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Jeitler R, Glader C, König G, Kaplan J, Tetyczka C, Remmelgas J, Mußbacher M, Fröhlich E, Roblegg E. On the Structure, Stability, and Cell Uptake of Nanostructured Lipid Carriers for Drug Delivery. Mol Pharm 2024; 21:3674-3683. [PMID: 38838194 PMCID: PMC11220792 DOI: 10.1021/acs.molpharmaceut.4c00392] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2024] [Revised: 05/23/2024] [Accepted: 05/24/2024] [Indexed: 06/07/2024]
Abstract
The efficacy of nanostructured lipid carriers (NLC) for drug delivery strongly depends on their stability and cell uptake. Both properties are governed by their compositions and internal structure. To test the effect of the lipid composition of NLC on cell uptake and stability, three kinds of liquid lipids with different degrees of unsaturation are employed. After ensuring homogeneous size distributions, the thermodynamic characteristics, stability, and mixing properties of NLC are characterized. Then the rates and predominant pathways of cell uptake are determined. Although the same surfactant is used in all cases, different uptake rates are observed. This finding contradicts the view that the surface properties of NLC are dominated by the surfactant. Instead, the uptake rates are explained by the structure of the nanocarrier. Depending on the mixing properties, some liquid lipids remain inside the nanocarrier, while other liquid lipids are present on the surface. Nanocarriers with liquid lipids on the surface are taken up more readily by the cells. This shows that the engineering of efficient lipid nanocarriers requires a delicate balance of interactions between all components of the nanocarrier on the molecular level.
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Affiliation(s)
- Ramona Jeitler
- Institute
of Pharmaceutical Sciences, Pharmaceutical Technology and Biopharmacy, University of Graz, 8010 Graz, Austria
- Research
Center Pharmaceutical Engineering GmbH, 8010 Graz, Austria
| | - Christina Glader
- Institute
of Pharmaceutical Sciences, Pharmaceutical Technology and Biopharmacy, University of Graz, 8010 Graz, Austria
- Research
Center Pharmaceutical Engineering GmbH, 8010 Graz, Austria
| | - Gerhard König
- Research
Center Pharmaceutical Engineering GmbH, 8010 Graz, Austria
- Centre
for Enzyme Innovation, School of Biological Sciences, University of Portsmouth, Portsmouth PO1 2DY, United
Kingdom
| | - Jay Kaplan
- Research
Center Pharmaceutical Engineering GmbH, 8010 Graz, Austria
- Pritzker
School of Molecular Engineering, University
of Chicago, Chicago, Illinois 60637, United States
| | - Carolin Tetyczka
- Research
Center Pharmaceutical Engineering GmbH, 8010 Graz, Austria
| | - Johan Remmelgas
- Research
Center Pharmaceutical Engineering GmbH, 8010 Graz, Austria
| | - Marion Mußbacher
- Institute
of Pharmaceutical Sciences, Pharmacology and Toxicology, University of Graz, 8010 Graz, Austria
| | - Eleonore Fröhlich
- Center
for
Medical Research, Medical University of Graz, 8010 Graz, Austria
| | - Eva Roblegg
- Institute
of Pharmaceutical Sciences, Pharmaceutical Technology and Biopharmacy, University of Graz, 8010 Graz, Austria
- Research
Center Pharmaceutical Engineering GmbH, 8010 Graz, Austria
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2
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Pushpa Ragini S, Dyett BP, Sarkar S, Zhai J, White JF, Banerjee R, Drummond CJ, Conn CE. A systematic study of the effect of lipid architecture on cytotoxicity and cellular uptake of cationic cubosomes. J Colloid Interface Sci 2024; 663:82-93. [PMID: 38394820 DOI: 10.1016/j.jcis.2024.02.099] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2023] [Revised: 01/26/2024] [Accepted: 02/12/2024] [Indexed: 02/25/2024]
Abstract
HYPOTHESIS Lipid nanoparticles containing a cationic lipid are increasingly used in drug and gene delivery as they can display improved cellular uptake, enhanced loading for anionic cargo such as siRNA and mRNA or exhibit additional functionality such as cytotoxicity against cancer cells. This research study tests the hypothesis that the molecular structure of the cationic lipid influences the structure of the lipid nanoparticle, the cellular uptake, and the resultant cytotoxicity. EXPERIMENTS Three potentially cytotoxic cationic lipids, with systematic variations to the hydrophobic moiety, were designed and synthesised. All the three cationic lipids synthesised contain pharmacophores such as the bicyclic coumarin group (CCA12), the tricyclic etodolac moiety (ETD12), or the large pentacyclic triterpenoid "ursolic" group (U12) conjugated to a quaternary ammonium cationic lipid containing twin C12 chains. The cationic lipids were doped into monoolein cubosomes at a range of concentrations from 0.1 mol% to 5 mol% and the effect of the lipid molecular architecture on the cubosome phase behaviour was assessed using a combination of Small Angle X-Ray Scattering (SAXS), Dynamic Light Scattering (DLS), zeta-potential and cryo-Transmission Electron Microscopy (Cryo-TEM). The resulting cytotoxicity of these particles against a range of cancerous and non-cancerous cell-lines was assessed, along with their cellular uptake. FINDINGS The molecular architecture of the cationic lipid was linked to the internal nanostructure of the resulting cationic cubosomes with a transition to more curved cubic and hexagonal phases generally observed. Cubosomes formed from the cationic lipid CCA12 were found to have improved cellular uptake and significantly higher cytotoxicity than the cationic lipids ETD12 and U12 against the gastric cancer cell-line (AGS) at lipid concentrations ≥ 75 µg/mL. CCA12 cationic cubosomes also displayed reasonable cytotoxicity against the prostate cancer PC-3 cell-line at lipid concentrations ≥ 100 µg/mL. In contrast, 2.5 mol% ETD12 and 2.5 mol% U12 cubosomes were generally non-toxic against both cancerous and non-cancerous cell lines over the entire concentration range tested. The molecular architecture of the cationic lipid was found to influence the cubosome phase behaviour, the cellular uptake and the toxicity although further studies are necessary to determine the exact relationship between structure and cellular uptake across a range of cell lines.
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Affiliation(s)
- S Pushpa Ragini
- Department of Oils, lipids science and technology, CSIR-Indian Institute of Chemical Technology, Hyderabad 500 007, India; Academy of Scientific and Innovation Research (AcSIR), Ghaziabad, 201002, India; STEM College, RMIT University, Melbourne 3000, Victoria, Australia
| | - Brendan P Dyett
- STEM College, RMIT University, Melbourne 3000, Victoria, Australia
| | - Sampa Sarkar
- STEM College, RMIT University, Melbourne 3000, Victoria, Australia
| | - Jiali Zhai
- STEM College, RMIT University, Melbourne 3000, Victoria, Australia
| | - Jacinta F White
- CSIRO Manufacturing, Bayview Avenue, Clayton, VIC 3168, Australia
| | - Rajkumar Banerjee
- Department of Oils, lipids science and technology, CSIR-Indian Institute of Chemical Technology, Hyderabad 500 007, India; Academy of Scientific and Innovation Research (AcSIR), Ghaziabad, 201002, India
| | - Calum J Drummond
- STEM College, RMIT University, Melbourne 3000, Victoria, Australia.
| | - Charlotte E Conn
- STEM College, RMIT University, Melbourne 3000, Victoria, Australia.
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3
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Xie C, Wang B, Qi X, Bao L, Zhai J, Xu X, Zhang C, Yu H. Investigation of Anticancer Therapy Using pH-Sensitive Carbon Dots-Functionalized Doxorubicin in Cubosomes. ACS APPLIED BIO MATERIALS 2024; 7:1958-1967. [PMID: 38363649 DOI: 10.1021/acsabm.3c01306] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/18/2024]
Abstract
Cancer remains a highly lethal disease due to its elusive early detection, rapid spread, and significant side effects. Nanomedicine has emerged as a promising platform for drug delivery, diagnosis, and treatment monitoring. In particular, carbon dots (CDs), a type of fluorescent nanomaterial, offer excellent fluorescence properties and the ability to carry multiple drugs simultaneously through covalent bonding. In this work, CDs with carbonyl groups on the surface were prepared by aldol condensation and reacted with amine groups in the structure of doxorubicin (DOX) through Schiff base reaction to generate pH-responsive CDs-DOX. On the other hand, cubosomes with three-dimensional lattice structures formed by lipid bilayers have advantageous capabilities of encapsulating various hydrophilic, amphiphilic, and hydrophobic substances. The pH-responsive CDs-DOX are subsequently loaded into cubosomes to form an anticancer therapeutic nanosystem, CDs-DOX@cubosome. Leveraging the unique properties of CDs-DOX and cubosomes, our CDs-DOX@cubosome can enter tumor tissue through the enhanced permeation and retention effect first and conduct membrane fusion with tumor cells to intracellularly release CDs-DOX. Then, the imine bond in CDs-DOX breaks under acidic conditions within human cancer cell lines (HeLa and HepG-2 cells), releasing DOX and achieving enhanced treatment of tumors. Additionally, fluorescent CDs can synchronously achieve real-time in situ diagnosis of tumor tissue. We demonstrate that our CDs-DOX@cubosome works as an excellent drug delivery system with therapeutic efficiency enhancement to the tumor and reduced side effects.
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Affiliation(s)
- Caiyang Xie
- State Key Laboratory of Antiviral Drugs, School of Pharmacy, Henan University, Kaifeng 475004, China
- Zhengzhou University of Industrial Technology, Zhengzhou 451100, China
| | - Binke Wang
- State Key Laboratory of Antiviral Drugs, School of Pharmacy, Henan University, Kaifeng 475004, China
| | - Xinyu Qi
- State Key Laboratory of Antiviral Drugs, School of Pharmacy, Henan University, Kaifeng 475004, China
| | - Lei Bao
- School of Engineering, STEM College, RMIT University, Melbourne, Victoria 3000, Australia
| | - Jiali Zhai
- School of Science, STEM College, RMIT University, Melbourne, Victoria 3000, Australia
| | - Xu Xu
- State Key Laboratory of Antiviral Drugs, School of Pharmacy, Henan University, Kaifeng 475004, China
| | - Chunli Zhang
- State Key Laboratory of Antiviral Drugs, School of Pharmacy, Henan University, Kaifeng 475004, China
| | - Haitao Yu
- School of Science, STEM College, RMIT University, Melbourne, Victoria 3000, Australia
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4
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El Mohamad M, Han Q, Clulow AJ, Cao C, Safdar A, Stenzel M, Drummond CJ, Greaves TL, Zhai J. Regulating the structural polymorphism and protein corona composition of phytantriol-based lipid nanoparticles using choline ionic liquids. J Colloid Interface Sci 2024; 657:841-852. [PMID: 38091907 DOI: 10.1016/j.jcis.2023.12.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Revised: 11/29/2023] [Accepted: 12/01/2023] [Indexed: 01/02/2024]
Abstract
Lipid-based lyotropic liquid crystalline nanoparticles (LCNPs) face stability challenges in biological fluids during clinical translation. Ionic Liquids (ILs) have emerged as effective solvent additives for tuning the structure of LCNP's and enhancing their stability. We investigated the effect of a library of 21 choline-based biocompatible ILs with 9 amino acid anions as well as 10 other organic/inorganic anions during the preparation of phytantriol (PHY)-based LCNPs, followed by incubation in human serum and serum proteins. Small angle X-ray scattering (SAXS) results show that the phase behaviour of the LCNPs depends on the IL concentration and anion structure. Incubation with human serum led to a phase transition from the inverse bicontinuous cubic (Q2) to the inverse hexagonal (H2) mesophase, influenced by the specific IL present. Liquid chromatography-mass spectrometry (LC-MS) and proteomics analysis of selected samples, including PHY control and those with choline glutamate, choline hexanoate, and choline geranate, identified abundant proteins in the protein corona, including albumin, apolipoproteins, and serotransferrin. The composition of the protein corona varied among samples, shedding light on the intricate interplay between ILs, internal structure and surface chemistry of LCNPs, and biological fluids.
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Affiliation(s)
- Mohamad El Mohamad
- School of Science, STEM College, RMIT University, 124 La Trobe Street, Melbourne, VIC 3000, Australia
| | - Qi Han
- School of Science, STEM College, RMIT University, 124 La Trobe Street, Melbourne, VIC 3000, Australia
| | - Andrew J Clulow
- Australian Synchrotron, ANSTO, 800 Blackburn Road, Clayton, VIC 3168, Australia
| | - Cheng Cao
- Centre for Advanced Macromolecular Design, School of Chemistry, University of New South Wales, Sydney, NSW 2052, Australia
| | - Aneeqa Safdar
- Centre for Advanced Macromolecular Design, School of Chemistry, University of New South Wales, Sydney, NSW 2052, Australia
| | - Martina Stenzel
- Centre for Advanced Macromolecular Design, School of Chemistry, University of New South Wales, Sydney, NSW 2052, Australia
| | - Calum J Drummond
- School of Science, STEM College, RMIT University, 124 La Trobe Street, Melbourne, VIC 3000, Australia.
| | - Tamar L Greaves
- School of Science, STEM College, RMIT University, 124 La Trobe Street, Melbourne, VIC 3000, Australia.
| | - Jiali Zhai
- School of Science, STEM College, RMIT University, 124 La Trobe Street, Melbourne, VIC 3000, Australia.
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5
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Yap SL, Yu H, Li S, Drummond CJ, Conn CE, Tran N. Cell interactions with lipid nanoparticles possessing different internal nanostructures: Liposomes, bicontinuous cubosomes, hexosomes, and discontinuous micellar cubosomes. J Colloid Interface Sci 2024; 656:409-423. [PMID: 38000253 DOI: 10.1016/j.jcis.2023.11.059] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2023] [Revised: 10/30/2023] [Accepted: 11/09/2023] [Indexed: 11/26/2023]
Abstract
HYPOTHESIS Lyotropic liquid crystalline nanoparticles (LLCNPs) with complex internal nanostructures hold promise for drug delivery. Cubosomes, in particular, have garnered interest for their ability to fuse with cell membranes, potentially bypassing endosomal escape challenges and improving cellular uptake. The mesostructure of nanoparticles plays a crucial role in cellular interactions and uptake. Therefore, we hypothesise that the specific internal mesophase of the LLCNPs will affect their cellular interactions and uptake efficiencies, with cubosomes exhibiting superior cellular uptake compared to other LLCNPs. EXPERIMENTS LLCNPs with various mesophases, including liposomes, cubosomes, hexosomes, and micellar cubosomes, were formulated and characterised. Their physicochemical properties and cytotoxicity were assessed. Chinese Hamster Ovarian (CHO) cells were treated with fluorescently labelled LLCNPs, and their interactions were monitored and quantified through confocal microscopy and flow cytometry. FINDINGS The non-lamellar LLCNPs showed significantly higher cellular interactions compared to liposomes, with cubosomes exhibiting the highest level. However, there was no significant difference in relative cell uptake between cubosomes, hexosomes, and micellar cubosomes. Cell uptake experiments at 4 °C revealed the presence of an energy-independent uptake mechanism. This study provides the first comparative analysis of cellular interactions and uptake efficiencies among LLCNPs with varying mesophases, while maintaining similar size, composition, and surface charge.
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Affiliation(s)
- Sue Lyn Yap
- School of Science, STEM College, RMIT University, Melbourne, VIC 3000, Australia
| | - Haitao Yu
- School of Science, STEM College, RMIT University, Melbourne, VIC 3000, Australia
| | - Shiyao Li
- Department of Chemical Engineering, The University of Melbourne, Parkville, Victoria 3010, Australia
| | - Calum J Drummond
- School of Science, STEM College, RMIT University, Melbourne, VIC 3000, Australia.
| | - Charlotte E Conn
- School of Science, STEM College, RMIT University, Melbourne, VIC 3000, Australia.
| | - Nhiem Tran
- School of Science, STEM College, RMIT University, Melbourne, VIC 3000, Australia.
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6
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Pattipeiluhu R, Zeng Y, Hendrix MMRM, Voets IK, Kros A, Sharp TH. Liquid crystalline inverted lipid phases encapsulating siRNA enhance lipid nanoparticle mediated transfection. Nat Commun 2024; 15:1303. [PMID: 38347001 PMCID: PMC10861598 DOI: 10.1038/s41467-024-45666-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2021] [Accepted: 01/31/2024] [Indexed: 02/15/2024] Open
Abstract
Efficient cytosolic delivery of RNA molecules remains a formidable barrier for RNA therapeutic strategies. Lipid nanoparticles (LNPs) serve as state-of-the-art carriers that can deliver RNA molecules intracellularly, as exemplified by the recent implementation of several vaccines against SARS-CoV-2. Using a bottom-up rational design approach, we assemble LNPs that contain programmable lipid phases encapsulating small interfering RNA (siRNA). A combination of cryogenic transmission electron microscopy, cryogenic electron tomography and small-angle X-ray scattering reveals that we can form inverse hexagonal structures, which are present in a liquid crystalline nature within the LNP core. Comparison with lamellar LNPs reveals that the presence of inverse hexagonal phases enhances the intracellular silencing efficiency over lamellar structures. We then demonstrate that lamellar LNPs exhibit an in situ transition from a lamellar to inverse hexagonal phase upon interaction with anionic membranes, whereas LNPs containing pre-programmed liquid crystalline hexagonal phases bypass this transition for a more efficient one-step delivery mechanism, explaining the increased silencing effect. This rational design of LNPs with defined lipid structures aids in the understanding of the nano-bio interface and adds substantial value for LNP design, optimization and use.
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Affiliation(s)
- Roy Pattipeiluhu
- Supramolecular and Biomaterials Chemistry, Leiden Institute of Chemistry, Leiden University, Einsteinweg 55, 2333 CC, Leiden, The Netherlands
- Department of Cell and Chemical Biology, Leiden University Medical Center, Einthovenweg 20, 2333 ZC, Leiden, The Netherlands
- BioNTech SE, An der Goldgrube 12, 55131, Mainz, Germany
| | - Ye Zeng
- Supramolecular and Biomaterials Chemistry, Leiden Institute of Chemistry, Leiden University, Einsteinweg 55, 2333 CC, Leiden, The Netherlands
| | - Marco M R M Hendrix
- Self-Organizing Soft Matter, Department of Chemical Engineering and Chemistry & Institute of Complex Molecular Systems, Eindhoven University of Technology, P.O. Box 513, 5600 MB, Eindhoven, The Netherlands
| | - Ilja K Voets
- Self-Organizing Soft Matter, Department of Chemical Engineering and Chemistry & Institute of Complex Molecular Systems, Eindhoven University of Technology, P.O. Box 513, 5600 MB, Eindhoven, The Netherlands
| | - Alexander Kros
- Supramolecular and Biomaterials Chemistry, Leiden Institute of Chemistry, Leiden University, Einsteinweg 55, 2333 CC, Leiden, The Netherlands.
| | - Thomas H Sharp
- Department of Cell and Chemical Biology, Leiden University Medical Center, Einthovenweg 20, 2333 ZC, Leiden, The Netherlands.
- School of Biochemistry, University of Bristol, Bristol, BS8 1TD, United Kingdom.
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7
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Penman R, Kariuki R, Shaw ZL, Dekiwadia C, Christofferson AJ, Bryant G, Vongsvivut J, Bryant SJ, Elbourne A. Gold nanoparticle adsorption alters the cell stiffness and cell wall bio-chemical landscape of Candida albicans fungal cells. J Colloid Interface Sci 2024; 654:390-404. [PMID: 37852025 DOI: 10.1016/j.jcis.2023.10.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Revised: 09/08/2023] [Accepted: 10/04/2023] [Indexed: 10/20/2023]
Abstract
HYPOTHESIS Nanomaterials have been extensively investigated for a wide range of biomedical applications, including as antimicrobial agents, drug delivery vehicles, and diagnostic devices. The commonality between these biomedical applications is the necessity for the nanoparticle to interact with or pass through the cellular wall and membrane. Cell-nanomaterial interactions/uptake can occur in various ways, including adhering to the cell wall, forming aggregates on the surface, becoming absorbed within the cell wall itself, or transversing into the cell cytoplasm. These interactions are common to mammalian cells, bacteria, and yeast cells. This variety of interactions can cause changes to the integrity of the cell wall and the cell overall, but the precise mechanisms underpinning such interactions remain poorly understood. Here, we investigate the interaction between commonly investigated gold nanoparticles (AuNPs) and the cell wall/membrane of a model fungal cell to explore the general effects of interaction and uptake. EXPERIMENTS The interactions between 100 nm citrate-capped AuNPs and the cell wall of Candida albicans fungal cells were studied using a range of advanced microscopy techniques, including atomic force microscopy, confocal laser scanning microscopy, scanning electron microscopy, transmission electron microscopy, and synchrotron-FTIR micro-spectroscopy. FINDINGS In most cases, particles adhered on the cell surface, although instances of particles being up-taken into the cell cytoplasm and localised within the cell wall and membrane were also observed. There was a measurable increase in the stiffness of the fungal cell after AuNPs were introduced. Analysis of the synchrotron-FTIR data showed significant changes in spectral features associated with phospholipids and proteins after exposure to AuNPs.
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Affiliation(s)
- Rowan Penman
- School of Science, STEM College, RMIT University, Melbourne, VIC 3001, Australia
| | - Rashad Kariuki
- School of Science, STEM College, RMIT University, Melbourne, VIC 3001, Australia
| | - Z L Shaw
- School of Engineering, STEM College, RMIT University, Melbourne, VIC 3001, Australia
| | - Chaitali Dekiwadia
- RMIT Microscopy and Microanalysis Facility (RMMF), RMIT University, Melbourne, Victoria 3001, Australia
| | | | - Gary Bryant
- School of Science, STEM College, RMIT University, Melbourne, VIC 3001, Australia
| | - Jitraporn Vongsvivut
- Infrared Microspectroscopy (IRM) Beamline, ANSTO - Australian Synchrotron, Clayton, VIC 3168, Australia
| | - Saffron J Bryant
- School of Science, STEM College, RMIT University, Melbourne, VIC 3001, Australia.
| | - Aaron Elbourne
- School of Science, STEM College, RMIT University, Melbourne, VIC 3001, Australia.
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8
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Scheeder A, Brockhoff M, Ward EN, Kaminski Schierle GS, Mela I, Kaminski CF. Molecular Mechanisms of Cationic Fusogenic Liposome Interactions with Bacterial Envelopes. J Am Chem Soc 2023; 145:28240-28250. [PMID: 38085801 PMCID: PMC10755748 DOI: 10.1021/jacs.3c11463] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Revised: 11/22/2023] [Accepted: 11/27/2023] [Indexed: 12/28/2023]
Abstract
Although fusogenic liposomes offer a promising approach for the delivery of antibiotic payloads across the cell envelope of Gram-negative bacteria, there is still a limited understanding of the individual nanocarrier interactions with the bacterial target. Using super-resolution microscopy, we characterize the interaction dynamics of positively charged fusogenic liposomes with Gram-negative (Escherichia coli) and Gram-positive (Bacillus subtilis) bacteria. The liposomes merge with the outer membrane (OM) of Gram-negative bacteria, while attachment or lipid internalization is observed in Gram-positive cells. Employing total internal reflection fluorescence microscopy, we demonstrated liposome fusion with model supported lipid bilayers. For whole E. coli cells, however, we observed heterogeneous membrane integrations, primarily involving liposome attachment and hemifusion events. With increasing lipopolysaccharide length, the likelihood of full-fusion events was reduced. The integration of artificial lipids into the OM of Gram-negative cells led to membrane destabilization, resulting in decreased bacterial vitality, membrane detachment, and improved codelivery of vancomycin─an effective antibiotic against Gram-positive cells. These findings provide significant insights into the interactions of individual nanocarriers with bacterial envelopes at the single-cell level, uncovering effects that would be missed in bulk measurements. This highlights the importance of conducting single-particle and single-cell investigations to assess the performance of next-generation drug delivery platforms.
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Affiliation(s)
- Anna Scheeder
- Department
of Chemical Engineering and Biotechnology, University of Cambridge, Philippa Fawcett Drive, Cambridge CB3 0AS, U.K.
| | - Marius Brockhoff
- Department
of Chemical Engineering and Biotechnology, University of Cambridge, Philippa Fawcett Drive, Cambridge CB3 0AS, U.K.
| | - Edward N. Ward
- Department
of Chemical Engineering and Biotechnology, University of Cambridge, Philippa Fawcett Drive, Cambridge CB3 0AS, U.K.
| | - Gabriele S. Kaminski Schierle
- Department
of Chemical Engineering and Biotechnology, University of Cambridge, Philippa Fawcett Drive, Cambridge CB3 0AS, U.K.
| | - Ioanna Mela
- Department
of Pharmacology, University of Cambridge, Tennis Court Road, Cambridge CB2 1PD, U.K.
| | - Clemens F. Kaminski
- Department
of Chemical Engineering and Biotechnology, University of Cambridge, Philippa Fawcett Drive, Cambridge CB3 0AS, U.K.
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9
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Yaghmur A, Moghimi SM. Intrinsic and Dynamic Heterogeneity of Nonlamellar Lyotropic Liquid Crystalline Nanodispersions. ACS NANO 2023; 17:22183-22195. [PMID: 37943319 DOI: 10.1021/acsnano.3c09231] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/10/2023]
Abstract
Nonlamellar lyotropic liquid crystalline (LLC) nanoparticles are a family of versatile nano-self-assemblies, which are finding increasing applications in drug solubilization and targeted drug delivery. LLC nanodispersions are heterogeneous with discrete nanoparticle subpopulations of distinct internal architecture and morphology, frequently coexisting with micelles and/or vesicles. Diversity in the internal architectural repertoire of LLC nanodispersions grants versatility in drug solubilization, encapsulation, and release rate. However, drug incorporation contributes to the heterogeneity of LLC nanodispersions, and on exposure to biological media, LLC nanodispersions often undergo nanostructural and morphological transformations. From a pharmaceutical perspective, coexistence of multiple types of nanoparticles with diverse structural attributes, together with media-driven transformations in colloidal characteristics, brings challenges in dissecting biological and therapeutic performance of LLC nanodispersions in a spatiotemporal manner. Here, we outline innate and acquired heterogeneity of LLC nanodispersions and discuss technological developments and alternative approaches needed to improve homogeneity of LLC formulations for drug delivery applications.
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Affiliation(s)
- Anan Yaghmur
- Department of Pharmacy, Faculty of Health and Medical Sciences, University of Copenhagen, 2100 Copenhagen Ø, Denmark
| | - S Moein Moghimi
- School of Pharmacy, Newcastle University, Newcastle upon Tyne NE1 7RU, U.K
- Translational and Clinical Research Institute, Faculty of Health and Medical Sciences, Newcastle University, Newcastle upon Tyne NE2 4HH, U.K
- Colorado Center for Nanomedicine and Nanosafety, University of Colorado Anschutz Medical Center, 12850 East Montview Boulevard, Aurora, Colorado 80045, United States
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10
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Wu Y, Angelov B, Deng Y, Fujino T, Hossain MS, Drechsler M, Angelova A. Sustained CREB phosphorylation by lipid-peptide liquid crystalline nanoassemblies. Commun Chem 2023; 6:241. [PMID: 37932487 PMCID: PMC10628290 DOI: 10.1038/s42004-023-01043-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2023] [Accepted: 10/25/2023] [Indexed: 11/08/2023] Open
Abstract
Cyclic-AMP-response element-binding protein (CREB) is a leucine zipper class transcription factor that is activated through phosphorylation. Ample CREB phosphorylation is required for neurotrophin expression, which is of key importance for preventing and regenerating neurological disorders, including the sequelae of long COVID syndrome. Here we created lipid-peptide nanoassemblies with different liquid crystalline structural organizations (cubosomes, hexosomes, and vesicles) as innovative nanomedicine delivery systems of bioactive PUFA-plasmalogens (vinyl ether phospholipids with polyunsaturated fatty acid chains) and a neurotrophic pituitary adenylate cyclase-activating polypeptide (PACAP). Considering that plasmalogen deficiency is a potentially causative factor for neurodegeneration, we examined the impact of nanoassemblies type and incubation time in an in vitro Parkinson's disease (PD) model as critical parameters for the induction of CREB phosphorylation. The determined kinetic changes in CREB, AKT, and ERK-protein phosphorylation reveal that non-lamellar PUFA-plasmalogen-loaded liquid crystalline lipid nanoparticles significantly prolong CREB activation in the neurodegeneration model, an effect unattainable with free drugs, and this effect can be further enhanced by the cell-penetrating peptide PACAP. Understanding the sustained CREB activation response to neurotrophic nanoassemblies might lead to more efficient use of nanomedicines in neuroregeneration.
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Affiliation(s)
- Yu Wu
- Université Paris-Saclay, CNRS, Institut Galien Paris-Saclay, F-91400, Orsay, France
| | - Borislav Angelov
- Extreme Light Infrastructure ERIC, CZ-25241, Dolni Brezany, Czech Republic.
| | - Yuru Deng
- Wenzhou Institute, University of Chinese Academy of Sciences, No.1, Jinlian Road, Longwan District, Wenzhou, Zhejiang, 325001, China
| | - Takehiko Fujino
- Institute of Rheological Functions of Food, 2241-1 Kubara, Hisayama-cho, Kasuya-gun, Fukuoka, 811-2501, Japan
| | - Md Shamim Hossain
- Institute of Rheological Functions of Food, 2241-1 Kubara, Hisayama-cho, Kasuya-gun, Fukuoka, 811-2501, Japan
| | - Markus Drechsler
- Keylab "Electron and Optical Microscopy", Bavarian Polymerinstitute (BPI), University of Bayreuth, Universitätsstrasse 30, D-95440, Bayreuth, Germany
| | - Angelina Angelova
- Université Paris-Saclay, CNRS, Institut Galien Paris-Saclay, F-91400, Orsay, France.
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11
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Yu H, Iscaro J, Dyett B, Zhang Y, Seibt S, Martinez N, White J, Drummond CJ, Bozinovski S, Zhai J. Inverse Cubic and Hexagonal Mesophase Evolution within Ionizable Lipid Nanoparticles Correlates with mRNA Transfection in Macrophages. J Am Chem Soc 2023. [PMID: 37870621 DOI: 10.1021/jacs.3c08729] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2023]
Abstract
mRNA lipid nanoparticle (LNP) technology presents enormous opportunities to prevent and treat various diseases. Here, we developed a novel series of LNPs containing ionizable amino-lipids showing a remarkable array of tunable and pH-sensitive lyotropic liquid crystalline mesophases including the inverse bicontinuous cubic and hexagonal phases characterized by high-throughput synchrotron radiation X-ray scattering. Furthermore, with an interest in developing mRNA therapeutics for lung macrophage targeting, we discovered that there is a strong correlation between the mesophase transition of the LNPs during acidification and the macrophage association/transfection efficiency of mRNAs. The slight molecular structural differences between the SM-102 and ALC-0315 ionizable lipids are linked to the LNP's ability to transform their internal structures from an amorphous state to the inverse micellar, hexagonal, and finally cubic structures during endosomal maturation. SM-102 LNPs showed exceptionally improved transfection efficiency due to their ability to form a cubic structure at a lower pH than the ALC-0315 analogues, which remained within the hexagonal structure, previously attributed to promoting endosomal escape of the ionizable LNPs. Overall, the new knowledge draws our attention to the important role of mesophase transition in endosomal escape, and the novel LNP libraries reported herein have broad prospects for advancing mRNA therapeutics.
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Affiliation(s)
- Haitao Yu
- School of Science, STEM College, RMIT University, Melbourne, Victoria 3000, Australia
| | - Joshua Iscaro
- Centre for Respiratory Science & Health, School of Health & Biomedical Sciences, RMIT University, Melbourne, Victoria 3000, Australia
| | - Brendan Dyett
- School of Science, STEM College, RMIT University, Melbourne, Victoria 3000, Australia
| | - Yiran Zhang
- School of Science, STEM College, RMIT University, Melbourne, Victoria 3000, Australia
| | - Susanne Seibt
- SAXS/WAXS Beamline, Australian Synchrotron, ANSTO, 800 Blackburn Rd, Clayton, Victoria 3168, Australia
| | - Natalia Martinez
- School of Science, STEM College, RMIT University, Melbourne, Victoria 3000, Australia
| | - Jacinta White
- CSIRO Manufacturing, Bayview Avenue,Clayton, Victoria 3169, Australia
| | - Calum J Drummond
- School of Science, STEM College, RMIT University, Melbourne, Victoria 3000, Australia
| | - Steven Bozinovski
- Centre for Respiratory Science & Health, School of Health & Biomedical Sciences, RMIT University, Melbourne, Victoria 3000, Australia
| | - Jiali Zhai
- School of Science, STEM College, RMIT University, Melbourne, Victoria 3000, Australia
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12
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Flak D, Zalewski T, Fiedorowicz K, Przysiecka Ł, Jarek M, Klimaszyk A, Kempka M, Zimna A, Rozwadowska N, Avaro J, Liebi M, Nowaczyk G. Hybrids of manganese oxide and lipid liquid crystalline nanoparticles (LLCNPs@MnO) as potential magnetic resonance imaging (MRI) contrast agents. J Mater Chem B 2023; 11:8732-8753. [PMID: 37655519 DOI: 10.1039/d3tb01110k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
Abstract
Due to the health risks associated with the use of Gd-chelates and the promising effects of using nanoparticles as T1 contrast agents (CAs) for MRI, Mn-based nanoparticles are considered a highly competitive alternative. The use of hybrid constructs with paramagnetic functionality of Mn-based nanoparticles is an effective approach, in particular, the use of biocompatible lipid liquid crystalline nanoparticles (LLCNPs) as a carrier of MnO nanoparticles. LLCNPs possess a unique internal structure ensuring a payload of different polarity MnO nanoparticles. In view of MRI application, the surface properties including the polarity of MnO are crucial factors determining their relaxation rate and thus the MRI efficiency. Two novel hybrid constructs consisting of LLCNPs loaded with hydrophobic MnO-oleate and hydrophilic MnO-DMSA NPs were prepared. These nanosystems were studied in terms of their physico-chemical properties, positive T1 contrast enhancement properties (in vitro and in vivo) and biological safety. LLCNPs@MnO-oleate and LLCNPs@MnO-DMSA hybrids exhibited a heterogeneous phase composition, however with differences in the inner periodic arrangement and structural parameters, as well as in the preferable localization of MnO NPs within the LLCNPs. Also, these hybrids differed in terms of particle size-related parameters and colloidal stability, which was found to be strongly dependent on the addition of differently functionalized MnO NPs. Embedding both types of MnO NPs into LLCNPs resulted in high relaxivity parameters, in comparison to bare MnO-DMSA NPs and also commercially developed CAs (e.g. Dotarem and Teslascan). Further biosafety studies revealed that cell internalization pathways were dependent on the prepared hybrid type, while viability, effects on the mitochondria membrane potential and cytoskeletal networks were rather related to the susceptibility of the particular cell line. The high relaxation rates achieved with the developed hybrid LLCNPs@MnO enable them to be possibly used as novel and biologically safe MRI T1-enhancing CAs in in vivo imaging.
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Affiliation(s)
- Dorota Flak
- NanoBioMedical Centre, Adam Mickiewicz University Poznań, Wszechnicy Piastowskiej 3, 61-614 Poznań, Poland.
| | - Tomasz Zalewski
- NanoBioMedical Centre, Adam Mickiewicz University Poznań, Wszechnicy Piastowskiej 3, 61-614 Poznań, Poland.
| | - Katarzyna Fiedorowicz
- NanoBioMedical Centre, Adam Mickiewicz University Poznań, Wszechnicy Piastowskiej 3, 61-614 Poznań, Poland.
| | - Łucja Przysiecka
- NanoBioMedical Centre, Adam Mickiewicz University Poznań, Wszechnicy Piastowskiej 3, 61-614 Poznań, Poland.
| | - Marcin Jarek
- NanoBioMedical Centre, Adam Mickiewicz University Poznań, Wszechnicy Piastowskiej 3, 61-614 Poznań, Poland.
| | - Adam Klimaszyk
- NanoBioMedical Centre, Adam Mickiewicz University Poznań, Wszechnicy Piastowskiej 3, 61-614 Poznań, Poland.
| | - Marek Kempka
- NanoBioMedical Centre, Adam Mickiewicz University Poznań, Wszechnicy Piastowskiej 3, 61-614 Poznań, Poland.
- Department of Biomedical Physics, Faculty of Physics, Adam Mickiewicz University Poznań, Uniwersytetu Poznańskiego 2, 61-614 Poznań, Poland
| | - Agnieszka Zimna
- Institute of Human Genetics Polish Academy of Sciences, Strzeszyńska 32, 60-479 Poznań, Poland
| | - Natalia Rozwadowska
- Institute of Human Genetics Polish Academy of Sciences, Strzeszyńska 32, 60-479 Poznań, Poland
| | - Jonathan Avaro
- Empa - Swiss Federal Laboratories for Materials Science and Technology, Center for X-ray Analytics and Biomimetic Membranes and Textiles, Lerchenfeldstrasse 5, 9014 St. Gallen, Switzerland
| | - Marianne Liebi
- Empa - Swiss Federal Laboratories for Materials Science and Technology, Center for X-ray Analytics, Lerchenfeldstrasse 5, 9014 St. Gallen, Switzerland
| | - Grzegorz Nowaczyk
- NanoBioMedical Centre, Adam Mickiewicz University Poznań, Wszechnicy Piastowskiej 3, 61-614 Poznań, Poland.
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13
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Brasnett C, Squires AM, Smith AJ, Seddon AM. Lipid doping of the sponge (L 3) mesophase. SOFT MATTER 2023; 19:6569-6577. [PMID: 37603381 DOI: 10.1039/d3sm00578j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/22/2023]
Abstract
The polymorphism of lipid aggregates has long attracted detailed study due to the myriad factors that determine the final mesophase observed. This study is driven by the need to understand mesophase behaviour for a number of applications, such as drug delivery and membrane protein crystallography. In the case of the latter, the role of the so-called 'sponge' (L3) mesophase has been often noted, but not extensively studied by itself. The L3 mesophase can be formed in monoolein/water systems on the addition of butanediol to water, which partitions the headgroup region of the membrane, and decreases its elastic moduli. Like cubic mesophases, it is bicontinuous, but unlike them, has no long-range translational symmetry. In our present study, we show that the formation of the L3 phase can delicately depend on the addition of dopant lipids to the mesophase. While electrostatically neutral molecules similar in shape to monoolein (DOPE, cholesterol) have little effect on the general mesophase behaviour, others (DOPC, DDM) significantly reduce the composition at which it can form. Additionally, we show that by combining cholesterol with the anionic lipid DOPG, it is possible to form the largest stable L3 mesophases observed to date, with characteristic lengths over 220 Å.
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Affiliation(s)
| | - Adam M Squires
- Department of Chemistry, University of Bath, Bath, BA2 7AY, UK
| | - Andrew J Smith
- Diamond House, Diamond Light Source Ltd, Harwell Science and Innovation Campus, Fermi Ave., Didcot, OX11 0DE, UK
| | - Annela M Seddon
- School of Physics, University of Bristol, Tyndall Avenue, Bristol, BS8 1FD, UK.
- Bristol Centre for Functional Nanomaterials, School of Physics, University of Bristol, Tyndall Avenue, Bristol, BS8 1FD, UK
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14
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Zaborowska M, Broniatowski M, Fontaine P, Bilewicz R, Matyszewska D. Statin Action Targets Lipid Rafts of Cell Membranes: GIXD/PM-IRRAS Investigation of Langmuir Monolayers. J Phys Chem B 2023; 127:7135-7147. [PMID: 37551973 PMCID: PMC10440791 DOI: 10.1021/acs.jpcb.3c02574] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2023] [Revised: 07/17/2023] [Indexed: 08/09/2023]
Abstract
Lipid rafts are condensed regions of cell membranes rich in cholesterol and sphingomyelin, which constitute the target for anticholesterolemic drugs - statins. In this work, we use for the first time a combined grazing-incidence X-ray diffraction (GIXD)/polarization modulation infrared reflection absorption spectroscopy (PM-IRRAS)/Brewster angle microscopy (BAM) approach to show the statin effect on model lipid rafts and its components assembled in Langmuir monolayers at the air-water interface. Two representatives of these drugs, fluvastatin (FLU) and cerivastatin (CER), of different hydrophobicity were chosen, while cholesterol (Chol) and sphingomyelin (SM), and their 1:1 mixture were selected to form condensed monolayers of lipid rafts. The effect of statins on the single components of lipid rafts indicated that both the hydrophobicity of the drugs and the organization of the layer determined the drug-lipid interaction. For cholesterol monolayers, only the most hydrophobic CER was effectively changing the film structure, while for the less organized sphingomyelin, the biggest effect was observed for FLU. This drug affected both the polar headgroup region as shown by PM-IRRAS results and the 2D crystalline structure of the SM monolayer as evidenced by GIXD. Measurements performed for Chol/SM 1:1 models proved also that the statin effect depends on the presence of Chol-SM complexes. In this case, the less hydrophobic FLU was not able to penetrate the binary layer at all, while exposure to the hydrophobic CER resulted in the phase separation and formation of ordered assemblies. The changes in the membrane properties were visualized by BAM images and GIXD patterns and confirmed by thermodynamic parameters of hysteresis in the Langmuir monolayer compression-decompression experiments.
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Affiliation(s)
| | - Marcin Broniatowski
- Faculty
of Chemistry, Jagiellonian University, Gronostajowa 2, 30387 Kraków, Poland
| | - Philippe Fontaine
- Synchrotron
SOLEIL, L’Orme des Merisiers, Départementale 128, 91190 Saint-Aubin, France
| | - Renata Bilewicz
- Faculty
of Chemistry, University of Warsaw, Pasteura 1, 02093 Warsaw, Poland
| | - Dorota Matyszewska
- Faculty
of Chemistry, Biological and Chemical Research Centre, University of Warsaw, Żwirki i Wigury 101, 02089 Warsaw, Poland
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15
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Pilkington CP, Contini C, Barritt JD, Simpson PA, Seddon JM, Elani Y. A microfluidic platform for the controlled synthesis of architecturally complex liquid crystalline nanoparticles. Sci Rep 2023; 13:12684. [PMID: 37542147 PMCID: PMC10403506 DOI: 10.1038/s41598-023-39205-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2023] [Accepted: 07/21/2023] [Indexed: 08/06/2023] Open
Abstract
Soft-matter nanoparticles are of great interest for their applications in biotechnology, therapeutic delivery, and in vivo imaging. Underpinning this is their biocompatibility, potential for selective targeting, attractive pharmacokinetic properties, and amenability to downstream functionalisation. Morphological diversity inherent to soft-matter particles can give rise to enhanced functionality. However, this diversity remains untapped in clinical and industrial settings, and only the simplest of particle architectures [spherical lipid vesicles and lipid/polymer nanoparticles (LNPs)] have been routinely exploited. This is partially due to a lack of appropriate methods for their synthesis. To address this, we have designed a scalable microfluidic hydrodynamic focusing (MHF) technology for the controllable, rapid, and continuous production of lyotropic liquid crystalline (LLC) nanoparticles (both cubosomes and hexosomes), colloidal dispersions of higher-order lipid assemblies with intricate internal structures of 3-D and 2-D symmetry. These particles have been proposed as the next generation of soft-matter nano-carriers, with unique fusogenic and physical properties. Crucially, unlike alternative approaches, our microfluidic method gives control over LLC size, a feature we go on to exploit in a fusogenic study with model cell membranes, where a dependency of fusion on particle diameter is evident. We believe our platform has the potential to serve as a tool for future studies involving non-lamellar soft nanoparticles, and anticipate it allowing for the rapid prototyping of LLC particles of diverse functionality, paving the way toward their eventual wide uptake at an industrial level.
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Affiliation(s)
- Colin P Pilkington
- Department of Chemistry, Molecular Science Research Hub, Imperial College London, 82 Wood Lane, London, W12 0BZ, UK.
- Department of Chemical Engineering, Imperial College London, Exhibition Road, London, SW7 2AZ, UK.
| | - Claudia Contini
- Department of Chemical Engineering, Imperial College London, Exhibition Road, London, SW7 2AZ, UK
| | - Joseph D Barritt
- Department of Life Sciences, Imperial College London, Exhibition Road, London, SW7 2AZ, UK
| | - Paul A Simpson
- Department of Life Sciences, Centre for Structural Biology, Imperial College London, Exhibition Road, London, SW7 2AZ, UK
| | - John M Seddon
- Department of Chemistry, Molecular Science Research Hub, Imperial College London, 82 Wood Lane, London, W12 0BZ, UK
| | - Yuval Elani
- Department of Chemical Engineering, Imperial College London, Exhibition Road, London, SW7 2AZ, UK.
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16
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Pushpa Ragini S, White J, Kirby N, Banerjee R, Reddy Bathula S, Drummond CJ, Conn CE. Novel bioactive cationic cubosomes enhance the cytotoxic effect of paclitaxel against a paclitaxel resistant prostate cancer cell-line. J Colloid Interface Sci 2023; 649:966-976. [PMID: 37392686 DOI: 10.1016/j.jcis.2023.06.122] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2023] [Revised: 06/05/2023] [Accepted: 06/17/2023] [Indexed: 07/03/2023]
Abstract
Hypothesis The study aimed to use molecular hybridization of a cationic lipid with a known pharmacophore to produce a bifunctional lipid having a cationic charge to enhance fusion with the cancer cell surface and biological activity via the pharmacophoric head group. Experiments The novel cationic lipid DMP12 [N-(2-(3-(3,4-dimethoxyphenyl) propanamido) ethyl)-N-dodecyl-N-methyldodecan-1-aminium iodide] was synthesised by conjugating 3-(3,4-dimethoxyphenyl) propanoic acid (or 3,4-dimethoxyhydrocinnamic acid) to twin 12 carbon chains bearing a quaternary ammonium group [N-(2-aminoethyl)-N-dodecyl-N-methyldodecan-1-aminium iodide]. The physicochemical and biological properties of DMP12 were investigated. Cubosome particles consisting of monoolein (MO) doped with DMP12 and paclitaxel were characterized using Small-angle X-ray Scattering (SAXS), Dynamic Light Scattering (DLS), and Cryo-Transmission Electron Microscopy (Cryo-TEM). Combination therapy using these cubosomes was assessed in vitro against the gastric (AGS) and prostate (DU-145 and PC-3) cancer cell lines using cytotoxicity assay. Findings Monoolein (MO) cubosomes doped with DMP12 were observed to be toxic against the AGS and DU-145 cell-lines at higher cubosome concentrations (≥100 µg/ml) but had limited activity against the PC-3 cell-line. However, combination therapy consisting of 5 mol% DMP12 and 0.5 mol% paclitaxel (PTX) significantly increased the cytotoxicity against the PC-3 cell-line which was resistant to either DMP12 or PTX individually. The results demonstrate that DMP12 has a prospective role as a bioactive excipient in cancer therapy.
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Affiliation(s)
- S Pushpa Ragini
- Department of Oils, lipids science and technology, CSIR-Indian Institute of Chemical Technology, Hyderabad 500 007, India; Academy of Scientific and Innovation Research (AcSIR), Ghaziabad, 201002, India; Department of Organic Synthesis and Process Chemistry, CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad-500007, India; School of Science, College of Science, Engineering and Health, RMIT University, Melbourne 3000, Victoria, Australia
| | - Jacinta White
- CSIRO Manufacturing, Bayview Avenue, Clayton, VIC 3168, Australia
| | - Nigel Kirby
- Australian Synchrotron, 800 Blackburn Rd, Clayton, VIC 3168, Australia
| | - Rajkumar Banerjee
- Department of Oils, lipids science and technology, CSIR-Indian Institute of Chemical Technology, Hyderabad 500 007, India; Academy of Scientific and Innovation Research (AcSIR), Ghaziabad, 201002, India
| | - Surendar Reddy Bathula
- Academy of Scientific and Innovation Research (AcSIR), Ghaziabad, 201002, India; Department of Organic Synthesis and Process Chemistry, CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad-500007, India
| | - Calum J Drummond
- School of Science, College of Science, Engineering and Health, RMIT University, Melbourne 3000, Victoria, Australia
| | - Charlotte E Conn
- School of Science, College of Science, Engineering and Health, RMIT University, Melbourne 3000, Victoria, Australia.
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17
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Sarkar S, Mishra A, Periasamy S, Dyett B, Dogra P, Ball AS, Yeo LY, White JF, Wang Z, Cristini V, Jagannath C, Khan A, Soni SK, Drummond CJ, Conn CE. Prospective Subunit Nanovaccine against Mycobacterium tuberculosis Infection─Cubosome Lipid Nanocarriers of Cord Factor, Trehalose 6,6' Dimycolate. ACS APPLIED MATERIALS & INTERFACES 2023. [PMID: 37262346 DOI: 10.1021/acsami.3c04063] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
An improved vaccine is urgently needed to replace the now more than 100-year-old Bacillus Calmette-Guérin (BCG) vaccine against tuberculosis (TB) disease, which represents a significant burden on global public health. Mycolic acid, or cord factor trehalose 6,6' dimycolate (TDM), a lipid component abundant in the cell wall of the pathogen Mycobacterium tuberculosis (MTB), has been shown to have strong immunostimulatory activity but remains underexplored due to its high toxicity and poor solubility. Herein, we employed a novel strategy to encapsulate TDM within a cubosome lipid nanocarrier as a potential subunit nanovaccine candidate against TB. This strategy not only increased the solubility and reduced the toxicity of TDM but also elicited a protective immune response to control MTB growth in macrophages. Both pre-treatment and concurrent treatment of the TDM encapsulated in lipid monoolein (MO) cubosomes (MO-TDM) (1 mol %) induced a strong proinflammatory cytokine response in MTB-infected macrophages, due to epigenetic changes at the promoters of tumor necrosis factor alpha (TNF-α) and interleukin 6 (IL-6) in comparison to the untreated control. Furthermore, treatment with MO-TDM (1 mol %) cubosomes significantly improved antigen processing and presentation capabilities of MTB-infected macrophages to CD4 T cells. The ability of MO-TDM (1 mol %) cubosomes to induce a robust innate and adaptive response in vitro was further supported by a mathematical modeling study predicting the vaccine efficacy in vivo. Overall, these results indicate a strong immunostimulatory effect of TDM when delivered through the lipid nanocarrier, suggesting its potential as a novel TB vaccine.
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Affiliation(s)
- Sampa Sarkar
- School of Science, STEM College, RMIT University, Melbourne 3001, Victoria, Australia
| | - Abhishek Mishra
- Department of Pathology and Genomic Medicine, Houston Methodist Research Institute, Houston, Texas 77030, United States
| | - Selvakannan Periasamy
- School of Science, STEM College, RMIT University, Melbourne 3001, Victoria, Australia
| | - Brendan Dyett
- School of Science, STEM College, RMIT University, Melbourne 3001, Victoria, Australia
| | - Prashant Dogra
- Mathematics in Medicine Program, Houston Methodist Research Institute, Houston, Texas 77030, United States
- Department of Physiology and Biophysics, Weill Cornell Medical College, New York, New York 10021, United States
| | - Andrew S Ball
- School of Science, STEM College, RMIT University, Melbourne 3001, Victoria, Australia
| | - Leslie Y Yeo
- School of Engineering, STEM College, RMIT University, Melbourne 3001, Victoria, Australia
| | - Jacinta F White
- The Commonwealth Scientific and Industrial Research Organisation, Clayton 3169, Victoria, Australia
| | - Zhihui Wang
- Mathematics in Medicine Program, Houston Methodist Research Institute, Houston, Texas 77030, United States
- Department of Physiology and Biophysics, Weill Cornell Medical College, New York, New York 10021, United States
- Neal Cancer Center, Houston Methodist Research Institute, Houston, Texas 77030, United States
| | - Vittorio Cristini
- Mathematics in Medicine Program, Houston Methodist Research Institute, Houston, Texas 77030, United States
- Neal Cancer Center, Houston Methodist Research Institute, Houston, Texas 77030, United States
- Department of Imaging Physics, University of Texas M.D. Anderson Cancer Center, Houston, Texas 77030, United States
- Physiology, Biophysics, and Systems Biology Program, Graduate School of Medical Sciences, Weill Cornell Medicine, New York, New York 10021, United States
| | - Chinnaswamy Jagannath
- Department of Pathology and Genomic Medicine, Houston Methodist Research Institute, Houston, Texas 77030, United States
| | - Arshad Khan
- Department of Pathology and Genomic Medicine, Houston Methodist Research Institute, Houston, Texas 77030, United States
| | - Sarvesh K Soni
- School of Science, STEM College, RMIT University, Melbourne 3001, Victoria, Australia
| | - Calum J Drummond
- School of Science, STEM College, RMIT University, Melbourne 3001, Victoria, Australia
| | - Charlotte E Conn
- School of Science, STEM College, RMIT University, Melbourne 3001, Victoria, Australia
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18
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Sarkar S, Dyett B, Lakic B, Ball AS, Yeo LY, White JF, Soni S, Drummond CJ, Conn CE. Cubosome Lipid Nanocarriers As a Drug Delivery Vehicle for Intracellular Mycobacterium tuberculosis Infections. ACS APPLIED MATERIALS & INTERFACES 2023; 15:21819-21829. [PMID: 37018059 DOI: 10.1021/acsami.3c00101] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
Mycobacterium tuberculosis (MTB) causes the infectious disease tuberculosis (TB), responsible for more deaths than any other single infectious disease in history. Intracellular MTB are slow growing and difficult to target with traditional antitubercular drugs, leading to the emergence of multidrug resistance in TB infection, which is a major global public health issue. Recent advances in innovative lipid nanotechnologies for drug delivery have demonstrated promising outcomes for chronic infectious diseases but have not yet been tested as potential delivery systems for intracellular infections such as TB. The current study evaluates the potential of monoolein (MO)-based cationic cubosomes for the encapsulation and delivery of the first line antitubercular drug rifampicin (RIF) against an MTB-H37Ra in vitro culture model. In particular, we show that the use of cationic cubosomes as delivery vehicles reduced the minimum inhibitory concentration (MIC) of RIF by 2-fold against actively replicating MTB-H37Ra (compared to that of the free drug) and also shortened the lifecycle duration of axenic MTB-H37Ra from 5 to 3 days. The cubosome-mediated delivery was also found to be effective against intracellular MTB-H37Ra within THP-1 human macrophages, with a 2.8 log reduction in viability of the bacilli after 6 days incubation at the MIC. The killing time was also reduced from 8 to 6 days without distressing the host macrophages. Mechanistic studies on the uptake of RIF-loaded cationic cubosomes using total internal reflection fluorescence microscopy (TIRFM) demonstrated the capacity of these lipid particles to effectively target intracellular bacteria. Overall, these results demonstrate that cationic cubosomes are a potent delivery system for the antitubercular drug RIF for therapeutic management of TB.
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Affiliation(s)
- Sampa Sarkar
- School of Science, STEM College, RMIT University, Melbourne, Victoria 3001, Australia
| | - Brendan Dyett
- School of Science, STEM College, RMIT University, Melbourne, Victoria 3001, Australia
| | - Biserka Lakic
- School of Science, STEM College, RMIT University, Melbourne, Victoria 3001, Australia
| | - Andrew S Ball
- School of Science, STEM College, RMIT University, Melbourne, Victoria 3001, Australia
| | - Leslie Y Yeo
- School of Engineering, STEM College, RMIT University, Melbourne, Victoria 3001, Australia
| | - Jacinta F White
- The Commonwealth Scientific and Industrial Research Organisation, Manufacturing, Clayton, Victoria 3169, Australia
| | - Sarvesh Soni
- School of Science, STEM College, RMIT University, Melbourne, Victoria 3001, Australia
| | - Calum J Drummond
- School of Science, STEM College, RMIT University, Melbourne, Victoria 3001, Australia
| | - Charlotte E Conn
- School of Science, STEM College, RMIT University, Melbourne, Victoria 3001, Australia
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19
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Leu JSL, Teoh JJX, Ling ALQ, Chong J, Loo YS, Mat Azmi ID, Zahid NI, Bose RJC, Madheswaran T. Recent Advances in the Development of Liquid Crystalline Nanoparticles as Drug Delivery Systems. Pharmaceutics 2023; 15:pharmaceutics15051421. [PMID: 37242663 DOI: 10.3390/pharmaceutics15051421] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2023] [Revised: 04/22/2023] [Accepted: 04/25/2023] [Indexed: 05/28/2023] Open
Abstract
Due to their distinctive structural features, lyotropic nonlamellar liquid crystalline nanoparticles (LCNPs), such as cubosomes and hexosomes, are considered effective drug delivery systems. Cubosomes have a lipid bilayer that makes a membrane lattice with two water channels that are intertwined. Hexosomes are inverse hexagonal phases made of an infinite number of hexagonal lattices that are tightly connected with water channels. These nanostructures are often stabilized by surfactants. The structure's membrane has a much larger surface area than that of other lipid nanoparticles, which makes it possible to load therapeutic molecules. In addition, the composition of mesophases can be modified by pore diameters, thus influencing drug release. Much research has been conducted in recent years to improve their preparation and characterization, as well as to control drug release and improve the efficacy of loaded bioactive chemicals. This article reviews current advances in LCNP technology that permit their application, as well as design ideas for revolutionary biomedical applications. Furthermore, we have provided a summary of the application of LCNPs based on the administration routes, including the pharmacokinetic modulation property.
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Affiliation(s)
- Jassica S L Leu
- School of Pharmacy, International Medical University, Jalan Jalil Perkasa 19, Bukit Jalil, Kuala Lumpur 57000, Selangor, Malaysia
| | - Jasy J X Teoh
- School of Pharmacy, International Medical University, Jalan Jalil Perkasa 19, Bukit Jalil, Kuala Lumpur 57000, Selangor, Malaysia
| | - Angel L Q Ling
- School of Pharmacy, International Medical University, Jalan Jalil Perkasa 19, Bukit Jalil, Kuala Lumpur 57000, Selangor, Malaysia
| | - Joey Chong
- School of Pharmacy, International Medical University, Jalan Jalil Perkasa 19, Bukit Jalil, Kuala Lumpur 57000, Selangor, Malaysia
| | - Yan Shan Loo
- Department of Chemistry, Faculty of Science, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia
| | - Intan Diana Mat Azmi
- Department of Chemistry, Faculty of Science, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia
| | - Noor Idayu Zahid
- Centre for Fundamental and Frontier Sciences in Nanostructure Self-Assembly, Department of Chemistry, Faculty of Science, Universiti Malaya, Kuala Lumpur 50603, Selangor, Malaysia
| | - Rajendran J C Bose
- Masonic Medical Research Institute, 2150 Bleecker St, Utica, NY 13501, USA
| | - Thiagarajan Madheswaran
- Department of Pharmaceutical Technology, School of Pharmacy, International Medical University, Jalan Jalil Perkasa 19, Bukit Jalil, Kuala Lumpur 57000, Selangor, Malaysia
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20
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Vitória Pupo Silvestrini A, Garcia Praça F, Nani Leite M, Carvalho de Abreu Fantini M, Andrey Cipriani Frade M, Vitória Lopes Badra Bentley M. Liquid crystalline nanoparticles enable a multifunctional approach for topical psoriasis therapy by co-delivering triptolide and siRNAs. Int J Pharm 2023; 640:123019. [PMID: 37149114 DOI: 10.1016/j.ijpharm.2023.123019] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2023] [Revised: 04/27/2023] [Accepted: 05/01/2023] [Indexed: 05/08/2023]
Abstract
Liquid crystalline nanoparticles (LCNs) are an attractive drugs topical delivery system due to the great internal ordering, wide interfacial area and structural similarities with the skin. In this work, LCNs were designed to encapsulate triptolide (TP) and to complex on its surface small interfering RNAs (siRNA) targeting TNF-α and IL-6, aiming at topical co-delivery and regulating multi-targets in psoriasis. These multifunctional LCNs showed appropriate physicochemical properties for topical application, such as a mean size of 150 nm, low polydispersion, TP encapsulation greater than 90% and efficient complexation with siRNA. The internal reverse hexagonal mesostructure of LCNs was confirmed by SAXS while their morphology was assessed by cryo-TEM. In vitro permeation studies revealed an increase of more than 20-fold in the distribution of TP through the porcine epidermis/dermis was achieved after the application of LCN-TP or LCN TP in hydrogel. In cell culture, LCNs showed good compatibility and rapid internalization, which was attributed to macropinocytosis and caveolin-mediated endocytosis. Anti-inflammatory potential of multifunctional LCNs was assessed by reducing of TNF-α, IL-6, IL-1β and TGF-β1 levels in LPS-stimulated macrophages. These results support the hypothesis that the co-delivery of TP and siRNAs by LCNs may be a new strategy for psoriasis topical therapy.
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Affiliation(s)
- Ana Vitória Pupo Silvestrini
- School of Pharmaceutical Sciences of Ribeirao Preto, University of Sao Paulo, 14040-903, Ribeirao Preto, SP, Brazil
| | - Fabíola Garcia Praça
- School of Pharmaceutical Sciences of Ribeirao Preto, University of Sao Paulo, 14040-903, Ribeirao Preto, SP, Brazil
| | - Marcel Nani Leite
- Division of Dermatology, Department of Internal Medicine, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, SP, Brazil
| | | | - Marco Andrey Cipriani Frade
- Division of Dermatology, Department of Internal Medicine, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, SP, Brazil
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21
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Subramaniam S, Joyce P, Prestidge CA. Liquid crystalline lipid nanoparticles improve the antibacterial activity of tobramycin and vancomycin against intracellular Pseudomonas aeruginosa and Staphylococcus aureus. Int J Pharm 2023; 639:122927. [PMID: 37059243 DOI: 10.1016/j.ijpharm.2023.122927] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2023] [Revised: 03/24/2023] [Accepted: 04/01/2023] [Indexed: 04/16/2023]
Abstract
The intracellular survival of bacteria is a significant challenge in the fight against antimicrobial resistance. Currently available antibiotics suffer from limited penetration across host cell membranes, resulting in suboptimal treatment against the internalised bacteria. Liquid crystalline nanoparticles (LCNP) are gaining significant research interest in promoting the cellular uptake of therapeutics due to their fusogenic properties; however, they have not been reported for targeting intracellular bacteria. Herein, the cellular internalisation of LCNPs in RAW 264.7 macrophages and A549 epithelial cells was investigated and optimized through the incorporation of a cationic lipid, dimethyldioctadecylammonium bromide (DDAB). LCNPs displayed a honeycomb-like structure, while the inclusion of DDAB resulted into an onion-like organisation with larger internal pores. Cationic LCNPs enhanced the cellular uptake in both cells, reaching up to ∼90% uptake in cells. Further, LCNPs were encapsulated with tobramycin or vancomycin to improve their activity against intracellular gram-negative, Pseudomonas aeruginosa (P. aeruginosa) and gram-positive, Staphylococcus aureus (S. aureus) bacteria. The enhanced cellular uptake of cationic LCNP resulted in significant reduction of intracellular bacterial load (up to 90% reduction), compared to antibiotic dosed in its free form; with reduced performance observed for epithelial cells infected with S. aureus. Specifically engineered LCNP can re-sensitise antibiotics against both intracellular Gram positive and negative bacteria in diverse cell lines.
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Affiliation(s)
- Santhni Subramaniam
- University of South Australia, UniSA Clinical and Health Sciences, SA, 5000, Australia
| | - Paul Joyce
- University of South Australia, UniSA Clinical and Health Sciences, SA, 5000, Australia
| | - Clive A Prestidge
- University of South Australia, UniSA Clinical and Health Sciences, SA, 5000, Australia.
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22
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Yu H, Dyett BP, Zhai J, Strachan JB, Drummond CJ, Conn CE. Formation of particulate lipid lyotropic liquid crystalline nanocarriers using a microfluidic platform. J Colloid Interface Sci 2023; 634:279-289. [PMID: 36542965 DOI: 10.1016/j.jcis.2022.12.028] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2022] [Revised: 11/30/2022] [Accepted: 12/06/2022] [Indexed: 12/13/2022]
Abstract
HYPOTHESIS Non-lamellar lyotropic liquid crystal nanoparticles (LLCNPs) are gaining significant interest in the fields of drug delivery and nanomedicine. Traditional, top-down formulation strategies for LLCNPs are typically low-throughput, can lack controllability and reproducibility in the particle size distribution, and may be unsuitable for loading more fragile therapeutics. The development of a controllable, reproducible, scalable, and high-throughput strategy is urgently needed. EXPERIMENTS Monoolein (MO)-based LLCNPs with various stabilizers (F127, F108, and Tween 80) and phytantriol (PT)-F127 cubosomes were produced at various flow conditions via a bottom-up method using a microfluidic platform. FINDINGS This simple enabling strategy was used to formulate LLCNPs with lower polydispersity compared to the traditional top-down homogenization method. Significantly, particle size could be quantitatively controlled by varying the overall flow-rate; a scaling law was identified between nanoparticle mean size and the total flow rate (Q) of meansize∼Q-0.15 for MO cubosomes and meansize∼Q-0.19 for PT cubosomes (at a fixed flow rate ratio). Effective size control was achieved for a range of cubosome formulations involving different lipids and stabilizers. The formulation of stable, drug-loaded cubosomes with high encapsulation efficiency using this method was exemplified using calcein as a model drug. This work will further promote the utilisation of LLCNPs in nanomedicine and facilitate their clinical translation.
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Affiliation(s)
- Haitao Yu
- School of Science, STEM College, RMIT University, Victoria, Australia.
| | - Brendan P Dyett
- School of Science, STEM College, RMIT University, Victoria, Australia
| | - Jiali Zhai
- School of Science, STEM College, RMIT University, Victoria, Australia
| | - Jamie B Strachan
- School of Science, STEM College, RMIT University, Victoria, Australia
| | - Calum J Drummond
- School of Science, STEM College, RMIT University, Victoria, Australia.
| | - Charlotte E Conn
- School of Science, STEM College, RMIT University, Victoria, Australia.
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23
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Subramaniam S, Joyce P, Donnellan L, Young C, Wignall A, Hoffmann P, Prestidge CA. Protein adsorption determines pulmonary cell uptake of lipid-based nanoparticles. J Colloid Interface Sci 2023; 641:36-47. [PMID: 36924544 DOI: 10.1016/j.jcis.2023.03.048] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2023] [Revised: 03/05/2023] [Accepted: 03/07/2023] [Indexed: 03/13/2023]
Abstract
The inhalable administration of lipid nanoparticles is an effective strategy for localised delivery of therapeutics against various lung diseases. Of this, improved intracellular delivery of pharmaceuticals for infectious disease and cancer management is of high significance. However, the influence of lipid nanoparticle composition and structure on uptake in pulmonary cell lines, especially in the presence of biologically relevant media is poorly understood. Here, the uptake of lamellar (liposomes) versus non-lamellar (cubosomes) lipid nanoparticles in macrophages and lung epithelial cells was quantified and the influence of bronchoalveolar lavage fluid (BALF), containing native pulmonary protein and surfactant molecules is determined. Cubosome uptake in both macrophages and epithelial cells was strongly mediated by a high percentage of molecular function regulatory and binding proteins present within the protein corona. In contrast, the protein corona did not influence the uptake of liposomes in epithelial cells. In macrophages, the proteins mediated a rapid internalisation, followed by exocytosis of liposomes after 6 h incubation. These findings on the influence of biological fluid in regulating lipid nanoparticle uptake mechanisms may guide future development of optimal intracellular delivery systems for therapeutics via the pulmonary route.
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Affiliation(s)
- Santhni Subramaniam
- University of South Australia, UniSA Clinical and Health Sciences, SA 5000, Australia
| | - Paul Joyce
- University of South Australia, UniSA Clinical and Health Sciences, SA 5000, Australia
| | - Leigh Donnellan
- University of South Australia, UniSA Clinical and Health Sciences, SA 5000, Australia
| | - Clifford Young
- University of South Australia, UniSA Clinical and Health Sciences, SA 5000, Australia
| | - Anthony Wignall
- University of South Australia, UniSA Clinical and Health Sciences, SA 5000, Australia
| | - Peter Hoffmann
- University of South Australia, UniSA Clinical and Health Sciences, SA 5000, Australia
| | - Clive A Prestidge
- University of South Australia, UniSA Clinical and Health Sciences, SA 5000, Australia.
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24
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Park S, Cho NJ. Lipid Membrane Interface Viewpoint: From Viral Entry to Antiviral and Vaccine Development. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:1-11. [PMID: 36576966 DOI: 10.1021/acs.langmuir.2c02501] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Membrane-enveloped viruses are responsible for most viral pandemics in history, and more effort is needed to advance broadly applicable countermeasures to mitigate the impact of future outbreaks. In this Perspective, we discuss how biosensing techniques associated with lipid model membrane platforms are contributing to improving our mechanistic knowledge of membrane fusion and destabilization that is closely linked to viral entry as well as vaccine and antiviral drug development. A key benefit of these platforms is the simplicity of interpreting the results which can be complemented by other techniques to decipher more complicated biological observations and evaluate the biophysical functionalities that can be correlated to biological activities. Then, we introduce exciting application examples of membrane-targeting antivirals that have been refined over time and will continue to improve based on biophysical insights. Two ways to abrogate the function of viral membranes are introduced here: (1) selective disruption of the viral membrane structure and (2) alteration of the membrane component. While both methods are suitable for broadly useful antivirals, the latter also has the potential to produce an inactivated vaccine. Collectively, we emphasize how biosensing tools based on membrane interfacial science can provide valuable information that could be translated into biomedicines and improve their selectivity and performance.
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Affiliation(s)
- Soohyun Park
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore
| | - Nam-Joon Cho
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore
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25
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Zhai J, Bao L, Walduck AK, Dyett BP, Cai X, Li M, Nasa Z, Drummond CJ. Enhancing the photoluminescence and cellular uptake of fluorescent carbon nanodots via cubosome lipid nanocarriers. NANOSCALE 2022; 14:17940-17954. [PMID: 36349848 DOI: 10.1039/d2nr03415h] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Carbon nanodots (C-dots) have attracted much attention for their use in the fields of bioimaging, drug delivery, and sensing due to their excellent fluorescent and photoluminescent properties, photostability, biocompatibility, and amenability to surface modification. Herein, we report a nanocomposite formulation of C-dots (<5 nm) encapsulated in lipid-based lyotropic liquid crystalline nanoparticles (∼250 nm) via either passive diffusion or electrostatic mechanisms. The physicochemical properties of the nanocomposite formulation including particle size, surface charge, internal cubic nanostructures, and pH-dependent fluorescent properties were characterised. Upon loading of C-dots into lipid nanoparticles, the highly ordered inverse bicontinuous cubic mesophase existed in the internal phase of the nanoparticles, demonstrated by synchrotron small angle X-ray scattering, molecular dynamic simulation and cryogenic transmission electron microscopy. The pH-dependent fluorescent property of the C-dots was modified via electrostatic interaction between the C-dots and cationic lipid nanoparticles, which further enhanced the brightness of C-dots through self-quenching prevention. The cytotoxicity and cellular uptake efficiency of the developed nanocomposites were also examined in an epithelial gastric adenocarcinoma cell line (AGS) and a macrophage cell line (stimulated THP-1). Compared to free C-dots, the uptake and cell imaging potential of the C-dot nanocomposites was significantly improved, by several orders of magnitude as demonstrated by cytoplasmic fluorescent intensities using confocal microscopy. Loading C-dots into mesoporous lipid nanocarriers presents a new way of modifying C-dot physicochemical and fluorescent properties, alternative to direct chemical surface modification, and advances the bioimaging potential of C-dots by enhancing cellular uptake efficiency and converging C-dot light emission.
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Affiliation(s)
- Jiali Zhai
- School of Science, STEM College, RMIT University, Melbourne, VIC 3000, Australia.
| | - Lei Bao
- School of Engineering, STEM College, RMIT University, Melbourne, VIC 3000, Australia.
| | - Anna K Walduck
- School of Science, STEM College, RMIT University, Melbourne, VIC 3000, Australia.
| | - Brendan P Dyett
- School of Science, STEM College, RMIT University, Melbourne, VIC 3000, Australia.
| | - Xudong Cai
- School of Science, STEM College, RMIT University, Melbourne, VIC 3000, Australia.
| | - Miaosi Li
- School of Engineering, STEM College, RMIT University, Melbourne, VIC 3000, Australia.
| | - Zeyad Nasa
- Micro Nano Research Facility, RMIT University, Melbourne, VIC 3000, Australia
| | - Calum J Drummond
- School of Science, STEM College, RMIT University, Melbourne, VIC 3000, Australia.
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26
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Yu H, Palazzolo JS, Ju Y, Niego B, Pan S, Hagemeyer CE, Caruso F. Polyphenol-Functionalized Cubosomes as Thrombolytic Drug Carriers. Adv Healthc Mater 2022; 11:e2201151. [PMID: 36037807 DOI: 10.1002/adhm.202201151] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2022] [Revised: 08/03/2022] [Indexed: 01/28/2023]
Abstract
The safe administration of thrombolytic agents is a challenge for the treatment of acute thrombosis. Lipid-based nanoparticle drug delivery technologies present opportunities to overcome the existing clinical limitations and deliver thrombolytic therapy with enhanced therapeutic outcomes and safety. Herein, lipid cubosomes are examined as nanocarriers for the encapsulation of thrombolytic drugs. The lipid cubosomes are loaded with the thrombolytic drug urokinase-type plasminogen activator (uPA) and coated with a low-fouling peptide that is incorporated within a metal-phenolic network (MPN). The peptide-containing MPN (pep-MPN) coating inhibits the direct contact of uPA with the surrounding environment, as assessed by an in vitro plasminogen activation assay and an ex vivo whole blood clot degradation assay. The pep-MPN-coated cubosomes prepared with 22 wt% peptide demonstrate a cell membrane-dependent thrombolytic activity, which is attributed to their fusogenic lipid behavior. Moreover, compared with the uncoated lipid cubosomes, the uPA-loaded pep-MPN-coated cubosomes demonstrate significantly reduced nonspecific cell association (<10% of the uncoated cubosomes) in the whole blood assay, a prolonged circulating half-life, and reduced splenic uPA accumulation in mice. These studies confirm the preserved bioactivity and cell membrane-dependent release of uPA within pep-MPN-coated lipid cubosomes, highlighting their potential as a delivery vehicle for thrombolytic drugs.
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Affiliation(s)
- Haitao Yu
- Department of Chemical Engineering, The University of Melbourne, Parkville, Victoria, 3010, Australia
| | - Jason S Palazzolo
- NanoBiotechnology Laboratory, Australian Centre for Blood Diseases, Central Clinical School, Monash University, Melbourne, Victoria, 3004, Australia
| | - Yi Ju
- Department of Chemical Engineering, The University of Melbourne, Parkville, Victoria, 3010, Australia.,School of Health and Biomedical Sciences, RMIT University, Bundoora, Victoria, 3083, Australia
| | - Be'eri Niego
- NanoBiotechnology Laboratory, Australian Centre for Blood Diseases, Central Clinical School, Monash University, Melbourne, Victoria, 3004, Australia
| | - Shuaijun Pan
- Department of Chemical Engineering, The University of Melbourne, Parkville, Victoria, 3010, Australia
| | - Christoph E Hagemeyer
- NanoBiotechnology Laboratory, Australian Centre for Blood Diseases, Central Clinical School, Monash University, Melbourne, Victoria, 3004, Australia
| | - Frank Caruso
- Department of Chemical Engineering, The University of Melbourne, Parkville, Victoria, 3010, Australia
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27
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Progress and challenges of lyotropic liquid crystalline nanoparticles for innovative therapies. Int J Pharm 2022; 628:122299. [DOI: 10.1016/j.ijpharm.2022.122299] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2022] [Revised: 10/07/2022] [Accepted: 10/10/2022] [Indexed: 11/22/2022]
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28
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Rajesh S, Leiske MN, Leitch V, Zhai J, Drummond CJ, Kempe K, Tran N. Lipidic poly(2-oxazoline)s as PEG replacement steric stabilisers for cubosomes. J Colloid Interface Sci 2022. [DOI: 10.1016/j.jcis.2022.04.158
expr 856459513 + 838290945] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/16/2023]
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29
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30
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Bartkowiak A, Nazaruk E, Gajda E, Godlewska M, Gaweł D, Jabłonowska E, Bilewicz R. Simvastatin Coadministration Modulates the Electrostatically Driven Incorporation of Doxorubicin into Model Lipid and Cell Membranes. ACS Biomater Sci Eng 2022; 8:4354-4364. [PMID: 36173110 PMCID: PMC9554873 DOI: 10.1021/acsbiomaterials.2c00724] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
![]()
Understanding the interactions between drugs and lipid
membranes
is a prerequisite for finding the optimal way to deliver drugs into
cells. Coadministration of statins and anticancer agents has been
reported to have a positive effect on anticancer therapy. In this
study, we elucidate the mechanism by which simvastatin (SIM) improves
the efficiency of biological membrane penetration by the chemotherapeutic
agent doxorubicin (DOX) in neutral and slightly acidic solutions.
The incorporation of DOX, SIM, or a combination of them (DOX:SIM)
into selected single-component lipid membranes, zwitterionic unsaturated
1-palmitoyl-2-oleoyl-sn-glycero-3-phosphocholine
(POPC), neutral cholesterol, and negatively charged 1,2-dimyristoyl-sn-glycero-3-phospho-l-serine (DMPS) was assessed
using the Langmuir method. The penetration of neutral lipid monolayers
by the codelivery of SIM and DOX was clearly facilitated at pH 5.5,
which resembles the pH conditions of the environment of cancer cells.
This effect was ascribed to partial neutralization of the DOX positive
charge as the result of intermolecular interactions between DOX and
SIM. On the other hand, the penetration of the negatively charged
DMPS monolayer was most efficient in the case of the positively charged
DOX. The efficiency of the drug delivery to the cell membranes was
evaluated under in vitro conditions using a panel
of cancer-derived cell lines (A172, T98G, and HeLa). MTS and trypan
blue exclusion assays were performed, followed by confocal microscopy
and spheroid culture tests. Cells were exposed to either free drugs
or drugs encapsulated in lipid carriers termed cubosomes. We demonstrated
that the viability of cancer cells exposed to DOX was significantly
impaired in the presence of SIM, and this phenomenon was greatly magnified
when DOX and SIM were coencapsulated in cubosomes. Overall, our results
confirmed the utility of the DOX:SIM combination delivery, which enhances
the interactions between neutral components of cell membranes and
positively charged chemotherapeutic agents.
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Affiliation(s)
| | - Ewa Nazaruk
- Faculty of Chemistry, University of Warsaw, Pasteura 1, 02093 Warsaw, Poland
| | - Ewa Gajda
- Department of Biochemistry and Molecular Biology, Centre of Postgraduate Medical Education, Marymoncka 99/103, 01-813 Warsaw, Poland
| | - Marlena Godlewska
- Department of Biochemistry and Molecular Biology, Centre of Postgraduate Medical Education, Marymoncka 99/103, 01-813 Warsaw, Poland
| | - Damian Gaweł
- Department of Cell Biology and Immunology, Centre of Postgraduate Medical Education, Marymoncka 99/103, 01-813 Warsaw, Poland
| | | | - Renata Bilewicz
- Faculty of Chemistry, University of Warsaw, Pasteura 1, 02093 Warsaw, Poland
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31
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Thermo-responsive lipophilic NIPAM-based block copolymers as stabilizers for lipid-based cubic nanoparticles. Colloids Surf B Biointerfaces 2022; 220:112884. [DOI: 10.1016/j.colsurfb.2022.112884] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Revised: 09/14/2022] [Accepted: 09/25/2022] [Indexed: 11/21/2022]
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32
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Liu T, Xie Q, Dong Z, Peng Q. Nanoparticles-based delivery system and its potentials in treating central nervous system disorders. NANOTECHNOLOGY 2022; 33. [PMID: 35917704 DOI: 10.1088/1361-6528/ac85f3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/18/2022] [Accepted: 08/02/2022] [Indexed: 02/08/2023]
Abstract
Central nervous system (CNS) disorders, such as Alzheimer's disease (AD) and Parkinson's disease (PD), have become severe health concern worldwide. The treatment of the CNS diseases is of great challenges due largely to the presence of the blood-brain barrier (BBB). On the one hand, BBB protects brain from the harmful exogenous molecules via inhibiting their entry into the brain. On the other hand, it also hampers the transport of therapeutic drugs into the brain, resulting in the difficulties in treating the CNS diseases. In the past decades, nanoparticles-based drug delivery systems have shown great potentials in overcoming the BBB owing to their unique physicochemical properties, such as small size and specific morphology. In addition, functionalization of nanomaterials confers these nanocarriers controlled drug release features and targeting capacities. These properties make nanocarriers the potent delivery systems for treating the CNS disorders. Herein, we summarize the recent progress in nanoparticles-based systems for the CNS delivery, including the conventional and innovative systems. The prerequisites, drawbacks and challenges of nanocarriers (such as protein corona formation) in the CNS delivery are also discussed.
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Affiliation(s)
- Tianyou Liu
- Sichuan University, No.37 Guo Xue Xiang, Chengdu, 610041, CHINA
| | - Qinglian Xie
- Sichuan University, No.37 Guo Xue Xiang, Chengdu, 610041, CHINA
| | - Zaiquan Dong
- Mental Health Center of West China Hospital, Sichuan University, No.37 Guo Xue Xiang, Chengdu, 610041, CHINA
| | - Qiang Peng
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, No.14, Block 3, Renmin Road South, Chengdu, 610041, CHINA
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33
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Rajesh S, Gangadoo S, Nguyen H, Zhai J, Dekiwadia C, Drummond CJ, Chapman J, Truong VK, Tran N. Application of Fluconazole-Loaded pH-Sensitive Lipid Nanoparticles for Enhanced Antifungal Therapy. ACS APPLIED MATERIALS & INTERFACES 2022; 14:32845-32854. [PMID: 35850116 DOI: 10.1021/acsami.2c05165] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Cryptococcus neoformans is a yeast-like fungus that can cause the life-threatening disease cryptococcal meningitis. Numerous reports have shown increased resistance of this fungus against antifungal treatments, such as fluconazole (Fluc), contributing to an 80% global mortality rate. This work presents a novel approach to improve the delivery of the antifungal agent Fluc and increase the drug's targetability and availability at the infection site. Exploiting the acidic environment surrounding a C. neoformans infected site, we have developed pH-sensitive lipid nanoparticles (LNP) encapsulating Fluc to inhibit the growth of resistant C. neoformans. The LNP-Fluc delivery system consists of a neutral lipid monoolein (MO) and a novel synthetic ionizable lipid 2-morpholinoethyl oleate (O2ME). At neutral pH, because of the presence of O2ME, the nanoparticles are neutral and exhibit a liquid crystalline hexagonal nanostructure (hexosomes). At an acidic pH, they are positively charged with a cubic nanostructure (cubosomes), which facilitates the interaction with the negatively charged fungal cell wall. This interaction results in the MIC50 and MIC90 values of the LNP-Fluc being significantly lower than that of the free-Fluc control. Confocal laser scanning microscopy and scanning electron microscopy further support the MIC values, showing fungal cells exposed to LNP-Fluc at acidic pH were heavily distorted, demonstrating efflux of cytoplasmic molecules. In contrast, fungal cells exposed to Fluc alone showed cell walls mostly intact. This current study represents a significant advancement in delivering targeted antifungal therapy to combat fungal antimicrobial resistance.
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Affiliation(s)
- Sarigama Rajesh
- School of Science, RMIT University, 124 La Trobe St., Melbourne, VIC 3000, Australia
| | - Sheeana Gangadoo
- School of Science, RMIT University, 124 La Trobe St., Melbourne, VIC 3000, Australia
| | - Han Nguyen
- School of Science, RMIT University, 124 La Trobe St., Melbourne, VIC 3000, Australia
| | - Jiali Zhai
- School of Science, RMIT University, 124 La Trobe St., Melbourne, VIC 3000, Australia
| | - Chaitali Dekiwadia
- School of Science, RMIT University, 124 La Trobe St., Melbourne, VIC 3000, Australia
| | - Calum J Drummond
- School of Science, RMIT University, 124 La Trobe St., Melbourne, VIC 3000, Australia
| | - James Chapman
- School of Science, RMIT University, 124 La Trobe St., Melbourne, VIC 3000, Australia
| | - Vi Khanh Truong
- School of Science, RMIT University, 124 La Trobe St., Melbourne, VIC 3000, Australia
- Biomedical Nanoengineering Lab, College of Medicine and Public Health, Flinders University, Bedford Park 5043, South Australia
| | - Nhiem Tran
- School of Science, RMIT University, 124 La Trobe St., Melbourne, VIC 3000, Australia
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34
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Awad M, Barnes TJ, Joyce P, Thomas N, Prestidge CA. Liquid crystalline lipid nanoparticle promotes the photodynamic activity of gallium protoporphyrin against S. aureus biofilms. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY. B, BIOLOGY 2022; 232:112474. [PMID: 35644068 DOI: 10.1016/j.jphotobiol.2022.112474] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/21/2022] [Revised: 05/04/2022] [Accepted: 05/13/2022] [Indexed: 06/15/2023]
Abstract
Antimicrobial photodynamic therapy (aPDT) has emerged as an innovative strategy to combat antibiotic resistant microbes; yet aPDT efficacies against biofilms are sub-optimal due to inability of photosenstizers to reach microbes embedded in biofilm matrix. To overcome this challenge, liquid crystal lipid nanoparticles (LCNP) were employed in this study as a smart, biocompatible and triggerable delivery system for the new photosensitizer gallium protoporphyrin (GaPP), due to their capabilities in promoting efficient antimicrobial delivery to biofilms. The relationship between GaPP loading of LCNP, reactive oxygen species (ROS) production and the in vitro antibacterial activity against two antibiotic resistant Staphylococcus aureus strains was established. LCNP substantially improved the antibacterial activity of GaPP, completely eradicating S. aureus and MRSA planktonic cultures, using a GaPP concentration of 0.8 μM and light dose 1.9 J/cm2. At the same concentration and light dose, unformulated GaPP triggered only a 4 log10 and 2 log10 reduction in respective planktonic cultures. Most importantly, the activity of GaPP against biofilms was enhanced by 2-fold compared to unformulated GaPP, reducing the viability of S. aureus and MRSA biofilms by 8 log10 and 5 log10, respectively. The biosafety of photoactivated GaPP-LCNP was evaluated against human fibroblasts, which indicated a high safety profile of the treatment. Therefore, these findings encourage further investigations of GaPP-LCNP as a potential treatment for localized chronic infections.
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Affiliation(s)
- Muhammed Awad
- Centre for Pharmaceutical Innovation, University of South Australia, Clinical and Health Sciences, Adelaide 5000, Australia; Basil Hetzel Institute for Translational Health Research, Woodville 5011, Australia.
| | - Timothy J Barnes
- Centre for Pharmaceutical Innovation, University of South Australia, Clinical and Health Sciences, Adelaide 5000, Australia.
| | - Paul Joyce
- Centre for Pharmaceutical Innovation, University of South Australia, Clinical and Health Sciences, Adelaide 5000, Australia.
| | - Nicky Thomas
- Centre for Pharmaceutical Innovation, University of South Australia, Clinical and Health Sciences, Adelaide 5000, Australia; Basil Hetzel Institute for Translational Health Research, Woodville 5011, Australia.
| | - Clive A Prestidge
- Centre for Pharmaceutical Innovation, University of South Australia, Clinical and Health Sciences, Adelaide 5000, Australia.
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Shan X, Luo L, Yu Z, You J. Recent advances in versatile inverse lyotropic liquid crystals. J Control Release 2022; 348:1-21. [PMID: 35636617 DOI: 10.1016/j.jconrel.2022.05.036] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2022] [Revised: 05/19/2022] [Accepted: 05/21/2022] [Indexed: 01/01/2023]
Abstract
Owing to the rapid and significant progress in advanced materials and life sciences, nanotechnology is increasingly gaining in popularity. Among numerous bio-mimicking carriers, inverse lyotropic liquid crystals are known for their unique properties. These carriers make accommodation of molecules with varied characteristics achievable due to their complicated topologies. Besides, versatile symmetries of inverse LCNPs (lyotropic crystalline nanoparticles) and their aggregating bulk phases allow them to be applied in a wide range of fields including drug delivery, food, cosmetics, material sciences etc. In this review, in-depth summary, discussion and outlook for inverse lyotropic liquid crystals are provided.
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Affiliation(s)
- Xinyu Shan
- College of Pharmaceutical Sciences, Zhejiang University, 866 Yuhangtang Road, Hangzhou, Zhejiang 310058, China
| | - Lihua Luo
- College of Pharmaceutical Sciences, Zhejiang University, 866 Yuhangtang Road, Hangzhou, Zhejiang 310058, China
| | - Zhixin Yu
- College of Pharmaceutical Sciences, Zhejiang University, 866 Yuhangtang Road, Hangzhou, Zhejiang 310058, China
| | - Jian You
- College of Pharmaceutical Sciences, Zhejiang University, 866 Yuhangtang Road, Hangzhou, Zhejiang 310058, China.
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36
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Sayed N, Allawadhi P, Khurana A, Singh V, Navik U, Pasumarthi SK, Khurana I, Banothu AK, Weiskirchen R, Bharani KK. Gene therapy: Comprehensive overview and therapeutic applications. Life Sci 2022; 294:120375. [PMID: 35123997 DOI: 10.1016/j.lfs.2022.120375] [Citation(s) in RCA: 73] [Impact Index Per Article: 36.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2021] [Revised: 01/24/2022] [Accepted: 01/31/2022] [Indexed: 02/07/2023]
Abstract
Gene therapy is the product of man's quest to eliminate diseases. Gene therapy has three facets namely, gene silencing using siRNA, shRNA and miRNA, gene replacement where the desired gene in the form of plasmids and viral vectors, are directly administered and finally gene editing based therapy where mutations are modified using specific nucleases such as zinc-finger nucleases (ZFNs), transcription activator-like effector nucleases (TALENs) and clustered regulatory interspaced short tandem repeats (CRISPR)/CRISPR-associated protein (Cas)-associated nucleases. Transfer of gene is either through transformation where under specific conditions the gene is directly taken up by the bacterial cells, transduction where a bacteriophage is used to transfer the genetic material and lastly transfection that involves forceful delivery of gene using either viral or non-viral vectors. The non-viral transfection methods are subdivided into physical, chemical and biological. The physical methods include electroporation, biolistic, microinjection, laser, elevated temperature, ultrasound and hydrodynamic gene transfer. The chemical methods utilize calcium- phosphate, DAE-dextran, liposomes and nanoparticles for transfection. The biological methods are increasingly using viruses for gene transfer, these viruses could either integrate within the genome of the host cell conferring a stable gene expression, whereas few other non-integrating viruses are episomal and their expression is diluted proportional to the cell division. So far, gene therapy has been wielded in a plethora of diseases. However, coherent and innocuous delivery of genes is among the major hurdles in the use of this promising therapy. Hence this review aims to highlight the current options available for gene transfer along with the advantages and limitations of every method.
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Affiliation(s)
- Nilofer Sayed
- Department of Pharmacy, Pravara Rural Education Society's (P.R.E.S.'s) College of Pharmacy, Shreemati Nathibai Damodar Thackersey (SNDT) Women's University, Nashik 400020, Maharashtra, India
| | - Prince Allawadhi
- Department of Biosciences and Bioengineering, Indian Institute of Technology (IIT), Roorkee, Roorkee, Uttarakhand 247667, India
| | - Amit Khurana
- Centre for Biomedical Engineering (CBME), Indian Institute of Technology (IIT) Delhi, Hauz Khas, New Delhi 110016, India; Department of Veterinary Pharmacology and Toxicology, College of Veterinary Science (CVSc), PVNRTVU, Rajendranagar, Hyderabad 500030, Telangana, India; Department of Veterinary Pharmacology and Toxicology, College of Veterinary Science (CVSc), PVNRTVU, Mamnoor, Warangal 506166, Telangana, India; Institute of Molecular Pathobiochemistry, Experimental Gene Therapy and Clinical Chemistry (IFMPEGKC), RWTH Aachen University Hospital, Pauwelsstr. 30, D-52074 Aachen, Germany.
| | - Vishakha Singh
- Department of Biosciences and Bioengineering, Indian Institute of Technology (IIT), Roorkee, Roorkee, Uttarakhand 247667, India
| | - Umashanker Navik
- Department of Pharmacology, Central University of Punjab, Ghudda, Bathinda 151401, Punjab, India
| | | | - Isha Khurana
- Department of Pharmaceutical Chemistry, University Institute of Pharmaceutical Sciences (UIPS), Panjab University, Chandigarh 160014, India
| | - Anil Kumar Banothu
- Department of Veterinary Pharmacology and Toxicology, College of Veterinary Science (CVSc), PVNRTVU, Rajendranagar, Hyderabad 500030, Telangana, India
| | - Ralf Weiskirchen
- Institute of Molecular Pathobiochemistry, Experimental Gene Therapy and Clinical Chemistry (IFMPEGKC), RWTH Aachen University Hospital, Pauwelsstr. 30, D-52074 Aachen, Germany.
| | - Kala Kumar Bharani
- Department of Veterinary Pharmacology and Toxicology, College of Veterinary Science (CVSc), PVNRTVU, Mamnoor, Warangal 506166, Telangana, India.
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Lai X, Han ML, Ding Y, Chow SH, Le Brun AP, Wu CM, Bergen PJ, Jiang JH, Hsu HY, Muir BW, White J, Song J, Li J, Shen HH. A polytherapy based approach to combat antimicrobial resistance using cubosomes. Nat Commun 2022; 13:343. [PMID: 35039508 PMCID: PMC8763928 DOI: 10.1038/s41467-022-28012-5] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2021] [Accepted: 12/07/2021] [Indexed: 12/21/2022] Open
Abstract
A depleted antimicrobial drug pipeline combined with an increasing prevalence of Gram-negative ‘superbugs’ has increased interest in nano therapies to treat antibiotic resistance. As cubosomes and polymyxins disrupt the outer membrane of Gram-negative bacteria via different mechanisms, we herein examine the antimicrobial activity of polymyxin-loaded cubosomes and explore an alternative strategy via the polytherapy treatment of pathogens with cubosomes in combination with polymyxin. The polytherapy treatment substantially increases antimicrobial activity compared to polymyxin B-loaded cubosomes or polymyxin and cubosomes alone. Confocal microscopy and neutron reflectometry suggest the superior polytherapy activity is achieved via a two-step process. Firstly, electrostatic interactions between polymyxin and lipid A initially destabilize the outer membrane. Subsequently, an influx of cubosomes results in further membrane disruption via a lipid exchange process. These findings demonstrate that nanoparticle-based polytherapy treatments may potentially serve as improved alternatives to the conventional use of drug-loaded lipid nanoparticles for the treatment of “superbugs”. An increasing prevalence of Gram-negative bacteria increases the interest in nanotherapies to treat antibiotic resistance. Here, the authors examine the antimicrobial activity of polymyxin-loaded cubosomes and explore a polytherapy treatment of pathogens with cubosomes in combination with polymyxin.
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Affiliation(s)
- Xiangfeng Lai
- Department of Materials Science and Engineering, Faculty of Engineering, Monash University, Clayton, VIC, 3800, Australia
| | - Mei-Ling Han
- Infection and Immunity Program, Monash Biomedicine Discovery Institute and Department of Microbiology, Monash University, Clayton, VIC, 3800, Australia
| | - Yue Ding
- Department of Materials Science and Engineering, Faculty of Engineering, Monash University, Clayton, VIC, 3800, Australia.,Biomedicine Discovery Institute and Department of Biochemistry and Molecular Biology, Monash University, Clayton, VIC, 3800, Australia
| | - Seong Hoong Chow
- Biomedicine Discovery Institute and Department of Biochemistry and Molecular Biology, Monash University, Clayton, VIC, 3800, Australia
| | - Anton P Le Brun
- Australian Centre for Neutron Scattering, Australian Nuclear Science and Technology Organisation, Locked Bag 2001, Kirrawee DC, NSW, 2232, Australia
| | - Chun-Ming Wu
- Australian Centre for Neutron Scattering, Australian Nuclear Science and Technology Organisation, Locked Bag 2001, Kirrawee DC, NSW, 2232, Australia.,National Synchrotron Radiation Research Center, Hsinchu, 30076, Taiwan
| | - Phillip J Bergen
- Infection and Immunity Program, Monash Biomedicine Discovery Institute and Department of Microbiology, Monash University, Clayton, VIC, 3800, Australia
| | - Jhih-Hang Jiang
- Infection and Immunity Program, Monash Biomedicine Discovery Institute and Department of Microbiology, Monash University, Clayton, VIC, 3800, Australia
| | - Hsien-Yi Hsu
- School of Energy and Environment & Department of Materials Science and Engineering, City University of Hong Kong, Kowloon Tong, Hong Kong, China.,Shenzhen Research Institute of City University of Hong Kong, 518057, Shenzhen, China
| | | | | | - Jiangning Song
- Biomedicine Discovery Institute and Department of Biochemistry and Molecular Biology, Monash University, Clayton, VIC, 3800, Australia
| | - Jian Li
- Infection and Immunity Program, Monash Biomedicine Discovery Institute and Department of Microbiology, Monash University, Clayton, VIC, 3800, Australia.
| | - Hsin-Hui Shen
- Department of Materials Science and Engineering, Faculty of Engineering, Monash University, Clayton, VIC, 3800, Australia. .,Biomedicine Discovery Institute and Department of Biochemistry and Molecular Biology, Monash University, Clayton, VIC, 3800, Australia.
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38
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Zhao R, Jin X, Li A, Xu B, Shen Y, Wang W, Huang J, Zhang Y, Li X. Precise Diabetic Wound Therapy: PLS Nanospheres Eliminate Senescent Cells via DPP4 Targeting and PARP1 Activation. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2022; 9:e2104128. [PMID: 34738744 PMCID: PMC8728814 DOI: 10.1002/advs.202104128] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/16/2021] [Indexed: 05/14/2023]
Abstract
Diabetic ulcers, a difficult problem faced by clinicians, are strongly associated with an increase in cellular senescence. Few empirical studies have focused on exploring a targeted strategy to cure diabetic wounds by eliminating senescent fibroblasts (SFs) and reducing side effects. In this study, poly-l-lysine/sodium alginate (PLS) is modified with talabostat (PT100) and encapsulates a PARP1 plasmid (PARP1@PLS-PT100) for delivery to target the dipeptidyl peptidase 4 (DPP4) receptor and eliminate SFs. PARP1@PLS-PT100 releases encapsulated plasmids, displaying high selectivity for SFs over normal fibroblasts by targeting the DPP4 receptor, decreasing senescence-associated secretory phenotypes (SASPs), and stimulating the secretion of anti-inflammatory factors. Furthermore, the increased apoptosis of SFs and the disappearance of cellular senescence alleviates SASPs, accelerates re-epithelialization and collagen deposition, and significantly induces macrophage M2 polarization, which mediates tissue repair and the inflammatory response. This innovative strategy has revealed the previously undefined role of PARP1@PLS-PT100 in promoting diabetic wound healing, suggesting its therapeutic potential in refractory wound repair.
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Affiliation(s)
- Renliang Zhao
- Department of Orthopedic Surgery and Shanghai Institute of Microsurgery on ExtremitiesShanghai Jiao Tong University Affiliated Sixth People's HospitalShanghai200233China
| | - Xiangyun Jin
- Department of Orthopedic TraumaRenji HospitalSchool of MedicineShanghai Jiao Tong UniversityShanghai200127P. R. China
| | - Ang Li
- Department of Orthopedic Surgery and Shanghai Institute of Microsurgery on ExtremitiesShanghai Jiao Tong University Affiliated Sixth People's HospitalShanghai200233China
| | - Bitong Xu
- Department of SpineCenter for Orthopaedic SurgeryThe Third Affiliated Hospital of Southern Medical UniversityGuangzhou510515China
| | - Yifan Shen
- Department of Orthopedic Surgery and Shanghai Institute of Microsurgery on ExtremitiesShanghai Jiao Tong University Affiliated Sixth People's HospitalShanghai200233China
| | - Wei Wang
- Department of Orthopedic Surgery and Shanghai Institute of Microsurgery on ExtremitiesShanghai Jiao Tong University Affiliated Sixth People's HospitalShanghai200233China
| | - Jinghuan Huang
- Department of Orthopedic Surgery and Shanghai Institute of Microsurgery on ExtremitiesShanghai Jiao Tong University Affiliated Sixth People's HospitalShanghai200233China
| | - Yadong Zhang
- Department of SpineCenter for Orthopaedic SurgeryThe Third Affiliated Hospital of Southern Medical UniversityGuangzhou510515China
| | - Xiaolin Li
- Department of Orthopedic Surgery and Shanghai Institute of Microsurgery on ExtremitiesShanghai Jiao Tong University Affiliated Sixth People's HospitalShanghai200233China
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39
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Abourehab MA, Ansari MJ, Singh A, Hassan A, Abdelgawad MA, Shrivastav P, Abualsoud BM, Amaral LS, Pramanik S. Cubosomes as an emerging platform for drug delivery: a state-of-the-art review. J Mater Chem B 2022; 10:2781-2819. [DOI: 10.1039/d2tb00031h] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Lipid-based drug delivery nanoparticles, including non-lamellar type, mesophasic nanostructured materials of lyotropic liquid crystals (LLCs), have been a topic of interest for researchers for their applications in encapsulation of drugs...
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40
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Dyett BP, Yu H, Sarkar S, Strachan JB, Drummond CJ, Conn CE. Uptake Dynamics of Cubosome Nanocarriers at Bacterial Surfaces and the Routes for Cargo Internalization. ACS APPLIED MATERIALS & INTERFACES 2021; 13:53530-53540. [PMID: 34726885 DOI: 10.1021/acsami.1c09909] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Antibiotic-resistant bacteria pose a significant threat to humanity. Gram-negative strains have demonstrated resistance to last resort antibiotics, partially due to their outer membrane, which hinders transport of antimicrobials into the bacterium. Nanocarrier (NC)-mediated drug delivery is one proposed strategy for combating this emerging issue. Here, the uptake of self-assembled lipid nanocarriers of cubic symmetry (cubosomes) into bacteria revealed fundamental differences in the uptake mechanism between Gram-positive and Gram-negative bacteria. For Gram-positive bacteria, the NCs adhere to the outer peptidoglycan layers and slowly internalize to the bacterium. For Gram-negative bacteria, the NCs interact in two stages, fusion with the outer lipid membrane and then diffusion through the inner wall. The self-assembled nature of the cubosomes imparts a unique ability to transfer payloads via membrane fusion. Remarkably, the fusion uptake mechanism allowed rapid NC internalization by the Gram-negative bacteria, overcoming the outer membrane responsible for their heightened resilience. Here this is demonstrated by the marked reduction in the minimal inhibition concentration required for antibiotics against a pathogenic strain of Gram-negative bacteria, Escherichia coli. These results provide mechanistic insight for the development of lipid NCs as a new tool to combat bacteria.
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Affiliation(s)
- Brendan P Dyett
- School of Science, STEM College, RMIT University, Melbourne, Victoria 3000, Australia
| | - Haitao Yu
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, Department of Chemical Engineering, University of Melbourne, Melbourne, Victoria 3010, Australia
| | - Sampa Sarkar
- School of Science, STEM College, RMIT University, Melbourne, Victoria 3000, Australia
| | - Jamie B Strachan
- School of Science, STEM College, RMIT University, Melbourne, Victoria 3000, Australia
| | - Calum J Drummond
- School of Science, STEM College, RMIT University, Melbourne, Victoria 3000, Australia
| | - Charlotte E Conn
- School of Science, STEM College, RMIT University, Melbourne, Victoria 3000, Australia
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41
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Zaborowska M, Dziubak D, Matyszewska D, Sek S, Bilewicz R. Designing a Useful Lipid Raft Model Membrane for Electrochemical and Surface Analytical Studies. Molecules 2021; 26:5483. [PMID: 34576954 PMCID: PMC8467995 DOI: 10.3390/molecules26185483] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2021] [Revised: 09/02/2021] [Accepted: 09/03/2021] [Indexed: 12/04/2022] Open
Abstract
A model biomimetic system for the study of protein reconstitution or drug interactions should include lipid rafts in the mixed lipid monolayer, since they are usually the domains embedding membrane proteins and peptides. Four model lipid films composed of three components: 1,2-dioleoyl-sn-glycero-3-phosphocholine (DOPC), cholesterol (Chol) and sphingomyelin (SM) mixed in different molar ratios were proposed and investigated using surface pressure measurements and thermodynamic analysis of the monolayers at the air-water interface and imaged by Brewster angle microscopy. The ternary monolayers were transferred from the air-water onto the gold electrodes to form bilayer films and were studied for the first time by electrochemical methods: alternative current voltammetry and electrochemical impedance spectroscopy and imaged by atomic force microscopy. In excess of DOPC, the ternary systems remained too liquid for the raft region to be stable, while in the excess of cholesterol the layers were too solid. The layers with SM in excess lead to the formation of Chol:SM complexes but the amount of the fluid matrix was very low. The equimolar content of the three components lead to the formation of a stable and well-organized assembly with well-developed raft microdomains of larger thickness, surrounded by the more fluid part of the bilayer. The latter is proposed as a convenient raft model membrane for further physicochemical studies of interactions with drugs or pollutants or incorporation of membrane proteins.
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Affiliation(s)
| | - Damian Dziubak
- Faculty of Chemistry, Biological and Chemical Research Centre, University of Warsaw, Żwirki i Wigury 101, 02089 Warsaw, Poland; (D.D.); (S.S.)
| | - Dorota Matyszewska
- Faculty of Chemistry, Biological and Chemical Research Centre, University of Warsaw, Żwirki i Wigury 101, 02089 Warsaw, Poland; (D.D.); (S.S.)
| | - Slawomir Sek
- Faculty of Chemistry, Biological and Chemical Research Centre, University of Warsaw, Żwirki i Wigury 101, 02089 Warsaw, Poland; (D.D.); (S.S.)
| | - Renata Bilewicz
- Faculty of Chemistry, University of Warsaw, Pasteura 1, 02093 Warsaw, Poland;
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42
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Thorn CR, Raju D, Lacdao I, Gilbert S, Sivarajah P, Howell PL, Prestidge CA, Thomas N. Protective Liquid Crystal Nanoparticles for Targeted Delivery of PslG: A Biofilm Dispersing Enzyme. ACS Infect Dis 2021; 7:2102-2115. [PMID: 33908759 DOI: 10.1021/acsinfecdis.1c00014] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The glycoside hydrolase, PslG, attacks and degrades the dominant Psl polysaccharide in the exopolymeric substance (EPS) matrix of Pseudomonas aeruginosa biofilms and is a promising therapy to potentiate the effect of antibiotics. However, the need for coadministration with an antibiotic and the potential susceptibility of PslG to proteolysis highlights the need for an effective delivery system. Here, we compared liposomes versus lipid liquid crystal nanoparticles (LCNPs) loaded with PslG and tobramycin as potential formulation approaches to (1) protect PslG from proteolysis, (2) trigger the enzyme's release in the presence of bacteria, and (3) improve the total antimicrobial effect in vitro and in vivo in a Caenorhabditis elegans infection model. LCNPs were an effective formulation strategy for PslG and tobramycin that better protected the enzyme against proteolysis, triggered and sustained the release of PslG, improved the antimicrobial effect by 10-100-fold, and increased the survival of C. elegans infected with P. aeruginosa. Digestible LCNPs had the advantage of triggering the enzyme's release in the presence of bacteria. However, compared to nondigestible LCNPs, negligible differences arose between the LCNPs' ability to protect PslG from proteolysis and potentiate the antimicrobial activity in combination with tobramycin. In C. elegans, the improved antimicrobial efficacy was comparable to tobramycin-LCNPs, although the PslG + tobramycin-LCNPs achieved a greater than 10-fold reduction in bacteria compared to the unformulated combination. Herewith, LCNPs are showcased as a promising protective delivery system for novel biofilm dispersing enzymes combined with antibiotics, enabling infection-directed therapy and improved performance.
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Affiliation(s)
- Chelsea R. Thorn
- Clinical and Health Science, University of South Australia, North Tce, Adelaide, South Australia 5000, Australia
- The Basil Hetzel Institute for Translational Health Research, Woodville, South Australia 5011, Australia
- ARC Centre for Excellence in Bio-Nano Science and Technology, Adelaide, South Australia 5000, Australia
- Biofilm Test Facility, Cancer Research Institute, University of South Australia, North Tce, Adelaide, South Australia 5000, Australia
| | - Deepa Raju
- Program in Molecular Medicine, The Hospital for Sick Children, Toronto, Ontario M5G 1X8, Canada
| | - Ira Lacdao
- Program in Molecular Medicine, The Hospital for Sick Children, Toronto, Ontario M5G 1X8, Canada
| | - Stephanie Gilbert
- Program in Molecular Medicine, The Hospital for Sick Children, Toronto, Ontario M5G 1X8, Canada
| | - Piyanka Sivarajah
- Program in Molecular Medicine, The Hospital for Sick Children, Toronto, Ontario M5G 1X8, Canada
| | - P. Lynne Howell
- Program in Molecular Medicine, The Hospital for Sick Children, Toronto, Ontario M5G 1X8, Canada
- Department of Biochemistry, University of Toronto, Toronto, Ontario M5S 1A8, Canada
| | - Clive A. Prestidge
- Clinical and Health Science, University of South Australia, North Tce, Adelaide, South Australia 5000, Australia
- ARC Centre for Excellence in Bio-Nano Science and Technology, Adelaide, South Australia 5000, Australia
| | - Nicky Thomas
- Clinical and Health Science, University of South Australia, North Tce, Adelaide, South Australia 5000, Australia
- The Basil Hetzel Institute for Translational Health Research, Woodville, South Australia 5011, Australia
- ARC Centre for Excellence in Bio-Nano Science and Technology, Adelaide, South Australia 5000, Australia
- Biofilm Test Facility, Cancer Research Institute, University of South Australia, North Tce, Adelaide, South Australia 5000, Australia
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43
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Reduction of enzymatic degradation of insulin via encapsulation in a lipidic bicontinuous cubic phase. J Colloid Interface Sci 2021; 592:135-144. [PMID: 33647562 DOI: 10.1016/j.jcis.2021.02.027] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2020] [Revised: 01/14/2021] [Accepted: 02/07/2021] [Indexed: 11/22/2022]
Abstract
Oral delivery of the protein drug insulin is not currently possible due to rapid degradation of the secondary structure in low pH conditions in the stomach and under the influence of digestive enzymes in the gastrointestinal tract. Effective oral delivery of insulin and other protein- or peptide-based drugs will, therefore, require encapsulation in a material or nanoparticle. Herein we investigate the ability of the lipid bicontinuous cubic phase formed by two lipids, monoolein (MO) and phytantriol (PT), to protect encapsulated insulin from degradation by the enzyme chymotrypsin, typically found in the small intestine. High encapsulation efficiency (>80%) was achieved in both lipid cubic phases with retention of the underlying cubic nanostructure. Release of insulin from the cubic matrix was shown to be diffusion-controlled; the release rate was dependent on the cubic nanostructure and consistent with measured diffusion coefficients for encapsulated insulin. Encapsulation was shown to significantly retard enzymatic degradation relative to that in water, with the protective effect lasting up to 2 h, exemplifying the potential of these materials to protect the encapsulated protein payload during oral delivery.
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44
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Advanced Static and Dynamic Fluorescence Microscopy Techniques to Investigate Drug Delivery Systems. Pharmaceutics 2021; 13:pharmaceutics13060861. [PMID: 34208080 PMCID: PMC8230741 DOI: 10.3390/pharmaceutics13060861] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2021] [Revised: 06/07/2021] [Accepted: 06/08/2021] [Indexed: 01/01/2023] Open
Abstract
In the past decade(s), fluorescence microscopy and laser scanning confocal microscopy (LSCM) have been widely employed to investigate biological and biomimetic systems for pharmaceutical applications, to determine the localization of drugs in tissues or entire organisms or the extent of their cellular uptake (in vitro). However, the diffraction limit of light, which limits the resolution to hundreds of nanometers, has for long time restricted the extent and quality of information and insight achievable through these techniques. The advent of super-resolution microscopic techniques, recognized with the 2014 Nobel prize in Chemistry, revolutionized the field thanks to the possibility to achieve nanometric resolution, i.e., the typical scale length of chemical and biological phenomena. Since then, fluorescence microscopy-related techniques have acquired renewed interest for the scientific community, both from the perspective of instrument/techniques development and from the perspective of the advanced scientific applications. In this contribution we will review the application of these techniques to the field of drug delivery, discussing how the latest advancements of static and dynamic methodologies have tremendously expanded the experimental opportunities for the characterization of drug delivery systems and for the understanding of their behaviour in biologically relevant environments.
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45
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Jagielski J, Przysiecka Ł, Flak D, Diak M, Pietralik-Molińska Z, Kozak M, Jurga S, Nowaczyk G. Comprehensive and comparative studies on nanocytotoxicity of glyceryl monooleate- and phytantriol-based lipid liquid crystalline nanoparticles. J Nanobiotechnology 2021; 19:168. [PMID: 34082768 PMCID: PMC8176590 DOI: 10.1186/s12951-021-00913-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Accepted: 05/25/2021] [Indexed: 12/29/2022] Open
Abstract
Background Lipid liquid crystalline nanoparticles (LLCNPs) emerge as a suitable system for drug and contrast agent delivery. In this regard due to their unique properties, they offer a solubility of a variety of active pharmaceutics with different polarities increasing their stability and the possibility of controlled delivery. Nevertheless, the most crucial aspect underlying the application of LLCNPs for drug or contrast agent delivery is the unequivocal assessment of their biocompatibility, including cytotoxicity, genotoxicity, and related aspects. Although studies regarding the cytotoxicity of LLCNPs prepared from various lipids and surfactants were conducted, the actual mechanism and its impact on the cells (both cancer and normal) are not entirely comprehended. Therefore, in this study, LLCNPs colloidal formulations were prepared from two most popular structure-forming lipids, i.e., glyceryl monooleate (GMO) and phytantriol (PHT) with different lipid content of 2 and 20 w/w%, and the surfactant Pluronic F-127 using the top-down approach for further comparison of their properties. Prepared formulations were subjected to physicochemical characterization and followed with in-depth biological characterization, which included cyto- and genotoxicity towards cervical cancer cells (HeLa) and human fibroblast cells (MSU 1.1), the evaluation of cytoskeleton integrity, intracellular reactive oxygen species (ROS) generation upon treatment with prepared LLCNPs and finally the identification of internalization pathways. Results Results denote the higher cytotoxicity of PHT-based nanoparticles on both cell lines on monolayers as well as cellular spheroids, what is in accordance with evaluation of ROS activity level and cytoskeleton integrity. Detected level of ROS in cells upon the treatment with LLCNPs indicates their insignificant contribution to the cellular redox balance for most concentrations, however distinct for GMO- and PHT-based LLCNPs. The disintegration of cytoskeleton after administration of LLCNPs implies the relation between LLCNPs and F-actin filaments. Additionally, the expression of four genes involved in DNA damage and important metabolic processes was analyzed, indicating concentration–dependent differences between PHT- and GMO-based LLCNPs. Conclusions Overall, GMO-based LLCNPs emerge as potentially more viable candidates for drug delivery systems as their impact on cells is not as deleterious as PHT-based as well as they were efficiently internalized by cell monolayers and 3D spheroids. Graphic Abstract ![]()
Supplementary Information The online version contains supplementary material available at 10.1186/s12951-021-00913-5.
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Affiliation(s)
- Jakub Jagielski
- NanoBioMedical Centre, Adam Mickiewicz University, Wszechnicy Piastowskiej 3, 61-614, Poznań, Poland
| | - Łucja Przysiecka
- NanoBioMedical Centre, Adam Mickiewicz University, Wszechnicy Piastowskiej 3, 61-614, Poznań, Poland
| | - Dorota Flak
- NanoBioMedical Centre, Adam Mickiewicz University, Wszechnicy Piastowskiej 3, 61-614, Poznań, Poland
| | - Magdalena Diak
- NanoBioMedical Centre, Adam Mickiewicz University, Wszechnicy Piastowskiej 3, 61-614, Poznań, Poland
| | - Zuzanna Pietralik-Molińska
- Department of Macromolecular Physics, Faculty of Physics, Adam Mickiewicz University, Uniwersytetu Poznańskiego 2, 61-614, Poznań, Poland
| | - Maciej Kozak
- Department of Macromolecular Physics, Faculty of Physics, Adam Mickiewicz University, Uniwersytetu Poznańskiego 2, 61-614, Poznań, Poland
| | - Stefan Jurga
- NanoBioMedical Centre, Adam Mickiewicz University, Wszechnicy Piastowskiej 3, 61-614, Poznań, Poland
| | - Grzegorz Nowaczyk
- NanoBioMedical Centre, Adam Mickiewicz University, Wszechnicy Piastowskiej 3, 61-614, Poznań, Poland.
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46
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Bryant SJ, Bathke EK, Edler KJ. Bottom-up cubosome synthesis without organic solvents. J Colloid Interface Sci 2021; 601:98-105. [PMID: 34058556 DOI: 10.1016/j.jcis.2021.05.072] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2020] [Revised: 05/10/2021] [Accepted: 05/14/2021] [Indexed: 01/20/2023]
Abstract
HYPOTHESIS Bottom-up synthesis of cubosomes is more energetically favourable than top-down approaches. However, bottom-up methods often rely on organic solvents such as ethanol as diluents, and lead to concurrent formation of liposomes. We propose using non-toxic diluents such as honey, glycerol and lactic acid for bottom-up cubosome synthesis. EXPERIMENTS Cubosomes were prepared using solutions of phytantriol in a range of diluents including choline chloride-glycerol, honey, lactic acid, glycerol, and ethanol. These solutions were added dropwise to water containing the stabiliser, poloxamer 407, following an established method of cubosome synthesis. The resulting structures were characterised using small-angle X-ray scattering, DLS and cryo-TEM. FINDINGS Cubosomes were successfully formed using a range of non-toxic diluents. This demonstrates that harmful organic solvents like ethanol are not required, and that the diluents need not be hydrotropes. Furthermore, unlike ethanol, these other diluents allowed formation of cubosomes without concurrent formation of liposomes. Given the huge potential for cubosomes in drug delivery, this new method offers a potentially useful low-cost, low-toxicity synthesis option.
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Affiliation(s)
- Saffron J Bryant
- School of Science, RMIT University, Melbourne, Victoria 3001, Australia; Department of Chemistry, University of Bath, Claverton Down, Bath BA2 7AY, United Kingdom.
| | - Elly K Bathke
- Department of Chemistry, University of Bath, Claverton Down, Bath BA2 7AY, United Kingdom
| | - Karen J Edler
- Department of Chemistry, University of Bath, Claverton Down, Bath BA2 7AY, United Kingdom.
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47
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Thorn CR, Carvalho-Wodarz CDS, Horstmann JC, Lehr CM, Prestidge CA, Thomas N. Tobramycin Liquid Crystal Nanoparticles Eradicate Cystic Fibrosis-Related Pseudomonas aeruginosa Biofilms. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2021; 17:e2100531. [PMID: 33978317 DOI: 10.1002/smll.202100531] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/27/2021] [Revised: 03/15/2021] [Indexed: 06/12/2023]
Abstract
Pseudomonas aeruginosa biofilms cause persistent and chronic infections, most known clinically in cystic fibrosis (CF). Tobramycin (TOB) is a standard anti-pseudomonal antibiotic; however, in biofilm infections, its efficacy severely decreases due to limited permeability across the biofilm matrix. Herewith, a biomimetic, nanostructured, lipid liquid crystal nanoparticle-(LCNP)-formulation is discovered to significantly enhance the efficacy of TOB and eradicate P. aeruginosa biofilm infections. Using an advanced, biologically-relevant co-culture model of human CF bronchial epithelial cells infected with P. aeruginosa biofilms at an air-liquid interface, nebulized TOB-LCNPs completely eradicated 1 × 109 CFU mL-1 of P. aeruginosa after two doses, a 100-fold improvement over the unformulated antibiotic. The enhanced activity of TOB is not observed with a liposomal formulation of TOB or with ciprofloxacin, an antibiotic that readily penetrates biofilms. It is demonstrated that the unique nanostructure of the LCNPs drives the enhanced penetration of TOB across the biofilm barrier, but not through the healthy lung epithelium barrier, significantly increasing the available antibiotic concentration at the site of infection. The LCNPs are an innovative strategy to improve the performance of TOB as a directed pulmonary therapy, enabling the administration of lower doses, reducing the toxicity, and amplifying the anti-biofilm activity of the anti-pseudomonal antibiotic.
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Affiliation(s)
- Chelsea R Thorn
- Clinical and Health Science, University of South Australia, North Tce, Adelaide, SA, 5000, Australia
- The Basil Hetzel Institute for Translational Health Research, Woodville, SA, 5011, Australia
- ARC Centre for Excellence in Bio-Nano Science and Technology, Australia
- Adelaide Biofilm Test Facility, Cancer Research Institute, University of South Australia, North Tce, Adelaide, SA, 5000, Australia
| | | | - Justus C Horstmann
- Helmholtz Institute for Pharmaceutical Research Saarland (HIPS), 66123, Saarbrücken, Germany
- Department of Pharmacy, Saarland University, 66123, Saarbrücken, Germany
| | - Claus-Michael Lehr
- Helmholtz Institute for Pharmaceutical Research Saarland (HIPS), 66123, Saarbrücken, Germany
- Department of Pharmacy, Saarland University, 66123, Saarbrücken, Germany
| | - Clive A Prestidge
- Clinical and Health Science, University of South Australia, North Tce, Adelaide, SA, 5000, Australia
- ARC Centre for Excellence in Bio-Nano Science and Technology, Australia
| | - Nicky Thomas
- Clinical and Health Science, University of South Australia, North Tce, Adelaide, SA, 5000, Australia
- The Basil Hetzel Institute for Translational Health Research, Woodville, SA, 5011, Australia
- ARC Centre for Excellence in Bio-Nano Science and Technology, Australia
- Adelaide Biofilm Test Facility, Cancer Research Institute, University of South Australia, North Tce, Adelaide, SA, 5000, Australia
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48
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Dyett BP, Yu H, Lakic B, De Silva N, Dahdah A, Bao L, Blanch EW, Drummond CJ, Conn CE. Delivery of antimicrobial peptides to model membranes by cubosome nanocarriers. J Colloid Interface Sci 2021; 600:14-22. [PMID: 34000474 DOI: 10.1016/j.jcis.2021.03.161] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2020] [Revised: 03/21/2021] [Accepted: 03/28/2021] [Indexed: 11/16/2022]
Abstract
Antimicrobial peptides (AMPs), which typically disrupt the bacterial wall prompting leakage or lysis of the cell, form a growing contingent in the arsenal against antibiotic resistant bacteria. The effectiveness of AMPs is, however, hampered by their low solubility, general chemical and physical instability, and short half-life in vivo. Lipid nanocarriers such as cubosomes are effective at encapsulating and protecting proteins while simultaneously showing promise in delivery applications. Here, the efficacy of cubosome mediated delivery of AMPs is evaluated by the in-situ surface characterization of model membranes with varying composition. The cubosomes were observed to initially fuse with the membranes, with subsequent membrane disruption observed after approximately 20 - 60 min. The time for the disruption was sensitive to the charge of the cubosome as well as the composition of the bilayer. More physiologically relevant bilayers including lipids with phospho-(1'-rac-glycerol) (PG) or phosphoethanolamine (PE) headgroups were more vulnerable than those of neat phosphocholine (PC). Notably, disruption to the bilayer occurred an order of magnitude faster for encapsulated AMP compared to free AMP.
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Affiliation(s)
- Brendan P Dyett
- School of Science, STEM College, RMIT University, Victoria, Australia
| | - Haitao Yu
- School of Science, STEM College, RMIT University, Victoria, Australia
| | - Biserka Lakic
- School of Science, STEM College, RMIT University, Victoria, Australia
| | - Nilamuni De Silva
- School of Science, STEM College, RMIT University, Victoria, Australia
| | - Anthony Dahdah
- School of Science, STEM College, RMIT University, Victoria, Australia
| | - Lei Bao
- School of Engineering, STEM College, RMIT University, Victoria, Australia
| | - Ewan W Blanch
- School of Science, STEM College, RMIT University, Victoria, Australia
| | - Calum J Drummond
- School of Science, STEM College, RMIT University, Victoria, Australia.
| | - Charlotte E Conn
- School of Science, STEM College, RMIT University, Victoria, Australia.
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49
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Chang C, Meikle TG, Drummond CJ, Yang Y, Conn CE. Comparison of cubosomes and liposomes for the encapsulation and delivery of curcumin. SOFT MATTER 2021; 17:3306-3313. [PMID: 33623948 DOI: 10.1039/d0sm01655a] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Inverse bicontinuous cubic phase nanoparticles (cubosomes) have attracted significant attention in recent years, owing to their potential use as delivery vehicles for chemically fragile or poorly soluble drugs and nutraceuticals. Herein we have investigated the use of lipid nanoparticles as a delivery vehicle for curcumin, a compound with demonstrated anti-cancer properties. Curcumin is encapsulated within cubosomes comprised of several different lipid formulations, as well as phospholipid-based liposomes. The entrapment efficiency of curcumin within cubosomes was observed to vary depending on both the nanoparticle architecture and the curcumin concentration. Fluorescence spectroscopy analysis revealed that penetration of curcumin into the hydrophobic region of the bilayer was dependent on lipid composition. Curcumin was typically associated with the polar headgroup region at low concentrations, but transferred to the lipid bilayer region at higher concentrations, particularly in phytantriol cubosomes. Each nanoparticle formulation was characterized using small angle X-ray scattering and dynamic light scattering to assess the structural stability subsequent to curcumin encapsulation. The structure of the cubosomes was generally robust to the addition of curcumin, while the liposomes displayed a large increase in particle size and PDI at higher curcumin concentrations. Finally, the cytotoxicity of each formulation was assessed against murine fibroblast (NIH3T3) and murine melanoma (B16F10) cell lines in order to investigate improvements in curcumin bioavailability following encapsulation in cubosomes, as well as assess potential anti-cancer applications. Increased cytotoxicity of the cubosome-loaded curcumin against the murine melanoma cell-line demonstrates the potential of these nanoparticles as delivery vehicles for curcumin and other poorly water-soluble drugs.
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Affiliation(s)
- Cuihua Chang
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, P. R. China.
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50
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Thorn CR, Thomas N, Boyd BJ, Prestidge CA. Nano-fats for bugs: the benefits of lipid nanoparticles for antimicrobial therapy. Drug Deliv Transl Res 2021; 11:1598-1624. [PMID: 33675007 DOI: 10.1007/s13346-021-00921-w] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/20/2021] [Indexed: 12/24/2022]
Abstract
Bacterial infections are an imminent global healthcare threat evolving from rapidly advancing bacterial defence mechanisms that antibiotics fail to overcome. Antibiotics have been designed for systemic administration to target planktonic bacteria, leading to difficulties in reaching the site of localized bacterial infection and an inability to overcome the biological, chemical and physical barriers of bacteria, including biofilms, intracellular infections and antimicrobial resistance. The amphiphilic, biomimetic and antimicrobial properties of lipids provide a promising toolbox to innovate and advance antimicrobial therapies, overcoming the barriers presented by bacteria in order to directly and effectively treat recalcitrant infections. Nanoparticulate lipid-based drug delivery systems can enhance antibiotic permeation through the chemical and physical barriers of bacterial infections, as well as fuse with bacterial cell membranes, release antibiotics in response to bacteria and act synergistically with loaded antibiotics to enhance the total antimicrobial efficacy. This review explores the barriers presented by bacterial infections that pose bio-pharmaceutical challenges to antibiotics and how different structural and functional mechanisms of lipids can enhance antimicrobial therapies. Different nanoparticulate lipid-based systems are presented as valuable drug delivery systems to advance the efficacy of antibiotics, including liposomes, liquid crystalline nanoparticles, solid lipid nanoparticles, nanostructured lipid carriers and lipid nanocarriers. In summary, liquid crystalline nanoparticles are emerging with the greatest potential for clinical applications and commercial success as an "all-rounder" advanced lipid-based antimicrobial therapy that overcomes the multiple biological, chemical and physical barriers of bacteria.
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Affiliation(s)
- Chelsea R Thorn
- Clinical and Health Science, University of South Australia, City East Campus, Adelaide, SA, 5000, Australia.,The Basil Hetzel Institute for Translational Health Research, Woodville, SA, 5011, Australia.,ARC Centre of Excellence in Convergent Bio-Nano Science & Technology, University of South Australia, SA, 5000, Adelaide, Australia
| | - Nicky Thomas
- Clinical and Health Science, University of South Australia, City East Campus, Adelaide, SA, 5000, Australia.,The Basil Hetzel Institute for Translational Health Research, Woodville, SA, 5011, Australia.,ARC Centre of Excellence in Convergent Bio-Nano Science & Technology, University of South Australia, SA, 5000, Adelaide, Australia
| | - Ben J Boyd
- ARC Centre of Excellence in Convergent Bio-Nano Science & Technology, University of South Australia, SA, 5000, Adelaide, Australia.,Drug Delivery Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, 381 Royal Pde, Parkville, VIC, 3052, Australia
| | - Clive A Prestidge
- Clinical and Health Science, University of South Australia, City East Campus, Adelaide, SA, 5000, Australia. .,ARC Centre of Excellence in Convergent Bio-Nano Science & Technology, University of South Australia, SA, 5000, Adelaide, Australia.
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