1
|
Buffeteau G, Hornedo-Ortega R, Gabaston J, Daugey N, Palos-Pinto A, Thienpont A, Brotin T, Mérillon JM, Buffeteau T, Waffo-Teguo P. Chiroptical and potential in vitro anti-inflammatory properties of viniferin stereoisomers from grapevine (Vitis vinifera L.). Food Chem 2022; 393:133359. [PMID: 35671662 DOI: 10.1016/j.foodchem.2022.133359] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2022] [Revised: 05/26/2022] [Accepted: 05/29/2022] [Indexed: 11/17/2022]
Abstract
Determination of stereochemistry and enantiomeric excess in chiral natural molecules is a research of great interest because enantiomers can exhibit different biological activities. Viniferin stilbene dimers are natural molecules present in grape berries and wine but also, in larger amount, in stalks of grapevine. Four stereoisomers of viniferin stilbene dimers (7aS,8aS)-E-ε-viniferin (1a), (7aR,8aR)-E-ε-viniferin (1b), (7aS,8aR)-E-ω-viniferin (2a), and (7aR,8aS)-E-ω-viniferin (2b) were isolated from grapevine stalks of Cabernet Sauvignon, Merlot and Sauvignon Blanc, using a combination of centrifugal partition chromatography (CPC), preparative and chiral HPLC. The structure elucidation of these molecules was achieved by NMR whereas the absolute configurations of the four stereoisomers were investigated by vibrational circular dichroism spectroscopy in combination with density functional theory (DFT) calculations. This study unambiguously established the (+)-(7aS,8aS) and (+)-(7aR,8aS) configurations for E-ε-viniferin and E-ω-viniferin, respectively. Finally, we show that Cabernet Sauvignon provided the quasi enantiopure (+)-(7aS,8aS)-E-ε-viniferin compound which presents the best anti-inflammatory and anti-oxidant activities.
Collapse
Affiliation(s)
- Guillaume Buffeteau
- Univ. Bordeaux, UFR des Sciences Pharmaceutiques, Unité OENO, UMR 1366 INRAE, Bordeaux INP - Institut des Sciences de la Vigne et du Vin, CS 50008 - 210, chemin de Leysotte, 33882 Villenave d'Ornon, France
| | - Ruth Hornedo-Ortega
- Univ. Bordeaux, UFR des Sciences Pharmaceutiques, Unité OENO, UMR 1366 INRAE, Bordeaux INP - Institut des Sciences de la Vigne et du Vin, CS 50008 - 210, chemin de Leysotte, 33882 Villenave d'Ornon, France
| | - Julien Gabaston
- Univ. Bordeaux, UFR des Sciences Pharmaceutiques, Unité OENO, UMR 1366 INRAE, Bordeaux INP - Institut des Sciences de la Vigne et du Vin, CS 50008 - 210, chemin de Leysotte, 33882 Villenave d'Ornon, France
| | - Nicolas Daugey
- Université de Bordeaux, Institut des Sciences Moléculaires, UMR 5255, CNRS, 351 Cours de la Libération, F-33405 Talence, France
| | - Antonio Palos-Pinto
- Univ. Bordeaux, UFR des Sciences Pharmaceutiques, Unité OENO, UMR 1366 INRAE, Bordeaux INP - Institut des Sciences de la Vigne et du Vin, CS 50008 - 210, chemin de Leysotte, 33882 Villenave d'Ornon, France
| | - Anne Thienpont
- Université de Bordeaux, Institut des Sciences Moléculaires, UMR 5255, CNRS, 351 Cours de la Libération, F-33405 Talence, France
| | - Thierry Brotin
- Université Lyon 1, Ecole Normale Supérieure de Lyon, CNRS, UMR 5182, Laboratoire de Chimie, 69364 Lyon, France
| | - Jean-Michel Mérillon
- Univ. Bordeaux, UFR des Sciences Pharmaceutiques, Unité OENO, UMR 1366 INRAE, Bordeaux INP - Institut des Sciences de la Vigne et du Vin, CS 50008 - 210, chemin de Leysotte, 33882 Villenave d'Ornon, France
| | - Thierry Buffeteau
- Université de Bordeaux, Institut des Sciences Moléculaires, UMR 5255, CNRS, 351 Cours de la Libération, F-33405 Talence, France
| | - Pierre Waffo-Teguo
- Univ. Bordeaux, UFR des Sciences Pharmaceutiques, Unité OENO, UMR 1366 INRAE, Bordeaux INP - Institut des Sciences de la Vigne et du Vin, CS 50008 - 210, chemin de Leysotte, 33882 Villenave d'Ornon, France.
| |
Collapse
|
2
|
Pinheiro WBS, Pinheiro Neto JR, Botelho AS, Dos Santos KIP, Da Silva GA, Muribeca AJB, Pamplona SGSR, Fonseca SSS, Silva MN, Arruda MSP. The use of bagassa guianensis aubl. forestry waste as an alternative for obtaining bioproducts and bioactive compounds. ARAB J CHEM 2022. [DOI: 10.1016/j.arabjc.2022.103813] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
|
3
|
Vine-Shoots as Enological Additives. A Study of Acute Toxicity and Cytotoxicity. Foods 2021; 10:foods10061267. [PMID: 34199530 PMCID: PMC8226571 DOI: 10.3390/foods10061267] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2021] [Revised: 05/20/2021] [Accepted: 05/31/2021] [Indexed: 01/07/2023] Open
Abstract
Toasted vine-shoots have been recently proposed as enological additives that can be used to improve the sensorial profile of wines. However, the possible toxicity of this new winery practice has not been studied so far. The aim of this study was to evaluate the toxicity of Tempranillo, Cencibel, and Cabernet Sauvignon toasted vine-shoots when used in winemaking. First, vine-shoots were characterized in terms of minerals and phenolic and furan compounds, and then their acute toxicity and cytotoxicity were studied using Microtox® and the metabolic reduction of 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assays. High EC50 values were obtained when the Microtox® assay was applied to vine-shoot aqueous extracts, similar to the case of herbal infusions. When the MTT assay was used, a cell viability above 70% was observed in all the wines made with those vine-shoots, and an even greater viability was observed in the case of Cabernet Sauvignon. Therefore, it was concluded that those vine-shoots have no cytotoxic potential.
Collapse
|
4
|
Medrano-Padial C, Puerto M, Richard T, Cantos-Villar E, Pichardo S. Protection and reversion role of a pure stilbene extract from grapevine shoot and its major compounds against an induced oxidative stress. J Funct Foods 2021. [DOI: 10.1016/j.jff.2021.104393] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
|
5
|
Toxicological Evaluation of Piceatannol, Pterostilbene, and ε-Viniferin for Their Potential Use in the Food Industry: A Review. Foods 2021; 10:foods10030592. [PMID: 33799882 PMCID: PMC7998146 DOI: 10.3390/foods10030592] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Revised: 03/02/2021] [Accepted: 03/08/2021] [Indexed: 12/11/2022] Open
Abstract
The application of stilbenes in the food industry is being considered because of their biological activities. Piceatannol, pterostilbene and ε-viniferin have awakened the industry’s interest. However, before they can be commercialized, we must first guarantee their safety for consumers. The present work reviews the toxicological studies performed with these stilbenes. A wide variety of studies has demonstrated their cytotoxic effects in both cancer and non-cancerous cell lines. In contrast, although DNA damage was detected by some authors, in vitro genotoxic studies on the effects of piceatannol, pterostilbene, and ε-viniferin remain scarce. None of the three reviewed substances have been evaluated using the in vitro tests required by the European Food Safety Authority (EFSA) as the first step in genotoxicity testing. We did not find any study on the toxic effects of these stilbenes in vivo. Thus, more studies are needed to confirm their safe use before they can be authorized as additive in the food industry.
Collapse
|
6
|
Medrano-Padial C, Puerto M, Prieto AI, Ayala N, Beaumont P, Rouger C, Krisa S, Pichardo S. In Vivo Genotoxicity Evaluation of a Stilbene Extract Prior to Its Use as a Natural Additive: A Combination of the Micronucleus Test and the Comet Assay. Foods 2021; 10:439. [PMID: 33671296 PMCID: PMC7921927 DOI: 10.3390/foods10020439] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2021] [Revised: 02/09/2021] [Accepted: 02/11/2021] [Indexed: 02/07/2023] Open
Abstract
Genotoxic data of substances that could be used as food additives are required by the European Food Safety Authority. In this sense, the use of an extract from grapevine shoots containing a stilbene richness of 99% (ST-99), due to its antioxidant and antibacterial activities, has been proposed as an alternative to sulfur dioxide in wine. The aim of this work was to study, for the first time, the in vivo genotoxic effects produced in rats orally exposed to 90, 180, or 360 mg ST-99/kg body weight at 0, 24, and 45 h. The combination of micronucleus assay in bone marrow (OECD 474) and standard (OECD 489) and enzyme-modified comet assay was used to determine the genotoxicity on cells isolated from stomach, liver, and blood of exposed animals. The ST-99 revealed no in vivo genotoxicity. These results were corroborated by analytical studies that confirm the presence of stilbenes and their metabolites in plasma and tissues. Moreover, to complete these findings, a histopathological study was performed under light microscopy in liver and stomach showing only slight modifications in both organs at the highest concentration used. The present work confirms that this extract is not genotoxic presenting a good profile for its potential application as a preservative in the wine industry.
Collapse
Affiliation(s)
- Concepción Medrano-Padial
- Area of Toxicology, Faculty of Pharmacy, Universidad de Sevilla, C/Profesor García González n°2, 41012 Seville, Spain; (C.M.-P.); (A.I.P.); (S.P.)
| | - María Puerto
- Area of Toxicology, Faculty of Pharmacy, Universidad de Sevilla, C/Profesor García González n°2, 41012 Seville, Spain; (C.M.-P.); (A.I.P.); (S.P.)
| | - Ana Isabel Prieto
- Area of Toxicology, Faculty of Pharmacy, Universidad de Sevilla, C/Profesor García González n°2, 41012 Seville, Spain; (C.M.-P.); (A.I.P.); (S.P.)
| | - Nahúm Ayala
- Veterinary Faculty, Universidad de Córdoba, Campus de Rabanales, Edificio de Sanidad Animal, 14071 Córdoba, Spain;
| | - Pauline Beaumont
- Unité de Recherche Œnologie, Molécules d’Intérêt Biologique, EA4577, USC 1366 INRAE, Université de Bordeaux, Institut des Sciences de la Vigne et du Vin, 210 Chemin de Leysotte, 33882 Villenave d’Ornon, France; (P.B.); (C.R.); (S.K.)
| | - Caroline Rouger
- Unité de Recherche Œnologie, Molécules d’Intérêt Biologique, EA4577, USC 1366 INRAE, Université de Bordeaux, Institut des Sciences de la Vigne et du Vin, 210 Chemin de Leysotte, 33882 Villenave d’Ornon, France; (P.B.); (C.R.); (S.K.)
| | - Stéphanie Krisa
- Unité de Recherche Œnologie, Molécules d’Intérêt Biologique, EA4577, USC 1366 INRAE, Université de Bordeaux, Institut des Sciences de la Vigne et du Vin, 210 Chemin de Leysotte, 33882 Villenave d’Ornon, France; (P.B.); (C.R.); (S.K.)
| | - Silvia Pichardo
- Area of Toxicology, Faculty of Pharmacy, Universidad de Sevilla, C/Profesor García González n°2, 41012 Seville, Spain; (C.M.-P.); (A.I.P.); (S.P.)
| |
Collapse
|
7
|
Medrano-Padial C, Prieto AI, Puerto M, Pichardo S. In vitro assessment of the mutagenic and genotoxic potential of a pure stilbene extract. Food Chem Toxicol 2021; 150:112065. [PMID: 33596453 DOI: 10.1016/j.fct.2021.112065] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2020] [Revised: 01/28/2021] [Accepted: 02/10/2021] [Indexed: 02/06/2023]
Abstract
Stilbenes are secondary metabolites of great interest produced by many plant species due to their important bioactive properties. These phytochemicals have become of increasing interest in the wine industry as a natural alternative to sulphur dioxide, which has been associated with human health risks. However, there is still little toxicological information on stilbenes and the results thus far have been contradictory. Considering the key role of genotoxicity in risk assessment and the need to offer safe products in the market, the aim of this study was to assess the mutagenic and genotoxic potential of a stilbene extract with 99% purity (ST-99 extract). A complete series of different in vitro tests (Ames test, micronucleus (MN) test, and standard and enzyme-modified comet assays) was performed before its use as a preservative in wines. The ST-99 extract induces a significant increase of binucleated cells with micronuclei only in presence of the metabolic fraction S9 at the highest concentration assayed. Neither the Ames test nor the comet assay revealed the extract's genotoxic potential. Further studies are necessary, including in vivo assays, to ensure consumer safety before it can be used.
Collapse
Affiliation(s)
- C Medrano-Padial
- Area of Toxicology, School of Pharmacy, Universidad de Sevilla, Profesor García González nº2, 41012, Seville, Spain
| | - A I Prieto
- Area of Toxicology, School of Pharmacy, Universidad de Sevilla, Profesor García González nº2, 41012, Seville, Spain.
| | - M Puerto
- Area of Toxicology, School of Pharmacy, Universidad de Sevilla, Profesor García González nº2, 41012, Seville, Spain
| | - S Pichardo
- Area of Toxicology, School of Pharmacy, Universidad de Sevilla, Profesor García González nº2, 41012, Seville, Spain
| |
Collapse
|
8
|
Development of New Antiproliferative Compound against Human Tumor Cells from the Marine Microalgae Nannochloropsis gaditana by Applied Proteomics. Int J Mol Sci 2020; 22:ijms22010096. [PMID: 33374179 PMCID: PMC7795124 DOI: 10.3390/ijms22010096] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2020] [Revised: 12/15/2020] [Accepted: 12/22/2020] [Indexed: 12/18/2022] Open
Abstract
Proteomics is a crucial tool for unravelling the molecular dynamics of essential biological processes, becoming a pivotal technique for basic and applied research. Diverse bioinformatic tools are required to manage and explore the huge amount of information obtained from a single proteomics experiment. Thus, functional annotation and protein-protein interactions are evaluated in depth leading to the biological conclusions that best fit the proteomic response in the system under study. To gain insight into potential applications of the identified proteins, a novel approach named "Applied Proteomics" has been developed by comparing the obtained protein information with the existing patents database. The development of massive sequencing technology and mass spectrometry (MS/MS) improvements has allowed the application of proteomics nonmodel microorganisms, which have been deeply described as a novel source of metabolites. Between them, Nannochloropsis gaditana has been pointed out as an alternative source of biomolecules. Recently, our research group has reported the first complete proteome analysis of this microalga, which was analysed using the applied proteomics concept with the identification of 488 proteins with potential industrial applications. To validate our approach, we selected the UCA01 protein from the prohibitin family. The recombinant version of this protein showed antiproliferative activity against two tumor cell lines, Caco2 (colon adenocarcinoma) and HepG-2 (hepatocellular carcinoma), proving that proteome data have been transformed into relevant biotechnological information. From Nannochloropsis gaditana has been developed a new tool against cancer-the protein named UCA01. This protein has selective effects inhibiting the growth of tumor cells, but does not show any effect on control cells. This approach describes the first practical approach to transform proteome information in a potential industrial application, named "applied proteomics". It is based on a novel bioalgorithm, which is able to identify proteins with potential industrial applications. From hundreds of proteins described in the proteome of N. gaditana, the bioalgorithm identified over 400 proteins with potential uses; one of them was selected as UCA01, "in vitro" and its potential was demonstrated against cancer. This approach has great potential, but the applications are potentially numerous and undefined.
Collapse
|