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Guo ZK, Wang YC, Tan YZ, Abulaizi A, Xiong ZJ, Zhang SQ, Yang Y, Yang LY, Shi J. Nagimycins A and B, Antibacterial Ansamycin-Related Macrolactams from Streptomyces sp. NA07423. Org Lett 2023; 25:4203-4207. [PMID: 37232514 DOI: 10.1021/acs.orglett.3c01539] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Chemical investigation of Streptomyces sp. NA07423 led to the discovery of two unreported macrolactams, nagimycins A (1) and B (2). Their structures were elucidated by NMR, HRESIMS, X-ray crystallography, and comparison of experimental and theoretical ECD spectra. The nagimycins have a unique butenolide moiety rarely found in ansamycin antibiotics. Genome analysis revealed the putative biosynthetic gene cluster for nagimycins, and a likely biosynthetic pathway was proposed. Notably, compounds 1 and 2 exhibited potent antibacterial activity against two pathogenic Xanthomonas bacteria.
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Affiliation(s)
- Zhi Kai Guo
- Hainan Key Laboratory of Tropical Microbe Resources, Institute of Tropical Bioscience and Biotechnology, Chinese Academy of Tropical Agricultural Sciences & Hainan Institute for Tropical Agricultural Resources, Chinese Academy of Tropical Agricultural Sciences, Haikou 571101, China
| | - Yong Chao Wang
- State Key Laboratory of Pharmaceutical Biotechnology, Institute of Functional Biomolecules, Chemistry and Biomedicine Innovation Center (ChemBIC), School of Life Sciences, Nanjing University, Nanjing 210023, China
| | - Ying Zi Tan
- State Key Laboratory of Pharmaceutical Biotechnology, Institute of Functional Biomolecules, Chemistry and Biomedicine Innovation Center (ChemBIC), School of Life Sciences, Nanjing University, Nanjing 210023, China
| | - Ailiman Abulaizi
- Hainan Key Laboratory of Tropical Microbe Resources, Institute of Tropical Bioscience and Biotechnology, Chinese Academy of Tropical Agricultural Sciences & Hainan Institute for Tropical Agricultural Resources, Chinese Academy of Tropical Agricultural Sciences, Haikou 571101, China
- State Key Laboratory of Pharmaceutical Biotechnology, Institute of Functional Biomolecules, Chemistry and Biomedicine Innovation Center (ChemBIC), School of Life Sciences, Nanjing University, Nanjing 210023, China
| | - Zi Jun Xiong
- Hainan Key Laboratory of Tropical Microbe Resources, Institute of Tropical Bioscience and Biotechnology, Chinese Academy of Tropical Agricultural Sciences & Hainan Institute for Tropical Agricultural Resources, Chinese Academy of Tropical Agricultural Sciences, Haikou 571101, China
| | - Shi Qing Zhang
- Hainan Key Laboratory of Tropical Microbe Resources, Institute of Tropical Bioscience and Biotechnology, Chinese Academy of Tropical Agricultural Sciences & Hainan Institute for Tropical Agricultural Resources, Chinese Academy of Tropical Agricultural Sciences, Haikou 571101, China
| | - Yang Yang
- Environment and Plant Protection Institute, Chinese Academy of Tropical Agricultural Sciences & National Collection of Microbial Resource for Fertilizer (Hainan), Haikou 571101, China
| | - La Ying Yang
- Environment and Plant Protection Institute, Chinese Academy of Tropical Agricultural Sciences & National Collection of Microbial Resource for Fertilizer (Hainan), Haikou 571101, China
| | - Jing Shi
- State Key Laboratory of Pharmaceutical Biotechnology, Institute of Functional Biomolecules, Chemistry and Biomedicine Innovation Center (ChemBIC), School of Life Sciences, Nanjing University, Nanjing 210023, China
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Shi L, Wu Z, Zhang Y, Zhang Z, Fang W, Wang Y, Wan Z, Wang K, Ke S. Herbicidal Secondary Metabolites from Actinomycetes: Structure Diversity, Modes of Action, and Their Roles in the Development of Herbicides. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2020; 68:17-32. [PMID: 31809036 DOI: 10.1021/acs.jafc.9b06126] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Weeds had caused significant loss for crop production in the process of agriculture. Herbicides have played an important role in securing crop production. However, the high reliance on herbicides has led to environmental issues as well as the evolution of herbicide resistance. Thus, there is an urgent need for new herbicides with safer toxicological profiles and novel modes of action. Actinomycetes produce very diverse bioactive compounds, of which some show potent biopesticidal activity. The herbicidal secondary metabolites from actinomycetes can be classified into several groups, such as amino acids, peptides, nucleosides, macrolides, lactones, amide, amines, etc., some of which have been successfully developed as commercial herbicides. The structure diversity and evolved biological activity of secondary metabolites from actinomycetes can offer opportunities for the development of both directly used bioherbicides and synthetic herbicides with new target sites, and thus, this review focuses on the structure, herbicidal activity, and modes of action of secondary metabolites from actinomycetes.
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Affiliation(s)
- Liqiao Shi
- Hubei Biopesticide Engineering Research Centre , Hubei Academy of Agricultural Sciences , Wuhan , Hubei 430064 , People's Republic of China
| | - Zhaoyuan Wu
- Hubei Biopesticide Engineering Research Centre , Hubei Academy of Agricultural Sciences , Wuhan , Hubei 430064 , People's Republic of China
| | - Yani Zhang
- Hubei Biopesticide Engineering Research Centre , Hubei Academy of Agricultural Sciences , Wuhan , Hubei 430064 , People's Republic of China
| | - Zhigang Zhang
- Hubei Biopesticide Engineering Research Centre , Hubei Academy of Agricultural Sciences , Wuhan , Hubei 430064 , People's Republic of China
| | - Wei Fang
- Hubei Biopesticide Engineering Research Centre , Hubei Academy of Agricultural Sciences , Wuhan , Hubei 430064 , People's Republic of China
| | - Yueying Wang
- Hubei Biopesticide Engineering Research Centre , Hubei Academy of Agricultural Sciences , Wuhan , Hubei 430064 , People's Republic of China
| | - Zhongyi Wan
- Hubei Biopesticide Engineering Research Centre , Hubei Academy of Agricultural Sciences , Wuhan , Hubei 430064 , People's Republic of China
| | - Kaimei Wang
- Hubei Biopesticide Engineering Research Centre , Hubei Academy of Agricultural Sciences , Wuhan , Hubei 430064 , People's Republic of China
| | - Shaoyong Ke
- Hubei Biopesticide Engineering Research Centre , Hubei Academy of Agricultural Sciences , Wuhan , Hubei 430064 , People's Republic of China
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Martín JF, Ramos A, Liras P. Regulation of Geldanamycin Biosynthesis by Cluster-Situated Transcription Factors and the Master Regulator PhoP. Antibiotics (Basel) 2019; 8:antibiotics8030087. [PMID: 31262015 PMCID: PMC6784220 DOI: 10.3390/antibiotics8030087] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2019] [Revised: 06/25/2019] [Accepted: 06/29/2019] [Indexed: 11/16/2022] Open
Abstract
Geldanamycin and the closely related herbimycins A, B, and C are benzoquinone-type ansamycins with antitumoral activity. They are produced by Streptomyces hygroscopicus var. geldanus, Streptomyces lydicus and Streptomyces autolyticus among other Streptomyces strains. Geldanamycins interact with the Hsp-90 chaperone, a protein that has a key role in tumorigenesis of human cells. Geldanamycin is a polyketide antibiotic and the polyketide synthase contain seven modules organized in three geldanamycin synthases genes named gdmAI, gdmAII, and gdmAIII. The loading domain of GdmI activates AHBA, and also related hydroxybenzoic acid derivatives, forming geldanamycin analogues. Three regulatory genes, gdmRI, gdmRII, and gdmRIII were found associated with the geldanamycin gene cluster in S. hygroscopicus strains. GdmRI and GdmRII are LAL-type (large ATP binding regulators of the LuxR family) transcriptional regulators, while GdmRIII belongs to the TetR-family. All three are positive regulators of geldanamycin biosynthesis and are strictly required for expression of the geldanamycin polyketide synthases. In S. autolyticus the gdmRIII regulates geldanamycin biosynthesis and also expression of genes in the elaiophylin gene cluster, an unrelated macrodiolide antibiotic. The biosynthesis of geldanamycin is very sensitive to the inorganic phosphate concentration in the medium. This regulation is exerted through the two components system PhoR-PhoP. The phoRP genes of S. hygroscopicus are linked to phoU encoding a transcriptional modulator. The phoP gene was deleted in S. hygroscopicus var geldanus and the mutant was unable to grow in SPG medium unless supplemented with 5 mM phosphate. Also, the S. hygroscopicus pstS gene involved in the high affinity phosphate transport was cloned, and PhoP binding sequences (PHO boxes), were found upstream of phoU, phoRP, and pstS; the phoRP-phoU sequences were confirmed by EMSA and nuclease footprinting protection assays. The PhoP binding sequence consists of 11 nucleotide direct repeat units that are similar to those found in S. coelicolor Streptomyces avermitilis and other Streptomyces species. The available genetic information provides interesting tools for modification of the biosynthetic and regulatory mechanisms in order to increase geldanamycin production and to obtain new geldanamycin analogues with better antitumor properties.
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Affiliation(s)
- Juan F Martín
- Area de Microbiología, Departmento de Biología Molecular, Universidad de León, 24071 León, Spain.
| | - Angelina Ramos
- Instituto de Biotecnología (INBIOTEC). Av. Real 1, 24006 León, Spain
| | - Paloma Liras
- Area de Microbiología, Departmento de Biología Molecular, Universidad de León, 24071 León, Spain
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Buedenbender L, Robertson LP, Lucantoni L, Avery VM, Kurtböke Dİ, Carroll AR. HSQC-TOCSY Fingerprinting-Directed Discovery of Antiplasmodial Polyketides from the Marine Ascidian-Derived Streptomyces sp. (USC-16018). Mar Drugs 2018; 16:md16060189. [PMID: 29849004 PMCID: PMC6025042 DOI: 10.3390/md16060189] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2018] [Revised: 05/18/2018] [Accepted: 05/22/2018] [Indexed: 12/17/2022] Open
Abstract
Chemical investigations on the fermentation extract obtained from an ascidian-derived Streptomyces sp. (USC-16018) yielded a new ansamycin polyketide, herbimycin G (1), as well as a known macrocyclic polyketide, elaiophylin (2), and four known diketopiperazines (3–6). The structures of the compounds were elucidated based on 1D/2D NMR and MS data. The absolute configuration of 1 was established by comparison of experimental and predicted electronic circular dichroism (ECD) data. Antiplasmodial activities were tested for the natural products against chloroquine sensitive (3D7) and chloroquine resistant (Dd2) Plasmodium falciparum strains; the two polyketides (1–2) demonstrated an inhibition of >75% against both parasite strains and while 2 was highly cytotoxic, herbimycin G (1) showed no cytotoxicity and good predicted water solubility.
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Affiliation(s)
- Larissa Buedenbender
- Environmental Futures Research Institute, School of Environment and Science, Griffith University, Gold Coast Campus, QLD 4222, Australia.
| | - Luke P Robertson
- Environmental Futures Research Institute, School of Environment and Science, Griffith University, Gold Coast Campus, QLD 4222, Australia.
- Griffith Institute for Drug Discovery, Griffith University, Brisbane, QLD 4111, Australia.
| | - Leonardo Lucantoni
- Griffith Institute for Drug Discovery, Griffith University, Brisbane, QLD 4111, Australia.
| | - Vicky M Avery
- Griffith Institute for Drug Discovery, Griffith University, Brisbane, QLD 4111, Australia.
| | - D İpek Kurtböke
- GeneCology Research Centre, Faculty of Science, Health, Education and Engineering, University of the Sunshine Coast, Maroochydore, QLD 4558, Australia.
| | - Anthony R Carroll
- Environmental Futures Research Institute, School of Environment and Science, Griffith University, Gold Coast Campus, QLD 4222, Australia.
- Griffith Institute for Drug Discovery, Griffith University, Brisbane, QLD 4111, Australia.
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Zhou Y, Sun YB, He HW, Feng JT, Zhang X, Han LR. Optimization of medium compositions to improve a novel glycoprotein production by Streptomyces kanasenisi ZX01. AMB Express 2017; 7:6. [PMID: 28050846 PMCID: PMC5209317 DOI: 10.1186/s13568-016-0316-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2016] [Accepted: 12/20/2016] [Indexed: 11/27/2022] Open
Abstract
Streptomyces kanasenisi ZX01 was found to produce a novel glycoprotein GP-1 previously, which was secreted into medium and had significant activity against tobacco mosaic virus. However, the low production of GP-1 by strain ZX01 limited its further studies. In order to improve the yield of GP-1, a series of statistical experimental design methods were applied to optimize medium of strain ZX01 in this work. Millet medium was chosen to be the optimal original medium for optimization. Soluble starch and yeast extract were identified as the optimal carbon and nitrogen source using one-factor-at-a-time method. Response surface methodology was used to optimize medium compositions (soluble starch, yeast extract and inorganic salts). A higher yield of GP-1 was 601.33 µg/L after optimization. The optimal compositions of medium were: soluble starch 13.61 g/L, yeast extract 4.19 g/L, NaCl 3.54 g/L, CaCO3 0.28 g/L, millet, 10 g/L. The yield of GP-1 in a 5 L fermentor using optimized medium was 2.54 mg/L, which is much higher than the result of shake flask. This work will be helpful for the improvement of GP-1 production on a large scale and lay a foundation for developing it to be a novel anti-plant virus agent.
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Affiliation(s)
- Yong Zhou
- Research and Development Center of Biorational Pesticides, Northwest A & F University, Yangling, 712100 Shaanxi China
| | - Yu-Bo Sun
- Research and Development Center of Biorational Pesticides, Northwest A & F University, Yangling, 712100 Shaanxi China
| | - Hong-Wei He
- Research and Development Center of Biorational Pesticides, Northwest A & F University, Yangling, 712100 Shaanxi China
| | - Jun-Tao Feng
- Research and Development Center of Biorational Pesticides, Northwest A & F University, Yangling, 712100 Shaanxi China
- Shannxi Research Center of Biopesticides Engineering and Technology, Northwest A & F University, Yangling, 712100 Shannxi China
| | - Xing Zhang
- Research and Development Center of Biorational Pesticides, Northwest A & F University, Yangling, 712100 Shaanxi China
- Shannxi Research Center of Biopesticides Engineering and Technology, Northwest A & F University, Yangling, 712100 Shannxi China
| | - Li-Rong Han
- Research and Development Center of Biorational Pesticides, Northwest A & F University, Yangling, 712100 Shaanxi China
- Shannxi Research Center of Biopesticides Engineering and Technology, Northwest A & F University, Yangling, 712100 Shannxi China
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Nain-Perez A, Barbosa LCA, Maltha CRÁ, Forlani G. Natural Abenquines and Their Synthetic Analogues Exert Algicidal Activity against Bloom-Forming Cyanobacteria. JOURNAL OF NATURAL PRODUCTS 2017; 80:813-818. [PMID: 28319393 DOI: 10.1021/acs.jnatprod.6b00629] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Abenquines are natural quinones, produced by some Streptomycetes, showing the ability to inhibit cyanobacterial growth in the 1 to 100 μM range. To further elucidate their biological significance, the synthesis of several analogues (4f-h, 5a-h) allowed us to identify some steric and electronic requirements for bioactivity. Replacing the acetyl by a benzoyl group in the quinone core and also changing the amino acid moiety with ethylpyrimidinyl or ethylpyrrolidinyl groups resulted in analogues 25-fold more potent than the natural abenquines. The two most effective analogues inhibited the proliferation of five cyanobacterial strains tested, with IC50 values ranging from 0.3 to 3 μM. These compounds may be useful leads for the development of an effective strategy for the control of cyanobacterial blooms.
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Affiliation(s)
- Amalyn Nain-Perez
- Department of Chemistry, Universidade Federal de Minas Gerais , Avenida Pres. Antônio Carlos, 6627, Campus Pampulha, CEP 31270-901, Belo Horizonte, MG, Brazil
| | - Luiz Cláudio Almeida Barbosa
- Department of Chemistry, Universidade Federal de Minas Gerais , Avenida Pres. Antônio Carlos, 6627, Campus Pampulha, CEP 31270-901, Belo Horizonte, MG, Brazil
- Department of Chemistry, Federal University of Viçosa , 36570-000, Viçosa, MG, Brazil
| | | | - Giuseppe Forlani
- Department of Life Science and Biotechnology, University of Ferrara , Via L. Borsari 46, I-44121 Ferrara, Italy
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Two herbimycin analogs, 4,5-dihydro-(4S)-4-hydroxyherbimycin B and (15S)-15-hydroxyherbimycin B, from Streptomyces sp. CPCC 200291. J Antibiot (Tokyo) 2015; 68:476-80. [PMID: 25690359 DOI: 10.1038/ja.2015.12] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2014] [Revised: 01/18/2015] [Accepted: 01/19/2015] [Indexed: 11/08/2022]
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9
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Hampel T, Neubauer T, van Leeuwen T, Bach T. Stereoselective Preparation of (E)-Configured 1,2-Disubstituted Propenes from Two Aldehydes by a Two-Carbon Stitching Strategy: Convergent Synthesis of 18,21-Diisopropyl-Geldanamycin Hydroquinone and Its C7 Epimer. Chemistry 2012; 18:10382-92. [DOI: 10.1002/chem.201201600] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2012] [Indexed: 11/07/2022]
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11
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Cui CB, Han B, Cai B, Wang H. Pseudoverticin, a novel benzoquinone-derived ansamycin antibiotic obtained as new cell cycle inhibitor from Streptomyces pseudoverticillus YN17707. Tetrahedron Lett 2007. [DOI: 10.1016/j.tetlet.2007.05.052] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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12
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13
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Janin YL. Heat Shock Protein 90 Inhibitors. A Text Book Example of Medicinal Chemistry? J Med Chem 2005; 48:7503-12. [PMID: 16302791 DOI: 10.1021/jm050759r] [Citation(s) in RCA: 112] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yves L Janin
- URA 2128 CNRS-Institut Pasteur, 28 Rue du Dr. Roux, 75724 Paris Cedex 15, France.
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Rascher A, Hu Z, Buchanan GO, Reid R, Hutchinson CR. Insights into the biosynthesis of the benzoquinone ansamycins geldanamycin and herbimycin, obtained by gene sequencing and disruption. Appl Environ Microbiol 2005; 71:4862-71. [PMID: 16085885 PMCID: PMC1183368 DOI: 10.1128/aem.71.8.4862-4871.2005] [Citation(s) in RCA: 82] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Geldanamycin and the closely related herbimycins A, B, and C were the first benzoquinone ansamycins to be extensively studied for their antitumor properties as small-molecule inhibitors of the Hsp90 protein chaperone complex. These compounds are produced by two different Streptomyces hygroscopicus strains and have the same modular polyketide synthase (PKS)-derived carbon skeleton but different substitution patterns at C-11, C-15, and C-17. To set the stage for structural modification by genetic engineering, we previously identified the gene cluster responsible for geldanamycin biosynthesis. We have now cloned and sequenced a 115-kb segment of the herbimycin biosynthetic gene cluster from S. hygroscopicus AM 3672, including the genes for the PKS and most of the post-PKS tailoring enzymes. The similarities and differences between the gene clusters and biosynthetic pathways for these closely related ansamycins are interpreted with support from the results of gene inactivation experiments. In addition, the organization and functions of genes involved in the biosynthesis of the 3-amino-5-hydroxybenzoic acid (AHBA) starter unit and the post-PKS modifications of progeldanamycin were assessed by inactivating the subclusters of AHBA biosynthetic genes and two oxygenase genes (gdmM and gdmL) that were proposed to be involved in formation of the geldanamycin benzoquinoid system. A resulting novel geldanamycin analog, KOS-1806, was isolated and characterized.
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Affiliation(s)
- Andreas Rascher
- Kosan Biosciences, Inc., 3832 Bay Center Place, Hayward, CA 94545, USA.
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15
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Patel K, Piagentini M, Rascher A, Tian ZQ, Buchanan GO, Regentin R, Hu Z, Hutchinson CR, McDaniel R. Engineered biosynthesis of geldanamycin analogs for Hsp90 inhibition. ACTA ACUST UNITED AC 2005; 11:1625-33. [PMID: 15610846 DOI: 10.1016/j.chembiol.2004.09.012] [Citation(s) in RCA: 103] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2004] [Revised: 09/20/2004] [Accepted: 09/21/2004] [Indexed: 11/16/2022]
Abstract
Geldanamycin, a polyketide natural product, is of significant interest for development of new anticancer drugs that target the protein chaperone Hsp90. While the chemically reactive groups of geldanamycin have been exploited to make a number of synthetic analogs, including 17-allylamino-17-demethoxy geldanamycin (17-AAG), currently in clinical evaluation, the "inert" groups of the molecule remain unexplored for structure-activity relationships. We have used genetic engineering of the geldanamycin polyketide synthase (GdmPKS) gene cluster in Streptomyces hygroscopicus to modify geldanamycin at such positions. Substitutions of acyltransferase domains were made in six of the seven GdmPKS modules. Four of these led to production of 2-desmethyl, 6-desmethoxy, 8-desmethyl, and 14-desmethyl derivatives, including one analog with a four-fold enhanced affinity for Hsp90. The genetic tools developed for geldanamycin gene manipulation will be useful for engineering additional analogs that aid the development of this chemotherapeutic agent.
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Affiliation(s)
- Kedar Patel
- Kosan Biosciences, Inc., Hayward, CA 94545, USA
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16
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Fugmann B, Lieb F, Moeschler H, Naumann K, Wachendorff U. Natürliche Pflanzenschutzwirkstoffe. Teil I: Eine Alternative zu synthetischen Pflanzenschutzmittlen? CHEM UNSERER ZEIT 2004. [DOI: 10.1002/ciuz.19910250606] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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17
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Abstract
[structure: see text] Herbimycin A (HA) belongs to a class of antibiotics known as the benzoquinoid ansamycins. Members of this class have shown promising biological activity as Hsp90 inhibitors. An enantioselective synthesis of HA is described, employing asymmetric syn-crotylation methodology to introduce the C10, C11, C14, and C15 stereocenters. The C6-C7 stereocenters were introduced using Brown's alpha-pinene-derived gamma-methoxy allylborane reagent. The C12 stereocenter was established by diastereoselective hydroboration.
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Affiliation(s)
- Kendra D Carter
- Department of Chemistry and Center for Chemical Methodology and Library Development, Boston University, 590 Commonwealth Avenue, Boston, Massachusetts 02215, USA
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18
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Rascher A, Hu Z, Viswanathan N, Schirmer A, Reid R, Nierman WC, Lewis M, Hutchinson CR. Cloning and characterization of a gene cluster for geldanamycin production in Streptomyces hygroscopicus NRRL 3602. FEMS Microbiol Lett 2003; 218:223-30. [PMID: 12586396 DOI: 10.1016/s0378-1097(02)01148-5] [Citation(s) in RCA: 123] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
We illustrate the use of a PCR-based method by which the genomic DNA of a microorganism can be rapidly queried for the presence of type I modular polyketide synthase genes to clone and characterize, by sequence analysis and gene disruption, a major portion of the geldanamycin production gene cluster from Streptomyces hygroscopicus var. geldanus NRRL 3602.
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Affiliation(s)
- Andreas Rascher
- Kosan Biosciences, 3832 Bay Center Place, 94545, Hayward, CA, USA.
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19
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Supino-Rosin L, Yoshimura A, Yarden Y, Elazar Z, Neumann D. Intracellular retention and degradation of the epidermal growth factor receptor, two distinct processes mediated by benzoquinone ansamycins. J Biol Chem 2000; 275:21850-5. [PMID: 10806200 DOI: 10.1074/jbc.m001834200] [Citation(s) in RCA: 38] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Epidermal growth factor (EGF) stimulates the growth of various types of cells via its cell surface tyrosine kinase receptor. The EGF receptor (EGF-R) has an oncogenic potential when overexpressed in a wide range of tumor cells. Geldanamycin (GA) and herbimycin (HA), specific inhibitors of the cytosolic chaperone HSP 90 and its endoplasmic reticulum homologue GRP 94, were shown to accelerate degradation of the EGF-R and of its homologue p185(c-)(erbB-2). Here we compared the effects of GA and HA on intracellular degradation and maturation of EGF-R. By using an inhibitor of proteasomal degradation, we learned that GA, but not HA, blocks processing of newly synthesized EGF-R. The effects of GA and HA on receptor degradation are mediated by the cytosolic portion of EGF-R and could be conferred to the erythropoietin receptor (EPO-R), by employing the respective chimera. Neither HA nor GA affected stability of newly synthesized EGF-R lacking the cytosolic domain (Ex EGF-R), but GA caused intracellular retention of this mutant. Taken together, our results imply that GA has two distinct targets of action on the EGF-R, one for promoting its degradation and another for mediating its intracellular retention. Apparently, degradation of the EGF-R mediated by GA or HA requires the presence of the EGF-R cytosolic domain, whereas intracellular retention in the presence of GA is coupled to the extracellular domain of the EGF-R.
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Affiliation(s)
- L Supino-Rosin
- Department of Cell Biology and Histology, Sackler Faculty of Medicine Tel-Aviv University, Ramat Aviv 69978, Israel
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20
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Martin SF, Limberakis C, Burgess LE, Hartmann M. Strategies for ansamycin antibiotics. asymmetric synthesis of the C(3)–C(21) subunit of herbimycin A. Tetrahedron 1999. [DOI: 10.1016/s0040-4020(98)01163-6] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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21
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Martin SF, Dodge JA, Burgess LE, Limberakis C, Hartmann M. Novel approach to the ansamycin antibiotics macbecin I and herbimycin A. A formal total synthesis of (+)-macbecin I. Tetrahedron 1996. [DOI: 10.1016/0040-4020(95)01107-2] [Citation(s) in RCA: 24] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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22
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Chiao JS, Xia TH, Mei BG, Jin ZK, Gu WL. Rifamycin SV and related ansamycins. BIOTECHNOLOGY (READING, MASS.) 1995; 28:477-498. [PMID: 8688635 DOI: 10.1016/b978-0-7506-9095-9.50026-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Affiliation(s)
- J S Chiao
- Institute of Plant Physiology, Academia Sinica, Shanghai, China
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23
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Supko JG, Hickman RL, Grever MR, Malspeis L. Preclinical pharmacologic evaluation of geldanamycin as an antitumor agent. Cancer Chemother Pharmacol 1995; 36:305-15. [PMID: 7628050 DOI: 10.1007/bf00689048] [Citation(s) in RCA: 361] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
The plasma pharmacokinetics of the anti-tumor antibiotic geldanamycin (GM: NSC 122750), a naturally occurring benzoquinoid ansamycin, was characterized in mice and a beagle dog. Concentrations of GM well above 0.1 microgram/ml, which was typically effective against neoplastic cell lines responsive to the drug in vitro, were achieved in the plasma of the mice and the dog treated by i.v. injection. However, the systemic duration of the drug was relatively short. Plasma levels decayed below 0.1 microgram/ml within 3-4 h after administration of the apparent maximum tolerated doses, which were approximately 20 mg/kg for the mice and 4 mg/kg for the dog. The drug exhibited linear pharmacokinetic behavior within the dose ranges studied. However, there were significant interspecies differences in its disposition. Whereas the mean biological half-life of GM was slightly longer in the mice (77.7 min) than in the dog (57.9 min), its mean residence time in the dog (46.6 min) was more than twofold greater than that observed in the mice (20.7 min). Nevertheless, the drug was cleared from plasma much faster by the dog (49.4 ml/min per kg) than by the mice (30.5 ml/min per kg). These apparent anomalies were principally associated with differences in the relative significance of the terminal phase upon overall drug disposition. The liver appeared to be the principal target organ of acute drug toxicity in the dog. Doses of 2.0 and 4.2 mg/kg both produced elevations in serum levels of the transaminases and other indicators of liver function characteristic of acute hepatic necrosis. Additional effects included symptoms of minor gastrointestinal toxicity and alterations in serum chemistry parameters consistent with less severe nephrotoxicity. Drug-related toxicity appeared to be reversible. In consideration of the potential for acute hepatotoxic reactions to GM, as well as to the other benzoquinoid ansamycins based upon structural analogy, additional pharmacological and therapeutic information is required to ascertain whether these compounds are viable candidates for clinical development.
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Affiliation(s)
- J G Supko
- Laboratory of Pharmaceutical Chemistry, National Cancer Institute, Frederick, MD 21701, USA
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24
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Allen IW, Ritchie DA. Cloning and analysis of DNA sequences from Streptomyces hygroscopicus encoding geldanamycin biosynthesis. MOLECULAR & GENERAL GENETICS : MGG 1994; 243:593-9. [PMID: 8208250 DOI: 10.1007/bf00284208] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
A gene library constructed from large (approximately 20 kb) fragments of total DNA from the geldananmycin-producing strain Streptomyces hygroscopicus 3602 cloned in the plasmid vector pIJ61 were used to transform S. lividans TK24. Three transformants of about 800 tested were found to have acquired the ability to produce an antibiotic lethal to a geldanamycin-sensitive strain of Bacillus subtilis. The plasmids isolated from these transformants, pIA101, pIA102 and pIA103, each contained an insert of approximately 15 kb. A 4.5 kb DNA fragment from the insert in pIA102 hybridised to DNA from S. hygroscopicus 3602 and to DNA encoding part of the erythromycin polyketide synthase but not to S. lividans TK24 DNA. The integration-defective phage vector phi C31 KC515 containing this 4.5 kb fragment was able to lysogenise S. hygroscopicus 3602 to produce lysogens defective in geldanamycin production. Loss of the prophage restored the ability to produce geldanamycin. Extracts of fermentation broth cultures of S. lividans containing pIA101, pIA102 and pIA102 and pIA103 analysed by thin-layer chromatography (TLC) contained compounds identical or very similar to purified geldanamycin, which were not present in S. lividans. These compounds showed a mass spectrum indistinguishable from geldanamycin. The evidence suggests that the clones contain DNA sequences encoding functions required for geldanamycin biosynthesis including components of the polyketide synthase.
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Affiliation(s)
- I W Allen
- Department of Genetics and Microbiology, Donnan Laboratories, University of Liverpool, UK
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25
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Diastereoselective [2,3] Wittig rearrangement of carbohydrate-derived tertiary allylic ethers. 1. Synthesis of the C11-C18 subunit of herbimycin a from D-glucose. Tetrahedron Lett 1993. [DOI: 10.1016/0040-4039(93)89002-8] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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26
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Nakata M, Osumi T, Ueno A, Kimura T, Tamai T, Tatsuta K. The Total Synthesis of Herbimycin A. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 1992. [DOI: 10.1246/bcsj.65.2974] [Citation(s) in RCA: 29] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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27
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Abstract
Bioactive microbial metabolites are attracting increasing attention as useful agents for medicine, veterinary medicine, agriculture, and as unique biochemical tools. A review of the current trends in the discovery of new metabolites shows that the number of active compounds with non-antibiotic type of activity has increased, resulting in an expansion of the variety of bioactivity of microbial metabolites. Factors that contribute to the increased rate of discovery include: development of new methods for activity measurement, exploitation of novel groups of microorganisms as sources of active compounds, new directions for chemical modification, and incorporation of newer knowledge of biotechnology into screening systems. To exemplify this, typical screening methods, and chemical and biological properties of several bioactive compounds obtained by these methods are discussed.
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Affiliation(s)
- S Omura
- Research Center for Biological Function, Kitasato Institute, Tokyo, Japan
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28
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Murakami Y, Uehara Y, Yamamoto C, Fukazawa H, Mizuno S. Induction of hsp 72/73 by herbimycin A, an inhibitor of transformation by tyrosine kinase oncogenes. Exp Cell Res 1991; 195:338-44. [PMID: 2070817 DOI: 10.1016/0014-4827(91)90382-5] [Citation(s) in RCA: 40] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Herbimycin A, which has been known to inactivate and degrade p60v-src tyrosine kinase, induced an elevated synthesis of a protein with a molecular size of 70 kDa in A431 human epidermoid carcinoma cells. This protein showed the same migration distance on SDS-polyacrylamide gel electrophoresis as that of the protein induced in the cells by heat shock treatment, and this 70-kDa protein was identified as a member of the heat shock protein 70 family (hsp70) through immunoprecipitation with anti-hsp72/73 antibody and partial digestion with V8 protease. The induced level of the 70-kDa protein was dependent on the length of period and the concentration of herbimycin A treatment. Cellular fractionation and indirect immunofluorescence analyses revealed that the 70-kDa protein induced by herbimycin A was localized in the cytoplasm, in contrast to the nuclear distribution of hsp70 induced by heat treatment. Induction of hsp70 by herbimycin A was also observed in several other cells, including HeLa S3 cells, chicken embryo fibroblasts, NIH3T3 cells, and Rous sarcoma virus-transformed NIH3T3 cells.
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Affiliation(s)
- Y Murakami
- Department of Antibiotics, National Institute of Health, Tokyo, Japan
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30
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Couus SJ, Wiuman MD, Kallmerten J. Synthesis of antitumor ansamycins. 1. Serial sigmatropic construction of the C11-C21 ansa subunit of macbecin I. Tetrahedron Lett 1990. [DOI: 10.1016/s0040-4039(00)97606-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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31
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Damberg M, Russ P, Zeeck A. Die konstitution der fungistatischen ansamycin-antibiotica ansatrienin A und B. Tetrahedron Lett 1982. [DOI: 10.1016/s0040-4039(00)97531-2] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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