在HOIP中出现的新型化合物异构基因突变导致自身炎症和免疫缺陷
Li Wang1,2, Jing Xiao3, Rui Gan1
1Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Child Rare Diseases in Infection and Immunity, Chongqing, China.
Journal of clinical immunology
|September 30, 2025
概括
在HOIP基因中的新突变通过破坏NF-κB激活和改变免疫细胞种群,导致严重的自身炎症和免疫缺陷. 这扩大了已知的HOIP相关疾病的范围.
科学领域:
- 免疫学 免疫学 免疫学
- 遗传学 遗传学 是一个
- 分子生物学分子生物学
背景情况:
- 编码线性无化链组合复合体 (LUBAC) 的关键组成部分HOIP基因的突变与自身炎症和免疫缺陷有关.
- HOIP突变影响NF-κB通路的激活.
- 此前,只有三个HOIP突变病例被报告.
研究的目的:
- 确定儿童患者早期自发炎症和免疫缺陷的遗传原因.
- 描述与新型HOIP突变相关的免疫学表型.
主要方法:
- 一名中国患者的临床和免疫学评估,该患者患有复合异性HOIP突变.
- 基因测序用于识别突变.
- 西方斑点用于评估蛋白质水平.
- 流细胞测量用于免疫类型和NF-κB酸化分析.
- 通过RT-qPCR来评估干扰素的特征.
主要成果:
- 在HOIP中发现了一种新型化合物异构基突变,导致HOIP和LUBAC蛋白表达减少.
- 观察到T和B细胞种群的显著变化,包括CD8+T细胞,Tfh细胞和记忆B细胞减少,Th17细胞增加.
- 发现NF-κB酸化受损和干扰素刺激基因 (ISG) 表达升高.
结论:
- HOIP突变会导致各种免疫异常,包括NF-κB激活受损和I型干扰素通路激活.
- 这些发现扩大了对HOIP相关疾病的理解,并突出了突变的多样性.
- 这项研究扩大了与HOIP相关的自身炎症和免疫缺陷疾病的临床范围.
更多相关视频
相关概念视频
Pleiotropy
43.2K
Pleiotropy is the phenomenon in which a single gene impacts multiple, seemingly unrelated phenotypic traits. For example, defects in the SOX10 gene cause Waardenburg Syndrome Type 4, or WS4, which can cause defects in pigmentation, hearing impairments, and an absence of intestinal contractions necessary for elimination. This diversity of phenotypes results from the expression pattern of SOX10 in early embryonic and fetal development. SOX10 is found in neural crest cells that form melanocytes,...
43.2K
Immunodeficiency Diseases
2.0K
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...
2.0K
Autoimmune Disorders
1.5K
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...
1.5K
Hedgehog Signaling Pathway
9.8K
The Hedgehog gene (Hh) was first discovered due to its control of the growth of disorganized, hair-like bristles phenotype in Drosophila, much like hedgehog spines. Hh plays a crucial role in the development of organs and the maintenance of homeostasis in both invertebrates and vertebrates. However, while Drosophila has only one Hh protein, mammals have multiple functional Hedgehog proteins - Sonic (Shh), Desert (Dhh), and Indian Hedgehog (Ihh). All of these homologous proteins have adapted to...
9.8K
EPS and iPS Cells in Disease Research
3.4K
Embryonic and induced pluripotent stem cells are excellent models for disease research because of their ability to self-renew and differentiate into most cell types. Somatic cells from a patient are isolated and reprogrammed into induced pluripotent stem cells or iPSCs. These iPSCs are later differentiated into the desired cell type, which mirrors the diseased cell of the patient. In this way, disease models have been created for investigating diseases such as Down syndrome, type I diabetes,...
3.4K
Antigens Involved in Adaptive Immunity
1.3K
An antigen is any substance the immune system identifies as foreign and potentially harmful to the body, prompting an immune response. Antigens have two functional properties: immunogenicity and reactivity. Immunogenicity is the ability of an antigen to stimulate a specific immune response. At the same time, reactivity describes the antigen's ability to react with the cells and antibodies produced in response to it.
Complete Antigens
Complete antigens possess both immunogenicity and...
Complete Antigens
Complete antigens possess both immunogenicity and...
1.3K


