First Author | Chang S | Year | 2015 |
Journal | PLoS One | Volume | 10 |
Issue | 7 | Pages | e0131810 |
PubMed ID | 26148206 | Mgi Jnum | J:238387 |
Mgi Id | MGI:5819186 | Doi | 10.1371/journal.pone.0131810 |
Citation | Chang S, et al. (2015) DUOX-Mediated Signaling Is Not Required for LPS-Induced Neutrophilic Response in the Airways. PLoS One 10(7):e0131810 |
abstractText | Oxidant production from DUOX1 has been proposed to lead to neutrophil recruitment into the airways when lung homeostasis is compromised. The objective of this study was to determine whether DUOX-derived hydrogen peroxide is required for LPS-induced neutrophil recruitment, using a functional DUOX knock out mouse model. We found that LPS induced profound neutrophilic lung inflammation in both Duoxa(+/+)and Duoxa(-/-) mice between 3h and 24h. Duoxa(-/-) mice had significantly higher neutrophil influx 24h after LPS instillation despite similar cytokine levels (KC, MIP-2, or TGF-alpha) between the two groups. These findings suggest that LPS-TLR-4-induced KC or MIP-2 cytokine induction and subsequent neutrophil recruitment in the airway does not require DUOX-derived hydrogen peroxide from airway epithelium. |