Abstract

To assess the potential involvement of the caspase family in the IL-3-dependent murine myeloid leukemic cell line 32D, we studied the effect of bcl-2, crmA and three synthetic caspase inhibitors on apoptosis induced by chemotherapy or IL-3 withdrawal. Apoptosis induced by IL-3 deprivation or by ActD appears to be mediated by a crmA-insensitive pathway. Cell death by IL-3 withdrawal is inhibited by the caspase-inhibitor ZVAD-fmk, but not DEVD-fmk or YVAD-cmk. In contrast, DEVD-fmk as well as ZVAD-fmk protect 32D cells from ActD-induced apoptosis. These results indicate that different caspases are involved in apoptosis induced by growth factor withdrawal and by chemotherapy.

Full Text
Published version (Free)

Talk to us

Join us for a 30 min session where you can share your feedback and ask us any queries you have

Schedule a call