高衰减区域相关的蛋白质生物标志物与纤维化或多叶膜间的肺异常的关联
John S Kim1,2, Catherine L Debban3, Daniel Guzman4
1University of Virginia, Medicine, Charlottesville, Virginia, United States.
American journal of respiratory and critical care medicine
|August 22, 2025
概括
在CT扫描中与高衰减区域 (HAA) 相关的血蛋白可以预测未来的间歇性肺异常 (ILA). 这些蛋白质参与免疫和细胞过程,为纤维化肺病的发展提供了洞察力.
科学领域:
- 肺部医学
- 放射学
- 生物标志物发现
背景情况:
- 计算机断层扫描 (CT) 上的高衰减区域 (HAA) 表示肺炎和纤维化.
- 系统分子标记物,如血蛋白,可以揭示间歇性肺病 (ILD) 的生物途径.
- 了解这些标志物可以帮助早期发现和管理ILD.
研究的目的:
- 为了识别与HAA相关的血蛋白.
- 确定这些蛋白与新出现的纤维化或多叶膜间肺异常 (ILA) 的发展是否相关.
- 研究这些蛋白质在肺纤维化中的作用.
主要方法:
- 在MESA (n=5486) 和SPIROMICS (n=1761) 队列中使用基于aptamer的平台测量血蛋白水平.
- 线性回归模型确定了HAA相关的蛋白质,并对共变量进行调整.
- 在MESA参与者中评估了新发性纤维化/ 下ILA的相关性;对肺组织进行了免疫组织化学检查.
主要成果:
- 在这两个群体中发现了与HAA显著相关的75种血蛋白.
- 基因本体学分析显示这些蛋白质参与免疫细胞化学反应,生长和亡.
- 七种蛋白质预测了新发的纤维化/亚多性ILA;两种特定蛋白质在纤维化肺组织中染色为阳性.
结论:
- 与HAA相关的血蛋白与免疫和细胞过程有关.
- 这些蛋白与新的纤维化- 副多叶性间歇性肺异常的发展相关.
- 这些发现表明ILD进展的潜在生物标志物.
相关概念视频
01:20Chronic Obstructive Pulmonary Disease-II: Pathophysiology
5.0K
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
5.0K
01:27Chronic Obstructive Pulmonary Disease-IV: Assessement and Diagnostic Studies
3.4K
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
3.4K
01:19Blood Studies for Cardiovascular System II: CRP, Hcy, and Cardiac Natriuretic Peptide Markers
769
Cardiac biomarkers are critical in diagnosing, prognosing, and managing cardiovascular diseases. Routine measurement of specific biomarkers such as B-type natriuretic peptide (BNP), C-reactive protein (CRP), and homocysteine (Hcy) is common practice in clinical settings to evaluate heart function and predict cardiovascular events.
These markers indicate stress or strain on the heart muscle:
Natriuretic Peptides (BNP)
Cardiac myocytes produce these hormones in response to ventricular stretching...
These markers indicate stress or strain on the heart muscle:
Natriuretic Peptides (BNP)
Cardiac myocytes produce these hormones in response to ventricular stretching...
769
01:10Atelectasis II: Pathophysiology
75
Atelectasis develops when alveoli lose their air and collapse inward. Because lung tissue is naturally elastic, these air sacs shrink rather than remaining open. Collapsed alveoli are no longer ventilated, reducing their role in gas exchange. Blood flow may continue in these regions, creating a ventilation–perfusion mismatch. Clinical findings include decreased breath sounds, dullness to percussion, reduced chest expansion, and decreased tactile fremitus as sound transmission through...
75
01:23Chronic Obstructive Pulmonary Disease II: Emphysema
205
Emphysema, a major phenotype of chronic obstructive pulmonary disease (COPD), is characterized by irreversible destruction of alveolar walls and permanent enlargement of distal airspaces. Unlike chronic bronchitis, which primarily affects the airways, emphysema predominantly involves the lung parenchyma, where structural damage leads to airflow limitation.PathophysiologyIt most commonly results from prolonged exposure to cigarette smoke and other toxic gases, particularly cigarette smoke.
205
01:24Chronic Obstructive Pulmonary Disease III: Chronic Bronchitis Features
77
Chronic bronchitis is a key phenotype of chronic obstructive pulmonary disease (COPD), characterized by airway-centered inflammation and mucus overproduction. It develops from long-term exposure to harmful particles or gases, most commonly cigarette smoke, which triggers a persistent inflammatory response.Cellular and Structural ChangesInflammation initially affects the large bronchi and later the smaller airways, with infiltration by immune cells, including neutrophils, macrophages, and...
77