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Vorotnikov YA, Pozmogova TN, Solovieva AO, Miroshnichenko SM, Vorontsova EV, Shestopalova LV, Mironov YV, Shestopalov MA, Efremova OA. Luminescent silica mesoparticles for protein transduction. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2018; 96:530-538. [PMID: 30606563 DOI: 10.1016/j.msec.2018.11.056] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/25/2018] [Revised: 10/25/2018] [Accepted: 11/27/2018] [Indexed: 01/20/2023]
Abstract
Unlike silica nanoparticles, the potential of silica mesoparticles (SMPs) (i.e. particles of submicron size) for biological applications in particular the in vitro (let alone in vivo) cellular delivery of biological cargo has so far not been sufficiently studied. Here we examine the potential of luminescent (namely, octahedral molybdenum cluster doped) SMPs synthesised by a simple one-pot reaction for the labelling of cells and for protein transduction into larynx carcinoma (Hep-2) cells using GFP as a model protein. Our data demonstrates that the SMPs internalise into the cells within half an hour. This results in cells that detectably luminesce via conventional methods. In addition, the particles are non-toxic both in darkness and upon photo-irradiation. The SMPs were modified to allow their functionalisation by a protein, which then delivered the protein (GFP) efficiently into the cells. Thus, the luminescent SMPs offer a cheap and trackable alternative to existing materials for cellular internalisation of proteins, such as the HIV TAT protein and commercial protein delivery agents (e.g. Pierce™).
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Affiliation(s)
- Yuri A Vorotnikov
- Nikolaev Institute of Inorganic Chemistry SB RAS, 3 Acad. Lavrentiev Ave., 630090 Novosibirsk, Russian Federation; Scientific Institute of Clinical and Experimental Lymphology - branch of ICG SB RAS, 2 Timakova str., 630060 Novosibirsk, Russian Federation
| | - Tatiana N Pozmogova
- Scientific Institute of Clinical and Experimental Lymphology - branch of ICG SB RAS, 2 Timakova str., 630060 Novosibirsk, Russian Federation; Novosibirsk State University, 2 Pirogova str., 630090 Novosibirsk, Russian Federation
| | - Anastasiya O Solovieva
- Scientific Institute of Clinical and Experimental Lymphology - branch of ICG SB RAS, 2 Timakova str., 630060 Novosibirsk, Russian Federation; Federal Research Center of Fundamental and Translational Medicine, 2 Timakova str., 630117 Novosibirsk, Russian Federation
| | - Svetlana M Miroshnichenko
- Scientific Institute of Clinical and Experimental Lymphology - branch of ICG SB RAS, 2 Timakova str., 630060 Novosibirsk, Russian Federation; Federal Research Center of Fundamental and Translational Medicine, 2 Timakova str., 630117 Novosibirsk, Russian Federation
| | - Elena V Vorontsova
- Scientific Institute of Clinical and Experimental Lymphology - branch of ICG SB RAS, 2 Timakova str., 630060 Novosibirsk, Russian Federation; Federal Research Center of Fundamental and Translational Medicine, 2 Timakova str., 630117 Novosibirsk, Russian Federation
| | - Lidiya V Shestopalova
- Novosibirsk State University, 2 Pirogova str., 630090 Novosibirsk, Russian Federation
| | - Yuri V Mironov
- Nikolaev Institute of Inorganic Chemistry SB RAS, 3 Acad. Lavrentiev Ave., 630090 Novosibirsk, Russian Federation; Novosibirsk State University, 2 Pirogova str., 630090 Novosibirsk, Russian Federation
| | - Michael A Shestopalov
- Nikolaev Institute of Inorganic Chemistry SB RAS, 3 Acad. Lavrentiev Ave., 630090 Novosibirsk, Russian Federation; Scientific Institute of Clinical and Experimental Lymphology - branch of ICG SB RAS, 2 Timakova str., 630060 Novosibirsk, Russian Federation; Novosibirsk State University, 2 Pirogova str., 630090 Novosibirsk, Russian Federation; Federal Research Center of Fundamental and Translational Medicine, 2 Timakova str., 630117 Novosibirsk, Russian Federation.
| | - Olga A Efremova
- Scientific Institute of Clinical and Experimental Lymphology - branch of ICG SB RAS, 2 Timakova str., 630060 Novosibirsk, Russian Federation; Federal Research Center of Fundamental and Translational Medicine, 2 Timakova str., 630117 Novosibirsk, Russian Federation; School of Mathematics and Physical Sciences, University of Hull, Cottingham Road, HU6 7RX, Hull, UK.
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Farina NH, Zingiryan A, Vrolijk MA, Perrapato SD, Ades S, Stein GS, Lian JB, Landry CC. Nanoparticle-based targeted cancer strategies for non-invasive prostate cancer intervention. J Cell Physiol 2018; 233:6408-6417. [PMID: 29663383 DOI: 10.1002/jcp.26593] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2018] [Accepted: 03/09/2018] [Indexed: 01/07/2023]
Abstract
Prostate cancer is screened by testing circulating levels of the prostate-specific antigen (PSA) biomarker, monitoring changes over time, or a digital rectal exam. Abnormal results often lead to prostate biopsy. Prostate cancer positive patients are stratified into very low-risk, low-risk, intermediate-risk, and high-risk, based on clinical classification parameters, to assess therapy options. However, there remains a gap in our knowledge and a compelling need for improved risk stratification to inform clinical decisions and reduce both over-diagnosis and over-treatment. Further, current strategies for clinical intervention do not distinguish clinically aggressive prostate cancer from indolent disease. This mini-review takes advantage of a large number of functionally characterized microRNAs (miRNA), epigenetic regulators of prostate cancer, that define prostate cancer cell activity, tumor stage, and circulate as biomarkers to monitor disease progression. Nanoparticles provide an effective platform for targeted delivery of miRNA inhibitors or mimics specifically to prostate tumor cells to inhibit cancer progression. Several prostate-specific transmembrane proteins expressed at elevated levels in prostate tumors are under investigation for targeting therapeutic agents to prostate cancer cells. Given that prostate cancer progresses slowly, circulating miRNAs can be monitored to identify tumor progression in indolent disease, allowing identification of miRNAs for nanoparticle intervention before the crucial point of transition to aggressive disease. Here, we describe clinically significant and non-invasive intervention nanoparticle strategies being used in clinical trials for drug and nucleic acid delivery. The advantages of mesoporous silica-based nanoparticles and a number of candidate miRNAs for inhibition of prostate cancer are discussed.
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Affiliation(s)
- Nicholas H Farina
- Department of Biochemistry, Larner College of Medicine, University of Vermont, Burlington, Vermont.,UVM Cancer Center, Larner College of Medicine, University of Vermont, Burlington, Vermont
| | - Areg Zingiryan
- Department of Biochemistry, Larner College of Medicine, University of Vermont, Burlington, Vermont
| | - Michael A Vrolijk
- Department of Chemistry, College of Arts and Sciences, University of Vermont, Burlington, Vermont
| | - Scott D Perrapato
- UVM Cancer Center, Larner College of Medicine, University of Vermont, Burlington, Vermont.,Department of Surgery, Division of Urology, Larner College of Medicine, University of Vermont Medical Center, Burlington, Vermont
| | - Steven Ades
- UVM Cancer Center, Larner College of Medicine, University of Vermont, Burlington, Vermont.,Department of Medicine, Division of Hematology and Oncology, Larner College of Medicine, University of Vermont Medical Center, Burlington, Vermont
| | - Gary S Stein
- Department of Biochemistry, Larner College of Medicine, University of Vermont, Burlington, Vermont.,UVM Cancer Center, Larner College of Medicine, University of Vermont, Burlington, Vermont
| | - Jane B Lian
- Department of Biochemistry, Larner College of Medicine, University of Vermont, Burlington, Vermont.,UVM Cancer Center, Larner College of Medicine, University of Vermont, Burlington, Vermont
| | - Christopher C Landry
- Department of Chemistry, College of Arts and Sciences, University of Vermont, Burlington, Vermont
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Rosa TG, dos Santos SN, de Jesus Andreoli Pinto T, Ghisleni DDM, Barja-Fidalgo TC, Ricci-Junior E, Al-Qahtani M, Kozempel J, Bernardes ES, Santos-Oliveira R. Microradiopharmaceutical for Metastatic Melanoma. Pharm Res 2017; 34:2922-2930. [DOI: 10.1007/s11095-017-2275-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2017] [Accepted: 10/01/2017] [Indexed: 12/12/2022]
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Abstract
The i.p. administration of chemotherapy in ovarian and uterine serous carcinoma patients by biodegradable nanoparticles may represent a highly effective way to suppress peritoneal carcinomatosis. However, the efficacy of nanoparticles loaded with chemotherapeutic agents is currently hampered by their fast clearance by lymphatic drainage. Here, we show that a unique formulation of bioadhesive nanoparticles (BNPs) can interact with mesothelial cells in the abdominal cavity and significantly extend the retention of the nanoparticles in the peritoneal space. BNPs loaded with a potent chemotherapeutic agent [epothilone B (EB)] showed significantly lower systemic toxicity and higher therapeutic efficacy against i.p. chemotherapy-resistant uterine serous carcinoma-derived xenografts compared with free EB and non-BNPs loaded with EB.
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Abstract
The i.p. administration of chemotherapy in ovarian and uterine serous carcinoma patients by biodegradable nanoparticles may represent a highly effective way to suppress peritoneal carcinomatosis. However, the efficacy of nanoparticles loaded with chemotherapeutic agents is currently hampered by their fast clearance by lymphatic drainage. Here, we show that a unique formulation of bioadhesive nanoparticles (BNPs) can interact with mesothelial cells in the abdominal cavity and significantly extend the retention of the nanoparticles in the peritoneal space. BNPs loaded with a potent chemotherapeutic agent [epothilone B (EB)] showed significantly lower systemic toxicity and higher therapeutic efficacy against i.p. chemotherapy-resistant uterine serous carcinoma-derived xenografts compared with free EB and non-BNPs loaded with EB.
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Otis JB, Zong H, Kotylar A, Yin A, Bhattacharjee S, Wang H, James R. B, Wang SH. Dendrimer antibody conjugate to target and image HER-2 overexpressing cancer cells. Oncotarget 2016; 7:36002-36013. [PMID: 27144519 PMCID: PMC5094978 DOI: 10.18632/oncotarget.9081] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2015] [Accepted: 03/31/2016] [Indexed: 12/25/2022] Open
Abstract
Although many breast and lung cancers overexpress human epidermal growth factor receptor-2 (HER-2), no methods currently exist for effective and early detection of HER-2-positive cancers. To address this issue, we designed and synthesized dendrimer-based novel nano-imaging agents that contain gold nanoparticles (AuNPs) and gadolinium (Gd), conjugated with the humanized anti-HER-2 antibody (Herceptin). Generation 5 (G5) polyamidoamine (PAMAM) dendrimers were selected as the backbone for the nano-imaging agents due to their unique size, high ratio of surface functional groups and bio-functionality. We modified G5 PAMAM dendrimer surface with PEG and 1,4,7,10-tetraazacyclododecane-1,4,7,10-tetraacetic acid (DOTA) chelators to encapsulate AuNPs and complex Gd. These dendrimer entrapped AuNPs were further conjugated with Herceptin through copper-catalyzed azide- alkyne click reaction to construct the nano-imaging agent Au-G5-Gd-Herceptin. The targeted nano-imaging agent bound selectively to HER-2 overexpressing cell lines, with subsequent internalization into the cells. More importantly, non-targeted nano-imaging agent neither bound nor internalized into cells overexpressing HER-2. These results suggest that our approach could provide a platform to develop nano-diagnostic agents or nano-therapeutic agents for early detection and treatment of HER-2-positive cancers.
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Affiliation(s)
- James B. Otis
- Department of Internal Medicine, Division of Allergy, Michigan Nanotechnology Institute for Medicine and Biological Sciences, University of Michigan, Ann Arbor, Michigan, USA
| | - Hong Zong
- Department of Internal Medicine, Division of Allergy, Michigan Nanotechnology Institute for Medicine and Biological Sciences, University of Michigan, Ann Arbor, Michigan, USA
| | - Alina Kotylar
- Department of Internal Medicine, Division of Allergy, Michigan Nanotechnology Institute for Medicine and Biological Sciences, University of Michigan, Ann Arbor, Michigan, USA
| | - Anna Yin
- Department of Internal Medicine, Division of Allergy, Michigan Nanotechnology Institute for Medicine and Biological Sciences, University of Michigan, Ann Arbor, Michigan, USA
| | - Somnath Bhattacharjee
- Department of Internal Medicine, Division of Allergy, Michigan Nanotechnology Institute for Medicine and Biological Sciences, University of Michigan, Ann Arbor, Michigan, USA
| | - Han Wang
- Department of Radiology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shangai, P.R.China
| | - Baker James R.
- Department of Internal Medicine, Division of Allergy, Michigan Nanotechnology Institute for Medicine and Biological Sciences, University of Michigan, Ann Arbor, Michigan, USA
| | - Su He Wang
- Department of Internal Medicine, Division of Allergy, Michigan Nanotechnology Institute for Medicine and Biological Sciences, University of Michigan, Ann Arbor, Michigan, USA
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Zhang G, Gao J, Qian J, Zhang L, Zheng K, Zhong K, Cai D, Zhang X, Wu Z. Hydroxylated Mesoporous Nanosilica Coated by Polyethylenimine Coupled with Gadolinium and Folic Acid: A Tumor-Targeted T(1) Magnetic Resonance Contrast Agent and Drug Delivery System. ACS APPLIED MATERIALS & INTERFACES 2015; 7:14192-200. [PMID: 26084052 DOI: 10.1021/acsami.5b04294] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
A pH-responsive nanoplatform, hydroxylated mesoporous nanosilica (HMNS) coated by polyethylenimine (PEI) coupled with gadolinium and folic acid (FA) (Gd-FA-Si), was designed to deliver anticancer drug targeting and to promote contrast effect for tumor cells using magnetic resonance (MR) spectrometer. Doxorubicin (DOX) was chosen as the anticancer drug and loaded into nanopores of HMNS, then its release in simulated body fluid could be controlled through adjusting the pH. This nanoplatform could significantly enhance the MR contrast effect, and the highest theoretical relaxivity per nanoplatform could even be approximately 1.28 × 10(6) mm(-1)s(-1) because of the high Gd payload (2.61 × 10(5) per nanoplatform). The entire system possessed a high targeting performance to Hela and MDA-MB-231 cells because the FA located in the system could specifically bind to the folate-receptor sites on the surface of cell. Compared with free DOX, the nanoplatform presented a higher cell inhibition effect on the basis of cell assay. Therefore, this nanoplatform could be potentially applied as a tumor-targeted T1 MR contrast agent and pH-sensitive drug carrier system.
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Affiliation(s)
- Guilong Zhang
- §Key Laboratory of Ion Beam Bioengineering, Hefei Institutes of Physical Science, Chinese Academy of Sciences and Anhui Province, Hefei, Anhui 230031, People's Republic of China
- ⊥University of Science and Technology of China, Hefei 230026, People's Republic of China
| | - Junlan Gao
- #School of Life Sciences, Anhui Agricultural University, Hefei 230036, People's Republic of China
| | | | - Lele Zhang
- #School of Life Sciences, Anhui Agricultural University, Hefei 230036, People's Republic of China
| | | | | | - Dongqing Cai
- §Key Laboratory of Ion Beam Bioengineering, Hefei Institutes of Physical Science, Chinese Academy of Sciences and Anhui Province, Hefei, Anhui 230031, People's Republic of China
| | - Xin Zhang
- #School of Life Sciences, Anhui Agricultural University, Hefei 230036, People's Republic of China
| | - Zhengyan Wu
- §Key Laboratory of Ion Beam Bioengineering, Hefei Institutes of Physical Science, Chinese Academy of Sciences and Anhui Province, Hefei, Anhui 230031, People's Republic of China
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Cheng K, Yang M, Zhang R, Qin C, Su X, Cheng Z. Hybrid nanotrimers for dual T1 and T2-weighted magnetic resonance imaging. ACS NANO 2014; 8:9884-9896. [PMID: 25283972 PMCID: PMC4334264 DOI: 10.1021/nn500188y] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/12/2014] [Accepted: 10/03/2014] [Indexed: 05/28/2023]
Abstract
Development of multifunctional nanoparticle-based probes for dual T1- and T2-weighted magnetic resonance imaging (MRI) could allow us to image and diagnose the tumors or other abnormalities in an exceptionally accurate and reliable manner. In this study, by fusing distinct nanocrystals via solid-state interfaces, we built hybrid heteronanostructures to combine both T1 and T2- weighted contrast agents together for MRI with high accuracy and reliability. The resultant hybrid heterotrimers showed high stability in physiological conditions and could induce both simultaneous positive and negative contrast enhancements in MR images. Small animal positron emission tomography imaging study revealed that the hybrid heterostructures displayed favorable biodistribution and were suitable for in vivo imaging. Their potential as dual contrast agents for T1 and T2-weighted MRI was further demonstrated by in vitro and in vivo imaging and relaxivity measurements.
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Affiliation(s)
- Kai Cheng
- Molecular Imaging Program at Stanford (MIPS), Canary Center at Stanford for Cancer Early Detection, Department of Radiology and Bio-X Program, School of Medicine, Stanford University, 1201 Welch Road, Lucas P095, Stanford, California 94305-5484, United States
| | - Meng Yang
- Molecular Imaging Program at Stanford (MIPS), Canary Center at Stanford for Cancer Early Detection, Department of Radiology and Bio-X Program, School of Medicine, Stanford University, 1201 Welch Road, Lucas P095, Stanford, California 94305-5484, United States
| | - Ruiping Zhang
- Molecular Imaging Program at Stanford (MIPS), Canary Center at Stanford for Cancer Early Detection, Department of Radiology and Bio-X Program, School of Medicine, Stanford University, 1201 Welch Road, Lucas P095, Stanford, California 94305-5484, United States
- Department of Radiology, First Hospital of Shanxi Medical University, Taiyuan, Shanxi 030001, China
| | - Chunxia Qin
- Molecular Imaging Program at Stanford (MIPS), Canary Center at Stanford for Cancer Early Detection, Department of Radiology and Bio-X Program, School of Medicine, Stanford University, 1201 Welch Road, Lucas P095, Stanford, California 94305-5484, United States
| | - Xinhui Su
- Molecular Imaging Program at Stanford (MIPS), Canary Center at Stanford for Cancer Early Detection, Department of Radiology and Bio-X Program, School of Medicine, Stanford University, 1201 Welch Road, Lucas P095, Stanford, California 94305-5484, United States
| | - Zhen Cheng
- Molecular Imaging Program at Stanford (MIPS), Canary Center at Stanford for Cancer Early Detection, Department of Radiology and Bio-X Program, School of Medicine, Stanford University, 1201 Welch Road, Lucas P095, Stanford, California 94305-5484, United States
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9
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Steinbacher JL, Landry CC. Adsorption and release of siRNA from porous silica. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2014; 30:4396-405. [PMID: 24087929 PMCID: PMC3997627 DOI: 10.1021/la402850m] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/07/2023]
Abstract
Porous silica particles are potential transfection agents for nucleic acid-based therapies because of their large specific surface areas and pore volumes and the ease with which they can be chemically modified to maximize the loading of cargo and to effect targeting in vivo. Here, we present a systematic study of the effects of pore size and pore modification on the adsorption and release of short, interfering RNA (siRNA) from a mesoporous silica particle developed in our laboratory. Using adsorption isotherms and release experiments, we found that the short polyamine diethylenetriamine was the best chemical modification for achieving both the adsorption and release of large amounts of siRNA. The degree of functionalization with diethylenetriamine caused drastic changes in the loading capacity and binding strength of siRNA to silica with relatively large pores (8 nm and larger), but the degree of functionalization had a weaker effect in narrow pores (4 nm). Multilayer adsorption could occur in materials with large pores (15 nm). Release experiments showed that intermediate pore sizes and intermediate degrees of functionalization resulted in the best compromise between maximizing loading (from strong adsorption) and maximizing release. Capillary electrophoresis and quantitative, real-time PCR demonstrated that siRNA was released intact and that these particles functioned as a transfection agent of mammalian cells in vitro.
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Shahbazi MA, Herranz B, Santos HA. Nanostructured porous Si-based nanoparticles for targeted drug delivery. BIOMATTER 2014; 2:296-312. [PMID: 23507894 PMCID: PMC3568114 DOI: 10.4161/biom.22347] [Citation(s) in RCA: 63] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
One of the backbones in nanomedicine is to deliver drugs specifically to unhealthy cells. Drug nanocarriers can cross physiological barriers and access different tissues, which after proper surface biofunctionalization can enhance cell specificity for cancer therapy. Recent developments have highlighted the potential of mesoporous silica (PSiO2) and silicon (PSi) nanoparticles for targeted drug delivery. In this review, we outline and discuss the most recent advances on the applications and developments of cancer therapies by means of PSiO2 and PSi nanomaterials. Bio-engineering and fine tuning of anti-cancer drug vehicles, high flexibility and potential for sophisticated release mechanisms make these nanostructures promising candidates for “smart” cancer therapies. As a result of their physicochemical properties they can be controllably loaded with large amounts of drugs and coupled to homing molecules to facilitate active targeting. The main emphasis of this review will be on the in vitro and in vivo studies.
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Vivero-Escoto JL, Rieter WJ, Lau H, Huxford-Phillips RC, Lin W. Biodegradable polysilsesquioxane nanoparticles as efficient contrast agents for magnetic resonance imaging. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2013; 9:3523-31. [PMID: 23613450 PMCID: PMC3804422 DOI: 10.1002/smll.201300198] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2013] [Revised: 03/11/2013] [Indexed: 05/20/2023]
Abstract
Polysilsesquioxane (PSQ) nanoparticles are crosslinked homopolymers formed by condensation of functionalized trialkoxysilanes, and provide an interesting platform for developing biologically and biomedically relevant nanomaterials. In this work, the design and synthesis of biodegradable PSQ particles with extremely high payloads of paramagnetic Gd(III) centers is explored, for use as efficient contrast agents for magnetic resonance imaging (MRI). Two new bis(trialkoxysilyl) derivatives of Gd(III) diethylenetriamine pentaacetate (Gd-DTPA) containing disulfide linkages are synthesized and used to form biodegradable Gd-PSQ particles by base-catalyzed condensation reactions in reverse microemulsions. The Gd-PSQ particles, PSQ-1 and PSQ-2, carry 53.8 wt% and 49.3 wt% of Gd-DTPA derivatives, respectively. In addition, the surface carboxy groups on the PSQ-2 particles can be modified with polyethylene glycol (PEG) and the anisamide (AA) ligand to enhance biocompatibility and cell uptake, respectively. The Gd-PSQ particles are readily degradable to release the constituent Gd(III) chelates in the presence of endogenous reducing agents such as cysteine and glutathione. The MR relaxivities of the Gd-PSQ particles are determined using a 3T MR scanner, with r1 values ranging from 5.9 to 17.8 mMs(-1) on a per-Gd basis. Finally, the high sensitivity of the Gd-PSQ particles as T1 -weighted MR contrast agents is demonstrated with in vitro MR imaging of human lung and pancreatic cancer cells. The enhanced efficiency of the anisamide-functionalized PSQ-2 particles as a contrast agent is corroborated by both confocal laser scanning microscopy imaging and ICP-MS analysis of Gd content in vitro.
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Li Z, Liu Z, Yin M, Yang X, Ren J, Qu X. Combination delivery of antigens and CpG by lanthanides-based core-shell nanoparticles for enhanced immune response and dual-mode imaging. Adv Healthc Mater 2013; 2:1309-13. [PMID: 23526798 DOI: 10.1002/adhm.201200364] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2012] [Revised: 02/01/2013] [Indexed: 01/16/2023]
Abstract
Europium-doped GdPO4 hollow spheres/polymer core-shell nanoparticles are functionalized with ovalbumin (OVA) as a model antigen and an oligonucleotide (CpG) that stimulates the immune response. These functionalized core-shell nanoparticles are used as vaccines, where they enable efficient delivery of an antigen to target sites, tracking of the vaccines using non-invasive clinical imaging technology.
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Affiliation(s)
- Zhenhua Li
- Laboratory of Chemical Biology and State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Graduate School of the Chinese Academy of Sciences Chinese Academy of Sciences, Changchun, Jilin 130022, China, Fax: 86-431-85262625
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Macura SL, Steinbacher JL, Macpherson MB, Lathrop MJ, Sayan M, Hillegass JM, Beuschel SL, Perkins TN, Spiess PC, van der Vliet A, Butnor KJ, Shukla A, Wadsworth M, Landry CC, Mossman BT. Microspheres targeted with a mesothelin antibody and loaded with doxorubicin reduce tumor volume of human mesotheliomas in xenografts. BMC Cancer 2013; 13:400. [PMID: 24024776 PMCID: PMC3846908 DOI: 10.1186/1471-2407-13-400] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2012] [Accepted: 08/02/2013] [Indexed: 12/22/2022] Open
Abstract
Background Malignant mesotheliomas (MMs) are chemoresistant tumors related to exposure to asbestos fibers. The long latency period of MM (30-40 yrs) and heterogeneity of tumor presentation make MM difficult to diagnose and treat at early stages. Currently approved second-line treatments following surgical resection of MMs include a combination of cisplatin or carboplatin (delivered systemically) and pemetrexed, a folate inhibitor, with or without subsequent radiation. The systemic toxicities of these treatments emphasize the need for more effective, localized treatment regimens. Methods Acid-prepared mesoporous silica (APMS) microparticles were loaded with doxorubicin (DOX) and modified externally with a mesothelin (MB) specific antibody before repeated intraperitoneal (IP) injections into a mouse xenograft model of human peritoneal MM. The health/weight of mice, tumor volume/weight, tumor necrosis and cell proliferation were evaluated in tumor-bearing mice receiving saline, DOX high (0.2 mg/kg), DOX low (0.05 mg/kg), APMS-MB, or APMS-MB-DOX (0.05 mg/kg) in saline. Results Targeted therapy (APMS-MB-DOX at 0.05 mg/kg) was more effective than DOX low (0.05 mg/kg) and less toxic than treatment with DOX high (0.2 mg/kg). It also resulted in the reduction of tumor volume without loss of animal health and weight, and significantly decreased tumor cell proliferation. High pressure liquid chromatography (HPLC) of tumor tissue confirmed that APMS-MB-DOX particles delivered DOX to target tissue. Conclusions Data suggest that targeted therapy results in greater chemotherapeutic efficacy with fewer adverse side effects than administration of DOX alone. Targeted microparticles are an attractive option for localized drug delivery.
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Affiliation(s)
- Sherrill L Macura
- Department of Pathology, University of Vermont College of Medicine, 89 Beaumont Avenue, Burlington, VT 05405-0068, USA.
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Chen Y, Chen H, Shi J. In vivo bio-safety evaluations and diagnostic/therapeutic applications of chemically designed mesoporous silica nanoparticles. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2013; 25:3144-76. [PMID: 23681931 DOI: 10.1002/adma.201205292] [Citation(s) in RCA: 473] [Impact Index Per Article: 43.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/24/2012] [Revised: 02/27/2013] [Indexed: 05/19/2023]
Abstract
The remarkable progress of nanotechnology and its application in biomedicine have greatly expanded the ranges and types of biomaterials from traditional organic material-based nanoparticles (NPs) to inorganic biomaterials or organic/inorganic hybrid nanocomposites due to the unprecedented advantages of the engineered inorganic material-based NPs. Colloidal mesoporous silica NPs (MSNs), one of the most representative and well-established inorganic materials, have been promoted into biology and medicine, and shifted from extensive in vitro research towards preliminary in vivo assays in small-animal disease models. In this comprehensive review, the recent progresses in chemical design and engineering of MSNs-based biomaterials for in vivo biomedical applications has been detailed and overviewed. Due to the intrinsic structural characteristics of elaborately designed MSNs such as large surface area, high pore volume and easy chemical functionalization, they have been extensively investigated for therapeutic, diagnostic and theranostic (concurrent diagnosis and therapy) purposes, especially in oncology. Systematic in vivo bio-safety evaluations of MSNs have revealed the evidences that the in vivo bio-behaviors of MSNs are strongly related to their preparation prodecures, particle sizes, geometries, surface chemistries, dosing parameters and even administration routes. In vivo pharmacokinetics and pharmacodynamics further demonstrated the effectiveness of MSNs as the passively and/or actively targeted drug delivery systems (DDSs) for cancer chemotherapy. Especially, the advance of nano-synthetic chemistry enables the production of composite MSNs for advanced in vivo therapeutic purposes such as gene delivery, stimuli-responsive drug release, photothermal therapy, photodynamic therapy, ultrasound therapy, or anti-bacteria in tissue engineering, or as the contrast agents for biological and diagnostic imaging. Additionally, the critical issues and potential challenges related to the chemical design/synthesis of MSNs-based "magic bullet" by advanced nano-synthetic chemistry and in vivo evaluation have been discussed to highlight the issues scientists face in promoting the translation of MSNs-based DDSs into clinical trials.
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Affiliation(s)
- Yu Chen
- State Key Laboratory of High Performance, Ceramics and Superfine Microstructures, Shanghai Institute of Ceramics, Chinese Academy of Sciences, 1295 Ding-Xi Road, Shanghai 200050, P. R. China
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15
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Macura SL, Hillegass JM, Steinbacher JL, MacPherson MB, Shukla A, Beuschel SL, Perkins TN, Butnor KJ, Lathrop MJ, Sayan M, Hekmatyar K, Taatjes DJ, Kauppinen RA, Landry CC, Mossman BT. A multifunctional mesothelin antibody-tagged microparticle targets human mesotheliomas. J Histochem Cytochem 2012; 60:658-74. [PMID: 22723527 DOI: 10.1369/0022155412452567] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Pleural and peritoneal mesotheliomas (MMs) are chemoresistant tumors with no effective therapeutic strategies. The authors first injected multifunctional, acid-prepared mesoporous spheres (APMS), microparticles functionalized with tetraethylene glycol oligomers, intraperitoneally into rodents. Biodistribution of APMS was observed in major organs, peritoneal lavage fluid (PLF), and urine of normal mice and rats. After verification of increased mesothelin in human mesotheliomas injected into severe combined immunodeficient (SCID) mice, APMS were then functionalized with an antibody to mesothelin (APMS-MB) or bovine serum albumin (BSA), a nonspecific protein control, and tumor targeting was evaluated by inductively coupled plasma mass spectrometry and multifluorescence confocal microscopy. Some APMS were initially cleared via the urine over a 24 hr period, and small amounts were observed in liver, spleen, and kidneys at 24 hr and 6 days. Targeting with APMS-MB increased APMS uptake in mesenteric tumors at 6 days. Approximately 10% to 12% of the initially injected amount was observed in both spheroid and mesenteric MM at this time point. The data suggest that localized delivery of APMS-MB into the peritoneal cavity after encapsulation of drugs, DNA, or macromolecules is a novel therapeutic approach for MM and other tumors (ovarian and pancreatic) that overexpress mesothelin.
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Affiliation(s)
- Sherrill L Macura
- Department of Pathology, University of Vermont College of Medicine, Burlington, VT 05405, USA
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16
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Duncan AK, Klemm PJ, Raymond KN, Landry CC. Silica microparticles as a solid support for gadolinium phosphonate magnetic resonance imaging contrast agents. J Am Chem Soc 2012; 134:8046-9. [PMID: 22545921 PMCID: PMC3403734 DOI: 10.1021/ja302183w] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Particle-based magnetic resonance imaging (MRI) contrast agents have been the focus of recent studies, primarily due to the possibility of preparing multimodal particles capable of simultaneously targeting, imaging, and treating specific biological tissues in vivo. In addition, particle-based MRI contrast agents often have greater sensitivity than commercially available, soluble agents due to decreased molecular tumbling rates following surface immobilization, leading to increased relaxivities. Mesoporous silica particles are particularly attractive substrates due to their large internal surface areas. In this study, we immobilized a unique phosphonate-containing ligand onto mesoporous silica particles with a range of pore diameters, pore volumes, and surface areas, and Gd(III) ions were then chelated to the particles. Per-Gd(III) ionic relaxivities ranged from ∼2 to 10 mM(-1) s(-1) (37 °C, 60 MHz), compared to 3.0-3.5 mM(-1) s(-1) for commercial agents. The large surface areas allowed many Gd(III) ions to be chelated, leading to per-particle relaxivities of 3.3 × 10(7) mM(-1) s(-1), which is the largest value measured for a biologically suitable particle.
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Affiliation(s)
- Alexandra K. Duncan
- Department of Chemistry, University of Vermont, Burlington, Vermont 05405, United States
| | - Piper J. Klemm
- Department of Chemistry, University of California, Berkeley, California 94720, United States
| | - Kenneth N. Raymond
- Department of Chemistry, University of California, Berkeley, California 94720, United States
| | - Christopher C. Landry
- Department of Chemistry, University of Vermont, Burlington, Vermont 05405, United States
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17
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Rosenholm JM, Mamaeva V, Sahlgren C, Lindén M. Nanoparticles in targeted cancer therapy: mesoporous silica nanoparticles entering preclinical development stage. Nanomedicine (Lond) 2012; 7:111-20. [PMID: 22191780 DOI: 10.2217/nnm.11.166] [Citation(s) in RCA: 179] [Impact Index Per Article: 14.9] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
Nanotechnology may help overcome persisting limitations of current cancer treatment and thus contribute to the creation of more effective, safer and more affordable therapies. While some nanotechnology-based drug delivery systems are already being marketed and others are in clinical trial, most still remain in the preclinical development stage. Mesoporous silica nanoparticles have been highlighted as an interesting drug delivery platform, due to their flexibility and high drug load potential. Although numerous reports demonstrate sophisticated drug delivery mechanisms in vitro, the therapeutic benefit of these systems for in vivo applications have been under continuous debate. This has been due to nontranslatable conditions used in the in vitro studies, as well as contradictory conclusions drawn from preclinical (in vivo) studies. However, recent studies have indicated that the encouraging cellular studies could in fact be repeated also in vivo. Here, we report on these recent advances regarding therapeutic efficacy, targeting and safety issues related to the application of mesoporous silica nanoparticles in cancer therapy.
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Affiliation(s)
- Jessica M Rosenholm
- Center for Functional Materials, Laboratory for Physical Chemistry, Department of Natural Sciences, Åbo Akademi University, Porthansgatan 3-5, FI-20500, Turku, Finland
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18
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Pinho SLC, Faneca H, Geraldes CFGC, Rocha J, Carlos LD, Delville MH. Silica Nanoparticles for Bimodal MRI-Optical Imaging by Grafting Gd3+ and Eu3+/Tb3+ Complexes. Eur J Inorg Chem 2012. [DOI: 10.1002/ejic.201101110] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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19
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Cheng K, El-Boubbou K, Landry CC. Binding of HIV-1 gp120 glycoprotein to silica nanoparticles modified with CD4 glycoprotein and CD4 peptide fragments. ACS APPLIED MATERIALS & INTERFACES 2012; 4:235-243. [PMID: 22117536 DOI: 10.1021/am2013008] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
An important step in human immunodeficiency virus infection involves the interaction between the viral envelope glycoprotein gp120 and the human host cell surface receptor CD4. Herein, we describe a CD4-functionalized mesoporous silica-based system to selectively capture HIV-gp120 with high binding efficiency. Using a protection-deprotection strategy developed recently by our group, the external surface of the mesoporous particles was selectively functionalized with soluble CD4 ("sCD4") or an 18-peptide fragment mimicking the gp120 binding region. Confocal microscopy confirmed the CD4 locations and showed that the internal pores can be made accessible after external modification in a controlled manner. An evaluation of the ability of an 18-peptide CD4 fragment versus amide-immobilized sCD4 and sCD4 immobilized through its glycosidic group indicated that while all peptides were selective, the latter method was clearly best, with nearly complete removal of whole gp120 from solution. This study shows, for the first time, that sCD4 bound to mesoporous silica particles actively recognizes and retains high binding affinity for HIV-gp120. It is anticipated that, by proper modification of the accessible internal pores, our methodology can be adopted to develop porous platforms for HIV diagnosis, imaging, drug delivery, and vaccine development.
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Affiliation(s)
- Kai Cheng
- Department of Chemistry, University of Vermont, 82 University Place, Burlington, Vermont 05405, USA
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20
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Vivero-Escoto JL, Taylor-Pashow KML, Huxford RC, Rocca JD, Okoruwa C, An H, Lin W, Lin W. Multifunctional mesoporous silica nanospheres with cleavable Gd(III) chelates as MRI contrast agents: synthesis, characterization, target-specificity, and renal clearance. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2011; 7:3519-28. [PMID: 22069305 PMCID: PMC4040274 DOI: 10.1002/smll.201100521] [Citation(s) in RCA: 80] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/17/2011] [Revised: 05/31/2011] [Indexed: 05/17/2023]
Abstract
Mesoporous silica nanospheres (MSNs) are a promising material for magnetic resonance imaging (MRI) contrast agents. In this paper multifunctional MSNs with cleavable Gd(III) chelates are synthesized and characterized, and their applicability as MRI contrast agents is demonstrated both in vitro and in vivo. The MSNs contain Gd(III) chelates that are covalently linked via a redox-responsive disulfide moiety. The MSNs are further functionalized with polyethylene glycol (PEG) and an anisamide ligand to improve their biocompatibility and target specificity. The effectiveness of MSNs as an MRI imaging contrast agent and their targeting ability are successfully demonstrated in vitro using human colon adenocarcinoma and pancreatic cancer cells. Finally, the capability of this platform as an in vivo MRI contrast agent is tested using a 3T scanner. The Gd(III) chelate was quickly cleaved by the blood pool thiols and eliminated through the renal excretion pathway. Further tuning of the Gd(III) chelate release kinetics is needed before the MSN system can be used as target-specific MRI contrast agents in vivo.
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Affiliation(s)
- Juan L. Vivero-Escoto
- Department of Chemistry, University of North Carolina, Chapel Hill, North Carolina, 27599, USA
| | | | - Rachel C. Huxford
- Department of Chemistry, University of North Carolina, Chapel Hill, North Carolina, 27599, USA
| | - Joseph Della Rocca
- Department of Chemistry, University of North Carolina, Chapel Hill, North Carolina, 27599, USA
| | - Christie Okoruwa
- Department of Chemistry, University of North Carolina, Chapel Hill, North Carolina, 27599, USA
| | - Hongyu An
- Department of Radiology, University of North Carolina, Chapel Hill, North Carolina, 27599, USA
| | - Weili Lin
- Department of Chemistry, University of North Carolina, Chapel Hill, North Carolina, 27599, USA
| | - Wenbin Lin
- Department of Radiology, University of North Carolina, Chapel Hill, North Carolina, 27599, USA
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21
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Pinho SLC, Faneca H, Geraldes CFGC, Delville MH, Carlos LD, Rocha J. Lanthanide-DTPA grafted silica nanoparticles as bimodal-imaging contrast agents. Biomaterials 2011; 33:925-35. [PMID: 22035824 DOI: 10.1016/j.biomaterials.2011.09.086] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2011] [Accepted: 09/23/2011] [Indexed: 01/09/2023]
Abstract
The design and synthesis of a combined MRI-optical probe for bio-imaging are reported. The materials studied join the properties of lanthanide (Ln(3+)) complexes and nanoparticles (NPs), offering an excellent solution for bimodal imaging. The hybrid SiO(2)@APS/DTPA:Gd:Ln (Ln = Eu(3+) or Tb(3+)) (APS: 3-aminopropyltriethoxysilane, DTPA: diethylenetriamine pentaacetic acid) system increases the payload of the active magnetic centre (Gd(3+)) and introduces a Ln(3+) long-life excited state (Eu(3+): 0.35 ± 0.02 ms, Tb(3+): 1.87 ± 0.02 ms), with resistance to photobleaching and sharp emission bands. The Eu(3+) ions reside in a single low-symmetry site. Although the photoluminescence emission is not influenced by the simultaneous presence of Gd(3+) and Eu(3+), a moderate r(1) increase and a larger enhancement of r(2) are observed, particularly at high fields, due to susceptibility effects on r(2). The presence of Tb(3+) instead of Eu(3+) further raises r(1) but decreases r(2). These values are constant over a wide (5-13) pH range, indicating the paramagnetic NPs stability and absence of leaching. The uptake of NPs by living cells is fast and results in an intensity increase in the T(1)-weighted MRI images. The optical properties of the NPs in cellular pellets are also studied, confirming their potential as bimodal imaging agents.
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Affiliation(s)
- Sonia L C Pinho
- Department of Chemistry, CICECO, University of Aveiro, 3810-193 Aveiro, Portugal.
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22
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Inorganic-organic hybrid nanomaterials for therapeutic and diagnostic imaging applications. Int J Mol Sci 2011; 12:3888-927. [PMID: 21747714 PMCID: PMC3131598 DOI: 10.3390/ijms12063888] [Citation(s) in RCA: 74] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2011] [Accepted: 05/31/2011] [Indexed: 12/20/2022] Open
Abstract
Nanotechnology offers outstanding potential for future biomedical applications. In particular, due to their unique characteristics, hybrid nanomaterials have recently been investigated as promising platforms for imaging and therapeutic applications. This class of nanoparticles can not only retain valuable features of both inorganic and organic moieties, but also provides the ability to systematically modify the properties of the hybrid material through the combination of functional elements. Moreover, the conjugation of targeting moieties on the surface of these nanomaterials gives them specific targeted imaging and therapeutic properties. In this review, we summarize the recent reports in the synthesis of hybrid nanomaterials and their applications in biomedical areas. Their applications as imaging and therapeutic agents in vivo will be highlighted.
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23
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Shkrob IA, Tisch AR, Marin TW, Muntean JV, Kaminski MD, Kropf AJ. Surface Modified, Collapsible Controlled Pore Glass Materials for Sequestration and Immobilization of Trivalent Metal Ions. Ind Eng Chem Res 2011. [DOI: 10.1021/ie102494r] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Ilya A. Shkrob
- Chemical Sciences and Engineering Division, Argonne National Laboratory, 9700 S. Cass Avenue, Argonne, Illinois 60439, United States
| | - Angela R. Tisch
- Chemical Sciences and Engineering Division, Argonne National Laboratory, 9700 S. Cass Avenue, Argonne, Illinois 60439, United States
| | - Timothy W. Marin
- Chemical Sciences and Engineering Division, Argonne National Laboratory, 9700 S. Cass Avenue, Argonne, Illinois 60439, United States
| | - John V. Muntean
- Chemical Sciences and Engineering Division, Argonne National Laboratory, 9700 S. Cass Avenue, Argonne, Illinois 60439, United States
| | - Michael D. Kaminski
- Chemical Sciences and Engineering Division, Argonne National Laboratory, 9700 S. Cass Avenue, Argonne, Illinois 60439, United States
| | - A. Jeremy Kropf
- Chemical Sciences and Engineering Division, Argonne National Laboratory, 9700 S. Cass Avenue, Argonne, Illinois 60439, United States
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