Altered mucosal immune response after acute lung injury in a murine model of Ataxia Telangiectasia.
BMC Pulm Med
; 14: 93, 2014 May 29.
Article
em En
| MEDLINE
| ID: mdl-24884546
ABSTRACT
BACKGROUND:
Ataxia telangiectasia (A-T) is a rare but devastating and progressive disorder characterized by cerebellar dysfunction, lymphoreticular malignancies and recurrent sinopulmonary infections. In A-T, disease of the respiratory system causes significant morbidity and is a frequent cause of death.METHODS:
We used a self-limited murine model of hydrochloric acid-induced acute lung injury (ALI) to determine the inflammatory answer due to mucosal injury in Atm (A-T mutated)- deficient mice (Atm(-/-)).RESULTS:
ATM deficiency increased peak lung inflammation as demonstrated by bronchoalveolar lavage fluid (BALF) neutrophils and lymphocytes and increased levels of BALF pro-inflammatory cytokines (e.g. IL-6, TNF). Furthermore, bronchial epithelial damage after ALI was increased in Atm(-/-) mice. ATM deficiency increased airway resistance and tissue compliance before ALI was performed.CONCLUSIONS:
Together, these findings indicate that ATM plays a key role in inflammatory response after airway mucosal injury.
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Ataxia Telangiectasia
/
Imunidade nas Mucosas
/
Lesão Pulmonar Aguda
Tipo de estudo:
Prognostic_studies
Limite:
Animals
Idioma:
En
Ano de publicação:
2014
Tipo de documento:
Article