1
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Armistead FJ, Batchelor DVB, Johnson BRG, Evans SD. QCM-D Investigations on Cholesterol-DNA Tethering of Liposomes to Microbubbles for Therapy. J Phys Chem B 2023; 127:2466-2474. [PMID: 36917458 PMCID: PMC10041634 DOI: 10.1021/acs.jpcb.2c07256] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/16/2023]
Abstract
Lipid-shelled microbubbles (MBs) offer potential as theranostic agents, capable of providing both contrast enhancement in ultrasound imaging as well as a route for triggered drug release and improved localized drug delivery. A common motif in the design of such therapeutic vehicles is the attachment of the drug carrier, often in the form of liposomes, to the microbubble. Traditionally, such attachments have been based around biotin-streptavidin and maleimide-PDP chemistries. Comparatively, the use of DNA-lipid tethers offers potential advantage. First, their specificity permits the construction of more complex architectures that might include bespoke combinations of different drug-loaded liposomes and/or targeting groups, such as affimers or antibodies. Second, the use of dual-lipid tether strategies should increase the strength of the individual tethers tethering the liposomes to the bubbles. The ability of cholesterol-DNA (cDNA) tethers for conjugation of liposomes to supported lipid bilayers has previously been demonstrated. For in vivo applications, bubbles and liposomes often contain a proportion of polyethylene glycol (PEG) to promote stealth-like properties and increase lifetimes. However, the associated steric effects may hinder tethering of the drug payload. We show that while the presence of PEG reduced the tethering affinity, cDNA can still be used for the attachment of liposomes to a supported lipid bilayer (SLB) as measured via QCM-D. Importantly, we show, for the first time, that QCM-D can be used to study the tethering of microbubbles to SLBs using cDNA, signified by a decrease in the magnitude of the frequency shift compared to liposomes alone due to the reduced density of the MBs. We then replicate this tethering interaction in the bulk and observe attachment of liposomes to the shell of a central MB and hence formation of a model therapeutic microbubble.
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Affiliation(s)
- Fern J Armistead
- Molecular and Nanoscale Physics Group, School of Physics and Astronomy, University of Leeds, Leeds LS2 9JT, United Kingdom
| | - Damien V B Batchelor
- Molecular and Nanoscale Physics Group, School of Physics and Astronomy, University of Leeds, Leeds LS2 9JT, United Kingdom
| | - Benjamin R G Johnson
- Molecular and Nanoscale Physics Group, School of Physics and Astronomy, University of Leeds, Leeds LS2 9JT, United Kingdom
| | - Stephen D Evans
- Molecular and Nanoscale Physics Group, School of Physics and Astronomy, University of Leeds, Leeds LS2 9JT, United Kingdom
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2
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Hao P, Niu L, Luo Y, Wu N, Zhao Y. Surface Engineering of Lipid Vesicles Based on DNA Nanotechnology. Chempluschem 2022; 87:e202200074. [PMID: 35604011 DOI: 10.1002/cplu.202200074] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2022] [Revised: 05/01/2022] [Indexed: 11/09/2022]
Affiliation(s)
- Pengyan Hao
- Xi'an Jiaotong University School of Life Science and Technology CHINA
| | - Liqiong Niu
- Xi'an Jiaotong University School of Life Science and Technology CHINA
| | - Yuanyuan Luo
- Xi'an Jiaotong University School of Life Science and Technology CHINA
| | - Na Wu
- Xi'an Jiaotong University School of Life Science and Technology No.28, West Xianning Road 710049 Xi'an CHINA
| | - Yongxi Zhao
- Xi'an Jiaotong University School of Life Science and Technology CHINA
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3
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Witt H, Savić F, Verbeek S, Dietz J, Tarantola G, Oelkers M, Geil B, Janshoff A. Membrane fusion studied by colloidal probes. EUROPEAN BIOPHYSICS JOURNAL: EBJ 2021; 50:223-237. [PMID: 33599795 PMCID: PMC8071799 DOI: 10.1007/s00249-020-01490-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/27/2020] [Accepted: 12/19/2020] [Indexed: 12/12/2022]
Abstract
Membrane-coated colloidal probes combine the benefits of solid-supported membranes with a more complex three-dimensional geometry. This combination makes them a powerful model system that enables the visualization of dynamic biological processes with high throughput and minimal reliance on fluorescent labels. Here, we want to review recent applications of colloidal probes for the study of membrane fusion. After discussing the advantages and disadvantages of some classical vesicle-based fusion assays, we introduce an assay using optical detection of fusion between membrane-coated glass microspheres in a quasi two-dimensional assembly. Then, we discuss free energy considerations of membrane fusion between supported bilayers, and show how colloidal probes can be combined with atomic force microscopy or optical tweezers to access the fusion process with even greater detail.
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Affiliation(s)
- Hannes Witt
- Institute for Physical Chemistry, University of Göttingen, 37075, Göttingen, Germany.,Physics of Living Systems, Vrije Universiteit Amsterdam, 1081 HV, Amsterdam, The Netherlands
| | - Filip Savić
- Institute for Physical Chemistry, University of Göttingen, 37075, Göttingen, Germany
| | - Sarah Verbeek
- Institute for Physical Chemistry, University of Göttingen, 37075, Göttingen, Germany
| | - Jörn Dietz
- Institute for Physical Chemistry, University of Göttingen, 37075, Göttingen, Germany
| | - Gesa Tarantola
- Institute for Physical Chemistry, University of Göttingen, 37075, Göttingen, Germany
| | - Marieelen Oelkers
- Institute for Physical Chemistry, University of Göttingen, 37075, Göttingen, Germany
| | - Burkhard Geil
- Institute for Physical Chemistry, University of Göttingen, 37075, Göttingen, Germany
| | - Andreas Janshoff
- Institute for Physical Chemistry, University of Göttingen, 37075, Göttingen, Germany.
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4
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Syntaxin Clustering and Optogenetic Control for Synaptic Membrane Fusion. J Mol Biol 2020; 432:4773-4782. [PMID: 32682743 DOI: 10.1016/j.jmb.2020.07.005] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2020] [Revised: 07/05/2020] [Accepted: 07/12/2020] [Indexed: 01/01/2023]
Abstract
Membrane fusion during synaptic transmission mediates the trafficking of chemical signals and neuronal communication. The fast kinetics of membrane fusion on the order of millisecond is precisely regulated by the assembly of SNAREs and accessory proteins. It is believed that the formation of the SNARE complex is a key step during membrane fusion. Little is known, however, about the molecular machinery that mediates the formation of a large pre-fusion complex, including multiple SNAREs and accessory proteins. Syntaxin, a transmembrane protein on the plasma membrane, has been observed to undergo oligomerization to form clusters. Whether this clustering plays a critical role in membrane fusion is poorly understood in live cells. Optogenetics is an emerging biotechnology armed with the capacity to precisely modulate protein-protein interaction in time and space. Here, we propose an experimental scheme that combines optogenetics with single-vesicle membrane fusion, aiming to gain a better understanding of the molecular mechanism by which the syntaxin cluster regulates membrane fusion. We envision that newly developed optogenetic tools could facilitate the mechanistic understanding of synaptic transmission in live cells and animals.
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5
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Dolder N, von Ballmoos C. Bifunctional DNA Duplexes Permit Efficient Incorporation of pH Probes into Liposomes. Chembiochem 2020; 21:2219-2224. [PMID: 32181556 DOI: 10.1002/cbic.202000146] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2020] [Indexed: 11/10/2022]
Abstract
Enzyme-mediated proton transport across biological membranes is critical for many vital cellular processes. pH-sensitive fluorescent dyes are an indispensable tool for investigating the molecular mechanism of proton-translocating enzymes. Here, we present a novel strategy to entrap pH-sensitive probes in the lumen of liposomes that has several advantages over the use of soluble or lipid-coupled probes. In our approach, the pH sensor is linked to a DNA oligomer with a sequence complementary to a second oligomer modified with a lipophilic moiety that anchors the DNA conjugate to the inner and outer leaflets of the lipid bilayer. The use of DNA as a scaffold allows subsequent selective enzymatic removal of the probe in the outer bilayer leaflet. The method shows a high yield of insertion and is compatible with reconstitution of membrane proteins by different methods. The usefulness of the conjugate for time-resolved proton pumping measurements was demonstrated by using two large membrane protein complexes.
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Affiliation(s)
- Nicolas Dolder
- Department of Chemistry and Biochemistry, University of Bern, Freiestrasse 3, 3012, Bern, Switzerland
| | - Christoph von Ballmoos
- Department of Chemistry and Biochemistry, University of Bern, Freiestrasse 3, 3012, Bern, Switzerland
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6
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Xiao F, Chen Z, Wei Z, Tian L. Hydrophobic Interaction: A Promising Driving Force for the Biomedical Applications of Nucleic Acids. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2020; 7:2001048. [PMID: 32832360 PMCID: PMC7435255 DOI: 10.1002/advs.202001048] [Citation(s) in RCA: 51] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/20/2020] [Revised: 05/28/2020] [Indexed: 05/13/2023]
Abstract
The comprehensive understanding and proper use of supramolecular interactions have become critical for the development of functional materials, and so is the biomedical application of nucleic acids (NAs). Relatively rare attention has been paid to hydrophobic interaction compared with hydrogen bonding and electrostatic interaction of NAs. However, hydrophobic interaction shows some unique properties, such as high tunability for application interest, minimal effect on NA functionality, and sensitivity to external stimuli. Therefore, the widespread use of hydrophobic interaction has promoted the evolution of NA-based biomaterials in higher-order self-assembly, drug/gene-delivery systems, and stimuli-responsive systems. Herein, the recent progress of NA-based biomaterials whose fabrications or properties are highly determined by hydrophobic interactions is summarized. 1) The hydrophobic interaction of NA itself comes from the accumulation of base-stacking forces, by which the NAs with certain base compositions and chain lengths show properties similar to thermal-responsive polymers. 2) In conjugation with hydrophobic molecules, NA amphiphiles show interesting self-assembly structures with unique properties in many new biosensing and therapeutic strategies. 3) The working-mechanisms of some NA-based complex materials are also dependent on hydrophobic interactions. Moreover, in recent attempts, NA amphiphiles have been applied in organizing macroscopic self-assembly of DNA origami and controlling the cell-cell interactions.
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Affiliation(s)
- Fan Xiao
- Department of Materials Science and EngineeringSouthern University of Science and Technology1088 Xueyuan Blvd.Nanshan DistrictShenzhenGuangdong518055P. R. China
- School of Materials Science and EngineeringHarbin Institute of TechnologyNangang DistrictHarbin150001P. R. China
| | - Zhe Chen
- Department of Materials Science and EngineeringSouthern University of Science and Technology1088 Xueyuan Blvd.Nanshan DistrictShenzhenGuangdong518055P. R. China
- Cancer Centre and Centre of ReproductionDevelopment and AgingFaculty of Health SciencesUniversity of MacauTaipaMacau999078P. R. China
| | - Zixiang Wei
- Department of Materials Science and EngineeringSouthern University of Science and Technology1088 Xueyuan Blvd.Nanshan DistrictShenzhenGuangdong518055P. R. China
- Cancer Centre and Centre of ReproductionDevelopment and AgingFaculty of Health SciencesUniversity of MacauTaipaMacau999078P. R. China
| | - Leilei Tian
- Department of Materials Science and EngineeringSouthern University of Science and Technology1088 Xueyuan Blvd.Nanshan DistrictShenzhenGuangdong518055P. R. China
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7
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Controlled Peptide-Mediated Vesicle Fusion Assessed by Simultaneous Dual-Colour Time-Lapsed Fluorescence Microscopy. Sci Rep 2020; 10:3087. [PMID: 32080270 PMCID: PMC7033240 DOI: 10.1038/s41598-020-59926-z] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2019] [Accepted: 01/31/2020] [Indexed: 12/03/2022] Open
Abstract
We have employed a model system, inspired by SNARE proteins, to facilitate membrane fusion between Giant Unilamellar Vesicles (GUVs) and Large Unilamellar Vesicles (LUVs) under physiological conditions. In this system, two synthetic lipopeptide constructs comprising the coiled-coil heterodimer-forming peptides K4, (KIAALKE)4, or E4, (EIAALEK)4, a PEG spacer of variable length, and a cholesterol moiety to anchor the peptides into the liposome membrane replace the natural SNARE proteins. GUVs are functionalized with one of the lipopeptide constructs and the fusion process is triggered by adding LUVs bearing the complementary lipopeptide. Dual-colour time lapse fluorescence microscopy was used to visualize lipid- and content-mixing. Using conventional confocal microscopy, lipid mixing was observed on the lipid bilayer of individual GUVs. In addition to lipid-mixing, content-mixing assays showed a low efficiency due to clustering of K4-functionalized LUVs on the GUVs target membranes. We showed that, through the use of the non-ionic surfactant Tween 20, content-mixing between GUVs and LUVs could be improved, meaning this system has the potential to be employed for drug delivery in biological systems.
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8
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Peruzzi JA, Jacobs ML, Vu TQ, Wang KS, Kamat NP. Barcoding Biological Reactions with DNA-Functionalized Vesicles. Angew Chem Int Ed Engl 2019; 58:18683-18690. [PMID: 31596992 PMCID: PMC6901749 DOI: 10.1002/anie.201911544] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2019] [Indexed: 11/08/2022]
Abstract
Targeted vesicle fusion is a promising approach to selectively control interactions between vesicle compartments and would enable the initiation of biological reactions in complex aqueous environments. Here, we explore how two features of vesicle membranes, DNA tethers and phase-segregated membranes, promote fusion between specific vesicle populations. Membrane phase-segregation provides an energetic driver for membrane fusion that increases the efficiency of DNA-mediated fusion events. The orthogonality provided by DNA tethers allows us to direct fusion and delivery of DNA cargo to specific vesicle populations. Vesicle fusion between DNA-tethered vesicles can be used to initiate in vitro protein expression to produce model soluble and membrane proteins. Engineering orthogonal fusion events between DNA-tethered vesicles provides a new strategy to control the spatiotemporal dynamics of cell-free reactions, expanding opportunities to engineer artificial cellular systems.
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Affiliation(s)
- Justin A Peruzzi
- Department of Chemical and Biological Engineering, Northwestern University, USA
| | - Miranda L Jacobs
- Department of Biomedical Engineering, Northwestern University, McCormick School of Engineering, Technological Institute, 2145 Sheridan Road, Evanston, Il, 60208, USA
| | - Timothy Q Vu
- Department of Biomedical Engineering, Northwestern University, McCormick School of Engineering, Technological Institute, 2145 Sheridan Road, Evanston, Il, 60208, USA
| | - Kenneth S Wang
- Department of Biomedical Engineering, Northwestern University, McCormick School of Engineering, Technological Institute, 2145 Sheridan Road, Evanston, Il, 60208, USA
| | - Neha P Kamat
- Department of Biomedical Engineering, Northwestern University, McCormick School of Engineering, Technological Institute, 2145 Sheridan Road, Evanston, Il, 60208, USA
- Center for Synthetic Biology, Northwestern University, USA
- Chemistry of Life Processes Institute, Northwestern University, USA
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9
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Darley E, Singh JKD, Surace NA, Wickham SFJ, Baker MAB. The Fusion of Lipid and DNA Nanotechnology. Genes (Basel) 2019; 10:E1001. [PMID: 31816934 PMCID: PMC6947036 DOI: 10.3390/genes10121001] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2019] [Revised: 11/18/2019] [Accepted: 11/26/2019] [Indexed: 01/06/2023] Open
Abstract
Lipid membranes form the boundary of many biological compartments, including organelles and cells. Consisting of two leaflets of amphipathic molecules, the bilayer membrane forms an impermeable barrier to ions and small molecules. Controlled transport of molecules across lipid membranes is a fundamental biological process that is facilitated by a diverse range of membrane proteins, including ion-channels and pores. However, biological membranes and their associated proteins are challenging to experimentally characterize. These challenges have motivated recent advances in nanotechnology towards building and manipulating synthetic lipid systems. Liposomes-aqueous droplets enclosed by a bilayer membrane-can be synthesised in vitro and used as a synthetic model for the cell membrane. In DNA nanotechnology, DNA is used as programmable building material for self-assembling biocompatible nanostructures. DNA nanostructures can be functionalised with hydrophobic chemical modifications, which bind to or bridge lipid membranes. Here, we review approaches that combine techniques from lipid and DNA nanotechnology to engineer the topography, permeability, and surface interactions of membranes, and to direct the fusion and formation of liposomes. These approaches have been used to study the properties of membrane proteins, to build biosensors, and as a pathway towards assembling synthetic multicellular systems.
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Affiliation(s)
- Es Darley
- School of Biotechnology and Biomolecular Science, UNSW Sydney, Kensington 2052, Australia;
| | - Jasleen Kaur Daljit Singh
- School of Chemistry, University of Sydney, Camperdown 2006, Australia; (J.K.D.S.); (N.A.S.)
- School of Chemical and Biomolecular Engineering, University of Sydney, Camperdown 2006, Australia
- Sydney Nanoscience Institute, University of Sydney, Camperdown 2006, Australia
| | - Natalie A. Surace
- School of Chemistry, University of Sydney, Camperdown 2006, Australia; (J.K.D.S.); (N.A.S.)
| | - Shelley F. J. Wickham
- School of Chemistry, University of Sydney, Camperdown 2006, Australia; (J.K.D.S.); (N.A.S.)
- Sydney Nanoscience Institute, University of Sydney, Camperdown 2006, Australia
- School of Physics, University of Sydney, Camperdown 2006, Australia
| | - Matthew A. B. Baker
- School of Biotechnology and Biomolecular Science, UNSW Sydney, Kensington 2052, Australia;
- CSIRO Synthetic Biology Future Science Platform, GPO Box 2583, Brisbane, QLD 4001, Australia
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10
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SU YY, LI CY, LI D. Progress in Membrane Fusion and Its Application in Drug Delivery. CHINESE JOURNAL OF ANALYTICAL CHEMISTRY 2019. [DOI: 10.1016/s1872-2040(19)61202-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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11
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Mognetti BM, Cicuta P, Di Michele L. Programmable interactions with biomimetic DNA linkers at fluid membranes and interfaces. REPORTS ON PROGRESS IN PHYSICS. PHYSICAL SOCIETY (GREAT BRITAIN) 2019; 82:116601. [PMID: 31370052 DOI: 10.1088/1361-6633/ab37ca] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
At the heart of the structured architecture and complex dynamics of biological systems are specific and timely interactions operated by biomolecules. In many instances, biomolecular agents are spatially confined to flexible lipid membranes where, among other functions, they control cell adhesion, motility and tissue formation. Besides being central to several biological processes, multivalent interactions mediated by reactive linkers confined to deformable substrates underpin the design of synthetic-biological platforms and advanced biomimetic materials. Here we review recent advances on the experimental study and theoretical modelling of a heterogeneous class of biomimetic systems in which synthetic linkers mediate multivalent interactions between fluid and deformable colloidal units, including lipid vesicles and emulsion droplets. Linkers are often prepared from synthetic DNA nanostructures, enabling full programmability of the thermodynamic and kinetic properties of their mutual interactions. The coupling of the statistical effects of multivalent interactions with substrate fluidity and deformability gives rise to a rich emerging phenomenology that, in the context of self-assembled soft materials, has been shown to produce exotic phase behaviour, stimuli-responsiveness, and kinetic programmability of the self-assembly process. Applications to (synthetic) biology will also be reviewed.
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Affiliation(s)
- Bortolo Matteo Mognetti
- Université libre de Bruxelles (ULB), Interdisciplinary Center for Nonlinear Phenomena and Complex Systems, Campus Plaine, CP 231, Blvd. du Triomphe, B-1050 Brussels, Belgium
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12
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Peruzzi JA, Jacobs ML, Vu TQ, Wang KS, Kamat NP. Barcoding Biological Reactions with DNA‐Functionalized Vesicles. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201911544] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Justin A. Peruzzi
- Department of Chemical and Biological Engineering Northwestern University USA
| | - Miranda L. Jacobs
- Department of Biomedical Engineering Northwestern University McCormick School of Engineering Technological Institute 2145 Sheridan Road Evanston Il 60208 USA
| | - Timothy Q. Vu
- Department of Biomedical Engineering Northwestern University McCormick School of Engineering Technological Institute 2145 Sheridan Road Evanston Il 60208 USA
| | - Kenneth S. Wang
- Department of Biomedical Engineering Northwestern University McCormick School of Engineering Technological Institute 2145 Sheridan Road Evanston Il 60208 USA
| | - Neha P. Kamat
- Department of Biomedical Engineering Northwestern University McCormick School of Engineering Technological Institute 2145 Sheridan Road Evanston Il 60208 USA
- Center for Synthetic Biology Northwestern University USA
- Chemistry of Life Processes Institute Northwestern University USA
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13
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Yan N, Liu Y, Liu L, Du Y, Liu X, Zhang H, Zhang Z. Bioactivities and Medicinal Value of Solanesol and Its Accumulation, Extraction Technology, and Determination Methods. Biomolecules 2019; 9:biom9080334. [PMID: 31382471 PMCID: PMC6722674 DOI: 10.3390/biom9080334] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2019] [Revised: 07/20/2019] [Accepted: 08/01/2019] [Indexed: 11/20/2022] Open
Abstract
Solanesol, an aliphatic terpene alcohol composed of nine isoprene units, is mainly found in solanaceous plants. Particularly, tobacco (Nicotiana tabacum), belonging to the Solanaceae family, is the richest plant source of solanesol, and its leaves have been regarded as the ideal material for solanesol extraction. Since the discovery of solanesol in tobacco, significant progress has been achieved in research on solanesol’s bioactivities, medicinal value, accumulation, extraction technology, and determination methods. Solanesol possesses strong free radical absorption ability and antioxidant activity owing to the presence of several non-conjugated double bonds. Notably, solanesol’s anti-inflammatory, neuroprotective, and antimicrobial activities have been previously demonstrated. Solanesol is a key intermediate in the synthesis of coenzyme Q10, vitamin K2, and the anticancer agent synergiser N-solanesyl-N,N′-bis(3,4-dimethoxybenzyl) ethylenediamine. Other applications of solanesol include solanesol derivative micelles for hydrophobic drug delivery, solanesol-derived scaffolds for bioactive peptide multimerization, and solanesol-anchored DNA for mediating vesicle fusion. Solanesol accumulation in plants is influenced by genetic and environmental factors, including biotic stresses caused by pathogen infections, temperature, illumination, and agronomic measures. Seven extraction technologies and seven determination methods of solanesol are also systematically summarized in the present review. This review can serve as a reference for solanesol’s comprehensive application.
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Affiliation(s)
- Ning Yan
- Tobacco Research Institute of Chinese Academy of Agricultural Sciences, Qingdao 266101, China.
| | - Yanhua Liu
- Tobacco Research Institute of Chinese Academy of Agricultural Sciences, Qingdao 266101, China
| | - Linqing Liu
- Tobacco Research Institute of Chinese Academy of Agricultural Sciences, Qingdao 266101, China
| | - Yongmei Du
- Tobacco Research Institute of Chinese Academy of Agricultural Sciences, Qingdao 266101, China
| | - Xinmin Liu
- Tobacco Research Institute of Chinese Academy of Agricultural Sciences, Qingdao 266101, China
| | - Hongbo Zhang
- Tobacco Research Institute of Chinese Academy of Agricultural Sciences, Qingdao 266101, China
| | - Zhongfeng Zhang
- Tobacco Research Institute of Chinese Academy of Agricultural Sciences, Qingdao 266101, China
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14
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Interaction of SNARE Mimetic Peptides with Lipid bilayers: Effects of Secondary Structure, Bilayer Composition and Lipid Anchoring. Sci Rep 2019; 9:7708. [PMID: 31118479 PMCID: PMC6531448 DOI: 10.1038/s41598-019-43418-w] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2018] [Accepted: 04/18/2019] [Indexed: 12/24/2022] Open
Abstract
The coiled-coil forming peptides 'K' enriched in lysine and 'E' enriched in glutamic acid have been used as a minimal SNARE mimetic system for membrane fusion. Here we describe atomistic molecular dynamics simulations to characterize the interactions of these peptides with lipid bilayers for two different compositions. For neutral phosphatidylcholine (PC)/phosphatidylethanolamine (PE) bilayers the peptides experience a strong repulsive barrier against adsorption, also observed in potential of mean force (PMF) profiles calculated with umbrella sampling. For peptide K, a minimum of -12 kBT in the PMF provides an upper bound for the binding free energy whereas no stable membrane bound state could be observed for peptide E. In contrast, the electrostatic interactions with negatively charged phosphatidylglycerol (PG) lipids lead to fast adsorption of both peptides at the head-water interface. Experimental data using fluorescently labeled peptides confirm the stronger binding to PG containing bilayers. Lipid anchors have little effect on the peptide-bilayer interactions or peptide structure, when the peptide also binds to the bilayer in the absence of a lipid anchor. For peptide E, which does not bind to the PC bilayer without a lipid anchor, the presence of such an anchor strengthens the electrostatic interactions between the charged side chains and the zwitterionic head-groups and leads to a stabilization of the peptide's helical fold by the membrane.
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15
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Lu T, Guo H. How the Membranes Fuse: From Spontaneous to Induced. ADVANCED THEORY AND SIMULATIONS 2019. [DOI: 10.1002/adts.201900032] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Teng Lu
- Beijing National Laboratory for Molecular SciencesJoint Laboratory of Polymer Sciences and MaterialsState Key Laboratory of Polymer Physics and ChemistryInstitute of Chemistry, Chinese Academy of Sciences Beijing 100190 China
| | - Hongxia Guo
- Beijing National Laboratory for Molecular SciencesJoint Laboratory of Polymer Sciences and MaterialsState Key Laboratory of Polymer Physics and ChemistryInstitute of Chemistry, Chinese Academy of Sciences Beijing 100190 China
- Division of Polymer Science and MaterialsSchool of Chemical SciencesUniversity of Chinese Academy of Sciences Beijing 100049 China
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16
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Feng G, Luo X, Lu X, Xie S, Deng L, Kang W, He F, Zhang J, Lei C, Lin B, Huang Y, Nie Z, Yao S. Engineering of Nucleic Acids and Synthetic Cofactors as Holo Sensors for Probing Signaling Molecules in the Cellular Membrane Microenvironment. Angew Chem Int Ed Engl 2019; 58:6590-6594. [DOI: 10.1002/anie.201901320] [Citation(s) in RCA: 52] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2019] [Indexed: 01/16/2023]
Affiliation(s)
- Guangfu Feng
- State Key Laboratory of Chemo/Biosensing and ChemometricsCollege of Chemistry and Chemical EngineeringHunan Provincial Key Laboratory of Biomacromolecular Chemical BiologyHunan University Changsha 410082 P. R. China
| | - Xingyu Luo
- State Key Laboratory of Chemo/Biosensing and ChemometricsCollege of Chemistry and Chemical EngineeringHunan Provincial Key Laboratory of Biomacromolecular Chemical BiologyHunan University Changsha 410082 P. R. China
| | - Xu Lu
- State Key Laboratory of Chemo/Biosensing and ChemometricsCollege of Chemistry and Chemical EngineeringHunan Provincial Key Laboratory of Biomacromolecular Chemical BiologyHunan University Changsha 410082 P. R. China
| | - Shiyi Xie
- State Key Laboratory of Chemo/Biosensing and ChemometricsCollege of Chemistry and Chemical EngineeringHunan Provincial Key Laboratory of Biomacromolecular Chemical BiologyHunan University Changsha 410082 P. R. China
| | - Lu Deng
- State Key Laboratory of Chemo/Biosensing and ChemometricsCollege of Chemistry and Chemical EngineeringHunan Provincial Key Laboratory of Biomacromolecular Chemical BiologyHunan University Changsha 410082 P. R. China
| | - Wenyuan Kang
- State Key Laboratory of Chemo/Biosensing and ChemometricsCollege of Chemistry and Chemical EngineeringHunan Provincial Key Laboratory of Biomacromolecular Chemical BiologyHunan University Changsha 410082 P. R. China
| | - Fang He
- State Key Laboratory of Chemo/Biosensing and ChemometricsCollege of Chemistry and Chemical EngineeringHunan Provincial Key Laboratory of Biomacromolecular Chemical BiologyHunan University Changsha 410082 P. R. China
| | - Jiaheng Zhang
- State Key Laboratory of Chemo/Biosensing and ChemometricsCollege of Chemistry and Chemical EngineeringHunan Provincial Key Laboratory of Biomacromolecular Chemical BiologyHunan University Changsha 410082 P. R. China
| | - Chunyang Lei
- State Key Laboratory of Chemo/Biosensing and ChemometricsCollege of Chemistry and Chemical EngineeringHunan Provincial Key Laboratory of Biomacromolecular Chemical BiologyHunan University Changsha 410082 P. R. China
| | - Bin Lin
- Pharmaceutical Engineering & Key Laboratory of Structure-Based Drug Design & DiscoveryMinistry of EducationShenyang Pharmaceutical University Shenyang 110016 P. R. China
| | - Yan Huang
- State Key Laboratory of Chemo/Biosensing and ChemometricsCollege of Chemistry and Chemical EngineeringHunan Provincial Key Laboratory of Biomacromolecular Chemical BiologyHunan University Changsha 410082 P. R. China
| | - Zhou Nie
- State Key Laboratory of Chemo/Biosensing and ChemometricsCollege of Chemistry and Chemical EngineeringHunan Provincial Key Laboratory of Biomacromolecular Chemical BiologyHunan University Changsha 410082 P. R. China
| | - Shouzhuo Yao
- State Key Laboratory of Chemo/Biosensing and ChemometricsCollege of Chemistry and Chemical EngineeringHunan Provincial Key Laboratory of Biomacromolecular Chemical BiologyHunan University Changsha 410082 P. R. China
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17
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Feng G, Luo X, Lu X, Xie S, Deng L, Kang W, He F, Zhang J, Lei C, Lin B, Huang Y, Nie Z, Yao S. Engineering of Nucleic Acids and Synthetic Cofactors as Holo Sensors for Probing Signaling Molecules in the Cellular Membrane Microenvironment. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201901320] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Guangfu Feng
- State Key Laboratory of Chemo/Biosensing and ChemometricsCollege of Chemistry and Chemical EngineeringHunan Provincial Key Laboratory of Biomacromolecular Chemical BiologyHunan University Changsha 410082 P. R. China
| | - Xingyu Luo
- State Key Laboratory of Chemo/Biosensing and ChemometricsCollege of Chemistry and Chemical EngineeringHunan Provincial Key Laboratory of Biomacromolecular Chemical BiologyHunan University Changsha 410082 P. R. China
| | - Xu Lu
- State Key Laboratory of Chemo/Biosensing and ChemometricsCollege of Chemistry and Chemical EngineeringHunan Provincial Key Laboratory of Biomacromolecular Chemical BiologyHunan University Changsha 410082 P. R. China
| | - Shiyi Xie
- State Key Laboratory of Chemo/Biosensing and ChemometricsCollege of Chemistry and Chemical EngineeringHunan Provincial Key Laboratory of Biomacromolecular Chemical BiologyHunan University Changsha 410082 P. R. China
| | - Lu Deng
- State Key Laboratory of Chemo/Biosensing and ChemometricsCollege of Chemistry and Chemical EngineeringHunan Provincial Key Laboratory of Biomacromolecular Chemical BiologyHunan University Changsha 410082 P. R. China
| | - Wenyuan Kang
- State Key Laboratory of Chemo/Biosensing and ChemometricsCollege of Chemistry and Chemical EngineeringHunan Provincial Key Laboratory of Biomacromolecular Chemical BiologyHunan University Changsha 410082 P. R. China
| | - Fang He
- State Key Laboratory of Chemo/Biosensing and ChemometricsCollege of Chemistry and Chemical EngineeringHunan Provincial Key Laboratory of Biomacromolecular Chemical BiologyHunan University Changsha 410082 P. R. China
| | - Jiaheng Zhang
- State Key Laboratory of Chemo/Biosensing and ChemometricsCollege of Chemistry and Chemical EngineeringHunan Provincial Key Laboratory of Biomacromolecular Chemical BiologyHunan University Changsha 410082 P. R. China
| | - Chunyang Lei
- State Key Laboratory of Chemo/Biosensing and ChemometricsCollege of Chemistry and Chemical EngineeringHunan Provincial Key Laboratory of Biomacromolecular Chemical BiologyHunan University Changsha 410082 P. R. China
| | - Bin Lin
- Pharmaceutical Engineering & Key Laboratory of Structure-Based Drug Design & DiscoveryMinistry of EducationShenyang Pharmaceutical University Shenyang 110016 P. R. China
| | - Yan Huang
- State Key Laboratory of Chemo/Biosensing and ChemometricsCollege of Chemistry and Chemical EngineeringHunan Provincial Key Laboratory of Biomacromolecular Chemical BiologyHunan University Changsha 410082 P. R. China
| | - Zhou Nie
- State Key Laboratory of Chemo/Biosensing and ChemometricsCollege of Chemistry and Chemical EngineeringHunan Provincial Key Laboratory of Biomacromolecular Chemical BiologyHunan University Changsha 410082 P. R. China
| | - Shouzhuo Yao
- State Key Laboratory of Chemo/Biosensing and ChemometricsCollege of Chemistry and Chemical EngineeringHunan Provincial Key Laboratory of Biomacromolecular Chemical BiologyHunan University Changsha 410082 P. R. China
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18
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Whitehouse WL, Noble JE, Ryadnov MG, Howorka S. Cholesterol Anchors Enable Efficient Binding and Intracellular Uptake of DNA Nanostructures. Bioconjug Chem 2019; 30:1836-1844. [PMID: 30821443 DOI: 10.1021/acs.bioconjchem.9b00036] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
DNA nanostructures constitute a rapidly advancing tool-set for exploring cell-membrane functions and intracellular sensing or advancing delivery of biomolecular cargo into cells. Chemical conjugation with lipid anchors can mediate binding of DNA nanostructures to synthetic lipid bilayers, yet how such structures interact with biological membranes and internalize cells has not been shown. Here, an archetypal 6-duplex nanobundle is used to investigate how lipid conjugation influences DNA cell binding and internalization kinetics. Cellular interactions of DNA nanobundles modified with one and three cholesterol anchors were assessed using flow cytometry and confocal microscopy. Nuclease digestion was used to distinguish surface-bound DNA, which is nuclease accessible, from internalized DNA. Three cholesterol anchors were found to enhance cellular association by up to 10-fold when compared with unmodified DNA. The bundles were endocytosed efficiently within 24 h. The results can help design controlled DNA binding and trafficking into cells.
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Affiliation(s)
- William L Whitehouse
- Department of Chemistry, Institute of Structural and Molecular Biology , University College London , London WC1H 0AJ , United Kingdom
| | - James E Noble
- National Physical Laboratory , Hampton Road , Teddington TW11 0LW , United Kingdom
| | - Maxim G Ryadnov
- National Physical Laboratory , Hampton Road , Teddington TW11 0LW , United Kingdom
| | - Stefan Howorka
- National Physical Laboratory , Hampton Road , Teddington TW11 0LW , United Kingdom
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19
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Fusion assays for model membranes: a critical review. ADVANCES IN BIOMEMBRANES AND LIPID SELF-ASSEMBLY 2019. [DOI: 10.1016/bs.abl.2019.09.003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/09/2022]
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20
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Arnott PM, Joshi H, Aksimentiev A, Howorka S. Dynamic Interactions between Lipid-Tethered DNA and Phospholipid Membranes. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2018; 34:15084-15092. [PMID: 30350681 PMCID: PMC6458106 DOI: 10.1021/acs.langmuir.8b02271] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
Lipid-anchored DNA can attach functional cargo to bilayer membranes in DNA nanotechnology, synthetic biology, and cell biology research. To optimize DNA anchoring, an understanding of DNA-membrane interactions in terms of binding strength, extent, and structural dynamics is required. Here we use experiments and molecular dynamics (MD) simulations to determine how the membrane binding of cholesterol-modified DNA depends on electrostatic and steric factors involving the lipid headgroup charge, duplexed or single-stranded DNA, and the buffer composition. The experiments distinguish between free and membrane vesicle-bound DNA and thereby reveal the surface density of anchored DNA and its binding affinity, something which had previously not been known. The Kd values range from 8.5 ± 4.9 to 466 ± 134 μM whereby negatively charged headgroups led to weak binding due to the electrostatic repulsion with respect to the negatively charged DNA. Atomistic MD simulations explain the findings and elucidate the dynamic nature of anchored DNA such as the mushroom-like conformation of single-stranded DNA hovering over the bilayer surface in contrast to a straight-up conformation of double-stranded DNA. The biophysical insight into the binding strength to membranes as well as the molecular accessibility of DNA for hybridization to molecular cargo is expected to facilitate the creation of biomimetic DNA versions of natural membrane nanopores and cytoskeletons for research and nanobiotechnology.
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Affiliation(s)
- Patrick M Arnott
- Department of Chemistry, Institute of Structural and Molecular Biology , University College London , London WC1H 0AJ , United Kingdom
| | - Himanshu Joshi
- Department of Physics, and Beckman Institute for Advanced Science and Technology , University of Illinois at Urbana-Champaign , Urbana , Illinois 61801 , United States
| | - Aleksei Aksimentiev
- Department of Physics, and Beckman Institute for Advanced Science and Technology , University of Illinois at Urbana-Champaign , Urbana , Illinois 61801 , United States
| | - Stefan Howorka
- Department of Chemistry, Institute of Structural and Molecular Biology , University College London , London WC1H 0AJ , United Kingdom
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21
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Pick H, Alves AC, Vogel H. Single-Vesicle Assays Using Liposomes and Cell-Derived Vesicles: From Modeling Complex Membrane Processes to Synthetic Biology and Biomedical Applications. Chem Rev 2018; 118:8598-8654. [PMID: 30153012 DOI: 10.1021/acs.chemrev.7b00777] [Citation(s) in RCA: 96] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
The plasma membrane is of central importance for defining the closed volume of cells in contradistinction to the extracellular environment. The plasma membrane not only serves as a boundary, but it also mediates the exchange of physical and chemical information between the cell and its environment in order to maintain intra- and intercellular functions. Artificial lipid- and cell-derived membrane vesicles have been used as closed-volume containers, representing the simplest cell model systems to study transmembrane processes and intracellular biochemistry. Classical examples are studies of membrane translocation processes in plasma membrane vesicles and proteoliposomes mediated by transport proteins and ion channels. Liposomes and native membrane vesicles are widely used as model membranes for investigating the binding and bilayer insertion of proteins, the structure and function of membrane proteins, the intramembrane composition and distribution of lipids and proteins, and the intermembrane interactions during exo- and endocytosis. In addition, natural cell-released microvesicles have gained importance for early detection of diseases and for their use as nanoreactors and minimal protocells. Yet, in most studies, ensembles of vesicles have been employed. More recently, new micro- and nanotechnological tools as well as novel developments in both optical and electron microscopy have allowed the isolation and investigation of individual (sub)micrometer-sized vesicles. Such single-vesicle experiments have revealed large heterogeneities in the structure and function of membrane components of single vesicles, which were hidden in ensemble studies. These results have opened enormous possibilities for bioanalysis and biotechnological applications involving unprecedented miniaturization at the nanometer and attoliter range. This review will cover important developments toward single-vesicle analysis and the central discoveries made in this exciting field of research.
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Affiliation(s)
- Horst Pick
- Institute of Chemical Sciences and Engineering , Ecole Polytechnique Fédérale de Lausanne (EPFL) , CH-1015 Lausanne , Switzerland
| | - Ana Catarina Alves
- Institute of Chemical Sciences and Engineering , Ecole Polytechnique Fédérale de Lausanne (EPFL) , CH-1015 Lausanne , Switzerland
| | - Horst Vogel
- Institute of Chemical Sciences and Engineering , Ecole Polytechnique Fédérale de Lausanne (EPFL) , CH-1015 Lausanne , Switzerland
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22
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Peptide-Mediated Liposome Fusion: The Effect of Anchor Positioning. Int J Mol Sci 2018; 19:ijms19010211. [PMID: 29320427 PMCID: PMC5796160 DOI: 10.3390/ijms19010211] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2017] [Revised: 01/02/2018] [Accepted: 01/08/2018] [Indexed: 11/17/2022] Open
Abstract
A minimal model system for membrane fusion, comprising two complementary peptides dubbed "E" and "K" joined to a cholesterol anchor via a polyethyleneglycol spacer, has previously been developed in our group. This system promotes the fusion of large unilamellar vesicles and facilitates liposome-cell fusion both in vitro and in vivo. Whilst several aspects of the system have previously been investigated to provide an insight as to how fusion is facilitated, anchor positioning has not yet been considered. In this study, the effects of placing the anchor at either the N-terminus or in the center of the peptide are investigated using a combination of circular dichroism spectroscopy, dynamic light scattering, and fluorescence assays. It was discovered that anchoring the "K" peptide in the center of the sequence had no effect on its structure, its ability to interact with membranes, or its ability to promote fusion, whereas anchoring the 'E' peptide in the middle of the sequence dramatically decreases fusion efficiency. We postulate that anchoring the 'E' peptide in the middle of the sequence disrupts its ability to form homodimers with peptides on the same membrane, leading to aggregation and content leakage.
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