| Rapid and Simplified Induction of Neural Stem/Progenitor Cells (NSCs/NPCs) and Neurons from Human Induced Pluripotent Stem Cells (hiPSCs)
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Author:
Date:
2021-02-05
[Abstract] Human induced pluripotent stem cells (iPSCs) and their progeny displaying tissue-specific characteristics have paved the way for regenerative medicine and research in various fields such as the elucidation of the pathological mechanism of diseases and the discovery of drug candidates. iPSC-derived neurons are particularly valuable as it is difficult to analyze neural cells obtained from the central nervous system in humans. For neuronal induction with iPSCs, one of the commonly used approaches is the isolation and expansion of neural rosettes, following the formation of embryonic bodies (EBs). However, this process is laborious, inefficient, and requires further purification of the cells. To overcome these limitations, we have developed an efficient neural induction method that allows for ...
[摘要] [摘要]人类诱导的多能干细胞(iPSC)及其后代具有组织特异性,为再生医学的研究铺平了道路,并在疾病的病理机制阐明和候选药物的发现等领域进行了研究。iPSC集-来源的神经元是特别有价值的,因为它是难以分析神经细胞获自人类的中枢神经系统。对于用iPSC诱导神经元,最常用的方法之一是在形成胚体(EB)之后分离和扩展神经玫瑰花结。然而,该过程费力,效率低下,并且需要进一步纯化细胞。为了克服这些限制,我们已经开发出一种高效神经诱导方法,该方法允许来自于7天内的iPSC神经干/祖细胞(NSCs / NPC的)的产生和功能的成熟神经元的。我们的方法产生一个PAX6 -阳性同质细胞群中,皮质神经干细胞/ NPC的,和t他所得的NSCs / NPC的可冷冻保存,膨胀,并分化在功能性成熟神经元。此外,我们的协议将比其他方法便宜,因为该协议在神经诱导期间需要较少的神经补充。本文还介绍了FM1 - 43成像测定法中,其是用于所述的iPSC衍生的突触前评估中有用的人类神经元。该协议为生成NSC / NPC和神经元提供了一种快速且简化的方法,使研究人员能够建立体外细胞模型来研究脑部疾病的病理学。
[背景]人类iPSC于2007年通过使用四种转录因子(Oct4,Sox2,Klf4和c-Myc)对皮肤成纤维细胞进行重编程而首次建立,并且表现出与胚胎干细胞(ESCs)相似的特征,包括其多能性和自我-更新(Takahashi等,2007; ...
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| In vitro Differentiation of Human iPSC-derived Cardiovascular Progenitor Cells (iPSC-CVPCs)
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Author:
Date:
2020-09-20
[Abstract] Induced pluripotent stem cell derived cardiovascular progenitor cells (iPSC-CVPCs) provide an unprecedented platform for examining the molecular underpinnings of cardiac development and disease etiology, but also have great potential to play pivotal roles in the future of regenerative medicine and pharmacogenomic studies. Biobanks like iPSCORE ( Stacey et al., 2013; Panopoulos et al., 2017), which contain iPSCs generated from hundreds of genetically and ethnically diverse individuals, are an invaluable resource for conducting these studies. Here, we present an optimized, cost-effective and highly standardized protocol for large-scale derivation of human iPSC-CVPCs using small molecules and purification using metabolic selection. We have successfully applied this protocol ...
[摘要] [摘要 ] 诱导性多能干细胞衍生的心血管祖细胞(iPSC-CVPCs)为检查心脏发育和疾病病因的分子基础提供了前所未有的平台,但在再生医学和药物基因组学的未来中也具有重要作用。像iPSCORE这样的生物库(Stacey 等,2013 ;Panopoulos 等,2017), 其中包含由数百个遗传和种族不同的个体产生的iPSC,是进行这些研究的宝贵资源。在这里,我们为小分子大规模衍生人iPSC-CVPCs和代谢选择纯化提供了一种优化,具有成本效益和高度标准化的方案。我们已经成功地应用了该协议,从154种不同的iPSCORE iPSC品系中获得了iPSC-CVPC,从而获得了大量的高纯度心脏细胞。一个重要的我们的协议的组成部分是Ç ELL Ç onfluency 估计S(ccEstimate ),用于估计当iPSC集单层将达到80%汇合,这是用于发起的iPSC-CVPC推导最佳的时间的自动方法,并且使得协议为易于在具有不同增长率的iPSC系列中使用。此外,我们发现跨iPSC-CVPC的细胞异质性是由于两种截然不同的心脏细胞类型(心肌细胞(CMs)和心外膜衍生细胞(EPDCs))的比例不同导致的,这两种细胞在心脏再生中均具有关键作用。该协议消除了iPSC线到线优化的需要,并且可以轻松地进行调整和扩展,以进行高通量研究或生成大量适用于再生医学应用的细胞。
[背景 ] ...
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