Differential inhibition of radiation-induced apoptosis Journal Article


Authors: Haimovitz-Friedman, A.; Kolesnick, R. N.; Fuks, Z.
Article Title: Differential inhibition of radiation-induced apoptosis
Abstract: The most common mechanism by which radiation kills cells is the induction of DNA double-strand breaks that results in the loss of cell proliferation. Even though apoptosis is increasingly identified in experimental systems in vitro and in vivo, it is still generally regarded as a rare mode of radiation-induced cell kill with minor relevance for the clinical effects of radiation. This review will focus on pro- and antiapoptotic signaling that affects the apoptotic outcome in irradiated mammalian cells. In particular, we will concentrate on the sphingomyelin/ceramide signal transduction pathway which is involved in initiation of stress-induced apoptosis in a variety of normal and neoplastic cells. We will also discuss the crosstalk between the sphingomyelin/ceramide pathway and the protein kinase C pathway which constitutes an antiapoptotic pathway, and the potential for pharmacological modulation to increase the fraction of apoptotic cells undergoing apoptosis after radiation exposure.
Keywords: signal transduction; conference paper; mammalia; animals; dna damage; cell survival; apoptosis; enzyme activation; radiation injury; radiation exposure; dna strand breakage; fibroblast growth factor 2; double stranded dna; cell damage; irradiation; protein kinase c; cell killing; ceramide; sphingomyelin; basic fibroblast growth factor; humans
Journal Title: Stem Cells
Volume: 15
Issue: Suppl. 1
ISSN: 1066-5099
Publisher: AlphaMed Press  
Date Published: 1997-02-01
Start Page: 43
End Page: 47
Language: English
PUBMED: 9368285
PROVIDER: scopus
DOI: 10.1002/stem.5530150708
DOI/URL:
Notes: Conference Paper -- Export Date: 17 March 2017 -- Source: Scopus
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  1. Zvi Fuks
    427 Fuks
  2. Richard N Kolesnick
    299 Kolesnick