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IC50 and IDR of cisplatin on A549/DDP cells (n=3).
| Cell | IC50 (µg/ml) | IDR |
|---|---|---|
| A549 | 1.36 | – |
| A549/DDP | 13.29 | 9.77 |
IDR was calculated according to the following formula: IDR=IC50 (A549/DDP)/IC50 (A549). IDR, index of drug resistance; IC50, half maximal inhibitory concentration; DDP, diamminedichloroplatinum resistance; -. not applicable.
