相关实验视频
Updated: Jul 26, 2025

06:48
An Orthotopic Murine Model of Human Prostate Cancer Metastasis
Published on: September 18, 2013
35.2K
通过去酸化MET,PTPRO抑制食道癌的淋巴结转移
Hongmei Dong1, Wan Lin2, Liang Du3
1Institute of Precision Cancer Medicine and Pathology, And Department of Pathology, School of Medicine, And Minister of Education Key Laboratory of Tumor Molecular Biology, Jinan University, Guangzhou, Guangdong, China; Department of General Surgery, The First Affiliated Hospital of Jinan University, Guangzhou, Guangdong, China.
Cancer letters
|June 18, 2023
概括
蛋白氨酸酸酶受体O型 (PTPRO) 通过抑制MET信号,抑制食道状细胞癌 (ESCC) 转移. 低PTPRO和高酸化MET预测ESCC患者的预后不佳.
科学领域:
- 在瘤学瘤学.
- 分子生物学分子生物学
- 生物化学 生物化学
背景情况:
- 蛋白氨酸酸酶受体O型 (PTPRO) 是一种与膜结合的氨酸酸酶.
- 通过促进剂高甲基化对PTPRO的表观遗传沉默与各种恶性瘤有关.
- 在食道状细胞癌 (ESCC) 转移中PTPRO的作用需要阐明.
研究的目的:
- 研究PTPRO在抑制ESCC转移中的功能.
- 阐明 PTPRO 影响转移的分子机制.
- 评估PTPRO和化MET (p-MET) 作为ESCC的预后生物标志物.
主要方法:
- 使用ESCC的细胞和动物模型.
- 分析患者样本以检测PTPRO表达和MET酸化.
- 在特定的氨酸残留物 (Y1234/1235) 上研究了PTPRO在MET上的脱酸化活性.
主要成果:
- 在临床前模型中证明PTPRO抑制ESCC转移.
- 确定了PTPRO的作用机制:通过在Y1234/1235.5处对MET的脱化来抑制MET介导的转移.
- 发现,低PTPRO和高p-MET表达的患者的预后明显较差.
结论:
- PTPRO作为ESCC转移的抑制剂.
- 通过去酸化MET,一种转移的关键媒介,PTPRO抑制转移.
- PTPRO低/p-MET高状态作为ESCC患者的独立预后因素.
相关概念视频
Abnormal Proliferation
4.6K
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...
4.6K
Mitogens and the Cell Cycle
6.6K
Mitogens and their receptors play a crucial role in controlling the progression of the cell cycle. However, the loss of mitogenic control over cell division leads to tumor formation. Therefore, mitogens and mitogen receptors play an important role in cancer research. For instance, the epidermal growth factor (EGF) - a type of mitogen and its transmembrane receptor (EGFR), decides the fate of the cell's proliferation. When EGF binds to EGFR, a member of the ErbB family of tyrosine kinase...
6.6K
Transducer Mechanism: Enzyme-Linked Receptors
2.5K
Enzyme-linked receptors are cell-surface receptors acting as an enzyme or associating with an enzyme intracellularly. They make excellent drug targets. Drugs can bind to the extracellular ligand-binding domain or directly affect their enzymatic domain and alter their activity.
Major types that are helpful drug targets include:
Major types that are helpful drug targets include:
2.5K
Metastasis
5.6K
Metastasis is the spread of cancer cells from the original site to distant locations in the body. Cancer cells can spread via blood vessels (hematogenous) as well as lymph vessels in the body.
Epithelial-to-Mesenchymal Transition
The epithelial-to-mesenchymal transition or EMT is a developmental process commonly observed in wound healing, embryogenesis, and cancer metastasis. EMT is induced by transforming growth factor-beta (TGF-β) or receptor tyrosine kinase (RTK) ligands, which further...
Epithelial-to-Mesenchymal Transition
The epithelial-to-mesenchymal transition or EMT is a developmental process commonly observed in wound healing, embryogenesis, and cancer metastasis. EMT is induced by transforming growth factor-beta (TGF-β) or receptor tyrosine kinase (RTK) ligands, which further...
5.6K

