相关实验视频
Updated: Sep 16, 2025

08:12
Identification of EGFR and RAS Inhibitors using Caenorhabditis elegans
Published on: October 5, 2020
3.1K
通过抑制DUSP4/CREB/PRKACB通路,FENDRR会影响COAD的生物行为
Hao Zhang1, Li Hong1, Zirui Zhuang1
1Department of General Surgery, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu Province, China.
International journal of genomics
|July 9, 2025
概括
长非编码RNAFENDRR作为结直肠癌 (CRC) 的瘤抑制剂. 较低的FENDRR水平与更糟糕的结果相关,其上调抑制CRC细胞生长和转移.
科学领域:
- 在瘤学瘤学.
- 分子生物学分子生物学
- 遗传学 是一个遗传学.
背景情况:
- 大肠直肠癌 (CRC) 是癌症死亡的主要原因.
- 长非编码RNAs (lncRNAs) 是结肠腺癌的新兴生物标志物.
- 目前正在研究CRC中的FENDRR (胎儿致命非编码发育调节RNA) 功能.
研究的目的:
- 研究 lncRNA FENDRR 在结直肠腺癌 (COAD) 进展中的作用和机制.
- 评估FENDRR表达及其与COAD患者临床结果的相关性.
主要方法:
- 在TCGA数据集 (COAD和READ) 中对FENDRR表达的生物信息分析.
- 在临床COAD标本中验证FENDRR水平.
- 在HCT-116细胞中FENDRR上调后的体外功能测定 (增殖,迁移,入侵).
- 西方斑点和qPCR来确认分子路径的改变.
主要成果:
- 在COAD和READ组织中,FENDRR表达减少,与COAD中高级T阶段有关.
- 低FENDRR表达与COAD患者的临床结果较差相关.
- 过度表达FENDRR通过降低DUSP4/CREB/PRKACB通路的调节和逆转EMT来抑制COAD细胞的增殖,迁移和入侵.
结论:
- 在COAD中,FENDRR作为瘤抑制基因起作用.
- 芬德尔抑制COAD细胞的增殖,入侵和转移.
- 作为COAD的诊断和预后生物标志物,FENDRR具有潜力.
相关概念视频
Interactions Between Signaling Pathways
6.5K
Signaling cascades usually lack linearity. Multiple pathways interact and regulate one another, allowing cells to integrate and respond to diverse environmental stimuli.
Convergence and divergence, and cross-talk between signaling pathways
Two distinct signaling pathways can converge on a single functional unit, which may either be a single protein or a complex of proteins. The response is either functionally distinct or synergistic between the two pathways but different from the response...
Convergence and divergence, and cross-talk between signaling pathways
Two distinct signaling pathways can converge on a single functional unit, which may either be a single protein or a complex of proteins. The response is either functionally distinct or synergistic between the two pathways but different from the response...
6.5K
cAMP-dependent Protein Kinase Pathways
6.6K
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,...
6.6K
GPCRs Regulate Adenylyl Cylase Activity
6.0K
Some GPCRs transmit signals through adenylyl cyclase (AC), a transmembrane enzyme. AC helps synthesize second messenger cyclic adenosine monophosphate (cAMP). AC catalyzes cyclization reaction and converts ATP to cAMP by releasing a pyrophosphate. The pyrophosphate is further hydrolyzed to phosphate by the enzyme pyrophosphatase, which drives cAMP synthesis to completion. However, cAMP is rapidly degraded to 5′ AMP by the enzymes phosphodiesterase (PDE), preventing overstimulation of...
6.0K
Inhibition of Cdk Activity
4.9K
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...
4.9K
Notch Signaling Pathway
4.4K
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...
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...
4.4K
Canonical Wnt Signaling Pathway
9.0K
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...
9.0K

