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Rathinam AJ, Santhaseelan H, Dahms HU, Dinakaran VT, Murugaiah SG. Bioprospecting of unexplored halophilic actinobacteria against human infectious pathogens. 3 Biotech 2023; 13:398. [PMID: 37974926 PMCID: PMC10645811 DOI: 10.1007/s13205-023-03812-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2023] [Accepted: 10/08/2023] [Indexed: 11/19/2023] Open
Abstract
Human pathogenic diseases received much attention recently due to their uncontrolled spread of antimicrobial resistance (AMR) which causes several threads every year. Effective alternate antimicrobials are urgently required to combat those disease causing infectious microbes. Halophilic actinobacteria revealed huge potentials and unexplored cultivable/non-cultivable actinobacterial species producing enormous antimicrobials have been proved in several genomics approaches. Potential gene clusters, PKS and NRPKS from Nocardia, Salinospora, Rhodococcus, and Streptomyces have wide range coding genes of secondary metabolites. Biosynthetic pathways identification via various approaches like genome mining, In silico, OSMAC (one strain many compound) analysis provides better identification of knowing the active metabolites using several databases like AMP, APD and CRAMPR, etc. Genome constellations of actinobacteria particularly the prediction of BGCs (Biosynthetic Gene Clusters) to mine the bioactive molecules such as pigments, biosurfactants and few enzymes have been reported for antimicrobial activity. Saltpan, saltlake, lagoon and haloalkali environment exploring potential actinobacterial strains Micromonospora, Kocuria, Pseudonocardia, and Nocardiopsis revealed several acids and ester derivatives with antimicrobial potential. Marine sediments and marine macro organisms have been found as significant population holders of potential actinobacterial strains. Deadly infectious diseases (IDs) including tuberculosis, ventilator-associated pneumonia and Candidiasis, have been targeted by halo-actinobacterial metabolites with promising results. Methicillin resistant Staphylococus aureus and virus like Encephalitic alphaviruses were potentially targeted by halophilic actinobacterial metabolites by the compound Homoseongomycin from sponge associated antinobacterium. In this review, we discuss the potential antimicrobial properties of various biomolecules extracted from the unexplored halophilic actinobacterial strains specifically against human infectious pathogens along with prospective genomic constellations.
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Affiliation(s)
- Arthur James Rathinam
- Department of Marine Science, Bharathidasan University, Tiruchirappalli, 620 024 India
| | - Henciya Santhaseelan
- Department of Marine Science, Bharathidasan University, Tiruchirappalli, 620 024 India
| | - Hans-Uwe Dahms
- Department of Biomedical Science and Environmental Biology, Kaohsiung Medical University, Kaohsiung, 80708 Taiwan
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2
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Chung D, Nguyen HT, Yu NH, Yu WJ, Kwon YM, Bae SS, Choi G, Kim JC. In vitro and in vivo antimicrobial activity of the fungal metabolite toluquinol against phytopathogenic bacteria. Front Microbiol 2023; 14:1221865. [PMID: 37583517 PMCID: PMC10424571 DOI: 10.3389/fmicb.2023.1221865] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2023] [Accepted: 07/07/2023] [Indexed: 08/17/2023] Open
Abstract
Introduction Bacterial plant diseases cause tremendous economic losses worldwide. However, a few effective and sustainable control methods are currently available. To discover novel and effective management approaches, we screened marine fungi for their antibacterial activity against phytopathogenic bacteria in vitro and in vivo. Methods We screened the culture broth of 55 fungal strains isolated from various marine sources (seawater, algae, and sediment) for their in vitro antibacterial activity using the broth microdilution method. Then, only the fungal strain (designated UL-Ce9) with higher antibacterial activity in vitro was tested in an in vivo experiment against tomato bacterial wilt. The active compounds of UL-Ce9 were extracted using ethyl acetate, purified by a series of chromatography, and the structure was elucidated by nuclear magnetic resonance spectroscopy. Pesticide formulations of toluquinol were prepared as soluble concentrates and wettable powder. The disease control efficacy of toluquinol formulations was evaluated against blight of rice and the bacterial wilt of tomato. Results and discussion The culture broth of UL-Ce9 showed high antibacterial activity against Agrobacterium tumefaciens, Ralstonia solanacearum, and Xanthomonas arboricola pv. pruni in vitro, and we selected UL-Ce9 for the in vivo test. The UL-Ce9 culture broth completely suppressed the bacterial wilt of tomato at a dilution of 1:5. The phylogenetic analysis identified UL-Ce9 as Penicillium griseofulvum, and the antibacterial metabolites were revealed as patulin, gentisyl alcohol, and toluquinol, all of which were associated with the biosynthetic pathway of the mycotoxin patulin. Patulin exhibited the highest antibacterial activity against 16 phytopathogenic bacteria in vitro, followed by toluquinol and gentisyl alcohol. As patulin is toxic, we selected toluquinol to investigate its potential use as a pesticide against bacterial plant diseases. Compared with the chemicals currently being applied in agriculture (streptomycin and oxytetracycline), toluquinol formulations exhibited similar and higher control efficacies against bacterial leaf blight of rice and bacterial wilt of tomato, respectively. To the best of our knowledge, this is the first report of the antibacterial activity of toluquinol against phytopathogenic bacteria. Our results suggest that toluquinol is a potential candidate for the development of novel and effective pesticides for the management of bacterial plant diseases.
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Affiliation(s)
- Dawoon Chung
- Department of Microbial Resources, National Marine Biodiversity Institute of Korea, Seocheon, Republic of Korea
| | - Hoa Thi Nguyen
- Plant Healthcare Research Institute, JAN153 Biotech Incorporated, Gwangju, Republic of Korea
- Center of Organic Biochemistry, Vietnam Institute of Industrial Chemistry, Ha Noi, Vietnam
| | - Nan Hee Yu
- Plant Healthcare Research Institute, JAN153 Biotech Incorporated, Gwangju, Republic of Korea
| | - Woon-Jong Yu
- Department of Microbial Resources, National Marine Biodiversity Institute of Korea, Seocheon, Republic of Korea
| | - Yong Min Kwon
- Department of Microbial Resources, National Marine Biodiversity Institute of Korea, Seocheon, Republic of Korea
| | - Seung Seob Bae
- Department of Microbial Resources, National Marine Biodiversity Institute of Korea, Seocheon, Republic of Korea
| | - Grace Choi
- Department of Microbial Resources, National Marine Biodiversity Institute of Korea, Seocheon, Republic of Korea
| | - Jin-Cheol Kim
- Plant Healthcare Research Institute, JAN153 Biotech Incorporated, Gwangju, Republic of Korea
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Yang Z, Liu C, Wang Y, Chen Y, Li Q, Zhang Y, Chen Q, Ju J, Ma J. MGCEP 1.0: A Genetic-Engineered Marine-Derived Chassis Cell for a Scaled Heterologous Expression Platform of Microbial Bioactive Metabolites. ACS Synth Biol 2022; 11:3772-3784. [PMID: 36241611 DOI: 10.1021/acssynbio.2c00362] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Marine microorganisms produce a variety of bioactive secondary metabolites, which represent a significant source of novel antibiotics. Heterologous expression is a valuable tool for discovering marine microbial secondary metabolites; however, marine-derived chassis cell is very scarce. Here, we build an efficient plug-and-play marine-derived gene clusters expression platform 1.0 (MGCEP 1.0) by the systematic engineering of the deep-sea-derived Streptomyces atratus SCSIO ZH16. For a proof of concept, four families of microbial bioactive metabolite biosynthetic gene clusters (BGCs), including alkaloids, aminonucleosides, nonribosomal peptides, and polyketides, were efficiently expressed in this platform. Moreover, 19 compounds, including two new angucycline antibiotics, were produced in MGCEP 1.0. Dynamic patterns of global biosynthetic gene expression in MGCEP 1.0 with or without a heterologous gene cluster were revealed at the transcriptome level. The platform MGCEP 1.0 provides new possibilities for expressing microbial secondary metabolites, especially of marine origin.
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Affiliation(s)
- Zhijie Yang
- CAS Key Laboratory of Tropical Marine Bio-Resources and Ecology, RNAM Center for Marine Microbiology, Guangdong Key Laboratory of Marine Materia Medica, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, Guangdong 510301, China.,College of Oceanology, University of Chinese Academy of Sciences, Qingdao 266400, China
| | - Chunyu Liu
- CAS Key Laboratory of Tropical Marine Bio-Resources and Ecology, RNAM Center for Marine Microbiology, Guangdong Key Laboratory of Marine Materia Medica, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, Guangdong 510301, China
| | - Yuyang Wang
- CAS Key Laboratory of Tropical Marine Bio-Resources and Ecology, RNAM Center for Marine Microbiology, Guangdong Key Laboratory of Marine Materia Medica, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, Guangdong 510301, China.,College of Oceanology, University of Chinese Academy of Sciences, Qingdao 266400, China
| | - Yingying Chen
- CAS Key Laboratory of Tropical Marine Bio-Resources and Ecology, RNAM Center for Marine Microbiology, Guangdong Key Laboratory of Marine Materia Medica, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, Guangdong 510301, China
| | - Qinglian Li
- CAS Key Laboratory of Tropical Marine Bio-Resources and Ecology, RNAM Center for Marine Microbiology, Guangdong Key Laboratory of Marine Materia Medica, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, Guangdong 510301, China.,Southern Marine Science and Engineering Guangdong Laboratory, Guangzhou, Guangdong 511458, China
| | - Yun Zhang
- CAS Key Laboratory of Tropical Marine Bio-Resources and Ecology, RNAM Center for Marine Microbiology, Guangdong Key Laboratory of Marine Materia Medica, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, Guangdong 510301, China.,Southern Marine Science and Engineering Guangdong Laboratory, Guangzhou, Guangdong 511458, China
| | - Qi Chen
- Southern Marine Science and Engineering Guangdong Laboratory, Guangzhou, Guangdong 511458, China
| | - Jianhua Ju
- CAS Key Laboratory of Tropical Marine Bio-Resources and Ecology, RNAM Center for Marine Microbiology, Guangdong Key Laboratory of Marine Materia Medica, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, Guangdong 510301, China.,Southern Marine Science and Engineering Guangdong Laboratory, Guangzhou, Guangdong 511458, China.,College of Oceanology, University of Chinese Academy of Sciences, Qingdao 266400, China
| | - Junying Ma
- CAS Key Laboratory of Tropical Marine Bio-Resources and Ecology, RNAM Center for Marine Microbiology, Guangdong Key Laboratory of Marine Materia Medica, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, Guangdong 510301, China.,Southern Marine Science and Engineering Guangdong Laboratory, Guangzhou, Guangdong 511458, China.,College of Oceanology, University of Chinese Academy of Sciences, Qingdao 266400, China
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4
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Newaz AW, Yong K, Yi W, Wu B, Zhang Z. Antimicrobial metabolites from the Indonesian mangrove sediment-derived fungus Penicillium chrysogenum sp. ZZ1151. Nat Prod Res 2022; 37:1702-1708. [PMID: 35879837 DOI: 10.1080/14786419.2022.2103813] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
Abstract
A total of 14 compounds including a novel tetrasubstituted benzene derivative peniprenylphenol A were isolated from a scaled-up culture of the Indonesian mangrove sediment-derived fungus Penicillium chrysogenum ZZ1151 in rice medium. Structures of the isolated compounds were determined based on their NMR spectroscopic analyses, HRESIMS data, optical rotation calculations and comparison with the reported data. New peniprenylphenol A (1) was found to have antimicrobial activities against human pathogenic methicillin-resistant Staphylococcus aureus (MRSA), Escherichia coli and Candida albicans with MIC values of 6, 13, and 13 µg/mL, respectively. The known compounds of penicimumide (2), preparaherquamide (5), uridine (6), thymine (7), 1,2-seco-trypacidin (8) communol G (9), clavatol (10), 4-hydroxybenzeneacetic acid methyl ester (11), 2,5-dihydroxyphenylacetic acid methyl ester (12), 2-hydroxyphenylacetic acid methyl ester (13) and 4-hydroxyphenylethanone (14) showed antimicrobial activity against at least one of the three tested pathogens with MIC values of 3-25 µg/mL.
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Affiliation(s)
- Asif Wares Newaz
- Ocean College, Zhoushan Campus, Zhejiang University, Zhoushan, China
| | - Kuo Yong
- Ocean College, Zhoushan Campus, Zhejiang University, Zhoushan, China
| | - Wenwen Yi
- Ocean College, Zhoushan Campus, Zhejiang University, Zhoushan, China
| | - Bin Wu
- Ocean College, Zhoushan Campus, Zhejiang University, Zhoushan, China
| | - Zhizhen Zhang
- Ocean College, Zhoushan Campus, Zhejiang University, Zhoushan, China
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5
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Siro G, Pipite A, Christi K, Srinivasan S, Subramani R. Marine Actinomycetes Associated with Stony Corals: A Potential Hotspot for Specialized Metabolites. Microorganisms 2022; 10:microorganisms10071349. [PMID: 35889068 PMCID: PMC9319285 DOI: 10.3390/microorganisms10071349] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2022] [Revised: 06/29/2022] [Accepted: 07/02/2022] [Indexed: 02/05/2023] Open
Abstract
Microbial secondary metabolites are an important source of antibiotics currently available for combating drug-resistant pathogens. These important secondary metabolites are produced by various microorganisms, including Actinobacteria. Actinobacteria have a colossal genome with a wide array of genes that code for several bioactive metabolites and enzymes. Numerous studies have reported the isolation and screening of millions of strains of actinomycetes from various habitats for specialized metabolites worldwide. Looking at the extent of the importance of actinomycetes in various fields, corals are highlighted as a potential hotspot for untapped secondary metabolites and new bioactive metabolites. Unfortunately, knowledge about the diversity, distribution and biochemistry of marine actinomycetes compared to hard corals is limited. In this review, we aim to summarize the recent knowledge on the isolation, diversity, distribution and discovery of natural compounds from marine actinomycetes associated with hard corals. A total of 11 new species of actinomycetes, representing nine different families of actinomycetes, were recovered from hard corals during the period from 2007 to 2022. In addition, this study examined a total of 13 new compounds produced by five genera of actinomycetes reported from 2017 to 2022 with antibacterial, antifungal and cytotoxic activities. Coral-derived actinomycetes have different mechanisms of action against their competitors.
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Affiliation(s)
- Galana Siro
- School of Agriculture, Geography, Environment, Ocean and Natural Sciences (SAGEONS), The University of the South Pacific, Laucala Campus, Suva, Fiji; (G.S.); (K.C.); (R.S.)
| | - Atanas Pipite
- School of Agriculture, Geography, Environment, Ocean and Natural Sciences (SAGEONS), The University of the South Pacific, Laucala Campus, Suva, Fiji; (G.S.); (K.C.); (R.S.)
- Correspondence: (A.P.); or (S.S.)
| | - Ketan Christi
- School of Agriculture, Geography, Environment, Ocean and Natural Sciences (SAGEONS), The University of the South Pacific, Laucala Campus, Suva, Fiji; (G.S.); (K.C.); (R.S.)
| | - Sathiyaraj Srinivasan
- Department of Bio & Environmental Technology, Division of Environmental & Life Science, College of Natural Science, Seoul Women’s University, 623 Hwarangno, Nowon-gu, Seoul 01797, Korea
- Correspondence: (A.P.); or (S.S.)
| | - Ramesh Subramani
- School of Agriculture, Geography, Environment, Ocean and Natural Sciences (SAGEONS), The University of the South Pacific, Laucala Campus, Suva, Fiji; (G.S.); (K.C.); (R.S.)
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6
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Pereira F. Machine Learning Methods to Predict the Terrestrial and Marine Origin of Natural Products. Mol Inform 2021; 40:e2060034. [PMID: 33787065 DOI: 10.1002/minf.202060034] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2021] [Accepted: 02/04/2021] [Indexed: 12/23/2022]
Abstract
In recent years there has been a growing interest in studying the differences between the chemical and biological space represented by natural products (NPs) of terrestrial and marine origin. In order to learn more about these two chemical spaces, marine natural products (MNPs) and terrestrial natural products (TNPs), a machine learning (ML) approach was developed in the current work to predict three classes, MNPs, TNPs and a third class of NPs that appear in both the terrestrial and marine environments. In total 22,398 NPs were retrieved from the Reaxys® database, from those 10,790 molecules are recorded as MNPs, 10,857 as TNPs, and 761 NPs appear registered as both MNPs and TNPs. Several ML algorithms such as Random Forest, Support Vector Machines, and deep learning Multilayer Perceptron networks have been benchmarked. The best performance was achieved with a consensus classification model, which predicted the external test set with an overall predictive accuracy up to 81 %. As far as we know this approach has never been intended and therefore allow to be used to better understand the chemical space defined by MNPs, TNPs or both, but also in virtual screening to define the applicability domain of QSAR models of MNPs and TNPs.
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Affiliation(s)
- Florbela Pereira
- LAQV and REQUIMTE, Departamento de Química, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, 2829-516, Caparica, Portugal
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7
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Ameen F, AlNadhari S, Al-Homaidan AA. Marine microorganisms as an untapped source of bioactive compounds. Saudi J Biol Sci 2021; 28:224-231. [PMID: 33424301 PMCID: PMC7783642 DOI: 10.1016/j.sjbs.2020.09.052] [Citation(s) in RCA: 44] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2020] [Revised: 09/11/2020] [Accepted: 09/27/2020] [Indexed: 01/12/2023] Open
Abstract
The search for novel biologically active molecules has extended to the screening of organisms associated with less explored environments. In this sense, Oceans, which cover nearly the 67% of the globe, are interesting ecosystems characterized by a high biodiversity that is worth being explored. As such, marine microorganisms are highly interesting as promising sources of new bioactive compounds of potential value to humans. Some of these microorganisms are able to survive in extreme marine environments and, as a result, they produce complex molecules with unique biological interesting properties for a wide variety of industrial and biotechnological applications. Thus, different marine microorganisms (fungi, myxomycetes, bacteria, and microalgae) producing compounds with antioxidant, antibacterial, apoptotic, antitumoral and antiviral activities have been already isolated. This review compiles and discusses the discovery of bioactive molecules from marine microorganisms reported from 2018 onwards. Moreover, it highlights the huge potential of marine microorganisms for obtaining highly valuable bioactive compounds.
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Affiliation(s)
- Fuad Ameen
- Department of Botany & Microbiology, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
| | - Saleh AlNadhari
- Department of Plant Protection, College of Agriculture, King Saud University, Riyadh, Saudi Arabia
| | - Ali A. Al-Homaidan
- Department of Botany & Microbiology, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
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8
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Shintre NA, Tamhane VA, Baig UI, Pund AS, Patwardhan RB, Deshpande NM. Diversity of Culturable Actinobacteria Producing Protease Inhibitors Isolated from the Intertidal Zones of Maharashtra, India. Curr Microbiol 2020; 77:3555-3564. [PMID: 32902705 DOI: 10.1007/s00284-020-02174-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2020] [Accepted: 08/21/2020] [Indexed: 11/26/2022]
Abstract
Phylogenetic diversity of culturable actinobacteria isolated from the intertidal regions of west coast of Maharashtra, India was studied using 16S rRNA gene sequencing. Total of 140 actinobacterial isolates were obtained, which belonged to 14 genera, 10 families and 65 putative species with Streptomyces being the most dominant (63%) genus followed by Nocardiopsis and Micromonospora. Isolates were screened for production of extracellular protease inhibitors (PI) against three pure proteases viz. chymotrypsin, trypsin, subtilisin and a crude extracellular protease from Pseudomonas aeruginosa. Eighty percent of the isolates showed PI activity against at least one of the four proteases, majority of these belonged to genus Streptomyces. Actinobacterial diversity from two sites Ade (17° 52' N, 73° 04' E) and Harnai (17° 48' N, 73° 05' E) with varying anthropological pressure showed that more putative species diversity was obtained from site with lower human intervention i.e. Ade (Shannon's H 3.45) than from Harnai (Shannon's H 2.83), a site with more human intervention. However, in Ade, percentage of isolates not showing PI activity against any of the proteases was close to 21% and that in Harnai was close to 9%. In other words, percentage of PI producers was lower at a site with lesser human intervention.
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Affiliation(s)
- Neha A Shintre
- Department of Microbiology, M.E.S. Abasaheb Garware College, Karve Road, Pune, Maharashtra, 411004, India
| | - Vaijayanti A Tamhane
- Institute of Bioinformatics and Biotechnology, Savitribai Phule Pune University, Pune, Maharashtra, 411007, India
| | - Ulfat I Baig
- Indian Institute of Science Education and Research, Pune (IISER-P), Dr. Homi Bhabha Road, Pashan, Pune, Maharashtra, 411008, India
| | - Anagha S Pund
- Indian Institute of Science Education and Research, Pune (IISER-P), Dr. Homi Bhabha Road, Pashan, Pune, Maharashtra, 411008, India
| | - Rajashree B Patwardhan
- Department of Microbiology, Haribhai V. Desai College of Commerce, Arts and Science, Pune, Maharashtra, 411002, India
| | - Neelima M Deshpande
- Department of Microbiology, M.E.S. Abasaheb Garware College, Karve Road, Pune, Maharashtra, 411004, India.
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Ma H, Chen S, Xiong H, Wang M, Hang W, Zhu X, Zheng Y, Ge B, Li R, Cui H. Astaxanthin from Haematococcus pluvialis ameliorates the chemotherapeutic drug (doxorubicin) induced liver injury through the Keap1/Nrf2/HO-1 pathway in mice. Food Funct 2020; 11:4659-4671. [DOI: 10.1039/c9fo02429h] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The aim of this study is to probe a new function of astaxanthin (AST) from Haematococcus pluvialis on chemotherapeutic drug (doxorubicin) induced liver injury in mice.
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Affiliation(s)
- Haotian Ma
- Institute of Molecular Agriculture and Bioenergy
- Shanxi Agricultural University
- Taigu 030801
- China
| | - Shuaihang Chen
- Institute of Molecular Agriculture and Bioenergy
- Shanxi Agricultural University
- Taigu 030801
- China
| | - Huaye Xiong
- College of Resources and Environment
- Southwest University
- Chongqing 400716
- China
| | - Meng Wang
- Institute of Molecular Agriculture and Bioenergy
- Shanxi Agricultural University
- Taigu 030801
- China
| | - Wei Hang
- Institute of Molecular Agriculture and Bioenergy
- Shanxi Agricultural University
- Taigu 030801
- China
| | - Xiaoli Zhu
- Institute of Molecular Agriculture and Bioenergy
- Shanxi Agricultural University
- Taigu 030801
- China
| | - Yubin Zheng
- Shandong Jinjing Biotechnology Co
- Ltd
- Weifang 261000
- China
| | - Baosheng Ge
- Center for Bioengineering and Biotechnology
- China University of Petroleum (East China)
- Qingdao 266580
- China
| | - Runzhi Li
- Institute of Molecular Agriculture and Bioenergy
- Shanxi Agricultural University
- Taigu 030801
- China
| | - Hongli Cui
- Institute of Molecular Agriculture and Bioenergy
- Shanxi Agricultural University
- Taigu 030801
- China
- Institute of Functional Food
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10
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Zhang G, Cui R, Kang Y, Qi C, Ji X, Zhang T, Guo Q, Cui H, Shi G. Testosterone propionate activated the Nrf2-ARE pathway in ageing rats and ameliorated the age-related changes in liver. Sci Rep 2019; 9:18619. [PMID: 31819135 PMCID: PMC6901587 DOI: 10.1038/s41598-019-55148-0] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2019] [Accepted: 11/25/2019] [Indexed: 12/16/2022] Open
Abstract
The present study aimed to evaluate the protective efficacy of testosterone propionate (TP) on age-related liver changes via activation of the nuclear factor erythroid 2-related factor 2-antioxidant response element (Nrf2-ARE) pathway in aged rats. Aged rats received subcutaneous injections of TP (2 mg/kg/d, 84 days). Oxidative stress parameters and the expression levels of signal transducer and activator of transcription 5b (STAT5b), Kelch-like ECH associating protein-1 (Keap1), Nrf2, haem oxygenase-1 (HO-1) and NAD(P)H: quinone oxidoreductase-1 (NQO1) in liver tissues were examined to check whether the Nrf2-ARE pathway was involved in the age-related changes in liver. Our results showed that TP supplementation alleviated liver morphology, liver function and liver fibrosis; improved oxidative stress parameters; and increased the expression of STAT5b, Nrf2, HO-1 and NQO-1 and decreased the expression of Keap1 in the liver tissues of aged rats. These results suggested that TP increased the expression of STAT5b, and then activated the Nrf2-ARE pathway and promoted antioxidant mechanisms in aged rats. These findings may provide new therapeutic uses for TP in patients with age-related liver changes.
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Affiliation(s)
- Guoliang Zhang
- Department of Neurobiology, Hebei Medical University, Shijiazhuang, 050017, P.R. China.,Department of Human Anatomy, Hebei Medical University, Shijiazhuang, 050017, P.R. China
| | - Rui Cui
- Department of Human Anatomy, Hebei Medical University, Shijiazhuang, 050017, P.R. China
| | - Yunxiao Kang
- Department of Neurobiology, Hebei Medical University, Shijiazhuang, 050017, P.R. China
| | - Chunxiao Qi
- Department of Human Anatomy, Hebei Medical University, Shijiazhuang, 050017, P.R. China
| | - Xiaoming Ji
- Department of Neurobiology, Hebei Medical University, Shijiazhuang, 050017, P.R. China
| | - Tianyun Zhang
- Department of Neurobiology, Hebei Medical University, Shijiazhuang, 050017, P.R. China
| | - Qiqing Guo
- Department of Neurobiology, Hebei Medical University, Shijiazhuang, 050017, P.R. China
| | - Huixian Cui
- Department of Human Anatomy, Hebei Medical University, Shijiazhuang, 050017, P.R. China.,Neuroscience Research Center, Hebei Medical University, Shijiazhuang, 050017, P.R. China
| | - Geming Shi
- Department of Neurobiology, Hebei Medical University, Shijiazhuang, 050017, P.R. China. .,Neuroscience Research Center, Hebei Medical University, Shijiazhuang, 050017, P.R. China. .,Hebei Key Laboratory of Forensic Medicine, Department of Forensic Medicine, Hebei Medical University, Shijiazhuang, 050017, P.R. China.
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11
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Xia JM, Hu XM, Huang CH, Yu LB, Xu RF, Tang XX, Lin DH. Metabolic profiling of cold adaptation of a deep-sea psychrotolerant Microbacterium sediminis to prolonged low temperature under high hydrostatic pressure. Appl Microbiol Biotechnol 2019; 104:277-289. [PMID: 31728583 DOI: 10.1007/s00253-019-10134-4] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2019] [Revised: 08/30/2019] [Accepted: 09/08/2019] [Indexed: 12/01/2022]
Abstract
The most wide-spread "hostile" environmental factor for marine microorganisms is low temperature, which is usually accompanied by high hydrostatic pressure (HHP). Metabolic mechanisms of marine microorganisms adapting to prolonged low temperature under HHP remain to be clarified. To reveal the underlying metabolic mechanisms, we performed NMR-based metabolomic analysis of aqueous extracts derived from a psychrotolerant Microbacterium sediminis YLB-01, which was isolated from deep-sea sediment and possess great biotechnology potentials. The YLB-01 cells were firstly cultivated at the optimal condition (28 °C, 0.1 MPa) for either 18 h (logarithmic phase) or 24 h (stationary phase), then continually cultivated at either 28 °C or 4 °C under HHP (30 MPa) for 7 days. The cells cultivated at low temperature, which experienced cold stress, were distinctly distinguished from those at normal temperature. Cold stress primarily induced metabolic changes in amino acid metabolism and carbohydrate metabolism. Furthermore, the logarithmic and stationary phase cells cultivated at low temperature exhibited distinct metabolic discrimination, which was mostly reflected in the significantly disturbed carbohydrate metabolism. The logarithmic phase cells displayed suppressed TCA cycle, while the stationary phase cells showed decreased pyruvate and increased lactate. In addition, we performed transcriptome analysis for the stationary phase cells to support the metabolomic analysis. Our results suggest that the cold adaptation of the psychrotroph YLB-01 is closely associated with profoundly altered amino acid metabolism and carbohydrate metabolism. Our work provides a mechanistic understanding of the metabolic adaptation of marine psychrotrophs to prolonged low temperature under HHP.
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Affiliation(s)
- Jin-Mei Xia
- State Key Laboratory Breeding Base of Marine Genetic Resources, Key Laboratory of Marine Genetic Resources, Fujian Key Laboratory of Marine Genetic Resources, Third Institute of Oceanography, Ministry of Natural Resources, 184 Daxue Road, Xiamen, 361005, China
| | - Xiao-Min Hu
- College of Chemistry and Chemical Engineering, Key Laboratory for Chemical Biology of Fujian Province, MOE Key Laboratory of Spectrochemical Analysis & Instrumentation, Xiamen University, Xiamen, 361005, China
| | - Cai-Hua Huang
- Research and Communication Center of Exercise and Health, Xiamen University of Technology, Xiamen, 361024, China
| | - Li-Bo Yu
- China Ocean Sample Respository (Biology), 184 Daxue Road, Xiamen, 361005, China
| | - Ru-Fang Xu
- China Ocean Sample Respository (Biology), 184 Daxue Road, Xiamen, 361005, China
| | - Xi-Xiang Tang
- China Ocean Sample Respository (Biology), 184 Daxue Road, Xiamen, 361005, China.
| | - Dong-Hai Lin
- College of Chemistry and Chemical Engineering, Key Laboratory for Chemical Biology of Fujian Province, MOE Key Laboratory of Spectrochemical Analysis & Instrumentation, Xiamen University, Xiamen, 361005, China.
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Xie CL, Chen R, Yang S, Xia JM, Zhang GY, Chen CH, Zhang Y, Yang XW. Nesteretal A, A Novel Class of Cage-Like Polyketide from Marine-Derived Actinomycete Nesterenkonia halobia. Org Lett 2019; 21:8174-8177. [DOI: 10.1021/acs.orglett.9b02634] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Chun-Lan Xie
- Key Laboratory of Marine Biogenetic Resources, Third Institute of Oceanography, Ministry of Natural Resources, 184 Daxue Road, Xiamen, Fujian 361005, China
- School of Pharmaceutical Sciences, Xiamen University, South Xiangan Road, Xiamen, Fujian 361102, China
| | - Renzhi Chen
- Department of Chemistry and Key Laboratory of Chemical Biology of Fujian Province, iChEM, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, Fujian 361005, China
| | - Sihan Yang
- Department of Chemistry and Key Laboratory of Chemical Biology of Fujian Province, iChEM, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, Fujian 361005, China
| | - Jin-Mei Xia
- Key Laboratory of Marine Biogenetic Resources, Third Institute of Oceanography, Ministry of Natural Resources, 184 Daxue Road, Xiamen, Fujian 361005, China
| | - Gai-Yun Zhang
- Key Laboratory of Marine Biogenetic Resources, Third Institute of Oceanography, Ministry of Natural Resources, 184 Daxue Road, Xiamen, Fujian 361005, China
| | - Chao-Hong Chen
- Key Laboratory of Marine Biogenetic Resources, Third Institute of Oceanography, Ministry of Natural Resources, 184 Daxue Road, Xiamen, Fujian 361005, China
| | - Yandong Zhang
- Department of Chemistry and Key Laboratory of Chemical Biology of Fujian Province, iChEM, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, Fujian 361005, China
| | - Xian-Wen Yang
- Key Laboratory of Marine Biogenetic Resources, Third Institute of Oceanography, Ministry of Natural Resources, 184 Daxue Road, Xiamen, Fujian 361005, China
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Almeida EL, Carrillo Rincón AF, Jackson SA, Dobson ADW. Comparative Genomics of Marine Sponge-Derived Streptomyces spp. Isolates SM17 and SM18 With Their Closest Terrestrial Relatives Provides Novel Insights Into Environmental Niche Adaptations and Secondary Metabolite Biosynthesis Potential. Front Microbiol 2019; 10:1713. [PMID: 31404169 PMCID: PMC6676996 DOI: 10.3389/fmicb.2019.01713] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2019] [Accepted: 07/11/2019] [Indexed: 12/28/2022] Open
Abstract
The emergence of antibiotic resistant microorganisms has led to an increased need for the discovery and development of novel antimicrobial compounds. Frequent rediscovery of the same natural products (NPs) continues to decrease the likelihood of the discovery of new compounds from soil bacteria. Thus, efforts have shifted toward investigating microorganisms and their secondary metabolite biosynthesis potential, from diverse niche environments, such as those isolated from marine sponges. Here we investigated at the genomic level two Streptomyces spp. strains, namely SM17 and SM18, isolated from the marine sponge Haliclona simulans, with previously reported antimicrobial activity against clinically relevant pathogens; using single molecule real-time (SMRT) sequencing. We performed a series of comparative genomic analyses on SM17 and SM18 with their closest terrestrial relatives, namely S. albus J1074 and S. pratensis ATCC 33331 respectively; in an effort to provide further insights into potential environmental niche adaptations (ENAs) of marine sponge-associated Streptomyces, and on how these adaptations might be linked to their secondary metabolite biosynthesis potential. Prediction of secondary metabolite biosynthetic gene clusters (smBGCs) indicated that, even though the marine isolates are closely related to their terrestrial counterparts at a genomic level; they potentially produce different compounds. SM17 and SM18 displayed a better ability to grow in high salinity medium when compared to their terrestrial counterparts, and further analysis of their genomes indicated that they possess a pool of 29 potential ENA genes that are absent in S. albus J1074 and S. pratensis ATCC 33331. This ENA gene pool included functional categories of genes that are likely to be related to niche adaptations and which could be grouped based on potential biological functions such as osmotic stress, defense; transcriptional regulation; symbiotic interactions; antimicrobial compound production and resistance; ABC transporters; together with horizontal gene transfer and defense-related features.
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Affiliation(s)
| | | | - Stephen A. Jackson
- School of Microbiology, University College Cork, Cork, Ireland
- Environmental Research Institute, University College Cork, Cork, Ireland
| | - Alan D. W. Dobson
- School of Microbiology, University College Cork, Cork, Ireland
- Environmental Research Institute, University College Cork, Cork, Ireland
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