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Georgiev VN, Grafmüller A, Bléger D, Hecht S, Kunstmann S, Barbirz S, Lipowsky R, Dimova R. Area Increase and Budding in Giant Vesicles Triggered by Light: Behind the Scene. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2018; 5:1800432. [PMID: 30128249 PMCID: PMC6096984 DOI: 10.1002/advs.201800432] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/19/2018] [Revised: 04/18/2018] [Indexed: 06/08/2023]
Abstract
Biomembranes are constantly remodeled and in cells, these processes are controlled and modulated by an assortment of membrane proteins. Here, it is shown that such remodeling can also be induced by photoresponsive molecules. The morphological control of giant vesicles in the presence of a water-soluble ortho-tetrafluoroazobenzene photoswitch (F-azo) is demonstrated and it is shown that the shape transformations are based on an increase in membrane area and generation of spontaneous curvature. The vesicles exhibit budding and the buds can be retracted by using light of a different wavelength. In the presence of F-azo, the membrane area can increase by more than 5% as assessed from vesicle electrodeformation. To elucidate the underlying molecular mechanism and the partitioning of F-azo in the membrane, molecular dynamics simulations are employed. Comparison with theoretically calculated shapes reveals that the budded shapes are governed by curvature elasticity, that the spontaneous curvature can be decomposed into a local and a nonlocal contribution, and that the local spontaneous curvature is about 1/(2.5 µm). The results show that exo- and endocytotic events can be controlled by light and that these photoinduced processes provide an attractive method to change membrane area and morphology.
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Affiliation(s)
- Vasil N. Georgiev
- Department of Theory and Bio‐SystemsMax Planck Institute of Colloids and InterfacesScience Park Golm14424PotsdamGermany
| | - Andrea Grafmüller
- Department of Theory and Bio‐SystemsMax Planck Institute of Colloids and InterfacesScience Park Golm14424PotsdamGermany
| | - David Bléger
- Department of Chemistry & IRIS AdlershofHumboldt‐Universität zu BerlinBrook‐Taylor‐Str. 212489BerlinGermany
| | - Stefan Hecht
- Department of Chemistry & IRIS AdlershofHumboldt‐Universität zu BerlinBrook‐Taylor‐Str. 212489BerlinGermany
| | - Sonja Kunstmann
- Department of Theory and Bio‐SystemsMax Planck Institute of Colloids and InterfacesScience Park Golm14424PotsdamGermany
- Physikalische BiochemieUniversität PotsdamKarl‐Liebknecht‐Str. 24‐2514476PotsdamGermany
| | - Stefanie Barbirz
- Physikalische BiochemieUniversität PotsdamKarl‐Liebknecht‐Str. 24‐2514476PotsdamGermany
| | - Reinhard Lipowsky
- Department of Theory and Bio‐SystemsMax Planck Institute of Colloids and InterfacesScience Park Golm14424PotsdamGermany
| | - Rumiana Dimova
- Department of Theory and Bio‐SystemsMax Planck Institute of Colloids and InterfacesScience Park Golm14424PotsdamGermany
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Pernpeintner C, Frank JA, Urban P, Roeske CR, Pritzl SD, Trauner D, Lohmüller T. Light-Controlled Membrane Mechanics and Shape Transitions of Photoswitchable Lipid Vesicles. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2017; 33:4083-4089. [PMID: 28361538 DOI: 10.1021/acs.langmuir.7b01020] [Citation(s) in RCA: 68] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Giant unilamellar vesicles (GUVs) represent a versatile model system to emulate the fundamental properties and functions associated with the plasma membrane of living cells. Deformability and shape transitions of lipid vesicles are closely linked to the mechanical properties of the bilayer membrane itself and are typically difficult to control under physiological conditions. Here, we developed a protocol to form cell-sized vesicles from an azobenzene-containing phosphatidylcholine (azo-PC), which undergoes photoisomerization on irradiation with UV-A and visible light. Photoswitching within the photolipid vesicles enabled rapid and precise control of the mechanical properties of the membrane. By varying the intensity and dynamics of the optical stimulus, controlled vesicle shape changes such as budding transitions, invagination, pearling, or the formation of membrane tubes were achieved. With this system, we could mimic the morphology changes normally seen in cells, in the absence of any molecular machines associated with the cytoskeleton. Furthermore, we devised a mechanism to utilize photoswitchable lipid membranes for storing mechanical energy and then releasing it on command as locally usable work.
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Affiliation(s)
- Carla Pernpeintner
- Photonics and Optoelectronics Group, Department of Physics and CeNS, Ludwig Maximilians University Munich , Amalienstraße 54, 80799 Munich, Germany
- Nanosystems Initiative Munich, Schellingstraße 4, 80799 Munich, Germany
| | - James A Frank
- Department of Chemistry and Center for Integrated Protein Science, Ludwig Maximilians University Munich , Butenandtstraße 5-13, 81377 Munich, Germany
| | - Patrick Urban
- Photonics and Optoelectronics Group, Department of Physics and CeNS, Ludwig Maximilians University Munich , Amalienstraße 54, 80799 Munich, Germany
| | - Christian R Roeske
- Photonics and Optoelectronics Group, Department of Physics and CeNS, Ludwig Maximilians University Munich , Amalienstraße 54, 80799 Munich, Germany
| | - Stefanie D Pritzl
- Photonics and Optoelectronics Group, Department of Physics and CeNS, Ludwig Maximilians University Munich , Amalienstraße 54, 80799 Munich, Germany
| | - Dirk Trauner
- Department of Chemistry and Center for Integrated Protein Science, Ludwig Maximilians University Munich , Butenandtstraße 5-13, 81377 Munich, Germany
- Nanosystems Initiative Munich, Schellingstraße 4, 80799 Munich, Germany
| | - Theobald Lohmüller
- Photonics and Optoelectronics Group, Department of Physics and CeNS, Ludwig Maximilians University Munich , Amalienstraße 54, 80799 Munich, Germany
- Nanosystems Initiative Munich, Schellingstraße 4, 80799 Munich, Germany
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Bonnaud C, Monnier CA, Demurtas D, Jud C, Vanhecke D, Montet X, Hovius R, Lattuada M, Rothen-Rutishauser B, Petri-Fink A. Insertion of nanoparticle clusters into vesicle bilayers. ACS NANO 2014; 8:3451-3460. [PMID: 24611878 DOI: 10.1021/nn406349z] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
A major contemporary concern in developing effective liposome-nanoparticle hybrids is the present inclusion size limitation of nanoparticles between vesicle bilayers, which is considered to be around 6.5 nm in diameter. In this article, we present experimental observations backed by theoretical considerations which show that greater structures can be incorporated within vesicle membranes by promoting the clustering of nanoparticles before liposome formation. Cryo-transmission electron microscopy and cryo-electron tomography confirm these observations at unprecedented detail and underpin that the liposome membranes can accommodate flexible structures of up to 60 nm in size. These results imply that this material is more versatile in terms of inclusion capabilities and consequently widens the opportunities in developing multivalent vesicles for nanobiotechnology applications.
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Affiliation(s)
- Cécile Bonnaud
- Adolphe Merkle Institute, University of Fribourg , Route de l'Ancienne Papéterie CP209, 1723 Marly 1, Switzerland
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Petrichenko O, Erglis K, Cēbers A, Plotniece A, Pajuste K, Béalle G, Ménager C, Dubois E, Perzynski R. Bilayer properties of giant magnetic liposomes formed by cationic pyridine amphiphile and probed by active deformation under magnetic forces. THE EUROPEAN PHYSICAL JOURNAL. E, SOFT MATTER 2013; 36:9. [PMID: 23359032 DOI: 10.1140/epje/i2013-13009-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/15/2012] [Accepted: 01/16/2013] [Indexed: 06/01/2023]
Abstract
We synthesize giant magnetic liposomes by a reverse-phase evaporation method (REV) using a new self-assembling Cationic Pyridine Amphiphile (CPA) derived from 1,4-dihydropyridine as liposome-forming agent and a magnetic ferrofluid based on γ-Fe(2)O(3) nanoparticles. Having in view the potential interest of CPA in targeted transport by magnetic forces, the mechanical elastic properties of such bilayers are here directly investigated in vesicles loaded with magnetic nanoparticles. Bending elastic modulus K(b) ∼ 0.2 to 5k(B)T and pre-stress τ ∼ 3.2 to 12.10(-6) erg/cm(2) are deduced from the under-field deformations of the giant magnetic liposomes. The obtained K(b) values are discussed in terms of A. Wurgers's theory.
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Affiliation(s)
- O Petrichenko
- University of Latvia, Zeļļu-8, LV-1002, Rıga, Latvia
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Tahara K, Tadokoro S, Kawashima Y, Hirashima N. Endocytosis-like uptake of surface-modified drug nanocarriers into giant unilamellar vesicles. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2012; 28:7114-7118. [PMID: 22515197 DOI: 10.1021/la300902z] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
We had previously developed surface-modified poly (D,L-lactide-co-glycolide) (PLGA) nanoparticles (NPs) for use as a cellular drug delivery system. The cellular uptake of PLGA-NPs was mediated predominantly by endocytosis, and this uptake was increased by surface modifications with polymers, such as chitosan (CS) and polysorbate 80 (P80). In the present study, we prepared a cell-sized giant unilamellar vesicle (GUV) that mimics a cell membrane to investigate the interaction between cell membranes and NPs. Endocytosis-like uptake of NPs into a GUV was observed when the NPs were modified with nonionic surfactant P80 probably due to change in viscoelasticity and enhanced fusion activity of the membrane induced by P80. In contrast, unmodified NPs and those modified with CS were not internalized into a GUV. These results suggest that surface properties of PLGA-NPs are an important formulation parameter for their interaction with lipid membranes.
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Affiliation(s)
- Kohei Tahara
- Graduate School of Pharmaceutical Sciences, Nagoya City University, 3-1, Tanabe-dori, Mizuho-ku, Nagoya 467-8603, Japan
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Diguet A, Yanagisawa M, Liu YJ, Brun E, Abadie S, Rudiuk S, Baigl D. UV-induced bursting of cell-sized multicomponent lipid vesicles in a photosensitive surfactant solution. J Am Chem Soc 2012; 134:4898-904. [PMID: 22316240 PMCID: PMC3303198 DOI: 10.1021/ja211664f] [Citation(s) in RCA: 63] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
We study the behavior of multicomponent giant unilamellar vesicles (GUVs) in the presence of AzoTAB, a photosensitive surfactant. GUVs are made of an equimolar ratio of dioleoylphosphatidylcholine (DOPC) and dipalmitoylphosphatidylcholine (DPPC) and various amounts of cholesterol (Chol), where the lipid membrane shows a phase separation into a DPPC-rich liquid-ordered (L(o)) phase and a DOPC-rich liquid-disordered (L(d)) phase. We find that UV illumination at 365 nm for 1 s induces the bursting of a significant fraction of the GUV population. The percentage of UV-induced disrupted vesicles, called bursting rate (Y(burst)), increases with an increase in [AzoTAB] and depends on [Chol] in a non-monotonous manner. Y(burst) decreases when [Chol] increases from 0 to 10 mol % and then increases with a further increase in [Chol], which can be correlated with the phase composition of the membrane. We show that Y(burst) increases with the appearance of solid domains ([Chol] = 0) or with an increase in area fraction of L(o) phase (with increasing [Chol] ≥ 10 mol %). Under our conditions (UV illumination at 365 nm for 1 s), maximal bursting efficiency (Y(burst) = 53%) is obtained for [AzoTAB] = 1 mM and [Chol] = 40 mol %. Finally, by restricting the illumination area, we demonstrate the first selective UV-induced bursting of individual target GUVs. These results show a new method to probe biomembrane mechanical properties using light as well as pave the way for novel strategies of light-induced drug delivery.
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Affiliation(s)
- Antoine Diguet
- Department of Chemistry, Ecole Normale Supérieure, 24 rue Lhomond, 75005 Paris, France
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Hsin TM, Wu K, Chellappan G. Magnetically immobilized nanoporous giant proteoliposomes as a platform for biosensing. Analyst 2012; 137:245-8. [DOI: 10.1039/c1an15565b] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Sanson C, Diou O, Thévenot J, Ibarboure E, Soum A, Brûlet A, Miraux S, Thiaudière E, Tan S, Brisson A, Dupuis V, Sandre O, Lecommandoux S. Doxorubicin loaded magnetic polymersomes: theranostic nanocarriers for MR imaging and magneto-chemotherapy. ACS NANO 2011; 5:1122-40. [PMID: 21218795 DOI: 10.1021/nn102762f] [Citation(s) in RCA: 256] [Impact Index Per Article: 19.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/19/2023]
Abstract
Hydrophobically modified maghemite (γ-Fe(2)O(3)) nanoparticles were encapsulated within the membrane of poly(trimethylene carbonate)-b-poly(l-glutamic acid) (PTMC-b-PGA) block copolymer vesicles using a nanoprecipitation process. This formation method gives simple access to highly magnetic nanoparticles (MNPs) (loaded up to 70 wt %) together with good control over the vesicles size (100-400 nm). The simultaneous loading of maghemite nanoparticles and doxorubicin was also achieved by nanoprecipitation. The deformation of the vesicle membrane under an applied magnetic field has been evidenced by small angle neutron scattering. These superparamagnetic hybrid self-assemblies display enhanced contrast properties that open potential applications for magnetic resonance imaging. They can also be guided in a magnetic field gradient. The feasibility of controlled drug release by radio frequency magnetic hyperthermia was demonstrated in the case of encapsulated doxorubicin molecules, showing the viability of the concept of magneto-chemotherapy. These magnetic polymersomes can be used as efficient multifunctional nanocarriers for combined therapy and imaging.
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Affiliation(s)
- Charles Sanson
- Université de Bordeaux/IPB, ENSCBP, 16 avenue Pey Berland, 33607 Pessac Cedex, France
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Ménager C, Guemghar D, Cabuil V, Lesieur S. Interaction of n-octyl β,D-glucopyranoside with giant magnetic-fluid-loaded phosphatidylcholine vesicles: direct visualization of membrane curvature fluctuations as a function of surfactant partitioning between water and lipid bilayer. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2010; 26:15453-15463. [PMID: 20825201 DOI: 10.1021/la102532h] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
The present study deals with the morphological modifications of giant dioleoyl phosphatidylcholine vesicles (DOPC GUVs) induced by the nonionic surfactant n-octyl β,D-glucopyranoside at sublytic levels, i.e., in the first steps of the vesicle-to-micelle transition process, when surfactant inserts into the vesicle bilayer without disruption. Experimental conditions were perfected to exactly control the surfactant bilayer composition of the vesicles, in line with former work focused on the mechanical properties of the membrane of magnetic-fluid-loaded DOPC GUVs submitted to a magnetic field. The purpose here was to systematically examine, in the absence of any external mechanical constraint, the dynamics of giant vesicle shape and membrane deformations as a function of surfactant partitioning between the aqueous phase and the lipid membrane, beforehand established by turbidity measurements from small unilamellar vesicles.
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Affiliation(s)
- Christine Ménager
- UPMC Univ Paris 06, UMR 7195 PECSA, Physicochimie des Electrolytes, Colloïdes, Sciences Analytiques, F-75005 Paris France
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In situ precipitation of magnetic fluid encapsulated in giant liposomes. J Colloid Interface Sci 2010; 343:396-9. [DOI: 10.1016/j.jcis.2009.11.016] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2009] [Revised: 11/04/2009] [Accepted: 11/05/2009] [Indexed: 11/23/2022]
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Ishii KI, Hamada T, Hatakeyama M, Sugimoto R, Nagasaki T, Takagi M. Reversible Control ofExo- andEndo-Budding Transitions in a Photosensitive Lipid Membrane. Chembiochem 2009; 10:251-6. [DOI: 10.1002/cbic.200800482] [Citation(s) in RCA: 71] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Beaune G, Soussan E, Blanzat M, Rico-Lattes I, Cabuil V, Ménager C. Interaction between catanionic vesicles and giant magnetic vesicles. CR CHIM 2009. [DOI: 10.1016/j.crci.2008.08.012] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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