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Thermogenesis is limited by cellular competence.

Aaron C Brown1,2,3

  • 1Center for Molecular Medicine, MaineHealth Institute for Research, Scarborough, ME, United States.

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Thermogenic failure in beige adipocytes, crucial for metabolic health, stems from lost cellular competence, not poor stimulation. Restoring their function requires precise control over cell state and signaling pathways.

Keywords:
agingbeige adipocytescellular competencemitochondrial quality controlobesitythermogenesis

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Area of Science:

  • Cell Biology
  • Metabolic Disease
  • Adipocyte Biology

Background:

  • Beige adipocytes are a therapeutic target for metabolic disease due to their thermogenic capacity.
  • Current thermogenic strategies show limited durability in pathological conditions like obesity and aging.
  • Understanding the molecular basis of thermogenic failure is critical for developing effective treatments.

Purpose of the Study:

  • To argue that thermogenic failure in beige adipocytes results from a loss of cellular competence.
  • To review evidence on cell-intrinsic constraints affecting beige adipocyte function.
  • To propose novel strategies for restoring thermogenic capacity.

Main Methods:

  • Integration of recent discoveries in adipocyte cell biology.
  • Review of emerging evidence on mitochondrial capacity, intracellular signaling, and vesicle trafficking.
  • Application of principles from developmental biology.

Main Results:

  • Thermogenic failure is linked to impaired mitochondrial function, signaling fidelity, and vesicle trafficking.
  • Chronic systemic activation strategies are insufficient due to cell-intrinsic limitations.
  • Obesity and aging exacerbate these constraints on beige adipocyte function.

Conclusions:

  • Restoring beige adipocyte function requires precision control of cell state and signaling.
  • Emerging technologies and human cell models offer new therapeutic opportunities.
  • Therapeutic potential of beige adipocytes depends on maintaining or restoring adaptive plasticity.