Cited by 82Exercise and Physiological ResponsesCardiovascular and exercise physiologyMuscle Physiology and Disorders

Chronic exercise decreases cytokine production in healthy rat skeletal muscle

Lira, Fábio S., Koyama, Cristiane H., Yamashita, Alex S., Rosa, José C., Zanchi, Nelo E., Batista, Miguel L., Seelaender, Marília C.·2009·Cell Biochemistry and Function

Abstract

Skeletal muscle is the source of pro- and anti-inflammatory cytokines, and recently, it has been recognized as an important source of interleukin-6 (IL-6). Acute physical exercise is known to induce a pro-inflammatory cytokine profile in the plasma. However, the effect of chronic physical exercise in the production of pro- and anti-inflammatory cytokines by the skeletal muscle has never been examined. We assessed IL-6, TNF-alpha, IL-1beta and IL-10 levels in the skeletal muscle of rats submitted to endurance training. Animals were randomly assigned to either a sedentary group (S, n = 7) or an endurance exercise trained group (T, n = 8). Trained rats ran on a treadmill for 5 days week(-1) for 8 weeks (60% VO(2max)). Detection of IL-6, TNF-alpha, IL-1beta and IL-10 protein expression was carried out by ELISA. We found decreased expression of IL-1beta, IL-6, TNF-alpha and IL-10 (28%, 27%, 32% and 37%, respectively, p < 0.05) in the extensor digital longus (EDL) from T, when compared with S. In the soleus, IL-1beta, TNF-alpha and IL-10 protein levels were similarly decreased (34%, 42% and 50%, respectively, p < 0.05) in T in relation to S, while IL-6 expression was not affected by the training protocol. In conclusion, exercise training induced decreased cytokine protein expression in the skeletal muscle. These data show that in healthy rats, 8-week moderate-intensity aerobic training down regulates skeletal muscle production of cytokines involved in the onset, maintenance and regulation of inflammation, and that the response is heterogeneous according to fibre composition.

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Crossref · 10.1002/cbf.1594

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Authors
Lira, F. S., Koyama, C. H., Yamashita, A. S., Rosa, J. C., Zanchi, N. E., Batista, M. L., & Seelaender, M. C.
Affiliations
Universidade de São Paulo (BR)
Corresponding author
Seelaender, Marília C.
Venue
Cell Biochemistry and Function
Publisher
Wiley
Published
2009-08-13
Volume
27
Issue
7
Pages
458-461
ISSN
  • 0263-6484 (ISSN-L)
  • 1099-0844
OpenAlex
W2038134522
Cited by
82
References
29
Citations by year
2026: 2 · 2025: 3 · 2023: 5 · 2022: 2 · 2021: 7 · 2020: 3 · 2019: 2 · 2018: 9 · 2017: 2 · 2016: 8 · 2015: 6 · 2014: 5 · 2013: 4 · 2012: 9
FWCI
8.15
Type
journal article
Language
en
Open access
closed
Locations
  • Cell Biochemistry and Function (publishedVersion)
  • PubMed (publishedVersion)
  • Scientific Electronic Library Online (São Paulo Research Foundation, Latin American and Caribbean Center on Health Sciences Information, Conselho Nacional de Desenvolvimento Científico e Tecnológico) (publishedVersion)
Topics
  • Health Sciences › Medicine › Rehabilitation › Exercise and Physiological Responses
  • Health Sciences › Medicine › Complementary and alternative medicine › Cardiovascular and exercise physiology
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Muscle Physiology and Disorders
Keywords
exercise training, skeletal muscle, cytokines, interleukin-6, TNF-α, IL-1β, IL-10, endurance training, muscle inflammation, muscle fiber composition, extensor digitorum longus, soleus muscle, aerobic exercise
MeSH terms
Animals, Health, Male, Physical Conditioning, Animal, Cytokines, Rats, Wistar, Muscle, Skeletal, Rats

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