451
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Ghilardi A, Pezzoli D, Bellucci MC, Malloggi C, Negri A, Sganappa A, Tedeschi G, Candiani G, Volonterio A. Synthesis of Multifunctional PAMAM–Aminoglycoside Conjugates with Enhanced Transfection Efficiency. Bioconjug Chem 2013; 24:1928-36. [DOI: 10.1021/bc4003635] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Alessandra Ghilardi
- Department
of Chemistry, Materials, and Chemical Engineering “G. Natta”, Politecnico di Milano, via Mancinelli 7, 20131 Milano, Italy
| | - Daniele Pezzoli
- Politecnico
di Milano Research Unit, National Interuniversity Consortium of Materials Science and Technology - INSTM, via Mancinelli 7, 20131 Milano, Italy
| | - Maria Cristina Bellucci
- Department
of Food, Environmental and Nutritional Sciences, Università degli Studi di Milano, via Celoria 2, 20133 Milano, Italy
| | - Chiara Malloggi
- Department
of Chemistry, Materials, and Chemical Engineering “G. Natta”, Politecnico di Milano, via Mancinelli 7, 20131 Milano, Italy
| | - Armando Negri
- Department
of Veterinary Science and Public Health, Università degli Studi di Milano, via Celoria 10, 20133 Milano, Italy
| | - Aurora Sganappa
- Department
of Chemistry, Materials, and Chemical Engineering “G. Natta”, Politecnico di Milano, via Mancinelli 7, 20131 Milano, Italy
| | - Gabriella Tedeschi
- Department
of Veterinary Science and Public Health, Università degli Studi di Milano, via Celoria 10, 20133 Milano, Italy
| | - Gabriele Candiani
- Department
of Chemistry, Materials, and Chemical Engineering “G. Natta”, Politecnico di Milano, via Mancinelli 7, 20131 Milano, Italy
- Politecnico
di Milano Research Unit, National Interuniversity Consortium of Materials Science and Technology - INSTM, via Mancinelli 7, 20131 Milano, Italy
| | - Alessandro Volonterio
- Department
of Chemistry, Materials, and Chemical Engineering “G. Natta”, Politecnico di Milano, via Mancinelli 7, 20131 Milano, Italy
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452
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Jones CH, Chen CK, Ravikrishnan A, Rane S, Pfeifer BA. Overcoming nonviral gene delivery barriers: perspective and future. Mol Pharm 2013; 10:4082-98. [PMID: 24093932 DOI: 10.1021/mp400467x] [Citation(s) in RCA: 282] [Impact Index Per Article: 25.6] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
A key end goal of gene delivery research is to develop clinically relevant vectors that can be used to combat elusive diseases such as AIDS. Despite promising engineering strategies, efficiency and ultimately gene modulation efficacy of nonviral vectors have been hindered by numerous in vitro and in vivo barriers that have resulted in subviral performance. In this perspective, we concentrate on the gene delivery barriers associated with the two most common classes of nonviral vectors, cationic-based lipids and polymers. We present the existing delivery barriers and summarize current vector-specific strategies to overcome said barriers.
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Affiliation(s)
- Charles H Jones
- Department of Chemical and Biological Engineering, University at Buffalo, State University of New York , Buffalo, New York, 14260-4200, United States
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453
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Chen CK, Jones CH, Mistriotis P, Yu Y, Ma X, Ravikrishnan A, Jiang M, Andreadis ST, Pfeifer BA, Cheng C. Poly(ethylene glycol)-block-cationic polylactide nanocomplexes of differing charge density for gene delivery. Biomaterials 2013; 34:9688-99. [PMID: 24034497 DOI: 10.1016/j.biomaterials.2013.08.063] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2013] [Accepted: 08/20/2013] [Indexed: 12/17/2022]
Abstract
Representing a new type of biodegradable cationic block copolymer, well-defined poly(ethylene glycol)-block-cationic polylactides (PEG-b-CPLAs) with tertiary amine-based cationic groups were synthesized by thiol-ene functionalization of an allyl-functionalized diblock precursor. Subsequently the application of PEG-b-CPLAs as biodegradable vectors for the delivery of plasmid DNAs (pDNAs) was investigated. Via the formation of PEG-b-CPLA:pDNA nanocomplexes by spontaneous electrostatic interaction, pDNAs encoding luciferase or enhanced green fluorescent protein were successfully delivered to four physiologically distinct cell lines (including macrophage, fibroblast, epithelial, and stem cell). Formulated nanocomplexes demonstrated high levels of transfection with low levels of cytotoxicity and hemolysis when compared to a positive control. Biophysical characterization of charge densities of nanocomplexes at various polymer:pDNA weight ratios revealed a positive correlation between surface charge and gene delivery. Nanocomplexes with high surface charge densities were utilized in an in vitro serum gene delivery inhibition assay, and effective gene delivery was observed despite high levels of serum. Overall, these results help to elucidate the influence of charge, size, and PEGylation of nanocomplexes upon the delivery of nucleic acids in physiologically relevant conditions.
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Affiliation(s)
- Chih-Kuang Chen
- Department of Chemical and Biological Engineering, University at Buffalo, The State University of New York, Amherst, NY 14260, USA
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454
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Gajbhiye V, Gong S. Lectin functionalized nanocarriers for gene delivery. Biotechnol Adv 2013; 31:552-62. [DOI: 10.1016/j.biotechadv.2013.01.005] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2012] [Revised: 01/03/2013] [Accepted: 01/09/2013] [Indexed: 01/01/2023]
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455
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Complexation of fisetin with novel cyclosophoroase dimer to improve solubility and bioavailability. Carbohydr Polym 2013; 97:196-202. [DOI: 10.1016/j.carbpol.2013.04.066] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2013] [Accepted: 04/17/2013] [Indexed: 11/30/2022]
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456
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Pärn K, Viru L, Lehto T, Oskolkov N, Langel Ü, Merits A. Transfection of infectious RNA and DNA/RNA layered vectors of semliki forest virus by the cell-penetrating peptide based reagent PepFect6. PLoS One 2013; 8:e69659. [PMID: 23861978 PMCID: PMC3704629 DOI: 10.1371/journal.pone.0069659] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2013] [Accepted: 06/11/2013] [Indexed: 12/25/2022] Open
Abstract
Viral vectors have a wide variety of applications ranging from fundamental studies of viruses to therapeutics. Recombinant viral vectors are usually constructed using methods of reverse genetics to obtain the genetic material of the viral vector. The physicochemical properties of DNA and RNA make them unable to access cells by themselves, and they require assistance to achieve intracellular delivery. Non-viral delivery vectors can be used for this purpose if they enable efficient intracellular delivery without interfering with the viral life cycle. In this report, we utilize Semliki Forest virus (genus alphavirus) based RNA and DNA vectors to study the transfection efficiency of the non-viral cell-penetrating peptide-based delivery vector PepFect6 in comparison with that of the cationic liposome-based Lipofectamine 2000, and assess their impact on viral replication. The optimal conditions for transfection were determined for both reagents. These results demonstrate, for the first time, the ability of PepFect6 to transport large (13-19 kbp) constructs across the cell membrane. Curiously, DNA molecules delivered using the PepFect6 reagent were found to be transported to the cell nucleus approximately 1.5 hours later than DNA molecules delivered using the Lipofectamine 2000 reagent. Finally, although both PepFect6 and Lipofectamine 2000 reagents can be used for alphavirus research, PepFect6 is preferred because it does not induce changes in the normal cellular phenotype and it does not affect the normal replication-infection cycle of viruses in previously transfected cells.
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Affiliation(s)
- Kalle Pärn
- Institute of Technology, University of Tartu, Tartu, Estonia
- * E-mail:
| | - Liane Viru
- Institute of Technology, University of Tartu, Tartu, Estonia
| | - Taavi Lehto
- Institute of Technology, University of Tartu, Tartu, Estonia
| | - Nikita Oskolkov
- Institute of Technology, University of Tartu, Tartu, Estonia
| | - Ülo Langel
- Institute of Technology, University of Tartu, Tartu, Estonia
- Department of Neurochemistry, Stockholm University, Stockholm, Sweden
| | - Andres Merits
- Institute of Technology, University of Tartu, Tartu, Estonia
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457
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Ma D, Zhao Y, Zhou XY, Lin QM, Zhang Y, Lin JT, Xue W. Photoenhanced Gene Transfection by a Star-Shaped Polymer Consisting of a Porphyrin Core and Poly(L
-lysine) Dendron Arms. Macromol Biosci 2013; 13:1221-7. [DOI: 10.1002/mabi.201300139] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2013] [Revised: 04/13/2013] [Indexed: 01/08/2023]
Affiliation(s)
- Dong Ma
- Key Laboratory of Biomaterials of Guangdong Higher Education Institutes, Department of Biomedical Engineering; Jinan University; Guangzhou 510632 China
| | - Yi Zhao
- Department of Microbiology and Immunology; School of Basic Medicine, Guangdong Medical College; Dongguan 523808 China
| | - Xiao-Yan Zhou
- Key Laboratory of Biomaterials of Guangdong Higher Education Institutes, Department of Biomedical Engineering; Jinan University; Guangzhou 510632 China
| | - Qian-Ming Lin
- Key Laboratory of Biomaterials of Guangdong Higher Education Institutes, Department of Biomedical Engineering; Jinan University; Guangzhou 510632 China
| | - Yi Zhang
- Key Laboratory of Biomaterials of Guangdong Higher Education Institutes, Department of Biomedical Engineering; Jinan University; Guangzhou 510632 China
| | - Jian-Tao Lin
- Traditional Chinese Medicine and New Drug Research Institute; Guangdong Medical College; Dongguan 523808 China
| | - Wei Xue
- Key Laboratory of Biomaterials of Guangdong Higher Education Institutes, Department of Biomedical Engineering; Jinan University; Guangzhou 510632 China
- Institute of Life and Health Engineering, Key Laboratory of Functional Protein Research of Guangdong Higher Education Institutes; Jinan University; Guangzhou 510632 China
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458
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Sarkar K, Kundu PP. PAMAM conjugated chitosan through naphthalimide moiety for enhanced gene transfection efficiency. Carbohydr Polym 2013; 98:495-504. [PMID: 23987374 DOI: 10.1016/j.carbpol.2013.06.006] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2013] [Revised: 06/04/2013] [Accepted: 06/07/2013] [Indexed: 12/17/2022]
Abstract
Development of efficient and safe gene carrier is the main hurdle for successful gene therapy till date. Poor water solubility and low transfection efficiency of chitosan are the main drawbacks to be efficient gene carrier for successful gene therapy. In this work, PAMAM conjugated chitosan was prepared through naphthalimide moiety by simple substitution reaction. The synthesis of the chitosan conjugates was confirmed by FTIR, (1)H NMR and XRD analyses. The conjugates showed enhanced DNA binding capability compared to that of unmodified chitosan. Moreover, the conjugates showed minimal cytotoxicity compared to that of polyethyleneimine (PEI, 25 kDa) and also showed good blood compatibility with negligible haemolysis. The transfection efficiency of the conjugate was significantly increased compared to that of unmodified chitosan and it also surpassed the transfection efficiency by PEI. Therefore, PAMAM conjugated chitosan can be used safely as alternate efficient gene delivery vector in gene therapy.
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Affiliation(s)
- Kishor Sarkar
- Department of Polymer Science & Technology, University of Calcutta, 92, A.P.C. Road, Kolkata 700009, West Bengal, India
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459
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Cotanda P, Wright DB, Tyler M, O'Reilly RK. A comparative study of the stimuli-responsive properties of DMAEA and DMAEMA containing polymers. ACTA ACUST UNITED AC 2013. [DOI: 10.1002/pola.26730] [Citation(s) in RCA: 73] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Pepa Cotanda
- Department of Chemistry; University of Warwick; Gibbet Hill Road Coventry CV4 7AL United Kingdom
| | - Daniel B. Wright
- Department of Chemistry; University of Warwick; Gibbet Hill Road Coventry CV4 7AL United Kingdom
| | - Martin Tyler
- Department of Chemistry; University of Warwick; Gibbet Hill Road Coventry CV4 7AL United Kingdom
| | - Rachel K. O'Reilly
- Department of Chemistry; University of Warwick; Gibbet Hill Road Coventry CV4 7AL United Kingdom
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460
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Huang SJ, Wang TP, Lue SI, Wang LF. Pentablock copolymers of pluronic F127 and modified poly(2-dimethyl amino)ethyl methacrylate for internalization mechanism and gene transfection studies. Int J Nanomedicine 2013; 8:2011-27. [PMID: 23745045 PMCID: PMC3671801 DOI: 10.2147/ijn.s44222] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Cationic polymers are one of the major nonviral gene delivery vectors investigated in the past decade. In this study, we synthesized several cationic copolymers using atom transfer radical polymerization (ATRP) for gene delivery vectors: pluronic F127-poly(dimethylaminoethyl methacrylate) (PF127-pDMAEMA), pluronic F127-poly (dimethylaminoethyl methacrylate-tert-butyl acrylate) (PF127-p(DMAEMA-tBA)), and pluronic F127-poly(dimethylaminoethyl methacrylate-acrylic acid) (PF127-p(DMAEMA-AA)). The copolymers showed high buffering capacity and efficiently complexed with plasmid deoxyribonucleic acid (pDNA) to form nanoparticles 80–180 nm in diameter and with positive zeta potentials. In the absence of 10% fetal bovine serum, PF127-p(DMAEMA-AA) showed the highest gene expression and the lowest cytotoxicity in 293T cells. After acrylic acid groups had been linked with a fluorescent dye, the confocal laser scanning microscopic image showed that PF127-p(DMAEMA-AA)/pDNA could efficiently enter the cells. Both clathrin-mediated and caveolae-mediated endocytosis mechanisms were involved. Our results showed that PF127-p(DMAEMA-AA) has great potential to be a gene delivery vector.
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Affiliation(s)
- Shih-Jer Huang
- Department of Medicinal and Applied Chemistry, Kaohsiung Medical University, Kaohsiung, Taiwan
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461
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Ivanova ED, Ivanova NI, Apostolova MD, Turmanova SC, Dimitrov IV. Polymer gene delivery vectors encapsulated in thermally sensitive bioreducible shell. Bioorg Med Chem Lett 2013; 23:4080-4. [PMID: 23768908 DOI: 10.1016/j.bmcl.2013.05.055] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2013] [Revised: 05/14/2013] [Accepted: 05/15/2013] [Indexed: 11/28/2022]
Abstract
Stable, nanosized polyelectrolyte complexes between rationally designed thermally sensitive block copolymers and plasmid DNA (polyplexes) were formed and their in vitro transfection efficiency was tested. The polyplexes were further stabilized through encapsulation into a biodegradable polymer shell. Although reduced as compared to that of the corresponding polyplexes, the encapsulated systems still show acceptable transfection efficiency. That opens the possibility to tune the balance between the safe transport and efficient delivery of DNA into the cells.
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Affiliation(s)
- Emilya D Ivanova
- Institute of Polymers, Bulgarian Academy of Sciences, Sofia 1113, Bulgaria
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462
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Li H, Cortez MA, Phillips HR, Wu Y, Reineke TM. Poly(2 deoxy 2 methacrylamido glucopyranose) b Poly(methacrylate amine)s: Optimization of Diblock Glycopol ycations for Nucleic Acid Delivery. ACS Macro Lett 2013; 2:10.1021/mz300660t. [PMID: 24179703 PMCID: PMC3810285 DOI: 10.1021/mz300660t] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
A series of nine poly(2-deoxy-2-methacrylamido glucopyranose)-b-poly(methacrylate amine) diblock copolycations The cationic block was varied in length and in the degree of methyl group substitution (secondary, tertiary, quaternary) on the pendant amine in an effort to optimize the structure and activity for plasmid DNA delivery. Upon a thorough kinetic study of polymerization for each polymer, the glycopolymers were prepared with well-controlled Mn and Ð. The binding and colloidal stability of the polymer-pDNA nanocomplexes at different N/P ratios and in biological media has been investigated using gel electrophoresis and light scattering techniques. The toxicity and transfection efficiency of the polyplexes has been evaluated with Hep G2 (human liver hepatocellular carcinoma) cells; several polymers displayed excellent delivery and toxicity profiles justifying their further development for in vivo gene therapy.
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Affiliation(s)
- Haibo Li
- Department of Chemistry, University of Minnesota, 207 Pleasant Street SE, Minneapolis, MN 55455, United States
| | - Mallory A. Cortez
- Department of Chemistry, University of Minnesota, 207 Pleasant Street SE, Minneapolis, MN 55455, United States
| | - Haley R. Phillips
- Department of Chemistry, University of Minnesota, 207 Pleasant Street SE, Minneapolis, MN 55455, United States
| | - Yaoying Wu
- Department of Chemistry, University of Minnesota, 207 Pleasant Street SE, Minneapolis, MN 55455, United States
| | - Theresa M. Reineke
- Department of Chemistry, University of Minnesota, 207 Pleasant Street SE, Minneapolis, MN 55455, United States
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463
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Yuan W, Zou H, Guo W, Shen T, Ren J. Supramolecular micelles with dual temperature and redox responses for multi-controlled drug release. Polym Chem 2013. [DOI: 10.1039/c3py00211j] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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464
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Zhao Y, Lord MS, Stenzel MH. A polyion complex micelle with heparin for growth factor delivery and uptake into cells. J Mater Chem B 2013; 1:1635-1643. [DOI: 10.1039/c3tb00360d] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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465
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Tripathi SK, Gupta S, Gupta KC, Kumar P. Efficient DNA and siRNA delivery with biodegradable cationic hyaluronic acid conjugates. RSC Adv 2013. [DOI: 10.1039/c3ra42013b] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
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