Updated project metadata. This project aimed to define the proteome of inflammatory lung neutrophils and determine how his is regulated by exposure to in vivo hypoxia. An acute lung injury was induced using nebulised LPS. Following LPS administration mice were housed in either normal room air or in a hypoxic chamber set at an inspired oxygen concentration of 10%. Highly pure bronchoalveolar lavage (BAL) neutrophils were isolated from the lungs of C57Bl6 mice 24 hours after being treated with LPS.