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Sehgal V, Pandey SP, Singh PK. Prospects of charged cyclodextrins in biomedical applications. Carbohydr Polym 2024; 323:121348. [PMID: 37940240 DOI: 10.1016/j.carbpol.2023.121348] [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: 05/17/2023] [Revised: 08/26/2023] [Accepted: 08/28/2023] [Indexed: 11/10/2023]
Abstract
Cyclodextrins (CDs), recognized for their unique ability to form inclusion complexes, have seen broad utilization across various scientific fields. Recently, there has been a surge of interest in the use of charged cyclodextrins for biomedical applications, owing to their enhanced properties, such as superior solubility and improved molecular recognition compared to neutral CDs. Despite the growing literature, a comprehensive review of the biomedical utilisations of multi-charged cyclodextrins is scarce. This review provides a comprehensive exploration of the emerging prospects of charged cyclodextrin-based assemblies in the field of biomedical applications. Focusing on drug delivery systems, the review details how charged CDs enhance drug solubility and stability, reduce toxicity, and enable targeted and controlled drug release. Furthermore, the review highlights the role of charged CDs in gene therapy, notably their potential for DNA/RNA binding, cellular uptake, degradation protection, and targeted gene delivery. The promising potential of charged CDs in antibacterial and antiviral therapies, including photodynamic therapies, biofilm control, and viral replication inhibition, is discussed. Concluding with a future outlook, this review highlights the potential challenges and advancements that could propel charged CDs to the forefront of biomedicine.
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Affiliation(s)
- Vidhi Sehgal
- Department of Biotechnology, Mithibai College of Arts, Chauhan Institute of Science & Amrutben Jivanlal College of Commerce and Economics, Vile Parle (W), 400 056, India
| | - Shrishti P Pandey
- Department of Biotechnology, Mithibai College of Arts, Chauhan Institute of Science & Amrutben Jivanlal College of Commerce and Economics, Vile Parle (W), 400 056, India
| | - Prabhat K Singh
- Radiation & Photochemistry Division, Bhabha Atomic Research Centre, Mumbai 400 085, India; Homi Bhabha National Institute, Anushaktinagar, Mumbai 400085, India.
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Arima H. Twenty Years of Research on Cyclodextrin Conjugates with PAMAM Dendrimers. Pharmaceutics 2021; 13:pharmaceutics13050697. [PMID: 34064866 PMCID: PMC8151880 DOI: 10.3390/pharmaceutics13050697] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2021] [Revised: 05/03/2021] [Accepted: 05/04/2021] [Indexed: 12/13/2022] Open
Abstract
Recently, the number of gene and oligonucleotide drugs are increasing. Of various drug delivery systems (DDSs) for gene and oligonucleotide drugs, few examples of the clinical application of polymer as drug carriers are known, despite development of the novel polymers has been progressing. Cyclodextrin (CD) conjugates with starburst polyamidoamine (PAMAM) dendrimer (CDEs), as a new type of polymer-based carriers, were first published in 2001. After that, galactose-, lactose-, mannose-, fucose-, folate-, and polyethyleneglycol (PEG)-appended CDEs have been prepared for passive and active targeting for gene, oligonucleotide, and low-molecular-weight drugs. PEG-appended CDE formed polypsuedorotaxanes with α-CD and γ-CD, which are useful for a sustained release system of gene and oligonucleotide drugs. Interestingly, CDEs were found to have anti-inflammatory effects and anti-amyloid effects themselves, which have potential as active pharmaceutical ingredients. Most recently, CDE is reported to be a useful Cas9-RNA ribonucleoproteins (Cas9 RNP) carrier that induces genome editing in the neuron and brain. In this review, the history and progression of CDEs are overviewed.
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Affiliation(s)
- Hidetoshi Arima
- School of Pharmacy, Daiichi University of Pharmacy, Fukuoka 815-8511, Japan
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3
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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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4
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Li T, Chen Q, Zheng Y, Zhang P, Chen X, Lu J, Lv Y, Sun S, Zeng W. PAMAM-cRGD mediating efficient siRNA delivery to spermatogonial stem cells. Stem Cell Res Ther 2019; 10:399. [PMID: 31852526 PMCID: PMC6921429 DOI: 10.1186/s13287-019-1506-4] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2019] [Revised: 11/15/2019] [Accepted: 11/20/2019] [Indexed: 01/15/2023] Open
Abstract
Background Spermatogonial stem cells (SSCs) are the cornerstone of sperm production and thus perpetual male fertility. In clinics, transplantation of patient’s own SSCs into testes is a promising technique to restore fertility when male germ cells have been depleted by gonadotoxic therapies. Auto-transplantation of genetically modified SSCs even has the potential to treat male infertility caused by genetic mutations. However, SSCs are refractory to transfection approaches. Poly(amidoamine) (PAMAM) dendrimers have the unique three-dimensional architecture, surface charge, and high density of surface groups that are suitable for ligand attachment, thereby facilitating target delivery. The goal of this study was to elucidate whether PAMAM dendrimers can efficiently deliver short interfering RNAs (siRNAs) to SSCs. Methods and results We introduced cyclic arginine-glycine-aspartic acid (cRGD) peptides to the fifth generation of PAMAM dendrimers (G5) to generate PAMAM-cRGD dendrimers (G5-cRGD). The characterization of G5-cRGD was detected by Fourier transform infrared spectroscope (FTIR), transmission electron microscope (TEM), and the Cell Counting Kit-8 (CCK-8) assay. Confocal microscopy and flow cytometry were used to evaluate the delivery efficiency of siRNA by G5-cRGD to SSCs. The results showed that G5-cRGD encompassing siRNA could self-assemble into spherical structures with nanoscale size and possess high transfection efficiency, excellent endosomal escape ability, and low cytotoxicity, superior to a commercial transfection reagent Lipofectamine® 2000. Moreover, we demonstrated that G5-cRGD efficiently delivered siRNAs and triggered gene silencing. Conclusions This study thus provides a promising nanovector for siRNA delivery in SSCs, facilitating the future clinical application of SSC auto-transplantation with genetically modified cells with a hope to cure male infertility that is caused by genetic disorders.
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Affiliation(s)
- Tianjiao Li
- Key Laboratory for Animal Genetics, Breeding and Reproduction of Shaanxi Province, Key Laboratory for Animal Biotechnology, Ministry of Agriculture of China, College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, China
| | - Qiwen Chen
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, Yangling, 712100, Shaanxi, China
| | - Yi Zheng
- Key Laboratory for Animal Genetics, Breeding and Reproduction of Shaanxi Province, Key Laboratory for Animal Biotechnology, Ministry of Agriculture of China, College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, China
| | - Pengfei Zhang
- Key Laboratory for Animal Genetics, Breeding and Reproduction of Shaanxi Province, Key Laboratory for Animal Biotechnology, Ministry of Agriculture of China, College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, China
| | - Xiaoxu Chen
- Key Laboratory for Animal Genetics, Breeding and Reproduction of Shaanxi Province, Key Laboratory for Animal Biotechnology, Ministry of Agriculture of China, College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, China
| | - Junna Lu
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, Yangling, 712100, Shaanxi, China
| | - Yinghua Lv
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, Yangling, 712100, Shaanxi, China
| | - Shiguo Sun
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, Yangling, 712100, Shaanxi, China.
| | - Wenxian Zeng
- Key Laboratory for Animal Genetics, Breeding and Reproduction of Shaanxi Province, Key Laboratory for Animal Biotechnology, Ministry of Agriculture of China, College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, China.
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Hayashi Y, Higashi T, Motoyama K, Jono H, Ando Y, Onodera R, Arima H. Hepatocyte-Targeted Delivery of siRNA Polyplex with PEG-Modified Lactosylated Dendrimer/Cyclodextrin Conjugates for Transthyretin-Related Amyloidosis Therapy. Biol Pharm Bull 2019; 42:1679-1688. [DOI: 10.1248/bpb.b19-00278] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Yuya Hayashi
- Department of Physical Pharmaceutics, Graduate School of Pharmaceutical Sciences, Kumamoto University
- Japan Society for the Promotion of Science
| | - Taishi Higashi
- Department of Physical Pharmaceutics, Graduate School of Pharmaceutical Sciences, Kumamoto University
| | - Keiichi Motoyama
- Department of Physical Pharmaceutics, Graduate School of Pharmaceutical Sciences, Kumamoto University
| | - Hirofumi Jono
- Department of Pharmacy, Kumamoto University Hospital
- Department of Clinical Pharmaceutical Sciences, Graduate School of Pharmaceutical Sciences, Kumamoto University
| | - Yukio Ando
- Department of Neurology, Graduate School of Medical Sciences, Kumamoto University
| | | | - Hidetoshi Arima
- Department of Physical Pharmaceutics, Graduate School of Pharmaceutical Sciences, Kumamoto University
- Program for Leading Graduate Schools ‘Health life science: Interdisciplinary and Glocal Oriented (HIGO) Program,’ Kumamoto University
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Jiang C, Qi Z, Jia H, Huang Y, Wang Y, Zhang W, Wu Z, Yang H, Liu J. ATP-Responsive Low-Molecular-Weight Polyethylenimine-Based Supramolecular Assembly via Host-Guest Interaction for Gene Delivery. Biomacromolecules 2018; 20:478-489. [PMID: 30516950 DOI: 10.1021/acs.biomac.8b01395] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
In this work, we report on an ATP-responsive low-molecular-weight polyethylenimine (LMW-PEI)-based supramolecular assembly. It formed via host-guest interaction between PEI (MW = 1.8 kDa)-α-cyclodextrin (α-CD) conjugates and PEI1.8k-phenylboronic acid (PBA) conjugates. The host-guest interaction between PEI1.8k-α-CD and PEI1.8k-PBA was confirmed by the 2D-NOESY chromatogram experiment and competition test. The ATP-responsive property of the supramolecular assembly was evaluated by a series of ATP-triggered degradation and siRNA release studies in terms of fluorescence resonance energy transfer, agarose gel electrophoresis assay, and the time course monitoring of the particle size and morphology. Confocal laser scanning microscopy confirmed the intracellular disassembly of the supramolecular polymer and the release of siRNA. The supramolecular assembly showed high buffering capability and was capable of protecting siRNA from RNase degradation. It had high cytocompatibility according to in vitro cytotoxicity and hemolysis assays. LMW-PEI-based supramolecular assembly facilitated cellular entry of siRNA via energy-dependent endocytosis. Moreover, the assembly/SR-A siRNA polyplexes at N/P ratio of 30 was most effective in knocking down SR-A mRNA and inhibiting uptake of modified LDL. Taken together, this work shows that ATP-responsive LMW-PEI-based supramolecular assembly is a promising gene vector and has potential application in treating atherosclerosis.
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Affiliation(s)
- Cuiping Jiang
- Department of Pharmaceutics , China Pharmaceutical University , Nanjing , Jiangsu 210009 , People's Republic of China
| | - Zitong Qi
- Department of Pharmaceutics , China Pharmaceutical University , Nanjing , Jiangsu 210009 , People's Republic of China
| | - Hengbo Jia
- Department of Pharmaceutics , China Pharmaceutical University , Nanjing , Jiangsu 210009 , People's Republic of China
| | - Yilei Huang
- Department of Pharmaceutics , China Pharmaceutical University , Nanjing , Jiangsu 210009 , People's Republic of China
| | - Yunbo Wang
- Department of Pharmaceutics , China Pharmaceutical University , Nanjing , Jiangsu 210009 , People's Republic of China
| | - Wenli Zhang
- Department of Pharmaceutics , China Pharmaceutical University , Nanjing , Jiangsu 210009 , People's Republic of China
| | - Zimei Wu
- School of Pharmacy , University of Auckland , Private Bag 92019, Auckland , New Zealand
| | - Hu Yang
- Department of Chemical and Life Science Engineering , Virginia Commonwealth University , Richmond , Virginia 23219 , United States.,Department of Pharmaceutics , Virginia Commonwealth University , Richmond , Virginia 23298 , United States.,Massey Cancer Center, Virginia Commonwealth University , Richmond , Virginia 23298 , United States
| | - Jianping Liu
- Department of Pharmaceutics , China Pharmaceutical University , Nanjing , Jiangsu 210009 , People's Republic of China
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7
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Urbiola K, Blanco-Fernández L, Ogris M, Rödl W, Wagner E, Tros de Ilarduya C. Novel PAMAM-PEG-Peptide Conjugates for siRNA Delivery Targeted to the Transferrin and Epidermal Growth Factor Receptors. J Pers Med 2018; 8:jpm8010004. [PMID: 29315261 PMCID: PMC5872078 DOI: 10.3390/jpm8010004] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2017] [Revised: 12/19/2017] [Accepted: 12/27/2017] [Indexed: 12/25/2022] Open
Abstract
The transferrin (TfR) and epidermal growth factor receptors (EGFR) are known to be overexpressed on the surface of a wide variety of tumor cells. Therefore, the peptides B6 (TfR specific) and GE11 (targeted to the EGFR) were linked to the PAMAM (polyamidoamine) structure via a polyethylenglycol (PEG) 2 kDa chain with the aim of improving the silencing capacity of the PAMAM-based dendriplexes. The complexes showed an excellent binding capacity to the siRNA with a maximal condensation at nitrogen/phosphate (N/P) 2. The nanoparticles formed exhibited hydrodynamic diameters below 200 nm. The zeta potential was always positive, despite the complexes containing the PEG chain in the structure showing a drop of the values due to the shielding effect. The gene silencing capacity was assayed in HeLa and LS174T cells stably transfected with the eGFPLuc cassette. The dendriplexes containing a specific anti luciferase siRNA, assayed at different N/P ratios, were able to mediate a mean decrease of the luciferase expression values of 14% for HeLa and 20% in LS174T cells, compared to an unspecific siRNA-control. (p < 0.05). In all the conditions assayed, dendriplexes resulted to be non-toxic and viability was always above 75%.
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Affiliation(s)
- Koldo Urbiola
- Department of Pharmacy and Pharmaceutical Technology, School of Pharmacy, University of Navarra, 31080 Pamplona, Spain; (K.U.); (L.B.-F.)
| | - Laura Blanco-Fernández
- Department of Pharmacy and Pharmaceutical Technology, School of Pharmacy, University of Navarra, 31080 Pamplona, Spain; (K.U.); (L.B.-F.)
| | - Manfred Ogris
- Department of Pharmaceutical Chemistry, Laboratory of MacroMolecular Cancer Therapeutics (MMCT), University of Vienna, 1010 Vienna, Austria;
| | - Wolfgang Rödl
- Pharmaceutical Biotechnology, Center for NanoScience (CeNS), Ludwig-Maximilians-University (LMU) 80799 Munich, Germany; (W.R.); (E.W.)
| | - Ernst Wagner
- Pharmaceutical Biotechnology, Center for NanoScience (CeNS), Ludwig-Maximilians-University (LMU) 80799 Munich, Germany; (W.R.); (E.W.)
| | - Conchita Tros de Ilarduya
- Department of Pharmacy and Pharmaceutical Technology, School of Pharmacy, University of Navarra, 31080 Pamplona, Spain; (K.U.); (L.B.-F.)
- Correspondence: ; Tel.: +34-948-425600 (ext. 80-6375)
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Ceborska M. Folate appended cyclodextrins for drug, DNA, and siRNA delivery. Eur J Pharm Biopharm 2017; 120:133-145. [DOI: 10.1016/j.ejpb.2017.09.005] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2017] [Revised: 09/01/2017] [Accepted: 09/08/2017] [Indexed: 12/11/2022]
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Palmerston Mendes L, Pan J, Torchilin VP. Dendrimers as Nanocarriers for Nucleic Acid and Drug Delivery in Cancer Therapy. Molecules 2017; 22:E1401. [PMID: 28832535 PMCID: PMC5600151 DOI: 10.3390/molecules22091401] [Citation(s) in RCA: 338] [Impact Index Per Article: 48.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2017] [Revised: 08/18/2017] [Accepted: 08/21/2017] [Indexed: 01/09/2023] Open
Abstract
Dendrimers are highly branched polymers with easily modifiable surfaces. This makes them promising structures for functionalization and also for conjugation with drugs and DNA/RNA. Their architecture, which can be controlled by different synthesis processes, allows the control of characteristics such as shape, size, charge, and solubility. Dendrimers have the ability to increase the solubility and bioavailability of hydrophobic drugs. The drugs can be entrapped in the intramolecular cavity of the dendrimers or conjugated to their functional groups at their surface. Nucleic acids usually form complexes with the positively charged surface of most cationic dendrimers and this approach has been extensively employed. The presence of functional groups in the dendrimer's exterior also permits the addition of other moieties that can actively target certain diseases and improve delivery, for instance, with folate and antibodies, now widely used as tumor targeting strategies. Dendrimers have been investigated extensively in the medical field, and cancer treatment is one of the greatest areas where they have been most used. This review will consider the main types of dendrimer currently being explored and how they can be utilized as drug and gene carriers and functionalized to improve the delivery of cancer therapy.
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Affiliation(s)
- Livia Palmerston Mendes
- Center for Pharmaceutical Biotechnology and Nanomedicine, Northeastern University, Boston, MA 02115, USA.
- CAPES Foundation, Ministry of Education of Brazil, Brasilia 70040-020, Brazil.
| | - Jiayi Pan
- Center for Pharmaceutical Biotechnology and Nanomedicine, Northeastern University, Boston, MA 02115, USA.
| | - Vladimir P Torchilin
- Center for Pharmaceutical Biotechnology and Nanomedicine, Northeastern University, Boston, MA 02115, USA.
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A clue to unprecedented strategy to HIV eradication: "Lock-in and apoptosis". Sci Rep 2017; 7:8957. [PMID: 28827668 PMCID: PMC5567282 DOI: 10.1038/s41598-017-09129-w] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2017] [Accepted: 07/24/2017] [Indexed: 11/13/2022] Open
Abstract
Despite the development of antiretroviral therapy against HIV, eradication of the virus from the body, as a means to a cure, remains in progress. A “kick and kill” strategy proposes “kick” of the latent HIV to an active HIV to eventually be “killed”. Latency-reverting agents that can perform the “kick” function are under development and have shown promise. Management of the infected cells not to produce virions after the “kick” step is important to this strategy. Here we show that a newly synthesized compound, L-HIPPO, captures the HIV-1 protein Pr55Gag and intercepts its function to translocate the virus from the cytoplasm to the plasma membrane leading to virion budding. The infecting virus thus “locked-in” subsequently induces apoptosis of the host cells. This “lock-in and apoptosis” approach performed by our novel compound in HIV-infected cells provides a means to bridge the gap between the “kick” and “kill” steps of this eradication strategy. By building upon previous progress in latency reverting agents, our compound appears to provide a promising step toward the goal of HIV eradication from the body.
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11
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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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12
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Wang LL, Burdick JA. Engineered Hydrogels for Local and Sustained Delivery of RNA-Interference Therapies. Adv Healthc Mater 2017; 6:10.1002/adhm.201601041. [PMID: 27976524 PMCID: PMC5226889 DOI: 10.1002/adhm.201601041] [Citation(s) in RCA: 67] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2016] [Revised: 10/21/2016] [Indexed: 12/20/2022]
Abstract
It has been nearly two decades since RNA-interference (RNAi) was first reported. While there are no approved clinical uses, several phase II and III clinical trials suggest the great promise of RNAi therapeutics. One challenge for RNAi therapies is the controlled localization and sustained presentation to target tissues, to both overcome systemic toxicity concerns and to enhance in vivo efficacy. One approach that is emerging to address these limitations is the entrapment of RNAi molecules within hydrogels for local and sustained release. In these systems, nucleic acids are either delivered as siRNA conjugates or within nanoparticles. A plethora of hydrogels has been implemented using these approaches, including both traditional hydrogels that have already been developed for other applications and new hydrogels developed specifically for RNAi delivery. These hydrogels have been applied to various applications in vivo, including cancer, bone regeneration, inflammation and cardiac repair. This review will examine the design and implementation of such hydrogel RNAi systems and will cover the most recent applications of these systems.
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Affiliation(s)
- Leo L. Wang
- Department of Bioengineering, University of Pennsylvania, Philadelphia, PA 19104
| | - Jason A. Burdick
- Department of Bioengineering, University of Pennsylvania, Philadelphia, PA 19104
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13
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Biodegradable nano-polymers as delivery vehicles for therapeutic small non-coding ribonucleic acids. J Control Release 2017; 245:116-126. [DOI: 10.1016/j.jconrel.2016.11.017] [Citation(s) in RCA: 60] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2016] [Accepted: 11/14/2016] [Indexed: 12/20/2022]
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14
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Khaled SZ, Cevenini A, Yazdi IK, Parodi A, Evangelopoulos M, Corbo C, Scaria S, Hu Y, Haddix SG, Corradetti B, Salvatore F, Tasciotti E. One-pot synthesis of pH-responsive hybrid nanogel particles for the intracellular delivery of small interfering RNA. Biomaterials 2016; 87:57-68. [PMID: 26901429 PMCID: PMC4785811 DOI: 10.1016/j.biomaterials.2016.01.052] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2016] [Accepted: 01/25/2016] [Indexed: 12/20/2022]
Abstract
This report describes a novel, one-pot synthesis of hybrid nanoparticles formed by a nanostructured inorganic silica core and an organic pH-responsive hydrogel shell. This easy-to-perform, oil-in-water emulsion process synthesizes fluorescently-doped silica nanoparticles wrapped within a tunable coating of cationic poly(2-diethylaminoethyl methacrylate) hydrogel in one step. Transmission electron microscopy and dynamic light scattering analysis demonstrated that the hydrogel-coated nanoparticles are uniformly dispersed in the aqueous phase. The formation of covalent chemical bonds between the silica and the polymer increases the stability of the organic phase around the inorganic core as demonstrated by thermogravimetric analysis. The cationic nature of the hydrogel is responsible for the pH buffering properties of the nanostructured system and was evaluated by titration experiments. Zeta-potential analysis demonstrated that the charge of the system was reversed when transitioned from acidic to basic pH and vice versa. Consequently, small interfering RNA (siRNA) can be loaded and released in an acidic pH environment thereby enabling the hybrid particles and their payload to avoid endosomal sequestration and enzymatic degradation. These nanoparticles, loaded with specific siRNA molecules directed towards the transcript of the membrane receptor CXCR4, significantly decreased the expression of this protein in a human breast cancer cell line (i.e., MDA-MB-231). Moreover, intravenous administration of siRNA-loaded nanoparticles demonstrated a preferential accumulation at the tumor site that resulted in a reduction of CXCR4 expression.
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Affiliation(s)
- Sm Z. Khaled
- Department of Regenerative Medicine: Center for Biomimetic Medicine, Houston Methodist Research Institute, Houston, Texas, 77030 United States
| | - Armando Cevenini
- Department of Regenerative Medicine: Center for Biomimetic Medicine, Houston Methodist Research Institute, Houston, Texas, 77030 United States
- Department of Molecular Medicine and Medical Biotechnology, University of Naples “Federico II”, Naples, 80131 Italy
- CEINGE-Biotecnologie Avanzate, s.c.a r.l., Naples, 80145 Italy
| | - Iman K. Yazdi
- Department of Regenerative Medicine: Center for Biomimetic Medicine, Houston Methodist Research Institute, Houston, Texas, 77030 United States
- Department of Biomedical Engineering, University of Houston, Houston, Texas, 77204 United States
| | - Alessandro Parodi
- Department of Regenerative Medicine: Center for Biomimetic Medicine, Houston Methodist Research Institute, Houston, Texas, 77030 United States
- Fondazione SDN IRCCS, Naples, 80143 Italy
| | - Michael Evangelopoulos
- Department of Regenerative Medicine: Center for Biomimetic Medicine, Houston Methodist Research Institute, Houston, Texas, 77030 United States
| | - Claudia Corbo
- Department of Regenerative Medicine: Center for Biomimetic Medicine, Houston Methodist Research Institute, Houston, Texas, 77030 United States
- Fondazione SDN IRCCS, Naples, 80143 Italy
| | - Shilpa Scaria
- Department of Regenerative Medicine: Center for Biomimetic Medicine, Houston Methodist Research Institute, Houston, Texas, 77030 United States
| | - Ye Hu
- Department of Nanomedicine, Houston Methodist Research Institute, Houston, Texas, 77030 United States
| | - Seth G. Haddix
- Department of Regenerative Medicine: Center for Biomimetic Medicine, Houston Methodist Research Institute, Houston, Texas, 77030 United States
| | - Bruna Corradetti
- Department of Regenerative Medicine: Center for Biomimetic Medicine, Houston Methodist Research Institute, Houston, Texas, 77030 United States
- Department of Life and Environmental Sciences, Università Politecnica delle Marche, Ancona, 60131 Italy
| | - Francesco Salvatore
- CEINGE-Biotecnologie Avanzate, s.c.a r.l., Naples, 80145 Italy
- Fondazione SDN IRCCS, Naples, 80143 Italy
| | - Ennio Tasciotti
- Department of Regenerative Medicine: Center for Biomimetic Medicine, Houston Methodist Research Institute, Houston, Texas, 77030 United States
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Hibbitts A, O'Mahony AM, Forde E, Nolan L, Ogier J, Desgranges S, Darcy R, MacLoughlin R, O'Driscoll CM, Cryan SA. Early-stage development of novel cyclodextrin-siRNA nanocomplexes allows for successful postnebulization transfection of bronchial epithelial cells. J Aerosol Med Pulm Drug Deliv 2015; 27:466-77. [PMID: 24665866 DOI: 10.1089/jamp.2013.1045] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
BACKGROUND Successful delivery of small interfering RNA (siRNA) to the lungs remains hampered by poor intracellular delivery, vector-mediated cytotoxicity, and an inability to withstand nebulization. Recently, a novel cyclodextrin (CD), SC12CDClickpropylamine, consisting of distinct lipophilic and cationic subunits, has been shown to transfect a number of cell types. However, the suitability of this vector for pulmonary siRNA delivery has not been assessed to date. To address this, a series of high-content analysis (HCA) and postnebulization assays were devised to determine the potential for CD-siRNA delivery to the lungs. METHODS SC12CDClickpropylamine-siRNA mass ratios (MRs) were examined for size and zeta potential. In-depth analysis of nanocomplex uptake and toxicity in Calu-3 bronchial epithelial cells was examined using IN Cell(®) HCA assays. Nebulized SC12CDClickpropylamine nanocomplexes were assessed for volumetric median diameter (VMD) and fine particle fraction (FPF) and compared with saline controls. Finally, postnebulization stability was determined by comparing luciferase knockdown elicited by SC12CDClickpropylamine nanocomplexes before and after nebulization. RESULTS SC12CDClickpropylamine-siRNA complexation formed cationic nanocomplexes of ≤200 nm in size depending on the medium and led to significantly higher levels of siRNA associated with Calu-3 cells compared with RNAiFect-siRNA-treated cells at all MRs (p<0.001, n=3×4), with evidence of toxicity only at MRs 50-100. Nebulization of SC12CDClickpropylamine nanocomplexes using the Aeroneb(®) Pro resulted in VMDs of ∼4 μm and FPFs of ∼57% at all MRs. SC12CDClickpropylamine-siRNA-mediated luciferase knockdown was found to be 39.8±3.6% at MR=20 before and 35.6±4.55% after nebulization, comparable to results observed using unnebulized commercial transfection reagent, RNAiFect. CONCLUSIONS SC12CDClickpropylamine nanocomplexes can be effectively nebulized for pulmonary delivery of siRNA using Aeroneb technology to mediate knockdown in airway cells. To the best of our knowledge, this is the first study examining the suitability of SC12CDClickpropylamine-siRNA nanocomplexes for pulmonary delivery. Furthermore, this work provides an integrated nanomedicine-device combination for future in vitro and in vivo preclinical and clinical studies of inhaled siRNA therapeutics.
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Affiliation(s)
- A Hibbitts
- 1 School of Pharmacy, Royal College of Surgeons in Ireland , Dublin, Ireland
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16
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Motoyama K, Mitsuyasu R, Akao C, Abu Hashim II, Sato N, Tanaka T, Higashi T, Arima H. Potential Use of Thioalkylated Mannose-Modified Dendrimer (G3)/α-Cyclodextrin Conjugate as an NF-κB siRNA Carrier for the Treatment of Fulminant Hepatitis. Mol Pharm 2015; 12:3129-36. [DOI: 10.1021/mp500814f] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Keiichi Motoyama
- Department
of Physical Pharmaceutics, Graduate School of Pharmaceutical Sciences, Kumamoto University, 5-1 Oe-honmachi, Chuo-ku, Kumamoto 862-0973, Japan
| | - Ryosuke Mitsuyasu
- Department
of Physical Pharmaceutics, Graduate School of Pharmaceutical Sciences, Kumamoto University, 5-1 Oe-honmachi, Chuo-ku, Kumamoto 862-0973, Japan
| | - Chiho Akao
- Department
of Physical Pharmaceutics, Graduate School of Pharmaceutical Sciences, Kumamoto University, 5-1 Oe-honmachi, Chuo-ku, Kumamoto 862-0973, Japan
| | - Irhan Ibrahim Abu Hashim
- Department
of Physical Pharmaceutics, Graduate School of Pharmaceutical Sciences, Kumamoto University, 5-1 Oe-honmachi, Chuo-ku, Kumamoto 862-0973, Japan
- Faculty
of Pharmacy, Mansoura University, Mansoura 35516, Egypt
| | - Nana Sato
- Department
of Physical Pharmaceutics, Graduate School of Pharmaceutical Sciences, Kumamoto University, 5-1 Oe-honmachi, Chuo-ku, Kumamoto 862-0973, Japan
| | - Takahiro Tanaka
- Department
of Physical Pharmaceutics, Graduate School of Pharmaceutical Sciences, Kumamoto University, 5-1 Oe-honmachi, Chuo-ku, Kumamoto 862-0973, Japan
| | - Taishi Higashi
- Department
of Physical Pharmaceutics, Graduate School of Pharmaceutical Sciences, Kumamoto University, 5-1 Oe-honmachi, Chuo-ku, Kumamoto 862-0973, Japan
| | - Hidetoshi Arima
- Department
of Physical Pharmaceutics, Graduate School of Pharmaceutical Sciences, Kumamoto University, 5-1 Oe-honmachi, Chuo-ku, Kumamoto 862-0973, Japan
- Program
for Leading Graduate Schools “HIGO (Health Life Science: Interdisciplinary
and Glocal Oriented) Program”, Kumamoto University, Kumamoto, Japan
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Dehshahri A, Sadeghpour H. Surface decorations of poly(amidoamine) dendrimer by various pendant moieties for improved delivery of nucleic acid materials. Colloids Surf B Biointerfaces 2015; 132:85-102. [DOI: 10.1016/j.colsurfb.2015.05.006] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2014] [Revised: 05/05/2015] [Accepted: 05/07/2015] [Indexed: 12/22/2022]
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18
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Arima H, Hayashi Y, Higashi T, Motoyama K. Recent advances in cyclodextrin delivery techniques. Expert Opin Drug Deliv 2015; 12:1425-41. [DOI: 10.1517/17425247.2015.1026893] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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19
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20
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Li CY, Wang HJ, Cao JM, Zhang J, Yu XQ. Bioreducible cross-linked polymers based on G1 peptide dendrimer as potential gene delivery vectors. Eur J Med Chem 2014; 87:413-20. [PMID: 25282264 DOI: 10.1016/j.ejmech.2014.09.091] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2014] [Revised: 09/04/2014] [Accepted: 09/29/2014] [Indexed: 01/18/2023]
Abstract
A series of cationic polymers based on low generation (G1) peptide dendrimer were synthesized with disulfide-containing linkages. The DNA binding abilities of the target polymers were studied by gel electrophoresis and fluorescence quenching assay. The bioreducible property of the disulfide-containing polymers P2 and P3 was also investigated in the presence of dithiothreitol (DTT). Results from dynamic light scattering (DLS) and transmission electron microscopy (TEM) assays reveal that these materials may condense DNA into nanoparticles with proper sizes and zeta-potentials. In vitro cell experiments show that compared to branched 25 KDa PEI, P2 and P3 may exhibit much higher gene transfection efficiency and lower cytotoxicity in both HEK293 and U-2OS cells. Additionally, polymer prepared from Michael addition gives better gene transfection ability, while polymer prepared from ring-opening reaction has better serum tolerance. Results indicate that these polymers might be promising non-viral gene vectors for their easy preparation, very low cytotoxicity, and good transfection efficiency.
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Affiliation(s)
- Chun-Yan Li
- Key Laboratory of Green Chemistry and Technology (Ministry of Education), College of Chemistry, Sichuan University, Chengdu 610064, PR China
| | - Hai-Jiao Wang
- Key Laboratory of Green Chemistry and Technology (Ministry of Education), College of Chemistry, Sichuan University, Chengdu 610064, PR China
| | - Jing-Ming Cao
- Key Laboratory of Green Chemistry and Technology (Ministry of Education), College of Chemistry, Sichuan University, Chengdu 610064, PR China
| | - Ji Zhang
- Key Laboratory of Green Chemistry and Technology (Ministry of Education), College of Chemistry, Sichuan University, Chengdu 610064, PR China.
| | - Xiao-Qi Yu
- Key Laboratory of Green Chemistry and Technology (Ministry of Education), College of Chemistry, Sichuan University, Chengdu 610064, PR China.
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21
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Motoyama K, Mitsuyasu R, Akao C, Tanaka T, Ohyama A, Sato N, Higashi T, Arima H. Design and evaluation of thioalkylated mannose-modified dendrimer (G3)/α-cyclodextrin conjugates as antigen-presenting cell-selective siRNA carriers. AAPS JOURNAL 2014; 16:1298-308. [PMID: 25236864 DOI: 10.1208/s12248-014-9665-9] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/10/2014] [Accepted: 09/03/2014] [Indexed: 11/30/2022]
Abstract
To design and evaluate the potential use of thioalkylated mannose-modified dendrimer (generation 3; G3) conjugates with α-cyclodextrin (Man-S-α-CDE (G3)) as novel antigen-presenting cell (APC)-selective siRNA carriers, we investigated the RNAi effects of siRNA complexes with Man-S-α-CDEs (G3). Man-S-α-CDE (G3, average degree of substitution of mannose (DSM) 4)/siRNA complex had the potent RNAi effects in both NR8383 cells, a rat alveolar macrophage cell line, and JAWSII cells, a mouse dendritic cell line, through adequate physicochemical properties, mannose receptor (MR)-mediated cellular uptake, and efficient phagosomal escape of the siRNA complex. In addition, cytotoxic activities of the siRNA complexes with α-CDE (G3, DS2) and Man-S-α-CDE (G3, DSM4) were almost negligible up to a charge ratio of 100 (carrier/siRNA). Taken together, these results suggest that Man-S-α-CDE (G3, DSM4) has the potential for a novel APC-selective siRNA carrier.
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Affiliation(s)
- Keiichi Motoyama
- Department of Physical Pharmaceutics, Graduate School of Pharmaceutical Sciences, Kumamoto University, 5-1 Oe-honmachi, Chuo-ku, Kumamoto, 862-0973, Japan
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22
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Anno T, Higashi T, Hayashi Y, Motoyama K, Jono H, Ando Y, Arima H. Potential use of glucuronylglucosyl-β-cyclodextrin/dendrimer conjugate (G2) as a siRNA carrier for the treatment of familial amyloidotic polyneuropathy. J Drug Target 2014; 22:883-90. [DOI: 10.3109/1061186x.2014.939984] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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23
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Cyclodextrins. POLYSACCHARIDES 2014. [DOI: 10.1007/978-3-319-03751-6_22-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022] Open
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24
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Dendrimers as carriers for siRNA delivery and gene silencing: a review. ScientificWorldJournal 2013; 2013:630654. [PMID: 24288498 PMCID: PMC3830781 DOI: 10.1155/2013/630654] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2013] [Accepted: 09/19/2013] [Indexed: 12/12/2022] Open
Abstract
RNA interference (RNAi) was first literaturally reported in 1998 and has become rapidly a promising tool for therapeutic applications in gene therapy. In a typical RNAi process, small interfering RNAs (siRNA) are used to specifically downregulate the expression of the targeted gene, known as the term "gene silencing." One key point for successful gene silencing is to employ a safe and efficient siRNA delivery system. In this context, dendrimers are emerging as potential nonviral vectors to deliver siRNA for RNAi purpose. Dendrimers have attracted intense interest since their emanating research in the 1980s and are extensively studied as efficient DNA delivery vectors in gene transfer applications, due to their unique features based on the well-defined and multivalent structures. Knowing that DNA and RNA possess a similar structure in terms of nucleic acid framework and the electronegative nature, one can also use the excellent DNA delivery properties of dendrimers to develop effective siRNA delivery systems. In this review, the development of dendrimer-based siRNA delivery vectors is summarized, focusing on the vector features (siRNA delivery efficiency, cytotoxicity, etc.) of different types of dendrimers and the related investigations on structure-activity relationship to promote safe and efficient siRNA delivery system.
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25
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Cao D, Qin L, Huang H, Feng M, Pan S, Chen J. Transfection activity and the mechanism of pDNA-complexes based on the hybrid of low-generation PAMAM and branched PEI-1.8k. MOLECULAR BIOSYSTEMS 2013; 9:3175-86. [PMID: 24126459 DOI: 10.1039/c3mb70261h] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Cationic polymers have been regarded as promising non-viral gene carriers because of their advantages over viral gene vectors, such as low cost, a high level of safety and easy manipulation. However, their poor transfection efficiency in the presence of serum and high toxicity are still limiting issues for clinical applications. In addition, the lack of adequate understanding of the gene delivery mechanism hinders their development to some extent. In this study, new polycations (PAPEs) consisting of a low generation polyamidoamine (PAMAM) core and branched polyethyleneimine (PEI-1.8k) outer layers were synthesized and their transfection activity and mechanism were studied. PAPEs were characterized by FTIR, (1)H NMR and gel permeation chromatography. PAPEs were able to self-assemble with pDNA and form spherical nanoparticles with sizes of 70-204 nm and zeta potentials of 13-33 mV. Importantly, the PAPE-pDNA complexes displayed lower cytotoxicity and higher transfection activity than PEI 25k in various cell lines, specifically in the presence of serum. The transfection mechanism was evaluated by endocytosis inhibition with specific inhibitors, time-dependent transfection, and intracellular trafficking inspection by CLSM. The high levels of transgene expression mediated by PAPEs were attributed to caveolae-mediated cellular uptake, the reduced entry into lysosomes and the entry into the nucleus through mitosis.
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Affiliation(s)
- Duanwen Cao
- Department of Pharmaceutical Science, Nanfang Hospital, Southern Medical University, Guangzhou 510515, and Cardiovascular Laboratory, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, China.
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26
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Arima H, Motoyama K, Higashi T. Sugar-appended polyamidoamine dendrimer conjugates with cyclodextrins as cell-specific non-viral vectors. Adv Drug Deliv Rev 2013; 65:1204-14. [PMID: 23602906 DOI: 10.1016/j.addr.2013.04.001] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2012] [Revised: 03/26/2013] [Accepted: 04/10/2013] [Indexed: 12/31/2022]
Abstract
The widespread use of various cyclodextrin (CyD)-appended polymers and polyrotaxanes as gene carriers has been reported. Among the various polyamidoamine dendrimer (dendrimer) conjugates with CyDs (CDE), the dendrimer (G3) conjugate with α-CyD having an average degree of substitution (DS) of 2.4 (α-CDE (G3, DS 2)) displayed remarkable properties as DNA carriers. In an attempt to develop cell-specific gene transfer carriers, we prepared some sugar-appended α-CDEs, e.g. mannosylated, galactosylated, and lactosylated α-CDEs. In addition, PEGylated Lac-α-CDEs (G3) were prepared and evaluated as a hepatocyte-selective and serum-resistant gene transfer carrier. Moreover, PEGylated-α-CDE/CyD polypseudorotaxane systems for novel sustained DNA release system have been developed. Interestingly, glucronylglucosyl-β-cyclodextrin (GUG-β-CyD) conjugates with dendrimer (G2) (GUG-β-CDE (G2)) had superior gene transfer activity to α-CDE (G2), expecting a development of new series of sugar-appended CDEs over α-CDEs (G2). Collectively, sugar-appended α-CDEs have the potential as novel cell-specific and safe carriers for DNA.
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Affiliation(s)
- Hidetoshi Arima
- Graduate School of Pharmaceutical Sciences, Kumamoto University, 5-1Oe-honmachi, Chuo-ku, Kumamoto 862-0973, Japan.
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27
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Li G, Hu Z, Yin H, Zhang Y, Huang X, Wang S, Li W. A novel dendritic nanocarrier of polyamidoamine-polyethylene glycol-cyclic RGD for "smart" small interfering RNA delivery and in vitro antitumor effects by human ether-à-go-go-related gene silencing in anaplastic thyroid carcinoma cells. Int J Nanomedicine 2013; 8:1293-306. [PMID: 23569377 PMCID: PMC3615931 DOI: 10.2147/ijn.s41555] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
The application of RNA interference techniques is promising in gene therapeutic approaches, especially for cancers. To improve safety and efficiency of small interfering RNA (siRNA) delivery, a triblock dendritic nanocarrier, polyamidoamine-polyethylene glycol-cyclic RGD (PAMAM-PEG-cRGD), was developed and studied as an siRNA vector targeting the human ether-à-go-go-related gene (hERG) in human anaplastic thyroid carcinoma cells. Structure characterization, particle size, zeta potential, and gel retardation assay confirmed that complete triblock components were successfully synthesized with effective binding capacity of siRNA in this triblock nanocarrier. Cytotoxicity data indicated that conjugation of PEG significantly alleviated cytotoxicity when compared with unmodified PAMAM. PAMAM-PEG-cRGD exerted potent siRNA cellular internalization in which transfection efficiency measured by flow cytometry was up to 68% when the charge ratio (N/P ratio) was 3.5. Ligand-receptor affinity together with electrostatic interaction should be involved in the nano-siRNA endocytosis mechanism and we then proved that attachment of cRGD enhanced cellular uptake via RGD-integrin recognition. Gene silencing was evaluated by reverse transcription polymerase chain reaction and PAMAM-PEG-cRGD-siRNA complex downregulated the expression of hERG to 26.3% of the control value. Furthermore, gene knockdown of hERG elicited growth suppression as well as activated apoptosis by means of abolishing vascular endothelial growth factor secretion and triggering caspase-3 cascade in anaplastic thyroid carcinoma cells. Our study demonstrates that this novel triblock polymer, PAMAM-PEG-cRGD, exhibits negligible cytotoxicity, effective transfection, “smart” cancer targeting, and therefore is a promising siRNA nanocarrier.
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Affiliation(s)
- Guanhua Li
- Department of Vascular and Thyroid Surgery, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, People's Republic of China
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28
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Multilineage differentiation of human-derived dermal fibroblasts transfected with genes coated on PLGA nanoparticles plus growth factors. Biomaterials 2013; 34:582-97. [DOI: 10.1016/j.biomaterials.2012.10.001] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2012] [Accepted: 10/01/2012] [Indexed: 01/04/2023]
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29
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Guo J, Ogier JR, Desgranges S, Darcy R, O′Driscoll C. Anisamide-targeted cyclodextrin nanoparticles for siRNA delivery to prostate tumours in mice. Biomaterials 2012; 33:7775-84. [DOI: 10.1016/j.biomaterials.2012.07.012] [Citation(s) in RCA: 96] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2012] [Accepted: 07/05/2012] [Indexed: 12/14/2022]
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30
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Arima H, Yoshimatsu A, Ikeda H, Ohyama A, Motoyama K, Higashi T, Tsuchiya A, Niidome T, Katayama Y, Hattori K, Takeuchi T. Folate-PEG-appended dendrimer conjugate with α-cyclodextrin as a novel cancer cell-selective siRNA delivery carrier. Mol Pharm 2012; 9:2591-604. [PMID: 22873579 DOI: 10.1021/mp300188f] [Citation(s) in RCA: 76] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
We previously reported that of the various polyamidoamine (PAMAM) STARBURST dendrimer (generation 3, G3) (dendrimer) conjugates with cyclodextrins (CyDs), the dendrimer (G3) conjugate with α-CyD having an average degree of substitution of 2.4 (α-CDE (G3)) has the greatest potential for a novel carrier for siRNA in vitro and in vivo. To improve the siRNA transfer activity and the lack of target specificity of α-CDE (G3), we prepared folate-polyethylene glycol (PEG)-appended α-CDEs (G3) (Fol-PαCs) with various degrees of substitution of folate (DSF) and evaluated their siRNA transfer activity to folate receptor (FR)-overexpressing cancer cells in vitro and in vivo. Of the three Fol-PαCs (G3, DSF 2, 4 and 7), Fol-PαC (G3, DSF 4) had the highest siRNA transfer activity in KB cells (FR-positive). Fol-PαC (G3, DSF 4) was endocytosed into KB cells through FR. No cytotoxicity of the siRNA complex with Fol-PαC (G3, DSF 4) was observed in KB cells (FR-positive) or A549 cells (FR-negative) up to the charge ratio of 100/1 (carrier/siRNA). In addition, the siRNA complex with Fol-PαC (G3, DSF 4) showed neither interferon response nor inflammatory response. Importantly, the siRNA complex with Fol-PαC (G3, DSF 4) tended to show the in vivo RNAi effects after intratumoral injection and intravenous injection in tumor cells-bearing mice. The FITC-labeled siRNA and TRITC-labeled Fol-PαC (G3, DSF 4) were actually accumulated in tumor tissues after intravenous injection in the mice. In conclusion, the present results suggest that Fol-PαC (G3, DSF 4) could potentially be used as a FR-overexpressing cancer cell-selective siRNA delivery carrier in vitro and in vivo.
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Affiliation(s)
- Hidetoshi Arima
- Department of Physical Pharmaceutics, Graduate School of Pharmaceutical Sciences, Kumamoto University, 5-1 Oe-honmachi, Chuo-ku, Kumamoto 862-0973, Japan.
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31
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Wu ZW, Chien CT, Liu CY, Yan JY, Lin SY. Recent progress in copolymer-mediated siRNA delivery. J Drug Target 2012; 20:551-60. [DOI: 10.3109/1061186x.2012.699057] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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32
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Hayashi Y, Mori Y, Higashi T, Motoyama K, Jono H, Sah DWY, Ando Y, Arima H. Systemic delivery of transthyretin siRNA mediated by lactosylated dendrimer/α-cyclodextrin conjugates into hepatocyte for familial amyloidotic polyneuropathy therapy. Amyloid 2012; 19 Suppl 1:47-9. [PMID: 22519861 DOI: 10.3109/13506129.2012.674581] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
RNA interference (RNAi) is a sequence-specific gene-silencing mechanism triggered by double-stranded RNA and powerful tools for a gene function study and RNAi therapy. Although siRNAs offer several advantages as potential new drugs to treat various diseases, the efficient delivery system of siRNAs in vivo remains a crucial challenge for achieving the desired RNAi effect in clinical development. In particular, when considering the siRNA therapeutics for familial amyloidotic polyneuropathy (FAP) caused by the deposition of variant transthyretin (TTR) in various organs, hepatocyte-selective siRNA delivery is desired because TTR is predominantly synthesized by hepatocytes. In this study, to reveal the potential use of lactosylated dendrimer (G3)/α-cyclodextrin conjugate (Lac-α-CDE (G3)) as novel hepatocyte-selective siRNA carriers in order to treat FAP, we evaluated the RNAi effect of siRNA complex with Lac-α-CDE (G3) both in vitro and in vivo.
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Affiliation(s)
- Yuya Hayashi
- Graduate School of Pharmaceutical Sciences, Kumamoto University, Japan
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33
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Jeon SY, Park JS, Yang HN, Woo DG, Park KH. Co-delivery of SOX9 genes and anti-Cbfa-1 siRNA coated onto PLGA nanoparticles for chondrogenesis of human MSCs. Biomaterials 2012; 33:4413-23. [DOI: 10.1016/j.biomaterials.2012.02.051] [Citation(s) in RCA: 81] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2012] [Accepted: 02/27/2012] [Indexed: 01/09/2023]
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34
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Hayashi Y, Mori Y, Yamashita S, Motoyama K, Higashi T, Jono H, Ando Y, Arima H. Potential Use of Lactosylated Dendrimer (G3)/α-Cyclodextrin Conjugates as Hepatocyte-Specific siRNA Carriers for the Treatment of Familial Amyloidotic Polyneuropathy. Mol Pharm 2012; 9:1645-53. [DOI: 10.1021/mp200654g] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Yuya Hayashi
- Department of Physical Pharmaceutics,
Graduate School of Pharmaceutical Sciences, Kumamoto University, 5-1
Oe-honmachi, Kumamoto 862-0973, Japan
| | - Yoshimasa Mori
- Department of Physical Pharmaceutics,
Graduate School of Pharmaceutical Sciences, Kumamoto University, 5-1
Oe-honmachi, Kumamoto 862-0973, Japan
| | - Shogo Yamashita
- Department of Physical Pharmaceutics,
Graduate School of Pharmaceutical Sciences, Kumamoto University, 5-1
Oe-honmachi, Kumamoto 862-0973, Japan
| | - Keiichi Motoyama
- Department of Physical Pharmaceutics,
Graduate School of Pharmaceutical Sciences, Kumamoto University, 5-1
Oe-honmachi, Kumamoto 862-0973, Japan
| | - Taishi Higashi
- Department of Physical Pharmaceutics,
Graduate School of Pharmaceutical Sciences, Kumamoto University, 5-1
Oe-honmachi, Kumamoto 862-0973, Japan
| | - Hirofumi Jono
- Department of Diagnostic Medicine,
Graduate School of Medical Sciences, Kumamoto University, 1-1-1 Honjo,
Kumamoto 860-8556, Japan
| | - Yukio Ando
- Department of Diagnostic Medicine,
Graduate School of Medical Sciences, Kumamoto University, 1-1-1 Honjo,
Kumamoto 860-8556, Japan
| | - Hidetoshi Arima
- Department of Physical Pharmaceutics,
Graduate School of Pharmaceutical Sciences, Kumamoto University, 5-1
Oe-honmachi, Kumamoto 862-0973, Japan
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35
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Polyamidoamine Dendrimer Conjugates with Cyclodextrins as Novel Carriers for DNA, shRNA and siRNA. Pharmaceutics 2012; 4:130-48. [PMID: 24300184 PMCID: PMC3834900 DOI: 10.3390/pharmaceutics4010130] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2012] [Revised: 01/20/2012] [Accepted: 01/20/2012] [Indexed: 11/27/2022] Open
Abstract
Gene, short hairpin RNA (shRNA) and small interfering RNA (siRNA) delivery can be particularly used for the treatment of diseases by the entry of genetic materials mammalian cells either to express new proteins or to suppress the expression of proteins, respectively. Polyamidoamine (PAMAM) StarburstTM dendrimers are used as non-viral vectors (carriers) for gene, shRNA and siRNA delivery. Recently, multifunctional PAMAM dendrimers can be used for the wide range of biomedical applications including intracellular delivery of genes and nucleic acid drugs. In this context, this review paper provides the recent findings on PAMAM dendrimer conjugates with cyclodextrins (CyDs) for gene, shRNA and siRNA delivery.
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Arima H, Motoyama K, Higashi T. Potential Use of Polyamidoamine Dendrimer Conjugates with Cyclodextrins as Novel Carriers for siRNA. Pharmaceuticals (Basel) 2011; 5:61-78. [PMID: 24288043 PMCID: PMC3763628 DOI: 10.3390/ph5010061] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2011] [Revised: 12/20/2011] [Accepted: 12/21/2011] [Indexed: 02/07/2023] Open
Abstract
Cyclodextrin (CyD)-based nanoparticles and polyamidoamine (PAMAM) starburst dendrimers (dendrimers) are used as novel carriers for DNA and RNA. Recently, small interfering RNA (siRNA) complex with β-CyD-containing polycations (CDP) having adamantine-PEG or adamantine-PEG-transferrin underwent a phase I study for treatment of solid tumors. Multifunctional dendrimers can be used for a wide range of biomedical applications, including the interaction and intracellular delivery of DNA and RNA. The present review will address the latest developments in dendrimer conjugates with cyclodextrins for siRNA delivery including the novel sustained release system.
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Affiliation(s)
- Hidetoshi Arima
- Graduate School of Pharmaceutical Sciences, Kumamoto University, 5-1 Oe-honmachi, Kumamoto 862-0973, Japan.
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