Characteristics
|
Gefitinib was found to be a potent inhibitor of EGFR kinase (Ki = 0.40 nM), but much weaker against ErbB-2 kinase (Ki = 870 nM) and ErbB-4 kinase (Ki = 1.1 μM). The IC50 values for Gefitinib to inhibit HT-29 and LoV °Cell growth were 23.6 - >100 μM and 7.3 - 48.5 μM, respectively, when the exposure times are from 18 hours to 3 days. The IC50 values of Gefitinib to the breast cancer cell lines BT20, HCC1937, MDA-MB-231, BT474, and SKBR3 are 15.5+/-1.4, 8.4+/-1.5, 20.7+/-1.1, 0.25+/-0.05, 0.88+/-0.31 μM, respectively
|