骨组织工程中脂肪间充质干细胞的作用

背景:目前常采用在骨缺损处充填自体骨、异体骨、人工合成骨替代品等方法进行骨缺损修复,但临床效果均不理想.研究表明脂肪间充质干细胞具有多种分化能力及很强的增殖潜力,可将其诱导分化成骨.目的:分析脂肪间充质干细胞在骨组织工程中的应用情况,以明确脂肪间充质干细胞是否可以作为骨组织工程中的种子细胞.方法:应用计算机检索Medline数据库(1999-01/2008-12),以adipose tissue-derived mesenchymal stem cells,adipose mesenchymal stem cells,adipose stem cell;osteogenic induction,osteogenic inducement,bone induction,osteoblastic induced;chondroblast induction,cartilage induction;bone tissue engineering,tissue engineering bone,tissue engineering of bone为检索词;应用计算机检索清华同方数据库(2003-01/2008-12),以脂肪间充质干细胞、成骨诱导、成软骨诱导、骨组织工程为检索词.结果与结论:共收集361篇关于脂肪间充质干细胞与骨组织工程相关的文献,中文246篇,英文115篇.排除发表时间较早、重复及类似研究,纳入29篇符合标准的文献.脂肪间充质干细胞体外扩增和自我更新能力很强,传代培养易于获得大量有分化能力的细胞,是真正意义上的具有多向分化潜能的干细胞,脂肪间充质干细胞在一定的培养条件下,可定向分化为成骨细胞、软骨细胞及骨细胞和肌肉细胞,配合合适的支架后可以应用到骨组织工程中,可以作为骨组织工程中的种子细胞.

Role of adipose-derived mesenchymal stem cells in bone tissue engineering

BACKGROUND: At present, bone defects usually repaired by autologous bone, allogenic bone, synthetic bone substitutes and other methods, which received poor clinical results. Preliminary studies have shown that adipose-derived mesenchymal stem cells (ADSCs) possess strong proliferation ability and differentiation potential, and can be induced differentiate into bone. OBJECTIVE: To analyze the application of ADSCs in bone tissue engineering, and to identify whether ADSCs can be used as seed cells in bone tiss...