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Liu H, Wang D, Ma Y, Sun H, Wang L, Shi Y, Wang J, Chen X. Hyperbaric Oxygen Therapy Ameliorates Sperm Parameters in Apolipoprotein E Knockout Mice Testes by Attenuating Oxidative Stress and Inflammation. Reprod Sci 2023; 30:2252-2262. [PMID: 36745359 DOI: 10.1007/s43032-022-01158-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2022] [Accepted: 12/21/2022] [Indexed: 02/07/2023]
Abstract
Apolipoprotein E (ApoE) is a member of apolipoprotein (apo) family and plays critical role in lipid metabolism. In this study, the relationship between abnormal lipid metabolism caused by ApoE-deficient and male reproduction was investigated. The effect of hyperbaric oxygen (HBO) therapy on 7-month-old ApoE-knockout male mice was assessed subsequently. Mice were randomly divided into 3 groups: control group (WT), ApoE (- / -) group (AP-CON), and ApoE (- / -) plus HBO group (AP-HBO), which received HBO treatment. We found that ApoE knockout caused a decrease in male reproductive capacity due to the reduced total sperm motility, progressive motility (PR), and lower blastocyst formation rate. HBO treatment could accelerate serum lipoprotein metabolism including LDL, T-CHO, and TG and semen quality. As a result, fertilization and blastocyst formation of AP-HBO group were higher than that of AP-CON, proving positive therapeutic effect. Mechanism exploration found that HBO treatment ameliorated the testicular microenvironment by attenuating inflammatory factor production and oxidative stress, eventually improved the sperm motility. Collectively, our study provided more evidences of HBO treatment for improving the semen quality of patients with abnormal lipid metabolism caused by ApoE-deficient.
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Affiliation(s)
- Huijun Liu
- Center of Reproduction, The Affiliated Changzhou No. 2 People's Hospital of Nanjing Medical University, No. 68 Gehu Road, Jiangsu, 213003, Changzhou, China
| | - Danni Wang
- Center of Reproduction, The Affiliated Changzhou No. 2 People's Hospital of Nanjing Medical University, No. 68 Gehu Road, Jiangsu, 213003, Changzhou, China
| | - Yang Ma
- Center of Reproduction, The Affiliated Changzhou No. 2 People's Hospital of Nanjing Medical University, No. 68 Gehu Road, Jiangsu, 213003, Changzhou, China
| | - Huiting Sun
- Center of Reproduction, The Affiliated Changzhou No. 2 People's Hospital of Nanjing Medical University, No. 68 Gehu Road, Jiangsu, 213003, Changzhou, China
| | - Linxiao Wang
- Laboratory of Neurological Diseases, The Affiliated Changzhou No. 2 People's Hospital of Nanjing Medical University, Changzhou, 213003, Jiangsu, China
| | - Yichao Shi
- Center of Reproduction, The Affiliated Changzhou No. 2 People's Hospital of Nanjing Medical University, No. 68 Gehu Road, Jiangsu, 213003, Changzhou, China
| | - Jiaping Wang
- Center of Reproduction, The Affiliated Changzhou No. 2 People's Hospital of Nanjing Medical University, No. 68 Gehu Road, Jiangsu, 213003, Changzhou, China.
| | - Xia Chen
- Center of Reproduction, The Affiliated Changzhou No. 2 People's Hospital of Nanjing Medical University, No. 68 Gehu Road, Jiangsu, 213003, Changzhou, China.
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Tauchen J, Frankova A, Manourova A, Valterova I, Lojka B, Leuner O. Garcinia kola: a critical review on chemistry and pharmacology of an important West African medicinal plant. PHYTOCHEMISTRY REVIEWS : PROCEEDINGS OF THE PHYTOCHEMICAL SOCIETY OF EUROPE 2023:1-47. [PMID: 37359709 PMCID: PMC10205037 DOI: 10.1007/s11101-023-09869-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/01/2022] [Accepted: 04/03/2023] [Indexed: 06/28/2023]
Abstract
Garcinia kola Heckel (Clusiaceae) is a tree indigenous to West and Central Africa. All plant parts, but especially the seeds, are of value in local folklore medicine. Garcinia kola is used in treatment of numerous diseases, including gastric disorders, bronchial diseases, fever, malaria and is used to induce a stimulating and aphrodisiac effect. The plant is now attracting considerable interest as a possible source of pharmaceutically important drugs. Several different classes of compounds such as biflavonoids, benzophenones, benzofurans, benzopyran, vitamin E derivatives, xanthones, and phytosterols, have been isolated from G. kola, of which many appears to be found only in this species, such as garcinianin (found in seeds and roots), kolanone (fruit pulp, seeds, roots), gakolanone (stem bark), garcinoic acid, garcinal (both in seeds), garcifuran A and B, and garcipyran (all in roots). They showed a wide range of pharmacological activities (e.g. analgesic, anticancer, antidiabetic, anti-inflammatory, antimalarial, antimicrobial, hepatoprotective and neuroprotective effects), though this has only been confirmed in animal models. Kolaviron is the most studied compound and is perceived by many studies as the active principle of G. kola. However, its research is associated with significant flaws (e.g. too high doses tested, inappropriate positive control). Garcinol has been tested under better conditions and is perhaps showing more promising results and should attract deeper research interest (especially in the area of anticancer, antimicrobial, and neuroprotective activity). Human clinical trials and mechanism-of-action studies must be carried out to verify whether any of the compounds present in G. kola may be used as a lead in the drug development.
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Affiliation(s)
- Jan Tauchen
- Department of Food Science, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences, Prague, Czech Republic
| | - Adela Frankova
- Department of Food Science, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences, Prague, Czech Republic
| | - Anna Manourova
- Department of Crop Sciences and Agroforestry, Faculty of Tropical AgriSciences, Czech University of Life Sciences, Prague, Czech Republic
| | - Irena Valterova
- Department of Crop Sciences and Agroforestry, Faculty of Tropical AgriSciences, Czech University of Life Sciences, Prague, Czech Republic
- Institute of Organic Chemistry and Biochemistry, Academy of Sciences of the Czech Republic, Prague, Czech Republic
| | - Bohdan Lojka
- Department of Crop Sciences and Agroforestry, Faculty of Tropical AgriSciences, Czech University of Life Sciences, Prague, Czech Republic
| | - Olga Leuner
- Department of Crop Sciences and Agroforestry, Faculty of Tropical AgriSciences, Czech University of Life Sciences, Prague, Czech Republic
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Khallouki F, Saber S, Bouddine T, Hajji L, Elbouhali B, Silvente-Poirot S, Poirot M. In vitro and In vivo oxidation and cleavage products of tocols: From chemical tuners to “VitaminEome” therapeutics. A narrative review. FOOD BIOSCI 2022. [DOI: 10.1016/j.fbio.2022.101839] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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4
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Liu H, Pietersz G, Peter K, Wang X. Nanobiotechnology approaches for cardiovascular diseases: site-specific targeting of drugs and nanoparticles for atherothrombosis. J Nanobiotechnology 2022; 20:75. [PMID: 35135581 PMCID: PMC8822797 DOI: 10.1186/s12951-022-01279-y] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2021] [Accepted: 01/21/2022] [Indexed: 02/18/2023] Open
Abstract
Atherosclerosis and atherothrombosis, the major contributors to cardiovascular diseases (CVDs), represent the leading cause of death worldwide. Current pharmacological therapies have been associated with side effects or are insufficient at halting atherosclerotic progression effectively. Pioneering work harnessing the passive diffusion or endocytosis properties of nanoparticles and advanced biotechnologies in creating recombinant proteins for site-specific delivery have been utilized to overcome these limitations. Since CVDs are complex diseases, the most challenging aspect of developing site-specific therapies is the identification of an individual and unique antigenic epitope that is only expressed in lesions or diseased areas. This review focuses on the pathological mechanism of atherothrombosis and discusses the unique targets that are important during disease progression. We review recent advances in site-specific therapy using novel targeted drug-delivery and nanoparticle-carrier systems. Furthermore, we explore the limitations and future perspectives of site-specific therapy for CVDs.
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Affiliation(s)
- Haikun Liu
- Molecular Imaging and Theranostics Laboratory, Baker Heart and Diabetes Institute, 75 Commercial Road, Melbourne, VIC, 3004, Australia
| | - Geoffrey Pietersz
- Atherothrombosis and Vascular Biology Laboratory, Baker Heart and Diabetes Institute, Melbourne, VIC, Australia.,Burnet Institute, Melbourne, VIC, Australia.,Department of Cardiometabolic Health, University of Melbourne, VIC, Australia
| | - Karlheinz Peter
- Atherothrombosis and Vascular Biology Laboratory, Baker Heart and Diabetes Institute, Melbourne, VIC, Australia.,Department of Cardiometabolic Health, University of Melbourne, VIC, Australia.,Department of Medicine, Monash University, Melbourne, VIC, Australia.,La Trobe Institute for Molecular Science, La Trobe University, Melbourne, VIC, Australia
| | - Xiaowei Wang
- Molecular Imaging and Theranostics Laboratory, Baker Heart and Diabetes Institute, 75 Commercial Road, Melbourne, VIC, 3004, Australia. .,Atherothrombosis and Vascular Biology Laboratory, Baker Heart and Diabetes Institute, Melbourne, VIC, Australia. .,Department of Cardiometabolic Health, University of Melbourne, VIC, Australia. .,Department of Medicine, Monash University, Melbourne, VIC, Australia. .,La Trobe Institute for Molecular Science, La Trobe University, Melbourne, VIC, Australia.
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5
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Jiang Q. Metabolism of natural forms of vitamin E and biological actions of vitamin E metabolites. Free Radic Biol Med 2022; 179:375-387. [PMID: 34785321 PMCID: PMC9018116 DOI: 10.1016/j.freeradbiomed.2021.11.012] [Citation(s) in RCA: 28] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/13/2021] [Revised: 10/29/2021] [Accepted: 11/01/2021] [Indexed: 12/12/2022]
Abstract
Natural forms of vitamin E comprise four tocopherols and four tocotrienols. During the last twenty years, there have been breakthroughs in our understanding of vitamin E metabolism and biological activities of vitamin E metabolites. Research has established that tocopherols and tocotrienols are metabolized via ω-hydroxylase (CYP4F2)-initiated side chain oxidation to form 13'-hydroxychromanol and 13'-carobyxychromanol (13'-COOH). 13'-COOHs are further metabolized via β-oxidation and sulfation to intermediate carboxychromanols, terminal metabolite carboxyethyl-hydroxychroman (CEHC), and sulfated analogs. Animal and human studies show that γ-, δ-tocopherol and tocotrienols are more extensively metabolized than α-tocopherol (αT), as indicated by higher formation of CEHCs and 13'-COOHs from non-αT forms than those from αT. 13'-COOHs are shown to be inhibitors of cyclooxygenase-1/-2 and 5-lipoxygenase and much stronger than CEHCs for these activities. 13'-COOHs inhibit cancer cell growth, modulate cellular lipids and activate peroxisome proliferator-activated receptor-γ and pregnane X receptor. Consistent with mechanistic findings, αT-13'-COOH or δTE-13'-COOH, respective metabolites of αT or δ-tocotrienol, show anti-inflammatory and cancer-preventive effects, modulates the gut microbiota and prevents β-amyloid formation in mice. Therefore, 13'-COOHs are a new class of bioactive compounds with anti-inflammatory and anti-cancer activities and potentially capable of modulating lipid and drug metabolism. Based on the existing evidence, this author proposes that metabolites may contribute to disease-preventing effects of γ-, δ-tocopherol and tocotrienols. The role of metabolites in αT's actions may be somewhat limited considering controlled metabolism of αT because of its association with tocopherol-transport protein and less catabolism by CYP4F2 than other vitamin E forms.
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Affiliation(s)
- Qing Jiang
- Department of Nutrition Science, Purdue University, IN, 47907, West Lafayette, USA.
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6
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Cetkovic-Cvrlje M, Rogan S, Barbaro E. Garcinia kola treatment exhibits immunomodulatory properties while not affecting type 1 diabetes development in an experimental mouse model. Int J Immunopathol Pharmacol 2022. [PMCID: PMC8777369 DOI: 10.1177/20587384211069831] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Objective T cells orchestrate an inflammatory response that destroys pancreatic insulin-producing
β cells during the development of autoimmune type 1 diabetes (T1D). Garcinia
kola Heckel (GK) is a plant widely exploited in West African traditional
medicine. Some of the therapeutic effects of GK nut’s extract (GKE) have been suggested
to be due to its anti-inflammatory potential. Since GKE has never been investigated in a
T1D experimental model, nor in the T cells’ context, we aimed to determine whether GKE
exhibits antidiabetic properties and affects T cells by its anticipated
anti-inflammatory action. Methods The effect of aqueous GKE (aGKE) ingestion, 100 mg/kg daily by drinking water over the
period of 6 weeks, has been tested in a low-dose streptozotocin-induced (LDSTZ) mouse
model of autoimmune T1D. T cells were studied in vitro and in
vivo in mice treated by aGKE. Results The results showed that aGKE treatment, which started a week before induction of
disease, neither delayed the development of T1D, nor reduced glycemia severity.
Interestingly, aGKE treatment did affect T cells and their function, significantly
decreasing the frequency of helper (TH) and cytotoxic (TC) T
cells, while elevating the levels of pro-inflammatory cytokines, TNF-α, IL-6, and IFN-γ,
and suppressing IL-2. Conclusion In conclusion, our results did not confirm the antidiabetic property of GKE, while
suggesting its therapeutic exploration in TH2-dependent pathologies that
benefit from an aggravated TH1 response, such as allergies.
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Affiliation(s)
- Marina Cetkovic-Cvrlje
- Department of Biological Sciences andImmunology Laboratory, St Cloud State University, St Cloud, MN, USA
| | - Shana Rogan
- Department of Biological Sciences andImmunology Laboratory, St Cloud State University, St Cloud, MN, USA
| | - Emily Barbaro
- Department of Biological Sciences andImmunology Laboratory, St Cloud State University, St Cloud, MN, USA
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7
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Schubert M, Kluge S, Brunner E, Pace S, Birringer M, Werz O, Lorkowski S. The α-tocopherol-derived long-chain metabolite α-13'-COOH mediates endotoxin tolerance and modulates the inflammatory response via MAPK and NFκB pathways. Free Radic Biol Med 2022; 178:83-96. [PMID: 34848369 DOI: 10.1016/j.freeradbiomed.2021.11.032] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Revised: 11/11/2021] [Accepted: 11/15/2021] [Indexed: 12/29/2022]
Abstract
SCOPE The long-chain metabolites of (LCM) vitamin E are proposed as the active regulatory metabolites of vitamin E providing, with their anti-inflammatory properties, an explanatory approach for the inconsistent effects of vitamin E on inflammatory-driven diseases. We examined the modulation of cytokine expression and release from macrophages, a fundamental process in many diseases, to gain insights into the anti-inflammatory mechanisms of the α-tocopherol-derived LCM α-13'-COOH. METHODS AND RESULTS Suppressed gene expression of C-C motif chemokine ligand 2 (Ccl2), tumor necrosis factor (Tnf), and interleukin (Il) 6 in response to lipopolysaccharides by 24 h pre-treatment with α-13'-COOH in RAW264.7 macrophages was revealed using quantitative reverse transcription PCR. Further, reduced secretion of IL1β and CCL2 was found in this setup using flow cytometry. In contrast, 1 h pre-treatment suppressed only CCL2. Consequent gene expression analysis within 24 h of α-13'-COOH treatment revealed the induction of mitogen-activated protein kinases (MAPK) and nuclear factor kappa-light-chain-enhancer of activated B cells (NFκB) negative feedback regulators including the 'master regulators' dual-specificity phosphatase 1 (Dusp1/Mkp1) and tumor necrosis factor induced protein 3 (Tnfaip3/A20). Approaches with immunoblots and chemical antagonists suggest a feedback induction via activation of extracellular-signal regulated kinase (ERK), p38 MAPK and NFκB pathways. CONCLUSIONS CCL2 is suppressed in murine macrophages by α-13'-COOH and the indirect suppression of MAPK and NFκB pathways is likely a relevant process contributing to anti-inflammatory actions of α-13'-COOH. These results improve the understanding of the effects of α-13'-COOH and provide a basis for new research strategies in the context of inflammatory diseases.
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Affiliation(s)
- Martin Schubert
- Institute of Nutritional Sciences, Friedrich Schiller University Jena, Germany; Competence Cluster for Nutrition and Cardiovascular Health (nutriCARD) Halle-Jena-Leipzig, Germany
| | - Stefan Kluge
- Institute of Nutritional Sciences, Friedrich Schiller University Jena, Germany; Competence Cluster for Nutrition and Cardiovascular Health (nutriCARD) Halle-Jena-Leipzig, Germany
| | - Elena Brunner
- Institute of Pharmacy, Friedrich Schiller University Jena, Germany
| | - Simona Pace
- Institute of Pharmacy, Friedrich Schiller University Jena, Germany
| | - Marc Birringer
- Department of Nutrition, Food and Consumer Sciences, University of Applied Sciences Fulda, Germany; Regionales Innovationszentrum Gesundheit und Lebensqualität (RIGL), Fulda, Germany
| | - Oliver Werz
- Institute of Pharmacy, Friedrich Schiller University Jena, Germany
| | - Stefan Lorkowski
- Institute of Nutritional Sciences, Friedrich Schiller University Jena, Germany; Competence Cluster for Nutrition and Cardiovascular Health (nutriCARD) Halle-Jena-Leipzig, Germany.
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8
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Olajide OA, Iwuanyanwu VU, Lepiarz-Raba I, Al-Hindawi AA, Aderogba MA, Sharp HL, Nash RJ. Garcinia kola and garcinoic acid suppress SARS-CoV-2 spike glycoprotein S1-induced hyper-inflammation in human PBMCs through inhibition of NF-κB activation. Phytother Res 2021; 35:6963-6973. [PMID: 34697842 PMCID: PMC8661957 DOI: 10.1002/ptr.7315] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2021] [Revised: 09/14/2021] [Accepted: 10/11/2021] [Indexed: 12/15/2022]
Abstract
Symptoms and complications associated with severe SARS-CoV-2 infection such as acute respiratory distress syndrome (ARDS) and organ damage have been linked to SARS-CoV-2 spike protein S1-induced increased production of pro-inflammatory cytokines by immune cells. In this study, the effects of an extract of Garcinia kola seeds and garcinoic acid were investigated in SARS-CoV-2 spike protein S1-stimulated human PBMCs. Results of ELISA experiments revealed that Garcinia kola extract (6.25, 12.5, and 25 μg/ml) and garcinoic acid (1.25, 2.5, and 5 μM) significantly reduced SARS-CoV-2 spike protein S1-induced secretion of TNFα, IL-6, IL-1β, and IL-8 in PBMCs. In-cell western assays showed that pre-treatment with Garcinia kola extract and garcinoic acid reduced expressions of both phospho-p65 and phospho-IκBα proteins, as well as NF-κB DNA binding capacity and NF-κB-driven luciferase expression following stimulation of PBMCs with spike protein S1. Furthermore, pre-treatment of PBMCs with Garcinia kola extract prior to stimulation with SARS-CoV-2 spike protein S1 resulted in reduced damage to adjacent A549 lung epithelial cells. These results suggest that the seed of Garcinia kola and garcinoic acid are natural products which may possess pharmacological/therapeutic benefits in reducing cytokine storm in severe SARS-CoV-2 and other coronavirus infections.
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Affiliation(s)
- Olumayokun A Olajide
- Department of Pharmacy, School of Applied Sciences, University of Huddersfield, Huddersfield, UK
| | - Victoria U Iwuanyanwu
- Department of Pharmacy, School of Applied Sciences, University of Huddersfield, Huddersfield, UK
| | - Izabela Lepiarz-Raba
- Department of Pharmacy, School of Applied Sciences, University of Huddersfield, Huddersfield, UK
| | - Alaa A Al-Hindawi
- Department of Pharmacy, School of Applied Sciences, University of Huddersfield, Huddersfield, UK
| | - Mutalib A Aderogba
- Department of Chemistry, Faculty of Science, Obafemi Awolowo University, Ile-Ife, Nigeria
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9
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Neukirch K, Alsabil K, Dinh CP, Bilancia R, Raasch M, Ville A, Cerqua I, Viault G, Bréard D, Pace S, Temml V, Brunner E, Jordan PM, Marques MC, Loeser K, Gollowitzer A, Permann S, Gerstmeier J, Lorkowski S, Stuppner H, Garscha U, Rodrigues T, Bernardes GJL, Schuster D, Séraphin D, Richomme P, Rossi A, Mosig AS, Roviezzo F, Werz O, Helesbeux JJ, Koeberle A. Exploration of Long-Chain Vitamin E Metabolites for the Discovery of a Highly Potent, Orally Effective, and Metabolically Stable 5-LOX Inhibitor that Limits Inflammation. J Med Chem 2021; 64:11496-11526. [PMID: 34279935 PMCID: PMC8365602 DOI: 10.1021/acs.jmedchem.1c00806] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2021] [Indexed: 12/15/2022]
Abstract
Endogenous long-chain metabolites of vitamin E (LCMs) mediate immune functions by targeting 5-lipoxygenase (5-LOX) and increasing the systemic concentrations of resolvin E3, a specialized proresolving lipid mediator. SAR studies on semisynthesized analogues highlight α-amplexichromanol (27a), which allosterically inhibits 5-LOX, being considerably more potent than endogenous LCMs in human primary immune cells and blood. Other enzymes within lipid mediator biosynthesis were not substantially inhibited, except for microsomal prostaglandin E2 synthase-1. Compound 27a is metabolized by sulfation and β-oxidation in human liver-on-chips and exhibits superior metabolic stability in mice over LCMs. Pharmacokinetic studies show distribution of 27a from plasma to the inflamed peritoneal cavity and lung. In parallel, 5-LOX-derived leukotriene levels decrease, and the inflammatory reaction is suppressed in reconstructed human epidermis, murine peritonitis, and experimental asthma in mice. Our study highlights 27a as an orally active, LCM-inspired drug candidate that limits inflammation with superior potency and metabolic stability to the endogenous lead.
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Affiliation(s)
- Konstantin Neukirch
- Michael
Popp Institute and Center for Molecular Biosciences Innsbruck (CMBI), University of Innsbruck, 6020 Innsbruck, Austria
- Department
of Pharmaceutical/Medicinal Chemistry, Institute of Pharmacy, Friedrich Schiller University Jena, 07743 Jena, Germany
| | | | - Chau-Phi Dinh
- Univ
Angers, SONAS, SFR QUASAV, F-49000 Angers, France
| | - Rossella Bilancia
- Department
of Pharmacy, School of Medicine and Surgery, University of Naples Federico II, 80131 Naples, Italy
| | - Martin Raasch
- Institute
of Biochemistry II, Jena University Hospital, 07747 Jena, Germany
| | - Alexia Ville
- Univ
Angers, SONAS, SFR QUASAV, F-49000 Angers, France
| | - Ida Cerqua
- Department
of Pharmacy, School of Medicine and Surgery, University of Naples Federico II, 80131 Naples, Italy
| | | | | | - Simona Pace
- Department
of Pharmaceutical/Medicinal Chemistry, Institute of Pharmacy, Friedrich Schiller University Jena, 07743 Jena, Germany
| | - Veronika Temml
- Department
of Pharmaceutical and Medicinal Chemistry, Paracelsus Medical University Salzburg, 5020 Salzburg, Austria
| | - Elena Brunner
- Department
of Pharmaceutical/Medicinal Chemistry, Institute of Pharmacy, Friedrich Schiller University Jena, 07743 Jena, Germany
| | - Paul M. Jordan
- Department
of Pharmaceutical/Medicinal Chemistry, Institute of Pharmacy, Friedrich Schiller University Jena, 07743 Jena, Germany
| | - Marta C. Marques
- Instituto
de Medicina Molecular João Lobo Antunes, Faculdade de Medicina, Universidade de Lisboa, 1649-028 Lisboa, Portugal
| | - Konstantin Loeser
- Department
of Pharmaceutical/Medicinal Chemistry, Institute of Pharmacy, Friedrich Schiller University Jena, 07743 Jena, Germany
| | - André Gollowitzer
- Michael
Popp Institute and Center for Molecular Biosciences Innsbruck (CMBI), University of Innsbruck, 6020 Innsbruck, Austria
- Department
of Pharmaceutical/Medicinal Chemistry, Institute of Pharmacy, Friedrich Schiller University Jena, 07743 Jena, Germany
| | - Stephan Permann
- Michael
Popp Institute and Center for Molecular Biosciences Innsbruck (CMBI), University of Innsbruck, 6020 Innsbruck, Austria
| | - Jana Gerstmeier
- Department
of Pharmaceutical/Medicinal Chemistry, Institute of Pharmacy, Friedrich Schiller University Jena, 07743 Jena, Germany
| | - Stefan Lorkowski
- Department
of Nutritional Biochemistry and Physiology, Institute of Nutritional
Science and Competence Cluster for Nutrition and Cardiovascular Health
(nutriCARD), Halle-Jena-Leipzig, Friedrich
Schiller University Jena, 07743 Jena, Germany
| | - Hermann Stuppner
- Institute
of Pharmacy/Pharmacognosy and Center for Molecular Biosciences Innsbruck
(CMBI), University of Innsbruck, 6020 Innsbruck, Austria
| | - Ulrike Garscha
- Department
of Pharmaceutical/Medicinal Chemistry, Institute of Pharmacy, University of Greifswald, 17489 Greifswald, Germany
| | - Tiago Rodrigues
- Instituto
de Medicina Molecular João Lobo Antunes, Faculdade de Medicina, Universidade de Lisboa, 1649-028 Lisboa, Portugal
| | - Gonçalo J. L. Bernardes
- Instituto
de Medicina Molecular João Lobo Antunes, Faculdade de Medicina, Universidade de Lisboa, 1649-028 Lisboa, Portugal
- Department of Chemistry, University of
Cambridge, CB2 1EW Cambridge, U.K.
| | - Daniela Schuster
- Department
of Pharmaceutical and Medicinal Chemistry, Paracelsus Medical University Salzburg, 5020 Salzburg, Austria
| | | | | | - Antonietta Rossi
- Department
of Pharmacy, School of Medicine and Surgery, University of Naples Federico II, 80131 Naples, Italy
| | - Alexander S. Mosig
- Institute
of Biochemistry II, Jena University Hospital, 07747 Jena, Germany
| | - Fiorentina Roviezzo
- Department
of Pharmacy, School of Medicine and Surgery, University of Naples Federico II, 80131 Naples, Italy
| | - Oliver Werz
- Department
of Pharmaceutical/Medicinal Chemistry, Institute of Pharmacy, Friedrich Schiller University Jena, 07743 Jena, Germany
| | | | - Andreas Koeberle
- Michael
Popp Institute and Center for Molecular Biosciences Innsbruck (CMBI), University of Innsbruck, 6020 Innsbruck, Austria
- Department
of Pharmaceutical/Medicinal Chemistry, Institute of Pharmacy, Friedrich Schiller University Jena, 07743 Jena, Germany
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10
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Controlled Release of the α-Tocopherol-Derived Metabolite α-13'-Carboxychromanol from Bacterial Nanocellulose Wound Cover Improves Wound Healing. NANOMATERIALS 2021; 11:nano11081939. [PMID: 34443772 PMCID: PMC8398652 DOI: 10.3390/nano11081939] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/21/2021] [Revised: 07/10/2021] [Accepted: 07/12/2021] [Indexed: 01/29/2023]
Abstract
Inflammation is a hallmark of tissue remodeling during wound healing. The inflammatory response to wounds is tightly controlled and well-coordinated; dysregulation compromises wound healing and causes persistent inflammation. Topical application of natural anti-inflammatory products may improve wound healing, in particular under chronic pathological conditions. The long-chain metabolites of vitamin E (LCM) are bioactive molecules that mediate cellular effects via oxidative stress signaling as well as anti-inflammatory pathways. However, the effect of LCM on wound healing has not been investigated. We administered the α-tocopherol-derived LCMs α-13'-hydroxychromanol (α-13'-OH) and α-13'-carboxychromanol (α-13'-COOH) as well as the natural product garcinoic acid, a δ-tocotrienol derivative, in different pharmaceutical formulations directly to wounds using a splinted wound mouse model to investigate their effects on the wounds' proinflammatory microenvironment and wound healing. Garcinoic acid and, in particular, α-13'-COOH accelerated wound healing and quality of the newly formed tissue. We next loaded bacterial nanocellulose (BNC), a valuable nanomaterial used as a wound dressing with high potential for drug delivery, with α-13'-COOH. The controlled release of α-13'-COOH using BNC promoted wound healing and wound closure, mainly when a diabetic condition was induced before the injury. This study highlights the potential of α-13'-COOH combined with BNC as a potential active wound dressing for the advanced therapy of skin injuries.
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Willems S, Gellrich L, Chaikuad A, Kluge S, Werz O, Heering J, Knapp S, Lorkowski S, Schubert-Zsilavecz M, Merk D. Endogenous vitamin E metabolites mediate allosteric PPARγ activation with unprecedented co-regulatory interactions. Cell Chem Biol 2021; 28:1489-1500.e8. [PMID: 33989565 DOI: 10.1016/j.chembiol.2021.04.019] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2020] [Revised: 03/29/2021] [Accepted: 04/23/2021] [Indexed: 02/07/2023]
Abstract
Vitamin E exhibits pharmacological effects beyond established antioxidant activity suggesting involvement of unidentified mechanisms. Here, we characterize endogenously formed tocopherol carboxylates and the vitamin E mimetic garcinoic acid (GA) as activators of the peroxisome proliferator-activated receptor gamma (PPARγ). Co-stimulation of PPARγ with GA and the orthosteric agonist pioglitazone resulted in additive transcriptional activity. In line with this, the PPARγ-GA complex adopted a fully active conformation and interestingly contained two bound GA molecules with one at an allosteric site. A co-regulator interaction scan demonstrated an unanticipated co-factor recruitment profile for GA-bound PPARγ compared with canonical PPARγ agonists and gene expression analysis revealed different effects of GA and pioglitazone on PPAR signaling in hepatocytes. These observations reveal allosteric mechanisms of PPARγ modulation as an alternative avenue to PPARγ targeting and suggest contributions of PPARγ activation by α-13-tocopherolcarboxylate to the pharmacological effects of vitamin E.
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Affiliation(s)
- Sabine Willems
- Institute of Pharmaceutical Chemistry, Goethe University Frankfurt, Frankfurt 60438, Germany
| | - Leonie Gellrich
- Institute of Pharmaceutical Chemistry, Goethe University Frankfurt, Frankfurt 60438, Germany
| | - Apirat Chaikuad
- Institute of Pharmaceutical Chemistry, Goethe University Frankfurt, Frankfurt 60438, Germany; Structural Genomics Consortium, BMLS, Goethe University Frankfurt, Frankfurt 60438, Germany
| | - Stefan Kluge
- Chair of Nutritional Biochemistry and Physiology, Institute of Nutrition, Friedrich-Schiller-University Jena, Jena 07743, Germany; Competence Cluster for Nutrition and Cardiovascular Health (nutriCARD) Halle-Jena-Leipzig, University of Jena, Jena 07743, Germany
| | - Oliver Werz
- Chair of Pharmaceutical/Medicinal Chemistry, Institute of Pharmacy, Friedrich-Schiller-University Jena, Jena 07743, Germany
| | - Jan Heering
- Fraunhofer Institute for Translational Medicine and Pharmacology ITMP, Frankfurt 60596, Germany
| | - Stefan Knapp
- Institute of Pharmaceutical Chemistry, Goethe University Frankfurt, Frankfurt 60438, Germany; Structural Genomics Consortium, BMLS, Goethe University Frankfurt, Frankfurt 60438, Germany
| | - Stefan Lorkowski
- Chair of Nutritional Biochemistry and Physiology, Institute of Nutrition, Friedrich-Schiller-University Jena, Jena 07743, Germany; Competence Cluster for Nutrition and Cardiovascular Health (nutriCARD) Halle-Jena-Leipzig, University of Jena, Jena 07743, Germany
| | | | - Daniel Merk
- Institute of Pharmaceutical Chemistry, Goethe University Frankfurt, Frankfurt 60438, Germany.
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12
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Adewole KE, Ishola AA, Omolaso BO. Identification of potential histone deacetylase inhibitory biflavonoids from Garcinia kola (Guttiferae) using in silico protein-ligand interaction. PHYSICAL SCIENCES REVIEWS 2021. [DOI: 10.1515/psr-2020-0099] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
Overactivity of histone deacetylases (HDACs) is the underlying cause of some cancers, thus, inhibiting their overactivities is a rational treatment option. However, endeavors to employ current anti-HDACs agents in cancer treatment have yielded limited success. Consequently, there is need to explore anti-HDACs natural products, especially from plants sources, because of the intimate relationship plant products and drug discovery have enjoyed over the centuries. To identify possible HDACs inhibitors, Garcinia kola (Guttiferae) seed-derived compounds were screened in silico for HDAC-inhibitory tendencies because of their reported anticancer potentials. Fifteen G. kola-derived compounds and givinostat were docked with five selected HDACs using AutodockVina, while the binding interactions of the compounds with high binding affinities for the five HDACs were viewed with Discovery Studio Visualizer BIOVIA, 2016. Results indicated that four of the compounds studied, including amentoflavone, Garcinia biflavonoid 1, Garcinia biflavonoid 2 and kolaflavanone have higher binding propensity for all the five HDACs relative to givinostat, the standard HDAC inhibitor. This study indicated that inhibition of HDAC might be another key mechanism accountable for the bioactivities of G. kola and its intrinsic compounds. The results from this study implied that the compounds could be further investigated as drugable HDAC inhibitors with potential pharmacological applications in the treatment of cancers.
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Affiliation(s)
- Kayode E. Adewole
- Department of Biochemistry, Faculty of Basic Medical Sciences , University of Medical Sciences , Ondo City , Ondo State , Nigeria
| | - Ahmed A. Ishola
- Central Research Laboratories Limited , University Road , Ilorin , Kwara State , Nigeria
| | - Blessing O. Omolaso
- Department of Physiology, Faculty of Basic Medical Sciences , University of Medical Sciences , Ondo City , Ondo State , Nigeria
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13
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Kluge S, Schubert M, Börmel L, Lorkowski S. The vitamin E long-chain metabolite α-13'-COOH affects macrophage foam cell formation via modulation of the lipoprotein lipase system. Biochim Biophys Acta Mol Cell Biol Lipids 2021; 1866:158875. [PMID: 33421592 DOI: 10.1016/j.bbalip.2021.158875] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2020] [Revised: 12/01/2020] [Accepted: 01/02/2021] [Indexed: 12/14/2022]
Abstract
The α-tocopherol-derived long-chain metabolite (α-LCM) α-13'-carboxychromanol (α-13'-COOH) is formed via enzymatic degradation of α-tocopherol (α-TOH) in the liver. In the last decade, α-13'-COOH has emerged as a new regulatory metabolite revealing more potent or even different effects compared with its vitamin precursor α-TOH. The detection of α-13'-COOH in human serum has further strengthened the concept of its physiological relevance as a potential regulatory molecule. Here, we present a new facet on the interaction of α-13'-COOH with macrophage foam cell formation. We found that α-13'-COOH (5 μM) increases angiopoietin-like 4 (ANGPTL4) mRNA expression in human THP-1 macrophages in a time- and dose-dependent manner, while α-TOH (100 μM) showed no effects. Interestingly, the mRNA level of lipoprotein lipase (LPL) was not influenced by α-13'-COOH, but α-TOH treatment led to a reduction of LPL mRNA expression. Both compounds also revealed different effects on protein level: while α-13'-COOH reduced the secreted amount of LPL protein via induction of ANGPTL4 cleavage, i.e. activation, the secreted amount of LPL in the α-TOH-treated samples was diminished due to the inhibition of mRNA expression. In line with this, both compounds reduced the catalytic activity of LPL. However, α-13'-COOH but not α-TOH attenuated VLDL-induced lipid accumulation by 35%. In conclusion, only α-13'-COOH revealed possible antiatherogenic effects due to the reduction of VLDL-induced foam cell formation in THP-1 macrophages. Our results provide further evidence for the role of α-13'-COOH as a functional metabolite of its vitamin E precursor.
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Affiliation(s)
- Stefan Kluge
- Institute of Nutritional Sciences, Friedrich Schiller University, Jena, Germany
| | - Martin Schubert
- Institute of Nutritional Sciences, Friedrich Schiller University, Jena, Germany
| | - Lisa Börmel
- Institute of Nutritional Sciences, Friedrich Schiller University, Jena, Germany
| | - Stefan Lorkowski
- Institute of Nutritional Sciences, Friedrich Schiller University, Jena, Germany; Competence Cluster for Nutrition and Cardiovascular Health (nutriCARD) Halle-Jena-Leipzig, Germany.
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14
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Gujarathi S, Zafar MK, Liu X, Eoff RL, Zheng G. A Facile Semisynthesis and Evaluation of Garcinoic Acid and Its Analogs for the Inhibition of Human DNA Polymerase β. Molecules 2020; 25:E5847. [PMID: 33322249 PMCID: PMC7763917 DOI: 10.3390/molecules25245847] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2020] [Accepted: 12/09/2020] [Indexed: 11/17/2022] Open
Abstract
Garcinoic acid has been identified as an inhibitor of DNA polymerase β (pol β). However, no structure-activity relationship (SAR) studies of garcinoic acid as a pol β inhibitor have been conducted, in part due to the lack of an efficient synthetic method for this natural product and its analogs. We developed an efficient semi-synthetic method for garcinoic acid and its analogs by starting from natural product δ-tocotrienol. Our preliminary SAR studies provided a valuable insight into future discovery of garcinoic acid-based pol β inhibitors.
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Affiliation(s)
- Satheesh Gujarathi
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA; (S.G.); (X.L.)
| | - Maroof Khan Zafar
- Department of Biochemistry and Molecular Biology, College of Medicine, University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA; (M.K.Z.); (R.L.E.)
| | - Xingui Liu
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA; (S.G.); (X.L.)
| | - Robert L. Eoff
- Department of Biochemistry and Molecular Biology, College of Medicine, University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA; (M.K.Z.); (R.L.E.)
| | - Guangrong Zheng
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA; (S.G.); (X.L.)
- Department of Medicinal Chemistry, College of Pharmacy, University of Florida, Gainesville, FL 32610, USA
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15
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Study on characteristics of biflavanones distribution in Garcinia kola seeds and identification of compounds in gum resin exuded from fresh slices. J Pharm Biomed Anal 2020; 190:113512. [PMID: 32805527 DOI: 10.1016/j.jpba.2020.113512] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2020] [Revised: 07/24/2020] [Accepted: 07/27/2020] [Indexed: 01/06/2023]
Abstract
Garcinia kola seeds play an important role in African traditional medicine, which are widely used to treat stomachache, gastritis, malaria, venereal diseases and laryngitis. The habitats, specification, different parts of seeds and slicing process are important factors that affect the quality of Garcinia kola seeds. Interestingly, brownish yellow or brownish red spots were derived from gum resin exuded during slicing, whose chemical constituents have not been elucidated. A rapid high performance liquid chromatography method was established for quantitative study of four main biflavanones (GB-2, GB-1, kolaflavanone and GB-1a) in Garcinia kola seeds. We found that the content of the tested biflavanones was slightly different in Garcinia kola seeds from different habitats, while the seeds weight showed no obvious influence on the biflavanones content from the same habitat. With the aid of "spider-web" mode, we unveiled that the accumulation of biflavanones mainly occurred in seed kernels. Furthermore, slices thickness (1-2 mm) was optimized by comprehensive evaluation of biflavanones' content, moisture, cutting-time and drying-time to efficiently dry the slices. By employing of ultra-high performance liquid chromatography coupled with electrospray ionization quadrupole Orbitrap high resolution mass spectrometry (UHPLC/ESI Q-Orbitrap MS), garcinoic acid and its derivatives were successfully identified in gum resin, conducing to the interesting finding about the distribution of biflavanones and derivatives of garcinoic acid in Garcinia kola seeds. Generally, our findings in this research could contribute to standardizing the process of harvesting, processing and quality control for Garcinia kola seeds, and help better development and utilization of this important medicinal plant.
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16
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Ziegler M, Wallert M, Lorkowski S, Peter K. Cardiovascular and Metabolic Protection by Vitamin E: A Matter of Treatment Strategy? Antioxidants (Basel) 2020; 9:E935. [PMID: 33003543 PMCID: PMC7600583 DOI: 10.3390/antiox9100935] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2020] [Revised: 09/23/2020] [Accepted: 09/23/2020] [Indexed: 02/06/2023] Open
Abstract
Cardiovascular diseases (CVD) cause about 1/3 of global deaths. Therefore, new strategies for the prevention and treatment of cardiovascular events are highly sought-after. Vitamin E is known for significant antioxidative and anti-inflammatory properties, and has been studied in the prevention of CVD, supported by findings that vitamin E deficiency is associated with increased risk of cardiovascular events. However, randomized controlled trials in humans reveal conflicting and ultimately disappointing results regarding the reduction of cardiovascular events with vitamin E supplementation. As we discuss in detail, this outcome is strongly affected by study design, cohort selection, co-morbidities, genetic variations, age, and gender. For effective chronic primary and secondary prevention by vitamin E, oxidative and inflammatory status might not have been sufficiently antagonized. In contrast, acute administration of vitamin E may be more translatable into positive clinical outcomes. In patients with myocardial infarction (MI), which is associated with severe oxidative and inflammatory reactions, decreased plasma levels of vitamin E have been found. The offsetting of this acute vitamin E deficiency via short-term treatment in MI has shown promising results, and, thus, acute medication, rather than chronic supplementation, with vitamin E might revitalize vitamin E therapy and even provide positive clinical outcomes.
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Affiliation(s)
- Melanie Ziegler
- Department of Cardiology and Angiology, Internal Medicine III, University Clinic of Tübingen, 72076 Tübingen, Germany;
| | - Maria Wallert
- Institute of Nutritional Sciences, Friedrich Schiller University, 07743 Jena, Germany; (M.W.); (S.L.)
- Competence Cluster for Nutrition and Cardiovascular Health (nutriCARD) Halle-Jena-Leipzig, Germany
| | - Stefan Lorkowski
- Institute of Nutritional Sciences, Friedrich Schiller University, 07743 Jena, Germany; (M.W.); (S.L.)
- Competence Cluster for Nutrition and Cardiovascular Health (nutriCARD) Halle-Jena-Leipzig, Germany
| | - Karlheinz Peter
- Atherothrombosis and Vascular Biology Laboratory, Baker Heart and Diabetes Institute, 75 Commercial Road, Melbourne, VIC 3004, Australia
- Department of Medicine and Immunology, Monash University, Melbourne, VIC 3800, Australia
- Department of Cardiometabolic Health, University of Melbourne, Melbourne, VIC 3800, Australia
- Department of Cardiology, The Alfred Hospital, Melbourne, VIC 3800, Australia
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17
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Wallert M, Börmel L, Lorkowski S. Inflammatory Diseases and Vitamin E-What Do We Know and Where Do We Go? Mol Nutr Food Res 2020; 65:e2000097. [PMID: 32692879 DOI: 10.1002/mnfr.202000097] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2020] [Revised: 06/26/2020] [Indexed: 12/14/2022]
Abstract
Inflammation-driven diseases and related comorbidities, such as the metabolic syndrome, obesity, fatty liver disease, and cardiovascular diseases cause significant global burden. There is a growing body of evidence that nutrients alter inflammatory responses and can therefore make a decisive contribution to the treatment of these diseases. Recently, the inflammasome, a cytosolic multiprotein complex, has been identified as a key player in inflammation and the development of various inflammation-mediated disorders, with nucleotide-binding domain and leucine-rich repeat pyrin domain (NLRP) 3 being the inflammasome of interest. Here an overview about the cellular signaling pathways underlying nuclear factor "kappa-light-chain-enhancer" of activated B-cells (NF-κB)- and NLRP3-mediated inflammatory processes, and the pathogenesis of the inflammatory diseases atherosclerosis and non-alcoholic fatty liver disease (NAFLD) is provided; next, the current state of knowledge for drug-based and dietary-based interventions for treating cardiovascular diseases and NAFLD is discussed. To date, one of the most important antioxidants in the human diet is vitamin E. Various in vitro and in vivo studies suggest that the different forms of vitamin E and also their derivatives have anti-inflammatory activity. Recent publications suggest that vitamin E-and possibly metabolites of vitamin E-are a promising therapeutic approach for treating inflammatory diseases such as NAFLD.
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Affiliation(s)
- Maria Wallert
- Department of Nutritional Biochemistry and Physiology, Institute of Nutritional Science, Friedrich Schiller University Jena, Jena, 07743, Germany.,Competence Cluster for Nutrition and Cardiovascular Health (nutriCARD), Halle-Jena-Leipzig, Germany
| | - Lisa Börmel
- Department of Nutritional Biochemistry and Physiology, Institute of Nutritional Science, Friedrich Schiller University Jena, Jena, 07743, Germany.,Competence Cluster for Nutrition and Cardiovascular Health (nutriCARD), Halle-Jena-Leipzig, Germany
| | - Stefan Lorkowski
- Department of Nutritional Biochemistry and Physiology, Institute of Nutritional Science, Friedrich Schiller University Jena, Jena, 07743, Germany.,Competence Cluster for Nutrition and Cardiovascular Health (nutriCARD), Halle-Jena-Leipzig, Germany
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18
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Ha NTT, Van Cuong P, Anh LTT, Tra NT, Cham BT, Son NT. Antimicrobacterial xanthones from Garcinia mackeaniana
leaves. VIETNAM JOURNAL OF CHEMISTRY 2020. [DOI: 10.1002/vjch.2019000183] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- Nguyen Thi Thu Ha
- Institute of Chemistry, Vietnam Academy Science and Technology (VAST); 18, Hoang Quoc Viet, Cau Giay Hanoi 10000 Viet Nam
- Graduate University of Science and Technology, VAST; 18, Hoang Quoc Viet, Cau Giay Hanoi 10000 Viet Nam
| | - Pham Van Cuong
- Institute of Marine Biochemistry, Vietnam Academy Science and Technology (VAST); 18, Hoang Quoc Viet, Cau Giay Hanoi 10000 Viet Nam
| | - Le Thi Tu Anh
- Institute of Chemistry, Vietnam Academy Science and Technology (VAST); 18, Hoang Quoc Viet, Cau Giay Hanoi 10000 Viet Nam
| | - Nguyen Thanh Tra
- Institute of Chemistry, Vietnam Academy Science and Technology (VAST); 18, Hoang Quoc Viet, Cau Giay Hanoi 10000 Viet Nam
- Graduate University of Science and Technology, VAST; 18, Hoang Quoc Viet, Cau Giay Hanoi 10000 Viet Nam
| | - Ba Thi Cham
- Institute of Chemistry, Vietnam Academy Science and Technology (VAST); 18, Hoang Quoc Viet, Cau Giay Hanoi 10000 Viet Nam
| | - Ninh The Son
- Institute of Chemistry, Vietnam Academy Science and Technology (VAST); 18, Hoang Quoc Viet, Cau Giay Hanoi 10000 Viet Nam
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19
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Wallert M, Kluge S, Schubert M, Koeberle A, Werz O, Birringer M, Lorkowski S. Diversity of Chromanol and Chromenol Structures and Functions: An Emerging Class of Anti-Inflammatory and Anti-Carcinogenic Agents. Front Pharmacol 2020; 11:362. [PMID: 32372948 PMCID: PMC7187200 DOI: 10.3389/fphar.2020.00362] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2019] [Accepted: 03/10/2020] [Indexed: 12/31/2022] Open
Abstract
Natural chromanols and chromenols comprise a family of molecules with enormous structural diversity and biological activities of pharmacological interest. A recently published systematic review described more than 230 structures that are derived from a chromanol ortpd chromenol core. For many of these compounds structure-activity relationships have been described with mostly anti-inflammatory as well as anti-carcinogenic activities. To extend the knowledge on the biological activity and the therapeutic potential of these promising class of natural compounds, we here present a report on selected chromanols and chromenols based on the availability of data on signaling pathways involved in inflammation, apoptosis, cell proliferation, and carcinogenesis. The chromanol and chromenol derivatives seem to bind or to interfere with several molecular targets and pathways, including 5-lipoxygenase, nuclear receptors, and the nuclear-factor "kappa-light-chain-enhancer" of activated B-cells (NFκB) pathway. Interestingly, available data suggest that the chromanols and chromenols are promiscuitively acting molecules that inhibit enzyme activities, bind to cellular receptors, and modulate mitochondrial function as well as gene expression. It is also noteworthy that the molecular modes of actions by which the chromanols and chromenols exert their effects strongly depend on the concentrations of the compounds. Thereby, low- and high-affinity molecular targets can be classified. This review summarizes the available knowledge on the biological activity of selected chromanols and chromenols which may represent interesting lead structures for the development of therapeutic anti-inflammatory and chemopreventive approaches.
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Affiliation(s)
- Maria Wallert
- Department of Biochemistry and Physiology of Nutrition, Institute of Nutritional Sciences, Friedrich Schiller University Jena, Jena, Germany
| | - Stefan Kluge
- Department of Biochemistry and Physiology of Nutrition, Institute of Nutritional Sciences, Friedrich Schiller University Jena, Jena, Germany
| | - Martin Schubert
- Department of Biochemistry and Physiology of Nutrition, Institute of Nutritional Sciences, Friedrich Schiller University Jena, Jena, Germany
| | - Andreas Koeberle
- Department of Pharmaceutical/Medicinal Chemistry, Institute of Pharmacy, Friedrich Schiller University Jena, Jena, Germany
- Michael Popp Research Institute, University of Innsbruck, Innsbruck, Austria
| | - Oliver Werz
- Department of Pharmaceutical/Medicinal Chemistry, Institute of Pharmacy, Friedrich Schiller University Jena, Jena, Germany
| | - Marc Birringer
- Department of Nutrition, Food and Consumer Sciences, University of Applied Sciences Fulda, Fulda, Germany
- Regionales Innovationszentrum Gesundheit und Lebensqualität (RIGL), Fulda, Germany
| | - Stefan Lorkowski
- Department of Biochemistry and Physiology of Nutrition, Institute of Nutritional Sciences, Friedrich Schiller University Jena, Jena, Germany
- Competence Center for Nutrition and Cardiovascular Health (nutriCARD) Halle-Jena-Leipzig, Jena, Germany
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20
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Acrocomia aculeata (Jacq.) Lodd. ex Mart. Leaves Increase SIRT1 Levels and Improve Stress Resistance. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2020; 2020:5238650. [PMID: 32256951 PMCID: PMC7085880 DOI: 10.1155/2020/5238650] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/18/2019] [Accepted: 01/20/2020] [Indexed: 12/17/2022]
Abstract
Oxidative stress is a metabolic disorder linked with several chronic diseases, and this condition can be improved by natural antioxidants. The fruit pulp of the palm Acrocomia aculeata (Jacq.) Lodd. ex Mart. is widely used in the treatment of various illnesses, but as far as we know, there are no reports regarding the properties of its leaves. Thus, we aimed to evaluate the antioxidant activity of A. aculeata leaf extracts obtained with water (EA-Aa), ethanol (EE-Aa), and methanol (EM-Aa) solvents. The extracts were chemically characterized, and their antioxidant activity was assessed through the scavenging of the free radicals DPPH and ABTS. EE-Aa and EM-Aa showed the highest amounts of phenolic compounds and free radical scavenging activity. However, EA-Aa was more efficient to protect human erythrocytes against AAPH-induced hemolysis and lipid peroxidation. Thus, we further show the antioxidant effect of EA-Aa in preventing AAPH-induced protein oxidation, H2O2-induced DNA fragmentation, and ROS generation in Cos-7 cells. Increased levels of Sirt1, catalase, and activation of ERK and Nrf2 were observed in Cos-7 treated with EA-Aa. We also verify increased survival in nematodes C. elegans, when induced to the oxidative condition by Juglone. Therefore, our results showed a typical chemical composition of plants for all extracts, but the diversity of compounds presented in EA-Aa is involved in the lower toxicity and antioxidant properties provided to the macromolecules tested, proteins, DNA, and lipids. This protective effect also proven in Cos-7 and in C. elegans was probably due to the activation of the Sirt1/Nrf2 pathway. Altogether, the low toxicity and the antioxidant properties of EA-Aa showed in all the experimental models support its further use in the treatment of oxidative stress-related diseases.
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21
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Bartolini D, De Franco F, Torquato P, Marinelli R, Cerra B, Ronchetti R, Schon A, Fallarino F, De Luca A, Bellezza G, Ferri I, Sidoni A, Walton WG, Pellock SJ, Redinbo MR, Mani S, Pellicciari R, Gioiello A, Galli F. Garcinoic Acid Is a Natural and Selective Agonist of Pregnane X Receptor. J Med Chem 2020; 63:3701-3712. [PMID: 32160459 PMCID: PMC7901650 DOI: 10.1021/acs.jmedchem.0c00012] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
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Pregnane X receptor (PXR) is a master xenobiotic-sensing transcription factor and a
validated target for immune and inflammatory diseases. The identification of chemical
probes to investigate the therapeutic relevance of the receptor is still highly desired.
In fact, currently available PXR ligands are not highly selective and can exhibit
toxicity and/or potential off-target effects. In this study, we have identified
garcinoic acid as a selective and efficient PXR agonist. The properties of this natural
molecule as a specific PXR agonist were demonstrated by the screening on a panel of
nuclear receptors, the assessment of the physical and thermodynamic binding affinity,
and the determination of the PXR-garcinoic acid complex crystal structure. Cytotoxicity,
transcriptional, and functional properties were investigated in human liver cells, and
compound activity and target engagement were confirmed in vivo in mouse liver and gut
tissue. In conclusion, garcinoic acid is a selective natural agonist of PXR and a
promising lead compound toward the development of new PXR-regulating modulators.
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Affiliation(s)
- Desirée Bartolini
- Department of Pharmaceutical Sciences, University of Perugia, Perugia 06122, Italy
| | | | - Pierangelo Torquato
- Department of Pharmaceutical Sciences, University of Perugia, Perugia 06122, Italy
| | - Rita Marinelli
- Department of Pharmaceutical Sciences, University of Perugia, Perugia 06122, Italy
| | - Bruno Cerra
- Department of Pharmaceutical Sciences, University of Perugia, Perugia 06122, Italy
| | - Riccardo Ronchetti
- Department of Pharmaceutical Sciences, University of Perugia, Perugia 06122, Italy
| | - Arne Schon
- The Department of Biology, Johns Hopkins University, Baltimore, Maryland 21218, United States
| | - Francesca Fallarino
- Department of Experimental Medicine, University of Perugia, Perugia 06129, Italy
| | - Antonella De Luca
- Section of Anatomic Pathology and Histology, Department of Experimental Medicine, University of Perugia, Perugia 06129, Italy
| | - Guido Bellezza
- Section of Anatomic Pathology and Histology, Department of Experimental Medicine, University of Perugia, Perugia 06129, Italy
| | - Ivana Ferri
- Section of Anatomic Pathology and Histology, Department of Experimental Medicine, University of Perugia, Perugia 06129, Italy
| | - Angelo Sidoni
- Section of Anatomic Pathology and Histology, Department of Experimental Medicine, University of Perugia, Perugia 06129, Italy
| | - William G Walton
- Department of Chemistry, University of North Carolina, Chapel Hill, North Carolina 27599, United States
| | - Samuel J Pellock
- Department of Chemistry, University of North Carolina, Chapel Hill, North Carolina 27599, United States
| | - Matthew R Redinbo
- Department of Chemistry, University of North Carolina, Chapel Hill, North Carolina 27599, United States
| | - Sridhar Mani
- The Departments of Biochemistry, Medicine, Genetics, and Molecular Pharmacology, Albert Einstein College of Medicine, Bronx, New York 10461, United States
| | | | - Antimo Gioiello
- Department of Pharmaceutical Sciences, University of Perugia, Perugia 06122, Italy
| | - Francesco Galli
- Department of Pharmaceutical Sciences, University of Perugia, Perugia 06122, Italy
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22
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Vitamin E analogues differentially inhibit human cytochrome P450 3A (CYP3A)-mediated oxidative metabolism of lithocholic acid: Impact of δ-tocotrienol on lithocholic acid cytotoxicity. Toxicology 2019; 423:62-74. [PMID: 31102695 DOI: 10.1016/j.tox.2019.05.005] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2019] [Revised: 05/01/2019] [Accepted: 05/13/2019] [Indexed: 11/23/2022]
Abstract
Lithocholic acid is a cytotoxic bile acid oxidized at the C-3 position by human cytochrome P450 3A (CYP3A) to form 3-ketocholanoic acid, but it is not known whether this metabolite is cytotoxic. Tocotrienols, in their various isomeric forms, are vitamin E analogues. In the present study, the hypothesis to be tested is that tocotrienols inhibit CYP3A-catalyzed lithocholic acid 3-oxidation, thereby influencing lithocholic acid cytotoxicity. Our enzyme catalysis experiments indicated that human recombinant CYP3A5 in addition to CYP3A4, liver microsomes, and intestinal microsomes catalyzed lithocholic acid 3-oxidation to form 3-ketocholanoic acid. Liver microsomes with the CYP3A5*1/*3 and CYP3A5*3/*3 genotypes were associated with decreased lithocholic acid 3-oxidation. α-Tocotrienol, γ-tocotrienol, δ-tocotrienol, and a tocotrienol-rich vitamin E mixture, but not α-tocopherol (a vitamin E analogue), differentially inhibited lithocholic acid 3-oxidation catalyzed by liver and intestinal microsomes and recombinant CYP3A4 and CYP3A5. Compared to lithocholic acid 3-oxidation, CYP3A-catalyzed testosterone 6β-hydroxylation was inhibited to a lesser extent by α-tocotrienol, γ-tocotrienol, δ-tocotrienol, and a tocotrienol-rich vitamin E mixture. δ-Tocotrienol inhibited lithocholic acid 3-oxidation by a mixed mode. Like lithocholic acid, 3-ketocholanoic acid was also cytotoxic in human intestinal and liver cell models. δ-Tocotrienol decreased the extent of lithocholic acid 3-oxidation and this inhibition was associated with enhanced cytotoxicity in LS180 cells treated with δ-tocotrienol and lithocholic acid. Overall, vitamin E analogues inhibited in vitro lithocholic acid 3-oxidation in an isomer-dependent manner, with inhibition occurring with tocotrienols, but not α-tocopherol. The enhanced lithocholic acid toxicity by δ-tocotrienol in a human intestinal cell model warrants future investigations in vivo.
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Azzi A. Tocopherols, tocotrienols and tocomonoenols: Many similar molecules but only one vitamin E. Redox Biol 2019; 26:101259. [PMID: 31254734 PMCID: PMC6604160 DOI: 10.1016/j.redox.2019.101259] [Citation(s) in RCA: 72] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2019] [Revised: 06/11/2019] [Accepted: 06/16/2019] [Indexed: 11/20/2022] Open
Abstract
The aim of this article is to correct a very general error in scientific articles, in textbooks and in the Internet that has become an accepted fact. In this literature, the term "vitamin E″ is used for several similar molecules (both tocopherols and tocotrienols) that have never been shown to have vitamin property, i.e. a protective effect against the human deficiency disease. In fact, the name "vitamin E″ should only be used to define molecules that prevent the human deficiency disease "Ataxia with Vitamin E Deficiency" (AVED). Only one such molecule is known, α-tocopherol. This error may confuse consumers as well as medical doctors, who prescribe vitamin E without realizing that the current use of the name includes molecules of unknown, if not unwanted functions.
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Affiliation(s)
- Angelo Azzi
- Sackler School of Graduate Biomedical Pharmacology and Drug Development Program, Tufts University, 75 Kneeland Street, Boston, MA, 02111, USA.
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