Retinoic Acid Modulation of Adipocyte Differentiation and Thermogenic Activity

Retinoic acid, the biologically active form of vitamin A, exerts multifaceted control over the formation and functional identity of fat cells. In white adipose lineages, retinoic acid signalling curtails early adipogenesis by downregulating key transcription factors such as peroxisome proliferator-activated receptor γ and CCAAT/enhancer-binding proteins, thereby limiting lipid accumulation. Simultaneously, retinoic acid engages nuclear retinoic acid receptors to activate a thermogenic gene programme in brown and beige adipocytes, notably upregulating uncoupling protein 1 (UCP1) and mitochondrial biogenesis factors. This dual action underpins a balance between energy storage and dissipation, with potential to manipulate fat cell plasticity for metabolic health. Recent work has elucidated molecular determinants of retinoid responsiveness, including retinoic acid response elements in thermogenic gene promoters and the role of intracellular lipid-binding proteins in modulating receptor availability. Emerging evidence supports the concept of “browning” white depots via retinoid pathways, offering a promising avenue for obesity intervention and improvement of systemic glucose and lipid homeostasis.

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Retinoic Acid Modulation of Adipocyte Differentiation and Thermogenic Activity publication trend

The graph below shows the total number of articles in retinoic acid modulation of adipocyte differentiation and thermogenic activity across all publications each year (not limited to Nature Index journals).

Technical terms

Retinoic acid: A metabolite of vitamin A that binds nuclear receptors to regulate gene transcription.

Adipocyte differentiation (adipogenesis): The process by which precursor cells develop into mature fat cells capable of storing lipids.

Thermogenesis: The biochemical generation of heat, notably in brown and beige fat via mitochondrial uncoupling.

Uncoupling protein 1 (UCP1): A mitochondrial inner-membrane protein that dissipates the proton gradient to produce heat rather than ATP.

Retinoic acid receptors (RARs): A family of nuclear hormone receptors that heterodimerise with RXR to mediate retinoic acid-dependent transcription.

Browning: The acquisition of thermogenic, mitochondria-rich characteristics by white adipocytes under specific stimuli.

References

1. A Novel Regulatory Pathway of Brown Fat Thermogenesis RETINOIC ACID IS A TRANSCRIPTIONAL ACTIVATOR OF THE MITOCHONDRIAL UNCOUPLING PROTEIN GENE (∗). Journal of Biological Chemistry (1995).
2. Retinoic acid has different effects on UCP1 expression in mouse and human adipocytes. BMC Molecular and Cell Biology (2013).
3. Repression of Cellular Retinoic Acid-binding Protein II during Adipocyte Differentiation*. Journal of Biological Chemistry (2010).
4. The Transcriptional Role of Vitamin A and the Retinoid Axis in Brown Fat Function. Frontiers in Endocrinology (2020).