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Allegritti E, Giansanti L, Bordon G, Maggi MA, Luciani P, Aleandri S. Unlocking new dimensions in long-acting injectables using lipid mesophase-based beads. J Colloid Interface Sci 2024; 664:1031-1041. [PMID: 38521004 DOI: 10.1016/j.jcis.2024.03.067] [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: 01/15/2024] [Revised: 03/04/2024] [Accepted: 03/10/2024] [Indexed: 03/25/2024]
Abstract
In this study, we explored the use of lipid mesophases (LMPs) as a biocompatible and biodegradable material for sustained drug delivery. Our hypothesis centered on leveraging the high surface-to-volume ratio of LMP-based beads to enhance strength, stability, and surface interaction compared to the LMP bulk gel. To modulate drug release, we introduced antioxidant vitamin E into the beads, influencing mesophase topologies and controlling drug diffusion coefficients. Four drugs with distinct chemical properties and intended for three different pathologies and administration routes were successfully loaded into the beads with a drug entrapment efficiency exceeding 80 %. Notably, our findings revealed sustained drug release, irrespective of the drugs' chemical properties, culminating in the development of an injectable formulation. This formulation allows direct administration into the target site, minimizing systemic exposure, and thereby mitigating adverse effects. Our approach demonstrates the potential of LMP-based beads for tailored drug delivery systems with broad applications in diverse therapeutic scenarios.
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Affiliation(s)
- Elena Allegritti
- Dipartimento di Scienze Fisiche e Chimiche, Università degli Studi dell'Aquila, 67100 Coppito, L'Aquila, Italy
| | - Luisa Giansanti
- Dipartimento di Scienze Fisiche e Chimiche, Università degli Studi dell'Aquila, 67100 Coppito, L'Aquila, Italy
| | - Gregor Bordon
- Department of Chemistry, Biochemistry and Pharmaceutical Sciences, University of Bern, 3012 Bern, Switzerland
| | | | - Paola Luciani
- Department of Chemistry, Biochemistry and Pharmaceutical Sciences, University of Bern, 3012 Bern, Switzerland.
| | - Simone Aleandri
- Department of Chemistry, Biochemistry and Pharmaceutical Sciences, University of Bern, 3012 Bern, Switzerland.
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2
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Dyett BP, Sarkar S, Yu H, Strachan J, Drummond CJ, Conn CE. Overcoming Therapeutic Challenges of Antibiotic Delivery with Cubosome Lipid Nanocarriers. ACS APPLIED MATERIALS & INTERFACES 2024. [PMID: 38690584 DOI: 10.1021/acsami.4c00921] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/02/2024]
Abstract
Low discovery rates for new antibiotics, commercial disincentives to invest, and inappropriate use of existing drugs have created a perfect storm of antimicrobial resistance (AMR). This "silent pandemic" of AMR looms as an immense, global threat to human health. In tandem, many potential novel drug candidates are not progressed due to elevated hydrophobicity, which may result in poor intracellular internalization and undesirable serum protein binding. With a reducing arsenal of effective antibiotics, enabling technology platforms that improve the outcome of treatments, such as repurposing existing bioactive agents, is a prospective option. Nanocarrier (NC) mediated drug delivery is one avenue for amplifying the therapeutic outcome. Here, the performance of several antibiotic classes encapsulated within the lipid-based cubosomes is examined. The findings demonstrate that encapsulation affords significant improvements in drug concentration:inhibition outcomes and assists in other therapeutic challenges associated with internalization, enzyme degradation, and protein binding. We emphasize that a currently sidelined compound, novobiocin, became active and revealed a significant increase in inhibition against the pathogenic Gram-negative strain, Pseudomonas aeruginosa. Encapsulation affords co-delivery of multiple bioactives as a strategy for mitigating failure of monotherapies and tackling resistance. The rationale in optimized drug selection and nanocarrier choice is examined by transport modeling which agrees with experimental inhibition results. The results demonstrate that lipid nanocarrier encapsulation may alleviate a range of challenges faced by antibiotic therapies and increase the range of antibiotics available to treat bacterial infections.
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Affiliation(s)
- Brendan P Dyett
- School of Science, STEM College, RMIT University, Melbourne, Victoria 3001, Australia
| | - Sampa Sarkar
- School of Science, STEM College, RMIT University, Melbourne, Victoria 3001, Australia
| | - Haitao Yu
- School of Science, STEM College, RMIT University, Melbourne, Victoria 3001, Australia
| | - Jamie Strachan
- 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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3
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Akay S, Yaghmur A. Recent Advances in Antibacterial Coatings to Combat Orthopedic Implant-Associated Infections. Molecules 2024; 29:1172. [PMID: 38474684 DOI: 10.3390/molecules29051172] [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: 02/19/2024] [Revised: 03/02/2024] [Accepted: 03/03/2024] [Indexed: 03/14/2024] Open
Abstract
Implant-associated infections (IAIs) represent a major health burden due to the complex structural features of biofilms and their inherent tolerance to antimicrobial agents and the immune system. Thus, the viable options to eradicate biofilms embedded on medical implants are surgical operations and long-term and repeated antibiotic courses. Recent years have witnessed a growing interest in the development of robust and reliable strategies for prevention and treatment of IAIs. In particular, it seems promising to develop materials with anti-biofouling and antibacterial properties for combating IAIs on implants. In this contribution, we exclusively focus on recent advances in the development of modified and functionalized implant surfaces for inhibiting bacterial attachment and eventually biofilm formation on orthopedic implants. Further, we highlight recent progress in the development of antibacterial coatings (including self-assembled nanocoatings) for preventing biofilm formation on orthopedic implants. Among the recently introduced approaches for development of efficient and durable antibacterial coatings, we focus on the use of safe and biocompatible materials with excellent antibacterial activities for local delivery of combinatorial antimicrobial agents for preventing and treating IAIs and overcoming antimicrobial resistance.
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Affiliation(s)
- Seref Akay
- Department of Pharmacy, Faculty of Health and Medical Sciences, University of Copenhagen, 2100 Copenhagen, Denmark
| | - Anan Yaghmur
- Department of Pharmacy, Faculty of Health and Medical Sciences, University of Copenhagen, 2100 Copenhagen, Denmark
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4
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Balestri A, Gibot L, Amenitisch H, Cervelli L, Montis C, Lonetti B, Berti D. PNIPAM-stabilized cubosomes as fusogenic delivery nanovectors for anticancer applications. Colloids Surf B Biointerfaces 2023; 231:113532. [PMID: 37722254 DOI: 10.1016/j.colsurfb.2023.113532] [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: 07/19/2023] [Revised: 08/24/2023] [Accepted: 09/02/2023] [Indexed: 09/20/2023]
Abstract
In recent years, lipid cubic nanoparticles have emerged as promising nanocarriers for drug delivery, due to the several advantages they exhibit with respect to other lipid systems. Here, we report on lipid cubic nanoparticles stabilized by PNIPAM-based amphiphilic block copolymers, specifically, poly(N, N-dimethylacrylamide)-block-poly(N-isopropylacrylamide) (PDMA-b-PNIPAM), as a new class of drug delivery systems (DDS). In vitro studies on the internalization efficiency of the DDS towards two types of human cancer cells (colon HCT-116 and bladder T24 cells), carried out employing a set of sensitive techniques (confocal laser scanning microscopy (CLSM), flow cytometry, scanning electron microscopy (SEM), fluorescence spectroscopy), highlight a prominent role of PDMA-b-PNIPAM stabilizer in enhancing the uptake of cubosomes, compared to the standard Pluronic F127-based formulations. The drug delivery potential of cubosomes, tested by encapsulating a chemotherapeutic drug, camptothecin (CPT), and conducting cytotoxicity studies against 2D plated cells and 3D spheroids, confirm that PDMA-b-PNIPAM-stabilized cubosomes improve the efficacy of treatment with CPT. The origin of this effect lies in the higher lipophilicity of the stabilizer, as we confirm by studying the interaction between the cubosomes and biomimetic membranes of lipid vesicles with Small Angle X-Ray Scattering (SAXS) and CLSM experiments. These results corroborate our fundamental understanding of the interaction between cubosomes and cells, and on the role of polymer to formulate lipid cubic nanoparticles as DDS.
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Affiliation(s)
- Arianna Balestri
- Department of Chemistry "Ugo Schiff" (DICUS) & Consorzio Sistemi a Grande Interfase (CSGI), University of Florence, via della Lastruccia 13, 50019 Sesto Fiorentino, Italy
| | - Laure Gibot
- Laboratoire des IMRCP, Université de Toulouse, CNRS UMR 5623, Université Toulouse III - Paul Sabatier, 118 Rte de Narbonne, Toulouse 31062, France
| | - Heinz Amenitisch
- Institute of Inorganic Chemistry, Graz University of Technology, Graz 8010, Austria
| | - Lorenzo Cervelli
- Department of Chemistry "Ugo Schiff" (DICUS) & Consorzio Sistemi a Grande Interfase (CSGI), University of Florence, via della Lastruccia 13, 50019 Sesto Fiorentino, Italy
| | - Costanza Montis
- Department of Chemistry "Ugo Schiff" (DICUS) & Consorzio Sistemi a Grande Interfase (CSGI), University of Florence, via della Lastruccia 13, 50019 Sesto Fiorentino, Italy.
| | - Barbara Lonetti
- Laboratoire des IMRCP, Université de Toulouse, CNRS UMR 5623, Université Toulouse III - Paul Sabatier, 118 Rte de Narbonne, Toulouse 31062, France.
| | - Debora Berti
- Department of Chemistry "Ugo Schiff" (DICUS) & Consorzio Sistemi a Grande Interfase (CSGI), University of Florence, via della Lastruccia 13, 50019 Sesto Fiorentino, Italy
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Gupta U, Saren BN, Khaparkhuntikar K, Madan J, Singh PK. Applications of lipid-engineered nanoplatforms in the delivery of various cancer therapeutics to surmount breast cancer. J Control Release 2022; 348:1089-1115. [PMID: 35640765 DOI: 10.1016/j.jconrel.2022.05.034] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Revised: 05/18/2022] [Accepted: 05/21/2022] [Indexed: 11/30/2022]
Abstract
Breast cancer (BC) is the most extensively accounted malignancy among the women across the globe and is treatable in 70-80% of patients with early-stage, non-metastatic cancer. The current available therapies have been found to be less effective to treat distant organ metastases and advanced breast cancers. The clinical efficacy hugely suffers from chemoresistance, non-specific toxicity, relapse and other associated adverse effects. Furthermore, lack of controlled delivery and effective temporospatial presence of chemotherapeutics has resulted in suboptimal therapeutic response. Nanotechnology based approaches have been widely used over the period as they are nanometric, offer controlled and site-specific drug release along with reduced toxicity, improved half-life, and stability. Lipid-based nanoplatforms have grabbed a tremendous attention for delivering cancer therapeutics as they are cost-effective, scalable and provide better entrapment efficiency. In this review, all the promising applications of lipid-engineered nanotechnological tools for breast cancer will be summarized and discussed. Subsequently, BC therapy achieved with the aid of chemotherapeutics, phytomedicine, genes, peptides, photosensitizers, diagnostic and immunogenic agents etc. will be reviewed and discussed. This review gives tabular information on all the results obtained pertaining to the physicochemical properties of the lipidic nanocarrier, in vitro studies conferring to mechanistic drug release profile, cell viability, cellular apoptosis and in vivo studies referring to cellular internalisation, reduction of tumor volume, PK-PD profile, bioavailability achieved and anti-tumor activity in detail. It also gives complete information on the most relevant clinical trials done on lipidic nanoplatforms over two decades in tabular form. The review highlights the current status and future prospects of lipidic nanoplatforms with streamlined focus on cancer nanotherapeutics.
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Affiliation(s)
- Ujala Gupta
- Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad 500037, India
| | - Brojendra Nath Saren
- Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad 500037, India
| | - Kedar Khaparkhuntikar
- Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad 500037, India
| | - Jitender Madan
- Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad 500037, India
| | - Pankaj Kumar Singh
- Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad 500037, India.
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6
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Du Q, Zhou L, Li M, Lyu F, Liu J, Ding Y. Omega‐3 polyunsaturated fatty acid encapsulation system: Physical and oxidative stability, and medical applications. FOOD FRONTIERS 2022. [DOI: 10.1002/fft2.134] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Affiliation(s)
- Qiwei Du
- College of Food Science and Technology Zhejiang University of Technology Hangzhou P. R. China
- Key Laboratory of Marine Fishery Resources Exploitation & Utilization of Zhejiang Province Hangzhou P. R. China
- National R & D Branch Center for Pelagic Aquatic Products Processing (Hangzhou) Hangzhou P. R. China
| | - Linhui Zhou
- College of Food Science and Technology Zhejiang University of Technology Hangzhou P. R. China
- Key Laboratory of Marine Fishery Resources Exploitation & Utilization of Zhejiang Province Hangzhou P. R. China
- National R & D Branch Center for Pelagic Aquatic Products Processing (Hangzhou) Hangzhou P. R. China
| | - Minghui Li
- College of Food Science and Technology Zhejiang University of Technology Hangzhou P. R. China
- Key Laboratory of Marine Fishery Resources Exploitation & Utilization of Zhejiang Province Hangzhou P. R. China
- National R & D Branch Center for Pelagic Aquatic Products Processing (Hangzhou) Hangzhou P. R. China
| | - Fei Lyu
- College of Food Science and Technology Zhejiang University of Technology Hangzhou P. R. China
- Key Laboratory of Marine Fishery Resources Exploitation & Utilization of Zhejiang Province Hangzhou P. R. China
- National R & D Branch Center for Pelagic Aquatic Products Processing (Hangzhou) Hangzhou P. R. China
| | - Jianhua Liu
- College of Food Science and Technology Zhejiang University of Technology Hangzhou P. R. China
- Key Laboratory of Marine Fishery Resources Exploitation & Utilization of Zhejiang Province Hangzhou P. R. China
- National R & D Branch Center for Pelagic Aquatic Products Processing (Hangzhou) Hangzhou P. R. China
| | - Yuting Ding
- College of Food Science and Technology Zhejiang University of Technology Hangzhou P. R. China
- Key Laboratory of Marine Fishery Resources Exploitation & Utilization of Zhejiang Province Hangzhou P. R. China
- National R & D Branch Center for Pelagic Aquatic Products Processing (Hangzhou) Hangzhou P. R. China
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7
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Koroleva M, Portnaya I, Mischenko E, Abutbul-Ionita I, Kolik-Shmuel L, Danino D. Solid lipid nanoparticles and nanoemulsions with solid shell: Physical and thermal stability. J Colloid Interface Sci 2021; 610:61-69. [PMID: 34922082 DOI: 10.1016/j.jcis.2021.12.010] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2021] [Revised: 11/11/2021] [Accepted: 12/02/2021] [Indexed: 12/20/2022]
Abstract
HYPOTHESIS Nanoemulsions (NE) and solid lipid nanoparticles (SLN) used for drug delivery should have a solid shell to be stable during long shelf life and become liquid at human body temperature. The core components of lipid nanoparticles can be partially incorporated into the shell and affect the physical and thermal stability. EXPERIMENTS We prepared NE and SLN by the phase inversion temperature (PIT) method. Solidification of the surfactants Tween60 and Span 60 on the surface of NE droplets with paraffin oil resulted in the formation of the solid shell. SLN contained stearic acid in the core and the same surfactants in the solid shell. The size, structure and stability of the NE and SLN were studied by DLS and cryo-TEM. Their crystallization and melting were analyzed using DSC. FINDINGS The lipid nanoparticles were resistant to aggregation and sedimentation and hold up to at least two cycles of heating to 50-60 °C and subsequent cooling to 5 °C, even though the upper temperatures were higher than the melting point of the surfactant shell. The expected liquid core/solid shell morphology of NE was confirmed. SLN were composed of a semi-liquid core of supercooled stearic acid melt and coated with a solid surfactant shell, so they can be treated as NE. Stearic acid molecules penetrated the shell, leading to an increase in its melting point.
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Affiliation(s)
- M Koroleva
- Department of Nanomaterials and Nanotechnology, Mendeleev University of Chemical Technology, Moscow 125047, Russia.
| | - I Portnaya
- CryoEM Laboratory of Soft Matter, Faculty of Biotechnology and Food Engineering, Technion-Israel Institute of Technology, Haifa 3200003, Israel
| | - E Mischenko
- Department of Nanomaterials and Nanotechnology, Mendeleev University of Chemical Technology, Moscow 125047, Russia
| | - I Abutbul-Ionita
- CryoEM Laboratory of Soft Matter, Faculty of Biotechnology and Food Engineering, Technion-Israel Institute of Technology, Haifa 3200003, Israel
| | - L Kolik-Shmuel
- CryoEM Laboratory of Soft Matter, Faculty of Biotechnology and Food Engineering, Technion-Israel Institute of Technology, Haifa 3200003, Israel
| | - D Danino
- CryoEM Laboratory of Soft Matter, Faculty of Biotechnology and Food Engineering, Technion-Israel Institute of Technology, Haifa 3200003, Israel.
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8
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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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9
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Caselli L, Ridolfi A, Mangiapia G, Maltoni P, Moulin JF, Berti D, Steinke NJ, Gustafsson E, Nylander T, Montis C. Interaction of nanoparticles with lipid films: the role of symmetry and shape anisotropy. Phys Chem Chem Phys 2021; 24:2762-2776. [PMID: 34647947 DOI: 10.1039/d1cp03201a] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
The bioactivity, biological fate and cytotoxicity of nanomaterials when they come into contact with living organisms are determined by their interaction with biomacromolecules and biological barriers. In this context, the role of symmetry/shape anisotropy of both the nanomaterials and biological interfaces in their mutual interaction, is a relatively unaddressed issue. Here, we study the interaction of gold nanoparticles (NPs) of different shapes (nanospheres and nanorods) with biomimetic membranes of different morphology, i.e. flat membranes (2D symmetry, representative of the most common plasma membrane geometry), and cubic membranes (3D symmetry, representative of non-lamellar membranes, found in Nature under certain biological conditions). For this purpose we used an ensemble of complementary structural techniques, including Neutron Reflectometry, Grazing Incidence Small-Angle Neutron Scattering, on a nanometer lengthscale and Confocal Laser Scanning Microscopy on a micrometer length scale. We found that the structural stability of the membrane towards NPs is dependent on the topological characteristic of the lipid assembly and of the NPs, where a higher symmetry gave higher stability. In addition, Confocal Laser Scanning Microscopy analyses highlighted that NPs interact with cubic and lamellar phases according to two distinct mechanisms, related to the different structures of the lipid assemblies. This study for the first time systematically addresses the role of NPs shape in the interaction with lipid assemblies with different symmetry. The results will contribute to improve the fundamental knowledge on lipid interfaces and will provide new insights on the biological function of phase transitions as a response strategy to the exposure of NPs.
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Affiliation(s)
- Lucrezia Caselli
- Department of Chemistry, University of Florence and CSGI, Florence, Italy.
| | - Andrea Ridolfi
- Department of Chemistry, University of Florence and CSGI, Florence, Italy. .,ISMN-CNR and CSGI, Bologna, Italy
| | - Gaetano Mangiapia
- German Engineering Materials Science Centre (GEMS) at Heinz Maier-Leibnitz Zentrum (MLZ), Helmholtz-Zentrum Hereon, Lichtenbergstr. 1, 85748 Garching bei München, Germany
| | | | - Jean-François Moulin
- German Engineering Materials Science Centre (GEMS) at Heinz Maier-Leibnitz Zentrum (MLZ), Helmholtz-Zentrum Hereon, Lichtenbergstr. 1, 85748 Garching bei München, Germany
| | - Debora Berti
- Department of Chemistry, University of Florence and CSGI, Florence, Italy.
| | | | - Emil Gustafsson
- Department of Chemistry, Uppsala University, Uppsala, Sweden
| | - Tommy Nylander
- Department of Chemistry, Physical Chemistry, Lund University, Lund, Sweden. .,NanoLund, Lund University, Lund (Sweden, Lund Institute of Advanced Neutron and X-Ray Science - LINXS), Lund, Sweden
| | - Costanza Montis
- Department of Chemistry, University of Florence and CSGI, Florence, Italy.
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10
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Subramaniam S, Joyce P, Thomas N, Prestidge CA. Bioinspired drug delivery strategies for repurposing conventional antibiotics against intracellular infections. Adv Drug Deliv Rev 2021; 177:113948. [PMID: 34464665 DOI: 10.1016/j.addr.2021.113948] [Citation(s) in RCA: 42] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2021] [Revised: 08/04/2021] [Accepted: 08/23/2021] [Indexed: 12/11/2022]
Abstract
Bacteria have developed a wealth of strategies to avoid and resist the action of antibiotics, one of which involves pathogens invading and forming reservoirs within host cells. Due to the poor cell membrane permeability, stability and retention of conventional antibiotics, this renders current treatments largely ineffective, since achieving a therapeutically relevant antibiotic concentration at the site of intracellular infection is not possible. To overcome such challenges, current antibiotics are 'repurposed' via reformulation using micro- or nano-carrier systems that effectively encapsulate and deliver therapeutics across cellular membranes of infected cells. Bioinspired materials that imitate the uptake of biological particulates and release antibiotics in response to natural stimuli are recently explored to improve the targeting and specificity of this 'nanoantibiotic' approach. In this review, the mechanisms of internalization and survival of intracellular bacteria are elucidated, effectively accentuating the current treatment challenges for intracellular infections and the implications for repurposing conventional antibiotics. Key case studies of nanoantibiotics that have drawn inspiration from natural biological particles and cellular uptake pathways to effectively eradicate intracellular pathogens are detailed, clearly highlighting the rational for harnessing bioinspired drug delivery strategies.
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Affiliation(s)
- Santhni Subramaniam
- University of South Australia, UniSA Clinical and Health Sciences, SA 5000, Australia; ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, University of South Australia, Adelaide, SA 5000, Australia
| | - Paul Joyce
- University of South Australia, UniSA Clinical and Health Sciences, SA 5000, Australia; ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, University of South Australia, Adelaide, SA 5000, Australia
| | - Nicky Thomas
- University of South Australia, UniSA Clinical and Health Sciences, SA 5000, Australia; ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, University of South Australia, Adelaide, SA 5000, Australia; The Basil Hetzel Institute for Translational Health Research, Woodville, SA 5011, Australia
| | - Clive A Prestidge
- University of South Australia, UniSA Clinical and Health Sciences, SA 5000, Australia; ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, University of South Australia, Adelaide, SA 5000, Australia.
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11
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Singhal K, Kaushik N, Kumar A. Cubosomes: Versatile Nanosized Formulation for Efficient Delivery of Therapeutics. Curr Drug Deliv 2021; 19:644-657. [PMID: 34238187 DOI: 10.2174/1567201818666210708123855] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2021] [Revised: 04/30/2021] [Accepted: 05/18/2021] [Indexed: 11/22/2022]
Abstract
Cubosomes are bicontinuous cubic phase nanoparticles with a size range from 10-500 nm. They offer various advantages with some limitations at the production level, e.g., cubosomes have the feature to encapsulate a large amount of the drug due to its large internal area owing to cuboidal shape thus has a larger area but limited in large scale production due to its high viscosity which is associated with the problem in homogenization. This nanoparticulate formulation is compatible for administration by various routes like oral, transdermal, topical, buccal, etc. The drug release mechanism from cubosomes was reported to be dependent on the partition coefficient and diffusion process. Compared with liposomes, cubosomes show many differences in various aspects like shape, size, ingredients, and mode of action. The main ingredients for the preparation of cubosomes include lipids, stabilizer, aqueous phases, and therapeutic agents. Several methods have been reported for cubosomes, including the top-down method, the bottom-up method, and the adopted coarse method. For the optimization of cubosomes, the key factors to be considered, which will affect the cubosomes characteristics include; the concentration of lipid, temperature, and pH. At present, many research groups are exploring the potential of cubosomes as biosensors and nanocarriers. Based on the latest reports and research, this review illuminates the structure of the Cubosomes, mechanism of the drug release, different methods of preparation with factors affecting the cubosomes, application of cubosomes in different sectors, differences from the liposomes, and advantages.
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Affiliation(s)
- Keshav Singhal
- Department of Pharmacy, School of Medical & Allied Sciences, Galgotias University, Greater Noida, India
| | - Niranjan Kaushik
- Department of Pharmacy, School of Medical & Allied Sciences, Galgotias University, Greater Noida, India
| | - Amrish Kumar
- Department of Pharmacy, School of Medical & Allied Sciences, Galgotias University, Greater Noida, India
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12
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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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13
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Naidjonoka P, Fornasier M, Pålsson D, Rudolph G, Al-Rudainy B, Murgia S, Nylander T. Bicontinuous cubic liquid crystalline phase nanoparticles stabilized by softwood hemicellulose. Colloids Surf B Biointerfaces 2021; 203:111753. [PMID: 33845421 DOI: 10.1016/j.colsurfb.2021.111753] [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: 10/29/2020] [Revised: 03/04/2021] [Accepted: 04/03/2021] [Indexed: 10/21/2022]
Abstract
The colloidal stability of lipid based cubosomes, aqueous dispersion of inverse bicontinuous cubic phase, can be significantly increased by a stabilizer. The most commonly used stabilizers are non-ionic tri-block copolymers, poloxamers, which adsorb at the lipid-water interface and hence sterically stabilize the dispersion. One of the challenges with these synthetic polymers is the effect on the internal structure of the cubosomes and the potential toxicity when these nanoparticles are applied as nanomedicine platforms. The natural polysaccharide, softwood hemicellulose, has been proved to be an excellent stabilizer for oil-in-water emulsions, partially due to the presence of hydrophobic lignin in the extract which to some extent is associated to hemicellulose. Herein, we reported for the first time cubosomes stabilized by two types of softwood hemicelluloses, where one is extracted through thermomechanical pulping (TMP, low lignin content) and the other obtained from sodium-based sulfite liquor (SSL, high lignin content). The effect of the two hemicellulose samples on the colloidal stability and structure of monoolein-based cubosomes have been investigated via DLS, SAXS, AFM and cryo-TEM. The data obtained suggest that both types of the hemicelluloses stabilize monoolein (GMO) based cubosomes in water without significantly affecting their size, morphology and inner structure. SSL-extracted hemicellulose yields the most stable cubosomes, likely due to the higher content of lignin in comparison to TMP-stabilized ones. In addition, the stability of these particles was tested under physiological conditions relevant to possible application as drug carriers.
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Affiliation(s)
- Polina Naidjonoka
- Division of Physical Chemistry, Department of Chemistry, Lund University, P.O. Box 124, Lund, SE-221 00, Sweden.
| | - Marco Fornasier
- Division of Physical Chemistry, Department of Chemistry, Lund University, P.O. Box 124, Lund, SE-221 00, Sweden; Department of Chemical and Geological Sciences, University of Cagliari, s.s 554 bivio Sestu, Monserrato, I-09042, Italy.
| | - David Pålsson
- Division of Physical Chemistry, Department of Chemistry, Lund University, P.O. Box 124, Lund, SE-221 00, Sweden
| | - Gregor Rudolph
- Department of Chemical Engineering, Lund University, SE-221 00, Lund, Sweden
| | - Basel Al-Rudainy
- Department of Chemical Engineering, Lund University, SE-221 00, Lund, Sweden
| | - Sergio Murgia
- Department of Life and Environmental Sciences, University of Cagliari, via Ospedale 72, Cagliari, I-09124, Italy
| | - Tommy Nylander
- Division of Physical Chemistry, Department of Chemistry, Lund University, P.O. Box 124, Lund, SE-221 00, Sweden; NanoLund, Lund University, Lund, Sweden; Lund Institute of Advanced Neutron and X-ray Science LINXS, Lund, Sweden
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14
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Meikle TG, Dharmadana D, Hoffmann SV, Jones NC, Drummond CJ, Conn CE. Analysis of the structure, loading and activity of six antimicrobial peptides encapsulated in cubic phase lipid nanoparticles. J Colloid Interface Sci 2020; 587:90-100. [PMID: 33360913 DOI: 10.1016/j.jcis.2020.11.124] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2020] [Revised: 11/26/2020] [Accepted: 11/30/2020] [Indexed: 01/20/2023]
Abstract
The growing global threat of antimicrobial resistance, combined with the slowed development of novel antibiotics, has resulted in a critical need for new antimicrobial therapies. Naturally occurring antimicrobial peptides (AMPs) can act as highly potent, broad-spectrum antibiotics which may be less likely to engender resistance in target organisms. However, their susceptibility to proteolysis and lack of specificity necessitates the use of a drug delivery vehicle to both protect the AMP from chemical degradation and provide a platform for further functionalization, enabling the development of targeted delivery and release systems. In this study, we have used lipid-based inverse bicontinuous cubic phase nanoparticles (cubosomes) as delivery vehicles for six different antimicrobial peptides. The phase stability, morphology, and peptide loading efficiency of the nanoparticles were characterized and rationalized according to lipid composition, buffer conditions, as well as peptide charge and hydrophobicity. The AMP loading efficiency within cubosomes was increased significantly through simple manipulation of electrostatic charge. Minimum inhibitory concentration (MIC) values were determined for formulations with high loading efficiency against Staphylococcus aureus, Bacilus cereus, Escherichia coli, and Pseudomonas aeruginosa. Encapsulation within a lipid nanocarrier was shown to increase antimicrobial activity for some formulations. We anticipate that the further development of these peptide loaded cubosomes will enable the design of potent and targeted antibiotic therapies.
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Affiliation(s)
- Thomas G Meikle
- RMIT University, School of Science, College of Science Engineering and Health, 124 La Trobe Street, Melbourne, Victoria 3000, Australia
| | - Durga Dharmadana
- RMIT University, School of Science, College of Science Engineering and Health, 124 La Trobe Street, Melbourne, Victoria 3000, Australia
| | - Søren V Hoffmann
- ISA, Department of Physics and Astronomy, Aarhus University, Ny Munkegade 120, DK-8000 Aarhus C, Denmark
| | - Nykola C Jones
- ISA, Department of Physics and Astronomy, Aarhus University, Ny Munkegade 120, DK-8000 Aarhus C, Denmark
| | - Calum J Drummond
- RMIT University, School of Science, College of Science Engineering and Health, 124 La Trobe Street, Melbourne, Victoria 3000, Australia
| | - Charlotte E Conn
- RMIT University, School of Science, College of Science Engineering and Health, 124 La Trobe Street, Melbourne, Victoria 3000, Australia.
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15
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Lipid-Nucleic Acid Complexes: Physicochemical Aspects and Prospects for Cancer Treatment. Molecules 2020; 25:molecules25215006. [PMID: 33126767 PMCID: PMC7662579 DOI: 10.3390/molecules25215006] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2020] [Revised: 10/26/2020] [Accepted: 10/27/2020] [Indexed: 12/11/2022] Open
Abstract
Cancer is an extremely complex disease, typically caused by mutations in cancer-critical genes. By delivering therapeutic nucleic acids (NAs) to patients, gene therapy offers the possibility to supplement, repair or silence such faulty genes or to stimulate their immune system to fight the disease. While the challenges of gene therapy for cancer are significant, the latter approach (a type of immunotherapy) starts showing promising results in early-stage clinical trials. One important advantage of NA-based cancer therapies over synthetic drugs and protein treatments is the prospect of a more universal approach to designing therapies. Designing NAs with different sequences, for different targets, can be achieved by using the same technologies. This versatility and scalability of NA drug design and production on demand open the way for more efficient, affordable and personalized cancer treatments in the future. However, the delivery of exogenous therapeutic NAs into the patients’ targeted cells is also challenging. Membrane-type lipids exhibiting permanent or transient cationic character have been shown to associate with NAs (anionic), forming nanosized lipid-NA complexes. These complexes form a wide variety of nanostructures, depending on the global formulation composition and properties of the lipids and NAs. Importantly, these different lipid-NA nanostructures interact with cells via different mechanisms and their therapeutic potential can be optimized to promising levels in vitro. The complexes are also highly customizable in terms of surface charge and functionalization to allow a wide range of targeting and smart-release properties. Most importantly, these synthetic particles offer possibilities for scaling-up and affordability for the population at large. Hence, the versatility and scalability of these particles seem ideal to accommodate the versatility that NA therapies offer. While in vivo efficiency of lipid-NA complexes is still poor in most cases, the advances achieved in the last three decades are significant and very recently a lipid-based gene therapy medicine was approved for the first time (for treatment of hereditary transthyretin amyloidosis). Although the path to achieve efficient NA-delivery in cancer therapy is still long and tenuous, these advances set a new hope for more treatments in the future. In this review, we attempt to cover the most important biophysical and physicochemical aspects of non-viral lipid-based gene therapy formulations, with a perspective on future cancer treatments in mind.
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16
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Ramalheiro A, Paris JL, Silva BFB, Pires LR. Rapidly dissolving microneedles for the delivery of cubosome-like liquid crystalline nanoparticles with sustained release of rapamycin. Int J Pharm 2020; 591:119942. [PMID: 33039495 DOI: 10.1016/j.ijpharm.2020.119942] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2020] [Revised: 09/15/2020] [Accepted: 09/28/2020] [Indexed: 12/15/2022]
Abstract
In this study, we developed a system for the transdermal delivery and controlled release of the hydrophobic immunosuppressive drug rapamycin, foreseeing an application in psoriasis treatment. To do so, rapamycin was encapsulated in phytantriol-based cubosome-like liquid crystalline nanoparticles stabilized with pluronic F127. The final mass percent composition of the lipid nanoparticles was 0.25% phytantriol, 0.1% pluronic F127, 4.75% ethanol and 94.9% water. These particles showed a rapamycin encapsulation efficiency above 95% and a sustained in vitrodrug release profile throughout 14 days. Subsequently the rapamycin-carrying particles were incorporated into rapidly dissolving microneedle patches composed of a polymeric matrix of poly(vinylpyrrolidone) and poly(vinyl alcohol). Confocal microscopy allowed to infer the preferential distribution of the cubosome-like particles at the tip and baseplate of the microneedles. The fabricated microneedles showed successful piercing and deposition of the loaded cubosome-like particles on a skin-mimicking agarose gel. Finally, the rapamycin-loaded cubosome-like particles showed antiproliferative activity in natural killer cells in vitro. The results here presented show the potential of the developed system to deliver cubosome-like particles into the skin and promote the sustained release of rapamycin in the context of immunomodulation.
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Affiliation(s)
- Ana Ramalheiro
- International Iberian Nanotechnology Laboratory (INL), Av. Mestre José Veiga s/n, 4715-330 Braga, Portugal; Instituto Superior Técnico, Lisboa, Portugal
| | - Juan L Paris
- International Iberian Nanotechnology Laboratory (INL), Av. Mestre José Veiga s/n, 4715-330 Braga, Portugal
| | - Bruno F B Silva
- International Iberian Nanotechnology Laboratory (INL), Av. Mestre José Veiga s/n, 4715-330 Braga, Portugal.
| | - Liliana R Pires
- International Iberian Nanotechnology Laboratory (INL), Av. Mestre José Veiga s/n, 4715-330 Braga, Portugal.
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17
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See GL, Arce F, Dahlizar S, Okada A, Fadli MFBM, Hijikuro I, Itakura S, Katakura M, Todo H, Sugibayashi K. Enhanced nose-to-brain delivery of tranilast using liquid crystal formulations. J Control Release 2020; 325:1-9. [PMID: 32598958 DOI: 10.1016/j.jconrel.2020.06.028] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2020] [Revised: 05/23/2020] [Accepted: 06/23/2020] [Indexed: 10/24/2022]
Abstract
Intranasal administration is poised as a competent method in delivering drugs to the brain, because the nasal route has a direct link with the central nervous system bypassing the formidable blood-brain barrier. C17-monoglycerol ester (MGE) and glyceryl monooleate (GMO) as liquid crystal (LC)-forming lipids possess desirable formulation characteristics as drug carriers for intranasally administered drugs. This study investigated the effect of LC formulations on the pharmacokinetics of tranilast (TL), a lipophilic model drug, and its distribution in the therapeutic target regions of the brain in rats. The anatomical biodistribution of LC formulations was monitored using micro-computed tomography tandem in vivo imaging systems. MGE and GMO effectively formed LC with suitable particle size, zeta potential, and viscosity supporting the delivery of TL to the brain. MGE and GMO LC formulations enhanced brain uptake by 10- to 12-fold and 2- to 2.4- fold, respectively, compared with TL solution. The olfactory bulb had the highest TL concentration and fluorescent signals among all the brain regions, indicating a direct nose-to-brain delivery pathway of LC formulations. LC-forming lipids, MGE and GMO, are potential biomaterials in formulations intended for intranasal administration.
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Affiliation(s)
- Gerard Lee See
- Graduate School of Pharmaceutical Sciences, Josai University, Saitama, Japan; Department of Pharmacy, School of Health Care Professions, University of San Carlos, Cebu, the Philippines
| | - Florencio Arce
- Graduate School of Pharmaceutical Sciences, Josai University, Saitama, Japan; Department of Pharmacy, School of Health Care Professions, University of San Carlos, Cebu, the Philippines
| | - Sabrina Dahlizar
- Graduate School of Pharmaceutical Sciences, Josai University, Saitama, Japan; Department of Pharmacy, Faculty of Health Science, Syarif Hidayatullah State Islamic University Jakarta, Banten, Indonesia
| | - Akie Okada
- Graduate School of Pharmaceutical Sciences, Josai University, Saitama, Japan
| | | | - Ichiro Hijikuro
- Farnex Inc., Tokyo Institute of Technology, Yokohama Venture Plaza, Nagatsuta-cho, Midori-ku, Yokohama, Japan
| | - Shoko Itakura
- Graduate School of Pharmaceutical Sciences, Josai University, Saitama, Japan; School of Pharmacy and Pharmaceutical Sciences, Josai University, Saitama, Japan
| | - Masanori Katakura
- Graduate School of Pharmaceutical Sciences, Josai University, Saitama, Japan; School of Pharmacy and Pharmaceutical Sciences, Josai University, Saitama, Japan
| | - Hiroaki Todo
- Graduate School of Pharmaceutical Sciences, Josai University, Saitama, Japan; School of Pharmacy and Pharmaceutical Sciences, Josai University, Saitama, Japan
| | - Kenji Sugibayashi
- Graduate School of Pharmaceutical Sciences, Josai University, Saitama, Japan; School of Pharmacy and Pharmaceutical Sciences, Josai University, Saitama, Japan.
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18
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Dima C, Assadpour E, Dima S, Jafari SM. Bioavailability of nutraceuticals: Role of the food matrix, processing conditions, the gastrointestinal tract, and nanodelivery systems. Compr Rev Food Sci Food Saf 2020; 19:954-994. [DOI: 10.1111/1541-4337.12547] [Citation(s) in RCA: 96] [Impact Index Per Article: 24.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2019] [Revised: 01/07/2020] [Accepted: 01/24/2020] [Indexed: 12/13/2022]
Affiliation(s)
- Cristian Dima
- Faculty of Food Science and Engineering“Dunarea de Jos” University of Galati Galati Romania
| | - Elham Assadpour
- Department of Food Materials and Process Design EngineeringGorgan University of Agricultural Sciences and Natural Resources Gorgan Iran
| | - Stefan Dima
- Faculty of Science and Environment“Dunarea de Jos” University of Galati Galati Romania
| | - Seid Mahdi Jafari
- Department of Food Materials and Process Design EngineeringGorgan University of Agricultural Sciences and Natural Resources Gorgan Iran
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19
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Mendozza M, Caselli L, Salvatore A, Montis C, Berti D. Nanoparticles and organized lipid assemblies: from interaction to design of hybrid soft devices. SOFT MATTER 2019; 15:8951-8970. [PMID: 31680131 DOI: 10.1039/c9sm01601e] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
This contribution reviews the state of art on hybrid soft matter assemblies composed of inorganic nanoparticles (NP) and lamellar or non-lamellar lipid bilayers. After a short outline of the relevant energetic contributions, we address the interaction of NPs with synthetic lamellar bilayers, meant as cell membrane mimics. We then review the design of hybrid nanostructured materials composed of lipid bilayers and some classes of inorganic NPs, with particular emphasis on the effects on the amphiphilic phase diagram and on the additional properties contributed by the NPs. Then, we present the latest developments on the use of lipid bilayers as coating agents for inorganic NPs. Finally, we remark on the main achievements of the last years and our vision for the development of the field.
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Affiliation(s)
- Marco Mendozza
- Department of Chemistry "Ugo Schiff", University of Florence, and CSGI (Italian Center for Colloid and Surface Science, Via della Lastruccia 3, Sesto Fiorentino, 50019 Firenze, Italy.
| | - Lucrezia Caselli
- Department of Chemistry "Ugo Schiff", University of Florence, and CSGI (Italian Center for Colloid and Surface Science, Via della Lastruccia 3, Sesto Fiorentino, 50019 Firenze, Italy.
| | - Annalisa Salvatore
- Department of Chemistry "Ugo Schiff", University of Florence, and CSGI (Italian Center for Colloid and Surface Science, Via della Lastruccia 3, Sesto Fiorentino, 50019 Firenze, Italy.
| | - Costanza Montis
- Department of Chemistry "Ugo Schiff", University of Florence, and CSGI (Italian Center for Colloid and Surface Science, Via della Lastruccia 3, Sesto Fiorentino, 50019 Firenze, Italy.
| | - Debora Berti
- Department of Chemistry "Ugo Schiff", University of Florence, and CSGI (Italian Center for Colloid and Surface Science, Via della Lastruccia 3, Sesto Fiorentino, 50019 Firenze, Italy.
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20
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Dyett BP, Yu H, Strachan J, Drummond CJ, Conn CE. Fusion dynamics of cubosome nanocarriers with model cell membranes. Nat Commun 2019; 10:4492. [PMID: 31582802 PMCID: PMC6776645 DOI: 10.1038/s41467-019-12508-8] [Citation(s) in RCA: 64] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2019] [Accepted: 09/12/2019] [Indexed: 12/24/2022] Open
Abstract
Drug delivery with nanocarriers relies on the interaction of individual nanocarriers with the cell surface. For lipid-based NCs, this interaction uniquely involves a process of membrane fusion between the lipid bilayer that makes up the NC and the cell membrane. Cubosomes have emerged as promising fusogenic NCs, however their individual interactions had not yet been directly observed due to difficulties in achieving adequate resolution or disentangling multiple interactions with common characterization techniques. Moreover, many studies on these interactions have been performed under static conditions which may not mimic the actual transport of NCs. Herein we have observed fusion of lipid cubosome NCs with lipid bilayers under flow. Total internal reflection microscopy has allowed visualisation of the fusion event which was sensitive to the lipid compositions and rationalized by lipid diffusion. The fusion event in supported lipid bilayers has been compared with those in cells, revealing a distinct similarity in kinetics.
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Affiliation(s)
- Brendan P Dyett
- School of Science, College of Science, Engineering and Health, RMIT University, Melbourne, Victoria, Australia
| | - Haitao Yu
- School of Science, College of Science, Engineering and Health, RMIT University, Melbourne, Victoria, Australia
| | - Jamie Strachan
- School of Science, College of Science, Engineering and Health, RMIT University, Melbourne, Victoria, Australia
| | - Calum J Drummond
- School of Science, College of Science, Engineering and Health, RMIT University, Melbourne, Victoria, Australia.
| | - Charlotte E Conn
- School of Science, College of Science, Engineering and Health, RMIT University, Melbourne, Victoria, Australia.
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21
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Valldeperas M, Dabkowska AP, Pálsson GK, Rogers S, Mahmoudi N, Carnerup A, Barauskas J, Nylander T. Interfacial properties of lipid sponge-like nanoparticles and the role of stabilizer on particle structure and surface interactions. SOFT MATTER 2019; 15:2178-2189. [PMID: 30742188 DOI: 10.1039/c8sm02634c] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
The advantage of using nonlamellar lipid liquid crystalline phases has been demonstrated in many applications, such as drug delivery, protein encapsulation and crystallisation. We have recently reported that a mixture of mono- and diglycerides is able to form sponge-like nanoparticles (L3-NPs) with large enough aqueous pores to encapsulate macromolecules such as proteins. Here we use small angle neutron scattering (SANS) to reveal morphology, structural and chemical composition of these polysorbate 80 (P80) stabilized sponge phase nanoparticles, not previously known. Our results suggest that L3-NPs have a core-shell sphere structure, with a shell rich in P80. It was also found that even if P80 is mostly located on the surface, it also contributes to the formation of the inner sponge phase structure. An important aspect for the application and colloidal stability of these particles is their interfacial properties. Therefore, the interfacial behaviour of the nanoparticles on hydrophilic silica was revealed by Quartz crystal microbalance with dissipation (QCM-D) and neutron reflectivity (NR). Adsorption experiments reveal the formation of a thin lipid layer, with the dimension corresponding to a lipid bilayer after L3-NPs are in contact with hydrophilic silica. This suggests that the diglycerol monoleate/Capmul GMO-50/P80 particles reorganize themselves on this surface, probably due to interactions between P80 head group and SiO2.
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Affiliation(s)
- Maria Valldeperas
- Physical Chemistry, Department Chemistry, Lund University, Lund, Sweden.
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22
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Salentinig S, Zabara M, Parisse P, Amenitsch H. Formation of highly ordered liquid crystalline coatings – an in situ GISAXS study. Phys Chem Chem Phys 2018; 20:21903-21909. [PMID: 30123907 DOI: 10.1039/c8cp03205j] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In situ GISAXS and AFM reveal the formation of highly geometrically organized glycerol monooleate based liquid crystalline films on silicon wafers.
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Affiliation(s)
- S. Salentinig
- Laboratory for Biointerfaces
- Department Materials Meet Life
- Empa
- Swiss Federal Laboratories for Materials Science and Technology
- 9014 St. Gallen
| | - Mahsa Zabara
- Laboratory for Biointerfaces
- Department Materials Meet Life
- Empa
- Swiss Federal Laboratories for Materials Science and Technology
- 9014 St. Gallen
| | - P. Parisse
- Elettra Sincrotrone Trieste S.C.p.A
- 34149-Basovizza
- Italy
| | - H. Amenitsch
- Institute for Inorganic Chemistry
- Graz University of Technology
- Stremayergasse 9/V
- 8010 Graz
- Austria
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23
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Abstract
In vivo imaging, which enables us to peer deeply within living subjects, is producing tremendous opportunities both for clinical diagnostics and as a research tool. Contrast material is often required to clearly visualize the functional architecture of physiological structures. Recent advances in nanomaterials are becoming pivotal to generate the high-resolution, high-contrast images needed for accurate, precision diagnostics. Nanomaterials are playing major roles in imaging by delivering large imaging payloads, yielding improved sensitivity, multiplexing capacity, and modularity of design. Indeed, for several imaging modalities, nanomaterials are now not simply ancillary contrast entities, but are instead the original and sole source of image signal that make possible the modality's existence. We address the physicochemical makeup/design of nanomaterials through the lens of the physical properties that produce contrast signal for the cognate imaging modality-we stratify nanomaterials on the basis of their (i) magnetic, (ii) optical, (iii) acoustic, and/or (iv) nuclear properties. We evaluate them for their ability to provide relevant information under preclinical and clinical circumstances, their in vivo safety profiles (which are being incorporated into their chemical design), their modularity in being fused to create multimodal nanomaterials (spanning multiple different physical imaging modalities and therapeutic/theranostic capabilities), their key properties, and critically their likelihood to be clinically translated.
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Affiliation(s)
- Bryan Ronain Smith
- Stanford University , 3155 Porter Drive, #1214, Palo Alto, California 94304-5483, United States
| | - Sanjiv Sam Gambhir
- The James H. Clark Center , 318 Campus Drive, First Floor, E-150A, Stanford, California 94305-5427, United States
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24
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Dabkowska AP, Hirst C, Valldeperas M, Clifton LA, Montis C, Nöjd S, Gentile L, Wang M, Pálsson GK, Lages S, Berti D, Barauskas J, Nylander T. Temperature responsive lipid liquid crystal layers with embedded nanogels. Chem Commun (Camb) 2017; 53:1417-1420. [DOI: 10.1039/c6cc09426k] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Polymer nanogels are embedded within layers consisting of a nonlamellar liquid crystalline lipid phase to act as thermoresponsive controllers of layer compactness and hydration.
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25
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Karami Z, Hamidi M. Cubosomes: remarkable drug delivery potential. Drug Discov Today 2016; 21:789-801. [PMID: 26780385 DOI: 10.1016/j.drudis.2016.01.004] [Citation(s) in RCA: 176] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2015] [Revised: 12/14/2015] [Accepted: 01/11/2016] [Indexed: 12/12/2022]
Abstract
Cubosomes are nanostructured liquid crystalline particles, made of certain amphiphilic lipids in definite proportions, known as biocompatible carriers in drug delivery. Cubosomes comprise curved bicontinuous lipid bilayers that are organized in three dimensions as honeycombed structures and divided into two internal aqueous channels that can be exploited by various bioactive ingredients, such as chemical drugs, peptides and proteins. Owing to unique properties such as thermodynamic stability, bioadhesion, the ability of encapsulating hydrophilic, hydrophobic and amphiphilic substances, and the potential for controlled release through functionalization, cubosomes are regarded as promising vehicles for different routes of administration. Based on the most recent reports, this review introduces cubosomes focusing on their structure, preparation methods, mechanism of release and potential routes of administration.
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Affiliation(s)
- Zahra Karami
- Zanjan Pharmaceutical Nanotechnology Research Center (ZPNRC), Department of Pharmaceutical Nanotechnology, School of Pharmacy, Zanjan University of Medical Sciences, 45139-56184 Zanjan, Iran
| | - Mehrdad Hamidi
- Zanjan Pharmaceutical Nanotechnology Research Center (ZPNRC), Department of Pharmaceutical Nanotechnology, School of Pharmacy, Zanjan University of Medical Sciences, 45139-56184 Zanjan, Iran.
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26
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Joyce P, Barnes TJ, Boyd BJ, Prestidge CA. Porous nanostructure controls kinetics, disposition and self-assembly structure of lipid digestion products. RSC Adv 2016. [DOI: 10.1039/c6ra16028j] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Combining 1H NMR and sSAXS to discriminate the speciation and structure evolution of lipolysis products for submicron lipid droplets and lipid loaded in porous silica particles.
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Affiliation(s)
- Paul Joyce
- School of Pharmacy and Medical Sciences
- University of South Australia
- City East Campus
- Adelaide
- Australia
| | - Timothy J. Barnes
- School of Pharmacy and Medical Sciences
- University of South Australia
- City East Campus
- Adelaide
- Australia
| | - Ben J. Boyd
- Drug Delivery, Disposition and Dynamics
- Monash Institute of Pharmaceutical Sciences
- Monash University
- Parkville Campus
- Parkville
| | - Clive A. Prestidge
- School of Pharmacy and Medical Sciences
- University of South Australia
- City East Campus
- Adelaide
- Australia
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