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Avcibas R, Vermul A, Gluhovic V, Boback N, Arroyo R, Kingma P, Isasi-Campillo M, Garcia-Ortega L, Griese M, Kuebler WM, Ochs M, Lauster D, Lopez-Rodriguez E. Multivalent, calcium-independent binding of surfactant protein A and D to sulfated glycosaminoglycans of the alveolar epithelial glycocalyx. Am J Physiol Lung Cell Mol Physiol 2024; 326:L524-L538. [PMID: 38375572 DOI: 10.1152/ajplung.00283.2023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Revised: 01/22/2024] [Accepted: 02/13/2024] [Indexed: 02/21/2024] Open
Abstract
Lung surfactant collectins, surfactant protein A (SP-A) and D (SP-D), are oligomeric C-type lectins involved in lung immunity. Through their carbohydrate recognition domain, they recognize carbohydrates at pathogen surfaces and initiate lung innate immune response. Here, we propose that they may also be able to bind to other carbohydrates present in typical cell surfaces, such as the alveolar epithelial glycocalyx. To test this hypothesis, we analyzed and quantified the binding affinity of SP-A and SP-D to different sugars and glycosaminoglycans (GAGs) by microscale thermophoresis (MST). In addition, by changing the calcium concentration, we aimed to characterize any consequences on the binding behavior. Our results show that both oligomeric proteins bind with high affinity (in nanomolar range) to GAGs, such as hyaluronan (HA), heparan sulfate (HS) and chondroitin sulfate (CS). Binding to HS and CS was calcium-independent, as it was not affected by changing calcium concentration in the buffer. Quantification of GAGs in bronchoalveolar lavage (BAL) fluid from animals deficient in either SP-A or SP-D showed changes in GAG composition, and electron micrographs showed differences in alveolar glycocalyx ultrastructure in vivo. Taken together, SP-A and SP-D bind to model sulfated glycosaminoglycans of the alveolar epithelial glycocalyx in a multivalent and calcium-independent way. These findings provide a potential mechanism for SP-A and SP-D as an integral part of the alveolar epithelial glycocalyx binding and interconnecting free GAGs, proteoglycans, and other glycans in glycoproteins, which may influence glycocalyx composition and structure.NEW & NOTEWORTHY SP-A and SP-D function has been related to innate immunity of the lung based on their binding to sugar residues at pathogen surfaces. However, their function in the healthy alveolus was considered as limited to interaction with surfactant lipids. Here, we demonstrated that these proteins bind to glycosaminoglycans present at typical cell surfaces like the alveolar epithelial glycocalyx. We propose a model where these proteins play an important role in interconnecting alveolar epithelial glycocalyx components.
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Affiliation(s)
- Rabia Avcibas
- Institute of Functional Anatomy, Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Anna Vermul
- Institute of Functional Anatomy, Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Vladimir Gluhovic
- Institute of Functional Anatomy, Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Nico Boback
- Core Facility Electron Microscopy, Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Raquel Arroyo
- Division of Neonatology and Pulmonary Biology, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, United States
| | - Paul Kingma
- Division of Neonatology and Pulmonary Biology, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, United States
| | - Miriam Isasi-Campillo
- Department of Biochemistry and Molecular Biology, Complutense University Madrid, Madrid, Spain
| | - Lucia Garcia-Ortega
- Department of Biochemistry and Molecular Biology, Complutense University Madrid, Madrid, Spain
| | - Matthias Griese
- Dr. von Hauner Children's Hospital, University Hospital, LMU Munich, German Center for Lung Research, Munich, Germany
| | - Wolfgang M Kuebler
- Institute of Physiology, Charité - Universitätsmedizin, Berlin, Germany
- German Center for Cardiovascular Research (DZHK), Berlin, Germany
- Keenan Research Centre, St. Michael's Hospital, University of Toronto, Toronto, Ontario, Canada
- Department of Surgery, University of Toronto, Toronto, Ontario, Canada
- Department of Physiology, University of Toronto, Toronto, Ontario, Canada
- German Center for Lung Research (DZL), Berlin, Germany
| | - Matthias Ochs
- Institute of Functional Anatomy, Charité - Universitätsmedizin Berlin, Berlin, Germany
- Department of Physiology, University of Toronto, Toronto, Ontario, Canada
- German Center for Lung Research (DZL), Berlin, Germany
- Core Facility Electron Microscopy, Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Daniel Lauster
- Institute of Pharmacy, Biopharmaceuticals, Freie Universität Berlin, Berlin, Germany
| | - Elena Lopez-Rodriguez
- Institute of Functional Anatomy, Charité - Universitätsmedizin Berlin, Berlin, Germany
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Tafech B, Rokhforouz MR, Leung J, Sung MM, Lin PJ, Sin DD, Lauster D, Block S, Quon BS, Tam Y, Cullis P, Feng JJ, Hedtrich S. Exploring Mechanisms of Lipid Nanoparticle-Mucus Interactions in Healthy and Cystic Fibrosis Conditions. Adv Healthc Mater 2024:e2304525. [PMID: 38563726 DOI: 10.1002/adhm.202304525] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2023] [Revised: 03/05/2024] [Indexed: 04/04/2024]
Abstract
Mucus forms the first defense line of human lungs, and as such hampers the efficient delivery of therapeutics to the underlying epithelium. This holds particularly true for genetic cargo such as CRISPR-based gene editing tools which cannot readily surmount the mucosal barrier. While lipid nanoparticles (LNPs) emerge as versatile non-viral gene delivery systems that can help overcome the delivery challenge, many knowledge gaps remain, especially for diseased states such as cystic fibrosis (CF). This study provides fundamental insights into Cas9 mRNA or ribonucleoprotein-loaded LNP-mucus interactions in healthy and diseased states by assessing the impact of the genetic cargo, mucin sialylation, mucin concentration, ionic strength, pH, and polyethylene glycol (PEG) concentration and nature on LNP diffusivity leveraging experimental approaches and Brownian dynamics (BD) simulations. Taken together, this study identifies key mucus and LNP characteristics that are critical to enabling a rational LNP design for transmucosal delivery.
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Affiliation(s)
- Belal Tafech
- Faculty of Pharmaceutical Sciences, University of British Columbia, Vancouver, BC, V6T 1Z3, Canada
| | - Mohammad-Reza Rokhforouz
- Department of Chemical and Biological Engineering, University of British Columbia, Vancouver, BC, V6T 1Z4, Canada
| | - Jerry Leung
- Department of Biochemistry and Molecular Biology, University of British Columbia, Vancouver, BC, V6T 1Z3, Canada
| | - Molly Mh Sung
- Acuitas Therapeutics, Vancouver, BC, V6T 1Z3, Canada
| | - Paulo Jc Lin
- Acuitas Therapeutics, Vancouver, BC, V6T 1Z3, Canada
| | - Don D Sin
- Centre for Heart Lung Innovation, University of British Columbia, Vancouver, BC, V6T 1Z3, Canada
| | - Daniel Lauster
- Institute of Pharmacy, Biopharmaceuticals, Freie Universität Berlin, 12169, Berlin, Germany
| | - Stephan Block
- Institute of Organic Chemistry, Freie Universität Berlin, 14195, Berlin, Germany
| | - Bradley S Quon
- Centre for Heart Lung Innovation, University of British Columbia, Vancouver, BC, V6T 1Z3, Canada
- Faculty of Medicine, University of British Columbia, Vancouver, BC, V6T 1Z3, Canada
- Adult Cystic Fibrosis Clinic, St Paul's Hospital, Vancouver, BC, V6Z 1Y6, Canada
| | - Ying Tam
- Acuitas Therapeutics, Vancouver, BC, V6T 1Z3, Canada
| | - Pieter Cullis
- Department of Biochemistry and Molecular Biology, University of British Columbia, Vancouver, BC, V6T 1Z3, Canada
| | - James J Feng
- Department of Chemical and Biological Engineering, University of British Columbia, Vancouver, BC, V6T 1Z4, Canada
- Department of Mathematics, University of British Columbia, Vancouver, BC, V6T 1Z2, Canada
| | - Sarah Hedtrich
- Faculty of Pharmaceutical Sciences, University of British Columbia, Vancouver, BC, V6T 1Z3, Canada
- Center of Biological Design, Berlin Institute of Health at Charité, Universitätsmedizin Berlin, Berlin, Germany
- Department of Infectious Diseases and Respiratory Medicine, Charité, Universitätsmedizin Berlin, Corporate member of Freie Universität Berlin and Humboldt Universität zu Berlin, Berlin, Germany
- Max-Delbrück Center for Molecular Medicine in the Helmholtz Association (MDC), 13125, Berlin, Germany
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3
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Gorenflos López JL, Dornan GL, Boback N, Neuenschwander M, Oder A, Kemnitz-Hassanin K, Schmieder P, Specker E, Asikoglu HC, Oberdanner C, Seyffarth C, von Kries JP, Lauster D, Hinderlich S, Hackenberger CPR. Small Molecules Targeting Human UDP-GlcNAc 2-Epimerase. Chembiochem 2023; 24:e202300555. [PMID: 37769151 DOI: 10.1002/cbic.202300555] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2023] [Revised: 09/28/2023] [Accepted: 09/28/2023] [Indexed: 09/30/2023]
Abstract
Uridine diphosphate N-acetylglucosamine 2-epimerase (GNE) is a key enzyme in the sialic acid biosynthesis pathway. Sialic acids are primarily terminal carbohydrates on glycans and play fundamental roles in health and disease. In search of effective GNE inhibitors not based on a carbohydrate scaffold, we performed a high-throughput screening campaign of 68,640 drug-like small molecules against recombinant GNE using a UDP detection assay. We validated nine of the primary actives with an orthogonal real-time NMR assay and verified their IC50 values in the low micromolar to nanomolar range manually. Stability and solubility studies revealed three compounds for further evaluation. Thermal shift assays, analytical size exclusion, and interferometric scattering microscopy demonstrated that the GNE inhibitors acted on the oligomeric state of the protein. Finally, hydrogen-deuterium exchange mass spectrometry (HDX-MS) revealed which sections of GNE were shifted upon the addition of the inhibitors. In summary, we have identified three small molecules as GNE inhibitors with high potency in vitro, which serve as promising candidates to modulate sialic acid biosynthesis in more complex systems.
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Affiliation(s)
- Jacob L Gorenflos López
- Leibniz-Forschungsinstitut für Molekulare Pharmakologie (FMP), Robert-Rössle-Strasse 10, 13125, Berlin, Germany
- Humboldt Universität zu Berlin, Department Chemie, Brook-Taylor-Strasse 2, 12489, Berlin, Germany
| | - Gillian L Dornan
- Leibniz-Forschungsinstitut für Molekulare Pharmakologie (FMP), Robert-Rössle-Strasse 10, 13125, Berlin, Germany
| | - Nico Boback
- Freie Universität Berlin, Institut für Pharmazie, Biopharmazeutika, Kelchstr. 31, 12169, Berlin, Germany
| | - Martin Neuenschwander
- Leibniz-Forschungsinstitut für Molekulare Pharmakologie (FMP), Robert-Rössle-Strasse 10, 13125, Berlin, Germany
| | - Andreas Oder
- Leibniz-Forschungsinstitut für Molekulare Pharmakologie (FMP), Robert-Rössle-Strasse 10, 13125, Berlin, Germany
| | - Kristin Kemnitz-Hassanin
- Leibniz-Forschungsinstitut für Molekulare Pharmakologie (FMP), Robert-Rössle-Strasse 10, 13125, Berlin, Germany
| | - Peter Schmieder
- Leibniz-Forschungsinstitut für Molekulare Pharmakologie (FMP), Robert-Rössle-Strasse 10, 13125, Berlin, Germany
| | - Edgar Specker
- Leibniz-Forschungsinstitut für Molekulare Pharmakologie (FMP), Robert-Rössle-Strasse 10, 13125, Berlin, Germany
| | - Hatice Ceyda Asikoglu
- Leibniz-Forschungsinstitut für Molekulare Pharmakologie (FMP), Robert-Rössle-Strasse 10, 13125, Berlin, Germany
- Berliner Hochschule für Technik (BHT), Seestrasse 64, 13347, Berlin, Germany
| | | | - Carola Seyffarth
- Leibniz-Forschungsinstitut für Molekulare Pharmakologie (FMP), Robert-Rössle-Strasse 10, 13125, Berlin, Germany
| | - Jens Peter von Kries
- Leibniz-Forschungsinstitut für Molekulare Pharmakologie (FMP), Robert-Rössle-Strasse 10, 13125, Berlin, Germany
| | - Daniel Lauster
- Freie Universität Berlin, Institut für Pharmazie, Biopharmazeutika, Kelchstr. 31, 12169, Berlin, Germany
| | - Stephan Hinderlich
- Berliner Hochschule für Technik (BHT), Seestrasse 64, 13347, Berlin, Germany
| | - Christian P R Hackenberger
- Leibniz-Forschungsinstitut für Molekulare Pharmakologie (FMP), Robert-Rössle-Strasse 10, 13125, Berlin, Germany
- Humboldt Universität zu Berlin, Department Chemie, Brook-Taylor-Strasse 2, 12489, Berlin, Germany
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4
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Schaupp L, Addante A, Völler M, Fentker K, Kuppe A, Bardua M, Duerr J, Piehler L, Röhmel J, Thee S, Kirchner M, Ziehm M, Lauster D, Haag R, Gradzielski M, Stahl M, Mertins P, Boutin S, Graeber SY, Mall MA. Longitudinal effects of elexacaftor/tezacaftor/ivacaftor on sputum viscoelastic properties, airway infection and inflammation in patients with cystic fibrosis. Eur Respir J 2023; 62:2202153. [PMID: 37414422 DOI: 10.1183/13993003.02153-2022] [Citation(s) in RCA: 31] [Impact Index Per Article: 31.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Accepted: 05/21/2023] [Indexed: 07/08/2023]
Abstract
BACKGROUND Recent studies demonstrated that the triple combination cystic fibrosis transmembrane conductance regulator (CFTR) modulator therapy elexacaftor/tezacaftor/ivacaftor (ETI) improves lung function and reduces pulmonary exacerbations in cystic fibrosis (CF) patients with at least one F508del allele. However, effects of ETI on downstream consequences of CFTR dysfunction, i.e. abnormal viscoelastic properties of airway mucus, chronic airway infection and inflammation have not been studied. The aim of this study was to determine the longitudinal effects of ETI on airway mucus rheology, microbiome and inflammation in CF patients with one or two F508del alleles aged ≥12 years throughout the first 12 months of therapy. METHODS In this prospective observational study, we assessed sputum rheology, the microbiome, inflammation markers and proteome before and 1, 3 and 12 months after initiation of ETI. RESULTS In total, 79 patients with CF and at least one F508del allele and 10 healthy controls were enrolled in this study. ETI improved the elastic modulus and viscous modulus of CF sputum at 3 and 12 months after initiation (all p<0.01). Furthermore, ETI decreased the relative abundance of Pseudomonas aeruginosa in CF sputum at 3 months and increased the microbiome α-diversity at all time points. In addition, ETI reduced interleukin-8 at 3 months (p<0.05) and free neutrophil elastase activity at all time points (all p<0.001), and shifted the CF sputum proteome towards healthy. CONCLUSIONS Our data demonstrate that restoration of CFTR function by ETI improves sputum viscoelastic properties, chronic airway infection and inflammation in CF patients with at least one F508del allele over the first 12 months of therapy; however, levels close to healthy were not reached.
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Affiliation(s)
- Laura Schaupp
- Department of Pediatric Respiratory Medicine, Immunology and Critical Care Medicine and Cystic Fibrosis Center, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany
- German Center for Lung Research (DZL), associated partner site, Berlin, Germany
- L. Schaupp, A. Addante, M. Völler and K. Fentker contributed equally as first authors
| | - Annalisa Addante
- Department of Pediatric Respiratory Medicine, Immunology and Critical Care Medicine and Cystic Fibrosis Center, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany
- German Center for Lung Research (DZL), associated partner site, Berlin, Germany
- L. Schaupp, A. Addante, M. Völler and K. Fentker contributed equally as first authors
| | - Mirjam Völler
- Department of Pediatric Respiratory Medicine, Immunology and Critical Care Medicine and Cystic Fibrosis Center, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany
- German Center for Lung Research (DZL), associated partner site, Berlin, Germany
- L. Schaupp, A. Addante, M. Völler and K. Fentker contributed equally as first authors
| | - Kerstin Fentker
- Proteomics Platform, Max-Delbrück-Center for Molecular Medicine, Berlin, Germany
- Institute for Chemistry and Biochemistry, Freie Universität Berlin, Berlin, Germany
- L. Schaupp, A. Addante, M. Völler and K. Fentker contributed equally as first authors
| | - Aditi Kuppe
- Department of Pediatric Respiratory Medicine, Immunology and Critical Care Medicine and Cystic Fibrosis Center, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany
- German Center for Lung Research (DZL), associated partner site, Berlin, Germany
| | - Markus Bardua
- Department of Pediatric Respiratory Medicine, Immunology and Critical Care Medicine and Cystic Fibrosis Center, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany
- German Center for Lung Research (DZL), associated partner site, Berlin, Germany
| | - Julia Duerr
- Department of Pediatric Respiratory Medicine, Immunology and Critical Care Medicine and Cystic Fibrosis Center, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany
- German Center for Lung Research (DZL), associated partner site, Berlin, Germany
| | - Linus Piehler
- Department of Pediatric Respiratory Medicine, Immunology and Critical Care Medicine and Cystic Fibrosis Center, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany
- German Center for Lung Research (DZL), associated partner site, Berlin, Germany
| | - Jobst Röhmel
- Department of Pediatric Respiratory Medicine, Immunology and Critical Care Medicine and Cystic Fibrosis Center, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany
- German Center for Lung Research (DZL), associated partner site, Berlin, Germany
- Berlin Institute of Health at Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Stephanie Thee
- Department of Pediatric Respiratory Medicine, Immunology and Critical Care Medicine and Cystic Fibrosis Center, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany
- German Center for Lung Research (DZL), associated partner site, Berlin, Germany
- Berlin Institute of Health at Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Marieluise Kirchner
- Proteomics Platform, Max-Delbrück-Center for Molecular Medicine, Berlin, Germany
- Berlin Institute of Health at Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Matthias Ziehm
- Proteomics Platform, Max-Delbrück-Center for Molecular Medicine, Berlin, Germany
- Berlin Institute of Health at Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Daniel Lauster
- Institute for Chemistry and Biochemistry, Freie Universität Berlin, Berlin, Germany
- Institute of Pharmacy, Biopharmaceuticals, Freie Universität Berlin, Berlin, Germany Berlin, Germany
| | - Rainer Haag
- Institute for Chemistry and Biochemistry, Freie Universität Berlin, Berlin, Germany
| | - Michael Gradzielski
- Institute of Pharmacy, Biopharmaceuticals, Freie Universität Berlin, Berlin, Germany Berlin, Germany
| | - Mirjam Stahl
- Department of Pediatric Respiratory Medicine, Immunology and Critical Care Medicine and Cystic Fibrosis Center, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany
- German Center for Lung Research (DZL), associated partner site, Berlin, Germany
- Berlin Institute of Health at Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Philipp Mertins
- Proteomics Platform, Max-Delbrück-Center for Molecular Medicine, Berlin, Germany
- Berlin Institute of Health at Charité - Universitätsmedizin Berlin, Berlin, Germany
- P. Mertins, S. Boutin, S.Y. Graeber and M.A. Mall contributed equally as senior authors
| | - Sébastien Boutin
- Stranski-Laboratorium für Physikalische und Theoretische Chemie, Institut für Chemie, Technische Universität Berlin, Berlin, Germany
- Department of Infectious Diseases, Medical Microbiology and Hygiene, University of Heidelberg, Heidelberg, Germany
- Department of Infectious Diseases and Microbiology, University Hospital Schleswig-Holstein/Campus, Lübeck, Germany
- P. Mertins, S. Boutin, S.Y. Graeber and M.A. Mall contributed equally as senior authors
| | - Simon Y Graeber
- Department of Pediatric Respiratory Medicine, Immunology and Critical Care Medicine and Cystic Fibrosis Center, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany
- German Center for Lung Research (DZL), associated partner site, Berlin, Germany
- Berlin Institute of Health at Charité - Universitätsmedizin Berlin, Berlin, Germany
- P. Mertins, S. Boutin, S.Y. Graeber and M.A. Mall contributed equally as senior authors
| | - Marcus A Mall
- Department of Pediatric Respiratory Medicine, Immunology and Critical Care Medicine and Cystic Fibrosis Center, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany
- German Center for Lung Research (DZL), associated partner site, Berlin, Germany
- Berlin Institute of Health at Charité - Universitätsmedizin Berlin, Berlin, Germany
- P. Mertins, S. Boutin, S.Y. Graeber and M.A. Mall contributed equally as senior authors
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5
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Lauster D, Osterrieder K, Haag R, Ballauff M, Herrmann A. Respiratory viruses interacting with cells: the importance of electrostatics. Front Microbiol 2023; 14:1169547. [PMID: 37440888 PMCID: PMC10333706 DOI: 10.3389/fmicb.2023.1169547] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2023] [Accepted: 06/08/2023] [Indexed: 07/15/2023] Open
Abstract
The COVID-19 pandemic has rekindled interest in the molecular mechanisms involved in the early steps of infection of cells by viruses. Compared to SARS-CoV-1 which only caused a relatively small albeit deadly outbreak, SARS-CoV-2 has led to fulminant spread and a full-scale pandemic characterized by efficient virus transmission worldwide within a very short time. Moreover, the mutations the virus acquired over the many months of virus transmission, particularly those seen in the Omicron variant, have turned out to result in an even more transmissible virus. Here, we focus on the early events of virus infection of cells. We review evidence that the first decisive step in this process is the electrostatic interaction of the spike protein with heparan sulfate chains present on the surface of target cells: Patches of cationic amino acids located on the surface of the spike protein can interact intimately with the negatively charged heparan sulfate chains, which results in the binding of the virion to the cell surface. In a second step, the specific interaction of the receptor binding domain (RBD) within the spike with the angiotensin-converting enzyme 2 (ACE2) receptor leads to the uptake of bound virions into the cell. We show that these events can be expressed as a semi-quantitative model by calculating the surface potential of different spike proteins using the Adaptive Poison-Boltzmann-Solver (APBS). This software allows visualization of the positive surface potential caused by the cationic patches, which increased markedly from the original Wuhan strain of SARS-CoV-2 to the Omicron variant. The surface potential thus enhanced leads to a much stronger binding of the Omicron variant as compared to the original wild-type virus. At the same time, data taken from the literature demonstrate that the interaction of the RBD of the spike protein with the ACE2 receptor remains constant within the limits of error. Finally, we briefly digress to other viruses and show the usefulness of these electrostatic processes and calculations for cell-virus interactions more generally.
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Affiliation(s)
- Daniel Lauster
- Institut für Pharmazie, Biopharmazeutika, Freie Universität Berlin, Berlin, Germany
| | | | - Rainer Haag
- Institut für Chemie und Biochemie, SupraFAB, Freie Universität Berlin, Berlin, Germany
| | - Matthias Ballauff
- Institut für Chemie und Biochemie, SupraFAB, Freie Universität Berlin, Berlin, Germany
| | - Andreas Herrmann
- Institut für Chemie und Biochemie, SupraFAB, Freie Universität Berlin, Berlin, Germany
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6
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Page TM, Nie C, Neander L, Povolotsky TL, Sahoo AK, Nickl P, Adler JM, Bawadkji O, Radnik J, Achazi K, Ludwig K, Lauster D, Netz RR, Trimpert J, Kaufer B, Haag R, Donskyi IS. Functionalized Fullerene for Inhibition of SARS-CoV-2 Variants. Small 2023; 19:e2206154. [PMID: 36651127 DOI: 10.1002/smll.202206154] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/07/2022] [Revised: 12/25/2022] [Indexed: 06/17/2023]
Abstract
As virus outbreaks continue to pose a challenge, a nonspecific viral inhibitor can provide significant benefits, especially against respiratory viruses. Polyglycerol sulfates recently emerge as promising agents that mediate interactions between cells and viruses through electrostatics, leading to virus inhibition. Similarly, hydrophobic C60 fullerene can prevent virus infection via interactions with hydrophobic cavities of surface proteins. Here, two strategies are combined to inhibit infection of SARS-CoV-2 variants in vitro. Effective inhibitory concentrations in the millimolar range highlight the significance of bare fullerene's hydrophobic moiety and electrostatic interactions of polysulfates with surface proteins of SARS-CoV-2. Furthermore, microscale thermophoresis measurements support that fullerene linear polyglycerol sulfates interact with the SARS-CoV-2 virus via its spike protein, and highlight importance of electrostatic interactions within it. All-atom molecular dynamics simulations reveal that the fullerene binding site is situated close to the receptor binding domain, within 4 nm of polyglycerol sulfate binding sites, feasibly allowing both portions of the material to interact simultaneously.
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Affiliation(s)
- Taylor M Page
- Institut für Chemie und Biochemie, Freie Universität Berlin, Takustr. 3, 14195, Berlin, Germany
| | - Chuanxiong Nie
- Institut für Chemie und Biochemie, Freie Universität Berlin, Takustr. 3, 14195, Berlin, Germany
| | - Lenard Neander
- Institut für Chemie und Biochemie, Freie Universität Berlin, Takustr. 3, 14195, Berlin, Germany
- Physics Department, Freie Universität Berlin, Arnimallee 14, 14195, Berlin, Germany
| | - Tatyana L Povolotsky
- Institut für Chemie und Biochemie, Freie Universität Berlin, Takustr. 3, 14195, Berlin, Germany
| | - Anil Kumar Sahoo
- Physics Department, Freie Universität Berlin, Arnimallee 14, 14195, Berlin, Germany
- Max Planck Institute of Colloids and Interfaces, Am Mühlenberg 1, 14476, Potsdam, Germany
| | - Philip Nickl
- Institut für Chemie und Biochemie, Freie Universität Berlin, Takustr. 3, 14195, Berlin, Germany
- BAM - Federal Institute for Material Science and Testing, Division of Surface Analysis and Interfacial Chemistry, Unter den Eichen 44-46, 12205, Berlin, Germany
| | - Julia M Adler
- Institut für Virologie, Freie Universität Berlin, Robert-von-Ostertag-Straße 7, 14163, Berlin, Germany
- Tiermedizinischen Zentrum für Resistenzforschung (TZR), Freie Universität Berlin, 14163, Berlin, Germany
| | - Obida Bawadkji
- Institut für Chemie und Biochemie, Freie Universität Berlin, Takustr. 3, 14195, Berlin, Germany
| | - Jörg Radnik
- BAM - Federal Institute for Material Science and Testing, Division of Surface Analysis and Interfacial Chemistry, Unter den Eichen 44-46, 12205, Berlin, Germany
| | - Katharina Achazi
- Institut für Chemie und Biochemie, Freie Universität Berlin, Takustr. 3, 14195, Berlin, Germany
| | - Kai Ludwig
- Forschungszentrum für Elektronenmikroskopie and Core Facility BioSupraMol, Freie Universität Berlin, Fabeckstraße 36A, 14195, Berlin, Germany
| | - Daniel Lauster
- Institut für Chemie und Biochemie, Freie Universität Berlin, Takustr. 3, 14195, Berlin, Germany
| | - Roland R Netz
- Physics Department, Freie Universität Berlin, Arnimallee 14, 14195, Berlin, Germany
| | - Jakob Trimpert
- Institut für Virologie, Freie Universität Berlin, Robert-von-Ostertag-Straße 7, 14163, Berlin, Germany
- Tiermedizinischen Zentrum für Resistenzforschung (TZR), Freie Universität Berlin, 14163, Berlin, Germany
| | - Benedikt Kaufer
- Institut für Virologie, Freie Universität Berlin, Robert-von-Ostertag-Straße 7, 14163, Berlin, Germany
- Tiermedizinischen Zentrum für Resistenzforschung (TZR), Freie Universität Berlin, 14163, Berlin, Germany
| | - Rainer Haag
- Institut für Chemie und Biochemie, Freie Universität Berlin, Takustr. 3, 14195, Berlin, Germany
| | - Ievgen S Donskyi
- Institut für Chemie und Biochemie, Freie Universität Berlin, Takustr. 3, 14195, Berlin, Germany
- BAM - Federal Institute for Material Science and Testing, Division of Surface Analysis and Interfacial Chemistry, Unter den Eichen 44-46, 12205, Berlin, Germany
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7
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Völler M, Addante A, Rulff H, von Lospichl B, Gräber SY, Duerr J, Lauster D, Haag R, Gradzielski M, Mall MA. An optimized protocol for assessment of sputum macrorheology in health and muco-obstructive lung disease. Front Physiol 2022; 13:912049. [PMID: 35991170 PMCID: PMC9388721 DOI: 10.3389/fphys.2022.912049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2022] [Accepted: 06/29/2022] [Indexed: 11/30/2022] Open
Abstract
Background: Airway mucus provides important protective functions in health and abnormal viscoelasticity is a hallmark of muco-obstructive lung diseases such as cystic fibrosis (CF). However, previous studies of sputum macrorheology from healthy individuals and patients with CF using different experimental protocols yielded in part discrepant results and data on a systematic assessment across measurement settings and conditions remain limited. Objectives: The aim of this study was to develop an optimized and reliable protocol for standardized macrorheological measurements of airway mucus model systems and native human sputum from healthy individuals and patients with muco-obstructive lung disease. Methods: Oscillatory rheological shear measurements were performed using bovine submaxillary mucin (BSM) at different concentrations (2% and 10% solids) and sputum samples from healthy controls (n = 10) and patients with CF (n = 10). Viscoelastic properties were determined by amplitude and frequency sweeps at 25°C and 37°C with or without solvent trap using a cone-plate geometry. Results: Under saturated atmosphere, we did not observe any temperature-dependent differences in 2% and 10% BSM macrorheology, whereas in the absence of evaporation control 10% BSM demonstrated a significantly higher viscoelasticity at 37°C. Similarly, during the measurements without evaporation control at 37°C we observed a substantial increase in the storage modulus G′ and the loss modulus G″ of the highly viscoelastic CF sputum but not in the healthy sputum. Conclusion: Our data show systematically higher viscoelasticity of CF compared to healthy sputum at 25°C and 37°C. For measurements at the higher temperature using a solvent trap to prevent evaporation is essential for macrorheological analysis of mucus model systems and native human sputum. Another interesting finding is that the viscoelastic properties are not much sensitive to the applied experimental deformation and yield robust results despite their delicate consistency. The optimized protocol resulting from this work will facilitate standardized quantitative assessment of abnormalities in viscoelastic properties of airway mucus and response to muco-active therapies in patients with CF and other muco-obstructive lung diseases.
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Affiliation(s)
- Mirjam Völler
- Department of Pediatric Respiratory Medicine, Immunology and Critical Care Medicine, Charité—Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany
- German Centre for Lung Research (DZL), Associated Partner Site, Berlin, Germany
| | - Annalisa Addante
- Department of Pediatric Respiratory Medicine, Immunology and Critical Care Medicine, Charité—Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany
- German Centre for Lung Research (DZL), Associated Partner Site, Berlin, Germany
| | - Hanna Rulff
- Institute of Chemistry, Technische Universität Berlin, Berlin, Germany
| | | | - Simon Y. Gräber
- Department of Pediatric Respiratory Medicine, Immunology and Critical Care Medicine, Charité—Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany
- German Centre for Lung Research (DZL), Associated Partner Site, Berlin, Germany
- Berlin Institute of Health at Charité—Universitätsmedizin Berlin, Berlin, Germany
| | - Julia Duerr
- Department of Pediatric Respiratory Medicine, Immunology and Critical Care Medicine, Charité—Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany
- German Centre for Lung Research (DZL), Associated Partner Site, Berlin, Germany
| | - Daniel Lauster
- Institute of Chemistry and Biochemistry, Freie Universität Berlin, Berlin, Germany
| | - Rainer Haag
- Institute of Chemistry and Biochemistry, Freie Universität Berlin, Berlin, Germany
| | - Michael Gradzielski
- Institute of Chemistry, Technische Universität Berlin, Berlin, Germany
- *Correspondence: Michael Gradzielski, ; Marcus A. Mall,
| | - Marcus A. Mall
- Department of Pediatric Respiratory Medicine, Immunology and Critical Care Medicine, Charité—Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany
- German Centre for Lung Research (DZL), Associated Partner Site, Berlin, Germany
- Berlin Institute of Health at Charité—Universitätsmedizin Berlin, Berlin, Germany
- *Correspondence: Michael Gradzielski, ; Marcus A. Mall,
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8
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Adam L, Müller E, Ludwig K, Klenk S, Lauster D, Liese S, Herrmann A, Hackenberger CPR. Design and Functional Analysis of Heterobifunctional Multivalent Phage Capsid Inhibitors Blocking the Entry of Influenza Virus. Bioconjug Chem 2022; 33:1269-1278. [PMID: 35759354 PMCID: PMC9305970 DOI: 10.1021/acs.bioconjchem.2c00166] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Abstract
![]()
Multiple conjugation
of virus-binding ligands to multivalent carriers
is a prominent strategy to construct highly affine virus binders for
the inhibition of viral entry into host cells. In a previous study,
we introduced rationally designed sialic acid conjugates of bacteriophages
(Qβ) that match the triangular binding site geometry on hemagglutinin
spike proteins of influenza A virions, resulting in effective infection
inhibition in vitro and in vivo.
In this work, we demonstrate that even partially sialylated Qβ
conjugates retain the inhibitory effect despite reduced activity.
These observations not only support the importance of trivalent binding
events in preserving high affinity, as supported by computational
modeling, but also allow us to construct heterobifunctional modalities.
Capsids carrying two different sialic acid ligand–linker structures
showed higher viral inhibition than their monofunctional counterparts.
Furthermore, capsids carrying a fluorescent dye in addition to sialic
acid ligands were used to track their interaction with cells. These
findings support exploring broader applications as multivalent inhibitors
in the future.
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Affiliation(s)
- Lutz Adam
- Leibniz-Forschungsinstitut für Molekulare Pharmakologie (FMP), Robert-Rössle-Straße 10, 13125 Berlin, Germany.,Institut für Chemie, Humboldt-Universität zu Berlin, Brook-Taylor-Street 2, 12489 Berlin, Germany
| | - Eva Müller
- Institut für translationale HIV Forschung, Universitätsklinikum Essen, Virchowstree 171, 45147 Essen, Germany
| | - Kai Ludwig
- Forschungszentrum für Elektronenmikroskopie und Gerätezentrum BioSupraMol, Institut für Chemie und Biochemie, Freie Universität Berlin, Berlin 14195, Germany
| | - Simon Klenk
- Leibniz-Forschungsinstitut für Molekulare Pharmakologie (FMP), Robert-Rössle-Straße 10, 13125 Berlin, Germany.,Institut für Chemie, Humboldt-Universität zu Berlin, Brook-Taylor-Street 2, 12489 Berlin, Germany
| | - Daniel Lauster
- Institut für Chemie und Biochemie, Freie Universität Berlin, Arnimallee 22, 14195 Berlin, Germany
| | - Susanne Liese
- Max-Planck Institute for the Physics of Complex Systems, Nöthnitzer Street 38, Dresden 01187, Germany.,Institut für Physik, Universität Augsburg, Augsburg 86159, Germany
| | - Andreas Herrmann
- Institut für Chemie und Biochemie, Freie Universität Berlin, Arnimallee 22, 14195 Berlin, Germany
| | - Christian P R Hackenberger
- Leibniz-Forschungsinstitut für Molekulare Pharmakologie (FMP), Robert-Rössle-Straße 10, 13125 Berlin, Germany.,Institut für Chemie, Humboldt-Universität zu Berlin, Brook-Taylor-Street 2, 12489 Berlin, Germany
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9
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Engelhardt PM, Rueda SF, Drexelius M, Neudörfl JM, Lauster D, Hackenberger CPR, Kühne R, Neundorf I, Schmalz HG. Synthetic α-Helical Peptides as Potential Inhibitors of the ACE2 SARS-CoV-2 Interaction. Chembiochem 2022; 23:e202200372. [PMID: 35785462 PMCID: PMC9350387 DOI: 10.1002/cbic.202200372] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Revised: 07/04/2022] [Indexed: 11/11/2022]
Abstract
During viral cell entry, the spike protein of SARS‐CoV‐2 binds to the α1‐helix motif of human angiotensin‐converting enzyme 2 (ACE2). Thus, alpha‐helical peptides mimicking this motif may serve as inhibitors of viral cell entry. For this purpose, we employed the rigidified diproline‐derived module ProM‐5 to induce α‐helicity in short peptide sequences inspired by the ACE2 α1‐helix. Starting with Ac‐QAKTFLDKFNHEAEDLFYQ‐NH2 as a relevant section of α1, a series of peptides, N‐capped with either Ac‐βHAsp‐[ProM‐5] or Ac‐βHAsp‐PP, were prepared and their α‐helicities were investigated. While ProM‐5 clearly showed a pronounced effect, an even increased degree of helicity (up to 63 %) was observed in sequences in which non‐binding amino acids were replaced by alanine. The binding affinities of the peptides towards the spike protein, as determined by means of microscale thermophoresis (MST), revealed only a subtle influence of the α‐helical content and, noteworthy, led to the identification of an Ac‐βHAsp‐PP‐capped peptide displaying a very strong binding affinity (KD=62 nM).
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Affiliation(s)
| | - Sebastián Florez Rueda
- FMP: Leibniz-Forschungsinstitut fur Molekulare Pharmakologie im Forschungsverbund Berlin eV, chemical biology, GERMANY
| | - Marco Drexelius
- University of Cologne: Universitat zu Koln, Chemistry, GERMANY
| | | | - Daniel Lauster
- Freie Universitat Berlin Fachbereich Biologie Chemie Pharmazie, biochemistry and chemistry, GERMANY
| | - Christian P R Hackenberger
- FMP: Leibniz-Forschungsinstitut fur Molekulare Pharmakologie im Forschungsverbund Berlin eV, chemical biology, GERMANY
| | - Ronald Kühne
- FMP: Leibniz-Forschungsinstitut fur Molekulare Pharmakologie im Forschungsverbund Berlin eV, drug discovery, GERMANY
| | - Ines Neundorf
- University of Cologne: Universitat zu Koln, chemistry and biochemistry, GERMANY
| | - Hans-Günther Schmalz
- Universitat zu Koln, Department für Chemie, Greinstrasse 4, 50939, Köln, GERMANY
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10
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Sarto C, Florez-Rueda S, Arrar M, Hackenberger CPR, Lauster D, Di Lella S. Atomistic insight into the essential binding event of ACE2-derived peptides to the SARS-CoV-2 spike protein. Biol Chem 2022; 403:615-624. [PMID: 35357791 DOI: 10.1515/hsz-2021-0426] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2021] [Accepted: 02/21/2022] [Indexed: 01/13/2023]
Abstract
The pathogenic agent of the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) enters into human cells through the interaction between the receptor binding domain (RBD) of its spike glycoprotein and the angiotensin-converting enzyme 2 (ACE2) receptor. Efforts have been made towards finding antivirals that block this interaction, therefore preventing infection. Here, we determined the binding affinity of ACE2-derived peptides to the RBD of SARS-CoV-2 experimentally and performed MD simulations in order to understand key characteristics of their interaction. One of the peptides, p6, binds to the RBD of SARS-CoV-2 with nM affinity. Although the ACE2-derived peptides retain conformational flexibility when bound to SARS-CoV-2 RBD, we identified residues T27 and K353 as critical anchors mediating the interaction. New ACE2-derived peptides were developed based on the p6-RBD interface analysis and expecting the native conformation of the ACE2 to be maintained. Furthermore, we found a correlation between the helicity in trifluoroethanol and the binding affinity to RBD of the new peptides. Under the hypothesis that the conservation of peptide secondary structure is decisive to the binding affinity, we developed a cyclized version of p6 which had more helicity than p6 and approximately half of its K D value.
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Affiliation(s)
- Carolina Sarto
- Instituto de Química Biológica - Ciencias Exactas y Naturales - Conicet/Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Ciudad Universitaria, Pabellón II, 4° Piso, C1428EGA Ciudad de Buenos Aires, Argentina
| | - Sebastián Florez-Rueda
- Leibniz Forschungsinstitut für Molekulare Pharmakologie (FMP), Robert-Roessle-Strasse 10, D-13125 Berlin, Germany
| | - Mehrnoosh Arrar
- Instituto de Cálculo - Conicet/Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Ciudad Universitaria, Intendente Güiraldes 2160, Pabellón II, 2° Piso, C1428EGA Ciudad de Buenos Aires, Argentina
| | - Christian P R Hackenberger
- Leibniz Forschungsinstitut für Molekulare Pharmakologie (FMP), Robert-Roessle-Strasse 10, D-13125 Berlin, Germany
| | - Daniel Lauster
- Institut für Biochemie und Chemie, Freie Universität Berlin, Arnimallee 22, D-14195 Berlin, Germany
| | - Santiago Di Lella
- Instituto de Química Biológica - Ciencias Exactas y Naturales - Conicet/Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Ciudad Universitaria, Pabellón II, 4° Piso, C1428EGA Ciudad de Buenos Aires, Argentina
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11
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Tolksdorf B, Nie C, Niemeyer D, Röhrs V, Berg J, Lauster D, Adler JM, Haag R, Trimpert J, Kaufer B, Drosten C, Kurreck J. Inhibition of SARS-CoV-2 Replication by a Small Interfering RNA Targeting the Leader Sequence. Viruses 2021; 13:v13102030. [PMID: 34696460 PMCID: PMC8539227 DOI: 10.3390/v13102030] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2021] [Revised: 10/04/2021] [Accepted: 10/06/2021] [Indexed: 12/16/2022] Open
Abstract
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has infected almost 200 million people worldwide and led to approximately 4 million deaths as of August 2021. Despite successful vaccine development, treatment options are limited. A promising strategy to specifically target viral infections is to suppress viral replication through RNA interference (RNAi). Hence, we designed eight small interfering RNAs (siRNAs) targeting the highly conserved 5′-untranslated region (5′-UTR) of SARS-CoV-2. The most promising candidate identified in initial reporter assays, termed siCoV6, targets the leader sequence of the virus, which is present in the genomic as well as in all subgenomic RNAs. In assays with infectious SARS-CoV-2, it reduced replication by two orders of magnitude and prevented the development of a cytopathic effect. Moreover, it retained its activity against the SARS-CoV-2 alpha variant and has perfect homology against all sequences of the delta variant that were analyzed by bioinformatic means. Interestingly, the siRNA was even highly active in virus replication assays with the SARS-CoV-1 family member. This work thus identified a very potent siRNA with a broad activity against various SARS-CoV viruses that represents a promising candidate for the development of new treatment options.
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Affiliation(s)
- Beatrice Tolksdorf
- Applied Biochemistry, Institute of Biotechnology, Technische Universität Berlin, 10623 Berlin, Germany; (B.T.); (V.R.); (J.B.)
| | - Chuanxiong Nie
- Institute of Chemistry and Biochemistry, Freie Universität Berlin, 14195 Berlin, Germany; (C.N.); (D.L.); (R.H.)
| | - Daniela Niemeyer
- German Centre for Infection Research (DZIF), Charitéplatz 1, 10117 Berlin, Germany; (D.N.); (C.D.)
- Institute of Virology, Charité-Universitätsmedizin Berlin, 10117 Berlin, Germany
| | - Viola Röhrs
- Applied Biochemistry, Institute of Biotechnology, Technische Universität Berlin, 10623 Berlin, Germany; (B.T.); (V.R.); (J.B.)
| | - Johanna Berg
- Applied Biochemistry, Institute of Biotechnology, Technische Universität Berlin, 10623 Berlin, Germany; (B.T.); (V.R.); (J.B.)
| | - Daniel Lauster
- Institute of Chemistry and Biochemistry, Freie Universität Berlin, 14195 Berlin, Germany; (C.N.); (D.L.); (R.H.)
| | - Julia M. Adler
- Department of Veterinary Medicine, Institute of Virology, Freie Universität Berlin, 14163 Berlin, Germany; (J.M.A.); (J.T.); (B.K.)
- Department of Infectious Diseases and Respiratory Medicine, Charité-Universitätsmedizin Berlin, 10117 Berlin, Germany
| | - Rainer Haag
- Institute of Chemistry and Biochemistry, Freie Universität Berlin, 14195 Berlin, Germany; (C.N.); (D.L.); (R.H.)
| | - Jakob Trimpert
- Department of Veterinary Medicine, Institute of Virology, Freie Universität Berlin, 14163 Berlin, Germany; (J.M.A.); (J.T.); (B.K.)
| | - Benedikt Kaufer
- Department of Veterinary Medicine, Institute of Virology, Freie Universität Berlin, 14163 Berlin, Germany; (J.M.A.); (J.T.); (B.K.)
| | - Christian Drosten
- German Centre for Infection Research (DZIF), Charitéplatz 1, 10117 Berlin, Germany; (D.N.); (C.D.)
- Institute of Virology, Charité-Universitätsmedizin Berlin, 10117 Berlin, Germany
| | - Jens Kurreck
- Applied Biochemistry, Institute of Biotechnology, Technische Universität Berlin, 10623 Berlin, Germany; (B.T.); (V.R.); (J.B.)
- Correspondence: ; Tel.:+ 49-30-314-27581
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12
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Stadtmueller MN, Bhatia S, Kiran P, Hilsch M, Reiter-Scherer V, Adam L, Parshad B, Budt M, Klenk S, Sellrie K, Lauster D, Seeberger PH, Hackenberger CPR, Herrmann A, Haag R, Wolff T. Evaluation of Multivalent Sialylated Polyglycerols for Resistance Induction in and Broad Antiviral Activity against Influenza A Viruses. J Med Chem 2021; 64:12774-12789. [PMID: 34432457 DOI: 10.1021/acs.jmedchem.1c00794] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The development of multivalent sialic acid-based inhibitors active against a variety of influenza A virus (IAV) strains has been hampered by high genetic and structural variability of the targeted viral hemagglutinin (HA). Here, we addressed this challenge by employing sialylated polyglycerols (PGs). Efficacy of prototypic PGs was restricted to a narrow spectrum of IAV strains. To understand this restriction, we selected IAV mutants resistant to a prototypic multivalent sialylated PG by serial passaging. Resistance mutations mapped to the receptor binding site of HA, which was accompanied by altered receptor binding profiles of mutant viruses as detected by glycan array analysis. Specifying the inhibitor functionalization to 2,6-α-sialyllactose (SL) and adjusting the linker yielded a rationally designed inhibitor covering an extended spectrum of inhibited IAV strains. These results highlight the importance of integrating virological data with chemical synthesis and structural data for the development of sialylated PGs toward broad anti-influenza compounds.
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Affiliation(s)
- Marlena N Stadtmueller
- Unit 17, Influenza and Other Respiratory Viruses, Robert Koch-Institut, Seestraße 10, 13353 Berlin, Germany
| | - Sumati Bhatia
- Institut für Chemie und Biochemie, Freie Universität Berlin, Takustr. 3, 14195 Berlin, Germany
| | - Pallavi Kiran
- Institut für Chemie und Biochemie, Freie Universität Berlin, Takustr. 3, 14195 Berlin, Germany
| | - Malte Hilsch
- Institut für Biologie, Molekulare Biophysik, IRI Life Sciences, Humboldt-Universität zu Berlin, Invalidenstr. 42, 10115 Berlin, Germany
| | - Valentin Reiter-Scherer
- Institut für Biologie, Molekulare Biophysik, IRI Life Sciences, Humboldt-Universität zu Berlin, Invalidenstr. 42, 10115 Berlin, Germany
| | - Lutz Adam
- Leibniz-Forschungsinstitut für Molekulare Pharmakologie (FMP), Robert-Roessle Strasse 10, 13125 Berlin, Germany.,Institut für Chemie, Humboldt Universität zu Berlin, Brook-Taylor Str. 2, 12489 Berlin, Germany
| | - Badri Parshad
- Institut für Chemie und Biochemie, Freie Universität Berlin, Takustr. 3, 14195 Berlin, Germany
| | - Matthias Budt
- Unit 17, Influenza and Other Respiratory Viruses, Robert Koch-Institut, Seestraße 10, 13353 Berlin, Germany
| | - Simon Klenk
- Leibniz-Forschungsinstitut für Molekulare Pharmakologie (FMP), Robert-Roessle Strasse 10, 13125 Berlin, Germany.,Institut für Chemie, Humboldt Universität zu Berlin, Brook-Taylor Str. 2, 12489 Berlin, Germany
| | - Katrin Sellrie
- Department for Biomolecular Systems, Max Planck Institute for Colloids and Interfaces, Am Mühlenberg 1, 14476 Potsdam, Germany
| | - Daniel Lauster
- Institut für Chemie und Biochemie, Freie Universität Berlin, Takustr. 3, 14195 Berlin, Germany.,Institut für Biologie, Molekulare Biophysik, IRI Life Sciences, Humboldt-Universität zu Berlin, Invalidenstr. 42, 10115 Berlin, Germany
| | - Peter H Seeberger
- Department for Biomolecular Systems, Max Planck Institute for Colloids and Interfaces, Am Mühlenberg 1, 14476 Potsdam, Germany
| | - Christian P R Hackenberger
- Leibniz-Forschungsinstitut für Molekulare Pharmakologie (FMP), Robert-Roessle Strasse 10, 13125 Berlin, Germany
| | - Andreas Herrmann
- Institut für Biologie, Molekulare Biophysik, IRI Life Sciences, Humboldt-Universität zu Berlin, Invalidenstr. 42, 10115 Berlin, Germany
| | - Rainer Haag
- Institut für Chemie und Biochemie, Freie Universität Berlin, Takustr. 3, 14195 Berlin, Germany
| | - Thorsten Wolff
- Unit 17, Influenza and Other Respiratory Viruses, Robert Koch-Institut, Seestraße 10, 13353 Berlin, Germany
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13
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Sharma A, Thongrom B, Bhatia S, von Lospichl B, Addante A, Graeber SY, Lauster D, Mall MA, Gradzielski M, Haag R. Polyglycerol-Based Mucus-Inspired Hydrogels. Macromol Rapid Commun 2021; 42:e2100303. [PMID: 34418212 DOI: 10.1002/marc.202100303] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2021] [Revised: 07/23/2021] [Indexed: 12/31/2022]
Abstract
The mucus layer is a hydrogel network that covers mucosal surfaces of the human body. Mucus has important protective properties that are related to its unique rheological properties, which are based on mucins being the main glycoprotein constituents. Mucin macromolecules entangle with one another and form a physical network that is instrumental for many important defense functions. Mucus derived from various human or animal sources is poorly defined and thus not suitable for many application purposes. Herein, a synthetic route is fabricated to afford a library of compositionally defined mucus-inspired hydrogels (MIHs). MIHs are synthesized by thiol oxidation to render disulfide bonds between the crosslinker ethoxylated trimethylolpropane tri(3-mercaptopropionate) (THIOCURE ETTMP 1300) and the linear precursors, dithiolated linear polyglycerol (LPG(SH)2 ) or polyethylene glycol (PEG(SH)2 ) of different molecular weights. The mixing ratio of linear polymers versus crosslinker and the length of the linear polymer are varied, thus delivering a library of compositionally defined mucin-inspired constructs. Their viscoelastic properties are determined by frequency sweeps at 25 and 37 °C and compared to the corresponding behavior of native human mucus. Here, MIHs composed of a 10:1 ratio of LPG(SH)2 and ETTMP 1300 are proved to be the best comparable to human airway mucus rheology.
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Affiliation(s)
- Antara Sharma
- Institut für Chemie und Biochemie, Freie Universität Berlin, Takustraße 3, Berlin, 14195, Germany
| | - Boonya Thongrom
- Institut für Chemie und Biochemie, Freie Universität Berlin, Takustraße 3, Berlin, 14195, Germany
| | - Sumati Bhatia
- Institut für Chemie und Biochemie, Freie Universität Berlin, Takustraße 3, Berlin, 14195, Germany
| | - Benjamin von Lospichl
- Institut für Chemie, Technische Universität Berlin, Straße des 17. Juni 124, Berlin, 10623, Germany
| | - Annalisa Addante
- Department of Pediatric Respiratory Medicine, Immunology and Critical Care Medicine, corporate member of Freie Universität Berlin and Humboldt Universität zu Berlin, Charité - Universitätsmedizin Berlin, Berlin, 13353, Germany.,Berlin Institute of Health at Charité - Universitätsmedizin Berlin, Berlin, 10178, Germany.,associated partner site, Deutsches Zentrum für Lungenforschung e. V., Aulweg 130, Gießen, 35392, Germany
| | - Simon Y Graeber
- Department of Pediatric Respiratory Medicine, Immunology and Critical Care Medicine, corporate member of Freie Universität Berlin and Humboldt Universität zu Berlin, Charité - Universitätsmedizin Berlin, Berlin, 13353, Germany.,Berlin Institute of Health at Charité - Universitätsmedizin Berlin, Berlin, 10178, Germany.,associated partner site, Deutsches Zentrum für Lungenforschung e. V., Aulweg 130, Gießen, 35392, Germany
| | - Daniel Lauster
- Institut für Chemie und Biochemie, Fachbereich Biologie, Chemie, Pharmazie, Freie Universität Berlin, Arnimallee 22, Berlin, 14195, Germany
| | - Marcus A Mall
- Department of Pediatric Respiratory Medicine, Immunology and Critical Care Medicine, corporate member of Freie Universität Berlin and Humboldt Universität zu Berlin, Charité - Universitätsmedizin Berlin, Berlin, 13353, Germany.,Berlin Institute of Health at Charité - Universitätsmedizin Berlin, Berlin, 10178, Germany.,associated partner site, Deutsches Zentrum für Lungenforschung e. V., Aulweg 130, Gießen, 35392, Germany
| | - Michael Gradzielski
- Institut für Chemie, Technische Universität Berlin, Straße des 17. Juni 124, Berlin, 10623, Germany
| | - Rainer Haag
- Institut für Chemie und Biochemie, Freie Universität Berlin, Takustraße 3, Berlin, 14195, Germany
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14
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Nie C, Pouyan P, Lauster D, Trimpert J, Kerkhoff Y, Szekeres GP, Wallert M, Block S, Sahoo AK, Dernedde J, Pagel K, Kaufer BB, Netz RR, Ballauff M, Haag R. Polysulfate hemmen durch elektrostatische Wechselwirkungen die SARS‐CoV‐2‐Infektion**. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202102717] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Chuanxiong Nie
- Institut für Chemie und Biochemie Freie Universität Berlin Arnimallee 22 14195 Berlin Deutschland
- Institut für Virologie Freie Universität Berlin Robert-von-Ostertag-Straße 7–13 14163 Berlin Deutschland
| | - Paria Pouyan
- Institut für Chemie und Biochemie Freie Universität Berlin Arnimallee 22 14195 Berlin Deutschland
| | - Daniel Lauster
- Institut für Chemie und Biochemie Freie Universität Berlin Arnimallee 22 14195 Berlin Deutschland
| | - Jakob Trimpert
- Institut für Virologie Freie Universität Berlin Robert-von-Ostertag-Straße 7–13 14163 Berlin Deutschland
| | - Yannic Kerkhoff
- Department of Chemistry and Biochemistry Emmy-Noether Group “Bionanointerfaces” Freie Universität Berlin Arnimallee 22 14195 Berlin Deutschland
| | - Gergo Peter Szekeres
- Institut für Chemie und Biochemie Freie Universität Berlin Arnimallee 22 14195 Berlin Deutschland
- Department of Molecular Physics Fritz Haber Institute of the Max Planck Society Faradayweg 4–6 14195 Berlin Deutschland
| | - Matthias Wallert
- Department of Chemistry and Biochemistry Emmy-Noether Group “Bionanointerfaces” Freie Universität Berlin Arnimallee 22 14195 Berlin Deutschland
| | - Stephan Block
- Department of Chemistry and Biochemistry Emmy-Noether Group “Bionanointerfaces” Freie Universität Berlin Arnimallee 22 14195 Berlin Deutschland
| | - Anil Kumar Sahoo
- Fachbereich Physik Freie Universität Berlin Arnimallee 14 14195 Berlin Deutschland
- Max Planck Institute of Colloids and Interfaces Am Mühlenberg 1 14476 Potsdam Deutschland
| | - Jens Dernedde
- Institut für Laboratoriumsmedizin, Klinische Chemie und Pathobiochemie Charité-Universitätsmedizin Berlin Augustenburgerplatz 1 13353 Berlin Deutschland
| | - Kevin Pagel
- Institut für Chemie und Biochemie Freie Universität Berlin Arnimallee 22 14195 Berlin Deutschland
- Department of Molecular Physics Fritz Haber Institute of the Max Planck Society Faradayweg 4–6 14195 Berlin Deutschland
| | - Benedikt B. Kaufer
- Institut für Virologie Freie Universität Berlin Robert-von-Ostertag-Straße 7–13 14163 Berlin Deutschland
| | - Roland R. Netz
- Fachbereich Physik Freie Universität Berlin Arnimallee 14 14195 Berlin Deutschland
| | - Matthias Ballauff
- Institut für Chemie und Biochemie Freie Universität Berlin Arnimallee 22 14195 Berlin Deutschland
| | - Rainer Haag
- Institut für Chemie und Biochemie Freie Universität Berlin Arnimallee 22 14195 Berlin Deutschland
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15
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Nie C, Pouyan P, Lauster D, Trimpert J, Kerkhoff Y, Szekeres GP, Wallert M, Block S, Sahoo AK, Dernedde J, Pagel K, Kaufer BB, Netz RR, Ballauff M, Haag R. Polysulfates Block SARS-CoV-2 Uptake through Electrostatic Interactions*. Angew Chem Int Ed Engl 2021; 60:15870-15878. [PMID: 33860605 PMCID: PMC8250366 DOI: 10.1002/anie.202102717] [Citation(s) in RCA: 39] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2021] [Revised: 03/29/2021] [Indexed: 12/20/2022]
Abstract
Here we report that negatively charged polysulfates can bind to the spike protein of SARS‐CoV‐2 via electrostatic interactions. Using a plaque reduction assay, we compare inhibition of SARS‐CoV‐2 by heparin, pentosan sulfate, linear polyglycerol sulfate (LPGS) and hyperbranched polyglycerol sulfate (HPGS). Highly sulfated LPGS is the optimal inhibitor, with an IC50 of 67 μg mL−1 (approx. 1.6 μm). This synthetic polysulfate exhibits more than 60‐fold higher virus inhibitory activity than heparin (IC50: 4084 μg mL−1), along with much lower anticoagulant activity. Furthermore, in molecular dynamics simulations, we verified that LPGS can bind more strongly to the spike protein than heparin, and that LPGS can interact even more with the spike protein of the new N501Y and E484K variants. Our study demonstrates that the entry of SARS‐CoV‐2 into host cells can be blocked via electrostatic interactions, therefore LPGS can serve as a blueprint for the design of novel viral inhibitors of SARS‐CoV‐2.
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Affiliation(s)
- Chuanxiong Nie
- Institut für Chemie und Biochemie, Freie Universität Berlin, Arnimallee 22, 14195, Berlin, Germany.,Institut für Virologie, Freie Universität Berlin, Robert-von-Ostertag-Strasse 7-13, 14163, Berlin, Germany
| | - Paria Pouyan
- Institut für Chemie und Biochemie, Freie Universität Berlin, Arnimallee 22, 14195, Berlin, Germany
| | - Daniel Lauster
- Institut für Chemie und Biochemie, Freie Universität Berlin, Arnimallee 22, 14195, Berlin, Germany
| | - Jakob Trimpert
- Institut für Virologie, Freie Universität Berlin, Robert-von-Ostertag-Strasse 7-13, 14163, Berlin, Germany
| | - Yannic Kerkhoff
- Department of Chemistry and Biochemistry, Emmy-Noether Group "Bionanointerfaces", Freie Universität Berlin, Arnimallee 22, 14195, Berlin, Germany
| | - Gergo Peter Szekeres
- Institut für Chemie und Biochemie, Freie Universität Berlin, Arnimallee 22, 14195, Berlin, Germany.,Department of Molecular Physics, Fritz Haber Institute of the Max Planck Society, Faradayweg 4-6, 14195, Berlin, Germany
| | - Matthias Wallert
- Department of Chemistry and Biochemistry, Emmy-Noether Group "Bionanointerfaces", Freie Universität Berlin, Arnimallee 22, 14195, Berlin, Germany
| | - Stephan Block
- Department of Chemistry and Biochemistry, Emmy-Noether Group "Bionanointerfaces", Freie Universität Berlin, Arnimallee 22, 14195, Berlin, Germany
| | - Anil Kumar Sahoo
- Fachbereich Physik, Freie Universität Berlin, Arnimallee 14, 14195, Berlin, Germany.,Max Planck Institute of Colloids and Interfaces, Am Mühlenberg 1, 14476, Potsdam, Germany
| | - Jens Dernedde
- Institut für Laboratoriumsmedizin, Klinische Chemie und Pathobiochemie, Charité-Universitätsmedizin Berlin, Augustenburgerplatz 1, 13353, Berlin, Germany
| | - Kevin Pagel
- Institut für Chemie und Biochemie, Freie Universität Berlin, Arnimallee 22, 14195, Berlin, Germany.,Department of Molecular Physics, Fritz Haber Institute of the Max Planck Society, Faradayweg 4-6, 14195, Berlin, Germany
| | - Benedikt B Kaufer
- Institut für Virologie, Freie Universität Berlin, Robert-von-Ostertag-Strasse 7-13, 14163, Berlin, Germany
| | - Roland R Netz
- Fachbereich Physik, Freie Universität Berlin, Arnimallee 14, 14195, Berlin, Germany
| | - Matthias Ballauff
- Institut für Chemie und Biochemie, Freie Universität Berlin, Arnimallee 22, 14195, Berlin, Germany
| | - Rainer Haag
- Institut für Chemie und Biochemie, Freie Universität Berlin, Arnimallee 22, 14195, Berlin, Germany
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16
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Bhatia S, Hilsch M, Cuellar‐Camacho JL, Ludwig K, Nie C, Parshad B, Wallert M, Block S, Lauster D, Böttcher C, Herrmann A, Haag R. Adaptive Flexible Sialylated Nanogels as Highly Potent Influenza A Virus Inhibitors. Angew Chem Int Ed Engl 2020; 59:12417-12422. [PMID: 32441859 PMCID: PMC7384064 DOI: 10.1002/anie.202006145] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Indexed: 11/13/2022]
Abstract
Flexible multivalent 3D nanosystems that can deform and adapt onto the virus surface via specific ligand-receptor multivalent interactions can efficiently block virus adhesion onto the cell. We here report on the synthesis of a 250 nm sized flexible sialylated nanogel that adapts onto the influenza A virus (IAV) surface via multivalent binding of its sialic acid (SA) residues with hemagglutinin spike proteins on the virus surface. We could demonstrate that the high flexibility of sialylated nanogel improves IAV inhibition by 400 times as compared to a rigid sialylated nanogel in the hemagglutination inhibition assay. The flexible sialylated nanogel efficiently inhibits the influenza A/X31 (H3N2) infection with IC50 values in low picomolar concentrations and also blocks the virus entry into MDCK-II cells.
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Affiliation(s)
- Sumati Bhatia
- Institute of Chemistry and BiochemistryFreie Universität BerlinTakustraße 314195BerlinGermany
| | - Malte Hilsch
- Institute of Biology & IRI Life SciencesHumboldt-Universität zu BerlinInvalidenstraße 4210115BerlinGermany
| | | | - Kai Ludwig
- Forschungszentrum für Elektronenmikroskopie, and Core Facility BioSupraMolInstitute of Chemistry and BiochemistryFreie Universität BerlinFabeckstr. 36a14195BerlinGermany
| | - Chuanxiong Nie
- Institute of Chemistry and BiochemistryFreie Universität BerlinTakustraße 314195BerlinGermany
| | - Badri Parshad
- Institute of Chemistry and BiochemistryFreie Universität BerlinTakustraße 314195BerlinGermany
| | - Matthias Wallert
- Institute of Chemistry and BiochemistryFreie Universität BerlinTakustraße 314195BerlinGermany
| | - Stephan Block
- Institute of Chemistry and BiochemistryFreie Universität BerlinTakustraße 314195BerlinGermany
| | - Daniel Lauster
- Institute of Chemistry and BiochemistryFreie Universität BerlinTakustraße 314195BerlinGermany
| | - Christoph Böttcher
- Forschungszentrum für Elektronenmikroskopie, and Core Facility BioSupraMolInstitute of Chemistry and BiochemistryFreie Universität BerlinFabeckstr. 36a14195BerlinGermany
| | - Andreas Herrmann
- Institute of Biology & IRI Life SciencesHumboldt-Universität zu BerlinInvalidenstraße 4210115BerlinGermany
| | - Rainer Haag
- Institute of Chemistry and BiochemistryFreie Universität BerlinTakustraße 314195BerlinGermany
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17
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Bhatia S, Hilsch M, Cuellar‐Camacho JL, Ludwig K, Nie C, Parshad B, Wallert M, Block S, Lauster D, Böttcher C, Herrmann A, Haag R. Adaptive Flexible Sialylated Nanogels as Highly Potent Influenza A Virus Inhibitors. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202006145] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Sumati Bhatia
- Institute of Chemistry and Biochemistry Freie Universität Berlin Takustraße 3 14195 Berlin Germany
| | - Malte Hilsch
- Institute of Biology & IRI Life Sciences Humboldt-Universität zu Berlin Invalidenstraße 42 10115 Berlin Germany
| | | | - Kai Ludwig
- Forschungszentrum für Elektronenmikroskopie, and Core Facility BioSupraMol Institute of Chemistry and Biochemistry Freie Universität Berlin Fabeckstr. 36a 14195 Berlin Germany
| | - Chuanxiong Nie
- Institute of Chemistry and Biochemistry Freie Universität Berlin Takustraße 3 14195 Berlin Germany
| | - Badri Parshad
- Institute of Chemistry and Biochemistry Freie Universität Berlin Takustraße 3 14195 Berlin Germany
| | - Matthias Wallert
- Institute of Chemistry and Biochemistry Freie Universität Berlin Takustraße 3 14195 Berlin Germany
| | - Stephan Block
- Institute of Chemistry and Biochemistry Freie Universität Berlin Takustraße 3 14195 Berlin Germany
| | - Daniel Lauster
- Institute of Chemistry and Biochemistry Freie Universität Berlin Takustraße 3 14195 Berlin Germany
| | - Christoph Böttcher
- Forschungszentrum für Elektronenmikroskopie, and Core Facility BioSupraMol Institute of Chemistry and Biochemistry Freie Universität Berlin Fabeckstr. 36a 14195 Berlin Germany
| | - Andreas Herrmann
- Institute of Biology & IRI Life Sciences Humboldt-Universität zu Berlin Invalidenstraße 42 10115 Berlin Germany
| | - Rainer Haag
- Institute of Chemistry and Biochemistry Freie Universität Berlin Takustraße 3 14195 Berlin Germany
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18
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Cuellar-Camacho JL, Bhatia S, Reiter-Scherer V, Lauster D, Liese S, Rabe JP, Herrmann A, Haag R. Quantification of Multivalent Interactions between Sialic Acid and Influenza A Virus Spike Proteins by Single-Molecule Force Spectroscopy. J Am Chem Soc 2020; 142:12181-12192. [PMID: 32538085 DOI: 10.1021/jacs.0c02852] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Multivalency is a key principle in reinforcing reversible molecular interactions through the formation of multiple bonds. The influenza A virus deploys this strategy to bind strongly to cell surface receptors. We performed single-molecule force spectroscopy (SMFS) to investigate the rupture force required to break individual and multiple bonds formed between synthetic sialic acid (SA) receptors and the two principal spike proteins of the influenza A virus (H3N2): hemagglutinin (H3) and neuraminidase (N2). Kinetic parameters such as the rupture length (χβ) and dissociation rate (koff) are extracted using the model by Friddle, De Yoreo, and Noy. We found that a monovalent SA receptor binds to N2 with a significantly higher bond lifetime (270 ms) compared to that for H3 (36 ms). By extending the single-bond rupture analysis to a multibond system of n protein-receptor pairs, we provide an unprecedented quantification of the mechanistic features of multivalency between H3 and N2 with SA receptors and show that the stability of the multivalent connection increases with the number of bonds from tens to hundreds of milliseconds. Association rates (kon) are also provided, and an estimation of the dissociation constants (KD) between the SA receptors to both proteins indicate a 17-fold higher binding affinity for the SA-N2 bond with respect to that of SA-H3. An optimal designed multivalent SA receptor showed a higher binding stability to the H3 protein of the influenza A virus than to the monovalent SA receptor. Our study emphasizes the influence of the scaffold on the presentation of receptors during multivalent binding.
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Affiliation(s)
- Jose Luis Cuellar-Camacho
- Institute of Chemistry and Biochemistry, Freie Universität Berlin, Takustraße 3, 14195 Berlin, Germany
| | - Sumati Bhatia
- Institute of Chemistry and Biochemistry, Freie Universität Berlin, Takustraße 3, 14195 Berlin, Germany
| | - Valentin Reiter-Scherer
- Department of Physics & IRIS Adlershof, Humboldt-Universität zu Berlin, Newtonstraße 15, 12489 Berlin, Germany
| | - Daniel Lauster
- Institute of Chemistry and Biochemistry, Freie Universität Berlin, Takustraße 3, 14195 Berlin, Germany.,Institute for Biology & IRI Life Sciences, Humboldt-Universität zu Berlin, Invalidenstraße 42, 10115 Berlin, Germany
| | - Susanne Liese
- Department of Mathematics, University of Oslo, Moltke Moes vei 35, 1053 Oslo, Norway
| | - Jürgen P Rabe
- Department of Physics & IRIS Adlershof, Humboldt-Universität zu Berlin, Newtonstraße 15, 12489 Berlin, Germany
| | - Andreas Herrmann
- Institute for Biology & IRI Life Sciences, Humboldt-Universität zu Berlin, Invalidenstraße 42, 10115 Berlin, Germany
| | - Rainer Haag
- Institute of Chemistry and Biochemistry, Freie Universität Berlin, Takustraße 3, 14195 Berlin, Germany
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19
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Lauster D, Klenk S, Ludwig K, Nojoumi S, Behren S, Adam L, Stadtmüller M, Saenger S, Zimmler S, Hönzke K, Yao L, Hoffmann U, Bardua M, Hamann A, Witzenrath M, Sander LE, Wolff T, Hocke AC, Hippenstiel S, De Carlo S, Neudecker J, Osterrieder K, Budisa N, Netz RR, Böttcher C, Liese S, Herrmann A, Hackenberger CPR. Phage capsid nanoparticles with defined ligand arrangement block influenza virus entry. Nat Nanotechnol 2020; 15:373-379. [PMID: 32231271 DOI: 10.1038/s41565-020-0660-2] [Citation(s) in RCA: 78] [Impact Index Per Article: 19.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/18/2018] [Accepted: 02/25/2020] [Indexed: 05/21/2023]
Abstract
Multivalent interactions at biological interfaces occur frequently in nature and mediate recognition and interactions in essential physiological processes such as cell-to-cell adhesion. Multivalency is also a key principle that allows tight binding between pathogens and host cells during the initial stages of infection. One promising approach to prevent infection is the design of synthetic or semisynthetic multivalent binders that interfere with pathogen adhesion1-4. Here, we present a multivalent binder that is based on a spatially defined arrangement of ligands for the viral spike protein haemagglutinin of the influenza A virus. Complementary experimental and theoretical approaches demonstrate that bacteriophage capsids, which carry host cell haemagglutinin ligands in an arrangement matching the geometry of binding sites of the spike protein, can bind to viruses in a defined multivalent mode. These capsids cover the entire virus envelope, thus preventing its binding to the host cell as visualized by cryo-electron tomography. As a consequence, virus infection can be inhibited in vitro, ex vivo and in vivo. Such highly functionalized capsids present an alternative to strategies that target virus entry by spike-inhibiting antibodies5 and peptides6 or that address late steps of the viral replication cycle7.
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Affiliation(s)
- Daniel Lauster
- Institut für Chemie und Biochemie, Organische Chemie, Freie Universität Berlin, Berlin, Germany
- Institut für Biologie, Molekulare Biophysik, IRI Life Sciences, Humboldt-Universität zu Berlin, Berlin, Germany
| | - Simon Klenk
- Leibniz-Forschungsinstitut für Molekulare Pharmakologie (FMP), Berlin, Germany
- Institut für Chemie, Humboldt-Universität zu Berlin, Berlin, Germany
| | - Kai Ludwig
- Forschungszentrum für Elektronenmikroskopie und Gerätezentrum BioSupraMol, Institut für Chemie und Biochemie, Freie Universität Berlin, Berlin, Germany
| | - Saba Nojoumi
- Institut für Chemie, Biokatalyse, Technische Universität Berlin, Berlin, Germany
- Department of Chemistry, University of Manitoba, Winnipeg, Canada
| | - Sandra Behren
- Leibniz-Forschungsinstitut für Molekulare Pharmakologie (FMP), Berlin, Germany
- Institut für Chemie, Humboldt-Universität zu Berlin, Berlin, Germany
| | - Lutz Adam
- Leibniz-Forschungsinstitut für Molekulare Pharmakologie (FMP), Berlin, Germany
- Institut für Chemie, Humboldt-Universität zu Berlin, Berlin, Germany
| | - Marlena Stadtmüller
- Robert Koch Institut, FG 17 Influenzaviren und weitere Viren des Respirationstraktes, Berlin, Germany
| | - Sandra Saenger
- Robert Koch Institut, FG 17 Influenzaviren und weitere Viren des Respirationstraktes, Berlin, Germany
| | - Stephanie Zimmler
- Robert Koch Institut, FG 17 Influenzaviren und weitere Viren des Respirationstraktes, Berlin, Germany
| | - Katja Hönzke
- Medizinische Klinik mit Schwerpunkt Infektiologie und Pneumologie, Charité, Universitätsmedizin Berlin, Partner von Freie Universität Berlin, Humboldt-Universität zu Berlin und Berlin Institute of Health, Berlin, Germany
| | - Ling Yao
- Medizinische Klinik mit Schwerpunkt Infektiologie und Pneumologie, Charité, Universitätsmedizin Berlin, Partner von Freie Universität Berlin, Humboldt-Universität zu Berlin und Berlin Institute of Health, Berlin, Germany
| | - Ute Hoffmann
- Experimentelle Rheumatologie, Deutsches Rheuma-Forschungszentrum Berlin, ein Leibniz-Institut, Berlin, Germany
| | - Markus Bardua
- Experimentelle Rheumatologie, Deutsches Rheuma-Forschungszentrum Berlin, ein Leibniz-Institut, Berlin, Germany
| | - Alf Hamann
- Experimentelle Rheumatologie, Deutsches Rheuma-Forschungszentrum Berlin, ein Leibniz-Institut, Berlin, Germany
| | - Martin Witzenrath
- Medizinische Klinik mit Schwerpunkt Infektiologie und Pneumologie, Charité, Universitätsmedizin Berlin, Partner von Freie Universität Berlin, Humboldt-Universität zu Berlin und Berlin Institute of Health, Berlin, Germany
| | - Leif E Sander
- Medizinische Klinik mit Schwerpunkt Infektiologie und Pneumologie, Charité, Universitätsmedizin Berlin, Partner von Freie Universität Berlin, Humboldt-Universität zu Berlin und Berlin Institute of Health, Berlin, Germany
| | - Thorsten Wolff
- Robert Koch Institut, FG 17 Influenzaviren und weitere Viren des Respirationstraktes, Berlin, Germany
| | - Andreas C Hocke
- Medizinische Klinik mit Schwerpunkt Infektiologie und Pneumologie, Charité, Universitätsmedizin Berlin, Partner von Freie Universität Berlin, Humboldt-Universität zu Berlin und Berlin Institute of Health, Berlin, Germany
| | - Stefan Hippenstiel
- Medizinische Klinik mit Schwerpunkt Infektiologie und Pneumologie, Charité, Universitätsmedizin Berlin, Partner von Freie Universität Berlin, Humboldt-Universität zu Berlin und Berlin Institute of Health, Berlin, Germany
| | | | - Jens Neudecker
- Chirurgische Klinik, Campus Mitte/Campus Virchow Klinikum, Charité, Universitätsmedizin Berlin, Partner von Freie Universität Berlin, Humboldt-Universität zu Berlin, und Berlin Institute of Health, Berlin, Germany
| | - Klaus Osterrieder
- Institut für Virologie, Robert von Ostertag-Haus, Zentrum für Infektionsmedizin, Freie Universität Berlin, Berlin, Germany
| | - Nediljko Budisa
- Institut für Chemie, Biokatalyse, Technische Universität Berlin, Berlin, Germany
- Department of Chemistry, University of Manitoba, Winnipeg, Canada
| | - Roland R Netz
- Fachbereich Physik, Theoretische Biophysik und Physik weicher Materie, Freie Universität Berlin, Berlin, Germany
| | - Christoph Böttcher
- Forschungszentrum für Elektronenmikroskopie und Gerätezentrum BioSupraMol, Institut für Chemie und Biochemie, Freie Universität Berlin, Berlin, Germany
| | - Susanne Liese
- Fachbereich Physik, Theoretische Biophysik und Physik weicher Materie, Freie Universität Berlin, Berlin, Germany.
- Department of Mathematics, University of Oslo (UiO), Oslo, Norway.
| | - Andreas Herrmann
- Institut für Biologie, Molekulare Biophysik, IRI Life Sciences, Humboldt-Universität zu Berlin, Berlin, Germany.
| | - Christian P R Hackenberger
- Leibniz-Forschungsinstitut für Molekulare Pharmakologie (FMP), Berlin, Germany.
- Institut für Chemie, Humboldt-Universität zu Berlin, Berlin, Germany.
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20
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Müller M, Lauster D, Wildenauer HHK, Herrmann A, Block S. Mobility-Based Quantification of Multivalent Virus-Receptor Interactions: New Insights Into Influenza A Virus Binding Mode. Nano Lett 2019; 19:1875-1882. [PMID: 30719917 DOI: 10.1021/acs.nanolett.8b04969] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Viruses, such as influenza A, typically bind to the plasma membrane of their host by engaging multiple membrane receptors in parallel, thereby forming so-called multivalent interactions that are created by the collective action of multiple weak ligand-receptor bonds. The overall interaction strength can be modulated by changing the number of engaged receptors. This feature is used by viruses to achieve a sufficiently firm attachment to the host's plasma membrane but also allows progeny viruses to leave the plasma membrane after completing the virus replication cycle. Design of strategies to prevent infection, for example, by disturbing these attachment and detachment processes upon application of antivirals, requires quantification of the underlying multivalent interaction in absence and presence of antivirals. This is still an unresolved problem, as there is currently no approach available that allows for determining the valency (i.e., of the number of receptors bound to a particular virus) on the level of single viruses under equilibrium conditions. Herein, we track the motion of single influenza A/X31 viruses (IAVs; interacting with the ganglioside GD1a incorporated in a supported lipid bilayer) using total internal reflection fluorescence microscopy and show that IAV residence time distributions can be deconvoluted from valency effects by taking the IAV mobility into account. The so-derived off-rate distributions, expressed in dependence of an average, apparent valency, show the expected decrease in off-rate with increasing valency but also show an unexpected peak structure, which can be linked to a competition in the opposing functionalities of the two influenza A virus spike proteins, hemagglutinin (HA), and neuraminidase (NA). By application of the antiviral zanamivir that inhibits the activity of NA, we provide direct evidence, how the HA/NA balance modulates this virus-receptor interaction, allowing us to assess the inhibition concentration of zanamivir based on its effect on the multivalent interaction.
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Affiliation(s)
- Matthias Müller
- Department of Chemistry and Biochemistry, Emmy-Noether Group "Bionanointerfaces" , Freie Universität Berlin , Takustrasse 3 , 14195 Berlin , Germany
| | - Daniel Lauster
- Department of Biology, Molecular Biophysics , Humboldt-Universität zu Berlin, IRI Life Sciences , Invalidenstr. 42 , 10115 Berlin , Germany
| | - Helen H K Wildenauer
- Department of Chemistry and Biochemistry, Emmy-Noether Group "Bionanointerfaces" , Freie Universität Berlin , Takustrasse 3 , 14195 Berlin , Germany
| | - Andreas Herrmann
- Department of Biology, Molecular Biophysics , Humboldt-Universität zu Berlin, IRI Life Sciences , Invalidenstr. 42 , 10115 Berlin , Germany
| | - Stephan Block
- Department of Chemistry and Biochemistry, Emmy-Noether Group "Bionanointerfaces" , Freie Universität Berlin , Takustrasse 3 , 14195 Berlin , Germany
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21
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Reiter-Scherer V, Cuellar-Camacho JL, Bhatia S, Haag R, Herrmann A, Lauster D, Rabe JP. Force Spectroscopy Shows Dynamic Binding of Influenza Hemagglutinin and Neuraminidase to Sialic Acid. Biophys J 2019; 116:1037-1048. [PMID: 30799074 DOI: 10.1016/j.bpj.2019.01.041] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2018] [Revised: 11/30/2018] [Accepted: 01/14/2019] [Indexed: 10/27/2022] Open
Abstract
The influenza A virus infects target cells through multivalent interactions of its major spike proteins, hemagglutinin (HA) and neuraminidase (NA), with the cellular receptor sialic acid (SA). HA is known to mediate the attachment of the virion to the cell, whereas NA enables the release of newly formed virions by cleaving SA from the cell. Because both proteins target the same receptor but have antagonistic functions, virus infection depends on a properly tuned balance of the kinetics of HA and NA activities for viral entry to and release from the host cell. Here, dynamic single-molecule force spectroscopy, based on scanning force microscopy, was employed to determine these bond-specific kinetics, characterized by the off rate koff, rupture length xβ and on rate kon, as well as the related free-energy barrier ΔG and the dissociation constant KD. Measurements were conducted using surface-immobilized HA and NA of the influenza A virus strain A/California/04/2009 and a novel, to our knowledge, synthetic SA-displaying receptor for functionalization of the force probe. Single-molecule force spectroscopy at force loading rates between 100 and 50,000 pN/s revealed most probable rupture forces of the protein-SA bond in the range of 10-100 pN. Using an extension of the widely applied Bell-Evans formalism by Friddle, De Yoreo, and co-workers, it is shown that HA features a smaller xβ, a larger koff and a smaller ΔG than NA. Measurements of the binding probability at increasing contact time between the scanning force microscopy force probe and the surface allow an estimation of KD, which is found to be three times as large for HA than for NA. This suggests a stronger interaction for NA-SA than for HA-SA. The biological implications in regard to virus binding to the host cell and the release of new virions from the host cell are discussed.
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Affiliation(s)
| | | | - Sumati Bhatia
- Department of Chemistry, Freie Universität Berlin, Berlin, Germany
| | - Rainer Haag
- Department of Chemistry, Freie Universität Berlin, Berlin, Germany
| | - Andreas Herrmann
- Department of Biology and IRI Life Sciences, Humboldt-Universität zu Berlin, Berlin, Germany
| | - Daniel Lauster
- Department of Biology and IRI Life Sciences, Humboldt-Universität zu Berlin, Berlin, Germany.
| | - Jürgen P Rabe
- Department of Physics and IRIS Adlershof, Humboldt-Universität zu Berlin, Berlin, Germany.
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22
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Lauster D, Reiter-Scherer V, Cuellar Camacho LJ, Bhatia S, Rabe JP, Haag R, Herrmann A. Hooking on Viral Glycoproteins with Single Molecule Force Spectroscopy to Study Single and Multiple Bond Formations. Biophys J 2019. [DOI: 10.1016/j.bpj.2018.11.2305] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022] Open
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23
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Bandlow V, Lauster D, Ludwig K, Hilsch M, Reiter-Scherer V, Rabe JP, Böttcher C, Herrmann A, Seitz O. Sialyl-LacNAc-PNA⋅DNA Concatamers by Rolling-Circle Amplification as Multivalent Inhibitors of Influenza A Virus Particles. Chembiochem 2019; 20:159-165. [PMID: 30536690 DOI: 10.1002/cbic.201800643] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2018] [Indexed: 11/09/2022]
Abstract
The surfaces of influenza A virus (IAV) particles are packed with hundreds of homo-trimeric hemagglutinins (HAs). Monovalent sugars have low affinity for HA, but distance-optimized bivalent sialyl-LacNAc (SLN) conjugates bind it with 103 -fold enhanced potency. Herein, we describe the oligomerization of distance-optimized bivalent binders by branched and linear hybridization on long repetitive DNA templates. The most effective complexes fully inhibited IAVs at a DNA template concentration of 10-9 m. Although a 10-2 m concentration of free trisaccharide ligand is required for full inhibition of the virus, DNA templating enables a 104 -fold reduction in the amount of sugar required. Notably, hybridization-induced rigidification of the DNA templates increased the serospecificity. Cryo-TEM analysis revealed that both spaghetti-type linear forms and cotton-ball-like clusters are able to bridge several adjacent HA molecules on the IAV surface. Programmed self-assembly of ligand-nucleic acid conjugates on long DNA templates might provide generic access to target-specific, high-affinity binders of proteins on globular objects such as cells and viruses.
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Affiliation(s)
- Victor Bandlow
- Institute of Chemistry, Humboldt-Universität zu Berlin, Brook-Taylor-Strasse 2, 12489, Berlin, Germany
| | - Daniel Lauster
- Institute of Biology, Humboldt-Universität zu Berlin, Invalidenstrasse 42, 10115, Berlin, Germany
| | - Kai Ludwig
- Institute of Chemistry and Biochemistry and Core Facility BioSupraMol, Freie Universität Berlin, Fabeckstrasse 36a, 14195, Berlin, Germany
| | - Malte Hilsch
- Institute of Biology, Humboldt-Universität zu Berlin, Invalidenstrasse 42, 10115, Berlin, Germany
| | - Valentin Reiter-Scherer
- Institute of Physics, Humboldt-Universität zu Berlin, Newtonstrasse 15, 12489, Berlin, Germany
| | - Jürgen P Rabe
- Institute of Physics, Humboldt-Universität zu Berlin, Newtonstrasse 15, 12489, Berlin, Germany
| | - Christoph Böttcher
- Institute of Chemistry and Biochemistry and Core Facility BioSupraMol, Freie Universität Berlin, Fabeckstrasse 36a, 14195, Berlin, Germany
| | - Andreas Herrmann
- Institute of Biology, Humboldt-Universität zu Berlin, Invalidenstrasse 42, 10115, Berlin, Germany
| | - Oliver Seitz
- Institute of Chemistry, Humboldt-Universität zu Berlin, Brook-Taylor-Strasse 2, 12489, Berlin, Germany
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24
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Kiran P, Bhatia S, Lauster D, Aleksić S, Fleck C, Peric N, Maison W, Liese S, Keller BG, Herrmann A, Haag R. Exploring Rigid and Flexible Core Trivalent Sialosides for Influenza Virus Inhibition. Chemistry 2018; 24:19373-19385. [PMID: 30295350 PMCID: PMC6587447 DOI: 10.1002/chem.201804826] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2018] [Indexed: 12/25/2022]
Abstract
Herein, the chemical synthesis and binding analysis of functionalizable rigid and flexible core trivalent sialosides bearing oligoethylene glycol (OEG) spacers interacting with spike proteins of influenza A virus (IAV) X31 is described. Although the flexible Tris-based trivalent sialosides achieved micromolar binding constants, a trivalent binder based on a rigid adamantane core dominated flexible tripodal compounds with micromolar binding and hemagglutination inhibition constants. Simulation studies indicated increased conformational penalties for long OEG spacers. Using a systematic approach with molecular modeling and simulations as well as biophysical analysis, these findings emphasize on the importance of the scaffold rigidity and the challenges associated with the spacer length optimization.
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Affiliation(s)
- Pallavi Kiran
- Institut für Chemie und Biochemie Organische ChemieFreie Universität BerlinTakustr. 314195BerlinGermany
| | - Sumati Bhatia
- Institut für Chemie und Biochemie Organische ChemieFreie Universität BerlinTakustr. 314195BerlinGermany
| | - Daniel Lauster
- Institut für Biologie, Molekulare Biophysik, IRI Life SciencesHumboldt-Universität zu BerlinInvalidenstr. 4210115BerlinGermany
| | - Stevan Aleksić
- Institut für Chemie und Biochemie, Physikalische und Theoretische ChemieFreie Universität BerlinTakustr. 314195BerlinGermany
| | - Carsten Fleck
- Fachbereich ChemieInstitut für PharmazieUniversität HamburgBundesstr. 4520146HamburgGermany
| | - Natalija Peric
- Fachbereich ChemieInstitut für PharmazieUniversität HamburgBundesstr. 4520146HamburgGermany
| | - Wolfgang Maison
- Fachbereich ChemieInstitut für PharmazieUniversität HamburgBundesstr. 4520146HamburgGermany
| | - Susanne Liese
- Department of MathematicsUniversity of Oslo, P.O Box1053 Blinder0316OsloNorway
- Department of PhysicsFreie Universität BerlinArnimallee 1414195BerlinGermany
| | - Bettina G. Keller
- Institut für Chemie und Biochemie, Physikalische und Theoretische ChemieFreie Universität BerlinTakustr. 314195BerlinGermany
| | - Andreas Herrmann
- Institut für Biologie, Molekulare Biophysik, IRI Life SciencesHumboldt-Universität zu BerlinInvalidenstr. 4210115BerlinGermany
| | - Rainer Haag
- Institut für Chemie und Biochemie Organische ChemieFreie Universität BerlinTakustr. 314195BerlinGermany
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25
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Anedchenko EA, Samel-Pommerencke A, Tran Nguyen TM, Shahnejat-Bushehri S, Pöpsel J, Lauster D, Herrmann A, Rappsilber J, Cuomo A, Bonaldi T, Ehrenhofer-Murray AE. The kinetochore module Okp1 CENP-Q/Ame1 CENP-U is a reader for N-terminal modifications on the centromeric histone Cse4 CENP-A. EMBO J 2018; 38:embj.201898991. [PMID: 30389668 DOI: 10.15252/embj.201898991] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2018] [Revised: 10/01/2018] [Accepted: 10/05/2018] [Indexed: 11/09/2022] Open
Abstract
Kinetochores are supramolecular assemblies that link centromeres to microtubules for sister chromatid segregation in mitosis. For this, the inner kinetochore CCAN/Ctf19 complex binds to centromeric chromatin containing the histone variant CENP-A, but whether the interaction of kinetochore components to centromeric nucleosomes is regulated by posttranslational modifications is unknown. Here, we investigated how methylation of arginine 37 (R37Me) and acetylation of lysine 49 (K49Ac) on the CENP-A homolog Cse4 from Saccharomyces cerevisiae regulate molecular interactions at the inner kinetochore. Importantly, we found that the Cse4 N-terminus binds with high affinity to the Ctf19 complex subassembly Okp1/Ame1 (CENP-Q/CENP-U in higher eukaryotes), and that this interaction is inhibited by R37Me and K49Ac modification on Cse4. In vivo defects in cse4-R37A were suppressed by mutations in OKP1 and AME1, and biochemical analysis of a mutant version of Okp1 showed increased affinity for Cse4. Altogether, our results demonstrate that the Okp1/Ame1 heterodimer is a reader module for posttranslational modifications on Cse4, thereby targeting the yeast CCAN complex to centromeric chromatin.
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Affiliation(s)
- Ekaterina A Anedchenko
- Department of Molecular Cell Biology, Institut für Biologie, Humboldt-Universität zu Berlin, Berlin, Germany
| | - Anke Samel-Pommerencke
- Department of Molecular Cell Biology, Institut für Biologie, Humboldt-Universität zu Berlin, Berlin, Germany
| | - Tra My Tran Nguyen
- Department of Molecular Cell Biology, Institut für Biologie, Humboldt-Universität zu Berlin, Berlin, Germany
| | - Sara Shahnejat-Bushehri
- Department of Molecular Cell Biology, Institut für Biologie, Humboldt-Universität zu Berlin, Berlin, Germany
| | - Juliane Pöpsel
- Department of Molecular Cell Biology, Institut für Biologie, Humboldt-Universität zu Berlin, Berlin, Germany
| | - Daniel Lauster
- Department of Experimental Biophysics, Institut für Biologie, Humboldt-Universität zu Berlin, Berlin, Germany
| | - Andreas Herrmann
- Department of Experimental Biophysics, Institut für Biologie, Humboldt-Universität zu Berlin, Berlin, Germany
| | - Juri Rappsilber
- Wellcome Trust Centre for Cell Biology, School of Biological Sciences, University of Edinburgh, Edinburgh, UK.,Department of Bioanalytics, Institute of Biotechnology, Technische Universität Berlin, Berlin, Germany
| | - Alessandro Cuomo
- Department of Experimental Oncology, European Institute of Oncology, Milan, Italy
| | - Tiziana Bonaldi
- Department of Experimental Oncology, European Institute of Oncology, Milan, Italy
| | - Ann E Ehrenhofer-Murray
- Department of Molecular Cell Biology, Institut für Biologie, Humboldt-Universität zu Berlin, Berlin, Germany
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26
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Donskyi I, Drüke M, Silberreis K, Lauster D, Ludwig K, Kühne C, Unger W, Böttcher C, Herrmann A, Dernedde J, Adeli M, Haag R. Interactions of Fullerene-Polyglycerol Sulfates at Viral and Cellular Interfaces. Small 2018; 14:e1800189. [PMID: 29575636 DOI: 10.1002/smll.201800189] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/15/2018] [Revised: 02/15/2018] [Indexed: 06/08/2023]
Abstract
Understanding the mechanism of interactions of nanomaterials at biointerfaces is a crucial issue to develop new antimicrobial vectors. In this work, a series of water-soluble fullerene-polyglycerol sulfates (FPS) with different fullerene/polymer weight ratios and varying numbers of polyglycerol sulfate branches are synthesized, characterized, and their interactions with two distinct surfaces displaying proteins involved in target cell recognition are investigated. The combination of polyanionic branches with a solvent exposed variable hydrophobic core in FPS proves to be superior to analogs possessing only one of these features in preventing interaction of vesicular stomatitis virus coat glycoprotein (VSV-G) with baby hamster kidney cells serving as a model of host cell. Interference with L-selectin-ligand binding is dominated by the negative charge, which is studied by two assays: a competitive surface plasmon resonance (SPR)-based inhibition assay and the leukocyte cell (NALM-6) rolling on ligands under flow conditions. Due to possible intrinsic hydrophobic and electrostatic effects of synthesized compounds, pico- to nanomolar half maximal inhibitory concentrations (IC50 ) are achieved. With their highly antiviral and anti-inflammatory properties, together with good biocompatibility, FPS are promising candidates for the future development towards biomedical applications.
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Affiliation(s)
- Ievgen Donskyi
- Institut für Chemie und Biochemie, Freie Universität Berlin, Takustr. 3, 14195, Berlin, Germany
- Division of Surface Analysis and Interfacial Chemistry, BAM - Federal Institute for Material Science and Testing, Unter den Eichen 44-46, 12205, Berlin, Germany
| | - Moritz Drüke
- Department of Biology & IRI Life Sciences, Humboldt-Universität zu Berlin, Invalidenstr. 42, 10115, Berlin, Germany
| | - Kim Silberreis
- Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Institut für Laboratoriumsmedizin, Klinische Chemie und Pathobiochemie, CVK, Augustenburger Platz 1, 13353, Berlin, Germany
| | - Daniel Lauster
- Department of Biology & IRI Life Sciences, Humboldt-Universität zu Berlin, Invalidenstr. 42, 10115, Berlin, Germany
| | - Kai Ludwig
- Forschungszentrum für Elektronenmikroskopie and Core Facility BioSupraMol, Institut für Chemie und Biochemie, Freie Universität Berlin, Fabeckstr. 36a, 14195, Berlin, Germany
| | - Christian Kühne
- Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Institut für Laboratoriumsmedizin, Klinische Chemie und Pathobiochemie, CVK, Augustenburger Platz 1, 13353, Berlin, Germany
| | - Wolfgang Unger
- Division of Surface Analysis and Interfacial Chemistry, BAM - Federal Institute for Material Science and Testing, Unter den Eichen 44-46, 12205, Berlin, Germany
| | - Christoph Böttcher
- Forschungszentrum für Elektronenmikroskopie and Core Facility BioSupraMol, Institut für Chemie und Biochemie, Freie Universität Berlin, Fabeckstr. 36a, 14195, Berlin, Germany
| | - Andreas Herrmann
- Department of Biology & IRI Life Sciences, Humboldt-Universität zu Berlin, Invalidenstr. 42, 10115, Berlin, Germany
| | - Jens Dernedde
- Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Institut für Laboratoriumsmedizin, Klinische Chemie und Pathobiochemie, CVK, Augustenburger Platz 1, 13353, Berlin, Germany
| | - Mohsen Adeli
- Institut für Chemie und Biochemie, Freie Universität Berlin, Takustr. 3, 14195, Berlin, Germany
- Department of Chemistry, Faculty of Science, Lorestan University, 44316-68151, Khorram Abad, Iran
| | - Rainer Haag
- Institut für Chemie und Biochemie, Freie Universität Berlin, Takustr. 3, 14195, Berlin, Germany
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27
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Lauster D, Bandlow V, Liese S, Ludwig K, Stadtmüller M, Klenk S, Sänger S, Böttcher C, Wolff T, Hackenberger C, Seitz O, Netz R, Herrmann A. Tailored Multivalent Biomolecules for an Optimal Interaction with Influenza a Virus Hemagglutinin - From In Silico Modeling to In Vivo Viral Infection Inhibition. Biophys J 2018. [DOI: 10.1016/j.bpj.2017.11.1068] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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28
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Bandlow V, Liese S, Lauster D, Ludwig K, Netz RR, Herrmann A, Seitz O. Spatial Screening of Hemagglutinin on Influenza A Virus Particles: Sialyl-LacNAc Displays on DNA and PEG Scaffolds Reveal the Requirements for Bivalency Enhanced Interactions with Weak Monovalent Binders. J Am Chem Soc 2017; 139:16389-16397. [DOI: 10.1021/jacs.7b09967] [Citation(s) in RCA: 61] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Victor Bandlow
- Institute
of Chemistry, and ‡Institute of Biology, Humboldt-Universität zu Berlin, Berlin 10099, Germany
- Institute of Theoretical Physics, and ∥Institute of Chemistry and Biochemistry, Freie Universität Berlin, Berlin 14195, Germany
| | - Susanne Liese
- Institute
of Chemistry, and ‡Institute of Biology, Humboldt-Universität zu Berlin, Berlin 10099, Germany
- Institute of Theoretical Physics, and ∥Institute of Chemistry and Biochemistry, Freie Universität Berlin, Berlin 14195, Germany
| | - Daniel Lauster
- Institute
of Chemistry, and ‡Institute of Biology, Humboldt-Universität zu Berlin, Berlin 10099, Germany
- Institute of Theoretical Physics, and ∥Institute of Chemistry and Biochemistry, Freie Universität Berlin, Berlin 14195, Germany
| | - Kai Ludwig
- Institute
of Chemistry, and ‡Institute of Biology, Humboldt-Universität zu Berlin, Berlin 10099, Germany
- Institute of Theoretical Physics, and ∥Institute of Chemistry and Biochemistry, Freie Universität Berlin, Berlin 14195, Germany
| | - Roland R. Netz
- Institute
of Chemistry, and ‡Institute of Biology, Humboldt-Universität zu Berlin, Berlin 10099, Germany
- Institute of Theoretical Physics, and ∥Institute of Chemistry and Biochemistry, Freie Universität Berlin, Berlin 14195, Germany
| | - Andreas Herrmann
- Institute
of Chemistry, and ‡Institute of Biology, Humboldt-Universität zu Berlin, Berlin 10099, Germany
- Institute of Theoretical Physics, and ∥Institute of Chemistry and Biochemistry, Freie Universität Berlin, Berlin 14195, Germany
| | - Oliver Seitz
- Institute
of Chemistry, and ‡Institute of Biology, Humboldt-Universität zu Berlin, Berlin 10099, Germany
- Institute of Theoretical Physics, and ∥Institute of Chemistry and Biochemistry, Freie Universität Berlin, Berlin 14195, Germany
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Bhatia S, Lauster D, Bardua M, Ludwig K, Angioletti-Uberti S, Popp N, Hoffmann U, Paulus F, Budt M, Stadtmüller M, Wolff T, Hamann A, Böttcher C, Herrmann A, Haag R. Linear polysialoside outperforms dendritic analogs for inhibition of influenza virus infection in vitro and in vivo. Biomaterials 2017; 138:22-34. [DOI: 10.1016/j.biomaterials.2017.05.028] [Citation(s) in RCA: 68] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2017] [Revised: 05/17/2017] [Accepted: 05/18/2017] [Indexed: 12/23/2022]
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Lauster D, Glanz M, Bardua M, Ludwig K, Hellmund M, Hoffmann U, Hamann A, Böttcher C, Haag R, Hackenberger CPR, Herrmann A. Multivalent Peptide-Nanoparticle Conjugates for Influenza-Virus Inhibition. Angew Chem Int Ed Engl 2017; 56:5931-5936. [PMID: 28444849 PMCID: PMC5485077 DOI: 10.1002/anie.201702005] [Citation(s) in RCA: 75] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2017] [Indexed: 12/20/2022]
Abstract
To inhibit binding of the influenza A virus to the host cell glycocalyx, we generate multivalent peptide-polymer nanoparticles binding with nanomolar affinity to the virus via its spike protein hemagglutinin. The chosen dendritic polyglycerol scaffolds are highly biocompatible and well suited for a multivalent presentation. We could demonstrate in vitro that by increasing the size of the polymer scaffold and adjusting the peptide density, viral infection is drastically reduced. Such a peptide-polymer conjugate qualified also in an in vivo infection scenario. With this study we introduce the first non-carbohydrate-based, covalently linked, multivalent virus inhibitor in the nano- to picomolar range by ensuring low peptide-ligand density on a larger dendritic scaffold.
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Affiliation(s)
- Daniel Lauster
- Institut für Biologie, Molekulare BiophysikIRI Life SciencesHumboldt-Universität zu BerlinInvalidenstrasse 4210115BerlinGermany
| | - Maria Glanz
- Leibniz-Institut für Molekulare Pharmakologie (FMP)Robert-Rössle-Strasse-1013125BerlinGermany
- Humboldt Universität zu BerlinInstitut für ChemieBrook-Taylor-Strasse 212489BerlinGermany
| | - Markus Bardua
- Therapeutische Genregulation und Experimentelle RheumatologieDeutsches Rheuma-Forschungszentrum BerlinCharité 14Universitätsmedizin BerlinCharitéplatz 110117BerlinGermany
| | - Kai Ludwig
- Forschungszentrum für Elektronenmikroskopie and Core Facility BioSupraMolInstitut für Chemie und BiochemieFreie Universität BerlinFabeckstrasse 36a14195BerlinGermany
| | - Markus Hellmund
- Institut für Chemie und Biochemie—Organische ChemieFreie Universität BerlinTakustrasse 314195BerlinGermany
| | - Ute Hoffmann
- Therapeutische Genregulation und Experimentelle RheumatologieDeutsches Rheuma-Forschungszentrum BerlinCharité 14Universitätsmedizin BerlinCharitéplatz 110117BerlinGermany
| | - Alf Hamann
- Therapeutische Genregulation und Experimentelle RheumatologieDeutsches Rheuma-Forschungszentrum BerlinCharité 14Universitätsmedizin BerlinCharitéplatz 110117BerlinGermany
| | - Christoph Böttcher
- Forschungszentrum für Elektronenmikroskopie and Core Facility BioSupraMolInstitut für Chemie und BiochemieFreie Universität BerlinFabeckstrasse 36a14195BerlinGermany
| | - Rainer Haag
- Institut für Chemie und Biochemie—Organische ChemieFreie Universität BerlinTakustrasse 314195BerlinGermany
| | - Christian P. R. Hackenberger
- Leibniz-Institut für Molekulare Pharmakologie (FMP)Robert-Rössle-Strasse-1013125BerlinGermany
- Humboldt Universität zu BerlinInstitut für ChemieBrook-Taylor-Strasse 212489BerlinGermany
| | - Andreas Herrmann
- Institut für Biologie, Molekulare BiophysikIRI Life SciencesHumboldt-Universität zu BerlinInvalidenstrasse 4210115BerlinGermany
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Lauster D, Glanz M, Bardua M, Ludwig K, Hellmund M, Hoffmann U, Hamann A, Böttcher C, Haag R, Hackenberger CPR, Herrmann A. Multivalente Peptid-Nanopartikel-Konjugate zur Hemmung des Influenzavirus. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201702005] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Daniel Lauster
- Institut für Biologie, Molekulare Biophysik; IRI Life Sciences; Humboldt-Universität zu Berlin; Invalidenstr. 42 10115 Berlin Deutschland
| | - Maria Glanz
- Leibniz-Institut für Molekulare Pharmakologie (FMP); Robert-Rössle-Str. 10 13125 Berlin Deutschland
- Humboldt Universität zu Berlin; Institut für Chemie; Brook-Taylor-Str. 2 12489 Berlin Deutschland
| | - Markus Bardua
- Therapeutische Genregulation und Experimentelle Rheumatologie; Deutsches Rheuma-Forschungszentrum Berlin; Charité 14 Universitätsmedizin Berlin; Charitéplatz 1 10117 Berlin Deutschland
| | - Kai Ludwig
- Forschungszentrum für Elektronenmikroskopie und Core Facility BioSupraMol; Institut für Chemie und Biochemie; Freie Universität Berlin; Fabeckstr. 36a 14195 Berlin Deutschland
| | - Markus Hellmund
- Institut für Chemie und Biochemie - Organische Chemie; Freie Universität Berlin; Takustr. 3 14195 Berlin Deutschland
| | - Ute Hoffmann
- Therapeutische Genregulation und Experimentelle Rheumatologie; Deutsches Rheuma-Forschungszentrum Berlin; Charité 14 Universitätsmedizin Berlin; Charitéplatz 1 10117 Berlin Deutschland
| | - Alf Hamann
- Therapeutische Genregulation und Experimentelle Rheumatologie; Deutsches Rheuma-Forschungszentrum Berlin; Charité 14 Universitätsmedizin Berlin; Charitéplatz 1 10117 Berlin Deutschland
| | - Christoph Böttcher
- Forschungszentrum für Elektronenmikroskopie und Core Facility BioSupraMol; Institut für Chemie und Biochemie; Freie Universität Berlin; Fabeckstr. 36a 14195 Berlin Deutschland
| | - Rainer Haag
- Institut für Chemie und Biochemie - Organische Chemie; Freie Universität Berlin; Takustr. 3 14195 Berlin Deutschland
| | - Christian P. R. Hackenberger
- Leibniz-Institut für Molekulare Pharmakologie (FMP); Robert-Rössle-Str. 10 13125 Berlin Deutschland
- Humboldt Universität zu Berlin; Institut für Chemie; Brook-Taylor-Str. 2 12489 Berlin Deutschland
| | - Andreas Herrmann
- Institut für Biologie, Molekulare Biophysik; IRI Life Sciences; Humboldt-Universität zu Berlin; Invalidenstr. 42 10115 Berlin Deutschland
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32
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Memczak H, Lauster D, Kar P, Di Lella S, Volkmer R, Knecht V, Herrmann A, Ehrentreich-Förster E, Bier FF, Stöcklein WFM. Anti-Hemagglutinin Antibody Derived Lead Peptides for Inhibitors of Influenza Virus Binding. PLoS One 2016; 11:e0159074. [PMID: 27415624 PMCID: PMC4944999 DOI: 10.1371/journal.pone.0159074] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2016] [Accepted: 06/27/2016] [Indexed: 12/23/2022] Open
Abstract
Antibodies against spike proteins of influenza are used as a tool for characterization of viruses and therapeutic approaches. However, development, production and quality control of antibodies is expensive and time consuming. To circumvent these difficulties, three peptides were derived from complementarity determining regions of an antibody heavy chain against influenza A spike glycoprotein. Their binding properties were studied experimentally, and by molecular dynamics simulations. Two peptide candidates showed binding to influenza A/Aichi/2/68 H3N2. One of them, termed PeB, with the highest affinity prevented binding to and infection of target cells in the micromolar region without any cytotoxic effect. PeB matches best the conserved receptor binding site of hemagglutinin. PeB bound also to other medical relevant influenza strains, such as human-pathogenic A/California/7/2009 H1N1, and avian-pathogenic A/Mute Swan/Rostock/R901/2006 H7N1. Strategies to improve the affinity and to adapt specificity are discussed and exemplified by a double amino acid substituted peptide, obtained by substitutional analysis. The peptides and their derivatives are of great potential for drug development as well as biosensing.
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Affiliation(s)
- Henry Memczak
- Department of Bioanalytics and Biosensorics, Fraunhofer Institute for Cell Therapy and Immunology, Branch Bioanalytics and Bioprocesses, Potsdam, Germany
- Institute of Biochemistry and Biology, University of Potsdam, Potsdam, Germany
| | - Daniel Lauster
- Department of Biology, Humboldt Universität zu Berlin, Berlin, Germany
| | - Parimal Kar
- Department of Theory and Bio-Systems, Max-Planck-Institute of Colloids and Interfaces, Potsdam, Germany
| | - Santiago Di Lella
- Department of Biology, Humboldt Universität zu Berlin, Berlin, Germany
- Departamento de Química Biológica e IQUIBICEN-CONICET, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Buenos Aires, Argentina
| | | | - Volker Knecht
- Department of Theory and Bio-Systems, Max-Planck-Institute of Colloids and Interfaces, Potsdam, Germany
| | - Andreas Herrmann
- Department of Biology, Humboldt Universität zu Berlin, Berlin, Germany
| | - Eva Ehrentreich-Förster
- Department of Bioanalytics and Biosensorics, Fraunhofer Institute for Cell Therapy and Immunology, Branch Bioanalytics and Bioprocesses, Potsdam, Germany
| | - Frank F. Bier
- Institute of Biochemistry and Biology, University of Potsdam, Potsdam, Germany
- Department of Biosystem Integration and Automation, Fraunhofer Institute for Cell Therapy and Immunology, Branch Bioanalytics and Bioprocesses, Potsdam, Germany
| | - Walter F. M. Stöcklein
- Department of Bioanalytics and Biosensorics, Fraunhofer Institute for Cell Therapy and Immunology, Branch Bioanalytics and Bioprocesses, Potsdam, Germany
- * E-mail:
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Lauster D, Vazquez O, Schwarzer R, Seitz O, Herrmann A. Potential of Proapoptotic Peptides to Induce the Formation of Giant Plasma Membrane Vesicles with Lipid Domains. Chembiochem 2015; 16:1288-92. [DOI: 10.1002/cbic.201500045] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2015] [Indexed: 11/07/2022]
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Lauster D, Pawolski D, Storm J, Ludwig K, Volkmer R, Memczak H, Herrmann A, Bhatia S. Potential of acylated peptides to target the influenza A virus. Beilstein J Org Chem 2015; 11:589-95. [PMID: 26124860 PMCID: PMC4464269 DOI: 10.3762/bjoc.11.65] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2015] [Accepted: 04/24/2015] [Indexed: 01/15/2023] Open
Abstract
For antiviral drug design, especially in the field of influenza virus research, potent multivalent inhibitors raise high expectations for combating epidemics and pandemics. Among a large variety of covalent and non-covalent scaffold systems for a multivalent display of inhibitors, we created a simple supramolecular platform to enhance the antiviral effect of our recently developed antiviral Peptide B (PeB(GF)), preventing binding of influenza virus to the host cell. By conjugating the peptide with stearic acid to create a higher-order structure with a multivalent display, we could significantly enhance the inhibitory effect against the serotypes of both human pathogenic influenza virus A/Aichi/2/1968 H3N2, and avian pathogenic A/FPV/Rostock/34 H7N1 in the hemagglutination inhibition assay. Further, the inhibitory potential of stearylated PeB(GF) (C18-PeB(GF)) was investigated by infection inhibition assays, in which we achieved low micromolar inhibition constants against both viral strains. In addition, we compared C18-PeB(GF) to other published amphiphilic peptide inhibitors, such as the stearylated sugar receptor mimicking peptide (Matsubara et al. 2010), and the "Entry Blocker" (EB) (Jones et al. 2006), with respect to their antiviral activity against infection by Influenza A Virus (IAV) H3N2. However, while this strategy seems at a first glance promising, the native situation is quite different from our experimental model settings. First, we found a strong potential of those peptides to form large amyloid-like supramolecular assemblies. Second, in vivo, the large excess of cell surface membranes provides an unspecific target for the stearylated peptides. We show that acylated peptides insert into the lipid phase of such membranes. Eventually, our study reveals serious limitations of this type of self-assembling IAV inhibitors.
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Affiliation(s)
- Daniel Lauster
- Humboldt-Universität zu Berlin, Institute of Biology, Invalidenstr. 42, 10115 Berlin, Germany
| | - Damian Pawolski
- Humboldt-Universität zu Berlin, Institute of Biology, Invalidenstr. 42, 10115 Berlin, Germany
| | - Julian Storm
- Humboldt-Universität zu Berlin, Institute of Biology, Invalidenstr. 42, 10115 Berlin, Germany
| | - Kai Ludwig
- Freie Universität Berlin, Research Center of Electron Microscopy, Fabeckstr. 36a, 14195 Berlin, Germany
| | - Rudolf Volkmer
- Charité Universitätsmedizin Berlin, Institute of Immunology, Charitéplatz 1, 10117 Berlin, Germany
| | - Henry Memczak
- Fraunhofer Institute for Cell Therapy and Immunology, Am Mühlenberg 13, 14476 Potsdam, Germany
| | - Andreas Herrmann
- Humboldt-Universität zu Berlin, Institute of Biology, Invalidenstr. 42, 10115 Berlin, Germany
| | - Sumati Bhatia
- Freie Universität Berlin, Institute of Chemistry and Biochemistry, Takustr. 3, 14195 Berlin, Germany
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Lauster D, Bandlow V, Memzcak H, Bhatia S, Sieben C, Stöcklein W, Seitz O, Haag R, Herrmann A. Rastering the Influenza Virus Surface with Molecular Rulers and Nanoparticles to Design Optimal Multivalent Inhibitors. Biophys J 2014. [DOI: 10.1016/j.bpj.2013.11.3583] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
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Al-Zeer MA, Al-Younes HM, Lauster D, Abu Lubad M, Meyer TF. Autophagy restricts Chlamydia trachomatis growth in human macrophages via IFNG-inducible guanylate binding proteins. Autophagy 2012; 9:50-62. [PMID: 23086406 DOI: 10.4161/auto.22482] [Citation(s) in RCA: 81] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Interferon γ (IFNG) is a key host response regulator of intracellular pathogen replication, including that of Chlamydia spp The antichlamydial functions of IFNG manifest in a strictly host, cell-type and chlamydial strain dependent manner. It has been recently shown that the IFNG-inducible family of immunity-related GTPases (IRG) proteins plays a key role in the defense against nonhost adapted chlamydia strains in murine epithelial cells. In humans, IFN-inducible guanylate binding proteins (hGBPs) have been shown to potentiate the antichlamydial effect of IFNG; however, how hGBPs regulate this property of IFNG is unknown. In this study, we identified hGBP1/2 as important resistance factors against C. trachomatis infection in IFNG-stimulated human macrophages. Exogenous IFNG reduced chlamydial infectivity by 50 percent in wild-type cells, whereas shRNA hGBP1/2 knockdown macrophages fully supported chlamydial growth in the presence of exogenous IFNG. hGBP1/2 were recruited to bacterial inclusions in human macrophages upon stimulation with IFNG, which triggered rerouting of the typically nonfusogenic bacterial inclusions for lysosomal degradation. Inhibition of lysosomal activity and autophagy impaired the IFNG-mediated elimination of inclusions. Thus, hGBP1/2 are critical effectors of antichlamydial IFNG responses in human macrophages. Through their capacity to remodel classically nonfusogenic chlamydial inclusions and stimulate fusion with autophagosomes, hGBP1/2 disable a major chlamydial virulence mechanism and contribute to IFNG-mediated pathogen clearance.
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Affiliation(s)
- Munir A Al-Zeer
- Department of Molecular Biology, Max Planck Institute for Infection Biology, Berlin, Germany
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