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Grodzicka M, Michlewska S, Blasiak J, Ortega P, de la Mata FJ, Bryszewska M, Ionov M. Polyphenolic dendrimers as carriers of anticancer siRNA. Int J Pharm 2024; 658:124199. [PMID: 38703928 DOI: 10.1016/j.ijpharm.2024.124199] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2024] [Revised: 04/18/2024] [Accepted: 05/01/2024] [Indexed: 05/06/2024]
Abstract
Dendrimers have emerged as an important group of nanoparticles to transport drugs, DNA, or RNA into target cells in cancer and other diseases. Various functional modifications can be imposed on dendrimers to increase the efficacy and specificity in delivering their cargo to the target cells and decrease their toxicity. In the present work, we evaluated the potential of carbosilane polyphenolic dendrimers modified with caffeic acid (CA) and polyethylene glycol (PEG) to deliver proapoptotic Mcl-1 and Bcl-2 siRNAs to A549 cancer cells. Dendrimers formed stable complexes with siRNAs as assessed by transmission electron microscopy and gel electrophoresis. Modification of dendrimers with PEG reduced the size and the zeta potential of dendrimer/siRNA complexes. The presence of PEG caused a red shift of the CD spectrum, and this effect was the more pronounced, the higher the dendrimer/siRNA ratio was. The nanocomplexes were internalized by A549. All studied dendrimer/siRNA formulations inhibited tumor cell migration and adhesion and caused an increase in the population of early apoptotic cells. Among four tested dendrimers, the polyphenolic compound containing two caffeic acid moieties complexed with siRNA demonstrated the lowest polydispersity index and showed an excellent transfection profile. In conclusion, this dendrimer are a promising candidate for the delivery of siRNA into cancer cells in further in vivo studies.
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Affiliation(s)
- Marika Grodzicka
- University of Lodz, Faculty of Biology and Environmental Protection, Department of General Biophysics, Pomorska St. 141/143, Lodz 90-236, Poland; The Bio-Med-Chem Doctoral School of the University of Lodz and Lodz Institutes of the Polish Academy of Sciences, Matejki St. 21/23, Lodz 90-237, Poland; University of Lodz, Faculty of Biology and Environmental Protection, Laboratory of Microscopic Imaging and Specialized Biological Techniques, Banacha St. 12/16, Lodz 90-237, Poland
| | - Sylwia Michlewska
- University of Lodz, Faculty of Biology and Environmental Protection, Laboratory of Microscopic Imaging and Specialized Biological Techniques, Banacha St. 12/16, Lodz 90-237, Poland.
| | - Janusz Blasiak
- Mazovian Academy in Plock, Collegium Medicum, Faculty of Medicine, Pl. Dabrowskiego 2, 09-402 Plock, Poland
| | - Paula Ortega
- Universidad de Alcalá. Department of Organic and Inorganic Chemistry, and Research Institute in Chemistry "Andrés M. del Río" (IQAR), Spain, and Instituto Ramon y Cajal de Investigacion Sanitaria, IRYCIS, Colmenar Viejo Road, Km 9, 100, 28034 Madrid, Spain; Networking Research Center on Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Spain
| | - Francisco Javier de la Mata
- Universidad de Alcalá. Department of Organic and Inorganic Chemistry, and Research Institute in Chemistry "Andrés M. del Río" (IQAR), Spain, and Instituto Ramon y Cajal de Investigacion Sanitaria, IRYCIS, Colmenar Viejo Road, Km 9, 100, 28034 Madrid, Spain; Networking Research Center on Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Spain
| | - Maria Bryszewska
- University of Lodz, Faculty of Biology and Environmental Protection, Department of General Biophysics, Pomorska St. 141/143, Lodz 90-236, Poland
| | - Maksim Ionov
- University of Lodz, Faculty of Biology and Environmental Protection, Department of General Biophysics, Pomorska St. 141/143, Lodz 90-236, Poland; Mazovian Academy in Plock, Collegium Medicum, Faculty of Medicine, Pl. Dabrowskiego 2, 09-402 Plock, Poland
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2
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Michlewska S, Wójkowska D, Watala C, Skiba E, Ortega P, de la Mata FJ, Bryszewska M, Ionov M. Ruthenium metallodendrimer against triple-negative breast cancer in mice. NANOMEDICINE : NANOTECHNOLOGY, BIOLOGY, AND MEDICINE 2023; 53:102703. [PMID: 37591367 DOI: 10.1016/j.nano.2023.102703] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Revised: 07/11/2023] [Accepted: 08/05/2023] [Indexed: 08/19/2023]
Abstract
Carbosilane metallodendrimers, based on the arene Ru(II) complex (CRD13) and integrated to imino-pyridine surface groups have been investigated as an anticancer agent in a mouse model with triple-negative breast cancer. The dendrimer entered into the cells efficiently, and exhibited selective toxicity for 4T1 cells. In vivo investigations proved that a local injection of CRD13 caused a reduction of tumour mass and was non-toxic. ICP analyses indicated that Ru(II) accumulated in all tested tissues with a greater content detected in the tumour.
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Affiliation(s)
- Sylwia Michlewska
- Laboratory of Microscopic Imaging and Specialized Biological Techniques, Faculty of Biology and Environmental Protection, University of Lodz, Poland; Department of General Biophysics, Faculty of Biology and Environmental Protection, University of Lodz, Poland.
| | - Dagmara Wójkowska
- Department of Haemostatic Disorders, Faculty of Health Sciences, Medical University of Lodz, Poland
| | - Cezary Watala
- Department of Haemostatic Disorders, Faculty of Health Sciences, Medical University of Lodz, Poland
| | - Elżbieta Skiba
- Institute of General and Ecological Chemistry, Lodz University of Technology, Poland
| | - Paula Ortega
- Universidad de Alcalá, Department of Organic and Inorganic Chemistry, Research Institute in Chemistry "Andrés M. del Río" (IQAR), Madrid, Spain; Instituto de Investigación Sanitaria Ramón y Cajal, IRYCIS, Spain; Networking Research Center on Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Spain
| | - Francisco Javier de la Mata
- Universidad de Alcalá, Department of Organic and Inorganic Chemistry, Research Institute in Chemistry "Andrés M. del Río" (IQAR), Madrid, Spain; Instituto de Investigación Sanitaria Ramón y Cajal, IRYCIS, Spain; Networking Research Center on Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Spain
| | - Maria Bryszewska
- Department of General Biophysics, Faculty of Biology and Environmental Protection, University of Lodz, Poland
| | - Maksim Ionov
- Department of General Biophysics, Faculty of Biology and Environmental Protection, University of Lodz, Poland
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Carballo-Pedrares N, Ponti F, Lopez-Seijas J, Miranda-Balbuena D, Bono N, Candiani G, Rey-Rico A. Non-viral gene delivery to human mesenchymal stem cells: a practical guide towards cell engineering. J Biol Eng 2023; 17:49. [PMID: 37491322 PMCID: PMC10369726 DOI: 10.1186/s13036-023-00363-7] [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: 01/13/2023] [Accepted: 06/27/2023] [Indexed: 07/27/2023] Open
Abstract
In recent decades, human mesenchymal stem cells (hMSCs) have gained momentum in the field of cell therapy for treating cartilage and bone injuries. Despite the tri-lineage multipotency, proliferative properties, and potent immunomodulatory effects of hMSCs, their clinical potential is hindered by donor variations, limiting their use in medical settings. To address this challenge, gene delivery technologies have emerged as a promising approach to modulate the phenotype and commitment of hMSCs towards specific cell lineages, thereby enhancing osteochondral repair strategies. This review provides a comprehensive overview of current non-viral gene delivery approaches used to engineer MSCs, highlighting key factors such as the choice of nucleic acid or delivery vector, transfection strategies, and experimental parameters. Additionally, it outlines various protocols and methods for qualitative and quantitative evaluation of their therapeutic potential as a delivery system in osteochondral regenerative applications. In summary, this technical review offers a practical guide for optimizing non-viral systems in osteochondral regenerative approaches. hMSCs constitute a key target population for gene therapy techniques. Nevertheless, there is a long way to go for their translation into clinical treatments. In this review, we remind the most relevant transfection conditions to be optimized, such as the type of nucleic acid or delivery vector, the transfection strategy, and the experimental parameters to accurately evaluate a delivery system. This survey provides a practical guide to optimizing non-viral systems for osteochondral regenerative approaches.
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Affiliation(s)
- Natalia Carballo-Pedrares
- Gene & Cell Therapy Research Group (G-CEL). Centro Interdisciplinar de Química y Biología - CICA, Universidade da Coruña, As Carballeiras, S/N. Campus de Elviña, 15071 A, Coruña, Spain
| | - Federica Ponti
- genT_LΛB, Department of Chemistry, Materials and Chemical Engineering "G. Natta", Politecnico Di Milano, 20131, Milan, Italy
- Laboratory for Biomaterials and Bioengineering, Canada Research Chair I in Biomaterials and Bioengineering for the Innovation in Surgery, Department of Min-Met-Materials Engineering & Research Center of CHU de Quebec, Division of Regenerative Medicine, Laval University, Quebec City, QC, Canada
| | - Junquera Lopez-Seijas
- Gene & Cell Therapy Research Group (G-CEL). Centro Interdisciplinar de Química y Biología - CICA, Universidade da Coruña, As Carballeiras, S/N. Campus de Elviña, 15071 A, Coruña, Spain
| | - Diego Miranda-Balbuena
- Gene & Cell Therapy Research Group (G-CEL). Centro Interdisciplinar de Química y Biología - CICA, Universidade da Coruña, As Carballeiras, S/N. Campus de Elviña, 15071 A, Coruña, Spain
| | - Nina Bono
- genT_LΛB, Department of Chemistry, Materials and Chemical Engineering "G. Natta", Politecnico Di Milano, 20131, Milan, Italy
| | - Gabriele Candiani
- genT_LΛB, Department of Chemistry, Materials and Chemical Engineering "G. Natta", Politecnico Di Milano, 20131, Milan, Italy.
| | - Ana Rey-Rico
- Gene & Cell Therapy Research Group (G-CEL). Centro Interdisciplinar de Química y Biología - CICA, Universidade da Coruña, As Carballeiras, S/N. Campus de Elviña, 15071 A, Coruña, Spain.
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4
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Terehova M, Dzmitruk V, Abashkin V, Kirakosyan G, Ghukasyan G, Bryszewska M, Pedziwiatr-Werbicka E, Ionov M, Gómez R, de la Mata FJ, Mignani S, Shi X, Majoral JP, Sukhodola A, Shcharbin D. Comparison of the effects of dendrimer, micelle and silver nanoparticles on phospholipase A2 structure. J Biotechnol 2021; 331:48-52. [PMID: 33727080 DOI: 10.1016/j.jbiotec.2021.03.009] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2020] [Revised: 02/02/2021] [Accepted: 03/09/2021] [Indexed: 11/24/2022]
Abstract
The interaction of nanoparticles (NP) with proteins (the so-called 'protein corona') is a huge challenge in attempting to apply them in personalized nanomedicine. We have analyzed the interaction between A) two 'soft' NPs (a cationic phosphorus dendrimer of generation 3; a cationic phosphorus amphiphilic dendron of generation 2), and B) one 'hard' nanoparticle (silver NP covered with cationic carbosilane dendritic moieties); and membrane-bound protein phospholipase A2 from bovine pancreas. The hard and soft NPs have differences in the nature of their interactions with phospholipase A2. This enzyme surrounds hard AgNP, whereas dendrimer and amphiphilic dendron form aggregates/micelles with phospholipase A2. There is a difference in action of phospholipase A2 bound to the core of dendrimer, and of micelles formed from non-covalent interactions between the amphiphilic dendron. These data are important in understanding the nature of interaction between different kinds of nanoparticles and proteins.
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Affiliation(s)
- Maria Terehova
- Institute of Biophysics and Cell Engineering of NASB, Minsk, Belarus
| | - Volha Dzmitruk
- Institute of Biophysics and Cell Engineering of NASB, Minsk, Belarus
| | - Viktar Abashkin
- Institute of Biophysics and Cell Engineering of NASB, Minsk, Belarus
| | | | | | - Maria Bryszewska
- Department of General Biophysics, University of Lodz, Pomorska str. 141/143, 90-236, Lodz, Poland
| | | | - Maksim Ionov
- Department of General Biophysics, University of Lodz, Pomorska str. 141/143, 90-236, Lodz, Poland
| | - Rafael Gómez
- Dpto. de Química Orgánica y Química Inorgánica, Universidad de Alcalá, Alcalá de Henares, Madrid, Spain; Networking Research Center for Bioengineering, Biomaterials and Nanomedicine(CIBER-BBN), Spain
| | - F Javier de la Mata
- Dpto. de Química Orgánica y Química Inorgánica, Universidad de Alcalá, Alcalá de Henares, Madrid, Spain; Networking Research Center for Bioengineering, Biomaterials and Nanomedicine(CIBER-BBN), Spain
| | - Serge Mignani
- Laboratoire de Chimie et Biochimie Pharmacologiques et Toxicologiques CNRS UMR 860 Université Paris Descartes PRES Sorbone Paris Cité, rue des Saints Pères, 75006, Paris, France
| | - Xiangyang Shi
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai, 201620, PR China
| | - Jean-Pierre Majoral
- Laboratoire Chimie de Coordination, CNRS, 205 route de Narbonne, 31077, Toulouse Cedex, France; Université de Toulouse, UPS, INP, Toulouse, 31077 Cedex 4, France
| | - Aleksandr Sukhodola
- B.I. Stepanov Institute of Physics of NASB, Skoriny str. 68, 220072, Minsk, Belarus
| | - Dzmitry Shcharbin
- Institute of Biophysics and Cell Engineering of NASB, Minsk, Belarus.
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5
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Carbajo-Gordillo AI, Jiménez Blanco JL, Benito JM, Lana H, Marcelo G, Di Giorgio C, Przybylski C, Hinou H, Ceña V, Ortiz Mellet C, Mendicuti F, Tros de Ilarduya C, García Fernández JM. Click Synthesis of Size- and Shape-Tunable Star Polymers with Functional Macrocyclic Cores for Synergistic DNA Complexation and Delivery. Biomacromolecules 2020; 21:5173-5188. [PMID: 33084317 DOI: 10.1021/acs.biomac.0c01283] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The architectural perfection and multivalency of dendrimers have made them useful for biodelivery via peripheral functionalization and the adjustment of dendrimer generations. Modulation of the core-forming and internal matrix-forming structures offers virtually unlimited opportunities for further optimization, but only in a few cases this has been made compatible with strict diastereomeric purity over molecularly diverse series, low toxicity, and limited synthetic effort. Fully regular star polymers built on biocompatible macrocyclic platforms, such as hyperbranched cyclodextrins, offer advantages in terms of facile synthesis and flexible compositions, but core elaboration in terms of shape and function becomes problematic. Here we report the synthesis and characterization of star polymers consisting of functional trehalose-based macrocyclic cores (cyclotrehalans, CTs) and aminothiourea dendron arms, which can be efficiently synthesized from sequential click reactions of orthogonal monomers, display no cytotoxicity, and efficiently complex and deliver plasmid DNA in vitro and in vivo. When compared with some commercial cationic dendrimers or polymers, the new CT-scaffolded star polymers show better transfection efficiencies in several cell lines and structure-dependent cell selectivity patterns. Notably, the CT core could be predefined to exert Zn(II) complexing or molecular inclusion capabilities, which has been exploited to synergistically boost cell transfection by orders of magnitude and modulate the organ tropism in vivo.
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Affiliation(s)
- Ana I Carbajo-Gordillo
- Instituto de Investigaciones Químicas (IIQ), CSIC - Universidad de Sevilla, Avda. Américo Vespucio 49, 41092 Sevilla, Spain
| | - José L Jiménez Blanco
- Department of Organic Chemistry, Faculty of Chemistry, University of Seville, c/Profesor García González 1, 41012 Sevilla, Spain
| | - Juan M Benito
- Instituto de Investigaciones Químicas (IIQ), CSIC - Universidad de Sevilla, Avda. Américo Vespucio 49, 41092 Sevilla, Spain
| | - Hugo Lana
- Department of Pharmaceutical Technology and Chemistry, School of Pharmacy and Nutrition, University of Navarra, 31080 Pamplona, Spain
| | - Gema Marcelo
- Department of Analytical Chemistry, Physical Chemistry and Chemical Engineering, Faculty of Chemistry, University of Alcalá, Alcalá de Henares, Madrid, Spain
| | - Christophe Di Giorgio
- Institut de Chimie Nice, UMR 7272, Université Côte d'Azur, 28 Avenue de Valrose, F-06108 Nice, France
| | - Cédric Przybylski
- CNRS, Institut Parisien de Chimie Moléculaire, IPCM, Sorbonne Université, Paris, France
| | - Hiroshi Hinou
- Graduate School and Faculty of Advanced Life Science, Laboratory of Advanced Chemical Biology, Hokkaido University, N21 W11, Sapporo 001-0021, Japan
| | - Valentín Ceña
- Unidad Asociada Neurodeath, Facultad de Medicina, Universidad de Castilla-La Mancha, Albacete, Spain.,CIBERNED, Instituto de Salud Carlos III, Madrid, Spain
| | - Carmen Ortiz Mellet
- Department of Organic Chemistry, Faculty of Chemistry, University of Seville, c/Profesor García González 1, 41012 Sevilla, Spain
| | - Francisco Mendicuti
- Department of Analytical Chemistry, Physical Chemistry and Chemical Engineering, Faculty of Chemistry, University of Alcalá, Alcalá de Henares, Madrid, Spain
| | - Conchita Tros de Ilarduya
- Department of Pharmaceutical Technology and Chemistry, School of Pharmacy and Nutrition, University of Navarra, 31080 Pamplona, Spain
| | - José M García Fernández
- Instituto de Investigaciones Químicas (IIQ), CSIC - Universidad de Sevilla, Avda. Américo Vespucio 49, 41092 Sevilla, Spain
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Developing small activating RNA as a therapeutic: current challenges and promises. Ther Deliv 2020; 10:151-164. [PMID: 30909853 DOI: 10.4155/tde-2018-0061] [Citation(s) in RCA: 46] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
RNA activation (RNAa) allows specific gene upregulation mediated by a small activating RNA (saRNA). Harnessing this process would help in developing novel therapeutics for undruggable diseases. Since its discovery in mid 2000s, improvements of saRNA design, synthetic chemistry and understanding of the biology have matured the way to apply RNAa. Indeed, MiNA therapeutics Ltd has conducted the first RNAa clinical trial for advanced hepatocellular carcinoma patients with promising outcomes. However, to fully realize the RNAa potential better saRNA delivery strategies are needed to target other diseases. Currently, saRNA can be delivered in vivo by lipid nanoparticles, dendrimers, lipid and polymer hybrids and aptamers. Further developing these delivery technologies and novel application of RNAa will prove to be invaluable for new treatment development.
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Barrios-Gumiel A, Sánchez-Nieves J, Pedziwiatr-Werbicka E, Abashkin V, Shcharbina N, Shcharbin D, Glińska S, Ciepluch K, Kuc-Ciepluch D, Lach D, Bryszewska M, Gómez R, de la Mata FJ. Effect of PEGylation on the biological properties of cationic carbosilane dendronized gold nanoparticles. Int J Pharm 2019; 573:118867. [PMID: 31765788 DOI: 10.1016/j.ijpharm.2019.118867] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2019] [Revised: 11/06/2019] [Accepted: 11/11/2019] [Indexed: 12/26/2022]
Abstract
Heterofunctionalized gold nanoparticles (AuNPs) were obtained in a one pot reaction of gold precursor with cationic carbosilane dendrons (first to third generations, 1-3G) and (polyethylene)glycol (PEG) ligands in the presence of a reducing agent. The final dendron/PEG proportion on AuNPs depends on the initial dendron/PEG ratio (3/1, 1/1, 1/3) and dendron generation. AuNPs were characterized by transmission electron microscopy (TEM), dynamic light scattering (DLS), ultraviolet spectroscopy (UV-VIS), thermogravimetric analysis (TGA), nuclear magnetic resonance (1H NMR) and zeta potential (ZP). Several assays have been carried out to determine the relevance of PEG/dendron ratio and dendron generation in the biomedical properties of PEGylated AuNPs and the results have been compared with those obtained for non-PEGylated AuNPs. Finally, analyses of PEG recognition by anti-PEG antibodies were carried out. In general, haemolysis, platelet aggregation and toxicity were reduced after PEGylation of AuNPs, the effect being dependent on dendron generation and dendron/PEG ratio. Dendron generation determines the exposure of PEG ligand and the interaction of this ligand with AuNPs environment. On the other hand, increasing PEG proportion diminishes toxicity but also favors interaction with antibodies.
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Affiliation(s)
- Andrea Barrios-Gumiel
- Dpto. de Química Orgánica y Química Inorgánica, Universidad de Alcalá (UAH), Campus Universitario, E-28871 Alcalá de Henares, Madrid, Spain; Instituto de Investigación Química "Andrés M. del Río" (IQAR), Universidad de Alcalá (UAH), Spain; Networking Research Center for Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Spain; Instituto Ramón y Cajal de Investigación Sanitaria, IRYCIS, Spain
| | - Javier Sánchez-Nieves
- Dpto. de Química Orgánica y Química Inorgánica, Universidad de Alcalá (UAH), Campus Universitario, E-28871 Alcalá de Henares, Madrid, Spain; Instituto de Investigación Química "Andrés M. del Río" (IQAR), Universidad de Alcalá (UAH), Spain; Networking Research Center for Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Spain; Instituto Ramón y Cajal de Investigación Sanitaria, IRYCIS, Spain.
| | - Elzbieta Pedziwiatr-Werbicka
- University of Lodz, Faculty of Biology and Environmental Protection, Department of General Biophysics, 141/143 Pomorska Street, 90-236 Lodz, Poland.
| | - Viktar Abashkin
- Institute of Biophysics and Cell Engineering of NASB, Minsk, Belarus
| | - Natallia Shcharbina
- Clinical Unit "Eleous" at Religious Community «All Saints Parish in Minsk Eparchy of Belarusian Orthodox Church», Minsk, Belarus.
| | - Dzmitry Shcharbin
- Institute of Biophysics and Cell Engineering of NASB, Minsk, Belarus
| | - Sława Glińska
- University of Lodz, Faculty of Biology and Environmental Protection, Laboratory of Microscopic Imaging and Specialized Biological Techniques, Banacha 12/16, 90-237 Lodz, Poland.
| | - Karol Ciepluch
- Department of Biochemistry and Genetics, Jan Kochanowski Universit, Świętokrzyska Street 15, 25-406 Kielce, Poland
| | - Dorota Kuc-Ciepluch
- Department of Biochemistry and Genetics, Jan Kochanowski Universit, Świętokrzyska Street 15, 25-406 Kielce, Poland
| | - Dominika Lach
- University of Lodz, Faculty of Biology and Environmental Protection, Department of General Biophysics, 141/143 Pomorska Street, 90-236 Lodz, Poland
| | - Maria Bryszewska
- University of Lodz, Faculty of Biology and Environmental Protection, Department of General Biophysics, 141/143 Pomorska Street, 90-236 Lodz, Poland
| | - Rafael Gómez
- Dpto. de Química Orgánica y Química Inorgánica, Universidad de Alcalá (UAH), Campus Universitario, E-28871 Alcalá de Henares, Madrid, Spain; Instituto de Investigación Química "Andrés M. del Río" (IQAR), Universidad de Alcalá (UAH), Spain; Networking Research Center for Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Spain; Instituto Ramón y Cajal de Investigación Sanitaria, IRYCIS, Spain.
| | - F Javier de la Mata
- Dpto. de Química Orgánica y Química Inorgánica, Universidad de Alcalá (UAH), Campus Universitario, E-28871 Alcalá de Henares, Madrid, Spain; Instituto de Investigación Química "Andrés M. del Río" (IQAR), Universidad de Alcalá (UAH), Spain; Networking Research Center for Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Spain; Instituto Ramón y Cajal de Investigación Sanitaria, IRYCIS, Spain.
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8
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Serchenya T, Shcharbin D, Shyrochyna I, Sviridov O, Terekhova M, Dzmitruk V, Abashkin V, Apartsin E, Mignani S, Majoral JP, Ionov M, Bryszewska M. Immunoreactivity changes of human serum albumin and alpha-1-microglobulin induced by their interaction with dendrimers. Colloids Surf B Biointerfaces 2019; 179:226-232. [DOI: 10.1016/j.colsurfb.2019.03.065] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2018] [Revised: 02/11/2019] [Accepted: 03/28/2019] [Indexed: 01/15/2023]
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9
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Zhang X, Li C, Pan J, Liu R, Cao Z. Searching for a bisphenol A substitute: Effects of bisphenols on catalase molecules and human red blood cells. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 669:112-119. [PMID: 30878919 DOI: 10.1016/j.scitotenv.2019.03.129] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/19/2018] [Revised: 03/08/2019] [Accepted: 03/09/2019] [Indexed: 06/09/2023]
Abstract
Some countries are limiting the use of BPA. To meet the challenge of finding a suitable alternative requires safety assessments of the common analogs of BPA. Bisphenol S (BPS), Bisphenol F (BPF) and Bisphenol B (BPB) are increasingly used as substitutes and the aim of this study is to assess their human health implications. By comparing the effects on hemoglobin spectroscopically, the least toxic possibility is using BPB as a substitute for BPA. In this paper, the effects of BPS, BPF and BPB on catalase were compared at the molecular level and the same result was found. To further enhance our understanding of BPB, the impact of BPB on antioxidant defense system, structure (hemolysis rate) and function (ATPase activity) of red blood cell (RBCs) were analyzed at the cellular level. It has been found that low concentrations (below 0.1 μM) of BPB slightly increased the activity of T-AOC (112.7%), GST (118.4%) and T-SOD (131.8%) while high concentrations decreased the activity of T-AOC (90.2%), T-SOD (67.8%), GST (74.7%) and GSH-Px (61.7%). It also has been shown that BPB had little effect on MDA (100%-101.6%) and CAT activity (100%-100.5%) with reduced activity of ATPase (100%-27.7%). In conclusion, BPB may possibly be used as the BPA substitute in the manufacture, and the concentration of BPB should be controlled within 1 μM.
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Affiliation(s)
- Xun Zhang
- School of Environmental Science and Engineering, Shandong University, China-America CRC for Environment & Health, 72# Jimo Binhai Road, Qingdao, Shandong 266237, PR China
| | - Chao Li
- Clinical Laboratory of School Hospital, Shandong University, Shandong Province, 91# Shanda North Road, Jinan 250100, PR China
| | - Jie Pan
- School of Environmental Science and Engineering, Shandong University, China-America CRC for Environment & Health, 72# Jimo Binhai Road, Qingdao, Shandong 266237, PR China
| | - Rutao Liu
- School of Environmental Science and Engineering, Shandong University, China-America CRC for Environment & Health, 72# Jimo Binhai Road, Qingdao, Shandong 266237, PR China.
| | - Zhaozhen Cao
- School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, Shandong Province, PR China.
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10
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Herma R, Wrobel D, Liegertová M, Müllerová M, Strašák T, Maly M, Semerádtová A, Štofik M, Appelhans D, Maly J. Carbosilane dendrimers with phosphonium terminal groups are low toxic non-viral transfection vectors for siRNA cell delivery. Int J Pharm 2019; 562:51-65. [PMID: 30877030 DOI: 10.1016/j.ijpharm.2019.03.018] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2018] [Revised: 03/08/2019] [Accepted: 03/09/2019] [Indexed: 02/07/2023]
Abstract
Non-viral gene delivery vectors studied in the gene therapy applications are often designed with the cationic nitrogen containing groups necessary for binding and cell release of nucleic acids. Disadvantage is a relatively high toxicity which restricts the in vivo use of such nanoparticles. Here we show, that the 3rd generation carbosilane dendrimers possessing (trimethyl)phosphonium (PMe3) groups on their periphery were able to effectively deliver the functional siRNA into the cells (B14, Cricetulus griseus), release it into the cytosol and finally to achieve up to 40% gene silencing of targeted gene (glyceraldehyde-3-phosphate dehydrogenase (GAPDH)) with the comparable or, in some cases, even better effectivity as their ammonium counterparts. Moreover, such cationic dendrimers show relatively low in vivo toxicity as compared to their ammonium analogues when analyzed by standard fish embryo test (FET) on Danio rerio in vivo model, with LD50 = 6.26 µM after 48 h of incubation. This is more than 10-fold improvement as compared to published values for various other types of cationic dendrimers. We discuss the potential of further increase of the transfection efficiency, endosomal escape and decrease of toxicity of such non-viral vectors, based on the systematic screening of different types of substituents on central phosphonium atom.
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Affiliation(s)
- Regina Herma
- Faculty of Science, J.E. Purkyně University in Ústí nad Labem, 40096 Ústí nad Labem, Czech Republic
| | - Dominika Wrobel
- Faculty of Science, J.E. Purkyně University in Ústí nad Labem, 40096 Ústí nad Labem, Czech Republic
| | - Michaela Liegertová
- Faculty of Science, J.E. Purkyně University in Ústí nad Labem, 40096 Ústí nad Labem, Czech Republic
| | - Monika Müllerová
- Faculty of Science, J.E. Purkyně University in Ústí nad Labem, 40096 Ústí nad Labem, Czech Republic; Institute of Chemical Process Fundamentals of the CAS, v.v.i., Prague, Czech Republic
| | - Tomáš Strašák
- Faculty of Science, J.E. Purkyně University in Ústí nad Labem, 40096 Ústí nad Labem, Czech Republic; Institute of Chemical Process Fundamentals of the CAS, v.v.i., Prague, Czech Republic
| | - Marek Maly
- Faculty of Science, J.E. Purkyně University in Ústí nad Labem, 40096 Ústí nad Labem, Czech Republic
| | - Alena Semerádtová
- Faculty of Science, J.E. Purkyně University in Ústí nad Labem, 40096 Ústí nad Labem, Czech Republic
| | - Marcel Štofik
- Faculty of Science, J.E. Purkyně University in Ústí nad Labem, 40096 Ústí nad Labem, Czech Republic
| | - Dietmar Appelhans
- Leibniz Institute of Polymer Research Dresden, Hohe Straße 6, D-01069 Dresden, Germany
| | - Jan Maly
- Faculty of Science, J.E. Purkyně University in Ústí nad Labem, 40096 Ústí nad Labem, Czech Republic.
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11
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Vahidzadeh R, Khorram M, Shariati A. Model modification for equilibrium swelling of highly branched polyamine macromonomers. Polym Bull (Berl) 2019. [DOI: 10.1007/s00289-018-2438-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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12
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Saher O, Rocha CSJ, Zaghloul EM, Wiklander OPB, Zamolo S, Heitz M, Ezzat K, Gupta D, Reymond JL, Zain R, Hollfelder F, Darbre T, Lundin KE, El Andaloussi S, Smith CIE. Novel peptide-dendrimer/lipid/oligonucleotide ternary complexes for efficient cellular uptake and improved splice-switching activity. Eur J Pharm Biopharm 2018; 132:29-40. [PMID: 30193928 DOI: 10.1016/j.ejpb.2018.09.002] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2018] [Revised: 08/15/2018] [Accepted: 09/03/2018] [Indexed: 12/24/2022]
Abstract
Despite the advances in gene therapy and in oligonucleotide (ON) chemistry, efficient cellular delivery remains an obstacle. Most current transfection reagents suffer from low efficacy or high cytotoxicity. In this report, we describe the synergism between lipid and dendrimer delivery vectors to enhance the transfection efficiency, while avoiding high toxicity. We screened a library of 20 peptide dendrimers representing three different generations and evaluated their capability to deliver a single-stranded splice-switching ON after formulating with lipids (DOTMA/DOPE). The transfection efficiency was analyzed in 5 reporter cell lines, in serum-free and serum conditions, and with 5 different formulation protocols. All formulations displayed low cytotoxicity to the majority of the tested cell lines. The complex sizes were < 200 nm; particle size distributions of effective mixtures were < 80 nm; and, the zeta potential was dependent on the formulation buffer used. The best dendrimer enhanced transfection in a HeLa reporter cell line by 30-fold compared to untreated cells under serum-free conditions. Interestingly, addition of sucrose to the formulation enabled - for the first time - peptide dendrimers/lipid complexes to efficiently deliver splice-switching ON in the presence of serum, reaching 40-fold increase in splice switching. Finally, in vivo studies highlighted the potential of these formulae to change the biodistribution pattern to be more towards the liver (90% of injected dose) compared to the kidneys (5% of injected dose) or to unformulated ON. This success encourages further development of peptide dendrimer complexes active in serum and future investigation of mechanisms behind the influence of additives on transfection efficacy.
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Affiliation(s)
- Osama Saher
- Department of Laboratory Medicine, Clinical Research Center, Karolinska Institutet, Karolinska University Hospital Huddinge, 141 86 Huddinge, Sweden; Department Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Cairo University, Cairo, Egypt.
| | - Cristina S J Rocha
- Department of Laboratory Medicine, Clinical Research Center, Karolinska Institutet, Karolinska University Hospital Huddinge, 141 86 Huddinge, Sweden
| | - Eman M Zaghloul
- Department of Laboratory Medicine, Clinical Research Center, Karolinska Institutet, Karolinska University Hospital Huddinge, 141 86 Huddinge, Sweden
| | - Oscar P B Wiklander
- Department of Laboratory Medicine, Clinical Research Center, Karolinska Institutet, Karolinska University Hospital Huddinge, 141 86 Huddinge, Sweden
| | - Susanna Zamolo
- Department of Chemistry and Biochemistry, University of Bern, Freiestrasse 3, 3012 Bern, Switzerland
| | - Marc Heitz
- Department of Chemistry and Biochemistry, University of Bern, Freiestrasse 3, 3012 Bern, Switzerland
| | - Kariem Ezzat
- Department of Laboratory Medicine, Clinical Research Center, Karolinska Institutet, Karolinska University Hospital Huddinge, 141 86 Huddinge, Sweden
| | - Dhanu Gupta
- Department of Laboratory Medicine, Clinical Research Center, Karolinska Institutet, Karolinska University Hospital Huddinge, 141 86 Huddinge, Sweden
| | - Jean-Louis Reymond
- Department of Chemistry and Biochemistry, University of Bern, Freiestrasse 3, 3012 Bern, Switzerland
| | - Rula Zain
- Department of Laboratory Medicine, Clinical Research Center, Karolinska Institutet, Karolinska University Hospital Huddinge, 141 86 Huddinge, Sweden; Department of Clinical Genetics, Centre for Rare Diseases, Karolinska University Hospital, SE-171 76 Stockholm, Sweden
| | - Florian Hollfelder
- Department of Biochemistry, University of Cambridge 80 Tennis Court Road, Cambridge CB2 1GA, UK
| | - Tamis Darbre
- Department of Chemistry and Biochemistry, University of Bern, Freiestrasse 3, 3012 Bern, Switzerland
| | - Karin E Lundin
- Department of Laboratory Medicine, Clinical Research Center, Karolinska Institutet, Karolinska University Hospital Huddinge, 141 86 Huddinge, Sweden
| | - Samir El Andaloussi
- Department of Laboratory Medicine, Clinical Research Center, Karolinska Institutet, Karolinska University Hospital Huddinge, 141 86 Huddinge, Sweden
| | - C I Edvard Smith
- Department of Laboratory Medicine, Clinical Research Center, Karolinska Institutet, Karolinska University Hospital Huddinge, 141 86 Huddinge, Sweden.
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13
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Dzmitruk V, Apartsin E, Ihnatsyeu-Kachan A, Abashkin V, Shcharbin D, Bryszewska M. Dendrimers Show Promise for siRNA and microRNA Therapeutics. Pharmaceutics 2018; 10:E126. [PMID: 30096839 PMCID: PMC6161126 DOI: 10.3390/pharmaceutics10030126] [Citation(s) in RCA: 56] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2018] [Revised: 08/02/2018] [Accepted: 08/03/2018] [Indexed: 12/24/2022] Open
Abstract
The lack of an appropriate intracellular delivery system for therapeutic nucleic acids (TNAs) is a major problem in molecular biology, biotechnology, and medicine. A relatively new class of highly symmetrical hyperbranched polymers, called dendrimers, shows promise for transporting small TNAs into both cells and target tissues. Dendrimers have intrinsic advantages for this purpose: their physico-chemical and biological properties can be controlled during synthesis, and they are able to transport large numbers of TNA molecules that can specifically suppress the expression of single or multiple targeted genes. Numerous chemical modifications of dendrimers extend the biocompatibility of synthetic materials and allow targeted vectors to be designed for particular therapeutic purposes. This review summarizes the latest experimental data and trends in the medical application of various types of dendrimers and dendrimer-based nanoconstructions as delivery systems for short small interfering RNAs (siRNAs) and microRNAs at the cell and organism levels. It provides an overview of the structural features of dendrimers, indicating their advantages over other types of TNA transporters.
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Affiliation(s)
- Volha Dzmitruk
- Institute of Biophysics and Cell Engineering of NASB, 220072 Minsk, Belarus.
| | - Evgeny Apartsin
- Institute of Chemical Biology and Fundamental Medicine SB RAS, 630090 Novosibirsk, Russia.
| | - Aliaksei Ihnatsyeu-Kachan
- Institute of Biophysics and Cell Engineering of NASB, 220072 Minsk, Belarus.
- Center for Theragnosis, Biomedical Research Institute, Korea Institute of Science and Technology (KIST), 02972 Seoul, Korea.
| | - Viktar Abashkin
- Institute of Biophysics and Cell Engineering of NASB, 220072 Minsk, Belarus.
| | - Dzmitry Shcharbin
- Institute of Biophysics and Cell Engineering of NASB, 220072 Minsk, Belarus.
| | - Maria Bryszewska
- Department of General Biophysics, Faculty of Biology and Environmental Protection, University of Lodz, 90-236 Lodz, Poland.
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14
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Li J, Liang H, Liu J, Wang Z. Poly (amidoamine) (PAMAM) dendrimer mediated delivery of drug and pDNA/siRNA for cancer therapy. Int J Pharm 2018; 546:215-225. [PMID: 29787895 DOI: 10.1016/j.ijpharm.2018.05.045] [Citation(s) in RCA: 157] [Impact Index Per Article: 26.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2018] [Revised: 05/18/2018] [Accepted: 05/18/2018] [Indexed: 12/18/2022]
Abstract
Poly (amidoamine) (PAMAM) dendrimers are well-defined, highly branched macromolecules with numerous active amine groups on the surface. Because of their unique properties, PAMAM dendrimers have steadily grown in popularity in drug delivery, gene therapy, medical imaging and diagnostic application. This review focuses on the recent developments on the application in PAMAM dendrimers as effective carriers for drug and gene (pDNA, siRNA) delivery in cancer therapy, including: a) PAMAM for anticancer drug delivery; b) PAMAM and gene therapy; c) PAMAM used in overcoming tumor multidrug resistance; d) PAMAM used for hybrid nanoparticles; and e) PAMAM linked or loaded in other nanoparticles.
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Affiliation(s)
- Jun Li
- School of Life Sciences, Jiangsu Normal University, Xuzhou 221116, Jiangsu, China.
| | - Huamin Liang
- Institute of Technology Innovation, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230088, Anhui, China
| | - Jing Liu
- Collaborative Innovation Center for Biotherapy, Tsinghua University, Beijing 100084, China
| | - Ziyuan Wang
- School of Life Sciences, Jiangsu Normal University, Xuzhou 221116, Jiangsu, China
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15
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Tietze S, Schau I, Michen S, Ennen F, Janke A, Schackert G, Aigner A, Appelhans D, Temme A. A Poly(Propyleneimine) Dendrimer-Based Polyplex-System for Single-Chain Antibody-Mediated Targeted Delivery and Cellular Uptake of SiRNA. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2017; 13:1700072. [PMID: 28544767 DOI: 10.1002/smll.201700072] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/06/2017] [Revised: 04/13/2017] [Indexed: 06/07/2023]
Abstract
Therapeutics based on small interfering RNAs (siRNAs) offer a great potential to treat so far incurable diseases or metastatic cancer. However, the broad application of siRNAs using various nonviral carrier systems is hampered by unspecific toxic side effects, poor pharmacokinetics due to unwanted delivery of siRNA-loaded nanoparticles into nontarget organs, or rapid renal excretion. In order to overcome these obstacles, several targeting strategies using chemically linked antibodies and ligands have emerged. This study reports a new modular polyplex carrier system for targeted delivery of siRNA, which is based on transfection-disabled maltose-modified poly(propyleneimine)-dendrimers (mal-PPI) bioconjugated to single chain fragment variables (scFvs). To achieve targeted delivery into tumor cells expressing the epidermal growth factor receptor variant III (EGFRvIII), monobiotinylated anti-EGFRvIII scFv fused to a Propionibacterium shermanii transcarboxylase-derived biotinylation acceptor (P-BAP) is bioconjugated to mal-PPI through a novel coupling strategy solely based on biotin-neutravidin bridging. In contrast to polyplexes containing an unspecific control scFv-P-BAP, the generated EGFRvIII-specific polyplexes are able to exclusively deliver siRNA to tumor cells and tumors by receptor-mediated endocytosis. These results suggest that receptor-mediated uptake of otherwise noninternalized mal-PPI-based polyplexes is a promising avenue to improve siRNA therapy of cancer, and introduce a novel strategy for modular bioconjugation of protein ligands to nanoparticles.
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Affiliation(s)
- Stefanie Tietze
- Department of Neurosurgery, Section Experimental Neurosurgery and Tumor Immunology, University Hospital Carl Gustav Carus, TU Dresden, Fetscherstraße 74, 01307, Dresden, Germany
| | - Isabell Schau
- Department of Neurosurgery, Section Experimental Neurosurgery and Tumor Immunology, University Hospital Carl Gustav Carus, TU Dresden, Fetscherstraße 74, 01307, Dresden, Germany
| | - Susanne Michen
- Department of Neurosurgery, Section Experimental Neurosurgery and Tumor Immunology, University Hospital Carl Gustav Carus, TU Dresden, Fetscherstraße 74, 01307, Dresden, Germany
| | - Franka Ennen
- Leibniz Institute of Polymer Research Dresden, Hohe Straße 6, 01069, Dresden, Germany
| | - Andreas Janke
- Leibniz Institute of Polymer Research Dresden, Hohe Straße 6, 01069, Dresden, Germany
| | - Gabriele Schackert
- Department of Neurosurgery, Section Experimental Neurosurgery and Tumor Immunology, University Hospital Carl Gustav Carus, TU Dresden, Fetscherstraße 74, 01307, Dresden, Germany
- German Cancer Consortium (DKTK), Partner Site Dresden German Cancer Research Center (DKFZ) Heidelberg, German and National Center for Tumor Diseases (NCT), 01307, Dresden, Germany
| | - Achim Aigner
- Rudolf-Boehm-Institute for Pharmacology and Toxicology, Clinical Pharmacology, University Medicine Leipzig, Härtelstraße 16-18, 04107, Leipzig, Germany
| | - Dietmar Appelhans
- Leibniz Institute of Polymer Research Dresden, Hohe Straße 6, 01069, Dresden, Germany
| | - Achim Temme
- Department of Neurosurgery, Section Experimental Neurosurgery and Tumor Immunology, University Hospital Carl Gustav Carus, TU Dresden, Fetscherstraße 74, 01307, Dresden, Germany
- German Cancer Consortium (DKTK), Partner Site Dresden German Cancer Research Center (DKFZ) Heidelberg, German and National Center for Tumor Diseases (NCT), 01307, Dresden, Germany
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16
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Shih Y, Venault A, Tayo LL, Chen SH, Higuchi A, Deratani A, Chinnathambi A, Alharbi SA, Quemener D, Chang Y. A Zwitterionic-Shielded Carrier with pH-Modulated Reversible Self-Assembly for Gene Transfection. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2017; 33:1914-1926. [PMID: 28147481 DOI: 10.1021/acs.langmuir.6b03685] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Cationic vectors are ideal candidates for gene delivery thanks to their capability to carry large gene inserts and their scalable production. However, their cationic density gives rise to high cytotoxicity. We present the proper designed core-shell polyplexes made of either poly(ethylene imine) (PEI) or poly(2-dimethylamino ethyl methacrylate) (PDMAEMA) as the core and zwitterionic poly(acrylic acid)-block-poly(sulfobetaine methacrylate) (PAA-b-PSBMA) diblock copolymer as the shell. Gel retardation and ethidium bromide displacement assays were used to determine the PEI/DNA or PDMAEMA/DNA complexation. At neutral pH, the copolymer serves as a protective shell of the complex. As PSBMA is a nonfouling block, the shell reduced the cytotoxicity and enhanced the hemocompatibility (lower hemolysis activity, longer plasma clotting time) of the gene carriers. PAA segments in the copolymer impart pH sensitivity by allowing deshielding of the core in acidic solution. Therefore, the transfection efficiency of polyplexes at pH 6.5 was better than at pH 7.0, from β-galactosidase assay, and for all PAA-b-PSBMA tested. These results were supported by more favorable physicochemical properties in acidic solution (zeta potential, particle size, and interactions between the polymer and DNA). Thus, the results of this study offer a potential route to the development of efficient and nontoxic pH-sensitive gene carriers.
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Affiliation(s)
- Yuju Shih
- R&D Center for Membrane Technology and Department of Chemical Engineering, Chung Yuan Christian University , Chung-Li, Taoyuan 320, Taiwan
| | - Antoine Venault
- R&D Center for Membrane Technology and Department of Chemical Engineering, Chung Yuan Christian University , Chung-Li, Taoyuan 320, Taiwan
| | - Lemmuel L Tayo
- R&D Center for Membrane Technology and Department of Chemical Engineering, Chung Yuan Christian University , Chung-Li, Taoyuan 320, Taiwan
- School of Chemical Engineering and Chemistry, Mapúa Institute of Technology , Intramuros, Manila 1002, Philippines
| | - Sheng-Han Chen
- R&D Center for Membrane Technology and Department of Chemical Engineering, Chung Yuan Christian University , Chung-Li, Taoyuan 320, Taiwan
| | - Akon Higuchi
- Department of Chemical and Materials Engineering, National Central University , Jhong-Li, Taoyuan 320, Taiwan
- Department of Botany and Microbiology, College of Science, King Saud University , P.O. Box 2455, Riyadh 11451, Saudi Arabia
| | - Andre Deratani
- IEM (Institut Europeen des Membranes), UMR 5635 (CNRS-ENSCM-UM2), Universite Montpellier 2, Place E. Bataillon, F-34095, Montpellier, France
| | - Arunachalam Chinnathambi
- Department of Botany and Microbiology, College of Science, King Saud University , P.O. Box 2455, Riyadh 11451, Saudi Arabia
| | - Sulaiman Ali Alharbi
- Department of Botany and Microbiology, College of Science, King Saud University , P.O. Box 2455, Riyadh 11451, Saudi Arabia
| | - Damien Quemener
- IEM (Institut Europeen des Membranes), UMR 5635 (CNRS-ENSCM-UM2), Universite Montpellier 2, Place E. Bataillon, F-34095, Montpellier, France
| | - Yung Chang
- R&D Center for Membrane Technology and Department of Chemical Engineering, Chung Yuan Christian University , Chung-Li, Taoyuan 320, Taiwan
- Department of Botany and Microbiology, College of Science, King Saud University , P.O. Box 2455, Riyadh 11451, Saudi Arabia
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17
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Strašák T, Malý J, Wróbel D, Malý M, Herma R, Čermák J, Müllerová M, Št′astná LČ, Cuřínová P. Phosphonium carbosilane dendrimers for biomedical applications – synthesis, characterization and cytotoxicity evaluation. RSC Adv 2017. [DOI: 10.1039/c7ra01845b] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Phosphonium carbosilane dendrimers could represent an alternative to ammonium ones in gene therapy applications with high potential of mitochondrial targeting.
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Affiliation(s)
- Tomáš Strašák
- Institute of Chemical Process Fundamentals of the CAS
- CZ-165 02 Prague 6 - Suchdol
- Czech Republic
| | - Jan Malý
- Department of Biology
- J.E. Purkyně University
- 40096 Usti nad Labem
- Czech Republic
| | - Dominika Wróbel
- Department of Biology
- J.E. Purkyně University
- 40096 Usti nad Labem
- Czech Republic
| | - Marek Malý
- Department of Physics
- J. E. Purkyně University
- 40096 Usti nad Labem
- Czech Republic
| | - Regina Herma
- Department of Biology
- J.E. Purkyně University
- 40096 Usti nad Labem
- Czech Republic
| | - Jan Čermák
- Institute of Chemical Process Fundamentals of the CAS
- CZ-165 02 Prague 6 - Suchdol
- Czech Republic
- Department of Chemistry
- J.E. Purkyně University
| | - Monika Müllerová
- Institute of Chemical Process Fundamentals of the CAS
- CZ-165 02 Prague 6 - Suchdol
- Czech Republic
| | | | - Petra Cuřínová
- Institute of Chemical Process Fundamentals of the CAS
- CZ-165 02 Prague 6 - Suchdol
- Czech Republic
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18
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Liko F, Hindré F, Fernandez-Megia E. Dendrimers as Innovative Radiopharmaceuticals in Cancer Radionanotherapy. Biomacromolecules 2016; 17:3103-3114. [PMID: 27608327 DOI: 10.1021/acs.biomac.6b00929] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Radiotherapy is one of the most commonly used cancer treatments, with an estimate of 40% success that could be improved further if more efficient targeting and retention of radiation at the tumor site were achieved. This review focuses on the use of dendrimers in radionanotherapy, an emerging technology aimed to improve the efficiency of radiotherapy by implementing nanovectorization, an already established praxis in drug delivery and diagnosis. The labeling of dendrimers with radionuclides also aims to reduce the dose of radiolabeled materials and, hence, their toxicity and tumor resistance. Examples of radiolabeled dendrimers with alpha, beta, and Auger electron emitters are commented, along with the use of dendrimers in boron neutron capture therapy (BNCT). The conjugation of radiolabeled dendrimers to monoclonal antibodies for a more efficient targeting and the application of dendrimers in gene delivery radiotherapy are also covered.
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Affiliation(s)
- Flonja Liko
- INSERM U 1066, 'Micro et Nanomédecines biomimétiques - MINT', and Plateforme de Radiobiologie et d'IMagerie EXpérimentale, PRIMEX, SFR ICAT 4208, Université Angers, UMR-S1066, 49933 Angers, Cedex 9, France.,Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS) and Departamento de Química Orgánica, Universidade de Santiago de Compostela , Jenaro de la Fuente s/n, 15782 Santiago de Compostela, Spain
| | - François Hindré
- INSERM U 1066, 'Micro et Nanomédecines biomimétiques - MINT', and Plateforme de Radiobiologie et d'IMagerie EXpérimentale, PRIMEX, SFR ICAT 4208, Université Angers, UMR-S1066, 49933 Angers, Cedex 9, France
| | - Eduardo Fernandez-Megia
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS) and Departamento de Química Orgánica, Universidade de Santiago de Compostela , Jenaro de la Fuente s/n, 15782 Santiago de Compostela, Spain
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19
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Liu C, Jiang K, Tai L, Liu Y, Wei G, Lu W, Pan W. Facile Noninvasive Retinal Gene Delivery Enabled by Penetratin. ACS APPLIED MATERIALS & INTERFACES 2016; 8:19256-67. [PMID: 27400087 DOI: 10.1021/acsami.6b04551] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Gene delivery to the posterior segment of the eye is severely hindered by the impermeability of defensive barriers; therefore, in clinical settings, genomic medicines are mainly administered by intravitreal injection. We previously found that penetratin could transport the covalently conjugated fluorophore to the fundus oculi by topical instillation. In this study, gene delivery systems enabled by penetratin were designed based on electrostatic binding to target the retina via a noninvasive administration route and prepared with red fluorescent protein plasmid (pRFP) and/or poly(amidoamine) dendrimer of low molecular weight (G3 PAMAM). Formulation optimization, structure confirmation, and characterization were subsequently conducted. Penetratin alone showed limited ability to condense the plasmid but had powerful uptake and transfection by corneal and conjunctival cells. G3 PAMAM was nontoxic to the ocular cells, and when introduced into the penetratin-incorporated complex, the plasmid was condensed more compactly. Therefore, further improved cellular uptake and transfection were observed. After being instilled in the conjunctival sac of rats, the intact complexes penetrated rapidly from the ocular surface into the fundus and resided in the retina for more than 8 h, which resulted in efficient expression of RFP in the posterior segment. Intraocular distribution of the complexes suggested that the plasmids were absorbed into the eyes through a noncorneal pathway during which penetratin played a crucial role. This study provides a facile and friendly approach for intraocular gene delivery and is an important step toward the development of noninvasive gene therapy for posterior segment diseases.
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Affiliation(s)
- Chang Liu
- Key Laboratory of Smart Drug Delivery, Ministry of Education; Department of Pharmaceutics, School of Pharmacy, Fudan University , Shanghai 201203, China
| | - Kuan Jiang
- Key Laboratory of Smart Drug Delivery, Ministry of Education; Department of Pharmaceutics, School of Pharmacy, Fudan University , Shanghai 201203, China
| | - Lingyu Tai
- Key Laboratory of Smart Drug Delivery, Ministry of Education; Department of Pharmaceutics, School of Pharmacy, Fudan University , Shanghai 201203, China
- School of Pharmacy, Shenyang Pharmaceutical University , Shenyang 110016, China
| | - Yu Liu
- Key Laboratory of Smart Drug Delivery, Ministry of Education; Department of Pharmaceutics, School of Pharmacy, Fudan University , Shanghai 201203, China
| | - Gang Wei
- Key Laboratory of Smart Drug Delivery, Ministry of Education; Department of Pharmaceutics, School of Pharmacy, Fudan University , Shanghai 201203, China
| | - Weiyue Lu
- Key Laboratory of Smart Drug Delivery, Ministry of Education; Department of Pharmaceutics, School of Pharmacy, Fudan University , Shanghai 201203, China
| | - Weisan Pan
- School of Pharmacy, Shenyang Pharmaceutical University , Shenyang 110016, China
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20
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Perez Ruiz de Garibay A. Endocytosis in gene therapy with non-viral vectors. Wien Med Wochenschr 2016; 166:227-35. [DOI: 10.1007/s10354-016-0450-5] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2016] [Accepted: 03/01/2016] [Indexed: 01/06/2023]
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21
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Bravo I, Alonso-Moreno C, Posadas I, Albaladejo J, Carrillo-Hermosilla F, Ceña V, Garzón A, López-Solera I, Romero-Castillo L. Phenyl-guanidine derivatives as potential therapeutic agents for glioblastoma multiforme: catalytic syntheses, cytotoxic effects and DNA affinity. RSC Adv 2016. [DOI: 10.1039/c5ra17920c] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Glioblastoma is a highly malignant form of brain tumor. In the work described here, several substituted phenyl-guanidine derivatives were developed for application in glioblastoma treatment.
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Affiliation(s)
- I. Bravo
- Departamento de Química-Física
- Universidad de Castilla-La Mancha
- Facultad de Farmacia
- Campus Universitario de Albacete
- 02071-Albacete
| | - C. Alonso-Moreno
- Departamento de Química Inorgánica
- Orgánica y Bioquímica
- Universidad de Castilla-La Mancha
- Facultad de Farmacia
- Campus Universitario de Albacete
| | - I. Posadas
- Unidad Asociada Neurodeath CSIC-UCLM
- Departamento de Ciencias Médicas
- Facultad de Farmacia
- Universidad de Castilla-La Mancha
- Campus Universitario de Albacete
| | - J. Albaladejo
- Departamento de Química-Física
- Universidad de Castilla-La Mancha
- Facultad de Ciencias y Tecnologías Químicas
- Campus Universitario de Ciudad Real
- 13071-Ciudad Real
| | - F. Carrillo-Hermosilla
- Departamento de Química Inorgánica
- Orgánica y Bioquímica
- Universidad de Castilla-La Mancha
- Facultad de Ciencias y Tecnologías Químicas
- Campus Universitario de Ciudad Real
| | - V. Ceña
- Unidad Asociada Neurodeath CSIC-UCLM
- Departamento de Ciencias Médicas
- Facultad de Medicina
- Universidad de Castilla-La Mancha
- Campus Universitario de Albacete
| | - A. Garzón
- Departamento de Química-Física
- Universidad de Castilla-La Mancha
- Facultad de Farmacia
- Campus Universitario de Albacete
- 02071-Albacete
| | - I. López-Solera
- Departamento de Química Inorgánica
- Orgánica y Bioquímica
- Universidad de Castilla-La Mancha
- Facultad de Ciencias y Tecnologías Químicas
- Campus Universitario de Ciudad Real
| | - L. Romero-Castillo
- Unidad Asociada Neurodeath CSIC-UCLM
- Departamento de Ciencias Médicas
- Facultad de Farmacia
- Universidad de Castilla-La Mancha
- Campus Universitario de Albacete
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22
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Veilleux D, Nelea M, Biniecki K, Lavertu M, Buschmann MD. Preparation of Concentrated Chitosan/DNA Nanoparticle Formulations by Lyophilization for Gene Delivery at Clinically Relevant Dosages. J Pharm Sci 2016; 105:88-96. [DOI: 10.1016/j.xphs.2015.11.001] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2015] [Revised: 10/08/2015] [Accepted: 10/28/2015] [Indexed: 10/22/2022]
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23
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Grillaud M, Ruiz de Garibay AP, Bianco A. Polycationic adamantane-based dendrons form nanorods in complex with plasmid DNA. RSC Adv 2016. [DOI: 10.1039/c6ra01281g] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
Different HYDRAmers are synthesized and complexed to a model plasmid DNA. Appropriate chemical modifications can improve efficiently the complexation to get HYDRAplexes, in form of long nanorods, with very good DNA binding and protecting properties.
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Affiliation(s)
- Maxime Grillaud
- CNRS
- Institut de Biologie Moléculaire et Cellulaire
- Immunopathologie et Chimie Thérapeutique
- 67000 Strasbourg
- France
| | - Aritz Perez Ruiz de Garibay
- CNRS
- Institut de Biologie Moléculaire et Cellulaire
- Immunopathologie et Chimie Thérapeutique
- 67000 Strasbourg
- France
| | - Alberto Bianco
- CNRS
- Institut de Biologie Moléculaire et Cellulaire
- Immunopathologie et Chimie Thérapeutique
- 67000 Strasbourg
- France
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24
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Dehshahri A, Sadeghpour H. Surface decorations of poly(amidoamine) dendrimer by various pendant moieties for improved delivery of nucleic acid materials. Colloids Surf B Biointerfaces 2015; 132:85-102. [DOI: 10.1016/j.colsurfb.2015.05.006] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2014] [Revised: 05/05/2015] [Accepted: 05/07/2015] [Indexed: 12/22/2022]
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25
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Yang J, Zhang Q, Chang H, Cheng Y. Surface-Engineered Dendrimers in Gene Delivery. Chem Rev 2015; 115:5274-300. [DOI: 10.1021/cr500542t] [Citation(s) in RCA: 307] [Impact Index Per Article: 34.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Jiepin Yang
- Shanghai
Key Laboratory of
Regulatory Biology, School of Life Sciences, East China Normal University, Shanghai 200241, P. R. China
| | - Qiang Zhang
- Shanghai
Key Laboratory of
Regulatory Biology, School of Life Sciences, East China Normal University, Shanghai 200241, P. R. China
| | - Hong Chang
- Shanghai
Key Laboratory of
Regulatory Biology, School of Life Sciences, East China Normal University, Shanghai 200241, P. R. China
| | - Yiyun Cheng
- Shanghai
Key Laboratory of
Regulatory Biology, School of Life Sciences, East China Normal University, Shanghai 200241, P. R. China
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26
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Dzmitruk V, Szulc A, Shcharbin D, Janaszewska A, Shcharbina N, Lazniewska J, Novopashina D, Buyanova M, Ionov M, Klajnert-Maculewicz B, Gómez-Ramirez R, Mignani S, Majoral JP, Muñoz-Fernández MA, Bryszewska M. Anticancer siRNA cocktails as a novel tool to treat cancer cells. Part (B). Efficiency of pharmacological action. Int J Pharm 2015; 485:288-94. [PMID: 25796120 DOI: 10.1016/j.ijpharm.2015.03.034] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2015] [Revised: 03/10/2015] [Accepted: 03/14/2015] [Indexed: 12/14/2022]
Abstract
This paper examines a perspective to use newly engineered nanomaterials as effective and safe carriers for gene therapy of cancer. Three different groups of cationic dendrimers (PAMAM, phosphorus, and carbosilane) were complexed with anticancer siRNA and the biophysical properties of the dendriplexes created were analyzed. The potential of the dendrimers as nanocarriers for anticancer Bcl-xl, Bcl-2, Mcl-1 siRNAs and additionally a scrambled sequence siRNA has been explored. Dendrimer/siRNA complexes were characterised by various methods including fluorescence, zeta potential, dynamic light scattering, circular dichroism, gel electrophoresis and transmission electron microscopy. In this part of study, the transfection of complexes in HeLa and HL-60 cells was analyzed using both single apoptotic siRNAs and a mixture (cocktail) of them. Cocktails were more effective than single siRNAs, allowing one to decrease siRNAs concentration in treating cells. The dendrimers were compared as siRNA carriers, the most effective being the phosphorus-based ones. However, they were also the most cytotoxic on their own, so that in this regard the application of all dendrimers in anticancer therapy will be discussed.
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Affiliation(s)
- Volha Dzmitruk
- Institute of Biophysics and Cell Engineering of NASB, Minsk, Belarus
| | - Aleksandra Szulc
- Department of General Biophysics, Faculty of Biology and Environmental Protection, University of Lodz, Lodz, Poland
| | - Dzmitry Shcharbin
- Institute of Biophysics and Cell Engineering of NASB, Minsk, Belarus.
| | - Anna Janaszewska
- Department of General Biophysics, Faculty of Biology and Environmental Protection, University of Lodz, Lodz, Poland
| | - Natallia Shcharbina
- Republican Research and Practical Center of Neurology and Neurosurgery, Minsk, Belarus
| | - Joanna Lazniewska
- Department of General Biophysics, Faculty of Biology and Environmental Protection, University of Lodz, Lodz, Poland
| | - Darya Novopashina
- Institute of Chemical Biology and Fundamental Medicine SB RAS, Novosibirsk, Russia
| | - Marina Buyanova
- Institute of Chemical Biology and Fundamental Medicine SB RAS, Novosibirsk, Russia
| | - Maksim Ionov
- Department of General Biophysics, Faculty of Biology and Environmental Protection, University of Lodz, Lodz, Poland.
| | - Barbara Klajnert-Maculewicz
- Department of General Biophysics, Faculty of Biology and Environmental Protection, University of Lodz, Lodz, Poland; Leibniz-Institut fur Polymerforschung Dresden e.V., HoheStrasse 6,01069 Dresden, Germany
| | - Rafael Gómez-Ramirez
- Departamento Química Orgánica y Química Inorgánica, Universidad de Alcalá, Alcalá de Henares, Spain; Networking Research Center on Bioengineering, Biomaterials and Nanomedicine, CIBER-BBN, Spain
| | - Serge Mignani
- Université Paris Descartes, PRES Sorbonne Paris Cité, CNRS UMR, 860, Paris, France
| | | | - Maria Angeles Muñoz-Fernández
- Networking Research Center on Bioengineering, Biomaterials and Nanomedicine, CIBER-BBN, Spain; Laboratorio de Inmunobiología Molecular, Hospital General Universitario Gregorio Marañón, Madrid, Spain
| | - Maria Bryszewska
- Department of General Biophysics, Faculty of Biology and Environmental Protection, University of Lodz, Lodz, Poland
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27
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Draghici B, Ilies MA. Synthetic Nucleic Acid Delivery Systems: Present and Perspectives. J Med Chem 2015; 58:4091-130. [DOI: 10.1021/jm500330k] [Citation(s) in RCA: 70] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Bogdan Draghici
- Department
of Pharmaceutical Sciences and Moulder Center for Drug Discovery Research, Temple University School of Pharmacy, 3307 North Broad Street, Philadelphia, Pennsylvania 19140, United States
| | - Marc A. Ilies
- Department
of Pharmaceutical Sciences and Moulder Center for Drug Discovery Research, Temple University School of Pharmacy, 3307 North Broad Street, Philadelphia, Pennsylvania 19140, United States
- Temple Materials Institute, 1803 North Broad Street, Philadelphia, Pennsylvania 19122, United States
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28
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Chi Z, Liu R, You H, Ma S, Cui H, Zhang Q. Probing the in vitro cytotoxicity of the veterinary drug oxytetracycline. PLoS One 2014; 9:e102334. [PMID: 25019386 PMCID: PMC4096727 DOI: 10.1371/journal.pone.0102334] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2014] [Accepted: 06/18/2014] [Indexed: 11/19/2022] Open
Abstract
The study investigated the effect of oxytetracycline (OTC) on the anti-oxidative defense system, the structure (hemolysis rate and morphology) and function (ATP enzyme activity) of human red blood cells (hRBCs) to investigate the possible toxic mechanism of OTC to hRBCs. The experimental results indicate that OTC can cause a decline in the function of the antioxidant defense system of hRBCs, resulting in oxidative stress. OTC can bring about morphological changes to hRBCs, and further leads to hemolysis, when the concentration of OTC is over 8×10(-5) M (about 164 µg/ml). At a low OTC concentration, below 4×10(-5) M (82 µg/ml), OTC can enhance the activity of ATP enzyme of hRBCs, known as hormesis. However, at a high concentration, above 4×10(-5) M (about 82 µg/ml), the ATP enzymatic activity was inhibited, affecting the function of hRBCs. The estalished mechanism of toxicity of OTC to hRBCs can facilitate a deeper understanding of the toxicity of OTC in vivo.
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Affiliation(s)
- Zhenxing Chi
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin, PR China
- School of Marine Science and Technology, Harbin Institute of Technology at Weihai, Weihai, PR China
| | - Rutao Liu
- School of Environmental Science and Engineering, Shandong University, Jinan, PR China
| | - Hong You
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin, PR China
- School of Marine Science and Technology, Harbin Institute of Technology at Weihai, Weihai, PR China
| | - Shanshan Ma
- School of Marine Science and Technology, Harbin Institute of Technology at Weihai, Weihai, PR China
| | - Hao Cui
- School of Marine Science and Technology, Harbin Institute of Technology at Weihai, Weihai, PR China
| | - Qiang Zhang
- School of Marine Science and Technology, Harbin Institute of Technology at Weihai, Weihai, PR China
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29
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How to study dendrimers and dendriplexes III. Biodistribution, pharmacokinetics and toxicity in vivo. J Control Release 2014; 181:40-52. [DOI: 10.1016/j.jconrel.2014.02.021] [Citation(s) in RCA: 83] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2014] [Revised: 02/21/2014] [Accepted: 02/22/2014] [Indexed: 12/15/2022]
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30
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Multi-armed poly(L-glutamic acid)-graft-polypropyleneinime as effective and serum resistant gene delivery vectors. Int J Pharm 2014; 465:444-54. [PMID: 24576809 DOI: 10.1016/j.ijpharm.2014.02.041] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2013] [Revised: 01/23/2014] [Accepted: 02/23/2014] [Indexed: 02/07/2023]
Abstract
A new series of multi-armed MP-g-PPI dendrimers were synthesized by polymerization of BLG-NCA using G2.0PPI as macromolecular initiator and subsequent aminolysis with G1.0PPI or G2.0PPI. The chemical structure and composition of the MP-g-PPI dendrimers were characterized by Fourier transform infrared spectroscopy (FT-IR) and nuclear magnetic resonance spectroscopy ((1)H NMR). The MP-g-PPI showed a great ability to combine with pDNA to form complexes, which protect the pDNA from nuclease degradation. Dynamic light scattering (DLS) measurement illustrated that the sizes of complexes were in range of 111-219 nm. The transmission electron microscope (TEM) and atomic force microscope (AFM) observation showed that the morphology of these complexes was spherical. The MTT assay demonstrated that cytotoxicity of the MP-g-PPI was lower than that of PEI 25K. The in vitro transfection test indicated that MP-g-PPI gene vectors displayed relative high transfection efficiency than that of PEI 25K and Lipofectamine 2000 in serum-containing medium. Furthermore, MP-g-PPI at the weight ratio of 7.5 displayed better serum-resistant capability than that of PEI 25K and Lipofectamine 2000. The above facts revealed that multi-armed MP-g-PPI dendrimers may be promising gene vectors with low cytotoxicity, high transfection efficiency and serum-resistant ability.
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31
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New views and insights into intracellular trafficking of drug-delivery systems by fluorescence fluctuation spectroscopy. Ther Deliv 2014; 5:173-88. [DOI: 10.4155/tde.13.148] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Biomaterials in the nanometer size range can be engineered for site-specific delivery of drugs after injection into the blood circulation. However, translation of such nanomedicines from the bench to the bedside is still hindered by many extracellular and intracellular barriers. To realize the concept of targeted drug delivery with nanomedicines, research groups are studying intensively the extra- and intra-cellular mechanisms involved as a response to the physicochemical properties of the nanomedicines. In this review, we highlight the contributions of fluorescence fluctuations spectroscopy techniques to better understand, and in turn to bypass, the major hurdles to therapeutic delivery, focusing mostly on the intracellular dynamics of drug-delivery systems.
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32
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Shcharbin D, Shakhbazau A, Bryszewska M. Poly(amidoamine) dendrimer complexes as a platform for gene delivery. Expert Opin Drug Deliv 2013; 10:1687-98. [PMID: 24168461 DOI: 10.1517/17425247.2013.853661] [Citation(s) in RCA: 78] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
INTRODUCTION Gene therapy is one of the most effective ways to treat major infectious diseases, cancer and genetic disorders. It is based on several viral and non-viral systems for nucleic acid delivery. The number of clinical trials based on application of non-viral drug and gene delivery systems is rapidly increasing. AREAS COVERED This review discusses and summarizes recent advances in poly(amidoamine) dendrimers as effective gene carriers in vitro and in vivo, and their advantages and disadvantages relative to viral vectors and other non-viral systems (liposomes, linear polymers) are considered. EXPERT OPINION In this regard, dendrimers are non-immunogenic and have the highest efficiency of transfection among other non-viral systems, and none of the drawbacks characteristic for viral systems. The toxicity of dendrimers both in vitro and in vivo is an important question that has been addressed on many occasions. Several non-toxic and efficient multifunctional dendrimer-based conjugates for gene delivery, along with modifications to improve transfection efficiency while decreasing cytotoxicity, are discussed. Twelve paradigms that affected the development of dendrimer-based gene delivery are described. The conclusion is that dendrimers are promising candidates for gene delivery, but this is just the beginning and further studies are required before using them in human gene therapy.
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Affiliation(s)
- Dzmitry Shcharbin
- Institute of Biophysics and Cell Engineering of NASB , Minsk , Belarus
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33
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Novel ‘SiC’ carbosilane dendrimers as carriers for anti-HIV nucleic acids: Studies on complexation and interaction with blood cells. Colloids Surf B Biointerfaces 2013; 109:183-9. [DOI: 10.1016/j.colsurfb.2013.03.045] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2013] [Revised: 03/22/2013] [Accepted: 03/27/2013] [Indexed: 01/30/2023]
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34
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Arima H, Motoyama K, Higashi T. Sugar-appended polyamidoamine dendrimer conjugates with cyclodextrins as cell-specific non-viral vectors. Adv Drug Deliv Rev 2013; 65:1204-14. [PMID: 23602906 DOI: 10.1016/j.addr.2013.04.001] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2012] [Revised: 03/26/2013] [Accepted: 04/10/2013] [Indexed: 12/31/2022]
Abstract
The widespread use of various cyclodextrin (CyD)-appended polymers and polyrotaxanes as gene carriers has been reported. Among the various polyamidoamine dendrimer (dendrimer) conjugates with CyDs (CDE), the dendrimer (G3) conjugate with α-CyD having an average degree of substitution (DS) of 2.4 (α-CDE (G3, DS 2)) displayed remarkable properties as DNA carriers. In an attempt to develop cell-specific gene transfer carriers, we prepared some sugar-appended α-CDEs, e.g. mannosylated, galactosylated, and lactosylated α-CDEs. In addition, PEGylated Lac-α-CDEs (G3) were prepared and evaluated as a hepatocyte-selective and serum-resistant gene transfer carrier. Moreover, PEGylated-α-CDE/CyD polypseudorotaxane systems for novel sustained DNA release system have been developed. Interestingly, glucronylglucosyl-β-cyclodextrin (GUG-β-CyD) conjugates with dendrimer (G2) (GUG-β-CDE (G2)) had superior gene transfer activity to α-CDE (G2), expecting a development of new series of sugar-appended CDEs over α-CDEs (G2). Collectively, sugar-appended α-CDEs have the potential as novel cell-specific and safe carriers for DNA.
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Affiliation(s)
- Hidetoshi Arima
- Graduate School of Pharmaceutical Sciences, Kumamoto University, 5-1Oe-honmachi, Chuo-ku, Kumamoto 862-0973, Japan.
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35
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Affiliation(s)
- Natallia Shcharbina
- Republican Research and Practical Center of Neurology and Neurosurgery, Minsk, Belarus
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36
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Dendrimer-enabled DNA delivery and transformation of Chlamydia pneumoniae. NANOMEDICINE-NANOTECHNOLOGY BIOLOGY AND MEDICINE 2013; 9:996-1008. [PMID: 23639679 DOI: 10.1016/j.nano.2013.04.004] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/07/2012] [Revised: 04/09/2013] [Accepted: 04/12/2013] [Indexed: 11/24/2022]
Abstract
UNLABELLED The chlamydiae are important human pathogens. Lack of a genetic manipulation system has impeded understanding of the molecular bases of virulence for these bacteria. We developed a dendrimer-enabled system for transformation of chlamydiae and used it to characterize the effects of inserting the C. trachomatis plasmid into C. pneumoniae, which lacks any plasmids. The plasmid was cloned into modified yeast vector pEG(KG) and the clone complexed to polyamidoamine dendrimers, producing 50-100 nm spherical particles. HEp-2 cell cultures were infected with C. pneumoniae strain AR-39. Twenty-four hours later, medium was replaced for 3 hours with dendrimer-plasmid complexes, then removed and the medium replaced. Cultures were harvested at various times post-transformation. Real-time PCR and RT-PCR of nucleic acids from transformed cultures demonstrated plasmid replication and gene expression. The cloned plasmid was replicated and expressed in transformants over 5 passages. This system will allow study of chlamydial gene function, allowing development of novel dendrimer-based therapies. FROM THE CLINICAL EDITOR This team of investigators developed a dendrimer-enabled system for transformation of chlamydiae and successfully utilized it to characterize the effects of inserting the C. trachomatis plasmid into C. pneumonia. This system will allow study of chlamydial gene function, allowing development of novel dendrimer-based therapies.
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Pan S, Cao D, Yi W, Huang H, Feng M. A biodegradable and serum-resistant gene delivery carrier composed of polyamidoamine–poly N,N′-di-(2-aminoethyl) aminoethyl glutamine copolymer. Colloids Surf B Biointerfaces 2013; 104:294-302. [DOI: 10.1016/j.colsurfb.2012.12.018] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2012] [Revised: 11/12/2012] [Accepted: 12/12/2012] [Indexed: 01/07/2023]
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38
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Li Z, Liu K, Sun P, Mei L, Hao T, Tian Y, Tang Z, Li L, Chen D. Poly(D, L-lactide-co-glycolide)/montmorillonite nanoparticles for improved oral delivery of exemestane. J Microencapsul 2013; 30:432-40. [DOI: 10.3109/02652048.2012.746749] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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39
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Kim MS, Oh GH, Kim MJ, Hwang JK. Fucosterol inhibits matrix metalloproteinase expression and promotes type-1 procollagen production in UVB-induced HaCaT cells. Photochem Photobiol 2013; 89:911-8. [PMID: 23418792 DOI: 10.1111/php.12061] [Citation(s) in RCA: 63] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2012] [Accepted: 02/11/2013] [Indexed: 11/30/2022]
Abstract
Ultraviolet (UV) radiation damages human skin and causes skin diseases such as epidermal hyperplasia, sunburn, inflammatory responses and photoaging. Photoaging is associated with upregulated matrix metalloproteinase (MMP) expression and downregulated collagen synthesis. Fucosterol, which is isolated from marine brown algae, has been reported to possess antioxidant and anticancer activities; however, its effects on photoaging are unknown. This study assessed the effects of fucosterol on photoaging and investigated its mechanisms of action in UV-irradiated immortalized human keratinocytes (HaCaT) by enzyme-linked immunosorbent assay, semi-quantitative reverse transcription-polymerase chain reaction, Western blot analysis and 2',7'-dichlorofluorescein diacetate assay. Our results showed that fucosterol attenuated UV-induced MMP and inflammatory cytokine expression by deactivating mitogen-activated protein kinases (MAPKs) induced by reactive oxygen species. Fucosterol also increased type-I procollagen and antioxidant enzyme expression. Taken together, fucosterol regulates the expression of MMPs and type-I procollagen in UV-irradiated HaCaT by modulating MAPK, suggesting it as a potential candidate for prevention and treatment of skin aging.
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Affiliation(s)
- Myung-Suk Kim
- Department of Biotechnology, College of Life Science and Biotechnology, Yonsei University, Seoul, Korea
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Pan S, Cao D, Huang H, Yi W, Qin L, Feng M. A Serum-Resistant Low-Generation Polyamidoamine with PEI 423 Outer Layer for Gene Delivery Vector. Macromol Biosci 2013; 13:422-36. [PMID: 23381904 DOI: 10.1002/mabi.201200255] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2012] [Revised: 11/15/2012] [Indexed: 12/24/2022]
Abstract
A new derivative of polyamidoamine and polyethylenimine, G2.5-PEI 423 or G1.5-PEI 423, is prepared by an amidation reaction of PAMAM G2.5 or PAMAM G1.5 using PEI 423. The polycations show a great ability to combine with pDNA to form complexes, which protect the pDNA from nuclease degradation. The polymers display stronger buffer capacity and lower cytotoxicity. The complexes have particle sizes of 120-180 nm and zeta potentials of 20-40 mV. The G2.5-PEI 423 complexes display much higher transfection efficiencies than PAMAM G5 and Lipo-2k, and the G1.5-PEI 423 complexes display higher transfection efficiencies than PAMAM G4 and PEI-25k. The complexes possess better serum-resistant capacity. The G2.5-PEI 423 has a great potential to be used as a serum-resistant gene vector.
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Affiliation(s)
- Shirong Pan
- The First Affiliated Hospital, Sun Yat-sen University, 58 Zhongshan 2 Road, Guangzhou 510080, P. R. China.
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41
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Du L, Jin Y, Yang J, Wang S, Wang X. A functionalized poly(amidoamine) nanocarrier-loading 5-fluorouracil. Anticancer Drugs 2013; 24:172-80. [DOI: 10.1097/cad.0b013e32835920fa] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Binsalamah ZM, Paul A, Prakash S, Shum-Tim D. Nanomedicine in cardiovascular therapy: recent advancements. Expert Rev Cardiovasc Ther 2013; 10:805-15. [PMID: 22894635 DOI: 10.1586/erc.12.41] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
Cardiovascular disease (CVD) is comprised of a group of disorders affecting the heart and blood vessels of the human body and is one of the leading causes of death worldwide. Current therapy for CVD is limited to the treatment of already established disease, and it includes pharmacological and/or surgical procedures, such as percutaneous coronary intervention with stenting and coronary artery bypass grafting. However, lots of complications have been raised with these modalities of treatment, including systemic toxicity with medication, stent thrombosis with percutaneous coronary intervention and nonsurgical candidate patients for coronary artery bypass grafting. Nanomedicine has emerged as a potential strategy in dealing with these obstacles. Applications of nanotechnology in medicine are already underway and offer tremendous promise. This review explores the recent developments of nanotechnology in the field of CVD and gives an insight into its potential for diagnostics and therapeutics applications. The authors also explore the characteristics of the widely used biocompatible nanomaterials for this purpose and evaluate their opportunities and challenges for developing novel nanobiotechnological tools with high efficacy for biomedical applications, such as radiological imaging, vascular implants, gene therapy, myocardial infarction and targeted delivery systems.
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Ternary Complexes with Core-Shell Bilayer for Double Level Targeted Gene Delivery: In Vitro and In Vivo Evaluation. Pharm Res 2012; 30:1215-27. [DOI: 10.1007/s11095-012-0960-9] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2012] [Accepted: 12/07/2012] [Indexed: 11/26/2022]
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de la Fuente M, Raviña M, Sousa-Herves A, Correa J, Riguera R, Fernandez-Megia E, Sánchez A, Alonso MJ. Exploring the efficiency of gallic acid-based dendrimers and their block copolymers with PEG as gene carriers. Nanomedicine (Lond) 2012; 7:1667-81. [DOI: 10.2217/nnm.12.51] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023] Open
Abstract
The synthesis of a new family of amino-functionalized gallic acid-triethylene glycol (GATG) dendrimers and their block copolymers with polyethylene glycol (PEG) has recently being disclosed. In addition, these dendrimers have shown potential for gene delivery applications, as they efficiently complex nucleic acids and form small and homogeneous dendriplexes. On this basis, the present study aimed to explore the interaction of the engineered dendriplexes with blood components, as well as their stability, cytotoxicity and ability to enter and transfect mammalian cells. Results show that GATG dendrimers can form stable dendriplexes, protect the associated pDNA from degradation, and are biocompatible with HEK-293T cells and erythrocytes. More importantly, dendriplexes are effectively internalized by HEK-293T cells, which are successfully transfected. Besides, PEGylation has a marked influence on the properties of the resulting dendriplexes. While PEGylated GATG dendrimers have improved biocompatibility, the long PEG chains limit their uptake by HEK-293T cells, and thus, their ability to transfect them. As a consequence, the degree of PEGylation in dendriplexes containing dendrimer/block copolymer mixtures emerges as an important parameter to be modulated in order to obtain an optimized stealth formulation able to effectively induce the expression of the encoded protein. Original submitted 29 November 2011; Revised submitted 8 March 2012; Published online 20 July 2012
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Affiliation(s)
- María de la Fuente
- Department of Pharmacy & Pharmaceutical Technology, Center for Molecular Medicine & Chronic Diseases, University of Santiago de Compostela, 15782 Santiago de Compostela, Spain
| | - Manuela Raviña
- Department of Pharmacy & Pharmaceutical Technology, School of Pharmacy, University of Santiago de Compostela, Spain
| | - Ana Sousa-Herves
- Department of Organic Chemistry, Center for Research in Biological Chemistry & Molecular Materials (CIQUS), University of Santiago de Compostela, Spain
| | - Juan Correa
- Department of Organic Chemistry, Center for Research in Biological Chemistry & Molecular Materials (CIQUS), University of Santiago de Compostela, Spain
| | - Ricardo Riguera
- Department of Organic Chemistry, Center for Research in Biological Chemistry & Molecular Materials (CIQUS), University of Santiago de Compostela, Spain
| | - Eduardo Fernandez-Megia
- Department of Organic Chemistry, Center for Research in Biological Chemistry & Molecular Materials (CIQUS), University of Santiago de Compostela, Spain
| | - Alejandro Sánchez
- Department of Pharmacy & Pharmaceutical Technology, School of Pharmacy, University of Santiago de Compostela, Spain
- Molecular Image Group, Instituto de Investigacion Sanitaria – Clinical Research Institute – of Santiago de Compostela (IDIS), Spain
| | - María José Alonso
- Department of Pharmacy & Pharmaceutical Technology, Center for Molecular Medicine & Chronic Diseases, University of Santiago de Compostela, 15782 Santiago de Compostela, Spain
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On the cellular processing of non-viral nanomedicines for nucleic acid delivery: Mechanisms and methods. J Control Release 2012; 161:566-81. [DOI: 10.1016/j.jconrel.2012.05.020] [Citation(s) in RCA: 117] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2011] [Revised: 05/11/2012] [Accepted: 05/11/2012] [Indexed: 11/24/2022]
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Shakhbazau A, Shcharbin D, Seviaryn I, Goncharova N, Kosmacheva S, Potapnev M, Bryszewska M, Kumar R, Biernaskie J, Midha R. Dendrimer-Driven Neurotrophin Expression Differs in Temporal Patterns between Rodent and Human Stem Cells. Mol Pharm 2012; 9:1521-8. [DOI: 10.1021/mp300041k] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Antos Shakhbazau
- Department
of Clinical Neurosciences,
Faculty of Medicine, University of Calgary, Calgary, Canada
- Hotchkiss
Brain Institute, University of Calgary,
Calgary, Canada
| | - Dzmitry Shcharbin
- Institute
of Biophysics and Cell
Engineering, National Academy of Sciences of Belarus, Minsk, Belarus
| | - Ihar Seviaryn
- Republic Centre for Hematology and Transfusiology, Minsk, Belarus
| | | | | | - Mihail Potapnev
- Republic Centre for Hematology and Transfusiology, Minsk, Belarus
| | - Maria Bryszewska
- Department of General Biophysics, University of Lodz, Lodz, Poland
| | - Ranjan Kumar
- Department
of Clinical Neurosciences,
Faculty of Medicine, University of Calgary, Calgary, Canada
- Hotchkiss
Brain Institute, University of Calgary,
Calgary, Canada
- Faculty of Veterinary Medicine, University of Calgary, Calgary, Canada
| | - Jeffrey Biernaskie
- Hotchkiss
Brain Institute, University of Calgary,
Calgary, Canada
- Faculty of Veterinary Medicine, University of Calgary, Calgary, Canada
| | - Rajiv Midha
- Department
of Clinical Neurosciences,
Faculty of Medicine, University of Calgary, Calgary, Canada
- Hotchkiss
Brain Institute, University of Calgary,
Calgary, Canada
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Albertazzi L, Fernandez-Villamarin M, Riguera R, Fernandez-Megia E. Peripheral functionalization of dendrimers regulates internalization and intracellular trafficking in living cells. Bioconjug Chem 2012; 23:1059-68. [PMID: 22482890 DOI: 10.1021/bc300079h] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
GATG (gallic acid-triethylene glycol) dendrimers represent appealing nanostructures for biomedical applications. The incorporation of specific ligands and targeting and imaging agents on their surface has resulted in promising tools in diagnosis and drug delivery. With the aim to further explore the versatility of GATG dendrimers in the biomedical field, in this work we study the effect of peripheral substitution on their uptake and intracellular trafficking in living cells. To this end, peripheral groups with different physicochemical properties and biological relevance have been installed on the surface of GATG dendrimers, and their interactions, uptake efficacy, and specificity for certain cell populations studied by confocal microscopy. Finally, this information was used to design a pH-sensitive drug delivery system for the selective release of cargo molecules inside cells after lysosomal localization. These results along with the easy functionalization and modular architecture of GATG dendrimers reveal these systems as promising nanotools in biomedicine.
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Affiliation(s)
- Lorenzo Albertazzi
- NEST , Scuola Normale Superiore and Istituto Nanoscienze-CNR, I-56127 Pisa, Italy
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Mishra MK, Gérard HC, Whittum-Hudson JA, Hudson AP, Kannan RM. Dendrimer-enabled modulation of gene expression in Chlamydia trachomatis. Mol Pharm 2012; 9:413-21. [PMID: 22263556 DOI: 10.1021/mp200512f] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
The obligate intracellular bacterium Chlamydia trachomatis is an important human pathogen. The genome of this organism is small but encodes many genes of currently unknown function that are thought to be involved in virulence. Lack of a system for genetic manipulation has been a key challenge to advancing the understanding of molecular genetics underlying virulence for this bacterium. We developed a dendrimer-enabled system for transformation of C. trachomatis, and used it to demonstrate the efficient and highly specific knockdown of transcript levels from targeted genes. Antisense, sense, and other control oligonucleotides targeting two sets of duplicated genes on the chlamydial chromosome were designed, commercially synthesized, and complexed with generation-4 polyamidoamine (PAMAM) dendrimers. The complexes were given to HEp-2 cell cultures infected for 16 h with C. trachomatis serovar K and then removed three hours later. Infected cultures were harvested 6 h after pulsing, and DNA and RNA/cDNA were prepared for assessment of transcript levels compared to those for the same genes in infected cultures, without dendrimer complexation. In all cases, the targeted gene complexed to dendrimer, but not its duplicate, showed up to 90% transcript attenuation. The duration of attenuation can be extended by repeated pulsing, and in some cases transcript levels from multiple genes can be attenuated in the same organism. This system will allow study of chlamydial gene function in pathogenesis, leading to more effective therapies to treat Chlamydia-induced diseases in a targeted manner.
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Affiliation(s)
- Manoj K Mishra
- Department of Chemical Engineering and Materials Science, School of Medicine, Wayne State University, Detroit, Michigan 48202, United States
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Short multi-armed polylysine-graft-polyamidoamine copolymer as efficient gene vectors. Int J Pharm 2011; 420:206-15. [DOI: 10.1016/j.ijpharm.2011.08.036] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2011] [Revised: 08/03/2011] [Accepted: 08/19/2011] [Indexed: 12/19/2022]
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50
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Amaral SP, Fernandez-Villamarin M, Correa J, Riguera R, Fernandez-Megia E. Efficient Multigram Synthesis of the Repeating Unit of Gallic Acid-Triethylene Glycol Dendrimers. Org Lett 2011; 13:4522-5. [DOI: 10.1021/ol201677k] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Sandra P. Amaral
- Department of Organic Chemistry and Center for Research in Biological Chemistry and Molecular Materials (CIQUS), University of Santiago de Compostela, Jenaro de la Fuente s/n, 15782 Santiago de Compostela, Spain
| | - Marcos Fernandez-Villamarin
- Department of Organic Chemistry and Center for Research in Biological Chemistry and Molecular Materials (CIQUS), University of Santiago de Compostela, Jenaro de la Fuente s/n, 15782 Santiago de Compostela, Spain
| | - Juan Correa
- Department of Organic Chemistry and Center for Research in Biological Chemistry and Molecular Materials (CIQUS), University of Santiago de Compostela, Jenaro de la Fuente s/n, 15782 Santiago de Compostela, Spain
| | - Ricardo Riguera
- Department of Organic Chemistry and Center for Research in Biological Chemistry and Molecular Materials (CIQUS), University of Santiago de Compostela, Jenaro de la Fuente s/n, 15782 Santiago de Compostela, Spain
| | - Eduardo Fernandez-Megia
- Department of Organic Chemistry and Center for Research in Biological Chemistry and Molecular Materials (CIQUS), University of Santiago de Compostela, Jenaro de la Fuente s/n, 15782 Santiago de Compostela, Spain
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