| AMs | alveolar macrophages |
| ARDS | acute respiratory distress syndrome |
| ATII | alveolar epithelial cell type 2 |
| BAL | bronchoalveolar lavage |
| CCR8 | chemokine receptor 8 |
| CDH11 | cadherin-11 |
| CSF1 | colony-stimulating factor 1 |
| CTGF | connective tissue growth factor |
| DAMPs | damage-associated molecular patterns |
| ECM | extracellular matrix |
| EGFR | epidermal growth factor receptor |
| EMT | Epithelial–mesenchymal transition |
| EVs | exosomes and extracellular vesicles |
| FGF-1 | fibroblast growth factor receptor-1 |
| IFIGENIA | controlled Idiopathic Pulmonary Fibrosis International Group Exploring N-Acetylcysteine I Annual |
| ILD | interstitial lung disease |
| IMs | interstitial macrophages |
| IPF | idiopathic pulmonary fibrosis |
| Jmjd | Jumonji domain containing |
| M1 | classically activated macrophages |
| M2 | alternatively activated macrophages |
| M-CSFR | colony-stimulating factor receptor |
| MFGE8 | milk fat globule EGF 8 |
| MIF | macrophage migration inhibitory factor |
| miRNA | microRNA |
| MMP | matrix metalloprotease |
| MMT | myofibroblast transition |
| Mo-AMs | monocyte-derived alveolar macrophages |
| mRNA | messenger RNA |
| NAC | N-acetylcysteine |
| PANTHER | Prednisone, Azathioprine, and N-Acetylcysteine: A Study That Evaluates Response |
| PAMPs | pathogen-associated molecular patterns |
| PDGF-R | platelet-derived growth factor receptor |
| PFT | pulmonary function test |
| RIF | radiation-induced lung fibrosis |
| rRNA | ribosomal RNA |
| SAP | serum amyloid P |
| TGF-β | transforming growth factor beta |
| TLR4 | Toll-like receptor 4 |
| TR-Mφ | tissue resident macrophages |
| tRNA | transfer RNA |
| UIP | usual interstitial pneumonia |
| VEGFR-2 | vascular endothelial growth factor receptor-2 |