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Berger AG, DeLorenzo C, Vo C, Kaskow JA, Nabar N, Hammond PT. Poly(β-aminoester) Physicochemical Properties Govern the Delivery of siRNA from Electrostatically Assembled Coatings. Biomacromolecules 2024; 25:2934-2952. [PMID: 38687965 PMCID: PMC11117021 DOI: 10.1021/acs.biomac.4c00062] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/02/2024]
Abstract
Localized short interfering RNA (siRNA) therapy has the potential to drive high-specificity molecular-level treatment of a variety of disease states. Unfortunately, effective siRNA therapy suffers from several barriers to its intracellular delivery. Thus, drug delivery systems that package and control the release of therapeutic siRNAs are necessary to overcome these obstacles to clinical translation. Layer-by-layer (LbL) electrostatic assembly of thin film coatings containing siRNA and protonatable, hydrolyzable poly(β-aminoester) (PBAE) polymers is one such drug delivery strategy. However, the impact of PBAE physicochemical properties on the transfection efficacy of siRNA released from LbL thin film coatings has not been systematically characterized. In this study, we investigate the siRNA transfection efficacy of four structurally similar PBAEs in vitro. We demonstrate that small changes in structure yield large changes in physicochemical properties, such as hydrophobicity, pKa, and amine chemical structure, driving differences in the interactions between PBAEs and siRNA in polyplexes and in LbL thin film coatings for wound dressings. In our polymer set, Poly3 forms the most stable interactions with siRNA (Keff,w/w = 0.298) to slow release kinetics and enhance transfection of reporter cells in both colloidal and thin film coating approaches. This is due to its unique physiochemical properties: high hydrophobicity (clog P = 7.86), effective pKa closest to endosomal pH (pKa = 6.21), and high cooperativity in buffering (nhill = 7.2). These properties bestow Poly3 with enhanced endosomal buffering and escape properties. Taken together, this work elucidates the connections between small changes in polymer structure, emergent properties, and polyelectrolyte theory to better understand PBAE transfection efficacy.
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Affiliation(s)
- Adam G. Berger
- Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
- Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
- Institute for Soldier Nanotechnologies, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - Charles DeLorenzo
- Institute for Soldier Nanotechnologies, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - Chau Vo
- Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
- Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
- Institute for Soldier Nanotechnologies, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - Justin A. Kaskow
- Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - Namita Nabar
- Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
- Broad Institute of Harvard and MIT, Cambridge, MA, 02142, USA
| | - Paula T. Hammond
- Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
- Institute for Soldier Nanotechnologies, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
- Broad Institute of Harvard and MIT, Cambridge, MA, 02142, USA
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2
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Purification and Surface Modification of Chitosan-based Polyplexes Using Tangential Flow Filtration and Coating by Hyaluronic Acid. J Pharm Sci 2022; 111:2857-2866. [DOI: 10.1016/j.xphs.2022.05.021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2021] [Revised: 05/25/2022] [Accepted: 05/25/2022] [Indexed: 11/16/2022]
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3
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Microencapsulated Multifunctionalized Graphene Oxide Equipped with Chloroquine for Efficient and Sustained siRNA Delivery. BIOMED RESEARCH INTERNATIONAL 2022; 2022:5866361. [PMID: 35469347 PMCID: PMC9034959 DOI: 10.1155/2022/5866361] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/12/2021] [Accepted: 03/15/2022] [Indexed: 11/26/2022]
Abstract
A multifunctionalized graphene oxide (GO)-based carrier with conjugation of aminated-polyethylene glycol (PEG-diamine), octaarginine (R8), and folic acid (FA), which also contains chloroquine (CQ), a lysosomotropic agent, is introduced. The cellular uptake mechanisms and intracellular targeting of FA-functionalized nanocarriers are examined. The localized releases of CQ and siRNA intracellular delivery are evaluated. Microencapsulation of the nanocarrier complexed with genes in layer-by-layer coating of alginate microbeads is also investigated. The covalently coconjugated FA with PEG and R8 provides a stable formulation with increased cellular uptake compared to FA-free carrier. The CQ-equipped nanocarrier shows a 95% release of CQ at lysosomal pH. The localized release of the drug inside the lysosomes is verified which accelerates the cargo discharge into cytoplasm.
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4
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Hango CR, Davis HC, Uddin EA, Minter LM, Tew GN. Increased block copolymer length improves intracellular availability of protein cargo. Polym Chem 2022. [DOI: 10.1039/d2py00017b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Amphiphilic protein transduction domain mimics (PTDMs) of various lengths were used for protein delivery in Jurkat T cells. Although longer PTDMs facilitated greater cargo internalization, shorter PTDMs yielded greater cargo activity.
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Affiliation(s)
- Christopher R. Hango
- Department of Polymer Science & Engineering, University of Massachusetts, Amherst, Amherst, Massachusetts 01003, USA
| | - Hazel C. Davis
- Department of Polymer Science & Engineering, University of Massachusetts, Amherst, Amherst, Massachusetts 01003, USA
| | - Esha A. Uddin
- Department of Polymer Science & Engineering, University of Massachusetts, Amherst, Amherst, Massachusetts 01003, USA
| | - Lisa M. Minter
- Molecular and Cellular Biology Program, University of Massachusetts, Amherst, Amherst, Massachusetts 01003, USA
- Department of Veterinary & Animal Sciences, University of Massachusetts, Amherst, Amherst, Massachusetts 01003, USA
| | - Gregory N. Tew
- Department of Polymer Science & Engineering, University of Massachusetts, Amherst, Amherst, Massachusetts 01003, USA
- Molecular and Cellular Biology Program, University of Massachusetts, Amherst, Amherst, Massachusetts 01003, USA
- Department of Veterinary & Animal Sciences, University of Massachusetts, Amherst, Amherst, Massachusetts 01003, USA
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5
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Aibani N, Rai R, Patel P, Cuddihy G, Wasan EK. Chitosan Nanoparticles at the Biological Interface: Implications for Drug Delivery. Pharmaceutics 2021; 13:1686. [PMID: 34683979 PMCID: PMC8540112 DOI: 10.3390/pharmaceutics13101686] [Citation(s) in RCA: 91] [Impact Index Per Article: 30.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2021] [Revised: 09/24/2021] [Accepted: 10/07/2021] [Indexed: 12/13/2022] Open
Abstract
The unique properties of chitosan make it a useful choice for various nanoparticulate drug delivery applications. Although chitosan is biocompatible and enables cellular uptake, its interactions at cellular and systemic levels need to be studied in more depth. This review focuses on the various physical and chemical properties of chitosan that affect its performance in biological systems. We aim to analyze recent research studying interactions of chitosan nanoparticles (NPs) upon their cellular uptake and their journey through the various compartments of the cell. The positive charge of chitosan enables it to efficiently attach to cells, increasing the probability of cellular uptake. Chitosan NPs are taken up by cells via different pathways and escape endosomal degradation due to the proton sponge effect. Furthermore, we have reviewed the interaction of chitosan NPs upon in vivo administration. Chitosan NPs are immediately surrounded by a serum protein corona in systemic circulation upon intravenous administration, and their biodistribution is mainly to the liver and spleen indicating RES uptake. However, the evasion of RES system as well as the targeting ability and bioavailability of chitosan NPs can be improved by utilizing specific routes of administration and covalent modifications of surface properties. Ongoing clinical trials of chitosan formulations for therapeutic applications are paving the way for the introduction of chitosan into the pharmaceutical market and for their toxicological evaluation. Chitosan provides specific biophysical properties for effective and tunable cellular uptake and systemic delivery for a wide range of applications.
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Affiliation(s)
| | | | | | | | - Ellen K. Wasan
- College of Pharmacy and Nutrition, University of Saskatchewan, 107 Wiggins Rd, Saskatoon, SK S7N 5E5, Canada; (N.A.); (R.R.); (P.P.); (G.C.)
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6
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Liu HW, Hu Y, Ren Y, Nam H, Santos JL, Ng S, Gong L, Brummet M, Carrington CA, Ullman CG, Pomper MG, Minn I, Mao HQ. Scalable Purification of Plasmid DNA Nanoparticles by Tangential Flow Filtration for Systemic Delivery. ACS APPLIED MATERIALS & INTERFACES 2021; 13:30326-30336. [PMID: 34162211 PMCID: PMC9701136 DOI: 10.1021/acsami.1c05750] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Plasmid DNA (pDNA) nanoparticles synthesized by complexation with linear polyethylenimine (lPEI) are one of the most effective non-viral gene delivery vehicles. However, the lack of scalable and reproducible production methods and the high toxicity have hindered their clinical translation. Previously, we have developed a scalable flash nanocomplexation (FNC) technique to formulate pDNA/lPEI nanoparticles using a continuous flow process. Here, we report a tangential flow filtration (TFF)-based scalable purification method to reduce the uncomplexed lPEI concentration in the nanoparticle formulation and improve its biocompatibility. The optimized procedures achieved a 60% reduction of the uncomplexed lPEI with preservation of the nanoparticle size and morphology. Both in vitro and in vivo studies showed that the purified nanoparticles significantly reduced toxicity while maintaining transfection efficiency. TFF also allows for gradual exchange of solvents to isotonic solutions and further concentrating the nanoparticles for injection. Combining FNC production and TFF purification, we validated the purified pDNA/lPEI nanoparticles for future clinical translation of this gene nanomedicine.
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Affiliation(s)
- Heng-Wen Liu
- Department of Materials Science and Engineering, Johns Hopkins University, Baltimore, MD 21218, USA
- Institute for NanoBioTechnology, Johns Hopkins University, Baltimore, MD 21218, USA
| | - Yizong Hu
- Institute for NanoBioTechnology, Johns Hopkins University, Baltimore, MD 21218, USA
- Department of Biomedical Engineering, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA
| | - Yong Ren
- Department of Materials Science and Engineering, Johns Hopkins University, Baltimore, MD 21218, USA
- Institute for NanoBioTechnology, Johns Hopkins University, Baltimore, MD 21218, USA
| | - Hwanhee Nam
- Institute for NanoBioTechnology, Johns Hopkins University, Baltimore, MD 21218, USA
- Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA
| | - Jose Luis Santos
- Department of Materials Science and Engineering, Johns Hopkins University, Baltimore, MD 21218, USA
- Institute for NanoBioTechnology, Johns Hopkins University, Baltimore, MD 21218, USA
| | - Shirley Ng
- Department of Materials Science and Engineering, Johns Hopkins University, Baltimore, MD 21218, USA
- Institute for NanoBioTechnology, Johns Hopkins University, Baltimore, MD 21218, USA
| | - Like Gong
- Department of Materials Science and Engineering, Johns Hopkins University, Baltimore, MD 21218, USA
- Institute for NanoBioTechnology, Johns Hopkins University, Baltimore, MD 21218, USA
| | - Mary Brummet
- Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA
| | | | | | - Martin G. Pomper
- Institute for NanoBioTechnology, Johns Hopkins University, Baltimore, MD 21218, USA
- Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA
| | - Il Minn
- Institute for NanoBioTechnology, Johns Hopkins University, Baltimore, MD 21218, USA
- Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA
| | - Hai-Quan Mao
- Department of Materials Science and Engineering, Johns Hopkins University, Baltimore, MD 21218, USA
- Institute for NanoBioTechnology, Johns Hopkins University, Baltimore, MD 21218, USA
- Department of Biomedical Engineering, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA
- Translational Tissue Engineering Center, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA
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7
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Zhang Z, Qiu N, Wu S, Liu X, Zhou Z, Tang J, Liu Y, Zhou R, Shen Y. Dose-Independent Transfection of Hydrophobized Polyplexes. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2021; 33:e2102219. [PMID: 33991017 DOI: 10.1002/adma.202102219] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/22/2021] [Revised: 04/09/2021] [Indexed: 05/14/2023]
Abstract
Cationic polymers dynamically complex DNA into complexes (polyplexes). So, upon dilution, polyplexes easily dissociate and lose transfection ability, limiting their in vivo systemic gene delivery. Herein, it is found that polyplex's stability and endocytosis pathway determine its transfection dose-dependence. The polyplexes of hydrophilic polycations have dose-dependent integrity and lysosome-trafficking endocytosis; at low doses, most of these polyplexes dissociate, and the remaining few are internalized and trapped in lysosomes, abolishing their transfection ability. In contrast, the polyplexes of the polycations with optimal hydrophobicity remain integrated even at low concentrations and enter cells via macropinocytosis directly into the cytosol evading lysosomes, so each polyplex can accomplish its infection process, leading to dose-independent DNA transfection like viral vectors. Furthermore, the tuned hydrophobicity balancing the affinity of anionic poly(γ-glutamic acid) (γ-PGA) to the polyplex surface enables γ-PGA to stick on the polyplex surface as a shielding layer but peel off on the cell membrane to release the naked polyplexes for dose-independent transfection. These findings may provide guidelines for developing polyplexes that mimick a viral vector's dose-independent transfection for effective in vivo gene delivery.
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Affiliation(s)
- Zhen Zhang
- Zhejiang Key Laboratory of Smart Biomaterials and Key Laboratory of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Nasha Qiu
- Zhejiang Key Laboratory of Smart Biomaterials and Key Laboratory of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Shuling Wu
- Department of Respiratory, The First People's Hospital of Xiaoshan, Hangzhou, 311200, China
| | - Xin Liu
- Department of Orthopaedic Surgery, Sir Run Run Shaw Hospital, Medical College of Zhejiang University, Hangzhou, 310016, China
| | - Zhuxian Zhou
- Zhejiang Key Laboratory of Smart Biomaterials and Key Laboratory of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310027, China
- Hangzhou Global Scientific and Technological Innovation Center, Hangzhou, 311215, China
| | - Jianbin Tang
- Zhejiang Key Laboratory of Smart Biomaterials and Key Laboratory of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Yanpeng Liu
- Zhejiang Key Laboratory of Smart Biomaterials and Key Laboratory of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310027, China
- Hangzhou Global Scientific and Technological Innovation Center, Hangzhou, 311215, China
| | - Ruhong Zhou
- Institute of Quantitative Biology, College of Life Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Youqing Shen
- Zhejiang Key Laboratory of Smart Biomaterials and Key Laboratory of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310027, China
- Hangzhou Global Scientific and Technological Innovation Center, Hangzhou, 311215, China
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8
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Kumar R, Santa Chalarca CF, Bockman MR, Bruggen CV, Grimme CJ, Dalal RJ, Hanson MG, Hexum JK, Reineke TM. Polymeric Delivery of Therapeutic Nucleic Acids. Chem Rev 2021; 121:11527-11652. [PMID: 33939409 DOI: 10.1021/acs.chemrev.0c00997] [Citation(s) in RCA: 149] [Impact Index Per Article: 49.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The advent of genome editing has transformed the therapeutic landscape for several debilitating diseases, and the clinical outlook for gene therapeutics has never been more promising. The therapeutic potential of nucleic acids has been limited by a reliance on engineered viral vectors for delivery. Chemically defined polymers can remediate technological, regulatory, and clinical challenges associated with viral modes of gene delivery. Because of their scalability, versatility, and exquisite tunability, polymers are ideal biomaterial platforms for delivering nucleic acid payloads efficiently while minimizing immune response and cellular toxicity. While polymeric gene delivery has progressed significantly in the past four decades, clinical translation of polymeric vehicles faces several formidable challenges. The aim of our Account is to illustrate diverse concepts in designing polymeric vectors towards meeting therapeutic goals of in vivo and ex vivo gene therapy. Here, we highlight several classes of polymers employed in gene delivery and summarize the recent work on understanding the contributions of chemical and architectural design parameters. We touch upon characterization methods used to visualize and understand events transpiring at the interfaces between polymer, nucleic acids, and the physiological environment. We conclude that interdisciplinary approaches and methodologies motivated by fundamental questions are key to designing high-performing polymeric vehicles for gene therapy.
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Affiliation(s)
- Ramya Kumar
- Department of Chemistry, University of Minnesota, Minneapolis, Minnesota 55455, United States
| | | | - Matthew R Bockman
- Department of Chemistry, University of Minnesota, Minneapolis, Minnesota 55455, United States
| | - Craig Van Bruggen
- Department of Chemistry, University of Minnesota, Minneapolis, Minnesota 55455, United States
| | - Christian J Grimme
- Department of Chemical Engineering and Materials Science, University of Minnesota, Minneapolis, Minnesota 55455, United States
| | - Rishad J Dalal
- Department of Chemistry, University of Minnesota, Minneapolis, Minnesota 55455, United States
| | - Mckenna G Hanson
- Department of Chemistry, University of Minnesota, Minneapolis, Minnesota 55455, United States
| | - Joseph K Hexum
- Department of Chemistry, University of Minnesota, Minneapolis, Minnesota 55455, United States
| | - Theresa M Reineke
- Department of Chemistry, University of Minnesota, Minneapolis, Minnesota 55455, United States
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Liu DE, Yan X, An J, Ma J, Gao H. Construction of traceable cucurbit[7]uril-based virus-mimicking quaternary complexes with aggregation-induced emission for efficient gene transfection. J Mater Chem B 2020; 8:7475-7482. [PMID: 32667015 DOI: 10.1039/d0tb01180k] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Construction of an efficient cationic gene delivery system with low cytotoxicity, high transfection efficacy, as well as gene tracking function remains a major challenge in gene therapy. Fabrication of simple and reversible nanocomplexes based on host-guest interaction provides an opportunity to construct stimuli-responsive intelligent supramolecular systems. Inspired by the hierarchical structure of viruses, a novel virus-mimicking PG/CB/TPE/DNA gene delivery system is developed via a multistep noncovalent self-assembly process between pDNA and the preformed PG/CB/TPE complexes based on the host-guest interaction between cucurbit[7]uril (CB[7]) and the protonated diamine group in the poly(glycidyl methacrylate)s derivative (PG), as well as the electrostatic interaction between para-carboxyl functionalized tetraphenylethylene (TPE) and cationic PG. The developed efficient multifunctional gene delivery system exhibits stimuli responsive characteristics and aggregation-induced emission phenomena, thereby enabling gene delivery pH responsiveness and traceability. Moreover, the introduction of TPE and CB[7] endows the self-assembled PG/CB/TPE/DNA complexes with virus-mimicking architecture and properties such as low cytotoxicity, high stability, excellent endosomal escape, and efficient transfection, which are expected to be used as a promising gene delivery system.
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Affiliation(s)
- De-E Liu
- School of Material Science and Engineering, School of Chemistry and Chemical Engineering, Tianjin Key Laboratory of Drug Targeting and Bioimaging, Tianjin Enterprise Key Laboratory for Application Research of Hyaluronic Acid, Tianjin University of Technology, Tianjin 300384, P. R. China.
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10
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Polyplexes for gene and nucleic acid delivery: Progress and bottlenecks. Eur J Pharm Sci 2020; 150:105358. [PMID: 32360232 DOI: 10.1016/j.ejps.2020.105358] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2019] [Revised: 04/21/2020] [Accepted: 04/22/2020] [Indexed: 12/12/2022]
Abstract
Gene and nucleic acid delivery constitute a huge biological challenge and several attempts have been made by research laboratories to address this issue. Cationic polymers and cationic lipids (positively charged carriers) can be utilized for the transport of these biomolecules. Polyplexes (PPs) are interpolyelectrolyte complexes which are spontaneously formed through the electrostatic condensation between nucleic acid and a cationic polymer. PPs are capable of high-density payload condensation leading to cell internalization and subsequent protection from enzymatic degradation. Most cationic polymers can cross extracellular barriers, but it is more challenging to overcome intracellular barriers (efficient disassembly and endosomal escape). In this review, the use of PPs for gene and nucleic acid delivery is discussed.
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Yin D, Wen H, Wu G, Li S, Liu C, Lu H, Liang D. PEGylated gene carriers in serum under shear flow. SOFT MATTER 2020; 16:2301-2310. [PMID: 32052004 DOI: 10.1039/c9sm02397f] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The behaviour of drug/gene carriers in the blood stream under shear is still a puzzle. In this work, using the complexes formed by 21 bp DNA and poly(ethylene glycol)-b-poly(l-lysine) (PEG-PLL) of varying PEG lengths, we studied the dynamic behaviour of the complexes in the presence of fetal bovine serum (FBS) and under flow at different shear rates, a condition mimicking the internal physical environment of blood vessels. The PEG5k-PLL/DNA complex possesses a dense DNA/PLL core and a loose PEG5k protecting layer. The PEGylated DNA complexes exhibit multiple responses to external shear in the presence of FBS. The loose PEG5k layer is firstly disturbed at a shear rate below 30 s-1. The exposure of the charged core to the environment results in a secondary aggregation of the complex with FBS. The size of the aggregate is limited to a certain range as the shear rate increases to 50 s-1. The dense DNA/PLL core starts to withstand the shear force as the shear rate reaches 500 s-1. The reorganization of the core to accommodate more serum molecules leads to tertiary aggregation of the complexes. If PEG cannot form a valid layer around the complex, as in PEG2k-PLL/DNA, the complex forms an aggregate even without shear, and the first shear dependent region is missing. If the PEG layer is too stable around the complex, as in PEG10k-PLL/DNA, no tertiary aggregation occurs. The mechanism of shear on the behaviour of delivery particles in serum helps to design gene carriers with high efficacy.
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Affiliation(s)
- Dongxiao Yin
- Beijing National Laboratory for Molecular Sciences and the Key Laboratory of Polymer Chemistry and Physics of Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China.
| | - Hao Wen
- Beijing National Laboratory for Molecular Sciences and the Key Laboratory of Polymer Chemistry and Physics of Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China.
| | - Guangqi Wu
- Beijing National Laboratory for Molecular Sciences and the Key Laboratory of Polymer Chemistry and Physics of Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China.
| | - Shaolu Li
- Beijing National Laboratory for Molecular Sciences and the Key Laboratory of Polymer Chemistry and Physics of Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China.
| | - Chenyang Liu
- Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Hua Lu
- Beijing National Laboratory for Molecular Sciences and the Key Laboratory of Polymer Chemistry and Physics of Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China.
| | - Dehai Liang
- Beijing National Laboratory for Molecular Sciences and the Key Laboratory of Polymer Chemistry and Physics of Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China.
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12
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Wu CY, Huang RY, Liao EC, Lin YC, Ho YJ, Chang CW, Chan HL, Huang YZ, Hsieh TH, Fan CH, Yeh CK. A preliminary study of Parkinson's gene therapy via sono-magnetic sensing gene vector for conquering extra/intracellular barriers in mice. Brain Stimul 2020; 13:786-799. [PMID: 32289709 DOI: 10.1016/j.brs.2020.02.024] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2019] [Revised: 01/31/2020] [Accepted: 02/19/2020] [Indexed: 01/08/2023] Open
Abstract
BACKGROUND Non-virus genetic treatment for Parkinson's disease (PD) via plasmid glial cell-line derived neurotrophic factor (pGDNF) has shown potential for repairing damaged dopaminergic neurons. However, development of this gene therapy is largely hampered by the insufficient transfection efficiency as a result of the cell membrane, lysosome, and cytoskeleton meshwork. METHODS In this study, we propose the use of polyethylenimine (PEI)-superparamagnetic iron oxide-plasmid DNA (pDNA)-loaded microbubbles (PSp-MBs) in conjunction with focused ultrasound (FUS) and two-step magnetic navigation to provide cavitation, proton sponge effect and magnetic effects to increase the efficiency of gene delivery. RESULTS The gene transfection rate in the proposed system was 2.2-fold higher than that of the commercial agent (TransIT®-LT1). The transfection rate could be boosted ∼11%, ∼10%, and 6% by cavitation-magnetic hybrid enhanced cell membrane permeabilization, proton sponge effect, and magnetic-assisted cytoskeleton-reorganization, respectively. In vivo data suggested that effective gene delivery with this system results in a 3.2-fold increase in recovery of dopaminergic neurons and a 3.9-fold improvement in the motor behavior when compared to untreated genetic PD mice. CONCLUSIONS We proposed that this novel FUS-magnetic hybrid gene delivery platform could be integrated with a variety of therapeutic genes for treating neurodegenerative diseases in the future.
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Affiliation(s)
- Chun-Yao Wu
- Department of Biomedical Engineering and Environmental Sciences, National Tsing Hua University, Hsinchu, Taiwan
| | - Rih-Yang Huang
- Department of Biomedical Engineering and Environmental Sciences, National Tsing Hua University, Hsinchu, Taiwan
| | - En-Chi Liao
- Department of Medical Science, Institute of Bioinformatics and Structural Biology, National Tsing Hua University, Hsinchu, Taiwan
| | - Yu-Chun Lin
- Institute of Molecular Medicine, National Tsing Hua University, Hsinchu, Taiwan; Department of Molecular Science, National Tsing Hua University, Hsinchu, Taiwan
| | - Yi-Ju Ho
- Department of Biomedical Engineering and Environmental Sciences, National Tsing Hua University, Hsinchu, Taiwan
| | - Chien-Wen Chang
- Department of Biomedical Engineering and Environmental Sciences, National Tsing Hua University, Hsinchu, Taiwan
| | - Hong-Lin Chan
- Department of Medical Science, Institute of Bioinformatics and Structural Biology, National Tsing Hua University, Hsinchu, Taiwan
| | - Ying-Zu Huang
- Neuroscience Research Center, Healthy Aging Research Center and Department of Neurology, Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Taipei, Taiwan
| | - Tsung-Hsun Hsieh
- School of Physical Therapy & Neuroscience Research Center, Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Taipei, Taiwan
| | - Ching-Hsiang Fan
- Department of Biomedical Engineering and Environmental Sciences, National Tsing Hua University, Hsinchu, Taiwan.
| | - Chih-Kuang Yeh
- Department of Biomedical Engineering and Environmental Sciences, National Tsing Hua University, Hsinchu, Taiwan; Institute of Nuclear Engineering and Science, National Tsing Hua University, Hsinchu, Taiwan.
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13
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Soliman OY, Alameh MG, De Cresenzo G, Buschmann MD, Lavertu M. Efficiency of Chitosan/Hyaluronan-Based mRNA Delivery Systems In Vitro: Influence of Composition and Structure. J Pharm Sci 2019; 109:1581-1593. [PMID: 31891675 DOI: 10.1016/j.xphs.2019.12.020] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2019] [Revised: 12/22/2019] [Accepted: 12/23/2019] [Indexed: 12/25/2022]
Abstract
Messenger RNA (mRNA)-containing nanoparticles were produced by electrostatic complexation with a library of pharmaceutical grade chitosans with different degrees of deacetylation and hyaluronic acids (HAs) (native vs. sulfated). Polymer length (Mn), HA degree of sulfation (DS), and amine to phosphate to carboxyl + sulfate (from HA) ratio (N:P:C) were controlled. In vitro transfections were performed in the presence/absence of trehalose and at different pH. Particle size and ζ-potential were correlated with transfection efficiency. Polymer length and charge densities (degree of deacetylation, degree of sulfation) of both HA and chitosan had a direct influence on transfection efficiency through modulation of avidity to mRNA. N:P:C ratio, trehalose, mixing concentration, and nucleic acid dose influenced transfection efficiency with optimized formulations reaching ∼60%-65% transfection efficiency relative to commercially available lipid control with no apparent toxicity for transfection at slightly acidic pH 6.5.
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Affiliation(s)
| | - Mohamad Gabriel Alameh
- Infectious Disease Division, Department of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania 19104
| | - Gregory De Cresenzo
- Institute of Biomedical Engineering, Polytechnique Montréal, Montreal, Quebec, Canada; Department of Chemical Engineering, Polytechnique Montréal, Montreal, Quebec, Canada
| | - Michael D Buschmann
- Department of Bioengineering, Volgenau School of Engineering, George Mason University, Fairfax, Virginia 22030
| | - Marc Lavertu
- Institute of Biomedical Engineering, Polytechnique Montréal, Montreal, Quebec, Canada; Department of Chemical Engineering, Polytechnique Montréal, Montreal, Quebec, Canada.
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14
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Jackson MA, Bedingfield SK, Yu F, Stokan ME, Miles RE, Curvino EJ, Hoogenboezem EN, Bonami RH, Patel SS, Kendall PL, Giorgio TD, Duvall CL. Dual carrier-cargo hydrophobization and charge ratio optimization improve the systemic circulation and safety of zwitterionic nano-polyplexes. Biomaterials 2019; 192:245-259. [PMID: 30458360 PMCID: PMC6534819 DOI: 10.1016/j.biomaterials.2018.11.010] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2018] [Revised: 11/08/2018] [Accepted: 11/09/2018] [Indexed: 12/27/2022]
Abstract
While polymeric nano-formulations for RNAi therapeutics hold great promise for molecularly-targeted, personalized medicine, they possess significant systemic delivery challenges including rapid clearance from circulation and the potential for carrier-associated toxicity due to cationic polymer or lipid components. Herein, we evaluated the in vivo pharmacokinetic and safety impact of often-overlooked formulation parameters, including the ratio of carrier polymer to cargo siRNA and hydrophobic siRNA modification in combination with hydrophobic polymer components (dual hydrophobization). For these studies, we used nano-polyplexes (NPs) with well-shielded, zwitterionic coronas, resulting in various NP formulations of equivalent hydrodynamic size and neutral surface charge regardless of charge ratio. Doubling nano-polyplex charge ratio from 10 to 20 increased circulation half-life five-fold and pharmacokinetic area under the curve four-fold, but was also associated with increased liver enzymes, a marker of hepatic damage. Dual hydrophobization achieved by formulating NPs with palmitic acid-modified siRNA (siPA-NPs) both reduced the amount of carrier polymer required to achieve optimal pharmacokinetic profiles and abrogated liver toxicities. We also show that optimized zwitterionic siPA-NPs are well-tolerated upon long-term, repeated administration in mice and exhibit greater than two-fold increased uptake in orthotopic MDA-MB-231 xenografts compared to commercial transfection reagent, in vivo-jetPEI®. These data suggest that charge ratio optimization has important in vivo implications and that dual hydrophobization strategies can be used to maximize both NP circulation time and safety.
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Affiliation(s)
- Meredith A Jackson
- Department of Biomedical Engineering, Vanderbilt University, Nashville, TN, USA
| | - Sean K Bedingfield
- Department of Biomedical Engineering, Vanderbilt University, Nashville, TN, USA
| | - Fang Yu
- Department of Biomedical Engineering, Vanderbilt University, Nashville, TN, USA
| | - Mitchell E Stokan
- Department of Biomedical Engineering, Vanderbilt University, Nashville, TN, USA
| | - Rachel E Miles
- Department of Biomedical Engineering, Vanderbilt University, Nashville, TN, USA
| | - Elizabeth J Curvino
- Department of Biomedical Engineering, Vanderbilt University, Nashville, TN, USA
| | - Ella N Hoogenboezem
- Department of Biomedical Engineering, Vanderbilt University, Nashville, TN, USA
| | - Rachel H Bonami
- Department of Medicine, Division of Rheumatology and Immunology, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Shrusti S Patel
- Department of Biomedical Engineering, Vanderbilt University, Nashville, TN, USA
| | - Peggy L Kendall
- Department of Medicine, Division of Allergy, Pulmonary, and Critical Care, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Todd D Giorgio
- Department of Biomedical Engineering, Vanderbilt University, Nashville, TN, USA
| | - Craig L Duvall
- Department of Biomedical Engineering, Vanderbilt University, Nashville, TN, USA.
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15
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Bravo-Anaya LM, Fernández-Solís KG, Rosselgong J, Nano-Rodríguez JLE, Carvajal F, Rinaudo M. Chitosan-DNA polyelectrolyte complex: Influence of chitosan characteristics and mechanism of complex formation. Int J Biol Macromol 2019; 126:1037-1049. [PMID: 30615969 DOI: 10.1016/j.ijbiomac.2019.01.008] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2018] [Revised: 01/02/2019] [Accepted: 01/02/2019] [Indexed: 01/30/2023]
Abstract
Polyelectrolyte complexes formed between DNA and chitosan present different and interesting physicochemical properties combined with high biocompatibility; they are very useful for biomedical applications. DNA in its double helical structure is a semi-rigid polyelectrolyte chain. Chitosan, an abundant polysaccharide in nature, is considered as one of the most attractive vectors due to its biocompatibility and biodegradability. Here we study chitosan/DNA polyelectrolyte complex formation mechanism and the key factors of their stability. Compaction process of DNA with chitosan was monitored in terms of the ζ-potential and hydrodynamic radius variation as a function of charge ratios between chitosan and DNA. The influence of chitosan degree of acetylation (DA) and its molecular weight on the stoichiometry of chitosan/DNA complexes characteristics was also studied. It is shown that the isoelectric point of chitosan/DNA complexes, as well as their stability, is directly related to the degree of protonation of chitosan (depending on pH), to the DA and to the external salt concentration. It is demonstrated that DNA compaction process corresponds to an all or nothing like-process. Finally, since an important factor in cell travelling is the buffering effect of the vector used, we demonstrated the essential role of free chitosan on the proton-sponge effect.
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Affiliation(s)
- Lourdes Mónica Bravo-Anaya
- Universidad de Guadalajara, Departamento de Ingeniería Química, Blvd. M. García Barragán #1451, 44430 Guadalajara, Jalisco, Mexico; University of Bordeaux/Bordeaux INP, ENSCBP and CNRS, Laboratoire de Chimie des Polymères Organiques (UMR5629), 16 avenue Pey-Berland, Pessac 33607, France.
| | - Karla Gricelda Fernández-Solís
- Universidad de Guadalajara, Departamento de Ingeniería Química, Blvd. M. García Barragán #1451, 44430 Guadalajara, Jalisco, Mexico; Centro Universitario UTEG, Departamento de Investigación, Héroes Ferrocarrileros #1325, Guadalajara, Jalisco 44460, Mexico
| | - Julien Rosselgong
- University of Bordeaux/Bordeaux INP, ENSCBP and CNRS, Laboratoire de Chimie des Polymères Organiques (UMR5629), 16 avenue Pey-Berland, Pessac 33607, France
| | - Jesrael Luz Elena Nano-Rodríguez
- Universidad de Guadalajara, Departamento de Ingeniería Química, Blvd. M. García Barragán #1451, 44430 Guadalajara, Jalisco, Mexico; Centro Universitario UTEG, Departamento de Investigación, Héroes Ferrocarrileros #1325, Guadalajara, Jalisco 44460, Mexico
| | - Francisco Carvajal
- CUTonalá, Departamento de Ingenierías, Universidad de Guadalajara, Nuevo Periférico # 555 Ejido San José Tatepozco, 45425, Jalisco, Mexico
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16
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Hu Y, Wang H, Song H, Young M, Fan Y, Xu FJ, Qu X, Lei X, Liu Y, Cheng G. Peptide-grafted dextran vectors for efficient and high-loading gene delivery. Biomater Sci 2019; 7:1543-1553. [DOI: 10.1039/c8bm01341a] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Among various polymeric gene delivery systems, peptide-based vectors demonstrate great potential owing to their unique structure and properties, including flexibility; however, there is insufficient molecular understanding of the role and properties of amino acids as building blocks in gene delivery.
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Affiliation(s)
- Yang Hu
- State Key Laboratory of Chemical Resource Engineering
- Beijing Laboratory of Biomedical Materials
- Beijing University of Chemical Technology
- Beijing 100029
- China
| | - Huifeng Wang
- Department of Chemical Engineering
- University of Illinois at Chicago
- Chicago
- USA
| | - Haiqing Song
- Department of Chemical Engineering
- University of Illinois at Chicago
- Chicago
- USA
| | - Megan Young
- Department of Chemical Engineering
- University of Illinois at Chicago
- Chicago
- USA
| | - Yaqian Fan
- State Key Laboratory of Chemical Resource Engineering
- Beijing Laboratory of Biomedical Materials
- Beijing University of Chemical Technology
- Beijing 100029
- China
| | - Fu-Jian Xu
- State Key Laboratory of Chemical Resource Engineering
- Beijing Laboratory of Biomedical Materials
- Beijing University of Chemical Technology
- Beijing 100029
- China
| | - Xinjian Qu
- Department of Chemical Engineering
- University of Illinois at Chicago
- Chicago
- USA
| | - Xia Lei
- Department of Chemical and Biomolecular Engineering
- University of Akron
- Akron
- USA
| | - Ying Liu
- Department of Chemical Engineering
- University of Illinois at Chicago
- Chicago
- USA
| | - Gang Cheng
- Department of Chemical Engineering
- University of Illinois at Chicago
- Chicago
- USA
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17
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Redox-responsive polymer inhibits macrophages uptake for effective intracellular gene delivery and enhanced cancer therapy. Colloids Surf B Biointerfaces 2018; 175:392-402. [PMID: 30554018 DOI: 10.1016/j.colsurfb.2018.12.016] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2018] [Revised: 11/09/2018] [Accepted: 12/07/2018] [Indexed: 12/11/2022]
Abstract
The development of advanced gene delivery carriers with stimuli-responsive release manner for tumor therapeutics is desirable, since they can exclusively release the therapeutic gene via their structural changes in response to the specific stimuli of the target site. Moreover, interactions between macrophages and drug delivery systems (DDSs) seriously impair the treatment efficiency of DDSs, thus macrophages uptake inhibition would to some extent improve the intracellular uptake of DDSs in tumor cells. Herein, a PEGylated redox-responsive gene delivery system was developed for effective cancer therapy. PEG modified glycolipid-like polymer (P-CSSO) was electrostatic interacted with p53 to form P-CSSO/p53 complexes, which exhibited an enhanced redox sensitivity in that the disulfide bond was degraded and the rate the plasmid released from P-CSSO was 2.29-fold that of nonresponsive platform (P-CSO-SA) in 10 mM levels of glutathione (GSH). PEGylation could significantly weaken macrophages uptake, while enhance the accumulation of P-CSSO in tumor cells both in vitro and in vivo. Compared with nonresponsive complexes (P-CSO-SA/p53) (59.2%) and Lipofectamine™ 2000/p53 complexes (52.0%), the tumor inhibition rate of P-CSSO/p53 complexes (77.1%) significantly increased, which was higher than CSSO/p53 complexes (69.9%). The present study indicates that tumor microenvironment sensitive and macrophages uptake suppressive P-CSSO/p53 is a powerful in vivo gene delivery system for enhanced anticancer therapy.
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18
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Liu D, An J, Pang C, Yan X, Li W, Ma J, Gao H. Construction of Bovine Serum Albumin/AIE‐Based Quaternary Complexes for Efficient Gene Transfection. Macromol Biosci 2018; 19:e1800359. [DOI: 10.1002/mabi.201800359] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2018] [Revised: 10/12/2018] [Indexed: 12/28/2022]
Affiliation(s)
- De‐E Liu
- School of Material Science and EngineeringSchool of Chemistry and Chemical EngineeringTianjin Key Laboratory of Organic Solar Cells and Photochemical ConversionTianjin University of Technology Tianjin 300384 P. R. China
| | - Jinxia An
- School of Material Science and EngineeringSchool of Chemistry and Chemical EngineeringTianjin Key Laboratory of Organic Solar Cells and Photochemical ConversionTianjin University of Technology Tianjin 300384 P. R. China
| | - Chengcai Pang
- School of Material Science and EngineeringSchool of Chemistry and Chemical EngineeringTianjin Key Laboratory of Organic Solar Cells and Photochemical ConversionTianjin University of Technology Tianjin 300384 P. R. China
| | - Xiangjie Yan
- School of Material Science and EngineeringSchool of Chemistry and Chemical EngineeringTianjin Key Laboratory of Organic Solar Cells and Photochemical ConversionTianjin University of Technology Tianjin 300384 P. R. China
| | - Wei Li
- School of Material Science and EngineeringSchool of Chemistry and Chemical EngineeringTianjin Key Laboratory of Organic Solar Cells and Photochemical ConversionTianjin University of Technology Tianjin 300384 P. R. China
| | - Jianbiao Ma
- School of Material Science and EngineeringSchool of Chemistry and Chemical EngineeringTianjin Key Laboratory of Organic Solar Cells and Photochemical ConversionTianjin University of Technology Tianjin 300384 P. R. China
| | - Hui Gao
- School of Material Science and EngineeringSchool of Chemistry and Chemical EngineeringTianjin Key Laboratory of Organic Solar Cells and Photochemical ConversionTianjin University of Technology Tianjin 300384 P. R. China
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19
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de Souza RHFV, Picola IPD, Shi Q, Petrônio MS, Benderdour M, Fernandes JC, Lima AMF, Martins GO, Martinez Junior AM, de Oliveira Tiera VA, Tiera MJ. Diethylaminoethyl- chitosan as an efficient carrier for siRNA delivery: Improving the condensation process and the nanoparticles properties. Int J Biol Macromol 2018; 119:186-197. [PMID: 30031084 DOI: 10.1016/j.ijbiomac.2018.07.072] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2018] [Revised: 06/28/2018] [Accepted: 07/12/2018] [Indexed: 12/15/2022]
Abstract
Chitosan has been indicated as a promising carrier for the preparation of small interfering RNA (siRNA) delivery systems due to its remarkable properties. However, its weak interactions with siRNA molecules makes the condensation of siRNA molecules into nanoparticles difficult. In this work, a non-viral gene delivery system based on diethylaminoethyl chitosan (DEAE-CH) derivatives of varied Mw (25-230 kDa) having a low degree of substitution of 15% was investigated. The presence of secondary and tertiary amino groups strengthened the interaction of siRNA and DEAE-CH derivatives of higher Mw (130 kDa to 230 kDa) and provided the preparation of spherical nanoparticles at low charge ratios (N/P 2 to 3) with low polydispersities (0.15 to 0.2) in physiological ionic strength. Nanoparticles prepared with all derivatives exhibited remarkable silencing efficiencies (80% to 90%) on different cell lines (HeLa, MG-63, OV-3) by adjusting the charge ratios. A selected PEG-folic acid labeled derivative (FA-PEG-DEAE15-CH230) was synthesized and its nanoparticles completely inhibited the mRNA expression level of TNF-α in RAW 264.7 macrophages. The study demonstrates that the insertion of DEAE groups provides improved physical properties to chitosan-siRNA nanoparticles and holds potential for in vivo applications.
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Affiliation(s)
- Ricchard Hallan Felix Viegas de Souza
- Department of Chemistry and Environmental Sciences, IBILCE, São Paulo State University - UNESP, São José do Rio Preto, São Paulo, Brazil; Department of Physics, IBILCE, São Paulo State University - UNESP, São José do Rio Preto, São Paulo, Brazil; Orthopedic Research Laboratory, Hôpital du Sacré-Cœur de Montréal, Université de Montréal, Canada
| | - Isadora Pfeifer Dalla Picola
- Department of Chemistry and Environmental Sciences, IBILCE, São Paulo State University - UNESP, São José do Rio Preto, São Paulo, Brazil; Department of Physics, IBILCE, São Paulo State University - UNESP, São José do Rio Preto, São Paulo, Brazil; Orthopedic Research Laboratory, Hôpital du Sacré-Cœur de Montréal, Université de Montréal, Canada
| | - Qin Shi
- Orthopedic Research Laboratory, Hôpital du Sacré-Cœur de Montréal, Université de Montréal, Canada
| | - Maicon Segalla Petrônio
- Department of Chemistry and Environmental Sciences, IBILCE, São Paulo State University - UNESP, São José do Rio Preto, São Paulo, Brazil; Orthopedic Research Laboratory, Hôpital du Sacré-Cœur de Montréal, Université de Montréal, Canada
| | - Mohamed Benderdour
- Orthopedic Research Laboratory, Hôpital du Sacré-Cœur de Montréal, Université de Montréal, Canada
| | - Júlio Cesar Fernandes
- Orthopedic Research Laboratory, Hôpital du Sacré-Cœur de Montréal, Université de Montréal, Canada.
| | - Aline Margarete Furuyama Lima
- Department of Chemistry and Environmental Sciences, IBILCE, São Paulo State University - UNESP, São José do Rio Preto, São Paulo, Brazil
| | - Grazieli Olinda Martins
- Department of Chemistry and Environmental Sciences, IBILCE, São Paulo State University - UNESP, São José do Rio Preto, São Paulo, Brazil
| | - André Miguel Martinez Junior
- Department of Chemistry and Environmental Sciences, IBILCE, São Paulo State University - UNESP, São José do Rio Preto, São Paulo, Brazil
| | - Vera Aparecida de Oliveira Tiera
- Department of Chemistry and Environmental Sciences, IBILCE, São Paulo State University - UNESP, São José do Rio Preto, São Paulo, Brazil
| | - Marcio José Tiera
- Department of Chemistry and Environmental Sciences, IBILCE, São Paulo State University - UNESP, São José do Rio Preto, São Paulo, Brazil.
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20
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Design and development of a robust photo-responsive block copolymer framework for tunable nucleic acid delivery and efficient gene silencing. Polym J 2018. [DOI: 10.1038/s41428-018-0077-z] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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21
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22
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Fan W, Xia D, Zhu Q, Li X, He S, Zhu C, Guo S, Hovgaard L, Yang M, Gan Y. Functional nanoparticles exploit the bile acid pathway to overcome multiple barriers of the intestinal epithelium for oral insulin delivery. Biomaterials 2018; 151:13-23. [DOI: 10.1016/j.biomaterials.2017.10.022] [Citation(s) in RCA: 133] [Impact Index Per Article: 22.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2017] [Revised: 10/10/2017] [Accepted: 10/11/2017] [Indexed: 02/06/2023]
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23
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Huang Y, Chen Q, Lu H, An J, Zhu H, Yan X, Li W, Gao H. Near-infrared AIEgen-functionalized and diselenide-linked oligo-ethylenimine with self-sufficing ROS to exert spatiotemporal responsibility for promoted gene delivery. J Mater Chem B 2018; 6:6660-6666. [DOI: 10.1039/c8tb02207k] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
We attempted to synthesize an oligo-ethyleneimine (OEI)-crosslinked polycation, characterized with self-sufficing ROS by virtue of a functional AIE component and an ROS-labile diselenide linkage.
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Affiliation(s)
- Yongkang Huang
- School of Chemistry and Chemical Engineering
- Tianjin Key Laboratory of Organic Solar Cells and Photochemical Conversion
- Tianjin University of Technology
- Tianjin 300384
- P. R. China
| | - Qixian Chen
- School of Life Science and Biotechnology
- Dalian University of Technology
- Dalian 116024
- P. R. China
| | - Hongguang Lu
- School of Chemistry and Chemical Engineering
- Tianjin Key Laboratory of Organic Solar Cells and Photochemical Conversion
- Tianjin University of Technology
- Tianjin 300384
- P. R. China
| | - Jinxia An
- School of Chemistry and Chemical Engineering
- Tianjin Key Laboratory of Organic Solar Cells and Photochemical Conversion
- Tianjin University of Technology
- Tianjin 300384
- P. R. China
| | - Huajie Zhu
- School of Chemistry and Chemical Engineering
- Tianjin Key Laboratory of Organic Solar Cells and Photochemical Conversion
- Tianjin University of Technology
- Tianjin 300384
- P. R. China
| | - Xiangjie Yan
- School of Chemistry and Chemical Engineering
- Tianjin Key Laboratory of Organic Solar Cells and Photochemical Conversion
- Tianjin University of Technology
- Tianjin 300384
- P. R. China
| | - Wei Li
- School of Chemistry and Chemical Engineering
- Tianjin Key Laboratory of Organic Solar Cells and Photochemical Conversion
- Tianjin University of Technology
- Tianjin 300384
- P. R. China
| | - Hui Gao
- School of Chemistry and Chemical Engineering
- Tianjin Key Laboratory of Organic Solar Cells and Photochemical Conversion
- Tianjin University of Technology
- Tianjin 300384
- P. R. China
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24
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Zhang W, Meng X, Liu H, Xie L, Liu J, Xu H. Ratio of Polycation and Serum Is a Crucial Index for Determining the RNAi Efficiency of Polyplexes. ACS APPLIED MATERIALS & INTERFACES 2017; 9:43529-43537. [PMID: 29144122 DOI: 10.1021/acsami.7b15797] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
We report that the mass ratio of the polycation to serum in the medium determines the (RNA interference) RNAi efficiency in vitro by using spermine-modified pullulan (Ps) and spermine-modified dextran (Ds) as polycation models. The high ratio of Ps to serum protein (Ps/Pr) mediated the formation of larger polyplexes, which led to the promoted cellular uptake, enhanced lysosomal escape, and elevated RNAi efficiency. In addition, the supplementary of free Ps also enhanced small interfering RNA transfection because of the elevation of Ps/Pr. Similar results were obtained with Ds. Compared with the adjustment of the nitrogen to phosphate (N/P) ratio in the polyplex, these findings revealed a more applicable strategy to tune the polycation-mediated RNAi efficiency in the serum-containing culture medium.
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Affiliation(s)
- Weiqi Zhang
- Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences & Peking Union Medical College , Beijing 100005, P. R. China
| | - Xianghui Meng
- Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences & Peking Union Medical College , Beijing 100005, P. R. China
| | - Huike Liu
- Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences & Peking Union Medical College , Beijing 100005, P. R. China
| | - Lifei Xie
- Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences & Peking Union Medical College , Beijing 100005, P. R. China
| | - Jian Liu
- Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences & Peking Union Medical College , Beijing 100005, P. R. China
| | - Haiyan Xu
- Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences & Peking Union Medical College , Beijing 100005, P. R. China
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25
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Farshbaf M, Davaran S, Zarebkohan A, Annabi N, Akbarzadeh A, Salehi R. Significant role of cationic polymers in drug delivery systems. ARTIFICIAL CELLS NANOMEDICINE AND BIOTECHNOLOGY 2017; 46:1872-1891. [PMID: 29103306 DOI: 10.1080/21691401.2017.1395344] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Cationic polymers are characterized as the macromolecules that possess positive charges, which can be either inherently in the polymer side chains and/or its backbone. Based on their origins, cationic polymers are divided in two category including natural and synthetic, in which the possessed positive charges are as result of primary, secondary or tertiary amine functional groups that could be protonated in particular situations. Cationic polymers have been employed commonly as drug delivery agents due to their superior encapsulation efficacy, enhanced bioavailability, low toxicity and improved release profile. In this paper, we focus on the most prominent examples of cationic polymers which have been revealed to be applicable in drug delivery systems and we also discuss their general synthesis and surface modification methods as well as their controlled release profile in drug delivery.
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Affiliation(s)
- Masoud Farshbaf
- a Department of Medical Nanotechnology, Faculty of Advanced Medical Science , Tabriz University of Medical Science , Tabriz , Iran
| | - Soodabeh Davaran
- b Research Centre for Pharmaceutical Nanotechnology , Tabriz University of Medical Science , Tabriz , Iran
| | - Amir Zarebkohan
- a Department of Medical Nanotechnology, Faculty of Advanced Medical Science , Tabriz University of Medical Science , Tabriz , Iran
| | - Nasim Annabi
- c Biomaterials Innovation Research Centre , Brigham and Women's Hospital, Harvard Medical School , Cambridge , MA , USA.,d Harvard-MIT Division of Health Sciences and Technology , Massachusetts Institute of Technology , Cambridge , MA , USA.,e Department of Chemical Engineering , Northeastern University , Boston , MA , USA
| | - Abolfazl Akbarzadeh
- a Department of Medical Nanotechnology, Faculty of Advanced Medical Science , Tabriz University of Medical Science , Tabriz , Iran
| | - Roya Salehi
- f Drug Applied Research Centre and Department of Medical Nanotechnology, Faculty of Advanced Medical Science , Tabriz University of Medical Science , Tabriz , Iran
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26
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Ma PL, Lavertu M, Winnik FM, Buschmann MD. Stability and binding affinity of DNA/chitosan complexes by polyanion competition. Carbohydr Polym 2017; 176:167-176. [DOI: 10.1016/j.carbpol.2017.08.002] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2016] [Revised: 05/24/2017] [Accepted: 08/01/2017] [Indexed: 12/20/2022]
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27
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Veilleux D, Gopalakrishna Panicker RK, Chevrier A, Biniecki K, Lavertu M, Buschmann MD. Lyophilisation and concentration of chitosan/siRNA polyplexes: Influence of buffer composition, oligonucleotide sequence, and hyaluronic acid coating. J Colloid Interface Sci 2017; 512:335-345. [PMID: 29080529 DOI: 10.1016/j.jcis.2017.09.084] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2017] [Revised: 09/20/2017] [Accepted: 09/21/2017] [Indexed: 12/22/2022]
Abstract
Chitosan (CS)/siRNA polyplexes have great therapeutic potential for treating multiple diseases by gene silencing. However, clinical application of this technology requires the development of concentrated, hemocompatible, pH neutral formulations for safe and efficient administration. In this study we evaluate physicochemical properties of chitosan polyplexes in various buffers at increasing ionic strengths, to identify conditions for freeze-drying and rehydration at higher doses of uncoated or hyaluronic acid (HA)-coated polyplexes while maintaining physiological compatibility. Optimized formulations are used to evaluate the impact of the siRNA/oligonucleotide sequence on polyplex physicochemical properties, and to measure their in vitro silencing efficiency, cytotoxicity, and hemocompatibility. Specific oligonucleotide sequences influence polyplex physical properties at low N:P ratios, as well as their stability during freeze-drying. Nanoparticles display greater stability for oligodeoxynucleotides ODN vs siRNA; AT-rich vs GC-rich; and overhangs vs blunt ends. Using this knowledge, various CS/siRNA polyplexes are prepared with and without HA coating, freeze-dried and rehydrated at increased concentrations using reduced rehydration volumes. These polyplexes are non-cytotoxic and preserve silencing activity even after rehydration to 20-fold their initial concentration, while HA-coated polyplexes at pH∼7 also displayed increased hemocompatibility. These concentrated formulations represent a critical step towards clinical development of chitosan-based oligonucleotide intravenous delivery systems.
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Affiliation(s)
- Daniel Veilleux
- Institute of Biomedical Engineering/Department of Chemical Engineering, Polytechnique Montreal, Montreal, Quebec, Canada
| | | | - Anik Chevrier
- Institute of Biomedical Engineering/Department of Chemical Engineering, Polytechnique Montreal, Montreal, Quebec, Canada
| | | | - Marc Lavertu
- Institute of Biomedical Engineering/Department of Chemical Engineering, Polytechnique Montreal, Montreal, Quebec, Canada
| | - Michael D Buschmann
- Institute of Biomedical Engineering/Department of Chemical Engineering, Polytechnique Montreal, Montreal, Quebec, Canada.
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Fong D, Grégoire-Gélinas P, Cheng AP, Mezheritsky T, Lavertu M, Sato S, Hoemann CD. Lysosomal rupture induced by structurally distinct chitosans either promotes a type 1 IFN response or activates the inflammasome in macrophages. Biomaterials 2017; 129:127-138. [PMID: 28340358 DOI: 10.1016/j.biomaterials.2017.03.022] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2016] [Revised: 02/20/2017] [Accepted: 03/14/2017] [Indexed: 12/12/2022]
Abstract
Chitosan is a family of glucosamine and N-acetyl glucosamine polysaccharides with poorly understood immune modulating properties. Here, functional U937 macrophage responses were analyzed in response to a novel library of twenty chitosans with controlled degree of deacetylation (DDA, 60-98%), molecular weight (1 to >100 kDa), and acetylation pattern (block vs. random). Specific chitosan preparations (10 or 190 kDa 80% block DDA and 3, 5, or 10 kDa 98% DDA) either induced macrophages to release CXCL10 and IL-1ra at 5-50 μg/mL, or activated the inflammasome to release IL-1β and PGE2 at 50-150 μg/mL. Chitosan induction of these factors required lysosomal acidification. CXCL10 production was preceded by lysosomal rupture as shown by time-dependent co-localization of galectin-3 and chitosan and slowed autophagy flux, and specifically depended on IFN-β paracrine activity and STAT-2 activation that could be suppressed by PGE2. Chitosan induced a type I IFN paracrine response or inflammasome response depending on the extent of lysosomal rupture and cytosolic foreign body invasion. This study identifies the structural motifs that lead to chitosan-driven cytokine responses in macrophages and indicates that lysosomal rupture is a key mechanism that determines the endogenous release of either IL-1ra or IL-1β.
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Affiliation(s)
- David Fong
- Institute of Biomedical Engineering, École Polytechnique, Montreal, QC, H3T 1J4, Canada
| | | | - Alexandre P Cheng
- Department of Chemical Engineering, École Polytechnique, Montreal, QC, H3T 1J4, Canada
| | - Tal Mezheritsky
- Department of Chemical Engineering, École Polytechnique, Montreal, QC, H3T 1J4, Canada
| | - Marc Lavertu
- Department of Chemical Engineering, École Polytechnique, Montreal, QC, H3T 1J4, Canada
| | - Sachiko Sato
- Research Centre for Infectious Diseases, Faculty of Medicine, Laval University, Quebec, QC, G1V 4G2, Canada
| | - Caroline D Hoemann
- Institute of Biomedical Engineering, École Polytechnique, Montreal, QC, H3T 1J4, Canada; Department of Chemical Engineering, École Polytechnique, Montreal, QC, H3T 1J4, Canada; FRQ-S Biomedical Research Group/ Groupe de Recherche en Sciences et Technologies Biomédicales, École Polytechnique, Montreal, QC, H3T 1J4, Canada.
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29
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Picola IPD, Shi Q, Fernandes JC, Petrônio MS, Lima AMF, de Oliveira Tiera VA, Tiera MJ. Chitosan derivatives for gene transfer: effect of phosphorylcholine and diethylaminoethyl grafts on the in vitro transfection efficiency. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2016; 27:1611-30. [PMID: 27532422 DOI: 10.1080/09205063.2016.1225333] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
The purpose of this work was to improve the functional properties of chitosan for gene transfer by inserting phosphorylcholine (PC) and diethylaminoethyl (DEAE) groups into the main chain. A series of derivatives containing increasing contents of DEAE and a fixed content of PC groups were synthesized and characterized, aiming to evaluate the effect of these groups on the nanoparticles' properties and the in vitro transfection efficiency. The derivatives were soluble at physiological pH levels and all derivatives were less cytotoxic than the control, the lipid lipofectamine. The obtained derivatives complexed pDNA into nanoparticles with smaller sizes and higher zeta potentials than plain chitosan. The in vitro transfection was performed with nanoparticles prepared at pH 6.3 and 7.4 and the results showed that nanoparticles prepared with derivatives containing 20% of PC groups (PC18-CH) and high degrees of substitution by DEAE (PC20-CH-DEAE100, CH-DEAE80, CH-DEAE100) displayed the better transfection efficiencies in HeLa cells, reaching relative values comparable to lipofectamine. The most effective derivative, PC18CH, was selected for complexation with siRNA and its complexes demonstrated an in vitro knockdown efficiency highly dependent on the N/P ratio. Our combined results indicated that, by means of controlled modifications, the limitations of chitosan can be overcome to obtain more effective carriers based on chitosan, and the derivatives here studied hold potential for in vivo studies.
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Affiliation(s)
- Isadora Pfeifer Dalla Picola
- a Department of Physics , IBILCE, São Paulo State University - UNESP , São José do Rio Preto , São Paulo , Brazil.,b Orthopedic Research Laboratory , Hôpital du Sacré-Cœur de Montréal, Université de Montréal , Montréal , Canada
| | - Qin Shi
- b Orthopedic Research Laboratory , Hôpital du Sacré-Cœur de Montréal, Université de Montréal , Montréal , Canada
| | - Júlio Cesar Fernandes
- b Orthopedic Research Laboratory , Hôpital du Sacré-Cœur de Montréal, Université de Montréal , Montréal , Canada
| | - Maicon Segalla Petrônio
- c Department of Chemistry and Environmental Sciences , IBILCE, São Paulo State University - UNESP , São José do Rio Preto , São Paulo , Brazil
| | - Aline Margarete Furuyama Lima
- c Department of Chemistry and Environmental Sciences , IBILCE, São Paulo State University - UNESP , São José do Rio Preto , São Paulo , Brazil
| | - Vera Aparecida de Oliveira Tiera
- c Department of Chemistry and Environmental Sciences , IBILCE, São Paulo State University - UNESP , São José do Rio Preto , São Paulo , Brazil
| | - Marcio José Tiera
- c Department of Chemistry and Environmental Sciences , IBILCE, São Paulo State University - UNESP , São José do Rio Preto , São Paulo , Brazil
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30
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Patel BJ, Vignesh NK, Hortelano G. Chitosan DNA nanoparticles for oral gene delivery. World J Med Genet 2016; 6:22-33. [DOI: 10.5496/wjmg.v6.i3.22] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/17/2016] [Accepted: 08/08/2016] [Indexed: 02/06/2023] Open
Abstract
Gene therapy is a promising technology with potential applications in the treatment of medical conditions, both congenital and acquired. Despite its label as breakthrough technology for the 21st century, the simple concept of gene therapy - the introduction of a functional copy of desired genes in affected individuals - is proving to be more challenging than expected. Oral gene delivery has shown intriguing results and warrants further exploration. In particular, oral administration of chitosan DNA nanoparticles, one the most commonly used formulations of therapeutic DNA, has repeatedly demonstrated successful in vitro and in vivo gene transfection. While oral gene therapy has shown immense promise as treatment options in a variety of diseases, there are still significant barriers to overcome before it can be considered for clinical applications. In this review we provide an overview of the physiologic challenges facing the use of chitosan DNA nanoparticles for oral gene delivery at both the extracellular and intracellular level. From administration at the oral cavity, chitosan nanoparticles must traverse the gastrointestinal tract and protect its DNA contents from significant jumps in pH levels, various intestinal digestive enzymes, thick mucus layers with high turnover, and a proteinaceous glycocalyx meshwork. Once these extracellular barriers are overcome, chitosan DNA nanoparticles must enter intestinal cells, escape endolysosomes, and disassociate from genetic material at the appropriate time allowing transport of genetic material into the nucleus to deliver a therapeutic effect. The properties of chitosan nanoparticles and modified nanoparticles are discussed in this review. An understanding of the barriers to oral gene delivery and how to overcome them would be invaluable for future gene therapy development.
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31
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Structure Dependence of Lysosomal Transit of Chitosan-Based Polyplexes for Gene Delivery. Mol Biotechnol 2016; 58:648-656. [DOI: 10.1007/s12033-016-9964-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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32
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Moreno PMD, Santos JC, Gomes CP, Varela-Moreira A, Costa A, Leiro V, Mansur H, Pêgo AP. Delivery of Splice Switching Oligonucleotides by Amphiphilic Chitosan-Based Nanoparticles. Mol Pharm 2016; 13:344-56. [PMID: 26702499 DOI: 10.1021/acs.molpharmaceut.5b00538] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Splice switching oligonucleotides (SSOs) are a class of single-stranded antisense oligonucleotides (ssONs) being used as gene therapeutics and demonstrating great therapeutic potential. The availability of biodegradable and biocompatible delivery vectors that could improve delivery efficiencies, reduce dosage, and, in parallel, reduce toxicity concerns could be advantageous for clinical translation. In this work we explored the use of quaternized amphiphilic chitosan-based vectors in nanocomplex formation and delivery of splice switching oligonucleotides (SSO) into cells, while providing insights regarding cellular uptake of such complexes. Results show that the chitosan amphiphilic character is important when dealing with SSOs, greatly improving colloidal stability under serum conditions, as analyzed by dynamic light scattering, and enhancing cellular association. Nanocomplexes were found to follow an endolysosomal route with a long lysosome residence time. Conjugation of a hydrophobic moiety, stearic acid, to quaternized chitosan was a necessary condition to achieve transfection, as an unmodified quaternary chitosan was completely ineffective. We thus demonstrate that amphiphilic quaternized chitosan is a biomaterial that holds promise and warrants further development as a platform for SSO delivery strategies.
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Affiliation(s)
- Pedro M D Moreno
- INEB-Instituto de Engenharia Biomédica, Universidade do Porto (UPorto) , Rua Alfredo Allen, 208, 4200-135 Porto, Portugal.,i3S-Instituto de Investigação e Inovação em Saúde , UPorto, 4200-135 Porto, Portugal
| | - Joyce C Santos
- INEB-Instituto de Engenharia Biomédica, Universidade do Porto (UPorto) , Rua Alfredo Allen, 208, 4200-135 Porto, Portugal.,i3S-Instituto de Investigação e Inovação em Saúde , UPorto, 4200-135 Porto, Portugal.,CeNano2I, Department of Metallurgical and Materials Engineering, UFMG, 31270-901 Belo Horizonte, Brazil
| | - Carla P Gomes
- INEB-Instituto de Engenharia Biomédica, Universidade do Porto (UPorto) , Rua Alfredo Allen, 208, 4200-135 Porto, Portugal.,i3S-Instituto de Investigação e Inovação em Saúde , UPorto, 4200-135 Porto, Portugal.,Faculdade de Engenharia da UPorto (FEUP), 4200-319 Porto, Portugal
| | - Aida Varela-Moreira
- INEB-Instituto de Engenharia Biomédica, Universidade do Porto (UPorto) , Rua Alfredo Allen, 208, 4200-135 Porto, Portugal.,i3S-Instituto de Investigação e Inovação em Saúde , UPorto, 4200-135 Porto, Portugal.,Faculdade de Medicina da UPorto (FMUP), 4200-319 Porto, Portugal
| | - Artur Costa
- INEB-Instituto de Engenharia Biomédica, Universidade do Porto (UPorto) , Rua Alfredo Allen, 208, 4200-135 Porto, Portugal.,i3S-Instituto de Investigação e Inovação em Saúde , UPorto, 4200-135 Porto, Portugal
| | - Victoria Leiro
- INEB-Instituto de Engenharia Biomédica, Universidade do Porto (UPorto) , Rua Alfredo Allen, 208, 4200-135 Porto, Portugal.,i3S-Instituto de Investigação e Inovação em Saúde , UPorto, 4200-135 Porto, Portugal
| | - Herman Mansur
- CeNano2I, Department of Metallurgical and Materials Engineering, UFMG, 31270-901 Belo Horizonte, Brazil
| | - Ana P Pêgo
- INEB-Instituto de Engenharia Biomédica, Universidade do Porto (UPorto) , Rua Alfredo Allen, 208, 4200-135 Porto, Portugal.,i3S-Instituto de Investigação e Inovação em Saúde , UPorto, 4200-135 Porto, Portugal.,Faculdade de Engenharia da UPorto (FEUP), 4200-319 Porto, Portugal.,Instituto de Ciências Biomédicas Abel Salazar (ICBAS) , UPorto, 4050-313 Porto, Portugal
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33
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Veilleux D, Nelea M, Biniecki K, Lavertu M, Buschmann MD. Preparation of Concentrated Chitosan/DNA Nanoparticle Formulations by Lyophilization for Gene Delivery at Clinically Relevant Dosages. J Pharm Sci 2016; 105:88-96. [DOI: 10.1016/j.xphs.2015.11.001] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2015] [Revised: 10/08/2015] [Accepted: 10/28/2015] [Indexed: 10/22/2022]
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34
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Leclercq L, Reinhard S, Chamieh J, Döblinger M, Wagner E, Cottet H. Fast Characterization of Polyplexes by Taylor Dispersion Analysis. Macromolecules 2015. [DOI: 10.1021/acs.macromol.5b01824] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Laurent Leclercq
- Institut
des Biomolécules Max Mousseron (IBMM, UMR 5247 CNRS, Ecole
Nationale Supérieure de Chimie de Montpellier), Université de Montpellier, Place Eugène Bataillon, CC 1706, 34095 Montpellier, Cedex 5, France
| | | | - Joseph Chamieh
- Institut
des Biomolécules Max Mousseron (IBMM, UMR 5247 CNRS, Ecole
Nationale Supérieure de Chimie de Montpellier), Université de Montpellier, Place Eugène Bataillon, CC 1706, 34095 Montpellier, Cedex 5, France
| | | | | | - Hervé Cottet
- Institut
des Biomolécules Max Mousseron (IBMM, UMR 5247 CNRS, Ecole
Nationale Supérieure de Chimie de Montpellier), Université de Montpellier, Place Eugène Bataillon, CC 1706, 34095 Montpellier, Cedex 5, France
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35
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Fortier C, Louvier E, Durocher Y, De Crescenzo G. Tailoring the Surface of a Gene Delivery Vector with Carboxymethylated Dextran: A Systematic Analysis. Biomacromolecules 2015; 16:1671-81. [DOI: 10.1021/acs.biomac.5b00221] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Charles Fortier
- Department
of Chemical Engineering, Groupe de Recherche en Sciences et Technologies
Biomédicales (GRSTB), École Polytechnique de Montréal, P.O.
Box 6079, succ. Centre-Ville, Montreal (QC), Canada H3C 3A7
- Life Sciences
- NRC Human Health Therapeutics Portfolio, Building Montreal-Royalmount,
National Research Council Canada, Montreal (QC), Canada H4P 2R2
| | - Elodie Louvier
- Life Sciences
- NRC Human Health Therapeutics Portfolio, Building Montreal-Royalmount,
National Research Council Canada, Montreal (QC), Canada H4P 2R2
- Département
de Biochimie et Médecine Moléculaire, Université de Montréal, Montréal (QC), Canada H3C 3J7
| | - Yves Durocher
- Life Sciences
- NRC Human Health Therapeutics Portfolio, Building Montreal-Royalmount,
National Research Council Canada, Montreal (QC), Canada H4P 2R2
- Département
de Biochimie et Médecine Moléculaire, Université de Montréal, Montréal (QC), Canada H3C 3J7
| | - Gregory De Crescenzo
- Department
of Chemical Engineering, Groupe de Recherche en Sciences et Technologies
Biomédicales (GRSTB), École Polytechnique de Montréal, P.O.
Box 6079, succ. Centre-Ville, Montreal (QC), Canada H3C 3A7
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36
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Foster AA, Greco CT, Green MD, Epps TH, Sullivan MO. Light-mediated activation of siRNA Release in diblock copolymer assemblies for controlled gene silencing. Adv Healthc Mater 2015; 4:760-70. [PMID: 25530259 PMCID: PMC4429132 DOI: 10.1002/adhm.201400671] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2014] [Revised: 11/24/2014] [Indexed: 11/08/2022]
Abstract
Controllable release is particularly important for the delivery of small interfering RNA (siRNA), as siRNAs have a high susceptibility to enzymatic degradation if release is premature, yet lack silencing activity if they remain inaccessible within the cytoplasm. To overcome these hurdles, novel and tailorable mPEG-b-poly(5-(3-(amino)propoxy)-2-nitrobenzyl methacrylate) (mPEG-b-P(APNBMA)) diblock copolymers containing light-sensitive o-nitrobenzyl moieties and pendant amines are employed to provide both efficient siRNA binding, via electrostatic and hydrophobic interactions, as well as triggered charge reversal and nucleic acid release. In particular, siRNA/mPEG-b-P(APNBMA)23.6 polyplexes show minimal aggregation in physiological salt and serum, and enhanced resistance to polyanion-induced unpackaging compared to polyethylenimine preparations. Cellular delivery of siRNA/mPEG-b-P(APNBMA)23.6 polyplexes reveals greater than 80% cellular transfection, as well as rapid and widespread cytoplasmic distribution. Additionally, UV irradiation indicates ≈70% reduction in targeted gene expression following siRNA/mPEG-b-P(APNBMA)23.6 polyplex treatment, as compared to 0% reduction in polyplex-treated cells without UV irradiation, and only ≈30% reduction for Lipofectamine-treated cells. The results here highlight the potential of these light-sensitive copolymers with a well-defined on/off switch for applications including cellular patterning for guided cell growth and extension, and cellular microarrays for exploring protein and drug interactions that require enhanced spatiotemporal control of gene activation.
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Affiliation(s)
- Abbygail A. Foster
- Department of Chemical and Biomolecular Engineering, Newark, DE 19716, USA
| | - Chad T. Greco
- Department of Chemical and Biomolecular Engineering, Newark, DE 19716, USA
| | - Matthew D. Green
- Department of Chemical and Biomolecular Engineering, Newark, DE 19716, USA
| | - Thomas H. Epps
- Department of Chemical and Biomolecular Engineering, Newark, DE 19716, USA
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37
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Thomsen TB, Li L, Howard KA. Mucus barrier-triggered disassembly of siRNA nanocarriers. NANOSCALE 2014; 6:12547-12554. [PMID: 25179224 DOI: 10.1039/c4nr01584c] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
The mucus overlying mucosal epithelial surfaces presents not only a biological barrier to the penetration of potential pathogens, but also therapeutic modalities including RNAi-based nanocarriers. Movement of nanomedicines across the mucus barriers of the gastrointestinal mucosa is modulated by interactions of the nanomedicine carriers with mucin glycoproteins inside the mucus, potentiated by the large surface area of the nanocarrier. We have developed a fluorescence activation-based reporter system showing that the interaction between polyanionic mucins and the cationic chitosan/small interfering RNA (siRNA) nanocarriers (polyplexes) results in the disassembly and consequent triggered release of fluorescent siRNA. The quantity of release was found to be dependent on the molar ratio between chitosan amino groups and siRNA phosphate groups (NP ratio) of the polyplexes with a maximal estimated 48.6% release of siRNA over 30 min at NP 60. Furthermore, a microfluidic in vitro model of the gastrointestinal mucus barrier was used to visualize the dynamic interaction between chitosan/siRNA nanocarriers and native purified porcine stomach mucins. We observed strong interactions and aggregations at the mucin-liquid interface, followed by an NP ratio dependent release and consequent diffusion of siRNA across the mucin barrier. This work describes a new model of interaction at the nanocarrier-mucin interface and has important implications for the design and development of nucleic acid-based nanocarrier therapeutics for mucosal disease treatments and also provides insights into nanoscale pathogenic processes.
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Affiliation(s)
- Troels B Thomsen
- Interdisciplinary Nanoscience Center (iNANO), Gustav Wieds Vej 14, DK-8000, Aarhus, Denmark.
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38
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Intranasal chitosan-DNA vaccines that protect across influenza virus subtypes. Int J Pharm 2014; 473:113-25. [DOI: 10.1016/j.ijpharm.2014.07.005] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2014] [Revised: 06/03/2014] [Accepted: 07/02/2014] [Indexed: 12/19/2022]
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Targeted delivery of miRNA therapeutics for cardiovascular diseases: opportunities and challenges. Clin Sci (Lond) 2014; 127:351-65. [PMID: 24895056 DOI: 10.1042/cs20140005] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Dysregulation of miRNA expression has been associated with many cardiovascular diseases in animal models, as well as in patients. In the present review, we summarize recent findings on the role of miRNAs in cardiovascular diseases and discuss the opportunities, possibilities and challenges of using miRNAs as future therapeutic targets. Furthermore, we focus on the different approaches that can be used to deliver these newly developed miRNA therapeutics to their sites of action. Since siRNAs are structurally homologous with the miRNA therapeutics, important lessons learned from siRNA delivery strategies are discussed that might be applicable to targeted delivery of miRNA therapeutics, thereby reducing costs and potential side effects, and improving efficacy.
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40
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Xu T, Liu W, Wang S, Shao Z. Elucidating the role of free polycationic chains in polycation gene carriers by free chains of polyethylenimine or N,N,N-trimethyl chitosan plus a certain polyplex. Int J Nanomedicine 2014; 9:3231-45. [PMID: 25061299 PMCID: PMC4086671 DOI: 10.2147/ijn.s64308] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
Polycations as gene carriers have attracted considerable attention over the past decade. Generally, polyplexes between polycations and deoxyribonucleic acid (DNA) are formed at low N/P ratios (the ratios of the numbers of nitrogen atoms in a polycation to the numbers of phosphorus atoms in DNA), but high transfection efficiency can only be obtained at much higher N/P ratios. Thus, many polycationic chains are still free in solution. In this study, we investigated the detailed functions of free polyethylenimine chains (PEI-F) and free N,N,N-trimethyl chitosan chains (TMC-F) using the same polyplex, ie, TMC polyplex (TMC-P), which has high stability in Dulbecco’s Modified Eagle’s Medium (DMEM). Meanwhile, PEI polyplex (PEI-P)/PEI-F was also evaluated rather than PEI-P/TMC-F because the stability of PEI-P is low in DMEM and, in the latter case, the TMC-F may replace the bound PEI chain in PEI-P to form TMC-P. The transfection results show that both TMC-F and PEI-F can significantly increase the transfection efficiency of TMC-P; however, PEI-F can upregulate the gene expression of TMC-P more efficiently than TMC-F. Further investigations on the endocytosis and intracellular trafficking show that PEI-P/PEI-F, TMC-P/PEI-F, and TMC-P/TMC-F exhibit similar cellular uptake efficiency. However, by shutting down the clathrin-mediated endocytosis or vacuolar proton pump, the transfection efficiency decreases in the order of PEI-P/PEI-F > TMC-P/PEI-F > TMC-P/TMC-F. These findings indicate that PEI-F and TMC-F may promote the transfection efficiency of the polyplex by affecting its cellular uptake pathway and intracellular trafficking.
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Affiliation(s)
- Tao Xu
- State Key Laboratory of Molecular Engineering of Polymer, Advanced Materials Laboratory, Department of Macromolecular Science, Fudan University, Shanghai, People's Republic of China
| | - Wei Liu
- Laboratory for Reproductive Immunology, Hospital and Institute of Obstetrics and Gynecology, Fudan University, Shanghai, People's Republic of China
| | - Suhang Wang
- State Key Laboratory of Molecular Engineering of Polymer, Advanced Materials Laboratory, Department of Macromolecular Science, Fudan University, Shanghai, People's Republic of China
| | - Zhengzhong Shao
- State Key Laboratory of Molecular Engineering of Polymer, Advanced Materials Laboratory, Department of Macromolecular Science, Fudan University, Shanghai, People's Republic of China
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41
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Low Molecular Weight Chitosan (LMWC)-based Polyplexes for pDNA Delivery: From Bench to Bedside. Polymers (Basel) 2014. [DOI: 10.3390/polym6061727] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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42
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Kedjarune-Leggat U, Supaprutsakul C, Chotigeat W. Ultrasound treatment increases transfection efficiency of low molecular weight chitosan in fibroblasts but not in KB cells. PLoS One 2014; 9:e92076. [PMID: 24651870 PMCID: PMC3961286 DOI: 10.1371/journal.pone.0092076] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2013] [Accepted: 02/18/2014] [Indexed: 11/18/2022] Open
Abstract
The aim of this study was to optimize transfection efficiency (TE) of the depolymerized low molecular weight (LW) chitosan with molecular weight (Mw) at 16 kDa and 54% degree of deacetylation (DDA) on three primary cells of fibroblast (F), dental pulp (P), and periodontal ligament (PDL). The effect of low frequency ultrasound treatment on the chitosan-DNA complexes prior transfection on TE was also evaluated. This LW chitosan required high N/P ratio (>34) to bind DNA completely. An N/P ratio above 56 tended to improve TE in most primary cells nearly at the level of Lipofectamine. Ultrasonication can reduce the aggregation and sizes of the chitosan-DNA microparticles. It increased TE of F cells at an N/P ratio above 34, which was higher than Lipofectamine. However, this ultrasound treatment caused loss of TE in KB cells. MTT assay of these chitosan-DNA complexes revealed no significant cytotoxicity to both KB and F cells. This LW chitosan has potential for further development into a safer alternative to gene delivery systems in various cells of interest; however the optimal conditions have to be adjusted, depending on each cell source.
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Affiliation(s)
- Ureporn Kedjarune-Leggat
- Department of Oral Biology and Occlusion, Faculty of Dentistry, Prince of Songkla University, Hat-Yai, Songkhla, Thailand
- * E-mail:
| | - Chanyapat Supaprutsakul
- Department of Oral Biology and Occlusion, Faculty of Dentistry, Prince of Songkla University, Hat-Yai, Songkhla, Thailand
- Department of Molecular Biotechnology and Bioinformatics, Faculty of Science, Prince of Songkla University, Hat-Yai, Songkhla, Thailand
| | - Wilaiwan Chotigeat
- Department of Molecular Biotechnology and Bioinformatics, Faculty of Science, Prince of Songkla University, Hat-Yai, Songkhla, Thailand
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43
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Niebel Y, Buschmann MD, Lavertu M, De Crescenzo G. Combined analysis of polycation/ODN polyplexes by analytical ultracentrifugation and dynamic light scattering reveals their size, refractive index increment, stoichiometry, porosity, and molecular weight. Biomacromolecules 2014; 15:940-7. [PMID: 24571262 DOI: 10.1021/bm4018148] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Analytical ultracentrifugation (AUC) and dynamic light scattering (DLS) were combined to characterize polyplexes formed with 10 kDa chitosan or 10 kDa PEI and oligodeoxynucleotides (ODN). Combined analysis revealed that both polyplexes were highly porous (over 80%) and that their weight average hydrodynamic diameters were of 46 and 55 nm for chitosan/ODN and PEI/ODN complexes, respectively. Transformation of the sedimentation coefficient distribution to a size and molecular weight distribution gave an average molecular weight of 19 and 29 MDa for chitosan and PEI polyplexes, respectively. Data from AUC also allowed for the calculation of the actual dn/dc and N/P ratios of each polyplex. Additional data from scanning electron microscopy and static light scattering confirmed the conclusions that were initially derived from AUC and DLS, thus validating that the combination of AUC and DLS is a powerful approach to characterize polyplexes in terms of refractive index increment, size, and molecular weight distributions, as well as porosity.
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Affiliation(s)
- Yves Niebel
- Department of Chemical Engineering, Groupe de Recherche en Sciences et Technologies Biomédicales, École Polytechnique de Montréal , P.O. Box 6079, succ. Centre-Ville, Montréal Quebec, Canada H3C 3A7
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Shen Y, Dai L, Li X, Liang R, Guan G, Zhang Z, Cao W, Liu Z, Mei S, Liang W, Qin S, Xu J, Chen H. Epidermal stem cells cultured on collagen-modified chitin membrane induce in situ tissue regeneration of full-thickness skin defects in mice. PLoS One 2014; 9:e87557. [PMID: 24516553 PMCID: PMC3917838 DOI: 10.1371/journal.pone.0087557] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2013] [Accepted: 12/22/2013] [Indexed: 12/17/2022] Open
Abstract
A Large scale of full-thickness skin defects is lack of auto-grafts and which requires the engineered skin substitutes for repair and regeneration. One major obstacle in skin tissue engineering is to expand epidermal stem cells (ESCs) and develop functional substitutes. The other one is the scaffold of the ESCs. Here, we applied type I collagen-modified chitin membrane to form collagen-chitin biomimetic membrane (C-CBM), which has been proved to have a great biocompatibility and degraded totally when it was subcutaneously transplanted into rat skin. ESCs were cultured, and the resulting biofilm was used to cover full-thickness skin defects in nude mice. The transplantation of ESCs- collagen- chitn biomimetic membrane (ESCs-C-CBM) has achieved in situ skin regeneration. In nude mice, compared to controls with collagen-chitin biomimetic membrane (C-CBM) only, the ESCs-C-CBM group had significantly more dermatoglyphs on the skin wound 10 w after surgery, and the new skin was relatively thick, red and elastic. In vivo experiments showed obvious hair follicle cell proliferation in the full-thickness skin defect. Stem cell markers examination showed active ESCs in repair and regeneration of skin. The results indicate that the collagen-modified chitin membrane carry with ESCs has successfully regenerated the whole skin with all the skin appendages and function.
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Affiliation(s)
- Yan Shen
- Guangzhou Institute of Traumatic Surgery, Guangzhou Red Cross Hospital Medical College, Jinan University, Guangzhou, People’s Republic of China
| | - Libing Dai
- Guangzhou Institute of Traumatic Surgery, Guangzhou Red Cross Hospital Medical College, Jinan University, Guangzhou, People’s Republic of China
| | - Xiaojian Li
- Guangzhou Institute of Traumatic Surgery, Guangzhou Red Cross Hospital Medical College, Jinan University, Guangzhou, People’s Republic of China
- * E-mail:
| | - Rong Liang
- Guangzhou Institute of Traumatic Surgery, Guangzhou Red Cross Hospital Medical College, Jinan University, Guangzhou, People’s Republic of China
| | - Guangxiong Guan
- Department of Medical Laboratory, Second Affiliated Hospital of Guangzhou Medical College, Guangzhou, People’s Republic of China
| | - Zhi Zhang
- Guangzhou Institute of Traumatic Surgery, Guangzhou Red Cross Hospital Medical College, Jinan University, Guangzhou, People’s Republic of China
| | - Wenjuan Cao
- Guangzhou Institute of Traumatic Surgery, Guangzhou Red Cross Hospital Medical College, Jinan University, Guangzhou, People’s Republic of China
| | - Zhihe Liu
- Guangzhou Institute of Traumatic Surgery, Guangzhou Red Cross Hospital Medical College, Jinan University, Guangzhou, People’s Republic of China
| | - Shirley Mei
- Student of Sophie Davis School of Biomedical Education, Mack Lipkin Fellowship, New York, New York, United States of America
| | - Weiguo Liang
- Guangzhou Institute of Traumatic Surgery, Guangzhou Red Cross Hospital Medical College, Jinan University, Guangzhou, People’s Republic of China
| | - Shennan Qin
- Guangzhou Institute of Traumatic Surgery, Guangzhou Red Cross Hospital Medical College, Jinan University, Guangzhou, People’s Republic of China
| | - Jiake Xu
- School of Pathology and Laboratory Medicine, The University of Western Australia, Nedlands, Western Australia, Australia
| | - Honghui Chen
- Guangzhou Institute of Traumatic Surgery, Guangzhou Red Cross Hospital Medical College, Jinan University, Guangzhou, People’s Republic of China
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Martirosyan A, Olesen MJ, Howard KA. Chitosan-Based Nanoparticles for Mucosal Delivery of RNAi Therapeutics. NONVIRAL VECTORS FOR GENE THERAPY - LIPID- AND POLYMER-BASED GENE TRANSFER 2014; 88:325-52. [DOI: 10.1016/b978-0-12-800148-6.00011-0] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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New gene delivery system based on oligochitosan and solid lipid nanoparticles: ‘In vitro’ and ‘in vivo’ evaluation. Eur J Pharm Sci 2013; 50:484-91. [DOI: 10.1016/j.ejps.2013.08.013] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2013] [Revised: 06/12/2013] [Accepted: 08/13/2013] [Indexed: 01/03/2023]
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Dai T, Yang E, Sun Y, Zhang L, Zhang L, Shen N, Li S, Liu L, Xie Y, Wu S, Gao Z. Preparation and drug release mechanism of CTS-TAX-NP-MSCs drug delivery system. Int J Pharm 2013; 456:186-94. [DOI: 10.1016/j.ijpharm.2013.07.070] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2013] [Revised: 07/02/2013] [Accepted: 07/19/2013] [Indexed: 12/17/2022]
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Burke PA, Pun SH, Reineke TM. Advancing polymeric delivery systems amidst a nucleic acid therapy renaissance. ACS Macro Lett 2013; 2:928-934. [PMID: 24683504 PMCID: PMC3967836 DOI: 10.1021/mz400418j] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Nucleic acid therapeutics are attracting renewed interest due to recent clinical advances and product approvals. Most leading programs use chemical conjugates, or viral vectors in the case of gene therapy, while several use no delivery system at all. Polymer systems, which have been at the periphery of this renaissance, often involve greater molecular complexity than competing approaches, which must be justified by their advantages. Advanced analytical methods, along with biological tools for characterizing biotransformation and intracellular trafficking, are increasingly being applied to nucleic acid delivery systems including those based on polymers. These frontiers of investigation create the opportunity for an era where highly defined polymer compositions are optimized based on mechanistic insights in a way that has not been previously possible, offering the prospect of greater differentiation from alternatives. This will require integrated collaboration between polymer scientists and those from other disciplines.
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Affiliation(s)
- Paul A. Burke
- Burke Bioventures LLC, PO Box 15703, Boston, MA 02215
- Department of Bioengineering, University of Washington, 3720 15 Ave NE, Box 355061, Seattle, Washington 98195, United States
| | - Suzie H. Pun
- Department of Bioengineering, University of Washington, 3720 15 Ave NE, Box 355061, Seattle, Washington 98195, United States
- Molecular Engineering & Sciences Institute, University of Washington, 3720 15 Ave NE, Box 355061, Seattle, Washington 98195, United States
| | - Theresa M. Reineke
- Department of Chemistry, University of Minnesota, 207 Pleasant St. SE, Minneapolis, MN 55455
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Xu T, Wang S, Shao Z. Insight into Polycation Chain Length Affecting Transfection Efficiency by O-Methyl-Free N,N,N-Trimethyl Chitosans as Gene Carriers. Pharm Res 2013; 31:895-907. [DOI: 10.1007/s11095-013-1211-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2013] [Accepted: 09/12/2013] [Indexed: 11/28/2022]
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Buschmann MD, Merzouki A, Lavertu M, Thibault M, Jean M, Darras V. Chitosans for delivery of nucleic acids. Adv Drug Deliv Rev 2013; 65:1234-70. [PMID: 23872012 PMCID: PMC7103275 DOI: 10.1016/j.addr.2013.07.005] [Citation(s) in RCA: 141] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2012] [Revised: 05/22/2013] [Accepted: 07/05/2013] [Indexed: 01/19/2023]
Abstract
Alternatives to efficient viral vectors in gene therapy are desired because of their poor safety profiles. Chitosan is a promising non-viral nucleotide delivery vector because of its biocompatibility, biodegradability, low immunogenicity and ease of manufacturing. Since the transfection efficiency of chitosan polyplexes is relatively low compared to viral counterparts, there is an impetus to gain a better understanding of the structure-performance relationship. Recent progress in preparation and characterisation has enabled coupling analysis of chitosans structural parameters that has led to increased TE by tailoring of chitosan's structure. In this review, we summarize the recent advances that have lead to a more rational design of chitosan polyplexes. We present an integrated review of all major areas of chitosan-based transfection, including preparation, chitosan and polyplexes physicochemical characterisation, in vitro and in vivo assessment. In each, we present the obstacles to efficient transfection and the strategies adopted over time to surmount these impediments.
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Affiliation(s)
- Michael D Buschmann
- Dept. Chemical Engineering and Inst. Biomedical Engineering, Ecole Polytechnique, Montreal, QC, Canada.
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