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Affiliation(s)
- Masato Ikeda
- Department of Chemistry and Biomolecular Science, Faculty of Engineering, Gifu University, Gifu 501-1193
- United Graduate School of Drug Discovery and Medical Information Sciences, Gifu University, Gifu 501-1193
- Center for Highly Advanced Integration of Nano and Life Sciences, Gifu University (G-CHAIN), Gifu 501-1193
| | - Marina Kabumoto
- United Graduate School of Drug Discovery and Medical Information Sciences, Gifu University, Gifu 501-1193
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2
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Heyde M, Claeyssens M, Schacht EH. Interaction between Proteins and Polyphosphazene Derivatives Having a Galactose Moiety. Biomacromolecules 2008; 9:672-7. [DOI: 10.1021/bm7010278] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Mieke Heyde
- Polymer Chemistry & Biomaterials Research Group, Ghent University, Krijgslaan 281, S4-bis, 9000 Ghent, Belgium, and Department of Biochemistry, Physiology and Microbiology, Gent University, K. L. Ledeganckstraat 35, 9000 Ghent, Belgium
| | - Marc Claeyssens
- Polymer Chemistry & Biomaterials Research Group, Ghent University, Krijgslaan 281, S4-bis, 9000 Ghent, Belgium, and Department of Biochemistry, Physiology and Microbiology, Gent University, K. L. Ledeganckstraat 35, 9000 Ghent, Belgium
| | - Etienne H. Schacht
- Polymer Chemistry & Biomaterials Research Group, Ghent University, Krijgslaan 281, S4-bis, 9000 Ghent, Belgium, and Department of Biochemistry, Physiology and Microbiology, Gent University, K. L. Ledeganckstraat 35, 9000 Ghent, Belgium
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3
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Hasegawa T, Numata M, Okumura S, Kimura T, Sakurai K, Shinkai S. Carbohydrate-appended curdlans as a new family of glycoclusters with binding properties both for a polynucleotide and lectins. Org Biomol Chem 2007; 5:2404-12. [PMID: 17637960 DOI: 10.1039/b703720a] [Citation(s) in RCA: 59] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Beta-1,3-glucans having carbohydrate-appendages (alpha-D-mannoside, N-acetyl-beta-D-glucosaminide and beta-lactoside) at the C6-position of every repeating unit can be readily prepared from curdlan (a linear beta-1,3-glucan) through regioselective bromination/azidation to afford 6-azido-6-deoxycurdlan followed by chemo-selective Cu(i)-catalyzed [3 + 2]-cycloaddition with various carbohydrate modules having a terminal alkyne. The resultant carbohydrate-appended curdlans can interact with polycytosine to form stable macromolecular complexes consistent with two polysaccharide strands and one polycytosine strand. Furthermore, these macromolecular complexes show strong and specific affinity toward carbohydrate-binding proteins (lectins). Therefore, one can utilize these carbohydrate-appended curdlans as a new family of glycoclusters.
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Affiliation(s)
- Teruaki Hasegawa
- Department of Chemistry and Biochemistry, Graduate School of Engineering, Kyushu University, Motooka 744, Nishi-ku, Fukuoka 819-0395, Japan
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4
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Zatsepin TS, Oretskaya TS. Synthesis and applications of oligonucleotide-carbohydrate conjugates. Chem Biodivers 2007; 1:1401-17. [PMID: 17191787 DOI: 10.1002/cbdv.200490104] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Nowadays, oligonucleotide-carbohydrate conjugates are used in antisense biotechnology and in the study of glycosylated DNA functioning in vitro. The application of mono- and disaccharide phosphoramidites, solid-phase supports with immobilized carbohydrates, glycosylated nucleoside phosphoramidites, and postsynthetic conjugation of reactive sugar derivatives with oligonucleotides for preparation of oligonucleotide-carbohydrate conjugates have been systematically studied. The advantages and disadvantages of these approaches are considered. Possible strategies for synthesis of glycoclusters with different topologies conjugated to DNA are discussed. Applications of oligonucleotide-carbohydrate conjugates are highlighted. Studies of interactions of glycosylated oligonucleotides with proteins and effective cell-specific delivery of oligonucleotide-carbohydrate conjugates are discussed.
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Affiliation(s)
- Timofei S Zatsepin
- Department of Chemistry, M. V. Lomonosov Moscow State University, Leninskie Gory, Moscow, Russia, 119992
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Yan H, Tram K. Glycotargeting to improve cellular delivery efficiency of nucleic acids. Glycoconj J 2007; 24:107-23. [PMID: 17268860 DOI: 10.1007/s10719-006-9023-y] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2006] [Revised: 11/07/2006] [Accepted: 11/14/2006] [Indexed: 10/23/2022]
Abstract
Nucleic acids bearing glycans of various structures have been under vigorous investigation in the past decade. The carbohydrate moieties of such complexes can serve as recognition sites for carbohydrate-binding proteins-lectins-and initiate receptor-mediated endocytosis. Therefore, carbohydrates can enhance cell targeting and internalization of nucleic acids that are associated with them and thus improve the bioavailability of nucleic acids as therapeutic agents. This review summarizes nucleic acid glycosylation in nature and approaches for the preparation of both non-covalently associated and covalently-linked carbohydrate-nucleic acid complexes.
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Affiliation(s)
- Hongbin Yan
- Department of Chemistry, Brock University, 500 Glenridge Ave., St. Catharines, ON, Canada.
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6
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Matsuura K, Hayashi K, Kobayashi K. On−Off Switching of Gene Expression Regulated with Carbohydrate−Lectin Interaction. Biomacromolecules 2005; 6:2533-40. [PMID: 16153090 DOI: 10.1021/bm050255a] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A novel strategy for artificial regulation system of gene expression applying the specific molecular recognition between carbohydrate and lectin is proposed. Plasmid-lactose conjugates (pActin-lactose and pGFP-lactose) prepared via diazocoupling maintained the transcription activity with T7 RNA polymerase. Gel-shift assay showed that the pActin-lactose conjugates were specifically complexed with galactose-specific lectin RCA(120) with a strong binding affinity (K(a) = 7.6 x 10(5) M(-1) per Lac-unit). The complexes were observed to form aggregates of sub-several micrometer size by means of transmission electron microscopy (TEM) and atomic force microscopy (AFM). The activities of transcription and expression of the conjugates were evaluated, respectively, on the basis of the amount of transcript of pActin and the fluorescent intensity of the expressed GFP. These activities were repressed in the presence of an increasing concentration of RCA120, and then recovered by adding lactose, lactosylceramide-containing liposomes, and lactose-carrying polymers to the conjugate-RCA120 complex. Gel-shift assay and TEM observation revealed that the aggregation form of the complex was relaxed partially in the presence of the lactose derivatives, which increased the accessibility of T7 RNA polymerase to result in the recovery of transcription activity.
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Affiliation(s)
- Kazunori Matsuura
- Department of Molecular Design, Graduate School of Engineering, Nagoya University, Chikusa-ku, Nagoya 464-8603, Japan.
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7
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Anada T, Matsunaga H, Karinaga R, Koumoto K, Mizu M, Nakano K, Shinkai S, Sakurai K. Proposal of new modification technique for linear double-stranded DNAs using the polysaccharide schizopyllan. Bioorg Med Chem Lett 2005; 14:5655-9. [PMID: 15482942 DOI: 10.1016/j.bmcl.2004.08.043] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2004] [Accepted: 08/18/2004] [Indexed: 10/26/2022]
Abstract
A natural polysaccharide schizophyllan (SPG) has been known to form a stable complex with poly(dA). We attached a poly(dA)(80) tail to the both ends of a linear double-stranded DNA, which had been prepared from a plasmid DNA vector. The poly(dA) tailed DNA verified to form complex with SPG by gel electrophoresis and atomic force microscopy (AFM). AFM images indicated that the complexes exhibit a dumbbell-like architecture, that is, quite similar to that of adenovirus genome. The complex demonstrated excellent exonuclease resistance, probably because of the protection effect by SPG complexation.
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Affiliation(s)
- Takahisa Anada
- Department of Chemical Process and Environments, The University of Kitakyushu, 1-1 Hibikino, Wakamatu-ku, Kitakyushu, Fukuoka 808-0135, Japan
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8
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Hatano A, Makita S, Kirihara M. Synthesis and redox-active base-pairing properties of DNA incorporating mercapto C-nucleosides. Tetrahedron 2005. [DOI: 10.1016/j.tet.2004.12.038] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Ikeda Y, Kawahara SI, Yoshinari K, Fujita S, Taira K. Specific 3′-Terminal Modification of DNA with a Novel Nucleoside Analogue that Allows a Covalent Linkage of a Nuclear Localization Signal and Enhancement of DNA Stability. Chembiochem 2005; 6:297-303. [PMID: 15678421 DOI: 10.1002/cbic.200400142] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
We report a straightforward method for the site-specific modification of long double-stranded DNA by using a maleimide adduct of deoxycytidine. This novel nucleoside analogue was efficiently incorporated at the 3'-termini of DNA by terminal deoxynucleotidyl transferase (TdT). Thiol-containing compounds can be covalently linked to the maleimide moieties. We added a nuclear localization signal peptide to the 3'-terminal of a 350 bp-long DNA that encoded short-hairpin RNA, and these modifications resulted in the enhancement of silencing activity by RNA interference. This enhancement is mainly attributed to increased stability of the template DNA.
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Affiliation(s)
- Yutaka Ikeda
- Department of Chemistry and Biotechnology, School of Engineering, University of Tokyo, 7-3-1 Hongo, Tokyo 113-8656, Japan
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Murata M, Kaku W, Anada T, Sato Y, Kano T, Maeda M, Katayama Y. Novel DNA/polymer conjugate for intelligent antisense reagent with improved nuclease resistance. Bioorg Med Chem Lett 2004; 13:3967-70. [PMID: 14592486 DOI: 10.1016/j.bmcl.2003.08.062] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Antisense technology provides an effective strategy to inhibit synthesis of the gene product. We prepared a novel antisense reagent comprised of oligodeoxynucleotides (ODN) and a thermo responsive polymer, poly(N-isopropylacrylamide) (PNIPAAm). The conjugate inhibited gene expression in a dose-dependent manner. The ODN-PNIPAAm conjugate demonstrated excellent resistance to S1 nuclease. In particular, PNIPAAm-modified antisense ODN at the 3',5'-ends of the ODN provided complete resistance against nuclease at 37 degrees C, which is above the phase transition temperature of the PNIPAAm side chain. These characteristics of the conjugate suggest it may have potential for use in a new gene delivery system as part of an antisense strategy.
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Affiliation(s)
- Masaharu Murata
- Department of Applied Chemistry, Graduate School of Engineering, Kyushu University, Fukuoka 812-8581, Japan.
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Matsuura K, Hibino M, Yamada Y, Kobayashi K. Construction of glyco-clusters by self-organization of site-specifically glycosylated oligonucleotides and their cooperative amplification of lectin-recognition. J Am Chem Soc 2001; 123:357-8. [PMID: 11456533 DOI: 10.1021/ja001945j] [Citation(s) in RCA: 91] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- K Matsuura
- Department of Molecular Design Graduate School of Engineering Nagoya University, Chikusa, Nagoya 464-8603, Japan
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12
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Phosphoramidite solid-phase synthesis of site-specifically glycosylated oligodeoxynucleotides. Tetrahedron Lett 2000. [DOI: 10.1016/s0040-4039(00)01292-2] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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Akasaka T, Matsuura K, Emi N, Kobayashi K. Conjugation of plasmid DNAs with lactose via diazocoupling enhances resistance to restriction enzymes and acquires binding affinity to galactose-specific lectin. Biochem Biophys Res Commun 1999; 260:323-8. [PMID: 10403769 DOI: 10.1006/bbrc.1999.0830] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Oligosaccharide-plasmid DNA conjugates were synthesized simply and effectively via the diazocoupling method. Plasmids (pUC19, pTRI-beta-actin, and pEGFP-C1) were treated with an N-beta-lactoside-substituted diazonium salt to yield diazocoupling products with degree of substitutions of 2.5-3.1 mol% of overall nucleobases. The lactose-pUC19 conjugate was found to resist restriction enzymes more strongly than the nonconjugated plasmid DNA and to acquire a strong binding affinity to galactose-specific lectin RCA(120). The diazocoupling modification of pTRI-beta-actin plasmid DNA little influenced in vitro transcription with T7 RNA polymerase. When lactose-pEGFP-C1 conjugate was transfected to baby hamster kidney (BHK) cells by means of cationic lipids, transduced gene was expressed in BHK cells similarly with the nonconjugated pEGFP-C1. The modification of plasmid DNA with carbohydrate enhanced the resistance to restriction enzymes and developed a strong binding affinity to galactose-specific lectin.
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Affiliation(s)
- T Akasaka
- Department of Biotechnology, Graduate School of Engineering, Nagoya University, Chikusa-ku, Nagoya, 464-8603, Japan
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