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Ge Y, Li W, Tian J, Yu H, Wang Z, Wang M, Dong Z. Single-Stranded Nucleic Acid Transmembrane Molecular Carriers Based on Positively Charged Helical Foldamers. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024:e2400678. [PMID: 38757406 DOI: 10.1002/advs.202400678] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/22/2024] [Revised: 04/22/2024] [Indexed: 05/18/2024]
Abstract
Transmembrane delivery of biologically active nucleic acids is an important process in cells and has inspired one to develop advanced drug delivery techniques. In this contribution, molecular-level single-stranded nucleic acid transmembrane carriers are reported based on 3.2 nm long Huc's foldamers (AOrnQ3Q3)8 and (mQ3Q2)8 with linearly and helically aligned positive charges, respectively. These two foldamers not only show very strong DNA affinity via electrostatic interactions but also discriminatively bind single-stranded DNA (ss-DNA) and double-stranded DNA (ds-DNA), corroborating the importance of precise charge arrangement in the electrostatic interactions. More importantly, these two foldamers are capable of efficiently transporting ss-DNA across the lipid membranes, and the ss-DNA transport activity of (AOrnQ3Q3)8 with linearly aligned charges is higher than that of (mQ3Q2)8 with helically aligned charges. Thus a type of novel single-stranded nucleic acid transmembrane molecular carriers based on positively charged helical foldamers are introduced. Further, effective and enhanced expression in EGFP-mRNA transfection experiments strongly demonstrates the potential of positively charged foldamers for RNA transmembrane transport and therapy.
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Affiliation(s)
- Yunpeng Ge
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, 2699 Qianjin Street, Changchun, 130012, P. R. China
- Center for Supramolecular Chemical Biology, Jilin University, 2699 Qianjin Street, Changchun, 130012, P. R. China
| | - Wencan Li
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, 2699 Qianjin Street, Changchun, 130012, P. R. China
- Center for Supramolecular Chemical Biology, Jilin University, 2699 Qianjin Street, Changchun, 130012, P. R. China
| | - Jun Tian
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, 2699 Qianjin Street, Changchun, 130012, P. R. China
- Center for Supramolecular Chemical Biology, Jilin University, 2699 Qianjin Street, Changchun, 130012, P. R. China
| | - Hao Yu
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, 2699 Qianjin Street, Changchun, 130012, P. R. China
| | - Zhenzhu Wang
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, 2699 Qianjin Street, Changchun, 130012, P. R. China
- Center for Supramolecular Chemical Biology, Jilin University, 2699 Qianjin Street, Changchun, 130012, P. R. China
| | - Ming Wang
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, 2699 Qianjin Street, Changchun, 130012, P. R. China
| | - Zeyuan Dong
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, 2699 Qianjin Street, Changchun, 130012, P. R. China
- Center for Supramolecular Chemical Biology, Jilin University, 2699 Qianjin Street, Changchun, 130012, P. R. China
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2
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Klemm P, Solomun JI, Rodewald M, Kuchenbrod MT, Hänsch VG, Richter F, Popp J, Hertweck C, Hoeppener S, Bonduelle C, Lecommandoux S, Traeger A, Schubert S. Efficient Gene Delivery of Tailored Amphiphilic Polypeptides by Polyplex Surfing. Biomacromolecules 2022; 23:4718-4733. [PMID: 36269943 DOI: 10.1021/acs.biomac.2c00919] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Within this study, an amphiphilic and potentially biodegradable polypeptide library based on poly[(4-aminobutyl)-l-glutamine-stat-hexyl-l-glutamine] [P(AB-l-Gln-stat-Hex-l-Gln)] was investigated for gene delivery. The influence of varying proportions of aliphatic and cationic side chains affecting the physicochemical properties of the polypeptides on transfection efficiency was investigated. A composition of 40 mol% Hex-l-Gln and 60 mol % AB-l-Gln (P3) was identified as best performer over polypeptides with higher proportions of protonatable monomers. Detailed studies of the transfection mechanism revealed the strongest interaction of P3 with cell membranes, promoting efficient endocytic cell uptake and high endosomal release. Spectrally, time-, and z-resolved fluorescence microscopy further revealed the crucial role of filopodia surfing in polyplex-cell interaction and particle internalization in lamellipodia regions, followed by rapid particle transport into cells. This study demonstrates the great potential of polypeptides for gene delivery. The amphiphilic character improves performance over cationic homopolypeptides, and the potential biodegradability is advantageous toward other synthetic polymeric delivery systems.
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Affiliation(s)
- Paul Klemm
- Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstrasse 10, 07743 Jena, Germany.,Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, 07743 Jena, Germany
| | - Jana I Solomun
- Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstrasse 10, 07743 Jena, Germany.,Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, 07743 Jena, Germany
| | - Marko Rodewald
- Leibniz Institute for Photonic Technology Jena, Member of Leibniz Health Technologies, Albert-Einstein-Strasse 9, 07745 Jena, Germany.,Institute of Physical Chemistry and Abbe Center of Photonics, Friedrich Schiller University Jena, Lessingstrasse 10, 07743 Jena, Germany.,Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, 07743 Jena, Germany
| | - Maren T Kuchenbrod
- Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstrasse 10, 07743 Jena, Germany.,Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, 07743 Jena, Germany
| | - Veit G Hänsch
- Department of Biomolecular Chemistry, Leibniz Institute for Natural Product Research and Infection Biology, Hans Knöll Institute, Beutenbergstrasse 11a, 07745 Jena, Germany
| | - Friederike Richter
- Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstrasse 10, 07743 Jena, Germany.,Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, 07743 Jena, Germany
| | - Jürgen Popp
- Leibniz Institute for Photonic Technology Jena, Member of Leibniz Health Technologies, Albert-Einstein-Strasse 9, 07745 Jena, Germany.,Institute of Physical Chemistry and Abbe Center of Photonics, Friedrich Schiller University Jena, Lessingstrasse 10, 07743 Jena, Germany.,Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, 07743 Jena, Germany
| | - Christian Hertweck
- Department of Biomolecular Chemistry, Leibniz Institute for Natural Product Research and Infection Biology, Hans Knöll Institute, Beutenbergstrasse 11a, 07745 Jena, Germany
| | - Stephanie Hoeppener
- Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstrasse 10, 07743 Jena, Germany.,Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, 07743 Jena, Germany
| | - Colin Bonduelle
- Univ. Bordeaux, CNRS, Bordeaux INP, LCPO, UMR 5629, F-33600 Pessac, France
| | | | - Anja Traeger
- Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstrasse 10, 07743 Jena, Germany.,Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, 07743 Jena, Germany
| | - Stephanie Schubert
- Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstrasse 10, 07743 Jena, Germany.,Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, 07743 Jena, Germany
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3
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Zlotnikov ID, Kudryashova EV. Mannose Receptors of Alveolar Macrophages as a Target for the Addressed Delivery of Medicines to the Lungs. RUSSIAN JOURNAL OF BIOORGANIC CHEMISTRY 2022. [DOI: 10.1134/s1068162022010150] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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4
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Klemm P, Behnke M, Solomun JI, Bonduelle C, Lecommandoux S, Traeger A, Schubert S. Self-assembled PEGylated amphiphilic polypeptides for gene transfection. J Mater Chem B 2021; 9:8224-8236. [PMID: 34643200 DOI: 10.1039/d1tb01495a] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
In the present study, three biodegradable block copolymers composed of a poly(ethylene glycol) block and a copolypeptide block with varying compositions of cationic L-lysine (L-Lys) and hydrophobic benzyl-L-glutamate (Bzl-L-Glu) were designed for gene delivery applications. The polypeptides were synthesized by ring opening polymerization (ROP) and after orthogonal deprotection of Boc-L-Lys side chains, the polymer exhibited an amphiphilic character. To bind or encapsulate plasmid DNA (pDNA), different formulations were investigated: a nanoprecipitation and an emulsion technique using various organic solvents as well as an aqueous pH-controlled formulation method. The complex and nanoparticle (NP) formations were monitored by dynamic light scattering (DLS), and pDNA interaction was shown by gel electrophoresis and subsequent controlled release with heparin. The polypeptides were further tested for their cytotoxicity as well as biodegradability. The complexes and NPs presenting the most promising size distributions and pDNA binding ability were subsequently evaluated for their transfection efficiency in HEK293T cells. The highest transfection efficiencies were obtained with an aqueous formulation of the polypeptide containing the highest L-Lys content and lowest proportion of hydrophobic, helical structures (P1*), which is therefore a promising candidate for efficient gene delivery by biodegradable gene delivery vectors.
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Affiliation(s)
- Paul Klemm
- Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstrasse 10, 07743 Jena, Germany.,Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, 07743 Jena, Germany.
| | - Mira Behnke
- Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstrasse 10, 07743 Jena, Germany.,Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, 07743 Jena, Germany.
| | - Jana I Solomun
- Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstrasse 10, 07743 Jena, Germany.,Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, 07743 Jena, Germany.
| | - Colin Bonduelle
- Univ. Bordeaux, CNRS, Bordeaux INP, LCPO, UMR 5629, F-33600, Pessac, France
| | | | - Anja Traeger
- Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstrasse 10, 07743 Jena, Germany.,Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, 07743 Jena, Germany.
| | - Stephanie Schubert
- Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, 07743 Jena, Germany. .,Institute of Pharmacy, Department of Pharmaceutical Technology and Biopharmacy, Friedrich Schiller University Jena, Lessingstrasse 8, 07743 Jena, Germany
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5
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Arruda EL, Japiassu KB, de Melo Souza PL, Araújo KCF, Thomaz DV, Cortez AP, Garcia LF, Valadares MC, de Souza Gil E, de Oliveira V. Zidovudine Glycosylation by Filamentous Fungi Leads to a Better Redox Stability and Improved Cytotoxicity in B16F10 Murine Melanoma Cells. Anticancer Agents Med Chem 2020; 20:1688-1694. [PMID: 32329702 DOI: 10.2174/1871520620666200424112504] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2019] [Revised: 03/15/2020] [Accepted: 03/15/2020] [Indexed: 11/22/2022]
Abstract
BACKGROUND The strategic development of therapeutic agents, capable of being targeted at their active sites, has been a major goal in treatment of cancer. The delivery of drugs for tumors has as its main challenge the development of safe and effective drugs, since the goal of chemotherapy is to eliminate the tumor completely without affecting healthy cells. The aim of present study was to investigate the antioxidant, anticancer activities of zidovudine and its α-O-glycosylated derivative obtained by biosynthesis of a filamentous fungi, Cunninghamela echinulata. METHODS An evaluation of the cytotoxic potential of zidovudine and its α-O-glycosylated was performed in fibroblasts and melanoma cells by the tetrazolium reduction method (MTT) and the antioxidant activity of this derivative was observed. RESULTS The antioxidant activity of zidovudine demonstrated an electrochemical oxidation potential of 0.91V, while the α-O-glycosylated derivative did not exhibit any antioxidant activity. The zidovudine exhibited low cytotoxicity for melanoma and fibroblast cells, while the α-O-glycosylated derivative presented better cytotoxicity on melanoma cells at a concentration of 10mg. mL-1. CONCLUSION This study demonstrates the specific cytotoxicity of the glycoconjugate and suggests that glycosylation by biosynthesis can be a useful strategy for obtaining new anticancer compounds.
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Affiliation(s)
- Evilanna L Arruda
- Laboratorio de Bioconversao, Faculdade de Farmacia, Universidade Federal de Goias, P.O. Box 131, Goiania, GO, Brazil
| | - Kamila B Japiassu
- Laboratorio de Bioconversao, Faculdade de Farmacia, Universidade Federal de Goias, P.O. Box 131, Goiania, GO, Brazil
| | - Paula L de Melo Souza
- Laboratorio de Bioconversao, Faculdade de Farmacia, Universidade Federal de Goias, P.O. Box 131, Goiania, GO, Brazil
| | - Kelly C F Araújo
- Laboratorio de Bioconversao, Faculdade de Farmacia, Universidade Federal de Goias, P.O. Box 131, Goiania, GO, Brazil
| | - Douglas V Thomaz
- Laboratorio de Pesquisa em Produtos Naturais, Faculdade de Farmacia, Universidade Federal de Goias, P.O. Box 131, , Goiania, GO, Brazil
| | - Alane P Cortez
- Laboratorio de Farmacologia e Toxicologia Celular, Faculdade de Farmacia, Universidade Federal de Goias, P.O. Box 131, Goiania, GO, Brazil
| | - Luane F Garcia
- Laboratorio de Anlises Farmaceuticas e Ambientais, Faculdade de Farmacia, Universidade Federal de Goias, P.O. Box 131, Goiania, GO, Brazil
| | - Marize C Valadares
- Laboratorio de Farmacologia e Toxicologia Celular, Faculdade de Farmacia, Universidade Federal de Goias, P.O. Box 131, Goiania, GO, Brazil
| | - Eric de Souza Gil
- Laboratorio de Anlises Farmaceuticas e Ambientais, Faculdade de Farmacia, Universidade Federal de Goias, P.O. Box 131, Goiania, GO, Brazil
| | - Valéria de Oliveira
- Laboratorio de Bioconversao, Faculdade de Farmacia, Universidade Federal de Goias, P.O. Box 131, Goiania, GO, Brazil
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6
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Chitra S, Bargavi P, Balasubramaniam M, Chandran RR, Balakumar S. Impact of copper on in-vitro biomineralization, drug release efficacy and antimicrobial properties of bioactive glasses. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 109:110598. [PMID: 32229004 DOI: 10.1016/j.msec.2019.110598] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/03/2019] [Revised: 12/10/2019] [Accepted: 12/23/2019] [Indexed: 12/21/2022]
Abstract
This study highlights the incorporation of copper in the bioactive glasses (BAG) network that greatly influences the morphological, structural and biological properties. By increasing the copper incorporation in BAG, increment in cell volume was obtained from XRD patterns, and concomitantly, dominant phosphate bands and latent silica bands were observed by FT-IR and Raman spectroscopic results. The Cu addition also affected particle appearance to vary from spherical to cluster-like cubes in 1.5% and 2.5% copper-doped BAG. Due to the mesoporous network 1.5% and 2.5% copper-doped BAG showed enhanced release of anti-inflammatory drugs such as Acetaminophen (ACE) and Ibuprofen (IBU) in which, the drug release profiles showed best fit with kinetic models of First order, Korsmeyar-Peppas and Higuchi. Copper doping influences the lattice of BAG, as a result morphology and porosity varied, which regulates the ionic dissolution, hence, prompting bioactivity was perceived from 1.5% and 2.5% copper-doped bioactive glasses (Cu-BGs). Moreover, 2.5% Cu-BG and 1.5% Cu-BG showed highest rate of ROS detection, as well as improved antimicrobial activity. This study established that up to certain proportion of copper incorporation in BAG network, potentially enhances the biomineralization and turns the morphology towards minimal size with mesoporous nature. Due to the abundance in oral microbial exposure, copper amplifies the superior antimicrobial properties, and Cu-BGs act as a drug carrier to load ACE and IBU, which potentially up-regulate the healing properties in dental application.
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Affiliation(s)
- S Chitra
- National Centre for Nanoscience and Nanotechnology, University of Madras, Guindy Campus, Chennai 600025, India
| | - P Bargavi
- National Centre for Nanoscience and Nanotechnology, University of Madras, Guindy Campus, Chennai 600025, India
| | - M Balasubramaniam
- National Centre for Nanoscience and Nanotechnology, University of Madras, Guindy Campus, Chennai 600025, India
| | - R Riju Chandran
- National Centre for Nanoscience and Nanotechnology, University of Madras, Guindy Campus, Chennai 600025, India
| | - S Balakumar
- National Centre for Nanoscience and Nanotechnology, University of Madras, Guindy Campus, Chennai 600025, India.
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7
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Synthesis and immunostimulatory activity of sugar-conjugated TLR7 ligands. Bioorg Med Chem Lett 2019; 30:126840. [PMID: 31864800 DOI: 10.1016/j.bmcl.2019.126840] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2019] [Revised: 11/05/2019] [Accepted: 11/15/2019] [Indexed: 01/12/2023]
Abstract
Toll-like receptors (TLRs) are a type of pattern recognition receptors (PRRs), which are activated by recognizing pathogen-associated molecular patterns (PAMPs). The activation of TLRs initiates innate immune responses and subsequently leads to adaptive immune responses. TLR agonists are effective immuomodulators in vaccine adjuvants for infectious diseases and cancer immunotherapy. In exploring hydrophilic small molecules of TLR7 ligands using the cell-targeted property of a vaccine adjuvant, we conjugated 1V209, a small TLR7 ligand molecule, with various low or middle molecular weight sugar molecules that work as carriers. The sugar-conjugated 1V209 derivatives showed increased water solubility and higher immunostimulatory activity in both mouse and human cells compared to unmodified 1V209. The improved immunostimulatory potency of sugar-conjugates was attenuated by an inhibitor of endocytic process, cytochalasin D, suggesting that conjugation of sugar moieties may enhance the uptake of TLR7 ligand into the endosomal compartment. Collectively our results support that sugar-conjugated TLR7 ligands are applicable to novel drugs for cancer and vaccine therapy.
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8
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L. Arruda E, S. Nunes E, de M. Souza PL, B. Japiassú K, C. de Carvalho T, G. Vaz B, M. Lião L, de Oliveira V. A single-step O-glycosylation of azidothymidine in bioreactor catalysed by filamentous fungi. Tetrahedron Lett 2016. [DOI: 10.1016/j.tetlet.2016.08.050] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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9
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Cho E, Jung S. Supramolecular Complexation of Carbohydrates for the Bioavailability Enhancement of Poorly Soluble Drugs. Molecules 2015; 20:19620-46. [PMID: 26516835 PMCID: PMC6332515 DOI: 10.3390/molecules201019620] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2015] [Revised: 10/16/2015] [Accepted: 10/22/2015] [Indexed: 01/22/2023] Open
Abstract
In this review, a comprehensive overview of advances in the supramolecular complexes of carbohydrates and poorly soluble drugs is presented. Through the complexation process, poorly soluble drugs could be efficiently delivered to their desired destinations. Carbohydrates, the most abundant biomolecules, have diverse physicochemical properties owing to their inherent three-dimensional structures, hydrogen bonding, and molecular recognition abilities. In this regard, oligosaccharides and their derivatives have been utilized for the bioavailability enhancement of hydrophobic drugs via increasing the solubility or stability. By extension, polysaccharides and their derivatives can form self-assembled architectures with poorly soluble drugs and have shown increased bioavailability in terms of the sustained or controlled drug release. These supramolecular systems using carbohydrate will be developed consistently in the field of pharmaceutical and medical application.
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Affiliation(s)
- Eunae Cho
- Center for Biotechnology Research in UBITA (CBRU), Institute for Ubiquitous Information Technology and Applications (UBITA), Konkuk University, 120 Neungdong-ro, Gwangjin-gu, Seoul 05029, Korea.
| | - Seunho Jung
- Center for Biotechnology Research in UBITA (CBRU), Institute for Ubiquitous Information Technology and Applications (UBITA), Konkuk University, 120 Neungdong-ro, Gwangjin-gu, Seoul 05029, Korea.
- Microbial Carbohydrate Resource Bank (MBRC), Konkuk University, 120 Neungdong-ro, Gwangjin-gu, Seoul 05029, Korea.
- Department of Bioscience and Biotechnology, Konkuk University, 120 Neungdong-ro, Gwangjin-gu, Seoul 05029, Korea.
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Maxwell JT, Somasuntharam I, Gray WD, Shen M, Singer JM, Wang B, Saafir T, Crawford BH, Jiang R, Murthy N, Davis ME, Wagner MB. Bioactive nanoparticles improve calcium handling in failing cardiac myocytes. Nanomedicine (Lond) 2015. [PMID: 26223412 DOI: 10.2217/nnm.15.126] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
AIMS To evaluate the ability of N-acetylglucosamine (GlcNAc) decorated nanoparticles and their cargo to modulate calcium handling in failing cardiac myocytes (CMs). MATERIALS & METHODS Primary CMs isolated from normal and failing hearts were treated with GlcNAc nanoparticles in order to assess the ability of the nanoparticles and their cargo to correct dysfunctional calcium handling in failing myocytes. RESULTS & CONCLUSION GlcNAc particles reduced aberrant calcium release in failing CMs and restored sarcomere function. Additionally, encapsulation of a small calcium-modulating protein, S100A1, in GlcNAc nanoparticles also showed improved calcium regulation. Thus, the development of our bioactive nanoparticle allows for a 'two-hit' treatment, by which the cargo and also the nanoparticle itself can modulate intracellular protein activity.
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Affiliation(s)
- Joshua T Maxwell
- Wallace H Coulter Department of Biomedical Engineering, Emory University School of Medicine, 1648 Pierce Dr NE, Atlanta, GA 30307, USA.,Division of Pediatric Cardiology, Department of Pediatrics, Emory University School of Medicine, 1648 Pierce Dr NE, Atlanta, GA 30307, USA.,Children's Heart Research & Outcomes (HeRO) Center, Children's Healthcare of Atlanta & Emory University, Atlanta, GA, USA
| | - Inthirai Somasuntharam
- Wallace H Coulter Department of Biomedical Engineering, Emory University School of Medicine, 1648 Pierce Dr NE, Atlanta, GA 30307, USA
| | - Warren D Gray
- Wallace H Coulter Department of Biomedical Engineering, Emory University School of Medicine, 1648 Pierce Dr NE, Atlanta, GA 30307, USA
| | - Ming Shen
- Division of Pediatric Cardiology, Department of Pediatrics, Emory University School of Medicine, 1648 Pierce Dr NE, Atlanta, GA 30307, USA.,Children's Heart Research & Outcomes (HeRO) Center, Children's Healthcare of Atlanta & Emory University, Atlanta, GA, USA
| | - Jason M Singer
- Division of Pediatric Cardiology, Department of Pediatrics, Emory University School of Medicine, 1648 Pierce Dr NE, Atlanta, GA 30307, USA.,Children's Heart Research & Outcomes (HeRO) Center, Children's Healthcare of Atlanta & Emory University, Atlanta, GA, USA
| | - Bo Wang
- Division of Pediatric Cardiology, Department of Pediatrics, Emory University School of Medicine, 1648 Pierce Dr NE, Atlanta, GA 30307, USA.,Children's Heart Research & Outcomes (HeRO) Center, Children's Healthcare of Atlanta & Emory University, Atlanta, GA, USA
| | - Talib Saafir
- Division of Pediatric Cardiology, Department of Pediatrics, Emory University School of Medicine, 1648 Pierce Dr NE, Atlanta, GA 30307, USA.,Children's Heart Research & Outcomes (HeRO) Center, Children's Healthcare of Atlanta & Emory University, Atlanta, GA, USA
| | - Brian H Crawford
- Division of Pediatric Cardiology, Department of Pediatrics, Emory University School of Medicine, 1648 Pierce Dr NE, Atlanta, GA 30307, USA.,Children's Heart Research & Outcomes (HeRO) Center, Children's Healthcare of Atlanta & Emory University, Atlanta, GA, USA
| | - Rong Jiang
- Division of Pediatric Cardiology, Department of Pediatrics, Emory University School of Medicine, 1648 Pierce Dr NE, Atlanta, GA 30307, USA.,Children's Heart Research & Outcomes (HeRO) Center, Children's Healthcare of Atlanta & Emory University, Atlanta, GA, USA
| | - Niren Murthy
- Department of Bioengineering, University of California Berkeley, Berkeley, CA, USA
| | - Michael E Davis
- Wallace H Coulter Department of Biomedical Engineering, Emory University School of Medicine, 1648 Pierce Dr NE, Atlanta, GA 30307, USA.,Division of Pediatric Cardiology, Department of Pediatrics, Emory University School of Medicine, 1648 Pierce Dr NE, Atlanta, GA 30307, USA.,Children's Heart Research & Outcomes (HeRO) Center, Children's Healthcare of Atlanta & Emory University, Atlanta, GA, USA
| | - Mary B Wagner
- Division of Pediatric Cardiology, Department of Pediatrics, Emory University School of Medicine, 1648 Pierce Dr NE, Atlanta, GA 30307, USA.,Children's Heart Research & Outcomes (HeRO) Center, Children's Healthcare of Atlanta & Emory University, Atlanta, GA, USA
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11
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Kaur G, Pickrell G, Sriranganathan N, Kumar V, Homa D. Review and the state of the art: Sol-gel and melt quenched bioactive glasses for tissue engineering. J Biomed Mater Res B Appl Biomater 2015; 104:1248-75. [PMID: 26060931 DOI: 10.1002/jbm.b.33443] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2014] [Revised: 03/19/2015] [Accepted: 04/14/2015] [Indexed: 01/26/2023]
Abstract
Biomaterial development is currently the most active research area in the field of biomedical engineering. The bioglasses possess immense potential for being the ideal biomaterials due to their high adaptiveness to the biological environment as well as tunable properties. Bioglasses like 45S5 has shown great clinical success over the past 10 years. The bioglasses like 45S5 were prepared using melt-quenching techniques but recently porous bioactive glasses have been derived through sol-gel process. The synthesis route exhibits marked effect on the specific surface area, as well as degradability of the material. This article is an attempt to provide state of the art of the sol-gel and melt quenched bioactive bioglasses for tissue regeneration. Fabrication routes for bioglasses suitable for bone tissue engineering are highlighted and the effect of these fabrication techniques on the porosity, pore-volume, mechanical properties, cytocompatibilty and especially apatite layer formation on the surface of bioglasses is analyzed in detail. Drug delivery capability of bioglasses is addressed shortly along with the bioactivity of mesoporous glasses. © 2015 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater, 104B: 1248-1275, 2016.
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Affiliation(s)
- Gurbinder Kaur
- Department of Material Science and Engineering, Holden Hall, Virginia Polytechnic Institute and State University, Blacksburg, Virginia, 24060, USA.,School of Physics & Materials Science, Thapar University, Patiala, 147004, India
| | - Gary Pickrell
- Department of Material Science and Engineering, Holden Hall, Virginia Polytechnic Institute and State University, Blacksburg, Virginia, 24060, USA
| | - Nammalwar Sriranganathan
- Department of Biomedical Sciences and Pathobiology, Virginia Polytechnic Institute and State University, Blacksburg, Virginia, 24060, USA
| | - Vishal Kumar
- Department of Material Science and Engineering, Holden Hall, Virginia Polytechnic Institute and State University, Blacksburg, Virginia, 24060, USA.,Sri Guru Granth Sahib World University, Fatehgarh Sahib, 140406, India
| | - Daniel Homa
- Department of Material Science and Engineering, Holden Hall, Virginia Polytechnic Institute and State University, Blacksburg, Virginia, 24060, USA
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Murthy RV, Bavireddi H, Gade M, Kikkeri R. Exploiting the Lactose-GM3Interaction for Drug Delivery. ChemMedChem 2015; 10:792-6. [DOI: 10.1002/cmdc.201500046] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2015] [Indexed: 11/07/2022]
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13
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Zhang R, Song Z, Yin L, Zheng N, Tang H, Lu H, Gabrielson NP, Lin Y, Kim K, Cheng J. Ionic α-helical polypeptides toward nonviral gene delivery. WILEY INTERDISCIPLINARY REVIEWS. NANOMEDICINE AND NANOBIOTECHNOLOGY 2015; 7:98-110. [PMID: 25377262 PMCID: PMC4545666 DOI: 10.1002/wnan.1307] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/26/2014] [Revised: 07/08/2014] [Accepted: 09/02/2014] [Indexed: 01/08/2023]
Abstract
The advent of polymeric materials has significantly promoted the development and rapid growth of various technologies in biomedical applications, such as tissue engineering and controlled drug and gene delivery. Water-soluble polypeptides bearing functional side chains and adopting stable secondary structures are a new class of functional polymeric materials of potentially broad applications in medicine and biotechnology. In this article, we summarize our recent effort on the design and synthesis of the water-soluble α-helical ionic polypeptides originally developed in our laboratory and highlight their applications in cell membrane penetration and nonviral gene/small interfering RNA (siRNA) delivery.
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Affiliation(s)
- Rujing Zhang
- Department of Materials Science and Engineering, University of Illinois at Urbana–Champaign, Urbana, IL 61801, USA
| | - Ziyuan Song
- Department of Materials Science and Engineering, University of Illinois at Urbana–Champaign, Urbana, IL 61801, USA
| | - Lichen Yin
- Department of Materials Science and Engineering, University of Illinois at Urbana–Champaign, Urbana, IL 61801, USA
| | - Nan Zheng
- Department of Materials Science and Engineering, University of Illinois at Urbana–Champaign, Urbana, IL 61801, USA
| | - Haoyu Tang
- Department of Materials Science and Engineering, University of Illinois at Urbana–Champaign, Urbana, IL 61801, USA
| | - Hua Lu
- Department of Materials Science and Engineering, University of Illinois at Urbana–Champaign, Urbana, IL 61801, USA
| | - Nathan P. Gabrielson
- Department of Materials Science and Engineering, University of Illinois at Urbana–Champaign, Urbana, IL 61801, USA
| | - Yao Lin
- Department of Chemistry, University of Connecticut, Storrs, CT 06269, USA
| | - Kyung Kim
- Department of Materials Science and Engineering, University of Illinois at Urbana–Champaign, Urbana, IL 61801, USA
| | - Jianjun Cheng
- Department of Materials Science and Engineering, University of Illinois at Urbana–Champaign, Urbana, IL 61801, USA
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Jeong HS, Na KS, Hwang H, Oh PS, Kim DH, Lim ST, Sohn MH, Jeong HJ. Effect of space length of mannose ligand on uptake of mannosylated liposome in RAW 264.7 cells: In vitro and in vivo studies. J Biomed Mater Res A 2014; 102:4545-53. [PMID: 24677479 DOI: 10.1002/jbm.a.35112] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2013] [Revised: 01/08/2014] [Accepted: 02/10/2014] [Indexed: 11/08/2022]
Abstract
The most widely used method for increasing uptake on macrophage is specific targeting for mannose receptor (MR) presented on macrophages. Efficiency of the uptake for MR is influenced by the space length and flexibility of mannose ligand in liposome (LP). We prepared mannosylated liposomes (M-EGn-LP-ICG) encapsulated indocyanine green (ICG) with mannose ligand of various ethylene glycol units (EG), LP-ICG, and mannosylated liposome (M-LP-ICG) incorporated with p-aminophenyl-α-d-mannopyranoside. We studied the effect of space length of the mannose ligand in vitro and in vivo with prepared liposomes. A space length of two ethylene glycol units at least was needed for uptake by macrophages and the uptake was increased as the space length increased up to EG4. We measured near-infrared (NIR) fluorescence intensity by ICG and the fluorescence value of cell-associated N-(4-nitrobenzo-2-oxa-1,3-diazole) (NBD) in liposome after cellular uptake. M-EG4-LP-ICG showed lower NIR fluorescence intensity but higher NBD fluorescence value than M-LP-ICG. The result of pre-treatment with d(+)-mannose as an inhibitor showed significant decreasing in uptake of mannosylated LP-ICG but no difference in LP-ICG. These were explained that mannosylated LP-ICG was taken up by macrophages through the MR and M-EG4-LP-ICG showed more specific uptake than M-LP-ICG. We obtained images as time passed in the NIR range after intravenous administration using a Balb/c mouse with inflammatory model. The results showed high uptake in liver at early time and rapid degradation of mannosylated LP-ICG. M-EG4-LP-ICG was more selectively taken up by macrophages than M-LP-ICG.
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Affiliation(s)
- Hwan-Seok Jeong
- Department of Nuclear Medicine, Chonbuk National University Medical School and Hospital, Jeonju, Jeonbuk, 561-712, Republic of Korea; Molecular Imaging & Therapeutic Medicine Research Center, Chonbuk National University Medical School and Hospital, Jeonju, Jeonbuk, 561-712, Republic of Korea; Cyclotron Research Center, Chonbuk National University Medical School and Hospital, Jeonju, Jeonbuk, 561-712, Republic of Korea; Institute for Medical Sciences, Chonbuk National University Medical School and Hospital, Jeonju, Jeonbuk, 561-712, Republic of Korea; Biomedical Research Institute, Chonbuk National University Medical School and Hospital, Jeonju, Jeonbuk, 561-712, Republic of Korea
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Titov DV, Gening ML, Tsvetkov YE, Nifantiev NE. Conjugates of cyclooligosaccharide scaffolds and carbohydrate ligands: Methods for synthesis and the interaction with lectins. RUSSIAN JOURNAL OF BIOORGANIC CHEMISTRY 2013; 39:509-46. [DOI: 10.1134/s1068162013050142] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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16
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Irure A, Marradi M, Arnáiz B, Genicio N, Padro D, Penadés S. Sugar/gadolinium-loaded gold nanoparticles for labelling and imaging cells by magnetic resonance imaging. Biomater Sci 2013; 1:658-668. [PMID: 32481838 DOI: 10.1039/c3bm60032g] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Targeted magnetic resonance imaging (MRI) probes for selective cell labelling and tracking are highly desired. We here present biocompatible sugar-coated paramagnetic Gd-based gold nanoparticles (Gd-GNPs) and test them as MRI T1 reporters in different cellular lines at a high magnetic field (11.7 T). With an average number of 20 Gd atoms per nanoparticle, Gd-GNPs show relaxivity values r1 ranging from 7 to 18 mM-1 s-1 at 1.41 T. The multivalent presentation of carbohydrates on the Gd-GNPs enhances the avidity of sugars for carbohydrate-binding receptors at the cell surface and increases the local concentration of the probes. A large reduction in longitudinal relaxation times T1 is achieved with both fixed cells and live cells. Differences in cellular labelling are obtained by changing the type of sugar on the gold surface, indicating that simple monosaccharides and disaccharides are able to modulate the cellular uptake. These results stress the benefits of using sugars to produce nanoparticles for cellular labelling. To the best of our knowledge this is the first report on labelling and imaging cells with Gd-based gold nanoparticles which use simple sugars as receptor reporters.
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Affiliation(s)
- Ainhoa Irure
- Laboratory of Glyconanotechnology, Biofunctional Nanomaterials Unit, CIC biomaGUNE, P° Miramón 182, 20009 San Sebastián, Spain.
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Yen J, Zhang Y, Gabrielson NP, Yin L, Guan L, Chaudhury I, Lu H, Wang F, Cheng J. Cationic, helical polypeptide-based gene delivery for IMR-90 fibroblasts and human embryonic stem cells. Biomater Sci 2013; 1:719-727. [PMID: 23997932 DOI: 10.1039/c3bm00006k] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Diblock copolymers consisting of poly(ethylene glycol)-block-poly(γ-4-(((2-(piperidin-1-yl)ethyl)amino)methyl)benzyl-L-glutamate) (PEG-b-PVBLG-8) were synthesized and evaluated for their ability to mediate gene delivery in hard-to-transfect cells like IMR-90 human fetal lung fibroblasts and human embryonic stem cells (hESCs). The PEG-b-PVBLG-8 contained a membrane-disruptive, cationic, helical polypeptide block (PVBLG-8) for complexing with DNA and a hydrophilic PEG block to improve the biocompatibility of the gene delivery vehicle. The incorporation of PEG effectively reduced the toxicity of the helical PVBLG-8 block without dramatically compromising the polymer's ability to destabilize membranes or form complexes with DNA. PEG-b-PVBLG-8 copolymers with low (n = 76) and high (n = 287) degrees of polymerization (n) of the PVBLG-8 block were synthesized and evaluated for gene delivery. PEG-b-PVBLG-8 diblock polymers with a high degree of polymerization have a greater transfection efficiency and lower toxicity in IMR-90 cells than the commercial reagent Lipofectamine 2000. The usefulness of PEG-b-PVBLG-8 was further demonstrated via the successful transfection of hESCs without a measured loss in cell pluripotency markers.
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Affiliation(s)
- Jonathan Yen
- Department of Bioengineering, University of Illinois at Urbana-Champaign, Urbana, IL 61801 (USA)
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18
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Tanaka T, Abo Y, Hamano S, Fujishima Y, Kaneo Y. Intracellular disposition of arabinogalactan and asialofetuin in HepG2 cells. J Drug Deliv Sci Technol 2013. [DOI: 10.1016/s1773-2247(13)50062-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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19
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Hum J, Boccaccini AR. Bioactive glasses as carriers for bioactive molecules and therapeutic drugs: a review. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2012; 23:2317-2333. [PMID: 22361998 DOI: 10.1007/s10856-012-4580-z] [Citation(s) in RCA: 57] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/23/2011] [Accepted: 02/03/2012] [Indexed: 05/31/2023]
Abstract
Bioactive glasses (BG) show great promise for bone tissue engineering based on their key properties, e.g., biocompatibility, biodegradability, osteoconductivity as well as osteogenic and angiogenic potential, which make them excellent candidates for bone tissue scaffolds and bone substitute materials. Recent work has shown that dissolution products of bioactive glasses have the potential to induce angiogenesis in addition to their known effect of influencing gene expression and promoting osteoblastic differentiation. One of the most interesting features of BG is their ability to bond both to soft and hard tissues, depending on their composition. To intensify the positive impact of BG for medical applications, there are considerable research efforts on using bioactive glass based platforms as carriers for the encapsulation, delivery and controlled release of bioactive molecules and therapeutic drugs. Different types of bioactive glasses have been considered in combination with different therapeutic drugs, hormones, growth factors and peptides. Using bioactive glasses as drug delivery system combines thus the effectiveness of therapeutic drugs (or bioactive/signaling molecules) with the intrinsic advantages of this inorganic biomaterial. Considering research carried out in the last 15 years, this review presents the different chemical compositions and morphologies of bioactive glasses used as carrier for bioactive molecules and therapeutic drugs and discusses the expanding potential of BG with drug delivery capability focusing in the field of bone tissue engineering.
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Affiliation(s)
- Jasmin Hum
- Institute of Biomaterials, University of Erlangen-Nuremberg, Cauerstr. 6, 91058 Erlangen, Germany
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20
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Jain K, Kesharwani P, Gupta U, Jain NK. A review of glycosylated carriers for drug delivery. Biomaterials 2012; 33:4166-86. [DOI: 10.1016/j.biomaterials.2012.02.033] [Citation(s) in RCA: 169] [Impact Index Per Article: 14.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2012] [Accepted: 02/16/2012] [Indexed: 02/03/2023]
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Affiliation(s)
- Vishal Goury
- a Department of Chemistry, Faculty of Science, University of Mauritius, Réduit, Mauritius
| | - Dhanjay Jhurry
- b Department of Chemistry, Faculty of Science, University of Mauritius, Réduit, Mauritius;,
| | - Archana Bhaw-Luximon
- c Department of Chemistry, Faculty of Science, University of Mauritius, Réduit, Mauritius
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22
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Gabrielson NP, Lu H, Yin L, Li D, Wang F, Cheng J. Reactive and bioactive cationic α-helical polypeptide template for nonviral gene delivery. Angew Chem Int Ed Engl 2012; 51:1143-7. [PMID: 22162307 PMCID: PMC3555134 DOI: 10.1002/anie.201104262] [Citation(s) in RCA: 147] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2011] [Revised: 09/19/2011] [Indexed: 11/11/2022]
Abstract
Poly(γ-(4-vinylbenzyl)-l -glutamate) (PVBLG) served as a bioactive and reactive template for the generation of a library of cationic α-helical polypeptides for gene delivery. The top performing polymer outperformed 25-kDa polyethylenimine by 12-fold. Preliminary data indicates that helicity of these cationic polypeptides is essential for their improved performance, with enhanced membrane disruption a likely source of their transfection efficiency.
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Affiliation(s)
- Nathan P. Gabrielson
- Dr. N.P. Gabrielson, Dr. H. Lu, Dr. L. Yin, Prof. Dr. J. Cheng, Department of Materials Science and Engineering, University of Illinois, Urbana-Champaign, 1304 W. Green Street, Urbana, IL 61801 (USA), Fax: (+1) 217-333-2736, , Homepage: http://cheng.matse.illinois.edu/
| | - Hua Lu
- Dr. N.P. Gabrielson, Dr. H. Lu, Dr. L. Yin, Prof. Dr. J. Cheng, Department of Materials Science and Engineering, University of Illinois, Urbana-Champaign, 1304 W. Green Street, Urbana, IL 61801 (USA), Fax: (+1) 217-333-2736, , Homepage: http://cheng.matse.illinois.edu/
| | - Lichen Yin
- Dr. N.P. Gabrielson, Dr. H. Lu, Dr. L. Yin, Prof. Dr. J. Cheng, Department of Materials Science and Engineering, University of Illinois, Urbana-Champaign, 1304 W. Green Street, Urbana, IL 61801 (USA), Fax: (+1) 217-333-2736, , Homepage: http://cheng.matse.illinois.edu/
| | - Dong Li
- Dr. D. Li, Prof. Dr. F. Wang, Department of Cell and Developmental Biology, University of Illinois, Urbana-Champaign, 601 S. Goodwin Avenue, Urbana, IL 61801 (USA), Fax: (+1) 217-265-0927, , Homepage: http://www.mcb.illinois.edu/faculty/profile/1493
| | - Fei Wang
- Dr. D. Li, Prof. Dr. F. Wang, Department of Cell and Developmental Biology, University of Illinois, Urbana-Champaign, 601 S. Goodwin Avenue, Urbana, IL 61801 (USA), Fax: (+1) 217-265-0927, , Homepage: http://www.mcb.illinois.edu/faculty/profile/1493
| | - Jianjun Cheng
- Dr. N.P. Gabrielson, Dr. H. Lu, Dr. L. Yin, Prof. Dr. J. Cheng, Department of Materials Science and Engineering, University of Illinois, Urbana-Champaign, 1304 W. Green Street, Urbana, IL 61801 (USA), Fax: (+1) 217-333-2736, , Homepage: http://cheng.matse.illinois.edu/
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Wang J, Luo T, Li S, Zhao J. The powerful applications of polyunsaturated fatty acids in improving the therapeutic efficacy of anticancer drugs. Expert Opin Drug Deliv 2011; 9:1-7. [DOI: 10.1517/17425247.2011.618183] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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24
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Gabrielson NP, Lu H, Yin L, Li D, Wang F, Cheng J. Reactive and Bioactive Cationic α-Helical Polypeptide Template for Nonviral Gene Delivery. Angew Chem Int Ed Engl 2011. [DOI: 10.1002/ange.201104262] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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25
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Kurhade SE, Mengawade T, Bhuniya D, Palle VP, Reddy DS. Synthesis of novel sugar-lactam conjugates using the Aubé reaction. Org Biomol Chem 2011; 9:744-7. [PMID: 21082141 DOI: 10.1039/c0ob00719f] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Affiliation(s)
- Suresh E Kurhade
- Discovery Chemistry, Advinus Therapeutics Ltd., Quantum Towers, Plot No. 9, Rajiv Gandhi Infotech Park, Phase-I, Hinjewadi, Pune, 411057, India
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26
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Bellucci MC, Ghilardi A, Volonterio A. Three-component, one-pot sequential synthesis of glyco-hydantoin conjugates. Org Biomol Chem 2011; 9:8379-92. [DOI: 10.1039/c1ob06312j] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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27
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Wijsman E, Filippov D, Valentijn A, van der Marel G, van Boom J. Solid-support synthesis of di- and tetramannosylated tetrathymidylic acid. ACTA ACUST UNITED AC 2010. [DOI: 10.1002/recl.19961150903] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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28
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Gur’eva LY, Budanova UA, Sebyakin YL. Synthesis of neoglycolipids based on D-lactose. RUSSIAN JOURNAL OF ORGANIC CHEMISTRY 2009. [DOI: 10.1134/s1070428009020031] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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30
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Kobayashi S, Ise H, Takahashi M, Goto M, Akaike T, Ikeda U. Surface coating of bone marrow cells with N-acetylglucosamine for bone marrow implantation therapy. Biomaterials 2009; 30:574-82. [DOI: 10.1016/j.biomaterials.2008.10.002] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2008] [Accepted: 10/02/2008] [Indexed: 11/24/2022]
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Boutin V, Legrand A, Mayer R, Nachtigal M, Monsigny M, Midoux P. Glycofection: The Ubiquitous Roles of Sugar Bound on Glycoplexes. Drug Deliv 2008. [DOI: 10.1080/107175499267156] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022] Open
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33
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Kichler A, Remy JS, Behr JP, Schuber F. Targeted transfection of human hepatoma cells with a combination of lipospermine and neo-galactolipids. J Liposome Res 2008. [DOI: 10.3109/08982109509012677] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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34
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Erbacher P, Roche AC, Monsigny M, Midoux P. Specific Gene Transfer Based on Biotinylated and Gluconoylated Polylysine/Plasmid Complexes. Drug Deliv 2008. [DOI: 10.3109/10717549709051889] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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35
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Kudo Y, Koiwai K, Shimizu K, Kusuki S, Sakuragi M, Shimada N, Takeda Y, Sakurai K. Amidine-bearing lipoplex targeting to hepatocyte cells. CHINESE CHEM LETT 2008. [DOI: 10.1016/j.cclet.2008.06.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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36
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Synthesis of bi- and tervalent ligands of galectins, derivatives of β-lactosylamine, with the amino group in the terminal position of the spacer. Russ Chem Bull 2008. [DOI: 10.1007/s11172-008-0104-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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37
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Aso SI, Ise H, Takahashi M, Kobayashi S, Morimoto H, Izawa A, Goto M, Ikeda U. Effective uptake of N-acetylglucosamine-conjugated liposomes by cardiomyocytes in vitro. J Control Release 2007; 122:189-98. [PMID: 17681632 DOI: 10.1016/j.jconrel.2007.07.003] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2007] [Revised: 06/21/2007] [Accepted: 07/05/2007] [Indexed: 11/19/2022]
Abstract
A drug delivery system (DDS) that targets the injured myocardium would serve as a novel therapeutic tool for cardiac diseases. To develop such a DDS, we investigated the interaction of 2 types of glycoside-conjugated liposomes containing a fluorescence substrate with cardiomyocytes. Flow cytometry revealed that cardiomyocytes adequately interact with N-acetylglucosamine-conjugated liposomes (GlcNAc-Ls). Furthermore, to confirm whether the agents encapsulated in GlcNAc-Ls affect the intracellular environment of cardiomyocytes, we prepared GlcNAc-Ls-containing pravastatin and examined the effect of pravastatin on cardiomyocytes. Pravastatin is a 3-hydroxy-3-methylglutaryl-CoA reductase inhibitor (statin) and is hydrophilic. It is reported that lipophilic statins enhance nitric oxide (NO) production and inducible nitric oxide synthase (iNOS) expression by interleukin-1beta (IL-1beta)-stimulated cardiomyocytes. The hydrophilic nature of pravastatin prevents its entry into cardiomyocytes; therefore, it cannot enhance both these processes. Treatment with GlcNAc-Ls-containing pravastatin specifically enhanced NO production and iNOS expression by IL-1beta-stimulated cardiomyocytes. Based on these results, we found that cardiomyocytes exhibit a high degree of interaction with GlcNAc-Ls, and GlcNAc-Ls-encapsulated agents can be effectively taken up by cardiomyocytes. We suggest that GlcNAc-Ls can be utilized therapeutically as a DDS for the injured myocardium.
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Affiliation(s)
- Shin-ichi Aso
- Division of Cardiovascular Sciences, Department of Organ Regeneration, Shinshu University Graduate School of Medicine, Asahi, Matsumoto, Nagano, Japan
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38
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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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39
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Cheng J, Zeidan R, Mishra S, Liu A, Pun SH, Kulkarni RP, Jensen GS, Bellocq NC, Davis ME. Structure−Function Correlation of Chloroquine and Analogues as Transgene Expression Enhancers in Nonviral Gene Delivery. J Med Chem 2006; 49:6522-31. [PMID: 17064070 DOI: 10.1021/jm060736s] [Citation(s) in RCA: 100] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
To understand how chloroquine (CQ) enhances transgene expression in polycation-based, nonviral gene delivery systems, a number of CQ analogues with variations in the aliphatic amino side chain or in the aromatic ring are synthesized and investigated. Our studies indicate that the aliphatic amino moiety of CQ is essential to provide increased gene expression. Further, the enhancements are more dramatically affected by changes to the aromatic ring and are positively correlated to the strength of intercalation between DNA and the CQ analogues. Quinacrine (QC), a CQ analogue with a fused acridinyl structure that can strongly intercalate DNA, enhances transfection similarly to CQ at a concentration 10 times lower, while N(4)-(4-pyridinyl)-N(1),N(1)-diethyl-1,4-pentanediamine (CP), a CQ analogue that has a weakly intercalating pyridinyl ring, shows no effect on gene expression. Subtle change on the 7-substituent of the chloroquine aromatic structure can also greatly affect the ability of the CQ analogues to enhance transgene expression. Transfection in the presence of N(4)-(7-trifluoromethyl-4-quinolinyl)-N(1),N(1)-diethyl-1,4-pentanediamin e (CQ7a) shows expression efficiency 10 times higher than in the presence of CQ at same concentration, while transfection in the presence of N(4)-(4-quinolinyl)-N(1),N(1)-diethyl-1,4-pentanediamine (CQ7b) does not reveal any enhancing effects on expression. Through a number of comparative studies with CQ and its analogues, we conclude that there are at least three mechanistic features of CQ that lead to the enhancement in gene expression: (i) pH buffering in endocytic vesicles, (ii) displacement of polycations from the nucleic acids in polyplexes, and (iii) alteration of the biophysical properties of the released nucleic acid.
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Affiliation(s)
- Jianjun Cheng
- Insert Therapeutics, 2585 Nina Street, Pasadena, CA 91107, USA
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Issa MM, Köping-Höggård M, Tømmeraas K, Vårum KM, Christensen BE, Strand SP, Artursson P. Targeted gene delivery with trisaccharide-substituted chitosan oligomers in vitro and after lung administration in vivo. J Control Release 2006; 115:103-12. [PMID: 16901570 DOI: 10.1016/j.jconrel.2006.06.029] [Citation(s) in RCA: 77] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2006] [Revised: 06/22/2006] [Accepted: 06/26/2006] [Indexed: 11/16/2022]
Abstract
The aim of this study was to improve the gene delivery efficacy of chitosan oligomer polyplexes by introducing a trisaccharide branch that targets cell-surface lectins. For this purpose, chitosan oligomers were substituted by a trisaccharide with the N-acetylglucosamine residue at the free end, and the ability of the trisaccharide-substituted chitosan oligomers (TCO) polyplexes to transfect various cell lines in vitro and lung tissue after in vivo administration to mice was investigated. Live-cell confocal microscopy showed improved cellular uptake in HEK 293 cells (11-fold, p<0.001) for the TCO polyplexes compared with the linear chitosan oligomers. Colloidal stability was also enhanced with the substituted form, which suggests that the trisaccharide branch stabilised the polyplexes by means of a steric stabilisation mechanism. Interestingly, gene expression levels in the human liver hepatocyte (HepG2) cells were 10-fold higher with the TCO polyplexes than those mediated by polyethyleneimine. A similar improvement was obtained in a human bronchial epithelial cell line (16HBE14o-). Transfection with the TCO was significantly inhibited (by 30-80%), for all the cell lines tested, in the presence of the free trisaccharide branch, confirming lectin-mediated uptake. Finally, in vivo studies showed that, 24 h after lung administration to mice, luciferase gene expression was 4-fold higher with the TCO than with the corresponding linear chitosan oligomers.
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Affiliation(s)
- Mohamed M Issa
- Department of Pharmacy, Uppsala University, Box 580, SE-751 23 Uppsala, Sweden
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41
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Mishra S, Heidel JD, Webster P, Davis ME. Imidazole groups on a linear, cyclodextrin-containing polycation produce enhanced gene delivery via multiple processes. J Control Release 2006; 116:179-91. [PMID: 16891028 DOI: 10.1016/j.jconrel.2006.06.018] [Citation(s) in RCA: 88] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2006] [Revised: 06/20/2006] [Accepted: 06/21/2006] [Indexed: 11/23/2022]
Abstract
The linear, cyclodextrin-containing polycation (CDP) is one of many non-viral gene delivery vectors that show improved transfection efficiency when modified to have pH-buffering capacity. The buffering activity is presumed to confer enhanced ability to escape the endocytic pathway. Here, the differences in delivery behavior between CDP and its pH-buffering, imidazole-containing variant (CDPim) are investigated in order to elucidate the mechanism(s) by which these related materials exhibit differences in gene delivery. In cell-free assays that include dye exclusion and heparan sulfate displacement, CDP appears to have weaker binding strength with nucleic acids than CDPim. Numerous analyses involving transfected cells, however, indicate that CDPim more readily releases nucleic acids in the intracellular setting. Together, these data suggest that differences in transfection efficiency between CDP and CDPim result from factors beyond buffering activity and endosomal escape.
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Affiliation(s)
- Swaroop Mishra
- Chemical Engineering, California Institute of Technology, Pasadena, CA 91125, USA
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El-Zaria ME, Genady AR, Gabel D. The first synthesis of azanonaborane-containing sugars, possible boron carriers for neutron capture therapy. NEW J CHEM 2006. [DOI: 10.1039/b513959g] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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43
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Synthetic yeast oligomannosides as biological probes: α-d-Manp (1→3) α-d-Manp (1→2) α-d-Manp and α-d-Manp (1→3) α-d-Manp (1→2) α-d-Manp (1→2) α-d-Manp as Crohn's disease markers. Tetrahedron 2005. [DOI: 10.1016/j.tet.2005.05.098] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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Mamede M, Saga T, Ishimori T, Higashi T, Sato N, Kobayashi H, Brechbiel MW, Konishi J. Hepatocyte targeting of 111In-labeled oligo-DNA with avidin or avidin-dendrimer complex. J Control Release 2004; 95:133-41. [PMID: 15013240 DOI: 10.1016/j.jconrel.2003.11.015] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2003] [Accepted: 11/11/2003] [Indexed: 11/30/2022]
Abstract
To establish an effective nonviral gene transfer vector to hepatocytes, various oligo-carrier complexes were developed employing dendrimer (G4) and avidin-biotin systems (Av-bt), and their biodistribution were evaluated. In-111-labeled-oligo, without any carriers, showed low uptake in normal organs other than the kidney (21.48% ID/g at 15 min, 18.48% ID/g at 60 min). In contrast, 111In-oligo coupled with avidin through biotin (111In-oligo-bt-Av) showed very high accumulation in the liver (50.95% at 15 min, 47.88% at 60 min). 111In-oligo complexed with G4 showed high uptake in the kidney and spleen, but its hepatic uptake was relatively low (13.12% at 15 min, 10.67% at 60 min). When both G4 and Av-bt systems were employed, 111In-oligo/G4-bt-Av showed extremely high uptake in the lung (182.33% at 15 min, 125.54% at 60 min), probably due to the formation of large molecular weight complex and aggregates which are trapped in the lung, and its hepatic uptake was lower than 111In-oligo-bt-Av. 111In-oligo-bt-Av, which exhibited the highest hepatic uptake in vivo, also showed high and rapid internalization into hepatocytes. The avidin-biotin system seems to have potential as a carrier of oligo-DNA to the liver.
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Affiliation(s)
- Marcelo Mamede
- Department of Nuclear Medicine and Diagnostic Imaging, Graduate School of Medicine, Kyoto University, 54 Kawahara-cho, Shogoin, Sakyo-ku, Kyoto 606-8507, Japan
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45
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Tyagi NK, Kinne RKH. Synthesis of photoaffinity probes [2′-iodo-4′-(3′′-trifluoromethyldiazirinyl)phenoxy]-d-glucopyranoside and [(4′-benzoyl)phenoxy]-d-glucopyranoside for the identification of sugar-binding and phlorizin-binding sites in the sodium/d-glucose cotransporter protein. Anal Biochem 2003; 323:74-83. [PMID: 14622961 DOI: 10.1016/j.ab.2003.08.004] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
In this paper we describe the synthesis and photochemical and biochemical properties of two new photoaffinity probes designed for studies on the structure-function relationship of the sodium D-glucose cotransporter (SGLT1). The two probes are [2(')-iodo-4(')-(3(")-trifluoromethyldiazirinyl)phenoxy]-D-glucopyranoside (TIPDG), a mimic for the phenyl glucopyranoside arbutin which is transported by SGLT1 with a very high affinity, and [(4(')-benzoyl)phenoxy]-D-glucopyranoside (BzG), a model compound for phlorizin, the most potent competitive inhibitor of sugar translocation by SGLT1. Both photoaffinity probes TIPDG (lambda(max)=358 nm) and BzG (lambda(max)=293 nm) can be activated at 350-360 nm, avoiding protein-damaging wavelengths. In inhibitor studies on sodium-dependent D-glucose uptake into rabbit intestinal brush border membrane vesicles TIPDG and BzG showed a fully competitive inhibition with regard to the sugar with respective K(i) values of 22+/-5 microM for TIPDG and 12+/-2 microM for BzG. These K(i) values are comparable to those of their parent compounds arbutin (25+/-6 microM) and phlorizin (8+/-1 microM). To further test the potential of TIPDG and BzG as photoaffinity probes, truncated loop 13 protein, supposed to be part of the substrate recognition site of SGLT1, was exposed to TIPDG and BzG in solution. Matrix-assisted laser desorption ionization time-of-flight mass spectrometry analysis demonstrated that TIPDG and BzG successfully labeled the protein. These preliminary results suggest that both photoaffinity probes are promising tools for the study of the structure-function relationship of SGLT1 and other SGLT1 family transporter proteins.
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Affiliation(s)
- Navneet Kumar Tyagi
- Department II. Epithelial Cell Physiology, Max-Planck Institute for Molecular Physiology, Otto-Hahn Str. 11, 44227 Dortmund, Germany
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Engel A, Chatterjee SK, Al-Arifi A, Nuhn P. Influence of Spacer Length on the Agglutination of Glycolipid‐Incorporated Liposomes by ConA as Model Membrane. J Pharm Sci 2003; 92:2229-35. [PMID: 14603508 DOI: 10.1002/jps.10481] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Through a systematic investigation of the agglutination of long chain mannolipid and glucolipid incorporated liposomes by concanavalin A (ConA) it was found that the agglutination was dependent on different factors. The studied factors reported here are (1) spacer length and (2) ground lipid matrix. The threshold and the relative saturating ConA binding concentration (saturation point to attain the binding saturation condition) of glycosides with varying spacer length for agglutination are dependent on the spacer length of the glycolipid. These concentrations decrease with the increasing number of in-built ethyleneoxy spacer length in the glycolipid and find its minimum with 6 spacer units; it increases then more and more with increasing number of spacer units (>6 units). This is supposed to be due to the requirement of a proper distance of the hydrophilic determinant from the liposome surface for the response by ConA (response invoking distance), which may be most favorable in case of 6 spacer units. Further increase in number of spacer units (>6) results to an increasing probability of the bending of the spacer chain along with the terminal polar head group more and more towards the liposome surface; this leads to a reduction of the factual distance of the terminal hydrophilic head group from the liposome surface, weakening the response for ConA binding. The threshold concentration or saturation point decreases also with the rigidity of the ground lipid matrix. Increased rigidity of the ground matrix leads to a phase separation and localized 'Domain' formation with the glycolipid inside the ground matrix layer due to their immiscibility, invoking better response resulting to a reduction of required incorporated glycolipid concentration.
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Affiliation(s)
- Andreas Engel
- Department of Pharmacy, Institute of Pharmaceutical Chemistry, Martin-Luther-University Halle-Wittenberg, 06120 Halle, Germany
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Abstract
Non-viral methods of gene transfer are being investigated to treat cystic fibrosis (CF) and include naked DNA, lipid-DNA complexes and complexes of DNA with polycations such as poly-L-lysine (poly K) or polyethylenimine (PEI), all of which can carry the cystic fibrosis transmembrane conductance regulator (CFTR) gene. The most recent promising strategy is the use of polycation-DNA complexes, particularly those prepared with poly-K and substituted with polyethylene glycol. These complexes produced partial correction of the CF defect in a mouse model with minimal toxicity, and have advanced to clinical trial. Improvements in this and other non-viral methods are in process and include i). targeting the complexes to the desired cells using receptor ligands, ii). lessening toxicity by changing the mix of lipids or adding protective molecules to polycations, iii). modifying the plasmid DNA to reduce inflammatory CpG sequences and enhance intensity, duration and tissue specificity of expression, and iv). modification of the complexes to improve nuclear access.
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Affiliation(s)
- Assem G Ziady
- Department of Pediatrics, Case Western Reserve University, 11100 Euclid Avenue, Cleveland, OH 44106, USA.
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Klein J, Hüttermann CF, Skeries B. Synthesis of Novel Maleicamido Saccharides and Their Copolymerization with Vinylamides. JOURNAL OF MACROMOLECULAR SCIENCE PART A-PURE AND APPLIED CHEMISTRY 2003. [DOI: 10.1081/ma-120016671] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Fajac I, Grosse S, Briand P, Monsigny M. Targeting of cell receptors and gene transfer efficiency: a balancing act. Gene Ther 2002; 9:740-2. [PMID: 12032700 DOI: 10.1038/sj.gt.3301738] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Vectors conjugated with ligands recognized by cell surface receptors are of interest for cystic fibrosis gene therapy since these vectors would allow cell-specific targeting. However, an efficient and specific uptake may be abrogated by a subsequent intracellular trafficking leading to an inefficient gene transfer. This has been shown for polylysine substituted with mannose residues. While mannose-specific membrane lectins are predominantly expressed at the surface of airway cells and mannosylated complexes are the most efficiently incorporated glycosylated complexes in these cells, mannosylated complexes lead to a low gene transfer efficiency because of an inefficient exit from endosomal compartments, a high accumulation in lysosomes and an inefficient nuclear import. In contrast, the entry of low amounts of lactosylated complexes is balanced by more efficient intracellular trafficking, leading to an efficient gene transfer. This emphasizes that for a successful gene transfer, it is necessary to find the balance between efficient and specific uptake, and intracellular trafficking that overcomes the various cellular barriers and enables the plasmid to reach the nucleus.
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Affiliation(s)
- I Fajac
- Laboratoire de Physiologie Respiratoire, CHU Cochin, AP-HP-Université Paris V, Paris, France
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50
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Abstract
Cell-specific DNA delivery offers a great potential for targeted gene therapy. Toward this end, we have synthesized a series of compounds carrying galactose residues as a targeting ligand for asialoglycoprotein receptors of hepatocytes and primary amine groups as a functional domain for DNA binding. Biological activity of these galactosyl compounds in DNA delivery was evaluated in HepG2 and BL-6 cells and compared with respect to the number of galactose residues as well as primary amine groups in each molecule. Transfection experiments using a firefly luciferase gene as a reporter revealed that compounds with multivalent binding properties were more active in DNA delivery. An optimal transfection activity in HepG2 cells requires seven primary amine groups and a minimum of two galactose residues in each molecule. The transfection activity of compounds carrying multi-galactose residues can be inhibited by asialofetuin, a natural substrate for asialoglycoprotein receptors of hepatocytes, suggesting that gene transfer by these galactosyl compounds is asialoglycoprotein receptor-mediated. These results provide direct evidence in support of our new strategy for the use of small and synthetic compounds for cell specific and targeted gene delivery.
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Affiliation(s)
- T Ren
- Department of Pharmaceutical Sciences, School of Pharmacy, University of Pittsburgh, Pittsburgh, PA 15261, USA
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