Stem Cell Reports:GnRH神经元诱导分化方案

2016-07-22 佚名 生物谷

近日,来自芬兰的研究人员在国际学术期刊Stem Cell Reports上发表了一项最新研究进展,他们在文章中介绍了诱导人类多能干细胞形成促性腺激素释放激素(GnRH)神经元的新方法,利用该方法获得的GnRH神经元或将为人类生殖系统疾病的机制研究提供一个细胞模型。 促性腺激素释放激素神经元能够调节人类青春期和生殖,在体外模拟这类神经元的发育和功能将有助于相关疾病的基础研究和临床转化。&n



近日,来自芬兰的研究人员在国际学术期刊Stem Cell Reports上发表了一项最新研究进展,他们在文章中介绍了诱导人类多能干细胞形成促性腺激素释放激素(GnRH)神经元的新方法,利用该方法获得的GnRH神经元或将为人类生殖系统疾病的机制研究提供一个细胞模型。
 
促性腺激素释放激素神经元能够调节人类青春期和生殖,在体外模拟这类神经元的发育和功能将有助于相关疾病的基础研究和临床转化。
 
在这项研究中,研究人员开发了一种三步法诱导方案,能够诱导人类多能干细胞分化形成具有GnRH分泌能力的神经元。在这个诱导方案中首先通过双SMAD抑制(dual  SMAD inhibition)诱导人类多能干细胞形成表达FOXG1,EMX2和PAX6的神经祖细胞。随后再用FGF8对神经祖细胞进行10天处理,FGF8是GnRH神经元发生过程中的一个关键配体。最后再使用Notch抑制剂诱导细胞成熟,使其变成双极的TUJ1阳性神经元,这类神经元可以强力表达GNRH1并能够将GnRH十肽分泌到培养液中。
 
研究人员表示这种诱导方案对人类胚胎干细胞和诱导多能干细胞的诱导分化都适用。总的来说该研究为人类青春期及生殖相关疾病研究提供了新工具。

原始出处

Carina Lund1, Kristiina Pulli1, Venkatram Yellapragada1, Paolo Giacobini3, 4, Karolina Lundin5, Sanna Vuoristo1, Timo Tuuri5, Parinya Noisa6, 7, Taneli Raivio1, 2, 7.Development of Gonadotropin-Releasing Hormone-Secreting Neurons from Human Pluripotent Stem CellsStem Cell Reports

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    2017-06-07 维他命
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