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Peng J, Zhang Y, Yang J, Zhou L, Zhang S, Wu X, Chen J, Hu D, Gan X. Novel trans-Resveratrol Derivatives: Design, Synthesis, Antibacterial Activity, and Mechanisms. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024; 72:15561-15571. [PMID: 38957133 DOI: 10.1021/acs.jafc.4c02041] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/04/2024]
Abstract
Rice bacterial leaf blight and rice bacterial leaf streak have induced tremendous damage to production of rice worldwide. To discover an effective novel antibacterial agent, a series of novel trans-resveratrol (RSV) derivatives containing 1,3,4-oxadiazole and amide moieties were designed and synthesized for the first time. Most of them showed excellent antibacterial activities against Xanthomonas oryzae pv oryzicola and Xanthomonas oryzae pv oryzae. Especially, compound J12 had the best inhibitory with the half-maximal effective concentration values of 4.2 and 5.0 mg/L, respectively, which were better than that of RSV (63.7 and 75.4 mg/L), bismerthiazol (79.5 and 89.6 mg/L), and thiodiazole copper (105.4 and 112.8 mg/L). Furthermore, compound J12 had an excellent control effect against rice bacterial leaf streak and rice bacterial leaf blight, with protective activities of 46.2 and 42.1% and curative activities of 44.5 and 41.7%, respectively. Preliminary mechanisms indicated that compound J12 could not only remarkably decrease biofilm formation, extracellular polysaccharide production, and the synthesis of extracellular enzymes but also destroy bacterial cell surface morphology, thereby reducing the pathogenicity of bacteria. In addition, compound J12 could increase the activity of defense-related enzymes and affect the expression of multiple pathogenic-related genes including plant-pathogen interaction, the MAPK signaling pathway, and phenylpropanoid biosynthesis, and this could improve the defense of rice against rice bacterial leaf streak infection. The present work indicates that the RSV derivatives can be used as promising candidates for the development of antibacterial agents.
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Affiliation(s)
- Ju Peng
- State Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China
- Guizhou Rice Research Institute, Guizhou Provincial Academy of Agricultural Sciences, Guiyang 550006, China
| | - Yong Zhang
- State Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China
| | - Jingguo Yang
- Technology Center, China Tobacco GuiZhou Industrial Co., Ltd., Guiyang 550009, China
| | - Leliang Zhou
- Guizhou Rice Research Institute, Guizhou Provincial Academy of Agricultural Sciences, Guiyang 550006, China
| | - Shangdu Zhang
- Guizhou Rice Research Institute, Guizhou Provincial Academy of Agricultural Sciences, Guiyang 550006, China
| | - Xiang Wu
- Guizhou Rice Research Institute, Guizhou Provincial Academy of Agricultural Sciences, Guiyang 550006, China
| | - Jixiang Chen
- State Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China
| | - Deyu Hu
- State Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China
| | - Xiuhai Gan
- State Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China
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2
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Guo X, Yu H, Xiong J, Dai Q, Li Y, Zhang W, Liao X, He X, Zhou H, Zhang K. Pseudomonas aeruginosa two-component system LadS/PA0034 regulates macrophage phagocytosis via fimbrial protein cupA1. mBio 2024; 15:e0061624. [PMID: 38771052 PMCID: PMC11237798 DOI: 10.1128/mbio.00616-24] [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: 03/06/2024] [Accepted: 04/02/2024] [Indexed: 05/22/2024] Open
Abstract
Pseudomonas aeruginosa is one of the most common nosocomial pathogens worldwide, known for its virulence, drug resistance, and elaborate sensor-response network. The primary challenge encountered by pathogens during the initial stages of infection is the immune clearance arising from the host. The resident macrophages of barrier organs serve as the frontline defense against these pathogens. Central to our understanding is the mechanism by which bacteria modify their behavior to circumvent macrophage-mediated clearance, ensuring their persistence and colonization. To successfully evade macrophage-mediated phagocytosis, bacteria must possess an adaptive response mechanism. Two-component systems provide bacteria the agility to navigate diverse environmental challenges, translating external stimuli into cellular adaptive responses. Here, we report that the well-documented histidine kinase, LadS, coupled to a cognate two-component response regulator, PA0034, governs the expression of a vital adhesin called chaperone-usher pathway pilus cupA. The LadS/PA0034 system is susceptible to interference from the reactive oxygen species likely to be produced by macrophages and further lead to a poor adhesive phenotype with scantily cupA pilus, impairing the phagocytosis efficiency of macrophages during acute infection. This dynamic underscores the intriguing interplay: as macrophages deploy reactive oxygen species to combat bacterial invasion, the bacteria recalibrate their exterior to elude these defenses. IMPORTANCE The notoriety of Pseudomonas aeruginosa is underscored by its virulence, drug resistance, and elaborate sensor-response network. Yet, the mechanisms by which P. aeruginosa maneuvers to escape phagocytosis during acute infections remain elusive. This study pinpoints a two-component response regulator, PA0034, coupled with the histidine kinase LadS, and responds to macrophage-derived reactive oxygen species. The macrophage-derived reactive oxygen species can impair the LadS/PA0034 system, resulting in reduced expression of cupA pilus in the exterior of P. aeruginosa. Since the cupA pilus is an important adhesin of P. aeruginosa, its deficiency reduces bacterial adhesion and changes their behavior to adopt a planktonic lifestyle, subsequently inhibiting the phagocytosis of macrophages by interfering with bacterial adhesion. Briefly, reactive oxygen species may act as environmental cues for the LadS/PA0034 system. Upon recognition, P. aeruginosa may transition to a poorly adhesive state, efficiently avoiding engulfment by macrophages.
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Affiliation(s)
- Xiaolong Guo
- Clinical Medical Research Center, The Xinqiao Hospital, Army Medical University, Chongqing, China
| | - Hua Yu
- Clinical Medical Research Center, The Xinqiao Hospital, Army Medical University, Chongqing, China
| | - Junzhi Xiong
- Clinical Medical Research Center, The Xinqiao Hospital, Army Medical University, Chongqing, China
| | - Qian Dai
- Clinical Medical Research Center, The Xinqiao Hospital, Army Medical University, Chongqing, China
| | - Yuanyuan Li
- Clinical Medical Research Center, The Xinqiao Hospital, Army Medical University, Chongqing, China
| | - Wei Zhang
- Clinical Medical Research Center, The Xinqiao Hospital, Army Medical University, Chongqing, China
- Department of orthopedics, The First Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Xiping Liao
- Clinical Medical Research Center, The Xinqiao Hospital, Army Medical University, Chongqing, China
| | - Xiaomei He
- Clinical Medical Research Center, The Xinqiao Hospital, Army Medical University, Chongqing, China
| | - Hongli Zhou
- Clinical Medical Research Center, The Xinqiao Hospital, Army Medical University, Chongqing, China
| | - Kebin Zhang
- Clinical Medical Research Center, The Xinqiao Hospital, Army Medical University, Chongqing, China
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3
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Shapiro J, Post SJ, Smith GC, Wuest WM. Total Synthesis of the Reported Structure of Cahuitamycin A: Insights into an Elusive Natural Product Scaffold. Org Lett 2023; 25:9243-9248. [PMID: 38155597 PMCID: PMC10758118 DOI: 10.1021/acs.orglett.3c03993] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2023] [Revised: 12/13/2023] [Accepted: 12/13/2023] [Indexed: 12/30/2023]
Abstract
In a 2016 screen of natural product extracts, a new family of natural products, the cahuitamycins, was discovered and found to inhibit biofilm formation in the human pathogen Acinetobacter baumannii. The proposed molecular structures contained an unusual piperazic acid residue, which piqued interest related to their structure/function and biosynthesis. Herein we disclose the first total synthesis of the proposed structure of cahuitamycin A in a 12-step longest linear sequence and 18% overall yield. Comparison of spectral and biological data of the authentic natural product and synthetic compound revealed inconsistentancies with the isolated metabolite. We therefore executed the diverted total synthesis of three isomeric compounds, which were also found to be disparate from the isolated natural product. This work sets the stage for future synthetic and biochemical investigations of an important class of natural products.
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Affiliation(s)
- Justin
A. Shapiro
- Department
of Chemistry, Emory University, Atlanta, Georgia 30322, United States
| | - Savannah J. Post
- Department
of Chemistry, Emory University, Atlanta, Georgia 30322, United States
| | - Gavin C. Smith
- Department
of Chemistry, Emory University, Atlanta, Georgia 30322, United States
| | - William M. Wuest
- Department
of Chemistry, Emory University, Atlanta, Georgia 30322, United States
- Emory
Antibiotic Resistance Center, Emory University, Atlanta, Georgia 30322, United States
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4
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Tan X, Cheng X, Xiao J, Liu Q, Du D, Li M, Sun Y, Zhou J, Zhu G. Alkaline phosphatase LapA regulates quorum sensing-mediated virulence and biofilm formation in Pseudomonas aeruginosa PAO1 under phosphate depletion stress. Microbiol Spectr 2023; 11:e0206023. [PMID: 37796007 PMCID: PMC10715133 DOI: 10.1128/spectrum.02060-23] [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: 05/16/2023] [Accepted: 08/19/2023] [Indexed: 10/06/2023] Open
Abstract
IMPORTANCE Our previous study demonstrated that the expression of lapA was induced under phosphate depletion conditions, but its roles in virulence and biofilm formation by Pseudomonas aeruginosa remain largely unknown. This study presents a systematic investigation of the roles of lapA in virulence induction and biofilm formation by constructing a lapA-deficient strain with P. aeruginosa PAO1. The results showed that deletion of the lapA gene evidently reduced elastase activity, swimming motility, C4-HSL, and 3-oxo-C12-HSL production, and increased rhamnolipid production under phosphate depletion stress. Moreover, lapA gene deletion inhibited PAO1 biofilm formation in porcine skin explants by reducing the expression levels of las and rhl quorum sensing systems and extracellular polymeric substance synthesis. Finally, lapA gene deletion also reduced the virulence of PAO1 in Caenorhabditis elegans in fast-kill and slow-kill infection assays. This study provides insights into the roles of lapA in modulating P. aeruginosa virulence and biofilm formation under phosphate depletion stress.
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Affiliation(s)
- Xiaojuan Tan
- Anhui Provincial Key Laboratory of Molecular Enzymology and Mechanism of Major Diseases, College of Life Sciences, Anhui Normal University, Wuhu, Anhui, China
| | - Xi Cheng
- Anhui Provincial Key Laboratory of Molecular Enzymology and Mechanism of Major Diseases, College of Life Sciences, Anhui Normal University, Wuhu, Anhui, China
| | - Jingjing Xiao
- Anhui Provincial Key Laboratory of Molecular Enzymology and Mechanism of Major Diseases, College of Life Sciences, Anhui Normal University, Wuhu, Anhui, China
| | - Qianqian Liu
- Anhui Provincial Key Laboratory of Molecular Enzymology and Mechanism of Major Diseases, College of Life Sciences, Anhui Normal University, Wuhu, Anhui, China
| | - Dongsheng Du
- Anhui Provincial Key Laboratory of Molecular Enzymology and Mechanism of Major Diseases, College of Life Sciences, Anhui Normal University, Wuhu, Anhui, China
| | - Minghui Li
- Anhui Provincial Key Laboratory of Molecular Enzymology and Mechanism of Major Diseases, College of Life Sciences, Anhui Normal University, Wuhu, Anhui, China
| | - Yang Sun
- Anhui Provincial Key Laboratory of Molecular Enzymology and Mechanism of Major Diseases, College of Life Sciences, Anhui Normal University, Wuhu, Anhui, China
| | - Jinwei Zhou
- School of Food and Biology Engineering, Xuzhou University of Technology, Xuzhou, Jiangsu, China
| | - Guoping Zhu
- Anhui Provincial Key Laboratory of Molecular Enzymology and Mechanism of Major Diseases, College of Life Sciences, Anhui Normal University, Wuhu, Anhui, China
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5
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Zhuang Y, Yang F, Menon A, Song JM, Espinoza RV, Schultz PJ, Garner AL, Tripathi A. An ECD and NMR/DP4+ Computational Pipeline for Structure Revision and Elucidation of Diphenazine-Based Natural Products. JOURNAL OF NATURAL PRODUCTS 2023; 86:1801-1814. [PMID: 37463274 DOI: 10.1021/acs.jnatprod.3c00306] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/20/2023]
Abstract
Discovery and structure elucidation of natural products available in infinitesimally small quantities are recognized challenge. This challenge is epitomized by the diphenazine class of molecules that contain three bridged stereocenters, several conformations, ring fusions, and multiple spatially isolated phenols. Because empirical NMR and spatial analyses using ROESY/NOESY were unsuccessful in tackling these challenges, we developed a computational pipeline to determine the relative and absolute configurations and phenol positions of diphenazines as inhibitors of eukaryotic translation initiation factor 4E (eIF4E) protein-protein interactions. In this pipeline, we incorporated ECD and GIAO NMR calculations coupled with a DP4+ probability measure, enabling the structure revision of phenazinolin D (4), izumiphenazine A (5), and baraphenazine G (7) and the structure characterization of two new diphenazines, baraphenazine H (3) and izumiphenazine E (6). Importantly, through these efforts, we demonstrate the feasibility of NMR/DP4+ analysis for the determination of phenol positions in phenazine-based molecules, further expanding the limits of computational methods for the structure elucidation of complex natural products.
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Affiliation(s)
- Yihao Zhuang
- Department of Medicinal Chemistry, College of Pharmacy, University of Michigan, 1600 Huron Parkway, NCRC B520, Ann Arbor, Michigan 48109, United States
- Natural Product Discovery Core, Mary Sue Coleman Hall, University of Michigan, 210 Washtenaw Avenue, Ann Arbor, Michigan 48109, United States
| | - Fei Yang
- Natural Product Discovery Core, Mary Sue Coleman Hall, University of Michigan, 210 Washtenaw Avenue, Ann Arbor, Michigan 48109, United States
| | - Arya Menon
- Department of Medicinal Chemistry, College of Pharmacy, University of Michigan, 1600 Huron Parkway, NCRC B520, Ann Arbor, Michigan 48109, United States
| | - James M Song
- Program of Chemical Biology, Mary Sue Coleman Hall, University of Michigan, 210 Washtenaw Avenue, Ann Arbor, Michigan 48109, United States
| | - Rosa V Espinoza
- Natural Product Discovery Core, Mary Sue Coleman Hall, University of Michigan, 210 Washtenaw Avenue, Ann Arbor, Michigan 48109, United States
- Program of Chemical Biology, Mary Sue Coleman Hall, University of Michigan, 210 Washtenaw Avenue, Ann Arbor, Michigan 48109, United States
| | - Pamela J Schultz
- Natural Product Discovery Core, Mary Sue Coleman Hall, University of Michigan, 210 Washtenaw Avenue, Ann Arbor, Michigan 48109, United States
| | - Amanda L Garner
- Department of Medicinal Chemistry, College of Pharmacy, University of Michigan, 1600 Huron Parkway, NCRC B520, Ann Arbor, Michigan 48109, United States
| | - Ashootosh Tripathi
- Department of Medicinal Chemistry, College of Pharmacy, University of Michigan, 1600 Huron Parkway, NCRC B520, Ann Arbor, Michigan 48109, United States
- Natural Product Discovery Core, Mary Sue Coleman Hall, University of Michigan, 210 Washtenaw Avenue, Ann Arbor, Michigan 48109, United States
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6
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Peng J, Zhang Y, Liu X, Zou Y, Song H, Wang S, Cai Q, Chen J, Hu D. Design, synthesis, antibacterial activity, and mechanism of novel resveratrol derivatives containing an 1,3,4-oxadiazole moiety. PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY 2023; 193:105457. [PMID: 37248023 DOI: 10.1016/j.pestbp.2023.105457] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Revised: 05/01/2023] [Accepted: 05/04/2023] [Indexed: 05/31/2023]
Abstract
Rice bacterial diseases seriously threaten the development of rice industry in the world, and chemical control is still one of the effective means to control it. To find novel antibacterial agents, 42 resveratrol derivatives were designed and synthesized based on natural product resveratrol as lead structure, and their antibacterial activities were evaluated. Most compounds have excellent antibacterial activities. Among them, the EC50 values of compound B1 against Xanthomonas oryzae pv. oryzae (Xoo) and Xanthomonas oryzae pv. oryzicola (Xoc) were 4.76 and 8.85 mg/L, respectively. The curative activities of compound B1 against bacterial leaf blight and bacterial leaf streak were 45.57 and 38.40%, and the protective activities were 49.41 and 35.93%, respectively. In addition, compound B1 could change bacterial cell surface morphology by inhibiting biofilm formation and exopolysaccharide production, and increasing membrane permeability, thereby affecting the normal growth of bacteria. Furthermore, transcriptome analysis showed that differential expressed genes were mainly enriched in plant-pathogen interaction pathway and MAPK signaling pathway-plant after compound B1 treated susceptible rice. We will further optimize the structure of compound B1 in future work to find more efficient antibacterial agents.
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Affiliation(s)
- Ju Peng
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China; Guizhou Rice Research Institute, Guizhou Provincial Academy of Agricultural Sciences, Guiyang 550006, China
| | - Yong Zhang
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China
| | - Xing Liu
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China
| | - Yue Zou
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China
| | - Hongyi Song
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China
| | - Sheng Wang
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China
| | - Qingfeng Cai
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China
| | - Jixiang Chen
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China.
| | - Deyu Hu
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China.
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7
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El-Sayed MH, Alshammari FA, Sharaf MH. Antagonistic Potentiality of Actinomycete-Derived Extract with Anti-Biofilm, Antioxidant, and Cytotoxic Capabilities as a Natural Combating Strategy for Multidrug-Resistant ESKAPE Pathogens. J Microbiol Biotechnol 2023; 33:61-74. [PMID: 36597590 PMCID: PMC9896001 DOI: 10.4014/jmb.2211.11026] [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: 11/14/2022] [Revised: 12/06/2022] [Accepted: 12/16/2022] [Indexed: 01/05/2023]
Abstract
The global increase in multidrug-resistant (MDR) bacteria has inspired researchers to develop new strategies to overcome this problem. In this study, 23 morphologically different, soil-isolated actinomycete cultures were screened for their antibacterial ability against MDR isolates of ESKAPE pathogens. Among them, isolate BOGE18 exhibited a broad antibacterial spectrum, so it was selected and identified based on cultural, morphological, physiological, and biochemical characteristics. Chemotaxonomic analysis was also performed together with nucleotide sequencing of the 16S rRNA gene, which showed this strain to have identity with Streptomyces lienomycini. The ethyl acetate extract of the cell-free filtrate (CFF) of strain BOGE18 was evaluated for its antibacterial spectrum, and the minimum inhibitory concentration (MIC) ranged from 62.5 to 250 μg/ml. The recorded results from the in vitro anti-biofilm microtiter assay and confocal laser scanning microscopy (CLSM) of sub-MIC concentrations revealed a significant reduction in biofilm formation in a concentration-dependent manner. The extract also displayed significant scavenging activity, reaching 91.61 ± 4.1% and 85.06 ± 3.14% of 2,2-diphenyl-1-picrylhydrazyl (DPPH) and 2,2'-azino-bis( 3-ethylbenzothiazoline-6-sulfonic acid) (ABTS), respectively. A promising cytotoxic ability against breast (MCF-7) and hepatocellular (HePG2) cancer cell lines was obtained from the extract with IC50 values of 47.15 ± 13.10 and 122.69 ± 9.12 μg/ml, respectively. Moreover, based on gas chromatography-mass spectrometry (GC-MS) analysis, nine known compounds were detected in the BOGE18 extract, suggesting their contribution to the multitude of biological activities recorded in this study. Overall, Streptomyces lienomycini BOGE18-derived extract is a good candidate for use in a natural combating strategy to prevent bacterial infection, especially by MDR pathogens.
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Affiliation(s)
- Mohamed H. El-Sayed
- Department of Biology, College of Science and Arts, Northern Border University, Saudi Arabia,Department of Botany and Microbiology, Faculty of Science, Al-Azhar University, Cairo 11884, Egypt,Corresponding author Phone: +20 111 91 070 44 E-mail:
| | - Fahdah A. Alshammari
- Department of Biology, College of Science and Arts, Northern Border University, Saudi Arabia
| | - Mohammed H. Sharaf
- Department of Botany and Microbiology, Faculty of Science, Al-Azhar University, Cairo 11884, Egypt
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8
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Gold nanoclusters-loaded hydrogel formed by dimeric hydrogen bonds crosslinking: A novel strategy for multidrug-resistant bacteria-infected wound healing. Mater Today Bio 2022; 16:100426. [PMID: 36133795 PMCID: PMC9483737 DOI: 10.1016/j.mtbio.2022.100426] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2022] [Revised: 08/18/2022] [Accepted: 09/09/2022] [Indexed: 11/22/2022]
Abstract
Restoring skin integrity after wound infection remains a tougher health challenge due to the uncontrolled antibiotic-resistant pathogens caused by antibiotic abuse. Herein, an injectable hydrogel with dual antibacterial and anti-inflammatory activities composed of gold nanoclusters (GNCs) and carbomer (CBM) is developed for wound dressing to overcome multidrug-resistant infection. Firstly, both experimental investigations and molecular dynamics simulation validate the protonation state of 6-mercaptohexanoic acid (MHA) ligands play an important role in its antibacterial action of GNCs. The self-organizing GNCs-CBM composite hydrogel is then spontaneously cross-linked by the dimeric hydrogen bonds (H-bonds) between the MHA ligands and the acrylic acid groups of CBM. Benefitting from the dimeric H-bonds, the hydrogel becomes thickening enough as an ideal wound dressing and the GNCs exist in the hydrogel with a high protonation level that contributes to the enhanced bactericidal function. In all, by combining bactericidal and immunomodulatory actions, the GNCs-CBM hydrogel demonstrated excellent synergy in accelerating wound healing in animal infection models. Hence, the dimeric H-bonds strengthening strategy makes the GNCs-CBM hydrogel hold great potential as a safe and effective dressing for treating infected wounds.
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9
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Wei ZW, Niikura H, Morgan KD, Vacariu CM, Andersen RJ, Ryan KS. Free Piperazic Acid as a Precursor to Nonribosomal Peptides. J Am Chem Soc 2022; 144:13556-13564. [PMID: 35867963 DOI: 10.1021/jacs.2c03660] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Piperazic acid (Piz) is a nonproteinogenic amino acid possessing a rare nitrogen-nitrogen bond. However, little is known about how Piz is incorporated into nonribosomal peptides, including whether adenylation domains specific to Piz exist. In this study, we show that free piperazic acid is directly adenylated and then incorporated into the incarnatapeptin nonribosomal peptides through isotopic incorporation studies. We also use in vitro reconstitution to demonstrate adenylation of free piperazic acid with a three-domain nonribosomal peptide synthetase from the incarnatapeptin gene cluster. We furthermore use bioinformatics and site-directed mutagenesis to outline consensus sequences for the adenylation of piperazic acid, which can now be used for the prediction of gene clusters linked to piperazic-acid-containing peptides. Finally, we discover a fusion protein of a piperazate synthase and an adenylation domain, highlighting the close biosynthetic relationship of piperazic acid formation and its adenylation. Altogether, our work demonstrates the evolution of biosynthetic systems for the activation of free piperazic acid through adenylation, a pathway we suggest is likely to be employed in the majority of pathways to piperazic-acid-containing peptides.
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10
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Zhang F, Ramos Alvarenga RF, Throckmorton K, Chanana S, Braun DR, Fossen J, Zhao M, McCrone S, Harper MK, Rajski SR, Rose WE, Andes DR, Thomas MG, Bugni TS. Genome Mining and Metabolomics Unveil Pseudonochelin: A Siderophore Containing 5-Aminosalicylate from a Marine-Derived Pseudonocardia sp. Bacterium. Org Lett 2022; 24:3998-4002. [PMID: 35649263 DOI: 10.1021/acs.orglett.2c01408] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Pseudonochelin (1), a siderophore from a marine-derived Pseudonocardia sp. bacterium, was discovered using genome mining and metabolomics technologies. A 5-aminosalicylic acid (5-ASA) unit, not previously found in siderophore natural products, was identified in 1. Annotation of a putative psn biosynthetic gene cluster combined with bioinformatics and isotopic enrichment studies enabled us to propose the biosynthesis of 1. Moreover, 1 was found to display in vitro and in vivo antibacterial activity in an iron-dependent fashion.
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Affiliation(s)
- Fan Zhang
- Pharmaceutical Sciences Division, University of Wisconsin-Madison, Madison, Wisconsin 53705, United States
| | - René F Ramos Alvarenga
- Pharmaceutical Sciences Division, University of Wisconsin-Madison, Madison, Wisconsin 53705, United States
| | - Kurt Throckmorton
- Department of Bacteriology, University of Wisconsin-Madison, Madison, Wisconsin 53706, United States
| | - Shaurya Chanana
- Pharmaceutical Sciences Division, University of Wisconsin-Madison, Madison, Wisconsin 53705, United States
| | - Doug R Braun
- Pharmaceutical Sciences Division, University of Wisconsin-Madison, Madison, Wisconsin 53705, United States
| | - Jen Fossen
- Department of Medicine, University of Wisconsin-Madison, Madison, Wisconsin 53705, United States
| | - Miao Zhao
- Department of Medicine, University of Wisconsin-Madison, Madison, Wisconsin 53705, United States
| | - Sue McCrone
- Pharmacy Practice Division, University of Wisconsin-Madison, Madison, Wisconsin 53705, United States
| | - Mary Kay Harper
- Department of Medicinal Chemistry, University of Utah, Salt Lake City, Utah 84112, United States
| | - Scott R Rajski
- Pharmaceutical Sciences Division, University of Wisconsin-Madison, Madison, Wisconsin 53705, United States
| | - Warren E Rose
- Pharmacy Practice Division, University of Wisconsin-Madison, Madison, Wisconsin 53705, United States
| | - David R Andes
- Department of Medicine, University of Wisconsin-Madison, Madison, Wisconsin 53705, United States
| | - Michael G Thomas
- Department of Bacteriology, University of Wisconsin-Madison, Madison, Wisconsin 53706, United States
| | - Tim S Bugni
- Pharmaceutical Sciences Division, University of Wisconsin-Madison, Madison, Wisconsin 53705, United States
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11
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Deng Y, Liu Y, Li J, Wang X, He S, Yan X, Shi Y, Zhang W, Ding L. Marine natural products and their synthetic analogs as promising antibiofilm agents for antibiotics discovery and development. Eur J Med Chem 2022; 239:114513. [DOI: 10.1016/j.ejmech.2022.114513] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2022] [Revised: 05/31/2022] [Accepted: 06/01/2022] [Indexed: 12/25/2022]
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12
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Role of Antimicrobial Drug in the Development of Potential Therapeutics. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2022; 2022:2500613. [PMID: 35571735 PMCID: PMC9098294 DOI: 10.1155/2022/2500613] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/05/2022] [Revised: 04/13/2022] [Accepted: 04/18/2022] [Indexed: 12/17/2022]
Abstract
Population of the world run into several health-related emergencies among mankind and humans as it creates a challenge for the evolution of novel drug discoveries. One such can be the emergence of multidrug-resistant (MDR) strains in both hospital and community settings, which have been due to an inappropriate use and inadequate control of antibiotics that has led to the foremost human health concerns with a high impact on the global economy. So far, there has been application of two strategies for the development of anti-infective agents either by classical antibiotics that have been derived for their synthetic analogs with increased efficacy or screening natural compounds along with the synthetic compound libraries for the antimicrobial activities. However, need for newer treatment options for infectious diseases has led research to develop new generation of antimicrobial activity to further lessen the spread of antibiotic resistance. Currently, the principles aim to find novel mode of actions or products to target the specific sites and virulence factors in pathogens by a series of better understanding of physiology and molecular aspects of the microbial resistance, mechanism of infection process, and gene-pathogenicity relationship. The design various novel strategies tends to provide us a path for the development of various antimicrobial therapies that intends to have a broader and wider antimicrobial spectrum that helps to combat MDR strains worldwide. The development of antimicrobial peptides, metabolites derived from plants, microbes, phage-based antimicrobial agents, use of metal nanoparticles, and role of CRISPR have led to an exceptional strategies in designing and developing the next-generation antimicrobials. These novel strategies might help to combat the seriousness of the infection rates and control the health crisis system.
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13
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Qi PY, Zhang TH, Feng YM, Wang MW, Shao WB, Zeng D, Jin LH, Wang PY, Zhou X, Yang S. Exploring an Innovative Strategy for Suppressing Bacterial Plant Disease: Excavated Novel Isopropanolamine-Tailored Pterostilbene Derivatives as Potential Antibiofilm Agents. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2022; 70:4899-4911. [PMID: 35437986 DOI: 10.1021/acs.jafc.2c00590] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Bacterial biofilms are the root cause of persistent and chronic phytopathogenic bacterial infections. Therefore, developing novel agrochemicals that target the biofilm of phytopathogenic bacteria has been regarded as an innovative tactic to suppress their invasive infection or decrease bacterial drug resistance. In this study, a series of natural pterostilbene (PTE) derivatives were designed, and their antibacterial potency and antibiofilm ability were assessed. Notably, compound C1 displayed excellent antibacterial potency in vitro, affording an EC50 value of 0.88 μg mL-1 against Xoo (Xanthomonas oryzae pv. oryzae). C1 could significantly reduce biofilm formation and extracellular polysaccharides (EPS). Furthermore, C1 also possessed remarkable inhibitory activity against bacterial extracellular enzymes, pathogenicity, and other virulence factors. Subsequently, pathogenicity experiments were further conducted to verify the above primary outcomes. More importantly, C1 with pesticide additives displayed excellent control efficiency. Given these promising profiles, these pterostilbene derivatives can serve as novel antibiofilm agents to suppress plant pathogenic bacteria.
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Affiliation(s)
- Pu-Ying Qi
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China
| | - Tai-Hong Zhang
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China
| | - Yu-Mei Feng
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China
| | - Ming-Wei Wang
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China
| | - Wu-Bin Shao
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China
| | - Dan Zeng
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China
| | - Lin-Hong Jin
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China
| | - Pei-Yi Wang
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China
| | - Xiang Zhou
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China
| | - Song Yang
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China
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14
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Recent Strategies to Combat Biofilms Using Antimicrobial Agents and Therapeutic Approaches. Pathogens 2022; 11:pathogens11030292. [PMID: 35335616 PMCID: PMC8955104 DOI: 10.3390/pathogens11030292] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Revised: 02/11/2022] [Accepted: 02/14/2022] [Indexed: 02/01/2023] Open
Abstract
Biofilms are intricate bacterial assemblages that attach to diverse surfaces using an extracellular polymeric substance that protects them from the host immune system and conventional antibiotics. Biofilms cause chronic infections that result in millions of deaths around the world every year. Since the antibiotic tolerance mechanism in biofilm is different than that of the planktonic cells due to its multicellular structure, the currently available antibiotics are inadequate to treat biofilm-associated infections which have led to an immense need to find newer treatment options. Over the years, various novel antibiofilm compounds able to fight biofilms have been discovered. In this review, we have focused on the recent and intensively researched therapeutic techniques and antibiofilm agents used for biofilm treatment and grouped them according to their type and mode of action. We also discuss some therapeutic approaches that have the potential for future advancement.
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15
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Morgan KD, Williams DE, Ryan KS, Andersen RJ. Dentigerumycin F and G: dynamic structures retrieved through a genome-mining/nitrogen-NMR methodology. Tetrahedron Lett 2022. [DOI: 10.1016/j.tetlet.2022.153688] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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16
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Ma GL, Candra H, Pang LM, Xiong J, Ding Y, Tran HT, Low ZJ, Ye H, Liu M, Zheng J, Fang M, Cao B, Liang ZX. Biosynthesis of Tasikamides via Pathway Coupling and Diazonium-Mediated Hydrazone Formation. J Am Chem Soc 2022; 144:1622-1633. [DOI: 10.1021/jacs.1c10369] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Guang-Lei Ma
- School of Biological Sciences, Nanyang Technological University, 637551 Singapore
| | - Hartono Candra
- School of Biological Sciences, Nanyang Technological University, 637551 Singapore
| | - Li Mei Pang
- School of Biological Sciences, Nanyang Technological University, 637551 Singapore
| | - Juan Xiong
- School of Pharmacy, Fudan University, Shanghai 201203, P. R. China
| | - Yichen Ding
- Temasek Life Sciences Laboratory Limited, Research Link, National University of Singapore, 117604 Singapore
| | - Hoa Thi Tran
- School of Biological Sciences, Nanyang Technological University, 637551 Singapore
| | - Zhen Jie Low
- School of Biological Sciences, Nanyang Technological University, 637551 Singapore
| | - Hong Ye
- School of Biological Sciences, Nanyang Technological University, 637551 Singapore
| | - Min Liu
- School of Civil and Environmental Engineering, Nanyang Technological University, 639798 Singapore
| | - Jie Zheng
- School of Civil and Environmental Engineering, Nanyang Technological University, 639798 Singapore
| | - Mingliang Fang
- School of Civil and Environmental Engineering, Nanyang Technological University, 639798 Singapore
| | - Bin Cao
- School of Civil and Environmental Engineering, Nanyang Technological University, 639798 Singapore
- Singapore Centre for Environmental Life Sciences Engineering, Nanyang Technological University, 637551 Singapore
| | - Zhao-Xun Liang
- School of Biological Sciences, Nanyang Technological University, 637551 Singapore
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17
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Trebino MA, Shingare RD, MacMillan JB, Yildiz FH. Strategies and Approaches for Discovery of Small Molecule Disruptors of Biofilm Physiology. Molecules 2021; 26:molecules26154582. [PMID: 34361735 PMCID: PMC8348372 DOI: 10.3390/molecules26154582] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2021] [Revised: 07/24/2021] [Accepted: 07/26/2021] [Indexed: 12/02/2022] Open
Abstract
Biofilms, the predominant growth mode of microorganisms, pose a significant risk to human health. The protective biofilm matrix, typically composed of exopolysaccharides, proteins, nucleic acids, and lipids, combined with biofilm-grown bacteria’s heterogenous physiology, leads to enhanced fitness and tolerance to traditional methods for treatment. There is a need to identify biofilm inhibitors using diverse approaches and targeting different stages of biofilm formation. This review discusses discovery strategies that successfully identified a wide range of inhibitors and the processes used to characterize their inhibition mechanism and further improvement. Additionally, we examine the structure–activity relationship (SAR) for some of these inhibitors to optimize inhibitor activity.
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Affiliation(s)
- Michael A. Trebino
- Department of Microbiology and Environmental Toxicology, University of California, Santa Cruz, CA 95064, USA;
| | - Rahul D. Shingare
- Department of Chemistry and Biochemistry, University of California, Santa Cruz, CA 95064, USA;
| | - John B. MacMillan
- Department of Chemistry and Biochemistry, University of California, Santa Cruz, CA 95064, USA;
- Correspondence: (J.B.M.); (F.H.Y.)
| | - Fitnat H. Yildiz
- Department of Microbiology and Environmental Toxicology, University of California, Santa Cruz, CA 95064, USA;
- Correspondence: (J.B.M.); (F.H.Y.)
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18
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Robertson A, Sandoval J, Mohamed OG, Zhuang Y, Gallagher EE, Schmidt J, Caratelli L, Menon A, Schultz PJ, Torrez RM, Hay CL, Bell BA, Price PA, Garner AL, Tripathi A. Discovery of Surfactins as Inhibitors of MicroRNA Processing Using Cat-ELCCA. ACS Med Chem Lett 2021; 12:878-886. [PMID: 34141065 PMCID: PMC8201508 DOI: 10.1021/acsmedchemlett.1c00046] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2021] [Accepted: 03/22/2021] [Indexed: 12/20/2022] Open
Abstract
MicroRNAs (miRNAs) are a family of small noncoding RNAs that regulate gene expression. Due to their important activity in the fine-tuning of protein translation, abnormal expression of miRNAs has been linked to many human diseases, making the targeting of miRNAs attractive as a novel therapeutic strategy. Accordingly, researchers have been heavily engaged in the discovery of small molecule modulators of miRNAs. With an interest in the identification of new chemical space for targeting miRNAs, we developed a high-throughput screening (HTS) technology, catalytic enzyme-linked click chemistry assay (cat-ELCCA), aimed at the discovery of small molecule ligands for pre-miR-21, a miRNA that is frequently overexpressed in human cancers. From our HTS campaign, we found that natural products, a source of many impactful human medicines, may be a promising source of potential pre-miR-21-selective maturation inhibitors. Herein we describe our first efforts in natural product inhibitor discovery leading to the identification of a depsipeptide class of natural products as RNA-binding inhibitors of Dicer-mediated miRNA processing.
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Affiliation(s)
- Andrew
W. Robertson
- Life
Sciences Institute, University of Michigan, 210 Washtenaw Avenue, Ann Arbor, Michigan 48109, United States
- Natural
Products Discovery Core, University of Michigan, 210 Washtenaw Avenue, Ann Arbor, Michigan 48109, United States
| | - Jorge Sandoval
- Program
in Chemical Biology, University of Michigan, 210 Washtenaw Avenue, Ann Arbor, Michigan 48109, United States
| | - Osama G. Mohamed
- Natural
Products Discovery Core, University of Michigan, 210 Washtenaw Avenue, Ann Arbor, Michigan 48109, United States
- Pharmacognosy
Department, Faculty of Pharmacy, Cairo University, Kasr el-Aini Street, Cairo 11562, Egypt
| | - Yihao Zhuang
- Natural
Products Discovery Core, University of Michigan, 210 Washtenaw Avenue, Ann Arbor, Michigan 48109, United States
- Department
of Medicinal Chemistry, College of Pharmacy, University of Michigan, 428 Church Street, Ann Arbor, Michigan 48109, United
States
| | - Erin E. Gallagher
- Department
of Medicinal Chemistry, College of Pharmacy, University of Michigan, 428 Church Street, Ann Arbor, Michigan 48109, United
States
| | - Jennifer Schmidt
- Life
Sciences Institute, University of Michigan, 210 Washtenaw Avenue, Ann Arbor, Michigan 48109, United States
| | - Lisa Caratelli
- Department
of Medicinal Chemistry, College of Pharmacy, University of Michigan, 428 Church Street, Ann Arbor, Michigan 48109, United
States
| | - Arya Menon
- Department
of Medicinal Chemistry, College of Pharmacy, University of Michigan, 428 Church Street, Ann Arbor, Michigan 48109, United
States
| | - Pamela J. Schultz
- Life
Sciences Institute, University of Michigan, 210 Washtenaw Avenue, Ann Arbor, Michigan 48109, United States
- Natural
Products Discovery Core, University of Michigan, 210 Washtenaw Avenue, Ann Arbor, Michigan 48109, United States
| | - Rachel M. Torrez
- Life
Sciences Institute, University of Michigan, 210 Washtenaw Avenue, Ann Arbor, Michigan 48109, United States
- Department
of Medicinal Chemistry, College of Pharmacy, University of Michigan, 428 Church Street, Ann Arbor, Michigan 48109, United
States
| | - Catherine L. Hay
- Natural
Products Discovery Core, University of Michigan, 210 Washtenaw Avenue, Ann Arbor, Michigan 48109, United States
| | - Bailey A. Bell
- Natural
Products Discovery Core, University of Michigan, 210 Washtenaw Avenue, Ann Arbor, Michigan 48109, United States
| | - Paul A. Price
- Biology
Department, Eastern Michigan University, Ypsilanti, Michigan United States
| | - Amanda L. Garner
- Program
in Chemical Biology, University of Michigan, 210 Washtenaw Avenue, Ann Arbor, Michigan 48109, United States
- Department
of Medicinal Chemistry, College of Pharmacy, University of Michigan, 428 Church Street, Ann Arbor, Michigan 48109, United
States
| | - Ashootosh Tripathi
- Life
Sciences Institute, University of Michigan, 210 Washtenaw Avenue, Ann Arbor, Michigan 48109, United States
- Natural
Products Discovery Core, University of Michigan, 210 Washtenaw Avenue, Ann Arbor, Michigan 48109, United States
- Department
of Medicinal Chemistry, College of Pharmacy, University of Michigan, 428 Church Street, Ann Arbor, Michigan 48109, United
States
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19
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Kusuma AB, Nouioui I, Goodfellow M. Genome-based classification of the Streptomyces violaceusniger clade and description of Streptomyces sabulosicollis sp. nov. from an Indonesian sand dune. Antonie Van Leeuwenhoek 2021; 114:859-873. [PMID: 33797685 PMCID: PMC8137480 DOI: 10.1007/s10482-021-01564-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2021] [Accepted: 03/18/2021] [Indexed: 11/23/2022]
Abstract
A polyphasic study was designed to determine the taxonomic provenance of a strain, isolate PRKS01-29T, recovered from an Indonesian sand dune and provisionally assigned to the Streptomyces violaceusniger clade. Genomic, genotypic and phenotypic data confirmed this classification. The isolate formed an extensively branched substrate mycelium which carried aerial hyphae that differentiated into spiral chains of rugose ornamented spores, contained LL-as the wall diaminopimelic acid, MK-9 (H6, H8) as predominant isoprenologues, phosphatidylethanolamine as the diagnostic phospholipid and major proportions of saturated, iso- and anteiso- fatty acids. Whole-genome sequences generated for the isolate and Streptomyces albiflaviniger DSM 41598T and Streptomyces javensis DSM 41764T were compared with phylogenetically closely related strains, the isolate formed a branch within the S. violaceusniger clade in the resultant phylogenomic tree. Whole-genome sequences data showed that isolate PRKS01-29T was most closely related to the S. albiflaviniger strain but was distinguished from the latter and from other members of the clade using combinations of phenotypic properties and average nucleotide identity and digital DNA:DNA hybridization scores. Consequently, it is proposed that isolate PRKS01-29T (= CCMM B1303T = ICEBB-02T = NCIMB 15210T) should be classified in the genus Streptomyces as Streptomyces sabulosicollis sp. nov. It is also clear that streptomycetes which produce spiral chains of rugose ornamented spores form a well-defined monophyletic clade in the Streptomyces phylogenomic tree., the taxonomic status of which requires further study. The genome of the type strain of S. sabulosicollis contains biosynthetic gene clusters predicted to produce new natural products.
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Affiliation(s)
- Ali B Kusuma
- School of Natural and Environmental Sciences, Newcastle University, Ridley Building 2, Newcastle upon Tyne, NE1 7RU, UK.
- Indonesian Centre for Extremophile Bioresources and Biotechnology (ICEBB), Faculty of Biotechnology, Sumbawa University of Technology, Sumbawa Besar, 84371, Indonesia.
| | - Imen Nouioui
- School of Natural and Environmental Sciences, Newcastle University, Ridley Building 2, Newcastle upon Tyne, NE1 7RU, UK
- Leibniz-Institut DSMZ - German Collection of Microorganisms and Cell Cultures, Inhoffenstraße 7B, 38124, Braunschweig, Germany
| | - Michael Goodfellow
- School of Natural and Environmental Sciences, Newcastle University, Ridley Building 2, Newcastle upon Tyne, NE1 7RU, UK
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20
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Current Understanding on Adhesion and Biofilm Development in Actinobacteria. Int J Microbiol 2021; 2021:6637438. [PMID: 34122552 PMCID: PMC8166509 DOI: 10.1155/2021/6637438] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2020] [Accepted: 05/07/2021] [Indexed: 12/30/2022] Open
Abstract
Biofilm formation and microbial adhesion are two related and complex phenomena. These phenomena are known to play an important role in microbial life and various functions with positive and negative aspects. Actinobacteria have wide distribution in aquatic and terrestrial ecosystems. This phylum is very large and diverse and contains two important genera Streptomyces and Mycobacteria. The genus Streptomyces is the most biotechnologically important, while the genus Mycobacteria contains the pathogenic species of Mycobacteriaceae. According to the literature, the majority of studies carried out on actinomycetes are focused on the detection of new molecules. Despite the well-known diversity and metabolic activities, less attention has been paid to this phylum. Research on adhesion and biofilm formation is not well developed. In the present review, an attempt has been made to review the literature available on the different aspects on biofilm formation and adhesion of Actinobacteria. We focus especially on the genus Streptomyces. Furthermore, a brief overview about the molecules and structures involved in the adhesion phenomenon in the most relevant genus is summarized. We mention the mechanisms of quorum sensing and quorum quenching because of their direct association with biofilm formation.
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21
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Bamunuarachchi NI, Khan F, Kim YM. Inhibition of Virulence Factors and Biofilm Formation of Acinetobacter Baumannii by Naturally-derived and Synthetic Drugs. Curr Drug Targets 2021; 22:734-759. [PMID: 33100201 DOI: 10.2174/1389450121666201023122355] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2020] [Revised: 09/17/2020] [Accepted: 09/22/2020] [Indexed: 11/22/2022]
Abstract
Acinetobacter baumannii is a gram-negative, aerobic, non-motile, and pleomorphic bacillus. A. baumannii is also a highly-infectious pathogen causing high mortality and morbidity rates in intensive care units. The discovery of novel agents against A. baumannii infections is urgently needed due to the emergence of drug-resistant A. baumannii strains and the limited number of efficacious antibiotics available for treatment. In addition to the production of several virulence factors, A. baumannii forms biofilms on the host cell surface as well. Formation of biofilms occurs through initial surface attachment, microcolony formation, biofilm maturation, and detachment stages, and is one of the major drug resistance mechanisms employed by A. baumannii. Several studies have previously reported the efficacy of naturally-derived and synthetic compounds as anti- biofilm and anti-virulence agents against A. baumannii. Here, inhibition of biofilm formation and virulence factors of A. baumannii using naturally-derived and synthetic compounds are reviewed.
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Affiliation(s)
| | - Fazlurrahman Khan
- Institute of Food Science, Pukyong National University, Busan 48513, South Korea
| | - Young-Mog Kim
- Department of Food Science and Technology, Pukyong National University, Busan 48513, South Korea
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22
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Mohr JF, Baldeweg F, Deicke M, Morales-Reyes CF, Hoffmeister D, Wichard T. Frankobactin Metallophores Produced by Nitrogen-Fixing Frankia Actinobacteria Function in Toxic Metal Sequestration. JOURNAL OF NATURAL PRODUCTS 2021; 84:1216-1225. [PMID: 33789052 DOI: 10.1021/acs.jnatprod.0c01291] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
A series of new metallophores, referred to as frankobactins, were extracted from cultures of the symbiotic and nitrogen-fixing actinobacterium Frankia sp. CH37. Structure elucidation revealed a 2-hydroxyphenyl-substituted oxazoline core and a chain composed of five proteinogenic and nonproteinogenic amino acids, suggesting nonribosomal peptide synthesis as the biosynthetic origin. By whole-genome sequencing, bioinformatic analysis, and comparison with other Frankia strains, the genetic locus responsible for the biosynthesis was detected. Spectrophotometric titration of frankobactin with Fe(III) and Cu(II) and mass spectrometry established the 1:1 (metal:frankobactin) coordination. Uptake experiments suggested that frankobactin A1 (1) did not serve to recruit iron, but to detoxify Cu(II). As frankobactin A1 prevents the cellular entry of Cu(II), it could play a crucial role in the symbiosis of Frankia sp. and its host in the reclamation of copper-contaminated soil.
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Affiliation(s)
- Jan Frieder Mohr
- Institute for Inorganic and Analytical Chemistry, Friedrich-Schiller-University Jena, Lessingstraße 8, 07743 Jena, Germany
| | - Florian Baldeweg
- Department of Pharmaceutical Microbiology at the Hans-Knöll-Institute, Friedrich-Schiller-University Jena, Winzerlaer Straße 2, 07745 Jena, Germany
| | - Michael Deicke
- Institute for Inorganic and Analytical Chemistry, Friedrich-Schiller-University Jena, Lessingstraße 8, 07743 Jena, Germany
| | - Cristina F Morales-Reyes
- Institute for Inorganic and Analytical Chemistry, Friedrich-Schiller-University Jena, Lessingstraße 8, 07743 Jena, Germany
| | - Dirk Hoffmeister
- Department of Pharmaceutical Microbiology at the Hans-Knöll-Institute, Friedrich-Schiller-University Jena, Winzerlaer Straße 2, 07745 Jena, Germany
| | - Thomas Wichard
- Institute for Inorganic and Analytical Chemistry, Friedrich-Schiller-University Jena, Lessingstraße 8, 07743 Jena, Germany
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23
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Atanasov AG, Zotchev SB, Dirsch VM, Supuran CT. Natural products in drug discovery: advances and opportunities. Nat Rev Drug Discov 2021; 20:200-216. [PMID: 33510482 PMCID: PMC7841765 DOI: 10.1038/s41573-020-00114-z] [Citation(s) in RCA: 1789] [Impact Index Per Article: 596.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/12/2020] [Indexed: 02/07/2023]
Abstract
Natural products and their structural analogues have historically made a major contribution to pharmacotherapy, especially for cancer and infectious diseases. Nevertheless, natural products also present challenges for drug discovery, such as technical barriers to screening, isolation, characterization and optimization, which contributed to a decline in their pursuit by the pharmaceutical industry from the 1990s onwards. In recent years, several technological and scientific developments - including improved analytical tools, genome mining and engineering strategies, and microbial culturing advances - are addressing such challenges and opening up new opportunities. Consequently, interest in natural products as drug leads is being revitalized, particularly for tackling antimicrobial resistance. Here, we summarize recent technological developments that are enabling natural product-based drug discovery, highlight selected applications and discuss key opportunities.
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Affiliation(s)
- Atanas G Atanasov
- Institute of Genetics and Animal Biotechnology of the Polish Academy of Sciences, Jastrzebiec, Poland.
- Department of Pharmacognosy, University of Vienna, Vienna, Austria.
- Institute of Neurobiology, Bulgarian Academy of Sciences, Sofia, Bulgaria.
- Ludwig Boltzmann Institute for Digital Health and Patient Safety, Medical University of Vienna, Vienna, Austria.
| | - Sergey B Zotchev
- Department of Pharmacognosy, University of Vienna, Vienna, Austria
| | - Verena M Dirsch
- Department of Pharmacognosy, University of Vienna, Vienna, Austria
| | - Claudiu T Supuran
- Università degli Studi di Firenze, NEUROFARBA Dept, Sezione di Scienze Farmaceutiche, Florence, Italy.
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24
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Fukuda TH, Helfrich EJN, Mevers E, Melo WGP, Van Arnam EB, Andes DR, Currie CR, Pupo MT, Clardy J. Specialized Metabolites Reveal Evolutionary History and Geographic Dispersion of a Multilateral Symbiosis. ACS CENTRAL SCIENCE 2021; 7:292-299. [PMID: 33655067 PMCID: PMC7908033 DOI: 10.1021/acscentsci.0c00978] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/23/2020] [Indexed: 05/29/2023]
Abstract
Fungus-growing ants engage in a multilateral symbiosis: they cultivate a fungal garden as their primary food source and host symbiotic actinobacteria (Pseudonocardia spp.) that provide chemical defenses. The bacterial symbionts produce small specialized metabolites that protect the fungal garden from specific fungal pathogens (Escovopsis spp.), and in return, they are fed by the ant hosts. Multiple studies on the molecules underlying this symbiotic system have led to the discovery of a large number of structurally diverse antifungal molecules, but somewhat surprisingly no shared structural theme emerged from these studies. A large systematic study of Brazilian nests led to the discovery of the widespread production of a potent but overlooked antifungal agent, which we named attinimicin, by nearly two-thirds of all Pseudonocardia strains from multiple sites in Brazil. Here we report the structure of attinimicin, its putative biosynthetic gene cluster, and the evolutionary relationship between attinimicin and two related peptides, oxachelin A and cahuitamycin A. All three nonribosomal peptides are structural isomers with different primary peptide sequences. Attinimicin shows iron-dependent antifungal activity against specific environmental fungal parasites but no activity against the fungal cultivar. Attinimicin showed potent in vivo activity in a mouse Candida albicans infection model comparable to clinically used azole-containing antifungals. In situ detection of attinimicin in both ant nests and on worker ants supports an ecological role for attinimicin in protecting the fungal cultivar from pathogens. The geographic spread of the attinimicin biosynthetic gene cluster in Brazilian Pseudonocardia spp. marks attinimicin as the first specialized metabolite from ant-associated bacteria with broad geographic distribution.
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Affiliation(s)
- Taise
T. H. Fukuda
- Department
of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, Boston, Massachusetts 02115, United States
- School
of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Ribeirão Preto, São Paulo 14040-903, Brazil
| | - Eric J. N. Helfrich
- Department
of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, Boston, Massachusetts 02115, United States
- Institute
for Molecular Bio Science, Goethe University
Frankfurt, 60438 Frankfurt am Main, Germany
- LOEWE
Center for Translational Biodiversity Genomics (TBG), 60325 Frankfurt
am Main, Germany
| | - Emily Mevers
- Department
of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, Boston, Massachusetts 02115, United States
- Department
of Chemistry, Virginia Tech, Blacksburg, Virginia 24061, United States
| | - Weilan G. P. Melo
- School
of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Ribeirão Preto, São Paulo 14040-903, Brazil
| | - Ethan B. Van Arnam
- Department
of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, Boston, Massachusetts 02115, United States
- Keck
Science
Department, Claremont McKenna, Pitzer, and
Scripps Colleges, Claremont, California 91711, United States
| | - David R. Andes
- Department
of Medicine, University of Wisconsin School
of Medicine and Public Health, Madison, Wisconsin 53705, United States
| | - Cameron R. Currie
- Department
of Bacteriology, University of Wisconsin-Madison, Madison, Wisconsin 53706, United States
| | - Monica T. Pupo
- School
of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Ribeirão Preto, São Paulo 14040-903, Brazil
| | - Jon Clardy
- Department
of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, Boston, Massachusetts 02115, United States
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25
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Discovery of a Novel Lineage Burkholderia cepacia ST 1870 Endophytically Isolated from Medicinal Polygala paniculata Which Shows Potent In Vitro Antileishmanial and Antimicrobial Effects. Int J Microbiol 2021; 2021:6618559. [PMID: 33679984 PMCID: PMC7904367 DOI: 10.1155/2021/6618559] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2020] [Accepted: 01/29/2021] [Indexed: 02/02/2023] Open
Abstract
In this study, we report the isolation and identification of an endophytic strain of Burkholderia cepacia (COPS strain) associated with Polygala paniculata roots. Polygala plants are rich sources of promising microbiomes, of which the literature reports several pharmacological effects, such as trypanocidal, antinociceptive, anesthetic, anxiolytics, and anticonvulsant activities. B. cepacia COPS belongs to a new sequence type (ST 1870) and harbors a genome estimated in 8.3 Mbp which exhibits the aminoglycosides and beta-lactams resistance genes aph(3′)-IIa and blaTEM-116, respectively. Analysis performed using MLST, average nucleotide identity, and digital DNA-DNA hybridization support its species-level identification and reveals its novel housekeeping genes alleles gyrB, lepA, and phaC. The root endophyte B. cepacia COPS drew our attention from a group of 14 bacterial isolates during the primary screening for being potentially active against Staphylococcus aureus ATCC 29213, Enterococcus faecalis ATCC 29212, Micrococcus luteus ATCC 9341, Escherichia coli ATCC 25922, and Candida albicans ATCC 10231 and exhibited the broad-spectrum activity against phytopathogenic fungi. In addition, COPS strain showed production of protease, lipase, and esterase in solid media, and its natural product extract showed potent inhibition against fungal plant pathogens, such as Moniliophthora perniciosa, whose antagonism index (89.32%) exceeded the positive control (74.17%), whereas Sclerotinia sclerotiorum and Ceratocystis paradoxa showed high percentages of inhibition (85.53% and 82.69%, respectively). COPS crude extract also significantly inhibited S. epidermidis ATCC 35984, E. faecium ATCC 700221 (MIC values of 32 μg/mL for both), E. faecalis ATCC 29212 (64 μg/mL), and S. aureus ATCC 25923 (128 μg/mL). We observed moderate antagonistic activity against A. baumannii ATCC 19606 and E. coli ATCC 25922 (both at 512 μg/mL), as well as potent cytotoxic effects on Leishmania infantum and Leishmania major promastigote forms with 78.25% and 57.30% inhibition. In conclusion, this study presents for the first time the isolation of an endophytic B. cepacia strain associated with P. paniculata and enough evidence that these plants may be considered a rich source of microbes for the fight against neglected diseases.
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26
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Matarrita-Carranza B, Murillo-Cruz C, Avendaño R, Ríos MI, Chavarría M, Gómez-Calvo ML, Tamayo-Castillo G, Araya JJ, Pinto-Tomás AA. Streptomyces sp. M54: an actinobacteria associated with a neotropical social wasp with high potential for antibiotic production. Antonie van Leeuwenhoek 2021; 114:379-398. [PMID: 33587228 DOI: 10.1007/s10482-021-01520-y] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/13/2020] [Accepted: 01/17/2021] [Indexed: 11/28/2022]
Abstract
Streptomyces symbionts in insects have shown to be a valuable source of new antibiotics. Here, we report the genome sequence and the potential for antibiotic production of "Streptomyces sp. M54", an Actinobacteria associated with the eusocial wasp, Polybia plebeja. The Streptomyces sp. M54 genome is composed of a chromosome (7.96 Mb), and a plasmid (1.91 Kb) and harbors 30 biosynthetic gene clusters for secondary metabolites, of which only one third has been previously characterized. Growth inhibition bioassays show that this bacterium produces antimicrobial compounds that are active against Hirsutella citriformis, a natural fungal enemy of its host, and the human pathogens Staphylococcus aureus and Candida albicans. Analyses through TLC-bioautography, LC-MS/MS and NMR allowed the identification of five macrocyclic ionophore antibiotics, with previously reported antibacterial, antitumor and antiviral properties. Phylogenetic analyses placed Streptomyces sp. M54 in a clade of other host-associated strains taxonomically related to Streptomyces griseus. Pangenomic and ANI analyses confirm the identity of one of its closest relatives as Streptomyces sp. LaPpAH-199, a strain isolated from an ant-plant symbiosis in Africa. In summary, our results suggest an insect-microbe association in distant geographic areas and showcase the potential of Streptomyces sp. M54 and related strains for the discovery of novel antibiotics.
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Affiliation(s)
| | - Catalina Murillo-Cruz
- Centro de Investigación en Estructuras Microscópicas (CIEMic), Universidad de Costa Rica, 11501-2060, San José, Costa Rica.,Departamento de Bioquímica, Escuela de Medicina, Universidad de Costa Rica, 11501-2060, San José, Costa Rica
| | - Roberto Avendaño
- Centro Nacional de Innovaciones Biotecnológicas (CENIBiot), CeNAT-CONARE, 1174-1200, San José, Costa Rica
| | - María Isabel Ríos
- Centro de Investigaciones en Productos Naturales (CIPRONA), Universidad de Costa Rica, 11501-2060, San José, Costa Rica
| | - Max Chavarría
- Centro Nacional de Innovaciones Biotecnológicas (CENIBiot), CeNAT-CONARE, 1174-1200, San José, Costa Rica.,Centro de Investigaciones en Productos Naturales (CIPRONA), Universidad de Costa Rica, 11501-2060, San José, Costa Rica.,Escuela de Química, Universidad de Costa Rica, 11501-2060, San José, Costa Rica
| | - María Luisa Gómez-Calvo
- Centro de Investigaciones en Productos Naturales (CIPRONA), Universidad de Costa Rica, 11501-2060, San José, Costa Rica
| | - Giselle Tamayo-Castillo
- Centro de Investigaciones en Productos Naturales (CIPRONA), Universidad de Costa Rica, 11501-2060, San José, Costa Rica.,Escuela de Química, Universidad de Costa Rica, 11501-2060, San José, Costa Rica
| | - Juan J Araya
- Centro de Investigaciones en Productos Naturales (CIPRONA), Universidad de Costa Rica, 11501-2060, San José, Costa Rica.,Escuela de Química, Universidad de Costa Rica, 11501-2060, San José, Costa Rica
| | - Adrián A Pinto-Tomás
- Centro de Investigación en Estructuras Microscópicas (CIEMic), Universidad de Costa Rica, 11501-2060, San José, Costa Rica. .,Departamento de Bioquímica, Escuela de Medicina, Universidad de Costa Rica, 11501-2060, San José, Costa Rica. .,Centro de Investigación en Biología Celular y Molecular (CIBCM), Universidad de Costa Rica, 11501-2060, San José, Costa Rica.
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27
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Mayer AMS, Guerrero AJ, Rodríguez AD, Taglialatela-Scafati O, Nakamura F, Fusetani N. Marine Pharmacology in 2016-2017: Marine Compounds with Antibacterial, Antidiabetic, Antifungal, Anti-Inflammatory, Antiprotozoal, Antituberculosis and Antiviral Activities; Affecting the Immune and Nervous Systems, and Other Miscellaneous Mechanisms of Action. Mar Drugs 2021; 19:49. [PMID: 33494402 PMCID: PMC7910995 DOI: 10.3390/md19020049] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2020] [Revised: 01/13/2021] [Accepted: 01/15/2021] [Indexed: 12/12/2022] Open
Abstract
The review of the 2016-2017 marine pharmacology literature was prepared in a manner similar as the 10 prior reviews of this series. Preclinical marine pharmacology research during 2016-2017 assessed 313 marine compounds with novel pharmacology reported by a growing number of investigators from 54 countries. The peer-reviewed literature reported antibacterial, antifungal, antiprotozoal, antituberculosis, and antiviral activities for 123 marine natural products, 111 marine compounds with antidiabetic and anti-inflammatory activities as well as affecting the immune and nervous system, while in contrast 79 marine compounds displayed miscellaneous mechanisms of action which upon further investigation may contribute to several pharmacological classes. Therefore, in 2016-2017, the preclinical marine natural product pharmacology pipeline generated both novel pharmacology as well as potentially new lead compounds for the growing clinical marine pharmaceutical pipeline, and thus sustained with its contributions the global research for novel and effective therapeutic strategies for multiple disease categories.
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Affiliation(s)
- Alejandro M. S. Mayer
- Department of Pharmacology, College of Graduate Studies, Midwestern University, 555 31st Street, Downers Grove, IL 60515, USA;
| | - Aimee J. Guerrero
- Department of Pharmacology, College of Graduate Studies, Midwestern University, 555 31st Street, Downers Grove, IL 60515, USA;
| | - Abimael D. Rodríguez
- Molecular Sciences Research Center, University of Puerto Rico, 1390 Ponce de León Avenue, San Juan, PR 00926, USA;
| | | | - Fumiaki Nakamura
- Department of Chemistry and Biochemistry, Graduate School of Advanced Science and Engineering, Waseda University, 3-4-1 Okubo, Shinjuku-ku, Tokyo 169-8555, Japan;
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28
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Zhang J, Liang X, Zhang S, Song Z, Wang C, Xu Y. Maipomycin A, a Novel Natural Compound With Promising Anti-biofilm Activity Against Gram-Negative Pathogenic Bacteria. Front Microbiol 2021; 11:598024. [PMID: 33510721 PMCID: PMC7835661 DOI: 10.3389/fmicb.2020.598024] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2020] [Accepted: 12/15/2020] [Indexed: 01/01/2023] Open
Abstract
Pathogenic bacterial biofilms play an important role in recurrent nosocomial and medical device-related infections. Once occurred, the complex structure of the biofilm promotes the development of antibiotic resistance and becomes extremely difficult to eradicate. Here we describe a novel and effective anti-biofilm compound maipomycin A (MaiA), which was isolated from the metabolites of a rare actinomycete strain Kibdelosporangium phytohabitans XY-R10. Its structure was deduced from analyses of spectral data and confirmed by single-crystal X-ray crystallography. This natural product demonstrated a broad spectrum of anti-biofilm activities against Gram-negative bacteria. Interestingly, the addition of Fe(II) or Fe(III) ions could block the biofilm inhibition activity of MaiA because it is an iron chelator. However, not all iron chelators showed biofilm inhibition activity, suggesting that MaiA prevents biofilm formation through a specific yet currently undefined pathway. Furthermore, MaiA acts as a synergist to enhance colistin efficacy against Acinetobacter baumannii. Our results indicate that MaiA may potentially serve as an effective antibiofilm agent to prevent Gram-negative biofilm formation in future clinical applications.
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Affiliation(s)
- Junliang Zhang
- Shenzhen Key Laboratory of Marine Bioresource and Eco-Environmental Science, Shenzhen Engineering Laboratory for Marine Algal Biotechnology, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen, China.,Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen, China
| | - Xiaoyan Liang
- Key Laboratory of Marine Drugs, Ministry of Education of China, School of Medicine and Pharmacy, Ocean University of China, Qingdao, China.,Laboratory for Marine Drugs and Bioproducts, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China
| | - Shiling Zhang
- Shenzhen Key Laboratory of Marine Bioresource and Eco-Environmental Science, Shenzhen Engineering Laboratory for Marine Algal Biotechnology, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen, China
| | - Zhiman Song
- Shenzhen Key Laboratory of Marine Bioresource and Eco-Environmental Science, Shenzhen Engineering Laboratory for Marine Algal Biotechnology, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen, China
| | - Changyun Wang
- Key Laboratory of Marine Drugs, Ministry of Education of China, School of Medicine and Pharmacy, Ocean University of China, Qingdao, China.,Laboratory for Marine Drugs and Bioproducts, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China.,Institute of Evolution and Marine Biodiversity, Ocean University of China, Qingdao, China
| | - Ying Xu
- Shenzhen Key Laboratory of Marine Bioresource and Eco-Environmental Science, Shenzhen Engineering Laboratory for Marine Algal Biotechnology, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen, China
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29
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Khan F, Oloketuyi SF, Kim YM. Diversity of Bacteria and Bacterial Products as Antibiofilm and Antiquorum Sensing Drugs Against Pathogenic Bacteria. Curr Drug Targets 2020; 20:1156-1179. [PMID: 31020938 DOI: 10.2174/1389450120666190423161249] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2019] [Revised: 02/25/2019] [Accepted: 04/12/2019] [Indexed: 12/14/2022]
Abstract
The increase in antibiotic resistance of pathogenic bacteria has led to the development of new therapeutic approaches to inhibit biofilm formation as well as interfere quorum sensing (QS) signaling systems. The QS system is a phenomenon in which pathogenic bacteria produce signaling molecules that are involved in cell to cell communication, production of virulence factors, biofilm maturation, and several other functions. In the natural environment, several non-pathogenic bacteria are present as mixed population along with pathogenic bacteria and they control the behavior of microbial community by producing secondary metabolites. Similarly, non-pathogenic bacteria also take advantages of the QS signaling molecule as a sole carbon source for their growth through catabolism with enzymes. Several enzymes are produced by bacteria which disrupt the biofilm architecture by degrading the composition of extracellular polymeric substances (EPS) such as exopolysaccharide, extracellular- DNA and protein. Thus, the interference of QS system by bacterial metabolic products and enzymatic catalysis, modification of the QS signaling molecules as well as enzymatic disruption of biofilm architecture have been considered as the alternative therapeutic approaches. This review article elaborates on the diversity of different bacterial species with respect to their metabolic products as well as enzymes and their molecular modes of action. The bacterial enzymes and metabolic products will open new and promising perspectives for the development of strategies against the pathogenic bacterial infections.
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Affiliation(s)
- Fazlurrahman Khan
- Marine-Integrated Bionics Research Center, Pukyong National University, Busan 48513, South Korea
| | | | - Young-Mog Kim
- Marine-Integrated Bionics Research Center, Pukyong National University, Busan 48513, South Korea.,Department of Food Science and Technology, Pukyong National University, Busan 48513, South Korea
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30
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Saygin H, Ay H, Guven K, Cetin D, Sahin N. Streptomyces cahuitamycinicus sp. nov., isolated from desert soil and reclassification of Streptomyces galilaeus as a later heterotypic synonym of Streptomyces bobili. Int J Syst Evol Microbiol 2020; 70:2750-2759. [PMID: 32176603 DOI: 10.1099/ijsem.0.004103] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
A novel actinobacterial strain, designated 13K301T, was isolated from a soil sample collected from the Karakum Desert, Turkmenistan. The taxonomic position of strain 13K301T was revealed by using a polyphasic approach. On the basis of 16S rRNA gene sequence analysis, strain 13K301T belongs to the genus Streptomyces and had highest sequence similarity to 'Streptomyces qaidamensis' S10T (99.2 %), Streptomyces flavovariabilis NRRL B-16367T (98.9 %) and Streptomyces phaeoluteigriseus DSM 41896T (98.8 %), but the strain formed a distinct clade in the phylogenetic tree. The DNA-DNA relatedness and average nucleotide identity values as well as evolutionary distances based on multilocus (atpD, gyrB, recA, rpoB and trpB) sequences between strain 13K301T and closely related type strains were significantly lower than the recommended threshold values. The cell wall contained ll-diaminopimelic acid and the whole-cell hydrolysates were glucose and ribose. Diphosphatidylglycerol, phosphatidylethanolamine, phosphatidylglycerol and phosphatidylinositol were determined as the predominant polar lipids. The major menaquinones were identified as MK-9(H8) and MK-9(H6). On the basis of these genotypic and phenotypic data, it is proposed that strain 13K301T should be classified as representative of a novel species of the genus Streptomyces, for which the name Streptomyces cahuitamycinicus sp. nov. is proposed. The type strain is 13K301T (=DSM 106873T=KCTC 49110T). In addition, the whole genome-based comparisons as well as the multilocus sequence analysis revealed that the type strains of Streptomyces galilaeus and Streptomyces bobili belong to a single species. It is, therefore, proposed that S. galilaeus be recognised as a heterotypic synonym of S. bobili for which an emended description is given.
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Affiliation(s)
- Hayrettin Saygin
- Department of Biology, Faculty of Science and Arts, Ondokuz Mayis University, 55139, Samsun, Turkey
| | - Hilal Ay
- Department of Molecular Biology and Genetics, Faculty of Sciences and Arts, Ondokuz Mayis University, 55139, Samsun, Turkey
| | - Kiymet Guven
- Department of Biology, Faculty of Science, Eskisehir Technical University, 26555, Eskisehir, Turkey
| | - Demet Cetin
- Division of Science Education, Department of Mathematics and Science Education, Gazi University, 06500, Ankara, Turkey
| | - Nevzat Sahin
- Department of Molecular Biology and Genetics, Faculty of Sciences and Arts, Ondokuz Mayis University, 55139, Samsun, Turkey
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31
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Yang C, Qian R, Xu Y, Yi J, Gu Y, Liu X, Yu H, Jiao B, Lu X, Zhang W. Marine Actinomycetes-derived Natural Products. Curr Top Med Chem 2020; 19:2868-2918. [PMID: 31724505 DOI: 10.2174/1568026619666191114102359] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2019] [Revised: 09/02/2019] [Accepted: 09/22/2019] [Indexed: 12/12/2022]
Abstract
Actinomycetes is an abundant resource for discovering a large number of lead compounds, which play an important role in microbial drug discovery. Compared to terrestrial microorganisms, marine actinomycetes have unique metabolic pathways because of their special living environment, which has the potential to produce a variety of bioactive substances. In this paper, secondary metabolites isolated from marine actinomycetes are reviewed (2013-2018), most of which exhibited cytotoxic, antibacterial, and antiviral biological activities.
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Affiliation(s)
- Chengfang Yang
- College of Basic Medical Sciences, Department of Biochemistry and Molecular Biology, Second Military Medical University, Shanghai, China
| | - Rui Qian
- College of Basic Medical Sciences, Department of Biochemistry and Molecular Biology, Second Military Medical University, Shanghai, China
| | - Yao Xu
- College of Basic Medical Sciences, Department of Biochemistry and Molecular Biology, Second Military Medical University, Shanghai, China
| | - Junxi Yi
- College of Basic Medical Sciences, Department of Biochemistry and Molecular Biology, Second Military Medical University, Shanghai, China
| | - Yiwen Gu
- College of Basic Medical Sciences, Department of Biochemistry and Molecular Biology, Second Military Medical University, Shanghai, China
| | - Xiaoyu Liu
- College of Basic Medical Sciences, Department of Biochemistry and Molecular Biology, Second Military Medical University, Shanghai, China
| | - Haobing Yu
- College of Basic Medical Sciences, Department of Biochemistry and Molecular Biology, Second Military Medical University, Shanghai, China
| | - Binghua Jiao
- College of Basic Medical Sciences, Department of Biochemistry and Molecular Biology, Second Military Medical University, Shanghai, China
| | - Xiaoling Lu
- College of Basic Medical Sciences, Department of Biochemistry and Molecular Biology, Second Military Medical University, Shanghai, China
| | - Wei Zhang
- Centre for Marine Bioproducts Development, Flinders University, Adelaide, Australia.,Department of Medical Biotechnology, School of Medicine, Flinders University, Adelaide, Australia
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32
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Ishikawa F, Nohara M, Nakamura S, Nakanishi I, Tanabe G. Precise Probing of Residue Roles by NRPS Code Swapping: Mutation, Enzymatic Characterization, Modeling, and Substrate Promiscuity of Aryl Acid Adenylation Domains. Biochemistry 2020; 59:351-363. [PMID: 31894971 DOI: 10.1021/acs.biochem.9b00748] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Aryl acids are most commonly found in iron-scavenging siderophores but are not limited to them. The nonribosomal peptide synthetase (NRPS) codes of aryl acids remain poorly elucidated relative to those of amino acids. Here, we defined more precisely the role of active-site residues in aryl acid adenylation domains (A-domains) by gradually grafting the NRPS codes used for salicylic acid (Sal) into an archetypal aryl acid A-domain, EntE [specific for the substrate 2,3-dihydroxybenzoic acid (DHB)]. Enzyme kinetics and modeling studies of these EntE variants demonstrated that the NRPS code residues at positions 236, 240, and 339 collectively regulate the substrate specificity toward DHB and Sal. Furthermore, the EntE variants exhibited the ability to activate the non-native aryl acids 3-hydroxybenzoic acid, 3-aminobenzoic acid, 3-fluorobenzoic acid, and 3-chlorobenzoic acid. These studies enhance our knowledge of the NRPS codes of aryl acids and could be exploited to reprogram aryl acid A-domains for non-native aryl acids.
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Affiliation(s)
- Fumihiro Ishikawa
- Laboratory of Pharmaceutical Organic Chemistry, Faculty of Pharmacy , Kindai University , 3-4-1 Kowakae , Higashi-Osaka , Osaka 577-8502 , Japan
| | - Maya Nohara
- Laboratory of Pharmaceutical Organic Chemistry, Faculty of Pharmacy , Kindai University , 3-4-1 Kowakae , Higashi-Osaka , Osaka 577-8502 , Japan
| | - Shinya Nakamura
- Laboratory of Computational Drug Design and Discovery, Faculty of Pharmacy , Kindai University , 3-4-1 Kowakae , Higashi-Osaka , Osaka 577-8502 , Japan
| | - Isao Nakanishi
- Laboratory of Computational Drug Design and Discovery, Faculty of Pharmacy , Kindai University , 3-4-1 Kowakae , Higashi-Osaka , Osaka 577-8502 , Japan
| | - Genzoh Tanabe
- Laboratory of Pharmaceutical Organic Chemistry, Faculty of Pharmacy , Kindai University , 3-4-1 Kowakae , Higashi-Osaka , Osaka 577-8502 , Japan
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33
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Ma Y, Wang C, Li Y, Li J, Wan Q, Chen J, Tay FR, Niu L. Considerations and Caveats in Combating ESKAPE Pathogens against Nosocomial Infections. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2020; 7:1901872. [PMID: 31921562 PMCID: PMC6947519 DOI: 10.1002/advs.201901872] [Citation(s) in RCA: 139] [Impact Index Per Article: 34.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/22/2019] [Revised: 10/04/2019] [Indexed: 05/19/2023]
Abstract
ESKAPE pathogens (Enterococcus faecium, Staphylococcus aureus, Klebsiella pneumoniae, Acinetobacter baumannii, Pseudomonas aeruginosa, and Enterobacter species) are among the most common opportunistic pathogens in nosocomial infections. ESKAPE pathogens distinguish themselves from normal ones by developing a high level of antibiotic resistance that involves multiple mechanisms. Contemporary therapeutic strategies which are potential options in combating ESKAPE bacteria need further investigation. Herein, a broad overview of the antimicrobial research on ESKAPE pathogens over the past five years is provided with prospective clinical applications.
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Affiliation(s)
- Yu‐Xuan Ma
- State Key Laboratory of Military StomatologyNational Clinical Research Center for Oral DiseasesShaanxi Key Laboratory of StomatologyDepartment of ProsthodonticsSchool of StomatologyThe Fourth Military Medical University145 Changle West RoadXi'anShaanxi710032P. R. China
| | - Chen‐Yu Wang
- State Key Laboratory of Military StomatologyNational Clinical Research Center for Oral DiseasesShaanxi Key Laboratory of StomatologyDepartment of ProsthodonticsSchool of StomatologyThe Fourth Military Medical University145 Changle West RoadXi'anShaanxi710032P. R. China
| | - Yuan‐Yuan Li
- State Key Laboratory of Military StomatologyNational Clinical Research Center for Oral DiseasesShaanxi Key Laboratory of StomatologyDepartment of ProsthodonticsSchool of StomatologyThe Fourth Military Medical University145 Changle West RoadXi'anShaanxi710032P. R. China
| | - Jing Li
- State Key Laboratory of Military StomatologyNational Clinical Research Center for Oral DiseasesShaanxi Key Laboratory of StomatologyDepartment of ProsthodonticsSchool of StomatologyThe Fourth Military Medical University145 Changle West RoadXi'anShaanxi710032P. R. China
| | - Qian‐Qian Wan
- State Key Laboratory of Military StomatologyNational Clinical Research Center for Oral DiseasesShaanxi Key Laboratory of StomatologyDepartment of ProsthodonticsSchool of StomatologyThe Fourth Military Medical University145 Changle West RoadXi'anShaanxi710032P. R. China
| | - Ji‐Hua Chen
- State Key Laboratory of Military StomatologyNational Clinical Research Center for Oral DiseasesShaanxi Key Laboratory of StomatologyDepartment of ProsthodonticsSchool of StomatologyThe Fourth Military Medical University145 Changle West RoadXi'anShaanxi710032P. R. China
| | - Franklin R. Tay
- State Key Laboratory of Military StomatologyNational Clinical Research Center for Oral DiseasesShaanxi Key Laboratory of StomatologyDepartment of ProsthodonticsSchool of StomatologyThe Fourth Military Medical University145 Changle West RoadXi'anShaanxi710032P. R. China
- The Graduate SchoolAugusta University1430, John Wesley Gilbert DriveAugustaGA30912‐1129USA
| | - Li‐Na Niu
- State Key Laboratory of Military StomatologyNational Clinical Research Center for Oral DiseasesShaanxi Key Laboratory of StomatologyDepartment of ProsthodonticsSchool of StomatologyThe Fourth Military Medical University145 Changle West RoadXi'anShaanxi710032P. R. China
- The Graduate SchoolAugusta University1430, John Wesley Gilbert DriveAugustaGA30912‐1129USA
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34
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Gómez-Rodríguez L, Schultz PJ, Tamayo-Castillo G, Dotson GD, Sherman DH, Tripathi A. Adipostatins E-J, New Potent Antimicrobials Identified as Inhibitors of Coenzyme-A Biosynthesis. Tetrahedron Lett 2019; 61. [PMID: 32863451 DOI: 10.1016/j.tetlet.2019.151469] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Phosphopantetheine is a key structural element in biological acyl transfer reactions found embedded within coenzyme A (CoA). Phosphopantothenoylcysteine synthetase (PPCS) is responsible for installing a cysteamine group within phosphopantetheine. Therefore, it holds considerable potential as a drug target for developing new antimicrobials. In this study, we adapted a biochemical assay specific for bacterial PPCS to screen for inhibitors of CoA biosynthesis against a library of marine microbial derived natural product extracts (NPEs). Analysis of the NPE derived from Streptomyces blancoensis led to the isolation of novel antibiotics (10-12, and 14) from the adipostatin class of molecules. The most potent molecule (10) displayed in vitro activity with IC50= 0.93 μM, against S. pneumoniae PPCS. The whole cell antimicrobial assay against isolated molecules demonstrated their ability to penetrate bacterial cells and inhibit clinically relevant pathogenic strains. This establishes the validity of PPCS as a pertinent drug target, and the value of NPEs to provide new antibiotics.
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Affiliation(s)
- Lyanne Gómez-Rodríguez
- UM Natural Products Discovery Core, Life Sciences Institute, University of Michigan, Ann Arbor, Michigan 48109.,Program in Chemical Biology, University of Michigan, Ann Arbor, Michigan 48109
| | - Pamela J Schultz
- UM Natural Products Discovery Core, Life Sciences Institute, University of Michigan, Ann Arbor, Michigan 48109
| | - Giselle Tamayo-Castillo
- Escuela de Química & CIPRONA, Universidad de Costa Rica, 2060 San Pedro de Costa Rica & INBio, Santo Domingo de Heredia, Heredia, Costa Rica
| | - Garry D Dotson
- Department of Medicinal Chemistry, University of Michigan, Ann Arbor, Michigan 48109
| | - David H Sherman
- UM Natural Products Discovery Core, Life Sciences Institute, University of Michigan, Ann Arbor, Michigan 48109.,Department of Medicinal Chemistry, University of Michigan, Ann Arbor, Michigan 48109.,Department of Chemistry, University of Michigan, Ann Arbor, Michigan 48109.,Department of Microbiology and Immunology, University of Michigan, Ann Arbor, Michigan 48109
| | - Ashootosh Tripathi
- UM Natural Products Discovery Core, Life Sciences Institute, University of Michigan, Ann Arbor, Michigan 48109.,Department of Medicinal Chemistry, University of Michigan, Ann Arbor, Michigan 48109
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Lee JK, Mereuta L, Luchian T, Park Y. Antimicrobial peptide HPA3NT3-A2 effectively inhibits biofilm formation in mice infected with drug-resistant bacteria. Biomater Sci 2019; 7:5068-5083. [PMID: 31555777 DOI: 10.1039/c9bm01051c] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Bacterial biofilms formed through secretion of extracellular polymeric substances (EPS) have been implicated in many serious infections and can increase antibiotic resistance by a factor of more than 1000. Here, we examined the abilities of the antimicrobial peptide HPA3NT3-A2 to inhibit and reduce biofilm formation, eliminate EPS, and suppress inflammation in mice infected with clinical isolates of drug-resistant Pseudomonas aeruginosa strains. HPA3NT3-A2 was developed from a desirable analogue peptide, HPA3NT3, derived from residues 2-20 of the Helicobacter pylori ribosomal protein L1. HPA3NT3-A2 showed stronger activity against planktonic cells (MIC: 8 μM) compared to ciprofloxacin or tobramycin (>512 μM), and a favorable minimum biofilm inhibition and elimination concentration. This peptide also neutralized LPS; decreased levels of EPS; inhibited the production of pro-inflammatory cytokines in the lung, kidney, and spleen; decreased white blood cell counts; and increased survival among infected mice.
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Affiliation(s)
- Jong-Kook Lee
- Research Center for Proteinaceous Materials (RCPM), Chosun University, Gwangju 501-759, Korea
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Yan JX, Chevrette MG, Braun DR, Harper MK, Currie CR, Bugni TS. Madurastatin D1 and D2, Oxazoline Containing Siderophores Isolated from an Actinomadura sp.. Org Lett 2019; 21:6275-6279. [PMID: 31380646 PMCID: PMC6941472 DOI: 10.1021/acs.orglett.9b02159] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Two new siderophores, madurastatin D1 and D2, together with (-)-madurastatin C1, the enantiomer of a known compound, were isolated from marine-derived Actinomadura sp. The presence of an unusual 4-imidazolidinone ring in madurastatins D1 and D2 inspired us to sequence the Actinomadura sp. genome and to identify the mad biosynthetic gene cluster, knowledge of which enables us to now propose a biosynthetic pathway. Madurastatin D1 and D2 are moderately active in antimicrobial assays with M. luteus.
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Affiliation(s)
- Jia-Xuan Yan
- Pharmaceutical Sciences Division, University of Wisconsin-Madison, 777 Highland Ave, Madison, WI, 53705, USA
| | - Marc G. Chevrette
- Department of Genetics, University of Wisconsin-Madison, 425 G Henry Mall, Madison, WI, 53706, USA
- Department of Bacteriology, University of Wisconsin-Madison, 1550 Linden Ave, Madison, WI, 53706, USA
| | - Doug R. Braun
- Pharmaceutical Sciences Division, University of Wisconsin-Madison, 777 Highland Ave, Madison, WI, 53705, USA
| | - Mary Kay Harper
- Department of Medicinal Chemistry, University of Utah, 30 South 2000 East, Salt Lake City, UT, 84112, USA
| | - Cameron R. Currie
- Department of Bacteriology, University of Wisconsin-Madison, 1550 Linden Ave, Madison, WI, 53706, USA
| | - Tim S. Bugni
- Pharmaceutical Sciences Division, University of Wisconsin-Madison, 777 Highland Ave, Madison, WI, 53705, USA
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37
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Pham JV, Yilma MA, Feliz A, Majid MT, Maffetone N, Walker JR, Kim E, Cho HJ, Reynolds JM, Song MC, Park SR, Yoon YJ. A Review of the Microbial Production of Bioactive Natural Products and Biologics. Front Microbiol 2019; 10:1404. [PMID: 31281299 PMCID: PMC6596283 DOI: 10.3389/fmicb.2019.01404] [Citation(s) in RCA: 233] [Impact Index Per Article: 46.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2019] [Accepted: 06/04/2019] [Indexed: 12/24/2022] Open
Abstract
A variety of organisms, such as bacteria, fungi, and plants, produce secondary metabolites, also known as natural products. Natural products have been a prolific source and an inspiration for numerous medical agents with widely divergent chemical structures and biological activities, including antimicrobial, immunosuppressive, anticancer, and anti-inflammatory activities, many of which have been developed as treatments and have potential therapeutic applications for human diseases. Aside from natural products, the recent development of recombinant DNA technology has sparked the development of a wide array of biopharmaceutical products, such as recombinant proteins, offering significant advances in treating a broad spectrum of medical illnesses and conditions. Herein, we will introduce the structures and diverse biological activities of natural products and recombinant proteins that have been exploited as valuable molecules in medicine, agriculture and insect control. In addition, we will explore past and ongoing efforts along with achievements in the development of robust and promising microorganisms as cell factories to produce biologically active molecules. Furthermore, we will review multi-disciplinary and comprehensive engineering approaches directed at improving yields of microbial production of natural products and proteins and generating novel molecules. Throughout this article, we will suggest ways in which microbial-derived biologically active molecular entities and their analogs could continue to inspire the development of new therapeutic agents in academia and industry.
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Affiliation(s)
- Janette V. Pham
- Geisinger Commonwealth School of Medicine, Scranton, PA, United States
- Baruch S. Blumberg Institute, Doylestown, PA, United States
| | - Mariamawit A. Yilma
- Geisinger Commonwealth School of Medicine, Scranton, PA, United States
- Baruch S. Blumberg Institute, Doylestown, PA, United States
| | - Adriana Feliz
- Geisinger Commonwealth School of Medicine, Scranton, PA, United States
- Baruch S. Blumberg Institute, Doylestown, PA, United States
| | - Murtadha T. Majid
- Geisinger Commonwealth School of Medicine, Scranton, PA, United States
- Baruch S. Blumberg Institute, Doylestown, PA, United States
| | - Nicholas Maffetone
- Geisinger Commonwealth School of Medicine, Scranton, PA, United States
- Baruch S. Blumberg Institute, Doylestown, PA, United States
| | - Jorge R. Walker
- Geisinger Commonwealth School of Medicine, Scranton, PA, United States
- Baruch S. Blumberg Institute, Doylestown, PA, United States
| | - Eunji Kim
- Department of Chemistry and Nanoscience, Ewha Womans University, Seoul, South Korea
| | - Hyo Je Cho
- School of Life Sciences and Biotechnology, Kyungpook National University, Daegu, South Korea
| | - Jared M. Reynolds
- Geisinger Commonwealth School of Medicine, Scranton, PA, United States
- Baruch S. Blumberg Institute, Doylestown, PA, United States
| | - Myoung Chong Song
- Department of Chemistry and Nanoscience, Ewha Womans University, Seoul, South Korea
| | - Sung Ryeol Park
- Geisinger Commonwealth School of Medicine, Scranton, PA, United States
- Baruch S. Blumberg Institute, Doylestown, PA, United States
- Natural Products Discovery Institute, Doylestown, PA, United States
| | - Yeo Joon Yoon
- Department of Chemistry and Nanoscience, Ewha Womans University, Seoul, South Korea
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Abstract
Bacterial natural products display astounding structural diversity, which, in turn, endows them with a remarkable range of biological activities that are of significant value to modern society. Such structural features are generated by biosynthetic enzymes that construct core scaffolds or perform peripheral modifications, and can thus define natural product families, introduce pharmacophores and permit metabolic diversification. Modern genomics approaches have greatly enhanced our ability to access and characterize natural product pathways via sequence-similarity-based bioinformatics discovery strategies. However, many biosynthetic enzymes catalyse exceptional, unprecedented transformations that continue to defy functional prediction and remain hidden from us in bacterial (meta)genomic sequence data. In this Review, we highlight exciting examples of unusual enzymology that have been uncovered recently in the context of natural product biosynthesis. These suggest that much of the natural product diversity, including entire substance classes, awaits discovery. New approaches to lift the veil on the cryptic chemistries of the natural product universe are also discussed.
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Actinobacteria-a promising natural source of anti-biofilm agents. Int Microbiol 2019; 22:403-409. [PMID: 30847714 DOI: 10.1007/s10123-019-00066-4] [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] [Received: 10/22/2018] [Revised: 02/14/2019] [Accepted: 02/15/2019] [Indexed: 10/27/2022]
Abstract
A biofilm is a community of microorganisms attached to a surface and embedded in a matrix of extracellular polymeric substances. Biofilms confer resistance towards conventional antibiotic treatments; thus, there is an urgent need for newer and more effective antimicrobial agents that can act against these biofilms. Due to this situation, various studies have been done to investigate the anti-biofilm effects of natural products including bioactive compounds extracted from microorganisms such as Actinobacteria. This review provides an insight into the anti-biofilm potential of Actinobacteria against various pathogenic bacteria, which hopefully provides useful information, guidance, and improvements for future antimicrobial studies. Nevertheless, further research on the anti-biofilm mechanisms and compound modifications to produce more potent anti-biofilm effects are required.
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40
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Belete TM. Novel targets to develop new antibacterial agents and novel alternatives to antibacterial agents. ACTA ACUST UNITED AC 2019. [DOI: 10.1016/j.humic.2019.01.001] [Citation(s) in RCA: 48] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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41
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Morgan KD, Andersen RJ, Ryan KS. Piperazic acid-containing natural products: structures and biosynthesis. Nat Prod Rep 2019; 36:1628-1653. [DOI: 10.1039/c8np00076j] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Piperazic acid is a cyclic hydrazine and a non-proteinogenic amino acid found in diverse non-ribosomal peptide (NRP) and hybrid NRP–polyketide (PK) structures.
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Affiliation(s)
- Kalindi D. Morgan
- Department of Chemistry
- University of British Columbia
- Vancouver
- Canada
| | | | - Katherine S. Ryan
- Department of Chemistry
- University of British Columbia
- Vancouver
- Canada
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42
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Lakemeyer M, Zhao W, Mandl FA, Hammann P, Sieber SA. Thinking Outside the Box-Novel Antibacterials To Tackle the Resistance Crisis. Angew Chem Int Ed Engl 2018; 57:14440-14475. [PMID: 29939462 DOI: 10.1002/anie.201804971] [Citation(s) in RCA: 101] [Impact Index Per Article: 16.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2018] [Indexed: 12/13/2022]
Abstract
The public view on antibiotics as reliable medicines changed when reports about "resistant superbugs" appeared in the news. While reasons for this resistance development are easily spotted, solutions for re-establishing effective antibiotics are still in their infancy. This Review encompasses several aspects of the antibiotic development pipeline from very early strategies to mature drugs. An interdisciplinary overview is given of methods suitable for mining novel antibiotics and strategies discussed to unravel their modes of action. Select examples of antibiotics recently identified by using these platforms not only illustrate the efficiency of these measures, but also highlight promising clinical candidates with therapeutic potential. Furthermore, the concept of molecules that disarm pathogens by addressing gatekeepers of virulence will be covered. The Review concludes with an evaluation of antibacterials currently in clinical development. Overall, this Review aims to connect select innovative antimicrobial approaches to stimulate interdisciplinary partnerships between chemists from academia and industry.
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Affiliation(s)
- Markus Lakemeyer
- Department of Chemistry, Chair of Organic Chemistry II, Center for Integrated Protein Science (CIPSM), Technische Universität München, Lichtenbergstrasse 4, 85747, Garching, Germany
| | - Weining Zhao
- Department of Chemistry, Chair of Organic Chemistry II, Center for Integrated Protein Science (CIPSM), Technische Universität München, Lichtenbergstrasse 4, 85747, Garching, Germany
| | - Franziska A Mandl
- Department of Chemistry, Chair of Organic Chemistry II, Center for Integrated Protein Science (CIPSM), Technische Universität München, Lichtenbergstrasse 4, 85747, Garching, Germany
| | - Peter Hammann
- R&D Therapeutic Area Infectious Diseases, Sanofi-Aventis (Deutschland) GmbH, Industriepark Höchst, 65926, Frankfurt am Main, Germany
| | - Stephan A Sieber
- Department of Chemistry, Chair of Organic Chemistry II, Center for Integrated Protein Science (CIPSM), Technische Universität München, Lichtenbergstrasse 4, 85747, Garching, Germany
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43
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Lakemeyer M, Zhao W, Mandl FA, Hammann P, Sieber SA. Über bisherige Denkweisen hinaus - neue Wirkstoffe zur Überwindung der Antibiotika-Krise. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201804971] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Markus Lakemeyer
- Fakultät für Chemie; Lehrstuhl für Organische Chemie II, Center for Integrated Protein Science (CIPSM); Technische Universität München; Lichtenbergstraße 4 85747 Garching Deutschland
| | - Weining Zhao
- Fakultät für Chemie; Lehrstuhl für Organische Chemie II, Center for Integrated Protein Science (CIPSM); Technische Universität München; Lichtenbergstraße 4 85747 Garching Deutschland
| | - Franziska A. Mandl
- Fakultät für Chemie; Lehrstuhl für Organische Chemie II, Center for Integrated Protein Science (CIPSM); Technische Universität München; Lichtenbergstraße 4 85747 Garching Deutschland
| | - Peter Hammann
- R&D Therapeutic Area Infectious Diseases; Sanofi-Aventis (Deutschland) GmbH; Industriepark Höchst 65926 Frankfurt am Main Deutschland
| | - Stephan A. Sieber
- Fakultät für Chemie; Lehrstuhl für Organische Chemie II, Center for Integrated Protein Science (CIPSM); Technische Universität München; Lichtenbergstraße 4 85747 Garching Deutschland
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44
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Tripathi A, Park SR, Sikkema AP, Cho HJ, Wu J, Lee B, Xi C, Smith JL, Sherman DH. A Defined and Flexible Pocket Explains Aryl Substrate Promiscuity of the Cahuitamycin Starter Unit-Activating Enzyme CahJ. Chembiochem 2018; 19:1595-1600. [PMID: 29742306 PMCID: PMC6105470 DOI: 10.1002/cbic.201800233] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2018] [Indexed: 01/02/2023]
Abstract
Cahuitamycins are biofilm inhibitors assembled by a convergent nonribosomal peptide synthetase pathway. Previous genetic analysis indicated that a discrete enzyme, CahJ, serves as a gatekeeper for cahuitamycin structural diversification. Here, the CahJ protein was probed structurally and functionally to guide the formation of new analogues by mutasynthetic studies. This analysis enabled the in vivo production of a new cahuitamycin congener through targeted precursor incorporation.
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Affiliation(s)
- Ashootosh Tripathi
- Life Sciences Institute, University of Michigan, 210 Washtenaw Avenue, Ann Arbor, MI, 48109-2216, USA
- Department of Medicinal Chemistry, University of Michigan, Ann Arbor, MI, 48109, USA
| | - Sung Ryeol Park
- Life Sciences Institute, University of Michigan, 210 Washtenaw Avenue, Ann Arbor, MI, 48109-2216, USA
- Baruch S. Blumberg Institute, Natural Products Discovery Institute, 3805 Old Easton Road, Doylestown, PA, 18902, USA
| | - Andrew P Sikkema
- Life Sciences Institute, University of Michigan, 210 Washtenaw Avenue, Ann Arbor, MI, 48109-2216, USA
- Department of Biological Chemistry, University of Michigan, 1150 W. Medical Center Drive, Ann Arbor, MI, 48109, USA
- Epigenetics and Stem Cell Biology Laboratory, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, NC, 27709, USA
| | - Hyo Je Cho
- Department of Pathology, University of Michigan, Ann Arbor, MI, 48109, USA
| | - Jianfeng Wu
- Department of Environmental Health Sciences, University of Michigan School of Public Health, Ann Arbor, MI, 48109, USA
| | - Brian Lee
- Life Sciences Institute, University of Michigan, 210 Washtenaw Avenue, Ann Arbor, MI, 48109-2216, USA
| | - Chuanwu Xi
- Department of Environmental Health Sciences, University of Michigan School of Public Health, Ann Arbor, MI, 48109, USA
| | - Janet L Smith
- Life Sciences Institute, University of Michigan, 210 Washtenaw Avenue, Ann Arbor, MI, 48109-2216, USA
- Department of Biological Chemistry, University of Michigan, 1150 W. Medical Center Drive, Ann Arbor, MI, 48109, USA
| | - David H Sherman
- Life Sciences Institute, University of Michigan, 210 Washtenaw Avenue, Ann Arbor, MI, 48109-2216, USA
- Department of Medicinal Chemistry, University of Michigan, Ann Arbor, MI, 48109, USA
- Department of Chemistry, University of Michigan, Ann Arbor, MI, 48109, USA
- Department of Microbiology and Immunology, University of Michigan, Ann Arbor, MI, 48109, USA
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45
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Mike LA, Tripathi A, Blankenship CM, Saluk A, Schultz PJ, Tamayo-Castillo G, Sherman DH, Mobley HLT. Discovery of nicoyamycin A, an inhibitor of uropathogenic Escherichia coli growth in low iron environments. Chem Commun (Camb) 2018; 53:12778-12781. [PMID: 29139494 DOI: 10.1039/c7cc07732g] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
High-throughput screening and activity-guided purification identified nicoyamycin A, a natural product comprised of an uncommon 3-methyl-1,4-dioxane ring incorporated into a desferrioxamine-like backbone via a spiroaminal linkage. Nicoyamycin A potently inhibits uropathogenic Escherichia coli growth in low iron medium, a promising step toward developing novel antibiotics to treat recalcitrant bacterial infections.
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Affiliation(s)
- Laura A Mike
- Department of Microbiology & Immunology, University of Michigan, Ann Arbor, MI, USA.
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46
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Teng P, Nimmagadda A, Su M, Hong Y, Shen N, Li C, Tsai LY, Cao J, Li Q, Cai J. Novel bis-cyclic guanidines as potent membrane-active antibacterial agents with therapeutic potential. Chem Commun (Camb) 2018; 53:11948-11951. [PMID: 29052670 DOI: 10.1039/c7cc07285f] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
We designed a class of small dimeric cyclic guanidine derivatives which display potent antibacterial activity against both multidrug-resistant Gram-negative and Gram-positive bacteria. They could compromise bacterial membranes without developing resistance, inhibit biofilms formed by E. coli, and exhibit excellent in vivo activity in the MRSA-infected thigh burden mouse model.
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Affiliation(s)
- Peng Teng
- Department of Chemistry, University of South Florida, Tampa, FL 33620, USA.
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47
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Abstract
Covering: 2016. Previous review: Nat. Prod. Rep., 2017, 34, 235-294This review covers the literature published in 2016 for marine natural products (MNPs), with 757 citations (643 for the period January to December 2016) referring to compounds isolated from marine microorganisms and phytoplankton, green, brown and red algae, sponges, cnidarians, bryozoans, molluscs, tunicates, echinoderms, mangroves and other intertidal plants and microorganisms. The emphasis is on new compounds (1277 in 432 papers for 2016), together with the relevant biological activities, source organisms and country of origin. Reviews, biosynthetic studies, first syntheses, and syntheses that led to the revision of structures or stereochemistries, have been included.
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Affiliation(s)
- John W Blunt
- School of Physical and Chemical Sciences, University of Canterbury, Christchurch, New Zealand
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48
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Prasad YS, Miryala S, Lalitha K, Ranjitha K, Barbhaiwala S, Sridharan V, Maheswari CU, Srinandan CS, Nagarajan S. Disassembly of Bacterial Biofilms by the Self-Assembled Glycolipids Derived from Renewable Resources. ACS APPLIED MATERIALS & INTERFACES 2017; 9:40047-40058. [PMID: 29096062 DOI: 10.1021/acsami.7b12225] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
More than 80% of chronic infections of bacteria are caused by biofilms. It is also a long-term survival strategy of the pathogens in a nonhost environment. Several amphiphilic molecules have been used in the past to potentially disrupt biofilms; however, the involvement of multistep synthesis, complicated purification and poor yield still remains a major problem. Herein, we report a facile synthesis of glycolipid based surfactant from renewable feedstocks in good yield. The nature of carbohydrate unit present in glycolipid influence the ring chain tautomerism, which resulted in the existence of either cyclic structure or both cyclic and acyclic structures. Interestingly, these glycolipids self-assemble into gel in highly hydrophobic solvents and vegetable oils, and displayed foam formation in water. The potential application of these self-assembled glycolipids to disrupt preformed biofilm was examined against various pathogens. It was observed that glycolipid 6a disrupts Staphylococcus aureus and Listeria monocytogenes biofilm, while the compound 6c was effective in disassembling uropathogenic E. coli and Salmonella enterica Typhimurium biofilms. Altogether, the supramolecular self-assembled materials, either as gel or as surfactant solution could be potentially used for surface cleansing in hospital environments or the food processing industries to effectively reduce pathogenic biofilms.
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Affiliation(s)
- Yadavali Siva Prasad
- Organic Synthesis Group, Department of Chemistry and CeNTAB, School of Chemical and Biotechnology, SASTRA University , Thanjavur-613401, Tamil Nadu, India
| | - Sandeep Miryala
- Biofilm Biology Lab, Centre for Research in Infectious Diseases, School of Chemical and Biotechnology, SASTRA University , Thanjavur-613401, Tamil Nadu, India
| | - Krishnamoorthy Lalitha
- Organic Synthesis Group, Department of Chemistry and CeNTAB, School of Chemical and Biotechnology, SASTRA University , Thanjavur-613401, Tamil Nadu, India
| | - K Ranjitha
- Organic Synthesis Group, Department of Chemistry and CeNTAB, School of Chemical and Biotechnology, SASTRA University , Thanjavur-613401, Tamil Nadu, India
| | - Shehnaz Barbhaiwala
- Biofilm Biology Lab, Centre for Research in Infectious Diseases, School of Chemical and Biotechnology, SASTRA University , Thanjavur-613401, Tamil Nadu, India
| | - Vellaisamy Sridharan
- Organic Synthesis Group, Department of Chemistry and CeNTAB, School of Chemical and Biotechnology, SASTRA University , Thanjavur-613401, Tamil Nadu, India
| | - C Uma Maheswari
- Organic Synthesis Group, Department of Chemistry and CeNTAB, School of Chemical and Biotechnology, SASTRA University , Thanjavur-613401, Tamil Nadu, India
| | - C S Srinandan
- Biofilm Biology Lab, Centre for Research in Infectious Diseases, School of Chemical and Biotechnology, SASTRA University , Thanjavur-613401, Tamil Nadu, India
| | - Subbiah Nagarajan
- Organic Synthesis Group, Department of Chemistry and CeNTAB, School of Chemical and Biotechnology, SASTRA University , Thanjavur-613401, Tamil Nadu, India
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49
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Wang P, Zeng Z, Wang W, Wen Z, Li J, Wang X. Dissemination and loss of a biofilm-related genomic island in marine Pseudoalteromonas mediated by integrative and conjugative elements. Environ Microbiol 2017; 19:4620-4637. [PMID: 28892292 DOI: 10.1111/1462-2920.13925] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2017] [Revised: 08/31/2017] [Accepted: 08/31/2017] [Indexed: 01/24/2023]
Abstract
Acquisition of genomic islands (GIs) plays a central role in the diversification and adaptation of bacteria. Some GIs can be mobilized in trans by integrative and conjugative elements (ICEs) or conjugative plasmids if the GIs carry specific transfer-related sequences. However, the transfer mechanism of GIs lacking such elements remains largely unexplored. Here, we investigated the transmissibility of a GI found in a coral-associated marine bacterium. This GI does not carry genes with transfer functions, but it carries four genes required for robust biofilm formation. Notably, this GI is inserted in the integration site for SXT/R391 ICEs. We demonstrated that acquisition of an SXT/R391 ICE results in either a tandem GI/ICE arrangement or the complete displacement of the GI. The GI displacement by the ICE greatly reduces biofilm formation. In contrast, the tandem integration of the ICE with the GI in cis allows the GI to hijack the transfer machinery of the ICE to excise, transfer and re-integrate into a new host. Collectively, our findings reveal that the integration of an ICE into a GI integration site enables rapid genome dynamics and a new mechanism by which SXT/R391 ICEs can augment genome plasticity.
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Affiliation(s)
- Pengxia Wang
- Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangdong Key Laboratory of Marine Materia Medica, the South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China
| | - Zhenshun Zeng
- Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangdong Key Laboratory of Marine Materia Medica, the South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China
| | - Weiquan Wang
- Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangdong Key Laboratory of Marine Materia Medica, the South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China.,University of Chinese Academy of Sciences, Beijing 100049, China
| | - Zhongling Wen
- Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangdong Key Laboratory of Marine Materia Medica, the South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China.,University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jie Li
- Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangdong Key Laboratory of Marine Materia Medica, the South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China
| | - Xiaoxue Wang
- Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangdong Key Laboratory of Marine Materia Medica, the South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China.,University of Chinese Academy of Sciences, Beijing 100049, China
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50
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Guzmán-Trampe S, Ceapa CD, Manzo-Ruiz M, Sánchez S. Synthetic biology era: Improving antibiotic’s world. Biochem Pharmacol 2017; 134:99-113. [DOI: 10.1016/j.bcp.2017.01.015] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2016] [Accepted: 01/26/2017] [Indexed: 12/12/2022]
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