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    • 1. 发明申请
    • METHOD FOR INDUCING IMPROVED DOPAMINERGIC NEURONS BY MUTANT NURR1 GENE EXPRESSION
    • 用突变NURR1基因表达诱导改良的多巴胺能神经元的方法
    • WO2010087564A3
    • 2010-09-23
    • PCT/KR2009006013
    • 2009-10-19
    • UNIV SOGANG IND UNIV COOP FOUNLEE YONG-SUNGLEE SANG-HUNPARK CHANG-HWANJO A-YOUNG
    • LEE YONG-SUNGLEE SANG-HUNPARK CHANG-HWANJO A-YOUNG
    • C12N15/12
    • C07K14/70567C12N5/0619C12N2501/38
    • The present invention provides a method for inducing dopaminergic neurons. The method comprises in vitro gene transfection to enable expression of a mutant Nurr1 gene in neural precursor cells, in which Akt-phosphorylation is significantly reduced by mutation of the conserved Akt-phosphorylation site of a Nurr1 protein. Further, the present invention provides transfected neural precursor cells enabling expression of the mutant Nurr1 gene in which Akt-phosphorylation is significantly reduced by mutation of the conserved Akt-phosphorylation site of the Nurr1 protein. In addition, the present invention provides a dopaminergic neural cell population induced from the neural precursor cells by expressing the mutant Nurr1 gene in the neural precursor cells. According to the present invention, the induction of the mutant protein expression in the neural precursor cells can generate dopaminergic neurons which are able to maintain Nurr1 protein concentration stably and natural Nurr1 function. The dopaminergic neurons produced by the mutant Nurr1 gene are resistant to toxic stimulation and ensure improved in vitro and in vivo viability after transplanting into a rat brain.
    • 本发明提供了诱导多巴胺能神经元的方法。 该方法包括体外基因转染以使得能够在神经前体细胞中表达突变体Nurr1基因,其中Akt磷酸化通过突变Nurr1蛋白的保守Akt磷酸化位点而显着降低。 此外,本发明提供了能够表达突变Nurr1基因的转染的神经前体细胞,其中Akt磷酸化通过突变Nurr1蛋白的保守Akt磷酸化位点而显着降低。 另外,本发明提供了通过在神经前体细胞中表达突变型Nurr1基因而从神经前体细胞诱导的多巴胺能神经细胞群。 根据本发明,神经前体细胞中突变蛋白表达的诱导可产生能够维持Nurr1蛋白浓度稳定和天然Nurr1功能的多巴胺能神经元。 由突变型Nurr1基因产生的多巴胺能神经元对毒性刺激具有抗性,并且确保了在移植入大鼠脑之后改善了体外和体内活力。