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Munsell EV, Ross NL, Sullivan MO. Journey to the Center of the Cell: Current Nanocarrier Design Strategies Targeting Biopharmaceuticals to the Cytoplasm and Nucleus. Curr Pharm Des 2016; 22:1227-44. [PMID: 26675220 DOI: 10.2174/1381612822666151216151420] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2015] [Accepted: 12/15/2015] [Indexed: 01/06/2023]
Abstract
New biopharmaceutical molecules, potentially able to provide more personalized and effective treatments, are being identified through the advent of advanced synthetic biology strategies, sophisticated chemical synthesis approaches, and new analytical methods to assess biological potency. However, translation of many of these structures has been significantly limited due to the need for more efficient strategies to deliver macromolecular therapeutics to desirable intracellular sites of action. Engineered nanocarriers that encapsulate peptides, proteins, or nucleic acids are generally internalized into target cells via one of several endocytic pathways. These nanostructures, entrapped within endosomes, must navigate the intracellular milieu to orchestrate delivery to the intended destination, typically the cytoplasm or nucleus. For therapeutics active in the cytoplasm, endosomal escape continues to represent a limiting step to effective treatment, since a majority of nanocarriers trapped within endosomes are ultimately marked for enzymatic degradation in lysosomes. Therapeutics active in the nucleus have the added challenges of reaching and penetrating the nuclear envelope, and nuclear delivery remains a preeminent challenge preventing clinical translation of gene therapy applications. Herein, we review cutting-edge peptide- and polymer-based design strategies with the potential to enable significant improvements in biopharmaceutical efficacy through improved intracellular targeting. These strategies often mimic the activities of pathogens, which have developed innate and highly effective mechanisms to penetrate plasma membranes and enter the nucleus of host cells. Understanding these mechanisms has enabled advances in synthetic peptide and polymer design that may ultimately improve intracellular trafficking and bioavailability, leading to increased access to new classes of biotherapeutics.
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Affiliation(s)
| | | | - Millicent O Sullivan
- Department of Chemical and Biomolecular Engineering, University of Delaware, 150 Academy Street, Newark, DE 19716, Delaware.
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202
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Propoxylation of cationic polymers provides a novel approach to controllable modulation of their cellular toxicity and interaction with nucleic acids. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 69:60-7. [DOI: 10.1016/j.msec.2016.05.024] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/18/2016] [Revised: 04/19/2016] [Accepted: 05/05/2016] [Indexed: 02/04/2023]
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203
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Ni R, Zhou J, Hossain N, Chau Y. Virus-inspired nucleic acid delivery system: Linking virus and viral mimicry. Adv Drug Deliv Rev 2016; 106:3-26. [PMID: 27473931 DOI: 10.1016/j.addr.2016.07.005] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2016] [Revised: 07/02/2016] [Accepted: 07/20/2016] [Indexed: 12/21/2022]
Abstract
Targeted delivery of nucleic acids into disease sites of human body has been attempted for decades, but both viral and non-viral vectors are yet to meet our expectations. Safety concerns and low delivery efficiency are the main limitations of viral and non-viral vectors, respectively. The structure of viruses is both ordered and dynamic, and is believed to be the key for effective transfection. Detailed understanding of the physical properties of viruses, their interaction with cellular components, and responses towards cellular environments leading to transfection would inspire the development of safe and effective non-viral vectors. To this goal, this review systematically summarizes distinctive features of viruses that are implied for efficient nucleic acid delivery but not yet fully explored in current non-viral vectors. The assembly and disassembly of viral structures, presentation of viral ligands, and the subcellular targeting of viruses are emphasized. Moreover, we describe the current development of cationic material-based viral mimicry (CVM) and structural viral mimicry (SVM) in these aspects. In light of the discrepancy, we identify future opportunities for rational design of viral mimics for the efficient delivery of DNA and RNA.
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Affiliation(s)
- Rong Ni
- Division of Biomedical Engineering, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China; Institute for Advanced Study, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
| | - Junli Zhou
- Department of Chemical and Biomolecular Engineering, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
| | - Naushad Hossain
- Division of Biomedical Engineering, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
| | - Ying Chau
- Department of Chemical and Biomolecular Engineering, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China; Division of Biomedical Engineering, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China.
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204
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Abstract
AIM Viral vectors are used commonly in gene therapy trials, but their potential toxic effects are a serious concern. Identification of highly efficient nonviral vectors may alleviate these effects. Results & methodology: We compared the abilities of TransfeX, TransIT-LT1 and adenovirus to deliver the firefly luciferase and green fluorescent protein genes into HeLa cervical carcinoma, and HSC-3 and H357 oral squamous cell carcinoma cells. TransfeX mediated fourfold higher gene expression in HeLa cells than adenovirus, even at the highest multiplicity of infection. Flow cytometry indicated that a population of transfected cells expresses higher levels of green fluorescent protein than transduced cells. CONCLUSION TransfeX may be useful for gene therapy applications, particularly where the use of adenovirus is contraindicated.
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205
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Shakya A, Al-Hashimi HM, Banaszak Holl MM. Three RNA Microenvironments Detected in Fluxional Gene Delivery Polyplex Nanoassemblies. ACS Macro Lett 2016; 5:1104-1108. [PMID: 35658189 DOI: 10.1021/acsmacrolett.6b00668] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Prototropic and solvatochromatic properties of fluorescein (FL) were employed to detect the presence of microenvironments in polyplexes consisting of polycationic polymer (POCP) and a fluorescein-conjugated RNA, the HIV-1 transactivation response element (TAR-FL). Results reveal new aspects of polyplex structure with respect to polyplex-bound RNA existing in the following local microenvironments: (a) RNA associated with the polyplex that experiences local pH changes in a manner dependent on POCP nitrogen to RNA phosphate ratio (N:P), (b) RNA experiencing relatively acidic local pH environment that remains constant in polyplexes formed after a charge-neutral ratio, and (c) RNA packed close enough to mediate fluorophore/fluorophore quenching. The magnitude of these changes observed as a function of POCP to nucleic acid N:P ratio is polymer dependent. Assessment of the different microenvironments can help elucidate the functional hierarchy of polyplex-bound oligonucleotides and additionally characterize POCPs based on the resulting local pH and solvent properties upon polyplex formation.
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Affiliation(s)
| | - Hashim M. Al-Hashimi
- Department
of Biochemistry and Chemistry, Duke University Medical Center, Durham, North Carolina 27710, United States
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206
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Büyükköroğlu G, Şenel B, Gezgin S, Dinh T. The simultaneous delivery of paclitaxel and Herceptin® using solid lipid nanoparticles: In vitro evaluation. J Drug Deliv Sci Technol 2016. [DOI: 10.1016/j.jddst.2016.06.010] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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207
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Zhang J, Cui J, Deng Y, Jiang Z, Saltzman WM. Multifunctional Poly(amine- co-ester- co-ortho ester) for Efficient and Safe Gene Delivery. ACS Biomater Sci Eng 2016. [PMID: 28649641 DOI: 10.1021/acsbiomaterials.6b00502] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
Cationic polymers are used for non-viral gene delivery, but current materials lack the functionality to address the multiple barriers involved in gene delivery. Here we describe the rational design and synthesis of a new family of quaterpolymers with unprecedented multifunctionality: acid sensitivity, low cationic charge, high hydrophobicity, and biodegradability, all of which are essential for efficient and safe gene delivery. The polymers were synthesized via lipase-catalyzed polymerization of ortho ester diester, lactone, dialkyl diester, and amino diol monomers. Polymers containing ortho ester groups exhibited acid-sensitive degradation at endosomal pH (4~5), facilitated efficient endosomal escape and unpackaging of the genes, and were efficient in delivering genetic materials to HEK293 cells, human glioma cells, primary mouse melanoma cells, and human umbilical vein endothelial cells (HUVECs). We also developed a highly efficient lyophilized formulation of the nanoparticles, which could be stored for a month without loss of efficiency.
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Affiliation(s)
- Junwei Zhang
- Department of Chemical and Environmental Engineering, Yale University, 55 Prospect Street, New Haven, CT 06511, USA
| | - Jiajia Cui
- Department of Biomedical Engineering, Yale University, 55 Prospect Street, New Haven, CT 06511, USA
| | - Yang Deng
- Department of Biomedical Engineering, Yale University, 55 Prospect Street, New Haven, CT 06511, USA
| | - Zhaozhong Jiang
- Department of Biomedical Engineering, Molecular Innovations Center, Yale University, 600 West Campus Drive, West Haven, Connecticut 06516, USA
| | - W Mark Saltzman
- Department of Chemical and Environmental Engineering, Yale University, 55 Prospect Street, New Haven, CT 06511, USA.,Department of Biomedical Engineering, Yale University, 55 Prospect Street, New Haven, CT 06511, USA
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208
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Shorter SA, Gollings AS, Gorringe-Pattrick MAM, Coakley JE, Dyer PDR, Richardson SCW. The potential of toxin-based drug delivery systems for enhanced nucleic acid therapeutic delivery. Expert Opin Drug Deliv 2016; 14:685-696. [DOI: 10.1080/17425247.2016.1227781] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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209
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McErlean EM, McCrudden CM, McCarthy HO. Delivery of nucleic acids for cancer gene therapy: overcoming extra- and intra-cellular barriers. Ther Deliv 2016; 7:619-37. [PMID: 27582234 DOI: 10.4155/tde-2016-0049] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
The therapeutic potential of cancer gene therapy has been limited by the difficulty of delivering genetic material to target sites. Various biological and molecular barriers exist which need to be overcome before effective nonviral delivery systems can be applied successfully in oncology. Herein, various barriers are described and strategies to circumvent such obstacles are discussed, considering both the extracellular and intracellular setting. Development of multifunctional delivery systems holds much promise for the progression of gene delivery, and a growing body of evidence supports this approach involving rational design of vectors, with a unique molecular architecture. In addition, the potential application of composite gene delivery platforms is highlighted which may provide an alternative delivery strategy to traditional systemic administration.
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210
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211
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Gonçalves C, Akhter S, Pichon C, Midoux P. Intracellular Availability of pDNA and mRNA after Transfection: A Comparative Study among Polyplexes, Lipoplexes, and Lipopolyplexes. Mol Pharm 2016; 13:3153-63. [PMID: 27486998 DOI: 10.1021/acs.molpharmaceut.6b00376] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Intracellular availability of nucleic acids from synthetic vectors is critical and directly influences the transfection efficiency (TE). Herein, we evaluated the TE of polymer- and lipid-based nanoplexes (polyplexes, lipoplexes and lipopolyplexes) of EGFP-encoding mRNA and pDNA. To determine the translation and transcription efficiency of each nucleic acid nanoplex, in vitro expression was measured in HEK293T7 cells that permit gene expression in the cytoplasmic region. Globally, mRNA transfection profile was well corroborative with cytoplasmic transfection of pT7-pDNA as well as with nuclear transfection of pCMV-DNA. Irrespective of the nucleic acid, high TE was observed with histidinylated l-polyethylenimine (His-lPEI) polyplexes and dioleyl succinyl paromomycin/O,O-dioleyl-N-histamine phosphoramidate (DOPS/MM27) lipoplexes. Moreover, His-lPEI polyplexes yielded higher in vitro expression of EGFP for pDNA than for mRNA. Furthermore, a significant enhancement in the TE in the presence of an excess of His-lPEI was observed indicating that this polymer promotes cytosolic delivery. Compared to other nanoplexes, His-lPEI polyplex showed high intracellular availability of DNA and mRNA along with low cytotoxicity, owing to its rapid (complete or partial) unpacking in the cytosol and/or endosomes. This study gives an insight that, whether with mRNA or pDNA, enhancing nanoplex unpacking in the endosomes and cytosol would improve the delivery of nucleic acid in the cytosol and particularly in the case of pDNA where a sufficient available amount of pDNA in the cytoplasm would definitely improve its transport toward the nucleus.
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Affiliation(s)
- Cristine Gonçalves
- Centre de Biophysique Moléculaire, CNRS UPR4301 , rue Charles Sadron CS 80054, F-45071 Orléans Cedex 02, France.,Université d'Orléans , Orléans, France
| | - Sohail Akhter
- Centre de Biophysique Moléculaire, CNRS UPR4301 , rue Charles Sadron CS 80054, F-45071 Orléans Cedex 02, France.,Université d'Orléans , Orléans, France.,Le Studium Loire Valley Institute for Advanced Studies , Centre-Val de Loire région, France
| | - Chantal Pichon
- Centre de Biophysique Moléculaire, CNRS UPR4301 , rue Charles Sadron CS 80054, F-45071 Orléans Cedex 02, France.,Université d'Orléans , Orléans, France
| | - Patrick Midoux
- Centre de Biophysique Moléculaire, CNRS UPR4301 , rue Charles Sadron CS 80054, F-45071 Orléans Cedex 02, France.,Université d'Orléans , Orléans, France
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212
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Pigeon L, Gonçalves C, Pichon C, Midoux P. Evidence for plasmid DNA exchange after polyplex mixing. SOFT MATTER 2016; 12:7012-7019. [PMID: 27459887 DOI: 10.1039/c6sm00575f] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
The self-assembly of a plasmid DNA (pDNA) with cationic polymers or cationic liposomes forms nanosized supramolecular structures called lipoplexes, polyplexes and lipopolyplexes. Here, we report that when two polyplex preparations made using the same polymer and the same pDNA but labelled with two different fluorophores are mixed together, pDNA molecules are exchanged. Indeed, when Flu-pDNA complexed with histidinylated lPEI (Flu-pDNA/His-lPEI) polyplexes are mixed with Cy5-pDNA complexed with histidinylated lPEI (Cy5-pDNA/His-lPEI) polyplexes, a high quantity of polyplexes emitting dual fluorescence is observed and FRET indicates that one single polyplex contains two kinds of fluorescent pDNA molecules. This phenomenon depends on the polymer-type and the strength of the pDNA/polymer interaction. No exchange is observed with polylysine polyplexes, caged His-lPEI polyplexes, lipoplexes, lipopolyplexes or when His-lPEI polyplexes are mixed with lipoplexes. Our results suggest that aggregation or collapse of polyplexes occurs after their interaction leading to their unpackaging followed by the formation of new polyplexes with the exchange of pDNA.
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Affiliation(s)
- L Pigeon
- Centre de Biophysique Moléculaire, CNRS UPR4301, Inserm and University of Orléans, 45071 Orléans cedex 02, France.
| | - C Gonçalves
- Centre de Biophysique Moléculaire, CNRS UPR4301, Inserm and University of Orléans, 45071 Orléans cedex 02, France.
| | - C Pichon
- Centre de Biophysique Moléculaire, CNRS UPR4301, Inserm and University of Orléans, 45071 Orléans cedex 02, France.
| | - P Midoux
- Centre de Biophysique Moléculaire, CNRS UPR4301, Inserm and University of Orléans, 45071 Orléans cedex 02, France.
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213
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Gomes Dos Reis L, Svolos M, Hartwig B, Windhab N, Young PM, Traini D. Inhaled gene delivery: a formulation and delivery approach. Expert Opin Drug Deliv 2016; 14:319-330. [PMID: 27426972 DOI: 10.1080/17425247.2016.1214569] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
INTRODUCTION Gene therapy is a potential alternative to treat a number of diseases. Different hurdles are associated with aerosol gene delivery due to the susceptibility of plasmid DNA (pDNA) structure to be degraded during the aerosolization process. Different strategies have been investigated in order to protect and efficiently deliver pDNA to the lungs using non-viral vectors. To date, no successful therapy involving non-viral vectors has been marketed, highlighting the need for further investigation in this field. Areas covered: This review is focused on the formulation and delivery of DNA to the lungs, using non-viral vectors. Aerosol gene formulations are divided according to the current delivery systems for the lung: nebulizers, dry powder inhalers and pressurized metered dose inhalers; highlighting its benefits, challenges and potential application. Expert opinion: Successful aerosol delivery is achieved when the supercoiled DNA structure is protected during aerosolization. A formulation strategy or compounds that can protect, stabilize and efficiently transfect DNA into the cells is desired in order to produce an effective, low-cost and safe formulation. Nebulizers and dry powder inhalers are the most promising approaches to be used for aerosol delivery, due to the lower shear forces involved. In this context it is also important to highlight the importance of considering the 'pDNA-formulation-device system' as an integral part of the formulation development for a successful nucleic acid delivery.
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Affiliation(s)
- Larissa Gomes Dos Reis
- a Respiratory Technology, Woolcock Institute of Medical Research and Discipline of Pharmacology, Sydney Medical School , Sydney University , Glebe , Australia
| | - Maree Svolos
- a Respiratory Technology, Woolcock Institute of Medical Research and Discipline of Pharmacology, Sydney Medical School , Sydney University , Glebe , Australia
| | - Benedikt Hartwig
- b Evonik Industries, Nutrition and Care AG , Darmstadt , Germany
| | - Norbert Windhab
- b Evonik Industries, Nutrition and Care AG , Darmstadt , Germany
| | - Paul M Young
- a Respiratory Technology, Woolcock Institute of Medical Research and Discipline of Pharmacology, Sydney Medical School , Sydney University , Glebe , Australia
| | - Daniela Traini
- a Respiratory Technology, Woolcock Institute of Medical Research and Discipline of Pharmacology, Sydney Medical School , Sydney University , Glebe , Australia
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214
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Pierrat P, Casset A, Didier P, Kereselidze D, Lux M, Pons F, Lebeau L. Cationic DOPC-Detergent Conjugates for Safe and Efficient in Vitro and in Vivo Nucleic Acid Delivery. Chembiochem 2016; 17:1771-83. [PMID: 27380144 DOI: 10.1002/cbic.201600302] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2016] [Indexed: 01/19/2023]
Abstract
The ability of a nonviral nucleic acid carrier to deliver its cargo to cells with low associated toxicity is a critical issue for clinical applications of gene therapy. We describe biodegradable cationic DOPC-C12 E4 conjugates in which transfection efficiency is based on a Trojan horse strategy. In situ production of the detergent compound C12 E4 through conjugate hydrolysis within the acidic endosome compartment was expected to promote endosome membrane destabilization and subsequent release of the lipoplexes into cytosol. The transfection efficiency of the conjugates has been assessed in vitro, and associated cytotoxicity was determined. Cellular uptake and intracellular distribution of the lipoplexes have been investigated. The results show that direct conjugation of DOPC with C12 E4 produces a versatile carrier that can deliver both DNA and siRNA to cells in vitro with high efficiency and low cytotoxicity. SAR studies suggest that this compound might represent a reasonable compromise between the membrane activity of the released detergent and susceptibility of the conjugate to degradation enzymes in vitro. Although biodegradability of the conjugates had low impact on carrier efficiency in vitro, it proved critical in vivo. Significant improvement of transgene expression was obtained in the mouse lung tuning biodegradability of the carrier. Importantly, this also allowed reduction of the inflammatory response that invariably characterizes cationic-lipid-mediated gene transfer in animals.
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Affiliation(s)
- Philippe Pierrat
- Laboratoire de Conception et Application de Molécules Bioactives, UMR 7199 CNRS-Université de Strasbourg, Faculté de Pharmacie, 74 route du Rhin, B. P. 60024, 67401, Illkirch, France
| | - Anne Casset
- Laboratoire de Conception et Application de Molécules Bioactives, UMR 7199 CNRS-Université de Strasbourg, Faculté de Pharmacie, 74 route du Rhin, B. P. 60024, 67401, Illkirch, France
| | - Pascal Didier
- Laboratoire de Biophotonique et Pharmacologie, UMR 7213 CNRS-Université de Strasbourg, Faculté de Pharmacie, 74 route du Rhin, B. P. 60024, 67401, Illkirch, France
| | - Dimitri Kereselidze
- Laboratoire de Conception et Application de Molécules Bioactives, UMR 7199 CNRS-Université de Strasbourg, Faculté de Pharmacie, 74 route du Rhin, B. P. 60024, 67401, Illkirch, France
| | - Marie Lux
- Laboratoire de Conception et Application de Molécules Bioactives, UMR 7199 CNRS-Université de Strasbourg, Faculté de Pharmacie, 74 route du Rhin, B. P. 60024, 67401, Illkirch, France
| | - Françoise Pons
- Laboratoire de Conception et Application de Molécules Bioactives, UMR 7199 CNRS-Université de Strasbourg, Faculté de Pharmacie, 74 route du Rhin, B. P. 60024, 67401, Illkirch, France
| | - Luc Lebeau
- Laboratoire de Conception et Application de Molécules Bioactives, UMR 7199 CNRS-Université de Strasbourg, Faculté de Pharmacie, 74 route du Rhin, B. P. 60024, 67401, Illkirch, France.
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215
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Pereira P, Barreira M, Queiroz JA, Veiga F, Sousa F, Figueiras A. Smart micelleplexes as a new therapeutic approach for RNA delivery. Expert Opin Drug Deliv 2016; 14:353-371. [DOI: 10.1080/17425247.2016.1214567] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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216
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Juliar BA, Bromley MM, Moncion A, Jones DC, O’Neill EG, Wilson CG, Franceschi RT, Fabiilli ML. In Situ Transfection by Controlled Release of Lipoplexes Using Acoustic Droplet Vaporization. Adv Healthc Mater 2016; 5:1764-74. [PMID: 27191532 PMCID: PMC4956527 DOI: 10.1002/adhm.201600008] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2016] [Revised: 03/15/2016] [Indexed: 12/26/2022]
Abstract
Localized delivery of nucleic acids to target sites (e.g., diseased tissue) is critical for safe and efficacious gene therapy. An ultrasound-based technique termed acoustic droplet vaporization (ADV) has been used to spatiotemporally control the release of therapeutic small molecules and proteins contained within sonosensitive emulsions. Here, ADV is used to control the release of lipoplex-containing plasmid DNA encoding an enhanced green fluorescent protein reporter-from a sonosensitive emulsion. Focused ultrasound (3.5 MHz, mechanical index (MI) ≥ 1.5) generates robust release of fluorescein (i.e., surrogate payload) and lipoplex from the emulsion. In situ release of the lipoplex from the emulsion using ADV (MI = 1.5, 30 cycles) yields a 55% release efficiency, resulting in 43% transfection efficiency and 95% viability with C3H/10T1/2 cells. Without exposure to ultrasound, the release and transfection efficiencies are 5% and 7%, respectively, with 99% viability. Lipoplex released by ADV retains its bioactivity while the ADV process does not yield any measureable sonoporative enhancement of transfection. Co-encapsulation of Ficoll PM 400 within the lipoplex-loaded emulsion, and its subsequent release using ADV, yield higher transfection efficiency than the lipoplex alone. The results demonstrate that ADV can have utility in the spatiotemporal control of gene delivery.
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Affiliation(s)
- Benjamin A. Juliar
- Department of Radiology, University of Michigan Health System, Ann Arbor, MI 48109, USA
| | - Melissa M. Bromley
- Department of Radiology, University of Michigan Health System, Ann Arbor, MI 48109, USA
| | - Alexander Moncion
- Department of Radiology, University of Michigan Health System, Ann Arbor, MI 48109, USA
- Applied Physics Program, University of Michigan, Ann Arbor, MI 48109, USA
| | - Denise C. Jones
- Department of Radiology, University of Michigan Health System, Ann Arbor, MI 48109, USA
| | - Eric G. O’Neill
- Department of Radiology, University of Michigan Health System, Ann Arbor, MI 48109, USA
| | | | - Renny T. Franceschi
- School of Dentistry, University of Michigan, Ann Arbor, MI 48109, USA
- Department of Biological Chemistry, University of Michigan, Ann Arbor, MI 48109, USA
- Department of Biomedical Engineering, University of Michigan, Ann Arbor, MI 48109, USA
| | - Mario L. Fabiilli
- Department of Radiology, University of Michigan Health System, Ann Arbor, MI 48109, USA
- Applied Physics Program, University of Michigan, Ann Arbor, MI 48109, USA
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217
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Kirchenbuechler I, Kirchenbuechler D, Elbaum M. Correlation between cationic lipid-based transfection and cell division. Exp Cell Res 2016; 345:1-5. [DOI: 10.1016/j.yexcr.2014.11.019] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2014] [Revised: 10/27/2014] [Accepted: 11/24/2014] [Indexed: 12/12/2022]
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218
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Pu L, Wang J, Li N, Chai Q, Irache JM, Wang G, Tang JZ, Gu Z. Synthesis of Electroneutralized Amphiphilic Copolymers with Peptide Dendrons for Intramuscular Gene Delivery. ACS APPLIED MATERIALS & INTERFACES 2016; 8:13724-13734. [PMID: 27181258 DOI: 10.1021/acsami.6b02592] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Intramuscular gene delivery materials are of great importance in plasmid-based gene therapy system, but there is limited information so far on how to design and synthesize them. A previous study showed that the peptide dendron-based triblock copolymer with its components arranged in a reversed biomembrane architecture could significantly increase intramuscular gene delivery and expression. Herein, we wonder whether copolymers with biomembrane-mimicking arrangement may have similar function on intramuscular gene delivery. Meanwhile, it is of great significance to uncover the influence of electric charge and molecular structure on the function of the copolymers. To address the issues, amphiphilic triblock copolymers arranged in hydrophilic-hydrophobic-hydrophilic structure were constructed despite the paradoxical characteristics and difficulties in synthesizing such hydrophilic but electroneutral molecules. The as-prepared two copolymers, dendronG2(l-lysine-OH)-poly propylene glycol2k(PPG2k)-dendronG2(l-lysine-OH) (rL2PL2) and dendronG3(l-lysine-OH)-PPG2k-dendronG3(l-lysine-OH) (rL3PL3), were in similar structure but had different hydrophilic components and surface charges, thus leading to different capabilities in gene delivery and expression in skeletal muscle. rL2PL2 was more efficient than Pluronic L64 and rL3PL3 when mediating luciferase, β-galactosidase, and fluorescent protein expressions. Furthermore, rL2PL2-mediated growth-hormone-releasing hormone expression could significantly induce mouse body weight increase in the first 21 days after injection. In addition, both rL2PL2 and rL3PL3 showed good in vivo biosafety in local and systemic administration. Altogether, rL2PL2-mediated gene expression in skeletal muscle exhibited applicable potential for gene therapy. The study revealed that the molecular structure and electric charge were critical factors governing the function of the copolymers for intramuscular gene delivery. It can be concluded that, combined with the previous study, both structural arrangements either reverse or similar to the biomembrane are effective in designing such copolymers. It also provides an innovative way in designing and synthesizing new electroneutralized triblock copolymers, which could be used safely and efficiently for intramuscular gene delivery.
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Affiliation(s)
- Linyu Pu
- National Engineering Research Center for Biomaterials, Sichuan University , Chengdu 610064, China
- School of Materials Science and Engineering, Southwest University of Science and Technology , Mianyang 621010, China
| | - Jiali Wang
- National Engineering Research Center for Biomaterials, Sichuan University , Chengdu 610064, China
| | - Na Li
- National Engineering Research Center for Biomaterials, Sichuan University , Chengdu 610064, China
| | - Qiuxia Chai
- National Engineering Research Center for Biomaterials, Sichuan University , Chengdu 610064, China
| | - Juan M Irache
- School of Pharmacy, University of Navarra , Pamplona 31008, Spain
| | - Gang Wang
- National Engineering Research Center for Biomaterials, Sichuan University , Chengdu 610064, China
| | - James Zhenggui Tang
- Research Institute in Healthcare Science, Faculty of Science & Engineering, University of Wolverhampton , Wolverhampton WV11SB, United Kingdom
| | - Zhongwei Gu
- National Engineering Research Center for Biomaterials, Sichuan University , Chengdu 610064, China
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Jayant RD, Sosa D, Kaushik A, Atluri V, Vashist A, Tomitaka A, Nair M. Current status of non-viral gene therapy for CNS disorders. Expert Opin Drug Deliv 2016; 13:1433-45. [PMID: 27249310 DOI: 10.1080/17425247.2016.1188802] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
INTRODUCTION Viral and non-viral vectors have been used as methods of delivery in gene therapy for many CNS diseases. Currently, viral vectors such as adeno-associated viruses (AAV), retroviruses, lentiviruses, adenoviruses and herpes simplex viruses (HHV) are being used as successful vectors in gene therapy at clinical trial levels. However, many disadvantages have risen from their usage. Non-viral vectors like cationic polymers, cationic lipids, engineered polymers, nanoparticles, and naked DNA offer a much safer option and can therefore be explored for therapeutic purposes. AREAS COVERED This review discusses different types of viral and non-viral vectors for gene therapy and explores clinical trials for CNS diseases that have used these types of vectors for gene delivery. Highlights include non-viral gene delivery and its challenges, possible strategies to improve transfection, regulatory issues concerning vector usage, and future prospects for clinical applications. EXPERT OPINION Transfection efficiency of cationic lipids and polymers can be improved through manipulation of molecules used. Efficacy of cationic lipids is dependent on cationic charge, saturation levels, and stability of linkers. Factors determining efficacy of cationic polymers are total charge density, molecular weights, and complexity of molecule. All of the above mentioned parameters must be taken care for efficient gene delivery.
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Affiliation(s)
- Rahul Dev Jayant
- a Center for Personalized Nanomedicine, Department of Immunology, Herbert Wertheim College of Medicine , Florida International University , Miami , FL , USA
| | - Daniela Sosa
- a Center for Personalized Nanomedicine, Department of Immunology, Herbert Wertheim College of Medicine , Florida International University , Miami , FL , USA
| | - Ajeet Kaushik
- a Center for Personalized Nanomedicine, Department of Immunology, Herbert Wertheim College of Medicine , Florida International University , Miami , FL , USA
| | - Venkata Atluri
- a Center for Personalized Nanomedicine, Department of Immunology, Herbert Wertheim College of Medicine , Florida International University , Miami , FL , USA
| | - Arti Vashist
- a Center for Personalized Nanomedicine, Department of Immunology, Herbert Wertheim College of Medicine , Florida International University , Miami , FL , USA
| | - Asahi Tomitaka
- a Center for Personalized Nanomedicine, Department of Immunology, Herbert Wertheim College of Medicine , Florida International University , Miami , FL , USA
| | - Madhavan Nair
- a Center for Personalized Nanomedicine, Department of Immunology, Herbert Wertheim College of Medicine , Florida International University , Miami , FL , USA
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Namvar A, Bolhassani A, Khairkhah N, Motevalli F. Physicochemical properties of polymers: An important system to overcome the cell barriers in gene transfection. Biopolymers 2016; 103:363-75. [PMID: 25761628 DOI: 10.1002/bip.22638] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2014] [Revised: 03/04/2015] [Accepted: 03/04/2015] [Indexed: 12/22/2022]
Abstract
Delivery of the macromolecules including DNA, miRNA, and antisense oligonucleotides is typically mediated by carriers due to the large size and negative charge. Different physical (e.g., gene gun or electroporation), and chemical (e.g., cationic polymer or lipid) vectors have been already used to improve the efficiency of gene transfer. Polymer-based DNA delivery systems have attracted special interest, in particular via intravenous injection with many intra- and extracellular barriers. The recent progress has shown that stimuli-responsive polymers entitled as multifunctional nucleic acid vehicles can act to target specific cells. These nonviral carriers are classified by the type of stimulus including reduction potential, pH, and temperature. Generally, the physicochemical characterization of DNA-polymer complexes is critical to enhance the transfection potency via protection of DNA from nuclease digestion, endosomal escape, and nuclear localization. The successful clinical applications will depend on an exact insight of barriers in gene delivery and development of carriers overcoming these barriers. Consequently, improvement of novel cationic polymers with low toxicity and effective for biomedical use has attracted a great attention in gene therapy. This article summarizes the main physicochemical and biological properties of polyplexes describing their gene transfection behavior, in vitro and in vivo. In this line, the relative efficiencies of various cationic polymers are compared.
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Affiliation(s)
- Ali Namvar
- Department of Hepatitis and AIDS, Pasteur Institute of Iran, Tehran, Iran
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221
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Khodabandehloo H, Zahednasab H, Ashrafi Hafez A. Nanocarriers Usage for Drug Delivery in Cancer Therapy. IRANIAN JOURNAL OF CANCER PREVENTION 2016; 9:e3966. [PMID: 27482328 PMCID: PMC4951761 DOI: 10.17795/ijcp-3966] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/31/2015] [Revised: 10/12/2015] [Accepted: 03/14/2016] [Indexed: 01/08/2023]
Abstract
Conventional therapeutic agents have displayed significant shortcomings. For this reason, important achievements have effectively made in biotechnology for delivering the therapeutic agents to the site of action, and diminish side effects. Polymeric carriers, micelles, dendrimers, liposomes, solid lipid carriers, gold carriers, viral carriers, nanotubes and magnetic carriers incorporating cytotoxic therapeutics have developed. To improve biological distribution of therapeutic drugs, some modified carriers have designed in optimal size and modified surface area. Delivery of carriers to target cells could be done by passive and active targeting.
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Affiliation(s)
- Hadi Khodabandehloo
- Department of Biochemistry, Faculty of Medicine, Tehran University of Medical Sciences, Tehran, IR Iran
| | - Hamid Zahednasab
- Institute of Biochemistry and Biophysics, University of Tehran, Tehran, IR Iran
| | - Asghar Ashrafi Hafez
- Cancer Research Center, Shahid Beheshti University of Medical Sciences, Tehran, IR Iran
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222
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Prenyl Ammonium Salts--New Carriers for Gene Delivery: A B16-F10 Mouse Melanoma Model. PLoS One 2016; 11:e0153633. [PMID: 27088717 PMCID: PMC4835110 DOI: 10.1371/journal.pone.0153633] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2015] [Accepted: 04/02/2016] [Indexed: 11/19/2022] Open
Abstract
PURPOSE Prenyl ammonium iodides (Amino-Prenols, APs), semi-synthetic polyprenol derivatives were studied as prospective novel gene transfer agents. METHODS AP-7, -8, -11 and -15 (aminoprenols composed of 7, 8, 11 or 15 isoprene units, respectively) were examined for their capacity to form complexes with pDNA, for cytotoxicity and ability to transfect genes to cells. RESULTS All the carriers were able to complex DNA. The highest, comparable to commercial reagents, transfection efficiency was observed for AP-15. Simultaneously, AP-15 exhibited the lowest negative impact on cell viability and proliferation--considerably lower than that of commercial agents. AP-15/DOPE complexes were also efficient to introduce pDNA to cells, without much effect on cell viability. Transfection with AP-15/DOPE complexes influenced the expression of a very few among 44 tested genes involved in cellular lipid metabolism. Furthermore, complexes containing AP-15 and therapeutic plasmid, encoding the TIMP metallopeptidase inhibitor 2 (TIMP2), introduced the TIMP2 gene with high efficiency to B16-F10 melanoma cells but not to B16-F10 melanoma tumors in C57BL/6 mice, as confirmed by TIMP2 protein level determination. CONCLUSION Obtained results indicate that APs have a potential as non-viral vectors for cell transfection.
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Kaya M, Akyuz B, Bulut E, Sargin I, Tan G, Erdonmez D, Maheta M, Satkauskas S, Mickevičius S. DNA interaction, antitumor and antimicrobial activities of three-dimensional chitosan ring produced from the body segments of a diplopod. Carbohydr Polym 2016; 146:80-9. [PMID: 27112853 DOI: 10.1016/j.carbpol.2016.03.033] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2016] [Revised: 03/07/2016] [Accepted: 03/14/2016] [Indexed: 02/05/2023]
Abstract
Commercially available chitins and the chitin isolated from mushrooms, insect cuticles, shells of shrimp, crab and crayfish reported in the literature are in forms of powder, flake or granule. Three-dimensional chitins have been only known from the sponges but still three-dimensional chitosan has not been reported yet. In this study, we produced three-dimensional chitin and chitosan rings from the body segments of a diplopod species (Julus terrestris). Obtained chitin and chitosan rings were characterized (by FT-IR, SEM, TGA, XRD, dilute solution viscometry and EA) and compared with commercial chitin and chitosan. The interactions with plasmid DNA was studied at varying concentrations of chitosan (0.04, 0.4 and 4mg/mL). Antitumor activity tests were conducted (L929 and HeLa), low cytotoxicity and high antiproliferative activity was observed. Antimicrobial activities of J. terrestris chitosan were investigated on twelve microorganisms and maximum inhibition (15.6±1.154mm) was recorded for common human pathogen Staphylococcus aureus.
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Affiliation(s)
- Murat Kaya
- Department of Biotechnology and Molecular Biology, Faculty of Science and Letters Aksaray University, 68100 Aksaray, Turkey.
| | - Bahar Akyuz
- Department of Biotechnology and Molecular Biology, Faculty of Science and Letters Aksaray University, 68100 Aksaray, Turkey
| | - Esra Bulut
- Department of Biotechnology and Molecular Biology, Faculty of Science and Letters Aksaray University, 68100 Aksaray, Turkey
| | - Idris Sargin
- Department of Biotechnology and Molecular Biology, Faculty of Science and Letters Aksaray University, 68100 Aksaray, Turkey
| | - Gamze Tan
- Department of Biology, Faculty of Science and Letters Aksaray University, 68100 Aksaray, Turkey
| | - Demet Erdonmez
- Department of Biology, Faculty of Science and Letters Aksaray University, 68100 Aksaray, Turkey
| | - Mansi Maheta
- Faculty of Natural Sciences, Vytautas Magnus University, LT-3000 Kaunas, Lithuania
| | - Saulius Satkauskas
- Faculty of Natural Sciences, Vytautas Magnus University, LT-3000 Kaunas, Lithuania
| | - Saulius Mickevičius
- Faculty of Natural Sciences, Vytautas Magnus University, LT-3000 Kaunas, Lithuania
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224
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Yu Y, Hu Y, Li X, Liu Y, Li M, Yang J, Sheng W. Spermine-modified Antheraea pernyi silk fibroin as a gene delivery carrier. Int J Nanomedicine 2016; 11:1013-23. [PMID: 27042056 PMCID: PMC4798211 DOI: 10.2147/ijn.s82023] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
Abstract
The development of a novel cationized polymer used as a gene delivery carrier that can conveniently and effectively transfect cells resulting in a stably expressed target gene remains a challenge. Antheraea pernyi silk fibroin (ASF) is a cytocompatible and biodegradable natural polymer, and it possesses Arg-Gly-Asp sequences but a negative charge. In order to render ASF amenable to packaging plasmid DNA (pDNA), spermine was used to modify ASF to synthesize cationized ASF (CASF), which was used as a gene delivery carrier. CASF was characterized using trinitrobenzene sulfonic acid assay, the zeta potential determination, and a Fourier transform infrared analysis, and the results of these characterizations indicated that the -NH2 in spermine effectively reacts with the -COOH in the side chains of ASF. Spermine grafted to the side chains of ASF resulted in the conversion of the negative charge of ASF to a positive charge. CASF packaged pDNA and formed CASF/pDNA complexes, which exhibited spherical morphology with average particle sizes of 215-281 nm and zeta potential of approximately +3.0 mV to +3.2 mV. The results of the MTT assay, confocal laser scanning microscopy, and flow cytometry analysis in a human endothelial cell line revealed that CASF/pDNA complexes exhibited lower cytotoxicity and higher transfection efficiency compared to the pDNA complexes of polyethyleneimine. These results indicate that our synthesized CASF, a cationized polymer, is a potential gene delivery carrier with the advantages of biodegradability and low cytotoxicity.
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Affiliation(s)
- Yanni Yu
- National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, Suzhou, People’s Republic of China
| | - Yongpei Hu
- National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, Suzhou, People’s Republic of China
| | - Xiufang Li
- National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, Suzhou, People’s Republic of China
| | - Yu Liu
- National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, Suzhou, People’s Republic of China
| | - Mingzhong Li
- National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, Suzhou, People’s Republic of China
| | - Jicheng Yang
- Cell and Molecular Biology Institute, College of Medicine, Soochow University, Suzhou, People’s Republic of China
| | - Weihua Sheng
- Cell and Molecular Biology Institute, College of Medicine, Soochow University, Suzhou, People’s Republic of China
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225
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Cationic β-Cyclodextrin–Chitosan Conjugates as Potential Carrier for pmCherry-C1 Gene Delivery. Mol Biotechnol 2016; 58:287-98. [DOI: 10.1007/s12033-016-9927-0] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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226
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Teo PY, Cheng W, Hedrick JL, Yang YY. Co-delivery of drugs and plasmid DNA for cancer therapy. Adv Drug Deliv Rev 2016; 98:41-63. [PMID: 26529199 DOI: 10.1016/j.addr.2015.10.014] [Citation(s) in RCA: 157] [Impact Index Per Article: 19.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2015] [Revised: 10/21/2015] [Accepted: 10/23/2015] [Indexed: 12/12/2022]
Abstract
Cancer is an extremely complex disease involving multiple signaling pathways that enable tumor cells to evade programmed cell death, thus making cancer treatment extremely challenging. The use of combination therapy involving both gene therapy and chemotherapy has resulted in enhanced anti-cancer effects and has become an increasingly important strategy in medicine. This review will cover important design parameters that are incorporated into delivery systems for the co-administration of drug and plasmid-based nucleic acids (pDNA and shRNA), with particular emphasis on polymers as delivery materials. The unique challenges faced by co-delivery systems and the strategies to overcome such barriers will be discussed. In addition, the advantages and disadvantages of combination therapy using separate carrier systems versus the use of a single carrier will be evaluated. Finally, future perspectives in the design of novel platforms for the combined delivery of drugs and genes will be presented.
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227
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Yang PW, Lin TL, Liu IT, Hu Y, Jeng US, Gilbert EP. Small-Angle Neutron Scattering Studies on the Multilamellae Formed by Mixing Lamella-Forming Cationic Diblock Copolymers with Lipids and Their Interaction with DNA. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2016; 32:1828-1835. [PMID: 26818185 DOI: 10.1021/acs.langmuir.5b04672] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
We demonstrate that the lamella-forming polystyrene-block-poly(N-methyl-4-vinylpyridinium iodine) (PS-b-P4VPQ), with similar sizes of the PS and P4VPQ blocks, can be dispersed in the aqueous solutions by forming lipid/PS-b-P4VPQ multilamellae. Using small-angle neutron scattering (SANS) and 1,2-dipalmitoyl-d62-sn-glycero-3-phosphocholine (d62-DPPC) in D2O, a broad correlation peak is found in the scattering profile that signifies the formation of the loosely ordered d62-DPPC/PS-b-P4VPQ multilamellae. The thicknesses of the hydrophobic and hydrophilic layers of the d62-DPPC/PS-b-P4VPQ multilamellae are close to the PS layer and the condensed brush layer thicknesses as determined from previous neutron reflectometry studies on the PS-b-P4VPQ monolayer at the air-water interface. Such well-dispersed d62-DPPC/PS-b-P4VPQ multilamellae are capable of forming multilamellae with DNA in aqueous solution. It is found that the encapsulation of DNA in the hydrophilic layer of the d62-DPPC/PS-b-P4VPQ multilamellae slightly increases the thickness of the hydrophilic layer. Adding CaCl2 can enhance the DNA adsorption in the hydrophilic brush layer, and it is similar to that observed in the neutron reflectometry study of the DNA adsorption by the PS-b-P4VPQ monolayer.
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Affiliation(s)
- Po-Wei Yang
- Department of Engineering and System Science, National Tsing Hua University , Hsinchu 300, Taiwan, Republic of China
| | - Tsang-Lang Lin
- Department of Engineering and System Science, National Tsing Hua University , Hsinchu 300, Taiwan, Republic of China
| | - I-Ting Liu
- Department of Engineering and System Science, National Tsing Hua University , Hsinchu 300, Taiwan, Republic of China
| | - Yuan Hu
- Department of Engineering and System Science, National Tsing Hua University , Hsinchu 300, Taiwan, Republic of China
| | - U-Ser Jeng
- National Synchrotron Radiation Research Center (NSRRC) , Hsinchu, 300, Taiwan, Republic of China
| | - Elliot Paul Gilbert
- Bragg Institute, Australian Nuclear Science and Technology Organisation (ANSTO) , Locked Bag 2001, Kirrawee DC, New South Wales 2232, Australia
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228
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Giron-Gonzalez MD, Salto-Gonzalez R, Lopez-Jaramillo FJ, Salinas-Castillo A, Jodar-Reyes AB, Ortega-Muñoz M, Hernandez-Mateo F, Santoyo-Gonzalez F. Polyelectrolyte Complexes of Low Molecular Weight PEI and Citric Acid as Efficient and Nontoxic Vectors for in Vitro and in Vivo Gene Delivery. Bioconjug Chem 2016; 27:549-61. [DOI: 10.1021/acs.bioconjchem.5b00576] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- M. Dolores Giron-Gonzalez
- Department of Biochemistry and Molecular
Biology II, School of Pharmacy, and ‡Department of
Organic Chemistry, Biotechnology Institute, §Department of Analytical Chemistry, and ⊥Biocolloid and
Fluid Physics Group, Department of Applied Physics, Faculty
of Sciences, University of Granada, E-18071 Granada, Spain
| | - Rafael Salto-Gonzalez
- Department of Biochemistry and Molecular
Biology II, School of Pharmacy, and ‡Department of
Organic Chemistry, Biotechnology Institute, §Department of Analytical Chemistry, and ⊥Biocolloid and
Fluid Physics Group, Department of Applied Physics, Faculty
of Sciences, University of Granada, E-18071 Granada, Spain
| | - F. Javier Lopez-Jaramillo
- Department of Biochemistry and Molecular
Biology II, School of Pharmacy, and ‡Department of
Organic Chemistry, Biotechnology Institute, §Department of Analytical Chemistry, and ⊥Biocolloid and
Fluid Physics Group, Department of Applied Physics, Faculty
of Sciences, University of Granada, E-18071 Granada, Spain
| | - Alfonso Salinas-Castillo
- Department of Biochemistry and Molecular
Biology II, School of Pharmacy, and ‡Department of
Organic Chemistry, Biotechnology Institute, §Department of Analytical Chemistry, and ⊥Biocolloid and
Fluid Physics Group, Department of Applied Physics, Faculty
of Sciences, University of Granada, E-18071 Granada, Spain
| | - Ana Belen Jodar-Reyes
- Department of Biochemistry and Molecular
Biology II, School of Pharmacy, and ‡Department of
Organic Chemistry, Biotechnology Institute, §Department of Analytical Chemistry, and ⊥Biocolloid and
Fluid Physics Group, Department of Applied Physics, Faculty
of Sciences, University of Granada, E-18071 Granada, Spain
| | - Mariano Ortega-Muñoz
- Department of Biochemistry and Molecular
Biology II, School of Pharmacy, and ‡Department of
Organic Chemistry, Biotechnology Institute, §Department of Analytical Chemistry, and ⊥Biocolloid and
Fluid Physics Group, Department of Applied Physics, Faculty
of Sciences, University of Granada, E-18071 Granada, Spain
| | - Fernando Hernandez-Mateo
- Department of Biochemistry and Molecular
Biology II, School of Pharmacy, and ‡Department of
Organic Chemistry, Biotechnology Institute, §Department of Analytical Chemistry, and ⊥Biocolloid and
Fluid Physics Group, Department of Applied Physics, Faculty
of Sciences, University of Granada, E-18071 Granada, Spain
| | - Francisco Santoyo-Gonzalez
- Department of Biochemistry and Molecular
Biology II, School of Pharmacy, and ‡Department of
Organic Chemistry, Biotechnology Institute, §Department of Analytical Chemistry, and ⊥Biocolloid and
Fluid Physics Group, Department of Applied Physics, Faculty
of Sciences, University of Granada, E-18071 Granada, Spain
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229
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Ahmed T, Kamel AO, Wettig SD. Interactions between DNA and Gemini surfactant: impact on gene therapy: part I. Nanomedicine (Lond) 2016; 11:289-306. [PMID: 26785905 DOI: 10.2217/nnm.15.203] [Citation(s) in RCA: 53] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Nonviral gene therapy using gemini surfactants is a unique approach to medicine that can be adapted toward the treatment of various diseases. Recently, gemini surfactants have been utilized as candidates for the formation of nonviral vectors. The chemical structure of the surfactant (variations in the alkyl tail length and spacer/head group) and the resulting physicochemical properties of the lipoplexes are critical parameters for efficient gene transfection. Moreover, studying the interaction of the surfactant with DNA can help in designing an efficient vector and understanding how transfection complexes overcome various cellular barriers. Part I of this review provides an overview of various types of gemini surfactants designed for gene therapy and their transfection efficiency; and Part II will focus on different novel methods utilized to understand the interactions between the gemini and DNA in a lipoplex.
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Affiliation(s)
- Taksim Ahmed
- School of Pharmacy, University of Waterloo, 200 University Ave. W., Waterloo, ON N2L 3G1, Canada.,Leslie Dan Faculty of Pharmacy, University of Toronto, 144 College Street, Toronto, ON M5S 3M2, Canada
| | - Amany O Kamel
- School of Pharmacy, University of Waterloo, 200 University Ave. W., Waterloo, ON N2L 3G1, Canada.,Department of Pharmaceutics & Industrial Pharmacy, Faculty of Pharmacy, Ain Shams University, Khalifa El-Maamon Street, Abbasiya Square, Cairo 11566, Egypt
| | - Shawn D Wettig
- School of Pharmacy, University of Waterloo, 200 University Ave. W., Waterloo, ON N2L 3G1, Canada.,Waterloo Institute for Nanotechnology, University of Waterloo, 200 University Ave. W., Waterloo, ON N2L 3G1, Canada
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230
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Kuninty PR, Schnittert J, Storm G, Prakash J. MicroRNA Targeting to Modulate Tumor Microenvironment. Front Oncol 2016; 6:3. [PMID: 26835418 PMCID: PMC4717414 DOI: 10.3389/fonc.2016.00003] [Citation(s) in RCA: 96] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2015] [Accepted: 01/03/2016] [Indexed: 02/02/2023] Open
Abstract
Communication between stromal cells and tumor cells initiates tumor growth, angiogenesis, invasion, and metastasis. Stromal cells include cancer-associated fibroblasts, tumor-associated macrophages, pericytes, endothelial cells, and infiltrating immune cells. MicroRNAs (miRNAs) in the tumor microenvironment have emerged as key players involved in the development of cancer and its progression. miRNAs are small endogenous non-protein-coding RNAs that negatively regulate the expression of multiple target genes at post-transcriptional level and thereby control many cellular processes. In this review, we provide a comprehensive overview of miRNAs dysregulated in different stromal cells and their impact on the regulation of intercellular crosstalk in the tumor microenvironment. We also discuss the therapeutic significance potential of miRNAs to modulate the tumor microenvironment. Since miRNA delivery is quite challenging and the biggest hurdle for clinical translation of miRNA therapeutics, we review various non-viral miRNA delivery systems that can potentially be used for targeting miRNA to stromal cells within the tumor microenvironment.
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Affiliation(s)
- Praneeth R Kuninty
- Targeted Therapeutics Section, Department of Biomaterials, Science and Technology, MIRA Institute for Biomedical Technology and Technical Medicine, University of Twente , Enschede , Netherlands
| | - Jonas Schnittert
- Targeted Therapeutics Section, Department of Biomaterials, Science and Technology, MIRA Institute for Biomedical Technology and Technical Medicine, University of Twente , Enschede , Netherlands
| | - Gert Storm
- Targeted Therapeutics Section, Department of Biomaterials, Science and Technology, MIRA Institute for Biomedical Technology and Technical Medicine, University of Twente, Enschede, Netherlands; Department of Pharmaceutics, Utrecht University, Utrecht, Netherlands
| | - Jai Prakash
- Targeted Therapeutics Section, Department of Biomaterials, Science and Technology, MIRA Institute for Biomedical Technology and Technical Medicine, University of Twente , Enschede , Netherlands
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231
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Zhang D, Song Y, Wang Y, Liu X, Liu X, Ma X. Insight of In Vitro Small-Interfering RNA Release From Chitosan Nanoparticles Under Enzymolysis With Förster Resonance Energy Transfer Analysis. J Pharm Sci 2016; 105:301-7. [PMID: 26554743 DOI: 10.1002/jps.24698] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2015] [Revised: 09/11/2015] [Accepted: 09/30/2015] [Indexed: 01/17/2023]
Abstract
Small-interfering RNA (siRNA)-mediated gene silencing with the aid of chitosan (CS)-based carriers has shown efficient and reliable outcome in vitro, but the gene silencing efficiency in vivo is still limited. It is of great importance to balance the protection and release of siRNA from nanoparticles (NPs) so as to achieve high efficiency. However, siRNA release profile from CS/siRNA NPs has been rarely concerned. Here, Förster resonance energy transfer technique was adopted for in vitro investigation of siRNA release from CS NPs in lysozyme-contained buffer. The results clearly showed that siRNA molecules experienced a fast and short release phase under lysozyme competition to both CS and siRNA, and then a slow and long release under lysozyme degradation on CS. Moreover, lysozyme competition played more important role than enzymolysis on trigging siRNA release. This preliminary study of siRNA release is the first step to get insight of in vivo siRNA release mechanism from CS/siRNA NPs, which will be helpful to adjust the design of CS/siRNA NPs for balancing the protection and release of siRNA molecules.
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232
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Chen Y, Li Y, Gao J, Cao Z, Jiang Q, Liu J, Jiang Z. Enzymatic PEGylated Poly(lactone-co-β-amino ester) Nanoparticles as Biodegradable, Biocompatible and Stable Vectors for Gene Delivery. ACS APPLIED MATERIALS & INTERFACES 2016; 8:490-501. [PMID: 26673948 DOI: 10.1021/acsami.5b09437] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
We have developed new, efficient gene delivery systems based on PEGylated poly(lactone-co-β-amino ester) block copolymers that are biodegradable, stable and low in toxicity. The PEG-poly[PDL-co-3-(4-(methylene)piperidin-1-yl)propanoate] (PEG-PPM) diblock and PPM-PEG-PPM triblock copolymers with various compositions were synthesized in one step via lipase-catalyzed copolymerization of ω-pentadecalactone (PDL) and ethyl 3-(4-(hydroxymethyl)piperidin-1-yl)propanoate (EHMPP) with an appropriate PEG (MeO-PEG-OH or HO-PEG-OH). The amphiphilic block copolymers are capable of condensing DNA in aqueous medium via a self-assembly process to form polyplex micelle nanoparticles with desirable particle sizes (70-140 nm). These micelles possess low CMC values and are stable in the medium containing serum protein molecules (FBS). Among the PEG-PPM and PPM-PEG-PPM micelles, the PEG-PPM-15% PDL micelle particles exhibited high DNA-binding ability, the fastest cellular uptake rate and highest gene transfection efficacy. Flow cytometry analysis shows that LucDNA/PEG-PPM-15% PDL polyplex micelles can effectively escape from endosomal degradation after cellular uptake likely due to the presence of the tertiary amine groups in the copolymer chains that act as proton sponges. In vitro cytotoxicity and hemolysis assay experiments indicate that all copolymer samples are nonhemolytic and have minimal toxicity toward COS-7 cells within the polymer concentration range (≤200 μg/mL) used for the gene transfection. These results demonstrate that the PEGylated poly(lactone-co-β-amino ester) block copolymers are promising new vectors for gene delivery applications.
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Affiliation(s)
- Ya Chen
- Department of Biomedical Engineering, School of Engineering, Sun Yat-sen University , Guangzhou, Guangdong 510006, China
| | - Yingqin Li
- Department of Biomedical Engineering, School of Engineering, Sun Yat-sen University , Guangzhou, Guangdong 510006, China
| | - Jinbiao Gao
- Department of Biomedical Engineering, School of Engineering, Sun Yat-sen University , Guangzhou, Guangdong 510006, China
| | - Zhong Cao
- Department of Biomedical Engineering, School of Engineering, Sun Yat-sen University , Guangzhou, Guangdong 510006, China
| | - Qing Jiang
- Department of Biomedical Engineering, School of Engineering, Sun Yat-sen University , Guangzhou, Guangdong 510006, China
| | - Jie Liu
- Department of Biomedical Engineering, School of Engineering, Sun Yat-sen University , Guangzhou, Guangdong 510006, China
| | - Zhaozhong Jiang
- Department of Biomedical Engineering, Molecular Innovations Center, Yale University , 600 West Campus Drive, West Haven, Connecticut 06516, United States
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233
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Ghobadi AF, Letteri R, Parelkar SS, Zhao Y, Chan-Seng D, Emrick T, Jayaraman A. Dispersing Zwitterions into Comb Polymers for Nonviral Transfection: Experiments and Molecular Simulation. Biomacromolecules 2016; 17:546-57. [DOI: 10.1021/acs.biomac.5b01462] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Ahmadreza F. Ghobadi
- Department
of Chemical and Biomolecular Engineering, University of Delaware, 150 Academy Street, Newark, Delaware 19716 United States
| | - Rachel Letteri
- Department
of Polymer Science and Engineering, University of Massachusetts, 120
Governors Drive, Amherst, Massachusetts 01003, United States
| | - Sangram S. Parelkar
- Department
of Polymer Science and Engineering, University of Massachusetts, 120
Governors Drive, Amherst, Massachusetts 01003, United States
| | - Yue Zhao
- Quantum
Beam Science Center, Japan Atomic Energy Agency, Tokai, Ibaraki 319-1195, Japan
| | - Delphine Chan-Seng
- Institut Charles
Sadron UPR22-CNRS, 23 rue du Loess, 67034 Strasbourg, France
| | - Todd Emrick
- Department
of Polymer Science and Engineering, University of Massachusetts, 120
Governors Drive, Amherst, Massachusetts 01003, United States
| | - Arthi Jayaraman
- Department
of Chemical and Biomolecular Engineering, University of Delaware, 150 Academy Street, Newark, Delaware 19716 United States
- Department
of Materials Science and Engineering, University of Delaware, 201 DuPont
Hall, Newark, Delaware 19716 United States
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234
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Gao YG, Tang Q, Shi YD, Zhang Y, Wang R, Lu ZL. A novel non-viral gene vector for hepatocyte-targeting and in situ monitoring of DNA delivery in single cells. RSC Adv 2016. [DOI: 10.1039/c6ra08935f] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
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235
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Li M, Zhang F, Chen K, Wang C, Su Y, Liu Y, Zhou J, Wang W. Nanoparticles and mesenchymal stem cells: a win-win alliance for anticancer drug delivery. RSC Adv 2016. [DOI: 10.1039/c6ra00398b] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
Schematic illustration of the combination of NPs and MSCs drug delivery systems for cancer therapy.
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Affiliation(s)
- Min Li
- State Key Laboratory of Natural Medicines
- Department of Pharmaceutics
- China Pharmaceutical University
- Nanjing 210009
- China
| | - Fangrong Zhang
- State Key Laboratory of Natural Medicines
- Department of Pharmaceutics
- China Pharmaceutical University
- Nanjing 210009
- China
| | - Kerong Chen
- State Key Laboratory of Natural Medicines
- Department of Pharmaceutics
- China Pharmaceutical University
- Nanjing 210009
- China
| | - Cheng Wang
- State Key Laboratory of Natural Medicines
- Department of Pharmaceutics
- China Pharmaceutical University
- Nanjing 210009
- China
| | - Yujie Su
- State Key Laboratory of Natural Medicines
- Department of Pharmaceutics
- China Pharmaceutical University
- Nanjing 210009
- China
| | - Yuan Liu
- State Key Laboratory of Natural Medicines
- Department of Pharmaceutics
- China Pharmaceutical University
- Nanjing 210009
- China
| | - Jianping Zhou
- State Key Laboratory of Natural Medicines
- Department of Pharmaceutics
- China Pharmaceutical University
- Nanjing 210009
- China
| | - Wei Wang
- State Key Laboratory of Natural Medicines
- Department of Pharmaceutics
- China Pharmaceutical University
- Nanjing 210009
- China
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236
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Gao YG, Alam U, Tang Q, Shi YD, Zhang Y, Wang R, Lu ZL. Functional lipids based on [12]aneN3 and naphthalimide as efficient non-viral gene vectors. Org Biomol Chem 2016; 14:6346-54. [DOI: 10.1039/c6ob00917d] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Small organic non-viral gene vectors with the structural combinations of (aliphatic chain)–naphthalimide–[12]aneN3 (11a, b) and naphthalimide–(aliphatic chain)–[12]aneN3 (12a–c) were synthesized and fully characterized.
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Affiliation(s)
- Yong-Guang Gao
- Key Laboratory of Theoretical and Computational Photochemistry
- Ministry of Education
- College of Chemistry
- Beijing Normal University
- Beijing 100875
| | - Uzair Alam
- Key Laboratory of Theoretical and Computational Photochemistry
- Ministry of Education
- College of Chemistry
- Beijing Normal University
- Beijing 100875
| | - Quan Tang
- Key Laboratory of Theoretical and Computational Photochemistry
- Ministry of Education
- College of Chemistry
- Beijing Normal University
- Beijing 100875
| | - You-Di Shi
- Key Laboratory of Theoretical and Computational Photochemistry
- Ministry of Education
- College of Chemistry
- Beijing Normal University
- Beijing 100875
| | - Ying Zhang
- Key Laboratory of Theoretical and Computational Photochemistry
- Ministry of Education
- College of Chemistry
- Beijing Normal University
- Beijing 100875
| | - Ruibing Wang
- State Key Laboratory of Quality Research in Chinese Medicine
- Institute of Chinese Medical Sciences
- University of Macau
- Taipa
- China
| | - Zhong-Lin Lu
- Key Laboratory of Theoretical and Computational Photochemistry
- Ministry of Education
- College of Chemistry
- Beijing Normal University
- Beijing 100875
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237
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Opanasopit P, Leksantikul L, Niyomtham N, Rojanarata T, Ngawhirunpat T, Yingyongnarongkul BE. Cationic niosomes an effective gene carrier composed of novel spermine-derivative cationic lipids: effect of central core structures. Pharm Dev Technol 2015; 22:350-359. [PMID: 26708923 DOI: 10.3109/10837450.2015.1125925] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
CONTEXT Cationic niosomes formulated from Span 20, cholesterol (Chol) and novel spermine-based cationic lipids of multiple central core structures (di(oxyethyl)amino, di(oxyethyl)amino carboxy, 3-amino-1,2-dioxypropyl and 2-amino-1,3-dioxypropyl) were successfully prepared for improving transfection efficiency in vitro. The niosomes composed of spermine cationic lipid with central core structure of di(oxyethyl)amino revealed the highest gene transfection efficiency. OBJECTIVES To investigate the factors affecting gene transfection and cell viability including differences in the central core structures of cationic lipids, the composition of vesicles, molar ratio of cationic lipids in formulations and the weight ratio of niosomes to DNA. METHODS Cationic niosomes composed of nonionic surfactants (Span20), cholesterol and spermine-based cationic lipids of multiple central core structures were formulated. Gene transfection and cell viability were evaluated on a human cervical carcinoma cell line (HeLa cells) using pDNA encoding green fluorescent protein (pEGFP-C2). The morphology, size and charge were also characterized. RESULTS AND DISCUSSION High transfection efficiency was obtained from cationic niosomes composed of Span20:Chol:cationic lipid at the molar ratio of 2.5:2.5:0.5 mM. Cationic lipids with di(oxyethyl)amino as a central core structure exhibited highest transfection efficiency. In addition, there was also no serum effect on transfection efficiency. CONCLUSIONS These novel cationic niosomes may constitute a good alternative carrier for gene transfection.
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Affiliation(s)
- Praneet Opanasopit
- a Faculty of Pharmacy , Pharmaceutical Development of Green Innovations Group (PDGIG), Silpakorn University , Pathom , Nakhon , Thailand , and
| | - Lalita Leksantikul
- a Faculty of Pharmacy , Pharmaceutical Development of Green Innovations Group (PDGIG), Silpakorn University , Pathom , Nakhon , Thailand , and
| | - Nattisa Niyomtham
- b Department of Chemistry and Center of Excellence for Innovation in Chemistry , Faculty of Science, Ramkhamhaeng University , Bangkok , Thailand
| | - Theerasak Rojanarata
- a Faculty of Pharmacy , Pharmaceutical Development of Green Innovations Group (PDGIG), Silpakorn University , Pathom , Nakhon , Thailand , and
| | - Tanasait Ngawhirunpat
- a Faculty of Pharmacy , Pharmaceutical Development of Green Innovations Group (PDGIG), Silpakorn University , Pathom , Nakhon , Thailand , and
| | - Boon-Ek Yingyongnarongkul
- b Department of Chemistry and Center of Excellence for Innovation in Chemistry , Faculty of Science, Ramkhamhaeng University , Bangkok , Thailand
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238
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trans-2-Aminocyclohexanol-based amphiphiles as highly efficient helper lipids for gene delivery by lipoplexes. BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES 2015; 1848:3113-25. [DOI: 10.1016/j.bbamem.2015.08.021] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/19/2015] [Revised: 08/26/2015] [Accepted: 08/28/2015] [Indexed: 11/17/2022]
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239
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Rozenfeld JHK, Duarte EL, Barbosa LRS, Lamy MT. The effect of an oligonucleotide on the structure of cationic DODAB vesicles. Phys Chem Chem Phys 2015; 17:7498-506. [PMID: 25706300 DOI: 10.1039/c4cp05652c] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The effect of a small single-stranded oligonucleotide (ODN) on the structure of cationic DODAB vesicles was investigated by means of differential scanning calorimetry (DSC), small angle X-ray scattering (SAXS) and electron spin resonance (ESR) spectroscopy. ODN adsorption induced coalescence of vesicles and formation of multilamellar structures with close contact between lamellae. It also increased the phase transition temperature by 10 °C but decreased transition cooperativity. The ODN rigidified and stabilized the gel phase. In the fluid phase, a simultaneous decrease of ordering close to the bilayer surface and increase in bilayer core rigidity was observed in the presence of the ODN. These effects may be due not only to electrostatic shielding of DODAB head groups but also to superficial dehydration of the bilayers. The data suggest that oligonucleotides may induce the formation of a multilamellar poorly hydrated coagel-like phase below phase transition. These effects should be taken into account when planning ODN delivery employing cationic bilayer carriers.
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240
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Hendricks BK, Cohen-Gadol AA, Miller JC. Novel delivery methods bypassing the blood-brain and blood-tumor barriers. Neurosurg Focus 2015; 38:E10. [PMID: 25727219 DOI: 10.3171/2015.1.focus14767] [Citation(s) in RCA: 76] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Glioblastoma (GBM) is the most common primary brain tumor and carries a grave prognosis. Despite years of research investigating potentially new therapies for GBM, the median survival rate of individuals with this disease has remained fairly stagnant. Delivery of drugs to the tumor site is hampered by various barriers posed by the GBM pathological process and by the complex physiology of the blood-brain and blood-cerebrospinal fluid barriers. These anatomical and physiological barriers serve as a natural protection for the brain and preserve brain homeostasis, but they also have significantly limited the reach of intraparenchymal treatments in patients with GBM. In this article, the authors review the functional capabilities of the physical and physiological barriers that impede chemotherapy for GBM, with a specific focus on the pathological alterations of the blood-brain barrier (BBB) in this disease. They also provide an overview of current and future methods for circumventing these barriers in therapeutic interventions. Although ongoing research has yielded some potential options for future GBM therapies, delivery of chemotherapy medications across the BBB remains elusive and has limited the efficacy of these medications.
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Affiliation(s)
- Benjamin K Hendricks
- Goodman Campbell Brain and Spine, Indiana University Department of Neurological Surgery; and
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241
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Wang LH, Wu DC, Xu HX, You YZ. High DNA-Binding Affinity and Gene-Transfection Efficacy of Bioreducible Cationic Nanomicelles with a Fluorinated Core. Angew Chem Int Ed Engl 2015; 55:755-9. [PMID: 26586102 DOI: 10.1002/anie.201508695] [Citation(s) in RCA: 89] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2015] [Indexed: 11/11/2022]
Abstract
During the last two decades, cationic polymers have become one of the most promising synthetic vectors for gene transfection. However, the weak interactions formed between DNA and cationic polymers result in low transfection efficacy. Furthermore, the polyplexes formed between cationic polymers and DNA generally exhibit poor stability and toxicity because of the large excess of cationic polymer typically required for complete DNA condensation. Herein, we report the preparation of a novel class of bioreducible cationic nanomicelles by the use of disulfide bonds to connect the cationic shell to the fluorocarbon core. These bioreducible nanomicelles form strong interactions with DNA and completely condense DNA at an N/P ratio of 1. The resulting nanomicelle/DNA polyplexes exhibited high biocompatibility and performed very effectively as a gene-delivery system.
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Affiliation(s)
- Long-Hai Wang
- Key Laboratory of Soft Matter Chemistry, Chinese Academy of Sciences and Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei, Anhui, 230026 (China)
| | - De-Cheng Wu
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Polymer Physics and Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190 (P.R. China)
| | - Hang-Xun Xu
- Key Laboratory of Soft Matter Chemistry, Chinese Academy of Sciences and Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei, Anhui, 230026 (China)
| | - Ye-Zi You
- Key Laboratory of Soft Matter Chemistry, Chinese Academy of Sciences and Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei, Anhui, 230026 (China).
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242
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Wang LH, Wu DC, Xu HX, You YZ. High DNA-Binding Affinity and Gene-Transfection Efficacy of Bioreducible Cationic Nanomicelles with a Fluorinated Core. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201508695] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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243
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Drug nano-reservoirs synthesized using layer-by-layer technologies. Biotechnol Adv 2015; 33:1310-26. [DOI: 10.1016/j.biotechadv.2015.04.005] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2015] [Revised: 03/25/2015] [Accepted: 04/02/2015] [Indexed: 12/18/2022]
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244
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Antila HS, Härkönen M, Sammalkorpi M. Chemistry specificity of DNA-polycation complex salt response: a simulation study of DNA, polylysine and polyethyleneimine. Phys Chem Chem Phys 2015; 17:5279-89. [PMID: 25607687 DOI: 10.1039/c4cp04967e] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
In this work, the chemistry specific stability determining factors of DNA-polycation complexes are examined by performing all-atom molecular dynamics simulations. To this end, we conduct a systematic variation of polycation line charge through polyethyleneimine (PEI) protonation and polycation chemistry via comparison with poly-l-lysine (PLL). Our simulations show that increasing line charge of the polycation alone does not lead to more salt tolerant complexes. Instead, the effective charge compensation by the polycation correlates with the increased stability of the complex against additional salt. The salt stability of PEI-DNA complexes also links to the proton sponge property of weak polycations, commonly assumed to be behind the effectivity of PEI as a gene delivery vector. Examination of the complexes reveals the mechanism behind this behaviour; more Cl(-) ions are attracted by the protonated complexes but, in contrast to the common depiction of the proton sponge behaviour, the ion influx does not cause swelling of the complex structure itself. However, PEI protonation leads to release of PEI while DNA remains tightly bound to the complex. Jointly, these findings shed light on the stability determining factors of DNA-polycation complexes, raise charge distribution as an important stability determining contributor, and indicate that the effectivity of PEI in gene delivery is likely to result from the freed PEI facilitating gene transfection.
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Affiliation(s)
- Hanne S Antila
- Aalto University School of Chemical Technology, Department of Chemistry, P.O. Box 16100, FI-00076, Aalto, Finland.
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245
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Naseri N, Valizadeh H, Zakeri-Milani P. Solid Lipid Nanoparticles and Nanostructured Lipid Carriers: Structure, Preparation and Application. Adv Pharm Bull 2015; 5:305-13. [PMID: 26504751 DOI: 10.15171/apb.2015.043] [Citation(s) in RCA: 499] [Impact Index Per Article: 55.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2015] [Revised: 06/15/2015] [Accepted: 06/19/2015] [Indexed: 11/09/2022] Open
Abstract
Lipid nanoparticles (LNPs) have attracted special interest during last few decades. Solid lipid nanoparticles (SLNs) and nanostructured lipid carriers (NLCs) are two major types of Lipid-based nanoparticles. SLNs were developed to overcome the limitations of other colloidal carriers, such as emulsions, liposomes and polymeric nanoparticles because they have advantages like good release profile and targeted drug delivery with excellent physical stability. In the next generation of the lipid nanoparticle, NLCs are modified SLNs which improve the stability and capacity loading. Three structural models of NLCs have been proposed. These LNPs have potential applications in drug delivery field, research, cosmetics, clinical medicine, etc. This article focuses on features, structure and innovation of LNPs and presents a wide discussion about preparation methods, advantages, disadvantages and applications of LNPs by focusing on SLNs and NLCs.
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Affiliation(s)
- Neda Naseri
- Student Research Committee and Faculty of Advanced Medical Sciences, Department of Medical Nanotechnology, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Hadi Valizadeh
- Liver and Gastrointestinal Diseases Research Center and Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Parvin Zakeri-Milani
- Drug Applied Research Center and Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran
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246
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Biophysical properties of cationic lipophosphoramidates: Vesicle morphology, bilayer hydration and dynamics. Colloids Surf B Biointerfaces 2015; 136:192-200. [PMID: 26398144 DOI: 10.1016/j.colsurfb.2015.09.012] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2015] [Revised: 08/10/2015] [Accepted: 09/06/2015] [Indexed: 02/04/2023]
Abstract
Cationic lipids are used to deliver genetic material to living cells. Their proper biophysical characterization is needed in order to design and control this process. In the present work we characterize some properties of recently synthetized cationic lipophosphoramidates. The studied compounds share the same structure of their hydrophobic backbone, but differ in their hydrophilic cationic headgroup, which is formed by a trimethylammonium, a trimethylarsonium or a dicationic moiety. Dynamic light scattering and cryo-transmission electron microscopy proves that the studied lipophosphoramidates create stable unilamellar vesicles. Fluorescence of polarity probe, Laurdan, analyzed using time-dependent fluorescence shift method (TDFS) and generalized polarization (GP) gives important information about the phase, hydration and dynamics of the lipophosphoramidate bilayers. While all of the compounds produced lipid bilayers that were sufficiently fluid for their potential application in gene therapy, their polarity/hydration and mobility was lower than for the standard cationic lipid - DOTAP. Mixing cationic lipophosphoramidates with DOPC helps to reduce this difference. The structure of the cationic headgroup has an important and complex influence on bilayer hydration and mobility. Both TDFS and GP methods are suitable for the characterization of cationic amphiphiles and can be used for screening of the newly synthesized compounds.
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247
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Ross KA, Brenza TM, Binnebose AM, Phanse Y, Kanthasamy AG, Gendelman HE, Salem AK, Bartholomay LC, Bellaire BH, Narasimhan B. Nano-enabled delivery of diverse payloads across complex biological barriers. J Control Release 2015; 219:548-559. [PMID: 26315817 DOI: 10.1016/j.jconrel.2015.08.039] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2015] [Revised: 08/18/2015] [Accepted: 08/20/2015] [Indexed: 01/12/2023]
Abstract
Complex biological barriers are major obstacles for preventing and treating disease. Nanocarriers are designed to overcome such obstacles by enhancing drug delivery through physiochemical barriers and improving therapeutic indices. This review critically examines both biological barriers and nanocarrier payloads for a variety of drug delivery applications. A spectrum of nanocarriers is discussed that have been successfully developed for improving tissue penetration for preventing or treating a range of infectious, inflammatory, and degenerative diseases.
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Affiliation(s)
- Kathleen A Ross
- Chemical and Biological Engineering, Iowa State University, 2114 Sweeney Hall, Ames 50011, USA
| | - Timothy M Brenza
- Chemical and Biological Engineering, Iowa State University, 2114 Sweeney Hall, Ames 50011, USA
| | - Andrea M Binnebose
- Veterinary Microbiology and Preventive Medicine, Iowa State University, 2180 Vet Med, Ames 50011, USA
| | - Yashdeep Phanse
- Pathobiological Sciences, University of Wisconsin-Madison, 1656 Linden Dr., Madison 53706, USA
| | | | - Howard E Gendelman
- Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center, 985880 Nebraska Medical Center, Omaha 68198, USA
| | - Aliasger K Salem
- Pharmaceutical Sciences and Experimental Therapeutics, University of Iowa, 115 S. Grand Avenue, Iowa City 52242, USA
| | - Lyric C Bartholomay
- Pathobiological Sciences, University of Wisconsin-Madison, 1656 Linden Dr., Madison 53706, USA
| | - Bryan H Bellaire
- Veterinary Microbiology and Preventive Medicine, Iowa State University, 2180 Vet Med, Ames 50011, USA
| | - Balaji Narasimhan
- Chemical and Biological Engineering, Iowa State University, 2114 Sweeney Hall, Ames 50011, USA.
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248
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Yan Y, Xue L, Miller JB, Zhou K, Kos P, Elkassih S, Liu L, Nagai A, Xiong H, Siegwart DJ. One-pot Synthesis of Functional Poly(amino ester sulfide)s and Utility in Delivering pDNA and siRNA. POLYMER 2015; 72:271-280. [PMID: 26726270 PMCID: PMC4695292 DOI: 10.1016/j.polymer.2015.02.020] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
The development of efficacious carriers is an important long-standing challenge in gene therapy. In the past few decades, tremendous progress has been made toward non-viral vectors for gene delivery including cationic lipids and polymers. However, there continues to be a need for clinically translatable polymer-based delivery carriers because they offer tunable degradation profiles and functional groups, diverse structures/morphologies, and scalability in preparation. Herein, we developed a library of 144 degradable polymers with varying amine and hydrophobic content via a facile method that involves thiobutyrolactone aminolysis and consequent thiol-(meth)acrylate or acrylamide addition in one-pot. The polymer platform was evaluated for pDNA and siRNA delivery to HeLa cells in vitro. Hydrophobically modified 5S, 2E1, 6CY1, 5CY2, and 2M1 grafted HEMATL polymers are capable of delivering pDNA depending on the chemical composition and the size of the polyplexes. Hydrophobically modified 5S and 2B grafted HEMATL and 5S grafted ATL polymers exhibit capability for siRNA delivery that approaches the efficacy of commercially available transfection reagents. Due to tunable functionality and scalable preparation, this synthetic approach may have broad applicability in the design of delivery materials for gene therapy.
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Affiliation(s)
- Yunfeng Yan
- University of Texas Southwestern Medical Center, Simmons Comprehensive Cancer Center, Department of Biochemistry, Dallas, Texas 75390, United States
| | - Lian Xue
- University of Texas Southwestern Medical Center, Simmons Comprehensive Cancer Center, Department of Biochemistry, Dallas, Texas 75390, United States
| | - Jason B. Miller
- University of Texas Southwestern Medical Center, Simmons Comprehensive Cancer Center, Department of Biochemistry, Dallas, Texas 75390, United States
| | - Kejin Zhou
- University of Texas Southwestern Medical Center, Simmons Comprehensive Cancer Center, Department of Biochemistry, Dallas, Texas 75390, United States
| | - Petra Kos
- University of Texas Southwestern Medical Center, Simmons Comprehensive Cancer Center, Department of Biochemistry, Dallas, Texas 75390, United States
| | - Sussana Elkassih
- University of Texas Southwestern Medical Center, Simmons Comprehensive Cancer Center, Department of Biochemistry, Dallas, Texas 75390, United States
| | - Li Liu
- University of Texas Southwestern Medical Center, Simmons Comprehensive Cancer Center, Department of Biochemistry, Dallas, Texas 75390, United States
| | - Atsushi Nagai
- University of Texas Southwestern Medical Center, Simmons Comprehensive Cancer Center, Department of Biochemistry, Dallas, Texas 75390, United States
| | - Hu Xiong
- University of Texas Southwestern Medical Center, Simmons Comprehensive Cancer Center, Department of Biochemistry, Dallas, Texas 75390, United States
| | - Daniel J. Siegwart
- University of Texas Southwestern Medical Center, Simmons Comprehensive Cancer Center, Department of Biochemistry, Dallas, Texas 75390, United States
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Lopes I, C. N. Oliveira A, P. Sárria M, P. Neves Silva J, Gonçalves O, Gomes AC, Real Oliveira MECD. Monoolein-based nanocarriers for enhanced folate receptor-mediated RNA delivery to cancer cells. J Liposome Res 2015; 26:199-210. [DOI: 10.3109/08982104.2015.1076463] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Affiliation(s)
- Ivo Lopes
- Department of Physics, University of Minho, Campus of Gualtar, Braga, Portugal and
- Department of Biology, University of Minho, Braga, Portugal
| | - Ana C. N. Oliveira
- Department of Physics, University of Minho, Campus of Gualtar, Braga, Portugal and
- Department of Biology, University of Minho, Braga, Portugal
| | | | - João P. Neves Silva
- Department of Physics, University of Minho, Campus of Gualtar, Braga, Portugal and
| | - Odete Gonçalves
- Department of Physics, University of Minho, Campus of Gualtar, Braga, Portugal and
- Department of Biology, University of Minho, Braga, Portugal
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Evaluation of improved PAMAM-G5 conjugates for gene delivery targeted to the transferrin receptor. Eur J Pharm Biopharm 2015; 94:116-22. [DOI: 10.1016/j.ejpb.2015.05.007] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2014] [Revised: 03/06/2015] [Accepted: 05/07/2015] [Indexed: 11/18/2022]
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