101
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Agrahari AK, Singh AS, Singh AK, Mishra N, Singh M, Prakash P, Tiwari VK. Click inspired synthesis of hexa and octadecavalent peripheral galactosylated glycodendrimers and their possible therapeutic applications. NEW J CHEM 2019. [DOI: 10.1039/c9nj02564b] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Click inspired glycodendrimers comprising a rigid hexapropargyloxy benzene core with peripheral β-d-galactopyranosidic units were developed and evaluated for their therapeutic potential.
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Affiliation(s)
- Anand K. Agrahari
- Department of Chemistry
- Institute of Science
- Banaras Hindu University
- Varanasi-221005
- India
| | - Anoop S. Singh
- Department of Chemistry
- Institute of Science
- Banaras Hindu University
- Varanasi-221005
- India
| | - Ashish Kumar Singh
- Department of Microbiology
- Institute of Medical Sciences
- Banaras Hindu University
- Varanasi-221005
- India
| | - Nidhi Mishra
- Department of Chemistry
- Institute of Science
- Banaras Hindu University
- Varanasi-221005
- India
| | - Mala Singh
- Department of Chemistry
- Institute of Science
- Banaras Hindu University
- Varanasi-221005
- India
| | - Pradyot Prakash
- Department of Microbiology
- Institute of Medical Sciences
- Banaras Hindu University
- Varanasi-221005
- India
| | - Vinod K. Tiwari
- Department of Chemistry
- Institute of Science
- Banaras Hindu University
- Varanasi-221005
- India
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102
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Tulli LG, Miranda D, Lee CC, Sullivan Y, Grotzfeld R, Hollingworth G, Kneuer R, Karpov AS. Modular synthesis and modification of novel bifunctional dendrons. Org Biomol Chem 2019; 17:2906-2912. [DOI: 10.1039/c8ob02988a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
The modular synthesis of two generations of highly branched bifunctional dendrons is reported. The first generation dendron–antibody conjugate is shown to selectively detect CD4+ T cells in the PBMC culture.
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Affiliation(s)
| | - Daniela Miranda
- Novartis Institutes for BioMedical Research
- 4002 Basel
- Switzerland
| | | | - Yang Sullivan
- Novartis Institutes for BioMedical Research
- Cambridge
- USA
| | - Robert Grotzfeld
- Novartis Institutes for BioMedical Research
- 4002 Basel
- Switzerland
| | | | - Rainer Kneuer
- Novartis Institutes for BioMedical Research
- 4002 Basel
- Switzerland
| | - Alexei S. Karpov
- Novartis Institutes for BioMedical Research
- 4002 Basel
- Switzerland
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103
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Bioactive cell-like hybrids from dendrimersomes with a human cell membrane and its components. Proc Natl Acad Sci U S A 2018; 116:744-752. [PMID: 30591566 PMCID: PMC6338876 DOI: 10.1073/pnas.1811307116] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Cell-like hybrids from natural and synthetic amphiphiles provide a platform to engineer functions of synthetic cells and protocells. Cell membranes and vesicles prepared from human cell membranes are relatively unstable in vitro and therefore are difficult to study. The thicknesses of biological membranes and vesicles self-assembled from amphiphilic Janus dendrimers, known as dendrimersomes, are comparable. This feature facilitated the coassembly of functional cell-like hybrid vesicles from giant dendrimersomes and bacterial membrane vesicles generated from the very stable bacterial Escherichia coli cell after enzymatic degradation of its outer membrane. Human cells are fragile and require only mild centrifugation to be dismantled and subsequently reconstituted into vesicles. Here we report the coassembly of human membrane vesicles with dendrimersomes. The resulting giant hybrid vesicles containing human cell membranes, their components, and Janus dendrimers are stable for at least 1 y. To demonstrate the utility of cell-like hybrid vesicles, hybrids from dendrimersomes and bacterial membrane vesicles containing YadA, a bacterial adhesin protein, were prepared. The latter cell-like hybrids were recognized by human cells, allowing for adhesion and entry of the hybrid bacterial vesicles into human cells in vitro.
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104
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Selin M, Nummelin S, Deleu J, Ropponen J, Viitala T, Lahtinen M, Koivisto J, Hirvonen J, Peltonen L, Kostiainen MA, Bimbo LM. High-Generation Amphiphilic Janus-Dendrimers as Stabilizing Agents for Drug Suspensions. Biomacromolecules 2018; 19:3983-3993. [PMID: 30207704 DOI: 10.1021/acs.biomac.8b00931] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Pharmaceutical nanosuspensions are formed when drug crystals are suspended in aqueous media in the presence of stabilizers. This technology offers a convenient way to enhance the dissolution of poorly water-soluble drug compounds. The stabilizers exert their action through electrostatic or steric interactions, however, the molecular requirements of stabilizing agents have not been studied extensively. Here, four structurally related amphiphilic Janus-dendrimers were synthesized and screened to determine the roles of different macromolecular domains on the stabilization of drug crystals. Physical interaction and nanomilling experiments have substantiated that Janus-dendrimers with fourth generation hydrophilic dendrons were superior to third generation analogues and Poloxamer 188 in stabilizing indomethacin suspensions. Contact angle and surface plasmon resonance measurements support the hypothesis that Janus-dendrimers bind to indomethacin surfaces via hydrophobic interactions and that the number of hydrophobic alkyl tails determines the adsorption kinetics of the Janus-dendrimers. The results showed that amphiphilic Janus-dendrimers adsorb onto drug particles and thus can be used to provide steric stabilization against aggregation and recrystallization. The modular synthetic route for new amphiphilic Janus-dendrimers offers, thus, for the first time a versatile platform for stable general-use stabilizing agents of drug suspensions.
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Affiliation(s)
- Markus Selin
- Division of Pharmaceutical Chemistry and Technology, Faculty of Pharmacy , University of Helsinki , FI-00014 , Finland
| | - Sami Nummelin
- Biohybrid Materials, Department of Bioproducts and Biosystems , Aalto University , FI-00076 , Finland
| | - Jill Deleu
- Division of Pharmaceutical Chemistry and Technology, Faculty of Pharmacy , University of Helsinki , FI-00014 , Finland.,Faculty of Pharmaceutical Sciences , Ghent University , 9000 Ghent , Belgium
| | - Jarmo Ropponen
- VTT-Technical Research Centre of Finland Ltd , P.O. Box 1000, FI-02044 VTT Finland
| | - Tapani Viitala
- Division of Pharmaceutical Biosciences, Faculty of Pharmacy , University of Helsinki , FI-00014 , Finland
| | - Manu Lahtinen
- Department of Chemistry , University of Jyväskylä , FI-40014 , Finland
| | - Jari Koivisto
- Department of Chemistry and Materials Science , Aalto University , FI-00076 , Finland
| | - Jouni Hirvonen
- Division of Pharmaceutical Chemistry and Technology, Faculty of Pharmacy , University of Helsinki , FI-00014 , Finland
| | - Leena Peltonen
- Division of Pharmaceutical Chemistry and Technology, Faculty of Pharmacy , University of Helsinki , FI-00014 , Finland
| | - Mauri A Kostiainen
- Biohybrid Materials, Department of Bioproducts and Biosystems , Aalto University , FI-00076 , Finland.,HYBER Center of Excellence, Department of Applied Physics , Aalto University , FI-00076 , Finland
| | - Luis M Bimbo
- Division of Pharmaceutical Chemistry and Technology, Faculty of Pharmacy , University of Helsinki , FI-00014 , Finland.,Strathclyde Institute of Pharmacy and Biomedical Sciences, University of Strathclyde , Glasgow , G4 ORE , United Kingdom
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105
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Seidi F, Jenjob R, Phakkeeree T, Crespy D. Saccharides, oligosaccharides, and polysaccharides nanoparticles for biomedical applications. J Control Release 2018; 284:188-212. [DOI: 10.1016/j.jconrel.2018.06.026] [Citation(s) in RCA: 57] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2018] [Revised: 06/18/2018] [Accepted: 06/20/2018] [Indexed: 12/16/2022]
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106
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Block copolymer crystalsomes with an ultrathin shell to extend blood circulation time. Nat Commun 2018; 9:3005. [PMID: 30068976 PMCID: PMC6070537 DOI: 10.1038/s41467-018-05396-x] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2017] [Accepted: 07/02/2018] [Indexed: 11/23/2022] Open
Abstract
In water, amphiphilic block copolymers (BCPs) can self-assemble into various micelle structures depicting curved liquid/liquid interface. Crystallization, which is incommensurate with this curved space, often leads to defect accumulation and renders the structures leaky, undermining their potential biomedical applications. Herein we report using an emulsion-solution crystallization method to control the crystallization of an amphiphilic BCP, poly (l-lactide acid)-b-poly (ethylene glycol) (PLLA-b-PEG), at curved liquid/liquid interface. The resultant BCP crystalsomes (BCCs) structurally mimic the classical polymersomes and liposomes yet mechanically are more robust thanks to the single crystal-like crystalline PLLA shell. In blood circulation and biodistribution experiments, fluorophore-loaded BCCs show a 24 h circulation half-life and a 8% particle retention in the blood even at 96 h post injection. We further demonstrate that this good performance can be attributed to controlled polymer crystallization and the unique BCC nanostructure. In block copolymer vesicles, crystallization often leads to defects and renders the structures leaky that undermines their potential biomedical application. Here the authors use an emulsion solution method to control the crystallization of an amphiphilic block copolymer at the curved liquid/liquid interface to improve the blood circulation time.
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107
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Sekhar KPC, Adicherla H, Nayak RR. Impact of Glycolipid Hydrophobic Chain Length and Headgroup Size on Self-Assembly and Hydrophobic Guest Release. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2018; 34:8875-8886. [PMID: 29983075 DOI: 10.1021/acs.langmuir.8b01401] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Encapsulation of a hydrophobic guest molecule inside a micelle and its stimuli-sensitive release is a useful strategy for target-specific drug delivery. Herein, nine biobased glycolipids were derived from plant sources. The influence of headgroup on the stability and aggregation pattern in water with different alkyl chain lengths was investigated to deduce the structure-property relationship. External factors, such as temperature, pH, and NaCl and urea concentrations, were employed to explore stimuli response of glycolipid nanoassemblies. Furthermore, solvatochromic dyes, such as pyrene, N-phenyl-1-naphthylamine, and curcumin, were utilized to examine hydrophobe loading capacities of these glycolipid assemblies. A fluorescence study was performed to investigate the enzyme-sensitive hydrophobe release. Interestingly, the pH-sensitive hydrophobic guests showed pH-responsive release from dynamic micelles. Finally, the synthesized glycolipids revealed their nanoassemblies as smart carriers for hydrophobic cargo.
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Affiliation(s)
- Kanaparedu P C Sekhar
- Centre for Lipid Science and Technology , CSIR-Indian Institute of Chemical Technology , Hyderabad 500007 , India
- Academy of Scientific and Innovative Research (AcSIR) , New Delhi 110001 , India
| | - Harikrishna Adicherla
- CSIR-Centre for Cellular and Molecular Biology , Uppal Road , Hyderabad 500007 , India
| | - Rati Ranjan Nayak
- Centre for Lipid Science and Technology , CSIR-Indian Institute of Chemical Technology , Hyderabad 500007 , India
- Academy of Scientific and Innovative Research (AcSIR) , New Delhi 110001 , India
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108
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Liu X, Gitsov I. Thermosensitive Amphiphilic Janus Dendrimers with Embedded Metal Binding Sites. Synthesis and Self-Assembly. Macromolecules 2018. [DOI: 10.1021/acs.macromol.8b00700] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Xin Liu
- Department of Chemistry, State University of New York - ESF, Syracuse, New York 13210, United States
| | - Ivan Gitsov
- Department of Chemistry, State University of New York - ESF, Syracuse, New York 13210, United States
- The Michael M.
Szwarc Polymer Research Institute, Syracuse, New York 13210, United States
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109
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Prasad S, Achazi K, Schade B, Haag R, Sharma SK. Nonionic Dendritic and Carbohydrate Based Amphiphiles: Self-Assembly and Transport Behavior. Macromol Biosci 2018; 18:e1800019. [PMID: 29782700 DOI: 10.1002/mabi.201800019] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2018] [Revised: 04/04/2018] [Indexed: 11/08/2022]
Abstract
Herein, a new series of non-ionic dendritic and carbohydrate based amphiphiles is synthesized employing biocompatible starting materials and studied for supramolecular aggregate formation in aqueous solution. The dendritic amphiphiles 12 and 13 possessing poly(glycerol) [G2.0] as hydrophilic unit and C-10 and C-18 hydrophobic alkyl chains, respectively, exhibit low critical aggregation concentration (CAC) in the order of 10-5 m and hydrodynamic diameters in the 8-10 nm range and supplemented by cryogenic transmission electron microscopy. Ultraviolet-visible (UV-Vis) and fluorescence spectroscopy suggests the effective solubilization of hydrophobic guests by the self-assembled architectures, with the nanotransporters 12 and 13 possessing the highest encapsulation efficiency of 80.74 and 98.03% for curcumin. Efficient uptake of encapsulated curcumin in adenocarcinomic human alveolar basal epithelial (A549) cells is observed by confocal laser scanning microscopy. Amphiphiles 12 and 13 are non-cytotoxic at the concentrations studied, however, curcumin encapsulated samples efficiently reduce the viability of A549 cells in vitro. Experimental studies indicate the ability of amphiphile 13 to encapsulate 1-anilinonaphthalene-8-sulfonic acid (ANS) and curcumin with binding constant of 1.16 × 1055 m-1 and 1.43 × 106 m-1 , respectively. Overall, our findings demonstrate the potential of these dendritic amphiphiles for the development of prospective nanocarriers for the solubilization of hydrophobic drugs.
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Affiliation(s)
- Suchita Prasad
- Department of Chemistry, University of Delhi, Delhi, 110 007, India
| | - Katharina Achazi
- Institut für Chemie und Biochemie, Freie Universität Berlin, Takustraße 3, 14195, Berlin, Germany
| | - Boris Schade
- Forschungszentrum für Elektronenmikroskopie, Institut für Chemie und Biochemie, Freie Universität Berlin, Fabeckstraße 36a, 14195, Berlin, Germany
| | - Rainer Haag
- Institut für Chemie und Biochemie, Freie Universität Berlin, Takustraße 3, 14195, Berlin, Germany
| | - Sunil K Sharma
- Department of Chemistry, University of Delhi, Delhi, 110 007, India
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110
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Kaltner H, García Caballero G, Ludwig AK, Manning JC, Gabius HJ. From glycophenotyping by (plant) lectin histochemistry to defining functionality of glycans by pairing with endogenous lectins. Histochem Cell Biol 2018; 149:547-568. [DOI: 10.1007/s00418-018-1676-7] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/26/2018] [Indexed: 01/06/2023]
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111
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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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112
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Ledeen RW, Kopitz J, Abad-Rodríguez J, Gabius HJ. Glycan Chains of Gangliosides: Functional Ligands for Tissue Lectins (Siglecs/Galectins). PROGRESS IN MOLECULAR BIOLOGY AND TRANSLATIONAL SCIENCE 2018; 156:289-324. [PMID: 29747818 DOI: 10.1016/bs.pmbts.2017.12.004] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Molecular signals on the cell surface are responsible for adhesion and communication. Of relevance in this respect, their chemical properties endow carbohydrates with the capacity to store a maximum of information in a minimum of space. One way to present glycans on the cell surface is their covalent conjugation to a ceramide anchor. Among the resulting glycosphingolipids, gangliosides are special due to the presence of at least one sialic acid in the glycan chains. Their spatial accessibility and the dynamic regulation of their profile are factors that argue in favor of a role of glycans of gangliosides as ligands (counterreceptors) for carbohydrate-binding proteins (lectins). Indeed, as discovered first for a bacterial toxin, tissue lectins bind gangliosides and mediate contact formation (trans) and signaling (cis). While siglecs have a preference for higher sialylated glycans, certain galectins also target the monosialylated pentasaccharide of ganglioside GM1. Enzymatic interconversion of ganglioside glycans by sialidase action, relevant for neuroblastoma cell differentiation and growth control in vitro, for axonogenesis and axon regeneration, as well as for proper communication between effector and regulatory T cells, changes lectin-binding affinity profoundly. The GD1a-to-GM1 "editing" is recognized by such lectins, for example, myelin-associated glycoprotein (siglec-4) losing affinity and galectin-1 gaining reactivity, and then translated into postbinding signaling. Orchestrations of loss/gain of affinity, of ganglioside/lectin expression, and of lectin presence in a network offer ample opportunities for fine-tuning. Thus glycans of gangliosides such as GD1a and GM1 are functional counterreceptors by a pairing with tissue lectins, an emerging aspect of ganglioside and lectin functionality.
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Affiliation(s)
- Robert W Ledeen
- Department of Pharmacology, Physiology & Neuroscience, Rutgers New Jersey Medical School, Newark, NJ, United States.
| | - Jürgen Kopitz
- Ruprecht-Karls-University Heidelberg, Heidelberg, Germany
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113
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Han B, Sakairi N. NMR Spectroscopic Characterization and Inclusion Mode of a Cyclodextrin-based Glyco-cluster with Antiphlogistic Ibuprofen Sodium Salt. CHEM LETT 2018. [DOI: 10.1246/cl.171000] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Bin Han
- Graduate School of Environmental Science, Hokkaido University, Kita-ku, Sapporo 060-0810, Japan
| | - Nobuo Sakairi
- Graduate School of Environmental Earth Science, Hokkaido University, Kita-ku, Sapporo 060-0810, Japan
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114
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115
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Development of Pseudomonas aeruginosa
Lectin LecA Inhibitor by using Bivalent Galactosides Supported on Polyproline Peptide Scaffolds. Chem Asian J 2018; 13:686-700. [DOI: 10.1002/asia.201701724] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2017] [Revised: 01/24/2018] [Indexed: 12/21/2022]
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116
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Jian J, Fan J, Yang H, Lan P, Li M, Liu P, Gao H, Sun P. Total Synthesis of the Flavonoid Natural Product Houttuynoid A. JOURNAL OF NATURAL PRODUCTS 2018; 81:371-377. [PMID: 29394065 DOI: 10.1021/acs.jnatprod.7b00791] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
The first total synthesis of the antiviral flavonoid houttuynoid A (1) has been achieved from aryl ketone 6 and benzofuran aldehyde 5 in nine linear steps. The C6-C3-C6 structure of the flavonoid was synthesized by an I2-catalyzed oxa-Michael addition of a chalcone intermediate, generated by the Claisen-Schmidt condensation of 5 and 6. This work provides a method for the synthesis of houttuynoids and provides a reference for the synthesis of the remaining members of the houttuynoid family.
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Affiliation(s)
- Jie Jian
- Department of Medicinal Chemistry and Institute of Traditional Chinese Medicine and Natural Products, College of Pharmacy/Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, Jinan University , Guangzhou 510632, People's Republic of China
| | - Jilin Fan
- Department of Medicinal Chemistry and Institute of Traditional Chinese Medicine and Natural Products, College of Pharmacy/Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, Jinan University , Guangzhou 510632, People's Republic of China
| | - Hui Yang
- Department of Medicinal Chemistry and Institute of Traditional Chinese Medicine and Natural Products, College of Pharmacy/Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, Jinan University , Guangzhou 510632, People's Republic of China
| | - Ping Lan
- Department of Food Science and Engineering, College of Science and Engineering, Jinan University , Guangzhou 510632, People's Republic of China
| | - Manmei Li
- Department of Medicinal Chemistry and Institute of Traditional Chinese Medicine and Natural Products, College of Pharmacy/Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, Jinan University , Guangzhou 510632, People's Republic of China
| | - Peijun Liu
- Pharmacy School, Zunyi Medical University , Zunyi 563003, People's Republic of China
| | - Hao Gao
- Department of Medicinal Chemistry and Institute of Traditional Chinese Medicine and Natural Products, College of Pharmacy/Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, Jinan University , Guangzhou 510632, People's Republic of China
| | - Pinghua Sun
- Department of Medicinal Chemistry and Institute of Traditional Chinese Medicine and Natural Products, College of Pharmacy/Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, Jinan University , Guangzhou 510632, People's Republic of China
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117
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Reichardt NC, Martín-Lomas M, Penadés S. Opportunities for glyconanomaterials in personalized medicine. Chem Commun (Camb) 2018; 52:13430-13439. [PMID: 27709147 DOI: 10.1039/c6cc04445j] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In this feature article we discuss the particular relevance of glycans as components or targets of functionalized nanoparticles (NPs) for potential applications in personalized medicine but we will not enter into descriptions for their preparation. For a more general view covering the preparation and applications of glyconanomaterials the reader is referred to a number of recent reviews. The combination of glyco- and nanotechnology is already providing promising new tools for more personalized solutions to diagnostics and therapy. Current applications relevant to personalized medicine include drug targeting, localized radiation therapy, imaging of glycan expression of cancer cells, point of care diagnostics, cancer vaccines, photodynamic therapy, biosensors, and glycoproteomics.
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Affiliation(s)
- Niels-Christian Reichardt
- CIC biomaGUNE, Glycotechnology Laboratory, Paseo Miramón 182, 20009 San Sebastian, Spain. and CIBER BBN, Paseo Miramón 182, 20009 San Sebastian, Spain
| | - Manuel Martín-Lomas
- CIC biomaGUNE, Glycotechnology Laboratory, Paseo Miramón 182, 20009 San Sebastian, Spain.
| | - Soledad Penadés
- CIC biomaGUNE, Glycotechnology Laboratory, Paseo Miramón 182, 20009 San Sebastian, Spain.
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118
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Xiao N, Cheng A, Zhu QG, Cheng Q, Wu RB, Yu BR, Wang Z. Synthesis of Homoleptic and Heteroleptic Ruthenium Complexes Appended with Glucosyl Ligand by the Click-to-Chelate Approach. RUSS J GEN CHEM+ 2018. [DOI: 10.1134/s1070363217120507] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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119
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Exploring functional pairing between surface glycoconjugates and human galectins using programmable glycodendrimersomes. Proc Natl Acad Sci U S A 2018; 115:E2509-E2518. [PMID: 29382751 PMCID: PMC5856548 DOI: 10.1073/pnas.1720055115] [Citation(s) in RCA: 65] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Cells are decorated with charged and uncharged carbohydrate ligands known as glycans, which are responsible for several key functions, including their interactions with proteins known as lectins. Here, a platform consisting of synthetic nanoscale vesicles, known as glycodendrimersomes, which can be programmed with cell surface-like structural and topological complexity, is employed to dissect design aspects of glycan presentation, with specificity for lectin-mediated bridging. Aggregation assays reveal the extent of cross-linking of these biomimetic nanoscale vesicles—presenting both anionic and neutral ligands in a bioactive manner—with disease-related human and other galectins, thus offering the possibility of unraveling the nature of these fundamental interactions. Precise translation of glycan-encoded information into cellular activity depends critically on highly specific functional pairing between glycans and their human lectin counter receptors. Sulfoglycolipids, such as sulfatides, are important glycolipid components of the biological membranes found in the nervous and immune systems. The optimal molecular and spatial design aspects of sulfated and nonsulfated glycans with high specificity for lectin-mediated bridging are unknown. To elucidate how different molecular and spatial aspects combine to ensure the high specificity of lectin-mediated bridging, a bottom-up toolbox is devised. To this end, negatively surface-charged glycodendrimersomes (GDSs), of different nanoscale dimensions, containing sulfo-lactose groups are self-assembled in buffer from a synthetic sulfatide mimic: Janus glycodendrimer (JGD) containing a 3′-O-sulfo-lactose headgroup. Also prepared for comparative analysis are GDSs with nonsulfated lactose, a common epitope of human membranes. These self-assembled GDSs are employed in aggregation assays with 15 galectins, comprising disease-related human galectins, and other natural and engineered variants from four families, having homodimeric, heterodimeric, and chimera architectures. There are pronounced differences in aggregation capacity between human homodimeric and heterodimeric galectins, and also with respect to their responsiveness to the charge of carbohydrate-derived ligand. Assays reveal strong differential impact of ligand surface charge and density, as well as lectin concentration and structure, on the extent of surface cross-linking. These findings demonstrate how synthetic JGD-headgroup tailoring teamed with protein engineering and network assays can help explain how molecular matchmaking operates in the cellular context of glycan and lectin complexity.
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120
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Restuccia A, Hudalla GA. Tuning carbohydrate density enhances protein binding and inhibition by glycosylated β-sheet peptide nanofibers. Biomater Sci 2018; 6:2327-2335. [DOI: 10.1039/c8bm00533h] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The efficacy of glycosylated β-sheet peptide nanofibers for inhibiting carbohydrate-binding proteins can be increased by tuning carbohydrate density to maximize protein binding affinity.
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Affiliation(s)
- Antonietta Restuccia
- J. Crayton Pruitt Family Department of Biomedical Engineering
- University of Florida
- Gainesville
- USA 32611
| | - Gregory A. Hudalla
- J. Crayton Pruitt Family Department of Biomedical Engineering
- University of Florida
- Gainesville
- USA 32611
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121
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Kulikov OV, Siriwardane DA, Budhathoki-Uprety J, McCandless GT, Mahmood SF, Novak BM. The secondary structures of PEG-functionalized random copolymers derived from (R)- and (S)- families of alkyne polycarbodiimides. Polym Chem 2018. [DOI: 10.1039/c8py00282g] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Macromolecular micelles: a hydrophobic polyamidine backbone surrounded by hydrophilic PEG chains.
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Affiliation(s)
- Oleg V. Kulikov
- Department of Chemistry
- Massachusetts Institute of Technology
- Cambridge
- USA
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122
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Zhou Y, Li L, Chen W, Li D, Zhou N, He J, Ni P, Zhang Z, Zhu X. A twin-tailed tadpole-shaped amphiphilic copolymer of poly(ethylene glycol) and cyclic poly(ε-caprolactone): synthesis, self-assembly and biomedical applications. Polym Chem 2018. [DOI: 10.1039/c8py00022k] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
A tadpole-shaped amphiphilic copolymer containing cyclic PCL and two PEG tails, PEG-b-(c-PCL)-b-PEG, was rationally designed and synthesized.
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Affiliation(s)
- Yanyan Zhou
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials
- Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application
- College of Chemistry Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
| | - Lei Li
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials
- Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application
- College of Chemistry Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
| | - Wei Chen
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials
- Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application
- College of Chemistry Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
| | - Dian Li
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials
- Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application
- College of Chemistry Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
| | - Nianchen Zhou
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials
- Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application
- College of Chemistry Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
| | - Jinlin He
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials
- Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application
- College of Chemistry Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
| | - Peihong Ni
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials
- Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application
- College of Chemistry Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
| | - Zhengbiao Zhang
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials
- Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application
- College of Chemistry Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
| | - Xiulin Zhu
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials
- Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application
- College of Chemistry Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
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123
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Yu S, Yang Y, Chen T, Xu J, Jin LY. Donor-acceptor interaction-driven self-assembly of amphiphilic rod-coil molecules into supramolecular nanoassemblies. NANOSCALE 2017; 9:17975-17982. [PMID: 29130091 DOI: 10.1039/c7nr05329k] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Rigid-flexible amphiphilic molecules consisting of an aromatic segment based on pyrene and biphenyl units and hydrophilic polyethylene oxide chains self-assemble into lamellar, hexagonal columnar, and two-dimensional columnar nanostructures in the bulk state. In aqueous solution, these molecules self-assemble into nanofibers, spherical micelles, and multilayer nanotubes, depending on the chain or rod length of the molecules. Notably, ordered nanostructures of supramolecular polymers, such as single-layer curving fragments, nanofibers, and nanosheets, were constructed through charge-transfer interactions between the nanoobjects and an electron-acceptor molecule, 2,4,5,7-tetranitrofluorenone. These experimental results reveal that diverse supramolecular morphologies can be controlled by tuning rod-coil molecular interactions or charge-transfer interactions between the donor and acceptor molecules.
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Affiliation(s)
- Shengsheng Yu
- Key Laboratory for Organism Resources of the Changbai Mountain and Functional Molecules, Ministry of Education, and Department of Chemistry, College of Science, Yanbian University, Yanji, Jilin 133002, China.
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124
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Kopitz J, Xiao Q, Ludwig A, Romero A, Michalak M, Sherman SE, Zhou X, Dazen C, Vértesy S, Kaltner H, Klein ML, Gabius H, Percec V. Reaction of a Programmable Glycan Presentation of Glycodendrimersomes and Cells with Engineered Human Lectins To Show the Sugar Functionality of the Cell Surface. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201708237] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Jürgen Kopitz
- Institute of Pathology, Department of Applied Tumor Biology Faculty of Medicine Ruprecht-Karls-University Heidelberg Im Neuenheimer Feld 224 69120 Heidelberg Germany
| | - Qi Xiao
- Roy & Diana Vagelos Laboratories Department of Chemistry University of Pennsylvania Philadelphia Pennsylvania 19104-6323 USA
| | - Anna‐Kristin Ludwig
- Institute of Physiological Chemistry, Faculty of Veterinary Medicine Ludwig-Maximilians-University Munich Veterinaerstr. 13 80539 Munich Germany
| | - Antonio Romero
- Centro de Investigaciones Biológicas CSIC Ramiro de Maeztu, 9 28040 Madrid Spain
| | - Malwina Michalak
- Institute of Pathology, Department of Applied Tumor Biology Faculty of Medicine Ruprecht-Karls-University Heidelberg Im Neuenheimer Feld 224 69120 Heidelberg Germany
| | - Samuel E. Sherman
- Roy & Diana Vagelos Laboratories Department of Chemistry University of Pennsylvania Philadelphia Pennsylvania 19104-6323 USA
| | - Xuhao Zhou
- Roy & Diana Vagelos Laboratories Department of Chemistry University of Pennsylvania Philadelphia Pennsylvania 19104-6323 USA
| | - Cody Dazen
- Roy & Diana Vagelos Laboratories Department of Chemistry University of Pennsylvania Philadelphia Pennsylvania 19104-6323 USA
| | - Sabine Vértesy
- Institute of Physiological Chemistry, Faculty of Veterinary Medicine Ludwig-Maximilians-University Munich Veterinaerstr. 13 80539 Munich Germany
| | - Herbert Kaltner
- Institute of Physiological Chemistry, Faculty of Veterinary Medicine Ludwig-Maximilians-University Munich Veterinaerstr. 13 80539 Munich Germany
| | - Michael L. Klein
- Institute for Computational Molecular Science Temple University Philadelphia Pennsylvania 19122 USA
| | - Hans‐Joachim Gabius
- Institute of Physiological Chemistry, Faculty of Veterinary Medicine Ludwig-Maximilians-University Munich Veterinaerstr. 13 80539 Munich Germany
| | - Virgil Percec
- Roy & Diana Vagelos Laboratories Department of Chemistry University of Pennsylvania Philadelphia Pennsylvania 19104-6323 USA
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125
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Kopitz J, Xiao Q, Ludwig A, Romero A, Michalak M, Sherman SE, Zhou X, Dazen C, Vértesy S, Kaltner H, Klein ML, Gabius H, Percec V. Reaction of a Programmable Glycan Presentation of Glycodendrimersomes and Cells with Engineered Human Lectins To Show the Sugar Functionality of the Cell Surface. Angew Chem Int Ed Engl 2017; 56:14677-14681. [DOI: 10.1002/anie.201708237] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2017] [Indexed: 01/17/2023]
Affiliation(s)
- Jürgen Kopitz
- Institute of Pathology, Department of Applied Tumor Biology Faculty of Medicine Ruprecht-Karls-University Heidelberg Im Neuenheimer Feld 224 69120 Heidelberg Germany
| | - Qi Xiao
- Roy & Diana Vagelos Laboratories Department of Chemistry University of Pennsylvania Philadelphia Pennsylvania 19104-6323 USA
| | - Anna‐Kristin Ludwig
- Institute of Physiological Chemistry, Faculty of Veterinary Medicine Ludwig-Maximilians-University Munich Veterinaerstr. 13 80539 Munich Germany
| | - Antonio Romero
- Centro de Investigaciones Biológicas CSIC Ramiro de Maeztu, 9 28040 Madrid Spain
| | - Malwina Michalak
- Institute of Pathology, Department of Applied Tumor Biology Faculty of Medicine Ruprecht-Karls-University Heidelberg Im Neuenheimer Feld 224 69120 Heidelberg Germany
| | - Samuel E. Sherman
- Roy & Diana Vagelos Laboratories Department of Chemistry University of Pennsylvania Philadelphia Pennsylvania 19104-6323 USA
| | - Xuhao Zhou
- Roy & Diana Vagelos Laboratories Department of Chemistry University of Pennsylvania Philadelphia Pennsylvania 19104-6323 USA
| | - Cody Dazen
- Roy & Diana Vagelos Laboratories Department of Chemistry University of Pennsylvania Philadelphia Pennsylvania 19104-6323 USA
| | - Sabine Vértesy
- Institute of Physiological Chemistry, Faculty of Veterinary Medicine Ludwig-Maximilians-University Munich Veterinaerstr. 13 80539 Munich Germany
| | - Herbert Kaltner
- Institute of Physiological Chemistry, Faculty of Veterinary Medicine Ludwig-Maximilians-University Munich Veterinaerstr. 13 80539 Munich Germany
| | - Michael L. Klein
- Institute for Computational Molecular Science Temple University Philadelphia Pennsylvania 19122 USA
| | - Hans‐Joachim Gabius
- Institute of Physiological Chemistry, Faculty of Veterinary Medicine Ludwig-Maximilians-University Munich Veterinaerstr. 13 80539 Munich Germany
| | - Virgil Percec
- Roy & Diana Vagelos Laboratories Department of Chemistry University of Pennsylvania Philadelphia Pennsylvania 19104-6323 USA
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126
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Díez-Revuelta N, Higuero AM, Velasco S, Peñas-de-la-Iglesia M, Gabius HJ, Abad-Rodríguez J. Neurons define non-myelinated axon segments by the regulation of galectin-4-containing axon membrane domains. Sci Rep 2017; 7:12246. [PMID: 28947766 PMCID: PMC5612983 DOI: 10.1038/s41598-017-12295-6] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2017] [Accepted: 09/01/2017] [Indexed: 01/01/2023] Open
Abstract
The mechanism underlying selective myelination of axons versus dendrites or neuronal somata relies on the expression of somatodendritic membrane myelination inhibitors (i.e. JAM2). However, axons still present long unmyelinated segments proposed to contribute to axonal plasticity and higher order brain functions. Why these segments remain unmyelinated is still an unresolved issue. The bifunctional lectin galectin-4 (Gal-4) organizes the transport of axon glycoproteins by binding to N-acetyllactosamine (LacNac) termini of N-glycans. We have shown that Gal-4 is sorted to segmental domains (G4Ds) along the axon surface, reminiscent of these long unmyelinated axon segments in cortical neurons. We report here that oligodendrocytes (OLGs) do not deposit myelin on Gal-4 covered surfaces or myelinate axonal G4Ds. In addition, Gal-4 interacts and co-localizes in G4Ds with contactin-1, a marker of another type of non-myelinated segments, the nodes of Ranvier. Neither Gal-4 expression nor G4D dimensions are affected by myelin extracts or myelinating OLGs, but are reduced with neuron maturation. As in vitro, Gal-4 is consistently segregated from myelinated structures in the brain. Our data shape the novel concept that neurons establish axon membrane domains expressing Gal-4, the first inhibitor of myelination identified in axons, whose regulated boundaries delineate myelination-incompetent axon segments along development.
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Affiliation(s)
- Natalia Díez-Revuelta
- Membrane Biology and Axonal Repair Laboratory, Hospital Nacional de Parapléjicos (SESCAM), Finca La Peraleda s/n, E-45071, Toledo, Spain
| | - Alonso M Higuero
- Membrane Biology and Axonal Repair Laboratory, Hospital Nacional de Parapléjicos (SESCAM), Finca La Peraleda s/n, E-45071, Toledo, Spain
| | - Silvia Velasco
- Membrane Biology and Axonal Repair Laboratory, Hospital Nacional de Parapléjicos (SESCAM), Finca La Peraleda s/n, E-45071, Toledo, Spain
| | - María Peñas-de-la-Iglesia
- Membrane Biology and Axonal Repair Laboratory, Hospital Nacional de Parapléjicos (SESCAM), Finca La Peraleda s/n, E-45071, Toledo, Spain
| | - Hans-Joachim Gabius
- Institut für Physiologische Chemie, Tierärztliche Fakultät, Ludwig-Maximilians-Universität, Veterinärstr. 13, D-80539, München, Germany
| | - José Abad-Rodríguez
- Membrane Biology and Axonal Repair Laboratory, Hospital Nacional de Parapléjicos (SESCAM), Finca La Peraleda s/n, E-45071, Toledo, Spain.
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127
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Hu Y, Beshr G, Garvey CJ, Tabor RF, Titz A, Wilkinson BL. Photoswitchable Janus glycodendrimer micelles as multivalent inhibitors of LecA and LecB from Pseudomonas aeruginosa. Colloids Surf B Biointerfaces 2017; 159:605-612. [PMID: 28858663 DOI: 10.1016/j.colsurfb.2017.08.016] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2017] [Revised: 07/31/2017] [Accepted: 08/10/2017] [Indexed: 12/18/2022]
Abstract
The first example of the self-assembly and lectin binding properties of photoswitchable glycodendrimer micelles is reported. Light-addressable micelles were assembled from a library of 12 amphiphilic Janus glycodendrimers composed of variable carbohydrate head groups and hydrophobic tail groups linked to an azobenzene core. Spontaneous association in water gave cylindrical micelles with uniform size distribution as determined by dynamic light scattering (DLS) and small angle neutron scattering (SANS). Trans-cis photoisomerization of the azobenzene dendrimer core was used to probe the self-assembly behaviour and lectin binding properties of cylindrical micelles, revealing moderate-to-potent inhibition of lectins LecA and LecB from Pseudomonas aeruginosa.
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Affiliation(s)
- Yingxue Hu
- School of Chemistry, Monash University, Victoria 3800, Australia
| | - Ghamdan Beshr
- Chemical Biology of Carbohydrates, Helmholtz Institute for Pharmaceutical Research Saarland (HIPS), D-66123 Saarbrücken, Germany; Deutsches Zentrum für Infektionsforschung, Standort Hannover, Braunschweig, Germany
| | - Christopher J Garvey
- Australian Centre for Neutron scattering, ANSTO, Lucas Heights, New South Wales 2234, Australia
| | - Rico F Tabor
- School of Chemistry, Monash University, Victoria 3800, Australia
| | - Alexander Titz
- Chemical Biology of Carbohydrates, Helmholtz Institute for Pharmaceutical Research Saarland (HIPS), D-66123 Saarbrücken, Germany; Deutsches Zentrum für Infektionsforschung, Standort Hannover, Braunschweig, Germany
| | - Brendan L Wilkinson
- School of Science and Technology, the University of New England, New South Wales 2351, Australia.
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128
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Janus dendrimersomes coassembled from fluorinated, hydrogenated, and hybrid Janus dendrimers as models for cell fusion and fission. Proc Natl Acad Sci U S A 2017; 114:E7045-E7053. [PMID: 28784782 DOI: 10.1073/pnas.1708380114] [Citation(s) in RCA: 140] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
Abstract
A three-component system of Janus dendrimers (JDs) including hydrogenated, fluorinated, and hybrid hydrogenated-fluorinated JDs are reported to coassemble by film hydration at specific ratios into an unprecedented class of supramolecular Janus particles (JPs) denoted Janus dendrimersomes (JDSs). They consist of a dumbbell-shaped structure composed of an onion-like hydrogenated vesicle and an onion-like fluorinated vesicle tethered together. The synthesis of dye-tagged analogs of each JD component enabled characterization of JDS architectures with confocal fluorescence microscopy. Additionally, a simple injection method was used to prepare submicron JDSs, which were imaged with cryogenic transmission electron microscopy (cryo-TEM). As reported previously, different ratios of the same three-component system yielded a variety of structures including homogenous onion-like vesicles, core-shell structures, and completely self-sorted hydrogenated and fluorinated vesicles. Taken together with the JDSs reported herein, a self-sorting pathway is revealed as a function of the relative concentration of the hybrid JD, which may serve to stabilize the interface between hydrogenated and fluorinated bilayers. The fission-like pathway suggests the possibility of fusion and fission processes in biological systems that do not require the assistance of proteins but instead may result from alterations in the ratios of membrane composition.
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129
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Taabache S, Bertin A. Vesicles from Amphiphilic Dumbbells and Janus Dendrimers: Bioinspired Self-Assembled Structures for Biomedical Applications. Polymers (Basel) 2017; 9:E280. [PMID: 30970958 PMCID: PMC6432481 DOI: 10.3390/polym9070280] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2017] [Revised: 07/02/2017] [Accepted: 07/06/2017] [Indexed: 12/18/2022] Open
Abstract
The current review focuses on vesicles obtained from the self-assembly of two types of dendritic macromolecules, namely amphiphilic Janus dendrimers (forming dendrimersomes) and amphiphilic dumbbells. In the first part, we will present some synthetic strategies and the various building blocks that can be used to obtain dendritic-based macromolecules, thereby showing their structural versatility. We put our focus on amphiphilic Janus dendrimers and amphiphilic dumbbells that form vesicles in water but we also encompass vesicles formed thereof in organic solvents. The second part of this review deals with the production methods of these vesicles at the nanoscale but also at the microscale. Furthermore, the influence of various parameters (intrinsic to the amphiphilic JD and extrinsic-from the environment) on the type of vesicle formed will be discussed. In the third part, we will review the numerous biomedical applications of these vesicles of nano- or micron-size.
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Affiliation(s)
- Soraya Taabache
- Federal Institute for Materials Research and Testing (BAM), Department 6.0, D-12205 Berlin, Germany.
- Fraunhofer ICT-IMM, D-55129 Mainz, Germany.
| | - Annabelle Bertin
- Federal Institute for Materials Research and Testing (BAM), Department 6.0, D-12205 Berlin, Germany.
- Institute of Chemistry and Biochemistry, Freie Universität Berlin, D-14195 Berlin, Germany.
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130
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Gabius HJ. The sugar code: Why glycans are so important. Biosystems 2017; 164:102-111. [PMID: 28709806 DOI: 10.1016/j.biosystems.2017.07.003] [Citation(s) in RCA: 65] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2017] [Accepted: 07/05/2017] [Indexed: 02/07/2023]
Abstract
The cell surface is the platform for presentation of biochemical signals that are required for intercellular communication. Their profile necessarily needs to be responsive to internal and external factors in a highly dynamic manner. The structural features of the signals must meet the criterion of high-density information coding in a minimum of space. Thus, only biomolecules that can generate many different oligomers ('words') from few building blocks ('letters') qualify to meet this challenge. Examining the respective properties of common biocompounds that form natural oligo- and polymers comparatively, starting with nucleotides and amino acids (the first and second alphabets of life), comes up with sugars as clear frontrunner. The enzymatic machinery for the biosynthesis of sugar chains can indeed link monosaccharides, the letters of the third alphabet of life, in a manner to reach an unsurpassed number of oligomers (complex carbohydrates or glycans). Fittingly, the resulting glycome of a cell can be likened to a fingerprint. Conjugates of glycans with proteins and sphingolipids (glycoproteins and glycolipids) are ubiquitous in Nature. This implies a broad (patho)physiologic significance. By looking at the signals, at the writers and the erasers of this information as well as its readers and ensuing consequences, this review intends to introduce a broad readership to the principles of the concept of the sugar code.
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Affiliation(s)
- Hans-Joachim Gabius
- Institute of Physiological Chemistry, Faculty of Veterinary Medicine, Ludwig-Maximilians-University Munich, Veterinärstraße 13, 80539 Munich, Germany.
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131
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Toraskar S, Gade M, Sangabathuni S, Thulasiram HV, Kikkeri R. Exploring the Influence of Shapes and Heterogeneity of Glyco-Gold Nanoparticles on Bacterial Binding for Preventing Infections. ChemMedChem 2017; 12:1116-1124. [DOI: 10.1002/cmdc.201700218] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2017] [Revised: 06/20/2017] [Indexed: 12/14/2022]
Affiliation(s)
- Suraj Toraskar
- Department of Chemistry; Indian Institute of Science Education and Research, Dr. Homi Bhabha Road; Pune 411008 India
| | - Madhuri Gade
- Department of Chemistry; Indian Institute of Science Education and Research, Dr. Homi Bhabha Road; Pune 411008 India
| | - Sivakoti Sangabathuni
- Department of Chemistry; Indian Institute of Science Education and Research, Dr. Homi Bhabha Road; Pune 411008 India
| | - Hirekodathakallu V. Thulasiram
- Chemical Biology Unit, Division of Organic Chemistry; CSIR-National Chemical Laboratory; Dr. Homi Bhabha Road Pune 411008 India
| | - Raghavendra Kikkeri
- Department of Chemistry; Indian Institute of Science Education and Research, Dr. Homi Bhabha Road; Pune 411008 India
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132
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Bivalent O -glycoside mimetics with S /disulfide/ Se substitutions and aromatic core: Synthesis, molecular modeling and inhibitory activity on biomedically relevant lectins in assays of increasing physiological relevance. Bioorg Med Chem 2017; 25:3158-3170. [DOI: 10.1016/j.bmc.2017.04.011] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2017] [Revised: 03/30/2017] [Accepted: 04/03/2017] [Indexed: 12/13/2022]
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133
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Nummelin S, Selin M, Legrand S, Ropponen J, Seitsonen J, Nykänen A, Koivisto J, Hirvonen J, Kostiainen MA, Bimbo LM. Modular synthesis of self-assembling Janus-dendrimers and facile preparation of drug-loaded dendrimersomes. NANOSCALE 2017; 9:7189-7198. [PMID: 28513636 DOI: 10.1039/c6nr08102a] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Materials and methods aimed at the next generation of nanoscale carriers for drugs and other therapeutics are currently in great demand. Yet, creating these precise molecular arrangements in a feasible and straightforward manner represents a remarkable challenge. Herein we report a modular synthetic route for amphiphilic Janus-dendrimers via a copper-catalyzed click reaction (CuAAC) and a facile procedure, using simple injection, to obtain highly uniform dendrimersomes with efficient loading of the model drug compound propranolol. The resulting assemblies were analyzed by dynamic light scattering and cryogenic transmission electron microscopy revealing the formation of unilamellar and multilamellar dendrimersomes. The formation of a bilayer structure was confirmed using cryo-TEM and confocal microscopy visualization of an encapsulated solvatochromic dye (Nile Red). The dendrimersomes reported here are tunable in size, stable over time and display robust thermal stability in aqueous media. Our results expand the scope of dendrimer-based supramolecular colloidal systems and offer the means for one-step fabrication of drug-loaded dendrimersomes in the size range of 90-200 nm, ideal for biomedical applications.
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Affiliation(s)
- Sami Nummelin
- Biohybrid Materials, Department of Bioproducts and Biosystems, Aalto University, FI-00076, Finland.
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134
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Dosekova E, Filip J, Bertok T, Both P, Kasak P, Tkac J. Nanotechnology in Glycomics: Applications in Diagnostics, Therapy, Imaging, and Separation Processes. Med Res Rev 2017; 37:514-626. [PMID: 27859448 PMCID: PMC5659385 DOI: 10.1002/med.21420] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2016] [Revised: 09/08/2016] [Accepted: 09/21/2016] [Indexed: 12/14/2022]
Abstract
This review comprehensively covers the most recent achievements (from 2013) in the successful integration of nanomaterials in the field of glycomics. The first part of the paper addresses the beneficial properties of nanomaterials for the construction of biosensors, bioanalytical devices, and protocols for the detection of various analytes, including viruses and whole cells, together with their key characteristics. The second part of the review focuses on the application of nanomaterials integrated with glycans for various biomedical applications, that is, vaccines against viral and bacterial infections and cancer cells, as therapeutic agents, for in vivo imaging and nuclear magnetic resonance imaging, and for selective drug delivery. The final part of the review describes various ways in which glycan enrichment can be effectively done using nanomaterials, molecularly imprinted polymers with polymer thickness controlled at the nanoscale, with a subsequent analysis of glycans by mass spectrometry. A short section describing an active glycoprofiling by microengines (microrockets) is covered as well.
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Affiliation(s)
- Erika Dosekova
- Department of Glycobiotechnology, Institute of ChemistrySlovak Academy of SciencesDubravska cesta 9845 38BratislavaSlovakia
| | - Jaroslav Filip
- Center for Advanced MaterialsQatar UniversityP.O. Box 2713DohaQatar
| | - Tomas Bertok
- Department of Glycobiotechnology, Institute of ChemistrySlovak Academy of SciencesDubravska cesta 9845 38BratislavaSlovakia
| | - Peter Both
- School of Chemistry, Manchester Institute of BiotechnologyThe University of Manchester131 Princess StreetManchesterM1 7DNUK
| | - Peter Kasak
- Center for Advanced MaterialsQatar UniversityP.O. Box 2713DohaQatar
| | - Jan Tkac
- Department of Glycobiotechnology, Institute of ChemistrySlovak Academy of SciencesDubravska cesta 9845 38BratislavaSlovakia
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135
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Manning JC, García Caballero G, Knospe C, Kaltner H, Gabius HJ. Network analysis of adhesion/growth-regulatory galectins and their binding sites in adult chicken retina and choroid. J Anat 2017; 231:23-37. [PMID: 28425099 DOI: 10.1111/joa.12612] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/27/2017] [Indexed: 12/22/2022] Open
Abstract
The highly ordered multilayered organization of the adult chicken retina is a suitable test model for examining zonal distribution of the members of a bioeffector family. Based on the concept of the sugar code, the functional pairing of glycan epitopes with cognate receptors (lectins) is emerging as a means to explain the control of diverse physiological activities. Having recently completed the biochemical characterization of all seven adhesion/growth-regulatory galectins present in chicken, it was possible to establish how the individual characteristics of their expression profiles add up to shape the galectin network, which until now has not been defined at this level of complexity. This information will also have relevance in explaining the region-specific presence of glycan determinants in the retina, as illustrated in the first part of this study using a panel of nine plant/fungal agglutinins. The following systematic monitoring of the galectins yielded patterns for which quantitative and qualitative differences were detected. Obviously, positivity in distinct layers is not confined to a single protein of this family, e.g. CG-1A, CG-3 or CG-8. These results underline the requirement for network analysis for these proteins that can functionally interact in additive or antagonistic modes. Labeling of the tissue galectins facilitated profiling of their accessible binding sites. It also revealed differences among the galectin family members, highlighting the ability of this method to define binding properties on the level of tissue sections. Methodologically, the detection of endogenous lectins intimates that cognate glycans can become inaccessible, a notable caveat for lectin histochemical studies.
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Affiliation(s)
- Joachim C Manning
- Institute of Physiological Chemistry, Faculty of Veterinary Medicine, Ludwig-Maximilians-University Munich, Munich, Germany
| | - Gabriel García Caballero
- Institute of Physiological Chemistry, Faculty of Veterinary Medicine, Ludwig-Maximilians-University Munich, Munich, Germany
| | - Clemens Knospe
- Institute of Anatomy, Histology and Embryology, Faculty of Veterinary Medicine, Ludwig-Maximilians-University Munich, Munich, Germany
| | - Herbert Kaltner
- Institute of Physiological Chemistry, Faculty of Veterinary Medicine, Ludwig-Maximilians-University Munich, Munich, Germany
| | - Hans-Joachim Gabius
- Institute of Physiological Chemistry, Faculty of Veterinary Medicine, Ludwig-Maximilians-University Munich, Munich, Germany
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136
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Sherman SE, Xiao Q, Percec V. Mimicking Complex Biological Membranes and Their Programmable Glycan Ligands with Dendrimersomes and Glycodendrimersomes. Chem Rev 2017; 117:6538-6631. [PMID: 28417638 DOI: 10.1021/acs.chemrev.7b00097] [Citation(s) in RCA: 128] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
Synthetic vesicles have been assembled and coassembled from phospholipids, their modified versions, and other single amphiphiles into liposomes, and from block copolymers into polymersomes. Their time-consuming synthesis and preparation as stable, monodisperse, and biocompatible liposomes and polymersomes called for the elaboration of new synthetic methodologies. Amphiphilic Janus dendrimers (JDs) and glycodendrimers (JGDs) represent the most recent self-assembling amphiphiles capable of forming monodisperse, stable, and multifunctional unilamellar and multilamellar onion-like vesicles denoted dendrimersomes (DSs) and glycodendrimersomes (GDSs), dendrimercubosomes (DCs), glycodendrimercubosomes (GDCs), and other complex architectures. Amphiphilic JDs consist of hydrophobic dendrons connected to hydrophilic dendrons and can be thought of as monodisperse oligomers of a single amphiphile. They can be functionalized with a variety of molecules such as dyes, and, in the case of JGDs, with carbohydrates. Their iterative modular synthesis provides efficient access to sequence control at the molecular level, resulting in topologies with specific epitope sequence and density. DSs, GDSs, and other architectures from JDs and JGDs serve as powerful tools for mimicking biological membranes and for biomedical applications such as targeted drug and gene delivery and theranostics. This Review covers all aspects of the synthesis of JDs and JGDs and their biological activity and applications after assembly in aqueous media.
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Affiliation(s)
- Samuel E Sherman
- Roy & Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania , Philadelphia, Pennsylvania 19104-6323, United States
| | - Qi Xiao
- Roy & Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania , Philadelphia, Pennsylvania 19104-6323, United States
| | - Virgil Percec
- Roy & Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania , Philadelphia, Pennsylvania 19104-6323, United States
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137
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Corfield A. Eukaryotic protein glycosylation: a primer for histochemists and cell biologists. Histochem Cell Biol 2017; 147:119-147. [PMID: 28012131 PMCID: PMC5306191 DOI: 10.1007/s00418-016-1526-4] [Citation(s) in RCA: 90] [Impact Index Per Article: 12.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/25/2016] [Indexed: 12/21/2022]
Abstract
Proteins undergo co- and posttranslational modifications, and their glycosylation is the most frequent and structurally variegated type. Histochemically, the detection of glycan presence has first been performed by stains. The availability of carbohydrate-specific tools (lectins, monoclonal antibodies) has revolutionized glycophenotyping, allowing monitoring of distinct structures. The different types of protein glycosylation in Eukaryotes are described. Following this educational survey, examples where known biological function is related to the glycan structures carried by proteins are given. In particular, mucins and their glycosylation patterns are considered as instructive proof-of-principle case. The tissue and cellular location of glycoprotein biosynthesis and metabolism is reviewed, with attention to new findings in goblet cells. Finally, protein glycosylation in disease is documented, with selected examples, where aberrant glycan expression impacts on normal function to let disease pathology become manifest. The histological applications adopted in these studies are emphasized throughout the text.
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Affiliation(s)
- Anthony Corfield
- Mucin Research Group, School of Clinical Sciences, Bristol Royal Infirmary, University of Bristol, Bristol, BS2 8HW, UK.
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138
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Yao X, Zhu Q, Li C, Yuan K, Che R, Zhang P, Yang C, Lu W, Wu W, Jiang X. Carbamoylmannose enhances the tumor targeting ability of supramolecular nanoparticles formed through host-guest complexation of a pair of homopolymers. J Mater Chem B 2017; 5:834-848. [PMID: 32263852 DOI: 10.1039/c6tb02863b] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Conjugation of sugars to antitumor drugs can facilitate drug binding to tumor cells and the saccharide motifs of bleomycins (BLMs) play a crucial role in tumor-seeking. Here, we synthesized BLM monosaccharide, carbamoylmannose, and subsequently prepared carbamoylmannose decorated platinum-incorporating supramolecular nanoparticles formed through the host-guest complexation of poly(N-vinylpyrrolidone) and poly(aspartic acid). The targeting effects of carbamoylmannose decorated supramolecular nanoparticles in various cancer cells and tumor-bearing mice were investigated. It was found that the nanoparticles showed a specific in vitro and in vivo carbamoylmannose-mediated cellular uptake and drug delivery. The cellular uptake of the nanoparticles followed the receptor-mediated endocytosis mechanism in cancer cells but not in healthy cells. In a murine hepatic H22 tumor model, it was demonstrated that the carbamoylmannose moiety increased the plasma concentration, tumor targeting ability and tumor penetration of the nanoparticles, leading to high tumor accumulation and superior antitumor efficacy. This carbamoylmannose molecule may bring an opportunity to design and construct inexpensive but highly efficient drug and gene delivery systems in the future.
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Affiliation(s)
- Xikuang Yao
- Department of Polymer Science & Engineering, College of Chemistry & Chemical Engineering, Nanjing University, Nanjing, 210023, P. R. China.
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139
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Li C, Chen C, Li S, Rasheed T, Huang P, Huang T, Zhang Y, Huang W, Zhou Y. Self-assembly and functionalization of alternating copolymer vesicles. Polym Chem 2017. [DOI: 10.1039/c7py00908a] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
This work reports novel alternating copolymer vesicles and their facile functionalization with carboxyl and amino groups through click copolymerization.
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Affiliation(s)
- Chuanlong Li
- School of Chemistry and Chemical Engineering
- State Key Laboratory of Metal Matrix Composites
- Shanghai Jiao Tong University
- Shanghai 200240
- China
| | - Chuanshuang Chen
- School of Chemistry and Chemical Engineering
- State Key Laboratory of Metal Matrix Composites
- Shanghai Jiao Tong University
- Shanghai 200240
- China
| | - Shanlong Li
- School of Chemistry and Chemical Engineering
- State Key Laboratory of Metal Matrix Composites
- Shanghai Jiao Tong University
- Shanghai 200240
- China
| | - Tahir Rasheed
- School of Chemistry and Chemical Engineering
- State Key Laboratory of Metal Matrix Composites
- Shanghai Jiao Tong University
- Shanghai 200240
- China
| | - Ping Huang
- School of Chemistry and Chemical Engineering
- State Key Laboratory of Metal Matrix Composites
- Shanghai Jiao Tong University
- Shanghai 200240
- China
| | - Tong Huang
- School of Chemistry and Chemical Engineering
- State Key Laboratory of Metal Matrix Composites
- Shanghai Jiao Tong University
- Shanghai 200240
- China
| | - Yinglin Zhang
- School of Chemistry and Chemical Engineering
- State Key Laboratory of Metal Matrix Composites
- Shanghai Jiao Tong University
- Shanghai 200240
- China
| | - Wei Huang
- School of Chemistry and Chemical Engineering
- State Key Laboratory of Metal Matrix Composites
- Shanghai Jiao Tong University
- Shanghai 200240
- China
| | - Yongfeng Zhou
- School of Chemistry and Chemical Engineering
- State Key Laboratory of Metal Matrix Composites
- Shanghai Jiao Tong University
- Shanghai 200240
- China
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140
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Hern FY, Auty SER, Andrén OCJ, Malkoch M, Rannard SP. Model studies of the sequential and simultaneous statistical modification of dendritic functional groups and their implications within complex polymer architecture synthesis. Polym Chem 2017. [DOI: 10.1039/c7py00140a] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Accurate analysis of model systems by MALDI-TOF has established the diversity of structures formed during post-synthesis functionalisation of complex polymer architectures. NMR studies alone are shown to be highly misleading.
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Affiliation(s)
- Faye Y. Hern
- Department of Chemistry
- University of Liverpool
- Liverpool L69 7ZD
- UK
| | - Sam E. R. Auty
- Department of Chemistry
- University of Liverpool
- Liverpool L69 7ZD
- UK
| | - Oliver C. J. Andrén
- KTH Royal Institute of Technology
- School of Chemical Engineering
- Department of Fibre and Polymer Technology
- SE-100 44 Stockholm
- Sweden
| | - Michael Malkoch
- KTH Royal Institute of Technology
- School of Chemical Engineering
- Department of Fibre and Polymer Technology
- SE-100 44 Stockholm
- Sweden
| | - Steve P. Rannard
- Department of Chemistry
- University of Liverpool
- Liverpool L69 7ZD
- UK
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141
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Herzberger J, Leibig D, Langhanki J, Moers C, Opatz T, Frey H. “Clickable PEG” via anionic copolymerization of ethylene oxide and glycidyl propargyl ether. Polym Chem 2017. [DOI: 10.1039/c7py00173h] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
First one-step synthesis of poly(ethylene glycol) bearing multiple alkyne-groups along the polyether backbone and subsequent generation of PEG-glycopolymers by CuAAC.
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Affiliation(s)
- Jana Herzberger
- Institute of Organic Chemistry
- Johannes Gutenberg University Mainz
- D-55128 Mainz
- Germany
- Graduate School Materials Science in Mainz
| | - Daniel Leibig
- Institute of Organic Chemistry
- Johannes Gutenberg University Mainz
- D-55128 Mainz
- Germany
- Graduate School Materials Science in Mainz
| | - Jens Langhanki
- Institute of Organic Chemistry
- Johannes Gutenberg University Mainz
- D-55128 Mainz
- Germany
| | - Christian Moers
- Institute of Organic Chemistry
- Johannes Gutenberg University Mainz
- D-55128 Mainz
- Germany
- Graduate School Materials Science in Mainz
| | - Till Opatz
- Institute of Organic Chemistry
- Johannes Gutenberg University Mainz
- D-55128 Mainz
- Germany
| | - Holger Frey
- Institute of Organic Chemistry
- Johannes Gutenberg University Mainz
- D-55128 Mainz
- Germany
- Graduate School Materials Science in Mainz
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142
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FUKUDA T, MIURA Y. Biofunctional Characteristics of Dendritic Glycocluster Modified Surfaces. KOBUNSHI RONBUNSHU 2017. [DOI: 10.1295/koron.2016-0046] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Tomohiro FUKUDA
- Department of Applied Chemistry and Chemical Engineering, National Institute of Technology, Toyama College
- Department of Chemical Engineering, Kyushu University
| | - Yoshiko MIURA
- Department of Chemical Engineering, Kyushu University
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143
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Patil NG, Basutkar NB, Ambade AV. Copper and silver nanoparticles stabilized by bistriazole-based dendritic amphiphile micelles for 4-nitrophenol reduction. NEW J CHEM 2017. [DOI: 10.1039/c7nj00605e] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Copper and silver nanoparticles stabilized on dendritic amphiphiles catalyzed 4-nitrophenol reduction at the ppm level, with particle size influencing catalytic efficiency.
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Affiliation(s)
- Naganath G. Patil
- Polymer Science and Engineering Division
- CSIR-National Chemical Laboratory
- Dr Homi Bhabha Road
- Pune-411008
- India
| | - Nitin B. Basutkar
- Polymer Science and Engineering Division
- CSIR-National Chemical Laboratory
- Dr Homi Bhabha Road
- Pune-411008
- India
| | - Ashootosh V. Ambade
- Polymer Science and Engineering Division
- CSIR-National Chemical Laboratory
- Dr Homi Bhabha Road
- Pune-411008
- India
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144
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Bayón C, He N, Deir-Kaspar M, Blasco P, André S, Gabius HJ, Rumbero Á, Jiménez-Barbero J, Fessner WD, Hernáiz MJ. Direct Enzymatic Branch-End Extension of Glycocluster-Presented Glycans: An Effective Strategy for Programming Glycan Bioactivity. Chemistry 2016; 23:1623-1633. [DOI: 10.1002/chem.201604550] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2016] [Indexed: 12/12/2022]
Affiliation(s)
- Carlos Bayón
- Department of Organic and Pharmaceutical Chemistry; Faculty of Pharmacy; Complutense University; Plaza Ramón y CajaL s/n 28040 Madrid Spain
| | - Ning He
- Department of Organic Chemistry and Biochemistry; Technische Universität Darmstadt, A; larich-Weiss-Strasse 4 64287 Darmstadt Germany
| | - Mario Deir-Kaspar
- Department of Organic and Pharmaceutical Chemistry; Faculty of Pharmacy; Complutense University; Plaza Ramón y CajaL s/n 28040 Madrid Spain
| | - Pilar Blasco
- Departamento de Ciencia de Proteínas; CIB-CSIC; C/Ramiro denMaeztu 9 28040 Madrid Spain
| | - Sabine André
- Institut für Physiologische Chemie; Tierärztliche Fakultät; Ludwig-Maximilians-Universität München; Veterinärstrasse 13 80539 München Germany
| | - Hans-Joachim Gabius
- Institut für Physiologische Chemie; Tierärztliche Fakultät; Ludwig-Maximilians-Universität München; Veterinärstrasse 13 80539 München Germany
| | - Ángel Rumbero
- Department of Organic Chemistry; Faculty of Science; Autonoma University of Madrid; Spain
| | - Jesús Jiménez-Barbero
- Departamento de Ciencia de Proteínas; CIB-CSIC; C/Ramiro denMaeztu 9 28040 Madrid Spain
- Ikerbasque; Basque Foundation for Science; Maria Diaz de Haro 13 48009 Bilbao Spain
- Department of Organic Chemistry II, Faculty of Science & Technology; University of the Basque Country; 48940 Leioa Bizkaia Spain
| | - Wolf-Dieter Fessner
- Department of Organic Chemistry and Biochemistry; Technische Universität Darmstadt, A; larich-Weiss-Strasse 4 64287 Darmstadt Germany
| | - María J. Hernáiz
- Department of Organic and Pharmaceutical Chemistry; Faculty of Pharmacy; Complutense University; Plaza Ramón y CajaL s/n 28040 Madrid Spain
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145
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Xiao Q, Wang Z, Williams D, Leowanawat P, Peterca M, Sherman SE, Zhang S, Hammer DA, Heiney PA, King SR, Markovitz DM, André S, Gabius HJ, Klein ML, Percec V. Why Do Membranes of Some Unhealthy Cells Adopt a Cubic Architecture? ACS CENTRAL SCIENCE 2016; 2:943-953. [PMID: 28058284 PMCID: PMC5200934 DOI: 10.1021/acscentsci.6b00284] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/23/2016] [Indexed: 05/09/2023]
Abstract
Nonlamellar lipid arrangements, including cubosomes, appear in unhealthy cells, e.g., when they are subject to stress, starvation, or viral infection. The bioactivity of cubosomes-nanoscale particles exhibiting bicontinuous cubic structures-versus more common vesicles is an unexplored area due to lack of suitable model systems. Here, glycodendrimercubosomes (GDCs)-sugar-presenting cubosomes assembled from Janus glycodendrimers by simple injection into buffer-are proposed as mimics of biological cubic membranes. The bicontinuous cubic GDC architecture has been demonstrated by electron tomography. The stability of these GDCs in buffer enabled studies on lectin-dependent agglutination, revealing significant differences compared with the vesicular glycodendrimersome (GDS) counterpart. In particular, GDCs showed an increased activity toward concanavalin A, as well as an increased sensitivity and selectivity toward two variants of banana lectins, a wild-type and a genetically modified variant, which is not exhibited by GDSs. These results suggest that cells may adapt under unhealthy conditions by undergoing a transformation from lamellar to cubic membranes as a method of defense.
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Affiliation(s)
- Qi Xiao
- Roy
& Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, United States
| | - Zhichun Wang
- Department
of Bioengineering, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6321, United States
| | - Dewight Williams
- Electron
Microscopy Resource Laboratory, Department of Biochemistry and Biophysics,
Perelman School of Medicine, University
of Pennsylvania, Philadelphia, Pennsylvania 19104-6082, United States
| | - Pawaret Leowanawat
- Roy
& Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, United States
| | - Mihai Peterca
- Roy
& Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, United States
| | - Samuel E. Sherman
- Roy
& Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, United States
| | - Shaodong Zhang
- Roy
& Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, United States
| | - Daniel A. Hammer
- Department
of Bioengineering, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6321, United States
- Department
of Chemical and Biomolecular Engineering, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6391, United States
| | - Paul A. Heiney
- Department
of Physics and Astronomy, University of
Pennsylvania, Philadelphia, Pennsylvania 19104-6396, United States
| | - Steven R. King
- Division
of Infectious Diseases, Department of Internal Medicine, Program in
Immunology, University of Michigan, Ann Arbor, Michigan 48109, United States
| | - David M. Markovitz
- Division
of Infectious Diseases, Department of Internal Medicine, Program in
Immunology, University of Michigan, Ann Arbor, Michigan 48109, United States
| | - Sabine André
- Institute
of Physiological Chemistry, Faculty of Veterinary Medicine, Ludwig-Maximilians-University, Veterinärstrasse 13, 80539 Munich, Germany
| | - Hans-Joachim Gabius
- Institute
of Physiological Chemistry, Faculty of Veterinary Medicine, Ludwig-Maximilians-University, Veterinärstrasse 13, 80539 Munich, Germany
| | - Michael L. Klein
- Institute
of Computational Molecular Science, Temple
University, Philadelphia, Pennsylvania 19122, United States
| | - Virgil Percec
- Roy
& Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, United States
- E-mail:
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146
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Teaming up synthetic chemistry and histochemistry for activity screening in galectin-directed inhibitor design. Histochem Cell Biol 2016; 147:285-301. [PMID: 28013366 DOI: 10.1007/s00418-016-1525-5] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/23/2016] [Indexed: 01/08/2023]
Abstract
A hallmark of endogenous lectins is their ability to select a few distinct glycoconjugates as counterreceptors for functional pairing from the natural abundance of cellular glycoproteins and glycolipids. As a consequence, assays to assess inhibition of lectin binding should necessarily come as close as possible to the physiological situation, to characterize an impact of a synthetic compound on biorelevant binding with pharmaceutical perspective. We here introduce in a proof-of-principle manner work with sections of paraffin-embedded tissue (jejunum, epididymis) and labeled adhesion/growth-regulatory galectins, harboring one (galectin-1 and galectin-3) or two (galectin-8) types of lectin domain. Six pairs of synthetic lactosides from tailoring of the headgroup (3'-O-sulfation) and the aglycone (β-methyl to aromatic S- and O-linked extensions) as well as three bi- to tetravalent glycoclusters were used as test compounds. Varying extents of reduction in staining intensity by synthetic compounds relative to unsubstituted/free lactose proved the applicability and sensitivity of the method. Flanking cytofluorimetric assays on lectin binding to native cells gave similar grading, excluding a major impact of tissue fixation. The experiments revealed cell/tissue binding of galectin-8 preferentially via one domain, depending on the cell type so that the effect of an inhibitor in a certain context cannot be extrapolated to other cells/tissues. Moreover, the work with the other galectins attests that this assay enables comprehensive analysis of the galectin network in serial tissue sections to determine overlaps and regional differences in inhibitory profiles.
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147
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Abstract
An experimental observation on selecting binding partners underlies the introduction of the term 'lectin'. Agglutination of erythrocytes depending on their blood-group status revealed the presence of activities in plant extracts that act in an epitope-specific manner like antibodies. As it turned out, their binding partners on the cell surface are carbohydrates of glycoconjugates. By definition, lectins are glycan-specific (mono- or oligosaccharides presented by glycoconjugates or polysaccharides) receptors, distinguished from antibodies, from enzymes using carbohydrates as substrates and from transporters of free saccharides. They are ubiquitous in Nature and structurally widely diversified. More than a dozen types of folding pattern have evolved for proteins that bind glycans. Used as tool, this capacity facilitates versatile mapping of glycan presence so that plant/fungal and also animal/human lectins have found a broad spectrum of biomedical applications. The functional pairing with physiological counterreceptors is involved in a wide range of cellular activities from cell adhesion, glycoconjugate trafficking to growth regulation and lets lectins act as sensors/effectors in host defense.
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148
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Lipid glycosylation: a primer for histochemists and cell biologists. Histochem Cell Biol 2016; 147:175-198. [DOI: 10.1007/s00418-016-1518-4] [Citation(s) in RCA: 64] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/23/2016] [Indexed: 12/14/2022]
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149
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Abstract
Carbohydrates have physiological importance far beyond their roles as source of energy (glycolysis) and activated hydrogen for synthesis (pentosephosphate pathway) or as constituent of the backbone of nucleic acids and of cell wall polysaccharides. The extent of compositional and structural variability of their oligomers (glycans) is unsurpassed in Nature due to the unique property of independently combining the following parameters with sequence: anomeric status, linkage positions, ring size, addition of branches and site-specific introduction of substitutions. The monosaccharides (letters of the third alphabet of life) thus generate 'words' (signals) of high-density coding capacity. These 'words' are part of the glycans on proteins and lipids, and the glycome represented by these 'words' in their entirety has cell type-dependent features. The often limited intramolecular flexibility of oligosaccharides along with an abundance of contact points for intermolecular interactions is ideal for binding processes. Glycan-based 'words' can thus be 'read,' and their message translated into cellular effects by receptors called lectins. This journal's special issue covers central aspects of the concept of the sugar code.
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Affiliation(s)
- Hans-Joachim Gabius
- Faculty of Veterinary Medicine, Institute of Physiological Chemistry, Ludwig-Maximilians-University Munich, 80539, Munich, Germany.
| | - Jürgen Roth
- Division of Cell and Molecular Pathology, University of Zurich, 8091, Zurich, Switzerland
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150
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Ho MS, Partridge BE, Sun HJ, Sahoo D, Leowanawat P, Peterca M, Graf R, Spiess HW, Zeng X, Ungar G, Heiney PA, Hsu CS, Percec V. Screening Libraries of Semifluorinated Arylene Bisimides to Discover and Predict Thermodynamically Controlled Helical Crystallization. ACS COMBINATORIAL SCIENCE 2016; 18:723-739. [PMID: 27797481 DOI: 10.1021/acscombsci.6b00143] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Synthesis, structural, and retrostructural analysis of a library containing 16 self-assembling perylene (PBI), 1,6,7,12-tetrachloroperylene (Cl4PBI), naphthalene (NBI), and pyromellitic (PMBI) bisimides functionalized with environmentally friendly AB3 chiral racemic semifluorinated minidendrons at their imide groups via m = 0, 1, 2, and 3 methylene units is reported. These semifluorinated compounds melt at lower temperatures than homologous hydrogenated compounds, permitting screening of all their thermotropic phases via structural analysis to discover thermodynamically controlled helical crystallization from propeller-like, cogwheel, and tilted molecules as well as lamellar-like structures. Thermodynamically controlled helical crystallization was discovered for propeller-like PBI, Cl4PBI and NBI with m = 0. Unexpectedly, assemblies of twisted Cl4PBIs exhibit higher order than those of planar PBIs. PBI with m = 1, 2, and 3 form a thermodynamically controlled columnar hexagonal 2D lattice of tilted helical columns with intracolumnar order. PBI and Cl4PBI with m = 1 crystallize via a recently discovered helical cogwheel mechanism, while NBI and PMBI with m = 1 form tilted helical columns. PBI, NBI and PMBI with m = 2 generate lamellar-like structures. 3D and 2D assemblies of PBI with m = 1, 2, and 3, NBI with m = 1 and PMBI with m = 2 exhibit 3.4 Å π-π stacking. The library approach applied here and in previous work enabled the discovery of six assemblies which self-organize via thermodynamic control into 3D and 2D periodic arrays, and provides molecular principles to predict the supramolecular structure of electronically active components.
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Affiliation(s)
- Ming-Shou Ho
- Roy & Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, United States
| | - Benjamin E. Partridge
- Roy & Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, United States
| | - Hao-Jan Sun
- Roy & Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, United States
| | - Dipankar Sahoo
- Roy & Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, United States
| | - Pawaret Leowanawat
- Roy & Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, United States
| | - Mihai Peterca
- Roy & Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, United States
- Department
of Physics and Astronomy, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6396, United States
| | - Robert Graf
- Max-Planck Institute for Polymer Research, 55128 Mainz, Germany
| | - Hans W. Spiess
- Max-Planck Institute for Polymer Research, 55128 Mainz, Germany
| | - Xiangbing Zeng
- Department
of Materials Science and Engineering, University of Sheffield, Sheffield S1 3JD, United Kingdom
| | - Goran Ungar
- Department
of Materials Science and Engineering, University of Sheffield, Sheffield S1 3JD, United Kingdom
- Department
of Physics, Zhejiang Sci-Tech University, Hangzhou 3110018, China
| | - Paul A. Heiney
- Department
of Physics and Astronomy, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6396, United States
| | - Chain-Shu Hsu
- Department
of Applied Chemistry, National Chiao Tung University, 1001 Ta Hsueh
Road, Hsin-Chu 30049, Taiwan
| | - Virgil Percec
- Roy & Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, United States
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