Anti-inflammatory role of CD11b+Ly6G+ neutrophilic cells in allergic airway inflammation in mice
2018
Abstract Asthma is a chronic inflammatory disease driven by overactivation of T helper cell type 2 (Th2) responses. In the present study, we investigated the functional relevance of CD11b + Ly6G + neutrophilic cells in allergic airway inflammation in vivo . Allergic airway inflammation in mice was induced by house dust mite (HDM) or ovalbumin (OVA) sensitization and challenge. CD11b + Ly6G + neutrophilic cells and T cell phenotypes were quantified by flow cytometry. To assess the functional in vivo relevance, CD11b + Ly6G + neutrophilic cells were adoptively transferred intravenously or intratracheally and consequences on airway inflammation were studied. Adoptively transferred CD11b + Ly6G + neutrophilic cells attenuated Th2 and Th17 responses and airway inflammation in vivo . Collectively, our results demonstrate that CD11b + Ly6G + neutrophilic cells suppress airway inflammation in allergic mice in vivo . Adoptive cellular transfer of suppressive neutrophilic cells may represent an attractive therapeutic strategy for allergic airway inflammation.
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