1
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Karaz S, Senses E. Liposomes Under Shear: Structure, Dynamics, and Drug Delivery Applications. ADVANCED NANOBIOMED RESEARCH 2023. [DOI: 10.1002/anbr.202200101] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Affiliation(s)
- Selcan Karaz
- Department of Chemical and Biological Engineering Koç University Istanbul 34450 Turkey
| | - Erkan Senses
- Department of Chemical and Biological Engineering Koç University Istanbul 34450 Turkey
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2
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Udyavara Nagaraj V, Juhász T, Quemé-Peña M, Szigyártó IC, Bogdán D, Wacha A, Mihály J, Románszki L, Varga Z, Andréasson J, Mándity I, Beke-Somfai T. Stimuli-Responsive Membrane Anchor Peptide Nanofoils for Tunable Membrane Association and Lipid Bilayer Fusion. ACS APPLIED MATERIALS & INTERFACES 2022; 14:55320-55331. [PMID: 36473125 PMCID: PMC9782321 DOI: 10.1021/acsami.2c11946] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/05/2022] [Accepted: 11/22/2022] [Indexed: 06/07/2023]
Abstract
Self-assembled peptide nanostructures with stimuli-responsive features are promising as functional materials. Despite extensive research efforts, water-soluble supramolecular constructs that can interact with lipid membranes in a controllable way are still challenging to achieve. Here, we have employed a short membrane anchor protein motif (GLFD) and coupled it to a spiropyran photoswitch. Under physiological conditions, these conjugates assemble into ∼3.5 nm thick, foil-like peptide bilayer morphologies. Photoisomerization from the closed spiro (SP) form to the open merocyanine (MC) form of the photoswitch triggers rearrangements within the foils. This results in substantial changes in their membrane-binding properties, which also varies sensitively to lipid composition, ranging from reversible nanofoil reformation to stepwise membrane adsorption. The formed peptide layers in the assembly are also able to attach to various liposomes with different surface charges, enabling the fusion of their lipid bilayers. Here, SP-to-MC conversion can be used both to trigger and to modulate the liposome fusion efficiency.
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Affiliation(s)
- Vignesh Udyavara Nagaraj
- Institute
of Materials and Environmental Chemistry, Research Centre for Natural Sciences, BudapestH-1117, Hungary
- Hevesy
György Ph.D. School of Chemistry, Eötvös Loránd University, BudapestH-1117, Hungary
| | - Tünde Juhász
- Institute
of Materials and Environmental Chemistry, Research Centre for Natural Sciences, BudapestH-1117, Hungary
| | - Mayra Quemé-Peña
- Institute
of Materials and Environmental Chemistry, Research Centre for Natural Sciences, BudapestH-1117, Hungary
- Hevesy
György Ph.D. School of Chemistry, Eötvös Loránd University, BudapestH-1117, Hungary
| | - Imola Cs. Szigyártó
- Institute
of Materials and Environmental Chemistry, Research Centre for Natural Sciences, BudapestH-1117, Hungary
| | - Dóra Bogdán
- Institute
of Materials and Environmental Chemistry, Research Centre for Natural Sciences, BudapestH-1117, Hungary
- Department
of Organic Chemistry, Faculty of Pharmacy, Semmelweis University, BudapestH-1092, Hungary
| | - András Wacha
- Institute
of Materials and Environmental Chemistry, Research Centre for Natural Sciences, BudapestH-1117, Hungary
| | - Judith Mihály
- Institute
of Materials and Environmental Chemistry, Research Centre for Natural Sciences, BudapestH-1117, Hungary
| | - Loránd Románszki
- Institute
of Materials and Environmental Chemistry, Research Centre for Natural Sciences, BudapestH-1117, Hungary
| | - Zoltán Varga
- Institute
of Materials and Environmental Chemistry, Research Centre for Natural Sciences, BudapestH-1117, Hungary
| | - Joakim Andréasson
- Department
of Chemistry and Chemical Engineering, Physical Chemistry, Chalmers University of Technology, GothenburgSE-412 96, Sweden
| | - István Mándity
- Institute
of Materials and Environmental Chemistry, Research Centre for Natural Sciences, BudapestH-1117, Hungary
- Department
of Organic Chemistry, Faculty of Pharmacy, Semmelweis University, BudapestH-1092, Hungary
| | - Tamás Beke-Somfai
- Institute
of Materials and Environmental Chemistry, Research Centre for Natural Sciences, BudapestH-1117, Hungary
- Department
of Chemistry and Chemical Engineering, Physical Chemistry, Chalmers University of Technology, GothenburgSE-412 96, Sweden
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3
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Lima B, Ricci M, Garro A, Juhász T, Szigyártó IC, Papp ZI, Feresin G, Garcia de la Torre J, Lopez Cascales J, Fülöp L, Beke-Somfai T, Enriz RD. New short cationic antibacterial peptides. Synthesis, biological activity and mechanism of action. BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES 2021; 1863:183665. [PMID: 34097861 DOI: 10.1016/j.bbamem.2021.183665] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 02/03/2021] [Revised: 05/07/2021] [Accepted: 06/01/2021] [Indexed: 11/28/2022]
Abstract
We report a theoretical and experimental study on a new series of small-sized antibacterial peptides. Synthesis and bioassays for these peptides are reported here. In addition, we evaluated different physicochemical parameters that modulate antimicrobial activity (charge, secondary structure, amphipathicity, hydrophobicity and polarity). We also performed molecular dynamic simulations to assess the interaction between these peptides and their molecular target (the membrane). Biophysical characterization of the peptides was carried out with different techniques, such as circular dichroism (CD), linear dichroism (LD), infrared spectroscopy (IR), dynamic light scattering (DLS), fluorescence spectroscopy and TEM studies using model systems (liposomes) for mammalian and bacterial membranes. The results of this study allow us to draw important conclusions on three different aspects. Theoretical and experimental results indicate that small-sized peptides have a particular mechanism of action that is different to that of large peptides. These results provide additional support for a previously proposed four-step mechanism of action. The possible pharmacophoric requirement for these small-sized peptides is discussed. Furthermore, our results indicate that a net +4 charge is the adequate for 9 amino acid long peptides to produce antibacterial activity. The information reported here is very important for designing new antibacterial peptides with these structural characteristics.
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Affiliation(s)
- Beatriz Lima
- Instituto de Biotecnología, Universidad Nacional de San Juan, Av. Libertador General San Martín 1109 (O), CP 5400 San Juan, Argentina
| | - Maria Ricci
- Research Centre for Natural Sciences, Institute of Materials and Environmental Chemistry, H-1117 Budapest, Hungary
| | - Adriana Garro
- Facultad de Química, Bioquímica y Farmacia, Universidad Nacional de San Luis, Instituto Multidisciplinario de Investigaciones Biológicas (IMIBIO-SL), Chacabuco 915, 5700 San Luis, Argentina
| | - Tünde Juhász
- Research Centre for Natural Sciences, Institute of Materials and Environmental Chemistry, H-1117 Budapest, Hungary
| | - Imola Csilla Szigyártó
- Research Centre for Natural Sciences, Institute of Materials and Environmental Chemistry, H-1117 Budapest, Hungary
| | - Zita I Papp
- Department of Medical Chemistry, University of Szeged, H-6720 Szeged, Dóm tér 8, Hungary
| | - Gabriela Feresin
- Instituto de Biotecnología, Universidad Nacional de San Juan, Av. Libertador General San Martín 1109 (O), CP 5400 San Juan, Argentina
| | - Jose Garcia de la Torre
- Facultad de Química, Departamento de Química Física, Universidad de Murcia, Campus de Espinardo, 30100 Espinardo, Murcia, Spain
| | - Javier Lopez Cascales
- Grupo de Bioinformática y Macromoléculas (BioMac), Área de Química Física, Universidad Politécnica de Cartagena, Aulario II, ́ Campus de Alfonso XIII, 30203 Cartagena, Murcia, Spain
| | - Lívia Fülöp
- Department of Medical Chemistry, University of Szeged, H-6720 Szeged, Dóm tér 8, Hungary.
| | - Tamás Beke-Somfai
- Research Centre for Natural Sciences, Institute of Materials and Environmental Chemistry, H-1117 Budapest, Hungary.
| | - Ricardo D Enriz
- Facultad de Química, Bioquímica y Farmacia, Universidad Nacional de San Luis, Instituto Multidisciplinario de Investigaciones Biológicas (IMIBIO-SL), Chacabuco 915, 5700 San Luis, Argentina.
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4
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Singh P, Szigyártó IC, Ricci M, Zsila F, Juhász T, Mihály J, Bősze S, Bulyáki É, Kardos J, Kitka D, Varga Z, Beke-Somfai T. Membrane Active Peptides Remove Surface Adsorbed Protein Corona From Extracellular Vesicles of Red Blood Cells. Front Chem 2020; 8:703. [PMID: 32850685 PMCID: PMC7432246 DOI: 10.3389/fchem.2020.00703] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2020] [Accepted: 07/07/2020] [Indexed: 12/27/2022] Open
Abstract
Besides the outstanding potential in biomedical applications, extracellular vesicles (EVs) are also promising candidates to expand our knowledge on interactions between vesicular surface proteins and small-molecules which exert biomembrane-related functions. Here we provide mechanistic details on interactions between membrane active peptides with antimicrobial effect (MAPs) and red blood cell derived EVs (REVs) and we demonstrate that they have the capacity to remove members of the protein corona from REVs even at lower than 5 μM concentrations. In case of REVs, the Soret-band arising from the membrane associated hemoglobins allowed to follow the detachment process by flow-Linear Dichroism (flow-LD). Further on, the significant change on the vesicle surfaces was confirmed by transmission electron microscopy (TEM). Since membrane active peptides, such as melittin have the affinity to disrupt vesicles, a combination of techniques, fluorescent antibody labeling, microfluidic resistive pulse sensing, and flow-LD were employed to distinguish between membrane destruction and surface protein detachment. The removal of protein corona members is a newly identified role for the investigated peptides, which indicates complexity of their in vivo function, but may also be exploited in synthetic and natural nanoparticle engineering. Furthermore, results also promote that EVs can be used as improved model systems for biophysical studies providing insight to areas with so far limited knowledge.
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Affiliation(s)
- Priyanka Singh
- Institute of Materials and Environmental Chemistry, Research Centre for Natural Sciences, Budapest, Hungary
| | - Imola Cs Szigyártó
- Institute of Materials and Environmental Chemistry, Research Centre for Natural Sciences, Budapest, Hungary
| | - Maria Ricci
- Institute of Materials and Environmental Chemistry, Research Centre for Natural Sciences, Budapest, Hungary
| | - Ferenc Zsila
- Institute of Materials and Environmental Chemistry, Research Centre for Natural Sciences, Budapest, Hungary
| | - Tünde Juhász
- Institute of Materials and Environmental Chemistry, Research Centre for Natural Sciences, Budapest, Hungary
| | - Judith Mihály
- Institute of Materials and Environmental Chemistry, Research Centre for Natural Sciences, Budapest, Hungary
| | - Szilvia Bősze
- MTA-ELTE Research Group of Peptide Chemistry, Eötvös Loránd University, Budapest, Hungary
| | - Éva Bulyáki
- Department of Biochemistry, Institute of Biology, Eötvös Loránd University, Budapest, Hungary
| | - József Kardos
- Department of Biochemistry, Institute of Biology, Eötvös Loránd University, Budapest, Hungary
| | - Diána Kitka
- Institute of Materials and Environmental Chemistry, Research Centre for Natural Sciences, Budapest, Hungary
| | - Zoltán Varga
- Institute of Materials and Environmental Chemistry, Research Centre for Natural Sciences, Budapest, Hungary
| | - Tamás Beke-Somfai
- Institute of Materials and Environmental Chemistry, Research Centre for Natural Sciences, Budapest, Hungary
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5
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Chen ZJ, Yang SC, Liu XL, Gao Y, Dong X, Lai X, Zhu MH, Feng HY, Zhu XD, Lu Q, Zhao M, Chen HZ, Lovell JF, Fang C. Nanobowl-Supported Liposomes Improve Drug Loading and Delivery. NANO LETTERS 2020; 20:4177-4187. [PMID: 32431154 DOI: 10.1021/acs.nanolett.0c00495] [Citation(s) in RCA: 63] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Liposomal drug delivery for cancer therapy can be limited due to drug leakage in circulation. Here, we develop a new method to enhance the stability of actively loaded liposomal doxorubicin (DOX) through embedding a stiff nanobowl in the liposomal water cavity. Nanobowl-supported liposomal DOX (DOX@NbLipo) resists the influence of plasma protein and blood flow shear force to prevent drug leakage. This approach yields improved drug delivery to tumor sites and enhanced antitumor efficacy. Compared to alternative methods of modifying liposome surface and composition for stability, this approach designs a physical support for an all-aqueous nanoliposomal cavity. Nanobowl stabilization of liposomes is a simple and effective method to improve carrier stability and drug delivery.
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Affiliation(s)
- Zhong-Jian Chen
- Hongqiao International Institute of Medicine, Tongren Hospital and State Key Laboratory of Oncogenes and Related Genes, Department of Pharmacology and Chemical Biology, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Si-Cong Yang
- Hongqiao International Institute of Medicine, Tongren Hospital and State Key Laboratory of Oncogenes and Related Genes, Department of Pharmacology and Chemical Biology, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Xue-Liang Liu
- Hongqiao International Institute of Medicine, Tongren Hospital and State Key Laboratory of Oncogenes and Related Genes, Department of Pharmacology and Chemical Biology, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Yuhao Gao
- Hongqiao International Institute of Medicine, Tongren Hospital and State Key Laboratory of Oncogenes and Related Genes, Department of Pharmacology and Chemical Biology, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Xiao Dong
- Hongqiao International Institute of Medicine, Tongren Hospital and State Key Laboratory of Oncogenes and Related Genes, Department of Pharmacology and Chemical Biology, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Xing Lai
- Hongqiao International Institute of Medicine, Tongren Hospital and State Key Laboratory of Oncogenes and Related Genes, Department of Pharmacology and Chemical Biology, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Mao-Hua Zhu
- Hongqiao International Institute of Medicine, Tongren Hospital and State Key Laboratory of Oncogenes and Related Genes, Department of Pharmacology and Chemical Biology, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Hai-Yi Feng
- Hongqiao International Institute of Medicine, Tongren Hospital and State Key Laboratory of Oncogenes and Related Genes, Department of Pharmacology and Chemical Biology, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Xin-Di Zhu
- Hongqiao International Institute of Medicine, Tongren Hospital and State Key Laboratory of Oncogenes and Related Genes, Department of Pharmacology and Chemical Biology, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Qin Lu
- Hongqiao International Institute of Medicine, Tongren Hospital and State Key Laboratory of Oncogenes and Related Genes, Department of Pharmacology and Chemical Biology, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Mei Zhao
- Department of Pharmacy, Shanghai University of Medicine and Health Sciences, 279 Zhouzhu Road, Shanghai 201318, China
| | - Hong-Zhuan Chen
- Institute of Interdisciplinary Integrative Biomedical Research, Shuguang Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Jonathan F Lovell
- Department of Biomedical Engineering, University at Buffalo, State University of New York, Buffalo, New York 14260, United States
| | - Chao Fang
- Hongqiao International Institute of Medicine, Tongren Hospital and State Key Laboratory of Oncogenes and Related Genes, Department of Pharmacology and Chemical Biology, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
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6
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F Brandner A, Timr S, Melchionna S, Derreumaux P, Baaden M, Sterpone F. Modelling lipid systems in fluid with Lattice Boltzmann Molecular Dynamics simulations and hydrodynamics. Sci Rep 2019; 9:16450. [PMID: 31712588 PMCID: PMC6848203 DOI: 10.1038/s41598-019-52760-y] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2019] [Accepted: 10/21/2019] [Indexed: 11/09/2022] Open
Abstract
In this work we present the coupling between Dry Martini, an efficient implicit solvent coarse-grained model for lipids, and the Lattice Boltzmann Molecular Dynamics (LBMD) simulation technique in order to include naturally hydrodynamic interactions in implicit solvent simulations of lipid systems. After validating the implementation of the model, we explored several systems where the action of a perturbing fluid plays an important role. Namely, we investigated the role of an external shear flow on the dynamics of a vesicle, the dynamics of substrate release under shear, and inquired the dynamics of proteins and substrates confined inside the core of a vesicle. Our methodology enables future exploration of a large variety of biological entities and processes involving lipid systems at the mesoscopic scale where hydrodynamics plays an essential role, e.g. by modulating the migration of proteins in the proximity of membranes, the dynamics of vesicle-based drug delivery systems, or, more generally, the behaviour of proteins in cellular compartments.
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Affiliation(s)
- Astrid F Brandner
- CNRS, Université de Paris, UPR 9080, Laboratoire de Biochimie Théorique, 13 rue Pierre et Marie Curie, F-75005, Paris, France.,Institut de Biologie Physico-Chimique-Fondation Edmond de Rothschild, PSL Research University, Paris, France
| | - Stepan Timr
- CNRS, Université de Paris, UPR 9080, Laboratoire de Biochimie Théorique, 13 rue Pierre et Marie Curie, F-75005, Paris, France.,Institut de Biologie Physico-Chimique-Fondation Edmond de Rothschild, PSL Research University, Paris, France
| | - Simone Melchionna
- ISC-CNR, Dipartimento di Fisica, Università Sapienza, P.le A. Moro 5, 00185, Rome, Italy.,Lexma Technology 1337 Massachusetts Avenue, Arlington, MA, 02476, USA
| | - Philippe Derreumaux
- CNRS, Université de Paris, UPR 9080, Laboratoire de Biochimie Théorique, 13 rue Pierre et Marie Curie, F-75005, Paris, France.,Institut de Biologie Physico-Chimique-Fondation Edmond de Rothschild, PSL Research University, Paris, France
| | - Marc Baaden
- CNRS, Université de Paris, UPR 9080, Laboratoire de Biochimie Théorique, 13 rue Pierre et Marie Curie, F-75005, Paris, France.,Institut de Biologie Physico-Chimique-Fondation Edmond de Rothschild, PSL Research University, Paris, France
| | - Fabio Sterpone
- CNRS, Université de Paris, UPR 9080, Laboratoire de Biochimie Théorique, 13 rue Pierre et Marie Curie, F-75005, Paris, France. .,Institut de Biologie Physico-Chimique-Fondation Edmond de Rothschild, PSL Research University, Paris, France.
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7
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Szigyártó IC, Deák R, Mihály J, Rocha S, Zsila F, Varga Z, Beke-Somfai T. Flow Alignment of Extracellular Vesicles: Structure and Orientation of Membrane-Associated Bio-macromolecules Studied with Polarized Light. Chembiochem 2018; 19:545-551. [PMID: 29237098 DOI: 10.1002/cbic.201700378] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2017] [Revised: 11/17/2017] [Indexed: 12/26/2022]
Abstract
Extracellular vesicles (EVs) are currently in scientific focus, as they have great potential to revolutionize the diagnosis and therapy of various diseases. However, numerous aspects of these species are still poorly understood, and thus, additional insight into their molecular-level properties, membrane-protein interactions, and membrane rigidity is still needed. We here demonstrate the use of red-blood-cell-derived EVs (REVs) that polarized light spectroscopy techniques, linear and circular dichroism, can provide molecular-level structural information on these systems. Flow-linear dichroism (flow-LD) measurements show that EVs can be oriented by shear force and indicate that hemoglobin molecules are associated to the lipid bilayer in freshly released REVs. During storage, this interaction ceases; this is coupled to major protein conformational changes relative to the initial state. Further on, the degree of orientation gives insight into vesicle rigidity, which decreases in time parallel to changes in protein conformation. Overall, we propose that both linear dichroism and circular dichroism spectroscopy can provide simple, rapid, yet efficient ways to track changes in the membrane-protein interactions of EV components at the molecular level, which may also give insight into processes occurring during vesiculation.
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Affiliation(s)
- Imola Cs Szigyártó
- Institute of Materials and Environmental Chemistry, Research Centre for Natural Sciences, Hungarian Academy of Sciences, P. O. Box 286, 1519, Budapest, Hungary
| | - Róbert Deák
- Institute of Materials and Environmental Chemistry, Research Centre for Natural Sciences, Hungarian Academy of Sciences, P. O. Box 286, 1519, Budapest, Hungary
| | - Judith Mihály
- Institute of Materials and Environmental Chemistry, Research Centre for Natural Sciences, Hungarian Academy of Sciences, P. O. Box 286, 1519, Budapest, Hungary
| | - Sandra Rocha
- Department of Biology and Biological Engineering, Chalmers University of Technology, Chemical Biology, Kemigården 4, 41296, Göteborg, Sweden
| | - Ferenc Zsila
- Institute of Materials and Environmental Chemistry, Research Centre for Natural Sciences, Hungarian Academy of Sciences, P. O. Box 286, 1519, Budapest, Hungary
| | - Zoltán Varga
- Institute of Materials and Environmental Chemistry, Research Centre for Natural Sciences, Hungarian Academy of Sciences, P. O. Box 286, 1519, Budapest, Hungary.,Department of Biophysics and Radiation Biology, Semmelweis University, Tűzoltó u. 37-47, 1094, Budapest, Hungary
| | - Tamás Beke-Somfai
- Institute of Materials and Environmental Chemistry, Research Centre for Natural Sciences, Hungarian Academy of Sciences, P. O. Box 286, 1519, Budapest, Hungary.,Department of Chemistry and Chemical Engineering, Chemistry and Biochemistry, Chalmers University of Technology, Kemigården 4, 41296, Göteborg, Sweden
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8
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Vitor MT, Bergami-Santos PC, Zômpero RHF, Cruz KSP, Pinho MP, Barbuto JAM, de la Torre LG. Cationic liposomes produced via ethanol injection method for dendritic cell therapy. J Liposome Res 2016; 27:249-263. [DOI: 10.1080/08982104.2016.1196702] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Micaela Tamara Vitor
- Department of Materials and Bioprocesses Engineering, School of Chemical Engineering, University of Campinas (Unicamp), Campinas, Brazil and
| | | | - Rafael Henrique Freitas Zômpero
- Department of Materials and Bioprocesses Engineering, School of Chemical Engineering, University of Campinas (Unicamp), Campinas, Brazil and
| | | | - Mariana Pereira Pinho
- Department of Immunology, Institute of Biomedical Sciences, University of São Paulo (USP), São Paulo, Brazil
| | | | - Lucimara Gaziola de la Torre
- Department of Materials and Bioprocesses Engineering, School of Chemical Engineering, University of Campinas (Unicamp), Campinas, Brazil and
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9
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Rawat J, Gadgil M. Shear stress increases cytotoxicity and reduces transfection efficiency of liposomal gene delivery to CHO-S cells. Cytotechnology 2016; 68:2529-2538. [PMID: 27130551 DOI: 10.1007/s10616-016-9974-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2016] [Accepted: 04/19/2016] [Indexed: 11/26/2022] Open
Abstract
Animal cells in suspension experience shear stress in different situations such as in vivo due to hemodynamics, or in vitro due to agitation in large-scale bioreactors. Shear stress is known to affect cell physiology, including binding and uptake of extracellular cargo. In adherent cells the effects of exposure to shear stress on particle binding kinetics and uptake have been studied. There are however no reports on the effect of shear stress on extracellular cargo delivery to suspension cells. In this study, we have evaluated the effect of shear stress on transfection of CHO-S cells using Lipofectamine 2000 in a simple flow apparatus. Our results show decreased cell growth and transfection efficiency upon lipoplex assisted transfection of CHO-S while being subjected to shear stress. This effect is not seen to the same extent when cells are exposed to shear stress in absence of the lipoplex complex and subsequently transfected, or if the lipoplex is subjected to shear stress and subsequently used to transfect the cells. It is also not seen to the same extent when cells are exposed to shear stress in presence of liposome alone, suggesting that the observed effect is dependent on interaction of the lipoplex with cells in the presence of shear stress. These results suggest that studies involving liposomal DNA delivery in presence of shear stress such as large scale transient protein expression should account for the effect of shear during lipoplex assisted DNA delivery.
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Affiliation(s)
- Jyoti Rawat
- Chemical Engineering and Process Development Division, CSIR-National Chemical Laboratory, Pune, 411008, India
| | - Mugdha Gadgil
- Chemical Engineering and Process Development Division, CSIR-National Chemical Laboratory, Pune, 411008, India.
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10
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Ibarguren M, Bomans PHH, Ruiz-Mirazo K, Frederik PM, Alonso A, Goñi FM. Thermally-induced aggregation and fusion of protein-free lipid vesicles. Colloids Surf B Biointerfaces 2015; 136:545-52. [PMID: 26454544 DOI: 10.1016/j.colsurfb.2015.09.047] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2015] [Revised: 08/21/2015] [Accepted: 09/24/2015] [Indexed: 12/11/2022]
Abstract
Membrane fusion is an important phenomenon in cell biology and pathology. This phenomenon can be modeled using vesicles of defined size and lipid composition. Up to now fusion models typically required the use of chemical (polyethyleneglycol, cations) or enzymatic catalysts (phospholipases). We present here a model of lipid vesicle fusion induced by heat. Large unilamellar vesicles consisting of a phospholipid (dioleoylphosphatidylcholine), cholesterol and diacylglycerol in a 43:57:3 mol ratio were employed. In this simple system, fusion was the result of thermal fluctuations, above 60 °C. A similar system containing phospholipid and cholesterol but no diacylglycerol was observed to aggregate at and above 60 °C, in the absence of fusion. Vesicle fusion occurred under our experimental conditions only when (31)P NMR and cryo-transmission electron microscopy of the lipid mixtures used in vesicle preparation showed non-lamellar lipid phase formation (hexagonal and cubic). Non-lamellar structures are probably the result of lipid reassembly of the products of individual fusion events, or of fusion intermediates. A temperature-triggered mechanism of lipid reassembly might have occurred at various stages of protocellular evolution.
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Affiliation(s)
- Maitane Ibarguren
- Unidad de Biofísica (Centro Mixto CSIC, UPV/EHU), and Departamento de Bioquímica, Universidad del País Vasco, Apto. 644, 48080 Bilbao, Spain.
| | - Paul H H Bomans
- Soft Matter CryoTEM Research Unit, Laboratory for Materials and Interface Chemistry, P.O. Box 513, 5600MB Eindhoven, The Netherlands.
| | - Kepa Ruiz-Mirazo
- Unidad de Biofísica (Centro Mixto CSIC, UPV/EHU), and Departamento de Bioquímica, Universidad del País Vasco, Apto. 644, 48080 Bilbao, Spain; Logic and Philosophy of Science Department, University of the Basque Country, Spain.
| | - Peter M Frederik
- Soft Matter CryoTEM Research Unit, Laboratory for Materials and Interface Chemistry, P.O. Box 513, 5600MB Eindhoven, The Netherlands.
| | - Alicia Alonso
- Unidad de Biofísica (Centro Mixto CSIC, UPV/EHU), and Departamento de Bioquímica, Universidad del País Vasco, Apto. 644, 48080 Bilbao, Spain.
| | - Félix M Goñi
- Unidad de Biofísica (Centro Mixto CSIC, UPV/EHU), and Departamento de Bioquímica, Universidad del País Vasco, Apto. 644, 48080 Bilbao, Spain.
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11
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Shin S, Ault JT, Stone HA. Flow-Driven Rapid Vesicle Fusion via Vortex Trapping. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2015; 31:7178-82. [PMID: 26098933 DOI: 10.1021/acs.langmuir.5b01752] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Fusion between suspended lipid vesicles is difficult to achieve without membrane proteins or ions because the vesicles have extremely low equilibrium membrane tension and high poration energy. Nonetheless, vesicle fusion in the absence of mediators can also be achieved by mechanical forcing that is strong enough to induce membrane poration. Here, we employ a strong fluid shear stress to achieve vesicle fusion. By utilizing a unique vortex formation phenomenon in branched channels as a platform for capturing, stressing, and fusing the lipid vesicles, we directly visualize using high-speed imaging the vesicle fusion events, induced solely by shear, on the time scale of submilliseconds. We show that a large vesicle with a size of up to ∼10 μm can be achieved by the fusion of nanoscale vesicles. This technique has the potential to be utilized as a fast and simple way to produce giant unilamellar vesicles and to serve as a platform for visualizing vesicle interactions and fusions in the presence of shear.
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Affiliation(s)
- Sangwoo Shin
- Department of Mechanical and Aerospace Engineering, Princeton University, Princeton, New Jersey 08544, United States
| | - Jesse T Ault
- Department of Mechanical and Aerospace Engineering, Princeton University, Princeton, New Jersey 08544, United States
| | - Howard A Stone
- Department of Mechanical and Aerospace Engineering, Princeton University, Princeton, New Jersey 08544, United States
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Yang PW, Lin TL, Hu Y, Jeng US. A time-resolved study on the interaction of oppositely charged bicelles--implications on the charged lipid exchange kinetics. SOFT MATTER 2015; 11:2237-2242. [PMID: 25649711 DOI: 10.1039/c4sm02886d] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Time-resolved small-angle X-ray scattering was applied to study charged lipid exchange between oppositely charged disc-shaped bicelles. The exchange of charged lipids gradually reduces the surface charge density and weakens the electrostatic attraction between the oppositely charged bicelles which form alternately stacked aggregates upon mixing. Initially, at a high surface charge density with almost no free water layer between the stacked bicelles, fast exchange kinetics dominate the exchange process. At a later stage with a lower surface charge density and a larger water gap between the stacked bicelles, slow exchange kinetics take over. The fast exchange kinetics are correlated with the close contact of the bicelles when there is almost no free water layer between the tightly bound bicelles with a charged lipid exchange time constant as short as 20-40 min. When the water gap becomes large enough to have a free water layer between the stacked bicelles, the fast lipid exchange kinetics are taken over by slow lipid exchange kinetics with time constants around 200-300 min, which are comparable to the typical time constant of lipid exchange between vesicles in aqueous solution. These two kinds of exchange mode fit well with the lipid exchange models of transient hemifusion for the fast mode and monomer exchange for the slow mode.
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Affiliation(s)
- Po-Wei Yang
- Department of Engineering and System Science, National Tsing Hua University, Hsinchu, Taiwan, Republic of China.
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