多器官参与和循环IgG1预测IgG4相关疾病中的低补充血
Guy Katz1,2, Cory Perugino3,2,4, Zachary S Wallace3,2
1Massachusetts General Hospital Division of Rheumatology Allergy and Immunology, Boston, Massachusetts, USA gkatz@mgh.harvard.edu.
Annals of the rheumatic diseases
|July 30, 2024
概括
在IgG4相关疾病 (IgG4-RD) 中常见的低补充血与疾病程度有关,特别是淋巴结和肺部的参与. 不是IgG4,而是IgG1水平与这种补充缺乏相关,这表明补充激活在IgG4-RD中.
科学领域:
- 免疫学 免疫学 免疫学
- 类风湿病学 类风湿病学
- 病理生理学 病理生理学
背景情况:
- 在被诊断患有IgG4相关疾病 (IgG4-RD) 的患者中,经常观察到缺补血症.
- 了解IgG4-RD中低补充血的临床特征和潜在机制对于疾病管理至关重要.
研究的目的:
- 为了确定特定的IgG4相关疾病 (IgG4-RD) 与低补充血症相关的特征.
- 在IgG4-RD的背景下探索补充激活的机制.
主要方法:
- 进行了一项单一中心的横截面研究,涉及279名符合IgG4-RD分类标准的患者.
- 使用未调整的和多变量调整的逻辑回归分析来确定与低补充血症相关的因素.
主要成果:
- 低补充血症发生在32%的患者身上.
- 最初,多个器官,淋巴结,肺,胰腺,肝脏和脏的参与与低补充血的关联.
- 在调整后,淋巴结和肺部参与仍然显著相关,而脏参与减弱. 纤维化表现和眼腺参与显示了相反的关联.
- 低补充血与所有IgG子类和IgE的较高度相关. 重要的是,只有IgG1,而不是IgG4,在调整后独立与低补充血的相关性.
结论:
- 在IgG4-RD中,低补充血与疾病的整体程度有关,并不仅限于脏参与.
- 这项研究强调了IgG1水平和IgG4-RD中IgG4-RD的低补充血的显著独立相关性,挑战了IgG4.4的作用.
- 这些发现表明,补充激活在IgG4相关疾病的病理生理学中起作用.
相关概念视频
01:15Transcytosis of IgG
2.7K
Transcytosis is the process in which molecules are internalized by endocytosis, transported across the cell, and released through exocytosis from the opposite end of the cell. Molecules such as insulin, immunoglobulins, and certain nutrients are transferred through the recycling endosomes by recycling and transcytosis.
IgG molecules from a mother undergo transcytosis starting around 13 weeks of gestation. The amount of IgG transferred and entering the fetal blood circulation increases with...
IgG molecules from a mother undergo transcytosis starting around 13 weeks of gestation. The amount of IgG transferred and entering the fetal blood circulation increases with...
2.7K
01:36Humoral Immune Responses
72.4K
Overview
72.4K
01:30Hypersensitivities
569
Hypersensitivity, also known as a hypersensitivity reaction or allergic reaction, is a condition where the body's immune system reacts abnormally to a foreign substance. Such substances, that cause hypersensitivity are referred to as an allergen, could be something typically harmless to most people, like pollen or certain foods.
Types of Hypersensitivities
Hypersensitivity reactions are categorized into four types: Type 1, Type 2, Type 3, and Type 4. Each type has a distinct mechanism...
Types of Hypersensitivities
Hypersensitivity reactions are categorized into four types: Type 1, Type 2, Type 3, and Type 4. Each type has a distinct mechanism...
569
01:17Chronic Bowel Disorders: Introduction
436
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...
436
01:27Inflammatory Bowel Disease I: Ulcerative Colitis
160
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...
160
01:30Inflammatory Bowel Disease II: Crohn's Disease
206
Introduction
Inflammatory bowel disease, commonly known as IBD, refers to a collection of disorders that lead to persistent inflammation of the gastrointestinal tract. The two types of IBD are ulcerative colitis, which impacts the colon, and Crohn's disease, which can involve any part of the gastrointestinal segment.
Crohn's disease
Crohn's disease is a chronic, systemic inflammatory bowel disease (IBD) that predominantly affects the gastrointestinal tract. It is marked by...
Inflammatory bowel disease, commonly known as IBD, refers to a collection of disorders that lead to persistent inflammation of the gastrointestinal tract. The two types of IBD are ulcerative colitis, which impacts the colon, and Crohn's disease, which can involve any part of the gastrointestinal segment.
Crohn's disease
Crohn's disease is a chronic, systemic inflammatory bowel disease (IBD) that predominantly affects the gastrointestinal tract. It is marked by...
206