The derivation of mesenchymal stem cells from human embryonic stem cells.

The derivation of mesenchymal stem cells from human embryonic stem cells.
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DOI:
10.1159/000151746
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发表时间:
2009
期刊:
Cells, tissues, organs
影响因子:
--
通讯作者:
Krebsbach PH
Krebsbach PH
中科院分区:
其他
文献类型:
--
作者:
Brown SE;Tong W;Krebsbach PH

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人类胚胎干细胞(HESCs)提供了一种潜在的无限来源的细胞,能够分化为特定类型的细胞,因此有望用于组织再生治疗。一些临床前研究和少数临床研究使用人骨髓基质细胞(HBMSCs)来治疗骨骼疾病和修复受损组织。然而,hBMSCs的增殖和分化能力有限,这表明需要另一种细胞来源,而hESCs可能达到这一目的。在这里,我们描述了一种从人胚胎干细胞(HES-MSCs)中可重复获得间充质干细胞的方案。HES-MSCs具有与hBMSCs相似的免疫表型,具体地说是CD73+、Stro-1+和CD45-,核型稳定。体外培养的HES-MSCs还具有向成骨细胞和脂肪细胞分化的能力。当HES-MSCs被系特异性的Col2.3-GFP慢病毒基因修饰并在成骨培养液中培养时,随着时间的推移,GFP的表达增加,表明HES-MSCs具有向成骨细胞系分化的能力,并已向成熟的成骨细胞表型发展。
Human embryonic stem cells (hESCs) hold promise for tissue regeneration therapies by providing a potentially unlimited source of cells capable of undergoing differentiation into specified cell types. Several preclinical studies and a few clinical studies use human bone marrow stromal cells (hBMSCs) to treat skeletal diseases and repair damaged tissue. However, hBMSCs have limited proliferation and differentiation capacity, suggesting that an alternate cell source is desirable, and hESCs may serve this purpose. Here we describe a protocol for the reproducible derivation of mesenchymal stem cells from hESCs (hES-MSCs). The hES-MSCs have a similar immunophenotype to hBMSCs, specifically they are CD73+, STRO-1+, and CD45-, and are karyotypically stable. The derived hES-MSCs are also capable of differentiating into osteoblasts and adipocytes. When the hES-MSCs were genetically modified with the lineage specific Col2.3-GFP lentivirus and cultured in osteogenic medium, increased GFP expression was detected over time, indicating the hES-MSCs have the capacity to differentiate down the osteogenic lineage and had progressed toward a mature osteoblast phenotype.
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期刊: PLoS medicine
影响因子: 15.8
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