BACKGROUND Hepatocellular carcinoma(HCC)is one of the most common digestive system cancers with high mortality rates worldwide.The main ingredients in Mu Ji Fang Granules(MJF)are alkaloids,flavonoids,and polysaccharid...BACKGROUND Hepatocellular carcinoma(HCC)is one of the most common digestive system cancers with high mortality rates worldwide.The main ingredients in Mu Ji Fang Granules(MJF)are alkaloids,flavonoids,and polysaccharides.MJF has been used in the clinical treatment of hepatitis,cirrhosis and HCC for more than 30 years.Few previous studies have focused on the mechanism of MJF on tumor immunology in the treatment of HCC.AIM To explore the mechanism of action of MJF on tumor immunology in the treatment of HCC.METHODS The absorbable ingredients of MJF were identified using Molecule Network related to High Performance Liquid Chromatography-Electron Spray Ionization-Time of Flight-Mass Spectrometry,and hub potential anti-HCC targets were screened using network pharmacology and pathway enrichment analysis.Forty male mice were randomly divided into the Blank,Model,and MJF groups(1.8,5.4,and 10.8 g/kg/d)following 7 d of oral administration.Average body weight gain,spleen and thymus indices were calculated,tumor tissues were stained with hematoxylin and eosin,and Interferon gamma(IFN-γ),Tumor necrosis factorα(TNF-α),Interleukin-2,aspartate aminotransferase,alanine aminotransferase,alpha-fetoprotein(AFP),Fas,and FasL were measured by Enzyme-linked Immunosorbent Assay.Relevant mRNA expression of Bax and Bcl2 was evaluated by Real Time Quantitative PCR(RTqPCR)and protein expression of Transforming growth factorβ1(TGF-β1)and Mothers against decapentaplegic homolog(SMAD)4 was assessed by Western blotting.The HepG2 cell line was treated with 10 mg/mL,20 mg/mL,30 mg/mL,40 mg/mL of MJF,and another 3 groups were treated with TGF-β1 inhibitor(LY364947)and different doses of MJF.Relevant mRNA expression of TNF-α,IFN-γ,Bax and Bcl2 was evaluated by RT-qPCR and protein expression of TGF-β1,SMAD2,p-SMAD2,SMAD4,and SMAD7 was assessed by Western blotting.RESULTS It was shown that MJF improved body weight gain and tumor inhibition rate in H22 tumorbearing mice,protected immune organs and liver function,reduced the HCC indicator AFP,affected immunity and apoptosis,and up-regulated the TGF-β1/SMAD signaling pathway,by increasing the relative expression of TGF-β1,SMAD2,p-SMAD2 and SMAD4 and decreasing SMAD7,reducing immune factors TNF-αand IFN-γ,decreasing apoptosis cytokines Fas,FasL and Bcl2/Bax,and inhibiting the effect of LY364947 in HepG2 cells.CONCLUSION MJF inhibits HCC by activating the TGF-β1/SMAD signaling pathway,and affecting immune and apoptotic cytokines,which may be due to MJF adjusting immune escape and apoptosis.展开更多
目的:探讨环氧合酶m RNA(cox-2 m RNA)表达在合募配穴针刺防治急性胃炎中的效应机制。方法:将60只SD大鼠(180-220 g,雄性)按计算机随机生成的随机数字表法分为空白对照组、抓取组、模型组、中脘穴组、后三里穴组、合募配穴组(中脘穴+后...目的:探讨环氧合酶m RNA(cox-2 m RNA)表达在合募配穴针刺防治急性胃炎中的效应机制。方法:将60只SD大鼠(180-220 g,雄性)按计算机随机生成的随机数字表法分为空白对照组、抓取组、模型组、中脘穴组、后三里穴组、合募配穴组(中脘穴+后三里穴组)6组,每组10只。采用烈性白酒灌胃法复制急性胃炎大鼠模型。针刺组大鼠依照分组要求取相应穴位,均采用捻转平补平泻法针刺(捻转幅度180°,频率60-80次/min),1次/d,每次20 min,造模前连续针刺6 d,造模后,连续针刺3 d。治疗结束后用实时荧光定量聚合酶链式反应(q RT-PCR)技术检测胃和下丘脑组织cox-2 m RNA的表达变化。结果:与空白对照组相比,抓取组胃组织与下丘脑组织中cox-2m RNA表达水平显著升高(P<0.05);与抓取组相比,模型组胃组织与下丘脑组织中cox-2 m RNA表达水平有极显著性升高(P<0.01);与模型组相比,3个针刺组胃组织与下丘脑组织中cox-2 m RNA的表达均有极显著性下调(P<0.01);3个针刺组组间比较,胃组织中cox-2 m RNA的表达无显著性差异(P>0.05),合募配穴组下丘脑组织cox-2m RNA的表达量最低,与中脘穴组相比有极显著性差异(P<0.01),与后三里穴组相比有显著性差异(P<0.05)。结论:针刺防治酒精性胃炎的机制可能与通过抑制胃、下丘脑组织cox-2 m RNA表达密切相关;在降低下丘脑cox-2m RNA表达水平方面,配穴(合募配穴)效果优于单穴(后三里穴或中脘穴)作用,具有一定特异性。展开更多
目的探讨接头相关复合体蛋白3亚基2(adaptor related protein complex 3 subunit mu 2,AP3M2)在胃癌中的表达情况及其临床意义。方法通过TCGA数据库、实时荧光定量PCR及免疫印迹实验检测AP3M2基因的mRNA及蛋白在胃癌组织中的表达情况。...目的探讨接头相关复合体蛋白3亚基2(adaptor related protein complex 3 subunit mu 2,AP3M2)在胃癌中的表达情况及其临床意义。方法通过TCGA数据库、实时荧光定量PCR及免疫印迹实验检测AP3M2基因的mRNA及蛋白在胃癌组织中的表达情况。通过检测KM Plotter网站探索AP3M2的表达与胃癌患者预后的关系。通过平板克隆形成实验检测AP3M2对胃癌细胞的作用。结果TCGA数据库数据及本研究收集的胃癌患者组织显示AP3M2相比于癌旁组织,其在胃癌组织中的mRNA表达水平升高,同时AP3M2的蛋白在胃癌组织中的表达也有上调的现象。同时本研究通过KM Plotter网站分析得到AP3M2的mRNA表达水平与胃癌患者的预后有关,高表达AP3M2的胃癌患者其预后较低表达AP3M2的胃癌患者差。通过在AGS细胞(人胃腺癌细胞)中过表达AP3M2并检测其平板克隆形成能力的变化,发现过表达AP3M2可以增强胃癌细胞的克隆形成能力。结论AP3M2在胃癌中高表达,高表达AP3M2与胃癌患者的不良预后有关,且能增强胃癌细胞的克隆形成能力。展开更多
PCV2 is considered the main pathogen of porcine circovirus diseases and porcine circovirus-associated diseases(PCVD/PCVAD). However, the exact mechanism underlying PCVD/PCVAD is currently unknown. Mouse models of PCV2...PCV2 is considered the main pathogen of porcine circovirus diseases and porcine circovirus-associated diseases(PCVD/PCVAD). However, the exact mechanism underlying PCVD/PCVAD is currently unknown. Mouse models of PCV2 are valuable experimental tools that can shed light on the pathogenesis of infection and will enable the evaluation of antiviral agents and vaccine candidates. In this review, we discuss the current state of knowledge of mouse models used in PCV2 research that has been performed to date, highlighting their strengths and limitations, as well as prospects for future PCV2 studies.展开更多
基金Supported by National Natural Science Foundation of China,No.81874342Natural Science Foundation of Liaoning Province,No.2020-MZLH-35.
文摘BACKGROUND Hepatocellular carcinoma(HCC)is one of the most common digestive system cancers with high mortality rates worldwide.The main ingredients in Mu Ji Fang Granules(MJF)are alkaloids,flavonoids,and polysaccharides.MJF has been used in the clinical treatment of hepatitis,cirrhosis and HCC for more than 30 years.Few previous studies have focused on the mechanism of MJF on tumor immunology in the treatment of HCC.AIM To explore the mechanism of action of MJF on tumor immunology in the treatment of HCC.METHODS The absorbable ingredients of MJF were identified using Molecule Network related to High Performance Liquid Chromatography-Electron Spray Ionization-Time of Flight-Mass Spectrometry,and hub potential anti-HCC targets were screened using network pharmacology and pathway enrichment analysis.Forty male mice were randomly divided into the Blank,Model,and MJF groups(1.8,5.4,and 10.8 g/kg/d)following 7 d of oral administration.Average body weight gain,spleen and thymus indices were calculated,tumor tissues were stained with hematoxylin and eosin,and Interferon gamma(IFN-γ),Tumor necrosis factorα(TNF-α),Interleukin-2,aspartate aminotransferase,alanine aminotransferase,alpha-fetoprotein(AFP),Fas,and FasL were measured by Enzyme-linked Immunosorbent Assay.Relevant mRNA expression of Bax and Bcl2 was evaluated by Real Time Quantitative PCR(RTqPCR)and protein expression of Transforming growth factorβ1(TGF-β1)and Mothers against decapentaplegic homolog(SMAD)4 was assessed by Western blotting.The HepG2 cell line was treated with 10 mg/mL,20 mg/mL,30 mg/mL,40 mg/mL of MJF,and another 3 groups were treated with TGF-β1 inhibitor(LY364947)and different doses of MJF.Relevant mRNA expression of TNF-α,IFN-γ,Bax and Bcl2 was evaluated by RT-qPCR and protein expression of TGF-β1,SMAD2,p-SMAD2,SMAD4,and SMAD7 was assessed by Western blotting.RESULTS It was shown that MJF improved body weight gain and tumor inhibition rate in H22 tumorbearing mice,protected immune organs and liver function,reduced the HCC indicator AFP,affected immunity and apoptosis,and up-regulated the TGF-β1/SMAD signaling pathway,by increasing the relative expression of TGF-β1,SMAD2,p-SMAD2 and SMAD4 and decreasing SMAD7,reducing immune factors TNF-αand IFN-γ,decreasing apoptosis cytokines Fas,FasL and Bcl2/Bax,and inhibiting the effect of LY364947 in HepG2 cells.CONCLUSION MJF inhibits HCC by activating the TGF-β1/SMAD signaling pathway,and affecting immune and apoptotic cytokines,which may be due to MJF adjusting immune escape and apoptosis.
文摘目的:探讨环氧合酶m RNA(cox-2 m RNA)表达在合募配穴针刺防治急性胃炎中的效应机制。方法:将60只SD大鼠(180-220 g,雄性)按计算机随机生成的随机数字表法分为空白对照组、抓取组、模型组、中脘穴组、后三里穴组、合募配穴组(中脘穴+后三里穴组)6组,每组10只。采用烈性白酒灌胃法复制急性胃炎大鼠模型。针刺组大鼠依照分组要求取相应穴位,均采用捻转平补平泻法针刺(捻转幅度180°,频率60-80次/min),1次/d,每次20 min,造模前连续针刺6 d,造模后,连续针刺3 d。治疗结束后用实时荧光定量聚合酶链式反应(q RT-PCR)技术检测胃和下丘脑组织cox-2 m RNA的表达变化。结果:与空白对照组相比,抓取组胃组织与下丘脑组织中cox-2m RNA表达水平显著升高(P<0.05);与抓取组相比,模型组胃组织与下丘脑组织中cox-2 m RNA表达水平有极显著性升高(P<0.01);与模型组相比,3个针刺组胃组织与下丘脑组织中cox-2 m RNA的表达均有极显著性下调(P<0.01);3个针刺组组间比较,胃组织中cox-2 m RNA的表达无显著性差异(P>0.05),合募配穴组下丘脑组织cox-2m RNA的表达量最低,与中脘穴组相比有极显著性差异(P<0.01),与后三里穴组相比有显著性差异(P<0.05)。结论:针刺防治酒精性胃炎的机制可能与通过抑制胃、下丘脑组织cox-2 m RNA表达密切相关;在降低下丘脑cox-2m RNA表达水平方面,配穴(合募配穴)效果优于单穴(后三里穴或中脘穴)作用,具有一定特异性。
文摘目的探讨接头相关复合体蛋白3亚基2(adaptor related protein complex 3 subunit mu 2,AP3M2)在胃癌中的表达情况及其临床意义。方法通过TCGA数据库、实时荧光定量PCR及免疫印迹实验检测AP3M2基因的mRNA及蛋白在胃癌组织中的表达情况。通过检测KM Plotter网站探索AP3M2的表达与胃癌患者预后的关系。通过平板克隆形成实验检测AP3M2对胃癌细胞的作用。结果TCGA数据库数据及本研究收集的胃癌患者组织显示AP3M2相比于癌旁组织,其在胃癌组织中的mRNA表达水平升高,同时AP3M2的蛋白在胃癌组织中的表达也有上调的现象。同时本研究通过KM Plotter网站分析得到AP3M2的mRNA表达水平与胃癌患者的预后有关,高表达AP3M2的胃癌患者其预后较低表达AP3M2的胃癌患者差。通过在AGS细胞(人胃腺癌细胞)中过表达AP3M2并检测其平板克隆形成能力的变化,发现过表达AP3M2可以增强胃癌细胞的克隆形成能力。结论AP3M2在胃癌中高表达,高表达AP3M2与胃癌患者的不良预后有关,且能增强胃癌细胞的克隆形成能力。
基金National Key Research and Development Program of China,Grant/Award Number:2017YFD0500103National Natural Science Foundation of China,Grant/Award Number:31772747,31272385+3 种基金Jilin Province Science and Technology Development Projects,Grant/Award Number:20150204077NYGraduate Innovation Fund of Jilin Universitythe Program for Changjiang Scholarsthe University Innovative Research Team,Grant/Award Number:IRT1248
文摘PCV2 is considered the main pathogen of porcine circovirus diseases and porcine circovirus-associated diseases(PCVD/PCVAD). However, the exact mechanism underlying PCVD/PCVAD is currently unknown. Mouse models of PCV2 are valuable experimental tools that can shed light on the pathogenesis of infection and will enable the evaluation of antiviral agents and vaccine candidates. In this review, we discuss the current state of knowledge of mouse models used in PCV2 research that has been performed to date, highlighting their strengths and limitations, as well as prospects for future PCV2 studies.
