Differential activation of phospholipases during necrosis or apoptosis: A comparative study using tumor necrosis factor and anti-Fas antibodies
✍ Scribed by Dirk De Valck; Dominique Vercammen; Walter Fiers; Rudi Beyaert
- Publisher
- John Wiley and Sons
- Year
- 1998
- Tongue
- English
- Weight
- 111 KB
- Volume
- 71
- Category
- Article
- ISSN
- 0730-2312
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✦ Synopsis
Phospholipases generate important secondary messengers in several cellular processes, including cell death. Tumor necrosis factor (TNF) can induce two distinct modes of cell death, viz. necrosis and apoptosis. Here we demonstrate that phospholipase D (PLD) and cytosolic phospholipase A 2 (cPLA 2 ) are differentially activated during TNF-induced necrosis or apoptosis. Moreover, a comparative study using TNF and anti-Fas antibodies as cell death stimuli showed that PLD and cPLA 2 are specifically activated by TNF. These results indicate that both the mode of cell death and the type of death stimulus determine the potential role of phospholipases as generators of secondary messengers.
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