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Charras Q, Rey P, Guillemain D, Dourguin F, Laganier H, Peschoux S, Molinié R, Ismaël M, Caffarri S, Rayon C, Jungas C. An efficient protocol for extracting thylakoid membranes and total leaf proteins from Posidonia oceanica and other polyphenol-rich plants. PLANT METHODS 2024; 20:38. [PMID: 38468328 DOI: 10.1186/s13007-024-01166-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/11/2023] [Accepted: 02/28/2024] [Indexed: 03/13/2024]
Abstract
BACKGROUND The extraction of thylakoids is an essential step in studying the structure of photosynthetic complexes and several other aspects of the photosynthetic process in plants. Conventional protocols have been developed for selected land plants grown in controlled conditions. Plants accumulate defensive chemical compounds such as polyphenols to cope with environmental stresses. When the polyphenol levels are high, their oxidation and cross-linking properties prevent thylakoid extraction. RESULTS In this study, we developed a method to counteract the hindering effects of polyphenols by modifying the grinding buffer with the addition of both vitamin C (VitC) and polyethylene glycol (PEG4000). This protocol was first applied to the marine plant Posidonia oceanica and then extended to other plants synthesizing substantial amounts of polyphenols, such as Quercus pubescens (oak) and Vitis vinifera (grapevine). Native gel analysis showed that photosynthetic complexes (PSII, PSI, and LHCII) can be extracted from purified membranes and fractionated comparably to those extracted from the model plant Arabidopsis thaliana. Moreover, total protein extraction from frozen P. oceanica leaves was also efficiently carried out using a denaturing buffer containing PEG and VitC. CONCLUSIONS Our work shows that the use of PEG and VitC significantly improves the isolation of native thylakoids, native photosynthetic complexes, and total proteins from plants containing high amounts of polyphenols and thus enables studies on photosynthesis in various plant species grown in natural conditions.
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Affiliation(s)
- Quentin Charras
- CEA, CNRS, BIAM, LGBP Team, Aix-Marseille University, Marseille, France
- Science for Life Laboratory, School of Engineering Sciences in Chemistry, Biotechnology and Health, KTH-Royal Institute of Technology, KTH University, Stockholm, Sweden
| | - Pascal Rey
- CEA, CNRS, BIAM, P&E Team, Aix-Marseille University, Saint Paul-Lez-Durance, France
| | - Dorian Guillemain
- CNRS, IRD, IRSTEA, OSU Institut Pythéas, Aix-Marseille University, Marseille, France
| | - Fabian Dourguin
- CEA, CNRS, BIAM, LGBP Team, Aix-Marseille University, Marseille, France
| | - Hugo Laganier
- CEA, CNRS, BIAM, LGBP Team, Aix-Marseille University, Marseille, France
| | - Sacha Peschoux
- UFR Informatique, mathématiques et mathématiques appliquées (IM2AG), Université Grenoble Alpes, Saint Martin d'Heres, France
| | - Roland Molinié
- UMR INRAE 1158 Transfrontalière BioEcoAgro, BIOlogie des Plantes et Innovation (BIOPI), UPJV, Amiens, France
| | - Marwa Ismaël
- UMR INRAE 1158 Transfrontalière BioEcoAgro, BIOlogie des Plantes et Innovation (BIOPI), UPJV, Amiens, France
| | - Stefano Caffarri
- CEA, CNRS, BIAM, LGBP Team, Aix-Marseille University, Marseille, France
| | - Catherine Rayon
- UMR INRAE 1158 Transfrontalière BioEcoAgro, BIOlogie des Plantes et Innovation (BIOPI), UPJV, Amiens, France
| | - Colette Jungas
- CEA, CNRS, BIAM, LGBP Team, Aix-Marseille University, Marseille, France.
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Abruscato G, Chiarelli R, Lazzara V, Punginelli D, Sugár S, Mauro M, Librizzi M, Di Stefano V, Arizza V, Vizzini A, Vazzana M, Luparello C. In Vitro Cytotoxic Effect of Aqueous Extracts from Leaves and Rhizomes of the Seagrass Posidonia oceanica (L.) Delile on HepG2 Liver Cancer Cells: Focus on Autophagy and Apoptosis. BIOLOGY 2023; 12:biology12040616. [PMID: 37106816 PMCID: PMC10135731 DOI: 10.3390/biology12040616] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/09/2023] [Revised: 04/11/2023] [Accepted: 04/15/2023] [Indexed: 04/29/2023]
Abstract
Aqueous extracts from Posidonia oceanica's green and brown (beached) leaves and rhizomes were prepared, submitted to phenolic compound and proteomic analysis, and examined for their potential cytotoxic effect on HepG2 liver cancer cells in culture. The chosen endpoints related to survival and death were cell viability and locomotory behavior, cell-cycle analysis, apoptosis and autophagy, mitochondrial membrane polarization, and cell redox state. Here, we show that 24 h exposure to both green-leaf- and rhizome-derived extracts decreased tumor cell number in a dose-response manner, with a mean half maximal inhibitory concentration (IC50) estimated at 83 and 11.5 μg of dry extract/mL, respectively. Exposure to the IC50 of the extracts appeared to inhibit cell motility and long-term cell replicating capacity, with a more pronounced effect exerted by the rhizome-derived preparation. The underlying death-promoting mechanisms identified involved the down-regulation of autophagy, the onset of apoptosis, the decrease in the generation of reactive oxygen species, and the dissipation of mitochondrial transmembrane potential, although, at the molecular level, the two extracts appeared to elicit partially differentiating effects, conceivably due to their diverse composition. In conclusion, P. oceanica extracts merit further investigation to develop novel promising prevention and/or treatment agents, as well as beneficial supplements for the formulation of functional foods and food-packaging material with antioxidant and anticancer properties.
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Affiliation(s)
- Giulia Abruscato
- Dipartimento di Scienze e Tecnologie Biologiche Chimiche e Farmaceutiche (STEBICEF), Università di Palermo, 90128 Palermo, Italy
| | - Roberto Chiarelli
- Dipartimento di Scienze e Tecnologie Biologiche Chimiche e Farmaceutiche (STEBICEF), Università di Palermo, 90128 Palermo, Italy
| | - Valentina Lazzara
- Dipartimento di Scienze e Tecnologie Biologiche Chimiche e Farmaceutiche (STEBICEF), Università di Palermo, 90128 Palermo, Italy
| | - Diletta Punginelli
- Dipartimento di Scienze e Tecnologie Biologiche Chimiche e Farmaceutiche (STEBICEF), Università di Palermo, 90128 Palermo, Italy
| | - Simon Sugár
- MS Proteomics Research Group, Research Centre for Natural Sciences, Eötvös Loránd Research Network, 1117 Budapest, Hungary
| | - Manuela Mauro
- Dipartimento di Scienze e Tecnologie Biologiche Chimiche e Farmaceutiche (STEBICEF), Università di Palermo, 90128 Palermo, Italy
| | - Mariangela Librizzi
- Dipartimento di Scienze e Tecnologie Biologiche Chimiche e Farmaceutiche (STEBICEF), Università di Palermo, 90128 Palermo, Italy
| | - Vita Di Stefano
- Dipartimento di Scienze e Tecnologie Biologiche Chimiche e Farmaceutiche (STEBICEF), Università di Palermo, 90128 Palermo, Italy
| | - Vincenzo Arizza
- Dipartimento di Scienze e Tecnologie Biologiche Chimiche e Farmaceutiche (STEBICEF), Università di Palermo, 90128 Palermo, Italy
| | - Aiti Vizzini
- Dipartimento di Scienze e Tecnologie Biologiche Chimiche e Farmaceutiche (STEBICEF), Università di Palermo, 90128 Palermo, Italy
| | - Mirella Vazzana
- Dipartimento di Scienze e Tecnologie Biologiche Chimiche e Farmaceutiche (STEBICEF), Università di Palermo, 90128 Palermo, Italy
| | - Claudio Luparello
- Dipartimento di Scienze e Tecnologie Biologiche Chimiche e Farmaceutiche (STEBICEF), Università di Palermo, 90128 Palermo, Italy
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Punginelli D, Catania V, Abruscato G, Luparello C, Vazzana M, Mauro M, Cunsolo V, Saletti R, Di Francesco A, Arizza V, Schillaci D. New Bioactive Peptides from the Mediterranean Seagrass Posidonia oceanica (L.) Delile and Their Impact on Antimicrobial Activity and Apoptosis of Human Cancer Cells. Int J Mol Sci 2023; 24:5650. [PMID: 36982723 PMCID: PMC10056643 DOI: 10.3390/ijms24065650] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2023] [Revised: 03/08/2023] [Accepted: 03/13/2023] [Indexed: 03/18/2023] Open
Abstract
The demand for new molecules to counter bacterial resistance to antibiotics and tumor cell resistance is increasingly pressing. The Mediterranean seagrass Posidonia oceanica is considered a promising source of new bioactive molecules. Polypeptide-enriched fractions of rhizomes and green leaves of the seagrass were tested against Gram-positive (e.g., Staphylococcus aureus, Enterococcus faecalis) and Gram-negative bacteria (e.g., Pseudomonas aeruginosa, Escherichia coli), as well as towards the yeast Candida albicans. The aforementioned extracts showed indicative MIC values, ranging from 1.61 μg/mL to 7.5 μg/mL, against the selected pathogens. Peptide fractions were further analyzed through a high-resolution mass spectrometry and database search, which identified nine novel peptides. Some discovered peptides and their derivatives were chemically synthesized and tested in vitro. The assays identified two synthetic peptides, derived from green leaves and rhizomes of P. oceanica, which revealed interesting antibiofilm activity towards S. aureus, E. coli, and P. aeruginosa (BIC50 equal to 17.7 μg/mL and 70.7 μg/mL). In addition, the natural and derivative peptides were also tested for potential cytotoxic and apoptosis-promoting effects on HepG2 cells, derived from human hepatocellular carcinomas. One natural and two synthetic peptides were proven to be effective against the "in vitro" liver cancer cell model. These novel peptides could be considered a good chemical platform for developing potential therapeutics.
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Affiliation(s)
- Diletta Punginelli
- Section of Pharmaceutical Chemistry, Department of Biological, Chemical and Pharmaceutical Sciences and Technologies (STEBICEF), University of Palermo, Via Archirafi 32, 90123 Palermo, Italy
| | - Valentina Catania
- Department of Earth and Sea Science (DiSTeM), University of Palermo, Viale delle Scienze Blg. 16, 90128 Palermo, Italy
| | - Giulia Abruscato
- Section of Cell Biology, Department of Biological, Chemical and Pharmaceutical Sciences and Technologies (STEBICEF), University of Palermo, Viale delle Scienze Blg. 16, 90128 Palermo, Italy
| | - Claudio Luparello
- Section of Cell Biology, Department of Biological, Chemical and Pharmaceutical Sciences and Technologies (STEBICEF), University of Palermo, Viale delle Scienze Blg. 16, 90128 Palermo, Italy
| | - Mirella Vazzana
- Section of Animal Biology and Anthropology, Department of Biological, Chemical and Pharmaceutical Sciences and Technologies (STEBICEF), University of Palermo, Via Archirafi 18, 90123 Palermo, Italy
| | - Manuela Mauro
- Section of Animal Biology and Anthropology, Department of Biological, Chemical and Pharmaceutical Sciences and Technologies (STEBICEF), University of Palermo, Via Archirafi 18, 90123 Palermo, Italy
| | - Vincenzo Cunsolo
- Department of Chemical Sciences, University of Catania, Viale A. Doria 6, 95125 Catania, Italy
| | - Rosaria Saletti
- Department of Chemical Sciences, University of Catania, Viale A. Doria 6, 95125 Catania, Italy
| | - Antonella Di Francesco
- Department of Chemical Sciences, University of Catania, Viale A. Doria 6, 95125 Catania, Italy
| | - Vincenzo Arizza
- Section of Animal Biology and Anthropology, Department of Biological, Chemical and Pharmaceutical Sciences and Technologies (STEBICEF), University of Palermo, Via Archirafi 18, 90123 Palermo, Italy
| | - Domenico Schillaci
- Section of Pharmaceutical Chemistry, Department of Biological, Chemical and Pharmaceutical Sciences and Technologies (STEBICEF), University of Palermo, Via Archirafi 32, 90123 Palermo, Italy
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Oliva M, Martinelli E, Guazzelli E, Cuccaro A, De Marchi L, Fumagalli G, Monni G, Vasarri M, Degl'Innocenti D, Pretti C. Posidonia oceanica (L.) (Delile, 1813) extracts as a potential booster biocide in fouling-release coatings. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:18480-18490. [PMID: 36215022 DOI: 10.1007/s11356-022-23460-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2022] [Accepted: 09/30/2022] [Indexed: 06/16/2023]
Abstract
Since the banning of tributyltin, the addition of inorganic (metal oxides) and organic (pesticides, herbicides) biocides in antifouling paint has represented an unavoidable step to counteract biofouling and the resulting biodeterioration of submerged surfaces. Therefore, the development of new methods that balance antifouling efficacy with environmental impact has become a topic of great importance. Among several proposed strategies, natural extracts may represent one of the most suitable alternatives to the widely used toxic biocides. Posidonia oceanica is one of the most representative organisms of the Mediterranean Sea and contains hundreds of bioactive compounds. In this study, we prepared, characterized, and assessed a hydroalcoholic extract of P. oceanica and then compared it to three model species. Together, these four species belong to relevant groups of biofoulers: bacteria (Aliivibrio fischeri), diatoms (Phaeodactylum tricornutum), and serpulid polychaetes (Ficopomatus enigmaticus). We also added the same P. oceanica extract to a PDMS-based coating formula. We tested this coating agent with Navicula salinicola and Ficopomatus enigmaticus to evaluate both its biocidal performance and its antifouling properties. Our results indicate that our P. oceanica extract provides suitable levels of protection against all the tested organisms and significantly reduces adhesion of N. salinicola cells and facilitates their release in low-intensity waterflows.
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Affiliation(s)
- Matteo Oliva
- Interuniversity Consortium of Marine Biology and Applied Ecology "G. Bacci" (CIBM), Viale N. Sauro 4, 57128, Livorno, Italy.
| | - Elisa Martinelli
- Department of Chemistry and Industrial Chemistry, University of Pisa, 56124, Pisa, Italy
| | - Elisa Guazzelli
- Department of Chemistry and Industrial Chemistry, University of Pisa, 56124, Pisa, Italy
| | - Alessia Cuccaro
- Department of Biology & CESAM, University of Aveiro, 3810-193, Aveiro, Portugal
| | - Lucia De Marchi
- Interuniversity Consortium of Marine Biology and Applied Ecology "G. Bacci" (CIBM), Viale N. Sauro 4, 57128, Livorno, Italy
| | - Giorgia Fumagalli
- Interuniversity Consortium of Marine Biology and Applied Ecology "G. Bacci" (CIBM), Viale N. Sauro 4, 57128, Livorno, Italy
| | - Gianfranca Monni
- Department of Veterinary Sciences, University of Pisa, Viale delle Piagge 2, 56124, Pisa, Italy
| | - Marzia Vasarri
- Department of Experimental and Clinical Biomedical Sciences, University of Florence, Viale Morgagni 50, 50134, Florence, Italy
| | - Donatella Degl'Innocenti
- Interuniversity Consortium of Marine Biology and Applied Ecology "G. Bacci" (CIBM), Viale N. Sauro 4, 57128, Livorno, Italy
- Department of Experimental and Clinical Biomedical Sciences, University of Florence, Viale Morgagni 50, 50134, Florence, Italy
| | - Carlo Pretti
- Interuniversity Consortium of Marine Biology and Applied Ecology "G. Bacci" (CIBM), Viale N. Sauro 4, 57128, Livorno, Italy
- Department of Veterinary Sciences, University of Pisa, Viale delle Piagge 2, 56124, Pisa, Italy
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