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Lee D, Hong S, Jung K, Choi S, Kang KS. Suppressive Effects of Flavonoids on Macrophage-Associated Adipocyte Inflammation in a Differentiated Murine Preadipocyte 3T3-L1 Cells Co-Cultured with a Murine Macrophage RAW264.7 Cells. PLANTS (BASEL, SWITZERLAND) 2022; 11:3552. [PMID: 36559664 PMCID: PMC9783032 DOI: 10.3390/plants11243552] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Revised: 12/11/2022] [Accepted: 12/13/2022] [Indexed: 06/17/2023]
Abstract
The suppressive effects of flavonoids on macrophage-associated adipocyte inflammation in a differentiated murine preadipocyte cell line (3T3-L1) co-cultured with a murine macrophage cell line (RAW264.7) were evaluated. Extracellular lipid accumulation was investigated via Oil Red O staining. The expression levels of adipogenesis- and inflammation-associated proteins, including CCAAT/enhancer-binding protein (C/EBP)-α, inducible nitric oxide synthase (iNOS), C/EBPβ, peroxisome proliferator-activated receptor γ (PPARγ), and cyclooxygenase-2 (COX-2), were determined via Western blotting. Proinflammatory cytokines, including monocyte chemoattractant protein 1 (MCP-1) and interleukin-6 (IL-6), were assessed using enzyme-linked immunosorbent assay kits. We found that silybin, formononetin, and diosmetin inhibited lipid accumulation and production of proinflammatory cytokines in the co-cultures of 3T3-L1 and RAW264.7 cells. Moreover, they inhibited the protein expression of PPARγ, C/EBPα, COX-2, C/EBPβ, and iNOS in the co-cultures of 3T3-L1 and RAW264.7 cells. These data support that silybin, formononetin, and diosmetin inhibit macrophage-associated adipocyte inflammation and lipid accumulation.
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Affiliation(s)
- Dahae Lee
- Department of Preventive Medicine, College of Korean Medicine, Gachon University, Seongnam 13120, Republic of Korea
| | - Sukyong Hong
- College of Pharmacy, CHA University, Sungnam 13844, Republic of Korea
| | - Kiwon Jung
- College of Pharmacy, CHA University, Sungnam 13844, Republic of Korea
- Oncobix Co., Ltd., Yongin-si 16950, Republic of Korea
| | - Sungyoul Choi
- Department of Neuropsychiatry, College of Korean Medicine, Gachon University, Seongnam 13120, Republic of Korea
| | - Ki Sung Kang
- Department of Preventive Medicine, College of Korean Medicine, Gachon University, Seongnam 13120, Republic of Korea
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Peanut Shell Extract and Luteolin Regulate Lipid Metabolism and Induce Browning in 3T3-L1 Adipocytes. Foods 2022; 11:foods11172696. [PMID: 36076880 PMCID: PMC9455591 DOI: 10.3390/foods11172696] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Revised: 08/26/2022] [Accepted: 08/31/2022] [Indexed: 11/29/2022] Open
Abstract
Peanut shells are agricultural waste products that require utilization. The freeze-dried ethanolic peanut shell extract (PSE) contained 10.01 ± 0.55 mg/g of luteolin (LUT) with a total polyphenol content of 18.11 ± 0.88 mg GAE/g. Thus, LUT is one of the major polyphenolic components in PSE. Although PSE displays antibacterial and neurotrophic activities, minimal research is available addressing its potential role in lipid metabolism. This study investigated the role of PSE in terms of inhibiting adipogenesis, accelerating lipolysis, and promoting lipid browning using the 3T3-L1 cell line. Without affecting cell viability, high concentrations of PSE and LUT prevented adipogenesis by reducing the mRNA levels of C/EBPα, PPARγ, and SREBP1-c, and increasing the protein levels of pACC and pAMPK. Moreover, PSE and LUT induced lipolysis by activating lipolytic proteins, and enhanced the protein expressions of the brown adipocyte-specific markers, UCP1, PGC-1α, and SIRT1 in fully differentiated 3T3-L1 adipocytes. Increased mitochondrial biosynthesis provided additional evidence in favor of these findings. Due to their anti-obesity properties, it is proposed that PSE and LUT could be used as potential dietary supplements.
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Yang XD, Ge XC, Jiang SY, Yang YY. Potential lipolytic regulators derived from natural products as effective approaches to treat obesity. Front Endocrinol (Lausanne) 2022; 13:1000739. [PMID: 36176469 PMCID: PMC9513423 DOI: 10.3389/fendo.2022.1000739] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/22/2022] [Accepted: 08/23/2022] [Indexed: 11/13/2022] Open
Abstract
Epidemic obesity is contributing to increases in the prevalence of obesity-related metabolic diseases and has, therefore, become an important public health problem. Adipose tissue is a vital energy storage organ that regulates whole-body energy metabolism. Triglyceride degradation in adipocytes is called lipolysis. It is closely tied to obesity and the metabolic disorders associated with it. Various natural products such as flavonoids, alkaloids, and terpenoids regulate lipolysis and can promote weight loss or improve obesity-related metabolic conditions. It is important to identify the specific secondary metabolites that are most effective at reducing weight and the health risks associated with obesity and lipolysis regulation. The aims of this review were to identify, categorize, and clarify the modes of action of a wide diversity of plant secondary metabolites that have demonstrated prophylactic and therapeutic efficacy against obesity by regulating lipolysis. The present review explores the regulatory mechanisms of lipolysis and summarizes the effects and modes of action of various natural products on this process. We propose that the discovery and development of natural product-based lipolysis regulators could diminish the risks associated with obesity and certain metabolic conditions.
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Affiliation(s)
- Xi-Ding Yang
- Department of Pharmacy, Second Xiangya Hospital of Central South University, Changsha, China
- Phase I Clinical Trial Center, The Second Xiangya Hospital of Central South University, Changsha, China
| | - Xing-Cheng Ge
- Xiangxing College, Hunan University of Chinese Medicine, Changsha, China
| | - Si-Yi Jiang
- Department of Pharmacy, Medical College, Yueyang Vocational Technical College, YueYang, China
| | - Yong-Yu Yang
- Department of Pharmacy, Second Xiangya Hospital of Central South University, Changsha, China
- Hunan Provincial Engineering Research Central of Translational Medical and Innovative Drug, The Second Xiangya Hospital of Central South University, Changsha, China
- *Correspondence: Yong-Yu Yang,
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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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Imran M, Saeed F, Hussain G, Imran A, Mehmood Z, Gondal TA, El‐Ghorab A, Ahmad I, Pezzani R, Arshad MU, Bacha U, Shariarti MA, Rauf A, Muhammad N, Shah ZA, Zengin G, Islam S. Myricetin: A comprehensive review on its biological potentials. Food Sci Nutr 2021; 9:5854-5868. [PMID: 34646551 PMCID: PMC8498061 DOI: 10.1002/fsn3.2513] [Citation(s) in RCA: 50] [Impact Index Per Article: 16.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Revised: 06/27/2021] [Accepted: 07/07/2021] [Indexed: 12/13/2022] Open
Abstract
Myricetin is a critical nutritive component of diet providing immunological protection and beneficial for maintaining good health. It is found in fruits, vegetables, tea, and wine. The families Myricaceae, Polygonaceae, Primulaceae, Pinaceae, and Anacardiaceae are the richest sources of myricetin. Different researchers explored the therapeutic potential of this valuable constituent such as anticancer, antidiabetic, antiobesity, cardiovascular protection, osteoporosis protection, anti-inflammatory, and hepatoprotective. In addition to these, the compound has been tested for cancer and diabetic mellitus during clinical trials. Health benefits of myricetin are related to its impact on different cell processes, such as apoptosis, glycolysis, cell cycle, energy balance, lipid level, serum protein concentrations, and osteoclastogenesis. This review explored the potential health benefits of myricetin with a specific emphasis on its mechanism of action, considering the most updated and novel findings in the field.
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Affiliation(s)
- Muhammad Imran
- Faculty of Allied Health SciencesUniversity Institute of Diet and Nutritional SciencesThe University of LahoreLahorePakistan
| | - Farhan Saeed
- Department of Food ScienceInstitute of Home and Food SciencesGovernment College UniversityFaisalabadPakistan
| | - Ghulam Hussain
- Neurochemicalbiology and Genetics Laboratory (NGL)Department of PhysiologyFaculty of Life SciencesGovernment College UniversityFaisalabadPakistan
| | - Ali Imran
- Department of Food ScienceInstitute of Home and Food SciencesGovernment College UniversityFaisalabadPakistan
| | - Zaffar Mehmood
- School of Life SciencesForman Christian College (A Chartered University)LahorePakistan
| | - Tanweer Aslam Gondal
- School of Exercise and NutritionFaculty of HealthDeakin UniversityBurwoodVictoriaAustralia
| | - Ahmed El‐Ghorab
- College of Science, Chemistry DepartmentJouf UniversitySakakaSaudi Arabia
| | - Ishtiaque Ahmad
- Department of Dairy TechnologyUniversity of Veterinary and Animal SciencesLahorePakistan
| | - Raffaele Pezzani
- Endocrinology UnitDepartment of Medicine (DIMED)University of PadovaPadovaItaly
- AIROBAssociazione Italiana per la Ricerca Oncologica di BasePadovaItaly
| | - Muhammad Umair Arshad
- Department of Food ScienceInstitute of Home and Food SciencesGovernment College UniversityFaisalabadPakistan
| | - Umar Bacha
- School of Health Sciences (SHS)University of Management and TechnologyJohar Town, LahorePakistan
| | - Mohammad Ali Shariarti
- Department of Technology of Food ProductionsK.G. RazumovskyMoscow State University of Technologies and Management (the First Cossack University)MoscowRussian Federation
| | - Abdur Rauf
- Department of ChemistryUniversity of SwabiSwabiKhyber Pakhtunkhwa (KP)Pakistan
| | - Naveed Muhammad
- Department of PharmacyAbdul Wali Khan UniversityMardanPakistan
| | - Zafar Ali Shah
- Department of ChemistryUniversity of SwabiSwabiKhyber Pakhtunkhwa (KP)Pakistan
| | - Gokhan Zengin
- Department of BiologyScience FacultySelcuk UniversityKonyaTurkey
| | - Saiful Islam
- Institute of Nutrition and Food ScienceUniversity of DhakaDhakaBangladesh
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Choi Y, Kim DS, Lee MC, Park S, Lee JW, Om AS. Effects of Bacillus Subtilis-Fermented White Sword Bean Extract on Adipogenesis and Lipolysis of 3T3-L1 Adipocytes. Foods 2021; 10:1423. [PMID: 34205436 PMCID: PMC8235212 DOI: 10.3390/foods10061423] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2021] [Revised: 06/11/2021] [Accepted: 06/14/2021] [Indexed: 12/13/2022] Open
Abstract
To investigate the adipogenesis and lipolysis effects of the Bacillus subtilis-fermented white sword bean extract (FWSBE) on 3T3-L1 adipocytes, we treated 3T3-L1 preadipocytes before and after differentiation with FWSBE and measured triglyceride, free glycerol, mRNA, and protein levels. First, FWSBE reduced the cell viability of 3T3-L1 pre-adipocytes under 1000 µg/mL conditions. Triglyceride accumulation in 3T3-L1 pre-adipocytes was suppressed, and free glycerol content in mature 3T3-L1 adipocytes was increased in the FWSBE treatment groups, indicating that FWSBE has anti-obesity effects. Further, FWSBE suppressed adipogenesis in 3T3-L1 pre-adipocytes by lowering the protein levels of C/EBPα, PPARγ, and FAS and increasing the level of pACC and pAMPK. Additionally, FWSBE promoted lipolysis in mature 3T3-L1 adipocytes by increasing the transcription levels of Ppara, Acox, and Lcad and the protein levels of pHSL and ATGL. Thus, we suggest that FWSBE can be a potential dietary supplement because of its anti-obesity properties.
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Affiliation(s)
- Yujeong Choi
- Department of Food and Nutrition, College of Human Ecology, Hanyang University, Seoul 04763, Korea; (Y.C.); (D.-S.K.); (M.-C.L.); (S.P.); (J.-W.L.)
| | - Da-Som Kim
- Department of Food and Nutrition, College of Human Ecology, Hanyang University, Seoul 04763, Korea; (Y.C.); (D.-S.K.); (M.-C.L.); (S.P.); (J.-W.L.)
| | - Min-Chul Lee
- Department of Food and Nutrition, College of Human Ecology, Hanyang University, Seoul 04763, Korea; (Y.C.); (D.-S.K.); (M.-C.L.); (S.P.); (J.-W.L.)
| | - Seulgi Park
- Department of Food and Nutrition, College of Human Ecology, Hanyang University, Seoul 04763, Korea; (Y.C.); (D.-S.K.); (M.-C.L.); (S.P.); (J.-W.L.)
| | - Joo-Won Lee
- Department of Active Aging Industry, Division of Industrial Information Studies, Hanyang University, Seoul 04763, Korea
| | - Ae-Son Om
- Department of Food and Nutrition, College of Human Ecology, Hanyang University, Seoul 04763, Korea; (Y.C.); (D.-S.K.); (M.-C.L.); (S.P.); (J.-W.L.)
- Department of Active Aging Industry, Division of Industrial Information Studies, Hanyang University, Seoul 04763, Korea
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Coêlho CFF, Souza ILS, Chagas VT, Ribeiro NLX, Pinto BAS, França LM, Paes AMDA. Myricetin improves metabolic outcomes but not cognitive deficit associated to metabolic syndrome in male mice. Food Funct 2021; 12:3586-3596. [PMID: 33900338 DOI: 10.1039/d1fo00073j] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
Myricetin is a flavonol highly prevalent in edible vegetables and fruits, with recognized hypoglycemic and anti-obesity effects, besides great antioxidant capacity. Thus, this study sought to investigate whether myricetin is able to improve metabolic and behavioral outcomes found in monosodium l-glutamate (MSG) obese mice, a model of metabolic syndrome characterized by early hyperinsulinemia associated to obesity, dyslipidemia, hepatic steatosis, anxiety and cognitive deficit. Newborn male mice received MSG (4 mg kg-1 day-1, s.c.) on alternate days during the first 10 days of life for obesity induction, while control pups received equimolar saline solution. From postnatal day 90 to 135, MSG mice were orally treated with myricetin (50 mg kg-1 day-1) or distilled water, while control animals received vehicle. During the last week of treatment, all groups were submitted to behavioral tests: open field maze, elevated plus maze and Morris water maze. At the end of treatment, animals were euthanized for collection of liver, serum and adipose tissue fat pads. Myricetin treatment reduced the elevated serum levels of glucose and triglycerides, typically found in MSG mice, as well as restored peripheral insulin sensitivity and liver steatosis. Moreover, myricetin ameliorated the lack of thigmotaxis and exploratory behavior, but did not improve the cognitive deficit presented by MSG mice. Therefore, this study contributes to the pharmacological validation of myricetin as an affordable and healthy therapeutic adjuvant for the treatment of metabolic syndrome and most of its comorbidities.
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Affiliation(s)
- Caio Fernando Ferreira Coêlho
- Laboratory of Experimental Physiology, Health Sciences Graduate Program, Federal University of Maranhão, 1966, São Luís, MA 65080-805, Brazil.
| | - Ivana Letícia Santos Souza
- Laboratory of Experimental Physiology, Health Sciences Graduate Program, Federal University of Maranhão, 1966, São Luís, MA 65080-805, Brazil.
| | - Vinicyus Teles Chagas
- Laboratory of Experimental Physiology, Health Sciences Graduate Program, Federal University of Maranhão, 1966, São Luís, MA 65080-805, Brazil. and Department of Morphological Sciences, Federal University of Maranhão, 1966, São Luís, MA 65080-805, Brazil
| | - Nathalee Liberal Xavier Ribeiro
- Laboratory of Experimental Physiology, Health Sciences Graduate Program, Federal University of Maranhão, 1966, São Luís, MA 65080-805, Brazil.
| | - Bruno Araújo Serra Pinto
- Laboratory of Experimental Physiology, Health Sciences Graduate Program, Federal University of Maranhão, 1966, São Luís, MA 65080-805, Brazil. and Department of Physiological Sciences, Federal University of Maranhão, 1966, São Luís, MA 65080-805, Brazil
| | - Lucas Martins França
- Laboratory of Experimental Physiology, Health Sciences Graduate Program, Federal University of Maranhão, 1966, São Luís, MA 65080-805, Brazil. and Department of Physiological Sciences, Federal University of Maranhão, 1966, São Luís, MA 65080-805, Brazil
| | - Antonio Marcus de Andrade Paes
- Laboratory of Experimental Physiology, Health Sciences Graduate Program, Federal University of Maranhão, 1966, São Luís, MA 65080-805, Brazil. and Department of Physiological Sciences, Federal University of Maranhão, 1966, São Luís, MA 65080-805, Brazil
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Lou HX, Fu WC, Chen JX, Li TT, Jiang YY, Liu CH, Zhang W. Alisol A 24-acetate stimulates lipolysis in 3 T3-L1 adipocytes. BMC Complement Med Ther 2021; 21:128. [PMID: 33888116 PMCID: PMC8063434 DOI: 10.1186/s12906-021-03296-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2020] [Accepted: 04/02/2021] [Indexed: 01/22/2023] Open
Abstract
BACKGROUND Alisol A 24-acetate (AA-24-a), one of the main active triterpenes isolated from the well-known medicinal plant Alisma orientale (Sam.) Juz., exhibits multiple biological activities including hypolipidemic activity. However, its effect on lipid metabolism in adipocytes remains unclear. The present study aimed to clarify the effect of AA-24-a on adipocyte lipolysis and to determine its potential mechanism of action using 3 T3-L1 cells. METHODS We assayed the release of glycerol into culture medium of 3 T3-L1 cells under treatment with AA-24-a. Protein and mRNA expression and phosphorylation levels of the main lipases and kinases involved in lipolysis regulation were determined by quantitative polymerase chain reaction and western blotting. Specific inhibitors of protein kinase A (PKA; H89) and extracellular signal-regulated kinase (ERK; PD98059), which are key enzymes in relevant signaling pathways, were used to examine their roles in AA-24-a-stimulated lipolysis. RESULTS AA-24-a significantly stimulated neutral lipolysis in fully differentiated adipocytes. To determine the underlying mechanism, we assessed the changes in mRNA and protein levels of key lipolysis-related genes in the presence or absence of H89 and PD98059. Both inhibitors reduced AA-24-a-induced lipolysis. Moreover, pretreatment with H89 attenuated AA-24-a-induced phosphorylation of hormone-sensitive lipase at Ser660, while pretreatment with PD98059 attenuated AA-24-a-induced downregulation of peroxisome proliferator-activated receptor-γ and perilipin A. CONCLUSIONS Our results indicate that AA-24-a promoted neutral lipolysis in 3 T3-L1 adipocytes by activating PKA-mediated phosphorylation of hormone-sensitive lipase and ERK- mediated downregulation of expression of perilipin A.
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Affiliation(s)
- Hai-Xia Lou
- School of Life Sciences, East China Normal University, 500 Dongchuan Road, Shanghai, 200241, China
| | - Wen-Cheng Fu
- School of Life Sciences, East China Normal University, 500 Dongchuan Road, Shanghai, 200241, China
| | - Jia-Xiang Chen
- School of Life Sciences, East China Normal University, 500 Dongchuan Road, Shanghai, 200241, China
| | - Tian-Tian Li
- School of Life Sciences, East China Normal University, 500 Dongchuan Road, Shanghai, 200241, China
| | - Ying-Ying Jiang
- School of Life Sciences, East China Normal University, 500 Dongchuan Road, Shanghai, 200241, China
| | - Chun-Hui Liu
- China National Institute of Standardization, 4 Zhichun Road, Beijing, 100191, China.
| | - Wen Zhang
- School of Life Sciences, East China Normal University, 500 Dongchuan Road, Shanghai, 200241, China.
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Antioxidant Activity of Sprouts Extracts Is Correlated with Their Anti-Obesity and Anti-Inflammatory Effects in High-Fat Diet-Fed Mice. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2021; 2021:8367802. [PMID: 33643424 PMCID: PMC7902152 DOI: 10.1155/2021/8367802] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/22/2020] [Revised: 01/22/2021] [Accepted: 01/30/2021] [Indexed: 01/24/2023]
Abstract
Obesity is closely associated with oxidative stress and chronic inflammation leading to related metabolic diseases. Some natural extracts or polyphenols reportedly possess anti-obesity and anti-inflammatory effects as well as antioxidant activity. In this study, we assessed the correlations between the antioxidant, anti-obesity, and anti-inflammatory activities of plant extracts with potent antioxidant activity in diet-induced obese mice. Sprouts of Cedrela sinensis (CS) and Oenothera biennis L. (OB) were selected as the most potent antioxidant plant based on analysis of in vitro antioxidant activity of the extracts of ten different edible plants. C57BL/6 mice were fed with a high-fat diet (HFD) and orally treated with 50% ethanol extract of CS or OB at 50 or 100 mg/kg body weight 5 days a week for 14 weeks. Body weight gain, weight of adipose tissue, adipocyte size, and levels of lipid metabolism, inflammation, and oxidative stress markers were investigated. The CS or OB extract reduced body weight gain, visceral adipose tissue weight, adipocyte size, and plasma leptin levels, and expressions of adipogenic genes (PPARγ and fatty acid synthase) in the adipose tissue and liver of HFD-fed mice. Both extracts also reduced mRNA levels of pro-inflammatory cytokines (IL-6 and TNF-α) and oxidative stress-related genes (heme oxygenase- (HO-) 1 and p40phox). Body weight gain of mice was significantly correlated with visceral adipose tissue weight and adipocyte size. Body weight gain and adipocyte size were significantly correlated with plasma total cholesterol and 8-epi PGF2α levels, mRNA levels of leptin, HO-1, p40phox, and CD-11 in the adipose tissue, and mRNA levels of TNF-α in the adipose tissue and liver. These results suggest that the CS and OB extracts with potent antioxidant activity may inhibit fat deposition in adipose tissue and subsequent inflammation.
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10
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Rufino AT, Costa VM, Carvalho F, Fernandes E. Flavonoids as antiobesity agents: A review. Med Res Rev 2020; 41:556-585. [PMID: 33084093 DOI: 10.1002/med.21740] [Citation(s) in RCA: 66] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2020] [Revised: 09/02/2020] [Accepted: 09/30/2020] [Indexed: 12/11/2022]
Abstract
Obesity is a global health problem that affects all age groups in both developing and developed countries. In recent years, the prevalence of overweight and obesity has reached pandemic levels, resulting in a dramatic increase in the incidence of various comorbidities, such as cardiovascular diseases, type 2 diabetes, and cancer, consequently leading to massive health and socioeconomic burdens. Together with lifestyle changes, antiobesity pharmacotherapy is gaining momentum as an adjunctive treatment. However, the available pharmacological approaches have limited use owing to either significant adverse effects or low efficacy. Over the years, natural products have been an important source of lead compounds for drug discovery. Among these, flavonoids are associated with important biological effects and health-promoting activities. In this review, we discuss the modulatory effects of flavonoids on obesity and their potential mechanisms of action. The literature strongly suggests that most common flavonoids demonstrate a pronounced effect on obesity as shown by their ability to lower body weight, fat mass, and plasma triglycerides/cholesterol, both in in vitro and in vivo models. The impact of flavonoids on obesity can be observed through different mechanisms: reducing food intake and fat absorption, increasing energy expenditure, modulating lipid metabolism, or regulating gut microbiota profile. A better understanding of the known antiobesity mechanisms of flavonoids will enable their potential use to treat this medical condition. Therefore, this review focuses on the putative biological mechanisms through which flavonoids may prevent or treat obesity and highlights new perspectives on future pharmacological use.
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Affiliation(s)
- Ana T Rufino
- LAQV, REQUIMTE, Laboratory of Applied Chemistry, Department of Chemical Sciences, Faculty of Pharmacy, University of Porto, Porto, Portugal
| | - Vera M Costa
- UCIBIO, REQUIMTE, Laboratory of Toxicology, Department of Biological Sciences, Faculty of Pharmacy, University of Porto, Porto, Portugal
| | - Félix Carvalho
- UCIBIO, REQUIMTE, Laboratory of Toxicology, Department of Biological Sciences, Faculty of Pharmacy, University of Porto, Porto, Portugal
| | - Eduarda Fernandes
- LAQV, REQUIMTE, Laboratory of Applied Chemistry, Department of Chemical Sciences, Faculty of Pharmacy, University of Porto, Porto, Portugal
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11
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Wang L, Wu H, Yang F, Dong W. The Protective Effects of Myricetin against Cardiovascular Disease. J Nutr Sci Vitaminol (Tokyo) 2020; 65:470-476. [PMID: 31902859 DOI: 10.3177/jnsv.65.470] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
Cardiovascular disease (CVD) is the leading cause of death globally, except Africa, and poses a severe health burden worldwide. Both in vitro and in vivo studies have demonstrated the protective effects of myricetin for preventing CVD. For this review, we have assessed the literature from 2009 to 2019 at home and abroad to uncover the protective roles of myricetin for preventing CVD. Myricetin exhibits cardioprotective, anti-hypertensive, anti-atherosclerotic, anti-hyperglycemic, and anti-hyperlipidemic effects. In addition, myricetin may alleviate some of the complications caused by adult-onset diabetes. The combined functions of myricetin allow for the prevention of CVD. This review describes the possible therapeutic benefits of myricetin, along with its potential mechanisms of action, to support the clinical use of the myricetin for the prevention of CVD.
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Affiliation(s)
- Lu Wang
- Department of Pharmacy, Jinan Central Hospital Affiliated to Shandong University
| | - Haiyan Wu
- Department of Pharmacy, Jinan Central Hospital Affiliated to Shandong University
| | - Fei Yang
- Quality Department, Qilu Pharmaceutical Company
| | - Wenbin Dong
- Department of Pharmacy, Jinan Central Hospital Affiliated to Shandong University
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Xu W, Chen Q, Jia Y, Deng J, Jiang S, Qin G, Qiu Q, Wang X, Yang X, Jiang H. Isolation, characterization, and SREBP1 functional analysis of mammary epithelial cell in buffalo. J Food Biochem 2019; 43:e12997. [PMID: 31373025 DOI: 10.1111/jfbc.12997] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2019] [Revised: 07/10/2019] [Accepted: 07/11/2019] [Indexed: 12/22/2022]
Abstract
Compared to cow milk, buffalo milk contains more protein, fat, and vitamin. Buffalo milk is an ideal food in human life. Sterol regulatory element-binding protein 1 (SREBP1), an important transcription factor, regulates the expression and activity of enzyme and protein involved in milk fat synthesis to influence on the synthesis and secretion of triglyceride in mammary epithelial cells. In the present study, we successfully isolated buffalo mammary epithelial cell by using enzymatic digestion, and then described the growth characteristics and expression characteristics of mammary epithelial cells. Moreover, we cloned the SREBP1 gene from total RNA isolated from milk fat globule and analyzed the function of the SREBP1 gene. After infected with shRNA-SREBP1 lentiviral particle and treated with fatty acid, the expression trend of ACACA, FABP3, FAS, SCD, ERK1, ERK2, PPARy, and Insigl genes was consistent with the expression trend of SREBP1 gene. These results suggested that SREBP1 gene is a central transcription factor in regulating milk fat synthesis and SREBP1 gene may act on ERK1/ERK2 signaling pathway to regulate the expression of PPARy gene. The current study will provide a theoretical basis for further reveal the molecular mechanism of milk fat synthesis in buffalo mammary epithelial cells. PRACTICAL APPLICATIONS: This study aim to separate and analysis characterization of mammary epithelial cell in buffalo. Compared to cow milk, buffalo milk contains more protein, fat, and vitamin. Buffalo milk is an ideal food in human life. This study will provide a theoretical basis for further research on the molecular mechanism of milk fat synthesis in buffalo mammary epithelial cells.
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Affiliation(s)
- Wenwen Xu
- College of Animal Science and Technology, Guangxi University, Nanning, China
| | - Qiuming Chen
- College of Animal Science and Technology, Guangxi University, Nanning, China
| | - Yinhai Jia
- Guangxi Institute of Animal Sciences, Nanning, China
| | - Jixian Deng
- Guangxi Institute of Animal Sciences, Nanning, China
| | - Shiqiang Jiang
- The General Station of Guangxi Animal Husbandry, Nanning, China
| | - Guangsheng Qin
- Guangxi Key Laboratory of Buffalo Genetics and Breeding, Chinese Academy of Agriculture Science, Nanning, China
| | - Qingqing Qiu
- College of Animal Science and Technology, Guangxi University, Nanning, China
| | - Xinping Wang
- College of Animal Science and Technology, Guangxi University, Nanning, China
| | - Xiurong Yang
- College of Animal Science and Technology, Guangxi University, Nanning, China
| | - Hesheng Jiang
- College of Animal Science and Technology, Guangxi University, Nanning, China
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Kato E. Bioactive compounds in plant materials for the prevention of diabetesand obesity. Biosci Biotechnol Biochem 2019; 83:975-985. [DOI: 10.1080/09168451.2019.1580560] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
ABSTRACT
Plant materials have been widely studied for their preventive and therapeutic effects for type 2 diabetes mellitus (T2DM) and obesity. The effect of a plant material arises from its constituents, and the study of these bioactive compounds is important to achieve a deeper understanding of its effect at the molecular level. In particular, the study of the effects of such bioactive compounds on various biological processes, from digestion to cellular responses, is required to fully understand the overall effects of plant materials in these health contexts. In this review, I summarize the bioactive compounds we have recently studied in our research group that target digestive enzymes, dipeptidyl peptidase-4, myocyte glucose uptake, and lipid accumulation in adipocytes.
Abbreviations: AC: adenylyl cyclase; AMPK: AMP-activated protein kinase; βAR: β-adrenergic receptor; CA: catecholamine; cAMP: cyclic adenosine monophosphate; cGMP: cyclic guanosine monophosphate; DPP-4: dipeptidyl peptidase-4; ERK: extracellular signal-regulated kinase; GC: guanylyl cyclase; GH: growth hormone; GLP-1: glucagon-like peptide-1; GLUT: glucose transporter; HSL: hormone-sensitive lipase; IR: insulin receptor; IRS: insulin receptor substrate; MAPK: mitogen-activated protein kinase; MEK: MAPK/ERK kinase; MG: maltase-glucoamylase; NP: natriuretic peptide; NPR: natriuretic peptide receptor; mTORC2: mechanistic target of rapamycin complex-2; PC: proanthocyanidin; PI3K: phosphoinositide 3-kinase; PKA: cAMP-dependent protein kinase; PKB (AKT): protein kinase B; PKG: cGMP-dependent protein kinase; PPARγ: peroxisome proliferator-activated receptor-γ; SGLT1: sodium-dependent glucose transporter 1; SI: sucrase-isomaltase; T2DM: type 2 diabetes mellitus; TNFα: tumor necrosis factor-α.
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Affiliation(s)
- Eisuke Kato
- Division of Fundamental AgriScience and Research, Research Faculty of Agriculture, Hokkaido University, Kita-ku, Sapporo, Hokkaido, Japan
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Effects of Phaseolus vulgaris Extract on Lipolytic Activity and Differentiation of 3T3-L1 Preadipocytes into Mature Adipocytes: A Strategy to Prevent Obesity. J Nutr Metab 2019; 2019:5093654. [PMID: 31183217 PMCID: PMC6512049 DOI: 10.1155/2019/5093654] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2019] [Accepted: 02/26/2019] [Indexed: 01/12/2023] Open
Abstract
Background Overweight and obesity are defined as abnormal or excessive fat accumulation that may be harmful for health. A global trend in this area is the search for natural compounds that have a proven beneficial effect and no clinical complications. Phaseolus vulgaris (bean) is a vegetable highly consumed worldwide. One of its effects, the most reported, is weight reduction in overweight individuals. Objective The objective of this study was to investigate the antiobesity activity of this legume in mature 3T3-L1 adipocytes and in rat white adipose tissue in an ex vivo model. Design Mature adipocytes 3T3-L1 and rat adipose tissue were treated with bean extracts. We quantified lipolysis in mature 3T3-L1 adipocytes and in rat white adipose tissue in an ex vivo model. Results In an ex vivo assay with adipose tissue, methanolic and aqueous green bean extracts increased glycerol release to the medium compared to control (p < 0.05 and p < 0.001 respectively). Treatment of 3T3-L1 adipocytes with green bean extracts (800 and 1000 µg/mL) increased glycerol release significantly (p < 0.0001). Extracts at concentrations between 500 and 1000 µg/mL reduced intracellular triglyceride accumulation by 34.4% and 47.1% compared to control (p < 0.0001). Discussion Our results propose that bioactive compounds of green beans exert a direct mechanism on adipocytes through lipolysis. Conclusion We have identified a novel capacity of bean extracts related to lipolytic activity both in vitro and ex vivo, resulting in a powerful lipolytic effect. Moreover, we also found that bean extracts has an antiadipogenic effect during the differentiation of 3T3-L1 preadipocytes. These results suggest that bean is a good candidate for the development of functional ingredients that can help reduce the high rates of death from cardiovascular diseases associated with obesity.
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Ge M, Guo R, Lou HX, Zhang W. Extract of Paecilomyces hepiali mycelia induces lipolysis through PKA-mediated phosphorylation of hormone-sensitive lipase and ERK-mediated downregulation of perilipin in 3T3-L1 adipocytes. Altern Ther Health Med 2018; 18:326. [PMID: 30526586 PMCID: PMC6286538 DOI: 10.1186/s12906-018-2389-0] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2018] [Accepted: 11/27/2018] [Indexed: 01/21/2023]
Abstract
Background Cordyceps sinensis has been used for centuries in China as one of the most valued herbal medicine and tonic food. Paecilomyces hepiali, a fungal strain isolated from natural C. sinensis, has been used widely as a substitute of C. sinensis in medicine and health food. P. hepiali has been reported to have various pharmaceutical benefits, including triglyceride-lowing activity. However, its effects on triglyceride metabolism in adipocytes remain unknown. The purpose of the present study was to evaluate the effect of P. hepiali mycelia on adipocyte lipolysis and to clarify the underlying mechanisms. Methods The fully differentiated 3T3-L1 adipocytes were treated with methanol extract of Paecilomyces hepiali mycelia (PHME). Contents of glycerol released into the culture medium and intracellular triglyceride were measured as indices of lipolysis using glycerol assay kit and Oil red O staining, respectively. Then, effects of PHME on the main lipases or kinases involved in lipolysis regulation were investigated. Protein expression of adipose triglyceride lipase (ATGL) and perilipin, as well as phosphorylation of hormone-sensitive lipase (HSL), AMP-activated protein kinase (AMPK), and mitogen-activated protein kinases (MAPKs) were determined by western blotting. Moreover, nucleosides, important constituents of PHME, were analyzed using high performance liquid chromatography (HPLC). Results Treatment with PHME led to a significant increase in glycerol release thereby reduced intracellular triglyceride accumulation in fully differentiated adipocytes. PHME upregulated protein kinase (PK) A-mediated phosphorylation of HSL at serine residues of 563 and 660. Meanwhile, PHME treatment also upregulated phosphorylation of extracellular signal-regulated kinase (ERK), and downregulated the protein level of perilipin. Pretreatment with the PKA inhibitor, H89, blunted the PHME-induced lipolysis and the phosphorylation of HSL (Ser 563 and 660). Moreover, pretreatment with ERK inhibitor, PD98059, weakened the PHME-caused glycerol release and downregulation of perilipin expression. HPLC analysis indicated there were adenosine, cordycepin, uridine and vernine in PHME. Conclusions Our results showed that PHME significantly induced lipolysis in 3T3-L1 adipocytes, which is mainly mediated by activation of HSL through PKA pathway and by downregulation of perilipin through activation of ERK pathway. Electronic supplementary material The online version of this article (10.1186/s12906-018-2389-0) contains supplementary material, which is available to authorized users.
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Cao D, Ma F, Ouyang S, Liu Z, Li Y, Wu J. Effects of macrophages and CXCR2 on adipogenic differentiation of bone marrow mesenchymal stem cells. J Cell Physiol 2018; 234:9475-9485. [PMID: 30362570 DOI: 10.1002/jcp.27634] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2018] [Accepted: 09/27/2018] [Indexed: 12/13/2022]
Abstract
Macrophages and many chemokines are closely associated with the adipogenic differentiation of bone marrow mesenchymal stem cells (MSCs), but their roles in adipogenesis and the underlying mechanisms are not fully understood. Here, we first investigated the influence of macrophages on the differentiation of MSCs in vitro. We found that RAW246.7 macrophages cocultured with MSCs strongly blocked the differentiation progress and inhibited the expression of C-X-C motif chemokine ligand 1 (CXCL1) during adipogenesis. Coculture with MSCs mainly induced macrophages toward M2 polarization. In addition, the expression of CXCL1 and its receptor, C-X-C chemokine receptor type 2, CXCR2 are high during adipogenic differentiation of MSCs and not in mature adipocytes. Although CXCL1 had no effect on adipogenesis, treatment with a specific CXCR2 inhibitor, SB225002, hampered the adipogenic differentiation of MSCs. Blocking CXCR2 decreased p38 and Elk1 phosphorylation but increased the extracellular signal-regulated kinase (ERK) phosphorylation at the initial stage of adipogenesis, which suppressed the phosphorylation of p38/ERK-Elk1 at the late stage. Inhibition of ERK had similar effects on adipogenesis and Elk1 phosphorylation. Our data suggest that MSCs interact with macrophages during adipogenic differentiation. CXCR2 regulates the adipogenic differentiation of MSCs by altering the activation of the p38/ERK-Elk1 signaling pathway.
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Affiliation(s)
- Dingding Cao
- Department of Biochemistry and Immunology, Capital Institute of Pediatrics, Beijing, China
| | - Feifei Ma
- Department of Biochemistry and Immunology, Capital Institute of Pediatrics, Beijing, China
| | - Shengrong Ouyang
- Department of Biochemistry and Immunology, Capital Institute of Pediatrics, Beijing, China
| | - Zhuo Liu
- Department of Biochemistry and Immunology, Capital Institute of Pediatrics, Beijing, China
| | - Yuanyuan Li
- Department of Biochemistry and Immunology, Capital Institute of Pediatrics, Beijing, China
| | - Jianxin Wu
- Department of Biochemistry and Immunology, Capital Institute of Pediatrics, Beijing, China
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Abstract
Propose Obesity is a fast growing epidemic worldwide. During obesity, the increase in adipose tissue mass arise from two different mechanisms, namely, hyperplasia and hypertrophy. Hyperplasia which is the increase in adipocyte number is characteristic of severe obese patients. Recently, there has been much interest in targeting adipogenesis as therapeutic strategy against obesity. Flavonoids have been shown to regulate several pathways and affect a number of molecular targets during specific stages of adipocyte development. Methods Presently, we provide a review of key studies evaluating the effects of dietary flavonoids in different stages of adipocyte development with a particular emphasis on the investigations that explore the underlying mechanisms of action of these compounds in human or animal cell lines as well as animal models. Results Flavonoids have been shown to regulate several pathways and affect a number of molecular targets during specific stages of adipocyte development. Although most of the studies reveal anti-adipogenic effect of flavonoids, some flavonoids demonstrated proadipogenic effect in mesenchymal stem cells or preadipocytes. Conclusion The anti-adipogenic effect of flavonoids is mainly via their effect on regulation of several pathways such as induction of apoptosis, suppression of key adipogenic transcription factors, activation of AMPK and Wnt pathways, inhibition of clonal expansion, and cell-cycle arrest.
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Yao A, Shen Y, Zhang Z, Zou Z, Wang A, Chen S, Zhang H, Chen F, Zhao J, Chen Z, Shan Y, Zhang X. Sulforaphane and myricetin act synergistically to induce apoptosis in 3T3‑L1 adipocytes. Mol Med Rep 2017; 17:2945-2951. [PMID: 29257275 PMCID: PMC5783510 DOI: 10.3892/mmr.2017.8235] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2016] [Accepted: 03/09/2017] [Indexed: 02/06/2023] Open
Abstract
The aim of the present study was to investigate whether sulforaphane (SFN) and myricetin (Myr) synergistically induce apoptosis in adipocytes. The viability of mature 3T3-L1 adipocytes treated with 40 µM SFN and/or 100 µM Myr was assessed using an MTT assay. Apoptosis was assessed by Hoechst 33258 nuclear staining, and by detection of single-stranded DNA using an enzyme-linked immunosorbent assay. Compared with the effects of each compound alone, the combination of SFN and Myr synergistically reduced cell viability, induced apoptosis, increased pro-apoptotic Bcl-2 associated X protein expression, decreased anti-apoptotic B-cell lymphoma-2 expression, enhanced Bcl-2-associated death promoter (Bad) translocation from the cytoplasm to the mitochondria, and reduced Bad phosphorylation at Ser112. These effects were accompanied by increased cleavage of caspase 3 and poly-ADP-ribose-polymerase. In addition, combined SFN and Myr treatment significantly decreased the protein expression levels of phosphorylated AKT serine/threonine kinase 1 (Akt) at Ser473, as well as the phosphorylation of the downstream protein ribosomal protein, S6 kinase β-1. Therefore, SFN plus Myr was a more potent inducer of apoptosis in 3T3-L1 adipocytes than either compound alone. The results of the present study suggest that the mechanism of SNF/Myr-induced apoptosis involved activation of the Akt-mediated mitochondrial apoptotic pathway. This may aid treatment of animal models of obesity and preclinical testing.
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Affiliation(s)
- Anjun Yao
- Institute of Preventative Medicine, School of Medicine, Ningbo University, Ningbo, Zhejiang 315211, P.R. China
| | - Yingzhuo Shen
- Institute of Preventative Medicine, School of Medicine, Ningbo University, Ningbo, Zhejiang 315211, P.R. China
| | - Zhuangwei Zhang
- Institute of Preventative Medicine, School of Medicine, Ningbo University, Ningbo, Zhejiang 315211, P.R. China
| | - Zuquan Zou
- Institute of Preventative Medicine, School of Medicine, Ningbo University, Ningbo, Zhejiang 315211, P.R. China
| | - Anshi Wang
- Institute of Preventative Medicine, School of Medicine, Ningbo University, Ningbo, Zhejiang 315211, P.R. China
| | - Shiyong Chen
- Institute of Preventative Medicine, School of Medicine, Ningbo University, Ningbo, Zhejiang 315211, P.R. China
| | - Huiqin Zhang
- Institute of Preventative Medicine, School of Medicine, Ningbo University, Ningbo, Zhejiang 315211, P.R. China
| | - Fen Chen
- The Affiliated Hospital of School of Medicine of Ningbo University, Ningbo, Zhejiang 315210, P.R. China
| | - Jinshun Zhao
- Institute of Preventative Medicine, School of Medicine, Ningbo University, Ningbo, Zhejiang 315211, P.R. China
| | - Zhongming Chen
- Ningbo Kangning Hospital, Ningbo, Zhejiang 315210, P.R. China
| | - Yujuan Shan
- School of Food Science and Engineering, Harbin Institute of Technology, Harbin, Heilongjiang 150090, P.R. China
| | - Xiaohong Zhang
- Institute of Preventative Medicine, School of Medicine, Ningbo University, Ningbo, Zhejiang 315211, P.R. China
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Kowalska K, Olejnik A, Szwajgier D, Olkowicz M. Inhibitory activity of chokeberry, bilberry, raspberry and cranberry polyphenol-rich extract towards adipogenesis and oxidative stress in differentiated 3T3-L1 adipose cells. PLoS One 2017; 12:e0188583. [PMID: 29182628 PMCID: PMC5705115 DOI: 10.1371/journal.pone.0188583] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2017] [Accepted: 11/09/2017] [Indexed: 12/24/2022] Open
Abstract
Berries are a rich source of antioxidants and phytochemicals that have received considerable interest for their possible relations to human health. In this study, the anti-adipogenic effect of polyphenol-rich extract obtained from chokeberry Aronia melanocarpa (Michx.) Elliot, raspberry Rubus idaeus L., bilberry Vaccinium myrtillus L. and cranberry Vaccinium macrocarpon Aiton fruits and its underlying molecular mechanisms were investigated in differentiated 3T3-L1 adipose cells. Treatment with the extract (25-100 μg/mL) significantly decreased lipid accumulation and reactive oxygen species generation in adipocytes without showing cytotoxicity. Real-time PCR analysis revealed that the extract at a concentration of 100 μg/mL suppressed adipogenesis and lipogenesis via the down-regulation of PPARγ (67%), C/EBPα (72%), SREBP1 (62%), aP2 (24%), FAS (32%), LPL (40%), HSL (39%), and PLIN1 (32%) gene expression. Moreover, the extract significantly increased the expression of adiponectin (4.4-fold) and decreased leptin expression (90%) and respectively regulated the production of these adipokines in 3T3-L1 adipocytes. The obtained results suggest that the analyzed extract may be a promising source of bioactive compounds that support long-term weight maintenance and promote the effective management of obesity.
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Affiliation(s)
- Katarzyna Kowalska
- Department of Biotechnology and Food Microbiology, Poznań University of Life Sciences, Poznań, Poland
| | - Anna Olejnik
- Department of Biotechnology and Food Microbiology, Poznań University of Life Sciences, Poznań, Poland
- * E-mail:
| | - Dominik Szwajgier
- Department of Biotechnology, Human Nutrition and Science of Food Commodities, University of Life Sciences, Lublin, Poland
| | - Mariola Olkowicz
- Department of Biotechnology and Food Microbiology, Poznań University of Life Sciences, Poznań, Poland
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Tan Y, Chang SK, Zhang Y. Comparison of α-amylase, α-glucosidase and lipase inhibitory activity of the phenolic substances in two black legumes of different genera. Food Chem 2017; 214:259-268. [DOI: 10.1016/j.foodchem.2016.06.100] [Citation(s) in RCA: 148] [Impact Index Per Article: 21.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2016] [Revised: 05/30/2016] [Accepted: 06/29/2016] [Indexed: 01/05/2023]
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Choi J, Lee SY, Yoo YM, Kim CH. Maturation of Adipocytes is Suppressed by Fluid Shear Stress. Cell Biochem Biophys 2016; 75:87-94. [PMID: 27830366 DOI: 10.1007/s12013-016-0771-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2016] [Accepted: 10/31/2016] [Indexed: 10/20/2022]
Abstract
Preadipocytes are mechano-responsive cells and their differentiation to adipocytes may be regulated by various types of physical stimulation. Understanding the mechanism of differentiation, which increases the number of adipocytes and lipid accumulation is important in the study of obesity-related diseases. In this study, we investigated the effects of physical stimulation at different stages of adipogenic differentiation using physiological levels of fluid shear stress. Preadipocytes were treated with dexamethasone, 3-isobutyl-1-methylxanthine and insulin for 3 days (induction period) and incubated for additional 6 days for maturation. Fluid shear stress of 1 Pa at 1 Hz was applied for 1 h at different stages of differentiation. Fluid shear stress applied at the maturation period significantly reduced the expressions of C/enhancer binding protein (EBP)α and peroxisome proliferator-activated receptor (PPAR)γ2 leading to reduced lipid accumulation. Fluid shear stress applied at the early or late stages of the induction period only decreased peroxisome proliferator-activated receptor γ2 expression without any significant changes in lipid accumulation. Stimulation at multiple days during the induction period did not result in changes in lipid accumulation compared to stimulation at a single day. These results suggest that lipid droplet accumulation is effectively decreased by fluid shear stress applied during the cell maturation period. Understanding the cellular response to physical stimulation throughout the entire adipocyte differentiation period may be important in controlling adipogenesis by physical stimulation.
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Affiliation(s)
- Jongyun Choi
- Department of Biomedical Engineering, College of Health Science, Yonsei University, Wonju, Gangwon-do, 26493, Republic of Korea
| | - Sei Young Lee
- Department of Biomedical Engineering, College of Health Science, Yonsei University, Wonju, Gangwon-do, 26493, Republic of Korea
| | - Yeong-Min Yoo
- Department of Biomedical Engineering, College of Health Science, Yonsei University, Wonju, Gangwon-do, 26493, Republic of Korea
| | - Chi Hyun Kim
- Department of Biomedical Engineering, College of Health Science, Yonsei University, Wonju, Gangwon-do, 26493, Republic of Korea.
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The adipokine Chemerin induces lipolysis and adipogenesis in bovine intramuscular adipocytes. Mol Cell Biochem 2016; 418:39-48. [DOI: 10.1007/s11010-016-2731-0] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2016] [Accepted: 05/26/2016] [Indexed: 11/26/2022]
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Arumugam B, Palanisamy UD, Chua KH, Kuppusamy UR. Potential antihyperglycaemic effect of myricetin derivatives from Syzygium malaccense. J Funct Foods 2016. [DOI: 10.1016/j.jff.2016.01.038] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
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Sanches JR, França LM, Chagas VT, Gaspar RS, Dos Santos KA, Gonçalves LM, Sloboda DM, Holloway AC, Dutra RP, Carneiro EM, Cappelli APG, Paes AMDA. Polyphenol-Rich Extract of Syzygium cumini Leaf Dually Improves Peripheral Insulin Sensitivity and Pancreatic Islet Function in Monosodium L-Glutamate-Induced Obese Rats. Front Pharmacol 2016; 7:48. [PMID: 27014062 PMCID: PMC4785152 DOI: 10.3389/fphar.2016.00048] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2015] [Accepted: 02/22/2016] [Indexed: 12/23/2022] Open
Abstract
Syzygium cumini (L.) Skeels (Myrtaceae) has been traditionally used to treat a number of illnesses. Ethnopharmacological studies have particularly addressed antidiabetic and metabolic-related effects of extracts prepared from its different parts, especially seed, and pulp-fruit, however. there is a lack of studies on phytochemical profile and biological properties of its leaf. As there is considerable interest in bioactive compounds to treat metabolic syndrome and its clustered risk factors, we sought to characterize the metabolic effects of hydroethanolic extract of S. cumini leaf (HESc) on lean and monosodium L-glutamate (MSG)-induced obese rats. HPLC-MS/MS characterization of the HESc polyphenolic profile, at 254 nm, identified 15 compounds pertaining to hydrolysable tannin and flavanol subclasses. At 60 days of age, both groups were randomly assigned to receive HESc (500 mg/kg) or vehicle for 30 days. At the end of treatment, obese+HESc exhibited significantly lower body weight gain, body mass index, and white adipose tissue mass, compared to obese rats receiving vehicle. Obese rats treated with HESc showed a twofold increase in lipolytic activity in the periepididymal fat pad, as well as, brought triglyceride levels in serum, liver and skeletal muscle back to levels close those found in lean animals. Furthermore, HESc also improved hyperinsulinemia and insulin resistance in obese+HESc rats, which resulted in partial reversal of glucose intolerance, as compared to obese rats. HESc had no effect in lean rats. Assessment of ex vivo glucose-stimulated insulin secretion showed HESc potentiated pancreatic function in islets isolated from both lean and obese rats treated with HESc. In addition, HESc (10–1000 μg/mL) increased glucose stimulated insulin secretion from both isolated rat islets and INS-1E β-cells. These data demonstrate that S. cumini leaf improved peripheral insulin sensitivity via stimulating/modulating β-cell insulin release, which was associated with improvements in metabolic outcomes in MSG-induced obese rats.
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Affiliation(s)
- Jonas R Sanches
- Laboratory of Experimental Physiology, Department of Physiological Sciences, Federal University of Maranhão São Luís, Brazil
| | - Lucas M França
- Laboratory of Experimental Physiology, Department of Physiological Sciences, Federal University of Maranhão São Luís, Brazil
| | - Vinicyus T Chagas
- Laboratory of Experimental Physiology, Department of Physiological Sciences, Federal University of Maranhão São Luís, Brazil
| | - Renato S Gaspar
- Laboratory of Experimental Physiology, Department of Physiological Sciences, Federal University of Maranhão São Luís, Brazil
| | - Kayque A Dos Santos
- Laboratory of Experimental Physiology, Department of Physiological Sciences, Federal University of Maranhão São Luís, Brazil
| | - Luciana M Gonçalves
- Laboratory of Endocrine Pancreas and Metabolism, Department of Estructural and Functional Biology, Institute of Biology, State University of Campinas Campinas, Brazil
| | - Deborah M Sloboda
- Departments of Biochemistry, Pediatrics and Obstetrics and Gynecology, McMaster University Hamilton, ON, Canada
| | - Alison C Holloway
- Department of Obstetrics and Gynecology, McMaster University Hamilton, ON, Canada
| | - Richard P Dutra
- Social, Health and Technological Sciences Center, Federal University of Maranhão Imperatriz, Brazil
| | - Everardo M Carneiro
- Laboratory of Endocrine Pancreas and Metabolism, Department of Estructural and Functional Biology, Institute of Biology, State University of Campinas Campinas, Brazil
| | - Ana Paula G Cappelli
- Laboratory of Experimental Physiology, Department of Physiological Sciences, Federal University of Maranhão São Luís, Brazil
| | - Antonio Marcus de A Paes
- Laboratory of Experimental Physiology, Department of Physiological Sciences, Federal University of Maranhão São Luís, Brazil
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