51
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Cyclodextrin containing biodegradable particles: From preparation to drug delivery applications. Int J Pharm 2014; 461:351-66. [DOI: 10.1016/j.ijpharm.2013.12.004] [Citation(s) in RCA: 70] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2013] [Revised: 12/05/2013] [Accepted: 12/07/2013] [Indexed: 01/11/2023]
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52
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Hong BJ, Chipre AJ, Nguyen ST. Acid-degradable polymer-caged lipoplex (PCL) platform for siRNA delivery: facile cellular triggered release of siRNA. J Am Chem Soc 2013; 135:17655-8. [PMID: 24000948 DOI: 10.1021/ja404491r] [Citation(s) in RCA: 62] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
An acid-degradable polymer-caged lipoplex (PCL) platform consisting of a cationic lipoplex core and a biocompatible, pH-responsive polymer shell has been developed for the effective delivery of small interfering RNA (siRNA) through a combination of facile loading, rapid acid-triggered release, cellular internalization, and effective endosomal escape. In vitro testing of this degradable PCL delivery platform reveals ∼45- and ∼2.5-fold enhancement of enhanced green fluorescent protein knockdown in cancer cells in comparison to either free siRNA or siRNA-loaded non-acid-degradable lipoplex formulations, respectively.
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Affiliation(s)
- Bong Jin Hong
- Department of Chemistry, Northwestern University , 2145 Sheridan Road, Evanston, Illinois 60208-3113, United States
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53
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Sharma VD, Aifuwa EO, Heiney PA, Ilies MA. Interfacial engineering of pyridinium gemini surfactants for the generation of synthetic transfection systems. Biomaterials 2013; 34:6906-21. [DOI: 10.1016/j.biomaterials.2013.05.029] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2013] [Accepted: 05/16/2013] [Indexed: 11/16/2022]
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54
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Perry SL, Neumann SG, Neumann T, Cheng K, Ni J, Weinstein JR, Schaffer DV, Tirrell M. Challenges in nucleic acid-lipid films for transfection. AIChE J 2013. [DOI: 10.1002/aic.14198] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
| | - Surekha G. Neumann
- Dept. of Chemistry and Biochemistry; University of California at Santa Barbara; Santa Barbara; CA; 93106
| | | | - Karen Cheng
- Dept. of Bioengineering; University of California at Berkeley; Berkeley; CA; 94720
| | - Jennifer Ni
- Dept. of Bioengineering; University of California at Berkeley; Berkeley; CA; 94720
| | - John R. Weinstein
- Dept. of Bioengineering; University of California at Berkeley; Berkeley; CA; 94720
| | - David V. Schaffer
- Dept. of Bioengineering and Dept of Chemical and Biomolecular Engineering; University of California at Berkeley; Berkeley; CA; 94720
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55
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O'Mahony AM, Godinho BMDC, Cryan JF, O'Driscoll CM. Non-viral nanosystems for gene and small interfering RNA delivery to the central nervous system: formulating the solution. J Pharm Sci 2013; 102:3469-84. [PMID: 23893329 DOI: 10.1002/jps.23672] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2013] [Revised: 06/12/2013] [Accepted: 06/25/2013] [Indexed: 01/06/2023]
Abstract
The application of gene and RNAi-based therapies to the central nervous system (CNS), for neurological and neurodegenerative disease, offers immense potential. The issue of delivery to the target site remains the single greatest barrier to achieving this. There are challenges to gene and siRNA (small interfering RNA) delivery which are specific to the CNS, including the post-mitotic nature of neurons, their resistance to transfection and the blood-brain barrier. Viral vectors are highly efficient and have been used extensively in pre-clinical studies for CNS diseases. However, non-viral delivery offers an exciting alternative. In this review, we will discuss the extracellular and intracellular barriers to gene and siRNA delivery in the CNS. Our focus will be directed towards various non-viral strategies used to overcome these barriers. In this regard, we describe selected non-viral vectors and categorise them according to the barriers that they overcome by their formulation and targeting strategies. Some of the difficulties associated with non-viral vectors such as toxicity, large-scale manufacture and route of administration are discussed. We provide examples of optimised formulation approaches and discuss regulatory hurdles to clinical validation. Finally, we outline the components of an "ideal" formulation, based on a critical analysis of the approaches highlighted throughout the review.
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Affiliation(s)
- Aoife M O'Mahony
- Pharmacodelivery Group, School of Pharmacy, University College Cork, Ireland
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56
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Savarala S, Brailoiu E, Wunder SL, Ilies MA. Tuning the self-assembling of pyridinium cationic lipids for efficient gene delivery into neuronal cells. Biomacromolecules 2013; 14:2750-64. [PMID: 23834644 DOI: 10.1021/bm400591d] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
We are reporting a new set of biocompatible, low-toxicity pyridinium cationic lipids based on a dopamine backbone on which hydrophobic alkyl tails are attached via an ether linkage. Due to their optimized hydrophilic/hydrophobic interface and packing parameter, the new lipids are able to strongly self-assemble either alone or when coformulated with colipids DOPE or cholesterol. The supra-molecular assemblies generated with the novel pyridinium amphiphiles were characterized in bulk and in solution via a combination of techniques including DSC, nanoDSC, SAXS, TOPM, TEM, DLS, zeta potential, and electrophoretic mobility measurements. These cationic bilayers can efficiently condense and deliver DNA to a large variety of cell lines, as proven by our self-assembling/physicochemical/biological correlation study. Using the luciferase reporter gene plasmid, we have also conducted a comprehensive structure-activity relationship study, which identified the best structural parameters and formulations for efficient and nontoxic gene delivery. Several formulations greatly surpassed established transfection systems with proved in vitro and in vivo efficiency, being able to transfect a large variety of malignant cells even in the presence of elevated levels of serum. The most efficient formulation was able to transfect selectively primary rat dopaminergic neurons harvested from nucleus accumbens, and neurons from the frontal cortex, a premise that recommends these synthetic vectors for future in vivo delivery studies for neuronal reprogramming.
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Affiliation(s)
- Sushma Savarala
- Department of Chemistry, College of Science and Technology, Temple University, Philadelphia, PA 19122, USA
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57
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Miller AD. Lipid-based nanoparticles in cancer diagnosis and therapy. JOURNAL OF DRUG DELIVERY 2013; 2013:165981. [PMID: 23936655 PMCID: PMC3725835 DOI: 10.1155/2013/165981] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/07/2012] [Revised: 05/07/2013] [Accepted: 05/24/2013] [Indexed: 11/17/2022]
Abstract
Today, researchers are constantly developing new nanomaterials, nanodevices, and nanoparticles to meet unmet needs in the delivery of therapeutic agents and imaging agents for cancer therapy and diagnosis, respectively. Of particular interest here are lipid-based nanoparticles (LNPs) that are genuine particles (approximately 100 nm in dimension) assembled from varieties of lipid and other chemical components that act collectively to overcome biological barriers (biobarriers), in order for LNPs to preferentially accumulate in or around disease-target cells for the functional delivery of therapeutic agents for treatment or of imaging agents for diagnosis. The capabilities of these LNPs will clearly vary depending on functional requirements, but the nanoscale allows for an impressive level of diversity in capabilities to enable corresponding LNPs to address an equally diverse range of functional requirements. Accordingly, LNPs should be considered appropriate vehicles to provide an integrated, personalized approach to cancer diagnosis and therapy in future cancer disease management.
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Affiliation(s)
- Andrew D. Miller
- Institute of Pharmaceutical Science, King's College London, Franklin-Wilkins Building, Waterloo Campus, 150 Stamford Street, London SE1 9NH, UK
- GlobalAcorn Ltd., London, UK
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58
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O’Mahony AM, Ogier J, Darcy R, Cryan JF, O’Driscoll CM. Cationic and PEGylated Amphiphilic Cyclodextrins: Co-Formulation Opportunities for Neuronal Sirna Delivery. PLoS One 2013; 8:e66413. [PMID: 23805220 PMCID: PMC3689829 DOI: 10.1371/journal.pone.0066413] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2013] [Accepted: 05/06/2013] [Indexed: 12/16/2022] Open
Abstract
Optimising non-viral vectors for neuronal siRNA delivery presents a significant challenge. Here, we investigate a co-formulation, consisting of two amphiphilic cyclodextrins (CDs), one cationic and the other PEGylated, which were blended together for siRNA delivery to a neuronal cell culture model. Co-formulated CD-siRNA complexes were characterised in terms of size, charge and morphology. Stability in salt and serum was also examined. Uptake was determined by flow cytometry and toxicity was measured by MTT assay. Knockdown of a luciferase reporter gene was used as a measure of gene silencing efficiency. Incorporation of a PEGylated CD in the formulation had significant effects on the physical and biological properties of CD.siRNA complexes. Co-formulated complexes exhibited a lower surface charge and greater stability in a high salt environment. However, the inclusion of the PEGylated CD also dramatically reduced gene silencing efficiency due to its effects on neuronal uptake. The co-formulation strategy for cationic and PEGylated CDs improved the stability of the CD.siRNA delivery systems, although knockdown efficiency was impaired. Future work will focus on the addition of targeting ligands to the co-formulated complexes to restore transfection capabilities.
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Affiliation(s)
- Aoife M. O’Mahony
- Pharmacodelivery group, School of Pharmacy, University College Cork, Cork, Ireland
| | - Julien Ogier
- School of Chemistry and Chemical Biology, University College Dublin, Dublin, Ireland
| | - Raphael Darcy
- School of Chemistry and Chemical Biology, University College Dublin, Dublin, Ireland
| | - John F. Cryan
- Dept. of Anatomy and Neuroscience, University College Cork, Cork, Ireland
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59
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Kwok A, Eggimann GA, Reymond JL, Darbre T, Hollfelder F. Peptide dendrimer/lipid hybrid systems are efficient DNA transfection reagents: structure--activity relationships highlight the role of charge distribution across dendrimer generations. ACS NANO 2013; 7:4668-4682. [PMID: 23682947 PMCID: PMC3715887 DOI: 10.1021/nn400343z] [Citation(s) in RCA: 68] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/22/2013] [Accepted: 04/30/2013] [Indexed: 06/02/2023]
Abstract
Efficient DNA delivery into cells is the prerequisite of the genetic manipulation of organisms in molecular and cellular biology as well as, ultimately, in nonviral gene therapy. Current reagents, however, are relatively inefficient, and structure-activity relationships to guide their improvement are hard to come by. We now explore peptide dendrimers as a new type of transfection reagent and provide a quantitative framework for their evaluation. A collection of dendrimers with cationic and hydrophobic amino acid motifs (such as KK, KA, KH, KL, and LL) distributed across three dendrimer generations was synthesized by a solid-phase protocol that provides ready access to dendrimers in milligram quantities. In conjunction with a lipid component (DOTMA/DOPE), the best reagent, G1,2,3-KL ((LysLeu)8(LysLysLeu)4(LysLysLeu)2LysGlySerCys-NH2), improves transfection by 6-10-fold over commercial reagents under their respective optimal conditions. Emerging structure-activity relationships show that dendrimers with cationic and hydrophobic residues distributed in each generation are transfecting most efficiently. The trigenerational dendritic structure has an advantage over a linear analogue worth up to an order of magnitude. The success of placing the decisive cationic charge patterns in inner shells rather than previously on the surface of macromolecules suggests that this class of dendrimers significantly differs from existing transfection reagents. In the future, this platform may be tuned further and coupled to cell-targeting moieties to enhance transfection and cell specificity.
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Affiliation(s)
- Albert Kwok
- Department of Biochemistry, University of Cambridge, 80 Tennis Court Road, Cambridge CB2 1GA, United Kingdom
| | - Gabriela A. Eggimann
- Department of Chemistry & Biochemistry, University of Bern, Freiestrasse 3, CH-3012 Bern, Switzerland
| | - Jean-Louis Reymond
- Department of Chemistry & Biochemistry, University of Bern, Freiestrasse 3, CH-3012 Bern, Switzerland
| | - Tamis Darbre
- Department of Chemistry & Biochemistry, University of Bern, Freiestrasse 3, CH-3012 Bern, Switzerland
| | - Florian Hollfelder
- Department of Biochemistry, University of Cambridge, 80 Tennis Court Road, Cambridge CB2 1GA, United Kingdom
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60
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Bai J, Liu Y, Sun W, Chen J, Miller AD, Xu Y. Down-regulated lysosomal processing improved pegylated lipopolyplex-mediated gene transfection. J Gene Med 2013; 15:182-92. [DOI: 10.1002/jgm.2707] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2012] [Revised: 04/06/2013] [Accepted: 04/09/2013] [Indexed: 11/05/2022] Open
Affiliation(s)
| | - Yujie Liu
- School of Pharmacy; Shanghai Jiao Tong University; Shanghai; China
| | - Wenqiang Sun
- School of Pharmacy; Shanghai Jiao Tong University; Shanghai; China
| | - Jian Chen
- School of Pharmacy; Shanghai Jiao Tong University; Shanghai; China
| | | | - Yuhong Xu
- School of Pharmacy; Shanghai Jiao Tong University; Shanghai; China
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61
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Kolli S, Wong SP, Harbottle R, Johnston B, Thanou M, Miller AD. pH-triggered nanoparticle mediated delivery of siRNA to liver cells in vitro and in vivo. Bioconjug Chem 2013; 24:314-32. [PMID: 23305315 DOI: 10.1021/bc3004099] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Recently, we reported for the first time the development of pH-triggered nanoparticles for the functional delivery of small interfering RNA (siRNA) to liver for treatment of hepatitis B virus infections in vivo. Here, we report on systematic formulation and biophysical studies of three different pH-triggered nanoparticle formulations looking for ways to improve on the capabilities of our previous nanoparticle system. We demonstrate how pH-triggered, PEGylated siRNA nanoparticles stable with respect to aggregation in 80% serum can still release siRNA payload at pH 5.5 within 30 min. This capability allows functional delivery to cultured murine hepatocyte cells in vitro, despite a high degree of PEGylation (5 mol %). We also demonstrate that pH-triggered, PEGylated siRNA nanoparticles typically enter cells by clathrin-coated pit endocytosis, but functional delivery requires membrane fusion events (fusogenicity). Biodistribution studies indicate that >70% of our administered nanoparticles are found in liver hepatocytes, post intravenous administration. Pharmacodynamic experiments show siRNA delivery to murine liver effecting maximum knockdown 48 h post administration from a single dose, while control (nontriggered) nanoparticles require 96 h and two doses to demonstrate the same effect. We also describe an anti-hepatitis C virus (HCV) proof-of-concept experiment indicating the possibility of RNAi therapy for HCV infections using pH-triggered, PEGylated siRNA nanoparticles.
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Affiliation(s)
- Soumia Kolli
- Imperial College Genetic Therapies Centre, Department of Chemistry, Flowers Building, Armstrong Road, Imperial College London, London SW7 2AZ, United Kingdom
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62
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Salmaso S, Caliceti P. Stealth properties to improve therapeutic efficacy of drug nanocarriers. JOURNAL OF DRUG DELIVERY 2013; 2013:374252. [PMID: 23533769 PMCID: PMC3606770 DOI: 10.1155/2013/374252] [Citation(s) in RCA: 194] [Impact Index Per Article: 17.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/02/2012] [Accepted: 02/06/2013] [Indexed: 12/23/2022]
Abstract
Over the last few decades, nanocarriers for drug delivery have emerged as powerful tools with unquestionable potential to improve the therapeutic efficacy of anticancer drugs. Many colloidal drug delivery systems are underdevelopment to ameliorate the site specificity of drug action and reduce the systemic side effects. By virtue of their small size they can be injected intravenously and disposed into the target tissues where they release the drug. Nanocarriers interact massively with the surrounding environment, namely, endothelium vessels as well as cells and blood proteins. Consequently, they are rapidly removed from the circulation mostly by the mononuclear phagocyte system. In order to endow nanosystems with long circulation properties, new technologies aimed at the surface modification of their physicochemical features have been developed. In particular, stealth nanocarriers can be obtained by polymeric coating. In this paper, the basic concept underlining the "stealth" properties of drug nanocarriers, the parameters influencing the polymer coating performance in terms of opsonins/macrophages interaction with the colloid surface, the most commonly used materials for the coating process and the outcomes of this peculiar procedure are thoroughly discussed.
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Affiliation(s)
- Stefano Salmaso
- Department of Pharmaceutical and Pharmacological Sciences, University of Padua, Via F. Marzolo 5, 35131 Padova, Italy
| | - Paolo Caliceti
- Department of Pharmaceutical and Pharmacological Sciences, University of Padua, Via F. Marzolo 5, 35131 Padova, Italy
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63
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Yingyuad P, Mével M, Prata C, Furegati S, Kontogiorgis C, Thanou M, Miller AD. Enzyme-Triggered PEGylated pDNA-Nanoparticles for Controlled Release of pDNA in Tumors. Bioconjug Chem 2013; 24:343-62. [DOI: 10.1021/bc300419g] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Peerada Yingyuad
- Imperial College Genetic Therapies
Centre, Department of Chemistry, Imperial College London, London, SW7 2AZ, United Kingdom
| | - Mathieu Mével
- Imperial College Genetic Therapies
Centre, Department of Chemistry, Imperial College London, London, SW7 2AZ, United Kingdom
| | - Carla Prata
- Imperial College Genetic Therapies
Centre, Department of Chemistry, Imperial College London, London, SW7 2AZ, United Kingdom
| | - Stefan Furegati
- Imperial College Genetic Therapies
Centre, Department of Chemistry, Imperial College London, London, SW7 2AZ, United Kingdom
| | - Christos Kontogiorgis
- Imperial College Genetic Therapies
Centre, Department of Chemistry, Imperial College London, London, SW7 2AZ, United Kingdom
| | - Maya Thanou
- Institute of Pharmaceutical
Science, King’s College London,
Franklin-Wilkins Building, Waterloo Campus, 150 Stamford Street, London,
SE1 9NH, United Kingdom
| | - Andrew D. Miller
- Imperial College Genetic Therapies
Centre, Department of Chemistry, Imperial College London, London, SW7 2AZ, United Kingdom
- Institute of Pharmaceutical
Science, King’s College London,
Franklin-Wilkins Building, Waterloo Campus, 150 Stamford Street, London,
SE1 9NH, United Kingdom
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64
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How cationic lipids transfer nucleic acids into cells and across cellular membranes: Recent advances. J Control Release 2013; 166:46-56. [DOI: 10.1016/j.jconrel.2012.12.014] [Citation(s) in RCA: 152] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2012] [Revised: 12/06/2012] [Accepted: 12/10/2012] [Indexed: 12/16/2022]
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65
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Welser K, Campbell F, Kudsiova L, Mohammadi A, Dawson N, Hart SL, Barlow DJ, Hailes HC, Lawrence MJ, Tabor AB. Gene Delivery Using Ternary Lipopolyplexes Incorporating Branched Cationic Peptides: The Role of Peptide Sequence and Branching. Mol Pharm 2012; 10:127-41. [DOI: 10.1021/mp300187t] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Katharina Welser
- Department of Chemistry, University
College London, Christopher Ingold Laboratories, 20 Gordon Street,
London WC1H 0AJ, U.K
| | - Frederick Campbell
- Department of Chemistry, University
College London, Christopher Ingold Laboratories, 20 Gordon Street,
London WC1H 0AJ, U.K
| | - Laila Kudsiova
- Institute
of Pharmaceutical
Science, King’s College London, Franklin-Wilkins Building,
150 Stamford Street, Waterloo Campus, London SE1 9NH, U.K
| | - Atefeh Mohammadi
- Department of Chemistry, University
College London, Christopher Ingold Laboratories, 20 Gordon Street,
London WC1H 0AJ, U.K
| | - Natalie Dawson
- Department of Chemistry, University
College London, Christopher Ingold Laboratories, 20 Gordon Street,
London WC1H 0AJ, U.K
| | - Stephen L. Hart
- Wolfson Centre for Gene Therapy
of Childhood Disease, UCL Institute of Child Health, 30 Guilford Street,
London WC1N 1EH, U.K
| | - David J. Barlow
- Institute
of Pharmaceutical
Science, King’s College London, Franklin-Wilkins Building,
150 Stamford Street, Waterloo Campus, London SE1 9NH, U.K
| | - Helen C. Hailes
- Department of Chemistry, University
College London, Christopher Ingold Laboratories, 20 Gordon Street,
London WC1H 0AJ, U.K
| | - M. Jayne Lawrence
- Institute
of Pharmaceutical
Science, King’s College London, Franklin-Wilkins Building,
150 Stamford Street, Waterloo Campus, London SE1 9NH, U.K
| | - Alethea B. Tabor
- Department of Chemistry, University
College London, Christopher Ingold Laboratories, 20 Gordon Street,
London WC1H 0AJ, U.K
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66
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O’Mahony AM, Desgranges S, Ogier J, Quinlan A, Devocelle M, Darcy R, Cryan JF, O’Driscoll CM. In Vitro Investigations of the Efficacy of Cyclodextrin-siRNA Complexes Modified with Lipid-PEG-Octaarginine: Towards a Formulation Strategy for Non-viral Neuronal siRNA Delivery. Pharm Res 2012. [DOI: 10.1007/s11095-012-0945-8] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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67
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Bai J, Zhou Z, Tang H, Song S, Peng J, Xu Y. Impact of PEGylation on biodistribution and tumor accumulation of Lipid-Mu peptide-DNA. J Liposome Res 2012; 23:1-10. [DOI: 10.3109/08982104.2012.708934] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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68
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Ojea-Jiménez I, Tort O, Lorenzo J, Puntes VF. Engineered nonviral nanocarriers for intracellular gene delivery applications. Biomed Mater 2012; 7:054106. [PMID: 22972254 DOI: 10.1088/1748-6041/7/5/054106] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
The efficient delivery of nucleic acids into mammalian cells is a central aspect of cell biology and of medical applications, including cancer therapy and tissue engineering. Non-viral chemical methods have been received with great interest for transfecting cells. However, further development of nanocarriers that are biocompatible, efficient and suitable for clinical applications is still required. In this paper, the different material platforms for gene delivery are comparatively addressed, and the mechanisms of interaction with biological systems are discussed carefully.
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Affiliation(s)
- Isaac Ojea-Jiménez
- Institut Català de Nanotecnologia, UAB Campus, 08193 Cerdanyola del Vallés, Barcelona, Spain.
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69
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Abstract
An effective strategy for personalized medicine requires a major conceptual change in the development and application of therapeutics. In this article, we argue that further advances in this field should be made with reference to another conceptual shift, that of network pharmacology. We examine the intersection of personalized medicine and network pharmacology to identify strategies for the development of personalized therapies that are fully informed by network pharmacology concepts. This provides a framework for discussion of the impact personalized medicine will have on chemistry in terms of drug discovery, formulation and delivery, the adaptations and changes in ideology required and the contribution chemistry is already making. New ways of conceptualizing chemistry's relationship with medicine will lead to new approaches to drug discovery and hold promise of delivering safer and more effective therapies.
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70
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Antiviral effect of HPMPC (Cidofovir®), entrapped in cationic liposomes: In vitro study on MDBK cell and BHV-1 virus. J Control Release 2012; 160:330-8. [DOI: 10.1016/j.jconrel.2012.01.040] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2011] [Revised: 01/25/2012] [Accepted: 01/27/2012] [Indexed: 11/19/2022]
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71
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Su W, Wang H, Wang S, Liao Z, Kang S, Peng Y, Han L, Chang J. PEG/RGD-modified magnetic polymeric liposomes for controlled drug release and tumor cell targeting. Int J Pharm 2012; 426:170-181. [DOI: 10.1016/j.ijpharm.2012.01.013] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2011] [Revised: 12/15/2011] [Accepted: 01/07/2012] [Indexed: 10/14/2022]
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72
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Design and Engineering of Multifunctional Quantum Dot-Based Nanoparticles for Simultaneous Therapeutic-Diagnostic Applications. ACTA ACUST UNITED AC 2012. [DOI: 10.1007/978-1-4614-2305-8_16] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/19/2023]
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73
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O'Mahony AM, Ogier J, Desgranges S, Cryan JF, Darcy R, O'Driscoll CM. A click chemistry route to 2-functionalised PEGylated and cationic β-cyclodextrins: co-formulation opportunities for siRNA delivery. Org Biomol Chem 2012; 10:4954-60. [DOI: 10.1039/c2ob25490e] [Citation(s) in RCA: 58] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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74
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75
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Ding N, Lu Y, Lee RJ, Yang C, Huang L, Liu J, Xiang G. Folate receptor-targeted fluorescent paramagnetic bimodal liposomes for tumor imaging. Int J Nanomedicine 2011; 6:2513-20. [PMID: 22072885 PMCID: PMC3205144 DOI: 10.2147/ijn.s23934] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
RATIONALE AND OBJECTIVE Receptor-targeted delivery of imaging and therapeutic agents can lead to enhanced efficacy for both. Multimodality imaging offers unique advantages over traditional single modality imaging. Tumor marker folate receptor (FR)-targeted fluorescent paramagnetic bimodal liposomes were synthesized to co-deliver paramagnetic and fluorescence agents for magnetic resonance (MR) and optical bimodal imaging contrast enhancement. MATERIALS AND METHODS Fluorescent and paramagnetic bimodal liposomes were synthesized with a mean diameter of 136 nm and a low polydispersity index. The liposomes incorporated folate-PEG(3350)-CHEMS for FR targeting, Gd(III)[N,N-Bis-stearylamidomethyl-N'-amidomethyl]diethylenetriamine tetraacetic acid (Gd-DTPA-BSA) for MR contrast, and calcein for fluorescence. To determine the specificity and efficiency of delivery, the liposomes were evaluated in FR-positive KB and HeLa cells and FR-negative A549 cells, which were analyzed by fluorescence microscopy, magnetic resonance imaging (MRI), and flow cytometry (FCM). RESULTS FR-specific and efficient cellular uptake of the FR-targeted bimodal liposomes was confirmed by fluorescence microscopy and by FCM. The mean fluorescence intensity (MFI) of KB cells treated with FR-targeted liposomes was 45× that of cells treated with nontargeted liposomes, and 18× that of cells treated with FR-targeted liposomes and excess folic acid (FA). The MFI of HeLa cells treated with targeted liposomes was 33× that of nontargeted liposomes, and was 16× that of the mixture of targeted liposomes and free FA. In contrast, the MFI of A549 cells treated with FR-targeted liposomes was nearly the same as those treated with nontargeted liposomes. The T(1)-weighted MR images of HeLa and KB cells incubated with FR-targeted liposomes had much higher signal intensity than those treated with nontargeted liposomes or free Gd-DTPA. Furthermore, the FR-targeting effect could be blocked by excess free FA. CONCLUSION FR-targeted fluorescent paramagnetic bimodal liposomes provided a novel platform for bimodal tumor imaging and theranostic delivery.
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Affiliation(s)
- Nan Ding
- School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People's Republic of China
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76
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Sun C, Tang T, Uludağ H. Molecular Dynamics Simulations of PEI Mediated DNA Aggregation. Biomacromolecules 2011; 12:3698-707. [DOI: 10.1021/bm2009476] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Chongbo Sun
- Department of Mechanical Engineering, University of Alberta, Edmonton, AB, Canada T6G 2G8
| | - Tian Tang
- Department of Mechanical Engineering, University of Alberta, Edmonton, AB, Canada T6G 2G8
| | - Hasan Uludağ
- Department of Chemical and Materials
Engineering, University of Alberta, Edmonton,
AB, Canada T6G 2G6
- Department
of Biomedical Engineering, University of Alberta, Edmonton, AB, Canada T6G 2V2
- Faculty of Pharmacy and Pharmaceutical Sciences, University of Alberta, Edmonton, AB, Canada T6G 2N8
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77
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78
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Kudsiova L, Fridrich B, Ho J, Mustapa MFM, Campbell F, Welser K, Keppler M, Ng T, Barlow DJ, Tabor AB, Hailes HC, Lawrence MJ. Lipopolyplex Ternary Delivery Systems Incorporating C14 Glycerol-Based Lipids. Mol Pharm 2011; 8:1831-47. [DOI: 10.1021/mp2001796] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Laila Kudsiova
- Institute of Pharmaceutical Science, King’s College London, Franklin-Wilkins Building, 150 Stamford Street, Waterloo Campus, London SE1 9NH, U.K
| | - Barbara Fridrich
- Institute of Pharmaceutical Science, King’s College London, Franklin-Wilkins Building, 150 Stamford Street, Waterloo Campus, London SE1 9NH, U.K
| | - Jimmy Ho
- Department of Chemistry, University College London, 20 Gordon Street, London WC1H 0AJ, U.K
| | - M. Firouz Mohd Mustapa
- Department of Chemistry, University College London, 20 Gordon Street, London WC1H 0AJ, U.K
| | - Frederick Campbell
- Department of Chemistry, University College London, 20 Gordon Street, London WC1H 0AJ, U.K
| | - Katharina Welser
- Department of Chemistry, University College London, 20 Gordon Street, London WC1H 0AJ, U.K
| | - Melanie Keppler
- Randall Division of Cell and Molecular Biophysics, King’s College London, Henriette Raphael Building, Guy's Campus, London SE1 1UL, U.K
| | - Tony Ng
- Department of Chemistry, University College London, 20 Gordon Street, London WC1H 0AJ, U.K
- Randall Division of Cell and Molecular Biophysics, King’s College London, Henriette Raphael Building, Guy's Campus, London SE1 1UL, U.K
| | - David J. Barlow
- Institute of Pharmaceutical Science, King’s College London, Franklin-Wilkins Building, 150 Stamford Street, Waterloo Campus, London SE1 9NH, U.K
| | - Alethea B. Tabor
- Department of Chemistry, University College London, 20 Gordon Street, London WC1H 0AJ, U.K
| | - Helen C. Hailes
- Department of Chemistry, University College London, 20 Gordon Street, London WC1H 0AJ, U.K
| | - M. Jayne Lawrence
- Institute of Pharmaceutical Science, King’s College London, Franklin-Wilkins Building, 150 Stamford Street, Waterloo Campus, London SE1 9NH, U.K
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79
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Pisani M, Mobbili G, Placentino IF, Smorlesi A, Bruni P. Biophysical Characterization of Complexes of DNA with Mixtures of the Neutral Lipids 1,2-Dioleoyl-sn-glycero-3-phosphoethanolamine-N-hexanoylamine or 1,2-Dioleoyl-sn-glycero-3-phosphoethanolamine-N-dodecanoylamine and 1,2-Dioleoyl-sn-glycero-3-phosphocholine in the Presence of Bivalent Metal Cations for DNA Transfection. J Phys Chem B 2011; 115:10198-206. [DOI: 10.1021/jp202577u] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Michela Pisani
- Chemistry Division of the ISAC Department, Polytechnic University of Marche, Via Brecce Bianche, 60131 Ancona, Italy
| | - Giovanna Mobbili
- Chemistry Division of the ISAC Department, Polytechnic University of Marche, Via Brecce Bianche, 60131 Ancona, Italy
| | - Immacolata F. Placentino
- Chemistry Division of the ISAC Department, Polytechnic University of Marche, Via Brecce Bianche, 60131 Ancona, Italy
| | - Arianna Smorlesi
- Department of Pathology and Innovative Therapies, Polytechnic University of Marche, Via Tronto 10/A, 60100 Ancona, Italy
| | - Paolo Bruni
- Chemistry Division of the ISAC Department, Polytechnic University of Marche, Via Brecce Bianche, 60131 Ancona, Italy
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80
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Aissaoui A, Chami M, Hussein M, Miller AD. Efficient topical delivery of plasmid DNA to lung in vivo mediated by putative triggered, PEGylated pDNA nanoparticles. J Control Release 2011; 154:275-84. [PMID: 21699935 DOI: 10.1016/j.jconrel.2011.06.017] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2011] [Revised: 05/30/2011] [Accepted: 06/04/2011] [Indexed: 11/18/2022]
Abstract
Non-viral vectors are considered safer than viral vectors and show clinical potential, but remain less efficient in terms of DNA delivery. Here we report how cationic liposomes, prepared from new cationic lipid, N',N',-dioctadecyl-N-4,8-diaza-10-aminodecanoylglycine amide (DODAG) and neutral lipid dioleoyl-L-α-phos-phatidylethanolamine (DOPE), can be formulated with plasmid DNA (pDNA) in the presence of stabilizer cholesteryl-oxycarbonylpolyethlylene glycol(4600) (PEG(4600)-Chol) giving PEGylated pDNA nanoparticles (pDNA-ABC nanoparticles) that are proposed to be half-life triggered nanoparticles. In particular, the PEGylated pDNA nanoparticle formulation DODAG/DOPE/PEG(4600)-Chol (43:43:14, m/m/m)-pDNA (total lipid/pDNA ratio 4:1 w/w) (pTRANSplus nanoparticles) is shown to mediate efficient transfection of murine lung tissue in vivo. Levels of transfection compare well with the results of polyethylenimine (PEI) mediated pDNA transfection in vivo and even of adenovirus mediated transduction. Cryo-EM imaging indicates that pTRANSplus formulations are somewhat heterogeneous but do consist primarily of bilammellar lipoplex nanoparticles with a few multilammellar nanoparticle aggregates. Lung histology confirms that pTRANSplus mediated transfection in vivo targets substantially the epithelial cells of bronchii and bronchioli airway passages. The pTRANSplus nanoparticle system is a useful new starting point for nucleic acid therapeutic strategies to counter lung disorders such as viral infection and possibly cystic fibrosis.
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Affiliation(s)
- Abderrahim Aissaoui
- Imperial College Genetic Therapies Centre, Department of Chemistry, Flowers Building, Armstrong Road, Imperial College London, London SW7 2AZ, UK
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81
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Rodik RV, Klymchenko AS, Jain N, Miroshnichenko SI, Richert L, Kalchenko VI, Mély Y. Virus-Sized DNA Nanoparticles for Gene Delivery Based on Micelles of Cationic Calixarenes. Chemistry 2011; 17:5526-38. [DOI: 10.1002/chem.201100154] [Citation(s) in RCA: 93] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2010] [Indexed: 11/07/2022]
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82
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Intracellular trafficking and gene expression of pH-sensitive, artificially enveloped adenoviruses in vitro and in vivo. Biomaterials 2011; 32:3085-93. [PMID: 21269689 DOI: 10.1016/j.biomaterials.2010.12.043] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2010] [Accepted: 12/28/2010] [Indexed: 01/01/2023]
Abstract
Recombinant adenovirus (Ad) has shown great promise in gene therapy. Artificial envelopment of adenovirus within lipid bilayers has previously been shown to decrease the immunogenicity and hepatic affinity of naked Ad in vivo. Unfortunately, this also resulted in a significant reduction of gene expression, which we attributed to poor endosomal release of the Ad from its artificial lipid envelope. In this work, we explored the artificial envelopment of Ad within pH-sensitive DOPE:CHEMS bilayers and characterized this vector by TEM, AFM, dot blot, dynamic light scattering and zeta potential measurements. The artificially enveloped viral vectors exhibited good stability at physiological pH but immediately collapsed and released naked Ad virions at pH 5.5. Intracellular trafficking using confocal laser scanning microscopy (CLSM) revealed that Cy3-labelled Ad enveloped in DOPE:CHEMS bilayers exhibited the characteristic Ad distribution within the cytoplasm that led to virion accumulation around the nuclear membrane, indicating endosomal release of Ad. We obtained equivalent levels of gene expression as those of naked Ad in a series of CAR-positive (CAR+) and CAR-negative (CAR-) cell lines. This suggested that the mechanism of infection for the artificially enveloped Ad remained dependent on the presence of CAR receptors. Finally, the pH-sensitive enveloped Ad were injected intratumorally in human cervical carcinoma xenograft-bearing nude mice, also illustrating their capacity for efficient in vivo marker gene expression. This study is a step forward toward the engineering of functional, artificially enveloped adenovirus vectors for gene transfer applications.
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83
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Kudsiova L, Ho J, Fridrich B, Harvey R, Keppler M, Ng T, Hart SL, Tabor AB, Hailes HC, Lawrence* MJ. Lipid chain geometry of C14 glycerol-based lipids: effect on lipoplex structure and transfection. ACTA ACUST UNITED AC 2011; 7:422-36. [DOI: 10.1039/c0mb00149j] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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84
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Lamarre B, Ryadnov MG. Self-assembling viral mimetics: one long journey with short steps. Macromol Biosci 2010; 11:503-13. [PMID: 21165940 DOI: 10.1002/mabi.201000330] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2010] [Indexed: 12/14/2022]
Abstract
Recently, the Foresight Institute has pronounced six economic challenges that can be addressed through the progress of nanotechnology. One of these is the health and longevity of human life. Amongst applications anticipated to provide a solution to this challenge, gene therapy appears to be particularly promising. In theory, many diseases that result from genetic disorders can be cured by correcting defective genes. In practice, finding efficient and safe delivery vectors remains the stumbling point on the path of genetic therapies to the clinic. Viruses, otherwise the most efficient transfectors, pose safety concerns over immune reactions, whereas synthetic gene packages greatly lack the structural integrity of viruses. An ideal vector is therefore seen as a compromise between the two: a nanoscale device, which would mimic a virus and act as a virus, but would do this at the designer's whim. A strategy to achieve this is offered by the virus architecture itself, the principles of which are translated into the function via exquisitely reproducible self-assembly mechanisms. Thus, to mimic a virus is to mimic the way it is built, i.e., self-assembly. With just a few attempts made so far, the journey to an artificial virus has had a short lifetime, but the promise it holds is not expected to reduce any time soon.
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Affiliation(s)
- Baptiste Lamarre
- National Physical Laboratory, Teddington, Middlesex, TW110LW, UK
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85
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Accardo A, Morisco A, Palladino P, Palumbo R, Tesauro D, Morelli G. Amphiphilic CCK peptides assembled in supramolecular aggregates: structural investigations and in vitro studies. MOLECULAR BIOSYSTEMS 2010; 7:862-70. [PMID: 21157624 DOI: 10.1039/c0mb00238k] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Supramolecular aggregates obtained by self-aggregation of five new cationic amphiphilic CCK8 peptides have been obtained in water solution and characterized for: (i) aggregate structure and stability; (ii) CCK8 peptide conformation and bioavailability on the external aggregate surface; and (iii) for their cell binding properties. The cationic amphiphilic CCK8 peptides self-aggregate giving a combination of liposomal and micelle structures, with radii ranging between ~60 nm and ~90 nm, and between ~5 and ~10 nm, respectively. The presence of CCK8 peptide well-exposed on the aggregate surface is demonstrated by fluorescence measurements. Peptide conformation changes in the five supramolecular aggregates: the CCK8 conformational behaviour is probably induced by the presence of three charged lysine residues close to the bioactive peptide sequence. Only aggregates in which the CCK8 peptide presents a structural arrangement similar to that found for the same peptide in DPC micelles give promising binding properties to CCK2-R receptors overexpressed by transfected A431 cells. Chemical modifications on the CCK8 N-terminus seem to play an important role in stabilizing the peptide active conformation, either when the peptide derivative is in monomeric or in aggregate form. For their easy preparation procedures and their binding properties, supramolecular aggregates based on cationic peptide amphiphiles can be considered as promising candidates for target selective drug carriers on cancer cells.
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Affiliation(s)
- Antonella Accardo
- Department of Biological Sciences, CIRPeB University of Naples Federico II, & IBB CNR, Via Mezzocannone 16, 80134 Naples, Italy
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86
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Synthesis and delivery activity of new cationic cholesteryl glucosides. Carbohydr Res 2010; 345:2438-49. [DOI: 10.1016/j.carres.2010.09.012] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2007] [Revised: 09/04/2010] [Accepted: 09/10/2010] [Indexed: 01/23/2023]
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87
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Kenny GD, Kamaly N, Kalber TL, Brody LP, Sahuri M, Shamsaei E, Miller AD, Bell JD. Novel multifunctional nanoparticle mediates siRNA tumour delivery, visualisation and therapeutic tumour reduction in vivo. J Control Release 2010; 149:111-6. [PMID: 20888381 DOI: 10.1016/j.jconrel.2010.09.020] [Citation(s) in RCA: 80] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2010] [Revised: 09/22/2010] [Accepted: 09/24/2010] [Indexed: 11/26/2022]
Abstract
RNA interference (RNAi) is being widely explored as a means of tumour therapy due to the specific and potent silencing of targeted genes. However, in vivo delivery of RNAi effectors, such as small interfering RNA (siRNA) and detection of delivery is fraught with problems. Here, we describe novel theranostic PEGylated siRNA nanoparticles termed liposome-entrapped siRNA (LEsiRNA) nanoparticles. Our LEsiRNA nanoparticles are MR sensitive, contain labels for fluorescence microscopy/histology and promote functional siRNA delivery to tumours in mice leading to a significant reduction in both Survivin expression and tumour growth. LEsiRNA nanoparticles, administered by intravenous injection, were shown to accumulate in xenograft tumours by MR contrast image enhancements 24h post-administration. Fluorescence microscopy was used to corroborate the MR results and simultaneously demonstrate co-localisation of nanoparticles and siRNA within the tumours. The LEsiRNA nanoparticle-mediated delivery of the anti-cancer Survivin siRNA causes significant reduction in tumour growth when compared to controls. Our results suggest that LEsiRNA nanoparticles can be valuable as an in vivo delivery agent for siRNA therapy to tumours.
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Affiliation(s)
- Gavin D Kenny
- Metabolic and Molecular Imaging Group, Imaging Sciences Department, MRC Clinical Sciences Centre, Imperial College London, Hammersmith Hospital, London, UK.
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88
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Morozova NG, Maslov MA, Petukhova OA, Andronova SV, Grishaeva AO, Serebrennikova GA. Synthesis of lipid mediators based on 1,2-dialkylglycerol and cholesterol for targeted delivery of oligo- and polynucleotides into hepatocytes. Russ Chem Bull 2010. [DOI: 10.1007/s11172-010-0070-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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89
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Petukhov IA, Maslov MA, Morozova NG, Serebrennikova GA. Synthesis of polycationic lipids based on cholesterol and spermine. Russ Chem Bull 2010. [DOI: 10.1007/s11172-010-0071-x] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
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90
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Yadav JS, Lavanya MP, Das PP, Bag I, Krishnan A, Leary R, Bagchi A, Jagannadh B, Mohapatra DK, Bhadra MP, Bhadra U. 4-N-pyridin-2-yl-benzamide nanotubes compatible with mouse stem cell and oral delivery in Drosophila. NANOTECHNOLOGY 2010; 21:155102. [PMID: 20332564 DOI: 10.1088/0957-4484/21/15/155102] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
p-aminobenzoic acid (PABA), a structural moiety of many commercial drugs, is self-assembled with linker alkyl side chains to form tubular nanostructures. The tubes exhibited fluorescence either intrinsic or from fluorescent molecules embedded in the wall during self-assembly. Uptake and inter-cellular delivery of the conjugated nanotubes in human cancer cells and in mouse embryonic stem cells were demonstrated by fluorescence imaging and flow cytometry. Biocompatibility, cytotoxicity and clearance were monitored both ex vivo in mouse multipotent embryonic stem cells and in vivo in adult Drosophila. Accumulation of nanotubes had no adverse effects and abnormalities on stem cell morphology and proliferation rate. A distinct distribution of two separate nanotubes in various internal organs of Drosophila interprets that accumulation of nanomaterials might be interdependent on the side chain modifications and physiological settings of cell or tissue types. Unlike carbon nanomaterials, exposure of PABA nanotubes does not produce any hazards including locomotion defects and mortality of adult flies. Despite differential uptake and clearance from multiple live tissues, the use of self-assembled nanotubes can add new dimensions and scope to the development of dual-purpose oral carriers for the fulfilment of many biological promises.
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Affiliation(s)
- Jhillu S Yadav
- Division of Organic Chemistry-I, Indian Institute of Chemical Technology, Uppal Road, Hyderabad 500007, India
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91
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Kamaly N, Miller AD. Paramagnetic liposome nanoparticles for cellular and tumour imaging. Int J Mol Sci 2010; 11:1759-76. [PMID: 20480040 PMCID: PMC2871136 DOI: 10.3390/ijms11041759] [Citation(s) in RCA: 61] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2010] [Revised: 04/06/2010] [Accepted: 04/08/2010] [Indexed: 12/15/2022] Open
Abstract
In this review we discuss the development of paramagnetic liposomes incorporating MRI contrast agents and show how these are utilized in cellular imaging in vitro. Bi-functional, bi-modal imaging paramagnetic liposome systems are also described. Next we discuss the upgrading of paramagnetic liposomes into bi-modal imaging neutral nanoparticles for in vivo imaging applications. We discuss the development of such systems and show how paramagnetic liposomes and imaging nanoparticles could be developed as platforms for future multi-functional, multi-modal imaging theranostic nanodevices tailor-made for the combined imaging of early stage disease pathology and functional drug delivery.
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Affiliation(s)
- Nazila Kamaly
- Department of Chemistry, Imperial College Genetic Therapies Centre, Imperial College London, UK.
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92
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Wang M, Thanou M. Targeting nanoparticles to cancer. Pharmacol Res 2010; 62:90-9. [PMID: 20380880 DOI: 10.1016/j.phrs.2010.03.005] [Citation(s) in RCA: 566] [Impact Index Per Article: 40.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/24/2010] [Revised: 03/18/2010] [Accepted: 03/19/2010] [Indexed: 12/14/2022]
Abstract
Nanotechnology applications in medicine, termed as nanomedicine, have introduced a number of nanoparticles of variable chemistry and architecture for cancer imaging and treatment. Nanotechnology involves engineering multifunctional devices with dimensions at the nanoscale, similar dimensions as those of large biological vesicles or molecules in our body. These devices typically have features just tens to hundred nanometers across and they can carry one or two detection signals and/or therapeutic cargo(s). One unique class of nanoparticles is designed to do both, providing this way the theragnostic nanoparticles (therapy and diagnosis). Being inspired by physiologically existing nanomachines, nanoparticles are designed to safely reach their target and specifically release their cargo at the site of the disease, this way increasing the drug's tissue bioavailability. Nanoparticles have the advantage of targeting cancer by simply being accumulated and entrapped in tumours (passive targeting). The phenomenon is called the enhanced permeation and retention effect, caused by leaky angiogenetic vessels and poor lymphatic drainage and has been used to explain why macromolecules and nanoparticles are found at higher ratios in tumours compared to normal tissues. Although accumulation in tumours is observed cell uptake and intracellular drug release have been questioned. Polyethyleneglycol (PEG) is used to protect the nanoparticles from the Reticulo-Endothelial System (RES), however, it prevents cell uptake and the required intracellular drug release. Grafting biorecognition molecules (ligands) onto the nanoparticles refers to active targeting and aims to increase specific cell uptake. Nanoparticles bearing these ligands are recognised by cell surface receptors and this leads to receptor-mediated endocytosis. Several materials are suggested for the design of nanoparticles for cancer. Polymers, linear and dendrimers, are associated with the drug in a covalent or non-covalent way and have been used with or without a targeting ligand. Stealth liposomes are suggested to carry the drug in the aqueous core, and they are usually decorated by recognition molecules, being widely studied and applied. Inorganic nanoparticles such as gold and iron oxide are usually coupled to the drug, PEG and the targeting ligand. It appears that the PEG coating and ligand decoration are common constituents in most types of nanoparticles for cancer. There are several examples of successful cancer diagnostic and therapeutic nanoparticles and many of them have rapidly moved to clinical trials. Nevertheless there is still a room for optimisation in the area of the nanoparticle kinetics such as improving their plasma circulation and tumour bioavailability and understanding the effect of targeting ligands on their efficiency to treat cancer. The need to develop novel and efficient ligands has never been greater, and the use of proper conjugation chemistry is mandatory.
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Affiliation(s)
- M Wang
- Imperial College London, Department of Chemistry, United Kingdom
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93
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Hart SL. Multifunctional nanocomplexes for gene transfer and gene therapy. Cell Biol Toxicol 2010; 26:69-81. [DOI: 10.1007/s10565-009-9141-y] [Citation(s) in RCA: 59] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2009] [Accepted: 10/21/2009] [Indexed: 01/28/2023]
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94
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Lang M, Jegou T, Chung I, Richter K, Münch S, Udvarhelyi A, Cremer C, Hemmerich P, Engelhardt J, Hell SW, Rippe K. Three-dimensional organization of promyelocytic leukemia nuclear bodies. J Cell Sci 2010; 123:392-400. [PMID: 20130140 DOI: 10.1242/jcs.053496] [Citation(s) in RCA: 89] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023] Open
Abstract
Promyelocytic leukemia nuclear bodies (PML-NBs) are mobile subnuclear organelles formed by PML and Sp100 protein. They have been reported to have a role in transcription, DNA replication and repair, telomere lengthening, cell cycle control and tumor suppression. We have conducted high-resolution 4Pi fluorescence laser-scanning microscopy studies complemented with correlative electron microscopy and investigations of the accessibility of the PML-NB subcompartment. During interphase PML-NBs adopt a spherical organization characterized by the assembly of PML and Sp100 proteins into patches within a 50- to 100-nm-thick shell. This spherical shell of PML and Sp100 imposes little constraint to the exchange of components between the PML-NB interior and the nucleoplasm. Post-translational SUMO modifications, telomere repeats and heterochromatin protein 1 were found to localize in characteristic patterns with respect to PML and Sp100. From our findings, we derived a model that explains how the three-dimensional organization of PML-NBs serves to concentrate different biological activities while allowing for an efficient exchange of components.
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Affiliation(s)
- Marion Lang
- Division of High Resolution Optical Microscopy, Deutsches Krebsforschungszentrum, 69120 Heidelberg, Germany
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95
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Cationic liposome-nucleic acid complexes for gene delivery and silencing: pathways and mechanisms for plasmid DNA and siRNA. Top Curr Chem (Cham) 2010; 296:191-226. [PMID: 21504103 DOI: 10.1007/128_2010_70] [Citation(s) in RCA: 118] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Motivated by the promises of gene therapy, there is great interest in developing non-viral lipid-based vectors for therapeutic applications due to their low immunogenicity, low toxicity, ease of production, and the potential of transferring large pieces of DNA into cells. In fact, cationic liposome (CL) based vectors are among the prevalent synthetic carriers of nucleic acids (NAs) currently used in gene therapy clinical trials worldwide. These vectors are studied both for gene delivery with CL-DNA complexes and gene silencing with CL-siRNA (short interfering RNA) complexes. However, their transfection efficiencies and silencing efficiencies remain low compared to those of engineered viral vectors. This reflects the currently poor understanding of transfection-related mechanisms at the molecular and self-assembled levels, including a lack of knowledge about interactions between membranes and double stranded NAs and between CL-NA complexes and cellular components. In this review we describe our recent efforts to improve the mechanistic understanding of transfection by CL-NA complexes, which will help to design optimal lipid-based carriers of DNA and siRNA for therapeutic gene delivery and gene silencing.
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96
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Guinn B, Casey G, Möller MG, Kasahara N, O'Sullivan GC, Peng KW, Tangney M. International Society for Cell and Gene Therapy of Cancer 2009 Annual Meeting Held in Cork, Ireland. Hum Gene Ther 2010; 21:9-26. [DOI: 10.1089/hum.2009.205] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Affiliation(s)
- Barbara Guinn
- Cancer Sciences Division (MP824), University of Southampton School of Medicine, Somers Cancer Research Building, Southampton General Hospital, Southampton SO16 6YD, UK
- Department of Haematological Medicine, King's College London School of Medicine, London SE5 9NU, UK
| | - Garrett Casey
- Cork Cancer Research Centre, Mercy University Hospital and Leslie C. Quick Jr. Laboratory, University College Cork, Cork, Ireland
| | - Mecker G. Möller
- Cork Cancer Research Centre, Mercy University Hospital and Leslie C. Quick Jr. Laboratory, University College Cork, Cork, Ireland
- Division of Surgical Oncology, DeWitt Daughtry Family Department of Surgery, University of Miami, Miller School of Medicine, Miami, FL 33136
| | - Noriyuki Kasahara
- Department of Medicine, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA 90095
| | - Gerald C. O'Sullivan
- Cork Cancer Research Centre, Mercy University Hospital and Leslie C. Quick Jr. Laboratory, University College Cork, Cork, Ireland
| | - Kah-Whye Peng
- Department of Molecular Medicine, Mayo Clinic, Rochester, MN 55905
| | - Mark Tangney
- Cork Cancer Research Centre, Mercy University Hospital and Leslie C. Quick Jr. Laboratory, University College Cork, Cork, Ireland
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97
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Medvedeva DA, Maslov MA, Serikov RN, Morozova NG, Serebrenikova GA, Sheglov DV, Latyshev AV, Vlassov VV, Zenkova MA. Novel cholesterol-based cationic lipids for gene delivery. J Med Chem 2009; 52:6558-68. [PMID: 19824650 DOI: 10.1021/jm901022t] [Citation(s) in RCA: 58] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Gene therapy based on gene delivery is a promising strategy for the treatment of human disease. Here we present data on structure/biological activity of new biodegradable cholesterol-based cationic lipids with various heterocyclic cationic head groups and linker types. Enhanced accumulation of nucleic acids in the cells mediated by the lipids was demonstrated by fluorescent microscopy and flow cytometry. Light scattering and atomic force microscopy were used to find structure/transfection activity correlations for the lipids. We found that the ability of the lipids to stimulate intracellular accumulation of the oligodeoxyribonucleotides and plasmid DNA correlates well with their ability to form in solution lipid/NA complexes of sizes that do not exceed 100 nm. Screening of the lipids revealed the most promising transfection agents both in terms of low toxicity and efficient delivery: cholesterol-based lipids with positively charged pyridine and methyl imidazole head groups and either the ester or carbamate linker.
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Affiliation(s)
- Darya A Medvedeva
- Institute of Chemical Biology and Fundamental Medicine, SB RAS, 8 Lavrentiev Avenue, Novosibirsk 630090, Russian Federation
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98
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Modi G, Pillay V, Choonara YE. Advances in the treatment of neurodegenerative disorders employing nanotechnology. Ann N Y Acad Sci 2009; 1184:154-72. [DOI: 10.1111/j.1749-6632.2009.05108.x] [Citation(s) in RCA: 100] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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99
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Takeuchi T, Bagnacani V, Sansone F, Matile S. Amphiphilic Counterion Activators for DNA: Stimuli-Responsive Cation Transporters and Biosensors in Bulk and Lipid Bilayer Membranes. Chembiochem 2009; 10:2793-9. [DOI: 10.1002/cbic.200900512] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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100
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Ahmed M, Deng Z, Liu S, Lafrenie R, Kumar A, Narain R. Cationic Glyconanoparticles: Their Complexation with DNA, Cellular Uptake, and Transfection Efficiencies. Bioconjug Chem 2009; 20:2169-76. [DOI: 10.1021/bc900350c] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Marya Ahmed
- Department of Chemical and Materials Engineering, University of Alberta, Edmonton, Alberta, T6G 2G6, Canada, Department of Chemistry and Biochemistry, Biomolecular Sciences Program, Laurentian University, 935, Ramsey Lake Road, Sudbury, Ontario, P3E 2C6, Canada, Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei, Anhui, China, and Regional Cancer Program of the Hospital, 41 Ramsey Lake Road, Sudbury, Ontario, Canada
| | - Zhicheng Deng
- Department of Chemical and Materials Engineering, University of Alberta, Edmonton, Alberta, T6G 2G6, Canada, Department of Chemistry and Biochemistry, Biomolecular Sciences Program, Laurentian University, 935, Ramsey Lake Road, Sudbury, Ontario, P3E 2C6, Canada, Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei, Anhui, China, and Regional Cancer Program of the Hospital, 41 Ramsey Lake Road, Sudbury, Ontario, Canada
| | - Shiyong Liu
- Department of Chemical and Materials Engineering, University of Alberta, Edmonton, Alberta, T6G 2G6, Canada, Department of Chemistry and Biochemistry, Biomolecular Sciences Program, Laurentian University, 935, Ramsey Lake Road, Sudbury, Ontario, P3E 2C6, Canada, Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei, Anhui, China, and Regional Cancer Program of the Hospital, 41 Ramsey Lake Road, Sudbury, Ontario, Canada
| | - Robert Lafrenie
- Department of Chemical and Materials Engineering, University of Alberta, Edmonton, Alberta, T6G 2G6, Canada, Department of Chemistry and Biochemistry, Biomolecular Sciences Program, Laurentian University, 935, Ramsey Lake Road, Sudbury, Ontario, P3E 2C6, Canada, Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei, Anhui, China, and Regional Cancer Program of the Hospital, 41 Ramsey Lake Road, Sudbury, Ontario, Canada
| | - Aseem Kumar
- Department of Chemical and Materials Engineering, University of Alberta, Edmonton, Alberta, T6G 2G6, Canada, Department of Chemistry and Biochemistry, Biomolecular Sciences Program, Laurentian University, 935, Ramsey Lake Road, Sudbury, Ontario, P3E 2C6, Canada, Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei, Anhui, China, and Regional Cancer Program of the Hospital, 41 Ramsey Lake Road, Sudbury, Ontario, Canada
| | - Ravin Narain
- Department of Chemical and Materials Engineering, University of Alberta, Edmonton, Alberta, T6G 2G6, Canada, Department of Chemistry and Biochemistry, Biomolecular Sciences Program, Laurentian University, 935, Ramsey Lake Road, Sudbury, Ontario, P3E 2C6, Canada, Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei, Anhui, China, and Regional Cancer Program of the Hospital, 41 Ramsey Lake Road, Sudbury, Ontario, Canada
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