| Assay Method Information | |
| | Inhibition Assay |
| Description: | To test the efficacy of caspase-3 inhibitors at the cellular level, the ability of selected compounds to inhibit the proteolytic cleavage of PARP (poly ADP-ribose polymerase) was evaluated in live Hela cells.Briefly, in this assay Hela cells are seeded in 96 well plates and incubated for 4 hours with staurosporine, a well characterized inducer of apoptosis, alone or together with different concentrations of compound (50, 25, 10 and 3 uM). After formaldehyde-based fixation, the cells are stained with a fluorescein-labeled anti-cleaved PARP antibody (Cell signaling, Cat#: 9547) and counterstained with Hoechst33342 (Invitrogen, Cat#: H3570) to mark all nuclei. |
| Affinity data for this assay | |
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