患有COVID-19的儿童多系统炎症综合征的免疫学
Camila Rosat Consiglio1, Nicola Cotugno2, Fabian Sardh3
1Science for Life Laboratory, Department of Women's and Children Health, Karolinska Institutet, Stockholm 17165, Sweden.
Cell
|September 23, 2020
概括
COVID-19 后儿童多系统炎症综合征 (MIS-C) 与川崎病具有共同的特征,但具有不同的免疫特征. 自体抗体可能在MIS-C的发病过程中起作用,与严重的急性COVID-19炎症不同.
科学领域:
- 儿童免疫学
- 感染性疾病
- 自免疫性疾病
背景情况:
- 严重急性呼吸道综合征冠状病毒2 (SARS-CoV-2) 感染在儿童中通常是轻微的.
- 儿童多系统炎症综合征 (MIS-C) 是一种罕见但严重的COVID-19并发症.
- 发烧,器官功能障碍和炎症,可能与与川崎病类似的自身免疫过程有关.
研究的目的:
- 将MIS-C的免疫反应与川崎病和SARS-CoV-2感染进行比较.
- 研究免疫细胞,细胞因子和自身抗体在MIS-C病变发生过程中的作用.
- 确定MIS-C的潜在生物标志物及其与其他炎症状况的区别.
主要方法:
- 血液免疫细胞,细胞因子和自身抗体的系统级分析.
- 在四组中进行比较:健康的儿童,患有川崎病的儿童,感染SARS-CoV-2的儿童和患有MIS-C的儿童.
- 详细描述T细胞子集和特定的炎症标志物,如IL-17A.
主要成果:
- 在MIS-C中,炎症反应与严重急性COVID-19中的细胞因子风暴不同.
- MIS-C与川崎病有一些炎症特征,但在T细胞子集和动脉损伤生物标志物上有所不同.
- 自动抗体分析确定了几种可能参与MIS-C病变的候选物.
结论:
- MIS-C 具有独特的炎症特征,使其与川崎病和严重的COVID-19 有所区别.
- 这些发现表明MIS-C具有复杂的自身免疫病因,特定的自身抗体有助于其发展.
- 对这些自身抗体的进一步研究可能会改善MIS-C的诊断和向治疗.
更多相关视频
08:44Separation of Immune Cell Subpopulations in Peripheral Blood Samples from Children with Infectious Mononucleosis
Published on: September 7, 2022
2.7K
09:37Detection of Polyfunctional T Cells in Children Vaccinated with Japanese Encephalitis Vaccine via the Flow Cytometry Technique
Published on: September 23, 2022
2.1K
相关概念视频
01:25Immunodeficiency Diseases
1.8K
Immunodeficiency disorders are conditions in which the immune system's ability to fight infectious disease and cancer is compromised or entirely absent. The immune system comprises a complex network of cells, tissues, and organs that work together to protect the body from potentially harmful invaders. When this system is deficient or not functioning properly, it leaves the body susceptible to infections, diseases, or other complications.
There are three main causes of immunodeficiency...
There are three main causes of immunodeficiency...
1.8K
01:29Immune Response Against Viral Pathogens
1.5K
The immune system's response to viral infections is a complex and coordinated process involving natural killer (NK) cells, T cell-mediated responses, and antibody-mediated responses.
NK Cells
NK cells are a crucial part of our innate immune system, acting as the first line of defense against viral infections. These cells can recognize and kill infected cells without prior exposure to the virus, effectively slowing down the spread of infection. Additionally, NK cells produce proinflammatory...
NK Cells
NK cells are a crucial part of our innate immune system, acting as the first line of defense against viral infections. These cells can recognize and kill infected cells without prior exposure to the virus, effectively slowing down the spread of infection. Additionally, NK cells produce proinflammatory...
1.5K
01:27Myocarditis II: Clinical Features and Diagnostic Tests
144
Myocarditis is an inflammation of the heart muscle. The symptoms vary widely, encompassing asymptomatic presentations to severe, acute manifestations.Clinical PresentationAsymptomatic cases: In some instances, myocarditis may be asymptomatic, with the infection resolving without intervention. These cases often go undetected unless discovered incidentally through diagnostic imaging or tests conducted for other reasons.General Early Symptoms: Early symptoms of myocarditis are non-specific and can...
144
01:22Development of Immunocompetence
610
The initiation of cell-mediated immunity can be observed as early as the third month of fetal growth, with active antibody-mediated immunity following approximately one month later.
The initial cells that migrate from the fetal thymus settle within the skin and epithelial tissues lining the mouth, digestive tract, and in females, the uterus and vagina. These cells, including skin-based dendritic cells, serve as antigen-presenting cells, playing a key role in T cell activation.
Subsequent T...
The initial cells that migrate from the fetal thymus settle within the skin and epithelial tissues lining the mouth, digestive tract, and in females, the uterus and vagina. These cells, including skin-based dendritic cells, serve as antigen-presenting cells, playing a key role in T cell activation.
Subsequent T...
610
01:21Myocarditis I: Introduction
224
Myocarditis is inflammation of the myocardium, which is the muscular layer of the heart.EtiologyMyocarditis has a diverse etiology, including a wide range of infectious and non-infectious causes:Infectious CausesViral: Common viruses include Coxsackie A and B, adenovirus, parvovirus B19, enteroviruses, and influenza A.Bacterial: Examples include infections caused by Streptococcus, Staphylococcus, and Mycoplasma species.Rickettsial: Infections like Rocky Mountain spotted fever can result in...
224