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http://dx.doi.org/10.3746/jkfn.2013.42.7.1015

Effects of Glycyrrhiza inflata Batal Extracts on Adipocyte and Osteoblast Differentiation  

Seo, Cho-Rong (Dept. of Food Science and Biotechnology, Sungkyunkwan University)
Byun, Jong Seon (Adbiotech Co., Ltd.)
An, Jae Jin (Bioceltran Co., Ltd.)
Lee, JaeHwan (Dept. of Food Science and Biotechnology, Sungkyunkwan University)
Hong, Joung-Woo (Graduate School of East-West Medical Science, Kyung Hee University)
Jang, Sang Ho (Adbiotech Co., Ltd.)
Park, Kye Won (Dept. of Food Science and Biotechnology, Sungkyunkwan University)
Publication Information
Journal of the Korean Society of Food Science and Nutrition / v.42, no.7, 2013 , pp. 1015-1021 More about this Journal
Abstract
Glycyrrhiza inflata Batal, an important species of licorice, is one of the most widely used medicinal plants for over 4000 years. Glycyrrhiza plant species has been well known for its various therapeutic activities such as anti-inflammatory, anti-allergic, and anti-ulcer. The purpose of this study was to determine the effects of Glycyrrhiza inflata Batal ethanol extracts (GBE) on adipocyte and osteoblast differentiation. Mesenchymal C3H10T1/2 cells were treated with sub-cytotoxic doses of GBE, and its effects on adipocyte differentiation were assessed. We found that GBE dose-dependently increased lipid accumulation and also induced the expression of adipocyte markers, such as $PPAR{\gamma}$ and its target genes, aP2, and adiponectin, in C3H10T1/2 cells. Consistently, similar effects of GBE on lipid accumulation were also observed in preadipocyte 3T3-L1 cells that further supports the pro-adipogenic activities of GBE. We also investigated the effects of GBE on osteoblast differentiation of mesenchymal C3H10T1/2 cells. As a results, we found that GBE increased the activity of alkaline phosphatase in a dose-dependent manner and also promoted the expression of osteoblast markers, such as ALP and RUNX2, during osteoblast differentiation of C3H10T1/2 cells. Similar pro-osteogenic effects of GBE were also observed in preosteoblast MC3T3-E1 cells. Finally, our data show that a major bioactive compound found in Glycyrrhiza inflata Batal, licochalcone A (LA) but not glycyrrhizic acid (GA), can mediate the pro-adipogenic and pro-osteogenic effects of GBE. Taken together, this study provides data to show the possibility of GBE and its bioactive component LA as putative strategies for type 2 diabetes and bone diseases.
Keywords
Glycyrrhiza inflata Batal; adipocyte; osteoblast; differentiation;
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