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Transforming Growth Factor-Beta in Skeletal Muscle Wasting
1Department of Orthopaedic Surgery, University of Texas Medical Branch, Galveston, TX 77555-0165, USA.
International Journal of Molecular Sciences
|February 15, 2022
Summary
Inflammation causes bone resorption and releases transforming growth factor-beta (TGF-β), impacting muscle mass. Anti-resorptive drugs may prevent muscle wasting by inhibiting this process.
Area of Science:
- Biochemistry
- Bone Biology
- Muscle Physiology
Background:
- Transforming growth factor-beta (TGF-β) is a multifunctional molecule found in various tissues.
- Bone resorption, particularly in conditions like cancer metastasis and burns, is linked to TGF-β release.
- Reactive oxygen species may mediate TGF-β's effects on muscle protein balance.
Purpose of the Study:
- To investigate the role of TGF-β release from bone in muscle wasting.
- To explore whether immobilization contributes to TGF-β release and subsequent muscle wasting.
- To assess the therapeutic potential of anti-resorptive agents in preventing muscle wasting.
Main Methods:
- Analysis of data from mice and human cancer patients with bony metastases.
- Examination of pediatric burn patient data.
- Evaluation of the effects of anti-resorptive therapy.
Main Results:
- Inflammation-induced bone resorption releases TGF-β, affecting muscle protein balance.
- Anti-resorptive therapy successfully prevented muscle wasting in cancer and burn patients.
- TGF-β liberation from bone may be a mechanism controlling muscle mass.
Conclusions:
- TGF-β release from bone during resorption may contribute to muscle wasting.
- Anti-resorptive drugs show promise for treating muscle wasting associated with bone resorption.
- Further research is needed to confirm the role of TGF-β in immobilization-induced muscle wasting and other resorptive conditions.
Keywords:
metastatic cancerpediatric burnsreactive oxygen speciesskeletal muscle wastingtransforming growth factor-betaMore Related Videos
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