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Maw ZA, Grunwald AL, Haltli BA, Cartmell C, Kerr RG. Discovery of the Lipopeptides Albubactins A-H from Streptomyces albidoflavus RKJM0023 via Chemical Elicitation with Rhamnolipids and Synthesis of Albubactin A. JOURNAL OF NATURAL PRODUCTS 2024. [PMID: 38940698 DOI: 10.1021/acs.jnatprod.3c01234] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/29/2024]
Abstract
The marine tunicate-derived Streptomyces albidoflavus RKJM0023 was cultured in the presence of a rhamnolipid mixture in an effort to elicit the production of silent natural products. MS/MS-based molecular networking analysis enhanced with nonparametric statistics highlighted the upregulation of a molecular cluster (Kruskal-Wallis p = 1.6 e-6 for 1) in which no MS/MS features had library matches. Targeted isolation of these features resulted in the discovery of nine new N-acylated lipopeptides, albubactins A-H (1-8) each containing a unique glutamine tripeptide and a C-terminal ethyl ester moiety. Three related albubactin acids A-C (9-11) lacking the ethyl ester were also identified. NMR spectroscopy and UPLC-HR-ESI-MS/MS demonstrated that the albubactins were obtained as mixtures that shared a common m/z and differed only in their acylated terminal groups. Due to the complex spectroscopic elucidation with many overlapping shifts, a total synthesis of albubactin A (1) was completed and used to determine the absolute configuration of the new albubactins.
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Affiliation(s)
- Zacharie A Maw
- Department of Biomedical Sciences, Atlantic Veterinary College, University of Prince Edward Island, Charlottetown, PEI C1A 4P3, Canada
| | - Alyssa L Grunwald
- Nautilus Biosciences, Croda Canada, Charlottetown, PEI C1A 4P3, Canada
| | - Bradley A Haltli
- Department of Biomedical Sciences, Atlantic Veterinary College, University of Prince Edward Island, Charlottetown, PEI C1A 4P3, Canada
- Nautilus Biosciences, Croda Canada, Charlottetown, PEI C1A 4P3, Canada
| | - Christopher Cartmell
- Department of Pharmacology, College of Medicine; Comprehensive Center for Pain and Addiction, University of Arizona, Tucson, AZ 85724, United States
| | - Russell G Kerr
- Department of Biomedical Sciences, Atlantic Veterinary College, University of Prince Edward Island, Charlottetown, PEI C1A 4P3, Canada
- Department of Chemistry, Faculty of Science, University of Prince Edward Island, Charlottetown, PEI C1A 4P3, Canada
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Dethe DH, Kumar V, Beeralingappa NC. Total synthesis of diplofuranone A and diapolic acid A. Org Biomol Chem 2024; 22:3589-3591. [PMID: 38624151 DOI: 10.1039/d4ob00433g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/17/2024]
Abstract
The first and concise syntheses of the anticancer agent diplofuranone A and the fatty acid-derived metabolite diapolic acid A have been demonstrated using easily accessible and commercially available starting materials. The key feature of these syntheses is the efficient diversification of highly stereo- and chemoselectively constructed (E,E)-1,6-dioxo-2,4-dienes using ruthenium catalytic conditions, which enabled straightforward access to diversely substituted bioactive molecules.
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Affiliation(s)
- Dattatraya H Dethe
- Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur - 208016, India.
| | - Vimlesh Kumar
- Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur - 208016, India.
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Dos Santos JDN, Pinto E, Martín J, Vicente F, Reyes F, Lage OM. Unveiling the bioactive potential of Actinomycetota from the Tagus River estuary. Int Microbiol 2024:10.1007/s10123-024-00483-0. [PMID: 38236380 DOI: 10.1007/s10123-024-00483-0] [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: 11/08/2023] [Revised: 12/28/2023] [Accepted: 01/10/2024] [Indexed: 01/19/2024]
Abstract
The increase in global travel and the incorrect and excessive use of antibiotics has led to an unprecedented rise in antibiotic resistance in bacterial and fungal populations. To overcome these problems, novel bioactive natural products must be discovered, which may be found in underexplored environments, such as estuarine habitats. In the present work, estuarine actinomycetotal strains were isolated with conventional and iChip techniques from the Tagus estuary in Alcochete, Portugal, and analysed for different antimicrobial bioactivities. Extracts were produced from the isolated cultures and tested for bioactivity against Staphylococcus aureus ATCC 29213, Escherichia coli ATCC 25922, Aspergillus fumigatus ATCC 240305, Candida albicans ATCC 10231 and Trichophyton rubrum FF5. Furthermore, bioactive extracts were subjected to dereplication by high-performance liquid chromatography (HPLC) and high-resolution mass spectrometry (HRMS) to putatively identify their chemical components. In total, 105 isolates belonging to 3 genera were obtained. One which was isolated, MTZ3.1 T, represents a described novel taxon for which the name Streptomyces meridianus was proposed. Regarding the bioactivity testing, extracts from 12 strains proved to be active against S. aureus, 2 against E. coli, 4 against A. fumigatus, 3 against C. albicans and 10 against T. rubrum. Dereplication of bioactive extracts showed the presence of 28 known bioactive molecules, 35 hits have one or more possible matches in the DNP and 18 undescribed ones. These results showed that the isolated bacteria might be the source of new bioactive natural products.
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Affiliation(s)
- José Diogo Neves Dos Santos
- Department of Biology, Faculty of Sciences, University of Porto, Rua Do Campo Alegre, S/N, 4169-007, Porto, Portugal.
- Interdisciplinary Centre of Marine and Environmental Research, Terminal de Cruzeiros Do Porto de Leixões, University of Porto, Avenida General Norton de Matos, S/N, 4450-208, Matosinhos, Portugal.
| | - Eugénia Pinto
- Interdisciplinary Centre of Marine and Environmental Research, Terminal de Cruzeiros Do Porto de Leixões, University of Porto, Avenida General Norton de Matos, S/N, 4450-208, Matosinhos, Portugal
- Laboratory of Microbiology, Department of Biological Sciences, Faculty of Pharmacy, University of Porto, Rua Jorge de Viterbo Ferreira 228, 4050-313, Porto, Portugal
| | - Jesús Martín
- Centro de Excelencia en Investigación de Medicamentos Innovadores en Andalucía, Fundación MEDINA, Avenida del Conocimiento, 34 Parque Tecnológico de Ciencias de La Salud, 18016, Granada, Spain
| | - Francisca Vicente
- Centro de Excelencia en Investigación de Medicamentos Innovadores en Andalucía, Fundación MEDINA, Avenida del Conocimiento, 34 Parque Tecnológico de Ciencias de La Salud, 18016, Granada, Spain
| | - Fernando Reyes
- Centro de Excelencia en Investigación de Medicamentos Innovadores en Andalucía, Fundación MEDINA, Avenida del Conocimiento, 34 Parque Tecnológico de Ciencias de La Salud, 18016, Granada, Spain
| | - Olga Maria Lage
- Department of Biology, Faculty of Sciences, University of Porto, Rua Do Campo Alegre, S/N, 4169-007, Porto, Portugal
- Interdisciplinary Centre of Marine and Environmental Research, Terminal de Cruzeiros Do Porto de Leixões, University of Porto, Avenida General Norton de Matos, S/N, 4450-208, Matosinhos, Portugal
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Priya PS, Boopathi S, Murugan R, Haridevamuthu B, Arshad A, Arockiaraj J. Quorum sensing signals: Aquaculture risk factor. REVIEWS IN AQUACULTURE 2023; 15:1294-1310. [DOI: 10.1111/raq.12774] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Accepted: 11/28/2022] [Indexed: 10/16/2023]
Abstract
AbstractBacteria produce several virulence factors and cause massive mortality in fish and crustaceans. Abundant quorum sensing (QS) signals and high cell density are essentially required for the production of such virulence factors. Although several strategies have been developed to control aquatic pathogens through antibiotics and QS inhibition, the impact of pre‐existing QS signals in the aquatic environment has been overlooked. QS signals cause detrimental effects on mammalian cells and induce cell death by interfering with multiple cellular pathways. Moreover, QS signals not only function as a messenger, but also annihilate the functions of the host immune system which implies that QS signals should be designated as a major virulence factor. Despite QS signals' role has been well documented in mammalian cells, their impact on aquatic organisms is still at the budding stage. However, many aquatic organisms produce enzymes that degrade and detoxify such QS signals. In addition, physical and chemical factors also determine the stability of the QS signals in the aqueous environment. The balance between QS signals and existing QS signals degrading factors essentially determines the disease progression in aquatic organisms. In this review, we highlight the impact of QS signals on aquatic organisms and further discussed potential alternative strategies to control disease progression.
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Affiliation(s)
- P. Snega Priya
- Department of Biotechnology, College of Science and Humanities SRM Institute of Science and Technology Chennai India
| | - Seenivasan Boopathi
- Department of Biotechnology, College of Science and Humanities SRM Institute of Science and Technology Chennai India
| | - Raghul Murugan
- Department of Biotechnology, College of Science and Humanities SRM Institute of Science and Technology Chennai India
| | - B. Haridevamuthu
- Department of Biotechnology, College of Science and Humanities SRM Institute of Science and Technology Chennai India
| | - Aziz Arshad
- International Institute of Aquaculture and Aquatic Sciences (I‐AQUAS) Universiti Putra Malaysia Negeri Sembilan Malaysia
| | - Jesu Arockiaraj
- Department of Biotechnology, College of Science and Humanities SRM Institute of Science and Technology Chennai India
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Giaccio P, Charou D, Diakaki DI, Chita A, Gravanis A, Charalampopoulos I, Roussis V, Ioannou E. Butanolides and Butenolides from a Marine-Derived Streptomyces sp. Exert Neuroprotective Activity through Activation of the TrkB Neurotrophin Receptor. Mar Drugs 2023; 21:465. [PMID: 37755078 PMCID: PMC10532803 DOI: 10.3390/md21090465] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2023] [Revised: 08/21/2023] [Accepted: 08/22/2023] [Indexed: 09/28/2023] Open
Abstract
Neurodegenerative diseases are incurable and debilitating conditions, characterized by progressive loss and degeneration of vulnerable neuronal populations. Currently, there are no effective therapies available for the treatment of most neurodegenerative disorders. A panel of extracts exhibiting interesting chemical profiles among a high number of bacterial strains isolated from East Mediterranean marine sediments and macroorganisms were evaluated for their activity on TrkB-expressing cells. Among them, the actinobacterial strain Streptomyces sp. BI0788, exhibiting neuroprotective activity in vitro, was selected and cultivated in large-scale. The chemical analysis of its organic extract resulted in the isolation of four new butanolides (1, 4-6), along with two previously reported butanolides (2 and 3) and eight previously reported butenolides (7-14). Compounds 2-4 and 7-14 were evaluated for their neuroprotective effects on TrkB-expressing NIH-3T3 cells. Among them, metabolites 3, 4, 7, 10, 11, 13 and 14 exhibited significant protective activity on the aforementioned cells through the activation of TrkB, the high-affinity receptor for the Brain-Derived Neurotrophic Factor (BDNF), which is well known to play a crucial role in neuronal cell survival and maintenance.
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Affiliation(s)
- Paolo Giaccio
- Section of Pharmacognosy and Chemistry of Natural Products, Department of Pharmacy, National and Kapodistrian University of Athens, Panepistimiopolis Zografou, 15771 Athens, Greece; (P.G.); (D.-I.D.); (V.R.)
| | - Despoina Charou
- Department of Pharmacology, Medical School, University of Crete, 71003 Heraklion, Greece; (D.C.); (A.C.); (A.G.); (I.C.)
- Institute of Molecular Biology & Biotechnology, Foundation for Research & Technology-Hellas (IMBB-FORTH), 70013 Heraklion, Greece
| | - Dafni-Ioanna Diakaki
- Section of Pharmacognosy and Chemistry of Natural Products, Department of Pharmacy, National and Kapodistrian University of Athens, Panepistimiopolis Zografou, 15771 Athens, Greece; (P.G.); (D.-I.D.); (V.R.)
| | - Anna Chita
- Department of Pharmacology, Medical School, University of Crete, 71003 Heraklion, Greece; (D.C.); (A.C.); (A.G.); (I.C.)
- Institute of Molecular Biology & Biotechnology, Foundation for Research & Technology-Hellas (IMBB-FORTH), 70013 Heraklion, Greece
| | - Achille Gravanis
- Department of Pharmacology, Medical School, University of Crete, 71003 Heraklion, Greece; (D.C.); (A.C.); (A.G.); (I.C.)
- Institute of Molecular Biology & Biotechnology, Foundation for Research & Technology-Hellas (IMBB-FORTH), 70013 Heraklion, Greece
| | - Ioannis Charalampopoulos
- Department of Pharmacology, Medical School, University of Crete, 71003 Heraklion, Greece; (D.C.); (A.C.); (A.G.); (I.C.)
- Institute of Molecular Biology & Biotechnology, Foundation for Research & Technology-Hellas (IMBB-FORTH), 70013 Heraklion, Greece
| | - Vassilios Roussis
- Section of Pharmacognosy and Chemistry of Natural Products, Department of Pharmacy, National and Kapodistrian University of Athens, Panepistimiopolis Zografou, 15771 Athens, Greece; (P.G.); (D.-I.D.); (V.R.)
| | - Efstathia Ioannou
- Section of Pharmacognosy and Chemistry of Natural Products, Department of Pharmacy, National and Kapodistrian University of Athens, Panepistimiopolis Zografou, 15771 Athens, Greece; (P.G.); (D.-I.D.); (V.R.)
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Sahreen S, Mukhtar H, Imre K, Morar A, Herman V, Sharif S. Exploring the Function of Quorum Sensing Regulated Biofilms in Biological Wastewater Treatment: A Review. Int J Mol Sci 2022; 23:ijms23179751. [PMID: 36077148 PMCID: PMC9456111 DOI: 10.3390/ijms23179751] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2022] [Revised: 08/21/2022] [Accepted: 08/26/2022] [Indexed: 11/26/2022] Open
Abstract
Quorum sensing (QS), a type of bacterial cell–cell communication, produces autoinducers which help in biofilm formation in response to cell population density. In this review, biofilm formation, the role of QS in biofilm formation and development with reference to biological wastewater treatment are discussed. Autoinducers, for example, acyl-homoserine lactones (AHLs), auto-inducing oligo-peptides (AIPs) and autoinducer 2, present in both Gram-negative and Gram-positive bacteria, with their mechanism, are also explained. Over the years, wastewater treatment (WWT) by QS-regulated biofilms and their optimization for WWT have gained much attention. This article gives a comprehensive review of QS regulation methods, QS enrichment methods and QS inhibition methods in biological waste treatment systems. Typical QS enrichment methods comprise adding QS molecules, adding QS accelerants and cultivating QS bacteria, while typical QS inhibition methods consist of additions of quorum quenching (QQ) bacteria, QS-degrading enzymes, QS-degrading oxidants, and QS inhibitors. Potential applications of QS regulated biofilms for WWT have also been summarized. At last, the knowledge gaps present in current researches are analyzed, and future study requirements are proposed.
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Affiliation(s)
- Sania Sahreen
- Institute of Industrial Biotechnology, Government College University, Lahore 54000, Pakistan
| | - Hamid Mukhtar
- Institute of Industrial Biotechnology, Government College University, Lahore 54000, Pakistan
- Correspondence: (H.M.); (K.I.); Tel.: +92-3334245581 (H.M.); +40-256277186 (K.I.)
| | - Kálmán Imre
- Department of Animal Production and Veterinary Public Health, Faculty of Veterinary Medicine, Banat’s University of Agricultural Sciences and Veterinary Medicine “King Michael I of Romania”, 300645 Timisoara, Romania
- Correspondence: (H.M.); (K.I.); Tel.: +92-3334245581 (H.M.); +40-256277186 (K.I.)
| | - Adriana Morar
- Department of Animal Production and Veterinary Public Health, Faculty of Veterinary Medicine, Banat’s University of Agricultural Sciences and Veterinary Medicine “King Michael I of Romania”, 300645 Timisoara, Romania
| | - Viorel Herman
- Department of Infectious Diseases and Preventive Medicine, Faculty of Veterinary Medicine, Banat’s University of Agricultural Sciences and Veterinary Medicine “King Michael I of Romania”, 300645 Timisoara, Romania
| | - Sundas Sharif
- Institute of Industrial Biotechnology, Government College University, Lahore 54000, Pakistan
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dos Santos JDN, João SA, Martín J, Vicente F, Reyes F, Lage OM. iChip-Inspired Isolation, Bioactivities and Dereplication of Actinomycetota from Portuguese Beach Sediments. Microorganisms 2022; 10:microorganisms10071471. [PMID: 35889190 PMCID: PMC9319460 DOI: 10.3390/microorganisms10071471] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Revised: 07/13/2022] [Accepted: 07/19/2022] [Indexed: 02/01/2023] Open
Abstract
Oceans hold a stunning number of unique microorganisms, which remain unstudied by culture-dependent methods due to failures in establishing the right conditions for these organisms to grow. In this work, an isolation effort inspired by the iChip was performed using marine sediments from Memoria beach, Portugal. The isolates obtained were identified by 16S rRNA gene analysis, fingerprinted using BOX-PCR and ERIC-PCR, searched for the putative presence of secondary metabolism genes associated with polyketide synthase I (PKS-I) and non-ribosomal peptide synthetases (NRPS), screened for antimicrobial activity against Escherichia coli ATCC 25922 and Staphylococcus aureus ATCC 29213, and had bioactive extracts dereplicated by LC/HRMS. Of the 158 isolated strains, 96 were affiliated with the phylum Actinomycetota, PKS-I and NRPS genes were detected in 53 actinomycetotal strains, and 11 proved to be bioactive (10 against E. coli, 1 against S. aureus and 1 against both pathogens). Further bioactivities were explored using an “one strain many compounds” approach, with six strains showing continued bioactivity and one showing a novel one. Extract dereplication showed the presence of several known bioactive molecules and potential novel ones in the bioactive extracts. These results indicate the use of the bacteria isolated here as sources of new bioactive natural products.
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Affiliation(s)
- José Diogo Neves dos Santos
- Department of Biology, Faculty of Sciences, University of Porto, Rua do Campo Alegre S/N, 4169-007 Porto, Portugal; (S.A.J.); (O.M.L.)
- Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Terminal de Cruzeiros do Porto de Leixões, Avenida General Norton de Matos, S/N, 4450-208 Matosinhos, Portugal
- Correspondence: ; Tel.: +351-910903938
| | - Susana Afonso João
- Department of Biology, Faculty of Sciences, University of Porto, Rua do Campo Alegre S/N, 4169-007 Porto, Portugal; (S.A.J.); (O.M.L.)
- Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Terminal de Cruzeiros do Porto de Leixões, Avenida General Norton de Matos, S/N, 4450-208 Matosinhos, Portugal
| | - Jesús Martín
- Fundación MEDINA, Centro de Excelencia en Investigación de Medicamentos Innovadores en Andalucía, Avenida del Conocimiento, 34 Parque Tecnológico de Ciencias de la Salud, 18016 Granada, Spain; (J.M.); (F.V.); (F.R.)
| | - Francisca Vicente
- Fundación MEDINA, Centro de Excelencia en Investigación de Medicamentos Innovadores en Andalucía, Avenida del Conocimiento, 34 Parque Tecnológico de Ciencias de la Salud, 18016 Granada, Spain; (J.M.); (F.V.); (F.R.)
| | - Fernando Reyes
- Fundación MEDINA, Centro de Excelencia en Investigación de Medicamentos Innovadores en Andalucía, Avenida del Conocimiento, 34 Parque Tecnológico de Ciencias de la Salud, 18016 Granada, Spain; (J.M.); (F.V.); (F.R.)
| | - Olga Maria Lage
- Department of Biology, Faculty of Sciences, University of Porto, Rua do Campo Alegre S/N, 4169-007 Porto, Portugal; (S.A.J.); (O.M.L.)
- Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Terminal de Cruzeiros do Porto de Leixões, Avenida General Norton de Matos, S/N, 4450-208 Matosinhos, Portugal
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Anti-Inflammatory Butenolides from a Marine-Derived Streptomyces sp. 13G036. APPLIED SCIENCES-BASEL 2022. [DOI: 10.3390/app12094510] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Butenolides are a family of lactones containing a double bond and have been frequently found in the extracts of Streptomyces bacterial species with various pharmacological activities. In this study, seven butenolides (1–7) were discovered and isolated from the culture broth of a marine-derived Streptomyces sp. 13G036 based on a molecular networking analysis. Among the seven isolates, compound 7 was first isolated as a natural product in this study. The structures of compounds 1–7 were determined by combined analysis of 1D/2D Nuclear Magnetic Resonance (NMR) spectra, Mass Spectrometry (MS) spectra and electronic circular dichroism (ECD) data. Compounds 1–6 showed potential anti-inflammatory activities by inhibiting the production of nitric oxide (NO), tumor necrosis factor-α (TNF-α) and interleukine-6 (IL-6) in lipopolysaccharide-stimulated macrophages.
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Osama N, Bakeer W, Raslan M, Soliman HA, Abdelmohsen UR, Sebak M. Anti-cancer and antimicrobial potential of five soil Streptomycetes: a metabolomics-based study. ROYAL SOCIETY OPEN SCIENCE 2022; 9:211509. [PMID: 35154794 PMCID: PMC8825997 DOI: 10.1098/rsos.211509] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/17/2021] [Accepted: 01/14/2022] [Indexed: 05/03/2023]
Abstract
Lack of new anti-cancer and anti-infective agents directed the pharmaceutical research to natural products' discovery especially from actinomycetes as one of the major sources of bioactive compounds. Metabolomics- and dereplication-guided approach has been used successfully in chemical profiling of bioactive actinomycetes. We aimed to study the metabolomic profile of five bioactive actinomycetes to investigate the interesting metabolites responsible for their antimicrobial and anti-cancer activities. Three actinomycetes, namely, Streptomyces sp. SH8, SH10 and SH13, were found to exhibit broad spectrum of antimicrobial activities, whereas isolate SH4 showed the broadest antimicrobial activity against all tested strains. In addition, isolates SH8, SH10 and SH12 displayed potent cytotoxicity against the breast cancer cell line Michigan Cancer Foundation-7 (MCF-7), whereas isolates SH4 and SH12 exhibited potent anti-cancer activity against the hepatoma cell line hepatoma G2 (HepG2) compared with their weak inhibitory properties on the normal breast cells MCF-10A and normal liver cells transformed human liver epithelial-2 (THLE2), respectively. All bioactive isolates were molecularly identified as Streptomyces sp. via 16S rRNA gene sequencing. Our actinobacterial dereplication analysis revealed putative identification of several bioactive metabolites including tetracycline, oxytetracycline and a macrolide antibiotic, novamethymycin. Together, chemical profiling of bioactive Streptomycetes via dereplication and metabolomics helped in assigning their unique metabolites and predicting the bioactive compounds instigating their diverse bioactivities.
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Affiliation(s)
- Nada Osama
- Biotechnology and Life Sciences Department, Faculty of Postgraduate Studies for Advanced Sciences, Beni-Suef University, Beni-Suef, 62511, Egypt
| | - Walid Bakeer
- Microbiology and Immunology Department, Faculty of Pharmacy, Beni-Suef University, Beni-Suef, 62511, Egypt
| | - Mai Raslan
- Biotechnology and Life Sciences Department, Faculty of Postgraduate Studies for Advanced Sciences, Beni-Suef University, Beni-Suef, 62511, Egypt
| | - Hanan A. Soliman
- Biochemistry Division, Chemistry Department, Faculty of Science, Beni-Suef University, Beni-Suef 62511, Egypt
| | - Usama Ramadan Abdelmohsen
- Department of Pharmacognosy, Faculty of Pharmacy, Minia University, Minia 61519, Egypt
- Department of Pharmacognosy, Faculty of Pharmacy, Deraya University, New Minia 61111, Egypt
| | - Mohamed Sebak
- Microbiology and Immunology Department, Faculty of Pharmacy, Beni-Suef University, Beni-Suef, 62511, Egypt
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Misaki Y, Takahashi Y, Hara K, Tatsuno S, Arakawa K. Three 4-monosubstituted butyrolactones from a regulatory gene mutant of Streptomyces rochei 7434AN4. J Biosci Bioeng 2022; 133:329-334. [DOI: 10.1016/j.jbiosc.2022.01.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Revised: 01/10/2022] [Accepted: 01/12/2022] [Indexed: 10/19/2022]
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11
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Wang Q, Wang Y, Wang YJ, Ma N, Zhou YJ, Zhuang H, Zhang XH, Li C, Pei YH, Liu SL. Dissection of the Functional Mechanism of Human Gut Bacterial Strain AD16 by Secondary Metabolites' Identification, Network Pharmacology, and Experimental Validation. Front Pharmacol 2021; 12:706220. [PMID: 34803669 PMCID: PMC8602878 DOI: 10.3389/fphar.2021.706220] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2021] [Accepted: 09/29/2021] [Indexed: 11/13/2022] Open
Abstract
Gut microbiota plays important roles in several metabolic processes, such as appetite and food intake and absorption of nutrients from the gut. It is also of great importance in the maintenance of the health of the host. However, much remains unknown about the functional mechanisms of human gut microbiota itself. Here, we report the identification of one anticancer gut bacterial strain AD16, which exhibited potent suppressive effects on a broad range of solid and blood malignancies. The secondary metabolites of the strain were isolated and characterized by a bioactivity-guided isolation strategy. Five new compounds, streptonaphthalenes A and B (1-2), pestaloficins F and G (3-4), and eudesmanetetraiol A (5), together with nine previously known compounds, were isolated from the effective fractions of AD16. Structures of the new compounds were established by 1D and 2D NMR and MS analysis, and the absolute configurations were determined by the CD method. The analysis of network pharmacology suggested that 3, 2, and 13 could be the key components for the anti-NSCLC activity of AD16. In addition to the PI3K–Akt signaling pathway, the proteoglycans in cancer pathway could be involved in the anti-NSCLC action of AD16.
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Affiliation(s)
- Qin Wang
- Department of Medicinal Chemistry and Natural Medicine Chemistry, College of Pharmacy, Harbin Medical University, Harbin, China
| | - Yao Wang
- Genomics Research Center (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China), College of Pharmacy, Harbin Medical University, Harbin, China
| | - Ya-Jing Wang
- Department of Medicinal Chemistry and Natural Medicine Chemistry, College of Pharmacy, Harbin Medical University, Harbin, China
| | - Nan Ma
- Department of Medicinal Chemistry and Natural Medicine Chemistry, College of Pharmacy, Harbin Medical University, Harbin, China
| | - Yu-Jie Zhou
- Genomics Research Center (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China), College of Pharmacy, Harbin Medical University, Harbin, China
| | - He Zhuang
- Genomics Research Center (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China), College of Pharmacy, Harbin Medical University, Harbin, China
| | - Xing-Hua Zhang
- Genomics Research Center (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China), College of Pharmacy, Harbin Medical University, Harbin, China
| | - Chang Li
- Department of Medicinal Chemistry and Natural Medicine Chemistry, College of Pharmacy, Harbin Medical University, Harbin, China
| | - Yue-Hu Pei
- Department of Medicinal Chemistry and Natural Medicine Chemistry, College of Pharmacy, Harbin Medical University, Harbin, China
| | - Shu-Lin Liu
- Genomics Research Center (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China), College of Pharmacy, Harbin Medical University, Harbin, China.,Department of Microbiology, Immunology and Infectious Diseases, University of Calgary, Calgary, AB, Canada
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Gliszczyńska A, Dancewicz K, Gabryś B, Świtalska M, Wietrzyk J, Maciejewska G. Synthesis of novel phytol-derived γ-butyrolactones and evaluation of their biological activity. Sci Rep 2021; 11:4262. [PMID: 33608591 PMCID: PMC7896091 DOI: 10.1038/s41598-021-83736-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2020] [Accepted: 02/08/2021] [Indexed: 11/13/2022] Open
Abstract
The synthesis of phytol-derived γ-butyrolactones as well as their evaluation for deterrent activity towards peach-potato aphid Myzus persicae and antiproliferative activity against four selected cancer cell lines are reported. Products were obtained in good yields (19-96%) and their structures were fully characterized by spectroscopic data (NMR, HRMS). Four synthesized δ-halo-γ-lactones (4-7) are new and have not been previously described in the literature. In the choice test phytol (1) appeared deterrent to M. persicae, whereas modifications of its structure did not cause the avoidance of the treated leaves by the aphids. In contrast, aphids were attracted to the leaves treated with the new trans-δ-chloro-γ-lactone (6). Electrical Penetration Graph (EPG) technique applied to explore the aphid probing and feeding activity revealed that neither phytol nor lactone 6 affected aphid probing and the consumption of phloem sap, which means that both phytol and the lactone 6 might have acted as postingestive modifiers of aphid behavior. The results of in vitro antitumor assays showed that obtained phytol derivatives exhibit cytotoxic activity against studied cancer cell lines (leukemia, lung and colon carcinoma and its doxorubicin resistant subline). Halolactones 4-6 were identified as the compounds, which arrest cell cycle of leukemia cells mainly in G2/M and S phases.
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Affiliation(s)
- Anna Gliszczyńska
- Department of Chemistry, Wroclaw University of Environmental and Life Sciences, Norwida 25, 50-375, Wrocław, Poland.
| | - Katarzyna Dancewicz
- Department of Botany and Ecology, University of Zielona Góra, Szafrana 1, 65-516, Zielona Góra, Poland
| | - Beata Gabryś
- Department of Botany and Ecology, University of Zielona Góra, Szafrana 1, 65-516, Zielona Góra, Poland
| | - Marta Świtalska
- Department of Experimental Oncology, Ludwik Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Science, Weigla 12, 53-114, Wrocław, Poland
| | - Joanna Wietrzyk
- Department of Experimental Oncology, Ludwik Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Science, Weigla 12, 53-114, Wrocław, Poland
| | - Gabriela Maciejewska
- Central Laboratory of Instrumental Analysis, Wrocław University of Science and Technology, Wybrzeże Wyspiańskiego 27, 50-370, Wrocław, Poland
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13
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Zou ZB, Zhang G, Li SM, He ZH, Yan QX, Lin YK, Xie CL, Xia JM, Luo ZH, Luo LZ, Yang XW. Asperochratides A-J, Ten new polyketides from the deep-sea-derived Aspergillus ochraceus. Bioorg Chem 2020; 105:104349. [PMID: 33074115 DOI: 10.1016/j.bioorg.2020.104349] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2020] [Revised: 08/30/2020] [Accepted: 10/04/2020] [Indexed: 01/24/2023]
Abstract
Ten new C9 polyketides (asperochratides A-J, 1-10) and 14 known miscellaneous compounds (11-24) were isolated from the deep-sea-derived fungus Aspergillus ochraceus. Structures of the new compounds were elucidated by extensive spectroscopic analyses, modified Mosher's method, Mo2(OAc)4 induced circular dichroism (ICD) experiments, and ECD calculations. Structurally, compounds 1-11 and 16-18 share the same polyketide origin of the skeleton and belong to aspyrone co-metabolites. All isolates were tested for cytotoxic, anti-food allergic, anti-H1N1 virus, anti-microbe, and anti-inflammatory activities in vitro. Results showed that compounds 5-8 and 13-17 exerted significant cytotoxic effects on BV-2 cell line, and compound 16 showed the potential of anti-inflammatory activities.
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Affiliation(s)
- Zheng-Biao Zou
- Key Laboratory of Marine Biogenetic Resources, Third Institute of Oceanography, Ministry of Natural Resources, 184 Daxue Road, Xiamen 361005, China
| | - Gang Zhang
- Fujian Province Universities and Colleges Engineering Research Center for Marine Biomedical Resource Utilization, Xiamen Medical College, 1999 Guankouzhong Road, Xiamen 361023, China
| | - Su-Mei Li
- Department of Pharmacology, Shenzhen People's Hospital (The Second Clinical Medical College, Jinan University, The First Affiliated Hospital, Southern University of Science and Technology), Shenzhen 518020, China
| | - Zhi-Hui He
- Key Laboratory of Marine Biogenetic Resources, Third Institute of Oceanography, Ministry of Natural Resources, 184 Daxue Road, Xiamen 361005, China
| | - Qing-Xiang Yan
- Key Laboratory of Marine Biogenetic Resources, Third Institute of Oceanography, Ministry of Natural Resources, 184 Daxue Road, Xiamen 361005, China
| | - Yu-Kun Lin
- Key Laboratory of Marine Biogenetic Resources, Third Institute of Oceanography, Ministry of Natural Resources, 184 Daxue Road, Xiamen 361005, China
| | - Chun-Lan Xie
- Key Laboratory of Marine Biogenetic Resources, Third Institute of Oceanography, Ministry of Natural Resources, 184 Daxue Road, Xiamen 361005, China
| | - Jin-Mei Xia
- Key Laboratory of Marine Biogenetic Resources, Third Institute of Oceanography, Ministry of Natural Resources, 184 Daxue Road, Xiamen 361005, China
| | - Zhu-Hua Luo
- Key Laboratory of Marine Biogenetic Resources, Third Institute of Oceanography, Ministry of Natural Resources, 184 Daxue Road, Xiamen 361005, China
| | - Lian-Zhong Luo
- Fujian Province Universities and Colleges Engineering Research Center for Marine Biomedical Resource Utilization, Xiamen Medical College, 1999 Guankouzhong Road, Xiamen 361023, China.
| | - Xian-Wen Yang
- Key Laboratory of Marine Biogenetic Resources, Third Institute of Oceanography, Ministry of Natural Resources, 184 Daxue Road, Xiamen 361005, China.
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14
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Kong D, Wang X, Nie J, Niu G. Regulation of Antibiotic Production by Signaling Molecules in Streptomyces. Front Microbiol 2019; 10:2927. [PMID: 31921086 PMCID: PMC6930871 DOI: 10.3389/fmicb.2019.02927] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2019] [Accepted: 12/05/2019] [Indexed: 11/22/2022] Open
Abstract
The genus Streptomyces is a unique subgroup of actinomycetes bacteria that are well-known as prolific producers of antibiotics and many other bioactive secondary metabolites. Various environmental and physiological signals affect the onset and level of production of each antibiotic. Here we highlight recent findings on the regulation of antibiotic biosynthesis in Streptomyces by signaling molecules, with special focus on autoregulators such as hormone-like signaling molecules and antibiotics themselves. Hormone-like signaling molecules are a group of small diffusible signaling molecules that interact with specific receptor proteins to initiate complex regulatory cascades of antibiotic biosynthesis. Antibiotics and their biosynthetic intermediates can also serve as autoregulators to fine-tune their own biosynthesis or cross-regulators of disparate biosynthetic pathways. Advances in understanding of signaling molecules-mediated regulation of antibiotic production in Streptomyces may aid the discovery of new signaling molecules and their use in eliciting silent antibiotic biosynthetic pathways in a wide range of actinomycetes.
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Affiliation(s)
- Dekun Kong
- Biotechnology Research Center, Southwest University, Chongqing, China.,State Cultivation Base of Crop Stress Biology for Southern Mountainous Land, Academy of Agricultural Sciences, Southwest University, Chongqing, China
| | - Xia Wang
- Biotechnology Research Center, Southwest University, Chongqing, China.,State Cultivation Base of Crop Stress Biology for Southern Mountainous Land, Academy of Agricultural Sciences, Southwest University, Chongqing, China
| | - Ju Nie
- Biotechnology Research Center, Southwest University, Chongqing, China.,College of Horticulture and Landscape Architecture, Southwest University, Chongqing, China
| | - Guoqing Niu
- Biotechnology Research Center, Southwest University, Chongqing, China.,State Cultivation Base of Crop Stress Biology for Southern Mountainous Land, Academy of Agricultural Sciences, Southwest University, Chongqing, China
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Huang H, Song Y, Zang R, Wang X, Ju J. Octyl substituted butenolides from marine-derived Streptomyces koyangensis. Nat Prod Res 2019; 35:2602-2607. [PMID: 31691580 DOI: 10.1080/14786419.2019.1686368] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
A new butenolide derivative (1) featuring octyl substitution at γ-position, together with four known analogues (2-5) were isolated from marine-derived Streptomyces koyangensis SCSIO 5802. The structure of 1 was elucidated by HR-MS and NMR spectroscopic data analyses. The absolute configuration of the stereo centre in lactone ring of 1 was determined by comparison of CD spectrum with those of known compounds. Compound 1 exhibited mild antiviral activity against herpes simplex virus with EC50 value of 25.4 µM.
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Affiliation(s)
- Hongbo Huang
- CAS Key Laboratory of Tropical Marine Bio-Resources and Ecology, Guangdong Key Laboratory of Marine Materia Medica, RNAM Center for Marine Microbiology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, China.,School of Oceanology, University of Chinese Academy of Sciences, Beijing, China
| | - Yongxiang Song
- CAS Key Laboratory of Tropical Marine Bio-Resources and Ecology, Guangdong Key Laboratory of Marine Materia Medica, RNAM Center for Marine Microbiology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, China.,School of Oceanology, University of Chinese Academy of Sciences, Beijing, China
| | - Ruochen Zang
- Innovative Marine Drug Screening and Evaluation Center, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China
| | - Xin Wang
- Innovative Marine Drug Screening and Evaluation Center, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China
| | - Jianhua Ju
- CAS Key Laboratory of Tropical Marine Bio-Resources and Ecology, Guangdong Key Laboratory of Marine Materia Medica, RNAM Center for Marine Microbiology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, China.,School of Oceanology, University of Chinese Academy of Sciences, Beijing, China
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16
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Quorum Sensing Inhibition by Marine Bacteria. Mar Drugs 2019; 17:md17070427. [PMID: 31340463 PMCID: PMC6669520 DOI: 10.3390/md17070427] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2019] [Revised: 07/18/2019] [Accepted: 07/19/2019] [Indexed: 01/05/2023] Open
Abstract
Antibiotic resistance has been increasingly reported for a wide variety of bacteria of clinical significance. This widespread problem constitutes one of the greatest challenges of the twenty-first century. Faced with this issue, clinicians and researchers have been persuaded to design novel strategies in order to try to control pathogenic bacteria. Therefore, the discovery and elucidation of the mechanisms underlying bacterial pathogenesis and intercellular communication have opened new perspectives for the development of alternative approaches. Antipathogenic and/or antivirulence therapies based on the interruption of quorum sensing pathways are one of several such promising strategies aimed at disarming rather than at eradicating bacterial pathogens during the course of colonization and infection. This review describes mechanisms of bacterial communication involved in biofilm formation. An overview of the potential of marine bacteria and their bioactive components as QS inhibitors is further provided.
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17
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Anti-Influenza A Viral Butenolide from Streptomyces sp. Smu03 Inhabiting the Intestine of Elephas maximus. Viruses 2018; 10:v10070356. [PMID: 29976861 PMCID: PMC6070878 DOI: 10.3390/v10070356] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2018] [Revised: 06/25/2018] [Accepted: 06/26/2018] [Indexed: 12/25/2022] Open
Abstract
Actinobacteria are a phylum of bacteria known for their potential in producing structurally diversified natural products that are always associated with a broad range of biological activities. In this paper, using an H5N1 pseudo-typed virus drug screening system combined with a bioassay guided purification approach, an antiviral butanolide (1) was identified from the culture broth of Streptomyces sp. SMU03, a bacterium isolated from the feces of Elephas maximus in Yunnan province, China. This compound displayed broad and potent activity against a panel of influenza viruses including H1N1 and H3N2 subtypes, as well as influenza B virus and clinical isolates with half maximal inhibitory concentration values (IC50) in the range of 0.29 to 12 µg/mL. In addition, 1 was also active against oseltamivir-resistant influenza virus strain of A/PR/8/34 with NA-H274Y mutation. Studies on the detailed modes of action suggested that 1 functioned by interfering with the fusogenic process of hemagglutinin (HA) of influenza A virus (IAV), thereby blocking the entry of virus into host cells. Furthermore, the anti-IAV activity of 1 was assessed with infected BALB/c mice, of which the appearance, weight, and histopathological changes in the infected lungs were significantly alleviated compared with the no-drug-treated group. Conclusively, these results provide evidence that natural products derived from microbes residing in animal intestines might be a good source for antiviral drug discovery.
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18
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Butenolides from Streptomyces albus J1074 Act as External Signals To Stimulate Avermectin Production in Streptomyces avermitilis. Appl Environ Microbiol 2018; 84:AEM.02791-17. [PMID: 29500256 DOI: 10.1128/aem.02791-17] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2017] [Accepted: 02/20/2018] [Indexed: 11/20/2022] Open
Abstract
In streptomycetes, autoregulators are important signaling compounds that trigger secondary metabolism, and they are regarded as Streptomyces hormones based on their extremely low effective concentrations (nM) and the involvement of specific receptor proteins. Our previous distribution study revealed that butenolide-type Streptomyces hormones, including avenolide, are a general class of signaling molecules in streptomycetes and that Streptomyces albus strain J1074 may produce butenolide-type Streptomyces hormones. Here, we describe metabolite profiling of a disruptant of the S. albusaco gene, which encodes a key biosynthetic enzyme for butenolide-type Streptomyces hormones, and identify four butenolide compounds from S. albus J1074 that show avenolide activity. The compounds structurally resemble avenolide and show different levels of avenolide activity. A dual-culture assay with imaging mass spectrometry (IMS) analysis for in vivo metabolic profiling demonstrated that the butenolide compounds of S. albus J1074 stimulate avermectin production in another Streptomyces species, Streptomyces avermitilis, illustrating the complex chemical interactions through interspecies signals in streptomycetes.IMPORTANCE Microorganisms produce external and internal signaling molecules to control their complex physiological traits. In actinomycetes, Streptomyces hormones are low-molecular-weight signals that are key to our understanding of the regulatory mechanisms of Streptomyces secondary metabolism. This study reveals that acyl coenzyme A (acyl-CoA) oxidase is a common and essential biosynthetic enzyme for butenolide-type Streptomyces hormones. Moreover, the diffusible butenolide compounds from a donor Streptomyces strain were recognized by the recipient Streptomyces strain of a different species, resulting in the initiation of secondary metabolism in the recipient. This is an interesting report on the chemical interaction between two different streptomycetes via Streptomyces hormones. Information on the metabolite network may provide useful hints not only to clarification of the regulatory mechanism of secondary metabolism, but also to understanding of the chemical communication among streptomycetes to control their physiological traits.
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19
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Turan NB, Engin GÖ. Quorum Quenching. FUNDAMENTALS OF QUORUM SENSING, ANALYTICAL METHODS AND APPLICATIONS IN MEMBRANE BIOREACTORS 2018. [DOI: 10.1016/bs.coac.2018.02.003] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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20
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El-Naggar NEA, El-Bindary AAA, Abdel-Mogib M, Nour NS. In vitro activity, extraction, separation and structure elucidation of antibiotic produced by Streptomyces anulatus NEAE-94 active against multidrug-resistant Staphylococcus aureus. BIOTECHNOL BIOTEC EQ 2017. [DOI: 10.1080/13102818.2016.1276412] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Affiliation(s)
- Noura El-Ahmady El-Naggar
- Department of Bioprocess Development, Genetic Engineering and Biotechnology Research Institute, City of Scientific Research and Technological Applications, Alexandria, Egypt
| | | | - Mamdouh Abdel-Mogib
- Department of Chemistry, Faculty of Science, Mansoura University, Mansoura, Egypt
| | - Noura Salah Nour
- Department of Bioprocess Development, Genetic Engineering and Biotechnology Research Institute, City of Scientific Research and Technological Applications, Alexandria, Egypt
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21
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Yaniv K, Golberg K, Kramarsky-Winter E, Marks R, Pushkarev A, Béjà O, Kushmaro A. Functional marine metagenomic screening for anti-quorum sensing and anti-biofilm activity. BIOFOULING 2017; 33:1-13. [PMID: 27882771 DOI: 10.1080/08927014.2016.1253684] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/22/2016] [Accepted: 10/17/2016] [Indexed: 06/06/2023]
Abstract
Quorum sensing (QS), a cell-to-cell communication process, entails the production of signaling molecules that enable synchronized gene expression in microbial communities to regulate myriad microbial functions, including biofilm formation. QS disruption may constitute an innovative approach to the design of novel antifouling and anti-biofilm agents. To identify novel quorum sensing inhibitors (QSI), 2,500 environmental bacterial artificial chromosomes (BAC) from uncultured marine planktonic bacteria were screened for QSI activity using soft agar overlaid with wild type Chromobacterium violaceum as an indicator. Of the BAC library clones, 7% showed high QSI activity (>40%) against the indicator bacterium, suggesting that QSI is common in the marine environment. The most active compound, eluted from BAC clone 14-A5, disrupted QS signaling pathways and reduced biofilm formation in both Pseudomonas aeruginosa and Acinetobacter baumannii. The mass spectra of the active BAC clone (14-A5) that had been visualized by thin layer chromatography was dominated by a m/z peak of 362.1.
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Affiliation(s)
- Karin Yaniv
- a Avram and Stella Goldstein-Goren Department of Biotechnology Engineering, Faculty of Engineering Sciences , Ben-Gurion University of the Negev , Beer-Sheva , Israel
| | - Karina Golberg
- a Avram and Stella Goldstein-Goren Department of Biotechnology Engineering, Faculty of Engineering Sciences , Ben-Gurion University of the Negev , Beer-Sheva , Israel
| | - Esti Kramarsky-Winter
- a Avram and Stella Goldstein-Goren Department of Biotechnology Engineering, Faculty of Engineering Sciences , Ben-Gurion University of the Negev , Beer-Sheva , Israel
| | - Robert Marks
- a Avram and Stella Goldstein-Goren Department of Biotechnology Engineering, Faculty of Engineering Sciences , Ben-Gurion University of the Negev , Beer-Sheva , Israel
- b The Ilse Katz Center for Meso and Nanoscale Science and Technology , Ben-Gurion University of the Negev , Beer-Sheva , Israel
| | - Alina Pushkarev
- c Faculty of Biology , Technion-Israel Institute of Technology , Haifa , Israel
| | - Oded Béjà
- c Faculty of Biology , Technion-Israel Institute of Technology , Haifa , Israel
| | - Ariel Kushmaro
- a Avram and Stella Goldstein-Goren Department of Biotechnology Engineering, Faculty of Engineering Sciences , Ben-Gurion University of the Negev , Beer-Sheva , Israel
- b The Ilse Katz Center for Meso and Nanoscale Science and Technology , Ben-Gurion University of the Negev , Beer-Sheva , Israel
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22
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Yang Y, Zhou H, Du G, Feng K, Feng T, Fu X, Liu J, Zeng Y. A Monooxygenase from
Boreostereum vibrans
Catalyzes Oxidative Decarboxylation in a Divergent Vibralactone Biosynthesis Pathway. Angew Chem Int Ed Engl 2016; 55:5463-6. [PMID: 27007916 DOI: 10.1002/anie.201510928] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2015] [Revised: 02/09/2016] [Indexed: 12/25/2022]
Affiliation(s)
- Yan‐Long Yang
- State Key Laboratory of Phytochemistry and Plant Resources in West China Kunming Institute of Botany Chinese Academy of Sciences Kunming 650201 Yunnan China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Hui Zhou
- State Key Laboratory of Phytochemistry and Plant Resources in West China Kunming Institute of Botany Chinese Academy of Sciences Kunming 650201 Yunnan China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Gang Du
- State Key Laboratory of Phytochemistry and Plant Resources in West China Kunming Institute of Botany Chinese Academy of Sciences Kunming 650201 Yunnan China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Ke‐Na Feng
- State Key Laboratory of Phytochemistry and Plant Resources in West China Kunming Institute of Botany Chinese Academy of Sciences Kunming 650201 Yunnan China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Tao Feng
- State Key Laboratory of Phytochemistry and Plant Resources in West China Kunming Institute of Botany Chinese Academy of Sciences Kunming 650201 Yunnan China
- School of Pharmaceutical Sciences South-Central University for Nationalities Wuhan 430074 China
| | - Xiao‐Li Fu
- State Key Laboratory of Phytochemistry and Plant Resources in West China Kunming Institute of Botany Chinese Academy of Sciences Kunming 650201 Yunnan China
| | - Ji‐Kai Liu
- State Key Laboratory of Phytochemistry and Plant Resources in West China Kunming Institute of Botany Chinese Academy of Sciences Kunming 650201 Yunnan China
- School of Pharmaceutical Sciences South-Central University for Nationalities Wuhan 430074 China
| | - Ying Zeng
- State Key Laboratory of Phytochemistry and Plant Resources in West China Kunming Institute of Botany Chinese Academy of Sciences Kunming 650201 Yunnan China
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Yang Y, Zhou H, Du G, Feng K, Feng T, Fu X, Liu J, Zeng Y. A Monooxygenase from
Boreostereum vibrans
Catalyzes Oxidative Decarboxylation in a Divergent Vibralactone Biosynthesis Pathway. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201510928] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Yan‐Long Yang
- State Key Laboratory of Phytochemistry and Plant Resources in West China Kunming Institute of Botany Chinese Academy of Sciences Kunming 650201 Yunnan China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Hui Zhou
- State Key Laboratory of Phytochemistry and Plant Resources in West China Kunming Institute of Botany Chinese Academy of Sciences Kunming 650201 Yunnan China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Gang Du
- State Key Laboratory of Phytochemistry and Plant Resources in West China Kunming Institute of Botany Chinese Academy of Sciences Kunming 650201 Yunnan China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Ke‐Na Feng
- State Key Laboratory of Phytochemistry and Plant Resources in West China Kunming Institute of Botany Chinese Academy of Sciences Kunming 650201 Yunnan China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Tao Feng
- State Key Laboratory of Phytochemistry and Plant Resources in West China Kunming Institute of Botany Chinese Academy of Sciences Kunming 650201 Yunnan China
- School of Pharmaceutical Sciences South-Central University for Nationalities Wuhan 430074 China
| | - Xiao‐Li Fu
- State Key Laboratory of Phytochemistry and Plant Resources in West China Kunming Institute of Botany Chinese Academy of Sciences Kunming 650201 Yunnan China
| | - Ji‐Kai Liu
- State Key Laboratory of Phytochemistry and Plant Resources in West China Kunming Institute of Botany Chinese Academy of Sciences Kunming 650201 Yunnan China
- School of Pharmaceutical Sciences South-Central University for Nationalities Wuhan 430074 China
| | - Ying Zeng
- State Key Laboratory of Phytochemistry and Plant Resources in West China Kunming Institute of Botany Chinese Academy of Sciences Kunming 650201 Yunnan China
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Zhou J, Lyu Y, Richlen M, Anderson DM, Cai Z. Quorum sensing is a language of chemical signals and plays an ecological role in algal-bacterial interactions. CRITICAL REVIEWS IN PLANT SCIENCES 2016; 35:81-105. [PMID: 28966438 PMCID: PMC5619252 DOI: 10.1080/07352689.2016.1172461] [Citation(s) in RCA: 102] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
Algae are ubiquitous in the marine environment, and the ways in which they interact with bacteria are of particular interest in marine ecology field. The interactions between primary producers and bacteria impact the physiology of both partners, alter the chemistry of their environment, and shape microbial diversity. Although algal-bacterial interactions are well known and studied, information regarding the chemical-ecological role of this relationship remains limited, particularly with respect to quorum sensing (QS), which is a system of stimuli and response correlated to population density. In the microbial biosphere, QS is pivotal in driving community structure and regulating behavioral ecology, including biofilm formation, virulence, antibiotic resistance, swarming motility, and secondary metabolite production. Many marine habitats, such as the phycosphere, harbour diverse populations of microorganisms and various signal languages (such as QS-based autoinducers). QS-mediated interactions widely influence algal-bacterial symbiotic relationships, which in turn determine community organization, population structure, and ecosystem functioning. Understanding infochemicals-mediated ecological processes may shed light on the symbiotic interactions between algae host and associated microbes. In this review, we summarize current achievements about how QS modulates microbial behavior, affects symbiotic relationships, and regulates phytoplankton chemical ecological processes. Additionally, we present an overview of QS-modulated co-evolutionary relationships between algae and bacterioplankton, and consider the potential applications and future perspectives of QS.
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Affiliation(s)
- Jin Zhou
- The Division of Ocean Science and Technology, Graduate School at Shenzhen, Tsinghua University, Shenzhen, 518055, P. R. China
| | - Yihua Lyu
- South China Sea Environment Monitoring Center, State Oceanic Administration, Guangzhou, 510300, P. R. China
| | - Mindy Richlen
- Department of Biology, Woods Hole Oceanographic Institution, 266 Woods Hole Rd., MS 32, Woods Hole, Massachusetts, 02543, USA
| | - Donald M. Anderson
- Department of Biology, Woods Hole Oceanographic Institution, 266 Woods Hole Rd., MS 32, Woods Hole, Massachusetts, 02543, USA
| | - Zhonghua Cai
- The Division of Ocean Science and Technology, Graduate School at Shenzhen, Tsinghua University, Shenzhen, 518055, P. R. China
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Wang T, Jiang Y, Ma KX, Li YQ, Huang R, Xie XS, Wu SH. Two new butenolides produced by an Actinomycete Streptomyces sp. Chem Biodivers 2015; 11:929-33. [PMID: 24934678 DOI: 10.1002/cbdv.201300321] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2013] [Indexed: 11/08/2022]
Abstract
Two new butenolides, (4S)-4,10-dihydroxydodec-2-en-1,4-olide (1) and (4S)-4,8,10-trihydroxy-10-methyldodec-2-en-1,4-olide (2), together with three known compounds, MKN-003B (3), MKN-003C (4), and cyclo(Ala-Leu) (5), were isolated from the culture broth of a bacterium of the genus Streptomyces derived from soil environment. The structures of these compounds were elucidated on the basis of spectroscopic analysis. The inhibitory activities of the butenolides against eight pathogenic fungi were evaluated. All of the butenolides showed moderate-or-weak antifungal activities in a broth microdilution assay.
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Affiliation(s)
- Tang Wang
- Key Laboratory for Microbial Resources of the Ministry of Education, Yunnan Institute of Microbiology, Yunnan University, Kunming 650091, P. R. China (phone: +86-871-65032423)
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New ikarugamycin derivatives with antifungal and antibacterial properties from Streptomyces zhaozhouensis. Mar Drugs 2014; 13:128-40. [PMID: 25551780 PMCID: PMC4306928 DOI: 10.3390/md13010128] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2014] [Accepted: 12/16/2014] [Indexed: 12/23/2022] Open
Abstract
A bioassay guided fractionation of the ethyl acetate extract from culture broths of the strain Streptomyces zhaozhouensis CA-185989 led to the isolation of three new polycyclic tetramic acid macrolactams (1-3) and four known compounds. All the new compounds were structurally related to the known Streptomyces metabolite ikarugamycin (4). Their structural elucidation was accomplished using a combination of electrospray-time of flight mass spectrometry (ESI-TOF MS) and 1D and 2D NMR analyses. Compounds 1-3 showed antifungal activity against Aspergillus fumigatus, Candida albicans and antibacterial activity against methicillin-resistant Staphylococcus aureus (MRSA).
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Two butenolides with PPARα agonistic activity from a marine-derived Streptomyces. J Antibiot (Tokyo) 2014; 68:345-7. [PMID: 25388602 DOI: 10.1038/ja.2014.151] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2014] [Revised: 09/23/2014] [Accepted: 10/04/2014] [Indexed: 11/08/2022]
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Nomula R, Raju G, Radha Krishna P. Total synthesis of two γ-butyrolactone containing compounds (Z,11S)-3,4-trans-11-hydroxy-3-methyldodec-cis-6-en-4-olide and (Z)-3,4-trans-11-oxo-3-methyldodec-cis-6-en-4-olide. Tetrahedron Lett 2014. [DOI: 10.1016/j.tetlet.2014.09.021] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Yang X, Liu Y, Li S, Yang F, Zhao L, Peng L, Ding Z. Antimicrobial Metabolites from Endophytic Streptomyces sp. YIM61470. Nat Prod Commun 2014. [DOI: 10.1177/1934578x1400900916] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Six compounds were isolated from Streptomyces sp. YIM61470, and their structures elucidated by spectral analysis as ( R)-1- O-(phenylacetyl)glycerol (1), 4′,5-dihydroxy-6-(3,3–dimethylallyl)-7-methoxyflavanone (2), (32 R,33 R,34 S)-32,33,34,35-bacteriohopanetetrol (3), MKN-003C (4), cyclo (L-Pro-L-Gly) (5), and cyclo(L-Pro-L-Tyr) (6). Compound 1, an chiral monoacylglycerol, was isolated from a natural source for the first time. Compound 2 was first found in microorganisms, and compound 3, a bacteriohopanoid, was found first in the genus Streptomyces. Compounds 1-6 showed weak anti-microbial activity.
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Affiliation(s)
- Xueqiong Yang
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, School of Chemical Science and Technology, Yunnan University, Kunming 650091, China
| | - Yun Liu
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, School of Chemical Science and Technology, Yunnan University, Kunming 650091, China
| | - Shuquan Li
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, School of Chemical Science and Technology, Yunnan University, Kunming 650091, China
| | - Fangfang Yang
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, School of Chemical Science and Technology, Yunnan University, Kunming 650091, China
| | - Lixing Zhao
- Yunnan Institute of Microbiology, Yunnan University, Kunming 650091, China
| | - Li Peng
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, School of Chemical Science and Technology, Yunnan University, Kunming 650091, China
| | - Zhongtao Ding
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, School of Chemical Science and Technology, Yunnan University, Kunming 650091, China
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Abdelmohsen UR, Bayer K, Hentschel U. Diversity, abundance and natural products of marine sponge-associated actinomycetes. Nat Prod Rep 2014; 31:381-99. [DOI: 10.1039/c3np70111e] [Citation(s) in RCA: 186] [Impact Index Per Article: 18.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
This review discusses the diversity, abundance and natural products repertoire of actinomycetes associated with marine sponges. Comprehensive phylogenetic analysis was carried out and qPCR data on actinomycete abundances in sponge ecosystems are presented.
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Affiliation(s)
- Usama Ramadan Abdelmohsen
- Department of Botany II
- Julius-von-Sachs-Institute for Biological Sciences
- University of Würzburg
- 97082 Würzburg, Germany
- Department of Pharmacognosy
| | - Kristina Bayer
- Department of Botany II
- Julius-von-Sachs-Institute for Biological Sciences
- University of Würzburg
- 97082 Würzburg, Germany
| | - Ute Hentschel
- Department of Botany II
- Julius-von-Sachs-Institute for Biological Sciences
- University of Würzburg
- 97082 Würzburg, Germany
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31
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Marine sediment-derived Streptomyces bacteria from British Columbia, Canada are a promising microbiota resource for the discovery of antimicrobial natural products. PLoS One 2013; 8:e77078. [PMID: 24130838 PMCID: PMC3794959 DOI: 10.1371/journal.pone.0077078] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2013] [Accepted: 09/05/2013] [Indexed: 11/24/2022] Open
Abstract
Representatives of the genus Streptomyces from terrestrial sources have been the focus of intensive research for the last four decades because of their prolific production of chemically diverse and biologically important compounds. However, metabolite research from this ecological niche had declined significantly in the past years because of the rediscovery of the same bioactive compounds and redundancy of the sample strains. More recently, a new picture has begun to emerge in which marine-derived Streptomyces bacteria have become the latest hot spot as new source for unique and biologically active compounds. Here, we investigated the marine sediments collected in the temperate cold waters from British Columbia, Canada as a valuable source for new groups of marine-derived Streptomyces with antimicrobial activities. We performed culture dependent isolation from 49 marine sediments samples and obtained 186 Streptomyces isolates, 47 of which exhibited antimicrobial activities. Phylogenetic analyses of the active isolates resulted in the identification of four different clusters of bioactive Streptomyces including a cluster with isolates that appear to represent novel species. Moreover, we explored whether these marine-derived Streptomyces produce new secondary metabolites with antimicrobial properties. Chemical analyses revealed structurally diverse secondary metabolites, including four new antibacterial novobiocin analogues. We conducted structure-activity relationships (SAR) studies of these novobiocin analogues against methicillin-resistant Staphylococcus aureus (MRSA). In this study, we revealed the importance of carbamoyl and OMe moieties at positions 3” and 4” of novobiose as well as the hydrogen substituent at position 5 of hydroxybenzoate ring for the anti-MRSA activity. Changes in the substituents at these positions dramatically impede or completely eliminate the inhibitory activity of novobiocins against MRSA.
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Botubol JM, Macías-Sánchez AJ, Collado IG, Hernández-Galán R. Stereoselective Synthesis and Absolute Configuration Determination of Xylariolide A. European J Org Chem 2013. [DOI: 10.1002/ejoc.201201526] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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Zheng JF, Lan HQ, Yang RF, Peng QL, Xiao ZH, Tuo SC, Hu KZ, Xiang YG, Wei Z, Zhang Z, Huang PQ. Asymmetric Syntheses of the Sex Pheromones of Pine Sawflies, Their Homologs and Stereoisomers. Helv Chim Acta 2012. [DOI: 10.1002/hlca.201200341] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Avenolide, a Streptomyces hormone controlling antibiotic production in Streptomyces avermitilis. Proc Natl Acad Sci U S A 2011; 108:16410-5. [PMID: 21930904 DOI: 10.1073/pnas.1113908108] [Citation(s) in RCA: 123] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Gram-positive bacteria of the genus Streptomyces are industrially important microorganisms, producing >70% of commercially important antibiotics. The production of these compounds is often regulated by low-molecular-weight bacterial hormones called autoregulators. Although 60% of Streptomyces strains may use γ-butyrolactone-type molecules as autoregulators and some use furan-type molecules, little is known about the signaling molecules used to regulate antibiotic production in many other members of this genus. Here, we purified a signaling molecule (avenolide) from Streptomyces avermitilis--the producer of the important anthelmintic agent avermectin with annual world sales of $850 million--and determined its structure, including stereochemistry, by spectroscopic analysis and chemical synthesis as (4S,10R)-10-hydroxy-10-methyl-9-oxo-dodec-2-en-1,4-olide, a class of Streptomyces autoregulator. Avenolide is essential for eliciting avermectin production and is effective at nanomolar concentrations with a minimum effective concentration of 4 nM. The aco gene of S. avermitilis, which encodes an acyl-CoA oxidase, is required for avenolide biosynthesis, and homologs are also present in Streptomyces fradiae, Streptomyces ghanaensis, and Streptomyces griseoauranticus, suggesting that butenolide-type autoregulators may represent a widespread and another class of Streptomyces autoregulator involved in regulating antibiotic production.
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Yadav J, Mandal S, Reddy J, Srihari P. Stereoselective total synthesis of (+)-sapinofuranone B. Tetrahedron 2011. [DOI: 10.1016/j.tet.2011.04.072] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Gliszczyńska A, Świtalska M, Wietrzyk J, Wawrzenczyk C. Synthesis of a Natural γ-Butyrolactone from Nerylacetone by Acremonium roseum and Fusarium oxysporum Cultures. Nat Prod Commun 2011. [DOI: 10.1177/1934578x1100600313] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Natural γ-butyrolactone - (4 R, 5 R)-5-(4′-methyl-3′pentenyl)-4-hydroxy-5-methyl-dihydrofuran-2-one (2) was isolated as the product of microbial transformation of nerylacetone (1) by fungal strains. This product was obtained as the enantiomer (+) in high yields 24% and 61% with ee=94% and 82% by the biotransformation in the cultures of Acremonium roseum AM336 and Fusarium oxysporum AM13 respectively.
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Affiliation(s)
- Anna Gliszczyńska
- Department of Chemistry, Wroclaw University of Environmental and Life Sciences, Norwida 25, 50-375 Wroclaw, Poland
| | - Marta Świtalska
- Ludwik Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, Department of Experimental Oncology, Weigla 12, 53-114 Wrocłtaw, Poland
| | - Joanna Wietrzyk
- Ludwik Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, Department of Experimental Oncology, Weigla 12, 53-114 Wrocłtaw, Poland
| | - Czesłtaw Wawrzenczyk
- Department of Chemistry, Wroclaw University of Environmental and Life Sciences, Norwida 25, 50-375 Wroclaw, Poland
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Sobolevskaya MP, Kuznetsova TA. Biologically active metabolites of marine actinobacteria. RUSSIAN JOURNAL OF BIOORGANIC CHEMISTRY 2010; 36:607-21. [DOI: 10.1134/s1068162010050031] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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40
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Diversity and exploration of bioactive marine actinomycetes in the Bay of Bengal of the Puducherry coast of India. Indian J Microbiol 2010; 50:76-82. [PMID: 23100811 DOI: 10.1007/s12088-010-0048-3] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2008] [Accepted: 05/15/2008] [Indexed: 10/19/2022] Open
Abstract
The present study was designed to investigate the Puducherry coast of the Bay of Bengal, India for the diversity of bioactive actinomycetes. A total of 50 actinomycete strains were isolated from the marine sediments and most of the strains were belongs to Streptomyces. These strains were identified by means of morphological physiological, biochemical and cultural characteristics. The isolates were subjected to shake flask fermentation and the secondary metabolites were extracted with ethyl acetate and screened for cytotoxicity, hemolytic activity and antimicrobial activity against selected bacterial and fungal pathogens. The cytotoxic activity was evaluated using HeLa cell lines by 3-(4,5-Dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide, a tetrazole (MTT) assay, hemolytic activity on mouse erythrocytes and the antifungal activity was evaluated by MTT cytotoxic assay against Aspergillus niger, Aspergillus fumigatus and Candida albicans. The antibacterial activity was studied against Staphylococcus aureus, Bacillus subtilis, Escherichia coli and Klebsiella pneumoniae. The cytotoxicity and antimicrobial activity of secondary metabolite was found to be concentration dependent and nearly 24% of isolates showed significant antimicrobial, hemolytic and cytotoxic activity. The results of our study indicate the diversity and bioactive potential of marine actinomycetes isolated in the Puducherry coast.
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42
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Access to novel bicyclic fused γ-butyrolactone using [3,3]-sigmatropic rearrangement and acid-lactonization sequence as key transformation. Tetrahedron Lett 2010. [DOI: 10.1016/j.tetlet.2010.04.041] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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43
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Anti-parasitic compounds from Streptomyces sp. strains isolated from Mediterranean sponges. Mar Drugs 2010; 8:373-80. [PMID: 20390111 PMCID: PMC2852844 DOI: 10.3390/md8020373] [Citation(s) in RCA: 107] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2009] [Revised: 02/02/2010] [Accepted: 02/04/2010] [Indexed: 01/15/2023] Open
Abstract
Actinomycetes are prolific producers of pharmacologically important compounds accounting for about 70% of the naturally derived antibiotics that are currently in clinical use. In this study, we report on the isolation of Streptomyces sp. strains from Mediterranean sponges, on their secondary metabolite production and on their screening for anti-infective activities. Bioassay-guided isolation and purification yielded three previously known compounds namely, cyclic depsipeptide valinomycin, indolocarbazole alkaloid staurosporine and butenolide. This is the first report of the isolation of valinomycin from a marine source. These compounds exhibited novel anti-parasitic activities specifically against Leishmania major (valinomycin IC50 < 0.11 μM; staurosporine IC50 5.30 μM) and Trypanosoma brucei brucei (valinomycin IC50 0.0032 μM; staurosporine IC50 0.022 μM; butenolide IC50 31.77 μM). These results underscore the potential of marine actinomycetes to produce bioactive compounds as well as the re-evaluation of previously known compounds for novel anti-infective activities.
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Xu Y, He H, Schulz S, Liu X, Fusetani N, Xiong H, Xiao X, Qian PY. Potent antifouling compounds produced by marine Streptomyces. BIORESOURCE TECHNOLOGY 2010; 101:1331-1336. [PMID: 19818601 DOI: 10.1016/j.biortech.2009.09.046] [Citation(s) in RCA: 57] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/21/2009] [Revised: 09/11/2009] [Accepted: 09/14/2009] [Indexed: 05/28/2023]
Abstract
Biofouling causes huge economic loss and a recent global ban on organotin compounds as antifouling agents has increased the need for safe and effective antifouling compounds. Five structurally similar compounds were isolated from the crude extract of a marine Streptomyces strain obtained from deep-sea sediments. Antifouling activities of these five compounds and four other structurally-related compounds isolated from a North Sea Streptomyces strain against major fouling organisms were compared to probe structure-activity relationships of compounds. The functional moiety responsible for antifouling activity lies in the 2-furanone ring and that the lipophilicity of compounds substantially affects their antifouling activities. Based on these findings, a compound with a straight alkyl side-chain was synthesized and proved itself as a very effective non-toxic, anti-larval settlement agent against three major fouling organisms. The strong antifouling activity, relatively low toxicity, and simple structures of these compounds make them promising candidates for new antifouling additives.
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Affiliation(s)
- Ying Xu
- KAUST Global Academic Partnership Program, Department of Biology, The Hong Kong University of Science and Technology, Clear Water Bay, Hong Kong SAR, China
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Wang Y, Dai WM. Total synthesis of diastereomeric marine butenolides possessing a syn-aldol subunit at C10 and C11 and the related C11-ketone. Tetrahedron 2010. [DOI: 10.1016/j.tet.2009.10.115] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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46
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Blunt JW, Copp BR, Munro MHG, Northcote PT, Prinsep MR. Marine natural products. Nat Prod Rep 2010; 27:165-237. [DOI: 10.1039/b906091j] [Citation(s) in RCA: 322] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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47
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Olano C, Méndez C, Salas JA. Antitumor compounds from marine actinomycetes. Mar Drugs 2009; 7:210-48. [PMID: 19597582 PMCID: PMC2707044 DOI: 10.3390/md7020210] [Citation(s) in RCA: 215] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2009] [Revised: 06/08/2009] [Accepted: 06/11/2009] [Indexed: 11/16/2022] Open
Abstract
Chemotherapy is one of the main treatments used to combat cancer. A great number of antitumor compounds are natural products or their derivatives, mainly produced by microorganisms. In particular, actinomycetes are the producers of a large number of natural products with different biological activities, including antitumor properties. These antitumor compounds belong to several structural classes such as anthracyclines, enediynes, indolocarbazoles, isoprenoides, macrolides, non-ribosomal peptides and others, and they exert antitumor activity by inducing apoptosis through DNA cleavage mediated by topoisomerase I or II inhibition, mitochondria permeabilization, inhibition of key enzymes involved in signal transduction like proteases, or cellular metabolism and in some cases by inhibiting tumor-induced angiogenesis. Marine organisms have attracted special attention in the last years for their ability to produce interesting pharmacological lead compounds.
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Affiliation(s)
- Carlos Olano
- Departamento de Biología Funcional e Instituto Universitario de Oncología del Principado de Asturias (I.U.O.P.A), Universidad de Oviedo, 33006 Oviedo, Spain; E-Mails:
(C.O.);
(C.M.)
| | - Carmen Méndez
- Departamento de Biología Funcional e Instituto Universitario de Oncología del Principado de Asturias (I.U.O.P.A), Universidad de Oviedo, 33006 Oviedo, Spain; E-Mails:
(C.O.);
(C.M.)
| | - José A. Salas
- Departamento de Biología Funcional e Instituto Universitario de Oncología del Principado de Asturias (I.U.O.P.A), Universidad de Oviedo, 33006 Oviedo, Spain; E-Mails:
(C.O.);
(C.M.)
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Dobretsov S, Teplitski M, Paul V. Mini-review: quorum sensing in the marine environment and its relationship to biofouling. BIOFOULING 2009; 25:413-427. [PMID: 19306145 DOI: 10.1080/08927010902853516] [Citation(s) in RCA: 215] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Bacterial quorum sensing (QS) is a cell-cell communication and gene regulatory mechanism that allows bacteria to coordinate swarming, biofilm formation, stress resistance, and production of toxins and secondary metabolites in response to threshold concentrations of QS signals that accumulate within a diffusion-limited environment. This review focuses on the role of QS signaling and QS inhibition in marine bacteria by compounds derived from marine organisms. Since the formation of a biofilm is considered to be an initial step in the development of fouling, direct and indirect effects of QS signals and inhibitors on the process of marine biofouling are discussed. Directions for future investigations and QS-related biotechnological applications are highlighted.
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Affiliation(s)
- Sergey Dobretsov
- Department of Marine Science and Fisheries, Sultan Qaboos University, Sultanate of Oman.
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50
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Xiao WL, Lei C, Ren J, Liao TG, Pu JX, Pittman C, Lu Y, Zheng YT, Zhu HJ, Sun HD. Structure Elucidation and Theoretical Investigation of Key Steps in the Biogenetic Pathway of Schisanartane Nortriterpenoids by Using DFT Methods. Chemistry 2008; 14:11584-92. [DOI: 10.1002/chem.200801092] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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