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ID:35159391
大小:1.85 MB
页数:49页
时间:2019-03-20
《脂肪来源干细胞(adscs)对光老化hacat细胞的实验研究》由会员上传分享,免费在线阅读,更多相关内容在学术论文-天天文库。
1、分类号:R622+密级:不保密UDC:610学校代码:11065硕士学位论文脂肪来源干细胞(ADSCs)对光老化HaCaT细胞的实验研究张秀云指导教师张维娜副教授学科专业名称整形外科论文答辩日期2015年05月26日脂肪来源干细胞(ADSCs)对光老化HaCaT细胞的实验研究中文摘要目的:通过体外共同培养ADSCs(Adiposestemcells,ADSCs)与HaCaT细胞,制造光老化模型,观察HaCaT细胞形态学变化,检测细胞培养液中抗氧化酶的活性,探讨脂肪来源干细胞(ADSCs)对光老化HaCaT细胞的抗老化作用。方法:设计实验组为ADSCs与HaCaT共培养组,
2、培养48h后,给予紫外线UVA30mJ/cm照射24小时后,继续培养24h,对照组为单纯培养HaCaT,紫外线照射同实验组。观察HaCaT细胞形态学变化,检测两组细胞培养液中乳酸脱氢酶(LDH)、丙二醛(MDA)、超氧化物歧化酶(SOD)活力。结果:对照组HaCaT细胞细胞数较少,细胞贴壁性较低,细胞间隙增大,细胞变圆或不规则,细胞体积变小。实验组较对照组细胞形态较好,圆形、不规则形、悬浮细胞较少。实验组SOD、LDH活力明显高于对照组(P<0.05),实验组MDA含量明显低于对照组。结论:研究结果表明脂肪来源干细胞(ADSCs)对光老化有治疗作用,能够减轻UVA对HaC
3、aT细胞的损伤,从而为抗光老化提供新的手段。硕士研究生:张秀云(整形外科)指导教师:张维娜副教授【关键词】ADSCs;光老化;HaCaT细胞;抗氧化酶TheeffectsofAdiposestemcells(ADSCs)inlightagingHaCaTcellsAbstractObjective:throughcultivatingADSCs(Adiposestemcells,ADSCs)withHaCaTcellsandbuildingthemodeloflightaging,radiationUVA,wedetectedtheactivityofantioxidan
4、tenzymesincellcultureandcellactivity,andobservedtheMorphologyofHaCaTcells,thusweexploredtheeffectsoftheAdiposestemcells(ADSCs)onlightagingHaCaTcells.Method:intheexperimentalgroup,ADSCswerecultivatedwithHaCaTandreceivedUVA30mJ/cmexposureofthesun'sultravioletrays24hoursafter48hours.wecontin
5、uedcultivatingthecellsfor24hours.ThecontrolgroupwasinpureHaCaTtraining,reiceivedthesamedoseofultravioletirradiationwithexperimentalgroup.After,wedetectedtheLDH,MDA,SODvigorincellculturesofthetwogroups.Resuts:thenumberofHaCaTcellsinthecontrolgroupwaslessthantheexperimentalgroup.Theadherent
6、sexwaslowerandintercellularspacewereincreased。HaCaTcellsbecameroundorirregular.ThemorphologyofHaCaTcellswithroundandirregularshapeinexperimentalgroupwasbetterthanthecontrolgroup,andthesuspensioncellwaslessthanthethecontrolgroup.theexperimentalgroupofLDHandMDA,SODactivityissignificantlyhig
7、herthancontrolgroup(P<0.05).Conclusion:theresultsshowedthatfatADSCshastreatmenteffectsinlightaging,andreducetheUVAdamageonHaCaTcell,whichprovidesnewmeansforlightagingresistance.keywords:ADSCs;Lightaging;HaCaTcells;immunohistochemical;enzymeofanti-oxidation目录引言······
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