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Related Concept Videos

Chronic Obstructive Pulmonary Disease-II: Pathophysiology01:20

Chronic Obstructive Pulmonary Disease-II: Pathophysiology

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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
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Pulmonary hypertension (PH) is a severe health condition in which the mean pulmonary arterial pressure increases to 25 mmHg or more, even when the body is at rest. This high pressure in the blood vessels that transport blood from the heart to the lungs can cause various symptoms, including shortness of breath, can lead to right heart failure, and significantly affect the overall quality of life.
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COPD: Pathogenesis and Clinical Features01:20

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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.
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Chronic Obstructive Pulmonary Disease-I: Introduction01:20

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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.
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Related Experiment Video

Updated: Jul 19, 2025

Author Spotlight: Exploring the Role of Inflammation in the Co-occurrence of Primary Sjogren's Syndrome and Lung Adenocarcinoma
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Author Spotlight: Exploring the Role of Inflammation in the Co-occurrence of Primary Sjogren's Syndrome and Lung Adenocarcinoma

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Genetic Programs Between Steroid-Sensitive and Steroid-Insensitive Interstitial Lung Disease.

Yanjiao Lu1, Kun Tang2, Shanshan Wang1

  • 1Department of Respiratory and Critical Care Medicine, National Clinical Research Center of Respiratory Disease, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China.

Inflammation
|August 10, 2023
PubMed
Summary

Corticosteroid effectiveness varies in interstitial lung diseases (ILDs). This study identified FOSL1 and DDIT4 as key genes influencing GC response, highlighting the role of inflammation in ILDs like IPF and COP.

Keywords:
CorticosteroidsCryptogenic organizing pneumoniaIdiopathic pulmonary fibrosisInflammationInterstitial lung disease

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Area of Science:

  • Pulmonary Medicine
  • Genomics
  • Bioinformatics

Background:

  • Corticosteroid (GC) effectiveness significantly varies across interstitial lung diseases (ILDs).
  • Understanding the molecular basis of GC sensitivity is crucial for tailoring treatments.
  • Idiopathic pulmonary fibrosis (IPF), cryptogenic organizing pneumonia (COP), and non-specific interstitial pneumonia (NSIP) represent distinct ILD subtypes with differing prognoses.

Purpose of the Study:

  • To compare gene expression profiles in COP, IPF, and NSIP patients.
  • To identify molecular players and pathways associated with GC sensitivity in ILDs.
  • To elucidate the role of inflammatory responses in ILD pathogenesis and GC response.

Main Methods:

  • Analysis of three public gene expression datasets (GSE21411, GSE47460, GSE32537).
  • Identification of differentially expressed genes (DEGs) between ILD subtypes and healthy controls.
  • Functional enrichment analysis and protein-protein interaction network analysis.

Main Results:

  • Significant DEGs were identified across ILD groups, primarily enriched in inflammatory response pathways.
  • The interleukin-17 (IL-17) and tumor necrosis factor (TNF) signaling pathways were implicated in ILDs.
  • Ten hub genes related to inflammation showed higher expression in IPF than COP.
  • FOSL1 and DDIT4 were identified as key genes related to GC response.

Conclusions:

  • The inflammatory response is a critical factor in ILD progression.
  • Inflammatory reactions are more pronounced in IPF compared to COP.
  • FOSL1 and DDIT4 represent potential therapeutic targets for modulating GC response in ILDs.