| CFA | Complete Freund’s adjuvant |
| DEGs | Screening of differentially expressed genes |
| MMP-7 | Matrix metalloproteinase-7 |
| PPI | Protein–protein interaction |
| PMCs | Pleural mesothelial cells |
| RA-ILD | Rheumatoid arthritis-related interstitial lung disease |
| RA | Rheumatoid arthritis |