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Stability of the established cell lines
| Periods | IC50/(µg/ml) | Resistance Index, RI | IC50/(µg/ml) | Resistance Index, RI | ||
|---|---|---|---|---|---|---|
|
|
|
|||||
| HNE-1 | HNE-1/DDP | CNE-2 | CNE-2/DDP | |||
| Established | 0.594 | 7.08 | 11.92 | 0.453 | 21.341 | 47.11 |
| 3 months without CDDP | - | 5.979 | 10.07 | - | 16.717 | 36.90 |
| 6 months’ storage in liquid nitrogen | 0.679 | 8.26 | 12.16 | 0.459 | 20.252 | 44.12 |
