相关实验视频
Updated: Jun 21, 2025
07:33
In vitro Organoid Culture of Primary Mouse Colon Tumors
Published on: May 17, 2013
35.1K
SMAD7维持XIAP表达和结肠直肠癌细胞的迁移
Marco Colella1, Andrea Iannucci2, Claudia Maresca1
1Department of Systems Medicine, University of Rome "Tor Vergata", 00133 Rome, Italy.
Cancers
|July 13, 2024
概括
SMAD7蛋白质通过调节细胞骨架和增加X结合抑制细胞灭蛋白 (XIAP) 表达,促进结肠直肠癌 (CRC) 细胞迁移. 这项研究揭示了SMAD7的存在.
科学领域:
- 细胞生物学 细胞生物学
- 癌症研究 癌症研究
- 分子生物学分子生物学
背景情况:
- 细胞骨重组和细胞粘附分子的变化在瘤细胞转移中至关重要.
- 大肠直肠癌 (CRC) 细胞表现出高水平的SMAD7,这是一种影响CRC细胞生长的蛋白质.
研究的目的:
- 研究SMAD7在调节结直肠癌细胞中细胞骨重组和动态中的作用.
- 阐明将SMAD7与结直肠癌细胞迁移联系起来的分子机制.
主要方法:
- 在HCT116和DLD1CRC细胞系中使用反感性寡核酸的SMAD7敲除.
- 基因阵列,实时PCR和西方涂抹来分析基因表达变化.
- 评估细胞迁移速率和F-ACTIN丝含量.
主要成果:
- 通过SMAD7的淘汰,显著降低了CRC细胞迁移和F-ACTIN含量.
- 在SMAD7缺乏的细胞中观察到X链接的亡蛋白抑制剂 (XIAP) 的下调.
- SMAD7积极调节XIAP表达,这与癌细胞迁移有关.
结论:
- 在结直肠癌细胞迁移和XIAP表达中,SMAD7起着积极的调节作用.
- SMAD7影响结直肠癌细胞的细胞骨架构.
- 研究结果表明,SMAD7通过一种新的机制影响CRC转移.
相关概念视频
02:23Abnormal Proliferation
4.5K
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...
4.5K
01:12Role Of Notch Signalling In Intestinal Stem Cell Renewal
2.1K
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...
2.1K