人髌下脂肪垫来源脂肪间充质干细胞的分离、培养及鉴定

被引:10
作者
刘玉平 [1 ]
刘涛 [1 ]
王明明 [1 ]
李明 [1 ]
俞光荣 [2 ]
机构
[1] 滕州市中心人民医院创伤骨科
[2] 同济大学附属同济医院足踝外科
关键词
干细胞; 间质干细胞; 细胞培养技术; 抗原,表面; 组织工程; 脂肪干细胞; 脂肪间充质干细胞; 细胞培养; 种子细胞; 表面抗原;
D O I
暂无
中图分类号
R329.2 [人体细胞学];
学科分类号
100107 [人体解剖与组织胚胎学(人体解剖学、组织与胚胎学)];
摘要
背景:髌下脂肪垫在膝关节手术中经常要部分切除,其可以作为脂肪间充质干细胞的重要来源。目的:探讨自髌下脂肪垫中分离、培养脂肪间充质干细胞的策略及细胞分子表面标记情况。方法:髌下脂肪垫组织取自膝关节镜手术的患者,以Ⅰ型胶原酶消化消化脂肪组织获取干细胞,用10%低糖DMEM培养基培养,利用MTT法测定不同代细胞增殖情况并绘制生长曲线。检测第5代细胞表面CD29及CD44的表达。结果与结论:培养24 h后可见原代细胞贴壁,1周后细胞呈纺锤型并且增殖速度加快,传代后的细胞贴壁及增殖细胞速度加快。生长曲线示第2及第5代的细胞增殖能力明显较第8代能力强。所取细胞能够分化为骨细胞和脂肪细胞。流式细胞仪检测结果显示第5代脂肪间充质干细胞重96.8%表达CD29,97.6%表达CD44。提示自髌下脂肪垫分离及提取脂肪干细胞简单易行,所得细胞的纯度及增殖能力均符合组织工程种子细胞的基本条件。
引用
收藏
页码:6566 / 6571
页数:6
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