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Suner SS. Degradable, biocompatible, and antibacterial polygalacturonic acid/polyethyleneimine polyplex particles. POLYM ADVAN TECHNOL 2023. [DOI: 10.1002/pat.6027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/20/2023]
Affiliation(s)
- Selin Sagbas Suner
- Department of Chemistry, Faculty of Sciences & Arts, and Nanoscience and Technology Research and Application Center (NANORAC) Canakkale Onsekiz Mart University Canakkale 17100 Turkey
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Kim HJ, Cho HB, Lee S, Lyu J, Kim HR, Lee S, Park JI, Park KH. Strategies for accelerating osteogenesis through nanoparticle-based DNA/mitochondrial damage repair. Am J Cancer Res 2022; 12:6409-6421. [PMID: 36168629 PMCID: PMC9475457 DOI: 10.7150/thno.77089] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Accepted: 08/18/2022] [Indexed: 11/05/2022] Open
Abstract
The efficiency of gene therapy is often dictated by the gene delivery system. Cationic polymers are essential elements of gene delivery systems. The relatively cheap cationic polymer, polyethyleneimine, has high gene delivery efficiency and is often used for gene delivery. However, the efficiency of gene therapy with polyethyleneimine-pDNA polyplex (PEI) is low. Human mesenchymal stem cells transfected with polyethyleneimine and a plasmid carrying the important osteogenic differentiation gene runt-related transcription factor 2 (RUNX2) accumulated DNA double-strand breaks and mitochondrial damage proportional to the amount of polyethyleneimine, reducing viability. Genomic/cellular stabilizer mediating RUNX2 delivery (GuaRD), a new reagent incorporating RS-1 NPs developed in this study, promoted DNA repair and prevented the accumulation of cell damage, allowing the delivery of pRUNX2 into hMSCs. while maintaining genome and mitochondrial stability. DNA damage was significantly lower and the expression of DNA repair-related genes significantly higher with GuaRD than with PEI. In addition, GuaRD improved mitochondrial stability, decreased the level of reactive oxygen species, and increased mitochondrial membrane potential. Osteogenic extracellular matrix (ECM) expression and calcification were higher with GuaRD than with PEI, suggesting improved osteogenic differentiation. These results indicate that lowering the cytotoxicity of PEI and improving cell stability are key to overcoming the limitations of conventional gene therapy, and that GuaRD can help resolve these limitations.
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Affiliation(s)
- Hye Jin Kim
- Laboratory of Nano-regenerative Medicine, Department of Biomedical Science, College of Life Science, CHA University, CHA Biocomplex, Sampyeong-Dong, Bundang-gu, Seongnam-si, 13488, Republic of Korea
| | - Hui Bang Cho
- Laboratory of Nano-regenerative Medicine, Department of Biomedical Science, College of Life Science, CHA University, CHA Biocomplex, Sampyeong-Dong, Bundang-gu, Seongnam-si, 13488, Republic of Korea
| | - Sujin Lee
- Laboratory of Nano-regenerative Medicine, Department of Biomedical Science, College of Life Science, CHA University, CHA Biocomplex, Sampyeong-Dong, Bundang-gu, Seongnam-si, 13488, Republic of Korea
| | - Jiyon Lyu
- School of Medicine, CHA University, CHA Biocomplex, Sampyeong-Dong, Bundang-gu, Seongnam-si, 13488, Republic of Korea
| | - Hye-Ryoung Kim
- Laboratory of Nano-regenerative Medicine, Department of Biomedical Science, College of Life Science, CHA University, CHA Biocomplex, Sampyeong-Dong, Bundang-gu, Seongnam-si, 13488, Republic of Korea
| | - Sujeong Lee
- Laboratory of Nano-regenerative Medicine, Department of Biomedical Science, College of Life Science, CHA University, CHA Biocomplex, Sampyeong-Dong, Bundang-gu, Seongnam-si, 13488, Republic of Korea
| | - Ji-In Park
- Laboratory of Nano-regenerative Medicine, Department of Biomedical Science, College of Life Science, CHA University, CHA Biocomplex, Sampyeong-Dong, Bundang-gu, Seongnam-si, 13488, Republic of Korea
| | - Keun-Hong Park
- Laboratory of Nano-regenerative Medicine, Department of Biomedical Science, College of Life Science, CHA University, CHA Biocomplex, Sampyeong-Dong, Bundang-gu, Seongnam-si, 13488, Republic of Korea
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Chongchai A, Waramit S, Wongwichai T, Kampangtip J, Phitak T, Kongtawelert P, Hajitou A, Suwan K, Pothacharoen P. Targeting Human Osteoarthritic Chondrocytes with Ligand Directed Bacteriophage-Based Particles. Viruses 2021; 13:2343. [PMID: 34960616 PMCID: PMC8706358 DOI: 10.3390/v13122343] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2021] [Revised: 11/14/2021] [Accepted: 11/19/2021] [Indexed: 01/21/2023] Open
Abstract
Osteoarthritis (OA) is a degenerative joint disease characterized by progressive deterioration and loss of articular cartilage. There is currently no treatment to reverse the onset of OA. Thus, we developed a targeted delivery strategy to transfer genes into primary human chondrocytes as a proof-of-concept study. We displayed a chondrocyte-affinity peptide (CAP) on the pIII minor coat protein of the M13 filamentous bacteriophage (phage)-based particle carrying a mammalian transgene cassette under cytomegalovirus CMV promoter and inverted terminal repeats (ITRs) cis elements of adeno-associated virus serotype 2 (AAV-2). Primary human articular chondrocytes (HACs) were used as an in vitro model, and the selectivity and binding properties of the CAP ligand in relation to the pathogenic conditions of HACs were characterized. We found that the CAP ligand is highly selective toward pathogenic HACs. Furthermore, the stability, cytotoxicity, and gene delivery efficacy of the CAP-displaying phage (CAP.Phage) were evaluated. We found that the phage particle is stable under a wide range of temperatures and pH values, while showing no cytotoxicity to HACs. Importantly, the CAP.Phage particle, carrying a secreted luciferase (Lucia) reporter gene, efficiently and selectively delivered transgene expression to HACs. In summary, it was found that the CAP ligand preferably binds to pathogenic chondrocytes, and the CAP.Phage particle successfully targets and delivers transgene to HACs.
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Affiliation(s)
- Aitthiphon Chongchai
- Thailand Excellence Centre for Tissue Engineering and Stem Cells, Department of Biochemistry, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand
- Cancer Phagotherapy Group, Department of Brain Sciences, Burlington Danes Building, Hammersmith Hospital Campus, Imperial College London, London W12 0NN, UK
| | - Sajee Waramit
- Cancer Phagotherapy Group, Department of Brain Sciences, Burlington Danes Building, Hammersmith Hospital Campus, Imperial College London, London W12 0NN, UK
| | - Tunchanok Wongwichai
- Thailand Excellence Centre for Tissue Engineering and Stem Cells, Department of Biochemistry, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Jirawan Kampangtip
- Thailand Excellence Centre for Tissue Engineering and Stem Cells, Department of Biochemistry, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Thanyaluck Phitak
- Thailand Excellence Centre for Tissue Engineering and Stem Cells, Department of Biochemistry, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Prachya Kongtawelert
- Thailand Excellence Centre for Tissue Engineering and Stem Cells, Department of Biochemistry, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Amin Hajitou
- Cancer Phagotherapy Group, Department of Brain Sciences, Burlington Danes Building, Hammersmith Hospital Campus, Imperial College London, London W12 0NN, UK
| | - Keittisak Suwan
- Cancer Phagotherapy Group, Department of Brain Sciences, Burlington Danes Building, Hammersmith Hospital Campus, Imperial College London, London W12 0NN, UK
| | - Peraphan Pothacharoen
- Thailand Excellence Centre for Tissue Engineering and Stem Cells, Department of Biochemistry, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand
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Bakirci E, Frank A, Gumbel S, Otto PF, Fürsattel E, Tessmer I, Schmidt H, Dalton PD. Melt Electrowriting of Amphiphilic Physically Crosslinked Segmented Copolymers. MACROMOL CHEM PHYS 2021. [DOI: 10.1002/macp.202100259] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Ezgi Bakirci
- Department for Functional Materials in Medicine and Dentistry and Bavarian Polymer (BPI) Institute University Würzburg Pleicherwall 2 Würzburg 97070 Germany
| | - Andreas Frank
- Macromolecular Chemistry and Bavarian Polymer Institute (BPI) University of Bayreuth Universitätsstraße 30 Bayreuth 95440 Germany
| | - Simon Gumbel
- Macromolecular Chemistry and Bavarian Polymer Institute (BPI) University of Bayreuth Universitätsstraße 30 Bayreuth 95440 Germany
| | - Paul F. Otto
- Department for Functional Materials in Medicine and Dentistry and Bavarian Polymer (BPI) Institute University Würzburg Pleicherwall 2 Würzburg 97070 Germany
| | - Eva Fürsattel
- Macromolecular Chemistry and Bavarian Polymer Institute (BPI) University of Bayreuth Universitätsstraße 30 Bayreuth 95440 Germany
| | - Ingrid Tessmer
- Rudolf‐Virchow Center for Integrative and Translational Bioimaging University of Würzburg Josef‐Schneider‐Straße 2 Würzburg 97080 Germany
| | - Hans‐Werner Schmidt
- Macromolecular Chemistry and Bavarian Polymer Institute (BPI) University of Bayreuth Universitätsstraße 30 Bayreuth 95440 Germany
| | - Paul D. Dalton
- Department for Functional Materials in Medicine and Dentistry and Bavarian Polymer (BPI) Institute University Würzburg Pleicherwall 2 Würzburg 97070 Germany
- Phil and Penny Knight Campus to Accelerate Scientific Impact University of Oregon 1505 Franklin Blvd Eugene OR 90403 USA
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Suzuki IL, de Araujo MM, Bagnato VS, Bentley MVLB. TNFα siRNA delivery by nanoparticles and photochemical internalization for psoriasis topical therapy. J Control Release 2021; 338:316-329. [PMID: 34437914 DOI: 10.1016/j.jconrel.2021.08.039] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2020] [Revised: 07/29/2021] [Accepted: 08/21/2021] [Indexed: 12/26/2022]
Abstract
Psoriasis is a chronic inflammatory skin disease that presents increased expression of tumor necrosis factor α (TNFα), a proinflammatory cytokine. The discovery of RNA interference (RNAi), mediated by short interfering RNA (siRNA), made it possible for the expression of some genes to be eliminated. However, for its application, it is necessary to use carriers that can protect siRNA and release it in the target cells. Herein, we developed a delivery system for siRNA based on hybrid polymer-lipid nanoparticles (PLNs) and combined this system with photochemical internalization (PCI), photoactivating the photosensitizer TPPS2a, to optimize the endosomal escape of TNFα siRNA in the cytoplasm, aiming to use the system as a topical formulation to treat psoriasis. The PLNs composed of 2.0% of Compritol® 888 ATO (lipid), 1.5% of poloxamer 188 and 0.1% of the cationic polymer poly(allylamine hydrochloride) showed an average nanoparticle size of 142 nm, a zeta potential of +25 mV, and the ability to efficiently coencapsulate TPPS2a and complexed siRNA. In addition, these materials did not present cellular toxicity and showed high cellular uptake. In vitro delivery studies using porcine skin model revealed that the PLNs delivered siRNA and TPPS2a into the skin. The efficacy was verified using an in vivo psoriasis animal (hairless mouse) model induced by imiquimod (IMQ) cream. The results revealed that PLN-TPPS2a-TNFα siRNA combined with PCI resulted in a decrease in the levels of TNFα, showing the efficiency of the treatment to silence this cytokine in psoriatic lesions, which was accompanied by a reduction in the redness and scaling of the mouse skin. The results showed the potential of the developed PLNs in combined silencing gene therapy and PCI for topical treatment of psoriasis.
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Affiliation(s)
- Isabella Luiz Suzuki
- School of Pharmaceutical Sciences of Ribeirao Preto, University of Sao Paulo, Av. do Café, s/n, 14040-903 Ribeirão Preto, SP, Brazil
| | - Margarete Moreno de Araujo
- School of Pharmaceutical Sciences of Ribeirao Preto, University of Sao Paulo, Av. do Café, s/n, 14040-903 Ribeirão Preto, SP, Brazil
| | - Vanderlei Salvador Bagnato
- Physics Institute of São Carlos, University of São Paulo, Brazil; Hagler Institute for Advanced Studies, Texas A&M University, College Station, USA
| | - Maria Vitoria Lopes Badra Bentley
- School of Pharmaceutical Sciences of Ribeirao Preto, University of Sao Paulo, Av. do Café, s/n, 14040-903 Ribeirão Preto, SP, Brazil.
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Correlation between the composition of PLA-based folate targeted micelles and release of phosphonate derivative of betulin. J Drug Deliv Sci Technol 2021. [DOI: 10.1016/j.jddst.2021.102717] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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Viegas JSR, Praça FG, Caron AL, Suzuki I, Silvestrini AVP, Medina WSG, Del Ciampo JO, Kravicz M, Bentley MVLB. Nanostructured lipid carrier co-delivering tacrolimus and TNF-α siRNA as an innovate approach to psoriasis. Drug Deliv Transl Res 2020; 10:646-660. [DOI: 10.1007/s13346-020-00723-6] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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Ewe A, Noske S, Karimov M, Aigner A. Polymeric Nanoparticles Based on Tyrosine-Modified, Low Molecular Weight Polyethylenimines for siRNA Delivery. Pharmaceutics 2019; 11:pharmaceutics11110600. [PMID: 31726756 PMCID: PMC6920781 DOI: 10.3390/pharmaceutics11110600] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2019] [Revised: 11/06/2019] [Accepted: 11/08/2019] [Indexed: 01/02/2023] Open
Abstract
A major hurdle for exploring RNA interference (RNAi) in a therapeutic setting is still the issue of in vivo delivery of small RNA molecules (siRNAs). The chemical modification of polyethylenimines (PEIs) offers a particularly attractive avenue towards the development of more efficient non-viral delivery systems. Here, we explore tyrosine-modified polyethylenimines with low or very low molecular weight (P2Y, P5Y, P10Y) for siRNA delivery. In comparison to their respective parent PEI, they reveal considerably increased knockdown efficacies and very low cytotoxicity upon tyrosine modification, as determined in different reporter and wildtype cell lines. The delivery of siRNAs targeting the anti-apoptotic oncogene survivin or the serine/threonine-protein kinase PLK1 (polo-like kinase 1; PLK-1) oncogene reveals strong inhibitory effects in vitro. In a therapeutic in vivo setting, profound anti-tumor effects in a prostate carcinoma xenograft mouse model are observed upon systemic application of complexes for survivin or PLK1 knockdown, in the absence of in vivo toxicity. We thus demonstrate the tyrosine-modification of (very) low molecular weight PEIs for generating efficient nanocarriers for siRNA delivery in vitro and in vivo, present data on their physicochemical and biological properties, and show their efficacy as siRNA therapeutic in vivo, in the absence of adverse effects.
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Affiliation(s)
- Alexander Ewe
- Rudolf-Boehm-Institute for Pharmacology and Toxicology, Faculty of Medicine, Clinical Pharmacology, Leipzig University, 04107 Leipzig, Germany; (A.E.); (S.N.); (M.K.)
| | - Sandra Noske
- Rudolf-Boehm-Institute for Pharmacology and Toxicology, Faculty of Medicine, Clinical Pharmacology, Leipzig University, 04107 Leipzig, Germany; (A.E.); (S.N.); (M.K.)
- Faculty of Chemistry, Technical University Kaiserslautern, 67663 Kaiserslautern, Germany
| | - Michael Karimov
- Rudolf-Boehm-Institute for Pharmacology and Toxicology, Faculty of Medicine, Clinical Pharmacology, Leipzig University, 04107 Leipzig, Germany; (A.E.); (S.N.); (M.K.)
| | - Achim Aigner
- Rudolf-Boehm-Institute for Pharmacology and Toxicology, Faculty of Medicine, Clinical Pharmacology, Leipzig University, 04107 Leipzig, Germany; (A.E.); (S.N.); (M.K.)
- Correspondence: ; Tel.: +49-(0)341-9724661
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Jalageri MD, Puttaiahgowda YM, Parambil AM, Varadavenkatesan T. Synthesis and fabrication of highly functionalized Jeffamine antimicrobial polymeric coating. POLYM ADVAN TECHNOL 2019. [DOI: 10.1002/pat.4592] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Manohara Dhulappa Jalageri
- Department of ChemistryManipal Institute of Technology, Manipal Academy of Higher Education Manipal India
| | | | | | - Thivaharan Varadavenkatesan
- Department of BiotechnologyManipal Institute of Technology, Manipal Academy of Higher Education Manipal India
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Gomez JP, Tresset G, Pichon C, Midoux P. Improved histidinylated lPEI polyplexes for skeletal muscle cells transfection. Int J Pharm 2019; 559:58-67. [DOI: 10.1016/j.ijpharm.2019.01.003] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2018] [Revised: 12/21/2018] [Accepted: 01/08/2019] [Indexed: 01/19/2023]
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Anchordoquy JM, Anchordoquy JP, Nikoloff N, Gambaro R, Padula G, Seoane A, Furnus C. Doramectin induced cytotoxic and genotoxic effects on bovine peripheral lymphocytes and cumulus cells in vitro. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART. B, PESTICIDES, FOOD CONTAMINANTS, AND AGRICULTURAL WASTES 2019; 54:147-154. [PMID: 30668218 DOI: 10.1080/03601234.2018.1559569] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
The effect of doramectin (DOR) was tested on two experimental somatic bovine cells in vitro: peripheral lymphocytes (PL) and cumulus cells (CC). The cytotoxicity and genotoxicity of DOR were assessed using 3-(4,5-dimethyl-2-thiazolyl)-2,5-diphenyl-2H-tetrazolium bromide (MTT) assay, single cell gel electrophoresis assay (SCGE) and cytokinesis-block micronucleus cytome (CBMN Cyt) assay. Both cells were treated with three concentrations of DOR (20, 40, 60 ng mL-1) for 24 h. The results obtained from PL demonstrated that DOR was able to induce cytotoxic effect and DNA damage with all concentrations tested. Additionally, DOR increased micronuclei (MNi) frequency and nuclear buds (NBuds) with 20, 40, 60 ng mL-1, and nucleoplasmic bridges (NPBs) only with 40 ng mL-1. On the other hand, the three concentrations of DOR were not able to induce cytotoxic effect and DNA damage using SCGE in the bovine CC. Nevertheless, the two higher concentrations of DOR (20, 40 µg mL-1) significantly increased the frequency of micronucleus formation in bovine CC. These results represent the first experimental evidence of genotoxic and cytotoxic effects exerted by DOR on bovine PL and CC.
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Affiliation(s)
- Juan Mateo Anchordoquy
- a Instituto de Genética Veterinaria "Ing. Fernando N Dulout" (UNLP-CONICET-CONICET LA PLATA), Facultad de Ciencias Veterinarias - UNLP , IGEVET , La Plata , Buenos Aires , Argentina
| | - Juan Patricio Anchordoquy
- a Instituto de Genética Veterinaria "Ing. Fernando N Dulout" (UNLP-CONICET-CONICET LA PLATA), Facultad de Ciencias Veterinarias - UNLP , IGEVET , La Plata , Buenos Aires , Argentina
| | - Noelia Nikoloff
- a Instituto de Genética Veterinaria "Ing. Fernando N Dulout" (UNLP-CONICET-CONICET LA PLATA), Facultad de Ciencias Veterinarias - UNLP , IGEVET , La Plata , Buenos Aires , Argentina
| | - Rocío Gambaro
- a Instituto de Genética Veterinaria "Ing. Fernando N Dulout" (UNLP-CONICET-CONICET LA PLATA), Facultad de Ciencias Veterinarias - UNLP , IGEVET , La Plata , Buenos Aires , Argentina
| | - Gisel Padula
- a Instituto de Genética Veterinaria "Ing. Fernando N Dulout" (UNLP-CONICET-CONICET LA PLATA), Facultad de Ciencias Veterinarias - UNLP , IGEVET , La Plata , Buenos Aires , Argentina
- b Facultad de Ciencias Naturales y Museo - UNLP , Plata , Buenos Aires , La Argentina
| | - Analía Seoane
- a Instituto de Genética Veterinaria "Ing. Fernando N Dulout" (UNLP-CONICET-CONICET LA PLATA), Facultad de Ciencias Veterinarias - UNLP , IGEVET , La Plata , Buenos Aires , Argentina
| | - Cecilia Furnus
- a Instituto de Genética Veterinaria "Ing. Fernando N Dulout" (UNLP-CONICET-CONICET LA PLATA), Facultad de Ciencias Veterinarias - UNLP , IGEVET , La Plata , Buenos Aires , Argentina
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Kim KR, Röthlisberger P, Kang SJ, Nam K, Lee S, Hollenstein M, Ahn DR. Shaping Rolling Circle Amplification Products into DNA Nanoparticles by Incorporation of Modified Nucleotides and Their Application to In Vitro and In Vivo Delivery of a Photosensitizer. Molecules 2018; 23:molecules23071833. [PMID: 30041480 PMCID: PMC6099487 DOI: 10.3390/molecules23071833] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2018] [Revised: 07/17/2018] [Accepted: 07/20/2018] [Indexed: 12/31/2022] Open
Abstract
Rolling circle amplification (RCA) is a robust way to generate DNA constructs, which are promising materials for biomedical applications including drug delivery because of their high biocompatibility. To be employed as a drug delivery platform, however, the DNA materials produced by RCA need to be shaped into nanoparticles that display both high cellular uptake efficiency and nuclease resistance. Here, we showed that the DNA nanoparticles (DNPs) can be prepared with RCA and modified nucleotides that have side-chains appended on the nucleobase are capable of interacting with the DNA strands of the resulting RCA products. The incorporation of the modified nucleotides improved cellular uptake efficiency and nuclease resistance of the DNPs. We also demonstrated that these DNPs could be employed as carriers for the delivery of a photosensitizer into cancer cells to achieve photodynamic therapy upon irradiation at both the in vitro and in vivo levels.
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Affiliation(s)
- Kyoung-Ran Kim
- Center for Theragnosis, Biomedical Research Institute, Korea Institute of Science and Technology (KIST), Hwarangno 14-gil 5, Seongbuk-gu, Seoul 02792, Korea.
| | - Pascal Röthlisberger
- Department of Structural Biology and Chemistry, Laboratory for Bioorganic Chemistry of Nucleic Acids, Institut Pasteur, CNRS UMR3523, 28, rue du Docteur Roux, 75724 Paris CEDEX 15, France.
| | - Seong Jae Kang
- Center for Theragnosis, Biomedical Research Institute, Korea Institute of Science and Technology (KIST), Hwarangno 14-gil 5, Seongbuk-gu, Seoul 02792, Korea.
| | - Kihwan Nam
- Center for Bionics, Biomedical Research Institute, Korea Institute of Science and Technology (KIST), Hwarangno 14-gil 5, Seongbuk-gu, Seoul 02792, Korea.
| | - Sangyoup Lee
- Center for Bionics, Biomedical Research Institute, Korea Institute of Science and Technology (KIST), Hwarangno 14-gil 5, Seongbuk-gu, Seoul 02792, Korea.
| | - Marcel Hollenstein
- Department of Structural Biology and Chemistry, Laboratory for Bioorganic Chemistry of Nucleic Acids, Institut Pasteur, CNRS UMR3523, 28, rue du Docteur Roux, 75724 Paris CEDEX 15, France.
| | - Dae-Ro Ahn
- Center for Theragnosis, Biomedical Research Institute, Korea Institute of Science and Technology (KIST), Hwarangno 14-gil 5, Seongbuk-gu, Seoul 02792, Korea.
- Division of Biomedical Science and Technology, KIST School, Korea University of Science and Technology (UST), Hwarangno 14-gil 5, Seongbuk-gu, Seoul 02792, Korea.
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