普罗斯佩罗基因指定了多索菲拉中枢神经系统中的细胞命运
C Q Doe1, Q Chu-LaGraff, D M Wright
1Department of Cell and Structural Biology, University of Illinois, Urbana 61801.
Cell
|May 3, 1991
概括
繁荣基因对Drosophila的神经元多样性至关重要. 它控制神经细胞中的细胞命运,确保神经元的正常发育,并防止轴突路径发现错误.
科学领域:
- 发育生物学 发展生物学
- 神经科学是一个神经科学.
- 遗传学 是一个遗传学.
背景情况:
- 神经元多样性的产生机制在很大程度上是未知的.
- 了解细胞命运决定是解读神经系统的关键.
- 家庭盒子基因在中枢神经系统发育中起作用.
研究的目的:
- 鉴定了控制细胞命运的基因 在多虫中枢神经系统.
- 检测影响 homeobox 基因表达和细胞命运的突变.
- 发现神经元干细胞 (神经母细胞) 中表达的基因.
主要方法:
- 在发育中的中枢神经系统中选改变 homeobox 基因表达的突变.
- 利用增强器陷线来识别神经母细胞中的基因.
- 分析了神经细胞细胞系中prospero基因的功能.
主要成果:
- 繁荣基因在突变和增强器陷屏幕中被确定.
- 普罗斯佩罗在神经细胞,感觉神经元前体和质前体的子集中表达,但不是在神经元中表达.
- 神经母细胞中前功能丧失导致异常的细胞系和神经元与轴突路径发现缺陷.
结论:
- 普罗斯佩罗是一种新型基因,在神经母细胞中表达.
- 普罗斯佩罗在确定神经元命运和确保正确的神经元发育方面发挥着至关重要的作用.
- 繁荣的正确功能对于产生神经元多样性和预防发育错误至关重要.
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