Journal of Life Science (생명과학회지)

Korean Society of Life Science (한국생명과학회)
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Obesity Regulation through Gut Microbiota Modulation and Adipose Tissue Browning

장내 미생물의 조절과 지방세포의 갈색지방화를 통한 비만 조절 연구

  • Cho, Yejin (College of Medicine, Soonchunhyang University) ;
  • Shamim, Rahman Md. (Department of Microbiology, College of Medicine, Soonchunhyang University) ;
  • Kim, Yong-Sik (College of Medicine, Soonchunhyang University)
  • Received : 2019.07.11
  • Accepted : 2019.08.05
  • Published : 2019.08.30
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Abstract

Obesity, represented by abnormal fat accumulation due to an imbalance between energy intake and expenditure, is a major public health issue worldwide, leading to multiple noncommunicable diseases, including atherosclerosis, hypertension, type 2 diabetes, and cancer. Diverse solutions have been proposed to combat obesity. Attention has focused on two types of adipose tissues as a promising therapeutic target in obesity: traditional brown and beige or brite. Unlike energy-storing white adipose (endocrine) tissue, traditional brown adipose tissue and beige adipose tissue have energy-dissipating thermogenic properties. Both types of tissue are present in adult humans and inducible through external stimuli, such as cold exposure, ${\beta}3$-adrenergic receptor agonists, and phytochemicals. Among these stimuli, microbiota present in the human intestinal tract participate in multiple metabolic activities. Modulation of gut microbiota may offer a potent and possibly curative strategy against various metabolic diseases. Numerous studies have focused on the effects of established antiobesity treatments on the gut microenvironment or brown-adipose-tissue activation. In this review, we focus mainly on stimuli known to alleviate obesity, weight gain, and metabolic diseases, in addition to known and possible inter-relations between gut microbiota modulation and similar interventions and adipose tissue browning. The findings may pave the way toward new strategies against obesity.

비만은 에너지 섭취와 소비의 불균형으로 인해 유발되는 비정상적인 지방 축적으로, 근래에 다양한 만성질환을 초래하는 주요 국제 보건 문제로 부상하였다. 이러한 이유로, 비만 문제에 대한 여러 해결책들이 제시되고 있다. 에너지를 저장하며 내분비 작용을 하는 백색 지방과 달리 열을 생성하여 에너지를 발산하는 두 종류의 지방조직인 갈색 지방과 베이지색 지방이 성인에 존재하며 외부 자극에 의해 유도될 수 있다는 것이 밝혀진 이래로, 이들은 비만 치료의 유망한 표적으로서 각광받고 있다. 이러한 외부 자극 중, 인간 장관계에서 인간과 공존하는 장내 미생물총은 다양한 대사 작용에 참여하며, 이를 조절하는 것이 여러 대사 질환의 치료에 유력한 작용을 할 것으로 보인다. 따라서, 다양한 연구에서 항비만 치료가 장내 미생물 환경 전환이나 갈색 지방 조직 활성화에 미치는 영향에 초점을 맞추고 있다. 본 총설에서는 비만과 체중 증가, 대사 질환을 해소하는 것으로 알려진 자극과, 장내 미생물총의 변화나 갈색지방의 활성화를 야기하는 자극과, 이 자극들과 장내 미생물총의 조작, 지방조직의 갈색화 사이에서 알려져 있거나 있을 수 있는 상관관계를 중점적으로 다루고자 한다.

Keywords

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