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Related Concept Videos

Mitochondria01:37

Mitochondria

Mitochondria are eukaryotic cellular organelles that are known to produce energy through a process called oxidative phosphorylation. Besides their primary function, mitochondria are involved in various cellular processes, including cell growth, differentiation, signaling, metabolism, and senescence. Age-related changes cause a decline in mitochondrial quality and integrity due to increased mitochondrial mutations and oxidative damage. Thus, aging can severely impact mitochondrial functions,...
Electron Transport Chain: Complex I and II01:46

Electron Transport Chain: Complex I and II

The mitochondrial electron transport chain (ETC) is the main energy generation system in the eukaryotic cells. However, mitochondria also produce cytotoxic reactive oxygen species (ROS) due to the large electron flow during oxidative phosphorylation. While Complex I is one of the primary sources of superoxide radicals, ROS production by Complex II is uncommon and may only be observed in cancer cells with mutated complexes.
ROS generation is regulated and maintained at moderate levels necessary...

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Related Experiment Video

Updated: Jun 18, 2026

A Quantitative Measurement of Reactive Oxygen Species and Senescence-associated Secretory Phenotype in Normal Human Fibroblasts During Oncogene-induced Senescence
13:59

A Quantitative Measurement of Reactive Oxygen Species and Senescence-associated Secretory Phenotype in Normal Human Fibroblasts During Oncogene-induced Senescence

Published on: August 12, 2018

2-Methoxystypandrone from Polygonum cuspidatum Rejuvenates Senescence by Reducing Mitochondrial ROS.

Jee Hee Yoon1, Ye Hyang Kim2, Minseon Kim1

  • 1Division of Life Sciences, College of Life Sciences and Bioengineering, Incheon National University, Incheon 22012, Republic of Korea.

Antioxidants (Basel, Switzerland)
|March 28, 2026
PubMed
Summary

Researchers identified 2-methoxystypandrone (2-MS) from Polygonum cuspidatum as a key compound that reverses skin aging. 2-MS reduces mitochondrial reactive oxygen species (ROS) to rejuvenate cells.

Keywords:
2-methoxystypandronemitochondrial ROSsenescence ameliorationskin aging

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Area of Science:

  • Biochemistry
  • Cell Biology
  • Dermatology

Background:

  • Oxidative stress from reactive oxygen species (ROS) significantly contributes to cellular senescence.
  • Current interventions to reverse senescence by mitigating ROS are limited.
  • Polygonum cuspidatum extracts show promise in suppressing mitochondrial ROS, but the active compound is unknown.

Purpose of the Study:

  • To identify the specific bioactive compound in P. cuspidatum responsible for reducing mitochondrial ROS.
  • To elucidate the mechanism by which this compound rejuvenates senescence.
  • To evaluate its potential as an anti-aging therapeutic or cosmetic agent.

Main Methods:

  • Screening of P. cuspidatum bioactive components for mitochondrial ROS reduction.
  • Investigating the effects of the identified compound on oxidative phosphorylation (OXPHOS) efficiency and ROS generation.
  • Assessing the compound's impact on senescence-associated phenotypes in a skin cell model.

Main Results:

  • 2-methoxystypandrone (2-MS) was identified as the most potent compound for decreasing mitochondrial ROS.
  • 2-MS enhanced OXPHOS efficiency, leading to reduced ROS production from respiration.
  • 2-MS treatment reversed senescence phenotypes by suppressing ROS-driven melanogenesis and inflammation.

Conclusions:

  • 2-MS is the key active ingredient in P. cuspidatum responsible for anti-aging effects via mitochondrial ROS reduction.
  • 2-MS rejuvenates senescence by improving mitochondrial function and mitigating ROS.
  • 2-MS shows significant potential as a therapeutic and cosmetic candidate for age-related skin conditions.