c-Jun通过抑制通过CDC16形成APC促进神经母细胞细胞分化,并减少神经母细胞瘤恶性瘤
Yunyun Wang1, Jingjing Huang2, Zhenhua Song2
1Department of Biochemistry and Molecular Biology, Cell Signal Transduction Laboratory, School of Basic Medical Science, Henan University, Kaifeng, Henan Province, 475004, China. wangyun1986307@henu.edu.cn.
Biology direct
|March 28, 2025
概括
c-Jun蛋白通过阻止细胞循环,促进神经母细胞瘤细胞的分化. 过度表达c-Jun抑制瘤生长和迁移,为神经母细胞瘤提供了潜在的治疗策略.
科学领域:
- 在瘤学瘤学.
- 细胞生物学 细胞生物学
- 发展生物学 发展生物学
背景情况:
- 神经母细胞瘤是一种儿科癌症,神经元分化受损,影响患者的治疗结果.
- 了解神经母细胞瘤分化的分子驱动因素对于开发有效治疗方法至关重要.
- 激活蛋白-1 (AP-1) 复合体,包括c-Jun,在细胞调节中起作用,但其在神经母细胞瘤分化中的具体功能尚不清楚.
研究的目的:
- 研究c-Jun在调节神经母细胞瘤细胞分化中的作用.
- 阐明c-Jun影响神经母细胞瘤细胞周期进展和分化的分子机制.
主要方法:
- 网红酸 (RA) 处理以诱导c-Jun表达.
- 流细胞计测试以评估细胞循环停止.细胞循环停止.
- 同免疫沉 (co-IP) 用于研究蛋白质相互作用.
- EdU扩散测试和过井实验,以评估扩散和迁移.
主要成果:
- 网红酸在神经母细胞细胞中的c-Jun表达上调.
- c-Jun过度表达导致G1阶段细胞周期停止,促进分化.
- c-Jun与CDC16有竞争性相互作用,这是阿纳酶促进复合体 (APC) 的一个子单元.
- 这种相互作用减少了APC的形成,抑制了细胞周期的进展,并降低了神经母细胞瘤细胞的增殖和迁移.
结论:
- c-Jun是神经母细胞瘤细胞周期和分化的关键调节者.
- c-Jun和CDC16之间的相互作用对于抑制细胞周期进展至关重要.
- 针对c-Jun/CDC16相互作用可能为诱导神经母细胞瘤分化提供一种新的治疗策略.
相关概念视频
03:14Notch Signaling Pathway
The Notch signaling pathway is a major intracellular signaling pathway that is highly conserved over a broad spectrum of metazoan species. It stands unique from other intracellular signaling mechanisms in animals because notch protein itself acts as the receptor as well as the primary signaling molecule.
The Notch gene came into the limelight in 1914 after the discovery that its mutation in Drosophila melanogaster leads to a serrated (or "notched") wing margin phenotype. It was not until 1985...
The Notch gene came into the limelight in 1914 after the discovery that its mutation in Drosophila melanogaster leads to a serrated (or "notched") wing margin phenotype. It was not until 1985...
02:34Inhibition of Cdk Activity
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...
02:23Abnormal Proliferation
Under normal conditions, most adult cells remain in a non-proliferative state unless stimulated by internal or external factors to replace lost cells. Abnormal cell proliferation is a condition in which the cell's growth exceeds and is uncoordinated with normal cells. In such situations, cell division persists in the same excessive manner even after cessation of the stimuli, leading to persistent tumors. The tumor arises from the damaged cells that replicate to pass the damage to the daughter...
00:50Anaphase 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...
01:20The Retinoblastoma Gene
Tumor suppressor genes are normal genes that can slow down cell division, repair DNA mistakes, or program the cells for apoptosis in case of irreparable damage. Hence, they play an essential role in preventing the proliferation of damaged cells.
The first-ever tumor suppressor gene called Rb was identified in retinoblastoma - a rare eye tumor in children. In inherited forms of the disease, a child inherits one defective copy of the Rb gene, which predisposes them to retinoblastoma. However,...
The first-ever tumor suppressor gene called Rb was identified in retinoblastoma - a rare eye tumor in children. In inherited forms of the disease, a child inherits one defective copy of the Rb gene, which predisposes them to retinoblastoma. However,...
01:12Role Of Notch Signalling In Intestinal Stem Cell Renewal
Notch signaling was first discovered in Drosophila melanogaster, where it is involved in cell lineage differentiation. Notch signaling regulates the maintenance and differentiation of intestinal stem cells or ISCs by controlling the expression of atonal homolog 1 or Atoh1. Atoh1 directs cells to differentiate into secretory cells.
Direct cell-to-cell contact is needed for the activation of Notch signaling. The signal is initiated when a notch ligand binds to a receptor on an adjacent cell, also...
Direct cell-to-cell contact is needed for the activation of Notch signaling. The signal is initiated when a notch ligand binds to a receptor on an adjacent cell, also...