Mitochondrial and apoptotic neuronal death signaling pathways in cerebral ischemia

Kuniyasu Niizuma, Hideyuki Yoshioka, Hai Chen, Gab Seok Kim, Joo Eun Jung, Masataka Katsu, Nobuya Okami, Pak H. Chan

Research output: Contribution to journalReview articlepeer-review

234 Citations (Scopus)

Abstract

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 c 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.

Original languageEnglish
Pages (from-to)92-99
Number of pages8
JournalBiochimica et Biophysica Acta - Molecular Basis of Disease
Volume1802
Issue number1
DOIs
Publication statusPublished - 2010 Jan

Keywords

  • Cerebral ischemia
  • Mitochondria
  • Neuronal death
  • PIDD
  • Reactive oxygen species
  • SOD1

ASJC Scopus subject areas

  • Molecular Medicine
  • Molecular Biology

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