1
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Solga D, Wieske LHE, Wilcox S, Zeilinger C, Jansen-Olliges L, Cirnski K, Herrmann J, Müller R, Erdelyi M, Kirschning A. Is Simultaneous Binding to DNA and Gyrase Important for the Antibacterial Activity of Cystobactamids? Chemistry 2024; 30:e202303796. [PMID: 38217886 DOI: 10.1002/chem.202303796] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2023] [Revised: 12/29/2023] [Accepted: 01/08/2024] [Indexed: 01/15/2024]
Abstract
Cystobactamids are aromatic oligoamides that exert their natural antibacterial properties by inhibition of bacterial gyrases. Such aromatic oligoamides were proposed to inhibit α-helix-mediated protein-protein interactions and may serve for specific recognition of DNA. Based on this suggestion, we designed new derivatives that have duplicated cystobactamid triarene units as model systems to decipher the specific binding mode of cystobactamids to double stranded DNA. Solution NMR analyses revealed that natural cystobactamids as well as their elongated analogues show an overall bent shape at their central aliphatic unit, with an average CX-CY-CZ angle of ~110 degrees. Our finding is corroborated by the target-bound structure of close analogues, as established by cryo-EM very recently. Cystobactamid CN-861-2 binds directly to the bacterial gyrase with an affinity of 9 μM, and also exhibits DNA-binding properties with specificity for AT-rich DNA. Elongation/dimerization of the triarene subunit of native cystobactamids is demonstrated to lead to an increase in DNA binding affinity. This implies that cystobactamids' gyrase inhibitory activity necessitates not just interaction with the gyrase itself, but also with DNA via their triarene unit.
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Affiliation(s)
- Danny Solga
- Institute of Organic Chemistry, Leibniz University Hannover, Schneiderberg 1B, 30167, Hannover, Germany
| | - Lianne H E Wieske
- Department of Chemistry - BMC, Uppsala University, Husargatan 3, SE-752 37, Uppsala, Sweden
| | - Scott Wilcox
- Department of Chemistry - BMC, Uppsala University, Husargatan 3, SE-752 37, Uppsala, Sweden
| | - Carsten Zeilinger
- Institute of Biophysics and Center of Biomolecular Drug Research (BMWZ), Leibniz University Hannover, Schneiderberg 38, 30167, Hannover, Germany
| | - Linda Jansen-Olliges
- Institute of Biophysics and Center of Biomolecular Drug Research (BMWZ), Leibniz University Hannover, Schneiderberg 38, 30167, Hannover, Germany
| | - Katarina Cirnski
- Department of Microbial Natural Products, Helmholtz Institute for Pharmaceutical Research Saarland, Helmholtz Centre for Infection Research and Saarland University, Campus E8.1, 66123, Saarbrücken, Germany
| | - Jennifer Herrmann
- Department of Microbial Natural Products, Helmholtz Institute for Pharmaceutical Research Saarland, Helmholtz Centre for Infection Research and Saarland University, Campus E8.1, 66123, Saarbrücken, Germany
| | - Rolf Müller
- Department of Microbial Natural Products, Helmholtz Institute for Pharmaceutical Research Saarland, Helmholtz Centre for Infection Research and Saarland University, Campus E8.1, 66123, Saarbrücken, Germany
| | - Mate Erdelyi
- Department of Chemistry - BMC, Uppsala University, Husargatan 3, SE-752 37, Uppsala, Sweden
| | - Andreas Kirschning
- Institute of Organic Chemistry, Leibniz University Hannover, Schneiderberg 1B, 30167, Hannover, Germany
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2
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Choi HY, Kim BM, Kim YR, Yang T, Ahn S, Yong D, Kwak JH, Kim WG. Antibacterial Activity against Clinical Isolates and In Vivo Efficacy of Coralmycins. Antibiotics (Basel) 2022; 11:antibiotics11070902. [PMID: 35884156 PMCID: PMC9311539 DOI: 10.3390/antibiotics11070902] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2022] [Revised: 07/04/2022] [Accepted: 07/05/2022] [Indexed: 02/04/2023] Open
Abstract
Coralmycins, such as coralmycin A and DH-coralmycin A, have novel molecular skeletons and have been reported to exhibit potent antibacterial activity against standard Gram-positive bacterial strains. Here, the in vitro antibacterial activity against an extensive clinical isolate collection, time-kill kinetics, pharmacokinetics (PK), and in vivo efficacy of coralmycins were studied. Coralmycin A showed potent antibacterial activity with an MIC90 of 1 mg/L against 73 clinical methicillin-resistant Staphylococcus aureus and coagulase-negative staphylococci isolates, which was 2–8 times higher than the corresponding activities of DH-coralmycin A, vancomycin, daptomycin, and linezolid, and against 73 vancomycin-resistant Enterococcus and Streptococcus pneumoniae isolates, which was 4–16 times higher than the corresponding activities of DH-coralmycin A, daptomycin, and linezolid. Pharmacokinetic analysis after i.v. injection showed that coralmycins have a moderate volume of distribution and moderate-to-high clearance in mice. The coralmycin A and DH-coralmycin A bioavailability values were 61.3% and 11.7%, respectively, after s.c. administration. In a mouse respiratory tract infection model, coralmycin A showed bacteriostatic and bactericidal in vivo efficacies at an s.c. administration of 4 and 100 mg/kg bid, respectively; these efficacies were similar to those of vancomycin at 4 and 20 mg/kg bid, respectively. The present findings indicate that coralmycin A has great potential as a new class of antibiotic for treating infections caused by multidrug-resistant Gram-positive bacteria.
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Affiliation(s)
- Ha-Young Choi
- Infectious Disease Research Center, Korea Research Institute of Bioscience and Biotechnology, Yusong, Daejeon 34141, Korea; (H.-Y.C.); (B.-M.K.); (T.Y.)
- Department of Bio-Molecular Science, KRIBB School of Bioscience, Korea University of Science and Technology (UST), Yusong, Daejeon 34141, Korea
| | - Bo-Min Kim
- Infectious Disease Research Center, Korea Research Institute of Bioscience and Biotechnology, Yusong, Daejeon 34141, Korea; (H.-Y.C.); (B.-M.K.); (T.Y.)
- Department of Bio-Molecular Science, KRIBB School of Bioscience, Korea University of Science and Technology (UST), Yusong, Daejeon 34141, Korea
| | - Young-Rok Kim
- School of Life Science, Handong Global University, Pohang 37554, Korea; (Y.-R.K.); (J.-H.K.)
| | - Taehui Yang
- Infectious Disease Research Center, Korea Research Institute of Bioscience and Biotechnology, Yusong, Daejeon 34141, Korea; (H.-Y.C.); (B.-M.K.); (T.Y.)
| | - Sunjoo Ahn
- Bio and Drug Discovery Division, Korea Research Institute of Chemical Technology, 141 Gajeong-ro, Yusong, Daejeon 34114, Korea;
| | - Dongeun Yong
- Department of Laboratory Medicine and Research Institute of Bacterial Resistance, Yonsei University College of Medicine, Seoul 03722, Korea;
| | - Jin-Hwan Kwak
- School of Life Science, Handong Global University, Pohang 37554, Korea; (Y.-R.K.); (J.-H.K.)
| | - Won-Gon Kim
- Infectious Disease Research Center, Korea Research Institute of Bioscience and Biotechnology, Yusong, Daejeon 34141, Korea; (H.-Y.C.); (B.-M.K.); (T.Y.)
- Department of Bio-Molecular Science, KRIBB School of Bioscience, Korea University of Science and Technology (UST), Yusong, Daejeon 34141, Korea
- Correspondence:
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3
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Yan H, Chen F. Recent Progress in Solid‐Phase Total Synthesis of Naturally Occurring Small Peptides. Adv Synth Catal 2022. [DOI: 10.1002/adsc.202200079] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Hong Yan
- Institute of Pharmaceutical Science and Technology College of Chemistry Fuzhou University Fuzhou 350108 People's Republic of China
| | - Fen‐Er Chen
- Institute of Pharmaceutical Science and Technology College of Chemistry Fuzhou University Fuzhou 350108 People's Republic of China
- Engineering Center of Catalysis and Synthesis for Chiral Molecules Department of Chemistry Fudan University 220 Handan Road Shanghai 200433 People's Republic of China
- Shanghai Engineering Research Center of Industrial Asymmetric Catalysis of Chiral Drugs Fudan University 220 Handan Road Shanghai 200433 People's Republic of China
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4
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Behroz I, Kleebauer L, Hommernick K, Seidel M, Grätz S, Mainz A, Weston JB, Süssmuth RD. Acetylenic Replacement of Albicidin's Methacrylamide Residue Circumvents Detrimental E/Z Photoisomerization and Preserves Antibacterial Activity. Chemistry 2021; 27:9077-9086. [PMID: 33769627 PMCID: PMC8362182 DOI: 10.1002/chem.202100523] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2021] [Indexed: 01/07/2023]
Abstract
The natural product albicidin is a highly potent inhibitor of bacterial DNA gyrase. Its outstanding activity, particularly against Gram-negative pathogens, qualifies it as a promising lead structure in the search for new antibacterial drugs. However, as we show here, the N-terminal cinnamoyl moiety of albicidin is susceptible to photochemical E/Z isomerization. Moreover, the newly formed Z isomer exhibits significantly reduced antibacterial activity, which hampers the development and biological evaluation of albicidin and potent derivatives thereof. Hence, we synthesized 13 different variants of albicidin in which the vulnerable para-coumaric acid moiety was replaced; this yielded photostable analogues. Biological activity assays revealed that diaryl alkyne analogues exhibited virtually undiminished antibacterial efficacy. This promising scaffold will therefore serve as a blueprint for the design of a potent albicidin-based drug.
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Affiliation(s)
- Iraj Behroz
- Institut für Organische ChemieTechnische Universität BerlinStraße des 17. Juni 12410623BerlinGermany
| | - Leonardo Kleebauer
- Institut für Organische ChemieTechnische Universität BerlinStraße des 17. Juni 12410623BerlinGermany
| | - Kay Hommernick
- Institut für Organische ChemieTechnische Universität BerlinStraße des 17. Juni 12410623BerlinGermany
| | - Maria Seidel
- Institut für Organische ChemieTechnische Universität BerlinStraße des 17. Juni 12410623BerlinGermany
| | - Stefan Grätz
- Institut für Organische ChemieTechnische Universität BerlinStraße des 17. Juni 12410623BerlinGermany
| | - Andi Mainz
- Institut für Organische ChemieTechnische Universität BerlinStraße des 17. Juni 12410623BerlinGermany
| | - John B. Weston
- Institut für Organische ChemieTechnische Universität BerlinStraße des 17. Juni 12410623BerlinGermany
| | - Roderich D. Süssmuth
- Institut für Organische ChemieTechnische Universität BerlinStraße des 17. Juni 12410623BerlinGermany
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5
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Fan X, Walther A. pH Feedback Lifecycles Programmed by Enzymatic Logic Gates Using Common Foods as Fuels. Angew Chem Int Ed Engl 2021; 60:11398-11405. [PMID: 33682231 PMCID: PMC8252529 DOI: 10.1002/anie.202017003] [Citation(s) in RCA: 37] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2020] [Revised: 02/22/2021] [Indexed: 12/12/2022]
Abstract
Artificial temporal signaling systems, which mimic living out-of-equilibrium conditions, have made large progress. However, systems programmed by enzymatic reaction networks in multicomponent and unknown environments, and using biocompatible components remain a challenge. Herein, we demonstrate an approach to program temporal pH signals by enzymatic logic gates. They are realized by an enzymatic disaccharide-to-monosaccharide-to-sugar acid reaction cascade catalyzed by two metabolic chains: invertase-glucose oxidase and β-galactosidase-glucose oxidase, respectively. Lifetimes of the transient pH signal can be programmed from less than 15 min to more than 1 day. We study enzymatic kinetics of the reaction cascades and reveal the underlying regulatory mechanisms. Operating with all-food grade chemicals and coupling to self-regulating hydrogel, our system is quite robust to work in a complicated medium with unknown components and in a biocompatible fashion.
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Affiliation(s)
- Xinlong Fan
- Institute for Macromolecular ChemistryUniversity of FreiburgStefan-Meier-Str. 3179104FreiburgGermany
| | - Andreas Walther
- Institute for Macromolecular ChemistryUniversity of FreiburgStefan-Meier-Str. 3179104FreiburgGermany
- ABMS LabDepartment of ChemistryUniversity of MainzDuesbergweg 10–1455128MainzGermany
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6
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Hawkins PME, Liu DY, Linington RG, Payne RJ. Solid-phase synthesis of coralmycin A/ epi-coralmycin A and desmethoxycoralmycin A. Org Biomol Chem 2021; 19:6291-6300. [PMID: 34212970 DOI: 10.1039/d1ob01062j] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The total synthesis of the natural product coralmycin A/epi-coralmycin A, as well as a desmethoxy analogue is described. Synthesis was achieved via a divergent, bidirectional solid-phase strategy, including a key on-resin O-acylation, O to N acyl shift, and O-alkylation protocol to incorporate the unusual 4-amino-2-hydroxy-3-isopropoxybenzoic acid motifs. The synthetic natural product was generated as a 1 : 1 mixture of epimers at the central β-methoxyasparagine residue and exhibited potent antibacterial activity against a panel of ten Gram-negative and seven Gram-positive organisms. The desmethoxy analogue possessed significantly more potent antimicrobial activity against this panel with minimal inhibitory concentrations (MICs) as low as 50 nM.
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Affiliation(s)
- Paige M E Hawkins
- School of Chemistry, The University of Sydney, Sydney, NSW 2006, Australia. and Australian Research Council Centre of Excellence for Innovations in Peptide and Protein Science, The University of Sydney, NSW 2006, Australia
| | - Dennis Y Liu
- Department of Chemistry, Simon Fraser University, Burnaby, BC V5A 1S6, Canada
| | - Roger G Linington
- Department of Chemistry, Simon Fraser University, Burnaby, BC V5A 1S6, Canada
| | - Richard J Payne
- School of Chemistry, The University of Sydney, Sydney, NSW 2006, Australia. and Australian Research Council Centre of Excellence for Innovations in Peptide and Protein Science, The University of Sydney, NSW 2006, Australia
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7
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Moreira R, Noden M, Taylor SD. Synthesis of Azido Acids and Their Application in the Preparation of Complex Peptides. SYNTHESIS-STUTTGART 2020. [DOI: 10.1055/s-0040-1707314] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
AbstractAzido acids are important synthons for the synthesis of complex peptides. As a protecting group, the azide moiety is atom-efficient, easy to install and can be reduced in the presence of many other protecting groups, making it ideal for the synthesis of branched and/or cyclic peptides. α-Azido acids are less bulky than urethane-protected counterparts and react more effectively in coupling reactions of difficult-to-form peptide and ester bonds. Azido acids can also be used to form azoles on complex intermediates. This review covers the synthesis of azido acids and their application to the total synthesis of complex peptide natural products.1 Introduction2 Synthesis of α-Azido Acids2.1 From α-Amino Acids or Esters2.2 Via α-Substitution2.3 Via Electrophilic Azidation2.4 Via Condensation of N-2-Azidoacetyl-4-Phenylthiazolidin- 2-Thi one Enolates with Aldehydes and Acetals2.5 Synthesis of α,β-Unsaturated α-Azido Acids and Esters3 Synthesis of β-Azido Acids3.1 Preparation of Azidoalanine and 3-Azido-2-aminobutanoic Acids3.2 General Approaches to Preparing β-Azido Acids Other Than Azi doalanine and AABA4 Azido Acids in Total Synthesis4.1 α-Azido Acids4.2 β-Azido Acids and Azido Acids Containing an Azide on the Side
Chain5 Conclusions
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8
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Elgaher WAM, Hamed MM, Baumann S, Herrmann J, Siebenbürger L, Krull J, Cirnski K, Kirschning A, Brönstrup M, Müller R, Hartmann RW. Cystobactamid 507: Concise Synthesis, Mode of Action, and Optimization toward More Potent Antibiotics. Chemistry 2020; 26:7219-7225. [PMID: 31984562 PMCID: PMC7317206 DOI: 10.1002/chem.202000117] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2020] [Indexed: 12/23/2022]
Abstract
Lack of new antibiotics and increasing antimicrobial resistance are among the main concerns of healthcare communities nowadays, and these concerns necessitate the search for novel antibacterial agents. Recently, we discovered the cystobactamids—a novel natural class of antibiotics with broad‐spectrum antibacterial activity. In this work, we describe 1) a concise total synthesis of cystobactamid 507, 2) the identification of the bioactive conformation using noncovalently bonded rigid analogues, and 3) the first structure–activity relationship (SAR) study for cystobactamid 507 leading to new analogues with high metabolic stability, superior topoisomerase IIA inhibition, antibacterial activity and, importantly, stability toward the resistant factor AlbD. Deeper insight into the mode of action revealed that the cystobactamids employ DNA minor‐groove binding as part of the drug–target interaction without showing significant intercalation. By designing a new analogue of cystobactamid 919‐2, we finally demonstrated that these findings could be further exploited to obtain more potent hexapeptides against Gram‐negative bacteria.
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Affiliation(s)
- Walid A M Elgaher
- Department of Drug Design and Optimization, Helmholtz Institute for Pharmaceutical Research Saarland, Saarland University, Campus E8.1, 66123, Saarbrücken, Germany
| | - Mostafa M Hamed
- Department of Drug Design and Optimization, Helmholtz Institute for Pharmaceutical Research Saarland, Saarland University, Campus E8.1, 66123, Saarbrücken, Germany
| | - Sascha Baumann
- Department of Microbial Natural Products, Helmholtz Institute for Pharmaceutical Research Saarland, Saarland University, Campus E8.1, 66123, Saarbrücken, Germany
| | - Jennifer Herrmann
- Department of Microbial Natural Products, Helmholtz Institute for Pharmaceutical Research Saarland, Saarland University, Campus E8.1, 66123, Saarbrücken, Germany
| | | | - Jana Krull
- Department of Chemical Biology, Helmholtz Centre for Infection Research, Inhoffenstrasse 7, 38124, Braunschweig, Germany
| | - Katarina Cirnski
- Department of Microbial Natural Products, Helmholtz Institute for Pharmaceutical Research Saarland, Saarland University, Campus E8.1, 66123, Saarbrücken, Germany
| | - Andreas Kirschning
- Institute of Organic Chemistry, Leibniz University of Hannover, Schneiderberg 1B, 30167, Hannover, Germany
| | - Mark Brönstrup
- Department of Chemical Biology, Helmholtz Centre for Infection Research, Inhoffenstrasse 7, 38124, Braunschweig, Germany
| | - Rolf Müller
- Department of Microbial Natural Products, Helmholtz Institute for Pharmaceutical Research Saarland, Saarland University, Campus E8.1, 66123, Saarbrücken, Germany
| | - Rolf W Hartmann
- Department of Drug Design and Optimization, Helmholtz Institute for Pharmaceutical Research Saarland, Saarland University, Campus E8.1, 66123, Saarbrücken, Germany
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9
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Planke T, Cirnski K, Herrmann J, Müller R, Kirschning A. Synthetic and Biological Studies on New Urea and Triazole Containing Cystobactamid Derivatives. Chemistry 2020; 26:4289-4296. [PMID: 31834653 PMCID: PMC7186842 DOI: 10.1002/chem.201904073] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2019] [Indexed: 12/02/2022]
Abstract
Cystobactamids belong to the group of arene-based oligoamides that effectively inhibit bacterial type IIa topoisomerases. Cystobactamid 861-2 is the most active member of these antibiotics. Most amide bonds present in the cystobactamids link benzoic acids with anilines and it was found that some of these amide bonds undergo chemical and enzymatic hydrolysis, especially the one linking ring C with ring D. This work reports on the chemical synthesis and biological evaluation of thirteen new cystobactamids that still contain the methoxyaspartate hinge. However, we exchanged selected amide bonds either by the urea or the triazole groups and modified ring A in the latter case. While hydrolytic stability could be improved with these structural substitutes, the high antibacterial potency of cystobactamid 861-2 could only be preserved in selected cases. This includes derivatives, in which the urea group is positioned between rings A and B and where the triazole is found between rings C and D.
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Affiliation(s)
- Therese Planke
- Institut für Organische Chemie und Biomolekulares Wirkstoffzentrum (BMWZ), Leibniz Universität Hannover, Schneiderberg 1B, 30167, Hannover, Germany
| | - Katarina Cirnski
- Abteilung Mikrobielle Naturstoffe, Helmholtz Institut für Pharmazeutische Forschung Saarland, Helmholtz Zentrum für Infektionsforschung und Universität des Saarlandes, Campus E8.1, 66123, Saarbrücken, Germany
- Deutsches Zentrum für Infektionsforschung (DZIF), Standort Hannover-Braunschweig, Inhoffenstraße 7, 38124, Braunschweig, Germany
| | - Jennifer Herrmann
- Abteilung Mikrobielle Naturstoffe, Helmholtz Institut für Pharmazeutische Forschung Saarland, Helmholtz Zentrum für Infektionsforschung und Universität des Saarlandes, Campus E8.1, 66123, Saarbrücken, Germany
- Deutsches Zentrum für Infektionsforschung (DZIF), Standort Hannover-Braunschweig, Inhoffenstraße 7, 38124, Braunschweig, Germany
| | - Rolf Müller
- Abteilung Mikrobielle Naturstoffe, Helmholtz Institut für Pharmazeutische Forschung Saarland, Helmholtz Zentrum für Infektionsforschung und Universität des Saarlandes, Campus E8.1, 66123, Saarbrücken, Germany
- Deutsches Zentrum für Infektionsforschung (DZIF), Standort Hannover-Braunschweig, Inhoffenstraße 7, 38124, Braunschweig, Germany
| | - Andreas Kirschning
- Institut für Organische Chemie und Biomolekulares Wirkstoffzentrum (BMWZ), Leibniz Universität Hannover, Schneiderberg 1B, 30167, Hannover, Germany
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10
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Goes A, Lapuhs P, Kuhn T, Schulz E, Richter R, Panter F, Dahlem C, Koch M, Garcia R, Kiemer AK, Müller R, Fuhrmann G. Myxobacteria-Derived Outer Membrane Vesicles: Potential Applicability Against Intracellular Infections. Cells 2020; 9:cells9010194. [PMID: 31940898 PMCID: PMC7017139 DOI: 10.3390/cells9010194] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2019] [Revised: 01/07/2020] [Accepted: 01/08/2020] [Indexed: 12/22/2022] Open
Abstract
In 2019, it was estimated that 2.5 million people die from lower tract respiratory infections annually. One of the main causes of these infections is Staphylococcus aureus, a bacterium that can invade and survive within mammalian cells. S. aureus intracellular infections are difficult to treat because several classes of antibiotics are unable to permeate through the cell wall and reach the pathogen. This condition increases the need for new therapeutic avenues, able to deliver antibiotics efficiently. In this work, we obtained outer membrane vesicles (OMVs) derived from the myxobacteria Cystobacter velatus strain Cbv34 and Cystobacter ferrugineus strain Cbfe23, that are naturally antimicrobial, to target intracellular infections, and investigated how they can affect the viability of epithelial and macrophage cell lines. We evaluated by cytometric bead array whether they induce the expression of proinflammatory cytokines in blood immune cells. Using confocal laser scanning microscopy and flow cytometry, we also investigated their interaction and uptake into mammalian cells. Finally, we studied the effect of OMVs on planktonic and intracellular S. aureus. We found that while Cbv34 OMVs were not cytotoxic to cells at any concentration tested, Cbfe23 OMVs affected the viability of macrophages, leading to a 50% decrease at a concentration of 125,000 OMVs/cell. We observed only little to moderate stimulation of release of TNF-alpha, IL-8, IL-6 and IL-1beta by both OMVs. Cbfe23 OMVs have better interaction with the cells than Cbv34 OMVs, being taken up faster by them, but both seem to remain mostly on the cell surface after 24 h of incubation. This, however, did not impair their bacteriostatic activity against intracellular S. aureus. In this study, we provide an important basis for implementing OMVs in the treatment of intracellular infections.
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Affiliation(s)
- Adriely Goes
- Helmholtz Centre for Infection Research (HZI), Biogenic Nanotherapeutics Group (BION), Helmholtz Institute for Pharmaceutical Research Saarland (HIPS), Campus E8.1, 66123 Saarbrücken, Germany; (A.G.); (P.L.); (T.K.); (E.S.)
- Department of Pharmacy, Saarland University, Campus Building E8.1, 66123 Saarbrücken, Germany; (R.R.); (R.M.)
| | - Philipp Lapuhs
- Helmholtz Centre for Infection Research (HZI), Biogenic Nanotherapeutics Group (BION), Helmholtz Institute for Pharmaceutical Research Saarland (HIPS), Campus E8.1, 66123 Saarbrücken, Germany; (A.G.); (P.L.); (T.K.); (E.S.)
- Department of Pharmacy, Saarland University, Campus Building E8.1, 66123 Saarbrücken, Germany; (R.R.); (R.M.)
| | - Thomas Kuhn
- Helmholtz Centre for Infection Research (HZI), Biogenic Nanotherapeutics Group (BION), Helmholtz Institute for Pharmaceutical Research Saarland (HIPS), Campus E8.1, 66123 Saarbrücken, Germany; (A.G.); (P.L.); (T.K.); (E.S.)
- Department of Pharmacy, Saarland University, Campus Building E8.1, 66123 Saarbrücken, Germany; (R.R.); (R.M.)
| | - Eilien Schulz
- Helmholtz Centre for Infection Research (HZI), Biogenic Nanotherapeutics Group (BION), Helmholtz Institute for Pharmaceutical Research Saarland (HIPS), Campus E8.1, 66123 Saarbrücken, Germany; (A.G.); (P.L.); (T.K.); (E.S.)
- Department of Pharmacy, Saarland University, Campus Building E8.1, 66123 Saarbrücken, Germany; (R.R.); (R.M.)
| | - Robert Richter
- Department of Pharmacy, Saarland University, Campus Building E8.1, 66123 Saarbrücken, Germany; (R.R.); (R.M.)
- Helmholtz Centre for Infection Research (HZI), Department of Drug Delivery (DDEL), Helmholtz Institute for Pharmaceutical Research Saarland (HIPS), Campus E8.1, 66123 Saarbrücken, Germany
| | - Fabian Panter
- Helmholtz Centre for Infection Research (HZI), Department of Microbial Natural Products (MINS), Helmholtz Institute for Pharmaceutical Research Saarland (HIPS), Campus E8.1, 66123 Saarbrücken, Germany; (F.P.); (R.G.)
| | - Charlotte Dahlem
- Department of Pharmacy, Pharmaceutical Biology, Saarland University, 66123 Saarbrücken, Germany; (C.D.); (A.K.K.)
| | - Marcus Koch
- INM-Leibniz Institute for New Materials, Campus D2 2, 66123 Saarbrücken, Germany;
| | - Ronald Garcia
- Helmholtz Centre for Infection Research (HZI), Department of Microbial Natural Products (MINS), Helmholtz Institute for Pharmaceutical Research Saarland (HIPS), Campus E8.1, 66123 Saarbrücken, Germany; (F.P.); (R.G.)
| | - Alexandra K. Kiemer
- Department of Pharmacy, Pharmaceutical Biology, Saarland University, 66123 Saarbrücken, Germany; (C.D.); (A.K.K.)
| | - Rolf Müller
- Department of Pharmacy, Saarland University, Campus Building E8.1, 66123 Saarbrücken, Germany; (R.R.); (R.M.)
- Helmholtz Centre for Infection Research (HZI), Department of Microbial Natural Products (MINS), Helmholtz Institute for Pharmaceutical Research Saarland (HIPS), Campus E8.1, 66123 Saarbrücken, Germany; (F.P.); (R.G.)
- German Center for Infection Research (DZIF), 38124 Braunschweig, Germany
| | - Gregor Fuhrmann
- Helmholtz Centre for Infection Research (HZI), Biogenic Nanotherapeutics Group (BION), Helmholtz Institute for Pharmaceutical Research Saarland (HIPS), Campus E8.1, 66123 Saarbrücken, Germany; (A.G.); (P.L.); (T.K.); (E.S.)
- Department of Pharmacy, Saarland University, Campus Building E8.1, 66123 Saarbrücken, Germany; (R.R.); (R.M.)
- Correspondence: ; Tel.: +49-68-198-806 (ext. 1500)
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11
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Testolin G, Cirnski K, Rox K, Prochnow H, Fetz V, Grandclaudon C, Mollner T, Baiyoumy A, Ritter A, Leitner C, Krull J, van den Heuvel J, Vassort A, Sordello S, Hamed MM, Elgaher WAM, Herrmann J, Hartmann RW, Müller R, Brönstrup M. Synthetic studies of cystobactamids as antibiotics and bacterial imaging carriers lead to compounds with high in vivo efficacy. Chem Sci 2019; 11:1316-1334. [PMID: 34123255 PMCID: PMC8148378 DOI: 10.1039/c9sc04769g] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
There is an alarming scarcity of novel chemical matter with bioactivity against multidrug-resistant Gram-negative bacterial pathogens. Cystobactamids, recently discovered natural products from myxobacteria, are an exception to this trend. Their unusual chemical structure, composed of oligomeric para-aminobenzoic acid moieties, is associated with a high antibiotic activity through the inhibition of gyrase. In this study, structural determinants of cystobactamid's antibacterial potency were defined at five positions, which were varied using three different synthetic routes to the cystobactamid scaffold. The potency against Acinetobacter baumannii could be increased ten-fold to an MIC (minimum inhibitory concentration) of 0.06 μg mL-1, and the previously identified spectrum gap of Klebsiella pneumoniae could be closed compared to the natural products (MIC of 0.5 μg mL-1). Proteolytic degradation of cystobactamids by the resistance factor AlbD was prevented by an amide-triazole replacement. Conjugation of cystobactamid's N-terminal tetrapeptide to a Bodipy moiety induced the selective localization of the fluorophore for bacterial imaging purposes. Finally, a first in vivo proof of concept was obtained in an E. coli infection mouse model, where derivative 22 led to the reduction of bacterial loads (cfu, colony-forming units) in muscle, lung and kidneys by five orders of magnitude compared to vehicle-treated mice. These findings qualify cystobactamids as highly promising lead structures against infections caused by Gram-positive and Gram-negative bacterial pathogens.
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Affiliation(s)
- Giambattista Testolin
- Department of Chemical Biology, Helmholtz Centre for Infection Research Inhoffenstrasse 7 38124 Braunschweig Germany
| | - Katarina Cirnski
- German Center for Infection Research (DZIF) Site Hannover-Braunschweig Germany.,Helmholtz Institute for Pharmaceutical Research Saarland Universitätscampus E8.1 66123 Saarbrücken Germany
| | - Katharina Rox
- Department of Chemical Biology, Helmholtz Centre for Infection Research Inhoffenstrasse 7 38124 Braunschweig Germany .,German Center for Infection Research (DZIF) Site Hannover-Braunschweig Germany
| | - Hans Prochnow
- Department of Chemical Biology, Helmholtz Centre for Infection Research Inhoffenstrasse 7 38124 Braunschweig Germany
| | - Verena Fetz
- Department of Chemical Biology, Helmholtz Centre for Infection Research Inhoffenstrasse 7 38124 Braunschweig Germany
| | - Charlotte Grandclaudon
- Department of Chemical Biology, Helmholtz Centre for Infection Research Inhoffenstrasse 7 38124 Braunschweig Germany .,German Center for Infection Research (DZIF) Site Hannover-Braunschweig Germany
| | - Tim Mollner
- Department of Chemical Biology, Helmholtz Centre for Infection Research Inhoffenstrasse 7 38124 Braunschweig Germany
| | - Alain Baiyoumy
- Department of Chemical Biology, Helmholtz Centre for Infection Research Inhoffenstrasse 7 38124 Braunschweig Germany
| | - Antje Ritter
- Department of Chemical Biology, Helmholtz Centre for Infection Research Inhoffenstrasse 7 38124 Braunschweig Germany
| | - Christian Leitner
- Department of Chemical Biology, Helmholtz Centre for Infection Research Inhoffenstrasse 7 38124 Braunschweig Germany .,German Center for Infection Research (DZIF) Site Hannover-Braunschweig Germany
| | - Jana Krull
- Department of Chemical Biology, Helmholtz Centre for Infection Research Inhoffenstrasse 7 38124 Braunschweig Germany
| | - Joop van den Heuvel
- Group Recombinant Protein Expression, Helmholtz Centre for Infection Research Inhoffenstrasse 7 38124 Braunschweig Germany
| | - Aurelie Vassort
- Evotec ID 1541 Avenue Marcel Merieux 69289 Marcy l'Etoile France
| | | | - Mostafa M Hamed
- Helmholtz Institute for Pharmaceutical Research Saarland Universitätscampus E8.1 66123 Saarbrücken Germany
| | - Walid A M Elgaher
- Helmholtz Institute for Pharmaceutical Research Saarland Universitätscampus E8.1 66123 Saarbrücken Germany
| | - Jennifer Herrmann
- German Center for Infection Research (DZIF) Site Hannover-Braunschweig Germany.,Helmholtz Institute for Pharmaceutical Research Saarland Universitätscampus E8.1 66123 Saarbrücken Germany
| | - Rolf W Hartmann
- Helmholtz Institute for Pharmaceutical Research Saarland Universitätscampus E8.1 66123 Saarbrücken Germany
| | - Rolf Müller
- German Center for Infection Research (DZIF) Site Hannover-Braunschweig Germany.,Helmholtz Institute for Pharmaceutical Research Saarland Universitätscampus E8.1 66123 Saarbrücken Germany
| | - Mark Brönstrup
- Department of Chemical Biology, Helmholtz Centre for Infection Research Inhoffenstrasse 7 38124 Braunschweig Germany .,German Center for Infection Research (DZIF) Site Hannover-Braunschweig Germany.,Center of Biomolecular Drug Research (BMWZ), Leibniz Universität 30167 Hannover Germany
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12
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Moeller M, Norris MD, Planke T, Cirnski K, Herrmann J, Müller R, Kirschning A. Scalable Syntheses of Methoxyaspartate and Preparation of the Antibiotic Cystobactamid 861-2 and Highly Potent Derivatives. Org Lett 2019; 21:8369-8372. [DOI: 10.1021/acs.orglett.9b03143] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Malte Moeller
- Institut für Organische Chemie und Biomolekulares Wirkstoffzentrum (BMWZ) der Leibniz Universität Hannover, Schneiderberg 1B, 30167 Hannover, Germany
| | - Matthew D. Norris
- Institut für Organische Chemie und Biomolekulares Wirkstoffzentrum (BMWZ) der Leibniz Universität Hannover, Schneiderberg 1B, 30167 Hannover, Germany
| | - Therese Planke
- Institut für Organische Chemie und Biomolekulares Wirkstoffzentrum (BMWZ) der Leibniz Universität Hannover, Schneiderberg 1B, 30167 Hannover, Germany
| | - Katarina Cirnski
- Abteilung Mikrobielle Naturstoffe, Helmholtz Institut für Pharmazeutische Forschung Saarland, Helmholtz Zentrum für Infektionsforschung und Universität des Saarlandes, Campus E8.1, 66123 Saarbrücken, Germany
| | - Jennifer Herrmann
- Abteilung Mikrobielle Naturstoffe, Helmholtz Institut für Pharmazeutische Forschung Saarland, Helmholtz Zentrum für Infektionsforschung und Universität des Saarlandes, Campus E8.1, 66123 Saarbrücken, Germany
| | - Rolf Müller
- Abteilung Mikrobielle Naturstoffe, Helmholtz Institut für Pharmazeutische Forschung Saarland, Helmholtz Zentrum für Infektionsforschung und Universität des Saarlandes, Campus E8.1, 66123 Saarbrücken, Germany
| | - Andreas Kirschning
- Institut für Organische Chemie und Biomolekulares Wirkstoffzentrum (BMWZ) der Leibniz Universität Hannover, Schneiderberg 1B, 30167 Hannover, Germany
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13
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Che H, Zhu J, Song S, Mason AF, Cao S, Pijpers IAB, Abdelmohsen LKEA, van Hest JCM. ATP-Mediated Transient Behavior of Stomatocyte Nanosystems. Angew Chem Int Ed Engl 2019; 58:13113-13118. [PMID: 31267638 PMCID: PMC7079195 DOI: 10.1002/anie.201906331] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2019] [Revised: 07/01/2019] [Indexed: 12/15/2022]
Abstract
In nature, dynamic processes are ubiquitous and often characterized by adaptive, transient behavior. Herein, we present the development of a transient bowl-shaped nanoreactor system, or stomatocyte, the properties of which are mediated by molecular interactions. In a stepwise fashion, we couple motility to a dynamic process, which is maintained by transient events; namely, binding and unbinding of adenosine triphosphate (ATP). The surface of the nanosystem is decorated with polylysine (PLL), and regulation is achieved by addition of ATP. The dynamic interaction between PLL and ATP leads to an increase in the hydrophobicity of the PLL-ATP complex and subsequently to a collapse of the polymer; this causes a narrowing of the opening of the stomatocytes. The presence of the apyrase, which hydrolyzes ATP, leads to a decrease of the ATP concentration, decomplexation of PLL, and reopening of the stomatocyte. The competition between ATP input and consumption gives rise to a transient state that is controlled by the out-of-equilibrium process.
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Affiliation(s)
- Hailong Che
- Eindhoven University of Technology, Institute for Complex Molecular Systems, P.O. Box 513 (STO 3.41), 5600MB, Eindhoven, The Netherlands
| | - Jianzhi Zhu
- Eindhoven University of Technology, Institute for Complex Molecular Systems, P.O. Box 513 (STO 3.41), 5600MB, Eindhoven, The Netherlands
| | - Shidong Song
- Eindhoven University of Technology, Institute for Complex Molecular Systems, P.O. Box 513 (STO 3.41), 5600MB, Eindhoven, The Netherlands
| | - Alexander F Mason
- Eindhoven University of Technology, Institute for Complex Molecular Systems, P.O. Box 513 (STO 3.41), 5600MB, Eindhoven, The Netherlands
| | - Shoupeng Cao
- Eindhoven University of Technology, Institute for Complex Molecular Systems, P.O. Box 513 (STO 3.41), 5600MB, Eindhoven, The Netherlands
| | - Imke A B Pijpers
- Eindhoven University of Technology, Institute for Complex Molecular Systems, P.O. Box 513 (STO 3.41), 5600MB, Eindhoven, The Netherlands
| | - Loai K E A Abdelmohsen
- Eindhoven University of Technology, Institute for Complex Molecular Systems, P.O. Box 513 (STO 3.41), 5600MB, Eindhoven, The Netherlands
| | - Jan C M van Hest
- Eindhoven University of Technology, Institute for Complex Molecular Systems, P.O. Box 513 (STO 3.41), 5600MB, Eindhoven, The Netherlands
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14
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Coralmycin Derivatives with Potent Anti-Gram Negative Activity Produced by the Myxobacteria Corallococcus coralloides M23. Molecules 2019; 24:molecules24071390. [PMID: 30970590 PMCID: PMC6479757 DOI: 10.3390/molecules24071390] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2019] [Revised: 04/06/2019] [Accepted: 04/08/2019] [Indexed: 11/30/2022] Open
Abstract
Seven new coralmycin derivatives, coralmycins C (1), D (2), E (3), F (4), G (5), H (6), and I (7), along with three known compounds, cystobactamids 891-2 (8), 905-2 (9), and 507 (10), were isolated from a large-scale culture of the myxobacteria Corallococcus coralloides M23. The structures of these compounds, including their relative stereochemistries, were elucidated by interpretation of their spectroscopic and CD data. The structure-activity relationships of their antibacterial and DNA gyrase inhibitory activities indicated that the para-nitrobenzoic acid unit is critical for the inhibition of DNA gyrase and bacterial growth, while the nitro moiety of the para-nitrobenzoic acid unit and the isopropyl chain at C-4 could be important for permeability into certain Gram-negative bacteria, including Pseudomonas aeruginosa and Klebsiella pneumoniae, and the β-methoxyasparagine moiety could affect cellular uptake into all tested bacteria. These results could facilitate the chemical optimization of coralmycins for the treatment of multidrug-resistant Gram-negative bacteria.
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15
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Planke T, Moreno M, Hüttel S, Fohrer J, Gille F, Norris MD, Siebke M, Wang L, Müller R, Kirschning A. Cystobactamids 920-1 and 920-2: Assignment of the Constitution and Relative Configuration by Total Synthesis. Org Lett 2019; 21:1359-1363. [DOI: 10.1021/acs.orglett.9b00058] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Therese Planke
- Institut für Organische Chemie und Biomolekulares Wirkstoffzentrum (BMWZ) der Leibniz Universität Hannover, Schneiderberg 1B, 30167 Hannover, Germany
| | - María Moreno
- Institut für Organische Chemie und Biomolekulares Wirkstoffzentrum (BMWZ) der Leibniz Universität Hannover, Schneiderberg 1B, 30167 Hannover, Germany
| | - Stephan Hüttel
- Abteilung Mikrobielle Naturstoffe, Helmholtz Institut für Pharmazeutische Forschung Saarland, Helmholtz Zentrum für Infektionsforschung und Universität des Saarlandes, Campus E8.1, 66123 Saarbrücken, Germany
| | - Jörg Fohrer
- Institut für Organische Chemie und Biomolekulares Wirkstoffzentrum (BMWZ) der Leibniz Universität Hannover, Schneiderberg 1B, 30167 Hannover, Germany
| | - Franziska Gille
- Institut für Organische Chemie und Biomolekulares Wirkstoffzentrum (BMWZ) der Leibniz Universität Hannover, Schneiderberg 1B, 30167 Hannover, Germany
| | - Matthew D. Norris
- Institut für Organische Chemie und Biomolekulares Wirkstoffzentrum (BMWZ) der Leibniz Universität Hannover, Schneiderberg 1B, 30167 Hannover, Germany
| | - Maik Siebke
- Institut für Organische Chemie und Biomolekulares Wirkstoffzentrum (BMWZ) der Leibniz Universität Hannover, Schneiderberg 1B, 30167 Hannover, Germany
| | - Liangliang Wang
- Institut für Organische Chemie und Biomolekulares Wirkstoffzentrum (BMWZ) der Leibniz Universität Hannover, Schneiderberg 1B, 30167 Hannover, Germany
| | - Rolf Müller
- Abteilung Mikrobielle Naturstoffe, Helmholtz Institut für Pharmazeutische Forschung Saarland, Helmholtz Zentrum für Infektionsforschung und Universität des Saarlandes, Campus E8.1, 66123 Saarbrücken, Germany
| | - Andreas Kirschning
- Institut für Organische Chemie und Biomolekulares Wirkstoffzentrum (BMWZ) der Leibniz Universität Hannover, Schneiderberg 1B, 30167 Hannover, Germany
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16
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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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17
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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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18
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19
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von Eckardstein L, Petras D, Dang T, Cociancich S, Sabri S, Grätz S, Kerwat D, Seidel M, Pesic A, Dorrestein PC, Royer M, Weston JB, Süssmuth RD. Total Synthesis and Biological Assessment of Novel Albicidins Discovered by Mass Spectrometric Networking. Chemistry 2017; 23:15316-15321. [DOI: 10.1002/chem.201704074] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2017] [Indexed: 11/11/2022]
Affiliation(s)
- Leonard von Eckardstein
- Institut für Chemie; Technische Unitersität Berlin; Strasse des 17. Juni 124 10623 Berlin Germany
| | - Daniel Petras
- Institut für Chemie; Technische Unitersität Berlin; Strasse des 17. Juni 124 10623 Berlin Germany
- Skaggs School of Pharmacy and Pharmaceutical Sciences; University of California, San Diego; 9500 Gilman Drive La Jolla CA 92093 USA
| | - Tam Dang
- Institut für Chemie; Technische Unitersität Berlin; Strasse des 17. Juni 124 10623 Berlin Germany
| | - Stéphane Cociancich
- CIRAD; UMR BGPI; 34398 Montpellier France
- BGPI; Univ. Montpellier, CIRAD, INRA; Montpellier SupAgro; 34398 Montpellier France
| | - Souhir Sabri
- CIRAD; UMR BGPI; 34398 Montpellier France
- BGPI; Univ. Montpellier, CIRAD, INRA; Montpellier SupAgro; 34398 Montpellier France
| | - Stefan Grätz
- Institut für Chemie; Technische Unitersität Berlin; Strasse des 17. Juni 124 10623 Berlin Germany
| | - Dennis Kerwat
- Institut für Chemie; Technische Unitersität Berlin; Strasse des 17. Juni 124 10623 Berlin Germany
| | - Maria Seidel
- Institut für Chemie; Technische Unitersität Berlin; Strasse des 17. Juni 124 10623 Berlin Germany
| | - Alexander Pesic
- Institut für Chemie; Technische Unitersität Berlin; Strasse des 17. Juni 124 10623 Berlin Germany
| | - Pieter C. Dorrestein
- Skaggs School of Pharmacy and Pharmaceutical Sciences; University of California, San Diego; 9500 Gilman Drive La Jolla CA 92093 USA
| | - Monique Royer
- CIRAD; UMR BGPI; 34398 Montpellier France
- BGPI; Univ. Montpellier, CIRAD, INRA; Montpellier SupAgro; 34398 Montpellier France
| | - John B. Weston
- Institut für Chemie; Technische Unitersität Berlin; Strasse des 17. Juni 124 10623 Berlin Germany
| | - Roderich D. Süssmuth
- Institut für Chemie; Technische Unitersität Berlin; Strasse des 17. Juni 124 10623 Berlin Germany
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