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Airway inflammation represents a hallmark of the cystic fibrosis (CF) disease. However, the mucosal distribution of immune cells along the CF airways has not been clearly defined, particularly in intermediate bronchi and distal bronchioles. We analysed lung tissues collected at the time of transplantation from homozygous DeltaF508+/+CF patients versus(More)
Exacerbated inflammation is now recognized as an important component of cystic fibrosis (CF) airway disease. Whether inflammation is part of the basic defect in CF or a response to persistent infection remains controversial. We addressed this question using human fetal tracheal grafts in severe combined immunodeficient mice. This model yields histologically(More)
It is well documented that patients with cystic fibrosis (CF) are unable to clear persistent airway infections in spite of strong local inflammation, suggesting a dysregulation of immunity in CF. We and others have reported previously that T lymphocytes may play a prominent role in this immune imbalance. In the present work, we compared the reactivity of(More)
BACKGROUND Airway inflammation and infection are early events in cystic fibrosis (CF) pathogenesis. The existence of an imbalance in the immune cell population of the CF fetal airway before infection remains completely unknown. OBJECTIVE The aim of this study was to determine whether early signs of inflammation are observed in CF airways during human(More)
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