Metabolic Regulation in Hepatic Systems

The liver plays a central role in maintaining systemic energy balance by integrating nutrient availability, hormonal signals and cellular energy status. Hepatocytes coordinate key pathways including gluconeogenesis, glycogen synthesis, lipid synthesis and fatty acid β-oxidation. Rapid adjustments in enzyme activity occur via reversible phosphorylation and allosteric modulation, while long-term adaptation involves changes in enzyme abundance. Cross-talk between mitochondrial and peroxisomal compartments ensures efficient handling of fatty acids and reactive oxygen species. Dysregulation of these regulatory networks contributes to common disorders such as non-alcoholic fatty liver disease, type 2 diabetes and metabolic syndrome. Recent advances in computational modelling, high-resolution proteomics and non-invasive imaging have provided new insights into the dynamic control mechanisms that underpin hepatic metabolic flexibility and identify potential therapeutic targets.

Research from Nature Portfolio

Seminal computational models have been developed to represent central liver metabolism with unprecedented biochemical detail. By integrating quantitative proteomics, hormone-dependent phosphorylation and allosteric feedback, these frameworks simulate diurnal variations in gluconeogenesis, glycolysis and lipid handling under diverse perturbations such as alcohol intake, pharmaceutical agents and inherited enzyme deficiencies. Model predictions elucidate how alterations in enzyme capacities and regulatory interactions drive states of steatosis, insulin resistance or malignant transformation, offering a powerful platform for hypothesis testing and personalised therapeutic design.

Metabolic Regulation in Hepatic Systems publication trend

The graph below shows the total number of articles in metabolic regulation in hepatic systems across all publications each year (not limited to Nature Index journals).

Technical terms

Hepatocyte: The principal functional cell of the liver, responsible for executing metabolic, synthetic and detoxification processes.

Gluconeogenesis: The pathway by which glucose is synthesised from non-carbohydrate precursors, such as amino acids and glycerol, during fasting.

β-oxidation: The stepwise enzymatic breakdown of fatty acids within mitochondria or peroxisomes to generate acetyl-CoA for energy production.

Allosteric regulation: Control of enzyme activity by effector molecules binding at sites other than the catalytic centre, modulating conformation and function.

Kinetic model: A mathematical framework that describes the rates of biochemical reactions and their regulatory interactions within a metabolic network.

References

1. Insoluble Dietary Fiber from Soybean Residue (Okara) Exerts Anti-Obesity Effects by Promoting Hepatic Mitochondrial Fatty Acid Oxidation. Foods (2023).
2. Long-chain dicarboxylic acids play a critical role in inducing peroxisomal β-oxidation and hepatic triacylglycerol accumulation. Journal of Biological Chemistry (2023).
3. Pregnancy alters fatty acid metabolism, glucose regulation, and detoxification of the liver in synchrony with biomechanical property changes. Heliyon (2024).
4. HEPATOKIN1 is a biochemistry-based model of liver metabolism for applications in medicine and pharmacology. Nature Communications (2018).