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Ma M, Zhang C, Zhong Z, Wang Y, He X, Zhu D, Qian Z, Yu B, Kang X. siRNA incorporated in slow-release injectable hydrogel continuously silences DDIT4 and regulates nucleus pulposus cell pyroptosis through the ROS/TXNIP/NLRP3 axis to alleviate intervertebral disc degeneration. Bone Joint Res 2024; 13:247-260. [PMID: 38771134 PMCID: PMC11107476 DOI: 10.1302/2046-3758.135.bjr-2023-0320.r1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 05/22/2024] Open
Abstract
Aims In this investigation, we administered oxidative stress to nucleus pulposus cells (NPCs), recognized DNA-damage-inducible transcript 4 (DDIT4) as a component in intervertebral disc degeneration (IVDD), and devised a hydrogel capable of conveying small interfering RNA (siRNA) to IVDD. Methods An in vitro model for oxidative stress-induced injury in NPCs was developed to elucidate the mechanisms underlying the upregulation of DDIT4 expression, activation of the reactive oxygen species (ROS)-thioredoxin-interacting protein (TXNIP)-NLRP3 signalling pathway, and nucleus pulposus pyroptosis. Furthermore, the mechanism of action of small interfering DDIT4 (siDDIT4) on NPCs in vitro was validated. A triplex hydrogel named siDDIT4@G5-P-HA was created by adsorbing siDDIT4 onto fifth-generation polyamidoamine (PAMAM) dendrimer using van der Waals interactions, and then coating it with hyaluronic acid (HA). In addition, we established a rat puncture IVDD model to decipher the hydrogel's mechanism in IVDD. Results A correlation between DDIT4 expression levels and disc degeneration was shown with human nucleus pulposus and needle-punctured rat disc specimens. We confirmed that DDIT4 was responsible for activating the ROS-TXNIP-NLRP3 axis during oxidative stress-induced pyroptosis in rat nucleus pulposus in vitro. Mitochondria were damaged during oxidative stress, and DDIT4 contributed to mitochondrial damage and ROS production. In addition, siDDIT4@G5-P-HA hydrogels showed good delivery activity of siDDIT4 to NPCs. In vitro studies illustrated the potential of the siDDIT4@G5-P-HA hydrogel for alleviating IVDD in rats. Conclusion DDIT4 is a key player in mediating pyroptosis and IVDD in NPCs through the ROS-TXNIP-NLRP3 axis. Additionally, siDDIT4@G5-P-HA hydrogel has been found to relieve IVDD in rats. Our research offers an innovative treatment option for IVDD.
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Affiliation(s)
- Miao Ma
- The Second Clinical Medical College, Lanzhou University, Lanzhou, China
- Department of Orthopaedics, Lanzhou University Second Hospital, Lanzhou, China
| | - Chongjing Zhang
- Department of Sports Medicine, The Second Affiliated Hospital of Fujian Traditional Chinese Medical University, Fuzhou, China
| | - Zeyuan Zhong
- Department of Orthopaedics, Ruijin Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Yajun Wang
- Department of Oncology, Zhangye People’s Hospital Affiliated to Hexi University, Zhangye, China
| | - Xuegang He
- The Second Clinical Medical College, Lanzhou University, Lanzhou, China
- Department of Orthopaedics, Lanzhou University Second Hospital, Lanzhou, China
| | - Daxue Zhu
- The Second Clinical Medical College, Lanzhou University, Lanzhou, China
- Department of Orthopaedics, Lanzhou University Second Hospital, Lanzhou, China
| | - Zhi Qian
- Department of Joint and Sports Medicine, Institute of Orthopaedic Diseases, Zhangye People's Hospital Affiliated to Hexi University, Zhangye, China
| | - Baoqing Yu
- Shanghai Seventh People’s Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Xuewen Kang
- The Second Clinical Medical College, Lanzhou University, Lanzhou, China
- Department of Orthopaedics, Lanzhou University Second Hospital, Lanzhou, China
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Xiao L, Zhao Y, Yang M, Luan G, Du T, Deng S, Jia X. A promising nucleic acid therapy drug: DNAzymes and its delivery system. Front Mol Biosci 2023; 10:1270101. [PMID: 37753371 PMCID: PMC10518456 DOI: 10.3389/fmolb.2023.1270101] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Accepted: 08/29/2023] [Indexed: 09/28/2023] Open
Abstract
Based on the development of nucleic acid therapeutic drugs, DNAzymes obtained through in vitro selection technology in 1994 are gradually being sought. DNAzymes are single-stranded DNA molecules with catalytic function, which specifically cleave RNA under the action of metal ions. Various in vivo and in vitro models have recently demonstrated that DNAzymes can target related genes in cancer, cardiovascular disease, bacterial and viral infection, and central nervous system disease. Compared with other nucleic acid therapy drugs, DNAzymes have gained more attention due to their excellent cutting efficiency, high stability, and low cost. Here, We first briefly reviewed the development and characteristics of DNAzymes, then discussed disease-targeting inhibition model of DNAzymes, hoping to provide new insights and ways for disease treatment. Finally, DNAzymes were still subject to some restrictions in practical applications, including low cell uptake efficiency, nuclease degradation and interference from other biological matrices. We discussed the latest delivery strategy of DNAzymes, among which lipid nanoparticles have recently received widespread attention due to the successful delivery of the COVID-19 mRNA vaccine, which provides the possibility for the subsequent clinical application of DNAzymes. In addition, the future development of DNAzymes was prospected.
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Affiliation(s)
- Lang Xiao
- School of Basic Medical Sciences, Chengdu Medical College, Chengdu, Sichuan, China
- Sichuan Key Laboratory of Noncoding RNA and Drugs, Chengdu Medical College, Chengdu, Sichuan, China
| | - Yan Zhao
- Life Science and Engineering, Southwest Jiaotong University, Chengdu, Sichuan, China
| | - Meng Yang
- School of Basic Medical Sciences, Chengdu Medical College, Chengdu, Sichuan, China
- Sichuan Key Laboratory of Noncoding RNA and Drugs, Chengdu Medical College, Chengdu, Sichuan, China
| | - Guangxin Luan
- School of Basic Medical Sciences, Chengdu Medical College, Chengdu, Sichuan, China
- Sichuan Key Laboratory of Noncoding RNA and Drugs, Chengdu Medical College, Chengdu, Sichuan, China
| | - Ting Du
- School of Basic Medical Sciences, Chengdu Medical College, Chengdu, Sichuan, China
- Sichuan Key Laboratory of Noncoding RNA and Drugs, Chengdu Medical College, Chengdu, Sichuan, China
| | - Shanshan Deng
- School of Basic Medical Sciences, Chengdu Medical College, Chengdu, Sichuan, China
- Sichuan Key Laboratory of Noncoding RNA and Drugs, Chengdu Medical College, Chengdu, Sichuan, China
| | - Xu Jia
- School of Basic Medical Sciences, Chengdu Medical College, Chengdu, Sichuan, China
- Sichuan Key Laboratory of Noncoding RNA and Drugs, Chengdu Medical College, Chengdu, Sichuan, China
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Thuy LT, Choi M, Lee M, Choi JS. Preparation and characterization of polyamidoamine dendrimers conjugated with cholesteryl-dipeptide as gene carriers in HeLa cells. JOURNAL OF BIOMATERIALS SCIENCE. POLYMER EDITION 2022; 33:976-994. [PMID: 35038285 DOI: 10.1080/09205063.2022.2030657] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
Improving the transfection efficiency of non-viral carriers by using cationic polymers is a useful approach to addressing several challenges in gene therapy, such as cellular uptake, endosomal escape, and toxicity. Among the various cationic polymers, polyamidoamine (PAMAM) dendrimers have been widely utilized because of the abundance of terminal functional groups, thereby enabling further functionalization and enhancing DNA condensation and internalization into cells. The combination of various functional groups is required for these PAMAM dendrimer derivatives to function appropriately for gene delivery. Herein, we synthesized PAMAM G2-HRChol by conjugating dipeptide (histidine-arginine) and cholesterol at different ratios (6% or 23%) on the surface of PAMAM dendrimer generation 2 (PAMAM G2). Both PAMAM G2-HRChol 6% and PAMAM G2-HRChol 23% have buffering capacity, leading to improved endosomal escape after entering the cells. PAMAM G2-HRChol 6% and PAMAM G2-HRChol 23% dendrimers were condensed with pDNA to form nano-polyplexes at a weight ratio of 4 (polymer/pDNA). Polyplexes are positively charged, which facilitates cellular uptake. The transfection efficiency of PAMAM G2-HRChol 6% and PAMAM G2-HRChol 23% dendrimers was similar to that of PEI 25 kDa under optimum conditions, and the cytotoxicity was much lower than that of PEI 25 kDa in HeLa cells. In addition, after apoptin gene transfection was performed, cell death ratios of 34.47% and 22.47% were observed for PAMAM G2-HRChol 6% and PAMAM G2-HRChol 23%, respectively. The results show that a suitable amount of cholesterol can improve gene transfection efficiency, and the PAMAM G2-HRChol 6% dendrimer could be a potential gene carrier in HeLa cells.
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Affiliation(s)
- Le Thi Thuy
- Department of Biochemistry, Chungnam National University, Daejeon, Republic of Korea
| | - Minyoung Choi
- Department of Biochemistry, Chungnam National University, Daejeon, Republic of Korea
| | - Minhyung Lee
- Department of Bioengineering, College of Engineering, Hanyang University, Seoul, Republic of Korea
| | - Joon Sig Choi
- Department of Biochemistry, Chungnam National University, Daejeon, Republic of Korea
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Rai M, Ingle AP, Trzcińska-Wencel J, Wypij M, Bonde S, Yadav A, Kratošová G, Golińska P. Biogenic Silver Nanoparticles: What We Know and What Do We Need to Know? NANOMATERIALS (BASEL, SWITZERLAND) 2021; 11:2901. [PMID: 34835665 PMCID: PMC8624974 DOI: 10.3390/nano11112901] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/16/2021] [Revised: 10/15/2021] [Accepted: 10/27/2021] [Indexed: 12/20/2022]
Abstract
Nanobiotechnology is considered to be one of the fastest emerging fields. It is still a relatively new and exciting area of research with considerable potential for development. Among the inorganic nanomaterials, biogenically synthesized silver nanoparticles (bio-AgNPs) have been frequently used due to their unique physicochemical properties that result not only from their shape and size but also from surface coatings of natural origin. These properties determine antibacterial, antifungal, antiprotozoal, anticancer, anti-inflammatory, and many more activities of bio-AgNPs. This review provides the current state of knowledge on the methods and mechanisms of biogenic synthesis of silver nanoparticles as well as their potential applications in different fields such as medicine, food, agriculture, and industries.
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Affiliation(s)
- Mahendra Rai
- Faculty of Biological and Veterinary Sciences, Nicolaus Copernicus University in Toruń, Lwowska 1, 87-100 Toruń, Poland; (J.T.-W.); (M.W.)
- Department of Biotechnology, Sant Gadge Baba Amravati University, Amravati 444602, India; (S.B.); (A.Y.)
| | - Avinash P. Ingle
- Biotechnology Centre, Department of Agricultural Botany, Dr. Panjabrao Deshmukh Krishi Vidyapeeth, Akola 444104, India;
| | - Joanna Trzcińska-Wencel
- Faculty of Biological and Veterinary Sciences, Nicolaus Copernicus University in Toruń, Lwowska 1, 87-100 Toruń, Poland; (J.T.-W.); (M.W.)
| | - Magdalena Wypij
- Faculty of Biological and Veterinary Sciences, Nicolaus Copernicus University in Toruń, Lwowska 1, 87-100 Toruń, Poland; (J.T.-W.); (M.W.)
| | - Shital Bonde
- Department of Biotechnology, Sant Gadge Baba Amravati University, Amravati 444602, India; (S.B.); (A.Y.)
| | - Alka Yadav
- Department of Biotechnology, Sant Gadge Baba Amravati University, Amravati 444602, India; (S.B.); (A.Y.)
| | - Gabriela Kratošová
- Nanotechnology Centre, CEET, VŠB–Technical University of Ostrava, 17. listopadu 2172/15, 708 00 Ostrava Poruba, Czech Republic;
| | - Patrycja Golińska
- Faculty of Biological and Veterinary Sciences, Nicolaus Copernicus University in Toruń, Lwowska 1, 87-100 Toruń, Poland; (J.T.-W.); (M.W.)
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Mekuria SL, Li J, Song C, Gao Y, Ouyang Z, Shen M, Shi X. Facile Formation of PAMAM Dendrimer Nanoclusters for Enhanced Gene Delivery and Cancer Gene Therapy. ACS APPLIED BIO MATERIALS 2021; 4:7168-7175. [PMID: 35006948 DOI: 10.1021/acsabm.1c00743] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Preparation of versatile and safe nanovectors for efficient cancer gene therapy remains to be challenging in the current nanomedicine. Herein, we report the formation of dendrimer nanoclusters for enhanced gene delivery toward gene therapy of cancer. Here, poly(amidoamine) (PAMAM) dendrimers of generation 3 (G3) were cross-linked with 4,4'-dithiodibutryic acid (DA) to form nanoclusters (NCs) through 1-(3-dimethylaminopropyl)-3-ethylcarbodiimide hydrochloride-induced covalent bonding. The synthesized G3-DA NCs having a hydrodynamic size of 219.3 nm possess good colloidal stability and can condense pDNA, encoding both enhanced green fluorescent protein and tumor suppressor p53 gene to form polyplexes with good cytocompatibility. Strikingly, the created NCs/pDNA polyplexes enable 2.3 and 2.1 times higher gene transfection to cancer cells than the counterpart materials of single G3 and G5 PAMAM dendrimers, respectively, under the same conditions. Furthermore, polyplex-treated cancer cells have upregulated p53 and p21 protein and mRNA expression levels and downregulated Cyclin-D1 and CDK-4 protein and mRNA expressions, thus arresting the cell cycle to the G1 phase in vitro to achieve cancer cell gene therapy. The gene delivery efficiency of the polyplexes was further validated through the in vivo tumor therapy without systemic toxicity. The synthesized highly efficient dendrimer NC-based vector system with low cytotoxicity may be extended to tackle various types of diseases related to genetic disorders.
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Affiliation(s)
- Shewaye Lakew Mekuria
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Shanghai Engineering Research Center of Nano-Biomaterials and Regenerative Medicine, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, People's Republic of China.,Department of Chemistry, College of Natural and Computational Sciences, University of Gondar, Gondar 196, Ethiopia
| | - Jin Li
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Shanghai Engineering Research Center of Nano-Biomaterials and Regenerative Medicine, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, People's Republic of China
| | - Cong Song
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Shanghai Engineering Research Center of Nano-Biomaterials and Regenerative Medicine, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, People's Republic of China
| | - Yue Gao
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Shanghai Engineering Research Center of Nano-Biomaterials and Regenerative Medicine, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, People's Republic of China
| | - Zhijun Ouyang
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Shanghai Engineering Research Center of Nano-Biomaterials and Regenerative Medicine, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, People's Republic of China
| | - Mingwu Shen
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Shanghai Engineering Research Center of Nano-Biomaterials and Regenerative Medicine, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, People's Republic of China
| | - Xiangyang Shi
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Shanghai Engineering Research Center of Nano-Biomaterials and Regenerative Medicine, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, People's Republic of China
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Lipodendriplexes mediated enhanced gene delivery: a cellular to pre-clinical investigation. Sci Rep 2020; 10:21446. [PMID: 33293580 PMCID: PMC7723038 DOI: 10.1038/s41598-020-78123-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2020] [Accepted: 10/27/2020] [Indexed: 01/10/2023] Open
Abstract
Clinical success of effective gene therapy is mainly hampered by the insufficiency of safe and efficient internalization of a transgene to the targeted cellular site. Therefore, the development of a safe and efficient nanocarrier system is one of the fundamental challenges to transfer the therapeutic genes to the diseased cells. Polyamidoamine (PAMAM) dendrimer has been used as an efficient non-viral gene vector (dendriplexes) but the toxicity and unusual biodistribution induced by the terminal amino groups (–NH2) limit its in vivo applications. Hence, a state of the art lipid modification with PAMAM based gene carrier (lipodendriplexes) was planned to investigate theirs in vitro (2D and 3D cell culture) and in vivo behaviour. In vitro pDNA transfection, lactate dehydrogenase (LDH) release, reactive oxygen species (ROS) generation, cellular protein contents, live/dead staining and apoptosis were studied in 2D cell culture of HEK-293 cells while GFP transfection, 3D cell viability and live/dead staining of spheroids were performed in its 3D cell culture. Acute toxicity studies including organ to body index ratio, hematological parameters, serum biochemistry, histopathological profiles and in vivo transgene expression were assessed in female BALB/c mice. The results suggested that, in comparison to dendriplexes the lipodendriplexes exhibited significant improvement of pDNA transfection (p < 0.001) with lower LDH release (p < 0.01) and ROS generation (p < 0.05). A substantially higher cellular protein content (p < 0.01) and cell viability were also observed in 2D culture. A strong GFP expression with an improved cell viability profile (p < 0.05) was indicated in lipodendriplexes treated 3D spheroids. In vivo archives showed the superiority of lipid-modified nanocarrier system, depicted a significant increase in green fluorescent protein (GFP) expression in the lungs (p < 0.01), heart (p < 0.001), liver (p < 0.001) and kidneys (p < 0.001) with improved serum biochemistry and hematological profile as compared to unmodified dendriplexes. No tissue necrosis was evident in the animal groups treated with lipid-shielded molecules. Therefore, a non-covalent conjugation of lipids with PAMAM based carrier system could be considered as a promising approach for an efficient and biocompatible gene delivery system.
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Mikhailova EO. Silver Nanoparticles: Mechanism of Action and Probable Bio-Application. J Funct Biomater 2020; 11:E84. [PMID: 33255874 PMCID: PMC7711612 DOI: 10.3390/jfb11040084] [Citation(s) in RCA: 125] [Impact Index Per Article: 31.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2020] [Revised: 11/08/2020] [Accepted: 11/23/2020] [Indexed: 12/14/2022] Open
Abstract
This review is devoted to the medical application of silver nanoparticles produced as a result of "green" synthesis using various living organisms (bacteria, fungi, plants). The proposed mechanisms of AgNPs synthesis and the action mechanisms on target cells are highlighted.
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Affiliation(s)
- Ekaterina O Mikhailova
- Institute of innovation management, Kazan National Research Technological University, K. Marx Street 68, 420015 Kazan, Russia
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8
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Brain gene delivery using histidine and arginine-modified dendrimers for ischemic stroke therapy. J Control Release 2020; 330:907-919. [PMID: 33152393 DOI: 10.1016/j.jconrel.2020.10.064] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2020] [Revised: 10/28/2020] [Accepted: 10/30/2020] [Indexed: 12/13/2022]
Abstract
Polyamidoamine dendrimer has been studied as an efficient gene carrier. Due to its anti-inflammatory properties, polyamidoamine is a useful gene carrier, especially for inflammatory diseases. However, the commonly used polyamidoamine generation 6 dendrimer (PG6) has higher cytotoxicity than low-molecular weight polyamidoamines, which limits its applications. Therefore, early-generation polyamidoamine dendrimers, such as generation 2 (PG2), have been investigated as an alternative to PG6, although PG2 has a lower transfection efficiency. In this study, to improve gene delivery efficiency, histidine and arginine were conjugated on the primary amines of PG2, synthesizing PG2HR. The gene delivery efficiency of PG2HR was higher than that of PG2 or of PG2 conjugated with only arginine (PG2R), which may be due to higher cellular uptake and endosomal escape of the plasmid DNA (pDNA)/PG2HR complex. In addition, PG2HR had lower cytotoxicity than polyethylenimine (25 kDa, PEI25k), PG2, and PG2R. Mechanism studies showed that PG2HR delivered pDNA into the cells mainly by clathrin-independent endocytosis and partly by macropinocytosis. The therapeutic potential of PG2HR-mediated gene delivery was evaluated in middle cerebral artery occlusion (MCAO)-reperfusion stroke animal models. Heme oxygenase-1 (HO-1) plasmid was delivered into the brain by local injection. The results showed that PG2HR had higher gene delivery efficiency in the brain than did PEI25k, PG2, or PG2R. Furthermore, compared to the pHO-1/PEI25k, pHO-1/PG2, and pHO-1/PG2R complexes, the pHO-1/PG2HR complex had reduced apoptosis levels and infarct sizes in ischemic brains. Therefore, because of its low cytotoxicity and high gene delivery efficiency, PG2HR may be useful for gene therapy of inflammatory diseases including ischemic stroke.
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Zhou Y, Han S, Liang Z, Zhao M, Liu G, Wu J. Progress in arginine-based gene delivery systems. J Mater Chem B 2020; 8:5564-5577. [DOI: 10.1039/d0tb00498g] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Arginine based gene delivery systems with enhanced membrane penetration and lower cytotoxicity greatly enrich the gene vectors library and outline a new development direction of gene delivery.
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Affiliation(s)
- Yang Zhou
- Key Laboratory of Sensing Technology and Biomedical Instrument of Guangdong Province
- School of Biomedical Engineering
- Sun Yat-sen University
- Guangzhou
- China
| | - Shuyan Han
- Key Laboratory of Sensing Technology and Biomedical Instrument of Guangdong Province
- School of Biomedical Engineering
- Sun Yat-sen University
- Guangzhou
- China
| | - Zhiqing Liang
- Key Laboratory of Sensing Technology and Biomedical Instrument of Guangdong Province
- School of Biomedical Engineering
- Sun Yat-sen University
- Guangzhou
- China
| | - Meng Zhao
- Shenzhen Lansi Institute of Artificial Intelligence in Medicine
- Shenzhen
- China
| | - Guiting Liu
- Key Laboratory of Sensing Technology and Biomedical Instrument of Guangdong Province
- School of Biomedical Engineering
- Sun Yat-sen University
- Guangzhou
- China
| | - Jun Wu
- Key Laboratory of Sensing Technology and Biomedical Instrument of Guangdong Province
- School of Biomedical Engineering
- Sun Yat-sen University
- Guangzhou
- China
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Mishra V, Yadav N, Saraogi GK, Tambuwala MM, Giri N. Dendrimer Based Nanoarchitectures in Diabetes Management: An Overview. Curr Pharm Des 2019; 25:2569-2583. [PMID: 31333099 DOI: 10.2174/1381612825666190716125332] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2019] [Accepted: 07/04/2019] [Indexed: 01/13/2023]
Abstract
Diabetes has turned out to be one of the biggest worldwide health and economic burdens, with its expanded predominance and high complexity proportion. The quantity of diabetic patients is expanding enormously around the world. Several reports have demonstrated the sharp increment in the sufferers. Stable and acceptable blood glucose control is fundamental to diminish diabetes-related complications. Consequently, ceaseless endeavors have been made in antidiabetic drugs, treatment strategies, and nanotechnology based products to accomplish better diabetes control. The nanocarriers pertaining hypoglycaemics provide improved diabetes management with minimum risk of associated side effects. Dendrimers have caught an incredible attention in the field of drug delivery and personalized medicines. Dendrimers are three-dimensional well-defined homogenous nanosized structures consisting tree-like branches. The present review highlights the different aspects of dendrimers including fabrication, surface engineering, toxicological profile as well as delivery of antidiabetic drugs for the effective cure of diabetes.
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Affiliation(s)
- Vijay Mishra
- School of Pharmaceutical Sciences, Lovely Professional University, Phagwara, Punjab, India
| | - Nishika Yadav
- School of Pharmaceutical Sciences, Lovely Professional University, Phagwara, Punjab, India
| | - Gaurav K Saraogi
- School of Pharmacy and Technology Management, SVKM's NMIMS, Shirpur, India
| | - Murtaza M Tambuwala
- SAAD Centre for Pharmacy and Diabetes, School of Pharmacy and Pharmaceutical Sciences, Ulster University, Coleraine, BT52 1SA, Northern Ireland, United Kingdom
| | - Namita Giri
- School of Pharmacy, Ferris State University, Big Rapids, Michigan MI4930, MA, United States
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Tariq I, Pinnapireddy SR, Duse L, Ali MY, Ali S, Amin MU, Goergen N, Jedelská J, Schäfer J, Bakowsky U. Lipodendriplexes: A promising nanocarrier for enhanced gene delivery with minimal cytotoxicity. Eur J Pharm Biopharm 2019; 135:72-82. [DOI: 10.1016/j.ejpb.2018.12.013] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2018] [Revised: 12/21/2018] [Accepted: 12/23/2018] [Indexed: 12/11/2022]
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Javaid A, Oloketuyi SF, Khan MM, Khan F. Diversity of Bacterial Synthesis of Silver Nanoparticles. BIONANOSCIENCE 2017. [DOI: 10.1007/s12668-017-0496-x] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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13
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Bakan F, Kara G, Cokol Cakmak M, Cokol M, Denkbas EB. Synthesis and characterization of amino acid-functionalized calcium phosphate nanoparticles for siRNA delivery. Colloids Surf B Biointerfaces 2017; 158:175-181. [PMID: 28689100 DOI: 10.1016/j.colsurfb.2017.06.028] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2017] [Revised: 06/18/2017] [Accepted: 06/20/2017] [Indexed: 01/05/2023]
Abstract
Small interfering RNAs (siRNA) are short nucleic acid fragments of about 20-27 nucleotides, which can inhibit the expression of specific genes. siRNA based RNAi technology has emerged as a promising method for the treatment of a variety of diseases. However, a major limitation in the therapeutic use of siRNA is its rapid degradation in plasma and cellular cytoplasm, resulting in short half-life. In addition, as siRNA molecules cannot penetrate into the cell efficiently, it is required to use a carrier system for its delivery. In this work, chemically and morphologically different calcium phosphate (CaP) nanoparticles, including spherical-like hydroxyapatite (HA-s), needle-like hydroxyapatite (HA-n) and calcium deficient hydroxyapatite (CDHA) nanoparticles were synthesized by the sol-gel technique and the effects of particle characteristics on the binding capacity of siRNA were investigated. In order to enhance the gene loading efficiency, the nanoparticles were functionalized with arginine and the morphological and their structural characteristics were analyzed. The addition of arginine did not significantly change the particle sizes; however, it provided a significantly increased binding of siRNA for all types of CaP nanoparticles, as revealed by spectrophotometric measurements analysis. Arginine functionalized HA-n nanoparticles showed the best binding behavior with siRNA among the other nanoparticles due to its high, positive zeta potential (+18.8mV) and high surface area of Ca++ rich "c" plane. MTT cytotoxicity assays demonstrated that all the nanoparticles tested herein were biocompatible. Our results suggest that high siRNA entrapment in each of the three modified non-toxic CaP nanoparticles make them promising candidates as a non-viral vector for delivering therapeutic siRNA molecules to treat cancer.
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Affiliation(s)
- Feray Bakan
- Sabanci University Nanotechnology Research and Application Center (SUNUM), 34956, Istanbul, Turkey.
| | - Goknur Kara
- Hacettepe University, Department of Chemistry, Biochemistry Division, 06800, Ankara, Turkey
| | - Melike Cokol Cakmak
- Sabanci University, Molecular Biology, Genetics and Bioengineering Program, 34956, Istanbul, Turkey
| | - Murat Cokol
- Tufts University School of Medicine, Department of Molecular Biology and Microbiology, Harvard Medical School, Laboratory of Systems Pharmacology, Boston, MA, USA
| | - Emir Baki Denkbas
- Hacettepe University, Department of Chemistry, Biochemistry Division, 06800, Ankara, Turkey
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Perspectives on dendritic architectures and their biological applications: From core to cell. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2017; 173:61-83. [PMID: 28564631 DOI: 10.1016/j.jphotobiol.2017.05.023] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/20/2017] [Revised: 05/15/2017] [Accepted: 05/18/2017] [Indexed: 12/24/2022]
Abstract
The challenges of medicine today include the increasing stipulation for sensitive and effective systems that can improve the pathological responses with a simultaneous reduction in accumulation and drug side effects. The demand can be fulfilled through the advancements in nanomedicine that includes nanostructures and nanodevices for diagnosing, treating, and prevention of various diseases. In this respect, the nanoscience provides various novel techniques with carriers such as micelles, dendrimers, particles and vesicles for the transportation of active moieties. Further, an efficient way to improve these systems is through stimuli a responsive system that utilizes supramolecular hyperbranched structures to meet the above criteria. The stimuli-responsive dendritic architectures exhibit spatial, temporal, convenient, effective, safety and controlled drug release in response to specific trigger through electrostatic interactions plus π stacking. The stimuli-responsive systems are capable of sequestering the drug molecules underneath a predefined set of conditions and discharge them in a different environment through either exogenous or endogenous stimulus. The incorporation of photoresponsive moieties at various components of dendrimer such as core, branches or at the peripheral end exaggerates its significance in various allied fields of nanotechnology which includes sensors, photoswitch, electronic widgets and in drug delivery systems. This is due to the light instigated geometrical modifications at the core or at the surface molecules which generates huge conformational changes throughout the hyperbranched structure. Further, numerous synthetic methodologies have been investigated for utilization of dendrimers in therapeutic drug delivery and its applicability towards stimuli responsive systems such as photo-instigated, thermal-instigated, and pH-instigated hyperbranched structures and their advancement in the field of nanomedicine. This paper highlights the fascinating theoretical advances and principal mechanisms of dendrimer synthesis and their ability to capture light that strengthens its applicability from radiant energy to medical photonics.
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15
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Fokina AA, Chelobanov BP, Fujii M, Stetsenko DA. Delivery of therapeutic RNA-cleaving oligodeoxyribonucleotides (deoxyribozymes): from cell culture studies to clinical trials. Expert Opin Drug Deliv 2016; 14:1077-1089. [PMID: 27892730 DOI: 10.1080/17425247.2017.1266326] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
INTRODUCTION Development of efficient in vivo delivery systems remains a major challenge en route to clinical application of antisense technology, including RNA-cleaving molecules such as deoxyribozymes (DNAzymes). The mechanisms of oligonucleotide uptake and trafficking are clearly dependent on cell type and the type of oligonucleotide analogue. It appears likely that each particular disease target would pose its own specific requirements for a delivery method. Areas covered. In this review we will discuss the available options for DNAzyme delivery in vitro and in vivo, outline various exogenous and endogenous strategies that have been, or are still being, developed and ascertain their applicability with emphasis on those methods that are currently being used in clinical trials. Expert opinion. The available information suggests that a practical system for in vivo delivery has to be biodegradable, as to minimize concerns over long-term toxicity, it should not accumulate in the organism. Extracellular vesicles may offer the most organic way for drug delivery especially as they can be fused with artificial liposomes to produce hybrid nanoparticles. Chemical modification of DNAzymes holds great potential to apply oligonucleotide analogs that would not only be resistant to nuclease digestion, but also able to penetrate cells without external delivery agents.
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Affiliation(s)
- Alesya A Fokina
- a Institute of Chemical Biology and Fundamental Medicine , Siberian Branch of the Russian Academy of Sciences , Novosibirsk , Russia
| | - Boris P Chelobanov
- a Institute of Chemical Biology and Fundamental Medicine , Siberian Branch of the Russian Academy of Sciences , Novosibirsk , Russia
| | - Masayuki Fujii
- b Department of Biological & Environmental Chemistry , Kindai University , Iizuka, Fukuoka , Japan
| | - Dmitry A Stetsenko
- a Institute of Chemical Biology and Fundamental Medicine , Siberian Branch of the Russian Academy of Sciences , Novosibirsk , Russia
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16
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Sganappa A, Wexselblatt E, Bellucci MC, Esko JD, Tedeschi G, Tor Y, Volonterio A. Dendrimeric Guanidinoneomycin for Cellular Delivery of Bio-macromolecules. Chembiochem 2016; 18:119-125. [DOI: 10.1002/cbic.201600422] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2016] [Indexed: 12/23/2022]
Affiliation(s)
- Aurora Sganappa
- Department of Chemistry; Material and Chemical Engineering “Giulio Natta”; Politecnico di Milano; via Mancinelli 7 20131 Milano Italy
| | - Ezequiel Wexselblatt
- Department of Chemistry and Biochemistry; University of California; 9500 Gilman Drive La Jolla CA 92093 USA
| | - Maria Cristina Bellucci
- Department of Food; Environmental and Nutritional Sciences; Università degli Studi di Milano; Via Celoria 2 20133 Milano Italy
| | - Jeffrey D. Esko
- Department of Cellular and Molecular Medicine; University of California; 9500 Gilman Drive La Jolla CA 92093 USA
| | - Gabriella Tedeschi
- Department of Veterinary Science and Public Health; Università degli Studi di Milano; Via Celoria 2 20133 Milano Italy
| | - Yitzhak Tor
- Department of Chemistry and Biochemistry; University of California; 9500 Gilman Drive La Jolla CA 92093 USA
| | - Alessandro Volonterio
- Department of Chemistry; Material and Chemical Engineering “Giulio Natta”; Politecnico di Milano; via Mancinelli 7 20131 Milano Italy
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17
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Synthesis and characterization of a PAMAM-OH derivative containing an acid-labile β-thiopropionate bond for gene delivery. Int J Pharm 2016; 509:314-327. [PMID: 27260132 DOI: 10.1016/j.ijpharm.2016.05.060] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2016] [Revised: 05/24/2016] [Accepted: 05/27/2016] [Indexed: 12/23/2022]
Abstract
The present report describes the synthesis of a hydroxyl terminal PAMAM dendrimer (PAMAM-OH) derivative (PAMSPF). The hydroxyls of PAMAM-OH were attached to S-Methyl-l-cysteine (SMLC) via an acid-labile ester bond, named as β-thiopropionate bond, followed by modification with folic acid (FA) through a polyethylene glycol (PEG) linker. The degrees of attachment of SMLC and FA to the PAMAM-OH backbone were 83.9% and 12.8%, respectively. PAMSPF could condense DNA to form spherical nanoparticles with particle sizes of ∼200nm and remain stable in the presence of heparin and nuclease. The β-thiopropionate bond in PAMSPF was hydrolyzed completely and the DNA release rate was 95.8±3.3% after incubation under mildly acidic conditions at 37°C for 3h. PAMSPF/DNA was less cytotoxic to KB and HepG2 cells and exhibited a higher gene transfection efficiency than native PAMAM/DNA. The uptake assays showed that PAMSPF/DNA entered KB cells within 0.5h through folate receptor-mediated endocytosis and escaped from endosomes within 2h. In addition, PAMSPF/DNA displayed long circulation time along with excellent targeting of tumor sites in vivo. These findings demonstrate that PAMSPF is an excellent carrier for safe and effective gene delivery.
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18
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Liu ZJ, Daftarian P, Kovalski L, Wang B, Tian R, Castilla DM, Dikici E, Perez VL, Deo S, Daunert S, Velazquez OC. Directing and Potentiating Stem Cell-Mediated Angiogenesis and Tissue Repair by Cell Surface E-Selectin Coating. PLoS One 2016; 11:e0154053. [PMID: 27104647 PMCID: PMC4841581 DOI: 10.1371/journal.pone.0154053] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2015] [Accepted: 04/07/2016] [Indexed: 01/12/2023] Open
Abstract
Stem cell therapy has emerged as a promising approach for treatment of a number of diseases, including delayed and non-healing wounds. However, targeted systemic delivery of therapeutic cells to the dysfunctional tissues remains one formidable challenge. Herein, we present a targeted nanocarrier-mediated cell delivery method by coating the surface of the cell to be delivered with dendrimer nanocarriers modified with adhesion molecules. Infused nanocarrier-coated cells reach to destination via recognition and association with the counterpart adhesion molecules highly or selectively expressed on the activated endothelium in diseased tissues. Once anchored on the activated endothelium, nanocarriers-coated transporting cells undergo transendothelial migration, extravasation and homing to the targeted tissues to execute their therapeutic role. We now demonstrate feasibility, efficacy and safety of our targeted nanocarrier for delivery of bone marrow cells (BMC) to cutaneous wound tissues and grafted corneas and its advantages over conventional BMC transplantation in mouse models for wound healing and neovascularization. This versatile platform is suited for targeted systemic delivery of virtually any type of therapeutic cell.
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Affiliation(s)
- Zhao-Jun Liu
- Department of Surgery, School of Medicine, University of Miami, Coral Gables, Florida, 33136, United States of America
| | - Pirouz Daftarian
- Department of Biochemistry and Molecular Biology, School of Medicine, University of Miami, Coral Gables, Florida, 33136, United States of America
- Dr. JT Macdonald Biomedical Nanotechnology Institute, University of Miami, Coral Gables, Florida, 33136, United States of America
| | - Letícia Kovalski
- Department of Biochemistry and Molecular Biology, School of Medicine, University of Miami, Coral Gables, Florida, 33136, United States of America
| | - Bo Wang
- Department of Surgery, School of Medicine, University of Miami, Coral Gables, Florida, 33136, United States of America
| | - Runxia Tian
- Department of Surgery, School of Medicine, University of Miami, Coral Gables, Florida, 33136, United States of America
| | - Diego M. Castilla
- Department of Surgery, School of Medicine, University of Miami, Coral Gables, Florida, 33136, United States of America
| | - Emre Dikici
- Department of Biochemistry and Molecular Biology, School of Medicine, University of Miami, Coral Gables, Florida, 33136, United States of America
| | - Victor L. Perez
- Department of Ophthalmology, Bascom Palmer Eye Institute, University of Miami, Coral Gables, Florida, 33136, United States of America
| | - Sapna Deo
- Department of Biochemistry and Molecular Biology, School of Medicine, University of Miami, Coral Gables, Florida, 33136, United States of America
- Dr. JT Macdonald Biomedical Nanotechnology Institute, University of Miami, Coral Gables, Florida, 33136, United States of America
| | - Sylvia Daunert
- Department of Biochemistry and Molecular Biology, School of Medicine, University of Miami, Coral Gables, Florida, 33136, United States of America
- Dr. JT Macdonald Biomedical Nanotechnology Institute, University of Miami, Coral Gables, Florida, 33136, United States of America
- * E-mail: (OV); (SD)
| | - Omaida C. Velazquez
- Department of Surgery, School of Medicine, University of Miami, Coral Gables, Florida, 33136, United States of America
- Department of Biochemistry and Molecular Biology, School of Medicine, University of Miami, Coral Gables, Florida, 33136, United States of America
- * E-mail: (OV); (SD)
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19
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Biomimetics: From Bioinformatics to Rational Design of Dendrimers as Gene Carriers. PLoS One 2015; 10:e0138392. [PMID: 26382062 PMCID: PMC4575034 DOI: 10.1371/journal.pone.0138392] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2015] [Accepted: 08/28/2015] [Indexed: 12/11/2022] Open
Abstract
Biomimetics, or the use of principles of Nature for developing new materials, is a paradigm that could help Nanomedicine tremendously. One of the current challenges in Nanomedicine is the rational design of new efficient and safer gene carriers. Poly(amidoamine) (PAMAM) dendrimers are a well-known class of nanoparticles, extensively used as non-viral nucleic acid carriers, due to their positively charged end-groups. Yet, there are still several aspects that can be improved for their successful application in in vitro and in vivo systems, including their affinity for nucleic acids as well as lowering their cytotoxicity. In the search of new functional groups that could be used as new dendrimer-reactive groups, we followed a biomimetic approach to determine the amino acids with highest prevalence in protein-DNA interactions. Then we introduced them individually as terminal groups of dendrimers, generating a new class of nanoparticles. Molecular dynamics studies of two systems: PAMAM-Arg and PAMAM-Lys were also performed in order to describe the formation of complexes with DNA. Results confirmed that the introduction of amino acids as terminal groups in a dendrimer increases their affinity for DNA and the interactions in the complexes were characterized at atomic level. We end up by briefly discussing additional modifications that can be made to PAMAM dendrimers to turned them into promising new gene carriers.
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20
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Yang J, Zhang Q, Chang H, Cheng Y. Surface-Engineered Dendrimers in Gene Delivery. Chem Rev 2015; 115:5274-300. [DOI: 10.1021/cr500542t] [Citation(s) in RCA: 307] [Impact Index Per Article: 34.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Jiepin Yang
- Shanghai
Key Laboratory of
Regulatory Biology, School of Life Sciences, East China Normal University, Shanghai 200241, P. R. China
| | - Qiang Zhang
- Shanghai
Key Laboratory of
Regulatory Biology, School of Life Sciences, East China Normal University, Shanghai 200241, P. R. China
| | - Hong Chang
- Shanghai
Key Laboratory of
Regulatory Biology, School of Life Sciences, East China Normal University, Shanghai 200241, P. R. China
| | - Yiyun Cheng
- Shanghai
Key Laboratory of
Regulatory Biology, School of Life Sciences, East China Normal University, Shanghai 200241, P. R. China
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21
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Jung SJ, Kasala D, Choi JW, Lee SH, Hwang JK, Kim SW, Yun CO. Safety profiles and antitumor efficacy of oncolytic adenovirus coated with bioreducible polymer in the treatment of a CAR negative tumor model. Biomacromolecules 2015; 16:87-96. [PMID: 25400213 PMCID: PMC4294585 DOI: 10.1021/bm501116x] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2014] [Revised: 11/14/2014] [Indexed: 12/26/2022]
Abstract
Adenovirus (Ad) vectors show promise as cancer gene therapy delivery vehicles, but immunogenic safety concerns and coxsackie and adenovirus receptor (CAR)-dependency have limited their use. Alternately, biocompatible and bioreducible nonviral vectors, including arginine-grafted cationic polymers, have been shown to deliver nucleic acids through a cell penetration peptide (CPP) and protein transduction domain (PTD) effect. We utilized the advantages of both viral and nonviral vectors to develop a hybrid gene delivery vehicle by coating Ad with mPEG-PEI-g-Arg-S-S-Arg-g-PEI-mPEG (Ad/PPSA). Characterization of Ad/PPSA particle size and zeta potential showed an overall size and cationic charge increase in a polymer concentration-dependent manner. Ad/PPSA also showed a marked transduction efficiency increase in both CAR-negative and -positive cells compared to naked Ad. Competition assays demonstrated that Ad/PPSA produced higher transgene expression levels than naked Ad and achieved CAR-independent transduction. Oncolytic Ad (DWP418)/PPSA was able to overcome the nonspecificity of polymer-only therapies by demonstrating cancer-specific killing effects. Furthermore, the DWP418/PPSA nanocomplex elicited a 2.24-fold greater antitumor efficacy than naked Ad in vivo. This was supported by immunohistochemical confirmation of Ad E1As accumulation in MCF7 xenografted tumors. Lastly, intravenous injection of DWP418/PPSA elicited less innate immune response compared to naked Ad, evaluated by interleukin-6 cytokine release into the serum. The increased antitumor effect and improved vector targeting to both CAR-negative and -positive cells make DWP418/PPSA a promising tool for cancer gene therapy.
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Affiliation(s)
- Soo-Jung Jung
- Department
of Bioengineering, College of Engineering, Hanyang University, 222 Wangsimni-ro, Seongdong-gu, Seoul 133-791, Korea
| | - Dayananda Kasala
- Department
of Bioengineering, College of Engineering, Hanyang University, 222 Wangsimni-ro, Seongdong-gu, Seoul 133-791, Korea
| | - Joung-Woo Choi
- Department
of Bioengineering, College of Engineering, Hanyang University, 222 Wangsimni-ro, Seongdong-gu, Seoul 133-791, Korea
| | - Soo-Hwan Lee
- Department
of Bioengineering, College of Engineering, Hanyang University, 222 Wangsimni-ro, Seongdong-gu, Seoul 133-791, Korea
| | - June Kyu Hwang
- Department
of Bioengineering, College of Engineering, Hanyang University, 222 Wangsimni-ro, Seongdong-gu, Seoul 133-791, Korea
| | - Sung Wan Kim
- Department
of Bioengineering, College of Engineering, Hanyang University, 222 Wangsimni-ro, Seongdong-gu, Seoul 133-791, Korea
- Department
of Pharmaceutics and Pharmaceutical Chemistry, University of Utah, Salt Lake
City, Utah 84112, United States
| | - Chae-Ok Yun
- Department
of Bioengineering, College of Engineering, Hanyang University, 222 Wangsimni-ro, Seongdong-gu, Seoul 133-791, Korea
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22
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Kesharwani P, Iyer AK. Recent advances in dendrimer-based nanovectors for tumor-targeted drug and gene delivery. Drug Discov Today 2014; 20:536-47. [PMID: 25555748 DOI: 10.1016/j.drudis.2014.12.012] [Citation(s) in RCA: 216] [Impact Index Per Article: 21.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2014] [Revised: 11/24/2014] [Accepted: 12/22/2014] [Indexed: 01/09/2023]
Abstract
Advances in the application of nanotechnology in medicine have given rise to multifunctional smart nanocarriers that can be engineered with tunable physicochemical characteristics to deliver one or more therapeutic agent(s) safely and selectively to cancer cells, including intracellular organelle-specific targeting. Dendrimers having properties resembling biomolecules, with well-defined 3D nanopolymeric architectures, are emerging as a highly attractive class of drug and gene delivery vector. The presence of numerous peripheral functional groups on hyperbranched dendrimers affords efficient conjugation of targeting ligands and biomarkers that can recognize and bind to receptors overexpressed on cancer cells for tumor-cell-specific delivery. The present review compiles the recent advances in dendrimer-mediated drug and gene delivery to tumors by passive and active targeting principles with illustrative examples.
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Affiliation(s)
- Prashant Kesharwani
- Use-inspired Biomaterials and Integrated Nano Delivery (U-BiND) Systems Laboratory, Department of Pharmaceutical Sciences, Eugene Applebaum College of Pharmacy and Health Sciences, Wayne State University, Detroit, MI 48201, USA
| | - Arun K Iyer
- Use-inspired Biomaterials and Integrated Nano Delivery (U-BiND) Systems Laboratory, Department of Pharmaceutical Sciences, Eugene Applebaum College of Pharmacy and Health Sciences, Wayne State University, Detroit, MI 48201, USA.
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23
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Abdelwahab AF, Ohyama A, Higashi T, Motoyama K, Khaled KA, Sarhan HA, Hussein AK, Arima H. Preparation and evaluation of polyamidoamine dendrimer conjugate with glucuronylglucosyl-β-cyclodextrin (G3) as a novel carrier for siRNA. J Drug Target 2014; 22:927-34. [DOI: 10.3109/1061186x.2014.950663] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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24
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Luo K, He B, Wu Y, Shen Y, Gu Z. Functional and biodegradable dendritic macromolecules with controlled architectures as nontoxic and efficient nanoscale gene vectors. Biotechnol Adv 2014; 32:818-30. [PMID: 24389086 DOI: 10.1016/j.biotechadv.2013.12.008] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2013] [Revised: 12/13/2013] [Accepted: 12/15/2013] [Indexed: 12/28/2022]
Abstract
Gene therapy has provided great potential to revolutionize the treatment of many diseases. This therapy is strongly relied on whether a delivery vector efficiently and safely directs the therapeutic genes into the target tissue/cells. Nonviral gene delivery vectors have been emerging as a realistic alternative to the use of viral analogs with the potential of a clinically relevant output. Dendritic polymers were employed as nonviral vectors due to their branched and layered architectures, globular shape and multivalent groups on their surface, showing promise in gene delivery. In the present review, we try to bring out the recent trend of studies on functional and biodegradable dendritic polymers as nontoxic and efficient gene delivery vectors. By regulating dendritic polymer design and preparation, together with recent progress in the design of biodegradable polymers, it is possible to precisely manipulate their architectures, molecular weight and chemical composition, resulting in predictable tuning of their biocompatibility as well as gene transfection activities. The multifunctional and biodegradable dendritic polymers possessing the desirable characteristics are expected to overcome extra- and intracellular obstacles, and as efficient and nontoxic gene delivery vectors to move into the clinical arena.
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Affiliation(s)
- Kui Luo
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610064, China
| | - Bin He
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610064, China
| | - Yao Wu
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610064, China
| | - Youqing Shen
- Key Laboratory of Biomass Chemical Engineering of Ministry of Education, Zhejiang University, Hangzhou 310027, China; Center for Bionanoengineering, Zhejiang University, Hangzhou 310027, China.
| | - Zhongwei Gu
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610064, China.
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25
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Direct TLC/MALDI–MS coupling for modified polyamidoamine dendrimers analyses. Anal Chim Acta 2014; 808:144-50. [DOI: 10.1016/j.aca.2013.09.037] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2013] [Revised: 09/13/2013] [Accepted: 09/18/2013] [Indexed: 02/04/2023]
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26
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Leriche ED, Afonso C, Lange CM, Grossel MC, Truong L, Coadou G, Oulyadi H, Loutelier-Bourhis C. Glycine-modified polyamidoamine dendrimers: synthesis and structural characterization using nuclear magnetic resonance, ion-mobility mass spectrometry and capillary electrophoresis. RSC Adv 2014. [DOI: 10.1039/c3ra43939a] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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27
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Jędrych M, Borowska K, Galus R, Jodłowska-Jędrych B. The evaluation of the biomedical effectiveness of poly(amido)amine dendrimers generation 4.0 as a drug and as drug carriers: a systematic review and meta-analysis. Int J Pharm 2013; 462:38-43. [PMID: 24374222 DOI: 10.1016/j.ijpharm.2013.12.033] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2013] [Revised: 12/15/2013] [Accepted: 12/17/2013] [Indexed: 11/17/2022]
Abstract
The purpose of this study was to investigate the evaluation of the biomedical effectiveness of poly(amido)amine dendrimers generation 4.0 (PAMAM G4) as a drug and as drug carriers by a systematic review of literature and meta-analysis. The results obtained from meta-analysis concluded that drug therapy reduces the change of parameters in relation to the control. The impact of the drug administered to change the test parameters are dependent on the type of tissue. PAMAM G4 may be effective in vitro and in vivo as a drug and drug carriers and may have appropriate applications in various fields of medicine. PAMAM G4 dendrimers hold promises for nanomedicine.
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Affiliation(s)
- Marian Jędrych
- Department of Mathematic and Biostatistic, Medical University of Lublin, 4 Jaczewskiego Street, 20-090 Lublin, Poland
| | - Katarzyna Borowska
- Department of Cosmetology, University of Information Technology and Management in Rzeszów, 2 Sucharskiego Street, 35-325 Rzeszów, Poland.
| | - Ryszard Galus
- Department of Histology and Embryology, Center for Biostructure, Medical University of Warsaw, Chałubinskiego 5 Street, 02-004 Warsaw, Poland
| | - Barbara Jodłowska-Jędrych
- Department of Histology and Embryology with Experimental Cytology Unit, Medical University of Lublin, 11 Radziwiłowska Street, 20-080 Lublin, Poland
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28
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Xing R, Liu G, Zhu J, Hou Y, Chen X. Functional magnetic nanoparticles for non-viral gene delivery and MR imaging. Pharm Res 2013; 31:1377-89. [PMID: 24065595 DOI: 10.1007/s11095-013-1205-2] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2013] [Accepted: 09/12/2013] [Indexed: 01/11/2023]
Abstract
Gene therapy is becoming a promising strategy to treat various kinds of genetic and acquired diseases. However, the development of safe, efficient, and targetable gene delivery systems remains a major challenge in gene therapy. The unique material characteristics of magnetic nanoparticles (MNPs), including high surface area, facile surface modification, controllable size, and excellent magnetic properties, make them promising candidates for gene delivery. The engineered MNPs with modifiable functional surfaces and bioactive cores can result in several advantageous diagnostic and therapeutic properties including enhanced magnetic resonance imaging (MRI) signal intensity, long permeation and retention in the circulatory system, specific delivery of therapeutic genes to target sites. In this review, the updated research on the preparation and surface modification of MNPs for gene delivery is summarized.
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Affiliation(s)
- Ruijun Xing
- Department of Materials Science and Engineering College of Engineering, Peking University, Beijing, 100871, China
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29
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Parhiz H, Shier WT, Ramezani M. From rationally designed polymeric and peptidic systems to sophisticated gene delivery nano-vectors. Int J Pharm 2013; 457:237-59. [PMID: 24060371 DOI: 10.1016/j.ijpharm.2013.09.014] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2013] [Revised: 08/21/2013] [Accepted: 09/17/2013] [Indexed: 12/12/2022]
Abstract
Lack of safe, efficient and controllable methods for delivering therapeutic genes appears to be the most important factor preventing human gene therapy. Safety issues encountered with viral vectors have prompted substantial attention to in vivo investigations with non-viral vectors throughout the past decade. However, developing non-viral vectors with effectiveness comparable to viral ones has been a challenge. The strategy of designing multifunctional synthetic carriers targeting several extracellular and intracellular barriers in the gene transfer pathway has emerged as a promising approach to improving the efficacy of gene delivery systems. This review will explain how sophisticated synthetic vectors can be created by combining conventional polycationic vectors such as polyethylenimine and basic amino acid peptides with additional polymers and peptides that are designed to overcome potential barriers to the gene delivery process.
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Affiliation(s)
- Hamideh Parhiz
- Pharmaceutical Research Center, Department of Pharmaceutical Biotechnology, School of Pharmacy, Mashhad University of Medical Sciences, P.O. Box 91775-1365, Mashhad, Iran
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30
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Chaplot SP, Rupenthal ID. Dendrimers for gene delivery – a potential approach for ocular therapy? J Pharm Pharmacol 2013; 66:542-56. [DOI: 10.1111/jphp.12104] [Citation(s) in RCA: 76] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2013] [Accepted: 06/15/2013] [Indexed: 12/12/2022]
Abstract
Abstract
Objectives
A vast number of blinding diseases have genetic aetiologies and may be treated by molecular based therapies such as antisense oligonucleotides or short interfering RNA. However, treatment success of ocular gene therapy is highly dependent on efficient delivery of such molecules.
Key findings
The majority of clinical studies for ocular gene therapy utilize viral vectors. While these have proven highly efficient, they show limited loading capacity and pose significant safety risks owing to their oncogenic and immunogenic effects. Non-viral gene carriers have emerged as a promising alternative with dendrimers providing great potential for gene therapy because of their size, shape and high density of modifiable surface groups. However, while dendrimers have been used extensively for drug and gene delivery to other organs, only a few studies have been reported on the eye.
Summary
This review focuses on the development of dendrimers for gene delivery with special emphasis on ocular gene therapy. Different synthesis approaches and types of dendrimers are discussed. Ocular gene therapy targets are highlighted with an overview of current clinical studies. The use of dendrimers in ocular gene delivery in comparison to liposomes and nanoparticles is also discussed. Finally, future prospects of tailored multifunctional dendrimers for ocular gene therapy are highlighted.
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Affiliation(s)
- Sahil P Chaplot
- Drug Delivery Research Unit, School of Pharmacy, The University of Auckland, Auckland, New Zealand
| | - Ilva D Rupenthal
- Department of Ophthalmology, New Zealand National Eye Centre, Faculty of Medical and Health Sciences, The University of Auckland, Auckland, New Zealand
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Kwon MJ, An S, Choi S, Nam K, Jung HS, Yoon CS, Ko JH, Jun HJ, Kim TK, Jung SJ, Park JH, Lee Y, Park JS. Effective healing of diabetic skin wounds by using nonviral gene therapy based on minicircle vascular endothelial growth factor DNA and a cationic dendrimer. J Gene Med 2013; 14:272-8. [PMID: 22407991 DOI: 10.1002/jgm.2618] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Abstract
BACKGROUND The development of an efficient method to improve the wound healing process is urgently required for diabetic patients suffering a threat of limb amputations. Various growth factors have been proposed for treatment; however, more research still has to be carried out to maintain their curative effect. In the present study, we describe a simple nonviral gene therapy method for improving wound healing. METHODS Minicircle plasmid DNA encoding vascular endothelial growth factor (VEGF) was combined with an arginine-grafted cationic dendrimer, PAM-RG4. The formed complexes were injected subcutaneously into the skin wounds of diabetic mice. RESULTS Actively proliferating cells in wound tissue were efficiently transfected, resulting in a high level of VEGF expression. Within 6 days after injection, skin wounds in the diabetic mice were generally healed and displayed a well-ordered dermal structure, which was confirmed by histological staining. CONCLUSIONS This simple and effective gene therapy method may represent a powerful tool for the treatment of diabetic foot ulcers and other diseases that are refractory to treatment.
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Affiliation(s)
- Min J Kwon
- Department of Internal Medicine, Pusan Paik Hospital, College of Medicine, Inje University, Busan, Republic of Korea
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An S, Nam K, Choi S, Bai CZ, Lee Y, Park JS. Nonviral gene therapy in vivo with PAM-RG4/apoptin as a potential brain tumor therapeutic. Int J Nanomedicine 2013; 8:821-34. [PMID: 23589689 PMCID: PMC3622651 DOI: 10.2147/ijn.s39072] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Background Glioma is still one of the most complicated forms of brain tumor to remove completely due to its location and the lack of an efficient means to specifically eliminate tumor cells. For these reasons, this study has examined the effectiveness of a nonviral gene therapy approach utilizing a tumor-selective killer gene on a brain tumor xenograft model. Methods and results The therapeutic apoptin gene was recombined into the JDK plasmid and delivered into human brain tumor cells (U87MG) by using a polyamidoamine dendrimer with an arginine surface (PAM-RG4). Studies in vitro showed that the PAM-RG4/apoptin plasmid polyplex exhibited a particularly high transfection activity of .40%. Terminal deoxynucleotidyl transferase dUTP nick end labeling (TUNEL) assay, 4′,6-Diamidino-2-phenylindole (DAPI) TUNEL assay, DAPI staining, and caspase-3 activity assay verified that the tumor cells had undergone apoptosis induced by apoptin. For in vivo studies, the polyplex was injected into tumors, which were induced by injecting U87MG cells intradermally into nude mice. Based on hematoxylin and eosin staining, epidermal growth factor receptor immunohistochemistry results and tumor volume measurement results, tumor growth was effectively inhibited and no specific edema, irritation, or other harm to the skin was observed after polyplex injection. The in vivo expression of apoptin and the induction of apoptosis were verified by reverse-transcription polymerase chain reaction analysis, TUNEL assay, and DAPI staining. Conclusion The PAM-RG4/apoptin gene polyplex is a strong candidate for brain tumor therapeutics because of the synergistic effect of the carrier’s high transfection efficiency (35%–40%) in glioma cells and the selective apoptosis-inducing activity of apoptin in tumor cells.
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Affiliation(s)
- Songhie An
- Department of Chemistry, Seoul National University, Seoul, Republic of Korea
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Son SJ, Yu GS, Choe YH, Kim YJ, Lee E, Park JS, Choi JS. PAMAM Dendrimers Conjugated with L-Arginine and γ-Aminobutyric Acid as Novel Polymeric Gene Delivery Carriers. B KOREAN CHEM SOC 2013. [DOI: 10.5012/bkcs.2013.34.2.579] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Paul A, Shao W, Abbasi S, Shum-Tim D, Prakash S. PAMAM Dendrimer-Baculovirus Nanocomplex for Microencapsulated Adipose Stem Cell-Gene Therapy: In Vitro and in Vivo Functional Assessment. Mol Pharm 2012; 9:2479-88. [DOI: 10.1021/mp3000502] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Arghya Paul
- Biomedical Technology and Cell
Therapy Research Laboratory, Department of Biomedical Engineering,
Faculty of Medicine, McGill University,
3775 University Street, Montreal, Quebec, H3A 2B4, Canada
| | - Wei Shao
- Biomedical Technology and Cell
Therapy Research Laboratory, Department of Biomedical Engineering,
Faculty of Medicine, McGill University,
3775 University Street, Montreal, Quebec, H3A 2B4, Canada
| | - Sana Abbasi
- Biomedical Technology and Cell
Therapy Research Laboratory, Department of Biomedical Engineering,
Faculty of Medicine, McGill University,
3775 University Street, Montreal, Quebec, H3A 2B4, Canada
| | - Dominique Shum-Tim
- Divisions of Cardiac Surgery
and Surgical Research, McGill University Health Center, 687 Pine Avenue West, Suite S8.73, Montreal, Quebec, H3A 1A1, Canada
| | - Satya Prakash
- Biomedical Technology and Cell
Therapy Research Laboratory, Department of Biomedical Engineering,
Faculty of Medicine, McGill University,
3775 University Street, Montreal, Quebec, H3A 2B4, Canada
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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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Affiliation(s)
- Quanming Lin
- a College of Materials and Textiles, Zhejiang Sci-Tech University, Hangzhou 310018, P. R. China
| | - Guohua Jiang
- b College of Materials and Textiles, Zhejiang Sci-Tech University, Hangzhou 310018, P. R. China, Key Laboratory of Advanced Textile Materials and Manufacturing Technology (ATMT), Zhejiang Sci-Tech University, Ministry of Education, Hangzhou 310018, P. R. China;,
| | - Kangkang Tong
- c College of Materials and Textiles, Zhejiang Sci-Tech University, Hangzhou 310018, P. R. China
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Intranasal delivery of HMGB1 siRNA confers target gene knockdown and robust neuroprotection in the postischemic brain. Mol Ther 2012; 20:829-39. [PMID: 22252450 DOI: 10.1038/mt.2011.291] [Citation(s) in RCA: 105] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Noninvasive intranasal drug administration has been noted to allow direct delivery of drugs to the brain. In the present study, the therapeutic efficacy of intranasal small interfering RNA (siRNA) delivery was investigated in the postischemic rat brain. Fluorescein isothiocyanate (FITC)-labeled control siRNA was delivered intranasally in normal adult rats using e-PAM-R, a biodegradable PAMAM dendrimer, as gene carrier. Florescence-tagged siRNA was found in the cytoplasm and processes of neurons and of glial cells in many brain regions, including the hypothalamus, amygdala, cerebral cortex, and striatum, in 1 hour after infusion, and the FITC-fluorescence was continuously detected for at least 12 hours. When siRNA for high mobility group box 1 (HMGB1), which functions as an endogenous danger molecule and aggravates inflammation, was delivered intranasally, the target gene was significantly depleted in many brain regions, including the prefrontal cortex and striatum. More importantly, intranasal delivery of HMGB1 siRNA markedly suppressed infarct volume in the postischemic rat brain (maximal reduction to 42.8 ± 5.6% at 48 hours after 60 minutes middle cerebral artery occlusion (MCAO)) and this protective effect was manifested by recoveries from neurological and behavioral deficits. These results indicate that the intranasal delivery of HMGB1 siRNA offers an efficient means of gene knockdown-mediated therapy in the ischemic brain.
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Inhibitory effect of siRNA complexes with polyamidoamine dendrimer/α-cyclodextrin conjugate (generation 3, G3) on endogenous gene expression. Eur J Pharm Sci 2011; 44:375-84. [DOI: 10.1016/j.ejps.2011.08.019] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2011] [Revised: 08/12/2011] [Accepted: 08/22/2011] [Indexed: 11/19/2022]
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Bakalova R, Zhelev Z, Kokuryo D, Spasov L, Aoki I, Saga T. Chemical nature and structure of organic coating of quantum dots is crucial for their application in imaging diagnostics. Int J Nanomedicine 2011; 6:1719-32. [PMID: 21980235 PMCID: PMC3184932 DOI: 10.2147/ijn.s17995] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2011] [Indexed: 01/24/2023] Open
Abstract
BACKGROUND One of the most attractive properties of quantum dots is their potential to extend the opportunities for fluorescent and multimodal imaging in vivo. The aim of the present study was to clarify whether the composition and structure of organic coating of nanoparticles are crucial for their application in vivo. METHODS We compared quantum dots coated with non-crosslinked amino-functionalized polyamidoamine (PAMAM) dendrimers, quantum dots encapsulated in crosslinked carboxyl-functionalized PAMAM dendrimers, and silica-shelled amino-functionalized quantum dots. A multimodal fluorescent and paramagnetic quantum dot probe was also developed and analyzed. The probes were applied intravenously in anesthetized animals for visualization of brain vasculature using two-photon excited fluorescent microscopy and visualization of tumors using fluorescent IVIS(®) imaging (Caliper Life Sciences, Hopkinton, MA) and magnetic resonance imaging. RESULTS Quantum dots coated with non-crosslinked dendrimers were cytotoxic. They induced side effects in vivo, including vasodilatation with a decrease in mean arterial blood pressure and heart rate. The quantum dots penetrated the vessels, which caused the quality of fluorescent imaging to deteriorate. Quantum dots encapsulated in crosslinked dendrimers had low cytotoxicity and were biocompatible. In concentrations <0.3 nmol quantum dots/kg bodyweight, these nanoparticles did not affect blood pressure and heart rate, and did not induce vasodilatation or vasoconstriction. PEGylation (PEG [polyethylene glycol]) was an indispensable step in development of a quantum dot probe for in vivo imaging, based on silica-shelled quantum dots. The non-PEGylated silica-shelled quantum dots possessed low colloidal stability in high-salt physiological fluids, accompanied by rapid aggregation in vivo. The conjugation of silica-shelled quantum dots with PEG1100 increased their stability and half-life in the circulation without significant enhancement of their size. In concentrations <2.5 nmol/kg bodyweight, these quantum dots did not affect the main physiological variables. It was possible to visualize capillaries, which makes this quantum dot probe appropriate for investigation of mediators of vasoconstriction, vasodilatation, and brain circulation in intact animals in vivo. The multimodal silica-shelled quantum dots allowed visualization of tumor tissue in an early stage of its development, using magnetic resonance imaging. CONCLUSION THE PRESENT STUDY SHOWS THAT THE TYPE AND STRUCTURE OF ORGANIC/BIOORGANIC SHELLS OF QUANTUM DOTS DETERMINE THEIR BIOCOMPATIBILITY AND ARE CRUCIAL FOR THEIR APPLICATION IN IMAGING IN VIVO, DUE TO THE EFFECTS OF THE SHELL ON THE FOLLOWING PROPERTIES: colloidal stability, solubility in physiological fluids, influence of the basic physiological parameters, and cytotoxicity.
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Affiliation(s)
- Rumiana Bakalova
- Molecular Imaging Center, National Institute of Radiological Sciences, Chiba, Japan
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Troiber C, Wagner E. Nucleic Acid Carriers Based on Precise Polymer Conjugates. Bioconjug Chem 2011; 22:1737-52. [DOI: 10.1021/bc200251r] [Citation(s) in RCA: 66] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Christina Troiber
- Pharmaceutical Biotechnology, Center for System-based Drug Research and Center for NanoScience (CeNS), Ludwig-Maximilians-Universität, Butenandtstrasse 5-13, 81377 Munich, Germany
| | - Ernst Wagner
- Pharmaceutical Biotechnology, Center for System-based Drug Research and Center for NanoScience (CeNS), Ludwig-Maximilians-Universität, Butenandtstrasse 5-13, 81377 Munich, Germany
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Wang H, Shi HB, Yin SK. Polyamidoamine dendrimers as gene delivery carriers in the inner ear: How to improve transfection efficiency. Exp Ther Med 2011; 2:777-781. [PMID: 22977574 DOI: 10.3892/etm.2011.296] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2011] [Accepted: 06/10/2011] [Indexed: 01/17/2023] Open
Abstract
Hair cells in the cochlea can be damaged by various insults, including noise, drugs, infections and presbycusis, which may cause sensorineural hearing loss. Gene therapy is a novel therapeutic technology that, recently, has led to the idea of treating inner ear diseases on a genetic level. Depending on their characteristics, such as a high efficiency in delivery, the capability of specific targeting, multifunctionality, biodegradability, non-toxicity, non-immunogenicity and the capability of limiting DNA degradation, nanovectors, such as polyamidoamine (PAMAM) dendrimers for cellular gene delivery, provide a promising approach to eradicate genetic diseases. They are a new class of highly branched spherical polymers that are highly soluble in aqueous solution. Their unique surface is composed of positively charged primary amine groups which allow them to form stable complexes with plasmid DNA, oligonucleotides, antibodies and drugs. This review provides an overview of the characteristics of PAMAMs which may be used in gene transfer into the cochlea as well as the efforts to improve their transfection efficiency as gene-delivery carriers.
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Affiliation(s)
- Hui Wang
- Department of Otolaryngology, Affiliated Sixth People's Hospital of Shanghai Jiao Tong University, Otolaryngology Institute of Shanghai Jiao Tong University, Shanghai 200233, P.R. China
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Chitosan enhances transfection efficiency of cationic polypeptides/DNA complexes. Int J Pharm 2011; 410:161-8. [DOI: 10.1016/j.ijpharm.2011.03.008] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2011] [Revised: 03/01/2011] [Accepted: 03/06/2011] [Indexed: 12/16/2022]
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Cheng Y, Zhao L, Li Y, Xu T. Design of biocompatible dendrimers for cancer diagnosis and therapy: current status and future perspectives. Chem Soc Rev 2011; 40:2673-703. [PMID: 21286593 DOI: 10.1039/c0cs00097c] [Citation(s) in RCA: 358] [Impact Index Per Article: 27.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
In the past decade, nanomedicine with its promise of improved therapy and diagnostics has revolutionized conventional health care and medical technology. Dendrimers and dendrimer-based therapeutics are outstanding candidates in this exciting field as more and more biological systems have benefited from these starburst molecules. Anticancer agents can be either encapsulated in or conjugated to dendrimer and be delivered to the tumour via enhanced permeability and retention (EPR) effect of the nanoparticle and/or with the help of a targeting moiety such as antibody, peptides, vitamins, and hormones. Imaging agents including MRI contrast agents, radionuclide probes, computed tomography contrast agents, and fluorescent dyes are combined with the multifunctional nanomedicine for targeted therapy with simultaneous cancer diagnosis. However, an important question reported with dendrimer-based therapeutics as well as other nanomedicines to date is the long-term viability and biocompatibility of the nanotherapeutics. This critical review focuses on the design of biocompatible dendrimers for cancer diagnosis and therapy. The biocompatibility aspects of dendrimers such as nanotoxicity, long-term circulation, and degradation are discussed. The construction of novel dendrimers with biocompatible components, and the surface modification of commercially available dendrimers by PEGylation, acetylation, glycosylation, and amino acid functionalization have been proposed as available strategies to solve the safety problem of dendrimer-based nanotherapeutics. Also, exciting opportunities and challenges on the development of dendrimer-based nanoplatforms for targeted cancer diagnosis and therapy are reviewed (404 references).
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Affiliation(s)
- Yiyun Cheng
- School of Life Sciences, East China Normal University, Shanghai, 200062, People's Republic of China.
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Deng J, Zhou Y, Xu B, Mai K, Deng Y, Zhang LM. Dendronized Chitosan Derivative as a Biocompatible Gene Delivery Carrier. Biomacromolecules 2011; 12:642-9. [DOI: 10.1021/bm101303f] [Citation(s) in RCA: 60] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Junjie Deng
- DSAPM Lab and PCFM Lab, Institute of Polymer Science, School of Chemistry and Chemical Engineering, Sun Yat-sen University, Guangzhou 510275, China
| | - Yanfang Zhou
- Department of Pathophysiology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou 510080, China
- Department of Pathophysiology, Guangdong Medical College, Dongguan 523808, China
| | - Bo Xu
- Department of Pathophysiology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou 510080, China
| | - Kaijin Mai
- DSAPM Lab and PCFM Lab, Institute of Polymer Science, School of Chemistry and Chemical Engineering, Sun Yat-sen University, Guangzhou 510275, China
| | - Yubin Deng
- Department of Pathophysiology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou 510080, China
| | - Li-Ming Zhang
- DSAPM Lab and PCFM Lab, Institute of Polymer Science, School of Chemistry and Chemical Engineering, Sun Yat-sen University, Guangzhou 510275, China
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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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Thankappan UP, Madhusudana SN, Desai A, Jayamurugan G, Rajesh YBRD, Jayaraman N. Dendritic Poly(ether imine) Based Gene Delivery Vector. Bioconjug Chem 2010; 22:115-9. [DOI: 10.1021/bc1003108] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
| | | | - Anita Desai
- Department of Neurovirology, National Institute of Mental Health & Neurosciences, Bangalore 560029, India
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Liu J, Jiang Z, Zhou J, Zhang S, Saltzman WM. Enzyme-synthesized poly(amine-co-esters) as nonviral vectors for gene delivery. J Biomed Mater Res A 2010; 96:456-65. [DOI: 10.1002/jbm.a.32994] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2010] [Revised: 09/28/2010] [Accepted: 10/13/2010] [Indexed: 11/06/2022]
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A duplex oligodeoxynucleotide-dendrimer bioconjugate as a novel delivery vehicle for doxorubicin in in vivo cancer therapy. J Control Release 2010; 155:88-95. [PMID: 20854858 DOI: 10.1016/j.jconrel.2010.09.008] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2010] [Revised: 08/24/2010] [Accepted: 09/12/2010] [Indexed: 01/17/2023]
Abstract
We designed a bioconjugate between duplex oligodeoxynucleotides (dODNs) and a dendrimer (DEN) and demonstrate its feasibility as a novel delivery system for doxorubicin (Dox) in animal tumor models and against cancer cells in vitro. The dODNs-DEN conjugates formed stable complexes with Dox (~184 Dox molecules per conjugate) and the resulting Dox-loaded conjugate exhibited a sustained drug release pattern both in vitro and in vivo. Pharmacokinetic studies showed that Dox-loaded dODNs-DEN conjugates were cleared from plasma much more slowly (up to 5.3h) than was free Dox (0.65h). Furthermore, tumors retained a higher amount of Dox in mice treated with the conjugate group compared to that of free Dox-treated group at the same dosage. In mice bearing 4T1 murine breast tumor allografts, the dendrimer conjugate, at a Dox concentration of 1mg/kg, was more effective than the equivalent concentration of free Dox and tumor size reduction was equivalent to that seen using 4mg/kg free Dox. We observed no severe systemic toxicity or cardiotoxicity in mice treated with the conjugate, as indicated by body weight change and heart tissue histology. These findings indicate that dODNs-DEN conjugates can be used to administer Dox with improved pharmacokinetics, lower toxicity, and an increased ability to concentrate drugs in tumors, compared with free drug, and that such conjugates are effective against tumors in vivo.
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Nam HY, McGinn A, Kim PH, Kim SW, Bull DA. Primary cardiomyocyte-targeted bioreducible polymer for efficient gene delivery to the myocardium. Biomaterials 2010; 31:8081-7. [PMID: 20674007 DOI: 10.1016/j.biomaterials.2010.07.025] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2010] [Accepted: 07/04/2010] [Indexed: 12/31/2022]
Abstract
A cardiomyocyte-targeted Fas siRNA delivery system was developed using primary cardiomyocyte (PCM) specific peptide-modified polymers with high transfection efficiency and low cytotoxicity. Primary cardiomyocyte (PCM) specific peptide, selected by phage display, was conjugated to bioreducible poly(cystamine bisacrylamide-diaminohexane, CBA-DAH) (PCD). The specificity of the PCM-modified polymer to cardiomyocytes was confirmed by competition study with free PCM ligand and by delivery to non-cardiomyocyte NIH 3T3 fibroblasts. The cellular binding and uptake of the PCM-polymer/pDNA polyplex was inhibited by addition of free PCM peptide. The impact of PCM conjugation on cellular uptake and transfection efficiency was greater in H9C2 rat cardiomyocytes than in NIH 3T3 cells. Fas siRNA/PCM-polymer polyplexes exhibited significant Fas gene silencing in rat cardiomyocytes under hypoxic conditions, leading to inhibition of cardiomyocyte apoptosis. These findings demonstrate the utility of the addition of a primary cardiomyocyte (PCM) specific peptide modification to a bioreducible polymer for targeted delivery of Fas siRNA to inhibit cardiomyocyte apoptosis.
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Affiliation(s)
- Hye Y Nam
- Center for Controlled Chemical Delivery (CCCD), Department of Pharmaceutics and Pharmaceutical Chemistry, University of Utah, Salt Lake City, UT 84112, USA
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