1
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Su Z, Chen T, Liu X, Kang X. Size-tunable transmembrane nanopores assembled from decomposable molecular templates. Biosens Bioelectron 2024; 267:116780. [PMID: 39277918 DOI: 10.1016/j.bios.2024.116780] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2024] [Revised: 09/03/2024] [Accepted: 09/10/2024] [Indexed: 09/17/2024]
Abstract
Transmembrane nanopores, as key elements in molecular transport and single-molecule sensors, are assembled naturally from multiple monomers in the presence of lipid bilayers. The nanopore size, especially the precise diameter of the inner space, determines its sensing targets and further biological application. In this paper, we introduce a template molecule-aided assembly strategy for constructing size-tunable transmembrane nanopores. Inspired by the barrel-like structure, similar to many transmembrane proteins, cyclodextrin molecules of different sizes are utilized as templates and modulators to assemble the α-helical barreled peptide of polysaccharide transporters (Wza). The functional nanopores assembled by this strategy possess high biological and chemical activity and can be inserted into lipid bilayers, forming stable single channels for single-molecule sensing. After enzyme digestion, the cyclodextrins on protein nanopores can be degraded, and the remaining nontemplate transmembrane protein nanopores can also preserve the integrity of their structure and function. The template molecule-aided assembly strategy employed a simple and convenient method for fully artificially synthesizing transmembrane protein nanopores; the pore size is completely dependent on the size of the template molecule and controllable, ranging from 1.1 to 1.8 nm. Furthermore, by chemically synthesized peptides and modifications, the pore function is easily modulated and does not involve the cumbersome genetic mutations of other biological techniques.
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Affiliation(s)
- Zhuoqun Su
- College of Chemistry & Materials Science, Key Laboratory of Synthetic and Natural Functional Molecular Chemistry, Northwest University, Xi'an, 710127, China; School of Food Science and Engineering, Shaanxi University of Science and Technology, Xi'an, 710021, China
| | - Tingting Chen
- College of Chemistry & Materials Science, Key Laboratory of Synthetic and Natural Functional Molecular Chemistry, Northwest University, Xi'an, 710127, China
| | - Xingtong Liu
- College of Chemistry & Materials Science, Key Laboratory of Synthetic and Natural Functional Molecular Chemistry, Northwest University, Xi'an, 710127, China
| | - Xiaofeng Kang
- College of Chemistry & Materials Science, Key Laboratory of Synthetic and Natural Functional Molecular Chemistry, Northwest University, Xi'an, 710127, China.
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2
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Augis L, Nerbø Reiten I, Førde JL, Casas-Solvas JM, Sizun C, Bizien T, Rajkovic I, Larquet E, Michelet A, Collot M, Lesieur S, Herfindal L, Legrand FX. Development of nanoparticles based on amphiphilic cyclodextrins for the delivery of active substances. Int J Pharm 2024; 651:123723. [PMID: 38110013 DOI: 10.1016/j.ijpharm.2023.123723] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2023] [Revised: 12/15/2023] [Accepted: 12/16/2023] [Indexed: 12/20/2023]
Abstract
Although amphiphilic cyclodextrin derivatives (ACDs) serve as valuable building blocks for nanomedicine formulations, their widespread production still encounters various challenges, limiting large-scale manufacturing. This work focuses on a robust alternative pathway using mineral base catalysis to transesterify β-cyclodextrin with long-chain vinyl esters, yielding ACD with modular and controlled hydrocarbon chain grafting. ACDs with a wide range of degrees of substitution (DS) were reliably synthesized, as indicated by extensive physicochemical characterization, including MALDI-TOF mass spectrometry. The influence of various factors, including the type of catalyst and the length of the hydrocarbon moiety of the vinyl ester, was studied in detail. ACDs were assessed for their ability to form colloidal suspensions by nanoprecipitation, with or without PEGylated phospholipid. Small-angle X-ray scattering and cryo-electron microscopy revealed the formation of nanoparticles with distinct ultrastructures depending on the DS: an onion-like structure for low and very high DS, and reversed hexagonal organization for DS between 4.5 and 6.1. We confirmed the furtivity of the PEGylated versions of the nanoparticles through complement activation experiments and that they were well tolerated in-vivo on a zebrafish larvae model after intravenous injection. Furthermore, a biodistribution experiment showed that the nanoparticles left the bloodstream within 10 h after injection and were phagocytosed by macrophages.
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Affiliation(s)
- Luc Augis
- Université Paris-Saclay, CNRS, Institut Galien Paris-Saclay, 91400 Orsay, France
| | - Ingeborg Nerbø Reiten
- Centre for Pharmacy, Department of Clinical Science, University of Bergen, Bergen, Norway
| | - Jan-Lukas Førde
- Centre for Pharmacy, Department of Clinical Science, University of Bergen, Bergen, Norway; Department of Internal Medicine, Haukeland University Hospital, 5021 Bergen, Norway
| | - Juan M Casas-Solvas
- Department of Chemistry and Physics, University of Almería, Ctra de Sacramento s/n, E-04120 Almería, Spain
| | - Christina Sizun
- Université Paris-Saclay, CNRS, Institut de Chimie des Substances Naturelles, UPR 2301, 91198 Gif-sur-Yvette, France
| | - Thomas Bizien
- Université Paris-Saclay, Synchrotron Soleil, 91190 Saint-Aubin, France
| | - Ivan Rajkovic
- SSRL, SLAC National Accelerator Lab, Menlo Park, CA, USA
| | - Eric Larquet
- Laboratoire de Physique de la Matière Condensée (PMC), CNRS, Ecole Polytechnique, Institut Polytechnique de Paris, 91120 Palaiseau, France
| | - Alexandre Michelet
- Applications Development Lab France, PerkinElmer, Villebon-sur-Yvette, France
| | - Mayeul Collot
- Faculté de Pharmacie, Laboratoire de Bioimagerie et Pathologies, UMR 7021 CNRS, Illkirch, France
| | - Sylviane Lesieur
- Université Paris-Saclay, CNRS, Institut Galien Paris-Saclay, 91400 Orsay, France
| | - Lars Herfindal
- Centre for Pharmacy, Department of Clinical Science, University of Bergen, Bergen, Norway
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3
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Liang B, Miao Y, Zhao L, Fang L, Deng D. A dandelion-like nanomedicine via hierarchical self-assembly for synergistic chemotherapy and photo-dynamic cancer therapy. NANOMEDICINE : NANOTECHNOLOGY, BIOLOGY, AND MEDICINE 2023; 49:102660. [PMID: 36746273 DOI: 10.1016/j.nano.2023.102660] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/04/2022] [Revised: 01/09/2023] [Accepted: 01/19/2023] [Indexed: 02/05/2023]
Abstract
The synergistic effect of chemotherapy and photo-dynamic therapy (PDT) is an effective way to improve the efficiency of tumor treatment. However, most synergistic therapeutic drugs have poor water solubility and stability, so it is difficult to achieve high therapeutic effects while avoiding the severe side effects. Herein, a unique dandelion-like nanomedicine (named as cRGDfk-CCPT-mCe6) was successfully synthesized using Ce6-loaded amphiphilic β-cyclodextrins (β-CD) doped lipid-based vesicles as the core (receptacle) and β-CD modified camptothecin (CPT) pro-drug as the flyable dandelion seeds. The β-CD modified CPT pro-drug was introduced into the core vesicles in succession via host-guest interaction between inter-molecular β-CD and CPT, and cRGDfk peptides were further introduced as the outermost layer (stigma) to enhance the internalization into cancer cells. CPT interacted with β-CD through glutathione (GSH)-cleavable disulfide bonds, which led to drug release in glutathione-rich cancer cells, just as spread of dandelion seeds in the wind. GSH consumption further disrupted the intracellular redox homeostasis of cancer cells through combined action of Ce6 with light irradiation and the synergistic anti-tumor effect was thus achieved, resulting in apoptosis of cancer cells. Therefore, the nanomedicine provides a facile and versatile anti-tumor strategy, as well as a persistent anti-cancer effects.
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Affiliation(s)
- Binbin Liang
- Department of Pharmaceutical Engineering, School of Engineering, China Pharmaceutical University, Nanjing 211198, PR China
| | - Yuhang Miao
- Department of Pharmaceutical Engineering, School of Engineering, China Pharmaceutical University, Nanjing 211198, PR China
| | - Liying Zhao
- Department of Pharmaceutical Engineering, School of Engineering, China Pharmaceutical University, Nanjing 211198, PR China
| | - Lan Fang
- Department of Pharmaceutical Engineering, School of Engineering, China Pharmaceutical University, Nanjing 211198, PR China
| | - Dawei Deng
- Department of Pharmaceutical Engineering, School of Engineering, China Pharmaceutical University, Nanjing 211198, PR China; Department of Biomedical Engineering, School of Engineering, China Pharmaceutical University, Nanjing 211198, PR China.
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4
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Putaux JL, Lancelon-Pin C, Choisnard L, Gèze A, Wouessidjewe D. Topological defects in polycrystalline hexosomes from β-cyclodextrin fatty esters. SOFT MATTER 2022; 18:2028-2038. [PMID: 35191906 DOI: 10.1039/d1sm01831k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Colloidal nanoparticles were prepared by aqueous self-assembly of amphiphilic β-cyclodextrins (βCDs) acylated on their secondary face with C14 chains to a total degree of substitution of 7.0, via a thermolysin-catalyzed transesterification process. The small-angle X-ray scattering pattern of the nanoparticles was consistent with a reverse hexagonal organization. Cryo-transmission electron microscopy images revealed particles with spectacular tortuous shapes and consisting of misoriented domains with a regular columnar hexagonal structure, separated by sharp interfaces. Edge dislocations as well as a variety of stepped tilt grain boundaries (GBs) composed of symmetrical and asymmetrical sections, together with one twist GB, were identified from axial views of the columnar organization. The tilt GB structure was analyzed using the concepts of coincidence site lattice and structural units developed to describe the atomic structure of interfaces in various types of polycrystals. The tilt GBs were described using sequences of βCD-C14 columns that differed by the number of neighboring columns (5, 6 or 7) and exhibiting distinctive contrasts. To our knowledge, this is the first time that these types of topological defects are described at the nanometric scale by direct observation of colloidal polycrystalline hexosomes of self-organized amphiphiles.
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Affiliation(s)
- Jean-Luc Putaux
- Univ. Grenoble Alpes, CNRS, CERMAV, F-38000 Grenoble, France.
| | | | - Luc Choisnard
- Univ. Grenoble Alpes, CNRS, DPM, F-38000 Grenoble, France
| | - Annabelle Gèze
- Univ. Grenoble Alpes, CNRS, DPM, F-38000 Grenoble, France
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5
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Paul B, Mukherjee A, Bhuyan D, Guha S. Construction of unsymmetrical b
is‐urea
macrocyclic host for neutral molecule and chloride‐ion binding. J Heterocycl Chem 2021. [DOI: 10.1002/jhet.4329] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Biprajit Paul
- Department of Chemistry, Organic Chemistry Section Jadavpur University Kolkata India
| | - Ayan Mukherjee
- Department of Chemistry, Organic Chemistry Section Jadavpur University Kolkata India
| | - Deepak Bhuyan
- Department of Chemistry, Organic Chemistry Section Jadavpur University Kolkata India
| | - Samit Guha
- Department of Chemistry, Organic Chemistry Section Jadavpur University Kolkata India
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6
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The Elucidation of the Molecular Mechanism of the Extrusion Process. MATERIALS 2021; 14:ma14154278. [PMID: 34361472 PMCID: PMC8348501 DOI: 10.3390/ma14154278] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/11/2021] [Revised: 07/27/2021] [Accepted: 07/27/2021] [Indexed: 02/02/2023]
Abstract
Extrusion is a popular method for producing homogenous population of unilamellar liposomes. The technique relies on forcing a lipid suspension through cylindrical pores in a polycarbonate membrane. The quantification of the extrusion and/or recalibration processes make possible the acquisition of experimental data, which can be correlated with the mechanical properties of the lipid bilayer. In this work, the force needed for the extrusion process was correlated with the mechanical properties of a lipid bilayer derived from other experiments. Measurements were performed using a home-made dedicated device capable of maintaining a stable volumetric flux of a liposome suspension through well-defined pores and to continuously measure the extrusion force. Based on the obtained results, the correlation between the lipid bilayer bending rigidity and extrusion force was derived. Specifically, it was found that the bending rigidity of liposomes formed from well-defined lipid mixtures agrees with data obtained by others using flicker-noise spectroscopy or micromanipulation. The other issue addressed in the presented studies was the identification of molecular mechanisms leading to the formation of unilamellar vesicles in the extrusion process. Finally, it was demonstrated that during the extrusion, lipids are not exchanged between vesicles, i.e., vesicles can divide but no membrane fusion or lipid exchange between bilayers was detected.
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7
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Nolay F, Sevin E, Létévé M, Bil A, Gosselet F, El Kirat K, Djedaini-Pilard F, Morandat S, Fenart L, Przybylski C, Bonnet V. First step to the improvement of the blood brain barrier passage of atazanavir encapsulated in sustainable bioorganic vesicles. Int J Pharm 2020; 587:119604. [DOI: 10.1016/j.ijpharm.2020.119604] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Revised: 06/15/2020] [Accepted: 06/29/2020] [Indexed: 12/11/2022]
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8
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Cordaro A, Zagami R, Malanga M, Venkatesan JK, Alvarez-Lorenzo C, Cucchiarini M, Piperno A, Mazzaglia A. Cyclodextrin Cationic Polymer-Based Nanoassemblies to Manage Inflammation by Intra-Articular Delivery Strategies. NANOMATERIALS 2020; 10:nano10091712. [PMID: 32872542 PMCID: PMC7558260 DOI: 10.3390/nano10091712] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/20/2020] [Revised: 08/26/2020] [Accepted: 08/27/2020] [Indexed: 12/31/2022]
Abstract
Injectable nanobioplatforms capable of locally fighting the inflammation in osteoarticular diseases, by reducing the number of administrations and prolonging the therapeutic effect is highly challenging. β-Cyclodextrin cationic polymers are promising cartilage-penetrating candidates by intra-articular injection due to the high biocompatibility and ability to entrap multiple therapeutic and diagnostic agents, thus monitoring and mitigating inflammation. In this study, nanoassemblies based on poly-β-amino-cyclodextrin (PolyCD) loaded with the non-steroidal anti-inflammatory drug diclofenac (DCF) and linked by supramolecular interactions with a fluorescent probe (adamantanyl-Rhodamine conjugate, Ada-Rhod) were developed to manage inflammation in osteoarticular diseases. PolyCD@Ada-Rhod/DCF supramolecular nanoassemblies were characterized by complementary spectroscopic techniques including UV-Vis, steady-state and time-resolved fluorescence, DLS and ζ-potential measurement. Stability and DCF release kinetics were investigated in medium mimicking the physiological conditions to ensure control over time and efficacy. Biological experiments evidenced the efficient cellular internalization of PolyCD@Ada-Rhod/DCF (within two hours) without significant cytotoxicity in primary human bone marrow-derived mesenchymal stromal cells (hMSCs). Finally, polyCD@Ada-Rhod/DCF significantly suppressed IL-1β production in hMSCs, revealing the anti-inflammatory properties of these nanoassemblies. With these premises, this study might open novel routes to exploit original CD-based nanobiomaterials for the treatment of osteoarticular diseases.
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Affiliation(s)
- Annalaura Cordaro
- CNR-ISMN, Istituto per lo Studio dei Materiali Nanostrutturati, V. le F. Stagno d’Alcontres 31, 98166 Messina, Italy; (A.C.); (R.Z.)
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, Università di Messina, V. le F. Stagno d’Alcontres 31, 98166 Messina, Italy
| | - Roberto Zagami
- CNR-ISMN, Istituto per lo Studio dei Materiali Nanostrutturati, V. le F. Stagno d’Alcontres 31, 98166 Messina, Italy; (A.C.); (R.Z.)
| | - Milo Malanga
- CycloLab, Illatos út 7, H-1097 Budapest, Hungary;
| | - Jagadeesh Kumar Venkatesan
- Center of Experimental Orthopaedics, Saarland University Medical Center, Kirrbergerstr. Bldg 37, D-66421 Homburg/Saar, Germany; (J.K.V.); (M.C.)
| | - Carmen Alvarez-Lorenzo
- Departamento de Farmacología, Farmacia y Tecnología Farmacéutica, I+DFarma (GI-1645), Facultad de Farmacia and Health Research Institute of Santiago de Compostela (IDIS), Universidade de Santiago de Compostela, 15872 Santiago de Compostela, Spain;
| | - Magali Cucchiarini
- Center of Experimental Orthopaedics, Saarland University Medical Center, Kirrbergerstr. Bldg 37, D-66421 Homburg/Saar, Germany; (J.K.V.); (M.C.)
| | - Anna Piperno
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, Università di Messina, V. le F. Stagno d’Alcontres 31, 98166 Messina, Italy
- Correspondence: (A.P.); (A.M.)
| | - Antonino Mazzaglia
- CNR-ISMN, Istituto per lo Studio dei Materiali Nanostrutturati, V. le F. Stagno d’Alcontres 31, 98166 Messina, Italy; (A.C.); (R.Z.)
- Correspondence: (A.P.); (A.M.)
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9
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de Oliveira JK, Ueda-Nakamura T, Corrêa AG, Petrilli R, Lopez RFV, Nakamura CV, Auzely-Velty R. Liposome-based nanocarrier loaded with a new quinoxaline derivative for the treatment of cutaneous leishmaniasis. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 110:110720. [PMID: 32204033 DOI: 10.1016/j.msec.2020.110720] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/23/2018] [Revised: 01/24/2020] [Accepted: 02/03/2020] [Indexed: 02/07/2023]
Abstract
The use of nanocarriers for drug delivery is a strategy aimed to improve therapeutic indices through changes in their pharmacokinetic and pharmacodynamic characteristics. Liposomes are well-investigated nanocarriers for drug delivery to macrophage-targeted therapy, the main hosts of intracellular pathogens of some infectious diseases, such as leishmaniasis. In this study, we developed hyaluronic acid (HA)-coated liposomes by different methods that can encapsulate a new quinoxaline derivative, the LSPN331, to increase its solubility and improve its bioavailability. The surface modification of liposomes and their physicochemical characteristics may depend on the coating method, which may be a critical parameter with regard to the route of administration of the antileishmanial drug. Liposomes with identical phospholipid composition containing the same drug were developed, and different biological responses were verified, and our hypothesis is that it is related to the type of modification of the surface. Different physicochemical characterization techniques (dynamic light scattering, transmission electron microscopy and UV-vis quantification of labeled-HA) were used to confirm the successful modification of liposomes as well as their stability upon storage. The encapsulation of LSPN331 was performed using HPLC method, and the entrapment efficiency (EE%) was satisfatory in all formulations, considering results of similar formulations in the literature. Furthermore, in vitro and in vivo studies were carried out to evaluate the efficacy against the parasite Leishmania amazonensis. The in vitro activity was maintained or even improved and HA-coated liposomes showed the ability to target to the site of action by the proposed routes of administration, topically and intravenously. Both formulations are promising for future tests of antileishmania activity in vivo.
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Affiliation(s)
| | - Tânia Ueda-Nakamura
- Programa de Pós Graduação em Ciências Farmacêuticas, Universidade Estadual de Maringá, Maringá, PR, Brazil
| | | | - Raquel Petrilli
- Faculdade de Ciências Farmacêuticas de Ribeirão Preto USP, Ribeirão Preto, SP, Brazil
| | | | - Celso Vataru Nakamura
- Programa de Pós Graduação em Ciências Farmacêuticas, Universidade Estadual de Maringá, Maringá, PR, Brazil.
| | - Rachel Auzely-Velty
- Centre de Recherches sur les Macromolécules Végétales, Cermav, Université Grenoble Alpes, Grenoble, France.
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10
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Musumeci T, Bonaccorso A, De Gaetano F, Larsen KL, Pignatello R, Mazzaglia A, Puglisi G, Ventura CA. A physico-chemical study on amphiphilic cyclodextrin/liposomes nanoassemblies with drug carrier potential. J Liposome Res 2019; 30:407-416. [DOI: 10.1080/08982104.2019.1682603] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- T. Musumeci
- Laboratory of Drug Delivery Technology – Department of Drug Sciences, University of Catania, Catania, Italy
| | - A. Bonaccorso
- Laboratory of Drug Delivery Technology – Department of Drug Sciences, University of Catania, Catania, Italy
| | - F. De Gaetano
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Messina, Italy
| | - K. L. Larsen
- Department of Chemistry, Biotechnology and Environmental Engineering, Aalborg University, Aalborg, Denmark
| | - R. Pignatello
- Laboratory of Drug Delivery Technology – Department of Drug Sciences, University of Catania, Catania, Italy
| | - A. Mazzaglia
- National Research Council, CNR-ISMN, c/o Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Messina, Italy
| | - G. Puglisi
- Laboratory of Drug Delivery Technology – Department of Drug Sciences, University of Catania, Catania, Italy
| | - C. A. Ventura
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Messina, Italy
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11
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de Vries WC, Niehues M, Wissing M, Würthwein T, Mäsing F, Fallnich C, Studer A, Ravoo BJ. Photochemical preparation of gold nanoparticle decorated cyclodextrin vesicles with tailored plasmonic properties. NANOSCALE 2019; 11:9384-9391. [PMID: 31042250 DOI: 10.1039/c9nr02363a] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
We report a photochemical strategy for the preparation of plasmonic vesicles by the in situ formation of gold nanoparticles at the surface of cyclodextrin host vesicle templates decorated with photoactive guest polymers. Upon irradiation with UV light, these carefully designed polymer shells undergo a Norrish type I reaction to generate reducing radicals for the in situ reduction of gold salts and simultaneously provide a stabilizing matrix allowing for a dense decoration with discrete gold seeds. In a highly controlled growth procedure the gold particle size can be adjusted between 3 and 28 nm resulting in an increasing interparticle plasmonic coupling as revealed by a pronounced redshift of the surface plasmon resonance (SPR) band and an enhanced absorption at wavelengths above 600 nm. This unique combination of cyclodextrin vesicles capable of specifically recognizing guest molecules with a plasmonic particle shell displaying multiple interparticle gaps acting as electromagnetic hotspots shows great potential for surface-enhanced Raman scattering (SERS) applications.
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Affiliation(s)
- Wilke C de Vries
- Organic Chemistry Institute and Center for Soft Nanoscience, Westfälische Wilhelms-Universität Münster, Corrensstr. 40, D-48149 Münster, Germany.
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12
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Štimac A, Tokić M, Ljubetič A, Vuletić T, Šekutor M, PoŽar J, Leko K, HanŽevački M, Frkanec L, Frkanec R. Functional self-assembled nanovesicles based on β-cyclodextrin, liposomes and adamantyl guanidines as potential nonviral gene delivery vectors. Org Biomol Chem 2019; 17:4640-4651. [PMID: 31020307 DOI: 10.1039/c9ob00488b] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
Multicomponent self-assembled supramolecular nanovesicles based on an amphiphilic derivative of β-cyclodextrin and phosphatidylcholine liposomes (PC-liposomes) functionalized with four structurally different adamantyl guanidines were prepared and characterized. Incorporation efficiency of the examined adamantyl guanidines as well as size and surface charge of the prepared supramolecular nanovesicles was determined. Changes in the surface charge of the prepared nanovesicles confirmed that guanidinium groups were exposed on the surface. ITC and 1H NMR spectroscopy complemented by molecular dynamics (MD) simulations were used to elucidate the structural data and stability of the inclusion complexes of β-cyclodextrin and adamantyl guanidines (AG1-5). The results are consistent and point to a significant contribution of the guanylhydrazone residue to the complexation process for AG1 and AG2 with β-cyclodextrin. In order to evaluate the potential of the self-assembled supramolecular nanomaterial as a nonviral gene delivery vector, fluorescence correlation spectroscopy was used. It showed that the prepared nanovesicles functionalized with adamantyl guanidines AG1-4 effectively recognize and bind the fluorescently labelled DNA. Furthermore, gel electrophoretic assay confirmed the formation of nanoplexes of functionalized nanovesicles and plasmid DNA. These findings together suggest that the designed supramolecular nanovesicles could be successfully applied as nonviral gene delivery vectors.
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Affiliation(s)
- Adela Štimac
- Centre for Research and Knowledge Transfer in Biotechnology, University of Zagreb, Rockefellerova 10, 10 000 Zagreb, Croatia.
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13
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Wang Y, Wang C, Long R, Cao Y, Fan D, Cen M, Cao L, Chen Y, Yao Y. Synthesis and controllable self-assembly of 3D amphiphilic organoplatinum(ii) metallacages in water. Chem Commun (Camb) 2019; 55:5167-5170. [DOI: 10.1039/c9cc02173f] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
A 3D amphiphilic supramolecular coordination metallacycle M1 was designed and fabricated using a new method called “coordination driven self-assembly”. It can self-assemble into well-defined vesicles and further assemble into nanofibres and hybrid vesicles. Importantly, the hybrid vesicles can be applied in photocatalysis in water.
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Affiliation(s)
- Yang Wang
- College of Chemistry and Chemical Engineer
- Nantong University
- Nantong
- P. R. China
| | - Chenwei Wang
- College of Chemistry and Chemical Engineer
- Nantong University
- Nantong
- P. R. China
| | - Renhua Long
- College of Chemistry and Chemical Engineer
- Nantong University
- Nantong
- P. R. China
| | - Yufeng Cao
- College of Chemistry and Chemical Engineer
- Nantong University
- Nantong
- P. R. China
| | - Dongli Fan
- College of Chemistry and Chemical Engineer
- Nantong University
- Nantong
- P. R. China
| | - Moupan Cen
- College of Chemistry and Chemical Engineer
- Nantong University
- Nantong
- P. R. China
| | - Leyu Cao
- College of Chemistry and Chemical Engineer
- Nantong University
- Nantong
- P. R. China
| | - Yanmei Chen
- College of Chemistry and Chemical Engineer
- Nantong University
- Nantong
- P. R. China
| | - Yong Yao
- College of Chemistry and Chemical Engineer
- Nantong University
- Nantong
- P. R. China
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14
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Drücker P, Iacovache I, Bachler S, Zuber B, Babiychuk EB, Dittrich PS, Draeger A. Membrane deformation and layer-by-layer peeling of giant vesicles induced by the pore-forming toxin pneumolysin. Biomater Sci 2019; 7:3693-3705. [DOI: 10.1039/c9bm00134d] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Membranes under attack by the pore-forming toxin pneumolysin reveal a hitherto unknown layer-by-layer peeling mechanism and disclose the multilamellar structure.
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Affiliation(s)
- Patrick Drücker
- Department of Biosystems Science and Engineering
- ETH Zurich
- 4058 Basel
- Switzerland
- Department of Cell Biology
| | - Ioan Iacovache
- Laboratory of Experimental Morphology
- Institute of Anatomy
- University of Bern
- 3000 Bern 9
- Switzerland
| | - Simon Bachler
- Department of Biosystems Science and Engineering
- ETH Zurich
- 4058 Basel
- Switzerland
| | - Benoît Zuber
- Laboratory of Experimental Morphology
- Institute of Anatomy
- University of Bern
- 3000 Bern 9
- Switzerland
| | - Eduard B. Babiychuk
- Department of Cell Biology
- Institute of Anatomy
- University of Bern
- 3000 Bern 9
- Switzerland
| | - Petra S. Dittrich
- Department of Biosystems Science and Engineering
- ETH Zurich
- 4058 Basel
- Switzerland
| | - Annette Draeger
- Department of Cell Biology
- Institute of Anatomy
- University of Bern
- 3000 Bern 9
- Switzerland
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15
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Kauscher U, Holme MN, Björnmalm M, Stevens MM. Physical stimuli-responsive vesicles in drug delivery: Beyond liposomes and polymersomes. Adv Drug Deliv Rev 2019; 138:259-275. [PMID: 30947810 PMCID: PMC7180078 DOI: 10.1016/j.addr.2018.10.012] [Citation(s) in RCA: 118] [Impact Index Per Article: 23.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2018] [Revised: 09/30/2018] [Accepted: 10/22/2018] [Indexed: 12/11/2022]
Abstract
Over the past few decades, a range of vesicle-based drug delivery systems have entered clinical practice and several others are in various stages of clinical translation. While most of these vesicle constructs are lipid-based (liposomes), or polymer-based (polymersomes), recently new classes of vesicles have emerged that defy easy classification. Examples include assemblies with small molecule amphiphiles, biologically derived membranes, hybrid vesicles with two or more classes of amphiphiles, or more complex hierarchical structures such as vesicles incorporating gas bubbles or nanoparticulates in the lumen or membrane. In this review, we explore these recent advances and emerging trends at the edge and just beyond the research fields of conventional liposomes and polymersomes. A focus of this review is the distinct behaviors observed for these classes of vesicles when exposed to physical stimuli - such as ultrasound, heat, light and mechanical triggers - and we discuss the resulting potential for new types of drug delivery, with a special emphasis on current challenges and opportunities.
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Affiliation(s)
- Ulrike Kauscher
- Department of Materials, Imperial College London, London SW7 2AZ, UK; Department of Bioengineering, Imperial College London, London SW7 2AZ, UK; Institute of Biomedical Engineering, Imperial College London, London SW7 2AZ, UK
| | - Margaret N Holme
- Department of Medical Biochemistry and Biophysics, Karolinska Institutet, Stockholm SE-171 77, Sweden
| | - Mattias Björnmalm
- Department of Materials, Imperial College London, London SW7 2AZ, UK; Department of Bioengineering, Imperial College London, London SW7 2AZ, UK; Institute of Biomedical Engineering, Imperial College London, London SW7 2AZ, UK
| | - Molly M Stevens
- Department of Materials, Imperial College London, London SW7 2AZ, UK; Department of Bioengineering, Imperial College London, London SW7 2AZ, UK; Institute of Biomedical Engineering, Imperial College London, London SW7 2AZ, UK; Department of Medical Biochemistry and Biophysics, Karolinska Institutet, Stockholm SE-171 77, Sweden.
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16
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Lee TH, Hirst DJ, Kulkarni K, Del Borgo MP, Aguilar MI. Exploring Molecular-Biomembrane Interactions with Surface Plasmon Resonance and Dual Polarization Interferometry Technology: Expanding the Spotlight onto Biomembrane Structure. Chem Rev 2018; 118:5392-5487. [PMID: 29793341 DOI: 10.1021/acs.chemrev.7b00729] [Citation(s) in RCA: 49] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
The molecular analysis of biomolecular-membrane interactions is central to understanding most cellular systems but has emerged as a complex technical challenge given the complexities of membrane structure and composition across all living cells. We present a review of the application of surface plasmon resonance and dual polarization interferometry-based biosensors to the study of biomembrane-based systems using both planar mono- or bilayers or liposomes. We first describe the optical principals and instrumentation of surface plasmon resonance, including both linear and extraordinary transmission modes and dual polarization interferometry. We then describe the wide range of model membrane systems that have been developed for deposition on the chips surfaces that include planar, polymer cushioned, tethered bilayers, and liposomes. This is followed by a description of the different chemical immobilization or physisorption techniques. The application of this broad range of engineered membrane surfaces to biomolecular-membrane interactions is then overviewed and how the information obtained using these techniques enhance our molecular understanding of membrane-mediated peptide and protein function. We first discuss experiments where SPR alone has been used to characterize membrane binding and describe how these studies yielded novel insight into the molecular events associated with membrane interactions and how they provided a significant impetus to more recent studies that focus on coincident membrane structure changes during binding of peptides and proteins. We then discuss the emerging limitations of not monitoring the effects on membrane structure and how SPR data can be combined with DPI to provide significant new information on how a membrane responds to the binding of peptides and proteins.
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Affiliation(s)
- Tzong-Hsien Lee
- Department of Biochemistry and Molecular Biology and Biomedicine Discovery Institute , Monash University , Clayton , VIC 3800 , Australia
| | - Daniel J Hirst
- Department of Biochemistry and Molecular Biology and Biomedicine Discovery Institute , Monash University , Clayton , VIC 3800 , Australia
| | - Ketav Kulkarni
- Department of Biochemistry and Molecular Biology and Biomedicine Discovery Institute , Monash University , Clayton , VIC 3800 , Australia
| | - Mark P Del Borgo
- Department of Biochemistry and Molecular Biology and Biomedicine Discovery Institute , Monash University , Clayton , VIC 3800 , Australia
| | - Marie-Isabel Aguilar
- Department of Biochemistry and Molecular Biology and Biomedicine Discovery Institute , Monash University , Clayton , VIC 3800 , Australia
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17
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Engel S, Möller N, Stricker L, Peterlechner M, Ravoo BJ. A Modular System for the Design of Stimuli-Responsive Multifunctional Nanoparticle Aggregates by Use of Host-Guest Chemistry. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2018; 14:e1704287. [PMID: 29573341 DOI: 10.1002/smll.201704287] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/08/2017] [Revised: 01/24/2018] [Indexed: 06/08/2023]
Abstract
A self-assembly approach for the design of multifunctional nanomaterials consisting of different nanoparticles (gold, iron oxide, and lanthanide-doped LiYF4 ) is developed. This modular system takes advantage of the light-responsive supramolecular host-guest chemistry of β-cyclodextrin and arylazopyrazole, which enables the dynamic and reversible self-assembly of particles to spherical nanoparticle aggregates in aqueous solution. Due to the magnetic iron oxide nanoparticles, the aggregates can be manipulated by an external magnetic field leading to the formation of linear structures. As a result of the integration of upconversion nanoparticles, the aggregates are additionally responsive to near-infrared light and can be redispersed by use of the upconversion effect. By varying the nanoparticle and linker concentrations the composition, size, shape, and properties of the multifunctional nanoparticle aggregates can be fine-tuned.
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Affiliation(s)
- Sabrina Engel
- Organic Chemistry Institute and Center for Soft Nanoscience, Westfälische Wilhelms-Universität Münster, Corrensstrasse 40, 48149, Münster, Germany
| | - Nadja Möller
- Organic Chemistry Institute and Center for Soft Nanoscience, Westfälische Wilhelms-Universität Münster, Corrensstrasse 40, 48149, Münster, Germany
| | - Lucas Stricker
- Organic Chemistry Institute and Center for Soft Nanoscience, Westfälische Wilhelms-Universität Münster, Corrensstrasse 40, 48149, Münster, Germany
| | - Martin Peterlechner
- Institute of Materials Physics, Westfälische Wilhelms-Universität Münster, Wilhelm-Klemm-Strasse 10, 48149, Münster, Germany
| | - Bart Jan Ravoo
- Organic Chemistry Institute and Center for Soft Nanoscience, Westfälische Wilhelms-Universität Münster, Corrensstrasse 40, 48149, Münster, Germany
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18
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Putaux JL, Lancelon-Pin C, Legrand FX, Pastrello M, Choisnard L, Gèze A, Rochas C, Wouessidjewe D. Self-Assembly of Amphiphilic Biotransesterified β-Cyclodextrins: Supramolecular Structure of Nanoparticles and Surface Properties. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2017; 33:7917-7928. [PMID: 28492333 DOI: 10.1021/acs.langmuir.7b01136] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
A series of β-cyclodextrin (βCD) amphiphilic derivatives with varying degrees of substitution were prepared by acylating βCDs on their secondary face using thermolysin to catalyze the transesterification. After dissolution in acetone, the βCD-Cn derivatives (n = 8, 10, 12, 14) were nanoprecipitated in water, where they self-organized into structured particles that were characterized using cryo-transmission electron microscopy (cryo-TEM) images and small-angle X-ray scattering (SAXS) data. Two types of morphologies and ultrastructures were observed depending on the total degree of substitution (TDS) of the parent derivative. The molecules with TDS < 5 formed nanospheres with a multilamellar organization, whereas those with TDS > 5 self-assembled into barrel-like (n = 8, 10, 12) or more tortuous (n = 14) particles with a columnar inverse hexagonal structure. In particular, faceted βCD-C14 particles (TDS = 7) appeared to be composed of several domains with different orientations that were separated by sharp interfaces. Ultrastructural models were proposed on the basis of cryo-TEM images and the analysis of the contrast distribution in different projections of the lattice. Complementary compression isotherm experiments carried out at the air-water interface also suggested that differences in the molecular conformation of the series of derivatives existed depending on whether TDS was lower or higher than 5.
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Affiliation(s)
| | | | - François-Xavier Legrand
- Institut Galien Paris-Sud, CNRS UMR 8612, Univ. Paris-Sud, Univ. Paris-Saclay , 5 Rue Jean-Baptiste Clément, F-92296 Châtenay-Malabry, France
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19
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Shaw SK, Liu W, Brennan SP, de Lourdes Betancourt-Mendiola M, Smith BD. Non-Covalent Assembly Method that Simultaneously Endows a Liposome Surface with Targeting Ligands, Protective PEG Chains, and Deep-Red Fluorescence Reporter Groups. Chemistry 2017; 23:12646-12654. [PMID: 28736857 DOI: 10.1002/chem.201702649] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2017] [Indexed: 12/28/2022]
Abstract
A new self-assembly method is used to rapidly functionalize the surface of liposomes without perturbing the membrane integrity or causing leakage of the aqueous contents. The key molecule is a cholesterol-squaraine-PEG conjugate with three important structural elements: a cholesterol membrane anchor, a fluorescent squaraine docking station that allows rapid and high-affinity macrocycle threading, and a long PEG-2000 chain to provide steric shielding of the decorated liposome. The two-step method involves spontaneous insertion of the conjugate into the outer leaflet of pre-formed liposomes followed by squaraine threading with a tetralactam macrocycle that has appended targeting ligands. A macrocycle with six carboxylates permitted immobilization of intact fluorescent liposomes on the surface of cationic polymer beads, whereas a macrocycle with six zinc(II)-dipicolylamine units enabled selective targeting of anionic membranes, including agglutination of bacteria in the presence of human cells.
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Affiliation(s)
- Scott K Shaw
- Department of Chemistry & Biochemistry, University of Notre Dame, 236 Nieuwland Science Hall, Notre Dame, IN., 46545, USA
| | - Wenqi Liu
- Department of Chemistry & Biochemistry, University of Notre Dame, 236 Nieuwland Science Hall, Notre Dame, IN., 46545, USA
| | - Seamus P Brennan
- Department of Chemistry & Biochemistry, University of Notre Dame, 236 Nieuwland Science Hall, Notre Dame, IN., 46545, USA
| | | | - Bradley D Smith
- Department of Chemistry & Biochemistry, University of Notre Dame, 236 Nieuwland Science Hall, Notre Dame, IN., 46545, USA
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20
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Varan G, Varan C, Erdoğar N, Hıncal AA, Bilensoy E. Amphiphilic cyclodextrin nanoparticles. Int J Pharm 2017; 531:457-469. [PMID: 28596142 DOI: 10.1016/j.ijpharm.2017.06.010] [Citation(s) in RCA: 75] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2017] [Revised: 05/29/2017] [Accepted: 06/03/2017] [Indexed: 10/19/2022]
Abstract
Cyclodextrins are cyclic oligosaccharides obtained by enzymatic digestion of starch. The α-, β- and γ- cyclodextrins contain respectively 6, 7 and 8 glucopyranose units, with primary and secondary hydroxyl groups located on the narrow and wider rims of a truncated cone shape structure. Such structure is that of a hydrophobic inner cavity with a hydrophilic outer surface allowing to interact with a wide range of molecules like ions, protein and oligonucleotides to form inclusion complexes. Many cyclodextrin applications in the pharmaceutical area have been widely described in the literature due to their low toxicity and low immunogenicity. The most important is to increase the solubility of hydrophobic drugs in water. Chemically modified cyclodextrin derivatives have been synthesized to enhance their properties and more specifically their pharmacological activity. Among these, amphiphilic derivatives were designed to build organized molecular structures, through selfassembling systems or by incorporation in lipid membranes, expected to improve the vectorization in the organism of the drug-containing cyclodextrin cavities. These derivatives can form a variety of supramolecular structures such as micelles, vesicles and nanoparticles. The purpose of this review is to summarize applications of amphiphilic cyclodextrins in different areas of drug delivery, particularly in protein and peptide drug delivery and gene delivery. The article highlights important amphiphilic cyclodextrin applications in the design of novel delivery systems like nanoparticles.
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Affiliation(s)
- Gamze Varan
- Department of Nanotechnology and Nanomedicine, Instıtute of Graduate Studies in Science, Hacettepe University, 06800 Beytepe-Ankara, Turkey
| | - Cem Varan
- Department of Nanotechnology and Nanomedicine, Instıtute of Graduate Studies in Science, Hacettepe University, 06800 Beytepe-Ankara, Turkey
| | - Nazlı Erdoğar
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Hacettepe University, 06100 Sıhhiye-Ankara, Turkey
| | - A Atilla Hıncal
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Hacettepe University, 06100 Sıhhiye-Ankara, Turkey
| | - Erem Bilensoy
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Hacettepe University, 06100 Sıhhiye-Ankara, Turkey.
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21
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Štimac A, Šekutor M, Mlinarić-Majerski K, Frkanec L, Frkanec R. Adamantane in Drug Delivery Systems and Surface Recognition. Molecules 2017; 22:molecules22020297. [PMID: 28212339 PMCID: PMC6155684 DOI: 10.3390/molecules22020297] [Citation(s) in RCA: 81] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2016] [Revised: 01/19/2017] [Accepted: 02/11/2017] [Indexed: 11/30/2022] Open
Abstract
The adamantane moiety is widely applied in design and synthesis of new drug delivery systems and in surface recognition studies. This review focuses on liposomes, cyclodextrins, and dendrimers based on or incorporating adamantane derivatives. Our recent concept of adamantane as an anchor in the lipid bilayer of liposomes has promising applications in the field of targeted drug delivery and surface recognition. The results reported here encourage the development of novel adamantane-based structures and self-assembled supramolecular systems for basic chemical investigations as well as for biomedical application.
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Affiliation(s)
- Adela Štimac
- University of Zagreb, Centre for Research and Knowledge Transfer in Biotechnology, Rockefellerova 10, 10000 Zagreb, Croatia.
| | - Marina Šekutor
- Department of Organic Chemistry and Biochemistry, Ruđer Bošković Institute, Bijenička cesta 54, 10000 Zagreb, Croatia.
| | - Kata Mlinarić-Majerski
- Department of Organic Chemistry and Biochemistry, Ruđer Bošković Institute, Bijenička cesta 54, 10000 Zagreb, Croatia.
| | - Leo Frkanec
- Department of Organic Chemistry and Biochemistry, Ruđer Bošković Institute, Bijenička cesta 54, 10000 Zagreb, Croatia.
| | - Ruža Frkanec
- University of Zagreb, Centre for Research and Knowledge Transfer in Biotechnology, Rockefellerova 10, 10000 Zagreb, Croatia.
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22
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Migas UM, Quinn MK, McManus JJ. Protein self-assembly following in situ expression in artificial and mammalian cells. Integr Biol (Camb) 2017; 9:444-450. [DOI: 10.1039/c6ib00240d] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The importance of in vitro measurements in explaining the mechanisms underlying protein self-assembly in physiologically relevant conditions has been demonstrated in solution and in artificial and mammalian cells.
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23
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Kauscher U, Ravoo BJ. A self-assembled cyclodextrin nanocarrier for photoreactive squaraine. Beilstein J Org Chem 2016; 12:2535-2542. [PMID: 28144322 PMCID: PMC5238535 DOI: 10.3762/bjoc.12.248] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2016] [Accepted: 11/04/2016] [Indexed: 01/10/2023] Open
Abstract
Photoreactive squaraines produce cytotoxic oxygen species under irradiation and have significant potential for photodynamic therapy. Herein we report that squaraines can be immobilized on a self-assembled nanocarrier composed of amphiphilic cyclodextrins to enhance their photochemical activity. To this end, a squaraine was equipped with two adamantane moieties that act as anchors for the cyclodextrin vesicle surface. The supramolecular immobilization was monitored by using fluorescence spectroscopy and microscopy and the photochemistry of the squaraine was investigated by using absorption spectroscopy.
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Affiliation(s)
- Ulrike Kauscher
- Organic Chemistry Institute and Center for Soft Nanoscience, Westfälische Wilhelms-Universität Münster, Corrensstrasse 40, 48149 Münster, Germany
| | - Bart Jan Ravoo
- Organic Chemistry Institute and Center for Soft Nanoscience, Westfälische Wilhelms-Universität Münster, Corrensstrasse 40, 48149 Münster, Germany
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24
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Schibilla F, Stegemann L, Strassert CA, Rizzo F, Ravoo BJ. Fluorescence quenching in β-cyclodextrin vesicles: membrane confinement and host-guest interactions. Photochem Photobiol Sci 2016; 15:235-43. [PMID: 26777315 DOI: 10.1039/c5pp00226e] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Fluorescent β-cyclodextrin vesicles (β-CDV) that display host cavities available for host-guest interactions at the vesicle surface were prepared by incorporation of the hydrophobic spirobifluorene-based dye 1 into the membrane of unilamellar vesicles. Fluorescence quenching of dye 1 was observed in the presence of different quenchers. Methyl viologen 2 does not quench dye 1 because it does not bind to β-CDV. 4-Nitrophenol 3 and 4-nitrophenol covalently connected to adamantane 4 quench the fluorescence of dye 1 in neutral solution, but by different mechanisms according to lifetime measurements. The quenching efficiency of 3 is pH dependent due to the presence of the phenolate form. Competition experiments with excess host and guest showed that 3 is likely to diffuse in and out of the membrane, while 4 forms an inclusion complex with β-CDV leading to close contact and efficient quenching. Our findings confirm that this dynamic supramolecular system is a versatile model to investigate quenching and recognition processes in bilayer membranes.
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Affiliation(s)
- Frauke Schibilla
- Organic Chemistry Institute and CeNTech, Westfälische Wilhelms-Universität Münster, Corrensstr. 40, D-48149 Münster, Germany.
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25
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Soo E, Thakur S, Qu Z, Jambhrunkar S, Parekh HS, Popat A. Enhancing delivery and cytotoxicity of resveratrol through a dual nanoencapsulation approach. J Colloid Interface Sci 2015; 462:368-74. [PMID: 26479200 DOI: 10.1016/j.jcis.2015.10.022] [Citation(s) in RCA: 78] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2015] [Revised: 10/07/2015] [Accepted: 10/08/2015] [Indexed: 11/16/2022]
Abstract
Despite the known anticancer potential of resveratrol, its clinical applications are often hindered by physicochemical limitations such as poor solubility and stability. The encapsulation of resveratrol in formulations such as polymeric nanoparticles and liposomes has shown limited success. This study aimed to develop and optimize a novel drug carrier by co-encapsulating pristine resveratrol alongside cyclodextrin-resveratrol inclusion complexes in the lipophilic and hydrophilic compartments of liposomes, respectively by using a novel dual carrier approach. The particle size, polydispersity index and zeta potential of the final formulation were 131±1.30nm, 0.089±0.005 and -2.64±0.51mV, respectively. Compared to free resveratrol and conventional liposomal formulations with drug release profile of 40-60%, our novel nanoformulations showed complete (100%) drug release in 24h. The formulation was stable for 14days at 4°C. We also studied the in vitro cytotoxicity of resveratrol encapsulated liposomes in HT-29 colon cancer cell lines. The cytotoxicity profile of our liposomes was observed to be dose dependent and enhanced in comparison to free resveratrol (in DMSO). Our study demonstrates that co-encapsulation of pristine resveratrol along with its cyclodextrin complex in liposomal formulations is a plausible option for the enhanced delivery of the hydrophobic chemotherapeutic agent.
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Affiliation(s)
- Ernest Soo
- School of Pharmacy, The University of Queensland, 20 Cornwall St, Brisbane, Australia
| | - Sachin Thakur
- School of Pharmacy, The University of Queensland, 20 Cornwall St, Brisbane, Australia
| | - Zhi Qu
- School of Pharmacy, The University of Queensland, 20 Cornwall St, Brisbane, Australia
| | - Siddharth Jambhrunkar
- Mucosal Diseases Group, Mater Research Institute - The University of Queensland, Translational Research Institute, 37 Kent St, Woolloongabba, QLD 4102, Australia
| | - Harendra S Parekh
- School of Pharmacy, The University of Queensland, 20 Cornwall St, Brisbane, Australia
| | - Amirali Popat
- School of Pharmacy, The University of Queensland, 20 Cornwall St, Brisbane, Australia; Mucosal Diseases Group, Mater Research Institute - The University of Queensland, Translational Research Institute, 37 Kent St, Woolloongabba, QLD 4102, Australia.
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26
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Deng J, Liu X, Zhang S, Cheng C, Nie C, Zhao C. Versatile and Rapid Postfunctionalization from Cyclodextrin Modified Host Polymeric Membrane Substrate. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2015; 31:9665-9674. [PMID: 26301434 DOI: 10.1021/acs.langmuir.5b02038] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Surface modification has long been of great interest to impart desired functionalities to the bioimplants. However, due to the limitations of recent technologies in surface modification, it is highly desirable to explore novel protocols, which can advantageously and efficiently endow the inert material surfaces with versatile biofunctionalities. Herein, to achieve versatile and rapid postfunctionalization of polymeric membrane, we demonstrate a new strategy for the fabrication of β-cyclodextrin (β-CD) modified host membrane substrate that can recognize a series of well-designed guest macromolecules. The surface assembly procedure was driven by the host-guest interaction between adamantane (Ad) and β-CD. β-CD immobilized host membrane was fabricated via two steps: (1) epoxy groups enriched poly(ether sulfone) (PES) membrane was first prepared via in situ cross-linking polymerization and subsequently phase separation; (2) mono-6-deoxy-6-ethylenediamine-β-CD (EDA-β-CD) was then anchored onto the surface of the epoxy functionalized PES membrane to obtain PES-CD. Subsequently, three types of Ad-terminated polymers, including Ad-poly(styrenesulfonate-co-sodium acrylate) (Ad-PSA), Ad-methoxypoly(ethylene glycol) (Ad-PEG), and Ad-poly(methyl chloride-quaternized 2-(dimethylamino)ethyl methacrylate (Ad-PMT), were separately assembled onto the β-CD immobilized surfaces to endow the membranes with anticoagulant, antifouling, and antibacterial capability, respectively. Activated partial thromboplastin time (APTT), thrombin time (TT), and prothrombin time (PT) measurements were carried out to explore the anticoagulant activity. The antifouling capability was evaluated via protein adsorption and platelet adhesion measurements. Moreover, Staphyllococcous aureus (S. aureus) was selected as model bacteria to evaluate the antibacterial ability of the functionalized membranes. The results indicated that well-regulated blood compatibility, antifouling capability, and bactericidal activity could be achieved by the proposed rapid postfunctionalization on polymeric membranes. This approach of versatile and rapid postfunctionalization is promising for the preparation of multifunctional polymeric membrane materials to meet with various demands for the further applications.
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Affiliation(s)
- Jie Deng
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University , Chengdu 610065, China
| | - Xinyue Liu
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University , Chengdu 610065, China
| | - Shuqing Zhang
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University , Chengdu 610065, China
| | - Chong Cheng
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University , Chengdu 610065, China
| | - Chuanxiong Nie
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University , Chengdu 610065, China
| | - Changsheng Zhao
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University , Chengdu 610065, China
- National Engineering Research Center for Biomaterials, Sichuan University , Chengdu 610064, China
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27
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Moerkerke S, Wouters J, Jabin I. Selective Recognition of Phosphatidylcholine Lipids by a Biomimetic Calix[6]tube Receptor. J Org Chem 2015; 80:8720-6. [DOI: 10.1021/acs.joc.5b01531] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Steven Moerkerke
- Laboratoire
de Chimie Organique, Université Libre de Bruxelles (ULB), Avenue
F. D. Roosevelt 50, CP160/06, B-1050 Brussels, Belgium
| | - Johan Wouters
- Département
de Chimie, Université de Namur (UNamur), Rue de Bruxelles 61, B-5000 Namur, Belgium
| | - Ivan Jabin
- Laboratoire
de Chimie Organique, Université Libre de Bruxelles (ULB), Avenue
F. D. Roosevelt 50, CP160/06, B-1050 Brussels, Belgium
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28
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Drug-in-cyclodextrin-in-liposomes: A novel drug delivery system for flurbiprofen. Int J Pharm 2015; 492:40-5. [PMID: 26162980 DOI: 10.1016/j.ijpharm.2015.07.011] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2015] [Revised: 06/24/2015] [Accepted: 07/03/2015] [Indexed: 11/23/2022]
Abstract
A novel delivery system based on drug-cyclodextrin (CD) complexation and liposomes has been developed to improve therapeutic effect. Three different means, i.e., co-evaporation (COE), co-ground (GR) and co-lyophilization (COL) and three different CDs (β-CD, HP-β-CD and SBE-β-CD) were contrasted to investigate the characteristics of the end products. FP/FP-CD loaded liposomes were obtained by thin layer evaporation technique. Size, zeta potential and encapsulation efficiency were investigated by light scattering analysis and minicolumn centrifugation. Differential scanning calorimetry (DSC) and transmission electron microscopy (TEM) showed the amorphous form of complexes and spherical morphology of FP-HP-β-CD COE loaded liposomes. The pH 7.4 phosphate buffer solution (PBS) was selected as the medium for the in vitro release. Wistar rats were put into use to study the pharmacokinetic behavior in vivo. FP-HP-β-CD COE loaded liposomes showed the better physicochemical characters that followed the average particle size, polydispersity index, zeta potential and mean encapsulation efficiency 158±10 nm, 0.19±0.1, -12.4±0.1 mW and 56.1±0.5%, separately. The relative bioavailability of FP-HP-β-CD COE loaded liposomes was 420%, 201% and 402% compared with FP solution, FP-HP-β-CD and FP-liposomes, respectively. In conclusion, the novel delivery system improved the relative bioavailability of FP significantly and provided a perspective way for delivery of insoluble drugs.
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Samanta A, Tesch M, Keller U, Klingauf J, Studer A, Ravoo BJ. Fabrication of Hydrophilic Polymer Nanocontainers by Use of Supramolecular Templates. J Am Chem Soc 2015; 137:1967-71. [DOI: 10.1021/ja511963g] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Avik Samanta
- Organic
Chemistry Institute and Graduate School of Chemistry and Center for
Soft Nanoscience, Westfälische Wilhelms-Universität Münster, Correnstrasse
40, 48149 Münster, Germany
| | - Matthias Tesch
- Organic
Chemistry Institute and Graduate School of Chemistry and Center for
Soft Nanoscience, Westfälische Wilhelms-Universität Münster, Correnstrasse
40, 48149 Münster, Germany
| | - Ulrike Keller
- Institute of Medical Physics and Biophysics, Robert-Koch-Strasse 31, 48149 Münster, Germany
| | - Jürgen Klingauf
- Institute of Medical Physics and Biophysics, Robert-Koch-Strasse 31, 48149 Münster, Germany
| | - Armido Studer
- Organic
Chemistry Institute and Graduate School of Chemistry and Center for
Soft Nanoscience, Westfälische Wilhelms-Universität Münster, Correnstrasse
40, 48149 Münster, Germany
| | - Bart Jan Ravoo
- Organic
Chemistry Institute and Graduate School of Chemistry and Center for
Soft Nanoscience, Westfälische Wilhelms-Universität Münster, Correnstrasse
40, 48149 Münster, Germany
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Abstract
This review describes recent results in the investigation of macrocyclic amphiphiles, which are classified based on different macrocyclic frameworks including cyclodextrins, calixarenes, cucurbiturils, pillararenes, and other macrocycles involved.
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Affiliation(s)
- Kecheng Jie
- State Key Laboratory of Chemical Engineering
- Department of Chemistry
- Zhejiang University
- Hangzhou 310027
- P. R. China
| | - Yujuan Zhou
- State Key Laboratory of Chemical Engineering
- Department of Chemistry
- Zhejiang University
- Hangzhou 310027
- P. R. China
| | - Yong Yao
- State Key Laboratory of Chemical Engineering
- Department of Chemistry
- Zhejiang University
- Hangzhou 310027
- P. R. China
| | - Feihe Huang
- State Key Laboratory of Chemical Engineering
- Department of Chemistry
- Zhejiang University
- Hangzhou 310027
- P. R. China
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31
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Nayak N, Gopidas KR. Unusual self-assembly of a hydrophilic β-cyclodextrin inclusion complex into vesicles capable of drug encapsulation and release. J Mater Chem B 2015; 3:3425-3428. [DOI: 10.1039/c4tb02114b] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
A hydrophilic β-cyclodextrin bis-inclusion complex forms supramolecular vesicles which can be loaded with the anti-cancer drug doxorubicin. The loaded drug can be released upon addition of a competitive inclusion binder such as adamantane carboxylate.
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Affiliation(s)
- Nagaraj Nayak
- Photosciences and Photonics Section
- Chemical Sciences and Technology Division
- CSIR-National Institute for Interdisciplinary Science and Technology (CSIR-NIIST)
- Council of Scientific and Industrial Research (CSIR)
- Trivandrum 695019
| | - Karical R. Gopidas
- Photosciences and Photonics Section
- Chemical Sciences and Technology Division
- CSIR-National Institute for Interdisciplinary Science and Technology (CSIR-NIIST)
- Council of Scientific and Industrial Research (CSIR)
- Trivandrum 695019
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32
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Versluis F, Voskuhl J, Vos J, Friedrich H, Ravoo BJ, Bomans PHH, Stuart MCA, Sommerdijk NAJM, Kros A. Coiled coil driven membrane fusion between cyclodextrin vesicles and liposomes. SOFT MATTER 2014; 10:9746-9751. [PMID: 25367891 DOI: 10.1039/c4sm01801j] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Controlled fusion events between natural membranes composed of phospholipids with synthetic unnatural membranes will yield valuable fundamental information on the mechanism of membrane fusion. Here, fusion between vastly different phospholipid liposomes and cyclodextrin amphiphile based vesicles (CDVs) controlled by a pair of coiled coil forming lipidated peptides was investigated. Fusion events were characterized using lipid and content mixing assays and the resulting hybrid assemblies were characterized with cryo-TEM imaging. The secondary/quaternary structure of the lipidated peptides at the membrane interface was studied using circular dichroism spectroscopy. This is the first example of targeted fusion between natural and non-natural bilayer membranes and the in situ formation of hybrid CDV-liposome structures is of interest as it yields fundamental information about the mechanism through which fusion proceeds.
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Affiliation(s)
- Frank Versluis
- Supramolecular & Biomaterials Chemistry, Leiden Institute of Chemistry, P. O. Box 9502, 2300 RA Leiden, The Netherlands.
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Angelova A, Angelov B, Mutafchieva R, Lesieur S. Biocompatible Mesoporous and Soft Nanoarchitectures. J Inorg Organomet Polym Mater 2014. [DOI: 10.1007/s10904-014-0143-8] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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34
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Becker LF, Schwarz DH, Wenz G. Synthesis of uniform cyclodextrin thioethers to transport hydrophobic drugs. Beilstein J Org Chem 2014; 10:2920-7. [PMID: 25550759 PMCID: PMC4273231 DOI: 10.3762/bjoc.10.310] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2014] [Accepted: 11/23/2014] [Indexed: 01/03/2023] Open
Abstract
Methyl and ethyl thioether groups were introduced at all primary positions of α-, β-, and γ-cyclodextrin by nucleophilic displacement reactions starting from the corresponding per-(6-deoxy-6-bromo)cyclodextrins. Further modification of all 2-OH positions by etherification with iodo terminated triethylene glycol monomethyl ether (and tetraethylene glycol monomethyl ether, respectively) furnished water-soluble hosts. Especially the β-cyclodextrin derivatives exhibit very high binding potentials towards the anaesthetic drugs sevoflurane and halothane. Since the resulting inclusion compounds are highly soluble in water at temperatures ≤37 °C they are good candidates for new aqueous dosage forms which would avoid inhalation anaesthesia.
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Affiliation(s)
- Lisa F Becker
- Organic Macromolecular Chemistry, Saarland University, Campus C4.2, 66123 Saarbrücken, Germany
| | - Dennis H Schwarz
- Organic Macromolecular Chemistry, Saarland University, Campus C4.2, 66123 Saarbrücken, Germany
| | - Gerhard Wenz
- Organic Macromolecular Chemistry, Saarland University, Campus C4.2, 66123 Saarbrücken, Germany
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35
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Wei P, Cook TR, Yan X, Huang F, Stang PJ. A discrete amphiphilic organoplatinum(II) metallacycle with tunable lower critical solution temperature behavior. J Am Chem Soc 2014; 136:15497-500. [PMID: 25340861 DOI: 10.1021/ja5093503] [Citation(s) in RCA: 93] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Oligo(ethylene glycol) (OEG)-decorated supramolecular assemblies are distinguished by their neutral character and macroscopic temperature-sensitive phase transition behavior. OEG functionalization is an emerging strategy to obtain thermoresponsive macrocyclic amphiphiles, although known methods organize the hydrophilic and hydrophobic segments by covalent bonding. Coordination-driven self-assembly offers an alternative route for organizing OEG-functionalized precursors into nanoscopic architectures, resulting in well-defined metallacycle cores surrounded by hydrophilic scaffolds to impart overall amphiphilic character. Here a tri(ethylene glycol)-functionalized thermosensitive amphiphilic metallacycle was prepared with high efficiency by means of the directional-bonding approach. The ensembles thus formed showed good lower critical solution temperature behavior with a highly sensitive phase separation and excellent reversibility. Moreover, the clouding point decreased with increasing metallacycle concentration and addition of K(+).
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Affiliation(s)
- Peifa Wei
- State Key Laboratory of Chemical Engineering, Department of Chemistry, Zhejiang University , Hangzhou 310027, P. R. China
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36
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Zerkoune L, Angelova A, Lesieur S. Nano-Assemblies of Modified Cyclodextrins and Their Complexes with Guest Molecules: Incorporation in Nanostructured Membranes and Amphiphile Nanoarchitectonics Design. NANOMATERIALS 2014; 4:741-765. [PMID: 28344245 PMCID: PMC5304703 DOI: 10.3390/nano4030741] [Citation(s) in RCA: 69] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/13/2014] [Revised: 07/28/2014] [Accepted: 07/28/2014] [Indexed: 01/05/2023]
Abstract
A variety of cyclodextrin-based molecular structures, with substitutions of either primary or secondary faces of the natural oligosaccharide macrocycles of α-, β-, or γ-cyclodextrins, have been designed towards innovative applications of self-assembled cyclodextrin nanomaterials. Amphiphilic cyclodextrins have been obtained by chemical or enzymatic modifications of their macrocycles using phospholipidyl, peptidolipidyl, cholesteryl, and oligo(ethylene oxide) anchors as well as variable numbers of grafted hydrophobic hydrocarbon or fluorinated chains. These novel compounds may self-assemble in an aqueous medium into different types of supramolecular nanoassemblies (vesicles, micelles, nanorods, nanospheres, and other kinds of nanoparticles and liquid crystalline structures). This review discusses the supramolecular nanoarchitectures, which can be formed by amphiphilic cyclodextrin derivatives in mixtures with other molecules (phospholipids, surfactants, and olygonucleotides). Biomedical applications are foreseen for nanoencapsulation of drug molecules in the hydrophobic interchain volumes and nanocavities of the amphiphilic cyclodextrins (serving as drug carriers or pharmaceutical excipients), anticancer phototherapy, gene delivery, as well as for protection of instable active ingredients through inclusion complexation in nanostructured media.
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Affiliation(s)
- Leïla Zerkoune
- CNRS UMR 8612 Institut Galien Paris-Sud, Paris-Sud 11 University, 92290 Châtenay-Malabry, France.
| | - Angelina Angelova
- CNRS UMR 8612 Institut Galien Paris-Sud, Paris-Sud 11 University, 92290 Châtenay-Malabry, France.
| | - Sylviane Lesieur
- CNRS UMR 8612 Institut Galien Paris-Sud, Paris-Sud 11 University, 92290 Châtenay-Malabry, France.
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Migas UM, Abbey L, Velasco-Torrijos T, McManus JJ. Adding glycolipid functionality to model membranes--phase behaviour of a synthetic glycolipid in a phospholipid membrane. SOFT MATTER 2014; 10:3978-3983. [PMID: 24733306 DOI: 10.1039/c4sm00147h] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Glycolipid phase behaviour is less well understood than for many phospholipids, but due to their structural and functional diversity, glycolipids represent an important group of amphiphiles from which biological function is derived. Here we have incorporated a synthetic glycolipid in binary mixtures with DOPC (1,2-dioleoyl-sn-glycero-3-phosphocholine) into giant unilamellar vesicles (GUVs) at biologically relevant concentrations and observed the phase behaviour of the lipid mixtures for a range of glycolipid concentrations. At low concentrations, the glycolipid is fully dispersed in the GUV membrane. At glycolipid molar concentrations above 10%, the formation of lipid tubules is observed, and is consistent with the formation of a columnar lipid phase. Lipid tubules are observed in aqueous and oil solvents, suggesting that both hexagonal and inverted hexagonal lipid arrangements can be formed. This work may offer insights into the biological function of glycolipids and the challenges in formulating them for use in industrial applications.
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Affiliation(s)
- Urszula M Migas
- Department of Chemistry, National University of Ireland Maynooth, Maynooth Co. Kildare, Ireland.
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38
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Himmelein S, Sporenberg N, Schönhoff M, Ravoo BJ. Size-selective permeation of water-soluble polymers through the bilayer membrane of cyclodextrin vesicles investigated by PFG-NMR. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2014; 30:3988-3995. [PMID: 24650278 DOI: 10.1021/la500226z] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Cyclodextrin vesicles (CDVs) consist of a bilayer of amphiphilic cyclodextrins (CDs). CDVs exhibit CD cavities at their surface that are able to recognize and bind hydrophobic guest molecules via size-selective inclusion. In this study, the permeability of α- and β-CDVs is investigated by pulsed field gradient-stimulated echo (PFG-STE) nuclear magnetic resonance. Diffusion experiments with water and two types of water-soluble polymers, polyethylene glycol (PEG) and polypropylene glycol (PPG), revealed three main factors that influence the exchange rate and permeability of CDVs. First, the length of the hydrophobic chain of the CD amphiphile plays a crucial role. Reasonably, vesicles consisting of amphiphiles with a longer aliphatic chain are less permeable since both membrane thickness and melting temperature T(m) increase. Second, the exchange rate through the bilayer membrane depends on the molecular weight of the polymer and decreases with increasing weight of the polymer. Most interestingly, a size-selective distinction of permeation due to the embedded CDs in the bilayer membrane was found. The mechanism of permeation is shown to occur through the CD cavity, such that depending on the size of the cavity, permeation of polymers with different cross-sectional diameters takes place. Whereas PPG permeates through the membrane of β-CD vesicles, it does not permeate α-CD vesicles.
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Affiliation(s)
- Sabine Himmelein
- Organic Chemistry Institute and Graduate School of Chemistry, Westfälische Wilhelms-Universität Münster , Corrensstraße 40, 48149 Münster, Germany
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39
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Silva OF, Correa NM, Silber JJ, de Rossi RH, Fernández MA. Supramolecular assemblies obtained by mixing different cyclodextrins and AOT or BHDC reverse micelles. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2014; 30:3354-3362. [PMID: 24597759 DOI: 10.1021/la404584q] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
In this contribution we show the effect of the surfactant polar head and the external solvent on the incorporation of different cyclodextrins (CDs) {α-CD, β-CD, γ-CD, decenylsuccinyl-β-CD (Mod-β-CD), and hydroxypropyl-β-CD (hp-β-CD)} in different reverse micelles (RMs) {benzene/sodium 1,4-bis(2-ethylhexyl) sulfosuccinate(AOT)/water, and benzene/benzyl-n-hexadecyldimethylammonium chloride (BHDC)/water} and compare them with previous results obtained in n-heptane/AOT/water RMs. To investigate the different systems, we have used UV-vis spectrophotometry, induced circular dichroism spectroscopy (ICD), and the achiral molecular probe methyl orange (MO). The results show dramatic differences changing the external solvent and the surfactant, which are explained by considering the differences in the RMs interface composition, the water-surfactant interaction, and the CDs' location in the different media investigated. None of the CDs were incorporated into the benzene/AOT/water RMs at any [H2O]/[surfactant] ratio studied (W0) whereas it was previously shown that Mod-β-CD and hp-β-CD could be included in n-heptane/AOT/water RMs. However, all of the CDs are incorporated in benzene/BHDC/water RMs at W0 > 10 and hp-β-CD is dissolved even at W0 = 0. Different from what was found in n-heptane/AOT RMs, in BHDC RMs MO showed ICD signals with two different CDs: Mod-β-CD and hp-β-CD. The results are explained by considering the known difference in the interfacial water structure for AOT and BHDC RMs and the electron-rich region on the secondary hydroxyl (wider side of the CDs), which helps to solubilize all CDs in BHDC. This study shows that chiral cyclodextrin could be available for a guest in an organic medium such as the RMs. Therefore we have created a potentially powerful nanoreactor with two different confined regions in the same aggregate: the polar core of the RMs and the chiral hydrophobic cavity of cyclodextrin.
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Affiliation(s)
- O Fernando Silva
- Instituto de Investigaciones en Físico-Química de Córdoba, INFIQC-CONICET, Facultad de Ciencias Químicas, Departamento de Química Orgánica, Universidad Nacional de Córdoba, Ciudad Universitaria , X5000HUA Córdoba, Argentina
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40
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Chen J, Lu WL, Gu W, Lu SS, Chen ZP, Cai BC, Yang XX. Drug-in-cyclodextrin-in-liposomes: a promising delivery system for hydrophobic drugs. Expert Opin Drug Deliv 2014; 11:565-77. [PMID: 24490763 DOI: 10.1517/17425247.2014.884557] [Citation(s) in RCA: 76] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
INTRODUCTION Recently, the entrapment of hydrophobic drugs in the form of water-soluble drug-cyclodextrin (CD) complex in liposomes has been investigated as a new strategy to combine the relative advantages of CDs and liposomes into one system, namely drug-in-CD-in-liposome (DCL) systems. AREAS COVERED For DCLs preparation, an overall understanding of the interaction between CDs and lipid components of liposomes is necessary and valuable. The present article reviews the preparation, characterization and application of DCLs, especially as antitumor or transdermal carriers. Double-loading technique, an interesting strategy to control release and increase drug-loading capacity, is also discussed. EXPERT OPINION DCL approach can be useful in increasing drug solubility and vesicles stability, in controlling the in vivo fate of hydrophobic drugs and in avoiding burst release of drug from the vesicles. To obtain stable DCL, the CDs should have a higher affinity to drug molecules compared with liposomal membrane lipids. DCLs prepared by double-loading technique seem to be a suitable targeted drug delivery system because they have a fast onset action with prolonged drug release process and the significantly enhanced drug-loading capacity. In particular, DCLs are suitable for the delivery of hydrophobic drugs which also possess volatility.
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Affiliation(s)
- Jun Chen
- Nanjing University of Chinese Medicine, School of Pharmacy , Nanjing , PR China
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41
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Kauscher U, Samanta A, Ravoo BJ. Photoresponsive vesicle permeability based on intramolecular host–guest inclusion. Org Biomol Chem 2014; 12:600-6. [DOI: 10.1039/c3ob41893f] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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42
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Rodrigo‡ AC, Malhotra‡ S, Böttcher C, Adeli M, Haag R. Dendritic polyglycerol cyclodextrin amphiphiles and their self-assembled architectures to transport hydrophobic guest molecules. RSC Adv 2014. [DOI: 10.1039/c4ra11601a] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
Abstract
Microwave-assisted synthesis of cyclodextrin–polyglycerol based amphiphilic dendrimers and their self-assembly to form well-defined nanostructures in aqueous solutions are reported here.
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Affiliation(s)
- Ana Campo Rodrigo‡
- Institute for Chemistry and Biochemistry
- Freie Universität Berlin
- D-14195 Berlin, Germany
| | - Shashwat Malhotra‡
- Institute for Chemistry and Biochemistry
- Freie Universität Berlin
- D-14195 Berlin, Germany
| | - Christoph Böttcher
- Research Center of Electron Microscopy and the core facility “Biosupramol”
- Institute of Chemistry and Biochemistry
- Freie Universität Berlin
- 14195 Berlin, Germany
| | - Mohsen Adeli
- Institute for Chemistry and Biochemistry
- Freie Universität Berlin
- D-14195 Berlin, Germany
- Department of Chemistry
- Faculty of Science
| | - Rainer Haag
- Institute for Chemistry and Biochemistry
- Freie Universität Berlin
- D-14195 Berlin, Germany
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Roling O, Wendeln C, Kauscher U, Seelheim P, Galla HJ, Ravoo BJ. Layer-by-layer deposition of vesicles mediated by supramolecular interactions. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2013; 29:10174-10182. [PMID: 23898918 DOI: 10.1021/la4011218] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Vesicles are dynamic supramolecular structures with a bilayer membrane consisting of lipids or synthetic amphiphiles enclosing an aqueous compartment. Lipid vesicles have often been considered as mimics for biological cells. In this paper, we present a novel strategy for the preparation of three-dimensional multilayered structures in which vesicles containing amphiphilic β-cyclodextrin are interconnected by proteins using cyclodextrin guests as bifunctional linker molecules. We compared two pairs of adhesion molecules for the immobilization of vesicles: mannose-concanavalin A and biotin-streptavidin. Microcontact printing and thiol-ene click chemistry were used to prepare suitable substrates for the vesicles. Successful immobilization of intact vesicles through the mannose-concanavalin A and biotin-streptavidin motifs was verified by fluorescence microscopy imaging and dynamic light scattering, while the vesicle adlayer was characterized by quartz crystal microbalance with dissipation monitoring. In the case of the biotin-streptavidin motif, up to six layers of intact vesicles could be immobilized in a layer-by-layer fashion using supramolecular interactions. The construction of vesicle multilayers guided by noncovalent vesicle-vesicle junctions can be taken as a minimal model for artificial biological tissue.
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Affiliation(s)
- Oliver Roling
- Organic Chemistry Institute, Westfälische Wilhelms-Universität Münster, Corrensstrasse 40, 48149 Münster, Germany
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Drücker P, Pejic M, Galla HJ, Gerke V. Lipid segregation and membrane budding induced by the peripheral membrane binding protein annexin A2. J Biol Chem 2013; 288:24764-76. [PMID: 23861394 DOI: 10.1074/jbc.m113.474023] [Citation(s) in RCA: 77] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
The formation of dynamic membrane microdomains is an important phenomenon in many signal transduction and membrane trafficking events. It is driven by intrinsic properties of membrane lipids and integral as well as membrane-associated proteins. Here we analyzed the ability of one peripherally associated membrane protein, annexin A2 (AnxA2), to induce the formation of phosphatidylinositol 4,5-bisphosphate (PI(4,5)P2)-rich domains in giant unilamellar vesicles (GUVs) of complex lipid composition. AnxA2 is a cytosolic protein that can bind PI(4,5)P2 and other acidic phospholipids in a Ca(2+)-dependent manner and that has been implicated in cellular membrane dynamics in endocytosis and exocytosis. We show that AnxA2 binding to GUVs induces lipid phase separation and the recruitment of PI(4,5)P2, cholesterol and glycosphingolipids into larger clusters. This property is observed for the full-length monomeric protein, a mutant derivative comprising the C-terminal protein core domain and for AnxA2 residing in a heterotetrameric complex with its intracellular binding partner S100A10. All AnxA2 derivatives inducing PI(4,5)P2 clustering are also capable of forming interconnections between PI(4,5)P2-rich microdomains of adjacent GUVs. Furthermore, they can induce membrane indentations rich in PI(4,5)P2 and inward budding of these membrane domains into the lumen of GUVs. This inward vesiculation is specific for AnxA2 and not shared with other PI(4,5)P2-binding proteins such as the pleckstrin homology (PH) domain of phospholipase Cδ1. Together our results indicate that annexins such as AnxA2 can efficiently induce membrane deformations after lipid segregation, a mechanism possibly underlying annexin functions in membrane trafficking.
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Affiliation(s)
- Patrick Drücker
- Institute of Biochemistry, University of Muenster, Wilhelm-Klemm-Strasse, D-48149 Muenster, Germany
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