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Manickasamy MK, Jayaprakash S, Girisa S, Kumar A, Lam HY, Okina E, Eng H, Alqahtani MS, Abbas M, Sethi G, Kumar AP, Kunnumakkara AB. Delineating the role of nuclear receptors in colorectal cancer, a focused review. Discov Oncol 2024; 15:41. [PMID: 38372868 PMCID: PMC10876515 DOI: 10.1007/s12672-023-00808-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/06/2023] [Accepted: 10/20/2023] [Indexed: 02/20/2024] Open
Abstract
Colorectal cancer (CRC) stands as one of the most prevalent form of cancer globally, causing a significant number of deaths, surpassing 0.9 million in the year 2020. According to GLOBOCAN 2020, CRC ranks third in incidence and second in mortality in both males and females. Despite extensive studies over the years, there is still a need to establish novel therapeutic targets to enhance the patients' survival rate in CRC. Nuclear receptors (NRs) are ligand-activated transcription factors (TFs) that regulate numerous essential biological processes such as differentiation, development, physiology, reproduction, and cellular metabolism. Dysregulation and anomalous expression of different NRs has led to multiple alterations, such as impaired signaling cascades, mutations, and epigenetic changes, leading to various diseases, including cancer. It has been observed that differential expression of various NRs might lead to the initiation and progression of CRC, and are correlated with poor survival outcomes in CRC patients. Despite numerous studies on the mechanism and role of NRs in this cancer, it remains of significant scientific interest primarily due to the diverse functions that various NRs exhibit in regulating key hallmarks of this cancer. Thus, modulating the expression of NRs with their agonists and antagonists, based on their expression levels, holds an immense prospect in the diagnosis, prognosis, and therapeutical modalities of CRC. In this review, we primarily focus on the role and mechanism of NRs in the pathogenesis of CRC and emphasized the significance of targeting these NRs using a variety of agents, which may represent a novel and effective strategy for the prevention and treatment of this cancer.
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Affiliation(s)
- Mukesh Kumar Manickasamy
- Cancer Biology Laboratory, Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati (IITG), Guwahati, 781039, Assam, India
| | - Sujitha Jayaprakash
- Cancer Biology Laboratory, Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati (IITG), Guwahati, 781039, Assam, India
| | - Sosmitha Girisa
- Cancer Biology Laboratory, Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati (IITG), Guwahati, 781039, Assam, India
| | - Aviral Kumar
- Cancer Biology Laboratory, Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati (IITG), Guwahati, 781039, Assam, India
| | - Hiu Yan Lam
- Department of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore, Queenstown, 117600, Singapore
- NUS Center for Cancer Research, Yong Loo Lin School of Medicine, National University of Singapore, Queenstown, 117699, Singapore
| | - Elena Okina
- Department of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore, Queenstown, 117600, Singapore
- NUS Center for Cancer Research, Yong Loo Lin School of Medicine, National University of Singapore, Queenstown, 117699, Singapore
| | - Huiyan Eng
- Department of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore, Queenstown, 117600, Singapore
- NUS Center for Cancer Research, Yong Loo Lin School of Medicine, National University of Singapore, Queenstown, 117699, Singapore
| | - Mohammed S Alqahtani
- Radiological Sciences Department, College of Applied Medical Sciences, King Khalid University, 61421, Abha, Saudi Arabia
- BioImaging Unit, Space Research Centre, Michael Atiyah Building, University of Leicester, Leicester, LE1 7RH, UK
| | - Mohamed Abbas
- Electrical Engineering Department, College of Engineering, King Khalid University, 61421, Abha, Saudi Arabia
| | - Gautam Sethi
- Department of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore, Queenstown, 117600, Singapore
- NUS Center for Cancer Research, Yong Loo Lin School of Medicine, National University of Singapore, Queenstown, 117699, Singapore
| | - Alan Prem Kumar
- Department of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore, Queenstown, 117600, Singapore.
- NUS Center for Cancer Research, Yong Loo Lin School of Medicine, National University of Singapore, Queenstown, 117699, Singapore.
| | - Ajaikumar B Kunnumakkara
- Cancer Biology Laboratory, Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati (IITG), Guwahati, 781039, Assam, India.
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Talib WH, Ahmed Jum’AH DA, Attallah ZS, Jallad MS, Al Kury LT, Hadi RW, Mahmod AI. Role of vitamins A, C, D, E in cancer prevention and therapy: therapeutic potentials and mechanisms of action. Front Nutr 2024; 10:1281879. [PMID: 38274206 PMCID: PMC10808607 DOI: 10.3389/fnut.2023.1281879] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2023] [Accepted: 11/09/2023] [Indexed: 01/27/2024] Open
Abstract
Cancer, a leading global cause of mortality, arises from intricate interactions between genetic and environmental factors, fueling uncontrolled cell growth. Amidst existing treatment limitations, vitamins have emerged as promising candidates for cancer prevention and treatment. This review focuses on Vitamins A, C, E, and D because of their protective activity against various types of cancer. They are essential as human metabolic coenzymes. Through a critical exploration of preclinical and clinical studies via PubMed and Google Scholar, the impact of these vitamins on cancer therapy was analyzed, unraveling their complicated mechanisms of action. Interestingly, vitamins impact immune function, antioxidant defense, inflammation, and epigenetic regulation, potentially enhancing outcomes by influencing cell behavior and countering stress and DNA damage. Encouraging clinical trial results have been observed; however, further well-controlled studies are imperative to validate their effectiveness, determine optimal dosages, and formulate comprehensive cancer prevention and treatment strategies. Personalized supplementation strategies, informed by medical expertise, are pivotal for optimal outcomes in both clinical and preclinical contexts. Nevertheless, conclusive evidence regarding the efficacy of vitamins in cancer prevention and treatment is still pending, urging further research and exploration in this compelling area of study.
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Affiliation(s)
- Wamidh H. Talib
- Faculty of Allied Medical Sciences, Applied Science Private University, Amman, Jordan
| | | | - Zeena Shamil Attallah
- Department of Clinical Pharmacy and Therapeutics, Applied Science Private University, Amman, Jordan
| | - Mohanned Sami Jallad
- Department of Clinical Pharmacy and Therapeutics, Applied Science Private University, Amman, Jordan
| | - Lina T. Al Kury
- Department of Health Sciences, College of Natural and Health Sciences, Zayed University, Abu Dhabi, United Arab Emirates
| | - Rawan Wamidh Hadi
- Faculty of Allied Medical Sciences, Applied Science Private University, Amman, Jordan
| | - Asma Ismail Mahmod
- Department of Clinical Pharmacy and Therapeutics, Applied Science Private University, Amman, Jordan
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3
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Hegde M, Girisa S, Naliyadhara N, Kumar A, Alqahtani MS, Abbas M, Mohan CD, Warrier S, Hui KM, Rangappa KS, Sethi G, Kunnumakkara AB. Natural compounds targeting nuclear receptors for effective cancer therapy. Cancer Metastasis Rev 2023; 42:765-822. [PMID: 36482154 DOI: 10.1007/s10555-022-10068-w] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/18/2022] [Accepted: 11/03/2022] [Indexed: 12/13/2022]
Abstract
Human nuclear receptors (NRs) are a family of forty-eight transcription factors that modulate gene expression both spatially and temporally. Numerous biochemical, physiological, and pathological processes including cell survival, proliferation, differentiation, metabolism, immune modulation, development, reproduction, and aging are extensively orchestrated by different NRs. The involvement of dysregulated NRs and NR-mediated signaling pathways in driving cancer cell hallmarks has been thoroughly investigated. Targeting NRs has been one of the major focuses of drug development strategies for cancer interventions. Interestingly, rapid progress in molecular biology and drug screening reveals that the naturally occurring compounds are promising modern oncology drugs which are free of potentially inevitable repercussions that are associated with synthetic compounds. Therefore, the purpose of this review is to draw our attention to the potential therapeutic effects of various classes of natural compounds that target NRs such as phytochemicals, dietary components, venom constituents, royal jelly-derived compounds, and microbial derivatives in the establishment of novel and safe medications for cancer treatment. This review also emphasizes molecular mechanisms and signaling pathways that are leveraged to promote the anti-cancer effects of these natural compounds. We have also critically reviewed and assessed the advantages and limitations of current preclinical and clinical studies on this subject for cancer prophylaxis. This might subsequently pave the way for new paradigms in the discovery of drugs that target specific cancer types.
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Affiliation(s)
- Mangala Hegde
- Cancer Biology Laboratory, Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati, 781039, Assam, India
| | - Sosmitha Girisa
- Cancer Biology Laboratory, Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati, 781039, Assam, India
| | - Nikunj Naliyadhara
- Cancer Biology Laboratory, Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati, 781039, Assam, India
| | - Aviral Kumar
- Cancer Biology Laboratory, Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati, 781039, Assam, India
| | - Mohammed S Alqahtani
- Radiological Sciences Department, College of Applied Medical Sciences, King Khalid University, Abha, 61421, Saudi Arabia
- BioImaging Unit, Space Research Centre, University of Leicester, Michael Atiyah Building, Leicester, LE1 7RH, UK
| | - Mohamed Abbas
- Electrical Engineering Department, College of Engineering, King Khalid University, Abha, 61421, Saudi Arabia
- Electronics and Communications Department, College of Engineering, Delta University for Science and Technology, 35712, Gamasa, Egypt
| | | | - Sudha Warrier
- Division of Cancer Stem Cells and Cardiovascular Regeneration, School of Regenerative Medicine, Manipal Academy of Higher Education (MAHE), Bangalore, 560065, India
- Cuor Stem Cellutions Pvt Ltd, Manipal Institute of Regenerative Medicine, Manipal Academy of Higher Education (MAHE), Bangalore, 560065, India
| | - Kam Man Hui
- Division of Cellular and Molecular Research, Humphrey Oei Institute of Cancer Research, National Cancer Centre, Singapore, 169610, Singapore
| | | | - Gautam Sethi
- Department of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, 117600, Singapore.
| | - Ajaikumar B Kunnumakkara
- Cancer Biology Laboratory, Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati, 781039, Assam, India.
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Li Y, Drabison T, Nepal M, Ho RH, Leblanc AF, Gibson AA, Jin Y, Yang W, Huang KM, Uddin ME, Chen M, DiGiacomo DF, Chen X, Razzaq S, Tonniges JR, McTigue DM, Mims AS, Lustberg MB, Wang Y, Hummon AB, Evans WE, Baker SD, Cavaletti G, Sparreboom A, Hu S. Targeting a xenobiotic transporter to ameliorate vincristine-induced sensory neuropathy. JCI Insight 2023; 8:e164646. [PMID: 37347545 PMCID: PMC10443802 DOI: 10.1172/jci.insight.164646] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2022] [Accepted: 06/15/2023] [Indexed: 06/24/2023] Open
Abstract
Vincristine is a widely used chemotherapeutic drug for the treatment of multiple malignant diseases that causes a dose-limiting peripheral neurotoxicity. There is no clinically effective preventative treatment for vincristine-induced sensory peripheral neurotoxicity (VIPN), and mechanistic details of this side effect remain poorly understood. We hypothesized that VIPN is dependent on transporter-mediated vincristine accumulation in dorsal root ganglion neurons. Using a xenobiotic transporter screen, we identified OATP1B3 as a neuronal transporter regulating the uptake of vincristine. In addition, genetic or pharmacological inhibition of the murine orthologue transporter OATP1B2 protected mice from various hallmarks of VIPN - including mechanical allodynia, thermal hyperalgesia, and changes in digital maximal action potential amplitudes and neuronal morphology - without negatively affecting plasma levels or antitumor effects of vincristine. Finally, we identified α-tocopherol from an untargeted metabolomics analysis as a circulating endogenous biomarker of neuronal OATP1B2 function, and it could serve as a companion diagnostic to guide dose selection of OATP1B-type transport modulators given in combination with vincristine to prevent VIPN. Collectively, our findings shed light on the fundamental basis of VIPN and provide a rationale for the clinical development of transporter inhibitors to prevent this debilitating side effect.
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Affiliation(s)
- Yang Li
- Division of Pharmaceutics and Pharmacology, College of Pharmacy & Comprehensive Cancer Center, and
- Division of Outcomes and Translational Sciences, College of Pharmacy & Comprehensive Cancer Center, The Ohio State University, Columbus, Ohio, USA
| | - Thomas Drabison
- Division of Pharmaceutics and Pharmacology, College of Pharmacy & Comprehensive Cancer Center, and
| | - Mahesh Nepal
- Division of Pharmaceutics and Pharmacology, College of Pharmacy & Comprehensive Cancer Center, and
- Division of Outcomes and Translational Sciences, College of Pharmacy & Comprehensive Cancer Center, The Ohio State University, Columbus, Ohio, USA
| | - Richard H. Ho
- Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - Alix F. Leblanc
- Division of Pharmaceutics and Pharmacology, College of Pharmacy & Comprehensive Cancer Center, and
| | - Alice A. Gibson
- Division of Pharmaceutics and Pharmacology, College of Pharmacy & Comprehensive Cancer Center, and
| | - Yan Jin
- Division of Pharmaceutics and Pharmacology, College of Pharmacy & Comprehensive Cancer Center, and
| | - Wenjian Yang
- Department of Pharmaceutical Sciences, St. Jude Children’s Research Hospital, Memphis, Tennessee, USA
| | - Kevin M. Huang
- Division of Pharmaceutics and Pharmacology, College of Pharmacy & Comprehensive Cancer Center, and
| | - Muhammad Erfan Uddin
- Division of Pharmaceutics and Pharmacology, College of Pharmacy & Comprehensive Cancer Center, and
| | - Mingqing Chen
- Division of Pharmaceutics and Pharmacology, College of Pharmacy & Comprehensive Cancer Center, and
| | - Duncan F. DiGiacomo
- Division of Pharmaceutics and Pharmacology, College of Pharmacy & Comprehensive Cancer Center, and
| | - Xihui Chen
- Division of Pharmaceutics and Pharmacology, College of Pharmacy & Comprehensive Cancer Center, and
| | - Sobia Razzaq
- Division of Pharmaceutics and Pharmacology, College of Pharmacy & Comprehensive Cancer Center, and
| | | | - Dana M. McTigue
- The Belford Center for Spinal Cord Injury & Department of Neuroscience, College of Medicine, and
| | - Alice S. Mims
- Division of Hematology, Department of Internal Medicine, The Ohio State University, Columbus, Ohio, USA
| | - Maryam B. Lustberg
- The Breast Center at Smilow Cancer Hospital at Yale, New Haven, Connecticut, USA
| | - Yijia Wang
- Department of Chemistry and Biochemistry & Comprehensive Cancer Center, The Ohio State University, Columbus, Ohio, USA
| | - Amanda B. Hummon
- Department of Chemistry and Biochemistry & Comprehensive Cancer Center, The Ohio State University, Columbus, Ohio, USA
| | - William E. Evans
- Department of Pharmaceutical Sciences, St. Jude Children’s Research Hospital, Memphis, Tennessee, USA
| | - Sharyn D. Baker
- Division of Pharmaceutics and Pharmacology, College of Pharmacy & Comprehensive Cancer Center, and
| | - Guido Cavaletti
- Experimental Neurology Unit and Milan Center for Neuroscience, School of Medicine and Surgery, University of Milano-Bicocca, Monza, Italy
| | - Alex Sparreboom
- Division of Pharmaceutics and Pharmacology, College of Pharmacy & Comprehensive Cancer Center, and
| | - Shuiying Hu
- Division of Pharmaceutics and Pharmacology, College of Pharmacy & Comprehensive Cancer Center, and
- Division of Outcomes and Translational Sciences, College of Pharmacy & Comprehensive Cancer Center, The Ohio State University, Columbus, Ohio, USA
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Raman Spectroscopy and Imaging Studies of Human Digestive Tract Cells and Tissues-Impact of Vitamin C and E Supplementation. Molecules 2022; 28:molecules28010137. [PMID: 36615330 PMCID: PMC9822473 DOI: 10.3390/molecules28010137] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2022] [Revised: 11/17/2022] [Accepted: 12/04/2022] [Indexed: 12/28/2022] Open
Abstract
Cancers of digestive tract such as colorectal cancer (CRC) and gastric cancer (GC) are the most commonly detected types of cancer worldwide and their origin can be associated with oxidative stress conditions. Commonly known and followed antioxidants, such as vitamin C and E, are widely considered as potential anti-cancer agents. Raman spectra have great potential in the biochemical characterization of matter based on the fact that each molecule has its own unique vibrational properties. Raman spectroscopy allows to precisely characterize components (proteins, lipids, nucleic acids). The paper presents the application of the Raman spectroscopy technique for the analysis of tissue samples and cells of the human colon and stomach. The main goal of this study is to show the differences between healthy and cancerous tissues from the human digestive tract and human normal and cancer colon and gastric cell lines. The paper presents the spectroscopic characterization of normal colon cells, CCD-18 Co, in physiological and oxidative conditions and effect of oxidative injury of normal colon cells upon supplementation with vitamin C at various concentrations based on Raman spectra. The obtained results were related to the Raman spectra recorded for human colon cancer cells-CaCo-2. In addition, the effect of the antioxidant in the form of vitamin E on gastric cancer cells, HTB-135, is presented and compared with normal gastric cells-CRL-7869. All measured gastric samples were biochemically and structurally characterized by means of Raman spectroscopy and imaging. Statistically assisted analysis has shown that normal, ROS injured and cancerous human gastrointestinal cells can be distinguished based on their unique vibrational properties. ANOVA tests, PCA (Principal Component Analysis) and PLSDA (Partial Least Squares Discriminant Analysis) have confirmed the main role of nucleic acids, proteins and lipids in differentiation of human colon and stomach normal and cancer tissues and cells. The conducted research based on Raman spectra proved that antioxidants in the form of vitamin C and E exhibit anti-cancer properties. In consequence, conducted studies proved that label-free Raman spectroscopy may play an important role in clinical diagnostic differentiation of human normal and cancerous gastrointestinal tissues and may be a source of intraoperative information supporting histopathological analysis.
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Ballav S, Biswas B, Sahu VK, Ranjan A, Basu S. PPAR-γ Partial Agonists in Disease-Fate Decision with Special Reference to Cancer. Cells 2022; 11:3215. [PMID: 36291082 PMCID: PMC9601205 DOI: 10.3390/cells11203215] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2022] [Revised: 10/03/2022] [Accepted: 10/09/2022] [Indexed: 11/16/2023] Open
Abstract
Peroxisome proliferator-activated receptor-γ (PPAR-γ) has emerged as one of the most extensively studied transcription factors since its discovery in 1990, highlighting its importance in the etiology and treatment of numerous diseases involving various types of cancer, type 2 diabetes mellitus, autoimmune, dermatological and cardiovascular disorders. Ligands are regarded as the key determinant for the tissue-specific activation of PPAR-γ. However, the mechanism governing this process is merely a contradictory debate which is yet to be systematically researched. Either these receptors get weakly activated by endogenous or natural ligands or leads to a direct over-activation process by synthetic ligands, serving as complete full agonists. Therefore, fine-tuning on the action of PPAR-γ and more subtle modulation can be a rewarding approach which might open new avenues for the treatment of several diseases. In the recent era, researchers have sought to develop safer partial PPAR-γ agonists in order to dodge the toxicity induced by full agonists, akin to a balanced activation. With a particular reference to cancer, this review concentrates on the therapeutic role of partial agonists, especially in cancer treatment. Additionally, a timely examination of their efficacy on various other disease-fate decisions has been also discussed.
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Affiliation(s)
- Sangeeta Ballav
- Cancer and Translational Research Centre, Dr. D. Y. Patil Biotechnology and Bioinformatics Institute, Dr. D. Y. Patil Vidyapeeth, Tathawade, Pune 411033, India
| | - Bini Biswas
- Cancer and Translational Research Centre, Dr. D. Y. Patil Biotechnology and Bioinformatics Institute, Dr. D. Y. Patil Vidyapeeth, Tathawade, Pune 411033, India
| | - Vishal Kumar Sahu
- Cancer and Translational Research Centre, Dr. D. Y. Patil Biotechnology and Bioinformatics Institute, Dr. D. Y. Patil Vidyapeeth, Tathawade, Pune 411033, India
| | - Amit Ranjan
- Cancer and Translational Research Centre, Dr. D. Y. Patil Biotechnology and Bioinformatics Institute, Dr. D. Y. Patil Vidyapeeth, Tathawade, Pune 411033, India
| | - Soumya Basu
- Cancer and Translational Research Centre, Dr. D. Y. Patil Biotechnology and Bioinformatics Institute, Dr. D. Y. Patil Vidyapeeth, Tathawade, Pune 411033, India
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Reactive Oxygen Species (ROS) and Antioxidants as Immunomodulators in Exercise: Implications for Heme Oxygenase and Bilirubin. Antioxidants (Basel) 2022; 11:antiox11020179. [PMID: 35204062 PMCID: PMC8868548 DOI: 10.3390/antiox11020179] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2021] [Revised: 01/12/2022] [Accepted: 01/14/2022] [Indexed: 02/07/2023] Open
Abstract
Exercise is commonly prescribed as a lifestyle treatment for chronic metabolic diseases as it functions as an insulin sensitizer, cardio-protectant, and essential lifestyle tool for effective weight maintenance. Exercise boosts the production of reactive oxygen species (ROS) and subsequent transient oxidative damage, which also upregulates counterbalancing endogenous antioxidants to protect from ROS-induced damage and inflammation. Exercise elevates heme oxygenase-1 (HO-1) and biliverdin reductase A (BVRA) expression as built-in protective mechanisms, which produce the most potent antioxidant, bilirubin. Together, these mitigate inflammation and adiposity. Moderately raising plasma bilirubin protects in two ways: (1) via its antioxidant capacity to reduce ROS and inflammation, and (2) its newly defined function as a hormone that activates the nuclear receptor transcription factor PPARα. It is now understood that increasing plasma bilirubin can also drive metabolic adaptions, which improve deleterious outcomes of weight gain and obesity, such as inflammation, type II diabetes, and cardiovascular diseases. The main objective of this review is to describe the function of bilirubin as an antioxidant and metabolic hormone and how the HO-1-BVRA-bilirubin-PPARα axis influences inflammation, metabolic function and interacts with exercise to improve outcomes of weight management.
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Role of Peroxisome Proliferator-Activated Receptors (PPARs) in Energy Homeostasis of Dairy Animals: Exploiting Their Modulation through Nutrigenomic Interventions. Int J Mol Sci 2021; 22:ijms222212463. [PMID: 34830341 PMCID: PMC8619600 DOI: 10.3390/ijms222212463] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Revised: 10/31/2021] [Accepted: 11/16/2021] [Indexed: 12/22/2022] Open
Abstract
Peroxisome proliferator-activated receptors (PPARs) are the nuclear receptors that could mediate the nutrient-dependent transcriptional activation and regulate metabolic networks through energy homeostasis. However, these receptors cannot work properly under metabolic stress. PPARs and their subtypes can be modulated by nutrigenomic interventions, particularly under stress conditions to restore cellular homeostasis. Many nutrients such as polyunsaturated fatty acids, vitamins, dietary amino acids and phytochemicals have shown their ability for potential activation or inhibition of PPARs. Thus, through different mechanisms, all these nutrients can modulate PPARs and are ultimately helpful to prevent various metabolic disorders, particularly in transition dairy cows. This review aims to provide insights into the crucial role of PPARs in energy metabolism and their potential modulation through nutrigenomic interventions to improve energy homeostasis in dairy animals.
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Goyal A, Tanwar B, Kumar Sihag M, Sharma V. Sacha inchi (Plukenetia volubilis L.): An emerging source of nutrients, omega-3 fatty acid and phytochemicals. Food Chem 2021; 373:131459. [PMID: 34731811 DOI: 10.1016/j.foodchem.2021.131459] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2021] [Revised: 10/20/2021] [Accepted: 10/20/2021] [Indexed: 12/30/2022]
Abstract
Sacha inchi (Plukenetia volubilis) (SI) is an oleaginous plant producing oil and protein-rich seeds. It has been cultivated for centuries and is native to the tropical rainforest of the Amazon region of South America including parts of Peru and northwestern Brazil. At present, SI seeds are emerging as a potential source of macro- and micronutrients, α-linolenic acid and phytochemicals. This review attempts to elucidate the nutrients, phytonutrients, safety, toxicity, health benefits and food applications of SI seed. Recent scientific studies have associated the consumption of SI seed/oil with reduced risk of chronic inflammatory diseases. However, lack of awareness and in-depth understanding has resulted in it being neglected both at the consumer and industrial level. In all, SI is an underutilized and undervalued oleaginous crop which not only has the potential to mitigate food and nutritional insecurity but also offers humongous opportunities for the development of novel value-added food products.
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Affiliation(s)
- Ankit Goyal
- Department of Dairy Chemistry, Mansinhbhai Institute of Dairy and Food Technology, Mehsana 384002, Gujarat, India.
| | - Beenu Tanwar
- Department of Dairy Technology, Mansinhbhai Institute of Dairy and Food Technology, Mehsana 384002, Gujarat, India.
| | - Manvesh Kumar Sihag
- Department of Dairy Chemistry, College of Dairy Science, Guru Angad Dev Veterinary and Animal Sciences University, Ludhiana 141001, Punjab, India.
| | - Vivek Sharma
- Dairy Chemistry Division, National Dairy Research Institute (ICAR-NDRI), Karnal, Haryana, India.
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Ungurianu A, Zanfirescu A, Nițulescu G, Margină D. Vitamin E beyond Its Antioxidant Label. Antioxidants (Basel) 2021; 10:634. [PMID: 33919211 PMCID: PMC8143145 DOI: 10.3390/antiox10050634] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Revised: 04/14/2021] [Accepted: 04/19/2021] [Indexed: 02/07/2023] Open
Abstract
Vitamin E, comprising tocopherols and tocotrienols, is mainly known as an antioxidant. The aim of this review is to summarize the molecular mechanisms and signaling pathways linked to inflammation and malignancy modulated by its vitamers. Preclinical reports highlighted a myriad of cellular effects like modulating the synthesis of pro-inflammatory molecules and oxidative stress response, inhibiting the NF-κB pathway, regulating cell cycle, and apoptosis. Furthermore, animal-based models have shown that these molecules affect the activity of various enzymes and signaling pathways, such as MAPK, PI3K/Akt/mTOR, JAK/STAT, and NF-κB, acting as the underlying mechanisms of their reported anti-inflammatory, neuroprotective, and anti-cancer effects. In clinical settings, not all of these were proven, with reports varying considerably. Nonetheless, vitamin E was shown to improve redox and inflammatory status in healthy, diabetic, and metabolic syndrome subjects. The anti-cancer effects were inconsistent, with both pro- and anti-malignant being reported. Regarding its neuroprotective properties, several studies have shown protective effects suggesting vitamin E as a potential prevention and therapeutic (as adjuvant) tool. However, source and dosage greatly influence the observed effects, with bioavailability seemingly a key factor in obtaining the preferred outcome. We conclude that this group of molecules presents exciting potential for the prevention and treatment of diseases with an inflammatory, redox, or malignant component.
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Affiliation(s)
- Anca Ungurianu
- Department of Biochemistry, Faculty of Pharmacy, “Carol Davila” University of Medicine and Pharmacy, Traian Vuia 6, 020956 Bucharest, Romania;
| | - Anca Zanfirescu
- Department of Pharmacology and Clinical Pharmacy, Faculty of Pharmacy, “Carol Davila” University of Medicine and Pharmacy, Traian Vuia 6, 020956 Bucharest, Romania;
| | - Georgiana Nițulescu
- Department Pharmaceutical Technology, Faculty of Pharmacy, “Carol Davila” University of Medicine and Pharmacy, Traian Vuia 6, 020956 Bucharest, Romania;
| | - Denisa Margină
- Department of Biochemistry, Faculty of Pharmacy, “Carol Davila” University of Medicine and Pharmacy, Traian Vuia 6, 020956 Bucharest, Romania;
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Abd El Fattah MA, Abdelhamid YA, Elyamany MF, Badary OA, Heikal OA. Rice Bran Extract Protected against LPS-Induced Neuroinflammation in Mice through Targeting PPAR-γ Nuclear Receptor. Mol Neurobiol 2020; 58:1504-1516. [PMID: 33205365 DOI: 10.1007/s12035-020-02196-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2020] [Accepted: 10/30/2020] [Indexed: 12/18/2022]
Abstract
PPAR-γ anti-inflammatory functions have received significant attention since its agonists have been shown to exert a wide range of protective effects in many experimental models of neurologic diseases. Rice bran is very rich in polyunsaturated fatty acids, which are reported to act as PPAR-γ partial agonists. Herein, the anti-inflammatory effect of rice bran extract (RBE) through PPAR-γ activation was evaluated in LPS-induced neuroinflammatory mouse model in comparison to pioglitazone (PG) using 80 Swiss albino mice. RBE (100 mg/kg) and PG (30 mg/kg) were given orally for 21 days and LPS (0.25 mg/kg) was injected intraperitoneally for the last 7 days. TNF-α and COX-2 brain contents were evaluated by real-time PCR and immunohistochemical analysis. In addition, NFκB binding to its response element was evaluated alongside with the effect of treatments on IκB gene expression. Furthermore, PPAR-γ sumoylation was also studied. Finally, histopathological examination was performed for different brain areas. RBE administration was found to protect against the LPS-induced inflammatory effects by decreasing the inflammatory mediator expression in mice brains. It also decreased PPAR-γ sumoylation without significant effect on IκB expression or NFκB binding to its response element. The majority of the effects were attenuated in presence of PPAR-γ antagonist (GW9662). Level of significance was set to P < 0.05. Such findings highlight the agonistic effect of RBE component(s) on PPAR-γ and support the hypothesis of involvement of PPAR-γ activation in its neuroprotective effect.
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Affiliation(s)
- May A Abd El Fattah
- Pharmacology & Toxicology Department, Faculty of Pharmacy, Cairo University, Cairo, Egypt.
| | | | - Mohammed F Elyamany
- Pharmacology & Toxicology Department, Faculty of Pharmacy, Cairo University, Cairo, Egypt
| | - Osama A Badary
- Clinical Pharmacy Department, Faculty of Pharmacy, British University in Egypt, Cairo, Egypt.,Clinical Pharmacy Department, Faculty of Pharmacy, Ain-Shams University, Cairo, Egypt
| | - Ola A Heikal
- Narcotics, Ergogenics & Toxins Department, National Research Center, Giza, Egypt
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12
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Jaffal SM, Oran SA, Alsalem M. Anti-nociceptive effect of Arbutus andrachne L. methanolic leaf extract mediated by CB1, TRPV1 and PPARs in mouse pain models. Inflammopharmacology 2020; 28:1567-1577. [PMID: 32935246 DOI: 10.1007/s10787-020-00746-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2020] [Accepted: 08/25/2020] [Indexed: 12/15/2022]
Abstract
Arbutus andrachne L. is a medicinal plant that grows in Jordan and has many valuable effects. In the present study, the anti-nociceptive effect of A. andrachne methanolic leaf extract was determined in mice using thermal and chemical tests. Our findings show that different doses of A. andrachne extract reduced the number of writhings significantly compared to control group. The leaf extract also reduced the time of paw licking in the early and late phases of formalin test. In all the conducted tests, 300 mg/kg body wt. was the best effective dose. A peroxisome proliferator-activated receptor alpha (PPARα) antagonist reversed the action of the plant extract in the early phase of formalin test while antagonists of the PPARα, PPAR gamma (PPARγ) and cannabinoid 1 (CB1) receptors were responsible for abolishing its effect in the late phase of this test. Also, the extract administration increased the latency time in hot plate and tail flick, an effect that was reversed by the antagonists of PPARγ, CB1 and transient receptor potential vanilloid 1 (TRPV1). No effect was noticed for α2-adrenergic receptor antagonist in the action of A. andrachne in any of the conducted tests in this study. Furthermore, analysis of the constituents in the methanolic leaf extract using liquid chromatography mass spectrometry (LCMS) showed that the extract is rich in compounds that have anti-nociceptive and/or anti-inflammatory effects such as arbutin, rutin, linalool, linoleic acid, gallic acid, lauric acid, myristic acid, hydroquinone, β-sitosterol, ursolic acid, isoquercetin, quercetin, (+)-gallocatechin, kaempferol, α-tocopherol, myricetin 3-O-rhamnoside and catechin gallate. In conclusion, A. andrachne showed promising anti-nociceptive effects in thermal and chemical models of pain. These findings can open an avenue for natural pain relief.
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Affiliation(s)
- Sahar M Jaffal
- Department of Biological Sciences, Faculty of Science, The University of Jordan, Amman, 11942, Jordan
| | - Sawsan A Oran
- Department of Biological Sciences, Faculty of Science, The University of Jordan, Amman, 11942, Jordan
| | - Mohammad Alsalem
- Department of Anatomy and Histology, Faculty of Medicine, The University of Jordan, Amman, 11942, Jordan.
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13
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Shafi S, Gupta P, Khatik GL, Gupta J. PPARγ: Potential Therapeutic Target for Ailments Beyond Diabetes and its Natural Agonism. Curr Drug Targets 2020; 20:1281-1294. [PMID: 31131751 DOI: 10.2174/1389450120666190527115538] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2018] [Revised: 04/29/2019] [Accepted: 04/29/2019] [Indexed: 02/07/2023]
Abstract
Intense research interests have been observed in establishing PPAR gamma as a therapeutic target for diabetes. However, PPARγ is also emerging as an important therapeutic target for varied disease states other than type 2 diabetes like neurodegenerative disorders, cancer, spinal cord injury, asthma, and cardiovascular problems. Furthermore, glitazones, the synthetic thiazolidinediones, also known as insulin sensitizers, are the largely studied PPARγ agonists and the only ones approved for the treatment of type 2 diabetes. However, they are loaded with side effects like fluid retention, obesity, hepatic failure, bone fractures, and cardiac failure; which restrict their clinical application. Medicinal plants used traditionally are the sources of bioactive compounds to be used for the development of successful drugs and many structurally diverse natural molecules are already established as PPARγ agonists. These natural partial agonists when compared to full agonist synthetic thiazolidinediones led to weaker PPARγ activation with lesser side effects but are not thoroughly investigated. Their thorough characterization and elucidation of mechanistic activity might prove beneficial for counteracting diseases by modulating PPARγ activity through dietary changes. We aim to review the therapeutic significance of PPARγ for ailments other than diabetes and highlight natural molecules with potential PPARγ agonistic activity.
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Affiliation(s)
- Sana Shafi
- School of Bioengineering and Biosciences, Lovely Professional University (LPU), Phagwara, Punjab - 144411, India
| | - Pawan Gupta
- School of Pharmaceutical Sciences, Lovely Professional University (LPU), Phagwara, Punjab - 144411, India.,Department of Research and Development, Lovely Professional University (LPU), Phagwara, Punjab - 144411, India
| | - Gopal Lal Khatik
- School of Pharmaceutical Sciences, Lovely Professional University (LPU), Phagwara, Punjab - 144411, India
| | - Jeena Gupta
- School of Bioengineering and Biosciences, Lovely Professional University (LPU), Phagwara, Punjab - 144411, India
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Gao Y, Lu W, Jian L, Machaty Z, Luo H. Vitamin E promotes ovine Sertoli cell proliferation by regulation of genes associated with cell division and the cell cycle. Anim Biotechnol 2020; 33:392-400. [PMID: 32615852 DOI: 10.1080/10495398.2020.1788044] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Yuefeng Gao
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Wei Lu
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Luyang Jian
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Zoltan Machaty
- Department of Animal Sciences, Purdue University, West Lafayette, IN, USA
| | - Hailing Luo
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, China
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15
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Dietary patterns and relative expression levels of PPAR-γ, VEGF-A and HIF-1α genes in benign breast diseases: case-control and consecutive case-series designs. Br J Nutr 2020; 124:832-843. [PMID: 32406342 DOI: 10.1017/s0007114520001737] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
We aimed to study dietary patterns in association with the relative expression levels of PPAR-γ, vascular endothelial growth factor-A (VEGF-A) and hypoxia-inducible factor-1α (HIF-1α) in women with benign breast disease (BBD). The study design was combinative, included a case-series and case-control compartments. Initially, eligible BBD patients (n 77, aged 19-52 years old) were recruited at Nour-Nejat hospital, Tabriz, Iran (2012-2014). A hospital-based group of healthy controls was matched for age (n 231, aged 20-63 years old) and sex. Dietary data were collected using a valid 136-item FFQ. Principal component analysis generated two main components (Kaiser-Meyer-Olkin = 0·684), including a Healthy pattern (whole bread, fruits, vegetables, vegetable oils, legumes, spices, seafood, low-fat meat, skinless poultry, low-fat dairy products, nuts and seeds) and a Western pattern (starchy foods, high-fat meat and poultry, high-fat dairy products, hydrogenated fat, fast food, salt and sweets). High adherence to the Western pattern increased the risk of BBD (ORadj 5·59; 95 % CI 2·06, 15·10; P < 0·01), whereas high intake of the Healthy pattern was associated with a 74 % lower risk of BBD (95 % CI 0·08, 0·81; P < 0·05). In the BBD population, the Western pattern was correlated with over-expression of HIF-1α (radj 0·309, P < 0·05). There were inverse correlations between the Healthy pattern and expressions of PPAR-γ (radj -0·338, P < 0·05), HIF-1α (radj -0·340, P < 0·05) and VEGF-A (radj -0·286, P < 0·05). In conclusion, new findings suggested that the Healthy pattern was associated inversely with the risk of BBD, and this could be correlated with down-regulation of PPAR-γ, VEGF-A and HIF-1α genes, which might hold promise to preclude BBD of malignant pathological transformation.
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Vu DC, Nguyen THD, Ho TL. An overview of phytochemicals and potential health-promoting properties of black walnut. RSC Adv 2020. [DOI: 10.1039/d0ra05714b] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
Black walnut contains a diverse mixture of bioactive compounds, including phenolics, phytosterols, unsaturated fatty acids, and tocopherols potentially important to human health.
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Affiliation(s)
- Danh C. Vu
- Faculty of Technology
- Van Lang University
- Ho Chi Minh City
- Vietnam
| | - Trang H. D. Nguyen
- Institute of Biotechnology and Food Technology
- Industrial University of Ho Chi Minh City
- Vietnam
| | - Thi L. Ho
- Cuu Long Delta Rice Research Institute
- Can Tho
- Vietnam
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17
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Zarkasi KA, Jen-Kit T, Jubri Z. Molecular Understanding of the Cardiomodulation in Myocardial Infarction and the Mechanism of Vitamin E Protections. Mini Rev Med Chem 2019; 19:1407-1426. [DOI: 10.2174/1389557519666190130164334] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2018] [Revised: 11/10/2018] [Accepted: 01/12/2019] [Indexed: 12/13/2022]
Abstract
:
Myocardial infarction is a major cause of deaths globally. Modulation of several molecular
mechanisms occurs during the initial stages of myocardial ischemia prior to permanent cardiac tissue
damage, which involves both pathogenic as well as survival pathways in the cardiomyocyte. Currently,
there is increasing evidence regarding the cardioprotective role of vitamin E in alleviating the disease.
This fat-soluble vitamin does not only act as a powerful antioxidant; but it also has the ability to regulate
several intracellular signalling pathways including HIF-1, PPAR-γ, Nrf-2, and NF-κB that influence
the expression of a number of genes and their protein products. Essentially, it inhibits the molecular
progression of tissue damage and preserves myocardial tissue viability. This review aims to summarize
the molecular understanding of the cardiomodulation in myocardial infarction as well as the
mechanism of vitamin E protection.
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Affiliation(s)
- Khairul Anwar Zarkasi
- Department of Biochemistry, Faculty of Medicine, UKM Medical Centre, Universiti Kebangsaan Malaysia, Jalan Yaacob Latif, Bandar Tun Razak, 56000 Kuala Lumpur, Malaysia
| | - Tan Jen-Kit
- Department of Biochemistry, Faculty of Medicine, UKM Medical Centre, Universiti Kebangsaan Malaysia, Jalan Yaacob Latif, Bandar Tun Razak, 56000 Kuala Lumpur, Malaysia
| | - Zakiah Jubri
- Department of Biochemistry, Faculty of Medicine, UKM Medical Centre, Universiti Kebangsaan Malaysia, Jalan Yaacob Latif, Bandar Tun Razak, 56000 Kuala Lumpur, Malaysia
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Kaur S, Nag A, Gangenahalli G, Sharma K. Peroxisome Proliferator Activated Receptor Gamma Sensitizes Non-small Cell Lung Carcinoma to Gamma Irradiation Induced Apoptosis. Front Genet 2019; 10:554. [PMID: 31263479 PMCID: PMC6585470 DOI: 10.3389/fgene.2019.00554] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2019] [Accepted: 05/24/2019] [Indexed: 12/17/2022] Open
Abstract
The nuclear receptors known as peroxisome proliferator activated receptor gamma (PPARG) are lipid-activated transcription factors that have emerged as key regulators of inflammation. PPARG ligands have been shown to have an anti-proliferative effect on a variety of cancers. These ligands can induce apoptosis via TP53 (Tumor protein p53) or ERK1/2 (Extracellular signal-regulated kinases 1/2) (EPHB2) pathways. However, the exact mechanism is not known. PPAR, a type II nuclear hormone receptor deserves attention as a selective target for radiotherapy. Our study examines the potential of selective agonism of PPARG for radiation therapy in non-small cell lung carcinoma (NSCLC). We found that the overexpression of PPARG protein as well as its induction using the agonist, rosiglitazone was able to stimulate radiation-induced cell death in otherwise radio resistant NSCLC A549 cell line. This cell death was apoptotic and was found to be BAX (BCL2 associated X) mediated. The treatment also inhibited radiation-induced AKT (Protein Kinase B) phosphorylation. Interestingly, the ionising radiation (IR) induced apoptosis was found to be inversely related to TP53 levels. A relatively significant increase in the levels of radiation induced apoptosis was observed in H1299 cells (TP53 null) under PPARG overexpression condition further supporting the inverse relationship between apoptosis and TP53 levels. The combination of PPARG agonist and radiation was able to induce apoptosis at a radiation dose at which A549 and H1299 are radioresistant, thus confirming the potential of the combinatorial strategy. Taken together, PPARG agonism was found to invigorate the radiosensitising effect and hence its use in combination with radiotherapy is expected to enhance sensitivity in otherwise resistant cancer types.
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Affiliation(s)
- Simran Kaur
- Division of Stem Cell and Gene Therapy Research, Institute of Nuclear Medicine and Allied Sciences, New Delhi, India.,Department of Biochemistry, University of Delhi, New Delhi, India
| | - Alo Nag
- Department of Biochemistry, University of Delhi, New Delhi, India
| | - Gurudutta Gangenahalli
- Division of Stem Cell and Gene Therapy Research, Institute of Nuclear Medicine and Allied Sciences, New Delhi, India
| | - Kulbhushan Sharma
- Division of Stem Cell and Gene Therapy Research, Institute of Nuclear Medicine and Allied Sciences, New Delhi, India
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19
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Jiang Q. Natural forms of vitamin E and metabolites-regulation of cancer cell death and underlying mechanisms. IUBMB Life 2018; 71:495-506. [PMID: 30548200 DOI: 10.1002/iub.1978] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2018] [Revised: 10/17/2018] [Accepted: 11/02/2018] [Indexed: 12/25/2022]
Abstract
The disappointing results from large clinical studies of α-tocopherol (αT), the major form of vitamin E in tissues, for prevention of chronic diseases including cancer have cast doubt on not only αT but also other forms of vitamin E regarding their role in preventing carcinogenesis. However, basic research has shown that specific forms of vitamin E such as γ-tocopherol (γT), δ-tocopherol (δT), γ-tocotrienol (γTE) and δ-tocotrienol (δTE) can inhibit the growth and induce death of many types of cancer cells, and are capable of suppressing cancer development in preclinical cancer models. For these activities, these vitamin E forms are much stronger than αT. Further, recent research revealed novel anti-inflammatory and anticancer effects of vitamin E metabolites including 13'-carboxychromanols. This review focuses on anti-proliferation and induction of death in cancer cells by vitamin E forms and metabolites, and discuss mechanisms underlying these anticancer activities. The existing in vitro and in vivo evidence indicates that γT, δT, tocotrienols and 13'-carboxychromanols have anti-cancer activities via modulating key signaling or mediators that regulate cell death and tumor progression, such as eicosanoids, NF-κB, STAT3, PI3K, and sphingolipid metabolism. These results provide useful scientific rationales and mechanistic understanding for further translation of basic discoveries to the clinic with respect to potential use of these vitamin E forms and metabolites for cancer prevention and therapy. © 2018 IUBMB Life, 71(4):495-506, 2019.
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Affiliation(s)
- Qing Jiang
- Department of Nutrition Science, Purdue University, West Lafayette, Indiana, 47907, USA
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20
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Abstract
Vitamin E is a lipid soluble vitamin comprising of eight natural isoforms, namely, α, β, δ, γ isoforms of tocopherol and α, β, δ, γ isoforms of tocotrienol. Many studies have been performed to elucidate its role in cancer. Until last decade, major focus was on alpha tocopherol and its anticancer effects. However, major clinical trials using alpha-tocopherol like SELECT trial and ATBC trial did not yield meaningful results. Hence there was a shift of focus to gamma-tocopherol, delta-tocopherol and tocotrienol. Unlike alpha-tocopherol, gamma-tocopherol and delta-tocopherol can scavenge reactive nitrogen species in addition to reactive oxygen species. Antiangiogenic effect, inhibition of HMG CoA reductase enzyme and inhibition of NF-κB pathway make the anti-cancer effects of tocotrienols unique compared to other vitamin E isoforms. Preclinical research on non-alpha tocopherol isoforms of vitamin E showed promising data on their anticancer effects. In this review, we deal with the current understanding on the potential mechanisms involved in the anticancer effects of vitamin E and the controversies in this field over last three decades. We also highlight the need to conduct further research on the anticancer effects of non-alpha-tocopherol isoforms in larger population and clinical setting.
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Affiliation(s)
- Annette Abraham
- Division of Cardiology, Central Arkansas Veterans Healthcare System and the University of Arkansas for Medical Sciences , Little Rock , Arkansas , USA
| | - Ajoe John Kattoor
- Division of Cardiology, Central Arkansas Veterans Healthcare System and the University of Arkansas for Medical Sciences , Little Rock , Arkansas , USA
| | - Tom Saldeen
- Division of Cardiology, Central Arkansas Veterans Healthcare System and the University of Arkansas for Medical Sciences , Little Rock , Arkansas , USA
| | - Jawahar L Mehta
- Division of Cardiology, Central Arkansas Veterans Healthcare System and the University of Arkansas for Medical Sciences , Little Rock , Arkansas , USA
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21
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Enhancement of cognitive functions by rice bran extract in a neuroinflammatory mouse model via regulation of PPARγ. J Funct Foods 2018. [DOI: 10.1016/j.jff.2018.07.023] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
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Qu Y, Elsasser T, Kahl S, Garcia M, Scholte C, Connor E, Schroeder G, Moyes K. The effects of feeding mixed tocopherol oil on whole-blood respiratory burst and neutrophil immunometabolic-related gene expression in lactating dairy cows. J Dairy Sci 2018; 101:4332-4342. [DOI: 10.3168/jds.2017-13902] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2017] [Accepted: 01/11/2018] [Indexed: 12/12/2022]
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Wang H, Yang X, Liu A, Wang G, Bosland MC, Yang CS. δ-Tocopherol inhibits the development of prostate adenocarcinoma in prostate specific Pten-/- mice. Carcinogenesis 2018; 39:158-169. [PMID: 29121168 PMCID: PMC5862254 DOI: 10.1093/carcin/bgx128] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
The PTEN/PI3K/AKT axis plays a critical role in regulating cell growth, differentiation and survival. Activation of this signaling pathway is frequently found in human cancers. Our previous studies demonstrated that δ-tocopherol (δ-T) attenuates the activation of AKT by growth factor in prostate cancer cell lines, leading to inhibition of proliferation and induction of apoptosis. Herein, we investigated whether δ-T inhibits the development of prostate adenocarcinoma in prostate-specific Pten-/- (Ptenp-/-) mice in which the activation of AKT is the major driving force for tumorigenesis. By feeding Ptenp-/- mice with AIN93M or 0.2% δ-T supplemented diet starting at the age of 6 or 12 weeks, we found that δ-T treatment reduced prostate adenocarcinoma multiplicity at the age of 40 weeks by 53.3 and 42.7%, respectively. Immunohistochemical (IHC) analysis demonstrated that the phosphorylation of AKT (T308) was reduced in the prostate of the mice administered the δ-T diet. Consistently, proliferation was reduced and apoptosis was increased in prostate lesions of mice on the δ-T diet. Oxidative stress, as determined by IHC staining of 8-OH-dG, was not altered during prostate tumorigenesis, nor was it affected by administration of δ-T. In contrast, α-tocopherol (α-T) at 0.2% in the diet did not affect prostate adenocarcinoma multiplicity in the Ptenp-/- mice. This finding is consistent with data from our previous study that δ-T, but not α-T, inhibits the activation of AKT and the growth of prostate cancer cells. Together, these results demonstrate that δ-T inhibits the development of prostate adenocarcinoma in Ptenp-/- mice, mainly through inhibition of AKT activation.
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Affiliation(s)
- Hong Wang
- Department of Chemical Biology, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, USA
| | - Xu Yang
- Department of Chemical Biology, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, USA
| | - Anna Liu
- Department of Chemical Biology, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, USA
| | - Guocan Wang
- Department of Cancer Biology, MD Anderson Cancer Center, Houston, USA
| | - Maarten C Bosland
- Department of Pathology, College of Medicine, University of Illinois at Chicago, Chicago, USA
| | - Chung S Yang
- Department of Chemical Biology, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, USA
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Campos-Perez W, Torres-Castillo N, Perez-Robles M, Muñoz-Valle JF, Vizmanos-Lamotte B, Martinez-Lopez E. Interaction of Vitamin E Intake and Pro12Ala Polymorphism of PPARG with Adiponectin Levels. JOURNAL OF NUTRIGENETICS AND NUTRIGENOMICS 2018; 10:172-180. [PMID: 29402778 DOI: 10.1159/000486160] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/07/2017] [Accepted: 12/07/2017] [Indexed: 11/19/2022]
Abstract
BACKGROUND/AIM One of the beneficial effects associated with vitamin E intake is the enhancement of peroxisome proliferator-activated receptor gamma (PPARγ) activity and the consequent upregulation of adiponectin expression. The aim of this study was to analyze the adiponectin levels in subjects with the Pro12Ala polymorphism of PPARG according to vitamin E intake. METHODS A total of 283 subjects were enrolled. Total vitamin E intake was estimated based on a validated 3-day food consumption record and analyzed using Nutritionist ProTM software. The Pro12Ala polymorphism (rs1801282) was determined by allelic discrimination. The adiponectin levels were measured by an ELISA assay. RESULTS Vitamin E intake was deficient in all subjects (1.50 ± 1.78 mg/day). Subjects with higher vitamin E intake levels and the Pro12Ala/Ala12Ala genotype had statistically significant higher levels of serum adiponectin than subjects with the Pro12Pro genotype (4.4 [3.2-5.7] vs. 2.7 [2.0-3.5] μg/mL; p = 0.024). CONCLUSIONS Our results suggest that increased consumption of vitamin E should be encouraged since it has been reported that vitamin E promotes adiponectin expression via PPARγ activation. Subjects with Pro12Pro genotype had lower serum adiponectin levels than subjects with Pro12Ala/Ala12Ala genotype; therefore, they might be at higher risk of developing metabolic complications.
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Affiliation(s)
- Wendy Campos-Perez
- Medical Molecular Biology Service, "Fray Antonio Alcalde" Civil Hospital of Guadalajara, Department of Molecular Biology and Genomics, University Center of Health Sciences, University of Guadalajara, Guadalajara, Mexico
| | - Nathaly Torres-Castillo
- Medical Molecular Biology Service, "Fray Antonio Alcalde" Civil Hospital of Guadalajara, Department of Molecular Biology and Genomics, University Center of Health Sciences, University of Guadalajara, Guadalajara, Mexico
| | - Mariana Perez-Robles
- Medical Molecular Biology Service, "Fray Antonio Alcalde" Civil Hospital of Guadalajara, Department of Molecular Biology and Genomics, University Center of Health Sciences, University of Guadalajara, Guadalajara, Mexico
| | | | - Barbara Vizmanos-Lamotte
- Department of Human Reproduction, Health Sciences University Center, University of Guadalajara, Guadalajara, Mexico
| | - Erika Martinez-Lopez
- Medical Molecular Biology Service, "Fray Antonio Alcalde" Civil Hospital of Guadalajara, Department of Molecular Biology and Genomics, University Center of Health Sciences, University of Guadalajara, Guadalajara, Mexico
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25
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Alpha-Tocopherol prevents esophageal squamous cell carcinoma by modulating PPARγ-Akt signaling pathway at the early stage of carcinogenesis. Oncotarget 2017; 8:95914-95930. [PMID: 29221176 PMCID: PMC5707070 DOI: 10.18632/oncotarget.21437] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2017] [Accepted: 08/17/2017] [Indexed: 02/07/2023] Open
Abstract
The poor prognosis of esophageal squamous cell carcinoma (ESCC) emphasizes the urgent need to better understand the carcinogenesis and develop prevention strategies. Previous studies have highlighted the potential of using Vitamin E (tocopherols) for cancer chemoprevention, but the preventive activity of α-Tocopherol against ESCC remains to be elucidated. Our data showed that early-stage supplementation with α-Tocopherol significantly prevented esophageal carcinogenesis induced by N-nitrosomethylbenzylamine (NMBA) in ESCC rat model. In the Het-1A cell model, α-Tocopherol markedly suppressed cell proliferation, promoted cell cycle G2-phase arrest and increased apoptosis. Gene microarray and proteins array analysis indicated that Akt signaling was a potential target for α-Tocopherol. We further demonstrated that α-Tocopherol increased the expression of PPARγ and its downstream tumor suppressor PTEN. Knockdown of PPARγ activated Akt signaling transduction, whereas this process was attenuated by the presence of α-Tocopherol and PPARγ agonist Rosiglitazone. In contrast, the effect of α-Tocopherol on Akt inhibition was not observed in established tumors, neither in cancerous cell lines which constitutively expressed higher levels of PPARγ. These results were closely correlated with the ineffectiveness of α-Tocopherol in the late stage of ESCC carcinogenesis. Taken together, our study suggested that α-Tocopherol may serve as a PPARγ agonist for the chemoprevention of esophageal cancer.
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Kushwaha R, Mishra J, Tripathi S, Khare P, Bandyopadhyay S. Arsenic, Cadmium, and Lead Like Troglitazone Trigger PPARγ-Dependent Poly (ADP-Ribose) Polymerase Expression and Subsequent Apoptosis in Rat Brain Astrocytes. Mol Neurobiol 2017; 55:2125-2149. [DOI: 10.1007/s12035-017-0469-7] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2016] [Accepted: 02/23/2017] [Indexed: 02/02/2023]
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Kang JH, Kim S, Moon B. Optimization by response surface methodology of lutein recovery from paprika leaves using accelerated solvent extraction. Food Chem 2016; 205:140-5. [DOI: 10.1016/j.foodchem.2016.03.013] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2015] [Revised: 03/03/2016] [Accepted: 03/03/2016] [Indexed: 11/16/2022]
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28
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González-Calvo L, Joy M, Blanco M, Dervishi E, Molino F, Sarto P, Ripoll G, Serrano M, Calvo JH. Effect of vitamin E supplementation or alfalfa grazing on fatty acid composition and expression of genes related to lipid metabolism in lambs. J Anim Sci 2016; 93:3044-54. [PMID: 26115290 DOI: 10.2527/jas.2014-8758] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
Abstract
The aim of this study was to investigate the effects of vitamin E (VE) supplementation and alfalfa grazing during fattening on fatty acid composition and mRNA expression of genes related to lipid metabolism in the LM of Rasa Aragonesa light lambs. After weaning, 48 lambs were kept indoors and fed a commercial concentrate and a VE supplemented concentrate (480 mg DL-α-tocopheryl acetate/kg DM) for 0 (control [CON]), 10 (VE10d), 20 (VE20d), and 30 d (VE30d) before slaughtering at 22 to 24 kg. Simultaneously, 8 unweaned lambs grazed in alfalfa (154 mg α-tocopherol/kg DM) paddocks with their dams and supplemented with the commercial concentrate (ALF). Immediately after slaughter, LM was sampled to determine gene expression. After 24 h of cooling at 4°C, LM was extracted to determine intramuscular fat (IMF) content and fatty acid composition. The IMF content did not differ with the dietary treatment ( = 0.212). Unweaned grazing alfalfa lambs had greater concentration of rumenic acid (C18:2 c9,t11; P < 0.001) and lower oleic acid (C18:1 c9; = 0.001) content and PUFA n-6:n-3 ratio (P < 0.001) but similar expression of genes implicated in lipid metabolism compared to the concentrate-fed lambs. Vitamin E supplementation did not modify muscle fatty acid composition; however, it increased the expression of FADS2 and ELOVL6, which are involved in desaturation of long-chain fatty acid and the elongation of SFA and MUFA. The results showed that a short period of VE supplementation, especially 10 (VE10d) and 20 d (VE20d), modified gene expression. Overall, the results showed that VE may be acting as a regulatory factor for transcriptional control of genes related to lipid metabolism in the muscle of Rasa Aragonesa light lambs (22-24 kg live weight and younger than 90 d old).
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29
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Collins J, Safah H, Lobelle-Rich P, Whaley S, Campbell S, Saba NS. Reduction in Cell Viability and in Homeobox Protein Levels Following in Vitro Exposure to δ-tocopherol in Acute Myeloid Leukemia. Nutr Cancer 2016; 68:530-4. [PMID: 27008503 DOI: 10.1080/01635581.2016.1153672] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
δ-Tocopherol (δ-T), the least prevalent tocopherol in our diet, was described to have a more potent anticancer activity in solid tumors compared to the other tocopherols. δ-T induces tumor cell death through peroxisome proliferator-activated receptor γ (PPAR-γ) induction, cyclin-D1 inhibition, and modulation of redox balance. Nevertheless, the role of δ-T in preventing or treating hematologic malignancies has not been studied. In this study, we screened the efficacy of δ-T against six cell lines representing a wide spectrum of hematologic malignancies: Jurkat (acute T-cell leukemia), K-562 (chronic myeloid leukemia), KG-1 [acute myeloid leukemia (AML)], THP-1 (acute monocytic leukemia), TOM-1 (acute lymphoblastic leukemia), and UMCL01-101 (AIDS-associated diffuse large B-cell lymphoma). Interestingly, the AML cell line KG-1 was the only one to be significantly affected at concentrations of δ-T as low as 20 µM. The antileukemic activity of δ-T in AML was verified in a set of primary cells collected from patients newly diagnosed with AML. Apoptotic induction and cell cycle arrest explained the efficacy of δ-T against KG-1 cells. The mechanism of cell growth inhibition of δ-T was through downregulation of cyclin-D1 and a set of homeobox proteins (HOXA9, PBX1, and Cdx2) that have a well-documented role in the pathobiology of AML.
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Affiliation(s)
- Julie Collins
- a Department of Medicine , Tulane University , New Orleans , Louisiana , USA
| | - Hana Safah
- b Section of Hematology and Medical Oncology , Department of Medicine, Tulane University , New Orleans , Louisiana , USA
| | - Patricia Lobelle-Rich
- b Section of Hematology and Medical Oncology , Department of Medicine, Tulane University , New Orleans , Louisiana , USA
| | - Sarah Whaley
- c Department of Biomedical Sciences , Quillen College of Medicine, East Tennessee State University , Johnson City , Tennessee , USA
| | - Sharon Campbell
- c Department of Biomedical Sciences , Quillen College of Medicine, East Tennessee State University , Johnson City , Tennessee , USA
| | - Nakhle S Saba
- b Section of Hematology and Medical Oncology , Department of Medicine, Tulane University , New Orleans , Louisiana , USA
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30
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Arnason T, Harkness T. Development, Maintenance, and Reversal of Multiple Drug Resistance: At the Crossroads of TFPI1, ABC Transporters, and HIF1. Cancers (Basel) 2015; 7:2063-82. [PMID: 26501324 PMCID: PMC4695877 DOI: 10.3390/cancers7040877] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2015] [Accepted: 10/10/2015] [Indexed: 12/21/2022] Open
Abstract
Early detection and improved therapies for many cancers are enhancing survival rates. Although many cytotoxic therapies are approved for aggressive or metastatic cancer; response rates are low and acquisition of de novo resistance is virtually universal. For decades; chemotherapeutic treatments for cancer have included anthracyclines such as Doxorubicin (DOX); and its use in aggressive tumors appears to remain a viable option; but drug resistance arises against DOX; as for all other classes of compounds. Our recent work suggests the anticoagulant protein Tissue Factor Pathway Inhibitor 1α (TFPI1α) plays a role in driving the development of multiple drug resistance (MDR); but not maintenance; of the MDR state. Other factors; such as the ABC transporter drug efflux pumps MDR-1/P-gp (ABCB1) and BCRP (ABCG2); are required for MDR maintenance; as well as development. The patient population struggling with therapeutic resistance specifically requires novel treatment options to resensitize these tumor cells to therapy. In this review we discuss the development, maintenance, and reversal of MDR as three distinct phases of cancer biology. Possible means to exploit these stages to reverse MDR will be explored. Early molecular detection of MDR cancers before clinical failure has the potential to offer new approaches to fighting MDR cancer.
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Affiliation(s)
- Terra Arnason
- Department of Medicine, University of Saskatchewan, Saskatoon, SK S7N 0W8, Canada
- Correspondence: ; Tel.:+1-306-844-1119; Fax: +1-306-844-1512
| | - Troy Harkness
- Department of Anatomy and Cell Biology, University of Saskatchewan, Saskatoon, SK S7N 0W8, Canada;
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31
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Wang H, Hong J, Yang CS. δ-Tocopherol inhibits receptor tyrosine kinase-induced AKT activation in prostate cancer cells. Mol Carcinog 2015; 55:1728-1738. [PMID: 26465359 DOI: 10.1002/mc.22422] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2015] [Revised: 09/03/2015] [Accepted: 10/02/2015] [Indexed: 12/31/2022]
Abstract
The cancer preventive activity of vitamin E is suggested by epidemiological studies and supported by animal studies with vitamin E forms, γ-tocopherol and δ-tocopherol (δ-T). Several recent large-scale cancer prevention trials with high dose of α-tocopherol, however, yielded disappointing results. Whether vitamin E prevents or promotes cancer is a serious concern. A better understanding of the molecular mechanisms of action of the different forms of tocopherols would enhance our understanding of this topic. In this study, we demonstrated that δ-T was the most effective tocopherol form in inhibiting prostate cancer cell growth, by inducing cell cycle arrest and apoptosis. By profiling the effects of δ-T on the cell signaling using the phospho-kinase array, we found that the most inhibited target was the phosphorylation of AKT on T308. Further study on the activation of AKT by EGFR and IGFR revealed that δ-T attenuated the EGF/IGF-induced activation of AKT (via the phosphorylation of AKT on T308 induced by the activation of PIK3). Expression of dominant active PIK3 and AKT in prostate cancer cell line DU145 in which PIK3, AKT, and PTEN are wild type caused the cells to be reflectory to the inhibition of δ-T, supporting that δ-T inhibits the PIK3-mediated activation of AKT. Our data also suggest that δ-T interferes with the EGF-induced EGFR internalization, which leads to the inhibition of the receptor tyrosine kinase-dependent activation of AKT. In summary, our results revealed a novel mechanism of δ-T in inhibiting prostate cancer cell growth, supporting the cancer preventive activity δ-T. © 2015 Wiley Periodicals, Inc.
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Affiliation(s)
- Hong Wang
- Susan L. Cullman Laboratory for Cancer Research, Department of Chemical Biology and Center for Cancer Prevention Research, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, New Jersey.
| | - Jungil Hong
- Susan L. Cullman Laboratory for Cancer Research, Department of Chemical Biology and Center for Cancer Prevention Research, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, New Jersey.,Department of Food Science and Technology, College of Natural Science, Seoul Women's University, Seoul, Korea
| | - Chung S Yang
- Susan L. Cullman Laboratory for Cancer Research, Department of Chemical Biology and Center for Cancer Prevention Research, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, New Jersey.
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32
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Justo ML, Claro C, Zeyda M, Stulnig TM, Herrera MD, Rodríguez-Rodríguez R. Rice bran prevents high-fat diet-induced inflammation and macrophage content in adipose tissue. Eur J Nutr 2015; 55:2011-9. [DOI: 10.1007/s00394-015-1015-x] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2015] [Accepted: 08/05/2015] [Indexed: 02/07/2023]
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33
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Das Gupta S, Sae-tan S, Wahler J, So JY, Bak MJ, Cheng LC, Lee MJ, Lin Y, Shih WJ, Shull JD, Safe S, Yang CS, Suh N. Dietary γ-Tocopherol-Rich Mixture Inhibits Estrogen-Induced Mammary Tumorigenesis by Modulating Estrogen Metabolism, Antioxidant Response, and PPARγ. Cancer Prev Res (Phila) 2015; 8:807-16. [PMID: 26130252 DOI: 10.1158/1940-6207.capr-15-0154] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2015] [Accepted: 06/17/2015] [Indexed: 02/07/2023]
Abstract
This study evaluated the anticancer activity and mechanism of action of a γ-tocopherol-rich tocopherol mixture, γ-TmT, in two different animal models of estrogen-induced breast cancer. The chemopreventive effect of γ-TmT at early (6 weeks), intermediate (18 weeks), and late (31 weeks) stages of mammary tumorigenesis was determined using the August-Copenhagen Irish rat model. Female rats receiving 17β-estradiol (E2) implants were administered with different doses (0%, 0.05%, 0.1%, 0.3%, and 0.5%) of γ-TmT diet. Treatment with 0.3% and 0.5% γ-TmT decreased tumor volume and multiplicity. At 31 weeks, serum concentrations of E2 were significantly decreased by γ-TmT. γ-TmT preferentially induced expression of the E2-metabolizing enzyme CYP1A1, over CYP1B1 in the rat mammary tissues. Nrf2-dependent antioxidant response was stimulated by γ-TmT, as evident from enhanced expression of its downstream targets, NQO1, GCLM, and HMOX1. Serum concentrations of the oxidative stress marker, 8-isoprostane, were also decreased in the γ-TmT-treated groups. Treatment with γ-TmT increased expression of PPARγ and its downstream genes, PTEN and p27, whereas the cell proliferation marker, PCNA, was significantly reduced in γ-TmT-treated mammary tumors. In an orthotopic model in which human MCF-7 breast cancer cells were injected into the mammary fat pad of immunodeficient mice, γ-TmT inhibited E2-dependent tumor growth at all the doses tested. In conclusion, γ-TmT reduced mammary tumor development, in part through decreased E2 availability and reduced oxidative stress in mammary tissues; γ-TmT could thus be an effective agent for the prevention and treatment of E2-induced breast cancer.
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Affiliation(s)
- Soumyasri Das Gupta
- Department of Chemical Biology, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, New Jersey
| | - Sudathip Sae-tan
- Department of Chemical Biology, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, New Jersey
| | - Joseph Wahler
- Department of Chemical Biology, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, New Jersey
| | - Jae Young So
- Department of Chemical Biology, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, New Jersey
| | - Min Ji Bak
- Department of Chemical Biology, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, New Jersey
| | - Larry C Cheng
- Department of Chemical Biology, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, New Jersey
| | - Mao-Jung Lee
- Department of Chemical Biology, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, New Jersey
| | - Yong Lin
- Department of Biostatistics, School of Public Health, Rutgers University. Rutgers Cancer Institute of New Jersey, New Brunswick, New Jersey
| | - Weichung Joe Shih
- Department of Biostatistics, School of Public Health, Rutgers University. Rutgers Cancer Institute of New Jersey, New Brunswick, New Jersey
| | - James D Shull
- McArdle Laboratory for Cancer Research, Department of Oncology, School of Medicine and Public Health, University of Wisconsin, Madison, Wisconsin
| | - Stephen Safe
- Department of Veterinary Physiology and Pharmacology, Texas A & M University, College Station, Texas
| | - Chung S Yang
- Department of Chemical Biology, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, New Jersey. Rutgers Cancer Institute of New Jersey, New Brunswick, New Jersey
| | - Nanjoo Suh
- Department of Chemical Biology, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, New Jersey. Rutgers Cancer Institute of New Jersey, New Brunswick, New Jersey.
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34
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Wallert M, Schmölz L, Koeberle A, Krauth V, Glei M, Galli F, Werz O, Birringer M, Lorkowski S. α-Tocopherol long-chain metabolite α-13'-COOH affects the inflammatory response of lipopolysaccharide-activated murine RAW264.7 macrophages. Mol Nutr Food Res 2015; 59:1524-34. [PMID: 25943249 DOI: 10.1002/mnfr.201400737] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2014] [Revised: 04/13/2015] [Accepted: 04/13/2015] [Indexed: 01/28/2023]
Abstract
SCOPE Inflammatory response of macrophages is regulated by vitamin E forms. The long-chain metabolite α-13'-carboxychromanol (α-13'-COOH) is formed by hepatic α-tocopherol (α-TOH) catabolism and acts as a regulatory metabolite via pathways that are different from its metabolic precursor. METHODS AND RESULTS Using semisynthetically-derived α-13'-COOH we profiled its action on LPS-induced expression of pro- and anti-inflammatory genes using RT-qPCR and of key proteins by Western blotting. Effects on inflammatory response were assessed by measuring production of nitric oxide and prostaglandin (PG) E2 , PGD2 , and PGF2α. α-13'-COOH inhibits proinflammatory pathways in LPS-stimulated RAW264.7 macrophages more efficiently than α-TOH. Profiling inflammation-related genes showed significant blocking of interleukin (Il)1β by the metabolite and its precursor as well, while upregulation of Il6 was not impaired. However, induction of Il10, cyclooxygenase 2 (Cox2) and inducible nitric oxide synthase (iNos) by LPS and consequently the formation of nitric oxide and PG was significantly reduced by α-13'-COOH. Interestingly, α-13'-COOH acted independently from translocation of NFκB subunit p65. CONCLUSION Our study sheds new light on the mode of action of α-TOH on the inflammatory response in macrophages, which may be mediated in vivo at least in part by its metabolite α-13'-COOH. Our data show that α-13'-COOH is a potent anti-inflammatory molecule.
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Affiliation(s)
- Maria Wallert
- Department of Nutritional Biochemistry and Physiology, Institute of Nutrition, Friedrich Schiller University Jena, Jena, Germany.,Competence Cluster of Nutrition and Cardiovascular Health (nutriCARD), Friedrich Schiller University Jena, Jena, Germany
| | - Lisa Schmölz
- Department of Nutritional Biochemistry and Physiology, Institute of Nutrition, Friedrich Schiller University Jena, Jena, Germany.,Competence Cluster of Nutrition and Cardiovascular Health (nutriCARD), Friedrich Schiller University Jena, Jena, Germany
| | - Andreas Koeberle
- Department of Pharmaceutical/Medicinal Chemistry, Institute of Pharmacy, Friedrich Schiller University Jena, Jena, Germany
| | - Verena Krauth
- Department of Pharmaceutical/Medicinal Chemistry, Institute of Pharmacy, Friedrich Schiller University Jena, Jena, Germany
| | - Michael Glei
- Competence Cluster of Nutrition and Cardiovascular Health (nutriCARD), Friedrich Schiller University Jena, Jena, Germany.,Department of Pharmaceutical/Medicinal Chemistry, Institute of Pharmacy, Friedrich Schiller University Jena, Jena, Germany.,Department of Nutrition Toxicology, Institute of Nutrition, Friedrich Schiller University Jena, Jena, Germany
| | - Francesco Galli
- Department of Pharmaceutical Sciences, Laboratory of Nutrition and Clinical Biochemistry, University of Perugia, Perugia, Italy
| | - Oliver Werz
- Competence Cluster of Nutrition and Cardiovascular Health (nutriCARD), Friedrich Schiller University Jena, Jena, Germany.,Department of Pharmaceutical/Medicinal Chemistry, Institute of Pharmacy, Friedrich Schiller University Jena, Jena, Germany
| | - Marc Birringer
- Department of Nutritional, Food and Consumer Studies, HS Fulda - University of Applied Sciences, Fulda, Germany
| | - Stefan Lorkowski
- Department of Nutritional Biochemistry and Physiology, Institute of Nutrition, Friedrich Schiller University Jena, Jena, Germany.,Competence Cluster of Nutrition and Cardiovascular Health (nutriCARD), Friedrich Schiller University Jena, Jena, Germany
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35
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Grimm MOW, Stahlmann CP, Mett J, Haupenthal VJ, Zimmer VC, Lehmann J, Hundsdörfer B, Endres K, Grimm HS, Hartmann T. Vitamin E: Curse or Benefit in Alzheimer's Disease? A Systematic Investigation of the Impact of α-, γ- and δ-Tocopherol on Aß Generation and Degradation in Neuroblastoma Cells. J Nutr Health Aging 2015; 19:646-56. [PMID: 26054501 DOI: 10.1007/s12603-015-0506-z] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
OBJECTIVES The E vitamins are a class of lipophilic compounds including tocopherols, which have high antioxidative properties. Because of the elevated lipid peroxidation and increased reactive oxidative species in Alzheimer's disease (AD) many attempts have been made to slow down the progression of AD by utilizing the antioxidative action of vitamin E. Beside the mixed results of these studies nothing is known about the impact of vitamin E on the mechanisms leading to amyloid-β production and degradation being responsible for the plaque formation, one of the characteristic pathological hallmarks in AD. Here we systematically investigate the influence of different tocopherols on Aβ production and degradation in neuronal cell lines. MEASUREMENTS Beside amyloid-β level the mechanisms leading to Aβ production and degradation are examined. RESULTS Surprisingly, all tocopherols have shown to increase Aβ level by enhancing the Aβ production and decreasing the Aβ degradation. Aβ production is enhanced by an elevated activity of the involved enzymes, the β- and γ-secretase. These secretases are not directly affected, but tocopherols increase their protein level and expression. We could identify significant differences between the single tocopherols; whereas α-tocopherol had only minor effects on Aβ production, δ-tocopherol showed the highest potency to increase Aβ generation. Beside Aβ production, Aβ clearance was decreased by affecting IDE, one of the major Aβ degrading enzymes. CONCLUSIONS Our results suggest that beside the beneficial antioxidative effects of vitamin E, tocopherol has in respect to AD also a potency to increase the amyloid-β level, which differ for the analysed tocopherols. We therefore recommend that further studies are needed to clarify the potential role of these various vitamin E species in respect to AD and to identify the form which comprises an antioxidative property without having an amyloidogenic potential.
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Affiliation(s)
- M O W Grimm
- Marcus Grimm, Kirrberger Str.1, Building 90.1, 66421 Homburg/Saar, Germany; Tel: +49-6841-1647919; Fax: +49-6841-1624137; E-mail:
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36
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Moazzami AA, Frank S, Gombert A, Sus N, Bayram B, Rimbach G, Frank J. Non-targeted1H-NMR-metabolomics suggest the induction of master regulators of energy metabolism in the liver of vitamin E-deficient rats. Food Funct 2015; 6:1090-7. [DOI: 10.1039/c4fo00947a] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Consumption of a vitamin E-deficient diet for 6 months may alter hepatic energy metabolism in rats.
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Affiliation(s)
- Ali A. Moazzami
- Department of Chemistry and Biotechnology
- Swedish University of Agricultural Sciences
- Uppsala
- Sweden
| | - Sonja Frank
- Institute of Human Nutrition and Food Science
- Christian-Albrechts-University
- D-24118 Kiel
- Germany
| | - Antonin Gombert
- Department of Chemistry and Biotechnology
- Swedish University of Agricultural Sciences
- Uppsala
- Sweden
| | - Nadine Sus
- Institute of Biological Chemistry and Nutrition
- University of Hohenheim
- D-70599 Stuttgart
- Germany
| | - Banu Bayram
- Institute of Human Nutrition and Food Science
- Christian-Albrechts-University
- D-24118 Kiel
- Germany
| | - Gerald Rimbach
- Institute of Human Nutrition and Food Science
- Christian-Albrechts-University
- D-24118 Kiel
- Germany
| | - Jan Frank
- Institute of Human Nutrition and Food Science
- Christian-Albrechts-University
- D-24118 Kiel
- Germany
- Institute of Biological Chemistry and Nutrition
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37
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Rezaei M, Zeidooni L, Hashemitabar M, Razzazzadeh S, Mahdavinia M, Ghasemi K. Gamma-Tocopherol Enhances Apoptotic Effects of Lovastatin in Human Colorectal Carcinoma Cell Line (HT29). Nutr Cancer 2014; 66:1386-93. [DOI: 10.1080/01635581.2014.956250] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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38
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Cohen C, Cardoso JFR, Garcia SB, Vannucchi H. Vitamin E supplementation in chemical colorectal carcinogenesis: a two-edged knife. Nutrients 2014; 6:3214-29. [PMID: 25123248 PMCID: PMC4145304 DOI: 10.3390/nu6083214] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2014] [Revised: 07/05/2014] [Accepted: 07/16/2014] [Indexed: 12/24/2022] Open
Abstract
This work investigated the effects of Vitamin E (VE) on aberrant crypt foci (ACF) incidence, oxidative stress parameters (serum and hepatic VE concentration, and homocysteine, glutathione (GSH), and malondialdehyde (MDA) levels), and expression of both cyclooxygenase-2 (COX2) and proliferating cellular nuclear antigen (PCNA) in experimental colorectal carcinogenesis. Male Wistar rats received subcutaneous injections of 1,2-dimethylhydrazine (DMH) twice a week, for two weeks (40 mg/kg), except for the Control group. Animals were separated into groups that received different amounts of VE in the diet: 0 IU (0×), 75 IU (recommended daily intake, RDI), 225 IU (3× RDI), or 1500 IU (20× RDI), during (dDMH) or after (aDMH) administration of carcinogen. The 0×dDMH and 3×dDMH groups showed decreased serum VE levels. Hepatic VE concentration was higher in 3×aDMH as compared with the other groups. All the groups, except the Control and the 0×aDMH groups, had reduced GSH levels. The 0×dDMH, 0×aDMH, and 20×aDMH groups exhibited increased MDA levels. The aDMH groups had higher ACF incidence and PCNA expression. The 0×aDMH group presented higher ACF rate, followed by 20×aDMH. Moreover, the 3×aDMH group displayed reduced ACF incidence and COX2 expression. Multivariate analysis revealed that GSH modulated homocysteine levels and COX2. These results suggested that 1500 IU of VE is hazardous, whereas 225 IU of VE has beneficial effects on chemical colorectal carcinogenesis.
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Affiliation(s)
- Celia Cohen
- Department of Internal Medicine, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto14049-900, Brazil.
| | - João Felipe Rito Cardoso
- Department of Pathology and Legal Medicine, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto 14049-900, Brazil.
| | - Sergio Britto Garcia
- Department of Pathology and Legal Medicine, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto 14049-900, Brazil.
| | - Helio Vannucchi
- Department of Internal Medicine, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto14049-900, Brazil.
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Yuan C, Burgyan M, Bunch DR, Reineks E, Jackson R, Steinle R, Wang S. Fast, simple, and sensitive high-performance liquid chromatography method for measuring vitamins A and E in human blood plasma. J Sep Sci 2014; 37:2293-9. [PMID: 24935149 DOI: 10.1002/jssc.201301373] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2014] [Revised: 06/04/2014] [Accepted: 06/05/2014] [Indexed: 11/07/2022]
Abstract
Vitamins A and E are fat-soluble vitamins that play important roles in several physiological processes. Monitoring their concentrations is needed to detect deficiency and guide therapy. In this study, we developed a high-performance liquid chromatography method to measure the major forms of vitamin A (retinol) and vitamin E (α-tocopherol and γ-tocopherol) in human blood plasma. Vitamins A and E were extracted with hexane and separated on a reversed-phase column using methanol as the mobile phase. Retinol was detected by ultraviolet absorption, whereas tocopherols were detected by fluorescence emission. The chromatographic cycle time was 4.0 min per sample. The analytical measurement range was 0.03-5.14, 0.32-36.02, and 0.10-9.99 mg/L for retinol, α-tocopherol, and γ-tocopherol, respectively. Intr-aassay and total coefficient of variation were <6.0% for all compounds. This method was traceable to standard reference materials offered by the National Institute of Standards and Technology. Reference intervals were established using plasma samples collected from 51 healthy adult donors and were found to be 0.30-1.20, 6.0-23.0, and 0.3-3.2 mg/L for retinol, α-tocopherol, and γ-tocopherol, respectively. In conclusion, we developed and validated a fast, simple, and sensitive high-performance liquid chromatography method for measuring the major forms of vitamins A and E in human plasma.
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Affiliation(s)
- Chao Yuan
- Department of Clinical Pathology, Cleveland Clinic, Cleveland, OH, USA
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40
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Hardman WE. Diet components can suppress inflammation and reduce cancer risk. Nutr Res Pract 2014; 8:233-40. [PMID: 24944766 PMCID: PMC4058555 DOI: 10.4162/nrp.2014.8.3.233] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2014] [Revised: 04/24/2014] [Accepted: 04/25/2014] [Indexed: 12/24/2022] Open
Abstract
Epidemiology studies indicate that diet or specific dietary components can reduce the risk for cancer, cardiovascular disease and diabetes. An underlying cause of these diseases is chronic inflammation. Dietary components that are beneficial against disease seem to have multiple mechanisms of action and many also have a common mechanism of reducing inflammation, often via the NFκB pathway. Thus, a plant based diet can contain many components that reduce inflammation and can reduce the risk for developing all three of these chronic diseases. We summarize dietary components that have been shown to reduce cancer risk and two studies that show that dietary walnut can reduce cancer growth and development. Part of the mechanism for the anticancer benefit of walnut was by suppressing the activation of NFκB. In this brief review, we focus on reduction of cancer risk by dietary components and the relationship to suppression of inflammation. However, it should be remembered that most dietary components have multiple beneficial mechanisms of action that can be additive and that suppression of chronic inflammation should reduce the risk for all three chronic diseases.
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Affiliation(s)
- W Elaine Hardman
- Department of Biochemistry and Microbiology, Marshall University Joan C. Edwards School of Medicine, 1600 Medical Center Dr., Huntington, West Virginia 25701-3655, USA
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Hardman WE. Walnuts have potential for cancer prevention and treatment in mice. J Nutr 2014; 144:555S-560S. [PMID: 24500939 PMCID: PMC3952627 DOI: 10.3945/jn.113.188466] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2013] [Revised: 12/04/2013] [Accepted: 12/31/2013] [Indexed: 11/14/2022] Open
Abstract
Cancer may not be completely the result of novel or inherited genetic mutations but may in fact be a largely preventable disease. Researchers have identified biochemicals, including n-3 (ω-3) fatty acids, tocopherols, β-sitosterol, and pedunculagin, that are found in walnuts and that have cancer-prevention properties. Mouse studies in which walnuts were added to the diet have shown the following compared with the control diet: (1) the walnut-containing diet inhibited the growth rate of human breast cancers implanted in nude mice by ∼80%; (2) the walnut-containing diet reduced the number of mammary gland tumors by ∼60% in a transgenic mouse model; (3) the reduction in mammary gland tumors was greater with whole walnuts than with a diet containing the same amount of n-3 fatty acids, supporting the idea that multiple components in walnuts additively or synergistically contribute to cancer suppression; and (4) walnuts slowed the growth of prostate, colon, and renal cancers by antiproliferative and antiangiogenic mechanisms. Cell studies have aided in the identification of the active components in walnuts and of their mechanisms of action. This review summarizes these studies and presents the notion that walnuts may be included as a cancer-preventive choice in a healthy diet.
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Affiliation(s)
- W. Elaine Hardman
- Department of Biochemistry and Microbiology, Marshall University School of Medicine, Huntington, WV
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Wallert M, Mosig S, Rennert K, Funke H, Ristow M, Pellegrino RM, Cruciani G, Galli F, Lorkowski S, Birringer M. Long-chain metabolites of α-tocopherol occur in human serum and inhibit macrophage foam cell formation in vitro. Free Radic Biol Med 2014; 68:43-51. [PMID: 24296243 DOI: 10.1016/j.freeradbiomed.2013.11.009] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/06/2013] [Revised: 11/11/2013] [Accepted: 11/13/2013] [Indexed: 02/07/2023]
Abstract
Despite intensive research the physiological role and molecular mechanisms of action of the lipophilic antioxidant α-tocopherol (α-TOH) are still poorly understood. Hepatic α-TOH catabolism results in intermediate formation of the long-chain metabolites (α-LCMs) α-13'-hydroxy- and α-13'-carboxychromanol (α-13'-OH and α-13'-COOH). We propose that α-LCMs have biological functions that need further exploration. Here we report that α-13'-COOH, as detected by LC/MS Q-TOF, occurs in human serum, providing evidence for its systemic bioavailability. Using semisynthetically derived α-LCMs we performed flow cytometric analyses and found that α-LCMs decrease oxidized LDL (oxLDL) uptake (α-13'-OH, 24±6%, α-13'-COOH, 20±5% vs control) and oxLDL-induced lipid accumulation in human macrophages in vitro (α-13'-OH, 26±4%, α-13'-COOH, 21±9% vs oxLDL), probably owing to α-LCM-mediated reduction in phagocytosis of oxLDL (α-13'-OH, 16±6%, α-13'-COOH, 41±3% vs oxLDL). At the same time, α-LCMs induced expression of CD36, the major scavenger receptor for oxLDL, in human macrophages by about 4.5-fold. Blocking experiments provided evidence that α-LCMs influence oxLDL uptake independent of CD36. A key finding of our study is that bioactivity of the α-LCMs occurs at lower concentrations and with mechanisms distinct from those of their metabolic precursor α-TOH. Our findings shed new light on the mechanistic aspects of α-TOH function in macrophages, which seem to be complicated by circulating α-LCMs. We speculate that α-LCMs represent a new class of regulatory metabolites. Further studies are required to elucidate their physiological role and contribution to cardiovascular disease.
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Affiliation(s)
- Maria Wallert
- Department of Nutritional Biochemistry, Institute of Nutrition, Friedrich Schiller University Jena, 07743 Jena, Germany
| | - Sandy Mosig
- Department of Molecular Hemostaseology, University Hospital Jena, Jena, Germany
| | - Knut Rennert
- Department of Molecular Hemostaseology, University Hospital Jena, Jena, Germany
| | - Harald Funke
- Department of Molecular Hemostaseology, University Hospital Jena, Jena, Germany
| | - Michael Ristow
- Department of Human Nutrition, Institute of Nutrition, Friedrich Schiller University Jena, 07743 Jena, Germany
| | - Roberto Maria Pellegrino
- Laboratory of Molecular Modeling and Chemoinformatics, Department of Chemistry, University of Perugia, Perugia, Italy
| | - Gabriele Cruciani
- Laboratory of Molecular Modeling and Chemoinformatics, Department of Chemistry, University of Perugia, Perugia, Italy
| | - Francesco Galli
- Section of Applied Biochemistry and Nutritional Sciences, Department of Internal Medicine, University of Perugia, Perugia, Italy
| | - Stefan Lorkowski
- Department of Nutritional Biochemistry, Institute of Nutrition, Friedrich Schiller University Jena, 07743 Jena, Germany.
| | - Marc Birringer
- Department of Human Nutrition, Institute of Nutrition, Friedrich Schiller University Jena, 07743 Jena, Germany.
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Podszun MC, Grebenstein N, Spruss A, Schlueter T, Kremoser C, Bergheim I, Frank J. Dietary α-tocopherol and atorvastatin reduce high-fat-induced lipid accumulation and down-regulate CD36 protein in the liver of guinea pigs. J Nutr Biochem 2014; 25:573-9. [PMID: 24725433 DOI: 10.1016/j.jnutbio.2014.01.008] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2013] [Revised: 01/15/2014] [Accepted: 01/20/2014] [Indexed: 12/21/2022]
Abstract
The increased uptake and storage of lipids in the liver are important features of steatotic liver diseases. The fatty acid translocase/scavenger receptor cluster of differentiation (CD)36 facilitates the hepatic uptake of lipids. We investigated if RRR-α-tocopherol (αT) alone or in combination with atorvastatin (ATV) is capable of preventing hepatic lipid accumulation via down-regulation of CD36. To this end, Dunkin Hartley guinea pigs were fed a control diet (5% fat); or a high-fat control diet (21% fat, 0.15% cholesterol); or a high-fat control diet fortified with αT (250 mg/kg diet), ATV (300 mg/kg diet) or both ATV+αT for 6 weeks. Hepatic triacylglycerols, hepatic protein and mRNA expression of CD36 as well as the mRNA expression of the controlling nuclear receptors LXRα, PXR and PPARγ were determined. Animals fed the high-fat control diet accumulated significantly more triacylglycerols in the liver than control animals. This was significantly reduced by ATV and numerically by αT and ATV+αT. Hepatic CD36 protein concentrations were significantly higher in the high-fat than in the control group, and both αT and ATV reduced CD36 expression to the level observed in the control group. However, no synergistic effect of the combined treatment was observed. Neither CD36 mRNA nor that of the nuclear receptors (LXRα, PXR and PPARγ) differed between groups, suggesting a posttranslational regulatory mechanism. Our results indicate that orally administered ATV and αT individually, but not synergistically, prevent diet-induced lipid accumulation in the liver of guinea pigs by down-regulation of hepatic CD36 protein.
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Affiliation(s)
- Maren C Podszun
- Institute of Biological Chemistry and Nutrition, University of Hohenheim, D-70599 Stuttgart, Germany
| | - Nadine Grebenstein
- Institute of Biological Chemistry and Nutrition, University of Hohenheim, D-70599 Stuttgart, Germany
| | - Astrid Spruss
- Institute of Nutrition, University of Jena, D-07743 Jena, Germany
| | | | | | - Ina Bergheim
- Institute of Nutrition, University of Jena, D-07743 Jena, Germany
| | - Jan Frank
- Institute of Biological Chemistry and Nutrition, University of Hohenheim, D-70599 Stuttgart, Germany.
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Antiplatelet effects of natural bioactive compounds by multiple targets: Food and drug interactions. J Funct Foods 2014. [DOI: 10.1016/j.jff.2013.10.012] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
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Fuentes E, Fuentes F, Palomo I. Mechanism of the anti-platelet effect of natural bioactive compounds: Role of peroxisome proliferator-activated receptors activation. Platelets 2013; 25:471-9. [DOI: 10.3109/09537104.2013.849334] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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Relationship between Platelet PPARs, cAMP Levels, and P-Selectin Expression: Antiplatelet Activity of Natural Products. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2013; 2013:861786. [PMID: 24324520 PMCID: PMC3845334 DOI: 10.1155/2013/861786] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/14/2013] [Accepted: 09/23/2013] [Indexed: 11/22/2022]
Abstract
Platelets are no longer considered simply as cells participating in thrombosis. In atherosclerosis, platelets are regulators of multiple processes, with the recruitment of inflammatory cells towards the lesion sites, inflammatory mediators release, and regulation of endothelial function. The antiplatelet therapy has been used for a long time in an effort to prevent and treat cardiovascular diseases. However, limited efficacy in some patients, drug resistance, and side effects are limitations of current antiplatelet therapy. In this context, a large number of natural products (polyphenols, terpenoids, alkaloids, and fatty acids) have been reported with antiplatelet activity. In this sense, the present paper describes mechanisms of antiplatelet action of natural products on platelet P-selectin expression through cAMP levels and its role as peroxisome proliferator-activated receptors agonists.
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In vivo regulation of gene transcription by alpha- and gamma-tocopherol in murine T lymphocytes. Arch Biochem Biophys 2013; 538:111-9. [DOI: 10.1016/j.abb.2013.08.010] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2013] [Revised: 08/12/2013] [Accepted: 08/17/2013] [Indexed: 12/18/2022]
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Effects of germinated brown rice and its bioactive compounds on the expression of the peroxisome proliferator-activated receptor gamma gene. Nutrients 2013; 5:468-77. [PMID: 23389305 PMCID: PMC3635206 DOI: 10.3390/nu5020468] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2012] [Accepted: 01/21/2013] [Indexed: 02/08/2023] Open
Abstract
Dysregulated metabolism is implicated in obesity and other disease conditions like type 2 diabetes mellitus and cardiovascular diseases, which are linked to abnormalities of peroxisome proliferator-activated receptor gamma (PPARγ). PPARγ has been the focus of much research aimed at managing these diseases. Also, germinated brown rice (GBR) is known to possess antidiabetic, antiobesity and hypocholesterolemic effects. We hypothesized that GBR bioactive compounds may mediate some of the improvements in metabolic indices through PPARγ modulation. Cultured HEP-G2 cells were treated with 50 ppm and 100 ppm of extracts from GBR (GABA, ASG and oryzanol) after determination of cell viabilities using MTT assays. Results showed that all extracts upregulated the expression of the PPARγ. However, combination of all three extracts showed downregulation of the gene, suggesting that, in combination, the effects of these bioactives differ from their individual effects likely mediated through competitive inhibition of the gene. Upregulation of the gene may have therapeutic potential in diabetes mellitus and cardiovascular diseases, while its downregulation likely contributes to GBR's antiobesity effects. These potentials are worth studying further.
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Patel CJ, Chen R, Butte AJ. Data-driven integration of epidemiological and toxicological data to select candidate interacting genes and environmental factors in association with disease. Bioinformatics 2013; 28:i121-6. [PMID: 22689751 PMCID: PMC3371861 DOI: 10.1093/bioinformatics/bts229] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Motivation: Complex diseases, such as Type 2 Diabetes Mellitus (T2D), result from the interplay of both environmental and genetic factors. However, most studies investigate either the genetics or the environment and there are a few that study their possible interaction in context of disease. One key challenge in documenting interactions between genes and environment includes choosing which of each to test jointly. Here, we attempt to address this challenge through a data-driven integration of epidemiological and toxicological studies. Specifically, we derive lists of candidate interacting genetic and environmental factors by integrating findings from genome-wide and environment-wide association studies. Next, we search for evidence of toxicological relationships between these genetic and environmental factors that may have an etiological role in the disease. We illustrate our method by selecting candidate interacting factors for T2D. Contact:abutte@stanford.edu
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Affiliation(s)
- Chirag J Patel
- Division of Systems Medicine, Department of Pediatrics, Stanford University School of Medicine, Stanford, CA 94305, USA
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Ortuño Sahagún D, Márquez-Aguirre AL, Quintero-Fabián S, López-Roa RI, Rojas-Mayorquín AE. Modulation of PPAR-γ by Nutraceutics as Complementary Treatment for Obesity-Related Disorders and Inflammatory Diseases. PPAR Res 2012; 2012:318613. [PMID: 23251142 PMCID: PMC3515933 DOI: 10.1155/2012/318613] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2012] [Revised: 10/03/2012] [Accepted: 10/23/2012] [Indexed: 12/16/2022] Open
Abstract
A direct correlation between adequate nutrition and health is a universally accepted truth. The Western lifestyle, with a high intake of simple sugars, saturated fat, and physical inactivity, promotes pathologic conditions. The main adverse consequences range from cardiovascular disease, type 2 diabetes, and metabolic syndrome to several cancers. Dietary components influence tissue homeostasis in multiple ways and many different functional foods have been associated with various health benefits when consumed. Natural products are an important and promising source for drug discovery. Many anti-inflammatory natural products activate peroxisome proliferator-activated receptors (PPAR); therefore, compounds that activate or modulate PPAR-gamma (PPAR-γ) may help to fight all of these pathological conditions. Consequently, the discovery and optimization of novel PPAR-γ agonists and modulators that would display reduced side effects is of great interest. In this paper, we present some of the main naturally derived products studied that exert an influence on metabolism through the activation or modulation of PPAR-γ, and we also present PPAR-γ-related diseases that can be complementarily treated with nutraceutics from functional foods.
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Affiliation(s)
- D. Ortuño Sahagún
- Laboratorio de Desarrollo y Regeneración Neural, Instituto de Neurobiología, Departamento de Biología Celular y Molecular, CUCBA, Universidad de Guadalajara, camino Ing. R. Padilla Sánchez 2100, Las Agujas, 44600 Zapopan JAL, Mexico
| | - A. L. Márquez-Aguirre
- Unidad de Biotecnología Médica y Farmacéutica, Centro de Investigación y Asistencia en Tecnología y Diseño del Estado de Jalisco A.C., 44270 Guadalajara, JAL, Mexico
| | - S. Quintero-Fabián
- Laboratorio de Desarrollo y Regeneración Neural, Instituto de Neurobiología, Departamento de Biología Celular y Molecular, CUCBA, Universidad de Guadalajara, camino Ing. R. Padilla Sánchez 2100, Las Agujas, 44600 Zapopan JAL, Mexico
- Departamento de Farmacobiología, CUCEI, Universidad de Guadalajara, Boulevard Marcelino García Barragán, 44430 Tlaquepaque, JAL, Mexico
| | - R. I. López-Roa
- Departamento de Farmacobiología, CUCEI, Universidad de Guadalajara, Boulevard Marcelino García Barragán, 44430 Tlaquepaque, JAL, Mexico
| | - A. E. Rojas-Mayorquín
- Departamento de Ciencias Ambientales, Instituto de Neurociencias, CUCBA, Universidad de Guadalajara, 45100, JAL, Mexico
- Departamento de Investigación Básica, Instituto Nacional de Geriatría (INGER), Periférico Sur No. 2767, Col, San Jerónimo Lídice, Delegación Magdalena Contreras 10200, México DF, Mexico
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