Generation and expansion of highly pure motor neuron progenitors from human pluripotent stem cells.

Generation and expansion of highly pure motor neuron progenitors from human pluripotent stem cells.
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DOI:
10.1038/ncomms7626
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发表时间:
2015-03-25
影响因子:
16.6
通讯作者:
Zhang, Su-Chun
Zhang, Su-Chun
中科院分区:
综合性期刊1区
文献类型:
--
作者:
Du, Zhong-Wei;Chen, Hong;Liu, Huisheng;Lu, Jianfeng;Qian, Kun;Huang, CindyTzu-Ling;Zhong, Xiaofen;Fan, Frank;Zhang, Su-Chun

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人类多能干细胞(HPSCs)为理解人类发育、模拟疾病过程和开发新的治疗方法提供了新的机会。然而,从hPSC分化而来的靶细胞类型的低效和异质性,例如运动神经元(MNS),以及我们无法维持致力于谱系的祖细胞的效力,阻碍了这些应用。在这里,通过使用调节多个信号通路的小分子的组合,我们开发了一种方法,在12天内将人类胚胎干细胞引导到近乎纯净的运动神经元前体细胞群(>95%),并在另外16天内引导到功能成熟的运动神经元前体细胞群(>90%)。更重要的是,MNPs可以扩增至少5代,使单个MNP扩增到1×104。这种方法在人类诱导的多能干细胞中是可重现的,并被应用于建立MN退行性疾病的模型和进行原则验证药物筛选试验。
Human pluripotent stem cells (hPSCs) have opened new opportunities for understanding human development, modeling disease processes and developing new therapeutics. However, these applications are hindered by low-efficiency and heterogeneity of target cell types differentiated from hPSCs, such as motor neurons (MNs), as well as our inability to maintain the potency of lineage committed progenitors. Here, by using a combination of small molecules that regulate multiple signaling pathways, we develop a method to guide human embryonic stem cells to a near-pure population (>95%) of motor neuron progenitors (MNPs) in 12 days, and an enriched population (>90%) of functionally mature MNs in an additional 16 days. More importantly, the MNPs can be expanded for at least 5 passages so that a single MNP can be amplified to 1×104. This method is reproducible in human induced pluripotent stem cells and is applied to model MNdegenerative diseases and in proof-of-principle drug screening assays.
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