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Hou X, Zhang H, Li H, Zhang D. Magnetic albumin immuno-nanospheres as an efficient gene delivery system for a potential use in lung cancer: preparation, in vitro targeting and biological effect analysis. J Drug Target 2015; 24:247-56. [PMID: 26325231 DOI: 10.3109/1061186x.2015.1070857] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Magnetic albumin immuno-nanospheres (MAINs), simultaneously loaded with super-paramagnetic iron oxide nanoparticles for targeting application and anticancer gene, plasmid-survivin/shRNA (pshRNA) and modified with anti-EGFR monoclonal antibody Cetuximab for targeting and treatment agents, were prepared for targeting lung cancer. Transmission electron microscopy images and transfection photographs, respectively, showed that magnetic nanoparticles and pshRNA were successfully encased in the albumin nanospheres. The release profiles in vitro indicated that nanospheres had an obvious effect of sustained release of pshRNA. The results of slide agglutination test and immunofluorescence analysis demonstrated that the immuno-nanospheres retained the immuno-reactivity of Cetuximab. The MAINs significantly increased adherence and uptake by GLC-82 lung cancer cells over-expressed epidermal growth factor receptor over a magnetic albumin nanospheres (MANs) control. The pshRNA-loaded MAINs formulation was more effective than equimolar doses of free Cetuximab, single magnetic targeting with pshRNA (pshRNA-loaded MANs) or single monoclonal antibody targeting with pshRNA (pshRNA-loaded AINs) in the treatment of GLC-82 lung cancer cells. Collectively, the study indicates that the novel pshRNA-loaded magnetic immuno-nanospheres represent a promising approach for magnetic and monoclonal antibody-dependent gene targeting in lung cancer therapy.
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Affiliation(s)
- Xinxin Hou
- a School of Medicine of Southeast University , Nanjing , Jiangsu , P.R. China .,b School of Medicine of Henan Polytechnic University , Jiaozuo , Henan , P.R. China , and
| | - Hao Zhang
- a School of Medicine of Southeast University , Nanjing , Jiangsu , P.R. China
| | - Hongbo Li
- c Department of Ultrasound in Medicine , The First Affiliated Hospitial (Jiangsu Province of TCM), Nanjing University of Chinese Medicine , Nanjing , Jiangsu , P.R. China
| | - Dongsheng Zhang
- a School of Medicine of Southeast University , Nanjing , Jiangsu , P.R. China
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Dayyani N, Khoee S, Ramazani A. Design and synthesis of pH-sensitive polyamino-ester magneto-dendrimers: Surface functional groups effect on viability of human prostate carcinoma cell lines DU145. Eur J Med Chem 2015; 98:190-202. [PMID: 26021708 DOI: 10.1016/j.ejmech.2015.05.028] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2014] [Revised: 04/04/2015] [Accepted: 05/19/2015] [Indexed: 12/11/2022]
Abstract
Novel pH-sensitive, biocompatible and biodegradable magneto-dendrimers with OH and/or NH2 functional groups based on poly amino-ester were synthesized for delivery of anti-cancer drugs. Magnetite nanoparticles (MNPs) were synthesized by the co-precipitation method and their surfaces were modified by 3-aminopropyl triethoxysilane. The first and second generations of the magneto-dendrimer with hydroxyl end groups were produced by sequential acrylation and Michael addition reactions using the required amounts of acryloyl chloride and diethanolamine, respectively. The dendrimer containing amino functional surface groups up to second generation was synthesized by the same method using the necessary amounts of acryloyl chloride and ethylenediamine. These dendrimers were fully characterized by the Fourier transform infrared spectroscopy (FT-IR), thermogravimetric analysis (TGA), dynamic light scattering (DLS) and zeta potential analysis, vibrating-sample magnetometer (VSM), scanning electron microscope (SEM), transmission electron microscopy (TEM) and selected area electron diffraction (SAED). In-vitro release profiles of the drug-loaded magnetic nanoparticles and their cytotoxicity assay were investigated at two pHs (7.4 and 5.8). The hydrolytic degradation behavior of magneto-dendrimers was evaluated in PBS buffer. Our research suggests that magneto-dendrimers having amine or hydroxyl functional groups could be considered as the suitable nanocarriers for therapy applications.
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Affiliation(s)
- Nahid Dayyani
- Department of Chemistry, University of Zanjan, P.O. Box 45195-313, Zanjan, Iran
| | - Sepideh Khoee
- Polymer Laboratory, Chemistry Department, School of Science, University of Tehran, P.O. Box 14155-6455, Tehran, Iran.
| | - Ali Ramazani
- Department of Chemistry, University of Zanjan, P.O. Box 45195-313, Zanjan, Iran
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Kim YD, Park TE, Singh B, Maharjan S, Choi YJ, Choung PH, Arote RB, Cho CS. Nanoparticle-mediated delivery of siRNA for effective lung cancer therapy. Nanomedicine (Lond) 2015; 10:1165-88. [DOI: 10.2217/nnm.14.214] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
Lung cancer is one of the most lethal diseases worldwide, and the survival rate is less than 15% even after the treatment. Unfortunately, chemotherapeutic treatments for lung cancer are accompanied by severe side effects, lack of selectivity and multidrug resistance. In order to overcome the limitations of conventional chemotherapy, nanoparticle-mediated RNA interference drugs represent a potential new approach due to selective silencing effect of oncogenes and multidrug resistance related genes. In this review, we provide recent advancements on nanoparticle-mediated siRNA delivery strategies including lipid system, polymeric system and rigid nanoparticles for lung cancer therapies. Importantly, codelivery of siRNA with conventional anticancer drugs and recent theranostic agents that offer great potential for lung cancer therapy is covered.
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Affiliation(s)
- Young-Dong Kim
- Department of Molecular Genetics, Dental Research Institute, School of Dentistry, Seoul National University, Seoul 110-749, Republic of Korea
| | - Tae-Eun Park
- Department of Agricultural Biotechnology & Research Institute for Agriculture & Life Sciences, Seoul National University, Seoul 151-921, Republic of Korea
| | - Bijay Singh
- Department of Agricultural Biotechnology & Research Institute for Agriculture & Life Sciences, Seoul National University, Seoul 151-921, Republic of Korea
| | - Sushila Maharjan
- Department of Agricultural Biotechnology & Research Institute for Agriculture & Life Sciences, Seoul National University, Seoul 151-921, Republic of Korea
| | - Yun-Jaie Choi
- Department of Agricultural Biotechnology & Research Institute for Agriculture & Life Sciences, Seoul National University, Seoul 151-921, Republic of Korea
| | - Pill-Hoon Choung
- Department of Oral & Maxillofacial Surgery & Dental Research Institute, School of Dentistry, Seoul National University, Seoul 110-749, Republic of Korea
| | - Rohidas B. Arote
- Department of Molecular Genetics, Dental Research Institute, School of Dentistry, Seoul National University, Seoul 110-749, Republic of Korea
| | - Chong-Su Cho
- Department of Agricultural Biotechnology & Research Institute for Agriculture & Life Sciences, Seoul National University, Seoul 151-921, Republic of Korea
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Majidi S, Zeinali Sehrig F, Samiei M, Milani M, Abbasi E, Dadashzadeh K, Akbarzadeh A. Magnetic nanoparticles: Applications in gene delivery and gene therapy. ARTIFICIAL CELLS NANOMEDICINE AND BIOTECHNOLOGY 2015; 44:1186-93. [DOI: 10.3109/21691401.2015.1014093] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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Scimia MC, Sydnes KE, Zuppo DA, Koch WJ. Methods to improve cardiac gene therapy expression. Expert Rev Cardiovasc Ther 2014; 12:1317-26. [DOI: 10.1586/14779072.2014.967683] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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56
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Choi YS, Lee MY, David AE, Park YS. Nanoparticles for gene delivery: therapeutic and toxic effects. Mol Cell Toxicol 2014. [DOI: 10.1007/s13273-014-0001-3] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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57
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Pershina AG, Sazonov AE, Filimonov VD. Magnetic nanoparticles–DNA interactions: design and applications of nanobiohybrid systems. RUSSIAN CHEMICAL REVIEWS 2014. [DOI: 10.1070/rc2014v083n04abeh004412] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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58
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Kami D, Kitani T, Kishida T, Mazda O, Toyoda M, Tomitaka A, Ota S, Ishii R, Takemura Y, Watanabe M, Umezawa A, Gojo S. Pleiotropic functions of magnetic nanoparticles for ex vivo gene transfer. NANOMEDICINE-NANOTECHNOLOGY BIOLOGY AND MEDICINE 2014; 10:1165-74. [PMID: 24709330 DOI: 10.1016/j.nano.2014.03.018] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/17/2013] [Revised: 03/08/2014] [Accepted: 03/27/2014] [Indexed: 11/15/2022]
Abstract
UNLABELLED Gene transfer technique has various applications, ranging from cellular biology to medical treatments for diseases. Although nonviral vectors, such as episomal vectors, have been developed, it is necessary to improve their gene transfer efficacy. Therefore, we attempted to develop a highly efficient gene delivery system combining an episomal vector with magnetic nanoparticles (MNPs). In comparison with the conventional method using transfection reagents, polyethylenimine-coated MNPs introduced episomal vectors more efficiently under a magnetic field and could express the gene in mammalian cells with higher efficiency and for longer periods. This novel in vitro separation method of gene-introduced cells utilizing the magnetic property of MNPs significantly facilitated the separation of cells of interest. Transplanted cells in vivo were detected using magnetic resonance. These results suggest that MNPs play multifunctional roles in ex vivo gene transfer, such as improvement of gene transfer efficacy, separation of cells, and detection of transplanted cells. FROM THE CLINICAL EDITOR This study convincingly demonstrates enhanced efficiency of gene transfer via magnetic nanoparticles. The method also enables magnetic sorting of cells positive for the transferred gene, and in vivo monitoring of the process with MRI.
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Affiliation(s)
- Daisuke Kami
- Department of Regenerative Medicine, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Tomoya Kitani
- Department of Regenerative Medicine, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Tsunao Kishida
- Department of Immunology, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Osam Mazda
- Department of Immunology, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Masashi Toyoda
- Department of Vascular Medicine, Tokyo Metropolitan Institute of Gerontology, Tokyo, Japan
| | - Asahi Tomitaka
- Department of Materials Science and Engineering, University of Washington, Seattle, WA, USA
| | - Satoshi Ota
- Faculty of Engineering, Yokohama National University, Kanagawa, Japan
| | - Ryuga Ishii
- Department of Reproductive Biology and Pathology, National Institute of Child Health and Development, Tokyo, Japan
| | - Yasushi Takemura
- Faculty of Engineering, Yokohama National University, Kanagawa, Japan
| | | | - Akihiro Umezawa
- Department of Reproductive Biology and Pathology, National Institute of Child Health and Development, Tokyo, Japan
| | - Satoshi Gojo
- Department of Regenerative Medicine, Kyoto Prefectural University of Medicine, Kyoto, Japan.
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59
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Zhang L, Li Y, Yu JC, Chen YY, Chan KM. Assembly of polyethylenimine-functionalized iron oxide nanoparticles as agents for DNA transfection with magnetofection technique. J Mater Chem B 2014; 2:7936-7944. [DOI: 10.1039/c4tb01577k] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In this work two PEI-functionalized magnetic DNA carriers were prepared for DNA transfection, and the intracellular trafficking of magnetofectins was studied.
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Affiliation(s)
- Lei Zhang
- Department of Chemistry
- The Chinese University of Hong Kong
- Shatin, N.T., P. R. China
| | - Yecheng Li
- Department of Chemistry
- The Chinese University of Hong Kong
- Shatin, N.T., P. R. China
| | - Jimmy C. Yu
- Department of Chemistry
- The Chinese University of Hong Kong
- Shatin, N.T., P. R. China
| | - Ying Ying Chen
- School of Life Sciences
- The Chinese University of Hong Kong
- Shatin, N.T., P. R. China
| | - King Ming Chan
- School of Life Sciences
- The Chinese University of Hong Kong
- Shatin, N.T., P. R. China
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60
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Tomitaka =A, Jo JI, Aoki I, Tabata Y. Preparation of biodegradable iron oxide nanoparticles with gelatin for magnetic resonance imaging. Inflamm Regen 2014. [DOI: 10.2492/inflammregen.34.045] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
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61
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Ten E, Ling C, Wang Y, Srivastava A, Dempere LA, Vermerris W. Lignin nanotubes as vehicles for gene delivery into human cells. Biomacromolecules 2013; 15:327-38. [PMID: 24308459 DOI: 10.1021/bm401555p] [Citation(s) in RCA: 87] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Lignin nanotubes (LNTs) synthesized from the aromatic plant cell wall polymer lignin in a sacrificial alumina membrane template have as useful features their flexibility, ease of functionalization due to the availability of many functional groups, label-free detection by autofluorescence, and customizable optical properties. In this report we show that the physicochemical properties of LNTs can be varied over a wide range to match requirements for specific applications by using lignin with different subunit composition, a function of plant species and genotype, and by choosing the lignin isolation method (thioglycolic acid, phosphoric acid, sulfuric acid (Klason), sodium hydroxide lignin), which influences the size and reactivity of the lignin fragments. Cytotoxicity studies with human HeLa cells showed that concentrations of up to 90 mg/mL are tolerated, which is a 10-fold higher concentration than observed for single- or multiwalled carbon nanotubes (CNTs). Confocal microscopy imaging revealed that all LNT formulations enter HeLa cells without auxiliary agents and that LNTs made from NaOH-lignin penetrate the cell nucleus. We further show that DNA can adsorb to LNTs. Consequently, exposure of HeLa cells to LNTs coated with DNA encoding the green fluorescent protein (GFP) leads to transfection and expression of GFP. The highest transfection efficiency was obtained with LNTs made from NaOH-lignin due to a combination of high DNA binding capacity and DNA delivery directly into the nucleus. These combined features of LNTs make LNTs attractive as smart delivery vehicles of DNA without the cytotoxicity associated with CNTs or the immunogenicity of viral vectors.
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Affiliation(s)
- Elena Ten
- Department of Microbiology and Cell Science, ‡Genetics Institute, §Department of Pediatrics, and #Powell Gene Therapy Center, University of Florida , Gainesville, Florida 32610, United States
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62
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Kwiatkowska A, Nandhu MS, Behera P, Chiocca EA, Viapiano MS. Strategies in gene therapy for glioblastoma. Cancers (Basel) 2013; 5:1271-305. [PMID: 24202446 PMCID: PMC3875940 DOI: 10.3390/cancers5041271] [Citation(s) in RCA: 69] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2013] [Accepted: 10/15/2013] [Indexed: 01/01/2023] Open
Abstract
Glioblastoma (GBM) is the most aggressive form of brain cancer, with a dismal prognosis and extremely low percentage of survivors. Novel therapies are in dire need to improve the clinical management of these tumors and extend patient survival. Genetic therapies for GBM have been postulated and attempted for the past twenty years, with variable degrees of success in pre-clinical models and clinical trials. Here we review the most common approaches to treat GBM by gene therapy, including strategies to deliver tumor-suppressor genes, suicide genes, immunomodulatory cytokines to improve immune response, and conditionally-replicating oncolytic viruses. The review focuses on the strategies used for gene delivery, including the most common and widely used vehicles (i.e., replicating and non-replicating viruses) as well as novel therapeutic approaches such as stem cell-mediated therapy and nanotechnologies used for gene delivery. We present an overview of these strategies, their targets, different advantages, and challenges for success. Finally, we discuss the potential of gene therapy-based strategies to effectively attack such a complex genetic target as GBM, alone or in combination with conventional therapy.
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Affiliation(s)
- Aneta Kwiatkowska
- Department of Neurosurgery, Brigham and Women's Hospital and Harvard Medical School, Boston, MA 02115, USA.
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63
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Yu CJ, Wu SM, Tseng WL. Magnetite nanoparticle-induced fluorescence quenching of adenosine triphosphate-BODIPY Conjugates: application to adenosine triphosphate and pyrophosphate sensing. Anal Chem 2013; 85:8559-65. [PMID: 23919280 DOI: 10.1021/ac400919j] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
We report that magnetite nanoparticles (Fe3O4 NPs) act as an efficient quencher for boron dipyrromethene-conjugated adenosine 5'-triphosphate (BODIPY-ATP) that is highly fluorescent in bulk solution. BODIPY-ATP molecules attached to the surface of Fe3O4 NPs through the coordination between the triphosphate group of BODIPY-ATP and Fe(3+)/Fe(2+) on the NP surface. The formed complexes induced an apparent reduction in the BODIPY-ATP fluorescence resulting from an oxidative-photoinduced electron transfer (PET) from the BODIPY-ATP excited state to an unfilled d shell of Fe(3+)/Fe(2+) on the NP surface. A comparison of the Stern-Volmer quenching constant between Fe(3+) and Fe(2+) suggests that Fe(3+) on the NP surface dominantly controls this quenching process. The efficiency for Fe3O4 NP-induced fluorescence quenching of the BODIPY-ATP was enhanced by increasing the concentration of Fe3O4 NPs and lowering the pH of the solution to below 6.0. We found that pyrophosphate and ATP compete with BODIPY-ATP for binding to Fe3O4 NPs. Thus, we amplified BODIPY-ATP fluorescence in the presence of increasing the pyrophosphate and ATP concentration; the detection limits at a signal-to-noise ratio of 3 for pyrophosphate and ATP were determined to be 7 and 30 nM, respectively. The Fe3O4 NP-based competitive binding assay detected ATP and pyrophosphate in only 5 min. The selectivity of this assay for ATP over metal ions, amino acids, and adenosine analogues is particularly high. The practicality of using the developed method to determine ATP in a single drop of blood is also validated.
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Affiliation(s)
- Cheng-Ju Yu
- Department of Chemistry, National Sun Yat-sen University , Taiwan
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64
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Cohen Y, Shoushan SY. Magnetic nanoparticles-based diagnostics and theranostics. Curr Opin Biotechnol 2013; 24:672-81. [DOI: 10.1016/j.copbio.2013.01.006] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2012] [Revised: 01/08/2013] [Accepted: 01/08/2013] [Indexed: 12/17/2022]
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Tuning the magnetic properties of nanoparticles. Int J Mol Sci 2013; 14:15977-6009. [PMID: 23912237 PMCID: PMC3759896 DOI: 10.3390/ijms140815977] [Citation(s) in RCA: 278] [Impact Index Per Article: 25.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2013] [Revised: 06/22/2013] [Accepted: 07/15/2013] [Indexed: 01/06/2023] Open
Abstract
The tremendous interest in magnetic nanoparticles (MNPs) is reflected in published research that ranges from novel methods of synthesis of unique nanoparticle shapes and composite structures to a large number of MNP characterization techniques, and finally to their use in many biomedical and nanotechnology-based applications. The knowledge gained from this vast body of research can be made more useful if we organize the associated results to correlate key magnetic properties with the parameters that influence them. Tuning these properties of MNPs will allow us to tailor nanoparticles for specific applications, thus increasing their effectiveness. The complex magnetic behavior exhibited by MNPs is governed by many factors; these factors can either improve or adversely affect the desired magnetic properties. In this report, we have outlined a matrix of parameters that can be varied to tune the magnetic properties of nanoparticles. For practical utility, this review focuses on the effect of size, shape, composition, and shell-core structure on saturation magnetization, coercivity, blocking temperature, and relaxation time.
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66
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Subramanian M, Lim J, Dobson J. Enhanced nanomagnetic gene transfection of human prenatal cardiac progenitor cells and adult cardiomyocytes. PLoS One 2013; 8:e69812. [PMID: 23936108 PMCID: PMC3729560 DOI: 10.1371/journal.pone.0069812] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2013] [Accepted: 06/12/2013] [Indexed: 01/05/2023] Open
Abstract
Magnetic nanoparticle-based gene transfection has been shown to be an effective, non-viral technique for delivery of both plasmid DNA and siRNA into cells in culture. It has several advantages over other non-viral delivery techniques, such as short transfection times and high cell viability. These advantages have been demonstrated in a number of primary cells and cell lines. Here we report that oscillating magnet array-based nanomagnetic transfection significantly improves transfection efficiency in both human prenatal cardiac progenitor cells and adult cardiomyocytes when compared to static magnetofection, cationic lipid reagents and electroporation, while maintaining high cell viability. In addition, transfection of adult cardiomyocytes was improved further by seeding the cells onto Collagen I-coated plates, with transfection efficiencies of up to 49% compared to 24% with lipid reagents and 19% with electroporation. These results demonstrate that oscillating nanomagnetic transfection far outperforms other non-viral transfection techniques in these important cells.
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Affiliation(s)
- Mahendran Subramanian
- nanoTherics Limited, Keele University Science and Business Park, Newcastle under Lyme, Staffordshire, United Kingdom
| | - Jenson Lim
- nanoTherics Limited, Keele University Science and Business Park, Newcastle under Lyme, Staffordshire, United Kingdom
- Institute of Microbiology and Infection, School of Biosciences, University of Birmingham, Edgbaston, Birmingham, United Kingdom
| | - Jon Dobson
- J. Crayton Pruitt Family Department of Biomedical Engineering and Department of Material Science and Engineering, University of Florida, Gainesville, Florida, United States of America
- Institute for Cell Engineering and Regenerative Medicine, University of Florida Gainesville, Florida, United States of America
- Institute for Science and Technology in Medicine, Keele University, Stoke-on-Trent, Staffordshire, United Kingdom
- * E-mail:
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67
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Katz MG, Fargnoli AS, Bridges CR. Myocardial gene transfer: routes and devices for regulation of transgene expression by modulation of cellular permeability. Hum Gene Ther 2013; 24:375-92. [PMID: 23427834 DOI: 10.1089/hum.2012.241] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Heart diseases are major causes of morbidity and mortality in Western society. Gene therapy approaches are becoming promising therapeutic modalities to improve underlying molecular processes affecting failing cardiomyocytes. Numerous cardiac clinical gene therapy trials have yet to demonstrate strong positive results and advantages over current pharmacotherapy. The success of gene therapy depends largely on the creation of a reliable and efficient delivery method. The establishment of such a system is determined by its ability to overcome the existing biological barriers, including cellular uptake and intracellular trafficking as well as modulation of cellular permeability. In this article, we describe a variety of physical and mechanical methods, based on the transient disruption of the cell membrane, which are applied in nonviral gene transfer. In addition, we focus on the use of different physiological techniques and devices and pharmacological agents to enhance endothelial permeability. Development of these methods will undoubtedly help solve major problems facing gene therapy.
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Affiliation(s)
- Michael G Katz
- Thoracic and Cardiovascular Surgery, Sanger Heart & Vascular Institute, Carolinas Healthcare System, Charlotte, NC 28203, USA
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68
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Vasylyev S, Damm C, Segets D, Hanisch M, Taccardi N, Wasserscheid P, Peukert W. Synthesis of silver nanoparticles in melts of amphiphilic polyesters. NANOTECHNOLOGY 2013; 24:115604. [PMID: 23449006 DOI: 10.1088/0957-4484/24/11/115604] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
The current work presents a one-step procedure for the synthesis of amphiphilic silver nanoparticles suitable for production of silver-filled polymeric materials. This solvent free synthesis via reduction of Tollens' reagent as silver precursor in melts of amphiphilic polyesters consisting of hydrophilic poly(ethylene glycol) blocks and hydrophobic alkyl chains allows the production of silver nanoparticles without any by-product formation. This makes them especially interesting for the production of medical devices with antimicrobial properties. In this article the influences of the chain length of the hydrophobic block in the amphiphilic polyesters and the process temperature on the particle size distribution (PSD) and the stability of the particles against agglomeration are discussed. According to the results of spectroscopic and viscosimetric investigations the silver precursor is reduced to elemental silver nanoparticles by a single electron transfer process from the poly(ethylene glycol) chain to the silver ion.
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Affiliation(s)
- S Vasylyev
- Institute of Particle Technology, Friedrich-Alexander University Erlangen-Nuremberg, Erlangen, Germany
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69
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Colilla M, González B, Vallet-Regí M. Mesoporous silica nanoparticles for the design of smart delivery nanodevices. Biomater Sci 2012; 1:114-134. [PMID: 32481793 DOI: 10.1039/c2bm00085g] [Citation(s) in RCA: 141] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Mesoporous silica nanoparticles (MSNPs) are receiving growing attention by the scientific community for their groundbreaking potential in nanomedicine. It is possible to load huge amounts of cargo into the mesopore voids and capping the pore entrances with different nanogates. Different internal or external stimuli can provoke the nanocap removal and trigger the departure of the cargo, which permits the design of stimuli-responsive drug delivery nanodevices. It is also feasible to combine the multifunctionality of MSNPs with the wide range of applications of magnetic nanoparticles (mNPs), giving rise to advanced smart nanosystems whose features and functionality can be tailored attending to specific clinical needs. This review describes the possible combinations of MSNPs, stimuli-responsive nanocaps and mNPs and the current scientific challenges aimed at accelerating the progression from bench to bedside.
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Affiliation(s)
- Montserrat Colilla
- Departamento de Química Inorgánica y Bioinorgánica, Facultad de Farmacia, Universidad Complutense de Madrid, Plaza Ramón y Cajal s/n, 28040 Madrid, Spain.
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70
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Owen J, Pankhurst Q, Stride E. Magnetic targeting and ultrasound mediated drug delivery: Benefits, limitations and combination. Int J Hyperthermia 2012; 28:362-73. [DOI: 10.3109/02656736.2012.668639] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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71
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Ma Y, Yan Z, Xu H, Gu H. The interaction of GSSG modified magnetic nanoparticles with SPC-A1 cells in vitro. ACTA ACUST UNITED AC 2012. [DOI: 10.1007/s11434-012-5185-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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72
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Majewski AP, Schallon A, Jérôme V, Freitag R, Müller AHE, Schmalz H. Dual-Responsive Magnetic Core–Shell Nanoparticles for Nonviral Gene Delivery and Cell Separation. Biomacromolecules 2012; 13:857-66. [DOI: 10.1021/bm2017756] [Citation(s) in RCA: 104] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Alexander P. Majewski
- Makromolekulare
Chemie II and ‡Bioprozesstechnik, Universität Bayreuth, 95440 Bayreuth, Germany
| | - Anja Schallon
- Makromolekulare
Chemie II and ‡Bioprozesstechnik, Universität Bayreuth, 95440 Bayreuth, Germany
| | - Valérie Jérôme
- Makromolekulare
Chemie II and ‡Bioprozesstechnik, Universität Bayreuth, 95440 Bayreuth, Germany
| | - Ruth Freitag
- Makromolekulare
Chemie II and ‡Bioprozesstechnik, Universität Bayreuth, 95440 Bayreuth, Germany
| | - Axel H. E. Müller
- Makromolekulare
Chemie II and ‡Bioprozesstechnik, Universität Bayreuth, 95440 Bayreuth, Germany
| | - Holger Schmalz
- Makromolekulare
Chemie II and ‡Bioprozesstechnik, Universität Bayreuth, 95440 Bayreuth, Germany
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A model for predicting field-directed particle transport in the magnetofection process. Pharm Res 2012; 29:1366-79. [PMID: 22350801 DOI: 10.1007/s11095-012-0681-0] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2011] [Accepted: 01/06/2012] [Indexed: 02/05/2023]
Abstract
PURPOSE To analyze the magnetofection process in which magnetic carrier particles with surface-bound gene vectors are attracted to target cells for transfection using an external magnetic field and to obtain a fundamental understanding of the impact of key factors such as particle size and field strength on the gene delivery process. METHODS A numerical model is used to study the field-directed transport of the carrier particle-gene vector complex to target cells in a conventional multiwell culture plate system. The model predicts the transport dynamics and the distribution of particle accumulation at the target cells. RESULTS The impact of several factors that strongly influence gene vector delivery is assessed including the properties of the carrier particles, the strength of the field source, and its extent and proximity relative to the target cells. CONCLUSIONS The study demonstrates that modeling can be used to predict and optimize gene vector delivery in the magnetofection process for novel and conventional in vitro systems.
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Silica-iron oxide magnetic nanoparticles modified for gene delivery: a search for optimum and quantitative criteria. Pharm Res 2012; 29:1344-65. [PMID: 22222384 DOI: 10.1007/s11095-011-0661-9] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2011] [Accepted: 12/19/2011] [Indexed: 01/01/2023]
Abstract
PURPOSE To optimize silica-iron oxide magnetic nanoparticles with surface phosphonate groups decorated with 25-kD branched polyethylenimine (PEI) for gene delivery. METHODS Surface composition, charge, colloidal stabilities, associations with adenovirus, magneto-tranduction efficiencies, cell internalizations, in vitro toxicities and MRI relaxivities were tested for the particles decorated with varying amounts of PEI. RESULTS Moderate PEI-decoration of MNPs results in charge reversal and destabilization. Analysis of space and time resolved concentration changes during centrifugation clearly revealed that at >5% PEI loading flocculation gradually decreases and sufficient stabilization is achieved at >10%. The association with adenovirus occurred efficiently at levels over 5% PEI, resulting in the complexes stable in 50% FCS at a PEI-to-iron w/w ratio of ≥7%; the maximum magneto-transduction efficiency was achieved at 9-12% PEI. Primary silica iron oxide nanoparticles and those with 11.5% PEI demonstrated excellent r(2)* relaxivity values (>600 s(-1)(mM Fe)(-1)) for the free and cell-internalized particles. CONCLUSIONS Surface decoration of the silica-iron oxide nanoparticles with a PEI-to-iron w/w ratio of 10-12% yields stable aqueous suspensions, allows for efficient viral gene delivery and labeled cell detection by MRI.
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Nanoparticles for Gene Delivery into Stem Cells and Embryos. MULTIFACETED DEVELOPMENT AND APPLICATION OF BIOPOLYMERS FOR BIOLOGY, BIOMEDICINE AND NANOTECHNOLOGY 2012. [DOI: 10.1007/12_2012_194] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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Salas G, Costo R, Morales MDP. Synthesis of Inorganic Nanoparticles. NANOBIOTECHNOLOGY - INORGANIC NANOPARTICLES VS ORGANIC NANOPARTICLES 2012. [DOI: 10.1016/b978-0-12-415769-9.00002-9] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/04/2022]
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Xu Y, Heberlein WE, Mahmood M, Orza AI, Karmakar A, Mustafa T, Biris AR, Casciano D, Biris AS. Progress in materials for thermal ablation of cancer cells. ACTA ACUST UNITED AC 2012. [DOI: 10.1039/c2jm32792a] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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