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时间:2020-05-07
《乙酰肝素酶siRNA对部分肝切除大鼠术后肝再生的抑制作用-论文.pdf》由会员上传分享,免费在线阅读,更多相关内容在应用文档-天天文库。
1、肝胆外科杂志2014年8月第22卷第4期JournalofHepatobiliarySurgery,Vol,22,No.4,Aug.2014311乙酰肝素酶siRNA对部分肝切除大鼠术后肝再生的抑制作用张玉霞,崔淑芳,张友磊【摘要】目的探讨乙酰肝素酶(HPSE)siRNA对部分肝切除大鼠术后肝再生的抑制作用。方法设计合成HPSEsir.NA,以vivo-jetPEI—Gal为载体转染70%肝切除大鼠,以逆转录一聚合酶链反应(RT—PCR)检测转染后HPSEmRNA表达,以Westernblot检
2、测AFP、ALB、CK-18和CK-19蛋白表达,以原位末端标记法(Tune1)检测肝细胞凋亡,以免疫组化检测肝组织增殖细胞核抗原(PCNA)表达,并测定肝再生率。结果与各对照组相比,siRNA干扰组HPSEmRNA表达明显降低,AFP、ALB、CK-18和CK-19蛋白表达明显降低,肝细胞凋亡指数明显增高,增殖指数明显降低,肝再生率明显降低,差别显著(P<0.05)。结论siRNA沉默HPSE表达后,部分肝切除大鼠术后肝再生受到明显抑制,提示HPSE对肝再生具有调控作用。【关键词】乙酰肝素酶;
3、siRNA;大鼠;肝切除;肝再生【中图分类号】R575【文献标识码】A【文章编号】1006-4761(2014)04-0311-03InhibitionofliverregenerationbyheparanasesiRNAaftermajo1"hepatectomyinrat(ZHANGYu—xia,CU1Shu-fang,ZHANGYou-leiJ.SecondMilitaryMedicalUniversity,Shanghai200438,China;2.DepartmentofGener
4、alSurgery,ChangzhengHospital,SecondMilitaryMedicalUnive~ity,Shanghai200003,China)【Abstract】ObjectiveToevaluatetheinhibitoryefectofheparanasesiRNAontheliverregenerationaftermajorhepateetomyinrat.MethodsThesiRNAagainstheparanasewasdesignedandsynthesize
5、d.anddeliveredintotheratsafter70%hepatectomybyvivo-jetPEI—Ga1.Thensemi-quantitativeRT-PCRwasperformedtoevaluatetheheparanasegeneexpression.Westernblotwasper-formedtoevaluatetheAFP,ALB,CK一18andCK-19proteinexpression,respectively.Terminaldexynucleotidy
6、ltransferase—mediateddUTPnickendlabeling(Tune1)wasperformedtodetecttheIivercellapoptosis.Immunohistoehemistrymethodwasusedtodetecttheproliferatingcellnuclearantigen(PCNA)inlivertissue.Theliverregenerationrateoftheratswascalculated.ResultsThehepara-na
7、segeneexpressioninliverwassignificantlyinhibitedintheratstreatedwithHPSEsiRNAaftermajorhepatectomycomparedwiththecontrols.TheexpressionofAFP、ALB、CK一18andCK一19proteinwasalsodepressedsignificantlyinsiRNAtreatedrats.Theapoptosisindexoflivercellswassigni
8、ficantlyincreasedandtheproliferationindexoflivercellswassignificantlydecreasedinsiRNAtreatedrats.TheliverregenerationrateoftheratstreatedwithsiRNAwassignificantlyreduced.(P。<0.01).ConclusionTheliverregenerationaftermajorhepatectomyinratwassignificant
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