相关实验视频
Updated: May 29, 2025

10:43
Modeling Oral-Esophageal Squamous Cell Carcinoma in 3D Organoids
Published on: December 23, 2022
3.2K
BRD4诱导食道状细胞癌通过Wnt/β-catenin通路进展
Haiyu Niu1, Hanwen Wei2, Xiaochun Zhou3
1Department of Oncology, The Second Hospital & Clinical Medical School, Lanzhou University, Lanzhou, 730030, China.
Biochemical genetics
|February 4, 2025
概括
博莫代因和额外末端域-4 (BRD4) 通过促进细胞循环和Wnt/β-catenin信号传递,驱动食道状细胞癌 (ESCC) 的进展. 准BRD4为ESCC治疗提供了一个有前途的治疗策略.
科学领域:
- 在瘤学瘤学.
- 分子生物学分子生物学
- 癌症研究 癌症研究
背景情况:
- 基因和额外末端域-4 (BRD4) 是基因转录的关键调节器,与各种疾病有关.
- 在食道状细胞癌 (ESCC) 中BRD4的特定作用仍然在很大程度上未被研究.
研究的目的:
- 阐明食道状细胞癌 (ESCC) 中BRD4的功能和分子机制.
- 评估BRD4作为ESCC的潜在治疗点.
主要方法:
- 在ESCC细胞系中进行BRD4淘汰和过度表达实验.
- 皮尔森相关性和丰富性分析以确定相关途径.
- 下游目标的验证,包括Cyclin D1,c-Myc和上皮细胞转化为介质细胞 (EMT).
- 救援实验使用c-Myc过度表达.
- 单细胞转录组测序以评估瘤微环境的影响.
主要成果:
- 抑制BRD4抑制了ESCC细胞的增殖,迁移和入侵,同时诱导了细胞亡和细胞循环停止.
- BRD4表达与细胞周期和Wnt/β-catenin信号通路活性正相关.
- 减少BRD4表达导致循环D1,c-Myc,EMT和Wnt/β-catenin信号的下调.
- c-Myc过度表达部分挽救了BRD4敲击的抑制作用.
- 单细胞测序提供了关于瘤微环境对BRD4.4的影响的见解.
结论:
- BRD4在促进ESCC通过细胞周期和Wnt/β-catenin信号通路的进展方面发挥着关键作用.
- 抑制BRD4有效抑制ESCC细胞生长和相关过程.
- BRD4代表了食道状细胞癌治疗的潜在治疗标.
相关概念视频
Barrett Esophagus-I: Introduction
56
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...
56
Canonical Wnt Signaling Pathway
8.7K
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...
8.7K
Non-Canonical Wnt Signaling Pathways
7.2K
Wnt is a zygotic effect gene that is expressed during very early embryonic development. It regulates various processes in animals starting from early development through the adult stage, such as organogenesis in the embryo and maintenance of neuronal and blood stem cells. Wnt proteins can induce a wide variety of intracellular pathways depending upon the specific abilities of different Wnt ligands to form a complex with shared and cognate receptors in the presence of different co-receptors. The...
7.2K
The Retinoblastoma Gene
4.0K
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,...
4.0K
Role of Ephrin-Eph Signalling in Intestinal Stem Cell Renewal
2.2K
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.
2.2K
Barrett Esophagus-II: Clinical Manifestations and Management
100
Individuals with Barrett's esophagus are often asymptomatic, but they may experience symptoms commonly associated with GERD, such as heartburn and acid regurgitation. Additional symptoms can include difficulty swallowing, chest pain, unintentional weight loss, blood in the stool (which may appear black, tarry, or bloody), and episodes of vomiting.
To diagnose Barrett's esophagus, healthcare providers often recommend an endoscopy for those showing symptoms of acid reflux. The procedure...
To diagnose Barrett's esophagus, healthcare providers often recommend an endoscopy for those showing symptoms of acid reflux. The procedure...
100

