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Koutsaviti A, Kvasnicová M, Gonzalez G, Štenclová T, Agusti S, Duarte CM, Rarová L, Strnad M, Roussis V, Ioannou E. Isolation and Bioactivity Evaluation of Sesquiterpenes from an Alcyonarian of the Genus Lemnalia from the Saudi Arabian Red Sea. Chem Biodivers 2024; 21:e202400235. [PMID: 38412304 DOI: 10.1002/cbdv.202400235] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2024] [Revised: 02/24/2024] [Accepted: 02/25/2024] [Indexed: 02/29/2024]
Abstract
Over the last decades, soft corals have been proven a rich source of biologically active compounds, featuring a wide range of chemical structures. Herein, we investigated the chemistry of an alcyonarian of the genus Lemnalia (Neptheidae), specimens of which were collected from the coral reefs near Al Lith, on the south-west coast of Saudi Arabia. A series of chromatographic separations led to the isolation of 31 sesquiterpenes, featuring mainly the nardosinane and neolemnane carbon skeletons, among which three (13, 14 and 28) are new natural products. The metabolites isolated in sufficient amounts were evaluated in vitro in human tumor and non-cancerous cell lines for a number of biological activities, including their cytotoxic, anti-inflammatory, anti-angiogenic, and neuroprotective activities, as well as for their effect on androgen receptor (AR)-regulated transcription. Among the tested metabolites, compound 12 showed comparable neuroprotective activity to the positive control N-acetylcysteine, albeit at a 10-fold lower concentration.
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Affiliation(s)
- Aikaterini Koutsaviti
- Section of Pharmacognosy and Chemistry of Natural Products, Department of Pharmacy, School of Health Sciences, National and Kapodistrian University of Athens, Panepistimiopolis Zografou, Athens, 15771, Greece
| | - Marie Kvasnicová
- Laboratory of Growth Regulators, Institute of Experimental Botany of the Czech Academy of Sciences, and Faculty of Science, Palacký University, Slechtitelu 27, Olomouc, CZ-78371, Czech Republic
- Department of Experimental Biology, Faculty of Science, Palacký University, Slechtitelu 27, Olomouc, CZ-78371, Czech Republic
| | - Gabriel Gonzalez
- Department of Experimental Biology, Faculty of Science, Palacký University, Slechtitelu 27, Olomouc, CZ-78371, Czech Republic
- Department of Neurology, University Hospital in Olomouc, Zdravotníků 248/7, Olomouc, CZ-77900, Czech Republic
| | - Tereza Štenclová
- Department of Experimental Biology, Faculty of Science, Palacký University, Slechtitelu 27, Olomouc, CZ-78371, Czech Republic
| | - Susana Agusti
- Red Sea Research Center, King Abdullah University of Science and Technology, Thuwal, 23955-6900, Saudi Arabia
| | - Carlos M Duarte
- Red Sea Research Center, King Abdullah University of Science and Technology, Thuwal, 23955-6900, Saudi Arabia
| | - Lucie Rarová
- Laboratory of Growth Regulators, Institute of Experimental Botany of the Czech Academy of Sciences, and Faculty of Science, Palacký University, Slechtitelu 27, Olomouc, CZ-78371, Czech Republic
- Department of Neurology, University Hospital in Olomouc, Zdravotníků 248/7, Olomouc, CZ-77900, Czech Republic
| | - Miroslav Strnad
- Laboratory of Growth Regulators, Institute of Experimental Botany of the Czech Academy of Sciences, and Faculty of Science, Palacký University, Slechtitelu 27, Olomouc, CZ-78371, Czech Republic
- Department of Neurology, University Hospital in Olomouc, Zdravotníků 248/7, Olomouc, CZ-77900, Czech Republic
| | - Vassilios Roussis
- Section of Pharmacognosy and Chemistry of Natural Products, Department of Pharmacy, School of Health Sciences, National and Kapodistrian University of Athens, Panepistimiopolis Zografou, Athens, 15771, Greece
| | - Efstathia Ioannou
- Section of Pharmacognosy and Chemistry of Natural Products, Department of Pharmacy, School of Health Sciences, National and Kapodistrian University of Athens, Panepistimiopolis Zografou, Athens, 15771, Greece
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Duan YT, Koutsaviti A, Harizani M, Ignea C, Roussis V, Zhao Y, Ioannou E, Kampranis SC. Widespread biosynthesis of 16-carbon terpenoids in bacteria. Nat Chem Biol 2023; 19:1532-1539. [PMID: 37828399 DOI: 10.1038/s41589-023-01445-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2023] [Accepted: 09/11/2023] [Indexed: 10/14/2023]
Abstract
Terpenoids are the most diverse group of specialized metabolites with numerous applications. Their biosynthesis is based on the five-carbon isoprene building block and, as a result, almost all terpenoids isolated to date are based on backbones that contain multiples of five carbon atoms. Intrigued by the discovery of an unusual bacterial terpenoid with a 16-carbon skeleton, here we investigate whether the biosynthesis of 16-carbon terpenoids is more widespread than this single example. We mine bacterial genomic information and identify potential C16 biosynthetic clusters in more than 700 sequenced genomes. We study selected clusters using a yeast synthetic biology platform and reveal that the encoded synthases produce at least 47 different noncanonical terpenoids. By thorough chemical analysis, we explain the structures of 13 C16 metabolites, most of which possess intricate highly strained bi- and tricyclic backbones. Our results unveil the existence of an extensive class of terpenoids in bacteria.
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Affiliation(s)
- Yao-Tao Duan
- Biochemical Engineering Group, Plant Biochemistry Section, Department of Plant and Environmental Sciences, University of Copenhagen, Frederiksberg C, Denmark
| | - Aikaterini Koutsaviti
- Section of Pharmacognosy and Chemistry of Natural Products, Department of Pharmacy, School of Health Sciences, National and Kapodistrian University of Athens, Panepistimiopolis Zografou, Athens, Greece
| | - Maria Harizani
- Section of Pharmacognosy and Chemistry of Natural Products, Department of Pharmacy, School of Health Sciences, National and Kapodistrian University of Athens, Panepistimiopolis Zografou, Athens, Greece
| | - Codruta Ignea
- Biochemical Engineering Group, Plant Biochemistry Section, Department of Plant and Environmental Sciences, University of Copenhagen, Frederiksberg C, Denmark
- Department of Bioengineering, McGill University, Montreal, Quebec, Canada
| | - Vassilios Roussis
- Section of Pharmacognosy and Chemistry of Natural Products, Department of Pharmacy, School of Health Sciences, National and Kapodistrian University of Athens, Panepistimiopolis Zografou, Athens, Greece
| | - Yong Zhao
- Biochemical Engineering Group, Plant Biochemistry Section, Department of Plant and Environmental Sciences, University of Copenhagen, Frederiksberg C, Denmark.
| | - Efstathia Ioannou
- Section of Pharmacognosy and Chemistry of Natural Products, Department of Pharmacy, School of Health Sciences, National and Kapodistrian University of Athens, Panepistimiopolis Zografou, Athens, Greece.
| | - Sotirios C Kampranis
- Biochemical Engineering Group, Plant Biochemistry Section, Department of Plant and Environmental Sciences, University of Copenhagen, Frederiksberg C, Denmark.
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Kikionis S, Iliou K, Karra AG, Polychronis G, Choinopoulos I, Iatrou H, Eliades G, Kitraki E, Tseti I, Zinelis S, Ioannou E, Roussis V. Development of Bi- and Tri-Layer Nanofibrous Membranes Based on the Sulfated Polysaccharide Carrageenan for Periodontal Tissue Regeneration. Mar Drugs 2023; 21:565. [PMID: 37999389 PMCID: PMC10671875 DOI: 10.3390/md21110565] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2023] [Revised: 10/24/2023] [Accepted: 10/26/2023] [Indexed: 11/25/2023] Open
Abstract
Periodontitis is a microbially-induced inflammation of the periodontium that is characterized by the destruction of the periodontal ligament (PDL) and alveolar bone and constitutes the principal cause of teeth loss in adults. Periodontal tissue regeneration can be achieved through guided tissue/bone regeneration (GTR/GBR) membranes that act as a physical barrier preventing epithelial infiltration and providing adequate time and space for PDL cells and osteoblasts to proliferate into the affected area. Electrospun nanofibrous scaffolds, simulating the natural architecture of the extracellular matrix (ECM), have attracted increasing attention in periodontal tissue engineering. Carrageenans are ideal candidates for the development of novel nanofibrous GTR/GBR membranes, since previous studies have highlighted the potential of carrageenans for bone regeneration by promoting the attachment and proliferation of osteoblasts. Herein, we report the development of bi- and tri-layer nanofibrous GTR/GBR membranes based on carrageenans and other biocompatible polymers for the regeneration of periodontal tissue. The fabricated membranes were morphologically characterized, and their thermal and mechanical properties were determined. Their periodontal tissue regeneration potential was investigated through the evaluation of cell attachment, biocompatibility, and osteogenic differentiation of human PDL cells seeded on the prepared membranes.
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Affiliation(s)
- Stefanos Kikionis
- Section of Pharmacognosy and Chemistry of Natural Products, Department of Pharmacy, National and Kapodistrian University of Athens, Panepistimiopolis Zografou, 15771 Athens, Greece; (S.K.); (K.I.); (E.I.)
| | - Konstantina Iliou
- Section of Pharmacognosy and Chemistry of Natural Products, Department of Pharmacy, National and Kapodistrian University of Athens, Panepistimiopolis Zografou, 15771 Athens, Greece; (S.K.); (K.I.); (E.I.)
| | - Aikaterini G. Karra
- Department of Basic Sciences, School of Dentistry, National and Kapodistrian University of Athens, 11527 Athens, Greece; (A.G.K.); (E.K.)
| | - Georgios Polychronis
- Department of Biomaterials, School of Dentistry, National and Kapodistrian University of Athens, 11527 Athens, Greece; (G.P.); (G.E.); (S.Z.)
| | - Ioannis Choinopoulos
- Industrial Chemistry Laboratory, Department of Chemistry, National and Kapodistrian University of Athens, Panepistimiopolis Zografou, 15771 Athens, Greece; (I.C.); (H.I.)
| | - Hermis Iatrou
- Industrial Chemistry Laboratory, Department of Chemistry, National and Kapodistrian University of Athens, Panepistimiopolis Zografou, 15771 Athens, Greece; (I.C.); (H.I.)
| | - George Eliades
- Department of Biomaterials, School of Dentistry, National and Kapodistrian University of Athens, 11527 Athens, Greece; (G.P.); (G.E.); (S.Z.)
| | - Efthymia Kitraki
- Department of Basic Sciences, School of Dentistry, National and Kapodistrian University of Athens, 11527 Athens, Greece; (A.G.K.); (E.K.)
| | - Ioulia Tseti
- Uni-Pharma S.A., 35 Kalyftaki Str., 14564 Kifissia, Greece;
| | - Spiros Zinelis
- Department of Biomaterials, School of Dentistry, National and Kapodistrian University of Athens, 11527 Athens, Greece; (G.P.); (G.E.); (S.Z.)
| | - Efstathia Ioannou
- Section of Pharmacognosy and Chemistry of Natural Products, Department of Pharmacy, National and Kapodistrian University of Athens, Panepistimiopolis Zografou, 15771 Athens, Greece; (S.K.); (K.I.); (E.I.)
| | - Vassilios Roussis
- Section of Pharmacognosy and Chemistry of Natural Products, Department of Pharmacy, National and Kapodistrian University of Athens, Panepistimiopolis Zografou, 15771 Athens, Greece; (S.K.); (K.I.); (E.I.)
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Giaccio P, Charou D, Diakaki DI, Chita A, Gravanis A, Charalampopoulos I, Roussis V, Ioannou E. Butanolides and Butenolides from a Marine-Derived Streptomyces sp. Exert Neuroprotective Activity through Activation of the TrkB Neurotrophin Receptor. Mar Drugs 2023; 21:465. [PMID: 37755078 PMCID: PMC10532803 DOI: 10.3390/md21090465] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2023] [Revised: 08/21/2023] [Accepted: 08/22/2023] [Indexed: 09/28/2023] Open
Abstract
Neurodegenerative diseases are incurable and debilitating conditions, characterized by progressive loss and degeneration of vulnerable neuronal populations. Currently, there are no effective therapies available for the treatment of most neurodegenerative disorders. A panel of extracts exhibiting interesting chemical profiles among a high number of bacterial strains isolated from East Mediterranean marine sediments and macroorganisms were evaluated for their activity on TrkB-expressing cells. Among them, the actinobacterial strain Streptomyces sp. BI0788, exhibiting neuroprotective activity in vitro, was selected and cultivated in large-scale. The chemical analysis of its organic extract resulted in the isolation of four new butanolides (1, 4-6), along with two previously reported butanolides (2 and 3) and eight previously reported butenolides (7-14). Compounds 2-4 and 7-14 were evaluated for their neuroprotective effects on TrkB-expressing NIH-3T3 cells. Among them, metabolites 3, 4, 7, 10, 11, 13 and 14 exhibited significant protective activity on the aforementioned cells through the activation of TrkB, the high-affinity receptor for the Brain-Derived Neurotrophic Factor (BDNF), which is well known to play a crucial role in neuronal cell survival and maintenance.
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Affiliation(s)
- Paolo Giaccio
- Section of Pharmacognosy and Chemistry of Natural Products, Department of Pharmacy, National and Kapodistrian University of Athens, Panepistimiopolis Zografou, 15771 Athens, Greece; (P.G.); (D.-I.D.); (V.R.)
| | - Despoina Charou
- Department of Pharmacology, Medical School, University of Crete, 71003 Heraklion, Greece; (D.C.); (A.C.); (A.G.); (I.C.)
- Institute of Molecular Biology & Biotechnology, Foundation for Research & Technology-Hellas (IMBB-FORTH), 70013 Heraklion, Greece
| | - Dafni-Ioanna Diakaki
- Section of Pharmacognosy and Chemistry of Natural Products, Department of Pharmacy, National and Kapodistrian University of Athens, Panepistimiopolis Zografou, 15771 Athens, Greece; (P.G.); (D.-I.D.); (V.R.)
| | - Anna Chita
- Department of Pharmacology, Medical School, University of Crete, 71003 Heraklion, Greece; (D.C.); (A.C.); (A.G.); (I.C.)
- Institute of Molecular Biology & Biotechnology, Foundation for Research & Technology-Hellas (IMBB-FORTH), 70013 Heraklion, Greece
| | - Achille Gravanis
- Department of Pharmacology, Medical School, University of Crete, 71003 Heraklion, Greece; (D.C.); (A.C.); (A.G.); (I.C.)
- Institute of Molecular Biology & Biotechnology, Foundation for Research & Technology-Hellas (IMBB-FORTH), 70013 Heraklion, Greece
| | - Ioannis Charalampopoulos
- Department of Pharmacology, Medical School, University of Crete, 71003 Heraklion, Greece; (D.C.); (A.C.); (A.G.); (I.C.)
- Institute of Molecular Biology & Biotechnology, Foundation for Research & Technology-Hellas (IMBB-FORTH), 70013 Heraklion, Greece
| | - Vassilios Roussis
- Section of Pharmacognosy and Chemistry of Natural Products, Department of Pharmacy, National and Kapodistrian University of Athens, Panepistimiopolis Zografou, 15771 Athens, Greece; (P.G.); (D.-I.D.); (V.R.)
| | - Efstathia Ioannou
- Section of Pharmacognosy and Chemistry of Natural Products, Department of Pharmacy, National and Kapodistrian University of Athens, Panepistimiopolis Zografou, 15771 Athens, Greece; (P.G.); (D.-I.D.); (V.R.)
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Kikionis S, Papakyriakopoulou P, Mavrogiorgis P, Vasileva EA, Mishchenko NP, Fedoreyev SA, Valsami G, Ioannou E, Roussis V. Development of Novel Pharmaceutical Forms of the Marine Bioactive Pigment Echinochrome A Enabling Alternative Routes of Administration. Mar Drugs 2023; 21:md21040250. [PMID: 37103389 PMCID: PMC10147083 DOI: 10.3390/md21040250] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2023] [Revised: 04/13/2023] [Accepted: 04/14/2023] [Indexed: 04/28/2023] Open
Abstract
Echinochrome A (EchA), a marine bioactive pigment isolated from various sea urchin species, is the active agent of the clinically approved drug Histochrome®. EchA is currently only available in the form of an isotonic solution of its di- and tri-sodium salts due to its poor water solubility and sensitivity to oxidation. Electrospun polymeric nanofibers have lately emerged as promising drug carriers capable of improving the dissolution and bioavailability of drugs with limited water solubility. In the current study, EchA isolated from sea urchins of the genus Diadema collected at the island of Kastellorizo was incorporated in electrospun micro-/nanofibrous matrices composed of polycaprolactone and polyvinylpyrrolidone in various combinations. The physicochemical properties of the micro-/nanofibers were characterized using SEM, FT-IR, TGA and DSC analyses. The fabricated matrices exhibited variable dissolution/release profiles of EchA, as evidenced in in vitro experiments using gastrointestinal-like fluids (pH 1.2, 4.5 and 6.8). Ex vivo permeability studies using the EchA-loaded micro-/nanofibrous matrices showed an increased permeation of EchA across the duodenum barrier. The results of our study clearly show that electrospun polymeric micro-/nanofibers represent promising carriers for the development of new pharmaceutical formulations with controlled release, as well as increased stability and solubility of EchA, suitable for oral administration, while offering the potential for targeted delivery.
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Affiliation(s)
- Stefanos Kikionis
- Section of Pharmacognosy and Chemistry of Natural Products, Department of Pharmacy, National and Kapodistrian University of Athens, Panepistimiopolis Zografou, 15771 Athens, Greece
| | - Paraskevi Papakyriakopoulou
- Section of Pharmaceutical Technology, Department of Pharmacy, National and Kapodistrian University of Athens, Panepistimiopolis Zografou, 15784 Athens, Greece
| | - Panagiotis Mavrogiorgis
- Section of Pharmacognosy and Chemistry of Natural Products, Department of Pharmacy, National and Kapodistrian University of Athens, Panepistimiopolis Zografou, 15771 Athens, Greece
| | - Elena A Vasileva
- Laboratory of the Chemistry of Natural Quinonoid Compounds of the G. B. Elyakov Pacific Institute of Bioorganic Chemistry, Far-Eastern Branch of the Russian Academy of Science, Prospect 100 let Vladivostoku, 159, 690022 Vladivostok, Russia
| | - Natalia P Mishchenko
- Laboratory of the Chemistry of Natural Quinonoid Compounds of the G. B. Elyakov Pacific Institute of Bioorganic Chemistry, Far-Eastern Branch of the Russian Academy of Science, Prospect 100 let Vladivostoku, 159, 690022 Vladivostok, Russia
| | - Sergey A Fedoreyev
- Laboratory of the Chemistry of Natural Quinonoid Compounds of the G. B. Elyakov Pacific Institute of Bioorganic Chemistry, Far-Eastern Branch of the Russian Academy of Science, Prospect 100 let Vladivostoku, 159, 690022 Vladivostok, Russia
| | - Georgia Valsami
- Section of Pharmaceutical Technology, Department of Pharmacy, National and Kapodistrian University of Athens, Panepistimiopolis Zografou, 15784 Athens, Greece
| | - Efstathia Ioannou
- Section of Pharmacognosy and Chemistry of Natural Products, Department of Pharmacy, National and Kapodistrian University of Athens, Panepistimiopolis Zografou, 15771 Athens, Greece
| | - Vassilios Roussis
- Section of Pharmacognosy and Chemistry of Natural Products, Department of Pharmacy, National and Kapodistrian University of Athens, Panepistimiopolis Zografou, 15771 Athens, Greece
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Kougia E, Ioannou E, Roussis V, Tzovenis I, Chentir I, Markou G. Iron (Fe) biofortification of Arthrospira platensis: Effects on growth, biochemical composition and in vitro iron bioaccessibility. ALGAL RES 2023. [DOI: 10.1016/j.algal.2023.103016] [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: 02/18/2023]
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Tziveleka LA, Kikionis S, Karkatzoulis L, Bethanis K, Roussis V, Ioannou E. Valorization of Fish Waste: Isolation and Characterization of Acid- and Pepsin-Soluble Collagen from the Scales of Mediterranean Fish and Fabrication of Collagen-Based Nanofibrous Scaffolds. Mar Drugs 2022; 20:664. [PMID: 36354987 PMCID: PMC9697972 DOI: 10.3390/md20110664] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Revised: 10/15/2022] [Accepted: 10/21/2022] [Indexed: 11/25/2023] Open
Abstract
In search of alternative and sustainable sources of collagenous materials for biomedical applications, the scales of five Mediterranean fish species-fished in high tonnage in the Mediterranean region since they represent popular choices for the local diet-as well as those of the Atlantic salmon for comparison purposes, were comparatively studied for their acid- and pepsin-soluble collagen content. Fish scales that currently represent a discarded biomass of no value could be efficiently exploited for the production of a high added-value biomaterial. The isolated collagenous materials, which showed the typical electrophoretic patterns of type I collagen, were morphologically and physicochemically characterized. Using scanning electron microscopy the fibrous morphology of the isolated collagens was confirmed, while the hydroxyproline content, in conjunction with infrared spectroscopy and X-ray diffraction studies verified the characteristic for collagen amino acid profile and its secondary structure. The acid- and pepsin-soluble collagens isolated from the fish scales were blended with the bioactive sulfated marine polysaccharide ulvan and polyethylene oxide and electrospun to afford nanofibrous scaffolds that could find applications in the biomedical sector.
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Affiliation(s)
- Leto-Aikaterini Tziveleka
- Section of Pharmacognosy and Chemistry of Natural Products, Department of Pharmacy, National and Kapodistrian University of Athens, Panepistimiopolis Zografou, 15771 Athens, Greece
| | - Stefanos Kikionis
- Section of Pharmacognosy and Chemistry of Natural Products, Department of Pharmacy, National and Kapodistrian University of Athens, Panepistimiopolis Zografou, 15771 Athens, Greece
| | - Labros Karkatzoulis
- Section of Pharmacognosy and Chemistry of Natural Products, Department of Pharmacy, National and Kapodistrian University of Athens, Panepistimiopolis Zografou, 15771 Athens, Greece
- Laboratory of Physics, Department of Biotechnology, Agricultural University of Athens, 11855 Athens, Greece
| | - Kostas Bethanis
- Laboratory of Physics, Department of Biotechnology, Agricultural University of Athens, 11855 Athens, Greece
| | - Vassilios Roussis
- Section of Pharmacognosy and Chemistry of Natural Products, Department of Pharmacy, National and Kapodistrian University of Athens, Panepistimiopolis Zografou, 15771 Athens, Greece
| | - Efstathia Ioannou
- Section of Pharmacognosy and Chemistry of Natural Products, Department of Pharmacy, National and Kapodistrian University of Athens, Panepistimiopolis Zografou, 15771 Athens, Greece
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Tziveleka LA, Pippa N, Ioannou E, Demetzos C, Roussis V. Development of Ulvan-Containing Liposomes as Antibacterial Drug Delivery Platforms. J Funct Biomater 2022; 13:jfb13040186. [PMID: 36278655 PMCID: PMC9589965 DOI: 10.3390/jfb13040186] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2022] [Revised: 10/03/2022] [Accepted: 10/10/2022] [Indexed: 11/16/2022] Open
Abstract
Liposomes, due to their safety profile and targeting ability, are among the most studied nanocarriers as antimicrobial delivery systems. However, due to lack of stability and the non-specific interaction of liposomes with cells and proteins, their use is relatively limited. Aiming to overcome these drawbacks, it was envisaged that incorporation of ulvan, a bioactive marine sulfated polysaccharide isolated from green algae, in liposomes could improve their physicochemical properties and overall stability. Thus, we initially studied the interactions of ulvan with neutral, negatively, and positively charged lipids using Differential Scanning Calorimetry and subsequently, based on the obtained results, we prepared the respective ulvan–containing neutral and charged liposomes, where ulvan interacts with both lipid chains and polar groups in the liposomal bilayer. In a further step, we entrapped in the liposomes fusidic acid, used as a model antibacterial drug, and proceeded with the evaluation of their antibacterial activity against Staphylococcus aureus. The physicochemical properties (size and ζ-potential), stability, morphology, and entrapment efficiency of the prepared liposomal formulations were determined.
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Affiliation(s)
- Leto-Aikaterini Tziveleka
- Section of Pharmacognosy and Chemistry of Natural Products, Department of Pharmacy, National and Kapodistrian University of Athens, Panepistimiopolis Zografou, 15771 Athens, Greece
| | - Natassa Pippa
- Section of Pharmaceutical Technology, Department of Pharmacy, National and Kapodistrian University of Athens, Panepistimiopolis Zografou, 15771 Athens, Greece
| | - Efstathia Ioannou
- Section of Pharmacognosy and Chemistry of Natural Products, Department of Pharmacy, National and Kapodistrian University of Athens, Panepistimiopolis Zografou, 15771 Athens, Greece
| | - Costas Demetzos
- Section of Pharmaceutical Technology, Department of Pharmacy, National and Kapodistrian University of Athens, Panepistimiopolis Zografou, 15771 Athens, Greece
- Correspondence: (C.D.); (V.R.)
| | - Vassilios Roussis
- Section of Pharmacognosy and Chemistry of Natural Products, Department of Pharmacy, National and Kapodistrian University of Athens, Panepistimiopolis Zografou, 15771 Athens, Greece
- Correspondence: (C.D.); (V.R.)
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Vasilopoulou MA, Gioran A, Theodoropoulou M, Koutsaviti A, Roussis V, Ioannou E, Chondrogianni N. Healthspan improvement and anti-aggregation effects induced by a marine-derived structural proteasome activator. Redox Biol 2022; 56:102462. [PMID: 36095970 PMCID: PMC9482115 DOI: 10.1016/j.redox.2022.102462] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2022] [Revised: 08/28/2022] [Accepted: 08/28/2022] [Indexed: 11/15/2022] Open
Abstract
Proteasome activation has been shown to promote cellular and organismal healthspan and to protect against aggregation-related conditions, such as Alzheimer's disease (AD). Various natural compounds have been described for their proteasome activating properties but scarce data exist on marine metabolites that often possess unique chemical structures, exhibiting pronounced bioactivities with novel mechanisms of action. In this study, we have identified for the first time a marine structural proteasome activator, namely (1R,3E,6R,7Z,11S,12S)-dolabella-3,7,18-trien-6,17-olide (DBTO). DBTO activates the 20S proteasome complex in cell-free assays but also in cellulo. Continuous supplementation of human primary fibroblasts with DBTO throughout their cellular lifespan confers an improved healthspan while ameliorated health status is also observed in wild type (wt) Caenorhabditis elegans (C. elegans) nematodes supplemented with DBTO. Furthermore, treatment of various AD nematode models, as well as of human cells of neuronal origin challenged with exogenously added Aβ peptide, with DBTO results in enhanced protection against Aβ-induced proteotoxicity. In total, our results reveal the first structural proteasome activator derived from the marine ecosystem and highlight its potential as a compound that might be used for healthspan maintenance and preventive strategies against proteinopathies, such as AD. (1R,3E,6R,7Z,11S,12S)-dolabella-3,7,18-trien-6,17-olide (DBTO) is a structural proteasome activator. DBTO is the first identified marine structural proteasome activator. DBTO positively modulates cellular healthspan and organismal health status. DBTO confers protection against Aβ-induced proteotoxicity.
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Terezaki A, Kikionis S, Ioannou E, Sfiniadakis I, Tziveleka LA, Vitsos A, Roussis V, Rallis M. Ulvan/gelatin-based nanofibrous patches as a promising treatment for burn wounds. J Drug Deliv Sci Technol 2022. [DOI: 10.1016/j.jddst.2022.103535] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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Iliou K, Kikionis S, Ioannou E, Roussis V. Marine Biopolymers as Bioactive Functional Ingredients of Electrospun Nanofibrous Scaffolds for Biomedical Applications. Mar Drugs 2022; 20:md20050314. [PMID: 35621965 PMCID: PMC9143254 DOI: 10.3390/md20050314] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2022] [Revised: 04/30/2022] [Accepted: 05/01/2022] [Indexed: 02/01/2023] Open
Abstract
Marine biopolymers, abundantly present in seaweeds and marine animals, feature diverse structures and functionalities, and possess a wide range of beneficial biological activities. Characterized by high biocompatibility and biodegradability, as well as unique physicochemical properties, marine biopolymers are attracting a constantly increasing interest for the development of advanced systems for applications in the biomedical field. The development of electrospinning offers an innovative technological platform for the production of nonwoven nanofibrous scaffolds with increased surface area, high encapsulation efficacy, intrinsic interconnectivity, and structural analogy to the natural extracellular matrix. Marine biopolymer-based electrospun nanofibrous scaffolds with multifunctional characteristics and tunable mechanical properties now attract significant attention for biomedical applications, such as tissue engineering, drug delivery, and wound healing. The present review, covering the literature up to the end of 2021, highlights the advancements in the development of marine biopolymer-based electrospun nanofibers for their utilization as cell proliferation scaffolds, bioadhesives, release modifiers, and wound dressings.
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Gabed N, Verret F, Peticca A, Kryvoruchko I, Gastineau R, Bosson O, Séveno J, Davidovich O, Davidovich N, Witkowski A, Kristoffersen JB, Benali A, Ioannou E, Koutsaviti A, Roussis V, Gâteau H, Phimmaha S, Leignel V, Badawi M, Khiar F, Francezon N, Fodil M, Pasetto P, Mouget JL. What Was Old Is New Again: The Pennate Diatom Haslea ostrearia (Gaillon) Simonsen in the Multi-Omic Age. Mar Drugs 2022; 20:md20040234. [PMID: 35447907 PMCID: PMC9033121 DOI: 10.3390/md20040234] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2022] [Revised: 03/08/2022] [Accepted: 03/18/2022] [Indexed: 02/04/2023] Open
Abstract
The marine pennate diatom Haslea ostrearia has long been known for its characteristic blue pigment marennine, which is responsible for the greening of invertebrate gills, a natural phenomenon of great importance for the oyster industry. For two centuries, this taxon was considered unique; however, the recent description of a new blue Haslea species revealed unsuspected biodiversity. Marennine-like pigments are natural blue dyes that display various biological activities—e.g., antibacterial, antioxidant and antiproliferative—with a great potential for applications in the food, feed, cosmetic and health industries. Regarding fundamental prospects, researchers use model organisms as standards to study cellular and physiological processes in other organisms, and there is a growing and crucial need for more, new and unconventional model organisms to better correspond to the diversity of the tree of life. The present work, thus, advocates for establishing H. ostrearia as a new model organism by presenting its pros and cons—i.e., the interesting aspects of this peculiar diatom (representative of benthic-epiphytic phytoplankton, with original behavior and chemodiversity, controlled sexual reproduction, fundamental and applied-oriented importance, reference genome, and transcriptome will soon be available); it will also present the difficulties encountered before this becomes a reality as it is for other diatom models (the genetics of the species in its infancy, the transformation feasibility to be explored, the routine methods needed to cryopreserve strains of interest).
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Affiliation(s)
- Noujoud Gabed
- Institute of Marine Biology, Biotechnology and Aquaculture, Hellenic Centre for Marine Research (HCMR), Gournes Pediados, 71003 Heraklion, Greece; (N.G.); (J.B.K.); (A.B.)
- Oran High School of Biological Sciences (ESSBO), Cellular and Molecular Biology Department, Oran 31000, Algeria
- Laboratoire d’Aquaculture et Bioremediation AquaBior, Université d’Oran 1, Oran 31000, Algeria
| | - Frédéric Verret
- Institute of Marine Biology, Biotechnology and Aquaculture, Hellenic Centre for Marine Research (HCMR), Gournes Pediados, 71003 Heraklion, Greece; (N.G.); (J.B.K.); (A.B.)
- Correspondence: ; Tel.: +30-2810-337-852
| | - Aurélie Peticca
- Laboratoire Biologie des Organismes, Stress, Santé, Environnement (BiOSSE), Le Mans Université, Avenue Olivier Messiaen, 72085 Le Mans, France; (A.P.); (O.B.); (J.S.); (H.G.); (S.P.); (V.L.); (M.B.); (F.K.); (M.F.); (J.-L.M.)
| | - Igor Kryvoruchko
- Department of Biology, United Arab Emirates University (UAEU), Al Ain P.O. Box 15551, United Arab Emirates;
| | - Romain Gastineau
- Institute of Marine and Environmental Sciences, University of Szczecin, Mickiewicza 16, 70-383 Szczecin, Poland; (R.G.); (N.D.); (A.W.)
| | - Orlane Bosson
- Laboratoire Biologie des Organismes, Stress, Santé, Environnement (BiOSSE), Le Mans Université, Avenue Olivier Messiaen, 72085 Le Mans, France; (A.P.); (O.B.); (J.S.); (H.G.); (S.P.); (V.L.); (M.B.); (F.K.); (M.F.); (J.-L.M.)
| | - Julie Séveno
- Laboratoire Biologie des Organismes, Stress, Santé, Environnement (BiOSSE), Le Mans Université, Avenue Olivier Messiaen, 72085 Le Mans, France; (A.P.); (O.B.); (J.S.); (H.G.); (S.P.); (V.L.); (M.B.); (F.K.); (M.F.); (J.-L.M.)
| | - Olga Davidovich
- Karadag Scientific Station, Natural Reserve of the Russian Academy of Sciences, Kurortnoe, 98188 Feodosiya, Russia;
| | - Nikolai Davidovich
- Institute of Marine and Environmental Sciences, University of Szczecin, Mickiewicza 16, 70-383 Szczecin, Poland; (R.G.); (N.D.); (A.W.)
- Karadag Scientific Station, Natural Reserve of the Russian Academy of Sciences, Kurortnoe, 98188 Feodosiya, Russia;
| | - Andrzej Witkowski
- Institute of Marine and Environmental Sciences, University of Szczecin, Mickiewicza 16, 70-383 Szczecin, Poland; (R.G.); (N.D.); (A.W.)
| | - Jon Bent Kristoffersen
- Institute of Marine Biology, Biotechnology and Aquaculture, Hellenic Centre for Marine Research (HCMR), Gournes Pediados, 71003 Heraklion, Greece; (N.G.); (J.B.K.); (A.B.)
| | - Amel Benali
- Institute of Marine Biology, Biotechnology and Aquaculture, Hellenic Centre for Marine Research (HCMR), Gournes Pediados, 71003 Heraklion, Greece; (N.G.); (J.B.K.); (A.B.)
- Laboratoire d’Aquaculture et Bioremediation AquaBior, Université d’Oran 1, Oran 31000, Algeria
- Laboratoire de Génétique Moléculaire et Cellulaire, Université des Sciences et de la Technologie d’Oran Mohamed BOUDIAF-USTO-MB, BP 1505, El M’naouer, Oran 31000, Algeria
| | - Efstathia Ioannou
- Section of Pharmacognosy and Chemistry of Natural Products, Department of Pharmacy, National and Kapodistrian University of Athens, Panepistimiopolis Zografou, 15771 Athens, Greece; (E.I.); (A.K.); (V.R.)
| | - Aikaterini Koutsaviti
- Section of Pharmacognosy and Chemistry of Natural Products, Department of Pharmacy, National and Kapodistrian University of Athens, Panepistimiopolis Zografou, 15771 Athens, Greece; (E.I.); (A.K.); (V.R.)
| | - Vassilios Roussis
- Section of Pharmacognosy and Chemistry of Natural Products, Department of Pharmacy, National and Kapodistrian University of Athens, Panepistimiopolis Zografou, 15771 Athens, Greece; (E.I.); (A.K.); (V.R.)
| | - Hélène Gâteau
- Laboratoire Biologie des Organismes, Stress, Santé, Environnement (BiOSSE), Le Mans Université, Avenue Olivier Messiaen, 72085 Le Mans, France; (A.P.); (O.B.); (J.S.); (H.G.); (S.P.); (V.L.); (M.B.); (F.K.); (M.F.); (J.-L.M.)
| | - Suliya Phimmaha
- Laboratoire Biologie des Organismes, Stress, Santé, Environnement (BiOSSE), Le Mans Université, Avenue Olivier Messiaen, 72085 Le Mans, France; (A.P.); (O.B.); (J.S.); (H.G.); (S.P.); (V.L.); (M.B.); (F.K.); (M.F.); (J.-L.M.)
| | - Vincent Leignel
- Laboratoire Biologie des Organismes, Stress, Santé, Environnement (BiOSSE), Le Mans Université, Avenue Olivier Messiaen, 72085 Le Mans, France; (A.P.); (O.B.); (J.S.); (H.G.); (S.P.); (V.L.); (M.B.); (F.K.); (M.F.); (J.-L.M.)
| | - Myriam Badawi
- Laboratoire Biologie des Organismes, Stress, Santé, Environnement (BiOSSE), Le Mans Université, Avenue Olivier Messiaen, 72085 Le Mans, France; (A.P.); (O.B.); (J.S.); (H.G.); (S.P.); (V.L.); (M.B.); (F.K.); (M.F.); (J.-L.M.)
| | - Feriel Khiar
- Laboratoire Biologie des Organismes, Stress, Santé, Environnement (BiOSSE), Le Mans Université, Avenue Olivier Messiaen, 72085 Le Mans, France; (A.P.); (O.B.); (J.S.); (H.G.); (S.P.); (V.L.); (M.B.); (F.K.); (M.F.); (J.-L.M.)
| | - Nellie Francezon
- Institut des Molécules et Matériaux du Mans, UMR CNRS 6283, Le Mans Université, Avenue Olivier Messiaen, 2085 Le Mans, France; (N.F.); (P.P.)
| | - Mostefa Fodil
- Laboratoire Biologie des Organismes, Stress, Santé, Environnement (BiOSSE), Le Mans Université, Avenue Olivier Messiaen, 72085 Le Mans, France; (A.P.); (O.B.); (J.S.); (H.G.); (S.P.); (V.L.); (M.B.); (F.K.); (M.F.); (J.-L.M.)
| | - Pamela Pasetto
- Institut des Molécules et Matériaux du Mans, UMR CNRS 6283, Le Mans Université, Avenue Olivier Messiaen, 2085 Le Mans, France; (N.F.); (P.P.)
| | - Jean-Luc Mouget
- Laboratoire Biologie des Organismes, Stress, Santé, Environnement (BiOSSE), Le Mans Université, Avenue Olivier Messiaen, 72085 Le Mans, France; (A.P.); (O.B.); (J.S.); (H.G.); (S.P.); (V.L.); (M.B.); (F.K.); (M.F.); (J.-L.M.)
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Harizani M, Diakaki DI, Perdikaris S, Roussis V, Ioannou E. New C15 Acetogenins from Two Species of Laurencia from the Aegean Sea. Molecules 2022; 27:molecules27061866. [PMID: 35335229 PMCID: PMC8953645 DOI: 10.3390/molecules27061866] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2022] [Revised: 03/06/2022] [Accepted: 03/10/2022] [Indexed: 11/17/2022] Open
Abstract
The chemical diversity of the approximately 1,200 natural products isolated from red algae of the genus Laurencia, in combination with the wide range of their biological activities, have placed species of Laurencia in the spotlight of marine chemists’ attention for over 60 years. The chemical investigation of the organic (CH2Cl2/MeOH) extracts of Laurencia microcladia and Laurencia obtusa, both collected off the coasts of Tinos island in the Aegean Sea, resulted in the isolation of 32 secondary metabolites, including 23 C15 acetogenins (1–23), 7 sesquiterpenes (24–30) and 2 diterpenes (31 and 32). Among them, six new C15 acetogenins, namely 10-acetyl-sagonenyne (2), cis-sagonenyne (3), trans-thuwalenyne C (4), tinosallene A (11), tinosallene B (12) and obtusallene XI (17), were identified and their structures were elucidated by extensive analysis of their spectroscopic data. Compounds 1–3, 5–11, 13 and 15–32 were evaluated for their antibacterial activity against Staphylococcus aureus and Escherichia coli.
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Affiliation(s)
- Maria Harizani
- Section of Pharmacognosy and Chemistry of Natural Products, Department of Pharmacy, School of Health Sciences, National and Kapodistrian University of Athens, Panepistimiopolis Zografou, 15771 Athens, Greece
| | - Dafni-Ioanna Diakaki
- Section of Pharmacognosy and Chemistry of Natural Products, Department of Pharmacy, School of Health Sciences, National and Kapodistrian University of Athens, Panepistimiopolis Zografou, 15771 Athens, Greece
| | - Stamatios Perdikaris
- Section of Pharmacognosy and Chemistry of Natural Products, Department of Pharmacy, School of Health Sciences, National and Kapodistrian University of Athens, Panepistimiopolis Zografou, 15771 Athens, Greece
| | - Vassilios Roussis
- Section of Pharmacognosy and Chemistry of Natural Products, Department of Pharmacy, School of Health Sciences, National and Kapodistrian University of Athens, Panepistimiopolis Zografou, 15771 Athens, Greece
| | - Efstathia Ioannou
- Section of Pharmacognosy and Chemistry of Natural Products, Department of Pharmacy, School of Health Sciences, National and Kapodistrian University of Athens, Panepistimiopolis Zografou, 15771 Athens, Greece
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Carnovali M, Ciavatta ML, Mollo E, Roussis V, Banfi G, Carbone M, Mariotti M. Aerophobin-1 from the Marine Sponge Aplysina aerophoba Modulates Osteogenesis in Zebrafish Larvae. Mar Drugs 2022; 20:md20020135. [PMID: 35200664 PMCID: PMC8880152 DOI: 10.3390/md20020135] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2022] [Revised: 01/31/2022] [Accepted: 02/08/2022] [Indexed: 02/08/2023] Open
Abstract
Longer life expectancy has led to an increase in efforts directed to the discovery of new healing agents for disorders related to aging, such as bone diseases. Harboring an incredible variety of bioactive metabolites, marine organisms are standing out as fruitful sources also in this therapeutic field. On the other hand, the in vivo zebrafish model has proven to be an excellent low-cost screening platform for the fast identification of molecules able to regulate bone development. By using zebrafish larvae as a mineralization model, we have thus evaluated the effects of the crude acetonic extract from the marine sponge Aplysina aerophoba and its bromotyrosine components on bone development. Obtained results led to the selection of aerophobin-1 (1) as a promising candidate for applications in regenerative medicine, paving the way for the development of a novel therapeutic option in osteoporosis treatment.
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Affiliation(s)
- Marta Carnovali
- IRCCS Istituto Ortopedico Galeazzi, Via R. Galeazzi 4, 20161 Milano, Italy; (M.C.); (G.B.)
| | - Maria Letizia Ciavatta
- Consiglio Nazionale delle Ricerche—Istituto di Chimica Biomolecolare (CNR-ICB), Via Campi Flegrei 34, 80078 Pozzuoli (NA), Italy; (M.L.C.); (E.M.)
| | - Ernesto Mollo
- Consiglio Nazionale delle Ricerche—Istituto di Chimica Biomolecolare (CNR-ICB), Via Campi Flegrei 34, 80078 Pozzuoli (NA), Italy; (M.L.C.); (E.M.)
| | - Vassilios Roussis
- Section of Pharmacognosy and Chemistry of Natural Products, Department of Pharmacy, National and Kapodistrian University of Athens, Panepistimiopolis Zografou, 15771 Athens, Greece;
| | - Giuseppe Banfi
- IRCCS Istituto Ortopedico Galeazzi, Via R. Galeazzi 4, 20161 Milano, Italy; (M.C.); (G.B.)
- School of Medicine, Vita-Salute San Raffaele University, Via Olgettina 58, 20132 Milano, Italy
| | - Marianna Carbone
- Consiglio Nazionale delle Ricerche—Istituto di Chimica Biomolecolare (CNR-ICB), Via Campi Flegrei 34, 80078 Pozzuoli (NA), Italy; (M.L.C.); (E.M.)
- Correspondence: (M.C.); (M.M.); Tel.: +39-08-1867-5227 (M.C.); +39-02-9647-4369 (M.M.)
| | - Massimo Mariotti
- IRCCS Istituto Ortopedico Galeazzi, Via R. Galeazzi 4, 20161 Milano, Italy; (M.C.); (G.B.)
- Dipartimento di Scienze Biomediche, Chirurgiche ed Odontoiatriche, Università Degli Studi di Milano, Via della Commenda 10, 20122 Milano, Italy
- Correspondence: (M.C.); (M.M.); Tel.: +39-08-1867-5227 (M.C.); +39-02-9647-4369 (M.M.)
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15
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Podolean I, Coman SM, Bucur C, Teodorescu C, Kikionis S, Ioannou E, Roussis V, Primo A, Garcia H, Parvulescu VI. Catalytic transformation of the marine polysaccharide ulvan into rare sugars, tartaric and succinic acids. Catal Today 2022. [DOI: 10.1016/j.cattod.2020.06.086] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Quémener M, Kikionis S, Fauchon M, Toueix Y, Aulanier F, Makris AM, Roussis V, Ioannou E, Hellio C. Antifouling Activity of Halogenated Compounds Derived from the Red Alga Sphaerococcus coronopifolius: Potential for the Development of Environmentally Friendly Solutions. Mar Drugs 2021; 20:md20010032. [PMID: 35049887 PMCID: PMC8778584 DOI: 10.3390/md20010032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2021] [Revised: 12/23/2021] [Accepted: 12/23/2021] [Indexed: 11/24/2022] Open
Abstract
Nowadays, biofouling is responsible for enormous economic losses in the maritime sector, and its treatment with conventional antifouling paints is causing significant problems to the environment. Biomimetism and green chemistry approaches are very promising research strategies for the discovery of new antifouling compounds. This study focused on the red alga Sphaerococcus coronopifolius, which is known as a producer of bioactive secondary metabolites. Fifteen compounds, including bromosphaerol (1), were tested against key marine biofoulers (five marine bacteria and three microalgae) and two enzymes associated with the adhesion process in macroalgae and invertebrates. Each metabolite presented antifouling activity against at least one organism/enzyme. This investigation also revealed that two compounds, sphaerococcinol A (4) and 14R-hydroxy-13,14-dihydro-sphaerococcinol A (5), were the most potent compounds without toxicity towards oyster larvae used as non-target organisms. These compounds are of high potential as they are active towards key biofoulers and could be produced by a cultivable alga, a fact that is important from the green chemistry point of view.
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Affiliation(s)
- Maxence Quémener
- Laboratoire des Sciences de l’Environnement Marin (LEMAR), Université de Brest, CNRS, IRD, Ifremer, F-29280 Plouzané, France; (M.Q.); (M.F.); (Y.T.); (F.A.)
| | - Stefanos Kikionis
- Section of Pharmacognosy and Chemistry of Natural Products, Department of Pharmacy, National and Kapodistrian University of Athens, Panepistimiopolis Zografou, 15771 Athens, Greece; (S.K.); (V.R.)
| | - Marilyne Fauchon
- Laboratoire des Sciences de l’Environnement Marin (LEMAR), Université de Brest, CNRS, IRD, Ifremer, F-29280 Plouzané, France; (M.Q.); (M.F.); (Y.T.); (F.A.)
| | - Yannick Toueix
- Laboratoire des Sciences de l’Environnement Marin (LEMAR), Université de Brest, CNRS, IRD, Ifremer, F-29280 Plouzané, France; (M.Q.); (M.F.); (Y.T.); (F.A.)
| | - Fanny Aulanier
- Laboratoire des Sciences de l’Environnement Marin (LEMAR), Université de Brest, CNRS, IRD, Ifremer, F-29280 Plouzané, France; (M.Q.); (M.F.); (Y.T.); (F.A.)
| | - Antonios M. Makris
- Institute of Applied Biosciences, Centre for Research & Technology, Hellas (CERTH), 570 01 Thessaloniki, Greece;
| | - Vassilios Roussis
- Section of Pharmacognosy and Chemistry of Natural Products, Department of Pharmacy, National and Kapodistrian University of Athens, Panepistimiopolis Zografou, 15771 Athens, Greece; (S.K.); (V.R.)
| | - Efstathia Ioannou
- Section of Pharmacognosy and Chemistry of Natural Products, Department of Pharmacy, National and Kapodistrian University of Athens, Panepistimiopolis Zografou, 15771 Athens, Greece; (S.K.); (V.R.)
- Correspondence: (E.I.); (C.H.)
| | - Claire Hellio
- Laboratoire des Sciences de l’Environnement Marin (LEMAR), Université de Brest, CNRS, IRD, Ifremer, F-29280 Plouzané, France; (M.Q.); (M.F.); (Y.T.); (F.A.)
- Correspondence: (E.I.); (C.H.)
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Prousis KC, Kikionis S, Ioannou E, Morgana S, Faimali M, Piazza V, Calogeropoulou T, Roussis V. Synthesis and Antifouling Activity Evaluation of Analogs of Bromosphaerol, a Brominated Diterpene Isolated from the Red Alga Sphaerococcus coronopifolius. Mar Drugs 2021; 20:md20010007. [PMID: 35049862 PMCID: PMC8781426 DOI: 10.3390/md20010007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2021] [Revised: 12/09/2021] [Accepted: 12/14/2021] [Indexed: 11/21/2022] Open
Abstract
Marine biofouling is an epibiotic biological process that affects almost any kind of submerged surface, causing globally significant economic problems mainly for the shipping industry and aquaculture companies, and its prevention so far has been associated with adverse environmental effects for non-target organisms. Previously, we have identified bromosphaerol (1), a brominated diterpene isolated from the red alga Sphaerococcus coronopifolius, as a promising agent with significant antifouling activity, exerting strong anti-settlement activity against larvae of Amphibalanus (Balanus) amphitrite and very low toxicity. The significant antifouling activity and low toxicity of bromosphaerol (1) motivated us to explore its chemistry, aiming to optimize its antifouling potential through the preparation of a number of analogs. Following different synthetic routes, we successfully synthesized 15 structural analogs (2–16) of bromosphaerol (1), decorated with different functional groups. The anti-settlement activity (EC50) and the degree of toxicity (LC50) of the bromosphaerol derivatives were evaluated using cyprids and nauplii of the cirriped crustacean A. amphitrite as a model organism. Derivatives 2, 4, and 6–16 showed diverse levels of antifouling activity. Among them, compounds 9 and 13 can be considered as well-performing antifoulants, exerting their activity through a non-toxic mechanism.
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Affiliation(s)
- Kyriakos C. Prousis
- Institute of Chemical Biology, National Hellenic Research Foundation, 48 Vassileos Constantinou Avenue, 11653 Athens, Greece;
| | - Stefanos Kikionis
- Section of Pharmacognosy and Chemistry of Natural Products, Department of Pharmacy, National and Kapodistrian University of Athens, Panepistimiopolis Zografou, 15771 Athens, Greece; (S.K.); (E.I.)
| | - Efstathia Ioannou
- Section of Pharmacognosy and Chemistry of Natural Products, Department of Pharmacy, National and Kapodistrian University of Athens, Panepistimiopolis Zografou, 15771 Athens, Greece; (S.K.); (E.I.)
| | - Silvia Morgana
- Institute for the Study of Anthropic Impacts and Sustainability in Marine Environment (IAS), National Research Council (CNR), Via De Marini 6, 16149 Genova, Italy; (S.M.); (M.F.)
| | - Marco Faimali
- Institute for the Study of Anthropic Impacts and Sustainability in Marine Environment (IAS), National Research Council (CNR), Via De Marini 6, 16149 Genova, Italy; (S.M.); (M.F.)
| | - Veronica Piazza
- Institute for the Study of Anthropic Impacts and Sustainability in Marine Environment (IAS), National Research Council (CNR), Via De Marini 6, 16149 Genova, Italy; (S.M.); (M.F.)
- Correspondence: (V.P.); (T.C.); (V.R.); Tel.: +39-010-6475409 (V.P.); +30-210-7273833 (T.C.); +30-210-7274592 (V.R.)
| | - Theodora Calogeropoulou
- Institute of Chemical Biology, National Hellenic Research Foundation, 48 Vassileos Constantinou Avenue, 11653 Athens, Greece;
- Correspondence: (V.P.); (T.C.); (V.R.); Tel.: +39-010-6475409 (V.P.); +30-210-7273833 (T.C.); +30-210-7274592 (V.R.)
| | - Vassilios Roussis
- Section of Pharmacognosy and Chemistry of Natural Products, Department of Pharmacy, National and Kapodistrian University of Athens, Panepistimiopolis Zografou, 15771 Athens, Greece; (S.K.); (E.I.)
- Correspondence: (V.P.); (T.C.); (V.R.); Tel.: +39-010-6475409 (V.P.); +30-210-7273833 (T.C.); +30-210-7274592 (V.R.)
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Tziveleka LA, Tammam MA, Tzakou O, Roussis V, Ioannou E. Metabolites with Antioxidant Activity from Marine Macroalgae. Antioxidants (Basel) 2021; 10:1431. [PMID: 34573063 PMCID: PMC8470618 DOI: 10.3390/antiox10091431] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2021] [Revised: 08/30/2021] [Accepted: 09/03/2021] [Indexed: 02/06/2023] Open
Abstract
Reactive oxygen species (ROS) attack biological molecules, such as lipids, proteins, enzymes, DNA, and RNA, causing cellular and tissue damage. Hence, the disturbance of cellular antioxidant homeostasis can lead to oxidative stress and the onset of a plethora of diseases. Macroalgae, growing in stressful conditions under intense exposure to UV radiation, have developed protective mechanisms and have been recognized as an important source of secondary metabolites and macromolecules with antioxidant activity. In parallel, the fact that many algae can be cultivated in coastal areas ensures the provision of sufficient quantities of fine chemicals and biopolymers for commercial utilization, rendering them a viable source of antioxidants. This review focuses on the progress made concerning the discovery of antioxidant compounds derived from marine macroalgae, covering the literature up to December 2020. The present report presents the antioxidant potential and biogenetic origin of 301 macroalgal metabolites, categorized according to their chemical classes, highlighting the mechanisms of antioxidative action when known.
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Affiliation(s)
- Leto-Aikaterini Tziveleka
- Section of Pharmacognosy and Chemistry of Natural Products, Department of Pharmacy, National and Kapodistrian University of Athens, Panepistimiopolis Zografou, 15771 Athens, Greece; (L.-A.T.); (M.A.T.); (O.T.); (V.R.)
| | - Mohamed A. Tammam
- Section of Pharmacognosy and Chemistry of Natural Products, Department of Pharmacy, National and Kapodistrian University of Athens, Panepistimiopolis Zografou, 15771 Athens, Greece; (L.-A.T.); (M.A.T.); (O.T.); (V.R.)
- Department of Biochemistry, Faculty of Agriculture, Fayoum University, Fayoum 63514, Egypt
| | - Olga Tzakou
- Section of Pharmacognosy and Chemistry of Natural Products, Department of Pharmacy, National and Kapodistrian University of Athens, Panepistimiopolis Zografou, 15771 Athens, Greece; (L.-A.T.); (M.A.T.); (O.T.); (V.R.)
| | - Vassilios Roussis
- Section of Pharmacognosy and Chemistry of Natural Products, Department of Pharmacy, National and Kapodistrian University of Athens, Panepistimiopolis Zografou, 15771 Athens, Greece; (L.-A.T.); (M.A.T.); (O.T.); (V.R.)
| | - Efstathia Ioannou
- Section of Pharmacognosy and Chemistry of Natural Products, Department of Pharmacy, National and Kapodistrian University of Athens, Panepistimiopolis Zografou, 15771 Athens, Greece; (L.-A.T.); (M.A.T.); (O.T.); (V.R.)
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19
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Gruskiene R, Kavleiskaja T, Staneviciene R, Kikionis S, Ioannou E, Serviene E, Roussis V, Sereikaite J. Nisin-Loaded Ulvan Particles: Preparation and Characterization. Foods 2021; 10:foods10051007. [PMID: 34064524 PMCID: PMC8147952 DOI: 10.3390/foods10051007] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2021] [Revised: 04/27/2021] [Accepted: 05/01/2021] [Indexed: 11/17/2022] Open
Abstract
Nisin is an attractive alternative to chemical preservatives in the food industry. It is a cationic peptide of 34 amino acid residues that exhibits antimicrobial activity against Gram-positive bacteria. To ensure nisin stability in food matrices, new nisin-loaded ulvan particles were developed by the complexation method. The interaction of nisin with ulvan was demonstrated by FT-IR spectroscopy and differential scanning calorimetry. The encapsulation efficiency was calculated at different pH values within the range of 4.0–7.0 and was found to have the highest value at pH 7.0. The size and surface charge of particles fabricated at different concentrations of nisin and pH values were determined. Nisin-loaded ulvan particles exhibited antimicrobial activity against Gram-positive bacteria comparable to that of free nisin. Therefore, the developed complexes have the potential for application as biopreservatives in the food industry. For the first time, the potential of ulvan as a carrier of antimicrobial agent nisin was demonstrated.
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Affiliation(s)
- Ruta Gruskiene
- Department of Chemistry and Bioengineering, Vilnius Gediminas Technical University, 10221 Vilnius, Lithuania; (R.G.); (E.S.)
| | | | - Ramune Staneviciene
- Laboratory of Genetics, Institute of Botany, Nature Research Centre, 08412 Vilnius, Lithuania;
| | - Stefanos Kikionis
- Section of Pharmacognosy and Chemistry of Natural Products, Department of Pharmacy, National and Kapodistrian University of Athens, Panepistimiopolis Zografou, 15771 Athens, Greece; (S.K.); (E.I.); (V.R.)
| | - Efstathia Ioannou
- Section of Pharmacognosy and Chemistry of Natural Products, Department of Pharmacy, National and Kapodistrian University of Athens, Panepistimiopolis Zografou, 15771 Athens, Greece; (S.K.); (E.I.); (V.R.)
| | - Elena Serviene
- Department of Chemistry and Bioengineering, Vilnius Gediminas Technical University, 10221 Vilnius, Lithuania; (R.G.); (E.S.)
- Laboratory of Genetics, Institute of Botany, Nature Research Centre, 08412 Vilnius, Lithuania;
| | - Vassilios Roussis
- Section of Pharmacognosy and Chemistry of Natural Products, Department of Pharmacy, National and Kapodistrian University of Athens, Panepistimiopolis Zografou, 15771 Athens, Greece; (S.K.); (E.I.); (V.R.)
| | - Jolanta Sereikaite
- Department of Chemistry and Bioengineering, Vilnius Gediminas Technical University, 10221 Vilnius, Lithuania; (R.G.); (E.S.)
- Correspondence:
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20
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Vasilopoulou MΑ, Ioannou E, Roussis V, Chondrogianni N. Modulation of the ubiquitin-proteasome system by marine natural products. Redox Biol 2021; 41:101897. [PMID: 33640701 PMCID: PMC7921624 DOI: 10.1016/j.redox.2021.101897] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2020] [Revised: 02/05/2021] [Accepted: 02/10/2021] [Indexed: 02/07/2023] Open
Abstract
The ubiquitin-proteasome system (UPS) is a key player in the maintenance of cellular protein homeostasis (proteostasis). Since proteasome function declines upon aging leading to the acceleration of its progression and the manifestation of age-related pathologies, many attempts have been performed towards proteasome activation as a strategy to promote healthspan and longevity. The marine environment hosts a plethora of organisms that produce a vast array of primary and secondary metabolites, the majority of which are unique, exhibiting a wide spectrum of biological activities. The fact that these biologically important compounds are also present in edible marine organisms has sparked the interest for elucidating their potential health-related applications. In this review, we focus on the antioxidant, anti-aging, anti-aggregation and anti-photoaging properties of various marine constituents. We further discuss representatives of marine compounds classes with regard to their potential (direct or indirect) action on UPS components that could serve as UPS modulators and exert beneficial effects on conditions such as oxidative stress, aging and age-related diseases.
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Affiliation(s)
- Mary Α Vasilopoulou
- Institute of Chemical Biology, National Hellenic Research Foundation, 48 Vassileos Constantinou Ave., Athens, 11635, Greece; Department of Biochemistry and Biotechnology, University of Thessaly, Biopolis, 41500, Larisa, Greece.
| | - Efstathia Ioannou
- Section of Pharmacognosy and Chemistry of Natural Products, Department of Pharmacy, School of Health Sciences, National and Kapodistrian University of Athens, Panepistimiopolis Zografou, Athens, 15771, Greece.
| | - Vassilios Roussis
- Section of Pharmacognosy and Chemistry of Natural Products, Department of Pharmacy, School of Health Sciences, National and Kapodistrian University of Athens, Panepistimiopolis Zografou, Athens, 15771, Greece.
| | - Niki Chondrogianni
- Institute of Chemical Biology, National Hellenic Research Foundation, 48 Vassileos Constantinou Ave., Athens, 11635, Greece.
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21
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Koutsaviti A, Toutoungy S, Saliba R, Loupassaki S, Tzakou O, Roussis V, Ioannou E. Antioxidant Potential of Pine Needles: A Systematic Study on the Essential Oils and Extracts of 46 Species of the Genus Pinus. Foods 2021; 10:foods10010142. [PMID: 33445574 PMCID: PMC7827367 DOI: 10.3390/foods10010142] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2020] [Revised: 01/04/2021] [Accepted: 01/08/2021] [Indexed: 12/15/2022] Open
Abstract
The antioxidant activity of the essential oils, as well as of the organic and hydroethanolic extracts, of the fresh needles of 54 pine taxa was evaluated using the peroxy-oxalate and luminol chemiluminescence assays. Among all evaluated essential oils, P. canariensis and P. attenuata displayed the highest levels of activity. P. contorta var. murrayana, followed by P. nigra var. caramanica, exhibited the highest antioxidant capacity among the organic extracts, while the most active hydroethanolic extract was that of P. nigra subsp. nigra. Based on the overall levels of activity, the latter taxon was selected for phytochemical analysis targeting the isolation of the bioactive constituents. As such, the organic extract of P. nigra subsp. nigra was subjected to chromatographic separations to yield 11 secondary metabolites (1-11) that were evaluated for their antioxidant activity. Nonetheless, the isolated compounds were found to be less active than the crude extract, thus suggesting the potential role of synergism.
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Affiliation(s)
- Aikaterini Koutsaviti
- Section of Pharmacognosy and Chemistry of Natural Products, Department of Pharmacy, National and Kapodistrian University of Athens, Panepistimiopolis Zografou, 15771 Athens, Greece; (A.K.); (O.T.); (V.R.)
| | - Samer Toutoungy
- Department of Food Quality and Chemistry of Natural Products, Mediterranean Agronomic Institute of Chania—Centre International de Hautes Etudes Agronomiques Méditerranéennes, 73100 Chania, Greece; (S.T.); (R.S.); (S.L.)
| | - Rouba Saliba
- Department of Food Quality and Chemistry of Natural Products, Mediterranean Agronomic Institute of Chania—Centre International de Hautes Etudes Agronomiques Méditerranéennes, 73100 Chania, Greece; (S.T.); (R.S.); (S.L.)
| | - Sofia Loupassaki
- Department of Food Quality and Chemistry of Natural Products, Mediterranean Agronomic Institute of Chania—Centre International de Hautes Etudes Agronomiques Méditerranéennes, 73100 Chania, Greece; (S.T.); (R.S.); (S.L.)
| | - Olga Tzakou
- Section of Pharmacognosy and Chemistry of Natural Products, Department of Pharmacy, National and Kapodistrian University of Athens, Panepistimiopolis Zografou, 15771 Athens, Greece; (A.K.); (O.T.); (V.R.)
| | - Vassilios Roussis
- Section of Pharmacognosy and Chemistry of Natural Products, Department of Pharmacy, National and Kapodistrian University of Athens, Panepistimiopolis Zografou, 15771 Athens, Greece; (A.K.); (O.T.); (V.R.)
| | - Efstathia Ioannou
- Section of Pharmacognosy and Chemistry of Natural Products, Department of Pharmacy, National and Kapodistrian University of Athens, Panepistimiopolis Zografou, 15771 Athens, Greece; (A.K.); (O.T.); (V.R.)
- Correspondence: ; Tel.: +30-210-727-4913
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22
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Kontostathi M, Isou S, Mostratos D, Vasdekis V, Demertzis N, Kourounakis A, Vitsos A, Kyriazi M, Melissos D, Tsitouris C, Karalis E, Klamarias L, Dania F, Papaioannou GT, Roussis V, Polychronopoulos E, Anastassopoulou J, Theophanides T, Rallis MC, Black HS. Influence of Omega-3 Fatty Acid-Rich Fish Oils on Hyperlipidemia: Effect of Eel, Sardine, Trout, and Cod Oils on Hyperlipidemic Mice. J Med Food 2020; 24:749-755. [PMID: 33370175 PMCID: PMC8311977 DOI: 10.1089/jmf.2020.0114] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Dyslipidemia is one of the most important cardiovascular disease (CVD) risk factors. Polyunsaturated fatty acids (FAs), and especially omega-3 FAs, could significantly contribute to the management of dyslipidemia and the prevention of CVD. The anti-hyperlipidemic effect of selected fish oils (eel, sardine, trout, cod liver) was comparatively evaluated in a high fat diet (HFD)-fed mouse model. At the end of 30 days on the HFD, all animals were hyperlipidemic and were switched to a diet consisting of 90% standard rodent chow plus 10% of oil from eel, sardine, cod liver, or trout. At the end of 60 days on these diets, blood glucose, total blood cholesterol, triglycerides (TGs), and high density lipoprotein (HDL) were quantitated. All diets, except sardine and standard rodent chow, showed statistically significant decreases in blood glucose from day 30 to 90. Total blood cholesterol decreased in all diets except the HFD group, which was continued on this diet until the end of the study. Eel and cod liver oil diets showed significant decreases in TGs. All dietary groups showed a decrease in HDL, but only the trout and standard chow groups exhibited statistically significant decreases. The fish oils tested here for effects on hyperlipidemia vary in per cent of omega-3 FAs and omega-6/-3 FA ratios as determined by gas chromatography Overall, smoked eel was the best source of omega-3 FA, with a balance of omega-6 FA, that ameliorated HFD-induced mixed hyperlipidemia.
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Affiliation(s)
- Martha Kontostathi
- Section of Pharmaceutical Technology, Department of Pharmacy, School of Health Sciences, National and Kapodistrian University of Athens, Athens, Greece
| | - Sofia Isou
- Section of Pharmaceutical Technology, Department of Pharmacy, School of Health Sciences, National and Kapodistrian University of Athens, Athens, Greece
| | - Dimitrios Mostratos
- Department of Statistics, Athens University of Economics and Business, Athens, Greece
| | - Vassilios Vasdekis
- Department of Statistics, Athens University of Economics and Business, Athens, Greece
| | - Nikolaos Demertzis
- Section of Pharmaceutical Technology, Department of Pharmacy, School of Health Sciences, National and Kapodistrian University of Athens, Athens, Greece
| | - Angeliki Kourounakis
- Section of Pharmaceutical Chemistry, Department of Pharmacy, School of Health Sciences, National and Kapodistrian University of Athens, Athens, Greece
| | - Andreas Vitsos
- Section of Pharmaceutical Technology, Department of Pharmacy, School of Health Sciences, National and Kapodistrian University of Athens, Athens, Greece
| | - Maria Kyriazi
- Section of Pharmaceutical Technology, Department of Pharmacy, School of Health Sciences, National and Kapodistrian University of Athens, Athens, Greece
| | | | | | - Evangelos Karalis
- Section of Pharmaceutical Technology, Department of Pharmacy, School of Health Sciences, National and Kapodistrian University of Athens, Athens, Greece
| | | | - Fotini Dania
- Section of Pharmaceutical Technology, Department of Pharmacy, School of Health Sciences, National and Kapodistrian University of Athens, Athens, Greece
| | - Georgios-Theodorou Papaioannou
- Section of Pharmaceutical Technology, Department of Pharmacy, School of Health Sciences, National and Kapodistrian University of Athens, Athens, Greece
| | - Vassilios Roussis
- Section of Pharmacognosy and Chemistry of Natural Products, Department of Pharmacy, School of Health Sciences, National and Kapodistrian University of Athens, Athens, Greece
| | - Evangelos Polychronopoulos
- Department of Nutrition and Dietetics, School of Health Science and Education, Harokopeion University, Athens, Greece
| | - Jane Anastassopoulou
- Radiation Chemistry and Biospectroscopy, Chemical Engineering School, National Technical University of Athens, Athens, Greece
| | - Theophilos Theophanides
- Radiation Chemistry and Biospectroscopy, Chemical Engineering School, National Technical University of Athens, Athens, Greece
| | - Michail-Christou Rallis
- Section of Pharmaceutical Technology, Department of Pharmacy, School of Health Sciences, National and Kapodistrian University of Athens, Athens, Greece
| | - Homer S Black
- Department of Dermatology, Baylor College of Medicine, Houston, Texas, USA
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23
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Nikolaou P, Nasi G, Sulaiman I, Spatharas P, Kikionis S, Efentakis P, Ioannou E, Roussis V, Davidson S, Terpos E, Dimopoulos M, Kastritis E, Iconomidou V, Andreadou I. Al amyloidosis with cardiac involvement: cardiotoxicity of aggregation prone peptides deriving from variable domains of immunoglobulin light chains. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.0886] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Abstract
Background/Introduction
Light chain (AL) amyloidosis is an uncommon malignancy manifested by systemic extracellular deposition of immunoglobulin light chain fibrils. The cardiac phenotype is characterised by ventricular wall thickening and stands as the most prominent cause of morbidity and mortality. Although, it has been established that the circulating light chains directly impair cardiomyocyte function, the cytotoxic effect of specific amyloidogenic peptides that may appear due to excessive cleavage of light chains remains unspecified.
Purpose
In the present work, we aimed to detect amyloidogenic “hot-spots” on the variable domains of light chains associated with cardiac AL amyloidosis (IGLV1-44 and IGLV3-01) or inferior outcomes (IGLV6-57) and define their cytotoxic effect in vitro.
Methods
At first, we used the curated database ALBase and we performed a multiple sequence alignment of the IGLV1-44, IGLV3-01 and IGLV6-57 inputs that derived only from patients with AL amyloidosis. “Aggregation-prone” hot-spots in the conserved amino acid sequences were identified with the aid of AMYLPRED2, a tool which combines 11 independent computational methods and provides a consensus result of potent amyloidogenic regions. Five peptides were rationally selected and synthetically produced in order to be tested in vitro. The amyloidogenic properties of the peptides were evaluated with Transmission Electron Microscopy and Congo red staining, while the rate of fibril formation at lower concentrations was monitored with Thioflavin T and confirmed with Scanning Electron Microscopy. In order to assess the cytotoxic effect of the non-polymerized peptides, H9C2 cells were incubated with the peptides for 24 hours at 200μg/mL and 100μg/mL and cell death was determined by lactate dehydrogenase release assay.
Results
Interestingly, sequence alignment on the variable domains of cardiac related light chains revealed the presence of several conserved domains in patients with AL amyloidosis. The chosen peptides were proven to be amyloidogenic suggesting that the variable domains share common amyloidogenic cores. Treatment of H9C2 cells with the peptides at 200μg/mL led to significant reduction in cell viability compared to vehicle treated cells (p<0.001). Two of the peptides deriving from the IGLV6-57 and IGLV3-01 significantly increased cell death at 100μg/mL (p<0.01 and p<0.001 respectively). During the 24h treatment the tested peptides comprised of soluble species and not amyloid fibrils suggesting that monomeric and oligomeric intermediates are highly toxic.
Conclusion
We discovered five novel amyloidogenic prone regions of cardiac related variable domains that are associated with cellular toxicity and could be exploited for targeted therapeutic interventions.
Funding Acknowledgement
Type of funding source: None
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Affiliation(s)
- P.E Nikolaou
- School of Pharmacy, National and Kapodistrian University of Athens, Athens, Greece
| | - G.I Nasi
- National and Kapodistrian University of Athens, School of Biology, Athens, Greece
| | - I Sulaiman
- School of Pharmacy, National and Kapodistrian University of Athens, Athens, Greece
| | - P Spatharas
- National and Kapodistrian University of Athens, School of Biology, Athens, Greece
| | - S Kikionis
- School of Pharmacy, National and Kapodistrian University of Athens, Athens, Greece
| | - P Efentakis
- School of Pharmacy, National and Kapodistrian University of Athens, Athens, Greece
| | - E Ioannou
- School of Pharmacy, National and Kapodistrian University of Athens, Athens, Greece
| | - V Roussis
- School of Pharmacy, National and Kapodistrian University of Athens, Athens, Greece
| | - S.M Davidson
- University College London, The Hatter Cardiovascular Institute, London, United Kingdom
| | - E Terpos
- National and Kapodistrian University of Athens, Medical School, Athens, Greece
| | - M.A Dimopoulos
- National and Kapodistrian University of Athens, Medical School, Athens, Greece
| | - E Kastritis
- National and Kapodistrian University of Athens, Medical School, Athens, Greece
| | - V.I Iconomidou
- National and Kapodistrian University of Athens, School of Biology, Athens, Greece
| | - I Andreadou
- School of Pharmacy, National and Kapodistrian University of Athens, Athens, Greece
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24
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Vitale RM, Thellung S, Tinto F, Solari A, Gatti M, Nuzzo G, Ioannou E, Roussis V, Ciavatta ML, Manzo E, Florio T, Amodeo P. Identification of the hydantoin alkaloids parazoanthines as novel CXCR4 antagonists by computational and in vitro functional characterization. Bioorg Chem 2020; 105:104337. [PMID: 33113408 DOI: 10.1016/j.bioorg.2020.104337] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2020] [Revised: 09/19/2020] [Accepted: 09/30/2020] [Indexed: 12/14/2022]
Abstract
CXCR4 chemokine receptor represents an attractive pharmacological target due to its key role in cancer metastasis and inflammatory diseases. Starting from our previously-developed pharmacophoric model, we applied a combined computational and experimental approach that led to the identification of the hydantoin alkaloids parazoanthines, isolated from the Mediterranean Sea anemone Parazoanthus axinellae, as novel CXCR4 antagonists. Parazoanthine analogues were then synthesized to evaluate the contribution of functional groups to the overall activity. Within the panel of synthesized natural and non-natural parazoanthines, parazoanthine-B was identified as the most potent CXCR4 antagonist with an IC50 value of 9.3 nM, even though all the investigated compounds were able to antagonize in vitro the down-stream effects of CXC12, albeit with variable potency and efficacy. The results of our study strongly support this class of small molecules as potent CXCR4 antagonists in tumoral pathologies characterized by an overexpression of this receptor. Furthermore, their structure-activity relationships allowed the optimization of our pharmacophoric model, useful for large-scale in silico screening.
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Affiliation(s)
- Rosa Maria Vitale
- Institute of Biomolecular Chemistry, National Research Council (ICB-CNR), Via Campi Flegrei 34, 80078, Pozzuoli, (NA), Italy
| | - Stefano Thellung
- Section of Pharmacology, Department of Internal Medicine, University of Genova, 16132 Genova, Italy
| | - Francesco Tinto
- Institute of Biomolecular Chemistry, National Research Council (ICB-CNR), Via Campi Flegrei 34, 80078, Pozzuoli, (NA), Italy
| | - Agnese Solari
- Section of Pharmacology, Department of Internal Medicine, University of Genova, 16132 Genova, Italy
| | - Monica Gatti
- Section of Pharmacology, Department of Internal Medicine, University of Genova, 16132 Genova, Italy
| | - Genoveffa Nuzzo
- Institute of Biomolecular Chemistry, National Research Council (ICB-CNR), Via Campi Flegrei 34, 80078, Pozzuoli, (NA), Italy
| | - Efstathia Ioannou
- Department of Pharmacognosy and Chemistry of Natural Products, Faculty of Pharmacy, School of Health Sciences, National and Kapodistrian University of Athens, Panepistimiopolis Zografou, Athens 15771, Greece
| | - Vassilios Roussis
- Department of Pharmacognosy and Chemistry of Natural Products, Faculty of Pharmacy, School of Health Sciences, National and Kapodistrian University of Athens, Panepistimiopolis Zografou, Athens 15771, Greece
| | - Maria Letizia Ciavatta
- Institute of Biomolecular Chemistry, National Research Council (ICB-CNR), Via Campi Flegrei 34, 80078, Pozzuoli, (NA), Italy
| | - Emiliano Manzo
- Institute of Biomolecular Chemistry, National Research Council (ICB-CNR), Via Campi Flegrei 34, 80078, Pozzuoli, (NA), Italy.
| | - Tullio Florio
- Section of Pharmacology, Department of Internal Medicine, University of Genova, 16132 Genova, Italy; IRCCS Policlinico San Martino, 16132 Genova, Italy.
| | - Pietro Amodeo
- Institute of Biomolecular Chemistry, National Research Council (ICB-CNR), Via Campi Flegrei 34, 80078, Pozzuoli, (NA), Italy.
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25
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Daskalaki MG, Bafiti P, Kikionis S, Laskou M, Roussis V, Ioannou E, Kampranis SC, Tsatsanis C. Disulfides from the Brown Alga Dictyopteris membranacea Suppress M1 Macrophage Activation by Inducing AKT and Suppressing MAPK/ERK Signaling Pathways. Mar Drugs 2020; 18:E527. [PMID: 33114361 PMCID: PMC7690855 DOI: 10.3390/md18110527] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [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: 09/23/2020] [Revised: 10/20/2020] [Accepted: 10/22/2020] [Indexed: 12/13/2022] Open
Abstract
Inflammation is part of the organism's response to deleterious stimuli, such as pathogens, damaged cells, or irritants. Macrophages orchestrate the inflammatory response obtaining different activation phenotypes broadly defined as M1 (pro-inflammatory) or M2 (homeostatic) phenotypes, which contribute to pathogen elimination or disease pathogenesis. The type and magnitude of the response of macrophages are shaped by endogenous and exogenous factors and can be affected by nutrients or therapeutic agents. Multiple studies have shown that natural products possess immunomodulatory properties and that marine algae contain products with such action. We have previously shown that disulfides isolated from Dictyopteris membranacea suppress nitric oxide (NO) production from activated macrophages, suggesting potential anti-inflammatory actions. In this study, we investigated the anti-inflammatory mechanism of action of bis(5-methylthio-3-oxo-undecyl) disulfide (1), 5-methylthio-1-(3-oxo-undecyl) disulfanylundecan-3-one (2) and 3-hexyl-4,5-dithiocycloheptanone (3). Our results showed that all three compounds inhibited M1 activation of macrophages by down regulating the production of pro-inflammatory cytokines TNFα, IL-6 and IL-12, suppressed the expression of the NO converting enzyme iNOS, and enhanced expression of the M2 activation markers Arginase1 and MRC1. Moreover, disulfides 1 and 2 suppressed the expression of glucose transporters GLUT1 and GLUT3, suggesting that compounds 1 and 2 may affect cell metabolism. We showed that this was due to AKT/MAPK/ERK signaling pathway modulation and specifically by elevated AKT phosphorylation and MAPK/ERK signal transduction reduction. Hence, disulfides 1-3 can be considered as potent candidates for the development of novel anti-inflammatory molecules with homeostatic properties.
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Affiliation(s)
- Maria G Daskalaki
- Laboratory of Clinical Chemistry, School of Medicine, University of Crete, 70013 Heraklion, Greece
- Institute of Molecular Biology and Biotechnology, FORTH, 71100 Heraklion, Greece
| | - Paraskevi Bafiti
- Laboratory of Clinical Chemistry, School of Medicine, University of Crete, 70013 Heraklion, Greece
| | - Stefanos Kikionis
- Section of Pharmacognosy and Chemistry of Natural Products, Department of Pharmacy, National and Kapodistrian University of Athens, Panepistimiopolis Zographou, 15771 Athens, Greece
| | - Maria Laskou
- Laboratory of Clinical Chemistry, School of Medicine, University of Crete, 70013 Heraklion, Greece
| | - Vassilios Roussis
- Section of Pharmacognosy and Chemistry of Natural Products, Department of Pharmacy, National and Kapodistrian University of Athens, Panepistimiopolis Zographou, 15771 Athens, Greece
| | - Efstathia Ioannou
- Section of Pharmacognosy and Chemistry of Natural Products, Department of Pharmacy, National and Kapodistrian University of Athens, Panepistimiopolis Zographou, 15771 Athens, Greece
| | - Sotirios C Kampranis
- Section of Plant Biochemistry, Department of Plant and Environmental Sciences, University of Copenhagen, Thorvaldsensvej 40, 1871 Frederiksberg, Denmark
| | - Christos Tsatsanis
- Laboratory of Clinical Chemistry, School of Medicine, University of Crete, 70013 Heraklion, Greece
- Institute of Molecular Biology and Biotechnology, FORTH, 71100 Heraklion, Greece
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26
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Moon HC, Choi H, Kikionis S, Seo J, Youn W, Ioannou E, Han SY, Cho H, Roussis V, Choi IS. Fabrication and Characterization of Neurocompatible Ulvan-Based Layer-by-Layer Films. Langmuir 2020; 36:11610-11617. [PMID: 32964713 DOI: 10.1021/acs.langmuir.0c02173] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Construction of extracellular matrix-mimetic nanofilms has considerable potential in biomedical and nanomedicinal fields. In this work, we fabricated neurocompatible layer-by-layer (LbL) films based on ulvan (ULV), a highly sulfated polysaccharide having compositional similarity to glycosaminoglycans that play important functional roles in the brain. ULV was durably assembled as a film with chitosan, another marine-derived polysaccharide, and the film enabled the stable adhesion of primary hippocampal neurons with high viability, comparable to the conventional poly-d-lysine surface. Notably, the ULV-based LbL films accelerated neurite outgrowth and selectively suppressed the adhesion of astrocytes, highlighting its potential as an advanced platform for neural implants and devices.
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Affiliation(s)
- Hee Chul Moon
- Department of Chemistry, KAIST, Daejeon 34141, Korea
| | - Hyunwoo Choi
- Department of Chemistry, KAIST, Daejeon 34141, Korea
| | - Stefanos Kikionis
- Section of Pharmacognosy and Chemistry of Natural Products, Department of Pharmacy, National and Kapodistrian University of Athens, Panepistimiopolis Zografou, Athens 15771, Greece
| | - Jeongyeon Seo
- Department of Chemistry, KAIST, Daejeon 34141, Korea
| | - Wongu Youn
- Department of Chemistry, KAIST, Daejeon 34141, Korea
| | - Efstathia Ioannou
- Section of Pharmacognosy and Chemistry of Natural Products, Department of Pharmacy, National and Kapodistrian University of Athens, Panepistimiopolis Zografou, Athens 15771, Greece
| | | | | | - Vassilios Roussis
- Section of Pharmacognosy and Chemistry of Natural Products, Department of Pharmacy, National and Kapodistrian University of Athens, Panepistimiopolis Zografou, Athens 15771, Greece
| | - Insung S Choi
- Department of Chemistry, KAIST, Daejeon 34141, Korea
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Sofrona E, Tziveleka LA, Harizani M, Koroli P, Sfiniadakis I, Roussis V, Rallis M, Ioannou E. In Vivo Evaluation of the Wound Healing Activity of Extracts and Bioactive Constituents of the Marine Isopod Ceratothoa oestroides. Mar Drugs 2020; 18:E219. [PMID: 32325719 PMCID: PMC7230750 DOI: 10.3390/md18040219] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [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: 03/19/2020] [Revised: 04/10/2020] [Accepted: 04/16/2020] [Indexed: 12/26/2022] Open
Abstract
Wound healing is a fundamental response to tissue injury and a number of natural products has been found to accelerate the healing process. Herein, we report the preparation of a series of different polarity (organic and aqueous) extracts of the marine isopod Ceratothoa oestroides and the in vivo evaluation of their wound healing activity after topical administration of ointments incorporating the various extracts on wounds inflicted on SKH-hr1 hairless mice. The most active extract was fractionated for enrichment in the bioactive constituents and the fractions were further evaluated for their wound healing activity, while their chemical profiles were analyzed. Wound healing was evaluated by clinical assessment, photo-documentation, histopathological analysis and measurement of biophysical skin parameters, such as transepidermal water loss (TEWL), hydration, elasticity, and skin thickness. The highest levels of activity were exerted by treatment of the wounds with a fraction rich in eicosapentaenoic acid (EPA), as well as myristic and palmitoleic acids. Topical application of the bioactive fraction on the wounds of mice resulted in complete wound closure with a skin of almost normal architecture without any inflammatory elements.
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Affiliation(s)
- Evgenia Sofrona
- Section of Pharmacognosy and Chemistry of Natural Products, Department of Pharmacy, School of Health Sciences, National and Kapodistrian University of Athens, 15771 Athens, Greece; (E.S.); (L.-A.T.); (M.H.); (V.R.)
- Section of Pharmaceutical Technology, Department of Pharmacy, School of Health Sciences, National and Kapodistrian University of Athens, 15784 Athens, Greece;
| | - Leto-Aikaterini Tziveleka
- Section of Pharmacognosy and Chemistry of Natural Products, Department of Pharmacy, School of Health Sciences, National and Kapodistrian University of Athens, 15771 Athens, Greece; (E.S.); (L.-A.T.); (M.H.); (V.R.)
| | - Maria Harizani
- Section of Pharmacognosy and Chemistry of Natural Products, Department of Pharmacy, School of Health Sciences, National and Kapodistrian University of Athens, 15771 Athens, Greece; (E.S.); (L.-A.T.); (M.H.); (V.R.)
| | - Panagiota Koroli
- Section of Pharmaceutical Technology, Department of Pharmacy, School of Health Sciences, National and Kapodistrian University of Athens, 15784 Athens, Greece;
| | | | - Vassilios Roussis
- Section of Pharmacognosy and Chemistry of Natural Products, Department of Pharmacy, School of Health Sciences, National and Kapodistrian University of Athens, 15771 Athens, Greece; (E.S.); (L.-A.T.); (M.H.); (V.R.)
| | - Michail Rallis
- Section of Pharmaceutical Technology, Department of Pharmacy, School of Health Sciences, National and Kapodistrian University of Athens, 15784 Athens, Greece;
| | - Efstathia Ioannou
- Section of Pharmacognosy and Chemistry of Natural Products, Department of Pharmacy, School of Health Sciences, National and Kapodistrian University of Athens, 15771 Athens, Greece; (E.S.); (L.-A.T.); (M.H.); (V.R.)
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Tziveleka LA, Sapalidis A, Kikionis S, Aggelidou E, Demiri E, Kritis A, Ioannou E, Roussis V. Hybrid Sponge-Like Scaffolds Based on Ulvan and Gelatin: Design, Characterization and Evaluation of Their Potential Use in Bone Tissue Engineering. Materials (Basel) 2020; 13:E1763. [PMID: 32283814 PMCID: PMC7178717 DOI: 10.3390/ma13071763] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/16/2020] [Revised: 04/01/2020] [Accepted: 04/08/2020] [Indexed: 01/01/2023]
Abstract
Ulvan, a bioactive natural sulfated polysaccharide, and gelatin, a collagen-derived biopolymer, have attracted interest for the preparation of biomaterials for different biomedical applications, due to their demonstrated compatibility for cell attachment and proliferation. Both ulvan and gelatin have exhibited osteoinductive potential, either alone or in combination with other materials. In the current work, a series of novel hybrid scaffolds based on crosslinked ulvan and gelatin was designed, prepared and characterized. Their mechanical performance, thermal stability, porosity, water-uptake and in vitro degradation ability were assessed, while their morphology was analyzed through scanning electron microscopy. The prepared hybrid ulvan/gelatin scaffolds were characterized by a highly porous and interconnected structure. Human adipose-derived mesenchymal stem cells (hADMSCs) were seeded in selected ulvan/gelatin hybrid scaffolds and their adhesion, survival, proliferation, and osteogenic differentiation efficiency was evaluated. Overall, it was found that the prepared hybrid sponge-like scaffolds could efficiently support mesenchymal stem cells' adhesion and proliferation, suggesting that such scaffolds could have potential uses in bone tissue engineering.
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Affiliation(s)
- Leto-Aikaterini Tziveleka
- Section of Pharmacognosy and Chemistry of Natural Products, Department of Pharmacy, National and Kapodistrian University of Athens, Panepistimiopolis Zografou, 15771 Athens, Greece; (L.-A.T.); (S.K.); (E.I.)
| | - Andreas Sapalidis
- Institute of Nanosciences and Nanotechnology, NCSR “Demokritos”, Aghia Paraskevi, 15310 Attiki, Greece;
| | - Stefanos Kikionis
- Section of Pharmacognosy and Chemistry of Natural Products, Department of Pharmacy, National and Kapodistrian University of Athens, Panepistimiopolis Zografou, 15771 Athens, Greece; (L.-A.T.); (S.K.); (E.I.)
| | - Eleni Aggelidou
- cGMP Regenerative Medicine Facility, Department of Physiology and Pharmacology, School of Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; (E.A.); (A.K.)
| | - Efterpi Demiri
- Department of Plastic Surgery, School of Medicine, Faculty of Health Sciences, Papageorgiou Hospital, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece;
| | - Aristeidis Kritis
- cGMP Regenerative Medicine Facility, Department of Physiology and Pharmacology, School of Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; (E.A.); (A.K.)
| | - Efstathia Ioannou
- Section of Pharmacognosy and Chemistry of Natural Products, Department of Pharmacy, National and Kapodistrian University of Athens, Panepistimiopolis Zografou, 15771 Athens, Greece; (L.-A.T.); (S.K.); (E.I.)
| | - Vassilios Roussis
- Section of Pharmacognosy and Chemistry of Natural Products, Department of Pharmacy, National and Kapodistrian University of Athens, Panepistimiopolis Zografou, 15771 Athens, Greece; (L.-A.T.); (S.K.); (E.I.)
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Meimeti E, Tentolouris N, Loupa C, Roussis V, Rallis M. Marine Isopod Ceratothoa Oestroides Extract: a Novel Treatment for Diabetic Foot Ulcers? Case Report of an Immunosuppressed Patient. Med Arch 2020; 73:131-133. [PMID: 31391704 PMCID: PMC6643357 DOI: 10.5455/medarh.2019.73.131-133] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
Introduction: Diabetic foot ulcer (DFU) is a common lower-extremity complication in patients with diabetes mellitus. A novel DFU treatment is tested by using an ointment containing as healing agent olive oil isopod Ceratothoa oestroidesextract. Case report: A 58 years old obese man,smoker, with a history of unregulated Type 2 Diabetes Mellitus, peripheral neuropathy and Hodgkin lymphoma was referred to Athens–Greece university hospital Laikon. The patient presented clinically with a lower extremity DFU and peripheral neuropathy with dysesthesia and disturbed sensation of hot and cold. He was treated with an ointment containing C. oestroides extract for five months, without any antimicrobial treatment. Therapy was evaluated by measurement of the transepidermal water loss, skin hydration, photo documentation and planimetry. At each patient’s visit, DFU presented a satisfactory healing process. Five months after treatment initiation the patient had complete healing of his DFU. Blood tests after treatment revealed a significant reduction of the levels of the inflammatory markers. Ulcer cultures did not reveal any microbial development neither before nor after treatment. Conclusion: The administration of the C. oestroides extract ointment proved to be effective in this case. Although these results should be further investigated, the reported case suggests a novel option for the management of neuropathic diabetic foot ulcers, especially in patients with severe co-morbidities.
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Affiliation(s)
- Evangelia Meimeti
- National and Kapodistrian University of Athens, Faculty of Pharmacy, Department of Pharmaceutical Technology Panepistimiopolis Zografou, Athens, Greece
| | - Nikolaos Tentolouris
- National and Kapodistrian University of Athens, 1st Department of Propaedeutic Internal Medicine, Medical School, Athens, Greece
| | - Chariclia Loupa
- Demetrios Voyatzoglou Diabetic Foot Clinic, A. Fleming Hospital, Athens, Greece
| | - Vassilios Roussis
- National and Kapodistrian University of Athens, Faculty of Pharmacy, Department of Pharmacognosy and Chemistry of Natural Products, Panepistimiopolis Zografou, Athens, Greece
| | - Michail Rallis
- National and Kapodistrian University of Athens, Faculty of Pharmacy, Department of Pharmaceutical Technology Panepistimiopolis Zografou, Athens, Greece
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Smyrniotopoulos V, de Andrade Tomaz AC, Vanderlei de Souza MDF, Leitão da Cunha EV, Kiss R, Mathieu V, Ioannou E, Roussis V. Halogenated Diterpenes with In Vitro Antitumor Activity from the Red Alga Sphaerococcus coronopifolius. Mar Drugs 2019; 18:E29. [PMID: 31905719 PMCID: PMC7024270 DOI: 10.3390/md18010029] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [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: 11/24/2019] [Revised: 12/24/2019] [Accepted: 12/25/2019] [Indexed: 11/17/2022] Open
Abstract
Eight new (1-8) structurally diverse diterpenes featuring five different carbocycles were isolated from the organic extracts of the red alga Sphaerococcus coronopifolius collected from the coastline of the Ionian Sea in Greece. The structures of the new natural products, seven of which were halogenated, and the relative configuration of their stereocenters were determined on the basis of comprehensive spectroscopic analyses, including NMR and HRMS data. Compounds 5 and 8 were found to possess in vitro antitumor activity against one murine and five human cancer cell lines with mean IC50 values 15 and 16 μM, respectively.
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Affiliation(s)
- Vangelis Smyrniotopoulos
- Section of Pharmacognosy and Chemistry of Natural Products, Department of Pharmacy, National and Kapodistrian University of Athens, Panepistimiopolis Zografou, 15771 Athens, Greece; (V.S.); (A.C.d.A.T.); (E.I.)
| | - Anna Cláudia de Andrade Tomaz
- Section of Pharmacognosy and Chemistry of Natural Products, Department of Pharmacy, National and Kapodistrian University of Athens, Panepistimiopolis Zografou, 15771 Athens, Greece; (V.S.); (A.C.d.A.T.); (E.I.)
- Postgraduate Program in Bioactive Natural and Synthetic Products, Health Sciences Center, Federal University of Paraíba, João Pessoa 58051-970, PB, Brazil; (M.d.F.V.d.S.); (E.V.L.d.C.)
| | - Maria de Fátima Vanderlei de Souza
- Postgraduate Program in Bioactive Natural and Synthetic Products, Health Sciences Center, Federal University of Paraíba, João Pessoa 58051-970, PB, Brazil; (M.d.F.V.d.S.); (E.V.L.d.C.)
| | - Emídio Vasconcelos Leitão da Cunha
- Postgraduate Program in Bioactive Natural and Synthetic Products, Health Sciences Center, Federal University of Paraíba, João Pessoa 58051-970, PB, Brazil; (M.d.F.V.d.S.); (E.V.L.d.C.)
| | - Robert Kiss
- Fonds National de la Recherche Scientifique, 1050 Bruxelles, Belgium;
| | - Véronique Mathieu
- Department of Pharmacotherapy and Pharmaceutics, Université Libre de Bruxelles, Boulevard du Triomphe, 1050 Brussels, Belgium;
- ULB Cancer Research Center, Université Libre de Bruxelles, Boulevard du Triomphe, 1050 Brussels, Belgium
| | - Efstathia Ioannou
- Section of Pharmacognosy and Chemistry of Natural Products, Department of Pharmacy, National and Kapodistrian University of Athens, Panepistimiopolis Zografou, 15771 Athens, Greece; (V.S.); (A.C.d.A.T.); (E.I.)
| | - Vassilios Roussis
- Section of Pharmacognosy and Chemistry of Natural Products, Department of Pharmacy, National and Kapodistrian University of Athens, Panepistimiopolis Zografou, 15771 Athens, Greece; (V.S.); (A.C.d.A.T.); (E.I.)
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31
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Meimeti E, Tentolouris N, Manes C, Loupa C, Provatopoulou X, Mostratos D, Vitsos A, Roussis V, Tzouvelekis L, Miriagou V, Rallis M. Ointments containing
Ceratothoa oestroides
extract: Evaluation of their healing potential in the treatment of diabetic foot ulcers. Wound Repair Regen 2019; 28:234-241. [DOI: 10.1111/wrr.12771] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2018] [Revised: 09/10/2019] [Accepted: 09/12/2019] [Indexed: 01/13/2023]
Affiliation(s)
- Evangelia Meimeti
- Faculty of Pharmacy, Department of Pharmaceutical Technology, Panepistimiopolis ZografouNational and Kapodistrian University of Athens Athens Greece
| | - Nikolaos Tentolouris
- National and Kapodistrian University of Athens, 1st Department of Propaedeutic Internal MedicineMedical School, Laiko General Hospital Athens Greece
| | - Christos Manes
- Diabetic Foot DepartmentGeneral Hospital of Thessaloniki Papageorgiou Thessaloniki Greece
| | - Chariclia Loupa
- Demetrios Voyatzoglou Diabetic Foot ClinicA. Fleming Hospital Athens Greece
| | - Xeni Provatopoulou
- Faculty of Pharmacy, Department of Pharmaceutical Technology, Panepistimiopolis ZografouNational and Kapodistrian University of Athens Athens Greece
| | - Dimitrios Mostratos
- Faculty of Pharmacy, Department of Pharmaceutical Technology, Panepistimiopolis ZografouNational and Kapodistrian University of Athens Athens Greece
| | - Andreas Vitsos
- Faculty of Pharmacy, Department of Pharmaceutical Technology, Panepistimiopolis ZografouNational and Kapodistrian University of Athens Athens Greece
| | - Vassilios Roussis
- Department of Pharmacy, Section of Pharmacognosy and Chemistry of Natural Products, Panepistimiopolis ZografouNational and Kapodistrian University of Athens Athens Greece
| | - Leonidas Tzouvelekis
- National and Kapodistrian University of Athens, Department of MicrobiologyMedical School, University of Athens Athens Greece
| | - Vivi Miriagou
- Laboratory of BacteriologyHellenic Pasteur Institute Athens Greece
| | - Michail Rallis
- Faculty of Pharmacy, Department of Pharmaceutical Technology, Panepistimiopolis ZografouNational and Kapodistrian University of Athens Athens Greece
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Vlachou M, Kikionis S, Siamidi A, Kyriakou S, Tsotinis A, Ioannou E, Roussis V. Development and Characterization of Eudragit ®-Based Electrospun Nanofibrous Mats and Their Formulation into Nanofiber Tablets for the Modified Release of Furosemide. Pharmaceutics 2019; 11:E480. [PMID: 31533252 PMCID: PMC6781502 DOI: 10.3390/pharmaceutics11090480] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2019] [Revised: 09/11/2019] [Accepted: 09/12/2019] [Indexed: 01/29/2023] Open
Abstract
Furosemide, a chloride channel blocker ordinarily used as a high-ceiling or loop diuretic, is practically insoluble in water and dilute acids. Due to its acidic nature, furosemide is mostly absorbed in the stomach and in the upper small intestine. Efforts have focused on the development of sustained release systems of furosemide in order to improve the effectiveness of the drug, which exhibits poor aqueous solubility and poor permeability. Recently, electrospun nanofibrous drug delivery systems have emerged as promising alternative solid-dosage forms due to their advantages of high porosity, high surface to volume ratio, and high drug-loading efficacy. Herein, a number of nanofibrous mats composed of different types of Eudragit® polymers in various concentrations and combinations loaded with furosemide were designed, successfully electrospun, and characterized using SEM, FTIR, DSC, and TGA analyses. The nanofibrous nonwovens were formulated in nanofiber tablets and the release profile of furosemide from them was evaluated at pH 1.2 and 6.8 and compared to that of physical mixture matrix tablets of analogous composition as well as to that of a commercial formulation. It was found that the release of furosemide was compatible with the gastroretentive and slower intestinal release requirements with a well-defined absorption window, while some nanofiber formulations could act as furosemide carriers in emergency situations where a relatively fast onset of its action is required, as in the case of critically ill post-traumatic patients.
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Affiliation(s)
- Marilena Vlachou
- Section of Pharmaceutical Technology, Department of Pharmacy, School of Health Sciences, National and Kapodistrian University of Athens, 15784 Athens, Greece.
| | - Stefanos Kikionis
- Section of Pharmacognosy and Chemistry of Natural Products, Department of Pharmacy, School of Health Sciences, National and Kapodistrian University of Athens, 15771 Athens, Greece.
| | - Angeliki Siamidi
- Section of Pharmaceutical Technology, Department of Pharmacy, School of Health Sciences, National and Kapodistrian University of Athens, 15784 Athens, Greece.
| | - Sotiria Kyriakou
- Section of Pharmaceutical Technology, Department of Pharmacy, School of Health Sciences, National and Kapodistrian University of Athens, 15784 Athens, Greece.
| | - Andrew Tsotinis
- Section of Pharmaceutical Chemistry, Department of Pharmacy, School of Health Sciences, National and Kapodistrian University of Athens, 15784 Athens, Greece.
| | - Efstathia Ioannou
- Section of Pharmacognosy and Chemistry of Natural Products, Department of Pharmacy, School of Health Sciences, National and Kapodistrian University of Athens, 15771 Athens, Greece.
| | - Vassilios Roussis
- Section of Pharmacognosy and Chemistry of Natural Products, Department of Pharmacy, School of Health Sciences, National and Kapodistrian University of Athens, 15771 Athens, Greece.
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Kotroni E, Simirioti E, Kikionis S, Sfiniadakis I, Siamidi A, Karalis V, Vitsos A, Vlachou M, Ioannou E, Roussis V, Rallis M. In Vivo Evaluation of the Anti-Inflammatory Activity of Electrospun Micro/Nanofibrous Patches Loaded with Pinus halepensis Bark Extract on Hairless Mice Skin. Materials (Basel) 2019; 12:E2596. [PMID: 31443178 PMCID: PMC6720688 DOI: 10.3390/ma12162596] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/30/2019] [Revised: 08/09/2019] [Accepted: 08/14/2019] [Indexed: 12/20/2022]
Abstract
Skin inflammation is the most common symptom in dermatological diseases. It is usually treated by topically applied products, such as creams, gels and lotions. Skin dressings offer a promising alternative as they are endowed with more controlled administration conditions. In this study, the anti-inflammatory activity of electrospun alginate micro/nanofibrous dressings loaded with the aqueous extract of Pinus halepensis bark (PHBE) was evaluated in vivo in mice. The upper back skin of SKH-1 female hairless mice was exposed to a single dose of ultraviolet radiation (3 MEDs) and the inflamed area was treated daily by the direct application of a nanofibrous patch. The condition of the skin was evaluated primarily on the basis of clinical observation, photo-documentation and histopathological assessment, while measurements of the erythema, hydration, transepidermal water loss (TEWL) and sebum production were also taken into account. The results showed that the topical application of alginate micro/nanofibrous dressings loaded with PHBE on UV-inflamed skin significantly attenuated inflammation damage, reducing the healing period. Increase of the loading dose of PHBE resulted in a proportional reduction of the extent, the density and the depth of skin inflammation. With the steadily increasing interest of the skin dressing industry towards nanofibrous matrices, electrospun nonwovens could serve as ideal candidates for the development of multifunctional anti-inflammatory care systems.
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Affiliation(s)
- Eleftheria Kotroni
- Section of Pharmaceutical Technology, Department of Pharmacy, School of Health Sciences, National and Kapodistrian University of Athens, Athens 15784, Greece
| | - Eleftheria Simirioti
- Section of Pharmaceutical Technology, Department of Pharmacy, School of Health Sciences, National and Kapodistrian University of Athens, Athens 15784, Greece
| | - Stefanos Kikionis
- Section of Pharmacognosy and Chemistry of Natural Products, Department of Pharmacy, School of Health Sciences, National and Kapodistrian University of Athens, Athens 15771, Greece
| | | | - Aggeliki Siamidi
- Section of Pharmaceutical Technology, Department of Pharmacy, School of Health Sciences, National and Kapodistrian University of Athens, Athens 15784, Greece
| | - Vangelis Karalis
- Section of Pharmaceutical Technology, Department of Pharmacy, School of Health Sciences, National and Kapodistrian University of Athens, Athens 15784, Greece
| | - Andreas Vitsos
- Section of Pharmaceutical Technology, Department of Pharmacy, School of Health Sciences, National and Kapodistrian University of Athens, Athens 15784, Greece
| | - Marilena Vlachou
- Section of Pharmaceutical Technology, Department of Pharmacy, School of Health Sciences, National and Kapodistrian University of Athens, Athens 15784, Greece
| | - Efstathia Ioannou
- Section of Pharmacognosy and Chemistry of Natural Products, Department of Pharmacy, School of Health Sciences, National and Kapodistrian University of Athens, Athens 15771, Greece
| | - Vassilios Roussis
- Section of Pharmacognosy and Chemistry of Natural Products, Department of Pharmacy, School of Health Sciences, National and Kapodistrian University of Athens, Athens 15771, Greece.
| | - Michail Rallis
- Section of Pharmaceutical Technology, Department of Pharmacy, School of Health Sciences, National and Kapodistrian University of Athens, Athens 15784, Greece.
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Iliou K, Kikionis S, Petrakis PV, Ioannou E, Roussis V. Citronella oil-loaded electrospun micro/nanofibrous matrices as sustained repellency systems for the Asian tiger mosquito Aedes albopictus. Pest Manag Sci 2019; 75:2142-2147. [PMID: 30632273 DOI: 10.1002/ps.5334] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [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: 08/07/2018] [Revised: 11/03/2018] [Accepted: 01/07/2019] [Indexed: 06/09/2023]
Abstract
BACKGROUND Mosquitoes are hematophagous insects of major public health concern, serving as vectors of many diseases. Available products for personal protection against mosquitoes lack adequate efficacy and in most cases need to be reapplied or replaced frequently. In recent years, the encapsulation of the active repellents in various matrices has arisen as an alternative method for the development of new-generation repellent systems. The aim of the present study was to explore the potential of functional micro/nanofibrous matrices as systems for the sustained release of the highly volatile insect-repellent citronella oil. RESULTS Micro/nanofibrous single- and triple-layer systems incorporating citronella oil as the active agent were developed via the electrospinning technique using the low-cost, non-toxic, biodegradable polymers cellulose acetate and polyvinylpyrrolidone. All the micro/nanofiber systems produced exhibited prolonged release of citronella oil and a high repellent activity in laboratory bioassays against the mosquito Aedes albopictus for at least 4 weeks. CONCLUSION Considering the high volatility of the embedded repellent, the present study demonstrates the strong potential of the micro/nanofibrous matrices to act as carriers of highly volatile repellents for an effective and sustained protection from mosquitoes. © 2019 Society of Chemical Industry.
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Affiliation(s)
- Konstantina Iliou
- Section of Pharmacognosy and Chemistry of Natural Products, Department of Pharmacy, National and Kapodistrian University of Athens, Athens, Greece
| | - Stefanos Kikionis
- Section of Pharmacognosy and Chemistry of Natural Products, Department of Pharmacy, National and Kapodistrian University of Athens, Athens, Greece
| | - Panos V Petrakis
- Laboratory of Entomology, Institute for Mediterranean Forest Ecosystems, Hellenic Agricultural Organization Demetra, Athens, Greece
| | - Efstathia Ioannou
- Section of Pharmacognosy and Chemistry of Natural Products, Department of Pharmacy, National and Kapodistrian University of Athens, Athens, Greece
| | - Vassilios Roussis
- Section of Pharmacognosy and Chemistry of Natural Products, Department of Pharmacy, National and Kapodistrian University of Athens, Athens, Greece
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Vitsos A, Tsagarousianos C, Vergos O, Stithos D, Mathioudakis D, Vitsos I, Zouni P, Kakolyri A, Meimeti E, Kyriazi M, Antoniadou I, Tentolouris N, Dallas P, Roussis V, Rallis M. Efficacy of a Ceratothoa oestroides Olive Oil Extract in Patients With Chronic Ulcers: A Pilot Study. INT J LOW EXTR WOUND 2019; 18:309-316. [DOI: 10.1177/1534734619856143] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Chronic wounds unresponsive to existing treatments constitute a serious disease burden. Factors that contribute to the pathogenesis of chronic ulcers include oxidative stress, comorbid microbial infections, and the type of immune system response. Preclinically, and in a case study, a formulation containing a Ceratothoa oestroides olive oil extract promoted wound healing. Patients with chronic venous and pressure ulcers, clinically assessed as being unresponsive to healing agents, were treated for 3 months with an ointment containing the C oestroides extract combined with antibiotic and/or antiseptic agents chosen according to the type of bacterial infection. Treatment evaluation was performed using the Bates-Jensen criteria with +WoundDesk and MOWA cell phone applications. After 3 months of treatment, C oestroides resulted in an average decrease of 36% in the Bates-Jensen score of ulcers ( P < .000), with the decrease being significant from the first month ( P < .007). The combined use of topically applied antibiotics and antiseptics efficiently controlled microbial ulcer infection and facilitated wound healing. In relation to other factors such as initial wound size, chronicity appeared to be an important prognostic factor regarding the extent of wound healing. Future clinical investigations assessing the wound healing efficacy of the C oestroides olive oil extract are warranted.
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Affiliation(s)
- Andreas Vitsos
- National and Kapodistrian University of Athens, Athens, Greece
| | | | - Orestis Vergos
- Zakynthos General Hospital Agios Dionysios, Zakynthos, Greece
| | | | | | - Ioannis Vitsos
- Zakynthos General Hospital Agios Dionysios, Zakynthos, Greece
| | - Panayota Zouni
- Zakynthos General Hospital Agios Dionysios, Zakynthos, Greece
| | - Athina Kakolyri
- Zakynthos General Hospital Agios Dionysios, Zakynthos, Greece
| | | | - Maria Kyriazi
- National and Kapodistrian University of Athens, Athens, Greece
| | - Ivi Antoniadou
- National and Kapodistrian University of Athens, Athens, Greece
- European University Cyprus, Nicosia, Cyprus
| | - Nikolaos Tentolouris
- National and Kapodistrian University of Athens, Athens, Greece
- Laiko General Hospital, Athens, Greece
| | | | | | - Michail Rallis
- National and Kapodistrian University of Athens, Athens, Greece
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Daskalaki M, Ioannou E, Roussis V, Venihaki M, Kampranis S, Tsatsanis C. Anti-inflammatory actions of marine natural products; the impact on molecular markers of innate immune responses. Clin Chim Acta 2019. [DOI: 10.1016/j.cca.2019.03.944] [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: 11/29/2022]
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Lefranc F, Koutsaviti A, Ioannou E, Kornienko A, Roussis V, Kiss R, Newman D. Algae metabolites: from in vitro growth inhibitory effects to promising anticancer activity. Nat Prod Rep 2019; 36:810-841. [PMID: 30556575 DOI: 10.1039/c8np00057c] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Covering: 1957 to 2017 Algae constitute a heterogeneous group of eukaryotic photosynthetic organisms, mainly found in the marine environment. Algae produce numerous metabolites that help them cope with the harsh conditions of the marine environment. Because of their structural diversity and uniqueness, these molecules have recently gained a lot of interest for the identification of medicinally useful agents, including those with potential anticancer activities. In the current review, which is not a catalogue-based one, we first highlight the major biological events that lead to various types of cancer, including metastatic ones, to chemoresistance, thus to any types of current anticancer treatment relating to the use of chemotherapeutics. We then review algal metabolites for which scientific literature reports anticancer activity. Lastly, we focus on algal metabolites with promising anticancer activity based on their ability to target biological characteristics of cancer cells responsible for poor treatment outcomes. Thus, we highlight compounds that have, among others, one or more of the following characteristics: selectivity in reducing the proliferation of cancer cells over normal ones, potential for killing cancer cells through non-apoptotic signaling pathways, ability to circumvent MDR-related efflux pumps, and activity in vivo in relevant pre-clinical models.
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Affiliation(s)
- Florence Lefranc
- Service de Neurochirurgie, Hôpital Erasme, ULB, 1070 Brussels, Belgium.
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Tziveleka LA, Ioannou E, Roussis V. Ulvan, a bioactive marine sulphated polysaccharide as a key constituent of hybrid biomaterials: A review. Carbohydr Polym 2019; 218:355-370. [PMID: 31221340 DOI: 10.1016/j.carbpol.2019.04.074] [Citation(s) in RCA: 102] [Impact Index Per Article: 20.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2019] [Revised: 04/23/2019] [Accepted: 04/23/2019] [Indexed: 12/22/2022]
Abstract
Ulvan, a sulphated polysaccharide located in the cell walls of green algae that possesses unique structural properties albeit its repeating unit shares chemical affinity with glycosoaminoglycans, such as hyaluronan and chondroitin sulphate, has been increasingly studied over the years for applications in the pharmaceutical field. The increasing knowledge on ulvan's chemical properties and biological activities has triggered its utilization in hybrid materials, given its potential efficacy in biomedical applications. In the present review, the use of ulvan in the design of different biomaterials, including membranes, particles, hydrogels, 3D porous structures and nanofibers, is presented. The applications of these structures may vary from drug delivery to wound dressing or bone tissue engineering. In this context, general information regarding the structure and chemical variability, extraction processes, physicochemical properties, and biological activities of ulvan is reported.
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Affiliation(s)
- Leto-Aikaterini Tziveleka
- Section of Pharmacognosy and Chemistry of Natural Products, Department of Pharmacy, National and Kapodistrian University of Athens, Panepistimiopolis Zografou, Athens 15771, Greece.
| | - Efstathia Ioannou
- Section of Pharmacognosy and Chemistry of Natural Products, Department of Pharmacy, National and Kapodistrian University of Athens, Panepistimiopolis Zografou, Athens 15771, Greece.
| | - Vassilios Roussis
- Section of Pharmacognosy and Chemistry of Natural Products, Department of Pharmacy, National and Kapodistrian University of Athens, Panepistimiopolis Zografou, Athens 15771, Greece.
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Affiliation(s)
- Stamatios Perdikaris
- Section of Pharmacognosy and Chemistry of Natural Products, Department of Pharmacy, National and Kapodistrian University of Athens, Panepistimiopolis Zografou, Athens 15771, Greece
| | - Alfonso Mangoni
- Dipartimento di Farmacia, Università degli Studi di Napoli Federico II, Via D. Montesano 49, Napoli 80131, Italy
| | - Laura Grauso
- Dipartimento di Agraria, Università degli Studi di Napoli Federico II, Via Università 100, Portici, 80055 Città Metropolitana di Napoli, Italy
| | - Panagiota Papazafiri
- Section of Animal and Human Physiology, Department of Biology, National and Kapodistrian University of Athens, Panepistimiopolis Zografou, Athens 15784, Greece
| | - Vassilios Roussis
- Section of Pharmacognosy and Chemistry of Natural Products, Department of Pharmacy, National and Kapodistrian University of Athens, Panepistimiopolis Zografou, Athens 15771, Greece
| | - Efstathia Ioannou
- Section of Pharmacognosy and Chemistry of Natural Products, Department of Pharmacy, National and Kapodistrian University of Athens, Panepistimiopolis Zografou, Athens 15771, Greece
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Vlachou M, Kikionis S, Siamidi A, Tragou K, Kapoti S, Ioannou E, Roussis V, Tsotinis A. Fabrication and Characterization of Electrospun Nanofibers for the Modified Release of the Chronobiotic Hormone Melatonin. Curr Drug Deliv 2019; 16:79-85. [PMID: 30215335 PMCID: PMC6340153 DOI: 10.2174/1567201815666180914095701] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2018] [Revised: 06/20/2018] [Accepted: 09/11/2018] [Indexed: 11/22/2022]
Abstract
OBJECTIVE Aiming at the modified release of melatonin (MLT), electrospun-MLT loaded nanofibers, filled into hard gelatin and DRcapsTM capsules, were used as formulants. METHODS Cellulose acetate, polyvinylpyrrolidinone and hydroxypropylmethylcellusose (HPMC 2910) were used for the preparation of the fiber matrices through electrospinning. The in vitro modified release profile of MLT from the fabricated matrices in gastrointestinal-like fluids was studied. At pH 1.2, the formulations CA1, CA2, PV1, HP1, HP2 and the composite formulations CAPV1-CAPV5 in hard gelatin capsules exhibited fast MLT release. RESULTS In general, the same trend was observed at pH 6.8, with the exception of CAPV1 and CAPV2. These two composite formulations delivered 52.08% and 75.25% MLT, respectively at a slower pace (6 h) when encapsulated in DRcapsTM capsules. In all other cases, the release of MLT from DRcapsTM capsules filled with the MLT-loaded nanofibers reached 100% at 6h. CONCLUSION These findings suggest that the MLT-loaded nanofibrous mats developed in this study exhibit a promising profile for treating sleep dysfunctions.
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Affiliation(s)
- Marilena Vlachou
- Department of Pharmacy, School of Health Sciences, National and Kapodistrian University of Athens, Athens, Greece
| | - Stefanos Kikionis
- Department of Pharmacy, School of Health Sciences, National and Kapodistrian University of Athens, Athens, Greece
| | - Angeliki Siamidi
- Department of Pharmacy, School of Health Sciences, National and Kapodistrian University of Athens, Athens, Greece
| | - Konstantina Tragou
- Department of Pharmacy, School of Health Sciences, National and Kapodistrian University of Athens, Athens, Greece
| | - Stefania Kapoti
- Department of Pharmacy, School of Health Sciences, National and Kapodistrian University of Athens, Athens, Greece
| | - Efstathia Ioannou
- Department of Pharmacy, School of Health Sciences, National and Kapodistrian University of Athens, Athens, Greece
| | - Vassilios Roussis
- Department of Pharmacy, School of Health Sciences, National and Kapodistrian University of Athens, Athens, Greece
| | - Andrew Tsotinis
- Department of Pharmacy, School of Health Sciences, National and Kapodistrian University of Athens, Athens, Greece
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Ricci F, Carrassa L, Christodoulou MS, Passarella D, Michel B, Benhida R, Martinet N, Hunyadi A, Ioannou E, Roussis V, Musso L, Dallavalle S, Silvestri R, Westwood N, Mori M, Ingallina C, Botta B, Kavetsou E, Detsi A, Majer Z, Hudecz F, Bosze S, Kaminska B, Hansen TV, Bertrand P, Athanassopoulos CM, Damia G. A High-throughput Screening of a Chemical Compound Library in Ovarian Cancer Stem Cells. Comb Chem High Throughput Screen 2019; 21:50-56. [PMID: 29366408 DOI: 10.2174/1386207321666180124093406] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2017] [Revised: 10/16/2017] [Accepted: 12/18/2017] [Indexed: 11/22/2022]
Abstract
BACKGROUND Epithelial ovarian cancer has a poor prognosis, mostly due to its late diagnosis and the development of drug resistance after a first platinum-based regimen. The presence of a specific population of "cancer stem cells" could be responsible of the relapse of the tumor and the development of resistance to therapy. For this reason, it would be important to specifically target this subpopulation of tumor cells in order to increase the response to therapy. METHOD We screened a chemical compound library assembled during the COST CM1106 action to search for compound classes active in targeting ovarian stem cells. We here report the results of the high-throughput screening assay in two ovarian cancer stem cells and the differentiated cells derived from them. RESULTS AND CONCLUSION Interestingly, there were compounds active only on stem cells, only on differentiated cells, and compounds active on both cell populations. Even if these data need to be validated in ad hoc dose response cytotoxic experiments, the ongoing analysis of the compound structures will open up to mechanistic drug studies to select compounds able to improve the prognosis of ovarian cancer patients.
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Affiliation(s)
- F Ricci
- IRCCS-Istituto di Ricerche Farmacologiche Mario Negri, Via Giuseppe La Masa 19, 20156 Milan, Italy
| | - L Carrassa
- IRCCS-Istituto di Ricerche Farmacologiche Mario Negri, Via Giuseppe La Masa 19, 20156 Milan, Italy
| | - M S Christodoulou
- Dipartimento di Chimica - Universita degli Studi di Milano - Via C. Golgi 19, 20133 Milan, Italy
| | - D Passarella
- Dipartimento di Chimica - Universita degli Studi di Milano - Via C. Golgi 19, 20133 Milan, Italy
| | - B Michel
- Universite Cote d'Azur, CNRS, Institut de Chimie de Nice UMR 7272, 06108 Nice, France
| | - R Benhida
- Universite Cote d'Azur, CNRS, Institut de Chimie de Nice UMR 7272, 06108 Nice, France
| | - N Martinet
- Universite Cote d'Azur, CNRS, Institut de Chimie de Nice UMR 7272, 06108 Nice, France
| | - A Hunyadi
- Institute of Pharmacognosy, University of Szeged, Eotvos str. 6, 6720 Szeged, Hungary and Interdisciplinary Centre for Natural Products, University of Szeged, Eotvos str. 6, 6720 Szeged, Hungary
| | - E Ioannou
- Department of Pharmacy, Section of Pharmacognosy and Chemistry of Natural Products, National and Kapodistrian University of Athens, Panepistimiopolis Zografou, 15771 Athens, Greece
| | - V Roussis
- Department of Pharmacy, Section of Pharmacognosy and Chemistry of Natural Products, National and Kapodistrian University of Athens, Panepistimiopolis Zografou, 15771 Athens, Greece
| | - L Musso
- Department of Food, Environmental and Nutritional Sciences, Universita degli Studi di Milano,Via Celoria 2, 20133 Milan, Italy
| | - S Dallavalle
- Department of Food, Environmental and Nutritional Sciences, Universita degli Studi di Milano,Via Celoria 2, 20133 Milan, Italy
| | - R Silvestri
- Dipartimento di Chimica e Tecnologie del Farmaco, Sapienza University of Roma, Piazzale Aldo Moro 5, 00185 Rome, Italy
| | - N Westwood
- School of Chemistry and Biomedical Sciences ResearchComplex, University of St Andrews and EaStCHEM, St Andrews KY16, United Kingdom
| | - M Mori
- Center for Life Nano Science@Sapienza, Istituto Italiano di Tecnologia, viale Regina Elena 291, 00161 Rome, Italy
| | - C Ingallina
- Dipartimento di Chimica e Tecnologie del Farmaco, Sapienza University of Roma, Piazzale Aldo Moro 5, 00185 Rome, Italy
| | - B Botta
- Dipartimento di Chimica e Tecnologie del Farmaco, Sapienza University of Roma, Piazzale Aldo Moro 5, 00185 Rome, Italy
| | - E Kavetsou
- Department of Chemical Sciences, School of Chemical Engineering, National Technical University of Athens Iroon Politechniou 9, Zografou Campus, 15780 Athens, Greece
| | - A Detsi
- Department of Chemical Sciences, School of Chemical Engineering, National Technical University of Athens Iroon Politechniou 9, Zografou Campus, 15780 Athens, Greece
| | - Z Majer
- Department of Organic Chemistry, Eotvos Lorand University, H-1117 Budapest, Hungary
| | - F Hudecz
- Department of Organic Chemistry, Eotvos Lorand University, H-1117 Budapest, Hungary
| | - S Bosze
- Research Group of Peptide Chemistry, Hungarian Academy of Sciences, Eotvos Lorand University, H-1117 Budapest, Hungary
| | - B Kaminska
- Nencki Institute of Experimental Biology of Polish Acdemy of Sciences, Laboratory of Molecular Neurobiology, Neurobiology Center, 02-093 Warsaw, Pasteur 3 str, Poland
| | - T V Hansen
- School of Pharmacy, Department of Pharmaceutical Chemistry, University of Oslo, N-0316 Oslo, Norway
| | - P Bertrand
- Institut de Chimie des Milieux et Materiaux de Poitiers, UMR CNRS 7285, 86000, Poitiers, France
| | | | - G Damia
- IRCCS-Istituto di Ricerche Farmacologiche Mario Negri, Via Giuseppe La Masa 19, 20156 Milan, Italy
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Dimaki A, Kyriazi M, Leonis G, Sfiniadakis I, Papaioannou GT, Ioannou E, Roussis V, Rallis M. Diabetic skin and UV light: Protection by antioxidants. Eur J Pharm Sci 2019; 127:1-8. [DOI: 10.1016/j.ejps.2018.10.010] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2018] [Revised: 09/20/2018] [Accepted: 10/10/2018] [Indexed: 10/28/2022]
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Vlachou M, Kikionis S, Siamidi A, Tragou K, Ioannou E, Roussis V, Tsotinis A. Modified In Vitro Release of Melatonin Loaded in Nanofibrous Electrospun Mats Incorporated Into Monolayered and Three-Layered Tablets. J Pharm Sci 2018; 108:970-976. [PMID: 30312723 DOI: 10.1016/j.xphs.2018.09.035] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2018] [Revised: 09/10/2018] [Accepted: 09/28/2018] [Indexed: 10/28/2022]
Abstract
Modified release tablet formulations with melatonin (MLT) are clinically more useful in initiating and maintaining sleep in elderly insomniacs, compared with those designed for immediate release. Aiming at the modified release of MLT, monolayered and 3-layered tablets, incorporating nanofibrous mats composed of cellulose acetate and polyvinylpyrrolidone loaded with MLT, were prepared and studied. In vitro dissolution profiles of MLT in gastrointestinal-like fluids revealed tableting pressure/pH-dependence. The release of the hormone from physical mixture tablets was generally slower from the nanofibers-based tablets, thus exhibiting in the latter case properties that are necessary for the control of both the sleep-onset and the maintenance dysfunctions. The nature of the excipients (hydroxypropylmethylcellulose or lactose monohydrate) used in this study to produce 3-layered tablets was also found to affect the release of MLT, adjusting it to the endogenous hormone's chronobiotic profile. The release of MLT from formulation F(nf)2 (nanofiber mats incorporated into 3-layered tablets containing lactose monohydrate both in the upper and lower layers) was found to be in closer alignment with these effects than the other delivery systems.
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Affiliation(s)
- Marilena Vlachou
- Department of Pharmacy, Section of Pharmaceutical Technology, School of Health Sciences, National and Kapodistrian University of Athens, Athens, Greece.
| | - Stefanos Kikionis
- Department of Pharmacy, Section of Pharmacognosy and Chemistry of Natural Products, School of Health Sciences, National and Kapodistrian University of Athens, Athens, Greece
| | - Angeliki Siamidi
- Department of Pharmacy, Section of Pharmaceutical Technology, School of Health Sciences, National and Kapodistrian University of Athens, Athens, Greece
| | - Konstantina Tragou
- Department of Pharmacy, Section of Pharmaceutical Technology, School of Health Sciences, National and Kapodistrian University of Athens, Athens, Greece
| | - Efstathia Ioannou
- Department of Pharmacy, Section of Pharmacognosy and Chemistry of Natural Products, School of Health Sciences, National and Kapodistrian University of Athens, Athens, Greece
| | - Vassilios Roussis
- Department of Pharmacy, Section of Pharmacognosy and Chemistry of Natural Products, School of Health Sciences, National and Kapodistrian University of Athens, Athens, Greece
| | - Andrew Tsotinis
- Department of Pharmacy, Section of Pharmaceutical Chemistry, School of Health Sciences, National and Kapodistrian University of Athens, Athens, Greece
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Tziveleka LA, Pippa N, Georgantea P, Ioannou E, Demetzos C, Roussis V. Marine sulfated polysaccharides as versatile polyelectrolytes for the development of drug delivery nanoplatforms: Complexation of ulvan with lysozyme. Int J Biol Macromol 2018; 118:69-75. [PMID: 29906535 DOI: 10.1016/j.ijbiomac.2018.06.050] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2018] [Revised: 05/17/2018] [Accepted: 06/11/2018] [Indexed: 11/26/2022]
Abstract
Ulvan, a marine sulfated polysaccharide isolated from green algae, has been recently recognized as a natural biopolymer of biomedical interest. A series of lysozyme/ulvan complexes prepared under various charge ratios at physiological pH were studied. The resulting complexes were examined with light scattering techniques in order to characterize the size, the distribution and the ζ-potential of the nanocarriers, which were found to depend on the charge ratio employed. Increased complexation efficiency of lysozyme was observed for certain charge ratios, while ATR-FTIR data suggested that the protein structure after complexation was retained. Bacterial growth studies showed that lysozyme once complexed with ulvan not only retains its antibacterial activity against the Gram positive strain Staphylococcus aureus, but actually exhibits increased levels of activity. In this model study, the results highlight the potential of ulvan as a promising nanocarrier for positively charged bioactive molecules.
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Affiliation(s)
- Leto-Aikaterini Tziveleka
- Section of Pharmacognosy and Chemistry of Natural Products, Department of Pharmacy, National and Kapodistrian University of Athens, Panepistimiopolis Zografou, Athens 15771, Greece.
| | - Natassa Pippa
- Section of Pharmaceutical Technology, Department of Pharmacy, National and Kapodistrian University of Athens, Panepistimiopolis Zografou, Athens 15771, Greece.
| | - Panagiota Georgantea
- Section of Pharmacognosy and Chemistry of Natural Products, Department of Pharmacy, National and Kapodistrian University of Athens, Panepistimiopolis Zografou, Athens 15771, Greece.
| | - Efstathia Ioannou
- Section of Pharmacognosy and Chemistry of Natural Products, Department of Pharmacy, National and Kapodistrian University of Athens, Panepistimiopolis Zografou, Athens 15771, Greece.
| | - Costas Demetzos
- Section of Pharmaceutical Technology, Department of Pharmacy, National and Kapodistrian University of Athens, Panepistimiopolis Zografou, Athens 15771, Greece.
| | - Vassilios Roussis
- Section of Pharmacognosy and Chemistry of Natural Products, Department of Pharmacy, National and Kapodistrian University of Athens, Panepistimiopolis Zografou, Athens 15771, Greece.
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Meimeti E, Kafanas A, Pavlou P, Evangelatou A, Tsouparelou P, Kanellopoulos S, Kipouros P, Koliarakis N, Leonis G, Ioannou E, Roussis V, Rallis M. Topical Treatment of Skin Injury Inflicted in Mice by X-Ray Irradiation. Skin Pharmacol Physiol 2018; 31:175-183. [PMID: 29617695 DOI: 10.1159/000487404] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2017] [Accepted: 02/02/2018] [Indexed: 12/26/2022]
Abstract
BACKGROUND/AIMS There is no treatment, without side effects, efficiently preventing or curing skin burns, caused by radiotherapy. A new experimental topical treatment protocol was assessed in mice receiving orthovoltage X-rays at an equivalent dose to that applied to human breast cancer patients in conventional radiotherapy. METHODS SKH-HR2 female hairless mice were irradiated on their dorsum with a total dose of 4,300 cGy during a 1-month period (20 fractions). The treatment group received a combination of 3 topical products, an oil-in-water cream, a gel containing Pinus halepensis bark aqueous extract, and an ointment containing olive oil extract of the marine isopod Ceratothoa oestroides. The positive control group was treated with a conventionally used commercial gel, whereas the negative control group did not receive any topical treatment. Skin alterations were evaluated by macroscopic examinations, measurements of transepidermal water loss (TEWL), melanin content, erythema intensity, hydration, and histopathology assessment. RESULTS Sixty days after radiation, TEWL and hydration values were abnormal and elements of acute, chronic, and granulomatous inflammation were present in all cases. The severest damage was detected in the deeper dermis. Treatment showed a comparatively beneficial effect on chronic and granulomatous inflammation while positive control was beneficial on acute inflammation. CONCLUSION Skin anti-inflammatory treatment was the most effective but must be applied for several months. Further preclinical studies should be conducted, assimilating a human cancer radiation therapeutic schema with the aim of optimizing skin inflammation treatment.
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Affiliation(s)
- Evangelia Meimeti
- Department of Pharmaceutical Technology, Faculty of Pharmacy, National and Kapodistrian University of Athens, Athens, Greece
| | | | - Panagoula Pavlou
- Department of Pharmaceutical Technology, Faculty of Pharmacy, National and Kapodistrian University of Athens, Athens, Greece
| | - Antonia Evangelatou
- Department of Radiation Oncology, Andreas Syggros Hospital of Dermatology and Venereology, Athens, Greece
| | - Panagiota Tsouparelou
- Department of Radiation Oncology, Andreas Syggros Hospital of Dermatology and Venereology, Athens, Greece
| | - Stelios Kanellopoulos
- Department of Radiation Oncology, Andreas Syggros Hospital of Dermatology and Venereology, Athens, Greece
| | - Panagiotis Kipouros
- Department of Radiation Oncology, Andreas Syggros Hospital of Dermatology and Venereology, Athens, Greece
| | - Nikolaos Koliarakis
- Department of Radiation Oncology, Andreas Syggros Hospital of Dermatology and Venereology, Athens, Greece
| | - Georgios Leonis
- Department of Pharmaceutical Technology, Faculty of Pharmacy, National and Kapodistrian University of Athens, Athens, Greece
| | - Efstathia Ioannou
- Department of Pharmacognosy and Chemistry of Natural Products, Faculty of Pharmacy, National and Kapodistrian University of Athens, Athens, Greece
| | - Vassilios Roussis
- Department of Pharmacognosy and Chemistry of Natural Products, Faculty of Pharmacy, National and Kapodistrian University of Athens, Athens, Greece
| | - Michail Rallis
- Department of Pharmaceutical Technology, Faculty of Pharmacy, National and Kapodistrian University of Athens, Athens, Greece
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Vlachou M, Tragou K, Siamidi A, Kikionis S, Chatzianagnostou AL, Mitsopoulos A, Ioannou E, Roussis V, Tsotinis A. Modified in vitro release of the chronobiotic hormone melatonin from matrix tablets based on the marine sulfated polysaccharide ulvan. J Drug Deliv Sci Technol 2018. [DOI: 10.1016/j.jddst.2017.11.019] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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47
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Kikionis S, Ioannou E, Andrén OCJ, Chronakis IS, Fahmi A, Malkoch M, Toskas G, Roussis V. Nanofibrous nonwovens based on dendritic-linear-dendritic poly(ethylene glycol) hybrids. J Appl Polym Sci 2018. [DOI: 10.1002/app.45949] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Stefanos Kikionis
- Department of Pharmacognosy and Chemistry of Natural Products, Faculty of Pharmacy; National and Kapodistrian University of Athens, Panepistimiopolis Zografou; Athens 15771 Greece
| | - Efstathia Ioannou
- Department of Pharmacognosy and Chemistry of Natural Products, Faculty of Pharmacy; National and Kapodistrian University of Athens, Panepistimiopolis Zografou; Athens 15771 Greece
| | - Oliver C. J. Andrén
- Department of Fibre and Polymer Technology; KTH Royal Institute of Technology; Teknikringen 56-58, SE-100 44 Stockholm Sweden
| | - Ioannis S. Chronakis
- Nano-Bio Science Research Group; DTU-Food, Technical University of Denmark, Kemitorvet 202; 2800 Kgs. Lyngby Denmark
| | - Amir Fahmi
- Faculty of Technology and Bionics; Rhein-Waal University of Applied Sciences; Marie-Curie-Straße 1, Kleve, D-47533 Germany
| | - Michael Malkoch
- Department of Fibre and Polymer Technology; KTH Royal Institute of Technology; Teknikringen 56-58, SE-100 44 Stockholm Sweden
| | - Georgios Toskas
- Department of Textile Engineering; Technological Educational Institute of Piraeus; 250 Thivon and Petrou Ralli Ave, Egaleo, 12244 Greece
| | - Vassilios Roussis
- Department of Pharmacognosy and Chemistry of Natural Products, Faculty of Pharmacy; National and Kapodistrian University of Athens, Panepistimiopolis Zografou; Athens 15771 Greece
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Rab E, Kekos D, Roussis V, Ioannou E. α-Pyrone Polyketides from Streptomyces ambofaciens BI0048, an Endophytic Actinobacterial Strain Isolated from the Red Alga Laurencia glandulifera. Mar Drugs 2017; 15:md15120389. [PMID: 29240664 PMCID: PMC5742849 DOI: 10.3390/md15120389] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2017] [Revised: 12/05/2017] [Accepted: 12/07/2017] [Indexed: 11/16/2022] Open
Abstract
Four new (1–4) and six previously reported (5–10) α-pyrone polyketides, along with benzoic acid, hydrocinnamic acid, and (E)-cinnamic acid, were isolated from the organic extract resulting from the cultivation of the algicolous strain Streptomyces ambofaciens BI0048, which in turn was isolated from the inner tissues of the red alga Laurencia glandulifera. The structure elucidation of the isolated natural products was based on extensive analysis of their spectroscopic data (NMR, MS, UV, IR). Compounds 1–10 were evaluated for their antibacterial and cytotoxic activities against two multidrug-resistant strains of Staphylococcus aureus and one strain of Escherichia coli, as well as two human cancer cell lines.
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Affiliation(s)
- Enikő Rab
- Section of Pharmacognosy and Chemistry of Natural Products, Department of Pharmacy, School of Health Sciences, National and Kapodistrian University of Athens, Panepistimiopolis Zografou, Athens 15771, Greece.
- Laboratory of Biotechnology, School of Chemical Engineering, National Technical University of Athens, 9 Iroon Polytechniou Str., Zografou Campus, Athens 15780, Greece.
| | - Dimitrios Kekos
- Laboratory of Biotechnology, School of Chemical Engineering, National Technical University of Athens, 9 Iroon Polytechniou Str., Zografou Campus, Athens 15780, Greece.
| | - Vassilios Roussis
- Section of Pharmacognosy and Chemistry of Natural Products, Department of Pharmacy, School of Health Sciences, National and Kapodistrian University of Athens, Panepistimiopolis Zografou, Athens 15771, Greece.
| | - Efstathia Ioannou
- Section of Pharmacognosy and Chemistry of Natural Products, Department of Pharmacy, School of Health Sciences, National and Kapodistrian University of Athens, Panepistimiopolis Zografou, Athens 15771, Greece.
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Koutsaviti A, Ioannou E, Couladis M, Tzakou O, Roussis V. 1 H and 13 C NMR spectral assignments of abietane diterpenes from Pinus heldreichii and Pinus nigra subsp. nigra. Magn Reson Chem 2017; 55:772-778. [PMID: 28211164 DOI: 10.1002/mrc.4585] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/27/2016] [Revised: 01/06/2017] [Accepted: 02/13/2017] [Indexed: 06/06/2023]
Affiliation(s)
- Aikaterini Koutsaviti
- Department of Pharmacognosy and Chemistry of Natural Products, Faculty of Pharmacy, National and Kapodistrian University of Athens, Panepistimiopolis Zografou, Athens, 15771, Greece
| | - Efstathia Ioannou
- Department of Pharmacognosy and Chemistry of Natural Products, Faculty of Pharmacy, National and Kapodistrian University of Athens, Panepistimiopolis Zografou, Athens, 15771, Greece
| | - Maria Couladis
- Department of Pharmacognosy and Chemistry of Natural Products, Faculty of Pharmacy, National and Kapodistrian University of Athens, Panepistimiopolis Zografou, Athens, 15771, Greece
| | - Olga Tzakou
- Department of Pharmacognosy and Chemistry of Natural Products, Faculty of Pharmacy, National and Kapodistrian University of Athens, Panepistimiopolis Zografou, Athens, 15771, Greece
| | - Vassilios Roussis
- Department of Pharmacognosy and Chemistry of Natural Products, Faculty of Pharmacy, National and Kapodistrian University of Athens, Panepistimiopolis Zografou, Athens, 15771, Greece
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Tarhouni-Jabberi S, Zakraoui O, Ioannou E, Riahi-Chebbi I, Haoues M, Roussis V, Kharrat R, Essafi-Benkhadir K. Mertensene, a Halogenated Monoterpene, Induces G2/M Cell Cycle Arrest and Caspase Dependent Apoptosis of Human Colon Adenocarcinoma HT29 Cell Line through the Modulation of ERK-1/-2, AKT and NF-κB Signaling. Mar Drugs 2017; 15:E221. [PMID: 28726723 PMCID: PMC5532663 DOI: 10.3390/md15070221] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2017] [Revised: 06/29/2017] [Accepted: 07/07/2017] [Indexed: 12/19/2022] Open
Abstract
Conventional treatment of advanced colorectal cancer is associated with tumor resistance and toxicity towards normal tissues. Therefore, development of effective anticancer therapeutic alternatives is still urgently required. Nowadays, marine secondary metabolites have been extensively investigated due to the fact that they frequently exhibit anti-tumor properties. However, little attention has been given to terpenoids isolated from seaweeds. In this study, we isolated the halogenated monoterpene mertensene from the red alga Pterocladiella capillacea (S.G. Gmelin) Santelices and Hommersand and we highlight its inhibitory effect on the viability of two human colorectal adenocarcinoma cell lines HT29 and LS174. Interestingly, exposure of HT29 cells to different concentrations of mertensene correlated with the activation of MAPK ERK-1/-2, Akt and NF-κB pathways. Moreover, mertensene-induced G2/M cell cycle arrest was associated with a decrease in the phosphorylated forms of the anti-tumor transcription factor p53, retinoblastoma protein (Rb), cdc2 and chkp2. Indeed, a reduction of the cellular level of cyclin-dependent kinases CDK2 and CDK4 was observed in mertensene-treated cells. We also demonstrated that mertensene triggers a caspase-dependent apoptosis in HT29 cancer cells characterized by the activation of caspase-3 and the cleavage of poly (ADP-ribose) polymerase (PARP). Besides, the level of death receptor-associated protein TRADD increased significantly in a concentration-dependent manner. Taken together, these results demonstrate the potential of mertensene as a drug candidate for the treatment of colon cancer.
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Affiliation(s)
- Safa Tarhouni-Jabberi
- Institut Pasteur de Tunis, Laboratoire de Toxines Alimentaires, LR11IPT08 Laboratoire des Venins et Molécules Thérapeutiques, 1002 Tunis, Tunisia.
- Faculté des Sciences de Bizerte, Université de Carthage, 1002 Tunis, Tunisia.
| | - Ons Zakraoui
- Institut Pasteur de Tunis, LR11IPT04 Laboratoire d'Epidémiologie Moléculaire et de Pathologie Expérimentale Appliquée Aux Maladies Infectieuses, 1002 Tunis, Tunisia.
- Université de Tunis El Manar, 1068 Tunis, Tunisia.
| | - Efstathia Ioannou
- Department of Pharmacognosy and Chemistry of Natural Products, Faculty of Pharmacy, National and Kapodistrian University of Athens, Panepistimiopolis Zografou, Athens 15771, Greece.
| | - Ichrak Riahi-Chebbi
- Institut Pasteur de Tunis, LR11IPT04 Laboratoire d'Epidémiologie Moléculaire et de Pathologie Expérimentale Appliquée Aux Maladies Infectieuses, 1002 Tunis, Tunisia.
- Université de Tunis El Manar, 1068 Tunis, Tunisia.
| | - Meriam Haoues
- Université de Tunis El Manar, 1068 Tunis, Tunisia.
- Institut Pasteur de Tunis, LR11IPT02 Laboratoire de Recherche sur la Transmission, le Contrôle et l'Immunobiologie des Infections, 1002 Tunis, Tunisia.
| | - Vassilios Roussis
- Department of Pharmacognosy and Chemistry of Natural Products, Faculty of Pharmacy, National and Kapodistrian University of Athens, Panepistimiopolis Zografou, Athens 15771, Greece.
| | - Riadh Kharrat
- Institut Pasteur de Tunis, Laboratoire de Toxines Alimentaires, LR11IPT08 Laboratoire des Venins et Molécules Thérapeutiques, 1002 Tunis, Tunisia.
- Université de Tunis El Manar, 1068 Tunis, Tunisia.
| | - Khadija Essafi-Benkhadir
- Institut Pasteur de Tunis, LR11IPT04 Laboratoire d'Epidémiologie Moléculaire et de Pathologie Expérimentale Appliquée Aux Maladies Infectieuses, 1002 Tunis, Tunisia.
- Université de Tunis El Manar, 1068 Tunis, Tunisia.
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