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Polyphenol Stilbenes: Molecular Mechanisms of Defence against Oxidative Stress and Aging-Related Diseases

Mika Reinisalo1, Anna Kårlund2, Ali Koskela3

  • 1Department of Ophthalmology, University of Eastern Finland, P.O. Box 1627, 70211 Kuopio, Finland.

Oxidative Medicine and Cellular Longevity
|July 17, 2015
PubMed

Insights

Stilbenes, natural compounds found in fruits and bark, show promise in combating aging-related diseases by reducing oxidative stress. They activate cellular defense mechanisms, offering potential therapeutic benefits for conditions like AMD and Alzheimer

Area of Science:

  • Biochemistry
  • Molecular Biology
  • Gerontology

Background:

  • Oxidative stress and inflammation are key drivers of aging-related diseases, including obesity, type 2 diabetes, AMD, and AD.
  • Aging cells exhibit reduced antioxidant capacity and impaired repair systems, increasing susceptibility to damage.
  • Stilbene compounds, natural phenolics from sources like grapes and berries, demonstrate protective effects against aging-related diseases.

Purpose of the Study:

  • To review and clarify the molecular mechanisms behind stilbene-mediated protection against oxidative stress.
  • To summarize the impact of stilbenes on Nrf2-mediated cellular defense pathways.
  • To discuss the therapeutic potential of stilbenes for common aging-related diseases.

Main Methods:

  • Literature review of recent studies on stilbenes and oxidative stress.
  • Analysis of molecular mechanisms involving Nrf2/Keap1 signaling and autophagy.
  • Synthesis of data on stilbene efficacy in aging-related disease models.

Main Results:

  • Stilbenes modulate the Nrf2 pathway, enhancing cellular antioxidant defenses.
  • SQSTM1/p62 protein plays a role in Nrf2/Keap1 signaling and autophagy, influenced by stilbenes.
  • Evidence suggests stilbenes can mitigate cellular damage associated with aging.

Conclusions:

  • Stilbenes offer a promising therapeutic strategy for aging-related diseases.
  • Understanding stilbene's molecular mechanisms, particularly Nrf2 activation, is crucial for therapeutic development.
  • Further research into stilbene compounds could lead to novel treatments for oxidative stress-related conditions.

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