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Fattahi N, Gorgannezhad L, Masoule SF, Babanejad N, Ramazani A, Raoufi M, Sharifikolouei E, Foroumadi A, Khoobi M. PEI-based functional materials: Fabrication techniques, properties, and biomedical applications. Adv Colloid Interface Sci 2024; 325:103119. [PMID: 38447243 DOI: 10.1016/j.cis.2024.103119] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2023] [Revised: 01/15/2024] [Accepted: 02/22/2024] [Indexed: 03/08/2024]
Abstract
Cationic polymers have recently attracted considerable interest as research breakthroughs for various industrial and biomedical applications. They are particularly interesting due to their highly positive charges, acceptable physicochemical properties, and ability to undergo further modifications, making them attractive candidates for biomedical applications. Polyethyleneimines (PEIs), as the most extensively utilized polymers, are one of the valuable and prominent classes of polycations. Owing to their flexible polymeric chains, broad molecular weight (MW) distribution, and repetitive structural units, their customization for functional composites is more feasible. The specific beneficial attributes of PEIs could be introduced by purposeful functionalization or modification, long service life, biocompatibility, and distinct geometry. Therefore, PEIs have significant potential in biotechnology, medicine, and bioscience. In this review, we present the advances in PEI-based nanomaterials, their transfection efficiency, and their toxicity over the past few years. Furthermore, the potential and suitability of PEIs for various applications are highlighted and discussed in detail. This review aims to inspire readers to investigate innovative approaches for the design and development of next-generation PEI-based nanomaterials possessing cutting-edge functionalities and appealing characteristics.
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Affiliation(s)
- Nadia Fattahi
- Drug Design and Development Research Center, The Institute of Pharmaceutical Sciences (TIPS), Tehran University of Medical Sciences, Tehran 1417614411, Iran; Department of Chemistry, Faculty of Science, University of Zanjan, Zanjan 45371-38791, Iran
| | - Lena Gorgannezhad
- Queensland Micro- and Nanotechnology Centre, Nathan Campus, Griffith University, 170 Kessels Road, Brisbane, QLD 4111, Australia
| | - Shabnam Farkhonde Masoule
- Drug Design and Development Research Center, The Institute of Pharmaceutical Sciences (TIPS), Tehran University of Medical Sciences, Tehran 1417614411, Iran
| | - Niloofar Babanejad
- College of Pharmacy, Nova Southeastern University, Fort Lauderdale, FL, USA
| | - Ali Ramazani
- Department of Chemistry, Faculty of Science, University of Zanjan, Zanjan 45371-38791, Iran.
| | - Mohammad Raoufi
- Nanotechnology Research Center, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran 13169-43551, Iran
| | - Elham Sharifikolouei
- Department of Applied Science and Technology, Politecnico di Torino, Corso Duca Degli Abruzzi 24, 10129, Turin (TO), Italy
| | - Alireza Foroumadi
- Drug Design and Development Research Center, The Institute of Pharmaceutical Sciences (TIPS), Tehran University of Medical Sciences, Tehran 1417614411, Iran; Department of Medicinal Chemistry, Faculty of Pharmacy, Tehran University of Medical Science, Tehran, Iran
| | - Mehdi Khoobi
- Drug Design and Development Research Center, The Institute of Pharmaceutical Sciences (TIPS), Tehran University of Medical Sciences, Tehran 1417614411, Iran; Department of Radiopharmacy, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran.
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Mahajan K, Bhattacharya S. The Advancement and Obstacles in Improving the Stability of Nanocarriers for Precision Drug Delivery in the Field of Nanomedicine. Curr Top Med Chem 2024; 24:686-721. [PMID: 38409730 DOI: 10.2174/0115680266287101240214071718] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2023] [Revised: 01/19/2024] [Accepted: 01/23/2024] [Indexed: 02/28/2024]
Abstract
Nanocarriers have emerged as a promising class of nanoscale materials in the fields of drug delivery and biomedical applications. Their unique properties, such as high surface area- tovolume ratios and enhanced permeability and retention effects, enable targeted delivery of therapeutic agents to specific tissues or cells. However, the inherent instability of nanocarriers poses significant challenges to their successful application. This review highlights the importance of nanocarrier stability in biomedical applications and its impact on biocompatibility, targeted drug delivery, long shelf life, drug delivery performance, therapeutic efficacy, reduced side effects, prolonged circulation time, and targeted delivery. Enhancing nanocarrier stability requires careful design, engineering, and optimization of physical and chemical parameters. Various strategies and cutting-edge techniques employed to improve nanocarrier stability are explored, with a focus on their applications in drug delivery. By understanding the advances and challenges in nanocarrier stability, this review aims to contribute to the development and implementation of nanocarrier- based therapies in clinical settings, advancing the field of nanomedicine.
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Affiliation(s)
- Kalpesh Mahajan
- Department of Quality Assurence, Shobhaben Pratapbhai Patel School of Pharmacy and Technology Management, SVKM'S NMIMS, V.L. Mehta Road, Vile Parle (W), Mumbai, India
| | - Sankha Bhattacharya
- Department of Pharmaceutics, School of Pharmacy and Technology Management, SVKMS NMIMS Maharashtra, Shirpur, 425405, India
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Aono R, Nomura K, Yuba E, Harada A. Reversible Stabilization of Nanofiber-Polyplexes through Introducing Cross-Linkages. J Funct Biomater 2023; 15:14. [PMID: 38248681 PMCID: PMC10817492 DOI: 10.3390/jfb15010014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2023] [Revised: 12/27/2023] [Accepted: 12/28/2023] [Indexed: 01/23/2024] Open
Abstract
Non-viral gene delivery systems are typically designed vector systems with contradictory properties, namely sufficient stability before cellular uptake and instability to ensure the release of nucleic acid cargoes in the transcription process after being taken up into cells. We reported previously that poly-(L-lysine) terminally bearing a multi-arm PEG (maPEG-PLL) formed nanofiber-polyplexes that suppressed excessive DNA condensation via steric repulsion among maPEGs and exhibited effective transcriptional capability in PCR amplification experiments and a cell-free gene expression system. In this study, the reversible stabilization of a nanofiber-polyplex without impairing the effective transcriptional capability was investigated by introducing cross-links between the PLL side chains within the polyplex using a cross-linking reagent with disulfide (SS) bonds that can be disrupted under reducing conditions. In the presence of dextran sulfate and/or dithiothreitol, the stability of the polyplex and the reactivity of the pDNA were evaluated using agarose gel electrophoresis and real-time PCR. We succeeded in reversibly stabilizing nanofiber-polyplexes using dithiobis (succinimidyl propionate) (DSP) as the cross-linking reagent. The effect of the reversible stabilization was confirmed in experiments using cultured cells, and the DSP-crosslinked polyplexes exhibited gene expression superior to that of polyethyleneimine polyplexes, which are typical polyplexes.
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Affiliation(s)
- Ryuta Aono
- Department of Applied Chemistry, Graduate School of Engineering, Osaka Prefecture University, 1-1 Gakuen-cho, Sakai 599-8531, Osaka, Japan
| | - Kenta Nomura
- Department of Applied Chemistry, Graduate School of Engineering, Osaka Prefecture University, 1-1 Gakuen-cho, Sakai 599-8531, Osaka, Japan
| | - Eiji Yuba
- Department of Applied Chemistry, Graduate School of Engineering, Osaka Prefecture University, 1-1 Gakuen-cho, Sakai 599-8531, Osaka, Japan
- Department of Applied Chemistry, Graduate School of Engineering, Osaka Metropolitan University, 1-1 Gakuen-cho, Sakai 599-8531, Osaka, Japan
| | - Atsushi Harada
- Department of Applied Chemistry, Graduate School of Engineering, Osaka Prefecture University, 1-1 Gakuen-cho, Sakai 599-8531, Osaka, Japan
- Department of Applied Chemistry, Graduate School of Engineering, Osaka Metropolitan University, 1-1 Gakuen-cho, Sakai 599-8531, Osaka, Japan
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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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Mousazadeh H, Pilehvar-Soltanahmadi Y, Dadashpour M, Zarghami N. Cyclodextrin based natural nanostructured carbohydrate polymers as effective non-viral siRNA delivery systems for cancer gene therapy. J Control Release 2021; 330:1046-1070. [DOI: 10.1016/j.jconrel.2020.11.011] [Citation(s) in RCA: 39] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2020] [Revised: 11/04/2020] [Accepted: 11/06/2020] [Indexed: 12/12/2022]
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Bioreducible crosslinked cationic nanopolyplexes from clickable polyethylenimines enabling robust cancer gene therapy. NANOMEDICINE-NANOTECHNOLOGY BIOLOGY AND MEDICINE 2019; 24:102144. [PMID: 31838150 DOI: 10.1016/j.nano.2019.102144] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/01/2019] [Revised: 11/13/2019] [Accepted: 12/03/2019] [Indexed: 02/07/2023]
Abstract
Bioreducible crosslinked polyplexes from branched polyethylenimine (BPEI, 10 kDa) were successfully constructed through DNA neutralization by disulfide-linked azidated BPEI (PAZ) and subsequent DNA condensation by azadibenzocyclooctyne-modified BPEI (PDB), following their self-crosslinking via azide-azadibenzocyclooctyne click chemistry. Click-crosslinked cationic polyplexes (c-polyplexes) revealed high extracellular colloidal stability against negative heparin and ions while intracellular bioreducible degradability for efficient gene unpacking. In vitro gene transfection in cancer cells indicated that the c-polyplexes produced markedly higher transfection efficiency than non-crosslinked counterparts in the serum. The c-polyplexes also had prolonged circulation kinetics, elevated gene accumulation level in SKOV-3 tumor xenografted in a mouse model and in turn superior transgene expression in the tumor. By small hairpin RNA for VEGF silencing, the c-polyplexes exerted significant tumor growth inhibition following with low systemic toxicity in the mouse. This study highlights the design of clickable polycations to construct crosslinked cationic nanopolyplexes for intravenous gene delivery against cancer.
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Ulkoski D, Bak A, Wilson JT, Krishnamurthy VR. Recent advances in polymeric materials for the delivery of RNA therapeutics. Expert Opin Drug Deliv 2019; 16:1149-1167. [PMID: 31498013 DOI: 10.1080/17425247.2019.1663822] [Citation(s) in RCA: 47] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Introduction: The delivery of nucleic acid therapeutics through non-viral carriers face multiple biological barriers that reduce their therapeutic efficiency. Despite great progress, there remains a significant technological gap that continues to limit clinical translation of these nanocarriers. A number of polymeric materials are being exploited to efficiently deliver nucleic acids and achieve therapeutic effects. Areas covered: We discuss the recent advances in the polymeric materials for the delivery of nucleic acid therapeutics. We examine the use of common polymer architectures and highlight the challenges that exist for their development from bench side to clinic. We also provide an overview of the most notable improvements made to circumvent such challenges, including structural modification and stimuli-responsive approaches, for safe and effective nucleic acid delivery. Expert opinion: It has become apparent that a universal carrier that follows 'one-size' fits all model cannot be expected for delivery of all nucleic acid therapeutics. Carriers need to be designed to exhibit sensitivity and specificity toward individual targets diseases/indications, and relevant subcellular compartments, each of which possess their own unique challenges. The ability to devise synthetic methods that control the molecular architecture enables the future development that allow for the construction of 'intelligent' designs.
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Affiliation(s)
- David Ulkoski
- Advanced Drug Delivery, Pharmaceutical Sciences, R&D, AstraZeneca , Boston , USA
| | - Annette Bak
- Advanced Drug Delivery, Pharmaceutical Sciences, R&D, AstraZeneca , Gothenburg , Sweden
| | - John T Wilson
- Department of Chemical and Biomolecular Engineering, Vanderbilt University , Nashville , TN , USA
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Wang H, Ding S, Zhang Z, Wang L, You Y. Cationic micelle: A promising nanocarrier for gene delivery with high transfection efficiency. J Gene Med 2019; 21:e3101. [PMID: 31170324 DOI: 10.1002/jgm.3101] [Citation(s) in RCA: 51] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2019] [Revised: 05/25/2019] [Accepted: 05/29/2019] [Indexed: 12/15/2022] Open
Abstract
Micelles have demonstrated an excellent ability to deliver several different types of therapeutic agents, including chemotherapy drugs, proteins, small-interfering RNA and DNA, into tumor cells. Cationic micelles, comprising self-assemblies of amphiphilic cationic polymers, have exhibited tremendous promise with respect to the delivery of therapy genes and gene transfection. To date, research in the field has focused on achieving an enhanced stability of the micellar assembly, prolonged circulation times and controlled release of the gene. This review focuses on the micelles as a nanosized carrier system for gene delivery, the system-related modifications for cytoplasm release, stability and biocompatibility, and clinic trials. In accordance with the development of synthetic chemistry and self-assembly technology, the structures and functionalities of micelles can be precisely controlled, and hence the synthetic micelles not only efficiently condense DNA, but also facilitate DNA endocytosis, endosomal escape, DNA uptake and nuclear transport, resulting in a comparable gene transfection of virus.
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Affiliation(s)
- Haili Wang
- CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei, Anhui, China
| | - Shenggang Ding
- Department of Pediatrics, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China
| | - Ze Zhang
- CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei, Anhui, China
| | - Longhai Wang
- CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei, Anhui, China
| | - Yezi You
- CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei, Anhui, China
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Hager S, Wagner E. Bioresponsive polyplexes - chemically programmed for nucleic acid delivery. Expert Opin Drug Deliv 2018; 15:1067-1083. [PMID: 30247975 DOI: 10.1080/17425247.2018.1526922] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
INTRODUCTION The whole delivery process of nucleic acids is very challenging. Appropriate carrier systems are needed, which show extracellular stability and intracellular disassembly. Viruses have developed various strategies to meet these requirements, as they are optimized by biological evolution to transfer genetic information into host cells. Taking viruses as models, smart synthetic carriers can be designed, mimicking the efficient delivery process of viral infection. These 'synthetic viruses' are pre-programmed and respond to little differences in their microenvironment, caused by either exogenous or endogenous stimuli. AREAS COVERED This review deals with polymer-based, bioresponsive nanosystems (polyplexes) for the delivery of nucleic acids. Strategies utilizing pH-responsiveness, redox-responsiveness as well as sensitivity towards enzymes will be described more in detail. Systems, which respond to other endogenous triggers (i.e. reactive oxygen species, adenosine triphosphate, hypoxia), will be briefly illustrated. Moreover, some examples for combined bioresponsiveness will be presented. EXPERT OPINION Bioresponsive polyplexes are a smart way to facilitate programmed, timely delivery of nucleic acids to desired, specific sites. Nevertheless, further optimization is necessary to improve the still moderate transfection efficiency and specificity - also in regard to medical translation. For this purpose, precise carrier structures are desirable and stability issues of bioresponsive systems must be considered.
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Affiliation(s)
- Simone Hager
- a Pharmaceutical Biotechnology, Department of Pharmacy , Ludwig-Maximilians-Universität , Munich , Germany
| | - Ernst Wagner
- a Pharmaceutical Biotechnology, Department of Pharmacy , Ludwig-Maximilians-Universität , Munich , Germany
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Abstract
Recently greater emphasis has been given to combination therapy for generating synergistic effects of treating cancer. Recent studies on thiol-sensitive nanocarriers for the delivery of drug or gene have shown promising results. In this review, we will examine the rationale and advantage in using nanocarriers for the combined delivery of different anticancer drugs and biologics. Here, we also discuss the role of nanocarriers, particularly redox-sensitive polymers in evading or inhibiting the efflux pump in cancer and how they modulate the sensitivity of cancer cells. The review aims to provide a good understanding of the new pattern of cancer treatment and key concerns for designing nanomedicine of synergistic combinations for cancer therapy.
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Sun M, Wang K, Oupický D. Advances in Stimulus-Responsive Polymeric Materials for Systemic Delivery of Nucleic Acids. Adv Healthc Mater 2018; 7:10.1002/adhm.201701070. [PMID: 29227047 PMCID: PMC5821579 DOI: 10.1002/adhm.201701070] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2017] [Revised: 10/13/2017] [Indexed: 01/02/2023]
Abstract
Polymeric materials that respond to a variety of endogenous and external stimuli are actively developed to overcome the main barriers to successful systemic delivery of therapeutic nucleic acids. Here, an overview of viable stimuli that are proved to improve systemic delivery of nucleic acids is provided. The main focus is placed on nucleic acid delivery systems (NADS) based on polymers that respond to pathological or physiological changes in pH, redox state, enzyme levels, hypoxia, and reactive oxygen species levels. Additional discussion is focused on NADS suitable for applications that use external stimuli, such as light, ultrasound, and local hyperthermia.
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Affiliation(s)
- Minjie Sun
- State Key Laboratory of Natural Medicines, Key Laboratory on Protein Chemistry and Structural Biology, Department of Pharmaceutics, China Pharmaceutical University, Nanjing, 210009, P.R. China
| | - Kaikai Wang
- State Key Laboratory of Natural Medicines, Key Laboratory on Protein Chemistry and Structural Biology, Department of Pharmaceutics, China Pharmaceutical University, Nanjing, 210009, P.R. China
| | - David Oupický
- State Key Laboratory of Natural Medicines, Key Laboratory on Protein Chemistry and Structural Biology, Department of Pharmaceutics, China Pharmaceutical University, Nanjing, 210009, P.R. China
- Center for Drug Delivery and Nanomedicine, Department of Pharmaceutical Sciences, University of Nebraska Medical Center, Omaha, NE 68198, United States
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Chen Y, Li J, Oupický D. Conjugate Polyplexes with Anti-Invasive Properties and Improved siRNA Delivery In Vivo. Bioconjug Chem 2018; 29:296-305. [PMID: 29338191 DOI: 10.1021/acs.bioconjchem.7b00622] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
This study reports on a simple method to prepare siRNA-polycation conjugate polyplexes by in situ thiol-disulfide exchange reaction. The conjugate polyplexes are prepared using thiol-terminated siRNA and a bioreducible branched polycationic inhibitor of the CXCR4 chemokine receptor (rPAMD). The rPAMD-SS-siRNA conjugate polyplexes exhibit improved colloidal stability and resistance against disassembly with heparin, serum, and physiological salt concentrations when compared with control conventional rPAMD/siRNA polyplexes. Coating the polyplexes with human serum albumin masks the positive surface charge and contributes to the enhanced in vitro gene silencing and improved safety in vivo. The conjugate polyplexes display improved in vivo reporter gene silencing following intravenous injection in tumor-bearing mice. Because the conjugate polyplexes retained the ability of rPAMD to inhibit CXCR4 and restrict cancer cell invasion, the developed systems show promise for future combination anti-metastatic siRNA therapies of cancer.
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Affiliation(s)
- Yi Chen
- Center for Drug Delivery and Nanomedicine, Department of Pharmaceutical Sciences, University of Nebraska Medical Center , Omaha, Nebraska 68198, United States
| | - Jing Li
- Center for Drug Delivery and Nanomedicine, Department of Pharmaceutical Sciences, University of Nebraska Medical Center , Omaha, Nebraska 68198, United States
| | - David Oupický
- Center for Drug Delivery and Nanomedicine, Department of Pharmaceutical Sciences, University of Nebraska Medical Center , Omaha, Nebraska 68198, United States
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Wu M, Li J, Lin X, Wei Z, Zhang D, Zhao B, Liu X, Liu J. Reduction/photo dual-responsive polymeric prodrug nanoparticles for programmed siRNA and doxorubicin delivery. Biomater Sci 2018; 6:1457-1468. [PMID: 29770812 DOI: 10.1039/c8bm00226f] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
A reduction/photo dual-responsive nanosystem for programmed P-gp siRNA and doxorubicin release was designed to optimize the efficacy of chemotherapy against multidrug resistance of cancer cells.
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Affiliation(s)
- Ming Wu
- The United Innovation of Mengchao Hepatobiliary Technology Key Laboratory of Fujian Province
- Mengchao Hepatobiliary Hospital of Fujian Medical University
- Fuzhou 350025
- P.R. China
- The Liver Center of Fujian Province
| | - Jiong Li
- The United Innovation of Mengchao Hepatobiliary Technology Key Laboratory of Fujian Province
- Mengchao Hepatobiliary Hospital of Fujian Medical University
- Fuzhou 350025
- P.R. China
- The Liver Center of Fujian Province
| | - Xinyi Lin
- The United Innovation of Mengchao Hepatobiliary Technology Key Laboratory of Fujian Province
- Mengchao Hepatobiliary Hospital of Fujian Medical University
- Fuzhou 350025
- P.R. China
- The Liver Center of Fujian Province
| | - Zuwu Wei
- The United Innovation of Mengchao Hepatobiliary Technology Key Laboratory of Fujian Province
- Mengchao Hepatobiliary Hospital of Fujian Medical University
- Fuzhou 350025
- P.R. China
- The Liver Center of Fujian Province
| | - Da Zhang
- The United Innovation of Mengchao Hepatobiliary Technology Key Laboratory of Fujian Province
- Mengchao Hepatobiliary Hospital of Fujian Medical University
- Fuzhou 350025
- P.R. China
- The Liver Center of Fujian Province
| | - Bixing Zhao
- The United Innovation of Mengchao Hepatobiliary Technology Key Laboratory of Fujian Province
- Mengchao Hepatobiliary Hospital of Fujian Medical University
- Fuzhou 350025
- P.R. China
- The Liver Center of Fujian Province
| | - Xiaolong Liu
- The United Innovation of Mengchao Hepatobiliary Technology Key Laboratory of Fujian Province
- Mengchao Hepatobiliary Hospital of Fujian Medical University
- Fuzhou 350025
- P.R. China
- The Liver Center of Fujian Province
| | - Jingfeng Liu
- The United Innovation of Mengchao Hepatobiliary Technology Key Laboratory of Fujian Province
- Mengchao Hepatobiliary Hospital of Fujian Medical University
- Fuzhou 350025
- P.R. China
- The Liver Center of Fujian Province
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14
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Appelbe OK, Kim BK, Rymut N, Wang J, Kron SJ, Yeo Y. Radiation-enhanced delivery of plasmid DNA to tumors utilizing a novel PEI polyplex. Cancer Gene Ther 2017; 25:196-206. [PMID: 29255216 PMCID: PMC6008165 DOI: 10.1038/s41417-017-0004-z] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2017] [Revised: 08/18/2017] [Accepted: 08/23/2017] [Indexed: 01/17/2023]
Abstract
The excitement surrounding the potential of gene therapy has been tempered due to the challenges that have thus far limited its successful implementation in the clinic such as issues regarding stability, transfection efficiency, and toxicity. In this study, low molecular weight linear polyethyleneimine (2.5 kDa) was modified by conjugation to a lipid, lithocholic acid, and complexed with a natural polysaccharide, dermatan sulfate (DS), to mask extra cationic charges of the modified polymer. In vitro examination revealed that these modifications improved complex stability with plasmid DNA (pDNA) and transfection efficiency. This novel ternary polyplex (pDNA/3E/DS) was used to investigate if tumor-targeted radiotherapy led to enhanced accumulation and retention of gene therapy vectors in vivo in tumor-bearing mice. Imaging of biodistribution revealed that tumor irradiation led to increased accumulation and retention as well as decreased off-target tissue buildup of pDNA in not only pDNA/3E/DS, but also in associated PEI-based polyplexes and commercial DNA delivery vehicles. The DS-containing complexes developed in this study displayed the greatest increase in tumor-specific pDNA delivery. These findings demonstrate a step forward in nucleic acid vehicle design as well as a promising approach to overall cancer gene therapy through utilization of radiotherapy as a tool for enhanced delivery.
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Affiliation(s)
- Oliver K Appelbe
- Ludwig Center for Metastasis Research, The University of Chicago, 5758 South Maryland Avenue, MC 9006, Chicago, IL, 60637, USA.,Department of Molecular Genetics and Cellular Biology, The University of Chicago, 929 East 57th Street, GCIS W519, Chicago, IL, 60637, USA
| | - Bieong-Kil Kim
- Department of Industrial and Physical Pharmacy, Purdue University, 575 Stadium Mall Dr., West Lafayette, IN, 47907, USA
| | - Nick Rymut
- Ludwig Center for Metastasis Research, The University of Chicago, 5758 South Maryland Avenue, MC 9006, Chicago, IL, 60637, USA.,Department of Molecular Genetics and Cellular Biology, The University of Chicago, 929 East 57th Street, GCIS W519, Chicago, IL, 60637, USA
| | - Jianping Wang
- Department of Industrial and Physical Pharmacy, Purdue University, 575 Stadium Mall Dr., West Lafayette, IN, 47907, USA.,Department of Pharmaceutics, State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, China
| | - Stephen J Kron
- Ludwig Center for Metastasis Research, The University of Chicago, 5758 South Maryland Avenue, MC 9006, Chicago, IL, 60637, USA. .,Department of Molecular Genetics and Cellular Biology, The University of Chicago, 929 East 57th Street, GCIS W519, Chicago, IL, 60637, USA.
| | - Yoon Yeo
- Department of Industrial and Physical Pharmacy, Purdue University, 575 Stadium Mall Dr., West Lafayette, IN, 47907, USA.,Weldon School of Biomedical Engineering, Purdue University, West Lafayette, IN, 47907, USA
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15
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Staegemann MH, Gräfe S, Gitter B, Achazi K, Quaas E, Haag R, Wiehe A. Hyperbranched Polyglycerol Loaded with (Zinc-)Porphyrins: Photosensitizer Release Under Reductive and Acidic Conditions for Improved Photodynamic Therapy. Biomacromolecules 2017; 19:222-238. [DOI: 10.1021/acs.biomac.7b01485] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- Michael H. Staegemann
- Institut
für Chemie und Biochemie, Freie Universität Berlin, Takustr. 3, D-14195 Berlin, Germany
- Biolitec Research GmbH, Otto-Schott-Str.
15, D-07745 Jena, Germany
| | - Susanna Gräfe
- Biolitec Research GmbH, Otto-Schott-Str.
15, D-07745 Jena, Germany
| | - Burkhard Gitter
- Biolitec Research GmbH, Otto-Schott-Str.
15, D-07745 Jena, Germany
| | - Katharina Achazi
- Institut
für Chemie und Biochemie, Freie Universität Berlin, Takustr. 3, D-14195 Berlin, Germany
| | - Elisa Quaas
- Institut
für Chemie und Biochemie, Freie Universität Berlin, Takustr. 3, D-14195 Berlin, Germany
| | - Rainer Haag
- Institut
für Chemie und Biochemie, Freie Universität Berlin, Takustr. 3, D-14195 Berlin, Germany
| | - Arno Wiehe
- Institut
für Chemie und Biochemie, Freie Universität Berlin, Takustr. 3, D-14195 Berlin, Germany
- Biolitec Research GmbH, Otto-Schott-Str.
15, D-07745 Jena, Germany
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16
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Heller P, Hobernik D, Lächelt U, Schinnerer M, Weber B, Schmidt M, Wagner E, Bros M, Barz M. Combining reactive triblock copolymers with functional cross-linkers: A versatile pathway to disulfide stabilized-polyplex libraries and their application as pDNA vaccines. J Control Release 2017; 258:146-160. [DOI: 10.1016/j.jconrel.2017.05.012] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2017] [Revised: 05/02/2017] [Accepted: 05/10/2017] [Indexed: 02/06/2023]
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17
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Ullah I, Muhammad K, Akpanyung M, Nejjari A, Neve AL, Guo J, Feng Y, Shi C. Bioreducible, hydrolytically degradable and targeting polymers for gene delivery. J Mater Chem B 2017; 5:3253-3276. [PMID: 32264392 DOI: 10.1039/c7tb00275k] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Recently, synthetic gene carriers have been intensively developed owing to their promising application in gene therapy and considered as a suitable alternative to viral vectors because of several benefits. But cationic polymers still face some problems like low transfection efficiency, cytotoxicity, and poor cell recognition and internalization. The emerging engineered and smart polymers can respond to some changes in the biological environment like pH change, ionic strength change and redox potential, which is beneficial for cellular uptake. Redox-sensitive disulfide based and hydrolytically degradable cationic polymers serve as gene carriers with excellent transfection efficiency and good biocompatibility owing to degradation in the cytoplasm. Additionally, biodegradable polymeric micelles with cell-targeting function are recently emerging gene carriers, especially for the transfection of endothelial cells. In this review, some strategies for gene carriers based on these bioreducible and hydrolytically degradable polymers will be illustrated.
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Affiliation(s)
- Ihsan Ullah
- School of Chemical Engineering and Technology, Tianjin University, Yaguan Road 135, Tianjin 300350, China.
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18
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Cheng Y, Sellers DL, Tan JKY, Peeler DJ, Horner PJ, Pun SH. Development of switchable polymers to address the dilemma of stability and cargo release in polycationic nucleic acid carriers. Biomaterials 2017; 127:89-96. [PMID: 28284104 DOI: 10.1016/j.biomaterials.2017.02.036] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2016] [Revised: 02/15/2017] [Accepted: 02/26/2017] [Indexed: 10/20/2022]
Abstract
Cationic polymer gene delivery vehicles that effectively resist premature serum degradation often have difficulty releasing their nucleic acid cargoes. In this work, we report a pH-sensitive polymer (SP), poly(oligo(ethylene glycol) monomethyl ether methacrylate)-co-poly(2-(dimethylamino)ethyl methacrylate)-block- poly(propargyl methacrylate-graft-propyl-(4-methoxy-benzylidene)-amine) (p(PMA-PMBA)-b-(p(OEGMA-DMAEMA)), for successful in vitro and in vivo gene transfer. In the physiological condition, the hydrophobization of p(OEGMA-DMAEMA) polycations by p(PMA-PMBA) significantly enhanced the stability of its polyplexes counterpart. In endosomes, the polymer undergoes an acid-triggered hydrophilic transition through the cleavage of benzoic imines, thus allowing the vector to quickly release nucleic acid cargo due to the loss of hydrophobic functionalization. Compared to a pH-insensitive polymer (IP), SP exhibited more significant luciferase plasmid delivery efficiency with HeLa cells in vitro and with in vivo intraventricular brain injections. Therefore, the polymer designed here is a good solution to address the dilemma of stability and cargo release in gene delivery, and may have broad potential applications in therapeutic agent delivery.
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Affiliation(s)
- Yilong Cheng
- Department of Bioengineering and Molecular Engineering & Sciences Institute, University of Washington, Seattle, WA 98195, United States
| | - Drew L Sellers
- Department of Bioengineering and Molecular Engineering & Sciences Institute, University of Washington, Seattle, WA 98195, United States
| | - James-Kevin Y Tan
- Department of Bioengineering and Molecular Engineering & Sciences Institute, University of Washington, Seattle, WA 98195, United States
| | - David J Peeler
- Department of Bioengineering and Molecular Engineering & Sciences Institute, University of Washington, Seattle, WA 98195, United States
| | - Philip J Horner
- Center for Neuroregeneration and Department of Neurosurgery, Houston Methodist Research Institute, Houston, TX 77030, United States.
| | - Suzie H Pun
- Department of Bioengineering and Molecular Engineering & Sciences Institute, University of Washington, Seattle, WA 98195, United States.
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19
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Affiliation(s)
- Mingming Zhang
- Tianjin Key Laboratory of Biomedical Materials, Institute of Biomedical Engineering, Chinese Academy of Medical Sciences & Peking Union Medical College, 236 Baidi Road, Nankai District, Tianjin 300192, China
| | - Yanhang Hong
- Tianjin Key Laboratory of Biomedical Materials, Institute of Biomedical Engineering, Chinese Academy of Medical Sciences & Peking Union Medical College, 236 Baidi Road, Nankai District, Tianjin 300192, China
| | - Wenjuan Chen
- Tianjin Key Laboratory of Biomedical Materials, Institute of Biomedical Engineering, Chinese Academy of Medical Sciences & Peking Union Medical College, 236 Baidi Road, Nankai District, Tianjin 300192, China
| | - Chun Wang
- Department
of Biomedical Engineering, University of Minnesota, 7-105 Hasselmo
Hall, 312 Church Street S. E., Minneapolis, Minnesota 55455, United States
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20
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Wang J, Xue P, Zhou J, Li L, Xu L, Wang Y. Comparison of two kinds of docetaxel-vitamin E prodrugs: In vitro evaluation and in vivo antitumor activity. Int J Pharm 2016; 505:352-60. [DOI: 10.1016/j.ijpharm.2016.03.057] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2016] [Revised: 03/24/2016] [Accepted: 03/28/2016] [Indexed: 11/29/2022]
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21
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Cai X, Jin R, Wang J, Yue D, Jiang Q, Wu Y, Gu Z. Bioreducible Fluorinated Peptide Dendrimers Capable of Circumventing Various Physiological Barriers for Highly Efficient and Safe Gene Delivery. ACS APPLIED MATERIALS & INTERFACES 2016; 8:5821-5832. [PMID: 26887907 DOI: 10.1021/acsami.5b11545] [Citation(s) in RCA: 82] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Polymeric vectors have shown great promise in the development of safe and efficient gene delivery systems; however, only a few have been developed in clinical settings due to poor transport across multiple physiological barriers. To address this issue and promote clinical translocation of polymeric vectors, a new type of polymeric vector, bioreducible fluorinated peptide dendrimers (BFPDs), was designed and synthesized by reversible cross-linking of fluorinated low generation peptide dendrimers. Through masterly integration all of the features of reversible cross-linking, fluorination, and polyhedral oligomeric silsesquioxane (POSS) core-based peptide dendrimers, this novel vector exhibited lots of unique features, including (i) inactive surface to resist protein interactions; (ii) virus-mimicking surface topography to augment cellular uptake; (iii) fluorination-mediated efficient cellular uptake, endosome escape, cytoplasm trafficking, and nuclear entry, and (iv) disulfide-cleavage-mediated polyplex disassembly and DNA release that allows efficient DNA transcription. Noteworthy, all of these features are functionally important and can synergistically facilitate DNA transport from solution to the nucleus. As a consequences, BFPDs showed excellent gene transfection efficiency in several cell lines (∼95% in HEK293 cells) and superior biocompatibility compared with polyethylenimine (PEI). Meanwhile BFPDs provided excellent serum resistance in gene delivery. More importantly, BFPDs offer considerable in vivo gene transfection efficiency (in muscular tissues and in HepG2 tumor xenografts), which was approximately 77-fold higher than that of PEI in luciferase activity. These results suggest bioreducible fluorinated peptide dendrimers are a new class of highly efficient and safe gene delivery vectors and should be used in clinical settings.
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Affiliation(s)
- Xiaojun Cai
- National Engineering Research Center for Biomaterials, Sichuan University , Chengdu, Sichuan 610064, P. R. China
| | - Rongrong Jin
- National Engineering Research Center for Biomaterials, Sichuan University , Chengdu, Sichuan 610064, P. R. China
| | - Jiali Wang
- National Engineering Research Center for Biomaterials, Sichuan University , Chengdu, Sichuan 610064, P. R. China
| | - Dong Yue
- National Engineering Research Center for Biomaterials, Sichuan University , Chengdu, Sichuan 610064, P. R. China
| | - Qian Jiang
- National Engineering Research Center for Biomaterials, Sichuan University , Chengdu, Sichuan 610064, P. R. China
| | - Yao Wu
- National Engineering Research Center for Biomaterials, Sichuan University , Chengdu, Sichuan 610064, P. R. China
| | - Zhongwei Gu
- National Engineering Research Center for Biomaterials, Sichuan University , Chengdu, Sichuan 610064, P. R. China
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22
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Won YW, Ankoné M, Engbersen JFJ, Feijen J, Kim SW. Poly(Amido Amine)s Containing Agmatine and Butanol Side Chains as Efficient Gene Carriers. Macromol Biosci 2015; 16:619-26. [PMID: 26663734 DOI: 10.1002/mabi.201500369] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2015] [Revised: 11/03/2015] [Indexed: 12/28/2022]
Abstract
A new type of bioreducible poly(amido amine) copolymer is synthesized by the Michael addition polymerization of cystamine bisacrylamide (CBA) with 4-aminobutylguanidine (agmatine, AGM) and 4-aminobutanol (ABOL). Since the positively charged guanidinium groups of AGM and the hydroxybutyl groups of ABOL in the side chains have shown to improve the overall transfection efficiency of poly(amido amine)s, it is hypothesized that poly(CBA-ABOL/AGM) synthesized at the optimal ratio of both components would result in high transfection efficiency and minimal toxicity. In this study, a series of the poly(CBA-ABOL/AGM) copolymers is synthesized as gene carriers. The polymers are characterized and luciferase transfection efficiencies of the polymers in various cell lines are investigated to select the ideal ratio between AGM and ABOL. The poly(CBA-ABOL/AGM) containing 80% AGM and 20% ABOL has shown the best transfection efficiency with the lowest cytotoxicity, indicating that this polymer is very promising as a potent and nontoxic gene carrier.
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Affiliation(s)
- Young-Wook Won
- Department of Pharmaceutics and Pharmaceutical Chemistry, University of Utah, Salt Lake City, Utah, USA
- Division of Cardiothoracic Surgery, Department of Surgery, University of Utah School of Medicine, Salt Lake City, Utah, USA
| | - Marc Ankoné
- Department of Biomedical Chemistry, MIRA Institute for Biomedical Technology and Technical Medicine, Faculty of Science and Technology, University of Twente, Enschede, The Netherlands
| | - Johan F J Engbersen
- Department of Biomedical Chemistry, MIRA Institute for Biomedical Technology and Technical Medicine, Faculty of Science and Technology, University of Twente, Enschede, The Netherlands
| | - Jan Feijen
- Department of Biomedical Chemistry, MIRA Institute for Biomedical Technology and Technical Medicine, Faculty of Science and Technology, University of Twente, Enschede, The Netherlands
| | - Sung Wan Kim
- Department of Pharmaceutics and Pharmaceutical Chemistry, University of Utah, Salt Lake City, Utah, USA
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23
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Pofali PA, Singh B, Dandekar P, Jain RD, Maharjan S, Choi YJ, Arote RB, Cho CS. Drug-conjugated polymers as gene carriers for synergistic therapeutic effect. J Biomed Mater Res B Appl Biomater 2015; 104:698-711. [PMID: 26471335 DOI: 10.1002/jbm.b.33545] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2015] [Revised: 09/15/2015] [Accepted: 09/27/2015] [Indexed: 01/12/2023]
Abstract
The ability to safely and effectively transfer gene into cells is the fundamental goal of gene delivery. In spite of the best efforts of researchers around the world, gene therapy has limited success. This may be because of several limitations of delivering gene which is one of the greatest technical challenges in the modern medicine. To address these issues, many efforts have been made to bind drugs and genes together by polymers for co-delivery to achieve synergistic effect. Usually, binding interaction of drugs with polymers is either physical or chemical. In case of drug-polymer physical interaction, the efficiency of drugs generally decreases because of separation of drugs from polymers in vivo whenever it comes in contact with charged biofluid/s or cells. While chemical interaction of drug-polymer overcomes the aforementioned obstacle, several problems such as steric hindrance, solubility, and biodegradability hinder it to develop as gene carrier. Considering these benefits and pitfalls, the objective of this review is to discuss the possible extent of drug-conjugated polymers as safe and efficient gene delivery carriers for achieving synergistic effect to combat various genetic disorders.
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Affiliation(s)
- P A Pofali
- Department of Chemical Engineering, Institute of Chemical Technology, Mumbai, 400-019, India.,Department of Molecular Genetics and Dental Research Institute, School of Dentistry, Seoul National University, Seoul, 110-749, Republic of Korea
| | - B Singh
- Department of Agricultural Biotechnology and Research Institute for Agriculture and Life Sciences, Seoul National University, Seoul, 151-921, Republic of Korea
| | - P Dandekar
- Department of Pharmaceutical Sciences and Technology, Institute of Chemical Technology, Mumbai, 400-019, India
| | - R D Jain
- Department of Chemical Engineering, Institute of Chemical Technology, Mumbai, 400-019, India
| | - S Maharjan
- Department of Agricultural Biotechnology and Research Institute for Agriculture and Life Sciences, Seoul National University, Seoul, 151-921, Republic of Korea
| | - Y J Choi
- Department of Agricultural Biotechnology and Research Institute for Agriculture and Life Sciences, Seoul National University, Seoul, 151-921, Republic of Korea
| | - R B Arote
- Department of Molecular Genetics and Dental Research Institute, School of Dentistry, Seoul National University, Seoul, 110-749, Republic of Korea
| | - C S Cho
- Department of Agricultural Biotechnology and Research Institute for Agriculture and Life Sciences, Seoul National University, Seoul, 151-921, Republic of Korea
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24
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Germershaus O, Nultsch K. Localized, non-viral delivery of nucleic acids: Opportunities, challenges and current strategies. Asian J Pharm Sci 2015. [DOI: 10.1016/j.ajps.2014.10.001] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
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25
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Twin disulfides as opportunity for improving stability and transfection efficiency of oligoaminoethane polyplexes. J Control Release 2015; 205:109-19. [DOI: 10.1016/j.jconrel.2014.12.035] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2014] [Revised: 12/16/2014] [Accepted: 12/24/2014] [Indexed: 12/29/2022]
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26
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Hu H, Yuan W, Liu FS, Cheng G, Xu FJ, Ma J. Redox-responsive polycation-functionalized cotton cellulose nanocrystals for effective cancer treatment. ACS APPLIED MATERIALS & INTERFACES 2015; 7:8942-51. [PMID: 25845425 DOI: 10.1021/acsami.5b02432] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Carbon nanotubes have excellent penetrability and encapsulation efficiency in the fields of drug and gene delivery. Because of their excellent physicochemical properties, biocompatible rodlike cellulose nanocrystals (CNCs) were reportedly expected to replace carbon nanotubes. In this work, CNCs from natural cotton wool were functionalized with disulfide bond-linked poly(2-(dimethylamino)ethyl methacrylate) (PDMAEMA) brushes for effective biomedical applications. A range of CNC-graft-PDMAEMA vectors (termed as CNC-SS-PDs) with various molecular weights of PDMAEMA were synthesized. Under reducible conditions, PDMAEMA chains can be easily cleaved from CNCs. The gene condensation ability, reduction sensitivity, cytotoxicity, gene transfection, and in vivo antitumor activities of CNC-SS-PDs were investigated in detail. The CNC-SS-PDs exhibited good transfection efficiencies and low cytotoxicities. The needlelike shape of CNCs had an important effect on enhancing transfection efficiency. The antitumor effect of CNC-SS-PDs was evaluated by a suicide gene/prodrug system (cytosine deaminase/5-fluorocytosine, CD/5-FC) in vitro and in vivo. This research demonstrates that the functionalization of CNCs with redox-responsive polycations is an effective method for developing novel gene delivery systems.
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Affiliation(s)
- Hao Hu
- ‡Key Laboratory of Carbon Fiber and Functional Polymers (Beijing University of Chemical Technology), Ministry of Education, Beijing 100029, China
- §Beijing Laboratory of Biomedical Materials, Beijing University of Chemical Technology, Beijing 100029, China
| | - Wei Yuan
- ∥State Key Laboratory of Molecular Oncology, Cancer Hospital, Chinese Academy of Medical Sciences, Beijing 100021, China
| | - Fu-Sheng Liu
- ⊥Brain Tumor Research Center, Beijing Neurosurgical Institute, Beijing Tiantan Hospital affiliated with Capital Medical University, Beijing 100050, China
| | - Gang Cheng
- #Department of Chemical and Biomolecular Engineering, University of Akron, Akron, Ohio 44325, United States
| | - Fu-Jian Xu
- ‡Key Laboratory of Carbon Fiber and Functional Polymers (Beijing University of Chemical Technology), Ministry of Education, Beijing 100029, China
- §Beijing Laboratory of Biomedical Materials, Beijing University of Chemical Technology, Beijing 100029, China
| | - Jie Ma
- ∥State Key Laboratory of Molecular Oncology, Cancer Hospital, Chinese Academy of Medical Sciences, Beijing 100021, China
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27
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Chen Z, He Y, Zhang L, Li Y. Enhanced DNA release from disulfide-containing layered nanocomplexes by heparin-electrostatic competition. J Mater Chem B 2015; 3:225-237. [PMID: 32261943 DOI: 10.1039/c4tb01113a] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2024]
Abstract
Polycationic vectors are often used to deliver DNA for cancer therapies, but their inefficiency in releasing DNA from the polyplexes after endosomal escape limits DNA transcription and their efficient application in vivo. In this study, DNA/PEI polyplexes were cross-linked by a reduction-sensitive disulfide bond and then further complexed with electrostatic competitive heparin (HP) and hyaluronidase (HAase)-sensitive hyaluronate (HA) to obtain DNA/PEIS/HA-HP (DPSHA-HP). DPSHA-HP was stable in an extracellular environment (pH = 7.4) and degraded by HAase after targeted HA receptor CD44-mediated cell endocytosis, causing the outer shielding of the nanocomplex to loosen. The resulting partially exposed disulfide-linked DNA/PEI nanocomplexes efficiently ruptured the endosome, facilitating the cleavage of disulfide bonds and the release of DNA/PEI polyplexes into the cytoplasm, where DNA release from the polyplexes was remarkably enhanced due to strong electrostatic competition of HP with PEI. Consequently, DPSHA-HP exhibited excellent DNA transfection of the target cells, better than disulfide cross-linked DNA/PEI (25 kDa) and DNA/PEIS/HA. Moreover, these novel layered nanocomplexes have high efficiency in down-regulating B-cell-specific Moloney murine leukemia virus insertion site 1 (Bmi-1) and exhibit significant inhibition of tumor formation with minimal toxicity in a mouse tumor model.
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Affiliation(s)
- Zhenzhen Chen
- State Key Laboratory of Applied Organic Chemistry, Key Laboratory of Nonferrous Metals Chemistry and Resources Utilization of Gansu Province, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, China.
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28
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Sun L, Liu YJ, Yang ZZ, Qi XR. Tumor specific delivery with redox-triggered mesoporous silica nanoparticles inducing neovascularization suppression and vascular normalization. RSC Adv 2015. [DOI: 10.1039/c5ra09633b] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Redox-responsive mesoporous silica nanoparticles with enlarged pores (denoted as MSN-siRNA/CrPEI) were designed by immobilizing polyethylenimine (PEI)viaintermediate linkers of disulfide bonds onto the MSNs as caps for redox-responsive intracellular gene delivery.
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Affiliation(s)
- Lu Sun
- Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery System
- Peking University
- Beijing 100191
- China
- School of Pharmaceutical Sciences
| | - Yu-Jie Liu
- Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery System
- Peking University
- Beijing 100191
- China
- School of Pharmaceutical Sciences
| | - Zhen-Zhen Yang
- School of Pharmaceutical Sciences
- Peking University
- Beijing 100191
- China
| | - Xian-Rong Qi
- Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery System
- Peking University
- Beijing 100191
- China
- School of Pharmaceutical Sciences
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29
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Brülisauer L, Gauthier MA, Leroux JC. Disulfide-containing parenteral delivery systems and their redox-biological fate. J Control Release 2014; 195:147-54. [DOI: 10.1016/j.jconrel.2014.06.012] [Citation(s) in RCA: 131] [Impact Index Per Article: 13.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2014] [Revised: 06/06/2014] [Accepted: 06/09/2014] [Indexed: 12/21/2022]
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30
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Targeted siRNA therapy using cytoplasm-responsive nanocarriers and cell-penetrating peptides. JOURNAL OF PHARMACEUTICAL INVESTIGATION 2014. [DOI: 10.1007/s40005-014-0155-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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31
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Silk fibroin layer-by-layer microcapsules for localized gene delivery. Biomaterials 2014; 35:7929-39. [DOI: 10.1016/j.biomaterials.2014.05.062] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2014] [Accepted: 05/21/2014] [Indexed: 12/23/2022]
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32
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Stryjewska A, Kiepura K, Librowski T, Lochyński S. Biotechnology and genetic engineering in the new drug development. Part II. Monoclonal antibodies, modern vaccines and gene therapy. Pharmacol Rep 2014; 65:1086-101. [PMID: 24399705 DOI: 10.1016/s1734-1140(13)71467-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2012] [Revised: 05/13/2013] [Indexed: 12/01/2022]
Abstract
Monoclonal antibodies, modern vaccines and gene therapy have become a major field in modern biotechnology, especially in the area of human health and fascinating developments achieved in the past decades are impressive examples of an interdisciplinary interplay between medicine, biology and engineering. Among the classical products from cells one can find viral vaccines, monoclonal antibodies, and interferons, as well as recombinant therapeutic proteins. Gene therapy opens up challenging new areas. In this review, a definitions of these processes are given and fields of application and products, as well as the future prospects, are discussed.
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Affiliation(s)
- Agnieszka Stryjewska
- Department of Bioorganic Chemistry, Faculty of Chemistry, Wrocław University of Technology, Wyb. Wyspiańskiego 27, PL 50-370 Wrocław, Poland. ;
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33
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Ding X, Wang W, Wang Y, Bao X, Wang Y, Wang C, Chen J, Zhang F, Zhou J. Versatile Reticular Polyethylenimine Derivative-Mediated Targeted Drug and Gene Codelivery for Tumor Therapy. Mol Pharm 2014; 11:3307-21. [DOI: 10.1021/mp5001263] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Xuefang Ding
- State
Key Laboratory of Natural Medicines, Department of Pharmaceutics, China Pharmaceutical University, 24 Tongjiaxiang, Nanjing 210009, China
| | - Wei Wang
- State
Key Laboratory of Natural Medicines, Department of Pharmaceutics, China Pharmaceutical University, 24 Tongjiaxiang, Nanjing 210009, China
| | - Yazhe Wang
- State
Key Laboratory of Natural Medicines, Department of Pharmaceutics, China Pharmaceutical University, 24 Tongjiaxiang, Nanjing 210009, China
| | - Xiuli Bao
- State
Key Laboratory of Natural Medicines, Department of Pharmaceutics, China Pharmaceutical University, 24 Tongjiaxiang, Nanjing 210009, China
| | - Yu Wang
- Collaborative
Innovation Center for Cardiovascular Disease Translational Medicine,
Department of Pharmacology, Nanjing Medical University, 140 Hanzhong
Road, Nanjing 210029, China
| | - Cheng Wang
- State
Key Laboratory of Natural Medicines, Department of Pharmaceutics, China Pharmaceutical University, 24 Tongjiaxiang, Nanjing 210009, China
| | - Jian Chen
- School
of Pharmacy, Fu Dan University, 826 Zhangheng Road, Shanghai 201203, China
| | - Fangrong Zhang
- State
Key Laboratory of Natural Medicines, Department of Pharmaceutics, China Pharmaceutical University, 24 Tongjiaxiang, Nanjing 210009, China
| | - Jianping Zhou
- State
Key Laboratory of Natural Medicines, Department of Pharmaceutics, China Pharmaceutical University, 24 Tongjiaxiang, Nanjing 210009, China
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34
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Oupický D, Li J. Bioreducible polycations in nucleic acid delivery: past, present, and future trends. Macromol Biosci 2014; 14:908-22. [PMID: 24678057 PMCID: PMC4410047 DOI: 10.1002/mabi.201400061] [Citation(s) in RCA: 77] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2014] [Revised: 02/19/2014] [Indexed: 12/16/2022]
Abstract
Polycations that are degradable by reduction of disulfide bonds are developed for applications in delivery of nucleic acids. This Feature Article surveys methods of synthesis of bioreducible polycations and discusses current understanding of the mechanism of action of bioreducible polyplexes. Emphasis is placed on the relationship between the biological redox environment and toxicity, trafficking, transfection activity, and in vivo behavior of bioreducible polycations and polyplexes.
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Affiliation(s)
- David Oupický
- Department of Pharmaceutical Sciences, Center for Drug Delivery and Nanomedicine, University of Nebraska Medical Center, Durham Research Center, 985830 Nebraska Medical Center, Omaha, NE 68198-5830, USA.
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Aravindan L, Bicknell KA, Brooks G, Khutoryanskiy VV, Williams AC. A Comparison of Thiolated and Disulfide-Crosslinked Polyethylenimine for Nonviral Gene Delivery. Macromol Biosci 2013; 13:1163-73. [DOI: 10.1002/mabi.201300103] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2013] [Revised: 04/12/2013] [Indexed: 01/23/2023]
Affiliation(s)
- Latha Aravindan
- Reading School of Pharmacy; University of Reading; Whiteknights, PO Box 224, RG6 6AD Reading United Kingdom
| | - Katrina A. Bicknell
- Reading School of Pharmacy; University of Reading; Whiteknights, PO Box 224, RG6 6AD Reading United Kingdom
| | - Gavin Brooks
- School of Biological Sciences; University of Reading; Whiteknights Reading United Kingdom
| | - Vitaliy V. Khutoryanskiy
- Reading School of Pharmacy; University of Reading; Whiteknights, PO Box 224, RG6 6AD Reading United Kingdom
| | - Adrian C. Williams
- Reading School of Pharmacy; University of Reading; Whiteknights, PO Box 224, RG6 6AD Reading United Kingdom
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Hu H, Xiu KM, Xu SL, Yang WT, Xu FJ. Functionalized Layered Double Hydroxide Nanoparticles Conjugated with Disulfide-Linked Polycation Brushes for Advanced Gene Delivery. Bioconjug Chem 2013; 24:968-78. [DOI: 10.1021/bc300683y] [Citation(s) in RCA: 73] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- H. Hu
- State Key Laboratory of Chemical Resource
Engineering, Key Laboratory of Carbon Fiber and Functional Polymers,
Ministry of Education, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing
100029, China
| | - K. M. Xiu
- State Key Laboratory of Chemical Resource
Engineering, Key Laboratory of Carbon Fiber and Functional Polymers,
Ministry of Education, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing
100029, China
| | - S. L. Xu
- State Key Laboratory of Chemical Resource
Engineering, Key Laboratory of Carbon Fiber and Functional Polymers,
Ministry of Education, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing
100029, China
| | - W. T. Yang
- State Key Laboratory of Chemical Resource
Engineering, Key Laboratory of Carbon Fiber and Functional Polymers,
Ministry of Education, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing
100029, China
| | - F. J. Xu
- State Key Laboratory of Chemical Resource
Engineering, Key Laboratory of Carbon Fiber and Functional Polymers,
Ministry of Education, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing
100029, China
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Novo L, van Gaal EVB, Mastrobattista E, van Nostrum CF, Hennink WE. Decationized crosslinked polyplexes for redox-triggered gene delivery. J Control Release 2013; 169:246-56. [PMID: 23583705 DOI: 10.1016/j.jconrel.2013.03.035] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2012] [Revised: 03/25/2013] [Accepted: 03/29/2013] [Indexed: 11/16/2022]
Abstract
The clinical applicability of polymers as gene delivery systems depends not only on their efficiency, but also on their safety. The cytotoxicity of these systems remains a major issue, mainly due to their cationic nature. Therefore, it is highly preferable to have a system based on biocompatible neutral polymers, lacking polycations, without compromising the DNA condensing and protecting capacities. Here, we introduce a concept to obtain a neutral polymeric gene delivery system, through a 3-step process (charge-driven condensation; stabilization through disulfide crosslinking; polyplex decationization) to generate polyplexes with a core of disulfide crosslinked poly(hydroxypropyl methacrylamide) (pHPMA) in which plasmid DNA (pDNA) is entrapped and a shell of poly(ethylene glycol) (PEG). The resulting polyplexes combine beneficial features of high and stable DNA loading capacity, stealth behavior and reduced toxicity. The nanoparticles are designed to release the pDNA after cellular uptake through cleavage of disulfide crosslinks within the intracellular reducing environment. This was shown by forced introduction of the polyplexes into the cytosol of HeLa cells by electroporation, which resulted in a high level of expression of the reporter gene. Additionally, the decationized polyplexes showed no interference on the cellular cell viability or metabolic activity (even at high dose) and no complex-induced membrane destabilization. Furthermore, decationized polyplexes showed a low degree of non-specific uptake, which is a highly favorable property for targeted therapy. Summarizing, the stabilized, decationized polyplexes presented here contribute to solve the high toxicity, low stability and lack of cellular/tissue specificity of cationic polymer based gene delivery systems.
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Affiliation(s)
- Luís Novo
- Department of Pharmaceutics, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, 3584 CG Utrecht, The Netherlands
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Samarajeewa S, Ibricevic A, Gunsten SP, Shrestha R, Elsabahy M, Brody SL, Wooley KL. Degradable cationic shell cross-linked knedel-like nanoparticles: synthesis, degradation, nucleic acid binding, and in vitro evaluation. Biomacromolecules 2013; 14:1018-27. [PMID: 23510389 PMCID: PMC3640429 DOI: 10.1021/bm3018774] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
In this work, degradable cationic shell cross-linked knedel-like (deg-cSCK) nanoparticles were developed as an alternative platform to replace similar nondegradable cSCK nanoparticles that have been utilized for nucleic acids delivery. An amphiphilic diblock copolymer poly(acrylamidoethylamine)(90)-block-poly(DL-lactide)(40) (PAEA(90)-b-PDLLA(40)) was synthesized, self-assembled in aqueous solution, and shell cross-linked using a hydrolyzable cross-linker to afford deg-cSCKs with an average core diameter of 45 ± 7 nm. These nanoparticles were fluorescently labeled for in vitro tracking. The enzymatic- and hydrolytic-degradability, siRNA binding affinity, cell uptake and cytotoxicity of the deg-cSCKs were evaluated. Esterase-catalyzed hydrolysis of the nanoparticles resulted in the degradation of ca. 24% of the PDLLA core into lactic acid within 5 d, as opposed to only ca. 9% degradation from aqueous solutions of the deg-cSCK nanoparticles in the absence of enzyme. Cellular uptake of deg-cSCKs was efficient, while exhibiting low cytotoxicity with LD50 values of ca. 90 and 30 μg/mL in RAW 264.7 mouse macrophages and MLE 12 cell lines, respectively, ca. 5- to 6-fold lower than the cytotoxicity observed for nondegradable cSCK analogs. Additionally, deg-cSCKs were able to complex siRNA at an N/P ratio as low as 2, and were efficiently able to facilitate cellular uptake of the complexed nucleic acids.
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Affiliation(s)
- Sandani Samarajeewa
- Departments of Chemistry and Chemical Engineering, Texas A&M University, P. O. Box 30012, College Station, Texas, 77842, United States
| | - Aida Ibricevic
- Department of Internal Medicine, Washington University School of Medicine, 660 S. Euclid Ave, Saint Louis, Missouri, 63110, United States
| | - Sean P. Gunsten
- Department of Internal Medicine, Washington University School of Medicine, 660 S. Euclid Ave, Saint Louis, Missouri, 63110, United States
| | - Ritu Shrestha
- Departments of Chemistry and Chemical Engineering, Texas A&M University, P. O. Box 30012, College Station, Texas, 77842, United States
| | - Mahmoud Elsabahy
- Departments of Chemistry and Chemical Engineering, Texas A&M University, P. O. Box 30012, College Station, Texas, 77842, United States
- Department of Pharmaceutics, Faculty of Pharmacy, Assiut University, Assiut, Egypt
| | - Steven L. Brody
- Department of Internal Medicine, Washington University School of Medicine, 660 S. Euclid Ave, Saint Louis, Missouri, 63110, United States
| | - Karen L. Wooley
- Departments of Chemistry and Chemical Engineering, Texas A&M University, P. O. Box 30012, College Station, Texas, 77842, United States
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Hu Y, Zhu Y, Yang WT, Xu FJ. New star-shaped carriers composed of β-cyclodextrin cores and disulfide-linked poly(glycidyl methacrylate) derivative arms with plentiful flanking secondary amine and hydroxyl groups for highly efficient gene delivery. ACS APPLIED MATERIALS & INTERFACES 2013; 5:703-712. [PMID: 23270523 DOI: 10.1021/am302249x] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
The biocleavable star-shaped vectors (CD-SS-PGEAs) consisting of nonionic β-cyclodextrin (β-CD) cores and disulfide-linked low-molecular-weight poly(glycidyl methacrylate) (PGMA) derivative arms with plentiful flanking secondary amine and hydroxyl groups were successfully proposed for highly efficient gene delivery. A simple two-step method was first adopted to introduce reduction-sensitive disulfide-linked initiation sites of atom transfer radical polymerization (ATRP) onto β-CD cores. The disulfide-linked PGMA arms prepared subsequently via ATRP were functionalized via the ring-opening reaction with ethanolamine (EA) to produce the cationic EA-functionalized PGMA (PGEA) arms with plentiful secondary amine and nonionic hydroxyl units. The cationic PGEA arms can be readily cleavable from the β-CD cores under reducible conditions. Such biocleavable star-shaped CD-SS-PGEA vectors possessed the good pDNA condensation ability, low cytotoxicity, and efficient gene delivery ability.
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Affiliation(s)
- Y Hu
- State Key Laboratory of Chemical Resource Engineering, Key Laboratory of Carbon Fiber and Functional Polymers, Ministry of Education, College of Materials Science & Engineering, Beijing University of Chemical Technology, Beijing 100029 China
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Zhao F, Yin H, Zhang Z, Li J. Folic acid modified cationic γ-cyclodextrin-oligoethylenimine star polymer with bioreducible disulfide linker for efficient targeted gene delivery. Biomacromolecules 2013; 14:476-84. [PMID: 23323627 DOI: 10.1021/bm301718f] [Citation(s) in RCA: 86] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
For an efficient folate-targeted delivery, while the interaction between the folate on the carriers and the folate receptor (FR) on the cells is necessary, the recovering and recycling of FR to maintain a high density level of FR on the cellular membrane is also important. Herein, we demonstrate a design and synthesis of a new star-shaped cationic polymer containing a γ-cyclodextrin (γ-CD) core and multiple oligoethylenimine (OEI) arms with folic acid (FA) linked by a bioreducible disulfide bond for efficient targeted gene delivery. The newly synthesized cationic polymer, named γ-CD-OEI-SS-FA, could be cleaved efficiently, and FA was readily released under reductive condition similar to intracellular environment. The γ-CD-OEI-SS-FA polymer was well-characterized and studied in terms of its gene delivery properties in FR-positive KB cells and FR-negative A549 cells under various conditions, in comparison with cationic polymers such as high molecular weight branched polyethylenimine (PEI), γ-CD-OEI star-shaped cationic polymer, γ-CD-OEI-FA polymer where FA was directed linked to the star polymer without disulfide linker. Our data have demonstrated that the new γ-CD-OEI-SS-FA gene carrier had low cytotoxicity and possessed capacity to target and deliver DNA to specific tumor cells that overexpress FRs, as well as functions to recover and recycle FRs onto cellular membranes to facilitate continuous FR-mediated endocytosis to achieve very high levels of gene expression. This study has expanded the strategy of FA-targeted delivery by combining the smart FR-recycling function to achieve the significant enhancement of gene expression. The new FA-targeted and bioreducible carrier may be a promising efficient gene delivery system for potential cancer gene therapy.
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Affiliation(s)
- Feng Zhao
- Department of Bioengineering, Faculty of Engineering, National University of Singapore, 7 Engineering Drive 1, Singapore
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Fleige E, Quadir MA, Haag R. Stimuli-responsive polymeric nanocarriers for the controlled transport of active compounds: concepts and applications. Adv Drug Deliv Rev 2012; 64:866-84. [PMID: 22349241 DOI: 10.1016/j.addr.2012.01.020] [Citation(s) in RCA: 749] [Impact Index Per Article: 62.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2011] [Revised: 01/25/2012] [Accepted: 01/27/2012] [Indexed: 01/08/2023]
Abstract
The use of polymeric nanocarriers to transport active compounds like small-molecular drugs, peptides, or genes found an increased attention throughout the different fields of natural sciences. Not only that these nanocarriers enhance the properties of already existing drugs in terms of solubility, bioavailability, and prolonged circulation times, furthermore they can be tailor-made in such a manner that they selectively release their cargo at the desired site of action. For the triggered release, these so-called smart drug delivery systems are designed to react on certain stimuli like pH, temperature, redox potential, enzymes, light, and ultrasound. Some of these stimuli are naturally occurring in vivo, for example the difference in pH in different cellular compartments while others are caused by the disease, which is to be treated, like differences in pH and temperature in some tumor tissues. Other external applied stimuli, like light and ultrasound, allow the temporal and spatial control of the release, since they are not triggered by any biological event. This review gives a brief overview about some types of stimuli-responsive nanocarriers with the main focus on organic polymer-based systems. Furthermore, the different stimuli and the design of corresponding responsive nanocarriers will be discussed with the help of selected examples from the literature.
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Li J, Manickam DS, Chen J, Oupicky D. Effect of cell membrane thiols and reduction-triggered disassembly on transfection activity of bioreducible polyplexes. Eur J Pharm Sci 2012; 46:173-80. [PMID: 22406090 DOI: 10.1016/j.ejps.2012.02.020] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2011] [Revised: 02/21/2012] [Accepted: 02/26/2012] [Indexed: 01/22/2023]
Abstract
Bioreducible polyplexes are promising vectors for delivery of nucleic acids due to low toxicity and favorable transfection activity. The often improved transfection is usually explained by enhanced intracellular reductive disassembly of the polyplexes. This study evaluated the effect of enhanced reductive disassembly on transfection activity of plasmid DNA and antisense oligonucleotide (AON) polyplexes based on a series of bioreducible poly(amido amine)s (PAA). We found that the presence of disulfide bonds in PAA had no effect on nucleic acid binding, hydrodynamic size and zeta potential of polyplexes. Increasing the disulfide content in PAA increased susceptibility to reduction-triggered DNA and AON release from the polyplexes. Increasing the disulfide content in PAA increased DNA transfection but had no effect on AON transfection. Plasma membrane protein thiols played a key role in the observed enhancement of DNA transfection. The presence of disulfide bonds in PAA had no significant effect on the rate of intracellular DNA clearance, suggesting that enhanced intracellular disassembly of the bioreducible polyplexes is not a major contributing factor to the improved transfection activity.
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Affiliation(s)
- Jing Li
- Department of Pharmaceutical Sciences, Wayne State University, Detroit, MI, USA
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43
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Biocleavable comb-shaped gene carriers from dextran backbones with bioreducible ATRP initiation sites. Biomaterials 2012; 33:1873-83. [DOI: 10.1016/j.biomaterials.2011.11.027] [Citation(s) in RCA: 70] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2011] [Accepted: 11/13/2011] [Indexed: 02/02/2023]
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Miyata K, Nishiyama N, Kataoka K. Rational design of smart supramolecular assemblies for gene delivery: chemical challenges in the creation of artificial viruses. Chem Soc Rev 2012; 41:2562-74. [DOI: 10.1039/c1cs15258k] [Citation(s) in RCA: 378] [Impact Index Per Article: 31.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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45
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Soliman M, Nasanit R, Abulateefeh SR, Allen S, Davies MC, Briggs SS, Seymour LW, Preece JA, Grabowska AM, Watson SA, Alexander C. Multicomponent Synthetic Polymers with Viral-Mimetic Chemistry for Nucleic Acid Delivery. Mol Pharm 2011; 9:1-13. [DOI: 10.1021/mp200108q] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Mahmoud Soliman
- School of Pharmacy, University of Nottingham, Nottingham NG7 2RD, U.K
- Department
of Pharmaceutics,
Faculty of Pharmacy, Ain Shams University, Monazamet El Wehda El Afrikia St., El Abbassia, Cairo, Egypt
| | - Rujikan Nasanit
- School of Chemistry, University of Birmingham, Birmingham B15 2TT, U.K
- Department of Biotechnology, Faculty
of Engineering and Industrial Technology, Silpakorn University, Nakorn Pathom 73000, Thailand
| | | | - Stephanie Allen
- School of Pharmacy, University of Nottingham, Nottingham NG7 2RD, U.K
| | - Martyn C. Davies
- School of Pharmacy, University of Nottingham, Nottingham NG7 2RD, U.K
| | - Simon S. Briggs
- Department of Clinical Pharmacology, University of Oxford, Oxford OX2 6HE, U.K
| | - Leonard W. Seymour
- Department of Clinical Pharmacology, University of Oxford, Oxford OX2 6HE, U.K
| | - Jon A. Preece
- School of Chemistry, University of Birmingham, Birmingham B15 2TT, U.K
| | - Anna M. Grabowska
- Division of Pre-Clinical Oncology, University of Nottingham, Queens Medical Centre, Nottingham
NG7 2UH, U.K
| | - Susan A. Watson
- Division of Pre-Clinical Oncology, University of Nottingham, Queens Medical Centre, Nottingham
NG7 2UH, U.K
| | - Cameron Alexander
- School of Pharmacy, University of Nottingham, Nottingham NG7 2RD, U.K
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Oliveira JM, Sousa RA, Malafaya PB, Silva SS, Kotobuki N, Hirose M, Ohgushi H, Mano JF, Reis RL. In vivo study of dendronlike nanoparticles for stem cells “tune-up”: from nano to tissues. NANOMEDICINE-NANOTECHNOLOGY BIOLOGY AND MEDICINE 2011; 7:914-24. [DOI: 10.1016/j.nano.2011.03.002] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/03/2010] [Revised: 02/19/2011] [Accepted: 03/05/2011] [Indexed: 10/18/2022]
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48
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Invading target cells: multifunctional polymer conjugates as therapeutic nucleic acid carriers. Front Chem Sci Eng 2011. [DOI: 10.1007/s11705-011-1203-z] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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Dai Hai Nguyen, Jong Hoon Choi, Yoon Ki Joung, Ki Dong Park. Disulfide-crosslinked heparin-pluronic nanogels as a redox-sensitive nanocarrier for intracellular protein delivery. J BIOACT COMPAT POL 2011. [DOI: 10.1177/0883911511406031] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Improving the efficacy of drug delivery via nanocarriers has been a major issue in the field of intravenous delivery. In this study, a polymeric nanogel was developed to enhance the stability, redox responsiveness, and the efficacy for intracellular protein delivery. The thiolated heparin-Pluronic conjugate was self-assembled and oxidized to form a disulfide-crosslinked nanogel network under a diluted aqueous condition. The disulfide-crosslinked heparin-Pluronic (DHP) nanogels with encapsulated RNase A were characterized by in vitro release and cytotoxicity tests depending on the existence of glutathione (GSH). The DHP nanogels exhibited reduced hydrodynamic size, higher encapsulation degree, and augmentable release responding to the GSH concentration. The ctotoxicity data confirmed that DHP nanogels were more effective for the intracellular delivery of RNase A compared to non-crosslinked nanogel.
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Affiliation(s)
- Dai Hai Nguyen
- Department of Molecular Science and Technology, Ajou University, 5 Woncheon, Yeoungtong, Suwon 443-749, Republic of Korea
| | - Jong Hoon Choi
- Department of Molecular Science and Technology, Ajou University, 5 Woncheon, Yeoungtong, Suwon 443 749, Republic of Korea
| | - Yoon Ki Joung
- Department of Molecular Science and Technology, Ajou University, 5 Woncheon, Yeoungtong, Suwon 443-749, Republic of Korea
| | - Ki Dong Park
- Department of Molecular Science and Technology, Ajou University, 5 Woncheon, Yeoungtong, Suwon 443-749, Republic of Korea,
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50
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Xu CH, Sui MH, Tang JB, Shen YQ. What can we learn from virus in designing nonviral gene vectors. CHINESE JOURNAL OF POLYMER SCIENCE 2011. [DOI: 10.1007/s10118-011-1047-5] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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