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时间:2019-05-24
《胆汁酸对肝星状细胞增殖及细胞动能的调控作用_英文_》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、临床儿科杂志第28卷第4期2010年4月JClinPediatrVol.28No.4Apr.2010·301··OriginalArticleinEnglish·Bileacidsenhanceproliferationandmotilityofhepaticstellatecellthroughregulationofp38/JNKsignaling1212ZHANGYi-ningTadashiIkegamiDUHong-weiYasushiMatsuzaki1.FirstHospitalofJilinUniversity(Changchun130021,Jilin
2、,China);2.DivisionofGastroenterologyandHepatology,TokyoMedicalUniversityKasumigauraHospital(Tsukuba300-0395,Japan)Abstract:ObjectiveBileacids(BA)facilitatecholesterolhepaticfibrosis.Althoughhepaticstellatecell(HSC)isoneofthemostimportantcellsduringliverfibrogenesis,theeffectofbileacidso
3、nHSCisrarelymentioned.Therefore,bileacidsfacilitateliverfibrosisthroughregulatingactivatedHSCshouldbetested.MethodsTheamountofBrdUincor-porationwasdeterminedtoassesstheproliferationofHSCtreatedbybileacid.Wound-healingassaywasusedtodeterminethecellularmotility.Meanwhile,thephosphorylatio
4、nofp38andJNKinHSCwasdetectedbyWesternblotting.Results50μmol/LGCDCAenhancedtheHSCproliferationsignificantly(152.0%±7.1%,P<0.05);50μmol/LGCDCAalsoinducedphosphorylationofp38andJNK(450.0%±12.2%ofcontrolinp38(P<0.01),210.0%±15.2%ofcontrolinJNK(P<0.05)).50μmol/LGCDCAaidedwoundhealing(remaini
5、ngwoundareais75.4%±5.8%oforiginalarea,P<0.05),butthiseffectwasinhibitedbyJNK(SP600125)orp38(SB294002)inhibitor,respectively.ConclusionsBileacidsenhanceHSCproliferationandfacilitatecellularmotilitythroughinducingphosphorylationofp38andJNK,in-dicatingbileacidaidliverfibrosisthroughregulat
6、ionofp38andJNKsignaling.(JClinPediatr,2010,28(4):301-306)Keywords:liverfibrosis;bileacid;hepaticstellatecell121胆汁酸对肝星状细胞增殖及细胞动能的调控作用张一宁,池上正,杜红伟,松崎靖2司(1.吉林大学第一医院,长春130021,吉林,中国;2.东京医科大学茨城医疗中心,筑波300-0395,日本)摘要:目的探讨胆汁酸如何通过调控肝星状细胞促进肝纤维化发生。方法采用BrdU掺入法测定胆汁酸和TGFβ-1对GFSC-2G细胞增殖的影响;利用Wound-heali
7、ng检测法判定细胞的移动能力;同时利用Westernblotting法检测与胆汁酸共同孵育的GFSC-2G细胞的p38和JNK的表达。结果与50μmol/L甘氨鹅脱氧胆酸(GCDCA)共同孵育后,CFSC-2G细胞增殖明显增加,为对照组的152.0%±7.1%(P<0.05)。50μmol/LGCDCA诱导p38及JNK磷酸化的作用[在p38为对照组的450.0%±12.2%(P<0.01),在JNK为对照组的210.0%±15.2%(P<0.05)]。50μmol/LGCDCA促进培养细胞的伤痕愈合(剩余面积为原来的75.4%±5.8%,P<0.0
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