201
|
Wang L, Liu J, Dai Y, Yang Q, Zhang Y, Yang P, Cheng Z, Lian H, Li C, Hou Z, Ma P, Lin J. Efficient gene delivery and multimodal imaging by lanthanide-based upconversion nanoparticles. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2014; 30:13042-13051. [PMID: 25291048 DOI: 10.1021/la503444g] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Nanoparticles have been explored as nonviral gene carriers for years because of the simplicity of surface modification and lack of immune response. Lanthanide-based upconversion nanoparticles (UCNPs) are becoming attractive candidates for biomedical applications in virtue of their unique optical properties and multimodality imaging ability. Here, we report a UCNPs-based structure with polyethylenimine coating for both efficient gene transfection and trimodality imaging. Cytotoxicity tests demonstrated that the nanoparticles exhibited significantly decreased cytotoxicity compared to polyethylenimine polymer. Further, in vitro studies revealed that the gene carriers are able to transfer the enhanced green fluorescence protein (EGFP) plasmid DNA into Hela cells in higher transfection efficiency than PEI. Gene silencing was also examined by delivering bcl-2 siRNA into Hela cells, resulting in significant downregulation of target bcl-2 mRNA. More importantly, we demonstrated the feasibility of upconversion gene carriers to serve as effective contrast agents for MRI/CT/UCL trimodality imaging both in vitro and in vivo. The facile fabrication process, great biocompatibility, enhanced gene transfection efficiency, and great bioimaging ability can make it promising for application in gene therapy.
Collapse
Affiliation(s)
- Lin Wang
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences , Changchun 130022, People's Republic of China
| | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
202
|
Liu Y, Xu Y, Tian Y, Chen C, Wang C, Jiang X. Functional nanomaterials can optimize the efficacy of vaccines. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2014; 10:4505-20. [PMID: 25238620 PMCID: PMC7169483 DOI: 10.1002/smll.201401707] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/12/2014] [Revised: 07/25/2014] [Indexed: 05/03/2023]
Abstract
Nanoscale materials can improve the efficacy of vaccines. Herein we review latest developments that use nanomaterials for vaccines. By highlighting the relationships between the nanoscale physicochemical characteristics and working mechanisms of nanomaterials, this paper shows the current status of the developments where researchers employ functional nanomaterials as vector and/or immunoregulators for vaccines. It also provides us some clues for improving the design and application of nanomaterials to optimize the efficacy of vaccines.
Collapse
Affiliation(s)
- Ye Liu
- Beijing Engineering Research Center for, BioNanotechnology and CAS Key Lab for, Biological Effects of Nanomaterials and Nanosafety, National Center for Nanoscience and Technology, Beijing, 100190, China
| | | | | | | | | | | |
Collapse
|
203
|
Development of poly (I:C) modified doxorubicin loaded magnetic dendrimer nanoparticles for targeted combination therapy. Biomed Pharmacother 2014; 68:979-87. [PMID: 25458787 DOI: 10.1016/j.biopha.2014.10.009] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2014] [Accepted: 10/16/2014] [Indexed: 11/20/2022] Open
Abstract
The objective of this study was to develop and evaluate the anticancer activity and the safety of a combinational drug delivery system using polyamidoamine (PAMAM) dendrimer-coated iron oxide nanoparticles for doxorubicin and poly I:C delivery in vitro. Dendrimer-coated magnetic nanoparticles (DcMNPs) are suitable for drug delivery system as nanocarriers with their following properties, such as surface functional groups, symmetry perfection, internal cavities, nano-size and magnetization. These nanoparticles could be targeted to the tumor site under a magnetic field since they have a magnetic core. DcMNPs were found as a convenient vehicle for targeted doxorubicin delivery in cancer therapy. Poly (I:C) binding on doxorubicin loaded DcMNPs (DcMNPs-Dox) was reported for the first time in the literature. It was also demonstrated that loading of doxorubicin into the cavities of DcMNPs increases the binding efficiency of poly (I:C) to the surface functional groups of dendrimer up to 10 times. When we compare the in vitro cytotoxic properties of doxorubicin, poly (I:C) and poly (I:C) bound doxorubicin loaded DcMNPs (PIC-DcMNPs-Dox), it was observed that PIC-DcMNPs-Dox show the highest cytotoxic effect by passing the cell resistance mechanisms on doxorubicin resistant MCF7 (MCF7/Dox) cells. Results demonstrated that applying PIC-DcMNPs-Dox would improve the efficacy by increasing the biocompatibility of system in blood stream and the toxicity inside tumor cells. These results provide invaluable information and new insight for the design and optimization of a novel combinational drug delivery system for targeted cancer therapy.
Collapse
|
204
|
Yu M, Niu Y, Yang Y, Hartono SB, Yang J, Huang X, Thorn P, Yu C. An approach to prepare polyethylenimine functionalized silica-based spheres with small size for siRNA delivery. ACS APPLIED MATERIALS & INTERFACES 2014; 6:15626-15631. [PMID: 25184370 DOI: 10.1021/am503060n] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
A novel approach has been developed to prepare polyethylenimine functionalized hybrid silica spheres with a diameter of ∼10 nm, which show excellent delivery efficiency of siRNA into osteosarcoma cancer cells and human colon cancer cells with a significant cell inhibition comparable to commercial agents.
Collapse
Affiliation(s)
- Meihua Yu
- Australian Institute for Bioengineering and Nanotechnology and ‡School of Biomedical Sciences, The University of Queensland , Brisbane, QLD 4072, Australia
| | | | | | | | | | | | | | | |
Collapse
|
205
|
Huang X, Tao Z, Praskavich JC, Goswami A, Al-Sharab JF, Minko T, Polshettiwar V, Asefa T. Dendritic silica nanomaterials (KCC-1) with fibrous pore structure possess high DNA adsorption capacity and effectively deliver genes in vitro. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2014; 30:10886-10898. [PMID: 25188675 DOI: 10.1021/la501435a] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
The pore size and pore structure of nanoporous materials can affect the materials' physical properties, as well as potential applications in different areas, including catalysis, drug delivery, and biomolecular therapeutics. KCC-1, one of the newest members of silica nanomaterials, possesses fibrous, large pore, dendritic pore networks with wide pore entrances, large pore size distribution, spacious pore volume and large surface area--structural features that are conducive for adsorption and release of large guest molecules and biomacromolecules (e.g., proteins and DNAs). Here, we report the results of our comparative studies of adsorption of salmon DNA in a series of KCC-1-based nanomaterials that are functionalized with different organoamine groups on different parts of their surfaces (channel walls, external surfaces or both). For comparison the results of our studies of adsorption of salmon DNA in similarly functionalized, MCM-41 mesoporous silica nanomaterials with cylindrical pores, some of the most studied silica nanomaterials for drug/gene delivery, are also included. Our results indicate that, despite their relatively lower specific surface area, the KCC-1-based nanomaterials show high adsorption capacity for DNA than the corresponding MCM-41-based nanomaterials, most likely because of KCC-1's large pores, wide pore mouths, fibrous pore network, and thereby more accessible and amenable structure for DNA molecules to diffuse through. Conversely, the MCM-41-based nanomaterials adsorb much less DNA, presumably because their outer surfaces/cylindrical channel pore entrances can get blocked by the DNA molecules, making the inner parts of the materials inaccessible. Moreover, experiments involving fluorescent dye-tagged DNAs suggest that the amine-grafted KCC-1 materials are better suited for delivering the DNAs adsorbed on their surfaces into cellular environments than their MCM-41 counterparts. Finally, cellular toxicity tests show that the KCC-1-based materials are biocompatible. On the basis of these results, the fibrous and porous KCC-1-based nanomaterials can be said to be more suitable to carry, transport, and deliver DNAs and genes than cylindrical porous nanomaterials such as MCM-41.
Collapse
Affiliation(s)
- Xiaoxi Huang
- Department of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey , 610 Taylor Road, Piscataway, New Jersey 08854, United States
| | | | | | | | | | | | | | | |
Collapse
|
206
|
Dördelmann G, Kozlova D, Karczewski S, Lizio R, Knauer S, Epple M. Calcium phosphate increases the encapsulation efficiency of hydrophilic drugs (proteins, nucleic acids) into poly(d,l-lactide-co-glycolide acid) nanoparticles for intracellular delivery. J Mater Chem B 2014; 2:7250-7259. [DOI: 10.1039/c4tb00922c] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
|
207
|
Nanocarrier mediated delivery of siRNA/miRNA in combination with chemotherapeutic agents for cancer therapy: current progress and advances. J Control Release 2014; 194:238-56. [PMID: 25204288 DOI: 10.1016/j.jconrel.2014.09.001] [Citation(s) in RCA: 251] [Impact Index Per Article: 25.1] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2014] [Revised: 08/29/2014] [Accepted: 09/01/2014] [Indexed: 12/21/2022]
Abstract
Chemotherapeutic agents have certain limitations when it comes to treating cancer, the most important being severe side effects along with multidrug resistance developed against them. Tumor cells exhibit drug resistance due to activation of various cellular level processes viz. activation of drug efflux pumps, anti-apoptotic defense mechanisms, etc. Currently, RNA interference (RNAi) based therapeutic approaches are under vibrant scrutinization to seek cancer cure. Especially small interfering RNA (siRNA) and micro RNA (miRNA), are able to knock down the carcinogenic genes by targeting the mRNA expression, which underlies the uniqueness of this therapeutic approach. Recent research focus in the regime of cancer therapy involves the engagement of targeted delivery of siRNA/miRNA in combinations with other therapeutic agents (such as gene, DNA or chemotherapeutic drug) for targeting permeability glycoprotein (P-gp), multidrug resistant protein 1 (MRP-1), B-cell lymphoma (BCL-2) and other targets that are mainly responsible for resistance in cancer therapy. RNAi-chemotherapeutic drug combinations have also been found to be effective against different molecular targets as well and can increase the sensitization of cancer cells to therapy several folds. However, due to stability issues associated with siRNA/miRNA suitable protective carrier is needed and nanotechnology based approaches have been widely explored to overcome these drawbacks. Furthermore, it has been univocally advocated that the co-delivery of siRNA/miRNA with other chemodrugs significantly enhances their capability to overcome cancer resistance compared to naked counterparts. The objective of this article is to review recent nanocarrier based approaches adopted for the delivery of siRNA/miRNA combinations with other anticancer agents (siRNA/miRNA/pDNA/chemodrugs) to treat cancer.
Collapse
|
208
|
Gene therapy modalities in lung transplantation. Transpl Immunol 2014; 31:165-72. [DOI: 10.1016/j.trim.2014.08.001] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2014] [Revised: 08/16/2014] [Accepted: 08/17/2014] [Indexed: 01/17/2023]
|
209
|
Zhao H, Zhu YD, Sun J, Wei D, Wang KF, Liu M, Fan HS, Zhang XD. Synthesis of hollow hydroxyapatite nanospheres by the control of nucleation and growth in a two phase system. Chem Commun (Camb) 2014; 50:12519-22. [DOI: 10.1039/c4cc05088f] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
210
|
Doerdelmann G, Kozlova D, Epple M. A pH-sensitive poly(methyl methacrylate) copolymer for efficient drug and gene delivery across the cell membrane. J Mater Chem B 2014; 2:7123-7131. [DOI: 10.1039/c4tb01052c] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
|
211
|
del Valle LJ, Bertran O, Chaves G, Revilla-López G, Rivas M, Casas MT, Casanovas J, Turon P, Puiggalí J, Alemán C. DNA adsorbed on hydroxyapatite surfaces. J Mater Chem B 2014; 2:6953-6966. [DOI: 10.1039/c4tb01184h] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
|
212
|
Multi-modal transfection agent based on monodisperse magnetic nanoparticles for stem cell gene delivery and tracking. Biomaterials 2014; 35:7239-47. [DOI: 10.1016/j.biomaterials.2014.05.010] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2014] [Accepted: 05/04/2014] [Indexed: 01/30/2023]
|
213
|
Abstract
Gene-based therapy is the intentional modulation of gene expression in specific cells to treat pathological conditions. This modulation is accomplished by introducing exogenous nucleic acids such as DNA, mRNA, small interfering RNA (siRNA), microRNA (miRNA) or antisense oligonucleotides. Given the large size and the negative charge of these macromolecules, their delivery is typically mediated by carriers or vectors. In this Review, we introduce the biological barriers to gene delivery in vivo and discuss recent advances in material sciences, nanotechnology and nucleic acid chemistry that have yielded promising non-viral delivery systems, some of which are currently undergoing testing in clinical trials. The diversity of these systems highlights the recent progress of gene-based therapy using non-viral approaches.
Collapse
|
214
|
Liu LM, Lu GY, Jiang LP, Zhu JJ. Layered zirconium phosphonate with inorganic–organic hybrid structure: Preparation and its assembly with DNA. J SOLID STATE CHEM 2014. [DOI: 10.1016/j.jssc.2014.03.015] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
|
215
|
Abstract
Gene therapy with siRNA is a promising biotechnology to treat cancer and other diseases. To realize siRNA-based gene therapy, a safe and efficient delivery method is essential. Nanoparticle mediated siRNA delivery is of great importance to overcome biological barriers for systemic delivery in vivo. Based on recent discoveries, endosomal escape is a critical biological barrier to be overcome for siRNA delivery. This feature article focuses on endosomal escape strategies used for nanoparticle mediated siRNA delivery, including cationic polymers, pH sensitive polymers, calcium phosphate, and cell penetrating peptides. Work has been done to develop different endosomal escape strategies based on nanoparticle types, administration routes, and target organ/cell types. Also, enhancement of endosomal escape has been considered along with other aspects of siRNA delivery to ensure target specific accumulation, high cell uptake, and low toxicity. By enhancing endosomal escape and overcoming other biological barriers, great progress has been achieved in nanoparticle mediated siRNA delivery.
Collapse
Affiliation(s)
- Da Ma
- Department of Chemistry, Fudan University, 220 Handan Road, Shanghai, 200433, China.
| |
Collapse
|
216
|
Sun J, Chao J, Huang J, Yin M, Zhang H, Peng C, Zhong Z, Chen N. Uniform small graphene oxide as an efficient cellular nanocarrier for immunostimulatory CpG oligonucleotides. ACS APPLIED MATERIALS & INTERFACES 2014; 6:7926-7932. [PMID: 24712847 DOI: 10.1021/am5012595] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Graphene oxide (GO) has attracted more and more attention as a promising nanomaterial in biomedical research and applications. In this study, we explore the ability of GO as nanocarrier for synthetic DNA strands. Immunostimulatory CpG oligodeoxynucleotides (ODNs) are attached to Poly-L-Lysine (PLL) functionalized, polydisperse GO, or uniform small GO (sGO) nanosheets. Both types of GO-CpG ODN nanoconjugates can be delivered into murine Raw264.7 macrophages and possess immunostimulatory activity, while sGO-CpG appears to be a more efficient stimulator. In addition, sGO-CpG nanosheets exhibit higher cellular uptake but better biocompatibility compared to the larger GO-CpG counterpart. Furthermore, PLL functionalized sGO-CpG has higher immunostimulatory activity than azide functionalized sGO-CpG. Together, our studies provide evidence that sGO can be utilized as an ideal intracellular nanocarrier for synthetic single-stranded DNA, and sGO-PLL-CpG conjugates may serve as a potential proinflammatory therapeutic tool.
Collapse
Affiliation(s)
- Jinli Sun
- College of Life Sciences, Nanjing Agriculture University , Nanjing 210095, China
| | | | | | | | | | | | | | | |
Collapse
|
217
|
Li NK, Kim HS, Nash JA, Lim M, Yingling YG. Progress in molecular modelling of DNA materials. MOLECULAR SIMULATION 2014. [DOI: 10.1080/08927022.2014.913792] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
|
218
|
Okada T, Ozono S, Okamoto M, Takeda Y, Minamisawa HM, Haeiwa T, Sakai T, Mishima S. Magnetic Rattle-Type Core–Shell Particles Containing Iron Compounds with Acid Tolerance by Dense Silica. Ind Eng Chem Res 2014. [DOI: 10.1021/ie500588j] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Tomohiko Okada
- Department
of Chemistry and Material Engineering, Faculty of Engineering, Shinshu University, Wakasato 4-17-1, Nagano 380-8553, Japan
| | - Shoya Ozono
- Department
of Chemistry and Material Engineering, Faculty of Engineering, Shinshu University, Wakasato 4-17-1, Nagano 380-8553, Japan
| | - Masami Okamoto
- Department
of Chemistry and Material Engineering, Faculty of Engineering, Shinshu University, Wakasato 4-17-1, Nagano 380-8553, Japan
| | - Yohei Takeda
- Department
of Chemistry and Material Engineering, Faculty of Engineering, Shinshu University, Wakasato 4-17-1, Nagano 380-8553, Japan
| | - Hikari M. Minamisawa
- Technology Division,
Faculty of Engineering, Shinshu University, Wakasato 4-17-1, Nagano 380-8553, Japan
| | - Tetsuji Haeiwa
- Department
of Computer Science and Engineering, Faculty of Engineering, Shinshu University, 4-17-1 Wakasato, Nagano 380-8553, Japan
| | - Toshio Sakai
- Department
of Chemistry and Material Engineering, Faculty of Engineering, Shinshu University, Wakasato 4-17-1, Nagano 380-8553, Japan
| | - Shozi Mishima
- Department
of Chemistry and Material Engineering, Faculty of Engineering, Shinshu University, Wakasato 4-17-1, Nagano 380-8553, Japan
| |
Collapse
|
219
|
Lai HY, Huang CW, Chiu CH, Wang CW, Chen JY, Huang YT, Lu KC, Wu WW. Real time observation of the formation of hollow nanostructures through solid state reactions. Anal Chem 2014; 86:4348-53. [PMID: 24670115 DOI: 10.1021/ac500134u] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
We demonstrate the formation of hollow nickel germanide nanostructures of Ni-Ge core-shell nanoparticles by solid state reactions. The structural evolutions of nickel germanide hollow nanostructures have been investigated in real-time ultrahigh vacuum transmission electron microscopy (UHV-TEM). Annealed above 450 °C, the nonequilibrium interdiffusion of core and shell species occurred at the interface; thus, Ni germanide hollow nanostructures were formed by solid state reactions involving the Kirkendall effect. In addition, the different hollow nanostructures formed from different core diameters of Ni-Ge core-shell nanoparticles have been studied. Also, we propose the mechanism with effects of the size and annealing duration on the solid state reactions based on the Kirkendall effect.
Collapse
Affiliation(s)
- Huang-Yen Lai
- Department of Materials Science and Engineering, National Chiao Tung University , No. 1001, University Rd, East Dist., Hsinchu City, 300, Taiwan
| | | | | | | | | | | | | | | |
Collapse
|
220
|
Tang Z, Zhou Y, Sun H, Li D, Zhou S. Biodegradable magnetic calcium phosphate nanoformulation for cancer therapy. Eur J Pharm Biopharm 2014; 87:90-100. [DOI: 10.1016/j.ejpb.2014.01.003] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2013] [Revised: 12/26/2013] [Accepted: 01/17/2014] [Indexed: 12/01/2022]
|
221
|
Arcos D, Boccaccini A, Bohner M, Díez-Pérez A, Epple M, Gómez-Barrena E, Herrera A, Planell J, Rodríguez-Mañas L, Vallet-Regí M. The relevance of biomaterials to the prevention and treatment of osteoporosis. Acta Biomater 2014; 10:1793-805. [PMID: 24418434 DOI: 10.1016/j.actbio.2014.01.004] [Citation(s) in RCA: 82] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2013] [Revised: 12/24/2013] [Accepted: 01/03/2014] [Indexed: 02/08/2023]
Abstract
Osteoporosis is a worldwide disease with a very high prevalence in humans older than 50. The main clinical consequences are bone fractures, which often lead to patient disability or even death. A number of commercial biomaterials are currently used to treat osteoporotic bone fractures, but most of these have not been specifically designed for that purpose. Many drug- or cell-loaded biomaterials have been proposed in research laboratories, but very few have received approval for commercial use. In order to analyze this scenario and propose alternatives to overcome it, the Spanish and European Network of Excellence for the Prevention and Treatment of Osteoporotic Fractures, "Ageing", was created. This network integrates three communities, e.g. clinicians, materials scientists and industrial advisors, tackling the same problem from three different points of view. Keeping in mind the premise "living longer, living better", this commentary is the result of the thoughts, proposals and conclusions obtained after one year working in the framework of this network.
Collapse
|
222
|
Stubinitzky C, Vilaivan T, Wagenknecht HA. The base discriminating potential of pyrrolidinyl PNA demonstrated by magnetic Fe(x)O(y) particles. Org Biomol Chem 2014; 12:3586-9. [PMID: 24777755 DOI: 10.1039/c4ob00487f] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Pyrrolidinyl PNA was immobilized on Fe(x)O(y) magnetic particles and was able to capture and thereby discriminate single base alterations in DNA counterstrands better than DNA. The selectivities of matched vs. mismatched oligonucleotides measured by the absorption differences were up to 10-12 which are remarkable values for linear probes.
Collapse
Affiliation(s)
- Claudia Stubinitzky
- Institute of Organic Chemistry, Karlsruhe Institute of Technology (KIT), Fritz-Haber-Weg 6, 76131 Karlsruhe, Germany.
| | | | | |
Collapse
|
223
|
Li K, Feng L, Shen J, Zhang Q, Liu Z, Lee ST, Liu J. Patterned substrates of nano-graphene oxide mediating highly localized and efficient gene delivery. ACS APPLIED MATERIALS & INTERFACES 2014; 6:5900-5907. [PMID: 24673573 DOI: 10.1021/am5008134] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
A facile approach was developed to fabricate patterned substrates of nano-graphene oxide, demonstrating highly localized and efficient gene delivery to multiple cell lines in a substrate-mediated manner. The GO substrates served as a valid platform to preconcentrate PEI/pDNA complexes and maintain their gradual releasing for a relatively long period of time. Our approach allowed successful gene delivery in selected groups of cells on the stripe-patterned GO substrates, without transfecting their neighbor cells directly cultured on glass. These GO substrates exhibited excellent biocompatibility and enabled effective gene transfection for various cell lines including stem cells, thus promising important applications in stem cell research and tissue engineering.
Collapse
Affiliation(s)
- Kunyang Li
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University , Suzhou, Jiangsu 215123, People's Republic of China
| | | | | | | | | | | | | |
Collapse
|
224
|
|
225
|
Zhao X, Liu P. pH-Sensitive Fluorescent Hepatocyte-Targeting Multilayer Polyelectrolyte Hollow Microspheres as a Smart Drug Delivery System. Mol Pharm 2014; 11:1599-610. [DOI: 10.1021/mp400774v] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Xubo Zhao
- State Key Laboratory
of Applied
Organic Chemistry and Institute of Polymer Science and Engineering,
College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, China
| | - Peng Liu
- State Key Laboratory
of Applied
Organic Chemistry and Institute of Polymer Science and Engineering,
College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, China
| |
Collapse
|
226
|
Gold nanoparticles for nucleic acid delivery. Mol Ther 2014; 22:1075-1083. [PMID: 24599278 DOI: 10.1038/mt.2014.30] [Citation(s) in RCA: 327] [Impact Index Per Article: 32.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2013] [Accepted: 02/21/2014] [Indexed: 12/11/2022] Open
Abstract
Gold nanoparticles provide an attractive and applicable scaffold for delivery of nucleic acids. In this review, we focus on the use of covalent and noncovalent gold nanoparticle conjugates for applications in gene delivery and RNA-interference technologies. We also discuss challenges in nucleic acid delivery, including endosomal entrapment/escape and active delivery/presentation of nucleic acids in the cell.
Collapse
|
227
|
Tung JC, Paige SL, Ratner BD, Murry CE, Giachelli CM. Engineered biomaterials control differentiation and proliferation of human-embryonic-stem-cell-derived cardiomyocytes via timed Notch activation. Stem Cell Reports 2014; 2:271-81. [PMID: 24672751 PMCID: PMC3964284 DOI: 10.1016/j.stemcr.2014.01.011] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2013] [Revised: 01/20/2014] [Accepted: 01/23/2014] [Indexed: 12/31/2022] Open
Abstract
For cell-based treatments of myocardial infarction, a better understanding of key developmental signaling pathways and more robust techniques for producing cardiomyocytes are required. Manipulation of Notch signaling has promise as it plays an important role during cardiovascular development, but previous studies presented conflicting results that Notch activation both positively and negatively regulates cardiogenesis. We developed surface- and microparticle-based Notch-signaling biomaterials that function in a time-specific activation-tunable manner, enabling precise investigation of Notch activation at specific developmental stages. Using our technologies, a biphasic effect of Notch activation on cardiac differentiation was found: early activation in undifferentiated human embryonic stem cells (hESCs) promotes ectodermal differentiation, activation in specified cardiovascular progenitor cells increases cardiac differentiation. Signaling also induces cardiomyocyte proliferation, and repeated doses of Notch-signaling microparticles further enhance cardiomyocyte population size. These results highlight the diverse effects of Notch activation during cardiac development and provide approaches for generating large quantities of cardiomyocytes.
Collapse
Affiliation(s)
- Jason C Tung
- Department of Bioengineering, University of Washington, Seattle, WA 98195, USA
| | - Sharon L Paige
- Department of Pathology, University of Washington, Seattle, WA 98195, USA ; Center for Cardiovascular Biology, Institute for Stem Cell and Regenerative Medicine, University of Washington, Seattle, WA 98109, USA
| | - Buddy D Ratner
- Department of Bioengineering, University of Washington, Seattle, WA 98195, USA
| | - Charles E Murry
- Department of Bioengineering, University of Washington, Seattle, WA 98195, USA ; Department of Pathology, University of Washington, Seattle, WA 98195, USA ; Department of Medicine/Cardiology, University of Washington, Seattle, WA 98195, USA ; Center for Cardiovascular Biology, Institute for Stem Cell and Regenerative Medicine, University of Washington, Seattle, WA 98109, USA
| | - Cecilia M Giachelli
- Department of Bioengineering, University of Washington, Seattle, WA 98195, USA
| |
Collapse
|
228
|
Cao-Milán R, Liz-Marzán LM. Gold nanoparticle conjugates: recent advances toward clinical applications. Expert Opin Drug Deliv 2014; 11:741-52. [DOI: 10.1517/17425247.2014.891582] [Citation(s) in RCA: 114] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
|
229
|
Jin L, Zeng X, Liu M, Deng Y, He N. Current progress in gene delivery technology based on chemical methods and nano-carriers. Am J Cancer Res 2014; 4:240-55. [PMID: 24505233 PMCID: PMC3915088 DOI: 10.7150/thno.6914] [Citation(s) in RCA: 248] [Impact Index Per Article: 24.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2013] [Accepted: 11/16/2013] [Indexed: 12/21/2022] Open
Abstract
Gene transfer methods are promising in the field of gene therapy. Current methods for gene transfer include three major groups: viral, physical and chemical methods. This review mainly summarizes development of several types of chemical methods for gene transfer in vitro and in vivo by means of nano-carriers like; calcium phosphates, lipids, and cationic polymers including chitosan, polyethylenimine, polyamidoamine dendrimers, and poly(lactide-co-glycolide). This review also briefly introduces applications of these chemical methods for gene delivery.
Collapse
|
230
|
Peng E, Ding J, Xue JM. Concentration-dependent magnetic hyperthermic response of manganese ferrite-loaded ultrasmall graphene oxide nanocomposites. NEW J CHEM 2014. [DOI: 10.1039/c3nj01555f] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The SAR values of the magnetic nanocomposites increased by approximately two-fold when the concentration was reduced by a factor of 3.
Collapse
Affiliation(s)
- Erwin Peng
- Department of Materials Science and Engineering
- Faculty of Engineering
- National University of Singapore
- , Singapore 117576
| | - Jun Ding
- Department of Materials Science and Engineering
- Faculty of Engineering
- National University of Singapore
- , Singapore 117576
| | - Jun Min Xue
- Department of Materials Science and Engineering
- Faculty of Engineering
- National University of Singapore
- , Singapore 117576
| |
Collapse
|
231
|
Butturini E, Dolcet P, Casarin M, Speghini A, Pedroni M, Benetti F, Motta A, Badocco D, Pastore P, Diodati S, Pandolfo L, Gross S. Simple, common but functional: biocompatible and luminescent rare-earth doped magnesium and calcium hydroxides from miniemulsion. J Mater Chem B 2014; 2:6639-6651. [DOI: 10.1039/c4tb01206b] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Highly luminescent Ca(OH)2:Ln and Mg(OH)2:Ln (Ln = EuIII, SmIII, TbIII, Mg(Ca)/Ln = 20 : 1) nanostructures were obtained in inverse miniemulsion by exploiting the droplets to spatially confine the hydroxide precipitation in basic environment.
Collapse
Affiliation(s)
- Erika Butturini
- Dipartimento di Scienze Chimiche
- Università degli Studi di Padova
- Padova, Italy
- Istituto per l’Energetica e le Interfasi
- IENI-CNR and INSTM
| | - Paolo Dolcet
- Dipartimento di Scienze Chimiche
- Università degli Studi di Padova
- Padova, Italy
- Istituto per l’Energetica e le Interfasi
- IENI-CNR and INSTM
| | - Maurizio Casarin
- Dipartimento di Scienze Chimiche
- Università degli Studi di Padova
- Padova, Italy
- Istituto per l’Energetica e le Interfasi
- IENI-CNR and INSTM
| | - Adolfo Speghini
- Dipartimento di Biotecnologie
- Università degli Studi di Verona and INSTM
- UdR Verona
- 37314 Verona, Italy
| | - Marco Pedroni
- Dipartimento di Biotecnologie
- Università degli Studi di Verona and INSTM
- UdR Verona
- 37314 Verona, Italy
| | - Filippo Benetti
- University of Trento
- Department of Industrial Engineering and BIOtech Research Center
- Trento, Italy
- European Institute of Excellence on Tissue Engineering and Regenerative Medicine
- Trento, Italy
| | - Antonella Motta
- University of Trento
- Department of Industrial Engineering and BIOtech Research Center
- Trento, Italy
- European Institute of Excellence on Tissue Engineering and Regenerative Medicine
- Trento, Italy
| | - Denis Badocco
- Dipartimento di Scienze Chimiche
- Università degli Studi di Padova
- Padova, Italy
| | - Paolo Pastore
- Dipartimento di Scienze Chimiche
- Università degli Studi di Padova
- Padova, Italy
| | - Stefano Diodati
- Dipartimento di Scienze Chimiche
- Università degli Studi di Padova
- Padova, Italy
- Istituto per l’Energetica e le Interfasi
- IENI-CNR and INSTM
| | - Luciano Pandolfo
- Dipartimento di Scienze Chimiche
- Università degli Studi di Padova
- Padova, Italy
| | - Silvia Gross
- Dipartimento di Scienze Chimiche
- Università degli Studi di Padova
- Padova, Italy
- Istituto per l’Energetica e le Interfasi
- IENI-CNR and INSTM
| |
Collapse
|
232
|
Wang H, Chen W, Xie H, Wei X, Yin S, Zhou L, Xu X, Zheng S. Biocompatible, chimeric peptide-condensed supramolecular nanoparticles for tumor cell-specific siRNA delivery and gene silencing. Chem Commun (Camb) 2014; 50:7806-9. [PMID: 24903477 DOI: 10.1039/c4cc01061b] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
A practical and tumor cell-specific siRNA delivery system was developedviasingle-step self-assembly of an arginine-rich chimeric peptide with siRNA.
Collapse
Affiliation(s)
- Hangxiang Wang
- First Affiliated Hospital
- School of Medicine
- Zhejiang University
- Hangzhou, PR China
| | - Wei Chen
- Zhejiang University School of Medicine
- Hangzhou, PR China
| | - Haiyang Xie
- First Affiliated Hospital
- School of Medicine
- Zhejiang University
- Hangzhou, PR China
| | - Xuyong Wei
- First Affiliated Hospital
- School of Medicine
- Zhejiang University
- Hangzhou, PR China
| | - Shengyong Yin
- First Affiliated Hospital
- School of Medicine
- Zhejiang University
- Hangzhou, PR China
| | - Lin Zhou
- First Affiliated Hospital
- School of Medicine
- Zhejiang University
- Hangzhou, PR China
| | - Xiao Xu
- First Affiliated Hospital
- School of Medicine
- Zhejiang University
- Hangzhou, PR China
| | - Shusen Zheng
- First Affiliated Hospital
- School of Medicine
- Zhejiang University
- Hangzhou, PR China
| |
Collapse
|
233
|
Kobayashi K, Niikura K, Takeuchi C, Sekiguchi S, Ninomiya T, Hagiwara K, Mitomo H, Ito Y, Osada Y, Ijiro K. Enhanced cellular uptake of amphiphilic gold nanoparticles with ester functionality. Chem Commun (Camb) 2014; 50:1265-7. [DOI: 10.1039/c3cc48532c] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
Gold nanoparticles (AuNPs) coated with ester-headed or ether-headed PEG ligands were synthesized.
Collapse
Affiliation(s)
- Kenya Kobayashi
- Nano Medical Engineering Laboratory
- RIKEN
- Saitama 351-0198, Japan
| | - Kenichi Niikura
- Research Institute for Electronic Science (RIES)
- Hokkaido University
- Sapporo 001-0021, Japan
| | - Chie Takeuchi
- Research Institute for Electronic Science (RIES)
- Hokkaido University
- Sapporo 001-0021, Japan
| | - Shota Sekiguchi
- Graduate School of Chemical Sciences and Engineering
- Hokkaido University
- Sapporo 060-8628, Japan
| | - Takafumi Ninomiya
- Department of Anatomy 1
- Sapporo Medical University School of Medicine
- Sapporo 060-8556, Japan
| | - Kyoji Hagiwara
- Nano Medical Engineering Laboratory
- RIKEN
- Saitama 351-0198, Japan
| | - Hideyuki Mitomo
- Research Institute for Electronic Science (RIES)
- Hokkaido University
- Sapporo 001-0021, Japan
| | - Yoshihiro Ito
- Nano Medical Engineering Laboratory
- RIKEN
- Saitama 351-0198, Japan
| | - Yoshihito Osada
- Nano Medical Engineering Laboratory
- RIKEN
- Saitama 351-0198, Japan
| | - Kuniharu Ijiro
- Research Institute for Electronic Science (RIES)
- Hokkaido University
- Sapporo 001-0021, Japan
| |
Collapse
|
234
|
Liu Z, Xiao Y, Chen W, Wang Y, Wang B, Wang G, Xu X, Tang R. Calcium phosphate nanoparticles primarily induce cell necrosis through lysosomal rupture: the origination of material cytotoxicity. J Mater Chem B 2014; 2:3480-3489. [DOI: 10.1039/c4tb00056k] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
|
235
|
Huang WY, Davies GL, Davis JJ. Engineering cytochrome-modified silica nanoparticles to induce programmed cell death. Chemistry 2013; 19:17891-8. [PMID: 24249039 PMCID: PMC4454278 DOI: 10.1002/chem.201303239] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2013] [Indexed: 11/05/2022]
Abstract
A low native membrane permeability and ineffective access to the cellular cytosol, together with aggressive proteolytic degradation, often severely hampers the practical application of any therapeutic protein or antibody. Through engineering the charging profile of mesoporous silica nanoparticles, cellular uptake and subsequent subcellular distribution can be controlled. We show herein that programmed cell death can subsequently be induced across a population of cancer cells with remarkable efficacy on conjugating a specific caspase-cascade-activating cytochrome to such cytosol-accessing particles.
Collapse
Affiliation(s)
- Wen-Yen Huang
- Department of Chemistry, University of Oxford, South Parks Road, Oxford, OX1 3QZ (UK)
| | - Gemma-Louise Davies
- Department of Chemistry, University of Oxford, South Parks Road, Oxford, OX1 3QZ (UK)
| | - Jason J. Davis
- Department of Chemistry, University of Oxford, South Parks Road, Oxford, OX1 3QZ (UK)
| |
Collapse
|
236
|
Zhang MZ, Yu Y, Yu RN, Wan M, Zhang RY, Zhao YD. Tracking the down-regulation of folate receptor-α in cancer cells through target specific delivery of quantum dots coupled with antisense oligonucleotide and targeted peptide. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2013; 9:4183-4193. [PMID: 23828664 DOI: 10.1002/smll.201300994] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/29/2013] [Indexed: 06/02/2023]
Abstract
Based on the multivalent binding capability of streptavidin (SA) to biotin, a multifunctional quantum dot probe (QD-(AS-ODN+p160)) coupled with antisense oligonucleotide (AS-ODN) and peptide p160 is designed for real-time tracking of targeted delivery of AS-ODN and regulation of folate receptor-α (hFR-α) in MCF-7 breast cancer cells. Fluorescence spectra, capillary electrophoresis (CE) and dynamic light scattering (DLS) are used to characterize the conjugation of AS-ODN and p160 with quantum dots (QDs), DLS results confirm the well stability of the probe in aqueous media. Confocal imaging and quantitative flow cytometry show that QD-(AS-ODN+p160) is able to specifically target human breast cancer MCF-7 cells. Low temperature and ATP depletion treatments reveal the cellular uptake of QD-(AS-ODN+p160) is energy-dependent, and the effects of inhibition agents and co-localization imaging further confirm the endocytic pathway is mainly receptor-mediated. Transmission electron microscopy (TEM) shows the intracellular delivery and endosomal escape of QD probe along with incubation time extended. Two transfection concentrations of QD probe (10 nM and 50 nM) below half inhibitory concentration (IC50 ) value are chosen according to MTT assay. Real-time PCR shows at these two concentration cases the relative mRNA expression levels of hFR-α reduce to 72.5 ± 3.9% and 17.6 ± 1.0%, respectively. However, western blot and quantitative ELISA analysis show the expression level of hFR-α protein has a significant decrease only at 50 nM, indicating that gene silence is concentration-dependent. These results demonstrate that the QD-(AS-ODN+p160) probe not only achieves gene silence in a cell-specific manner but also achieves real-time tracking during AS-ODN intracellular delivery.
Collapse
Affiliation(s)
- Ming-Zhen Zhang
- Britton Chance Center for Biomedical Photonics at, Wuhan National Laboratory for Optoelectronics-Hubei, Bioinformatics & Molecular Imaging Key Laboratory, Department of Biomedical Engineering, College of Life Science and Technology, Huazhong University of Science and Technology Wuhan 430074, PR China
| | | | | | | | | | | |
Collapse
|
237
|
Baeza A, Arcos D, Vallet-Regí M. Thermoseeds for interstitial magnetic hyperthermia: from bioceramics to nanoparticles. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2013; 25:484003. [PMID: 24200980 DOI: 10.1088/0953-8984/25/48/484003] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
The development of magnetic materials for interstitial hyperthermia treatment of cancer is an ever evolving research field which provides new alternatives to antitumoral therapies. The development of biocompatible magnetic materials has resulted in new biomaterials with multifunctional properties, which are able to adapt to the complex scenario of tumoral processes. Once implanted or injected in the body, magnetic materials can behave as thermoseeds under the effect of AC magnetic fields. Magnetic bioceramics aimed to treat bone tumors and magnetic nanoparticles are among the most studied thermoseeds, and supply different solutions for the different scenarios in cancerous processes. This paper reviews some of the biomaterials used for bone cancer treatment and skeletal reinforcing, as well as the more complex topic of magnetic nanoparticles for intracellular targeting and hyperthermia.
Collapse
|
238
|
Enhanced efficiency of P-element mediated transgenesis in Drosophila: Microinjection of DNA complexed with nanomaterial. Sci Rep 2013; 3:3408. [PMID: 24296454 PMCID: PMC3847702 DOI: 10.1038/srep03408] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2013] [Accepted: 11/12/2013] [Indexed: 01/23/2023] Open
Abstract
The efficiency of genetic transformation technology to generate stable transgenics depends upon the successful delivery of plasmid DNA in embryonic cells. The available gene vectors facilitate efficient plasmid DNA delivery to the cellular milieu but are exposed to nuclease degradation. Recent in vitro studies suggest encapsulation of plasmid DNA with nanomaterial(s) for better protection against nucleases. Therefore, in this study, we tested if complexing of free plasmid DNA with linear polyethylenimine (LPEI, 25 kDa) based nanoparticle (LPN) enhances the efficiency of transformation (transgenesis) by using Drosophila based germ-line transformation technology. Here, we show that the LPN-DNA complex not only enhances the efficiency of this transgenic technology at a DNA concentration of 0.04 μg/μl but also reduces the DNA quantity required to generate transgenics by ten folds. This approach has potential applications for other types of transgenesis and nucleic acid injection methods in Drosophila as well as other popular genetic model systems.
Collapse
|
239
|
Huang X, Dong X, Li X, Meng X, Zhang D, Liu C. Metal–polybenzimidazole complexes as a nonviral gene carrier: Effects of the DNA affinity on gene delivery. J Inorg Biochem 2013; 129:102-11. [DOI: 10.1016/j.jinorgbio.2013.09.009] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2013] [Revised: 09/06/2013] [Accepted: 09/10/2013] [Indexed: 10/26/2022]
|
240
|
Sohn JH, Cha HG, Kim CW, Kim DK, Kang YS. Fabrication of hollow metal oxide nanocrystals by etching cuprous oxide with metal(II) ions: approach to the essential driving force. NANOSCALE 2013; 5:11227-11233. [PMID: 24084833 DOI: 10.1039/c3nr03626j] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Hollow metal oxide nanocrystals were prepared by etching cuprous oxide with metal ions and were applied as photoelectrodes. As a hard template, polyvinylpyrrolidone stabilized cuprous oxide (PVP-Cu2O) and non-stabilized cuprous oxide (nPVP-Cu2O) were synthesized by a precipitation method. Hollow iron oxide and cobalt oxide nanocrystals with a truncated octahedral morphology were fabricated by an etching reaction with transition metal(II) ions (Fe(2+) or Co(2+)). In the etching reaction process, a cationic exchange reaction occurs between the divalent metal ion and Cu(+) due to the higher Lewis acidity. Facet selective etching of cuprous oxide has been observed during the ionic exchange reaction of Cu(+) and O(2-) ions in PVP-Cu2O complexes with transition metal(II) ions (Fe(2+) or Co(2+)) at the surface of a (110) facet. Amorphous states of hollow metal oxide products were annealed to form α-Fe2O3 (hematite) and Co3O4 and their crystal structure was examined with X-ray diffraction and HR-TEM. The optical absorption behavior of semiconductor nanocrystals was measured with UV-vis spectroscopy to define band gap energy. The hollow hematite structure has a 2.08 eV band gap and Co3O4 (Co(II,III) oxide) has a 1.80 eV indirect band gap. Using these hollow nanocrystals, a metal oxide monolayer film was fabricated with a secondary growth approach and was studied for its photocatalytic properties.
Collapse
Affiliation(s)
- Jong Hwa Sohn
- Korea Center for Artificial Photosynthesis, Department of Chemistry, Sogang University, Seoul, 121-742, Republic of Korea.
| | | | | | | | | |
Collapse
|
241
|
Takeshita T, Matsuura Y, Arakawa S, Okamoto M. Biomineralization of hydroxyapatite on DNA molecules in SBF: morphological features and computer simulation. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2013; 29:11975-11981. [PMID: 23980633 DOI: 10.1021/la402589j] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
The hydroxyapatite (HA) formation on the DNA molecules in SBF was examined. After immersion for four weeks in SBF at 36.5 °C, the HA crystallites of ~1-14 μm in diameter grew on the surface of DNA molecules. Various morphologies were successfully observed through scanning electron microscopy analysis. The Ca/P mol ratio (1.1-1.5) in HA was estimated by energy dispersive X-ray analysis. Original peaks of both of DNA and HA were characterized by Fourier transform infrared spectroscopy. The molecular orbital computer simulation has been used to probe the interaction of DNA with two charge-balancing ions, i.e., CaOH(+) and CaH2PO4(+). The adsorption enthalpy of the two ions on ds-DNA and/or ss-DNA having large negative value (~ -60 kcal/mol per charge-balancing ion) was the evidence for the interface in mineralization of HA in SBF.
Collapse
Affiliation(s)
- Takayuki Takeshita
- Advanced Polymeric Nanostructured Materials Engineering, Graduate School of Engineering, Toyota Technological Institute , 2-12-1 Hisakata, Tempaku, Nagoya 468 8511, Japan
| | | | | | | |
Collapse
|
242
|
Zhou T, Llizo A, Wang C, Xu G, Yang Y. Nanostructure-induced DNA condensation. NANOSCALE 2013; 5:8288-8306. [PMID: 23838744 DOI: 10.1039/c3nr01630g] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
The control of the DNA condensation process is essential for compaction of DNA in chromatin, as well as for biological applications such as nonviral gene therapy. This review endeavours to reflect the progress of investigations on DNA condensation effects of nanostructure-based condensing agents (such as nanoparticles, nanotubes, cationic polymer and peptide agents) observed by using atomic force microscopy (AFM) and other techniques. The environmental effects on structural characteristics of nanostructure-induced DNA condensates are also discussed.
Collapse
Affiliation(s)
- Ting Zhou
- National Center for Nanoscience and Technology (NCNST), Beijing 100190, PR China
| | | | | | | | | |
Collapse
|
243
|
Yang Y, Velmurugan B, Liu X, Xing B. NIR photoresponsive crosslinked upconverting nanocarriers toward selective intracellular drug release. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2013; 9:2937-2944. [PMID: 23554151 DOI: 10.1002/smll.201201765] [Citation(s) in RCA: 122] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/24/2012] [Indexed: 06/02/2023]
Abstract
An NIR-responsive mesoporous silica coated upconverting nanoparticle (UCNP) conjugate is developed for controllable drug delivery and fluorescence imaging in living cells. In this work, antitumor drug doxorubicin (Dox) molecules are encapsulated within cross-linked photocaged mesoporous silica coated UCNPs. Upon 980 nm light irradiation, Dox could be selectively released through the photocleavage of theo-nitrobenzyl (NB) caged linker by the converted UV emission from UCNPs. This NIR light-responsive nanoparticle conjugate demonstrates high efficiency for the controlled release of the drug in cancer cells. Upon functionalization of the nanocarrier with folic acid (FA), this photocaged FA-conjugated silica-UCNP nanocarrier will also allow targeted intracellular drug delivery and selective fluorescence imaging towards the cell lines with high level expression of folate receptor (FR).
Collapse
Affiliation(s)
- Yanmei Yang
- Division of Chemistry & Biological Chemistry, School of Physical & Mathematical Sciences, Nanyang Technological University, 637371, Singapore
| | | | | | | |
Collapse
|
244
|
Ding HM, Ma YQ. Design maps for cellular uptake of gene nanovectors by computer simulation. Biomaterials 2013; 34:8401-7. [PMID: 23891080 DOI: 10.1016/j.biomaterials.2013.06.067] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2013] [Accepted: 06/28/2013] [Indexed: 12/21/2022]
Abstract
Understanding how nanovectors transport DNA molecules through cell membranes is of great importance in gene therapy. In this paper, we systematically investigate the mechanism of cellular uptake of cationic polymeric nanovectors containing DNA molecules through dissipative particle dynamics simulations. Our results show that the property of polyelectrolyte chains grafted to nanovector and DNA molecules can have important impacts on the endocytosis. Interestingly, it is found that the nanovector can be fully taken up with proper number of DNA molecules on its surface. On the contrary, in the absence of DNA it may become harder to be totally engulfed. Since the adsorption number of DNA is related to external pH, the cellular uptake could exhibit pH-responsive behavior. Further, we also provide insights into the comparison of uptake behaviors between cancer and normal cells, and importantly, we find that the enhanced uptake of gene nanovectors may be an inherent property of cancer cells. The present study may give some significant suggestions on future nanovector design for gene delivery.
Collapse
Affiliation(s)
- Hong-ming Ding
- National Laboratory of Solid State Microstructures and Department of Physics, Nanjing University, Nanjing 210093, China
| | | |
Collapse
|
245
|
Cui L, Song Y, Ke G, Guan Z, Zhang H, Lin Y, Huang Y, Zhu Z, Yang CJ. Graphene oxide protected nucleic acid probes for bioanalysis and biomedicine. Chemistry 2013; 19:10442-51. [PMID: 23839798 DOI: 10.1002/chem.201301292] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Recently, the binding ability of DNA on GO and resulting nuclease resistance have attracted increasing attention, leading to new applications both in vivo and in vitro. In vivo, nucleic acids absorbed on GO can be effectively protected from enzymatic degradation and biological interference in complicated samples, making it useful for targeted delivery, gene regulation, intracellular detection and imaging with high uptake efficiencies, high intracellular stability, and very low toxicity. In vitro, the adsorption of ssDNA on GO surface and desorption of dsDNA or well-folded ssDNA from GO surface result in the protection and deprotection of DNA from nucleic digestion, respectively, which has led to target-triggered cyclic enzymatic amplification methods (CEAM) for amplified detection of analytes with sensitivity 2-3 orders of magnitude higher than that of 1:1 binding strategies. This Concept article explores some of the latest developments in this field.
Collapse
Affiliation(s)
- Liang Cui
- State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | | | | | | | | | | | | | | | | |
Collapse
|
246
|
Tao Y, Li Z, Ju E, Ren J, Qu X. Polycations-functionalized water-soluble gold nanoclusters: a potential platform for simultaneous enhanced gene delivery and cell imaging. NANOSCALE 2013; 5:6154-60. [PMID: 23727891 DOI: 10.1039/c3nr01326j] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
Noble metal nanoclusters have emerged as a fascinating area of widespread interest in nanomaterials. Herein, we report the synthesis of the PEI-templated gold nanoclusters (PEI-AuNCs) as an efficient carrier for gene delivery. The PEI-AuNCs integrate the advantages of PEI and AuNCs: the presence of AuNCs can effectively decrease the cytotoxicity of PEI, making it possible to apply them in biological systems, while the cationic polymer layer PEI with positive charges is essential for enhanced gene transfection efficiency. In addition, with excellent photoluminescent properties, the AuNCs also endow our system with the versatility of fluorescent imaging, indicating a great potential as an ideal fluorescent probe to track the transfection behavior. Our studies provide strong evidence that the PEI-AuNCs can be utilized as efficient gene delivery agents.
Collapse
Affiliation(s)
- Yu Tao
- State Key laboratory of Rare Earth Resources Utilization and Laboratory of Chemical Biology, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, PR China
| | | | | | | | | |
Collapse
|
247
|
Sokolova V, Kozlova D, Knuschke T, Buer J, Westendorf AM, Epple M. Mechanism of the uptake of cationic and anionic calcium phosphate nanoparticles by cells. Acta Biomater 2013; 9:7527-35. [PMID: 23454056 DOI: 10.1016/j.actbio.2013.02.034] [Citation(s) in RCA: 90] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2012] [Revised: 02/15/2013] [Accepted: 02/19/2013] [Indexed: 12/24/2022]
Abstract
The uptake of calcium phosphate nanoparticles (diameter 120nm) with different charge by HeLa cells was studied by flow cytometry. The amount of uptaken nanoparticles increased with increasing concentration of nanoparticles in the cell culture medium. Several inhibitors of endocytosis and macropinocytosis were applied to elucidate the uptake mechanism of nanoparticles into HeLa cells: wortmannin, LY294002, nocodazole, chlorpromazine and nystatin. Wortmannin and LY294002 strongly reduced the uptake of anionic nanoparticles, which indicates macropinocytosis as uptake mechanism. For cationic nanoparticles, the uptake was reduced to a lesser extent, indicating a different uptake mechanism. The localization of nanoparticles inside the cells was investigated by conjugating them with the pH-sensitive dye SNARF-1. The nanoparticles were localized in lysosomes after 3h of incubation.
Collapse
|
248
|
Castleberry S, Wang M, Hammond PT. Nanolayered siRNA dressing for sustained localized knockdown. ACS NANO 2013; 7:5251-61. [PMID: 23672676 PMCID: PMC3873513 DOI: 10.1021/nn401011n] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
The success of RNA interference (RNAi) in medicine relies on the development of technology capable of successfully delivering it to tissues of interest. Significant research has focused on the difficult task of systemic delivery of RNAi; however its local delivery could be a more easily realized approach. Localized delivery is of particular interest for many medical applications, including the treatment of localized diseases, the modulation of cellular response to implants or tissue engineering constructs, and the management of wound healing and regenerative medicine. In this work we present an ultrathin electrostatically assembled coating for localized and sustained delivery of short interfering RNA (siRNA). This film was applied to a commercially available woven nylon dressing commonly used for surgical applications and was demonstrated to sustain significant knockdown of protein expression in multiple cell types for more than one week in vitro. Significantly, this coating can be easily applied to a medically relevant device and requires no externally delivered transfection agents for effective delivery of siRNA. These results present promising opportunities for the localized administration of RNAi.
Collapse
Affiliation(s)
- Steven Castleberry
- Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | | | | |
Collapse
|
249
|
Tian H, Chen J, Chen X. Nanoparticles for gene delivery. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2013; 9:2034-2044. [PMID: 23630123 DOI: 10.1002/smll.201202485] [Citation(s) in RCA: 98] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/09/2012] [Revised: 12/21/2012] [Indexed: 05/27/2023]
Abstract
Nanocarriers are a new type of nonviral gene carriers, many of which have demonstrated a broad range of pharmacological and biological properties, such as being biodegradable in the body, stimulus-responsive towards the surrounding environment, and an ability to specifically targeting certain disease sites. By summarizing some main types of nanocarriers, this Concept considers the current status and possible future directions of the potential clinical applications of multifunctional nanocarriers, with primary attention on the combination of such properties as biodegradability, targetability, transfection ability, and stimuli sensitivity.
Collapse
Affiliation(s)
- Huayu Tian
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun 130022, China
| | | | | |
Collapse
|
250
|
Oligonucleotide optical switches for intracellular sensing. Anal Bioanal Chem 2013; 405:6181-96. [PMID: 23793395 DOI: 10.1007/s00216-013-7086-8] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2013] [Revised: 05/16/2013] [Accepted: 05/17/2013] [Indexed: 12/16/2022]
Abstract
Fluorescence imaging coupled with nanotechnology is making possible the development of powerful tools in the biological field for applications such as cellular imaging and intracellular messenger RNA monitoring and detection. The delivery of fluorescent probes into cells and tissues is currently receiving growing interest because such molecules, often coupled to nanodimensional materials, can conveniently allow the preparation of small tools to spy on cellular mechanisms with high specificity and sensitivity. The purpose of this review is to provide an exhaustive overview of current research in oligonucleotide optical switches for intracellular sensing with a focus on the engineering methods adopted for these oligonucleotides and the more recent and fascinating techniques for their internalization into living cells. Oligonucleotide optical switches can be defined as specifically designed short nucleic acid molecules capable of turning on or modifying their light emission on molecular interaction with well-defined molecular targets. Molecular beacons, aptamer beacons, hybrid molecular probes, and simpler linear oligonucleotide switches are the most promising optical nanosensors proposed in recent years. The intracellular targets which have been considered for sensing are a plethora of messenger-RNA-expressing cellular proteins and enzymes, or, directly, proteins or small molecules in the case of sensing through aptamer-based switches. Engineering methods, including modification of the oligonucleotide itself with locked nucleic acids, peptide nucleic acids, or L-DNA nucleotides, have been proposed to enhance the stability of nucleases and to prevent false-negative and high background optical signals. Conventional delivery techniques are treated here together with more innovative methods based on the coupling of the switches with nano-objects.
Collapse
|