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时间:2018-09-13
《兔髓核细胞体外培养和重组人转化生长因子β1对其代谢影响的研究》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、万方数据中尉脊柱脊髓杂志2006年第16卷第4期ChineseJournalqfSpineand曲ina/c。rd.2006.P01.16,舳4兔髓核细胞体外培养和重组人转化生长因子一131对其代谢影响的研究张传志1,周跃1,李长青1,周琳2,郭国宁。,曹国勇1,李华壮1(1第二墨区大学附属新桥医院骨科400038重庆市;2成都至区总医篪医学试验科610000阳川省战都市【摘要】目的:探讨体外单层和讧体培养兔髓核细胞时的变化及重组人转化牛K吲子一131(rhTGF—Bl,10ng]m1)对其代谢的影响。方法:体外士音养兔髓桩细胞,分为3组。A组,单层培养组;B组,Ⅱ型胶原支架立体培
2、养组;C组,Ⅱ型胶原支架立体培养+rhluF_B1(10ng/m1)组。利用倒置显微镜、扫描电镜、¨PCR、,H—proline掺人法观察髓核绌胞形态学、基因表达水甲和总胶原合成的变化。结果:B、c组兔髓核细胞由A组的多角彤转为类圆形:与A组相比.B组Ⅱ型胶原、集聚蛋白多糖基罔表达水平升高(P<005),总胶原合成升高(P<00I)。与B组相比,C组Ⅱ型胶原、集聚蛋白多糖、核心蛋白多糖基因表达水平增高(心O()】、P<001、P<005),总胶娘合成川高(P<0叭),结论:兔髓核细胞由单层培养转到lI型胶原支架上培养时其丛必表达和总胶原合成增强。rhTGF—B1(10n∥nd)町增
3、强立体培养的兔髓核细胞基罔表达和总胶原台成。【关键词】组织工稃;细胞培养;髓核细胞;重组人转化生长因子B1;兔中圈分类号:0813.1,R6815文献标识码:A文章编号:1004—406X(2006)一04028004CulturinginvitroofnucleuspulposuscellsandtheanabolieeffectinducedbyrhTGF—B1inrabbiffZHANGChuanzhi,ZHOUYue.LIChangqing,etal//ChineseJournalofSpineandSpinalCord,2006,16f4):28¨283【Abstract
4、】Objective:Toexplorethechangesofrabbitnuclenspulposus(NP)cellsculturedinvltmandtheanabnlieeffectintroducedbyrhTGF—B1(mthe(:ellsMethod:RabhitNPcellsgroupedinto3groupswereculturedinvitroi;aroneweekGroupA,monolayerculture;groupB,threedimensionaleu]tureinatype1Icnnagenseaftbht;grnupC,threedimensio
5、nalcultureinthetypelIcollagenscaffoldadding10ng&drhTGF—belalMorphologicalchangeswereobservedbyinvertedmicroscopeandSEM.Geneexpressionlevelswerearia-lyzedbyhaltquantativeRT—PCRTotalcollagensynthesiswasassayedby311一prolineincorporationResult:RabbitNPcellspossessaroundmorphologywhenculturedingrou
6、pRandgroupCwhilethecellspossessapolygonalmorphologywhenculturedingroupAGeneexpressionlevelsofvpeⅡcollagen.AggrecanandtotalcollagensynthesisofgroupBincreasedby1.21.112,lllfoldsrespectively.ascomparedwithgroupA(P<005,P7、nandtotalcollagensynttmsisofgroupCincreasedby129,132,116,1.26foldsrespectively(P<001,P<001,P<0.05.P<001respectively)ascomparedwithgroupBConclusion:GeneexpressionlevelsandtotalcollagensynthesisincreascwhenrabbitNt’cellsareculturedinthety
7、nandtotalcollagensynttmsisofgroupCincreasedby129,132,116,1.26foldsrespectively(P<001,P<001,P<0.05.P<001respectively)ascomparedwithgroupBConclusion:GeneexpressionlevelsandtotalcollagensynthesisincreascwhenrabbitNt’cellsareculturedinthety
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