结合生殖系和人体FADD突变导致自身免疫淋巴增殖综合征
Olivier Pellé1, Solange Moreno1, Myriam Ricarda Lorenz2
1University of Paris Cité, Paris, France; Laboratory of Immunogenetics of Pediatric Autoimmune Diseases, Imagine Institute, INSERM UMR 1163, Paris, France; Imagine Institute, INSERM UMR 1163, Paris, France.
The Journal of allergy and clinical immunology
|October 4, 2023
概括
新的研究发现了一种新的自身免疫淋巴增殖综合征 (ALPS) 的遗传原因. 同胞性FAS相关死亡域 (FADD) 突变的T细胞,由遗传和获得的遗传事件,导致ALPS的发展.
科学领域:
- 免疫学 免疫学 免疫学
- 遗传学 是一个遗传学.
- 分子生物学分子生物学
背景情况:
- 自免疫淋巴增殖综合征 (ALPS) 是一种非恶性淋巴增殖疾病.
- 由于有缺陷的FAS信号传递,ALPS通常与自身免疫性细胞衰减有关.
- 带有体征事件的生殖线单基FAS突变导致ALPS-FAS.
研究的目的:
- 调查FAS相关死亡域 (FADD) 基因中的体征事件是否有助于ALPS发病.
- 分析了4名与ALPS无关的患者,这些患者具有从健康父母遗传的生殖系单单基因FADD突变.
主要方法:
- 对FADD基因进行测序.
- 基于数组的比较基因组杂交 (aCGH).
- 从排序的CD4+或双阴性 (DN) T细胞中分析DNA.
主要成果:
- 在所有4名患者的DN T细胞中发现了同卵性FADD突变.
- 这些突变是由单亲异构造成的.
- 在FADD缺乏症模仿ALPS-FAS,而在双基突变中没有复杂的症状.
结论:
- 生殖系和体质FADD基因事件代表了ALPS的新遗传原因.
- 这一发现扩大了对ALPS病原体的理解.
- 确定FADD是ALPS发展中的关键基因.
相关概念视频
Autoimmune Disorders
471
Autoimmune diseases are a group of disorders in which the body's immune system mistakenly attacks its own cells, tissues, and organs. This results from an overactive immune response against substances and tissues normally present in the body. Let's delve into the concept and mechanism of autoimmune diseases from an immune system point of view, explore different causes and examples of such diseases, and discuss potential solutions.
Concept and Mechanism of Autoimmune Diseases
The immune...
Concept and Mechanism of Autoimmune Diseases
The immune...
471
Mutations
83.4K
Overview
83.4K
Cancers Originate from Somatic Mutations in a Single Cell
12.0K
Cancer arises from mutations in the critical genes that allow healthy cells to escape cell cycle regulation and acquire the ability to proliferate indefinitely. Though originating from a single mutation event in one of the originator cells, cancer progresses when the mutant cell lines continue to gain more and more mutations, and finally, become malignant. For example, chronic myelogenous leukemia (CML) develops initially as a non-lethal increase in white blood cells, which progressively...
12.0K
Skin Diseases and Disorders
3.9K
Skin is the first line of defense and encounters a variety of microbes. Some pathogenic strains are often the cause of a broad range of infections of the skin and other body systems. These conditions can affect people of all ages and may have different causes, including genetic factors, infections, autoimmune reactions, environmental factors, and lifestyle choices.
Gram-positive Staphylococcus spp. and Streptococcus spp. are responsible for many of the most common skin infections. However, many...
Gram-positive Staphylococcus spp. and Streptococcus spp. are responsible for many of the most common skin infections. However, many...
3.9K
Immunodeficiency Diseases
963
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...
963
Abnormal Proliferation
4.6K
Under normal conditions, most adult cells remain in a non-proliferative state unless stimulated by internal or external factors to replace lost cells. Abnormal cell proliferation is a condition in which the cell's growth exceeds and is uncoordinated with normal cells. In such situations, cell division persists in the same excessive manner even after cessation of the stimuli, leading to persistent tumors. The tumor arises from the damaged cells that replicate to pass the damage to the...
4.6K


