IL10 and acute respiratory distress syndrome: Exert an immunosuppressive effect by inducing monocytes to express IL‐10 and inhibiting T helper 1 (TH1) cells and dendritic cells (DCs) activity in many studies.Exert antibacterial effect in E. coli‐induced ALI mice model.Attenuate lung damage by promoting the proliferation of pulmonary vascular endothelial cells, inhibit their apoptosis, or reduce the expression of caveolin‐1 protein to maintain the integrity of the injured endothelial monolayer and restores lung vascular permeability.