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Transforming Growth Factor-Beta in Skeletal Muscle Wasting.

Gordon L Klein1

  • 1Department of Orthopaedic Surgery, University of Texas Medical Branch, Galveston, TX 77555-0165, USA.

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|February 15, 2022
PubMed
Summary
This summary is machine-generated.

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.

Keywords:
metastatic cancerpediatric burnsreactive oxygen speciesskeletal muscle wastingtransforming growth factor-beta

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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.