Table 1.
human cell linesa/IC50 (µM)b | |||||
---|---|---|---|---|---|
|
|||||
alkaloid | A549 | MDA-MB- 231 |
MCF-7 | KB | KB-VIN |
1 | 0.064 | 0.264 | 0.413 | 0.228 | 0.241 |
2 | 3.981 | 5.707 | 7.421 | 5.488 | 5.907 |
3 | 8.709 | 26.13 | 26.56 | 17.03 | 19.80 |
4 | 29.26 | 41.01 | >40 | 35.50 | >40 |
5 | >40 | >40 | >40 | >40 | >40 |
PXL (nM) | 6.20 | 8.82 | 10.40 | 6.27 | 1926 |
A549 (lung carcinoma), MDA-MB-231 (triple-negative breast cancer), MCF-7 (estrogen receptor-positive & HER2-negative breast cancer), KB (epidermoid carcinoma of the nasopharynx), KB-VIN (Pgp-overexpressing MDR subline of KB).
Antiproliferative activity as IC50 values for each cell line, the concentration of compound that caused 50% reduction relative to untreated cells determined by the SRB assay.