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CCL11 as a potential diagnostic marker for asthma?
1Department of Respiratory Medicine, The First Affiliated Hospital of Nanjing Medical University , Guangzhou Road, Nanjing , China and.
Summary
CCL11 (eotaxin) is elevated in asthma patients across various bodily fluids, with sputum showing the most significant changes. This chemokine is a potential biomarker for asthma diagnosis and severity assessment.
Area of Science:
- Immunology
- Respiratory Medicine
- Biomarker Discovery
Background:
- Asthma is an inflammatory airway disease driven by eosinophilia.
- CCL11 (eotaxin) plays a critical role in eosinophil recruitment and activation in asthma.
Purpose of the Study:
- To determine elevated CCL11 levels in bronchoalveolar lavage fluid (BALF), blood, exhaled breath condensate (EBC), and sputum of asthma patients.
- To identify the medium with the most significant CCL11 level change in asthma.
Main Methods:
- Systematic literature search of PubMed, Embase, and Cochrane databases up to September 2013.
- Inclusion of controlled clinical trials comparing CCL11 concentrations in asthma patients and controls.
- Data analysis using Stata 12.0.
Main Results:
- Thirty studies confirmed significantly higher CCL11 levels in blood, EBC, and sputum of asthma patients versus healthy subjects.
- Sputum CCL11 levels were significantly higher in unstable and uncontrolled asthma.
- CCL11 levels correlated negatively with lung function (FEV1% predicted) and positively with eosinophil counts and inflammatory markers.
Conclusions:
- CCL11 is a promising biomarker for asthma diagnosis and severity assessment, particularly when measured in sputum.
- CCL11 is integral to eosinophil chemoattraction and activation in asthma pathogenesis.
- Further research with anti-CCL11 therapies is warranted to validate its role, especially in severe asthma.
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