将产后人类表皮角质形成细胞重编程为功能性神经嵴命运细胞。

Reprogramming Postnatal Human Epidermal Keratinocytes Toward Functional Neural Crest Fates.

作者信息

Bajpai Vivek K, Kerosuo Laura, Tseropoulos Georgios, Cummings Kirstie A, Wang Xiaoyan, Lei Pedro, Liu Biao, Liu Song, Popescu Gabriela K, Bronner Marianne E, Andreadis Stelios T

机构信息

Department of Chemical and Biological Engineering, University at Buffalo, Buffalo, New York, USA.

Division of Biology and Biological Engineering, California Institute of Technology, Pasadena, California, USA.

出版信息

Stem Cells. 2017 May;35(5):1402-1415. doi: 10.1002/stem.2583. Epub 2017 Mar 5.

Abstract

During development, neural crest (NC) cells are induced by signaling events at the neural plate border of all vertebrate embryos. Initially arising within the central nervous system, NC cells subsequently undergo an epithelial to mesenchymal transition to migrate into the periphery, where they differentiate into diverse cell types. Here we provide evidence that postnatal human epidermal keratinocytes (KC), in response to fibroblast growth factor 2 and insulin like growth factor 1 signals, can be reprogrammed toward a NC fate. Genome-wide transcriptome analyses show that keratinocyte-derived NC cells are similar to those derived from human embryonic stem cells. Moreover, they give rise in vitro and in vivo to NC derivatives such as peripheral neurons, melanocytes, Schwann cells and mesenchymal cells (osteocytes, chondrocytes, adipocytes, and smooth muscle cells). By demonstrating that human keratin-14+ KC can form NC cells, even from clones of single cells, our results have important implications in stem cell biology and regenerative medicine. Stem Cells 2017;35:1402-1415.

摘要

在发育过程中,神经嵴(NC)细胞由所有脊椎动物胚胎神经板边界处的信号事件诱导产生。NC细胞最初产生于中枢神经系统内,随后经历上皮-间充质转化,迁移至外周,在那里分化为多种细胞类型。在此,我们提供证据表明,出生后的人表皮角质形成细胞(KC)在成纤维细胞生长因子2和胰岛素样生长因子1信号的作用下,可被重编程为神经嵴命运。全基因组转录组分析表明,角质形成细胞来源的神经嵴细胞与源自人胚胎干细胞的神经嵴细胞相似。此外,它们在体外和体内均可产生神经嵴衍生物,如外周神经元、黑素细胞、雪旺细胞和间充质细胞(骨细胞、软骨细胞、脂肪细胞和平滑肌细胞)。通过证明人角蛋白14+角质形成细胞甚至可以从单细胞克隆形成神经嵴细胞,我们的结果在干细胞生物学和再生医学方面具有重要意义。《干细胞》2017年;35卷:1402 - 1415页

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