根据SAM综合征和棕植物角皮病的疾病严重程度对新型DSG1变异进行分类
Vanya S V J Rossel1, Jaap J A J van der Velden1, Renske Janssen1
1Department of Dermatology, GROW - Research Institute for Oncology and Reproduction, Maastricht University Medical Centre+, Maastricht, Netherlands.
Journal of dermatological science
|March 4, 2026
概括
在DSG1的遗传变异导致SAM综合征和棕叶角皮肤病. 该研究确定了新的DSG1变异,并将它们的位置与疾病严重程度相关联,为desmoglein 1功能提供了洞察力.
科学领域:
- 遗传学 是一个遗传学.
- 皮肤病学 皮肤病学
- 分子生物学分子生物学
背景情况:
- 在DSG1中双性致病变体导致严重的亚托皮炎,多种过敏和代谢衰竭综合征 (SAM).
- 在DSG1中异体变异导致棕叶角皮肤病 (PPK).
- DSG1编码了desmoglein 1,这是上皮组织中desmosomes的关键组成部分.
研究的目的:
- 调查DSG1.1中的遗传变异.
- 阐明SAM综合征和PPK的病理生理学.
- 将临床发现与受影响患者的遗传变异相关联.
主要方法:
- 基因分析以确定DSG1基因中的变异.
- 免疫光染色用于评估皮肤活检中的DSG1蛋白表达.
- 对SAM综合征和PPK患者的临床评估.
主要成果:
- 在SAM综合征和PPK患者中发现了11种新的DSG1变异.
- 变体类型包括误解,无意义,拼接位置,小删除/重复和粗略删除.
- SAM综合征的严重程度与细胞外缺少DSG1相关,表明蛋白质稳定性和功能丧失.
结论:
- 这项研究增强了对DSG1相关疾病中基因型-表型相关性的理解.
- 细胞外/膜外领域的功能丧失变体破坏细胞间粘附.
- 细胞内变异可能部分保留DSG1的粘合功能,有助于临床变异性.
更多相关视频
11:35Screening for Functional Non-coding Genetic Variants Using Electrophoretic Mobility Shift Assay EMSA and DNA-affinity Precipitation Assay DAPA
Published on: August 21, 2016
13.6K
08:33Targeting Alpha Synuclein Aggregates in Cutaneous Peripheral Nerve Fibers by Free-floating Immunofluorescence Assay
Published on: June 25, 2019
8.7K
相关概念视频
Peripheral Arterial Disease II: Clinical Manifestations and Diagnostic Evaluation
546
Clinical manifestationsPeripheral Arterial Disease (PAD) manifests through a range of symptoms, from the characteristic intermittent claudication to atypical presentations and severe complications in advanced stages. Intermittent claudication, a hallmark symptom of PAD, presents as exercise-induced muscle pain that typically resolves within minutes of rest. This pain is reproducible and stems from inadequate blood flow, leading to the accumulation of lactic acid produced during anaerobic...
546
Pleiotropy
43.7K
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,...
43.7K
Desmosomes
8.4K
The term desmosome derives from the Greek words "desmo" and "soma" meaning "adhesion bodies." This structure was first observed during the late 1800s and described as small, dense nodules in the epidermis. Desmosomes are button-like structures that help form an interlinked network of intermediate filaments across the cells. These junctions are essential to hold cells together under mechanical stress and to maintain tissue integrity. Desmosomes are multi-protein...
8.4K
