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Inhibition of caspase activity induces a switch from apoptosis to necrosis

Inhibition of caspase activity induces a switch from apoptosis to necrosis The role of caspases in B lymphocyte cell death was investigated by using two broad spectrum inhibitors of the caspase family, Z‐Asp‐cmk and Z‐VAD‐fmk. They totally prevented spontaneous and drug‐induced apoptosis and inhibited the CPP32/caspase‐3‐like activity exhibited by apoptotic cells. However, the suppression of apoptosis was not associated with a long‐term increase of cell survival, but conversely, with a switch from apoptotic death to the necrotic form. These results strongly suggest that apoptosis and necrosis share common initiation pathways, the final issue being determined by the presence of an active caspase. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Febs Letters Wiley

Inhibition of caspase activity induces a switch from apoptosis to necrosis

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References (29)

Publisher
Wiley
Copyright
© 2015 Federation of European Biochemical Societies
eISSN
1873-3468
DOI
10.1016/S0014-5793(98)00252-X
Publisher site
See Article on Publisher Site

Abstract

The role of caspases in B lymphocyte cell death was investigated by using two broad spectrum inhibitors of the caspase family, Z‐Asp‐cmk and Z‐VAD‐fmk. They totally prevented spontaneous and drug‐induced apoptosis and inhibited the CPP32/caspase‐3‐like activity exhibited by apoptotic cells. However, the suppression of apoptosis was not associated with a long‐term increase of cell survival, but conversely, with a switch from apoptotic death to the necrotic form. These results strongly suggest that apoptosis and necrosis share common initiation pathways, the final issue being determined by the presence of an active caspase.

Journal

Febs LettersWiley

Published: Mar 27, 1998

Keywords: ; ; ; ; ; ; ; ;

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