1
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Roy B, Guha P, Chang CH, Nahak P, Karmakar G, Bykov AG, Akentiev AV, Noskov BA, Patra A, Dutta K, Ghosh C, Panda AK. Effect of cationic dendrimer on membrane mimetic systems in the form of monolayer and bilayer. Chem Phys Lipids 2024; 258:105364. [PMID: 38040405 DOI: 10.1016/j.chemphyslip.2023.105364] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2023] [Revised: 10/01/2023] [Accepted: 11/26/2023] [Indexed: 12/03/2023]
Abstract
Interactions between a zwitterionic phospholipid, 1, 2-dipalmitoyl-sn-glycero-3-phosphatidylcholine (DPPC) and four anionic phospholipids dihexadecyl phosphate (DHP), 1, 2-dimyristoyl-sn-glycero-3-phosphoglycerol (DMPG), 1, 2-dipalmitoyl-sn-glycero-3-phosphate (DPP) and 1, 2-dipalmitoyl-sn-glycero-3-phospho ethanol (DPPEth) in combination with an additional amount of 30 mol% cholesterol were separately investigated at air-buffer interface through surface pressure (π) - area (A) measurements. π-A isotherm derived parameters revealed maximum negative deviation from ideality for the mixtures comprising 30 mol% anionic lipids. Besides the film functionality, structural changes of the monomolecular films at different surface pressures in the absence and presence of polyamidoamine (PAMAM, generation 4), a cationic dendrimer, were visualised through Brewster angle microscopy and fluorescence microscopic studies. Fluidity/rigidity of monolayers were assessed by surface dilatational rheology studies. Effect of PAMAM on the formation of adsorbed monolayer, due to bilayer disintegration of liposomes (DPPC:anionic lipids= 7:3 M/M, and 30 mol% cholesterol) were monitored by surface pressure (π) - time (t) isotherms. Bilayer disintegration kinetics were dependent on lipid head group and chain length, besides dendrimer concentration. Such studies are considered to be an in vitro cell membrane model where the alteration of molecular orientation play important roles in understanding the nature of interaction between the dendrimer and cell membrane. Liposome-dendrimer aggregates were nontoxic to breast cancer cell line as well as in doxorubicin treated MDA-MB-468 cell line suggesting their potential as drug delivery systems.
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Affiliation(s)
- Biplab Roy
- Department of Chemistry, University of North Bengal, Darjeeling 734 013, West Bengal, India; Chemistry of Interfaces Group, Luleå University of Technology, SE-971 87 Luleå, Sweden
| | - Pritam Guha
- Department of Chemistry, University of North Bengal, Darjeeling 734 013, West Bengal, India; Department for Biomaterials Research, Polymer Institute, Slovak Academy of Sciences, 845 41 Bratislava, Slovakia
| | - Chien-Hsiang Chang
- Department of Chemical Engineering, National Cheng Kung University, Tainan, Taiwan
| | - Prasant Nahak
- Department of Chemistry, University of North Bengal, Darjeeling 734 013, West Bengal, India
| | - Gourab Karmakar
- Department of Chemistry, University of North Bengal, Darjeeling 734 013, West Bengal, India
| | - Alexey G Bykov
- Department of Colloid Chemistry, St. Petersburg State University, Universitetsky pr. 26, 198504 St. Petersburg, Russia
| | - Alexander V Akentiev
- Department of Colloid Chemistry, St. Petersburg State University, Universitetsky pr. 26, 198504 St. Petersburg, Russia
| | - Boris A Noskov
- Department of Colloid Chemistry, St. Petersburg State University, Universitetsky pr. 26, 198504 St. Petersburg, Russia
| | - Anuttam Patra
- Chemistry of Interfaces Group, Luleå University of Technology, SE-971 87 Luleå, Sweden
| | - Kunal Dutta
- Department of Human Physiology, Vidyasagar University, Midnapore 721102, West Bengal, India
| | - Chandradipa Ghosh
- Department of Human Physiology, Vidyasagar University, Midnapore 721102, West Bengal, India
| | - Amiya Kumar Panda
- Department of Chemistry, Vidyasagar University, Midnapore 721102, West Bengal, India.
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2
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Song J, Levenson R, Santos J, Velazquez L, Zhang F, Fygenson D, Wu W, Morse DE. Reflectin Proteins Bind and Reorganize Synthetic Phospholipid Vesicles. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2020; 36:2673-2682. [PMID: 32097553 DOI: 10.1021/acs.langmuir.9b03632] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The reflectin proteins have been extensively studied for their role in reflectance in cephalopods. In the recently evolved Loliginid squids, these proteins and the structural color they regulate are dynamically tunable, enhancing their effectiveness for camouflage and communication. In these species, the reflectins are found in highest concentrations within the structurally tunable, membrane enclosed, periodically stacked lamellae of subcellular Bragg reflectors and in the intracellular vesicles of specialized skin cells known as iridocytes and leuocophores, respectively. To better understand the interactions between the reflectins and the membrane structures that encompass them, we analyzed the interactions of two purified reflectins with synthetic phospholipid membrane vesicles similar in composition to cellular membranes, using confocal fluorescence microscopy and dynamic light scattering. The purified recombinant reflectins were found to drive multivalent vesicle agglomeration in a ratio-dependent and saturable manner. Extensive proteolytic digestion terminated with PMSF of the reflectin A1-vesicle complexes triggered energetic membrane rearrangement, resulting in vesicle fusion, fission, and tubulation. This behavior contrasted markedly with that of vesicles complexed with reflectin C, from which PMSF-terminated proteolysis only released the original size vesicles. Clues to the basis for this difference, residing in significant differences between the structures of the two reflectins, led to the suggestion that specific reflectin-membrane interactions may play a role in the ontogenetic formation, long-term maintenance, and/or dynamic behavior of their biophotonically active host membrane nanostructures. Similar energetic remodeling has been associated with osmotic stress in other membrane systems, suggesting a path to reconstitution of the biophotonic system in vitro.
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Affiliation(s)
- Junyi Song
- Department of Molecular, Cellular and Developmental Biology, University of California, Santa Barbara, California 93106-5100, United States
| | - Robert Levenson
- Department of Molecular, Cellular and Developmental Biology, University of California, Santa Barbara, California 93106-5100, United States
| | - Jerome Santos
- Department of Molecular, Cellular and Developmental Biology, University of California, Santa Barbara, California 93106-5100, United States
| | - Lourdes Velazquez
- Physics Department and California Nanosystems Institute, University of California, Santa Barbara, California 93106, United States
| | - Fan Zhang
- College of Sciences, Nanjing Agricultural University, Nanjing 210095, PR China
| | - Deborah Fygenson
- Physics Department and California Nanosystems Institute, University of California, Santa Barbara, California 93106, United States
| | - Wenjian Wu
- College of Liberal Arts and Science, National University of Defense Technology, Changsha, Hunan 410073, China
| | - Daniel E Morse
- Department of Molecular, Cellular and Developmental Biology, University of California, Santa Barbara, California 93106-5100, United States
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3
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Roy B, Guha P, Nahak P, Karmakar G, Maiti S, Mandal AK, Bykov AG, Akentiev AV, Noskov BA, Tsuchiya K, Torigoe K, Panda AK. Biophysical Correlates on the Composition, Functionality, and Structure of Dendrimer-Liposome Aggregates. ACS OMEGA 2018; 3:12235-12245. [PMID: 31459298 PMCID: PMC6645486 DOI: 10.1021/acsomega.8b01187] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/12/2018] [Accepted: 09/13/2018] [Indexed: 06/10/2023]
Abstract
Interaction between negatively charged liposomes and cationic polyamidoamine dendrimers of different generations was investigated through size, zeta potential, turbidity, electron microscopy, atomic force microscopy, fluorescence spectroscopy, and calorimetric studies. Liposomes with the binary combination of 1,2-dipalmitoyl-sn-glycero-3-phosphatidylcholine (DPPC) + dihexadecyl phosphate, DPPC + 1,2-dimyristoyl-sn-glycero-3-phosphoglycerol, DPPC + 1,2-dipalmitoyl-sn-glycero-3-phosphate, and DPPC + 1,2-dipalmitoyl-sn-glycero-3-phosphoethanol were stable up to 60 days. The electrostatic nature of dendrimer-lipid bilayer interaction was evidenced through charge neutralization and subsequent reversal upon added dendrimer to liposome. Dendrimer-liposome interaction depended on its generation (5 > 4 > 3) in addition to the charge, head groups, and hydrocarbon chain length of lipids. Fluorescence anisotropy and differential scanning calorimetry studies suggest the fluidization of the bilayer, although the surface rigidity was enhanced by the added dendrimers. Thermodynamic parameters of the interaction processes were evaluated by isothermal titration and differential scanning calorimetric studies. The binding processes were exothermic in nature. The enthalpy of transition of the chain melting of lipids decreased systematically with increasing dendrimer concentration and generation. Dendrimer-liposome aggregates were nontoxic to healthy human blood cell, suggesting the potential of such aggregates as drug delivery systems.
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Affiliation(s)
- Biplab Roy
- Department
of Chemistry, University of North Bengal, Darjeeling 734 013, West Bengal, India
| | - Pritam Guha
- Department
of Chemistry, University of North Bengal, Darjeeling 734 013, West Bengal, India
| | - Prasant Nahak
- Department
of Chemistry, University of North Bengal, Darjeeling 734 013, West Bengal, India
| | - Gourab Karmakar
- Department
of Chemistry, University of North Bengal, Darjeeling 734 013, West Bengal, India
| | - Souvik Maiti
- Proteomics
and Structural Biology Unit, CSIR-Institute
of Genomics and Integrative Biology, Mall Road, Delhi 110 007, India
| | - Amit Kumar Mandal
- Chemical
Biology Laboratory, Department of Sericulture, Raiganj University, Uttar Dinajpur 733134, West Bengal, India
| | - Alexey G. Bykov
- Department
of Colloid Chemistry, St. Petersburg State
University, Universitetsky pr. 26, 198504 St. Petersburg, Russia
| | - Alexander V. Akentiev
- Department
of Colloid Chemistry, St. Petersburg State
University, Universitetsky pr. 26, 198504 St. Petersburg, Russia
| | - Boris A. Noskov
- Department
of Colloid Chemistry, St. Petersburg State
University, Universitetsky pr. 26, 198504 St. Petersburg, Russia
| | - Koji Tsuchiya
- Department
of Pure and Applied Chemistry, Tokyo University
of Science, 2641 Yamazaki, Noda, Tokyo 278-8510, Japan
| | - Kanjiro Torigoe
- Department
of Pure and Applied Chemistry, Tokyo University
of Science, 2641 Yamazaki, Noda, Tokyo 278-8510, Japan
| | - Amiya Kumar Panda
- Department
of Chemistry and Chemical Technology, Vidyasagar
University, Midnapore 721102, West Bengal, India
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Sugikawa K, Kadota T, Matsuo K, Yasuhara K, Ikeda A. Growth of Anisotropic Gold Nanoparticle Assemblies via Liposome Fusion. MATERIALS (BASEL, SWITZERLAND) 2017; 10:E1317. [PMID: 29149039 PMCID: PMC5706264 DOI: 10.3390/ma10111317] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/29/2017] [Revised: 11/14/2017] [Accepted: 11/14/2017] [Indexed: 11/22/2022]
Abstract
Anisotropic assembly of nanoparticles (NPs) has attracted extensive attention because of the potential applications in materials science, biology, and medicine. However, assembly control (e.g., the number of assembled NPs) has not been adequately studied. Here, the growth of anisotropic gold NP assemblies on a liposome surface is reported. Citrate-coated gold NPs adsorbed on liposome surfaces were assembled in one dimension at temperatures above the phase transition temperature of the lipid bilayer. Growth of the anisotropic assemblies depended on the heating time. Absorption spectroscopy and transmission electron microscopy revealed that the gradual growth was attributed to liposome fusion, which was strongly affected by the size of the gold NPs. This method enabled us to precisely control the number of NPs in each anisotropic assembly. These results will enable the fabrication of functional materials based on NP assemblies and enable investigations of cell functions and disease causality.
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Affiliation(s)
- Kouta Sugikawa
- Graduate School of Engineering, Hiroshima University, Higashi-Hiroshima 739-8527, Japan.
| | - Tatsuya Kadota
- Graduate School of Engineering, Hiroshima University, Higashi-Hiroshima 739-8527, Japan.
| | - Kotaro Matsuo
- Graduate School of Engineering, Hiroshima University, Higashi-Hiroshima 739-8527, Japan.
| | - Kazuma Yasuhara
- Graduate School of Materials Science, Nara Institute of Science and Technology, Nara 630-0192, Japan.
| | - Atsushi Ikeda
- Graduate School of Engineering, Hiroshima University, Higashi-Hiroshima 739-8527, Japan.
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5
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Uda RM, Kato Y, Takei M. Photo-triggered release from liposomes without membrane solubilization, based on binding to poly(vinyl alcohol) carrying a malachite green moiety. Colloids Surf B Biointerfaces 2016; 146:716-21. [DOI: 10.1016/j.colsurfb.2016.07.018] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2016] [Revised: 05/31/2016] [Accepted: 07/06/2016] [Indexed: 01/25/2023]
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6
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Roy B, Panda AK, Parimi S, Ametov I, Barnes T, Prestidge CA. Physico-chemical Studies on the Interaction of Dendrimers with Lipid Bilayers. 1. Effect of Dendrimer Generation and Liposome Surface Charge. J Oleo Sci 2014; 63:1185-93. [DOI: 10.5650/jos.ess14081] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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7
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Bogolubsky AV, Grishchenko A, Pipko SE, Konovets A, Chuprina A, Tolmachev A, Boyko AN, Chekotylo A, Lukin O. A solution-phase parallel synthesis of alkylated guanidines from thioisocyanates and amines. Mol Divers 2013; 17:471-7. [DOI: 10.1007/s11030-013-9444-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2013] [Accepted: 04/09/2013] [Indexed: 11/28/2022]
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8
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9
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Jin H, Liu Y, Zheng Y, Huang W, Zhou Y, Yan D. Cytomimetic large-scale vesicle aggregation and fusion based on host-guest interaction. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2012; 28:2066-2072. [PMID: 22129210 DOI: 10.1021/la203857s] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Herein, we have shown a large-scale cell-mimetic (cytomimetic) aggregation process by using cell-sized polymer vesicles as the building blocks and intervesicular host-guest molecular recognition interactions as the driving force. We first prepared the hyperbranched polymer vesicles named branched polymersomes (BPs) around 5-10 μm through the aqueous self-assembly of a hyperbranched multiarm copolymer of HBPO-star-PEO [HBPO = hyperbranched poly(3-ethyl-3-oxetanemethanol); PEO = poly(ethylene oxide)]. Subsequently, adamantane-functionalized BPs (Ada-BPs) or β-cyclodextrin-functionalized BPs (CD-BPs) were prepared through the coassembly of HBPO-star-PEO and Ada-modified HBPO-star-PEO (HBPO-star-PEO-Ada), or of HBPO-star-PEO and CD-modified HBPO-star-PEO (HBPO-star-PEO-CD), respectively. Macroscopic vesicle aggregates were obtained by mixing CD-BPs and Ada-BPs. The intervesicular host-guest recognition interactions between β-CD units in CD-BPs and Ada units in Ada-BPs, which were proved by (1)H nuclear Overhauser effect spectroscopy (NOESY) spectrum and the fluorescence probe method, are responsible for the vesicle aggregation. Additionally, the vesicle fusion events happened frequently in the process of vesicle aggregation, which were certified by double-labeling fluorescent assay, real-time observation, content mixing assay, and component mixing assay.
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Affiliation(s)
- Haibao Jin
- School of Chemistry and Chemical Engineering, State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, PR China
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10
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Tsai HC, Imae T, Calderó G, Solans C. Two-photon confocal imaging study: Cell uptake of two photon dyes-labeled PAMAM dendrons in HeLa cells. J Biomed Mater Res A 2012; 100:746-56. [DOI: 10.1002/jbm.a.33283] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2011] [Revised: 09/14/2011] [Accepted: 09/26/2011] [Indexed: 11/05/2022]
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11
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Jin H, Zheng Y, Liu Y, Cheng H, Zhou Y, Yan D. Reversible and Large-Scale Cytomimetic Vesicle Aggregation: Light-Responsive Host-Guest Interactions. Angew Chem Int Ed Engl 2011. [DOI: 10.1002/ange.201103164] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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12
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Jin H, Zheng Y, Liu Y, Cheng H, Zhou Y, Yan D. Reversible and Large-Scale Cytomimetic Vesicle Aggregation: Light-Responsive Host-Guest Interactions. Angew Chem Int Ed Engl 2011; 50:10352-6. [DOI: 10.1002/anie.201103164] [Citation(s) in RCA: 105] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2011] [Indexed: 11/08/2022]
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13
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Paleos CM, Tsiourvas D, Sideratou Z. Interaction of Vesicles: Adhesion, Fusion and Multicompartment Systems Formation. Chembiochem 2011; 12:510-21. [DOI: 10.1002/cbic.201000614] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2010] [Indexed: 11/06/2022]
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14
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Hadorn M, Eggenberger Hotz P. Encapsulated Multi-vesicle Assemblies of Programmable Architecture: Towards Personalized Healthcare. BIOMEDICAL ENGINEERING SYSTEMS AND TECHNOLOGIES 2011. [DOI: 10.1007/978-3-642-18472-7_11] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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15
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Arginine end-functionalized poly(l-lysine) dendrigrafts for the stabilization and controlled release of insulin. J Colloid Interface Sci 2010; 351:433-41. [DOI: 10.1016/j.jcis.2010.07.072] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2010] [Revised: 07/29/2010] [Accepted: 07/30/2010] [Indexed: 11/22/2022]
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16
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Parimi S, Barnes TJ, Callen DF, Prestidge CA. Mechanistic insight into cell growth, internalization, and cytotoxicity of PAMAM dendrimers. Biomacromolecules 2010; 11:382-9. [PMID: 20038138 DOI: 10.1021/bm9010134] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
We report on the role of PAMAM dendrimer concentration and generation (G2, G4, G6) on cell growth and cytotoxicity in HEK293T and HeLa cell lines and make comparisons with dendrimer-induced leakage from liposomes to probe the mechanisms in action. Specifically, we observed a striking transition from cell growth enhancement to a reduction in cell viability at a critical PAMAM dendrimer concentration, that is, approximately 500 nM. Confocal microscopy studies show evidence of a transition from cell membrane adhesion to cell internalization and cell nucleus interaction at equivalent dendrimer concentrations. A dendrimer concentration window of 500-700 nM was identified for effective cell internalization without significant cytotoxicity. Though liposome leakage correlated with cytotoxicity, no quantitative agreement was observed, that is, cells are 100 times (based on surface coverage) more resistant to dendrimers than liposomes. These findings have significant implications in the design of effective drug/gene delivery vehicles based on dendrimers.
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Affiliation(s)
- Srinivas Parimi
- Ian Wark Research Institute, ARC Special Research Centre for Particle and Material Interfaces, University of South Australia, Mawson Lakes, SA, Australia
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17
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Murgia S, Falchi AM, Mano M, Lampis S, Angius R, Carnerup AM, Schmidt J, Diaz G, Giacca M, Talmon Y, Monduzzi M. Nanoparticles from lipid-based liquid crystals: emulsifier influence on morphology and cytotoxicity. J Phys Chem B 2010; 114:3518-25. [PMID: 20170140 DOI: 10.1021/jp9098655] [Citation(s) in RCA: 92] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Here, monoolein-based nanoparticles (NPs), obtained through fragmentation of bulk liquid crystalline phases, and stabilized by two different emulsifiers, namely, Pluronic F127 (PF127) and lauroylcholine chloride (LCh), are investigated for structural features and for short-term in vitro cytotoxicity. Depending on the emulsifiers, different morphologies of the lipid NPs (cubosomes and liposomes) are obtained, as demonstrated by cryo-TEM images. Although NPs offer many advantages in medical applications and various chemicals used for their preparation are under investigation, so far there are no standardized procedures to evaluate cell biocompatibility. Two different protocols to evaluate the impact of these lipid NPs on biological systems are presented. Results show that nanoparticles stabilized by PF127 (cubosomes) display a relevant toxicity toward different cell lines, whereas those stabilized by LCh (liposomes) affect cell viability at a much lesser extent.
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Affiliation(s)
- Sergio Murgia
- Department of Chemical Science, Cagliari University, CNBS and CSGI, ss 554, bivio Sestu, 09042 Monserrato (CA), Italy
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18
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Liu J, Zou A, Mu B. Surfactin effect on the physicochemical property of PC liposome. Colloids Surf A Physicochem Eng Asp 2010. [DOI: 10.1016/j.colsurfa.2010.03.021] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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19
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Hadorn M, Eggenberger Hotz P. DNA-mediated self-assembly of artificial vesicles. PLoS One 2010; 5:e9886. [PMID: 20360854 PMCID: PMC2845621 DOI: 10.1371/journal.pone.0009886] [Citation(s) in RCA: 59] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2009] [Accepted: 03/04/2010] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND Although multicompartment systems made of single unilamellar vesicles offer the potential to outperform single compartment systems widely used in analytic, synthetic, and medical applications, their use has remained marginal to date. On the one hand, this can be attributed to the binary character of the majority of the current tethering protocols that impedes the implementation of real multicomponent or multifunctional systems. On the other hand, the few tethering protocols theoretically providing multicompartment systems composed of several distinct vesicle populations suffer from the readjustment of the vesicle formation procedure as well as from the loss of specificity of the linking mechanism over time. METHODOLOGY/PRINCIPAL FINDINGS In previous studies, we presented implementations of multicompartment systems and resolved the readjustment of the vesicle formation procedure as well as the loss of specificity by using linkers consisting of biotinylated DNA single strands that were anchored to phospholipid-grafted biotinylated PEG tethers via streptavidin as a connector. The systematic analysis presented herein provides evidences for the incorporation of phospholipid-grafted biotinylated PEG tethers to the vesicle membrane during vesicle formation, providing specific anchoring sites for the streptavidin loading of the vesicle membrane. Furthermore, DNA-mediated vesicle-vesicle self-assembly was found to be sequence-dependent and to depend on the presence of monovalent salts. CONCLUSIONS/SIGNIFICANCE This study provides a solid basis for the implementation of multi-vesicle assemblies that may affect at least three distinct domains. (i) Analysis. Starting with a minimal system, the complexity of a bottom-up system is increased gradually facilitating the understanding of the components and their interaction. (ii) Synthesis. Consecutive reactions may be implemented in networks of vesicles that outperform current single compartment bioreactors in versatility and productivity. (iii) Personalized medicine. Transport and targeting of long-lived, pharmacologically inert prodrugs and their conversion to short-lived, active drug molecules directly at the site of action may be accomplished if multi-vesicle assemblies of predefined architecture are used.
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Affiliation(s)
- Maik Hadorn
- Artificial Intelligence Laboratory, Department of Informatics, University of Zurich, Zurich, Switzerland.
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20
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Bonduelle CV, Gillies ER. Dendritic Guanidines as Efficient Analogues of Cell Penetrating Peptides. Pharmaceuticals (Basel) 2010; 3:636-666. [PMID: 27713272 PMCID: PMC4033973 DOI: 10.3390/ph3030636] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2010] [Revised: 02/10/2010] [Accepted: 03/09/2010] [Indexed: 01/09/2023] Open
Abstract
The widespread application of cell penetrating agents to clinical therapeutics and imaging agents relies on the ability to prepare them on a large scale and to readily conjugate them to their cargos. Dendritic analogues of cell penetrating peptides, with multiple guanidine groups on their peripheries offer advantages as their high symmetry allows them to be efficiently synthesized, while orthogonal functionalities at their focal points allow them to be conjugated to cargo using simple synthetic methods. Their chemical structures and properties are also highly tunable as their flexibility and the number of guanidine groups can be tuned by altering the dendritic backbone or the linkages to the guanidine groups. This review describes the development of cell-penetrating dendrimers based on several different backbones, their structure-property relationships, and comparisons of their efficacies with those of known cell penetrating peptides. The toxicities of these dendritic guanidines are also reported as well as their application towards the intracellular delivery of biologically significant cargos including proteins and nanoparticles.
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Affiliation(s)
- Colin V Bonduelle
- Department of Chemistry, The University of Western Ontario, 1151 Richmond St., London, N6A 5B7, Canada
| | - Elizabeth R Gillies
- Department of Chemistry, The University of Western Ontario, 1151 Richmond St., London, N6A 5B7, Canada.
- Department of Chemical and Biochemical Engineering, The University of Western Ontario, 1151 Richmond St., London, N6A 5B9, Canada.
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21
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Mart RJ, Liem KP, Webb SJ. Creating Functional Vesicle Assemblies from Vesicles and Nanoparticles. Pharm Res 2009; 26:1701-10. [DOI: 10.1007/s11095-009-9880-8] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2008] [Accepted: 03/19/2009] [Indexed: 10/20/2022]
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22
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Ohori R, Uchida K, Saito A, Yajima H. Poly(ethylene glycol)-mediated Steric Stabilization of Complexes Formed between Negatively Charged Liposomes and Folate-conjugated Poly(amidoamine) Dendrimers in Water. CHEM LETT 2008. [DOI: 10.1246/cl.2008.324] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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23
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Newkome GR, Shreiner CD. Poly(amidoamine), polypropylenimine, and related dendrimers and dendrons possessing different 1→2 branching motifs: An overview of the divergent procedures. POLYMER 2008. [DOI: 10.1016/j.polymer.2007.10.021] [Citation(s) in RCA: 313] [Impact Index Per Article: 19.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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Wang X, Mart RJ, Webb SJ. Vesicle aggregation by multivalent ligands: relating crosslinking ability to surface affinity. Org Biomol Chem 2007; 5:2498-505. [PMID: 17637972 DOI: 10.1039/b706662g] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In an effort to improve the stability of our tissue-mimetic vesicle aggregates, we have investigated how increasing the valency of our multivalent crosslinking ligand, poly-l-histidine, affected both the extent of vesicle aggregation and the affinity of the multivalent ligand for the synthetic receptor Cu(1) embedded in the vesicle membranes. Although increasing ligand valency gave the anticipated increase in the size of the vesicle aggregates, isothermal calorimetric studies did not show the expected increase in the valence-corrected binding constant for the embedded receptors. To explain both observations, we have developed a simple new binding model that encompasses both multivalent binding to receptors on a single vesicle surface (intramembrane binding) and vesicle crosslinking (intermembrane binding).
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Affiliation(s)
- Xi Wang
- Manchester Interdisciplinary Biocentre and the School of Chemistry, University of Manchester, 131 Princess Street, Manchester, UK
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25
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Abstract
A compound was synthesized that binds to a phospholipid bilayer via a hydrophobic steroid thereby projecting a strong multi-hydrogen bonding unit into the surrounding water. As shown by light scattering, light microscopy, and cryo-HRSEM, this latter unit self-adheres and induces membrane-membrane attachments, as found in many biological systems.
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Affiliation(s)
- F M Menger
- Department of Chemistry, Emory University, Atlanta, Georgia 30322, USA.
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26
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Papagiannaros A, Dimas K, Papaioannou GT, Demetzos C. Doxorubicin–PAMAM dendrimer complex attached to liposomes: Cytotoxic studies against human cancer cell lines. Int J Pharm 2005; 302:29-38. [PMID: 16099117 DOI: 10.1016/j.ijpharm.2005.05.039] [Citation(s) in RCA: 85] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2005] [Revised: 05/16/2005] [Accepted: 05/29/2005] [Indexed: 11/28/2022]
Abstract
Liposomes composed of HePC:EPC:SA 10:10:0.1 (molar ratio) (1) and EPC:SA 10:0.1 (molar ratio) (2) were prepared and were used for incorporating the doxorubicin-PAMAM complex (3:1 molar ratio) (3). The doxorubicin-PAMAM complex was attached to liposomes and the incorporation efficiency was 91 and 95% for 1 and 2, respectively. The incorporation efficiency for doxorubicin into PAMAM was almost 97% while doxorubicin to PAMAM molar ratio was 3.56+/-0.04. The release rate of doxorubicin as doxorubicin-PAMAM complex from liposomes 1 and 2 and from the complex 3, was studied using buffers and 50% RPMI cell culture medium at 37 and 25 degrees C. The low release rate of doxorubicin as well as the high incorporation efficiency of doxorubicin-PAMAM complex into liposomes are considered as beneficial factors concerning the activity of doxorubicin. The cytotoxic activity of the liposomal formulation 1 incorporating doxorubicin-PAMAM complex, based on doxorubicin activity, was compared to that of 2 incorporating doxorubicin-PAMAM complex and to that of 3. The results showed that complex 1 was the most active formulation against all cancer cell lines compared to that of 2 and 3. Liposomal formulations composed of lipids and of a drug-dendrimer complex could be characterized as modulatory liposomal controlled release system (MLCRS), and could provide benefits to the delivery of drugs and modulate their release.
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Affiliation(s)
- Aristarchos Papagiannaros
- Department of Pharmaceutical Technology, School of Pharmacy, National and Kapodistrian University of Athens, Panepistimiopolis, 15771 Zografou Athens, Greece
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27
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Pantos A, Tsiourvas D, Nounesis G, Paleos CM. Interaction of functional dendrimers with multilamellar liposomes: design of a model system for studying drug delivery. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2005; 21:7483-90. [PMID: 16042483 DOI: 10.1021/la0510331] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
Multilamellar liposomes consisting of phosphatidylcholine-cholesterol-dihexadecyl phosphate (19:9.5:1 molar ratio) and dispersed in aqueous or phosphate buffer solutions were interacted with poly(propylene imine) dendrimers which were partially functionalized with guanidinium groups. The remaining toxic external primary amino groups of the dendrimers were reacted with propylene oxide, affording the corresponding hydroxylated derivatives. Microscopic, zeta-potential, and dynamic light scattering techniques have shown that liposomal-dendrimeric molecular recognition occurs due to the interaction between the complementary phosphate and guanidinium groups. Calcein liposomal entrapment experiments demonstrate a limited leakage, i.e., less than 13%, following liposomes interaction with the modified dendrimers. Calorimetric studies indicate that the enthalpy of the interaction is dependent on the number of guanidinium groups present at the dendrimeric surface and the medium. The process is reversible, and redispersion of the aggregates occurs by adding concentrated phosphate buffer. Two corticosteroid drugs, i.e., betamethasone dipropionate and betamethasone valerate, were encapsulated into the functionalized dendrimers. Drug transport from guanidinylated dendrimers to multilamellar liposomes ranges from 40% to 85%, and it is also dependent on the medium and the degree of dendrimer guanidinylation.
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Affiliation(s)
- Alexandros Pantos
- Institutes of Physical Chemistry and of Radioisotopes and Radiodiagnostic Products, NCSR "Demokritos", 15310 Aghia Paraskevi, Attiki, Greece
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28
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Tsogas I, Tsiourvas D, Nounesis G, Paleos CM. Interaction of poly-L-arginine with dihexadecyl phosphate/phosphatidylcholine liposomes. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2005; 21:5997-6001. [PMID: 15952852 DOI: 10.1021/la050475+] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
In the present study, mixed liposomes of dihexadecyl phosphate sodium salt:phosphatidylcholine:cholesterol at a 1:19:9.5 molar ratio were allowed to interact with poly-L-arginine at temperatures below and above the main phase transition of the liposomal membrane. The interaction led to the formation of aggregates, which gradually increased in size and eventually precipitated. It was, however, possible, during the initial stage of the experiments, when the ratio of guanidinium group relative to phosphate was smaller than ca. 40%, to determine their size and charge and observe their morphology in aqueous dispersion. Fluorescence experiments established that the liposomes are not ruptured during their interaction with poly-L-arginine. Instead, they are attached at the polypeptide chain through the guanidinium-phosphate complementary pair. Fluorescence quenching experiments indicated that the poly-L-arginine chain is accessible for interaction with iodides dissolved in the aqueous phase when the temperature of the liposomal dispersion is below the main lipid phase transition. It is, however, partitioned in the interior of the membrane at temperatures exceeding this main lipid phase transition.
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Affiliation(s)
- Ioannis Tsogas
- Institutes of Physical Chemistry and Radioisotopes & Radiodiagnostic Products, NCSR "Demokritos", 15310 Aghia Paraskevi, Attiki, Greece
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29
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Bordi F, Cametti C, Sennato S. Polyions act as an electrostatic glue for mesoscopic particle aggregates. Chem Phys Lett 2005. [DOI: 10.1016/j.cplett.2005.04.107] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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30
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Tsogas I, Tsiourvas D, Paleos CM, Giatrellis S, Nounesis G. Interaction of l-arginine with dihexadecylphosphate unilamellar liposomes: the effect of the lipid phase organization. Chem Phys Lipids 2005; 134:59-68. [PMID: 15752464 DOI: 10.1016/j.chemphyslip.2004.12.007] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2004] [Revised: 12/16/2004] [Accepted: 12/20/2004] [Indexed: 11/23/2022]
Abstract
The interaction of L-arginine with unilamellar liposomes of dihexadecylphosphate sodium salt (DHP-Na) has been investigated using calorimetric, light scattering, fluorescence spectroscopy and zeta-potential techniques. Heating from room temperature, the bilayer exhibits a phase transition from a subgel (L(c)) to the gel (L(beta')) phase as well as a pre-transition (L(beta')-P(beta')), which is followed by the main lipid phase transition (P(beta')-L(alpha)). Direct studies of the interaction of L-arginine with the DHP-Na bilayers via isothermal titration calorimetry at 27 degrees C depict significant differences between samples in the L(c) and the L(beta') phases reflecting the effect of molecular organization of the lipids upon the interaction. While L-arginine has only a small impact upon the L(c) to L(beta') phase transition, it affects more significantly the transition temperature as well as the shape of the DSC peaks of the main lipid phase transition. Based on fluorescence and zeta-potential studies, the permeability of L-arginine through the liposomal membrane is higher within the temperature range of the main lipid phase transition. Encapsulated l-arginine obstructs the formation of the subgel phase.
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Affiliation(s)
- Ioannis Tsogas
- Institute of Physical Chemistry, NCSR Demokritos, 153 10 Aghia Paraskevi, Greece
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31
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Paleos CM, Tsiourvas D. Interaction between complementary liposomes: a process leading to multicompartment systems formation. J Mol Recognit 2005; 19:60-7. [PMID: 16312020 DOI: 10.1002/jmr.758] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
Interaction of complementary liposomes induces a series of processes, involving reorganization of their membrane lipids, which lead to the formation of large aggregates. In several cases these aggregates exhibit multicompartment structures and only primitively mimic, in some aspects at least, the multicompartmental features of cells. Similar multicompartment structures were repeatedly obtained following the interaction of a diversity of complementary liposomal pairs. Thus, a working hypothesis is proposed, according to which, molecular recognition of liposomes induces the formation of multicompartment structures.
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Affiliation(s)
- Constantinos M Paleos
- Institute of Physical Chemistry, NCSR Demokritos, 15310 Aghia Paraskevi, Attiki, Greece.
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32
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33
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Literature Alerts. J Microencapsul 2003. [DOI: 10.3109/02652040309178054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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