Therapeutic Characteristics of Alveolar-like Macrophages in Mouse Models of Hyperoxia and LPS-Induced Lung Inflammation

The current findings support the prospective use of stem cell-derived alveolar-like macrophages (ALMs) as a therapeutic for inflammatory lung disease such as acute respiratory distress syndrome (ARDS) during supplemental oxygen therapy where lungs are exposed to high levels of oxygen. Alveolar-like macrophages directly delivered to mouse lungs were found to remain viable, immunologically stable, phagocytic toward live Pseudomonas aeruginosa, and effective in reducing CD11b + inflammatory cell numbers in LPS-challenged lungs during moderate and extreme hyperoxic exposure.