Correlation between PS externalization and the downstream apoptotic parameters upon drug exposure in pediatric ALL
Drug . | Δψm depolarization . | Caspase-3 activation . | PARP inactivation . |
---|---|---|---|
Prednisolone | |||
Correlation coefficient | .81 | .76 | .76 |
P | <.001 | <.001 | <.001 |
N | 31 | 29 | 29 |
Vincristine | |||
Correlation coefficient | .80 | .56 | .64 |
P | <.001 | <.001 | <.001 |
N | 30 | 32 | 32 |
l-asparaginase | |||
Correlation coefficient | .42 | .49 | .56 |
P | .017 | .006 | .002 |
N | 32 | 30 | 29 |
Daunorubicin | |||
Correlation coefficient | .63 | .50 | .41 |
P | <.001 | .005 | .029 |
N | 29 | 31 | 29 |
Drug . | Δψm depolarization . | Caspase-3 activation . | PARP inactivation . |
---|---|---|---|
Prednisolone | |||
Correlation coefficient | .81 | .76 | .76 |
P | <.001 | <.001 | <.001 |
N | 31 | 29 | 29 |
Vincristine | |||
Correlation coefficient | .80 | .56 | .64 |
P | <.001 | <.001 | <.001 |
N | 30 | 32 | 32 |
l-asparaginase | |||
Correlation coefficient | .42 | .49 | .56 |
P | .017 | .006 | .002 |
N | 32 | 30 | 29 |
Daunorubicin | |||
Correlation coefficient | .63 | .50 | .41 |
P | <.001 | .005 | .029 |
N | 29 | 31 | 29 |
Freshly isolated ALL cells were cultured for 18 hours in the presence of 50 μg/mL vincristine or 2.0 μg/mL daunorubicin or 42 hours in the presence of 250 μg/mL prednisolone or 10 IU/mL l-asparaginase. Drug-induced activation of apoptotic parameters was determined by flow cytometry. Correlation between apoptotic parameters was calculated using the Spearman rank correlation test.