PIM-447 (0.05-10 µM; 24, 48 and 72 hours) has inhibitory effects in MM cells, it against sensitive cell lines with IC50 values ranging from 0.2 to 3.3 µM (MM1S, MM1R, RPMI-8226, MM144, U266 and NCI-H929) and less sensitive cell lines with IC50 values at 48 h >7 µM (OPM-2, RPMI-LR5, U266-Dox4 and U266-LR7).
PIM-447 (0.1-10 µM; 24, 48 and 72 hours) does not induce important levels of apoptosis, when PIM447 at 5 µM, it substantially increases annexin-V levels (about 30%) in sensitive cell lines(MM1S, NCI-H929 and RPMI-8226). When PIM447 at 10 µM, it induces apoptosis in all the cell lines but to a lesser extent in OPM-2 and RPMI-LR5.
PIM447 promotes the cleavage of initiator caspases, such as caspases 8 and 9, and increases the cleavage of the effector caspases 3 and 7, together with PARP cleavage in MM1S,RPMI-8226 and NCI-H929 cells.
PIM447 (0.1-1 µM) increases the percentage of cells in the G0/G1 phase and decreases the proliferative phases (S and G2/M) of the cell cycle. The effects at low concentrations (0.1-1 µM) were more pronounced in MM1S cells than in OPM-2.
Cell Viability Assay
Cell Line: |
Sensitive MM cell lines: MM1S, MM1R, RPMI-8226, MM144, U266 and NCI-H929 cells
Less sensitive MM cell lines: OPM-2,RPMI-LR5, U266-Dox4 and U266-LR7cells |
Concentration: |
0.05-10 µM |
Incubation Time: |
24, 48 and 72 hours |
Result: |
Was cytotoxic for MM cells (PIM kinases highly expressed).
|
Apoptosis Analysis
Cell Line: |
Sensitive MM cell lines: MM1S, NCI-H929 and RPMI-8226 cells
Less sensitive MM cell lines: OPM-2 and RPMI-LR5 cells |
Concentration: |
0.05-10 µM |
Incubation Time: |
24, 48 and 72 hours |
Result: |
Induced cell apoptosis at higer doses, had no effects at 0.1-1 uM.
|
Western Blot Analysis
Cell Line: |
Sensitive MM cell lines: MM1S, NCI-H929 and RPMI-8226 cells
|
Concentration: |
0.05-10 µM |
Incubation Time: |
24, 48 hours |
Result: |
Increased the cleavage of the effector caspases 3 and 7, and the PARP cleavage.
|
Cell Cycle Analysis
Cell Line: |
MM1S, OPM-2 cells |
Concentration: |
0.1, 0.5 or 1 µM |
Incubation Time: |
48 hours |
Result: |
Increased the cleavage of the effector caspases 3 and 7, and the PARP cleavage.
|