Objective:To study the effect of Yigan capsule on the expression of high mobility group protein B1(HMGB1),nuclear factor-B(NF-κB)and receptor for advanced glycation end products(RAGE)in anti-tuberculosis drug-induced...Objective:To study the effect of Yigan capsule on the expression of high mobility group protein B1(HMGB1),nuclear factor-B(NF-κB)and receptor for advanced glycation end products(RAGE)in anti-tuberculosis drug-induced liver injury(ATB-DILI),and to explore its protective effect and mechanism on ATB-DILI,so as to provide experimental basis for the clinical application of Yigan capsule.Methods:Twenty-four rats were divided into two groups.Except for the blank group(n=6),the other 18 rats were given isoniazid(INH)+rifampicin(RFP)(50 mg/kg.d)for 4 weeks.Then 18 rats were randomly divided into three groups(model group,low dose group of Yigan capsule and high dose group of Yigan capsule)according to 6 rats in each group.The blank group and the model group were given 0.9%sodium chloride solution by intragastric administration.The low dose group of Yigan capsule was 0.468 g/kg,and the high dose group of Yigan capsule was 1.872 g/kg[1].After 4 weeks,the pathological changes of liver were observed by HE staining.The contents of ALT,AST,ALP,γ-GT and TBIL were detected.The expression of HMGB1,NF-κBp65 and RAGE protein was detected by IHC.The expression levels of HMGB1,NF-κBp65,RAGE,TNF-αand IL-1βwere detected by WB.Result:HE staining showed that the structure of the liver in the model group was disordered,the liver cells showed swelling and fusion,the number of inflammatory cells increased and accompanied by punctate necrosis,while the above pathological changes in each treatment group of Yigan capsule were significantly improved.The contents of ALT,AST,ALP,γ-GT and TBIL in the model group were higher than those in the blank group(P<0.05).The contents of ALT,AST,ALP,γ-GT and TBIL in each treatment group were significantly lower than those in the model group(P<0.05).Compared with the blank group,the expression levels of TNF-αand IL-1βin the model group were increased(P<0.05),and the expression levels of HMGB1,NF-κBp65 and RAGE were increased(P<0.05).Compared with the model group,the expression levels of TNF-αand IL-1βin each treatment group of Yigan capsule decreased(P<0.05),and the expression of HMGB1,NF-κBp65 and RAGE decreased(P<0.05).Conclusion:Yigan capsule may inhibit the secretion of inflammatory factors through HMGB1/RAGE/NF-κBp65 signaling pathway,thus protecting ATB-DILI.展开更多
目的探究高迁移率族蛋白1(High Mobility Group Box Protein1, HMGB1)通过(Toll-like Receptor4,TLR4)/核因子κB(Nuclear Factor Kappa-B, NF-κB)/NOD样受体热蛋白结构域相关蛋白3(NOD-like Receptor Thermal Protein Domain Associat...目的探究高迁移率族蛋白1(High Mobility Group Box Protein1, HMGB1)通过(Toll-like Receptor4,TLR4)/核因子κB(Nuclear Factor Kappa-B, NF-κB)/NOD样受体热蛋白结构域相关蛋白3(NOD-like Receptor Thermal Protein Domain Associated Protein 3, NLRP3)信号通路介导内皮细胞焦亡在系统性血管炎中的作用机制。方法 研究于2021年10月—2023年9月在齐齐哈尔医学院附属第三医院开展。取人脐静脉血管内皮细胞进行培养,随机分为对照组和实验组,实验组加入人重组HMGB1,对比对照组与实验组、实验组NLRP3及TLR4表达抑制前后,内皮细胞焦亡相关蛋白的表达水平。结果 系统性血管炎组与健康对照组比较,人脐静脉血管内皮细胞中HMGB1、含半胱氨酸的天冬氨酸蛋白水解酶-1(caspase-1)、白细胞介素-1β(interleukin-1β, IL-1β)、白细胞介素-18(interleukin-18, IL-18)水平升高,差异有统计学意义(P均<0.05)。细胞实验中实验组与对照组比较,caspase-1、IL-1β、IL-18水平升高,差异有统计学意义(P均<0.05)。过表达HMGB1并抑制NLRP3可使NLRP3(2.71±0.59 vs 1.24±0.58)、caspase-1(0.69±0.12 vs 0.40±0.03)、IL-1β[(1.75±0.31)pg/mL vs (1.16±0.12)pg/mL]、IL-18[(0.15±0.04)pg/mL vs (0.09±0.01)pg/mL]水平降低,差异有统计学意义(P均<0.05);过表达HMGB1并抑制TLR4可使TLR4(4.93±1.04 vs 1.96±0.84)、NF-κB(5.62±1.39 vs 2.15±1.04)、NLRP3(2.71±0.59 vs 1.24±0.58)、caspase-1(0.69±0.12 vs 0.40±0.03)、IL-1β[(1.75±0.31)pg/mL vs (1.16±0.12)pg/mL]、IL-18[(0.15±0.04)pg/mL vs (0.09±0.01)pg/mL]水平明显降低,差异有统计学意义(P均<0.05)。结论 HMGB1通过调节TLR4/NF-κB/NLRP3信号通路介导内皮细胞焦亡,进而改善系统性血管炎。展开更多
基金Scientific Research Project of Heilongjiang Provincial Education Department(No.12531608)。
文摘Objective:To study the effect of Yigan capsule on the expression of high mobility group protein B1(HMGB1),nuclear factor-B(NF-κB)and receptor for advanced glycation end products(RAGE)in anti-tuberculosis drug-induced liver injury(ATB-DILI),and to explore its protective effect and mechanism on ATB-DILI,so as to provide experimental basis for the clinical application of Yigan capsule.Methods:Twenty-four rats were divided into two groups.Except for the blank group(n=6),the other 18 rats were given isoniazid(INH)+rifampicin(RFP)(50 mg/kg.d)for 4 weeks.Then 18 rats were randomly divided into three groups(model group,low dose group of Yigan capsule and high dose group of Yigan capsule)according to 6 rats in each group.The blank group and the model group were given 0.9%sodium chloride solution by intragastric administration.The low dose group of Yigan capsule was 0.468 g/kg,and the high dose group of Yigan capsule was 1.872 g/kg[1].After 4 weeks,the pathological changes of liver were observed by HE staining.The contents of ALT,AST,ALP,γ-GT and TBIL were detected.The expression of HMGB1,NF-κBp65 and RAGE protein was detected by IHC.The expression levels of HMGB1,NF-κBp65,RAGE,TNF-αand IL-1βwere detected by WB.Result:HE staining showed that the structure of the liver in the model group was disordered,the liver cells showed swelling and fusion,the number of inflammatory cells increased and accompanied by punctate necrosis,while the above pathological changes in each treatment group of Yigan capsule were significantly improved.The contents of ALT,AST,ALP,γ-GT and TBIL in the model group were higher than those in the blank group(P<0.05).The contents of ALT,AST,ALP,γ-GT and TBIL in each treatment group were significantly lower than those in the model group(P<0.05).Compared with the blank group,the expression levels of TNF-αand IL-1βin the model group were increased(P<0.05),and the expression levels of HMGB1,NF-κBp65 and RAGE were increased(P<0.05).Compared with the model group,the expression levels of TNF-αand IL-1βin each treatment group of Yigan capsule decreased(P<0.05),and the expression of HMGB1,NF-κBp65 and RAGE decreased(P<0.05).Conclusion:Yigan capsule may inhibit the secretion of inflammatory factors through HMGB1/RAGE/NF-κBp65 signaling pathway,thus protecting ATB-DILI.
文摘目的探究高迁移率族蛋白1(High Mobility Group Box Protein1, HMGB1)通过(Toll-like Receptor4,TLR4)/核因子κB(Nuclear Factor Kappa-B, NF-κB)/NOD样受体热蛋白结构域相关蛋白3(NOD-like Receptor Thermal Protein Domain Associated Protein 3, NLRP3)信号通路介导内皮细胞焦亡在系统性血管炎中的作用机制。方法 研究于2021年10月—2023年9月在齐齐哈尔医学院附属第三医院开展。取人脐静脉血管内皮细胞进行培养,随机分为对照组和实验组,实验组加入人重组HMGB1,对比对照组与实验组、实验组NLRP3及TLR4表达抑制前后,内皮细胞焦亡相关蛋白的表达水平。结果 系统性血管炎组与健康对照组比较,人脐静脉血管内皮细胞中HMGB1、含半胱氨酸的天冬氨酸蛋白水解酶-1(caspase-1)、白细胞介素-1β(interleukin-1β, IL-1β)、白细胞介素-18(interleukin-18, IL-18)水平升高,差异有统计学意义(P均<0.05)。细胞实验中实验组与对照组比较,caspase-1、IL-1β、IL-18水平升高,差异有统计学意义(P均<0.05)。过表达HMGB1并抑制NLRP3可使NLRP3(2.71±0.59 vs 1.24±0.58)、caspase-1(0.69±0.12 vs 0.40±0.03)、IL-1β[(1.75±0.31)pg/mL vs (1.16±0.12)pg/mL]、IL-18[(0.15±0.04)pg/mL vs (0.09±0.01)pg/mL]水平降低,差异有统计学意义(P均<0.05);过表达HMGB1并抑制TLR4可使TLR4(4.93±1.04 vs 1.96±0.84)、NF-κB(5.62±1.39 vs 2.15±1.04)、NLRP3(2.71±0.59 vs 1.24±0.58)、caspase-1(0.69±0.12 vs 0.40±0.03)、IL-1β[(1.75±0.31)pg/mL vs (1.16±0.12)pg/mL]、IL-18[(0.15±0.04)pg/mL vs (0.09±0.01)pg/mL]水平明显降低,差异有统计学意义(P均<0.05)。结论 HMGB1通过调节TLR4/NF-κB/NLRP3信号通路介导内皮细胞焦亡,进而改善系统性血管炎。