一个中心体的Cdc20-APC通路控制着在神经元转移后的神经元中的树形态发生
Albert H Kim1, Sidharth V Puram, Parizad M Bilimoria
1Department of Pathology, Harvard Medical School, Boston, MA 02115, USA.
Cell
|January 27, 2009
概括
激酶促进复合体 (APC) 协活性剂Cdc20对于神经元状体的发育至关重要. 中枢体内Cdc20-APC信号调节哺乳动物大脑中的树形态发生.
科学领域:
- 神经科学是一个神经科学.
- 细胞生物学 细胞生物学
- 分子生物学分子生物学
背景情况:
- 亚纳酶促进复合体 (APC) 是一种在细胞循环进展中至关重要的无处不在联酶.
- Cdc20是APC的关键联合激活剂,主要以其在线粒分裂中的作用而闻名.
- Cdc20-APC复合体的非线性功能在很大程度上仍然没有被描述.
研究的目的:
- 为了研究Cdc20-APC在神经元转移后的神经元中的作用.
- 探索Cdc20-APC复合体在神经元发育中的非细胞功能.
主要方法:
- 在小脑切片和产后大鼠中降低Cdc20.
- 使用显微镜分析状树木的形成.
- 研究神经元内的Cdc20定位,特别是在中心体.
- 评估基因组脱乙酶6 (HDAC6) 在Cdc20功能中的作用.
主要成果:
- 降低Cdc20显著损害了小脑颗粒神经元中的树树形成.
- Cdc20定位在神经元中的中心体,这种定位对于状组织的发育至关重要.
- 基因组脱乙酶6 (HDAC6) 增强了Cdc20的多基化,并刺激了中心体Cdc20-APC的活性.
- 通过中心体Cdc20-APC通路,HDAC6促进了树的分化.
结论:
- Cdc20-APC在转移后神经元的树形态发生中起着至关重要的,以前未被认可的作用.
- Cdc20-APC的中体局部定位定义了一个神经元发育中的全方位信号通路.
- 这一途径对理解神经元连接和可塑性有重大影响.
相关概念视频
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Anaphase Promoting Complex
The stepwise destruction of specific proteins is necessary for the progression and completion of the cell cycle. Such proteins are ubiquitinated by ubiquitin ligases and then subsequently destroyed by the proteasome. The SCF (Skp1/Cullin/F-box) and the anaphase-promoting complex (APC) are two important ubiquitin ligases involved in cell cycle progression. While SCF is active throughout the cell cycle, APC gets activated during metaphase to anaphase transition. Cdc20 or Cdh1 binds to APC and...
Anaphase Promoting Complex
The stepwise destruction of specific proteins is necessary for the progression and completion of the cell cycle. Such proteins are ubiquitinated by ubiquitin ligases and then subsequently destroyed by the proteasome. The SCF (Skp1/Cullin/F-box) and the anaphase-promoting complex (APC) are two important ubiquitin ligases involved in cell cycle progression. While SCF is active throughout the cell cycle, APC gets activated during metaphase to anaphase transition. Cdc20 or Cdh1 binds to APC and...


