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Martínez-Bailén M, Rojo J, Ramos-Soriano J. Multivalent glycosystems for human lectins. Chem Soc Rev 2023; 52:536-572. [PMID: 36545903 DOI: 10.1039/d2cs00736c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Human lectins are involved in a wide variety of biological processes, both physiological and pathological, which have attracted the interest of the scientific community working in the glycoscience field. Multivalent glycosystems have been employed as useful tools to understand carbohydrate-lectin binding processes as well as for biomedical applications. The review shows the different scaffolds designed for a multivalent presentation of sugars and their corresponding binding studies to lectins and in some cases, their biological activities. We summarise this research by organizing based on lectin types to highlight the progression in this active field. The paper provides an overall picture of how these contributions have furnished relevant information on this topic to help in understanding and participate in these carbohydrate-lectin interactions.
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Affiliation(s)
- Macarena Martínez-Bailén
- Glycosystems Laboratory, Instituto de Investigaciones Químicas (IIQ), CSIC - Universidad de Sevilla, Av. Américo Vespucio 49, Seville 41092, Spain.
| | - Javier Rojo
- Glycosystems Laboratory, Instituto de Investigaciones Químicas (IIQ), CSIC - Universidad de Sevilla, Av. Américo Vespucio 49, Seville 41092, Spain.
| | - Javier Ramos-Soriano
- Glycosystems Laboratory, Instituto de Investigaciones Químicas (IIQ), CSIC - Universidad de Sevilla, Av. Américo Vespucio 49, Seville 41092, Spain.
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2
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Das R, Mukhopadhyay B. A brief insight to the role of glyconanotechnology in modern day diagnostics and therapeutics. Carbohydr Res 2021; 507:108394. [PMID: 34265516 DOI: 10.1016/j.carres.2021.108394] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2021] [Revised: 06/28/2021] [Accepted: 06/30/2021] [Indexed: 12/17/2022]
Abstract
Carbohydrate-protein and carbohydrate-carbohydrate interactions are very important for various biological processes. Although the magnitude of these interactions is low compared to that of protein-protein interaction, the magnitude can be boosted by multivalent approach known as glycocluster effect. Nanoparticle platform is one of the best ways to present diverse glycoforms in multivalent manner and thus, the field of glyconanotechnology has emerged as an important field of research considering their potential applications in diagnostics and therapeutics. Considerable advances in the field have been achieved through development of novel techniques, use of diverse metallic and non-metallic cores for better efficacy and application of ever-increasing number of carbohydrate ligands for site-specific interaction. The present review encompasses the recent developments in the area of glyconanotechnology and their future promise as diagnostic and therapeutic tools.
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Affiliation(s)
- Rituparna Das
- Sweet Lab, Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur, Nadia, 741246, India.
| | - Balaram Mukhopadhyay
- Sweet Lab, Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur, Nadia, 741246, India.
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3
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Zhong M, Yu Y, Song JQ, Jia TW, Liu AY, Zhao TF, He HJ, Yang MB, Zhang WX, Yang Y. Amide-sialoside protein conjugates as neomucin bioshields prevent influenza virus infection. Carbohydr Res 2020; 495:108088. [PMID: 32807356 DOI: 10.1016/j.carres.2020.108088] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2020] [Revised: 06/21/2020] [Accepted: 06/22/2020] [Indexed: 10/24/2022]
Abstract
We report the preparation of multivalent amide-sialoside-decorated human serum albumin (HSA) and bovine serum albumin (BSA) as mimics of natural mucin and bioshields against influenza virus infection. Free sialic acid with an amine on C-2 was covalently attached to the protein scaffolds using di-(N-succinimidyl) adipate. Dynamic light scattering (DLS) showed that the synthetic neomucins were able to act as bioshields and aggregate the influenza virion particles. The dissociation constants (KD) of the interactions between the prepared glycoconjugates and three different viral strains were measured by isothermal titration calorimetry (ITC) indicating the multivalent presentation of sialyl ligands on the HSA and BSA backbones can dramatically enhance the adsorbent capability compared to the corresponding monomeric sialoside. Hemagglutinin inhibition (HAI) and neuraminidase inhibition (NAI) assays showed that the glycoconjugates acted as moderate HA and NA inhibitors, thus impeding viral infection. Moreover, the different binding affinities of the glycoproteins to HA and NA proteins from different influenza viruses demonstrated the importance of HA/NA balance in viral replication and evolution. These findings provide a foundation for the development of antiviral drugs and viral adsorbent materials based on mimicking the structure of mucin.
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Affiliation(s)
- Ming Zhong
- Medical College of Shaoguan University, Shaoguan, 512026, Guangdong Province, China
| | - Yao Yu
- Key Laboratory of Industrial Microbiology, Ministry of Education, China International Science and Technology Cooperation Base of Food Nutrition/Safety and Medicinal Chemistry, College of Biotechnology, Tianjin University of Science & Technology, No. 29, 13th Avenue, TEDA, Tianjin, 300457, China
| | - Jia-Qi Song
- Key Laboratory of Industrial Microbiology, Ministry of Education, China International Science and Technology Cooperation Base of Food Nutrition/Safety and Medicinal Chemistry, College of Biotechnology, Tianjin University of Science & Technology, No. 29, 13th Avenue, TEDA, Tianjin, 300457, China
| | - Tian-Wei Jia
- Key Laboratory of Industrial Microbiology, Ministry of Education, China International Science and Technology Cooperation Base of Food Nutrition/Safety and Medicinal Chemistry, College of Biotechnology, Tianjin University of Science & Technology, No. 29, 13th Avenue, TEDA, Tianjin, 300457, China
| | - Ao-Yun Liu
- Key Laboratory of Industrial Microbiology, Ministry of Education, China International Science and Technology Cooperation Base of Food Nutrition/Safety and Medicinal Chemistry, College of Biotechnology, Tianjin University of Science & Technology, No. 29, 13th Avenue, TEDA, Tianjin, 300457, China
| | - Teng-Fei Zhao
- Key Laboratory of Industrial Microbiology, Ministry of Education, China International Science and Technology Cooperation Base of Food Nutrition/Safety and Medicinal Chemistry, College of Biotechnology, Tianjin University of Science & Technology, No. 29, 13th Avenue, TEDA, Tianjin, 300457, China
| | - Hao-Jie He
- Key Laboratory of Industrial Microbiology, Ministry of Education, China International Science and Technology Cooperation Base of Food Nutrition/Safety and Medicinal Chemistry, College of Biotechnology, Tianjin University of Science & Technology, No. 29, 13th Avenue, TEDA, Tianjin, 300457, China
| | - Mei-Bing Yang
- Key Laboratory of Industrial Microbiology, Ministry of Education, China International Science and Technology Cooperation Base of Food Nutrition/Safety and Medicinal Chemistry, College of Biotechnology, Tianjin University of Science & Technology, No. 29, 13th Avenue, TEDA, Tianjin, 300457, China
| | - Wen-Xuan Zhang
- Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100050, China.
| | - Yang Yang
- Key Laboratory of Industrial Microbiology, Ministry of Education, China International Science and Technology Cooperation Base of Food Nutrition/Safety and Medicinal Chemistry, College of Biotechnology, Tianjin University of Science & Technology, No. 29, 13th Avenue, TEDA, Tianjin, 300457, China.
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4
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Tavares MR, Bláhová M, Sedláková L, Elling L, Pelantová H, Konefał R, Etrych T, Křen V, Bojarová P, Chytil P. High-Affinity N-(2-Hydroxypropyl)methacrylamide Copolymers with Tailored N-Acetyllactosamine Presentation Discriminate between Galectins. Biomacromolecules 2020; 21:641-652. [PMID: 31904940 DOI: 10.1021/acs.biomac.9b01370] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
N-Acetyllactosamine (LacNAc; Galβ4GlcNAc) is a typical disaccharide ligand of galectins. The most abundant members of these human lectins, galectin-1 (Gal-1) and galectin-3 (Gal-3), participate in a number of pathologies including cancerogenesis and metastatic formation. In this study, we synthesized a series of fifteen N-(2-hydroxypropyl)methacrylamide (HPMA)-based glycopolymers with varying LacNAc amounts and presentations and evaluated the impact of their architecture on the binding affinity to Gal-1 and Gal-3. The controlled radical reversible addition-fragmentation chain transfer copolymerization technique afforded linear polymer precursors with comparable molecular weight (Mn ≈ 22,000 g mol-1) and narrow dispersity (D̵ ≈ 1.1). The precursors were conjugated with the functionalized LacNAc disaccharide (4-22 mol % content in glycopolymer) prepared by enzymatic synthesis under catalysis by β-galactosidase from Bacillus circulans. The structure-affinity relationship study based on the enzyme-linked immunosorbent assay revealed that the type of LacNAc presentation, individual or clustered on bi- or trivalent linkers, brings a clear discrimination (almost 300-fold) between Gal-1 and Gal-3, reaching avidity to Gal-1 in the nanomolar range. Whereas Gal-1 strongly preferred a dense presentation of individually distributed LacNAc epitopes, Gal-3 preferred a clustered LacNAc presentation. Such a strong galectin preference based just on the structure of a multivalent glycopolymer type is exceptional. The prepared nontoxic, nonimmunogenic, and biocompatible glycopolymers are prospective for therapeutic applications requiring selectivity for one particular galectin.
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Affiliation(s)
- Marina Rodrigues Tavares
- Institute of Macromolecular Chemistry , Czech Academy of Sciences , Heyrovského náměstí 2 , CZ-162 06 Prague 6 , Czech Republic
| | - Markéta Bláhová
- Institute of Macromolecular Chemistry , Czech Academy of Sciences , Heyrovského náměstí 2 , CZ-162 06 Prague 6 , Czech Republic
| | - Lieselotte Sedláková
- Institute of Microbiology , Czech Academy of Sciences , Vídeňská 1083 , CZ-142 20 Prague 4 , Czech Republic.,Department of Health Care Disciplines and Population Protection, Faculty of Biomedical Engineering , Czech Technical University in Prague , Sítná sq. 3105 , CZ-272 01 Kladno , Czech Republic
| | - Lothar Elling
- Institute of Biotechnology and Helmholtz Institute for Biomedical Engineering , RWTH Aachen , Pauwelstr. 20 , D-52079 Aachen , Germany
| | - Helena Pelantová
- Institute of Microbiology , Czech Academy of Sciences , Vídeňská 1083 , CZ-142 20 Prague 4 , Czech Republic
| | - Rafał Konefał
- Institute of Macromolecular Chemistry , Czech Academy of Sciences , Heyrovského náměstí 2 , CZ-162 06 Prague 6 , Czech Republic
| | - Tomáš Etrych
- Institute of Macromolecular Chemistry , Czech Academy of Sciences , Heyrovského náměstí 2 , CZ-162 06 Prague 6 , Czech Republic
| | - Vladimír Křen
- Institute of Microbiology , Czech Academy of Sciences , Vídeňská 1083 , CZ-142 20 Prague 4 , Czech Republic
| | - Pavla Bojarová
- Institute of Microbiology , Czech Academy of Sciences , Vídeňská 1083 , CZ-142 20 Prague 4 , Czech Republic.,Department of Health Care Disciplines and Population Protection, Faculty of Biomedical Engineering , Czech Technical University in Prague , Sítná sq. 3105 , CZ-272 01 Kladno , Czech Republic
| | - Petr Chytil
- Institute of Macromolecular Chemistry , Czech Academy of Sciences , Heyrovského náměstí 2 , CZ-162 06 Prague 6 , Czech Republic
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5
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Zhang X, Huang G, Huang H. The glyconanoparticle as carrier for drug delivery. Drug Deliv 2018; 25:1840-1845. [PMID: 30799659 PMCID: PMC7011877 DOI: 10.1080/10717544.2018.1519001] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2018] [Revised: 08/25/2018] [Accepted: 08/30/2018] [Indexed: 02/02/2023] Open
Abstract
The glyconanoparticle (GlycoNP) has multiple effects and has important applications in drug delivery and bioimaging. It not only has the advantages of nano drug delivery system but also utilizes the characteristics of multivalent interaction of sugar, which greatly improves the targeting of drug delivery. Herein, the application of GlycoNP in drug delivery was analyzed and discussed, the solution to its problem was proposed, and its prospects were forecasted.
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Affiliation(s)
- Xueqin Zhang
- Active Carbohydrate Research Institute, Chongqing Normal University, Chongqing, China
| | - Gangliang Huang
- Active Carbohydrate Research Institute, Chongqing Normal University, Chongqing, China
| | - Hualiang Huang
- School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Wuhan, China
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6
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Tang Q, Huang G. Preparation and applications of glyconanoparticles. Int J Biol Macromol 2018; 116:927-930. [PMID: 29777808 DOI: 10.1016/j.ijbiomac.2018.05.103] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2018] [Revised: 05/08/2018] [Accepted: 05/15/2018] [Indexed: 01/28/2023]
Abstract
The glyconanoparticle can be used to construct biological cell models that are similar to the expression of carbohydrates on the surface of cells, and it has become excellent research tools in glycobiology, biopharmaceuticals, and materials science. With the deepening of research, glyconanoparticle has broad application prospects in drug delivery, biomedical imaging, diagnosis and treatment because its preparation is simple, and it has the unique physical, chemical and biological properties. The preparation of glyconanoparticles and their applications were summarized and discussed here.
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Affiliation(s)
- Qilin Tang
- Active Carbohydrate Research Institute, Chongqing Normal University, Chongqing, 401331, China
| | - Gangliang Huang
- Active Carbohydrate Research Institute, Chongqing Normal University, Chongqing, 401331, China.
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7
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Bojarová P, Křen V. Sugared biomaterial binding lectins: achievements and perspectives. Biomater Sci 2018; 4:1142-60. [PMID: 27075026 DOI: 10.1039/c6bm00088f] [Citation(s) in RCA: 55] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Lectins, a distinct group of glycan-binding proteins, play a prominent role in the immune system ranging from pathogen recognition and tuning of inflammation to cell adhesion or cellular signalling. The possibilities of their detailed study expanded along with the rapid development of biomaterials in the last decade. The immense knowledge of all aspects of glycan-lectin interactions both in vitro and in vivo may be efficiently used in bioimaging, targeted drug delivery, diagnostic and analytic biological methods. Practically applicable examples comprise photoluminescence and optical biosensors, ingenious three-dimensional carbohydrate microarrays for high-throughput screening, matrices for magnetic resonance imaging, targeted hyperthermal treatment of cancer tissues, selective inhibitors of bacterial toxins and pathogen-recognising lectin receptors, and many others. This review aims to present an up-to-date systematic overview of glycan-decorated biomaterials promising for interactions with lectins, especially those applicable in biology, biotechnology or medicine. The lectins of interest include galectin-1, -3 and -7 participating in tumour progression, bacterial lectins from Pseudomonas aeruginosa (PA-IL), E. coli (Fim-H) and Clostridium botulinum (HA33) or DC-SIGN, receptors of macrophages and dendritic cells. The spectrum of lectin-binding biomaterials covered herein ranges from glycosylated organic structures, calixarene and fullerene cores over glycopeptides and glycoproteins, functionalised carbohydrate scaffolds of cyclodextrin or chitin to self-assembling glycopolymer clusters, gels, micelles and liposomes. Glyconanoparticles, glycan arrays, and other biomaterials with a solid core are described in detail, including inorganic matrices like hydroxyapatite or stainless steel for bioimplants.
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Affiliation(s)
- P Bojarová
- Laboratory of Biotransformation, Institute of Microbiology, Academy of Sciences of the Czech Republic, Vídeňská 1083, CZ 14220 Prague 4, Czech Republic.
| | - V Křen
- Laboratory of Biotransformation, Institute of Microbiology, Academy of Sciences of the Czech Republic, Vídeňská 1083, CZ 14220 Prague 4, Czech Republic.
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8
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Liu HP, Meng X, Yu Q, Tao YC, Xu F, He Y, Yu P, Yang Y. Synthesis of S-sialyl polymers as efficient polyvalent influenza inhibitors and capturers. J Carbohydr Chem 2018. [DOI: 10.1080/07328303.2017.1403613] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Hai-Peng Liu
- China International Science and Technology Cooperation Base of Food Nutrition/Safety and Medicinal Chemistry, Key Laboratory of Industrial Fermentation Microbiology of Ministry of Education, College of Biotechnology, Tianjin University of Science and Technology, Tianjin, China
| | - Xin Meng
- China International Science and Technology Cooperation Base of Food Nutrition/Safety and Medicinal Chemistry, Key Laboratory of Industrial Fermentation Microbiology of Ministry of Education, College of Biotechnology, Tianjin University of Science and Technology, Tianjin, China
| | - Qun Yu
- China International Science and Technology Cooperation Base of Food Nutrition/Safety and Medicinal Chemistry, Key Laboratory of Industrial Fermentation Microbiology of Ministry of Education, College of Biotechnology, Tianjin University of Science and Technology, Tianjin, China
| | - Yun-Chang Tao
- China International Science and Technology Cooperation Base of Food Nutrition/Safety and Medicinal Chemistry, Key Laboratory of Industrial Fermentation Microbiology of Ministry of Education, College of Biotechnology, Tianjin University of Science and Technology, Tianjin, China
| | - Fei Xu
- China International Science and Technology Cooperation Base of Food Nutrition/Safety and Medicinal Chemistry, Key Laboratory of Industrial Fermentation Microbiology of Ministry of Education, College of Biotechnology, Tianjin University of Science and Technology, Tianjin, China
| | - Yun He
- Research Center for Molecular Diagnostics and Sequencing, Research Institute of Tsinghua University in Shenzhen, Nanshan District, Shenzhen, China
| | - Peng Yu
- China International Science and Technology Cooperation Base of Food Nutrition/Safety and Medicinal Chemistry, Key Laboratory of Industrial Fermentation Microbiology of Ministry of Education, College of Biotechnology, Tianjin University of Science and Technology, Tianjin, China
| | - Yang Yang
- China International Science and Technology Cooperation Base of Food Nutrition/Safety and Medicinal Chemistry, Key Laboratory of Industrial Fermentation Microbiology of Ministry of Education, College of Biotechnology, Tianjin University of Science and Technology, Tianjin, China
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9
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Yan S, Zhao C, Ren Q, Xie X, Yang F, Du Y. Synthesis of trisaccharide-coated magnetic nanoparticles for antibody removal. Tetrahedron 2017. [DOI: 10.1016/j.tet.2017.04.003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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10
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Biotinylated N-Acetyllactosamine- and N,N-Diacetyllactosamine-Based Oligosaccharides as Novel Ligands for Human Galectin-3. Bioengineering (Basel) 2017; 4:bioengineering4020031. [PMID: 28952509 PMCID: PMC5590477 DOI: 10.3390/bioengineering4020031] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2017] [Revised: 03/28/2017] [Accepted: 03/31/2017] [Indexed: 12/19/2022] Open
Abstract
Galectin inhibitor design is an emerging research field due to the involvement of galectins in cancer. Galectin-3, in particular, plays an important role in tumor progression. To generate inhibitors, modifications of the glycan structure can be introduced. Conjugation of hydrophobic compounds to saccharides has proven to be promising as increased binding of galectin-3 can be observed. In the present study, we report on neo-glycans carrying hydrophobic biotin as novel ligands for human galectin-3. We modified N-acetyllactosamine- and N,N-diacetyllactosamine-based tetrasaccharides at the C6-position of the terminal saccharide unit using selective enzymatic oxidation and subsequent chemical conjugation of biotinamidohexanoic acid hydrazide. These neo-glycans were much better bound by galectin-3 than the unmodified counterparts. High selectivity for galectin-3 over galectin-1 was also proven. We generated multivalent neo-glycoproteins by conjugation of neo-glycans to bovine serum albumin showing high affinity for galectin-3. Compared to non-biotinylated neo-glycoproteins, we achieved high binding levels of galectin-3 with a lesser amount of conjugated neo-glycans. Multivalent ligand presentation of neo-glycoproteins significantly increased the inhibitory potency towards galectin-3 binding to asialofetuin when compared to free monovalent glycans. Our findings show the positive impact of 6-biotinylation of tetrasaccharides on galectin-3 binding, which broadens the recent design approaches for producing high-affinity ligands.
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11
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Battina SK, Kashyap S. Copper mediated iodoacetoxylation and glycosylation: effective and convenient approaches for the stereoselective synthesis of 2-deoxy-2-iodo glycosides. Tetrahedron Lett 2016. [DOI: 10.1016/j.tetlet.2016.01.035] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Kundoor G, Rao DS, Kashyap S. Regioselective Direct Difunctionalization of Glycals: Convenient Access to 2-Deoxyglycoconjugates Mediated by Tetra-n-butylammonium Iodide/Sodium Periodate. ASIAN J ORG CHEM 2015. [DOI: 10.1002/ajoc.201500470] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Govindareddy Kundoor
- Discovery Laboratory, Organic and Biomolecular Chemistry Division; Indian Institute of Chemical Technology (CSIR), Tarnaka; Uppal Road Hyderabad- 500007 India
| | - Dodla Sivanageswara Rao
- Discovery Laboratory, Organic and Biomolecular Chemistry Division; Indian Institute of Chemical Technology (CSIR), Tarnaka; Uppal Road Hyderabad- 500007 India
| | - Sudhir Kashyap
- Discovery Laboratory, Organic and Biomolecular Chemistry Division; Indian Institute of Chemical Technology (CSIR), Tarnaka; Uppal Road Hyderabad- 500007 India
- Academy of Scientific and Innovative Research; Indian Institute of Chemical Technology (CSIR); Hyderabad- 500 007 India
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Böcker S, Laaf D, Elling L. Galectin Binding to Neo-Glycoproteins: LacDiNAc Conjugated BSA as Ligand for Human Galectin-3. Biomolecules 2015. [PMID: 26213980 PMCID: PMC4598770 DOI: 10.3390/biom5031671] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
Carbohydrate-lectin interactions are relatively weak. As they play an important role in biological recognition processes, multivalent glycan ligands are designed to enhance binding affinity and inhibitory potency. We here report on novel neo-glycoproteins based on bovine serum albumin as scaffold for multivalent presentation of ligands for galectins. We prepared two kinds of tetrasaccharides (N-acetyllactosamine and N,N-diacetyllactosamine terminated) by multi-step chemo-enzymatic synthesis utilizing recombinant glycosyltransferases. Subsequent conjugation of these glycans to lysine groups of bovine serum albumin via squaric acid diethyl ester yielded a set of 22 different neo-glycoproteins with tuned ligand density. The neo-glycoproteins were analyzed by biochemical and chromatographic methods proving various modification degrees. The neo-glycoproteins were used for binding and inhibition studies with human galectin-3 showing high affinity. Binding strength and inhibition potency are closely related to modification density and show binding enhancement by multivalent ligand presentation. At galectin-3 concentrations comparable to serum levels of cancer patients, we detect the highest avidities. Selectivity of N,N-diacetyllactosamine terminated structures towards galectin-3 in comparison to galectin-1 is demonstrated. Moreover, we also see strong inhibitory potency of our scaffolds towards galectin-3 binding. These novel neo-glycoproteins may therefore serve as selective and strong galectin-3 ligands in cancer related biomedical research.
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Affiliation(s)
- Sophia Böcker
- Laboratory for Biomaterials, Institute for Biotechnology and Helmholtz-Institute for Biomedical Engineering, RWTH Aachen University, Pauwelsstr. 20, 52074 Aachen, Germany.
| | - Dominic Laaf
- Laboratory for Biomaterials, Institute for Biotechnology and Helmholtz-Institute for Biomedical Engineering, RWTH Aachen University, Pauwelsstr. 20, 52074 Aachen, Germany.
| | - Lothar Elling
- Laboratory for Biomaterials, Institute for Biotechnology and Helmholtz-Institute for Biomedical Engineering, RWTH Aachen University, Pauwelsstr. 20, 52074 Aachen, Germany.
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14
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Wang H, Tao J, Cai X, Chen W, Zhao Y, Xu Y, Yao W, Zeng J, Wan Q. Stereoselective Synthesis of α-Linked 2-Deoxy Glycosides Enabled by Visible-Light-Mediated Reductive Deiodination. Chemistry 2014; 20:17319-23. [DOI: 10.1002/chem.201405516] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2014] [Indexed: 12/23/2022]
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15
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Hennig R, Pollinger K, Veser A, Breunig M, Goepferich A. Nanoparticle multivalency counterbalances the ligand affinity loss upon PEGylation. J Control Release 2014; 194:20-7. [PMID: 25128717 DOI: 10.1016/j.jconrel.2014.07.062] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2014] [Revised: 07/28/2014] [Accepted: 07/30/2014] [Indexed: 11/27/2022]
Abstract
The conjugation of receptor ligands to shielded nanoparticles is a widely used strategy to precisely control nanoparticle-cell interactions. However, it is often overlooked that a ligand's affinity can be severely impaired by its attachment to the polyethylene glycol (PEG) chains that are frequently used to protect colloids from serum protein adsorption. Using the model ligand EXP3174, a small-molecule antagonist for the angiotensin II receptor type 1 (AT1R), we investigated the ligand's affinity before and after its PEGylation and when attached to PEGylated nanoparticles. The PEGylated ligand displayed a 580-fold decreased receptor affinity compared to the native ligand. Due to their multivalency, the nanoparticles regained a low nanomolar receptor affinity, which is in the range of the affinity of the native ligand. Moreover, a four orders of magnitude higher concentration of free ligand was required to displace PEGylated nanoparticles carrying EXP3174 from the receptor. On average, one nanoparticle was decorated with 11.2 ligand molecules, which led to a multivalent enhancement factor of 22.5 compared to the monovalent PEGylated ligand. The targeted nanoparticles specifically bound the AT1R and showed no interaction to receptor negative cells. Our study shows that the attachment of a small-molecule ligand to a PEG chain can severely affect its receptor affinity. Concomitantly, when the ligand is tethered to nanoparticles, the immense avidity greatly increases the ligand-receptor interaction. Based on our results, we highly recommend the affinity testing of receptor ligands before and after PEGylation to identify potent molecules for active nanoparticle targeting.
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Affiliation(s)
- Robert Hennig
- Department of Pharmaceutical Technology, University of Regensburg, Universitaetsstrasse 31, 93053 Regensburg, Germany
| | - Klaus Pollinger
- Department of Pharmaceutical Technology, University of Regensburg, Universitaetsstrasse 31, 93053 Regensburg, Germany
| | - Anika Veser
- Department of Pharmaceutical Technology, University of Regensburg, Universitaetsstrasse 31, 93053 Regensburg, Germany
| | - Miriam Breunig
- Department of Pharmaceutical Technology, University of Regensburg, Universitaetsstrasse 31, 93053 Regensburg, Germany
| | - Achim Goepferich
- Department of Pharmaceutical Technology, University of Regensburg, Universitaetsstrasse 31, 93053 Regensburg, Germany.
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Šimonová A, Kupper CE, Böcker S, Müller A, Hofbauerová K, Pelantová H, Elling L, Křen V, Bojarová P. Chemo-enzymatic synthesis of LacdiNAc dimers of varying length as novel galectin ligands. ACTA ACUST UNITED AC 2014. [DOI: 10.1016/j.molcatb.2013.12.018] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Yao W, Xia MJ, Meng XB, Li Q, Li ZJ. Adaptable synthesis of C-lactosyl glycoclusters and their binding properties with galectin-3. Org Biomol Chem 2014; 12:8180-95. [DOI: 10.1039/c4ob01374c] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
The synthesis of mono- to tetravalent C-β-lactosyl glycoclusters has been achieved in good yield. The KD values of glycoclusters against galectin-3 were tested by SPR assay, and the structure–activity relationship has been summarized in detail.
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Affiliation(s)
- Wang Yao
- The State Key Laboratory of Natural and Biomimetic Drugs
- School of Pharmaceutical Science
- Peking University
- Beijing 100191, P R China
| | - Meng-jie Xia
- The State Key Laboratory of Natural and Biomimetic Drugs
- School of Pharmaceutical Science
- Peking University
- Beijing 100191, P R China
| | - Xiang-bao Meng
- The State Key Laboratory of Natural and Biomimetic Drugs
- School of Pharmaceutical Science
- Peking University
- Beijing 100191, P R China
| | - Qing Li
- The State Key Laboratory of Natural and Biomimetic Drugs
- School of Pharmaceutical Science
- Peking University
- Beijing 100191, P R China
| | - Zhong-jun Li
- The State Key Laboratory of Natural and Biomimetic Drugs
- School of Pharmaceutical Science
- Peking University
- Beijing 100191, P R China
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