在胰腺细胞中,deubiquitinase JOSD2 通过去除 PCNA 上的 K63 结合的多素链来促进急性胰腺炎.
在PubMed上查看摘要
概括
此摘要是机器生成的。含有约瑟芬域的二基因酶蛋白2 (JOSD2) 通过破坏细胞中的DNA来促进急性胰腺炎 (AP). 抑制JOSD2可能为AP治疗提供新的治疗策略.
科学领域
- 分子生物学
- 胃肠病学
- 生物化学
背景情况
- 急性胰腺炎是一种具有高死亡率的严重炎症性疾病.
- 细胞死亡和炎症是AP进展的关键驱动因素.
- 调节蛋白质稳定性和活性,可能影响AP.
研究的目的
- 调查约瑟芬域含有蛋白2 (JOSD2) 在AP病变中的作用.
- 探索JOSD2在调节细胞损伤和炎症中的机制.
主要方法
- 在Cerulein诱导的AP小鼠模型中分析JOSD2表达.
- 在JOSD2淘汰和野生类型小鼠中评估AP的严重程度.
- 在实验室中使用初级细胞和JOSD2基质的鉴定.
主要成果
- 在AP期间,JOSD2的表达上调;JOSD2缺乏保护AP.
- 在K164处,JOSD2二化增殖细胞核抗原 (PCNA),影响DNA损伤.
- 缺少JOSD2会增强细胞对损伤和炎症的抵抗力.
结论
- 通过调解PCNA依赖的DNA损伤反应,JOSD2使AP恶化.
- 针对JOSD2可能是急性胰腺炎的治疗途径.
相关概念视频
Pancreatitis is inflammation of the pancreas, an organ located behind the stomach. It can be either acute or chronic.
Acute pancreatitis is characterized by rapid inflammation of the pancreas, often caused by factors like gallstone blockage or excessive alcohol consumption. Chronic pancreatitis, on the other hand, is a slow, progressive inflammation that may result from long-term alcohol abuse, obstructions in the pancreatic duct, or genetic factors.
The causes of acute pancreatitis include:
...
Eukaryotic cells can degrade proteins through several pathways. One of the most important among these is the ubiquitin-proteasome pathway. It helps the cell eliminate the misfolded, damaged, or unwarranted cytoplasmic proteins in a highly specific manner.
In this pathway, the target proteins are first tagged with small proteins called ubiquitin. This involves participation of a series of enzymes including— E1 (ubiquitin-activating enzyme), E2 (ubiquitin-conjugating enzyme), and E3...
Acute pancreatitis presents a complex medical emergency characterized by rapid onset inflammation of the pancreas, demanding timely diagnosis and management to prevent complications. The condition primarily manifests through severe upper abdominal pain that often radiates to the back. This pain intensifies following the consumption of fatty foods. Accompanying symptoms such as nausea, vomiting, abdominal distention, fever, dyspnea, cyanosis, and jaundice can vary in intensity but significantly...
It is vital to regulate the activity of enzymatic as well as non-enzymatic proteins inside the cell. This can be achieved either through creating a balance between their rate of synthesis and degradation or regulating the intrinsic activity of the protein. Both these regulation mechanisms play an essential role in the normal functioning of cells.
Protein degradation plays two important roles in the cells. It helps to protect cells from misfolded or damaged proteins before they lead to a...
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...
The management of chronic pancreatitis is multifaceted, involving a comprehensive approach that includes thorough assessment, diagnostic testing, and a variety of management strategies.
Assessment:
Detailed History: Understanding the patient's symptoms is critical. It includes inquiring about abdominal pain, weight loss, and digestive issues, which are common in chronic pancreatitis.
Physical Examination: This might reveal abdominal tenderness, jaundice, and signs of malnutrition,...

