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摘要:
Bone is a dynamic tissue that is constantly renewed by the coordinated action of two cell types, i.e., the bone-resorbing osteoclasts and the bone-forming osteoblasts. However, in some circumstances, bone regeneration exceeds bone self repair capacities. This is notably often the case after bone fractures, osteolytic bone tumor surgery, or osteonecrosis. In this regard,bone tissue engineering with autologous or allogenic mesenchymal stem cells(MSCs) is been widely developed. MSCs can be isolated from bone marrow or other tissues such as adipose tissue or umbilical cord, and can be implanted in bone defects with or without prior amplification and stimulation. However, the outcome of most pre-clinical studies remains relatively disappointing. A better understanding of the successive steps and molecular mechanisms involved in MSC-osteoblastic differentiation appears to be crucial to optimize MSC-bone therapy. In this review, we first present the important growth factors that stimulate osteoblastogenesis. Then we review the main transcription factors that modulate osteoblast differentiation, and the microRNAs(miRs)that inhibit their expression. Finally, we also discuss articles dealing with the use of these factors and miRs in the development of new bone MSC therapy strategies. We particularly focus on the studies using human MSCs, since significant differences exist between osteoblast differentiation mechanisms in humans and mice for instance.
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篇名 向造骨细胞的间充质的干细胞区别的分子的机制
来源期刊 世界干细胞杂志:英文版(电子版) 学科 医学
关键词 MESENCHYMAL stem cells OSTEOGENESIS Runt-related 2 WNT MICRORNAS
年,卷(期) 2013,(4) 所属期刊栏目
研究方向 页码范围 136-148
页数 13页 分类号 R329
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MESENCHYMAL
stem
cells
OSTEOGENESIS
Runt-related
2
WNT
MICRORNAS
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期刊影响力
世界干细胞杂志:英文版(电子版)
月刊
1948-0210
北京市朝阳区东四环中路62号楼远洋国际中
出版文献量(篇)
526
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0
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0
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