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Costa B, Dangate M, Vetro M, Donvito G, Gabrielli L, Amigoni L, Cassinelli G, Lanzi C, Ceriani M, De Gioia L, Filippi G, Cipolla L, Zaffaroni N, Perego P, Colombo D. Synthetic sulfoglycolipids targeting the serine-threonine protein kinase Akt. Bioorg Med Chem 2016; 24:3396-405. [PMID: 27316541 DOI: 10.1016/j.bmc.2016.05.031] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2016] [Revised: 04/22/2016] [Accepted: 05/17/2016] [Indexed: 01/14/2023]
Abstract
The serine-threonine protein kinase Akt, also known as protein kinase B, is a key component of the phosphoinositide 3-kinase (PI3K)-Akt-mTOR axis. Deregulated activation of this pathway is frequent in human tumors and Akt-dependent signaling appears to be critical in cell survival. PI3K activation generates 3-phosphorylated phosphatidylinositols that bind Akt pleckstrin homology (PH) domain. The blockage of Akt PH domain/phosphoinositides interaction represents a promising approach to interfere with the oncogenic potential of over-activated Akt. In the present study, phosphatidyl inositol mimics based on a β-glucoside scaffold have been synthesized as Akt inhibitors. The compounds possessed one or two lipophilic moieties of different length at the anomeric position of glucose, and an acidic or basic group at C-6. Docking studies, ELISA Akt inhibition assays, and cellular assays on different cell models highlighted 1-O-octadecanoyl-2-O-β-d-sulfoquinovopyranosyl-sn-glycerol as the best Akt inhibitor among the synthesized compounds, which could be considered as a lead for further optimization in the design of Akt inhibitors.
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Affiliation(s)
- Barbara Costa
- Department of Biotechnology and Biosciences, University of Milano-Bicocca, P.za della Scienza 2, 20126 Milan, Italy
| | - Milind Dangate
- Department of Medical Biotechnology and Translational Medicine, University of Milano, Via Saldini 50, 20133 Milan, Italy
| | - Maria Vetro
- Department of Medical Biotechnology and Translational Medicine, University of Milano, Via Saldini 50, 20133 Milan, Italy
| | - Giulia Donvito
- Department of Biotechnology and Biosciences, University of Milano-Bicocca, P.za della Scienza 2, 20126 Milan, Italy
| | - Luca Gabrielli
- Department of Biotechnology and Biosciences, University of Milano-Bicocca, P.za della Scienza 2, 20126 Milan, Italy
| | - Loredana Amigoni
- Department of Biotechnology and Biosciences, University of Milano-Bicocca, P.za della Scienza 2, 20126 Milan, Italy
| | - Giuliana Cassinelli
- Molecular Pharmacology Unit, Fondazione IRCCS Istituto Nazionale dei Tumori, Via Amadeo 42, 20133 Milan, Italy
| | - Cinzia Lanzi
- Molecular Pharmacology Unit, Fondazione IRCCS Istituto Nazionale dei Tumori, Via Amadeo 42, 20133 Milan, Italy
| | - Michela Ceriani
- Department of Biotechnology and Biosciences, University of Milano-Bicocca, P.za della Scienza 2, 20126 Milan, Italy
| | - Luca De Gioia
- Department of Biotechnology and Biosciences, University of Milano-Bicocca, P.za della Scienza 2, 20126 Milan, Italy
| | - Giulia Filippi
- Department of Biotechnology and Biosciences, University of Milano-Bicocca, P.za della Scienza 2, 20126 Milan, Italy
| | - Laura Cipolla
- Department of Biotechnology and Biosciences, University of Milano-Bicocca, P.za della Scienza 2, 20126 Milan, Italy
| | - Nadia Zaffaroni
- Molecular Pharmacology Unit, Fondazione IRCCS Istituto Nazionale dei Tumori, Via Amadeo 42, 20133 Milan, Italy
| | - Paola Perego
- Molecular Pharmacology Unit, Fondazione IRCCS Istituto Nazionale dei Tumori, Via Amadeo 42, 20133 Milan, Italy.
| | - Diego Colombo
- Department of Medical Biotechnology and Translational Medicine, University of Milano, Via Saldini 50, 20133 Milan, Italy
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Harvey DJ. Analysis of carbohydrates and glycoconjugates by matrix-assisted laser desorption/ionization mass spectrometry: an update for 2009-2010. MASS SPECTROMETRY REVIEWS 2015; 34:268-422. [PMID: 24863367 PMCID: PMC7168572 DOI: 10.1002/mas.21411] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/12/2013] [Revised: 07/16/2013] [Accepted: 07/16/2013] [Indexed: 05/07/2023]
Abstract
This review is the sixth update of the original article published in 1999 on the application of MALDI mass spectrometry to the analysis of carbohydrates and glycoconjugates and brings coverage of the literature to the end of 2010. General aspects such as theory of the MALDI process, matrices, derivatization, MALDI imaging, arrays and fragmentation are covered in the first part of the review and applications to various structural typed constitutes the remainder. The main groups of compound that are discussed in this section are oligo and polysaccharides, glycoproteins, glycolipids, glycosides and biopharmaceuticals. Many of these applications are presented in tabular form. Also discussed are medical and industrial applications of the technique, studies of enzyme reactions and applications to chemical synthesis.
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Affiliation(s)
- David J. Harvey
- Department of BiochemistryOxford Glycobiology InstituteUniversity of OxfordOxfordOX1 3QUUK
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Vetro M, Costa B, Donvito G, Arrighetti N, Cipolla L, Perego P, Compostella F, Ronchetti F, Colombo D. Anionic glycolipids related to glucuronosyldiacylglycerol inhibit protein kinase Akt. Org Biomol Chem 2015; 13:1091-9. [DOI: 10.1039/c4ob01602e] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Long chain GlcADG analogues synthesized as PI3P mimics inhibited isolated Akt and proliferation of human ovarian carcinoma IGROV-1 cells.
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Affiliation(s)
- Maria Vetro
- Dipartimento di Biotecnologie Mediche e Medicina Traslazionale
- Università degli Studi di Milano
- 20133 Milano
- Italy
| | - Barbara Costa
- Dipartimento di Biotecnologie e Bioscienze
- Università degli Studi di Milano-Bicocca
- 20126 Milano
- Italy
| | - Giulia Donvito
- Dipartimento di Biotecnologie e Bioscienze
- Università degli Studi di Milano-Bicocca
- 20126 Milano
- Italy
| | - Noemi Arrighetti
- Molecular Pharmacology Unit
- Fondazione IRCCS Istituto Nazionale dei Tumori
- 20133 Milan
- Italy
| | - Laura Cipolla
- Dipartimento di Biotecnologie e Bioscienze
- Università degli Studi di Milano-Bicocca
- 20126 Milano
- Italy
| | - Paola Perego
- Molecular Pharmacology Unit
- Fondazione IRCCS Istituto Nazionale dei Tumori
- 20133 Milan
- Italy
| | - Federica Compostella
- Dipartimento di Biotecnologie Mediche e Medicina Traslazionale
- Università degli Studi di Milano
- 20133 Milano
- Italy
| | - Fiamma Ronchetti
- Dipartimento di Biotecnologie Mediche e Medicina Traslazionale
- Università degli Studi di Milano
- 20133 Milano
- Italy
| | - Diego Colombo
- Dipartimento di Biotecnologie Mediche e Medicina Traslazionale
- Università degli Studi di Milano
- 20133 Milano
- Italy
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Gabrielli L, Calloni I, Donvito G, Costa B, Arrighetti N, Perego P, Colombo D, Ronchetti F, Nicotra F, Cipolla L. Phosphatidylinositol 3-Phosphate Mimics Based on a Sulfoquinovose Scaffold: Synthesis and Evaluation as Protein Kinase B Inhibitors. European J Org Chem 2014. [DOI: 10.1002/ejoc.201402664] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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Mozzi A, Mazzacuva P, Zampella G, Forcella ME, Fusi PA, Monti E. Molecular insight into substrate recognition by human cytosolic sialidase NEU2. Proteins 2012; 80:1123-32. [PMID: 22228546 DOI: 10.1002/prot.24013] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2011] [Revised: 11/29/2011] [Accepted: 12/01/2011] [Indexed: 12/18/2022]
Abstract
Sialidases or neuramidases are glycoside hydrolases removing terminal sialic acid residues from sialo-glycoproteins and sialo-glycolipids. Viral neuraminidases (NAs) have been extensively characterized and represent an excellent target for antiviral therapy through the synthesis of a series of competitive inhibitors that block the release of newly formed viral particles from infected cells. The human cytosolic sialidase NEU2 is the only mammalian enzyme structurally characterized and represents a valuable model to study the specificity of novel NA inhibitory drugs. Moreover, the availability of NEU2 3D structure represents a pivotal step toward the characterization of the molecular basis of natural substrates recognition by the enzyme. In this perspective, we have carried out a study of molecular docking of NEU2 active site using natural substrates of increasing complexity. Moreover, selective mutations of the residues putatively involved into substrate(s) interaction/recognition have been performed, and the resulting mutant enzymes have been preliminary tested for their catalytic activity and substrate specificity. We found that Q270 is involved in the binding of the disaccharide α(2,3) sialyl-galactose, whereas K45 and Q112 bind the distal glucose of the trisaccharide α(2,3) sialyl-lactose, corresponding to the oligosaccharide moiety of GM3 ganglioside. In addition, E218, beside D46, is proved to be a key catalytic residue, being, together with Y334, the second member of the nucleophile pair required for the catalysis. Overall, our results point out the existence of a dynamic network of interactions that are possibly involved in the recognition of the glycans bearing sialic acid.
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Affiliation(s)
- Alessandra Mozzi
- Department of Biotechnologies and Biosciences, University of Milano-Bicocca, Milano, Italy
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