In recent research: exosomal and molecular regulators of browning and thermogenesis in adipose tissues

TL;DR

This review explores how brown and beige fat tissues regulate energy use and could help treat obesity and diabetes.

Contribution

The paper integrates recent findings on molecular and environmental regulators of adipose tissue browning into a unified framework.

Findings

Adipose tissue is a dynamic organ involved in metabolic regulation, not just energy storage.

Exosomal microRNAs and adrenergic signaling are key regulators of thermogenesis and browning.

Environmental factors like cold and exercise influence common pathways for thermogenesis.

Abstract

This review synthesizes current knowledge on the molecular mechanisms regulating brown, white, and beige adipose tissues, with particular emphasis on the browning process of white adipose tissue. Rather than considering adipose tissue as a passive energy reservoir, this review underscores its active role as a dynamic endocrine and metabolic organ. Brown and beige adipose tissues, recognized for their thermogenic capacity and contribution to energy expenditure, have emerged as promising therapeutic targets for the treatment of obesity, type 2 diabetes, and related metabolic disorders. The review draws upon recent findings on adrenergic signaling, transcription factors, exosomal microRNAs, and other novel regulatory pathways for the creation of a cohesive framework. Particular attention is paid to how environmental, physiological, and molecular cues, such as exposure to cold, exercise, gut microbiota, and exosomal communications, converge on common pathways to influence thermogenesis and browning. By highlighting these interrelated mechanisms, the review not only summarizes recent advances in the field, but also clarifies their interconnected implications for metabolic regulation and potential therapeutic interventions.

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