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Review
Programs for Cell Death: Apoptosis is Only One Way to Go
Michael Blank and Yosef Shiloh
volume 6 | issue 6
15 March 2007Pages: 686 - 695
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Cell death programs are major players in tissue homeostasis, development and cellular stress responses. A prominent cause of malignant transformation is the cumulative genetic alterations in pathways that regulate cellular growth and death. The processes that govern cell death following genotoxic stress are a major focus of basic research and are also very relevant to translational research in clinical oncology: understanding cell death following cancer therapy is essential for designing new treatment modalities. Cell death is usually, and sometimes automatically, linked with one of its major programs, apoptosis. Recent advances have led, however, to the emergence of additional, non-apoptotic cell death pathways, each with its triggers and readouts. Genotoxic stress appears to induce several cell death pathways, only part of which fall within the classical definition of apoptosis. Accordingly, solid tumor cells that are refractive to apoptosis were shown to die via non-apoptotic mechanisms. Recently we demonstrated that mitotic cell death induced by DNA damage in cells with defective G2/M checkpoint is mechanistically distinct from apoptosis. This review outlines recent advances in the understanding of molecular networks operative in apoptotic and non-apoptotic cell death mechanisms and their cross-talks.
Authors
Michael Blank
Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel
Yosef Shiloh
Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel
We now provide open access to journal articles published online for one year or more. This article may be downloaded at the following link:
Download PDF If the document does not open, please right-click on the link (control-click on a Macintosh) and select the option to save the file to disk.