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Yang Z, Kubant R, Kranenburg E, Cho CE, Anderson GH. The Effect of Micronutrients on Obese Phenotype of Adult Mice Is Dependent on the Experimental Environment. Nutrients 2024; 16:696. [PMID: 38474824 DOI: 10.3390/nu16050696] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2024] [Revised: 02/14/2024] [Accepted: 02/27/2024] [Indexed: 03/14/2024] Open
Abstract
The environment of the test laboratory affects the reproducibility of treatment effects on physiological phenotypes of rodents and may be attributed to the plasticity of the epigenome due to nutrient-gene-environment interactions. Here, we explored the reproducibility of adding a multi-vitamin-mineral (MVM) mix to a nutrient-balanced high-fat (HF) diet on obesity, insulin resistance (IR), and gene expression in the tissues of adult male mice. Experiments of the same design were conducted in three independent animal facilities. Adult C57BL/6J male mice were fed an HF diet for 6 weeks (diet induced-obesity model) and then continued for 9-12 weeks on the HF diet with or without 5-fold additions of vitamins A, B1, B6, B12, Zn, and 2-fold Se. The addition of the MVM affected body weight, fat mass, gene expression, and markers of IR in all three locations (p < 0.05). However, the direction of the main effects was influenced by the interaction with the experimental location and its associated environmental conditions known to affect the epigenome. In conclusion, MVM supplementation influenced phenotypes and expression of genes related to adipose function in obese adult male mice, but the experimental location and its associated conditions were significant interacting factors. Preclinical studies investigating the relationship between diet and metabolic outcomes should acknowledge the plasticity of the epigenome and implement measures to reproduce studies in different locations.
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Affiliation(s)
- Zeyu Yang
- Department of Nutritional Sciences, Temerty Faculty of Medicine, University of Toronto, Toronto, ON M5S 1A8, Canada
| | - Ruslan Kubant
- Department of Nutritional Sciences, Temerty Faculty of Medicine, University of Toronto, Toronto, ON M5S 1A8, Canada
| | - Eva Kranenburg
- Department of Nutritional Sciences, Temerty Faculty of Medicine, University of Toronto, Toronto, ON M5S 1A8, Canada
| | - Clara E Cho
- Department of Human Health and Nutritional Sciences, College of Biological Science, University of Guelph, Guelph, ON N1G 2W1, Canada
| | - G Harvey Anderson
- Department of Nutritional Sciences, Temerty Faculty of Medicine, University of Toronto, Toronto, ON M5S 1A8, Canada
- Department of Physiology, Temerty Faculty of Medicine, University of Toronto, Toronto, ON M5S 1A8, Canada
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Chen P, Wang Y, Chen F, Zhou B. Epigenetics in obesity: Mechanisms and advances in therapies based on natural products. Pharmacol Res Perspect 2024; 12:e1171. [PMID: 38293783 PMCID: PMC10828914 DOI: 10.1002/prp2.1171] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2023] [Revised: 10/19/2023] [Accepted: 12/28/2023] [Indexed: 02/01/2024] Open
Abstract
Obesity is a major risk factor for morbidity and mortality because it has a close relationship to metabolic illnesses, such as diabetes, cardiovascular diseases, and some types of cancer. With no drugs available, the mainstay of obesity management remains lifestyle changes with exercise and dietary modifications. In light of the tremendous disease burden and unmet therapeutics, fresh perspectives on pathophysiology and drug discovery are needed. The development of epigenetics provides a compelling justification for how environmental, lifestyle, and other risk factors contribute to the pathogenesis of obesity. Furthermore, epigenetic dysregulations can be restored, and it has been reported that certain natural products obtained from plants, such as tea polyphenols, ellagic acid, urolithins, curcumin, genistein, isothiocyanates, and citrus isoflavonoids, were shown to inhibit weight gain. These substances have great antioxidant potential and are of great interest because they can also modify epigenetic mechanisms. Therefore, understanding epigenetic modifications to target the primary cause of obesity and the epigenetic mechanisms of anti-obesity effects with certain phytochemicals can prove rational strategies to prevent the disease and develop novel therapeutic interventions. Thus, the current review aimed to summarize the epigenetic mechanisms and advances in therapies for obesity based on natural products to provide evidence for the development of several potential anti-obesity drug targets.
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Affiliation(s)
- Peng Chen
- Department of PharmacyRenmin Hospital of Wuhan UniversityWuhanHubeiP.R. China
| | - Yulai Wang
- Department of Pharmacy, Huangshi Central HospitalAffiliated Hospital of Hubei Polytechnic UniversityHuangshiHubeiP.R. China
| | - Fuchao Chen
- Sinopharm Dongfeng General HospitalHubei University of MedicineShiyanHubeiP.R. China
| | - Benhong Zhou
- Department of PharmacyRenmin Hospital of Wuhan UniversityWuhanHubeiP.R. China
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Zhao XY, Wang JQ, Neely GG, Shi YC, Wang QP. Natural compounds as obesity pharmacotherapies. Phytother Res 2024; 38:797-838. [PMID: 38083970 DOI: 10.1002/ptr.8083] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2023] [Revised: 10/20/2023] [Accepted: 11/22/2023] [Indexed: 02/15/2024]
Abstract
Obesity has become a serious global public health problem, affecting over 988 million people worldwide. Nevertheless, current pharmacotherapies have proven inadequate. Natural compounds have garnered significant attention due to their potential antiobesity effects. Over the past three decades, ca. 50 natural compounds have been evaluated for the preventive and/or therapeutic effects on obesity in animals and humans. However, variations in the antiobesity efficacies among these natural compounds have been substantial, owing to differences in experimental designs, including variations in animal models, dosages, treatment durations, and administration methods. The feasibility of employing these natural compounds as pharmacotherapies for obesity remained uncertain. In this review, we systematically summarized the antiobesity efficacy and mechanisms of action of each natural compound in animal models. This comprehensive review furnishes valuable insights for the development of antiobesity medications based on natural compounds.
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Affiliation(s)
- Xin-Yuan Zhao
- Laboratory of Metabolism and Aging, School of Pharmaceutical Sciences (Shenzhen), Shenzhen Campus of Sun Yat-sen University, Shenzhen, China
| | - Ji-Qiu Wang
- Department of Endocrinology and Metabolism, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - G Gregory Neely
- The Dr. John and Anne Chong Laboratory for Functional Genomics, Charles Perkins Centre and School of Life & Environmental Sciences, The University of Sydney, Sydney, NSW, Australia
| | - Yan-Chuan Shi
- Diabetes and Metabolism Division, Garvan Institute of Medical Research, Darlinghurst, Sydney, NSW, Australia
- St Vincent's Clinical School, Faculty of Medicine, University of New South Wales, Sydney, NSW, Australia
| | - Qiao-Ping Wang
- Laboratory of Metabolism and Aging, School of Pharmaceutical Sciences (Shenzhen), Shenzhen Campus of Sun Yat-sen University, Shenzhen, China
- Medical Center for Comprehensive Weight Control, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Diabetology, Guangzhou Key Laboratory of Mechanistic and Translational Obesity Research, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
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Tian J, Jin L, Liu H, Hua Z. Stilbenes: a promising small molecule modulator for epigenetic regulation in human diseases. Front Pharmacol 2023; 14:1326682. [PMID: 38155902 PMCID: PMC10754530 DOI: 10.3389/fphar.2023.1326682] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2023] [Accepted: 11/24/2023] [Indexed: 12/30/2023] Open
Abstract
Stilbenes are characterized by a vinyl group connecting two benzene rings to form the basic parent nucleus. Hydrogen atoms on different positions of the benzene rings can be substituted with hydroQxyl groups. These unique structural features confer anti-inflammatory, antibacterial, antiviral, antioxidant, anticancer, cardiovascular protective, and neuroprotective pharmacological effects upon these compounds. Numerous small molecule compounds have demonstrated these pharmacological activities in recent years, including Resveratrol, and Pterostilbene, etc. Tamoxifen and Raloxifene are FDA-approved commonly prescribed synthetic stilbene derivatives. The emphasis is on the potential of these small molecules and their structural derivatives as epigenetic regulators in various diseases. Stilbenes have been shown to modulate epigenetic marks, such as DNA methylation and histone modification, which can alter gene expression patterns and contribute to disease development. This review will discuss the mechanisms by which stilbenes regulate epigenetic marks in various diseases, as well as clinical trials, with a focus on the potential of small molecule and their derivatives such as Resveratrol, Pterostilbene, and Tamoxifen.
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Affiliation(s)
- Jing Tian
- The State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing, Jiangsu, China
| | - Li Jin
- The State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing, Jiangsu, China
| | - Hongquan Liu
- Jiangsu Province Hospital on Integration of Chinese and Western Medicine, Nanjing, China
| | - Zichun Hua
- The State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing, Jiangsu, China
- Changzhou High-Tech Research Institute of Nanjing University and Jiangsu TargetPharma Laboratories Inc., Changzhou, China
- Nanjing Generecom Biotechnology Co., Ltd., Nanjing, China
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Özyalçın B, Sanlier N. Antiobesity pathways of pterostilbene and resveratrol: a comprehensive insight. Crit Rev Food Sci Nutr 2023:1-9. [PMID: 37486219 DOI: 10.1080/10408398.2023.2238319] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/25/2023]
Abstract
It may not always be possible for obese individuals to limit energy intake or to provide and/or maintain greater energy expenditure through exercise and physical activity. Therefore, the search for effective methods for obesity continues. Recently, the anti-obesity effect of stilbenes has attracted attention. In this review, aim was evaluating the effect of pterostilbene and resveratrol against obesity and the possible mechanisms in this effect. Dietary phytochemicals can induce body weight loss by increasing basal metabolic rate and thermogenesis and/or altering lipid metabolism. Stilbenes are products of the plant phenylpropanoid pathway. Very important mechanisms for the anti-obesity impact belonging to resveratrol as well as pterostilbene include thermogenic activation in brown adipose tissue alongside the browning of white adipose tissue. Considering nutrition and dietary habits, which have an important place in lifestyle changes for both the prevention and the treatment of obesity, pterostilbene and resveratrol, which are polyphenols and stilbenes, are seen as promising. However, optimal dose, duration, mechanism, long-term safety, side effects, combination, elucidation of genomic interactions, and lifestyle modifications should be considered.
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Affiliation(s)
- Büşra Özyalçın
- Department of Nutrition and Dietetics, Ankara Medipol University, Ankara, Turkey
| | - Nevin Sanlier
- Department of Nutrition and Dietetics, Ankara Medipol University, Ankara, Turkey
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KIANI AYSHAKARIM, BONETTI GABRIELE, DONATO KEVIN, KAFTALLI JURGEN, HERBST KARENL, STUPPIA LIBORIO, FIORETTI FRANCESCO, NODARI SAVINA, PERRONE MARCO, CHIURAZZI PIETRO, BELLINATO FRANCESCO, GISONDI PAOLO, BERTELLI MATTEO. Polymorphisms, diet and nutrigenomics. J Prev Med Hyg 2022; 63:E125-E141. [PMID: 36479483 PMCID: PMC9710387 DOI: 10.15167/2421-4248/jpmh2022.63.2s3.2754] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Every human being possesses an exclusive nutritional blueprint inside their genes. Bioactive food components and nutrients affect the expression of such genes. Nutrigenomics is the science that analyzes gene-nutrient interactions (nutrigenetics), which can lead to the development of personalized nutritional recommendations to maintain optimal health and prevent disease. Genomic diversity among various ethnic groups might affect nutrients bioavailability as well as their metabolism. Nutrigenomics combines different branches of science including nutrition, bioinformatics, genomics, molecular biology, molecular medicine, and epidemiology. Genes regulate intake and metabolism of different nutrients, while nutrients positively or negatively influence the expression of a number of genes; testing of specific genetic polymorphisms may therefore become a useful tool to manage weight loss and to fully understand gene-nutrient interactions. Indeed, several approaches are used to study gene-nutrient interactions: epigenetics, the study of genome modification not related to changes in nucleotide sequence; transcriptomics, the study of tissue-specific and time-specific RNA transcripts; proteomics, the study of proteins involved in biological processes; and metabolomics, the study of changes of primary and secondary metabolites in body fluids and tissues. Hence, the use of nutrigenomics to improve and optimize a healthy, balanced diet in clinical settings could be an effective approach for long-term lifestyle changes that might lead to consistent weight loss and improve quality of life.
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Affiliation(s)
| | - GABRIELE BONETTI
- MAGI’S LAB, Rovereto (TN), Italy
- Correspondence: Gabriele Bonetti, MAGI’S LAB, Rovereto (TN), 38068, Italy. E-mail:
| | | | | | - KAREN L. HERBST
- Total Lipedema Care, Beverly Hills California and Tucson Arizona, USA
| | - LIBORIO STUPPIA
- Department of Psychological, Health and Territorial Sciences, School of Medicine and Health Sciences, “G. d’Annunzio” University, Chieti, Italy
| | - FRANCESCO FIORETTI
- Department of Cardiology, University of Brescia and ASST “Spedali Civili” Hospital, Brescia, Italy
| | - SAVINA NODARI
- Department of Cardiology, University of Brescia and ASST “Spedali Civili” Hospital, Brescia, Italy
| | - MARCO PERRONE
- Department of Cardiology and CardioLab, University of Rome Tor Vergata, Rome, Italy
| | - PIETRO CHIURAZZI
- Istituto di Medicina Genomica, Università Cattolica del Sacro Cuore, Rome, Italy
- UOC Genetica Medica, Fondazione Policlinico Universitario “A. Gemelli” IRCCS, Rome, Italy
| | - FRANCESCO BELLINATO
- Section of Dermatology and Venereology, Department of Medicine, University of Verona, Verona, Italy
| | - PAOLO GISONDI
- Section of Dermatology and Venereology, Department of Medicine, University of Verona, Verona, Italy
| | - MATTEO BERTELLI
- MAGI EUREGIO, Bolzano, Italy
- MAGI’S LAB, Rovereto (TN), Italy
- MAGISNAT, Peachtree Corners (GA), USA
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7
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Lal MK, Sharma E, Tiwari RK, Devi R, Mishra UN, Thakur R, Gupta R, Dey A, Lal P, Kumar A, Altaf MA, Sahu DN, Kumar R, Singh B, Sahu SK. Nutrient-Mediated Perception and Signalling in Human Metabolism: A Perspective of Nutrigenomics. Int J Mol Sci 2022; 23:ijms231911305. [PMID: 36232603 PMCID: PMC9569568 DOI: 10.3390/ijms231911305] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2022] [Revised: 09/03/2022] [Accepted: 09/21/2022] [Indexed: 11/16/2022] Open
Abstract
The interaction between selective nutrients and linked genes involving a specific organ reveals the genetic make-up of an individual in response to a particular nutrient. The interaction of genes with food opens opportunities for the addition of bioactive compounds for specific populations comprising identical genotypes. The slight difference in the genetic blueprints of humans is advantageous in determining the effect of nutrients and their metabolism in the body. The basic knowledge of emerging nutrigenomics and nutrigenetics can be applied to optimize health, prevention, and treatment of diseases. In addition, nutrient-mediated pathways detecting the cellular concentration of nutrients such as sugars, amino acids, lipids, and metabolites are integrated and coordinated at the organismal level via hormone signals. This review deals with the interaction of nutrients with various aspects of nutrigenetics and nutrigenomics along with pathways involved in nutrient sensing and regulation, which can provide a detailed understanding of this new leading edge in nutrition research and its potential application to dietetic practice.
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Affiliation(s)
- Milan Kumar Lal
- Division of Crop Physiology, Biochemistry and Post-Harvest Technology, ICAR-Central Potato Research Institute, Shimla 171001, India
| | - Eshita Sharma
- Department of Molecular Biology and Biochemistry, Guru Nanak Dev University, Amritsar 143005, India
| | - Rahul Kumar Tiwari
- Division of Plant Protection, ICAR-Central Potato Research Institute, Shimla 171001, India
| | - Rajni Devi
- Department of Microbiology, Punjab Agricultural University, Ludhiana 141004, India
| | | | - Richa Thakur
- Division of Silviculture and Forest Management, Himalayan Forest Research Institute, Conifer Campus, Shimla 171001, India
| | - Rucku Gupta
- Department of horticulture, Sher-e-Kashmir University of Agricultural Science and Technology of Jammu, Jammu 181101, India
| | - Abhijit Dey
- Department of Life Sciences, Presidency University, 86/1 College Street, Kolkata 700073, India
| | - Priyanka Lal
- Department of Agricultural Economics and Extension, School of Agriculture, Lovely Professional University, Jalandhar GT Road (NH1), Phagwara 144402, India
| | - Awadhesh Kumar
- Division of Crop Physiology and Biochemistry, ICAR-National Rice Research Institute, Cuttack 754006, India
| | | | - Durgesh Nandini Sahu
- State Key Laboratory of Agricultural Genomics, BGI-Shenzhen, Shenzhen 518083, China
| | - Ravinder Kumar
- Division of Plant Protection, ICAR-Central Potato Research Institute, Shimla 171001, India
| | - Brajesh Singh
- Division of Crop Physiology, Biochemistry and Post-Harvest Technology, ICAR-Central Potato Research Institute, Shimla 171001, India
- Correspondence: (B.S.); (S.K.S.)
| | - Sunil Kumar Sahu
- State Key Laboratory of Agricultural Genomics, BGI-Shenzhen, Shenzhen 518083, China
- Correspondence: (B.S.); (S.K.S.)
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Chen W, Yang H, Yan Q, Zhou X, Tan Z, Wang Z. Effects of maternal feed intake restriction on the blood parameters, fatty acid profile and lipogenetic genes expression of perirenal fat in offspring kids. Anim Reprod Sci 2022; 238:106955. [DOI: 10.1016/j.anireprosci.2022.106955] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Revised: 02/16/2022] [Accepted: 02/20/2022] [Indexed: 11/17/2022]
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9
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Beetch M, Boycott C, Harandi-Zadeh S, Yang T, Martin BJE, Dixon-McDougall T, Ren K, Gacad A, Dupuis JH, Ullmer M, Lubecka K, Yada RY, Brown CJ, Howe LJ, Stefanska B. Pterostilbene leads to DNMT3B-mediated DNA methylation and silencing of OCT1-targeted oncogenes in breast cancer cells. J Nutr Biochem 2021; 98:108815. [PMID: 34242723 PMCID: PMC8819711 DOI: 10.1016/j.jnutbio.2021.108815] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2020] [Revised: 06/06/2021] [Accepted: 06/23/2021] [Indexed: 12/13/2022]
Abstract
Transcription factor (TF)-mediated regulation of genes is often disrupted during carcinogenesis. The DNA methylation state of TF-binding sites may dictate transcriptional activity of corresponding genes. Stilbenoid polyphenols, such as pterostilbene (PTS), have been shown to exert anticancer action by remodeling DNA methylation and gene expression. However, the mechanisms behind these effects still remain unclear. Here, the dynamics between oncogenic TF OCT1 binding and de novo DNA methyltransferase DNMT3B binding in PTS-treated MCF10CA1a invasive breast cancer cells has been explored. Using chromatin immunoprecipitation (ChIP) followed by next generation sequencing, we determined 47 gene regulatory regions with decreased OCT1 binding and enriched DNMT3B binding in response to PTS. Most of those genes were found to have oncogenic functions. We selected three candidates, PRKCA, TNNT2, and DANT2, for further mechanistic investigation taking into account PRKCA functional and regulatory connection with numerous cancer-driving processes and pathways, and some of the highest increase in DNMT3B occupancy within TNNT2 and DANT2 enhancers. PTS led to DNMT3B recruitment within PRKCA, TNNT2, and DANT2 at loci that also displayed reduced OCT1 binding. Substantial decrease in OCT1 with increased DNMT3B binding was accompanied by PRKCA promoter and TNNT2 and DANT2 enhancer hypermethylation, and gene silencing. Interestingly, DNA hypermethylation of the genes was not detected in response to PTS in DNMT3B-CRISPR knockout MCF10CA1a breast cancer cells. It indicates DNMT3B-dependent methylation of PRKCA, TNNT2, and DANT2 upon PTS. Our findings provide a better understanding of mechanistic players and their gene targets that possibly contribute to the anticancer action of stilbenoid polyphenols.
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Affiliation(s)
- Megan Beetch
- Food, Nutrition and Health Program, Faculty of Land and Food Systems, University of British Columbia, Vancouver, British Columbia, Canada
| | - Cayla Boycott
- Food, Nutrition and Health Program, Faculty of Land and Food Systems, University of British Columbia, Vancouver, British Columbia, Canada
| | - Sadaf Harandi-Zadeh
- Food, Nutrition and Health Program, Faculty of Land and Food Systems, University of British Columbia, Vancouver, British Columbia, Canada
| | - Tony Yang
- Food, Nutrition and Health Program, Faculty of Land and Food Systems, University of British Columbia, Vancouver, British Columbia, Canada
| | - Benjamin J E Martin
- Department of Biochemistry and Molecular Biology, University of British Columbia, Vancouver, British Columbia, Canada; Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, Boston, Massachusetts, USA
| | - Thomas Dixon-McDougall
- Department of Medical Genetics, Molecular Epigenetics Group, Life Sciences Institute, University of British Columbia, Vancouver, British Columbia, Canada
| | - Kevin Ren
- Food, Nutrition and Health Program, Faculty of Land and Food Systems, University of British Columbia, Vancouver, British Columbia, Canada
| | - Allison Gacad
- Food, Nutrition and Health Program, Faculty of Land and Food Systems, University of British Columbia, Vancouver, British Columbia, Canada
| | - John H Dupuis
- Food, Nutrition and Health Program, Faculty of Land and Food Systems, University of British Columbia, Vancouver, British Columbia, Canada
| | - Melissa Ullmer
- Department of Anatomy, Cell Biology and Physiology, Indiana University School of Medicine, Indianapolis, Indiana, USA
| | - Katarzyna Lubecka
- Department of Biomedical Chemistry, Medical University of Lodz, Lodz, Poland
| | - Rickey Y Yada
- Food, Nutrition and Health Program, Faculty of Land and Food Systems, University of British Columbia, Vancouver, British Columbia, Canada
| | - Carolyn J Brown
- Department of Medical Genetics, Molecular Epigenetics Group, Life Sciences Institute, University of British Columbia, Vancouver, British Columbia, Canada
| | - LeAnn J Howe
- Department of Biochemistry and Molecular Biology, University of British Columbia, Vancouver, British Columbia, Canada
| | - Barbara Stefanska
- Food, Nutrition and Health Program, Faculty of Land and Food Systems, University of British Columbia, Vancouver, British Columbia, Canada.
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Harandi-Zadeh S, Boycott C, Beetch M, Yang T, Martin BJE, Ren K, Kwasniak A, Dupuis JH, Lubecka K, Yada RY, Howe LJ, Stefanska B. Pterostilbene Changes Epigenetic Marks at Enhancer Regions of Oncogenes in Breast Cancer Cells. Antioxidants (Basel) 2021; 10:1232. [PMID: 34439480 DOI: 10.3390/antiox10081232] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2021] [Revised: 07/26/2021] [Accepted: 07/27/2021] [Indexed: 12/15/2022] Open
Abstract
Epigenetic aberrations are linked to sporadic breast cancer. Interestingly, certain dietary polyphenols with anti-cancer effects, such as pterostilbene (PTS), have been shown to regulate gene expression by altering epigenetic patterns. Our group has proposed the involvement of DNA methylation and DNA methyltransferase 3B (DNMT3B) as vital players in PTS-mediated suppression of candidate oncogenes and suggested a role of enhancers as target regions. In the present study, we assess a genome-wide impact of PTS on epigenetic marks at enhancers in highly invasive MCF10CA1a breast cancer cells. Following chromatin immunoprecipitation (ChIP)-sequencing in MCF10CA1a cells treated with 7 μM PTS for 9 days, we discovered that PTS leads to increased binding of DNMT3B at enhancers of 77 genes, and 17 of those genes display an overlapping decrease in the occupancy of trimethylation at lysine 36 of histone 3 (H3K36me3), a mark of active enhancers. We selected two genes, PITPNC1 and LINC00910, and found that their enhancers are hypermethylated in response to PTS. These changes coincided with the downregulation of gene expression. Of importance, we showed that 6 out of 17 target enhancers, including PITPNC1 and LINC00910, are bound by an oncogenic transcription factor OCT1 in MCF10CA1a cells. Indeed, the six enhancers corresponded to genes with established or putative cancer-driving functions. PTS led to a decrease in OCT1 binding at those enhancers, and OCT1 depletion resulted in PITPNC1 and LINC00910 downregulation, further demonstrating a role for OCT1 in transcriptional regulation. Our findings provide novel evidence for the epigenetic regulation of enhancer regions by dietary polyphenols in breast cancer cells.
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Hajri T, Zaiou M, Fungwe TV, Ouguerram K, Besong S. Epigenetic Regulation of Peroxisome Proliferator-Activated Receptor Gamma Mediates High-Fat Diet-Induced Non-Alcoholic Fatty Liver Disease. Cells 2021; 10:1355. [PMID: 34072832 PMCID: PMC8229510 DOI: 10.3390/cells10061355] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2021] [Revised: 05/26/2021] [Accepted: 05/28/2021] [Indexed: 02/06/2023] Open
Abstract
Non-alcoholic fatty liver disease (NAFLD) is highly prevalent in Western countries and has become a serious public health concern. Although Western-style dietary patterns, characterized by a high intake of saturated fat, is considered a risk factor for NAFLD, the molecular mechanisms leading to hepatic fat accumulation are still unclear. In this study, we assessed epigenetic regulation of peroxisome proliferator-activated receptor γ (PPARγ), modifications of gene expression, and lipid uptake in the liver of mice fed a high-fat diet (HFD), and in hepatocyte culture challenged with palmitic acid. Bisulfate pyrosequencing revealed that HFD reduced the level of cytosine methylation in the pparγ DNA promoter. This was associated with increased expression of the hepatic PPARγ, very low-density lipoprotein receptor (VLDLR) and cluster differentiating 36 (CD36), and enhanced uptake of fatty acids and very low-density lipoprotein, leading to excess hepatic lipid accumulation. Furthermore, palmitic acid overload engendered comparable modifications in hepatocytes, suggesting that dietary fatty acids contribute to the pathogenesis of NAFLD through epigenetic upregulation of PPARγ and its target genes. The significance of epigenetic regulation was further demonstrated in hepatocytes treated with DNA methylation inhibitor, showing marked upregulation of PPARγ and its target genes, leading to enhanced fatty acid uptake and storage. This study demonstrated that HFD-induction of pparγ DNA promoter demethylation increased the expression of PPARγ and its target genes, vldlr and cd36, leading to excess lipid accumulation, an important initiating mechanism by which HFD increased PPARγ and lipid accumulation. These findings provide strong evidence that modification of the pparγ promoter methylation is a crucial mechanism of regulation in NAFLD pathogenesis.
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Affiliation(s)
- Tahar Hajri
- Department of Human Ecology, Delaware State University, Dover, DE 1191, USA;
| | - Mohamed Zaiou
- The Jean-Lamour Institute, UMR 7198 CNRS, University of Lorraine, F-54000 Nancy, France;
| | - Thomas V. Fungwe
- Department of Nutritional Sciences, School of Nursing and Allied Health Sciences, Howard University, Washington, DC 20059, USA;
| | - Khadija Ouguerram
- UMR1280 PhAN, Physiopathology of Nutritional Adaptations, INRA, University of Nantes, CHU Hôtel Dieu, IMAD, CRNH Ouest, 44000 Nantes, France;
| | - Samuel Besong
- Department of Human Ecology, Delaware State University, Dover, DE 1191, USA;
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Abstract
Obesity is an important cause of morbidity and mortality due to its close association with metabolic disorders including diabetes, cardiovascular diseases, and certain types of cancer. According to the Developmental Origins of Adult Health and Disease hypothesis, obesity is likely caused by epigenetic changes. Recent studies have shown an association between epigenetic dysregulation of certain genes and obesity. Due to their reversible characteristic, epigenetic dysregulations can be restored. Restoration of epigenetic dysregulation in obesity-related genes by epigenetic modifiers may be a new treatment option for obesity. Certain phytochemicals such as tea polyphenols, curcumin, genistein, isothiocyanates, and citrus isoflavonoids were shown to prevent weight gain. These phytochemicals are known for their antioxidant effects but they also modify epigenetic mechanisms. These phytochemicals may have a therapeutic potential in the management of obesity. The aim of this study was to review the epigenetic effects of certain phytochemicals on the expression of obesity-related genes.
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13
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Abstract
Pterostilbene, 3',5'-dimethoxy-4-hydroxystilbene, is a resveratrol analogue and has been reported to have similar and often potent health-promoting properties. Pterostilbene has been shown to reduce weight gain, liver fat, plasma cholesterol, adiposity, inflammatory biomarkers, blood glucose, and other physiological characteristics of metabolic diseases in animal models. Studies on pterostilbene suggest that it may improve risk factors associated with diabetes, cardiovascular disease, fatty liver diseases, Alzheimer's disease, and other neurodegenerative diseases. Many of the extensive studies on the potential health benefits of pterostilbene were conducted by Dr. Agnes Rimando, a scientist with the United States Department of Agriculture, in collaboration with many U.S. and other international research groups. This review highlights the pterostilbene research of Dr. Rimando.
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Affiliation(s)
- Hyunsook Kim
- Department of Food and Nutrition, Hanyang University, Seoul 133-791, South Korea
| | - Kun-Ho Seo
- Center for One Health, College of Veterinary Medicine, Konkuk University, Seoul 05029, South Korea
| | - Wallace Yokoyama
- Western Research Center, United States Departement of Agriculture (USDA), Albany, California 94719, United States
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Yamasaki S, Kimura G, Koizumi K, Dai N, Ketema RM, Tomihara T, Ueno Y, Ohno Y, Sato S, Kurasaki M, Hosokawa T, Saito T. Maternal green tea extract intake during lactation attenuates hepatic lipid accumulation in adult male rats exposed to a continuous high-fat diet from the foetal period. Food Nutr Res 2020; 64:5231. [PMID: 34908919 PMCID: PMC8634344 DOI: 10.29219/fnr.v64.5231] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2020] [Revised: 06/18/2020] [Accepted: 06/24/2020] [Indexed: 11/30/2022] Open
Abstract
Background Maternal lipid intake in the early postnatal period has a long-term effect on the possibility of fatty liver formation in children; besides, the importance of lipid consumption during lactation for children’s health has been suggested. Green tea extract (GTE) contains abundant catechins, and it has been reported to improve lipid metabolism and prevent fatty liver. Objective The aim of this study was to examine the effects of maternal GTE intake during lactation on hepatic lipid accumulation in adult male rats exposed to a continuous high-fat (HF) diet from the foetal period. Methods Pregnant Wistar rats received diets containing 13% (control-fat, CON) or 45% (high-fat, HF) fat. CON-fed mothers received the same diet during lactation, whereas HF-fed mothers received either HF diet alone or HF diet supplemented with 0.24% GTE. At weaning, male offspring were divided into three groups, i.e. CON/CON/CON, HF/HF/HF (HF-offspring) or HF/HF+GTE/HF (GTE-offspring), and were fed until 51 weeks. Results A significant hepatic triglyceride (Tg) accumulation was observed in the HF-offspring when compared with the other offspring. This is presumed to be caused by the promotion of Tg synthesis derived from exogenous fatty acid due to a significant increase in diacylglycerol O-acyltransferase 1 and a decrease in Tg expenditure caused by decreasing microsomal triglyceride transfer protein (MTTP) and long-chain acyl-CoA dehydrogenase. On the other hand, attenuated hepatic Tg accumulation was observed in the GTE-offspring. The levels of the hepatic lipid metabolism-related enzymes were improved to the same level as the CON-offspring, and particularly, MTTP was significantly increased as compared with the HF-offspring. Conclusion This study indicates the potential protective effects of maternal GTE intake during lactation on HF diet-induced hepatic lipid accumulation in adult male rat offspring and the possible underlying mechanisms.
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Affiliation(s)
- Shojiro Yamasaki
- Graduate School of Health Sciences, Hokkaido University, Sapporo, Japan
| | - Goh Kimura
- Graduate School of Health Sciences, Hokkaido University, Sapporo, Japan
| | - Kazunari Koizumi
- Graduate School of Health Sciences, Hokkaido University, Sapporo, Japan
| | - Ning Dai
- Graduate School of Health Sciences, Hokkaido University, Sapporo, Japan
| | | | - Tomomi Tomihara
- Graduate School of Health Sciences, Hokkaido University, Sapporo, Japan
| | - Yukako Ueno
- Graduate School of Health Sciences, Hokkaido University, Sapporo, Japan
| | - Yuki Ohno
- Graduate School of Health Sciences, Hokkaido University, Sapporo, Japan
| | - Shin Sato
- Department of Nutrition, Aomori University of Health and Welfare, Aomori, Japan
| | - Masaaki Kurasaki
- Faculty of Environmental Earth Science, Hokkaido University, Sapporo, Japan
| | - Toshiyuki Hosokawa
- Institute for the Advancement of Higher Education, Hokkaido University, Sapporo, Japan
| | - Takeshi Saito
- Faculty of Health Sciences, Hokkaido University, Sapporo, Japan
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15
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Abid F, Saleem M, Yasir S, Arshad S, Qureshi S, Bajwa MA, Ashiq S, Tanveer S, Qayyum M, Ashiq K. CANCER EPIGENETICS AND THE ROLE OF DIETARY ELEMENTS. GJMS 2020. [DOI: 10.46903/gjms/17.03.2070] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022] Open
Abstract
Cancer has been a fatal disease since many decades. Over the time, it is presented in multiple ways and is a matter of consideration as accounts for the high rate of mortality. The aim of the current review was to focus on the genetics, epigenetics factors and role of medicinal plants for the cure of this inimical disease. Related articles available in English language (2002-2018) were reviewed with help of different database, including PubMed, Springer Link, Medline, Google Scholar and ScienceDirect. In order to ensure credibility and accuracy of data only those articles were considered which are published in indexed journals i.e. Web of Science and Scopus. This project was conducted at the Department of Pharmacy, Government College University, Faisalabad, Pakistan from 02-01-2019 to 28-02-2019. The genetic machinery is vibrantly involved in the interpretation of the signals and is observed to be affected by various dietary factors. A sequence of modified activities is observed with use of these dietary elements. However, the modification is reviewed through the histone acetyltransferase (HAT), histone deacetylase (HDAC) and DNA methyl transferase (DNMTs), effecting the expression of gene. These modified genes, in turn then express the signals in multiple reformed ways. Different dietary elements that are used such as polyphenol, alkaloid and flavonoids are effective against cancer. The progression of disease involves genetics and epigenetics due to amplification, translocation and mutation during gene expression. Though, many studies have been conducted elaborating the role of plants and their ingredients which play a part in inhibition of cancerous cells by blockade of cell cycle and apoptosis; more in-depth investigations are still required to identify the new drug target and novel therapeutic modalities.
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16
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Meroni M, Longo M, Rustichelli A, Dongiovanni P. Nutrition and Genetics in NAFLD: The Perfect Binomium. Int J Mol Sci 2020; 21:ijms21082986. [PMID: 32340286 PMCID: PMC7215858 DOI: 10.3390/ijms21082986] [Citation(s) in RCA: 52] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2020] [Revised: 04/19/2020] [Accepted: 04/21/2020] [Indexed: 02/06/2023] Open
Abstract
Nonalcoholic fatty liver disease (NAFLD) represents a global healthcare burden since it is epidemiologically related to obesity, type 2 diabetes (T2D) and Metabolic Syndrome (MetS). It embraces a wide spectrum of hepatic injuries, which include simple steatosis, nonalcoholic steatohepatitis (NASH), fibrosis, cirrhosis and hepatocellular carcinoma (HCC). The susceptibility to develop NAFLD is highly variable and it is influenced by several cues including environmental (i.e., dietary habits and physical activity) and inherited (i.e., genetic/epigenetic) risk factors. Nonetheless, even intestinal microbiota and its by-products play a crucial role in NAFLD pathophysiology. The interaction of dietary exposure with the genome is referred to as 'nutritional genomics,' which encompasses both 'nutrigenetics' and 'nutriepigenomics.' It is focused on revealing the biological mechanisms that entail both the acute and persistent genome-nutrient interactions that influence health and it may represent a promising field of study to improve both clinical and health nutrition practices. Thus, the premise of this review is to discuss the relevance of personalized nutritional advices as a novel therapeutic approach in NAFLD tailored management.
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Affiliation(s)
- Marica Meroni
- General Medicine and Metabolic Diseases, Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico, Pad. Granelli, via F Sforza 35, 20122 Milan, Italy; (M.M.); (M.L.); (A.R.)
- Department of Pathophysiology and Transplantation, Università degli Studi di Milano, 20122 Milano, Italy
| | - Miriam Longo
- General Medicine and Metabolic Diseases, Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico, Pad. Granelli, via F Sforza 35, 20122 Milan, Italy; (M.M.); (M.L.); (A.R.)
- Department of Clinical Sciences and Community Health, Università degli Studi di Milano, 20122 Milano, Italy
| | - Alice Rustichelli
- General Medicine and Metabolic Diseases, Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico, Pad. Granelli, via F Sforza 35, 20122 Milan, Italy; (M.M.); (M.L.); (A.R.)
| | - Paola Dongiovanni
- General Medicine and Metabolic Diseases, Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico, Pad. Granelli, via F Sforza 35, 20122 Milan, Italy; (M.M.); (M.L.); (A.R.)
- Correspondence: ; Tel.: +39-02-5503-3467; Fax: +39-02-5503-4229
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17
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Beetch M, Lubecka K, Shen K, Flower K, Harandi‐Zadeh S, Suderman M, Flanagan JM, Stefanska B. Stilbenoid‐Mediated Epigenetic Activation of Semaphorin 3A in Breast Cancer Cells Involves Changes in Dynamic Interactions of DNA with DNMT3A and NF1C Transcription Factor. Mol Nutr Food Res 2019; 63:e1801386. [DOI: 10.1002/mnfr.201801386] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2018] [Revised: 06/13/2019] [Indexed: 01/11/2023]
Affiliation(s)
- Megan Beetch
- University of British Columbia 2329 West Mall Vancouver BC V6T 1Z4 Canada
| | - Katarzyna Lubecka
- Department of Biomedical ChemistryMedical University of Lodz al. Tadeusza Kościuszki 4 90‐419 Łódź Poland
| | - Kate Shen
- University of British Columbia 2329 West Mall Vancouver BC V6T 1Z4 Canada
| | - Kirsty Flower
- Epigenetic Unit, Department of Surgery and CancerImperial College LondonSouth Kensington Campus London SW7 2AZ UK
| | | | - Matthew Suderman
- School of Social and Community MedicineMRC Integrative Epidemiology UnitUniversity of Bristol Beacon House Queens Road Bristol ESB 1QU UK
| | - James M Flanagan
- Epigenetic Unit, Department of Surgery and CancerImperial College LondonSouth Kensington Campus London SW7 2AZ UK
| | - Barbara Stefanska
- University of British Columbia 2329 West Mall Vancouver BC V6T 1Z4 Canada
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18
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Carpéné C, Les F, Cásedas G, Peiro C, Fontaine J, Chaplin A, Mercader J, López V. Resveratrol Anti-Obesity Effects: Rapid Inhibition of Adipocyte Glucose Utilization. Antioxidants (Basel) 2019; 8:E74. [PMID: 30917543 DOI: 10.3390/antiox8030074] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2019] [Revised: 03/19/2019] [Accepted: 03/22/2019] [Indexed: 12/11/2022] Open
Abstract
Studies in animal models of diabetes and obesity have shown that resveratrol mitigates complications of metabolic diseases, beyond those resulting from oxidative stress. Furthermore, results obtained with cultured preadipocytes have also revealed that prolonged resveratrol treatment impairs adipogenesis. Considering the role of adipocytes in the hypertrophy of fat stores, and keeping in mind that insulin is the main trigger of excessive energy storage during post-prandial periods, the present study aimed to investigate how short-term effects of resveratrol can limit glucose disposal in a gut-adipose tissue axis. We found that resveratrol exhibits a more potent inhibitory capacity towards α-glucosidase than pancreatic lipase activity. Resveratrol also rapidly blunts glucose transport in mature fat cells by counteracting the effect of insulin and insulin-like lipogenic agents. Within two hours, resveratrol also inhibited the incorporation of glucose into lipids of adipocytes, which was unaffected by membrane cholesterol depletion. Moreover, the comparison between adipocytes with invalidated semicarbazide-sensitive amine oxidase activity and their control, or between resveratrol and several inhibitors, did not indicate that the recently described interaction of resveratrol with amine oxidases was involved in its antilipogenic effect. Caffeine and piceatannol, previously said to interact with glucose carriers, also inhibit lipogenesis in adipocytes, whereas other antioxidant phytochemicals do not reproduce such an antilipogenic effect. This study highlights the diverse first steps by which resveratrol impairs excessive fat accumulation, indicating that this natural molecule and its derivatives deserve further studies to develop their potential anti-obesity properties.
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19
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Shu L, Meng Q, Diamante G, Tsai B, Chen YW, Mikhail A, Luk H, Ritz B, Allard P, Yang X. Prenatal Bisphenol A Exposure in Mice Induces Multitissue Multiomics Disruptions Linking to Cardiometabolic Disorders. Endocrinology 2019; 160:409-429. [PMID: 30566610 PMCID: PMC6349005 DOI: 10.1210/en.2018-00817] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/16/2018] [Accepted: 12/13/2018] [Indexed: 12/21/2022]
Abstract
The health impacts of endocrine-disrupting chemicals (EDCs) remain debated, and their tissue and molecular targets are poorly understood. In this study, we leveraged systems biology approaches to assess the target tissues, molecular pathways, and gene regulatory networks associated with prenatal exposure to the model EDC bisphenol A (BPA). Prenatal BPA exposure at 5 mg/kg/d, a dose below most reported no-observed-adverse-effect levels, led to tens to thousands of transcriptomic and methylomic alterations in the adipose, hypothalamus, and liver tissues in male offspring in mice, with cross-tissue perturbations in lipid metabolism as well as tissue-specific alterations in histone subunits, glucose metabolism, and extracellular matrix. Network modeling prioritized main molecular targets of BPA, including Pparg, Hnf4a, Esr1, Srebf1, and Fasn as well as numerous less studied targets such as Cyp51 and long noncoding RNAs across tissues, Fa2h in hypothalamus, and Nfya in adipose tissue. Lastly, integrative analyses identified the association of BPA molecular signatures with cardiometabolic phenotypes in mouse and human. Our multitissue, multiomics investigation provides strong evidence that BPA perturbs diverse molecular networks in central and peripheral tissues and offers insights into the molecular targets that link BPA to human cardiometabolic disorders.
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Affiliation(s)
- Le Shu
- Department of Integrative Biology and Physiology, University of California, Los Angeles, Los Angeles, California
- Molecular, Cellular, and Integrative Physiology Interdepartmental Program, University of California, Los Angeles, Los Angeles, California
| | - Qingying Meng
- Department of Integrative Biology and Physiology, University of California, Los Angeles, Los Angeles, California
| | - Graciel Diamante
- Department of Integrative Biology and Physiology, University of California, Los Angeles, Los Angeles, California
| | - Brandon Tsai
- Department of Integrative Biology and Physiology, University of California, Los Angeles, Los Angeles, California
| | - Yen-Wei Chen
- Molecular Toxicology Interdepartmental Program, University of California, Los Angeles, Los Angeles, California
| | - Andrew Mikhail
- Department of Integrative Biology and Physiology, University of California, Los Angeles, Los Angeles, California
| | - Helen Luk
- Department of Integrative Biology and Physiology, University of California, Los Angeles, Los Angeles, California
| | - Beate Ritz
- Department of Epidemiology, Fielding School of Public Health, University of California, Los Angeles, Los Angeles, California
- Institute for Society and Genetics, University of California, Los Angeles, Los Angeles, California
| | - Patrick Allard
- Molecular Toxicology Interdepartmental Program, University of California, Los Angeles, Los Angeles, California
- Institute for Society and Genetics, University of California, Los Angeles, Los Angeles, California
| | - Xia Yang
- Department of Integrative Biology and Physiology, University of California, Los Angeles, Los Angeles, California
- Molecular, Cellular, and Integrative Physiology Interdepartmental Program, University of California, Los Angeles, Los Angeles, California
- Molecular Toxicology Interdepartmental Program, University of California, Los Angeles, Los Angeles, California
- Institute for Quantitative and Computational Biosciences, University of California, Los Angeles, Los Angeles, California
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20
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Tojal A, Neves C, Veiga H, Ferreira S, Rodrigues I, Martel F, Calhau C, Negrão R, Keating E. Perigestational high folic acid: impact on offspring's peripheral metabolic response. Food Funct 2019; 10:7216-7226. [DOI: 10.1039/c9fo01807g] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Perigestational excess folic acid programmed offspring to increased weight gain, but also to adipocyte hypertrophy, associated with Lpl upregulation, and to hyperglycemia, possibly due to VAT and skeletal muscle Glut4 downregulation.
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21
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Beetch M, Lubecka K, Kristofzski H, Suderman M, Stefanska B. Subtle Alterations in DNA Methylation Patterns in Normal Cells in Response to Dietary Stilbenoids. Mol Nutr Food Res 2018; 62:e1800193. [PMID: 29797699 DOI: 10.1002/mnfr.201800193] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2018] [Revised: 04/18/2018] [Indexed: 01/24/2023]
Abstract
SCOPE Searching for correlations between dietary polyphenols and risk of chronic diseases has been a challenge due to the lack of quantitative evaluation methods of long-term exposure. We previously observed substantial DNA methylation changes in human cancer cells upon treatment with polyphenols of the stilbenoid class. When induced in normal cells, such molecular changes may persist and reflect chronic exposure. METHODS AND RESULTS Illumina 450K microarray is used to delineate a genome wide DNA methylation landscape in MCF10A human immortalized mammary epithelial cells exposed to resveratrol (RSV) at noncytotoxic 15 μM dose for 9 days. Subtle alterations are observed suggesting remodeling of DNA methylation patterns rather than switch on/off changes. Using pyrosequencing, DNA methylation is quantitatively measured at eight CpG sites located within KCNJ4, RNF169, BCHE, DAOA, HOXA9, RUNX3, KRTAP2-1, and TAGAP, upon exposure to RSV or pterostilbene and shows similar differences induced by both stilbenoids. Two of the probes, Runx3 and Kcnj4, are successfully verified in whole blood DNA from healthy rats on diets supplemented with stilbenoids. CONCLUSIONS The study provides strong support for testing the utility of polyphenol-mediated changes in DNA methylation as quantitative measures of long-term dietary exposures in nutritional epidemiology and clinical trials.
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Affiliation(s)
- Megan Beetch
- Food, Nutrition and Health Program, Faculty of Land and Food Systems, the University of British Columbia, Vancouver, BC, V6T 1Z4, Canada
| | - Katarzyna Lubecka
- Department of Biomedical Chemistry, Medical University of Lodz, Lodz, 92-215, Poland
| | - Heather Kristofzski
- Department of Nutrition Science, Purdue University, West Lafayette, IN, 47907, USA
| | - Matthew Suderman
- School of Social and Community Medicine, University of Bristol, Bristol, BS8 2BN, UK.,MRC Integrative Epidemiology Unit, University of Bristol, Bristol, BS8 2BN, UK
| | - Barbara Stefanska
- Food, Nutrition and Health Program, Faculty of Land and Food Systems, the University of British Columbia, Vancouver, BC, V6T 1Z4, Canada
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22
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Chu SH, Loucks EB, Kelsey KT, Gilman SE, Agha G, Eaton CB, Buka SL, Huang YT. Sex-specific epigenetic mediators between early life social disadvantage and adulthood BMI. Epigenomics 2018; 10:707-722. [PMID: 29888956 DOI: 10.2217/epi-2017-0146] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
AIM The objective of this study was to identify potential epigenetic mediating pathways linking early life social disadvantage (ELSD) to adulthood BMI. METHODS Sex-specific epigenome-wide two-stage mediation analyses were conducted in blood and adipose tissue, and mediation estimates were obtained using cross-product mediation analysis. Pathway analyses were conducted using GREAT software (Bejerano Lab, CA, USA). RESULTS Candidate mediation CpG sites were identified in adipose tissue, but not blood, and were sex-specific. Significant mediation sites in females included CpG loci in genes: PKHG1, BCAR3, ADAM5P, PIEZO1, FGFRL1, FASN and DPP9, among others. Pathway analyses revealed evidence of enrichment for processes associated with TFG-β signaling and immunologic signatures. In males, significant mediation loci included sites in MAP3K5 and RPTOR, which have previously been associated with adipogenesis, inflammation and insulin resistance. CONCLUSION Our findings provide supportive evidence for the mediating role of epigenetic mechanisms in the effect of early life social disadvantage on adulthood BMI.
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Affiliation(s)
- Su H Chu
- Department of Epidemiology, Brown School of Public Health, Providence, RI, 02912, USA.,Channing Division of Network Medicine, Brigham & Women's Hospital & Harvard Medical School, Boston, MA, 02115, USA
| | - Eric B Loucks
- Department of Epidemiology, Brown School of Public Health, Providence, RI, 02912, USA
| | - Karl T Kelsey
- Department of Epidemiology, Brown School of Public Health, Providence, RI, 02912, USA.,Department of Pathology & Laboratory Medicine, Brown University Warren Alpert Medical School, Providence, RI, 02912, USA
| | - Stephen E Gilman
- Health Behavior Branch, Division of Intramural Population Health Research, Eunice Kennedy Shriver National Institute of Child Health & Human Development, Bethesda, MD, 20892, USA.,Department of Social & Behavioral Sciences, Harvard TH Chan School of Public Health, Boston, MA, 02115, USA.,Department of Epidemiology, Harvard TH Chan School of Public Health, Boston, MA, 02115, USA.,Department of Mental Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, 21205, USA
| | - Golareh Agha
- Columbia Aging Center, Mailman School of Public Health, Columbia University, New York, NY, 10032, USA
| | - Charles B Eaton
- Department of Epidemiology, Brown School of Public Health, Providence, RI, 02912, USA.,Department of Family Medicine, Brown University Warren Alpert Medical School, Providence, RI, 02912, USA
| | - Stephen L Buka
- Department of Epidemiology, Brown School of Public Health, Providence, RI, 02912, USA
| | - Yen-Tsung Huang
- Department of Epidemiology, Brown School of Public Health, Providence, RI, 02912, USA.,Department of Biostatistics, Brown School of Public Health, Providence, RI, 02912, USA.,Institute of Statistical Science, Academia Sinica, Taipei, 11529, Taiwan
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23
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Szabó M, Máté B, Csép K, Benedek T. Epigenetic Modifications Linked to T2D, the Heritability Gap, and Potential Therapeutic Targets. Biochem Genet 2018; 56:553-74. [DOI: 10.1007/s10528-018-9863-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2017] [Accepted: 05/16/2018] [Indexed: 12/22/2022]
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24
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Nowacka-Woszuk J, Madeja ZE, Chmurzynska A. Prenatal caloric restriction alters lipid metabolism but not hepatic Fasn gene expression and methylation profiles in rats. BMC Genet 2017; 18:78. [PMID: 28810876 PMCID: PMC5558693 DOI: 10.1186/s12863-017-0544-0] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2017] [Accepted: 08/08/2017] [Indexed: 01/05/2023] Open
Abstract
Background Undernutrition is an increasingly common problem. Insufficient calorie intake and nutrient deficiencies during pregnancy may have an impact not only on the mother, but may also alter metabolism in the infant. In this study, we have applied a calorie-restricted diet during gestation and examined its effect on hepatic Fasn mRNA and DNA methylation profiles in rats and their female progeny. The body composition and blood lipid profiles were also evaluated in both generations. Results The results showed that the investigated diet regimen exerted a greater effect on the dams than on the offspring. We found that, in the calorie-restricted group, the transcript level of the Fasn gene in the liver increased in the mothers, while in the progeny it was only slightly enhanced. The implemented diet altered lipid profile in the dams by decreasing total cholesterol, HDL, and TG levels. An increase in LDL was noted in the offspring. No change in DNA methylation profile was observed in response to the calorie-restricted diet. Conclusions Calorie restriction during pregnancy modified the hepatic Fasn mRNA transcript level and altered the blood cholesterol concentrations in dams, but there were no such effects in their four-week-old offspring. The examined dietary regimen had no effect on DNA methylation of the Fasn 5′-flanking region in the rat liver. Electronic supplementary material The online version of this article (doi:10.1186/s12863-017-0544-0) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Joanna Nowacka-Woszuk
- Department of Genetics and Animal Breeding, Poznań University of Life Sciences, Wolynska 33, 60-637, Poznan, Poland
| | - Zofia E Madeja
- Department of Genetics and Animal Breeding, Poznań University of Life Sciences, Wolynska 33, 60-637, Poznan, Poland
| | - Agata Chmurzynska
- Department of Human Nutrition and Hygiene, Poznań University of Life Sciences, Wojska Polskiego 31, 60-624, Poznan, Poland.
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25
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Ramos-Lopez O, Milagro FI, Allayee H, Chmurzynska A, Choi MS, Curi R, De Caterina R, Ferguson LR, Goni L, Kang JX, Kohlmeier M, Marti A, Moreno LA, Pérusse L, Prasad C, Qi L, Reifen R, Riezu-Boj JI, San-Cristobal R, Santos JL, Martínez JA. Guide for Current Nutrigenetic, Nutrigenomic, and Nutriepigenetic Approaches for Precision Nutrition Involving the Prevention and Management of Chronic Diseases Associated with Obesity. J Nutrigenet Nutrigenomics 2017; 10:43-62. [PMID: 28689206 DOI: 10.1159/000477729] [Citation(s) in RCA: 90] [Impact Index Per Article: 12.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Chronic diseases, including obesity, are major causes of morbidity and mortality in most countries. The adverse impacts of obesity and associated comorbidities on health remain a major concern due to the lack of effective interventions for prevention and management. Precision nutrition is an emerging therapeutic approach that takes into account an individual's genetic and epigenetic information, as well as age, gender, or particular physiopathological status. Advances in genomic sciences are contributing to a better understanding of the role of genetic variants and epigenetic signatures as well as gene expression patterns in the development of diverse chronic conditions, and how they may modify therapeutic responses. This knowledge has led to the search for genetic and epigenetic biomarkers to predict the risk of developing chronic diseases and personalizing their prevention and treatment. Additionally, original nutritional interventions based on nutrients and bioactive dietary compounds that can modify epigenetic marks and gene expression have been implemented. Although caution must be exercised, these scientific insights are paving the way for the design of innovative strategies for the control of chronic diseases accompanying obesity. This document provides a number of examples of the huge potential of understanding nutrigenetic, nutrigenomic, and nutriepigenetic roles in precision nutrition.
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Affiliation(s)
- Omar Ramos-Lopez
- Department of Molecular Biology in Medicine, Civil Hospital of Guadalajara "Fray Antonio Alcalde" and Health Sciences University Center, University of Guadalajara, Guadalajara, Mexico
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Gomez-Zorita S, Belles C, Briot A, Fernández-Quintela A, Portillo MP, Carpéné C. Pterostilbene Inhibits Lipogenic Activity similar to Resveratrol or Caffeine but Differently Modulates Lipolysis in Adipocytes. Phytother Res 2017. [PMID: 28627722 DOI: 10.1002/ptr.5852] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
The anti-obesity effects of resveratrol shown in rodents are not transposed into an efficient therapy of human obesity. Consequently, the search for molecules mimicking or surpassing resveratrol actions is ongoing. The natural phenolic compound pterostilbene exhibits beneficial health effects and has the capacity to limit fat mass in animal models. In this study, we tested whether pterostilbene modulates triacylglycerol accumulation/breakdown. Prolonged exposure to pterostilbene or resveratrol inhibited adipocyte differentiation in 3T3-F442A preadipocytes. Acute effects on lipolysis, antilipolysis and lipogenesis were determined for pterostilbene in mouse adipocytes, and compared with resveratrol. Pterostilbene was also tested on glycerol release and glucose uptake in subcutaneous human adipocytes. Dose-response analyses did not reveal a clear lipolytic effect in both species. The antilipolytic effect of insulin was improved by pterostilbene at 1-10 μM in mouse fat cells only, while at 1 mM, the phenolic compound was antilipolytic in human fat cells in a manner not additive to insulin. Pterostilbene dose-dependently inhibited glucose incorporation into lipids similarly to resveratrol and caffeine. However, only the former did not inhibit insulin-stimulated glucose uptake. Indeed, pterostilbene abolished the insulin lipogenic effect without inhibiting its antilipolytic action and rapid activation of glucose uptake. Pterostilbene therefore exhibits a unique panel of direct interactions with adipocytes that relies on its reported anti-obesity and antidiabetic properties. Copyright © 2017 John Wiley & Sons, Ltd.
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Affiliation(s)
- Saioa Gomez-Zorita
- INSERM U1048, Institut des Maladies Métaboliques et Cardiovasculaires (I2MC), Institut. National de la Santé et de la Recherche Médicale and Université Paul Sabatier, Toulouse, France.,Nutrition and Obesity Group, Department of Nutrition and Food Science, University of the Basque Country (UPV/EHU) and Lucio Lascaray Centre, Vitoria, Spain.,CIBERobn Physiopathology of Obesity and Nutrition, Institute of Health Carlos III (ISCIII), Spain
| | - Chloé Belles
- INSERM U1048, Institut des Maladies Métaboliques et Cardiovasculaires (I2MC), Institut. National de la Santé et de la Recherche Médicale and Université Paul Sabatier, Toulouse, France.,DIVA expertise, Centre Pierre Potier, Toulouse, France
| | - Anaïs Briot
- INSERM U1048, Institut des Maladies Métaboliques et Cardiovasculaires (I2MC), Institut. National de la Santé et de la Recherche Médicale and Université Paul Sabatier, Toulouse, France
| | - Alfredo Fernández-Quintela
- Nutrition and Obesity Group, Department of Nutrition and Food Science, University of the Basque Country (UPV/EHU) and Lucio Lascaray Centre, Vitoria, Spain.,CIBERobn Physiopathology of Obesity and Nutrition, Institute of Health Carlos III (ISCIII), Spain
| | - Maria P Portillo
- Nutrition and Obesity Group, Department of Nutrition and Food Science, University of the Basque Country (UPV/EHU) and Lucio Lascaray Centre, Vitoria, Spain.,CIBERobn Physiopathology of Obesity and Nutrition, Institute of Health Carlos III (ISCIII), Spain
| | - Christian Carpéné
- INSERM U1048, Institut des Maladies Métaboliques et Cardiovasculaires (I2MC), Institut. National de la Santé et de la Recherche Médicale and Université Paul Sabatier, Toulouse, France
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Affiliation(s)
- Gian Luigi Russo
- Istituto di Scienze dell'Alimentazione, Consiglio Nazionale delle Ricerche, Avellino, Italy
| | - Viviana Vastolo
- Dipartimento di Scienze Mediche Traslazionali, UniversitàdegliStudi di Napoli ‘Federico II’, Napoli, Italy
| | - Marco Ciccarelli
- Dipartimento di Scienze Mediche Traslazionali, UniversitàdegliStudi di Napoli ‘Federico II’, Napoli, Italy
| | - Luigi Albano
- Dipartimento di Scienze Mediche Traslazionali, UniversitàdegliStudi di Napoli ‘Federico II’, Napoli, Italy
| | - Paolo Emidio Macchia
- Dipartimento di Medicina Clinica e Chirurgia, Università degli Studi di Napoli ‘Federico II’, Napoli, Italy
| | - Paola Ungaro
- Istituto di Endocrinologia ed Oncologia Sperimentale ‘G. Salvatore’, Consiglio Nazionaledelle Ricerche, Napoli, Italy
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Nagao K, Jinnouchi T, Kai S, Yanagita T. Pterostilbene, a dimethylated analog of resveratrol, promotes energy metabolism in obese rats. J Nutr Biochem 2017; 43:151-155. [PMID: 28319852 DOI: 10.1016/j.jnutbio.2017.02.009] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2016] [Revised: 12/29/2016] [Accepted: 02/08/2017] [Indexed: 11/27/2022]
Abstract
Pterostilbene (trans-3,5-dimethoxy-4-hydroxystilbene) is a dimethylated analog of resveratrol and has been reported to exert various pharmacological effects. In this study, we evaluated the effect of pterostilbene on the pathogenesis of obesity and energy metabolism in obese rats. Pterostilbene significantly activates silent mating type information regulation 2 homolog-1 and peroxisome proliferator-activated receptor-alpha in vitro. At 4 weeks a 0.5% pterostilbene diet markedly suppressed the abdominal white adipose tissue (WAT) accumulation in obese rats. The oxygen consumption and energy expenditure were significantly higher in the pterostilbene group, and pterostilbene increased the fat metabolism rather than the carbohydrate metabolism in obese rats. The mRNA level of uncoupling protein, a thermogenic regulator, was increased and the mRNA levels of fatty acid synthase and leptin, which are involved in lipogenesis and fat storage, were markedly decreased in WAT after the pterostilbene feeding. These results suggest that pterostilbene prevents WAT accumulation through the enhancement of energy metabolism and partly the suppression of lipogenesis in obese OLETF rats.
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Affiliation(s)
- Koji Nagao
- Department of Applied Biochemistry and Food Science, Saga University, Saga 840-8502, Japan; The United Graduate School of Agricultural Sciences, Kagoshima University, Kagoshima 890-0065, Japan.
| | - Tomoyuki Jinnouchi
- Department of Applied Biochemistry and Food Science, Saga University, Saga 840-8502, Japan
| | - Shunichi Kai
- Department of Applied Biochemistry and Food Science, Saga University, Saga 840-8502, Japan
| | - Teruyoshi Yanagita
- Department of Health and Nutrition Sciences, Nishikyushu University, Kanzaki 842-8585, Japan
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Raciti GA, Spinelli R, Desiderio A, Longo M, Parrillo L, Nigro C, D'Esposito V, Mirra P, Fiory F, Pilone V, Forestieri P, Formisano P, Pastan I, Miele C, Beguinot F. Specific CpG hyper-methylation leads to Ankrd26 gene down-regulation in white adipose tissue of a mouse model of diet-induced obesity. Sci Rep 2017; 7:43526. [PMID: 28266632 PMCID: PMC5339897 DOI: 10.1038/srep43526] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2016] [Accepted: 01/27/2017] [Indexed: 12/16/2022] Open
Abstract
Epigenetic modifications alter transcriptional activity and contribute to the effects of environment on the individual risk of obesity and Type 2 Diabetes (T2D). Here, we have estimated the in vivo effect of a fat-enriched diet (HFD) on the expression and the epigenetic regulation of the Ankyrin repeat domain 26 (Ankrd26) gene, which is associated with the onset of these disorders. In visceral adipose tissue (VAT), HFD exposure determined a specific hyper-methylation of Ankrd26 promoter at the −436 and −431 bp CpG sites (CpGs) and impaired its expression. Methylation of these 2 CpGs impaired binding of the histone acetyltransferase/transcriptional coactivator p300 to this same region, causing hypo-acetylation of histone H4 at the Ankrd26 promoter and loss of binding of RNA Pol II at the Ankrd26 Transcription Start Site (TSS). In addition, HFD increased binding of DNA methyl-transferases (DNMTs) 3a and 3b and methyl-CpG-binding domain protein 2 (MBD2) to the Ankrd26 promoter. More importantly, Ankrd26 down-regulation enhanced secretion of pro-inflammatory mediators by 3T3-L1 adipocytes as well as in human sera. Thus, in mice, the exposure to HFD induces epigenetic silencing of the Ankrd26 gene, which contributes to the adipose tissue inflammatory secretion profile induced by high-fat regimens.
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Affiliation(s)
- Gregory A Raciti
- URT of the Institute of Experimental Endocrinology and Oncology "G. Salvatore", National Council of Research, Naples, 80131, Italy.,Department of Translational Medical Sciences, University of Naples "Federico II", Naples, 80131, Italy
| | - Rosa Spinelli
- URT of the Institute of Experimental Endocrinology and Oncology "G. Salvatore", National Council of Research, Naples, 80131, Italy.,Department of Translational Medical Sciences, University of Naples "Federico II", Naples, 80131, Italy
| | - Antonella Desiderio
- URT of the Institute of Experimental Endocrinology and Oncology "G. Salvatore", National Council of Research, Naples, 80131, Italy.,Department of Translational Medical Sciences, University of Naples "Federico II", Naples, 80131, Italy
| | - Michele Longo
- URT of the Institute of Experimental Endocrinology and Oncology "G. Salvatore", National Council of Research, Naples, 80131, Italy.,Department of Translational Medical Sciences, University of Naples "Federico II", Naples, 80131, Italy
| | - Luca Parrillo
- URT of the Institute of Experimental Endocrinology and Oncology "G. Salvatore", National Council of Research, Naples, 80131, Italy.,Department of Translational Medical Sciences, University of Naples "Federico II", Naples, 80131, Italy
| | - Cecilia Nigro
- URT of the Institute of Experimental Endocrinology and Oncology "G. Salvatore", National Council of Research, Naples, 80131, Italy.,Department of Translational Medical Sciences, University of Naples "Federico II", Naples, 80131, Italy
| | - Vittoria D'Esposito
- URT of the Institute of Experimental Endocrinology and Oncology "G. Salvatore", National Council of Research, Naples, 80131, Italy.,Department of Translational Medical Sciences, University of Naples "Federico II", Naples, 80131, Italy
| | - Paola Mirra
- URT of the Institute of Experimental Endocrinology and Oncology "G. Salvatore", National Council of Research, Naples, 80131, Italy.,Department of Translational Medical Sciences, University of Naples "Federico II", Naples, 80131, Italy
| | - Francesca Fiory
- URT of the Institute of Experimental Endocrinology and Oncology "G. Salvatore", National Council of Research, Naples, 80131, Italy.,Department of Translational Medical Sciences, University of Naples "Federico II", Naples, 80131, Italy
| | - Vincenzo Pilone
- Bariatric and Metabolic Surgery Unit, University of Salerno, Salerno, 84084, Italy
| | - Pietro Forestieri
- Department of Clinical Medicine and Surgery, University of Naples "Federico II", Naples, 80131, Italy
| | - Pietro Formisano
- URT of the Institute of Experimental Endocrinology and Oncology "G. Salvatore", National Council of Research, Naples, 80131, Italy.,Department of Translational Medical Sciences, University of Naples "Federico II", Naples, 80131, Italy
| | - Ira Pastan
- Laboratory of Molecular Biology (LMB), National Cancer Institute (NCI), National Institute of Health (NIH), Bethesda, MD 20892, USA
| | - Claudia Miele
- URT of the Institute of Experimental Endocrinology and Oncology "G. Salvatore", National Council of Research, Naples, 80131, Italy.,Department of Translational Medical Sciences, University of Naples "Federico II", Naples, 80131, Italy
| | - Francesco Beguinot
- URT of the Institute of Experimental Endocrinology and Oncology "G. Salvatore", National Council of Research, Naples, 80131, Italy.,Department of Translational Medical Sciences, University of Naples "Federico II", Naples, 80131, Italy
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Park JH, Kim SH, Lee MS, Kim MS. Epigenetic modification by dietary factors: Implications in metabolic syndrome. Mol Aspects Med 2017; 54:58-70. [PMID: 28216432 DOI: 10.1016/j.mam.2017.01.008] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2016] [Revised: 12/26/2016] [Accepted: 01/03/2017] [Indexed: 02/06/2023]
Abstract
Dietary factors play a role in normal biological processes and are involved in the regulation of pathological progression over a lifetime. Evidence has emerged indicating that dietary factor-dependent epigenetic modifications can significantly affect genome stability and the expression of mRNA and proteins, which are involved in metabolic dysfunction. Since metabolic syndrome is a progressive phenotype characterized by insulin resistance, obesity, hypertension, dyslipidemia, or type 2 diabetes, gene-diet interactions are important processes involved in the initiation of particular symptoms of metabolic syndrome and their progression. Some epigenetic risk markers can be initiated or reversed by diet and environmental factors. In this review, we discuss recent advances in our understanding of the interactions between dietary factors and epigenetic changes in metabolic syndrome. We discuss the contribution of nutritional factors in transgenerational inheritance of epigenetic markers and summarize the current knowledge of epigenetic modifications by dietary bioactive components in metabolic diseases. The intake of dietary components that regulate epigenetic modifications can provide significant health effects and, as an epigenetic diet, may prevent various pathological processes in the development of metabolic disease.
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Affiliation(s)
- Jae-Ho Park
- Division of Metabolism and Nutrition, Korea Food Research Institute, Gyeonggi-do 13539, Republic of Korea; Department of Food Biotechnology, Korea University of Science & Technology, Gyeonggi-do 13539, Republic of Korea
| | - Soon-Hee Kim
- Division of Metabolism and Nutrition, Korea Food Research Institute, Gyeonggi-do 13539, Republic of Korea
| | - Myeong Soo Lee
- Clinical Research Division, Korea Institute of Oriental Medicine, Daejeon, 34054, Republic of Korea
| | - Myung-Sunny Kim
- Division of Metabolism and Nutrition, Korea Food Research Institute, Gyeonggi-do 13539, Republic of Korea; Department of Food Biotechnology, Korea University of Science & Technology, Gyeonggi-do 13539, Republic of Korea.
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Lubecka K, Kurzava L, Flower K, Buvala H, Zhang H, Teegarden D, Camarillo I, Suderman M, Kuang S, Andrisani O, Flanagan JM, Stefanska B. Stilbenoids remodel the DNA methylation patterns in breast cancer cells and inhibit oncogenic NOTCH signaling through epigenetic regulation of MAML2 transcriptional activity. Carcinogenesis 2016; 37:656-68. [PMID: 27207652 PMCID: PMC4936385 DOI: 10.1093/carcin/bgw048] [Citation(s) in RCA: 71] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2015] [Revised: 03/20/2016] [Accepted: 04/15/2016] [Indexed: 12/30/2022] Open
Abstract
DNA hypomethylation was previously implicated in cancer progression and metastasis. The purpose of this study was to examine whether stilbenoids, resveratrol and pterostilbene thought to exert anticancer effects, target genes with oncogenic function for de novo methylation and silencing, leading to inactivation of related signaling pathways. Following Illumina 450K, genome-wide DNA methylation analysis reveals that stilbenoids alter DNA methylation patterns in breast cancer cells. On average, 75% of differentially methylated genes have increased methylation, and these genes are enriched for oncogenic functions, including NOTCH signaling pathway. MAML2, a coactivator of NOTCH targets, is methylated at the enhancer region and transcriptionally silenced in response to stilbenoids, possibly explaining the downregulation of NOTCH target genes. The increased DNA methylation at MAML2 enhancer coincides with increased occupancy of repressive histone marks and decrease in activating marks. This condensed chromatin structure is associated with binding of DNMT3B and decreased occupancy of OCT1 transcription factor at MAML2 enhancer, suggesting a role of DNMT3B in increasing methylation of MAML2 after stilbenoid treatment. Our results deliver a novel insight into epigenetic regulation of oncogenic signals in cancer and provide support for epigenetic-targeting strategies as an effective anticancer approach.
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Affiliation(s)
- Katarzyna Lubecka
- Department of Nutrition Science, Purdue University, West Lafayette, IN, USA
| | - Lucinda Kurzava
- Department of Nutrition Science, Purdue University, West Lafayette, IN, USA
| | - Kirsty Flower
- Epigenetic Unit, Department of Surgery and Cancer, Imperial College London, London, UK
| | - Hannah Buvala
- Department of Nutrition Science, Purdue University, West Lafayette, IN, USA
| | - Hao Zhang
- Department of Basic Medical Sciences, Purdue University, West Lafayette, IN, USA
| | - Dorothy Teegarden
- Department of Nutrition Science, Purdue University, West Lafayette, IN, USA Purdue University Center for Cancer Research, West Lafayette, IN, USA
| | - Ignacio Camarillo
- Purdue University Center for Cancer Research, West Lafayette, IN, USA Department of Biological Sciences, Purdue University, West Lafayette, IN, USA
| | - Matthew Suderman
- School of Social and Community Medicine, University of Bristol, Bristol, UK MRC Integrative Epidemiology Unit, University of Bristol, Bristol, UK
| | - Shihuan Kuang
- Purdue University Center for Cancer Research, West Lafayette, IN, USA Department of Animal Sciences, Purdue University, West Lafayette, IN, USA
| | - Ourania Andrisani
- Department of Basic Medical Sciences, Purdue University, West Lafayette, IN, USA Purdue University Center for Cancer Research, West Lafayette, IN, USA
| | - James M Flanagan
- Epigenetic Unit, Department of Surgery and Cancer, Imperial College London, London, UK
| | - Barbara Stefanska
- Department of Nutrition Science, Purdue University, West Lafayette, IN, USA Purdue University Center for Cancer Research, West Lafayette, IN, USA
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Rupasinghe HPV, Sekhon-Loodu S, Mantso T, Panayiotidis MI. Phytochemicals in regulating fatty acid β-oxidation: Potential underlying mechanisms and their involvement in obesity and weight loss. Pharmacol Ther 2016; 165:153-63. [PMID: 27288729 DOI: 10.1016/j.pharmthera.2016.06.005] [Citation(s) in RCA: 94] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2016] [Accepted: 05/16/2016] [Indexed: 12/12/2022]
Abstract
Excessive accumulation of fat as the result of more energy intake and less energy expenditure is known as obesity. Lipids are essential components in the human body and are vital for maintaining homeostasis and physiological as well as cellular metabolism. Fatty acid synthesis and catabolism (by fatty acid oxidation) are normal part of basic fuel metabolism in animals. Fatty acids are degraded in the mitochondria by a biochemical process called β-oxidation in which two-carbon fragments are produced in each cycle. The increase in fatty acid β-oxidation is negatively correlated with body mass index. Although healthy life style, avoiding Western diet, dieting and strenuous exercise are the commonly used methods to lose weight, they are not considered a permanent solution in addition to risk attenuation of basal metabolic rate (BMR). Pharmacotherapy offers benefits of weight loss by altering the satiety and lowering absorption of fat from the food; however, its side effects may outweigh the benefits of weight loss. Alternatively, dietary phytochemicals and natural health products offer great potential as an efficient weight loss strategy by modulating lipid metabolism and/or increasing BMR and thermogenesis. Specifically, polyphenols such as citrus flavonoids, green tea epigallocatechin gallate, resveratrol, capsaicin and curcumin, have been reported to increase lipolysis and induce fatty acid β-oxidation through modulation of hormone sensitive lipase, acetyl-coA carboxylase, carnitine acyl transferase and peroxisome proliferator-activated receptor gamma coactivator-1. In this review article, we discuss selected phytochemicals in relation to their integrated functionalities and specific mechanisms for weight loss.
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Affiliation(s)
- H P Vasantha Rupasinghe
- Department of Environmental Sciences, Faculty of Agriculture, Dalhousie University, P.O. Box 550, Truro, Nova Scotia, B2N 5E3, Canada; Department of Pathology, Faculty of Medicine, Dalhousie University, Halifax, Nova Scotia, B3H 4R2, Canada.
| | - Satvir Sekhon-Loodu
- Department of Environmental Sciences, Faculty of Agriculture, Dalhousie University, P.O. Box 550, Truro, Nova Scotia, B2N 5E3, Canada
| | - Theodora Mantso
- Heriot-Watt University, School of Life Sciences, John Muir Building, Riccarton Campus, Edinburgh EH14 4AS, Scotland, UK
| | - Mihalis I Panayiotidis
- Heriot-Watt University, School of Life Sciences, John Muir Building, Riccarton Campus, Edinburgh EH14 4AS, Scotland, UK
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Kala R, Tollefsbol TO. A Novel Combinatorial Epigenetic Therapy Using Resveratrol and Pterostilbene for Restoring Estrogen Receptor-α (ERα) Expression in ERα-Negative Breast Cancer Cells. PLoS One 2016; 11:e0155057. [PMID: 27159275 DOI: 10.1371/journal.pone.0155057] [Citation(s) in RCA: 56] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2016] [Accepted: 04/24/2016] [Indexed: 11/23/2022] Open
Abstract
Breast cancer is the second most common cancer and a leading cause of cancer death in women. Specifically, estrogen receptor-α (ERα)-negative breast cancers are clinically more aggressive and normally do not respond to conventional hormone-directed therapies such as tamoxifen. Although epigenetic-based therapies such as 5-aza-2’-deoxycytidine and/or trichostatin A as DNA methyltransferase (DNMT) and histone deacetylase (HDAC) inhibitors, respectively, can regulate the expression of ERα, this can often lead to a number of side effects. Plant-based dietary compounds such as resveratrol and pterostilbene in novel combinatorial therapy provides new avenues to target these side effects and provide similar results with a higher level of safety. Here, we report that combinatorial resveratrol and pterostilbene leads to the reactivation of ERα expression in ERα-negative breast cancer cells in a time-dependent manner. Chromatin immunoprecipitation analysis of the ERα promoter in each cell type revealed an increase in enrichment of acetyl-H3, acetyl-H3lysine9 (H3K9) and acetyl-H4 active chromatin markers in the ERα promoter region after combinatorial treatment. This treatment also resulted in a significant change in HDAC and histone acetyl transferase (HAT) enzyme activity in these cells after 3 days of treatments. The combination resulted in a significant decrease in DNMT enzyme activity and 5-methylcytosine levels in MDA-MB-157 breast cancer cells. Moreover, reactivation of ERα expression by resveratrol combined with pterostilbene was found to sensitize ERα-dependent response to 17β-estradiol (E2)-mediated cellular proliferation and antagonist 4-hydroxytamoxifen (4-OHT)-mediated inhibition of cellular proliferation in ERα-negative breast cancer cells. E2 and 4-OHT further affected the ERα-responsive downstream progesterone receptor (PGR) gene in ERα reactivated MDA-MB-157 cells. Collectively, our findings provide a new and safer way of restoring ERα expression by regulating epigenetic mechanisms with the use of phytochemicals in combinatorial therapy. This combination can further provide effective treatment options for hormonal refractory breast cancer with available anti-hormonal therapy.
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Parrillo L, Costa V, Raciti GA, Longo M, Spinelli R, Esposito R, Nigro C, Vastolo V, Desiderio A, Zatterale F, Ciccodicola A, Formisano P, Miele C, Beguinot F. Hoxa5 undergoes dynamic DNA methylation and transcriptional repression in the adipose tissue of mice exposed to high-fat diet. Int J Obes (Lond) 2016; 40:929-37. [PMID: 26980478 DOI: 10.1038/ijo.2016.36] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/27/2015] [Revised: 12/28/2015] [Accepted: 01/24/2016] [Indexed: 12/19/2022]
Abstract
BACKGROUND/OBJECTIVES The genomic bases of the adipose tissue abnormalities induced by chronic positive calorie excess have been only partially elucidated. We adopted a genome-wide approach to directly test whether long-term high-fat diet (HFD) exposure affects the DNA methylation profile of the mouse adipose tissue and to identify the functional consequences of these changes. SUBJECTS/METHODS We have used epididymal fat of mice fed either high-fat (HFD) or regular chow (STD) diet for 5 months and performed genome-wide DNA methylation analyses by methylated DNA immunoprecipitation sequencing (MeDIP-seq). Mouse Homeobox (Hox) Gene DNA Methylation PCR, RT-qPCR and bisulphite sequencing analyses were then performed. RESULTS Mice fed the HFD progressively expanded their adipose mass accompanied by a significant decrease in glucose tolerance (P<0.001) and insulin sensitivity (P<0.05). MeDIP-seq data analysis revealed a uniform distribution of differentially methylated regions (DMR) through the entire adipocyte genome, with a higher number of hypermethylated regions in HFD mice (P<0.005). This different methylation profile was accompanied by increased expression of the Dnmt3a DNA methyltransferase (Dnmt; P<0.05) and the methyl-CpG-binding domain protein Mbd3 (P<0.05) genes in HFD mice. Gene ontology analysis revealed that, in the HFD-treated mice, the Hox family of development genes was highly enriched in differentially methylated genes (P=0.008). To validate this finding, Hoxa5, which is implicated in fat tissue differentiation and remodeling, has been selected and analyzed by bisulphite sequencing, confirming hypermethylation in the adipose tissue from the HFD mice. Hoxa5 hypermethylation was associated with downregulation of Hoxa5 mRNA and protein expression. Feeding animals previously exposed to the HFD with a standard chow diet for two further months improved the metabolic phenotype of the animals, accompanied by return of Hoxa5 methylation and expression levels (P<0.05) to values similar to those of the control mice maintained under standard chow. CONCLUSIONS HFD induces adipose tissue abnormalities accompanied by epigenetic changes at the Hoxa5 adipose tissue remodeling gene.
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Arguelles AO, Meruvu S, Bowman JD, Choudhury M. Are epigenetic drugs for diabetes and obesity at our door step? Drug Discov Today 2016; 21:499-509. [DOI: 10.1016/j.drudis.2015.12.001] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2015] [Revised: 11/18/2015] [Accepted: 12/02/2015] [Indexed: 01/04/2023]
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Rodríguez-Rodríguez C, Torres N, Gutiérrez-Uribe JA, Noriega LG, Torre-Villalvazo I, Leal-Díaz AM, Antunes-Ricardo M, Márquez-Mota C, Ordaz G, Chavez-Santoscoy RA, Serna-Saldivar SO, Tovar AR. The effect of isorhamnetin glycosides extracted from Opuntia ficus-indica in a mouse model of diet induced obesity. Food Funct 2016; 6:805-15. [PMID: 25588195 DOI: 10.1039/c4fo01092b] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
A diet rich in polyphenols can ameliorate some metabolic alterations associated with obesity and type 2 diabetes. Opuntia ficus-indica (OFI) is a plant rich in isorhamnetin glycosides and is highly consumed in Mexico. The purpose of this research was to determine the metabolic effect of an OFI extract on a mouse model of diet-induced obesity and in isolated pancreatic islets. OFI extract was added to a high fat (HF) diet at a low (0.3%) or high (0.6%) dose and administered to C57BL/6 mice for 12 weeks. Mice fed the HF diet supplemented with the OFI extract gained less body weight and exhibited significantly lower circulating total cholesterol, LDL cholesterol and HDL cholesterol compared to those fed the HF diet alone. The HF-OFI diet fed mice presented lower glucose and insulin concentration than the HF diet fed mice. However, the HF-OFI diet fed mice tended to have higher insulin concentration than control mice. The OFI extract stimulated insulin secretion in vitro, associated with increased glucose transporter 2 (GLUT2) and peroxisome proliferator-activated receptor gamma (PPARγ) mRNA content. Furthermore, the OFI extract improved glucose tolerance, and additionally increased energy expenditure. These metabolic improvements were associated with reduced adipocyte size, increased hepatic IRS1 tyr-608 and S6 K thr-389 phosphorylation. OFI isorhamnetin glycosides also diminished the hepatic lipid content associated with reduced mRNA expression of the endoplasmic reticulum stress markers and lipogenic enzymes and increased mRNA expression of genes related to fatty acid oxidation. Overall, the OFI extract prevented the development of metabolic abnormalities associated with diet-induced obesity.
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Affiliation(s)
- César Rodríguez-Rodríguez
- Centro de Biotecnología-FEMSA, Tecnológico de Monterrey, Av. Eugenio Garza Sada 2501 Sur, C.P. 64849 Monterrey, NL, México
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Chaplin A, Palou A, Serra F. Methylation analysis in fatty-acid-related genes reveals their plasticity associated with conjugated linoleic acid and calcium supplementation in adult mice. Eur J Nutr 2015; 56:879-891. [PMID: 26700221 DOI: 10.1007/s00394-015-1135-3] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2015] [Accepted: 12/11/2015] [Indexed: 01/01/2023]
Abstract
PURPOSE DNA methylation is one of the most extensively studied mechanisms within epigenetics, and it is suggested that diet-induced changes in methylation status could be involved in energy metabolism regulation. Conjugated linoleic acid (CLA) and calcium supplementation counteract body weight gain, particularly under a high-fat (HF) diet, in adult mice. The aim was to determine whether the modulation of DNA methylation pattern in target genes and tissues could be an underlying mechanism of action. METHODS Mice (C57BL/6J) were divided into five groups according to diet and treatment: normal fat as the control group (12 % kJ content as fat), HF group (43 % kJ content as fat), HF + CLA (6 mg CLA/day), HF + calcium (12 g/kg of calcium) and HF with both compounds. Gene expression and methylation degree of CpG sites in promoter sequences of genes involved in fatty acid metabolism, including adiponectin (Adipoq), stearoyl-CoA desaturase (Scd1) and fatty acid synthase (Fasn), were determined by bisulphite sequencing in liver and epididymal white adipose tissue. RESULTS Results showed that the methylation profile of promoters was significantly altered by dietary supplementation in a gene- and tissue-specific manner, whereas only slight changes were observed in the HF group. Furthermore, changes in specific CpG sites were also associated with an overall healthier metabolic profile, in particular for calcium-receiving groups. CONCLUSIONS Both CLA and calcium were able to modify the methylation pattern of genes involved in energy balance in adulthood, which opens a novel area for increasing efficiency in body weight management strategies.
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Affiliation(s)
- Alice Chaplin
- Laboratory of Molecular Biology, Nutrition and Biotechnology, University of the Balearic Islands and CIBER de Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Palma de Mallorca, Spain
| | - Andreu Palou
- Laboratory of Molecular Biology, Nutrition and Biotechnology, University of the Balearic Islands and CIBER de Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Palma de Mallorca, Spain.
| | - Francisca Serra
- Laboratory of Molecular Biology, Nutrition and Biotechnology, University of the Balearic Islands and CIBER de Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Palma de Mallorca, Spain
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Xue J, Ideraabdullah FY. An assessment of molecular pathways of obesity susceptible to nutrient, toxicant and genetically induced epigenetic perturbation. J Nutr Biochem 2015; 30:1-13. [PMID: 27012616 DOI: 10.1016/j.jnutbio.2015.09.002] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2015] [Revised: 08/20/2015] [Accepted: 09/09/2015] [Indexed: 12/12/2022]
Abstract
In recent years, the etiology of human disease has greatly improved with the inclusion of epigenetic mechanisms, in particular as a common link between environment and disease. However, for most diseases we lack a detailed interpretation of the epigenetic regulatory pathways perturbed by environment and causal mechanisms. Here, we focus on recent findings elucidating nutrient-related epigenetic changes linked to obesity. We highlight studies demonstrating that obesity is a complex disease linked to disruption of epigenetically regulated metabolic pathways in the brain, adipose tissue and liver. These pathways regulate (1) homeostatic and hedonic eating behaviors, (2) adipocyte differentiation and fat accumulation, and (3) energy expenditure. By compiling these data, we illustrate that obesity-related phenotypes are repeatedly linked to disruption of critical epigenetic mechanisms that regulate key metabolic genes. These data are supported by genetic mutation of key epigenetic regulators, and many of the diet-induced epigenetic mechanisms of obesity are also perturbed by exposure to environmental toxicants. Identifying similarly perturbed epigenetic mechanisms in multiple experimental models of obesity strengthens the translational applications of these findings. We also discuss many of the ongoing challenges to understanding the role of environmentally induced epigenetic pathways in obesity and suggest future studies to elucidate these roles. This assessment illustrates our current understanding of molecular pathways of obesity that are susceptible to environmental perturbation via epigenetic mechanisms. Thus, it lays the groundwork for dissecting the complex interactions between diet, genes and toxicants that contribute to obesity and obesity-related phenotypes.
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Affiliation(s)
- Jing Xue
- Nutrition Research Institute, University of North Carolina at Chapel Hill, 500 Laureate Way, Kannapolis, NC 28081, USA
| | - Folami Y Ideraabdullah
- Nutrition Research Institute, University of North Carolina at Chapel Hill, 500 Laureate Way, Kannapolis, NC 28081, USA; Department of Genetics, School of Medicine, University of North Carolina at Chapel Hill, 120 Mason Farm Rd, Chapel Hill, NC 27599, United States; Department of Nutrition, 120 Mason Farm Rd, Chapel Hill, NC 27599, United States.
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Kala R, Shah HN, Martin SL, Tollefsbol TO. Epigenetic-based combinatorial resveratrol and pterostilbene alters DNA damage response by affecting SIRT1 and DNMT enzyme expression, including SIRT1-dependent γ-H2AX and telomerase regulation in triple-negative breast cancer. BMC Cancer 2015; 15:672. [PMID: 26459286 PMCID: PMC4603342 DOI: 10.1186/s12885-015-1693-z] [Citation(s) in RCA: 106] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2015] [Accepted: 10/07/2015] [Indexed: 12/12/2022] Open
Abstract
Background Nutrition is believed to be a primary contributor in regulating gene expression by affecting epigenetic pathways such as DNA methylation and histone modification. Resveratrol and pterostilbene are phytoalexins produced by plants as part of their defense system. These two bioactive compounds when used alone have been shown to alter genetic and epigenetic profiles of tumor cells, but the concentrations employed in various studies often far exceed physiologically achievable doses. Triple-negative breast cancer (TNBC) is an often fatal condition that may be prevented or treated through novel dietary-based approaches. Methods HCC1806 and MDA-MB-157 breast cancer cells were used as TNBC cell lines in this study. MCF10A cells were used as control breast epithelial cells to determine the safety of this dietary regimen. CompuSyn software was used to determine the combination index (CI) for drug combinations. Results Combinatorial resveratrol and pterostilbene administered at close to physiologically relevant doses resulted in synergistic (CI <1) growth inhibition of TNBCs. SIRT1, a type III histone deacetylase (HDAC), was down-regulated in response to this combinatorial treatment. We further explored the effects of this novel combinatorial approach on DNA damage response by monitoring γ-H2AX and telomerase expression. With combination of these two compounds there was a significant decrease in these two proteins which might further resulted in significant growth inhibition, apoptosis and cell cycle arrest in HCC1806 and MDA-MB-157 breast cancer cells, while there was no significant effect on cellular viability, colony forming potential, morphology or apoptosis in control MCF10A breast epithelial cells. SIRT1 knockdown reproduced the effects of combinatorial resveratrol and pterostilbene-induced SIRT1 down-regulation through inhibition of both telomerase activity and γ-H2AX expression in HCC1806 breast cancer cells. As a part of the repair mechanisms and role of SIRT1 in recruiting DNMTs, the effects of this combination treatment was also explored on DNA methyltransferases (DNMTs) expression. Interestingly, the compounds resulted in a significant down-regulation of DNMT enzymes with no significant effects on DNMT enzyme expression in MCF10A control cells. Conclusion Collectively, these results provide new insights into the epigenetic mechanisms of a novel combinatorial nutrient control strategy that exhibits synergy and may contribute to future recalcitrant TNBC prevention and/or therapy. Electronic supplementary material The online version of this article (doi:10.1186/s12885-015-1693-z) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Rishabh Kala
- Department of Biology, University of Alabama at Birmingham, 1300 University Boulevard, Birmingham, AL, 35294, USA.
| | - Harsh N Shah
- Department of Biology, University of Alabama at Birmingham, 1300 University Boulevard, Birmingham, AL, 35294, USA.
| | - Samantha L Martin
- Department of Biology, University of Alabama at Birmingham, 1300 University Boulevard, Birmingham, AL, 35294, USA.
| | - Trygve O Tollefsbol
- Department of Biology, University of Alabama at Birmingham, 1300 University Boulevard, Birmingham, AL, 35294, USA. .,Comprehensive Center for Healthy Aging, University of Alabama at Birmingham, 1530 3rd Avenue South, Birmingham, AL, 35294, USA. .,Comprehensive Cancer Center, University of Alabama at Birmingham, 1802 6th Avenue South, Birmingham, AL, 35294, USA. .,Nutrition Obesity Research Center, University of Alabama at Birmingham, 1675 University Boulevard, Birmingham, AL 35294, USA. .,Comprehensive Diabetes Center, University of Alabama at Birmingham, 1825 University Boulevard, Birmingham, AL, 35294, USA.
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