Retinol-binding protein 4 in skeletal and cardiac muscle: molecular mechanisms, clinical implications, and future

Kangzhen Zhang1, Lijuan Wang2, Wei Gao3

  • 1Department of Geriatrics, Nanjing Central Hospital, Nanjing, China.

Insights

Retinol-binding protein 4 (RBP4) is a key adipokine impacting metabolic and cardiovascular diseases by affecting muscle function. Understanding RBP4’s roles may lead to new treatments for these conditions.

Area of Science:

  • Endocrinology
  • Metabolic research
  • Cardiovascular science

Background:

  • Retinol-binding protein 4 (RBP4) is an adipokine implicated in metabolic and cardiovascular disease.
  • Its functions extend beyond retinol transport to influence insulin resistance, inflammation, and muscle physiology.
  • High RBP4 levels correlate with obesity, type 2 diabetes, and cardiovascular conditions.

Purpose of the Study:

  • To review the molecular mechanisms of RBP4 in skeletal and cardiac muscle.
  • To discuss RBP4's clinical significance as a biomarker.
  • To explore RBP4-targeted therapeutic strategies.

Main Methods:

  • Comprehensive literature review.
  • Analysis of molecular pathways.
  • Synthesis of clinical and preclinical data.

Main Results:

  • RBP4 significantly impacts insulin sensitivity, inflammation, lipid metabolism, and mitochondrial function in muscles.
  • Elevated RBP4 is a marker for obesity, type 2 diabetes, and cardiovascular disease risk.
  • RBP4 presents a viable target for therapeutic interventions.

Conclusions:

  • RBP4 plays a crucial role in the pathogenesis of metabolic and cardiovascular diseases.
  • Targeting RBP4 offers potential for novel treatment strategies.
  • Further research into RBP4 mechanisms is warranted for therapeutic development.