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Zhang M, Li L, Li C, Ma A, Li J, Yang C, Chen X, Cao P, Li S, Zhang Y, Yuchi Z, Du X, Liu C, Wang X, Wang X, Xiang W. Natural product guvermectin inhibits guanosine 5'-monophosphate synthetase and confers broad-spectrum antibacterial activity. Int J Biol Macromol 2024; 267:131510. [PMID: 38608989 DOI: 10.1016/j.ijbiomac.2024.131510] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2024] [Revised: 03/27/2024] [Accepted: 04/09/2024] [Indexed: 04/14/2024]
Abstract
Bacterial diseases caused substantial yield losses worldwide, with the rise of antibiotic resistance, there is a critical need for alternative antibacterial compounds. Natural products (NPs) from microorganisms have emerged as promising candidates due to their potential as cost-effective and environmentally friendly bactericides. However, the precise mechanisms underlying the antibacterial activity of many NPs, including Guvermectin (GV), remain poorly understood. Here, we sought to explore how GV interacts with Guanosine 5'-monophosphate synthetase (GMPs), an enzyme crucial in bacterial guanine synthesis. We employed a combination of biochemical and genetic approaches, enzyme activity assays, site-directed mutagenesis, bio-layer interferometry, and molecular docking assays to assess GV's antibacterial activity and its mechanism targeting GMPs. The results showed that GV effectively inhibits GMPs, disrupting bacterial guanine synthesis. This was confirmed through drug-resistant assays and direct enzyme inhibition studies. Bio-layer interferometry assays demonstrated specific binding of GV to GMPs, with dependency on Xanthosine 5'-monophosphate. Site-directed mutagenesis identified key residues crucial for the GV-GMP interaction. This study elucidates the antibacterial mechanism of GV, highlighting its potential as a biocontrol agent in agriculture. These findings contribute to the development of novel antibacterial agents and underscore the importance of exploring natural products for agricultural disease management.
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Affiliation(s)
- Manman Zhang
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China; Department of Entomology and MOA Key Lab of Pest Monitoring and Green Management, Plant Pathology Department, College of Plant Protection, China Agricultural University, Beijing 100193, China
| | - Lei Li
- Key Laboratory of Agricultural Microbiology of Heilongjiang Province, Northeast Agricultural University, Harbin 150030, China
| | - Cheng Li
- College of Agriculture, Key Laboratory of Agricultural Microbiology of Guizhou Province, Guizhou University, Guiyang 550025, China
| | - Aifang Ma
- State Key Laboratory of Plant Physiology and Biochemistry, College of Biological Sciences, China Agricultural University, Beijing 100193, China
| | - Junzhou Li
- Key Laboratory of Microbial Resources Collection and Preservation, Ministry of Agriculture and Rural Affairs, Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Chenyu Yang
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Xujun Chen
- Department of Entomology and MOA Key Lab of Pest Monitoring and Green Management, Plant Pathology Department, College of Plant Protection, China Agricultural University, Beijing 100193, China
| | - Peng Cao
- Key Laboratory of Drug Targets and Drug Leads for Degenerative Diseases, Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Shanshan Li
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Yanyan Zhang
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Zhiguang Yuchi
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, Collaborative Innovation Center of Chemical Science and Engineering, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, China
| | - Xiangge Du
- Department of Entomology and MOA Key Lab of Pest Monitoring and Green Management, Plant Pathology Department, College of Plant Protection, China Agricultural University, Beijing 100193, China
| | - Chongxi Liu
- Key Laboratory of Agricultural Microbiology of Heilongjiang Province, Northeast Agricultural University, Harbin 150030, China
| | - Xiangjing Wang
- Key Laboratory of Agricultural Microbiology of Heilongjiang Province, Northeast Agricultural University, Harbin 150030, China
| | - Xiaodan Wang
- Department of Entomology and MOA Key Lab of Pest Monitoring and Green Management, Plant Pathology Department, College of Plant Protection, China Agricultural University, Beijing 100193, China.
| | - Wensheng Xiang
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China; Key Laboratory of Agricultural Microbiology of Heilongjiang Province, Northeast Agricultural University, Harbin 150030, China.
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Moreira T, Manuel DM, Rosa J, Nunes RS, Vojáčková V, Jorda R, Oliveira MC, Xavier NM. Synthesis and Antiproliferative Evaluation of d-Glucuronamide-Based Nucleosides and (Triazolyl)methyl Amide-Linked Pseudodisaccharide Nucleosides. ChemMedChem 2024; 19:e202300608. [PMID: 38095428 DOI: 10.1002/cmdc.202300608] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2023] [Revised: 12/01/2023] [Indexed: 02/03/2024]
Abstract
The synthesis and antiproliferative evaluation of novel d-glucopyranuronamide-containing nucleosides is described. Based on our previously reported anticancer d-glucuronamide-based nucleosides, new analogues comprising N/O-dodecyl or N-propargyl substituents at the glucuronamide unit and anomerically-N-linked 2-acetamido-6-chloropurine, 6-chloropurine or 4-(6-chloropurinyl)methyl triazole motifs were synthesized in 4-6 steps starting from acetonide-protected glucofuranurono-6,3-lactone. The methodologies were based on the access to N-substituted glycopyranuronamide precursors, namely 1,2-O-acetyl derivatives or glucuronoamidyl azides for further nucleobase N-glycosylation or 1,3-dipolar cycloaddition with N9 - and N7 -propargyl-6-chloropurines, respectively. N-Propargyl glucuronamide-based N9 -purine nucleosides were converted into (triazolyl)methyl amide-6,6-linked pseudodisaccharide nucleosides via cycloaddition with methyl 6-azido-glucopyranoside. A CuI/Amberlyst A-21 catalytic system employed in the cycloaddition reactions also effected conversion into 6-dimethylaminopurine nucleosides. Antiproliferative evaluation in chronic myeloid leukemia (K562) and breast cancer (MCF-7) cells revealed significant effects exhibited by the synthesized monododecylated purine-containing nucleosides. A N-propargyl 3-O-dodecyl glucuronamide derivative comprising a N9 -β-linked 6-chloropurine moiety was the most active compound against MCF-7 cells (GI50 =11.9 μM) while a related α-(purinyl)methyltriazole nucleoside comprising a N7 -linked 6-chloropurine moiety exhibited the highest activity against K562 cells (GI50 =8.0 μM). Flow cytometry and immunoblotting analysis of apoptosis-related proteins in K562 cells treated with the N-propargyl 3-O-dodecyl glucuronamide-based N9 -linked 6-chloropurine nucleoside indicated that it acts via apoptosis induction.
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Affiliation(s)
- Tânia Moreira
- Centro de Química Estrutural, Institute of Molecular Sciences, Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade de Lisboa, Ed. C8, 5° Piso, Campo Grande, 1749-016, Lisboa, Portugal
| | - Domingos M Manuel
- Centro de Química Estrutural, Institute of Molecular Sciences, Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade de Lisboa, Ed. C8, 5° Piso, Campo Grande, 1749-016, Lisboa, Portugal
| | - Joana Rosa
- Centro de Química Estrutural, Institute of Molecular Sciences, Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade de Lisboa, Ed. C8, 5° Piso, Campo Grande, 1749-016, Lisboa, Portugal
| | - Rafael Santana Nunes
- Centro de Química Estrutural, Institute of Molecular Sciences, Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade de Lisboa, Ed. C8, 5° Piso, Campo Grande, 1749-016, Lisboa, Portugal
- BioISI - Biosystems & Integrative Sciences Institute, Faculdade de Ciências, Universidade de Lisboa, Ed. C8, Campo Grande, 1749-016, Lisboa, Portugal
| | - Veronika Vojáčková
- Department of Experimental Biology, Faculty of Science, Palacký University Olomouc, Šlechtitelů 27, 78371, Olomouc, Czech Republic
| | - Radek Jorda
- Department of Experimental Biology, Faculty of Science, Palacký University Olomouc, Šlechtitelů 27, 78371, Olomouc, Czech Republic
| | - M Conceição Oliveira
- Centro de Química Estrutural, Institute of Molecular Sciences, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco País, 1049-001, Lisboa, Portugal
| | - Nuno M Xavier
- Centro de Química Estrutural, Institute of Molecular Sciences, Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade de Lisboa, Ed. C8, 5° Piso, Campo Grande, 1749-016, Lisboa, Portugal
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Singh N, Patil S, Shahnawaz M, Rai V, Patil A, Tripathi CKM, Wen F, Dong S, Cai D. Green extraction of puromycin-based antibiotics from Streptomyces albofaciens (MS38) for sustainable biopharmaceutical applications. Front Chem 2024; 11:1326328. [PMID: 38264123 PMCID: PMC10803528 DOI: 10.3389/fchem.2023.1326328] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2023] [Accepted: 12/22/2023] [Indexed: 01/25/2024] Open
Abstract
Background: Microbial secondary metabolites have shown promise as a source of novel antimicrobial agents. In this study, we aimed to isolate, characterize, and evaluate the antimicrobial activity of compound from a novel Streptomyces albofaciens strain MS38. The objective was to identify a potential bioactive compound with broad-spectrum antimicrobial properties. Methods: The isolated strain MS38 on starch casein agar was characterized using morphological, physiological, and molecular identification techniques. The compound was obtained from the fermented broth through extraction with n-butanol and further purification using silica gel column chromatography and high-performance liquid chromatography (HPLC). Structural elucidation was conducted using Ultraviolet (UV), Infrared (IR), nuclear magnetic resonance (NMR), and mass spectrometry (MS) techniques. The antimicrobial activity was evaluated using the agar well diffusion method and the microplate Alamar blue assay (MABA). Results: The isolated strain MS38 was identified as novel S. albofaciens based on morphological characteristics and confirmed by 16S sequences analysis and MALDI-TOF MS. The compound obtained from the fermented broth exhibited substantial antimicrobial activity against a variety of pathogenic bacteria and fungi. Structural analysis revealed a complex chemical structure with characteristic functional groups indicative of potential antimicrobial properties. The compound demonstrated strong activity against both Gram-positive (Staphylococcus Spp.) and Gram-negative (Klebsiella pneumoniae and Escherichia coli) bacteria, as well as fungi, including Candida albicans and Trichophyton rubrum. Conclusion: This study successfully isolated and characterized a bioactive compound from a novel S. albofaciens MS38. The compound exhibited significant antimicrobial activity against a range of pathogenic microorganisms. These findings underscore the importance of exploring microbial biodiversity for the discovery of novel antimicrobial agents. This study contributes to the growing knowledge of microbial secondary metabolites with potential therapeutic value.
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Affiliation(s)
- Neha Singh
- Biochemistry and Microbiology Laboratory, School of Studies in Life Sciences, Pt. Ravishankar Shukla University, Raipur, India
- Virology Lab, Department of Microbiology, Pandit Jawahar Lal Nehru Memorial Medical College, Raipur, Chhattisgarh, India
| | - Sandip Patil
- Department of Haematology and Oncology, Shenzhen Children’s Hospital, Shenzhen, Guangdong, China
- Paediatric Research Institute, Shenzhen Children’s Hospital, Shenzhen, Guangdong, China
| | - Mohd. Shahnawaz
- Department of Botany, University of Ladakh, Ladakh UT, India
| | - Vibhuti Rai
- Biochemistry and Microbiology Laboratory, School of Studies in Life Sciences, Pt. Ravishankar Shukla University, Raipur, India
| | - Abhinandan Patil
- Division of Pharmacy, Dr. DY Patil University, Kolhapur, Maharashtra, India
| | - C. K. M. Tripathi
- Fermentation Technology Division, Central Drug Research Institute, CSIR, Lucknow, India
| | - Feiqiu Wen
- Department of Haematology and Oncology, Shenzhen Children’s Hospital, Shenzhen, Guangdong, China
| | - Shaowei Dong
- Department of Haematology and Oncology, Shenzhen Children’s Hospital, Shenzhen, Guangdong, China
| | - Defeng Cai
- Clinical Laboratory (Pathology) Centre, South China Hospital of Shenzhen University, Shenzhen, Guangdong, China
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Liu N, Xu Y, Shang F, Sun H, Liu X, Huang Y, Tan H, Zhang J. New insights into the dihydro-mureidomycin biosynthesis controlled by two unusual proteins in Streptomyces roseosporus. Microb Cell Fact 2023; 22:255. [PMID: 38087285 PMCID: PMC10714638 DOI: 10.1186/s12934-023-02260-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Accepted: 11/27/2023] [Indexed: 12/18/2023] Open
Abstract
BACKGROUND Uridyl peptide compounds are renowned as a subclass of nucleoside antibiotics for their highly specific antibacterial activity against Gram-negative bacteria and the unique target of action. We previously activated the biosynthetic gene cluster of a uridyl peptide antibiotic, mureidomycin, in Streptomyces roseosporus NRRL 15998 by introducing an exogenous positive regulator gene ssaA, and the generated strain was designated as Sr-hA. This study aims to further explore mureidomycin analogs from Sr-hA as well as the collaborative roles of two wide-spread genes, SSGG-02980 and SSGG-03002 encoding putative nuclease/phosphatase and oxidoreductase respectively, in mureidomycin diversification. RESULTS In order to understand how SSGG-02980 and SSGG-03002 contribute to mureidomycin biosynthesis, the gene disruption mutants and complementary strains were constructed. Mass spectrometry analyses revealed that two series of pairwise mureidomycin analogs were synthesized in Sr-hA with a two-dalton difference in molecular weight for each pair. By disruption of SSGG-03002, only mureidomycins with lower molecular weight (MRDs, 1-6) could be specifically accumulated in the mutant (∆03002-hA), whereas the other series of products with molecular weight plus 2 Da (rMRDs, 1'-6') became dominant in SSGG-02980 disruption mutant (∆02980-hA). Further comprehensive NMR analyses were performed to elucidate the structures, and three MRDs (3, 4, 5) with unsaturated double bond at C5-C6 of uracil group were characterized from ∆03002-hA. In contrast, the paired rMRDs analogs (3', 4', 5') from ∆SSGG-02980 corresponding to 3, 4 and 5 were shown to contain a single bond at this position. The results verified that SSGG-03002 participates in the reduction of uracil ring, whereas SSGG-02980 antagonizes the effect of SSGG-03002, which has been rarely recognized for a phosphatase. CONCLUSIONS Overall, this study revealed the key roles of two wide-spread families of enzymes in Streptomyces. Of them, oxidoreductase, SSGG-03002, is involved in dihydro-mureidomycin biosynthesis of S. roseosporus, whereas nuclease/phosphatase, SSGG-02980, has an adverse effect on SSGG-03002. This kind of unusual regulation model between nuclease/phosphatase and oxidoreductase is unprecedented, providing new insights into the biosynthesis of mureidomycins in Streptomyces. The findings would be of significance for structural diversification of more uridyl peptide antibiotics against Gram-negative bacteria.
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Affiliation(s)
- Ning Liu
- State Key Laboratory of Microbial Resources, Institute of Microbiology, Chinese Academy of Sciences, Beijing, 100101, China
| | - Yang Xu
- State Key Laboratory of Microbial Resources, Institute of Microbiology, Chinese Academy of Sciences, Beijing, 100101, China
- College of Life Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Fei Shang
- Analytical and Testing Center, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Huiying Sun
- State Key Laboratory of Microbial Resources, Institute of Microbiology, Chinese Academy of Sciences, Beijing, 100101, China
- College of Life Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Xiang Liu
- State Key Laboratory of Microbial Resources, Institute of Microbiology, Chinese Academy of Sciences, Beijing, 100101, China
- College of Life Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Ying Huang
- State Key Laboratory of Microbial Resources, Institute of Microbiology, Chinese Academy of Sciences, Beijing, 100101, China
| | - Huarong Tan
- State Key Laboratory of Microbial Resources, Institute of Microbiology, Chinese Academy of Sciences, Beijing, 100101, China.
- College of Life Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China.
| | - Jihui Zhang
- State Key Laboratory of Microbial Resources, Institute of Microbiology, Chinese Academy of Sciences, Beijing, 100101, China.
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Li J, Han N, Li Y, Zhao F, Xiong W, Zeng Z. Evaluating the Antibacterial and Antivirulence Activities of Floxuridine against Streptococcus suis. Int J Mol Sci 2023; 24:14211. [PMID: 37762514 PMCID: PMC10532271 DOI: 10.3390/ijms241814211] [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: 08/22/2023] [Revised: 09/11/2023] [Accepted: 09/14/2023] [Indexed: 09/29/2023] Open
Abstract
Streptococcus suis is an emerging zoonotic pathogen that can cause fatal diseases such as meningitis and sepsis in pigs and human beings. The overuse of antibiotics is leading to an increased level of resistance in S. suis, and novel antimicrobial agents or anti-virulence agents for the treatment of infections caused by S. suis are urgently needed. In the present study, we investigated the antibacterial activity, mode of action and anti-virulence effects of floxuridine against S. suis. Floxuridine showed excessive antibacterial activity against S. suis both in vivo and in vitro; 4 × MIC of floxuridine could kill S. suis within 8 h in a time-kill assay. Meanwhile, floxuridine disrupted the membrane structure and permeability of the cytoplasmic membrane. Molecular docking revealed that floxuridine and SLY can be directly bind to each other. Moreover, floxuridine effectively inhibited the hemolytic capacity and expression levels of the virulence-related genes of S. suis. Collectively, these results indicate that the FDA-approved anticancer drug floxuridine is a promising agent and a potential virulence inhibitor against S. suis.
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Affiliation(s)
- Jie Li
- Guangdong Provincial Key Laboratory of Veterinary Pharmaceutics Development and Safety Evaluation, College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China; (J.L.); (W.X.)
- National Laboratory of Safety Evaluation (Environmental Assessment) of Veterinary Drugs, College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China
- National Risk Assessment Laboratory for Antimicrobial Resistance of Animal Original Bacteria, College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China
| | - Ning Han
- Guangdong Provincial Key Laboratory of Veterinary Pharmaceutics Development and Safety Evaluation, College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China; (J.L.); (W.X.)
- National Laboratory of Safety Evaluation (Environmental Assessment) of Veterinary Drugs, College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China
- National Risk Assessment Laboratory for Antimicrobial Resistance of Animal Original Bacteria, College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China
| | - Yangyang Li
- Guangdong Provincial Key Laboratory of Veterinary Pharmaceutics Development and Safety Evaluation, College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China; (J.L.); (W.X.)
- National Laboratory of Safety Evaluation (Environmental Assessment) of Veterinary Drugs, College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China
- National Risk Assessment Laboratory for Antimicrobial Resistance of Animal Original Bacteria, College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China
| | - Feifei Zhao
- Guangdong Provincial Key Laboratory of Veterinary Pharmaceutics Development and Safety Evaluation, College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China; (J.L.); (W.X.)
- National Laboratory of Safety Evaluation (Environmental Assessment) of Veterinary Drugs, College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China
- National Risk Assessment Laboratory for Antimicrobial Resistance of Animal Original Bacteria, College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China
| | - Wenguang Xiong
- Guangdong Provincial Key Laboratory of Veterinary Pharmaceutics Development and Safety Evaluation, College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China; (J.L.); (W.X.)
- National Laboratory of Safety Evaluation (Environmental Assessment) of Veterinary Drugs, College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China
- National Risk Assessment Laboratory for Antimicrobial Resistance of Animal Original Bacteria, College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China
| | - Zhenling Zeng
- Guangdong Provincial Key Laboratory of Veterinary Pharmaceutics Development and Safety Evaluation, College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China; (J.L.); (W.X.)
- National Laboratory of Safety Evaluation (Environmental Assessment) of Veterinary Drugs, College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China
- National Risk Assessment Laboratory for Antimicrobial Resistance of Animal Original Bacteria, College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China
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Devi S, Sharma M, Manhas RK. Purification and biological analysis of antimicrobial compound produced by an endophytic Streptomyces sp. Sci Rep 2023; 13:15248. [PMID: 37709816 PMCID: PMC10502074 DOI: 10.1038/s41598-023-41296-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2023] [Accepted: 08/24/2023] [Indexed: 09/16/2023] Open
Abstract
Fungal phytopathogens and drug-resistant bacteria are two significant challenges in agriculture and public health, respectively. As a result, new sources of antimicrobial compounds are urgently needed. Taking into consideration these aspects, the present study was carried out to explore the antimicrobial activity of Streptomyces sp. SP5 against drug-resistant bacteria, especially methicillin resistant Staphylococcus aureus (MRSA), vancomycin resistant Enterococcus and fungal phytopathogens. MRSA and VRE are both types of antibiotic-resistant bacteria that pose significant challenges to public health. In vitro analysis of the metabolites of Streptomyces sp. SP5 exhibited broad-spectrum antimicrobial activity against drug-resistant bacteria and phytopathogenic fungi. Further chemical investigation of the diethyl ether extract led to the isolation and purification of an antimicrobial compound. The structure of the purified compound was elucidated by performing detailed spectroscopic analysis including MS, IR, and NMR. The compound was identified as plicacetin. Plicacetin is a nucleoside antibiotic that has been reported for antibacterial activity against Gram-positive bacterium Mycobacterium tuberculosis. According to our knowledge, the present study is the first to demonstrate the antimicrobial properties of plicacetin against Fusarium oxysporum, Alternaria brassicicola, Fusarium solani, VRE and Bacillus subtilis. The outcome of the current study endorses that compound produced by Streptomyces sp. SP5 can be used as an antimicrobial agent against fungal phytopathogens and drug-resistant bacteria.
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Affiliation(s)
- Sapna Devi
- Department of Microbiology, Guru Nanak Dev University, Amritsar, Punjab, 143005, India
| | - Manish Sharma
- Department of Microbiology, Guru Nanak Dev University, Amritsar, Punjab, 143005, India
| | - Rajesh Kumari Manhas
- Department of Microbiology, Guru Nanak Dev University, Amritsar, Punjab, 143005, India.
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Mukhin EM, Savateev KV, Rusinov VL. Approaches to the synthesis of heterocyclic C-nucleosides. Russ Chem Bull 2023; 72:425-481. [PMID: 37073401 PMCID: PMC10092924 DOI: 10.1007/s11172-023-3810-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2023] [Revised: 07/29/2023] [Accepted: 09/02/2023] [Indexed: 04/20/2023]
Abstract
This review is focused on the synthetic strategies to heterocyclic C-nucleosides and covers the literature from 2011 to 2021. The main attention is paid to the following three approaches: the direct C-C coupling of a carbohydrate moiety with a preformed aglycon unit, the construction of a (pseudo)sugar residue on a pre-formed aglycon, and the construction of an aglycon on a pre-formed (pseudo)sugar. In each Section, the literature data are categorized in terms of the size of aglycon from simple to complex, the advantages and drawbacks of the reviewed approaches are discussed.
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Affiliation(s)
- E. M. Mukhin
- Ural Federal University named after the First President of Russia B. N. Yeltsin, 19 ul. Mira, 620002 Ekaterinburg, Russian Federation
| | - K. V. Savateev
- Ural Federal University named after the First President of Russia B. N. Yeltsin, 19 ul. Mira, 620002 Ekaterinburg, Russian Federation
| | - V. L. Rusinov
- Ural Federal University named after the First President of Russia B. N. Yeltsin, 19 ul. Mira, 620002 Ekaterinburg, Russian Federation
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Cheng Y, Zhong C, Yan S, Chen C, Gao X. Structure modification: a successful tool for prodrug design. Future Med Chem 2023; 15:379-393. [PMID: 36946236 DOI: 10.4155/fmc-2022-0309] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/23/2023] Open
Abstract
Prodrug strategy is critical for innovative drug development. Structural modification is the most straightforward and effective method to develop prodrugs. Improving drug defects and optimizing the physical and chemical properties of a drug, such as lipophilicity and water solubility, changing the way of administration can be achieved through specific structural modification. Designing prodrugs by linking microenvironment-responsive groups to the prototype drugs is of great help in enhancing drug targeting. In the meantime, making connections between prodrugs and suitable drug delivery systems could realize drug loading increases, greater stability, bioavailability and drug release control. In this paper, lipidic, water-soluble, pH-responsive, redox-sensitive and enzyme-activatable prodrugs are reviewed on the basis of structural modification.
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Affiliation(s)
- Yuexuan Cheng
- College of Pharmacy, Xinjiang Medical University, Urumqi, Xinjiang, 830011, China
| | - Chunhong Zhong
- College of Pharmacy, Xinjiang Medical University, Urumqi, Xinjiang, 830011, China
| | - Shujing Yan
- College of Pharmacy, Xinjiang Medical University, Urumqi, Xinjiang, 830011, China
| | - Chunli Chen
- College of Pharmacy, Xinjiang Medical University, Urumqi, Xinjiang, 830011, China
- Engineering Research Center of Xinjiang & Central Asian Medicine Resources, Ministry of Education, Urumqi, Xinjiang, 830011, China
| | - Xiaoli Gao
- College of Pharmacy, Xinjiang Medical University, Urumqi, Xinjiang, 830011, China
- Engineering Research Center of Xinjiang & Central Asian Medicine Resources, Ministry of Education, Urumqi, Xinjiang, 830011, China
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Urbelienė N, Tiškus M, Tamulaitienė G, Gasparavičiūtė R, Lapinskaitė R, Jauniškis V, Sūdžius J, Meškienė R, Tauraitė D, Skrodenytė E, Urbelis G, Vaitekūnas J, Meškys R. Cytidine deaminases catalyze the conversion of N( S, O) 4-substituted pyrimidine nucleosides. SCIENCE ADVANCES 2023; 9:eade4361. [PMID: 36735785 PMCID: PMC9897663 DOI: 10.1126/sciadv.ade4361] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/23/2022] [Accepted: 01/03/2023] [Indexed: 06/18/2023]
Abstract
Cytidine deaminases (CDAs) catalyze the hydrolytic deamination of cytidine and 2'-deoxycytidine to uridine and 2'-deoxyuridine. Here, we report that prokaryotic homo-tetrameric CDAs catalyze the nucleophilic substitution at the fourth position of N4-acyl-cytidines, N4-alkyl-cytidines, and N4-alkyloxycarbonyl-cytidines, and S4-alkylthio-uridines and O4-alkyl-uridines, converting them to uridine and corresponding amide, amine, carbamate, thiol, or alcohol as leaving groups. The x-ray structure of a metagenomic CDA_F14 and the molecular modeling of the CDAs used in this study show a relationship between the bulkiness of a leaving group and the volume of the binding pocket, which is partly determined by the flexible β3α3 loop of CDAs. We propose that CDAs that are active toward a wide range of substrates participate in salvage and/or catabolism of variously modified pyrimidine nucleosides. This identified promiscuity of CDAs expands the knowledge about the cellular turnover of cytidine derivatives, including the pharmacokinetics of pyrimidine-based prodrugs.
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Affiliation(s)
- Nina Urbelienė
- Department of Molecular Microbiology and Biotechnology, Institute of Biochemistry, Life Sciences Center, Vilnius University, Saulėtekio av., 10257 Vilnius, Lithuania
| | - Matas Tiškus
- Department of Molecular Microbiology and Biotechnology, Institute of Biochemistry, Life Sciences Center, Vilnius University, Saulėtekio av., 10257 Vilnius, Lithuania
| | - Giedrė Tamulaitienė
- Department of Protein–DNA Interactions, Institute of Biotechnology, Life Sciences Center, Vilnius University, Saulėtekio av. 7, 10257 Vilnius, Lithuania
| | - Renata Gasparavičiūtė
- Department of Molecular Microbiology and Biotechnology, Institute of Biochemistry, Life Sciences Center, Vilnius University, Saulėtekio av., 10257 Vilnius, Lithuania
| | - Ringailė Lapinskaitė
- Department of Molecular Microbiology and Biotechnology, Institute of Biochemistry, Life Sciences Center, Vilnius University, Saulėtekio av., 10257 Vilnius, Lithuania
- Department of Organic Chemistry, Center for Physical Sciences and Technology, Akademijos 7, LT-08412 Vilnius, Lithuania
| | - Vykintas Jauniškis
- UAB Biomatter Designs (Biomatter), Žirmūnų st. 139A, 09120 Vilnius, Lithuania
| | - Jurgis Sūdžius
- Department of Organic Chemistry, Center for Physical Sciences and Technology, Akademijos 7, LT-08412 Vilnius, Lithuania
| | - Rita Meškienė
- Department of Molecular Microbiology and Biotechnology, Institute of Biochemistry, Life Sciences Center, Vilnius University, Saulėtekio av., 10257 Vilnius, Lithuania
| | - Daiva Tauraitė
- Department of Molecular Microbiology and Biotechnology, Institute of Biochemistry, Life Sciences Center, Vilnius University, Saulėtekio av., 10257 Vilnius, Lithuania
| | - Emilija Skrodenytė
- Department of Molecular Microbiology and Biotechnology, Institute of Biochemistry, Life Sciences Center, Vilnius University, Saulėtekio av., 10257 Vilnius, Lithuania
| | - Gintaras Urbelis
- Department of Molecular Microbiology and Biotechnology, Institute of Biochemistry, Life Sciences Center, Vilnius University, Saulėtekio av., 10257 Vilnius, Lithuania
- Department of Organic Chemistry, Center for Physical Sciences and Technology, Akademijos 7, LT-08412 Vilnius, Lithuania
| | - Justas Vaitekūnas
- Department of Molecular Microbiology and Biotechnology, Institute of Biochemistry, Life Sciences Center, Vilnius University, Saulėtekio av., 10257 Vilnius, Lithuania
| | - Rolandas Meškys
- Department of Molecular Microbiology and Biotechnology, Institute of Biochemistry, Life Sciences Center, Vilnius University, Saulėtekio av., 10257 Vilnius, Lithuania
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10
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Liu J, Li SM. Genomics-Guided Efficient Identification of 2,5-Diketopiperazine Derivatives from Actinobacteria. Chembiochem 2023; 24:e202200502. [PMID: 36098493 PMCID: PMC10092475 DOI: 10.1002/cbic.202200502] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Revised: 09/12/2022] [Indexed: 02/04/2023]
Abstract
Secondary metabolites derived from microorganism constitute an important part of natural products. Mining of the microbial genomes revealed a large number of uncharacterized biosynthetic gene clusters, indicating their greater potential to synthetize specialized or secondary metabolites (SMs) than identified by classic fermentation and isolation approaches. Various bioinformatics tools have been developed to analyze and identify such gene clusters, thus accelerating significantly the mining process. Heterologous expression of an individual biosynthetic gene cluster has been proven as an efficient way to activate the genes and identify the encoded metabolites that cannot be detected under normal laboratory cultivation conditions. Herein, we describe a concept of genomics-guided approach by performing genome mining and heterologous expression to uncover novel CDPS-derived DKPs and functionally characterize novel tailoring enzymes embedded in the biosynthetic pathways. Recent works focused on the identification of the nucleobase-related and dimeric DKPs are also presented.
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Affiliation(s)
- Jing Liu
- Institut für Pharmazeutische Biologie und Biotechnologie, Fachbereich Pharmazie, Philipps-Universität Marburg, Robert-Koch-Straße 4, 35037, Marburg, Germany.,Current address: Department of Natural Products in Organismic Interactions, Max Planck Institute for Terrestrial Microbiology, Karl-von-Frisch-Straße 10, 35043, Marburg, Germany
| | - Shu-Ming Li
- Institut für Pharmazeutische Biologie und Biotechnologie, Fachbereich Pharmazie, Philipps-Universität Marburg, Robert-Koch-Straße 4, 35037, Marburg, Germany
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11
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Bio-Fabrication of ZnONPs from Alkalescent Nucleoside Antibiotic to Control Rice Blast: Impact on Pathogen ( Magnaporthe grisea) and Host (Rice). Int J Mol Sci 2023; 24:ijms24032778. [PMID: 36769154 PMCID: PMC9918085 DOI: 10.3390/ijms24032778] [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: 12/31/2022] [Revised: 01/25/2023] [Accepted: 01/26/2023] [Indexed: 02/05/2023] Open
Abstract
In the traditional method of the bio-fabrication of zinc oxide nanoparticles (ZnONPs), bacterial strains face metal toxicity and antimicrobial action. In the current study, an alkalescent nucleoside antibiotic was mixed with zinc hexanitrate to fabricate the ZnONPs. An integrated approach of DIAION HP-20 macroporous resin and sephadex LH-20 column chromatography was adopted to separate and purify alkalescent nucleoside AN03 from Streptomyces koyanogensis. Alkalescent nucleoside was confirmed by the Doskochilova solvent system. The bio-fabricated ZnONPs were characterized by using Fourier transform infrared (FTIR), X-ray diffraction (XRD), and transmission electron microscopy (TEM) analyses. The XRD spectrum and the TEM images confirmed the crystallinity and the spherical shape of the ZnONPs with an average size of 22 nm. FTIR analysis showed the presence of functional groups, which confirmed the bio-fabrication of ZnONPs from alkalescent nucleoside ANO3. In-vitro studies showed that 75 μg/mL of ZnONPs had a strong inhibitory zone (28.39 mm) against the Magnaporthe grisea and significantly suppressed the spore germination. SEM and TEM observations respectively revealed that ZnONPs caused breakage in hyphae and could damage the cells of M. grisea. Greenhouse experiments revealed that the foliar spray of ZnONPs could control the rice blast disease by 98%. Results also revealed that ZnONPs had positive effects on the growth of the rice plant. The present study suggested that ZnONPs could be fabricated from microbe-derived nucleoside antibiotics without facing the problems of metal toxicity and antimicrobial action, thus overcoming the problem of pathogen resistance. This could be a potent biocontrol agent in rice blast disease management.
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12
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Reddy DS, Sinha A, Kurjogi MM, Shanavaz H, Kumar A. Design, synthesis, molecular docking, and biological evaluation of coumarin-thymidine analogs as potent anti-TB agents. Arch Pharm (Weinheim) 2023; 356:e2200633. [PMID: 36634969 DOI: 10.1002/ardp.202200633] [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: 12/01/2022] [Revised: 12/21/2022] [Accepted: 12/23/2022] [Indexed: 01/14/2023]
Abstract
With the intent to discover new antituberculosis (TB) compounds, coumarin-thymidine analogs were synthesized using second-order nucleophilic substitution reactions of bromomethyl coumarin with thymidine. The newly synthesized coumarin-thymidine conjugates (1a-l) were characterized using IR, NMR, GC-MS, and CHN elemental analysis. The novel conjugates were found to exhibit potent anti-TB activity against the Mycobacterium tuberculosis H37 Rv strain, with minimum inhibitory concentrations (MIC) of the active compounds ranging between 0.012 and 0.482 µM. Compound 1k was established as the most active candidate with a MIC of 0.012 µM. The toxicity study on HEK cells confirmed the nontoxic nature of compounds 1e, 1h, 1i, 1j, and 1k. Also, the most active compounds (1k, 1j, and 1e) were stable in the pH range from 2.5 to 10, indicating compatibility with the biophysical environment. Based on the pKa studies, compounds 1k, 1j, and 1e are capable of crossing lipid-membrane barriers and acting on target cells. Molecular docking studies on the M. tuberculosis β-oxidation trifunctional enzyme (PDB ID: 7O4V) were conducted to investigate the mechanisms of anti-TB activity. All compounds showed excellent hydrogen binding interactions and exceptional docking scores against M. tuberculosis, which was in accordance with the results. Compounds 1a-l possessed excellent affinity to proteins, with binding energies ranging from -7.4 to -8.7 kcal/mol.
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Affiliation(s)
- Dinesh S Reddy
- Centre for Nano and Material Sciences, Jain (Deemed-to-be-University), Bangalore, Karnataka, India
| | - Anamika Sinha
- Centre for Nano and Material Sciences, Jain (Deemed-to-be-University), Bangalore, Karnataka, India
| | - Mahantesh M Kurjogi
- Multi-Disciplinary Research Unit, Karnataka Institute of Medical Sciences, Hubli, Karnataka, India
| | - H Shanavaz
- Department of Chemistry, Faculty of Engineering and Technology, Jain University, Bangalore, Karnataka, India
| | - Amit Kumar
- Centre for Nano and Material Sciences, Jain (Deemed-to-be-University), Bangalore, Karnataka, India
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13
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Singh R, Thakur L, Kumar A, Singh S, Kumar S, Kumar M, Kumar Y, Kumar N. Comparison of freeze-thaw and sonication cycle-based methods for extracting AMR-associated metabolites from Staphylococcus aureus. Front Microbiol 2023; 14:1152162. [PMID: 37180233 PMCID: PMC10174324 DOI: 10.3389/fmicb.2023.1152162] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2023] [Accepted: 04/10/2023] [Indexed: 05/16/2023] Open
Abstract
Emerging antimicrobial resistance (AMR) among Gram-positive pathogens, specifically in Staphylococcus aureus (S. aureus), is becoming a leading public health concern demanding effective therapeutics. Metabolite modulation can improve the efficacy of existing antibiotics and facilitate the development of effective therapeutics. However, it remained unexplored for drug-resistant S. aureus (gentamicin and methicillin-resistant), primarily due to the dearth of optimal metabolite extraction protocols including a protocol for AMR-associated metabolites. Therefore, in this investigation, we have compared the performance of the two most widely used methods, i.e., freeze-thaw cycle (FTC) and sonication cycle (SC), alone and in combination (FTC + SC), and identified the optimal method for this purpose. A total of 116, 119, and 99 metabolites were identified using the FTC, SC, and FTC + SC methods, respectively, leading to the identification of 163 metabolites cumulatively. Out of 163, 69 metabolites were found to be associated with AMR in published literature consisting of the highest number of metabolites identified by FTC (57) followed by SC (54) and FTC + SC (40). Thus, the performances of FTC and SC methods were comparable with no additional benefits of combining both. Moreover, each method showed biasness toward specific metabolite(s) or class of metabolites, suggesting that the choice of metabolite extraction method shall be decided based on the metabolites of interest in the investigation.
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Affiliation(s)
- Rita Singh
- Translational Health Science and Technology Institute, NCR Biotech Science Cluster, Faridabad, India
- Jawaharlal Nehru University, Delhi, India
| | - Lovnish Thakur
- Translational Health Science and Technology Institute, NCR Biotech Science Cluster, Faridabad, India
- Jawaharlal Nehru University, Delhi, India
| | - Ashok Kumar
- Translational Health Science and Technology Institute, NCR Biotech Science Cluster, Faridabad, India
| | - Sevaram Singh
- Translational Health Science and Technology Institute, NCR Biotech Science Cluster, Faridabad, India
- Jawaharlal Nehru University, Delhi, India
| | - Shailesh Kumar
- Translational Health Science and Technology Institute, NCR Biotech Science Cluster, Faridabad, India
| | - Manoj Kumar
- Translational Health Science and Technology Institute, NCR Biotech Science Cluster, Faridabad, India
| | - Yashwant Kumar
- Translational Health Science and Technology Institute, NCR Biotech Science Cluster, Faridabad, India
- *Correspondence: Yashwant Kumar,
| | - Niraj Kumar
- Translational Health Science and Technology Institute, NCR Biotech Science Cluster, Faridabad, India
- Niraj Kumar,
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14
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Pasternak ARO, Balunas MJ, Zechel DL. Discovery of 3'- O-β-Glucosyltubercidin and the Nucleoside Specific Glycosyltransferase AvpGT through Genome Mining. ACS Chem Biol 2022; 17:3507-3514. [PMID: 36356213 DOI: 10.1021/acschembio.2c00707] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
A genome mining approach was used to identify a hybrid tubercidin-nucleocidin biosynthetic gene cluster (BGC) in Streptomyces sp. AVP053U2. Analysis of culture extracts by liquid chromatography-mass spectrometry revealed the presence of a glucosylated tubercidin derivative. A gene, avpGT, was identified within the hybrid cluster that has homology to the glucosyltransferase that is responsible for 3'-O-β-glucosylation of the fluorinated natural product nucleocidin. AvpGT was heterologously expressed and purified from Escherichia coli for in vitro characterization. AvpGT is active toward UDP-glucose and UDP-galactose as glycosyl donors and several nucleosides as acceptors. Kinetic analysis revealed that AvpGT is most specific for UDP-glucose [kcat/KMapp = (1.1 ± 0.3) × 105 M-1·s-1] as the glycosyl donor and tubercidin [kcat/KMapp = (5.3 ± 1.8) × 104 M-1·s-1] as the glycosyl acceptor. NMR spectroscopic analysis revealed the product of this reaction to be 3'-O-β-glucopyranosyl tubercidin. A sequence analysis of AvpGT reveals a family of nucleoside-specific GTs, which may be used as markers of BGCs that produce glycosylated nucleosides.
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Affiliation(s)
- A R Ola Pasternak
- Department of Chemistry, Queen's University, Kingston, K7L 3N6 Ontario, Canada
| | - Marcy J Balunas
- Departments of Microbiology and Immunology and Medicinal Chemistry, University of Michigan, Ann Arbor, 48109 Michigan, United States
| | - David L Zechel
- Department of Chemistry, Queen's University, Kingston, K7L 3N6 Ontario, Canada
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15
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Duan XY, Tian Y, Song ZQ, Song LP, Lin WB, Wang C, Yang H, Lu XY, Ji XJ, Liu HH. High-level de novo biosynthesis of cordycepin by systems metabolic engineering in Yarrowia lipolytica. BIORESOURCE TECHNOLOGY 2022; 363:127862. [PMID: 36041680 DOI: 10.1016/j.biortech.2022.127862] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/15/2022] [Revised: 08/23/2022] [Accepted: 08/24/2022] [Indexed: 06/15/2023]
Abstract
Cordycepin is a nucleoside antibiotic with various biological activities, which has wide applications in the area of cosmetic and medicine industries. However, the current production of cordycepin is costly and time-consuming. To construct the promising cell factory for high-level cordycepin production, firstly, the design and construction of cordycepin biosynthetic pathway were performed in Yarrowia lipolytica. Secondly, the adaptivity between cordycepin biosynthetic pathway and Y. lipolytica was enhanced by enzyme fusion and integration site engineering. Then, the production of cordycepin was improved by the enhancement of adenosine supply. Furthermore, through modular engineering, the production of cordycepin was achieved at 3588.59 mg/L from glucose. Finally, 3249.58 mg/L cordycepin with a yield of 76.46 mg/g total sugar was produced by the engineered strain from the mixtures of glucose and molasses. This research is the first report on the de novo high-level production of cordycepin in the engineered Y. lipolytica.
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Affiliation(s)
- Xi-Yu Duan
- College of Bioscience and Biotechnology, Hunan Agricultural University, No. 1 Nongda Road, Changsha 410128, People's Republic of China
| | - Yun Tian
- College of Bioscience and Biotechnology, Hunan Agricultural University, No. 1 Nongda Road, Changsha 410128, People's Republic of China
| | - Ze-Qi Song
- College of Bioscience and Biotechnology, Hunan Agricultural University, No. 1 Nongda Road, Changsha 410128, People's Republic of China
| | - Li-Ping Song
- College of Bioscience and Biotechnology, Hunan Agricultural University, No. 1 Nongda Road, Changsha 410128, People's Republic of China
| | - Wen-Bo Lin
- College of Bioscience and Biotechnology, Hunan Agricultural University, No. 1 Nongda Road, Changsha 410128, People's Republic of China
| | - Chong Wang
- College of Bioscience and Biotechnology, Hunan Agricultural University, No. 1 Nongda Road, Changsha 410128, People's Republic of China
| | - Hui Yang
- College of Bioscience and Biotechnology, Hunan Agricultural University, No. 1 Nongda Road, Changsha 410128, People's Republic of China
| | - Xiang-Yang Lu
- College of Bioscience and Biotechnology, Hunan Agricultural University, No. 1 Nongda Road, Changsha 410128, People's Republic of China
| | - Xiao-Jun Ji
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, No. 30 South Puzhu Road, Nanjing 211816, People's Republic of China
| | - Hu-Hu Liu
- College of Bioscience and Biotechnology, Hunan Agricultural University, No. 1 Nongda Road, Changsha 410128, People's Republic of China.
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16
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Pentostatin Biosynthesis Pathway Elucidation and Its Application. FERMENTATION 2022. [DOI: 10.3390/fermentation8090459] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Pentostatin (PNT), a nucleoside antibiotic with a 1,3-diazo ring structure, is distributed in several actinomycetes and fungi species. Its special structure makes PNT possess a wide spectrum of biological and pharmacological properties, such as antibacterial, antitrypanosomal, anticancer, antiviral, herbicidal, insecticidal, and immunomodulatory effects. Because of the promising adenosine deaminase inhibitory activity of PNT, its extensive application in the clinical treatment of malignant tumors has been extensively studied. However, the fermentation level of microbial-derived PNT is low and cannot meet medical needs. Because the biosynthesis pathway of PNT is obscure, only high-yield mutant screening and optimization of medium components and fermentation processes have been conducted for enhancing its production. Recently, the biosynthesis pathways of PNT in actinomycetes and fungi hosts have been revealed successively, and the large-scale production of PNT by systematic metabolic engineering will become an inevitable trend. Therefore, this review covers all aspects of PNT research, in which major advances in understanding the resource microorganisms, mechanism of action, and biosynthesis pathway of PNT were achieved and diverse clinical applications of PNT were emphasized, and it will lay the foundation for commercial transformation and industrial technology of PNT based on systematic metabolic engineering.
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17
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Molecular modelling, DFT, molecular dynamics simulations, synthesis and antimicrobial potential studies of heterocyclic nucleoside mimetics. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.134071] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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18
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Wang S, Zhang J, Wei F, Li W, Wen L. Facile Synthesis of Sugar Nucleotides from Common Sugars by the Cascade Conversion Strategy. J Am Chem Soc 2022; 144:9980-9989. [PMID: 35583341 DOI: 10.1021/jacs.2c03138] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Sugar nucleotides are essential glycosylation donors in the carbohydrate metabolism. Naturally, most sugar nucleotides are derived from a limited number of common sugar nucleotides by de novo biosynthetic pathways, undergoing single or multiple reactions such as dehydration, epimerization, isomerization, oxidation, reduction, amination, and acetylation reactions. However, it is widely believed that such complex bioconversions are not practical for synthetic use due to the high preparation cost and great difficulties in product isolation. Therefore, most of the discovered sugar nucleotides are not readily available. Here, based on de novo biosynthesis mainly, 13 difficult-to-access sugar nucleotides were successfully prepared from two common sugars D-Man and sucrose in high yields, at a multigram scale, and without the need for tedious purification manipulations. This work demonstrated that de novo biosynthesis, although undergoing complex reactions, is also practical and cost-effective for synthetic use by employing a cascade conversion strategy.
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Affiliation(s)
- Shasha Wang
- School of Chinese Materia Medica, Nanjing University of Chinese Medicine, Nanjing, Jiang Su 210023, China
| | - Jiabin Zhang
- Carbohydrate-Based Drug Research Center, Shanghai Institute of Materia Media, Chinese Academy of Sciences, Shanghai 201203, China.,Zhongshan Institute for Drug Discovery, Shanghai Institute of Materia Media, Chinese Academy of Sciences, Zhongshan, Guangdong 528400, China
| | - Fangyu Wei
- Carbohydrate-Based Drug Research Center, Shanghai Institute of Materia Media, Chinese Academy of Sciences, Shanghai 201203, China.,University of Chinese Academy of Sciences, Beijing 100049, China
| | - Wanjin Li
- Carbohydrate-Based Drug Research Center, Shanghai Institute of Materia Media, Chinese Academy of Sciences, Shanghai 201203, China
| | - Liuqing Wen
- Carbohydrate-Based Drug Research Center, Shanghai Institute of Materia Media, Chinese Academy of Sciences, Shanghai 201203, China.,University of Chinese Academy of Sciences, Beijing 100049, China.,School of Chinese Materia Medica, Nanjing University of Chinese Medicine, Nanjing, Jiang Su 210023, China
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19
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Zheng Y, Zhang J, Meisner J, Li W, Luo Y, Wei F, Wen L. Cofactor-Driven Cascade Reactions Enable the Efficient Preparation of Sugar Nucleotides. Angew Chem Int Ed Engl 2022; 61:e202115696. [PMID: 35212445 DOI: 10.1002/anie.202115696] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2021] [Indexed: 12/14/2022]
Abstract
Glycosylation is catalyzed by glycosyltransferases using sugar nucleotides or occasionally lipid-linked phosphosugars as donors. However, only very few common sugar nucleotides that occur in humans can be obtained readily, while the majority of sugar nucleotides that exist in bacteria, plants, archaea, or viruses cannot be synthesized in sufficient quantities by either enzymatic or chemical synthesis. The limited availability of such rare sugar nucleotides is one of the major obstacles that has greatly hampered progress in glycoscience. Herein we describe a general cofactor-driven cascade conversion strategy for the efficient synthesis of sugar nucleotides. The described strategy allows the large-scale preparation of rare sugar nucleotides from common sugars in high yields and without the need for tedious purification processes.
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Affiliation(s)
- Yuan Zheng
- Carbohydrate-Based Drug Research Center, Shanghai Institute of Materia Media, Chinese Academy of Sciences, Shanghai, 201203, China
| | - Jiabin Zhang
- Carbohydrate-Based Drug Research Center, Shanghai Institute of Materia Media, Chinese Academy of Sciences, Shanghai, 201203, China.,Zhongshan Institute for Drug Discovery, Shanghai Institute of Materia Media, Chinese Academy of Sciences, Zhongshan, Guangdong, 528400, China
| | | | - Wanjin Li
- Carbohydrate-Based Drug Research Center, Shanghai Institute of Materia Media, Chinese Academy of Sciences, Shanghai, 201203, China
| | - Yawen Luo
- Carbohydrate-Based Drug Research Center, Shanghai Institute of Materia Media, Chinese Academy of Sciences, Shanghai, 201203, China.,University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Fangyu Wei
- Carbohydrate-Based Drug Research Center, Shanghai Institute of Materia Media, Chinese Academy of Sciences, Shanghai, 201203, China.,University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Liuqing Wen
- Carbohydrate-Based Drug Research Center, Shanghai Institute of Materia Media, Chinese Academy of Sciences, Shanghai, 201203, China.,University of Chinese Academy of Sciences, Beijing, 100049, China
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20
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Biosynthesis and Chemical Synthesis of Albomycin Nucleoside Antibiotics. Antibiotics (Basel) 2022; 11:antibiotics11040438. [PMID: 35453190 PMCID: PMC9032320 DOI: 10.3390/antibiotics11040438] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2022] [Revised: 03/21/2022] [Accepted: 03/21/2022] [Indexed: 11/17/2022] Open
Abstract
The widespread emergence of antibiotic-resistant bacteria highlights the urgent need for new antimicrobial agents. Albomycins are a group of naturally occurring sideromycins with a thionucleoside antibiotic conjugated to a ferrichrome-type siderophore. The siderophore moiety serves as a vehicle to deliver albomycins into bacterial cells via a “Trojan horse” strategy. Albomycins function as specific inhibitors of seryl-tRNA synthetases and exhibit potent antimicrobial activities against both Gram-negative and Gram-positive bacteria, including many clinical pathogens. These distinctive features make albomycins promising drug candidates for the treatment of various bacterial infections, especially those caused by multidrug-resistant pathogens. We herein summarize findings on the discovery and structure elucidation, mechanism of action, biosynthesis and immunity, and chemical synthesis of albomcyins, with special focus on recent advances in the biosynthesis and chemical synthesis over the past decade (2012–2022). A thorough understanding of the biosynthetic pathway provides the basis for pathway engineering and combinatorial biosynthesis to create new albomycin analogues. Chemical synthesis of natural congeners and their synthetic analogues will be useful for systematic structure–activity relationship (SAR) studies, and thereby assist the design of novel albomycin-derived antimicrobial agents.
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21
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Liu B, Wei Q, Yang M, Shi L, Zhang K, Ge B. Effect of toyF on wuyiencin and toyocamycin production by Streptomyces albulus CK-15. World J Microbiol Biotechnol 2022; 38:65. [PMID: 35229201 DOI: 10.1007/s11274-022-03234-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2021] [Accepted: 01/12/2022] [Indexed: 12/24/2022]
Abstract
Streptomyces albulus CK-15 produces various secondary metabolites, including the antibiotics wuyiencin and toyocamycin, which can reportedly control a broad range of plant fungal diseases. The production of these nucleoside antibiotics in CK-15 is regulated by two biosynthesis gene clusters. To investigate the potential effect of toyocamycin biosynthesis on wuyiencin production, we herein generated S. albulus strains in which a key gene in the toyocamycin biosynthesis gene cluster, namely toyF, was either deleted or overexpressed. The toyF deletion mutant ∆toyF did not produce toyocamycin, while the production of wuyiencin increased by 23.06% in comparison with that in the wild-type (WT) strain. In addition, ΔtoyF reached the highest production level of wuyiencin 4 h faster than the WT strain (60 h vs. and 64 h). Further, toyocamycin production by the toyF overexpression strain was two-fold higher than by the WT strain, while wuyiencin production was reduced by 29.10%. qRT-PCR showed that most genes in the toyocamycin biosynthesis gene cluster were expressed at lower levels in ∆toyF as compared with those in the WT strain, while the expression levels of genes in the wuyiencin biosynthesis gene cluster were upregulated. Finally, the growth rate of ∆toyF was much faster than that of the WT strain when cultured on solid or liquid medium. Based on our findings, we report that in industrial fermentation processes, ∆toyF has the potential to increase the production of wuyiencin and reduce the timeframe of fermentation.
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Affiliation(s)
- Binghua Liu
- State Key Laboratory of Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, China.,College of Agriculture and Forestry Science, Linyi University, Linyi, China
| | - Qiuhe Wei
- State Key Laboratory of Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Miaoling Yang
- State Key Laboratory of Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Liming Shi
- State Key Laboratory of Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Kecheng Zhang
- State Key Laboratory of Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Beibei Ge
- State Key Laboratory of Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, China.
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22
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Wen L, Zheng Y, Zhang J, Meisner J, Li W, Luo Y, Wei F. Cofactor‐Driven Cascade Reactions Enable the Efficient Preparation of Sugar Nucleotides. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202115696] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Liuqing Wen
- Shanghai Institute of Materia Medica Chinese Academy of Sciences Chemistry 501 Haike Road 30303 shanghai CHINA
| | - Yuan Zheng
- Shanghai Institute of Materia Medica Chinese Academy of Sciences Carbohydrate-based drug research center CHINA
| | - Jiabinq Zhang
- Shanghai Institute of Materia Medica Chinese Academy of Sciences Carbohydrate-based drug research center CHINA
| | | | - Wanjin Li
- Shanghai Institute of Materia Medica Chinese Academy of Sciences carbohydrate-based drug research center CHINA
| | - Yawen Luo
- Shanghai Institute of Materia Medica Chinese Academy of Sciences cArbohydrate-based drug research center CHINA
| | - Fangyu Wei
- Shanghai Institute of Materia Medica Chinese Academy of Sciences carbohydrate-based drug research center CHINA
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23
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Savateev KV, Fedotov VV, Slepukhin PA, Ulomsky E, Rusinov VL. Regiospecific way to N9-alkylated thioxanthines. NEW J CHEM 2022. [DOI: 10.1039/d2nj03002k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A regiospecific way to N9-alkylated thioxanthines as novel acyclic nucleoside analogues has been developed. This approach is based on a cleavage methodology involving the construction of a target heterocyclic scaffold...
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24
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Zhang WH, Wang F, Wang YL, You S, Pan HX, Tang GL. Identification and Characterization of Enzymes Catalyzing Early Steps in Miharamycin and Amipurimycin Biosynthesis. Org Lett 2021; 23:8761-8765. [PMID: 34747180 DOI: 10.1021/acs.orglett.1c03254] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The biochemical elucidation of the early biosynthetic pathways of miharamycins and amipurimycin revealed the roles of several enzymes, which include GMP hydrolase, represented by MihD/ApmD, and hypothetical proteins, MihI/ApmI, unexpectedly exhibiting the dual function of the guanylglucuronic acid assembly and GMP cleavage. In addition, MihE, a carbonyl reductase that functions on the C2 branch of high-carbon sugars, and MihF, a rare guanine O-methyltransferase, were also functionally verified.
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Affiliation(s)
- Wen-He Zhang
- School of Life Sciences and Biopharmaceuticals, Shenyang Pharmaceutical University, Benxi 117004, China
| | - Fei Wang
- School of Chemistry and Materials Science, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences (CAS), Hangzhou 310024, China
| | - Yi-Lin Wang
- School of Chemistry and Materials Science, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences (CAS), Hangzhou 310024, China
| | - Song You
- School of Life Sciences and Biopharmaceuticals, Shenyang Pharmaceutical University, Benxi 117004, China
| | - Hai-Xue Pan
- School of Chemistry and Materials Science, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences (CAS), Hangzhou 310024, China.,State Key Laboratory of Bio-organic and Natural Products Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of CAS, CAS, Shanghai 200032, China
| | - Gong-Li Tang
- School of Chemistry and Materials Science, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences (CAS), Hangzhou 310024, China.,State Key Laboratory of Bio-organic and Natural Products Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of CAS, CAS, Shanghai 200032, China
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25
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Berlinck RGS, Crnkovic CM, Gubiani JR, Bernardi DI, Ióca LP, Quintana-Bulla JI. The isolation of water-soluble natural products - challenges, strategies and perspectives. Nat Prod Rep 2021; 39:596-669. [PMID: 34647117 DOI: 10.1039/d1np00037c] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Covering period: up to 2019Water-soluble natural products constitute a relevant group of secondary metabolites notably known for presenting potent biological activities. Examples are aminoglycosides, β-lactam antibiotics, saponins of both terrestrial and marine origin, and marine toxins. Although extensively investigated in the past, particularly during the golden age of antibiotics, hydrophilic fractions have been less scrutinized during the last few decades. This review addresses the possible reasons on why water-soluble metabolites are now under investigated and describes approaches and strategies for the isolation of these natural compounds. It presents examples of several classes of hydrosoluble natural products and how they have been isolated. Novel stationary phases and chromatography techniques are also reviewed, providing a perspective towards a renaissance in the investigation of water-soluble natural products.
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Affiliation(s)
- Roberto G S Berlinck
- Instituto de Química de São Carlos, Universidade de São Paulo, CP 780, CEP 13560-970, São Carlos, SP, Brazil.
| | - Camila M Crnkovic
- Faculdade de Ciências Farmacêuticas, Universidade de São Paulo, CEP 05508-000, São Paulo, SP, Brazil
| | - Juliana R Gubiani
- Instituto de Química de São Carlos, Universidade de São Paulo, CP 780, CEP 13560-970, São Carlos, SP, Brazil.
| | - Darlon I Bernardi
- Instituto de Química de São Carlos, Universidade de São Paulo, CP 780, CEP 13560-970, São Carlos, SP, Brazil.
| | - Laura P Ióca
- Instituto de Química de São Carlos, Universidade de São Paulo, CP 780, CEP 13560-970, São Carlos, SP, Brazil.
| | - Jairo I Quintana-Bulla
- Instituto de Química de São Carlos, Universidade de São Paulo, CP 780, CEP 13560-970, São Carlos, SP, Brazil.
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26
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Activation of Cryptic Antibiotic Biosynthetic Gene Clusters Guided by RNA-seq Data from Both Streptomyces ansochromogenes and ΔwblA. Antibiotics (Basel) 2021; 10:antibiotics10091097. [PMID: 34572679 PMCID: PMC8465540 DOI: 10.3390/antibiotics10091097] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Revised: 08/27/2021] [Accepted: 09/07/2021] [Indexed: 12/13/2022] Open
Abstract
With the increase of drug resistance caused by the improper use and abuse of antibiotics, human beings are facing a global health crisis. Sequencing of Streptomyces genomes revealed the presence of an important reservoir of secondary metabolic gene clusters for previously unsuspected products with potentially valuable bioactivity. It has therefore become necessary to activate these cryptic pathways through various strategies. Here, we used RNA-seq data to perform a comparative transcriptome analysis of Streptomyces ansochromogenes (wild-type, WT) and its global regulatory gene disruption mutant ΔwblA, in which some differentially expressed genes are associated with the abolished nikkomycin biosynthesis and activated tylosin analogue compounds (TACs) production, and also with the oviedomycin production that is induced by the genetic manipulation of two differentially expressed genes (san7324 and san7324L) encoding RsbR. These results provide a significant clue for the discovery of new drug candidates and the activation of cryptic biosynthetic gene clusters.
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27
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Chaurasia H, Singh VK, Mishra R, Yadav AK, Ram NK, Singh P, Singh RK. Molecular modelling, synthesis and antimicrobial evaluation of benzimidazole nucleoside mimetics. Bioorg Chem 2021; 115:105227. [PMID: 34399320 DOI: 10.1016/j.bioorg.2021.105227] [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: 05/26/2021] [Revised: 07/20/2021] [Accepted: 07/28/2021] [Indexed: 01/23/2023]
Abstract
A series of new N-1-(β-d-ribofuranosyl) benzimidazole derivatives has been designed using in silico methods and synthesized as probable antimicrobial agents. Further, the compounds were assessed for their antibacterial and antifungal activity. Antibacterial screening was done by employing broth micro-dilution method and compounds exhibited excellent inhibitory activity (MIC, 50-1.56 µg/mL) against different human pathogenic bacteria, viz. B. cerus, B. subtilis, S. aureus, E. coli and P. aeruginosa and drug resistant strain (DRS) of E. coli. A great synergistic effect was observed during evaluation of ∑FIC, where a combination study was performed using standard references, viz. chloramphenicol and kanamycin. The MIC data obtained from different methods of combination approach revealed 4-128 fold more potency compared to compounds tested alone. The results clearly indicated the possibility of these compounds as active ingredients of drug regimen used against MDR strains. Antifungal screening were also performed employing two different methods, viz. serial dilution method and zone inhibition method, clearly indicated that compounds were also potentially active against several species of pathogenic fungal strains, viz. A. flavus, A. niger, F. oxysporum and C. albicans. The assessment of structure activity relationship (SAR) clearly revealed that presence of less polar and more hydrophobic substituents positively favours the antibacterial activity, conversely, more polar and hydrophilic substituents favours the antifungal activities. Thus, the results positively endorsed the compounds as potent antibacterial and antifungal agents which could be developed as possible drug regimens.
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Affiliation(s)
- Himani Chaurasia
- Bioorganic Research Laboratory, Department of Chemistry, University of Allahabad, Prayagraj 211002, India
| | - Vishal K Singh
- Bioorganic Research Laboratory, Department of Chemistry, University of Allahabad, Prayagraj 211002, India
| | - Richa Mishra
- Bioorganic Research Laboratory, Department of Chemistry, University of Allahabad, Prayagraj 211002, India
| | - Aditya K Yadav
- Bioorganic Research Laboratory, Department of Chemistry, University of Allahabad, Prayagraj 211002, India
| | - Nand K Ram
- Bioorganic Research Laboratory, Department of Chemistry, University of Allahabad, Prayagraj 211002, India
| | - Prashant Singh
- Bioorganic Research Laboratory, Department of Chemistry, University of Allahabad, Prayagraj 211002, India
| | - Ramendra K Singh
- Bioorganic Research Laboratory, Department of Chemistry, University of Allahabad, Prayagraj 211002, India.
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28
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Nelli MR, Heitmeier KN, Looper RE. Dissecting the Nucleoside Antibiotics as Universal Translation Inhibitors. Acc Chem Res 2021; 54:2798-2811. [PMID: 34152729 DOI: 10.1021/acs.accounts.1c00221] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Without question, natural products have provided the lion share of leads, if not drugs themselves, for the treatment of bacterial infections. The bacterial arms race, fueled by selection and survival pressures has delivered a natural arsenal of small molecules targeting the most essential of life processes. Antibiotics that target these critical intracellular processes face the formidable defense of both penetrating a bacterial cell membrane and avoiding efflux to exert their effect. These challenges are especially effective in Gram-negative (Gram-(-)) bacteria, which have a double membrane structure and efficient efflux systems from the combination of outer-membrane porins and inner membrane proton pumps. In this landscape of offense and defense, our clinically used antibiotics have only successfully targeted three intracellular processes for therapeutic intervention in Gram-(-) bacteria: dihydrofolate biosynthesis, transcription, and translation. Not surprisingly, such critical survival machinery is a popular target for bacterial warfare, and eight of our 14 classes of commonly used antibiotics target translation with the bacterial ribosome remaining one the most vetted targets for antimicrobial therapy. On the plus side, its anionic character attracts cationic inhibitors, which are generally more capable of penetrating the bacterial cell wall, and clinical resistance rates are usually manageable as mutation of such a highly evolved machine is difficult. On the down side, this highly evolved machine renders it difficult to inhibit selectively, and the inhibition of prokaryotic translation versus both eukaryotic cellular and mitochondrial translation is critical for clinical development and minimization of undesired toxicities.A class of natural products known as the "nucleoside antibiotics" have historically been recognized as universal inhibitors of the ribosome and can inhibit translation in prokaryotes, eukaryotes, and archaea. While they have served an essential role in dissecting the biochemical underpinnings of the enzymatic functions of the ribosome, they have not proven therapeutically useful as they target the highly conserved rRNA in the P-site and are toxic to mammalian cells. In this Account, we describe our studies on the natural product amicetin, a nucleoside antibiotic that we have demonstrated to break the rule of being a universal translation inhibitor. While the cytosine of amicetin mimics C75 of the 3'-CCA tail of the P-site tRNA akin to other nucleoside antibiotics, we advance a hypothesis that amicetin's unique interaction with the ribosomal protein uL16 exploits an untapped mechanism for selectively targeting the bacterial ribosome. A complex molecule comprised of a nucleoside, carbohydrates and amino acids, amicetin is also chemically unstable. Our initial attempts to stabilize and simplify this scaffold are presented with the ultimate goal of rebuilding the compound with improved penetrance to bacterial cells. If successful, this scaffold would demonstrate a path forward for a new class of antibiotics capable of selectively targeting the ribosomal P-site.
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Affiliation(s)
- Matthew R. Nelli
- Department of Chemistry, University of Utah, Salt Lake City Utah 84103, United States
| | - Kendall N. Heitmeier
- Department of Chemistry, University of Utah, Salt Lake City Utah 84103, United States
| | - Ryan E. Looper
- Department of Chemistry, University of Utah, Salt Lake City Utah 84103, United States
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29
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Xiao L, Niu HJ, Qu TL, Zhang XF, Du FY. Streptomyces sp. FX13 inhibits fungicide-resistant Botrytis cinerea in vitro and in vivo by producing oligomycin A. PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY 2021; 175:104834. [PMID: 33993959 DOI: 10.1016/j.pestbp.2021.104834] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/09/2020] [Revised: 03/23/2021] [Accepted: 03/25/2021] [Indexed: 06/12/2023]
Abstract
Botrytis cinerea is one of the most destructive fungal pathogens which can cause gray mold diseases of numerous plant species, while the frequent applications of fungicides also result in the fungicide-resistances of B. cinerea. In this study, a new Streptomyces strain FX13 was obtained to show biocontrol potentials against fungicide-resistant B. cinerea B3-4. Its in vitro and in vivo antifungal mechanisms were further investigated. The results showed that the culture extract of strain FX13 could significantly inhibit the mycelia growth of B. cinerea B3-4 with the EC50 value of 5.40 mg L-1, which was greatly lower than those of pyrisoxazole, boscalid and azoxystrobin. Further bioassay-guided isolation of the extract had yielded the antifungal component SA1, which was elucidated as a 26-membered polyene macrolide of oligomycin A. SA1 could inhibit the mycelia growth, spore germination, germ tube elongation and sporogenesis of B. cinerea B3-4 in vitro, and also showed significant curative and protective effects against gray mold on grapes in vivo. Moreover, SA1 could result in the loss of membrane integrity and the leakage of cytoplasmic contents, which might be related to the accumulation of reactive oxygen species (ROS) and membrane lipid peroxidation. Besides, intracellular adenosine triphosphatase (ATPase) activity and adenosine triphosphate (ATP) content of B. cinerea B3-4 decreased after SA1-treatment. Overall, the oligomycin A-producing strain FX13 could inhibit fungicide-resistant B. cinerea B3-4 in vitro and in vivo, also highlighting its biocontrol potential against gray mold.
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Affiliation(s)
- Lin Xiao
- Institute of Green Pesticide Development, College of Chemistry and Pharmacy, Qingdao Agricultural University, Qingdao 266109, China
| | - Hong-Jie Niu
- Institute of Green Pesticide Development, College of Chemistry and Pharmacy, Qingdao Agricultural University, Qingdao 266109, China
| | - Tian-Li Qu
- Institute of Green Pesticide Development, College of Chemistry and Pharmacy, Qingdao Agricultural University, Qingdao 266109, China
| | - Xiang-Fei Zhang
- Institute of Green Pesticide Development, College of Chemistry and Pharmacy, Qingdao Agricultural University, Qingdao 266109, China
| | - Feng-Yu Du
- Institute of Green Pesticide Development, College of Chemistry and Pharmacy, Qingdao Agricultural University, Qingdao 266109, China; Shandong Province Key Laboratory of Applied Mycology, Qingdao Agricultural University, Qingdao 266109, China.
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30
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Mendoza JA, Pineda RY, Nguyen M, Tellez M, Awad AM. Molecular docking studies, in-silico ADMET predictions and synthesis of novel PEGA-nucleosides as antimicrobial agents targeting class B1 metallo-β-lactamases. In Silico Pharmacol 2021; 9:33. [PMID: 33936929 DOI: 10.1007/s40203-021-00092-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2021] [Accepted: 04/12/2021] [Indexed: 11/29/2022] Open
Abstract
Class B1 metallo-β-lactamases (MBLs) are metalloenzymes found in drug resistant bacteria. The enzyme requires zinc ions, along with conserved amino acid coordination for nucleophilic attack of the lactam ring to induce hydrolysis and inactivation of β-lactam and some carbapenem antibiotics. To this date there are no clinically relevant class B1 MBL inhibitors, however L-captopril has shown significant results against NDM-1, the most difficult MBL to inhibit. Herein, we report the synthesis and evaluation of novel nucleoside analogues modified with polyethylene glycolamino (PEGA) as potential inhibitors for class B1 MBLs. Molecular dynamics simulations, using internal coordinate mechanics (ICM) algorithm, were performed on subclass B1 enzyme complex models screened with twenty-one possible PEGA-nucleosides. Analogue A, 3'-deoxy-3'-(2-(2-hydroxyethoxy)ethanamino)-β-D-xylofuranosyluracil showed superior binding, with high specificity to the conserved zinc ions in the class B1 MBL active site by utilizing key β-lactam mimic points in the uridine nucleobase. The PEGA moiety showed chelating activity with zinc and disrupted the metal-binding amino acid geometry. In all subclass B1 proteins tested, analogue A had the most effective inhibition when compared to penicillin or L-captopril. Chemical synthesis was performed by condensation of the corresponding keto ribonucleoside with PEGA, followed by enantioselective reduction of the formed imine to produce the amino derivative with desired configuration. Pharmacokinetic and pharmacodynamic screenings revealed that PEGA-pyrimidine nucleosides are not toxic, nor violate Lipinski's rules. These results suggested that analogue A can be proposed as a potential metalloenzyme inhibitor against the widespread antibiotic resistant bacteria and is worth further in vitro and in vivo investigations.
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Affiliation(s)
- Jesica A Mendoza
- Department of Chemistry, California State University Channel Islands, Camarillo, CA 93012 USA
| | - Richard Y Pineda
- Department of Chemistry, California State University Channel Islands, Camarillo, CA 93012 USA
| | - Michelle Nguyen
- Department of Chemistry, California State University Channel Islands, Camarillo, CA 93012 USA
| | - Marisol Tellez
- Department of Chemistry, California State University Channel Islands, Camarillo, CA 93012 USA
| | - Ahmed M Awad
- Department of Chemistry, California State University Channel Islands, Camarillo, CA 93012 USA
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31
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Molecular mechanism of mureidomycin biosynthesis activated by introduction of an exogenous regulatory gene ssaA into Streptomyces roseosporus. SCIENCE CHINA-LIFE SCIENCES 2021; 64:1949-1963. [PMID: 33580428 PMCID: PMC7880210 DOI: 10.1007/s11427-020-1892-3] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 12/22/2020] [Accepted: 01/26/2021] [Indexed: 12/04/2022]
Abstract
Mureidomycins (MRDs), a group of unique uridyl-peptide antibiotics, exhibit antibacterial activity against the highly refractory pathogen Pseudomonas aeruginosa. Our previous study showed that the cryptic MRD biosynthetic gene cluster (BGC) mrd in Streptomyces roseosporus NRRL 15998 could not be activated by its endogenous regulator 02995 but activated by an exogenous activator SsaA from sansanmycin’s BGC ssa of Streptomyces sp. strain SS. Here we report the molecular mechanism for this inexplicable regulation. EMSAs and footprinting experiments revealed that SsaA could directly bind to a 14-nt palindrome sequence of 5′-CTGRCNNNNGTCAG-3′ within six promoter regions of mrd. Disruption of three representative target genes (SSGG-02981, SSGG-02987 and SSGG-02994) showed that the target genes directly controlled by SsaA were essential for MRD production. The regulatory function was further investigated by replacing six regions of SSGG-02995 with those of ssaA. Surprisingly, only the replacement of 343–450 nt fragment encoding the 115–150 amino acids (AA) of SsaA could activate MRD biosynthesis. Further bioinformatics analysis showed that the 115–150 AA situated between two conserved domains of SsaA. Our findings significantly demonstrate that constitutive expression of a homologous exogenous regulatory gene is an effective strategy to awaken cryptic biosynthetic pathways in Streptomyces.
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32
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Broad-Spectrum Antiviral Activity of 3'-Deoxy-3'-Fluoroadenosine against Emerging Flaviviruses. Antimicrob Agents Chemother 2021; 65:AAC.01522-20. [PMID: 33229424 DOI: 10.1128/aac.01522-20] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2020] [Accepted: 11/14/2020] [Indexed: 01/23/2023] Open
Abstract
Emerging flaviviruses are causative agents of severe and life-threatening diseases, against which no approved therapies are available. Among the nucleoside analogues, which represent a promising group of potentially therapeutic compounds, fluorine-substituted nucleosides are characterized by unique structural and functional properties. Despite having first been synthesized almost 5 decades ago, they still offer new therapeutic opportunities as inhibitors of essential viral or cellular enzymes active in nucleic acid replication/transcription or nucleoside/nucleotide metabolism. Here, we report evaluation of the antiflaviviral activity of 28 nucleoside analogues, each modified with a fluoro substituent at different positions of the ribose ring and/or heterocyclic nucleobase. Our antiviral screening revealed that 3'-deoxy-3'-fluoroadenosine exerted a low-micromolar antiviral effect against tick-borne encephalitis virus (TBEV), Zika virus, and West Nile virus (WNV) (EC50 values from 1.1 ± 0.1 μM to 4.7 ± 1.5 μM), which was manifested in host cell lines of neural and extraneural origin. The compound did not display any measurable cytotoxicity up to concentrations of 25 μM but had an observable cytostatic effect, resulting in suppression of cell proliferation at concentrations of >12.5 μM. Novel approaches based on quantitative phase imaging using holographic microscopy were developed for advanced characterization of antiviral and cytotoxic profiles of 3'-deoxy-3'-fluoroadenosine in vitro In addition to its antiviral activity in cell cultures, 3'-deoxy-3'-fluoroadenosine was active in vivo in mouse models of TBEV and WNV infection. Our results demonstrate that fluoro-modified nucleosides represent a group of bioactive molecules with excellent potential to serve as prospective broad-spectrum antivirals in antiviral research and drug development.
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McErlean M, Liu X, Cui Z, Gust B, Van Lanen SG. Identification and characterization of enzymes involved in the biosynthesis of pyrimidine nucleoside antibiotics. Nat Prod Rep 2021; 38:1362-1407. [PMID: 33404015 DOI: 10.1039/d0np00064g] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Covering: up to September 2020 Hundreds of nucleoside-based natural products have been isolated from various microorganisms, several of which have been utilized in agriculture as pesticides and herbicides, in medicine as therapeutics for cancer and infectious disease, and as molecular probes to study biological processes. Natural products consisting of structural modifications of each of the canonical nucleosides have been discovered, ranging from simple modifications such as single-step alkylations or acylations to highly elaborate modifications that dramatically alter the nucleoside scaffold and require multiple enzyme-catalyzed reactions. A vast amount of genomic information has been uncovered the past two decades, which has subsequently allowed the first opportunity to interrogate the chemically intriguing enzymatic transformations for the latter type of modifications. This review highlights (i) the discovery and potential applications of structurally complex pyrimidine nucleoside antibiotics for which genetic information is known, (ii) the established reactions that convert the canonical pyrimidine into a new nucleoside scaffold, and (iii) the important tailoring reactions that impart further structural complexity to these molecules.
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Affiliation(s)
- M McErlean
- Department of Pharmaceutical Science, College of Pharmacy, University of Kentucky, USA.
| | - X Liu
- Department of Pharmaceutical Science, College of Pharmacy, University of Kentucky, USA.
| | - Z Cui
- Department of Pharmaceutical Science, College of Pharmacy, University of Kentucky, USA.
| | - B Gust
- Pharmaceutical Institute, Department of Pharmaceutical Biology, University of Tübingen, Germany
| | - S G Van Lanen
- Department of Pharmaceutical Science, College of Pharmacy, University of Kentucky, USA.
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34
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Gong R, Yu L, Qin Y, Price NPJ, He X, Deng Z, Chen W. Harnessing synthetic biology-based strategies for engineered biosynthesis of nucleoside natural products in actinobacteria. Biotechnol Adv 2020; 46:107673. [PMID: 33276073 DOI: 10.1016/j.biotechadv.2020.107673] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Revised: 10/29/2020] [Accepted: 11/25/2020] [Indexed: 01/01/2023]
Abstract
Antibiotic resistance poses an increasing threat to global health, and it is urgent to reverse the present trend by accelerating development of new natural product derived drugs. Nucleoside antibiotics, a valuable family of promising natural products with remarkable structural features and diverse biological activities, have played significant roles in healthcare and for plant protection. Understanding the biosynthesis of these intricate molecules has provided a foundation for bioengineering the microbial cell factory towards yield enhancement and structural diversification. In this review, we summarize the recent progresses in employing synthetic biology-based strategies to improve the production of target nucleoside antibiotics. Moreover, we delineate the advances on rationally accessing the chemical diversities of natural nucleoside antibiotics.
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Affiliation(s)
- Rong Gong
- Key Laboratory of Combinatorial Biosynthesis and Drug Discovery, Ministry of Education, and School of Pharmaceutical Sciences, Wuhan University, Wuhan 430071, China
| | - Le Yu
- Key Laboratory of Combinatorial Biosynthesis and Drug Discovery, Ministry of Education, and School of Pharmaceutical Sciences, Wuhan University, Wuhan 430071, China
| | - Yini Qin
- Key Laboratory of Combinatorial Biosynthesis and Drug Discovery, Ministry of Education, and School of Pharmaceutical Sciences, Wuhan University, Wuhan 430071, China
| | - Neil P J Price
- US Department of Agriculture, Agricultural Research Service, National Center for Agricultural Utilization Research, Peoria, IL, USA
| | - Xinyi He
- State Key Laboratory of Microbial Metabolism, and School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Zixin Deng
- Key Laboratory of Combinatorial Biosynthesis and Drug Discovery, Ministry of Education, and School of Pharmaceutical Sciences, Wuhan University, Wuhan 430071, China; State Key Laboratory of Microbial Metabolism, and School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai 200240, China.
| | - Wenqing Chen
- Key Laboratory of Combinatorial Biosynthesis and Drug Discovery, Ministry of Education, and School of Pharmaceutical Sciences, Wuhan University, Wuhan 430071, China.
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35
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Draelos MM, Thanapipatsiri A, Sucipto H, Yokoyama K. Cryptic phosphorylation in nucleoside natural product biosynthesis. Nat Chem Biol 2020; 17:213-221. [PMID: 33257873 PMCID: PMC7855722 DOI: 10.1038/s41589-020-00656-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2020] [Accepted: 08/20/2020] [Indexed: 11/11/2022]
Abstract
Kinases are annotated in many nucleoside biosynthetic gene clusters (BGCs) but generally are considered responsible only for self-resistance. Here, we report an unexpected 2’-phosphorylation of nucleoside biosynthetic intermediates in the nikkomycin and polyoxin pathways. This phosphorylation is a unique cryptic modification as it is introduced in the third of seven steps during aminohexuronic acid (AHA) nucleoside biosynthesis, retained throughout the pathway’s duration, and is removed in the last step of the pathway. Bioinformatic analysis of reported nucleoside BGCs suggests the presence of cryptic phosphorylation in other pathways and the importance of functional characterization of kinases in nucleoside biosynthetic pathways in general. This study also functionally characterized all of the enzymes responsible for AHA biosynthesis and revealed that AHA is constructed via a unique oxidative C-C bond cleavage reaction. The results suggest a divergent biosynthetic mechanism for three classes of antifungal nucleoside natural products.
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Affiliation(s)
| | | | - Hilda Sucipto
- Department of Biochemistry, Duke University School of Medicine, Durham, NC, USA
| | - Kenichi Yokoyama
- Department of Chemistry, Duke University, Durham, NC, USA. .,Department of Biochemistry, Duke University School of Medicine, Durham, NC, USA.
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36
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Ribeiro CFA, Silveira GGDOS, Cândido EDS, Cardoso MH, Espínola Carvalho CM, Franco OL. Effects of Antibiotic Treatment on Gut Microbiota and How to Overcome Its Negative Impacts on Human Health. ACS Infect Dis 2020; 6:2544-2559. [PMID: 32786282 DOI: 10.1021/acsinfecdis.0c00036] [Citation(s) in RCA: 46] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
The need for new antimicrobial therapies is evident, especially to reduce antimicrobial resistance and minimize deleterious effects on gut microbiota. However, although diverse studies discuss the adverse effects of broad-spectrum antibiotics on the microbiome ecology, targeted interventions that could solve this problem have often been overlooked. The impact of antibiotics on gut microbiota homeostasis is alarming, compromising its microbial community and leading to changes in host health. Recent studies have shown that these impacts can be transient or permanent, causing irreversible damage to gut microbiota. The responses to and changes in the gut microbial community arising from antibiotic treatment are related to its duration, the number of doses, antibiotic class, host age, genetic susceptibility, and lifestyle. In contrast, each individual's native microbiota can also affect the response to treatment as well as respond differently to antibiotic treatment. In this context, the current challenge is to promote the growth of potentially beneficial microorganisms and to reduce the proportion of microorganisms that cause dysbiosis, thus contributing to an improvement in the patient's health. An essential requirement for the development of novel antibiotics will be personalized medicinal strategies that recognize a patient's intestinal and biochemical individuality. Thus, this Review will address a new perspective on antimicrobial therapies through pathogen-selective antibiotics that minimize the impacts on human health due to changes in the gut microbiota from the use of antibiotics.
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Affiliation(s)
- Camila Fontoura Acosta Ribeiro
- S-Inova Biotech, Programa de Pós-Graduação em Biotecnologia, Universidade Católica Dom Bosco, Campo Grande, Mato Grosso do Sul 79117-900, Brazil
| | | | - Elizabete de Souza Cândido
- S-Inova Biotech, Programa de Pós-Graduação em Biotecnologia, Universidade Católica Dom Bosco, Campo Grande, Mato Grosso do Sul 79117-900, Brazil
- Centro de Análises Proteômicas e Bioquímicas, Pós-Graduação em Ciências Genômicas e Biotecnologia, Universidade Católica de Brasília, Brasília, Federal District 71966-700, Brazil
| | - Marlon Henrique Cardoso
- S-Inova Biotech, Programa de Pós-Graduação em Biotecnologia, Universidade Católica Dom Bosco, Campo Grande, Mato Grosso do Sul 79117-900, Brazil
- Centro de Análises Proteômicas e Bioquímicas, Pós-Graduação em Ciências Genômicas e Biotecnologia, Universidade Católica de Brasília, Brasília, Federal District 71966-700, Brazil
| | - Cristiano Marcelo Espínola Carvalho
- S-Inova Biotech, Programa de Pós-Graduação em Biotecnologia, Universidade Católica Dom Bosco, Campo Grande, Mato Grosso do Sul 79117-900, Brazil
| | - Octávio Luiz Franco
- S-Inova Biotech, Programa de Pós-Graduação em Biotecnologia, Universidade Católica Dom Bosco, Campo Grande, Mato Grosso do Sul 79117-900, Brazil
- Centro de Análises Proteômicas e Bioquímicas, Pós-Graduação em Ciências Genômicas e Biotecnologia, Universidade Católica de Brasília, Brasília, Federal District 71966-700, Brazil
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37
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Wang L, Wang M, Fu Y, Huang P, Kong D, Niu G. Engineered biosynthesis of thaxtomin phytotoxins. Crit Rev Biotechnol 2020; 40:1163-1171. [PMID: 32819175 DOI: 10.1080/07388551.2020.1807461] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Herbicide-resistant weeds are a growing problem worldwide. Thaxtomin phytotoxins are a group of nitrated diketopiperazines produced by the potato common scab-causing pathogen Streptomyces scabies and other actinobacterial plant pathogens. They represent a unique class of microbial natural products with distinctive structural features and promising herbicidal activity. The biosynthesis of thaxtomins proceeds through multiple steps of unusual enzymatic reactions. Advances in understanding of thaxtomins biosynthetic machinery have provided the basis for precursor-directed biosynthesis, pathway refactoring, and one-pot biocombinatorial synthesis to generate thaxtomin analogues. We herein summarize recent findings on the biosynthesis of thaxtomins and highlight recent advances in the rational generation of novel thaxtomins for the development of potent herbicidal agents.
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Affiliation(s)
- Linqi Wang
- Biotechnology Research Center, Southwest University, Chongqing, China.,State Cultivation Base of Crop Stress Biology for Southern Mountainous Land, Academy of Agricultural Sciences, Southwest University, Chongqing, China
| | - Meiyan Wang
- Biotechnology Research Center, Southwest University, Chongqing, China.,State Cultivation Base of Crop Stress Biology for Southern Mountainous Land, Academy of Agricultural Sciences, Southwest University, Chongqing, China
| | - Yudie Fu
- Biotechnology Research Center, Southwest University, Chongqing, China.,State Cultivation Base of Crop Stress Biology for Southern Mountainous Land, Academy of Agricultural Sciences, Southwest University, Chongqing, China
| | - Pengju Huang
- Biotechnology Research Center, Southwest University, Chongqing, China.,State Cultivation Base of Crop Stress Biology for Southern Mountainous Land, Academy of Agricultural Sciences, Southwest University, Chongqing, China
| | - Dekun Kong
- Biotechnology Research Center, Southwest University, Chongqing, China.,State Cultivation Base of Crop Stress Biology for Southern Mountainous Land, Academy of Agricultural Sciences, Southwest University, Chongqing, China
| | - Guoqing Niu
- Biotechnology Research Center, Southwest University, Chongqing, China.,State Cultivation Base of Crop Stress Biology for Southern Mountainous Land, Academy of Agricultural Sciences, Southwest University, Chongqing, China.,Chongqing Key Laboratory of Plant Resource Conservation and Germplasm Innovation, Southwest University, Chongqing, China
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38
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Shi L, Liu B, Wei Q, Ge B, Zhang K. Genome-wide transcriptomic analysis of the response of Botrytis cinerea to wuyiencin. PLoS One 2020; 15:e0224643. [PMID: 32348310 PMCID: PMC7190121 DOI: 10.1371/journal.pone.0224643] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2019] [Accepted: 03/26/2020] [Indexed: 11/19/2022] Open
Abstract
Grey mould is caused by the ascomycetes Botrytis cinerea in a range of crop hosts. As a biological control agent, the nucleoside antibiotic wuyiencin has been industrially produced and widely used as an effective fungicide. To elucidate the effects of wuyiencin on the transcriptional regulation in B. cinerea, we, for the first time, report a genome-wide transcriptomic analysis of B. cinerea treated with wuyiencin. 2067 genes were differentially expressed, of them, 886 and 1181 genes were significantly upregulated and downregulated, respectively. Functional categorization indicated that transcript levels of genes involved in amino acid metabolism and those encoding putative secreted proteins were altered in response to wuyiencin treatment. Moreover, the expression of genes involved in protein synthesis and energy metabolism (oxidative phosphorylation) and of those encoding ATP-binding cassette transporters was markedly upregulated, whereas that of genes participating in DNA replication, cell cycle, and stress response was downregulated. Furthermore, wuyiencin resulted in mycelial malformation and negatively influenced cell growth rate and conidial yield in B. cinerea. Our results suggest that this nucleoside antibiotic regulates all aspects of cell growth and differentiation in B. cinerea. To summarize, some new candidate pathways and target genes that may related to the protective and antagonistic mechanisms in B. cinerea were identified underlying the action of biological control agents.
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Affiliation(s)
- Liming Shi
- State Key Laboratory of Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, PR China
| | - Binghua Liu
- State Key Laboratory of Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, PR China
| | - Qiuhe Wei
- State Key Laboratory of Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, PR China
| | - Beibei Ge
- State Key Laboratory of Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, PR China
- * E-mail: (KZ); (BG)
| | - Kecheng Zhang
- State Key Laboratory of Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, PR China
- * E-mail: (KZ); (BG)
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39
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Daley SK, Cordell GA. Homopurine Alkaloids: A Brief Overview. Nat Prod Commun 2020. [DOI: 10.1177/1934578x20917787] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
The isolation, structure elucidation, synthesis, biological properties, and biosynthesis of the homopurine alkaloids are reviewed, with an emphasis on the “victim-guardian” relationships between co-occurring alkaloids.
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Affiliation(s)
| | - Geoffrey A. Cordell
- Natural Products Inc., Evanston, IL, USA
- Department of Pharmaceutics, College of Pharmacy, University of Florida, Gainesville, FL, USA
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40
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Bracegirdle J, Gordon DP, Harvey JE, Keyzers RA. Kinase-Inhibitory Nucleoside Derivatives from the Pacific Bryozoan Nelliella nelliiformis. JOURNAL OF NATURAL PRODUCTS 2020; 83:547-551. [PMID: 31961676 DOI: 10.1021/acs.jnatprod.9b01231] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Marine organisms are a valuable source of bioactive natural products, yet bryozoan invertebrates have been relatively understudied. Herein, we report nelliellosides A and B, new secondary metabolites of the Pacific bryozoan Nelliella nelliiformis, found using NMR-guided isolation. Their structures, including absolute configurations, were elucidated using spectroscopic and chromatographic techniques. Total synthesis of the natural products and four analogues was also achieved, in addition to an assessment of their biological activity, especially kinase inhibition.
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Affiliation(s)
- Joe Bracegirdle
- School of Chemical and Physical Sciences and Centre for Biodiscovery , Victoria University of Wellington , Wellington 6012 , New Zealand
- Maurice Wilkins Centre for Molecular Biodiscovery , Auckland 1142 , New Zealand
| | - Dennis P Gordon
- National Institute of Water & Atmospheric Research (NIWA) , Wellington 6021 , New Zealand
| | - Joanne E Harvey
- School of Chemical and Physical Sciences and Centre for Biodiscovery , Victoria University of Wellington , Wellington 6012 , New Zealand
- Maurice Wilkins Centre for Molecular Biodiscovery , Auckland 1142 , New Zealand
| | - Robert A Keyzers
- School of Chemical and Physical Sciences and Centre for Biodiscovery , Victoria University of Wellington , Wellington 6012 , New Zealand
- Maurice Wilkins Centre for Molecular Biodiscovery , Auckland 1142 , New Zealand
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41
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Kong D, Wang X, Nie J, Niu G. Regulation of Antibiotic Production by Signaling Molecules in Streptomyces. Front Microbiol 2019; 10:2927. [PMID: 31921086 PMCID: PMC6930871 DOI: 10.3389/fmicb.2019.02927] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2019] [Accepted: 12/05/2019] [Indexed: 11/22/2022] Open
Abstract
The genus Streptomyces is a unique subgroup of actinomycetes bacteria that are well-known as prolific producers of antibiotics and many other bioactive secondary metabolites. Various environmental and physiological signals affect the onset and level of production of each antibiotic. Here we highlight recent findings on the regulation of antibiotic biosynthesis in Streptomyces by signaling molecules, with special focus on autoregulators such as hormone-like signaling molecules and antibiotics themselves. Hormone-like signaling molecules are a group of small diffusible signaling molecules that interact with specific receptor proteins to initiate complex regulatory cascades of antibiotic biosynthesis. Antibiotics and their biosynthetic intermediates can also serve as autoregulators to fine-tune their own biosynthesis or cross-regulators of disparate biosynthetic pathways. Advances in understanding of signaling molecules-mediated regulation of antibiotic production in Streptomyces may aid the discovery of new signaling molecules and their use in eliciting silent antibiotic biosynthetic pathways in a wide range of actinomycetes.
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Affiliation(s)
- Dekun Kong
- Biotechnology Research Center, Southwest University, Chongqing, China.,State Cultivation Base of Crop Stress Biology for Southern Mountainous Land, Academy of Agricultural Sciences, Southwest University, Chongqing, China
| | - Xia Wang
- Biotechnology Research Center, Southwest University, Chongqing, China.,State Cultivation Base of Crop Stress Biology for Southern Mountainous Land, Academy of Agricultural Sciences, Southwest University, Chongqing, China
| | - Ju Nie
- Biotechnology Research Center, Southwest University, Chongqing, China.,College of Horticulture and Landscape Architecture, Southwest University, Chongqing, China
| | - Guoqing Niu
- Biotechnology Research Center, Southwest University, Chongqing, China.,State Cultivation Base of Crop Stress Biology for Southern Mountainous Land, Academy of Agricultural Sciences, Southwest University, Chongqing, China
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42
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Price NPJ, Jackson MA, Vermillion KE, Blackburn JA, Hartman TM. Rhodium-catalyzed reductive modification of pyrimidine nucleosides, nucleotide phosphates, and sugar nucleotides. Carbohydr Res 2019; 488:107893. [PMID: 31884235 DOI: 10.1016/j.carres.2019.107893] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2019] [Revised: 11/26/2019] [Accepted: 12/13/2019] [Indexed: 01/27/2023]
Abstract
Nucleosides and nucleotides are a group of small molecule effectors and substrates which include sugar nucleotides, purine and pyrimidine-based nucleotide phosphates, and diverse nucleotide antibiotics. We previously reported that hydrogenation of the nucleotide antibiotic tunicamycin leads to products with reduced toxicity on eukaryotic cells. We now report the hydrogenation of diverse sugar nucleosides, nucleotide phosphates, and pyrimidine nucleotides. UDP-sugars and other uridyl and thymidinyl nucleosides are quantitatively reduced to the corresponding 5,6-dihydro-nucleosides. Cytidyl pyrimidines are reduced, but the major products are the corresponding 5,6-dihydrouridyl nucleosides resulting from a deamination of the cytosine ring.
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Affiliation(s)
- Neil P J Price
- Agricultural Research Service, U.S. Department of Agriculture, National Center for Agricultural Utilization Research, Peoria, IL, USA.
| | - Michael A Jackson
- Agricultural Research Service, U.S. Department of Agriculture, National Center for Agricultural Utilization Research, Peoria, IL, USA
| | - Karl E Vermillion
- Agricultural Research Service, U.S. Department of Agriculture, National Center for Agricultural Utilization Research, Peoria, IL, USA
| | - Judith A Blackburn
- Agricultural Research Service, U.S. Department of Agriculture, National Center for Agricultural Utilization Research, Peoria, IL, USA
| | - Trina M Hartman
- Agricultural Research Service, U.S. Department of Agriculture, National Center for Agricultural Utilization Research, Peoria, IL, USA
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43
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Novel nucleosides as potential inhibitors of fungal lanosterol 14α-demethylase: an in vitro and in silico study. Future Med Chem 2019; 11:2663-2686. [PMID: 31637926 DOI: 10.4155/fmc-2019-0014] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Aim: The global burden of fungal infections has transitioned from a case-specific observation to a major cause of high human mortality. Therefore, novel compounds with innovative methodologies need to be synthesized and evaluated for their antifungal potential to keep pace with the current clinical demands. Results: An efficient synthetic pathway was developed for the synthesis of 21 synthetic novel nucleosides. Two compounds had significant antifungal effect on Aspergillus fumigatus 3007, which was comparable to fluconazole. The experimental data (confocal microscopy, ultrahigh-performance liquid chromatography and flow cytometry) demonstrated the inhibition of fungal lanosterol 14α-demethylase. Conclusion: Owing to the therapeutic relevance of the synthesized nucleosides and simplicity of the procedure, the method may find its potential application for synthesis of antifungal agents.
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44
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Liposidomycin, the first reported nucleoside antibiotic inhibitor of peptidoglycan biosynthesis translocase I: The discovery of liposidomycin and related compounds with a perspective on their application to new antibiotics. J Antibiot (Tokyo) 2019; 72:877-889. [DOI: 10.1038/s41429-019-0241-5] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2019] [Revised: 09/17/2019] [Accepted: 09/17/2019] [Indexed: 12/13/2022]
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45
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Romo AJ, Shiraishi T, Ikeuchi H, Lin GM, Geng Y, Lee YH, Liem PH, Ma T, Ogasawara Y, Shin-ya K, Nishiyama M, Kuzuyama T, Liu HW. The Amipurimycin and Miharamycin Biosynthetic Gene Clusters: Unraveling the Origins of 2-Aminopurinyl Peptidyl Nucleoside Antibiotics. J Am Chem Soc 2019; 141:14152-14159. [PMID: 31150226 PMCID: PMC6774755 DOI: 10.1021/jacs.9b03021] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Peptidyl nucleoside antibiotics (PNAs) are a diverse class of natural products with promising biomedical activities. These compounds have tripartite structures composed of a core saccharide, a nucleobase, and one or more amino acids. In particular, amipurimycin and the miharamycins are novel 2-aminopurinyl PNAs with complex nine-carbon core saccharides and include the unusual amino acids (-)-cispentacin and N5-hydroxyarginine, respectively. Despite their interesting structures and properties, these PNAs have heretofore eluded biochemical scrutiny. Herein is reported the discovery and initial characterization of the miharamycin gene cluster in Streptomyces miharaensis (mhr) and the amipurimycin gene cluster (amc) in Streptomyces novoguineensis and Streptomyces sp. SN-C1. The gene clusters were identified using a comparative genomics approach, and heterologous expression of the amc cluster as well as gene interruption experiments in the mhr cluster support their role in the biosynthesis of amipurimycin and the miharamycins, respectively. The mhr and amc biosynthetic gene clusters characterized encode enzymes typical of polyketide biosynthesis instead of enzymes commonly associated with PNA biosynthesis, which, along with labeled precursor feeding studies, implies that the core saccharides found in the miharamycins and amipurimycin are partially assembled as polyketides rather than derived solely from carbohydrates. Furthermore, in vitro analysis of Mhr20 and Amc18 established their roles as ATP-grasp ligases involved in the attachment of the pendant amino acids found in these PNAs, and Mhr24 was found to be an unusual hydroxylase involved in the biosynthesis of N5-hydroxyarginine. Finally, analysis of the amc cluster and feeding studies also led to the proposal of a biosynthetic pathway for (-)-cispentacin.
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Affiliation(s)
- Anthony J. Romo
- Division of Chemical Biology and Medicinal Chemistry, College of Pharmacy, The University of Texas at Austin, Austin, TX 78712, USA
| | - Taro Shiraishi
- Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan
| | - Hideo Ikeuchi
- Biotechnology Research Center, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan
| | - Geng-Min Lin
- Department of Chemistry, The University of Texas at Austin, Austin, TX 78712, USA
| | - Yujie Geng
- Division of Chemical Biology and Medicinal Chemistry, College of Pharmacy, The University of Texas at Austin, Austin, TX 78712, USA
| | - Yu-Hsuan Lee
- Department of Chemistry, The University of Texas at Austin, Austin, TX 78712, USA
| | - Priscilla H. Liem
- Department of Biochemistry, The University of Texas at Austin, Austin, TX 78712, USA
| | - Tianlu Ma
- Department of Biochemistry, The University of Texas at Austin, Austin, TX 78712, USA
| | - Yasushi Ogasawara
- Division of Chemical Biology and Medicinal Chemistry, College of Pharmacy, The University of Texas at Austin, Austin, TX 78712, USA
| | - Kazuo Shin-ya
- Biotechnology Research Center, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan
- National Institute of Advanced Industrial Science and Technology, 2-4-7 Aomi, Koto-ku, Tokyo 135-0064, Japan
| | - Makoto Nishiyama
- Biotechnology Research Center, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan
- Collaborative Research Institute for Innovative Microbiology, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan
| | - Tomohisa Kuzuyama
- Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan
- Collaborative Research Institute for Innovative Microbiology, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan
| | - Hung-wen Liu
- Division of Chemical Biology and Medicinal Chemistry, College of Pharmacy, The University of Texas at Austin, Austin, TX 78712, USA
- Department of Chemistry, The University of Texas at Austin, Austin, TX 78712, USA
- Department of Biochemistry, The University of Texas at Austin, Austin, TX 78712, USA
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46
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Niu G, Li Z, Huang P, Tan H. Engineering nucleoside antibiotics toward the development of novel antimicrobial agents. J Antibiot (Tokyo) 2019; 72:906-912. [DOI: 10.1038/s41429-019-0230-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2019] [Revised: 07/25/2019] [Accepted: 08/14/2019] [Indexed: 11/09/2022]
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47
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Patel B, Ryan P, Makwana V, Zunk M, Rudrawar S, Grant G. Caprazamycins: Promising lead structures acting on a novel antibacterial target MraY. Eur J Med Chem 2019; 171:462-474. [DOI: 10.1016/j.ejmech.2019.01.071] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2018] [Revised: 01/24/2019] [Accepted: 01/28/2019] [Indexed: 11/29/2022]
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48
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Thomson JM, Lamont IL. Nucleoside Analogues as Antibacterial Agents. Front Microbiol 2019; 10:952. [PMID: 31191461 PMCID: PMC6540614 DOI: 10.3389/fmicb.2019.00952] [Citation(s) in RCA: 81] [Impact Index Per Article: 16.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2019] [Accepted: 04/15/2019] [Indexed: 12/27/2022] Open
Abstract
The rapid increase in antibiotic-resistant bacteria has emphasized the urgent need to identify new treatments for bacterial infections. One attractive approach, reducing the need for expensive and time-consuming clinical trials, is to repurpose existing clinically approved compounds for use as antibacterial agents. Nucleoside analogues are commonly used for treating viral and fungal infections, as well as for treating cancers, but have received relatively little attention as treatments for bacterial infections. However, a significant number of clinically approved derivatives of both pyrimidines and purines including halogenated, thiolated, and azolated compounds have been shown to have antibacterial activity. In the small number of studies carried out to date, such compounds have shown promise in treating bacterial infections. Here, we review the mechanisms of action and antibacterial activities of nucleoside analogues that can potentially be repurposed for treating infections as well as considering possible limitations in their usage.
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Affiliation(s)
- Jessica M Thomson
- Department of Biochemistry, University of Otago, Dunedin, New Zealand
| | - Iain L Lamont
- Department of Biochemistry, University of Otago, Dunedin, New Zealand
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49
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Jiang Q, Lou Z, Wang H, Chen C. Antimicrobial effect and proposed action mechanism of cordycepin against Escherichia coli and Bacillus subtilis. J Microbiol 2019; 57:288-297. [PMID: 30929229 DOI: 10.1007/s12275-019-8113-z] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2018] [Revised: 08/07/2018] [Accepted: 08/13/2018] [Indexed: 12/01/2022]
Abstract
The detailed antibacterial mechanism of cordycepin efficacy against food-borne germs remains ambiguous. In this study, the antibacterial activity and action mechanism of cordycepin were assessed. The results showed that cordycepin effectively inhibited the growth of seven bacterial pathogens including both Gram-positive and Gram-negative bacterial pathogens; the minimum inhibitory concentrations (MIC) were 2.5 and 1.25 mg/ml against Escherichia coli and Bacillus subtilis, respectively. Scanning electron microscope and transmission electron microscope examination confirmed that cordycepin caused obvious damages in the cytoplasmatic membranes of both E. coli and B. subtilis. Outer membrane permeability assessment indicated the loss of barrier function and the leakage of cytoplasmic contents. Propidium iodide and carboxyfluorescein diacetate double staining approach coupled with flow cytometry analysis indicated that the integrity of cell membrane was severely damaged during a short time, while the intracellular enzyme system still remained active. This clearly suggested that membrane damage was one of the reasons for cordycepin efficacy against bacteria. Additionally, results from circular dichroism and fluorescence analysis indicated cordycepin could insert to genome DNA base and double strand, which disordered the structure of genomic DNA. Basis on these results, the mode of bactericidal action of cordycepin against E. coli and B. subtilis was found to be a dual mechanism, disrupting bacterial cell membranes and binding to bacterial genomic DNA to interfere in cellular functions, ultimately leading to cell death.
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Affiliation(s)
- Qi Jiang
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, 214122, P. R. China.,National Engineering Research Center for Functional Food, Jiangnan University, Wuxi, 214122, P. R. China
| | - Zaixiang Lou
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, 214122, P. R. China. .,National Engineering Research Center for Functional Food, Jiangnan University, Wuxi, 214122, P. R. China.
| | - Hongxin Wang
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, 214122, P. R. China. .,National Engineering Research Center for Functional Food, Jiangnan University, Wuxi, 214122, P. R. China.
| | - Chen Chen
- National Engineering Research Center for Functional Food, Jiangnan University, Wuxi, 214122, P. R. China
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50
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Wu Y, Wu R, Mandalapu D, Ji X, Chen T, Ding W, Zhang Q. Radical SAM-dependent adenosylation catalyzed by l-tyrosine lyases. Org Biomol Chem 2019; 17:1809-1812. [DOI: 10.1039/c8ob02906g] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Tyrosine analogues containing an olefin moiety can be adenosylated by l-tyrosine lyases.
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Affiliation(s)
- Yujie Wu
- State Key Laboratory of Cryospheric Sciences
- Key Laboratory of Extreme Environmental Microbial Resources and Engineering
- Northwest Institute of Eco-environment and Resource
- Chinese Academy of Sciences
- Lanzhou 730000
| | - Runze Wu
- Department of Chemistry
- Fudan University
- Shanghai 200433
- China
| | | | - Xinjian Ji
- Department of Chemistry
- Fudan University
- Shanghai 200433
- China
| | - Tuo Chen
- State Key Laboratory of Cryospheric Sciences
- Key Laboratory of Extreme Environmental Microbial Resources and Engineering
- Northwest Institute of Eco-environment and Resource
- Chinese Academy of Sciences
- Lanzhou 730000
| | - Wei Ding
- Department of Chemistry
- Fudan University
- Shanghai 200433
- China
| | - Qi Zhang
- Department of Chemistry
- Fudan University
- Shanghai 200433
- China
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