3 Expression of apoptosis-related proteins by airway-derived T-cells and epithelial cells in chronic obstructive pulmonary disease (COPD)
| Cell type | Control group | COPD | p-value |
| Epithelial cell | |||
| P53 | 18.4±7.1 | 28.1±8.5 | 0.005* |
| Bcl-2 | 22.3±7.5 | 23.2±8.7 | NS |
| Bax | 46.3±9.4 | 52.4±9.6 | NS |
| T-cell | |||
| P53 | 23.9±8.8 | 33.0±9.2 | 0.045* |
| Bcl-2 | 26.6±13.2 | 22.9±7.9 | NS |
| Bax | 41.1±20.7 | 40.2±7.3 | NS |
Data (% of cells exhibiting positive staining measured by flow cytometry) presented as mean values±sd. ns: nonsignificant. *: significant difference from control group.