格里森囊矩阵的结构和功能在肝硬化患者中发生变化,不论病因如何
Jessica Llewellyn1,2, Caterina Fede3, Abigail E Loneker2,4
1Department of Gastroenterology and Hepatology, School of Medicine, University of Pennsylvania, Philadelphia, PA, USA.
JHEP reports : innovation in hepatology
|August 3, 2023
概括
疾病中的肝囊变化包括增加厚度和细胞数量,但肝硬化时机械抵抗性降低. 这些发现凸显了囊作为肝脏病理学的活跃部位.
科学领域:
- 肝病学 肝病学是一种肝病学.
- 连接组织生物学 连接组织生物学
- 生物机械工程 生物机械工程
背景情况:
- 格里森囊,肝脏的结合组织外,在维持肝脏结构方面发挥着作用.
- 格里森囊在肝脏疾病中的病理生理学仍然不太清楚.
- 了解囊变化对于理解肝病进展至关重要.
研究的目的:
- 描述疾病期间肝囊中的矩阵,细胞和机械性质变化.
- 为了将这些变化与肝病严重程度和病因相关联.
主要方法:
- 从对照和患病的人类肝脏 (肥胖症,纤维化,肝硬化) 取肝囊样本进行分析.
- 使用染色和第二子生成成像评估矩阵蛋白和细胞标记物.
- 机械拉力测试,以评估囊对负载的抵抗力.
主要成果:
- 与对照人群相比,肝硬化肝脏显著增加了囊厚度和细胞性.
- 关键矩阵组件 (原体,氨酸,维西卡,弹性质) 在肝硬化中发生变化.
- 尽管结构部件增加了,但肝硬化囊对机械负荷的抵抗性降低了.
结论:
- 肝囊是疾病的活跃部位,其组成和机械特性发生了显著的变化.
- 肝硬化囊的变化表明组织不那么硬,伸展性增加.
- 这些发现为患病的肝囊的生物机械行为提供了新的见解.
更多相关视频
06:463D Imaging of the Liver Extracellular Matrix in a Mouse Model of Non-Alcoholic Steatohepatitis
Published on: February 25, 2022
1.9K
10:12Isolation and 3D Collagen Sandwich Culture of Primary Mouse Hepatocytes to Study the Role of Cytoskeleton in Bile Canalicular Formation In Vitro
Published on: December 20, 2019
11.6K
相关概念视频
Gastritis-II: Pathophysiology
376
Gastritis is marked by disruption of the mucosal barrier that usually protects the stomach tissue from digestive juices and manifests in acute and chronic forms.
In acute gastritis, the gastric mucosa becomes swollen and red and undergoes superficial erosion. Superficial ulceration may lead to bleeding.
In chronic gastritis, persistent or repeated insults lead to chronic inflammatory changes and, eventually, thinning or atrophy of the gastric tissue.
Gastritis can stem from various causes, each...
In acute gastritis, the gastric mucosa becomes swollen and red and undergoes superficial erosion. Superficial ulceration may lead to bleeding.
In chronic gastritis, persistent or repeated insults lead to chronic inflammatory changes and, eventually, thinning or atrophy of the gastric tissue.
Gastritis can stem from various causes, each...
376
Diseases of the Liver and Gallbladder
634
Liver and gallbladder diseases are a significant health concern, with prominent conditions including cirrhosis, hepatitis, non-alcoholic fatty liver disease (NAFLD), and gallstones. Jaundice is a common manifestation of liver and biliary disease.
Cirrhosis is characterized by the scarring of hepatic lobules in the liver, which are replaced by fibrous tissue, affecting the liver's normal functioning. NAFLD, on the other hand, is caused by an excessive build-up of fat in the liver, not...
Cirrhosis is characterized by the scarring of hepatic lobules in the liver, which are replaced by fibrous tissue, affecting the liver's normal functioning. NAFLD, on the other hand, is caused by an excessive build-up of fat in the liver, not...
634
Chronic Pancreatitis I: Introduction
113
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...
113
Liver Histology
891
The microscopic anatomy of the liver is a complex and intricate system that comprises numerous structural units known as liver lobules, each of which is comparable in size to a sesame seed. These hexagonal structures consist of plates of liver cells or hepatocytes, which are characterized by their versatility and abundance of cellular apparatus like rough and smooth ER, Golgi apparatus, peroxisomes, and mitochondria.
Hepatocytes perform a variety of essential functions. They secrete...
Hepatocytes perform a variety of essential functions. They secrete...
891
Liver Regeneration
3.3K
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...
3.3K
Type IV Collagen of Basal Lamina
2.3K
Type IV collagen is a 400 nm long, network-forming collagen that acts as a barrier between the epithelial and endothelial cells. Type IV collagen forms the backbone of the basement membrane by scaffolding with laminin, entactin, proteoglycans, and fibronectin. Apart from rendering structural support to the basement membrane, it also helps entail signaling potentials necessary for both pathological and physiological functions.
A type IV collagen molecule has six alpha chains which can...
A type IV collagen molecule has six alpha chains which can...
2.3K
