한빛사논문
Kyu Sik Kim 1 †, Joon Seok Park 1 †, Eunsang Hwang 2 †, Min Jung Park 1 3, Hwa Yun Shin 1, Young Hee Lee 1, Kyung Min Kim 1, Laurent Gautron 2, Elizabeth Godschall 4, Bryan Portillo 2, Kyle Grose 2, Sang-Ho Jung 1, So Lin Baek 1, Young Hyun Yun 5, Doyeon Lee 1 6, Eunseong Kim 1, Jason Ajwani 2, Seong Ho Yoo 7, Ali D Güler 4, Kevin W Williams 2 *, Hyung Jin Choi 1 5 8 9 10 *
1Department of Biomedical Sciences, Seoul National University College of Medicine, 103 Daehak-ro, Jongno-gu, Seoul 03080, Republic of Korea.
2Center for Hypothalamic Research, Department of Internal Medicine, Peter O'Donnell Jr. Brain Institute, UT Southwestern Medical Center, Dallas, TX, USA.
3Department of Neurosurgery, Seoul National University College of Medicine, Seoul, Republic of Korea.
4Department of Biology, University of Virginia, Charlottesville, VA, USA.
5Department of Anatomy and Cell Biology, Seoul National University College of Medicine, 103 Daehak-ro, Jongno-gu, Seoul 03080, Republic of Korea.
6Queen Square Institute of Neurology, University College London, Queen Square, London WC1N 3BG, UK.
7Department of Forensic Medicine, Seoul National University College of Medicine, 103 Daehak-ro, Seoul, Republic of Korea.
8Neuroscience Research Institute, Seoul National University College of Medicine, 103 Daehak-ro, Jongno-gu, Seoul 03080, Republic of Korea.
9Wide River Institute of Immunology, Seoul National University, 101 Dabyeonbat-gil, Hwachon-myeon, Gangwon-do 25159, Republic of Korea.
10Department of Brain and Cognitive Sciences, Seoul National University, Seoul, Republic of Korea.
†These authors contributed equally
*Corresponding authors: correspondence to Kevin W Williams or Hyung Jin Choi
Abstract
GLP-1 receptor agonists (GLP-1RAs) are effective anti-obesity drugs. However, the precise central mechanisms of GLP-1RAs remain elusive. We administered GLP-1RAs to obese patients and observed heightened sense of preingestive satiation. Analysis of human and mouse brain samples pinpointed GLP-1R neurons in the dorsomedial hypothalamus (DMH) as candidates for encoding preingestive satiation. Optogenetic manipulation of DMHGLP-1R neurons caused satiation. Calcium imaging demonstrated that these neurons are actively involved in encoding preingestive satiation. GLP-1RA administration increased the activity of DMHGLP-1R neurons selectively during eating behavior. We further identified an intricate interplay between DMHGLP-1R neurons and arcuate NPY/AgRP neurons (ARCNPY/AgRP), to regulate food intake. Our findings reveal a hypothalamic mechanism through which GLP-1RAs control preingestive satiation, offering novel neural targets for obesity and metabolic diseases.
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