Objective To investigate and reveal the underlying mechanism of the effect of total saponins from Dioscoreae nipponica Makino(TSDN)on the arachidonic acid pathway in monosodium urate(MSU)crystal-induced M1-polarized m...Objective To investigate and reveal the underlying mechanism of the effect of total saponins from Dioscoreae nipponica Makino(TSDN)on the arachidonic acid pathway in monosodium urate(MSU)crystal-induced M1-polarized macrophages.Methods M1 polarization of RAW264.7 cells were induced by 1µg/mL lipopolysaccharide(LPS).The methylthiazolyldiphenyl-tetrazolium bromide method was then used to screen the concentration of TSDN.MSU(500µg/mL)was used to induce the gouty arthritis model.Afterwards,10µg/L TSDN and 8µmol/L celecoxib,which was used as a positive control,were added to the above LPS and MSU-induced cells for 24 h.The mRNA and protein expressions of cyclooxygenase(COX)2,5-lipoxygenase(5-LOX),microsomal prostaglandin E synthase derived eicosanoids(mPGES)-1,leukotriene B(LTB)4,cytochrome P450(CYP)4A,and prostaglandin E_(2)(PGE_(2))were tested by real-time polymerase chain reaction and Western blotting,respectively.The enzyme-linked immunosorbent assay was used to test the contents of M1 markers,including inducible nitric oxid synthase(NOS)2,CD80,and CD86.Results TSDN inhibited the proliferation of M1 macrophages and decreased both the mRNA and protein expressions of COX2,5-LOX,CYP4A,LTB4,and PGE_(2)(P<0.01)while increased the mRNA and protein expression of mPGES-1(P<0.05 or P<0.01).TSDN could also significantly decrease the contents of NOS2,CD80,and CD86(P<0.01).Conclusion TSDN has an anti-inflammation effect on gouty arthritis in an in vitro model by regulating arachidonic acid signaling pathway.展开更多
目的：比较分析穿山龙地上部分和根茎总皂苷抗炎活性,为穿山龙地上部分的开发利用提供实验依据。方法：采用小鼠耳廓肿胀实验、小鼠棉球肉芽肿法和小鼠腹腔液渗出法对同时、同地采收的穿山龙地上部分和根茎水提取物的抗炎作用进行比较...目的：比较分析穿山龙地上部分和根茎总皂苷抗炎活性,为穿山龙地上部分的开发利用提供实验依据。方法：采用小鼠耳廓肿胀实验、小鼠棉球肉芽肿法和小鼠腹腔液渗出法对同时、同地采收的穿山龙地上部分和根茎水提取物的抗炎作用进行比较研究。结果：穿山龙地上部分总皂苷（to-tal saponins of aerial part of Dioscorea nipponica Makino,TSAPDN）可明显减轻小鼠耳肿胀,降低肉芽肿的重量,减少小鼠腹腔液的渗出,与空白对照组比较差异有显著性（P〈0.05-0.001）;与根茎总皂苷（total saponins of the radicular of Dioscorea nipponica Makino,TSRDN）比较差异无显著性（P〉0.05）。结论：TSAPDN有显著的抗炎作用,其抗炎活性与根茎相近。展开更多
基金Supported by Joint Guidance Project of Heilongjiang Natural Science Foundation(No.LH2021H099)Start Fund of Postdoctoral Research in Heilongjiang Province(No.LBH-Q19188)+3 种基金Outstanding Youth Development Fund of Heilongjiang University of Chinese Medicine(No.2019JC06)Project of Heilongjiang Administration of Traditional Chinese Medicine(No.ZHY202094)Graduate Innovative Scientific Research Project of Heilongjiang University of Chinese Medicine(No.2020yjscx057)Natural Science Foundation of Heilongjiang Province(Key project,No.ZD2020H006)。
文摘Objective To investigate and reveal the underlying mechanism of the effect of total saponins from Dioscoreae nipponica Makino(TSDN)on the arachidonic acid pathway in monosodium urate(MSU)crystal-induced M1-polarized macrophages.Methods M1 polarization of RAW264.7 cells were induced by 1µg/mL lipopolysaccharide(LPS).The methylthiazolyldiphenyl-tetrazolium bromide method was then used to screen the concentration of TSDN.MSU(500µg/mL)was used to induce the gouty arthritis model.Afterwards,10µg/L TSDN and 8µmol/L celecoxib,which was used as a positive control,were added to the above LPS and MSU-induced cells for 24 h.The mRNA and protein expressions of cyclooxygenase(COX)2,5-lipoxygenase(5-LOX),microsomal prostaglandin E synthase derived eicosanoids(mPGES)-1,leukotriene B(LTB)4,cytochrome P450(CYP)4A,and prostaglandin E_(2)(PGE_(2))were tested by real-time polymerase chain reaction and Western blotting,respectively.The enzyme-linked immunosorbent assay was used to test the contents of M1 markers,including inducible nitric oxid synthase(NOS)2,CD80,and CD86.Results TSDN inhibited the proliferation of M1 macrophages and decreased both the mRNA and protein expressions of COX2,5-LOX,CYP4A,LTB4,and PGE_(2)(P<0.01)while increased the mRNA and protein expression of mPGES-1(P<0.05 or P<0.01).TSDN could also significantly decrease the contents of NOS2,CD80,and CD86(P<0.01).Conclusion TSDN has an anti-inflammation effect on gouty arthritis in an in vitro model by regulating arachidonic acid signaling pathway.
文摘目的：比较分析穿山龙地上部分和根茎总皂苷抗炎活性,为穿山龙地上部分的开发利用提供实验依据。方法：采用小鼠耳廓肿胀实验、小鼠棉球肉芽肿法和小鼠腹腔液渗出法对同时、同地采收的穿山龙地上部分和根茎水提取物的抗炎作用进行比较研究。结果：穿山龙地上部分总皂苷（to-tal saponins of aerial part of Dioscorea nipponica Makino,TSAPDN）可明显减轻小鼠耳肿胀,降低肉芽肿的重量,减少小鼠腹腔液的渗出,与空白对照组比较差异有显著性（P〈0.05-0.001）;与根茎总皂苷（total saponins of the radicular of Dioscorea nipponica Makino,TSRDN）比较差异无显著性（P〉0.05）。结论：TSAPDN有显著的抗炎作用,其抗炎活性与根茎相近。
