1
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Gritsenko PG, Friedl P. Adaptive adhesion systems mediate glioma cell invasion in complex environments. J Cell Sci 2018; 131:jcs216382. [PMID: 29991514 PMCID: PMC6104823 DOI: 10.1242/jcs.216382] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2018] [Accepted: 07/02/2018] [Indexed: 12/12/2022] Open
Abstract
Diffuse brain invasion by glioma cells prevents effective surgical or molecular-targeted therapy and underlies a detrimental outcome. Migrating glioma cells are guided by complex anatomical brain structures but the exact mechanisms remain poorly defined. To identify adhesion receptor systems and matrix structures supporting glioma cell invasion into brain-like environments we used 2D and 3D organotypic invasion assays in combination with antibody-, peptide- and RNA-based interference. Combined interference with β1 and αV integrins abolished the migration of U-251 and E-98 glioma cells on reconstituted basement membrane; however, invasion into primary brain slices or 3D astrocyte-based scaffolds and migration on astrocyte-deposited matrix was only partly inhibited. Any residual invasion was supported by vascular structures, as well as laminin 511, a central constituent of basement membrane of brain blood vessels. Multi-targeted interference against β1, αV and α6 integrins expressed by U-251 and E-98 cells proved insufficient to achieve complete migration arrest. These data suggest that mechanocoupling by integrins is relatively resistant to antibody- or peptide-based targeting, and cooperates with additional, as yet unidentified adhesion systems in mediating glioma cell invasion in complex brain stroma.
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Affiliation(s)
- Pavlo G Gritsenko
- Department of Cell Biology, Radboud Institute for Molecular Life Sciences, Radboud University Nijmegen Medical Centre, 6525 GA Nijmegen, The Netherlands
| | - Peter Friedl
- Department of Cell Biology, Radboud Institute for Molecular Life Sciences, Radboud University Nijmegen Medical Centre, 6525 GA Nijmegen, The Netherlands
- David H. Koch Center for Applied Research of Genitourinary Cancers, Department of Genitourinary Medical Oncology, The University of Texas, MD Anderson Cancer Center, Houston, 77030 Texas, USA
- Cancer Genomics Centre (CGC.nl), 3584 Utrecht, The Netherlands
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2
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Gentilucci L, Gallo F, Meloni F, Mastandrea M, Del Secco B, De Marco R. Controlling Cyclopeptide Backbone Conformation with β/α-Hybrid Peptide-Heterocycle Scaffolds. European J Org Chem 2016. [DOI: 10.1002/ejoc.201600448] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Luca Gentilucci
- Department of Chemistry “G. Ciamician”; University of Bologna; Via Selmi 2 40126 Bologna Italy
| | - Francesca Gallo
- Department of Chemistry “G. Ciamician”; University of Bologna; Via Selmi 2 40126 Bologna Italy
| | - Fernanda Meloni
- Department of Chemistry “G. Ciamician”; University of Bologna; Via Selmi 2 40126 Bologna Italy
| | - Marco Mastandrea
- Department of Chemistry “G. Ciamician”; University of Bologna; Via Selmi 2 40126 Bologna Italy
| | - Benedetta Del Secco
- Department of Chemistry “G. Ciamician”; University of Bologna; Via Selmi 2 40126 Bologna Italy
| | - Rossella De Marco
- Department of Chemistry “G. Ciamician”; University of Bologna; Via Selmi 2 40126 Bologna Italy
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3
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Mas-Moruno C, Fraioli R, Rechenmacher F, Neubauer S, Kapp TG, Kessler H. αvβ3- or α5β1-Integrin-Selective Peptidomimetics for Surface Coating. Angew Chem Int Ed Engl 2016; 55:7048-67. [PMID: 27258759 DOI: 10.1002/anie.201509782] [Citation(s) in RCA: 84] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2015] [Indexed: 12/21/2022]
Abstract
Engineering biomaterials with integrin-binding activity is a very powerful approach to promote cell adhesion, modulate cell behavior, and induce specific biological responses at the surface level. The aim of this Review is to illustrate the evolution of surface-coating molecules in this field: from peptides and proteins with relatively low integrin-binding activity and receptor selectivity to highly active and selective peptidomimetic ligands. In particular, we will bring into focus the difficult challenge of achieving selectivity between the two closely related integrin subtypes αvβ3 and α5β1. The functionalization of surfaces with such peptidomimetics opens the way for a new generation of highly specific cell-instructive surfaces to dissect the biological role of integrin subtypes and for application in tissue engineering and regenerative medicine.
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Affiliation(s)
- Carlos Mas-Moruno
- Biomaterials, Biomechanics and Tissue Engineering Group, Department of Materials Science and Metallurgical Engineering and Centre for Research in NanoEngineering, Universitat Politècnica de Catalunya (UPC), Diagonal 647, 08028, Barcelona, Spain.
| | - Roberta Fraioli
- Biomaterials, Biomechanics and Tissue Engineering Group, Department of Materials Science and Metallurgical Engineering and Centre for Research in NanoEngineering, Universitat Politècnica de Catalunya (UPC), Diagonal 647, 08028, Barcelona, Spain
| | - Florian Rechenmacher
- Institute for Advanced Study at the Department Chemie und Center of Integrated Protein Science München (CIPSM), Technische Universität München, Lichtenbergstrasse 4, 85748, Garching, Germany
| | - Stefanie Neubauer
- Institute for Advanced Study at the Department Chemie und Center of Integrated Protein Science München (CIPSM), Technische Universität München, Lichtenbergstrasse 4, 85748, Garching, Germany
| | - Tobias G Kapp
- Institute for Advanced Study at the Department Chemie und Center of Integrated Protein Science München (CIPSM), Technische Universität München, Lichtenbergstrasse 4, 85748, Garching, Germany
| | - Horst Kessler
- Institute for Advanced Study at the Department Chemie und Center of Integrated Protein Science München (CIPSM), Technische Universität München, Lichtenbergstrasse 4, 85748, Garching, Germany.
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4
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Mas-Moruno C, Fraioli R, Rechenmacher F, Neubauer S, Kapp TG, Kessler H. αvβ3- oder α5β1-Integrin-selektive Peptidmimetika für die Oberflächenbeschichtung. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201509782] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Carlos Mas-Moruno
- Biomaterials, Biomechanics and Tissue Engineering Group, Department of Materials Science and Metallurgical Engineering and Centre for Research in NanoEngineering; Universitat Politècnica de Catalunya (UPC); Diagonal 647 08028 Barcelona Spanien
| | - Roberta Fraioli
- Biomaterials, Biomechanics and Tissue Engineering Group, Department of Materials Science and Metallurgical Engineering and Centre for Research in NanoEngineering; Universitat Politècnica de Catalunya (UPC); Diagonal 647 08028 Barcelona Spanien
| | - Florian Rechenmacher
- Institute for Advanced Study at the Department Chemie und Center of Integrated Protein Science München (CIPSM); Technische Universität München; Lichtenbergstraße 4 85748 Garching Deutschland
| | - Stefanie Neubauer
- Institute for Advanced Study at the Department Chemie und Center of Integrated Protein Science München (CIPSM); Technische Universität München; Lichtenbergstraße 4 85748 Garching Deutschland
| | - Tobias G. Kapp
- Institute for Advanced Study at the Department Chemie und Center of Integrated Protein Science München (CIPSM); Technische Universität München; Lichtenbergstraße 4 85748 Garching Deutschland
| | - Horst Kessler
- Institute for Advanced Study at the Department Chemie und Center of Integrated Protein Science München (CIPSM); Technische Universität München; Lichtenbergstraße 4 85748 Garching Deutschland
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5
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De Marco R, Tolomelli A, Juaristi E, Gentilucci L. Integrin Ligands with α/β-Hybrid Peptide Structure: Design, Bioactivity, and Conformational Aspects. Med Res Rev 2016; 36:389-424. [PMID: 26777675 DOI: 10.1002/med.21383] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Integrins are cell surface receptors for proteins of the extracellular matrix and plasma-borne adhesive proteins. Their involvement in diverse pathologies prompted medicinal chemists to develop small-molecule antagonists, and very often such molecules are peptidomimetics designed on the basis of the short native ligand-integrin recognition motifs. This review deals with peptidomimetic integrin ligands composed of α- and β-amino acids. The roles exerted by the β-amino acid components are discussed in terms of biological activity, bioavailability, and selectivity. Special attention is paid to the synthetic accessibility and efficiency of conformationally constrained heterocyclic scaffolds incorporating α/β-amino acid span.
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Affiliation(s)
- Rossella De Marco
- Department of Chemistry "G. Ciamician,", University of Bologna, via Selmi 2, 40126, Bologna, Italy
| | - Alessandra Tolomelli
- Department of Chemistry "G. Ciamician,", University of Bologna, via Selmi 2, 40126, Bologna, Italy
| | - Eusebio Juaristi
- Department of Chemistry, Centro de Investigacion y de Estudios Avanzados del IPN, Avenida IPN 2508, esquina Ticoman, Mexico, D.F., 07360, Mexico
| | - Luca Gentilucci
- Department of Chemistry "G. Ciamician,", University of Bologna, via Selmi 2, 40126, Bologna, Italy
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6
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Ma C, Bian T, Yang S, Liu C, Zhang T, Yang J, Li Y, Li J, Yang R, Tan W. Fabrication of Versatile Cyclodextrin-Functionalized Upconversion Luminescence Nanoplatform for Biomedical Imaging. Anal Chem 2014; 86:6508-15. [DOI: 10.1021/ac5010103] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Cheng Ma
- State
Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry
and Chemical Engineering, Hunan University, Changsha, Hunan 410082, China
| | - Tong Bian
- Key
Laboratory of Photochemical Conversion and Optoelectronic Materials,
Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
| | - Sheng Yang
- State
Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry
and Chemical Engineering, Hunan University, Changsha, Hunan 410082, China
| | - Changhui Liu
- State
Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry
and Chemical Engineering, Hunan University, Changsha, Hunan 410082, China
| | - Tierui Zhang
- Key
Laboratory of Photochemical Conversion and Optoelectronic Materials,
Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
| | - Jinfeng Yang
- Tumor
Hospital, Xiangya School of Medicine, Central South University, Changsha, Hunan 410013, China
| | - Yinhui Li
- State
Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry
and Chemical Engineering, Hunan University, Changsha, Hunan 410082, China
| | - Jishan Li
- State
Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry
and Chemical Engineering, Hunan University, Changsha, Hunan 410082, China
| | - Ronghua Yang
- State
Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry
and Chemical Engineering, Hunan University, Changsha, Hunan 410082, China
| | - Weihong Tan
- State
Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry
and Chemical Engineering, Hunan University, Changsha, Hunan 410082, China
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7
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Rechenmacher F, Steigerwald K, Laufer B, Neubauer S, Kapp TG, Li L, Mas-Moruno C, Joner M, Kessler H. The Integrin Ligandc(RGDf(NMe)Nal) Reduces Neointimal Hyperplasia in a Polymer-Free Drug-Eluting Stent System. ChemMedChem 2014; 9:1413-8. [DOI: 10.1002/cmdc.201400078] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2014] [Indexed: 01/28/2023]
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8
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Fabre RM, Okeyo GO, Talham DR. Supported lipid bilayers at skeletonized surfaces for the study of transmembrane proteins. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2012; 28:2835-2841. [PMID: 22229749 DOI: 10.1021/la204485n] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Skeletonized zirconium phosphonate surfaces are used to support planar lipid bilayers and are shown to be viable substrates for studying transmembrane proteins. The skeletonized surfaces provide space between the bilayer and the solid support to enable protein insertion and avoid denaturation. The skeletonized zirconium octadecylphosphonate surfaces were prepared using Langmuir-Blodgett techniques by mixing octadecanol with octadecylphosphonic acid. After zirconation of the transferred monolayer, rinsing the coating with organic solvent removes the octadecanol, leaving holes in the film ranging from ∼50 to ∼500 nm in diameter, depending on the octadecanol content. Upon subsequent deposition of a lipid bilayer, either by vesicle fusion or by Langmuir-Blodgett/Langmuir-Schaefer techniques, the lipid assemblies span the holes providing reservoirs beneath the bilayer. The viability of the supported bilayers as model membranes for transmembrane proteins was demonstrated by examining two approaches for incorporating the proteins. The BK channel protein inserts directly into a preformed bilayer on the skeletonized surface, in contrast to a bilayer on a nonskeletonized film, for which the protein associates only weakly. As a second approach, the integrin α(5)β(1) was reconstituted in lipid vesicles, and its inclusion in supported bilayers on the skeletonized surface was achieved by vesicle fusion. The integrin retains its ability to recognize the extracellular matrix protein fibronectin when supported on the skeletonized film, again in contrast to the response if the bilayer is supported on a nonskeletonized film.
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Affiliation(s)
- Roxane M Fabre
- Department of Chemistry, University of Florida, Gainesville, Florida 32611-7200, United States
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9
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HUVEC cell affinity evaluation and integrin-mediated mechanism study on PHSRN-modified polymer. Colloids Surf B Biointerfaces 2011; 84:6-12. [DOI: 10.1016/j.colsurfb.2010.11.032] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2010] [Revised: 11/20/2010] [Accepted: 11/24/2010] [Indexed: 02/01/2023]
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10
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Frank AO, Otto E, Mas-Moruno C, Schiller HB, Marinelli L, Cosconati S, Bochen A, Vossmeyer D, Zahn G, Stragies R, Novellino E, Kessler H. Conformational control of integrin-subtype selectivity in isoDGR peptide motifs: a biological switch. Angew Chem Int Ed Engl 2011; 49:9278-81. [PMID: 20957712 DOI: 10.1002/anie.201004363] [Citation(s) in RCA: 71] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Andreas O Frank
- Institute for Advanced Study, Technische Universität München, Department Chemie, Lichtenbergstrasse 4, 85747 Garching, Germany
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11
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Frank AO, Otto E, Mas-Moruno C, Schiller HB, Marinelli L, Cosconati S, Bochen A, Vossmeyer D, Zahn G, Stragies R, Novellino E, Kessler H. Konformative Kontrolle über Integrin-Subtyp-Selektivitäten in isoDGR-Peptidmotiven: ein biologischer Schalter. Angew Chem Int Ed Engl 2010. [DOI: 10.1002/ange.201004363] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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12
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The use of RGDGWK-lipopeptide to selectively deliver genes to mouse tumor vasculature and its complexation with p53 to inhibit tumor growth. Biomaterials 2010; 31:1787-97. [DOI: 10.1016/j.biomaterials.2009.10.027] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2009] [Accepted: 10/09/2009] [Indexed: 11/21/2022]
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13
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Cardillo G, Gennari A, Gentilucci L, Mosconi E, Tolomelli A, Troisi S. Synthesis of chiral non-racemic intermediates and Arg-Gly-Asp mimetics by CaLB-catalyzed resolution. ACTA ACUST UNITED AC 2010. [DOI: 10.1016/j.tetasy.2009.12.021] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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14
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Helicobacter pylori type IV secretion apparatus exploits beta1 integrin in a novel RGD-independent manner. PLoS Pathog 2009; 5:e1000684. [PMID: 19997503 PMCID: PMC2779590 DOI: 10.1371/journal.ppat.1000684] [Citation(s) in RCA: 179] [Impact Index Per Article: 11.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2009] [Accepted: 11/05/2009] [Indexed: 12/16/2022] Open
Abstract
Translocation of the Helicobacter pylori (Hp) cytotoxin-associated gene A (CagA) effector protein via the cag-Type IV Secretion System (T4SS) into host cells is a major risk factor for severe gastric diseases, including gastric cancer. However, the mechanism of translocation and the requirements from the host cell for that event are not well understood. The T4SS consists of inner- and outer membrane-spanning Cag protein complexes and a surface-located pilus. Previously an arginine-glycine-aspartate (RGD)-dependent typical integrin/ligand type interaction of CagL with α5β1 integrin was reported to be essential for CagA translocation. Here we report a specific binding of the T4SS-pilus-associated components CagY and the effector protein CagA to the host cell β1 Integrin receptor. Surface plasmon resonance measurements revealed that CagA binding to α5β1 integrin is rather strong (dissociation constant, KD of 0.15 nM), in comparison to the reported RGD-dependent integrin/fibronectin interaction (KD of 15 nM). For CagA translocation the extracellular part of the β1 integrin subunit is necessary, but not its cytoplasmic domain, nor downstream signalling via integrin-linked kinase. A set of β1 integrin-specific monoclonal antibodies directed against various defined β1 integrin epitopes, such as the PSI, the I-like, the EGF or the β-tail domain, were unable to interfere with CagA translocation. However, a specific antibody (9EG7), which stabilises the open active conformation of β1 integrin heterodimers, efficiently blocked CagA translocation. Our data support a novel model in which the cag-T4SS exploits the β1 integrin receptor by an RGD-independent interaction that involves a conformational switch from the open (extended) to the closed (bent) conformation, to initiate effector protein translocation. Integrins are single transmembrane proteins present on almost all types of cells. They are composed of an α and a β subunit, which together form the ligand binding pocket, able to interact with extracellular matrix proteins. The best known binding domain on integrin ligands is the RGD domain. Many bacterial, but also viral pathogens exploit this ligand-binding domain to interact with integrins on the host cell. Helicobacter pylori, a common bacterial pathogen associated with gastric diseases, was recently added to this list. One of H. pylori's most important factors associated with gastric pathologies is the CagA protein. This protein is directly injected into host cells through the Cag Type IV Secretion System (cag-T4SS). Previous studies demonstrated that the cag-T4SS requires integrins for the injection (translocation) of CagA into cells. We provide evidence that three proteins, CagA, CagI and CagY, interact with integrins in an RGD-independent way. Additionally, our data point out that the Cag apparatus needs the physical capacity of a β1 integrin heterodimer to change from an active/extended conformation to a closed/bent conformation. This novel kind of integrin interaction opens a new way in which pathogens can use receptors on cells.
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15
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Jiménez-Soto LF, Kutter S, Sewald X, Ertl C, Weiss E, Kapp U, Rohde M, Pirch T, Jung K, Retta SF, Terradot L, Fischer W, Haas R. Helicobacter pylori type IV secretion apparatus exploits beta1 integrin in a novel RGD-independent manner. PLoS Pathog 2009. [PMID: 19997503 DOI: 10.1371/journal.ppat.1000684.t001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Translocation of the Helicobacter pylori (Hp) cytotoxin-associated gene A (CagA) effector protein via the cag-Type IV Secretion System (T4SS) into host cells is a major risk factor for severe gastric diseases, including gastric cancer. However, the mechanism of translocation and the requirements from the host cell for that event are not well understood. The T4SS consists of inner- and outer membrane-spanning Cag protein complexes and a surface-located pilus. Previously an arginine-glycine-aspartate (RGD)-dependent typical integrin/ligand type interaction of CagL with alpha5beta1 integrin was reported to be essential for CagA translocation. Here we report a specific binding of the T4SS-pilus-associated components CagY and the effector protein CagA to the host cell beta1 Integrin receptor. Surface plasmon resonance measurements revealed that CagA binding to alpha5beta1 integrin is rather strong (dissociation constant, K(D) of 0.15 nM), in comparison to the reported RGD-dependent integrin/fibronectin interaction (K(D) of 15 nM). For CagA translocation the extracellular part of the beta1 integrin subunit is necessary, but not its cytoplasmic domain, nor downstream signalling via integrin-linked kinase. A set of beta1 integrin-specific monoclonal antibodies directed against various defined beta1 integrin epitopes, such as the PSI, the I-like, the EGF or the beta-tail domain, were unable to interfere with CagA translocation. However, a specific antibody (9EG7), which stabilises the open active conformation of beta1 integrin heterodimers, efficiently blocked CagA translocation. Our data support a novel model in which the cag-T4SS exploits the beta1 integrin receptor by an RGD-independent interaction that involves a conformational switch from the open (extended) to the closed (bent) conformation, to initiate effector protein translocation.
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Affiliation(s)
- Luisa F Jiménez-Soto
- Max von Pettenkofer-Institute for Hygiene and Medical Microbiology, Ludwig-Maximilians-Universität, München, Germany
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16
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Gentilucci L, Cardillo G, Spampinato S, Tolomelli A, Squassabia F, De Marco R, Bedini A, Baiula M, Belvisi L, Civera M. Antiangiogenic Effect of Dual/Selective α5β1/αvβ3 Integrin Antagonists Designed on Partially Modified Retro-Inverso Cyclotetrapeptide Mimetics. J Med Chem 2009; 53:106-18. [DOI: 10.1021/jm9013532] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Luca Gentilucci
- Department of Chemistry “G. Ciamician”, Università degli Studi di Bologna, via Selmi 2, 40126 Bologna, Italy
| | - Giuliana Cardillo
- Department of Chemistry “G. Ciamician”, Università degli Studi di Bologna, via Selmi 2, 40126 Bologna, Italy
| | - Santi Spampinato
- Department of Pharmacology, Università degli Studi di Bologna, via Irnerio 48, 40126 Bologna, Italy
| | - Alessandra Tolomelli
- Department of Chemistry “G. Ciamician”, Università degli Studi di Bologna, via Selmi 2, 40126 Bologna, Italy
| | | | - Rossella De Marco
- Department of Chemistry “G. Ciamician”, Università degli Studi di Bologna, via Selmi 2, 40126 Bologna, Italy
| | - Andrea Bedini
- Department of Pharmacology, Università degli Studi di Bologna, via Irnerio 48, 40126 Bologna, Italy
| | - Monica Baiula
- Department of Pharmacology, Università degli Studi di Bologna, via Irnerio 48, 40126 Bologna, Italy
| | - Laura Belvisi
- Department of Organic and Industrial Chemistry and CISI, University of Milano, Via Venezian 21, Milano, Italy
| | - Monica Civera
- Department of Organic and Industrial Chemistry and CISI, University of Milano, Via Venezian 21, Milano, Italy
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17
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Pramanik D, Majeti BK, Mondal G, Karmali PP, Sistla R, Ramprasad OG, Srinivas G, Pande G, Chaudhuri A. Lipopeptide with a RGDK tetrapeptide sequence can selectively target genes to proangiogenic alpha5beta1 integrin receptor and mouse tumor vasculature. J Med Chem 2009; 51:7298-302. [PMID: 18956861 DOI: 10.1021/jm800915y] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Integrins, the major class of alphabeta heterodimeric transmembrane glycoprotein receptors, play crucial roles in mediating tumor angiogenesis. Genetic ablation experiments combined with use of antibodies/peptide ligands for blocking either alpha(5) or beta(1) integrins have convincingly demonstrated alpha(5)beta(1) integrin to be unquestionably proangiogenic among the 24 known integrin receptors. Herein, we report on a novel RGDK-lipopeptide 1 that targets selectively alpha(5)beta(1) integrin and is capable of targeting genes to mouse tumor vasculatures.
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Affiliation(s)
- Dipankar Pramanik
- Division of Lipid Science and Technology, Pharmacology Division, Indian Institute of Chemical Technology, Hyderabad 500607, India
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18
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Wobbe L, Zimmermann D, Wißbrock M, Urman S, Sewald K, Malešević M, Sewald N. Integrin α5β1: a new purification strategy based on immobilized peptides. ACTA ACUST UNITED AC 2008. [DOI: 10.1111/j.1747-0285.2006.00359.x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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19
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Seebach D, Dubost E, Mathad R, Jaun B, Limbach M, Löweneck M, Flögel O, Gardiner J, Capone S, Beck A, Widmer H, Langenegger D, Monna D, Hoyer D. New Open-Chain and Cyclic Tetrapeptides, Consisting ofα-,β2-, andβ3-Amino-Acid Residues, as Somatostatin Mimics - A Survey. Helv Chim Acta 2008. [DOI: 10.1002/hlca.200890190] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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20
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Salvati M, Cordero FM, Pisaneschi F, Melani F, Gratteri P, Cini N, Bottoncetti A, Brandi A. Synthesis, SAR and in vitro evaluation of new cyclic Arg-Gly-Asp pseudopentapeptides containing a s-cis peptide bond as integrin αvβ3 and αvβ5 ligands. Bioorg Med Chem 2008; 16:4262-71. [DOI: 10.1016/j.bmc.2008.02.080] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2007] [Revised: 02/19/2008] [Accepted: 02/26/2008] [Indexed: 11/26/2022]
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21
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Malešević M, Jahreis G, Wawra S, Fischer G, Lücke C. Conformational Consequences of Regio- and Stereoselective Disulfide Bridge Oxidation in a Cyclic Peptide. Chembiochem 2008; 9:46-9. [DOI: 10.1002/cbic.200700529] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Benfatti F, Cardillo G, Fabbroni S, Galzerano P, Gentilucci L, Juris R, Tolomelli A, Baiula M, Spartà A, Spampinato S. Synthesis and biological evaluation of non-peptide αvβ3/α5β1 integrin dual antagonists containing 5,6-dihydropyridin-2-one scaffolds. Bioorg Med Chem 2007; 15:7380-90. [PMID: 17869121 DOI: 10.1016/j.bmc.2007.07.049] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2007] [Revised: 07/16/2007] [Accepted: 07/25/2007] [Indexed: 11/20/2022]
Abstract
Small constrained non-peptidic molecules consisting of a polyfunctionalized rigid core, carrying appendages corresponding to arginine and aspartic acid side chains, have been recently reported to be promising for drug development. In this work, the 5,6-dihydropyridin-2-one was envisaged as a scaffold to turn into potential integrin ligands, introducing a carboxylic acid and a basic appendage. The synthesis and the antiadhesion activity of a small library of peptidomimetics capable to recognize alpha(v)beta(3) and alpha(5)beta(1) integrins has been herein reported.
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Affiliation(s)
- Fides Benfatti
- Dipartimento di Chimica "G. Ciamician", Università di Bologna, Via Selmi 2, 40126 Bologna, Italy
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23
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Kwok T, Zabler D, Urman S, Rohde M, Hartig R, Wessler S, Misselwitz R, Berger J, Sewald N, König W, Backert S. Helicobacter exploits integrin for type IV secretion and kinase activation. Nature 2007; 449:862-6. [PMID: 17943123 DOI: 10.1038/nature06187] [Citation(s) in RCA: 493] [Impact Index Per Article: 29.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2007] [Accepted: 08/21/2007] [Indexed: 02/06/2023]
Abstract
Integrins are important mammalian receptors involved in normal cellular functions as well as pathogenesis of chronic inflammation and cancer. We propose that integrins are exploited by the gastric pathogen and type-1 carcinogen Helicobacter pylori for injection of the bacterial oncoprotein cytotoxin-associated gene A (CagA) into gastric epithelial cells. Virulent H. pylori express a type-IV secretion pilus that injects CagA into the host cell; CagA then becomes tyrosine-phosphorylated by Src family kinases. However, the identity of the host cell receptor involved in this process has remained unknown. Here we show that the H. pylori CagL protein is a specialized adhesin that is targeted to the pilus surface, where it binds to and activates integrin alpha5beta1 receptor on gastric epithelial cells through an arginine-glycine-aspartate motif. This interaction triggers CagA delivery into target cells as well as activation of focal adhesion kinase and Src. Our findings provide insights into the role of integrins in H.-pylori-induced pathogenesis. CagL may be exploited as a new molecular tool for our further understanding of integrin signalling.
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Affiliation(s)
- Terry Kwok
- Department of Medical Microbiology, Otto von Guericke University, Leipziger Strasse 44, D-39120 Magdeburg, Germany
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24
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Jost M, Weigelt S, Huber T, Majer Z, Greie JC, Altendorf K, Sewald N. Synthesis, and structural and biological studies of efrapeptin C analogues. Chem Biodivers 2007; 4:1170-82. [PMID: 17589859 DOI: 10.1002/cbdv.200790103] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
A series of analogues of efrapeptin C (1), with variations in the central tripeptide epitope (positions 6-8), were prepared by a combination of solid- and solution-phase peptide syntheses. The conformations of the modified compounds 2-6 were investigated by circular-dichroism (CD) spectroscopy to differentiate between 3(10)- and alpha-helical secondary structures. The inhibitory activities of the new compounds towards F(1)-ATPase from E. coli were determined. The modified congeners 3-5 were less active by one order of magnitude compared to 1 (K(i) 10 microM), and 6 was completely inactive. Our experiments demonstrate that the flexible, central tripeptide epitope, comprising positions 6-8 in 1, is crucial for molecular recognition, even slight sequence modifications being hardly tolerated.
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Affiliation(s)
- Micha Jost
- Department of Chemistry, Organic and Bioorganic Chemistry, Bielefeld University, Bielefeld, Germany
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25
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Heckmann D, Meyer A, Marinelli L, Zahn G, Stragies R, Kessler H. Probing integrin selectivity: rational design of highly active and selective ligands for the alpha5beta1 and alphavbeta3 integrin receptor. Angew Chem Int Ed Engl 2007; 46:3571-4. [PMID: 17394271 DOI: 10.1002/anie.200700008] [Citation(s) in RCA: 86] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Dominik Heckmann
- Department Chemie, TU München, Lichtenbergstrasse 4, 85747 Garching, Germany
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26
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Urman S, Gaus K, Yang Y, Strijowski U, Sewald N, De Pol S, Reiser O. Die gerüststarre Aminosäure β-Acc verleiht Integrinliganden Aktivität und Selektivität. Angew Chem Int Ed Engl 2007. [DOI: 10.1002/ange.200605248] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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27
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Urman S, Gaus K, Yang Y, Strijowski U, Sewald N, De Pol S, Reiser O. The Constrained Amino Acid β-Acc Confers Potency and Selectivity to Integrin Ligands. Angew Chem Int Ed Engl 2007; 46:3976-8. [PMID: 17394270 DOI: 10.1002/anie.200605248] [Citation(s) in RCA: 67] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Sylwia Urman
- Fakultät für Chemie, Organische und Bioorganische Chemie, Universität Bielefeld, Universitätsstrasse 25, 33615 Bielefeld, Germany
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28
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Heckmann D, Meyer A, Marinelli L, Zahn G, Stragies R, Kessler H. Rationales Design von hoch aktiven und selektiven Liganden für α5β1- und αvβ3-Integrine. Angew Chem Int Ed Engl 2007. [DOI: 10.1002/ange.200700008] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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29
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Spatial Screening for the Identification of the Bioactive Conformation of Integrin Ligands. Top Curr Chem (Cham) 2006. [DOI: 10.1007/128_052] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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30
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Abstract
We identified 1113 articles (103 reviews, 1010 primary research articles) published in 2005 that describe experiments performed using commercially available optical biosensors. While this number of publications is impressive, we find that the quality of the biosensor work in these articles is often pretty poor. It is a little disappointing that there appears to be only a small set of researchers who know how to properly perform, analyze, and present biosensor data. To help focus the field, we spotlight work published by 10 research groups that exemplify the quality of data one should expect to see from a biosensor experiment. Also, in an effort to raise awareness of the common problems in the biosensor field, we provide side-by-side examples of good and bad data sets from the 2005 literature.
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Affiliation(s)
- Rebecca L Rich
- Center for Biomolecular Interaction Analysis, University of Utah, Salt Lake City, UT 84132, USA
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