CXCL8 and acute respiratory distress syndrome: A similar study by To et al. showed significantly higher levels of granulocyte colony-stimulating factor (G-CSF), IFNα2, IL1α, IL6, IL8, IL10, IL15, IP10, and MCP1 in plasma samples of patients that developed ARDS and died than in those patients that developed mild disease at early times after onset of symptoms (48).