51
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Nanomedicines for cancer therapy: current status, challenges and future prospects. Ther Deliv 2019; 10:113-132. [DOI: 10.4155/tde-2018-0062] [Citation(s) in RCA: 79] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
The emergence of nanomedicine as an innovative and promising alternative technology shows many advantages over conventional cancer therapies and provides new opportunities for early detection, improved treatment, and diagnosis of cancer. Despite the cancer nanomedicines’ capability of delivering chemotherapeutic agents while providing lower systemic toxicity, it is paramount to consider the cancer complexity and dynamics for bridging the translational bench-to-bedside gap. It is important to conduct appropriate investigations for exploiting the tumor microenvironment, and achieving a more comprehensive understanding of the fundamental biological processes in cancer and their roles in modulating nanoparticle–protein interactions, blood circulation, and tumor penetration. This review provides an overview of the current cancer nanomedicines, the major challenges, and the future opportunities in this research area.
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52
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Tidu A, Méducin F, Faugère AM, Guillot S. Influence of γ-Lactones on Monolinolein/Water Bulk and Emulsified Mesophases. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2018; 34:13283-13287. [PMID: 30350711 DOI: 10.1021/acs.langmuir.8b02368] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
The emulsification of two flavor compounds of the γ-lactone type with monolinolein liquid crystalline submicron particles is reported. The stabilization is ensured by the copolymer F127. γ-Nonalactone can be loaded in bicontinuous cubic monolinolein particles at a larger level (up to 20 wt %) than γ-decalactone (less than 15 wt %). The phase behavior of the ternary monolinolein/water/γ-nonalactone system was studied. The large γ-nonalactone content solubilized into cubosomes was corroborated by the observation of a wide cubic V2 range in the ternary phase diagram. Surprisingly, no inverted hexagonal phase was found in the system. On the contrary, the incorporation of γ-decalactone in the lipid particles gave rise to a dispersion of inverted hexagonal phase, which corresponds to a classical behavior of an oily additive. We finally determined the internal phase of particles including 10 wt % of γ-nonalactone upon increasing the F127 content. We thus found that γ-nonalactone restricts very significantly the interaction of the emulsifier with the cubosomes' interior.
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Affiliation(s)
- Aurélien Tidu
- Interfaces, Confinement, Matériaux et Nanostructures (ICMN), Université d'Orléans, CNRS, UMR 7374 , 1b rue de la Férollerie, CS 40059 , 45071 Orléans Cedex 2 , France
| | - Fabienne Méducin
- Interfaces, Confinement, Matériaux et Nanostructures (ICMN), Université d'Orléans, CNRS, UMR 7374 , 1b rue de la Férollerie, CS 40059 , 45071 Orléans Cedex 2 , France
| | - Anne-Marie Faugère
- Interfaces, Confinement, Matériaux et Nanostructures (ICMN), Université d'Orléans, CNRS, UMR 7374 , 1b rue de la Férollerie, CS 40059 , 45071 Orléans Cedex 2 , France
| | - Samuel Guillot
- Interfaces, Confinement, Matériaux et Nanostructures (ICMN), Université d'Orléans, CNRS, UMR 7374 , 1b rue de la Férollerie, CS 40059 , 45071 Orléans Cedex 2 , France
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53
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Barriga HMG, Holme MN, Stevens MM. Cubosomen: die nächste Generation intelligenter Lipid‐Nanopartikel? Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201804067] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Hanna M. G. Barriga
- Department of Medical Biochemistry and BiophysicsKarolinska Institute Stockholm Schweden
| | - Margaret N. Holme
- Department of Medical Biochemistry and BiophysicsKarolinska Institute Stockholm Schweden
| | - Molly M. Stevens
- Department of Medical Biochemistry and BiophysicsKarolinska Institute Stockholm Schweden
- Departments of Materials and Bioengineering and Institute of Biomedical EngineeringImperial College London London Großbritannien
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Younus M, Hawley A, Boyd BJ, Rizwan SB. Bulk and dispersed aqueous behaviour of an endogenous lipid, selachyl alcohol: Effect of Tween 80 and Pluronic F127 on nanostructure. Colloids Surf B Biointerfaces 2018; 169:135-142. [DOI: 10.1016/j.colsurfb.2018.05.013] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2018] [Revised: 05/03/2018] [Accepted: 05/06/2018] [Indexed: 11/24/2022]
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55
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Zhai J, Luwor RB, Ahmed N, Escalona R, Tan FH, Fong C, Ratcliffe J, Scoble JA, Drummond CJ, Tran N. Paclitaxel-Loaded Self-Assembled Lipid Nanoparticles as Targeted Drug Delivery Systems for the Treatment of Aggressive Ovarian Cancer. ACS APPLIED MATERIALS & INTERFACES 2018; 10:25174-25185. [PMID: 29963859 DOI: 10.1021/acsami.8b08125] [Citation(s) in RCA: 83] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
Chemotherapy using cytotoxic agents, such as paclitaxel (PTX), is one of the most effective treatments for advanced ovarian cancer. However, due to nonspecific targeting of the drug and the presence of toxic solvents required for dissolving PTX prior to injection, there are several serious side effects associated with this treatment. In this study, we explored self-assembled lipid-based nanoparticles as PTX carriers, which were able to improve its antitumour efficacy against ovarian cancer. The nanoparticles were also functionalized with epidermal growth factor receptor (EGFR) antibody fragments to explore the benefit of tumor active targeting. The formulated bicontinuous cubic- and sponge-phase nanoparticles, which were stabilized by Pluronic F127 and a lipid poly(ethylene glycol) stabilizer, showed a high capacity of PTX loading. These PTX-loaded nanoparticles also showed significantly higher cytotoxicity than a free drug formulation against HEY ovarian cancer cell lines in vitro. More importantly, the nanoparticle-based PTX treatments, with or without EGFR targeting, reduced the tumor burden by 50% compared to PTX or nondrug control in an ovarian cancer mouse xenograft model. In addition, the PTX-loaded nanoparticles were able to extend the survival of the treatment groups by up to 10 days compared to groups receiving free PTX or nondrug control. This proof-of-concept study has demonstrated the potential of these self-assembled lipid nanomaterials as effective drug delivery nanocarriers for poorly soluble chemotherapeutics, such as PTX.
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Affiliation(s)
- Jiali Zhai
- School of Science, College of Science, Engineering and Health , RMIT University , Melbourne , VIC 3000 , Australia
| | - Rodney B Luwor
- Department of Surgery, Royal Melbourne Hospital , University of Melbourne , Melbourne , VIC 3052 , Australia
| | - Nuzhat Ahmed
- Fiona Elsey Cancer Research Institute , Ballarat , VIC 3353 , Australia
- Federation University Australia , Ballarat , VIC 3010 , Australia
- The Hudson Institute of Medical Research , Clayton , VIC 3168 , Australia
- Department of Obstetrics and Gynaecology , University of Melbourne , Parkville , VIC 3052 , Australia
| | - Ruth Escalona
- Fiona Elsey Cancer Research Institute , Ballarat , VIC 3353 , Australia
- The Hudson Institute of Medical Research , Clayton , VIC 3168 , Australia
- Department of Obstetrics and Gynaecology , University of Melbourne , Parkville , VIC 3052 , Australia
| | - Fiona H Tan
- School of Science, College of Science, Engineering and Health , RMIT University , Melbourne , VIC 3000 , Australia
- Department of Surgery, Royal Melbourne Hospital , University of Melbourne , Melbourne , VIC 3052 , Australia
| | - Celesta Fong
- School of Science, College of Science, Engineering and Health , RMIT University , Melbourne , VIC 3000 , Australia
- CSIRO Manufacturing , Clayton , VIC 3168 , Australia
| | | | - Judith A Scoble
- CSIRO Manufacturing , 343 Royal Parade , Parkville , Victoria 3052 , Australia
| | - Calum J Drummond
- School of Science, College of Science, Engineering and Health , RMIT University , Melbourne , VIC 3000 , Australia
| | - Nhiem Tran
- School of Science, College of Science, Engineering and Health , RMIT University , Melbourne , VIC 3000 , Australia
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56
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Rodrigues L, Raftopoulos KN, Tandrup Schmidt S, Schneider F, Dietz H, Rades T, Franzyk H, Pedersen AE, Papadakis CM, Christensen D, Winter G, Foged C, Hubert M. Immune responses induced by nano-self-assembled lipid adjuvants based on a monomycoloyl glycerol analogue after vaccination with the Chlamydia trachomatis major outer membrane protein. J Control Release 2018; 285:12-22. [PMID: 29964134 DOI: 10.1016/j.jconrel.2018.06.028] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2018] [Revised: 06/21/2018] [Accepted: 06/25/2018] [Indexed: 01/31/2023]
Abstract
Nanocarriers based on inverse hexagonal liquid crystalline phases (hexosomes) show promising potential as vaccine delivery systems. Their unique internal structure, composed of both lipophilic domains and water-containing channels, renders them capable of accommodating immunopotentiating compounds and antigens. However, their adjuvant properties are poorly understood. We hypothesized that the supramolecular structure of the lyotropic liquid crystalline phase influences the immunostimulatory activity of lipid-based nanocarriers. To test this, hexosomes were designed containing the lipid phytantriol (Phy) and the immunopotentiator monomycoloyl glycerol-1 (MMG-1). Self-assembly of Phy and MMG-1 into nanocarriers featuring an internal hexagonal phase was confirmed by small-angle X-ray scattering and cryogenic transmission electron microscopy. The effect of the nanostructure on the adjuvant activity was studied by comparing the immunogenicity of Phy/MMG-1 hexosomes with MMG-1-containing lamellar liquid crystalline nanoparticles (liposomes, CAF04). The quality and magnitude of the elicited immune responses were determined after vaccination of CB6/F1 mice using the Chlamydia trachomatis major outer membrane protein (MOMP) as antigen. MMG-1-based hexosomes potentiated significantly stronger MOMP-specific humoral responses than CAF04 liposomes. The liposome-based vaccine formulation induced a much stronger MOMP-specific cell-mediated immune response compared to hexosome-adjuvanted MOMP, which elicited minimal MOMP-specific T-cell stimulation after vaccination. Hence, our data demonstrates that hexosomal and liposomal adjuvants activate the immune system via different mechanisms. Our work provides valuable insights into the adjuvant potential of hexosomes and emphasizes that engineering of the supramolecular structure can be used to design adjuvants with customized immunological properties.
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Affiliation(s)
- Letícia Rodrigues
- Department of Pharmacy, Pharmaceutical Technology and Biopharmacy, Ludwig-Maximilians-Universität München, Butenandtstraße 5-13, DE-81377 Munich, Germany
| | - Konstantinos N Raftopoulos
- Physics Department, Soft Matter Physics Group, Technische Universität München, James-Franck-Straße 1, DE-85748 Garching, Germany
| | - Signe Tandrup Schmidt
- Department of Pharmacy, Faculty of Health and Medical Sciences, University of Copenhagen, Universitetsparken 2, DK-2100 Copenhagen Ø, Denmark; Department of Infectious Disease Immunology, Vaccine Adjuvant Research, Statens Serum Institut, Artillerivej 5, DK-2300 Copenhagen, Denmark
| | - Fabian Schneider
- Physics Department, Institute for Advanced Study, Walter Schottky Institute, Technische Universität München, Am Coulombwall 4a, DE-85748 Garching, Germany
| | - Hendrik Dietz
- Physics Department, Institute for Advanced Study, Walter Schottky Institute, Technische Universität München, Am Coulombwall 4a, DE-85748 Garching, Germany
| | - Thomas Rades
- Department of Pharmacy, Faculty of Health and Medical Sciences, University of Copenhagen, Universitetsparken 2, DK-2100 Copenhagen Ø, Denmark
| | - Henrik Franzyk
- Department of Drug Design and Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen, Jagtvej 162, DK-2100 Copenhagen Ø, Denmark
| | - Anders Elm Pedersen
- Department of Immunology and Microbiology, Faculty of Health and Medical Sciences, University of Copenhagen, Blegdamsvej 3, DK-2200 Copenhagen, Denmark
| | - Christine M Papadakis
- Physics Department, Soft Matter Physics Group, Technische Universität München, James-Franck-Straße 1, DE-85748 Garching, Germany
| | - Dennis Christensen
- Department of Infectious Disease Immunology, Vaccine Adjuvant Research, Statens Serum Institut, Artillerivej 5, DK-2300 Copenhagen, Denmark
| | - Gerhard Winter
- Department of Pharmacy, Pharmaceutical Technology and Biopharmacy, Ludwig-Maximilians-Universität München, Butenandtstraße 5-13, DE-81377 Munich, Germany
| | - Camilla Foged
- Department of Pharmacy, Faculty of Health and Medical Sciences, University of Copenhagen, Universitetsparken 2, DK-2100 Copenhagen Ø, Denmark
| | - Madlen Hubert
- Department of Pharmacy, Pharmaceutical Technology and Biopharmacy, Ludwig-Maximilians-Universität München, Butenandtstraße 5-13, DE-81377 Munich, Germany.
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57
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Tran N, Zhai J, Conn CE, Mulet X, Waddington LJ, Drummond CJ. Direct Visualization of the Structural Transformation between the Lyotropic Liquid Crystalline Lamellar and Bicontinuous Cubic Mesophase. J Phys Chem Lett 2018; 9:3397-3402. [PMID: 29809009 DOI: 10.1021/acs.jpclett.8b01110] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
The transition between the lyotropic liquid crystalline lamellar and the bicontinuous cubic mesophase drives multiple fundamental cellular processes involving changes in cell membrane topology, including endocytosis and membrane budding. While several theoretical models have been proposed to explain this dynamic transformation, experimental validation of these models has been challenging because of the short-lived nature of the intermediates present during the phase transition. Herein, we report the direct observation of a lamellar-to-bicontinuous cubic phase transition in nanoscale dispersions using a combination of cryogenic transmission electron microscopy and static small-angle X-ray scattering. The results represent the first experimental confirmation of a theoretical model which proposed that the bicontinuous cubic phase originates from the center of a lamellar vesicle then propagates outward via the formation of interlamellar attachments and stalks. The observation was possible because of the precise control of the lipid composition to place the dispersion systems at the phase boundary of a lamellar and a cubic phase, allowing for the creation of long-lived structural intermediates. By the surveying of the nanoparticles using cryogenic transmission electron microscopy, a complete phase transition sequence was established.
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Affiliation(s)
- Nhiem Tran
- School of Science , RMIT University , Melbourne , Victoria 3000 , Australia
- CSIRO Manufacturing, Clayton , Victoria 3168 , Australia
- Australian Synchrotron, ANSTO, Clayton , Victoria 3168 , Australia
| | - Jiali Zhai
- School of Science , RMIT University , Melbourne , Victoria 3000 , Australia
- CSIRO Manufacturing, Clayton , Victoria 3168 , Australia
| | - Charlotte E Conn
- School of Science , RMIT University , Melbourne , Victoria 3000 , Australia
| | - Xavier Mulet
- CSIRO Manufacturing, Clayton , Victoria 3168 , Australia
| | | | - Calum J Drummond
- School of Science , RMIT University , Melbourne , Victoria 3000 , Australia
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58
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van 't Hag L, Gras SL, Conn CE, Drummond CJ. Lyotropic liquid crystal engineering moving beyond binary compositional space - ordered nanostructured amphiphile self-assembly materials by design. Chem Soc Rev 2018; 46:2705-2731. [PMID: 28280815 DOI: 10.1039/c6cs00663a] [Citation(s) in RCA: 119] [Impact Index Per Article: 19.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Ordered amphiphile self-assembly materials with a tunable three-dimensional (3D) nanostructure are of fundamental interest, and crucial for progressing several biological and biomedical applications, including in meso membrane protein crystallization, as drug and medical contrast agent delivery vehicles, and as biosensors and biofuel cells. In binary systems consisting of an amphiphile and a solvent, the ability to tune the 3D cubic phase nanostructure, lipid bilayer properties and the lipid mesophase is limited. A move beyond the binary compositional space is therefore required for efficient engineering of the required material properties. In this critical review, the phase transitions upon encapsulation of more than 130 amphiphilic and soluble additives into the bicontinuous lipidic cubic phase under excess hydration are summarized. The data are interpreted using geometric considerations, interfacial curvature, electrostatic interactions, partition coefficients and miscibility of the alkyl chains. The obtained lyotropic liquid crystal engineering design rules can be used to enhance the formulation of self-assembly materials and provides a large library of these materials for use in biomedical applications (242 references).
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Affiliation(s)
- Leonie van 't Hag
- Department of Chemical and Biomolecular Engineering, The University of Melbourne, Parkville, Victoria 3010, Australia
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59
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Tran N, Mulet X, Hawley AM, Fong C, Zhai J, Le TC, Ratcliffe J, Drummond CJ. Manipulating the Ordered Nanostructure of Self-Assembled Monoolein and Phytantriol Nanoparticles with Unsaturated Fatty Acids. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2018; 34:2764-2773. [PMID: 29381863 DOI: 10.1021/acs.langmuir.7b03541] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Mesophase structures of self-assembled lyotropic liquid crystalline nanoparticles are important factors that directly influence their ability to encapsulate and release drugs and their biological activities. However, it is difficult to predict and precisely control the mesophase behavior of these materials, especially in complex systems with several components. In this study, we report the controlled manipulation of mesophase structures of monoolein (MO) and phytantriol (PHYT) nanoparticles by adding unsaturated fatty acids (FAs). By using high throughput formulation and small-angle X-ray scattering characterization methods, the effects of FAs chain length, cis-trans isomerism, double bond location, and level of chain unsaturation on self-assembled systems are determined. Additionally, the influence of temperature on the phase behavior of these nanoparticles is analyzed. We found that in general, the addition of unsaturated FAs to MO and PHYT induces the formation of mesophases with higher Gaussian surface curvatures. As a result, a rich variety of lipid polymorphs are found to correspond with the increasing amounts of FAs. These phases include inverse bicontinuous cubic, inverse hexagonal, and discrete micellar cubic phases and microemulsion. However, there are substantial differences between the phase behavior of nanoparticles with trans FA, cis FAs with one double bond, and cis FAs with multiple double bonds. Therefore, the material library produced in this study will assist the selection and development of nanoparticle-based drug delivery systems with desired mesophase.
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Affiliation(s)
- Nhiem Tran
- CSIRO Manufacturing , Clayton, Victoria 3149, Australia
| | - Xavier Mulet
- CSIRO Manufacturing , Clayton, Victoria 3149, Australia
| | - Adrian M Hawley
- Australian Synchrotron, ANSTO , Clayton, Victoria 3149, Australia
| | - Celesta Fong
- CSIRO Manufacturing , Clayton, Victoria 3149, Australia
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60
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Tran N, Hocquet M, Eon B, Sangwan P, Ratcliffe J, Hinton TM, White J, Ozcelik B, Reynolds NP, Muir BW. Non-lamellar lyotropic liquid crystalline nanoparticles enhance the antibacterial effects of rifampicin against Staphylococcus aureus. J Colloid Interface Sci 2018; 519:107-118. [PMID: 29486430 DOI: 10.1016/j.jcis.2018.02.048] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2018] [Revised: 02/15/2018] [Accepted: 02/15/2018] [Indexed: 01/01/2023]
Abstract
The fight against infection in an era of emerging antibiotic resistant bacteria is one of the grandest scientific challenges facing society today. Nano-carriers show great promise in improving the antibacterial activity of antibiotics as they are able to enhance their solubility, provide sustained release and reduce toxic side effects via specifically targeting infection sites. Here, we investigate the antibacterial effect of two lipidic nano-carriers that contain the poorly soluble antibiotic rifampicin in their bilayers. One nanoparticle is assembled solely from the lipid monoolein, thus is neutral at physiological pH and the other contains a mixture of monoolein and the cationic lipid N-[1-(2,3-Dioleoyloxy)propyl]-N,N,N-trimethylammonium methyl-sulfate (DOTAP), thus is positively charged. Our results show that rifampicin-loaded nanoparticles reduce the minimum inhibitory concentration against Staphylococcus aureus compared to rifampicin alone, however this reduction was most pronounced for the positively charged nanoparticles. Fluorescent microscopy revealed binding of all nanoparticles to the bacteria and enhanced binding was observed for the charged nanoparticles. This suggests that the cationic lipids promote electrostatic interactions with the negatively charged bacterial membrane. Förster resonance energy transfer demonstrated that the cationic charged nanoparticles were able to fuse with bacterial membranes whilst atomic force microscopy and transmission electron microscopy revealed structural damage to the bacterial membranes caused by the nanoparticles. Significantly, we identified a concentration window in which the nanoparticles exhibited antibacterial activity while not affecting HeLa and CHO cell viability. This ability to improve the efficacy of antibiotics without affecting their eukaryotic cytotoxicity is of significant importance for future development of nanomedicine based strategies to combat infections.
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Affiliation(s)
- Nhiem Tran
- School of Science, RMIT University, Melbourne, Victoria 3000, Australia.
| | - Marion Hocquet
- CSIRO Manufacturing, Clayton, Victoria 3168, Australia; Chimie Paris Tech, Paris, France
| | - Blandine Eon
- CSIRO Manufacturing, Clayton, Victoria 3168, Australia; Chimie Paris Tech, Paris, France
| | | | | | | | - Jacinta White
- CSIRO Manufacturing, Clayton, Victoria 3168, Australia
| | | | - Nicholas P Reynolds
- Swinburne University of Technology, ARC Training Centre for Biodevices, Faculty of Science, Engineering and Technology, Victoria 3122, Australia
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61
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Guillot S, Méducin F, Poljak K, Malard V, Foucault-Collet A, Serieye S, Pichon C. Nanostructured monolinolein miniemulsions as delivery systems: Role of the internal mesophase on cytotoxicity and cell internalization. Int J Pharm 2017; 523:142-150. [DOI: 10.1016/j.ijpharm.2017.03.012] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2016] [Revised: 03/05/2017] [Accepted: 03/07/2017] [Indexed: 11/28/2022]
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62
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Deshpande S, Singh N. Influence of Cubosome Surface Architecture on Its Cellular Uptake Mechanism. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2017; 33:3509-3516. [PMID: 28325047 DOI: 10.1021/acs.langmuir.6b04423] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Interaction of nanoparticles with biological systems is a key factor influencing their efficacy as a drug delivery vehicle. The inconsistency in defining the optimal design parameters across different nanoparticle types suggests that information gained from one model system need not apply to other systems. Therefore, selection of a versatile model system is critical for such studies. Cubosomes are one of the potential drug delivery vehicles due to their biocompatibility, stability, ability to carry hydrophobic, hydrophilic, and amphiphilic drugs, and ease of surface modification. Here we report the importance of surface architecture of cubosomes by comparing their cellular uptake mechanism with poly-ε-lysine (PεL)-coated cubosomes. Uncoated cubosomes entered cells by an energy-independent, cholesterol-dependent mechanism, whereas PεL-coated cubosomes relied on energy-dependent mechanisms to enter the endosomes. As endosomal entrapment was evaded by uncoated cubosomes, they can be preferably used for cytosolic delivery of therapeutic agents.
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Affiliation(s)
- Sonal Deshpande
- Centre for Biomedical Engineering, Indian Institute of Technology-Delhi , Hauz Khas, New Delhi-110016, India
| | - Neetu Singh
- Centre for Biomedical Engineering, Indian Institute of Technology-Delhi , Hauz Khas, New Delhi-110016, India
- Biomedical Engineering Unit, All India Institute of Medical Sciences , Ansari Nagar, New Delhi-110029, India
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63
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Zhai J, Tran N, Sarkar S, Fong C, Mulet X, Drummond CJ. Self-assembled Lyotropic Liquid Crystalline Phase Behavior of Monoolein-Capric Acid-Phospholipid Nanoparticulate Systems. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2017; 33:2571-2580. [PMID: 28191966 DOI: 10.1021/acs.langmuir.6b04045] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
We report here the lyotropic liquid crystalline phase behavior of two lipid nanoparticulate systems containing mixtures of monoolein, capric acid, and saturated diacyl phosphatidylcholines dispersed by the Pluronic F127 block copolymer. Synchrotron small-angle X-ray scattering (SAXS) was used to screen the phase behavior of a library of lipid nanoparticles in a high-throughput manner. It was found that adding capric acid and phosphatidylcholines had opposing effects on the spontaneous membrane curvature of the monoolein lipid layer and hence the internal mesophase of the final nanoparticles. By varying the relative concentration of the three lipid components, we were able to establish a library of nanoparticles with a wide range of mesophases including at least the inverse bicontinuous primitive and double diamond cubic phases, the inverse hexagonal phase, the fluid lamellar phase, and possibly other phases. Furthermore, the in vitro cytotoxicity assay showed that the endogenous phospholipid-containing nanoparticles were less toxic to cultured cell lines compared to monoolein-based counterparts, improving the potential of the nonlamellar lipid nanoparticles for biomedical applications.
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Affiliation(s)
- Jiali Zhai
- School of Science, College of Science, Engineering and Health, RMIT University , Melbourne, Victoria 3000, Australia
| | - Nhiem Tran
- School of Science, College of Science, Engineering and Health, RMIT University , Melbourne, Victoria 3000, Australia
| | - Sampa Sarkar
- School of Science, College of Science, Engineering and Health, RMIT University , Melbourne, Victoria 3000, Australia
| | - Celesta Fong
- School of Science, College of Science, Engineering and Health, RMIT University , Melbourne, Victoria 3000, Australia
- CSIRO Manufacturing , Clayton, Victoria 3168, Australia
| | - Xavier Mulet
- CSIRO Manufacturing , Clayton, Victoria 3168, Australia
| | - Calum J Drummond
- School of Science, College of Science, Engineering and Health, RMIT University , Melbourne, Victoria 3000, Australia
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64
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Feast GC, Lepitre T, Tran N, Conn CE, Hutt OE, Mulet X, Drummond CJ, Savage GP. Inverse hexagonal and cubic micellar lyotropic liquid crystalline phase behaviour of novel double chain sugar-based amphiphiles. Colloids Surf B Biointerfaces 2017; 151:34-38. [DOI: 10.1016/j.colsurfb.2016.12.004] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2016] [Revised: 11/04/2016] [Accepted: 12/06/2016] [Indexed: 12/25/2022]
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65
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Biffi S, Andolfi L, Caltagirone C, Garrovo C, Falchi AM, Lippolis V, Lorenzon A, Macor P, Meli V, Monduzzi M, Obiols-Rabasa M, Petrizza L, Prodi L, Rosa A, Schmidt J, Talmon Y, Murgia S. Cubosomes for in vivo fluorescence lifetime imaging. NANOTECHNOLOGY 2017; 28:055102. [PMID: 28032617 DOI: 10.1088/1361-6528/28/5/055102] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Herein we provided the first proof of principle for in vivo fluorescence optical imaging application using monoolein-based cubosomes in a healthy mouse animal model. This formulation, administered at a non-cytotoxic concentration, was capable of providing both exogenous contrast for NIR fluorescence imaging with very high efficiency and chemospecific information upon lifetime analysis. Time-resolved measurements of fluorescence after the intravenous injection of cubosomes revealed that the dye rapidly accumulated mainly in the liver, while lifetimes profiles obtained in vivo allowed for discriminating between free dye or dye embedded within the cubosome nanostructure after injection.
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Affiliation(s)
- Stefania Biffi
- Institute for Maternal and Child Health-IRCCS 'Burlo Garofolo', Trieste, Italy
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66
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Meli V, Caltagirone C, Sinico C, Lai F, Falchi AM, Monduzzi M, Obiols-Rabasa M, Picci G, Rosa A, Schmidt J, Talmon Y, Murgia S. Theranostic hexosomes for cancer treatments: an in vitro study. NEW J CHEM 2017. [DOI: 10.1039/c6nj03232j] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Targeted liquid crystalline nanoparticles with a reverse hexagonal inner structure as diagnostic and therapeutic tools in oncology.
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67
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Ferreira G, Piculell L, Loh W. Addition of n-Alcohols Induces a Variety of Liquid-Crystalline Structures in Surfactant-Rich Cores of Dispersed Block Copolymer/Surfactant Nanoparticles. ACS OMEGA 2016; 1:1104-1113. [PMID: 31457183 PMCID: PMC6640792 DOI: 10.1021/acsomega.6b00267] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/25/2016] [Accepted: 11/18/2016] [Indexed: 06/08/2023]
Abstract
Poly(acrylamide)-b-complex salts made from a symmetric poly(acrylate-b-acrylamide) block copolymer, where the acrylate charges are neutralized by cationic surfactant counterions, form kinetically stable aqueous dispersions of hierarchical aggregates with a liquid-crystalline complex salt core and a diffuse hydrated shell. By the addition of suitable amounts of long-chain alcohols, such as octanol or decanol, the structure of the internal phase can be varied, producing micellar cubic, hexagonal, lamellar, or reverse hexagonal liquid-crystalline phases. In addition, a disordered reverse micellar phase forms at the highest content of octanol. These core structures are the same as those previously obtained for macroscopic homopolymer poly(acrylate) complex salt/water/n-alcohol systems at the corresponding compositions. The poly(acrylamide)-b-complex salt dispersions are kinetically stable for several weeks, with their colloidal properties and internal structures remaining unchanged. The methodology described here establishes an easy and robust protocol for the preparation of colloidal nanoparticles with variable but controlled internal structures.
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Affiliation(s)
- Guilherme
A. Ferreira
- Institute
of Chemistry, University of Campinas (UNICAMP), P.O. Box 6154, 13083-970 Campinas, São Paulo, Brazil
| | - Lennart Piculell
- Division
of Physical Chemistry, Lund University, P.O. Box 124, S-221 00 Lund, Sweden
| | - Watson Loh
- Institute
of Chemistry, University of Campinas (UNICAMP), P.O. Box 6154, 13083-970 Campinas, São Paulo, Brazil
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68
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Dual-modality NIRF-MRI cubosomes and hexosomes: High throughput formulation and in vivo biodistribution. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 71:584-593. [PMID: 27987748 DOI: 10.1016/j.msec.2016.10.028] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/11/2016] [Revised: 09/29/2016] [Accepted: 10/16/2016] [Indexed: 01/02/2023]
Abstract
Engineered nanoparticles with multiple complementary imaging modalities are of great benefit to the rapid treatment and diagnosis of disease in various organs. Herein, we report the formulation of cubosomes and hexosomes that carry multiple amphiphilic imaging contrast agents in their self-assembled lipid bilayers. This is the first report of the use of both near infrared fluorescent (NIRF) imaging and gadolinium lipid based magnetic resonance (MR) imaging modalities in cubosomes and hexosomes. High-throughput screening was used to rapidly optimize formulations with desirable nano-architectures and low in vitro cytotoxicity. The dual-modal imaging nanoparticles in vivo biodistribution and organ specific contrast enhancement were then studied. The NIRF in vivo imaging results indicated accumulation of both cubosomes and hexosomes in the liver and spleen of mice up to 20h post-injection. Remarkably, the biodistribution of the nanoparticle formulations was affected by the mesophase (i.e. cubic or hexagonal), a finding of significant importance for the future use of these compounds, with hexosomes showing higher accumulation in the spleen than the liver compared to cubosomes. Furthermore, in vivo MRI data of animals injected with either type of lyotropic liquid crystal nanoparticle displayed enhanced contrast in the liver and spleen.
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69
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A structurally diverse library of safe-by-design citrem-phospholipid lamellar and non-lamellar liquid crystalline nano-assemblies. J Control Release 2016; 239:1-9. [DOI: 10.1016/j.jconrel.2016.08.011] [Citation(s) in RCA: 56] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2016] [Revised: 08/08/2016] [Accepted: 08/09/2016] [Indexed: 12/11/2022]
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70
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Jabłonowska E, Nazaruk E, Matyszewska D, Speziale C, Mezzenga R, Landau EM, Bilewicz R. Interactions of Lipidic Cubic Phase Nanoparticles with Lipid Membranes. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2016; 32:9640-8. [PMID: 27550742 DOI: 10.1021/acs.langmuir.6b01746] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
The interactions of liquid-crystalline monoolein (GMO) cubic phase nanoparticles with various model lipid membranes spread at the air-solution interface by the Langmuir technique were investigated. Cubosomes have attracted attention as potential biocompatible drug delivery systems, and thus understanding their mode of interaction with membranes is of special interest. Cubosomes spreading at the air-water interface as well as interactions with a monolayer of 1, 2-dipalmitoyl-sn-glycero-3-phosphocholine (DPPC) compressed to different surface pressures were studied by monitoring surface pressure-time dependencies at constant area. Progressive incorporation of the nanoparticles was shown to lead to mixed monolayer formation. The concentration of cubosomes influenced the mechanism of incorporation, as well as the fluidity and permeability of the resulting lipid membranes. Brewster angle microscopy images reflected the dependence of the monolayer structure on the cubosomes presence in the subphase. A parameter Csat was introduced to indicate the point of saturation of the lipid membrane with the cubosomal material. This parameter was found to depend on the surface pressure showing that the cubosomes disintegrate in prolonged contact with the membrane, filling available voids in the lipid membrane. At highest surface pressures when the layer is most compact, the penetration of cubosomal material is not possible and only some exchange with the membrane lipid becomes the route of including GMO into the layer. Finally, comparative studies of the interactions between lipids with various headgroup charges with cubosomes suggest that at high surface pressure an exchange of lipid component between the monolayer and the cubosome in its intact form may occur.
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Affiliation(s)
| | - Ewa Nazaruk
- Faculty of Chemistry, University of Warsaw , Pasteura 1, 02-093 Warsaw, Poland
| | - Dorota Matyszewska
- Faculty of Chemistry, Biological and Chemical Research Centre, University of Warsaw , Żwirki i Wigury 101, 02-089 Warsaw, Poland
| | - Chiara Speziale
- Department of Health Sciences & Technology, ETH Zurich , 8092 Zurich, Switzerland
| | - Raffaele Mezzenga
- Department of Health Sciences & Technology, ETH Zurich , 8092 Zurich, Switzerland
| | - Ehud M Landau
- Department of Chemistry, University of Zurich , Winterthurerstrasse 190, 8057 Zurich, Switzerland
| | - Renata Bilewicz
- Faculty of Chemistry, University of Warsaw , Pasteura 1, 02-093 Warsaw, Poland
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71
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Fong WK, Negrini R, Vallooran JJ, Mezzenga R, Boyd BJ. Responsive self-assembled nanostructured lipid systems for drug delivery and diagnostics. J Colloid Interface Sci 2016; 484:320-339. [PMID: 27623190 DOI: 10.1016/j.jcis.2016.08.077] [Citation(s) in RCA: 86] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2016] [Revised: 08/27/2016] [Accepted: 08/30/2016] [Indexed: 01/19/2023]
Abstract
While stimuli-responsive polymers have received a huge amount of attention in the literature, responsive lipid-based mesophase systems offer unique opportunities in biomedical applications such as drug delivery and biosensing. The different mesophase equilibrium structures enables dynamic switching between nanostructures to facilitate drug release or as a transducer for recognition events. In drug delivery, this behavior offers researchers the means to deliver a therapeutic payload at a specific rate and time i.e. 'on-demand'. This review summarizes the distinctive features of these multifaceted materials and aggregates the current state of the art research from our groups and others into the use of these materials as bulk gels and nanostructured dispersions for drug delivery, biosensing and diagnostics.
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Affiliation(s)
- Wye-Khay Fong
- Food and Soft Materials Science, Department of Health Science and Technology, ETH Zurich, Schmelzbergstrasse 9, CH-8092 Zurich, Switzerland; Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, 381 Royal Parade, Parkville, Victoria 3052, Australia
| | - Renata Negrini
- Food and Soft Materials Science, Department of Health Science and Technology, ETH Zurich, Schmelzbergstrasse 9, CH-8092 Zurich, Switzerland
| | - Jijo J Vallooran
- Food and Soft Materials Science, Department of Health Science and Technology, ETH Zurich, Schmelzbergstrasse 9, CH-8092 Zurich, Switzerland
| | - Raffaele Mezzenga
- Food and Soft Materials Science, Department of Health Science and Technology, ETH Zurich, Schmelzbergstrasse 9, CH-8092 Zurich, Switzerland.
| | - Ben J Boyd
- Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, 381 Royal Parade, Parkville, Victoria 3052, Australia.
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72
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Zhai J, Suryadinata R, Luan B, Tran N, Hinton TM, Ratcliffe J, Hao X, Drummond CJ. Amphiphilic brush polymers produced using the RAFT polymerisation method stabilise and reduce the cell cytotoxicity of lipid lyotropic liquid crystalline nanoparticles. Faraday Discuss 2016; 191:545-563. [PMID: 27453499 DOI: 10.1039/c6fd00039h] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Self-assembled lipid lyotropic liquid crystalline nanoparticles such as hexosomes and cubosomes contain internal anisotropic and isotropic nanostructures, respectively. Despite the remarkable potential of such nanoparticles in various biomedical applications, the stabilisers used in formulating the nanoparticles are often limited to commercially available polymers such as the Pluronic block copolymers. This study explored the potential of using Reversible Addition-Fragmentation chain Transfer (RAFT) technology to design amphiphilic brush-type polymers for the purpose of stabilising phytantriol and monoolein-based lipid dispersions. The synthesised brush-type polymers consisted of a hydrophobic C12 short chain and a hydrophilic poly(ethylene glycol)methyl ether acrylate (PEGA) long chain with multiple 9-unit poly(ethylene oxide) (PEO) brushes with various molecular weights. It was observed that increasing the PEO brush density and thus the length of the hydrophilic component improved the stabilisation effectiveness for phytantriol and monoolein-based cubosomes. Synchrotron small-angle X-ray scattering (SAXS) experiments confirmed that the RAFT polymer-stabilised cubosomes had an internal double-diamond cubic phase with tunable water channel sizes. These properties were dependent on the molecular weight of the polymers, which were considered in some cases to be anisotropically distributed within the cubosomes. The in vitro toxicity of the cubosomes was assessed by cell viability of two human adenocarcinoma cell lines and haemolytic activities to mouse erythrocytes. The results showed that phytantriol cubosomes stabilised by the RAFT polymers were less toxic compared to their Pluronic F127-stabilised analogues. This study provides valuable insight into designing non-linear amphiphilic polymers for the effective stabilisation and cellular toxicity improvement of self-assembled lipid lyotropic liquid crystalline nanoparticles.
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Affiliation(s)
- Jiali Zhai
- School of Science, College of Science, Engineering and Health, RMIT University, PO Box 2476, Melbourne, Victoria, 3001 Australia.
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73
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Tran N, Hawley AM, Zhai J, Muir BW, Fong C, Drummond CJ, Mulet X. High-Throughput Screening of Saturated Fatty Acid Influence on Nanostructure of Lyotropic Liquid Crystalline Lipid Nanoparticles. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2016; 32:4509-4520. [PMID: 27023315 DOI: 10.1021/acs.langmuir.5b03769] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Self-assembled lyotropic liquid crystalline lipid nanoparticles have been developed for a wide range of biomedical applications with an emerging focus for use as delivery vehicles for drugs, genes, and in vivo imaging agents. In this study, we report the generation of lipid nanoparticle libraries with information regarding mesophase and lattice parameter, which can aid the selection of formulation for a particular end-use application. In this study we elucidate the phase composition parameters that influence the internal structure of lipid nanoparticles produced from monoolein, monopalmitolein and phytantriol incorporating a variety of saturated fatty acids (FA) with different chain lengths at varying concentrations and temperatures. The material libraries were established using high throughput formulation and screening techniques, including synchrotron small-angle X-ray scattering. The results demonstrate the rich polymorphism of lipid nanoparticles with nonlamellar mesophases in the presence of saturated FAs. The inclusion of saturated FAs within the lipid nanoparticles promotes a gradual phase transition at all temperatures studied toward structures with higher negative surface curvatures (e.g., from inverse bicontinuous cubic phase to hexagonal phase and then emulsified microemulsion). The three partial phase diagrams produced are discussed in terms of the influence of FA chain length and concentration on nanoparticle internal mesophase structure and lattice parameters. The study also highlights a compositionally dependent coexistence of multiple mesophases, which may indicate the presence of multicompartment nanoparticles containing cubic/cubic and cubic/hexagonal mesophases.
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Affiliation(s)
- Nhiem Tran
- CSIRO Manufacturing , Clayton, Victoria 3168 Australia
- SAXS/WAXS Beamline, Australian Synchrotron , Clayton, Victoria 3168 Australia
| | - Adrian M Hawley
- SAXS/WAXS Beamline, Australian Synchrotron , Clayton, Victoria 3168 Australia
| | - Jiali Zhai
- CSIRO Manufacturing , Clayton, Victoria 3168 Australia
| | | | - Celesta Fong
- CSIRO Manufacturing , Clayton, Victoria 3168 Australia
| | - Calum J Drummond
- CSIRO Manufacturing , Clayton, Victoria 3168 Australia
- School of Applied Sciences, College of Science, Engineering and Health, RMIT University , Melbourne, Victoria 3000 Australia
| | - Xavier Mulet
- CSIRO Manufacturing , Clayton, Victoria 3168 Australia
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74
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Le BTC, Tran N, Mulet X, Winkler DA. Modeling the Influence of Fatty Acid Incorporation on Mesophase Formation in Amphiphilic Therapeutic Delivery Systems. Mol Pharm 2016; 13:996-1003. [DOI: 10.1021/acs.molpharmaceut.5b00848] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- By Tu C. Le
- CSIRO Manufacturing, Clayton 3169, Australia
| | - Nhiem Tran
- CSIRO Manufacturing, Clayton 3169, Australia
- Australian Synchrotron, Clayton 3168, Australia
| | | | - David A. Winkler
- CSIRO Manufacturing, Clayton 3169, Australia
- Monash Institute of Pharmaceutical Sciences, Parkville 3052, Australia
- Latrobe Institute for Molecular Science, Bundoora 3083, Australia
- School
of Chemical and Physical Sciences, Flinders University, Bedford Park 5042, Australia
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75
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Miceli V, Meli V, Blanchard-Desce M, Bsaibess T, Pampalone M, Conaldi PG, Caltagirone C, Obiols-Rabasa M, Schmidt J, Talmon Y, Casu A, Murgia S. In vitro imaging of β-cells using fluorescent cubic bicontinuous liquid crystalline nanoparticles. RSC Adv 2016. [DOI: 10.1039/c6ra09616f] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
Imaging of rat pancreatic β-cells using cubic bicontinuous liquid crystalline nanoparticles loaded with the TB139 fluorescent dye.
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76
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Abstract
Nonlamellar liquid crystalline phases are attractive platforms for drug solubilization and targeted delivery. The attractiveness of this formulation principle is linked to the nanostructural versatility, compatiblity, digestiblity and bioadhesive properties of their lipid constituents, and the capability of solubilizing and sustaining the release of amphiphilic, hydrophobic and hydrophilic drugs. Nonlamellar liquid crystalline phases offer two distinct promising strategies in the development of drug delivery systems. These comprise formation of ISAsomes (internally self-assembled ‘somes’ or particles) such as cubosomes and hexosomes, and in situ formation of parenteral dosage forms with tunable nanostructures at the site of administration. This review outlines the unique features of cubosomes and hexosomes and their potential utilization as promising platforms for drug delivery.
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77
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Zhai J, Hinton TM, Waddington LJ, Fong C, Tran N, Mulet X, Drummond CJ, Muir BW. Lipid-PEG conjugates sterically stabilize and reduce the toxicity of phytantriol-based lyotropic liquid crystalline nanoparticles. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2015; 31:10871-10880. [PMID: 26362479 DOI: 10.1021/acs.langmuir.5b02797] [Citation(s) in RCA: 74] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Lyotropic liquid crystalline nanoparticle dispersions are of interest as delivery vectors for biomedicine. Aqueous dispersions of liposomes, cubosomes, and hexosomes are commonly stabilized by nonionic amphiphilic block copolymers to prevent flocculation and phase separation. Pluronic stabilizers such as F127 are commonly used; however, there is increasing interest in using chemically reactive stabilizers for enhanced functionalization and specificity in therapeutic delivery applications. This study has explored the ability of 1,2-distearoyl-sn-glycero-3-phosphoethanolamine conjugated with poly(ethylene glycol) (DSPE-PEGMW) (2000 Da ≤ MW ≤ 5000 Da) to engineer and stabilize phytantriol-based lyotropic liquid crystalline dispersions. The poly(ethylene glycol) (PEG) moiety provides a tunable handle to the headgroup hydrophilicity/hydrophobicity to allow access to a range of nanoarchitectures in these systems. Specifically, it was observed that increasing PEG molecular weight promotes greater interfacial curvature of the dispersions, with liposomes (Lα) present at lower PEG molecular weight (MW 2000 Da), and a propensity for cubosomes (QII(P) or QII(D) phase) at MW 3400 Da or 5000 Da. In comparison to Pluronic F127-stabilized cubosomes, those made using DSPE-PEG3400 or DSPE-PEG5000 had enlarged internal water channels. The toxicity of these cubosomes was assessed in vitro using A549 and CHO cell lines, with cubosomes prepared using DSPE-PEG5000 having reduced cytotoxicity relative to their Pluronic F127-stabilized analogues.
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Affiliation(s)
- Jiali Zhai
- CSIRO Manufacturing Flagship, Private Bag 10, Clayton, VIC 3169, Australia
| | - Tracey M Hinton
- CSIRO Biosecurity Flagship, Australian Animal Health Laboratory, 5 Portarlington Road, East Geelong, VIC 3219, Australia
| | - Lynne J Waddington
- CSIRO Manufacturing Flagship, 343 Royal Parade, Parkville, VIC 3052, Australia
| | - Celesta Fong
- CSIRO Manufacturing Flagship, Private Bag 10, Clayton, VIC 3169, Australia
- School of Applied Sciences, College of Science, Engineering and Health, RMIT University , GPO Box 2476, Melbourne, VIC 3001, Australia
| | - Nhiem Tran
- CSIRO Manufacturing Flagship, Private Bag 10, Clayton, VIC 3169, Australia
| | - Xavier Mulet
- CSIRO Manufacturing Flagship, Private Bag 10, Clayton, VIC 3169, Australia
| | - Calum J Drummond
- School of Applied Sciences, College of Science, Engineering and Health, RMIT University , GPO Box 2476, Melbourne, VIC 3001, Australia
| | - Benjamin W Muir
- CSIRO Manufacturing Flagship, Private Bag 10, Clayton, VIC 3169, Australia
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78
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Rosa A, Murgia S, Putzu D, Meli V, Falchi AM. Monoolein-based cubosomes affect lipid profile in HeLa cells. Chem Phys Lipids 2015; 191:96-105. [DOI: 10.1016/j.chemphyslip.2015.08.017] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2015] [Revised: 08/28/2015] [Accepted: 08/29/2015] [Indexed: 12/24/2022]
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79
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Tran N, Mulet X, Hawley AM, Conn CE, Zhai J, Waddington LJ, Drummond CJ. First Direct Observation of Stable Internally Ordered Janus Nanoparticles Created by Lipid Self-Assembly. NANO LETTERS 2015; 15:4229-4233. [PMID: 25984944 DOI: 10.1021/acs.nanolett.5b01751] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
We present the first observation of Janus nanoparticles consisting of stable, coexisting ordered mesophases in discrete particles created by lipid self-assembly. Cryo-TEM images provided visual identification of the multicompartment Janus nanoparticles and, combined with SAXS data, confirmed the presence of mixed cubic phases and mixed cubic/hexagonal phases within individual nanoparticles. We further investigated computer visualization models to interpret the potential interface between the interconnected coexisting nanostructured domains within a single nanoparticle.
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Affiliation(s)
- Nhiem Tran
- †CSIRO, Manufacturing Flagship, Clayton, Victoria 3168, Australia
- ‡SAXS/WAXS Beamline, Australian Synchrotron, Clayton, Victoria 3168, Australia
| | - Xavier Mulet
- †CSIRO, Manufacturing Flagship, Clayton, Victoria 3168, Australia
| | - Adrian M Hawley
- ‡SAXS/WAXS Beamline, Australian Synchrotron, Clayton, Victoria 3168, Australia
| | - Charlotte E Conn
- ∥School of Applied Sciences, College of Science, Engineering and Health, RMIT University, Melbourne, Victoria 3000 Australia
| | - Jiali Zhai
- †CSIRO, Manufacturing Flagship, Clayton, Victoria 3168, Australia
| | | | - Calum J Drummond
- ∥School of Applied Sciences, College of Science, Engineering and Health, RMIT University, Melbourne, Victoria 3000 Australia
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80
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Falchi AM, Rosa A, Atzeri A, Incani A, Lampis S, Meli V, Caltagirone C, Murgia S. Effects of monoolein-based cubosome formulations on lipid droplets and mitochondria of HeLa cells. Toxicol Res (Camb) 2015. [DOI: 10.1039/c5tx00078e] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Analysis of living cells after staining with organelle-specific dyes shows that monoolein-based cubosome treatment induces accumulation of lipid droplets (green) and mitochondrial (red) hyperpolarization.
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Affiliation(s)
- Angela Maria Falchi
- Department of Biomedical Sciences
- University of Cagliari
- 09042 Monserrato
- Italy
| | - Antonella Rosa
- Department of Biomedical Sciences
- University of Cagliari
- 09042 Monserrato
- Italy
| | - Angela Atzeri
- Department of Biomedical Sciences
- University of Cagliari
- 09042 Monserrato
- Italy
| | - Alessandra Incani
- Department of Biomedical Sciences
- University of Cagliari
- 09042 Monserrato
- Italy
| | - Sandrina Lampis
- Department of Chemical and Geological Sciences
- University of Cagliari
- 09042 Monserrato
- Italy
| | - Valeria Meli
- Department of Chemical and Geological Sciences
- University of Cagliari
- 09042 Monserrato
- Italy
| | - Claudia Caltagirone
- Department of Chemical and Geological Sciences
- University of Cagliari
- 09042 Monserrato
- Italy
| | - Sergio Murgia
- Department of Chemical and Geological Sciences
- University of Cagliari
- 09042 Monserrato
- Italy
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