在慢性阻塞性肺病模型中,肺淋巴内皮细胞经历炎症和前血栓变化
Anjali Trivedi1, Tyler M Lu2,3,4, Barbara Summers1
1Department of Medicine, Division of Pulmonary and Critical Care, Weill Cornell Medicine, New York, NY, United States.
Frontiers in cell and developmental biology
|March 5, 2024
概括
在慢性阻塞性肺病 (COPD) 中,香烟烟雾和血栓暴露会导致淋巴内皮细胞 (LEC) 的炎症变化. 这些LEC变化可能导致COPD患者的淋巴功能障碍和肺损伤.
科学领域:
- 肺部医学 肺部医学
- 血管生物学 血管生物学
- 免疫学 免疫学 免疫学
背景情况:
- 淋巴血管系统对于肺部恒温和损伤反应至关重要.
- 淋巴功能障碍,以血栓和纤维素凝块为标志,是慢性阻塞性肺病 (COPD) 的早期特征,与香烟烟雾 (CS) 有关.
- 在COPD病变发生过程中,CS和血栓素对淋巴内皮细胞 (LEC) 的直接影响尚不清楚.
研究的目的:
- 调查CS和血栓对人类肺部微血管LEC的影响.
- 为了确定CS暴露是否会在LEC中诱导类似的内皮功能障碍,就像在COPD中观察到的血液血管系统一样.
- 在小鼠模型和人类COPD样本中分析LECs的炎症和前血栓变化.
主要方法:
- 人类肺部微血管LEC的体外细胞培养,用香烟烟雾提取物 (CSE) 和/或血栓治疗.
- 来自暴露于CS的小鼠的肺LECs的RNA测序.
- 分析单细胞RNA测序数据和COPD患者肺组织的免疫组织化学染色.
主要成果:
- CSE治疗降低了LEC中的纤维解活性,增加了等离子体激活剂抑制剂1 (PAI-1) 的表达.
- 结合CSE和血栓治疗降低了组织因子通路抑制剂 (TFPI) 表达,并增加了LEC中的粘附分子.
- 在小鼠LEC中,CS暴露上调了原血栓和炎症途径;人类COPD患者的LEC显示炎症标志物增加.
结论:
- 淋巴内皮经历炎症性变化由于CS暴露和COPD中的血栓,反映了血管的变化.
- 这些LEC的炎症变化可能会损害淋巴功能,并导致COPD的组织损伤.
- 需要进一步的研究来阐明将这些LEC变化与COPD进展联系在一起的确切机制.
相关概念视频
01:20Chronic Obstructive Pulmonary Disease-II: Pathophysiology
2.8K
Chronic Obstructive Pulmonary Disease (COPD) pathophysiology is intricate and multifaceted, involving a complex interplay of physiological processes. Understanding these mechanisms is crucial for effectively managing and treating COPD. Here is an in-depth look at the critical elements in the pathophysiology of COPD:
Chronic Inflammation
Chronic Inflammation
2.8K
01:25Chronic Obstructive Pulmonary Disease-III: Symptoms and Complications.
2.8K
Understanding the variety of primary symptoms and systemic complications that characterize chronic obstructive pulmonary disease (COPD) is crucial for healthcare professionals.
Symptoms of COPD can be classified as primary or systemic. Primary symptoms relate to reduced airflow, while systemic or extrapulmonary symptoms relate to COPD's broader impact on the body.
Primary Symptoms of COPD:
Symptoms of COPD can be classified as primary or systemic. Primary symptoms relate to reduced airflow, while systemic or extrapulmonary symptoms relate to COPD's broader impact on the body.
Primary Symptoms of COPD:
2.8K
01:20Chronic Obstructive Pulmonary Disease-I: Introduction
2.8K
Chronic Obstructive Pulmonary Disease (COPD) is a long-lasting respiratory condition requiring continuous attention and care. It is a progressive lung disease that leads to breathing challenges due to airflow obstruction. It manifests as persistent respiratory symptoms and restricted airflow resulting from abnormalities in the airways and alveoli, usually due to long-term exposure to harmful particles or gases. COPD mainly consists of two primary conditions: emphysema and chronic bronchitis.
2.8K
01:22Chronic Obstructive Pulmonary Disease
1.2K
COPD is defined as a heterogeneous lung condition marked by persistent respiratory symptoms such as dyspnea, cough, and sputum production, caused by abnormalities in the airways that cause airflow obstruction.
Smoking is a primary risk factor for COPD, with over 80% of patients having a history of it. Patients typically experience progressive dyspnea or labored breathing, frequent coughing, and recurrent pulmonary infections. Many eventually succumb to respiratory failure, characterized by...
Smoking is a primary risk factor for COPD, with over 80% of patients having a history of it. Patients typically experience progressive dyspnea or labored breathing, frequent coughing, and recurrent pulmonary infections. Many eventually succumb to respiratory failure, characterized by...
1.2K
01:20COPD: Pathogenesis and Clinical Features
272
Chronic obstructive pulmonary disease (COPD) is a group of lung conditions that progressively worsen over time, including chronic bronchitis and emphysema. This cluster of diseases collectively leads to a gradual and irreversible decline in lung function over time.
The primary cause for the onset of COPD is cigarette smoking and exposure to air pollution. These hazardous factors initiate a chain reaction within the lungs, resulting in chronic inflammation, damage to the airways, and a...
The primary cause for the onset of COPD is cigarette smoking and exposure to air pollution. These hazardous factors initiate a chain reaction within the lungs, resulting in chronic inflammation, damage to the airways, and a...
272
01:27Chronic Obstructive Pulmonary Disease-IV: Assessement and Diagnostic Studies
2.5K
Assessing and diagnosing Chronic Obstructive Pulmonary Disease (COPD) involves a detailed approach that includes a comprehensive review of medical history, physical examination, and a variety of diagnostic tests. This thorough evaluation is essential to ensure an accurate diagnosis and guide effective management strategies.
Medical History
Medical History
2.5K