1
|
Adhikari E, Liu Q, Burton C, Mockabee-Macias A, Lester DK, Lau E. l-fucose, a sugary regulator of antitumor immunity and immunotherapies. Mol Carcinog 2022; 61:439-453. [PMID: 35107186 DOI: 10.1002/mc.23394] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2021] [Revised: 12/23/2021] [Accepted: 12/24/2021] [Indexed: 12/20/2022]
Abstract
l-fucose is a dietary sugar that is used by cells in a process called fucosylation to posttranslationally modify and regulate protein behavior and function. As fucosylation plays essential cellular functions in normal organ and immune developmental and homeostasis, it is perhaps not surprising that it has been found to be perturbed in a number of pathophysiological contexts, including cancer. Increasing studies over the years have highlighted key roles that altered fucosylation can play in cancer cell-intrinsic as well as paracrine signaling and interactions. In particular, studies have demonstrated that fucosylation impact tumor:immunological interactions and significantly enhance or attenuate antitumor immunity. Importantly, fucosylation appears to be a posttranslational modification that can be therapeutically targeted, as manipulating the molecular underpinnings of fucosylation has been shown to be sufficient to impair or block tumor progression and to modulate antitumor immunity. Moreover, the fucosylation of anticancer agents, such as therapeutic antibodies, has been shown to critically impact their efficacy. In this review, we summarize the underappreciated roles that fucosylation plays in cancer and immune cells, as well as the fucosylation of therapeutic antibodies or the manipulation of fucosylation and their implications as new therapeutic modalities for cancer.
Collapse
Affiliation(s)
- Emma Adhikari
- Department of Tumor Biology, H. Lee Moffitt Cancer Center & Research Institute, Tampa, Florida, USA.,Cancer Biology Ph.D. Program, University of South Florida, Tampa, Florida, USA.,Molecular Medicine Program, H. Lee Moffitt Cancer Center & Research Institute, Tampa, Florida, USA
| | - Qian Liu
- Department of Tumor Biology, H. Lee Moffitt Cancer Center & Research Institute, Tampa, Florida, USA.,Cancer Biology Ph.D. Program, University of South Florida, Tampa, Florida, USA.,Molecular Medicine Program, H. Lee Moffitt Cancer Center & Research Institute, Tampa, Florida, USA
| | - Chase Burton
- Department of Tumor Biology, H. Lee Moffitt Cancer Center & Research Institute, Tampa, Florida, USA.,Cancer Biology Ph.D. Program, University of South Florida, Tampa, Florida, USA.,Molecular Medicine Program, H. Lee Moffitt Cancer Center & Research Institute, Tampa, Florida, USA.,Department of Immunology, H. Lee Moffitt Cancer Center & Research Institute, Tampa, Florida, USA.,Immunology Program, H. Lee Moffitt Cancer Center & Research Institute, Tampa, Florida, USA
| | - Andrea Mockabee-Macias
- Department of Tumor Biology, H. Lee Moffitt Cancer Center & Research Institute, Tampa, Florida, USA.,Cancer Biology Ph.D. Program, University of South Florida, Tampa, Florida, USA.,Molecular Medicine Program, H. Lee Moffitt Cancer Center & Research Institute, Tampa, Florida, USA
| | - Daniel K Lester
- Department of Tumor Biology, H. Lee Moffitt Cancer Center & Research Institute, Tampa, Florida, USA.,Cancer Biology Ph.D. Program, University of South Florida, Tampa, Florida, USA.,Molecular Medicine Program, H. Lee Moffitt Cancer Center & Research Institute, Tampa, Florida, USA
| | - Eric Lau
- Department of Tumor Biology, H. Lee Moffitt Cancer Center & Research Institute, Tampa, Florida, USA.,Cancer Biology Ph.D. Program, University of South Florida, Tampa, Florida, USA.,Molecular Medicine Program, H. Lee Moffitt Cancer Center & Research Institute, Tampa, Florida, USA
| |
Collapse
|
2
|
Utility of Bioluminescent Homogeneous Nucleotide Detection Assays in Measuring Activities of Nucleotide-Sugar Dependent Glycosyltransferases and Studying Their Inhibitors. Molecules 2021; 26:molecules26206230. [PMID: 34684811 PMCID: PMC8539010 DOI: 10.3390/molecules26206230] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2021] [Revised: 10/11/2021] [Accepted: 10/12/2021] [Indexed: 01/22/2023] Open
Abstract
Traditional glycosyltransferase (GT) activity assays are not easily configured for rapid detection nor for high throughput screening because they rely on radioactive product isolation, the use of heterogeneous immunoassays or mass spectrometry. In a typical glycosyltransferase biochemical reaction, two products are generated, a glycosylated product and a nucleotide released from the sugar donor substrate. Therefore, an assay that detects the nucleotide could be universal to monitor the activity of diverse glycosyltransferases in vitro. Here we describe three homogeneous and bioluminescent glycosyltransferase activity assays based on UDP, GDP, CMP, and UMP detection. Each of these assays are performed in a one-step detection that relies on converting the nucleotide product to ATP, then to bioluminescence using firefly luciferase. These assays are highly sensitive, robust and resistant to chemical interference. Various applications of these assays are presented, including studies on the specificity of sugar transfer by diverse GTs and the characterization of acceptor substrate-dependent and independent nucleotide-sugar hydrolysis. Furthermore, their utility in screening for specific GT inhibitors and the study of their mode of action are described. We believe that the broad utility of these nucleotide assays will enable the investigation of a large number of GTs and may have a significant impact on diverse areas of Glycobiology research.
Collapse
|
3
|
Alteen MG, Gros C, Meek RW, Cardoso DA, Busmann JA, Sangouard G, Deen MC, Tan H, Shen DL, Russell CC, Davies GJ, Robinson PJ, McCluskey A, Vocadlo DJ. A Direct Fluorescent Activity Assay for Glycosyltransferases Enables Convenient High‐Throughput Screening: Application to
O
‐GlcNAc Transferase. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202000621] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Matthew G. Alteen
- Department of Chemistry Simon Fraser University Burnaby BC V5A 1S6 Canada
| | - Christina Gros
- Department of Chemistry Simon Fraser University Burnaby BC V5A 1S6 Canada
| | - Richard W. Meek
- York Structural Biology Laboratory Department of Chemistry University of York York YO10 5DD UK
| | - David A. Cardoso
- Children's Medical Research Institute The University of Sydney Sydney NSW 2145 Australia
| | - Jil A. Busmann
- Department of Molecular Biology and Biochemistry Simon Fraser University Burnaby BC V5A 1S6 Canada
| | - Gontran Sangouard
- Department of Chemistry Simon Fraser University Burnaby BC V5A 1S6 Canada
| | - Matthew C. Deen
- Department of Chemistry Simon Fraser University Burnaby BC V5A 1S6 Canada
| | - Hong‐Yee Tan
- Department of Chemistry Simon Fraser University Burnaby BC V5A 1S6 Canada
| | - David L. Shen
- Department of Molecular Biology and Biochemistry Simon Fraser University Burnaby BC V5A 1S6 Canada
| | - Cecilia C. Russell
- Chemistry, School of Environmental and Life Sciences The University of Newcastle University Drive Callaghan NSW 2308 Australia
| | - Gideon J. Davies
- York Structural Biology Laboratory Department of Chemistry University of York York YO10 5DD UK
| | - Phillip J. Robinson
- Children's Medical Research Institute The University of Sydney Sydney NSW 2145 Australia
| | - Adam McCluskey
- Chemistry, School of Environmental and Life Sciences The University of Newcastle University Drive Callaghan NSW 2308 Australia
| | - David J. Vocadlo
- Department of Chemistry Simon Fraser University Burnaby BC V5A 1S6 Canada
- Department of Molecular Biology and Biochemistry Simon Fraser University Burnaby BC V5A 1S6 Canada
| |
Collapse
|
4
|
Alteen MG, Gros C, Meek RW, Cardoso DA, Busmann JA, Sangouard G, Deen MC, Tan H, Shen DL, Russell CC, Davies GJ, Robinson PJ, McCluskey A, Vocadlo DJ. A Direct Fluorescent Activity Assay for Glycosyltransferases Enables Convenient High‐Throughput Screening: Application toO‐GlcNAc Transferase. Angew Chem Int Ed Engl 2020; 59:9601-9609. [DOI: 10.1002/anie.202000621] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2020] [Revised: 02/13/2020] [Indexed: 12/27/2022]
Affiliation(s)
- Matthew G. Alteen
- Department of ChemistrySimon Fraser University Burnaby BC V5A 1S6 Canada
| | - Christina Gros
- Department of ChemistrySimon Fraser University Burnaby BC V5A 1S6 Canada
| | - Richard W. Meek
- York Structural Biology LaboratoryDepartment of ChemistryUniversity of York York YO10 5DD UK
| | - David A. Cardoso
- Children's Medical Research InstituteThe University of Sydney Sydney NSW 2145 Australia
| | - Jil A. Busmann
- Department of Molecular Biology and BiochemistrySimon Fraser University Burnaby BC V5A 1S6 Canada
| | - Gontran Sangouard
- Department of ChemistrySimon Fraser University Burnaby BC V5A 1S6 Canada
| | - Matthew C. Deen
- Department of ChemistrySimon Fraser University Burnaby BC V5A 1S6 Canada
| | - Hong‐Yee Tan
- Department of ChemistrySimon Fraser University Burnaby BC V5A 1S6 Canada
| | - David L. Shen
- Department of Molecular Biology and BiochemistrySimon Fraser University Burnaby BC V5A 1S6 Canada
| | - Cecilia C. Russell
- Chemistry, School of Environmental and Life SciencesThe University of Newcastle University Drive Callaghan NSW 2308 Australia
| | - Gideon J. Davies
- York Structural Biology LaboratoryDepartment of ChemistryUniversity of York York YO10 5DD UK
| | - Phillip J. Robinson
- Children's Medical Research InstituteThe University of Sydney Sydney NSW 2145 Australia
| | - Adam McCluskey
- Chemistry, School of Environmental and Life SciencesThe University of Newcastle University Drive Callaghan NSW 2308 Australia
| | - David J. Vocadlo
- Department of ChemistrySimon Fraser University Burnaby BC V5A 1S6 Canada
- Department of Molecular Biology and BiochemistrySimon Fraser University Burnaby BC V5A 1S6 Canada
| |
Collapse
|
5
|
Hunter CD, Guo T, Daskhan G, Richards MR, Cairo CW. Synthetic Strategies for Modified Glycosphingolipids and Their Design as Probes. Chem Rev 2018; 118:8188-8241. [DOI: 10.1021/acs.chemrev.8b00070] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Carmanah D. Hunter
- Alberta Glycomics Centre, Department of Chemistry, University of Alberta, Edmonton, Alberta T6G 2G2, Canada
| | - Tianlin Guo
- Alberta Glycomics Centre, Department of Chemistry, University of Alberta, Edmonton, Alberta T6G 2G2, Canada
| | - Gour Daskhan
- Alberta Glycomics Centre, Department of Chemistry, University of Alberta, Edmonton, Alberta T6G 2G2, Canada
| | - Michele R. Richards
- Alberta Glycomics Centre, Department of Chemistry, University of Alberta, Edmonton, Alberta T6G 2G2, Canada
| | - Christopher W. Cairo
- Alberta Glycomics Centre, Department of Chemistry, University of Alberta, Edmonton, Alberta T6G 2G2, Canada
| |
Collapse
|
6
|
Seelhorst K, Pahnke K, Meier C, Hahn U. Tagging Glycoproteins with Fluorescently Labeled GDP-Fucoses by Using α1,3-Fucosyltransferases. Chembiochem 2015; 16:1919-1924. [PMID: 26111108 DOI: 10.1002/cbic.201500275] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2015] [Indexed: 11/08/2022]
Abstract
Fucose-containing glycans mediate a variety of biological processes, but there is little information on reaction processes and mechanisms mediated by fucosyltransferases. We recently reported on fluorescently labeled GDP-β-L-fucose-ATTO 550, which enabled monitoring of α1,3-fucosyltransferase activity. Here we present an extension to the previously described results, based on the synthesis of a fluorescein-isothiocyanate (FITC)-labeled and two carboxyfluorescein-labeled (FAM-labeled) NDP-β-L-fucose derivatives, and applied all four compounds in labeling of different glycoproteins with the aid of four different fucosyltransferases. The labeling processes were analyzed by in-gel fluorescence and fluorescence polarization measurements. Comparison with the ATTO-labeled sugar revealed that the FITC-labeled fucose was the best of these substrates, and that the bacterial enzyme HP-FucT tolerated the fluorescent substrates better than human fucosyltransferases.
Collapse
Affiliation(s)
- Katrin Seelhorst
- Biochemistry, Department of Chemistry, Faculty of Sciences, Hamburg University, Martin-Luther-King-Platz 6, 20146 Hamburg (Germany)
| | - Katharina Pahnke
- Organic Chemistry, Department of Chemistry, Faculty of Sciences, Hamburg University, Martin-Luther-King-Platz 6, 20146 Hamburg (Germany)
| | - Chris Meier
- Organic Chemistry, Department of Chemistry, Faculty of Sciences, Hamburg University, Martin-Luther-King-Platz 6, 20146 Hamburg (Germany)
| | - Ulrich Hahn
- Biochemistry, Department of Chemistry, Faculty of Sciences, Hamburg University, Martin-Luther-King-Platz 6, 20146 Hamburg (Germany)
| |
Collapse
|
7
|
Affiliation(s)
| | - Mikael Bols
- Department of Chemistry, University of Copenhagen, DK-2100 Copenhagen, Denmark
| | | |
Collapse
|
8
|
Tsutsui N, Tanabe G, Gotoh G, Morita N, Nomura N, Kita A, Sugiura R, Muraoka O. Structure–activity relationship studies on acremomannolipin A, the potent calcium signal modulator with a novel glycolipid structure 2: Role of the alditol side chain stereochemistry. Bioorg Med Chem 2014; 22:945-59. [DOI: 10.1016/j.bmc.2013.12.052] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2013] [Revised: 12/20/2013] [Accepted: 12/21/2013] [Indexed: 11/30/2022]
|
9
|
Lunau N, Seelhorst K, Kahl S, Tscherch K, Stacke C, Rohn S, Thiem J, Hahn U, Meier C. Fluorescently Labeled Substrates for Monitoring α1,3‐Fucosyltransferase IX Activity. Chemistry 2013; 19:17379-90. [DOI: 10.1002/chem.201302601] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2013] [Indexed: 11/08/2022]
Affiliation(s)
- Nathalie Lunau
- Organic Chemistry, Department of Chemistry, Faculty of Sciences, Hamburg University, Martin‐Luther‐King‐Platz 6, 20146 Hamburg (Germany), Fax: (+49) 40‐42838‐5592
| | - Katrin Seelhorst
- Biochemistry, Department of Chemistry, Faculty of Sciences, Hamburg University, Martin‐Luther‐King‐Platz 6, 20146 Hamburg (Germany), Fax: (+49) 40‐42838‐2848
| | - Stefanie Kahl
- Organic Chemistry, Department of Chemistry, Faculty of Sciences, Hamburg University, Martin‐Luther‐King‐Platz 6, 20146 Hamburg (Germany), Fax: (+49) 40‐42838‐5592
| | - Kathrin Tscherch
- Food Chemistry, Department of Chemistry, Faculty of Sciences, Hamburg University, Martin‐Luther‐King‐Platz 6, 20146 Hamburg (Germany)
| | - Christina Stacke
- Biochemistry, Department of Chemistry, Faculty of Sciences, Hamburg University, Martin‐Luther‐King‐Platz 6, 20146 Hamburg (Germany), Fax: (+49) 40‐42838‐2848
| | - Sascha Rohn
- Food Chemistry, Department of Chemistry, Faculty of Sciences, Hamburg University, Martin‐Luther‐King‐Platz 6, 20146 Hamburg (Germany)
| | - Joachim Thiem
- Organic Chemistry, Department of Chemistry, Faculty of Sciences, Hamburg University, Martin‐Luther‐King‐Platz 6, 20146 Hamburg (Germany), Fax: (+49) 40‐42838‐5592
| | - Ulrich Hahn
- Biochemistry, Department of Chemistry, Faculty of Sciences, Hamburg University, Martin‐Luther‐King‐Platz 6, 20146 Hamburg (Germany), Fax: (+49) 40‐42838‐2848
| | - Chris Meier
- Organic Chemistry, Department of Chemistry, Faculty of Sciences, Hamburg University, Martin‐Luther‐King‐Platz 6, 20146 Hamburg (Germany), Fax: (+49) 40‐42838‐5592
| |
Collapse
|
10
|
Huang SH, Wu WS, Huang LY, Huang WF, Fu WC, Chen PT, Fang JM, Cheng WC, Cheng TJR, Wong CH. New continuous fluorometric assay for bacterial transglycosylase using Förster resonance energy transfer. J Am Chem Soc 2013; 135:17078-89. [PMID: 24131464 DOI: 10.1021/ja407985m] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The emergence of antibiotic resistance has prompted scientists to search for new antibiotics. Transglycosylase (TGase) is an attractive target for new antibiotic discovery due to its location on the outer membrane of bacteria and its essential role in peptidoglycan synthesis. Though there have been a few molecules identified as TGase inhibitors in the past thirty years, none of them have been developed into antibiotics for humans. The slow pace of development is perhaps due to the lack of continuous, quantitative, and high-throughput assay available for the enzyme. Herein, we report a new continuous fluorescent assay based on Förster resonance energy transfer, using lipid II analogues with a dimethylamino-azobenzenesulfonyl quencher in the lipid chain and a coumarin fluorophore in the peptide chain. During the process of transglycosylation, the quencher-appended polyprenol is released and the fluorescence of coumarin can be detected. Using this system, the substrate specificity and affinity of lipid II analogues bearing various numbers and configurations of isoprene units were investigated. Moreover, the inhibition constants of moenomycin and two previously identified small molecules were also determined. In addition, a high-throughput screening using the new assay was conducted to identify potent TGase inhibitors from a 120,000 compound library. This new continuous fluorescent assay not only provides an efficient and convenient way to study TGase activities, but also enables the high-throughput screening of potential TGase inhibitors for antibiotic discovery.
Collapse
Affiliation(s)
- Shih-Hsien Huang
- Genomics Research Center, Academia Sinica , 128 Academia Road, Section 2, Nankang, Taipei, 115, Taiwan
| | | | | | | | | | | | | | | | | | | |
Collapse
|
11
|
de Albuquerque Vasconcelos JL, de Almeida Ferreira S, de Lima ALR, de Melo Rêgo MJB, Bandeira ARG, de Lima Bezerra Cavalcanti C, de Melo Lira MM, Beltrão EIC. Comparing the Immunoexpression of FUT3 and FUT6 between Prostatic Adenocarcinoma and Benign Prostatic Hyperplasia. Acta Histochem Cytochem 2013; 46:105-9. [PMID: 23836950 PMCID: PMC3699712 DOI: 10.1267/ahc.13010] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2013] [Accepted: 05/02/2013] [Indexed: 11/22/2022] Open
Abstract
Prostatic Adenocarcinoma (PA) and Benign Prostatic Hyperplasia (BPH) have their etiology not fully understood mainly in glycidic aspects. Glycan changes are associated with cell alterations where glycosylation is carried out by glycosyltransferases, such as fucosyltransferases (FUTs). These enzymes catalyze the insertion of L-fucose residues in a variety of glycan structures often in the final stage of glycosylation. The present study aimed to investigate the expression of FUT3 and FUT6 in PA and BPH as well as to correlate immunostaining of these transferases with PA clinic-histopathologic data. The FUT3 and FUT6 expressions were evaluated by immunohistochemistry in formalin-fixed, paraffin-embedded biopsies of PA (n=40) and BPH (n=40). FUT3 and FUT6 showed a high expression in both prostatic diseases, especially FUT6. FUT6 was more immunoexpressed in PA cases than the FUT3 (p<0.0001) as well as in BPH cases but in a not significant way (p=0.0661). Besides, FUT3 was more expressed in BHP lesion than in PA cases (p<0.0001). Our study presented a new data about FUT3 and FUT6 expression in PA and BPH, revealing high FUT6 expression in both lesions and FUT3 overexpression in BHP in relation to PA, proposing that this enzyme could be a promising biomarker for benign prostate alterations.
Collapse
Affiliation(s)
| | | | | | | | | | | | | | - Eduardo Isidoro Carneiro Beltrão
- Laboratório de Imunopatologia Keizo Asami (LIKA), Universidade Federal de Pernambuco (UFPE)
- Departamento de Bioquímica, Universidade Federal de Pernambuco (UFPE)
| |
Collapse
|
12
|
Pinto RC, Andrade MM, Barros MT. Selective derivatization of d-galactose towards a practical synthesis of C-6 l-fucose analogues. Tetrahedron Lett 2012. [DOI: 10.1016/j.tetlet.2012.08.127] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
|
13
|
Lin YN, Stein D, Lin SW, Chang SM, Lin TC, Chuang YR, Gervay-Hague J, Narimatsu H, Lin CH. Chemoenzymatic Synthesis of GDP-L-Fucose Derivatives as Potent and Selective α-1,3-Fucosyltransferase Inhibitors. Adv Synth Catal 2012. [DOI: 10.1002/adsc.201100940] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
|
14
|
Rillahan CD, Brown SJ, Register AC, Rosen H, Paulson JC. High-Throughput Screening for Inhibitors of Sialyl- and Fucosyltransferases. Angew Chem Int Ed Engl 2011. [DOI: 10.1002/ange.201105065] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
|
15
|
Rillahan CD, Brown SJ, Register AC, Rosen H, Paulson JC. High-throughput screening for inhibitors of sialyl- and fucosyltransferases. Angew Chem Int Ed Engl 2011; 50:12534-7. [PMID: 22095645 DOI: 10.1002/anie.201105065] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2011] [Indexed: 12/11/2022]
Abstract
Sweet screens: A high-throughput screening platform for identification of inhibitors of sialyl- and fucosyltransferases based on fluorescence polarization (FP) has been developed. An analogue of the natural donor substrate carrying a fluorescent label (green star) is transferred to a glycoprotein acceptor, which results in robust FP. The screening of 16,000 compounds against different glycosyltransferases has identified various interesting inhibitors.
Collapse
Affiliation(s)
- Cory D Rillahan
- Department of Chemical Physiology, The Scripps Research Institute, 10550 N. Torrey Pines Road, La Jolla, CA 92037, USA
| | | | | | | | | |
Collapse
|
16
|
Going Beyond Continuous Glucose Monitoring with Boronic Acid-Appended Bipyridinium Salts. ACTA ACUST UNITED AC 2011. [DOI: 10.1007/978-1-4419-9672-5_7] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/19/2023]
|
17
|
Hosoguchi K, Maeda T, Furukawa JI, Shinohara Y, Hinou H, Sekiguchi M, Togame H, Takemoto H, Kondo H, Nishimura SI. An efficient approach to the discovery of potent inhibitors against glycosyltransferases. J Med Chem 2010; 53:5607-19. [PMID: 20684602 DOI: 10.1021/jm100612r] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
We describe a standardized approach for searching potent and selective inhibitors of glycosyltransferases by high throughput quantitative MALDI-TOFMS-based screening of focused compound libraries constructed by 1,3-dipolar cycloaddition of the desired azidosugar nucleotides with various alkynes. An aminooxy-functionalized reagent with a stable isotope was conjugated with oligosaccharides to afford glycopeptides as acceptor substrates with improved ion sensitivity. Enhanced ionization potency of new substrates allowed for MALDI-TOFMS-based facile and quantitative analysis of enzymatic glycosylation in the presence of glycosyl donor substrates. A non-natural synthetic sugar nucleotide was identified to be the first highly specific inhibitor for rat recombinant alpha2,3-(N)-sialyltransferase (alpha2,3ST, IC(50) = 8.2 microM), while this compound was proved to become a favorable substrate for rat recombinant alpha2,6-(N)-sialyltransferase (alpha2,6ST, K(m) = 125 microM). Versatility of this strategy was demonstrated by identification of two selective inhibitors for human recombinant alpha1,3-fucosyltransferase V (alpha1,3-FucT, K(i) = 293 nM) and alpha1,6-fucosyltransferase VIII (alpha1,6-FucT, K(i) = 13.8 microM).
Collapse
Affiliation(s)
- Kensaku Hosoguchi
- Graduate School of Life Science and Frontier Research Center for Post-Genome Science and Technology, Hokkaido University, Kita-ku, Sapporo, Japan
| | | | | | | | | | | | | | | | | | | |
Collapse
|
18
|
|
19
|
|
20
|
Anderl T, Audouard C, Miah A, Percy JM, Rinaudo G, Singh K. Syntheses of difluorinated carbasugar phosphates from trifluoroethanol. Org Biomol Chem 2009; 7:5200-6. [DOI: 10.1039/b914068a] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
|
21
|
Abstract
Enzyme assays are analytical tools to visualize enzyme activities. In recent years a large variety of enzyme assays have been developed to assist the discovery and optimization of industrial enzymes, in particular for "white biotechnology" where selective enzymes are used with great success for economically viable, mild and environmentally benign production processes. The present article highlights the aspects of fluorogenic and chromogenic substrates, sensors, and enzyme fingerprinting, which are our particular areas of interest.
Collapse
Affiliation(s)
- Jean-Louis Reymond
- Department of Chemistry and Biochemistry, University of Berne, Freiestrasse 3, Berne, 3012, Switzerland.
| | | | | |
Collapse
|