EMBO J:NeuroD1基因告诉你,如何对大脑发育翻云覆雨

2015-11-19 QQduhq 译 MedSci原创

大脑的发育是基因特异性表达导致干细胞分化结果。最近一项新的研究显示,NeuroD1基因不仅参与大脑干细胞的分化过程,同时也发挥重要的调节作用。这项研究发表在The EMBO Journal。

大脑的发育是基因特异性表达导致干细胞分化的结果。最近一项新的研究显示,NeuroD1基因不仅参与大脑干细胞的分化过程,同时也发挥重要的调节作用。这项研究发表在The EMBO Journal


德国分子生物学研究所(IBM)的研究人员向众人展示了NeuroD1调节大脑细胞形成的复杂机制。他们认为,他们的发现将不仅可增加人们对大脑发育的认知,同时有助于治疗帕金森病等神经退行性疾病。 

帕金森病和老年痴呆症等神经退行性疾病,导致民众的大脑功能减退,损失的脑细胞无法再生,同时会给老人带来更严重的伤害。 

再生医学的目的是补充机体丧失的细胞。但大脑是一个复杂的器官,我们并不知道如何从分子水平的角度对大脑的发育有十分全面的了解。 

IBM的研究人员一直在研究NeuroD1基因在大脑发育过程中所起的作用。他们已经证实,NeuroD1基因在大脑发育的起始阶段便十分活跃。 在研究中,研究人员发现,NeuroD1基因就像一个总开关,调控大脑发育过程。他们还发现,NeuroD1在不改变其他基因DNA的前提下,改变基因的后续表达。它控制标记基因的开启或关闭状态,并影响相关基因的表达。同时,研究人员发现了NeuroD1基因的另一个重要功能:即便NeuroD1基因不再表达,它也能持续影响大脑的发育过程。

Abhijeet Pataskar和Johannes Jung认为,NeuroD1基因在细胞中发挥着表观遗传记忆的功能。

研究表明,一个单基因NeuroD1,有能力改变细胞的表观遗传记忆,进而调控基因表达。

原始出处:

Scientists uncover mechanism that explains how single gene drives brain development,MNT,19,Nov,2015

Abhijeet Pataskar et al.NeuroD1 reprograms chromatin and transcription factor landscapes to induce the neuronal program.The EMBO Journal.Oct 29,2015

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    2015-11-21 neurowu
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