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Nature 410, 33-34 (1 March 2001) | doi:10.1038/35065201

Open Innovation Challenges

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  • Research Fellow

    • Beth Israel Deaconess Medical Center
    • Beth Israel Deaconess Medical Center, 330 Brookline Avenue, Boston, MA 02215
  • Gastroenterologist

    • Wayne State University
    • Detroit, Michigan, USA

Apoptosis: Baiting death inhibitors

Donald W. Nicholson

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Enzymes called caspases that start the process of programmed cell death can be dangerous if activated at the wrong time. A feat of self-restraint keeps one such caspase under control.

Most of the cell death that takes place in mammals occurs by apoptosis — the result of a dedicated biochemical pathway. At the heart of this pathway lies a family of protein-cleaving enzymes, the caspases, which normally lie dormant in healthy cells and become activated in response to diverse stimuli when cell death is required.