目的探讨PI3K抑制剂林普利塞(Linperlisib,YY-20394)对弥漫大B细胞淋巴瘤(diffuse large B-cell lymphoma,DLBCL)的抗肿瘤效应及其作用机制。方法采用CCK-8法检测不同浓度YY-20394对SU-DHL-4细胞(GCB亚型)和U2932细胞(ABC亚型)增殖能力...目的探讨PI3K抑制剂林普利塞(Linperlisib,YY-20394)对弥漫大B细胞淋巴瘤(diffuse large B-cell lymphoma,DLBCL)的抗肿瘤效应及其作用机制。方法采用CCK-8法检测不同浓度YY-20394对SU-DHL-4细胞(GCB亚型)和U2932细胞(ABC亚型)增殖能力的影响,并计算出24 h时药物的IC_(25)、IC_(50)、IC_(75)。采用流式细胞术检测IC_(25)、IC_(50)和IC_(75)浓度YY-20394对SU-DHL-4细胞和U2932细胞凋亡的影响。采用高通量RNA测序技术(RNA-Seq)检测药物作用前后各组细胞基因表达的变化,对差异表达基因进行KEGG信号通路分析和GO富集分析,并且对各组细胞基因表达数据进行GSEA富集分析。结果在YY-20394作用下,SU-DHL-4细胞增殖抑制率和细胞凋亡率增加(P<0.05),但U2932细胞增殖及凋亡能力未发生明显改变(P>0.05)。KEGG和GO富集分析结果显示,YY-20394对SU-DHL-4细胞的抗肿瘤作用涉及多条信号通路,其中PI3K-AKT、MAPK、JAK-STAT等信号通路的活性下调,且可能通过影响醇类物质合成等细胞生物学功能发挥作用;而U2932细胞中未富集到具有显著差异的信号通路。GSEA富集分析显示PI3K-AKT信号通路在SU-DHL-4细胞中的活化水平显著低于U2932细胞。结论PI3K抑制剂YY-20394通过影响PI3K-AKT等肿瘤相关信号通路,对GCB亚型的SU-DHL-4细胞产生抗肿瘤效应,而对ABC亚型的U2932细胞不敏感。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
Objective:To investigate the effects of stilbene glycoside(TSG)on okadaic acid-induced apoptosis in human neuroblastoma cells(SH-SY5Y)via the PI3K/AKT pathway.Methods:The optimal concentration of OA was screened by CC...Objective:To investigate the effects of stilbene glycoside(TSG)on okadaic acid-induced apoptosis in human neuroblastoma cells(SH-SY5Y)via the PI3K/AKT pathway.Methods:The optimal concentration of OA was screened by CCK-8 assay,and SH-SY5Y cells were divided into control group,model group,TSG group,LY294002 group and LY294002+TSG group.The proliferation and apoptosis in each group were detected by CCK-8 and TUNEL assays;Western blotting method and real-time fluorescence quantitative polymerase chain reaction was used to detect the expression of PI3K,P-PI3K(Y607),AKT,P-AKT(Ser473),Bcl-2 and Bax proteins.The relative protein expression was represented by P-PI3K(Y607)/PI3K,P-AKT(Ser473)/AKT and Bcl-2/Bax gray ratio.Results:CCK-8 screened the optimal concentration of OA as 40 nmol/L.Compared with the control group,the model group increased relative cell viability,decreased apoptosis rate,the pathway and apoptotic proteins expression levels of P-PI3K(Y607)/PI3K,P-AKT(Ser473)/AKT and Bcl-2/Bax were decreased,and the mRNA expression levels of PI3K,AKT and Bcl-2 were decreased.Bax mRNA expression level increased(P<0.05);Compared with model group,TSG group increased relative cell viability,decreased apoptosis rate,increased protein expression levels of P-PI3K(Y607)/PI3K,P-AKT(Ser473)/AKT,Bcl-2/Bax,and increased mRNA expression levels of PI3K,AKT,and Bcl-2.Bax mRNA expression decreased(P<0.05),LY294002 group decreased relative cell viability,increased apoptosis rate,P-PI3K(Y607)/PI3K protein expression levels were significantly decreased(P<0.05),P-AKT(Ser473)/AKT and Bcl-2/Bax protein expression levels were significantly decreased,but there was no statistical significance,PI3K,AKT and Bcl-2 mRNA expression levels were decreased,and Bax mRNA expression levels were increased(all P<0.05);Compared with LY294002 group,LY294002+TSG group increased relative cell viability,decreased apoptosis rate,and the protein expression levels of P-PI3K(Y607)/PI3K,P-AKT(Ser473)/AKT and Bcl-2/Bax were increased.The mRNA expression levels of PI3K,AKT,Bcl-2 were increased,Bax was decreased(all P<0.05).Conclusion:Stilbene glycoside may alleviate okadaic acid-induced apoptosis in SH-SY5Y cells by interfering with the PI3K/AKT signaling pathway,which in turn regulates the expression of apoptotic factors such as Bcl-2 and Bax.展开更多
文摘目的探讨PI3K抑制剂林普利塞(Linperlisib,YY-20394)对弥漫大B细胞淋巴瘤(diffuse large B-cell lymphoma,DLBCL)的抗肿瘤效应及其作用机制。方法采用CCK-8法检测不同浓度YY-20394对SU-DHL-4细胞(GCB亚型)和U2932细胞(ABC亚型)增殖能力的影响,并计算出24 h时药物的IC_(25)、IC_(50)、IC_(75)。采用流式细胞术检测IC_(25)、IC_(50)和IC_(75)浓度YY-20394对SU-DHL-4细胞和U2932细胞凋亡的影响。采用高通量RNA测序技术(RNA-Seq)检测药物作用前后各组细胞基因表达的变化,对差异表达基因进行KEGG信号通路分析和GO富集分析,并且对各组细胞基因表达数据进行GSEA富集分析。结果在YY-20394作用下,SU-DHL-4细胞增殖抑制率和细胞凋亡率增加(P<0.05),但U2932细胞增殖及凋亡能力未发生明显改变(P>0.05)。KEGG和GO富集分析结果显示,YY-20394对SU-DHL-4细胞的抗肿瘤作用涉及多条信号通路,其中PI3K-AKT、MAPK、JAK-STAT等信号通路的活性下调,且可能通过影响醇类物质合成等细胞生物学功能发挥作用;而U2932细胞中未富集到具有显著差异的信号通路。GSEA富集分析显示PI3K-AKT信号通路在SU-DHL-4细胞中的活化水平显著低于U2932细胞。结论PI3K抑制剂YY-20394通过影响PI3K-AKT等肿瘤相关信号通路,对GCB亚型的SU-DHL-4细胞产生抗肿瘤效应,而对ABC亚型的U2932细胞不敏感。
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.
基金National Natural Science Foundation of China(No.81860709)Baise City Science and Technology Plan Project(No.Encyclopedia 20224139,Encyclopedia 20211807)2023 Youjiang Ethnic Medical College Graduate Innovation Program Project(No.YXCXJH2023013)。
文摘Objective:To investigate the effects of stilbene glycoside(TSG)on okadaic acid-induced apoptosis in human neuroblastoma cells(SH-SY5Y)via the PI3K/AKT pathway.Methods:The optimal concentration of OA was screened by CCK-8 assay,and SH-SY5Y cells were divided into control group,model group,TSG group,LY294002 group and LY294002+TSG group.The proliferation and apoptosis in each group were detected by CCK-8 and TUNEL assays;Western blotting method and real-time fluorescence quantitative polymerase chain reaction was used to detect the expression of PI3K,P-PI3K(Y607),AKT,P-AKT(Ser473),Bcl-2 and Bax proteins.The relative protein expression was represented by P-PI3K(Y607)/PI3K,P-AKT(Ser473)/AKT and Bcl-2/Bax gray ratio.Results:CCK-8 screened the optimal concentration of OA as 40 nmol/L.Compared with the control group,the model group increased relative cell viability,decreased apoptosis rate,the pathway and apoptotic proteins expression levels of P-PI3K(Y607)/PI3K,P-AKT(Ser473)/AKT and Bcl-2/Bax were decreased,and the mRNA expression levels of PI3K,AKT and Bcl-2 were decreased.Bax mRNA expression level increased(P<0.05);Compared with model group,TSG group increased relative cell viability,decreased apoptosis rate,increased protein expression levels of P-PI3K(Y607)/PI3K,P-AKT(Ser473)/AKT,Bcl-2/Bax,and increased mRNA expression levels of PI3K,AKT,and Bcl-2.Bax mRNA expression decreased(P<0.05),LY294002 group decreased relative cell viability,increased apoptosis rate,P-PI3K(Y607)/PI3K protein expression levels were significantly decreased(P<0.05),P-AKT(Ser473)/AKT and Bcl-2/Bax protein expression levels were significantly decreased,but there was no statistical significance,PI3K,AKT and Bcl-2 mRNA expression levels were decreased,and Bax mRNA expression levels were increased(all P<0.05);Compared with LY294002 group,LY294002+TSG group increased relative cell viability,decreased apoptosis rate,and the protein expression levels of P-PI3K(Y607)/PI3K,P-AKT(Ser473)/AKT and Bcl-2/Bax were increased.The mRNA expression levels of PI3K,AKT,Bcl-2 were increased,Bax was decreased(all P<0.05).Conclusion:Stilbene glycoside may alleviate okadaic acid-induced apoptosis in SH-SY5Y cells by interfering with the PI3K/AKT signaling pathway,which in turn regulates the expression of apoptotic factors such as Bcl-2 and Bax.
