF相关靶点;将两者的共有靶点与其对应的中药成分通过Cytoscape3.7.2软件构建“成分-靶点”网络,利用Centiscape插件筛选出重要的活性成分;通过Clue GO 2.5.4插件对共有靶点进行京都基因与基因组百科全书(KEGG)富集分析,获取肾炎防衰液治疗RIF的潜在作用通路,采用Autodock和PyMol将核心成分和靶点蛋白进行分子对接及可视化处理。结果:肾炎防衰液经筛选后获得200个活性成分,76个参与治疗RIF的潜在靶点,可能通过参与糖尿病并发症的晚期糖基化终末产物(AGE)-晚期糖基化终末产物受体(RAGE)信号通路、流体剪切应力与动脉粥样硬化、肿瘤坏死因子(TNF)信号通路、松弛素信号通路、缺氧诱导因子-1(HIF-1)信号通路、白介素-17(IL-17)信号通路、血管内皮生长因子(VEGF)信号通路、脂肪细胞脂肪分解的调节、磷脂酰肌醇3-激酶(PI3K)-蛋白激酶B(Akt)信号通路、Toll样受体(TLRs)信号通路等途径参与RIF的治疗,分子对接结果提示肾炎防衰液的核心成分与INS、IL-6、ALB、VEGFA、TNF具有较好的亲和力。结论:肾炎防衰液的多种活性成分具改善RIF的作用,该方可能通过抑制炎症反应、调控自噬、调节糖脂代谢等途径延缓RIF的发展。
基金The work was supported by the grants from National Natural Science Foundation of China(No.81773959 to C.F.Yuan and No.81974528 to C.F.Yuan)Open Foundation for Tumor Microenvironment and Immunotherapy Key Laboratory of Hubei province in China(No.2019KZL09 to C.F.Yuan)Health commission of Hubei Province scientific research project in China(No.WJ2019H527 to C.F.Yuan).
文摘Astragalus and Angelica decoction(A&A)has been clinically used as a classical traditional Chinese medicine(TCM)formula in China for many years for the treatment of kidney diseases,especially renal interstitial fibrosis(RIF).However,the mechanisms underlying the therapeutic effects of A&A on RIF remains poorly understood.In the present study,systematic network pharmacology and effective experimental verification were utilized for the first time to elucidate the pharmacological efficacy and potential mechanism.The outcomes indicated that 22 active components and 87 target genes of A&A were identified and cross-referenced with RIF-associated genes,contributing to confirmation of 74 target genes of A&A for RIF.Pathway and functional enrichment analyses revealed that A&A had substantial effects on MAPK,PI3K-Akt and TNF signaling pathways.In addition,seven core targets with relatively higher betweenness and degree were identified in the constructed Chinese medicine material-chemical component-target-signal pathway network.Moreover,we verified the potential therapeutic effect of A&A in vivo(using a mouse model of RIF),confirming that A&A could effectively protect the kidney by regulating these target genes.The therapeutic effect of A&A on RIF could be attributed to its role in regulating the cell cycle,limiting the apoptosis,and inhibiting the inflammation.
