Mechanisms of Adipose Tissue Plasticity and Metabolic Regulation

Adipose tissue exhibits remarkable plasticity, enabling dynamic adaptation of energy storage and expenditure in response to nutritional and environmental cues. White adipocytes specialise in lipid sequestration and endocrine signalling, whereas brown and beige adipocytes dissipate chemical energy as heat via uncoupling protein 1 (UCP1)-driven thermogenesis. Tissue remodelling involves adipocyte hypertrophy and hyperplasia, activation and recruitment of precursor cells, extracellular matrix turnover, angiogenesis and immune cell crosstalk. Depot-specific differences in expandability, vascularisation and inflammatory tone determine systemic insulin sensitivity and lipid homeostasis. Under chronic energy surplus, maladaptive white adipose tissue expansion leads to hypoxia, fibrosis, immune infiltration and lipotoxic spill-over, precipitating metabolic dysfunction. Conversely, induction of browning programmes, mitochondrial biogenesis and modulated inflammatory circuits represent promising avenues to enhance energy expenditure and restore metabolic equilibrium. Central regulatory pathways—including PPARγ-mediated adipogenesis, PRDM16-driven lineage specification and inflammasome activation—coordinate the balance between storage and thermogenic phenotypes. By elucidating the cellular and molecular networks governing depot-specific plasticity, researchers aim to develop targeted strategies for combating obesity, diabetes and associated comorbidities.

Research from Nature Portfolio

Recent studies have elucidated how morphological and functional remodelling of adipose and muscle tissues contributes to metabolic recovery following weight-loss interventions. Analyses of subcutaneous and visceral depots in patients undergoing bariatric surgery revealed distinct changes in adipocyte size, mitochondrial density and immune cell composition. Reduction of crown-like structures in subcutaneous fat and enhanced mitochondrial biogenesis correlated with improved insulin sensitivity and β-cell function. In contrast, persistent histopathological alterations in visceral fat were associated with incomplete restoration of glucose homeostasis in Type 2 diabetes. These findings emphasise the heterogeneity of adipose depots in shaping systemic metabolic outcomes and underscore the need for depot-targeted therapeutic approaches.

Mechanisms of Adipose Tissue Plasticity and Metabolic Regulation publication trend

The graph below shows the total number of articles in mechanisms of adipose tissue plasticity and metabolic regulation across all publications each year (not limited to Nature Index journals).

Technical terms

Adipocyte hypertrophy: Increase in individual fat cell volume through lipid accumulation.

Adipogenesis: Differentiation of mesenchymal precursors into mature adipocytes.

Browning: Acquisition of thermogenic characteristics by white adipocytes, including UCP1 expression.

Extracellular matrix remodelling: Dynamic restructuring of connective tissue scaffolds that support depot expansion and contraction.

Inflammasome: Cytosolic multiprotein complex that activates inflammatory caspases and cytokine maturation in response to stress.

Uncoupling protein 1 (UCP1): Inner mitochondrial membrane protein that dissipates proton gradient to generate heat in brown and beige adipocytes.

References

1. Unhealthy visceral fat is associated with improved efficacy of immunotherapy in endometrial cancer. Journal of Clinical Investigation (2024).
2. Adipose tissue plasticity: how fat depots respond differently to pathophysiological cues. Diabetologia (2016).
3. Muscle and adipose tissue morphology, insulin sensitivity and beta-cell function in diabetic and nondiabetic obese patients: effects of bariatric surgery. Scientific Reports (2017).