相关实验视频
Updated: Jun 26, 2025

10:22
Humanized Mediator Release Assay as a Read-Out for Allergen Potency
Published on: June 29, 2021
3.5K
由于TAZ缺乏症会增加组胺释放因子,从而加剧牛皮病原体的发生
Jiseo Song1, Hyo Kyeong Kim1, Hyunsoo Cho1
1College of Pharmacy and Graduate School of Pharmaceutical Sciences, Ewha Womans University, Seoul, 03760, Korea.
Cell & bioscience
|May 11, 2024
概括
具有PDZ结合动机 (TAZ) 的转录协活性剂调节了组胺释放因子 (HRF) 蛋白质的稳定性. 由于TAZ缺乏症会增加HRF,从而加剧牛皮,突出TAZ.
科学领域:
- 免疫学 免疫学 免疫学
- 皮肤病学 皮肤病学
- 分子生物学分子生物学
背景情况:
- 具有PDZ结合动机 (TAZ) 的转录协活性剂调节了细胞的重要过程,如增殖和分化.
- 在免疫系统中TAZ的作用及其与炎症性皮肤疾病,如牛皮的联系,仍然在很大程度上未被探索.
研究的目的:
- 研究TAZ在免疫系统中的功能.
- 为了阐明TAZ在牛皮病原体中的作用.
主要方法:
- 研究了瘤细胞中的TAZ表达及其与组胺释放因子 (HRF) 的同局部.
- 分析了TAZ缺乏对乳腺细胞成熟和HRF表达/分泌的影响.
- 使用一只伊米基莫德 (IMQ) 诱导的牛皮小鼠模型来评估TAZ淘汰赛 (KO) 与野生型 (WT) 小鼠的严重程度.
主要成果:
- 在巨细胞中发现TAZ,特别是在溶酶体中,并与HRF共同定位.
- TAZ缺乏导致巨细胞成熟的增加和HRF表达和分泌的增加,这归因于蛋白质稳定,而不是转录的增加.
- 在TAZ KO小鼠中,IMQ诱导的牛皮更严重,在IMQ治疗后观察到HRF表达和分泌的进一步增加.
结论:
- 通过调节HRF蛋白稳定性,TAZ在预防牛皮方面发挥着至关重要的作用.
- 在TAZ缺乏条件下HRF的稳定加速了牛皮病原体的产生.
相关概念视频
T Cell Types and Functions
1.0K
When T cells with CD4 markers are activated, they give rise to two types of effector cells: helper T cells and regulatory T cells. Meanwhile, T cells with CD8 markers differentiate into effector cytotoxic T cells. The differentiation of CD4 T cells into helper T cell subsets, such as Th1, Th2, and Th17 cells, is dependent on the antigen type, antigen-presenting cell, and regulatory cytokines.
Th1 cells stimulate dendritic cells to express necessary co-stimulatory molecules on their surfaces for...
Th1 cells stimulate dendritic cells to express necessary co-stimulatory molecules on their surfaces for...
1.0K
Asthma: Pathogenesis and Management
389
Asthma is a chronic pulmonary condition involving inflammation of the airways, hyper-reactivity, and reversible obstruction of the airways. This condition can significantly impact a person's quality of life, making breathing difficult and leading to distressing symptoms.
Asthma is classified as allergic and non-allergic. Allergens such as dust mites, pollen, and pet dander trigger allergic asthma, while factors like cold air, intense emotions, or exercise can induce non-allergic asthma.
Asthma is classified as allergic and non-allergic. Allergens such as dust mites, pollen, and pet dander trigger allergic asthma, while factors like cold air, intense emotions, or exercise can induce non-allergic asthma.
389
Pathophysiology of Peptic Ulcer Disease: Injurious Factors
572
Peptic ulcers are sores on the stomach's inner lining and the upper small intestine, which are the result of disruptions in the mucosal layer that houses parietal cells which produce gastric acid, and chief cells which secrete pepsinogen.
In the antrum region, G cells secrete the gastrin hormone that binds to gastrin-cholecystokinin-B (CCK2) receptors on parietal and enterochromaffin-like (ECL) cells in the fundic glands. Simultaneously, the vagus nerve releases acetylcholine, which binds...
In the antrum region, G cells secrete the gastrin hormone that binds to gastrin-cholecystokinin-B (CCK2) receptors on parietal and enterochromaffin-like (ECL) cells in the fundic glands. Simultaneously, the vagus nerve releases acetylcholine, which binds...
572
Asthma-II: Pathophysiology and Classification
2.6K
Asthma is a prevalent chronic respiratory condition marked by inflammation and hyperresponsiveness of the airways. Its pathophysiology involves complex interactions among inflammatory pathways, immune responses, and neural mechanisms.
Additionally, environmental and genetic factors play crucial roles in determining an individual's susceptibility to asthma and the severity of their condition.
Critical processes in asthma pathophysiology include:
Additionally, environmental and genetic factors play crucial roles in determining an individual's susceptibility to asthma and the severity of their condition.
Critical processes in asthma pathophysiology include:
2.6K
Pathophysiology of Peptic Ulcer Disease: Mucosal Defense Factors
382
Peptic ulcer disease, commonly called PUD, represents a multifaceted condition characterized by disruptions in the lining of the gastrointestinal (GI) tract. Central to the protection of the gastrointestinal lining is the mucosal-bicarbonate barrier. This physiological defense mechanism is a formidable shield against the corrosive effects of gastric acid and pepsin secretion in the stomach. Its role is pivotal in maintaining the structural integrity of the stomach's inner lining.
382
Allergic Reactions
27.3K
Overview
27.3K

