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Tschimganidine reduces lipid accumulation through AMPK activation and alleviates high-fat diet-induced metabolic diseases.

ABSTRACT: Obesity increases the risk of mortality and morbidity because it results in hypertension, heart disease, and type 2 diabetes. Therefore, there is an urgent need for pharmacotherapeutic drugs to treat obesity. We performed a screening assay using natural products with anti-adipogenic properties in 3T3-L1 cells and determined that tschimganidine, a terpenoid from the Umbelliferae family, inhibited adipogenesis. To evaluate the anti-obesity effects of tschimganidine in vivo. Mice were fed either a normal chow diet (NFD) or a high-fat chow diet (HFD) with or without tschimganidine for 12 weeks. Treatment with tschimganidine decreased lipid accumulation and adipogenesis, accompanied by reduced expression of adipogenesis and lipid accumulation-related factors. Tschimganidine significantly increased the phosphorylation of AMP-activated protein kinase (AMPK) and decreased that of AKT. Depletion of AMPK relieved the reduction in lipid accumulation resulting from tschimganidine treatment. Moreover, tschimganidine administration drastically reduced the weight and size of both gonadal white adipose tissue (WAT) and blood glucose levels in high-fat diet-induced obese mice. We suggest that tschimganidine is a potent antiobesity agent, which impedes adipogenesis and improves glucose homeostasis. Tschimganidine can then be evaluated for clinical application as a therapeutic agent. [BMB Reports 2023; 56(4): 246-251].

SUBMITTER: Hwang MS

PROVIDER: S-EPMC10140487 | biostudies-literature | 2023 Apr

REPOSITORIES: biostudies-literature

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Tschimganidine reduces lipid accumulation through AMPK activation and alleviates high-fat diet-induced metabolic diseases.

Hwang Min-Seon MS Baek Jung-Hwan JH Song Jun-Kyu JK Lee In Hye IH Chun Kyung-Hee KH

BMB reports 20230401 4

Obesity increases the risk of mortality and morbidity because it results in hypertension, heart disease, and type 2 diabetes. Therefore, there is an urgent need for pharmacotherapeutic drugs to treat obesity. We performed a screening assay using natural products with anti-adipogenic properties in 3T3-L1 cells and determined that tschimganidine, a terpenoid from the Umbelliferae family, inhibited adipogenesis. To evaluate the anti-obesity effects of tschimganidine <i>in vivo</i>. Mice were fed ei ...[more]

PMID: 36646438

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Project description:The aim of this study was to investigate whether a novel formulation of an herbal extract, KBH-1, has an inhibitory effect on obesity. To determine its anti-obesity effects and its underlying mechanism, we performed anti-obesity-related experiments in vitro and in vivo. 3T3-L1 preadipocytes were analyzed for lipid accumulation as well as the protein and gene expression of molecular targets involved in fatty acid synthesis. To determine whether KBH-1 oral administration results in a reduction in high-fat diet (HFD)-induced obesity, we examined five groups (n = 9) of C57BL/6 mice as follows: 10% kcal fat diet-fed mice (ND), 60% kcal fat diet-fed mice (HFD), HFD-fed mice treated with orlistat (tetrahydrolipstatin, marketed under the trade name Xenical), HFD-fed mice treated with 150 mg/kg KBH-1 (KBH-1 150) and HFD-fed mice treated with 300 mg/kg KBH-1 (KBH-1 300). During adipogenesis of 3T3-L1 cells in vitro, KBH-1 significantly reduced lipid accumulation and down-regulated the expression of master adipogenic transcription factors, including CCAAT/enhancer binding protein (C/EBP) β, C/EBP α and peroxisome proliferation-activity receptor (PPAR) γ, which led to the suppression of the expression of several adipocyte-specific genes and proteins. KBH-1 also markedly phosphorylated the adenosine monophosphate-activated protein kinase (AMPK) and acetyl-CoA carboxylase (ACC). In addition, KBH-1-induced the inhibition effect on lipid accumulation and AMPK-mediated signal activation were decreased by blocking AMPK phosphorylation using AMPK siRNA. Furthermore, daily oral administration of KBH-1 resulted in dose-dependent decreases in body weight, fat pad mass and fat tissue size without systemic toxicity. These results suggest that KBH-1 inhibits lipid accumulation by down-regulating the major transcription factors of the adipogenesis pathway by regulating the AMPK pathway in 3T3-L1 adipocytes and in mice with HFD-induced obesity. These results implicate KBH-1, a safe herbal extract, as a potential anti-obesity therapeutic agent.

Dataset Information

Tschimganidine reduces lipid accumulation through AMPK activation and alleviates high-fat diet-induced metabolic diseases.

Publications

Tschimganidine reduces lipid accumulation through AMPK activation and alleviates high-fat diet-induced metabolic diseases.

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