Superoxide Dismutase 1 Loss Disturbs Intracellular Redox Signaling, Resulting in Global Age-Related Pathological Changes Academic Article uri icon

abstract

  • Aging is characterized by increased oxidative stress, chronic inflammation, and organ dysfunction, which occur in a progressive and irreversible manner. Superoxide dismutase (SOD) serves as a major antioxidant and neutralizes superoxide radicals throughout the body.In vivostudies have demonstrated that copper/zinc superoxide dismutase-deficient (Sod1−/−) mice show various aging-like pathologies, accompanied by augmentation of oxidative damage in organs. We found that antioxidant treatment significantly attenuated the age-related tissue changes and oxidative damage-associated p53 upregulation inSod1−/−mice. This review will focus on various age-related pathologies caused by the loss ofSod1and will discuss the molecular mechanisms underlying the pathogenesis inSod1−/−mice.

authors

  • Watanabe, Kenji
  • Shibuya, Shuichi
  • Ozawa, Yusuke
  • Nojiri, Hidetoshi
  • Izuo, Naotaka
  • Yokote, Koutaro
  • Shimizu, Takahiko

publication date

  • 2014