1
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Torabi M, Nazaruk E, Bilewicz R. Alignment of lyotropic liquid crystals using magnetic nanoparticles improves ionic transport through built-in peptide ion channels. J Colloid Interface Sci 2024; 674:982-992. [PMID: 38964002 DOI: 10.1016/j.jcis.2024.06.227] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2024] [Revised: 06/28/2024] [Accepted: 06/28/2024] [Indexed: 07/06/2024]
Abstract
HYPOTHESIS We hypothesize that simultaneous incorporation of ion channel peptides (in this case, potassium channel as a model) and hydrophobic magnetite Fe3O4 nanoparticles (hFe3O4NPs) within lipidic hexagonal mesophases, and aligning them using an external magnetic field can significantly enhance ion transport through lipid membranes. EXPERIMENTS In this study, we successfully characterized the incorporation of gramicidin membrane ion channels and hFe3O4NPs in the lipidic hexagonal structure using SAXS and cryo-TEM methods. Additionally, we thoroughly investigated the conductive characteristics of freestanding films of lipidic hexagonal mesophases, both with and without gramicidin potassium channels, utilizing a range of electrochemical techniques, including impedance spectroscopy, normal pulse voltammetry, and chronoamperometry. FINDINGS Our research reveals a state-of-the-art breakthrough in enhancing ion transport in lyotropic liquid crystals as matrices for integral proteins and peptides. We demonstrate the remarkable efficacy of membranes composed of hexagonal lipid mesophases embedded with K+ transporting peptides. This enhancement is achieved through doping with hFe3O4NPs and exposure to a magnetic field. We investigate the intricate interplay between the conductive properties of the lipidic hexagonal structure, hFe3O4NPs, gramicidin incorporation, and the influence of Ca2+ on K+ channels. Furthermore, our study unveils a new direction in ion channel studies and biomimetic membrane investigations, presenting a versatile model for biomimetic membranes with unprecedented ion transport capabilities under an appropriately oriented magnetic field. These findings hold promise for advancing membrane technology and various biotechnological and biomedical applications of membrane proteins.
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Affiliation(s)
- Mostafa Torabi
- Faculty of Chemistry, University of Warsaw, Pasteura 1, 02093 Warsaw, Poland
| | - Ewa Nazaruk
- Faculty of Chemistry, University of Warsaw, Pasteura 1, 02093 Warsaw, Poland
| | - Renata Bilewicz
- Faculty of Chemistry, University of Warsaw, Pasteura 1, 02093 Warsaw, Poland; Faculty of Chemistry, Biological and Chemical Research Centre, University of Warsaw, Żwirki i Wigury 101, 02089 Warsaw, Poland.
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2
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Attri N, Das S, Banerjee J, Shamsuddin SH, Dash SK, Pramanik A. Liposomes to Cubosomes: The Evolution of Lipidic Nanocarriers and Their Cutting-Edge Biomedical Applications. ACS APPLIED BIO MATERIALS 2024; 7:2677-2694. [PMID: 38613498 PMCID: PMC11110070 DOI: 10.1021/acsabm.4c00153] [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: 02/01/2024] [Revised: 04/08/2024] [Accepted: 04/09/2024] [Indexed: 04/15/2024]
Abstract
Lipidic nanoparticles have undergone extensive research toward the exploration of their diverse therapeutic applications. Although several liposomal formulations are in the clinic (e.g., DOXIL) for cancer therapy, there are many challenges associated with traditional liposomes. To address these issues, modifications in liposomal structure and further functionalization are desirable, leading to the emergence of solid lipid nanoparticles and the more recent liquid lipid nanoparticles. In this context, "cubosomes", third-generation lipidic nanocarriers, have attracted significant attention due to their numerous advantages, including their porous structure, structural adaptability, high encapsulation efficiency resulting from their extensive internal surface area, enhanced stability, and biocompatibility. Cubosomes offer the potential for both enhanced cellular uptake and controlled release of encapsulated payloads. Beyond cancer therapy, cubosomes have demonstrated effectiveness in wound healing, antibacterial treatments, and various dermatological applications. In this review, the authors provide an overview of the evolution of lipidic nanocarriers, spanning from conventional liposomes to solid lipid nanoparticles, with a special emphasis on the development and application of cubosomes. Additionally, it delves into recent applications and preclinical trials associated with cubosome formulations, which could be of significant interest to readers from backgrounds in nanomedicine and clinicians.
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Affiliation(s)
- Nishtha Attri
- Amity
Institute of Biotechnology, Amity University, Noida 201301, India
| | - Swarnali Das
- Department
of Physiology, University of Gour Banga, Malda 732103, West Bengal, India
| | - Jhimli Banerjee
- Department
of Physiology, University of Gour Banga, Malda 732103, West Bengal, India
| | - Shazana H. Shamsuddin
- Department
of Pathology, School of Medical Sciences, Health Campus, Universiti Sains Malaysia, Kubang Kerian 16150, Kelantan, Malaysia
| | - Sandeep Kumar Dash
- Department
of Physiology, University of Gour Banga, Malda 732103, West Bengal, India
| | - Arindam Pramanik
- Amity
Institute of Biotechnology, Amity University, Noida 201301, India
- School
of Medicine, University of Leeds, Leeds LS53RL, United Kingdom
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3
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El Mohamad M, Han Q, Clulow AJ, Cao C, Safdar A, Stenzel M, Drummond CJ, Greaves TL, Zhai J. Regulating the structural polymorphism and protein corona composition of phytantriol-based lipid nanoparticles using choline ionic liquids. J Colloid Interface Sci 2024; 657:841-852. [PMID: 38091907 DOI: 10.1016/j.jcis.2023.12.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Revised: 11/29/2023] [Accepted: 12/01/2023] [Indexed: 01/02/2024]
Abstract
Lipid-based lyotropic liquid crystalline nanoparticles (LCNPs) face stability challenges in biological fluids during clinical translation. Ionic Liquids (ILs) have emerged as effective solvent additives for tuning the structure of LCNP's and enhancing their stability. We investigated the effect of a library of 21 choline-based biocompatible ILs with 9 amino acid anions as well as 10 other organic/inorganic anions during the preparation of phytantriol (PHY)-based LCNPs, followed by incubation in human serum and serum proteins. Small angle X-ray scattering (SAXS) results show that the phase behaviour of the LCNPs depends on the IL concentration and anion structure. Incubation with human serum led to a phase transition from the inverse bicontinuous cubic (Q2) to the inverse hexagonal (H2) mesophase, influenced by the specific IL present. Liquid chromatography-mass spectrometry (LC-MS) and proteomics analysis of selected samples, including PHY control and those with choline glutamate, choline hexanoate, and choline geranate, identified abundant proteins in the protein corona, including albumin, apolipoproteins, and serotransferrin. The composition of the protein corona varied among samples, shedding light on the intricate interplay between ILs, internal structure and surface chemistry of LCNPs, and biological fluids.
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Affiliation(s)
- Mohamad El Mohamad
- School of Science, STEM College, RMIT University, 124 La Trobe Street, Melbourne, VIC 3000, Australia
| | - Qi Han
- School of Science, STEM College, RMIT University, 124 La Trobe Street, Melbourne, VIC 3000, Australia
| | - Andrew J Clulow
- Australian Synchrotron, ANSTO, 800 Blackburn Road, Clayton, VIC 3168, Australia
| | - Cheng Cao
- Centre for Advanced Macromolecular Design, School of Chemistry, University of New South Wales, Sydney, NSW 2052, Australia
| | - Aneeqa Safdar
- Centre for Advanced Macromolecular Design, School of Chemistry, University of New South Wales, Sydney, NSW 2052, Australia
| | - Martina Stenzel
- Centre for Advanced Macromolecular Design, School of Chemistry, University of New South Wales, Sydney, NSW 2052, Australia
| | - Calum J Drummond
- School of Science, STEM College, RMIT University, 124 La Trobe Street, Melbourne, VIC 3000, Australia.
| | - Tamar L Greaves
- School of Science, STEM College, RMIT University, 124 La Trobe Street, Melbourne, VIC 3000, Australia.
| | - Jiali Zhai
- School of Science, STEM College, RMIT University, 124 La Trobe Street, Melbourne, VIC 3000, Australia.
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4
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Herianto S, Subramani B, Chen BR, Chen CS. Recent advances in liposome development for studying protein-lipid interactions. Crit Rev Biotechnol 2024; 44:1-14. [PMID: 36170980 DOI: 10.1080/07388551.2022.2111294] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2021] [Revised: 05/12/2022] [Accepted: 05/29/2022] [Indexed: 11/03/2022]
Abstract
Protein-lipid interactions are crucial for various cellular biological processes like intracellular signaling, membrane transport, and cytoskeletal dynamics. Therefore, studying these interactions is essential to understand and unravel their specific functions. Nevertheless, the interacting proteins of many lipids are poorly understood and still require systematic study. Liposomes are the most well-known and familiar biomimetic systems used to study protein-lipid interactions. Although liposomes have been widely used for studying protein-lipid interactions in classical methods such as the co-flotation assay (CFA), co-sedimentation assay (CSA), and flow cytometric assay (FCA), an overview of their current applications and developments in high-throughput methods is not yet available. Here, we summarize the liposome development in low and high-throughput methods to study protein-lipid interactions. Besides, a constructive comment for each platform is presented to stimulate the advancement of these technologies in the future.
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Affiliation(s)
- Samuel Herianto
- Chemical Biology and Molecular Biophysics, Taiwan International Graduate Program (TIGP), Academia Sinica, Taipei, Taiwan
- Institute of Chemistry, Academia Sinica, Taipei, Taiwan
- Department of Chemistry (Chemical Biology Division), College of Science, National Taiwan University, Taipei, Taiwan
- Department of Food Safety/Hygiene and Risk Management, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Boopathi Subramani
- Institute of Food Science and Technology, College of Bio-Resources and Agriculture, National Taiwan University, Taipei, Taiwan
- Department of Food Safety/Hygiene and Risk Management, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Bo-Ruei Chen
- Department of Food Safety/Hygiene and Risk Management, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Chien-Sheng Chen
- Department of Food Safety/Hygiene and Risk Management, College of Medicine, National Cheng Kung University, Tainan, Taiwan
- Institute of Basic Medical Sciences, College of Medicine, National Cheng Kung University, Tainan, Taiwan
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5
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Yu H, Palazzolo JS, Ju Y, Niego B, Pan S, Hagemeyer CE, Caruso F. Polyphenol-Functionalized Cubosomes as Thrombolytic Drug Carriers. Adv Healthc Mater 2022; 11:e2201151. [PMID: 36037807 DOI: 10.1002/adhm.202201151] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2022] [Revised: 08/03/2022] [Indexed: 01/28/2023]
Abstract
The safe administration of thrombolytic agents is a challenge for the treatment of acute thrombosis. Lipid-based nanoparticle drug delivery technologies present opportunities to overcome the existing clinical limitations and deliver thrombolytic therapy with enhanced therapeutic outcomes and safety. Herein, lipid cubosomes are examined as nanocarriers for the encapsulation of thrombolytic drugs. The lipid cubosomes are loaded with the thrombolytic drug urokinase-type plasminogen activator (uPA) and coated with a low-fouling peptide that is incorporated within a metal-phenolic network (MPN). The peptide-containing MPN (pep-MPN) coating inhibits the direct contact of uPA with the surrounding environment, as assessed by an in vitro plasminogen activation assay and an ex vivo whole blood clot degradation assay. The pep-MPN-coated cubosomes prepared with 22 wt% peptide demonstrate a cell membrane-dependent thrombolytic activity, which is attributed to their fusogenic lipid behavior. Moreover, compared with the uncoated lipid cubosomes, the uPA-loaded pep-MPN-coated cubosomes demonstrate significantly reduced nonspecific cell association (<10% of the uncoated cubosomes) in the whole blood assay, a prolonged circulating half-life, and reduced splenic uPA accumulation in mice. These studies confirm the preserved bioactivity and cell membrane-dependent release of uPA within pep-MPN-coated lipid cubosomes, highlighting their potential as a delivery vehicle for thrombolytic drugs.
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Affiliation(s)
- Haitao Yu
- Department of Chemical Engineering, The University of Melbourne, Parkville, Victoria, 3010, Australia
| | - Jason S Palazzolo
- NanoBiotechnology Laboratory, Australian Centre for Blood Diseases, Central Clinical School, Monash University, Melbourne, Victoria, 3004, Australia
| | - Yi Ju
- Department of Chemical Engineering, The University of Melbourne, Parkville, Victoria, 3010, Australia.,School of Health and Biomedical Sciences, RMIT University, Bundoora, Victoria, 3083, Australia
| | - Be'eri Niego
- NanoBiotechnology Laboratory, Australian Centre for Blood Diseases, Central Clinical School, Monash University, Melbourne, Victoria, 3004, Australia
| | - Shuaijun Pan
- Department of Chemical Engineering, The University of Melbourne, Parkville, Victoria, 3010, Australia
| | - Christoph E Hagemeyer
- NanoBiotechnology Laboratory, Australian Centre for Blood Diseases, Central Clinical School, Monash University, Melbourne, Victoria, 3004, Australia
| | - Frank Caruso
- Department of Chemical Engineering, The University of Melbourne, Parkville, Victoria, 3010, Australia
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6
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Lyotropic liquid crystalline nanoparticles: Scaffolds for delivery of myriad therapeutics and diagnostics. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.116919] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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7
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Reduction of enzymatic degradation of insulin via encapsulation in a lipidic bicontinuous cubic phase. J Colloid Interface Sci 2021; 592:135-144. [PMID: 33647562 DOI: 10.1016/j.jcis.2021.02.027] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2020] [Revised: 01/14/2021] [Accepted: 02/07/2021] [Indexed: 11/22/2022]
Abstract
Oral delivery of the protein drug insulin is not currently possible due to rapid degradation of the secondary structure in low pH conditions in the stomach and under the influence of digestive enzymes in the gastrointestinal tract. Effective oral delivery of insulin and other protein- or peptide-based drugs will, therefore, require encapsulation in a material or nanoparticle. Herein we investigate the ability of the lipid bicontinuous cubic phase formed by two lipids, monoolein (MO) and phytantriol (PT), to protect encapsulated insulin from degradation by the enzyme chymotrypsin, typically found in the small intestine. High encapsulation efficiency (>80%) was achieved in both lipid cubic phases with retention of the underlying cubic nanostructure. Release of insulin from the cubic matrix was shown to be diffusion-controlled; the release rate was dependent on the cubic nanostructure and consistent with measured diffusion coefficients for encapsulated insulin. Encapsulation was shown to significantly retard enzymatic degradation relative to that in water, with the protective effect lasting up to 2 h, exemplifying the potential of these materials to protect the encapsulated protein payload during oral delivery.
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Fotiadou R, Chatzikonstantinou AV, Hammami MA, Chalmpes N, Moschovas D, Spyrou K, Polydera AC, Avgeropoulos A, Gournis D, Stamatis H. Green Synthesized Magnetic Nanoparticles as Effective Nanosupport for the Immobilization of Lipase: Application for the Synthesis of Lipophenols. NANOMATERIALS (BASEL, SWITZERLAND) 2021; 11:458. [PMID: 33670153 PMCID: PMC7916844 DOI: 10.3390/nano11020458] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/19/2020] [Revised: 02/03/2021] [Accepted: 02/08/2021] [Indexed: 11/16/2022]
Abstract
In this work, hybrid zinc oxide-iron oxide (ZnOFe) magnetic nanoparticles were synthesized employing Olea europaea leaf aqueous extract as a reducing/chelating and capping medium. The resulting magnetic nanoparticles were characterized by basic spectroscopic and microscopic techniques, namely, X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), fourier-transform infrared (FTIR) and atomic force microscopy (AFM), exhibiting a spherical shape, average size of 15-17 nm, and a functionalized surface. Lipase from Thermomyces lanuginosus (TLL) was efficiently immobilized on the surface of ZnOFe nanoparticles through physical absorption. The activity of immobilized lipase was found to directly depend on the enzyme to support the mass ratio, and also demonstrated improved pH and temperature activity range compared to free lipase. Furthermore, the novel magnetic nanobiocatalyst (ZnOFe-TLL) was applied to the preparation of hydroxytyrosyl fatty acid esters, including derivatives with omega-3 fatty acids, in non-aqueous media. Conversion yields up to 90% were observed in non-polar solvents, including hydrophobic ionic liquids. Different factors affecting the biocatalyst performance were studied. ZnOFe-TLL was reutilized for eight subsequent cycles, exhibiting 90% remaining esterification activity (720 h of total operation at 50 °C). The green synthesized magnetic nanoparticles, reported here for the first time, are excellent candidates as nanosupports for the immobilization of enzymes with industrial interest, giving rise to nanobiocatalysts with elevated features.
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Affiliation(s)
- Renia Fotiadou
- Biotechnology Laboratory, Department of Biological Applications and Technologies, University of Ioannina, 45110 Ioannina, Greece; (R.F.); (A.V.C.); (A.C.P.)
| | - Alexandra V. Chatzikonstantinou
- Biotechnology Laboratory, Department of Biological Applications and Technologies, University of Ioannina, 45110 Ioannina, Greece; (R.F.); (A.V.C.); (A.C.P.)
| | - Mohamed Amen Hammami
- Department of Materials Science and Engineering, Cornell University, Ithaca, NY 14853, USA;
| | - Nikolaos Chalmpes
- Department of Materials Science and Engineering, University of Ioannina, 45110 Ioannina, Greece; (N.C.); (D.M.); (K.S.); (A.A.); (D.G.)
| | - Dimitrios Moschovas
- Department of Materials Science and Engineering, University of Ioannina, 45110 Ioannina, Greece; (N.C.); (D.M.); (K.S.); (A.A.); (D.G.)
| | - Konstantinos Spyrou
- Department of Materials Science and Engineering, University of Ioannina, 45110 Ioannina, Greece; (N.C.); (D.M.); (K.S.); (A.A.); (D.G.)
| | - Angeliki C. Polydera
- Biotechnology Laboratory, Department of Biological Applications and Technologies, University of Ioannina, 45110 Ioannina, Greece; (R.F.); (A.V.C.); (A.C.P.)
| | - Apostolos Avgeropoulos
- Department of Materials Science and Engineering, University of Ioannina, 45110 Ioannina, Greece; (N.C.); (D.M.); (K.S.); (A.A.); (D.G.)
| | - Dimitrios Gournis
- Department of Materials Science and Engineering, University of Ioannina, 45110 Ioannina, Greece; (N.C.); (D.M.); (K.S.); (A.A.); (D.G.)
| | - Haralambos Stamatis
- Biotechnology Laboratory, Department of Biological Applications and Technologies, University of Ioannina, 45110 Ioannina, Greece; (R.F.); (A.V.C.); (A.C.P.)
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9
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Liu Z, Yu L, Gu P, Bo R, Xu S, Wusiman A, Liu J, Hu Y, Wang D. Surface-Engineered Cubosomes Serve as a Novel Vaccine Adjuvant to Modulate Innate Immunity and Improve Adaptive Immunity in vivo. Int J Nanomedicine 2020; 15:8595-8608. [PMID: 33177820 PMCID: PMC7650836 DOI: 10.2147/ijn.s266165] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Accepted: 09/29/2020] [Indexed: 12/01/2022] Open
Abstract
Objective Recent studies have revealed the adjuvant activity of cubosomes and their potential utility as an antigen delivery system. In this study, to further enhance the adjuvant activity of cubosomes, two cationic polymers are modified on the surface of cubosomes. Methods Here, we exploit the effects of surface chemistry on the adjuvant activity of Ganoderma lucidum polysaccharide cubosomes (GLPC) by placing two kinds of molecules, that is, cetyltrimethylammonium bromide (CTAB) and poly(diallydimethyl ammonium chloride) (PDDAC), on their surface. Results CTAB- or PDDAC-modified GLPC were found to significantly promote humoral and cellular immune responses, as well as the proliferation of CD3+ CD4+ or CD3+ CD8+T cells through the powerful activation of dendritic cells (DCs). The enhanced immune responses of PDDAC-modified GLPC might be attributed to the maturation of DCs into draining lymph nodes and the activation of spleen and cytokines in serum. Conclusion PDDAC modification is beneficial for enhancing humoral and cellular immune response, suggesting that PDDAC-GLPC-OVA has the ability to be a potential adjuvant for vaccine.
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Affiliation(s)
- Zhenguang Liu
- Institute of Traditional Chinese Veterinary Medicine, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, People's Republic of China.,MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, People's Republic of China
| | - Lin Yu
- Institute of Traditional Chinese Veterinary Medicine, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, People's Republic of China.,MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, People's Republic of China
| | - Pengfei Gu
- Institute of Traditional Chinese Veterinary Medicine, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, People's Republic of China.,MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, People's Republic of China
| | - Ruonan Bo
- Institute of Traditional Chinese Veterinary Medicine, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, People's Republic of China.,MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, People's Republic of China
| | - Shuwen Xu
- Institute of Traditional Chinese Veterinary Medicine, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, People's Republic of China.,MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, People's Republic of China
| | - Adelijiang Wusiman
- Institute of Traditional Chinese Veterinary Medicine, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, People's Republic of China.,MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, People's Republic of China
| | - Jiaguo Liu
- Institute of Traditional Chinese Veterinary Medicine, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, People's Republic of China.,MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, People's Republic of China
| | - Yuanliang Hu
- Institute of Traditional Chinese Veterinary Medicine, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, People's Republic of China.,MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, People's Republic of China
| | - Deyun Wang
- Institute of Traditional Chinese Veterinary Medicine, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, People's Republic of China.,MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, People's Republic of China
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10
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Silvestrini AVP, Caron AL, Viegas J, Praça FG, Bentley MVLB. Advances in lyotropic liquid crystal systems for skin drug delivery. Expert Opin Drug Deliv 2020; 17:1781-1805. [DOI: 10.1080/17425247.2020.1819979] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
| | - Angelo Luis Caron
- School of Pharmaceutical Sciences of Ribeirao Preto, University of Sao Paulo, Ribeirão Preto, SP, Brazil
| | - Juliana Viegas
- School of Pharmaceutical Sciences of Ribeirao Preto, University of Sao Paulo, Ribeirão Preto, SP, Brazil
| | - Fabíola Garcia Praça
- School of Pharmaceutical Sciences of Ribeirao Preto, University of Sao Paulo, Ribeirão Preto, SP, Brazil
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11
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Radbeh Z, Asefi N, Hamishehkar H, Roufegarinejad L, Pezeshki A. Novel carriers ensuring enhanced anti-cancer activity of Cornus mas (cornelian cherry) bioactive compounds. Biomed Pharmacother 2020; 125:109906. [PMID: 32106382 DOI: 10.1016/j.biopha.2020.109906] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2019] [Revised: 01/07/2020] [Accepted: 01/12/2020] [Indexed: 12/21/2022] Open
Abstract
Cornusmas' bioactive compounds are powerful antioxidants. In this study, we evaluated the antioxidant activity of the encapsulated bioactive compounds of Cornus mas extract (CME) and its release in semi digestive condition via enteric coated nanocarriers (NCs). The two forms of CME, encapsulated into enteric coated nanocarriers (CME-NCs) and free CME, were studied to determine the effect of encapsulation on the stability of antioxidants. Then, their effect on cell cycle, cell viability and apoptosis of cancer cells were studied. The characterization analysis reported the mean particle size and zeta potential value of NCs equal to 22.7 ± 6.58 nm and -16 ± 5 mV. The results showed that CME-NCs could improve IC50 value 1.33 and 1.47 times more than the free CME after 24 and 48 h of incubation. These findings confirmed that CME-NCs could stop the cells proliferation in G1 phase, and caused apoptosis in cancer cell line HT-29.
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Affiliation(s)
- Zarrin Radbeh
- Department of Food Science and Technology, Tabriz Branch, Islamic Azad University, Tabriz, Iran
| | - Narmela Asefi
- Department of Food Science and Technology, Tabriz Branch, Islamic Azad University, Tabriz, Iran.
| | - Hamed Hamishehkar
- Drug Applied Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Leila Roufegarinejad
- Department of Food Science and Technology, Tabriz Branch, Islamic Azad University, Tabriz, Iran
| | - Akram Pezeshki
- Department of Food Science and Technology, Faculty of Agriculture, University of Tabriz, Tabriz, Iran
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12
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Insight into the binding and conformational changes of hemoglobin/lysozyme with bimetallic alloy nanoparticles using various spectroscopic approaches. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2019.111747] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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13
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Li Y, Angelova A, Hu F, Garamus VM, Peng C, Li N, Liu J, Liu D, Zou A. pH Responsiveness of Hexosomes and Cubosomes for Combined Delivery of Brucea javanica Oil and Doxorubicin. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:14532-14542. [PMID: 31635451 DOI: 10.1021/acs.langmuir.9b02257] [Citation(s) in RCA: 71] [Impact Index Per Article: 14.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
We report pH-responsive liquid crystalline lipid nanoparticles, which are dual-loaded by Brucea javanica oil (BJO) and doxorubicin hydrochloride (DOX) and display a pH-induced inverted hexagonal (pH = 7.4) to cubic (pH = 6.8) to emulsified microemulsion (pH = 5.3) phase transition with a therapeutic application in cancer inhibition. BJO is a traditional herbal medicine that strongly inhibits the proliferation and metastasis of various cancers. Doxorubicin is an antitumor drug, which prevents DNA replication and hampers protein synthesis through intercalation between the base pairs of the DNA helices. Its dose-dependent cardiotoxicity imposes the need for safe delivery carriers. Here, pH-induced changes in the structural and interfacial properties of designed multicomponent drug delivery (monoolein-oleic acid-BJO-DOX) systems are determined by synchrotron small-angle X-ray scattering and the Langmuir film balance technique. The nanocarrier assemblies display good physical stability in the studied pH range and adequate particle sizes and ζ-potentials. Their interaction with model lipid membrane interfaces is enhanced under acidic pH conditions, which mimic the microenvironment around tumor cells. In vitro cytotoxicity and apoptosis studies with BJO-DOX dual-loaded pH-switchable liquid crystalline nanoparticles are performed on the human breast cancer Michigan Cancer Foundation-7 (MCF-7) cell line and MCF-7 cells with doxorubicin resistance (MCF-7/DOX), respectively. The obtained pH-sensitive nanomedicines exhibit enhanced antitumor efficacy. The performed preliminary studies suggest a potential reversal of the resistance of the MCF-7/DOX cells to DOX. These results highlight the necessity for further understanding the link between the established pH-dependent drug release profiles of the nanocarriers and the role of their pH-switchable inverted hexagonal, bicontinuous cubic, and emulsified microemulsion inner organizations for therapeutic outcomes.
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Affiliation(s)
- Yawen Li
- Shanghai Key Laboratory of Functional Materials Chemistry, State Key Laboratory of Bioreactor Engineering and Institute of Applied Chemistry, School of Chemistry and Molecular Engineering , East China University of Science and Technology , Shanghai 200237 , P. R. China
| | - Angelina Angelova
- Institut Galien Paris-Sud , CNRS UMR 8612, Univ. Paris-Sud, Université Paris-Saclay, LabEx LERMIT , F-92296 Châtenay-Malabry cedex, France
| | - Fangzhou Hu
- Shanghai Key Laboratory of Functional Materials Chemistry, State Key Laboratory of Bioreactor Engineering and Institute of Applied Chemistry, School of Chemistry and Molecular Engineering , East China University of Science and Technology , Shanghai 200237 , P. R. China
| | - Vasil M Garamus
- Helmholtz-Zentrum Geesthacht, Centre for Materials and Coastal Research , D-21502 Geesthacht , Germany
| | - Changjun Peng
- Shanghai Key Laboratory of Functional Materials Chemistry, State Key Laboratory of Bioreactor Engineering and Institute of Applied Chemistry, School of Chemistry and Molecular Engineering , East China University of Science and Technology , Shanghai 200237 , P. R. China
| | - Na Li
- National Center for Protein Science Shanghai and Shanghai Institute of Biochemistry and Cell Biology , Shanghai 200237 , P. R. China
| | - Jianwen Liu
- Shanghai Key Laboratory of Functional Materials Chemistry, State Key Laboratory of Bioreactor Engineering and Institute of Applied Chemistry, School of Chemistry and Molecular Engineering , East China University of Science and Technology , Shanghai 200237 , P. R. China
| | - Dan Liu
- Shanghai Key Laboratory of Functional Materials Chemistry, State Key Laboratory of Bioreactor Engineering and Institute of Applied Chemistry, School of Chemistry and Molecular Engineering , East China University of Science and Technology , Shanghai 200237 , P. R. China
| | - Aihua Zou
- Shanghai Key Laboratory of Functional Materials Chemistry, State Key Laboratory of Bioreactor Engineering and Institute of Applied Chemistry, School of Chemistry and Molecular Engineering , East China University of Science and Technology , Shanghai 200237 , P. R. China
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14
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Zhai J, Fong C, Tran N, Drummond CJ. Non-Lamellar Lyotropic Liquid Crystalline Lipid Nanoparticles for the Next Generation of Nanomedicine. ACS NANO 2019; 13:6178-6206. [PMID: 31082192 DOI: 10.1021/acsnano.8b07961] [Citation(s) in RCA: 153] [Impact Index Per Article: 30.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Nonlamellar lyotropic liquid crystalline (LLC) lipid nanomaterials have emerged as a promising class of advanced materials for the next generation of nanomedicine, comprising mainly of amphiphilic lipids and functional additives self-assembling into two- and three-dimensional, inverse hexagonal, and cubic nanostructures. In particular, the lyotropic liquid crystalline lipid nanoparticles (LCNPs) have received great interest as nanocarriers for a variety of hydrophobic and hydrophilic small molecule drugs, peptides, proteins, siRNAs, DNAs, and imaging agents. Within this space, there has been a tremendous amount of effort over the last two decades elucidating the self-assembly behavior and structure-function relationship of natural and synthetic lipid-based drug delivery vehicles in vitro, yet successful clinical translation remains sparse due to the lack of understanding of these materials in biological bodies. This review provides an overview of (1) the benefits and advantages of using LCNPs as drug delivery nanocarriers, (2) design principles for making LCNPs with desirable functionalities for drug delivery applications, (3) current understanding of the LLC material-biology interface illustrated by more than 50 in vivo, preclinical studies, and (4) current patenting and translation activities in a pharmaceutical context. Together with our perspectives and expert opinions, we anticipate that this review will guide future studies in developing LCNP-based drug delivery nanocarriers with the objective of translating them into a key player among nanoparticle platforms comprising the next generation of nanomedicine for disease therapy and diagnosis.
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Affiliation(s)
- Jiali Zhai
- 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
| | - Nhiem Tran
- School of Science, College of Science, Engineering and Health , RMIT University , Melbourne , Victoria 3000 , Australia
| | - Calum J Drummond
- School of Science, College of Science, Engineering and Health , RMIT University , Melbourne , Victoria 3000 , Australia
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15
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Chen T, Li S, Zhu W, Liang Z, Zeng Q. Self-assembly pH-sensitive chitosan/alginate coated polyelectrolyte complexes for oral delivery of insulin. J Microencapsul 2019; 36:96-107. [DOI: 10.1080/02652048.2019.1604846] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Tingting Chen
- Biomaterial Research Center, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, China
- Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, China
| | - Shunying Li
- Biomaterial Research Center, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, China
- Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, China
| | - Wenting Zhu
- Biomaterial Research Center, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, China
- Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, China
| | - Zhi Liang
- Biopharmaceutics, Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, China
| | - Qingbing Zeng
- Biomaterial Research Center, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, China
- Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, China
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16
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El-Lakany SA, Elgindy NA, Helmy MW, Abu-Serie MM, Elzoghby AO. Lactoferrin-decorated vs PEGylated zein nanospheres for combined aromatase inhibitor and herbal therapy of breast cancer. Expert Opin Drug Deliv 2018; 15:835-850. [DOI: 10.1080/17425247.2018.1505858] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Sarah A. El-Lakany
- Department of Industrial Pharmacy, Faculty of Pharmacy, Alexandria University, Alexandria, Egypt
| | - Nazik A. Elgindy
- Department of Industrial Pharmacy, Faculty of Pharmacy, Alexandria University, Alexandria, Egypt
| | - Maged W. Helmy
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Damanhur University, El-Behira, Egypt
- Cancer Nanotechnology Research Laboratory (CNRL), Faculty of Pharmacy, Alexandria University, Alexandria, Egypt
| | - Marwa M Abu-Serie
- Genetic Engineering and Biotechnology Research Institute, City of Scientific Research and Technological Applications, Alexandria, Egypt
| | - Ahmed O. Elzoghby
- Department of Industrial Pharmacy, Faculty of Pharmacy, Alexandria University, Alexandria, Egypt
- Cancer Nanotechnology Research Laboratory (CNRL), Faculty of Pharmacy, Alexandria University, Alexandria, Egypt
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, USA
- Harvard-MIT Division of Health Sciences and Technologies, Cambridge, MA, USA
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17
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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: 123] [Impact Index Per Article: 20.5] [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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18
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Advances in structural design of lipid-based nanoparticle carriers for delivery of macromolecular drugs, phytochemicals and anti-tumor agents. Adv Colloid Interface Sci 2017; 249:331-345. [PMID: 28477868 DOI: 10.1016/j.cis.2017.04.006] [Citation(s) in RCA: 131] [Impact Index Per Article: 18.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2017] [Revised: 03/13/2017] [Accepted: 04/17/2017] [Indexed: 12/19/2022]
Abstract
The present work highlights recent achievements in development of nanostructured dispersions and biocolloids for drug delivery applications. We emphasize the key role of biological small-angle X-ray scattering (BioSAXS) investigations for the nanomedicine design. A focus is given on controlled encapsulation of small molecular weight phytochemical drugs in lipid-based nanocarriers as well as on encapsulation of macromolecular siRNA, plasmid DNA, peptide and protein pharmaceuticals in nanostructured nanoparticles that may provide efficient intracellular delivery and triggered drug release. Selected examples of utilisation of the BioSAXS method for characterization of various types of liquid crystalline nanoorganizations (liposome, spongosome, cubosome, hexosome, and nanostructured lipid carriers) are discussed in view of the successful encapsulation and protection of phytochemicals and therapeutic biomolecules in the hydrophobic or the hydrophilic compartments of the nanocarriers. We conclude that the structural design of the nanoparticulate carriers is of crucial importance for the therapeutic outcome and the triggered drug release from biocolloids.
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19
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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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20
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Self-assembled stable sponge-type nanocarries for Brucea javanica oil delivery. Colloids Surf B Biointerfaces 2017; 153:310-319. [PMID: 28285062 DOI: 10.1016/j.colsurfb.2017.02.031] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2016] [Revised: 02/11/2017] [Accepted: 02/24/2017] [Indexed: 12/17/2022]
Abstract
Sponge-type nanocarriers (spongosomes) are produced upon dispersion of a liquid crystalline sponge phase formed by self-assembly of an amphiphilic lipid in excess aqueous phase. The inner organization of the spongosomes is built-up by randomly ordered bicontinuous lipid membranes and their surfaces are stabilized by alginate chains providing stealth properties and colloidal stability. The present study elaborates spongosomes for improved encapsulation of Brucea javanica oil (BJO), a traditional Chinese medicine that may strongly inhibit proliferation and metastasis of various cancers. The inner structural organization and the morphology characteristics of BJO-loaded nanocarriers at varying quantities of BJO were determined by cryogenic transmission electron microscopy (Cryo-TEM), small angle X-ray scattering (SAXS) and dynamic light scattering (DLS). Additionally, the drug loading and drug release profiles for BJO-loaded spongosome systems also were determined. We found that the sponge-type liquid crystalline lipid membrane organization provides encapsulation efficiency rate of BJO as high as 90%. In vitro cytotoxicity and apoptosis study of BJO spongosome nanoparticles with A549 cells demonstrated enhanced anti-tumor efficiency. These results suggest potential clinical applications of the obtained safe spongosome formulations.
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21
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Haggag YA, Matchett KB, Dakir EH, Buchanan P, Osman MA, Elgizawy SA, El-Tanani M, Faheem AM, McCarron PA. Nano-encapsulation of a novel anti-Ran-GTPase peptide for blockade of regulator of chromosome condensation 1 (RCC1) function in MDA-MB-231 breast cancer cells. Int J Pharm 2017; 521:40-53. [PMID: 28163220 DOI: 10.1016/j.ijpharm.2017.02.006] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2016] [Revised: 01/31/2017] [Accepted: 02/01/2017] [Indexed: 01/07/2023]
Abstract
Ran is a small ras-related GTPase and is highly expressed in aggressive breast carcinoma. Overexpression induces malignant transformation and drives metastatic growth. We have designed a novel series of anti-Ran-GTPase peptides, which prevents Ran hydrolysis and activation, and although they display effectiveness in silico, peptide activity is suboptimal in vitro due to reduced bioavailability and poor delivery. To overcome this drawback, we delivered an anti-Ran-GTPase peptide using encapsulation in PLGA-based nanoparticles (NP). Formulation variables within a double emulsion solvent evaporation technique were controlled to optimise physicochemical properties. NP were spherical and negatively charged with a mean diameter of 182-277nm. Peptide integrity and stability were maintained after encapsulation and release kinetics followed a sustained profile. We were interested in the relationship between cellular uptake and poly(ethylene glycol) (PEG) in the NP matrix, with results showing enhanced in vitro uptake with increasing PEG content. Peptide-loaded, pegylated (10% PEG)-PLGA NP induced significant cytotoxic and apoptotic effects in MDA-MB-231 breast cancer cells, with no evidence of similar effects in cells pulsed with free peptide. Western blot analysis showed that encapsulated peptide interfered with the proposed signal transduction pathway of the Ran gene. Our novel blockade peptide prevented Ran activation by blockage of regulator of chromosome condensation 1 (RCC1) following peptide release directly in the cytoplasm once endocytosis of the peptide-loaded nanoparticle has occurred. RCC1 blockage was effective only when a nanoparticulate delivery approach was adopted.
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Affiliation(s)
- Yusuf A Haggag
- School of Pharmacy and Pharmaceutical Sciences, Saad Centre for Pharmacy and Diabetes, Ulster University, Cromore Road, Coleraine, Co. Londonderry, BT52 1SA, UK; Department of Pharmaceutical Technology, Faculty of Pharmacy, University of Tanta, Tanta, Egypt
| | - Kyle B Matchett
- Centre for Cancer Research and Cell Biology, Queen's University Belfast, Belfast BT9 7BL, UK
| | - El-Habib Dakir
- Centre for Cancer Research and Cell Biology, Queen's University Belfast, Belfast BT9 7BL, UK; Institute of Cancer Therapeutics, University of Bradford, Bradford, UK
| | - Paul Buchanan
- Centre for Cancer Research and Cell Biology, Queen's University Belfast, Belfast BT9 7BL, UK
| | - Mohammed A Osman
- Department of Pharmaceutical Technology, Faculty of Pharmacy, University of Tanta, Tanta, Egypt
| | - Sanaa A Elgizawy
- Department of Pharmaceutical Technology, Faculty of Pharmacy, University of Tanta, Tanta, Egypt
| | - Mohamed El-Tanani
- Centre for Cancer Research and Cell Biology, Queen's University Belfast, Belfast BT9 7BL, UK; Institute of Cancer Therapeutics, University of Bradford, Bradford, UK; IDT (Imhotep Diagnostics and Therapeutics), Europa Tool House, Springbank, Industrial Estate, Dunmurry, Northern Ireland, UK
| | - Ahmed M Faheem
- Department of Pharmaceutical Technology, Faculty of Pharmacy, University of Tanta, Tanta, Egypt; Sunderland Pharmacy School, Department of Pharmacy, Health and Well Being, University of Sunderland, Sunderland SR1 3SD, UK
| | - Paul A McCarron
- School of Pharmacy and Pharmaceutical Sciences, Saad Centre for Pharmacy and Diabetes, Ulster University, Cromore Road, Coleraine, Co. Londonderry, BT52 1SA, UK.
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22
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Muhammad F, Nguyen TDT, Raza A, Akhtar B, Aryal S. A review on nanoparticle-based technologies for biodetoxification. Drug Chem Toxicol 2017; 40:489-497. [DOI: 10.1080/01480545.2016.1277736] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Faqir Muhammad
- Institute of Pharmacy, Physiology and Pharmacology, University of Agriculture, Faisalabad, Pakistan, and
| | - Tuyen Duong Thanh Nguyen
- Nanotechnology Innovation Center of Kansas State, Department of Chemistry, Kansas State University, Manhattan, KS, USA
| | - Ahmad Raza
- Institute of Pharmacy, Physiology and Pharmacology, University of Agriculture, Faisalabad, Pakistan, and
| | - Bushra Akhtar
- Institute of Pharmacy, Physiology and Pharmacology, University of Agriculture, Faisalabad, Pakistan, and
| | - Santosh Aryal
- Nanotechnology Innovation Center of Kansas State, Department of Chemistry, Kansas State University, Manhattan, KS, USA
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23
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Chandra F, Mallick S, Koner AL. Spectroscopic investigation of bio-mimetic solvolysis of 6-(N,N-dimethylamino)-2,3-naphthalic anhydride in confined nanocavities. Phys Chem Chem Phys 2017; 19:4337-4344. [DOI: 10.1039/c6cp08009j] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Enzymes are biological catalysts that can vastly accelerate the reaction rate of a substrate by accommodating it within the active site.
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Affiliation(s)
- Falguni Chandra
- Department of Chemistry
- Indian Institute of Science Education and Research Bhopal
- Bhopal-462066
- India
| | - Suman Mallick
- Department of Chemistry
- Indian Institute of Science Education and Research Bhopal
- Bhopal-462066
- India
| | - Apurba L. Koner
- Department of Chemistry
- Indian Institute of Science Education and Research Bhopal
- Bhopal-462066
- India
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24
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Meikle T, Drummond C, Separovic F, Conn C. Membrane-Mimetic Inverse Bicontinuous Cubic Phase Systems for Encapsulation of Peptides and Proteins. ACTA ACUST UNITED AC 2017. [DOI: 10.1016/bs.abl.2017.01.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/07/2023]
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25
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van 't Hag L, Shen HH, Lin TW, Gras SL, Drummond CJ, Conn CE. Effect of Lipid-Based Nanostructure on Protein Encapsulation within the Membrane Bilayer Mimetic Lipidic Cubic Phase Using Transmembrane and Lipo-proteins from the Beta-Barrel Assembly Machinery. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2016; 32:12442-12452. [PMID: 27326898 DOI: 10.1021/acs.langmuir.6b01800] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
A fundamental understanding of the effect of amphiphilic protein encapsulation on the nanostructure of the bicontinuous cubic phase is crucial to progressing biomedical and biological applications of these hybrid protein-lipid materials, including as drug delivery vehicles, as biosensors, biofuel cells and for in meso crystallization. The relationship between the lipid nanomaterial and the encapsulated protein, however, remains poorly understood. In this study, we investigated the effect of incorporating the five transmembrane and lipo-proteins which make up the β-barrel assembly machinery from Gram-negative bacteria within a series of bicontinuous cubic phases. The transmembrane β-barrel BamA caused an increase in lattice parameter of the cubic phase upon encapsulation. By contrast, the mainly hydrophilic lipo-proteins BamB-E caused the cubic phase lattice parameters to decrease, despite their large size relative to the diameter of the cubic phase water channels. Analysis of the primary amino acid sequence was used to rationalize this effect, based on specific interactions between aromatic amino acids within the proteins and the polar-apolar interface. Other factors that were found to have an effect were lateral bilayer pressure and rigidity within the lipid bilayer, water channel diameter, and size and structure of the lipo-proteins. The data presented suggest that hydrophilic bioactive molecules can be selectively encapsulated within the cubic phase by using a lipid anchor or aromatic amino acids, for drug delivery or biosensing applications.
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Affiliation(s)
| | | | - Tsung-Wu Lin
- Department of Chemistry, Tunghai University , Taichung City 40704, Taiwan
| | | | - Calum J Drummond
- CSIRO Manufacturing , Clayton, Victoria 3168, Australia
- School of Science, College of Science, Engineering and Health, RMIT University , Melbourne, Victoria 3001, Australia
| | - Charlotte E Conn
- School of Science, College of Science, Engineering and Health, RMIT University , Melbourne, Victoria 3001, Australia
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26
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Freag MS, Elnaggar YS, Abdelmonsif DA, Abdallah OY. Stealth, biocompatible monoolein-based lyotropic liquid crystalline nanoparticles for enhanced aloe-emodin delivery to breast cancer cells: in vitro and in vivo studies. Int J Nanomedicine 2016; 11:4799-4818. [PMID: 27703348 PMCID: PMC5036603 DOI: 10.2147/ijn.s111736] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
Recently, research has progressively highlighted on clues from conventional use of herbal medicines to introduce new anticancer drugs. Aloe-emodin (AE) is a herbal drug with promising anticancer activity. Nevertheless, its clinical utility is handicapped by its low solubility. For the first time, this study aims to the fabrication of surface-functionalized polyethylene glycol liquid crystalline nanoparticles (PEG-LCNPs) of AE to enhance its water solubility and enable its anticancer use. Developed AE-PEG-LCNPs were optimized via particle size and zeta potential measurements. Phase behavior, solid state characteristics, hemocompatibility, and serum stability of LCNPs were assessed. Sterile formulations were developed using various sterilization technologies. Furthermore, the potential of the formulations was investigated using cell culture, pharmacokinetics, biodistribution, and toxicity studies. AE-PEG-LCNPs showed particle size of 190 nm and zeta potential of −49.9, and PEGylation approach reduced the monoolein hemolytic tendency to 3% and increased the serum stability of the nanoparticles. Sterilization of liquid and lyophilized AE-PEG-LCNPs via autoclaving and γ-radiations, respectively, insignificantly affected the physicochemical properties of the nanoparticles. Half maximal inhibitory concentration of AE-PEG-LCNPs was 3.6-fold lower than free AE after 48 hours and their cellular uptake was threefold higher than free AE after 24-hour incubation. AE-PEG-LCNPs presented 5.4-fold increase in t1/2 compared with free AE. Biodistribution and toxicity studies showed reduced AE-PEG-LCNP uptake by reticuloendothelial system organs and good safety profile. PEGylated LCNPs could serve as a promising nanocarrier for efficient delivery of AE to cancerous cells.
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Affiliation(s)
- May S Freag
- Department of Pharmaceutics, Faculty of Pharmacy, Alexandria University
| | - Yosra Sr Elnaggar
- Department of Pharmaceutics, Faculty of Pharmacy, Alexandria University; Department of Pharmaceutics, Faculty of Pharmacy and Drug Manufacturing, Pharos University in Alexandria
| | - Doaa A Abdelmonsif
- Department of Medical Biochemistry, Faculty of Medicine, Alexandria University, Alexandria, Egypt
| | - Ossama Y Abdallah
- Department of Pharmaceutics, Faculty of Pharmacy, Alexandria University
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27
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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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28
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van 't Hag L, de Campo L, Garvey CJ, Feast GC, Leung AE, Yepuri NR, Knott R, Greaves TL, Tran N, Gras SL, Drummond CJ, Conn CE. Using SANS with Contrast-Matched Lipid Bicontinuous Cubic Phases To Determine the Location of Encapsulated Peptides, Proteins, and Other Biomolecules. J Phys Chem Lett 2016; 7:2862-2866. [PMID: 27414483 DOI: 10.1021/acs.jpclett.6b01173] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
An understanding of the location of peptides, proteins, and other biomolecules within the bicontinuous cubic phase is crucial for understanding and evolving biological and biomedical applications of these hybrid biomolecule-lipid materials, including during in meso crystallization and drug delivery. While theoretical modeling has indicated that proteins and additive lipids might phase separate locally and adopt a preferred location in the cubic phase, this has never been experimentally confirmed. We have demonstrated that perfectly contrast-matched cubic phases in D2O can be studied using small-angle neutron scattering by mixing fully deuterated and hydrogenated lipid at an appropriate ratio. The model transmembrane peptide WALP21 showed no preferential location in the membrane of the diamond cubic phase of phytanoyl monoethanolamide and was not incorporated in the gyroid cubic phase. While deuteration had a small effect on the phase behavior of the cubic phase forming lipids, the changes did not significantly affect our results.
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Affiliation(s)
| | | | | | | | | | | | | | - Tamar L Greaves
- School of Science, College of Science, Engineering and Health, RMIT University , Melbourne, Victoria 3001, Australia
| | - Nhiem Tran
- School of Science, College of Science, Engineering and Health, RMIT University , Melbourne, Victoria 3001, Australia
| | - Sally L Gras
- The ARC Dairy Innovation Hub, The University of Melbourne , Parkville, Victoria 3010, Australia
| | - Calum J Drummond
- CSIRO Manufacturing , Clayton, Victoria 3168, Australia
- School of Science, College of Science, Engineering and Health, RMIT University , Melbourne, Victoria 3001, Australia
| | - Charlotte E Conn
- School of Science, College of Science, Engineering and Health, RMIT University , Melbourne, Victoria 3001, Australia
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van 't Hag L, Li X, Meikle TG, Hoffmann SV, Jones NC, Pedersen JS, Hawley AM, Gras SL, Conn CE, Drummond CJ. How Peptide Molecular Structure and Charge Influence the Nanostructure of Lipid Bicontinuous Cubic Mesophases: Model Synthetic WALP Peptides Provide Insights. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2016; 32:6882-6894. [PMID: 27315326 DOI: 10.1021/acs.langmuir.6b01058] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Nanostructured bicontinuous lipidic cubic phases are used for the encapsulation of proteins in a range of applications such as in meso crystallization of transmembrane proteins and as drug delivery vehicles. The retention of the nanoscale order of the cubic phases subsequent to protein incorporation, as well as retention of the protein structure and function, is essential for all of these applications. Herein synthetic peptides (WALP21, WALPS53, and WALPS73) with a common α-helical hydrophobic domain, but varying hydrophilic loop size, were designed to systematically examine the effect of peptide structure and charge on bicontinuous cubic phases. The effect of the cubic phases on the secondary structure of the peptides was also investigated. The incorporation of the WALP peptides in cubic phases formed by a range of lipids showed that hydrophobic mismatch of the peptides with the lipid bilayers, the hydrophilic domain size, and peptide charge were all significant factors determining the response of the lipid nanomaterial to protein insertion. As charge repulsion had the most significant effect on the phase transitions observed, we suggest that buffer pH and salt concentration must be carefully considered to ensure cubic mesophase retention. Importantly, the WALP peptides were found to have a different conformation depending on the local lipid environment. Such structural changes could potentially affect membrane protein function, which is crucial for both current and prospective applications.
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Affiliation(s)
| | | | | | | | | | | | | | | | - Charlotte E Conn
- School of Science, College of Science, Engineering and Health, RMIT University , Melbourne, Victoria 3001, Australia
| | - Calum J Drummond
- CSIRO Manufacturing , Clayton, Victoria 3168, Australia
- School of Science, College of Science, Engineering and Health, RMIT University , Melbourne, Victoria 3001, Australia
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30
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Kulkarni CV, Moinuddin Z, Agarwal Y. Effect of fullerene on the dispersibility of nanostructured lipid particles and encapsulation in sterically stabilized emulsions. J Colloid Interface Sci 2016; 480:69-75. [PMID: 27416287 DOI: 10.1016/j.jcis.2016.07.008] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2016] [Revised: 07/04/2016] [Accepted: 07/05/2016] [Indexed: 01/27/2023]
Abstract
We report on the effect of fullerenes (C60) on the stability of nanostructured lipid emulsions. These (oil-in-water) emulsions are essentially aqueous dispersions of lipid particles exhibiting self-assembled nanostructures at their cores. The majority of previous studies on fullerenes were focused on planar and spherical lipid bilayer systems including pure lipids and liposomes. In this work, fullerenes were interacted with a lipid that forms nanostructured dispersions of non-lamellar self-assemblies. A range of parameters including the composition of emulsions and sonication parameters were examined to determine the influence of fullerenes on in-situ and pre-stabilized lipid emulsions. We found that fullerenes mutually stabilize very low concentrations of lipid molecules, while other concentration emulsions struggle to stay stable or even to form at first instance; we provide hypotheses to support these observations. Interestingly though, we were able to encapsulate varying amounts of fullerenes in sterically stabilized emulsions. This step has a significant positive impact, as we could effectively control an inherent aggregation tendency of fullerenes in aqueous environments. These novel hybrid nanomaterials may open a range of avenues for biotechnological and biomedical applications exploiting properties of both lipid and fullerene nanostructures.
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Affiliation(s)
- Chandrashekhar V Kulkarni
- Centre for Materials Science, School of Physical Sciences and Computing, University of Central Lancashire, Preston PR1 2HE, United Kingdom.
| | - Zeinab Moinuddin
- Centre for Materials Science, School of Physical Sciences and Computing, University of Central Lancashire, Preston PR1 2HE, United Kingdom
| | - Yash Agarwal
- Centre for Materials Science, School of Physical Sciences and Computing, University of Central Lancashire, Preston PR1 2HE, United Kingdom; Metallurgical Engineering & Material Science Department, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
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31
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Boge L, Bysell H, Ringstad L, Wennman D, Umerska A, Cassisa V, Eriksson J, Joly-Guillou ML, Edwards K, Andersson M. Lipid-Based Liquid Crystals As Carriers for Antimicrobial Peptides: Phase Behavior and Antimicrobial Effect. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2016; 32:4217-4228. [PMID: 27033359 DOI: 10.1021/acs.langmuir.6b00338] [Citation(s) in RCA: 87] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
The number of antibiotic-resistant bacteria is increasing worldwide, and the demand for novel antimicrobials is constantly growing. Antimicrobial peptides (AMPs) could be an important part of future treatment strategies of various bacterial infection diseases. However, AMPs have relatively low stability, because of proteolytic and chemical degradation. As a consequence, carrier systems protecting the AMPs are greatly needed, to achieve efficient treatments. In addition, the carrier system also must administrate the peptide in a controlled manner to match the therapeutic dose window. In this work, lyotropic liquid crystalline (LC) structures consisting of cubic glycerol monooleate/water and hexagonal glycerol monooleate/oleic acid/water have been examined as carriers for AMPs. These LC structures have the capability of solubilizing both hydrophilic and hydrophobic substances, as well as being biocompatible and biodegradable. Both bulk gels and discrete dispersed structures (i.e., cubosomes and hexosomes) have been studied. Three AMPs have been investigated with respect to phase stability of the LC structures and antimicrobial effect: AP114, DPK-060, and LL-37. Characterization of the LC structures was performed using small-angle X-ray scattering (SAXS), dynamic light scattering, ζ-potential, and cryogenic transmission electron microscopy (Cryo-TEM) and peptide loading efficacy by ultra performance liquid chromatography. The antimicrobial effect of the LCNPs was investigated in vitro using minimum inhibitory concentration (MIC) and time-kill assay. The most hydrophobic peptide (AP114) was shown to induce an increase in negative curvature of the cubic LC system. The most polar peptide (DPK-060) induced a decrease in negative curvature while LL-37 did not change the LC phase at all. The hexagonal LC phase was not affected by any of the AMPs. Moreover, cubosomes loaded with peptides AP114 and DPK-060 showed preserved antimicrobial activity, whereas particles loaded with peptide LL-37 displayed a loss in its broad-spectrum bactericidal properties. AMP-loaded hexosomes showed a reduction in antimicrobial activity.
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Affiliation(s)
- Lukas Boge
- SP Technical Research Institute of Sweden, Drottning Kristinas väg 45, Box 5607, Stockholm SE 11486, Sweden
- Department of Chemical and Chemical Engineering, Applied Chemistry, Chalmers University of Technology , Kemigården 4, Göteborg SE-41296, Sweden
| | - Helena Bysell
- SP Technical Research Institute of Sweden, Drottning Kristinas väg 45, Box 5607, Stockholm SE 11486, Sweden
| | - Lovisa Ringstad
- SP Technical Research Institute of Sweden, Drottning Kristinas väg 45, Box 5607, Stockholm SE 11486, Sweden
| | - David Wennman
- SP Process Development, Forskargatan 18, Box 36, Södertälje SE 15121, Sweden
| | - Anita Umerska
- Inserm U1066, University of Angers , 4 rue Larrey, Cedex 9 Angers FR 49933, France
| | - Viviane Cassisa
- Laboratoire de Bactériologie-Hygiène, CHU Angers , 4 rue Larrey, Angers FR 49000, France
| | - Jonny Eriksson
- Department of Chemistry - BMC, Uppsala University , Husargatan 3, Box 579, Uppsala SE-75123, Sweden
| | | | - Katarina Edwards
- Department of Chemistry - BMC, Uppsala University , Husargatan 3, Box 579, Uppsala SE-75123, Sweden
| | - Martin Andersson
- Department of Chemical and Chemical Engineering, Applied Chemistry, Chalmers University of Technology , Kemigården 4, Göteborg SE-41296, Sweden
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32
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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: 183] [Impact Index Per Article: 22.9] [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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33
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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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34
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van 't Hag L, Shen HH, Lu J, Hawley AM, Gras SL, Drummond CJ, Conn CE. Deconvoluting the Effect of the Hydrophobic and Hydrophilic Domains of an Amphiphilic Integral Membrane Protein in Lipid Bicontinuous Cubic Mesophases. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2015; 31:12025-12034. [PMID: 26488819 DOI: 10.1021/acs.langmuir.5b03256] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Lipidic bicontinuous cubic mesophases with encapsulated amphiphilic proteins are widely used in a range of biological and biomedical applications, including in meso crystallization, as drug delivery vehicles for therapeutic proteins, and as biosensors and biofuel cells. However, the effect of amphiphilic protein encapsulation on the cubic phase nanostructure is not well-understood. In this study, we illustrate the effect of incorporating the bacterial amphiphilic membrane protein Ag43, and its individual hydrophobic β(43) and hydrophilic α(43) domains, in bicontinuous cubic mesophases. For the monoolein, monoalmitolein, and phytantriol cubic phases with and without 8% w/w cholesterol, the effect of the full length amphiphilic protein Ag43 on the cubic phase nanostructure was more significant than the sum of the individual hydrophobic β(43) and hydrophilic α(43) domains. Several factors were found to potentially influence the impact of the hydrophobic β(43) domain on the cubic phase internal nanostructure. These include the size of the hydrophobic β(43) domain relative to the thickness of the lipid bilayer, as well as its charge and diameter. The size of the hydrophilic α(43) domain relative to the water channel radius of the cubic mesophase was also found to be important. The secondary structure of the Ag43 proteins was affected by the hydrophobic thickness and physicochemical properties of the lipid bilayer and the water channel diameter of the cubic phase. Such structural changes may be small but could potentially affect membrane protein function.
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Affiliation(s)
| | | | | | | | | | - Calum J Drummond
- CSIRO Manufacturing Flagship , Clayton, Victoria 3169, Australia
- School of Applied Sciences, College of Science, Engineering and Health, RMIT University , Melbourne, Victoria 3001, Australia
| | - Charlotte E Conn
- School of Applied Sciences, College of Science, Engineering and Health, RMIT University , Melbourne, Victoria 3001, Australia
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35
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Abstract
RNAi technology is currently experiencing a revival due to remarkable improvements in efficacy and viability through oligonucleotide chemical manipulations and/or via their packaging into nanoscale carriers. At present, there is no FDA-approved system for siRNA technology in humans. The design of the next generation of siRNA carriers requires a deep understanding of how a nanoparticle's physicochemical properties truly impart biological stability and efficiency. For example, we now know that nanoparticles need to be sterically stabilized in order to meet adequate biodistribution profiles. At present, targeting, uptake, and, in particular, endosomal escape are among the most critical challenges impairing RNAi technologies. The disruption of endosomes encompasses membrane transformations (for example, pore formation) that cost significant elastic energy. Nanoparticle size and shape have been identified as relevant parameters impacting tissue accumulation and cellular uptake. In this paper, we demonstrate that the internal structure of lipid-based particles offers a different handle to promote endosomal membrane topological disruptions that enhance siRNA delivery. Specifically, we designed sterically stabilized lipid-based particles that differ from traditional liposomal systems by displaying highly ordered bicontinuous cubic internal structures that can be loaded with large amounts of siRNA. This system differs from traditional siRNA-containing liposomes (lipoplexes) as the particle-endosomal membrane interactions are controlled by elasticity energetics and not by electrostatics. The resulting "PEGylated cuboplex" has the ability to deliver siRNA and specifically knockdown genes with efficiencies that surpass those achieved by traditional lipoplex systems.
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Affiliation(s)
- Hojun Kim
- Materials Science and Engineering Department, University of Illinois at Urbana-Champaign , 1304 West Green Street, Urbana, Illinois 61801, United States
| | - Cecilia Leal
- Materials Science and Engineering Department, University of Illinois at Urbana-Champaign , 1304 West Green Street, Urbana, Illinois 61801, United States
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36
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Ruocco N, Frielinghaus H, Vitiello G, D’Errico G, Leal LG, Richter D, Ortona O, Paduano L. How hydrophobically modified chitosans are stabilized by biocompatible lipid aggregates. J Colloid Interface Sci 2015; 452:160-168. [DOI: 10.1016/j.jcis.2015.03.058] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2015] [Revised: 03/31/2015] [Accepted: 03/31/2015] [Indexed: 01/02/2023]
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37
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Li S, Peng Z, Leblanc RM. Method To Determine Protein Concentration in the Protein-Nanoparticle Conjugates Aqueous Solution Using Circular Dichroism Spectroscopy. Anal Chem 2015; 87:6455-9. [PMID: 26070096 DOI: 10.1021/acs.analchem.5b01451] [Citation(s) in RCA: 72] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Considerable efforts have been made to synthesize and characterize protein-nanoparticle conjugates (protein-NPs) for their promising applications in bionanotechnology. However, protein concentration determination in the protein-NPs has so far not been reported. In this Letter, we present a simple and nondestructive approach to quantify the protein concentration in the protein-NPs aqueous solution using circular dichroism (CD) spectroscopy. Carbon dots (∼4 nm), gold nanoparticles (∼10 nm), and polyethylene glycol (PEG, molecular weight ∼3000) were either physically mixed or covalently conjugated (not in the case of gold nanoparticles) with proteins (human transferrin, human serum albumin, and ovalbumin). We were able to quantify the protein concentration in the protein-nanoparticle conjugates using a calibration curve from the CD spectra.
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Affiliation(s)
- Shanghao Li
- Department of Chemistry, University of Miami, 1301 Memorial Drive, Coral Gables, Florida 33146, United States
| | - Zhili Peng
- Department of Chemistry, University of Miami, 1301 Memorial Drive, Coral Gables, Florida 33146, United States
| | - Roger M Leblanc
- Department of Chemistry, University of Miami, 1301 Memorial Drive, Coral Gables, Florida 33146, United States
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38
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Pharmacokinetic and Pharmacodynamic Evaluation of a Nanotechnological Topical Formulation of Lidocaine/Prilocaine (Nanorap) in Healthy Volunteers. Ther Drug Monit 2015; 37:362-8. [DOI: 10.1097/ftd.0000000000000156] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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39
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Angelov B, Angelova A, Drechsler M, Garamus VM, Mutafchieva R, Lesieur S. Identification of large channels in cationic PEGylated cubosome nanoparticles by synchrotron radiation SAXS and Cryo-TEM imaging. SOFT MATTER 2015; 11:3686-92. [PMID: 25820228 DOI: 10.1039/c5sm00169b] [Citation(s) in RCA: 80] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Extra-large nanochannel formation in the internal structure of cationic cubosome nanoparticles results from the interplay between charge repulsion and steric stabilization of the lipid membrane interfaces and is evidenced by cryogenic transmission electron microscopy (Cryo-TEM) and synchrotron radiation small-angle X-ray scattering (SAXS). The swollen cubic symmetry of the lipid nanoparticles emerges through a shaping transition of onion bilayer vesicle intermediates containing a fusogenic nonlamellar lipid. Cationic amphiphile cubosome particles, thanks to the advantages of their liquid crystalline soft porous nanoarchitecture and capability for multi-drug nanoencapsulation, appear to be of interest for the design of mitochondrial targeting devices in anti-cancer therapies and as siRNA nanocarriers for gene silencing.
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Affiliation(s)
- Borislav Angelov
- Institute of Macromolecular Chemistry, Academy of Sciences of the Czech Republic, Heyrovskeho Nam. 2, 16206 Prague, Czech Republic
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40
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Hartnett TE, O’Connor AJ, Ladewig K. Cubosomes and other potential ocular drug delivery vehicles for macromolecular therapeutics. Expert Opin Drug Deliv 2015; 12:1513-26. [DOI: 10.1517/17425247.2015.1021680] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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41
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Zhai J, Scoble JA, Li N, Lovrecz G, Waddington LJ, Tran N, Muir BW, Coia G, Kirby N, Drummond CJ, Mulet X. Epidermal growth factor receptor-targeted lipid nanoparticles retain self-assembled nanostructures and provide high specificity. NANOSCALE 2015; 7:2905-2913. [PMID: 25516406 DOI: 10.1039/c4nr05200e] [Citation(s) in RCA: 65] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Next generation drug delivery utilising nanoparticles incorporates active targeting to specific sites. In this work, we combined targeting with the inherent advantages of self-assembled lipid nanoparticles containing internal nano-structures. Epidermal growth factor receptor (EGFR)-targeting, PEGylated lipid nanoparticles using phytantriol and 1,2-distearoyl-sn-glycero-3-phosphoethanolamine-PEG-maleimide amphiphiles were created. The self-assembled lipid nanoparticles presented here have internal lyotropic liquid crystalline nano-structures, verified by synchrotron small angle X-ray scattering and cryo-transmission electron microscopy, that offer the potential of high drug loading and enhanced cell penetration. Anti-EGFR Fab' fragments were conjugated to the surface of nanoparticles via a maleimide-thiol reaction at a high conjugation efficiency and retained specificity following conjugation to the nanoparticles. The conjugated nanoparticles were demonstrated to have high affinity for an EGFR target in a ligand binding assay.
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Affiliation(s)
- Jiali Zhai
- CSIRO Manufacturing Flagship, Private Bag 10, Clayton, VIC 3169, Australia.
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42
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Chen Y, Angelova A, Angelov B, Drechsler M, Garamus VM, Willumeit-Römer R, Zou A. Sterically stabilized spongosomes for multidrug delivery of anticancer nanomedicines. J Mater Chem B 2015; 3:7734-7744. [DOI: 10.1039/c5tb01193k] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
SAXS patterns of drug-loaded lipid nanocarriers stabilized by polysorbate P80 (left); cryo-TEM image of BAI-BJO-spongosomes-2 (right).
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Affiliation(s)
- Yiyin Chen
- East China University of Science and Technology
- Shanghai
- China
| | - Angelina Angelova
- CNRS UMR8612 Institut Galien Paris-Sud
- Univ Paris Sud
- LabEx LERMIT
- Châtenay-Malabry
- F-92296 France
| | - Borislav Angelov
- Institute of Macromolecular Chemistry
- Academy of Sciences of the Czech Republic
- 16206 Prague
- Czech Republic
| | - Markus Drechsler
- Laboratory for Soft Matter Electron Microscopy
- Bayreuth Institute of Macromolecular Research (BIMF)
- University of Bayreuth
- D-95440 Bayreuth
- Germany
| | - Vasil M. Garamus
- Helmholtz-Zentrum Geesthacht
- Centre for Materials and Coastal Research
- D-21502 Geesthacht
- Germany
| | - Regine Willumeit-Römer
- Helmholtz-Zentrum Geesthacht
- Centre for Materials and Coastal Research
- D-21502 Geesthacht
- Germany
| | - Aihua Zou
- East China University of Science and Technology
- Shanghai
- China
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43
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Chong JY, Mulet X, Boyd BJ, Drummond CJ. Steric Stabilizers for Cubic Phase Lyotropic Liquid Crystal Nanodispersions (Cubosomes). ADVANCES IN PLANAR LIPID BILAYERS AND LIPOSOMES 2015. [DOI: 10.1016/bs.adplan.2014.11.001] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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44
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Martiel I, Handschin S, Fong WK, Sagalowicz L, Mezzenga R. Oil transfer converts phosphatidylcholine vesicles into nonlamellar lyotropic liquid crystalline particles. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2014; 31:96-104. [PMID: 25485462 DOI: 10.1021/la504115a] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
There is a need for the development of low-energy dispersion methods tailored to the formation of phospholipid-based nonlamellar lyotropic liquid crystalline (LLC) particles for delivery system applications. Here, facile formation of nonlamellar LLC particles was obtained by simple mixing of a phosphatidylcholine (PC) liposome solution and an oil-in-water emulsion, with limonene or isooctane as an oil. The internal structure of the particles was controlled by the PC-to-oil ratio, consistently with the sequence observed in bulk phase. For the first time, reverse micellar cubosomes with Fm3̅m inner structure were produced. The size, morphology, and inner structure of the particles were characterized by small-angle X-ray scattering (SAXS), dynamic light scattering (DLS), and freeze-fracture cryo scanning electron microscopy (cryo-SEM). These findings pave the way to new strategies in low-energy formulation of LLC delivery systems.
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Affiliation(s)
- Isabelle Martiel
- Food and Soft Materials Science, Institute of Food, Nutrition & Health, ETH Zurich , Schmelzbergstrasse 9, CH-8092 Zurich, Zurich, Switzerland
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45
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Angelova A, Angelov B, Mutafchieva R, Lesieur S. Biocompatible Mesoporous and Soft Nanoarchitectures. J Inorg Organomet Polym Mater 2014. [DOI: 10.1007/s10904-014-0143-8] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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46
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Hartnett TE, Ladewig K, O’Connor AJ, Hartley PG, McLean KM. Size and Phase Control of Cubic Lyotropic Liquid Crystal Nanoparticles. J Phys Chem B 2014; 118:7430-9. [DOI: 10.1021/jp502898a] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Terence E. Hartnett
- Department
of Chemical and Biomolecular Engineering and Particulate Fluids Processing
Centre (PFPC), The University of Melbourne, Parkville, VIC 3010, Australia
- Commonwealth
Scientific and Industrial Research Organisation (CSIRO), Materials Science and Engineering, Clayton, VIC 3168, Australia
| | - Katharina Ladewig
- Department
of Chemical and Biomolecular Engineering and Particulate Fluids Processing
Centre (PFPC), The University of Melbourne, Parkville, VIC 3010, Australia
| | - Andrea J. O’Connor
- Department
of Chemical and Biomolecular Engineering and Particulate Fluids Processing
Centre (PFPC), The University of Melbourne, Parkville, VIC 3010, Australia
| | - Patrick G. Hartley
- Commonwealth
Scientific and Industrial Research Organisation (CSIRO), Materials Science and Engineering, Clayton, VIC 3168, Australia
| | - Keith M. McLean
- Commonwealth
Scientific and Industrial Research Organisation (CSIRO), Materials Science and Engineering, Clayton, VIC 3168, Australia
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47
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Sun W, Vallooran JJ, Zabara A, Mezzenga R. Controlling enzymatic activity and kinetics in swollen mesophases by physical nano-confinement. NANOSCALE 2014; 6:6853-6859. [PMID: 24831024 DOI: 10.1039/c4nr01394h] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Bicontinuous lipid cubic mesophases are widely investigated as hosting matrices for functional enzymes to build biosensors and bio-devices due to their unique structural characteristics. However, the enzymatic activity within standard mesophases (in-meso) is severely hindered by the relatively small diameter of the mesophase aqueous channels, which provide only limited space for enzymes, and restrict them into a highly confined environment. We show that the enzymatic activity of a model enzyme, horseradish peroxidase (HRP), can be accurately controlled by relaxing its confinement within the cubic phases' water channels, when the aqueous channel diameters are systematically swollen with varying amount of hydration-enhancing sugar ester. The in-meso activity and kinetics of HRP are then systematically investigated by UV-vis spectroscopy, as a function of the size of the aqueous mesophase channels. The enzymatic activity of HRP increases with the swelling of the water channels. In swollen mesophases with water channel diameter larger than the HRP size, the enzymatic activity is more than double that measured in standard mesophases, approaching again the enzymatic activity of free HRP in bulk water. We also show that the physically-entrapped enzymes in the mesophases exhibit a restricted-diffusion-induced initial lag period and report the first observation of in-meso enzymatic kinetics significantly deviating from the normal Michaelis-Menten behaviour observed in free solutions, with deviations vanishing when enzyme confinement is released by swelling the mesophase.
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Affiliation(s)
- Wenjie Sun
- ETH Zurich, Food and Soft Materials Science, Institute of Food, Nutrition & Health, Department of Health Science and Technology, Schmelzbergstrasse 9, CH-8092 Zurich, Switzerland.
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48
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Nilsson C, Østergaard J, Larsen SW, Larsen C, Urtti A, Yaghmur A. PEGylation of phytantriol-based lyotropic liquid crystalline particles--the effect of lipid composition, PEG chain length, and temperature on the internal nanostructure. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2014; 30:6398-6407. [PMID: 24833115 DOI: 10.1021/la501411w] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Poly(ethylene glycol)-grafted 1,2-distearoyl-sn-glycero-3-phosphoethanolamines (DSPE-mPEGs) are a family of amphiphilic lipopolymers attractive in formulating injectable long-circulating nanoparticulate drug formulations. In addition to long circulating liposomes, there is an interest in developing injectable long-circulating drug nanocarriers based on cubosomes and hexosomes by shielding and coating the dispersed particles enveloping well-defined internal nonlamellar liquid crystalline nanostructures with hydrophilic PEG segments. The present study attempts to shed light on the possible PEGylation of these lipidic nonlamellar liquid crystalline particles by using DSPE-mPEGs with three different block lengths of the hydrophilic PEG segment. The effects of lipid composition, PEG chain length, and temperature on the morphology and internal nanostructure of these self-assembled lipidic aqueous dispersions based on phytantriol (PHYT) were investigated by means of synchrotron small-angle X-ray scattering and Transmission Electron Cryo-Microscopy. The results suggest that the used lipopolymers are incorporated into the water-PHYT interfacial area and induce a significant effect on the internal nanostructures of the dispersed submicrometer-sized particles. The hydrophilic domains of the internal liquid crystalline nanostructures of these aqueous dispersions are functionalized, i.e., the hydrophilic nanochannels of the internal cubic Pn3m and Im3m phases are significantly enlarged in the presence of relatively small amounts of the used DSPE-mPEGs. It is evident that the partial replacement of PHYT by these PEGylated lipids could be an attractive approach for the surface modification of cubosomal and hexosomal particles. These PEGylated nanocarriers are particularly attractive in designing injectable cubosomal and hexosomal nanocarriers for loading drugs and/or imaging probes.
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Affiliation(s)
- Christa Nilsson
- Department of Pharmacy, Faculty of Health and Medical Sciences, University of Copenhagen , Universitetsparken 2, DK-2100 Copenhagen, Denmark
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49
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Angelov B, Angelova A, Filippov SK, Drechsler M, Štěpánek P, Lesieur S. Multicompartment lipid cubic nanoparticles with high protein upload: millisecond dynamics of formation. ACS NANO 2014; 8:5216-26. [PMID: 24742149 DOI: 10.1021/nn5012946] [Citation(s) in RCA: 122] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Membrane shapes, produced by dynamically assembled lipid/protein architectures, are crucial for both physiological functions and the design of therapeutic nanotechnologies. Here we investigate the dynamics of lipid membrane-neurotrophic BDNF protein complexes formation and ordering in nanoparticles, with the purpose of innovation in nanostructure-based neuroprotection and biomimetic nanoarchitectonics. The kinetic pathway of membrane states associated with rapidly occurring nonequilibrium self-assembled lipid/protein nanoarchitectures was determined by millisecond time-resolved small-angle X-ray scattering (SAXS) at high resolution. The neurotrophin binding and millisecond trafficking along the flexible membranes induced an unusual overlay of channel-network architectures including two coexisting cubic lattices epitaxially connected to lamellar membrane stacks. These time-resolved membrane processes, involving intercalation of discrete stiff proteins in continuous soft membranes, evidence stepwise curvature control mechanisms. The obtained three-phase liquid-crystalline nanoparticles of neurotrophic composition put forward important advancements in multicompartment soft-matter nanostructure design.
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Affiliation(s)
- Borislav Angelov
- Institute of Macromolecular Chemistry, Academy of Sciences of the Czech Republic , Heyrovsky Sq. 2, CZ-16206 Prague, Czech Republic
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Sadeghpour A, Pirolt F, Iglesias GR, Glatter O. Lipid transfer between submicrometer sized Pickering ISAsome emulsions and the influence of added hydrogel. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2014; 30:2639-2647. [PMID: 24559265 DOI: 10.1021/la404583y] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Transfer of lipids between droplets in Pickering emulsions has been studied by time-resolved small-angle X-ray scattering (SAXS). The special features of self-assembled liquid-crystalline phases have been applied to examine the kinetics of internal phase reorganization imposed by lipid release and uptake by the droplets. The findings reveal faster transfer kinetics in Pickering emulsions than in emulsions stabilized with Pluronic F127. It is shown that the transfer kinetics can be accelerated by adding free surfactant to the dispersions and that this acceleration becomes more dominant when micelles are formed. The effect of immobilization of the droplets has been studied by incorporating them into the appropriate hydrogel network. The droplets are arrested, and the transfer slows down significantly at high enough concentrations of the hydrogel where nonergodic systems are obtained.
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Affiliation(s)
- Amin Sadeghpour
- Department of Chemistry, Karl-Franzens-University Graz , Heinrichstraße 28, 8010 Graz, Austria
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