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Updated: Aug 14, 2026

Identification of Intracellular Signaling Events Induced in Viable Cells by Interaction with Neighboring Cells Undergoing Apoptotic Cell Death
Published on: December 27, 2016
Differential activation of phospholipases during necrosis or apoptosis: a comparative study using tumor necrosis
D De Valck1, D Vercammen, W Fiers
1Department of Molecular Biology, Flanders Interuniversity Institute for Biotechnology and University of Gent, Belgium.
Abstract:
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 A2 (cPLA2) 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 cPLA2 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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