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Tian J, He X, Lan X, Liang X, Zhong Z, Zhu L, Chen K, Chang Q, Xu W. One-Pot Controllable Assembly of a Baicalin-Condensed Aptamer Nanodrug for Synergistic Anti-Obesity. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2205933. [PMID: 36461678 DOI: 10.1002/smll.202205933] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/27/2022] [Revised: 11/11/2022] [Indexed: 06/17/2023]
Abstract
The rapid, simple and low-cost preparation of DNA micro-nano-architectures remain challenging in biosensing and therapy. Polymerase chain reaction (PCR)-driven DNA micro-nano-flowers are used to construct a nanosized baicalin-compressed-aptamer-nanodrug (bcaND) via one-pot assembly for targeted and synergistic anti-obesity. In the design, the tailored Adipo-8 (tAdi-8) overhang in the PCR amplicon displays anti-obesity targeting activity, while the baicalin loaded in the bcaND by embedding the amplicon plays a three-fold role as a lipid-lowering factor, bcaND size compressor, and uncoupling protein-1 (UCP1)-raised thermogenic activator. The ingenious bcaND represents an advanced multifunctional nanomaterial capable of adjusting the morphology at an optimal 400/1 molar ratio of Mg2+ to phosphate groups, compressing the size from 2.699 µm to 214.76 nm using 1 mg/mL baicalin at a temperature of 70 °C, an effective payload with amplicons of up to 98.94%, and a maximum baicalin load of 86.21 g/g DNA. Responsive release in acidic conditions (pH 5.0) occurs within 72 h, accelerating thermogenesis via UCP1 up-regulation by 2.5-fold in 3T3-L1-preadipocytes and 13.7-fold in the white-adipose-tissue (WAT) of mice, targeting adipocytes and visceral white adipose tissue. It plays an efficient synergistic role in obesity therapy in vitro and in vivo, providing a new direction for DNA self-assembly nanotechnology.
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Affiliation(s)
- Jingjing Tian
- Food Laboratory of Zhongyuan, Key Laboratory of Precision Nutrition and Food Quality, Department of Nutrition and Health, China Agricultural University, Beijing, 100083, China
- Key Laboratory of Safety Assessment of Genetically Modified Organism (Food Safety) (MOA), College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, 100083, China
- Key Laboratory of Food Processing and Quality Control, College of Food Science and Technology, Nanjing Agricultural University, Nanjing, 210095, China
| | - Xiaoyun He
- Key Laboratory of Safety Assessment of Genetically Modified Organism (Food Safety) (MOA), College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, 100083, China
| | - Xinyue Lan
- Food Laboratory of Zhongyuan, Key Laboratory of Precision Nutrition and Food Quality, Department of Nutrition and Health, China Agricultural University, Beijing, 100083, China
- Key Laboratory of Safety Assessment of Genetically Modified Organism (Food Safety) (MOA), College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, 100083, China
| | - Xingxing Liang
- Key Laboratory of Safety Assessment of Genetically Modified Organism (Food Safety) (MOA), College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, 100083, China
| | - Zhaobin Zhong
- Key Laboratory of Safety Assessment of Genetically Modified Organism (Food Safety) (MOA), College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, 100083, China
| | - Longjiao Zhu
- Food Laboratory of Zhongyuan, Key Laboratory of Precision Nutrition and Food Quality, Department of Nutrition and Health, China Agricultural University, Beijing, 100083, China
| | - Keren Chen
- Food Laboratory of Zhongyuan, Key Laboratory of Precision Nutrition and Food Quality, Department of Nutrition and Health, China Agricultural University, Beijing, 100083, China
- Key Laboratory of Safety Assessment of Genetically Modified Organism (Food Safety) (MOA), College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, 100083, China
| | - Qiaoying Chang
- Food Laboratory of Zhongyuan, Key Laboratory of Precision Nutrition and Food Quality, Department of Nutrition and Health, China Agricultural University, Beijing, 100083, China
| | - Wentao Xu
- Food Laboratory of Zhongyuan, Key Laboratory of Precision Nutrition and Food Quality, Department of Nutrition and Health, China Agricultural University, Beijing, 100083, China
- Key Laboratory of Safety Assessment of Genetically Modified Organism (Food Safety) (MOA), College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, 100083, China
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Lee SG, Kim DS, Chae J, Lee E, Hahn D, Kim IK, Kim CJ, Choi MB, Nam JO. Nidus vespae Built by an Invasive Alien Hornet, Vespa velutina nigrithorax, Inhibits Adipose Tissue Expansion in High-Fat Diet-Induced Obese Mice. BIOLOGY 2022; 11:biology11071013. [PMID: 36101393 PMCID: PMC9311567 DOI: 10.3390/biology11071013] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Revised: 06/14/2022] [Accepted: 07/04/2022] [Indexed: 11/16/2022]
Abstract
Nidus vespae, commonly known as the wasp nest, has antioxidative, anti-inflammatory, antimicrobial, and antitumor properties. However, the anti-obesity effects of Nidus vespae extract (NV) have not yet been reported. This study aimed to elucidate the potential anti-obesity effects of NV in vivo and in vitro, using a high-fat diet (HFD)-induced obese mouse model and 3T3-L1 adipocytes, respectively. NV administration to HFD-induced obese mice significantly decreased the mass and plasma lipid content of adipose tissues. Uncoupling protein-1 expression was significantly higher in the inguinal white adipose tissues of NV-treated mice than in those of HFD-fed mice. Furthermore, we found that NV inhibited the differentiation and intracellular lipid accumulation of 3T3-L1 adipocytes by regulating the insulin signaling cascade, including protein kinase B, peroxisome proliferator-activated receptor gamma, CCAAT/enhancer binding protein alpha, and adiponectin. These findings suggest that NV may exhibit therapeutic effects against obesity by suppressing adipose tissue expansion and preadipocyte differentiation, thereby providing critical information for the development of new drugs for disease prevention and treatment. To our knowledge, this study provides the first evidence of the anti-obesity effects of NV.
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Affiliation(s)
- Seul Gi Lee
- Department of Food Science and Biotechnology, Kyungpook National University, Daegu 41566, Korea; (S.G.L.); (D.S.K.); (J.C.); (E.L.)
- Department of Immunology, School of Medicine, Keimyung University, Daegu 42601, Korea
| | - Dong Se Kim
- Department of Food Science and Biotechnology, Kyungpook National University, Daegu 41566, Korea; (S.G.L.); (D.S.K.); (J.C.); (E.L.)
| | - Jongbeom Chae
- Department of Food Science and Biotechnology, Kyungpook National University, Daegu 41566, Korea; (S.G.L.); (D.S.K.); (J.C.); (E.L.)
| | - Eunbi Lee
- Department of Food Science and Biotechnology, Kyungpook National University, Daegu 41566, Korea; (S.G.L.); (D.S.K.); (J.C.); (E.L.)
| | - Dongyup Hahn
- School of Food Science and Biotechnology, College of Agriculture and Life Sciences, Kyungpook National University, Daegu 41566, Korea;
- Department of Integrative Biology, Kyungpook National University, Daegu 41566, Korea
| | - Il-Kwon Kim
- Division of Forest Biodiversity, Korea National Arboretum, Pocheon 30106, Korea; (I.-K.K.); (C.-J.K.)
| | - Chang-Jun Kim
- Division of Forest Biodiversity, Korea National Arboretum, Pocheon 30106, Korea; (I.-K.K.); (C.-J.K.)
| | - Moon Bo Choi
- Institute of Plant Medicine, Kyungpook National University, Daegu 41566, Korea
- Correspondence: (M.B.C.); (J.-O.N.)
| | - Ju-Ock Nam
- Department of Food Science and Biotechnology, Kyungpook National University, Daegu 41566, Korea; (S.G.L.); (D.S.K.); (J.C.); (E.L.)
- Research Institute of Tailored Food Technology, Kyungpook National University, Daegu 41566, Korea
- Correspondence: (M.B.C.); (J.-O.N.)
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Baicalin Inhibits EMT through PDK1/AKT Signaling in Human Nonsmall Cell Lung Cancer. JOURNAL OF ONCOLOGY 2021; 2021:4391581. [PMID: 34868313 PMCID: PMC8639265 DOI: 10.1155/2021/4391581] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/08/2021] [Accepted: 10/26/2021] [Indexed: 11/17/2022]
Abstract
Background Baicalin is a naturally occurring compound with anticancer, antioxidant, and anti-inflammatory properties. However, the mechanism underlying its anticancer activity on nonsmall cell lung cancer (NSCLC) remains unclear. Methods The effects of baicalin on the progression and metastasis of experimental NSCLC cell lines were studied in vitro and in vivo. Wound-healing and transwell assays were performed to evaluate the potency of baicalin and the motility and migration ability of NCI-H460 cells. Immunofluorescence assay, western blot assay, and immunohistochemistry test were conducted to investigate the inhibiting effect of baicalin on the epithelial-mesenchymal transition (EMT) of NSCLC. Results Baicalin inhibited the proliferation and migration of NCI-H446 human NSCLC cells in a dose-dependent manner, reduced the expression levels of phospho-3-phosphoinositide-dependent protein kinase 1 (p-PDK1) and phosphor-serine/threonine-protein kinase (p-AKT), reversed the levels of EMT markers, and inhibited the migration of NSCLC cells. Conclusions Baicalin impedes EMT by inhibiting the PDK1/AKT pathway in human NSCLC and thus may be an effective alternative treatment for carcinoma and a new candidate antimetastasis drug.
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Borah AK, Sharma P, Singh A, Kalita KJ, Saha S, Chandra Borah J. Adipose and non-adipose perspectives of plant derived natural compounds for mitigation of obesity. JOURNAL OF ETHNOPHARMACOLOGY 2021; 280:114410. [PMID: 34273447 DOI: 10.1016/j.jep.2021.114410] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/09/2021] [Revised: 07/07/2021] [Accepted: 07/10/2021] [Indexed: 06/13/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Phyto-preparations and phyto-compounds, by their natural origin, easy availability, cost-effectiveness, and fruitful traditional uses based on accumulated experiences, have been extensively explored to mitigate the global burden of obesity. AIM OF THIS REVIEW The review aimed to analyse and critically summarize the prospect of future anti-obesity drug leads from the extant array of phytochemicals for mitigation of obesity, using adipose related targets (adipocyte formation, lipid metabolism, and thermogenesis) and non-adipose targets (hepatic lipid metabolism, appetite, satiety, and pancreatic lipase activity). Phytochemicals as inhibitors of adipocyte differentiation, modulators of lipid metabolism, and thermogenic activators of adipocytes are specifically discussed with their non-adipose anti-obesogenic targets. MATERIALS AND METHODS PubMed, Google Scholar, Scopus, and SciFinder were accessed to collect data on traditional medicinal plants, compounds derived from plants, their reported anti-obesity mechanisms, and therapeutic targets. The taxonomically accepted name of each plant in this review has been vetted from "The Plant List" (www.theplantlist.org) or MPNS (http://mpns.kew.org). RESULTS Available knowledge of a large number of phytochemicals, across a range of adipose and non-adipose targets, has been critically analysed and delineated by graphical and tabular depictions, towards mitigation of obesity. Neuro-endocrinal modulation in non-adipose targets brought into sharp dual focus, both non-adipose and adipose targets as the future of anti-obesity research. Numerous phytochemicals (Berberine, Xanthohumol, Ursolic acid, Guggulsterone, Tannic acid, etc.) have been found to be effectively reducing weight through lowered adipocyte formation, increased lipolysis, decreased lipogenesis, and enhanced thermogenesis. They have been affirmed as potential anti-obesity drugs of future because of their effectiveness yet having no threat to adipose or systemic insulin sensitivity. CONCLUSION Due to high molecular diversity and a greater ratio of benefit to risk, plant derived compounds hold high therapeutic potential to tackle obesity and associated risks. This review has been able to generate fresh perspectives on the anti-diabetic/anti-hyperglycemic/anti-obesity effect of phytochemicals. It has also brought into the focus that many phytochemicals demonstrating in vitro anti-obesogenic effects are yet to undergo in vivo investigation which could lead to potential phyto-molecules for dedicated anti-obesity action.
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Affiliation(s)
- Anuj Kumar Borah
- Dept. of Molecular Biology and Biotechnology, Tezpur University, Napaam, Tezpur, 784028, Assam, India
| | - Pranamika Sharma
- Laboratory of Chemical Biology, Life Sciences Division, Institute of Advanced Study in Science & Technology, Guwahati, 781035, Assam, India
| | - Archana Singh
- Dept. of Molecular Biology and Biotechnology, Tezpur University, Napaam, Tezpur, 784028, Assam, India
| | - Kangkan Jyoti Kalita
- Laboratory of Chemical Biology, Life Sciences Division, Institute of Advanced Study in Science & Technology, Guwahati, 781035, Assam, India
| | - Sougata Saha
- Dept. of Biotechnology, NIT Durgapur, West Bengal, 713209, India
| | - Jagat Chandra Borah
- Laboratory of Chemical Biology, Life Sciences Division, Institute of Advanced Study in Science & Technology, Guwahati, 781035, Assam, India.
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Li H, Tang S. Baicalin attenuates diet-induced obesity partially through promoting thermogenesis in adipose tissue. Obes Res Clin Pract 2021; 15:485-490. [PMID: 34465552 DOI: 10.1016/j.orcp.2021.08.003] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/27/2020] [Revised: 07/17/2021] [Accepted: 08/15/2021] [Indexed: 01/29/2023]
Abstract
BACKGROUND Adipose tissues have essential roles on energy homeostasis and the development of metabolic syndrome and obesity, they have become critical targets for treating obesity and metabolic disorders. Baicalin is a flavonoid that derived from the root of Scutellaria baicalensis, and it has been reported to take part in the regulation of adipocyte function. All these highlighted the potential of baicalin in the regulation of fat accumulation and obesity. Yet the impact of baicalin on thermogenic function of adipocytes remains to be deciphered. OBJECTIVE This study aims to explore the anti-obesity effects of baicalin. MATERIALS & METHODS The level of mRNA was detected by qRT-PCR and the protein expression level was examined by western blot. H&E staining was used for the observation of the structure of adipose tissue. Serum triglyceride and insulin levels were detected by commercial test kits. RESULTS Our data demonstrated that baicalin up-regulates the expression of UCP1 and PGC1a in a dose-dependent manner in vitro. Baicalin also increases ERK phosphorylation, and the increased expression of UCP1 and PGC1a in adipocytes could be inhibited by an ERK inhibitor, U0126. Moreover, dietary baicalin ameliorates high fat diet (HFD)-induced obesity without affecting food intake. In addition, dietary baicalin inhibits adipocyte hypertrophy and enhances thermogenic gene program in sWAT and intrascapular brown adipose tissue (iBAT) in vivo. DISCUSSION & CONCLUSION Baicalin prevents HFD-induced obesity partially through promoting adipocyte thermogenesis. Baicalin may be a promising compound against human obesity and related metabolic diseases.
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Affiliation(s)
- Hongdi Li
- School of Sports Training, Wuhan Sports University, Wuhan 430079, China
| | - Shouyan Tang
- School of Sports Science, Lingnan Normal University, Zhanjiang 524033, China.
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Sung YY, Son E, Im G, Kim DS. Herbal Combination of Phyllostachys pubescens and Scutellaria baicalensis Inhibits Adipogenesis and Promotes Browning via AMPK Activation in 3T3-L1 Adipocytes. PLANTS 2020; 9:plants9111422. [PMID: 33114092 PMCID: PMC7690821 DOI: 10.3390/plants9111422] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/16/2020] [Revised: 10/08/2020] [Accepted: 10/22/2020] [Indexed: 02/06/2023]
Abstract
To investigate the anti-obesity effects and underlying mechanism of BS21, a combination of Phyllostachys pubescens leaves and Scutellaria baicalensis roots was used to investigate the effects of BS21 on adipogenesis, lipogenesis, and browning in 3T3-L1 adipocytes. The expression of adipocyte-specific genes was observed via Western blot, and the BS21 chemical profile was analyzed using ultra-performance liquid chromatography (UPLC). BS21 treatment inhibited adipocyte differentiation and reduced the expression of the adipogenic proteins peroxisome proliferator-activated receptor γ (PPAR-γ), CCAAT/enhancer-binding protein (C/EBP-α), and adipocyte protein 2 (aP2), as well as the lipogenic proteins sterol regulatory element-binding protein 1c (SREBP-1c) and fatty-acid synthase (FAS). BS21 enhanced protein levels of the beta-oxidation genes carnitine palmitoyltransferase (CPT1) and phospho-acetyl-coA carboxylase (p-ACC). BS21 also induced protein expressions of the browning marker genes PR domain containing 16 (PRDM16), peroxisome proliferator-activated receptor gamma co-activator 1-alpha (PGC1α), and uncoupling protein (UCP) 1, and it induced the expression of the thermogenic gene UCP2. Furthermore, BS21 increased adenosine monophosphate-activated protein kinase (AMPK) activation. UPLC analysis showed that BS21 contains active constituents such as chlorogenic acid, orientin, isoorientin, baicalin, wogonoside, baicalein, tricin, wogonin, and chrysin. Our findings demonstrate that BS21 plays a modulatory role in adipocytes by reducing adipogenesis and lipogenesis, increasing fat oxidation, and inducing browning.
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Affiliation(s)
- Yoon-Young Sung
- Herbal Medicine Research Division, Korea Institute of Oriental Medicine, 1672 Yuseong-daero, Yuseong-gu, Daejeon 34054, Korea; (Y.-Y.S.); (E.S.)
| | - Eunjung Son
- Herbal Medicine Research Division, Korea Institute of Oriental Medicine, 1672 Yuseong-daero, Yuseong-gu, Daejeon 34054, Korea; (Y.-Y.S.); (E.S.)
| | - Gayoung Im
- Nova K Med Co., Ltd., 1646 Yuseong-daero, Yuseong-gu, Daejeon 34054, Korea;
| | - Dong-Seon Kim
- Herbal Medicine Research Division, Korea Institute of Oriental Medicine, 1672 Yuseong-daero, Yuseong-gu, Daejeon 34054, Korea; (Y.-Y.S.); (E.S.)
- Correspondence: ; Tel.: +82-42-868-9639
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Synergistic Effect of Bupleuri Radix and Scutellariae Radix on Adipogenesis and AMP-Activated Protein Kinase: A Network Pharmacological Approach. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2018; 2018:5269731. [PMID: 30210572 PMCID: PMC6126083 DOI: 10.1155/2018/5269731] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/20/2018] [Revised: 07/11/2018] [Accepted: 07/26/2018] [Indexed: 12/13/2022]
Abstract
Obesity has become a major health threat in developed countries. However, current medications for obesity are limited because of their adverse effects. Interest in natural products for the treatment of obesity is thus rapidly growing. Korean medicine is characterized by the wide use of herbal formulas. However, the combination rule of herbal formulas in Korean medicine lacks experimental evidence. According to Shennong's Classic of Materia Medica, the earliest book of herbal medicine, Bupleuri Radix (BR) and Scutellariae Radix (SR) possess the Sangsoo relationship, which means they have synergistic features when used together. Therefore these two are frequently used together in prescriptions such as Sosiho-Tang. In this study, we used the network pharmacological method to predict the interaction between these two herbs and then investigated the effects of BR, SR, and their combination on obesity in 3T3-L1 adipocytes. BR, SR, and BR-SR mixture significantly decreased lipid accumulation and the expressions of two major adipogenic factors, peroxisome proliferator-activated receptor-gamma (PPARγ) and CCAAT/enhancer-binding protein-alpha (C/EBPα), and their downstream genes, Adipoq, aP2, and Lipin1 in 3T3-L1 cells. In addition, the BR-SR mixture had synergistic effects compared with BR or SR on inhibition of adipogenic-gene expressions. BR and SR also inhibited the protein expressions of PPARγ and C/EBPα. Furthermore, the two extracts successfully activated AMP-activated protein kinase alpha (AMPK α), the key regulator of energy metabolism. When compared to those of BR or SR, the BR-SR mixture showed higher inhibition rates of PPARγ and C/EBPα, along with higher activation rate of AMPK. These results indicate a new potential antiobese pharmacotherapy and also provide scientific evidence supporting the usage of herbal combinations instead of mixtures in Korean medicine.
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Fang P, Yu M, Min W, Han S, Shi M, Zhang Z, Bo P. Beneficial effect of baicalin on insulin sensitivity in adipocytes of diet-induced obese mice. Diabetes Res Clin Pract 2018. [PMID: 29526684 DOI: 10.1016/j.diabres.2018.03.007] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
AIMS Although baicalin has been shown to increase glucose uptake and insulin sensitivity in skeletal muscle of mice, there is no literature available about the effect of baicalin on insulin sensitivity in adipocytes of diet-induced obese mice. METHODS In the present study, diet-induced obese mice were given 50 mg/kg baicalin intraperitoneally (i.p.) once a day for 21 days, and 3T3-L1 cells were treated with 100, 200, 400 μM baicalin for 3 h. Then insulin resistance indexes and insulin signal protein levels were examined to elucidate whether baicalin increased glucose uptake and GLUT4 translocation in adipocytes of diet-induced obese mice. RESULTS The present findings showed that administration of baicalin decreased food intake, body weight, HOMA-IR and p-p38 MAPK and pERK levels, but enhanced pAKT and PGC-1α contents, as well as GLUT4 mRNA, PGC-1α mRNA expression in adipocytes, and reversed high fat diet-induced glucose intolerance, hyperglycemia and insulin resistance in diet-induced obese mice. Moreover, baicalin treatment increased GLUT4 concentration in plasma membranes of adipocytes. CONCLUSIONS These data demonstrated that baicalin accelerated GLUT4 translocation from intracellular membrane compartments to plasma membranes in adipocytes. Baicalin plays a significant role in elevation of glucose uptake and insulin sensitivity to promote glucose clearance.
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Affiliation(s)
- Penghua Fang
- Department of Physiology, Nanjing University of Chinese Medicine Hanlin College, Taizhou, Jiangsu 225300, China; Jiangsu Key Laboratory of Integrated Traditional Chinese and Western Medicine for Prevention and Treatment of Senile Diseases, Medical College, Yangzhou University, Yangzhou 225001, China
| | - Mei Yu
- Department of Physiology, Nanjing University of Chinese Medicine Hanlin College, Taizhou, Jiangsu 225300, China
| | - Wen Min
- Department of Physiology, Nanjing University of Chinese Medicine Hanlin College, Taizhou, Jiangsu 225300, China
| | - Shiyu Han
- Department of Physiology, Nanjing University of Chinese Medicine Hanlin College, Taizhou, Jiangsu 225300, China
| | - Mingyi Shi
- Department of Physiology, Nanjing University of Chinese Medicine Hanlin College, Taizhou, Jiangsu 225300, China
| | - Zhenwen Zhang
- Department of Endocrinology, Clinical Medical College, Yangzhou University, Yangzhou, Jiangsu 225001, China.
| | - Ping Bo
- Department of Endocrinology, Clinical Medical College, Yangzhou University, Yangzhou, Jiangsu 225001, China; Jiangsu Key Laboratory of Integrated Traditional Chinese and Western Medicine for Prevention and Treatment of Senile Diseases, Medical College, Yangzhou University, Yangzhou 225001, China.
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Chen Q, Liu M, Yu H, Li J, Wang S, Zhang Y, Qiu F, Wang T. Scutellaria baicalensis regulates FFA metabolism to ameliorate NAFLD through the AMPK-mediated SREBP signaling pathway. J Nat Med 2018. [DOI: 10.1007/s11418-018-1199-5] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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Mesenchymal Stromal Cell Irradiation Interferes with the Adipogenic/Osteogenic Differentiation Balance and Improves Their Hematopoietic-Supporting Ability. Biol Blood Marrow Transplant 2018; 24:443-451. [DOI: 10.1016/j.bbmt.2017.11.007] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2017] [Accepted: 11/02/2017] [Indexed: 12/19/2022]
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Fang P, Yu M, Min W, Wan D, Han S, Shan Y, Wang R, Shi M, Zhang Z, Bo P. Effect of baicalin on GLUT4 expression and glucose uptake in myotubes of rats. Life Sci 2018; 196:156-161. [PMID: 29459024 DOI: 10.1016/j.lfs.2018.01.022] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2017] [Revised: 01/07/2018] [Accepted: 01/22/2018] [Indexed: 12/12/2022]
Abstract
AIMS Although baicalin could attenuate obesity-induced insulin resistance, the detailed mechanism of baicalin on glucose uptake has not been sufficiently explored as yet. The aim of this study was to survey if baicalin might facilitate glucose uptake and to explore its signal mechanisms in L6 myotubes. MATERIALS AND METHODS L6 myotubes were treated with 100, 200, 400 μM baicalin for 6 h, 12 h and 24 h in this study. Then 2-NBDG and insulin signal protein levels in myotubes of L6 cells were examined. KEY FINDINGS We discovered that administration of baicalin enhanced GLUT4, PGC-1α, pP38MAPK, pAKT and pAS160 contents, as well as GLUT4 mRNA and PGC-1α mRNA levels in L6 myotubes. The beneficial metabolic changes elicited by baicalin were abrogated in myotubes of L6 by P38MAPK or AKT inhibitors. SIGNIFICANCE These results suggest that baicalin promoted glucose uptake in myotubes by differential regulation on P38MAPK and AKT activity. In conclusion, these data provide insight that baicalin is a powerful and promising agent for the treament of hyperglycemia via AKT/AS160/GLUT4 and P38MAPK/PGC1α/GLUT4 pathway.
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Affiliation(s)
- Penghua Fang
- Department of Physiology, Nanjing University of Chinese Medicine Hanlin College, Taizhou, Jiangsu 225300, China; Department of Endocrinology, Clinical Medical College, Yangzhou University, Yangzhou, Jiangsu 225001, China
| | - Mei Yu
- Department of Physiology, Nanjing University of Chinese Medicine Hanlin College, Taizhou, Jiangsu 225300, China
| | - Wen Min
- Department of Physiology, Nanjing University of Chinese Medicine Hanlin College, Taizhou, Jiangsu 225300, China
| | - Dan Wan
- Jiangsu Key Laboratory of Integrated Traditional Chinese and Western Medicine for Prevention and Treatment of Senile Diseases, Medical College, Yangzhou University, Yangzhou 225001, China
| | - Shiyu Han
- Department of Physiology, Nanjing University of Chinese Medicine Hanlin College, Taizhou, Jiangsu 225300, China
| | - Yizhi Shan
- Department of Physiology, Nanjing University of Chinese Medicine Hanlin College, Taizhou, Jiangsu 225300, China
| | - Rui Wang
- Department of Physiology, Nanjing University of Chinese Medicine Hanlin College, Taizhou, Jiangsu 225300, China
| | - Mingyi Shi
- Department of Physiology, Nanjing University of Chinese Medicine Hanlin College, Taizhou, Jiangsu 225300, China
| | - Zhenwen Zhang
- Department of Endocrinology, Clinical Medical College, Yangzhou University, Yangzhou, Jiangsu 225001, China.
| | - Ping Bo
- Department of Endocrinology, Clinical Medical College, Yangzhou University, Yangzhou, Jiangsu 225001, China; Jiangsu Key Laboratory of Integrated Traditional Chinese and Western Medicine for Prevention and Treatment of Senile Diseases, Medical College, Yangzhou University, Yangzhou 225001, China.
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Fang P, Yu M, Zhang L, Wan D, Shi M, Zhu Y, Bo P, Zhang Z. Baicalin against obesity and insulin resistance through activation of AKT/AS160/GLUT4 pathway. Mol Cell Endocrinol 2017; 448:77-86. [PMID: 28359800 DOI: 10.1016/j.mce.2017.03.027] [Citation(s) in RCA: 51] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/13/2016] [Revised: 03/04/2017] [Accepted: 03/26/2017] [Indexed: 01/24/2023]
Abstract
Obesity may cause several metabolic complications, including insulin resistance and type 2 diabetes mellitus. Despite great advances in medicine, people still keep exploring novel and effective drugs for treatment of obesity and insulin resistance. The aim of this study was to survey if baicalin might ameliorate obesity-induced insulin resistance and to explore its signal mechanisms in skeletal muscles of mice. Diet-induced obese (DIO) mice were given 50 mg/kg baicalin intraperitoneally (i.p.) once a day for 21 days, and C2C12 myotubes were treated with 100, 200, 400 μM baicalin for 12 h in this study. Then insulin resistance indexes and insulin signal protein levels in skeletal muscles were examined. We discovered that administration of baicalin decreased food intake, body weight, HOMA-IR and NT-PGC-1α levels, but enhanced GLUT4, PGC-1α, pP38MAPK, pAKT and pAS160 contents, as well as GLUT4 mRNA, PGC-1α mRNA, PPARγ mRNA, GLUT1 mRNA expression in skeletal muscles of obese mice and myotubes of C2C12 cells, and reversed high fat diet-induced glucose and insulin intolerance, hyperglycemia and insulin resistance in the mice. These results suggest that baicalin is a powerful and promising agent for treatment of obesity and insulin resistance via Akt/AS160/GLUT4 and P38MAPK/PGC1α/GLUT4 pathway.
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Affiliation(s)
- Penghua Fang
- Jiangsu Key Laboratory of Integrated Traditional Chinese and Western Medicine for Prevention and Treatment of Senile Diseases, Medical College, Yangzhou University, Yangzhou 225001, China; Department of Physiology, Nanjing University of Chinese Medicine Hanlin College, Taizhou, Jiangsu, 225300, China
| | - Mei Yu
- Department of Physiology, Nanjing University of Chinese Medicine Hanlin College, Taizhou, Jiangsu, 225300, China
| | - Lei Zhang
- Jiangsu Key Laboratory of Integrated Traditional Chinese and Western Medicine for Prevention and Treatment of Senile Diseases, Medical College, Yangzhou University, Yangzhou 225001, China
| | - Dan Wan
- Jiangsu Key Laboratory of Integrated Traditional Chinese and Western Medicine for Prevention and Treatment of Senile Diseases, Medical College, Yangzhou University, Yangzhou 225001, China
| | - Mingyi Shi
- Jiangsu Key Laboratory of Integrated Traditional Chinese and Western Medicine for Prevention and Treatment of Senile Diseases, Medical College, Yangzhou University, Yangzhou 225001, China
| | - Yan Zhu
- Department of Endocrinology, Clinical Medical College, Yangzhou University, Yangzhou, Jiangsu, 225001, China
| | - Ping Bo
- Jiangsu Key Laboratory of Integrated Traditional Chinese and Western Medicine for Prevention and Treatment of Senile Diseases, Medical College, Yangzhou University, Yangzhou 225001, China; Department of Endocrinology, Clinical Medical College, Yangzhou University, Yangzhou, Jiangsu, 225001, China.
| | - Zhenwen Zhang
- Department of Endocrinology, Clinical Medical College, Yangzhou University, Yangzhou, Jiangsu, 225001, China.
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Baba S, Ueno Y, Kikuchi T, Tanaka R, Fujimori K. A Limonoid Kihadanin B from Immature Citrus unshiu Peels Suppresses Adipogenesis through Repression of the Akt-FOXO1-PPARγ Axis in Adipocytes. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2016; 64:9607-9615. [PMID: 27977180 DOI: 10.1021/acs.jafc.6b04521] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Citrus limonoids are secondary metabolites and exhibit a variety of biological activities. In this study, we elucidated the suppression of adipogenesis by a Citrus limonoid kihadanin B and determined its molecular mechanism in mouse 3T3-L1 adipocytes. Kihadanin B was purified from the peels of immature Citrus unshiu by HPLC, and its chemical structure was determined by NMR and mass spectrometry. Kihadanin B reduced the lipid accumulation with the reduction of the expression levels of the adipogenic and lipogenic genes, but did not affect lipolysis in adipocytes. Phosphorylation levels of Akt and a forkhead transcriptional factor, FOXO1, a repressor of PPARγ, were lowered by kihadanin B. Furthermore, kihadanin B increased the binding level of FOXO1 to the PPARγ gene promoter in adipocytes. These results indicate that a Citrus limonoid kihadanin B repressed the adipogenesis by decreasing lipid accumulation through the suppression of the Akt-FOXO1-PPARγ axis in 3T3-L1 adipocytes.
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Affiliation(s)
- Shizuka Baba
- Laboratory of Biodefense and Regulation, Osaka University of Pharmaceutical Sciences , 4-20-1 Nasahara, Takatsuki, Osaka 569-1094, Japan
| | - Yasuaki Ueno
- Laboratory of Medicinal Chemistry, Osaka University of Pharmaceutical Sciences , 4-20-1 Nasahara, Takatsuki, Osaka 569-1094, Japan
| | - Takashi Kikuchi
- Laboratory of Medicinal Chemistry, Osaka University of Pharmaceutical Sciences , 4-20-1 Nasahara, Takatsuki, Osaka 569-1094, Japan
| | - Reiko Tanaka
- Laboratory of Medicinal Chemistry, Osaka University of Pharmaceutical Sciences , 4-20-1 Nasahara, Takatsuki, Osaka 569-1094, Japan
| | - Ko Fujimori
- Laboratory of Biodefense and Regulation, Osaka University of Pharmaceutical Sciences , 4-20-1 Nasahara, Takatsuki, Osaka 569-1094, Japan
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Guo YR, Choung SY. Germacrone inhibits adipogenesis and stimulates lipolysis via the AMP-activated protein kinase signalling pathway in 3T3-L1 preadipocytes. J Pharm Pharmacol 2016; 69:202-212. [PMID: 27917474 DOI: 10.1111/jphp.12674] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2016] [Accepted: 11/06/2016] [Indexed: 12/12/2022]
Abstract
OBJECTIVES In a previous study, we reported that Aster spathulifolius Maxim extract (ASE) inhibited lipid accumulation and adipocyte differentiation in 3T3-L1 cells. Of the components in ASE, germacrone (GM) was identified as a potent bioactive constituent. GM is known for its anticancer and antiviral activity. However, the effects of GM and the molecular mechanism by which GM regulates adipogenesis and lipolysis were not reported. Therefore, we investigated the effect of GM on adipogenesis and lipolysis and to elucidate its underlying molecular mechanism. METHODS We analysed the contents of intracellular triglyceride and carried out Western blotting and RT-qPCR to investigate the underlying mechanism. KEY FINDINGS We demonstrate that GM suppresses adipogenic differentiation and the increase in lipolysis in 3T3-L1 cells. In particular, GM down-regulates the expression of early adipogenesis-related genes (e.g. KLF4, KLF5, C/EBP-β and C/EBP-δ) and major adipogenesis-related genes (C/EBP-α and PPAR-γ). Furthermore, GM increases the protein levels of phosphorylated AMP-activated protein kinase α (AMPKα), phosphorylated acetyl-coenzyme A carboxylase (ACC) and carnitine palmitoyltransferase (CPT1). CONCLUSIONS Our results suggest that GM may be a potent bioactive anti-adipogenic and lipolytic constituent via the regulation of adipogenesis, lipolysis and the AMPKα pathway.
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Affiliation(s)
- Yuan-Ri Guo
- Department of Preventive Pharmacy and Toxicology, College of Pharmacy, Kyung Hee University, Seoul, Korea
| | - Se-Young Choung
- Department of Preventive Pharmacy and Toxicology, College of Pharmacy, Kyung Hee University, Seoul, Korea.,Department of Life and Nanopharmaceutical Sciences, Graduate School, Kyung Hee University, Seoul, Korea
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15
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Li KK, Wong HL, Hu T, Zhang C, Han XQ, Ye CX, Leung PC, Cheng BH, Ko CH. Impacts ofCamelliakucha and its main chemical components on the lipid accumulation in 3T3-L1 adipocytes. Int J Food Sci Technol 2016. [DOI: 10.1111/ijfs.13236] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Kai Kai Li
- College of Food Science and Technology; Huazhong Agricultural University; Wuhan 430070 China
- Institute of Chinese Medicine; The Chinese University of Hong Kong; Shatin New Territories Hong Kong SAR 999077 China
| | - Hing Lok Wong
- Institute of Chinese Medicine; The Chinese University of Hong Kong; Shatin New Territories Hong Kong SAR 999077 China
| | - Tianyong Hu
- Shenzhen Key Laboratory of ENT; Longgang ENT hospital & Institute of ENT; Shenzhen 518172 China
| | - Cheng Zhang
- Institute of Chinese Medicine; The Chinese University of Hong Kong; Shatin New Territories Hong Kong SAR 999077 China
| | - Xiao Qiang Han
- Institute of Chinese Medicine; The Chinese University of Hong Kong; Shatin New Territories Hong Kong SAR 999077 China
| | - Chuang Xing Ye
- Department of Biology; School of Life Sciences; Sun Yat-Sen University; Guangzhou 510275 China
| | - Ping Chung Leung
- Institute of Chinese Medicine; The Chinese University of Hong Kong; Shatin New Territories Hong Kong SAR 999077 China
| | - Bao Hui Cheng
- Shenzhen Key Laboratory of ENT; Longgang ENT hospital & Institute of ENT; Shenzhen 518172 China
| | - Chun Hay Ko
- Institute of Chinese Medicine; The Chinese University of Hong Kong; Shatin New Territories Hong Kong SAR 999077 China
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16
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Tan X, Liu P, Huang Y, Zhou L, Yang Y, Wang H, Yu B, Meng X, Zhang X, Gao F. Phosphoproteome Analysis of Invasion and Metastasis-Related Factors in Pancreatic Cancer Cells. PLoS One 2016; 11:e0152280. [PMID: 27014871 PMCID: PMC4807880 DOI: 10.1371/journal.pone.0152280] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2015] [Accepted: 03/12/2016] [Indexed: 01/04/2023] Open
Abstract
Mechanisms of abnormal protein phosphorylation that regulate cell invasion and metastasis in pancreatic cancer remain obscure. In this study, we used high-throughput phosphorylation array to test two pancreatic cancer cell lines (PC-1 cells with a low, and PC-1.0 cells with a high potential for invasion and metastasis). We noted that a total of 57 proteins revealed a differential expression (fold change ≥ 2.0). Six candidate proteins were further validated by western blot with results found to be accordance with the array. Of 57 proteins, 32 up-regulated proteins (e.g. CaMK1-α and P90RSK) were mainly involved in ErbB and neurotrophin signaling pathways as determined using DAVID software, while 25 down-regulated proteins (e.g. BID and BRCA1) were closely involved in apoptosis and p53 signaling pathways. Moreover, four proteins (AKT1, Chk2, p53 and P70S6K) with different phosphorylation sites were found, not only among up-regulated, but also among down-regulated proteins. Importantly, specific phosphorylation sites can affect cell biological functions. CentiScaPe software calculated topological characteristics of each node in the protein-protein interaction (PPI) network: we found that AKT1 owns the maximum node degrees and betweenness in the up-regulation protein PPI network (26 nodes, average path length: 1.89, node degrees: 6.62±4.18, betweenness: 22.23±35.72), and p53 in the down-regulation protein PPI network (17 nodes, average path length: 2.04, node degrees: 3.65±2.47, betweenness: 16.59±29.58). In conclusion, the identification of abnormal protein phosphorylation related to invasion and metastasis may allow us to identify new biomarkers in an effort to develop novel therapeutic drug targets for pancreatic cancer treatment.
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Affiliation(s)
- Xiaodong Tan
- Department of General Surgery, Shengjing Hospital of China Medical University, Shenyang, Liaoning, P.R.China
- * E-mail:
| | - Peng Liu
- Department of General Surgery, Shengjing Hospital of China Medical University, Shenyang, Liaoning, P.R.China
| | - Yinpeng Huang
- Department of General Surgery, Shengjing Hospital of China Medical University, Shenyang, Liaoning, P.R.China
| | - Lei Zhou
- Department of General Surgery, Shengjing Hospital of China Medical University, Shenyang, Liaoning, P.R.China
| | - Yifan Yang
- Department of General Surgery, Shengjing Hospital of China Medical University, Shenyang, Liaoning, P.R.China
| | - Huaitao Wang
- Department of General Surgery, Shengjing Hospital of China Medical University, Shenyang, Liaoning, P.R.China
| | - Boqiang Yu
- Department of General Surgery, Shengjing Hospital of China Medical University, Shenyang, Liaoning, P.R.China
| | - Xiangli Meng
- Department of General Surgery, Shengjing Hospital of China Medical University, Shenyang, Liaoning, P.R.China
| | - Xiaobo Zhang
- Department of General Surgery, Shengjing Hospital of China Medical University, Shenyang, Liaoning, P.R.China
| | - Feng Gao
- Department of General Surgery, Shengjing Hospital of China Medical University, Shenyang, Liaoning, P.R.China
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17
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Song YS, Lee DH, Yu JH, Oh DK, Hong JT, Yoon DY. Promotion of adipogenesis by 15-(S)-hydroxyeicosatetraenoic acid. Prostaglandins Other Lipid Mediat 2016; 123:1-8. [DOI: 10.1016/j.prostaglandins.2016.02.001] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2015] [Revised: 02/05/2016] [Accepted: 02/17/2016] [Indexed: 10/22/2022]
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18
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Kim SJ, Choung SY. Inhibitory effects of Aster spathulifolius extract on adipogenesis and lipid accumulation in 3T3-L1 preadipocytes. ACTA ACUST UNITED AC 2015; 68:107-18. [PMID: 26471469 DOI: 10.1111/jphp.12485] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2015] [Accepted: 07/28/2015] [Indexed: 12/16/2022]
Abstract
OBJECTIVES Aster spathulifolius Maxim (AS), known for its anti-viral and anti-allergic activity, is also known to reduce body weight gain in high fat diet-induced obese rats. But its molecular mechanism of the anti-obesity effects is still unclear. So, we investigated the inhibitory effect of AS extract (ASE) on adipogenesis and lipid accumulation to determine the underlying cellular molecular mechanism. METHODS To perform this study, the contents of intracellular triglyceride were analysed. Real-time polymerase chain reaction and Western blotting were carried out to investigate the expression of adipogenic transcriptional factors. KEY FINDINGS ASE showed the suppression of adipogenic differentiation and the considerable reduction of the lipid accumulation in 3T3-L1 cells. Especially, ASE inhibited the early stage of differentiation via the downregulation of C/EBP-β and C/EBP-δ, which are early adipogenic factors. Major adipogenic factors, such as PPAR-γ and C/EBP-α, were also subsequently inhibited. These findings were supported by Oil Red O staining and intracellular triglyceride levels. A molecular mechanism liking the effect of ASE was identified through the activation of AMPKα pathway. ASE increased protein levels of phosphorylated AMPKα and phosphorylated ACC. CONCLUSIONS ASE showed anti-adipogenic and anti-lipogenic effects through the regulation of adipogenic factors and AMPKα pathway.
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Affiliation(s)
- Sa-Jic Kim
- Department of Life and Nanopharmaceutical Science of Pharmacy, College of Pharmacy, Kyung Hee University, Seoul, Korea
| | - Se-Young Choung
- Department of Life and Nanopharmaceutical Science of Pharmacy, College of Pharmacy, Kyung Hee University, Seoul, Korea.,Department of Preventive Pharmacy and Toxicology, College of Pharmacy, Kyung Hee University, Seoul, Korea
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Pisonero-Vaquero S, Martínez-Ferreras Á, García-Mediavilla MV, Martínez-Flórez S, Fernández A, Benet M, Olcoz JL, Jover R, González-Gallego J, Sánchez-Campos S. Quercetin ameliorates dysregulation of lipid metabolism genes via the PI3K/AKT pathway in a diet-induced mouse model of nonalcoholic fatty liver disease. Mol Nutr Food Res 2015; 59:879-93. [PMID: 25712622 DOI: 10.1002/mnfr.201400913] [Citation(s) in RCA: 83] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2014] [Revised: 02/03/2015] [Accepted: 02/09/2015] [Indexed: 12/12/2022]
Abstract
SCOPE Flavonoids and related compounds seem to have favorable effects on nonalcoholic fatty liver disease (NAFLD) progression, although the exact mechanisms implicated are poorly understood. In this study, we aimed to investigate the effect of the flanovol quercetin on gene expression deregulation involved in the development of NAFLD, as well as the possible implication of phosphatidylinositol 3-kinase (PI3K)/AKT pathway modulation. METHODS AND RESULTS We used an in vivo model based on methionine- and choline-deficient (MCD) diet-fed mice and an in vitro model consisting of Huh7 cells incubated with MCD medium. MCD-fed mice showed classical pathophysiological characteristics of nonalcoholic steatohepatitis, associated with altered transcriptional regulation of fatty acid uptake- and trafficking-related gene expression, with increased lipoperoxidation. PI3K/AKT pathway was activated by MCD and triggered gene deregulation causing either activation or inhibition of all studied genes as demonstrated through cell incubation with the PI3K-inhibitor LY294002. Treatment with quercetin reduced AKT phosphorylation, and oxidative/nitrosative stress, inflammation and lipid metabolism-related genes displayed a tendency to normalize in both in vivo and in vitro models. CONCLUSION These results place quercetin as a potential therapeutic strategy for preventing NAFLD progression by attenuating gene expression deregulation, at least in part through PI3K/AKT pathway inactivation.
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