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Michlewska S, Garaiova Z, Šubjakova V, Hołota M, Kubczak M, Grodzicka M, Okła E, Naziris N, Balcerzak Ł, Ortega P, de la Mata FJ, Hianik T, Waczulikova I, Bryszewska M, Ionov M. Lipid-coated ruthenium dendrimer conjugated with doxorubicin in anti-cancer drug delivery: Introducing protocols. Colloids Surf B Biointerfaces 2023; 227:113371. [PMID: 37244201 DOI: 10.1016/j.colsurfb.2023.113371] [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: 04/04/2023] [Revised: 05/12/2023] [Accepted: 05/23/2023] [Indexed: 05/29/2023]
Abstract
One of the major limitations for the treatment of many diseases is an inability of drugs to cross the cell membrane barrier. Different kinds of carriers are being investigated to improve drug bioavailability. Among them, lipid or polymer-based systems are of special interest due to their biocompatibility. In our study, we combined dendritic and liposomal carriers and analysed the biochemical and biophysical properties of these formulations. Two preparation methods of Liposomal Locked-in Dendrimers (LLDs) systems have been established and compared. Carbosilane ruthenium metallodendrimer was complexed with an anti-cancer drug (doxorubicin) and locked in a liposomal structure, using both techniques. The LLDs systems formed by hydrophilic locking had more efficient transfection profiles and interacted with the erythrocyte membrane better than systems using the hydrophobic method. The results indicate these systems have improved transfection properties when compared to non-complexed components. The coating of dendrimers with lipids significantly reduced their hemotoxicity and cytotoxicity. The nanometric size, low polydispersity index and reduced positive zeta potential of such complexes made them attractive for future application in drug delivery. The formulations prepared by the hydrophobic locking protocol were not effective and will not be considered furthermore as prospective drug delivery systems. In contrast, the formulations formed by the hydrophilic loading method have shown promising results where the cytotoxicity of LLD systems with doxorubicin was more effective against cancer than normal cells.
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Affiliation(s)
- Sylwia Michlewska
- Laboratory of Microscopic Imaging & Specialized Biological Techniques. Faculty of Biology & Environmental Protection. University of Lodz, Banacha 12/16, Lodz 90-237, Poland.
| | - Zuzana Garaiova
- Department of Nuclear Physics and Biophysics, Faculty of Mathematics, Physics and Informatics, Comenius University, 842 48 Bratislava, Slovakia
| | - Veronika Šubjakova
- Department of Nuclear Physics and Biophysics, Faculty of Mathematics, Physics and Informatics, Comenius University, 842 48 Bratislava, Slovakia
| | - Marcin Hołota
- Department of General Biophysics. Faculty of Biology & Environmental Protection. University of Lodz, Pomorska 141/143, Lodz 90-236, Poland
| | - Małgorzata Kubczak
- Department of General Biophysics. Faculty of Biology & Environmental Protection. University of Lodz, Pomorska 141/143, Lodz 90-236, Poland
| | - Marika Grodzicka
- Department of General Biophysics. Faculty of Biology & Environmental Protection. University of Lodz, Pomorska 141/143, Lodz 90-236, Poland
| | - Elżbieta Okła
- Department of General Biophysics. Faculty of Biology & Environmental Protection. University of Lodz, Pomorska 141/143, Lodz 90-236, Poland
| | - Nikolaos Naziris
- Department of General Biophysics. Faculty of Biology & Environmental Protection. University of Lodz, Pomorska 141/143, Lodz 90-236, Poland; Section of Pharmaceutical Technology, Department of Pharmacy, School of Health Sciences, National and Kapodistrian University of Athens, Panepistimiopolis-Zografou, Athens 15771, Greece
| | - Łucja Balcerzak
- Laboratory of Microscopic Imaging & Specialized Biological Techniques. Faculty of Biology & Environmental Protection. University of Lodz, Banacha 12/16, Lodz 90-237, Poland
| | - Paula Ortega
- Networking Research Center on Bioengineering. Biomaterials &Nanomedicine (CIBER-BBN), Monforte de Lemos 3-5, Pabell on 11, Planta 028029, Madrid, Spain; 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
| | - Francisco Javier de la Mata
- Networking Research Center on Bioengineering. Biomaterials &Nanomedicine (CIBER-BBN), Monforte de Lemos 3-5, Pabell on 11, Planta 028029, Madrid, Spain; 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
| | - Tibor Hianik
- Department of Nuclear Physics and Biophysics, Faculty of Mathematics, Physics and Informatics, Comenius University, 842 48 Bratislava, Slovakia
| | - Iveta Waczulikova
- Department of Nuclear Physics and Biophysics, Faculty of Mathematics, Physics and Informatics, Comenius University, 842 48 Bratislava, Slovakia
| | - Maria Bryszewska
- Department of General Biophysics. Faculty of Biology & Environmental Protection. University of Lodz, Pomorska 141/143, Lodz 90-236, Poland
| | - Maksim Ionov
- Department of General Biophysics. Faculty of Biology & Environmental Protection. University of Lodz, Pomorska 141/143, Lodz 90-236, Poland
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Michlewska S, Maly M, Wójkowska D, Karolczak K, Skiba E, Hołota M, Kubczak M, Ortega P, Watala C, Javier de la Mata F, Bryszewska M, Ionov M. Carbosilane ruthenium metallodendrimer as alternative anti-cancer drug carrier in triple negative breast cancer mouse model: A preliminary study. Int J Pharm 2023; 636:122784. [PMID: 36858135 DOI: 10.1016/j.ijpharm.2023.122784] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Revised: 02/22/2023] [Accepted: 02/23/2023] [Indexed: 03/03/2023]
Abstract
The carbosilane metallodendrimer G1-[[NCPh(o-N)Ru(η6- p-cymene)Cl]Cl]4 (CRD13), based on an arene Ru(II) complex coordinated to imino-pyridine surface groups, has been conjugated with anti-cancer drugs. Ruthenium in the positively-charged dendrimer structure allows this nanoparticle to be considered as an anticancer drug carrier, made more efficient because ruthenium has anticancer properties. The ability of CRD13 to form complexes with Doxorubicin (DOX), 5-Fluorouracil (5-Fu), and Methotrexate (MTX) has been evaluated using zeta potential measurement, transmission electron microscopy (TEM) and computer simulation. The results show that it forms stable nanocomplexes with all those drugs, enhancing their effectiveness against MDA-MB-231 cancer cells. In vivo tests indicate that the CRD13/DOX system caused a decrease of tumor weight in mice with triple negative breast cancer. However, the tumors were most visibly reduced when naked dendrimers were injected.
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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.
| | - Marek Maly
- Department of Physics, Faculty of Science, J.E. Purkyně University in Ústí nad Labem, Pasteurova 15, 400 96 Ústí nad Labem, Czech Republic
| | - Dagmara Wójkowska
- Department of Haemostatic Disorders, Faculty of Health Sciences, Medical University of Lodz, Mazowiecka st. 6/8, 92-215 Lodz, Poland
| | - Kamil Karolczak
- Department of Haemostatic Disorders, Faculty of Health Sciences, Medical University of Lodz, Mazowiecka st. 6/8, 92-215 Lodz, Poland
| | - Elżbieta Skiba
- Institute of General and Ecological Chemistry, Lodz University of Technology, Żeromskiego 116, 90-924 Łódź, Poland
| | - Marcin Hołota
- Department of General Biophysics, Faculty of Biology and Environmental Protection, University of Lodz, Poland
| | - Małgorzata Kubczak
- Department of General Biophysics, Faculty of Biology and Environmental Protection, University of Lodz, Poland
| | - Paula Ortega
- Universidad de Alcalá, Department of Organic and Inorganic Chemistry, and Research Institute in Chemistry "Andrés M. del Río" (IQAR), Madrid, Spain; Instituto de Investigación Sanitaria Ramón y Cajal, IRYCIS, Spain
| | - Cezary Watala
- Department of Haemostatic Disorders, Faculty of Health Sciences, Medical University of Lodz, Mazowiecka st. 6/8, 92-215 Lodz, Poland
| | - F Javier de la Mata
- Universidad de Alcalá, Department of Organic and Inorganic Chemistry, and 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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Li P, Wang L, Sun M, Yao J, Li W, Lu W, Zhou Y, Zhang G, Hu C, Zheng W, Wei F. Binding affinity and conformation of a conjugated AS1411 aptamer at a cationic lipid bilayer interface. Phys Chem Chem Phys 2022; 24:9018-9028. [PMID: 35381056 DOI: 10.1039/d1cp05753g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Aptamers have been widely used in the detection, diagnosis, and treatment of cancer. Owing to their special binding affinity toward cancer-related biomarkers, aptamers can be used for targeted drug delivery or bio-sensing/bio-imaging in various scenarios. The interfacial properties of aptamers play important roles in controlling the surface charge, recognition efficiency, and binding affinity of drug-delivering lipid-based carriers. In this research, the interfacial behaviors, such as surface orientation, molecular conformation, and adsorption kinetics of conjugated AS1411 molecules at different cationic lipid bilayer interfaces were investigated by sum frequency generation vibrational spectroscopy (SFG-VS) in situ and in real-time. It is shown that the conjugated AS1411 molecules at the DMTAP bilayer interface show a higher binding affinity but with slower binding kinetics compared to the DMDAP bilayer interface. The analysis results also reveal that the thymine residues of cholesteryl conjugated AS1411 molecules show higher conformational ordering compared to the thymine residues of the alkyl chain conjugated AS1411 molecules. These understandings provide unique molecular insight into the aptamer-lipid membrane interactions, which may help researchers to improve the efficiency and safety of aptamer-related drug delivery systems.
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Affiliation(s)
- Penghua Li
- Key Laboratory of Optoelectronic Chemical Materials and Devices, Ministry of Education, & School of Optoelectronic Materials and Technology, Jianghan University, Wuhan 430056, China.
| | - Liqun Wang
- Key Laboratory of Optoelectronic Chemical Materials and Devices, Ministry of Education, & School of Optoelectronic Materials and Technology, Jianghan University, Wuhan 430056, China.
| | - Meng Sun
- Key Laboratory of Optoelectronic Chemical Materials and Devices, Ministry of Education, & School of Optoelectronic Materials and Technology, Jianghan University, Wuhan 430056, China.
| | - Jiyuan Yao
- Key Laboratory of Optoelectronic Chemical Materials and Devices, Ministry of Education, & School of Optoelectronic Materials and Technology, Jianghan University, Wuhan 430056, China.
| | - Wenhui Li
- Key Laboratory of Optoelectronic Chemical Materials and Devices, Ministry of Education, & School of Optoelectronic Materials and Technology, Jianghan University, Wuhan 430056, China. .,Institution for Interdisciplinary Research, Jianghan University, Wuhan, Hubei, 430056, China
| | - Wangting Lu
- Key Laboratory of Optoelectronic Chemical Materials and Devices, Ministry of Education, & School of Optoelectronic Materials and Technology, Jianghan University, Wuhan 430056, China. .,Institution for Interdisciplinary Research, Jianghan University, Wuhan, Hubei, 430056, China
| | - Youhua Zhou
- Key Laboratory of Optoelectronic Chemical Materials and Devices, Ministry of Education, & School of Optoelectronic Materials and Technology, Jianghan University, Wuhan 430056, China.
| | - Geng Zhang
- Department of Chemistry, College of Science, Huazhong Agricultural University, No. 1, Shizishan Street, Wuhan 430070, China
| | - Chenglong Hu
- Key Laboratory of Optoelectronic Chemical Materials and Devices, Ministry of Education, & School of Optoelectronic Materials and Technology, Jianghan University, Wuhan 430056, China.
| | - Wanquan Zheng
- Institution for Interdisciplinary Research, Jianghan University, Wuhan, Hubei, 430056, China.,Institut des Sciences Moléculaires d'Orsay, Université Paris-Sud, 91405 Orsay Cedex, France
| | - Feng Wei
- Key Laboratory of Optoelectronic Chemical Materials and Devices, Ministry of Education, & School of Optoelectronic Materials and Technology, Jianghan University, Wuhan 430056, China. .,Institution for Interdisciplinary Research, Jianghan University, Wuhan, Hubei, 430056, China
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Bolhassani A, Milani A. Small Interfering RNAs and their Delivery Systems: A Novel Powerful Tool for the Potential Treatment of HIV Infections. Curr Mol Pharmacol 2021; 13:173-181. [PMID: 31760929 DOI: 10.2174/1874467212666191023120954] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2019] [Revised: 10/12/2019] [Accepted: 10/15/2019] [Indexed: 12/15/2022]
Abstract
Small interfering RNAs (siRNAs) have rapidly developed into biomedical research as a novel tool for the potential treatment of various human diseases. They are based on altered gene expression. In spite of the availability of highly active antiretroviral therapy (HAART), there is a specific interest in developing siRNAs as a therapeutic agent for human immunodeficiency virus (HIV) due to several problems including toxicity and drug resistance along with long term treatment. The successful use of siRNAs for therapeutic goals needs safe and effective delivery to specific cells and tissues. Indeed, the efficiency of gene silencing depends on the potency of the carrier used for siRNA delivery. The combination of siRNA and nano-carriers is a potent method to prevent the limitations of siRNA formulation. Three steps were involved in non-viral siRNA carriers such as the complex formation of siRNA with a cationic carrier, conjugation of siRNA with small molecules, and encapsulation of siRNA within nanoparticles. In this mini-review, the designed siRNAs and their carriers are described against HIV-1 infections both in vitro and in vivo.
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Affiliation(s)
- Azam Bolhassani
- Department of Hepatitis and AIDS, Pasteur Institute of Iran, Tehran, Iran
| | - Alireza Milani
- Department of Hepatitis and AIDS, Pasteur Institute of Iran, Tehran, Iran.,Iranian Comprehensive Hemophilia Care Center, Tehran, Iran
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Copper (II) Metallodendrimers Combined with Pro-Apoptotic siRNAs as a Promising Strategy Against Breast Cancer Cells. Pharmaceutics 2020; 12:pharmaceutics12080727. [PMID: 32748821 PMCID: PMC7464408 DOI: 10.3390/pharmaceutics12080727] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2020] [Revised: 07/25/2020] [Accepted: 07/31/2020] [Indexed: 12/19/2022] Open
Abstract
Cancer treatment with small interfering RNA (siRNA) is one of the most promising new strategies; however, transfection systems that increase its bioavailability and ensure its delivery to the target cell are necessary. Transfection systems may be just vehicular or could contain fragments with anticancer activity that achieves a synergistic effect with siRNA. Cationic carbosilane dendrimers have proved to be powerful tools as non-viral vectors for siRNA in cancer treatment, and their activity might be potentiated by the inclusion of metallic complexes in its dendritic structure. We have herein explored the interaction between Schiff-base carbosilane copper (II) metallodendrimers, and pro-apoptotic siRNAs. The nanocomplexes formed by metallodendrimers and different siRNA have been examined for their zeta potential and size, and by transmission electron microscopy, fluorescence polarisation, circular dichroism, and electrophoresis. The internalisation of dendriplexes has been estimated by flow cytometry and confocal microscopy in a human breast cancer cell line (MCF-7), following the ability of these metallodendrimers to deliver the siRNA into the cell. Finally, in vitro cell viability experiments have indicated effective interactions between Cu (II) dendrimers and pro-apoptotic siRNAs: Mcl-1 and Bcl-2 in breast cancer cells. Combination of the first-generation derivatives with chloride counterions and with siRNA increases the anticancer activity of the dendriplex constructs and makes them a promising non-viral vector.
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Silver Nanoparticles Surface-Modified with Carbosilane Dendrons as Carriers of Anticancer siRNA. Int J Mol Sci 2020; 21:ijms21134647. [PMID: 32629868 PMCID: PMC7370058 DOI: 10.3390/ijms21134647] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2020] [Revised: 06/20/2020] [Accepted: 06/27/2020] [Indexed: 02/07/2023] Open
Abstract
Gene therapy is a promising approach in cancer treatment; however, current methods have a number of limitations mainly due to the difficulty in delivering therapeutic nucleic acids to their sites of action. The application of non-viral carriers based on nanomaterials aims at protecting genetic material from degradation and enabling its effective intracellular transport. We proposed the use of silver nanoparticles (AgNPs) surface-modified with carbosilane dendrons as carriers of anticancer siRNA (siBcl-xl). Using gel electrophoresis, zeta potential and hydrodynamic diameter measurements, as well as transmission electron microscopy, we characterized AgNP:siRNA complexes and demonstrated the stability of nucleic acid in complexes in the presence of RNase. Hemolytic properties of free silver nanoparticles and complexes, their effect on lymphocyte proliferation and cytotoxic activity on HeLa cells were also examined. Confocal microscopy proved the effective cellular uptake of complexes, indicating the possible use of this type of silver nanoparticles as carriers of genetic material in gene therapy.
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Gorzkiewicz M, Kopeć O, Janaszewska A, Konopka M, Pędziwiatr-Werbicka E, Tarasenko II, Bezrodnyi VV, Neelov IM, Klajnert-Maculewicz B. Poly(lysine) Dendrimers Form Complexes with siRNA and Provide Its Efficient Uptake by Myeloid Cells: Model Studies for Therapeutic Nucleic Acid Delivery. Int J Mol Sci 2020; 21:E3138. [PMID: 32365579 PMCID: PMC7246632 DOI: 10.3390/ijms21093138] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2020] [Revised: 04/19/2020] [Accepted: 04/27/2020] [Indexed: 12/28/2022] Open
Abstract
The disruption of the cellular pathways of protein biosynthesis through the mechanism of RNA interference has been recognized as a tool of great diagnostic and therapeutic significance. However, in order to fully exploit the potential of this phenomenon, efficient and safe carriers capable of overcoming extra- and intracellular barriers and delivering siRNA to the target cells are needed. Recently, attention has focused on the possibility of the application of multifunctional nanoparticles, dendrimers, as potential delivery devices for siRNA. The aim of the present work was to evaluate the formation of dendriplexes using novel poly(lysine) dendrimers (containing lysine and arginine or histidine residues in their structure), and to verify the hypothesis that the use of these polymers may allow an efficient method of siRNA transfer into the cells in vitro to be obtained. The fluorescence polarization studies, as well as zeta potential and hydrodynamic diameter measurements were used to characterize the dendrimer:siRNA complexes. The cytotoxicity of dendrimers and dendriplexes was evaluated with the resazurin-based assay. Using the flow cytometry technique, the efficiency of siRNA transport to the myeloid cells was determined. This approach allowed us to determine the properties and optimal molar ratios of dendrimer:siRNA complexes, as well as to demonstrate that poly(lysine) dendrimers may serve as efficient carriers of genetic material, being much more effective than the commercially available transfection agent Lipofectamine 2000. This outcome provides the basis for further research on the application of poly(lysine) dendrimers as carriers for nucleic acids in the field of gene therapy.
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Affiliation(s)
- Michał Gorzkiewicz
- Department of General Biophysics, Faculty of Biology and Environmental Protection, University of Lodz, 141/143 Pomorska St., 90-236 Lodz, Poland; (M.G.); (O.K.); (A.J.); (M.K.); (E.P.-W.)
| | - Olga Kopeć
- Department of General Biophysics, Faculty of Biology and Environmental Protection, University of Lodz, 141/143 Pomorska St., 90-236 Lodz, Poland; (M.G.); (O.K.); (A.J.); (M.K.); (E.P.-W.)
| | - Anna Janaszewska
- Department of General Biophysics, Faculty of Biology and Environmental Protection, University of Lodz, 141/143 Pomorska St., 90-236 Lodz, Poland; (M.G.); (O.K.); (A.J.); (M.K.); (E.P.-W.)
| | - Małgorzata Konopka
- Department of General Biophysics, Faculty of Biology and Environmental Protection, University of Lodz, 141/143 Pomorska St., 90-236 Lodz, Poland; (M.G.); (O.K.); (A.J.); (M.K.); (E.P.-W.)
| | - Elżbieta Pędziwiatr-Werbicka
- Department of General Biophysics, Faculty of Biology and Environmental Protection, University of Lodz, 141/143 Pomorska St., 90-236 Lodz, Poland; (M.G.); (O.K.); (A.J.); (M.K.); (E.P.-W.)
| | - Irina I. Tarasenko
- Institute of Macromolecular Compounds, Russian Academy of Sciences, Bolshoi Prospect 31, V.O., 199004 St. Petersburg, Russia;
| | - Valeriy V. Bezrodnyi
- Department of Physics, St. Petersburg State University (SPbSU), 7/9 Universitetskaya nab., 199034 St. Petersburg, Russia;
- Institute of Bioengineering, St. Petersburg National Research University of Information Technologies, Mechanics and Optics (ITMO University), Kronverkskiy pr. 49, 197101 St. Petersburg, Russia;
| | - Igor M. Neelov
- Institute of Bioengineering, St. Petersburg National Research University of Information Technologies, Mechanics and Optics (ITMO University), Kronverkskiy pr. 49, 197101 St. Petersburg, Russia;
| | - Barbara Klajnert-Maculewicz
- Department of General Biophysics, Faculty of Biology and Environmental Protection, University of Lodz, 141/143 Pomorska St., 90-236 Lodz, Poland; (M.G.); (O.K.); (A.J.); (M.K.); (E.P.-W.)
- Leibniz-Institut für Polymerforschung Dresden e.V., 6 Hohe St., 01069 Dresden, Germany
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Pedziwiatr-Werbicka E, Milowska K, Dzmitruk V, Ionov M, Shcharbin D, Bryszewska M. Dendrimers and hyperbranched structures for biomedical applications. Eur Polym J 2019. [DOI: 10.1016/j.eurpolymj.2019.07.013] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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Heitz M, Javor S, Darbre T, Reymond JL. Stereoselective pH Responsive Peptide Dendrimers for siRNA Transfection. Bioconjug Chem 2019; 30:2165-2182. [PMID: 31398014 DOI: 10.1021/acs.bioconjchem.9b00403] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Transfecting nucleic acids into cells is an essential procedure in biological research usually performed using nonviral transfection reagents. Unfortunately, most transfection reagents have polymeric or undisclosed structures and require nonstandard synthetic procedures. Herein we report peptide dendrimers accessible as pure products from standard building blocks by solid-phase peptide synthesis and acting as nontoxic single component siRNA transfection reagents for a variety of cell lines with equal or better performance than the gold standard lipofectamine L2000. Structure-activity relationships and mechanistic studies illuminate their transfection mechanism in unprecedented detail. Stereoselective dendrimer aggregation via intermolecular β-sheets at neutral pH enables siRNA complexation to form nanoparticles which enter cells by endocytosis. Endosome acidification triggers protonation of amino termini and rearrangement to an α-helical conformation forming smaller dendrimer/siRNA nanoparticles, which escape the endosome and release their siRNA cargo in the cytosol. Two particularly efficient d-enantiomeric dendrimers are proposed as new reference reagents for siRNA transfection.
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Affiliation(s)
- Marc Heitz
- Department of Chemistry and Biochemistry , University of Bern , Freiestrasse 3 , 3012 Bern , Switzerland
| | - Sacha Javor
- Department of Chemistry and Biochemistry , University of Bern , Freiestrasse 3 , 3012 Bern , Switzerland
| | - Tamis Darbre
- Department of Chemistry and Biochemistry , University of Bern , Freiestrasse 3 , 3012 Bern , Switzerland
| | - Jean-Louis Reymond
- Department of Chemistry and Biochemistry , University of Bern , Freiestrasse 3 , 3012 Bern , Switzerland
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Jafari Iri Sofla F, Rahbarizadeh F, Ahmadvand D, Nomani A, Vernet E. Anti–HER2 single domain antibody-conjugated dendrimers for targeted delivery of truncated-Bid transgene to breast cancer cells. J BIOACT COMPAT POL 2018. [DOI: 10.1177/0883911518813677] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Affiliation(s)
- Farnoush Jafari Iri Sofla
- Department of Medical Biotechnology, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
| | - Fatemeh Rahbarizadeh
- Department of Medical Biotechnology, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
| | - Davoud Ahmadvand
- School of Allied Medical Sciences, Iran University of Medical Sciences, Tehran, Iran
| | - Alireza Nomani
- Department of Pharmaceutics, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, NJ, USA
| | - Erik Vernet
- The Novo Nordisk Foundation Center for Protein Research, Faculty of Health Sciences, University of Copenhagen, Copenhagen, Denmark
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11
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Uribe-Cerda S, Morselli E, Perez-Leighton C. Updates on the neurobiology of food reward and their relation to the obesogenic environment. Curr Opin Endocrinol Diabetes Obes 2018; 25:292-297. [PMID: 30063551 DOI: 10.1097/med.0000000000000427] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
PURPOSE OF REVIEW To summarize recent findings about the neurobiological control of food reward and discuss their relevance for hedonic food intake and obesity in our current obesogenic environment. RECENT FINDINGS Recent data show new roles for circuits involving neuronal subpopulations within the central amyglada (CeA) and lateral hypothalamus in the regulation of feeding and reward in rodents under free and operant conditions and also in restrain from reward consumption. Recent work also shows that the orbitofrontal cortex (OFC) codes for subjective perception of food features during reward assessment of individual foods and that activity in the nucleus accumbens (NAc) codes for anticipation for reward, which can be blocked by time-locked neurostimulation of NAc. SUMMARY New data illustrates that different aspects of hedonic intake and food reward are coded in a distributed brain network. In particular, as our obesogenic environment facilitates access to palatable food and promotes cue-induced feeding, neuronal circuits related to control of impulsivity, food valuation and duration of hedonic intake episodes might have a significant role in our ability to control food intake and development of obesity by excess intake.
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Affiliation(s)
- Sofia Uribe-Cerda
- Department of Physiology, Faculty of Biological Sciences, Pontificia Universidad Catolica de Chile, Santiago, Chile
| | - Eugenia Morselli
- Department of Physiology, Faculty of Biological Sciences, Pontificia Universidad Catolica de Chile, Santiago, Chile
| | - Claudio Perez-Leighton
- Department of Physiology, Faculty of Biological Sciences, Pontificia Universidad Catolica de Chile, Santiago, Chile
- Food Science and Nutrition Department, University of Minnesota, Minneapolis, Minnesota, USA
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12
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Wrobel D, Kubikova R, Müllerová M, Strašák T, RůŽička K, Fulem M, Maly J. Phosphonium carbosilane dendrimers - interaction with a simple biological membrane model. Phys Chem Chem Phys 2018; 20:14753-14764. [PMID: 29775190 DOI: 10.1039/c7cp07237f] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The influence of three generations of five different phosphonium carbosilane dendrimers and one ammonium carbosilane dendrimer as a reference (PMe3, PBu3, P(Et2)2(CH2)3OH, PPh3, P(MeOPh)3 and NMe3, peripheral functional groups) on dimyristoylphosphatidylcholine (DMPC) or a lipid mixture dimyristoylphosphatidylcholine/dimyristoylphosphatidylglycerol (DMPC/DMPG) of liposomes was studied by fluorescence polarization measurements and differential scanning calorimetry. All types of dendrimers interacted with neutral as well as negatively charged liposomes, but the strength and observed influence were different. Concentration, type of peripheral functional group modification and dendrimer generation were the main factors influencing the interaction. Generally, weak interactions as well as destabilization of the lipid membranes at low concentrations, regardless of liposome type, were observed in the case of DmPMe3, DmNMe3, DmPBu3 and DmP(Et2)2(CH2)3OH. Dendrimers with PPh3 and P(MeOPh)3 peripheral functional groups interacted much more strongly and increased the rigidity of liposomes. Electrostatic interactions, the hydrophobicity of substituents and charge shielding on the peripheral phosphonium group are important factors in the interaction. We suggest that, among the other types of dendrimers, the dendrimer with the P(MeOPh)3 peripheral functional group is a highly promising candidate for the design of a drug delivery system due to its positive charge, efficient interaction with lipidic membranes and low cytotoxicity.
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Affiliation(s)
- Dominika Wrobel
- Department of Biology, Jan Evangelista Purkinje University, Ceske mladeze 8, 400 96 Usti nad Labem, Czech Republic.
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Pentaglycine lipid derivates – rp-HPLC analytics for bioorthogonal anchor molecules in targeted, multiple-composite liposomal drug delivery systems. Int J Pharm 2018; 547:602-610. [DOI: 10.1016/j.ijpharm.2018.05.052] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2018] [Revised: 05/19/2018] [Accepted: 05/21/2018] [Indexed: 11/17/2022]
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Study of non-covalent interactions on dendriplex formation: Influence of hydrophobic, electrostatic and hydrogen bonds interactions. Colloids Surf B Biointerfaces 2018; 162:380-388. [DOI: 10.1016/j.colsurfb.2017.12.009] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2017] [Revised: 11/10/2017] [Accepted: 12/07/2017] [Indexed: 11/20/2022]
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Michlewska S, Ionov M, Maroto-Díaz M, Szwed A, Ihnatsyeu-Kachan A, Loznikova S, Shcharbin D, Maly M, Ramirez RG, de la Mata FJ, Bryszewska M. Ruthenium dendrimers as carriers for anticancer siRNA. J Inorg Biochem 2018; 181:18-27. [PMID: 29353086 DOI: 10.1016/j.jinorgbio.2018.01.001] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2017] [Revised: 12/29/2017] [Accepted: 01/07/2018] [Indexed: 12/27/2022]
Abstract
Dendrimers, which are considered as one of the most promising tools in the field of nanobiotechnology due to their structural organization, showed a great potential in gene therapy, drug delivery, medical imaging and as antimicrobial and antiviral agents. This article is devoted to study interactions between new carbosilane-based metallodendrimers containing ruthenium and anti-cancer small interfering RNA (siRNA). Formation of complexes between anti-cancer siRNAs and Ru-based carbosilane dendrimers was evaluated by transmission electron microscopy, circular dichroism and fluorescence. The zeta-potential and the size of dendriplexes were determined by dynamic light scattering. The internalization of dendriplexes were estimated using HL-60 cells. Results show that ruthenium dendrimers associated with anticancer siRNA have the ability to deliver siRNA as non-viral vectors into the cancer cells. Moreover, dendrimers can protect siRNA against nuclease degradation. Nevertheless, further research need to be performed to examine the therapeutic potential of ruthenium dendrimers as well as dendrimers complexed with siRNA and anticancer drugs towards cancer cells.
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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, Banacha12/16, 90-237 Lodz, Poland; Department of General Biophysics, University of Lodz, Pomorska 141/143, 90-236 Lodz, Poland
| | - Maksim Ionov
- Department of General Biophysics, University of Lodz, Pomorska 141/143, 90-236 Lodz, Poland.
| | - Marta Maroto-Díaz
- Departamento Química Orgánica y Química Inorganica, Universidad de Alcala de Henares, Spain; Networking Research Center on Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Spain
| | - Aleksandra Szwed
- Department of General Biophysics, University of Lodz, Pomorska 141/143, 90-236 Lodz, Poland
| | | | - Svetlana Loznikova
- Institute of Biophysics and Cell Engineering of NASB, Akademicheskaja 27, Minsk 220072, Belarus
| | - Dzmitry Shcharbin
- Institute of Biophysics and Cell Engineering of NASB, Akademicheskaja 27, Minsk 220072, Belarus
| | - Marek Maly
- Department of Physics, Faculty of Science, J. E. Purkinje University in Ústí nad Labem, Ústí nad Labem, Czech Republic
| | - Rafael Gomez Ramirez
- Departamento Química Orgánica y Química Inorganica, Universidad de Alcala de Henares, Spain; Networking Research Center on Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Spain
| | - Francisco Javier de la Mata
- Departamento Química Orgánica y Química Inorganica, Universidad de Alcala de Henares, Spain; Networking Research Center on Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Spain
| | - Maria Bryszewska
- Department of General Biophysics, University of Lodz, Pomorska 141/143, 90-236 Lodz, Poland
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Palmerston Mendes L, Pan J, Torchilin VP. Dendrimers as Nanocarriers for Nucleic Acid and Drug Delivery in Cancer Therapy. Molecules 2017; 22:E1401. [PMID: 28832535 PMCID: PMC5600151 DOI: 10.3390/molecules22091401] [Citation(s) in RCA: 336] [Impact Index Per Article: 48.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2017] [Revised: 08/18/2017] [Accepted: 08/21/2017] [Indexed: 01/09/2023] Open
Abstract
Dendrimers are highly branched polymers with easily modifiable surfaces. This makes them promising structures for functionalization and also for conjugation with drugs and DNA/RNA. Their architecture, which can be controlled by different synthesis processes, allows the control of characteristics such as shape, size, charge, and solubility. Dendrimers have the ability to increase the solubility and bioavailability of hydrophobic drugs. The drugs can be entrapped in the intramolecular cavity of the dendrimers or conjugated to their functional groups at their surface. Nucleic acids usually form complexes with the positively charged surface of most cationic dendrimers and this approach has been extensively employed. The presence of functional groups in the dendrimer's exterior also permits the addition of other moieties that can actively target certain diseases and improve delivery, for instance, with folate and antibodies, now widely used as tumor targeting strategies. Dendrimers have been investigated extensively in the medical field, and cancer treatment is one of the greatest areas where they have been most used. This review will consider the main types of dendrimer currently being explored and how they can be utilized as drug and gene carriers and functionalized to improve the delivery of cancer therapy.
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Affiliation(s)
- Livia Palmerston Mendes
- Center for Pharmaceutical Biotechnology and Nanomedicine, Northeastern University, Boston, MA 02115, USA.
- CAPES Foundation, Ministry of Education of Brazil, Brasilia 70040-020, Brazil.
| | - Jiayi Pan
- Center for Pharmaceutical Biotechnology and Nanomedicine, Northeastern University, Boston, MA 02115, USA.
| | - Vladimir P Torchilin
- Center for Pharmaceutical Biotechnology and Nanomedicine, Northeastern University, Boston, MA 02115, USA.
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Lombardo D, Calandra P, Bellocco E, Laganà G, Barreca D, Magazù S, Wanderlingh U, Kiselev MA. Effect of anionic and cationic polyamidoamine (PAMAM) dendrimers on a model lipid membrane. BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES 2016; 1858:2769-2777. [PMID: 27521487 DOI: 10.1016/j.bbamem.2016.08.001] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/29/2016] [Revised: 08/02/2016] [Accepted: 08/07/2016] [Indexed: 12/25/2022]
Abstract
In spite of the growing variety of biological applications of dendrimer-based nanocarriers, a major problem of their potential applications in bio-medicine is related to the disruption of lipid bilayers and the cytotoxicity caused by the aggregation processes involved onto cellular membranes. With the aim to study model dendrimer-biomembrane interaction, the self-assembly processes of a mixture of charged polyamidoamine (PAMAM) dendrimers and dipalmitoylphosphatidylcholine (DPPC) lipids were investigated by means of Zeta potential analysis, Raman and x-ray scattering. Zwitterionic DPPC liposomes showed substantially different behaviors during their interaction with negatively charged (generation G=2.5) sodium carboxylate terminated (COO- Na+) dendrimers or positively charged (generation G=3.0) amino terminated (-NH2) dendrimers. More specifically the obtained results evidence the sensitive interactions between dendrimer terminals and lipid molecules at the surface of the liposome, with an enhancement of the liposome surface zeta potential, as well as in the hydrophobic region of the bilayers, where dendrimer penetration produce a perturbation of the hydrophobic alkyl chains of the bilayers. Analysis of the SAXS structure factor with a suitable model for the inter-dendrimers electrostatic potential allows an estimation of an effective charge of 15 ǀeǀ for G=2.5 and 7.6 ǀeǀ for G=3.0 PAMAM dendrimers. Only a fraction (about 1/7) of this charge contributes to the linear increase of liposome zeta-potential with increasing PAMAM/DPPC molar fraction. The findings of our investigation may be applied to rationalize the effect of the nanoparticles electrostatic interaction in solution environments for the design of new drug carriers combining dendrimeric and liposomal technology.
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Affiliation(s)
- Domenico Lombardo
- Consiglio Nazionale delle Ricerche, Istituto per i Processi Chimico-Fisici, Viale F. S. D'Alcontres 37, 98158 Messina, Italy.
| | - Pietro Calandra
- Consiglio Nazionale delle Ricerche, Istituto per lo Studio dei Materiali Nanostrutturati, Via Salaria km 29.300, Monterotondo Stazione, 00015 Roma, Italy
| | - Ersilia Bellocco
- Dipartimento di Scienze chimiche, biologiche, farmaceutiche ed ambientali, Università di Messina, Viale Ferdinando Stagno d'Alcontres 31, 98166 Messina, Italy
| | - Giuseppina Laganà
- Dipartimento di Scienze chimiche, biologiche, farmaceutiche ed ambientali, Università di Messina, Viale Ferdinando Stagno d'Alcontres 31, 98166 Messina, Italy
| | - Davide Barreca
- Dipartimento di Scienze chimiche, biologiche, farmaceutiche ed ambientali, Università di Messina, Viale Ferdinando Stagno d'Alcontres 31, 98166 Messina, Italy
| | - Salvatore Magazù
- Dipartimento di Scienze Matematiche e Informatiche, Scienze Fisiche e Scienze della Terra, Università di Messina, Viale Ferdinando Stagno d'Alcontres 31, 98166 Messina, Italy; LE STUDIUM, Loire Valley Institute for Advanced Studies, Orléans & Tours; and CBM (CNRS), rue Charles Sandron, 45071 Orléans, France
| | - Ulderico Wanderlingh
- Dipartimento di Scienze Matematiche e Informatiche, Scienze Fisiche e Scienze della Terra, Università di Messina, Viale Ferdinando Stagno d'Alcontres 31, 98166 Messina, Italy
| | - Mikhail A Kiselev
- Frank Laboratory of Neutron Physics, Joint Institute for Nuclear Research, Ulica Joliot-Curie 6, Dubna, Moscow 141980, Russia
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Ionov M, Ihnatsyeu-Kachan A, Michlewska S, Shcharbina N, Shcharbin D, Majoral JP, Bryszewska M. Effect of dendrimers on selected enzymes—Evaluation of nano carriers. Int J Pharm 2016; 499:247-254. [DOI: 10.1016/j.ijpharm.2015.12.056] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2015] [Revised: 12/18/2015] [Accepted: 12/19/2015] [Indexed: 12/22/2022]
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19
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Adesina SK, Akala EO. Nanotechnology Approaches for the Delivery of Exogenous siRNA for HIV Therapy. Mol Pharm 2015; 12:4175-87. [PMID: 26524196 DOI: 10.1021/acs.molpharmaceut.5b00335] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
RNA interference (RNAi) is triggered by oligonucleotides that are about 21-23 nucleotides long and are capable of inducing the destruction of complementary mRNA. The RNAi technique has been successfully utilized to target HIV replication; however, the main limitation to the successful utilization of this technique in vivo is the inability of naked siRNA to cross the cell membrane by diffusion due to its strong anionic charge and large molecular weight. This review describes current nonviral nanotechnological approaches to deliver anti-HIV siRNAs for the treatment of HIV infection.
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Affiliation(s)
- Simeon K Adesina
- Department of Pharmaceutical Sciences, Howard University , Washington, DC 20059, United States
| | - Emmanuel O Akala
- Department of Pharmaceutical Sciences, Howard University , Washington, DC 20059, United States
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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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Ionov M, Lazniewska J, Dzmitruk V, Halets I, Loznikova S, Novopashina D, Apartsin E, Krasheninina O, Venyaminova A, Milowska K, Nowacka O, Gomez-Ramirez R, de la Mata FJ, Majoral JP, Shcharbin D, Bryszewska M. Anticancer siRNA cocktails as a novel tool to treat cancer cells. Part (A). Mechanisms of interaction. Int J Pharm 2015; 485:261-9. [PMID: 25791760 DOI: 10.1016/j.ijpharm.2015.03.024] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2015] [Revised: 03/10/2015] [Accepted: 03/13/2015] [Indexed: 12/25/2022]
Abstract
This paper examines a perspective on the use of newly engineered nanomaterials as effective and safe carriers of genes for the therapy of cancer. Three different groups of cationic dendrimers (PAMAM, phosphorus and carbosilane) were complexed with anticancer siRNA and their biophysical properties of the dendriplexes analyzed. The potential of the dendrimers as nanocarriers for anticancer siBcl-xl, siBcl-2, siMcl-1 siRNAs and a siScrambled sequence was explored. Dendrimer/siRNA complexes were characterized by methods including fluorescence, zeta potential, dynamic light scattering, circular dichroism, gel electrophoresis and transmission electron microscopy. Some of the experiments were done with heparin to check if siRNA can be easily disassociated from the complexes, and whether released siRNA maintains its structure after interaction with the dendrimer. The results indicate that siRNAs form complexes with all the dendrimers tested. Oligoribonucleotide duplexes can be released from dendriplexes after heparin treatment and the structure of siRNA is maintained in the case of PAMAM or carbosilane dendrimers. The dendrimers were also effective in protecting siRNA from RNase A activity. The selection of the best siRNA carrier will be made based on cell culture studies (Part B).
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Affiliation(s)
- Maksim Ionov
- Department of General Biophysics, Faculty of Biology and Environmental Protection, University of Lodz, Poland.
| | - Joanna Lazniewska
- Department of General Biophysics, Faculty of Biology and Environmental Protection, University of Lodz, Poland
| | - Volha Dzmitruk
- Institute of Biophysics and Cell Engineering of NASB, Minsk, Belarus
| | - Inessa Halets
- Institute of Biophysics and Cell Engineering of NASB, Minsk, Belarus
| | | | - Darya Novopashina
- Institute of Chemical Biology and Fundamental Medicine SB RAS, Novosibirsk, Russia
| | - Evgeny Apartsin
- Institute of Chemical Biology and Fundamental Medicine SB RAS, Novosibirsk, Russia
| | - Olga Krasheninina
- Institute of Chemical Biology and Fundamental Medicine SB RAS, Novosibirsk, Russia
| | - Alya Venyaminova
- Institute of Chemical Biology and Fundamental Medicine SB RAS, Novosibirsk, Russia
| | - Katarzyna Milowska
- Department of General Biophysics, Faculty of Biology and Environmental Protection, University of Lodz, Poland
| | - Olga Nowacka
- Department of General Biophysics, Faculty of Biology and Environmental Protection, University of Lodz, Poland
| | - Rafael Gomez-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
| | - Francisco Javier de la Mata
- Departamento Química Orgánica y Química Inorgánica, Universidad de Alcalá, Alcalá de Henares, Spain; Networking Research Center on Bioengineering, Biomaterials and Nanomedicine, CIBER-BBN, Spain
| | | | - Dzmitry Shcharbin
- Institute of Biophysics and Cell Engineering of NASB, Minsk, Belarus.
| | - Maria Bryszewska
- Department of General Biophysics, Faculty of Biology and Environmental Protection, University of Lodz, Poland
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Ionov M, Ciepluch K, Garaiova Z, Melikishvili S, Michlewska S, Balcerzak Ł, Glińska S, Miłowska K, Gomez-Ramirez R, de la Mata FJ, Shcharbin D, Waczulikova I, Bryszewska M, Hianik T. Dendrimers complexed with HIV-1 peptides interact with liposomes and lipid monolayers. BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES 2015; 1848:907-15. [PMID: 25576765 DOI: 10.1016/j.bbamem.2014.12.025] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/08/2014] [Revised: 12/23/2014] [Accepted: 12/30/2014] [Indexed: 12/27/2022]
Abstract
AIMS We have investigated the effect of surface charge of model lipid membranes on their interactions with dendriplexes formed by HIV-derived peptides and 2 types of positively charged carbosilane dendrimers (CBD). METHODS Interaction of dendriplexes with lipid membranes was measured by fluorescence anisotropy, dynamic light scattering and Langmuir-Blodgett techniques. The morphology of the complexes was examined by transmission electron microscopy. RESULTS All dendriplexes independent of the type of peptide interacted with model lipid membranes. Negatively charged vesicles composed of a mixture of DMPC/DPPG interacted more strongly, and it was accompanied by an increase in anisotropy of the fluorescent probe localized in polar domain of lipid bilayers. There was also an increase in surface pressure of the lipid monolayers. Mixing negatively charged liposomes with dendriplexes increased liposome size and made their surface charges more positive. CONCLUSIONS HIV-peptide/dendrimer complexes interact with model lipid membranes depending on their surface charge. Carbosilane dendrimers can be useful as non-viral carriers for delivering HIV-peptides into cells.
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Affiliation(s)
- Maksim Ionov
- Department of General Biophysics, Faculty of Biology and Environmental Protection, University of Lodz, Pomorska 141/143, 90-236 Lodz, Poland.
| | - Karol Ciepluch
- Department of General Biophysics, Faculty of Biology and Environmental Protection, University of Lodz, Pomorska 141/143, 90-236 Lodz, Poland
| | - Zuzana Garaiova
- Faculty of Mathematics, Physics and Informatics, Comenius University, Mlynska dolina, 842 48 Bratislava, Slovakia
| | - Sophie Melikishvili
- Faculty of Mathematics, Physics and Informatics, Comenius University, Mlynska dolina, 842 48 Bratislava, Slovakia
| | - Sylwia Michlewska
- Laboratory of Electron Microscopy, Faculty of Biology and Environmental Protection, University of Lodz, Banacha 12/16, 90-237 Łódż, Poland
| | - Łucja Balcerzak
- Laboratory of Electron Microscopy, Faculty of Biology and Environmental Protection, University of Lodz, Banacha 12/16, 90-237 Łódż, Poland
| | - Sława Glińska
- Laboratory of Electron Microscopy, Faculty of Biology and Environmental Protection, University of Lodz, Banacha 12/16, 90-237 Łódż, Poland
| | - Katarzyna Miłowska
- Department of General Biophysics, Faculty of Biology and Environmental Protection, University of Lodz, Pomorska 141/143, 90-236 Lodz, Poland
| | - Rafael Gomez-Ramirez
- Departamento Química Inorgánica, Universidad de Alcalá de Henares, CIBER-BBN Alcalá de Henares, Spain
| | | | - Dzmitry Shcharbin
- Institute of Biophysics and Cell Engineering of NASB, Minsk, Belarus
| | - Iveta Waczulikova
- Faculty of Mathematics, Physics and Informatics, Comenius University, Mlynska dolina, 842 48 Bratislava, Slovakia
| | - Maria Bryszewska
- Department of General Biophysics, Faculty of Biology and Environmental Protection, University of Lodz, Pomorska 141/143, 90-236 Lodz, Poland
| | - Tibor Hianik
- Faculty of Mathematics, Physics and Informatics, Comenius University, Mlynska dolina, 842 48 Bratislava, Slovakia
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Ramana LN, Sharma S, Sethuraman S, Ranga U, Krishnan UM. Stealth anti-CD4 conjugated immunoliposomes with dual antiretroviral drugs--modern Trojan horses to combat HIV. Eur J Pharm Biopharm 2014; 89:300-11. [PMID: 25500283 DOI: 10.1016/j.ejpb.2014.11.021] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2014] [Revised: 10/28/2014] [Accepted: 11/25/2014] [Indexed: 11/25/2022]
Abstract
Highly active antiretroviral therapy (HAART) is the currently employed therapeutic intervention against AIDS where a drug combination is used to reduce the viral load. The present work envisages the development of a stealth anti-CD4 conjugated immunoliposomes containing two anti-retroviral drugs (nevirapine and saquinavir) that can selectively home into HIV infected cells through the CD4 receptor. The nanocarrier was characterized using transmission electron microscopy, FTIR, differential scanning calorimetry, particle size and zeta potential. The cell uptake was also evaluated qualitatively using confocal microscopy and quantitatively by flow cytometry. The drug to lipid composition was optimized for maximum encapsulation of the two drugs. Both drugs were found to localize in different regions of the liposome. The release of the reverse transcriptase inhibitor was dominant during the early phases of the release while in the later phases, the protease inhibitor is the major constituent released. The drugs delivered via anti-CD4 conjugated immunoliposomes inhibited viral proliferation at a significantly lower concentration as compared to free drugs. In vitro studies of nevirapine to saquinavir combination at a ratio of 6.2:5 and a concentration as low as 5 ng/mL efficiently blocked viral proliferation suggesting that co-delivery of anti-retroviral drugs holds a greater promise for efficient management of HIV-1 infection.
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Affiliation(s)
| | - Shilpee Sharma
- HIV-AIDS Laboratory, Molecular Biology and Genetics Unit, Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Bangalore, India
| | - Swaminathan Sethuraman
- Centre for Nanotechnology & Advanced Biomaterials (CeNTAB), SASTRA University, Thanjavur, India
| | - Udaykumar Ranga
- HIV-AIDS Laboratory, Molecular Biology and Genetics Unit, Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Bangalore, India
| | - Uma Maheswari Krishnan
- Centre for Nanotechnology & Advanced Biomaterials (CeNTAB), SASTRA University, Thanjavur, India.
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Abstract
In this article, we reviewed the interactions between dendrimers and surfactants with particular focus on the interaction mechanisms and physicochemical properties of the yielding dendrimer-surfactant aggregates. In order to provide insight into the behavior of dendrimers in biological systems, the interactions of dendrimers with bio-surfactants such as phospholipids in bulk solutions, in solid-supported bilayers and at the interface of phases or solid-states were discussed. Applications of the dendrimer-surfactant aggregates as templates to guide the synthesis of nanoparticles and in drug or gene delivery were also mentioned.
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Affiliation(s)
- Yiyun Cheng
- Shanghai Key Laboratory of Regulatory Biology, School of Life Sciences, East China Normal University, Shanghai, 200241, People's Republic of China.
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25
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Wrobel D, Kolanowska K, Gajek A, Gomez-Ramirez R, de la Mata J, Pedziwiatr-Werbicka E, Klajnert B, Waczulikova I, Bryszewska M. Interaction of cationic carbosilane dendrimers and their complexes with siRNA with erythrocytes and red blood cell ghosts. BIOCHIMICA ET BIOPHYSICA ACTA 2014; 1838:882-9. [PMID: 24316171 PMCID: PMC7094680 DOI: 10.1016/j.bbamem.2013.11.017] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/30/2013] [Revised: 11/01/2013] [Accepted: 11/26/2013] [Indexed: 11/20/2022]
Abstract
We have investigated the interactions between cationic NN16 and BDBR0011 carbosilane dendrimers with red blood cells or their cell membranes. The carbosilane dendrimers used possess 16 cationic functional groups. Both the dendrimers are made of water-stable carbon-silicon bonds, but NN16 possesses some oxygen-silicon bonds that are unstable in water. The nucleic acid used in the experiments was targeted against GAG-1 gene from the human immunodeficiency virus, HIV-1. By binding to the outer leaflet of the membrane, carbosilane dendrimers decreased the fluidity of the hydrophilic part of the membrane but increased the fluidity of the hydrophobic interior. They induced hemolysis, but did not change the morphology of the cells. Increasing concentrations of dendrimers induced erythrocyte aggregation. Binding of short interfering ribonucleic acid (siRNA) to a dendrimer molecule decreased the availability of cationic groups and diminished their cytotoxicity. siRNA-dendrimer complexes changed neither the fluidity of biological membranes nor caused cell hemolysis. Addition of dendriplexes to red blood cell suspension induced echinocyte formation.
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Affiliation(s)
- Dominika Wrobel
- Department of General Biophysics, Faculty of Biology and Environmental Protection, University of Lodz, Lodz, Poland.
| | - Katarzyna Kolanowska
- Department of General Biophysics, Faculty of Biology and Environmental Protection, University of Lodz, Lodz, Poland
| | - Arkadiusz Gajek
- Department of Thermobiology, Faculty of Biology and Environmental Protection, University of Lodz, Lodz, Poland
| | | | - Javier de la Mata
- Departamento Quimica Inorganica, Universidad de Alcala de Henares, Spain
| | - Elżbieta Pedziwiatr-Werbicka
- Department of General Biophysics, Faculty of Biology and Environmental Protection, University of Lodz, Lodz, Poland
| | - Barbara Klajnert
- Department of General Biophysics, Faculty of Biology and Environmental Protection, University of Lodz, Lodz, Poland
| | - Iveta Waczulikova
- Faculty of Mathematics, Physics and Informatics, Comenius University, Bratislava, Slovakia
| | - Maria Bryszewska
- Department of General Biophysics, Faculty of Biology and Environmental Protection, University of Lodz, Lodz, Poland
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26
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Dendrimers as carriers for siRNA delivery and gene silencing: a review. ScientificWorldJournal 2013; 2013:630654. [PMID: 24288498 PMCID: PMC3830781 DOI: 10.1155/2013/630654] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2013] [Accepted: 09/19/2013] [Indexed: 12/12/2022] Open
Abstract
RNA interference (RNAi) was first literaturally reported in 1998 and has become rapidly a promising tool for therapeutic applications in gene therapy. In a typical RNAi process, small interfering RNAs (siRNA) are used to specifically downregulate the expression of the targeted gene, known as the term "gene silencing." One key point for successful gene silencing is to employ a safe and efficient siRNA delivery system. In this context, dendrimers are emerging as potential nonviral vectors to deliver siRNA for RNAi purpose. Dendrimers have attracted intense interest since their emanating research in the 1980s and are extensively studied as efficient DNA delivery vectors in gene transfer applications, due to their unique features based on the well-defined and multivalent structures. Knowing that DNA and RNA possess a similar structure in terms of nucleic acid framework and the electronegative nature, one can also use the excellent DNA delivery properties of dendrimers to develop effective siRNA delivery systems. In this review, the development of dendrimer-based siRNA delivery vectors is summarized, focusing on the vector features (siRNA delivery efficiency, cytotoxicity, etc.) of different types of dendrimers and the related investigations on structure-activity relationship to promote safe and efficient siRNA delivery system.
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27
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Complexation of HIV derived peptides with carbosilane dendrimers. Colloids Surf B Biointerfaces 2013; 101:236-42. [DOI: 10.1016/j.colsurfb.2012.07.011] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2012] [Revised: 06/12/2012] [Accepted: 07/09/2012] [Indexed: 01/23/2023]
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