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Licochalcone F alleviates glucose tolerance and chronic inflammation in diet-induced obese mice through Akt and p38 MAPK

Authors
 Eun-Jung Bak  ;  Kyung-Chul Choi  ;  Sungil Jang  ;  Gye-Hyeong Woo  ;  Ho-Geun Yoon  ;  Younghwa Na  ;  Yun-Jung Yoo  ;  Youngseok Lee  ;  Yangsik Jeong  ;  Jeong-Heon Cha 
Citation
 CLINICAL NUTRITION, Vol.35(2) : 414-421, 2016 
Journal Title
 CLINICAL NUTRITION 
ISSN
 0261-5614 
Issue Date
2016
MeSH
Adipocytes/drug effects ; Adipocytes/metabolism ; Adipose Tissue/drug effects ; Adipose Tissue/metabolism ; Animals ; Anti-Inflammatory Agents/pharmacology* ; Blood Glucose/metabolism ; Body Weight ; Chalcones/pharmacology* ; Chemokine CCL2/genetics ; Chemokine CCL2/metabolism ; Chronic Disease ; Cyclooxygenase 2/genetics ; Cyclooxygenase 2/metabolism ; Diet, High-Fat/adverse effects ; Down-Regulation ; Glucose Intolerance/drug therapy* ; Inflammation/drug therapy* ; Interleukin-1beta/metabolism ; Interleukin-6/genetics ; Interleukin-6/metabolism ; Macrophages/drug effects ; Macrophages/metabolism ; Male ; Mice ; Mice, Inbred C57BL ; Mice, Obese ; NF-kappa B/genetics ; NF-kappa B/metabolism ; Nitric Oxide Synthase Type II/genetics ; Nitric Oxide Synthase Type II/metabolism ; Obesity/drug therapy ; Proto-Oncogene Proteins c-akt/genetics ; Proto-Oncogene Proteins c-akt/metabolism* ; RNA, Messenger/genetics ; RNA, Messenger/metabolism ; Signal Transduction ; Tumor Necrosis Factor-alpha/genetics ; Tumor Necrosis Factor-alpha/metabolism ; p38 Mitogen-Activated Protein Kinases/genetics ; p38 Mitogen-Activated Protein Kinases/metabolism*
Keywords
Anti-inflammatory effect ; Diet-induced obese mice ; Licochalcone F ; Obesity-induced chronic inflammation
Abstract
BACKGROUND & AIMS: Licochalcone (lico) F is a novel synthetic retrochalcone. In this study, we investigated the anti-inflammatory effects of lico F in vitro, and its effects on obesity-induced chronic inflammation, glucose intolerance, and fatty liver in vivo. METHODS: The inhibitory effects of lico F on TNFα-induced inflammation were investigated using NF-κB luciferase reporter assay and RT-PCR. Diet-induced obese mice were treated orally, once per day, with vehicle or lico F (10 mg/kg/day), for 3 weeks, and blood, liver, and adipose tissues were analyzed. RESULTS: Lico F inhibited TNFα-induced NF-κB activation and mRNA expression of TNFα, COX-2, IL-6, IL-1β, and NOS2. In obese mice, lico F administration significantly alleviated glucose tolerance without changes in body weight gain and food intake. Lico F reduced adipocyte size and macrophage infiltration into white adipose tissue and improved hepatic lesions, by decreasing fat droplets and glycogen deposition. The mRNA expression levels of TNFα, MCP-1, and CD68 in white adipose tissue also decreased markedly. Moreover, lico F enhanced Akt signaling, but reduced p38 MAPK signaling in white adipose tissue. CONCLUSIONS: Lico F had anti-inflammatory effects and showed beneficial effects on glucose metabolism, which could be partially caused by activation of the Akt signal pathway and obesity-induced chronic inflammation, probably by downregulating p38 signal pathway. Moreover, lico F could be used as a potential novel therapeutic compound against type 2 diabetes and obesity-induced chronic inflammation without the deleterious effects of body weight gain and fatty liver.
Full Text
http://www.sciencedirect.com/science/article/pii/S0261561415000801
DOI
10.1016/j.clnu.2015.03.005
Appears in Collections:
2. College of Dentistry (치과대학) > Dept. of Oral Biology (구강생물학교실) > 1. Journal Papers
1. College of Medicine (의과대학) > Dept. of Biochemistry and Molecular Biology (생화학-분자생물학교실) > 1. Journal Papers
Yonsei Authors
Yoo, Yun Jung(유윤정) ORCID logo https://orcid.org/0000-0002-0045-9597
Yoon, Ho Geun(윤호근) ORCID logo https://orcid.org/0000-0003-2718-3372
Jang, Sungil(장성일) ORCID logo https://orcid.org/0000-0001-6144-6899
Cha, Jung Heon(차정헌) ORCID logo https://orcid.org/0000-0002-9385-2653
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/146500
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