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时间:2020-05-14
《干扰素-γ对黑色素瘤细胞血管生成拟态的影响及机制.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、天津医药2015年5月第43卷第5期453干扰素一对黑色素瘤细胞血管生成拟态的影响及机制韩健,孙保存,马跃美,赵秀兰摘要:目的研究干扰素-3,(IFN-',/)对人黑色素瘤细胞系MUM一2B迁移、侵袭和血管生成拟态(VM)形成能力的影响。方法将MUM一2B细胞体外培养后分为3组:对照组在含10%FBS的DMEM培养基中培养;实验1组另加入l0IFN-~/;实验2组另加入100/xg/LIFN—。利用划痕实验和侵袭实验分析IFN一对MUM一2B细胞迁移、侵袭能力的影响,三维培养观察IFN一对MUM一2B细胞VM形成能力的影响,Westernblo
2、t检测MUM一2B细胞中血管内皮生长因子(VEGF)表达的变化。结果划痕实验示实验组细胞迁移距离低于对照组,实验2组低于实验1组(P<0.05);侵袭实验示实验组细胞侵袭数量低于对照组,实验2组低于实验1组(p<0.05);三维培养示对照组细胞能够形成VM管道结构,实验组细胞不能形成明显的VM管道结构;Westernblot示实验组细胞中VEGF蛋白表达量低于对照组,实验2组低于实验1组(P<0,05)。结论IFN一可以在体外抑制MUM一2B细胞的迁移和侵袭,并通过抑制VEGF的表达而抑制其VM的形成。关键词:黑色素瘤;干扰素,重组;血管内皮生
3、长因子类;he瘤干细胞;血管生成拟态中图分类号:R739.5文献标志码:ADOI:10.11958~.issn.0253—9896.2015.05.002Efectsandmechanismofinterferon-gammaonvasculogenicmimicn,ofmelanomacellsHANJian,SUNBaocun,MAYuemei,ZHAOXiulanDepartmentofPathology,TianjinMedicalUniversity,Tianfin300070,China;2DepartmentofSurgery,T
4、ianjinMedicalUniversityCorrespondingAuthorE—maiL'sunbaocun@aliyun.cornAbstract:0bjectiveToinvestigatetheeffectsofinterferon—gamma(IFN一)onmigration,invasionandvasculogenicmimicry(VM)formationofhumanmelanomacelllineMUM一2B.MethodsMUM一2Bcellsweredividedintothreegroups,controlgro
5、up(10%FBSinDMEM),treatmentgroupI(10I-tg/LIFN一^y)andtreatmentgroup2(1ooLIFN一).DifferentconcentrationsofIFN=~twereaddedintheculturemediumofMUM一2Bcells.Wound—healingassayandmatrigelinvasionassaywereperformedtoexaminethemigrationandinvasionabilityofMUM一2Bcells.Three—Dculturewasu
6、sedtoobservetheVMformation.Theexpressionofvascularendothelialgrowthfactor(VEGF)ofMUM一2BcellswasdetectedbyWesternblotassay.ResultsTheresuhofwound—healingassayshowedthatthemigrationdistanceofcellswasdecreasedintreat—mentgroupscomparedwiththatofcontrolgroup.Themigrationdistance
7、ofcellswasdecreasedintreatmentgroup2com—paredwiththatoftreatmentgroupI(P<0.05).Theresultofmatrigelinvasionassayshowedthatthenumberofinvadedcellswasdecreasedintreatmentgroupscomparedwiththatofcontrolgroup,andwhichwassignificantlydecreasedintreatmentgroup2thanthatoftreatmentgr
8、oup1<0.o5).Theresultof3-Dcultureshowedthatcellsincontrolgroupcanformtypical
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