| COPD | chronic obstructive pulmonary disease |
| COX-2 | cyclooxygenase-2 |
| CS | cigarette smoke |
| CSE | cigarette smoke extracts |
| YE | yeast extracts |
| IL | interleukin |
| iNOS | inducible nitric oxide synthase |
| LPS | lipopolysaccharide |
| MCP-1 | monocyte chemoattractant protein-1 |
| MMP-12 | matrix metalloproteinase-12 |
| NF-κB | nuclear factor-κB |
| OVA | ovalbumin |
| ROS | reactive oxygen species |
| TNF-α | tumor necrosis factor-α |
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