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Palmioli A, Sperandeo P, Bertuzzi S, Polissi A, Airoldi C. On-cell saturation transfer difference NMR for the identification of FimH ligands and inhibitors. Bioorg Chem 2021; 112:104876. [PMID: 33845337 DOI: 10.1016/j.bioorg.2021.104876] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2021] [Revised: 03/14/2021] [Accepted: 03/25/2021] [Indexed: 12/23/2022]
Abstract
We describe the development of an on-cell NMR method for the rapid screening of FimH ligands and the structural identification of ligand binding epitopes. FimH is a mannose-binding bacterial adhesin expressed at the apical end of type 1 pili of uropathogenic bacterial strains and responsible for their d-mannose sensitive adhesion to host mammalian epithelial cells. Because of these properties, FimH is a key virulence factor and an attractive therapeutic target for urinary tract infection. We prepared synthetic d-mannose decorated dendrimers, we tested their ability to prevent the FimH-mediated yeast agglutination, and thus we used the compounds showing the best inhibitory activity as models of FimH multivalent ligands to set up our NMR methodology. Our experimental protocol, based on on-cell STD NMR techniques, is a suitable tool for the screening and the epitope mapping of FimH ligands aimed at the development of new antiadhesive and diagnostic tools against urinary tract infection pathogens. Notably, the study is carried out in a physiological environment, i.e. at the surface of living pathogen cells expressing FimH.
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Affiliation(s)
- Alessandro Palmioli
- BioOrg NMR Lab, Department of Biotechnology and Biosciences, University of Milano-Bicocca, P.zza della Scienza, 2, 20126 Milan, Italy.
| | - Paola Sperandeo
- Department of Pharmacological and Biomolecular Sciences, University of Milano, Via Balzaretti, 9/11/13, 20133 Milano, Italy
| | - Sara Bertuzzi
- BioOrg NMR Lab, Department of Biotechnology and Biosciences, University of Milano-Bicocca, P.zza della Scienza, 2, 20126 Milan, Italy; Chemical Glycobiology Lab, Center for Cooperative Research in Biosciences (CIC-bioGUNE), 48160 Derio, Spain
| | - Alessandra Polissi
- Department of Pharmacological and Biomolecular Sciences, University of Milano, Via Balzaretti, 9/11/13, 20133 Milano, Italy
| | - Cristina Airoldi
- BioOrg NMR Lab, Department of Biotechnology and Biosciences, University of Milano-Bicocca, P.zza della Scienza, 2, 20126 Milan, Italy.
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2
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Dussouy C, Téletchéa S, Lambert A, Charlier C, Botez I, De Ceuninck F, Grandjean C. Access to Galectin-3 Inhibitors from Chemoenzymatic Synthons. J Org Chem 2020; 85:16099-16114. [PMID: 33200927 DOI: 10.1021/acs.joc.0c01927] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
Chemoenzymatic strategies are useful for providing both regio- and stereoselective access to bioactive oligosaccharides. We show herein that a glycosynthase mutant of a Thermus thermophilus α-glycosidase can react with unnatural glycosides such as 6-azido-6-deoxy-d-glucose/glucosamine to lead to β-d-galactopyranosyl-(1→3)-d-glucopyranoside or β-d-galactopyranosyl-(1→3)-2-acetamido-2-deoxy-d-glucopyranoside derivatives bearing a unique azide function. Taking advantage of the orthogonality between the azide and the hydroxyl functional groups, the former was next selectively reacted to give rise to a library of galectin-3 inhibitors. Combining enzyme substrate promiscuity and bioorthogonality thus appears as a powerful strategy to rapidly access to sugar-based ligands.
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Affiliation(s)
- Christophe Dussouy
- Université de Nantes, CNRS, Unité Fonctionnalité et Ingénierie des Protéines (UFIP), UMR 628, F-44000 Nantes, France
| | - Stéphane Téletchéa
- Université de Nantes, CNRS, Unité Fonctionnalité et Ingénierie des Protéines (UFIP), UMR 628, F-44000 Nantes, France
| | - Annie Lambert
- Université de Nantes, CNRS, Unité Fonctionnalité et Ingénierie des Protéines (UFIP), UMR 628, F-44000 Nantes, France
| | - Cathy Charlier
- Université de Nantes, CNRS, Unité Fonctionnalité et Ingénierie des Protéines (UFIP), UMR 628, F-44000 Nantes, France.,Université de Nantes, CNRS, Plateforme IMPACT, UMR 6286, F-44000 Nantes, France
| | - Iuliana Botez
- Institut de Recherches Servier, Croissy-sur-Seine, 78290 Croissy, France
| | | | - Cyrille Grandjean
- Université de Nantes, CNRS, Unité Fonctionnalité et Ingénierie des Protéines (UFIP), UMR 628, F-44000 Nantes, France
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On-cell saturation transfer difference NMR study of Bombesin binding to GRP receptor. Bioorg Chem 2020; 99:103861. [PMID: 32339813 DOI: 10.1016/j.bioorg.2020.103861] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2019] [Revised: 04/15/2020] [Accepted: 04/16/2020] [Indexed: 01/15/2023]
Abstract
We report the NMR characterization of the molecular interaction between Gastrin Releasing Peptide Receptor (GRP-R) and its natural ligand bombesin (BN). GRP-R is a transmembrane G-protein coupled receptor promoting the stimulation of cancer cell proliferation; in addition, being overexpressed on the surface of different human cancer cell lines, it is ideal for the development of new strategies for the selective targeted delivery of anticancer drugs and diagnostic devices to tumor cells. However, the design of new GRP-R binders requires structural information on receptor interaction with its natural ligands. The experimental protocol presented herein, based on on-cell STD NMR techniques, is a powerful tool for the screening and the epitope mapping of GRP-R ligands aimed at the development of new anticancer and diagnostic tools. Notably, the study can be carried out in a physiological environment, at the surface of tumoral cells overespressing GRP-R. Moreover, to the best of our knowledge, this is the first example of an NMR experiment able to detect and investigate the structural determinants of BN/GRP-R interaction.
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Kettle JG, Cassar DJ. Covalent inhibitors of the GTPase KRAS G12C: a review of the patent literature. Expert Opin Ther Pat 2020; 30:103-120. [PMID: 31913776 DOI: 10.1080/13543776.2020.1709443] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Introduction: KRAS is one of the most important oncology drug targets, playing a pivotal role in the initiation and progression of many human tumors. It has long been held undruggable due to many previously failed attempts to both directly and indirectly target this challenging GTPase protein family.Areas covered: This review covers patent applications claiming inhibitors of the mutant GTPase KRASG12C that act via covalent modification of cysteine at codon 12 in the period of 2014 to the present. A total of 37 PCT applications from 9 applicants are evaluated, with the discussion organized alphabetically by assignee name.Expert opinion: The last 5 years have seen an explosion in interest around this important target with many companies aiming to capitalize on the breakthrough discovery of covalent allosteric inhibitors of the glycine to cysteine mutant form of the enzyme. The first agents from this effort have now entered clinical trials and preliminary data are encouraging with responses seen in both lung adenocarcinoma and colorectal cancer patients.
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Palmioli A, Sperandeo P, Polissi A, Airoldi C. Targeting Bacterial Biofilm: A New LecA Multivalent Ligand with Inhibitory Activity. Chembiochem 2019; 20:2911-2915. [DOI: 10.1002/cbic.201900383] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2019] [Indexed: 12/24/2022]
Affiliation(s)
- Alessandro Palmioli
- Department of Biotechnology and BiosciencesUniversity of Milano–Bicocca Piazza della Scienza 2 20126 Milano Italy
| | - Paola Sperandeo
- Department of Pharmacological and Biomolecular SciencesUniversity of Milano Via Balzaretti, 9/11/13 20133 Milano Italy
| | - Alessandra Polissi
- Department of Pharmacological and Biomolecular SciencesUniversity of Milano Via Balzaretti, 9/11/13 20133 Milano Italy
| | - Cristina Airoldi
- Department of Biotechnology and BiosciencesUniversity of Milano–Bicocca Piazza della Scienza 2 20126 Milano Italy
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Palmioli A, Ciaramelli C, Tisi R, Spinelli M, De Sanctis G, Sacco E, Airoldi C. Natural Compounds in Cancer Prevention: Effects of Coffee Extracts and Their Main Polyphenolic Component, 5-O-Caffeoylquinic Acid, on Oncogenic Ras Proteins. Chem Asian J 2017; 12:2457-2466. [PMID: 28719146 DOI: 10.1002/asia.201700844] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2017] [Revised: 07/17/2017] [Indexed: 01/08/2023]
Abstract
Recent epidemiological studies have demonstrated that the consumption of healthy foods that are particularly rich in polyphenols might reduce the incidence of cancer and neurodegenerative diseases. In particular, chlorogenic acids (CGAs) occur ubiquitously in food and represent the most abundant polyphenols in the human diet. A number of beneficial biological effects of CGAs, such as anti-inflammatory activity, anti-carcinogenic activity, and protection against neurodegenerative diseases, have been reported. However, the molecular mechanisms at the base of these biological activities have not yet been investigated in depth. By combining NMR spectroscopy, molecular docking, surface plasmon resonance and ex vivo assays of the Ras-dependent breast cancer cell line MDA-MB-231, we contribute to the elucidation of the molecular basis of the activity of CGAs and natural extracts from green and roasted coffee beans as chemoprotective dietary supplements.
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Affiliation(s)
- Alessandro Palmioli
- Department of Biotechnology and Biosciences, Università degli Studi di Milano-Bicocca, Piazza della Scienza 2, 20126, Milan, Italy
| | - Carlotta Ciaramelli
- Department of Biotechnology and Biosciences, Università degli Studi di Milano-Bicocca, Piazza della Scienza 2, 20126, Milan, Italy
| | - Renata Tisi
- Department of Biotechnology and Biosciences, Università degli Studi di Milano-Bicocca, Piazza della Scienza 2, 20126, Milan, Italy.,NeuroMI Milan Center for Neuroscience, University of Milano-Bicocca, 20126, Milano, Italy
| | - Michela Spinelli
- Department of Biotechnology and Biosciences, Università degli Studi di Milano-Bicocca, Piazza della Scienza 2, 20126, Milan, Italy
| | - Gaia De Sanctis
- Department of Biotechnology and Biosciences, Università degli Studi di Milano-Bicocca, Piazza della Scienza 2, 20126, Milan, Italy
| | - Elena Sacco
- Department of Biotechnology and Biosciences, Università degli Studi di Milano-Bicocca, Piazza della Scienza 2, 20126, Milan, Italy.,SysBio Center of Systems Biology, Piazza della Scienza 2, 20126, Milan, Italy
| | - Cristina Airoldi
- Department of Biotechnology and Biosciences, Università degli Studi di Milano-Bicocca, Piazza della Scienza 2, 20126, Milan, Italy.,NeuroMI Milan Center for Neuroscience, University of Milano-Bicocca, 20126, Milano, Italy.,SysBio Center of Systems Biology, Piazza della Scienza 2, 20126, Milan, Italy
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Asati V, Mahapatra DK, Bharti SK. K-Ras and its inhibitors towards personalized cancer treatment: Pharmacological and structural perspectives. Eur J Med Chem 2017; 125:299-314. [DOI: 10.1016/j.ejmech.2016.09.049] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2016] [Revised: 09/14/2016] [Accepted: 09/15/2016] [Indexed: 02/07/2023]
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Ferri E, Galimberti A, Casiraghi M, Airoldi C, Ciaramelli C, Palmioli A, Mezzasalma V, Bruni I, Labra M. Towards a Universal Approach Based on Omics Technologies for the Quality Control of Food. BIOMED RESEARCH INTERNATIONAL 2015; 2015:365794. [PMID: 26783518 PMCID: PMC4691458 DOI: 10.1155/2015/365794] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/29/2015] [Accepted: 11/19/2015] [Indexed: 12/03/2022]
Abstract
In the last decades, food science has greatly developed, turning from the consideration of food as mere source of energy to a growing awareness on its importance for health and particularly in reducing the risk of diseases. Such vision led to an increasing attention towards the origin and quality of raw materials as well as their derived food products. The continuous advance in molecular biology allowed setting up efficient and universal omics tools to unequivocally identify the origin of food items and their traceability. In this review, we considered the application of a genomics approach known as DNA barcoding in characterizing the composition of foodstuffs and its traceability along the food supply chain. Moreover, metabolomics analytical strategies based on Nuclear Magnetic Resonance (NMR) and Mass Spectroscopy (MS) were discussed as they also work well in evaluating food quality. The combination of both approaches allows us to define a sort of molecular labelling of food that is easily understandable by the operators involved in the food sector: producers, distributors, and consumers. Current technologies based on digital information systems such as web platforms and smartphone apps can facilitate the adoption of such molecular labelling.
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Affiliation(s)
- Emanuele Ferri
- FEM2 Ambiente s.r.l., P.za della Scienza 2, 20126 Milan, Italy
| | - Andrea Galimberti
- ZooPlantLab, Department of Biotechnology and Biosciences, University of Milano-Bicocca, P.za della Scienza 2, 20126 Milan, Italy
| | - Maurizio Casiraghi
- ZooPlantLab, Department of Biotechnology and Biosciences, University of Milano-Bicocca, P.za della Scienza 2, 20126 Milan, Italy
| | - Cristina Airoldi
- BioNMR Lab, Department of Biotechnology and Biosciences, University of Milano-Bicocca, P.za della Scienza 2, 20126 Milan, Italy
| | - Carlotta Ciaramelli
- BioNMR Lab, Department of Biotechnology and Biosciences, University of Milano-Bicocca, P.za della Scienza 2, 20126 Milan, Italy
| | - Alessandro Palmioli
- FEM2 Ambiente s.r.l., P.za della Scienza 2, 20126 Milan, Italy
- BioNMR Lab, Department of Biotechnology and Biosciences, University of Milano-Bicocca, P.za della Scienza 2, 20126 Milan, Italy
| | - Valerio Mezzasalma
- ZooPlantLab, Department of Biotechnology and Biosciences, University of Milano-Bicocca, P.za della Scienza 2, 20126 Milan, Italy
| | - Ilaria Bruni
- ZooPlantLab, Department of Biotechnology and Biosciences, University of Milano-Bicocca, P.za della Scienza 2, 20126 Milan, Italy
| | - Massimo Labra
- ZooPlantLab, Department of Biotechnology and Biosciences, University of Milano-Bicocca, P.za della Scienza 2, 20126 Milan, Italy
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Sironi E, Colombo L, Lompo A, Messa M, Bonanomi M, Regonesi ME, Salmona M, Airoldi C. Natural Compounds against Neurodegenerative Diseases: Molecular Characterization of the Interaction of Catechins from Green Tea with Aβ1–42, PrP106–126, and Ataxin‐3 Oligomers. Chemistry 2014; 20:13793-800. [DOI: 10.1002/chem.201403188] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2014] [Indexed: 12/31/2022]
Affiliation(s)
- Erika Sironi
- Department of Biotechnology and Biosciences University of Milano‐Bicocca, P.zza della Scienza, 2, 20126, Milano (Italy), Fax: (+39) 02‐6448‐3565
| | - Laura Colombo
- Department Biochemistry and Molecular Pharmacology, IRCCS‐Istituto di Ricerche Farmacologiche “Mario Negri”, Via Giuseppe La Masa, 19 20156 Milano (Italy)
| | - Angela Lompo
- Department of Biotechnology and Biosciences University of Milano‐Bicocca, P.zza della Scienza, 2, 20126, Milano (Italy), Fax: (+39) 02‐6448‐3565
| | - Massimo Messa
- Department Biochemistry and Molecular Pharmacology, IRCCS‐Istituto di Ricerche Farmacologiche “Mario Negri”, Via Giuseppe La Masa, 19 20156 Milano (Italy)
| | - Marcella Bonanomi
- Department of Biotechnology and Biosciences University of Milano‐Bicocca, P.zza della Scienza, 2, 20126, Milano (Italy), Fax: (+39) 02‐6448‐3565
| | - Maria Elena Regonesi
- Department of Statistics and Quantitative Methods, University of Milano‐Bicocca, Via Bicocca degli Arcimboldi, 8, 20126, Milano (Italy)
| | - Mario Salmona
- Department Biochemistry and Molecular Pharmacology, IRCCS‐Istituto di Ricerche Farmacologiche “Mario Negri”, Via Giuseppe La Masa, 19 20156 Milano (Italy)
| | - Cristina Airoldi
- Department of Biotechnology and Biosciences University of Milano‐Bicocca, P.zza della Scienza, 2, 20126, Milano (Italy), Fax: (+39) 02‐6448‐3565
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10
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Merlo S, Sironi E, Colombo L, Cardona F, Martorana AM, Salmona M, La Ferla B, Airoldi C. Cis-Glyco-Fused Benzopyran Derivatives as Hit Compounds for the Development of Therapeutic and Diagnostic Tools against Neurodegenerative Diseases. Chempluschem 2014. [DOI: 10.1002/cplu.201400035] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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11
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Fluorescent amyloid β-peptide ligand derivatives as potential diagnostic tools for Alzheimer’s disease. PURE APPL CHEM 2013. [DOI: 10.1351/pac-con-12-11-07] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Aβ-peptide ligands based on a cis-glycofused benzopyran structure have been fluorescently labeled using coumarine derivatives. Among the synthesized compounds, two conserved their binding ability to β-amyloid peptides, as shown by NMR experiments. Moreover, exploiting its fluorescent property, it was demonstrated that one of such compounds was able to cross an in vitro model of blood–brain barrier (BBB) and to stain Aβ‑deposits.
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12
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Sugar-Based Inhibitors of Ras Activation. ACTA ACUST UNITED AC 2013. [DOI: 10.1016/b978-0-12-416749-0.00005-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register]
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13
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Airoldi C, Giovannardi S, La Ferla B, Jiménez-Barbero J, Nicotra F. Saturation Transfer Difference NMR Experiments of Membrane Proteins in Living Cells under HR-MAS Conditions: The Interaction of the SGLT1 Co-transporter with Its Ligands. Chemistry 2011; 17:13395-9. [DOI: 10.1002/chem.201102181] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2011] [Indexed: 12/13/2022]
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Sacco E, Metalli D, Spinelli M, Manzoni R, Samalikova M, Grandori R, Morrione A, Traversa S, Alberghina L, Vanoni M. Novel RasGRF1-derived Tat-fused peptides inhibiting Ras-dependent proliferation and migration in mouse and human cancer cells. Biotechnol Adv 2011; 30:233-43. [PMID: 21620943 DOI: 10.1016/j.biotechadv.2011.05.011] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2011] [Accepted: 05/09/2011] [Indexed: 10/18/2022]
Abstract
Mutations of RAS genes are critical events in the pathogenesis of different human tumors and Ras proteins represent a major clinical target for the development of specific inhibitors to use as anticancer agents. Here we present RasGRF1-derived peptides displaying both in vitro and in vivo Ras inhibitory properties. These peptides were designed on the basis of the down-sizing of dominant negative full-length RasGRF1 mutants. The over-expression of these peptides can revert the phenotype of K-RAS transformed mouse fibroblasts to wild type, as monitored by several independent biological readouts, including Ras-GTP intracellular levels, ERK activity, morphology, proliferative potential and anchorage independent growth. Fusion of the RasGRF1-derived peptides with the Tat protein transduction domain allows their uptake into mammalian cells. Chemically synthesized Tat-fused peptides, reduced to as small as 30 residues on the basis of structural constraints, retain Ras inhibitory activity. These small peptides interfere in vitro with the GEF catalyzed nucleotide dissociation and exchange on Ras, reduce cell proliferation of K-RAS transformed mouse fibroblasts, and strongly reduce Ras-dependent IGF-I-induced migration and invasion of human bladder cancer cells. These results support the use of RasGRF1-derived peptides as model compounds for the development of Ras inhibitory anticancer agents.
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Affiliation(s)
- Elena Sacco
- Department of Biotechnology and Biosciences, University of Milano-Bicocca, Milano, Italy.
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15
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Airoldi C, Cardona F, Sironi E, Colombo L, Salmona M, Silva A, Nicotra F, La Ferla B. cis-Glyco-fused benzopyran compounds as new amyloid-β peptide ligands. Chem Commun (Camb) 2011; 47:10266-8. [DOI: 10.1039/c1cc13046c] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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16
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Sacco E, Abraham SJ, Palmioli A, Damore G, Bargna A, Mazzoleni E, Gaponenko V, Vanoni M, Peri F. Binding properties and biological characterization of new sugar-derived Ras ligands. MEDCHEMCOMM 2011. [DOI: 10.1039/c0md00264j] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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17
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Palmioli A, Sacco E, Airoldi C, Di Nicolantonio F, D’Urzo A, Shirasawa S, Sasazuki T, Di Domizio A, De Gioia L, Martegani E, Bardelli A, Peri F, Vanoni M. Selective cytotoxicity of a bicyclic Ras inhibitor in cancer cells expressing K-RasG13D. Biochem Biophys Res Commun 2009; 386:593-7. [DOI: 10.1016/j.bbrc.2009.06.069] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2009] [Accepted: 06/13/2009] [Indexed: 11/26/2022]
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18
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Palmioli A, Sacco E, Abraham S, Thomas CJ, Di Domizio A, De Gioia L, Gaponenko V, Vanoni M, Peri F. First experimental identification of Ras-inhibitor binding interface using a water-soluble Ras ligand. Bioorg Med Chem Lett 2009; 19:4217-22. [PMID: 19515561 DOI: 10.1016/j.bmcl.2009.05.107] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2009] [Revised: 05/26/2009] [Accepted: 05/27/2009] [Indexed: 11/16/2022]
Abstract
By combining in the same molecule Ras-interacting aromatic moieties and a sugar, we prepared a water-soluble Ras ligand that binds Ras and inhibits guanine nucleotide exchange. With this compound it was possible to determine experimentally by a (15)N-edited HSQC NMR experiment the ligand-Ras binding interface.
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Affiliation(s)
- Alessandro Palmioli
- Department of Biotechnology and Biosciences, University of Milano-Bicocca, Piazza della Scienza, 2, 20126 Milano, Italy
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Müller C, Gomez-Zurita Frau MA, Ballinari D, Colombo S, Bitto A, Martegani E, Airoldi C, van Neuren AS, Stein M, Weiser J, Battistini C, Peri F. Design, Synthesis, and Biological Evaluation of Levoglucosenone-Derived Ras Activation Inhibitors. ChemMedChem 2009; 4:524-8. [DOI: 10.1002/cmdc.200800416] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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20
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Rich RL, Myszka DG. Survey of the year 2007 commercial optical biosensor literature. J Mol Recognit 2008; 21:355-400. [DOI: 10.1002/jmr.928] [Citation(s) in RCA: 144] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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