在中枢神经系统中,假定T细胞瘤基因的细分和发育调节
J M Greenberg1, T Boehm, M V Sofroniew
1Laboratory of Molecular Biology, Cambridge, UK.
Nature
|March 8, 1990
概括
这项研究确定了T细胞瘤中的11p15基因 (Ttg). 它在发育中的小鼠大脑中的表达表明它在神经元发育中的作用,与其致癌功能不同.
科学领域:
- 遗传学 是一个遗传学.
- 发育生物学 发展生物学
- 神经科学是一个神经科学.
背景情况:
- 原型瘤基因通常调节细胞增殖.
- 一些原型瘤基因可能在细胞分化中发挥作用.
- 11p15基因 (Ttg) 通过转位参与T细胞瘤的发病.
研究的目的:
- 为了研究11p15基因 (Ttg) 的正常功能.
- 为了确定11p15基因在发育过程中的表达模式.
主要方法:
- 使用了具有11p15促进体和lacZ.融合结构的转基因小鼠.
- 在正在发育的小鼠后脑和中枢神经系统中分析了基因表达模式.
主要成果:
- 11p15基因在发育中的后脑的红色体中表现出细分特异性表达.
- 晚期的发育阶段在中枢神经系统中转移后神经元中表现出更广泛的,区域限制的表达.
- 表达模式在发育上受到调节,并受到细分限制.
结论:
- 11p15基因 (Ttg) 在发育过程中受到调节,并在中枢神经系统中表达.
- 它的正常功能似乎在神经元发育中,与其在T细胞瘤中的致癌作用分开.
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