1
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Fielden SDP, Derry MJ, Miller A, Topham PD, O’Reilly RK. Triggered Polymersome Fusion. J Am Chem Soc 2023; 145:5824-5833. [PMID: 36877655 PMCID: PMC10021019 DOI: 10.1021/jacs.2c13049] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2022] [Indexed: 03/07/2023]
Abstract
The contents of biological cells are retained within compartments formed of phospholipid membranes. The movement of material within and between cells is often mediated by the fusion of phospholipid membranes, which allows mixing of contents or excretion of material into the surrounding environment. Biological membrane fusion is a highly regulated process that is catalyzed by proteins and often triggered by cellular signaling. In contrast, the controlled fusion of polymer-based membranes is largely unexplored, despite the potential application of this process in nanomedicine, smart materials, and reagent trafficking. Here, we demonstrate triggered polymersome fusion. Out-of-equilibrium polymersomes were formed by ring-opening metathesis polymerization-induced self-assembly and persist until a specific chemical signal (pH change) triggers their fusion. Characterization of polymersomes was performed by a variety of techniques, including dynamic light scattering, dry-state/cryogenic-transmission electron microscopy, and small-angle X-ray scattering (SAXS). The fusion process was followed by time-resolved SAXS analysis. Developing elementary methods of communication between polymersomes, such as fusion, will prove essential for emulating life-like behaviors in synthetic nanotechnology.
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Affiliation(s)
| | - Matthew J. Derry
- Aston
Advanced Materials Research Centre, Aston
University, Birmingham B4 7ET, UK
| | - Alisha
J. Miller
- School
of Chemistry, University of Birmingham,
Edgbaston, Birmingham B15 2TT, UK
| | - Paul D. Topham
- Aston
Advanced Materials Research Centre, Aston
University, Birmingham B4 7ET, UK
| | - Rachel K. O’Reilly
- School
of Chemistry, University of Birmingham,
Edgbaston, Birmingham B15 2TT, UK
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2
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van Tilburg M, Hilbers PAJ, Markvoort AJ. On the role of membrane embedding, protein rigidity and transmembrane length in lipid membrane fusion. SOFT MATTER 2023; 19:1791-1802. [PMID: 36786821 DOI: 10.1039/d2sm01582j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
The fusion of biological membranes is ubiquitous in natural processes like exo- and endocytosis, intracellular trafficking and viral entry. Membrane fusion is also utilized in artificial biomimetic fusion systems, e.g. for drug delivery. Both the natural and the biomimetic fusion systems rely on a wide range of (artificial) proteins mediating the fusion process. Although the exact mechanisms of these proteins differ, clear analogies in their general behavior can be observed in bringing the membranes in close proximity and mediating the fusion reaction. In our study, we use molecular dynamics simulations with coarse grained models, mimicking the general behavior of fusion proteins (spikes), to systematically examine the effects of specific characteristics of these proteins on the fusion process. The protein characteristics considered are (i) the type of membrane embedding, i.e., either transmembrane or not, (ii) the rigidity, and (iii) the transmembrane domain (TMD) length. The results show essential differences in fusion pathway between monotopic and transmembrane spikes, in which transmembrane spikes seem to inhibit the formation of hemifusion diaphragms, leading to a faster fusion development. Furthermore, we observed that an increased rigidity and a decreased TMD length both proved to contribute to a faster fusion development. Finally, we show that a single spike may suffice to successfully induce a fusion reaction, provided that the spike is sufficiently rigid and attractive. Not only does this shed light on biological fusion of membranes, it also provides clear design rules for artificial membrane fusion systems.
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Affiliation(s)
- Marco van Tilburg
- Department of Biomedical Engineering, Computational Biology Group, Eindhoven University of Technology, The Netherlands.
| | - Peter A J Hilbers
- Department of Biomedical Engineering, Computational Biology Group, Eindhoven University of Technology, The Netherlands.
- Institute of Complex Molecular Systems, Eindhoven University of Technology, The Netherlands
| | - Albert J Markvoort
- Department of Biomedical Engineering, Computational Biology Group, Eindhoven University of Technology, The Netherlands.
- Institute of Complex Molecular Systems, Eindhoven University of Technology, The Netherlands
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3
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Gautam L, Shrivastava P, Yadav B, Jain A, Sharma R, Vyas S, Vyas SP. Multicompartment systems: A putative carrier for combined drug delivery and targeting. Drug Discov Today 2021; 27:1184-1195. [PMID: 34906689 DOI: 10.1016/j.drudis.2021.12.007] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2020] [Revised: 10/27/2021] [Accepted: 12/08/2021] [Indexed: 12/11/2022]
Abstract
In this review, we discuss recent developments in multicompartment systems commonly referred to as vesosomes, as well as their method of preparation, surface modifications, and clinical potential. Vesosomal systems are able to entrap more than one drug moiety and can be customized for site-specific delivery. We focus in particular on the possible reticuloendothelial system (RES) - mediated accumulation of vesosomes, and their application in tumor targeting, as areas for further investigation.
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Affiliation(s)
- Laxmikant Gautam
- Drug Delivery Research Laboratory, Department of Pharmaceutical Sciences, Dr. Harisingh Gour Vishwavidyalaya, Sagar, MP 470003, India
| | - Priya Shrivastava
- Drug Delivery Research Laboratory, Department of Pharmaceutical Sciences, Dr. Harisingh Gour Vishwavidyalaya, Sagar, MP 470003, India
| | - Bhavana Yadav
- Drug Delivery Research Laboratory, Department of Pharmaceutical Sciences, Dr. Harisingh Gour Vishwavidyalaya, Sagar, MP 470003, India
| | - Anamika Jain
- Drug Delivery Research Laboratory, Department of Pharmaceutical Sciences, Dr. Harisingh Gour Vishwavidyalaya, Sagar, MP 470003, India
| | - Rajeev Sharma
- Drug Delivery Research Laboratory, Department of Pharmaceutical Sciences, Dr. Harisingh Gour Vishwavidyalaya, Sagar, MP 470003, India
| | - Sonal Vyas
- Shri Chaitanya Hospital, Sagar, MP 470003, India
| | - S P Vyas
- Drug Delivery Research Laboratory, Department of Pharmaceutical Sciences, Dr. Harisingh Gour Vishwavidyalaya, Sagar, MP 470003, India.
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4
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Daudey GA, Shen M, Singhal A, van der Est P, Sevink GJA, Boyle AL, Kros A. Liposome fusion with orthogonal coiled coil peptides as fusogens: the efficacy of roleplaying peptides. Chem Sci 2021; 12:13782-13792. [PMID: 34760163 PMCID: PMC8549789 DOI: 10.1039/d0sc06635d] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2020] [Accepted: 09/18/2021] [Indexed: 12/18/2022] Open
Abstract
Biological membrane fusion is a highly specific and coordinated process as a multitude of vesicular fusion events proceed simultaneously in a complex environment with minimal off-target delivery. In this study, we develop a liposomal fusion model system with specific recognition using lipidated derivatives of a set of four de novo designed heterodimeric coiled coil (CC) peptide pairs. Content mixing was only obtained between liposomes functionalized with complementary peptides, demonstrating both fusogenic activity of CC peptides and the specificity of this model system. The diverse peptide fusogens revealed important relationships between the fusogenic efficacy and the peptide characteristics. The fusion efficiency increased from 20% to 70% as affinity between complementary peptides decreased, (from KF ≈ 108 to 104 M−1), and fusion efficiency also increased due to more pronounced asymmetric role-playing of membrane interacting ‘K’ peptides and homodimer-forming ‘E’ peptides. Furthermore, a new and highly fusogenic CC pair (E3/P1K) was discovered, providing an orthogonal peptide triad with the fusogenic CC pairs P2E/P2K and P3E/P3K. This E3/P1k pair was revealed, via molecular dynamics simulations, to have a shifted heptad repeat that can accommodate mismatched asparagine residues. These results will have broad implications not only for the fundamental understanding of CC design and how asparagine residues can be accommodated within the hydrophobic core, but also for drug delivery systems by revealing the necessary interplay of efficient peptide fusogens and enabling the targeted delivery of different carrier vesicles at various peptide-functionalized locations. We developed a liposomal fusion model system with specific recognition using a set of heterodimeric coiled coil peptide pairs. This study unravels important structure–fusogenic efficacy relationships of peptide fusogens.![]()
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Affiliation(s)
- Geert A Daudey
- Supramolecular and Biomaterials Chemistry, Leiden Institute of Chemistry, Leiden University P.O. Box 9502 2300 RA Leiden The Netherlands
| | - Mengjie Shen
- Supramolecular and Biomaterials Chemistry, Leiden Institute of Chemistry, Leiden University P.O. Box 9502 2300 RA Leiden The Netherlands
| | - Ankush Singhal
- Supramolecular and Biomaterials Chemistry, Leiden Institute of Chemistry, Leiden University P.O. Box 9502 2300 RA Leiden The Netherlands
| | - Patrick van der Est
- Supramolecular and Biomaterials Chemistry, Leiden Institute of Chemistry, Leiden University P.O. Box 9502 2300 RA Leiden The Netherlands
| | - G J Agur Sevink
- Supramolecular and Biomaterials Chemistry, Leiden Institute of Chemistry, Leiden University P.O. Box 9502 2300 RA Leiden The Netherlands
| | - Aimee L Boyle
- Macromolecular Biochemistry, Leiden Institute of Chemistry, Leiden University P.O. Box 9502 2300 RA Leiden The Netherlands
| | - Alexander Kros
- Supramolecular and Biomaterials Chemistry, Leiden Institute of Chemistry, Leiden University P.O. Box 9502 2300 RA Leiden The Netherlands
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5
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Daudey G, Zope HR, Voskuhl J, Kros A, Boyle AL. Membrane-Fusogen Distance Is Critical for Efficient Coiled-Coil-Peptide-Mediated Liposome Fusion. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2017; 33:12443-12452. [PMID: 28980816 PMCID: PMC5666511 DOI: 10.1021/acs.langmuir.7b02931] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/19/2017] [Revised: 10/02/2017] [Indexed: 06/07/2023]
Abstract
We have developed a model system for membrane fusion that utilizes lipidated derivatives of a heterodimeric coiled-coil pair dubbed E3 (EIAALEK)3 and K3 (KIAALKE)3. In this system, peptides are conjugated to a lipid anchor via a poly(ethylene glycol) (PEG) spacer, and this contribution studies the influence of the PEG spacer length, coupled with the type of lipid anchor, on liposome-liposome fusion. The effects of these modifications on peptide secondary structure, their interactions with liposomes, and their ability to mediate fusion were studied using a variety of different content mixing experiments and CD spectroscopy. Our results demonstrate the asymmetric role of the peptides in the fusion process because alterations to the PEG spacer length affect E3 and K3 differently. We conclude that negatively charged E3 acts as a "handle" for positively charged K3 and facilitates liposome docking, the first stage of the fusion process, through coiled-coil formation. The efficacy of this E3 handle is enhanced by longer spacer lengths. K3 directs the fusion process via peptide-membrane interactions, but the length of the PEG spacer plays two competing roles: a PEG4/PEG8 spacer length is optimal for membrane destabilization; however, a PEG12 spacer increases the fusion efficiency over time by improving the peptide accessibility for successive fusion events. Both the anchor type and spacer length affect the peptide structure; a cholesterol anchor appears to enhance K3-membrane interactions and thus mediates fusion more efficiently.
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Affiliation(s)
- Geert
A. Daudey
- Supramolecular and Biomaterials Chemistry, Leiden
Institute of Chemistry, Leiden University, P.O. Box 9502, 2300 RA Leiden, The Netherlands
| | | | | | - Alexander Kros
- Supramolecular and Biomaterials Chemistry, Leiden
Institute of Chemistry, Leiden University, P.O. Box 9502, 2300 RA Leiden, The Netherlands
| | - Aimee L. Boyle
- Supramolecular and Biomaterials Chemistry, Leiden
Institute of Chemistry, Leiden University, P.O. Box 9502, 2300 RA Leiden, The Netherlands
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6
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Janus dendrimersomes coassembled from fluorinated, hydrogenated, and hybrid Janus dendrimers as models for cell fusion and fission. Proc Natl Acad Sci U S A 2017; 114:E7045-E7053. [PMID: 28784782 DOI: 10.1073/pnas.1708380114] [Citation(s) in RCA: 140] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
Abstract
A three-component system of Janus dendrimers (JDs) including hydrogenated, fluorinated, and hybrid hydrogenated-fluorinated JDs are reported to coassemble by film hydration at specific ratios into an unprecedented class of supramolecular Janus particles (JPs) denoted Janus dendrimersomes (JDSs). They consist of a dumbbell-shaped structure composed of an onion-like hydrogenated vesicle and an onion-like fluorinated vesicle tethered together. The synthesis of dye-tagged analogs of each JD component enabled characterization of JDS architectures with confocal fluorescence microscopy. Additionally, a simple injection method was used to prepare submicron JDSs, which were imaged with cryogenic transmission electron microscopy (cryo-TEM). As reported previously, different ratios of the same three-component system yielded a variety of structures including homogenous onion-like vesicles, core-shell structures, and completely self-sorted hydrogenated and fluorinated vesicles. Taken together with the JDSs reported herein, a self-sorting pathway is revealed as a function of the relative concentration of the hybrid JD, which may serve to stabilize the interface between hydrogenated and fluorinated bilayers. The fission-like pathway suggests the possibility of fusion and fission processes in biological systems that do not require the assistance of proteins but instead may result from alterations in the ratios of membrane composition.
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7
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Whitehead SA, McNitt CD, Mattern-Schain SI, Carr AJ, Alam S, Popik VV, Best MD. Artificial Membrane Fusion Triggered by Strain-Promoted Alkyne-Azide Cycloaddition. Bioconjug Chem 2017; 28:923-932. [PMID: 28248084 PMCID: PMC5990007 DOI: 10.1021/acs.bioconjchem.6b00578] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Artificial systems for controlled membrane fusion applicable for drug delivery would ideally use triggers that are orthogonal to biology. To apply the strain-promoted alkyne-azide cycloaddition (SPAAC) to drive membrane fusion, oxo-dibenzocyclooctyne (ODIBO)-lipid 1 was designed, synthesized, and studied alongside azadibenzocyclooctyne (ADIBO)-lipids 2-4 to assess fusion with liposomes containing azido-lipid 5. Lipids 1-2 were first shown to be effective for liposome derivatization. Next, fusion was evaluated using liposomes containing 1 and varying ratios of PC and PE via a FRET dilution fusion assay, and a 1:1 PC-to-PE ratio yielded the greatest signal change attributed to fusion. Finally, lipids 1-4 were compared, and 1 yielded the greatest triggering of fusion, while 2-4 yielded varying efficacies depending on the structural features of each lipid. Fusion was further validated through STEM studies showing larger multilamellar assemblies after liposome mixing, and FRET assay results supporting the mixing of liposome aqueous contents. This work provides a platform for triggered fusion toward drug delivery applications and an understanding of the effects of lipid structure and membrane composition on fusion.
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Affiliation(s)
- Stuart A Whitehead
- Department of Chemistry, University of Tennessee , Knoxville, Tennessee 37996, United States
| | - Christopher D McNitt
- Department of Chemistry, The University of Georgia , Athens, Georgia 30602, United States
| | - Samuel I Mattern-Schain
- Department of Chemistry, University of Tennessee , Knoxville, Tennessee 37996, United States
| | - Adam J Carr
- Department of Chemistry, University of Tennessee , Knoxville, Tennessee 37996, United States
| | - Shahrina Alam
- Department of Chemistry, University of Tennessee , Knoxville, Tennessee 37996, United States
| | - Vladimir V Popik
- Department of Chemistry, The University of Georgia , Athens, Georgia 30602, United States
| | - Michael D Best
- Department of Chemistry, University of Tennessee , Knoxville, Tennessee 37996, United States
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8
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Carugo D, Aron M, Sezgin E, Bernardino de la Serna J, Kuimova MK, Eggeling C, Stride E. Modulation of the molecular arrangement in artificial and biological membranes by phospholipid-shelled microbubbles. Biomaterials 2017; 113:105-117. [DOI: 10.1016/j.biomaterials.2016.10.034] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2016] [Revised: 10/22/2016] [Accepted: 10/23/2016] [Indexed: 12/17/2022]
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9
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da Silva RMP, van der Zwaag D, Albertazzi L, Lee SS, Meijer EW, Stupp SI. Super-resolution microscopy reveals structural diversity in molecular exchange among peptide amphiphile nanofibres. Nat Commun 2016; 7:11561. [PMID: 27194204 PMCID: PMC4874009 DOI: 10.1038/ncomms11561] [Citation(s) in RCA: 105] [Impact Index Per Article: 13.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2015] [Accepted: 04/08/2016] [Indexed: 12/22/2022] Open
Abstract
The dynamic behaviour of supramolecular systems is an important dimension of their potential functions. Here, we report on the use of stochastic optical reconstruction microscopy to study the molecular exchange of peptide amphiphile nanofibres, supramolecular systems known to have important biomedical functions. Solutions of nanofibres labelled with different dyes (Cy3 and Cy5) were mixed, and the distribution of dyes inserting into initially single-colour nanofibres was quantified using correlative image analysis. Our observations are consistent with an exchange mechanism involving monomers or small clusters of molecules inserting randomly into a fibre. Different exchange rates are observed within the same fibre, suggesting that local cohesive structures exist on the basis of β-sheet discontinuous domains. The results reported here show that peptide amphiphile supramolecular systems can be dynamic and that their intermolecular interactions affect exchange patterns. This information can be used to generate useful aggregate morphologies for improved biomedical function. Dynamic behaviour in supramolecular systems is an important aspect of their functionality. Here, the authors use stochastic optical reconstruction microscopy to unveil structural diversity in self-assembled peptide amphiphile nanofibres, with potential relevance to biomedical applications.
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Affiliation(s)
- Ricardo M P da Silva
- Simpson Querrey Institute for BioNanotechnology (SQI), Northwestern University, Chicago, Illinois 60611, USA.,Laboratory of Macromolecular and Organic Chemistry and Institute for Complex Molecular Systems, Eindhoven University of Technology, Eindhoven MB 5600, The Netherlands.,Craniofacial Development &Stem Cell Biology, King's College London, London, SE1 9RT, UK
| | - Daan van der Zwaag
- Laboratory of Macromolecular and Organic Chemistry and Institute for Complex Molecular Systems, Eindhoven University of Technology, Eindhoven MB 5600, The Netherlands
| | - Lorenzo Albertazzi
- Laboratory of Macromolecular and Organic Chemistry and Institute for Complex Molecular Systems, Eindhoven University of Technology, Eindhoven MB 5600, The Netherlands.,Nanoscopy for Nanomedicine Group, Institute for Bioengineering of Catalonia (IBEC), Barcelona 08028, Spain
| | - Sungsoo S Lee
- Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208, USA
| | - E W Meijer
- Laboratory of Macromolecular and Organic Chemistry and Institute for Complex Molecular Systems, Eindhoven University of Technology, Eindhoven MB 5600, The Netherlands
| | - Samuel I Stupp
- Simpson Querrey Institute for BioNanotechnology (SQI), Northwestern University, Chicago, Illinois 60611, USA.,Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208, USA.,Department of Chemistry, Northwestern University, Evanston, Illinois 60208, USA.,Department of Medicine, Northwestern University, Chicago, Illinois 60611, USA.,Department of Biomedical Engineering, Northwestern University, Evanston, Illinois 60208, USA
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10
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Zheng T, Bulacu M, Daudey G, Versluis F, Voskuhl J, Martelli G, Raap J, Sevink GJA, Kros A, Boyle AL. A non-zipper-like tetrameric coiled coil promotes membrane fusion. RSC Adv 2016. [DOI: 10.1039/c5ra26175a] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A parallel heterodimeric coiled coil can be mutated to an antiparallel tetrameric species by reversing the sequences of one of the peptides. This tetramer is capable of facilitating fast, efficient, membrane fusion of liposomes.
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Affiliation(s)
- Tingting Zheng
- Supramolecular and Biomaterials Chemistry
- Leiden Institute of Chemistry
- Leiden University
- Leiden
- The Netherlands
| | | | - Geert Daudey
- Supramolecular and Biomaterials Chemistry
- Leiden Institute of Chemistry
- Leiden University
- Leiden
- The Netherlands
| | - Frank Versluis
- Supramolecular and Biomaterials Chemistry
- Leiden Institute of Chemistry
- Leiden University
- Leiden
- The Netherlands
| | - Jens Voskuhl
- Supramolecular and Biomaterials Chemistry
- Leiden Institute of Chemistry
- Leiden University
- Leiden
- The Netherlands
| | - Giuliana Martelli
- Supramolecular and Biomaterials Chemistry
- Leiden Institute of Chemistry
- Leiden University
- Leiden
- The Netherlands
| | - Jan Raap
- Supramolecular and Biomaterials Chemistry
- Leiden Institute of Chemistry
- Leiden University
- Leiden
- The Netherlands
| | - G. J. Agur Sevink
- Solid State NMR
- Leiden Institute of Chemistry
- Leiden University
- Leiden
- The Netherlands
| | - Alexander Kros
- Supramolecular and Biomaterials Chemistry
- Leiden Institute of Chemistry
- Leiden University
- Leiden
- The Netherlands
| | - Aimee L. Boyle
- Supramolecular and Biomaterials Chemistry
- Leiden Institute of Chemistry
- Leiden University
- Leiden
- The Netherlands
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11
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Šekutor M, Štimac A, Mlinarić-Majerski K, Frkanec R. Syntheses and characterization of liposome-incorporated adamantyl aminoguanidines. Org Biomol Chem 2015; 12:6005-13. [PMID: 24988293 DOI: 10.1039/c4ob00592a] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
A series of mono and bis-aminoguanidinium adamantane derivatives has been synthesized and incorporated into liposomes. They combine two biomedically significant molecules, the adamantane moiety and the guanidinium group. The adamantane moiety possesses the membrane compatible features while the cationic guanidinium subunit was recognized as a favourable structural feature for binding to complementary molecules comprising phosphate groups. The liposome formulations of adamantyl aminoguanidines were characterized and it was shown that the entrapment efficiency of the examined compounds is significant. In addition, it was demonstrated that liposomes with incorporated adamantyl aminoguanidines effectively recognized the complementary liposomes via the phosphate group. These results indicate that adamantane derivatives bearing guanidinium groups might be versatile tools for biomedical application, from studies of molecular recognition processes to usage in drug formulation and cell targeting.
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Affiliation(s)
- Marina Šekutor
- Department of Organic Chemistry and Biochemistry, Ruđer Bošković Institute, Bijenička cesta 54, 10000 Zagreb, Croatia.
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12
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Paleos CM, Pantos A. Molecular recognition and organizational and polyvalent effects in vesicles induce the formation of artificial multicompartment cells as model systems of eukaryotes. Acc Chem Res 2014; 47:1475-82. [PMID: 24735049 DOI: 10.1021/ar4002679] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
Researchers have become increasingly interested in the preparation and characterization of artificial cells based on amphiphilic molecules. In particular, artificial cells with multiple compartments are primitive mimics of the structure of eukaryotic cells. Endosymbiotic theory, widely accepted among biologists, states that eukaryotic cells arose from the assembly of prokaryotic cells inside other cells. Therefore, replicating this process in a synthetic system could allow researchers to model molecular and supramolecular processes that occur in living cells, shed light on mass and energy transport through cell membranes, and provide a unique, isolated space for conducting chemical reactions. In addition, such structures can serve as drug delivery systems that encapsulate both bioactive and nonbiocompatible compounds. In this Account, we present various coating, incubation, and electrofusion strategies for forming multicompartment vesicle systems, and we are focusing on strategies that rely on involving molecular recognition of complementary vesicles. All these methods afforded multicompartment systems with similar structures, and these nanoparticles have potential applications as drug delivery systems or nanoreactors for conducting diverse reactions. The complementarity of interacting vesicles allows these artificial cells to form, and the organization and polyvalency of these interacting vesicles further promote their formation. The incorporation of cholesterol in the bilayer membrane and the introduction of PEG chains at the surface of the interacting vesicles also support the structure of these multicompartment systems. PEG chains appear to destabilize the bilayers, which facilitates the fusion and transport of the small vesicles to the larger ones. Potential applications of these well-structured and reproducibly produced multicompartment systems include drug delivery, where researchers could load a cocktail of drugs within the encapsulated vesicles, a process that could enhance the bioavailability of these substances. In addition, the production of artificial cells with multiple compartments provides a platform where researchers could carry out individual reactions in small, isolated spaces. Such a reactive space can avoid problems that occur when the environment can be destructive to reactants or products or when a diverse set of compounds difficult to obtain in a conventional reactor space are produced. Our work on these artificial cells with multicompartment structures also led us to formulate a hypothesis on the processes that possibly generated eukaryotic cells. We hope both that our research efforts will excite interest in these nanoparticles and that this research could lead to systems designed for specific scientific and technological applications and further insights into the evolution of eukaryotic cells.
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Affiliation(s)
- Constantinos M. Paleos
- National Center For Scientific Research “Demokritos”, 15310 Aghia Paraskevi, Attiki, Greece
| | - A. Pantos
- National Center For Scientific Research “Demokritos”, 15310 Aghia Paraskevi, Attiki, Greece
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13
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Himmelein S, Sporenberg N, Schönhoff M, Ravoo BJ. Size-selective permeation of water-soluble polymers through the bilayer membrane of cyclodextrin vesicles investigated by PFG-NMR. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2014; 30:3988-3995. [PMID: 24650278 DOI: 10.1021/la500226z] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Cyclodextrin vesicles (CDVs) consist of a bilayer of amphiphilic cyclodextrins (CDs). CDVs exhibit CD cavities at their surface that are able to recognize and bind hydrophobic guest molecules via size-selective inclusion. In this study, the permeability of α- and β-CDVs is investigated by pulsed field gradient-stimulated echo (PFG-STE) nuclear magnetic resonance. Diffusion experiments with water and two types of water-soluble polymers, polyethylene glycol (PEG) and polypropylene glycol (PPG), revealed three main factors that influence the exchange rate and permeability of CDVs. First, the length of the hydrophobic chain of the CD amphiphile plays a crucial role. Reasonably, vesicles consisting of amphiphiles with a longer aliphatic chain are less permeable since both membrane thickness and melting temperature T(m) increase. Second, the exchange rate through the bilayer membrane depends on the molecular weight of the polymer and decreases with increasing weight of the polymer. Most interestingly, a size-selective distinction of permeation due to the embedded CDs in the bilayer membrane was found. The mechanism of permeation is shown to occur through the CD cavity, such that depending on the size of the cavity, permeation of polymers with different cross-sectional diameters takes place. Whereas PPG permeates through the membrane of β-CD vesicles, it does not permeate α-CD vesicles.
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Affiliation(s)
- Sabine Himmelein
- Organic Chemistry Institute and Graduate School of Chemistry, Westfälische Wilhelms-Universität Münster , Corrensstraße 40, 48149 Münster, Germany
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14
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Abstract
Lipid membrane fusion is a fundamental noncovalent transformation as well as a central process in biology. The complex and highly controlled biological machinery of fusion has been the subject of intense investigation. In contrast, fewer synthetic approaches that demonstrate selective membrane fusion have been developed. Artificial recapitulation of membrane fusion is an informative pursuit in that fundamental biophysical concepts of biomembrane merger may be generally tested in a controlled reductionist system. A key concept that has emerged from extensive studies on lipid biophysics and biological membrane fusion is that selective membrane fusion derives from the coupling of surface recognition with local membrane disruption, or strain. These observations from native systems have guided the development of de novo-designed biomimetic membrane fusion systems that have unequivocally established the generality of these concepts in noncovalent chemistry. In this Account, we discuss the function and limitations of the artificial membrane fusion systems that have been constructed to date and the insights gained from their study by our group and others. Overall, the synthetic systems are highly reductionist and chemically selective, though there remain aspects of membrane fusion that are not sufficiently understood to permit designed function. In particular, membrane fusion with efficient retention of vesicular contents within the membrane-bound compartments remains a challenge. We discuss examples in which lipid mixing and some degree of vesicle-contents mixing is achieved, but the determinants of aqueous-compartment mixing remain unclear and therefore are difficult to generally implement. The ability to fully design membrane fusogenic function requires a deeper understanding of the biophysical underpinnings of membrane fusion, which has not yet been achieved. Thus, it is critical that biological and synthetic studies continue to further elucidate this biologically important process. Examination of lipid membrane fusion from a synthetic perspective can also reveal the governing noncovalent principles that drive chemically determined release and controlled mixing within nanometer-scale compartments. These are processes that figure prominently in numerous biotechnological and chemical applications. A rough guide to the construction of a functional membrane fusion system may already be assembled from the existing studies: surface-directed membrane apposition may generally be elaborated into selective fusion by coupling to a membrane-disruptive element, as observed over a range of systems that include small-molecule, DNA, or peptide fusogens. Membrane disruption may take different forms, and we briefly describe our investigation of the sequence determinants of fusion and lysis in membrane-active viral fusion peptide variants. These findings set the stage for further investigation of the critical elements that enable efficient, fully functional fusion of both membrane and aqueous compartments and the application of these principles to unite synthetic and biological membranes in a directed fashion. Controlled fusion of artificial and living membranes remains a chemical challenge that is biomimetic of native chemical transport and has a direct impact on drug delivery approaches.
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Affiliation(s)
- Mingming Ma
- David H. Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Dennis Bong
- Department of Chemistry and Biochemistry, The Ohio State University, 100 West 18th Avenue, Columbus, Ohio 43210, United States
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Piao X, Xia X, Bong D. Bifacial peptide nucleic acid directs cooperative folding and assembly of binary, ternary, and quaternary DNA complexes. Biochemistry 2013; 52:6313-23. [PMID: 23964711 DOI: 10.1021/bi4008963] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
We report herein the structuring of single-stranded thymine-rich DNA sequences into peptide-DNA hairpin triplex structures via designed melamine-thymine nucleobase recognition. Melamine-displaying α-peptides were synthesized with the general form (EM*)n, where M* denotes a lysine residue side chain derivatized with melamine, a bifacial hydrogen bond complement for thymine. We have found that (EM*)n peptides, which we term bifacial peptide nucleic acid (bPNA), function as a noncovalent template for thymine-rich DNA tracts. Unstructured DNA of the general form dTnCmTn are bound to (EM*)n peptides and fold into cooperatively melting 1:1 bPNA-DNA hairpin complexes with dissociation constants in the submicromolar to low nanomolar range for n = 4-10. As the length of the interface (n) is decreased, the melting temperature of the bPNA-DNA complex drops significantly, though Kd increases are less substantial, suggestive of strong enthalpy-entropy compensation. This is borne out by differential scanning calorimetry analysis, which indicates enthalpically driven bPNA-DNA base-stacking that becomes markedly less exothermic as the recognition surface n decreases in size. The recognition interface tolerates a high number of "mismatches" and indicates half-site, or monofacial, recognition between melamine and thymine may occur if only 1 complementary nucleobase is available. Association correlates directly with fractional thymine content, with optimal binding when the number of T-T sites match the number of melamine units. Interestingly, when a DNA host has more T-T sites than melamine sites on bPNA, two or three bPNAs can bind to a single DNA, resulting in ternary and quaternary complexes that have higher thermal stability than the binary (1:1) bPNA-DNA complex, suggestive of cooperative multisite binding. In contrast, when two bPNAs of different lengths bind to the same DNA host, a ternary complex is formed with two melting transitions, corresponding to independent melting of each bPNA component from the complex. These data demonstrate that melamine-displaying bPNA recognize thymine-rich DNA in predictable and multifaceted ways that allow binding affinity, structure stability, and stoichiometry to be tuned through simple bPNA length modification and matching with DNA length. Synthetic bPNA structuring elements may be useful tools for biotechnology.
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Affiliation(s)
- Xijun Piao
- Department of Chemistry and Biochemistry, The Ohio State University , 100 West 18th Avenue, Columbus, Ohio 43210, United States
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Formation of artificial multicompartment vesosome and dendrosome as prospected drug and gene delivery carriers. J Control Release 2013; 170:141-52. [DOI: 10.1016/j.jconrel.2013.05.011] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2013] [Revised: 05/15/2013] [Accepted: 05/16/2013] [Indexed: 12/11/2022]
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Suzuki K, Aboshi R, Kurihara K, Sugawara T. Adhesion and Fusion of Two Kinds of Phospholipid Hybrid Vesicles Controlled by Surface Charges of Vesicular Membranes. CHEM LETT 2012. [DOI: 10.1246/cl.2012.789] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Kentaro Suzuki
- Research Center of Life Science as Complex Systems, The University of Tokyo
| | - Ryo Aboshi
- Department of Basic Science, Graduate School of Arts and Sciences, The University of Tokyo
| | - Kensuke Kurihara
- Department of Basic Science, Graduate School of Arts and Sciences, The University of Tokyo
| | - Tadashi Sugawara
- Research Center of Life Science as Complex Systems, The University of Tokyo
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Jin H, Huang W, Zheng Y, Zhou Y, Yan D. Construction of Macroscopic Cytomimetic Vesicle Aggregates Based on Click Chemistry: Controllable Vesicle Fusion and Phase Separation. Chemistry 2012; 18:8641-6. [DOI: 10.1002/chem.201201401] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2012] [Indexed: 12/31/2022]
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Paleos CM, Tsiourvas D, Sideratou Z. Preparation of multicompartment lipid-based systems based on vesicle interactions. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2012; 28:2337-2346. [PMID: 21988476 DOI: 10.1021/la2027187] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Various strategies for constructing artificial multicompartment vesicular systems, which primitively mimic the structure of eukaryotic cells, are presented. These model systems are appropriate for addressing several issues such as the understanding of cell processes, the development of nanoreactors and novel multicompartment delivery systems for specific drug applications, the transport through bilayer membranes, and also hypothesizing on the evolution of eukaryotic cells as originating from the symbiotic association of prokaryotes.
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Jin H, Liu Y, Zheng Y, Huang W, Zhou Y, Yan D. Cytomimetic large-scale vesicle aggregation and fusion based on host-guest interaction. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2012; 28:2066-2072. [PMID: 22129210 DOI: 10.1021/la203857s] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Herein, we have shown a large-scale cell-mimetic (cytomimetic) aggregation process by using cell-sized polymer vesicles as the building blocks and intervesicular host-guest molecular recognition interactions as the driving force. We first prepared the hyperbranched polymer vesicles named branched polymersomes (BPs) around 5-10 μm through the aqueous self-assembly of a hyperbranched multiarm copolymer of HBPO-star-PEO [HBPO = hyperbranched poly(3-ethyl-3-oxetanemethanol); PEO = poly(ethylene oxide)]. Subsequently, adamantane-functionalized BPs (Ada-BPs) or β-cyclodextrin-functionalized BPs (CD-BPs) were prepared through the coassembly of HBPO-star-PEO and Ada-modified HBPO-star-PEO (HBPO-star-PEO-Ada), or of HBPO-star-PEO and CD-modified HBPO-star-PEO (HBPO-star-PEO-CD), respectively. Macroscopic vesicle aggregates were obtained by mixing CD-BPs and Ada-BPs. The intervesicular host-guest recognition interactions between β-CD units in CD-BPs and Ada units in Ada-BPs, which were proved by (1)H nuclear Overhauser effect spectroscopy (NOESY) spectrum and the fluorescence probe method, are responsible for the vesicle aggregation. Additionally, the vesicle fusion events happened frequently in the process of vesicle aggregation, which were certified by double-labeling fluorescent assay, real-time observation, content mixing assay, and component mixing assay.
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Affiliation(s)
- Haibao Jin
- School of Chemistry and Chemical Engineering, State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, PR China
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Loosli F, Doval DA, Grassi D, Zaffalon PL, Favarger F, Zumbuehl A. Clickosomes—using triazole-linked phospholipid connectors to fuse vesicles. Chem Commun (Camb) 2012; 48:1604-6. [DOI: 10.1039/c2cc16827h] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Dutta D, Pulsipher A, Luo W, Mak H, Yousaf MN. Engineering cell surfaces via liposome fusion. Bioconjug Chem 2011; 22:2423-33. [PMID: 22054009 DOI: 10.1021/bc200236m] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
In this study, we have rewired cell surfaces with ketone and oxyamine molecules based on liposome fusion for applications in cell-surface engineering. Lipid vesicles, functionalized with ketone and oxyamine molecules, display complementary chemistry and undergo recognition, docking, and subsequent fusion upon covalent oxime bond formation. Liposome fusion was characterized by several techniques including matrix-assisted laser-desorption/ionization mass spectrometry (MALDI-MS), light scattering, fluorescence resonance energy transfer (FRET), and transmission electron microscopy (TEM). When cultured with cells, ketone- and oxyamine-containing liposomes undergo spontaneous membrane fusion to present the respective molecules from cell surfaces. Ketone-functionalized cell surfaces serve as sites for chemoselective ligation with oxyamine-conjugated molecules. We tailored and fluorescently labeled cell surfaces with an oxyamine-conjugated rhodamine dye. As an application of this cell-surface engineering strategy, ketone- and oxyamine-functionalized cells were patterned on oxyamine- and ketone-presenting surfaces, respectively. Cells adhered, spread, and proliferated in the patterned regions via interfacial oxime linkage. The number of ketone molecules on the cell surface was also quantified by flow cytometry.
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Affiliation(s)
- Debjit Dutta
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599-3290, United States
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Tayebi L, Vashaee D, Parikh AN. Stability of Uni- and Multillamellar Spherical Vesicles. Chemphyschem 2011; 13:314-22. [DOI: 10.1002/cphc.201100573] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2011] [Indexed: 01/08/2023]
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Jin H, Zheng Y, Liu Y, Cheng H, Zhou Y, Yan D. Reversible and Large-Scale Cytomimetic Vesicle Aggregation: Light-Responsive Host-Guest Interactions. Angew Chem Int Ed Engl 2011. [DOI: 10.1002/ange.201103164] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Jin H, Zheng Y, Liu Y, Cheng H, Zhou Y, Yan D. Reversible and Large-Scale Cytomimetic Vesicle Aggregation: Light-Responsive Host-Guest Interactions. Angew Chem Int Ed Engl 2011; 50:10352-6. [DOI: 10.1002/anie.201103164] [Citation(s) in RCA: 105] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2011] [Indexed: 11/08/2022]
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Ma M, Bong D. Determinants of cyanuric acid and melamine assembly in water. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2011; 27:8841-8853. [PMID: 21688852 DOI: 10.1021/la201415d] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
While the recognition of cyanuric acid (CA) by melamine (M) and their derivatives has been known to occur in both water and organic solvents for some time, analysis of CA/M assembly in water has not been reported (Ranganathan, A.; Pedireddi, V. R.; Rao, C. N. R. J. Am. Chem. Soc.1999, 121, 1752-1753; Mathias, J. P.; Simanek, E. E.; Seto, C. T.; Whitesides, G. M. Macromol. Symp.1994, 77, 157-166; Zerkowski, J. A.; MacDonald, J. C.; Seto, C. T.; Wierda, D. A.; Whitesides, G. M. J. Am. Chem. Soc.1994, 116, 2382-2391; Mathias, J. P.; Seto, C. T.; Whitesides, G. M. Polym. Prepr.1993, 34, 92-93; Seto, C. T.; Whitesides, G. M. J. Am. Chem. Soc.1993, 115, 905-916; Zerkowski, J. A.; Seto, C. T.; Whitesides, G. M. J. Am. Chem. Soc.1992, 114, 5473-5475; Seto, C. T.; Whitesides, G. M. J. Am. Chem. Soc.1990, 112, 6409-6411; Wang, Y.; Wei, B.; Wang, Q. J. Chem. Cryst.1990, 20, 79-84; ten Cate, M. G. J.; Huskens, J.; Crego-Calama, M.; Reinhoudt, D. N. Chem.-Eur. J.2004, 10, 3632-3639). We have examined assembly of CA/M, as well as assembly of soluble trivalent CA and M derivatives (TCA/TM), in aqueous solvent, using a combination of solution phase NMR, isothermal titration and differential scanning calorimetry (ITC/DSC), cryo-transmission electron microscopy (cryo-TEM), and synthetic chemistry. While the parent heterocycles coprecipitate in water, the trivalent system displays more controlled and cooperative assembly that occurs at lower concentrations than the parent and yields a stable nanoparticle suspension. The assembly of both parent and trivalent systems is rigorously 1:1 and proceeds as an exothermic, proton-transfer coupled process in neutral pH water. Though CA and M are considered canonical hydrogen-bonding motifs in organic solvents, we find that their assembly in water is driven in large part by enthalpically favorable surface-area burial, similar to what is observed with nucleic acid recognition. There are currently few synthetic systems capable of robust molecular recognition in water that do not rely on native recognition motifs, possibly due to an incomplete understanding of recognition processes in water. This study establishes a detailed conceptual framework for considering CA/M heterocycle recognition in water which enables the future design of molecular recognition systems that function in water.
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Affiliation(s)
- Mingming Ma
- Department of Chemistry, The Ohio State University, Columbus, Ohio 43210, United States
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Kashiwada A, Tsuboi M, Takamura N, Brandenburg E, Matsuda K, Koksch B. Design and Characterization of Endosomal‐pH‐Responsive Coiled Coils for Constructing an Artificial Membrane Fusion System. Chemistry 2011; 17:6179-86. [DOI: 10.1002/chem.201003392] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2010] [Indexed: 11/07/2022]
Affiliation(s)
- Ayumi Kashiwada
- Department of Applied Molecular Chemistry, College of Industrial Technology, Nihon University, 1‐2‐1 Izumi‐cho, Narashino, Chiba 275‐8575 (Japan), Fax: (+81) 47‐474‐2579
| | - Mana Tsuboi
- Department of Applied Molecular Chemistry, College of Industrial Technology, Nihon University, 1‐2‐1 Izumi‐cho, Narashino, Chiba 275‐8575 (Japan), Fax: (+81) 47‐474‐2579
| | - Naohide Takamura
- Department of Applied Molecular Chemistry, College of Industrial Technology, Nihon University, 1‐2‐1 Izumi‐cho, Narashino, Chiba 275‐8575 (Japan), Fax: (+81) 47‐474‐2579
| | - Enrico Brandenburg
- Institute für Chemie und Biochemie, Freie Universität Berlin, Takustrasse 3, 14195 Berlin (Germany)
| | - Kiyomi Matsuda
- Department of Applied Molecular Chemistry, College of Industrial Technology, Nihon University, 1‐2‐1 Izumi‐cho, Narashino, Chiba 275‐8575 (Japan), Fax: (+81) 47‐474‐2579
| | - Beate Koksch
- Institute für Chemie und Biochemie, Freie Universität Berlin, Takustrasse 3, 14195 Berlin (Germany)
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Paleos CM, Tsiourvas D, Sideratou Z. Interaction of Vesicles: Adhesion, Fusion and Multicompartment Systems Formation. Chembiochem 2011; 12:510-21. [DOI: 10.1002/cbic.201000614] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2010] [Indexed: 11/06/2022]
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Kashiwada A, Tsuboi M, Matsuda K. Target-selective one-way membrane fusion system based on a pH-responsive coiled coil assembly at the interface of liposomal vesicles. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2011; 27:1403-1408. [PMID: 21058731 DOI: 10.1021/la103908u] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
The coiled coil trimer structure is a common motif observed in membrane fusion processes of specific fusion proteins such as the hemagglutinin glycoprotein. The HA2 subunit in the hemagglutinin changes its conformation or geometry to be favorable to membrane fusion in response to endosomal weakly acidic pH. This pH responsiveness is indispensable to an artificial polypeptide-triggered delivery system as well as the membrane fusion reaction in biology. In this study, we have constructed an AAB-type coiled coil heteroassembled system that is sensitive to weakly acidic pH. The heterotrimer is formed from two kinds of polypeptides containing an Ala or a Trp residue at a hydrophobic a position, and it was observed that the Glu residue at the other a position induced an acidic pH-dependent conformational change. On the basis of this pH-responsive coiled coil heteroassembled system, a boronic acid coupled working polypeptide for the combination of an intervesicular complex with a sugarlike compound on the surface of the target liposome, and a supporting polypeptide for the construction of a pH-responsive heterotrimer with the working polypeptide were designed and synthesized. The process of membrane fusion was characterized by lipid-mixing, inner-leaflet lipid-mixing, and content-mixing assays. The target selective vesicle fusion is clearly observed at a weakly acidic pH, where the working polypeptides form a heterotrimeric coiled coil with the supporting polypeptides in a 1:2 binding stoichiometry and the surfaces between pilot and target vesicles come into close proximity to each other.
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Affiliation(s)
- Ayumi Kashiwada
- Department of Applied Molecular Chemistry, Graduate School of Industrial Technology, Nihon University, Narashino, Chiba, Japan.
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Constitutional Dynamic Chemistry: Bridge from Supramolecular Chemistry to Adaptive Chemistry. CONSTITUTIONAL DYNAMIC CHEMISTRY 2011; 322:1-32. [DOI: 10.1007/128_2011_256] [Citation(s) in RCA: 70] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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Hadorn M, Eggenberger Hotz P. Encapsulated Multi-vesicle Assemblies of Programmable Architecture: Towards Personalized Healthcare. BIOMEDICAL ENGINEERING SYSTEMS AND TECHNOLOGIES 2011. [DOI: 10.1007/978-3-642-18472-7_11] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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Mohan Nalluri SK, Bultema JB, Boekema EJ, Ravoo BJ. Metal ion responsive adhesion of vesicles by conformational switching of a non-covalent linker. Chem Sci 2011. [DOI: 10.1039/c1sc00422k] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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Voskuhl J, Fenske T, Stuart M, Wibbeling B, Schmuck C, Ravoo B. Molecular Recognition of Vesicles: Host-Guest Interactions Combined with Specific Dimerization of Zwitterions. Chemistry 2010; 16:8300-6. [DOI: 10.1002/chem.201000623] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Hadorn M, Eggenberger Hotz P. DNA-mediated self-assembly of artificial vesicles. PLoS One 2010; 5:e9886. [PMID: 20360854 PMCID: PMC2845621 DOI: 10.1371/journal.pone.0009886] [Citation(s) in RCA: 59] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2009] [Accepted: 03/04/2010] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND Although multicompartment systems made of single unilamellar vesicles offer the potential to outperform single compartment systems widely used in analytic, synthetic, and medical applications, their use has remained marginal to date. On the one hand, this can be attributed to the binary character of the majority of the current tethering protocols that impedes the implementation of real multicomponent or multifunctional systems. On the other hand, the few tethering protocols theoretically providing multicompartment systems composed of several distinct vesicle populations suffer from the readjustment of the vesicle formation procedure as well as from the loss of specificity of the linking mechanism over time. METHODOLOGY/PRINCIPAL FINDINGS In previous studies, we presented implementations of multicompartment systems and resolved the readjustment of the vesicle formation procedure as well as the loss of specificity by using linkers consisting of biotinylated DNA single strands that were anchored to phospholipid-grafted biotinylated PEG tethers via streptavidin as a connector. The systematic analysis presented herein provides evidences for the incorporation of phospholipid-grafted biotinylated PEG tethers to the vesicle membrane during vesicle formation, providing specific anchoring sites for the streptavidin loading of the vesicle membrane. Furthermore, DNA-mediated vesicle-vesicle self-assembly was found to be sequence-dependent and to depend on the presence of monovalent salts. CONCLUSIONS/SIGNIFICANCE This study provides a solid basis for the implementation of multi-vesicle assemblies that may affect at least three distinct domains. (i) Analysis. Starting with a minimal system, the complexity of a bottom-up system is increased gradually facilitating the understanding of the components and their interaction. (ii) Synthesis. Consecutive reactions may be implemented in networks of vesicles that outperform current single compartment bioreactors in versatility and productivity. (iii) Personalized medicine. Transport and targeting of long-lived, pharmacologically inert prodrugs and their conversion to short-lived, active drug molecules directly at the site of action may be accomplished if multi-vesicle assemblies of predefined architecture are used.
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Affiliation(s)
- Maik Hadorn
- Artificial Intelligence Laboratory, Department of Informatics, University of Zurich, Zurich, Switzerland.
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Ma M, Gong Y, Bong D. Lipid membrane adhesion and fusion driven by designed, minimally multivalent hydrogen-bonding lipids. J Am Chem Soc 2010; 131:16919-26. [PMID: 19877659 DOI: 10.1021/ja9072657] [Citation(s) in RCA: 83] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Cyanuric acid (CA) and melamine (M) functionalized lipids can form membranes that exhibit robust hydrogen-bond driven surface recognition in water, facilitated by multivalent surface clustering of recognition groups and variable hydration at the lipid-water interface. Here we describe a minimal lipid recognition cluster: three CA or M recognition groups are forced into proximity by covalent attachment to a single lipid headgroup. This trivalent lipid system guides recognition at the lipid-water interface using cyanurate-melamine hydrogen bonding when incorporated at 0.1-5 mol percent in fluid phospholipid membranes, inducing both vesicle-vesicle binding and membrane fusion. Fusion was accelerated when the antimicrobial peptide magainin was used to anchor trivalent recognition, or when added exogenously to a preassembled lipid vesicle complex, underscoring the importance of coupling recognition with membrane disruption in membrane fusion. Membrane apposition and fusion were studied in vesicle suspensions using light scattering, FRET assays for lipid mixing, surface plasmon resonance, and cryo-electron microscopy. Recognition was found to be highly spatially selective as judged by vesicular adhesion to surface patterned supported lipid bilayers (SLBs). Fusion to SLBs was also readily observed by fluorescence microscopy. Together, these studies indicate effective and functional recognition of trivalent phospholipids, despite low mole percentage concentration, solvent competition for hydrogen bond donor/acceptor sites, and simplicity of structure. This novel designed molecular recognition motif may be useful for directing aqueous-phase assembly and biomolecular interactions.
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Affiliation(s)
- Mingming Ma
- Department of Chemistry, The Ohio State University, Columbus, Ohio 43210, USA
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Sideratou Z, Sterioti N, Tsiourvas D, Paleos CM. Structural Features of Interacting Complementary Liposomes Promoting Formation of Multicompartment Structures. Chemphyschem 2009; 10:3083-9. [DOI: 10.1002/cphc.200900465] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Mart RJ, Liem KP, Webb SJ. Creating Functional Vesicle Assemblies from Vesicles and Nanoparticles. Pharm Res 2009; 26:1701-10. [DOI: 10.1007/s11095-009-9880-8] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2008] [Accepted: 03/19/2009] [Indexed: 10/20/2022]
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Tomas S, Milanesi L. Hydrophobically Self-Assembled Nanoparticles as Molecular Receptors in Water. J Am Chem Soc 2009; 131:6618-23. [DOI: 10.1021/ja900561j] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Salvador Tomas
- School of Biological and Chemical Sciences and School of Crystallography, Birkbeck, University of London, Malet Street, London WC1E 7HX, U.K
| | - Lilia Milanesi
- School of Biological and Chemical Sciences and School of Crystallography, Birkbeck, University of London, Malet Street, London WC1E 7HX, U.K
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Mansfeld FM, Feng G, Otto S. Photo-induced molecular-recognition-mediated adhesion of giant vesicles. Org Biomol Chem 2009; 7:4289-95. [DOI: 10.1039/b910197g] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
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Ma M, Paredes A, Bong D. Intra- and intermembrane pairwise molecular recognition between synthetic hydrogen-bonding phospholipids. J Am Chem Soc 2008; 130:14456-8. [PMID: 18850702 DOI: 10.1021/ja806954u] [Citation(s) in RCA: 75] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Multivalency and preorganization are fundamental aspects of molecular recognition at the lipid membrane-water interface and can render weak monomeric binding interactions selective and robust; this concept is important throughout biology, biotechnology, and materials science. Though hydrogen bonding is typically weakened in water, intramembrane hydrogen bonding between native lipids has been well-studied and is thought to contribute to lipid bioactivity and membrane function. We hypothesized that avidity and preorganization effects at the lipid-water interface could overcome solvent competition and allow for selective hydrogen-bond recognition between small, unstructured components. We have found that electrostatically identical vesicular membranes composed of cyanuric acid and melamine functionalized phospholipids 1 and 2 undergo selective apposition, fusion and adhesion in suspension and on solid support, indicating that their well-known low-dielectric hydrogen bonding properties translate effectively to the lipid-water interface. This work is notable and of general interest given the few detailed studies of aqueous phase hydrogen-bonding systems; we have extensively characterized this system, gaining structural, functional, and thermodynamic data. Furthermore, we have found that the designed lipid-lipid headgroup interactions result in dramatic alteration of the lipid phase morphology, providing insight into the coupling of molecular interactions with assembly state. As such, this work contributes to our understanding of fundamental phenomena such as molecular recognition at the lipid-water interface membrane chemistry and further illustrates the general possibility of designing selective hydrogen-bonding adhesive interactions from simple starting materials at other polar-apolar interfaces; this could have numerous materials and biotechnological applications.
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Affiliation(s)
- Mingming Ma
- Department of Chemistry, Ohio State University, 100 West 18th Avenue, Columbus, Ohio 43210, USA
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Dif A, Henry E, Artzner F, Baudy-Floc’h M, Schmutz M, Dahan M, Marchi-Artzner V. Interaction between Water-Soluble Peptidic CdSe/ZnS Nanocrystals and Membranes: Formation of Hybrid Vesicles and Condensed Lamellar Phases. J Am Chem Soc 2008; 130:8289-96. [DOI: 10.1021/ja711378g] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Aurélien Dif
- Sciences Chimiques de Rennes, CNRS UMR 6226, Université Rennes 1, and Institut de Physique de Rennes, CNRS UMR 6251, Université Rennes 1, 35042 Rennes, France, Institut Charles Sadron, CNRS UPR 22, Université Strasbourg 1, 67083 Strasbourg, France, and Laboratoire Kastler Brossel, CNRS UMR 8552, Ecole Normale Supérieure, 75005 Paris, France
| | - Etienne Henry
- Sciences Chimiques de Rennes, CNRS UMR 6226, Université Rennes 1, and Institut de Physique de Rennes, CNRS UMR 6251, Université Rennes 1, 35042 Rennes, France, Institut Charles Sadron, CNRS UPR 22, Université Strasbourg 1, 67083 Strasbourg, France, and Laboratoire Kastler Brossel, CNRS UMR 8552, Ecole Normale Supérieure, 75005 Paris, France
| | - Franck Artzner
- Sciences Chimiques de Rennes, CNRS UMR 6226, Université Rennes 1, and Institut de Physique de Rennes, CNRS UMR 6251, Université Rennes 1, 35042 Rennes, France, Institut Charles Sadron, CNRS UPR 22, Université Strasbourg 1, 67083 Strasbourg, France, and Laboratoire Kastler Brossel, CNRS UMR 8552, Ecole Normale Supérieure, 75005 Paris, France
| | - Michèle Baudy-Floc’h
- Sciences Chimiques de Rennes, CNRS UMR 6226, Université Rennes 1, and Institut de Physique de Rennes, CNRS UMR 6251, Université Rennes 1, 35042 Rennes, France, Institut Charles Sadron, CNRS UPR 22, Université Strasbourg 1, 67083 Strasbourg, France, and Laboratoire Kastler Brossel, CNRS UMR 8552, Ecole Normale Supérieure, 75005 Paris, France
| | - Marc Schmutz
- Sciences Chimiques de Rennes, CNRS UMR 6226, Université Rennes 1, and Institut de Physique de Rennes, CNRS UMR 6251, Université Rennes 1, 35042 Rennes, France, Institut Charles Sadron, CNRS UPR 22, Université Strasbourg 1, 67083 Strasbourg, France, and Laboratoire Kastler Brossel, CNRS UMR 8552, Ecole Normale Supérieure, 75005 Paris, France
| | - Maxime Dahan
- Sciences Chimiques de Rennes, CNRS UMR 6226, Université Rennes 1, and Institut de Physique de Rennes, CNRS UMR 6251, Université Rennes 1, 35042 Rennes, France, Institut Charles Sadron, CNRS UPR 22, Université Strasbourg 1, 67083 Strasbourg, France, and Laboratoire Kastler Brossel, CNRS UMR 8552, Ecole Normale Supérieure, 75005 Paris, France
| | - Valérie Marchi-Artzner
- Sciences Chimiques de Rennes, CNRS UMR 6226, Université Rennes 1, and Institut de Physique de Rennes, CNRS UMR 6251, Université Rennes 1, 35042 Rennes, France, Institut Charles Sadron, CNRS UPR 22, Université Strasbourg 1, 67083 Strasbourg, France, and Laboratoire Kastler Brossel, CNRS UMR 8552, Ecole Normale Supérieure, 75005 Paris, France
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Gong Y, Ma M, Luo Y, Bong D. Functional Determinants of a Synthetic Vesicle Fusion System. J Am Chem Soc 2008; 130:6196-205. [DOI: 10.1021/ja711184u] [Citation(s) in RCA: 58] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Yun Gong
- Department of Chemistry, The Ohio State University, Columbus, Ohio 43210
| | - Mingming Ma
- Department of Chemistry, The Ohio State University, Columbus, Ohio 43210
| | - Yumei Luo
- Department of Chemistry, The Ohio State University, Columbus, Ohio 43210
| | - Dennis Bong
- Department of Chemistry, The Ohio State University, Columbus, Ohio 43210
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Guanidinium group: A versatile moiety inducing transport and multicompartmentalization in complementary membranes. BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES 2008; 1778:811-23. [DOI: 10.1016/j.bbamem.2007.12.003] [Citation(s) in RCA: 92] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/07/2007] [Revised: 12/06/2007] [Accepted: 12/07/2007] [Indexed: 11/20/2022]
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48
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Maru N, Shohda KI, Sugawara T. Successive Fusion of Vesicles Aggregated by DNA Duplex Formation in the Presence of Triton X-100. CHEM LETT 2008. [DOI: 10.1246/cl.2008.340] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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49
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SNAREpin/Munc18 promotes adhesion and fusion of large vesicles to giant membranes. Proc Natl Acad Sci U S A 2008; 105:2380-5. [PMID: 18268324 DOI: 10.1073/pnas.0712125105] [Citation(s) in RCA: 87] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Exocytic vesicle fusion requires both the SNARE family of fusion proteins and a closely associated regulatory subunit of the Sec1/Munc18 (SM) family. In principle, SM proteins could act at an early SNARE assembly step to promote vesicle-plasma membrane adhesion or at a late step to overcome the energetic barrier for fusion. Here, we use the neuronal cognates of each of these protein families to recapitulate, and distinguish, membrane adhesion and fusion on a novel lipidic platform suitable for imaging by fluorescence microscopy. Vesicle SNARE (v-SNARE) proteins reconstituted into giant vesicles ( approximately 10 mum) are fully mobile and functional. Through confocal microscopy, we observe that large vesicles ( approximately 100 nm) carrying target membrane SNAREs (t-SNAREs) both adhere to and freely move on the surface of the v-SNARE giant vesicle. Under conditions where the intrinsic ability of SNAREs to drive fusion is minimized, Munc18 stimulates both SNARE-dependent stable adhesion and fusion. Furthermore, mutation of a critical Munc18-binding residue on the N terminus of the t-SNARE syntaxin uncouples Munc18-stimulated vesicle adhesion from membrane fusion. We expect that the study of SNARE-mediated fusion with giant membranes will find wide applicability in distinguishing adhesion- and fusion-directed SNARE regulatory factors.
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Tsogas I, Sideratou Z, Tsiourvas D, Theodossiou TA, Paleos CM. Interactive transport of guanidinylated poly(propylene imine)-based dendrimers through liposomal and cellular membranes. Chembiochem 2008; 8:1865-76. [PMID: 17854019 DOI: 10.1002/cbic.200700289] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
The ability of guanidinylated poly(propylene imine) dendrimers to translocate across lipid bilayers was assessed by employing either a model phosphate-bearing liposomal membrane system or A549 human lung carcinoma cells. Two dendrimer generations, differing in the number of surface guanidinium groups, were employed, while surface acetylation or the use of spacers affected the binding of the guanidinium group to the phosphate moiety and finally the transport efficiency. Following adhesion of dendrimers with liposomes, fusion or transport occurred. Transport through the liposomal bilayer was observed at low guanidinium/phosphate molar ratios, and was enhanced when the bilayer was in the liquid-crystalline phase. For effective transport through the liposomal membrane, an optimum balance between the binding strength and the degree of hydrophobicity of the guanidinylated dendrimer is required. In experiments performed in vitro with cells, efficient penetration and internalization in subcellular organelles and cytosol was observed.
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Affiliation(s)
- Ioannis Tsogas
- Institute of Physical Chemistry, NCSR Demokritos, 15310 Aghia Paraskevi, Attiki, Greece
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