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相关概念视频

Inhibition of Cdk Activity02:34

Inhibition of Cdk Activity

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The orderly progression of the cell cycle depends on the activation of Cdk protein by binding to its cyclin partner. However, the cell cycle must be restricted when undergoing abnormal changes. Most cancers correlate to the deregulated cell cycle, and since Cdks are a central component of the cell cycle, Cdk inhibitors are extensively studied to develop anticancer agents. For instance, cyclin D associates with several Cdks, such as Cdk 4/6, to form an active complex. The cyclin D-Cdk4/6 complex...
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M-Cdk Drives Transition Into Mitosis02:15

M-Cdk Drives Transition Into Mitosis

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Checkpoints throughout the cell cycle serve as safeguards and gatekeepers, allowing the cell cycle to progress in favorable conditions and slow or halt it in problematic ones. This regulation is known as the cell cycle control system.
Cyclin-dependent kinases, or Cdks, work in concert with cyclins to control cell cycle transitions. M-Cdk, a complex of Cdk1 bound to M cyclin, is a well-known example of this coordinated control that drives the transition from the G2 to the M phase.
M cyclin...
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Positive Regulator Molecules02:39

Positive Regulator Molecules

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Mitotic cell division results in daughter cells that exactly resemble the parent cell. However, errors in the DNA replication or distribution of genetic material may lead to genetic mutations that may be passed down to every new cell formed from the resulting abnormal cell. Propagation of such mutant cells is restricted through checkpoint mechanisms present at different stages of the cell cycle. These checkpoints involve regulator molecules that either promote or demote cell cycle events.
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cAMP-dependent Protein Kinase Pathways01:25

cAMP-dependent Protein Kinase Pathways

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Cyclic Adenosine Monophosphate (cAMP) is an essential second messenger that activates protein kinase A (PKA) and regulates various biological processes. A single epinephrine molecule binds to GPCR and activates several heterotrimeric G proteins, each stimulating multiple adenylyl cyclase, amplifying the signal, and synthesizing large numbers of cAMP molecules. Small changes in cAMP concentration affect PKA activity. The binding of four cAMP molecules induces a conformational change in PKA,...
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相关实验视频

Updated: Jul 19, 2025

Rapid Detection of Neurodevelopmental Phenotypes in Human Neural Precursor Cells NPCs
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对于产后大脑发育而言,Cdc7激酶是必需的.

Karin Hori1,2, Satoshi Yamazaki1, Chiaki Ohtaka-Maruyama3

  • 1Genome Dynamics Project, Department of Basic Medical Sciences, Tokyo Metropolitan Institute of Medical Science, Tokyo, Japan.

Genes to cells : devoted to molecular & cellular mechanisms
|August 16, 2023
PubMed
概括
此摘要是机器生成的。

Cdc7激酶对大脑发育至关重要,它在神经干细胞中被淘汰,导致严重的生长缺陷和大脑形成受损. 这突出了Cdc7的意义.

关键词:
这是Cdc7酶.复制DNA复制DNA复制DNA复制这是Nestin-Cre.大脑发育大脑的发育大脑的发展淘汰赛小鼠 淘汰赛小鼠

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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
  • 遗传学 是一个遗传学.

背景情况:

  • Cdc7激酶对于DNA复制和染色体事件至关重要.
  • 了解Cdc7在大脑发育中的作用至关重要.

研究的目的:

  • 在大脑发育过程中研究神经干细胞中Cdc7的功能.
  • 分析Cdc7淘汰对神经发育和功能的影响.

主要方法:

  • 产生条件淘汰赛小鼠 (Cdc7Fl/FlNestinCre) 删除神经干细胞中的Cdc7.
  • 观察和分析发育现象,包括生长,生存,运动功能和大脑结构.

主要成果:

  • Cdc7淘汰赛小鼠显示严重增长迟缓,出生后大脑发育受损,运动功能障碍,寿命缩短.
  • 大脑皮层的形成有缺陷,而小脑颗粒细胞数量减少,表明Cdc7在增殖中的作用.
  • 普尔金尼细胞层的形成受损,这表明Cdc7也可能影响细胞迁移.

结论:

  • 在小鼠大脑发育过程中,Cdc7在DNA复制,细胞增殖和潜在的细胞迁移中发挥着关键的差异性作用.
  • 这些发现强调了Cdc7激酶在神经发育过程中的重要性.