Adipose tissue as an endocrine organ

Area of Science:

• Endocrinology
• Metabolic Syndrome
• Adipose Tissue Biology

Background:

• Adipose tissue is recognized as an endocrine organ, secreting various bioactive proteins.
• Leptin, discovered in the 1990s, plays a crucial role in regulating appetite and energy homeostasis.
• Adipose tissue also influences sex steroid and glucocorticoid metabolism, impacting body fat distribution and cardiovascular health.

Purpose of the Study:

• To review the multifaceted roles of adipose tissue-secreted proteins.
• To highlight the involvement of leptin in energy balance and neuroendocrine/immune regulation.
• To discuss how other adipose products contribute to obesity-associated complications.

Main Methods:

• Literature review of studies on adipose tissue biology and secreted factors.
• Analysis of the known functions of leptin.
• Examination of the role of other adipose-derived molecules in metabolic and cardiovascular health.

Main Results:

• Leptin significantly impacts appetite, energy balance, and neuroendocrine and immune systems.
• Adipose tissue's role in sex steroid and glucocorticoid metabolism affects body fat distribution and cardiovascular risk.
• Proinflammatory cytokines, complement factors, and coagulation/fibrinolytic components from adipose tissue are implicated in obesity complications.

Conclusions:

• Adipose tissue is a key endocrine organ with diverse secreted factors.
• Leptin is a critical regulator of energy balance and broader physiological functions.
• Understanding adipose-derived products is essential for addressing metabolic and cardiovascular risks associated with obesity.