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Published on: April 16, 2019
Inflammatory Mediators Associated With Corticosteroid Responsiveness During Asthma Attacks
Carlos Celis-Preciado1, Elsa Ben Hamou Kuijpers1, Mohamed-Ilias Kourid1
1Faculté de médecine et Des Sciences de la santé, Université de Sherbrooke, Sherbrooke, Québec, Canada.
Summary
Higher baseline levels of eotaxin-3 and IL-5 predict better lung function improvement in asthma patients treated with oral corticosteroids (OCS). Inflammatory responses to OCS vary among T2-high asthma phenotypes.
Area of Science:
- Pulmonology
- Immunology
- Asthma Research
Background:
- Asthma exacerbations often require oral corticosteroid (OCS) treatment.
- Interleukin-5 (IL-5) and eotaxin-3 are key inflammatory mediators in certain asthma phenotypes.
- Predictors of OCS response in acute asthma are not fully elucidated.
Purpose of the Study:
- To investigate the association between baseline inflammatory markers and FEV1 improvement after OCS treatment during asthma attacks.
- To explore differences in corticosteroid-induced inflammatory modulation across T2-high asthma phenotypes.
Main Methods:
- Analysis of baseline sputum/serum eotaxin-3 and serum IL-5 levels in asthma patients experiencing attacks.
- Correlation of these levels with FEV1 improvement following OCS administration.
- Comparison of inflammatory modulation by OCS across different T2 phenotypes.
Main Results:
- Elevated baseline sputum/serum eotaxin-3 and serum IL-5 levels were significantly associated with greater FEV1 improvement post-OCS.
- Evidence suggests that the modulation of inflammation by corticosteroids differs among T2 phenotypes during asthma attacks.
Conclusions:
- Baseline eotaxin-3 and IL-5 may serve as biomarkers for predicting OCS response in acute asthma.
- Understanding T2 phenotype-specific inflammatory responses is crucial for optimizing asthma exacerbation management.
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