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Levina A, Repkova M, Ismagilov Z, Zarytova V. Methods of the Synthesis of Silicon-Containing Nanoparticles Intended for Nucleic Acid Delivery. EURASIAN CHEMICO-TECHNOLOGICAL JOURNAL 2018. [DOI: 10.18321/ectj720] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
A promising new approach to the treatment of viral infections and genetic diseases associated with damaged or foreign nucleic acids in the body is gene therapy, i.e., the use of antisense oligonucleotides, ribozymes, deoxyribozymes, siRNA, plasmid DNA, etc. (therapeutic nucleic acids). Selective recognition of target nucleic acids by these compounds based on highly specific complementary interaction can minimize negative side effects, which occur with currently used low molecular weight drugs. To apply a new generation of therapeutic agents in medical practice, it is necessary to solve the problem of their delivery into cells. Silicon-containing nanoparticles are considered as promising carriers for this purpose due to their biocompatibility, low toxicity, ability to biodegradation and excretion from the body, as well as the simplicity of the synthesis and modification. Silicon-containing nanoparticles are divided into two broad categories: solid (nonporous) and mesoporous silicon nanoparticles (MSN). This review gives a brief overview of the creation of mesoporous, multilayer, and other silicon-based nanoparticles. The publications concerning solid silicon-organic nanoparticles capable of binding and delivering nucleic acids into cells are discussed in more detail with emphasis on methods for their synthesis. The review covers publications over the past 15 years, which describe the classical Stöber method, the microemulsion method, modification of commercial silica nanoparticles, and other strategies.
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Repkova M, Levina A, Chelobanov B, Ismagilov Z, Shatskaya N, Baiborodin S, Filippova E, Mazurkova N, Zarytova V. Efficient inhibition of influenza A viral replication in cells by deoxyribozymes delivered by nanocomposites. Int J Antimicrob Agents 2017; 49:703-708. [PMID: 28412273 DOI: 10.1016/j.ijantimicag.2017.01.026] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2016] [Revised: 01/16/2017] [Accepted: 01/22/2017] [Indexed: 10/19/2022]
Abstract
Nucleic-acid-based drugs are a promising class of novel therapeutics; however, their use in medicine is widely limited because of insufficient delivery into cells. This article proposes a new delivery strategy of nucleic acid fragments into cells as components of TiO2-based nanocomposites. For the first time, unmodified Dz molecules were non-covalently immobilized on TiO2 nanoparticles precovered with polylysine (TiO2•PL) with the formation of (TiO2•PL)•Dz nanocomposites. DNAzymes in the proposed nanocomposites were shown to retain their ability to cleave the RNA target in a cell-free system with the same selectivity as unbound Dz molecules. It was shown by confocal laser microscopy that the fluorescein-labelled (TiO2•PL)•DzFlu nanocomposites penetrate into eukaryotic cells, where DzFlu is internalized in the cytoplasm and predominantly in nuclei. Delivery of deoxyribozymes into cells in the proposed nanocomposites permits very efficient interactions with RNA targets inside cells. This was demonstrated by an example of inhibition of H5N1 influenza A virus replication (inhibition by a factor of ca. 3000). This effect was one order of magnitude higher than with using lipofectamine as the transfection agent. The proposed (TiO2•PL)•Dz nanocomposites demonstrated high antiviral activity and are thus potent as nucleic-acid-based drugs.
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Affiliation(s)
- Marina Repkova
- Institute of Chemical Biology and Fundamental Medicine, Siberian Branch of Russian Academy of Sciences, Novosibirsk, Russia
| | - Asya Levina
- Institute of Chemical Biology and Fundamental Medicine, Siberian Branch of Russian Academy of Sciences, Novosibirsk, Russia
| | - Boris Chelobanov
- Institute of Chemical Biology and Fundamental Medicine, Siberian Branch of Russian Academy of Sciences, Novosibirsk, Russia; Novosibirsk State University, Novosibirsk, Russia
| | - Zinfer Ismagilov
- Boreskov Institute of Catalysis, Siberian Branch of Russian Academy of Sciences, Novosibirsk, Russia
| | - Natalia Shatskaya
- Institute of Cytology and Genetics, Siberian Branch of Russian Academy of Sciences, Novosibirsk, Russia
| | - Sergei Baiborodin
- Institute of Cytology and Genetics, Siberian Branch of Russian Academy of Sciences, Novosibirsk, Russia
| | - Ekaterina Filippova
- FBRI State Research Centre of Virology and Biotechnology 'Vector', Koltsovo, Novosibirsk, Russia
| | - Natalia Mazurkova
- FBRI State Research Centre of Virology and Biotechnology 'Vector', Koltsovo, Novosibirsk, Russia
| | - Valentina Zarytova
- Institute of Chemical Biology and Fundamental Medicine, Siberian Branch of Russian Academy of Sciences, Novosibirsk, Russia.
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Vasilyeva SV, Levina AS, Li-Zhulanov NS, Shatskaya NV, Baiborodin SI, Repkova MN, Zarytova VF, Mazurkova NA, Silnikov VN. SiO₂ nanoparticles as platform for delivery of 3'-triazole analogues of AZT-triphosphate into cells. Bioorg Med Chem 2015; 23:2168-75. [PMID: 25801161 DOI: 10.1016/j.bmc.2015.02.063] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2015] [Revised: 02/26/2015] [Accepted: 02/27/2015] [Indexed: 11/18/2022]
Abstract
A system for delivery of analogues of AZT-triphosphates (AZT*TP) based on SiO₂ nanoparticles was proposed. For this purpose, a simple and versatile method was developed for the preparation of SiO₂∼dNTP conjugates using the 'click'-reaction between AZTTP and premodified nanoparticles containing the alkyne groups. The substrate properties of SiO₂∼AZT*TP were tested using Klenow fragment and HIV reverse transcriptase. The 3'-triazole derivatives of thymidine triphosphate being a part of the SiO₂∼AZT*TP nanocomposites were shown to be incorporated into the growing DNA chain. It was shown by confocal microscopy that the proposed SiO₂∼AZT*TP nanocomposites penetrate into cells. These nanocomposites were shown to inhibit the reproduction of POX and Herpes viruses at nontoxic concentrations.
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Affiliation(s)
- Svetlana V Vasilyeva
- Institute of Chemical Biology and Fundamental Medicine, Siberian Branch of Russian Academy of Sciences, pr. Lavrent'eva 8, 630090 Novosibirsk, Russia.
| | - Asya S Levina
- Institute of Chemical Biology and Fundamental Medicine, Siberian Branch of Russian Academy of Sciences, pr. Lavrent'eva 8, 630090 Novosibirsk, Russia
| | - Nikolai S Li-Zhulanov
- Institute of Chemical Biology and Fundamental Medicine, Siberian Branch of Russian Academy of Sciences, pr. Lavrent'eva 8, 630090 Novosibirsk, Russia
| | - Natalia V Shatskaya
- Institute of Cytology and Genetics, Siberian Branch of Russian Academy of Sciences, Novosibirsk, Russia
| | - Sergei I Baiborodin
- Institute of Cytology and Genetics, Siberian Branch of Russian Academy of Sciences, Novosibirsk, Russia
| | - Marina N Repkova
- Institute of Chemical Biology and Fundamental Medicine, Siberian Branch of Russian Academy of Sciences, pr. Lavrent'eva 8, 630090 Novosibirsk, Russia
| | - Valentina F Zarytova
- Institute of Chemical Biology and Fundamental Medicine, Siberian Branch of Russian Academy of Sciences, pr. Lavrent'eva 8, 630090 Novosibirsk, Russia
| | - Natalia A Mazurkova
- FBRI State Research Centre of Virology and Biotechnology 'Vector', Novosibirsk, Russia
| | - Vladimir N Silnikov
- Institute of Chemical Biology and Fundamental Medicine, Siberian Branch of Russian Academy of Sciences, pr. Lavrent'eva 8, 630090 Novosibirsk, Russia
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Levina AS, Ismagilova ZR, Repkova MN, Shikina NV, Baĭborodin SI, Shatskaia NV, Zagrebel'nyĭ SN, Zarytova VF. [TiO2-DNA nanocomposites capable of penetrating into cells]. RUSSIAN JOURNAL OF BIOORGANIC CHEMISTRY 2013; 39:87-98. [PMID: 23844510 DOI: 10.1134/s1068162013010068] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Methods of noncovalent immobilization of DNA fragments onto titanium dioxide nanoparticles (TiO2) were developed, which led to TiO2-DNA nanocomposites capable of penetrating through cell membranes. TiO2 nanoparticles of different forms (amorphous, anatase, brookit) with enhanced agglomeration stability were synthesized. The particles were characterized by X-ray diffraction, small angle X-ray scattering, infrared spectroscopy and atomic force microscopy. Three approaches to the preparation of nanocomposites are described: (1) sorption of polylysine-containing oligonucleotides onto TiO2-nanoparticles, (2) the electrostatic binding of oligonucleotides to TiO2 nanoparticles bearing immobilized polylysine, and (3) sorption of oligonucleotides on TiO2 nanoparticles in the presence of cetavlon. All three methods provide an efficient and stable immobilization of DNA fragments onto nanoparticles, which leads to nanocomposites with a density for an oligonucleotide up to 40 nmol/mg. It is shown that DNA fragments in nanocomposites retain their ability to form complementary complexes and can be delivered into cells without transfection agents and other methods of exposure.
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Levina AS, Repkova MN, Ismagilov ZR, Shikina NV, Malygin EG, Mazurkova NA, Zinov'ev VV, Evdokimov AA, Baiborodin SI, Zarytova VF. High-performance method for specific effect on nucleic acids in cells using TiO2~DNA nanocomposites. Sci Rep 2012; 2:756. [PMID: 23091696 PMCID: PMC3477653 DOI: 10.1038/srep00756] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2012] [Accepted: 09/27/2012] [Indexed: 11/11/2022] Open
Abstract
Nanoparticles are used to solve the current drug delivery problem. We present a high-performance method for efficient and selective action on nucleic acid target in cells using unique TiO2·PL-DNA nanocomposites (polylysine-containing DNA fragments noncovalently immobilized onto TiO2 nanoparticles capable of transferring DNA). These nanocomposites were used for inhibition of human influenza A (H3N2) virus replication in infected MDCK cells. They showed a low toxicity (TC50 ≈ 1800 μg/ml) and a high antiviral activity (>99.9% inhibition of the virus replication). The specificity factor (antisense effect) appeared to depend on the delivery system of DNA fragments. This factor for nanocomposites is ten-times higher than for DNA in the presence of lipofectamine. IC50 for nanocomposites was estimated to be 1.5 μg/ml (30 nM for DNA), so its selectivity index was calculated as ~1200. Thus, the proposed nanocomposites are prospective for therapeutic application.
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Affiliation(s)
- Asya S Levina
- Institute of Chemical Biology and Fundamental Medicine, Siberian Branch of Russian Academy of Sciences, Novosibirsk, Russia
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Zarytova VF, Zinov'ev VV, Ismagilov ZR, Levina AS, Repkova MN, Shikina NV, Evdokimov AA, Belanov EF, Balakhnin SM, Serova OA, Baiborodin SI, Malygin EG, Zagrebel'nyi SN. An examination of the ability of titanium dioxide nanoparticles and its conjugates with oligonucleotides to penetrate into eucariotis cells. ACTA ACUST UNITED AC 2009; 4:732. [PMID: 32218897 PMCID: PMC7090768 DOI: 10.1134/s1995078009090158] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2008] [Indexed: 11/23/2022]
Abstract
In this study we examine the possibility that TiO2 nanoparticles and their conjugates can penetrate into cultivated cells without any special transfection procedures. Oligonucleotides and their derivates were conjugated with the TiO2 nanoparticles, which were obtained as colloidal solutions at a concentration of TiO2 0.3M by TiCl4 hydrolysis. The electronic microscopy of various cell cultures (KCT, Vero, and MDCK) treated with nanoparticle solutions (20 µg/µl) showed that nanoparticles could enter the cells and accumulate in the vacuoles and phagosomes and form inclusions in cytoplasm. Thus, we demonstrated the penetration of TiO2 nanoparticles and their oligonucleotide conjugates into intracellular space without any auxiliary operations. Most other researches used electroporation techniques for similar purposes [1, 2, 5].
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Affiliation(s)
- V F Zarytova
- 1Institute of Chemical Biology and Fundamental Medicine, Siberian Branch, Russian Academy of Sciences, pr. Akademika Lavrent'eva 8, Novosibirsk, 630090 Russia
| | - V V Zinov'ev
- The Vektor State Research Center of Virology and Biotechnology, Federal Service for Supervision in the Sphere of Protecting Consumer Rights and Human Wellbeing (Federal State Research Institution), ABK, korp. 12, Kol'tsovo, Novosibirsk oblast, 630559 Russia
| | - Z R Ismagilov
- 3Institute of Catalysis, Siberian Branch, Russian Academy of Sciences, pr. Akademika Lavrent'eva 5, Novosibirsk, 630090 Russia
| | - A S Levina
- 1Institute of Chemical Biology and Fundamental Medicine, Siberian Branch, Russian Academy of Sciences, pr. Akademika Lavrent'eva 8, Novosibirsk, 630090 Russia
| | - M N Repkova
- 1Institute of Chemical Biology and Fundamental Medicine, Siberian Branch, Russian Academy of Sciences, pr. Akademika Lavrent'eva 8, Novosibirsk, 630090 Russia
| | - N V Shikina
- 3Institute of Catalysis, Siberian Branch, Russian Academy of Sciences, pr. Akademika Lavrent'eva 5, Novosibirsk, 630090 Russia
| | - A A Evdokimov
- The Vektor State Research Center of Virology and Biotechnology, Federal Service for Supervision in the Sphere of Protecting Consumer Rights and Human Wellbeing (Federal State Research Institution), ABK, korp. 12, Kol'tsovo, Novosibirsk oblast, 630559 Russia
| | - E F Belanov
- The Vektor State Research Center of Virology and Biotechnology, Federal Service for Supervision in the Sphere of Protecting Consumer Rights and Human Wellbeing (Federal State Research Institution), ABK, korp. 12, Kol'tsovo, Novosibirsk oblast, 630559 Russia
| | - S M Balakhnin
- The Vektor State Research Center of Virology and Biotechnology, Federal Service for Supervision in the Sphere of Protecting Consumer Rights and Human Wellbeing (Federal State Research Institution), ABK, korp. 12, Kol'tsovo, Novosibirsk oblast, 630559 Russia
| | - O A Serova
- The Vektor State Research Center of Virology and Biotechnology, Federal Service for Supervision in the Sphere of Protecting Consumer Rights and Human Wellbeing (Federal State Research Institution), ABK, korp. 12, Kol'tsovo, Novosibirsk oblast, 630559 Russia
| | - S I Baiborodin
- 4State Educational Institution of Higher Professional Education, Novosibirsk State University Rosobrazovaniya, Russian Federation, ul. Pirogova 2, Novosibirsk, 630090 Russia
| | - E G Malygin
- The Vektor State Research Center of Virology and Biotechnology, Federal Service for Supervision in the Sphere of Protecting Consumer Rights and Human Wellbeing (Federal State Research Institution), ABK, korp. 12, Kol'tsovo, Novosibirsk oblast, 630559 Russia
| | - S N Zagrebel'nyi
- 4State Educational Institution of Higher Professional Education, Novosibirsk State University Rosobrazovaniya, Russian Federation, ul. Pirogova 2, Novosibirsk, 630090 Russia
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Gudnason H, Dufva M, Duong Bang D, Wolff A. An inexpensive and simple method for thermally stable immobilization of DNA on an unmodified glass surface: UV linking of poly(T)10-poly(C)10-tagged DNA probes. Biotechniques 2008; 45:261-71. [PMID: 18778250 DOI: 10.2144/000112905] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Microarrays printed on glass slides are often constructed by covalently linking modified oligonucleotide probes to a derivatized surface at considerable expense. In this article, we demonstrate that 14-base oligonucleotides with a poly(T)10 - poly(C)10 tail (TC tag), but otherwise unmodified, can be linked by UV light irradiation onto a plain, unmodified glass surface. Probes immobilized onto unmodified glass microscope slides performed similarly to probes bound to commercial amino-silane-coated slides and had comparable detection limits. The TC-tagged probes linked to unmodified glass did not show any significant decrease in hybridization performance after a 20 min incubation in water at 100 degrees C prior to rehybridization, indicating a covalent bond between the TC tag and unmodified glass. The probes were used in thermal minisequencing cycling reactions. Furthermore, the TC tag improved the hybridization performance of the immobilized probes on the amino-silane surface, indicating a general benefit of adding a TC tag to DNA probes. In conclusion, our results show that using TC-tagged DNA probes immobilized on an unmodified glass surface is a robust, heat-stable, very simple, and inexpensive method for manufacturing DNA microarrays.
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Affiliation(s)
- Haukur Gudnason
- DTU Nanotech, Department of Micro- and Nanotechnology, Technical University of Denmark, Lyngby
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