Adipose Tissue Metabolism and Fatty Acid Dynamics
Summary
Adipose tissue functions as a dynamic organ that both stores energy and orchestrates systemic metabolism through the regulated handling of fatty acids. Under conditions of energy surplus, adipocytes synthesise and accumulate triglycerides in lipid droplets via lipogenesis, whereas energy deficit triggers lipolysis to release free fatty acids and glycerol into the circulation. Distinct depots—subcutaneous and visceral—differ in cellular composition, enzymatic activity and susceptibility to insulin, with visceral adipose often driving heightened inflammatory signalling and metabolic risk. Key transporters and enzymes, including CD36, lipoprotein lipase, acyl‐CoA synthetase and diacylglycerol acyltransferase, modulate the influx, activation and esterification of fatty acids. Adipose tissue also secretes a repertoire of adipokines that influence appetite, insulin sensitivity and lipid handling in liver and muscle. Recent advances have illuminated the mechanisms governing depot‐specific fatty acid flux, the interplay between adipocyte mitochondrial function and thermogenesis, and the cross‐talk between immune cells and lipid‐metabolising pathways. A nuanced understanding of these processes is essential for developing strategies to combat obesity, type 2 diabetes and cardiovascular disease by targeting adipose tissue biology at the molecular and systemic level.
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Adipose Tissue Metabolism and Fatty Acid Dynamics publication trend
The graph below shows the total number of articles in adipose tissue metabolism and fatty acid dynamics across all publications each year (not limited to Nature Index journals).
Technical terms
Adipocyte: A specialised cell that stores energy as lipid droplets within adipose tissue.
Lipolysis: The enzymatic breakdown of stored triglycerides into free fatty acids and glycerol.
Lipogenesis: The metabolic pathway synthesising fatty acids and triglycerides from acetyl-CoA and other precursors.
Free fatty acids (FFA): Non-esterified fatty acids released into the circulation following lipolysis.
Lipoprotein lipase (LPL): An enzyme that hydrolyses triglycerides in circulating lipoproteins to facilitate fatty acid uptake by tissues.
Visceral adipose tissue: Fat depots surrounding internal organs in the abdominal cavity, often linked to increased metabolic and cardiovascular risk.
References
- Visceral Adipose Tissue: The Hidden Culprit for Type 2 Diabetes. Nutrients (2024).
- The Sexual Dimorphism of Lipid Kinetics in Humans. Frontiers in Endocrinology (2015).
- Effects of short‐term sex steroid suppression on dietary fat storage patterns in healthy males. Physiological Reports (2018).
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