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14:39
Bronchial Thermoplasty: A Novel Therapeutic Approach to Severe Asthma
Published on: November 4, 2010
[Severe asthma: new therapeutic targets].
1Pneumologie A, Inserm U700, Hôpital Bichat, Faculté de médecine Denis Diderot, Université Paris 7. michel.aubier@bch.aphp.fr
Bulletin De L'Academie Nationale De Medecine
|April 26, 2011
Summary
Severe asthma involves persistent airway inflammation and obstruction. Targeting eosinophils and airway remodeling, particularly endothelin-1 (ET-1), offers potential new treatments for difficult-to-treat asthma.
Area of Science:
- * Respiratory Medicine
- * Immunology
- * Molecular Biology
Context:
- * Severe asthma affects 10% of patients, characterized by chronic symptoms and persistent airway obstruction despite standard treatments.
- * Current therapies for severe asthma are limited, highlighting the need for novel therapeutic targets.
- * Airway remodeling and persistent eosinophilia are key features of severe, refractory asthma.
Purpose:
- * To explore the cellular and molecular mechanisms underlying severe asthma.
- * To identify potential therapeutic targets for severe steroid-refractory asthma.
- * To investigate the role of airway remodeling and endothelin-1 (ET-1) in severe asthma pathogenesis.
Summary:
- * Severe asthma is associated with persistent airway eosinophilia, driven by Interleukin-5 (IL-5), and airway remodeling.
- * Eosinophils contribute to inflammation and damage via cytokines and cationic proteins; IL-5 blockade reduces exacerbations.
- * Airway epithelium abnormalities in severe asthma promote remodeling through factors like ET-1, which correlates with obstruction.
Impact:
- * Targeting IL-5 has shown promise in reducing exacerbations in refractory asthma.
- * Interventions focused on eosinophil cationic proteins may offer therapeutic benefits.
- * Endothelin-1 (ET-1) emerges as a potential novel therapeutic target for severe steroid-refractory asthma, addressing airway remodeling and obstruction.
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