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Kokoulin MS, Kuzmich AS, Romanenko LA. Structure and in vitro antiproliferative activity against breast cancer cells of the cell-wall polysaccharide from the marine bacterium Kangiella japonica KMM 3899 T. Carbohydr Polym 2024; 341:122360. [PMID: 38876721 DOI: 10.1016/j.carbpol.2024.122360] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2024] [Accepted: 06/01/2024] [Indexed: 06/16/2024]
Abstract
Kangiella japonica KMM 3899T is a Gram-negative bacterium isolated from a sandy sediment sample collected from the Sea of Japan. Here the results of the structure and the biological activity against breast cancer cells of the cell-wall polysaccharide from K. japonica KMM 3899T have been described. The structure of the repeating unit of the polysaccharide was elucidated using chemical analysis and NMR spectroscopy: →4)-α-L-GalpNAc3AcA-(1 → 3)-α-D-GlcpNAc-(1 → 4)-β-D-GlcpNAc3NAcAN-(1→. The cell-wall polysaccharide had an antiproliferative effect against T-47D cells. Flow cytometric and Western blot analysis revealed that the polysaccharide induced S phase arrest and mitochondrial-dependent apoptosis.
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Affiliation(s)
- Maxim S Kokoulin
- G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far Eastern Branch, Russian Academy of Sciences, 159/2, Prospect 100 let Vladivostoku, Vladivostok 690022, Russia.
| | - Alexandra S Kuzmich
- G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far Eastern Branch, Russian Academy of Sciences, 159/2, Prospect 100 let Vladivostoku, Vladivostok 690022, Russia
| | - Lyudmila A Romanenko
- G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far Eastern Branch, Russian Academy of Sciences, 159/2, Prospect 100 let Vladivostoku, Vladivostok 690022, Russia
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2
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Fillaudeau A, Cuenot S, Makshakova O, Traboni S, Sinquin C, Hennetier M, Bedini E, Perez S, Colliec-Jouault S, Zykwinska A. Glycosaminoglycan-mimetic infernan grafted with poly(N-isopropylacrylamide): Toward a thermosensitive polysaccharide. Carbohydr Polym 2024; 326:121638. [PMID: 38142103 DOI: 10.1016/j.carbpol.2023.121638] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2023] [Revised: 11/08/2023] [Accepted: 11/22/2023] [Indexed: 12/25/2023]
Abstract
Glycosaminoglycans (GAGs) are essential constituents of the cell surface and extracellular matrix, where they are involved in several cellular processes through their interactions with various proteins. For successful tissue regeneration, developing an appropriate matrix supporting biological activities of cells in a similar manner than GAGs remains still challenging. In this context, this study aims to design a thermosensitive polysaccharide that could further be used as hydrogel for tissue engineering applications. For this purpose, infernan, a marine bacterial exopolysaccharide (EPS) endowed with GAG-mimetic properties was grafted with a thermosensitive polymer, poly(N-isopropylacrylamide) (pNIPAM). Eight grafted polysaccharides were obtained by varying EPS/pNIPAM molar ratio and the molecular weight of pNIPAM. Their physicochemical characteristics and their thermosensitive properties were determined using a multi-technique, experimental approach. In parallel, molecular dynamics and Monte Carlo simulations were applied at two different scales to elucidate, respectively, the molecular conformation of grafted infernan chain and their ability to form an infinite network undergoing a sol-gel transition near the percolation, a necessary condition in hydrogel formation. It comes out from this study that thermosensitive infernan was successfully developed and its potential use in tissue regeneration as a hydrogel scaffold will further be assessed.
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Affiliation(s)
- Arnaud Fillaudeau
- Ifremer, MASAE Microbiologie Aliment Santé Environnement, F-44000 Nantes, France
| | - Stéphane Cuenot
- Nantes Université, CNRS, Institut des Matériaux Jean Rouxel, IMN, Nantes, France.
| | - Olga Makshakova
- Kazan Institute of Biochemistry and Biophysics, FRC Kazan Scientific Center of RAS, Lobachevsky Str., 2/31, 420111 Kazan, Russian Federation
| | - Serena Traboni
- Department of Chemical Sciences, University of Naples Federico II, Complesso Universitario Monte S. Angelo, via Cintia 4, I-80126 Napoli, Italy
| | - Corinne Sinquin
- Ifremer, MASAE Microbiologie Aliment Santé Environnement, F-44000 Nantes, France
| | - Marie Hennetier
- Plateforme Toulouse Field-Flow Fractionation Center, TFFFC, Ecole d'Ingénieurs de Purpan, Toulouse, France
| | - Emiliano Bedini
- Department of Chemical Sciences, University of Naples Federico II, Complesso Universitario Monte S. Angelo, via Cintia 4, I-80126 Napoli, Italy
| | - Serge Perez
- Centre de Recherches sur les Macromolécules Végétales, Université de Grenoble Alpes, Centre National de la Recherche Scientifique, Grenoble, France
| | | | - Agata Zykwinska
- Ifremer, MASAE Microbiologie Aliment Santé Environnement, F-44000 Nantes, France.
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3
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Migaou M, Macé S, Maalej H, Marchand L, Bonnetot S, Noël C, Sinquin C, Jérôme M, Zykwinska A, Colliec-Jouault S, Maaroufi RM, Delbarre-Ladrat C. Exploring the Exopolysaccharide Production Potential of Bacterial Strains Isolated from Tunisian Blue Crab Portunus segnis Microbiota. Molecules 2024; 29:774. [PMID: 38398526 PMCID: PMC10893132 DOI: 10.3390/molecules29040774] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2023] [Revised: 01/23/2024] [Accepted: 01/24/2024] [Indexed: 02/25/2024] Open
Abstract
The blue crab (BC) Portunus segnis is considered an invasive species colonizing Tunisian coasts since 2014. This work aims to explore its associated bacteria potential to produce anionic exopolysaccharides (EPSs) in order to open up new ways of valorization. In this study, different BC samples were collected from the coastal area of Sfax, Tunisia. First, bacterial DNA was extracted from seven different fractions (flesh, gills, viscera, carapace scraping water, and three wastewaters from the production plant) and then sequenced using the metabarcoding approach targeting the V3-V4 region of the 16S rDNA to describe their microbiota composition. Metabarcoding data showed that the dominant bacterial genera were mainly Psychrobacter, Vagococcus, and Vibrio. In parallel, plate counting assays were performed on different culture media, and about 250 bacterial strains were isolated and identified by sequencing the 16S rDNA. EPS production by this new bacterial diversity was assessed to identify new compounds of biotechnological interest. The identification of the bacterial strains in the collection confirmed the dominance of Psychrobacter spp. strains. Among them, 43 were identified as EPS producers, as revealed by Stains-all dye in agarose gel electrophoresis. A Buttiauxella strain produced an EPS rich in both neutral sugars including rare sugars such as rhamnose and fucose and uronic acids. This original composition allows us to assume its potential for biotechnological applications and, more particularly, for developing innovative therapeutics. This study highlights bacterial strains associated with BC; they are a new untapped source for discovering innovative bioactive compounds for health and cosmetic applications, such as anionic EPS.
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Affiliation(s)
- Mariem Migaou
- Laboratory of Genetics, Biodiversity & Valorisation of Bioresources, Higher Institute of Biotechnology of Monastir, University of Monastir, Ave Tahar Haddad, BP74, Monastir 5000, Tunisia
- Ifremer, MASAE Microbiologie Aliment Santé Environnement, F-44000 Nantes, France
| | - Sabrina Macé
- Ifremer, MASAE Microbiologie Aliment Santé Environnement, F-44000 Nantes, France
| | - Hana Maalej
- Laboratory of Biodiversity and Valorization of Arid Areas Bioresources, Faculty of Sciences, University of Gabès, Erriadh, Zrig, Gabès 6072, Tunisia
| | - Laetitia Marchand
- Ifremer, MASAE Microbiologie Aliment Santé Environnement, F-44000 Nantes, France
| | - Sandrine Bonnetot
- Ifremer, MASAE Microbiologie Aliment Santé Environnement, F-44000 Nantes, France
| | - Cyril Noël
- Ifremer, IRSI, SeBiMER Service de Bioinformatique de l'Ifremer, F-29280 Plouzané, France
| | - Corinne Sinquin
- Ifremer, MASAE Microbiologie Aliment Santé Environnement, F-44000 Nantes, France
| | - Marc Jérôme
- Ifremer, MASAE Microbiologie Aliment Santé Environnement, F-44000 Nantes, France
| | - Agata Zykwinska
- Ifremer, MASAE Microbiologie Aliment Santé Environnement, F-44000 Nantes, France
| | | | - Raoui Mounir Maaroufi
- Laboratory of Genetics, Biodiversity & Valorisation of Bioresources, Higher Institute of Biotechnology of Monastir, University of Monastir, Ave Tahar Haddad, BP74, Monastir 5000, Tunisia
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Luo B, Su JY, Zhang YF, Xiao YH, Peng YL, Sun ML, Li Y. Alteromonas arenosi sp. nov., a novel bioflocculant-producing bacterium, isolated from intertidal sand. Antonie Van Leeuwenhoek 2024; 117:28. [PMID: 38280034 DOI: 10.1007/s10482-023-01926-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2023] [Accepted: 12/30/2023] [Indexed: 01/29/2024]
Abstract
A novel Gram-stain-negative, strictly aerobic and bioflocculant-producing bacterium, designated as ASW11-36T, was isolated from an intertidal sand collected from coastal areas of Qingdao, PR China. Growth occurred at 15-40 °C (optimum, 30 °C), pH 7.0-9.0 (optimum, pH 7.5) and with 1.5-7.0% (w/v) NaCl (optimum, 2.5-3.0%). In the whole-cell fatty acid pattern prevailed C16:0 and summed feature 3 (C16:1 ω7c and/or C16:1 ω6c). The major isoprenoid quinone was determined to be Q-8 and the major polar lipids were phosphatidylethanolamine (PE) and phosphatidylglycerol (PG), one unidentified aminolipid (AL), one unidentified glycolipid (GL), and two lipids (L1, L2). Based on the phylogenetic analyses of 16S rRNA gene sequences and 618 single-copy orthologous clusters, strain ASW11-36T could represent a novel member of the genus Alteromonas and was closely related to Alteromonas flava P0211T (98.4%) and Alteromonas facilis P0213T (98.3%). The pairwise average nucleotide identity and digital DNA-DNA hybridization values of the ASW11-36T genome assembly against the closely related species genomes were 71.8% and 21.7%, respectively, that clearly lower than the proposed thresholds for species. Based on phenotypic, phylogenetic, and chemotaxonomic analyses, strain ASW11-36T is considered to represent a novel species of the genus Alteromonas, for which the name Alteromonas arenosi sp. nov. is proposed. The type strain is ASW11-36T (= KCTC 82496T = MCCC 1K05585T). In addition, the strain yielded 65% of flocculating efficiency in kaolin suspension with CaCl2 addition. The draft genome of ASW11-36T shared abundant putative CAZy family related genes, especially involved in the biosynthesis of exopolysaccharides, implying its potential environmental and biological applications.
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Affiliation(s)
- Bi Luo
- College of Life Sciences, Financial Assets Department, Shanxi Agricultural University, Taigu, 030801, China
| | - Jing-Yun Su
- College of Life Sciences, Financial Assets Department, Shanxi Agricultural University, Taigu, 030801, China
| | - Ya-Fei Zhang
- College of Life Sciences, Financial Assets Department, Shanxi Agricultural University, Taigu, 030801, China
| | - Yong-Hui Xiao
- College of Life Sciences, Financial Assets Department, Shanxi Agricultural University, Taigu, 030801, China
| | - Yun-Lin Peng
- College of Life Sciences, Financial Assets Department, Shanxi Agricultural University, Taigu, 030801, China
| | - Mei-Ling Sun
- College of Marine Life Sciences, Frontiers Science Center for Deep Ocean Multispheres and Earth System, Ocean University of China, Qingdao, 266000, China.
| | - Yi Li
- College of Life Sciences, Financial Assets Department, Shanxi Agricultural University, Taigu, 030801, China.
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Veraldi N, Quadri ID, van de Looij Y, Modernell LM, Sinquin C, Zykwinska A, Tournier BB, Dalonneau F, Li H, Li JP, Millet P, Vives R, Colliec-Jouault S, de Agostini A, Sanches EF, Sizonenko SV. Low-molecular weight sulfated marine polysaccharides: Promising molecules to prevent neurodegeneration in mucopolysaccharidosis IIIA? Carbohydr Polym 2023; 320:121214. [PMID: 37659814 DOI: 10.1016/j.carbpol.2023.121214] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2023] [Revised: 07/13/2023] [Accepted: 07/17/2023] [Indexed: 09/04/2023]
Abstract
Mucopolysaccharidosis IIIA is a hereditary disease caused by mutations in the sulfamidase enzyme that participates in catabolism of heparan sulfate (HS), leading to HS fragment accumulation and multisystemic failure. No cure exists and death occurs around the second decade of life. Two low molecular weight highly sulfated compounds derived from marine diabolican and infernan exopolysaccharides (A5_3 and A5_4, respectively) with heparanase inhibiting properties were tested in a MPSIIIA cell line model, resulting in limited degradation of intracellular HS. Next, we observed the effects of intraperitoneal injections of the diabolican derivative A5_3 from 4 to 12 weeks of age on MPSIIIA mice. Brain metabolism and microstructure, levels of proteins and genes involved in MPSIIIA brain pathophysiology were also investigated. 1H-Magnetic Resonance Spectroscopy (MRS) indicated deficits in energetic metabolism, tissue integrity and neurotransmission at both 4 and 12 weeks in MPSIIIA mice, with partial protective effects of A5_3. Ex-vivo Diffusion Tensor Imaging (DTI) showed white matter microstructural damage in MPSIIIA, with noticeable protective effects of A5_3. Protein and gene expression assessments displayed both pro-inflammatory and pro-apoptotic profiles in MPSIIIA mice, with benefits of A5_3 counteracting neuroinflammation. Overall, derivative A5_3 was well tolerated and was shown to be efficient in preventing brain metabolism failure and inflammation, resulting in preserved brain microstructure in the context of MPSIIIA.
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Affiliation(s)
- Noemi Veraldi
- Division of Clinical Pathology, Department of Diagnostics, Geneva University Hospitals, Geneva, Switzerland.
| | - Isabelle Dentand Quadri
- Department of Pathology and Immunology, Faculty of Medicine, Geneva University, Geneva, Switzerland.
| | - Yohan van de Looij
- Center for Biomedical Imaging, Animal Imaging Technology section, Federal Polytechnic School of Lausanne, Lausanne, Switzerland; Division of Development and Growth, Department of Pediatrics & Gynecology & Obstetrics, Children's Hospital, Geneva University Hospitals, Geneva, Switzerland.
| | - Laura Malaguti Modernell
- Division of Development and Growth, Department of Pediatrics & Gynecology & Obstetrics, Children's Hospital, Geneva University Hospitals, Geneva, Switzerland
| | | | | | - Benjamin B Tournier
- Division of Adult Psychiatry, Department of Psychiatry, Geneva University Hospitals, Geneva, Switzerland.
| | | | - Honglian Li
- Department of Medical Biochemistry and Microbiology, Uppsala University, Sweden.
| | - Jin-Ping Li
- Department of Medical Biochemistry and Microbiology, Uppsala University, Sweden.
| | - Philippe Millet
- Division of Adult Psychiatry, Department of Psychiatry, Geneva University Hospitals, Geneva, Switzerland.
| | - Romain Vives
- University of Grenoble Alpes, CNRS, CEA, IBS, Grenoble, France.
| | | | - Ariane de Agostini
- Division of Clinical Pathology, Department of Diagnostics, Geneva University Hospitals, Geneva, Switzerland; Department of Pathology and Immunology, Faculty of Medicine, Geneva University, Geneva, Switzerland.
| | - Eduardo Farias Sanches
- Division of Development and Growth, Department of Pediatrics & Gynecology & Obstetrics, Children's Hospital, Geneva University Hospitals, Geneva, Switzerland.
| | - Stéphane V Sizonenko
- Division of Development and Growth, Department of Pediatrics & Gynecology & Obstetrics, Children's Hospital, Geneva University Hospitals, Geneva, Switzerland.
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Benhadda F, Zykwinska A, Colliec-Jouault S, Sinquin C, Thollas B, Courtois A, Fuzzati N, Toribio A, Delbarre-Ladrat C. Marine versus Non-Marine Bacterial Exopolysaccharides and Their Skincare Applications. Mar Drugs 2023; 21:582. [PMID: 37999406 PMCID: PMC10672628 DOI: 10.3390/md21110582] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2023] [Revised: 11/02/2023] [Accepted: 11/05/2023] [Indexed: 11/25/2023] Open
Abstract
Bacteria are well-known to synthesize high molecular weight polysaccharides excreted in extracellular domain, which constitute their protective microenvironment. Several bacterial exopolysaccharides (EPS) are commercially available for skincare applications in cosmetic products due to their unique structural features, conferring valuable biological and/or textural properties. This review aims to give an overview of bacterial EPS, an important group of macromolecules used in cosmetics as actives and functional ingredients. For this purpose, the main chemical characteristics of EPS are firstly described, followed by the basics of the development of cosmetic ingredients. Then, a focus on EPS production, including upstream and downstream processes, is provided. The diversity of EPS used in the cosmetic industry, and more specifically of marine-derived EPS is highlighted. Marine bacteria isolated from extreme environments are known to produce EPS. However, their production processes are highly challenging due to high or low temperatures; yield must be improved to reach economically viable ingredients. The biological properties of marine-derived EPS are then reviewed, resulting in the highlight of the challenges in this field.
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Affiliation(s)
- Fanny Benhadda
- Ifremer, MASAE Microbiologie Aliment Santé Environnement, F-44000 Nantes, France; (F.B.); (S.C.-J.); (C.S.); (C.D.-L.)
- CHANEL Fragrance and Beauty, F-93500 Pantin, France; (N.F.); (A.T.)
| | - Agata Zykwinska
- Ifremer, MASAE Microbiologie Aliment Santé Environnement, F-44000 Nantes, France; (F.B.); (S.C.-J.); (C.S.); (C.D.-L.)
| | - Sylvia Colliec-Jouault
- Ifremer, MASAE Microbiologie Aliment Santé Environnement, F-44000 Nantes, France; (F.B.); (S.C.-J.); (C.S.); (C.D.-L.)
| | - Corinne Sinquin
- Ifremer, MASAE Microbiologie Aliment Santé Environnement, F-44000 Nantes, France; (F.B.); (S.C.-J.); (C.S.); (C.D.-L.)
| | | | | | - Nicola Fuzzati
- CHANEL Fragrance and Beauty, F-93500 Pantin, France; (N.F.); (A.T.)
| | - Alix Toribio
- CHANEL Fragrance and Beauty, F-93500 Pantin, France; (N.F.); (A.T.)
| | - Christine Delbarre-Ladrat
- Ifremer, MASAE Microbiologie Aliment Santé Environnement, F-44000 Nantes, France; (F.B.); (S.C.-J.); (C.S.); (C.D.-L.)
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7
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Colliec-Jouault S, Esposito F, Ledru H, Sinquin C, Marchand L, Fillaudeau A, Routier S, Buron F, Lopin-Bon C, Cuenot S, Bedini E, Zykwinska A. Glycosaminoglycan Mimetics Obtained by Microwave-Assisted Sulfation of Marine Bacterium Sourced Infernan Exopolysaccharide. Biomacromolecules 2023; 24:462-470. [PMID: 36563405 DOI: 10.1021/acs.biomac.2c01277] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Sulfated glycosaminoglycans (GAGs) are fundamental constituents of both the cell surface and extracellular matrix. By playing a key role in cell-cell and cell-matrix interactions, GAGs are involved in many physiological and pathological processes. To design GAG mimetics with similar therapeutic potential as the natural ones, the specific structural features, among them sulfate content, sulfation pattern, and chain length, should be considered. In the present study, we describe a sulfation method based on microwave radiation to obtain highly sulfated derivatives as GAG mimetics. The starting low-molecular-weight (LMW) derivative was prepared from the infernan exopolysaccharide, a highly branched naturally slightly sulfated heteropolysaccharide synthesized by the deep-sea hydrothermal vent bacterium Alteromonas infernus. LMW highly sulfated infernan derivatives obtained by conventional heating sulfation have already been shown to display GAG-mimetic properties. Here, the potential of microwave-assisted sulfation versus that of the conventional method to obtain GAG mimetics was explored. Structural analysis by NMR revealed that highly sulfated derivatives from the two methods shared similar structural features, emphasizing that microwave-assisted sulfation with a 12-fold shorter reaction time is as efficient as the classical one.
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Affiliation(s)
| | - Fabiana Esposito
- Department of Chemical Sciences, University of Naples Federico II, Complesso Universitario Monte S.Angelo, via Cintia 4, I-80126Napoli, Italy
| | - Hélène Ledru
- Institut de Chimie Organique et Analytique─UMR 7311, Université d'Orléans et CNRS, Rue de Chartres, BP 6759, 45067Orléans Cedex 2, France
| | - Corinne Sinquin
- Ifremer, MASAE Microbiologie Aliment Santé Environnement, F-44000Nantes, France
| | - Laetitia Marchand
- Ifremer, MASAE Microbiologie Aliment Santé Environnement, F-44000Nantes, France
| | - Arnaud Fillaudeau
- Ifremer, MASAE Microbiologie Aliment Santé Environnement, F-44000Nantes, France
| | - Sylvain Routier
- Institut de Chimie Organique et Analytique─UMR 7311, Université d'Orléans et CNRS, Rue de Chartres, BP 6759, 45067Orléans Cedex 2, France
| | - Frédéric Buron
- Institut de Chimie Organique et Analytique─UMR 7311, Université d'Orléans et CNRS, Rue de Chartres, BP 6759, 45067Orléans Cedex 2, France
| | - Chrystel Lopin-Bon
- Institut de Chimie Organique et Analytique─UMR 7311, Université d'Orléans et CNRS, Rue de Chartres, BP 6759, 45067Orléans Cedex 2, France
| | - Stéphane Cuenot
- Institut des Matériaux Jean Rouxel─IMN, Nantes Université and CNRS, Nantes44322, France
| | - Emiliano Bedini
- Department of Chemical Sciences, University of Naples Federico II, Complesso Universitario Monte S.Angelo, via Cintia 4, I-80126Napoli, Italy
| | - Agata Zykwinska
- Ifremer, MASAE Microbiologie Aliment Santé Environnement, F-44000Nantes, France
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8
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Juhas M. The World of Microorganisms. BRIEF LESSONS IN MICROBIOLOGY 2023:1-16. [DOI: 10.1007/978-3-031-29544-7_1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
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9
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Kokoulin MS, Kuzmich AS, Romanenko LA, Chikalovets IV. Sulfated capsular polysaccharide from the marine bacterium Kangiella japonica inhibits T-47D cells growth in vitro. Carbohydr Polym 2022; 290:119477. [DOI: 10.1016/j.carbpol.2022.119477] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2022] [Revised: 04/07/2022] [Accepted: 04/08/2022] [Indexed: 11/25/2022]
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10
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de Bruin S, Vasquez-Cardenas D, Sarbu SM, Meysman FJR, Sousa DZ, van Loosdrecht MCM, Lin Y. Sulfated glycosaminoglycan-like polymers are present in an acidophilic biofilm from a sulfidic cave. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 829:154472. [PMID: 35276175 DOI: 10.1016/j.scitotenv.2022.154472] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Revised: 02/21/2022] [Accepted: 03/07/2022] [Indexed: 06/14/2023]
Abstract
Sulfated glycosaminoglycans (sGAG) are negatively charged extracellular polymeric substances that occur in biofilms from various environments. Yet, it remains unclear whether these polymers are acquired from the external environment or produced by microbes in the biofilm. To resolve this, we analyzed the presence of sGAGs in samples of an acidophilic biofilm collected from Sulfur Cave in Puturosu Mountain (Romania), an environment that is largely inaccessible to contamination. A maximum of 55.16 ± 2.06 μg sGAG-like polymers were recovered per mg of EPS. Enzymatic treatment with chondroitinase ABC resulted in a decrease of the mass of these polymers, suggesting the structure of the recovered sGAG is similar to chondroitin. Subsequent FT-IR analysis of these polymers revealed absorbance bands at 1230 cm-1, 1167 cm-1 and 900 cm-1, indicating a possible presence of polysaccharides and sulfate. Analysis of genomic sequences closely related to those predominant in the acidophilic biofilm, contained genes coding for sulfotransferase (an enzyme needed for the production of sGAG), which supports the hypothesis of microbial synthesis of sGAGs within the biofilm.
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Affiliation(s)
- S de Bruin
- Department of Biotechnology, Delft University of Technology, Van der Maasweg 9, 2629 HZ Delft, the Netherlands.
| | - D Vasquez-Cardenas
- Department of Biotechnology, Delft University of Technology, Van der Maasweg 9, 2629 HZ Delft, the Netherlands; Department of Biology, University of Antwerp, Universiteitsplein 1, 2610 Wilrijk, Belgium
| | - S M Sarbu
- Department of Biological Sciences, California State University, 400 West 1st St, Chico, CA 95926-515, USA; Emil G. Racoviță Institute, Babeș-Bolyai University, Clinicilor 5-7, 400006 Cluj-Napoca, Romania
| | - F J R Meysman
- Department of Biotechnology, Delft University of Technology, Van der Maasweg 9, 2629 HZ Delft, the Netherlands; Department of Biology, University of Antwerp, Universiteitsplein 1, 2610 Wilrijk, Belgium
| | - D Z Sousa
- Laboratory of Microbiology, Wageningen University & Research, Stippeneng 4, 6708 WE Wageningen, the Netherlands
| | - M C M van Loosdrecht
- Department of Biotechnology, Delft University of Technology, Van der Maasweg 9, 2629 HZ Delft, the Netherlands
| | - Y Lin
- Department of Biotechnology, Delft University of Technology, Van der Maasweg 9, 2629 HZ Delft, the Netherlands
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11
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Cuenot S, Gélébart P, Sinquin C, Colliec-Jouault S, Zykwinska A. Mechanical relaxations of hydrogels governed by their physical or chemical crosslinks. J Mech Behav Biomed Mater 2022; 133:105343. [PMID: 35780569 DOI: 10.1016/j.jmbbm.2022.105343] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2022] [Revised: 05/13/2022] [Accepted: 06/26/2022] [Indexed: 11/19/2022]
Abstract
In the field of tissue engineering, in order to restore tissue functionality hydrogels that closely mimic biological and mechanical properties of the extracellular matrix are intensely developed. Mechanical properties including relaxation of the surrounding microenvironment regulate essential cellular processes. However, the mechanical properties of engineered hydrogels are particularly complex since they involve not only a nonlinear elastic behavior but also time-dependent responses. An accurate determination of these properties at microscale, i.e. as probed by cells, becomes an essential step to further design hydrogel-based biomaterials able to induce specific cellular responses. Atomic Force Microscopy (AFM) with contact sizes of the order of few micrometers constitutes an appropriate technique to determine the origin of relaxation mechanisms occurring in hydrogels. In the present study, AFM force relaxation experiments are conducted on chemically and physically crosslinked hydrogels respectively based on a synthetic polymer, polyacrylamide and a natural polymer, a bacterial exopolysaccharide infernan, produced by the deep-sea hydrothermal vent bacterium, Alteromonas infernus. Two distinct relaxation mechanisms are clearly evidenced depending on the nature of hydrogel network crosslinks. Chemically crosslinked hydrogel exhibits poroelastic relaxations, whereas physically crosslinked hydrogel shows time-dependent responses arising from viscoelastic effects. In addition, two relaxation processes are revealed in ionic physical hydrogel originating from chain rearrangement and breaking/reforming of the ionic crosslinks. The effect of the ionic strength on both the long-term elastic modulus and relaxation times of physical hydrogels was also shown. These findings highlight that physical hydrogels with well-defined time-dependent mechanical properties could be tuned for an optimized response of cells.
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Affiliation(s)
- Stéphane Cuenot
- Nantes Université, CNRS, Institut des Matériaux Jean Rouxel, IMN, 2, Rue de la Houssinière, 44322, Nantes, Cedex 3, France.
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12
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Gélébart P, Cuenot S, Sinquin C, Halgand B, Sourice S, Le Visage C, Guicheux J, Colliec-Jouault S, Zykwinska A. Microgels based on Infernan, a glycosaminoglycan-mimetic bacterial exopolysaccharide, as BMP-2 delivery systems. Carbohydr Polym 2022; 284:119191. [DOI: 10.1016/j.carbpol.2022.119191] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2021] [Revised: 01/20/2022] [Accepted: 01/25/2022] [Indexed: 02/06/2023]
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13
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Contributions of Women in Recent Research on Biopolymer Science. Polymers (Basel) 2022; 14:polym14071420. [PMID: 35406293 PMCID: PMC9003506 DOI: 10.3390/polym14071420] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Revised: 03/26/2022] [Accepted: 03/28/2022] [Indexed: 11/26/2022] Open
Abstract
Nowadays, biopolymers are playing a fundamental role in our society because of the environmental issues and concerns associated with synthetic polymers. The aim of this Special Issue entitled ‘Women in Polymer Science and Technology: Biopolymers’ is highlighting the work designed and developed by women on biopolymer science and technology. In this context, this short review aims to provide an introduction to this Special Issue by highlighting some recent contributions of women around the world on the particular topic of biopolymer science and technology during the last 20 years. In the first place, it highlights a selection of important works performed on a number of well-studied natural polymers, namely, agar, chitin, chitosan, cellulose, and collagen. Secondly, it gives an insight into the discovery of new polysaccharides and enzymes that have a role in their synthesis and in their degradation. These contributions will be paving the way for the next generation of female and male scientists on this topic.
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14
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Arsın H, Jasilionis A, Dahle H, Sandaa RA, Stokke R, Nordberg Karlsson E, Steen IH. Exploring Codon Adjustment Strategies towards Escherichia coli-Based Production of Viral Proteins Encoded by HTH1, a Novel Prophage of the Marine Bacterium Hypnocyclicus thermotrophus. Viruses 2021; 13:v13071215. [PMID: 34201869 PMCID: PMC8310279 DOI: 10.3390/v13071215] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2021] [Revised: 06/17/2021] [Accepted: 06/18/2021] [Indexed: 01/15/2023] Open
Abstract
Marine viral sequence space is immense and presents a promising resource for the discovery of new enzymes interesting for research and biotechnology. However, bottlenecks in the functional annotation of viral genes and soluble heterologous production of proteins hinder access to downstream characterization, subsequently impeding the discovery process. While commonly utilized for the heterologous expression of prokaryotic genes, codon adjustment approaches have not been fully explored for viral genes. Herein, the sequence-based identification of a putative prophage is reported from within the genome of Hypnocyclicus thermotrophus, a Gram-negative, moderately thermophilic bacterium isolated from the Seven Sisters hydrothermal vent field. A prophage-associated gene cluster, consisting of 46 protein coding genes, was identified and given the proposed name Hypnocyclicus thermotrophus phage H1 (HTH1). HTH1 was taxonomically assigned to the viral family Siphoviridae, by lowest common ancestor analysis of its genome and phylogeny analyses based on proteins predicted as holin and DNA polymerase. The gene neighbourhood around the HTH1 lytic cassette was found most similar to viruses infecting Gram-positive bacteria. In the HTH1 lytic cassette, an N-acetylmuramoyl-L-alanine amidase (Amidase_2) with a peptidoglycan binding motif (LysM) was identified. A total of nine genes coding for enzymes putatively related to lysis, nucleic acid modification and of unknown function were subjected to heterologous expression in Escherichia coli. Codon optimization and codon harmonization approaches were applied in parallel to compare their effects on produced proteins. Comparison of protein yields and thermostability demonstrated that codon optimization yielded higher levels of soluble protein, but codon harmonization led to proteins with higher thermostability, implying a higher folding quality. Altogether, our study suggests that both codon optimization and codon harmonization are valuable approaches for successful heterologous expression of viral genes in E. coli, but codon harmonization may be preferable in obtaining recombinant viral proteins of higher folding quality.
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Affiliation(s)
- Hasan Arsın
- Department of Biological Sciences, University of Bergen, N-5020 Bergen, Norway; (R.-A.S.); (R.S.)
- Centre for Deep Sea Research, University of Bergen, N-5020 Bergen, Norway;
- Correspondence: (H.A.); (I.H.S.); Tel.: +47-555-88-375 (I.H.S.)
| | - Andrius Jasilionis
- Division of Biotechnology, Lund University, P.O. Box 124, SE-221 00 Lund, Sweden; (A.J.); (E.N.K.)
| | - Håkon Dahle
- Centre for Deep Sea Research, University of Bergen, N-5020 Bergen, Norway;
- Computational Biology Unit, University of Bergen, N-5020 Bergen, Norway
| | - Ruth-Anne Sandaa
- Department of Biological Sciences, University of Bergen, N-5020 Bergen, Norway; (R.-A.S.); (R.S.)
| | - Runar Stokke
- Department of Biological Sciences, University of Bergen, N-5020 Bergen, Norway; (R.-A.S.); (R.S.)
- Centre for Deep Sea Research, University of Bergen, N-5020 Bergen, Norway;
| | - Eva Nordberg Karlsson
- Division of Biotechnology, Lund University, P.O. Box 124, SE-221 00 Lund, Sweden; (A.J.); (E.N.K.)
| | - Ida Helene Steen
- Department of Biological Sciences, University of Bergen, N-5020 Bergen, Norway; (R.-A.S.); (R.S.)
- Centre for Deep Sea Research, University of Bergen, N-5020 Bergen, Norway;
- Correspondence: (H.A.); (I.H.S.); Tel.: +47-555-88-375 (I.H.S.)
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Complete genome sequence of Alteromonas pelagimontana 5.12 T, a marine exopolysaccharide-producing bacterium isolated from hydrothermally influenced deep-sea sediment of eastern Southwest Indian Ridge. Mar Genomics 2020; 55:100804. [PMID: 32665084 DOI: 10.1016/j.margen.2020.100804] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2020] [Revised: 06/24/2020] [Accepted: 06/30/2020] [Indexed: 11/21/2022]
Abstract
The whole genome of Alteromonas pelagimontana 5.12T, a psychrotolerant deep-sea bacterium isolated from the sediment sample of eastern Southwest Indian Ridge, was sequenced and analysed for understanding its metabolic capacities and biosynthesis potential of natural products. The circular genome contained 4.3 Mb with a GC content of 42.6 mol%. Genomic data mining revealed a gene cluster for heavy metal resistance (czcABC, acrB, arsR1, copA, nikA, mntH, mntP), exopolysaccharides (EPS; epsCDEFHLM) and polyhydroxyalkanoates (PHA; phbC) production, as well as genes involved in complex polysaccharide degradation. Genes that could allow strain 5.12T to cope with acid stress (ibaG) and heat shock (ibpA, hslR) were observed along with ten chaperone-encoding genes which could possibly play vital role in adaptability of this strain to the hydrothermally influenced environment. Gene clusters for secondary metabolite production such as bacteriocin and arylpolyene were also predicted. Thus, genome sequencing and data mining provided insights into the molecular mechanisms involved in the adaptation to hydrothermally influenced deep-sea environment that could promote further experimental exploration.
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