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Meier-Menches SM, Casini A. Design Strategies and Medicinal Applications of Metal-Peptidic Bioconjugates. Bioconjug Chem 2020; 31:1279-1288. [DOI: 10.1021/acs.bioconjchem.0c00152] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Samuel M. Meier-Menches
- Department of Analytical Chemistry, Faculty of Chemistry, University of Vienna, Waehringer Strasse 38, 1090 Vienna, Austria
| | - Angela Casini
- Chair of Medicinal and Bioinorganic Chemistry, Department of Chemistry, Technical University of Munich, Lichtenbergstrasse 4, 85748 Garching, Germany
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2
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Gahtory D, Murtola M, Smulders MMJ, Wennekes T, Zuilhof H, Strömberg R, Albada B. Facile functionalization of peptide nucleic acids (PNAs) for antisense and single nucleotide polymorphism detection. Org Biomol Chem 2018; 15:6710-6714. [PMID: 28766647 DOI: 10.1039/c7ob01592e] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In this report, we show how a convenient on-resin copper-click functionalization of azido-functionalized peptide nucleic acids (PNAs) allows various PNA-based detection strategies. Firstly, a thiazole orange (TO) clicked PNA probe facilitates a binary readout when combined with F/Q labeled DNA, giving increased sensitivity for antisense detection. Secondly, our TO-PNA conjugate also allows single nucleotide polymorphism detection. Since antisense detection is also possible in the absence of the TO label, our sensing platform based on azido-d-ornithine containing PNA even allows for additional and more advanced functionalization and sensing strategies.
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Affiliation(s)
- Digvijay Gahtory
- Laboratory of Organic Chemistry, Wageningen University and Research, Stippeneng 4, 6708 WE Wageningen, The Netherlands.
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3
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Albada B, Metzler-Nolte N. Highly Potent Antibacterial Organometallic Peptide Conjugates. Acc Chem Res 2017; 50:2510-2518. [PMID: 28953347 DOI: 10.1021/acs.accounts.7b00282] [Citation(s) in RCA: 70] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Resistance of pathogenic bacteria against currently marketed antibiotics is again increasing. To meet the societal need for effective cures, scientists are faced with the challenge of developing more potent but equally bacteria-specific drugs. Currently, most efforts are directed toward the modification of existing antibiotics, but ideally, compounds with a new mode of action are required. In this Account, we detail our findings in the area of novel metal-based antibiotics. Our strategy is based on the modification of simple antimicrobial peptides (AMPs) with organometallic agents, resulting in organometallic AMPs (OM-AMPs). Since bacteria have most likely never encountered these synthetically prepared unnatural organometallic agents, we anticipated that such agents could well become potentiating players in the antibiotics arena. Moreover, exploiting some of the particular properties of metal complexes should also help to elucidate the mode of action of small cationic AMPs, the molecular details of which have remained elusive despite intensive efforts. Using standard Fmoc/tBu-based solid-phase peptide synthesis approaches, we have prepared various organometallic-peptide conjugates with covalently linked group 8 and 9 metallocenes (ferrocene, ruthenocene, osmocene, and cobaltocenium). As a starting point we took the (RW)3 antibacterial hexapeptide lead structure. After modifying the peptide sequence (generations 1 and 2), changing the nature and position of the organometallic group (generation 3), and optimizing the amino acid chirality (generation 5), we identified several organometallic antibacterial peptides that are currently among the most active synthetic AMPs (synAMPs) that have ever been prepared. Through these rational and systematic optimizations, we were able to increase the antibacterial activity of a short non-organometallic synAMP 18-fold to submicromolar activity, rivaling the activity of vancomycin (often the drug of last resort) against methicillin-resistant Staphylococcus aureus (MRSA). Moreover, by making use of the unique physicochemical properties of ruthenocene, we were able to determine the mode of action of these short AMPs in unprecedented detail. We propose that the OM-AMP integrates into the bacterial membrane and changes its biophysical properties, which ultimately results in detachment of vital enzymes for respiration and cell-wall biosynthesis such as specifically cytochrome c and MurG from their locations in the membrane. Further explorations of these small OM-AMP derivatives that are summarized in this Account include lipid substitution, multivalent display of metalated di- or tripeptides on a trivalent scaffold with different linkers, and increasing the metal-to-peptide ratio such that every tryptophan in the (RW)3 scaffold is eventually replaced by a metalated lysine. While initial experiments with our OM-AMPs for systemic applications were largely disappointing, these OM-AMPs turned out to be potent antibiotics for topical applications. In this sense, two applications are described as examples in this Account, namely, bacterial decontamination of wastewater by reverse osmosis membranes (coated with our OM-AMPs by Cu-catalyzed azide-alkyne cycloaddition reaction) and synergistic activities of one of our synAMPs with colistin and tobramycin for the treatment of Pseudomonas aeruginosa infections that are associated with cystic fibrosis.
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Affiliation(s)
- Bauke Albada
- Laboratory of Organic Chemistry, Wageningen University & Research, Stippeneng 4, 6708 WE Wageningen, The Netherlands
| | - Nils Metzler-Nolte
- Inorganic
Chemistry I − Bioinorganic Chemistry, Ruhr University Bochum, Universitätsstrasse 150, D-44780 Bochum, Germany
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4
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Strack M, Billard É, Chatenet D, Lubell WD. Urotensin core mimics that modulate the biological activity of urotensin-II related peptide but not urotensin-II. Bioorg Med Chem Lett 2017. [DOI: 10.1016/j.bmcl.2017.05.088] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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5
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Albada B, Metzler-Nolte N. Organometallic–Peptide Bioconjugates: Synthetic Strategies and Medicinal Applications. Chem Rev 2016; 116:11797-11839. [DOI: 10.1021/acs.chemrev.6b00166] [Citation(s) in RCA: 149] [Impact Index Per Article: 18.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Bauke Albada
- Laboratory of Organic Chemistry, Wageningen University & Research, Stippeneng 4, 6708 WE Wageningen, The Netherlands
| | - Nils Metzler-Nolte
- Inorganic
Chemistry I − Bioinorganic Chemistry, Ruhr University Bochum, Universitätsstrasse 150, 44780-D Bochum, Germany
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6
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Strack M, Bedini A, Yip KT, Lombardi S, Siegmund D, Stoll R, Spampinato SM, Metzler-Nolte N. A Blocking Group Scan Using a Spherical Organometallic Complex Identifies an Unprecedented Binding Mode with Potent Activity In Vitro and In Vivo for the Opioid Peptide Dermorphin. Chemistry 2016; 22:14605-10. [PMID: 27553294 DOI: 10.1002/chem.201602432] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2016] [Indexed: 01/12/2023]
Abstract
Herein, the selective enforcement of one particular receptor-ligand interaction between specific domains of the μ-selective opioid peptide dermorphin and the μ opioid receptor is presented. For this, a blocking group scan is described which exploits the steric demand of a bis(quinolinylmethyl)amine rhenium(I) tricarbonyl complex conjugated to a number of different, strategically chosen positions of dermorphin. The prepared peptide conjugates lead to the discovery of two different binding modes: An expected N-terminal binding mode corresponds to the established view of opioid peptide binding, whereas an unexpected C-terminal binding mode is newly discovered. Surprisingly, both binding modes provide high affinity and agonistic activity at the μ opioid receptor in vitro. Furthermore, the unprecedented C-terminal binding mode shows potent dose-dependent antinociception in vivo. Finally, in silico docking studies support receptor activation by both dermorphin binding modes and suggest a biological relevance for dermorphin itself. Relevant ligand-protein interactions are similar for both binding modes, which is in line with previous protein mutation studies.
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Affiliation(s)
- Martin Strack
- Chair of Inorganic Chemistry I, Bioinorganic Chemistry, Ruhr University Bochum, Universitaetsstrasse 150, 44801, Bochum, Germany
| | - Andrea Bedini
- Department of Pharmacy and Biochemistry, University of Bologna, Via Irnerio 48, Bologna, Italy
| | - King T Yip
- Biomolecular NMR, Ruhr University Bochum, Universitaetsstrasse 150, 44801, Bochum, Germany
| | - Sara Lombardi
- Department of Pharmacy and Biochemistry, University of Bologna, Via Irnerio 48, Bologna, Italy
| | - Daniel Siegmund
- Chair of Inorganic Chemistry I, Bioinorganic Chemistry, Ruhr University Bochum, Universitaetsstrasse 150, 44801, Bochum, Germany
| | - Raphael Stoll
- Biomolecular NMR, Ruhr University Bochum, Universitaetsstrasse 150, 44801, Bochum, Germany
| | - Santi M Spampinato
- Department of Pharmacy and Biochemistry, University of Bologna, Via Irnerio 48, Bologna, Italy
| | - Nils Metzler-Nolte
- Chair of Inorganic Chemistry I, Bioinorganic Chemistry, Ruhr University Bochum, Universitaetsstrasse 150, 44801, Bochum, Germany.
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Bodner EJ, Kandiyote NS, Lutskiy MY, Albada HB, Metzler-Nolte N, Uhl W, Kasher R, Arnusch CJ. Attachment of antimicrobial peptides to reverse osmosis membranes by Cu(i)-catalyzed 1,3-dipolar alkyne–azide cycloaddition. RSC Adv 2016. [DOI: 10.1039/c6ra21930f] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023] Open
Abstract
Optimized polymer membrane surface modification with antimicrobial properties.
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Affiliation(s)
- Elias J. Bodner
- Department of Desalination and Water Treatment
- Zuckerberg Institute for Water Research
- The Jacob Blaustein Institutes for Desert Research
- Ben-Gurion University of the Negev
- Israel
| | - Nitzan Shtreimer Kandiyote
- Department of Desalination and Water Treatment
- Zuckerberg Institute for Water Research
- The Jacob Blaustein Institutes for Desert Research
- Ben-Gurion University of the Negev
- Israel
| | - Marina-Yamit Lutskiy
- Department of Desalination and Water Treatment
- Zuckerberg Institute for Water Research
- The Jacob Blaustein Institutes for Desert Research
- Ben-Gurion University of the Negev
- Israel
| | - H. Bauke Albada
- Inorganic Chemistry I
- Bioinorganic Chemistry
- Faculty of Chemistry and Biochemistry
- Ruhr-Universität Bochum
- 44801 Bochum
| | - Nils Metzler-Nolte
- Inorganic Chemistry I
- Bioinorganic Chemistry
- Faculty of Chemistry and Biochemistry
- Ruhr-Universität Bochum
- 44801 Bochum
| | - Wolfgang Uhl
- Norwegian Institute for Water Research (NIVA)
- 0349 Oslo
- Norway
- Chair of Water Supply Engineering
- Technische Universität Dresden
| | - Roni Kasher
- Department of Desalination and Water Treatment
- Zuckerberg Institute for Water Research
- The Jacob Blaustein Institutes for Desert Research
- Ben-Gurion University of the Negev
- Israel
| | - Christopher J. Arnusch
- Department of Desalination and Water Treatment
- Zuckerberg Institute for Water Research
- The Jacob Blaustein Institutes for Desert Research
- Ben-Gurion University of the Negev
- Israel
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8
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Soler M, Feliu L, Planas M, Ribas X, Costas M. Peptide-mediated vectorization of metal complexes: conjugation strategies and biomedical applications. Dalton Trans 2016; 45:12970-82. [DOI: 10.1039/c5dt04529k] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
The rich chemical and structural versatility of transition metal complexes provides numerous novel paths to be pursued in the design of molecules that exert particular chemical or physicochemical effects that could operate over specific biological targets.
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Affiliation(s)
- Marta Soler
- QBIS–CAT Research Group
- Institut de Química Computacional i Catàlisi (IQCC) and Departament de Química
- Universitat de Girona
- E-17071 Girona
- Spain
| | - Lidia Feliu
- LIPPSO
- Departament de Química
- Universitat de Girona
- E-17071 Girona
- Spain
| | - Marta Planas
- LIPPSO
- Departament de Química
- Universitat de Girona
- E-17071 Girona
- Spain
| | - Xavi Ribas
- QBIS–CAT Research Group
- Institut de Química Computacional i Catàlisi (IQCC) and Departament de Química
- Universitat de Girona
- E-17071 Girona
- Spain
| | - Miquel Costas
- QBIS–CAT Research Group
- Institut de Química Computacional i Catàlisi (IQCC) and Departament de Química
- Universitat de Girona
- E-17071 Girona
- Spain
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9
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Ibrahim H, de Frémont P, Braunstein P, Théry V, Nauton L, Cisnetti F, Gautier A. Water-Soluble Gold-N-Heterocyclic Carbene Complexes for the Catalytic Homogeneous Acid- and Silver-Free Hydration of Hydrophilic Alkynes. Adv Synth Catal 2015. [DOI: 10.1002/adsc.201500729] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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10
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Yoshida M, Sasahara KI, Doi T. Total synthesis of cyclodepsipeptide spiruchostatin A on silyl-linked polymer-support. Tetrahedron 2015. [DOI: 10.1016/j.tet.2015.07.064] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
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Hoffknecht BC, Albada HB, Sturm M, Prochnow P, Bandow JE, Metzler-Nolte N. Synthesis and antibacterial activity of trivalent ultrashort Arg-Trp-based antimicrobial peptides (AMPs). MEDCHEMCOMM 2015. [DOI: 10.1039/c4md00327f] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Multivalent display of identical ultrashort (only 2–3 amino acids long) antimicrobial peptides (AMPs) was used in order to create potential new antimicrobial agents.
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Affiliation(s)
- Barbara C. Hoffknecht
- Inorganic Chemistry I-Bioinorganic Chemistry
- Faculty of Chemistry and Biochemistry
- Ruhr University Bochum
- Universitätsstraße 150
- 44801 Bochum
| | - H. Bauke Albada
- Inorganic Chemistry I-Bioinorganic Chemistry
- Faculty of Chemistry and Biochemistry
- Ruhr University Bochum
- Universitätsstraße 150
- 44801 Bochum
| | - Marina Sturm
- Inorganic Chemistry I-Bioinorganic Chemistry
- Faculty of Chemistry and Biochemistry
- Ruhr University Bochum
- Universitätsstraße 150
- 44801 Bochum
| | - Pascal Prochnow
- Faculty of Biology
- Ruhr University Bochum
- Universitätsstraße 150
- 44801 Bochum
- Germany
| | - Julia E. Bandow
- Faculty of Biology
- Ruhr University Bochum
- Universitätsstraße 150
- 44801 Bochum
- Germany
| | - Nils Metzler-Nolte
- Inorganic Chemistry I-Bioinorganic Chemistry
- Faculty of Chemistry and Biochemistry
- Ruhr University Bochum
- Universitätsstraße 150
- 44801 Bochum
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12
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Strack M, Langklotz S, Bandow JE, Metzler-Nolte N, Bauke Albada H. Synthesis of bisarylethyne–peptide conjugates. Org Chem Front 2015. [DOI: 10.1039/c4qo00357h] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Convenient preparation of bisarylethyne–peptide conjugates, and a mild procedure for the H- or D-reduction of the bisarylethyne triple bond.
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Affiliation(s)
- Martin Strack
- Inorganic Chemistry I
- Bioinorganic Chemistry
- Faculty of Chemistry and Biochemistry
- Ruhr University Bochum
- Bochum
| | - Sina Langklotz
- Applied Microbiology
- Faculty of Biology and Biotechnology
- Ruhr University Bochum
- Bochum
- Germany
| | - Julia E. Bandow
- Applied Microbiology
- Faculty of Biology and Biotechnology
- Ruhr University Bochum
- Bochum
- Germany
| | - Nils Metzler-Nolte
- Inorganic Chemistry I
- Bioinorganic Chemistry
- Faculty of Chemistry and Biochemistry
- Ruhr University Bochum
- Bochum
| | - H. Bauke Albada
- Inorganic Chemistry I
- Bioinorganic Chemistry
- Faculty of Chemistry and Biochemistry
- Ruhr University Bochum
- Bochum
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13
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Albada HB, Prochnow P, Bobersky S, Langklotz S, Bandow JE, Metzler-Nolte N. Short antibacterial peptides with significantly reduced hemolytic activity can be identified by a systematic L-to-D exchange scan of their amino acid residues. ACS COMBINATORIAL SCIENCE 2013; 15:585-92. [PMID: 24147906 DOI: 10.1021/co400072q] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
High systemic toxicity of antimicrobial peptides (AMPs) limits their clinical application to the treatment of topical infections; in parenteral systemic application of AMPs the problem of hemolysis is one of the first to be tackled. We now show that the selectivity of lipidated short synthetic AMPs can be optimized substantially by reducing their hemolytic activity without affecting their activity against methicillin resistant Staphylococcus aureus (MRSA). In order to identify the optimized peptides, two sets of 32 diastereomeric H-(D)Arg-WRWRW-(L)Lys(C(O)CnH2n+1)-NH2 (n = 7 or 9) peptides were prepared using a split-split procedure to perform a systematic L-to-D exchange scan on the central WRWRW-fragment. Compared to the all-L C8-lipidated lead sequence, diastereomeric peptides had very similar antibacterial properties, but were over 30 times less hemolytic. We show that the observed hemolysis and antibacterial activity is affected by both differences in lipophilicity of the different peptides and specific combinations of L- and D-amino acid residues. This study identified several peptides that can be used as tools to precisely unravel the origin of hemolysis and thus help to design even further optimized nontoxic very active short antibacterial peptides.
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Affiliation(s)
- H. Bauke Albada
- Inorganic
Chemistry I—Bioinorganic Chemistry, Faculty of Chemistry and
Biochemistry, Ruhr University Bochum, 44801 Bochum, Germany
| | - Pascal Prochnow
- Biology
of Microorganisms, Ruhr University Bochum, 44801 Bochum, Germany
| | - Sandra Bobersky
- Inorganic
Chemistry I—Bioinorganic Chemistry, Faculty of Chemistry and
Biochemistry, Ruhr University Bochum, 44801 Bochum, Germany
| | - Sina Langklotz
- Biology
of Microorganisms, Ruhr University Bochum, 44801 Bochum, Germany
| | - Julia E. Bandow
- Biology
of Microorganisms, Ruhr University Bochum, 44801 Bochum, Germany
| | - Nils Metzler-Nolte
- Inorganic
Chemistry I—Bioinorganic Chemistry, Faculty of Chemistry and
Biochemistry, Ruhr University Bochum, 44801 Bochum, Germany
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