Adipocyte differentiation: from fibroblast to endocrine cell

Area of Science:

• Adipose tissue biology
• Endocrinology
• Metabolic diseases

Background:

• White adipose tissue (WAT) is crucial for energy balance and acts as an endocrine organ.
• WAT mass dysregulation leads to obesity or lipoatrophy, linked to cardiovascular diseases and diabetes.
• Changes in adipocyte number, through preadipocyte proliferation and differentiation, alter WAT mass.

Purpose of the Study:

• To review the cellular and molecular mechanisms of adipogenesis.
• To highlight the roles of key transcription factors and signaling pathways in fat cell formation.
• To provide a basis for understanding adipose tissue disorders and developing therapeutic strategies.

Main Methods:

• Review of in vitro preadipocyte culture systems.
• Analysis of key adipogenic transcription factors, including PPAR-gamma and C/EBP-alpha.
• Examination of hormonal, nutritional, and cell-matrix interaction signaling.

Main Results:

• Adipogenesis is a highly controlled process involving a complex transcriptional cascade.
• Peroxisome proliferator-activated receptor-gamma and CCAAT/enhancer binding protein-alpha are critical regulators.
• Hormonal, nutritional, and cell-interaction signals modulate adipocyte differentiation.

Conclusions:

• Understanding adipogenesis is essential for comprehending adipose tissue physiology and pathology.
• Knowledge of adipogenesis can inform the development of novel therapeutic approaches for obesity and related metabolic diseases.
• Targeting adipogenesis pathways may offer new strategies for managing metabolic disorders.