Article (Scientific journals)
A novel formulation of inhaled doxycycline reduces allergen-induced inflammation, hyperresponsiveness and remodeling by matrix metalloproteinases and cytokines modulation in a mouse model of asthma
Guéders, Maud; Bertholet, P.; Perin, Fabienne et al.
2008In Biochemical Pharmacology, 75 (2), p. 514-26
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Keywords :
Asthma; Inflammation; Remodeling; Bronchial resistance; Matrix metalloproteinases; Doxycycline
Abstract :
[en] Background In this study, we assess the effectiveness of inhaled doxycycline, a tetracycline antibiotic displaying matrix metalloproteinases (MMP) inhibitory effects to prevent allergen-induced inflammation, hyperresponsiveness and remodeling. MMPs play key roles in the complex cascade of events leading to asthmatic phenotype. Methods Doxycycline was administered by aerosols by the mean of a novel formulation as a complex with hydroxypropyl-gamma-cyclodextrin (HP-gamma-CD) used as an excipient. BALB/c mice (n = 16–24 in each group) were sensitized and exposed to aerosolized ovalbumin (OVA) from day 21 to 27 (short-term exposure protocol) or 5 days/odd weeks from day 22 to 96 (long-term exposure protocol). Results In the short-term exposure model, inhaled doxycycline decreased allergen-induced eosinophilic inflammation in bronchoalveolar lavage (BAL) and in peribronchial areas, as well as airway hyperresponsiveness. In lung tissue, exposure to doxycycline via inhaled route induced a fourfold increase in IL-10 levels, a twofold decrease in IL-5, IL-13 levels and diminished MMP-related proteolysis and the proportion of activated MMP-9 as compared to placebo. In the long-term exposure model, inhaled doxycycline significantly decreased the extent of glandular hyperplasia, airway wall thickening, smooth muscle hyperplasia and subepithelial collagen deposition which are well recognized features of airway remodeling. Conclusion Doxycycline administered by aerosols decreases the allergen-induced airway inflammation and hyperresponsiveness and inhibits the development of bronchial remodeling in a mouse model of asthma by modulation of cytokines production and MMP activity.
Disciplines :
Biochemistry, biophysics & molecular biology
Author, co-author :
Guéders, Maud ;  Université de Liège - ULiège > Département des sciences cliniques > Labo de biologie des tumeurs et du développement
Bertholet, P.
Perin, Fabienne ;  Université de Liège - ULiège > Département des sciences cliniques > Labo de biologie des tumeurs et du développement
Rocks, Natacha ;  Université de Liège - ULiège > Département des sciences cliniques > Labo de biologie des tumeurs et du développement
Marée, Raphaël  ;  Université de Liège - ULiège > GIGA-Management : Plateforme bioinformatique
Botta, Vincent ;  Université de Liège - ULiège > Dép. d'électric., électron. et informat. (Inst.Montefiore) > Systèmes et modélisation
Louis, Renaud ;  Centre Hospitalier Universitaire de Liège - CHU > Pneumologie-Allergologie
Foidart, Jean-Michel ;  Université de Liège - ULiège > Département des sciences cliniques > Gynécologie - Obstétrique - Labo de biologie des tumeurs et du développement
Noël, Agnès ;  Université de Liège - ULiège > Département des sciences biomédicales et précliniques > Biologie cellulaire et moléculaire appliquée à l'homme
Evrard, Brigitte  ;  Université de Liège - ULiège > Département de pharmacie > Pharmacie galénique
Cataldo, Didier  ;  Université de Liège - ULiège > Département des sciences biomédicales et précliniques > Biochimie et physiologie générales, humaines et path.
Language :
English
Title :
A novel formulation of inhaled doxycycline reduces allergen-induced inflammation, hyperresponsiveness and remodeling by matrix metalloproteinases and cytokines modulation in a mouse model of asthma
Publication date :
2008
Journal title :
Biochemical Pharmacology
ISSN :
0006-2952
eISSN :
1873-2968
Publisher :
Elsevier Science, Oxford, United Kingdom
Volume :
75
Issue :
2
Pages :
514-26
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 18 January 2010

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