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由小鼠诱导多能干细胞(iPS)衍生的具有神经潜能的自我更新神经干细胞(NS)。

Neuropotent self-renewing neural stem (NS) cells derived from mouse induced pluripotent stem (iPS) cells.

机构信息

Università degli Studi di Milano, Department of Pharmacological Sciences and Centre for Stem Cell Research, 20133 Milano, Italy.

出版信息

Mol Cell Neurosci. 2010 Mar;43(3):287-95. doi: 10.1016/j.mcn.2009.12.002. Epub 2009 Dec 21.

Abstract

Neural stem (NS) cells are a homogenous population of stem cells that expands in monolayer under serum-free conditions while remaining highly neuropotent. Here, we generated NS cells from induced pluripotent stem (iPS) cells that were previously derived from mouse fibroblasts (NS-(f)iPS). We showed that NS-(f)iPS cells exhibit long-term expansion and express markers of neurogenic radial glia. Analyses of the regional markers expressed in NS-(f)iPS cells suggested a ventral-rhombencephalic identity. Upon exposure to differentiation protocols, NS-(f)iPS cells produce neurons, astrocytes, and oligodendrocytes with an efficiency similar to ES-derived NS cells. NS-(f)iPS cells represent a new tool for studying neural cell fate determination and terminal differentiation, providing an interesting resource for experimental transplantation. Comparative studies between NS cells derived from iPS cells, reprogrammed from different somatic sources, and from authentic ES cells are necessary to identify critical elements for multipotency acquisition.

摘要

神经干细胞(NS)是一种同质的干细胞群体,在无血清条件下在单层中扩增,同时保持高度神经多能性。在这里,我们从先前从小鼠成纤维细胞中获得的诱导多能干细胞(iPS)中生成了 NS 细胞(NS-(f)iPS)。我们表明,NS-(f)iPS 细胞表现出长期扩增,并表达神经发生放射状胶质的标志物。对 NS-(f)iPS 细胞中表达的区域标志物的分析表明其具有腹侧-后脑的特征。在暴露于分化方案后,NS-(f)iPS 细胞产生神经元、星形胶质细胞和少突胶质细胞的效率与 ES 衍生的 NS 细胞相似。NS-(f)iPS 细胞代表了研究神经细胞命运决定和终末分化的新工具,为实验性移植提供了有趣的资源。有必要对源自 iPS 细胞、由不同体细胞核重编程的以及源自真正的 ES 细胞的 NS 细胞进行比较研究,以鉴定获得多能性的关键因素。

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