1
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Wang Y, Lv S, Cao F, Ding Z, Liu J, Chen Q, Gao J, Huang X. Investigations on the influence of the structural flexibility of nanoliposomes on their properties. J Liposome Res 2021; 32:92-103. [PMID: 34890290 DOI: 10.1080/08982104.2021.1998106] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
In the present study, nanoliposomes with tuneable structure elasticity were prepared by reverse-phase evaporation. Both Fluorescence Polarization and Fluorescence Resonance Energy Transfer was employed to characterize the structural elasticity of resultant nanoliposomes. Temozolomide, a kind of hydrophilic drug as the first-line treatment choice for glioblastoma, was encapsulated into nanoliposomes. The results showed that the flexibility of nanoliposomes gradually increased with sodium cholate, while decreasing with cholesterol, Labrafac CC and Labrafac PG adding. Furthermore, the structural flexibility of nanoliposomes was positively correlated with the encapsulation efficiency and release rate and cellular uptake. Our research reveals the structural flexibility of nanoliposomes could affect in vitro characteristics and thereafter in vivo behaviors of nanoliposomes.
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Affiliation(s)
- Yajing Wang
- Department of Pharmacy, School of Pharmacy, Changzhou University, Changzhou, China
| | - Shiqun Lv
- Department of Pharmacy, School of Pharmacy, Changzhou University, Changzhou, China
| | - Fangzhi Cao
- Department of Pharmacy, School of Pharmacy, Changzhou University, Changzhou, China
| | - Ziwei Ding
- Department of Pharmacy, School of Pharmacy, Changzhou University, Changzhou, China
| | - Jie Liu
- Department of Pharmacy, School of Pharmacy, Changzhou University, Changzhou, China
| | - Qian Chen
- Department of Pharmacy, School of Pharmacy, Changzhou University, Changzhou, China
| | - Jun Gao
- Department of Orthaopaedics, Changzhou Chinese Traditional Medicine Hospital, Changzhou, China
| | - Xianfeng Huang
- Department of Pharmacy, School of Pharmacy, Changzhou University, Changzhou, China
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2
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Nakamoto M, Escalante T, Gutiérrez JM, Shea KJ. A Biomimetic of Endogenous Tissue Inhibitors of Metalloproteinases: Inhibition Mechanism and Contribution of Composition, Polymer Size, and Shape to the Inhibitory Effect. NANO LETTERS 2021; 21:5663-5670. [PMID: 34181420 DOI: 10.1021/acs.nanolett.1c01357] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
A biomimetic of endogenous tissue inhibitors of metalloproteinases (TIMPs) was engineered by introducing three binding elements to a synthetic tetrapolymer. We evaluated the contribution of composition, size, and shape of the TIMP-mimicking polymers to the inhibition of BaP1, a P-I class snake venom metalloproteinase (SVMP). Inhibition was achieved when the size of the linear polymer (LP) was comparable to or greater than that of the enzyme, indicating the efficacy requires binding to a significant portion of the enzyme surface in the vicinity of the active site. The efficacy of a low cross-linked polymer hydrogel nanoparticle (NP) of substantially greater molecular weight was comparable to that of the LPs despite differences in size and shape, an important finding for in vivo applications. The abiotic TIMP was effective against two classes of SVMPs in whole snake venom. The results can serve as a design principle for biomimetic polymer inhibitors of enzymes.
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Affiliation(s)
- Masahiko Nakamoto
- Department of Chemistry, University of California, Irvine, Irvine, California 92697, United States
| | - Teresa Escalante
- Instituto Clodomiro Picado, Facultad de Microbiología, Universidad de Costa Rica, San José 11501, Costa Rica
| | - José M Gutiérrez
- Instituto Clodomiro Picado, Facultad de Microbiología, Universidad de Costa Rica, San José 11501, Costa Rica
| | - Kenneth J Shea
- Department of Chemistry, University of California, Irvine, Irvine, California 92697, United States
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3
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Nagao M, Kichize M, Hoshino Y, Miura Y. Influence of Monomer Structures for Polymeric Multivalent Ligands: Consideration of the Molecular Mobility of Glycopolymers. Biomacromolecules 2021; 22:3119-3127. [PMID: 34152744 DOI: 10.1021/acs.biomac.1c00553] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Molecular mobility is important for interactions of biofunctional polymers with target molecules. Monomer structures for synthetic biofunctional polymers are usually selected based on their compatibility with polymerization systems, whereas the influence of monomer structures on the interaction with target molecules is hardly considered. In this report, we evaluate the correlation between the monomer structures of glycopolymers and their interactions with concanavalin A (ConA) with respect to the molecular mobility. Two types of glycopolymers bearing mannose are synthesized with acrylamide or acrylate monomers. Despite the similar structures, except for amide or ester bonds in the side chains, the acrylate-type glycopolymers exhibit stronger interaction with ConA both in the isothermal titration calorimetry measurement and in a hemagglutination inhibition assay. Characterization of the acrylate-type glycopolymers suggests that the higher binding constant arises from the higher molecular mobility of mannose units, which results from the rotational freedom of ester bonds in their side chains.
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Affiliation(s)
- Masanori Nagao
- Department of Chemical Engineering, Kyushu University, 744 Motooka Nishi-ku, Fukuoka 819-0395, Japan
| | - Masaya Kichize
- Department of Chemical Engineering, Kyushu University, 744 Motooka Nishi-ku, Fukuoka 819-0395, Japan
| | - Yu Hoshino
- Department of Chemical Engineering, Kyushu University, 744 Motooka Nishi-ku, Fukuoka 819-0395, Japan
| | - Yoshiko Miura
- Department of Chemical Engineering, Kyushu University, 744 Motooka Nishi-ku, Fukuoka 819-0395, Japan
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4
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Wilms D, Schröer F, Paul TJ, Schmidt S. Switchable Adhesion of E. coli to Thermosensitive Carbohydrate-Presenting Microgel Layers: A Single-Cell Force Spectroscopy Study. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2020; 36:12555-12562. [PMID: 32975417 DOI: 10.1021/acs.langmuir.0c02040] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Adhesion processes at the cellular scale are dominated by carbohydrate interactions, including the attachment and invasion of pathogens. Carbohydrate-presenting responsive polymers can bind pathogens and inhibit pathogen invasion by remote stimuli for the development of new antibiotic strategies. In this work, the adhesion forces of E. coli to monolayers composed of mannose-functionalized microgels with thermosensitive poly(N-isopropylacrylamide) (PNIPAM) and poly(oligo(ethylene glycol)) (PEG) networks are quantified using single-cell force spectroscopy (SCFS). When exceeding the microgels' lower critical solution temperature (LCST), the adhesion increases up to 2.5-fold depending on the polymer backbone and the mannose density. For similar mannose densities, the softer PNIPAM microgels show a significantly stronger adhesion increase when crossing the LCST as compared to the stiffer PEG microgels. This is explained by a stronger shift in swelling, mannose density, and surface roughness of the softer gels when crossing the LCST. When using nonbinding galactose instead of mannose, or when inhibiting bacterial receptors, a certain level of adhesion remains, indicating that also polymer-fimbria entanglements contribute to adhesion. The presented quantitative analysis provides insights into carbohydrate-mediated bacterial adhesion and the relation to material properties and shows the prospects and limitations of interactive polymer materials to control the attachment of bacteria.
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Affiliation(s)
- Dimitri Wilms
- Institute for Organic and Macromolecular Chemistry, Heinrich-Heine-University, Universitätsstr. 1, 40225 Düsseldorf, Germany
| | - Fabian Schröer
- Institute for Organic and Macromolecular Chemistry, Heinrich-Heine-University, Universitätsstr. 1, 40225 Düsseldorf, Germany
| | - Tanja J Paul
- Institute for Organic and Macromolecular Chemistry, Heinrich-Heine-University, Universitätsstr. 1, 40225 Düsseldorf, Germany
| | - Stephan Schmidt
- Institute for Organic and Macromolecular Chemistry, Heinrich-Heine-University, Universitätsstr. 1, 40225 Düsseldorf, Germany
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5
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Ferreira RS, Lira AL, Sousa AA. Quantitative mechanistic model for ultrasmall nanoparticle-protein interactions. NANOSCALE 2020; 12:19230-19240. [PMID: 32929438 DOI: 10.1039/d0nr04846a] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
To date, extensive effort has been devoted toward the characterization of protein interactions with synthetic nanostructures. However, much remains to be understood, particularly concerning microscopic mechanisms of interactions. Here, we have conducted a detailed investigation of the kinetics of nanoparticle-protein complexation to gain deeper insights into the elementary steps and molecular events along the pathway for complex formation. Toward that end, the binding kinetics between p-mercaptobenzoic acid-coated ultrasmall gold nanoparticles (AuMBA) and fluorescently-labeled ubiquitin was investigated at millisecond time resolution using stopped-flow spectroscopy. It was found that both the association and dissociation kinetics consisted of multiple exponential phases, hence suggesting a complex, multi-step reaction mechanism. The results fit into a picture where complexation proceeds through the formation of a weakly-bound first-encounter complex with an apparent binding affinity (KD) of ∼9 μM. Encounter complex formation is followed by unimolecular tightening steps of partial desolvation/ion removal and conformational rearrangement, which, collectively, achieve an almost 100-fold increase in affinity of the final bound state (apparent KD ∼0.1 μM). The final state is found to be weakly stabilized, displaying an average lifetime in the range of seconds. Screening of the electrostatic forces at high ionic strength weakens the AuMBA-ubiquitin interactions by destabilizing the encounter complex, whereas the average lifetime of the final bound state remains largely unchanged. Overall, our rapid kinetics investigation has revealed novel quantitative insights into the molecular-level mechanisms of ultrasmall nanoparticle-protein interactions.
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Affiliation(s)
- Rodrigo S Ferreira
- Department of Biochemistry, Federal University of São Paulo, São Paulo, SP 04044-020, Brazil.
| | - André L Lira
- Department of Biochemistry, Federal University of São Paulo, São Paulo, SP 04044-020, Brazil.
| | - Alioscka A Sousa
- Department of Biochemistry, Federal University of São Paulo, São Paulo, SP 04044-020, Brazil.
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6
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Watanabe T, Nishizawa Y, Minato H, Song C, Murata K, Suzuki D. Hydrophobic Monomers Recognize Microenvironments in Hydrogel Microspheres during Free-Radical-Seeded Emulsion Polymerization. Angew Chem Int Ed Engl 2020; 59:8849-8853. [PMID: 32232936 DOI: 10.1002/anie.202003493] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2020] [Revised: 03/25/2020] [Indexed: 11/10/2022]
Abstract
The three-dimensional structure of nanocomposite microgels was precisely determined by cryo-electron micrography. Several nanocomposite microgels that differ with respect to their nanocomposite structure, which were obtained from seeded emulsion polymerization in the presence of microgels, were used as model nanocomposite materials for cryo-electron micrography. The obtained three-dimensional segmentation images of these nanocomposite microgels provide important insights into the interactions between the hydrophobic monomers and the microgels, that is, hydrophobic styrene monomers recognize molecular-scale differences in polarity within the microgels during the emulsion polymerization. This result led to the formation of unprecedented multi-layered nanocomposite microgels, which promise substantial potential in colloidal applications.
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Affiliation(s)
- Takumi Watanabe
- Graduate School of Textile Science & Technology, Shinshu University, 3-15-1 Tokida Ueda, Nagano, 386-8567, Japan
| | - Yuichiro Nishizawa
- Graduate School of Textile Science & Technology, Shinshu University, 3-15-1 Tokida Ueda, Nagano, 386-8567, Japan
| | - Haruka Minato
- Graduate School of Textile Science & Technology, Shinshu University, 3-15-1 Tokida Ueda, Nagano, 386-8567, Japan
| | - Chihong Song
- Department National Institute for Physiological Sciences, 38 Nishigonaka, Okazaki, Aichi, 444-8585, Japan
| | - Kazuyoshi Murata
- Department National Institute for Physiological Sciences, 38 Nishigonaka, Okazaki, Aichi, 444-8585, Japan
| | - Daisuke Suzuki
- Graduate School of Textile Science & Technology, Shinshu University, 3-15-1 Tokida Ueda, Nagano, 386-8567, Japan.,Research Initiative for Supra-Materials, Interdisciplinary Cluster for Cutting Edge Research, Shinshu University, 3-15-1 Tokida Ueda, Nagano, 386-8567, Japan
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7
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Watanabe T, Nishizawa Y, Minato H, Song C, Murata K, Suzuki D. Hydrophobic Monomers Recognize Microenvironments in Hydrogel Microspheres during Free‐Radical‐Seeded Emulsion Polymerization. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202003493] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Takumi Watanabe
- Graduate School of Textile Science & Technology Shinshu University 3-15-1 Tokida Ueda Nagano 386-8567 Japan
| | - Yuichiro Nishizawa
- Graduate School of Textile Science & Technology Shinshu University 3-15-1 Tokida Ueda Nagano 386-8567 Japan
| | - Haruka Minato
- Graduate School of Textile Science & Technology Shinshu University 3-15-1 Tokida Ueda Nagano 386-8567 Japan
| | - Chihong Song
- Department National Institute for Physiological Sciences 38 Nishigonaka Okazaki Aichi 444-8585 Japan
| | - Kazuyoshi Murata
- Department National Institute for Physiological Sciences 38 Nishigonaka Okazaki Aichi 444-8585 Japan
| | - Daisuke Suzuki
- Graduate School of Textile Science & Technology Shinshu University 3-15-1 Tokida Ueda Nagano 386-8567 Japan
- Research Initiative for Supra-Materials Interdisciplinary Cluster for Cutting Edge Research Shinshu University 3-15-1 Tokida Ueda Nagano 386-8567 Japan
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8
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Koide H, Fukuta T, Okishim A, Ariizumi S, Kiyokawa C, Tsuchida H, Nakamoto M, Yoshimatsu K, Ando H, Dewa T, Asai T, Oku N, Hoshino Y, Shea KJ. Engineering the Binding Kinetics of Synthetic Polymer Nanoparticles for siRNA Delivery. Biomacromolecules 2019; 20:3648-3657. [DOI: 10.1021/acs.biomac.9b00611] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Hiroyuki Koide
- Department of Medical Biochemistry, School of Pharmaceutical Sciences, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka, Shizuoka 422-8526, Japan
| | - Tatsuya Fukuta
- Department of Medical Biochemistry, School of Pharmaceutical Sciences, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka, Shizuoka 422-8526, Japan
| | - Anna Okishim
- Department of Medical Biochemistry, School of Pharmaceutical Sciences, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka, Shizuoka 422-8526, Japan
| | - Saki Ariizumi
- Department of Medical Biochemistry, School of Pharmaceutical Sciences, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka, Shizuoka 422-8526, Japan
| | - Chiaki Kiyokawa
- Department of Medical Biochemistry, School of Pharmaceutical Sciences, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka, Shizuoka 422-8526, Japan
| | - Hiroki Tsuchida
- Department of Medical Biochemistry, School of Pharmaceutical Sciences, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka, Shizuoka 422-8526, Japan
| | - Masahiko Nakamoto
- Department of Chemical Engineering, Kyushu University, 744 Motooka, Fukuoka 819-0395, Japan
| | - Keiichi Yoshimatsu
- Department of Chemistry, University of California Irvine, Irvine, California 92697 United States
| | - Hidenori Ando
- Department of Medical Biochemistry, School of Pharmaceutical Sciences, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka, Shizuoka 422-8526, Japan
| | - Takehisa Dewa
- Department of Life Science and Applied Chemistry, Graduate School of Engineering, Nagoya Institute of Technology, Gokiso-cho, Showa-ku, Nagoya, Aichi 466-8555, Japan
| | - Tomohiro Asai
- Department of Medical Biochemistry, School of Pharmaceutical Sciences, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka, Shizuoka 422-8526, Japan
| | - Naoto Oku
- Department of Medical Biochemistry, School of Pharmaceutical Sciences, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka, Shizuoka 422-8526, Japan
| | - Yu Hoshino
- Department of Chemical Engineering, Kyushu University, 744 Motooka, Fukuoka 819-0395, Japan
| | - Kenneth J. Shea
- Department of Chemistry, University of California Irvine, Irvine, California 92697 United States
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9
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Jiang L, Ye L. Nanoparticle-supported temperature responsive polymer brushes for affinity separation of histidine-tagged recombinant proteins. Acta Biomater 2019; 94:447-458. [PMID: 31055124 DOI: 10.1016/j.actbio.2019.04.056] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2019] [Revised: 04/25/2019] [Accepted: 04/25/2019] [Indexed: 01/14/2023]
Abstract
We developed a modular approach for the preparation of nanoparticle-supported polymer brushes carrying repeating iminodiacetate units for affinity separation of histidine-tagged recombinant proteins. The nanoparticle-supported polymer brushes were prepared via the combination of surface-initiated atom transfer radical polymerization with Cu(I)-catalyzed azide-alkyne cycloaddition reaction. The nanocomposite materials were characterized to determine the particle size, morphology, organic content, densities of polymer chains and the affinity ligand. Protein binding assay illustrated that the iminodiacetate-rich polymer brushes enable to selectively bind histidine-tagged recombinant proteins in the presence of abundant interfering proteins. More importantly, the protein binding capacity can be tuned by adjusting the environmental temperature. STATEMENT OF SIGNIFICANCE: The nanoparticle core-polymer brush structure enables selective binding of histidine-tagged recombinant proteins via multiple metal-coordination interactions. The soft and flexible structure of the polymer brushes was found beneficial for lowering the steric hindrance in protein binding. Taking advantage of the conformational changes of the polymer brushes at different temperatures, it is possible to modulate the protein binding on the nanocomposite by adjusting the environmental temperature. In general, the iminodiacetate-rich core-brush nano adsorbents are attractive for purifying histidine-tagged recombinant proteins practically. The synthetic approach reported here may be expanded to develop other advanced functional materials for applications in various biomedical fields ranging from biosensors to drug delivery.
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Affiliation(s)
- Lingdong Jiang
- Division of Pure and Applied Biochemistry, Department of Chemistry, Lund University, Box 124, 221 00 Lund, Sweden
| | - Lei Ye
- Division of Pure and Applied Biochemistry, Department of Chemistry, Lund University, Box 124, 221 00 Lund, Sweden.
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10
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Nagao M, Matsubara T, Hoshino Y, Sato T, Miura Y. Synthesis of Various Glycopolymers Bearing Sialyllactose and the Effect of Their Molecular Mobility on Interaction with the Influenza Virus. Biomacromolecules 2019; 20:2763-2769. [DOI: 10.1021/acs.biomac.9b00515] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Masanori Nagao
- Department of Chemical Engineering, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Teruhiko Matsubara
- Department of Biosciences and Informatics, Keio University, 3-14-1 Hiyoshi,
Kohoku-ku, Yokohama, Kanagawa 223-8522, Japan
| | - Yu Hoshino
- Department of Chemical Engineering, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Toshinori Sato
- Department of Biosciences and Informatics, Keio University, 3-14-1 Hiyoshi,
Kohoku-ku, Yokohama, Kanagawa 223-8522, Japan
| | - Yoshiko Miura
- Department of Chemical Engineering, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
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11
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Okishima A, Koide H, Hoshino Y, Egami H, Hamashima Y, Oku N, Asai T. Design of Synthetic Polymer Nanoparticles Specifically Capturing Indole, a Small Toxic Molecule. Biomacromolecules 2019; 20:1644-1654. [PMID: 30848887 DOI: 10.1021/acs.biomac.8b01820] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Synthetic polymers are of interest as stable and cost-effective biomolecule-affinity reagents, since these polymers interact with target biomolecules both in vitro and in the bloodstream. However, little has been reported about orally administered polymers capable of capturing a target molecule and inhibiting its intestinal absorption. Here, we describe the design of synthetic polymer nanoparticles (NPs) specifically capturing indole, a major factor exacerbating chronic kidney disease, in the intestine. N-isopropylacrylamide-based NPs were prepared with various hydrophobic monomers. The amounts of indole captured by NPs depended on the structures and feed ratios of the hydrophobic monomers and the polymer density but not on the particle size. The combination of hydrophobic and quadrupole interaction was effective to enhance the affinity and specificity of NPs for indole. The optimized NPs specifically inhibited intestinal absorption of orally administered indole in mice. These results showed the potential of synthetic polymer NPs for inhibiting the intestinal absorption of a target molecule.
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Affiliation(s)
- Anna Okishima
- Department of Medical Biochemistry, Graduate School of Pharmaceutical Sciences , University of Shizuoka , 52-1 Yada, Suruga-ku , Shizuoka , Shizuoka 422-8526 , Japan
| | - Hiroyuki Koide
- Department of Medical Biochemistry, Graduate School of Pharmaceutical Sciences , University of Shizuoka , 52-1 Yada, Suruga-ku , Shizuoka , Shizuoka 422-8526 , Japan
| | - Yu Hoshino
- Department of Chemical Engineering , Kyushu University , 744 Motooka , Fukuoka 819-0395 , Japan
| | - Hiromichi Egami
- Department of Synthetic Organic Chemistry, Graduate School of Pharmaceutical Sciences , University of Shizuoka , 52-1 Yada, Suruga-ku , Shizuoka , Shizuoka 422-8526 , Japan
| | - Yoshitaka Hamashima
- Department of Synthetic Organic Chemistry, Graduate School of Pharmaceutical Sciences , University of Shizuoka , 52-1 Yada, Suruga-ku , Shizuoka , Shizuoka 422-8526 , Japan
| | - Naoto Oku
- Department of Medical Biochemistry, Graduate School of Pharmaceutical Sciences , University of Shizuoka , 52-1 Yada, Suruga-ku , Shizuoka , Shizuoka 422-8526 , Japan.,Faculty of Pharma-Science , Teikyo University , 2-11-1 Kaga, Itabashi-ku , Tokyo 173-8605 , Japan
| | - Tomohiro Asai
- Department of Medical Biochemistry, Graduate School of Pharmaceutical Sciences , University of Shizuoka , 52-1 Yada, Suruga-ku , Shizuoka , Shizuoka 422-8526 , Japan
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12
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13
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Wang M, Wu B, Shah SN, Lu P, Lu Q. Polyquaternium-mediated delivery of morpholino oligonucleotides for exon-skipping in vitro and in mdx mice. Drug Deliv 2017; 24:952-961. [PMID: 28633548 PMCID: PMC8241187 DOI: 10.1080/10717544.2017.1337827] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2017] [Revised: 05/30/2017] [Accepted: 05/30/2017] [Indexed: 12/13/2022] Open
Abstract
Antisense oligonucleotide therapy for Duchenne muscular dystrophy has shown great potential in preclinical and clinical trials, but its therapeutic applications are still limited due to inefficient delivery. In this study, we investigated a few polyquaterniums (PQs) with different size and composition for their potential to improve delivery performance of an antisense phosphorodiamidate morpholino oligomer (PMO) both in vitro and in vivo. The results showed that LuviquatTM series, especially PQ-1 and PQ-3, promoted the exon-skipping efficiency comparable to Endoporter-mediated PMO delivery in vitro. Significant enhancement in skipping dystrophin exon 23 has also been achieved with PQ-3 up to seven-fold when compared to PMO alone in mdx mice. Cytotoxicity of the PQs was lower than Endoporter and PEI 25 K in vitro and muscle damage not clearly detected in vivo under the tested concentrations. These results together demonstrate that the optimization of PQ in molecular size, composition and distribution of positive charges is the key factor to achieve enhanced PMO exon-skipping efficiency. The higher efficiency and lower toxicity endow polyquaternium series as AO delivery enhancing agents for treating muscular dystrophy and other diseases.
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Affiliation(s)
- Mingxing Wang
- McColl-Lockwood Laboratory for Muscular Dystrophy Research, Cannon Research Center, Carolinas Medical Center, Charlotte, NC, United States
| | - Bo Wu
- McColl-Lockwood Laboratory for Muscular Dystrophy Research, Cannon Research Center, Carolinas Medical Center, Charlotte, NC, United States
| | - Sapana N Shah
- McColl-Lockwood Laboratory for Muscular Dystrophy Research, Cannon Research Center, Carolinas Medical Center, Charlotte, NC, United States
| | - Peijuan Lu
- McColl-Lockwood Laboratory for Muscular Dystrophy Research, Cannon Research Center, Carolinas Medical Center, Charlotte, NC, United States
| | - Qilong Lu
- McColl-Lockwood Laboratory for Muscular Dystrophy Research, Cannon Research Center, Carolinas Medical Center, Charlotte, NC, United States
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14
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Seto H, Imai K, Hoshino Y, Miura Y. Polymer microgel particles as basic catalysts for Knoevenagel condensation in water. Polym J 2016. [DOI: 10.1038/pj.2016.44] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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15
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Wang M, Wu B, Tucker JD, Lu P, Lu Q. Cationic polyelectrolyte-mediated delivery of antisense morpholino oligonucleotides for exon-skipping in vitro and in mdx mice. Int J Nanomedicine 2015; 10:5635-46. [PMID: 26366082 PMCID: PMC4562748 DOI: 10.2147/ijn.s89910] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023] Open
Abstract
In this study, we investigated a series of cationic polyelectrolytes (PEs) with different size and composition for their potential to improve delivery of an antisense phosphorodiamidate morpholino oligomer (PMO) both in vitro and in vivo. The results showed that the poly(diallyldimethylammonium chloride) (PDDAC) polymer series, especially PE-3 and PE-4, improves the delivery efficiency of PMO, comparable with Endoporter-mediated PMO delivery in vitro. The enhanced PMO delivery and targeting to dystrophin exon 23 was further observed in mdx mice, up to fourfold with the PE-4, compared with PMO alone. The cytotoxicity of the PEs was lower than that of Endoporter and polyethylenimine 25,000 Da in vitro, and was not clearly detected in muscle in vivo under the tested concentrations. Together, these results demonstrate that optimization of PE molecular size, composition, and distribution of cationic charge are key factors to achieve enhanced PMO exon-skipping efficiency. The increased efficiency and lower toxicity show this PDDAC series to be capable gene/antisense oligonucleotide delivery-enhancing agents for treating muscular dystrophy and other diseases.
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Affiliation(s)
- Mingxing Wang
- Department of Neurology, McColl-Lockwood Laboratory for Muscular Dystrophy Research, Cannon Research Center, Carolinas Medical Center, Charlotte, NC, USA
| | - Bo Wu
- Department of Neurology, McColl-Lockwood Laboratory for Muscular Dystrophy Research, Cannon Research Center, Carolinas Medical Center, Charlotte, NC, USA
| | - Jason D Tucker
- Department of Neurology, McColl-Lockwood Laboratory for Muscular Dystrophy Research, Cannon Research Center, Carolinas Medical Center, Charlotte, NC, USA
| | - Peijuan Lu
- Department of Neurology, McColl-Lockwood Laboratory for Muscular Dystrophy Research, Cannon Research Center, Carolinas Medical Center, Charlotte, NC, USA
| | - Qilong Lu
- Department of Neurology, McColl-Lockwood Laboratory for Muscular Dystrophy Research, Cannon Research Center, Carolinas Medical Center, Charlotte, NC, USA
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Graff RW, Shi Y, Wang X, Gao H. Comparison of Loading Efficiency between Hyperbranched Polymers and Cross-Linked Nanogels at Various Branching Densities. Macromol Rapid Commun 2015; 36:2076-82. [DOI: 10.1002/marc.201500388] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2015] [Revised: 08/09/2015] [Indexed: 11/11/2022]
Affiliation(s)
- Robert W. Graff
- Department of Chemistry and Biochemistry; University of Notre Dame; Notre Dame, IN USA
| | - Yi Shi
- Department of Chemistry and Biochemistry; University of Notre Dame; Notre Dame, IN USA
| | - Xiaofeng Wang
- Department of Chemistry and Biochemistry; University of Notre Dame; Notre Dame, IN USA
| | - Haifeng Gao
- Department of Chemistry and Biochemistry; University of Notre Dame; Notre Dame, IN USA
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17
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Yue M, Hoshino Y, Miura Y. Design rationale of thermally responsive microgel particle films that reversibly absorb large amounts of CO 2: fine tuning the p Ka of ammonium ions in the particles. Chem Sci 2015; 6:6112-6123. [PMID: 30090226 PMCID: PMC6054111 DOI: 10.1039/c5sc01978h] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2015] [Accepted: 07/27/2015] [Indexed: 11/26/2022] Open
Abstract
Fine-tuning of pKa value of ammonium ions at both CO2 capture and release temperature is found to be crucial for the design of the thermally responsive gel particle films that reversibly capture large amounts of CO2.
Herein we revealed the design rationale of thermally responsive gel particle (GP) films that reversibly capture and release large amounts of CO2 over a narrow temperature range (30–75 °C). The pKa value of ammonium ions in the GPs at both the CO2 capture temperature (30 °C) and release temperature (75 °C) is found to be the primary factor responsible for the stoichiometry of reversible CO2 capture by the amines in the GP films. The pKa values can be tuned by the properties of GPs such as volume phase transition temperature (VPTT), size, swelling ratio, and the imprinted microenvironment surrounding the amines. The optimal GP obtained according to the design rationale showed high capture capacity (68 mL CO2 per g dry GPs, 3.0 mmol CO2 per g dry GPs), although the regeneration temperature was as low as 75 °C. We anticipate that GP films that reversibly capture other acidic and basic gases in large amounts can also be achieved by the pKa tuning procedures.
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Affiliation(s)
- Mengchen Yue
- Department of Chemical Engineering , Kyushu University , 744 Motooka, Nishi-ku , Fukuoka 819-0395 , Japan .
| | - Yu Hoshino
- Department of Chemical Engineering , Kyushu University , 744 Motooka, Nishi-ku , Fukuoka 819-0395 , Japan .
| | - Yoshiko Miura
- Department of Chemical Engineering , Kyushu University , 744 Motooka, Nishi-ku , Fukuoka 819-0395 , Japan .
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18
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Poma A, Brahmbhatt H, Pendergraff HM, Watts JK, Turner NW. Generation of novel hybrid aptamer-molecularly imprinted polymeric nanoparticles. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2015; 27:750-758. [PMID: 25413444 DOI: 10.1002/adma.201404235] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/12/2014] [Revised: 10/26/2014] [Indexed: 06/04/2023]
Abstract
A strategy to exploit aptamers as recognition elements of molecularly imprinted polymeric nanoparticles (AptaMIP NPs) is presented, via modification of the chemical structure of the DNA. It is demonstrated that the introduction of this modified "aptamer monomer" results in an increase of the affinity of the produced MIP NPs, without altering their physical properties such as size, shape, or dispersibility.
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Affiliation(s)
- Alessandro Poma
- Department of Life, Health and Chemical Sciences, The Open University, Milton Keynes, MK7 6AA, UK
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19
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Wada Y, Lee H, Hoshino Y, Kotani S, Shea KJ, Miura Y. Design of multi-functional linear polymers that capture and neutralize a toxic peptide: a comparison with cross-linked nanoparticles. J Mater Chem B 2015; 3:1706-1711. [DOI: 10.1039/c4tb01967a] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In this paper, a library of multi-functional linear poly-N-isopropylacrylamide (pNIPAm) polymers having a range of molecular weights and functional groups were synthesized and their interaction with the hemolytic peptide, melittin, was examined.
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Affiliation(s)
- Yusuke Wada
- Department of Chemical Engineering
- Kyushu University
- Fukuoka 819-0395
- Japan
| | - Haejoo Lee
- Department of Chemical Engineering
- Kyushu University
- Fukuoka 819-0395
- Japan
| | - Yu Hoshino
- Department of Chemical Engineering
- Kyushu University
- Fukuoka 819-0395
- Japan
| | - Shunsuke Kotani
- Priority Organization for Innovation and Excellence
- Kumamoto University
- Kumamoto 862-0973
- Japan
| | | | - Yoshiko Miura
- Department of Chemical Engineering
- Kyushu University
- Fukuoka 819-0395
- Japan
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20
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Preparation of nanogel-immobilized porous gel beads for affinity separation of proteins: fusion of nano and micro gel materials. Polym J 2014. [DOI: 10.1038/pj.2014.101] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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21
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Interaction between synthetic particles and biomacromolecules: fundamental study of nonspecific interaction and design of nanoparticles that recognize target molecules. Polym J 2014. [DOI: 10.1038/pj.2014.33] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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22
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Campbell AS, Dong C, Meng F, Hardinger J, Perhinschi G, Wu N, Dinu CZ. Enzyme catalytic efficiency: a function of bio-nano interface reactions. ACS APPLIED MATERIALS & INTERFACES 2014; 6:5393-403. [PMID: 24666280 DOI: 10.1021/am500773g] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Biocatalyst immobilization onto carbon-based nanosupports has been implemented in a variety of applications ranging from biosensing to biotransformation and from decontamination to energy storage. However, retaining enzyme functionality at carbon-based nanosupports was challenged by the non-specific attachment of the enzyme as well as by the enzyme-enzyme interactions at this interface shown to lead to loss of enzyme activity. Herein, we present a systematic study of the interplay reactions that take place upon immobilization of three pure enzymes namely soybean peroxidase, chloroperoxidase, and glucose oxidase at carbon-based nanosupport interfaces. The immobilization conditions involved both single and multipoint single-type enzyme attachment onto single and multi-walled carbon nanotubes and graphene oxide nanomaterials with properties determined by Fourier transform infrared spectroscopy (FTIR), energy dispersive X-ray analysis (EDX), scanning electron microscopy (SEM), and atomic force microscopy (AFM). Our analysis showed that the different surface properties of the enzymes as determined by their molecular mapping and size work synergistically with the carbon-based nanosupports physico-chemical properties (i.e., surface chemistry, charge and aspect ratios) to influence enzyme catalytic behavior and activity at nanointerfaces. Knowledge gained from these studies can be used to optimize enzyme-nanosupport symbiotic reactions to provide robust enzyme-based systems with optimum functionality to be used for fermentation, biosensors, or biofuel applications.
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Affiliation(s)
- Alan S Campbell
- Department of Chemical Engineering and ‡Department of Mechanical and Aerospace Engineering, West Virginia University , Morgantown, West Virginia 26506, United States
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