51
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Taschauer A, Polzer W, Pöschl S, Metz S, Tepe N, Decker S, Cyran N, Scholda J, Maier J, Bloß H, Anton M, Hofmann T, Ogris M, Sami H. Combined Chemisorption and Complexation Generate siRNA Nanocarriers with Biophysics Optimized for Efficient Gene Knockdown and Air-Blood Barrier Crossing. ACS APPLIED MATERIALS & INTERFACES 2020; 12:30095-30111. [PMID: 32515194 PMCID: PMC7467563 DOI: 10.1021/acsami.0c06608] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
Current nucleic acid (NA) nanotherapeutic approaches face challenges because of shortcomings such as limited control on loading efficiency, complex formulation procedure involving purification steps, low load of NA cargo per nanoparticle, endosomal trapping, and hampered release inside the cell. When combined, these factors significantly limit the amount of biologically active NA delivered per cell in vitro, delivered dosages in vivo for a prolonged biological effect, and the upscalability potential, thereby warranting early consideration in the design and developmental phase. Here, we report a versatile nanotherapeutic platform, termed auropolyplexes, for improved and efficient delivery of small interfering RNA (siRNA). Semitelechelic, thiolated linear polyethylenimine (PEI) was chemisorbed onto gold nanoparticles to endow them with positive charge. A simple two-step complexation method offers tunable loading of siRNA at concentrations relevant for in vivo studies and the flexibility for inclusion of multiple functionalities without any purification steps. SiRNA was electrostatically complexed with these cationic gold nanoparticles and further condensed with polycation or polyethyleneglycol-polycation conjugates. The resulting auropolyplexes ensured complete complexation of siRNA into nanoparticles with a high load of ∼15,500 siRNA molecules/nanoparticle. After efficient internalization into the tumor cell, an 80% knockdown of the luciferase reporter gene was achieved. Auropolyplexes were applied intratracheally in Balb/c mice for pulmonary delivery, and their biodistribution were studied spatio-temporally and quantitatively by optical tomography. Auropolyplexes were well tolerated with ∼25% of the siRNA dose remaining in the lungs after 24 h. Importantly, siRNA was released from auropolyplexes in vivo and a fraction also crossed the air-blood barrier, which was then excreted via kidneys, whereas >97% of gold nanoparticles were retained in the lung. Linear PEI-based auropolyplexes offer a combination of successful endosomal escape and better biocompatibility profile in vivo. Taken together, combined chemisorption and complexation endow auropolyplexes with crucial biophysical attributes, enabling a versatile and upscalable nanogold-based platform for siRNA delivery in vitro and in vivo.
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Affiliation(s)
- Alexander Taschauer
- Faculty of Life
Sciences, Center of Pharmaceutical Sciences, Department of Pharmaceutical
Chemistry, Laboratory of MacroMolecular Cancer Therapeutics (MMCT), University of Vienna, Althanstrasse 14, 1090 Vienna, Austria
| | - Wolfram Polzer
- Faculty of Life
Sciences, Center of Pharmaceutical Sciences, Department of Pharmaceutical
Chemistry, Laboratory of MacroMolecular Cancer Therapeutics (MMCT), University of Vienna, Althanstrasse 14, 1090 Vienna, Austria
| | - Stefan Pöschl
- Faculty of Life
Sciences, Center of Pharmaceutical Sciences, Department of Pharmaceutical
Chemistry, Laboratory of MacroMolecular Cancer Therapeutics (MMCT), University of Vienna, Althanstrasse 14, 1090 Vienna, Austria
| | - Slavica Metz
- Faculty of Life
Sciences, Center of Pharmaceutical Sciences, Department of Pharmaceutical
Chemistry, Laboratory of MacroMolecular Cancer Therapeutics (MMCT), University of Vienna, Althanstrasse 14, 1090 Vienna, Austria
| | - Nathalie Tepe
- Department of Environmental Geosciences, University of Vienna, Althanstraße 14, 1090 Vienna, Austria
| | - Simon Decker
- Faculty of Life
Sciences, Center of Pharmaceutical Sciences, Department of Pharmaceutical
Chemistry, Laboratory of MacroMolecular Cancer Therapeutics (MMCT), University of Vienna, Althanstrasse 14, 1090 Vienna, Austria
| | - Norbert Cyran
- Core Facility Cell
Imaging and Ultrastructure Research (CIUS), University of Vienna, 1090 Vienna, Austria
| | - Julia Scholda
- Faculty of Life
Sciences, Center of Pharmaceutical Sciences, Department of Pharmaceutical
Chemistry, Laboratory of MacroMolecular Cancer Therapeutics (MMCT), University of Vienna, Althanstrasse 14, 1090 Vienna, Austria
| | - Julia Maier
- Faculty of Life
Sciences, Center of Pharmaceutical Sciences, Department of Pharmaceutical
Chemistry, Laboratory of MacroMolecular Cancer Therapeutics (MMCT), University of Vienna, Althanstrasse 14, 1090 Vienna, Austria
| | - Hermann Bloß
- Faculty of Life
Sciences, Center of Pharmaceutical Sciences, Department of Pharmaceutical
Chemistry, Laboratory of MacroMolecular Cancer Therapeutics (MMCT), University of Vienna, Althanstrasse 14, 1090 Vienna, Austria
| | - Martina Anton
- Institutes of Molecular Immunology and Experimental Oncology, Klinikum
rechts der Isar, Technische Universität
München, 81675 Munich, Germany
| | - Thilo Hofmann
- Department of Environmental Geosciences, University of Vienna, Althanstraße 14, 1090 Vienna, Austria
| | - Manfred Ogris
- Faculty of Life
Sciences, Center of Pharmaceutical Sciences, Department of Pharmaceutical
Chemistry, Laboratory of MacroMolecular Cancer Therapeutics (MMCT), University of Vienna, Althanstrasse 14, 1090 Vienna, Austria
- Center for NanoScience (CeNS), Ludwig Maximilians
University, 80539 Munich, Germany
| | - Haider Sami
- Faculty of Life
Sciences, Center of Pharmaceutical Sciences, Department of Pharmaceutical
Chemistry, Laboratory of MacroMolecular Cancer Therapeutics (MMCT), University of Vienna, Althanstrasse 14, 1090 Vienna, Austria
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52
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Ibáñez-Redín G, Materon EM, Furuta RHM, Wilson D, do Nascimento GF, Melendez ME, Carvalho AL, Reis RM, Oliveira ON, Gonçalves D. Screen-printed electrodes modified with carbon black and polyelectrolyte films for determination of cancer marker carbohydrate antigen 19-9. Mikrochim Acta 2020; 187:417. [DOI: 10.1007/s00604-020-04404-6] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2020] [Accepted: 06/17/2020] [Indexed: 11/24/2022]
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53
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Bodakowska-Boczniewicz J, Garncarek Z. Immobilization of Naringinase from Aspergillus Niger on a Magnetic Polysaccharide Carrier. Molecules 2020; 25:E2731. [PMID: 32545562 PMCID: PMC7356055 DOI: 10.3390/molecules25122731] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2020] [Revised: 06/10/2020] [Accepted: 06/10/2020] [Indexed: 02/07/2023] Open
Abstract
Naringinase is an enzymatic complex used in the deglycosylation of compounds with a high application potential in the food and pharmaceutical industries. The aim of the study was to immobilize naringinase from Aspergillus niger KMS on a magnetic carrier obtained on the basis of carob gum activated by polyethyleneimine. Response surface methodology was used to optimize naringinase immobilization taking into account the following factors: pH, immobilization time, initial concentration of naringinase and immobilization temperature. The adsorption of the enzyme on a magnetic carrier was a reversible process. The binding force of naringinase was increased by crosslinking the enzyme with the carrier using dextran aldehyde. The crosslinked enzyme had better stability in an acidic environment and at a higher temperature compared to the free form. The immobilization and stabilization of naringinase by dextran aldehyde on the magnetic polysaccharide carrier lowered the activation energy, thus increasing the catalytic capacity of the investigated enzyme and increasing the activation energy of the thermal deactivation process, which confirms higher stability of the immobilized enzyme in comparison with free naringinase. The preparation of crosslinked naringinase retained over 80% of its initial activity after 10 runs of naringin hydrolysis from fresh and model grapefruit juice.
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Affiliation(s)
| | - Zbigniew Garncarek
- Department of Biotechnology and Food Analysis, Wroclaw University of Economics and Business, 53–345 Wroclaw, Poland;
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54
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Ma G, Xu X, Tesfai M, Wang H, Xu P. Developing anti-biofouling and energy-efficient cation-exchange membranes using conductive polymers and nanomaterials. J Memb Sci 2020. [DOI: 10.1016/j.memsci.2020.118034] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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55
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Herrera SE, Agazzi ML, Cortez ML, Marmisollé WA, Tagliazucchi M, Azzaroni O. Redox-active polyamine-salt aggregates as multistimuli-responsive soft nanoparticles. Phys Chem Chem Phys 2020; 22:7440-7450. [PMID: 32215420 DOI: 10.1039/d0cp00077a] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Polyamine-salt aggregates have become promising soft materials in nanotechnology due to their easy preparation process and pH-responsiveness. Here, we report the use of hexacyanoferrate(ii) and hexacyanoferrate(iii) as electroactive crosslinking agents for the formation of nanometer-sized redox-active polyamine-redox-salt aggregates (rPSA) in bulk suspension. This nanoplatform can be selectively assembled or disassembled under different stimuli such as redox environment, pH and ionic strength. By changing the charge of the building blocks, external triggers allow switching the system between two phase states: aggregate-free solution or colloidal rPSA dispersion. The stimuli-activated modulation of the assembly/disassembly processes opens a path to exploit rPSA in technologies based on smart nanomaterials.
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Affiliation(s)
- Santiago E Herrera
- Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas (INIFTA), departamento de Química, Facultad de Ciencias Exactas, Universidad Nacional de La Plata - CONICET, Sucursal 4, Casilla de Correo 16, 1900 La Plata, Argentina.
| | - Maximiliano L Agazzi
- Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas (INIFTA), departamento de Química, Facultad de Ciencias Exactas, Universidad Nacional de La Plata - CONICET, Sucursal 4, Casilla de Correo 16, 1900 La Plata, Argentina.
| | - M Lorena Cortez
- Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas (INIFTA), departamento de Química, Facultad de Ciencias Exactas, Universidad Nacional de La Plata - CONICET, Sucursal 4, Casilla de Correo 16, 1900 La Plata, Argentina.
| | - Waldemar A Marmisollé
- Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas (INIFTA), departamento de Química, Facultad de Ciencias Exactas, Universidad Nacional de La Plata - CONICET, Sucursal 4, Casilla de Correo 16, 1900 La Plata, Argentina.
| | - Mario Tagliazucchi
- Departamento de Química Inorgánica, Analítica y Química Física, INQUIMAE-CONICET, Facultad de Ciencias Exactas y Naturales, Ciudad Universitaria, Pabellón 2, Buenos Aires C1428EHA, Argentina
| | - Omar Azzaroni
- Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas (INIFTA), departamento de Química, Facultad de Ciencias Exactas, Universidad Nacional de La Plata - CONICET, Sucursal 4, Casilla de Correo 16, 1900 La Plata, Argentina.
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56
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Yap JY, Mat Yaakob S, Rabat NE, Shamsuddin MR, Man Z. Release kinetics study and anti-corrosion behaviour of a pH-responsive ionic liquid-loaded halloysite nanotube-doped epoxy coating. RSC Adv 2020; 10:13174-13184. [PMID: 35492118 PMCID: PMC9051460 DOI: 10.1039/d0ra01215g] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2020] [Accepted: 03/04/2020] [Indexed: 11/21/2022] Open
Abstract
This study focuses on the release kinetics of inhibitor-loaded nanocontainers and the anti-corrosive properties of epoxy coatings doped and undoped with the nanocontainers. In this work, 1-butyl-3-methylimidazolium chloride [Bmim][Cl] was loaded into halloysite nanotubes (HNTs), and the loaded HNTs were encapsulated with polyethyleneimine (PEI)/polyacrylic acid (PAA) and poly(diallyldimethylammonium chloride) (PDADMAC)/polyacrylic acid (PAA) to allow controlled release upon pH stimuli. The polyelectrolyte layer deposition was characterized using zeta potential analysis, and the release profiles were evaluated in neutral, acidic, and alkaline media. The release kinetics was studied and found to conform to the Ritger-Peppas and Korsmeyer-Peppas model, and the results proved that the combination of weak polyelectrolytes (PEI and PAA) provided a good response for up to 50% release of [Bmim][Cl] in acidic and alkaline media after 72 hours. The loaded HNTs encapsulated with the PEI/PAA combination were incorporated into an epoxy coating matrix and applied on an X52 steel substrate. The corrosion resistance of the coated and uncoated substrates was evaluated using electrochemical impedance spectroscopy (EIS) after immersion in a 3.5 wt% NaCl solution up to 72 hours. An artificial defect was created on the coating prior to immersion to evaluate the active corrosion inhibition ability. The coating doped with the smart pH-responsive halloysite nanotubes showed promising results in corrosion protectiveness even after 72 hours of exposure to a salt solution through EIS and SEM.
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Affiliation(s)
- Jen Yang Yap
- Department of Chemical Engineering, Universiti Teknologi PETRONAS Bandar Seri Iskandar 32610 Perak Malaysia
| | - Sarini Mat Yaakob
- Department of Chemical Engineering, Universiti Teknologi PETRONAS Bandar Seri Iskandar 32610 Perak Malaysia
| | - Nurul Ekmi Rabat
- Centre for Contaminant Control and Utilization (CencoU), Institute of Contaminant Management, Universiti Teknologi PETRONAS Bandar Seri Iskandar 32610 Perak Malaysia
| | - Muhammad Rashid Shamsuddin
- Center for Biofuel and Biochemical Research (CBBR), Institute for Sustainable Living, Universiti Teknologi PETRONAS 32610 Bandar Seri Iskandar Perak Malaysia
| | - Zakaria Man
- Centre for Contaminant Control and Utilization (CencoU), Institute of Contaminant Management, Universiti Teknologi PETRONAS Bandar Seri Iskandar 32610 Perak Malaysia
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57
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Liao SC, Ting CW, Chiang WH. Functionalized polymeric nanogels with pH-sensitive benzoic-imine cross-linkages designed as vehicles for indocyanine green delivery. J Colloid Interface Sci 2020; 561:11-22. [DOI: 10.1016/j.jcis.2019.11.109] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2019] [Revised: 11/03/2019] [Accepted: 11/27/2019] [Indexed: 12/13/2022]
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58
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Zeng X, Liu Y, Kang Y, Li Q, Xia Y, Zhu Y, Hou H, Uddin MH, Gengenbach TR, Xia D, Sun C, Mccarthy DT, Deletic A, Yu J, Zhang X. Simultaneously Tuning Charge Separation and Oxygen Reduction Pathway on Graphitic Carbon Nitride by Polyethylenimine for Boosted Photocatalytic Hydrogen Peroxide Production. ACS Catal 2020. [DOI: 10.1021/acscatal.9b05247] [Citation(s) in RCA: 142] [Impact Index Per Article: 35.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Xiangkang Zeng
- Department of Chemical Engineering, Monash University, Clayton, Victoria 3800, Australia
| | - Yue Liu
- Department of Chemical Engineering, Monash University, Clayton, Victoria 3800, Australia
| | - Yuan Kang
- Department of Chemical Engineering, Monash University, Clayton, Victoria 3800, Australia
| | - Qinye Li
- Department of Chemical Engineering, Monash University, Clayton, Victoria 3800, Australia
| | - Yun Xia
- Department of Chemical Engineering, Monash University, Clayton, Victoria 3800, Australia
| | - Yinlong Zhu
- Department of Chemical Engineering, Monash University, Clayton, Victoria 3800, Australia
| | - Huilin Hou
- Department of Chemical Engineering, Monash University, Clayton, Victoria 3800, Australia
| | - Md Hemayet Uddin
- The Melbourne Centre for Nanofabrication, Clayton, Victoria 3168, Australia
| | | | - Dehua Xia
- School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou, 510275, China
| | - Chenghua Sun
- Department of Chemistry and Biotechnology, and Center for Translational Atomaterials, Swinburne University of Technology, Hawthorn, Victoria 3122, Australia
| | - David T. Mccarthy
- Environmental and Public Health Microbiology Laboratory, Department of Civil Engineering, Monash University, Clayton, Victoria 3800, Australia
| | - Ana Deletic
- Water Research Centre, School of Civil and Environmental Engineering, University of New South Wales, Sydney, New South Wales 2052, Australia
| | - Jiaguo Yu
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, China
| | - Xiwang Zhang
- Department of Chemical Engineering, Monash University, Clayton, Victoria 3800, Australia
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59
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Mauri E, Veglianese P, Papa S, Rossetti A, De Paola M, Mariani A, Posel Z, Posocco P, Sacchetti A, Rossi F. Effects of primary amine-based coatings on microglia internalization of nanogels. Colloids Surf B Biointerfaces 2020; 185:110574. [DOI: 10.1016/j.colsurfb.2019.110574] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2019] [Revised: 10/08/2019] [Accepted: 10/09/2019] [Indexed: 12/20/2022]
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60
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Khoury LR, Popa I. Chemical unfolding of protein domains induces shape change in programmed protein hydrogels. Nat Commun 2019; 10:5439. [PMID: 31784506 PMCID: PMC6884551 DOI: 10.1038/s41467-019-13312-0] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2019] [Accepted: 10/30/2019] [Indexed: 12/31/2022] Open
Abstract
Programmable behavior combined with tailored stiffness and tunable biomechanical response are key requirements for developing successful materials. However, these properties are still an elusive goal for protein-based biomaterials. Here, we use protein-polymer interactions to manipulate the stiffness of protein-based hydrogels made from bovine serum albumin (BSA) by using polyelectrolytes such as polyethyleneimine (PEI) and poly-L-lysine (PLL) at various concentrations. This approach confers protein-hydrogels with tunable wide-range stiffness, from ~10-64 kPa, without affecting the protein mechanics and nanostructure. We use the 6-fold increase in stiffness induced by PEI to program BSA hydrogels in various shapes. By utilizing the characteristic protein unfolding we can induce reversible shape-memory behavior of these composite materials using chemical denaturing solutions. The approach demonstrated here, based on protein engineering and polymer reinforcing, may enable the development and investigation of smart biomaterials and extend protein hydrogel capabilities beyond their conventional applications.
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Affiliation(s)
- Luai R Khoury
- Department of Physics, University of Wisconsin-Milwaukee, 3135 North Maryland Ave., Milwaukee, WI, 53211, USA.
| | - Ionel Popa
- Department of Physics, University of Wisconsin-Milwaukee, 3135 North Maryland Ave., Milwaukee, WI, 53211, USA.
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61
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Preparation of thin film composite nano-filtration membranes for brackish water softening based on the reaction between functionalized UF membranes and polyethyleneimine. J Memb Sci 2019. [DOI: 10.1016/j.memsci.2019.117207] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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62
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Avais M, Chattopadhyay S. Waterborne pH responsive hydrogels: Synthesis, characterization and selective pH responsive behavior around physiological pH. POLYMER 2019. [DOI: 10.1016/j.polymer.2019.121701] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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63
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Odd-even effects on hydration of natural polyelectrolyte multilayers: An in situ synchrotron FTIR microspectroscopy study. J Colloid Interface Sci 2019; 553:720-733. [DOI: 10.1016/j.jcis.2019.06.036] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2019] [Revised: 06/07/2019] [Accepted: 06/11/2019] [Indexed: 11/20/2022]
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64
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Hu Y, He Z, Hao Y, Gong L, Pang M, Howard GP, Ahn HH, Brummet M, Chen K, Liu HW, Ke X, Zhu J, Anderson CF, Cui H, Ullman CG, Carrington CA, Pomper MG, Seo JH, Mittal R, Minn I, Mao HQ. Kinetic Control in Assembly of Plasmid DNA/Polycation Complex Nanoparticles. ACS NANO 2019; 13:10161-10178. [PMID: 31503450 DOI: 10.1021/acsnano.9b03334.s004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Polyelectrolyte complex (PEC) nanoparticles assembled from plasmid DNA (pDNA) and polycations such as linear polyethylenimine (lPEI) represent a major nonviral delivery vehicle for gene therapy tested thus far. Efforts to control the size, shape, and surface properties of pDNA/polycation nanoparticles have been primarily focused on fine-tuning the molecular structures of the polycationic carriers and on assembly conditions such as medium polarity, pH, and temperature. However, reproducible production of these nanoparticles hinges on the ability to control the assembly kinetics, given the nonequilibrium nature of the assembly process and nanoparticle composition. Here we adopt a kinetically controlled mixing process, termed flash nanocomplexation (FNC), that accelerates the mixing of pDNA solution with polycation lPEI solution to match the PEC assembly kinetics through turbulent mixing in a microchamber. This achieves explicit control of the kinetic conditions for pDNA/lPEI nanoparticle assembly, as demonstrated by the tunability of nanoparticle size, composition, and pDNA payload. Through a combined experimental and simulation approach, we prepared pDNA/lPEI nanoparticles having an average of 1.3 to 21.8 copies of pDNA per nanoparticle and average size of 35 to 130 nm in a more uniform and scalable manner than bulk mixing methods. Using these nanoparticles with defined compositions and sizes, we showed the correlation of pDNA payload and nanoparticle formulation composition with the transfection efficiencies and toxicity in vivo. These nanoparticles exhibited long-term stability at -20 °C for at least 9 months in a lyophilized formulation, validating scalable manufacture of an off-the-shelf nanoparticle product with well-defined characteristics as a gene medicine.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | | | | | | | | | - Christopher G Ullman
- Cancer Targeting Systems , Chesterford Research Park , Cambridge , CB10 1XL , U.K
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65
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Hu Y, He Z, Hao Y, Liu HW, Gong L, Howard G, Ahn HH, Brummet M, Ke X, Anderson C, Seo JH, Zhu J, Chen K, Pang Wan Rion M, Cui H, Ullman CG, Carrington CA, Pomper MG, Mittal R, Minn I, Mao HQ. Kinetic Control in Assembly of Plasmid DNA/Polycation Complex Nanoparticles. ACS NANO 2019; 13:10161-10178. [PMID: 31503450 PMCID: PMC7293580 DOI: 10.1021/acsnano.9b03334] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
Polyelectrolyte complex (PEC) nanoparticles assembled from plasmid DNA (pDNA) and polycations such as linear polyethylenimine (lPEI) represent a major nonviral delivery vehicle for gene therapy tested thus far. Efforts to control the size, shape, and surface properties of pDNA/polycation nanoparticles have been primarily focused on fine-tuning the molecular structures of the polycationic carriers and on assembly conditions such as medium polarity, pH, and temperature. However, reproducible production of these nanoparticles hinges on the ability to control the assembly kinetics, given the nonequilibrium nature of the assembly process and nanoparticle composition. Here we adopt a kinetically controlled mixing process, termed flash nanocomplexation (FNC), that accelerates the mixing of pDNA solution with polycation lPEI solution to match the PEC assembly kinetics through turbulent mixing in a microchamber. This achieves explicit control of the kinetic conditions for pDNA/lPEI nanoparticle assembly, as demonstrated by the tunability of nanoparticle size, composition, and pDNA payload. Through a combined experimental and simulation approach, we prepared pDNA/lPEI nanoparticles having an average of 1.3 to 21.8 copies of pDNA per nanoparticle and average size of 35 to 130 nm in a more uniform and scalable manner than bulk mixing methods. Using these nanoparticles with defined compositions and sizes, we showed the correlation of pDNA payload and nanoparticle formulation composition with the transfection efficiencies and toxicity in vivo. These nanoparticles exhibited long-term stability at -20 °C for at least 9 months in a lyophilized formulation, validating scalable manufacture of an off-the-shelf nanoparticle product with well-defined characteristics as a gene medicine.
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Affiliation(s)
- Yizong Hu
- Department of Biomedical Engineering, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA
- Institute for NanoBioTechnology, Johns Hopkins University, Baltimore, MD 21218, USA
| | - Zhiyu He
- Institute for NanoBioTechnology, Johns Hopkins University, Baltimore, MD 21218, USA
- Department of Materials Science and Engineering, Johns Hopkins University, Baltimore, MD 21218, USA
| | - Yue Hao
- Department of Mechanical Engineering, Johns Hopkins University, Baltimore, MD 21218, USA
| | - Heng-wen Liu
- Institute for NanoBioTechnology, Johns Hopkins University, Baltimore, MD 21218, USA
- Department of Materials Science and Engineering, Johns Hopkins University, Baltimore, MD 21218, USA
| | - Like Gong
- Institute for NanoBioTechnology, Johns Hopkins University, Baltimore, MD 21218, USA
- Department of Materials Science and Engineering, Johns Hopkins University, Baltimore, MD 21218, USA
| | - Gregory Howard
- Department of Biomedical Engineering, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA
- Institute for NanoBioTechnology, Johns Hopkins University, Baltimore, MD 21218, USA
| | - Hye-Hyun Ahn
- Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA
| | - Mary Brummet
- Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA
| | - Xiyu Ke
- Institute for NanoBioTechnology, Johns Hopkins University, Baltimore, MD 21218, USA
- Department of Materials Science and Engineering, Johns Hopkins University, Baltimore, MD 21218, USA
| | - Caleb Anderson
- Institute for NanoBioTechnology, Johns Hopkins University, Baltimore, MD 21218, USA
- Department of Chemical and Biomolecular Engineering, Johns Hopkins University, Baltimore, MD 21218, USA
| | - Jung-Hee Seo
- Department of Mechanical Engineering, Johns Hopkins University, Baltimore, MD 21218, USA
| | - Jinchang Zhu
- Institute for NanoBioTechnology, Johns Hopkins University, Baltimore, MD 21218, USA
- Department of Materials Science and Engineering, Johns Hopkins University, Baltimore, MD 21218, USA
| | - Kuntao Chen
- Institute for NanoBioTechnology, Johns Hopkins University, Baltimore, MD 21218, USA
- Department of Materials Science and Engineering, Johns Hopkins University, Baltimore, MD 21218, USA
| | - Marion Pang Wan Rion
- Department of Biomedical Engineering, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA
- Institute for NanoBioTechnology, Johns Hopkins University, Baltimore, MD 21218, USA
| | - Honggang Cui
- Institute for NanoBioTechnology, Johns Hopkins University, Baltimore, MD 21218, USA
- Department of Chemical and Biomolecular Engineering, Johns Hopkins University, Baltimore, MD 21218, USA
| | | | | | - Martin G. Pomper
- Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA
- Institute for NanoBioTechnology, Johns Hopkins University, Baltimore, MD 21218, USA
| | - Rajat Mittal
- Department of Mechanical Engineering, Johns Hopkins University, Baltimore, MD 21218, USA
| | - Il Minn
- Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA
- Institute for NanoBioTechnology, Johns Hopkins University, Baltimore, MD 21218, USA
| | - Hai-Quan Mao
- Department of Biomedical Engineering, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA
- Translational Tissue Engineering Center, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA
- Institute for NanoBioTechnology, Johns Hopkins University, Baltimore, MD 21218, USA
- Department of Materials Science and Engineering, Johns Hopkins University, Baltimore, MD 21218, USA
- Correspondence should be addressed to Dr. Hai-Quan Mao: 3400 N. Charles Street, Croft Hall 100, Institute for NanoBioTechnology, Johns Hopkins University, Baltimore, MD, 21218, USA.
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Ulkoski D, Bak A, Wilson JT, Krishnamurthy VR. Recent advances in polymeric materials for the delivery of RNA therapeutics. Expert Opin Drug Deliv 2019; 16:1149-1167. [PMID: 31498013 DOI: 10.1080/17425247.2019.1663822] [Citation(s) in RCA: 47] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Introduction: The delivery of nucleic acid therapeutics through non-viral carriers face multiple biological barriers that reduce their therapeutic efficiency. Despite great progress, there remains a significant technological gap that continues to limit clinical translation of these nanocarriers. A number of polymeric materials are being exploited to efficiently deliver nucleic acids and achieve therapeutic effects. Areas covered: We discuss the recent advances in the polymeric materials for the delivery of nucleic acid therapeutics. We examine the use of common polymer architectures and highlight the challenges that exist for their development from bench side to clinic. We also provide an overview of the most notable improvements made to circumvent such challenges, including structural modification and stimuli-responsive approaches, for safe and effective nucleic acid delivery. Expert opinion: It has become apparent that a universal carrier that follows 'one-size' fits all model cannot be expected for delivery of all nucleic acid therapeutics. Carriers need to be designed to exhibit sensitivity and specificity toward individual targets diseases/indications, and relevant subcellular compartments, each of which possess their own unique challenges. The ability to devise synthetic methods that control the molecular architecture enables the future development that allow for the construction of 'intelligent' designs.
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Affiliation(s)
- David Ulkoski
- Advanced Drug Delivery, Pharmaceutical Sciences, R&D, AstraZeneca , Boston , USA
| | - Annette Bak
- Advanced Drug Delivery, Pharmaceutical Sciences, R&D, AstraZeneca , Gothenburg , Sweden
| | - John T Wilson
- Department of Chemical and Biomolecular Engineering, Vanderbilt University , Nashville , TN , USA
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67
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Tsai ES, Himmelstoß SF, Wiesholler LM, Hirsch T, Hall EAH. Upconversion nanoparticles for sensing pH. Analyst 2019; 144:5547-5557. [PMID: 31403643 DOI: 10.1039/c9an00236g] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Upconversion nanoparticles (UCNPs) can provide a vehicle for chemical imaging by coupling chemically sensitive dyes and quenchers. The mechanism for coupling of two anthraquinone dyes, Calcium Red and Alizarin Red S, was investigated as a function of pH. The green emission band of the UCNPs was quenched by a pH-dependent inner filter effect (IFE) while the red emission band remained unchanged and acted as the reference signal for ratiometric pH measurements. Contrary to previous expectation, there was little evidence for a resonance energy transfer (RET) mechanism even when the anthraquinones were attached onto the UCNPs through electrostatic attraction. Since the UCNPs are point emitters, only emitters close to the surface of the UCNP are within the expected Förster distance and UC-RET is <10%. The theoretical and experimental analysis of the interaction between UCNPs and pH-sensitive quenchers will allow the design of UCNP pH sensors for determination of pH via IFE.
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Affiliation(s)
- Evaline S Tsai
- Department of Chemical Engineering and Biotechnology, University of Cambridge, Philippa Fawcett Drive, Cambridge CB3 0AS, UK.
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68
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Bar C, Çağlar N, Uz M, Mallapragada SK, Altinkaya SA. Development of a High-Flux Thin-Film Composite Nanofiltration Membrane with Sub-Nanometer Selectivity Using a pH and Temperature-Responsive Pentablock Co-Polymer. ACS APPLIED MATERIALS & INTERFACES 2019; 11:31367-31377. [PMID: 31424905 DOI: 10.1021/acsami.9b10273] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Producing block co-polymer-based nanofiltration (NF) membranes with sharp molecular weight cutoffs via an efficient method exhibiting persistent size-based separation quality is challenging. In this study, this challenge was addressed by reporting a facile approach to fabricate pentablock co-polymer (PBC)-based thin-film composite (TFC) NF membranes. The PBC, consisting of temperature-responsive Pluronic F127 (PEO-b-PPO-b-PEO) middle blocks and pH-responsive poly(N,N-(diethylamino)ethyl methacrylate) end blocks, were synthesized by atom-transfer radical polymerization. This polymer was then attached electrostatically to the surface of polysulfone/sulfonated polyether-sulfone support membranes fabricated using a non-solvent-induced phase separation technique. The conformational changes of the PBC chains in response to pH and temperature determined the pure water flux and neutral solute (PEG 1000) rejection performance of TFC membranes. Permeability of the membranes increased from 13.0 ± 0.63 to 15.9 ± 0.06 L/m2·h·bar and from 6.7 ± 0.00 to 13.9 ± 0.07 L/m2·h·bar by changing the solution pH from 4 to 8.5 and temperature from 4 to 25 °C, respectively. The pH- and temperature-responsive conformational changes did not affect the PEG 1000 rejection and membrane pore radius, which remained constant at ∼89% and ∼0.9 nm, respectively. This important finding was attributed to the high grafting density of co-polymer chains, resulting in spatial limitations among the grafted chains. The pore size of ∼0.9 nm achieved with the proposed membrane design is the smallest size reported so far for membranes fabricated from block co-polymers. TFC membranes demonstrated high stability and maintained their flux and rejection values under both static (storage in an acidic solution for up to 1 month) and dynamic (filtering PEG 1000 solution over 1 week) conditions. Pentablock co-polymers enable a NF membrane with a sharp molecular weight cutoff suitable for size-selective separations. The membrane fabrication technique proposed in this study is a scalable and promising alternative that does not involve complex synthetic routes.
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Affiliation(s)
- Canbike Bar
- Department of Chemical Engineering, Faculty of Engineering , Izmir Institute of Technology , Gulbahce Campus , Urla, Izmir 35430 , Turkey
| | - Nağahan Çağlar
- Department of Chemical Engineering, Faculty of Engineering , Izmir Institute of Technology , Gulbahce Campus , Urla, Izmir 35430 , Turkey
| | - Metin Uz
- Department of Chemical and Biological Engineering , Iowa State University , 2114 Sweeney Hall , Ames , Iowa 50011 , United States
| | - Surya K Mallapragada
- Department of Chemical and Biological Engineering , Iowa State University , 2114 Sweeney Hall , Ames , Iowa 50011 , United States
| | - Sacide Alsoy Altinkaya
- Department of Chemical Engineering, Faculty of Engineering , Izmir Institute of Technology , Gulbahce Campus , Urla, Izmir 35430 , Turkey
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69
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Levit SL, Walker RC, Tang C. Rapid, Single-Step Protein Encapsulation via Flash NanoPrecipitation. Polymers (Basel) 2019; 11:E1406. [PMID: 31461925 PMCID: PMC6780228 DOI: 10.3390/polym11091406] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2019] [Revised: 08/22/2019] [Accepted: 08/23/2019] [Indexed: 01/09/2023] Open
Abstract
Flash NanoPrecipitation (FNP) is a rapid method for encapsulating hydrophobic materials in polymer nanoparticles with high loading capacity. Encapsulating biologics such as proteins remains a challenge due to their low hydrophobicity (logP < 6) and current methods require multiple processing steps. In this work, we report rapid, single-step protein encapsulation via FNP using bovine serum albumin (BSA) as a model protein. Nanoparticle formation involves complexation and precipitation of protein with tannic acid and stabilization with a cationic polyelectrolyte. Nanoparticle self-assembly is driven by hydrogen bonding and electrostatic interactions. Using this approach, high encapsulation efficiency (up to ~80%) of protein can be achieved. The resulting nanoparticles are stable at physiological pH and ionic strength. Overall, FNP is a rapid, efficient platform for encapsulating proteins for various applications.
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Affiliation(s)
- Shani L Levit
- Chemical and Life Science Engineering Department, Virginia Commonwealth University, Richmond, VA 23284-3028, USA
| | - Rebecca C Walker
- Chemical and Life Science Engineering Department, Virginia Commonwealth University, Richmond, VA 23284-3028, USA
| | - Christina Tang
- Chemical and Life Science Engineering Department, Virginia Commonwealth University, Richmond, VA 23284-3028, USA.
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70
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Trifonov A, Stemmer A, Tel-Vered R. Power Generation by Selective Self-Assembly of Biocatalysts. ACS NANO 2019; 13:8630-8638. [PMID: 31310711 DOI: 10.1021/acsnano.9b03013] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Through a careful chemical and bioelectronic design we have created a system that uses self-assembly of enzyme-nanoparticle hybrids to yield bioelectrocatalytic functionality and to enable the harnessing of electrical power from biomass. Here we show that mixed populations of hybrids acting as catalyst carriers for clean energy production can be efficiently stored, self-assembled on functionalized stationary surfaces, and magnetically re-collected to make the binding sites on the surfaces available again. The methodology is based on selective interactions occurring between chemically modified surfaces and ligand-functionalized hybrids. The design of a system with minimal cross-talk between the particles, outstanding selective binding of the hybrids at the electrode surfaces, and direct anodic and cathodic electron transfer pathways leads to mediator-less bioelectrocatalytic transformations which are implemented in the construction of a fast self-assembling, membrane-less fructose/O2 biofuel cell.
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Affiliation(s)
- Alexander Trifonov
- Nanotechnology Group , ETH Zürich , Säumerstrasse 4 , CH - 8803 Rüschlikon , Switzerland
| | - Andreas Stemmer
- Nanotechnology Group , ETH Zürich , Säumerstrasse 4 , CH - 8803 Rüschlikon , Switzerland
| | - Ran Tel-Vered
- Nanotechnology Group , ETH Zürich , Säumerstrasse 4 , CH - 8803 Rüschlikon , Switzerland
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71
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Poly(N,N-dimethylaminopropyl acrylamide)-grafted Sepharose FF: A new anion exchanger of very high capacity and uptake rate for protein chromatography. J Chromatogr A 2019; 1597:187-195. [DOI: 10.1016/j.chroma.2019.03.035] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2019] [Revised: 03/18/2019] [Accepted: 03/19/2019] [Indexed: 02/06/2023]
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72
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Abeyratne-Perera HK, Ogharandukun E, Chandran PL. Complex-type N-glycans on VSV-G pseudotyped HIV exhibit 'tough' sialic and 'brittle' mannose self-adhesions. SOFT MATTER 2019; 15:4525-4540. [PMID: 31099376 DOI: 10.1039/c9sm00579j] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
The complex-type glycan shields of eukaryotic cells have a core layer of mannose residues buried under tiers of sugars that end with sialic acid (SA) residues. We investigate if the self-latching of mannose residues, earlier reported in pure monolayer studies, also manifests in the setting of a complex-type glycan shield. Would distal SA residues impede access to the mannose core? The interactions of mannobiose-, SA-, and lactose-coated probes with the complex-type VSV-G glycan shield on an HIV pseudovirus were studied with force-spectroscopy and gold-nanoparticle solutions. In force spectroscopy, the sugar probes can be forced to sample the depths of the glycan shield, whereas with sugar-coated nanoparticles, only interactions permitted by freely-diffusive contact occur. Deep-indentation mechanics was performed to verify the inferred structure of the engineered virus and to isolate the glycan shield layer for subsequent interaction studies. The adhesion between the sugar-probes and complex-type glycan shield was deconvoluted by comparing against the cross- and self- adhesions between the sugars in pure monolayers. Results from complementing systems were consistent with mannobiose-coated probes latching to the mannose core in the glycan shield, unhindered by the SA and distal sugars, with a short-range 'brittle' release of adhesion resulting in tightly coated viruses. SA-Coated probes, however, adhere to the terminal SA layer of a glycan shield with long-range and mechanically 'tough' adhesions resulting in large-scale virus aggregation. Lactose-coated probes exhibit ill-defined adherence to sialic residues. The selection and positioning of sugars within a glycan shield can influence how carbohydrate surfaces of different composition adhere.
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Affiliation(s)
- Hashanthi K Abeyratne-Perera
- Biochemistry and Molecular Biology Department, College of Medicine, 1011 LK Downing Hall 2300 6th Street, NW, Howard University, Washington, DC 20059, USA.
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73
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Akkus ZB, Nazir I, Jalil A, Tribus M, Bernkop-Schnürch A. Zeta Potential Changing Polyphosphate Nanoparticles: A Promising Approach To Overcome the Mucus and Epithelial Barrier. Mol Pharm 2019; 16:2817-2825. [PMID: 31070926 DOI: 10.1021/acs.molpharmaceut.9b00355] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The aim of the present study was to develop zeta potential-changing polyphosphate nanoparticles (pp-NPs) in order to overcome the diffusion barrier of the mucus gel layer and to provide an enhanced cellular uptake. pp-NPs were obtained by in situ gelation between cationic polyethylene imine and anionic polyphosphate. The resulting pp-NPs were characterized with regard to size and zeta potential. Phosphate release studies were carried out by incubation of pp-NPs with isolated as well as cell-associated intestinal alkaline phosphatase (IAP) and quantified by malachite green assay. Correspondingly, change in the zeta potential was measured, and pp-NPs were analyzed by scanning electron microscopy studies. Mucus permeation studies were performed with porcine intestinal mucus via the transwell insert method and rotating tube method. Furthermore, cell viability and cellular uptake were investigated on Caco-2 cells. The resulting pp-NPs displayed a mean size of 269.16 ± 1.12 nm and a zeta potential between -9 and -10 mV in the characterization studies. Within 4 h, a remarkable amount of phosphate was released from pp-NPs incubated with isolated IAP as well as cell-associated IAP and zeta potential raised up from -9.14 ± 0.45 to -1.75 ± 0.46 mV. Compared with dephosphorylated polyphosphate nanoparticles (de-pp-NPs), a significantly enhanced mucus permeation of pp-NPs was observed. Moreover, pp-NPs did not exhibit cytotoxicity. Cellular uptake increased 2.6-fold by conversion of pp-NPs to de-pp-NPs following enzymatic cleavage. Taking the comparatively simple preparation method and the high mucus-permeating properties of pp-NPs and high cellular uptake properties of de-pp-NPs into account, these nanocarriers might be promising novel tools for mucosal drug delivery.
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Affiliation(s)
- Zeynep Burcu Akkus
- Center for Chemistry and Biomedicine, Department of Pharmaceutical Technology, Institute of Pharmacy , University of Innsbruck , Innrain 80/82 , 6020 Innsbruck , Austria
| | - Imran Nazir
- Center for Chemistry and Biomedicine, Department of Pharmaceutical Technology, Institute of Pharmacy , University of Innsbruck , Innrain 80/82 , 6020 Innsbruck , Austria
- Department of Pharmacy , COMSATS University Islamabad , Abbottabad Campus , 22060 Abbottabad , Pakistan
| | - Aamir Jalil
- Center for Chemistry and Biomedicine, Department of Pharmaceutical Technology, Institute of Pharmacy , University of Innsbruck , Innrain 80/82 , 6020 Innsbruck , Austria
| | - Martina Tribus
- Center for Chemistry and Biomedicine, Department of Pharmaceutical Technology, Institute of Pharmacy , University of Innsbruck , Innrain 80/82 , 6020 Innsbruck , Austria
- Institute of Mineralogy and Petrography , University of Innsbruck , Innrain 52 , 6020 Innsbruck , Austria
| | - Andreas Bernkop-Schnürch
- Center for Chemistry and Biomedicine, Department of Pharmaceutical Technology, Institute of Pharmacy , University of Innsbruck , Innrain 80/82 , 6020 Innsbruck , Austria
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74
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Xu X, Wang Z, Yagoub H, Li X, Liang S, Jin Y, Zhu L, Yang S. Nanofiltration membrane constructed by tuning the chain interactions of polymer complexation. J Memb Sci 2019. [DOI: 10.1016/j.memsci.2019.02.055] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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75
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Hergli E, Aschi A. Polycation-globular protein complex: Ionic strength and chain length effects on the structure and properties. E-POLYMERS 2019. [DOI: 10.1515/epoly-2019-0014] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
AbstractThe effect of high salt concentration and pH on the binding of globular protein to polycation at different molar masses has been investigated by dynamic light scattering (DLS), turbidimetry and electrostatic modeling for the protein. In dilute concentration regime, DLS and pH titrations showed three remarkable pH transitions: pHc, the pH where soluble complexes of bovine serum albumin (BSA) and linear synthetic Polyethylenemine (PEI) are formed, pHc’ presents the end of primary soluble complex and pHφ presents the first appearance of microcoacervate droplets. All pH transitions increase with increasing NaCl concentration. The Adaptive Poisson-Boltzmann Solver (APBS) identify with precision the functional sites at the surface of BSA and shows that the strength of electrostatic interactions depends hugely on the variation of pH and ionic strength. At a very high concentration of salt, no remarkable effect on a mixture formed of a long chain of polycation and globular protein.
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Affiliation(s)
- Eya Hergli
- Université de Tunis El Manar, Faculté des Sciences de Tunis, LR99ES16 Laboratoire Physique de la Matière Molle et de la Modélisation Électromagnétique, Tunis, 2092, Tunisia
| | - Adel Aschi
- Université de Tunis El Manar, Faculté des Sciences de Tunis, LR99ES16 Laboratoire Physique de la Matière Molle et de la Modélisation Électromagnétique, Tunis, 2092, Tunisia
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76
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Gao Y, Jia L, Wang Q, Hu H, Zhao X, Chen D, Qiao M. pH/Redox Dual-Responsive Polyplex with Effective Endosomal Escape for Codelivery of siRNA and Doxorubicin against Drug-Resistant Cancer Cells. ACS APPLIED MATERIALS & INTERFACES 2019; 11:16296-16310. [PMID: 30997984 DOI: 10.1021/acsami.9b02016] [Citation(s) in RCA: 73] [Impact Index Per Article: 14.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
The enhanced endo-lysosomal sequestration still remains a big challenge in overcoming multidrug resistance (MDR). Herein, a dual-responsive polyplex with effective endo-lysosomal escape based on methoxypoly(ethylene glycol)-polylactide-polyhistidine-ss-oligoethylenimine (mPEG- b-PLA-PHis-ssOEI) was developed for codelivering MDR1 siRNA and doxorubicin (DOX). The polyplex showed good encapsulation of DOX and siRNA as well as triggered payload release in response to pH/redox stimuli because of the PHis protonation and the disulfide bond cleavage. The polyplex at an N/P ratio of 7 demonstrated a much higher payload delivery efficiency, MDR1 gene silence efficiency, cytotoxicity against MCF-7/ADR cell, and stronger MCF-7/ADR tumor growth inhibition than the polyplexes at higher N/P ratios. This was attributed to the stronger electrostatic attraction between siRNA and OEIs at higher N/P ratios that suppressed the release of MDR1 siRNA and OEIs, which played a dominant role in overcoming payload endo-lysosomal sequestration by the OEI-induced membrane permeabilization effect. Consequently, the polyplex with effective endo-lysosomal escape provides a rational approach for codelivery of siRNAs and chemotherapy agents for MDR reversal.
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MESH Headings
- ATP Binding Cassette Transporter, Subfamily B, Member 1/antagonists & inhibitors
- ATP Binding Cassette Transporter, Subfamily B, Member 1/chemistry
- ATP Binding Cassette Transporter, Subfamily B, Member 1/pharmacology
- Cell Line, Tumor
- Cell Proliferation/drug effects
- Doxorubicin/administration & dosage
- Doxorubicin/chemistry
- Drug Carriers/administration & dosage
- Drug Resistance, Neoplasm/drug effects
- Endosomes/chemistry
- Humans
- Hydrogen-Ion Concentration
- Lipids/chemistry
- MCF-7 Cells
- Nanoparticles/administration & dosage
- Nanoparticles/chemistry
- Neoplasms/drug therapy
- Neoplasms/pathology
- Polyesters/chemistry
- Polyethylene Glycols/chemistry
- RNA, Small Interfering/chemistry
- RNA, Small Interfering/genetics
- RNA, Small Interfering/pharmacology
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Affiliation(s)
| | - Li Jia
- Department of Pharmacy , Heze Medical College , Heze 274000 , P. R. China
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77
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Zhang HX, Zhang Y, Yin H. Genome Editing with mRNA Encoding ZFN, TALEN, and Cas9. Mol Ther 2019; 27:735-746. [PMID: 30803822 PMCID: PMC6453514 DOI: 10.1016/j.ymthe.2019.01.014] [Citation(s) in RCA: 122] [Impact Index Per Article: 24.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2018] [Revised: 01/17/2019] [Accepted: 01/19/2019] [Indexed: 12/18/2022] Open
Abstract
Genome-editing technologies based on programmable nucleases have significantly broadened our ability to make precise and direct changes in the genomic DNA of various species, including human cells. Delivery of programmable nucleases into the target tissue or cell is one of the pressing challenges in transforming the technology into medicine. In vitro-transcribed (IVT) mRNA-mediated delivery of nucleases has several advantages, such as transient expression with efficient in vivo and in vitro delivery, no genomic integration, a potentially low off-target rate, and high editing efficiency. This review focuses on key barriers related to IVT mRNA delivery, on developed modes of delivery, and on the application and future prospects of mRNA encoding nuclease-mediated genome editing in research and clinical trials.
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Affiliation(s)
- Hong-Xia Zhang
- Department of Urology, Zhongnan Hospital of Wuhan University, 430071 Wuhan, China; Medical Research Institute, Wuhan University, 430071 Wuhan, China
| | - Ying Zhang
- Medical Research Institute, Wuhan University, 430071 Wuhan, China.
| | - Hao Yin
- Department of Urology, Zhongnan Hospital of Wuhan University, 430071 Wuhan, China; Medical Research Institute, Wuhan University, 430071 Wuhan, China.
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78
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Choi S, Lim M, Zhao Y, Yu J. Hygroscopy-induced nanoparticle reshuffling in ionic-gold-residue-stabilized gold suprananoparticles. NANOSCALE ADVANCES 2019; 1:1331-1336. [PMID: 36132621 PMCID: PMC9419271 DOI: 10.1039/c8na00302e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/23/2018] [Accepted: 02/19/2019] [Indexed: 06/15/2023]
Abstract
Polyethyleneimine (PEI)-stabilized gold nanoparticles were used as a model to understand the roles of ionic precursors in the formation of nanoparticles and the impact of their presence on the nanoparticle properties. The low availability of elemental gold and the stabilization of the just-generated gold nanoparticles by the excess gold ions contributed to the production of ultra-small nearly neutral gold nanoparticles, resulting in properties significantly different from those prepared by conventional methods. The cross-linking between gold ions/PEI/nanoparticles further led to the assembly of these small gold nanoparticles into suprananoparticles that were stable in water. The hygroscopic Au(iii) residues in the suprananoparticles absorbed moisture to form a micro-water pool and the nanoparticles in the new aqueous solution reshuffled to generate larger nanoparticles, leading to significant changes in their optical properties. Such a phenomenon was formulated into a fast, sensitive and straightforward method for the detection of water content in organic solvents.
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Affiliation(s)
- Sungmoon Choi
- Department of Chemistry Education, Seoul National University 1 Gwanak-Ro, Gwanak-Gu Seoul 08826 South Korea
| | - Minyoung Lim
- Department of Chemistry Education, Seoul National University 1 Gwanak-Ro, Gwanak-Gu Seoul 08826 South Korea
| | - Yanlu Zhao
- Department of Chemistry Education, Seoul National University 1 Gwanak-Ro, Gwanak-Gu Seoul 08826 South Korea
| | - Junhua Yu
- Department of Chemistry Education, Seoul National University 1 Gwanak-Ro, Gwanak-Gu Seoul 08826 South Korea
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79
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Yang R, Hou M, Gao Y, Zhang L, Xu Z, Kang Y, Xue P. Indocyanine green-modified hollow mesoporous Prussian blue nanoparticles loading doxorubicin for fluorescence-guided tri-modal combination therapy of cancer. NANOSCALE 2019; 11:5717-5731. [PMID: 30865744 DOI: 10.1039/c8nr10430a] [Citation(s) in RCA: 49] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
Hollow mesoporous structures with interior cavities and expanded surface area have attracted considerable interest as drug delivery systems. In this study, a multifunctional nanotheranostic agent was developed by conjugating indocyanine green (ICG) and loading doxorubicin (DOX) onto the surfaces or within the cavities of hollow mesoporous Prussian blue (HMPB) nanoparticles, known as HMPB@PEI/ICG/DOX or simply HPID NPs, which were investigated as phototheranostic agents for in vivo fluorescence imaging and light-induced chemotherapy, photothermal therapy (PTT) and photodynamic therapy (PDT). These original HPID NPs exhibited strong near infrared (NIR) absorbance, reactive oxygen species (ROS) yield, and controlled chemotherapeutic drug release behavior. After intravenous injection of HPID NPs, highly efficient solid tumor ablation effects were observed in 4T1 tumor-bearing mouse models under NIR laser irradiation. Additionally, there was insignificant low-term toxicity or damage to normal tissues, as evidenced by histopathological and hemocompatibility analyses, suggesting that this agent has reliable biosafety for systemic applications. Taken together, the results of this study suggest that HPID NPs can produce tumor-specific and stimuli-triggered theranostic effects under tri-modal combination therapy. These HPID NPs advantageously provide traceable accumulation and activation and therefore could be a capable mediator in nanomedicines for eliminating solid tumors.
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Affiliation(s)
- Ruihao Yang
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, School of Materials and Energy, Southwest University, Chongqing 400715, China.
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80
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Song W, Gregory DA, Al-Janabi H, Muthana M, Cai Z, Zhao X. Magnetic-silk/polyethyleneimine core-shell nanoparticles for targeted gene delivery into human breast cancer cells. Int J Pharm 2019; 555:322-336. [PMID: 30448314 DOI: 10.1016/j.ijpharm.2018.11.030] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2018] [Revised: 11/10/2018] [Accepted: 11/12/2018] [Indexed: 12/19/2022]
Abstract
The lack of efficient and cost-effective methods for gene delivery has significantly hindered the applications of gene therapy. In this paper, a simple one step and cost effective salting-out method has been explored to fabricate silk-PEI nanoparticles (SPPs) and magnetic-silk/PEI core-shell nanoparticles (MSPPs) for targeted delivery of c-myc antisense oligodeoxynucleotides (ODNs) into MDA-MB-231 breast cancer cells. The size and zeta potential of the particles were controlled by adjusting the amount of silk fibroin in particle synthesis. Lower surface charges and reduced cytotoxicity were achieved for MSPPs compared with PEI coated magnetic nanoparticles (MPPs). Both SPPs and MSPPs were capable of delivering the ODNs into MDA-MB-231 cells and significantly inhibited the cell growth. Through magnetofection, high ODN uptake efficiencies (over 70%) were achieved within 20 min using MSPPs as carriers, exhibiting a significantly enhanced uptake effect compared to the same carriers via non-magnetofection. Both SPPs and MSPPs exhibited a significantly higher inhibition effect against MDA-MB-231 breast cancer cells compared to human dermal fibroblast (HDF) cells. Targeted ODN delivery was achieved using MSPPs with the help of a magnet, making them promising candidates for targeted gene therapy applications.
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Affiliation(s)
- Wenxing Song
- Department of Chemical and Biological Engineering, University of Sheffield, Sheffield S1 3JD, UK; School of Pharmaceutical Engineering and Life Science, Changzhou University, Changzhou 213164, China
| | - David A Gregory
- Department of Chemical and Biological Engineering, University of Sheffield, Sheffield S1 3JD, UK
| | - Haider Al-Janabi
- Department of Infection and Immunity, University of Sheffield, Sheffield S10 2RX, UK
| | - Munitta Muthana
- Department of Infection and Immunity, University of Sheffield, Sheffield S10 2RX, UK
| | - Zhiqiang Cai
- School of Pharmaceutical Engineering and Life Science, Changzhou University, Changzhou 213164, China
| | - Xiubo Zhao
- Department of Chemical and Biological Engineering, University of Sheffield, Sheffield S1 3JD, UK; School of Pharmaceutical Engineering and Life Science, Changzhou University, Changzhou 213164, China.
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81
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Basu S, Venable RM, Rice B, Ogharandukun E, Klauda JB, Pastor RW, Chandran PL. Mannobiose‐Grafting Shifts PEI Charge and Biphasic Dependence on pH. MACROMOL CHEM PHYS 2019. [DOI: 10.1002/macp.201800423] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Saswati Basu
- Department of Chemical Engineering Howard University Washington DC
| | - Richard M. Venable
- Laboratory of Computational Biology National Heart, Lung, and Blood Institute National Institutes of Health Bethesda MD
| | - Bria Rice
- Department of Chemical Engineering Howard University Washington DC
| | | | - Jeffery B. Klauda
- Department of Chemical and Biomolecular Engineering and Biophysics Program University of Maryland College Park Maryland
| | - Richard W. Pastor
- Laboratory of Computational Biology National Heart, Lung, and Blood Institute National Institutes of Health Bethesda MD
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82
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Cook AB, Peltier R, Zhang J, Gurnani P, Tanaka J, Burns JA, Dallmann R, Hartlieb M, Perrier S. Hyperbranched poly(ethylenimine-co-oxazoline) by thiol–yne chemistry for non-viral gene delivery: investigating the role of polymer architecture. Polym Chem 2019. [DOI: 10.1039/c8py01648h] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Synthesis of long-chain hyperbranched poly(ethylenimine-co-oxazoline)s by AB2 thiol–yne chemistry is reported, and their application as pDNA transfection agents studied.
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Affiliation(s)
| | - Raoul Peltier
- Department of Chemistry
- University of Warwick
- Coventry
- UK
| | | | | | - Joji Tanaka
- Department of Chemistry
- University of Warwick
- Coventry
- UK
| | - James A. Burns
- Syngenta
- Jealott's Hill International Research Centre
- Bracknell
- Berkshire
- UK
| | | | | | - Sébastien Perrier
- Department of Chemistry
- University of Warwick
- Coventry
- UK
- Warwick Medical School
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83
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Tekinalp Ö, Alsoy Altinkaya S. Development of high flux nanofiltration membranes through single bilayer polyethyleneimine/alginate deposition. J Colloid Interface Sci 2018; 537:215-227. [PMID: 30445350 DOI: 10.1016/j.jcis.2018.10.089] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2018] [Revised: 10/25/2018] [Accepted: 10/27/2018] [Indexed: 10/28/2022]
Abstract
The aim of this study is to prepare high flux, stable, antifouling nanofiltration membranes through single bilayer polyelectrolyte deposition. To this end, a tight ultrafiltration support membrane was prepared from a polysulfone/sulfonated polyethersulfone blend. Deposition of a polyethyleneimine and alginate pair on this support has reduced the molecular weight cut off from 6 kDa to below 1 kDa. The pure water permeability and polyethylene glycol 1000 rejection of the coated membrane were found to be 15.5 ± 0.3 L/m2·h·bar and 90 ± 0.6%, respectively, by setting the deposition pH for each layer to 8 and the ionic strengths to 0.5 M and 0 M. This membrane has exhibited significantly higher permeability than commercial membranes with the same molecular weight cut off, retaining 98% of the initial flux during 15 h filtration of bovine serum albumine. In addition, the membrane has been able to completely remove anionic dyes from aqueous solution by showing 99.9% retentions to Reactive red 141, Brilliant blue G and Congo red with a 2 bar transmembrane pressure. High flux and membrane stability in acidic and salty environments have been achieved when deposition conditions favor high adsorption levels for the first layer and strong ionic cross-linking between the carboxyl group on the alginate and the amine groups on the polyethyleneimine.
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Affiliation(s)
- Önder Tekinalp
- Department of Chemical Engineering, Izmir Institute of Technology, Gulbahce Campus, 35430 Urla, Izmir, Turkey
| | - Sacide Alsoy Altinkaya
- Department of Chemical Engineering, Izmir Institute of Technology, Gulbahce Campus, 35430 Urla, Izmir, Turkey.
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84
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Kiruba R, Vinod S, Zaibudeen A, Solomon RV, Philip J. Stability and rheological properties of hybrid γ-Al2O3 nanofluids with cationic polyelectrolyte additives. Colloids Surf A Physicochem Eng Asp 2018. [DOI: 10.1016/j.colsurfa.2018.06.044] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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85
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Divakaran S, Ponraju D, Varughese S, Swaminathan T. Parametric studies for strontium separation and volume reduction of a simulated nuclear waste solution. SEP SCI TECHNOL 2018. [DOI: 10.1080/01496395.2018.1433687] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
| | - D Ponraju
- Indira Gandhi Centre for Atomic Research, Kalpakkam, India
| | - Susy Varughese
- Department of Chemical Engineering, Indian Institute of Technology, Madras, Chennai, India
| | - T Swaminathan
- Department of Chemical Engineering, Indian Institute of Technology, Madras, Chennai, India
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86
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Zhao Z, Kantamneni H, He S, Pelka S, Venkataraman AS, Kwon M, Libutti SK, Pierce M, Moghe PV, Ganapathy V, Tan MC. Surface-Modified Shortwave-Infrared-Emitting Nanophotonic Reporters for Gene-Therapy Applications. ACS Biomater Sci Eng 2018; 4:2305-2363. [PMID: 30417087 PMCID: PMC6226244 DOI: 10.1021/acsbiomaterials.8b00378] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Gene therapy is emerging as the next generation of therapeutic modality with United States Food and Drug Administration approved gene-engineered therapy for cancer and a rare eye-related disorder, but the challenge of real-time monitoring of on-target therapy response remains. In this study, we have designed a theranostic nanoparticle composed of shortwave-infrared-emitting rare-earth-doped nanoparticles (RENPs) capable of delivering genetic cargo and of real-time response monitoring. We showed that the cationic coating of RENPs with branched polyethylenimine (PEI) does not have a significant impact on cellular toxicity, which can be further reduced by selectively modifying the surface characteristics of the PEI coating using counter-ions and expanding their potential applications in photothermal therapy. We showed the tolerability and clearance of a bolus dose of RENPs@PEI in mice up to 7 days after particle injection in addition to the RENPs@PEI ability to distinctively discern lung tumor lesions in a breast cancer mouse model with an excellent signal-to-noise ratio. We also showed the availability of amine functional groups in the collapsed PEI chain conformation on RENPs, which facilitates the loading of genetic cargo that hybridizes with target gene in an in vitro cancer model. The real-time monitoring and delivery of gene therapy at on-target sites will enable the success of an increased number of gene- and cell-therapy products in clinical trials.
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Affiliation(s)
- Zhenghuan Zhao
- Engineering Product Development, Singapore University of Technology and Design, 8 Somapah Road, Singapore 487372
| | - Harini Kantamneni
- Department of Chemical and Biochemical Engineering, The State University of New Jersey, 599 Taylor Road, Piscataway, New Jersey 08854, United States
| | - Shuqing He
- Engineering Product Development, Singapore University of Technology and Design, 8 Somapah Road, Singapore 487372
| | - Sandra Pelka
- Department of Biomedical Engineering, Rutgers, The State University of New Jersey, 599 Taylor Road, Piscataway, New Jersey 08854, United States
| | - Aiyer Sandhya Venkataraman
- Engineering Product Development, Singapore University of Technology and Design, 8 Somapah Road, Singapore 487372
| | - Mijung Kwon
- Rutgers Cancer Institute of New Jersey, Rutgers, The State University of New Jersey, 195 Little Albany Street, New Brunswick, New Jersey 08901, United States
| | - Steven K. Libutti
- Rutgers Cancer Institute of New Jersey, Rutgers, The State University of New Jersey, 195 Little Albany Street, New Brunswick, New Jersey 08901, United States
| | - Mark Pierce
- Department of Biomedical Engineering, Rutgers, The State University of New Jersey, 599 Taylor Road, Piscataway, New Jersey 08854, United States
| | - Prabhas V. Moghe
- Department of Biomedical Engineering, Rutgers, The State University of New Jersey, 599 Taylor Road, Piscataway, New Jersey 08854, United States
| | - Vidya Ganapathy
- Department of Biomedical Engineering, Rutgers, The State University of New Jersey, 599 Taylor Road, Piscataway, New Jersey 08854, United States
| | - Mei Chee Tan
- Engineering Product Development, Singapore University of Technology and Design, 8 Somapah Road, Singapore 487372
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87
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Zakeri A, Kouhbanani MAJ, Beheshtkhoo N, Beigi V, Mousavi SM, Hashemi SAR, Karimi Zade A, Amani AM, Savardashtaki A, Mirzaei E, Jahandideh S, Movahedpour A. Polyethylenimine-based nanocarriers in co-delivery of drug and gene: a developing horizon. NANO REVIEWS & EXPERIMENTS 2018; 9:1488497. [PMID: 30410712 PMCID: PMC6171788 DOI: 10.1080/20022727.2018.1488497] [Citation(s) in RCA: 156] [Impact Index Per Article: 26.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/05/2018] [Accepted: 06/08/2018] [Indexed: 01/22/2023]
Abstract
The meaning of gene therapy is the delivery of DNA or RNA to cells for the treatment or prevention of genetic disorders. The success rate of gene therapy depends on the progression and safe gene delivery system. The vectors available for gene therapy are divided into viral and non-viral systems. Viral vectors cause higher transmission efficiency and long gene expression, but they have major problems, such as immunogenicity, carcinogenicity, the inability to transfer large size genes and high costs. Non-viral gene transfer vectors have attracted more attention because they exhibit less toxicity and the ability to transfer large size genes. However, the clinical application of non-viral methods still faces some limitations, including low transmission efficiency and poor gene expression. In recent years, numerous methods and gene-carriers have been developed to improve gene transfer efficiency. The use of Polyethylenimine (PEI) based transfer of collaboration may create a new way of treating diseases and the combination of chemotherapy and gene therapy. The purpose of this paper is to introduce the PEI as an appropriate vector for the effective gene delivery.
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Affiliation(s)
- Abbas Zakeri
- Department of Medical Nanotechnology, School of Advanced Medical Sciences and Technologies, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Mohammad Amin Jadidi Kouhbanani
- Department of Medical Nanotechnology, School of Advanced Medical Sciences and Technologies, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Nasrin Beheshtkhoo
- Department of Medical Nanotechnology, School of Advanced Medical Sciences and Technologies, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Vahid Beigi
- Poostchi Ophthalmology Research Center, Department of Ophthalmology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Seyyed Mojtaba Mousavi
- Department of Medical Nanotechnology, School of Advanced Medical Sciences and Technologies, Shiraz University of Medical Sciences, Shiraz, Iran
- Pharmaceutical Sciences Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Seyyed Ali Reza Hashemi
- Department of Medical Nanotechnology, School of Advanced Medical Sciences and Technologies, Shiraz University of Medical Sciences, Shiraz, Iran
- Pharmaceutical Sciences Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Ayoob Karimi Zade
- Department of Medical Nanotechnology, School of Advanced Medical Sciences and Technologies, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Ali Mohammad Amani
- Department of Medical Nanotechnology, School of Advanced Medical Sciences and Technologies, Shiraz University of Medical Sciences, Shiraz, Iran
- Poostchi Ophthalmology Research Center, Department of Ophthalmology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Amir Savardashtaki
- Department of Medical Biotechnology, School of Advanced Medical Sciences and Technologies, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Esmail Mirzaei
- Department of Medical Nanotechnology, School of Advanced Medical Sciences and Technologies, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Sara Jahandideh
- Department of Chemical and Polymer Engineering, Faculty of Engineering, Yazd University, Yazd, Iran
| | - Ahmad Movahedpour
- Department of Medical Biotechnology, School of Advanced Medical Sciences and Technologies, Shiraz University of Medical Sciences, Shiraz, Iran
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88
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Costa D, Valente AJM, Queiroz JA, Sousa Â. Finding the ideal polyethylenimine-plasmid DNA system for co-delivery of payloads in cancer therapy. Colloids Surf B Biointerfaces 2018; 170:627-636. [PMID: 29986258 DOI: 10.1016/j.colsurfb.2018.06.063] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2018] [Revised: 06/26/2018] [Accepted: 06/28/2018] [Indexed: 10/28/2022]
Abstract
Researchers still hold for the development of a safety and advanced delivery system able of efficient therapeutic action. The co-delivery of different payloads is part of this strategy and has already demonstrated to be a valuable tool against the most severe diseases. In the pursuit of an "ideal" drug/gene co-delivery vector for cancer therapy, we present a complete comparison study of different morphology and molecular weight polyethylenimine (PEI)/p53 encoding plasmid DNA (pDNA) polyplexes. Besides pDNA, also methotrexate (MTX) has been loaded into PEI/pDNA nanoparticles. The polyplexes have been characterized in terms of morphology, size, surface charges, loading/encapsulation efficiencies and toxicity. Although the nature of PEI can influence these properties, they deeply vary with the polymer nitrogen to pDNA phosphate (N/P) ratio. The transfection of HeLa cells mediated by PEI/pDNA/MTX vectors leads to both the release of MTX and the p53 protein expression. Modelling of MTX release kinetics brings valuable information concerning drug delivery mechanism. Moreover, the success of transfection is dependent on the nature of PEI and, mainly, on the N/P ratio used in the formulation of polyplexes. This work represents a great contribution for the design and development of innovative PEI based carriers for the most challenging biomedical applications.
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Affiliation(s)
- Diana Costa
- CICS-UBI - Health Sciences Research Centre, University of Beira Interior, Av. Infante D. Henrique, 6200-506, Covilhã, Portugal.
| | - Artur J M Valente
- Department of Chemistry, University of Coimbra, 3004-535, Coimbra, Portugal
| | - João A Queiroz
- CICS-UBI - Health Sciences Research Centre, University of Beira Interior, Av. Infante D. Henrique, 6200-506, Covilhã, Portugal
| | - Ângela Sousa
- CICS-UBI - Health Sciences Research Centre, University of Beira Interior, Av. Infante D. Henrique, 6200-506, Covilhã, Portugal
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89
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Hertz D, Leiske MN, Wloka T, Traeger A, Hartlieb M, Kessels MM, Schubert S, Qualmann B, Schubert US. Comparison of random and gradient amino functionalized poly(2-oxazoline)s: Can the transfection efficiency be tuned by the macromolecular structure? ACTA ACUST UNITED AC 2018. [DOI: 10.1002/pola.29000] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- David Hertz
- Institute of Biochemistry I, Jena University Hospital - Friedrich Schiller University Jena, Nonnenplan 2; Jena 07743 Germany
- Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7; Jena 07743 Germany
| | - Meike N. Leiske
- Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7; Jena 07743 Germany
- Laboratory of Organic and Macromolecular Chemistry (IOMC); Friedrich Schiller University Jena, Humboldtstraße 10; Jena 07743 Germany
| | - Thomas Wloka
- Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7; Jena 07743 Germany
- Laboratory of Organic and Macromolecular Chemistry (IOMC); Friedrich Schiller University Jena, Humboldtstraße 10; Jena 07743 Germany
| | - Anja Traeger
- Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7; Jena 07743 Germany
- Laboratory of Organic and Macromolecular Chemistry (IOMC); Friedrich Schiller University Jena, Humboldtstraße 10; Jena 07743 Germany
| | - Matthias Hartlieb
- Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7; Jena 07743 Germany
- Laboratory of Organic and Macromolecular Chemistry (IOMC); Friedrich Schiller University Jena, Humboldtstraße 10; Jena 07743 Germany
| | - Michael M. Kessels
- Institute of Biochemistry I, Jena University Hospital - Friedrich Schiller University Jena, Nonnenplan 2; Jena 07743 Germany
| | - Stephanie Schubert
- Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7; Jena 07743 Germany
- Institute of Pharmacy, Pharmaceutical Technology, Friedrich Schiller University Jena, Otto-Schott-Straße 41; Jena 07745 Germany
| | - Britta Qualmann
- Institute of Biochemistry I, Jena University Hospital - Friedrich Schiller University Jena, Nonnenplan 2; Jena 07743 Germany
- Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7; Jena 07743 Germany
| | - Ulrich S. Schubert
- Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7; Jena 07743 Germany
- Laboratory of Organic and Macromolecular Chemistry (IOMC); Friedrich Schiller University Jena, Humboldtstraße 10; Jena 07743 Germany
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90
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Zimmermann M, John D, Grigoriev D, Puretskiy N, Böker A. From 2D to 3D patches on multifunctional particles: how microcontact printing creates a new dimension of functionality. SOFT MATTER 2018; 14:2301-2309. [PMID: 29504010 PMCID: PMC5870046 DOI: 10.1039/c8sm00163d] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/22/2018] [Accepted: 02/14/2018] [Indexed: 05/13/2023]
Abstract
A straightforward approach for the precise multifunctional surface modification of particles with three-dimensional patches using microcontact printing is presented. By comparison to previous works it was possible to not only control the diameter, but also to finely tune the thickness of the deposited layer, opening up the way for three-dimensional structures and orthogonal multifunctionality. The use of PEI as polymeric ink, PDMS stamps for microcontact printing on silica particles and the influence of different solvents during particle release on the creation of functional particles with three-dimensional patches are described. Finally, by introducing fluorescent properties by incorporation of quantum dots into patches and by particle self-assembly via avidin-biotin coupling, the versatility of this novel modification method is demonstrated.
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Affiliation(s)
- Marc Zimmermann
- Fraunhofer Institute for Applied Polymer Research IAP, D-14476 Potsdam-Golm, Germany. and Chair of Polymer Materials and Polymer Technologies, University Potsdam, D-14476 Potsdam-Golm, Germany
| | - Daniela John
- Fraunhofer Institute for Applied Polymer Research IAP, D-14476 Potsdam-Golm, Germany.
| | - Dmitry Grigoriev
- Fraunhofer Institute for Applied Polymer Research IAP, D-14476 Potsdam-Golm, Germany.
| | - Nikolay Puretskiy
- Fraunhofer Institute for Applied Polymer Research IAP, D-14476 Potsdam-Golm, Germany.
| | - Alexander Böker
- Fraunhofer Institute for Applied Polymer Research IAP, D-14476 Potsdam-Golm, Germany. and Chair of Polymer Materials and Polymer Technologies, University Potsdam, D-14476 Potsdam-Golm, Germany
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91
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Kim I, Pascal TA, Park SJ, Diallo M, Goddard III WA, Jung Y. pH-Dependent Conformations for Hyperbranched Poly(ethylenimine) from All-Atom Molecular Dynamics. Macromolecules 2018. [DOI: 10.1021/acs.macromol.7b02573] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- In Kim
- Graduate School of Energy, Environment, Water and Sustainability (EEWS), Korea Advanced Institute of Science and Technology, Daejeon 34141, Korea
| | - Tod A. Pascal
- The Molecular Foundry, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Seong-Jik Park
- Department of Bioresources and Rural Systems Engineering, Hankyong National University, Kyonggi 17579, South Korea
| | - Mamadou Diallo
- Graduate School of Energy, Environment, Water and Sustainability (EEWS), Korea Advanced Institute of Science and Technology, Daejeon 34141, Korea
| | - William A. Goddard III
- Materials and Process Simulation Center, Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125, United States
| | - Yousung Jung
- Graduate School of Energy, Environment, Water and Sustainability (EEWS), Korea Advanced Institute of Science and Technology, Daejeon 34141, Korea
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92
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Kim KM, Nam YS, Lee Y, Lee KB. A Highly Sensitive and Selective Colorimetric Hg 2+ Ion Probe Using Gold Nanoparticles Functionalized with Polyethyleneimine. JOURNAL OF ANALYTICAL METHODS IN CHEMISTRY 2018; 2018:1206913. [PMID: 29629208 PMCID: PMC5832139 DOI: 10.1155/2018/1206913] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/11/2017] [Revised: 12/06/2017] [Accepted: 12/18/2017] [Indexed: 06/08/2023]
Abstract
A highly sensitive and selective colorimetric assay for the detection of Hg2+ ions was developed using gold nanoparticles (AuNPs) conjugated with polyethyleneimine (PEI). The Hg2+ ion coordinates with PEI, decreasing the interparticle distance and inducing aggregation. Time-of-flight secondary ion mass spectrometry showed that the Hg2+ ion was bound to the nitrogen atoms of the PEI in a bidentate manner (N-Hg2+-N), which resulted in a significant color change from light red to violet due to aggregation. Using this PEI-AuNP probe, determination of Hg2+ ion can be achieved by the naked eye and spectrophotometric methods. Pronounced color change of the PEI-AuNPs in the presence of Hg2+ was optimized at pH 7.0, 50°C, and 300 mM·NaCl concentration. The absorption intensity ratio (A700/A514) was correlated with the Hg2+ concentration in the linear range of 0.003-5.0 μM. The limits of detection were measured to be 1.72, 1.80, 2.00, and 1.95 nM for tap water, pond water, tuna fish, and bovine serum, respectively. Owing to its facile and sensitive nature, this assay method for Hg2+ ions can be applied to the analysis of water and biological samples.
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Affiliation(s)
- Kyung Min Kim
- Green City Technology Institute, Korea Institute of Science and Technology, Hwarang-ro 14 gil 5, Seoul 02792, Republic of Korea
- Department of Chemistry, Korea University, Anam-ro, Seongbuk-gu, P.O. Box 145, Seoul 136-701, Republic of Korea
| | - Yun-Sik Nam
- Advanced Analysis Center, Korea Institute of Science and Technology, Hwarang-ro 14 gil 5, Seoul 02792, Republic of Korea
| | - Yeonhee Lee
- Advanced Analysis Center, Korea Institute of Science and Technology, Hwarang-ro 14 gil 5, Seoul 02792, Republic of Korea
| | - Kang-Bong Lee
- Green City Technology Institute, Korea Institute of Science and Technology, Hwarang-ro 14 gil 5, Seoul 02792, Republic of Korea
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93
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Bus T, Traeger A, Schubert US. The great escape: how cationic polyplexes overcome the endosomal barrier. J Mater Chem B 2018; 6:6904-6918. [DOI: 10.1039/c8tb00967h] [Citation(s) in RCA: 182] [Impact Index Per Article: 30.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Endo-lysosomal escape strategies of cationic polymer-mediated gene delivery at a glance.
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Affiliation(s)
- Tanja Bus
- Laboratory of Organic Chemistry and Macromolecular Chemistry (IOMC)
- Friedrich Schiller University Jena
- 07743 Jena
- Germany
- Jena Center for Soft Matter (JCSM)
| | - Anja Traeger
- Laboratory of Organic Chemistry and Macromolecular Chemistry (IOMC)
- Friedrich Schiller University Jena
- 07743 Jena
- Germany
- Jena Center for Soft Matter (JCSM)
| | - Ulrich S. Schubert
- Laboratory of Organic Chemistry and Macromolecular Chemistry (IOMC)
- Friedrich Schiller University Jena
- 07743 Jena
- Germany
- Jena Center for Soft Matter (JCSM)
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94
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Abeyratne-Perera HK, Chandran PL. Mannose Surfaces Exhibit Self-Latching, Water Structuring, and Resilience to Chaotropes: Implications for Pathogen Virulence. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2017; 33:9178-9189. [PMID: 28817934 DOI: 10.1021/acs.langmuir.7b01006] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Several viral and fungal pathogens, including HIV, SARS, Dengue, Ebola, and Cryptococcus neoformans, display a preponderance of mannose residues on their surface, particularly during the infection cycle or in harsh environments. The innate immune system, on the other hand, abounds in mannose receptors which recognize mannose residues on pathogens and trigger their phagocytosis. We pose the question if there is an advantage for pathogens to display mannose on their surface, despite these residues being recognized by the immune system. The surface properties and interactions of opposing monolayers of mannobiose (disaccharide of mannose) were probed using atomic force spectroscopy. Unlike its diastereoisomer lactose, mannobiose molecules exhibited lateral packing interactions that manifest on the surface scale as a self-recognizing latch. A break-in force is required for opposing surfaces to penetrate and a breakout (or self-adhesion force) of similar magnitude is required for penetrated surfaces to separate. A hierarchy of self-adhesion forces was distinguished as occurring at the single residue (∼25 pN), cluster (∼250 pN), monolayer (∼1.1 nN), and supramonolayer level. The break-in force and break-out force appear resilient to the presence of simple chaotropes that attenuate a layer of structured water around the mannose surface. The layer of structured water otherwise extends to distances several times longer than a mannobiose residue, indicating a long-range propagation of the hydrogen bonding imposed by the residues. The span of the structured water increases with the velocity of an approaching surface, similar to shear thickening, but fissures at higher approach velocities. Our studies suggest that mannose residues could guide interpathogen interactions, such as in biofilms, and serve as a moated fortress for pathogens to hide behind to resist detection and harsh environments.
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Affiliation(s)
- Hashanthi K Abeyratne-Perera
- Biochemistry and Molecular Biology Department and ‡Chemical Engineering Department, Howard University , Washington, D.C. 20059, United States
| | - Preethi L Chandran
- Biochemistry and Molecular Biology Department and ‡Chemical Engineering Department, Howard University , Washington, D.C. 20059, United States
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