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FEBS Lett. 2008 Aug 20;582(19):2882-6. doi: 10.1016/j.febslet.2008.07.023. Epub 2008 Jul 24.

Loss of peroxisome function triggers necrosis.

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  • 1Institute of Molecular Biosciences (IMB), University of Graz, Austria.


Disturbance of peroxisome function can lead to various degenerative diseases during ageing. Here, we show that in yeast deletion of PEX6, encoding a protein involved in a key step of peroxisomal protein import, results in an increased accumulation of reactive oxygen species and an enhanced loss of viability upon acetic acid treatment and during early stationary phase. Cell death of ageing-like yeast cells lacking PEX6 does not depend on the apoptotic key players Yca1p and Aif1p, but instead shows markers of necrosis. Thus, we conclude that loss of peroxisomal function leads to a form of necrotic cell death.

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