相关实验视频
Updated: Jul 28, 2025

10:43
Modeling Oral-Esophageal Squamous Cell Carcinoma in 3D Organoids
Published on: December 23, 2022
3.4K
PHGDH通过Wnt/β-catenin通路促进食道状细胞癌的进展
Xiaoxuan Duan1, Yihuan Chen1, Kai Zhang1
1Department of Pathophysiology, School of Basic Medical Sciences, Zhengzhou University, Zhengzhou, Henan Province 450001, PR China.
Cellular signalling
|June 1, 2023
概括
糖酸脱酶 (PHGDH) 在食道状细胞癌 (ESCC) 中高度表达,预测预后不佳. 通过抑制Wnt/β-catenin通路,PHGDH的 Knockdown抑制ESCC的进展,这表明PHGDH是潜在的治疗标.
科学领域:
- 在瘤学瘤学.
- 分子生物学分子生物学
- 生物化学 生化学
背景情况:
- 食道状细胞癌 (ESCC) 是一个重大的健康挑战,特别是在中国,有效的治疗策略有限.
- 糖酸脱酶 (PHGDH) 是血清素生物合成中的关键酶,在ESCC病原发生过程中起着未经描述的作用.
研究的目的:
- 调查PHGDH在ESCC中的表达和预后意义.
- 阐明PHGDH在ESCC中的生物学功能和治疗潜力.
主要方法:
- 对PHGDH表达的生物信息分析 (UALCAN,DAVID,GSEA) 以及其与ESCC的预后的相关性.
- 在体外和体内实验,涉及PHGDH在ESCC细胞和异种移植模型中的敲除.
- 细胞增殖,细胞亡,细胞循环,血管生成和Wnt/β-catenin通路活性的评估.
主要成果:
- 在ESCC中,PHGDH显著过度表达,高表达与患者预后不佳相关.
- 通过PHGDH敲击抑制ESCC细胞增殖,诱导细胞循环停止和细胞亡,并抑制血管生成.
- 在体内,PHGDH Knockdown有效地降低了瘤生长,并与抑制Wnt/β-catenin信号通路有关.
结论:
- 升高的PHGDH表达是ESCC中预后不佳的预测标记.
- 针对PHGDH,可能通过Wnt/β-catenin信号通路,为ESCC治疗提供了一个有前途的治疗途径.
相关概念视频
Barrett Esophagus-I: Introduction
143
Barrett's esophagus is a medical condition where the esophageal mucosa is significantly damaged by stomach acid or other digestive fluids, often due to long-term exposure associated with gastroesophageal reflux disease (GERD). In GERD, a weakened or abnormally relaxed lower esophageal sphincter allows stomach acid to flow persistently into the esophagus.
This constant acid exposure transforms the esophagus's pink mucosal lining (stratified squamous epithelium) into a type of lining more...
This constant acid exposure transforms the esophagus's pink mucosal lining (stratified squamous epithelium) into a type of lining more...
143
Hedgehog Signaling Pathway
7.4K
The Hedgehog gene (Hh) was first discovered due to its control of the growth of disorganized, hair-like bristles phenotype in Drosophila, much like hedgehog spines. Hh plays a crucial role in the development of organs and the maintenance of homeostasis in both invertebrates and vertebrates. However, while Drosophila has only one Hh protein, mammals have multiple functional Hedgehog proteins - Sonic (Shh), Desert (Dhh), and Indian Hedgehog (Ihh). All of these homologous proteins have adapted to...
7.4K
Canonical Wnt Signaling Pathway
8.8K
The gene encoding the main signaling molecules of the Wnt signaling pathways (the Wnt proteins) was discovered almost four decades ago by Nüsslein-Volhard and Wieschaus. They identified and originally named the gene "wingless" (wg) after a phenotype discovered during their landmark genetic screen in Drosophila for body pattern defects. At around the same time, another researcher named Harold Varmus found that a murine tumor virus activates the mammalian wg homolog, Int-1, which...
8.8K
Role 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
Cadherins in Tissue Organization
3.0K
The cadherins are a superfamily of cell adhesion molecules comprising over 180 variants, with specific tissues expressing a particular combination of cadherin types. Cadherins generally exhibit homophilic binding; i.e., cadherins on one cell bind to cadherins of the same or closely related type on another cell. Thus, cells of the same type have a specific affinity to bind to each other and sort themselves into clusters to form tissues.
Cell Sorting During Development
Cell sorting plays an...
Cell Sorting During Development
Cell sorting plays an...
3.0K
Role of Ephrin-Eph Signalling in Intestinal Stem Cell Renewal
2.3K
Erythropoietin-producing hepatocellular carcinoma receptor (Eph) and its ligand, Eph receptor-interacting protein (Ephrin) were first discovered in the human carcinoma cell line, hence the name. Ephrin-Eph interaction guides cells to reach their appropriate location in adult tissues. They also play an essential role in the immune system by helping in immune cell migration, adhesion, and activation. Based on their structure and function, Eph is divided into two classes — EphA and EphB.
2.3K

