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Lau CML, Jahanmir G, Yu Y, Chau Y. Controllable multi-phase protein release from in-situ hydrolyzable hydrogel. J Control Release 2021; 335:75-85. [PMID: 33971140 DOI: 10.1016/j.jconrel.2021.05.006] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2021] [Revised: 05/01/2021] [Accepted: 05/04/2021] [Indexed: 11/17/2022]
Abstract
Using hydrogels to control the long-term release of protein remains challenging, especially for in-situ forming formulations. The uncontrollable burst release in the initial phase, the halted release in the subsequent phase, and the undesired drug dumping at the late stage are some obstacles hydrogel-based depots commonly encounter. In this study, we report hydrolyzable dextran-based hydrogels crosslinked by Michael addition to demonstrate a systematic solution to solve these problems. First, the polymer concentration was used as the critical parameter to control the proportion of releasable versus physically trapped protein molecules in the initial hydrogel meshwork. Subsequently, the dynamic change of the hydrogel meshwork was modulated by the crosslinking density and the cleavage rate of ester linkers. To this end, we designed and synthesized a series of ester linkers with hydrolytic half-life ranging from 4 h to 4 months and incorporate them into the hydrogel. Controlled release was demonstrated for model proteins varied in size, including lysozyme (14 kDa), bovine serum albumin (66 kDa), immunoglobulin G (150 kDa), and bevacizumab (149 kDa). In particular, sustained release of IgG ranging from 10 days to 8 months was achieved. Lastly, a tunable multi-phase release profile was made feasible by incorporating multiple ester linkers into one hydrogel formulation. The linker's half-life determined each phase's release duration, and the linkers' mixing ratio determined the corresponding release fraction. The reported hydrogel design engenders a versatile platform to address the needs for long-term and readily adjustable protein release for biomedical applications.
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Affiliation(s)
- Chi Ming Laurence Lau
- Department of Chemical and Biological Engineering, The Hong Kong University of Science and Technology, Hong Kong, China; The Hong Kong University of Science and Technology Shenzhen Research Institute, Shenzhen, China
| | - Ghodsiehsadat Jahanmir
- Department of Chemical and Biological Engineering, The Hong Kong University of Science and Technology, Hong Kong, China
| | - Yu Yu
- Department of Chemical and Biological Engineering, The Hong Kong University of Science and Technology, Hong Kong, China; Pleryon Therapeutics Ltd., Shenzhen, China
| | - Ying Chau
- Department of Chemical and Biological Engineering, The Hong Kong University of Science and Technology, Hong Kong, China; The Hong Kong University of Science and Technology Shenzhen Research Institute, Shenzhen, China.
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2
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Mihai D, Mocanu G, Carpov A. Macromolecular-Drug Conjugates—Nalidixic Acid and Oxacillin-Dextran. J BIOACT COMPAT POL 2016. [DOI: 10.1177/088391150001500304] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Dextran conjugates with nalidixic acid and oxacillin, were prepared in two ways: (a) by the reaction of the drugs with chloroacetylated crosslinked dextran microparticles and (b) by the reaction of the drugs with crosslinked polysaccharide microparticles in the presence of a coupling agent. The in vitro behavior of these conjugates was studied and the mechanism of drug release was determined.
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Affiliation(s)
- Doina Mihai
- "Petru Poni" Institute of Macromolecular Chemistry, 6600 Iassy, Romania
| | - Georgeta Mocanu
- "Petru Poni" Institute of Macromolecular Chemistry, 6600 Iassy, Romania
| | - Adrian Carpov
- "Petru Poni" Institute of Macromolecular Chemistry, 6600 Iassy, Romania
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3
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Toman P, Lien CF, Ahmad Z, Dietrich S, Smith JR, An Q, Molnár É, Pilkington GJ, Górecki DC, Tsibouklis J, Barbu E. Nanoparticles of alkylglyceryl-dextran-graft-poly(lactic acid) for drug delivery to the brain: Preparation and in vitro investigation. Acta Biomater 2015; 23:250-262. [PMID: 25983313 DOI: 10.1016/j.actbio.2015.05.009] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2014] [Revised: 04/20/2015] [Accepted: 05/08/2015] [Indexed: 10/23/2022]
Abstract
Poly(lactic acid), which has an inherent tendency to form colloidal systems of low polydispersity, and alkylglyceryl-modified dextran - a material designed to combine the non-immunogenic and stabilising properties of dextran with the demonstrated permeation enhancing ability of alkylglycerols - have been combined for the development of nanoparticulate, blood-brain barrier-permeating, non-viral vectors. To this end, dextran, that had been functionalised via treatment with epoxide precursors of alkylglycerol, was covalently linked to poly(lactic acid) using a carbodiimide cross-linker to form alkylglyceryl-modified dextran-graft-poly(lactic acid). Solvent displacement and electrospray methods allowed the formulation of these materials into nanoparticles having a unimodal size distribution profile of about 100-200nm and good stability at physiologically relevant pH (7.4). The nanoparticles were characterised in terms of hydrodynamic size (by Dynamic Light Scattering and Nanoparticle Tracking Analysis), morphology (by Scanning Electron Microscopy and Atomic Force Microscopy) and zeta potential, and their toxicity was evaluated using MTT and PrestoBlue assays. Cellular uptake was evidenced by confocal microscopy employing nanoparticles that had been loaded with the easy-to-detect Rhodamine B fluorescent marker. Transwell-model experiments employing mouse (bEnd3) and human (hCMEC/D3) brain endothelial cells revealed enhanced permeation (statistically significant for hCMEC/D3) of the fluorescent markers in the presence of the nanoparticles. Results of studies using Electric Cell Substrate Impedance Sensing suggested a transient decrease of the barrier function in an in vitro blood-brain barrier model following incubation with these nanoformulations. An in ovo study using 3-day chicken embryos indicated the absence of whole-organism acute toxicity effects. The collective in vitro data suggest that these alkylglyceryl-modified dextran-graft-poly(lactic acid) nanoparticles are promising candidates for in vivo evaluations that would test their capability to transport therapeutic actives to the brain.
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4
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Stanley N, Bucataru G, Miao Y, Favrelle A, Bria M, Stoffelbach F, Woisel P, Zinck P. Brønsted acid-catalyzed polymerization of ε-caprolactone in water: A mild and straightforward route to poly(ε-caprolactone)-graft
-water-soluble polysaccharides. ACTA ACUST UNITED AC 2014. [DOI: 10.1002/pola.27250] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Nicholas Stanley
- Unity of Catalysis and Solid State Chemistry, UMR CNRS 8181; University Lille 1, Science and Technology; Bât C7, Cité Scientifique, 59655 Villeneuve d'Ascq Cédex France
| | - Georgiana Bucataru
- Unity of Catalysis and Solid State Chemistry, UMR CNRS 8181; University Lille 1, Science and Technology; Bât C7, Cité Scientifique, 59655 Villeneuve d'Ascq Cédex France
| | - Yong Miao
- Unity of Catalysis and Solid State Chemistry, UMR CNRS 8181; University Lille 1, Science and Technology; Bât C7, Cité Scientifique, 59655 Villeneuve d'Ascq Cédex France
| | - Audrey Favrelle
- Unity of Catalysis and Solid State Chemistry, UMR CNRS 8181; University Lille 1, Science and Technology; Bât C7, Cité Scientifique, 59655 Villeneuve d'Ascq Cédex France
| | - Marc Bria
- Centre Commun de mesure RMN; Université Lille 1, Science and Technology; Bât C4, Cité Scientifique, 59655 Villeneuve d'Ascq Cédex France
| | - Francois Stoffelbach
- Sorbonne Universités, UPMC Univ Paris 06, UMR CNRS 8232, IPCM, Chimie des Polymères; F-75005 Paris France
| | - Patrice Woisel
- Unite des Materiaux Et Transformations, UMET, UMR CNRS 8207, Equipe Ingenierie des Systemes Polymeres, Université Lille 1, Science and Technology; 59655 Villeneuve d'Ascq Cédex France
| | - Philippe Zinck
- Unity of Catalysis and Solid State Chemistry, UMR CNRS 8181; University Lille 1, Science and Technology; Bât C7, Cité Scientifique, 59655 Villeneuve d'Ascq Cédex France
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Pirmettis I, Arano Y, Tsotakos T, Okada K, Yamaguchi A, Uehara T, Morais M, Correia JDG, Santos I, Martins M, Pereira S, Triantis C, Kyprianidou P, Pelecanou M, Papadopoulos M. New (99m)Tc(CO)(3) mannosylated dextran bearing S-derivatized cysteine chelator for sentinel lymph node detection. Mol Pharm 2012; 9:1681-92. [PMID: 22519912 DOI: 10.1021/mp300015s] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The aim of the present study is to synthesize new mannosylated dextran derivative that can be labeled with Tc-99m for potential use in sentinel lymph node detection (SLND). The compound was designed to have a dextran with molecular weight of 10 kDa as a backbone, mannose for binding to mannose receptors of the lymph node and S-derivatized cysteine as a suitable chelator for labeling with [(99m)Tc(H(2)O)(3)(CO)(3)](+) precursor. Reaction of allyl bromide with dextran (MW 11800) yielded the intermediate allyl-dextran (1) with about 40% coupling. Addition of cysteine to allyl-dextran resulted in the S-derivatized cysteine, compound DC15 (2). The final product DCM20 (3) was obtained in good yield after in situ hydrolysis and activation of cyanomethyl tetraacetyl-1-thio-d-mannopyranoside and coupling to DC15. All derivatives were purified by ultrafiltration and characterized by NMR. DC15 and DCM20 were quantitatively labeled with (99m)Tc (>95% radiochemical purity) using the fac-[(99m)Tc(OH(2))(3)(CO)(3)](+) precursor and ligand concentration of 1.5 × 10(-6) M at neutral pH. Both (99m)Tc-labeled compounds (99m)Tc(CO)(3)-DC15 (6) and (99m)Tc(CO)(3)-DCM20 (7) remained stable after 6 h incubation at 37 °C in the presence of excess histidine or cysteine, as well as even after 20-fold dilution and incubation for 24 h at room temperature. The characterization of the compounds 6 and 7 was performed by comparing their HPLC radiochromatograms with those of their rhenium surrogates Re(CO)(3)-DC15 (4) and Re(CO)(3)-DCM20 (5) respectively that were prepared using the precursor [NEt(4)](2)fac-[ReBr(3)(CO)(3)] and characterized by IR and NMR spectroscopy. When injected subcutaneously from the foot pad of mice, (99m)Tc-labeled mannosylated dextran (7) showed accumulation in the popliteal lymph node (SLN in this model) higher than that of non-mannosylated analogue (6) and the (99m)Tc-phytate serving as standard. Compound 7 also exhibited lower radioactivity levels at the injection site compared to (99m)Tc-phytate. The SPECT/CT studies in mice confirmed that 7 accumulated in the popliteal lymph node allowing its clear visualization. The present findings demonstrate that compound 7 ((99m)Tc(CO)(3)-DCM20) is promising and merits further evaluation as a radiopharmaceutical for sentinel lymph node detection.
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Affiliation(s)
- I Pirmettis
- Institute of Radioisotopes and Radiodiagnostic Products, NCSR Demokritos, 15310 Ag. Paraskevi, Athens, Greece.
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6
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Chiellini E, D'Antone S, Solaro R. Biodegradable synthetic and semisynthetic polymers. ACTA ACUST UNITED AC 2011. [DOI: 10.1002/masy.19971230105] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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7
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Abdurrahmanoglu S, Firat Y. Synthesis and characterization of new dextran-acrylamide gels. J Appl Polym Sci 2007. [DOI: 10.1002/app.27023] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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8
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Jantas R, Draczyński Z, Stawski D. Starch Functionalized by Chloroacetate Groups: Coupling of Bioactive Salicylic Acid. STARCH-STARKE 2007. [DOI: 10.1002/star.200700599] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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9
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Hornig S, Liebert T, Heinze T. Structure Design of Multifunctional Furoate and Pyroglutamate Esters of Dextran by Polymer-Analogous Reactions. Macromol Biosci 2007; 7:297-306. [PMID: 17366516 DOI: 10.1002/mabi.200600189] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Well-defined multifunctionalized dextran esters bearing photo-crosslinkable and chiral groups as well as small alkyl moieties for the adjustment of the solubility were prepared from two dextran samples with different origin and molecular weight. The examination of side structures of the starting dextran was carried out by different one- and two-dimensional NMR techniques. The main synthesis path via in situ activation of furan-2-carboxylic- and pyroglutamic acid with CDI under mild conditions gives highly functionalized dextran derivatives possessing a degree of polymerization in the range of the starting polysaccharide. The subsequent reaction with propionic anhydride leads to completely substituted, CHCl(3) soluble derivatives useful for the determination of the particular degree of substitution. By variation of the molar ratios of polymer to reagent with photo-crosslinkable- and chiral moieties during the reaction and even by subsequent peracylation, multifunctional dextran derivatives with adjustable properties like the hydrophilic/hydrophobic balance were obtained that may form biocompatible spherical nanoparticles.
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Affiliation(s)
- Stephanie Hornig
- Center of Excellence for Polysaccharide Research, Friedrich Schiller University of Jena, Humboldtstrasse 10, Jena, Germany
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10
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Jantas R. Synthesis and characterization of poly(2-hydroxyethyl methacrylate)-1-naphthylacetic acid adduct. Polym Bull (Berl) 2006. [DOI: 10.1007/s00289-006-0696-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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11
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Abstract
Dextrans and pullulans of different molar masses in the range of 10(4)-10(5) g/mol were sulphated via a SO3-pyridine complex. The degree of substitution achieved was DS = 2.4 and DS = 1.4 for dextran sulphate and DS = 2.0 and DS = 1.4 for pullulan sulphate, respectively. Confirmation of sulphation was given by FTIR spectroscopy. Asymmetrical S=O and symmetrical C-O-S stretching vibrations were detected at 1260 and 820 cm(-1). Reactivity of the polysaccharide C-atoms was determined by 13C NMR spectroscopy: For dextran this was C-3 > C-2 > C-4, while for pullulan it was C-6 > C-3 > C-2 > C-4.
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Affiliation(s)
- C Mähner
- Department of Physical Chemistry, University of Osnabrück, Germany
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12
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Jenkins DW, Hudson SM. Heterogeneous chloroacetylation of chitosan powder in the presence of sodium bicarbonate. ACTA ACUST UNITED AC 2001. [DOI: 10.1002/pola.10067] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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13
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14
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15
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Anticoagulant activity of functionalized dextrans. Structure analyses of carboxymethylated dextran and first Monte Carlo simulations. Carbohydr Polym 1997. [DOI: 10.1016/s0144-8617(96)00173-7] [Citation(s) in RCA: 24] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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16
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Arranz F, Sanchez-Chaves M. Functionalization of amylose with chloroacetate groups and their derivation with α-naphthylacetic acid. Heterogeneous hydrolytic behaviour of the resulting adducts. REACT FUNCT POLYM 1995. [DOI: 10.1016/1381-5148(95)00084-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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17
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Ramirez JC, Sanchez-Chaves M, Arranz F. Heterogeneous hydrolytic behaviour of dextran-α-naphthylacetic and dextran-naproxen adducts. POLYMER 1994. [DOI: 10.1016/0032-3861(94)90605-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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