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Related Experiment Video

Updated: May 24, 2025

Experimental Demyelination and Remyelination of Murine Spinal Cord by Focal Injection of Lysolecithin
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Leptin and Leptin Signaling in Multiple Sclerosis: A Narrative Review.

Juan Antonio Flores-Cordero1, Amalia Aranaz-Murillo1, Teresa Vilariño-García2

  • 1Department of Medical Biochemistry and Molecular Biology, and Immunology, Medical School, University of Seville, Seville, Spain.

Neuromolecular Medicine
|February 28, 2025
PubMed
Summary

Obesity, characterized by chronic inflammation, is linked to autoimmune diseases like multiple sclerosis. This review explores how obesity and the adipokine leptin influence immune responses in multiple sclerosis development.

Keywords:
InflammationLeptinMultiple SclerosisObesity

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Author Spotlight: Unveiling the Pathway Linking Obesity to Autoimmune Inflammation in Multiple Sclerosis
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Area of Science:

  • Immunology
  • Endocrinology
  • Neurology

Background:

  • Obesity is recognized as a chronic inflammatory condition.
  • This inflammatory state is associated with various autoimmune diseases, including multiple sclerosis.
  • Adipokines, mediators from adipose tissue, significantly modulate immune responses.

Purpose of the Study:

  • To review the existing literature on the role of obesity in multiple sclerosis.
  • To elucidate the specific impact of leptin, a pro-inflammatory adipokine, on immune system regulation in multiple sclerosis.
  • To update the understanding of the relationship between obesity, leptin, and multiple sclerosis.

Main Methods:

  • Literature review of scientific articles.
  • Analysis of studies investigating adipokines and immune cell responses.
  • Examination of data on leptin levels in multiple sclerosis patients.

Main Results:

  • Obesity, particularly in adolescence, is implicated as a key factor in multiple sclerosis development.
  • Leptin, elevated in multiple sclerosis patients, promotes pro-inflammatory responses by enhancing Th1/Th17 cells and M1 macrophages, while suppressing regulatory T cells and Th2 responses.
  • Circulating leptin levels are elevated in individuals with multiple sclerosis.

Conclusions:

  • Obesity and its associated adipokine, leptin, play a significant role in the immunopathogenesis of multiple sclerosis.
  • Leptin's pro-inflammatory signaling contributes to the immune dysregulation observed in multiple sclerosis.
  • Further research into the obesity-leptin-multiple sclerosis axis is warranted.