Muscular interleukin-6 differentially regulates skeletal muscle adaptation to high-fat diet in a sex-dependent manner

Joana Guerra, Beatriz Ferrer, Mercedes Giralt, Gemma Comes, Javier Carrasco, Amalia Molinero, Antonio L. Serrano, Juan Hidalgo

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Interleukin-6 (IL-6) is now known to be not only a major cytokine controlling the immune system but also basic physiological variables such as body weight and metabolism. We recently reported that muscle-specific interleukin-6 deletion influences body weight and body fat in a sex-dependent manner in mice. When compared with littermate floxed controls, males gained less weight whereas females gained more weight after a 12-week high-fat diet treatment (HFD). We herewith report gender-differences of HFD treatment on fast and slow skeletal muscle in muscle-specific IL-6 deficient mice. While gross muscle architecture was normal, in males, HFD resulted in an increased proportion of medium-large size myofibers which was prevented by muscle IL-6 deletion. No modifications of fiber size were observed in females. HFD induced a fiber-type switching in tibialis muscle, increasing the proportion of fast-oxidative fibers and decreasing the fast-glycolytic fibers in female mice which were dependent on muscle IL-6. No changes of fiber types were detected in males. Finally, HFD was associated with increased collagen deposition in both sexes and muscle types. However, this effect was only associated to the presence of muscular IL-6 only on the slow soleus muscle in males. The results demonstrate sex-dependent effects of both HFD and muscle IL-6 deficiency in skeletal muscle.

Original languageEnglish (US)
Pages (from-to)145-151
Number of pages7
JournalCytokine
Volume74
Issue number1
DOIs
StatePublished - Jul 1 2015

Fingerprint

High Fat Diet
Nutrition
Muscle
Interleukin-6
Skeletal Muscle
Fats
Muscles
Fibers
Body Weight
Weights and Measures
Adipose Tissue
Immune System
Immune system
Collagen
Metabolism
Cytokines

Keywords

  • High-fat diet
  • IL-6
  • Muscle

ASJC Scopus subject areas

  • Immunology and Allergy
  • Immunology
  • Biochemistry
  • Hematology
  • Molecular Biology

Cite this

Muscular interleukin-6 differentially regulates skeletal muscle adaptation to high-fat diet in a sex-dependent manner. / Guerra, Joana; Ferrer, Beatriz; Giralt, Mercedes; Comes, Gemma; Carrasco, Javier; Molinero, Amalia; Serrano, Antonio L.; Hidalgo, Juan.

In: Cytokine, Vol. 74, No. 1, 01.07.2015, p. 145-151.

Research output: Contribution to journalArticle

Guerra, J, Ferrer, B, Giralt, M, Comes, G, Carrasco, J, Molinero, A, Serrano, AL & Hidalgo, J 2015, 'Muscular interleukin-6 differentially regulates skeletal muscle adaptation to high-fat diet in a sex-dependent manner', Cytokine, vol. 74, no. 1, pp. 145-151. https://doi.org/10.1016/j.cyto.2015.04.018
Guerra, Joana ; Ferrer, Beatriz ; Giralt, Mercedes ; Comes, Gemma ; Carrasco, Javier ; Molinero, Amalia ; Serrano, Antonio L. ; Hidalgo, Juan. / Muscular interleukin-6 differentially regulates skeletal muscle adaptation to high-fat diet in a sex-dependent manner. In: Cytokine. 2015 ; Vol. 74, No. 1. pp. 145-151.
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