Cited by 124Circadian rhythm and melatoninMetabolism, Diabetes, and CancerPancreatic function and diabetes

Melatonin stimulates glucose transport via insulin receptor substrate‐1/phosphatidylinositol 3‐kinase pathway in C2C12 murine skeletal muscle cells

Ha, Eunyoung, Yim, Sung‐Vin, Chung, Joo‐Ho, Yoon, Kyung‐Sik, Kang, Insug, Cho, Yong Ho, Baik, Hyung Hwan·2006·Journal of Pineal Research

Abstract

Abstract: The prevalence of diabetes has exponentially increased in recent decades due to environmental factors such as nocturnal lifestyle and aging, both of which influence the amount of melatonin produced in the pineal gland. The present study investigated the effect of melatonin on signaling pathways of glucose transport in C 2 C 12 mouse skeletal muscle cells. Intriguingly, treatment of C 2 C 12 cells with melatonin (1 n m) stimulated glucose uptake twofold increase. Melatonin‐stimulated glucose transport was inhibited with co‐treatment with the melatonin receptor antagonist luzindole. Furthermore, treatment of stably over‐expressed melatonin receptor type 2B containing C 2 C 12 myotubes with melatonin amplified glucose transport c. 13‐fold. Melatonin also increased the phosphorylation level of insulin receptor substrate‐1 (IRS‐1) and the activity of phosphoinositide 3‐kinase (PI‐3‐kinase). However, 3′,5′‐cyclic adenosine monophosphate‐activated protein kinase (AMPK), another important glucose transport stimulatory mediator via an insulin‐independent pathway, was not influenced by melatonin treatment. Activity of p38 mitogen‐activated protein kinase (MAPK), a downstream mediator of AMPK, was also not changed by melatonin. In addition, melatonin increased the expression level of forkhead box A2, which was recently discovered to regulate fatty acid oxidation and to be inhibited by insulin. In summary, melatonin stimulates glucose transport to skeletal muscle cells via IRS‐1/PI‐3‐kinase pathway, which implies, at the molecular level, its role in glucose homeostasis and possibly in diabetes. Additionally, exposure to light at night and aging, both of which lower endogenous melatonin levels may contribute to the incidence and/or development of diabetes.

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Crossref · 10.1111/j.1600-079x.2006.00334.x

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Authors
Ha, E., Yim, S., Chung, J., Yoon, K., Kang, I., Cho, Y. H., & Baik, H. H.
Affiliations
Kyung Hee University (KR)
Corresponding author
Baik, Hyung Hwan
Venue
Journal of Pineal Research
Publisher
Wiley
Published
2006-06-28
Volume
41
Issue
1
Pages
67-72
ISSN
  • 0742-3098 (ISSN-L)
  • 1600-079X
OpenAlex
W2085663109
Cited by
124
References
37
Citations by year
2026: 4 · 2025: 4 · 2024: 5 · 2023: 7 · 2022: 5 · 2021: 7 · 2020: 9 · 2019: 6 · 2018: 10 · 2017: 5 · 2016: 6 · 2015: 8 · 2014: 7 · 2013: 13 · 2012: 8
FWCI
1.10
Type
journal article
Language
en
Open access
closed
Locations
  • Journal of Pineal Research (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Neuroscience › Endocrine and Autonomic Systems › Circadian rhythm and melatonin
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Metabolism, Diabetes, and Cancer
  • Health Sciences › Medicine › Surgery › Pancreatic function and diabetes
Keywords
melatonin, glucose transport, IRS-1, phosphatidylinositol 3-kinase, skeletal muscle, C2C12 myotubes, luzindole, AMPK, p38 MAPK, glucose homeostasis, diabetes mellitus, light at night, aging
MeSH terms
Biological Transport, Cell Line, Glucose, Melatonin, Phosphoproteins, Blotting, Western, Muscle, Skeletal, Phosphatidylinositol 3-Kinases, Insulin Receptor Substrate Proteins

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