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Targeted blocking of cell death prevents fatal condition septic shock
Date:12/27/2011

Ghent, Belgium 27 December 2011 - Researchers of VIB and UGent have discovered a new approach to preventing septic shock, an often fatal extreme inflammatory reaction of the body. It is the most frequent cause of death at intensive care departments in hospitals. In sepsis, acute inflammation is attended by low blood pressure and blood clots, causing the organs to stop working. Only recently, the Brazilian football legend Socrates, died of the consequences of this condition. In a new study in the top journal Immunity, Peter Vandenabeele and colleagues of VIB-UGent described how blocking a particular form of cell death (necroptosis) fully protects mice against this fatal inflammation.

"This research opens up new perspectives for the treatment of fatal inflammatory diseases such as sepsis," says researcher Peter Vandenabeele of VIB and UGent. "By blocking necroptosis, we have found a possibly new target for a therapy."

Sepsis and SIRS

The Ghent scientists studied the Systemic Inflammatory Response Syndrome (SIRS). This is a severe inflammatory reaction affecting the entire body. It may be caused by an infection, such as sepsis, or by physical injury such as severe burns or a serious road accident.

Role of TNF in SIRS

The cytokine tumor necrosis factor (TNF) plays a crucial role in the occurrence of SIRS. The presence of TNF may trigger the cells to cause inflammation and programmed cell death. Inflammation is a necessary response in the body generated, among other things, to prevent or restore damage when injury and infections have been sustained. Programmed cell death can occur in two ways: via apoptosis or via necroptosis. The difference between the two forms of cell death lies among other things in communication with our immune system. Necroptosis usually provokes a strong reaction by the immune system whereas apoptosis proceeds unnoticed.

RIPK: potential therapeutic target for treatm
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Contact: Joris Gansemans
joris.gansemans@vib.be
VIB (the Flanders Institute for Biotechnology)
Source:Eurekalert

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