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Chronic Obstructive Pulmonary Disease Biomarkers and Their Interpretation
Robert A Stockley1, David M G Halpin2, Bartolome R Celli3
11 Lung Investigation Unit, Medicine, University Hospitals Birmingham NHS Foundation Trust, Queen Elizabeth Hospital Birmingham, Birmingham, United Kingdom.
American Journal of Respiratory and Critical Care Medicine
|December 29, 2018
Summary
Chronic obstructive pulmonary disease (COPD) involves inflammation and tissue damage from inhaled toxins. New strategies are needed to develop specific biomarkers for better COPD diagnosis and treatment.
Area of Science:
- Pulmonary Medicine
- Biomarker Research
- Inflammatory Diseases
Background:
- Chronic obstructive pulmonary disease (COPD) arises from abnormal inflammation and tissue damage due to inhaled toxins, primarily cigarette smoke.
- Understanding COPD's underlying mechanisms is crucial for developing targeted therapies and personalized management strategies.
- Advances in genetic and biochemical data collection have spurred biomarker research in COPD.
Purpose of the Study:
- To critically assess the interpretation of current chronic obstructive pulmonary disease (COPD) biomarker studies.
- To identify challenges in biomarker specificity and the need for improved clinical and endotype data.
- To propose a strategic shift towards developing more clinically useful COPD biomarkers.
Main Methods:
- Review and critical analysis of existing literature on COPD biomarkers.
- Assessment of biomarker associations regarding causality, disease reflection, and pathway complexity.
- Evaluation of interpretation issues in cross-sectional studies and biomarker specificity.
Main Results:
- Many statistically significant biomarker associations in COPD lack clear interpretation regarding cause or effect.
- Biomarker specificity is often limited by insufficient clinical phenotype and endotype information.
- Cross-sectional study designs complicate the understanding of individual disease trajectories.
Conclusions:
- A strategic change is essential for developing effective COPD biomarkers.
- Future efforts should focus on endotype biomarkers within specific clinical phenotypes.
- Developing biomarkers for early COPD, exacerbation subtypes, and drug effects is critical.
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