| COPD | Chronic obstructive pulmonary disease |
| CSE | Cigarette smoke extract |
| CS | Cigarette smoke |
| LPS | Lipopolysaccharide |
| PITPβ | Phosphatidylinositol transfer protein β |
| ERK | Extracellular signal-regulated kinase |
| EGFR | Epidermal growth factor receptor |
| PI | Phosphatidylinositol |
| PC | Phosphatidylcholine |
| PG | Phosphatidylglycerol |
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