| 5-FU | 5-fluorouracil |
| CAFs | cancer-related fibroblasts |
| dCK | deoxycytidine kinase |
| dCTP | deoxycytidine triphosphate |
| dFdC | 2′,2′-difluoro-2′-deoxycytidine |
| ECM | extracellular matrix |
| EMT | epithelial-mesenchymal transition |
| MSCs | mesenchymal stem cells |
| NT | nucleoside transporter |
| OS | overall survival |
| PDAC | pancreatic ductal adenocarcinoma |
| PSCs | pancreatic stellate cells |
| RR | ribonucleotide reductase |
| TS | thymidylate synthase |