Identification of Potential Molecular Determinants of Murine Embryonic Stem Cell Differentiation by a Transposon-Based Approach

Identification of Potential Molecular Determinants of Murine Embryonic Stem Cell Differentiation by a Transposon-Based Approach
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通过基于转座子的方法鉴定小鼠胚胎干细胞分化的潜在分子决定因素

DOI:
10.1007/s12033-018-0110-7
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发表时间:
2018-08
影响因子:
2.6
通讯作者:
Yin Fang
Yin Fang
中科院分区:
医学4区
文献类型:
--
作者:
Yan Wang;Tingjun Lei;Qian Dai;Ping Ding;Tong Qiu;Yin Fang

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胚胎干细胞(Embryonic stem cells,ESCs)是一种具有自我更新能力的多能细胞,能够分化为各种类型的体细胞。自我更新的分子控制是相对较好的特点,而胚胎干细胞如何退出多能状态分化知之甚少。在这里,我们确定了分化所需的两个基因和几十个潜在的调控ESC分化的基因间区域。我们使用PiggyBac(PB)转座子为基础的方法随机突变的基因组的胚胎干细胞,并产生了数百个克隆,抵抗分化信号。对每个克隆进行测序以确定PB插入突变的基因组区域。有趣的是,许多突变位于基因间区域,我们确定了两个基因是分化所需的。这项研究将有助于进一步探索胚胎干细胞分化的新分子决定因素。
Embryonic stem cells (ESCs) are self-renewing pluripotent cells, capable of differentiating into all somatic cell types. The molecular control of self-renewal is relatively well-characterized, whereas how ESCs exit pluripotent state to differentiate is poorly understood. Here we identify two genes are required for differentiation and dozens of intergenic regions that potentially regulate ESC differentiation. We usedPiggyBac(PB) transposon-based approach to randomly mutate the genome of ESCs, and generated hundreds of clones that resisted differentiation signals. Each clone was sequenced to determine genomic regions mutated byPBinsertion. Intriguingly, many mutations were localized among intergenic regions and we identified two genes are required for differentiation. This study should facilitate further exploration of novel molecular determinants of embryonic stem cell differentiation.
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