Cited by 393Circadian rhythm and melatoninMitochondrial Function and Pathologymelanin and skin pigmentation

Mitochondria: Central Organelles for Melatonin′s Antioxidant and Anti-Aging Actions

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Reiter, Russel, Tan, Dun, Rosales-Corral, Sergio, Galano, Annia, Zhou, Xin, Xu, Bing·2018·Molecules

Abstract

Melatonin, along with its metabolites, have long been known to significantly reduce the oxidative stress burden of aging cells or cells exposed to toxins. Oxidative damage is a result of free radicals produced in cells, especially in mitochondria. When measured, melatonin, a potent antioxidant, was found to be in higher concentrations in mitochondria than in other organelles or subcellular locations. Recent evidence indicates that mitochondrial membranes possess transporters that aid in the rapid uptake of melatonin by these organelles against a gradient. Moreover, we predicted several years ago that, because of their origin from melatonin-producing bacteria, mitochondria likely also synthesize melatonin. Data accumulated within the last year supports this prediction. A high content of melatonin in mitochondria would be fortuitous, since these organelles produce an abundance of free radicals. Thus, melatonin is optimally positioned to scavenge the radicals and reduce the degree of oxidative damage. In light of the “free radical theory of aging”, including all of its iterations, high melatonin levels in mitochondria would be expected to protect against age-related organismal decline. Also, there are many age-associated diseases that have, as a contributing factor, free radical damage. These multiple diseases may likely be deferred in their onset or progression if mitochondrial levels of melatonin can be maintained into advanced age.

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Authors
Reiter, R., Tan, D., Rosales-Corral, S., Galano, A., Zhou, X., & Xu, B.
Affiliations
  • The University of Texas at San Antonio Health Science Center (US)
  • Centro de Investigacion Biomedica de Occidente, Instituo Mexicana del Seguro Social, Guadalajara 44346, Mexico
  • Universidad Autónoma Metropolitana (MX)
Corresponding author
Reiter, Russel
Venue
Molecules
Publisher
MDPI AG
Published
2018-02-24
Volume
23
Issue
2
Pages
509
ISSN
1420-3049 (ISSN-L)
OpenAlex
W2790776869
Cited by
393
References
221
Citations by year
2026: 24 · 2025: 25 · 2024: 40 · 2023: 87 · 2022: 54 · 2021: 58 · 2020: 52 · 2019: 25 · 2018: 25 · 2016: 1
FWCI
5.59
Type
journal article
Language
en
Open access
Locations
  • Molecules (publishedVersion, cc-by)
  • Europe PMC (PubMed Central) (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Topics
  • Life Sciences › Neuroscience › Endocrine and Autonomic Systems › Circadian rhythm and melatonin
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Mitochondrial Function and Pathology
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cell Biology › melanin and skin pigmentation
Keywords
melatonin, mitochondria, oxidative stress, free radicals, antioxidant activity, anti-aging, free radical theory of aging, age-related diseases, mitochondrial membrane
MeSH terms
Aging, Animals, Antioxidants, Free Radicals, Humans, Melatonin, Mitochondria, Organ Specificity, Oxidation-Reduction, Oxidative Phosphorylation, Reactive Oxygen Species, Oxidative Stress

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