2型炎症加速CD4+ T细胞衰老在喘中
Huan Liu1,2, Zemin Li1,2, Yongchang Sun1,2
1Department of Respiratory and Critical Care Medicine, Peking University Third Hospital, Beijing 100083, China.
Journal of Zhejiang University. Science. B
|February 9, 2026
概括
喘患者显示分化4-阳性 (CD4+) 衰老T细胞的集群增加,与呼吸道炎症有关. 针对2型炎症可以减少T细胞衰老和喘严重程度.
科学领域:
- 免疫学 免疫学 免疫学
- 呼吸系统医学 呼吸系统医学
- 细胞生物学 细胞生物学
背景情况:
- 喘是一种慢性炎症性呼吸道疾病.
- T细胞衰老与免疫功能障碍和炎症有关.
- 目前,T细胞衰老在喘中的作用尚未被探索.
研究的目的:
- 为了研究喘和T细胞衰老之间的关系.
- 确定T细胞衰老对喘病理学的影响.
- 探索针对喘T细胞衰老的潜在治疗策略.
主要方法:
- 在喘患者和健康对照中量化老化的T细胞 (Tsens).
- 使用了一种室内灰尘虫 (HDM) 诱导的喘小鼠模型.
- 进行了治疗干预,包括IL-4抗体和德克萨米他.
- 在小鼠模型中进行了CD4+ Tsens的采用转移.
主要成果:
- 与对照组相比,喘患者的CD4+ Tsen百分比显著更高.
- CD4+ Tsen水平与喘严重程度标志物 (FeNO,乙素,Th2细胞) 有积极的相关性.
- HDM诱导的喘模型显示肺部CD4+ Tsen升高;IL-4中和降低了CD4+ Tsen和p38 MAPK激活.
- 在接受了HDM治疗的小鼠中,CD4+ Tsens的收养转移加剧了2型炎症.
结论:
- 在喘患者中,CD4+ T细胞衰老显著增加.
- 2型炎症似乎在喘中驱动CD4+T细胞衰老.
- CD4+ T细胞衰老可能会加剧喘中的2型炎症,这表明它是治疗点.
相关概念视频
Replicative Cell Senescence
4.4K
Replicative cell senescence is a property of cells that allows them to divide a finite number of times throughout the organism's lifespan while preventing excessive proliferation. Replicative senescence is associated with the gradual loss of the telomere — short, repetitive DNA sequences found at the end of the chromosomes. Telomeres are bound by a group of proteins to form a protective cap on the ends of chromosomes. Embryonic stem cells express telomerase — an enzyme that adds...
4.4K
Inflammation
62.3K
Overview
62.3K
Diabetes Mellitus: Type 2 and Gestational
5.0K
Type 2 diabetes, characterized by insulin resistance, arises when the insulin receptors on cells lose responsiveness to insulin, diminishing the cell's capacity to take up glucose, resulting in elevated blood glucose levels. To receive a diagnosis of Type 2 diabetes, a series of blood glucose tests are necessary to assess whether the blood glucose falls within normal parameters. If the result is out of the normal range, a patient may be diagnosed as prediabetic or diabetic, depending on the...
5.0K
Asthma-I: Introduction
3.6K
Asthma is a chronic respiratory ailment that requires careful management due to its varying symptoms and influencing factors. It is characterized by airway inflammation, bronchial hyperresponsiveness, and reversible airflow obstruction, leading to symptoms like wheezing, shortness of breath, chest tightness, and coughing. The symptom frequency and intensity may vary considerably over time. It is also linked to immune system responses to allergens and irritants, highlighting the complex...
3.6K
Accelerators
292
Accelerators in concrete serve as admixtures to speed up the hardening process, enabling the concrete to achieve early strength faster. Although accelerators do not necessarily impact the time it takes concrete to set, they reduce this time in practice. A common accelerator is calcium chloride, which is particularly useful for hastening early strength development in cold weather or for rapid repair jobs that require quick heat generation after mixing.
The effectiveness of calcium chloride can...
The effectiveness of calcium chloride can...
292
Asthma-III: Symptoms and Complications
3.4K
Asthma, a common chronic respiratory condition, is classified considering the frequency and severity of symptoms alongside lung function impairment. Understanding this classification is essential for appropriate treatment and management. Here's a detailed look at the classification of asthma and its clinical features and complications:
Classification of Asthma
Classification of Asthma
3.4K


