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Fang F, Zhao H, Wang R, Chen Q, Wang Q, Zhang Q. Facile Preparation of β-Cyclodextrin-Modified Polysulfone Membrane for Low-Density Lipoprotein Adsorption via Dopamine Self-Assembly and Schiff Base Reaction. MATERIALS (BASEL, SWITZERLAND) 2024; 17:988. [PMID: 38473461 DOI: 10.3390/ma17050988] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/15/2023] [Revised: 02/18/2024] [Accepted: 02/19/2024] [Indexed: 03/14/2024]
Abstract
A facile method for the immobilization of β-cyclodextrin on polysulfone membranes with the aim of selectively adsorbing low-density lipoprotein (LDL) was established, which is based on the self-assembly of dopamine on the membrane followed by the Schiff base reaction with mono-(6-ethanediamine-6-deoxy)-β-cyclodextrin. The surface modification processes were validated using X-ray photoelectron spectroscopy and attenuated total reflectance Fourier-transform infrared spectroscopy. Surface wettability and surface charge of the membranes were investigated through the water contact angle and zeta potential analysis. The cyclodextrin-modified polysulfone membrane (PSF-CD) showed good resistance to protein solutions, as shown by the measurement of BSA adsorption. The assessment of BSA adsorption revealed that the cyclodextrin-modified polysulfone membrane (PSF-CD) exhibited excellent resistance to protein solutions. To investigate the adsorption and desorption behaviors of the membranes in single-protein or binary-protein solutions, an enzyme-linked immunosorbent assay was employed. The results revealed that the PSF-CD possessed remarkable adsorption capacity and higher affinity for LDL in both single-protein and binary-protein solutions, rendering it a suitable material for LDL apheresis.
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Affiliation(s)
- Fei Fang
- College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, China
- Research and Development Center, Zhejiang Sucon Silicone Co., Ltd., Shaoxing 312088, China
| | - Haiyang Zhao
- Research and Development Center, Zhejiang Sucon Silicone Co., Ltd., Shaoxing 312088, China
| | - Rui Wang
- Research and Development Center, Zhejiang Sucon Silicone Co., Ltd., Shaoxing 312088, China
| | - Qi Chen
- Research and Development Center, Zhejiang Sucon Silicone Co., Ltd., Shaoxing 312088, China
| | - Qiongyan Wang
- Research and Development Center, Zhejiang Sucon Silicone Co., Ltd., Shaoxing 312088, China
| | - Qinghua Zhang
- College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, China
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2
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Aloi E, Tone CM, Barberi RC, Ciuchi F, Bartucci R. Effects of curcumin in the interaction with cardiolipin-containg lipid monolayers and bilayers. Biophys Chem 2023; 301:107082. [PMID: 37544082 DOI: 10.1016/j.bpc.2023.107082] [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: 06/11/2023] [Revised: 07/21/2023] [Accepted: 07/30/2023] [Indexed: 08/08/2023]
Abstract
Curcumin, a plant polyphenol extracted from the Chinese herb turmeric, has gained widespread attention in recent years because of its multifunctional properties as antioxidant, antinflammatory, antimicrobial, and anticancer agent. Effects of the molecule on mitochondrial membranes properties have also been evidenced. In this work, the interaction of curcumin with models of mitochondrial membranes composed of dimyristoylphosphatidylcholine (DMPC) or mixtures of DMPC and 4 mol% tetramyristoylcardiolipin (TMCL) has been investigated by using biophysical techniques. Spectrophotometry and fluorescence allowed to determine the association constant and the binding energy of curcumin with pure DMPC and mixed DMPC/TMCL aqueous bilayers. The molecular organization of pure DMPC and cardiolipin-containing Langmuir monolayers at the air-water interface were investigated and the morphology of the monolayers transferred into mica substrates were characterized through atomic force microscopy (AFM). It is found that curcumin associates at the polar/apolar interface of the lipid bilayers and the binding is favored in the presence of cardiolipin. At 2 mol%, curcumin is well miscible with lipid monolayers, particularly with mixed DMPC/TMCL ones, where compact terraces formation characterized by a reduction of the surface roughness is observed in the AFM topographic images. At 10 mol%, curcumin perturbs the stability of DMPC monolayers and morphologically are evident terraces surrounded by cur aggregates. In the presence of TMCL, very few curcumin aggregates and larger compact terraces are observed. The overall results indicate that cardiolipin augments the incorporation of curcumin in model membranes highlighting the mutual interplay cardiolipin-curcumin in mitochondrial membranes.
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Affiliation(s)
- Erika Aloi
- Department of Physics, University of Calabria, 87036 Rende, Italy
| | - Caterina M Tone
- Department of Physics, University of Calabria, 87036 Rende, Italy; CNR Nanotec c/o Department of Physics, University of Calabria, 87036 Rende, Italy
| | - Riccardo C Barberi
- Department of Physics, University of Calabria, 87036 Rende, Italy; CNR Nanotec c/o Department of Physics, University of Calabria, 87036 Rende, Italy
| | - Federica Ciuchi
- CNR Nanotec c/o Department of Physics, University of Calabria, 87036 Rende, Italy.
| | - Rosa Bartucci
- Department of Chemistry and Chemical Technologies, University of Calabria, 87036 Rende, Italy.
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Cámara CI, Crosio MA, Juarez AV, Wilke N. Dexamethasone and Dexamethasone Phosphate: Effect on DMPC Membrane Models. Pharmaceutics 2023; 15:pharmaceutics15030844. [PMID: 36986705 PMCID: PMC10053563 DOI: 10.3390/pharmaceutics15030844] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2022] [Revised: 02/23/2023] [Accepted: 03/01/2023] [Indexed: 03/08/2023] Open
Abstract
Dexamethasone (Dex) and Dexamethasone phosphate (Dex-P) are synthetic glucocorticoids with high anti-inflammatory and immunosuppressive actions that gained visibility because they reduce the mortality in critical patients with COVID-19 connected to assisted breathing. They have been widely used for the treatment of several diseases and in patients under chronic treatments, thus, it is important to understand their interaction with membranes, the first barrier when these drugs get into the body. Here, the effect of Dex and Dex-P on dimyiristoylphophatidylcholine (DMPC) membranes were studied using Langmuir films and vesicles. Our results indicate that the presence of Dex in DMPC monolayers makes them more compressible and less reflective, induces the appearance of aggregates, and suppresses the Liquid Expanded/Liquid Condensed (LE/LC) phase transition. The phosphorylated drug, Dex-P, also induces the formation of aggregates in DMPC/Dex-P films, but without disturbing the LE/LC phase transition and reflectivity. Insertion experiments demonstrate that Dex induces larger changes in surface pressure than Dex-P, due to its higher hydrophobic character. Both drugs can penetrate membranes at high lipid packings. Vesicle shape fluctuation analysis shows that Dex-P adsorption on GUVs of DMPC decreases membrane deformability. In conclusion, both drugs can penetrate and alter the mechanical properties of DMPC membranes.
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Affiliation(s)
- Candelaria Ines Cámara
- Departamento de Fisicoquímica, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Córdoba X5000HUA, Argentina
- Instituto de Investigaciones en Fisicoquímica de Córdoba (INFIQC), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Córdoba X5000HUA, Argentina
- Correspondence: ; Tel.: +54-9-351-5353570
| | - Matías Ariel Crosio
- Departamento de Química Biológica Ranwel Caputto, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Córdoba X5000HUA, Argentina
- Centro de Investigaciones en Química Biológica de Córdoba (CIQUIBIC), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Córdoba X5000HUA, Argentina
| | - Ana Valeria Juarez
- Departamento de Fisicoquímica, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Córdoba X5000HUA, Argentina
- Instituto de Investigaciones en Fisicoquímica de Córdoba (INFIQC), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Córdoba X5000HUA, Argentina
| | - Natalia Wilke
- Departamento de Química Biológica Ranwel Caputto, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Córdoba X5000HUA, Argentina
- Centro de Investigaciones en Química Biológica de Córdoba (CIQUIBIC), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Córdoba X5000HUA, Argentina
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Dos Santos AG, Bayiha JC, Dufour G, Cataldo D, Evrard B, Silva LC, Deleu M, Mingeot-Leclercq MP. Changes in membrane biophysical properties induced by the Budesonide/Hydroxypropyl-β-cyclodextrin complex. BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES 2017. [PMID: 28642042 DOI: 10.1016/j.bbamem.2017.06.010] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Budesonide (BUD), a poorly soluble anti-inflammatory drug, is used to treat patients suffering from asthma and COPD (Chronic Obstructive Pulmonary Disease). Hydroxypropyl-β-cyclodextrin (HPβCD), a biocompatible cyclodextrin known to interact with cholesterol, is used as a drug-solubilizing agent in pharmaceutical formulations. Budesonide administered as an inclusion complex within HPβCD (BUD:HPβCD) required a quarter of the nominal dose of the suspension formulation and significantly reduced neutrophil-induced inflammation in a COPD mouse model exceeding the effect of each molecule administered individually. This suggests the role of lipid domains enriched in cholesterol for inflammatory signaling activation. In this context, we investigated the effect of BUD:HPβCD on the biophysical properties of membrane lipids. On cellular models (A549, lung epithelial cells), BUD:HPβCD extracted cholesterol similarly to HPβCD. On large unilamellar vesicles (LUVs), by using the fluorescent probes diphenylhexatriene (DPH) and calcein, we demonstrated an increase in membrane fluidity and permeability induced by BUD:HPβCD in vesicles containing cholesterol. On giant unilamellar vesicles (GUVs) and lipid monolayers, BUD:HPβCD induced the disruption of cholesterol-enriched raft-like liquid ordered domains as well as changes in lipid packing and lipid desorption from the cholesterol monolayers, respectively. Except for membrane fluidity, all these effects were enhanced when HPβCD was complexed with budesonide as compared with HPβCD. Since cholesterol-enriched domains have been linked to membrane signaling including pathways involved in inflammation processes, we hypothesized the effects of BUD:HPβCD could be partly mediated by changes in the biophysical properties of cholesterol-enriched domains.
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Affiliation(s)
- Andreia G Dos Santos
- Université catholique de Louvain, Louvain Drug Research Institute, Cellular and Molecular Pharmacology Unit, Avenue E. Mounier 73, B1.73.05, B-1200 Bruxelles, Belgium; Universidade de Lisboa, Faculdade de Farmácia, iMed.ULisboa - Research Institute for Medicines, Av. Prof. Gama Pinto, 1649-003 Lisboa, Portugal; Centro de Química-Física Molecular and Institute of Nanoscience and Nanotechnology, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal
| | - Jules César Bayiha
- Université catholique de Louvain, Louvain Drug Research Institute, Cellular and Molecular Pharmacology Unit, Avenue E. Mounier 73, B1.73.05, B-1200 Bruxelles, Belgium
| | - Gilles Dufour
- Université de Liège, CIRM, Laboratoire de Technologie Pharmaceutique et Biopharmacie, Avenue de l'Hôpital 3, B-4000 Liège, Belgium
| | - Didier Cataldo
- Université de Liège and CHU, Laboratory of Tumor & Development Biology (GIGA-Cancer), Avenue Hippocrate 13, B-4000 Liège, Belgium
| | - Brigitte Evrard
- Université de Liège, CIRM, Laboratoire de Technologie Pharmaceutique et Biopharmacie, Avenue de l'Hôpital 3, B-4000 Liège, Belgium
| | - Liana C Silva
- Universidade de Lisboa, Faculdade de Farmácia, iMed.ULisboa - Research Institute for Medicines, Av. Prof. Gama Pinto, 1649-003 Lisboa, Portugal; Centro de Química-Física Molecular and Institute of Nanoscience and Nanotechnology, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal
| | - Magali Deleu
- Université de Liège, Gembloux Agro Bio-Tech, Laboratoire de Biophysique Moléculaire aux Interfaces, Passage des Déportés, 2, B-5030 Gembloux, Belgium
| | - Marie-Paule Mingeot-Leclercq
- Université catholique de Louvain, Louvain Drug Research Institute, Cellular and Molecular Pharmacology Unit, Avenue E. Mounier 73, B1.73.05, B-1200 Bruxelles, Belgium.
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5
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Leclercq L. Interactions between cyclodextrins and cellular components: Towards greener medical applications? Beilstein J Org Chem 2016; 12:2644-2662. [PMID: 28144335 PMCID: PMC5238526 DOI: 10.3762/bjoc.12.261] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2016] [Accepted: 11/25/2016] [Indexed: 11/23/2022] Open
Abstract
In the field of host-guest chemistry, some of the most widely used hosts are probably cyclodextrins (CDs). As CDs are able to increase the water solubility of numerous drugs by inclusion into their hydrophobic cavity, they have been widespread used to develop numerous pharmaceutical formulations. Nevertheless, CDs are also able to interact with endogenous substances that originate from an organism, tissue or cell. These interactions can be useful for a vast array of topics including cholesterol manipulation, treatment of Alzheimer's disease, control of pathogens, etc. In addition, the use of natural CDs offers the great advantage of avoiding or reducing the use of common petroleum-sourced drugs. In this paper, the general features and applications of CDs have been reviewed as well as their interactions with isolated biomolecules leading to the formation of inclusion or exclusion complexes. Finally, some potential medical applications are highlighted throughout several examples.
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Affiliation(s)
- Loïc Leclercq
- Univ. Lille, CNRS, ENSCL, UMR 8181 – UCCS - Equipe CÏSCO, F-59000 Lille, France
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Hernandez-Pascacio J, Piñeiro Á, Ruso JM, Hassan N, Campbell RA, Campos-Terán J, Costas M. Complex Behavior of Aqueous α-Cyclodextrin Solutions. Interfacial Morphologies Resulting from Bulk Aggregation. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2016; 32:6682-6690. [PMID: 27299803 DOI: 10.1021/acs.langmuir.6b01646] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
The spontaneous aggregation of α-cyclodextrin (α-CD) molecules in the bulk aqueous solution and the interactions of the resulting aggregates at the liquid/air interface have been studied at 283 K using a battery of techniques: transmission electron microscopy, dynamic light scattering, dynamic surface tensiometry, Brewster angle microscopy, neutron reflectometry, and ellipsometry. We show that α-CD molecules spontaneously form aggregates in the bulk that grow in size with time. These aggregates adsorb to the liquid/air interface with their size in the bulk determining the adsorption rate. The material that reaches the interface coalesces laterally to form two-dimensional domains on the micrometer scale with a layer thickness on the nanometer scale. These processes are affected by the ages of both the bulk and the interface. The interfacial layer formed is not in fast dynamic equilibrium with the subphase as the resulting morphology is locked in a kinetically trapped state. These results reveal a surprising complexity of the parallel physical processes taking place in the bulk and at the interface of what might have seemed initially like a simple system.
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Affiliation(s)
- Jorge Hernandez-Pascacio
- Laboratorio de Biofisicoquímica, Departamento de Fisicoquímica, Facultad de Química, Universidad Nacional Autónoma de México , México D. F. 04510, Mexico
| | - Ángel Piñeiro
- Soft Matter and Molecular Biophysics Group, Department of Applied Physics, University of Santiago de Compostela , Santiago de Compostela 15782, Spain
| | - Juan M Ruso
- Soft Matter and Molecular Biophysics Group, Department of Applied Physics, University of Santiago de Compostela , Santiago de Compostela 15782, Spain
| | - Natalia Hassan
- Soft Matter and Molecular Biophysics Group, Department of Applied Physics, University of Santiago de Compostela , Santiago de Compostela 15782, Spain
| | - Richard A Campbell
- Institut Laue-Langevin , 71 avenue des Martyrs, CS 20156, 38042 Grenoble, Cedex 9, France
| | - José Campos-Terán
- Departamento de Procesos y Tecnología, Universidad Autónoma Metropolitana , Unidad Cuajimalpa, Av. Vasco de Quiroga 4871, Col. Santa Fe, Delegación Cuajimalpa de Morelos 05348, Mexico
| | - Miguel Costas
- Laboratorio de Biofisicoquímica, Departamento de Fisicoquímica, Facultad de Química, Universidad Nacional Autónoma de México , México D. F. 04510, Mexico
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8
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Mandal P, Noutsi P, Chaieb S. Cholesterol Depletion from a Ceramide/Cholesterol Mixed Monolayer: A Brewster Angle Microscope Study. Sci Rep 2016; 6:26907. [PMID: 27245215 PMCID: PMC4887913 DOI: 10.1038/srep26907] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2016] [Accepted: 05/11/2016] [Indexed: 01/08/2023] Open
Abstract
Cholesterol is crucial to the mechanical properties of cell membranes that are important to cells' behavior. Its depletion from the cell membranes could be dramatic. Among cyclodextrins (CDs), methyl beta cyclodextrin (MβCD) is the most efficient to deplete cholesterol (Chol) from biomembranes. Here, we focus on the depletion of cholesterol from a C16 ceramide/cholesterol (C16-Cer/Chol) mixed monolayer using MβCD. While the removal of cholesterol by MβCD depends on the cholesterol concentration in most mixed lipid monolayers, it does not depend very much on the concentration of cholesterol in C16-Cer/Chol monolayers. The surface pressure decay during depletion were described by a stretched exponential that suggested that the cholesterol molecules are unable to diffuse laterally and behave like static traps for the MβCD molecules. Cholesterol depletion causes morphology changes of domains but these disrupted monolayers domains seem to reform even when cholesterol level was low.
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Affiliation(s)
- Pritam Mandal
- Biological and Environmental Science and Engineering, KAUST, Thuwal, 23955, KSA
| | - Pakiza Noutsi
- Biological and Environmental Science and Engineering, KAUST, Thuwal, 23955, KSA
| | - Sahraoui Chaieb
- Biological and Environmental Science and Engineering, KAUST, Thuwal, 23955, KSA
- Lawrence Berkeley National Laboratory, 1 cyclotron road, Mailstop 6R-2100, Berkeley, CA-94720, USA
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Alayande AB, Kim LH, Kim IS. Cleaning efficacy of hydroxypropyl-beta-cyclodextrin for biofouling reduction on reverse osmosis membranes. BIOFOULING 2016; 32:359-370. [PMID: 26923225 DOI: 10.1080/08927014.2016.1151008] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
In this study, an environmentally friendly compound, hydroxypropyl-beta-cyclodextrin (HP-β-CD) was applied to clean reverse osmosis (RO) membranes fouled by microorganisms. The cleaning with HP-β-CD removed the biofilm and resulted in a flux recovery ratio (FRR) of 102%. As cleaning efficiency is sometimes difficult to determine using flux recovery data alone, attached bacterial cells and extracellular polymeric substances (EPS) were quantified after cleaning the biofouled membrane with HP-β-CD. Membrane surface characterization using scanning electron microscopy (SEM), attenuated total reflectance Fourier transform infrared (ATR-FTIR) and atomic force microscopy (AFM) confirmed the effectiveness of HP-β-CD in removal of biofilm from the RO membrane surface. Finally, a comparative study was performed to investigate the competitiveness of HP-β-CD with other known cleaning agents such as sodium dodecyl sulfate (SDS), ethylenediaminetetraacetic acid (EDTA), Tween 20, rhamnolipid, nisin, and surfactin. In all cases, HP-β-CD was superior.
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Affiliation(s)
- Abayomi Babatunde Alayande
- a Global Desalination Research Center (GDRC), School of Environmental Science and Engineering , Gwangju Institute of Science and Technology (GIST) , Gwangju , Republic of Korea
| | - Lan Hee Kim
- a Global Desalination Research Center (GDRC), School of Environmental Science and Engineering , Gwangju Institute of Science and Technology (GIST) , Gwangju , Republic of Korea
| | - In S Kim
- a Global Desalination Research Center (GDRC), School of Environmental Science and Engineering , Gwangju Institute of Science and Technology (GIST) , Gwangju , Republic of Korea
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Joset A, Grammenos A, Hoebeke M, Leyh B. Small-Angle Neutron Scattering investigation of cholesterol-doped DMPC liposomes interacting with β-cyclodextrin. J INCL PHENOM MACRO 2015. [DOI: 10.1007/s10847-015-0592-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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Joset A, Grammenos A, Hoebeke M, Leyh B. Investigation of the interaction between a β-cyclodextrin and DMPC liposomes: a small angle neutron scattering study. J INCL PHENOM MACRO 2015. [DOI: 10.1007/s10847-015-0558-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Khuntawee W, Wolschann P, Rungrotmongkol T, Wong-ekkabut J, Hannongbua S. Molecular Dynamics Simulations of the Interaction of Beta Cyclodextrin with a Lipid Bilayer. J Chem Inf Model 2015; 55:1894-902. [DOI: 10.1021/acs.jcim.5b00152] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
| | - Peter Wolschann
- Department
of Pharmaceutical Technology and Biopharmaceutics, University of Vienna, 14 Althan Straße 14, Vienna 1090, Austria
- Institute
of Theoretical Chemistry, University of Vienna, Währinger
Straße 17, Vienna 1090, Austria
| | | | - Jirasak Wong-ekkabut
- Department
of Physics, Faculty of Science, Kasetsart University, 50 Phahon
Yothin Road, Chatuchak, Bangkok 10900, Thailand
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Ghosh S, Ghosh C, Nandi S, Bhattacharyya K. Unfolding and refolding of a protein by cholesterol and cyclodextrin: a single molecule study. Phys Chem Chem Phys 2015; 17:8017-27. [DOI: 10.1039/c5cp00385g] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Cholesterol induced unfolding of a globular protein, human serum albumin (HSA), and β-cyclodextrin induced refolding of the unfolded protein is demonstrated in this study.
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Affiliation(s)
- Shirsendu Ghosh
- Department of Physical Chemistry
- Indian Association For The cultivation of Science
- Kolkata 700 032
- India
| | - Catherine Ghosh
- Department of Physical Chemistry
- Indian Association For The cultivation of Science
- Kolkata 700 032
- India
| | - Somen Nandi
- Department of Physical Chemistry
- Indian Association For The cultivation of Science
- Kolkata 700 032
- India
| | - Kankan Bhattacharyya
- Department of Physical Chemistry
- Indian Association For The cultivation of Science
- Kolkata 700 032
- India
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14
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Méndez-Ardoy A, Steentjes T, Kudernac T, Huskens J. Self-assembled monolayers on gold of β-cyclodextrin adsorbates with different anchoring groups. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2014; 30:3467-3476. [PMID: 24593300 DOI: 10.1021/la500172a] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
We designed multivalent β-cyclodextrin-based adsorbates bearing different anchoring groups aiming to yield stable monolayers with improved packing and close contact of the cavity to the gold surface. Toward this end the primary rim of the β-cyclodextrin was decorated with several functional groups, namely iodide, nitrile, amine, isothiocyanate, methyl sulfide, and isocyanide. Monolayers formed by these adsorbates were characterized by contact angle measurements, surface plasmon resonance spectroscopy, polarization modulation infrared reflection adsorption spectroscopy, X-ray photoelectron spectroscopy, and electrochemistry. The nature of the anchoring group influenced the adsorption kinetics, thickness, layer stability, number of anchoring groups bounded to the surface, and packing in the resulting monolayers. Therefore, chemical manipulation of multivalent adsorbates can be used to modify the properties of their monolayers.
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Affiliation(s)
- Alejandro Méndez-Ardoy
- Molecular Nanofabrication Group, MESA+ Institute for Nanotechnology, University of Twente , P.O. Box 217, 7500 AE Enschede, The Netherlands
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15
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Olubummo A, Schulz M, Schöps R, Kressler J, Binder WH. Phase changes in mixed lipid/polymer membranes by multivalent nanoparticle recognition. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2014; 30:259-267. [PMID: 24359326 DOI: 10.1021/la403763v] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Selective addressing of membrane components in complex membrane mixtures is important for many biological processes. The present paper investigates the recognition between multivalent surface functionalized nanoparticles (NPs) and amphiphilic block copolymers (BCPs), which are successfully incorporated into lipid membranes. The concept involves the supramolecular recognition between hybrid membranes (composed of a mixture of a lipid (DPPC or DOPC), an amphiphilic triazine-functionalized block copolymer TRI-PEO13-b-PIB83 (BCP 2), and nonfunctionalized BCPs (PEO17-b-PIB87 BCP 1)) with multivalent (water-soluble) nanoparticles able to recognize the triazine end group of the BCP 2 at the membrane surface via supramolecular hydrogen bonds. CdSe-NPs bearing long PEO47-thymine (THY) polymer chains on their surface specifically interacted with the 2,4-diaminotriazine (TRI) moiety of BCP 2 embedded within hybrid lipid/BCP mono- or bilayers. Experiments with GUVs from a mixture of DPPC/BCP 2 confirm selective supramolecular recognition between the THY-functionalized NPs and the TRI-functionalized polymers, finally resulting in the selective removal of BCP 2 from the hybrid vesicle membrane as proven via facetation of the originally round and smooth vesicles. GUVs (composed of DOPC/BCP 2) show that a selective removal of the polymer component from the fluid hybrid membrane results in destruction of hybrid vesicles via membrane rupture. Adsorption experiments with mixed monolayers from lipids with either BCP 2 or BCP 1 (nonfunctionalized) reveal that the THY-functionalized NPs specifically recognize BCP 2 at the air/water interface by inducing significantly higher changes in the surface pressure when compared to monolayers from nonspecifically interacting lipid/BCP 1 mixtures. Thus, recognition of multivalent NPs with specific membrane components of hybrid lipid/BCP mono- and bilayers proves the selective removal of BCPs from mixed membranes, in turn inducing membrane rupture. Such recognition events display high potential in controlling permeability and fluidity of membranes (e.g., in pharmaceutics).
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Affiliation(s)
- Adekunle Olubummo
- Chair of Macromolecular Chemistry, Faculty of Natural Sciences II (Chemistry, Physics and Mathematics), Institute of Chemistry, Martin-Luther University Halle-Wittenberg , D-06120 Halle (Saale), Germany
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López CA, de Vries AH, Marrink SJ. Computational microscopy of cyclodextrin mediated cholesterol extraction from lipid model membranes. Sci Rep 2013; 3:2071. [PMID: 23797782 PMCID: PMC3691568 DOI: 10.1038/srep02071] [Citation(s) in RCA: 95] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2013] [Accepted: 06/06/2013] [Indexed: 11/09/2022] Open
Abstract
Beta-cyclodextrins (β-CDs) can form inclusion complexes with cholesterol, and are commonly used to manipulate cholesterol levels of biomembranes. In this work, we have used multiscale molecular dynamics simulations to provide a detailed view on the interaction between β-CDs and lipid model membranes. We show that cholesterol can be extracted efficiently upon adsorption of β-CD dimers at the membrane/water interface. However, extraction is only observed to occur spontaneously in membranes with high cholesterol levels. Free energy calculations reveal the presence of a kinetic barrier for cholesterol extraction in the case of low cholesterol content. Cholesterol uptake is facilitated in case of (poly)unsaturated lipid membranes, which increases the free energy of the membrane bound state of cholesterol. Comparing lipid/cholesterol compositions typical of liquid-disordered (L(d)) and liquid-order (L(o)) domains, we furthermore show that cholesterol is preferentially extracted from the disordered regions, in line with recent experimental data.
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Affiliation(s)
- Cesar A López
- Groningen Biomolecular Sciences and Biotechnology Institute and Zernike Institute for Advanced Materials, University of Groningen, Nijenborgh 7, 9747 AG Groningen, The Netherlands
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Nasir MN, Besson F. Specific interactions of mycosubtilin with cholesterol-containing artificial membranes. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2011; 27:10785-10792. [PMID: 21766869 DOI: 10.1021/la200767e] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Mycosubtilin is a natural antimicrobial lipopeptide produced by Bacillus subtilis strains. It is characterized by its hemolytic and strong antifungal activities. Mycosubtilin interacts with the plasma membranes of sensitive cells. However, the molecular mechanisms of its biological activities have not been completely elucidated. Our purpose was therefore to analyze the interactions of mycosubtilin with biological membranes by using biomimetic membranes such as Langmuir monolayers and multilayers. Structural changes of mycosubtilin, involving its peptide backbone and the side chain of its tyrosyl residue, were observed when the lipopeptide was interacting with cholesterol-containing multilayers. The interactions of mycosubtilin with monolayers constituted by pure lipids and by phosholipid/cholesterol or phospholipid/sphingomyelin/cholesterol were also examined. An original behavior of mycosubtilin toward cholesterol-containing monolayers was found. However, this original behavior was lost when mycosubtilin was interacting with pure cholesterylacetate monolayers. This suggests the involvement of the alcohol group of cholesterol in mycosubtilin-cholesterol interactions within membranes. Moreover, mycosubtilin induced changes in the organization and morphology of cholesterol-containing monolayers, and large condensed domains with different levels of condensation appeared only in the case of DPPC/sphingomyelin/cholesterol monolayer.
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López CA, de Vries AH, Marrink SJ. Molecular mechanism of cyclodextrin mediated cholesterol extraction. PLoS Comput Biol 2011; 7:e1002020. [PMID: 21455285 PMCID: PMC3063748 DOI: 10.1371/journal.pcbi.1002020] [Citation(s) in RCA: 146] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2010] [Accepted: 02/03/2011] [Indexed: 11/19/2022] Open
Abstract
The depletion of cholesterol from membranes, mediated by β-cyclodextrin (β-CD) is well known and documented, but the molecular details of this process are largely unknown. Using molecular dynamics simulations, we have been able to study the CD mediated extraction of cholesterol from model membranes, in particular from a pure cholesterol monolayer, at atomic resolution. Our results show that efficient cholesterol extraction depends on the structural distribution of the CDs on the surface of the monolayer. With a suitably oriented dimer, cholesterol is extracted spontaneously on a nanosecond time scale. Additional free energy calculations reveal that the CDs have a strong affinity to bind to the membrane surface, and, by doing so, destabilize the local packing of cholesterol molecules making their extraction favorable. Our results have implications for the interpretation of experimental measurements, and may help in the rational design of efficient CD based nano-carriers. The ability of certain molecules to capture other molecules forming so-called inclusion complexes has a range of potential important applications in e.g. drug delivery and chemical sensing. Here we study the complexation of cholesterol by small oligosaccharide rings named cyclodextrins (CDs). Cholesterol is an essential lipid in the plasma cell membrane, and the ability of CDs to extract cholesterol is widely used in the biomedical field to control the level of cholesterol in the membrane. The molecular mechanism of this process, however, is still not resolved. Using a detailed computational model of cholesterol and CD, we have succeeded to simulate this extraction process. We observe that the CDs are rapidly binding to the membrane surface in a dimeric form, and, provided that the CD dimers are in a suitable orientation, cholesterol molecules are being extracted spontaneously. The cholesterol/CD inclusion complex remains adsorbed on the surface; our simulations predict that the rate limiting step for the actual transport of cholesterol is the desorption of the complex from the membrane. With a clearer understanding of the basic molecular mechanism of the CD mediated process of cholesterol extraction, we can begin to rationalize the design of more efficient CDs in numerous applications.
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Affiliation(s)
- Cesar A. López
- Groningen Biomolecular Sciences and Biotechnology Institute & Zernike Institute for Advanced Materials, University of Groningen, Groningen, The Netherlands
| | - Alex H. de Vries
- Groningen Biomolecular Sciences and Biotechnology Institute & Zernike Institute for Advanced Materials, University of Groningen, Groningen, The Netherlands
| | - Siewert J. Marrink
- Groningen Biomolecular Sciences and Biotechnology Institute & Zernike Institute for Advanced Materials, University of Groningen, Groningen, The Netherlands
- * E-mail:
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1H NMR investigation of supramolecular complex between β-cyclodextrin and cholesterol. ACTA ACUST UNITED AC 2011. [DOI: 10.1007/s11859-011-0715-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Jablin MS, Flasiński M, Dubey M, Ratnaweera DR, Broniatowski M, Dynarowicz-Łatka P, Majewski J. Effects of beta-cyclodextrin on the structure of sphingomyelin/cholesterol model membranes. Biophys J 2010; 99:1475-81. [PMID: 20816059 DOI: 10.1016/j.bpj.2010.06.028] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2010] [Revised: 06/10/2010] [Accepted: 06/14/2010] [Indexed: 11/15/2022] Open
Abstract
The interaction of beta-cyclodextrin (beta-CD) with mixed bilayers composed of sphingomylein and cholesterol (Chol) above and below the accepted stable complexation ratio (67:33) was investigated. Membranes with the same (symmetric) and different (asymmetric) compositions in their inner and outer leaflets were deposited at surface pressures of 20, 30, and 40 mN/m at the solid-liquid interface. Using neutron reflectometry, membranes of various global molar ratios (defined as the sum of the molar ratios of the inner and outer leaflets), were characterized before and after beta-CD was added to the subphase. The structure of bilayers with global molar ratios at or above the stable complexation ratio was unchanged by beta-CD, indicating that beta-CD is unable to remove sphingomyelin or complexed Chol. However, beta-CD removed all uncomplexed Chol from bilayers composed of global molar ratios below the stable complexation ratio. The removal of Chol by beta-CD was independent of the initial structure of the membranes as deposited, suggesting that asymmetric membranes homogenize by the exchange of molecules between leaflets. The interaction of beta-CD with the aforementioned membranes was independent of the deposition surface pressure except for a symmetric 50:50 membrane deposited at 40 mN/m. The scattering from 50:50 bilayers with higher packing densities (deposited at 40 mN/m) was unaffected by beta-CD, suggesting that the removal of Chol can depend on both the composition and packing density of the membrane.
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Affiliation(s)
- Michael S Jablin
- Lujan Neutron Scattering Center, Los Alamos National Laboratory, Los Alamos, New Mexico, USA
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Flasiński M, Broniatowski M, Majewski J, Dynarowicz-Łątka P. X-ray grazing incidence diffraction and Langmuir monolayer studies of the interaction of β-cyclodextrin with model lipid membranes. J Colloid Interface Sci 2010; 348:511-21. [DOI: 10.1016/j.jcis.2010.04.086] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2010] [Revised: 04/28/2010] [Accepted: 04/29/2010] [Indexed: 11/16/2022]
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Vico RV, de Rossi RH, Maggio B. PM-IRRAS assessment of the compression-mediated orientation of the nanocavity of a monoacylated beta-cyclodextrin in monolayers at the air-water interface. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2010; 26:8407-8413. [PMID: 20205408 DOI: 10.1021/la904852j] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
The structural orientation adopted along the compression-decompression isotherm by a monoacylated beta-cyclodextrin (C16-betaCD) at the air-water interface was assessed by polarization-modulation infrared reflection-adsorption spectroscopy (PM-IRRAS). The adoption of different orientations of the cyclic oligosaccharide unit, relative to the interfacial plane, was interpreted analyzing the PM-IRRAS band intensity ratios of specific vibrations corresponding to the cyclodextrin moiety as a function of the surface pressure for successive compression/decompression cycles. The spectroscopic analysis revealed that the cyclic oligosaccharide modifies its position under compression from one in which the plane of the cavity of the monoacylated beta-cyclodextrin lies almost parallel to the interface to another in which the plane of the cavity is perpendicular to the interface. Through the PM-IRRAS analysis, it was also possible to evidence the establishment of an intermolecular hydrogen bonding network that may play an important role in the dynamic properties of the monolayer packing. The hydrogen bonding network becomes more important with the increases of surface pressure, up to a molecular packing limit, and it imparts the surface properties of the film for future compression-decompression cycles.
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Affiliation(s)
- Raquel V Vico
- Centro de Investigaciones en Quimica Biológica de Córdoba (CIQUIBIC-UNC-CONICET), Departamento de Química Biológica, Universidad Nacional de Córdoba, Haya de la Torre y Medina Allende, Ciudad Universitaria, X5000HUA, Córdoba, Argentina.
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Feng S, Ren Z, Wei Y, Jiang B, Liu Y, Zhang L, Zhang W, Fu H. Synthesis and application of hollow magnetic graphitic carbon microspheres with/without TiO2 nanoparticle layer on the surface. Chem Commun (Camb) 2010; 46:6276-8. [DOI: 10.1039/c0cc01498b] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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25
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Liu JH, Chiu YH, Chiu TH. Fabrication and Characterization of Self-Assembled β-Cyclodextrin Threaded Monomers and Induced Helical Polymers. Macromolecules 2009. [DOI: 10.1021/ma900406f] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jui-Hsiang Liu
- Department of Chemical Engineering, National Cheng Kung University, Tainan, Taiwan 70101
| | - Yi-Hong Chiu
- Department of Chemical Engineering, National Cheng Kung University, Tainan, Taiwan 70101
| | - Tai-Hsiang Chiu
- Department of Chemical Engineering, National Cheng Kung University, Tainan, Taiwan 70101
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