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자료유형
학술저널
저자정보
Namkung, Jun (Graduate School of Medical Science and Engineering, Korea Advanced Institute of Science and Technology) Oh, Chang-Myung (Department of Internal Medicine, CHA Bundang Medical Center, School of Medicine CHA University) Park, Sangkyu (Department of Biochemistry, College of Medicine, Catholic Kwandong University) Kim, Hail (Graduate School of Medical Science and Engineering, Korea Advanced Institute of Science and Technology)
저널정보
뮤코다당증연구학회 Journal of mucopolysaccharidosis and rare disease Journal of mucopolysaccharidosis and rare disease 제2권 제2호
발행연도
2016.1
수록면
43 - 45 (3page)

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Whole body energy balance is achieved through the coordinated regulation of energy intake and energy expenditure in various tissues including liver, muscle and adipose tissues. A positive energy imbalance by excessive energy intake or insufficient energy expenditure results in obesity and related metabolic diseases. Although there have been many obesity treatment trials aimed at the reduction of energy intake, these strategies have achieved only limited success because of their associated adverse effects. Serotonin is among those traditional pharmacological targets for anti-obesity treatment because central 5-HT functions as an anorexigenic neurotransmitter in the brain. Thus, there have been many trials aimed at increasing the activity of 5-HT in the central nervous system, and some of the developed methods are already used in the clinical setting as anti-obesity drugs. However, recent studies suggest the new functions of peripheral serotonin in energy homeostasis ranging from the endocrine regulation by gut-derived serotonin to the autocrine/paracrine regulation by adipocyte-derived serotonin. Pharmacological inhibition of 5-HT synthesis leads to inhibition of lipogenesis in epididymal white adipose tissue (WAT), induction of browning in inguinal WAT and activation of adaptive thermogenesis in brown adipose tissue (BAT). Fat specific Tph1 knock-out (Tph1 FKO) mice exhibit similar phenotypes as mice with pharmacological inhibition of 5-HT synthesis, suggesting the localized effects of 5-HT in adipose tissues. In addition, Htr3a KO mice exhibit increased energy expenditure in BAT and Htr2a KO mice exhibit the decreased lipid accumulation in WAT. These data suggest the clinical significance of the peripheral serotonergic system as a new therapeutic target for anti-obesity treatment.

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