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时间:2018-08-30
《巨噬细胞集落刺激因子对小鼠骨髓内皮细胞增殖的促进作用.doc》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、巨噬细胞集落刺激因子对小鼠骨髓内皮细胞增殖的促进作用作者:王峰,王先酉,王绮如,周小莹,谭孟群【摘要】 本研究以内皮细胞培养液(EndoM)培养小鼠骨髓内皮细胞,探讨粒巨噬系集落刺激因子(rmGMCSF)对骨髓内皮细胞增殖的影响。用EndoM培养小鼠骨髓内皮细胞,通过WrightGiemsa染色计数内皮细胞集落、应用免疫荧光法观察内皮细胞表型;加入不同浓度的GMCSF,通过集落形成率、MTT法和流式细胞术检测内皮细胞生长周期,观察GMCSF对内皮细胞体外扩增的影响。结果表明:EndoM诱导的骨髓细胞可以生成内皮细胞集落,vWF检测呈阳性;集落形成率检
2、测及MTT法测定均证实GMCSF对内皮细胞的增殖具有明显的促进作用;生长周期检测结果显示,GMCSF处理组的细胞进入S期的比率为9.3%,而对照组为2.1%,说明GMCSF可以通过促使内皮细胞进入S期而加快细胞的分裂,促进细胞增殖;比较第1代和第4次传代后细胞的生长曲线,两者无明显差别,说明多次传代后的细胞仍保持传代早期的增殖潜能。结论:GMCSF对内皮细胞的增殖具有促进作用,经多次扩增传代后内皮细胞的增殖潜能无明显改变。【关键词】骨髓内皮细胞 GMCSF 细胞增殖 EffectsofGranulocyteMacrophageColonyStimulat
3、ingFactoronGrowthofMurineBoneMarrowEndothelialCellsAbstractThepurposeofthisstudywastoinvestigatetheeffectsofgranulocytemacrophagecolonystimulatingfactor(GMCSF)onthegrowthofmousebonemarrowendothelialcells.Endothelialcellculturemedium(EndoM)wasusedtoculturemurinebonemarrowendothelialce
4、lls.EndothelialcellcolonieswerecountedundermicroscopebyWrightGiemsastaining.TheeffectofdifferentconcentriationofGMCSFontheproliferationofbonemarrowendothelialcellswasobservedbytheformationofendothelialcellcolonies,MTTandflowcytometry.Theresultsindicatedthattheendothelialspecificmarker
5、vWFwasexpressedbythecolonycells,GMCSFpromotedtheproliferationofbonemarrowendothelialcellcoloniesandMTTconfirmedtheeffectofGMCSFonpromotingtheproliferationofbonemarrowendothelialcells.TheresultofdetectingcellcycleshowedthattherateofcellsenteringintoSphasewas9.3%inGMCSFaddedgroupandthe
6、rateofcellsenteringintoSphasewas2.1%incontrol.Therewasnosignificantdifferenceincellgrowthcurvebetweenthefirstpassageandfourthpassage.ItisconcludedthatGMCSFcanpromotetheproliferationofbonemarrowendothelialcells,theproliferationpotentialofbonemarrow6endothelialcellsbetweenthefirstandfour
7、thpassagenosignificantlychanges.Keywordsbonemarrowendothelialcells;GMCSF;proliferationJExpHematol2007;15(3):622-625目前,已有许多报道证明内皮细胞(endothelialcells,EC)、内皮祖细胞(endothelialprogenitorcells,EPC)可以用来治疗缺血性心脏病以及各种疾病引起的肢体缺血[1,2]也可以用于组织工程的血管构建[3],并取得了一定的成果。Kawamoto等[4]报道,EPC对缺血心脏病进行治疗具有
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