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Zainuddin MS, Bhuvanendran S, Radhakrishnan AK, Azman AS. Alzheimer's Disease-Related Proteins Targeted by Secondary Metabolite Compounds from Streptomyces: A Scoping Review. J Alzheimers Dis Rep 2023; 7:1335-1350. [PMID: 38143777 PMCID: PMC10741902 DOI: 10.3233/adr-230065] [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: 07/12/2023] [Accepted: 10/16/2023] [Indexed: 12/26/2023] Open
Abstract
Background Alzheimer's disease (AD) is a neurodegenerative disease that is characterized as rapid and progressive cognitive decline affecting 26 million people worldwide. Although immunotherapies are ideal, its clinical safety and effectiveness are controversial, hence, treatments are still reliant on symptomatic medications. Concurrently, the Streptomyces genus has attracted attention given its pharmaceutically beneficial secondary metabolites to treat neurodegenerative diseases. Objective To present secondary metabolites from Streptomyces sp. with regulatory effects on proteins and identified prospective target proteins for AD treatment. Methods Research articles published between 2010 and 2021 were collected from five databases and 83 relevant research articles were identified. Post-screening, only 12 research articles on AD-related proteins were selected for further review. Bioinformatics analyses were performed through the Search Tool for the Retrieval of Interacting Genes/Proteins (STRING) network, PANTHER Go-Slim classification system (PANTHER17.0), and Kyoto Encyclopedia of Genes and Genomes (KEGG) Mapper. Results A total of 20 target proteins were identified from the 12 shortlisted articles. Amyloid-β, BACE1, Nrf-2, Beclin-1, and ATG5 were identified as the potential target proteins, given their role in initiating AD, mitigating neuroinflammation, and autophagy. Besides, 10 compounds from Streptomyces sp., including rapamycin, alborixin, enterocin, bonnevillamides D and E, caniferolide A, anhydroexfoliamycin, rhizolutin, streptocyclinone A and B, were identified to exhibit considerable regulatory effects on these target proteins. Conclusions The review highlights several prospective target proteins that can be regulated through treatments with Streptomyces sp. compounds to prevent AD's early stages and progression. Further identification of Streptomyces sp. compounds with potential anti-AD properties is recommended.
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Affiliation(s)
| | | | - Ammu K. Radhakrishnan
- Jeffery Cheah School of Medicine and Health Science, Monash University Malaysia, Bandar Sunway, Malaysia
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Koser L, Bach T. Total Synthesis of (-)-5-Deoxyenterocin and Attempted Late-Stage Functionalization Reactions. Chemistry 2023; 29:e202301996. [PMID: 37452638 DOI: 10.1002/chem.202301996] [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: 06/23/2023] [Revised: 07/14/2023] [Accepted: 07/14/2023] [Indexed: 07/18/2023]
Abstract
The first total synthesis of (-)-5-deoxyenterocin has been accomplished starting from pentane-1,3,5-triol (16 steps in the longest linear sequence, 0.2 % overall yield). (-)-Menthone served as the source of chirality to distinguish the enantiotopic hydroxymethyl groups of the substrate. Key steps of the synthesis include two aldol reactions to either end of the C5 -skeleton, a diastereoselective hydroxylation reaction and a biomimetic twofold intramolecular aldol reaction as the final step. Although this step suffered from geometrical constraints and was low yielding (10 %), enough synthetic material could be secured to substantiate the relative and absolute configuration of the natural product. Additional experiments were directed toward a C-H functionalization at carbon atom C5. Despite the fact that several protocols could be successfully applied to (3aR)-(+)-sclareolide as model substrate, (-)-5-deoxyenterocin withstood any selective functionalization.
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Affiliation(s)
- Lilla Koser
- Department Chemie and Catalysis Research Center (CRC), School of Natural Sciences, Technische Universität München, Lichtenbergstraße 4, 85747, Garching, Germany
| | - Thorsten Bach
- Department Chemie and Catalysis Research Center (CRC), School of Natural Sciences, Technische Universität München, Lichtenbergstraße 4, 85747, Garching, Germany
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Anh CV, Kang JS, Yang JW, Kwon JH, Heo CS, Lee HS, Park CH, Shin HJ. Sesquiterpenes from Streptomyces qinglanensis and Their Cytotoxic Activity. Mar Drugs 2023; 21:361. [PMID: 37367686 DOI: 10.3390/md21060361] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2023] [Revised: 06/11/2023] [Accepted: 06/14/2023] [Indexed: 06/28/2023] Open
Abstract
Nine sesquiterpenes, including eight pentalenenes (1-8) and one bolinane derivative (9), were isolated from the culture broth of a marine-derived actinobacterium Streptomyces qinglanensis 213DD-006. Among them, 1, 4, 7, and 9 were new compounds. Their planar structures were determined by spectroscopic methods (HRMS, 1D, and 2D NMR), and the absolute configuration was established by biosynthesis consideration and electronic-circular-dichroism (ECD) calculations. All the isolated compounds were screened for their cytotoxicity against six solid and seven blood cancer cell lines. Compounds 4-6 and 8 showed a moderate activity against all of the tested solid cell lines, with GI50 values ranging from 1.97 to 3.46 µM.
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Affiliation(s)
- Cao Van Anh
- Marine Natural Products Chemistry Laboratory, Korea Institute of Ocean Science and Technology, 385 Haeyang-ro, Yeongdo-gu, Busan 49111, Republic of Korea
| | - Jong Soon Kang
- Laboratory Animal Resource Center, Korea Research Institute of Bioscience and Biotechnology, 30 Yeongudanjiro, Cheongju 28116, Republic of Korea
| | - Jeong-Wook Yang
- Laboratory Animal Resource Center, Korea Research Institute of Bioscience and Biotechnology, 30 Yeongudanjiro, Cheongju 28116, Republic of Korea
| | - Joo-Hee Kwon
- Laboratory Animal Resource Center, Korea Research Institute of Bioscience and Biotechnology, 30 Yeongudanjiro, Cheongju 28116, Republic of Korea
| | - Chang-Su Heo
- Marine Natural Products Chemistry Laboratory, Korea Institute of Ocean Science and Technology, 385 Haeyang-ro, Yeongdo-gu, Busan 49111, Republic of Korea
- Department of Marine Biotechnology, University of Science and Technology (UST), 217 Gajungro, Yuseong-gu, Daejeon 34113, Republic of Korea
| | - Hwa-Sun Lee
- Marine Natural Products Chemistry Laboratory, Korea Institute of Ocean Science and Technology, 385 Haeyang-ro, Yeongdo-gu, Busan 49111, Republic of Korea
| | - Chan Hong Park
- Dokdo Research Center, Korea Institute of Ocean Science and Technology, 48 Haeyanggwahak-gil, Jukbyeon-myeon, Uljin-gun 767-813, Gyeongsangbuk-do, Republic of Korea
| | - Hee Jae Shin
- Marine Natural Products Chemistry Laboratory, Korea Institute of Ocean Science and Technology, 385 Haeyang-ro, Yeongdo-gu, Busan 49111, Republic of Korea
- Department of Marine Biotechnology, University of Science and Technology (UST), 217 Gajungro, Yuseong-gu, Daejeon 34113, Republic of Korea
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Koser L, Grassin C, Merten C, Bach T. Absolute Configuration of the Polyketide Natural Product (-)-Enterocin. Org Lett 2022; 24:6903-6907. [PMID: 36130083 DOI: 10.1021/acs.orglett.2c02525] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The absolute configuration of the polyketide natural product (-)-enterocin was established by two independent approaches. In the first approach, synthetic enterocin with a defined configuration was compared to the natural product. While identical in all scalar properties, the compound displayed an opposite specific rotation and a different chiral HPLC retention time when compared with (-)-enterocin. In a second approach, the vibrational circular dichroism (VCD) of the natural product was measured and shown to be opposite to the calculated VCD of its enantiomer.
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Affiliation(s)
- Lilla Koser
- TUM School of Natural Sciences, Department Chemie and Catalysis Research Center (CRC), Technische Universität München, 85747 Garching, Germany
| | - Corentin Grassin
- Organische Chemie II, Fakultät für Chemie und Biochemie, Ruhr-Universität Bochum, Universitätsstraße 150, 44801 Bochum, Germany
| | - Christian Merten
- Organische Chemie II, Fakultät für Chemie und Biochemie, Ruhr-Universität Bochum, Universitätsstraße 150, 44801 Bochum, Germany
| | - Thorsten Bach
- TUM School of Natural Sciences, Department Chemie and Catalysis Research Center (CRC), Technische Universität München, 85747 Garching, Germany
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Cowled MS, Vuong D, Crombie A, Lacey E, Karuso P, Piggott AM. The chemical gymnastics of enterocin: evidence for stereodivergence in Nature. Org Biomol Chem 2020; 18:5879-5890. [PMID: 32672321 DOI: 10.1039/d0ob01099e] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/25/2024]
Abstract
Stereodivergence in Nature encapsulates both enzymatic (biosynthetic) and non-enzymatic (chemical) diversification of natural product scaffolds arising from a single biosynthetic pathway. Herein, we report a fascinating example of stereodivergence for the bacterial polyketide enterocin, which we observed to undergo a series of facile skeletal rearrangements in solution, leading to four distinct isomeric structures. The final distribution of the four isomers was found to be highly sensitive to the conditions used, including solvent, temperature and pH. In this study, we have investigated the kinetics of these isomeric conversions, and using a combination of DFT and thermochemical calculations, were able to establish a mechanism detailing a concerted rearrangement and an unusual "gymnastic" sequence of pseudo-chair-boat conformational interconversions. In addition to these kinetic and mechanistic studies, we also performed a semisynthetic study aimed at stabilising the enterocin scaffold. In total, seven analogues of enterocin were synthesised and investigated for their stability and in vitro activity against a panel of bacteria, fungi, plants and mammalian cells.
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Affiliation(s)
- Michael S Cowled
- Department of Molecular Sciences, Macquarie University, NSW 2109, Australia.
| | - Daniel Vuong
- Microbial Screening Technologies Pty. Ltd, Smithfield, NSW 2164, Australia
| | - Andrew Crombie
- Microbial Screening Technologies Pty. Ltd, Smithfield, NSW 2164, Australia
| | - Ernest Lacey
- Department of Molecular Sciences, Macquarie University, NSW 2109, Australia. and Microbial Screening Technologies Pty. Ltd, Smithfield, NSW 2164, Australia
| | - Peter Karuso
- Department of Molecular Sciences, Macquarie University, NSW 2109, Australia.
| | - Andrew M Piggott
- Department of Molecular Sciences, Macquarie University, NSW 2109, Australia.
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Salim AA, Samarasekera K, Khalil ZG, Capon RJ. Exploring Natural Product Artifacts: The Polyketide Enterocin Warms to a Ballet of Isomers. Org Lett 2020; 22:4828-4832. [PMID: 32511935 DOI: 10.1021/acs.orglett.0c01629] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The polyketide enterocin is responsive to environmental stimuli, where mild heating promotes an equilibrium mixture of the isomeric acetals enterocins B and C, which subsequently undergo pseudo-chair-boat inversion to enterocin D. When exposed to aqueous base, enterocin is converted to the isomeric Michael acceptor enterocin F. These studies demonstrate that knowledge of environmental stimuli and associated artifacts is critical to understanding the chemical and ecological properties of enterocins and other classes of natural products.
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Affiliation(s)
- Angela A Salim
- Division of Chemistry and Structural Biology, Institute for Molecular Bioscience, The University of Queensland, St. Lucia, Queensland 4072, Australia
| | - Kaumadi Samarasekera
- Division of Chemistry and Structural Biology, Institute for Molecular Bioscience, The University of Queensland, St. Lucia, Queensland 4072, Australia
| | - Zeinab G Khalil
- Division of Chemistry and Structural Biology, Institute for Molecular Bioscience, The University of Queensland, St. Lucia, Queensland 4072, Australia
| | - Robert J Capon
- Division of Chemistry and Structural Biology, Institute for Molecular Bioscience, The University of Queensland, St. Lucia, Queensland 4072, Australia
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Wang J, Zhang R, Chen X, Sun X, Yan Y, Shen X, Yuan Q. Biosynthesis of aromatic polyketides in microorganisms using type II polyketide synthases. Microb Cell Fact 2020; 19:110. [PMID: 32448179 PMCID: PMC7247197 DOI: 10.1186/s12934-020-01367-4] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2020] [Accepted: 05/15/2020] [Indexed: 12/13/2022] Open
Abstract
Aromatic polyketides have attractive biological activities and pharmacological properties. Different from other polyketides, aromatic polyketides are characterized by their polycyclic aromatic structure. The biosynthesis of aromatic polyketides is usually accomplished by the type II polyketide synthases (PKSs), which produce highly diverse polyketide chains by sequential condensation of the starter units with extender units, followed by reduction, cyclization, aromatization and tailoring reactions. Recently, significant progress has been made in characterization and engineering of type II PKSs to produce novel products and improve product titers. In this review, we briefly summarize the architectural organizations and genetic contributions of PKS genes to provide insight into the biosynthetic process. We then review the most recent progress in engineered biosynthesis of aromatic polyketides, with emphasis on generating novel molecular structures. We also discuss the current challenges and future perspectives in the rational engineering of type II PKSs for large scale production of aromatic polyketides.
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Affiliation(s)
- Jia Wang
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, 15 Beisanhuan East Road, Chaoyang District, Beijing, 100029, China
| | - Ruihua Zhang
- School of Chemical, Materials and Biomedical Engineering, College of Engineering, University of Georgia, Athens, GA, 30602, USA
| | - Xin Chen
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, 15 Beisanhuan East Road, Chaoyang District, Beijing, 100029, China
| | - Xinxiao Sun
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, 15 Beisanhuan East Road, Chaoyang District, Beijing, 100029, China
| | - Yajun Yan
- School of Chemical, Materials and Biomedical Engineering, College of Engineering, University of Georgia, Athens, GA, 30602, USA
| | - Xiaolin Shen
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, 15 Beisanhuan East Road, Chaoyang District, Beijing, 100029, China.
| | - Qipeng Yuan
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, 15 Beisanhuan East Road, Chaoyang District, Beijing, 100029, China.
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Xu D, Tian E, Kong F, Hong K. Bioactive Molecules from Mangrove Streptomyces qinglanensis 172205. Mar Drugs 2020; 18:md18050255. [PMID: 32414163 PMCID: PMC7281499 DOI: 10.3390/md18050255] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2020] [Revised: 05/12/2020] [Accepted: 05/12/2020] [Indexed: 12/20/2022] Open
Abstract
Five new compounds 15R-17,18-dehydroxantholipin (1), (3E,5E,7E)-3-methyldeca-3,5,7-triene-2,9-dione (2) and qinlactone A–C (3–5) were identified from mangrove Streptomyces qinglanensis 172205 with “genetic dereplication,” which deleted the highly expressed secondary metabolite-enterocin biosynthetic gene cluster. The chemical structures were established by spectroscopic methods, and the absolute configurations were determined by electronic circular dichroism (ECD). Compound 1 exhibited strong anti-microbial and antiproliferative bioactivities, while compounds 2–4 showed weak antiproliferative activities.
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Affiliation(s)
- Dongbo Xu
- Key Laboratory of Combinatorial Biosynthesis and Drug Discovery, Ministry of Education, School of Pharmaceutical Sciences, Wuhan University, Wuhan 430071, China; (D.X.); (E.T.)
| | - Erli Tian
- Key Laboratory of Combinatorial Biosynthesis and Drug Discovery, Ministry of Education, School of Pharmaceutical Sciences, Wuhan University, Wuhan 430071, China; (D.X.); (E.T.)
| | - Fandong Kong
- Institute of Tropical Bioscience and Biotechnology, Chinese Academy of Tropical Agricultura Sciences, Haikou 571101, China;
| | - Kui Hong
- Key Laboratory of Combinatorial Biosynthesis and Drug Discovery, Ministry of Education, School of Pharmaceutical Sciences, Wuhan University, Wuhan 430071, China; (D.X.); (E.T.)
- Correspondence: ; Tel.: +86-27-6875-2442
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Zheng L, Jiang X, Zhang Q, Zhu Y, Zhang H, Zhang W, Saurav K, Liu J, Zhang C. Discovery and Biosynthesis of Neoenterocins Indicate a Skeleton Rearrangement of Enterocin. Org Lett 2019; 21:9066-9070. [PMID: 31657934 DOI: 10.1021/acs.orglett.9b03460] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Liujuan Zheng
- Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangdong Key Laboratory of Marine Materia Medica, RNAM Center for Marine Microbiology, Institutions of South China Sea Ecology and Environmental Engineering, South China Sea Institute of Oceanology, Chinese Academy of Sciences, 164 West Xingang Road, Guangzhou 510301, China
- University of Chinese Academy of Sciences, 19 Yuquan Road, Beijing 100049, China
| | - Xiaodong Jiang
- Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangdong Key Laboratory of Marine Materia Medica, RNAM Center for Marine Microbiology, Institutions of South China Sea Ecology and Environmental Engineering, South China Sea Institute of Oceanology, Chinese Academy of Sciences, 164 West Xingang Road, Guangzhou 510301, China
- University of Chinese Academy of Sciences, 19 Yuquan Road, Beijing 100049, China
| | - Qingbo Zhang
- Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangdong Key Laboratory of Marine Materia Medica, RNAM Center for Marine Microbiology, Institutions of South China Sea Ecology and Environmental Engineering, South China Sea Institute of Oceanology, Chinese Academy of Sciences, 164 West Xingang Road, Guangzhou 510301, China
| | - Yiguang Zhu
- Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangdong Key Laboratory of Marine Materia Medica, RNAM Center for Marine Microbiology, Institutions of South China Sea Ecology and Environmental Engineering, South China Sea Institute of Oceanology, Chinese Academy of Sciences, 164 West Xingang Road, Guangzhou 510301, China
| | - Haibo Zhang
- Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangdong Key Laboratory of Marine Materia Medica, RNAM Center for Marine Microbiology, Institutions of South China Sea Ecology and Environmental Engineering, South China Sea Institute of Oceanology, Chinese Academy of Sciences, 164 West Xingang Road, Guangzhou 510301, China
| | - Wenjun Zhang
- Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangdong Key Laboratory of Marine Materia Medica, RNAM Center for Marine Microbiology, Institutions of South China Sea Ecology and Environmental Engineering, South China Sea Institute of Oceanology, Chinese Academy of Sciences, 164 West Xingang Road, Guangzhou 510301, China
| | - Kumar Saurav
- Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangdong Key Laboratory of Marine Materia Medica, RNAM Center for Marine Microbiology, Institutions of South China Sea Ecology and Environmental Engineering, South China Sea Institute of Oceanology, Chinese Academy of Sciences, 164 West Xingang Road, Guangzhou 510301, China
| | - Jinsong Liu
- Key Laboratory of Respiratory Disease, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China
| | - Changsheng Zhang
- Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangdong Key Laboratory of Marine Materia Medica, RNAM Center for Marine Microbiology, Institutions of South China Sea Ecology and Environmental Engineering, South China Sea Institute of Oceanology, Chinese Academy of Sciences, 164 West Xingang Road, Guangzhou 510301, China
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