Roles of oxidative stress, apoptosis, PGC-1 and mitochondrial biogenesis in cerebral ischemia

Shang Der Chen, Ding I. Yang, Tsu Kung Lin, Fu Zen Shaw, Chia Wei Liou, Yao Chung Chuang

Research output: Contribution to journalReview article

171 Citations (Scopus)

Abstract

The primary physiological function of mitochondria is to generate adenosine triphosphate through oxidative phosphorylation via the electron transport chain. Overproduction of reactive oxygen species (ROS) as byproducts generated from mitochondria have been implicated in acute brain injuries such as stroke from cerebral ischemia. It was well-documented that mitochondria-dependent apoptotic pathway involves pro- and anti-apoptotic protein binding, release of cytochrome c, leading ultimately to neuronal death. On the other hand, mitochondria also play a role to counteract the detrimental effects elicited by excessive oxidative stress. Recent studies have revealed that oxidative stress and the redox state of ischemic neurons are also implicated in the signaling pathway that involves peroxisome proliferative activated receptor-γ (PPARγ) co-activator 1α (PGC1 α). PGC1-α is a master regulator of ROS scavenging enzymes including manganese superoxide dismutase 2 and the uncoupling protein 2, both are mitochondrial proteins, and maycontribute to neuronal survival. PGC1-α is also involved in mitochondrial biogenesis that is vital for cell survival. Experimental evidence supports the roles of mitochondrial dysfunction and oxidative stress as determinants of neuronal death as well as endogenous protective mechanisms after stroke. This review aims to summarize the current knowledge focusing on the molecular mechanisms underlying cerebral ischemia involving ROS, mitochondrial dysfunction, apoptosis, mitochondrial proteins capable of ROS scavenging, and mitochondrial biogenesis.

Original languageEnglish
Pages (from-to)7199-7215
Number of pages17
JournalInternational journal of molecular sciences
Volume12
Issue number10
DOIs
Publication statusPublished - 2011 Oct 1

Fingerprint

biological evolution
ischemia
Mitochondria
Oxidative stress
mitochondria
apoptosis
Organelle Biogenesis
Cell death
Brain Ischemia
Reactive Oxygen Species
Oxidative Stress
Apoptosis
proteins
Proteins
Oxygen
Mitochondrial Proteins
Scavenging
scavenging
oxygen
strokes

All Science Journal Classification (ASJC) codes

  • Catalysis
  • Molecular Biology
  • Spectroscopy
  • Computer Science Applications
  • Physical and Theoretical Chemistry
  • Organic Chemistry
  • Inorganic Chemistry
  • Psychology(all)

Cite this

Chen, Shang Der ; Yang, Ding I. ; Lin, Tsu Kung ; Shaw, Fu Zen ; Liou, Chia Wei ; Chuang, Yao Chung. / Roles of oxidative stress, apoptosis, PGC-1 and mitochondrial biogenesis in cerebral ischemia. In: International journal of molecular sciences. 2011 ; Vol. 12, No. 10. pp. 7199-7215.
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Roles of oxidative stress, apoptosis, PGC-1 and mitochondrial biogenesis in cerebral ischemia. / Chen, Shang Der; Yang, Ding I.; Lin, Tsu Kung; Shaw, Fu Zen; Liou, Chia Wei; Chuang, Yao Chung.

In: International journal of molecular sciences, Vol. 12, No. 10, 01.10.2011, p. 7199-7215.

Research output: Contribution to journalReview article

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