alexa Apoptotic cell death and CPP32-like activation induced by thapsigargin and their prevention by nerve growth factor in PC12 cells.
Pharmaceutical Sciences

Pharmaceutical Sciences

Clinical Pharmacology & Biopharmaceutics

Author(s): Takadera T, Ohyashiki T

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Abstract Thapsigargin, an endoplasmic reticular Ca2+-ATPase inhibitor, induced apoptotic cell death (chromatin condensation and DNA fragmentation) accompanied by the activation of CPP32-like protease, a member of the interleukin-1beta converting enzyme protease (ICE) family, but not the activation of ICE-like protease. Nerve growth factor (NGF) completely inhibited the cell death and CPP32-like activation induced by thapsigargin while Ac-Asp-Glu-Val-Asp-CHO, an inhibitor of CPP32-like protease, reduced the cell death. PD98059, a specific inhibitor of Map kinase kinase, did not reduce the protective effect of NGF on thapsigargin-induced cell death. These results suggest that calcium ion-induced apoptotic cell death was mediated by CPP32-like, but not ICE-like, protease and was regulated by a neurotrophic factor possibly, through the Map kinase cascade independent pathway.
This article was published in Biochim Biophys Acta and referenced in Clinical Pharmacology & Biopharmaceutics

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