BACKGROUND Liver fibrosis is a common health problem worldwide and there is still a lack of effective medicines.The Chinese herbal medicine,Gan Shen Fu Fang(GSFF)is composed of salvianolic acid B and diammonium glycyr...BACKGROUND Liver fibrosis is a common health problem worldwide and there is still a lack of effective medicines.The Chinese herbal medicine,Gan Shen Fu Fang(GSFF)is composed of salvianolic acid B and diammonium glycyrrhizinate.In this study,we observed the effects of GSFF on liver fibrosis in vivo and in vitro in an attempt to provide some hope for the treatment.AIM To observe the effects of GSFF on liver fibrosis in vivo and in vitro and investigate the mechanism from the perspective of the inflammatory response and extracellular signal-regulated kinase(ERK)phosphorylation.METHODS Common bile duct-ligated rats were used for in vivo experiments.Hepatic stellate cells-T6(HSC-T6)cells were used for in vitro experiments.Hematoxylin and eosin staining and Masson staining,biochemical assays,hydroxyproline(Hyp)assays,enzyme-linked immunoasorbent assay and western blotting were performed to evaluate the degree of liver fibrosis,liver function,the inflammatory response and ERK phosphorylation.The CCK8 assay,immunofluorescence and western blotting were applied to test the effect of GSFF on HSC-T6 cell activation and determine whether GSFF had an effect on ERK phosphorylation in HSC-T6 cells.RESULTS GSFF improved liver function and inhibited liver fibrosis in common bile ductligated rats after 3 wk of treatment,as demonstrated by histological changes,hydroxyproline assays and collagen I concentrations.GSFF alleviated inflammatory cell infiltration and reduced the synthesis of pro-inflammatory cytokines[tumor necrosis factor-α(TNF-α)and interlukin-1β]and NF-κB.In addition,GSFF decreased ERK phosphorylation.In vitro,GSFF inhibited the viability of HSC-T6 cells with and without transforming growth factorβ1(TGF-β1)stimulation and decreased the synthesis of collagen I.GSFF had the greatest effect at a concentration of 0.5μmol/L.GSFF inhibited the expression ofα-smooth muscle actin(α-SMA),a marker of HSC activation,in HSC-T6 cells.Consistent with the in vivo results,GSFF also inhibited the phosphorylation of ERK and downregulated the expression of NF-κB.CONCLUSION GSFF inhibited liver fibrosis progression in vivo and HSC-T6 cell activation in vitro.These effects may be related to an alleviated inflammatory response and downregulated ERK phosphorylation.展开更多
[目的]探究化痰行瘀汤抗大鼠肝纤维化作用的可能机制。[方法]取清洁级健康成年Wistar大鼠60只,随机抽取10只作为正常对照组,剩余50只采用橄榄油溶液皮下注射四氯化碳(CCL4)法制作肝纤维化模型,确认造模成功后按随机数字表法分为5组,即...[目的]探究化痰行瘀汤抗大鼠肝纤维化作用的可能机制。[方法]取清洁级健康成年Wistar大鼠60只,随机抽取10只作为正常对照组,剩余50只采用橄榄油溶液皮下注射四氯化碳(CCL4)法制作肝纤维化模型,确认造模成功后按随机数字表法分为5组,即模型对照组、复方鳖甲软肝片组、化痰行瘀汤低剂量组、化痰行瘀汤中剂量组、化痰行瘀汤高剂量组。5组分别以相应药物连续干预6W,6W后比较各组Ⅳ型胶原(C-Ⅳ)、层黏连蛋白(LN)、α-平滑肌肌动蛋白(α-SMA)、骨桥蛋白(OPN)和转化生长因子β1(TGF-β1)蛋白、TGF-β1 m RNA的表达。[结果]与正常对照组比较,干预6W后复方鳖甲软肝片组、化痰行瘀汤中剂量组、化痰行瘀汤高剂量组能明显降低C-Ⅳ蛋白的表达(P<0.05);化痰行瘀汤各剂量组LN蛋白表达明显下降(P<0.05);化痰行瘀汤各剂量组与复方鳖甲软肝片组α-SMA表达都明显下降(P<0.05);复方鳖甲软肝片组、化痰行瘀汤低剂量组、化痰行瘀汤高剂量组OPN蛋白表达明显下降(P<0.05);化痰行瘀汤各剂量组TGF-β1蛋白表达明显减少(P<0.05);化痰行瘀汤高剂量组TGF-β1m RNA表达明显下降(P<0.05)。[结论]化痰行瘀汤能有效改善肝纤维化,且与剂量存在一定相关性。展开更多
基金Supported by the Innovation Team of the Beijing University of Chinese Medicine,No.2019-JYB-TD-006the National Natural Science Foundation of China,No.81873099Scientific Research Support Plan for the Construction of Doctoral Program of University of Tibetan Medicine.
文摘BACKGROUND Liver fibrosis is a common health problem worldwide and there is still a lack of effective medicines.The Chinese herbal medicine,Gan Shen Fu Fang(GSFF)is composed of salvianolic acid B and diammonium glycyrrhizinate.In this study,we observed the effects of GSFF on liver fibrosis in vivo and in vitro in an attempt to provide some hope for the treatment.AIM To observe the effects of GSFF on liver fibrosis in vivo and in vitro and investigate the mechanism from the perspective of the inflammatory response and extracellular signal-regulated kinase(ERK)phosphorylation.METHODS Common bile duct-ligated rats were used for in vivo experiments.Hepatic stellate cells-T6(HSC-T6)cells were used for in vitro experiments.Hematoxylin and eosin staining and Masson staining,biochemical assays,hydroxyproline(Hyp)assays,enzyme-linked immunoasorbent assay and western blotting were performed to evaluate the degree of liver fibrosis,liver function,the inflammatory response and ERK phosphorylation.The CCK8 assay,immunofluorescence and western blotting were applied to test the effect of GSFF on HSC-T6 cell activation and determine whether GSFF had an effect on ERK phosphorylation in HSC-T6 cells.RESULTS GSFF improved liver function and inhibited liver fibrosis in common bile ductligated rats after 3 wk of treatment,as demonstrated by histological changes,hydroxyproline assays and collagen I concentrations.GSFF alleviated inflammatory cell infiltration and reduced the synthesis of pro-inflammatory cytokines[tumor necrosis factor-α(TNF-α)and interlukin-1β]and NF-κB.In addition,GSFF decreased ERK phosphorylation.In vitro,GSFF inhibited the viability of HSC-T6 cells with and without transforming growth factorβ1(TGF-β1)stimulation and decreased the synthesis of collagen I.GSFF had the greatest effect at a concentration of 0.5μmol/L.GSFF inhibited the expression ofα-smooth muscle actin(α-SMA),a marker of HSC activation,in HSC-T6 cells.Consistent with the in vivo results,GSFF also inhibited the phosphorylation of ERK and downregulated the expression of NF-κB.CONCLUSION GSFF inhibited liver fibrosis progression in vivo and HSC-T6 cell activation in vitro.These effects may be related to an alleviated inflammatory response and downregulated ERK phosphorylation.
文摘[目的]探究化痰行瘀汤抗大鼠肝纤维化作用的可能机制。[方法]取清洁级健康成年Wistar大鼠60只,随机抽取10只作为正常对照组,剩余50只采用橄榄油溶液皮下注射四氯化碳(CCL4)法制作肝纤维化模型,确认造模成功后按随机数字表法分为5组,即模型对照组、复方鳖甲软肝片组、化痰行瘀汤低剂量组、化痰行瘀汤中剂量组、化痰行瘀汤高剂量组。5组分别以相应药物连续干预6W,6W后比较各组Ⅳ型胶原(C-Ⅳ)、层黏连蛋白(LN)、α-平滑肌肌动蛋白(α-SMA)、骨桥蛋白(OPN)和转化生长因子β1(TGF-β1)蛋白、TGF-β1 m RNA的表达。[结果]与正常对照组比较,干预6W后复方鳖甲软肝片组、化痰行瘀汤中剂量组、化痰行瘀汤高剂量组能明显降低C-Ⅳ蛋白的表达(P<0.05);化痰行瘀汤各剂量组LN蛋白表达明显下降(P<0.05);化痰行瘀汤各剂量组与复方鳖甲软肝片组α-SMA表达都明显下降(P<0.05);复方鳖甲软肝片组、化痰行瘀汤低剂量组、化痰行瘀汤高剂量组OPN蛋白表达明显下降(P<0.05);化痰行瘀汤各剂量组TGF-β1蛋白表达明显减少(P<0.05);化痰行瘀汤高剂量组TGF-β1m RNA表达明显下降(P<0.05)。[结论]化痰行瘀汤能有效改善肝纤维化,且与剂量存在一定相关性。
