异常的TERT表达:将慢性炎症与肝细胞癌联系起来
Rui Dong1, Gregoire Najjar2, Cagatay Günes2
1Department of Internal Medicine I, University Hospital Ulm, Ulm, Germany.
The Journal of pathology
|April 11, 2025
概括
端粒酶逆转录酶 (TERT) 通过促进细胞周期进展和增强NF-κB活性来驱动肝癌. 它缺乏功能性p53加速瘤的发展,突出了TERTT.
科学领域:
- 细胞生物学 细胞生物学
- 在瘤学瘤学.
- 分子生物学分子生物学
背景情况:
- 端粒酶逆转录酶 (TERT) 对于端粒维护和基因组稳定性至关重要.
- TERT在细胞增殖,生存,DNA损伤反应和新陈代谢方面也具有非正规的作用.
- 在超过80%的肝细胞癌 (HCC) 病例中,TERT的调节升高,这表明它在肝癌中的重要性.
研究的目的:
- 阐明TERT对肝细胞癌 (HCC) 发病和进展的确切机制.
- 调查TERT在炎症驱动性肝癌发生中的作用.
主要方法:
- 利用Alb-Cre;TertTg小鼠模型研究TERT在肝癌发生中的作用.
- 分析临床HCC样本以验证发现.
- 研究了TERT对NF-κB促进体活性和p21无处不在的作用的影响.
主要成果:
- TERT促进细胞周期的进展和肝癌发生.
- TERT增强NF-κB促进剂活性,并促进p21无处不在.
- 功能性p53的缺失加速了TERT转基因小鼠的肝脏瘤发展.
结论:
- TERT在炎症驱动的肝癌发生过程中发挥着关键作用.
- TERT的机制包括增强NF-κB活性和p21无处不在.
- TERT是肝癌进展的关键驱动力.
更多相关视频
00:06An Oncogenic Hepatocyte-Induced Orthotopic Mouse Model of Hepatocellular Cancer Arising in the Setting of Hepatic Inflammation and Fibrosis
Published on: September 12, 2019
8.7K
12:24A Three-Dimensional Spheroid Model to Investigate the Tumor-Stromal Interaction in Hepatocellular Carcinoma
Published on: September 30, 2021
5.0K
相关概念视频
Chronic Pancreatitis I: Introduction
56
The pancreas, an elongated and flat gland situated behind the stomach, serves a vital function in digesting food and managing blood sugar levels.
Pancreatitis is the inflammation of the pancreas, which occurs when the immune system becomes active and causes swelling, pain, and disruptions in organ function. Pancreatitis can manifest as either an acute or chronic condition.
Acute pancreatitis arises suddenly and lasts for a brief duration, while chronic pancreatitis is a long-term affliction...
Pancreatitis is the inflammation of the pancreas, which occurs when the immune system becomes active and causes swelling, pain, and disruptions in organ function. Pancreatitis can manifest as either an acute or chronic condition.
Acute pancreatitis arises suddenly and lasts for a brief duration, while chronic pancreatitis is a long-term affliction...
56
Liver Regeneration
3.2K
The liver is an important organ in vertebrates that plays an essential role in metabolism. It is also responsible for storing and redistributing nutrients such as carbohydrates, fats, and vitamins in the body. Additionally, the liver releases bile salts which are critical for digesting food and eliminating toxic metabolites from the body.
Cells of Liver
The liver comprises four major types of cells— hepatocytes, stellate, Kupffer, and sinusoidal endothelial cells. The hepatocytes are...
Cells of Liver
The liver comprises four major types of cells— hepatocytes, stellate, Kupffer, and sinusoidal endothelial cells. The hepatocytes are...
3.2K
Inflammatory Bowel Disease I: Ulcerative Colitis
98
Introduction
Inflammatory bowel disease, or IBD, encompasses a group of disorders characterized by chronic inflammation or ulceration of the gastrointestinal tract.
Risk Factors
The exact cause of IBD remains unclear, although it is believed to be due to a mix of genetic, environmental, microbial, and immune factors. Genetic factors are significant in determining susceptibility to IBD, with family history being a critical risk factor. Individuals with a first-degree relative who has IBD are at...
Inflammatory bowel disease, or IBD, encompasses a group of disorders characterized by chronic inflammation or ulceration of the gastrointestinal tract.
Risk Factors
The exact cause of IBD remains unclear, although it is believed to be due to a mix of genetic, environmental, microbial, and immune factors. Genetic factors are significant in determining susceptibility to IBD, with family history being a critical risk factor. Individuals with a first-degree relative who has IBD are at...
98
Abnormal Proliferation
4.4K
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...
4.4K
Chronic Bowel Disorders: Introduction
336
Chronic bowel diseases are a group of long-term conditions affecting the digestive tract, characterized by inflammation and damage to the gut lining. These conditions primarily include irritable bowel syndrome and inflammatory bowel disease.
Irritable Bowel Syndrome (IBS) is a common disorder affecting the gastrointestinal tract. The distinctive feature is recurrent abdominal pain associated with altered bowel movements, manifesting as constipation, diarrhea, or fluctuating between both. The...
Irritable Bowel Syndrome (IBS) is a common disorder affecting the gastrointestinal tract. The distinctive feature is recurrent abdominal pain associated with altered bowel movements, manifesting as constipation, diarrhea, or fluctuating between both. The...
336
