| MSC | Mesenchymal stem cell |
| MSC-exos | Mesenchymal stem cell-derived exosomes |
| UCMSC-exos | Umbilical cord mesenchymal stem cell-derived exosomes |
| hMSC-exos | Human mesenchymal stem cell-derived exosomes |
| DED | Dry eye disease |
| NK cells | Natural killer cells |
| IFN-γ | Interferon-gamma |
| TNF-α | Tumor necrosis factor-alpha |
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