BMS453 (1 μM; 11 hours; 184 and HMEC cells) treatment inhibits the proliferation of normal breast cell growth without significantly inducing apoptosis.
BMS453 (1 μM; 5 days; 184 and HMEC cells) treatment inhibits normal breast cell proliferation by causing G1 arrest.
BMS453 (1 μM; 24-72 hours; 184 cells) treatment induces Rb hypophosphorylation and decrease CDK2 kinase activity. BMS453 increases total p21 protein levels and CDK2-bound p21 protein, but does not change CDK4-bound p21.
BMS453 inhibits breast cell growth predominantly through the induction of active TGFβ.
Cell Proliferation Assay
Cell Line: |
Normal human mammary epithelial cells (184 and HMEC) |
Concentration: |
1 μM |
Incubation Time: |
11 hours |
Result: |
Inhibited H-thymidine uptake in normal breast cells (184 and HMEC) by 40 %. |
Cell Cycle Analysis
Cell Line: |
Normal human mammary epithelial cells (184 and HMEC) |
Concentration: |
1 μM |
Incubation Time: |
5 days |
Result: |
Increased the proportion of cells in G0/G1 phase and decreased the proportion of cells in S phase. |
Western Blot Analysis
Cell Line: |
184 cells |
Concentration: |
1 μM |
Incubation Time: |
24 hours, 48 hours, 72 hours |
Result: |
Induced Rb hypophosphorylation and decrease CDK2 kinase activity. |