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时间:2017-12-07
《不同代次兔髓核细胞中ⅱ型胶原和sox9的表达》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、190实用医学杂志2014年第30卷第2期·基础研究·不同代次兔髓核细胞中Ⅱ型胶原和SOX9的表达胡译文张伯寅文剑明王锐英摘要目的:通过培养不同代次兔髓核细胞,检测其Ⅱ型胶原和SOX9的含量变化,观察其细胞生长规律方法:取2~3个月龄新西兰大白兔8只,空气栓塞致死后取出胸、腰椎段髓核进行细胞传代培养。将原代细胞作为对照组(A组.n=8),传代后的2、3、4、5代细胞分别为B、C、D、E组,显微镜下观察不同代次细胞的形态变化:MTF法绘制细胞生长曲线:RT—PCR和免疫组化法检测不同代次细胞Ⅱ型胶原和SOX9的表达。结果:原代细胞(A组)生长缓慢,20~30d达80%融合可传
2、代;B组生长速度最快,7~10d可传代,C、D、E组生长速度依次减慢RT—PCR和免疫组化法检测可知A组和B组的Ⅱ型胶原及SOX9的表达明显高于C、D、E三组(P<0.05),A、B组之间差异无显著性(P>0.05),C、D、E组之间差异无显著性(P>O.05)。结论:不同代次兔髓核细胞的生长规律、Ⅱ型胶原及SOX9含量不同,第2代兔髓核细胞生物学特性与原代细胞相似.可作为种子细胞进行实验研究关键词髓核细胞;不同代次;Ⅱ型胶原;SOX9;兔ExpressionsofcollegenIIandSOX9indifferentgenerationsofrabbitnucleusp
3、ulposuscellsHUYi—wen,ZHANGBo—yin,WENgian—ming,WANGRui—ying.TheSecondDepartmentofOrthopedics,AfiliatedHospitalofGuilinMedicalCollege,Guilin541001,ChinaCorrespondingauthor:WANGRui—yingE—mail:rywang@glmc.edu.cn【Abstract】ObjectiveToobservethegrowthlawofrabbitnucleuspulposuscells(NPCs)throughde
4、tectingtheexpressionsofcollegenⅡandSOX9inthem.Methods8NewZealandwhiterabbits(2~3monthsold)weresacrificedbyairembolism.thenthethoracicandlumbarNPCswereseparatedandcuhuredinvitro.Theoriginalgenerationalcellswereincludedascontrolgroup(GroupA,n=8),andthesecond,third,forthandfifthgenerationalce
5、llswereincludedasGroupB,C,D,E,respectively.Cellmorphologywasobservedbymicroscopy,andthegrowthcurvewasdrawnbyMrI’.TheexpressionsofcollagenIIandSOX9wereevaluatedbyRT—PCRandimmunohistochemistry.ResllltSCellsinGroupAgrewslowlyandtook20~30daystoreach80%confluence.andthoseinGroupBgrewthefastestt
6、operformcellpassageby7—10days;thegrowthratesinGroupC,DandEsloweddowninturn.TheexpressionsofcollagenlIandSOX9inGroupAandBwereobviouslyhigherthanthoseinGroupC,DandE(P<0.05);andwerenotsignificantlydifferentbetweenGroupAandB(P>O.05)andamongGroupC,D,E(P>0.05).ConclusionDifferentgenerationalcell
7、spresentedvariedexpressionsofcollagen1andSOX9andgrowthlaw.Thesecondgenerationalcellsweresuitabletobeusedasseedcells.【Keywords】Nucleuspulposuscells;Differentgeneration;CollegenⅡ;SOX9;Rabbit.椎间盘退变的共同表现是髓核细胞(nucleus胞代次,为椎问盘退变的实验研究提供种子细胞。pulposuscells)的功能降低和数量减少,Ⅱ
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