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Related Concept Videos

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Chronic obstructive pulmonary isease (COPD) involves a group of progressive lung disorders characterized by persistent airflow limitation and chronic respiratory symptoms. Asthma-COPD Overlap Syndrome (ACOS), encompassing features of both asthma and Chronic obstructive pulmonary disease (COPD), is a group of progressive lung disorders that includes chronic bronchitis, emphysema, and refractory (non-reversible) asthma. ACOS leads to complex clinical presentations that combine the inflammatory...
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Asthma-II: Pathophysiology and Classification01:26

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Chronic Obstructive Pulmonary Disease01:24

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Author Spotlight: Investigating the Pathophysiology of Eosinophilic Esophagitis
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Author Spotlight: Investigating the Pathophysiology of Eosinophilic Esophagitis

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Eosinophils in COPD: just another biomarker?

Mona Bafadhel1, Ian D Pavord1, Richard E K Russell1

  • 1Respiratory Medicine Unit, Nuffield Department of Medicine, University of Oxford, Oxford, UK.

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|June 12, 2017
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Summary
This summary is machine-generated.

Eosinophils in the lungs play a key role in Chronic Obstructive Pulmonary Disease (COPD). Blood eosinophil counts predict COPD exacerbations, mortality, and treatment response, highlighting their importance.

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Area of Science:

  • Immunology
  • Pulmonology
  • Cell Biology

Background:

  • Eosinophils are innate immune cells with an unclear function in respiratory health and disease.
  • These cells are present in the airways, tissues, and blood of Chronic Obstructive Pulmonary Disease (COPD) patients, during stable periods and exacerbations.
  • The presence of eosinophils in COPD is increasingly recognized.

Purpose of the Study:

  • To review the role of eosinophils as both biomarkers and mediators in COPD.
  • To explore the association between eosinophil levels and clinical risk in COPD patients.
  • To understand the mechanisms by which eosinophils contribute to COPD pathogenesis.

Main Methods:

  • Review of epidemiological studies and clinical trial data.
  • Analysis of the association between blood eosinophil count and COPD outcomes.
  • Synthesis of current knowledge on eosinophil function in the context of COPD.

Main Results:

  • Blood eosinophil count is linked to COPD exacerbation risk, mortality, and FEV1 decline.
  • Eosinophil levels correlate with patient response to inhaled and systemic corticosteroids.
  • Evidence suggests eosinophils are significant in COPD pathophysiology.

Conclusions:

  • Eosinophils serve as a valuable biomarker for predicting COPD exacerbations and treatment response.
  • Further research is crucial to elucidate the mechanistic role of eosinophils in COPD.
  • Targeting eosinophils may offer new therapeutic strategies for COPD management.