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Article Dans Une Revue Biochimica et Biophysica Acta - Molecular Basis of Disease Année : 2009

Mitochondrial and apoptotic neuronal death signaling pathways in cerebral ischemia

Résumé

Mitochondria play important roles as the powerhouse of the cell. After cerebral ischemia, mitochondria overproduce reactive oxygen species (ROS), which have been thoroughly studied with the use of superoxide dismutase transgenic or knockout animals. ROS directly damage lipids, proteins, and nucleic acids in the cell. Moreover, ROS activate various molecular signaling pathways. Apoptosis-related signals return to mitochondria, then mitochondria induce cell death through the release of pro-apoptotic proteins such as cytochrome or apoptosis-inducing factor. Although the mechanisms of cell death after cerebral ischemia remain unclear, mitochondria obviously play a role by activating signaling pathways through ROS production and by regulating mitochondria-dependent apoptosis pathways.
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hal-00562933 , version 1 (04-02-2011)

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Kuniyasu Niizuma, Hideyuki Yoshioka, Hai Chen, Gab Seok Kim, Joo Eun Jung, et al.. Mitochondrial and apoptotic neuronal death signaling pathways in cerebral ischemia. Biochimica et Biophysica Acta - Molecular Basis of Disease, 2009, 1802 (1), pp.92. ⟨10.1016/j.bbadis.2009.09.002⟩. ⟨hal-00562933⟩

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