CP-724714 is >1,000-fold less potent for insulin receptor, insulin-like growth factor-I receptor, platelet-derived growth factor β, vascular endothelial growth factor 2, Abl, Src, c-Met, JNK-2, JNK-3, ZAP-70, Cdk-2, and Cdk-5.
CP-724714 potently reduces the EGF-induced autophosphorylation of the chimera containing the erbB2 kinase domain at a concentration as low as 50 nmol/L (IC50=32 nM) but is markedly less potent against EGFR.
CP-724714 (1 μM; 24 hours) induces G1 cell cycle block in vitro in erbB2-overexpressing BT-474 human breast carcinoma cells.
Cell Cycle Analysis
| Cell Line: |
erbB2-amplified BT-474 breast cancer cells |
| Concentration: |
1 μM |
| Incubation Time: |
24 hours |
| Result: |
Resulted in accumulation of cells in G1 phase and a marked reduction in S-phase cells.
|