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Turck D, Bohn T, Castenmiller J, De Henauw S, Hirsch‐Ernst KI, Maciuk A, Mangelsdorf I, McArdle HJ, Naska A, Pentieva K, Siani A, Thies F, Tsabouri S, Vinceti M, Aguilera‐Gómez M, Cubadda F, Frenzel T, Heinonen M, Prieto Maradona M, Neuhäuser‐Berthold M, Poulsen M, Schlatter JR, Siskos A, van Loveren H, Glymenaki M, Kouloura E, Knutsen HK. Safety of ashitaba sap as a Novel food pursuant to Regulation (EU) 2015/2283. EFSA J 2024; 22:e8645. [PMID: 38469361 PMCID: PMC10926279 DOI: 10.2903/j.efsa.2024.8645] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/13/2024] Open
Abstract
Following a request from the European Commission, the EFSA Panel on Nutrition, Novel Foods and Food Allergens (NDA) was asked to deliver an opinion on ashitaba sap as a novel food (NF) pursuant to Regulation (EU) 2015/2283. Ashitaba sap is collected from harvested stems of Angelica keiskei plants. The principal constituents of the sap with regard to the safety assessment are chalcones (1%-2.25%) and furanocoumarins (< 0.01%). The applicant proposed to use the NF in food supplements at a maximum dose of 780 mg per day. The target population is adults excluding pregnant and lactating women. Taking into consideration the composition of the NF and the proposed uses, the composition of the NF is not nutritionally disadvantageous. There are no concerns regarding genotoxicity of the NF. Based on a 90-day oral toxicity study performed with the product as intended to be placed on the market (30% ashitaba sap powder and 70% cyclodextrins), the Panel establishes a safe dose of 0.5 mg/kg body weight (bw) per day for the product as it is intended to be placed on the market. For the target population, i.e. adults, this safe dose corresponds to 35 mg per day of the product as it is intended to be placed on the market and 137 mg per day of the NF, which is lower than the use level proposed by the applicant. The Panel concludes that the NF is safe for the target population at intake levels up to 137 mg per day.
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Turck D, Bohn T, Castenmiller J, De Henauw S, Hirsch‐Ernst KI, Maciuk A, Mangelsdorf I, McArdle HJ, Naska A, Pelaez C, Pentieva K, Siani A, Thies F, Tsabouri S, Vinceti M, Aguilera‐Gómez M, Cubadda F, Frenzel T, Heinonen M, Prieto Maradona M, Marchelli R, Neuhäuser‐Berthold M, Poulsen M, Schlatter JR, van Loveren H, Kouloura E, Knutsen HK. Safety of water lentil protein concentrate from a mixture of Lemna gibba and Lemna minor as a novel food pursuant to Regulation (EU) 2015/2283. EFSA J 2023; 21:e07903. [PMID: 37077296 PMCID: PMC10108600 DOI: 10.2903/j.efsa.2023.7903] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/21/2023] Open
Abstract
Following a request from the European Commission, the EFSA Panel on Nutrition, Novel Foods and Food Allergens (NDA) was asked to deliver an opinion on water lentil protein concentrate from a mixture of Lemna gibba and Lemna minor as a novel food (NF) pursuant to Regulation (EU) 2015/2283. Water lentil protein concentrate is produced from two water lentil species (L. gibba and L. minor) by separation of the protein fraction of the plant material from fibres, followed by pasteurisation and spray drying. The NF consists mainly of protein, fibre, fat and ash. The applicant proposed to use the NF as a food ingredient in a variety of food categories and as a food supplement. The target population is the general population when used as a food ingredient and exclusively adults when used as a food supplement. The Panel considers that taking into account the composition of the NF and the proposed conditions of use, the consumption of the NF is not nutritionally disadvantageous. There are no concerns regarding genotoxicity of the NF. The Panel considers that the risk of the NF triggering allergic reactions is low. The Panel concludes that the NF, water lentil protein concentrate from a mixture of L. gibba and L. minor, is safe under the proposed conditions of use.
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Turck D, Bohn T, Castenmiller J, De Henauw S, Hirsch‐Ernst KI, Maciuk A, Mangelsdorf I, McArdle HJ, Naska A, Pelaez C, Pentieva K, Siani A, Thies F, Tsabouri S, Vinceti M, Cubadda F, Frenzel T, Heinonen M, Prieto Maradona M, Marchelli R, Neuhäuser‐Berthold M, Poulsen M, Schlatter JR, van Loveren H, Kouloura E, Knutsen HK. Safety of Lemna minor and Lemna gibba whole plant material as a novel food pursuant to Regulation (EU) 2015/2283. EFSA J 2022; 20:e07598. [DOI: 10.2903/j.efsa.2022.7598] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2022] Open
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Turck D, Bohn T, Castenmiller J, De Henauw S, Hirsch‐Ernst KI, Maciuk A, Mangelsdorf I, McArdle HJ, Naska A, Pelaez C, Pentieva K, Siani A, Thies F, Tsabouri S, Vinceti M, Cubadda F, Frenzel T, Heinonen M, Marchelli R, Neuhäuser‐Berthold M, Poulsen M, Prieto Maradona M, Schlatter JR, Trezza V, van Loveren H, Albert O, Dumas C, Germini A, Gelbmann W, Kass G, Kouloura E, Noriega Fernandez E, Rossi A, Knutsen HK. Statement on safety of cannabidiol as a novel food: data gaps and uncertainties. EFSA J 2022; 20:e07322. [PMID: 35686177 PMCID: PMC9172591 DOI: 10.2903/j.efsa.2022.7322] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023] Open
Abstract
The European Commission has determined that cannabidiol (CBD) can be considered as a novel food (NF), and currently, 19 applications are under assessment at EFSA. While assessing these, it has become clear that there are knowledge gaps that need to be addressed before a conclusion on the safety of CBD can be reached. Consequently, EFSA has issued this statement, summarising the state of knowledge on the safety of CBD consumption and highlighting areas where more data are needed. Literature searches for both animal and human studies have been conducted to identify safety concerns. Many human studies have been carried out with Epidyolex®, a CBD drug authorised to treat refractory epilepsies. In the context of medical conditions, adverse effects are tolerated if the benefit outweighs the adverse effect. This is, however, not acceptable when considering CBD as a NF. Furthermore, most of the human data referred to in the CBD applications investigated the efficacy of Epidyolex (or CBD) at therapeutic doses. No NOAEL could be identified from these studies. Given the complexity and importance of CBD receptors and pathways, interactions need to be taken into account when considering CBD as a NF. The effects on drug metabolism need to be clarified. Toxicokinetics in different matrices, the half‐life and accumulation need to be examined. The effect of CBD on liver, gastrointestinal tract, endocrine system, nervous system and on psychological function needs to be clarified. Studies in animals show significant reproductive toxicity, and the extent to which this occurs in humans generally and in women of child‐bearing age specifically needs to be assessed. Considering the significant uncertainties and data gaps, the Panel concludes that the safety of CBD as a NF cannot currently be established.
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Turck D, Bohn T, Castenmiller J, De Henauw S, Hirsch‐Ernst KI, Maciuk A, Mangelsdorf I, McArdle HJ, Naska A, Pelaez C, Pentieva K, Siani A, Thies F, Tsabouri S, Vinceti M, Cubadda F, Frenzel T, Heinonen M, Marchelli R, Neuhäuser‐Berthold M, Poulsen M, Prieto Maradona M, Schlatter JR, van Loveren H, Ackerl R, Kouloura E, Knutsen HK. Safety of tetrahydrocurcuminoids from turmeric ( Curcuma longa L.) as a novel food pursuant to Regulation (EU) 2015/2283. EFSA J 2021; 19:e06936. [PMID: 34987620 PMCID: PMC8693248 DOI: 10.2903/j.efsa.2021.6936] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
Abstract
Following a request from the European Commission, the EFSA Panel on Nutrition, Novel Foods and Food Allergens (NDA) was asked to deliver an opinion on tetrahydrocurcuminoids from turmeric (Curcuma longa L.) as a novel food (NF) pursuant to Regulation (EU) 2015/2283. Tetrahydrocurcuminoids are derivatives of curcuminoids, produced chemically by hydrogenation of curcuminoids extracted from the rhizomes of C. longa L. The NF consists of more than 95% of tetrahydrocurcuminoids. The applicant proposed to use the NF in food supplements at a maximum dose of 300 mg/day for adults excluding pregnant and lactating women. Taking into account the composition of the NF and the proposed conditions of use, consumption of the NF is not nutritionally disadvantageous. There are no concerns regarding genotoxicity of the NF. Based on a 90-day oral toxicity study and a reproduction/developmental toxicity screening test performed with the NF, the Panel derives a safe level of 2 mg/kg body weight per day. For the target population this level corresponds to 140 mg/day, which is lower than the use level as proposed by the applicant. The Panel concludes that the NF, tetrahydrocurcuminoids from turmeric (C. longa L.), is safe for the target population at 140 mg/day.
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Turck D, Bohn T, Castenmiller J, De Henauw S, Hirsch‐Ernst KI, Maciuk A, Mangelsdorf I, McArdle HJ, Naska A, Pelaez C, Pentieva K, Siani A, Thies F, Tsabouri S, Vinceti M, Cubadda F, Frenzel T, Heinonen M, Maradona MP, Marchelli R, Neuhäuser‐Berthold M, Poulsen M, Schlatter JR, van Loveren H, Kouloura E, Knutsen HK. Safety of Wolffia globosa powder as a Novel food pursuant to Regulation (EU) 2015/2283. EFSA J 2021; 19:e06938. [PMID: 34987622 PMCID: PMC8693246 DOI: 10.2903/j.efsa.2021.6938] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
Abstract
Following a request from the European Commission, the EFSA Panel on Nutrition, Novel Foods and Food Allergens (NDA) was asked to deliver an opinion on Wolffia globosa powder as a novel food (NF) pursuant to Regulation (EU) 2015/2283. Wolffia globosa is an aquatic plant, one out of the 38 species of the water lentil family which is composed by five genera (i.e. Spirodela, Landoltia, Lemna, Wolffiella and Wolffia). The NF is produced by cultivation of Wolffia globosa plants under controlled conditions, washing with hot water and drying. The main constituents of the NF are protein, fibre and fat. The Panel notes that the concentration of trace elements and contaminants in the NF is highly dependent on the conditions of cultivation of the plant and the fertiliser composition. The NF is intended to be used as food ingredient in a variety of food categories and as food supplement. The target population is the general population except for food supplements which are intended to be consumed exclusively by adults. The Panel considers that with the exception of concerns related to the manganese intake, taking into account the composition of the NF and the proposed conditions of use, the consumption of the NF is not nutritionally disadvantageous. The subchronic toxicity study provided with the NF revealed a number of significant findings and the Panel considers the middle dose (6.5 g/kg body weight (bw) per day) as the no observed adverse effect level (NOAEL). Based on the protein concentration, the Panel considers that the consumption of the NF may trigger allergic reactions. The Panel concluded that an increase in manganese intake from the NF used as food ingredient or food supplements is of safety concern and the safety of the NF cannot be established.
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Turck D, Bohn T, Castenmiller J, De Henauw S, Hirsch‐Ernst KI, Maciuk A, Mangelsdorf I, McArdle HJ, Naska A, Pelaez C, Pentieva K, Siani A, Thies F, Tsabouri S, Vinceti M, Cubadda F, Frenzel T, Heinonen M, Prieto Maradona M, Marchelli R, Neuhäuser‐Berthold M, Poulsen M, Schlatter JR, van Loveren H, Kouloura E, Steinkellner H, Knutsen HK. Safety of water lentil powder from Lemnaceae as a Novel Food pursuant to Regulation (EU) 2015/2283. EFSA J 2021; 19:e06845. [PMID: 34815779 PMCID: PMC8591451 DOI: 10.2903/j.efsa.2021.6845] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Following a request from the European Commission, the EFSA Panel on Nutrition, Novel Foods and Food Allergens (NDA) was asked to deliver an opinion on the safety of water lentil powder as a novel food (NF) pursuant to Regulation (EU) 2015/2283. Water lentils refer to aquatic plants belonging to the Araceae family and represented by five genera (Lemna, Wolffia, Wolffiella, Landoltia and Spirodela). The NF is thermally washed and dried water lentils, which are produced as a polyculture crop consisting of species from the Lemna genus (70-100%) and the Wolffia genus (0-30%). The main constituents of the NF are protein, fibre and fat. The Panel notes that the concentration of trace elements and contaminants in the NF is highly dependent on the conditions of cultivation of the plant and the fertiliser composition. The NF is expected to be stable and to comply with the specifications during the suggested shelf life. The NF is intended for human consumption as a food ingredient in herbs, spices and seasonings, sauces, soups and broths, protein products, dietary food for weight control and as a food supplement. The target population is the general population, except for food supplements which are exclusively intended for consumption by adults. The Panel considers that based on the composition of the NF and the proposed intended uses, the NF is not nutritionally disadvantageous, except for the concerns regarding intake of manganese from the NF. No adverse effect was observed in the submitted 90-day subchronic study, at the highest dose, 1,000 mg/kg body weight (bw) per day of NF. The Panel considers that, based on the protein concentration, the consumption of the NF may trigger allergic reactions. The Panel concluded that an increase in manganese intake from the NF used as food ingredient or food supplements is of safety concern and the safety of the NF cannot be established.
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Dossus L, Kouloura E, Biessy C, Viallon V, Siskos AP, Dimou N, Rinaldi S, Merritt MA, Allen N, Fortner R, Kaaks R, Weiderpass E, Gram IT, Rothwell JA, Lécuyer L, Severi G, Schulze MB, Nøst TH, Crous-Bou M, Sánchez MJ, Amiano P, Colorado-Yohar SM, Gurrea AB, Schmidt JA, Palli D, Agnoli C, Tumino R, Sacerdote C, Mattiello A, Vermeulen R, Heath AK, Christakoudi S, Tsilidis KK, Travis RC, Gunter MJ, Keun HC. Prospective analysis of circulating metabolites and endometrial cancer risk. Gynecol Oncol 2021; 162:475-481. [PMID: 34099314 PMCID: PMC8336647 DOI: 10.1016/j.ygyno.2021.06.001] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2021] [Accepted: 06/01/2021] [Indexed: 12/24/2022]
Abstract
BACKGROUND Endometrial cancer is strongly associated with obesity and dysregulation of metabolic factors such as estrogen and insulin signaling are causal risk factors for this malignancy. To identify additional novel metabolic pathways associated with endometrial cancer we performed metabolomic analyses on pre-diagnostic plasma samples from 853 case-control pairs from the European Prospective Investigation into Cancer and Nutrition (EPIC). METHODS A total of 129 metabolites (acylcarnitines, amino acids, biogenic amines, glycerophospholipids, hexoses, and sphingolipids) were measured by liquid chromatography-mass spectrometry. Conditional logistic regression estimated the associations of metabolites with endometrial cancer risk. An analysis focusing on clusters of metabolites using the bootstrap lasso method was also employed. RESULTS After adjustment for body mass index, sphingomyelin [SM] C18:0 was positively (OR1SD: 1.18, 95% CI: 1.05-1.33), and glycine, serine, and free carnitine (C0) were inversely (OR1SD: 0.89, 95% CI: 0.80-0.99; OR1SD: 0.89, 95% CI: 0.79-1.00 and OR1SD: 0.91, 95% CI: 0.81-1.00, respectively) associated with endometrial cancer risk. Serine, C0 and two sphingomyelins were selected by the lasso method in >90% of the bootstrap samples. The ratio of esterified to free carnitine (OR1SD: 1.14, 95% CI: 1.02-1.28) and that of short chain to free acylcarnitines (OR1SD: 1.12, 95% CI: 1.00-1.25) were positively associated with endometrial cancer risk. Further adjustment for C-peptide or other endometrial cancer risk factors only minimally altered the results. CONCLUSION These findings suggest that variation in levels of glycine, serine, SM C18:0 and free carnitine may represent specific pathways linked to endometrial cancer development. If causal, these pathways may offer novel targets for endometrial cancer prevention.
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Affiliation(s)
- Laure Dossus
- Nutrition and Metabolism Section, International Agency for Research on Cancer, Lyon, France.
| | - Eirini Kouloura
- Cancer Metabolism and Systems Toxicology Group, Division of Cancer, Department of Surgery and Cancer, Imperial College, London, UK; European Food Safety Authority, Via Carlo Magno 1A, 43126 Parma, Italy
| | - Carine Biessy
- Nutrition and Metabolism Section, International Agency for Research on Cancer, Lyon, France
| | - Vivian Viallon
- Nutrition and Metabolism Section, International Agency for Research on Cancer, Lyon, France
| | - Alexandros P Siskos
- Cancer Metabolism and Systems Toxicology Group, Division of Cancer, Department of Surgery and Cancer, Imperial College, London, UK
| | - Niki Dimou
- Nutrition and Metabolism Section, International Agency for Research on Cancer, Lyon, France
| | - Sabina Rinaldi
- Nutrition and Metabolism Section, International Agency for Research on Cancer, Lyon, France
| | - Melissa A Merritt
- Cancer Epidemiology Program, University of Hawaii Cancer Center, Honolulu, HI, USA
| | - Naomi Allen
- Nuffield Department of Population Health, University of Oxford, Oxford, UK
| | - Renee Fortner
- Division of Cancer Epidemiology, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Rudolf Kaaks
- Division of Cancer Epidemiology, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Elisabete Weiderpass
- Office of the Director, International Agency for Research on Cancer, Lyon, France
| | - Inger T Gram
- Department of Community Medicine, Faculty of Health Sciences, University of Tromsø, The Arctic University of Norway, Troms, Norway
| | - Joseph A Rothwell
- Centre for Research in Epidemiology and Population Health, CESP, Université Paris-Saclay, UVSQ, Inserm U1018, Villejuif, France; Gustave Roussy, Villejuif, France
| | - Lucie Lécuyer
- Centre for Research in Epidemiology and Population Health, CESP, Université Paris-Saclay, UVSQ, Inserm U1018, Villejuif, France; Gustave Roussy, Villejuif, France
| | - Gianluca Severi
- Centre for Research in Epidemiology and Population Health, CESP, Université Paris-Saclay, UVSQ, Inserm U1018, Villejuif, France; Gustave Roussy, Villejuif, France; Department of Statistics, Computer Science and Applications "G. Parenti" (DISIA), University of Florence, Italy
| | - Matthias B Schulze
- Department of Molecular Epidemiology, German Institute of Human Nutrition Potsdam-Rehbruecke, Nuthetal, Germany; Institute of Nutritional Science, University of Potsdam, Potsdam, Germany
| | - Therese Haugdahl Nøst
- Department of Community Medicine, Faculty of Health Sciences, University of Tromsø, The Arctic University of Norway, Troms, Norway
| | - Marta Crous-Bou
- Unit of Nutrition and Cancer, Cancer Epidemiology Research Program, Catalan Institute of Oncology (ICO), Barcelona, Spain; Nutrition and Cancer Group, Bellvitge Biomedical Research Institute (IDIBELL), Barcelona, Spain; Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston,USA
| | - Maria-Jose Sánchez
- Escuela Andaluza de Salud Pública (EASP), Granada, Spain; Instituto de Investigación Biosanitaria ibs.GRANADA, Granada, Spain; Centro de Investigación Biomédica en Red de Epidemiología y Salud Pública (CIBERESP), Madrid, Spain; Department of Preventive Medicine and Public Health, University of Granada, Granada, Spain
| | - Pilar Amiano
- Centro de Investigación Biomédica en Red de Epidemiología y Salud Pública (CIBERESP), Madrid, Spain; Public Health Division of Gipuzkoa, BioDonostia Research Institute, Donostia-San Sebastian, Spain
| | - Sandra M Colorado-Yohar
- Centro de Investigación Biomédica en Red de Epidemiología y Salud Pública (CIBERESP), Madrid, Spain; Department of Epidemiology, Murcia Regional Health Council, IMIB-Arrixaca, Murcia, Spain; Research Group on Demography and Health, National Faculty of Public Health, University of Antioquia, Medellín, Colombia
| | - Aurelio Barricarte Gurrea
- Centro de Investigación Biomédica en Red de Epidemiología y Salud Pública (CIBERESP), Madrid, Spain; Navarra Public Health Institute, Pamplona, Spain; Navarra Institute for Health Research (IdiSNA) Pamplona, Spain
| | - Julie A Schmidt
- Cancer Epidemiology Unit, Nuffield Department of Population Health, University of Oxford, Oxford, UK
| | - Domenico Palli
- Institute for Cancer Research, Prevention and Clinical Network - ISPRO, Cancer Risk Factors and Life-Style Epidemiology Unit, Florence, Italy
| | - Claudia Agnoli
- Epidemiology and Prevention Unit, Fondazione IRCCS Istituto Nazionale dei Tumori di Milano, Milano, Italy
| | - Rosario Tumino
- Cancer Registry and Histopathology Department, Provincial Health Authority (ASP) Ragusa, Italy
| | - Carlotta Sacerdote
- Unit of Cancer Epidemiology, Città della Salute e della Scienza University-Hospital and Center for Cancer Prevention (CPO), Turin, Italy
| | - Amalia Mattiello
- Dipartimento di Medicina Clinica e Chirurgia, Federico II University, Naples, Italy
| | - Roel Vermeulen
- Institute for Risk Assessment Sciences, Utrecht University, Utrecht, the Netherlands
| | - Alicia K Heath
- Department of Epidemiology and Biostatistics, School of Public Health, Imperial College London, London, UK
| | - Sofia Christakoudi
- Department of Epidemiology and Biostatistics, School of Public Health, Imperial College London, London, UK; MRC Centre for Transplantation, King's College London, London, UK
| | - Konstantinos K Tsilidis
- Department of Epidemiology and Biostatistics, School of Public Health, Imperial College London, London, UK; Department of Hygiene and Epidemiology, University of Ioannina School of Medicine, Ioannina, Greece
| | - Ruth C Travis
- Cancer Epidemiology Unit, Nuffield Department of Population Health, University of Oxford, Oxford, UK
| | - Marc J Gunter
- Nutrition and Metabolism Section, International Agency for Research on Cancer, Lyon, France
| | - Hector C Keun
- Cancer Metabolism and Systems Toxicology Group, Division of Cancer, Department of Surgery and Cancer, Imperial College, London, UK
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Allen SP, Hall B, Castelli LM, Francis L, Woof R, Siskos AP, Kouloura E, Gray E, Thompson AG, Talbot K, Higginbottom A, Myszczynska M, Allen CF, Stopford MJ, Hemingway J, Bauer CS, Webster CP, De Vos KJ, Turner MR, Keun HC, Hautbergue GM, Ferraiuolo L, Shaw PJ. Astrocyte adenosine deaminase loss increases motor neuron toxicity in amyotrophic lateral sclerosis. Brain 2020; 142:586-605. [PMID: 30698736 PMCID: PMC6391613 DOI: 10.1093/brain/awy353] [Citation(s) in RCA: 67] [Impact Index Per Article: 16.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2018] [Revised: 10/25/2018] [Accepted: 11/22/2018] [Indexed: 12/12/2022] Open
Abstract
As clinical evidence supports a negative impact of dysfunctional energy metabolism on the disease progression in amyotrophic lateral sclerosis, it is vital to understand how the energy metabolic pathways are altered and whether they can be restored to slow disease progression. Possible approaches include increasing or rerouting catabolism of alternative fuel sources to supplement the glycolytic and mitochondrial pathways such as glycogen, ketone bodies and nucleosides. To analyse the basis of the catabolic defect in amyotrophic lateral sclerosis we used a novel phenotypic metabolic array. We profiled fibroblasts and induced neuronal progenitor-derived human induced astrocytes from C9orf72 amyotrophic lateral sclerosis patients compared to normal controls, measuring the rates of production of reduced nicotinamide adenine dinucleotides from 91 potential energy substrates. This approach shows for the first time that C9orf72 human induced astrocytes and fibroblasts have an adenosine to inosine deamination defect caused by reduction of adenosine deaminase, which is also observed in induced astrocytes from sporadic patients. Patient-derived induced astrocyte lines were more susceptible to adenosine-induced toxicity, which could be mimicked by inhibiting adenosine deaminase in control lines. Furthermore, adenosine deaminase inhibition in control induced astrocytes led to increased motor neuron toxicity in co-cultures, similar to the levels observed with patient derived induced astrocytes. Bypassing metabolically the adenosine deaminase defect by inosine supplementation was beneficial bioenergetically in vitro, increasing glycolytic energy output and leading to an increase in motor neuron survival in co-cultures with induced astrocytes. Inosine supplementation, in combination with modulation of the level of adenosine deaminase may represent a beneficial therapeutic approach to evaluate in patients with amyotrophic lateral sclerosis.
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Affiliation(s)
- Scott P Allen
- Sheffield Institute for Translational Neuroscience (SITraN), University of Sheffield, 385 Glossop Road, Sheffield, UK
- Correspondence to: Dr Scott Allen Sheffield Institute for Translational Neuroscience (SITraN), University of Sheffield, 385 Glossop Road, Sheffield S10 2HQ, UK E-mail:
| | - Benjamin Hall
- Sheffield Institute for Translational Neuroscience (SITraN), University of Sheffield, 385 Glossop Road, Sheffield, UK
| | - Lydia M Castelli
- Sheffield Institute for Translational Neuroscience (SITraN), University of Sheffield, 385 Glossop Road, Sheffield, UK
| | - Laura Francis
- The Living Systems Institute, University of Exeter, Stocker Road, Exeter, UK
| | - Ryan Woof
- Sheffield Institute for Translational Neuroscience (SITraN), University of Sheffield, 385 Glossop Road, Sheffield, UK
| | - Alexandros P Siskos
- Department of Surgery and Cancer, Imperial College London, Hammersmith Hospital Campus, London, UK
| | - Eirini Kouloura
- Department of Surgery and Cancer, Imperial College London, Hammersmith Hospital Campus, London, UK
| | - Elizabeth Gray
- Nuffield Department of Clinical Neurosciences, Oxford University, John Radcliffe Hospital, West Wing Level 6, Oxford, UK
| | - Alexander G Thompson
- Nuffield Department of Clinical Neurosciences, Oxford University, John Radcliffe Hospital, West Wing Level 6, Oxford, UK
| | - Kevin Talbot
- Nuffield Department of Clinical Neurosciences, Oxford University, John Radcliffe Hospital, West Wing Level 6, Oxford, UK
| | - Adrian Higginbottom
- Sheffield Institute for Translational Neuroscience (SITraN), University of Sheffield, 385 Glossop Road, Sheffield, UK
| | - Monika Myszczynska
- Sheffield Institute for Translational Neuroscience (SITraN), University of Sheffield, 385 Glossop Road, Sheffield, UK
| | - Chloe F Allen
- Sheffield Institute for Translational Neuroscience (SITraN), University of Sheffield, 385 Glossop Road, Sheffield, UK
| | - Matthew J Stopford
- Sheffield Institute for Translational Neuroscience (SITraN), University of Sheffield, 385 Glossop Road, Sheffield, UK
| | - Jordan Hemingway
- Sheffield Institute for Translational Neuroscience (SITraN), University of Sheffield, 385 Glossop Road, Sheffield, UK
| | - Claudia S Bauer
- Sheffield Institute for Translational Neuroscience (SITraN), University of Sheffield, 385 Glossop Road, Sheffield, UK
| | - Christopher P Webster
- Sheffield Institute for Translational Neuroscience (SITraN), University of Sheffield, 385 Glossop Road, Sheffield, UK
| | - Kurt J De Vos
- Sheffield Institute for Translational Neuroscience (SITraN), University of Sheffield, 385 Glossop Road, Sheffield, UK
| | - Martin R Turner
- Nuffield Department of Clinical Neurosciences, Oxford University, John Radcliffe Hospital, West Wing Level 6, Oxford, UK
| | - Hector C Keun
- Department of Surgery and Cancer, Imperial College London, Hammersmith Hospital Campus, London, UK
| | - Guillaume M Hautbergue
- Sheffield Institute for Translational Neuroscience (SITraN), University of Sheffield, 385 Glossop Road, Sheffield, UK
| | - Laura Ferraiuolo
- Sheffield Institute for Translational Neuroscience (SITraN), University of Sheffield, 385 Glossop Road, Sheffield, UK
| | - Pamela J Shaw
- Sheffield Institute for Translational Neuroscience (SITraN), University of Sheffield, 385 Glossop Road, Sheffield, UK
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10
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Svouraki A, Garscha U, Kouloura E, Pace S, Pergola C, Krauth V, Rossi A, Sautebin L, Halabalaki M, Werz O, Gaboriaud-Kolar N, Skaltsounis AL. Evaluation of Dual 5-Lipoxygenase/Microsomal Prostaglandin E2 Synthase-1 Inhibitory Effect of Natural and Synthetic Acronychia-Type Isoprenylated Acetophenones. J Nat Prod 2017; 80:699-706. [PMID: 28240894 DOI: 10.1021/acs.jnatprod.6b01008] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Among the pathways responsible for the development of inflammatory responses, the cyclooxygenase and lipoxygenase pathways are among the most important ones. Two key enzymes, namely, 5-LO and mPGES-1, are involved in the biosynthesis of leukotrienes and prostaglandins, respectively, which are considered attractive therapeutic targets, so their dual inhibition might be an effective strategy to control inflammatory deregulation. Several natural products have been identified as 5-LO inhibitors, with some also being dual 5-LO/mPGES-1 inhibitors. Here, some prenylated acetophenone dimers from Acronychia pedunculata have been identified for their dual inhibitory potency toward 5-LO and mPGES-1. To gain insight into the SAR of this family of natural products, the synthesis and biological evaluation of analogues are presented. The results show the ability of the natural and synthetic molecules to potently inhibit 5-LO and mPEGS-1 in vitro. The potency of the most active compound (10) has been evaluated in vivo in an acute inflammatory mouse model and displayed potent anti-inflammatory activity comparable in potency to the drug zileuton used as a positive control.
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Affiliation(s)
- Alexandra Svouraki
- Department of Pharmacognosy and Natural Products Chemistry, School of Pharmacy, University of Athens, Panepistimiopolis Zografou , GR-15771, Athens, Greece
| | - Ulrike Garscha
- Chair of Pharmaceutical/Medicinal Chemistry, Institute of Pharmacy, Friedrich-Schiller-University , 07743 Jena, Germany
| | - Eirini Kouloura
- Department of Pharmacognosy and Natural Products Chemistry, School of Pharmacy, University of Athens, Panepistimiopolis Zografou , GR-15771, Athens, Greece
| | - Simona Pace
- Chair of Pharmaceutical/Medicinal Chemistry, Institute of Pharmacy, Friedrich-Schiller-University , 07743 Jena, Germany
| | - Carlo Pergola
- Chair of Pharmaceutical/Medicinal Chemistry, Institute of Pharmacy, Friedrich-Schiller-University , 07743 Jena, Germany
| | - Verena Krauth
- Chair of Pharmaceutical/Medicinal Chemistry, Institute of Pharmacy, Friedrich-Schiller-University , 07743 Jena, Germany
| | - Antonietta Rossi
- Department of Pharmacy, University of Naples Federico II , Naples, Italy
| | - Lidia Sautebin
- Department of Pharmacy, University of Naples Federico II , Naples, Italy
| | - Maria Halabalaki
- Department of Pharmacognosy and Natural Products Chemistry, School of Pharmacy, University of Athens, Panepistimiopolis Zografou , GR-15771, Athens, Greece
| | - Oliver Werz
- Chair of Pharmaceutical/Medicinal Chemistry, Institute of Pharmacy, Friedrich-Schiller-University , 07743 Jena, Germany
| | - Nicolas Gaboriaud-Kolar
- Department of Pharmacognosy and Natural Products Chemistry, School of Pharmacy, University of Athens, Panepistimiopolis Zografou , GR-15771, Athens, Greece
| | - Alexios-Leandros Skaltsounis
- Department of Pharmacognosy and Natural Products Chemistry, School of Pharmacy, University of Athens, Panepistimiopolis Zografou , GR-15771, Athens, Greece
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11
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Aligiannis N, Halabalaki M, Chaita E, Kouloura E, Argyropoulou A, Benaki D, Kalpoutzakis E, Angelis A, Stathopoulou K, Antoniou S, Sani M, Krauth V, Werz O, Schütz B, Schäfer H, Spraul M, Mikros E, Skaltsounis LA. Heterocovariance Based Metabolomics as a Powerful Tool Accelerating Bioactive Natural Product Identification. ChemistrySelect 2016. [DOI: 10.1002/slct.201600744] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Nektarios Aligiannis
- School of Pharmacy; University of Athens; Panepistimiopolis 15771 Zografou Greece
| | - Maria Halabalaki
- School of Pharmacy; University of Athens; Panepistimiopolis 15771 Zografou Greece
| | - Eliza Chaita
- School of Pharmacy; University of Athens; Panepistimiopolis 15771 Zografou Greece
| | - Eirini Kouloura
- School of Pharmacy; University of Athens; Panepistimiopolis 15771 Zografou Greece
| | | | - Dimitra Benaki
- School of Pharmacy; University of Athens; Panepistimiopolis 15771 Zografou Greece
| | | | - Apostolis Angelis
- School of Pharmacy; University of Athens; Panepistimiopolis 15771 Zografou Greece
| | | | - Stavroula Antoniou
- School of Pharmacy; University of Athens; Panepistimiopolis 15771 Zografou Greece
| | - Maria Sani
- School of Pharmacy; University of Athens; Panepistimiopolis 15771 Zografou Greece
| | - Verena Krauth
- Department of Pharmaceutical/Medicinal Chemistry; Institute of Pharmacy; Friedrich-Schiller-University Jena; Germany
| | - Oliver Werz
- Department of Pharmaceutical/Medicinal Chemistry; Institute of Pharmacy; Friedrich-Schiller-University Jena; Germany
| | - Birk Schütz
- Bruker BioSpin; Silberstreifen; D-76287 Rheinstetten Germany
| | - Hartmut Schäfer
- Bruker BioSpin; Silberstreifen; D-76287 Rheinstetten Germany
| | - Manfred Spraul
- Bruker BioSpin; Silberstreifen; D-76287 Rheinstetten Germany
| | - Emmanuel Mikros
- School of Pharmacy; University of Athens; Panepistimiopolis 15771 Zografou Greece
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12
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Kouloura E, Skaltsounis AL, Michel S, Halabalaki M. Ion tree-based structure elucidation of acetophenone dimers (AtA) from Acronychia pedunculata and their identification in extracts by liquid chromatography electrospray ionization LTQ-Orbitrap mass spectrometry. J Mass Spectrom 2015; 50:495-512. [PMID: 25800186 DOI: 10.1002/jms.3556] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2014] [Revised: 10/26/2014] [Accepted: 11/27/2014] [Indexed: 06/04/2023]
Abstract
Acronychia-type acetophenones (AtA) is a chemical group of compounds of important structural and biological interest, abundant in Acronychia species. However, there are no data available for their characterization using mass spectrometry. In the current work, AtA have been investigated by multistage high resolution mass spectrometry and both electrospray ionization and atmospheric pressure chemical ionization, in positive and negative mode, were utilized for their structure elucidation and identification. The analysis of AtA using a linear ion trap-Orbitrap analyzer enabled the structural determination of key fragment ions and cleavages, which can be used for the structural characterization thereof. A systematic nomenclature based on protonated and deprotonated fragment ions under collision-induced dissociation conditions and decision trees for the structural determination of AtA are proposed. Furthermore, taking advantage of the characteristic fragmentation patterns, a selective Ultra High Performance Liquid Chromatography Electrospray Ionization multistage Mass Spectrometry (UHPLC-ESI(-)-MS(n)) method was developed and successfully applied for the dereplication of known AtA and the identification of potentially new ones in Acronychia extracts. Despite the structure similarity and the presence of isomers, accurate characterization of known and unknown AtA derivatives was possible.
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Affiliation(s)
- Eirini Kouloura
- Department of Pharmacognosy and Natural Products Chemistry, Faculty of Pharmacy, University of Athens, Panepistimioupolis Zografou, Athens, 15771, Greece; UMR/CNRS 8638, Faculté de Pharmacie, Laboratoire de Pharmacognosie de l'Université Paris Descartes, 4 Avenue de l'Observatoire, F-75006, Paris, France
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13
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Kouloura E, Halabalaki M, Lallemand MC, Nam S, Jove R, Litaudon M, Awang K, Hadi HA, Skaltsounis AL. Cytotoxic prenylated acetophenone dimers from Acronychia pedunculata. J Nat Prod 2012; 75:1270-1276. [PMID: 22708987 DOI: 10.1021/np201007a] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Three new acetophenone dimers or Acronychia-type acetophenones, acropyrone (1), acropyranol A (2), and acropyranol B (3), were isolated from the trunk bark of Acronychia pedunculata and structurally characterized, together with four known acetophenone dimers, acrovestone (4), acrovestenol (5), acrofolione A (6), and acrofolione B (7), the acetophenone monomer acronyline (8), and four furoquinoline alkaloids. The chemical structures of the new isolated compounds were elucidated unambiguously by spectroscopic data analysis. The cytotoxic activities of the isolated acetophenone dimers were evaluated against the DU145 prostate and A2058 melanoma human cancer cell lines as well as the NHDF normal cell line. Acrovestone (4) and acrovestenol (5) exhibited substantial cytotoxicity, with IC(50) values of 0.38 and 2.8 μM against A2058 melanoma cells as well as 0.93 and 2.7 μM against DU145 prostate cancer cells, respectively.
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Affiliation(s)
- Eirini Kouloura
- Laboratory of Pharmacognosy and Natural Products Chemistry, School of Pharmacy, University of Athens , Panepistimioupoli Zografou, 15771 Athens, Greece
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14
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Grabher P, Durieu E, Kouloura E, Halabalaki M, Skaltsounis LA, Meijer L, Hamburger M, Potterat O. Library-based discovery of DYRK1A/CLK1 inhibitors from natural product extracts. Planta Med 2012; 78:951-6. [PMID: 22673832 DOI: 10.1055/s-0031-1298625] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
The dual specificity tyrosine-phosphorylation-regulated kinase DYRK1A possesses diverse roles in neuronal development and adult brain physiology, and increased activity has been linked to neurodegenerative diseases. Very few inhibitors of this kinase have been reported up to now. Screening of a library of > 900 plant and fungal extracts afforded 25 extracts with IC₅₀s < 10 µg/mL against DYRK1A. To identify the active constituents, the extracts were submitted to a process integrating physicochemical data with biological information, referred to as HPLC-based activity profiling. Follow-up investigation of four extracts led to the targeted isolation of harmine (1, IC₅₀ 0.022 µM) from Peganum harmala, emodin (3, IC₅₀ 4.2 µM) from Cassia nigricans, kaempferol (4, IC₅₀ 0.91 µM) from Cuscuta chinensis, and 3,8-di-O-methylherbacetin (11, IC₅₀ 8.6 µM), 3,3',4'-tri-O-methylmyricetin (12, IC₅₀ 7.1 µM) and ombuin (15, IC₅₀ 1.7 µM) from Larrea tridentata as the active constituents. Active extracts and compounds were also tested on the closely related cdc2-like kinase CLK1. Finally, the selectivity profile of compounds was evaluated by including other members of the DYRKs and CLKs families. While the flavonoids and emodin did not show significant differences in the potency of their activities, harmine (1) was most active against DYRK1A, CLK1, and CLK4, and less potent against the other kinases, with selectivity ranging from 2- to 20-fold.
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Affiliation(s)
- Patrick Grabher
- Division of Pharmaceutical Biology, University of Basel, Basel, Switzerland
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