| SIRT3 | sirtuin-3 |
| Sirt3Tg | transgenic whole body SIRT3 overexpression |
| WT | wild-type |
| AEC | alveolar epithelial cell |
| AT2 | alveolar type II cell |
| ROS | reactive oxygen species |
| mtDNA | mitochondrial DNA |
| mtOGG1 | mitochondrial 8-oxoguanine-DNA glycosylase 1 |
| OGG1 | 8-oxyguanine DNA glycosylase |
| BER | base excision repair |
| BALF | bronchoalveolar lavage fluid |
| MnSOD | manganese superoxide dismutase |
| EVs | extracellular vesicles |
| ER | endoplasmic reticulum |
| H&E | hematoxylin and eosin |
| HLF | human lung fibroblasts |
| mtOgg1tg | human mitochondria-targeted OGG1 subunit 1-alpha transgene |
| IPF | idiopathic pulmonary fibrosis |
| IP | intra-peritoneal |
| IT | intra-tracheal |
| MCAT | mitochondrial catalase enforced-expression |
| α-SMA | alpha-smooth muscle actin |
| TGFβ | transforming growth factor-beta |
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