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Yooyod M, Pinthong T, Mahasaranon S, Viyoch J, Ross S, Ross GM. Characterization and Performance Analysis of Hydrolyzed versus Non-Hydrolyzed Poly(NVF-co-HEA) Hydrogels for Cosmetic Applications. Gels 2024; 10:311. [PMID: 38786228 PMCID: PMC11120761 DOI: 10.3390/gels10050311] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2024] [Revised: 04/29/2024] [Accepted: 04/30/2024] [Indexed: 05/25/2024] Open
Abstract
This study explores the synthesis and modification of poly(N-vinylformamide-co-N-hydroxyethyl acrylamide) (poly(NVF-co-HEA)) hydrogels for cosmetic applications. Poly(NVF-co-HEA) hydrogels were produced followed by an acid hydrolysis reaction to produce poly(NVF-co-VAm-co-HEA) hydrogels, introducing poly(vinyl amine) (PVAm) into the structure. This modification considerably alters the hydrogels' properties, yielding materials with over 96% water content, predominantly in the form of non-freezing or free water, which is beneficial in the uptake and release of hydrophilic species. The primary amine groups from inclusion of VAm also improved the mechanical properties, as evidenced by an 8-fold increase in Young's modulus. The hydrogels also possessed pH-responsive behavior, which was particularly noticeable under acidic and basic conditions, where a large decrease in water content was observed (40% to 75% reduction). Characterizing the hydrogels' release capabilities involved using organic dyes of different functional groups and sizes to examine the pH impact on release. The results indicated that hydrolyzed hydrogels interacted more effectively with charged species, highlighting their suitability for pH-responsive delivery. The release of cosmetic active ingredients was also demonstrated through the controlled release of Liquid Azelaic™, specifically potassium azeloyl diglycinate (PAD). Our findings reveal that the hydrolyzed hydrogels exhibit superior burst release, especially under alkaline conditions, suggesting their suitability for cosmetic applications where controlled, pH-responsive delivery of active ingredients is desired. Overall, this investigation highlights the potential of hydrolyzed poly(NVF-co-HEA) hydrogels in cosmetic applications. Their ability to combine high water content with mechanical integrity, along with their pH-responsive release ability, allows for use in cosmetic formulations.
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Affiliation(s)
- Maytinee Yooyod
- Biopolymer Group, Department of Chemistry, Faculty of Science, Naresuan University, Phitsanulok 65000, Thailand; (M.Y.); (T.P.)
| | - Thanyaporn Pinthong
- Biopolymer Group, Department of Chemistry, Faculty of Science, Naresuan University, Phitsanulok 65000, Thailand; (M.Y.); (T.P.)
| | - Sararat Mahasaranon
- Biopolymer Group, Department of Chemistry, Center of Excellence in Biomaterials, Faculty of Science, Naresuan University, Phitsanulok 65000, Thailand; (S.M.); (S.R.)
| | - Jarupa Viyoch
- Department of Pharmaceutical Technology, Faculty of Pharmaceutical Sciences and Center of Excellence for Innovation in Chemistry, Naresuan University, Phitsanulok 65000, Thailand;
| | - Sukunya Ross
- Biopolymer Group, Department of Chemistry, Center of Excellence in Biomaterials, Faculty of Science, Naresuan University, Phitsanulok 65000, Thailand; (S.M.); (S.R.)
| | - Gareth M. Ross
- Biopolymer Group, Department of Chemistry, Center of Excellence in Biomaterials, Faculty of Science, Naresuan University, Phitsanulok 65000, Thailand; (S.M.); (S.R.)
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2
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Yang G, Wang Y. Dynamic Light Scattering of DNA-Ligand Complexes. Methods Mol Biol 2024; 2819:341-356. [PMID: 39028514 DOI: 10.1007/978-1-0716-3930-6_16] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/20/2024]
Abstract
Dynamic light scattering (DLS) enables the characterization of sizes and electrokinetic properties of colloids, polymers, and macromolecules. DNA is a charged semiflexible polyelectrolyte that is condensed or compacted by counterions, proteins, and other condensing agents in processes such as chromosome compaction and gene therapeutic applications. DNA condensation is closely related to charge screening since packaging requires effective neutralization of its surface negative charges. In this chapter, we describe in detail the protocol for DLS DNA-ligand complexes. As an example, we describe data for the condensation of DNA by chitosan and the measurement of size, zeta potential, and electrophoretic mobility of the DNA-ligand complex by DLS.
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Affiliation(s)
- Guangcan Yang
- Department of Physics, Wenzhou University, Wenzhou, China.
| | - Yanwei Wang
- Department of Physics, Wenzhou University, Wenzhou, China
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3
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Jung YJ, Choi JS, Ryu JY, Zhang Z, Lim YB. Cooperative Assembly of Self-Adjusting α-Helical Coiled Coils along the Length of an mRNA Chain to Form a Thermodynamically Stable Nanotube Carrier. J Am Chem Soc 2023; 145:23048-23056. [PMID: 37735109 DOI: 10.1021/jacs.3c05638] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/23/2023]
Abstract
Although mRNA delivery technology is very promising, problems in safety and transport arise due to the intrinsically low thermodynamic stability of the current mRNA carriers. Considering that mRNAs are filamentous and a nanotube is one of the most thermodynamically stable shapes among nanoassemblies, a nanotube is one of the most stable supramolecular structures that can be assembled with mRNA. Here, we develop a nanotube-shaped filamentous mRNA delivery platform that shows exceptionally high thermodynamic stability. The key to the development of the mRNA nanotube is the design of self-adjusting supramolecular building blocks (SABs) that have two disparate properties, i.e., dynamic property and stiffness, in a single molecule. The counterbalance of the dynamic property and stiffness in SABs enables the coating of mRNA by winding its way through the flexible and irregular mRNA chain via cooperative interactions. SAB nanotubes with targeting ligands installed show a high uptake efficiency in mammalian cells and controllable gene expression behavior. Thus, the mRNA nanotube provides an enabling technology toward the development of safe and stable mRNA vaccines and therapeutics.
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Affiliation(s)
- You-Jin Jung
- Department of Materials Science and Engineering, Yonsei University, Seoul 03722, Republic of Korea
| | - Jun Shik Choi
- Department of Materials Science and Engineering, Yonsei University, Seoul 03722, Republic of Korea
| | - Jung-Yeon Ryu
- Department of Materials Science and Engineering, Yonsei University, Seoul 03722, Republic of Korea
| | - Zhihao Zhang
- Department of Materials Science and Engineering, Yonsei University, Seoul 03722, Republic of Korea
| | - Yong-Beom Lim
- Department of Materials Science and Engineering, Yonsei University, Seoul 03722, Republic of Korea
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4
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Yang X, Buyukdagli S, Scacchi A, Sammalkorpi M, Ala-Nissila T. Theoretical and computational analysis of the electrophoretic polymer mobility inversion induced by charge correlations. Phys Rev E 2023; 107:034503. [PMID: 37073074 DOI: 10.1103/physreve.107.034503] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2022] [Accepted: 02/14/2023] [Indexed: 04/20/2023]
Abstract
Electrophoretic (EP) mobility reversal is commonly observed for strongly charged macromolecules in multivalent salt solutions. This curious effect takes place, e.g., when a charged polymer, such as DNA, adsorbs excess counterions so that the counterion-dressed surface charge reverses its sign, leading to the inversion of the polymer drift driven by an external electric field. In order to characterize this seemingly counterintuitive phenomenon that cannot be captured by electrostatic mean-field theories, we adapt here a previously developed strong-coupling-dressed Poisson-Boltzmann approach to the cylindrical geometry of the polyelectrolyte-salt system. Within the framework of this formalism, we derive an analytical polymer mobility formula dressed by charge correlations. In qualitative agreement with polymer transport experiments, this mobility formula predicts that the increment of the monovalent salt, the decrease of the multivalent counterion valency, and the increase of the dielectric permittivity of the background solvent suppress charge correlations and increase the multivalent bulk counterion concentration required for EP mobility reversal. These results are corroborated by coarse-grained molecular dynamics simulations showing how multivalent counterions induce mobility inversion at dilute concentrations and suppress the inversion effect at large concentrations. This re-entrant behavior, previously observed in the aggregation of like-charged polymer solutions, calls for verification by polymer transport experiments.
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Affiliation(s)
- Xiang Yang
- Department of Applied Physics, Aalto University, P. O. Box 11000, FI-00076 Aalto, Finland
| | | | - Alberto Scacchi
- Department of Applied Physics, Aalto University, P. O. Box 11000, FI-00076 Aalto, Finland
- Academy of Finland Center of Excellence in Life-Inspired Hybrid Materials (LIBER), Aalto University, P. O. Box 16100, FI-00076 Aalto, Finland
| | - Maria Sammalkorpi
- Academy of Finland Center of Excellence in Life-Inspired Hybrid Materials (LIBER), Aalto University, P. O. Box 16100, FI-00076 Aalto, Finland
- Department of Chemistry and Materials Science, Aalto University, P. O. Box 16100, FI-00076 Aalto, Finland
- Department of Bioproducts and Biosystems, Aalto University, P. O. Box 16100, FI-00076 Aalto, Finland
| | - Tapio Ala-Nissila
- Department of Applied Physics, Aalto University, P. O. Box 11000, FI-00076 Aalto, Finland
- Quantum Technology Finland Center of Excellence, Department of Applied Physics, Aalto University, P. O. Box 11000, FI-00076 Aalto, Finland
- Interdisciplinary Centre for Mathematical Modelling and Department of Mathematical Sciences, Loughborough University, Loughborough, Leicestershire LE11 3TU, United Kingdom
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5
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Lores S, Gámez-Chiachio M, Cascallar M, Ramos-Nebot C, Hurtado P, Alijas S, López López R, Piñeiro R, Moreno-Bueno G, de la Fuente M. Effectiveness of a novel gene nanotherapy based on putrescine for cancer treatment. Biomater Sci 2023. [PMID: 36790445 DOI: 10.1039/d2bm01456d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/16/2023]
Abstract
Gene therapy has long been proposed for cancer treatment. However, the use of therapeutic nucleic acids presents several limitations such as enzymatic degradation, rapid clearance, and poor cellular uptake and efficiency. In this work we propose the use of putrescine, a precursor for higher polyamine biosynthesis for the preparation of cationic nanosystems for cancer gene therapy. We have formulated and characterized putrescine-sphingomyelin nanosystems (PSN) and studied their endocytic pathway and intracellular trafficking in cancer cells. After loading a plasmid DNA (pDNA) encoding the apoptotic Fas Ligand (FasL), we proved their therapeutic activity by measuring the cell death rate after treatment of MDA-MB-231 cells. We have also used xenografted zebrafish embryos as a first in vivo approach to demonstrate the efficacy of the proposed PSN-pDNA formulation in a more complex model. Finally, intratumoral and intraperitoneal administration to mice-bearing MDA-MB-231 xenografts resulted in a significant decrease in tumour cell growth, highlighting the potential of the developed gene therapy nanoformulation for the treatment of triple negative breast cancer.
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Affiliation(s)
- Saínza Lores
- Nano-Oncology and Translational Therapeutics Unit, Health Research Institute of Santiago de Compostela (IDIS), Travesía da Choupana s/n, Santiago de Compostela, 15706, A Coruña, Spain. .,Universidade de Santiago de Compostela (USC), Praza do Obradoiro, s/n, Santiago de Compostela, 15782, A Coruña, Spain
| | - Manuel Gámez-Chiachio
- Translational Cancer Research Laboratory, Department of Biochemistry, Autonomous University of Madrid, School of Medicine, "Alberto Sols" Biomedical Research Institute CSIC-UAM, IdiPaz, Arturo Duperier 4, 28029, Madrid, Spain. .,Biomedical Cancer Research Network (CIBERONC), 28029 Madrid, Spain
| | - María Cascallar
- Nano-Oncology and Translational Therapeutics Unit, Health Research Institute of Santiago de Compostela (IDIS), Travesía da Choupana s/n, Santiago de Compostela, 15706, A Coruña, Spain. .,Universidade de Santiago de Compostela (USC), Praza do Obradoiro, s/n, Santiago de Compostela, 15782, A Coruña, Spain.,Biomedical Cancer Research Network (CIBERONC), 28029 Madrid, Spain
| | - Carmen Ramos-Nebot
- Translational Cancer Research Laboratory, Department of Biochemistry, Autonomous University of Madrid, School of Medicine, "Alberto Sols" Biomedical Research Institute CSIC-UAM, IdiPaz, Arturo Duperier 4, 28029, Madrid, Spain. .,Biomedical Cancer Research Network (CIBERONC), 28029 Madrid, Spain
| | - Pablo Hurtado
- Biomedical Cancer Research Network (CIBERONC), 28029 Madrid, Spain.,Roche-CHUS Join Unit. Translational Medical Oncology Group (ONCOMET), Health Research Institute of Santiago de Compostela (IDIS), Travesía da Choupana s/n, Santiago de Compostela, 15706, A Coruña, Spain.
| | - Sandra Alijas
- Nano-Oncology and Translational Therapeutics Unit, Health Research Institute of Santiago de Compostela (IDIS), Travesía da Choupana s/n, Santiago de Compostela, 15706, A Coruña, Spain. .,Roche-CHUS Join Unit. Translational Medical Oncology Group (ONCOMET), Health Research Institute of Santiago de Compostela (IDIS), Travesía da Choupana s/n, Santiago de Compostela, 15706, A Coruña, Spain.
| | - Rafael López López
- Nano-Oncology and Translational Therapeutics Unit, Health Research Institute of Santiago de Compostela (IDIS), Travesía da Choupana s/n, Santiago de Compostela, 15706, A Coruña, Spain. .,Universidade de Santiago de Compostela (USC), Praza do Obradoiro, s/n, Santiago de Compostela, 15782, A Coruña, Spain.,Biomedical Cancer Research Network (CIBERONC), 28029 Madrid, Spain.,Roche-CHUS Join Unit. Translational Medical Oncology Group (ONCOMET), Health Research Institute of Santiago de Compostela (IDIS), Travesía da Choupana s/n, Santiago de Compostela, 15706, A Coruña, Spain.
| | - Roberto Piñeiro
- Biomedical Cancer Research Network (CIBERONC), 28029 Madrid, Spain.,Roche-CHUS Join Unit. Translational Medical Oncology Group (ONCOMET), Health Research Institute of Santiago de Compostela (IDIS), Travesía da Choupana s/n, Santiago de Compostela, 15706, A Coruña, Spain.
| | - Gema Moreno-Bueno
- Translational Cancer Research Laboratory, Department of Biochemistry, Autonomous University of Madrid, School of Medicine, "Alberto Sols" Biomedical Research Institute CSIC-UAM, IdiPaz, Arturo Duperier 4, 28029, Madrid, Spain. .,Biomedical Cancer Research Network (CIBERONC), 28029 Madrid, Spain.,MD Anderson International Foundation, Gómez Hemans s/n, 28033 Madrid, Spain
| | - María de la Fuente
- Nano-Oncology and Translational Therapeutics Unit, Health Research Institute of Santiago de Compostela (IDIS), Travesía da Choupana s/n, Santiago de Compostela, 15706, A Coruña, Spain. .,Universidade de Santiago de Compostela (USC), Praza do Obradoiro, s/n, Santiago de Compostela, 15782, A Coruña, Spain.,Biomedical Cancer Research Network (CIBERONC), 28029 Madrid, Spain.,DIVERSA Technologies SL, Edificio Emprendia, Universidade de Santiago de Compostela, Campus Vida s/n, 15782 Santiago de Compostela, Spain
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6
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Ahmadi Oskooei F, Mehrzad J, Asoodeh A, Motavalizadehkakhky A. Multi-spectroscopic characteristics of olive oil-based Quercetin nanoemulsion (QuNE) interactions with calf thymus DNA and its anticancer activity. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.120317] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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7
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Cascallar M, Hurtado P, Lores S, Pensado-López A, Quelle-Regaldie A, Sánchez L, Piñeiro R, de la Fuente M. Zebrafish as a platform to evaluate the potential of lipidic nanoemulsions for gene therapy in cancer. Front Pharmacol 2022; 13:1007018. [PMID: 36386231 PMCID: PMC9659613 DOI: 10.3389/fphar.2022.1007018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Accepted: 10/14/2022] [Indexed: 09/08/2024] Open
Abstract
Gene therapy is a promising therapeutic approach that has experienced significant groth in recent decades, with gene nanomedicines reaching the clinics. However, it is still necessary to continue developing novel vectors able to carry, protect, and release the nucleic acids into the target cells, to respond to the widespread demand for new gene therapies to address current unmet clinical needs. We propose here the use of zebrafish embryos as an in vivo platform to evaluate the potential of newly developed nanosystems for gene therapy applications in cancer treatment. Zebrafish embryos have several advantages such as low maintenance costs, transparency, robustness, and a high homology with the human genome. In this work, a new type of putrescine-sphingomyelin nanosystems (PSN), specifically designed for cancer gene therapy applications, was successfully characterized and demonstrated its potential for delivery of plasmid DNA (pDNA) and miRNA (miR). On one hand, we were able to validate a regulatory effect of the PSN/miR on gene expression after injection in embryos of 0 hpf. Additionally, experiments proved the potential of the model to study the transport of the associated nucleic acids (pDNA and miR) upon incubation in zebrafish water. The biodistribution of PSN/pDNA and PSN/miR in vivo was also assessed after microinjection into the zebrafish vasculature, demonstrating that the nucleic acids remained associated with the PSN in an in vivo environment, and could successfully reach disseminated cancer cells in zebrafish xenografts. Altogether, these results demonstrate the potential of zebrafish as an in vivo model to evaluate nanotechnology-based gene therapies for cancer treatment, as well as the capacity of the developed versatile PSN formulation for gene therapy applications.
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Affiliation(s)
- María Cascallar
- Nano-Oncology and Translational Therapeutics Group, Health Research Institute of Santiago de Compostela (IDIS), SERGAS, Santiago de Compostela, Spain
- Centro de Investigación Biomédica en Red Cáncer (CIBERONC), Madrid, Spain
- Universidade de Santiago de Compostela (USC), Santiago de Compostela, Spain
| | - Pablo Hurtado
- Centro de Investigación Biomédica en Red Cáncer (CIBERONC), Madrid, Spain
- Roche-Chus Joint Unit, Translational Medical Oncology Group, Oncomet, Health Research Institute of Santiago de Compostela, Santiago de Compostela, Spain
| | - Saínza Lores
- Nano-Oncology and Translational Therapeutics Group, Health Research Institute of Santiago de Compostela (IDIS), SERGAS, Santiago de Compostela, Spain
- Universidade de Santiago de Compostela (USC), Santiago de Compostela, Spain
| | - Alba Pensado-López
- Department of Zoology, Genetics and Physical Anthropology, Universidade de Santiago de Compostela, Campus de Lugo, Lugo, Spain
- Center for Research in Molecular Medicine and Chronic Diseases (CIMUS), Campus Vida, Universidade de Santiago de Compostela, Santiago de Compostela, Spain
| | - Ana Quelle-Regaldie
- Department of Zoology, Genetics and Physical Anthropology, Universidade de Santiago de Compostela, Campus de Lugo, Lugo, Spain
| | - Laura Sánchez
- Department of Zoology, Genetics and Physical Anthropology, Universidade de Santiago de Compostela, Campus de Lugo, Lugo, Spain
- Preclinical Animal Models Group, Health Research Institute of Santiago de Compostela (IDIS), Santiago de Compostela, Spain
| | - Roberto Piñeiro
- Centro de Investigación Biomédica en Red Cáncer (CIBERONC), Madrid, Spain
- Roche-Chus Joint Unit, Translational Medical Oncology Group, Oncomet, Health Research Institute of Santiago de Compostela, Santiago de Compostela, Spain
| | - María de la Fuente
- Nano-Oncology and Translational Therapeutics Group, Health Research Institute of Santiago de Compostela (IDIS), SERGAS, Santiago de Compostela, Spain
- Centro de Investigación Biomédica en Red Cáncer (CIBERONC), Madrid, Spain
- Universidade de Santiago de Compostela (USC), Santiago de Compostela, Spain
- DIVERSA Technologies S.L, Santiago de Compostela, Spain
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8
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Okada Y. Sperm chromatin structure: Insights from in vitro to in situ experiments. Curr Opin Cell Biol 2022; 75:102075. [PMID: 35344802 DOI: 10.1016/j.ceb.2022.102075] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2021] [Revised: 02/14/2022] [Accepted: 02/20/2022] [Indexed: 11/25/2022]
Abstract
The sperm genome is tightly packed into a minimal volume of sperm nuclei. Sperm chromatin is highly condensed by protamines (PRMs) after histone-protamine replacement, and the majority of the sperm genome forms a nucleo-protamine structure, namely, the PRM-DNA complex. The outline of sperm chromatin structure was proposed 30 years ago, and the details have been explored by approaches from several independent research fields including male reproduction and infertility, DNA biopolymer, and most recently, genome-wide sequence-based approaches. In this review, the history of research on sperm chromatin structure is briefly described, and the progress of recent related studies is summarized to obtain a more integrated view for the sperm chromatin, an extremely compacted "black box."
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Affiliation(s)
- Yuki Okada
- Institute for Quantitative Biosciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo, 113-0032, Japan.
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9
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Navakoudis E, Kotzabasis K. Polyamines: Α bioenergetic smart switch for plant protection and development. JOURNAL OF PLANT PHYSIOLOGY 2022; 270:153618. [PMID: 35051689 DOI: 10.1016/j.jplph.2022.153618] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/26/2021] [Revised: 01/09/2022] [Accepted: 01/10/2022] [Indexed: 05/27/2023]
Abstract
The present review highlights the bioenergetic role of polyamines in plant protection and development and proposes a universal model for describing polyamine-mediated stress responses. Any stress condition induces an excitation pressure on photosystem II by reforming the photosynthetic apparatus. To control this phenomenon, polyamines act directly on the molecular structure and function of the photosynthetic apparatus as well as on the components of the chemiosmotic proton-motive force (ΔpH/Δψ), thus regulating photochemical (qP) and non-photochemical quenching (NPQ) of energy. The review presents the mechanistic characteristics that underline the key role of polyamines in the structure, function, and bioenergetics of the photosynthetic apparatus upon light adaptation and/or under stress conditions. By following this mechanism, it is feasible to make stress-sensitive plants to be tolerant by simply altering their polyamine composition (especially the ratio of putrescine to spermine), either chemically or by light regulation.
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Affiliation(s)
- Eleni Navakoudis
- Department of Biology, University of Crete, Voutes University Campus, 70013, Heraklion, Greece; Department of Chemical Engineering, Cyprus University of Technology, 3603, Limassol, Cyprus
| | - Kiriakos Kotzabasis
- Department of Biology, University of Crete, Voutes University Campus, 70013, Heraklion, Greece.
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10
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Malina J, Kostrhunova H, Novohradsky V, Scott P, Brabec V. Metallohelix vectors for efficient gene delivery via cationic DNA nanoparticles. Nucleic Acids Res 2022; 50:674-683. [PMID: 35018455 PMCID: PMC8789045 DOI: 10.1093/nar/gkab1277] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2021] [Revised: 12/07/2021] [Accepted: 12/14/2021] [Indexed: 01/31/2023] Open
Abstract
The design of efficient and safe gene delivery vehicles remains a major challenge for the application of gene therapy. Of the many reported gene delivery systems, metal complexes with high affinity for nucleic acids are emerging as an attractive option. We have discovered that certain metallohelices-optically pure, self-assembling triple-stranded arrays of fully encapsulated Fe-act as nonviral DNA delivery vectors capable of mediating efficient gene transfection. They induce formation of globular DNA particles which protect the DNA from degradation by various restriction endonucleases, are of suitable size and electrostatic potential for efficient membrane transport and are successfully processed by cells. The activity is highly structure-dependent-compact and shorter metallohelix enantiomers are far less efficient than less compact and longer enantiomers.
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Affiliation(s)
- Jaroslav Malina
- Czech Academy of Sciences, Institute of Biophysics, Brno, CZ-61265, Czech Republic
| | - Hana Kostrhunova
- Czech Academy of Sciences, Institute of Biophysics, Brno, CZ-61265, Czech Republic
| | - Vojtech Novohradsky
- Czech Academy of Sciences, Institute of Biophysics, Brno, CZ-61265, Czech Republic
| | - Peter Scott
- Department of Chemistry, University of Warwick, Coventry, CV4 7AL, UK
| | - Viktor Brabec
- Czech Academy of Sciences, Institute of Biophysics, Brno, CZ-61265, Czech Republic
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11
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Buyukdagli S. Dielectric Manipulation of Polymer Translocation Dynamics in Engineered Membrane Nanopores. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2022; 38:122-131. [PMID: 34958582 DOI: 10.1021/acs.langmuir.1c02174] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
The alteration of the dielectric membrane properties by membrane engineering techniques such as carbon nanotube (CNT) coating opens the way to novel molecular transport strategies for biosensing purposes. In this article, we predict a macromolecular transport mechanism enabling the dielectric manipulation of the polymer translocation dynamics in dielectric membrane pores confining mixed electrolytes. In the giant permittivity regime of these engineered membranes governed by attractive polarization forces, multivalent ions adsorbed by the membrane nanopore trigger a monovalent ion separation and set an electroosmotic counterion flow. The drag force exerted by this flow is sufficiently strong to suppress and invert the electrophoretic velocity of anionic polymers and also to generate the mobility of neutral polymers whose speed and direction can be solely adjusted by the charge and concentration of the added multivalent ions. These features identify the dielectrically generated transport mechanism as an efficient means to drive overall neutral or weakly charged analytes that cannot be controlled by an external voltage. We also reveal that, in anionic polymer translocation, multivalent cation addition into the monovalent salt solution amplifies the electric current signal by several factors. The signal amplification is caused by the electrostatic many-body interactions replacing the monovalent polymer counterions by the multivalent cations of higher electric mobility. The strength of this electrokinetic charge discrimination points out the potential of multivalent ions as current amplifiers capable of providing boosted resolution in nanopore-based biosensing techniques.
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12
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Matthaiou EI, Guo Y, Barar J, Sandaltzopoulos R, Kandalaft LE, Li C, Coukos G, Omidi Y. TEM1-targeting PEGylated PLGA shikonin nanoformulation for immunomodulation and eradication of ovarian cancer. BIOIMPACTS : BI 2022; 12:65-86. [PMID: 35087718 PMCID: PMC8783079 DOI: 10.34172/bi.2021.23511] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/16/2020] [Revised: 12/01/2021] [Accepted: 12/08/2021] [Indexed: 11/21/2022]
Abstract
Introduction: Tumor endothelial marker 1 (TEM1) is expressed by tumor vascular endothelial cells in various cancers. Methods: Here, we developed poly(lactic-co-glycolic acid) (PLGA) nanoparticles (NPs) PEGylated with polyethylene glycol (PEG) and functionalized with anti-TEM1 antibody fragment (78Fc) and loaded them with necroptosis-inducing agent shikonin (SHK) (78Fc-PLGA-SHK NPs). Results: The nanoformulation showed a smooth spherical shape (~120 nm; the ζ potential of -30 mV) with high drug entrapment and bioconjugation efficiencies (~92% and ~90%, respectively) and a sustained-release profile in serum. Having significant toxicity in vitro (e.g., MS1 and TC1 cells), the nanoformulation dramatically increased the cytotoxicity in the TC1 murine lung carcinoma subcutaneous and intravenous/metastatic models as aggressive tumor models. The injection of the 78Fc-PLGA-SHK NPs to the MS1-xenograft mice resulted in significantly higher accumulation and effects in the TEM1-positive tumor targets, while they were excreted via urine track without retaining in the liver/spleen. In the TC1 subcutaneous model, C57/BL6 mice treated with the 78Fc-PLGA-SHK NPs revealed a significant therapeutic effect. The mice, which were tumor-free after receiving the nanoformulation, were re-challenged with the TC1 cells to investigate the immune response. These animals became tumor-free a week after the injection of TC1 cells. Conclusion: Based on these findings, we propose the 78Fc-PLGA-SHK NPs as a highly effective immunostimulating nanomedicine against the TEM1-expressing cells for targeted therapy of solid tumors including ovarian cancer.
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Affiliation(s)
- Efthymia-Iliana Matthaiou
- Ovarian Cancer Research Center, Perelman School of Medicine, University of Pennsylvania, Philadelphia, USA
,Department of Molecular Biology and Genetics, Democritus University of Thrace, Alexandroupolis, Greece
| | - Yi Guo
- Ovarian Cancer Research Center, Perelman School of Medicine, University of Pennsylvania, Philadelphia, USA
,University of Shanghai, Shanghai, China
| | - Jaleh Barar
- Ovarian Cancer Research Center, Perelman School of Medicine, University of Pennsylvania, Philadelphia, USA
,Research Center for Pharmaceutical Nanotechnology, Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Raphael Sandaltzopoulos
- Department of Molecular Biology and Genetics, Democritus University of Thrace, Alexandroupolis, Greece
| | - Lana E. Kandalaft
- Ludwig Institute for Cancer Research, Lausanne and University of Lausanne, Lausanne, Switzerland
| | - Chunsheng Li
- Ovarian Cancer Research Center, Perelman School of Medicine, University of Pennsylvania, Philadelphia, USA
,Corresponding authors: Chunsheng Li, ; Yadollah Omidi,
| | - George Coukos
- Ovarian Cancer Research Center, Perelman School of Medicine, University of Pennsylvania, Philadelphia, USA
,Ludwig Institute for Cancer Research, Lausanne and University of Lausanne, Lausanne, Switzerland
| | - Yadollah Omidi
- Ovarian Cancer Research Center, Perelman School of Medicine, University of Pennsylvania, Philadelphia, USA
,Department of Pharmaceutical Sciences, College of Pharmacy, Nova Southeastern University, Fort Lauderdale, FL 33328, USA
,Corresponding authors: Chunsheng Li, ; Yadollah Omidi,
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13
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San Anselmo M, Postigo A, Lancelot A, Serrano JL, Sierra T, Hernandez-Ainsa S. Dendron-functionalised hyperbranched bis-MPA polyesters as efficient non-viral vectors for gene therapy in different cell lines. Biomater Sci 2022; 10:2706-2719. [DOI: 10.1039/d2bm00365a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Gene therapy has become a relevant tool in the biomedical field to treat or even prevent some diseases. The effective delivery of genetic material into the cell remains a crucial...
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14
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Higher-order structure of DNA determines its positioning in cell-size droplets under crowded conditions. PLoS One 2021; 16:e0261736. [PMID: 34937071 PMCID: PMC8694483 DOI: 10.1371/journal.pone.0261736] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Accepted: 12/08/2021] [Indexed: 11/19/2022] Open
Abstract
Background It is becoming clearer that living cells use water/water (w/w) phase separation to form membraneless organelles that exhibit various important biological functions. Currently, it is believed that the specific localization of biomacromolecules, including DNA, RNA and proteins in w/w microdroplets is closely related to their bio-activity. Despite the importance of this possible role of micro segregation, our understanding of the underlying physico-chemical mechanism is still unrefined. Further research to unveil the underlying mechanism of the localization of macromolecules in relation to their steric conformation in w/w microdroplets is needed. Principal findings Single-DNA observation of genome-size DNA (T4 GT7 bacteriophage DNA; 166kbp) by fluorescence microscopy revealed that DNAs are spontaneously incorporated into w/w microdroplets generated in a binary aqueous polymer solution with polyethylene glycol (PEG) and dextran (DEX). Interestingly, DNAs with elongated coil and shrunken conformations exhibit Brownian fluctuation inside the droplet. On the other hand, tightly packed compact globules, as well as assemblies of multiple condensed DNAs, tend to be located near the interface in the droplet. Conclusion and significance The specific localization of DNA molecules depending on their higher-order structure occurs in w/w microdroplet phase-separation solution under a binary aqueous polymer solution. Such an aqueous solution with polymers mimics the crowded conditions in living cells, where aqueous macromolecules exist at a level of 30–40 weight %. The specific positioning of DNA depending on its higher-order structure in w/w microdroplets is expected to provide novel insights into the mechanism and function of membraneless organelles and micro-segregated particles in living cells.
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15
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Mostovaya O, Padnya P, Shiabiev I, Mukhametzyanov T, Stoikov I. PAMAM-calix-dendrimers: Synthesis and Thiacalixarene Conformation Effect on DNA Binding. Int J Mol Sci 2021; 22:ijms222111901. [PMID: 34769329 PMCID: PMC8585033 DOI: 10.3390/ijms222111901] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2021] [Revised: 10/29/2021] [Accepted: 10/30/2021] [Indexed: 12/16/2022] Open
Abstract
A convenient method for the synthesis of the first generation PAMAM dendrimers based on the thiacalix[4]arene has been developed for the first time. Three new PAMAM-calix-dendrimers with the macrocyclic core in cone, partial cone, and 1,3-alternate conformations were obtained with high yields. The interaction of the obtained compounds with salmon sperm DNA resulted in the formation of the associates of the size up to 200 nm, as shown by the UV-Vis spectroscopy, DLS, and TEM. It was demonstrated by the CD method that the structure of the DNA did not undergo significant changes upon binding. The PAMAM-calix-dendrimer based on the macrocycle in cone conformation stabilized DNA and prevented its degradation.
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Affiliation(s)
| | - Pavel Padnya
- Correspondence: (P.P.); (I.S.); Tel.: +7-843-233-7241 (I.S.)
| | | | | | - Ivan Stoikov
- Correspondence: (P.P.); (I.S.); Tel.: +7-843-233-7241 (I.S.)
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16
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Manouchehri S, Zarrintaj P, Saeb MR, Ramsey JD. Advanced Delivery Systems Based on Lysine or Lysine Polymers. Mol Pharm 2021; 18:3652-3670. [PMID: 34519501 DOI: 10.1021/acs.molpharmaceut.1c00474] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Polylysine and materials that integrate lysine form promising drug delivery platforms. As a cationic macromolecule, a polylysine polymer electrostatically interacts with cells and is efficiently internalized, thereby enabling intracellular delivery. Although polylysine is intrinsically pH-responsive, the conjugation with different functional groups imparts smart, stimuli-responsive traits by adding pH-, temperature-, hypoxia-, redox-, and enzyme-responsive features for enhanced delivery of therapeutic agents. Because of such characteristics, polylysine has been used to deliver various cargos such as small-molecule drugs, genes, proteins, and imaging agents. Furthermore, modifying contrast agents with polylysine has been shown to improve performance, including increasing cellular uptake and stability. In this review, the use of lysine residues, peptides, and polymers in various drug delivery systems has been discussed comprehensively to provide insight into the design and robust manufacturing of lysine-based delivery platforms.
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Affiliation(s)
- Saeed Manouchehri
- School of Chemical Engineering, Oklahoma State University, 420 Engineering North, Stillwater, Oklahoma 74078, United States
| | - Payam Zarrintaj
- School of Chemical Engineering, Oklahoma State University, 420 Engineering North, Stillwater, Oklahoma 74078, United States
| | | | - Joshua D Ramsey
- School of Chemical Engineering, Oklahoma State University, 420 Engineering North, Stillwater, Oklahoma 74078, United States
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17
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Della Rosa G, Di Corato R, Carpi S, Polini B, Taurino A, Tedeschi L, Nieri P, Rinaldi R, Aloisi A. Tailoring of silica-based nanoporous pod by spermidine multi-activity. Sci Rep 2020; 10:21142. [PMID: 33273530 PMCID: PMC7712788 DOI: 10.1038/s41598-020-77957-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2020] [Accepted: 11/17/2020] [Indexed: 11/20/2022] Open
Abstract
Ubiquitous in nature, polyamines (PAs) are a class of low-molecular aliphatic amines critically involved in cell growth, survival and differentiation. The polycation behavior is validated as a successful strategy in delivery systems to enhance oligonucleotide loading and cellular uptake. In this study, the chemical features and the functional roles of the PA spermidine are synergistically exploited in the synthesis and bioactive functionalization of SiO2-based structures. Inspired by biosilicification, the role of spermidine is assessed both as catalyst and template in a biomimetic one-pot synthesis of dense silica-based particles (SPs) and as a competitive agent in an interfacial reassembly strategy, to empty out SPs and generate spermidine-decorated hollow silica nanoporous pods (spd-SNPs). Spermidine bioactivity is then employed for targeting tumor cell over-expressed polyamine transport system (PTS) and for effective delivery of functional miRNA into melanoma cells. Spermidine decoration promotes spd-SNP cell internalization mediated by PTS and along with hollow structure enhances oligonucleotide loading. Accordingly, the functional delivery of the tumor suppressor miR-34a 3p resulted in intracellular accumulation of histone-complexed DNA fragments associated with apoptosis. Overall, the results highlight the potential of spd-SNP as a multi-agent anticancer therapy.
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Affiliation(s)
- Giulia Della Rosa
- Mathematics and Physics "E. De Giorgi" Department, University of Salento, Via Arnesano, 73100, Lecce, Italy
- Department of Neuroscience and Brain Technologies (NBT), Istituto Italiano di Tecnologia (IIT), Via Morego, 16163, Genova, Italy
| | - Riccardo Di Corato
- Mathematics and Physics "E. De Giorgi" Department, University of Salento, Via Arnesano, 73100, Lecce, Italy
- Center for Biomolecular Nanotechnologies (CBN), Istituto Italiano di Tecnologia (IIT), Via Barsanti, Arnesano, 73010, Lecce, Italy
- Institute for Microelectronics and Microsystems (IMM), CNR, Via Monteroni, 73100, Lecce, Italy
| | - Sara Carpi
- Department of Pharmacy, University of Pisa, Via Bonanno Pisano, 56126, Pisa, Italy
- Centro Interdipartimentale di Farmacologia Marina, MARine PHARMA Center, University of Pisa, Via Bonanno Pisano, 56126, Pisa, Italy
| | - Beatrice Polini
- Department of Pharmacy, University of Pisa, Via Bonanno Pisano, 56126, Pisa, Italy
| | - Antonietta Taurino
- Institute for Microelectronics and Microsystems (IMM), CNR, Via Monteroni, 73100, Lecce, Italy
| | - Lorena Tedeschi
- Oligonucleotides Laboratory, Institute of Clinical Physiology (IFC), CNR, Via Moruzzi, 56124, Pisa, Italy
| | - Paola Nieri
- Department of Pharmacy, University of Pisa, Via Bonanno Pisano, 56126, Pisa, Italy
- Centro Interdipartimentale di Farmacologia Marina, MARine PHARMA Center, University of Pisa, Via Bonanno Pisano, 56126, Pisa, Italy
| | - Rosaria Rinaldi
- Mathematics and Physics "E. De Giorgi" Department, University of Salento, Via Arnesano, 73100, Lecce, Italy
- Institute for Microelectronics and Microsystems (IMM), CNR, Via Monteroni, 73100, Lecce, Italy
- ISUFI, University of Salento, Via Monteroni, 73100, Lecce, Italy
| | - Alessandra Aloisi
- Institute for Microelectronics and Microsystems (IMM), CNR, Via Monteroni, 73100, Lecce, Italy.
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18
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Dudek M, Tarnowicz-Staniak N, Deiana M, Pokładek Z, Samoć M, Matczyszyn K. Two-photon absorption and two-photon-induced isomerization of azobenzene compounds. RSC Adv 2020; 10:40489-40507. [PMID: 35520821 PMCID: PMC9057575 DOI: 10.1039/d0ra07693g] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2020] [Accepted: 10/18/2020] [Indexed: 01/05/2023] Open
Abstract
The process of two-photon-induced isomerization occurring in various organic molecules, among which azobenzene derivatives hold a prominent position, offers a wide range of functionalities, which can be used in both material and life sciences. This review provides a comprehensive description of nonlinear optical (NLO) properties of azobenzene (AB) derivatives whose geometries can be switched through two-photon absorption (TPA). Employing the nonlinear excitation process allows for deeper penetration of light into the tissues and provides opportunities to regulate biological systems in a non-invasive manner. At the same time, the tight focus of the beam needed to induce nonlinear absorption helps to improve the spatial resolution of the photoinduced structures. Since near-infrared (NIR) wavelengths are employed, the lower photon energies compared to usual one-photon excitation (typically, the azobenzene geometry change from trans to cis form requires the use of UV photons) cause less damage to the biological samples. Herein, we present an overview of the strategies for optimizing azobenzene-based photoswitches for efficient two-photon excitation (TPE) and the potential applications of two-photon-induced isomerization of azobenzenes in biological systems: control of ion flow in ion channels or control of drug release, as well as in materials science, to fabricate data storage media, optical filters, diffraction elements etc., based on phenomena like photoinduced anisotropy, mass transport and phase transition. The extant challenges in the field of two-photon switchable azomolecules are discussed.
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Affiliation(s)
- Marta Dudek
- Advanced Materials Engineering and Modelling Group, Faculty of Chemistry, Wroclaw Unviersity of Science and Technology Wyb. Wyspianskiego 27 50-370 Wroclaw Poland
| | - Nina Tarnowicz-Staniak
- Advanced Materials Engineering and Modelling Group, Faculty of Chemistry, Wroclaw Unviersity of Science and Technology Wyb. Wyspianskiego 27 50-370 Wroclaw Poland
| | - Marco Deiana
- Advanced Materials Engineering and Modelling Group, Faculty of Chemistry, Wroclaw Unviersity of Science and Technology Wyb. Wyspianskiego 27 50-370 Wroclaw Poland
| | - Ziemowit Pokładek
- Advanced Materials Engineering and Modelling Group, Faculty of Chemistry, Wroclaw Unviersity of Science and Technology Wyb. Wyspianskiego 27 50-370 Wroclaw Poland
| | - Marek Samoć
- Advanced Materials Engineering and Modelling Group, Faculty of Chemistry, Wroclaw Unviersity of Science and Technology Wyb. Wyspianskiego 27 50-370 Wroclaw Poland
| | - Katarzyna Matczyszyn
- Advanced Materials Engineering and Modelling Group, Faculty of Chemistry, Wroclaw Unviersity of Science and Technology Wyb. Wyspianskiego 27 50-370 Wroclaw Poland
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19
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Guler Gokce Z, Birol SZ, Mitina N, Harhay K, Finiuk N, Glasunova V, Stoika R, Ercelen S, Zaichenko A. Novel amphiphilic block-copolymer forming stable micelles and interpolyelectrolyte complexes with DNA for efficient gene delivery. INT J POLYM MATER PO 2020. [DOI: 10.1080/00914037.2020.1740988] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Zeliha Guler Gokce
- Center Genetic Engineering and Biotechnology Institute, TUBITAK Marmara Research, Kocaeli, Turkey
- Department of Nano Science and Nano Engineering, Istanbul Technical University, Istanbul, Turkey
| | - Semra Zuhal Birol
- Center Genetic Engineering and Biotechnology Institute, TUBITAK Marmara Research, Kocaeli, Turkey
- Department of Nano Science and Nano Engineering, Istanbul Technical University, Istanbul, Turkey
| | - Nataliya Mitina
- Department of Organic Chemistry, Lviv Polytechnic National University, Lviv, Ukraine
| | - Khrystyna Harhay
- Department of Organic Chemistry, Lviv Polytechnic National University, Lviv, Ukraine
| | - Nataliya Finiuk
- Department of Regulation of Cell Proliferation, Institute of Cell Biology, National Academy of Sciences of Ukraine, Lviv, Ukraine
| | - Valentina Glasunova
- Department of Physical Materials, Donetsk O. O. Galkin Institute of Physics and Engineering, National Academy of Sciences of Ukraine, Donetsk, Ukraine
| | - Rostyslav Stoika
- Department of Regulation of Cell Proliferation, Institute of Cell Biology, National Academy of Sciences of Ukraine, Lviv, Ukraine
| | - Sebnem Ercelen
- Center Genetic Engineering and Biotechnology Institute, TUBITAK Marmara Research, Kocaeli, Turkey
| | - Alexander Zaichenko
- Department of Organic Chemistry, Lviv Polytechnic National University, Lviv, Ukraine
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20
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Capella Roca B, Lao NT, Clynes M, Doolan P. Investigation and circumvention of transfection inhibition by ferric ammonium citrate in serum-free media for Chinese hamster ovary cells. Biotechnol Prog 2019; 36:e2954. [PMID: 31850663 DOI: 10.1002/btpr.2954] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2019] [Revised: 11/13/2019] [Accepted: 12/10/2019] [Indexed: 11/08/2022]
Abstract
While reliable transfection methods are essential for Chinese hamster ovary (CHO) cell line engineering, reduced transfection efficiencies have been observed in several commercially prepared media. In this study, we aimed to assess common media additives that impede efficiency mediated by three chemical transfection agents: liposomal-based (Lipofectamine 2000), polymer-based (TransIT-X2), and lipopolyplex-based (TransIT-PRO). An in-house GFP-expressing vector and serum-free medium (BCR-F12: developed for the purposes of this study) were used to analyze transient transfection efficiencies of three CHO cell lines (CHO-K1, DG44, DP12). Compared to a selection of commercially available media, BCR-F12 displayed challenges associated with transfection in vendor-prepared formulations, with no detection when liposomal-based methods were used, reduced (<3%) efficiency observed when polymer-based methods were used and only limited efficiency (25%) with lipopolyplexes. Following a stepwise removal protocol, ferric ammonium citrate (FAC) was identified as the critical factor impeding transfection, with transfection enabled with the liposomal- and polymer-based methods and a 1.3- to 7-fold increased lipopolyplex efficiency observed in all cell lines in FAC-depleted media (-FAC), although lower viabilities were observed. Subsequent early addition of FAC (0.5-5 hr post-transfection) revealed 0.5 hr post-transfection as the optimal time to supplement in order to achieve transfection efficiencies similar to -FAC medium while retaining optimal cellular viabilities. In conclusion, FAC was observed to interfere with DNA transfection acting at early stages in all transfection agents and all cell lines studied, and a practical strategy to circumvent this problem is suggested.
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Affiliation(s)
- Berta Capella Roca
- National Institute for Cellular Biotechnology, Dublin City University, Dublin 9, Ireland.,SSPC-SFI Centre for Pharmaceuticals, Dublin City University, Dublin 9, Ireland
| | - Nga T Lao
- National Institute for Bioprocessing Research and Training, University College Dublin, Dublin, Ireland
| | - Martin Clynes
- National Institute for Cellular Biotechnology, Dublin City University, Dublin 9, Ireland.,SSPC-SFI Centre for Pharmaceuticals, Dublin City University, Dublin 9, Ireland
| | - Padraig Doolan
- National Institute for Cellular Biotechnology, Dublin City University, Dublin 9, Ireland
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21
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Cuenca VE, Martinelli H, Ramirez MDLA, Ritacco HA, Andreozzi P, Moya SE. Polyphosphate Poly(amine) Nanoparticles: Self-Assembly, Thermodynamics, and Stability Studies. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:14300-14309. [PMID: 31596094 DOI: 10.1021/acs.langmuir.9b02636] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The interaction of polyamine poly(allylamine hydrochloride) with Na3PO4, Na4P2O7, Na5P3O10, Na6P6O18, and (NaPO3)26 salts and the formation of polyamine phosphate nanoparticles (PANs) are studied here. Dynamic light scattering, isothermal titration calorimetry (ITC), electrophoretical mobility measurements, atomic force microscopy, and transmission electron microscopy are used to explore the formation, stability, and pH sensitivity of PANs. An optimal concentration for PAN formation is found for each phosphate salt in terms of the most stable size and lowest polydispersity index of the nanoparticles. The minimal concentration of phosphate ions for PAN formation decreases with the increasing number of phosphate groups per phosphate salt. ITC measurements show that all polyphosphates display a characteristic endothermic peak, which is not present when monophosphates are used for PAN formation. pH stability of PANs depends on the type of phosphate salt. PANs formed with small phosphates show a small window of stability with pH from 8 to 9, while those formed with long phosphates are stable in more acidic pH environments. Our findings open multiple possibilities for fine-tuning the pH sensitivity of PANs by varying phosphate salts for potential applications in drug delivery.
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Affiliation(s)
- Victor Ezequiel Cuenca
- Instituto de Física del Sur (IFISUR), Departamento de Física , Universidad Nacional del Sur (UNS), CONICET , Av. L. N. Alem 1253 , B8000CPB Bahía Blanca , Argentina
| | - Hernan Martinelli
- Instituto de Física del Sur (IFISUR), Departamento de Física , Universidad Nacional del Sur (UNS), CONICET , Av. L. N. Alem 1253 , B8000CPB Bahía Blanca , Argentina
| | | | - Hernan Alejandro Ritacco
- Instituto de Física del Sur (IFISUR), Departamento de Física , Universidad Nacional del Sur (UNS), CONICET , Av. L. N. Alem 1253 , B8000CPB Bahía Blanca , Argentina
| | - Patrizia Andreozzi
- CIC biomaGUNE , Paseo de Miramón 182 , 20014 Donostia-San Sebastián , Spain
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22
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Nishio T, Yoshikawa Y, Shew CY, Umezawa N, Higuchi T, Yoshikawa K. Specific effects of antitumor active norspermidine on the structure and function of DNA. Sci Rep 2019; 9:14971. [PMID: 31628357 PMCID: PMC6802174 DOI: 10.1038/s41598-019-50943-1] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2019] [Accepted: 09/23/2019] [Indexed: 01/11/2023] Open
Abstract
We compared the effects of trivalent polyamines, spermidine (SPD) and norspermidine (NSPD), a chemical homologue of SPD, on the structure of DNA and gene expression. The chemical structures of SPD and NSPD are different only with the number of methylene groups between amine groups, [N-3-N-4-N] and [N-3-N-3-N], respectively. SPD plays vital roles in cell function and survival, including in mammals. On the other hand, NSPD has antitumor activity and is found in some species of plants, bacteria and algae, but not in humans. We found that both polyamines exhibit biphasic effect; enhancement and inhibition on in vitro gene expression, where SPD shows definitely higher potency in enhancement but NSPD causes stronger inhibition. Based on the results of AFM (atomic force microscopy) observations together with single DNA measurements with fluorescence microscopy, it becomes clear that SPD tends to align DNA orientation, whereas NSPD induces shrinkage with a greater potency. The measurement of binding equilibrium by NMR indicates that NSPD shows 4-5 times higher affinity to DNA than SPD. Our theoretical study with Monte Carlo simulation provides the insights into the underlying mechanism of the specific effect of NSPD on DNA.
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Affiliation(s)
- Takashi Nishio
- Faculty of Life and Medical Sciences, Doshisha University, Kyotanabe, 610-0394, Japan
| | - Yuko Yoshikawa
- Faculty of Life and Medical Sciences, Doshisha University, Kyotanabe, 610-0394, Japan
| | - Chwen-Yang Shew
- Doctoral Program in Chemistry, The Graduate Center of the City University of New York, New York, 10016, USA.
- Department of Chemistry, College of Staten Island, Staten Island, New York, 10314, USA.
| | - Naoki Umezawa
- Graduate School of Pharmaceutical Sciences, Nagoya City University, Nagoya, 467-8603, Japan
| | - Tsunehiko Higuchi
- Graduate School of Pharmaceutical Sciences, Nagoya City University, Nagoya, 467-8603, Japan
| | - Kenichi Yoshikawa
- Faculty of Life and Medical Sciences, Doshisha University, Kyotanabe, 610-0394, Japan.
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23
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Thomas TJ, Tajmir-Riahi HA, Pillai CKS. Biodegradable Polymers for Gene Delivery. Molecules 2019; 24:molecules24203744. [PMID: 31627389 PMCID: PMC6832905 DOI: 10.3390/molecules24203744] [Citation(s) in RCA: 77] [Impact Index Per Article: 15.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2019] [Revised: 10/07/2019] [Accepted: 10/08/2019] [Indexed: 12/13/2022] Open
Abstract
The cellular transport process of DNA is hampered by cell membrane barriers, and hence, a delivery vehicle is essential for realizing the potential benefits of gene therapy to combat a variety of genetic diseases. Virus-based vehicles are effective, although immunogenicity, toxicity and cancer formation are among the major limitations of this approach. Cationic polymers, such as polyethyleneimine are capable of condensing DNA to nanoparticles and facilitate gene delivery. Lack of biodegradation of polymeric gene delivery vehicles poses significant toxicity because of the accumulation of polymers in the tissue. Many attempts have been made to develop biodegradable polymers for gene delivery by modifying existing polymers and/or using natural biodegradable polymers. This review summarizes mechanistic aspects of gene delivery and the development of biodegradable polymers for gene delivery.
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Affiliation(s)
- T J Thomas
- Department of Medicine, Rutgers Robert Wood Johnson Medical School, KTL N102, 675 Hoes Lane, Piscataway, NJ 08854, USA.
- Rutgers Cancer Institute of New Jersey, New Brunswick, NJ 08901, USA.
| | | | - C K S Pillai
- Department of Chemistry-Biochemistry-Physics, University of Québec in Trois-Rivières, C. P. 500, Trois-Rivières, QC G9A 5H7, Canada.
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24
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Moss KH, Popova P, Hadrup SR, Astakhova K, Taskova M. Lipid Nanoparticles for Delivery of Therapeutic RNA Oligonucleotides. Mol Pharm 2019; 16:2265-2277. [PMID: 31063396 DOI: 10.1021/acs.molpharmaceut.8b01290] [Citation(s) in RCA: 61] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Gene therapy is an exciting field that has the potential to address emerging scientific and therapeutic tasks. RNA-based gene therapy has made remarkable progress in recent decades. Nevertheless, efficient targeted delivery of RNA therapeutics is still a prerequisite for entering the clinics. In this review, we introduce current delivery methods for RNA gene therapeutics based on lipid nanoparticles (LNPs). We focus on the clinical appeal of recent RNA NPs and discuss existing challenges of fabrication and screening LNP candidates for effective translation into drugs of human metabolic diseases and cancer.
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Affiliation(s)
- Keith Henry Moss
- DTU Health Technology , 202 Kemitorvet , 2800 Kongens Lyngby , Denmark
| | - Petya Popova
- DTU Chemistry , 206-207 Kemitorvet , 2800 Kongens Lyngby , Denmark
| | - Sine R Hadrup
- DTU Health Technology , 202 Kemitorvet , 2800 Kongens Lyngby , Denmark
| | - Kira Astakhova
- DTU Chemistry , 206-207 Kemitorvet , 2800 Kongens Lyngby , Denmark
| | - Maria Taskova
- DTU Chemistry , 206-207 Kemitorvet , 2800 Kongens Lyngby , Denmark
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25
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Ma F, Wang Y, Yang G. The Modulation of Chitosan-DNA Interaction by Concentration and pH in Solution. Polymers (Basel) 2019; 11:polym11040646. [PMID: 30970619 PMCID: PMC6523332 DOI: 10.3390/polym11040646] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2019] [Revised: 04/03/2019] [Accepted: 04/08/2019] [Indexed: 12/21/2022] Open
Abstract
Chitosan has been widely used to prepare a DNA carrier for highly efficient and non-toxic gene therapy. In the present study, we investigated DNA charge neutralization and compaction by chitosan in solutions of various pH levels by dynamic light scattering (DLS), magnetic tweezers (MT), and atomic force microscopy (AFM). We found that when chitosan concentration is higher than a critical value (0.2 µM), corresponding the ratio of phosphate and NH2 in chitosan k=1.9, the electrophoretic mobility of DNA-chitosan complex maintains an almost constant value when pH of solution is less 6.5, the isoelectric point of chitosan. Then it decreases with increasing pH of solution. However, when chitosan concentration is lower than the critical value, the mobility of the complex increases with pH in the range of acidity and reaches the maximum when the pH of the solution approaches the isoelectric point of chitosan. It finally decreases with increasing pH in solutions. The corresponding condensing force of the DNA-chitosan complex measured by single molecular MT changes accordingly with its charge neutralization in the same solution concentration (20 µM) and is consistent with the DLS measurements. This phenomenon might be related to the weakening interaction between DNA and chitosan in low pH solutions, and is verified by measuring the ratio of free chitosan to DNA complex in solutions. We also observed the various morphologies of DNA-chitosan complexes, such as ring, rod, flower, braid, and other structures, under different degrees of deacetylation, molecular weight, solution concentration and pH in solutions by AFM.
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Affiliation(s)
- Fangqin Ma
- Department of Physics, Wenzhou University, Wenzhou 325035, China.
| | - Yanwei Wang
- Department of Physics, Wenzhou University, Wenzhou 325035, China.
| | - Guangcan Yang
- Department of Physics, Wenzhou University, Wenzhou 325035, China.
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Salehian P, Shareghi B, Hosseini-Koupaei M. Comparative studies on the interaction between biogenic polyamines and bovine intestinal alkaline phosphatases: spectroscopic and theoretical approaches. J Biol Phys 2019; 45:89-106. [PMID: 30734136 DOI: 10.1007/s10867-018-9517-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2017] [Accepted: 12/12/2018] [Indexed: 11/28/2022] Open
Abstract
In this work, the effect of two organic polyamines (spermine and spermidine) on the fluorescence intensity and activity of bovine intestinal alkaline phosphatase (BIALP) are investigated. The interaction of BIALP with spermine and spermidine was studied in a diethanolamine buffer with 0.5 mM magnesium chloride (pH 9.8) and at two temperatures by using the fluorescence quenching method. Furthermore, the activity of enzyme was studied using UV-Vis spectrophotometry in a diethanolamine buffer with 0.5 mM magnesium chloride, at 37 °C, in the absence and presence of different concentrations of each polyamine (0-5 mM). It was demonstrated that both polyamines quenched the intrinsic fluorescence of BIALP by the static quenching process. Based on these results, the values of the binding site for both polyamines were close to each other and decreased by increasing the temperature. The calculated thermodynamic parameters (ΔH° < 0 and ΔS° < 0) also showed that the acting forces in the formation of the complex between BIALP and polyamines were hydrogen bonds and van der Waals forces with an overall favorable Gibbs free energy change (∆G° < 0). In addition, kinetic studies revealed that these polyamines enhanced the enzyme activity of BIALP in a concentration-dependent manner. This result also indicated that spermine had more of an effect on BIALP activity in the same condition. Also, molecular docking as well as thermodynamic parameters showed that hydrogen bonds and van der Waals forces played an important role in the stabilization of BIALP-polyamine complexes.
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Affiliation(s)
- Pegah Salehian
- Department of Biology, Faculty of Science, University of Shahrekord, PO Box 115, Shahrekord, Iran
| | - Behzad Shareghi
- Department of Biology, Faculty of Science, University of Shahrekord, PO Box 115, Shahrekord, Iran.
| | - Mansoore Hosseini-Koupaei
- Department of Biology, Faculty of Science, University of Shahrekord, PO Box 115, Shahrekord, Iran.,Department of Biology, Naghshe Jahan Institute of Higher Education, Isfahan, Iran
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Chen B, Wang Y, Yang G. The promotion and suppression of DNA charge neutralization by the cosolute ectoine. RSC Adv 2019; 9:41050-41057. [PMID: 35540047 PMCID: PMC9076405 DOI: 10.1039/c9ra09355a] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2019] [Accepted: 11/27/2019] [Indexed: 12/28/2022] Open
Abstract
Ectoine, a cosolute and osmolyte, is used by extremophilic microorganisms to maintain an osmotic equilibrium of cells with their surrounding medium under conditions of extreme salinity or thermal and pressure stresses. It is also considered a protectant of biomolecules such as protein and DNA in cells. In the present study, we investigate its influence on DNA charge neutralization and compaction through dynamic light scattering (DLS), atomic force microscopy (AFM) and single molecular magnetic tweezers (MT). We found that ectoine can promote DNA charge neutralization induced by multivalent cations at mild cosolute concentration in solution. When the concentration of ectoine is high enough, however, a mixed effect of promotion and suppression can be found under the same ionic conditions. In this case, the electrophoretic mobility (EM) of DNA is promoted in the region of low cation concentration, while suppressed in the region of high counterionic concentration. The charge neutralization of DNA by ectoine is also related to DNA compaction. The promotion and suppression of DNA compaction by ectoine was observed by AFM imaging. The condensed structure of DNA becomes more compact and then loose once more with the increasing concentration of ectoine. Meanwhile, the condensing forces of DNA measured by magnetic tweezers shows the same trend as does the DNA EM. We explained the experimental findings through the combined effect of two intrinsic features of ectoine, preferential exclusion and enhancement of the dielectric constant of the medium. Ectoine can promote DNA charge neutralization at mild cosolute concentration in solution. When the concentration of ectoine is high enough, however, a mixing effect of promotion and suppression can be found in the same ionic condition.![]()
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Affiliation(s)
- Benteng Chen
- Department of Physics
- Wenzhou University
- Wenzhou
- China
| | - Yanwei Wang
- Department of Physics
- Wenzhou University
- Wenzhou
- China
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28
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McStay N, Reilly AM, Gathergood N, Kellett A. Efficient DNA Condensation by a C3‐Symmetric Codeine Scaffold. Chempluschem 2018; 84:38-42. [DOI: 10.1002/cplu.201800480] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2018] [Revised: 11/12/2018] [Indexed: 12/12/2022]
Affiliation(s)
- Natasha McStay
- School of Chemical Sciencesand National Institute for Cellular BiotechnologyDublin City University Glasnevin Dublin 9 Ireland
| | - Anthony M. Reilly
- School of Chemical SciencesDublin City University Glasnevin Dublin 9 Ireland
- Synthesis and Solid-State Pharmaceutical CentreSchool of Chemical SciencesDublin City University Glasnevin Dublin 9 Ireland
| | - Nicholas Gathergood
- Department of Chemistry and BiotechnologyTallinn University of Technology Akadeemia tee 15 12618 Tallinn Estonia
| | - Andrew Kellett
- School of Chemical Sciencesand National Institute for Cellular BiotechnologyDublin City University Glasnevin Dublin 9 Ireland
- Synthesis and Solid-State Pharmaceutical CentreSchool of Chemical SciencesDublin City University Glasnevin Dublin 9 Ireland
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Interactions Between Spermine-Derivatized Tentacle Porphyrins and The Human Telomeric DNA G-Quadruplex. Int J Mol Sci 2018; 19:ijms19113686. [PMID: 30469358 PMCID: PMC6274827 DOI: 10.3390/ijms19113686] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2018] [Revised: 11/14/2018] [Accepted: 11/17/2018] [Indexed: 01/31/2023] Open
Abstract
G-rich DNA sequences have the potential to fold into non-canonical G-Quadruplex (GQ) structures implicated in aging and human diseases, notably cancers. Because stabilization of GQs at telomeres and oncogene promoters may prevent cancer, there is an interest in developing small molecules that selectively target GQs. Herein, we investigate the interactions of meso-tetrakis-(4-carboxysperminephenyl)porphyrin (TCPPSpm4) and its Zn(II) derivative (ZnTCPPSpm4) with human telomeric DNA (Tel22) via UV-Vis, circular dichroism (CD), and fluorescence spectroscopies, resonance light scattering (RLS), and fluorescence resonance energy transfer (FRET) assays. UV-Vis titrations reveal binding constants of 4.7 × 106 and 1.4 × 107 M−1 and binding stoichiometry of 2–4:1 and 10–12:1 for TCPPSpm4 and ZnTCPPSpm4, respectively. High stoichiometry is supported by the Job plot data, CD titrations, and RLS data. FRET melting indicates that TCPPSpm4 stabilizes Tel22 by 36 ± 2 °C at 7.5 eq., and that ZnTCPPSpm4 stabilizes Tel22 by 33 ± 2 °C at ~20 eq.; at least 8 eq. of ZnTCPPSpm4 are required to achieve significant stabilization of Tel22, in agreement with its high binding stoichiometry. FRET competition studies show that both porphyrins are mildly selective for human telomeric GQ vs duplex DNA. Spectroscopic studies, combined, point to end-stacking and porphyrin self-association as major binding modes. This work advances our understanding of ligand interactions with GQ DNA.
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31
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Gulshan MA, Tsuji K, Matsumura S, Higuchi T, Umezawa N, Ikawa Y. Distinct modulation of group I ribozyme activity among stereoisomers of a synthetic pentamine with structural constraints. Biochem Biophys Res Commun 2018; 504:698-703. [PMID: 30213632 DOI: 10.1016/j.bbrc.2018.09.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2018] [Accepted: 09/03/2018] [Indexed: 11/25/2022]
Abstract
Among cationic molecules that can modulate ribozyme activities, polyamines act as both activator and inhibitor of ribozyme reactions partly due to their structural flexibility. Restriction of structural flexibility of polyamines may allow them to emphasize particular modulation effects. We examined eight stereoisomers of a synthetic pentamine bearing three cyclopentane rings. In the reaction of a structurally unstable group I ribozyme, three stereoisomers exhibited distinct effects as inhibitor, an additive with a neutral effect, and also as an activator.
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Affiliation(s)
- Mst Ara Gulshan
- Department of Chemistry, Graduate School of Science and Engineering, University of Toyama, Gofuku 3190, Toyama, 930-8555, Japan; Graduate School of Innovative Life Science, University of Toyama, Gofuku 3190, Toyama, 930-8555, Japan
| | - Kasumi Tsuji
- Graduate School of Pharmaceutical Sciences, Nagoya City University, Nagoya, 467-8603, Japan
| | - Shigeyoshi Matsumura
- Department of Chemistry, Graduate School of Science and Engineering, University of Toyama, Gofuku 3190, Toyama, 930-8555, Japan; Graduate School of Innovative Life Science, University of Toyama, Gofuku 3190, Toyama, 930-8555, Japan
| | - Tsunehiko Higuchi
- Graduate School of Pharmaceutical Sciences, Nagoya City University, Nagoya, 467-8603, Japan
| | - Naoki Umezawa
- Graduate School of Pharmaceutical Sciences, Nagoya City University, Nagoya, 467-8603, Japan
| | - Yoshiya Ikawa
- Department of Chemistry, Graduate School of Science and Engineering, University of Toyama, Gofuku 3190, Toyama, 930-8555, Japan; Graduate School of Innovative Life Science, University of Toyama, Gofuku 3190, Toyama, 930-8555, Japan.
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32
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Fernández-Reina A, Urdiales JL, Sánchez-Jiménez F. What We Know and What We Need to Know about Aromatic and Cationic Biogenic Amines in the Gastrointestinal Tract. Foods 2018; 7:E145. [PMID: 30181486 PMCID: PMC6164962 DOI: 10.3390/foods7090145] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2018] [Revised: 08/22/2018] [Accepted: 08/29/2018] [Indexed: 12/15/2022] Open
Abstract
Biogenic amines derived from basic and aromatic amino acids (B/A-BAs), polyamines, histamine, serotonin, and catecholamines are a group of molecules playing essential roles in many relevant physiological processes, including cell proliferation, immune response, nutrition and reproduction. All these physiological effects involve a variety of tissue-specific cellular receptors and signalling pathways, which conforms to a very complex network that is not yet well-characterized. Strong evidence has proved the importance of this group of molecules in the gastrointestinal context, also playing roles in several pathologies. This work is based on the hypothesis that integration of biomedical information helps to reach new translational actions. Thus, the major aim of this work is to combine scientific knowledge on biomolecules, metabolism and physiology of the main B/A-BAs involved in the pathophysiology of the gastrointestinal tract, in order to point out important gaps in information and other facts deserving further research efforts in order to connect molecular information with pathophysiological observations.
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Affiliation(s)
- Alberto Fernández-Reina
- Departamento de Biología Molecular y Bioquímica, Facultad de Ciencias, Universidad de Málaga, 29071 Málaga, Spain.
| | - José Luis Urdiales
- Departamento de Biología Molecular y Bioquímica, Facultad de Ciencias, Universidad de Málaga, 29071 Málaga, Spain.
- CIBER de Enfermedades Raras & IBIMA, Instituto de Salud Carlos III, 29010 Málaga, Spain.
| | - Francisca Sánchez-Jiménez
- Departamento de Biología Molecular y Bioquímica, Facultad de Ciencias, Universidad de Málaga, 29071 Málaga, Spain.
- CIBER de Enfermedades Raras & IBIMA, Instituto de Salud Carlos III, 29010 Málaga, Spain.
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Wang L, Liu Y, Qi C, Shen L, Wang J, Liu X, Zhang N, Bing T, Shangguan D. Oxidative degradation of polyamines by serum supplement causes cytotoxicity on cultured cells. Sci Rep 2018; 8:10384. [PMID: 29991686 PMCID: PMC6039494 DOI: 10.1038/s41598-018-28648-8] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2018] [Accepted: 05/10/2018] [Indexed: 12/26/2022] Open
Abstract
Serum is a common supplement for cell culture due to it containing the essential active components for the growth and maintenance of cells. However, the knowledges of the active components in serum are incomplete. Apart from the direct influence of serum components on cultured cells, the reaction of serum components with tested drugs cannot be ignored, which usually results in the false conclusion on the activity of the tested drugs. Here we report the toxicity effect of polyamines (spermidine and spermine) on cultured cells, especially on drug-resistant cancer cell lines, which resulted from the oxidative degradation of polyamines by amine oxidases in serum supplement. Upon adding spermidine or spermine, high concentration of H2O2, an enzyme oxidation product of polyamines, was generated in culture media containing ruminant serum, such as fetal bovine serum (FBS), calf serum, bovine serum, goat serum or horse serum, but not in the media containing human serum. Drug-resistant cancer cell lines showed much higher sensitivity to the oxidation products of polyamines (H2O2 and acrolein) than their wild cell lines, which was due to their low antioxidative capacity.
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Affiliation(s)
- Linlin Wang
- Department Beijing National Laboratory for Molecular Sciences, Key Laboratory of Analytical Chemistry for Living Biosystems, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China.,University of the Chinese Academy of Sciences, Beijing, 100049, China
| | - Ying Liu
- Department Beijing National Laboratory for Molecular Sciences, Key Laboratory of Analytical Chemistry for Living Biosystems, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China.,University of the Chinese Academy of Sciences, Beijing, 100049, China
| | - Cui Qi
- CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing, 100190, China
| | - Luyao Shen
- Department Beijing National Laboratory for Molecular Sciences, Key Laboratory of Analytical Chemistry for Living Biosystems, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China.,University of the Chinese Academy of Sciences, Beijing, 100049, China
| | - Junyan Wang
- Department Beijing National Laboratory for Molecular Sciences, Key Laboratory of Analytical Chemistry for Living Biosystems, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China.,University of the Chinese Academy of Sciences, Beijing, 100049, China
| | - Xiangjun Liu
- Department Beijing National Laboratory for Molecular Sciences, Key Laboratory of Analytical Chemistry for Living Biosystems, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China.,University of the Chinese Academy of Sciences, Beijing, 100049, China
| | - Nan Zhang
- Department Beijing National Laboratory for Molecular Sciences, Key Laboratory of Analytical Chemistry for Living Biosystems, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China. .,University of the Chinese Academy of Sciences, Beijing, 100049, China.
| | - Tao Bing
- Department Beijing National Laboratory for Molecular Sciences, Key Laboratory of Analytical Chemistry for Living Biosystems, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China.,University of the Chinese Academy of Sciences, Beijing, 100049, China
| | - Dihua Shangguan
- Department Beijing National Laboratory for Molecular Sciences, Key Laboratory of Analytical Chemistry for Living Biosystems, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China. .,University of the Chinese Academy of Sciences, Beijing, 100049, China.
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Modular Synthesis of Bioreducible Gene Vectors through Polyaddition of N, N'-Dimethylcystamine and Diglycidyl Ethers. Polymers (Basel) 2018; 10:polym10060687. [PMID: 30966721 PMCID: PMC6404356 DOI: 10.3390/polym10060687] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2018] [Revised: 06/13/2018] [Accepted: 06/16/2018] [Indexed: 02/01/2023] Open
Abstract
Bioreducible, cationic linear poly(amino ether)s (PAEs) were designed as promising gene vectors. These polymers were synthesized by the reaction of a disulfide-functional monomer, N,N'-dimethylcystamine (DMC), and several different diglycidyl ethers. The resulting PAEs displayed a substantial buffer capacity (up to 64%) in the endosomal acidification region of pH 7.4⁻5.1. The PAEs condense plasmid DNA into 80⁻200 nm sized polyplexes, and have surface charges ranging from +20 to +40 mV. The polyplexes readily release DNA upon exposure to reducing conditions (2.5 mM DTT) due to the cleavage of the disulfide groups that is present in the main chain of the polymers, as was demonstrated by agarose gel electrophoresis. Upon exposing COS-7 cells to polyplexes that were prepared at polymer/DNA w/w ratios below 48, cell viabilities between 80⁻100% were observed, even under serum-free conditions. These polyplexes show comparable or higher transfection efficiencies (up to 38%) compared to 25 kDa branched polyethylenimine (PEI) polyplexes (12% under serum-free conditions). Moreover, the PAE-based polyplexes yield transfection efficiencies as high as 32% in serum-containing medium, which makes these polymers interesting for gene delivery applications.
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Dong H, Wen ZF, Chen L, Zhou N, Liu H, Dong S, Hu HM, Mou Y. Polyethyleneimine modification of aluminum hydroxide nanoparticle enhances antigen transportation and cross-presentation of dendritic cells. Int J Nanomedicine 2018; 13:3353-3365. [PMID: 29922056 PMCID: PMC5995426 DOI: 10.2147/ijn.s164097] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
Background The aim of this study was to explore the feasibility of delivering tumor antigens and enhancing the antigen cross-presentation of dendritic cells (DCs) by aluminum hydroxide nanoparticle with polyethyleneimine (PEI) modification (LV@HPA/PEI). Materials and methods The LV@HPA nanoparticles were modified by PEI first, then the influence of LV@HPA/PEI on DCs was examined. The distinct expression of ovalbumin (OVA) protein transported into DCs by LV@HPA/PEI was observed by flow cytometry and Western blot. The biocompatibility of LV@HPA/PEI, maturity and antigen cross-presentation of DCs was observed in vitro. Tumor derived autophagosomes (DRibbles) combined with LV@HPA/PEI were loaded into DCs, and DC vaccines were used to immunize mice. The percentage of CD3+CD8+IFN-γ+ T cells in immunized mice was determined by flow cytometry. Additionally, the functional properties of the LV@HPA/PEI-DRibble-DCs vaccine were examined in vivo in PancO2 tumor-bearing mice. Results In our study, we described how LV@HPA/PEI can be a functionalized antigen delivery system with notable antigen transport effect and negligible cytotoxicity. It was found that LV@HPA/PEI could be easily internalized into DCs to assist antigen release into the cytoplasm. In addition, DCs matured gradually after loading with LV@HPA/PEI-OVA, which increased significantly the cytokine IL-12 secretion and expression of surface molecules CD80 and CD86. Interestingly, DCs loaded with LV@HPA/PEI-DRibbles could promote the activation of tumor-specific T cells both in murine and in human T cells. In the following in vivo experiments, the vaccine of LV@HPA/PEI-DRibble-DCs significantly inhibited tumor growth and improved the survival rate of the PancO2 tumor-bearing mice. Conclusion We established a high-performance anti-tumor vaccine of DCs loaded with LV@ HPA/PEI nanoparticles and tumor-associated antigens in autophagosomes (DRibbles), which could serve as a therapeutic strategy in cancer immunotherapy.
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Affiliation(s)
- Heng Dong
- Central Laboratory, Nanjing Stomatological Hospital, Medical School of Nanjing University, Nanjing, China.,Laboratory of Cancer Immunobiology, Robert W Franz Cancer Research Center, Earle A Chiles Research Institute, Providence Cancer Center, Portland, OR, USA
| | - Zhi-Fa Wen
- Laboratory of Cancer Immunobiology, Robert W Franz Cancer Research Center, Earle A Chiles Research Institute, Providence Cancer Center, Portland, OR, USA.,Department of Microbiology and Immunology, Medical School of Southeast University, Nanjing, China
| | - Lin Chen
- Central Laboratory, Nanjing Stomatological Hospital, Medical School of Nanjing University, Nanjing, China
| | - Na Zhou
- Central Laboratory, Nanjing Stomatological Hospital, Medical School of Nanjing University, Nanjing, China
| | - Hui Liu
- Central Laboratory, Nanjing Stomatological Hospital, Medical School of Nanjing University, Nanjing, China
| | - Shiling Dong
- Central Laboratory, Nanjing Stomatological Hospital, Medical School of Nanjing University, Nanjing, China
| | - Hong-Ming Hu
- Laboratory of Cancer Immunobiology, Robert W Franz Cancer Research Center, Earle A Chiles Research Institute, Providence Cancer Center, Portland, OR, USA
| | - Yongbin Mou
- Central Laboratory, Nanjing Stomatological Hospital, Medical School of Nanjing University, Nanjing, China
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Publio B, Moura T, Lima C, Rocha M. Biophysical characterization of the DNA interaction with the biogenic polyamine putrescine: A single molecule study. Int J Biol Macromol 2018; 112:175-178. [DOI: 10.1016/j.ijbiomac.2018.01.142] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2017] [Revised: 01/19/2018] [Accepted: 01/20/2018] [Indexed: 02/07/2023]
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Luo Z, Wang Y, Li S, Yang G. DNA Phase Transition in Charge Neutralization and Comformation Induced by Trivalent-Hydrolysed Metal Ions. Polymers (Basel) 2018; 10:E394. [PMID: 30966429 PMCID: PMC6415217 DOI: 10.3390/polym10040394] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2018] [Revised: 03/10/2018] [Accepted: 03/29/2018] [Indexed: 01/26/2023] Open
Abstract
It is well known that common trivalent counter ions can induce DNA compaction or condensation but are unable to invert DNA surface charge in a normal aqueous solution. In the present study, we found that trivalent-hydrolysed metal ions (Fe3+, Al3+) are not only capable of inducing DNA condensation, but they also invert the electrophoretic mobility of DNA by electrophoretic light scattering and single molecular techniques. In comparison with neutral trivalent cations, hydrolysed metal ions such as Fe3+ can induce DNA condensation at a much lower concentration of cations, and its corresponding morphology of condensed DNA was directly observed by atomic force microscopy (AFM). The condensing and unravelling forces of DNA condensates were measured by tethering DNA by magnetic tweezers (MT) measurements at various concentration of Fe3+ and Al3+. We found that a coil⁻globule transition of DNA by hydrolysed metal ions not only was observed in DNA-complex sizes, but also in the curve of electrophoretic mobility of DNA in solution. In contrast, the transition was not observed in the case of neutral trivalent cations such as La3+ and Co3+. We attribute the transition and charge inversion to the ion-specific interaction between hydrolysed metal ions and phosphates of DNA backbone.
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Affiliation(s)
- Zhaoxu Luo
- College of Mathematical, Physics and Electronic Information Engineering, Wenzhou University, Wenzhou 325035, China.
| | - Yanwei Wang
- College of Mathematical, Physics and Electronic Information Engineering, Wenzhou University, Wenzhou 325035, China.
| | - Shuhang Li
- College of Mathematical, Physics and Electronic Information Engineering, Wenzhou University, Wenzhou 325035, China.
| | - Guangcan Yang
- College of Mathematical, Physics and Electronic Information Engineering, Wenzhou University, Wenzhou 325035, China.
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Cellular and Animal Model Studies on the Growth Inhibitory Effects of Polyamine Analogues on Breast Cancer. Med Sci (Basel) 2018. [PMID: 29533973 PMCID: PMC5872181 DOI: 10.3390/medsci6010024] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Polyamine levels are elevated in breast tumors compared to those of adjacent normal tissues. The female sex hormone, estrogen is implicated in the origin and progression of breast cancer. Estrogens stimulate and antiestrogens suppress the expression of polyamine biosynthetic enzyme, ornithine decarboxylate (ODC). Using several bis(ethyl)spermine analogues, we found that these analogues inhibited the proliferation of estrogen receptor-positive and estrogen receptor negative breast cancer cells in culture. There was structure-activity relationship in the efficacy of these compounds in suppressing cell growth. The activity of ODC was inhibited by these compounds, whereas the activity of the catabolizing enzyme, spermidine/spermine N¹-acetyl transferase (SSAT) was increased by 6-fold by bis(ethyl)norspermine in MCF-7 cells. In a transgenic mouse model of breast cancer, bis(ethyl)norspermine reduced the formation and growth of spontaneous mammary tumor. Recent studies indicate that induction of polyamine catabolic enzymes SSAT and spermine oxidase (SMO) play key roles in the anti-proliferative and apoptotic effects of polyamine analogues and their combinations with chemotherapeutic agents such as 5-fluorouracil (5-FU) and paclitaxel. Thus, polyamine catabolic enzymes might be important therapeutic targets and markers of sensitivity in utilizing polyamine analogues in combination with other therapeutic agents.
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Wang Y, Wang R, Gao T, Yang G. The Mixing Counterion Effect on DNA Compaction and Charge Neutralization at Low Ionic Strength. Polymers (Basel) 2018; 10:E244. [PMID: 30966279 PMCID: PMC6415083 DOI: 10.3390/polym10030244] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2017] [Revised: 02/24/2018] [Accepted: 02/26/2018] [Indexed: 12/18/2022] Open
Abstract
DNA compaction and charge neutralization in a mixing counterion solution involves competitive and cooperative electrostatic binding, and sometimes counterion complexation. At normal ionic strength, it has been found that the charge neutralization of DNA by the multivalent counterion is suppressed when being added extra mono- and di-valent counterions. Here, we explore the effect mixing counterion on DNA compaction and charge neutralization under the condition of low ionic strength. Being quite different from normal ionic strength, the electrophoretic mobility of DNA in multivalent counterion solution (octalysine, spermine) increases the presence of mono- and di-valent cations, such as sodium and magnesium ions. It means that the charge neutralization of DNA by the multivalent counterion is promoted rather than suppressed when introducing extra mono- and di-valent counterions into solution. This conclusion is also supported by the measurement of condensing and unraveling forces of DNA condensates under the same condition by single molecular magnetic tweezers. This mixing effect can be attributed to the cooperative electrostatic binding of counterions to DNA when the concentration of counterions in solution is below a critical concentration.
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Affiliation(s)
- Yanwei Wang
- College of Mathematical, Physics and Electronic Information Engineering, Wenzhou University, Wenzhou 325035, China.
| | - Ruxia Wang
- College of Mathematical, Physics and Electronic Information Engineering, Wenzhou University, Wenzhou 325035, China.
| | - Tianyong Gao
- College of Mathematical, Physics and Electronic Information Engineering, Wenzhou University, Wenzhou 325035, China.
| | - Guangcan Yang
- College of Mathematical, Physics and Electronic Information Engineering, Wenzhou University, Wenzhou 325035, China.
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Rezaee M, Gholami L, Gildeh MS, Ramezani M, Kazemi Oskuee R. Charge reduction: an efficient strategy to reduce toxicity and increase the transfection efficiency of high molecular weight polyethylenimine. JOURNAL OF PHARMACEUTICAL INVESTIGATION 2018. [DOI: 10.1007/s40005-018-0388-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Yang G, Wang Y. Dynamic Light Scattering of DNA-Ligand Complexes. Methods Mol Biol 2018; 1837:161-176. [PMID: 30109611 DOI: 10.1007/978-1-4939-8675-0_10] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Dynamic Light Scattering ( DLS ) enables the characterization of sizes and electrokinetic properties of colloids, polymers, macromolecules. DNA is a charged semiflexible polyelectrolyte, which is condensed or compacted by counterions, proteins, and other condensing agents in processes such as chromosome compaction and gene therapeutic applications. DNA condensation is closely related to charge screening, since packaging requires effective neutralization of its surface negative charges. In this chapter, we describe in detail the protocol for DLS of DNA-ligand complexes. As an example, we describe data for condensation of DNA by chitosan and the measurement of size, zeta potential, and electrophoretic mobility of the DNA-ligand complex by DLS.
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Affiliation(s)
- Guangcan Yang
- Department of Physics, Wenzhou University, Wenzhou, China.
| | - Yanwei Wang
- Department of Physics, Wenzhou University, Wenzhou, China
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Regulation of Polyamine Metabolism by Curcumin for Cancer Prevention and Therapy. Med Sci (Basel) 2017; 5:medsci5040038. [PMID: 29258259 PMCID: PMC5753667 DOI: 10.3390/medsci5040038] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2017] [Revised: 12/12/2017] [Accepted: 12/14/2017] [Indexed: 12/31/2022] Open
Abstract
Curcumin (diferuloylmethane), the natural polyphenol responsible for the characteristic yellow pigment of the spice turmeric (Curcuma longa), is traditionally known for its antioxidant, anti-inflammatory, and anticarcinogenic properties. Capable of affecting the initiation, promotion, and progression of carcinogenesis through multiple mechanisms, curcumin has potential utility for both chemoprevention and chemotherapy. In human cancer cell lines, curcumin has been shown to decrease ornithine decarboxylase (ODC) activity, a rate-limiting enzyme in polyamine biosynthesis that is frequently upregulated in cancer and other rapidly proliferating tissues. Numerous studies have demonstrated that pretreatment with curcumin can abrogate carcinogen-induced ODC activity and tumor development in rodent tumorigenesis models targeting various organs. This review summarizes the results of curcumin exposure with regard to the modulation of polyamine metabolism and discusses the potential utility of this natural compound in conjunction with the exploitation of dysregulated polyamine metabolism in chemopreventive and chemotherapeutic settings.
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Collapse of DNA in packaging and cellular transport. Int J Biol Macromol 2017; 109:36-48. [PMID: 29247730 DOI: 10.1016/j.ijbiomac.2017.12.076] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2017] [Revised: 12/11/2017] [Accepted: 12/12/2017] [Indexed: 01/02/2023]
Abstract
The dawn of molecular biology and recombinant DNA technology arose from our ability to manipulate DNA, including the process of collapse of long extended DNA molecules into nanoparticles of approximately 100 nm diameter. This condensation process is important for the packaging of DNA in the cell and for transporting DNA through the cell membrane for gene therapy. Multivalent cations, such as natural polyamines (spermidine and spermine), were initially recognized for their ability to provoke DNA condensation. Current research is targeted on molecules such as linear and branched polymers, oligopeptides, polypeptides and dendrimers that promote collapse of DNA to nanometric particles for gene therapy and on the energetics of DNA packaging.
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Farshbaf M, Davaran S, Zarebkohan A, Annabi N, Akbarzadeh A, Salehi R. Significant role of cationic polymers in drug delivery systems. ARTIFICIAL CELLS NANOMEDICINE AND BIOTECHNOLOGY 2017; 46:1872-1891. [PMID: 29103306 DOI: 10.1080/21691401.2017.1395344] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Cationic polymers are characterized as the macromolecules that possess positive charges, which can be either inherently in the polymer side chains and/or its backbone. Based on their origins, cationic polymers are divided in two category including natural and synthetic, in which the possessed positive charges are as result of primary, secondary or tertiary amine functional groups that could be protonated in particular situations. Cationic polymers have been employed commonly as drug delivery agents due to their superior encapsulation efficacy, enhanced bioavailability, low toxicity and improved release profile. In this paper, we focus on the most prominent examples of cationic polymers which have been revealed to be applicable in drug delivery systems and we also discuss their general synthesis and surface modification methods as well as their controlled release profile in drug delivery.
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Affiliation(s)
- Masoud Farshbaf
- a Department of Medical Nanotechnology, Faculty of Advanced Medical Science , Tabriz University of Medical Science , Tabriz , Iran
| | - Soodabeh Davaran
- b Research Centre for Pharmaceutical Nanotechnology , Tabriz University of Medical Science , Tabriz , Iran
| | - Amir Zarebkohan
- a Department of Medical Nanotechnology, Faculty of Advanced Medical Science , Tabriz University of Medical Science , Tabriz , Iran
| | - Nasim Annabi
- c Biomaterials Innovation Research Centre , Brigham and Women's Hospital, Harvard Medical School , Cambridge , MA , USA.,d Harvard-MIT Division of Health Sciences and Technology , Massachusetts Institute of Technology , Cambridge , MA , USA.,e Department of Chemical Engineering , Northeastern University , Boston , MA , USA
| | - Abolfazl Akbarzadeh
- a Department of Medical Nanotechnology, Faculty of Advanced Medical Science , Tabriz University of Medical Science , Tabriz , Iran
| | - Roya Salehi
- f Drug Applied Research Centre and Department of Medical Nanotechnology, Faculty of Advanced Medical Science , Tabriz University of Medical Science , Tabriz , Iran
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Nanocomposite biomimetic vesicles based on interfacial complexes of polyelectrolytes and colloid magnetic nanoparticles. Colloids Surf A Physicochem Eng Asp 2017. [DOI: 10.1016/j.colsurfa.2017.07.035] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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Novel xanthone-polyamine conjugates as catalytic inhibitors of human topoisomerase IIα. Bioorg Med Chem Lett 2017; 27:4687-4693. [PMID: 28919339 DOI: 10.1016/j.bmcl.2017.09.011] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2017] [Revised: 08/31/2017] [Accepted: 09/04/2017] [Indexed: 01/03/2023]
Abstract
It has been proposed that xanthone derivatives with anticancer potential act as topoisomerase II inhibitors because they interfere with the ability of the enzyme to bind its ATP cofactor. In order to further characterize xanthone mechanism and generate compounds with potential as anticancer drugs, we synthesized a series of derivatives in which position 3 was substituted with different polyamine chains. As determined by DNA relaxation and decatenation assays, the resulting compounds are potent topoisomerase IIα inhibitors. Although xanthone derivatives inhibit topoisomerase IIα-catalyzed ATP hydrolysis, mechanistic studies indicate that they do not act at the ATPase site. Rather, they appear to function by blocking the ability of DNA to stimulate ATP hydrolysis. On the basis of activity, competition, and modeling studies, we propose that xanthones interact with the DNA cleavage/ligation active site of topoisomerase IIα and inhibit the catalytic activity of the enzyme by interfering with the DNA strand passage step.
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Muramatsu A, Shimizu Y, Yoshikawa Y, Fukuda W, Umezawa N, Horai Y, Higuchi T, Fujiwara S, Imanaka T, Yoshikawa K. Naturally occurring branched-chain polyamines induce a crosslinked meshwork structure in a giant DNA. J Chem Phys 2017; 145:235103. [PMID: 28010109 DOI: 10.1063/1.4972066] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
We studied the effect of branched-chain polyamines on the folding transition of genome-sized DNA molecules in aqueous solution by the use of single-molecule observation with fluorescence microcopy. Detailed morphological features of polyamine/DNA complexes were characterized by atomic force microscopy (AFM). The AFM observations indicated that branched-chain polyamines tend to induce a characteristic change in the higher-order structure of DNA by forming bridges or crosslinks between the segments of a DNA molecule. In contrast, natural linear-chain polyamines cause a parallel alignment between DNA segments. Circular dichroism measurements revealed that branched-chain polyamines induce the A-form in the secondary structure of DNA, while linear-chain polyamines have only a minimum effect. This large difference in the effects of branched- and linear-chain polyamines is discussed in relation to the difference in the manner of binding of these polyamines to negatively charged double-stranded DNA.
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Affiliation(s)
- Akira Muramatsu
- Faculty of Life and Medical Sciences, Doshisha University, Kyotanabe 610-0394, Japan
| | - Yuta Shimizu
- Faculty of Life and Medical Sciences, Doshisha University, Kyotanabe 610-0394, Japan
| | - Yuko Yoshikawa
- Faculty of Life and Medical Sciences, Doshisha University, Kyotanabe 610-0394, Japan
| | - Wakao Fukuda
- College of Life Sciences, Ritsumeikan University, Kusatsu 525-8577, Japan
| | - Naoki Umezawa
- Graduate School of Pharmaceutical Sciences, Nagoya City University, Nagoya 467-8603, Japan
| | - Yuhei Horai
- Graduate School of Pharmaceutical Sciences, Nagoya City University, Nagoya 467-8603, Japan
| | - Tsunehiko Higuchi
- Graduate School of Pharmaceutical Sciences, Nagoya City University, Nagoya 467-8603, Japan
| | - Shinsuke Fujiwara
- School of Science and Technology, Kwansei-Gakuin University, Sanda 669-1337, Japan
| | - Tadayuki Imanaka
- College of Life Sciences, Ritsumeikan University, Kusatsu 525-8577, Japan
| | - Kenichi Yoshikawa
- Faculty of Life and Medical Sciences, Doshisha University, Kyotanabe 610-0394, Japan
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Zhan Z, Zhang X, Huang J, Huang Y, Huang Z, Pan X, Quan G, Liu H, Wang L, Wu AC. Improved Gene Transfer with Functionalized Hollow Mesoporous Silica Nanoparticles of Reduced Cytotoxicity. MATERIALS 2017; 10:ma10070731. [PMID: 28773087 PMCID: PMC5551774 DOI: 10.3390/ma10070731] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/29/2017] [Revised: 06/01/2017] [Accepted: 06/02/2017] [Indexed: 01/27/2023]
Abstract
Gene therapy is a promising strategy for treatment of genetically caused diseases. Successful gene delivery requires an efficient carrier to transfer the desired gene into host cells. Recently, mesoporous silica nanoparticles (MSNs) functionalized with 25 kD polyethyleneimine (PEI) were extensively used as gene delivery carriers. However, 25 kD PEI could significantly reduce the safety of the modified MSNs although it is efficient for intracellular delivery of nucleic acids. In addition, limited drug loading remains a challenge for conventional MSNs drug carriers. Hollow mesoporous silica nanoparticles (HMSNs) with high pore volume, tunable pore size, and excellent biocompatibility are attractive alternatives. To make them more efficient, a less toxic 1.8 kD PEI polymer was used to functionalize the HMSNs which have large pore size (~10 nm) and form PEI-HMSNs. Scanning and transmission electron microscopic images showed that HMSNs were spherical in shape and approximately 270 nm in diameter with uniform hollow nanostructures. The maximum loading capacity of green fluorescent protein labeled DNA (GFP-DNA) in PEI-HMSNs was found to be 37.98 mg/g. The loading capacity of PEI-HMSNs was nearly three-fold higher than those of PEI modified solid nanoparticles, indicating that both hollow and large pores contributed to the increase in DNA adsorption. The transfection of GFP-DNA plasmid loaded in PEI-HMSNs was increased two-fold in comparison to that of 25 kD PEI. MTT assays in Lovo cells showed that the cell viability was more than 85% when the concentration of PEI-HMSNs was 120 µg/mL, whereas the cell viability was less than 20% when the 25 kD PEI was used at the same concentration. These results indicated that PEI-HMSNs could be used as a delivery system for nucleic acids due to good biocompatibility, high gene loading capacity, and enhanced gene transfer efficiency.
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Affiliation(s)
- Zhengwen Zhan
- School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou 510006, China.
| | - Xiaoxu Zhang
- School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou 510006, China.
| | - Jiayuan Huang
- School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou 510006, China.
| | - Ying Huang
- School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou 510006, China.
| | - Zhengwei Huang
- School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou 510006, China.
| | - Xin Pan
- School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou 510006, China.
- Zhongshan WanYuan New Drug R&D Co., Ltd., Zhongshan 528451, China.
| | - Guilan Quan
- School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou 510006, China.
| | - Hu Liu
- School of Pharmacy, Memorial University of Newfoundland, Newfoundland and Labrador, St. John's, NL A1B 3V6, Canada.
| | - Lili Wang
- School of Pharmacy, Memorial University of Newfoundland, Newfoundland and Labrador, St. John's, NL A1B 3V6, Canada.
| | - And Chuanbin Wu
- School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou 510006, China.
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Murray-Stewart T, Ferrari E, Xie Y, Yu F, Marton LJ, Oupicky D, Casero RA. Biochemical evaluation of the anticancer potential of the polyamine-based nanocarrier Nano11047. PLoS One 2017; 12:e0175917. [PMID: 28423064 PMCID: PMC5396973 DOI: 10.1371/journal.pone.0175917] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2017] [Accepted: 04/03/2017] [Indexed: 12/15/2022] Open
Abstract
Synthesizing polycationic polymers directly from existing drugs overcomes the drug-loading limitations often associated with pharmacologically inert nanocarriers. We recently described nanocarriers formed from a first-generation polyamine analogue, bis(ethyl)norspermine (BENSpm), that could simultaneously target polyamine metabolism while delivering therapeutic nucleic acids. In the current study, we describe the synthesis and evaluation of self-immolative nanocarriers derived from the second-generation polyamine analogue PG-11047. Polyamines are absolutely essential for proliferation and their metabolism is frequently dysregulated in cancer. Through its effects on polyamine metabolism, PG-11047 effectively inhibits tumor growth in cancer cell lines of multiple origins as well as in human tumor mouse xenografts. Promising clinical trials have been completed verifying the safety and tolerance of this rotationally restricted polyamine analogue. We therefore used PG-11047 as the basis for Nano11047, a biodegradable, prodrug nanocarrier capable of targeting polyamine metabolism. Following exposure of lung cancer cell lines to Nano11047, uptake and intracellular degradation into the parent compound PG-11047 was observed. The release of PG-11047 highly induced the polyamine catabolic enzyme activities of spermidine/spermine N1-acetyltransferase (SSAT) and spermine oxidase (SMOX). By contrast, the activity of ornithine decarboxylase (ODC), a rate-limiting enzyme in polyamine biosynthesis and a putative oncogene, was decreased. Consequently, intracellular levels of the natural polyamines were depleted concurrent with tumor cell growth inhibition. This availability of Nano11047 as a novel drug form and potential nucleic acid delivery vector will potentially benefit and encourage future clinical studies.
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Affiliation(s)
- Tracy Murray-Stewart
- The Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins University, Baltimore, Maryland, United States of America
| | - Elena Ferrari
- Center for Drug Delivery and Nanomedicine, Department of Pharmaceutical Sciences, University of Nebraska Medical Center, Omaha, Nebraska, United States of America
| | - Ying Xie
- Center for Drug Delivery and Nanomedicine, Department of Pharmaceutical Sciences, University of Nebraska Medical Center, Omaha, Nebraska, United States of America
| | - Fei Yu
- Center for Drug Delivery and Nanomedicine, Department of Pharmaceutical Sciences, University of Nebraska Medical Center, Omaha, Nebraska, United States of America
| | - Laurence J. Marton
- Department of Laboratory Medicine, University of California, San Francisco, California, United States of America
| | - David Oupicky
- Center for Drug Delivery and Nanomedicine, Department of Pharmaceutical Sciences, University of Nebraska Medical Center, Omaha, Nebraska, United States of America
| | - Robert A. Casero
- The Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins University, Baltimore, Maryland, United States of America
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Liu Q, Su RC, Yi WJ, Zhao ZG. Biodegradable Poly(Amino Ester) with Aromatic Backbone as Efficient Nonviral Gene Delivery Vectors. Molecules 2017; 22:E566. [PMID: 28362336 PMCID: PMC6154102 DOI: 10.3390/molecules22040566] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2017] [Revised: 03/25/2017] [Accepted: 03/28/2017] [Indexed: 11/16/2022] Open
Abstract
The development of gene delivery vectors with high efficiency and biocompatibility is one of the critical points of gene therapy. Two biodegradable poly(amino ester)s were synthesized via ring-opening polymerization between low molecular weight (LMW) PEI and diepoxide. The molecular weights of poly(amino ester)s were measured by GPC. Agarose gel retardation assays showed that these materials have good DNA-binding ability and can retard the electrophoretic mobility of plasmid DNA (pDNA) at a weight ratio of 1. The formed polyplexes have proper sizes of around 200 nm and zeta-potential values of about 30-40 mV for cellular uptake. In vitro experiments revealed that polymer P2 gave higher transfection efficiency than PEI 25KDa and Lipofectamine 2000 with less toxicity, especially in 293 cells. Results demonstrate that such a type of degradable poly(amino ester) may serve as a promising non-viral gene vector.
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Affiliation(s)
- Qiang Liu
- College of Chemistry and Environmental Protection Engineering, Southwest Minzu University, Chengdu 610041, China.
| | - Rong-Chuan Su
- College of Chemistry and Environmental Protection Engineering, Southwest Minzu University, Chengdu 610041, China.
| | - Wen-Jing Yi
- College of Chemistry and Environmental Protection Engineering, Southwest Minzu University, Chengdu 610041, China.
| | - Zhi-Gang Zhao
- College of Chemistry and Environmental Protection Engineering, Southwest Minzu University, Chengdu 610041, China.
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