传统的1型树突细胞对于原发性胆道胆道炎的发展至关重要
Debby Reuveni1,2,3, Siwar Assi1,2, Yael Gore1,2
1The Research Center for Digestive Tract and Liver Diseases, Department of Gastroenterology, Tel Aviv Sourasky Medical Center, Tel Aviv, Israel.
概括
这项研究揭示了cDC1细胞对原发性胆道胆炎 (PBC) 病原发生有显著的贡献. 在小鼠中消除cDC1细胞减少了肝炎和纤维化,这表明了PBC的新治疗点.
科学领域:
- 免疫学 免疫学 免疫学
- 肝病学 肝病学是一种肝病学.
- 自免疫性疾病 自免疫性疾病
背景情况:
- 初级胆道胆炎 (PBC) 是一种渐进的自身免疫性肝病,其特征是胆.
- 树突细胞 (DCs),特别是cDC1子集,由于其抗原呈现功能和在受损胆道附近的存在,与PBC病原发生有关.
研究的目的:
- 调查cDC1子集在原发性胆道胆道炎的发展和进展中的特定作用.
主要方法:
- 使用一种可诱导的PBC和Batf3-/-小鼠cDC1.1缺乏的小鼠小鼠模型.
- 通过流动细胞计量分析肝脏组织病理学,免疫细胞种群,并对来自PBC患者和健康对照者的人类cDC1细胞进行转录组分析.
主要成果:
- 与野生类型小鼠相比,缺乏cDC1 (Batf3-/-) 的小鼠表现出减少的周门炎症和门纤维化.
- 缺少cDC1的小鼠在肝脏中显示CD8/CD4T细胞比率下降,这表明T细胞扩张受损.
- 对人类cDC1细胞的转录组分析显示,在PBC患者中,参与抗原呈现,TNF/IFN信号传递和线粒体功能障碍的基因表达增加.
结论:
- 该cDC1子集在原发性胆道胆道炎的发病过程中发挥着重要作用.
- 这些发现表明cDC1是PBC中新的,基于免疫的,细胞特异的治疗策略的潜在目标.
相关概念视频
Chronic Pancreatitis I: Introduction
87
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...
87
T Cell Types and Functions
1.0K
When T cells with CD4 markers are activated, they give rise to two types of effector cells: helper T cells and regulatory T cells. Meanwhile, T cells with CD8 markers differentiate into effector cytotoxic T cells. The differentiation of CD4 T cells into helper T cell subsets, such as Th1, Th2, and Th17 cells, is dependent on the antigen type, antigen-presenting cell, and regulatory cytokines.
Th1 cells stimulate dendritic cells to express necessary co-stimulatory molecules on their surfaces for...
Th1 cells stimulate dendritic cells to express necessary co-stimulatory molecules on their surfaces for...
1.0K
B Cell Activation and Differentiation
1.7K
The adaptive immune response, a sophisticated defense mechanism, relies on the activation and differentiation of B lymphocytes, or B cells. These processes enable our bodies to mount a tailored response against specific pathogens such as bacteria, free virus particles, toxins, and parasites.
When naive B cells encounter a specific antigen that can bind to the B cell receptor (BCR) on their surface, they undergo sensitization to respond to the antigen's presence. Sensitization begins with...
When naive B cells encounter a specific antigen that can bind to the B cell receptor (BCR) on their surface, they undergo sensitization to respond to the antigen's presence. Sensitization begins with...
1.7K
Chronic Bowel Disorders: Introduction
446
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...
446
Antigen Presenting Cells
1.8K
The immune system is a complex network of cells and molecules that protects the body from foreign invaders. T cells, a type of white blood cell, play a crucial role in this process. They recognize and attack foreign substances, such as pathogens, that enter the body.
T cells require the help of antigen-presenting cells (APCs), which process foreign antigens into smaller fragments that can be recognized by T cells. These APCs are highly specialized cells that efficiently internalize antigens...
T cells require the help of antigen-presenting cells (APCs), which process foreign antigens into smaller fragments that can be recognized by T cells. These APCs are highly specialized cells that efficiently internalize antigens...
1.8K


