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Li Q, Hao X, Guo J, Ren X, Xia S, Zhang W, Feng Y. Multifunctional Gene Carriers Labeled by Perylene Diimide Derivative as Fluorescent Probe for Tracking Gene Delivery. Macromol Rapid Commun 2019; 40:e1800916. [DOI: 10.1002/marc.201800916] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2018] [Revised: 02/24/2019] [Indexed: 12/30/2022]
Affiliation(s)
- Qian Li
- School of Chemical Engineering and TechnologyTianjin University Yaguan Road 135 Tianjin 300350 China
| | - Xuefang Hao
- School of Chemical Engineering and TechnologyTianjin University Yaguan Road 135 Tianjin 300350 China
| | - Jintang Guo
- School of Chemical Engineering and TechnologyTianjin University Yaguan Road 135 Tianjin 300350 China
| | - Xiang‐Kui Ren
- School of Chemical Engineering and TechnologyTianjin University Yaguan Road 135 Tianjin 300350 China
- Collaborative Innovation Center of Chemical Science and Chemical Engineering (Tianjin) Tianjin 300350 China
- Key Laboratory of Systems Bioengineering (Ministry of Education)Tianjin University Tianjin 300072 China
| | - Shihai Xia
- Department of Hepatopancreatobiliary and Splenic MedicineAffiliated HospitalLogistics University of People's Armed Police Force 220 Chenglin Road Tianjin 300162 China
| | - Wencheng Zhang
- Department of Physiology and PathophysiologyLogistics University of Chinese People's Armed Police Force Tianjin 300309 China
| | - Yakai Feng
- School of Chemical Engineering and TechnologyTianjin University Yaguan Road 135 Tianjin 300350 China
- Collaborative Innovation Center of Chemical Science and Chemical Engineering (Tianjin) Tianjin 300350 China
- Key Laboratory of Systems Bioengineering (Ministry of Education)Tianjin University Tianjin 300072 China
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Mansouri A, Abnous K, Alibolandi M, Taghdisi SM, Ramezani M. Targeted delivery of tacrolimus to T cells by pH-responsive aptamer-chitosan- poly(lactic-co-glycolic acid) nanocomplex. J Cell Physiol 2019; 234:18262-18271. [PMID: 30883749 DOI: 10.1002/jcp.28458] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2018] [Revised: 02/03/2019] [Accepted: 02/14/2019] [Indexed: 01/18/2023]
Abstract
Tacrolimus (TAC) acts as an inhibitor of calcineurin, which inhibits the production of interleukin-2. In this study, we aimed to design a targeted delivery platform with poly (lactide-co-glycolide; PLGA) nanoparticles modified with chitosan (CS) and CD8AP17s aptamer (Apt). MOLT-4 cells as CD8 positive and JURKAT cells as CD negative were adopted to investigate the efficacy of the proposed delivery system in vitro. The particle size and Ζ potential of the TAC-PLGA-CS-Apt nanocomplex were 345 nm and 13.7 mV, respectively. Release study showed an efficient TAC release from complex in citrate buffer (pH 5.5). The 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide assay showed that TAC-PLGA-CS-Apt nanocomplex was highly selective toward MOLT-4 cells. Complex increased the cellular uptake of TAC in MOLT-4 cells (target) while reducing its cytotoxicity in JURKAT cells (nontarget). Our study showed that complex nanoconjugate could efficiently deliver TAC into MOLT-4 cells as a model of cytotoxic T cell and it could be considered as a potential candidate for TAC delivery.
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Affiliation(s)
- Atena Mansouri
- Nanotechnology Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran.,Students Research Committee, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Khalil Abnous
- Pharmaceutical Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran.,Department of Medicinal Chemistry, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Mona Alibolandi
- Pharmaceutical Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Seyed Mohammad Taghdisi
- Targeted Drug Delivery Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran.,Department of Pharmaceutical Biotechnology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Mohammad Ramezani
- Pharmaceutical Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran.,Department of Pharmaceutical Biotechnology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
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3
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Effect of Different Tensoactives on the Morphology and Release Kinetics of PLA-b-PEG Microcapsules Loaded With the Natural Anticancer Compound Perillyl Alcohol. J Pharm Sci 2019; 108:860-869. [DOI: 10.1016/j.xphs.2018.09.003] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2018] [Accepted: 09/05/2018] [Indexed: 11/16/2022]
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4
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Sun Y, Liu H, Cheng L, Zhu S, Cai C, Yang T, Yang L, Ding P. Thiol Michael addition reaction: a facile tool for introducing peptides into polymer-based gene delivery systems. POLYM INT 2017. [DOI: 10.1002/pi.5490] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Yanping Sun
- School of Pharmacy; Shenyang Pharmaceutical University; Shenyang China
| | - Hui Liu
- School of Pharmacy; Shenyang Pharmaceutical University; Shenyang China
| | - Lin Cheng
- School of Pharmacy; Shenyang Pharmaceutical University; Shenyang China
| | - Shimeng Zhu
- School of Pharmacy; Shenyang Pharmaceutical University; Shenyang China
| | - Cuifang Cai
- School of Pharmacy; Shenyang Pharmaceutical University; Shenyang China
| | - Tianzhi Yang
- Department of Basic Pharmaceutical Sciences; Husson University; Bangor ME USA
| | - Li Yang
- School of Pharmacy; Shenyang Pharmaceutical University; Shenyang China
| | - Pingtian Ding
- School of Pharmacy; Shenyang Pharmaceutical University; Shenyang China
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Enhancement of Angiogenesis by Ultrasound-Targeted Microbubble Destruction Combined with Nuclear Localization Signaling Peptides in Canine Myocardial Infarction. BIOMED RESEARCH INTERNATIONAL 2017; 2017:9390565. [PMID: 29259991 PMCID: PMC5702398 DOI: 10.1155/2017/9390565] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/23/2017] [Revised: 08/23/2017] [Accepted: 09/07/2017] [Indexed: 01/10/2023]
Abstract
Objective This study aimed to develop a gene delivery system using ultrasound-targeted microbubbles destruction (UTMD) combined with nuclear localization signal (NLS) and investigate its efficacy and safety for therapeutic angiogenesis in canine myocardial infarction (MI) model. Methods Fifty MI dogs were randomly divided into 5 groups and transfected with Ang-1 gene plasmid: (i) group A: only injection of microbubbles and Ang-1 plasmid; (ii) group B: only UTMD mediated gene transfection; (iii) group C: UTMD combined with classical NLS mediated gene transfection; (iv) group D: UTMD combined with mutational NLS mediated transfection; and (v) group E: UTMD combined with classical NLS in the presence of a nucleus transport blocker. The mRNA and protein expression of Ang-1 gene, microvessel density (MVD) cardiac troponin I (cTnI), and cardiac function were determined after transfection. Results The expression of mRNA and protein of Ang-1 gene in group C was significantly higher than that of the other groups (all P < 0.01). The MVD of group C was 10.2-fold of group A and 8.1-fold of group E (P < 0.01). The cardiac function in group C was significant improvement without cTnI rising. Conclusions The gene delivery system composed of UTMD and NLS is efficient and safe.
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Sun Y, Yang Z, Wang C, Yang T, Cai C, Zhao X, Yang L, Ding P. Exploring the role of peptides in polymer-based gene delivery. Acta Biomater 2017; 60:23-37. [PMID: 28778533 DOI: 10.1016/j.actbio.2017.07.043] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2017] [Revised: 07/14/2017] [Accepted: 07/31/2017] [Indexed: 12/15/2022]
Abstract
Polymers are widely studied as non-viral gene vectors because of their strong DNA binding ability, capacity to carry large payload, flexibility of chemical modifications, low immunogenicity, and facile processes for manufacturing. However, high cytotoxicity and low transfection efficiency substantially restrict their application in clinical trials. Incorporating functional peptides is a promising approach to address these issues. Peptides demonstrate various functions in polymer-based gene delivery systems, such as targeting to specific cells, breaching membrane barriers, facilitating DNA condensation and release, and lowering cytotoxicity. In this review, we systematically summarize the role of peptides in polymer-based gene delivery, and elaborate how to rationally design polymer-peptide based gene delivery vectors. STATEMENT OF SIGNIFICANCE Polymers are widely studied as non-viral gene vectors, but suffer from high cytotoxicity and low transfection efficiency. Incorporating short, bioactive peptides into polymer-based gene delivery systems can address this issue. Peptides demonstrate various functions in polymer-based gene delivery systems, such as targeting to specific cells, breaching membrane barriers, facilitating DNA condensation and release, and lowering cytotoxicity. In this review, we highlight the peptides' roles in polymer-based gene delivery, and elaborate how to utilize various functional peptides to enhance the transfection efficiency of polymers. The optimized peptide-polymer vectors should be able to alter their structures and functions according to biological microenvironments and utilize inherent intracellular pathways of cells, and consequently overcome the barriers during gene delivery to enhance transfection efficiency.
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Affiliation(s)
- Yanping Sun
- School of Pharmacy, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Zhen Yang
- School of Pharmacy, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Chunxi Wang
- School of Pharmacy, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Tianzhi Yang
- Department of Basic Pharmaceutical Sciences, School of Pharmacy, Husson University, Bangor, ME, USA
| | - Cuifang Cai
- School of Pharmacy, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Xiaoyun Zhao
- Department of Microbiology and Cell Biology, School of Life Science and Biopharmaceutics, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Li Yang
- School of Pharmacy, Shenyang Pharmaceutical University, Shenyang 110016, China.
| | - Pingtian Ding
- School of Pharmacy, Shenyang Pharmaceutical University, Shenyang 110016, China.
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7
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Battistella C, Klok HA. Controlling and Monitoring Intracellular Delivery of Anticancer Polymer Nanomedicines. Macromol Biosci 2017; 17. [DOI: 10.1002/mabi.201700022] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2017] [Revised: 03/03/2017] [Indexed: 12/31/2022]
Affiliation(s)
- Claudia Battistella
- École Polytechnique Fédérale de Lausanne (EPFL); Institut des Matériaux et Institut des Sciences et Ingénierie Chimiques; Laboratoire des Polymères; Bâtiment MXD; Station 12 CH-1015 Lausanne Switzerland
| | - Harm-Anton Klok
- École Polytechnique Fédérale de Lausanne (EPFL); Institut des Matériaux et Institut des Sciences et Ingénierie Chimiques; Laboratoire des Polymères; Bâtiment MXD; Station 12 CH-1015 Lausanne Switzerland
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Sun Y, Xian L, Xing H, Yu J, Yang Z, Yang T, Yang L, Ding P. Factors influencing the nuclear targeting ability of nuclear localization signals. J Drug Target 2016; 24:927-933. [DOI: 10.1080/1061186x.2016.1184273] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Tammam SN, Azzazy HME, Lamprecht A. How successful is nuclear targeting by nanocarriers? J Control Release 2016; 229:140-153. [PMID: 26995759 DOI: 10.1016/j.jconrel.2016.03.022] [Citation(s) in RCA: 72] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2015] [Revised: 03/12/2016] [Accepted: 03/14/2016] [Indexed: 12/22/2022]
Abstract
The nucleus is ultimately the final target for many therapeutics treating various disorders including cancers, heart dysfunction and brain disorders. Owing to their specialized cell uptake and trafficking mechanisms, nanoparticles (NPs) allow drug targeting where degradation sensitive therapeutics could be delivered to their target tissues and cell in active form and sufficient concentration. However, it has recently become increasingly obvious that cytosolic internalization of a drug molecule does not entail its interaction with its subcellular target and hence careful nanoparticle design and optimization is required to enable nuclear targeting. This review, discusses the barriers to NP nuclear delivery; crossing the cell membrane, endo/lysosomal escape, cytoplasmic trafficking and finally nuclear entry focusing on how NP synthesis and modification could allow for bypassing each of the aforementioned barriers and successfully reaching the nucleus. Examples of nuclear targeted NPs are also discussed, stressing on the critical aspects of nuclear targeting and pointing out how the disease state might change the normal NP path and how such change could be exploited to increase efficiency of nuclear targeting. Finally, the criteria set for the evaluation of nanocarriers for nuclear delivery are discussed highlighting that quantitative rather than qualitative evaluation is required to evaluate how successful nanocarriers for nuclear delivery are, particularly with regards to the amount of drug delivered and released in the nucleus.
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Affiliation(s)
- Salma N Tammam
- Laboratory of Pharmaceutical Technology and Biopharmaceutics, University of Bonn, 53121, Germany; Department of Chemistry, The American University in Cairo, 11835, Egypt.
| | - Hassan M E Azzazy
- Department of Chemistry, The American University in Cairo, 11835, Egypt
| | - Alf Lamprecht
- Laboratory of Pharmaceutical Technology and Biopharmaceutics, University of Bonn, 53121, Germany; Laboratory of Pharmaceutical Engineering, University of Franche-Comté, Besançon 25000, France
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10
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Gwak SJ, Yun Y, Yoon DH, Kim KN, Ha Y. Therapeutic Use of 3β-[N-(N',N'-Dimethylaminoethane) Carbamoyl] Cholesterol-Modified PLGA Nanospheres as Gene Delivery Vehicles for Spinal Cord Injury. PLoS One 2016; 11:e0147389. [PMID: 26824765 PMCID: PMC4732605 DOI: 10.1371/journal.pone.0147389] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2015] [Accepted: 01/04/2016] [Indexed: 01/19/2023] Open
Abstract
Gene delivery holds therapeutic promise for the treatment of neurological diseases and spinal cord injury. Although several studies have investigated the use of non-viral vectors, such as polyethylenimine (PEI), their clinical value is limited by their cytotoxicity. Recently, biodegradable poly (lactide-co-glycolide) (PLGA) nanospheres have been explored as non-viral vectors. Here, we show that modification of PLGA nanospheres with 3β-[N-(N′,N′-dimethylaminoethane) carbamoyl] cholesterol (DC-Chol) enhances gene transfection efficiency. PLGA/DC-Chol nanospheres encapsulating DNA were prepared using a double emulsion-solvent evaporation method. PLGA/DC-Chol nanospheres were less cytotoxic than PEI both in vitro and in vivo. DC-Chol modification improved the uptake of nanospheres, thereby increasing their transfection efficiency in mouse neural stem cells in vitro and rat spinal cord in vivo. Also, transgene expression induced by PLGA nanospheres was higher and longer-lasting than that induced by PEI. In a rat model of spinal cord injury, PLGA/DC-Chol nanospheres loaded with vascular endothelial growth factor gene increased angiogenesis at the injury site, improved tissue regeneration, and resulted in better recovery of locomotor function. These results suggest that DC-Chol-modified PLGA nanospheres could serve as therapeutic gene delivery vehicles for spinal cord injury.
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Affiliation(s)
- So-Jung Gwak
- Spine & Spinal Cord Institute, Department of Neurosurgery, Yonsei University College of Medicine, Seoul, Korea
- Department of Bioengineering, Clemson University, Clemson, South Carolina, United States of America
| | - Yeomin Yun
- Spine & Spinal Cord Institute, Department of Neurosurgery, Yonsei University College of Medicine, Seoul, Korea
| | - Do Heum Yoon
- Spine & Spinal Cord Institute, Department of Neurosurgery, Yonsei University College of Medicine, Seoul, Korea
| | - Keung Nyun Kim
- Spine & Spinal Cord Institute, Department of Neurosurgery, Yonsei University College of Medicine, Seoul, Korea
| | - Yoon Ha
- Spine & Spinal Cord Institute, Department of Neurosurgery, Yonsei University College of Medicine, Seoul, Korea
- * E-mail:
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Gwak SJ, Koo H, Yun Y, Yhee JY, Lee HY, Yoon DH, Kim K, Ha Y. Multifunctional nanoparticles for gene delivery and spinal cord injury. J Biomed Mater Res A 2015; 103:3474-82. [DOI: 10.1002/jbm.a.35489] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2014] [Revised: 04/09/2015] [Accepted: 04/15/2015] [Indexed: 01/23/2023]
Affiliation(s)
- So-Jung Gwak
- Department of Neurosurgery; Spine and Spinal Cord Institute; Yonsei University College of Medicine; 134 Shinchon-dong Seodaemoon-gu Seoul South Korea
| | - Heebeom Koo
- Center for Theragnosis, Biomedical Research Institute, Korea Institute of Science and Technology; Hwarangno 14-Gil 6 Seongbuk-Gu Seoul 136-791 South Korea
| | - Yeomin Yun
- Department of Neurosurgery; Spine and Spinal Cord Institute; Yonsei University College of Medicine; 134 Shinchon-dong Seodaemoon-gu Seoul South Korea
| | - Ji Young Yhee
- Center for Theragnosis, Biomedical Research Institute, Korea Institute of Science and Technology; Hwarangno 14-Gil 6 Seongbuk-Gu Seoul 136-791 South Korea
| | - Hye Yeong Lee
- Department of Neurosurgery; Spine and Spinal Cord Institute; Yonsei University College of Medicine; 134 Shinchon-dong Seodaemoon-gu Seoul South Korea
| | - Do Heum Yoon
- Department of Neurosurgery; Spine and Spinal Cord Institute; Yonsei University College of Medicine; 134 Shinchon-dong Seodaemoon-gu Seoul South Korea
| | - Kwangmeyung Kim
- Center for Theragnosis, Biomedical Research Institute, Korea Institute of Science and Technology; Hwarangno 14-Gil 6 Seongbuk-Gu Seoul 136-791 South Korea
| | - Yoon Ha
- Department of Neurosurgery; Spine and Spinal Cord Institute; Yonsei University College of Medicine; 134 Shinchon-dong Seodaemoon-gu Seoul South Korea
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Abstract
Viruses are promising vehicles that result in high gene expression level, but issues of safety and virulent nature prevented its extensive use. Therefore, nonviral approach was investigated with the intervention of nanomedicine. The science of nanomedicine offered an excellent platform for therapeutic delivery as they provide options to include functionalities and engineer the system. As the term 'nano' refers to the generation of a very small dimension structure, their unique physicochemical characteristics with increased surface area/volume ratio made them potential vectors to perform gene therapy. Various forms of nanoparticles are continued to be synthesised, and this review discusses the immediate barriers that nanoparticles have to encounter both during systemic movement in the body and intracellular trafficking to deliver the genes at the site of action.
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Affiliation(s)
- Susan Muthe Alex
- Facility for Nano/Microparticles Based Biomaterials for Advanced Drug Delivery Systems (FADDS) Division of Biosurface Technology, Biomedical Technology Wing, Sree Chitra Tirunal Institute for Medical Sciences & Technology, Poojappura, Thiruvananthapuram, Kerala, 695012, India
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Zhang L, Bellis SL, Fan Y, Wu Y. Using inositol as a biocompatible ligand for efficient transgene expression. Int J Nanomedicine 2015; 10:2871-84. [PMID: 25926732 PMCID: PMC4403686 DOI: 10.2147/ijn.s77002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
Transgene transfection techniques using cationic polymers such as polyethylenimines (PEIs) and PEI derivatives as gene vectors have shown efficacy, although they also have shortcomings. PEIs have decent DNA-binding capability and good cell internalization performance, but they cannot deliver gene payloads very efficiently to cell nuclei. In this study, three hyperbranched polyglycerol-polyethylenimine (PG6-PEI) polymers conjugated with myo-inositol (INO) molecules were developed. The three resulting PG6-PEI-INO polymers have an increased number of INO ligands per molecule. PG6-PEI-INO 1 had only 14 carboxymethyl INO (CMINO) units per molecule. PG6-PEI-INO 2 had approximately 130 CMINO units per molecule. PG6-PEI-INO 3 had as high as 415 CMINO units approximately. Mixing PG6-PEI-INO polymers with DNA produced compact nanocomposites. We then performed localization studies using fluorescent microscopy. As the number of conjugated inositol ligands increased in PG6-PEI-INO polymers, there was a corresponding increase in accumulation of the polymers within 293T cell nuclei. Transfection performed with spherical 293T cells yielded 82% of EGFP-positive cells when using PG6-PEI-INO 3 as the vehicle. Studies further revealed that extracellular adenosine triphosphate (eATP) can inhibit the transgene efficiency of PG6-PEI-INO polymers, as compared with PEI and PG6-PEI that were not conjugated with inositol. Our work unveiled the possibility of using inositol as an effective ligand for transgene expression.
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Affiliation(s)
- Lei Zhang
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, People's Republic of China
| | - Susan L Bellis
- Cell, Developmental and Integrative Biology, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Yiwen Fan
- Key Laboratory of Biomedical Polymers of Ministry of Education, Department of Chemistry, Wuhan University, Wuhan, People's Republic of China
| | - Yunkun Wu
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, People's Republic of China
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Kapoor M, Burgess DJ. Targeted Delivery of Nucleic Acid Therapeutics via Nonviral Vectors. ADVANCES IN DELIVERY SCIENCE AND TECHNOLOGY 2015. [DOI: 10.1007/978-3-319-11355-5_8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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Christ GJ, Saul JM, Furth ME, Andersson KE. The pharmacology of regenerative medicine. Pharmacol Rev 2013; 65:1091-133. [PMID: 23818131 DOI: 10.1124/pr.112.007393] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Regenerative medicine is a rapidly evolving multidisciplinary, translational research enterprise whose explicit purpose is to advance technologies for the repair and replacement of damaged cells, tissues, and organs. Scientific progress in the field has been steady and expectations for its robust clinical application continue to rise. The major thesis of this review is that the pharmacological sciences will contribute critically to the accelerated translational progress and clinical utility of regenerative medicine technologies. In 2007, we coined the phrase "regenerative pharmacology" to describe the enormous possibilities that could occur at the interface between pharmacology, regenerative medicine, and tissue engineering. The operational definition of regenerative pharmacology is "the application of pharmacological sciences to accelerate, optimize, and characterize (either in vitro or in vivo) the development, maturation, and function of bioengineered and regenerating tissues." As such, regenerative pharmacology seeks to cure disease through restoration of tissue/organ function. This strategy is distinct from standard pharmacotherapy, which is often limited to the amelioration of symptoms. Our goal here is to get pharmacologists more involved in this field of research by exposing them to the tools, opportunities, challenges, and interdisciplinary expertise that will be required to ensure awareness and galvanize involvement. To this end, we illustrate ways in which the pharmacological sciences can drive future innovations in regenerative medicine and tissue engineering and thus help to revolutionize the discovery of curative therapeutics. Hopefully, the broad foundational knowledge provided herein will spark sustained conversations among experts in diverse fields of scientific research to the benefit of all.
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Affiliation(s)
- George J Christ
- Wake Forest Institute for Regenerative Medicine, Wake Forest School of Medicine, Winston-Salem, NC 27101, USA.
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Wang Y, Li P, Kong L. Chitosan-modified PLGA nanoparticles with versatile surface for improved drug delivery. AAPS PharmSciTech 2013; 14:585-92. [PMID: 23463262 DOI: 10.1208/s12249-013-9943-3] [Citation(s) in RCA: 179] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2012] [Accepted: 02/22/2013] [Indexed: 02/06/2023] Open
Abstract
Shortage of functional groups on surface of poly(lactide-co-glycolide) (PLGA)-based drug delivery carriers always hampers its wide applications such as passive targeting and conjugation with targeting molecules. In this research, PLGA nanoparticles were modified with chitosan through physical adsorption and chemical binding methods. The surface charges were regulated by altering pH value in chitosan solutions. After the introduction of chitosan, zeta potential of the PLGA nanoparticle surface changed from negative charge to positive one, making the drug carriers more affinity to cancer cells. Functional groups were compared between PLGA nanoparticles and chitosan-modified PLGA nanoparticles. Amine groups were exhibited on PLGA nanoparticle surface after the chitosan modification as confirmed by Fourier transform infrared spectroscopy and X-ray photoelectron spectroscopy. The modified nanoparticles showed an initial burst release followed by a moderate and sustained release profile. Higher percentage of drugs from cumulative release can be achieved in the same prolonged time range. Therefore, PLGA nanoparticles modified by chitosan showed versatility of surface and a possible improvement in the efficacy of current PLGA-based drug delivery system.
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Zhang H, Liang Z, Li W, Li F, Chen Q. Nuclear location signal peptide–modified poly (ethyleneimine)/DNA complexes: An efficient gene delivery vector in vitro and in vivo. J BIOACT COMPAT POL 2013. [DOI: 10.1177/0883911513483507] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
The low transfection efficiency of nonviral gene delivery systems limits their applications. In this study, we demonstrated a simple method to modify poly(ethyleneimine)/DNA complexes with a nuclear location signal peptide via bis(succinimidyl) penta(ethylene glycol) coupling. The amount of grafted nuclear location signal peptide was controlled within a range of 0–9 µg for poly(ethyleneimine)/DNA complexes containing 10 µg DNA and 100 µg poly(ethyleneimine) by adjusting the grafting agent and peptide feeds. The particle size and surface zeta-potential of the complexes were largely retained after nuclear location signal immobilization. Based on the results of the flow cytometry measurements, the nuclear location signal–modified poly(ethyleneimine)/DNA complexes were internalized into at bone marrow stem cells at a significantly faster rate and a higher amount than the unmodified complexes. In vitro transfection experiments, using plasmid DNA encoding bone morphogenetic protein 2, indicated that the nuclear location signal peptide–modified poly(ethyleneimine)/DNA complexes have significantly higher gene transfection ability toward bone marrow stem cells than unmodified complexes. The porous collagen scaffolds loaded with nuclear location signal–modified poly(ethyleneimine)/plasmid DNA encoding bone morphogenetic protein 2 complexes successfully transfected tissue cells and induced the human bone morphogenetic protein 2 expression in a rat. The modification of the poly(ethyleneimine)/DNA complexes with nuclear location signal peptide was effective in enhancing gene transfection of complexes in vitro and in vivo, thus indicating potential applications for bioactive scaffolds with enhanced tissue regeneration performance.
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Affiliation(s)
- Hua Zhang
- Department of Orthopedic Surgery, 2nd Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Zhongyan Liang
- The Women’s Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Wanli Li
- Department of Orthopedic Surgery, 2nd Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Fangcai Li
- Department of Orthopedic Surgery, 2nd Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Qixin Chen
- Department of Orthopedic Surgery, 2nd Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
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18
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Schallon A, Synatschke CV, Jérôme V, Müller AHE, Freitag R. Nanoparticulate nonviral agent for the effective delivery of pDNA and siRNA to differentiated cells and primary human T lymphocytes. Biomacromolecules 2012; 13:3463-74. [PMID: 23020076 DOI: 10.1021/bm3012055] [Citation(s) in RCA: 63] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Delivery of polynucleotides such as plasmid DNA (pDNA) and siRNA to nondividing and primary cells by nonviral vectors presents a considerable challenge. In this contribution, we introduce a novel type of PDMAEMA-based star-shaped nanoparticles that (i) are efficient transfection agents in clinically relevant and difficult-to-transfect human cells (Jurkat T cells, primary T lymphocytes) and (ii) can efficiently deliver siRNA to human primary T lymphocytes resulting to more than 40% silencing of the targeted gene. Transfection efficiencies achieved by the new vectors in serum-free medium are generally high and only slightly reduced in the presence of serum, while cytotoxicity and cell membrane disruptive potential at physiological pH are low. Therefore, these novel agents are expected to be promising carriers for nonviral gene transfer. Moreover, we propose a general design principle for the construction of polycationic nanoparticles capable of delivering nucleic acids to the above-mentioned cells.
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Affiliation(s)
- Anja Schallon
- Process Biotechnology, University of Bayreuth, 95440 Bayreuth, Germany
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Abstract
Gene therapy holds promise for the treatment of many inherited and acquired diseases of the eye. Successful ocular gene therapy interventions depend on efficient gene transfer to targeted cells with minimal toxicity. A major challenge is to overcome both intracellular and extracellular barriers associated with ocular gene delivery. Numerous viral and nonviral vectors were explored to improve transfection efficiency. Among nonviral delivery systems, polymeric vectors have gained significant attention in recent years owing to their nontoxic and non-immunogenic nature. Polyplexes or nanoparticles can be prepared by interaction of cationic polymers with DNA, which facilitate cellular uptake, endolysosomal escape and nuclear entry through active mechanisms. Chemical modification of these polymers allows for the generation of flexible delivery vectors with desirable properties. In this article several synthetic and natural polymeric systems utilized for ocular gene delivery are discussed.
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Jeon O, Krebs M, Alsberg E. Controlled and sustained gene delivery from injectable, porous PLGA scaffolds. J Biomed Mater Res A 2011; 98:72-9. [DOI: 10.1002/jbm.a.33098] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2010] [Revised: 03/03/2011] [Accepted: 03/07/2011] [Indexed: 11/11/2022]
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Biodegradable tri-block copolymer poly(lactic acid)-poly(ethylene glycol)-poly(l-lysine)(PLA-PEG-PLL) as a non-viral vector to enhance gene transfection. Int J Mol Sci 2011; 12:1371-88. [PMID: 21541064 PMCID: PMC3083711 DOI: 10.3390/ijms12021371] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2010] [Revised: 01/29/2011] [Accepted: 02/15/2011] [Indexed: 12/17/2022] Open
Abstract
Low cytotoxicity and high gene transfection efficiency are critical issues in designing current non-viral gene delivery vectors. The purpose of the present work was to synthesize the novel biodegradable poly (lactic acid)-poly(ethylene glycol)-poly(l-lysine) (PLA-PEG-PLL) copolymer, and explore its applicability and feasibility as a non-viral vector for gene transport. PLA-PEG-PLL was obtained by the ring-opening polymerization of Lys(Z)-NCA onto amine-terminated NH(2)-PEG-PLA, then acidolysis to remove benzyloxycarbonyl. The tri-block copolymer PLA-PEG-PLL combined the characters of cationic polymer PLL, PLA and PEG: the self-assembled nanoparticles (NPs) possessed a PEG loop structure to increase the stability, hydrophobic PLA segments as the core, and the primary ɛ-amine groups of lysine in PLL to electrostatically interact with negatively charged phosphate groups of DNA to deposit with the PLA core. The physicochemical properties (morphology, particle size and surface charge) and the biological properties (protection from nuclease degradation, plasma stability, in vitro cytotoxicity, and in vitro transfection ability in HeLa and HepG2 cells) of the gene-loaded PLA-PEG-PLL nanoparticles (PLA-PEG-PLL NPs) were evaluated, respectively. Agarose gel electrophoresis assay confirmed that the PLA-PEG-PLL NPs could condense DNA thoroughly and protect DNA from nuclease degradation. Initial experiments showed that PLA-PEG-PLL NPs/DNA complexes exhibited almost no toxicity and higher gene expression (up to 21.64% in HepG2 cells and 31.63% in HeLa cells) than PEI/DNA complexes (14.01% and 24.22%). These results revealed that the biodegradable tri-block copolymer PLA-PEG-PLL might be a very attractive candidate as a non-viral vector and might alleviate the drawbacks of the conventional cationic vectors/DNA complexes for gene delivery in vivo.
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Liu C, Zhang N. Nanoparticles in Gene Therapy. PROGRESS IN MOLECULAR BIOLOGY AND TRANSLATIONAL SCIENCE 2011; 104:509-62. [DOI: 10.1016/b978-0-12-416020-0.00013-9] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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Wei W, Yue ZG, Qu JB, Yue H, Su ZG, Ma GH. Galactosylated nanocrystallites of insoluble anticancer drug for liver-targeting therapy: an in vitro evaluation. Nanomedicine (Lond) 2010; 5:589-96. [PMID: 20528454 DOI: 10.2217/nnm.10.27] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
AIM Low solubility in water has become an intrinsic property of many anticancer drugs, which poses a hurdle in the translation from the bench to the clinic. In this study, we developed a facile method to prepare 10-hydroxycamptothecin (HCPT) nanocrystallites and testified their feasibility for liver-targeting therapy. MATERIALS & METHODS HCPT nanocrystallites were prepared under the soft template effect of galactosylated chitosan. The internalization profile, intracellular trafficking, drug activity and cell viability were evaluated by exposing these nanocrystallites to human hepatocellular carcinoma HepG2 cells. RESULTS Galactosylated chitosan located on the HCPT nanocrystallites not only stabilized the formulation in aqueous medium, but also enhanced the cellular internalization through an asialoglycoprotein receptor-mediated pathway. These nanocrystallites also exhibited the advantages of nuclear entry and active HCPT delivery, and consequently better anticancer cytotoxicity could be achieved. CONCLUSION These data strongly support the superior properties of galactosylated HCPT nanocrystallites on liver-targeting therapy.
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Affiliation(s)
- Wei Wei
- National Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, PR China
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Tahara K, Sakai T, Yamamoto H, Takeuchi H, Hirashima N, Kawashima Y. Improved cellular uptake of chitosan-modified PLGA nanospheres by A549 cells. Int J Pharm 2009; 382:198-204. [DOI: 10.1016/j.ijpharm.2009.07.023] [Citation(s) in RCA: 147] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2009] [Revised: 06/25/2009] [Accepted: 07/22/2009] [Indexed: 12/14/2022]
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Opanasopit P, Rojanarata T, Apirakaramwong A, Ngawhirunpat T, Ruktanonchai U. Nuclear localization signal peptides enhance transfection efficiency of chitosan/DNA complexes. Int J Pharm 2009; 382:291-5. [DOI: 10.1016/j.ijpharm.2009.08.029] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2009] [Revised: 08/04/2009] [Accepted: 08/23/2009] [Indexed: 11/28/2022]
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Cu Y, LeMoëllic C, Caplan MJ, Saltzman WM. Ligand-modified gene carriers increased uptake in target cells but reduced DNA release and transfection efficiency. NANOMEDICINE-NANOTECHNOLOGY BIOLOGY AND MEDICINE 2009; 6:334-43. [PMID: 19800989 DOI: 10.1016/j.nano.2009.09.001] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2009] [Revised: 08/27/2009] [Accepted: 09/03/2009] [Indexed: 10/20/2022]
Abstract
UNLABELLED DNA delivery to cells can be improved by using particle carriers made from biodegradable polymers such as poly(lactic-co-glycolic)acid (PLGA). It is speculated that addition of targeting moieties to the particle surface to facilitate uptake can further enhance gene expression in specific cells or tissues. Taking advantage of well-known receptor/ligand interactions in intestinal and renal epithelial cells, we formulated PLGA particles with high density of surface-bound bovine serum albumin (BSA; approximately 768 molecules/particle). BSA-coated particles exhibited significantly higher uptake by cells expressing the albumin receptor, megalin, and resisted degradation in low pH. However, gene expression from BSA-coated particles was 3- to 10-fold lower than that from unmodified particles; this reduction in transfection efficiency was probably due to the slower DNA release rate from modified particles. In this setting, addition of a targeting feature to particles reduced their effectiveness. Our study highlights the importance of the interplay between cell uptake and payload release in the design of polymer drug carriers. FROM THE CLINICAL EDITOR DNA delivery to cells can be improved by using particle carriers such as PLGA. Taking advantage of known receptor/ligand interactions in intestinal and renal epithelial cells, PLGA particles with high density surface-bound BSA were formulated. BSA-coated particles exhibited significantly higher uptake; however, gene expression was 3 to 10-fold lower. Unexpectedly, the addition of a targeting feature to these particles reduced their overall effectiveness.
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Affiliation(s)
- Yen Cu
- Department of Biomedical Engineering, Yale University, New Haven, Connecticut 06511, USA
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Zou W, Liu C, Chen Z, Zhang N. Preparation and Characterization of Cationic PLA-PEG Nanoparticles for Delivery of Plasmid DNA. NANOSCALE RESEARCH LETTERS 2009; 4:982-992. [PMID: 20596550 PMCID: PMC2893611 DOI: 10.1007/s11671-009-9345-3] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/04/2009] [Accepted: 05/06/2009] [Indexed: 05/21/2023]
Abstract
The purpose of the present work was to formulate and evaluate cationic poly(lactic acid)-poly(ethylene glycol) (PLA-PEG) nanoparticles as novel non-viral gene delivery nano-device. Cationic PLA-PEG nanoparticles were prepared by nanoprecipitation method. The gene loaded nanoparticles were obtained by incubating the report gene pEGFP with cationic PLA-PEG nanoparticles. The physicochemical properties (e.g., morphology, particle size, surface charge, DNA binding efficiency) and biological properties (e.g., integrity of the released DNA, protection from nuclease degradation, plasma stability, in vitro cytotoxicity, and in vitro transfection ability in Hela cells) of the gene loaded PLA-PEG nanoparticles were evaluated, respectively. The obtained cationic PLA-PEG nanoparticles and gene loaded nanoparticles were both spherical in shape with average particle size of 89.7 and 128.9 nm, polydispersity index of 0.185 and 0.161, zeta potentials of +28.9 and +16.8 mV, respectively. The obtained cationic PLA-PEG nanoparticles with high binding efficiency (>95%) could protect the loaded DNA from the degradation by nuclease and plasma. The nanoparticles displayed sustained-release properties in vitro and the released DNA maintained its structural and functional integrity. It also showed lower cytotoxicity than Lipofectamine 2000 and could successfully transfect gene into Hela cells even in presence of serum. It could be concluded that the established gene loaded cationic PLA-PEG nanoparticles with excellent properties were promising non-viral nano-device, which had potential to make cancer gene therapy achievable.
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Affiliation(s)
- Weiwei Zou
- School of Pharmaceutical Science, Shandong University, 44 Wenhua Xi Road, 250012, Ji-nan, China
| | - Chunxi Liu
- School of Pharmaceutical Science, Shandong University, 44 Wenhua Xi Road, 250012, Ji-nan, China
| | - Zhijin Chen
- School of Pharmaceutical Science, Shandong University, 44 Wenhua Xi Road, 250012, Ji-nan, China
| | - Na Zhang
- School of Pharmaceutical Science, Shandong University, 44 Wenhua Xi Road, 250012, Ji-nan, China
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Zhang H, Mitin A, Vinogradov SV. Efficient transfection of blood-brain barrier endothelial cells by lipoplexes and polyplexes in the presence of nuclear targeting NLS-PEG-acridine conjugates. Bioconjug Chem 2009; 20:120-8. [PMID: 19067581 DOI: 10.1021/bc8003414] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Brain capillary endothelial cells of the blood-brain barrier (BBB) are difficult targets for nonviral transfection even for the most potent transfection agents. Efficient protection and nuclear delivery of plasmid DNA are the key requirements for enhancing the transfection. We designed novel DNA intercalating conjugates of PEG-tris(acridine) with a short nuclear localization signal (NLS) peptide and investigated the effect of their complexes with luciferase-encoded plasmid DNA on lipoplex- and polyplex-mediated transfection of murine brain capillary endothelial bEnd.3 cells. These intercalation complexes protected DNA from nucleolytic degradation forming a protective PEG layer around plasmid DNA and could be efficiently condensed by Lipofectamine2000 or Exgen500 into nanosized particles. Complexation of plasmid DNA with a PEG-acridine/NLS-PEG-acridine mixture (9:1 w/w), taken in an amount equal to 5-6 NLS peptides per DNA molecule, significantly enhanced both lipo- and polyplex transfection efficacies and increased the number of transfected bEnd.3 endothelial cells in the presence of serum. Comparative transgene expression efficiency was significantly higher at longer PEG linker and optimal conjugate-to-DNA weight ratio, especially, at lower N/P ratio for both transfection agents, reaching 15-16-fold for lipoplexes and 10-11-fold for polyplexes. In addition, the NLS-PEG-acridine conjugates did not increase cytotoxicity of lipoplexes and polyplexes to bEnd.3 cells. These conjugates can serve as promising components for development of systemic nonviral transfecting approach to the transfection of the BBB and temporary modulation of its drug permeability.
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Affiliation(s)
- Hongwei Zhang
- Department of Pharmaceutical Sciences and Center for Drug Delivery and Nanomedicine, College of Pharmacy, University of Nebraska Medical Center, Omaha, Nebraska, USA
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The effect of the controlled release of nerve growth factor from collagen gel on the efficiency of neural cell culture. Biomaterials 2009; 30:126-32. [DOI: 10.1016/j.biomaterials.2008.09.021] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2008] [Accepted: 09/04/2008] [Indexed: 11/22/2022]
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Kang S, Lim H, Seo S, Jeon O, Lim S, Lee M, Kim B. Nanosphere-mediated delivery of vascular endothelial growth factor gene for therapeutic angiogenesis in mouse ischemic limbs. J Control Release 2008. [DOI: 10.1016/j.jconrel.2008.09.044] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Heparin-conjugated polyethylenimine for gene delivery. J Control Release 2008; 132:236-42. [DOI: 10.1016/j.jconrel.2008.05.017] [Citation(s) in RCA: 45] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2008] [Revised: 05/16/2008] [Accepted: 05/18/2008] [Indexed: 11/23/2022]
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Abbas AO, Donovan MD, Salem AK. Formulating poly(lactide-co-glycolide) particles for plasmid DNA delivery. J Pharm Sci 2008; 97:2448-61. [PMID: 17918737 DOI: 10.1002/jps.21215] [Citation(s) in RCA: 61] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Biodegradable poly(lactide-co-glycolide) (PLGA) particles have shown significant potential for sustained and targeted delivery of several pharmaceutical agents, including plasmid DNA (pDNA). Here, we survey current approaches to PLGA particle preparation for pDNA delivery and discuss recent progress on optimizing formulation development.
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Affiliation(s)
- Aiman O Abbas
- Division of Pharmaceutics, College of Pharmacy, University of Iowa, S228 Pharmacy Building, 115 S Grand Avenue, Iowa City, Iowa 52242, USA
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Poly(lactic-co-glycolic acid) nanosphere as a vehicle for gene delivery to human cord blood-derived mesenchymal stem cells: comparison with polyethylenimine. Biotechnol Lett 2008; 30:1177-82. [PMID: 18317698 DOI: 10.1007/s10529-008-9676-7] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2007] [Revised: 02/15/2008] [Accepted: 02/18/2008] [Indexed: 10/22/2022]
Abstract
Polyethylenimine (PEI) is one of the most extensively studied non-viral vectors but its cytotoxicity limits its clinical value. PLGA nanospheres are biocompatible and can facilitate sustained release of plasmid DNA. This study compares the cytotoxicity and long-term transgene expression between PLGA nanosphere and PEI. PLGA nanospheres were significantly less cytotoxic than PEI at various concentrations. PLGA nanospheres induced significantly higher transgene expression in vitro for a longer duration (21 days) than PEI. We conclude that PLGA nanospheres have potential as gene delivery vehicles for use in gene therapy for diseases in which a long-term therapeutic gene expression regimen is necessary.
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Kang SW, Lim HW, Seo SW, Jeon O, Lee M, Kim BS. Nanosphere-mediated delivery of vascular endothelial growth factor gene for therapeutic angiogenesis in mouse ischemic limbs. Biomaterials 2008; 29:1109-17. [DOI: 10.1016/j.biomaterials.2007.11.004] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2007] [Accepted: 11/01/2007] [Indexed: 11/25/2022]
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Mundargi RC, Babu VR, Rangaswamy V, Patel P, Aminabhavi TM. Nano/micro technologies for delivering macromolecular therapeutics using poly(d,l-lactide-co-glycolide) and its derivatives. J Control Release 2008; 125:193-209. [DOI: 10.1016/j.jconrel.2007.09.013] [Citation(s) in RCA: 665] [Impact Index Per Article: 41.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2007] [Accepted: 09/27/2007] [Indexed: 10/22/2022]
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Stewart KM, Horton KL, Kelley SO. Cell-penetrating peptides as delivery vehicles for biology and medicine. Org Biomol Chem 2008; 6:2242-55. [DOI: 10.1039/b719950c] [Citation(s) in RCA: 316] [Impact Index Per Article: 19.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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