| BALF | bronchoalveolar lavage fluid |
| BSMCs | bronchial smooth muscle cells |
| EMT | epithelial-mesenchymal transition |
| EVs | extracelular vesicles |
| ICS | inhaled corticosteroid |
| ILC | innate lymphoid cell |
| ILVs | intraluminal vesicles |
| MSCs | mesenchymal stem cells |
| MVBs | multivesicular bodies |
| PM | plasmatic membrane |
| PMNs | polymorphonuclear cells |
| Treg | regulatory T cells |
| SAECs | small airway epithelial cells |
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