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时间:2020-04-02
《大黄素诱导裸鼠体内白血病K562细胞凋亡过程中P13KAKT.pdf》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、肿瘤2011年7月第31卷第7期TumorVo1.31,July2011www.tumorsci.org573DOI:10.3781/j.issn.1000—7431.2011.07.001Copyright~2011byTUMOR基础研究·BasicResearch大黄素诱导裸鼠体内白血病K562细胞凋亡过程中PI3K/AKT通路相关分子表达的变化王春光,刘北忠,曾丽,刘永立,刘俊霞,刘谢添,王维1.重庆医科大学附属永川医院肿瘤科永川402160;2.重庆医科大学医学检验系临床检验诊断学教育部重点实验室重庆400016[摘
2、要】目的:观察大黄素作用后裸鼠体内白血病K562细胞PI3K/AKT信号通路的分子变化,以探讨大黄素是否依赖PI3K/AKT信号通路参与K562细胞凋亡发生。方法:建立裸鼠K562细胞皮下移植瘤模型,腹腔连续给药12d后,处死裸鼠,称取瘤体质量,计算抑瘤率。采用HE染色和透射电子显微镜观察肿瘤细胞的凋亡情况。应用RT—PCR法检测肿瘤组织中PI3K、AKT和FoxO3a的mRNA表达水平。蛋白质印迹法检测肿瘤组织中PI3K、AKT和FoxO3a蛋白的表达水平。结果:低、中、高剂量组大黄素作用后肿瘤相对体积(V/)分别为8.9
3、0±0.24、5.62±0.17和2.06±0.31,与0.9%氯化钠溶液对照组(V/为11.83±0.47)相比,大黄素处理组的肿瘤体积明显缩小,差异具有统计学意义(P4、血病K562细胞裸鼠移植瘤的生长,其机制可能与其抑制PI3I,√AI信号转导通路有关。[关键词】白血病,实验性;大黄素;异种移植模型抗肿瘤试验;细胞凋亡;基因表达;小鼠,近交BALBC;K562细胞;PI3I,√AI(T信号转导通路【中图分类号】R733.7【文献标志码】A[文章编号]1000—7431(2011)07—0573—07ChangesofmolecularsinvolvedinPI3K/AKTpathwayinemodin-inducedapoptosisofhumanleukemiaK562cellsinnu5、demiceWANGChun—guang。,LIUBei—zhong,ZENGLi。,LIUYong—li。,LIUJun—xia。,LIUXie-tian。。WANGWei。1.DepartmentofOncology,YongchuanHospital,ChongqingMedicalUniversity,Yongchuan402160。China;2.KeyLaboratoryofChJnicalLaboratoryDiagnosticsofMinistryofEducation,DepartmentofLaborat6、oryMedicine,ChongqingMedicalUniversity,Chongqing400016,China[ABSTRACT]Objective:Toobserveemodin-inducedmolecularchangesinPI3K/AKTsignalingpathwayinhumanIeukemiaK562ceIIstransPIantedirltoBALB/cnudemice,andtoexPIorewhetheremodininducestheapoptosisofK562cellsthroughPI7、3K/AKTsignalingpathway.Methods:ThesubcutaneouslytransPIantedtumormodelOfhumanK562ceIlsinnudemicewasestablished.AftercontinuousIYintraperitonealiniectionwithdifferentdosesofemodinfor12d。themiceweresacrificed.ThenthetumorweightandvoIumeweremeasured.andthetumorinhibit8、ionratewascaIcuIated.Emodi13一inducedapoptoticm0rphOl0gicalchangesofK562cellsweredetectedbyHEstainandscanningelectronmicroscoPY.RT—PCRandWesternbI
4、血病K562细胞裸鼠移植瘤的生长,其机制可能与其抑制PI3I,√AI信号转导通路有关。[关键词】白血病,实验性;大黄素;异种移植模型抗肿瘤试验;细胞凋亡;基因表达;小鼠,近交BALBC;K562细胞;PI3I,√AI(T信号转导通路【中图分类号】R733.7【文献标志码】A[文章编号]1000—7431(2011)07—0573—07ChangesofmolecularsinvolvedinPI3K/AKTpathwayinemodin-inducedapoptosisofhumanleukemiaK562cellsinnu
5、demiceWANGChun—guang。,LIUBei—zhong,ZENGLi。,LIUYong—li。,LIUJun—xia。,LIUXie-tian。。WANGWei。1.DepartmentofOncology,YongchuanHospital,ChongqingMedicalUniversity,Yongchuan402160。China;2.KeyLaboratoryofChJnicalLaboratoryDiagnosticsofMinistryofEducation,DepartmentofLaborat
6、oryMedicine,ChongqingMedicalUniversity,Chongqing400016,China[ABSTRACT]Objective:Toobserveemodin-inducedmolecularchangesinPI3K/AKTsignalingpathwayinhumanIeukemiaK562ceIIstransPIantedirltoBALB/cnudemice,andtoexPIorewhetheremodininducestheapoptosisofK562cellsthroughPI
7、3K/AKTsignalingpathway.Methods:ThesubcutaneouslytransPIantedtumormodelOfhumanK562ceIlsinnudemicewasestablished.AftercontinuousIYintraperitonealiniectionwithdifferentdosesofemodinfor12d。themiceweresacrificed.ThenthetumorweightandvoIumeweremeasured.andthetumorinhibit
8、ionratewascaIcuIated.Emodi13一inducedapoptoticm0rphOl0gicalchangesofK562cellsweredetectedbyHEstainandscanningelectronmicroscoPY.RT—PCRandWesternbI
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