1
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Salter LC, Wojciechowski JP, McLean B, Charchar P, Barnes PRF, Creamer A, Doutch J, Barriga HMG, Holme MN, Yarovsky I, Stevens MM. 3,4-Ethylenedioxythiophene Hydrogels: Relating Structure and Charge Transport in Supramolecular Gels. Chem Mater 2024; 36:3092-3106. [PMID: 38617802 PMCID: PMC11007859 DOI: 10.1021/acs.chemmater.3c01360] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/12/2023] [Revised: 03/05/2024] [Accepted: 03/05/2024] [Indexed: 04/16/2024]
Abstract
Ionic charge transport is a ubiquitous language of communication in biological systems. As such, bioengineering is in constant need of innovative, soft, and biocompatible materials that facilitate ionic conduction. Low molecular weight gelators (LMWGs) are complex self-assembled materials that have received increasing attention in recent years. Beyond their biocompatible, self-healing, and stimuli responsive facets, LMWGs can be viewed as a "solid" electrolyte solution. In this work, we investigate 3,4-ethylenedioxythiophene (EDOT) as a capping group for a small peptide library, which we use as a system to understand the relationship between modes of assembly and charge transport in supramolecular gels. Through a combination of techniques including small-angle neutron scattering (SANS), NMR-based Van't Hoff analysis, atomic force microscopy (AFM), rheology, four-point probe, and electrochemical impedance spectroscopy (EIS), we found that modifications to the peptide sequence result in distinct assembly pathways, thermodynamic parameters, mechanical properties, and ionic conductivities. Four-point probe conductivity measurements and electrochemical impedance spectroscopy suggest that ionic conductivity is approximately doubled by programmable gel assemblies with hollow cylinder morphologies relative to gels containing solid fibers or a control electrolyte. More broadly, it is hoped this work will serve as a platform for those working on charge transport of aqueous soft materials in general.
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Affiliation(s)
- Luke C.
B. Salter
- Department
of Materials and Department of Bioengineering, Institute of Biomedical
Engineering, Imperial College London, London SW7 2AZ, United Kingdom
| | - Jonathan P. Wojciechowski
- Department
of Materials and Department of Bioengineering, Institute of Biomedical
Engineering, Imperial College London, London SW7 2AZ, United Kingdom
| | - Ben McLean
- School
of Engineering, RMIT University, Melbourne, Victoria 3001, Australia
- ARC
Research Hub for Australian Steel Innovation, https://www.rmit.edu.au/research/centres-collaborations/multi-partner-collaborations/arc-research-hub-aus-steel-manufacturing
| | - Patrick Charchar
- School
of Engineering, RMIT University, Melbourne, Victoria 3001, Australia
| | - Piers R. F. Barnes
- Department
of Physics, Imperial College London, London SW7 2AZ, United
Kingdom
| | - Adam Creamer
- Department
of Materials and Department of Bioengineering, Institute of Biomedical
Engineering, Imperial College London, London SW7 2AZ, United Kingdom
| | - James Doutch
- ISIS
Muon and Neutron Source, Rutherford Appleton
Laboratory, Harwell Campus, Oxfordshire OX11 0QX, United Kingdom
| | - Hanna M. G. Barriga
- Department
of Medical Biochemistry and Biophysics, Karolinska Institute, 171 77 Stockholm, Sweden
| | - Margaret N. Holme
- Department
of Medical Biochemistry and Biophysics, Karolinska Institute, 171 77 Stockholm, Sweden
| | - Irene Yarovsky
- School
of Engineering, RMIT University, Melbourne, Victoria 3001, Australia
| | - Molly M. Stevens
- Department
of Materials and Department of Bioengineering, Institute of Biomedical
Engineering, Imperial College London, London SW7 2AZ, United Kingdom
- Department
of Medical Biochemistry and Biophysics, Karolinska Institute, 171 77 Stockholm, Sweden
- Department
of Physiology, Anatomy and Genetics, Department of Engineering Science,
and Kavli Institute for Nanoscience Discovery, University of Oxford, OX1
3QU, Oxford, United Kingdom
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2
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Jumeaux C, Spicer CD, Charchar P, Howes PD, Holme MN, Ma L, Rose NC, Nabarro J, Fascione MA, Rashid MH, Yarovsky I, Stevens MM. Strain-Promoted Cycloadditions in Lipid Bilayers Triggered by Liposome Fusion. Angew Chem Int Ed Engl 2024; 63:e202314786. [PMID: 38438780 DOI: 10.1002/anie.202314786] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2023] [Indexed: 03/06/2024]
Abstract
Due to the variety of roles served by the cell membrane, its composition and structure are complex, making it difficult to study. Bioorthogonal reactions, such as the strain promoted azide-alkyne cycloaddition (SPAAC), are powerful tools for exploring the function of biomolecules in their native environment but have been largely unexplored within the context of lipid bilayers. Here, we developed a new approach to study the SPAAC reaction in liposomal membranes using azide- and strained alkyne-functionalized Förster resonance energy transfer (FRET) dye pairs. This study represents the first characterization of the SPAAC reaction between diffusing molecules inside liposomal membranes. Potential applications of this work include in situ bioorthogonal labeling of membrane proteins, improved understanding of membrane dynamics and fluidity, and the generation of new probes for biosensing assays.
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Affiliation(s)
- Coline Jumeaux
- Department of Materials, Department of Bioengineering, and Institute of Biomedical Engineering, Imperial College London, London, SW7 2AZ, United Kingdom
| | - Christopher D Spicer
- Department of Materials, Department of Bioengineering, and Institute of Biomedical Engineering, Imperial College London, London, SW7 2AZ, United Kingdom
- Department of Medical Biochemistry and Biophysics, Karolinska Institute, Stockholm, 17177, Sweden
- Department of Chemistry and York Biomedical Research Institute, University of York, Heslington, YO10 5DD, United Kingdom
| | - Patrick Charchar
- School of Engineering, RMIT University, Melbourne, Victoria, 3001, Australia
| | - Philip D Howes
- Department of Materials, Department of Bioengineering, and Institute of Biomedical Engineering, Imperial College London, London, SW7 2AZ, United Kingdom
- Present Addresses: Department of Engineering and Design, School of Engineering and Informatics, University of Sussex, BN1 9RH, Brighton, United Kingdom
| | - Margaret N Holme
- Department of Medical Biochemistry and Biophysics, Karolinska Institute, Stockholm, 17177, Sweden
| | - Li Ma
- Department of Materials, Department of Bioengineering, and Institute of Biomedical Engineering, Imperial College London, London, SW7 2AZ, United Kingdom
- Department of Medical Biochemistry and Biophysics, Karolinska Institute, Stockholm, 17177, Sweden
| | - Nicholas C Rose
- Department of Chemistry and York Biomedical Research Institute, University of York, Heslington, YO10 5DD, United Kingdom
| | - Joe Nabarro
- Department of Chemistry and York Biomedical Research Institute, University of York, Heslington, YO10 5DD, United Kingdom
| | - Martin A Fascione
- Department of Chemistry and York Biomedical Research Institute, University of York, Heslington, YO10 5DD, United Kingdom
| | - M Harunur Rashid
- School of Engineering, RMIT University, Melbourne, Victoria, 3001, Australia
- Present Addresses: Department of Mathematics and Physics, North South University, Bashundhara, Dhaka, 1229, Bangladesh
| | - Irene Yarovsky
- School of Engineering, RMIT University, Melbourne, Victoria, 3001, Australia
| | - Molly M Stevens
- Department of Materials, Department of Bioengineering, and Institute of Biomedical Engineering, Imperial College London, London, SW7 2AZ, United Kingdom
- Department of Medical Biochemistry and Biophysics, Karolinska Institute, Stockholm, 17177, Sweden
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3
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Saunders C, Foote JEJ, Wojciechowski JP, Cammack A, Pedersen SV, Doutch JJ, Barriga HMG, Holme MN, Penders J, Chami M, Najer A, Stevens MM. Revealing Population Heterogeneity in Vesicle-Based Nanomedicines Using Automated, Single Particle Raman Analysis. ACS Nano 2023; 17:11713-11728. [PMID: 37279338 PMCID: PMC10311594 DOI: 10.1021/acsnano.3c02452] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/16/2023] [Accepted: 05/30/2023] [Indexed: 06/08/2023]
Abstract
The intrinsic heterogeneity of many nanoformulations is currently challenging to characterize on both the single particle and population level. Therefore, there is great opportunity to develop advanced techniques to describe and understand nanomedicine heterogeneity, which will aid translation to the clinic by informing manufacturing quality control, characterization for regulatory bodies, and connecting nanoformulation properties to clinical outcomes to enable rational design. Here, we present an analytical technique to provide such information, while measuring the nanocarrier and cargo simultaneously with label-free, nondestructive single particle automated Raman trapping analysis (SPARTA). We first synthesized a library of model compounds covering a range of hydrophilicities and providing distinct Raman signals. These compounds were then loaded into model nanovesicles (polymersomes) that can load both hydrophobic and hydrophilic cargo into the membrane or core regions, respectively. Using our analytical framework, we characterized the heterogeneity of the population by correlating the signal per particle from the membrane and cargo. We found that core and membrane loading can be distinguished, and we detected subpopulations of highly loaded particles in certain cases. We then confirmed the suitability of our technique in liposomes, another nanovesicle class, including the commercial formulation Doxil. Our label-free analytical technique precisely determines cargo location alongside loading and release heterogeneity in nanomedicines, which could be instrumental for future quality control, regulatory body protocols, and development of structure-function relationships to bring more nanomedicines to the clinic.
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Affiliation(s)
- Catherine Saunders
- Department
of Materials, Department of Bioengineering, and Institute of Biomedical
Engineering, Imperial College London, London SW7 2AZ, United Kingdom
| | - James E. J. Foote
- Department
of Materials, Department of Bioengineering, and Institute of Biomedical
Engineering, Imperial College London, London SW7 2AZ, United Kingdom
| | - Jonathan P. Wojciechowski
- Department
of Materials, Department of Bioengineering, and Institute of Biomedical
Engineering, Imperial College London, London SW7 2AZ, United Kingdom
| | - Ana Cammack
- Department
of Materials, Department of Bioengineering, and Institute of Biomedical
Engineering, Imperial College London, London SW7 2AZ, United Kingdom
| | - Simon V. Pedersen
- Department
of Materials, Department of Bioengineering, and Institute of Biomedical
Engineering, Imperial College London, London SW7 2AZ, United Kingdom
| | - James J. Doutch
- ISIS
Neutron and Muon Source, Rutherford Appleton Laboratory, Science and Technology Facilities Council, Didcot OX11 ODE, United Kingdom
| | - Hanna M. G. Barriga
- Department
of Medical Biochemistry and Biophysics, Karolinska Institutet, SE-171 77 Stockholm, Sweden
| | - Margaret N. Holme
- Department
of Medical Biochemistry and Biophysics, Karolinska Institutet, SE-171 77 Stockholm, Sweden
| | - Jelle Penders
- Department
of Materials, Department of Bioengineering, and Institute of Biomedical
Engineering, Imperial College London, London SW7 2AZ, United Kingdom
| | - Mohamed Chami
- BioEM
Lab, Biozentrum, University of Basel, Mattenstrasse 26, 4058 Basel, Switzerland
| | - Adrian Najer
- Department
of Materials, Department of Bioengineering, and Institute of Biomedical
Engineering, Imperial College London, London SW7 2AZ, United Kingdom
| | - Molly M. Stevens
- Department
of Materials, Department of Bioengineering, and Institute of Biomedical
Engineering, Imperial College London, London SW7 2AZ, United Kingdom
- Department
of Medical Biochemistry and Biophysics, Karolinska Institutet, SE-171 77 Stockholm, Sweden
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4
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Øvrebø Ø, Ojansivu M, Kartasalo K, Barriga HMG, Ranefall P, Holme MN, Stevens MM. RegiSTORM: channel registration for multi-color stochastic optical reconstruction microscopy. BMC Bioinformatics 2023; 24:237. [PMID: 37277712 DOI: 10.1186/s12859-023-05320-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2022] [Accepted: 05/04/2023] [Indexed: 06/07/2023] Open
Abstract
BACKGROUND Stochastic optical reconstruction microscopy (STORM), a super-resolution microscopy technique based on single-molecule localizations, has become popular to characterize sub-diffraction limit targets. However, due to lengthy image acquisition, STORM recordings are prone to sample drift. Existing cross-correlation or fiducial marker-based algorithms allow correcting the drift within each channel, but misalignment between channels remains due to interchannel drift accumulating during sequential channel acquisition. This is a major drawback in multi-color STORM, a technique of utmost importance for the characterization of various biological interactions. RESULTS We developed RegiSTORM, a software for reducing channel misalignment by accurately registering STORM channels utilizing fiducial markers in the sample. RegiSTORM identifies fiducials from the STORM localization data based on their non-blinking nature and uses them as landmarks for channel registration. We first demonstrated accurate registration on recordings of fiducials only, as evidenced by significantly reduced target registration error with all the tested channel combinations. Next, we validated the performance in a more practically relevant setup on cells multi-stained for tubulin. Finally, we showed that RegiSTORM successfully registers two-color STORM recordings of cargo-loaded lipid nanoparticles without fiducials, demonstrating the broader applicability of this software. CONCLUSIONS The developed RegiSTORM software was demonstrated to be able to accurately register multiple STORM channels and is freely available as open-source (MIT license) at https://github.com/oystein676/RegiSTORM.git and https://doi.org/10.5281/zenodo.5509861 (archived), and runs as a standalone executable (Windows) or via Python (Mac OS, Linux).
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Affiliation(s)
- Øystein Øvrebø
- Department of Materials, Imperial College London, London, SW7 2AZ, UK
- Department of Bioengineering, Imperial College London, London, SW7 2AZ, UK
- Institute of Biomedical Engineering, Imperial College London, London, SW7 2AZ, UK
| | - Miina Ojansivu
- Department of Medical Biochemistry and Biophysics, Karolinska Institute, 171 77, Stockholm, Sweden
| | - Kimmo Kartasalo
- Department of Medical Epidemiology and Biostatistics, Karolinska Institute, 171 77, Stockholm, Sweden
| | - Hanna M G Barriga
- Department of Medical Biochemistry and Biophysics, Karolinska Institute, 171 77, Stockholm, Sweden
| | - Petter Ranefall
- SciLifeLab BioImage Informatics Facility, and Department of Information Technology, Uppsala University, 751 05, Uppsala, Sweden
| | - Margaret N Holme
- Department of Medical Biochemistry and Biophysics, Karolinska Institute, 171 77, Stockholm, Sweden
| | - Molly M Stevens
- Department of Materials, Imperial College London, London, SW7 2AZ, UK.
- Department of Bioengineering, Imperial College London, London, SW7 2AZ, UK.
- Institute of Biomedical Engineering, Imperial College London, London, SW7 2AZ, UK.
- Department of Medical Biochemistry and Biophysics, Karolinska Institute, 171 77, Stockholm, Sweden.
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5
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Najer A, Blight J, Ducker CB, Gasbarri M, Brown JC, Che J, Høgset H, Saunders C, Ojansivu M, Lu Z, Lin Y, Yeow J, Rifaie-Graham O, Potter M, Tonkin R, Penders J, Doutch JJ, Georgiadou A, Barriga HMG, Holme MN, Cunnington AJ, Bugeon L, Dallman MJ, Barclay WS, Stellacci F, Baum J, Stevens MM. Potent Virustatic Polymer-Lipid Nanomimics Block Viral Entry and Inhibit Malaria Parasites In Vivo. ACS Cent Sci 2022; 8:1238-1257. [PMID: 36188342 PMCID: PMC9092191 DOI: 10.1021/acscentsci.1c01368] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/07/2023]
Abstract
Infectious diseases continue to pose a substantial burden on global populations, requiring innovative broad-spectrum prophylactic and treatment alternatives. Here, we have designed modular synthetic polymer nanoparticles that mimic functional components of host cell membranes, yielding multivalent nanomimics that act by directly binding to varied pathogens. Nanomimic blood circulation time was prolonged by reformulating polymer-lipid hybrids. Femtomolar concentrations of the polymer nanomimics were sufficient to inhibit herpes simplex virus type 2 (HSV-2) entry into epithelial cells, while higher doses were needed against severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). Given their observed virustatic mode of action, the nanomimics were also tested with malaria parasite blood-stage merozoites, which lose their invasive capacity after a few minutes. Efficient inhibition of merozoite invasion of red blood cells was demonstrated both in vitro and in vivo using a preclinical rodent malaria model. We envision these nanomimics forming an adaptable platform for developing pathogen entry inhibitors and as immunomodulators, wherein nanomimic-inhibited pathogens can be secondarily targeted to sites of immune recognition.
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Affiliation(s)
- Adrian Najer
- Department
of Materials, Department of Bioengineering, and Institute of Biomedical
Engineering, Imperial College London, London, SW7 2AZ, U.K.
- Department
of Life Sciences, Imperial College London, London, SW7 2AZ, U.K.
| | - Joshua Blight
- Department
of Life Sciences, Imperial College London, London, SW7 2AZ, U.K.
| | | | - Matteo Gasbarri
- Institute
of Materials, Ecole Polytechnique Fédérale
de Lausanne (EPFL), 1015 Lausanne, Switzerland
| | - Jonathan C. Brown
- Department
of Infectious Disease, Imperial College
London, London, W2 1PG, U.K.
| | - Junyi Che
- Department
of Materials, Department of Bioengineering, and Institute of Biomedical
Engineering, Imperial College London, London, SW7 2AZ, U.K.
| | - Håkon Høgset
- Department
of Materials, Department of Bioengineering, and Institute of Biomedical
Engineering, Imperial College London, London, SW7 2AZ, U.K.
| | - Catherine Saunders
- Department
of Materials, Department of Bioengineering, and Institute of Biomedical
Engineering, Imperial College London, London, SW7 2AZ, U.K.
| | - Miina Ojansivu
- Department
of Medical Biochemistry and Biophysics, Karolinska Institutet, SE-171 77 Stockholm, Sweden
| | - Zixuan Lu
- Department
of Materials, Department of Bioengineering, and Institute of Biomedical
Engineering, Imperial College London, London, SW7 2AZ, U.K.
| | - Yiyang Lin
- Department
of Materials, Department of Bioengineering, and Institute of Biomedical
Engineering, Imperial College London, London, SW7 2AZ, U.K.
| | - Jonathan Yeow
- Department
of Materials, Department of Bioengineering, and Institute of Biomedical
Engineering, Imperial College London, London, SW7 2AZ, U.K.
| | - Omar Rifaie-Graham
- Department
of Materials, Department of Bioengineering, and Institute of Biomedical
Engineering, Imperial College London, London, SW7 2AZ, U.K.
| | - Michael Potter
- Department
of Materials, Department of Bioengineering, and Institute of Biomedical
Engineering, Imperial College London, London, SW7 2AZ, U.K.
| | - Renée Tonkin
- Department
of Materials, Department of Bioengineering, and Institute of Biomedical
Engineering, Imperial College London, London, SW7 2AZ, U.K.
| | - Jelle Penders
- Department
of Materials, Department of Bioengineering, and Institute of Biomedical
Engineering, Imperial College London, London, SW7 2AZ, U.K.
| | - James J. Doutch
- Rutherford
Appleton Laboratory, ISIS Neutron and Muon
Source, STFC, Didcot OX11 ODE, U.K.
| | - Athina Georgiadou
- Department
of Infectious Disease, Imperial College
London, London, W2 1PG, U.K.
| | - Hanna M. G. Barriga
- Department
of Medical Biochemistry and Biophysics, Karolinska Institutet, SE-171 77 Stockholm, Sweden
| | - Margaret N. Holme
- Department
of Medical Biochemistry and Biophysics, Karolinska Institutet, SE-171 77 Stockholm, Sweden
| | | | - Laurence Bugeon
- Department
of Life Sciences, Imperial College London, London, SW7 2AZ, U.K.
| | | | - Wendy S. Barclay
- Department
of Infectious Disease, Imperial College
London, London, W2 1PG, U.K.
| | - Francesco Stellacci
- Institute
of Materials, Ecole Polytechnique Fédérale
de Lausanne (EPFL), 1015 Lausanne, Switzerland
- Institute
of Bioengineering, Ecole Polytechnique Fédérale
de Lausanne (EPFL), 1015 Lausanne, Switzerland
| | - Jake Baum
- Department
of Life Sciences, Imperial College London, London, SW7 2AZ, U.K.
| | - Molly M. Stevens
- Department
of Materials, Department of Bioengineering, and Institute of Biomedical
Engineering, Imperial College London, London, SW7 2AZ, U.K.
- Department
of Medical Biochemistry and Biophysics, Karolinska Institutet, SE-171 77 Stockholm, Sweden
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6
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Barriga HM, Pence IJ, Holme MN, Doutch JJ, Penders J, Nele V, Thomas MR, Carroni M, Stevens MM. Coupling Lipid Nanoparticle Structure and Automated Single-Particle Composition Analysis to Design Phospholipase-Responsive Nanocarriers. Adv Mater 2022; 34:e2200839. [PMID: 35358374 PMCID: PMC7615489 DOI: 10.1002/adma.202200839] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/26/2022] [Revised: 03/11/2022] [Indexed: 06/14/2023]
Abstract
Lipid nanoparticles (LNPs) are versatile structures with tunable physicochemical properties that are ideally suited as a platform for vaccine delivery and RNA therapeutics. A key barrier to LNP rational design is the inability to relate composition and structure to intracellular processing and function. Here Single Particle Automated Raman Trapping Analysis (SPARTA) is combined with small-angle X-ray and neutron scattering (SAXS/SANS) techniques to link LNP composition with internal structure and morphology and to monitor dynamic LNP-phospholipase D (PLD) interactions. This analysis demonstrates that PLD, a key intracellular trafficking mediator, can access the entire LNP lipid membrane to generate stable, anionic LNPs. PLD activity on vesicles with matched amounts of enzyme substrate is an order of magnitude lower, indicating that the LNP lipid membrane structure can be used to control enzyme interactions. This represents an opportunity to design enzyme-responsive LNP solutions for stimuli-responsive delivery and diseases where PLD is dysregulated.
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Affiliation(s)
- Hanna M.G. Barriga
- Department of Medical Biochemistry and Biophysics Karolinska Institutet, Stockholm SE-171 77, Sweden
| | - Isaac J. Pence
- Department of Materials, Department of Bioengineering,and Institute of Biomedical Engineering, Imperial College London, London SW7 2AZ, UK
| | - Margaret N. Holme
- Department of Medical Biochemistry and Biophysics Karolinska Institutet, Stockholm SE-171 77, Sweden
| | - James J. Doutch
- ISIS Neutron and Muon Source, STFC, Rutherford Appleton Laboratory Didcot OX11 ODE, UK
| | - Jelle Penders
- Department of Materials, Department of Bioengineering,and Institute of Biomedical Engineering, Imperial College London, London SW7 2AZ, UK
| | - Valeria Nele
- Department of Materials, Department of Bioengineering,and Institute of Biomedical Engineering, Imperial College London, London SW7 2AZ, UK
| | - Michael R. Thomas
- Department of Materials, Department of Bioengineering,and Institute of Biomedical Engineering, Imperial College London, London SW7 2AZ, UK
| | - Marta Carroni
- Department of Biochemistry and Biophysics, Science for Life Laboratory Stockholm University, Stockholm 171 65, Sweden
| | - Molly M. Stevens
- Department of Medical Biochemistry and Biophysics Karolinska Institutet, Stockholm SE-171 77, Sweden
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7
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Görgens A, Corso G, Hagey DW, Jawad Wiklander R, Gustafsson MO, Felldin U, Lee Y, Bostancioglu RB, Sork H, Liang X, Zheng W, Mohammad DK, van de Wakker SI, Vader P, Zickler AM, Mamand DR, Ma L, Holme MN, Stevens MM, Wiklander OPB, El Andaloussi S. Identification of storage conditions stabilizing extracellular vesicles preparations. J Extracell Vesicles 2022; 11:e12238. [PMID: 35716060 PMCID: PMC9206228 DOI: 10.1002/jev2.12238] [Citation(s) in RCA: 64] [Impact Index Per Article: 32.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2021] [Revised: 04/23/2022] [Accepted: 05/16/2022] [Indexed: 12/31/2022] Open
Abstract
Extracellular vesicles (EVs) play a key role in many physiological and pathophysiological processes and hold great potential for therapeutic and diagnostic use. Despite significant advances within the last decade, the key issue of EV storage stability remains unresolved and under investigated. Here, we aimed to identify storage conditions stabilizing EVs and comprehensively compared the impact of various storage buffer formulations at different temperatures on EVs derived from different cellular sources for up to 2 years. EV features including concentration, diameter, surface protein profile and nucleic acid contents were assessed by complementary methods, and engineered EVs containing fluorophores or functionalized surface proteins were utilized to compare cellular uptake and ligand binding. We show that storing EVs in PBS over time leads to drastically reduced recovery particularly for pure EV samples at all temperatures tested, starting already within days. We further report that using PBS as diluent was found to result in severely reduced EV recovery rates already within minutes. Several of the tested new buffer conditions largely prevented the observed effects, the lead candidate being PBS supplemented with human albumin and trehalose (PBS-HAT). We report that PBS-HAT buffer facilitates clearly improved short-term and long-term EV preservation for samples stored at -80°C, stability throughout several freeze-thaw cycles, and drastically improved EV recovery when using a diluent for EV samples for downstream applications.
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Affiliation(s)
- André Görgens
- Department of Laboratory Medicine, Clinical Research Center, Karolinska Institutet, Stockholm, Sweden.,Institute for Transfusion Medicine, University Hospital Essen, University of Duisburg-Essen, Essen, Germany.,Evox Therapeutics Limited, Oxford, UK
| | - Giulia Corso
- Department of Laboratory Medicine, Clinical Research Center, Karolinska Institutet, Stockholm, Sweden
| | - Daniel W Hagey
- Department of Laboratory Medicine, Clinical Research Center, Karolinska Institutet, Stockholm, Sweden
| | - Rim Jawad Wiklander
- Department of Laboratory Medicine, Clinical Research Center, Karolinska Institutet, Stockholm, Sweden
| | - Manuela O Gustafsson
- Department of Laboratory Medicine, Clinical Research Center, Karolinska Institutet, Stockholm, Sweden
| | - Ulrika Felldin
- Department of Laboratory Medicine, Clinical Research Center, Karolinska Institutet, Stockholm, Sweden
| | - Yi Lee
- Department of Laboratory Medicine, Clinical Research Center, Karolinska Institutet, Stockholm, Sweden
| | - R Beklem Bostancioglu
- Department of Laboratory Medicine, Clinical Research Center, Karolinska Institutet, Stockholm, Sweden
| | - Helena Sork
- Department of Laboratory Medicine, Clinical Research Center, Karolinska Institutet, Stockholm, Sweden.,Institute of Technology, University of Tartu, Tartu, Estonia
| | - Xiuming Liang
- Department of Laboratory Medicine, Clinical Research Center, Karolinska Institutet, Stockholm, Sweden
| | - Wenyi Zheng
- Department of Laboratory Medicine, Clinical Research Center, Karolinska Institutet, Stockholm, Sweden
| | - Dara K Mohammad
- Department of Laboratory Medicine, Clinical Research Center, Karolinska Institutet, Stockholm, Sweden.,College of Agricultural Engineering Sciences, Salahaddin University-Erbil, Erbil, Kurdistan Region, Iraq
| | - Simonides I van de Wakker
- Department of Cardiology, Experimental Cardiology Laboratory, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
| | - Pieter Vader
- Department of Cardiology, Experimental Cardiology Laboratory, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands.,CDL Research, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
| | - Antje M Zickler
- Department of Laboratory Medicine, Clinical Research Center, Karolinska Institutet, Stockholm, Sweden
| | - Doste R Mamand
- Department of Laboratory Medicine, Clinical Research Center, Karolinska Institutet, Stockholm, Sweden
| | - Li Ma
- Department of Medical Biochemistry and Biophysics, Karolinska Institutet, Stockholm, Sweden
| | - Margaret N Holme
- Department of Medical Biochemistry and Biophysics, Karolinska Institutet, Stockholm, Sweden
| | - Molly M Stevens
- Department of Medical Biochemistry and Biophysics, Karolinska Institutet, Stockholm, Sweden.,Department of Materials, Department of Bioengineering, and Institute of Biomedical Engineering, Imperial College London, London, UK
| | - Oscar P B Wiklander
- Department of Laboratory Medicine, Clinical Research Center, Karolinska Institutet, Stockholm, Sweden.,Evox Therapeutics Limited, Oxford, UK
| | - Samir El Andaloussi
- Department of Laboratory Medicine, Clinical Research Center, Karolinska Institutet, Stockholm, Sweden.,Evox Therapeutics Limited, Oxford, UK.,Department of Physiology, Anatomy and Genetics, University of Oxford, Oxford, UK
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8
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Utterström J, Barriga HMG, Holme MN, Selegård R, Stevens MM, Aili D. Peptide-Folding Triggered Phase Separation and Lipid Membrane Destabilization in Cholesterol-Rich Lipid Vesicles. Bioconjug Chem 2022; 33:736-746. [PMID: 35362952 PMCID: PMC9026255 DOI: 10.1021/acs.bioconjchem.2c00115] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
![]()
Liposome-based drug
delivery systems are widely used to improve
drug pharmacokinetics but can suffer from slow and unspecific release
of encapsulated drugs. Membrane-active peptides, based on sequences
derived or inspired from antimicrobial peptides (AMPs), could offer
means to trigger and control the release. Cholesterol is used in most
liposomal drug delivery systems (DDS) to improve the stability of
the formulation, but the activity of AMPs on cholesterol-rich membranes
tends to be very low, complicating peptide-triggered release strategies.
Here, we show a de novo designed AMP-mimetic peptide that efficiently
triggers content release from cholesterol-containing lipid vesicles
when covalently conjugated to headgroup-functionalized lipids. Binding
to vesicles induces peptide folding and triggers a lipid phase separation,
which in the presence of cholesterol results in high local peptide
concentrations at the lipid bilayer surface and rapid content release.
We anticipate that these results will facilitate the development of
peptide-based strategies for controlling and triggering drug release
from liposomal drug delivery systems.
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Affiliation(s)
- Johanna Utterström
- Laboratory of Molecular Materials, Division of Biophysics and Bioengineering, Department of Physics, Chemistry and Biology, SE-581 83 Linköping, Sweden
| | - Hanna M G Barriga
- Department of Medical Biochemistry and Biophysics, Karolinska Institutet, SE-171 77 Stockholm, Sweden
| | - Margaret N Holme
- Department of Medical Biochemistry and Biophysics, Karolinska Institutet, SE-171 77 Stockholm, Sweden
| | - Robert Selegård
- Laboratory of Molecular Materials, Division of Biophysics and Bioengineering, Department of Physics, Chemistry and Biology, SE-581 83 Linköping, Sweden
| | - Molly M Stevens
- Department of Medical Biochemistry and Biophysics, Karolinska Institutet, SE-171 77 Stockholm, Sweden.,Department of Materials, Department of Bioengineering and Institute of Biomedical Engineering, Imperial College London, London SW7 2AZ, U.K
| | - Daniel Aili
- Laboratory of Molecular Materials, Division of Biophysics and Bioengineering, Department of Physics, Chemistry and Biology, SE-581 83 Linköping, Sweden
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9
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Minelli C, Wywijas M, Bartczak D, Cuello-Nuñez S, Infante HG, Deumer J, Gollwitzer C, Krumrey M, Murphy KE, Johnson ME, Montoro Bustos AR, Strenge IH, Faure B, Høghøj P, Tong V, Burr L, Norling K, Höök F, Roesslein M, Kocic J, Hendriks L, Kestens V, Ramaye Y, Contreras Lopez MC, Auclair G, Mehn D, Gilliland D, Potthoff A, Oelschlägel K, Tentschert J, Jungnickel H, Krause BC, Hachenberger YU, Reichardt P, Luch A, Whittaker TE, Stevens MM, Gupta S, Singh A, Lin FH, Liu YH, Costa AL, Baldisserri C, Jawad R, Andaloussi SEL, Holme MN, Lee TG, Kwak M, Kim J, Ziebel J, Guignard C, Cambier S, Contal S, Gutleb AC, Kuba Tatarkiewicz J, Jankiewicz BJ, Bartosewicz B, Wu X, Fagan JA, Elje E, Rundén-Pran E, Dusinska M, Kaur IP, Price D, Nesbitt I, O Reilly S, Peters RJB, Bucher G, Coleman D, Harrison AJ, Ghanem A, Gering A, McCarron E, Fitzgerald N, Cornelis G, Tuoriniemi J, Sakai M, Tsuchida H, Maguire C, Prina-Mello A, Lawlor AJ, Adams J, Schultz CL, Constantin D, Thanh NTK, Tung LD, Panariello L, Damilos S, Gavriilidis A, Lynch I, Fryer B, Carrazco Quevedo A, Guggenheim E, Briffa S, Valsami-Jones E, Huang Y, Keller AA, Kinnunen VT, Perämäki S, Krpetic Z, Greenwood M, Shard AG. Versailles project on advanced materials and standards (VAMAS) interlaboratory study on measuring the number concentration of colloidal gold nanoparticles. Nanoscale 2022; 14:4690-4704. [PMID: 35262538 DOI: 10.1039/d1nr07775a] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
We describe the outcome of a large international interlaboratory study of the measurement of particle number concentration of colloidal nanoparticles, project 10 of the technical working area 34, "Nanoparticle Populations" of the Versailles Project on Advanced Materials and Standards (VAMAS). A total of 50 laboratories delivered results for the number concentration of 30 nm gold colloidal nanoparticles measured using particle tracking analysis (PTA), single particle inductively coupled plasma mass spectrometry (spICP-MS), ultraviolet-visible (UV-Vis) light spectroscopy, centrifugal liquid sedimentation (CLS) and small angle X-ray scattering (SAXS). The study provides quantitative data to evaluate the repeatability of these methods and their reproducibility in the measurement of number concentration of model nanoparticle systems following a common measurement protocol. We find that the population-averaging methods of SAXS, CLS and UV-Vis have high measurement repeatability and reproducibility, with between-labs variability of 2.6%, 11% and 1.4% respectively. However, results may be significantly biased for reasons including inaccurate material properties whose values are used to compute the number concentration. Particle-counting method results are less reproducibile than population-averaging methods, with measured between-labs variability of 68% and 46% for PTA and spICP-MS respectively. This study provides the stakeholder community with important comparative data to underpin measurement reproducibility and method validation for number concentration of nanoparticles.
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Affiliation(s)
- Caterina Minelli
- Chemical & Biological Sciences Department, National Physical Laboratory, Hampton Road, Teddington TW11 0LW, UK.
| | - Magdalena Wywijas
- Chemical & Biological Sciences Department, National Physical Laboratory, Hampton Road, Teddington TW11 0LW, UK.
| | - Dorota Bartczak
- National Measurement Laboratory, Queens road, Teddington TW11 0LY, UK
| | | | | | - Jerome Deumer
- Physikalisch-Technische Bundesanstalt (PTB), Abbestr. 2-12, 10587 Berlin, Germany
| | - Christian Gollwitzer
- Physikalisch-Technische Bundesanstalt (PTB), Abbestr. 2-12, 10587 Berlin, Germany
| | - Michael Krumrey
- Physikalisch-Technische Bundesanstalt (PTB), Abbestr. 2-12, 10587 Berlin, Germany
| | - Karen E Murphy
- National Institute of Standards and Technology, 100 Bureau Drive, Gaithersburg, Maryland 20899-8391, USA
| | - Monique E Johnson
- National Institute of Standards and Technology, 100 Bureau Drive, Gaithersburg, Maryland 20899-8391, USA
| | - Antonio R Montoro Bustos
- National Institute of Standards and Technology, 100 Bureau Drive, Gaithersburg, Maryland 20899-8391, USA
| | - Ingo H Strenge
- National Institute of Standards and Technology, 100 Bureau Drive, Gaithersburg, Maryland 20899-8391, USA
| | - Bertrand Faure
- Xenocs SAS, 1-3 Allée du Nanomètre, 38000 Grenoble, France
| | - Peter Høghøj
- Xenocs SAS, 1-3 Allée du Nanomètre, 38000 Grenoble, France
| | - Vivian Tong
- Chemical & Biological Sciences Department, National Physical Laboratory, Hampton Road, Teddington TW11 0LW, UK.
| | - Loïc Burr
- CSEM SA, Bahnhofstrasse 1, 7242 Landquart, Switzerland
| | - Karin Norling
- Chalmers University of Technology, Gothenburg 412 96, Sweden
| | - Fredrik Höök
- Chalmers University of Technology, Gothenburg 412 96, Sweden
| | - Matthias Roesslein
- Empa, Swiss Federal Laboratories for Material Science and Technology, Lerchenfeldstrasse 5, CH-9014 St Gallen, Switzerland
| | - Jovana Kocic
- ETH Zurich, Vladimir-Prelog-Weg 1, 8093 Zurich, Switzerland
| | | | - Vikram Kestens
- European Commission, Joint Research Centre (JRC), Geel, Belgium
| | - Yannic Ramaye
- European Commission, Joint Research Centre (JRC), Geel, Belgium
| | | | - Guy Auclair
- European Commission, Joint Research Centre (JRC), Geel, Belgium
| | - Dora Mehn
- European Commission, Joint Research Centre (JRC), Ispra, Italy
| | | | - Annegret Potthoff
- Fraunhofer Institute for Ceramic Technologies and Systems IKTS, Winterbergstr. 28, 01217 Dresden, Germany
| | - Kathrin Oelschlägel
- Fraunhofer Institute for Ceramic Technologies and Systems IKTS, Winterbergstr. 28, 01217 Dresden, Germany
| | - Jutta Tentschert
- The German Federal Institute for Risk Assessment, Max-Dohrn Str. 8-10, Berlin, Germany
| | - Harald Jungnickel
- The German Federal Institute for Risk Assessment, Max-Dohrn Str. 8-10, Berlin, Germany
| | - Benjamin C Krause
- The German Federal Institute for Risk Assessment, Max-Dohrn Str. 8-10, Berlin, Germany
| | - Yves U Hachenberger
- The German Federal Institute for Risk Assessment, Max-Dohrn Str. 8-10, Berlin, Germany
| | - Philipp Reichardt
- The German Federal Institute for Risk Assessment, Max-Dohrn Str. 8-10, Berlin, Germany
| | - Andreas Luch
- The German Federal Institute for Risk Assessment, Max-Dohrn Str. 8-10, Berlin, Germany
| | - Thomas E Whittaker
- Department of Materials, Department of Bioengineering and Institute of Biomedical Engineering, Imperial College London, Exhibition road, London SW7 2BX, UK
| | - Molly M Stevens
- Department of Materials, Department of Bioengineering and Institute of Biomedical Engineering, Imperial College London, Exhibition road, London SW7 2BX, UK
| | - Shalini Gupta
- Indian Institute of Technology Delhi, New Delhi 110016, India
| | - Akash Singh
- Indian Institute of Technology Delhi, New Delhi 110016, India
| | - Fang-Hsin Lin
- Centre for Measurement Standards, Industrial Technology Research Institute, No. 321, Sec. 2, Kuang Fu Rd., Hsinchu, 30011, Taiwan, Republic of China
| | - Yi-Hung Liu
- Centre for Measurement Standards, Industrial Technology Research Institute, No. 321, Sec. 2, Kuang Fu Rd., Hsinchu, 30011, Taiwan, Republic of China
| | - Anna Luisa Costa
- Institute of Science and Technology for Ceramics, Via Granarolo 64, 48018 Faenza, Italy
| | - Carlo Baldisserri
- Institute of Science and Technology for Ceramics, Via Granarolo 64, 48018 Faenza, Italy
| | - Rid Jawad
- Karolinska Institutet, 171 77 Stockholm, Sweden
| | | | - Margaret N Holme
- Karolinska Institutet, 171 77 Stockholm, Sweden
- Department of Materials, Department of Bioengineering and Institute of Biomedical Engineering, Imperial College London, Exhibition road, London SW7 2BX, UK
| | - Tae Geol Lee
- Korea Research Institute of Standards and Science (KRISS), 267 Gajeong-ro, Yuseong-gu, Daejeon 34113, Korea
| | - Minjeong Kwak
- Korea Research Institute of Standards and Science (KRISS), 267 Gajeong-ro, Yuseong-gu, Daejeon 34113, Korea
| | - Jaeseok Kim
- Korea Research Institute of Standards and Science (KRISS), 267 Gajeong-ro, Yuseong-gu, Daejeon 34113, Korea
| | - Johanna Ziebel
- Luxembourg Institute of Science and Technology, 41 rue du Brill, L-4422 Belvaux, Luxembourg
| | - Cedric Guignard
- Luxembourg Institute of Science and Technology, 41 rue du Brill, L-4422 Belvaux, Luxembourg
| | - Sebastien Cambier
- Luxembourg Institute of Science and Technology, 41 rue du Brill, L-4422 Belvaux, Luxembourg
| | - Servane Contal
- Luxembourg Institute of Science and Technology, 41 rue du Brill, L-4422 Belvaux, Luxembourg
| | - Arno C Gutleb
- Luxembourg Institute of Science and Technology, 41 rue du Brill, L-4422 Belvaux, Luxembourg
| | | | | | - Bartosz Bartosewicz
- Military University of Technology, gen. Sylwestra Kaliskiego 2 str., 00-908 Warsaw, Poland
| | - Xiaochun Wu
- National Center for Nanoscience and Technology (NCNST), No. 11, ZhongGuanCun BeiYiTiao, Beijing 100190, People's Republic of China
| | - Jeffrey A Fagan
- National Institute of Standards and Technology, 100 Bureau Drive, Gaithersburg, Maryland 20899-8391, USA
| | - Elisabeth Elje
- NILU-Norwegian Institute for Air Research, Instituttveien 18, 2007 Kjeller, Norway
- University of Oslo, Sognsvannsveien 9, 0372 Oslo, Norway
| | - Elise Rundén-Pran
- NILU-Norwegian Institute for Air Research, Instituttveien 18, 2007 Kjeller, Norway
| | - Maria Dusinska
- NILU-Norwegian Institute for Air Research, Instituttveien 18, 2007 Kjeller, Norway
| | - Inder Preet Kaur
- Nottingham Trent University, 50 Shakespeare St, Nottingham NG1 4FQ, UK
| | - David Price
- PerkinElmer, Chalfont Road, Seer Green, Bucks HP92FX, UK
| | - Ian Nesbitt
- Public Analyst's Laboratory, Sir Patrick Duns, Lower Grand Canal Street, Dublin 2, D02 P667, Ireland
| | - Sarah O Reilly
- Public Analyst's Laboratory, Sir Patrick Duns, Lower Grand Canal Street, Dublin 2, D02 P667, Ireland
| | - Ruud J B Peters
- Wageningen Food Safety Research, Wageningen University & Research, Akkermaalsbos 2, 6708 WB Wageningen, The Netherlands
| | - Guillaume Bucher
- Service Commun des Laboratoires, 3 Avenue Dr Albert Schweitzer, 33600 Pessac, France
| | | | | | - Antoine Ghanem
- SOLVAY Research & Innovation, Brussels Centre, Rue de Ransbeek 310, 1120 Brussels, Belgium
| | - Anne Gering
- SOLVAY Research & Innovation, Brussels Centre, Rue de Ransbeek 310, 1120 Brussels, Belgium
| | - Eileen McCarron
- State Laboratory, Backweston Campus, Young's Cross, Celbridge, Co Kildare, W23 VW2C, Ireland
| | - Niamh Fitzgerald
- State Laboratory, Backweston Campus, Young's Cross, Celbridge, Co Kildare, W23 VW2C, Ireland
| | - Geert Cornelis
- Swedish University of Agricultural Sciences, Lennart Hjelms väg 9, 75651 Uppsala, Sweden
| | - Jani Tuoriniemi
- Swedish University of Agricultural Sciences, Lennart Hjelms väg 9, 75651 Uppsala, Sweden
| | - Midori Sakai
- Toray Research Center, Inc., 3-3-7 Sonoyama, Otsu, Shiga 5208567, Japan
| | - Hidehisa Tsuchida
- Toray Research Center, Inc., 3-3-7 Sonoyama, Otsu, Shiga 5208567, Japan
| | - Ciarán Maguire
- Trinity Translational Medicine Institute, Trinity College Dublin, Dublin, Ireland
| | - Adriele Prina-Mello
- Trinity Translational Medicine Institute, Trinity College Dublin, Dublin, Ireland
| | - Alan J Lawlor
- UK centre for Ecology and Hydrology, Lancaster Environment Centre, Library Avenue, Bailrigg, Lancaster LA1 4AP, UK
| | - Jessica Adams
- UK centre for Ecology and Hydrology, Lancaster Environment Centre, Library Avenue, Bailrigg, Lancaster LA1 4AP, UK
| | - Carolin L Schultz
- UK Centre for Ecology and Hydrology, Maclean Building, Benson Lane, Crowmarsh-Gifford, Wallingford, OX10 8BB, UK
| | - Doru Constantin
- Laboratoire de Physique des Solides, Université Paris-Saclay, CNRS, 91405 Orsay, France
| | - Nguyen Thi Kim Thanh
- Department of Physics and Astronomy, University College London, Gower Street, London WC1E 6BT, UK
| | - Le Duc Tung
- Department of Physics and Astronomy, University College London, Gower Street, London WC1E 6BT, UK
| | - Luca Panariello
- Department of Chemical Engineering, University College London, Torrington Place, London, WC1E 7JE, UK
| | - Spyridon Damilos
- Department of Chemical Engineering, University College London, Torrington Place, London, WC1E 7JE, UK
| | - Asterios Gavriilidis
- Department of Chemical Engineering, University College London, Torrington Place, London, WC1E 7JE, UK
| | - Iseult Lynch
- School of Geography, Earth and Environmental Sciences, University of Birmingham, Edgbaston, B15 2TT Birmingham, UK
| | - Benjamin Fryer
- School of Geography, Earth and Environmental Sciences, University of Birmingham, Edgbaston, B15 2TT Birmingham, UK
| | - Ana Carrazco Quevedo
- School of Geography, Earth and Environmental Sciences, University of Birmingham, Edgbaston, B15 2TT Birmingham, UK
| | - Emily Guggenheim
- School of Geography, Earth and Environmental Sciences, University of Birmingham, Edgbaston, B15 2TT Birmingham, UK
| | - Sophie Briffa
- School of Geography, Earth and Environmental Sciences, University of Birmingham, Edgbaston, B15 2TT Birmingham, UK
| | - Eugenia Valsami-Jones
- School of Geography, Earth and Environmental Sciences, University of Birmingham, Edgbaston, B15 2TT Birmingham, UK
| | - Yuxiong Huang
- Bren School of Environmental Science and Management, University of California at Santa Barbara, CA, 93106, USA
| | - Arturo A Keller
- Bren School of Environmental Science and Management, University of California at Santa Barbara, CA, 93106, USA
| | - Virva-Tuuli Kinnunen
- Department of Chemistry, University of Jyväskylä, P.O. Box 35, FI-40014 Jyväskylä, Finland
| | - Siiri Perämäki
- Department of Chemistry, University of Jyväskylä, P.O. Box 35, FI-40014 Jyväskylä, Finland
| | - Zeljka Krpetic
- School of Science Engineering and Environment, University of Salford, M5 4WT Salford, UK
| | - Michael Greenwood
- School of Science Engineering and Environment, University of Salford, M5 4WT Salford, UK
| | - Alexander G Shard
- Chemical & Biological Sciences Department, National Physical Laboratory, Hampton Road, Teddington TW11 0LW, UK.
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10
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Bost JP, Barriga H, Holme MN, Gallud A, Maugeri M, Gupta D, Lehto T, Valadi H, Esbjörner EK, Stevens MM, El-Andaloussi S. Correction to "Delivery of Oligonucleotide Therapeutics: Chemical Modifications, Lipid Nanoparticles, and Extracellular Vesicles". ACS Nano 2021; 15:18590-18591. [PMID: 34714048 PMCID: PMC11027590 DOI: 10.1021/acsnano.1c09275] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
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11
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Nele V, Holme MN, Rashid MH, Barriga HMG, Le TC, Thomas MR, Doutch JJ, Yarovsky I, Stevens MM. Design of Lipid-Based Nanocarriers via Cation Modulation of Ethanol-Interdigitated Lipid Membranes. Langmuir 2021; 37:11909-11921. [PMID: 34581180 DOI: 10.1021/acs.langmuir.1c02076] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Short-chain alcohols (i.e., ethanol) can induce membrane interdigitation in saturated-chain phosphatidylcholines (PCs). In this process, alcohol molecules intercalate between phosphate heads, increasing lateral separation and favoring hydrophobic interactions between opposing acyl chains, which interpenetrate forming an interdigitated phase. Unraveling mechanisms underlying the interactions between ethanol and model lipid membranes has implications for cell biology, biochemistry, and for the formulation of lipid-based nanocarriers. However, investigations of ethanol-lipid membrane systems have been carried out in deionized water, which limits their applicability. Here, using a combination of small- and wide-angle X-ray scattering, small-angle neutron scattering, and all-atom molecular dynamics simulations, we analyzed the effect of varying CaCl2 and NaCl concentrations on ethanol-induced interdigitation. We observed that while ethanol addition leads to the interdigitation of bulk phase 1,2-dipalmitoyl-sn-glycero-3-phosphocholine (DPPC) bilayers in the presence of CaCl2 and NaCl regardless of the salt concentration, the ethanol-induced interdigitation of vesicular DPPC depends on the choice of cation and its concentration. These findings unravel a key role for cations in the ethanol-induced interdigitation of lipid membranes in either bulk phase or vesicular form.
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Affiliation(s)
- Valeria Nele
- Department of Materials, Department of Bioengineering and Institute of Biomedical Engineering, Imperial College London, London SW7 2AZ, U.K
| | - Margaret N Holme
- Department of Materials, Department of Bioengineering and Institute of Biomedical Engineering, Imperial College London, London SW7 2AZ, U.K
- Department of Medical Biochemistry and Biophysics, Karolinska Institutet, SE-171 77 Stockholm, Sweden
| | - M Harunur Rashid
- School of Engineering, RMIT University, Melbourne, Victoria 3001, Australia
- Department of Mathematics and Physics, North South University, Bashundhara, Dhaka 1229, Bangladesh
| | - Hanna M G Barriga
- Department of Medical Biochemistry and Biophysics, Karolinska Institutet, SE-171 77 Stockholm, Sweden
| | - Tu C Le
- School of Engineering, RMIT University, Melbourne, Victoria 3001, Australia
| | - Michael R Thomas
- Department of Materials, Department of Bioengineering and Institute of Biomedical Engineering, Imperial College London, London SW7 2AZ, U.K
- London Centre for Nanotechnology and Department of Biochemical Engineering, University College London, 17-19 Gordon Street, London WC1H 0AH, U.K
| | - James J Doutch
- ISIS Neutron and Muon Source, STFC, Rutherford Appleton Laboratory, Didcot OX11 ODE, U.K
| | - Irene Yarovsky
- School of Engineering, RMIT University, Melbourne, Victoria 3001, Australia
| | - Molly M Stevens
- Department of Materials, Department of Bioengineering and Institute of Biomedical Engineering, Imperial College London, London SW7 2AZ, U.K
- Department of Medical Biochemistry and Biophysics, Karolinska Institutet, SE-171 77 Stockholm, Sweden
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12
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Bost JP, Barriga H, Holme MN, Gallud A, Maugeri M, Gupta D, Lehto T, Valadi H, Esbjörner EK, Stevens MM, El-Andaloussi S. Delivery of Oligonucleotide Therapeutics: Chemical Modifications, Lipid Nanoparticles, and Extracellular Vesicles. ACS Nano 2021; 15:13993-14021. [PMID: 34505766 PMCID: PMC8482762 DOI: 10.1021/acsnano.1c05099] [Citation(s) in RCA: 61] [Impact Index Per Article: 20.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/15/2021] [Indexed: 05/04/2023]
Abstract
Oligonucleotides (ONs) comprise a rapidly growing class of therapeutics. In recent years, the list of FDA-approved ON therapies has rapidly expanded. ONs are small (15-30 bp) nucleotide-based therapeutics which are capable of targeting DNA and RNA as well as other biomolecules. ONs can be subdivided into several classes based on their chemical modifications and on the mechanisms of their target interactions. Historically, the largest hindrance to the widespread usage of ON therapeutics has been their inability to effectively internalize into cells and escape from endosomes to reach their molecular targets in the cytosol or nucleus. While cell uptake has been improved, "endosomal escape" remains a significant problem. There are a range of approaches to overcome this, and in this review, we focus on three: altering the chemical structure of the ONs, formulating synthetic, lipid-based nanoparticles to encapsulate the ONs, or biologically loading the ONs into extracellular vesicles. This review provides a background to the design and mode of action of existing FDA-approved ONs. It presents the most common ON classifications and chemical modifications from a fundamental scientific perspective and provides a roadmap of the cellular uptake pathways by which ONs are trafficked. Finally, this review delves into each of the above-mentioned approaches to ON delivery, highlighting the scientific principles behind each and covering recent advances.
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Affiliation(s)
- Jeremy P. Bost
- Department
of Laboratory Medicine, Karolinska Institutet, Huddinge 14152, Sweden
| | - Hanna Barriga
- Department
of Medical Biochemistry and Biophysics, Karolinska Institutet, Stockholm 17177, Sweden
| | - Margaret N. Holme
- Department
of Medical Biochemistry and Biophysics, Karolinska Institutet, Stockholm 17177, Sweden
| | - Audrey Gallud
- Department
of Biology and Biological Engineering, Chalmers
University of Technology, Gothenburg 41296, Sweden
- Advanced
Drug Delivery, Pharmaceutical Sciences, R&D, AstraZeneca, Gothenburg 43150, Sweden
| | - Marco Maugeri
- Department
of Rheumatology and Inflammation Research, Institute of Medicine,
Sahlgrenska Academy, University of Gothenburg, Gothenburg 41390, Sweden
| | - Dhanu Gupta
- Department
of Laboratory Medicine, Karolinska Institutet, Huddinge 14152, Sweden
| | - Taavi Lehto
- Department
of Laboratory Medicine, Karolinska Institutet, Huddinge 14152, Sweden
- Institute
of Technology, University of Tartu, Nooruse 1, Tartu 50411, Estonia
| | - Hadi Valadi
- Department
of Rheumatology and Inflammation Research, Institute of Medicine,
Sahlgrenska Academy, University of Gothenburg, Gothenburg 41390, Sweden
| | - Elin K. Esbjörner
- Department
of Biology and Biological Engineering, Chalmers
University of Technology, Gothenburg 41296, Sweden
| | - Molly M. Stevens
- Department
of Medical Biochemistry and Biophysics, Karolinska Institutet, Stockholm 17177, Sweden
- Department
of Materials, Department of Bioengineering, Institute of Biomedical
Engineering, Imperial College London, London SW7 2BU, United Kingdom
| | - Samir El-Andaloussi
- Department
of Laboratory Medicine, Karolinska Institutet, Huddinge 14152, Sweden
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13
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Potter M, Najer A, Klöckner A, Zhang S, Holme MN, Nele V, Che J, Massi L, Penders J, Saunders C, Doutch JJ, Edwards AM, Ces O, Stevens MM. Controlled Dendrimersome Nanoreactor System for Localized Hypochlorite-Induced Killing of Bacteria. ACS Nano 2020; 14:17333-17353. [PMID: 33290039 PMCID: PMC7760217 DOI: 10.1021/acsnano.0c07459] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/04/2020] [Accepted: 11/23/2020] [Indexed: 05/20/2023]
Abstract
Antibiotic resistance is a serious global health problem necessitating new bactericidal approaches such as nanomedicines. Dendrimersomes (DSs) have recently become a valuable alternative nanocarrier to polymersomes and liposomes due to their molecular definition and synthetic versatility. Despite this, their biomedical application is still in its infancy. Inspired by the localized antimicrobial function of neutrophil phagosomes and the versatility of DSs, a simple three-component DS-based nanoreactor with broad-spectrum bactericidal activity is presented. This was achieved by encapsulation of glucose oxidase (GOX) and myeloperoxidase (MPO) within DSs (GOX-MPO-DSs), self-assembled from an amphiphilic Janus dendrimer, that possesses a semipermeable membrane. By external addition of glucose to GOX-MPO-DS, the production of hypochlorite (-OCl), a highly potent antimicrobial, by the enzymatic cascade was demonstrated. This cascade nanoreactor yielded a potent bactericidal effect against two important multidrug resistant pathogens, Staphylococcus aureus (S. aureus) and Pseudomonas aeruginosa (P. aeruginosa), not observed for H2O2 producing nanoreactors, GOX-DS. The production of highly reactive species such as -OCl represents a harsh bactericidal approach that could also be cytotoxic to mammalian cells. This necessitates the development of strategies for activating -OCl production in a localized manner in response to a bacterial stimulus. One option of locally releasing sufficient amounts of substrate using a bacterial trigger (released toxins) was demonstrated with lipidic glucose-loaded giant unilamellar vesicles (GUVs), envisioning, e.g., implant surface modification with nanoreactors and GUVs for localized production of bactericidal agents in the presence of bacterial growth.
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Affiliation(s)
- Michael Potter
- Department
of Materials, Department of Bioengineering, and Institute of Biomedical
Engineering, Imperial College London, London SW7 2AZ, U.K.
- Department
of Chemistry and Institute of Chemical Biology, Imperial College London, Molecular Sciences Research Hub, London W12 0BZ, U.K.
| | - Adrian Najer
- Department
of Materials, Department of Bioengineering, and Institute of Biomedical
Engineering, Imperial College London, London SW7 2AZ, U.K.
| | - Anna Klöckner
- Department
of Materials, Department of Bioengineering, and Institute of Biomedical
Engineering, Imperial College London, London SW7 2AZ, U.K.
- MRC
Centre for Molecular Bacteriology and Infection, Imperial College London, London SW7 2AZ, U.K.
| | - Shaodong Zhang
- Department
of Materials, Department of Bioengineering, and Institute of Biomedical
Engineering, Imperial College London, London SW7 2AZ, U.K.
| | - Margaret N. Holme
- Department
of Materials, Department of Bioengineering, and Institute of Biomedical
Engineering, Imperial College London, London SW7 2AZ, U.K.
- Department
of Medical Biochemistry and Biophysics, Karolinska Institutet, SE-171 77 Stockholm, Sweden
| | - Valeria Nele
- Department
of Materials, Department of Bioengineering, and Institute of Biomedical
Engineering, Imperial College London, London SW7 2AZ, U.K.
| | - Junyi Che
- Department
of Materials, Department of Bioengineering, and Institute of Biomedical
Engineering, Imperial College London, London SW7 2AZ, U.K.
| | - Lucia Massi
- Department
of Materials, Department of Bioengineering, and Institute of Biomedical
Engineering, Imperial College London, London SW7 2AZ, U.K.
| | - Jelle Penders
- Department
of Materials, Department of Bioengineering, and Institute of Biomedical
Engineering, Imperial College London, London SW7 2AZ, U.K.
| | - Catherine Saunders
- Department
of Materials, Department of Bioengineering, and Institute of Biomedical
Engineering, Imperial College London, London SW7 2AZ, U.K.
| | - James J. Doutch
- Rutherford
Appleton Laboratory, ISIS Neutron and Muon
Source, STFC, Didcot OX11 ODE, U.K.
| | - Andrew M. Edwards
- MRC
Centre for Molecular Bacteriology and Infection, Imperial College London, London SW7 2AZ, U.K.
| | - Oscar Ces
- Department
of Chemistry and Institute of Chemical Biology, Imperial College London, Molecular Sciences Research Hub, London W12 0BZ, U.K.
| | - Molly M. Stevens
- Department
of Materials, Department of Bioengineering, and Institute of Biomedical
Engineering, Imperial College London, London SW7 2AZ, U.K.
- Department
of Medical Biochemistry and Biophysics, Karolinska Institutet, SE-171 77 Stockholm, Sweden
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14
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Kauscher U, Penders J, Nagelkerke A, Holme MN, Nele V, Massi L, Gopal S, Whittaker TE, Stevens MM. Gold Nanocluster Extracellular Vesicle Supraparticles: Self-Assembled Nanostructures for Three-Dimensional Uptake Visualization. Langmuir 2020; 36:3912-3923. [PMID: 32250120 PMCID: PMC7161082 DOI: 10.1021/acs.langmuir.9b03479] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
Extracellular vesicles (EVs) are secreted by the vast majority of cells and are being intensively studied due to their emerging involvement in a variety of cellular communication processes. However, the study of their cellular uptake and fate has been hampered by difficulty in imaging EVs against the cellular background. Here, we show that EVs combined with hydrophobic gold nanoclusters (AuNCs) can self-assemble into supraparticles, offering an excellent labeling strategy for high-resolution electron microscopic imaging in vitro. We have tracked and visualized the reuptake of breast cancer cell-derived EV AuNC supraparticles into their parent cells, from early endocytosis to lysosomal degradation, using focused ion beam-scanning electron microscopy (FIB-SEM). The presence of gold within the EVs and lysosomes was confirmed via DF-STEM EDX analysis of lift-out sections. The demonstrated formation of AuNC EV supraparticles will facilitate future applications in EV imaging as well as the EV-assisted cellular delivery of AuNCs.
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Affiliation(s)
- Ulrike Kauscher
- Department
of Materials, Department of Bioengineering, and Institute of Biomedical Engineering, Imperial College London, London SW7 2AZ, United Kingdom
| | - Jelle Penders
- Department
of Materials, Department of Bioengineering, and Institute of Biomedical Engineering, Imperial College London, London SW7 2AZ, United Kingdom
| | - Anika Nagelkerke
- Department
of Materials, Department of Bioengineering, and Institute of Biomedical Engineering, Imperial College London, London SW7 2AZ, United Kingdom
- University
of Groningen, Groningen Research Institute
of Pharmacy, Pharmaceutical Analysis,
POB 196 XB20, NL-9700 AD Groningen, The Netherlands
| | - Margaret N. Holme
- Department
of Materials, Department of Bioengineering, and Institute of Biomedical Engineering, Imperial College London, London SW7 2AZ, United Kingdom
- Department
of Medical Biochemistry and Biophysics, Karolinska Institutet, Stockholm SE-171 77, Sweden
| | - Valeria Nele
- Department
of Materials, Department of Bioengineering, and Institute of Biomedical Engineering, Imperial College London, London SW7 2AZ, United Kingdom
| | - Lucia Massi
- Department
of Materials, Department of Bioengineering, and Institute of Biomedical Engineering, Imperial College London, London SW7 2AZ, United Kingdom
| | - Sahana Gopal
- Department
of Materials, Department of Bioengineering, and Institute of Biomedical Engineering, Imperial College London, London SW7 2AZ, United Kingdom
| | - Thomas E. Whittaker
- Department
of Materials, Department of Bioengineering, and Institute of Biomedical Engineering, Imperial College London, London SW7 2AZ, United Kingdom
| | - Molly M. Stevens
- Department
of Materials, Department of Bioengineering, and Institute of Biomedical Engineering, Imperial College London, London SW7 2AZ, United Kingdom
- Department
of Medical Biochemistry and Biophysics, Karolinska Institutet, Stockholm SE-171 77, Sweden
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15
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Hansel CS, Holme MN, Gopal S, Stevens MM. Advances in high-resolution microscopy for the study of intracellular interactions with biomaterials. Biomaterials 2020; 226:119406. [DOI: 10.1016/j.biomaterials.2019.119406] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2019] [Revised: 07/16/2019] [Accepted: 08/01/2019] [Indexed: 12/15/2022]
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16
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Nele V, Holme MN, Kauscher U, Thomas MR, Doutch JJ, Stevens MM. Effect of Formulation Method, Lipid Composition, and PEGylation on Vesicle Lamellarity: A Small-Angle Neutron Scattering Study. Langmuir 2019; 35:6064-6074. [PMID: 30977658 PMCID: PMC6506804 DOI: 10.1021/acs.langmuir.8b04256] [Citation(s) in RCA: 55] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/02/2023]
Abstract
Liposomes are well-established systems for drug delivery and biosensing applications. The design of a liposomal carrier requires careful choice of lipid composition and formulation method. These determine many vesicle properties including lamellarity, which can have a strong effect on both encapsulation efficiency and the efflux rate of encapsulated active compounds. Despite this, a comprehensive study on how the lipid composition and formulation method affect vesicle lamellarity is still lacking. Here, we combine small-angle neutron scattering and cryogenic transmission electron microscopy to study the effect of three different well-established formulation methods followed by extrusion through 100 nm polycarbonate membranes on the resulting vesicle membrane structure. Specifically, we examine vesicles formulated from the commonly used phospholipids 1-palmitoyl-2-oleoyl- sn-glycero-3-phosphocholine (POPC), 1,2-dipalmitoyl- sn-glycero-3-phosphocholine (DPPC) and 1,2-dioleoyl- sn-glycero-3-phosphocholine (DOPC) via film hydration followed by (i) agitation on a shaker or (ii) freeze-thawing, or (iii) the reverse-phase evaporation vesicle method. After extrusion, up to half of the total lipid content is still assembled into multilamellar structures. However, we achieved unilamellar vesicle populations when as little as 0.1 mol % PEG-modified lipid was included in the vesicle formulation. Interestingly, DPPC with 5 mol % PEGylated lipid produces a combination of cylindrical micelles and vesicles. In conclusion, our results provide important insights into the effect of the formulation method and lipid composition on producing liposomes with a defined membrane structure.
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Affiliation(s)
- Valeria Nele
- Department
of Materials, Department of Bioengineering, and Institute of Biomedical Engineering, Imperial College London, London SW7 2AZ, U.K.
| | - Margaret N. Holme
- Department
of Materials, Department of Bioengineering, and Institute of Biomedical Engineering, Imperial College London, London SW7 2AZ, U.K.
- Department
of Medical Biochemistry and Biophysics, Karolinska Institutet, SE-171 77 Stockholm, Sweden
- E-mail: (M.N.H.)
| | - Ulrike Kauscher
- Department
of Materials, Department of Bioengineering, and Institute of Biomedical Engineering, Imperial College London, London SW7 2AZ, U.K.
| | - Michael R. Thomas
- Department
of Materials, Department of Bioengineering, and Institute of Biomedical Engineering, Imperial College London, London SW7 2AZ, U.K.
| | - James J. Doutch
- ISIS
Neutron and Muon Source, STFC, Rutherford
Appleton Laboratory, Didcot OX11 ODE, U.K.
| | - Molly M. Stevens
- Department
of Materials, Department of Bioengineering, and Institute of Biomedical Engineering, Imperial College London, London SW7 2AZ, U.K.
- Department
of Medical Biochemistry and Biophysics, Karolinska Institutet, SE-171 77 Stockholm, Sweden
- E-mail: (M.M.S.)
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17
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Barriga HMG, Holme MN, Stevens MM. Cubosomes: The Next Generation of Smart Lipid Nanoparticles? Angew Chem Int Ed Engl 2019; 58:2958-2978. [PMID: 29926520 PMCID: PMC6606436 DOI: 10.1002/anie.201804067] [Citation(s) in RCA: 237] [Impact Index Per Article: 47.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2018] [Revised: 06/12/2018] [Indexed: 12/13/2022]
Abstract
Cubosomes are highly stable nanoparticles formed from the lipid cubic phase and stabilized by a polymer based outer corona. Bicontinuous lipid cubic phases consist of a single lipid bilayer that forms a continuous periodic membrane lattice structure with pores formed by two interwoven water channels. Cubosome composition can be tuned to engineer pore sizes or include bioactive lipids, the polymer outer corona can be used for targeting and they are highly stable under physiological conditions. Compared to liposomes, the structure provides a significantly higher membrane surface area for loading of membrane proteins and small drug molecules. Owing to recent advances, they can be engineered in vitro in both bulk and nanoparticle formats with applications including drug delivery, membrane bioreactors, artificial cells, and biosensors. This review outlines recent advances in cubosome technology enabling their application and provides guidelines for the rational design of new systems for biomedical applications.
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Affiliation(s)
- Hanna M. G. Barriga
- Department of Medical Biochemistry and Biophysics, Karolinska Institute, Stockholm, Sweden
| | - Margaret N. Holme
- Department of Medical Biochemistry and Biophysics, Karolinska Institute, Stockholm, Sweden
| | - Molly M. Stevens
- Department of Medical Biochemistry and Biophysics, Karolinska Institute, Stockholm, Sweden
- Departments of Materials and Bioengineering and Institute of Biomedical Engineering, Imperial College London, London, UK
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18
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Kauscher U, Holme MN, Björnmalm M, Stevens MM. Physical stimuli-responsive vesicles in drug delivery: Beyond liposomes and polymersomes. Adv Drug Deliv Rev 2019; 138:259-275. [PMID: 30947810 PMCID: PMC7180078 DOI: 10.1016/j.addr.2018.10.012] [Citation(s) in RCA: 113] [Impact Index Per Article: 22.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2018] [Revised: 09/30/2018] [Accepted: 10/22/2018] [Indexed: 12/11/2022]
Abstract
Over the past few decades, a range of vesicle-based drug delivery systems have entered clinical practice and several others are in various stages of clinical translation. While most of these vesicle constructs are lipid-based (liposomes), or polymer-based (polymersomes), recently new classes of vesicles have emerged that defy easy classification. Examples include assemblies with small molecule amphiphiles, biologically derived membranes, hybrid vesicles with two or more classes of amphiphiles, or more complex hierarchical structures such as vesicles incorporating gas bubbles or nanoparticulates in the lumen or membrane. In this review, we explore these recent advances and emerging trends at the edge and just beyond the research fields of conventional liposomes and polymersomes. A focus of this review is the distinct behaviors observed for these classes of vesicles when exposed to physical stimuli - such as ultrasound, heat, light and mechanical triggers - and we discuss the resulting potential for new types of drug delivery, with a special emphasis on current challenges and opportunities.
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Affiliation(s)
- Ulrike Kauscher
- Department of Materials, Imperial College London, London SW7 2AZ, UK; Department of Bioengineering, Imperial College London, London SW7 2AZ, UK; Institute of Biomedical Engineering, Imperial College London, London SW7 2AZ, UK
| | - Margaret N Holme
- Department of Medical Biochemistry and Biophysics, Karolinska Institutet, Stockholm SE-171 77, Sweden
| | - Mattias Björnmalm
- Department of Materials, Imperial College London, London SW7 2AZ, UK; Department of Bioengineering, Imperial College London, London SW7 2AZ, UK; Institute of Biomedical Engineering, Imperial College London, London SW7 2AZ, UK
| | - Molly M Stevens
- Department of Materials, Imperial College London, London SW7 2AZ, UK; Department of Bioengineering, Imperial College London, London SW7 2AZ, UK; Institute of Biomedical Engineering, Imperial College London, London SW7 2AZ, UK; Department of Medical Biochemistry and Biophysics, Karolinska Institutet, Stockholm SE-171 77, Sweden.
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19
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Affiliation(s)
- Hanna M. G. Barriga
- Department of Medical Biochemistry and BiophysicsKarolinska Institute Stockholm Schweden
| | - Margaret N. Holme
- Department of Medical Biochemistry and BiophysicsKarolinska Institute Stockholm Schweden
| | - Molly M. Stevens
- Department of Medical Biochemistry and BiophysicsKarolinska Institute Stockholm Schweden
- Departments of Materials and Bioengineering and Institute of Biomedical EngineeringImperial College London London Großbritannien
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20
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Abstract
In the past decade, extracellular vesicles (EVs) have emerged as a key cell-free strategy for the treatment of a range of pathologies, including cancer, myocardial infarction, and inflammatory diseases. Indeed, the field is rapidly transitioning from promising in vitro reports toward in vivo animal models and early clinical studies. These investigations exploit the high physicochemical stability and biocompatibility of EVs as well as their innate capacity to communicate with cells via signal transduction and membrane fusion. This review focuses on methods in which EVs can be chemically or biologically modified to broaden, alter, or enhance their therapeutic capability. We examine two broad strategies, which have been used to introduce a wide range of nanoparticles, reporter systems, targeting peptides, pharmaceutics, and functional RNA molecules. First, we explore how EVs can be modified by manipulating their parent cells, either through genetic or metabolic engineering or by introducing exogenous material that is subsequently incorporated into secreted EVs. Second, we consider how EVs can be directly functionalized using strategies such as hydrophobic insertion, covalent surface chemistry, and membrane permeabilization. We discuss the historical context of each specific technology, present prominent examples, and evaluate the complexities, potential pitfalls, and opportunities presented by different re-engineering strategies.
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Affiliation(s)
- James PK Armstrong
- Department of Materials, Department of Bioengineering, and Institute for Biomedical Engineering, Imperial College, London, U.K. SW7 2AZ
| | - Margaret N Holme
- Department of Materials, Department of Bioengineering, and Institute for Biomedical Engineering, Imperial College, London, U.K. SW7 2AZ
| | - Molly M Stevens
- Department of Materials, Department of Bioengineering, and Institute for Biomedical Engineering, Imperial College, London, U.K. SW7 2AZ
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21
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Holme MN, Schulz G, Deyhle H, Weitkamp T, Beckmann F, Lobrinus JA, Rikhtegar F, Kurtcuoglu V, Zanette I, Saxer T, Müller B. Complementary X-ray tomography techniques for histology-validated 3D imaging of soft and hard tissues using plaque-containing blood vessels as examples. Nat Protoc 2014; 9:1401-15. [PMID: 24853926 DOI: 10.1038/nprot.2014.091] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
A key problem in X-ray computed tomography is choosing photon energies for postmortem specimens containing both soft and hard tissues. Increasing X-ray energy reduces image artifacts from highly absorbing hard tissues including plaque, but it simultaneously decreases contrast in soft tissues including the endothelium. Therefore, identifying the lumen within plaque-containing vessels is challenging. Destructive histology, the gold standard for tissue evaluation, reaches submicron resolution in two dimensions, whereas slice thickness limits spatial resolution in the third. We present a protocol to systematically analyze heterogeneous tissues containing weakly and highly absorbing components in the original wet state, postmortem. Taking the example of atherosclerotic human coronary arteries, the successively acquired 3D data of benchtop and synchrotron radiation-based tomography are validated by histology. The entire protocol requires ∼20 working days, enables differentiation between plaque, muscle and fat tissues without using contrast agents and permits blood flow simulations in vessels with plaque-induced constrictions.
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Affiliation(s)
- Margaret N Holme
- Biomaterials Science Center (BMC), University of Basel, University Hospital Basel, Basel, Switzerland
| | - Georg Schulz
- Biomaterials Science Center (BMC), University of Basel, University Hospital Basel, Basel, Switzerland
| | - Hans Deyhle
- Biomaterials Science Center (BMC), University of Basel, University Hospital Basel, Basel, Switzerland
| | | | - Felix Beckmann
- Institute of Materials Research, Helmholtz-Zentrum Geesthacht, Geesthacht, Germany
| | | | - Farhad Rikhtegar
- Laboratory of Thermodynamics in Emerging Technologies, ETH Zurich, Zurich, Switzerland
| | - Vartan Kurtcuoglu
- The Interface Group, Institute of Physiology, University of Zurich, Zurich, Switzerland
| | - Irene Zanette
- 1] European Synchrotron Radiation Facility, Grenoble, France. [2] Physik-Department, Technische Universität München, Garching, Germany
| | - Till Saxer
- University Hospitals Geneva, Geneva, Switzerland
| | - Bert Müller
- Biomaterials Science Center (BMC), University of Basel, University Hospital Basel, Basel, Switzerland
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22
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Affiliation(s)
- Margaret N. Holme
- Bio-materials Science Center (BMC), University of Basel, c/o Universitätsspital Basel, CH-4031 Basel, Switzerland; University Hospitals of Geneva, Cardiology Division, Department of Medicine, Rue Gabrielle-Perret-Gentil 4, CH-1211 Geneva, Switzerland; Departement für Chemie, Universität Freiburg, Chemin du Musée 9, CH-1700 Freiburg, Switzerland
| | - Bert Müller
- Bio-materials Science Center (BMC), University of Basel, c/o Universitätsspital Basel, CH-4031 Basel, Switzerland.
| | - Till Saxer
- University Hospitals of Geneva, Cardiology Division, Department of Medicine, Rue Gabrielle-Perret-Gentil 4, CH-1211 Geneva, Switzerland.
| | - Andreas Zumbuehl
- Departement für Chemie, Universität Freiburg, Chemin du Musée 9, CH-1700 Freiburg, Switzerland.
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23
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Holme MN, Fedotenko IA, Abegg D, Althaus J, Babel L, Favarger F, Reiter R, Tanasescu R, Zaffalon PL, Ziegler A, Müller B, Saxer T, Zumbuehl A. Shear-stress sensitive lenticular vesicles for targeted drug delivery. Nat Nanotechnol 2012; 7:536-43. [PMID: 22683843 DOI: 10.1038/nnano.2012.84] [Citation(s) in RCA: 193] [Impact Index Per Article: 16.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/06/2012] [Accepted: 04/30/2012] [Indexed: 05/20/2023]
Abstract
Atherosclerosis results in the narrowing of arterial blood vessels and this causes significant changes in the endogenous shear stress between healthy and constricted arteries. Nanocontainers that can release drugs locally with such rheological changes can be very useful. Here, we show that vesicles made from an artificial 1,3-diaminophospholipid are stable under static conditions but release their contents at elevated shear stress. These vesicles have a lenticular morphology, which potentially leads to instabilities along their equator. Using a model cardiovascular system based on polymer tubes and an external pump to represent shear stress in healthy and constricted vessels of the heart, we show that drugs preferentially release from the vesicles in constricted vessels that have high shear stress.
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Affiliation(s)
- Margaret N Holme
- University of Geneva, Department of Organic Chemistry, Quai Ernest-Ansermet 30, 1211 Geneva, Switzerland
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Affiliation(s)
| | | | | | | | - Andreas Zumbuehl
- University of Geneva, Department of Organic Chemistry, Quai Ernest-Ansermet 30, CH-1211 Geneva 4, Switzerland.
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