目的:探究清肺通络膏对流感病毒诱导的肺炎大鼠肺组织中PI3K/AKT/NF-KB信号传导通路的调控机制。方法:将40只Wistar大鼠随机分为正常组,模型组,清肺通络膏高、中、低剂量组,除正常组外,采用鼻腔接种流感病毒FM1株诱导Wistar幼龄大鼠肺炎...目的:探究清肺通络膏对流感病毒诱导的肺炎大鼠肺组织中PI3K/AKT/NF-KB信号传导通路的调控机制。方法:将40只Wistar大鼠随机分为正常组,模型组,清肺通络膏高、中、低剂量组,除正常组外,采用鼻腔接种流感病毒FM1株诱导Wistar幼龄大鼠肺炎,在感染后各治疗组采用清肺通络膏贴敷于大鼠背部肺脏投影区治疗。观察各组大鼠的一般状态;肺组织形态学;采用免疫组化染色法检测各组大鼠肺组织PI3K,AKT,核因子NFB p65的表达水平。结果:与正常组相比,模型组大鼠肺组织中PI3K,AKT,NF-k B p65的表达显著增高(P<0.05),清肺通络膏高剂量组PI3K,AKT,NF-k B p65的表达较模型组明显降低(P<0.05)。结论:清肺通络膏通过抑制PI3K/AKT信号通路,使NF-k B p65表达降低,从而减轻了肺组织的病理损伤,达到治疗目的。展开更多
Background:Liver injury caused by sepsis seriously impairs the normal physiology of the liver.Wedelactone(WED)has an obvious anti-inflammatory effect against liver damage caused by various factors.Nevertheless,further...Background:Liver injury caused by sepsis seriously impairs the normal physiology of the liver.Wedelactone(WED)has an obvious anti-inflammatory effect against liver damage caused by various factors.Nevertheless,further research is needed to determine if WED might mitigate acute liver damage linked to sepsis by influencing macrophage polarization.Methods:We first assessed the effect of WED on lipopolysaccharides-triggered liver injury by biochemistry assay and tissue staining.Inflammatory factors were assessed using the ELISA kits.The expression of Cluster of Differentiation 86(CD86)and Cluster of Differentiation 206(CD206)was measured by immunofluorescence assay.The protein levels of inducible nitric oxide sythase(iNOS),Arginase 1(Arg-1),phosphatidylinositol 3-kinase(PI3K),protein kinase B(AKT),PI3K phosphorylation(p-PI3K),AKT phosphorylation(p-AKT),inhibitor of kappa B kinase(IKK),inhibitor of kappa B(IκB),and nuclear factor kappa-B(NF-κB)p65 were quantified by western blot analysis.Results:WED decreased the level of alanine aminotransferase(ALT),aspartate aminotransferase(AST),alkaline phosphatase(ALP)and malondialdehyde,and increased the activity of superoxide dismutase(SOD)and glutathione peroxidase(GSH-PX).Moreover,WED exerted effective anti-inflammatory effects by decreasing the level of Tumor necrosis factor-α(TNF-α)and Interleukin 6(IL-6)and increasing the level of Interleukin 10(IL-10)in serum and cells.WED not only decreased CD86 and iNOS expression but also increased CD206 and Arg-1 expression.WED also downregulated the increased expression of PI3K,AKT,p-PI3K,p-AKT,IKK,and NF-κB p65 induced by lipopolysaccharides,while up-regulated the decreased expression of IκB.Besides,LY294002 with WED decreased the expression of protein PI3K,AKT,p-PI3K,p-AKT,IKK and NF-κB p65,and raised the expression of IκBα.Conclusion:Wedelolactone could attenuate sepsis-associated acute liver injury,and its mechanism may be associated with balancing pro-inflammatory and anti-inflammatory by the regulation of M1/M2 macrophage polarization via the PI3K/AKT/NF-κB signaling pathway.展开更多
文摘目的:探究清肺通络膏对流感病毒诱导的肺炎大鼠肺组织中PI3K/AKT/NF-KB信号传导通路的调控机制。方法:将40只Wistar大鼠随机分为正常组,模型组,清肺通络膏高、中、低剂量组,除正常组外,采用鼻腔接种流感病毒FM1株诱导Wistar幼龄大鼠肺炎,在感染后各治疗组采用清肺通络膏贴敷于大鼠背部肺脏投影区治疗。观察各组大鼠的一般状态;肺组织形态学;采用免疫组化染色法检测各组大鼠肺组织PI3K,AKT,核因子NFB p65的表达水平。结果:与正常组相比,模型组大鼠肺组织中PI3K,AKT,NF-k B p65的表达显著增高(P<0.05),清肺通络膏高剂量组PI3K,AKT,NF-k B p65的表达较模型组明显降低(P<0.05)。结论:清肺通络膏通过抑制PI3K/AKT信号通路,使NF-k B p65表达降低,从而减轻了肺组织的病理损伤,达到治疗目的。
基金supported by the National Natural Science Foundation of China(No.81774190,81903832).
文摘Background:Liver injury caused by sepsis seriously impairs the normal physiology of the liver.Wedelactone(WED)has an obvious anti-inflammatory effect against liver damage caused by various factors.Nevertheless,further research is needed to determine if WED might mitigate acute liver damage linked to sepsis by influencing macrophage polarization.Methods:We first assessed the effect of WED on lipopolysaccharides-triggered liver injury by biochemistry assay and tissue staining.Inflammatory factors were assessed using the ELISA kits.The expression of Cluster of Differentiation 86(CD86)and Cluster of Differentiation 206(CD206)was measured by immunofluorescence assay.The protein levels of inducible nitric oxide sythase(iNOS),Arginase 1(Arg-1),phosphatidylinositol 3-kinase(PI3K),protein kinase B(AKT),PI3K phosphorylation(p-PI3K),AKT phosphorylation(p-AKT),inhibitor of kappa B kinase(IKK),inhibitor of kappa B(IκB),and nuclear factor kappa-B(NF-κB)p65 were quantified by western blot analysis.Results:WED decreased the level of alanine aminotransferase(ALT),aspartate aminotransferase(AST),alkaline phosphatase(ALP)and malondialdehyde,and increased the activity of superoxide dismutase(SOD)and glutathione peroxidase(GSH-PX).Moreover,WED exerted effective anti-inflammatory effects by decreasing the level of Tumor necrosis factor-α(TNF-α)and Interleukin 6(IL-6)and increasing the level of Interleukin 10(IL-10)in serum and cells.WED not only decreased CD86 and iNOS expression but also increased CD206 and Arg-1 expression.WED also downregulated the increased expression of PI3K,AKT,p-PI3K,p-AKT,IKK,and NF-κB p65 induced by lipopolysaccharides,while up-regulated the decreased expression of IκB.Besides,LY294002 with WED decreased the expression of protein PI3K,AKT,p-PI3K,p-AKT,IKK and NF-κB p65,and raised the expression of IκBα.Conclusion:Wedelolactone could attenuate sepsis-associated acute liver injury,and its mechanism may be associated with balancing pro-inflammatory and anti-inflammatory by the regulation of M1/M2 macrophage polarization via the PI3K/AKT/NF-κB signaling pathway.
