脐带血来源间充质干细胞体外分离培养条件的优化

被引:20
作者
范秀波 [1 ]
刘天庆 [1 ]
郝永杰 [1 ]
刘洋 [1 ]
马学虎 [1 ]
崔占峰 [2 ]
机构
[1] 大连理工大学精细化工国家重点实验室,干细胞与组织工程研究室
[2] Department of Engineering Science,University of Oxford,Oxford OXPJ,UK
关键词
正交设计; 脐带血; 间充质干细胞; 培养条件优化; 细胞因子;
D O I
暂无
中图分类号
R329 [人体组织学];
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
脐带血间充质干细胞(umbilical cord blood mesenchymal stem cells,UCB-MSCs)不仅可以作为滋养层细胞支持造血干细胞在体外的大规模扩增,在造血移植过程中还能够降低并发症的发生率以及加速造血重建功能的恢复.但是,目前UCB-MSCs的原代分离培养成功率一般只有30%左右,为进一步提高该成功率,利用正交实验方法对UCB-MSCs体外培养的主要影响因素:细胞的接种密度、细胞因子的组合及用量、是否添加血清和滋养层细胞,进行逐层筛选,并对培养出的间充质干细胞进行了流式细胞分析和向成骨、软骨及脂肪方向的诱导分化检测,以期获得UCB-MSCs培养的最佳方法.实验结果表明,细胞的接种密度是UCB-MSCs培养最显著的影响因素(P<0.1),接种密度越大,MSCs越容易生长,能够培养出MSCs的几率就越大,其次为细胞因子,添加细胞因子能有效地刺激MSCs的生长.在高接种密度的基础上,添加细胞因子IL-3(15μg/L)和GM-CSF(5μg/L),可大大提高UCB-MSCs体外原代培养的成功率,从30%左右提高到90%以上.流式细胞检测结果显示,所分离培养的细胞表达间充质干细胞的抗原(CD13+、CD29+、CD44+、CD105+、CD166+),不表达造血细胞的抗原(CD34-、CD45-、HLA-DR-),并能够向成骨、软骨及脂肪方向分化,这与源于骨髓的间充质干细胞相一致.所建立的培养方法能够为UCB-MSCs的临床应用提供大量优质的种子细胞.
引用
收藏
页码:905 / 913
页数:9
相关论文
共 14 条
[1]
Neural Network Analysis of Ex-vivo Expansion of Hematopoietic Stem Cells[J] Xiubo Fan;Tianqing Liu;Xiangqin Li;Yang Liu;Xuehu Ma;Zhanfeng Cui Annals of Biomedical Engineering 2007,
[2]
The role of mesenchymal stem cells in maintenance and repair of bone[J] Robert Bielby;Elena Jones;Dennis McGonagle Injury 2007,
[3]
Estrogen stimulates the neuronal differentiation of human umbilical cord blood mesenchymal stem cells (CD34?)[J] Ji Hye Kang;Chae Kwan Lee;Ju Ran Kim;Seong Jin Yu;Jong Hee Jo;Byung-Rok Do;Hae Kwon Kim;Sung Goo Kang NeuroReport 2007,
[4]
Optimum conditions for culturing of human bone marrow and adipose tissue mesenchymal precursor cells[J] Yu. A. Romanov;A. N. Darevskaya;N. V. Kabaeva;O. A. Antonova Bulletin of Experimental Biology and Medicine 2006,
[5]
Mesenchymal stem cells: properties and role in clinical bone marrow transplantation[J] Katarina Le Blanc;Olle Ringdén Current Opinion in Immunology 2006,
[6]
Mesenchymal stem cells feeder layer from human umbilical cord blood for ex vivo expanded growth and proliferation of hematopoietic progenitor cells[J] Yun Kyung Jang;Dai Hyun Jung;Mee Hyun Jung;Dong Hyun Kim;Keon Hee Yoo;Ki Woong Sung;Hong Hoe Koo;Wonil Oh;Yoon Sun Yang;Sung-Eun Yang Annals of Hematology 2006,
[7]
Cytokine interactions in mesenchymal stem cells from cord blood[J] Chi-Hsien Liu;Shiaw-Min Hwang Cytokine 2005,
[8]
Effect of Subcultivation of Human Bone Marrow Mesenchymal Stem on their Capacities for Chondrogenesis; Supporting Hematopoiesis; and Telomea Length[J] Masaki Nakahara;Mutsumi Takagi;Takako Hattori;Shigeyuki Wakitani;Toshiomi Yoshida Cytotechnology 2005,
[9]
Mesenchymal stem cell-based cartilage tissue engineering: cells; scaffold and biology[J] L Song;D Baksh;RS Tuan Cytotherapy 2004,
[10]
Mesenchymal stem/progenitor cells developed in cultures from UC blood[J] S-E Yang;C-W Ha;MH Jung;H-J Jin;MK Lee;HS Song;SJ Choi;W Oh;Y-S Yang Cytotherapy 2004,