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Liu Z, Sun W, Hu Z, Wang W, Zhang H. Marine Streptomyces-Derived Novel Alkaloids Discovered in the Past Decade. Mar Drugs 2024; 22:51. [PMID: 38276653 PMCID: PMC10821133 DOI: 10.3390/md22010051] [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: 12/18/2023] [Revised: 01/21/2024] [Accepted: 01/21/2024] [Indexed: 01/27/2024] Open
Abstract
Natural alkaloids originating from actinomycetes and synthetic derivatives have always been among the important suppliers of small-molecule drugs. Among their biological sources, Streptomyces is the highest and most extensively researched genus. Marine-derived Streptomyces strains harbor unconventional metabolic pathways and have been demonstrated to be efficient producers of biologically active alkaloids; more than 60% of these compounds exhibit valuable activity such as antibacterial, antitumor, anti-inflammatory activities. This review comprehensively summarizes novel alkaloids produced by marine Streptomyces discovered in the past decade, focusing on their structural features, biological activity, and pharmacological mechanisms. Future perspectives on the discovery and development of novel alkaloids from marine Streptomyces are also provided.
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Affiliation(s)
| | | | | | | | - Huawei Zhang
- School of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou 310014, China; (Z.L.); (W.S.); (Z.H.); (W.W.)
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2
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Roig-Puche M, Lopez-Moya F, Valverde-Urrea M, Sanchez-Jerez P, Lopez-Llorca LV, Fernandez-Gonzalez V. Chitosan from Marine Amphipods Inhibits the Wilt Banana Pathogen Fusarium oxysporum f. sp. Cubense Tropical Race 4. Mar Drugs 2023; 21:601. [PMID: 38132922 PMCID: PMC10744841 DOI: 10.3390/md21120601] [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: 08/09/2023] [Revised: 11/17/2023] [Accepted: 11/20/2023] [Indexed: 12/23/2023] Open
Abstract
In this work, we extracted chitosan from marine amphipods associated with aquaculture facilities and tested its use in crop protection. The obtained chitosan was 2.5 ± 0.3% of initial ground amphipod dry weight. The chemical nature of chitosan from amphipod extracts was confirmed via Raman scattering spectroscopy and Fourier transform infrared spectroscopy (FTIR). This chitosan showed an 85.7-84.3% deacetylation degree. Chitosan from biofouling amphipods at 1 mg·mL-1 virtually arrested conidia germination (ca. sixfold reduction from controls) of the banana wilt pathogenic fungus Fusarium oxysporum f. sp cubense Tropical Race 4 (FocTR4). This concentration reduced (ca. twofold) the conidia germination of the biocontrol fungus Pochonia chlamydosporia (Pc123). Chitosan from amphipods at low concentrations (0.01 mg·mL-1) still reduced FocTR4 germination but did not affect Pc123. This is the first time that chitosan is obtained from biofouling amphipods. This new chitosan valorizes aquaculture residues and has potential for biomanaging the diseases of food security crops such as bananas.
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Affiliation(s)
- Marc Roig-Puche
- Laboratory of Plant Pathology, Department of Marine Sciences and Applied Biology, University of Alicante, 03690 Alicante, Spain; (M.R.-P.); (M.V.-U.); (L.V.L.-L.)
| | - Federico Lopez-Moya
- Laboratory of Plant Pathology, Department of Marine Sciences and Applied Biology, University of Alicante, 03690 Alicante, Spain; (M.R.-P.); (M.V.-U.); (L.V.L.-L.)
| | - Miguel Valverde-Urrea
- Laboratory of Plant Pathology, Department of Marine Sciences and Applied Biology, University of Alicante, 03690 Alicante, Spain; (M.R.-P.); (M.V.-U.); (L.V.L.-L.)
| | - Pablo Sanchez-Jerez
- Laboratory of Marine Biology, Department of Marine Sciences and Applied Biology, University of Alicante, 03690 Alicante, Spain; (P.S.-J.); (V.F.-G.)
| | - Luis Vicente Lopez-Llorca
- Laboratory of Plant Pathology, Department of Marine Sciences and Applied Biology, University of Alicante, 03690 Alicante, Spain; (M.R.-P.); (M.V.-U.); (L.V.L.-L.)
| | - Victoria Fernandez-Gonzalez
- Laboratory of Marine Biology, Department of Marine Sciences and Applied Biology, University of Alicante, 03690 Alicante, Spain; (P.S.-J.); (V.F.-G.)
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3
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D'Agostino PM. Highlights of biosynthetic enzymes and natural products from symbiotic cyanobacteria. Nat Prod Rep 2023; 40:1701-1717. [PMID: 37233731 DOI: 10.1039/d3np00011g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Covering: up to 2023Cyanobacteria have long been known for their intriguing repertoire of natural product scaffolds, which are often distinct from other phyla. Cyanobacteria are ecologically significant organisms that form a myriad of different symbioses including with sponges and ascidians in the marine environment or with plants and fungi, in the form of lichens, in terrestrial environments. Whilst there have been several high-profile discoveries of symbiotic cyanobacterial natural products, genomic data is scarce and discovery efforts have remained limited. However, the rise of (meta-)genomic sequencing has improved these efforts, emphasized by a steep increase in publications in recent years. This highlight focuses on selected examples of symbiotic cyanobacterial-derived natural products and their biosyntheses to link chemistry with corresponding biosynthetic logic. Further highlighted are remaining gaps in knowledge for the formation of characteristic structural motifs. It is anticipated that the continued rise of (meta-)genomic next-generation sequencing of symbiontic cyanobacterial systems will lead to many exciting discoveries in the future.
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Affiliation(s)
- Paul M D'Agostino
- Technical University of Dresden, Chair of Technical Biochemistry, Bergstraβe 66, 01069 Dresden, Germany.
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4
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Giugliano R, Della Sala G, Buonocore C, Zannella C, Tedesco P, Palma Esposito F, Ragozzino C, Chianese A, Morone MV, Mazzella V, Núñez-Pons L, Folliero V, Franci G, De Filippis A, Galdiero M, de Pascale D. New Imidazolium Alkaloids with Broad Spectrum of Action from the Marine Bacterium Shewanella aquimarina. Pharmaceutics 2023; 15:2139. [PMID: 37631353 PMCID: PMC10458398 DOI: 10.3390/pharmaceutics15082139] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2023] [Revised: 08/03/2023] [Accepted: 08/11/2023] [Indexed: 08/27/2023] Open
Abstract
The continuous outbreak of drug-resistant bacterial and viral infections imposes the need to search for new drug candidates. Natural products from marine bacteria still inspire the design of pharmaceuticals. Indeed, marine bacteria have unique metabolic flexibility to inhabit each ecological niche, thus expanding their biosynthetic ability to assemble unprecedented molecules. The One-Strain-Many-Compounds approach and tandem mass spectrometry allowed the discovery of a Shewanella aquimarina strain as a source of novel imidazolium alkaloids via molecular networking. The alkaloid mixture was shown to exert bioactivities such as: (a) antibacterial activity against antibiotic-resistant Staphylococcus aureus clinical isolates at 100 µg/mL, (b) synergistic effects with tigecycline and linezolid, (c) restoration of MRSA sensitivity to fosfomycin, and (d) interference with the biofilm formation of S. aureus 6538 and MRSA. Moreover, the mixture showed antiviral activity against viruses with and without envelopes. Indeed, it inhibited the entry of coronavirus HcoV-229E and herpes simplex viruses into human cells and inactivated poliovirus PV-1 in post-infection assay at 200 µg/mL. Finally, at the same concentration, the fraction showed anthelminthic activity against Caenorhabditis elegans, causing 99% mortality after 48 h. The broad-spectrum activities of these compounds are partially due to their biosurfactant behavior and make them promising candidates for breaking down drug-resistant infectious diseases.
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Affiliation(s)
- Rosa Giugliano
- Department of Experimental Medicine, University of Campania “Luigi Vanvitelli”, 80138 Naples, Italy; (R.G.); (C.Z.); (A.C.); (M.V.M.); (A.D.F.)
| | - Gerardo Della Sala
- Department of Ecosustainable Marine Biotechnology, Stazione Zoologica Anton Dohrn, Via Ammiraglio Acton, 55, 80133 Naples, Italy; (G.D.S.); (C.B.); (P.T.); (F.P.E.); (C.R.)
| | - Carmine Buonocore
- Department of Ecosustainable Marine Biotechnology, Stazione Zoologica Anton Dohrn, Via Ammiraglio Acton, 55, 80133 Naples, Italy; (G.D.S.); (C.B.); (P.T.); (F.P.E.); (C.R.)
| | - Carla Zannella
- Department of Experimental Medicine, University of Campania “Luigi Vanvitelli”, 80138 Naples, Italy; (R.G.); (C.Z.); (A.C.); (M.V.M.); (A.D.F.)
| | - Pietro Tedesco
- Department of Ecosustainable Marine Biotechnology, Stazione Zoologica Anton Dohrn, Via Ammiraglio Acton, 55, 80133 Naples, Italy; (G.D.S.); (C.B.); (P.T.); (F.P.E.); (C.R.)
| | - Fortunato Palma Esposito
- Department of Ecosustainable Marine Biotechnology, Stazione Zoologica Anton Dohrn, Via Ammiraglio Acton, 55, 80133 Naples, Italy; (G.D.S.); (C.B.); (P.T.); (F.P.E.); (C.R.)
| | - Costanza Ragozzino
- Department of Ecosustainable Marine Biotechnology, Stazione Zoologica Anton Dohrn, Via Ammiraglio Acton, 55, 80133 Naples, Italy; (G.D.S.); (C.B.); (P.T.); (F.P.E.); (C.R.)
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale F. Stagno d’Alcontres, 31, 98166 Messina, Italy
| | - Annalisa Chianese
- Department of Experimental Medicine, University of Campania “Luigi Vanvitelli”, 80138 Naples, Italy; (R.G.); (C.Z.); (A.C.); (M.V.M.); (A.D.F.)
| | - Maria Vittoria Morone
- Department of Experimental Medicine, University of Campania “Luigi Vanvitelli”, 80138 Naples, Italy; (R.G.); (C.Z.); (A.C.); (M.V.M.); (A.D.F.)
| | - Valerio Mazzella
- Department of Integrative Marine Ecology (EMI), Stazione Zoologica Anton Dohrn, Ischia Marine Centre, Ischia, 80077 Naples, Italy;
- NBFC, National Biodiversity Future Center, 90133 Palermo, Italy;
| | - Laura Núñez-Pons
- NBFC, National Biodiversity Future Center, 90133 Palermo, Italy;
- Department of Integrative Marine Ecology (EMI), Stazione Zoologica Anton Dohrn, Villa Comunale, 80121 Napoli, Italy
| | - Veronica Folliero
- Department of Medicine, Surgery and Dentistry “Scuola Medica Salernitana”, University of Salerno, 84081 Baronissi, Italy; (V.F.); (G.F.)
| | - Gianluigi Franci
- Department of Medicine, Surgery and Dentistry “Scuola Medica Salernitana”, University of Salerno, 84081 Baronissi, Italy; (V.F.); (G.F.)
| | - Anna De Filippis
- Department of Experimental Medicine, University of Campania “Luigi Vanvitelli”, 80138 Naples, Italy; (R.G.); (C.Z.); (A.C.); (M.V.M.); (A.D.F.)
| | - Massimiliano Galdiero
- Department of Experimental Medicine, University of Campania “Luigi Vanvitelli”, 80138 Naples, Italy; (R.G.); (C.Z.); (A.C.); (M.V.M.); (A.D.F.)
| | - Donatella de Pascale
- Department of Ecosustainable Marine Biotechnology, Stazione Zoologica Anton Dohrn, Via Ammiraglio Acton, 55, 80133 Naples, Italy; (G.D.S.); (C.B.); (P.T.); (F.P.E.); (C.R.)
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5
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Ganeshkumar A, Gonçale JC, Rajaram R, Junqueira JC. Anti-Candidal Marine Natural Products: A Review. J Fungi (Basel) 2023; 9:800. [PMID: 37623571 PMCID: PMC10455659 DOI: 10.3390/jof9080800] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2023] [Revised: 07/21/2023] [Accepted: 07/26/2023] [Indexed: 08/26/2023] Open
Abstract
Candida spp. are common opportunistic microorganisms in the human body and can cause mucosal, cutaneous, and systemic infections, mainly in individuals with weakened immune systems. Candida albicans is the most isolated and pathogenic species; however, multi-drug-resistant yeasts like Candida auris have recently been found in many different regions of the world. The increasing development of resistance to common antifungals by Candida species limits the therapeutic options. In light of this, the present review attempts to discuss the significance of marine natural products in controlling the proliferation and metabolism of C. albicans and non-albicans species. Natural compounds produced by sponges, algae, sea cucumber, bacteria, fungi, and other marine organisms have been the subject of numerous studies since the 1980s, with the discovery of several products with different chemical frameworks that can inhibit Candida spp., including antifungal drug-resistant strains. Sponges fall under the topmost category when compared to all other organisms investigated. Terpenoids, sterols, and alkaloids from this group exhibit a wide array of inhibitory activity against different Candida species. Especially, hippolide J, a pair of enantiomeric sesterterpenoids isolated from the marine sponge Hippospongia lachne, exhibited strong activity against Candida albicans, Candida parapsilosis, and Candida glabrata. In addition, a comprehensive analysis was performed to unveil the mechanisms of action and synergistic activity of marine products with conventional antifungals. In general, the results of this review show that the majority of chemicals derived from the marine environment are able to control particular functions of microorganisms belonging to the Candida genus, which can provide insights into designing new anti-candidal therapies.
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Affiliation(s)
- Arumugam Ganeshkumar
- Department of Biosciences and Oral Diagnosis, Institute of Science and Technology, Sao Paulo State University (UNESP), Sao Jose dos Campos 12245-000, Brazil;
- Department of Materials Physics, Saveetha School of Engineering, Saveetha Nagar, Thandalam, Chennai 602105, India
| | - Juliana Caparroz Gonçale
- Department of Biosciences and Oral Diagnosis, Institute of Science and Technology, Sao Paulo State University (UNESP), Sao Jose dos Campos 12245-000, Brazil;
| | - Rajendran Rajaram
- Department of Marine Science, Bharathidasan University, Tiruchirappalli 620024, India;
| | - Juliana Campos Junqueira
- Department of Biosciences and Oral Diagnosis, Institute of Science and Technology, Sao Paulo State University (UNESP), Sao Jose dos Campos 12245-000, Brazil;
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6
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Ngo-Mback MNL, Zeuko'o Menkem E, Marco HG. Antifungal Compounds from Microbial Symbionts Associated with Aquatic Animals and Cellular Targets: A Review. Pathogens 2023; 12:pathogens12040617. [PMID: 37111503 PMCID: PMC10142389 DOI: 10.3390/pathogens12040617] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2023] [Revised: 04/11/2023] [Accepted: 04/13/2023] [Indexed: 04/29/2023] Open
Abstract
Fungal infections continue to be a serious public health problem, leading to an estimated 1.6 million deaths annually. It remains a major cause of mortality for people with a weak or affected immune system, such as those suffering from cancer under aggressive chemotherapies. On the other hand, pathogenic fungi are counted among the most destructive factors affecting crops, causing a third of all food crop losses annually and critically affecting the worldwide economy and food security. However, the limited number currently available and the cytotoxicity of the conventional antifungal drugs, which are not yet properly diversified in terms of mode of action, in addition to resistance phenomena, make the search for new antifungals imperative to improve both human health and food protection. Symbiosis has been a crucial alternative for drug discovery, through which many antimicrobials have been discovered. This review highlights some antifungal models of a defensive symbiosis of microbial symbiont natural products derived from interacting with aquatic animals as one of the best opportunities. Some recorded compounds with supposed novel cell targets such as apoptosis could lead to the development of a multitherapy involving the mutual treatment of fungal infections and other metabolic diseases involving apoptosis in their pathogenesis pathways.
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Affiliation(s)
| | | | - Heather G Marco
- Department of Biological Sciences, University of Cape Town, Private Bag X3, Rondebosch, Cape Town 7701, South Africa
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7
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Selegato DM, Castro-Gamboa I. Enhancing chemical and biological diversity by co-cultivation. Front Microbiol 2023; 14:1117559. [PMID: 36819067 PMCID: PMC9928954 DOI: 10.3389/fmicb.2023.1117559] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2022] [Accepted: 01/06/2023] [Indexed: 02/04/2023] Open
Abstract
In natural product research, microbial metabolites have tremendous potential to provide new therapeutic agents since extremely diverse chemical structures can be found in the nearly infinite microbial population. Conventionally, these specialized metabolites are screened by single-strain cultures. However, owing to the lack of biotic and abiotic interactions in monocultures, the growth conditions are significantly different from those encountered in a natural environment and result in less diversity and the frequent re-isolation of known compounds. In the last decade, several methods have been developed to eventually understand the physiological conditions under which cryptic microbial genes are activated in an attempt to stimulate their biosynthesis and elicit the production of hitherto unexpressed chemical diversity. Among those, co-cultivation is one of the most efficient ways to induce silenced pathways, mimicking the competitive microbial environment for the production and holistic regulation of metabolites, and has become a golden methodology for metabolome expansion. It does not require previous knowledge of the signaling mechanism and genome nor any special equipment for cultivation and data interpretation. Several reviews have shown the potential of co-cultivation to produce new biologically active leads. However, only a few studies have detailed experimental, analytical, and microbiological strategies for efficiently inducing bioactive molecules by co-culture. Therefore, we reviewed studies applying co-culture to induce secondary metabolite pathways to provide insights into experimental variables compatible with high-throughput analytical procedures. Mixed-fermentation publications from 1978 to 2022 were assessed regarding types of co-culture set-ups, metabolic induction, and interaction effects.
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8
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Feng YP, Wang HK, Wu JL, Shao P, Zhou WL, Lai QL, Lin HW, Naman CB, Wang TT, He S. Acremocholone, an Anti-Vibrio Steroid from the Marine Mesophotic Zone Ciocalypta Sponge-Associated Fungus Acremonium sp. NBUF150. Chem Biodivers 2022; 19:e202200028. [PMID: 35194947 DOI: 10.1002/cbdv.202200028] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2022] [Accepted: 02/21/2022] [Indexed: 11/07/2022]
Abstract
Mesophotic coral ecosystems (MCEs) represent an underexplored source of intriguing natural products. Efforts to discover bioactive metabolites from sponge-associated fungi in MCEs identified a new steroid, acremocholone (1) and its three known analogs (2-4), from Acremonium sp. NBUF150. The Acremonium sp. NBUF150 was isolated from a Ciocalypta sponge located 70 m deep within the South China Sea. The planar structures and absolute configuration of 1-4 were determined from NMR-derived spectroscopic data, HR-ESI-MS, and X-ray crystallography. Compound 1 exhibited antimicrobial inhibition against Vibrio scophthalmi, V. shilonii and V. brasiliensis at minimum inhibitory concentrations of 8 μg/mL; compound 2 inhibited V. shilonii and V. brasiliensis at 8 and 32 μg/mL, respectively, and compound 4 inhibited growth of V. brasiliensis at 16 μg/mL. Sponge associated fungi from MCEs represent a promising resource of anti-Vibrio drug leads for aquaculture use.
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Affiliation(s)
- Yun-Ping Feng
- Li Dak Sum Marine Biopharmaceutical Research Center, Department of Marine Pharmacy, College of Food and Pharmaceutical Sciences, Ningbo University, Ningbo, Zhejiang, 315832, China
| | - Hong-Kun Wang
- Li Dak Sum Marine Biopharmaceutical Research Center, Department of Marine Pharmacy, College of Food and Pharmaceutical Sciences, Ningbo University, Ningbo, Zhejiang, 315832, China
| | - Jia-Ling Wu
- Li Dak Sum Marine Biopharmaceutical Research Center, Department of Marine Pharmacy, College of Food and Pharmaceutical Sciences, Ningbo University, Ningbo, Zhejiang, 315832, China
| | - Peng Shao
- College of Fisheries, Tianjin Agricultural University, Tianjin, 300392, China
| | - Wen-Li Zhou
- College of Fisheries, Tianjin Agricultural University, Tianjin, 300392, China
| | - Qi-Liang Lai
- Key Laboratory of Marine Biogenetic Resources, Third Institute of Oceanography, Ministry of Natural Resources of P. R. China, Xiamen, 361005, China
| | - Hou-Wen Lin
- State Key Laboratory of Oncogene and Related Genes, Department of Pharmacy, Research Center for Marine Drugs, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200127, China
| | - C Benjamin Naman
- Li Dak Sum Marine Biopharmaceutical Research Center, Department of Marine Pharmacy, College of Food and Pharmaceutical Sciences, Ningbo University, Ningbo, Zhejiang, 315832, China
| | - Ting-Ting Wang
- Li Dak Sum Marine Biopharmaceutical Research Center, Department of Marine Pharmacy, College of Food and Pharmaceutical Sciences, Ningbo University, Ningbo, Zhejiang, 315832, China
| | - Shan He
- Li Dak Sum Marine Biopharmaceutical Research Center, Department of Marine Pharmacy, College of Food and Pharmaceutical Sciences, Ningbo University, Ningbo, Zhejiang, 315832, China.,Ningbo Institute of Marine Medicine, Peking University, Ningbo, Zhejiang, 315832, China
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9
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Abstract
BACKGROUND Marine ecosystems are hosts to a vast array of organisms, being among the most richly biodiverse locations on the planet. The study of these ecosystems is very important, as they are not only a significant source of food for the world but also have, in recent years, become a prolific source of compounds with therapeutic potential. Studies of aspects of marine life have involved diverse fields of marine science, and the use of metabolomics as an experimental approach has increased in recent years. As part of the "omics" technologies, metabolomics has been used to deepen the understanding of interactions between marine organisms and their environment at a metabolic level and to discover new metabolites produced by these organisms. AIM OF REVIEW This review provides an overview of the use of metabolomics in the study of marine organisms. It also explores the use of metabolomics tools common to other fields such as plants and human metabolomics that could potentially contribute to marine organism studies. It deals with the entire process of a metabolomic study, from sample collection considerations, metabolite extraction, analytical techniques, and data analysis. It also includes an overview of recent applications of metabolomics in fields such as marine ecology and drug discovery and future perspectives of its use in the study of marine organisms. KEY SCIENTIFIC CONCEPTS OF REVIEW The review covers all the steps involved in metabolomic studies of marine organisms including, collection, extraction methods, analytical tools, statistical analysis, and dereplication. It aims to provide insight into all aspects that a newcomer to the field should consider when undertaking marine metabolomics.
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Affiliation(s)
- Lina M Bayona
- Natural Products Laboratory, Institute of Biology, Leiden University, 2333 BE, Leiden, The Netherlands
| | - Nicole J de Voogd
- Naturalis Biodiversity Center, Marine Biodiversity, 2333 CR, Leiden, The Netherlands
- Institute of Environmental Sciences, Leiden University, 2333 CC, Leiden, The Netherlands
| | - Young Hae Choi
- Natural Products Laboratory, Institute of Biology, Leiden University, 2333 BE, Leiden, The Netherlands.
- College of Pharmacy, Kyung Hee University, 130-701, Seoul, Republic of Korea.
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10
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Anteneh YS, Yang Q, Brown MH, Franco CMM. Factors affecting the isolation and diversity of marine sponge-associated bacteria. Appl Microbiol Biotechnol 2022; 106:1729-1744. [PMID: 35103809 PMCID: PMC8882111 DOI: 10.1007/s00253-022-11791-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2021] [Revised: 01/13/2022] [Accepted: 01/17/2022] [Indexed: 12/24/2022]
Abstract
Abstract Marine sponges are an ideal source for isolating as yet undiscovered microorganisms with some sponges having about 50% of their biomass composed of microbial symbionts. This study used a variety of approaches to investigate the culturable diversity of the sponge-associated bacterial community from samples collected from the South Australian marine environment. Twelve sponge samples were selected from two sites and their bacterial population cultivated using seven different agar media at two temperatures and three oxygen levels over 3 months. These isolates were identified using microscopic, macroscopic, and 16S rRNA gene analysis. A total of 1234 bacterial colonies were isolated which consisted of four phyla: Actinobacteria, Firmicutes, Proteobacteria, and Bacteroidetes, containing 21 genera. The diversity of the bacterial population was demonstrated to be influenced by the type of isolation medium, length of the incubation period and temperature, sponge type, and oxygen level. The findings of this study showed that marine sponges of South Australia can yield considerable bacterial culturable diversity if a comprehensive isolation strategy is implemented. Two sponges, with the highest and the lowest diversity of culturable isolates, were examined using next-generation sequencing to better profile the bacterial population. A marked difference in terms of phyla and genera was observed using culture-based and culture-independent approaches. This observed variation displays the importance of utilizing both methods to reflect a more complete picture of the microbial population of marine sponges. Key points Improved bacterial diversity due to long incubations, 2 temperatures, and 3 oxygen levels. Isolates identified by morphology, restriction digests, and 16S rRNA gene sequencing. At least 70% of culturable genera were not revealed by NGS methods.
Supplementary Information The online version contains supplementary material available at 10.1007/s00253-022-11791-8.
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Affiliation(s)
- Yitayal S Anteneh
- Medical Biotechnology, College of Medicine and Public Health, Flinders University, Bedford Park, SA, 5042, Australia.,Department of Medical Microbiology, College of Medicine, Addis Ababa University, Addis Ababa, Ethiopia.,Centre for Marine Bioproducts Development, College of Medicine and Public Health, Flinders University, Bedford Park, SA, 5042, Australia
| | - Qi Yang
- Centre for Marine Bioproducts Development, College of Medicine and Public Health, Flinders University, Bedford Park, SA, 5042, Australia.,Center for Marine Drugs, State Key Laboratory of Oncogene and Related Genes, Department of Pharmacy, School of Medicine, Renji Hospital, Shanghai Jiao Tong University, Shanghai, 200127, China
| | - Melissa H Brown
- College of Science and Engineering, Flinders University, Bedford Park, SA, 5042, Australia
| | - Christopher M M Franco
- Medical Biotechnology, College of Medicine and Public Health, Flinders University, Bedford Park, SA, 5042, Australia. .,Centre for Marine Bioproducts Development, College of Medicine and Public Health, Flinders University, Bedford Park, SA, 5042, Australia.
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11
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Panggabean JA, Adiguna SP, Murniasih T, Rahmawati SI, Bayu A, Putra MY. Structure–Activity Relationship of Cytotoxic Natural Products from Indonesian Marine Sponges. REVISTA BRASILEIRA DE FARMACOGNOSIA 2022; 32:12-38. [PMID: 35034994 PMCID: PMC8740879 DOI: 10.1007/s43450-021-00195-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/11/2021] [Accepted: 09/15/2021] [Indexed: 11/29/2022]
Abstract
Indonesian marine natural products have been one of the most promising sources in the race to obtain potential drugs for cancer treatment. One of the primary producers of cytotoxic compounds is sponges. However, there are still limited sources of comprehensive reviews related to the relationship between the structure of isolated compounds and their cytotoxic activity. This review remarks the attempt to provide a preliminary guidance from the perspective of structure–activity relationship and its participation on marine natural products research. This guidance is segregated by the compound’s classes and their cytotoxic targets to obtain and organized a reliable summary of inter-study of the isolated compounds and their cytotoxicity. Structure–activity relationship is well-known for its ability to tune the bioactivity of a specific compound, especially on synthetic organic chemistry and in silico study but rarely used on natural product chemistry. The present review is intended to narrow down the endless possibilities of cytotoxicity by giving a predictable structure–activity relationship for active compounds. In addition, bioactive framework leads were selected by uncovering a noticeable structure–activity relationship with the intervention of cytotoxic agents from natural sources, especially Indonesian marine sponge.
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Affiliation(s)
- Jonathan A. Panggabean
- Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Gadjah Mada, Bulaksumur, Yogyakarta, 55281 Indonesia
- Research Center for Biotechnology, Research Organization for Life Science, National Research and Innovation Agency (BRIN), Jalan Raya Jakarta-Bogor KM. 46, Cibinong, Jawa Barat 16911 Bogor, Indonesia
| | - Sya’ban P. Adiguna
- Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Gadjah Mada, Bulaksumur, Yogyakarta, 55281 Indonesia
- Research Center for Biotechnology, Research Organization for Life Science, National Research and Innovation Agency (BRIN), Jalan Raya Jakarta-Bogor KM. 46, Cibinong, Jawa Barat 16911 Bogor, Indonesia
| | - Tutik Murniasih
- Research Center for Biotechnology, Research Organization for Life Science, National Research and Innovation Agency (BRIN), Jalan Raya Jakarta-Bogor KM. 46, Cibinong, Jawa Barat 16911 Bogor, Indonesia
| | - Siti I. Rahmawati
- Research Center for Biotechnology, Research Organization for Life Science, National Research and Innovation Agency (BRIN), Jalan Raya Jakarta-Bogor KM. 46, Cibinong, Jawa Barat 16911 Bogor, Indonesia
| | - Asep Bayu
- Research Center for Biotechnology, Research Organization for Life Science, National Research and Innovation Agency (BRIN), Jalan Raya Jakarta-Bogor KM. 46, Cibinong, Jawa Barat 16911 Bogor, Indonesia
| | - Masteria Y. Putra
- Research Center for Biotechnology, Research Organization for Life Science, National Research and Innovation Agency (BRIN), Jalan Raya Jakarta-Bogor KM. 46, Cibinong, Jawa Barat 16911 Bogor, Indonesia
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12
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Couttolenc A, Medina ME, Trigos Á, Espinoza C. Antioxidant capacity of fungi associated with corals and sponges of the reef system of Veracruz, Mexico. ELECTRON J BIOTECHN 2022. [DOI: 10.1016/j.ejbt.2021.11.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
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13
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Ruocco N, Esposito R, Zupo V, Costantini M. Metataxonomic Analysis of Bacterial Diversity Associated with Marine Organisms. Methods Mol Biol 2022; 2498:253-264. [PMID: 35727548 DOI: 10.1007/978-1-0716-2313-8_12] [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] [Indexed: 06/15/2023]
Abstract
In the present era marine biotechnologies are dominating the world of scientific research assisted by great advances in molecular biology techniques, and microbial community analysis provides useful tool to investigate their diversity and their potential for biotechnological applications. In fact, several marine organisms harbor diverse microbial associated communities, which play key roles for their host functioning and are rich sources of bioactive natural compounds. Here, we describe the fundamental steps of metataxonomic analysis of microbial communities associated with marine organisms.
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Affiliation(s)
- Nadia Ruocco
- Stazione Zoologica Anton Dohrn, Department of Ecosustainable Marine Biotechnology, Naples, Italy
| | - Roberta Esposito
- Stazione Zoologica Anton Dohrn, Department of Ecosustainable Marine Biotechnology, Naples, Italy
- Department of Biology, University of Naples Federico II, Complesso Universitario di Monte Sant'Angelo, Naples, Italy
| | - Valerio Zupo
- Stazione Zoologica Anton Dohrn, Department of Ecosustainable Marine Biotechnology, Naples, Italy
| | - Maria Costantini
- Stazione Zoologica Anton Dohrn, Department of Ecosustainable Marine Biotechnology, Naples, Italy.
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Bioactivity and Biotechnological Overview of Naturally Occurring Compounds from the Dinoflagellate Family Symbiodiniaceae: A Systematic Review. ScientificWorldJournal 2021; 2021:1983589. [PMID: 34955690 PMCID: PMC8709762 DOI: 10.1155/2021/1983589] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2021] [Accepted: 11/27/2021] [Indexed: 11/17/2022] Open
Abstract
Marine invertebrates are a significant source of biologically active compounds. Recent studies have highlighted the role of microbiota associated with marine invertebrates in the production of bioactive compounds. Corals and sponges are the main marine invertebrates producing bioactive substances, and Symbiodiniaceae dinoflagellates are well-recognized endosymbionts with corals and sponges playing vital functions. The biological properties of Symbiodiniaceae-derived compounds have garnered attention in the past decades owing to their ecological implications and potentiality for bioprospecting initiatives. This study aims to systematically review studies on bioactivities and potential biotechnological applications of Symbiodiniaceae-derived compounds. The PRISMA guidelines were followed. Our study showed that anti-inflammatory and vasoconstrictive activities of Symbiodiniaceae-derived compounds have been the most investigated. However, very few studies have been published, with in vitro culturing of Symbiodiniaceae being the most significant challenge. Therefore, we surveyed for the metabolites reported so far, analyzed their chemodiversity, and discussed approaches to overcome culturing-related limitations.
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15
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Voser TM, Campbell MD, Carroll AR. How different are marine microbial natural products compared to their terrestrial counterparts? Nat Prod Rep 2021; 39:7-19. [PMID: 34651634 DOI: 10.1039/d1np00051a] [Citation(s) in RCA: 37] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Covering: 1877 to 2020A key challenge in natural products research is the selection of biodiversity to yield novel chemistry. Recently, marine microorganisms have become a preferred source. But how novel are marine microorganism natural products compared to those reported from terrestrial microbes? Cluster analysis of chemical fingerprints and molecular scaffold analysis of 55 817 compounds reported from marine and terrestrial microorganisms, and marine macro-organisms showed that 76.7% of the compounds isolated from marine microorganisms are closely related to compounds isolated from terrestrial microorganisms. Only 14.3% of marine microorganism natural products are unique when marine macro-organism natural products are also considered. Studies targeting marine specific and understudied microbial phyla result in a higher likelihood of finding marine specific compounds, whereas the depth and geographic location of microorganism collection have little influence. We recommend marine targeted strain isolation, incorporating early use of genomic sequencing to guide strain selection, innovation in culture media and cultivation techniques and the application of cheminformatics tools to focus on unique natural product diversity, rather than the dereplication of known compounds.
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Affiliation(s)
- Tanja M Voser
- School of Environment and Science, Griffith University, Gold Coast, Australia. .,Griffith Institute for Drug Discovery, Griffith University, Brisbane, Australia.
| | - Max D Campbell
- School of Environment and Science, Griffith University, Gold Coast, Australia. .,Australian Rivers Institute-Coasts and Estuaries, Griffith University, Nathan, Australia.
| | - Anthony R Carroll
- School of Environment and Science, Griffith University, Gold Coast, Australia. .,Griffith Institute for Drug Discovery, Griffith University, Brisbane, Australia.
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16
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Potential Antiviral Properties of Industrially Important Marine Algal Polysaccharides and Their Significance in Fighting a Future Viral Pandemic. Viruses 2021; 13:v13091817. [PMID: 34578399 PMCID: PMC8473461 DOI: 10.3390/v13091817] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2021] [Accepted: 08/27/2021] [Indexed: 12/16/2022] Open
Abstract
Over the decades, the world has witnessed diverse virus associated pandemics. The significant inhibitory effects of marine sulfated polysaccharides against SARS-CoV-2 shows its therapeutic potential in future biomedical applications and drug development. Algal polysaccharides exhibited significant role in antimicrobial, antitumor, antioxidative, antiviral, anticoagulant, antihepatotoxic and immunomodulating activities. Owing to their health benefits, the sulfated polysaccharides from marine algae are a great deal of interest globally. Algal polysaccharides such as agar, alginate, carrageenans, porphyran, fucoidan, laminaran and ulvans are investigated for their nutraceutical potential at different stages of infection processes, structural diversity, complexity and mechanism of action. In this review, we focus on the recent antiviral studies of the marine algae-based polysaccharides and their potential towards antiviral medicines.
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Cha HJ, Chiang MWL, Guo SY, Lin SM, Pang KL. Culturable Fungal Community of Pterocladiella capillacea in Keelung, Taiwan: Effects of Surface Sterilization Method and Isolation Medium. J Fungi (Basel) 2021; 7:651. [PMID: 34436190 PMCID: PMC8399158 DOI: 10.3390/jof7080651] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2021] [Revised: 08/06/2021] [Accepted: 08/09/2021] [Indexed: 12/24/2022] Open
Abstract
Fungi associated with macroalgae are less known when compared with those on wood in the marine environment. In this study, we assessed the diversity of fungi associated with the red alga Pterocladiella capillacea at Chao-Jin Park, Keelung, Taiwan. Algal segments of healthy and dead thalli were washed/sterilized with different solutions (sterile artificial seawater, 70% ethanol, and 4% sodium hypochlorite), plated on three different media (glucose-yeast extract-peptone seawater agar (GYPS), potato dextrose seawater agar (PDAS), and artificial seawater agar (SA)), and isolated as pure cultures. Identification was mainly based on BLAST search analysis of the internal transcribed spacers of rDNA (ITS). The highest isolation frequency (no. of segment with fungi/total no. of segment × 100) was in dead thalli (61.23%), thalli washed with seawater (88.38%), and thalli plated on GYPS (62.10%). A total of 3187 isolates were cultured, representing 129 taxa (in 67 genera); the higher species richness was isolated from healthy thalli (119 species), thalli washed with seawater (111 species), and on GYPS (112 species). Ascomycota (Eurotiales, Hypocreales, Capnodiales, Pleosporales, Xylariales) dominated the fungal community in P. capillacea with many basidiomycetous yeasts and few Mucoromycota. Aspergillus, Cladosporium, Penicillium (Ascomycota), and Rhodosporidium (Basidiomycota) were the dominant genera associated with the alga. The surface washing/sterilization schemes of algal thalli affected fungal diversity, but the isolation media used did not. While these genera are known producers of antimicrobial secondary metabolites, they might form a mutualistic relationship with P. capillacea by exchanging nutrients from photosynthesis for protection from microbial diseases.
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Affiliation(s)
- Hyo-Jung Cha
- Centre of Excellence for the Oceans and Institute of Marine Biology, National Taiwan Ocean University, 2 Pei-Ning Road, Keelung 202301, Taiwan; (H.-J.C.); (S.-Y.G.); (S.-M.L.)
| | - Michael W. L. Chiang
- Department of Chemistry, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon Tong, Hong Kong;
| | - Sheng-Yu Guo
- Centre of Excellence for the Oceans and Institute of Marine Biology, National Taiwan Ocean University, 2 Pei-Ning Road, Keelung 202301, Taiwan; (H.-J.C.); (S.-Y.G.); (S.-M.L.)
| | - Showe-Mei Lin
- Centre of Excellence for the Oceans and Institute of Marine Biology, National Taiwan Ocean University, 2 Pei-Ning Road, Keelung 202301, Taiwan; (H.-J.C.); (S.-Y.G.); (S.-M.L.)
| | - Ka-Lai Pang
- Centre of Excellence for the Oceans and Institute of Marine Biology, National Taiwan Ocean University, 2 Pei-Ning Road, Keelung 202301, Taiwan; (H.-J.C.); (S.-Y.G.); (S.-M.L.)
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Jung D, Machida K, Nakao Y, Kindaichi T, Ohashi A, Aoi Y. Triggering Growth via Growth Initiation Factors in Nature: A Putative Mechanism for in situ Cultivation of Previously Uncultivated Microorganisms. Front Microbiol 2021; 12:537194. [PMID: 34017313 PMCID: PMC8129545 DOI: 10.3389/fmicb.2021.537194] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2020] [Accepted: 04/14/2021] [Indexed: 01/21/2023] Open
Abstract
Most microorganisms resist cultivation under standard laboratory conditions. On the other hand, cultivating microbes in a membrane-bound device incubated in nature (in situ cultivation) can be an effective approach to overcome this limitation. In the present study, we applied in situ cultivation to isolate diverse previously uncultivated marine sponge-associated microbes and comparatively analyzed this method's efficiencies with those of the conventional method. Then, we attempted to investigate the key and previously unidentified mechanism of growing uncultivated microorganisms by in situ cultivation focusing on growth triggering via growth initiation factor. Significantly more novel and diverse microbial types were isolated via in situ cultivation than by standard direct plating (SDP). We hypothesized that some of environmental microorganisms which resist cultivation are in a non-growing state and require growth initiation factors for the recovery and that these can be provided from the environment (in this study from marine sponge). According to the hypothesis, the effect of the sponge extract on recovery on agar medium was compared between strains derived from in situ and SDP cultivation. Adding small amounts of the sponge extracts to the medium elevated the colony-formation efficiencies of the in situ strains at the starvation recovery step, while it showed no positive effect on that of SDP strains. Conversely, specific growth rates or saturated cell densities of all tested strains were not positively affected. These results indicate that, (1) the sponge extract contains chemical compounds that facilitate recovery of non-growing microbes, (2) these substances worked on the in situ strains, and (3) growth initiation factor in the sponge extract did not continuously promote growth activity but worked as triggers for regrowth (resuscitation from non-growing state).
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Affiliation(s)
- Dawoon Jung
- Department of Molecular Biotechnology, Graduate School of Advanced Sciences of Matter, Hiroshima University, Higashihiroshima, Japan
| | - Koshi Machida
- Research Institute for Science and Engineering, Waseda University, Tokyo, Japan
| | - Yoichi Nakao
- Research Institute for Science and Engineering, Waseda University, Tokyo, Japan
- Department of Chemistry and Biochemistry, Graduate School of Advanced Science and Engineering, Waseda University, Tokyo, Japan
| | - Tomonori Kindaichi
- Department of Civil and Environmental Engineering, Graduate School of Engineering, Hiroshima University, Higashihiroshima, Japan
| | - Akiyoshi Ohashi
- Department of Civil and Environmental Engineering, Graduate School of Engineering, Hiroshima University, Higashihiroshima, Japan
| | - Yoshiteru Aoi
- Department of Molecular Biotechnology, Graduate School of Advanced Sciences of Matter, Hiroshima University, Higashihiroshima, Japan
- Unit of Biotechnology, Graduate School of Integrated Sciences for Life, Hiroshima University, Higashihiroshima, Japan
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19
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Jung D, Liu L, He S. Application of in situ cultivation in marine microbial resource mining. MARINE LIFE SCIENCE & TECHNOLOGY 2021; 3:148-161. [PMID: 37073342 PMCID: PMC10077220 DOI: 10.1007/s42995-020-00063-x] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Accepted: 06/28/2020] [Indexed: 05/03/2023]
Abstract
Microbial communities in marine habitats are regarded as underexplored reservoirs for discovering new natural products with potential application. However, only a few microbes in nature can be cultivated in the laboratory. This has led to the development of a variety of isolation and cultivation methods, and in situ cultivation is one of the most popular. Diverse in situ cultivation methods, with the same basic principle, have been applied to a variety of environmental samples. Compared with conventional approaches, these new methods are able to cultivate previously uncultured and phylogenetically novel microbes, many with biotechnological potential. This review introduces the various in situ cultivation methods for the isolation of previously uncultured microbial species and their potential for marine microbial resource mining. Furthermore, studies that investigated the key and previously unidentified mechanisms of growing uncultivated microorganisms by in situ cultivation, which will shed light on the understanding of microbial uncultivability, were also reviewed.
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Affiliation(s)
- Dawoon Jung
- Li Dak Sum Yip Yio Chin Kenneth Li Marine Biopharmaceutical Research Center, College of Food and Pharmaceutical Sciences, Ningbo University, Ningbo, 315832 China
| | - Liwei Liu
- Li Dak Sum Yip Yio Chin Kenneth Li Marine Biopharmaceutical Research Center, College of Food and Pharmaceutical Sciences, Ningbo University, Ningbo, 315832 China
| | - Shan He
- Li Dak Sum Yip Yio Chin Kenneth Li Marine Biopharmaceutical Research Center, College of Food and Pharmaceutical Sciences, Ningbo University, Ningbo, 315832 China
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20
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El-Bondkly EAM, El-Bondkly AAM, El-Bondkly AAM. Marine endophytic fungal metabolites: A whole new world of pharmaceutical therapy exploration. Heliyon 2021; 7:e06362. [PMID: 33869822 PMCID: PMC8035529 DOI: 10.1016/j.heliyon.2021.e06362] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2020] [Revised: 04/16/2020] [Accepted: 02/22/2021] [Indexed: 12/19/2022] Open
Abstract
The growing threat arises due to diseases such as cancer and the infections around the world leading to a critical requirement for novel and constructive compounds with unique ways of action capable of combating these deadly diseases. At present, it is evident that endophytic fungi constitute an enormous as well as comparatively untapped source of great biodiversity that can be considered as a wellspring of effective novel natural products for medical, agricultural and industrial use. Marine endophytic fungi have been found in every marine plants (algae, seagrass, driftwood, mangrove plants), marine vertebrates (mainly, fish) or marine invertebrates (mainly, sponge and coral) inter- and intra-cellular without causing any palpable symptoms of illness. Since evolution of microbes and eukaryotes to a higher level, coevolution has resulted in specific interaction mechanisms. Endophytic fungi are known to influence the life cycle and are necessary for the homeostasis of their eukaryotic hosts and the chemical signals of their host have been shown to activate gene expression in endophytes to induce expression of endophytic secondary metabolites. Marine endophytic fungi are receiving increasing attention by chemists because of their varied and structurally unmatched compounds that have strong biological roles in life as lead pharmaceutical compounds, including anticancer, antiviral, insulin mimetic, antineurodegenerative, antimicrobial, antioxidant and immuno-suppressant compounds. Moreover, fungal endophytes proved to have different biological activities for exploitation in the environmental and agricultural sustainability.
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21
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Park D, Swayambhu G, Lyga T, Pfeifer BA. Complex natural product production methods and options. Synth Syst Biotechnol 2021; 6:1-11. [PMID: 33474503 PMCID: PMC7803631 DOI: 10.1016/j.synbio.2020.12.001] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Revised: 11/19/2020] [Accepted: 12/21/2020] [Indexed: 12/29/2022] Open
Abstract
Natural products have had a major impact upon quality of life, with antibiotics as a classic example of having a transformative impact upon human health. In this contribution, we will highlight both historic and emerging methods of natural product bio-manufacturing. Traditional methods of natural product production relied upon native cellular host systems. In this context, pragmatic and effective methodologies were established to enable widespread access to natural products. In reviewing such strategies, we will also highlight the development of heterologous natural product biosynthesis, which relies instead on a surrogate host system theoretically capable of advanced production potential. In comparing native and heterologous systems, we will comment on the base organisms used for natural product biosynthesis and how the properties of such cellular hosts dictate scaled engineering practices to facilitate compound distribution. In concluding the article, we will examine novel efforts in production practices that entirely eliminate the constraints of cellular production hosts. That is, cell free production efforts will be introduced and reviewed for the purpose of complex natural product biosynthesis. Included in this final analysis will be research efforts made on our part to test the cell free biosynthesis of the complex polyketide antibiotic natural product erythromycin.
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Affiliation(s)
- Dongwon Park
- Department of Chemical and Biological Engineering, University at Buffalo, The State University of New York, Buffalo, NY, USA
| | - Girish Swayambhu
- Department of Chemical and Biological Engineering, University at Buffalo, The State University of New York, Buffalo, NY, USA
| | - Thomas Lyga
- Department of Chemical and Biological Engineering, University at Buffalo, The State University of New York, Buffalo, NY, USA
| | - Blaine A Pfeifer
- Department of Chemical and Biological Engineering, University at Buffalo, The State University of New York, Buffalo, NY, USA
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22
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Bioactive Secondary Metabolites from Psychrophilic Fungi and Their Industrial Importance. Fungal Biol 2021. [DOI: 10.1007/978-3-030-85603-8_10] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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23
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Metabolomic study of marine Streptomyces sp.: Secondary metabolites and the production of potential anticancer compounds. PLoS One 2020; 15:e0244385. [PMID: 33347500 PMCID: PMC7751980 DOI: 10.1371/journal.pone.0244385] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2020] [Accepted: 12/08/2020] [Indexed: 02/07/2023] Open
Abstract
Resorting to a One Strain Many Compounds (OSMAC) approach, the marine Streptomyces sp. BRB081 strain was grown in six different media settings over 1, 2, 3 or 7 days. Extractions of mycelium and broth were conducted separately for each media and cultivation period by sonication using methanol/acetone 1:1 and agitation with ethyl acetate, respectively. All methanol/acetone and ethyl acetate crude extracts were analysed by HPLC-MS/MS and data treatment was performed through GNPS platform using MZmine 2 software. In parallel, the genome was sequenced, assembled and mined to search for biosynthetic gene clusters (BGC) of secondary metabolites using the AntiSMASH 5.0 software. Spectral library search tool allowed the annotation of desferrioxamines, fatty acid amides, diketopiperazines, xanthurenic acid and, remarkably, the cyclic octapeptides surugamides. Molecular network analysis allowed the observation of the surugamides cluster, where surugamide A and the protonated molecule corresponding to the B-E isomers, as well as two potentially new analogues, were detected. Data treatment through MZmine 2 software allowed to distinguish that the largest amount of surugamides was obtained by cultivating BRB081 in SCB medium during 7 days and extraction of culture broth. Using the same data treatment, a chemical barcode was created for easy visualization and comparison of the metabolites produced overtime in all media. By genome mining of BRB081 four regions of biosynthetic gene clusters of secondary metabolites were detected supporting the metabolic data. Cytotoxic evaluation of all crude extracts using MTT assay revealed the highest bioactivity was also observed for extracts obtained in the optimal conditions as those for surugamides production, suggesting these to be the main active compounds herein. This method allowed the identification of compounds in the crude extracts and guided the selection of best conditions for production of bioactive compounds.
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Salikin NH, Nappi J, Majzoub ME, Egan S. Combating Parasitic Nematode Infections, Newly Discovered Antinematode Compounds from Marine Epiphytic Bacteria. Microorganisms 2020; 8:E1963. [PMID: 33322253 PMCID: PMC7764037 DOI: 10.3390/microorganisms8121963] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2020] [Revised: 12/08/2020] [Accepted: 12/08/2020] [Indexed: 02/06/2023] Open
Abstract
Parasitic nematode infections cause debilitating diseases and impede economic productivity. Antinematode chemotherapies are fundamental to modern medicine and are also important for industries including agriculture, aquaculture and animal health. However, the lack of suitable treatments for some diseases and the rise of nematode resistance to many available therapies necessitates the discovery and development of new drugs. Here, marine epiphytic bacteria represent a promising repository of newly discovered antinematode compounds. Epiphytic bacteria are ubiquitous on marine surfaces where they are under constant pressure of grazing by bacterivorous predators (e.g., protozoans and nematodes). Studies have shown that these bacteria have developed defense strategies to prevent grazers by producing toxic bioactive compounds. Although several active metabolites against nematodes have been identified from marine bacteria, drug discovery from marine microorganisms remains underexplored. In this review, we aim to provide further insight into the need and potential for marine epiphytic bacteria to become a new source of antinematode drugs. We discuss current and emerging strategies, including culture-independent high throughput screening and the utilization of Caenorhabditis elegans as a model target organism, which will be required to advance antinematode drug discovery and development from marine microbial sources.
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Affiliation(s)
- Nor Hawani Salikin
- Centre for Marine Science and Innovation, School of Biological, Earth and Environmental Sciences, UNSW, Sydney, NSW 2052, Australia; (N.H.S.); (J.N.); (M.E.M.)
- School of Industrial Technology, Universiti Sains Malaysia, USM, 11800 Penang, Malaysia
| | - Jadranka Nappi
- Centre for Marine Science and Innovation, School of Biological, Earth and Environmental Sciences, UNSW, Sydney, NSW 2052, Australia; (N.H.S.); (J.N.); (M.E.M.)
| | - Marwan E. Majzoub
- Centre for Marine Science and Innovation, School of Biological, Earth and Environmental Sciences, UNSW, Sydney, NSW 2052, Australia; (N.H.S.); (J.N.); (M.E.M.)
| | - Suhelen Egan
- Centre for Marine Science and Innovation, School of Biological, Earth and Environmental Sciences, UNSW, Sydney, NSW 2052, Australia; (N.H.S.); (J.N.); (M.E.M.)
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Human Peripheral Blood Dendritic Cell and T Cell Activation by Codium fragile Polysaccharide. Mar Drugs 2020; 18:md18110535. [PMID: 33120897 PMCID: PMC7692045 DOI: 10.3390/md18110535] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2020] [Revised: 10/11/2020] [Accepted: 10/23/2020] [Indexed: 12/11/2022] Open
Abstract
Natural polysaccharides exhibit an immunostimulatory effect with low toxicity in humans and animals. It has shown that polysaccharide extracted from Codium fragile (CFP) induces anti-cancer immunity by dendritic cell (DC) activation, while the effect of CFP has not examined in the human immune cells. In this study, we found that CFP promoted the upregulation of CD80, CD83 and CD86 and major histocompatibility complex (MHC) class I and II in human monocyte-derived dendritic cells (MDDCs). In addition, CFP induced the production of proinflammatory cytokines in MDDCs. Moreover, CFP directly induced the activation of Blood Dendritic Cell Antigen (BDCA)1+ and BDCA3+ subsets of human peripheral blood DCs (PBDCs). The CFP-stimulated BDCA1+ PBDCs further promoted activation and proliferation of syngeneic CD4 T cells. The CFP-activated BDCA3+ PBDCs activated syngeneic CD8 T cells, which produced cytotoxic mediators, namely, cytotoxic T lymphocytes. These results suggest that CFP may be a candidate molecule for enhancing immune activation in humans.
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Marine Fungus Aspergillus chevalieri TM2-S6 Extract Protects Skin Fibroblasts from Oxidative Stress. Mar Drugs 2020; 18:md18090460. [PMID: 32911774 PMCID: PMC7551392 DOI: 10.3390/md18090460] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Revised: 08/29/2020] [Accepted: 09/04/2020] [Indexed: 01/04/2023] Open
Abstract
The strain Aspergillus chevalieri TM2-S6 was isolated from the sponge Axinella and identified according to internal transcribed spacer (ITS) molecular sequence homology with Aspergillus species from the section Restricti. The strain was cultivated 9 days on potato dextrose broth (PDB), and the medium evaluated as antioxidant on primary normal human dermal fibroblasts (NHDF). The cultivation broth was submitted to sterile filtration, lyophilized and used without any further processing to give the Aspergillus chevalieri TM2-S6 cultivation broth ingredient named ACBB. ACCB contains two main compounds: tetrahydroauroglaucin and flavoglaucin. Under oxidative stress, ACCB showed a significant promotion of cell viability. To elucidate the mechanism of action, the impact on a panel of hundreds of genes involved in fibroblast physiology was evaluated. Thus, ACCB stimulates cell proliferation (VEGFA, TGFB3), antioxidant response (GPX1, SOD1, NRF2), and extracellular matrix organization (COL1A1, COL3A1, CD44, MMP14). ACCD also reduced aging (SIRT1, SIRT2, FOXO3). These findings indicate that Aspergillus chevalieri TM2-S6 cultivation broth exhibits significant in vitro skin protection of human fibroblasts under oxidative stress, making it a potential cosmetic ingredient.
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Lundy TA, Mori S, Garneau-Tsodikova S. A thorough analysis and categorization of bacterial interrupted adenylation domains, including previously unidentified families. RSC Chem Biol 2020; 1:233-250. [PMID: 34458763 PMCID: PMC8341866 DOI: 10.1039/d0cb00092b] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Accepted: 08/04/2020] [Indexed: 11/25/2022] Open
Abstract
Interrupted adenylation (A) domains are key to the immense structural diversity seen in the nonribosomal peptide (NRP) class of natural products (NPs). Interrupted A domains are A domains that contain within them the catalytic portion of another domain, most commonly a methylation (M) domain. It has been well documented that methylation events occur with extreme specificity on either the backbone (N-) or side chain (O- or S-) of the amino acid (or amino acid-like) building blocks of NRPs. Here, through taxonomic and phylogenetic analyses as well as multiple sequence alignments, we evaluated the similarities and differences between interrupted A domains. We probed their taxonomic distribution amongst bacterial organisms, their evolutionary relatedness, and described conserved motifs of each type of M domain found to be embedded in interrupted A domains. Additionally, we categorized interrupted A domains and the M domains within them into a total of seven distinct families and six different types, respectively. The families of interrupted A domains include two new families, 6 and 7, that possess new architectures. Rather than being interrupted between the previously described a2–a3 or a8–a9 of the ten conserved A domain sequence motifs (a1–a10), family 6 contains an M domain between a6–a7, a previously unknown interruption site. Family 7 demonstrates that di-interrupted A domains exist in Nature, containing an M domain between a2–a3 as well as one between a6–a7, displaying a novel arrangement. These in-depth investigations of amino acid sequences deposited in the NCBI database highlighted the prevalence of interrupted A domains in bacterial organisms, with each family of interrupted A domains having a different taxonomic distribution. They also emphasized the importance of utilizing a broad range of bacteria for NP discovery. Categorization of the families of interrupted A domains and types of M domains allowed for a better understanding of the trends of naturally occurring interrupted A domains, which illuminated patterns and insights on how to harness them for future engineering studies. In-depth study of intriguing bacterial interrupted adenylation domains from seven distinct families and six different types.![]()
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Affiliation(s)
- Taylor A Lundy
- University of Kentucky, Department of Pharmaceutical Sciences, College of Pharmacy Lexington KY 40536-0596 USA
| | - Shogo Mori
- University of Kentucky, Department of Pharmaceutical Sciences, College of Pharmacy Lexington KY 40536-0596 USA
| | - Sylvie Garneau-Tsodikova
- University of Kentucky, Department of Pharmaceutical Sciences, College of Pharmacy Lexington KY 40536-0596 USA
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Secondary Metabolites from the Culture of the Marine-derived Fungus Paradendryphiella salina PC 362H and Evaluation of the Anticancer Activity of Its Metabolite Hyalodendrin. Mar Drugs 2020; 18:md18040191. [PMID: 32260204 PMCID: PMC7230232 DOI: 10.3390/md18040191] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2019] [Revised: 03/30/2020] [Accepted: 03/31/2020] [Indexed: 12/24/2022] Open
Abstract
High-throughput screening assays have been designed to identify compounds capable of inhibiting phenotypes involved in cancer aggressiveness. However, most studies used commercially available chemical libraries. This prompted us to explore natural products isolated from marine-derived fungi as a new source of molecules. In this study, we established a chemical library from 99 strains corresponding to 45 molecular operational taxonomic units and evaluated their anticancer activity against the MCF7 epithelial cancer cell line and its invasive stem cell-like MCF7-Sh-WISP2 counterpart. We identified the marine fungal Paradendryphiella salina PC 362H strain, isolated from the brown alga Pelvetia caniculata (PC), as one of the most promising fungi which produce active compounds. Further chemical and biological characterizations of the culture of the Paradendryphiella salina PC 362H strain identified (-)-hyalodendrin as the active secondary metabolite responsible for the cytotoxic activity of the crude extract. The antitumor activity of (-)-hyalodendrin was not only limited to the MCF7 cell lines, but also prominent on cancer cells with invasive phenotypes including colorectal cancer cells resistant to chemotherapy. Further investigations showed that treatment of MCF7-Sh-WISP2 cells with (-)-hyalodendrin induced changes in the phosphorylation status of p53 and altered expression of HSP60, HSP70 and PRAS40 proteins. Altogether, our study reveals that this uninvestigated marine fungal crude extract possesses a strong therapeutic potential against tumor cells with aggressive phenotypes and confirms that members of the epidithiodioxopiperazines are interesting fungal toxins with anticancer activities.
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Abd El-Rahman TMA, Tharwat NA, Abo El-Souad SMS, El-Beih AA, El-Diwany AI. Biological activities and variation of symbiotic fungi isolated from Coral reefs collected from Red Sea in Egypt. Mycology 2020; 11:243-255. [PMID: 33062385 PMCID: PMC7534340 DOI: 10.1080/21501203.2020.1741470] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022] Open
Abstract
Ten specimens of coral reefs were collected from the Red Sea in the Ein El-Sukhna region. Fungal isolation was done using two media, Dextrose Yeast Extract Agar (DYA) and Rose Bengal Agar (RBA). The morphological traits identified 18 fungal isolates belonging to the phyla Ascomycota, Mucoromycota and Deuteromycota. Five genera in three orders have been isolated: Eutrotiales (Aspergillus, Penicillium and Byssochlamys), Mucorales (Rhizopus) and Moniliales (Curvularia). The heat mapping clustering of the isolated fungi declared that Aspergillus and Penicillium were the most frequently isolate fungi in coral reefs. It was found that A. fumigatus colonised eight coral samples with 80% colonisation rate. Moreover, about 50% of the isolated fungal species were specific to one coral reef only such as A.candidus and A.carneus isolated from Isophyllastrea rigida only, A.japonicus and A.ochraceopetaliformis from Glaxaea fascicularis, A.niger van Tieghem from Porites astreoides, A.sydowii, A.terreus and P.waksmanii from Cladocora arbuscula, P.janthinellum from Pterogorgia guadalupensis and Curvularia tuberculata, Byssochlamys spectabilis and Rhizopus oryzae from Acropora humilis. Biological activities (antimicrobial, antioxidant antiradical and cytotoxicity) of the most predominant fungal species were investigated. The antimicrobial activity of coral fungal filtrates were investigated against six pathogenic bacteria including Escherichia coli ATCC11775, Neisseria gonorrhoeae ATCC19424, Pseudomonas aeruginosa ATCC10145, Streptococcus faecalis ATCC19433, Staphylococcus aureus subsp. aureus ATCC25923, Bacillus subtilis subsp. spizizenii ATCC6633 and two pathogenic yeast including Candida albicans ATCC7102 and Candida parapsilosis ATCC22019. Most of these fungal filtrates exhibited moderate to high antibacterial activities against both gram positive and gram negative bacteria, however it showed relatively low bioactivity towards the pathogenic Candida species. Investigating the free radical scavenging activity using DPPH reagent showed low to moderate bioactivities. The highest cytotoxic activity against liver cancer cell line Hep-G2 with an IC50 values of 18.8 µg/ml was exhibited by Aspergillus ochraceopetaliformis MN083316 and a metabolomics study was done on the ethyl acetate extract of this strain using LC-ESI-MS fingerprints leading to the isolation and purification of compound 1. Using 1D and 2D NMR techniques compound 1 was identified as ditryptophenaline. Compound 1 exhibited a strong antimicrobial, antioxidant activities as well as cytotoxic activities against MCF-7 and HEPG2 with IC50 values of 5.8 and 7.6 mmole, respectively. The objective of this study, isolation of Coral-reef associated fungi and studying their biological activities to produce the most active secondary metabolite which might possess a novel biological activity.
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Affiliation(s)
| | - Nagwa A Tharwat
- Botany and Microbiology Department, Faculty of Science, Cairo University, Cairo, Egypt
| | | | - Ahmed A El-Beih
- Chemistry of Natural and Microbial Products Department, National Research Center, Giza, Egypt
| | - Ahmed I El-Diwany
- Chemistry of Natural and Microbial Products Department, National Research Center, Giza, Egypt
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31
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Selected Papers from the Third International Symposium on Life Science. Mar Drugs 2020; 18:md18020117. [PMID: 32085392 PMCID: PMC7073962 DOI: 10.3390/md18020117] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2020] [Accepted: 02/11/2020] [Indexed: 11/20/2022] Open
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Abstract
The marine environment encompasses a huge biological diversity and can be considered as an underexplored location for prospecting bioactive molecules. In this review, the current state of art about antimicrobial molecules from marine bacteria has been summarized considering the main phylum and sources evolved in a marine environment. Considering the last two decades, we have found as most studied group of bacteria producers of substances with antimicrobial activity is the Firmicutes phylum, in particular strains of the Bacillus genus. The reason for that can be attributed to the difficult cultivation of typical Actinobacteria from a marine sediment, whose members are the major producers of antimicrobial substances in land environments. However, a reversed trend has been observed in recent years with an increasing number of reports settling on Actinobacteria. Great diversity of chemical structures have been identified, such as fijimicyns and lynamicyns from Actinomycetes and macrolactins produced by Bacillus.
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Affiliation(s)
- Paolo Stincone
- Laboratório de Bioquímica e Microbiologia Aplicada, Departamento de Ciência de Alimentos, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Adriano Brandelli
- Laboratório de Bioquímica e Microbiologia Aplicada, Departamento de Ciência de Alimentos, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
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Zain ul Arifeen M, Ma YN, Xue YR, Liu CH. Deep-Sea Fungi Could Be the New Arsenal for Bioactive Molecules. Mar Drugs 2019; 18:md18010009. [PMID: 31861953 PMCID: PMC7024341 DOI: 10.3390/md18010009] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2019] [Revised: 12/15/2019] [Accepted: 12/15/2019] [Indexed: 12/20/2022] Open
Abstract
Growing microbial resistance to existing drugs and the search for new natural products of pharmaceutical importance have forced researchers to investigate unexplored environments, such as extreme ecosystems. The deep-sea (>1000 m below water surface) has a variety of extreme environments, such as deep-sea sediments, hydrothermal vents, and deep-sea cold region, which are considered to be new arsenals of natural products. Organisms living in the extreme environments of the deep-sea encounter harsh conditions, such as high salinity, extreme pH, absence of sun light, low temperature and oxygen, high hydrostatic pressure, and low availability of growth nutrients. The production of secondary metabolites is one of the strategies these organisms use to survive in such harsh conditions. Fungi growing in such extreme environments produce unique secondary metabolites for defense and communication, some of which also have clinical significance. Despite being the producer of many important bioactive molecules, deep-sea fungi have not been explored thoroughly. Here, we made a brief review of the structure, biological activity, and distribution of secondary metabolites produced by deep-sea fungi in the last five years.
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Characterization of a Halotolerant Fungus from a Marine Sponge. BIOMED RESEARCH INTERNATIONAL 2019; 2019:3456164. [PMID: 31871938 PMCID: PMC6907059 DOI: 10.1155/2019/3456164] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/19/2019] [Revised: 10/15/2019] [Accepted: 10/29/2019] [Indexed: 11/17/2022]
Abstract
Introduction Marine sponges have established symbiotic interactions with a large number of microorganisms including fungi. Most of the studies so far have focussed on the characterization of sponge-associated bacteria and archaea with only a few reports on sponge-associated fungi. During the isolation and characterization of bacteria from marine sponges of South Australia, we observed multiple types of fungi. One isolate in particular was selected for further investigation due to its unusually large size and being chromogenic. Here, we report on the investigations on the physical, morphological, chemical, and genotypic properties of this yeast-like fungus. Methods and Materials Sponge samples were collected from South Australian marine environments, and microbes were isolated using different isolation media under various incubation conditions. Microbial isolates were identified on the basis of morphology, staining characteristics, and their 16S rRNA or ITS/28S rRNA gene sequences. Results Twelve types of yeast and fungal isolates were detected together with other bacteria and one of these fungi measured up to 35 μm in diameter with a unique chromogen compared to other fungi. Depending on the medium type, this unique fungal isolate appeared as yeast-like fungi with different morphological forms. The isolate can ferment and assimilate nearly all of the tested carbohydrates. Furthermore, it tolerated a high concentration of salt (up to 25%) and a range of pH and temperature. ITS and 28S rRNA gene sequencing revealed a sequence similarity of 93% and 98%, respectively, with the closest genera of Eupenidiella, Hortaea, and Stenella. Conclusions On the basis of its peculiar morphology, size, and genetic data, this yeast-like fungus possibly constitutes a new genus and the name Magnuscella marinae, gen nov., sp. nov., is proposed. This study is the first of its kind for the complete characterization of a yeast-like fungus from marine sponges. This novel isolate developed a symbiotic interaction with living hosts, which was not observed with other reported closest genera (they exist in a saprophytic relationship). The observed unique size and morphology may favour this new isolate to establish symbiotic interactions with living hosts.
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35
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Solntsev KM, Schramm S, Kremb S, Gunsalus KC, Amin SA. Isolation of biologically active compounds from mangrove sediments. Anal Bioanal Chem 2019; 411:6521-6529. [DOI: 10.1007/s00216-019-02001-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Marine Microbiome as a Source of Antimalarials. Trop Med Infect Dis 2019; 4:tropicalmed4030103. [PMID: 31337089 PMCID: PMC6789460 DOI: 10.3390/tropicalmed4030103] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2019] [Revised: 07/02/2019] [Accepted: 07/09/2019] [Indexed: 01/21/2023] Open
Abstract
It is important to discover novel antimalarial pharmacophores because of the widespread emergence of Plasmodium falciparum isolates resistant to the available drugs. Secondary metabolites derived from microbes associated with marine invertebrates are a valuable resource for the discovery of novel drug leads. However, the potential of marine microbes as a source of antimalarials has not been explored. We investigated the promise of marine microorganisms for the production of antimalarial activities by testing 2365 diverse microbial extracts using phenotypic screening of a multidrug resistant chloroquine resistant P. falciparum strain. We conducted counter screening against mammalian cells for the 317 active extracts that exhibited more than 70% inhibition at 1 µg/mL. The screen identified 17 potent bioactive leads from a broad range of taxa. Our results establish that the marine microbiome is a rich source of antiplasmodial compounds that warrants in depth exploration.
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Tuttle RN, Demko AM, Patin NV, Kapono CA, Donia MS, Dorrestein P, Jensen PR. Detection of Natural Products and Their Producers in Ocean Sediments. Appl Environ Microbiol 2019; 85:e02830-18. [PMID: 30737349 PMCID: PMC6450032 DOI: 10.1128/aem.02830-18] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2018] [Accepted: 01/30/2019] [Indexed: 11/20/2022] Open
Abstract
Thousands of natural products have been identified from cultured microorganisms, yet evidence of their production in the environment has proven elusive. Technological advances in mass spectrometry, combined with public databases, now make it possible to address this disparity by detecting compounds directly from environmental samples. Here, we used adsorbent resins, tandem mass spectrometry, and next-generation sequencing to assess the metabolome of marine sediments and its relationship to bacterial community structure. We identified natural products previously reported from cultured bacteria, providing evidence they are produced in situ, and compounds of anthropogenic origin, suggesting this approach can be used as an indicator of environmental impact. The bacterial metabolite staurosporine was quantified and shown to reach physiologically relevant concentrations, indicating that it may influence sediment community structure. Staurosporine concentrations were correlated with the relative abundance of the staurosporine-producing bacterial genus Salinispora and production confirmed in strains cultured from the same location, providing a link between compound and candidate producer. Metagenomic analyses revealed numerous biosynthetic gene clusters related to indolocarbazole biosynthesis, providing evidence for noncanonical sources of staurosporine and a path forward to assess the relationships between natural products and the organisms that produce them. Untargeted environmental metabolomics circumvents the need for laboratory cultivation and represents a promising approach to understanding the functional roles of natural products in shaping microbial community structure in marine sediments.IMPORTANCE Natural products are readily isolated from cultured bacteria and exploited for useful purposes, including drug discovery. However, these compounds are rarely detected in the environments from which the bacteria are obtained, thus limiting our understanding of their ecological significance. Here, we used environmental metabolomics to directly assess chemical diversity in marine sediments. We identified numerous metabolites and, in one case, isolated strains of bacteria capable of producing one of the compounds detected. Coupling environmental metabolomics with community and metagenomic analyses provides opportunities to link compounds and producers and begin to assess the complex interactions mediated by specialized metabolites in marine sediments.
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Affiliation(s)
- Robert N Tuttle
- Center for Marine Biotechnology and Biomedicine, Scripps Institution of Oceanography, University of California San Diego, La Jolla, California, USA
| | - Alyssa M Demko
- Center for Marine Biotechnology and Biomedicine, Scripps Institution of Oceanography, University of California San Diego, La Jolla, California, USA
| | - Nastassia V Patin
- Center for Marine Biotechnology and Biomedicine, Scripps Institution of Oceanography, University of California San Diego, La Jolla, California, USA
| | - Clifford A Kapono
- Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California San Diego, La Jolla, California, USA
| | - Mohamed S Donia
- Department of Molecular Biology, Princeton University, Princeton, New Jersey, USA
| | - Pieter Dorrestein
- Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California San Diego, La Jolla, California, USA
- Center for Microbiome Innovation, University of California San Diego, La Jolla, California, USA
| | - Paul R Jensen
- Center for Marine Biotechnology and Biomedicine, Scripps Institution of Oceanography, University of California San Diego, La Jolla, California, USA
- Center for Microbiome Innovation, University of California San Diego, La Jolla, California, USA
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Alcyonium Octocorals: Potential Source of Diverse Bioactive Terpenoids. Molecules 2019; 24:molecules24071370. [PMID: 30965598 PMCID: PMC6479912 DOI: 10.3390/molecules24071370] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2019] [Revised: 04/03/2019] [Accepted: 04/04/2019] [Indexed: 01/13/2023] Open
Abstract
Alcyonium corals are benthic animals, which live in different climatic areas, including temperate, Antarctic and sub-Antarctic waters. They were found to produce different chemical substances with molecular diversity and unique architectures. These metabolites embrace several terpenoidal classes with different functionalities. This wide array of structures supports the productivity of genus Alcyonium. Yet, majority of the reported compounds are still biologically unscreened and require substantial efforts to explore their importance. This review is an entryway to push forward the bio-investigation of this genus. It covers the era from the beginning of reporting metabolites from Alcyonium up to March 2019. Ninety-two metabolites are presented; forty-two sesquiterpenes, twenty-five diterpenes and twenty-five steroids have been reported from sixteen species.
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39
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Secondary Metabolites from Marine Endophytic Fungi: Emphasis on Recent Advances in Natural Product Research. ACTA ACUST UNITED AC 2019. [DOI: 10.1007/978-3-030-03589-1_15] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/18/2023]
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40
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Diversity, Ecology, and Significance of Fungal Endophytes. REFERENCE SERIES IN PHYTOCHEMISTRY 2019. [DOI: 10.1007/978-3-319-90484-9_5] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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Della Sala G, Agriesti F, Mazzoccoli C, Tataranni T, Costantino V, Piccoli C. Clogging the Ubiquitin-Proteasome Machinery with Marine Natural Products: Last Decade Update. Mar Drugs 2018; 16:E467. [PMID: 30486251 PMCID: PMC6316072 DOI: 10.3390/md16120467] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2018] [Revised: 11/11/2018] [Accepted: 11/22/2018] [Indexed: 01/08/2023] Open
Abstract
The ubiquitin-proteasome pathway (UPP) is the central protein degradation system in eukaryotic cells, playing a key role in homeostasis maintenance, through proteolysis of regulatory and misfolded (potentially harmful) proteins. As cancer cells produce proteins inducing cell proliferation and inhibiting cell death pathways, UPP inhibition has been exploited as an anticancer strategy to shift the balance between protein synthesis and degradation towards cell death. Over the last few years, marine invertebrates and microorganisms have shown to be an unexhaustive factory of secondary metabolites targeting the UPP. These chemically intriguing compounds can inspire clinical development of novel antitumor drugs to cope with the incessant outbreak of side effects and resistance mechanisms induced by currently approved proteasome inhibitors (e.g., bortezomib). In this review, we report about (a) the role of the UPP in anticancer therapy, (b) chemical and biological properties of UPP inhibitors from marine sources discovered in the last decade, (c) high-throughput screening techniques for mining natural UPP inhibitors in organic extracts. Moreover, we will tell about the fascinating story of salinosporamide A, the first marine natural product to access clinical trials as a proteasome inhibitor for cancer treatment.
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Affiliation(s)
- Gerardo Della Sala
- Laboratory of Pre-Clinical and Translational Research, IRCCS-CROB, Referral Cancer Center of Basilicata, 85028 Rionero in Vulture, Italy.
| | - Francesca Agriesti
- Laboratory of Pre-Clinical and Translational Research, IRCCS-CROB, Referral Cancer Center of Basilicata, 85028 Rionero in Vulture, Italy.
| | - Carmela Mazzoccoli
- Laboratory of Pre-Clinical and Translational Research, IRCCS-CROB, Referral Cancer Center of Basilicata, 85028 Rionero in Vulture, Italy.
| | - Tiziana Tataranni
- Laboratory of Pre-Clinical and Translational Research, IRCCS-CROB, Referral Cancer Center of Basilicata, 85028 Rionero in Vulture, Italy.
| | - Valeria Costantino
- The NeaNat Group, Department of Pharmacy, University of Naples Federico II, via D. Montesano 49, 80131 Napoli, Italy.
| | - Claudia Piccoli
- Laboratory of Pre-Clinical and Translational Research, IRCCS-CROB, Referral Cancer Center of Basilicata, 85028 Rionero in Vulture, Italy.
- Department of Clinical and Experimental Medicine, University of Foggia, via L. Pinto c/o OO.RR., 71100 Foggia, Italy.
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Bioactive Compounds from Marine-Derived Aspergillus, Penicillium, Talaromyces and Trichoderma Species. Mar Drugs 2018; 16:md16110408. [PMID: 30373096 PMCID: PMC6267100 DOI: 10.3390/md16110408] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2018] [Accepted: 10/24/2018] [Indexed: 12/22/2022] Open
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Calabon MS, Sadaba RB, Campos WL. Fungal diversity of mangrove-associated sponges from New Washington, Aklan, Philippines. Mycology 2018; 10:6-21. [PMID: 30834148 PMCID: PMC6394314 DOI: 10.1080/21501203.2018.1518934] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2018] [Accepted: 08/30/2018] [Indexed: 11/08/2022] Open
Abstract
Sponge-associated fungi are the least explored marine fungal groups. It is only in recent years that fungal symbionts of marine sponges have received attention mainly due to the isolation of bioactive metabolites while not much attention was given to their specificity, biogeography and exact roles in marine sponges. The diversity of fungi associated with mangrove sponges (Axinella sp., Halichondria cf. panicea, Haliclona sp., Tedania sp.) collected from New Washington, Aklan, Philippines were investigated using morphological observation. A total of 110 species of sponge-associated fungi belonging to 22 genera of ascomycetes with 18 genera of asexual morphs whose sexual stage is unknown, 2 genera of basidiomycetes, 21 morphospecies of Mycelia sterilia, 1 unidentified yeast species and 11 unidentified hyphomycetes were isolated from four species of mangrove sponges. This is the first study that explored the diversity and ecology of sponge-associated fungi in mangrove habitats from the Philippines. The results of the study suggest host-preference by various fungal taxa and the development of fungi on these hosts appeared to be strongly influenced by the characteristics or nature of the immediate environment.
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Affiliation(s)
- Mark S Calabon
- National Institute of Molecular Biology and Biotechnology, University of the Philippines Visayas, Miagao, Philippines
| | - Resurreccion B Sadaba
- Division of Biological Sciences, College of Arts and Sciences, University of the Philippines Visayas, Miagao, Iloilo, Philippines
| | - Wilfredo L Campos
- Division of Biological Sciences, College of Arts and Sciences, University of the Philippines Visayas, Miagao, Iloilo, Philippines.,OceanBio and MarineBio Laboratories, Division of Biological Sciences, College of Arts and Sciences, University of the Philippines Visayas, Miagao, Iloilo, Philippines
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Dahiya R, Kumar S, Khokra SL, Gupta SV, Sutariya VB, Bhatia D, Sharma A, Singh S, Maharaj S. Toward the Synthesis and Improved Biopotential of an N-methylated Analog of a Proline-Rich Cyclic Tetrapeptide from Marine Bacteria. Mar Drugs 2018; 16:E305. [PMID: 30200225 PMCID: PMC6163976 DOI: 10.3390/md16090305] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2018] [Revised: 08/24/2018] [Accepted: 08/27/2018] [Indexed: 12/21/2022] Open
Abstract
An N-methylated analog of a marine bacteria-derived natural proline-rich tetracyclopeptide was synthesized by coupling the deprotected dipeptide fragments Boc-l-prolyl-l-N-methylleucine-OH and l-prolyl-l-N-methylphenylalanine-OMe. A coupling reaction was accomplished utilizing N,N'-Dicyclohexylcarbodidimde (DCC) and 1-Ethyl-3-(3-dimethylaminopropyl) carbodiimide (EDC·HCl) as coupling agents and Triethylamine (TEA) or N-methylmorpholine (NMM) as the base in the presence of the racemization suppressing agent. This was followed by the cyclization of the linear tetrapeptide fragment under alkaline conditions. The structure of the synthesized cyclooligopeptide was confirmed using quantitative elemental analysis, FTIR (Fourier-transform infrared spectroscopy), ¹H NMR (Nuclear magnetic resonance spectroscopy), 13C NMR, and mass spectrometry. From the bioactivity results, it was clear that the newly synthesized proline-rich tetracyclopeptide exhibited better anthelmintic potential against Megascoplex konkanensis, Pontoscotex corethruses, and Eudrilus eugeniae at a concentration of 2 mg/mL as well as improved antifungal activity against pathogenic dermatophytes Trichophyton mentagrophytes and Microsporum audouinii at a concentration of 6 μg/mL, as compared to non-methylated tetracyclopeptide. Moreover, N-methylated tetracyclopeptide displayed significant activity against pathogenic Candida albicans.
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Affiliation(s)
- Rajiv Dahiya
- Laboratory of Peptide Research and Development, School of Pharmacy, Faculty of Medical Sciences, The University of the West Indies, Saint Augustine, Trinidad and Tobago.
| | - Suresh Kumar
- Institute of Pharmaceutical Sciences, Kurukshetra University, Kurukshetra 136119, Haryana, India.
| | - Sukhbir Lal Khokra
- Institute of Pharmaceutical Sciences, Kurukshetra University, Kurukshetra 136119, Haryana, India.
| | - Sheeba Varghese Gupta
- Department of Pharmaceutical Sciences, USF College of Pharmacy, University of South Florida, Tampa, FL 33612-4749, USA.
| | - Vijaykumar B Sutariya
- Department of Pharmaceutical Sciences, USF College of Pharmacy, University of South Florida, Tampa, FL 33612-4749, USA.
| | - Deepak Bhatia
- Department of Pharmacogenomics, ICPH Fairfax Bernard J. Dunn School of Pharmacy, Shenandoah University, Fairfax, VA 22031, USA.
| | - Ajay Sharma
- Department of Pharmacognosy, Amity Institute of Pharmacy, Amity University, Gwalior 474020, Madhya Pradesh, India.
| | - Shamjeet Singh
- Laboratory of Peptide Research and Development, School of Pharmacy, Faculty of Medical Sciences, The University of the West Indies, Saint Augustine, Trinidad and Tobago.
| | - Sandeep Maharaj
- Laboratory of Peptide Research and Development, School of Pharmacy, Faculty of Medical Sciences, The University of the West Indies, Saint Augustine, Trinidad and Tobago.
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Kumar A, Sørensen JL, Hansen FT, Arvas M, Syed MF, Hassan L, Benz JP, Record E, Henrissat B, Pöggeler S, Kempken F. Genome Sequencing and analyses of Two Marine Fungi from the North Sea Unraveled a Plethora of Novel Biosynthetic Gene Clusters. Sci Rep 2018; 8:10187. [PMID: 29976990 PMCID: PMC6033941 DOI: 10.1038/s41598-018-28473-z] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2017] [Accepted: 06/21/2018] [Indexed: 01/08/2023] Open
Abstract
Marine Fungi are potent secondary metabolite producers. However, limited genetic information are available their biosynthetic gene clusters (BGCs) and their biotechnological applications. To overcome this lack of information, herein, we used next-generation sequencing methods for genome sequencing of two marine fungi, isolated from the German Wadden Sea, namely Calcarisporium sp. KF525 and Pestalotiopsis sp. KF079. The assembled genome size of the marine isolate Calcarisporium sp. KF525 is about 36.8 Mb with 60 BGCs, while Pestalotiopsis sp. KF079 has a genome size of 47.5 Mb harboring 67 BGCs. Of all BGCs, 98% and 97% are novel clusters of Calcarisporium sp. and Pestalotiopsis sp., respectively. Only few of the BGCs were found to be expressed under laboratory conditions by RNA-seq analysis. The vast majority of all BGCs were found to be novel and unique for these two marine fungi. Along with a description of the identified gene clusters, we furthermore present important genomic features and life-style properties of these two fungi. The two novel fungal genomes provide a plethora of new BGCs, which may have biotechnological applications in the future, for example as novel drugs. The genomic characterizations will provide assistance in future genetics and genomic analyses of marine fungi.
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Affiliation(s)
- Abhishek Kumar
- Department of Genetics & Molecular Biology in Botany, Institute of Botany, Christian-Albrechts-University at Kiel, Kiel, Germany
| | - Jens Laurids Sørensen
- Department of Chemistry and Bioscience, Aalborg University, Niels Bohrs Vej 8, DK-6700, Esbjerg, Denmark
| | - Frederik Teilfeldt Hansen
- Department of Biochemistry, McGill University, Francesco Bellini Life Sciences Building, 3649 Promenade Sir William Osler, Montreal, QC, H3G 0B1, Canada
| | - Mikko Arvas
- VTT Technical Research Centre of Finland Ltd, Tietotie 2, FI-02044, VTT, Espoo, Finland
| | - Muhammad Fahad Syed
- VTT Technical Research Centre of Finland Ltd, Tietotie 2, FI-02044, VTT, Espoo, Finland.,Biocomputing Platforms Ltd, Tekniikantie 14, FI-02150, Espoo, Finland
| | - Lara Hassan
- Holzforschung München, TUM School of Life Sciences Weihenstephan, Technische Universität München, Hans-Carl-von-Carlowitz-Platz 2, Freising, Germany
| | - J Philipp Benz
- Holzforschung München, TUM School of Life Sciences Weihenstephan, Technische Universität München, Hans-Carl-von-Carlowitz-Platz 2, Freising, Germany
| | - Eric Record
- INRA, Aix-Marseille Université, UMR1163, Biodiversité et Biotechnologie Fongiques, Marseille, France.,Centre National de la Recherche Scientifique (CNRS), UMR7257, Université Aix-Marseille, Marseille, 13288, France
| | - Bernard Henrissat
- Centre National de la Recherche Scientifique (CNRS), UMR7257, Université Aix-Marseille, Marseille, 13288, France.,INRA, USC 1408 AFMB, F-13288, Marseille, France.,Department of Biological Sciences, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Stefanie Pöggeler
- Institute of Microbiology and Genetics, Department of Genetics of Eukaryotic Microorganisms, Georg-August University, Göttingen, Germany
| | - Frank Kempken
- Department of Genetics & Molecular Biology in Botany, Institute of Botany, Christian-Albrechts-University at Kiel, Kiel, Germany.
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46
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Giordano D, Costantini M, Coppola D, Lauritano C, Núñez Pons L, Ruocco N, di Prisco G, Ianora A, Verde C. Biotechnological Applications of Bioactive Peptides From Marine Sources. Adv Microb Physiol 2018; 73:171-220. [PMID: 30262109 DOI: 10.1016/bs.ampbs.2018.05.002] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
This review is an overview on marine bioactive peptides with promising activities for the development of alternative drugs to fight human pathologies. In particular, we focus on potentially prolific producers of peptides in microorganisms, including sponge-associated bacteria and marine photoautotrophs such as microalgae and cyanobacteria. Microorganisms are still poorly explored for drug discovery, even if they are highly metabolically plastic and potentially amenable to culturing. This offers the possibility of obtaining a continuous source of bioactive compounds to satisfy the challenging demands of pharmaceutical industries. This review targets peptides because of the variety of potent biological activities demonstrated by these molecules, including antiviral, antimicrobial, antifungal, antioxidant, anticoagulant, antihypertensive, anticancer, antidiabetic, antiobesity, and calcium-binding bioactivities. Several of these peptides have already gained recognition as effective drug agents in recent years. We also focus on cutting-edge omic approaches for the discovery of novel compounds for pharmacological applications. With rapid depletion of natural resources, omic technologies may be the solution to efficiently produce a vast variety of novel peptides with unique pharmacological potential.
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Affiliation(s)
- Daniela Giordano
- Institute of Biosciences and BioResources (IBBR), CNR, Napoli, Italy; Department of Biology and Evolution of Marine Organisms, Stazione Zoologica Anton Dohrn, Napoli, Italy
| | - Maria Costantini
- Institute of Biosciences and BioResources (IBBR), CNR, Napoli, Italy; Department of Biology and Evolution of Marine Organisms, Stazione Zoologica Anton Dohrn, Napoli, Italy
| | - Daniela Coppola
- Institute of Biosciences and BioResources (IBBR), CNR, Napoli, Italy
| | - Chiara Lauritano
- Department of Integrative Marine Ecology, Stazione Zoologica Anton Dohrn, Napoli, Italy
| | - Laura Núñez Pons
- Department of Biology and Evolution of Marine Organisms, Stazione Zoologica Anton Dohrn, Napoli, Italy
| | - Nadia Ruocco
- Department of Biology and Evolution of Marine Organisms, Stazione Zoologica Anton Dohrn, Napoli, Italy; Department of Biology, University of Napoli Federico II, Complesso Universitario di Monte Sant'Angelo, Via Cinthia, Napoli, Italy; Bio-Organic Chemistry Unit, Institute of Biomolecular Chemistry-CNR, Napoli, Italy
| | - Guido di Prisco
- Institute of Biosciences and BioResources (IBBR), CNR, Napoli, Italy
| | - Adrianna Ianora
- Department of Integrative Marine Ecology, Stazione Zoologica Anton Dohrn, Napoli, Italy
| | - Cinzia Verde
- Institute of Biosciences and BioResources (IBBR), CNR, Napoli, Italy; Department of Biology and Evolution of Marine Organisms, Stazione Zoologica Anton Dohrn, Napoli, Italy; Dipartimento di Biologia, Università Roma 3, Roma, Italy.
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47
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Improving oral bioavailability of cyclic peptides by N-methylation. Bioorg Med Chem 2018; 26:2766-2773. [DOI: 10.1016/j.bmc.2017.08.031] [Citation(s) in RCA: 106] [Impact Index Per Article: 17.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2017] [Revised: 08/16/2017] [Accepted: 08/18/2017] [Indexed: 01/19/2023]
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48
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Salmonová H, Killer J, Bunešová V, Geigerová M, Vlková E. Cultivable bacteria from Pectinatella magnifica and the surrounding water in South Bohemia indicate potential new Gammaproteobacterial, Betaproteobacterial and Firmicutes taxa. FEMS Microbiol Lett 2018; 365:4995195. [DOI: 10.1093/femsle/fny118] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2017] [Accepted: 05/09/2018] [Indexed: 12/17/2022] Open
Affiliation(s)
- Hana Salmonová
- Department of Microbiology, Nutrition and Dietetics, Czech University of Life Sciences Prague, Kamýcká 129, Prague 6, Suchdol 165 00, Czech Republic
| | - Jiří Killer
- Department of Microbiology, Nutrition and Dietetics, Czech University of Life Sciences Prague, Kamýcká 129, Prague 6, Suchdol 165 00, Czech Republic
- Institute of Animal Physiology and Genetics v.v.i., Academy of Sciences of the Czech Republic, Vídeňská 1083, Prague 4, Krč, 142 20, Czech Republic
| | - Věra Bunešová
- Department of Microbiology, Nutrition and Dietetics, Czech University of Life Sciences Prague, Kamýcká 129, Prague 6, Suchdol 165 00, Czech Republic
| | - Martina Geigerová
- Department of Microbiology, Nutrition and Dietetics, Czech University of Life Sciences Prague, Kamýcká 129, Prague 6, Suchdol 165 00, Czech Republic
| | - Eva Vlková
- Department of Microbiology, Nutrition and Dietetics, Czech University of Life Sciences Prague, Kamýcká 129, Prague 6, Suchdol 165 00, Czech Republic
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49
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Abstract
Abstract
Fungi including mushrooms have been proved to be an important biosource of numerous metabolites having a huge variety of chemical structures and diverse bioactivities. Metabolites of mushrooms are of remarkable importance as new lead compounds for medicine and agrochemicals. This review presents some of our studies on biologically functional molecules purified from mushroom-forming fungi; (1) endoplasmic reticulum stress suppressor, (2) osteoclast-forming suppressing compounds, (3) plant growth regulators.
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Affiliation(s)
- Jae-Hoon Choi
- College of Agriculture, Academic Institute, Shizuoka University, Shizuoka, Japan
- Research Institute of Green Science and Technology, Shizuoka University, Shizuoka, Japan
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50
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Shin HJ, Choi BK, Trinh PTH, Lee HS, Kang JS, Van TTT, Lee HS, Lee JS, Lee YJ, Lee J. Suppression of RANKL-Induced Osteoclastogenesis by the Metabolites from the Marine Fungus Aspergillus flocculosus Isolated from a Sponge Stylissa sp. Mar Drugs 2018; 16:md16010014. [PMID: 29304006 PMCID: PMC5793062 DOI: 10.3390/md16010014] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2017] [Revised: 11/29/2017] [Accepted: 12/08/2017] [Indexed: 11/16/2022] Open
Abstract
A new α-pyrone merosesquiterpenoid possessing an angular tetracyclic carbon skeleton, ochraceopone F (1), and four known secondary metabolites, aspertetranone D (2), cycloechinulin (3), wasabidienone E (4), and mactanamide (5), were isolated from the marine fungus Aspergillus flocculosus derived from a sponge Stylissa sp. collected in Vietnam. The structures of Compounds 1–5 were elucidated by analysis of 1D and 2D NMR spectra and MS data. All the isolated compounds were evaluated for anti-proliferation activity and their suppression effects on receptor activator of nuclear factor κB ligand (RANKL)-induced osteoclast differentiation using tartate-resisant acid phosphatase (TRAP). Compounds 1–5 had no anti-proliferative effect on human cancer cell lines up to 30 μg/mL. Among these compounds, aspertetranone D (2) and wasabidienone E (4) exhibited weak osteoclast differentiation inhibitory activity at 10 μg/mL. However, mactanamide (5) showed a potent suppression effect of osteoclast differentiation without any evidence of cytotoxicity.
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Affiliation(s)
- Hee Jae Shin
- Marine Natural Products Chemistry Laboratory, Korea Institute of Ocean Science and Technology, 385, Haeyang-ro, Yeongdo-gu, Busan Metropolitan City 49111, Korea.
- Department of Marine Biotechnology, University of Science and Technology, 217 Gajungro Yuseong-gu, Daejeon 34113, Korea.
| | - Byeoung-Kyu Choi
- Marine Natural Products Chemistry Laboratory, Korea Institute of Ocean Science and Technology, 385, Haeyang-ro, Yeongdo-gu, Busan Metropolitan City 49111, Korea.
- Department of Marine Biotechnology, University of Science and Technology, 217 Gajungro Yuseong-gu, Daejeon 34113, Korea.
| | - Phan Thi Hoai Trinh
- Nhatrang Institute of Technology Research and Application, Vietnam Academy of Science and Technology, 02 Hung Vuong, Nha Trang 650000, Vietnam.
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Ha Noi 100000, Vietnam.
| | - Hwa-Sun Lee
- Marine Natural Products Chemistry Laboratory, Korea Institute of Ocean Science and Technology, 385, Haeyang-ro, Yeongdo-gu, Busan Metropolitan City 49111, Korea.
| | - Jong Soon Kang
- Bio-Evaluation Center, Korea Research Institute of Biotechnology, 30 Yeongudanjiro, Cheongju 28116, Korea.
| | - Tran Thi Thanh Van
- Nhatrang Institute of Technology Research and Application, Vietnam Academy of Science and Technology, 02 Hung Vuong, Nha Trang 650000, Vietnam.
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Ha Noi 100000, Vietnam.
| | - Hyi-Seung Lee
- Marine Natural Products Chemistry Laboratory, Korea Institute of Ocean Science and Technology, 385, Haeyang-ro, Yeongdo-gu, Busan Metropolitan City 49111, Korea.
| | - Jong Seok Lee
- Marine Natural Products Chemistry Laboratory, Korea Institute of Ocean Science and Technology, 385, Haeyang-ro, Yeongdo-gu, Busan Metropolitan City 49111, Korea.
| | - Yeon-Ju Lee
- Marine Natural Products Chemistry Laboratory, Korea Institute of Ocean Science and Technology, 385, Haeyang-ro, Yeongdo-gu, Busan Metropolitan City 49111, Korea.
| | - Jihoon Lee
- Marine Natural Products Chemistry Laboratory, Korea Institute of Ocean Science and Technology, 385, Haeyang-ro, Yeongdo-gu, Busan Metropolitan City 49111, Korea.
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