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Wang X, Xing X, Zhang B, Liu F, Cheng Y, Shi D. Surface engineered antifouling optomagnetic SPIONs for bimodal targeted imaging of pancreatic cancer cells. Int J Nanomedicine 2014; 9:1601-15. [PMID: 24741308 PMCID: PMC3970947 DOI: 10.2147/ijn.s58334] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Targeted imaging contrast agents for early pancreatic ductal adenocarcinoma diagnosis was developed using superparamagnetic iron oxide nanoparticles (SPIONs). For phase transfer of SPIONs, the hydrophobic SPIONs are first treated with tetrafluoroborate and then capped by bovine serum albumin (BSA) via ligand exchange. It was experimentally found that nitrosyl tetrafluoroborate pretreatment and proper structures of molecules are essential to the effective surface functionalization of SPIONs. Nonspecific binding was found to be significantly reduced by BSA surface functionalized hydrophobic SPIONs (BSA·SPIONs). The BSA·SPIONs were monodispersed with an average size of approximately 18.0 nm and stable in a wide pH range and various ionic strengths even after 7 days of storage. The longitudinal and transverse proton relaxation rate (r1, r2) values of the BSA·SPIONs were determined to be 11.6 and 154.2 s−1 per mM of Fe3+ respectively. The r2/r1 ratio of 13.3 ensured its application as the T2-weighted magnetic resonance imaging contrast agents. When conjugated with near-infrared fluorescent dye and monoclonal antibody, the dyeBSA·SPION-monoclonal antibody bioconjugates showed excellent targeting capability with minimal nonspecific binding in the bimodal imaging of pancreatic cancer cells. The experimental approach is facile, environmentally benign, and straightforward, which presents great promise in early cancer diagnosis.
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Affiliation(s)
- Xiaohui Wang
- Radiology Department of the Tenth People's Hospital, The Institute for Biomedical Engineering and Nano Science, Tongji University School of Medicine, Shanghai, People's Republic of China
| | - Xiaohong Xing
- Radiology Department of the Tenth People's Hospital, The Institute for Biomedical Engineering and Nano Science, Tongji University School of Medicine, Shanghai, People's Republic of China
| | - Bingbo Zhang
- Radiology Department of the Tenth People's Hospital, The Institute for Biomedical Engineering and Nano Science, Tongji University School of Medicine, Shanghai, People's Republic of China
| | - Fengjun Liu
- Radiology Department of the Tenth People's Hospital, The Institute for Biomedical Engineering and Nano Science, Tongji University School of Medicine, Shanghai, People's Republic of China
| | - Yingsheng Cheng
- Department of Radiology, Shanghai Sixth People's Hospital, Shanghai Jiaotong University, Shanghai, People's Republic of China
| | - Donglu Shi
- Radiology Department of the Tenth People's Hospital, The Institute for Biomedical Engineering and Nano Science, Tongji University School of Medicine, Shanghai, People's Republic of China ; Materials Science and Engineering Program, Department of Mechanical and Materials Engineering, College of Engineering and Applied Science, University of Cincinnati, Cincinnati, OH, USA
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Liu Z, Dong C, Wang X, Wang H, Li W, Tan J, Chang J. Self-assembled biodegradable protein-polymer vesicle as a tumor-targeted nanocarrier. ACS APPLIED MATERIALS & INTERFACES 2014; 6:2393-400. [PMID: 24456410 DOI: 10.1021/am404734c] [Citation(s) in RCA: 64] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Self-assembled nanostructures based on amphiphilic protein-polymer conjugates have shown great advantages in the field of nanomedicine such as inherent biocompatibility with biosystems because of their excellent performance. Herein, a novel biodegradable protein-polymer conjugate was prepared by covalently linking the tailor-made hydrophobic maleimide-functionalized poly(ε-caprolactone) (PCL) to hydrophilic bovine serum albumin (BSA) via the maleimide-sulfhydryl coupling reaction. This protein-based conjugate with a biodegradable polyester was reported for the first time, and the obtained biohybrid displayed well-defined structure, excellent biocompatibility and low cytotoxicity, and self-assembly behaviors similar to those of the traditional amphiphilic small molecules and block copolymers. The amphiphilic BSA-PCL conjugate can self-assemble into a nanosized vesicle with a negative surface charge. Furthermore, the self-assembled vesicle based on the BSA-PCL conjugate was functionalized via linking targeting ligand cetuximab to its surface to enhance cell uptake, and the doxorubicin (DOX)-encapsulated cetuximab-functionalized vesicle exhibited enhanced antitumor activity compared with that of free DOX in vitro. These results indicate that the biodegradable protein-polymer conjugate based on BSA and PCL had great potential as a drug delivery vehicle for cancer therapy.
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Affiliation(s)
- Zhongyun Liu
- Institute of Nanobiotechnology, School of Materials Science and Engineering, Tianjin Key Laboratory of Composites and Functional Materials, Tianjin University , Tianjin 300072, P. R. China
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Hao H, Ma Q, He F, Yao P. Doxorubicin and Fe3O4 loaded albumin nanoparticles with folic acid modified dextran surface for tumor diagnosis and therapy. J Mater Chem B 2014; 2:7978-7987. [PMID: 32262088 DOI: 10.1039/c4tb01359j] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Doxorubicin loaded albumin nanoparticles with folic acid receptor-targeted and magnetically-guided functions significantly improve tumor therapy and MRI.
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Affiliation(s)
- Hequn Hao
- State Key Laboratory of Molecular Engineering of Polymers and Department of Macromolecular Science
- Fudan University
- Shanghai 200433, China
- School of Materials and Chemical Engineering
- West Anhui University
| | - Qingming Ma
- National Pharmaceutical Engineering Research Center
- Shanghai 201203, China
| | - Fen He
- National Pharmaceutical Engineering Research Center
- Shanghai 201203, China
| | - Ping Yao
- State Key Laboratory of Molecular Engineering of Polymers and Department of Macromolecular Science
- Fudan University
- Shanghai 200433, China
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Fahmi MZ, Ou KL, Chen JK, Ho MH, Tzing SH, Chang JY. Development of bovine serum albumin-modified hybrid nanoclusters for magnetofluorescence imaging and drug delivery. RSC Adv 2014. [DOI: 10.1039/c4ra05785f] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Magnetofluorescent nanoclusters containing oil-soluble nanoparticles of MnFe2O4 and AgInS2–ZnS QDs are prepared. The nanoclusters possess photoluminescent and magnetic properties as well as an excellent specific targeting and drug delivery capability on HeLa cancer cell.
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Affiliation(s)
- Mochamad Zakki Fahmi
- Department of Chemical Engineering
- National Taiwan University of Science and Technology
- Taipei 106, Republic of China
| | - Keng-Liang Ou
- Research Center for Biomedical Devices and Prototyping Production
- Taipei Medical University
- Taipei 110, Republic of China
- Research Center for Biomedical Implants and Microsurgery Devices
- Taipei Medical University
| | - Jem-Kun Chen
- Department of Materials Science and Engineering
- National Taiwan University of Science and Technology
- Taipei 106, Republic of China
| | - Ming-Hua Ho
- Department of Chemical Engineering
- National Taiwan University of Science and Technology
- Taipei 106, Republic of China
| | - Shin-Hwa Tzing
- Department of Chemical Engineering
- Army Academy
- Chung-Li 320, Republic of China
| | - Jia-Yaw Chang
- Department of Chemical Engineering
- National Taiwan University of Science and Technology
- Taipei 106, Republic of China
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Mahmoud WE, Bronstein LM, Al-Hazmi F, Al-Noaiser F, Al-Ghamdi AA. Development of Fe/Fe3O4 core-shell nanocubes as a promising magnetic resonance imaging contrast agent. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2013; 29:13095-13101. [PMID: 24079275 DOI: 10.1021/la403158d] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
Here, we report the synthesis, characterization, and properties of Fe/Fe3O4 core-shell nanocubes prepared via a simple route. It includes NaBH4 reduction of FeCl3 in an ethylene glycol solution in the presence of 2-mercaptopropionic acid (surfactant) and trisodium citrate (cosurfactant) followed by surface oxidation with trimethylamine N-oxide. The morphology and structure of Fe/Fe3O4 core-shell nanocubes were characterized using transmission electron microscopy (TEM), high-resolution TEM, selected area electron diffraction, X-ray powder diffraction, and X-ray photoelectron spectroscopy. All of the methods confirm a Fe/Fe3O4 core-shell structure of nanocubes. Magnetic measurements revealed that the Fe/Fe3O4 core/shell nanocubes are superparamagnetic at 300 K with a saturation magnetization of 129 emu/g. The T2 weighted imaging and the T2 relaxation time showed high MRI contrast and sensitivity, making these nanocubes viable candidates as enhanced MRI contrast agents.
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Affiliation(s)
- Waleed E Mahmoud
- Faculty of Science, Physics Department, King Abdulaziz University , Jeddah, Saudi Arabia
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Barrefelt Å, Saghafian M, Kuiper R, Ye F, Egri G, Klickermann M, Brismar TB, Aspelin P, Muhammed M, Dähne L, Hassan M. Biodistribution, kinetics, and biological fate of SPION microbubbles in the rat. Int J Nanomedicine 2013; 8:3241-54. [PMID: 24023513 PMCID: PMC3767493 DOI: 10.2147/ijn.s49948] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
Background In the present investigation, we studied the kinetics and biodistribution of a contrast agent consisting of poly(vinyl alcohol) (PVA) microbubbles containing superparamagnetic iron oxide (SPION) trapped between the PVA layers (SPION microbubbles). Methods The biological fate of SPION microbubbles was determined in Sprague-Dawley rats after intravenous administration. Biodistribution and elimination of the microbubbles were studied in rats using magnetic resonance imaging for a period of 6 weeks. The rats were sacrificed and perfusion-fixated at different time points. The magnetic resonance imaging results obtained were compared with histopathologic findings in different organs. Results SPION microbubbles could be detected in the liver using magnetic resonance imaging as early as 10 minutes post injection. The maximum signal was detected between 24 hours and one week post injection. Histopathology showed the presence of clustered SPION microbubbles predominantly in the lungs from the first time point investigated (10 minutes). The frequency of microbubbles declined in the pulmonary vasculature and increased in pulmonary, hepatic, and splenic macrophages over time, resulting in a relative shift from the lungs to the spleen and liver. Meanwhile, macrophages showed increasing signs of cytoplasmic iron accumulation, initially in the lungs, then followed by other organs. Conclusion The present investigation highlights the biological behavior of SPION microbubbles, including organ distribution over time and indications for biodegradation. The present results are essential for developing SPION microbubbles as a potential contrast agent and/or a drug delivery vehicle for specific organs. Such a vehicle will facilitate the use of multimodality imaging techniques, including ultrasound, magnetic resonance imaging, and single positron emission computed tomography, and hence improve diagnostics, therapy, and the ability to monitor the efficacy of treatment.
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Affiliation(s)
- Åsa Barrefelt
- Department of Clinical Science, Intervention and Technology, Division of Medical Imaging and Technology, Karolinska Institutet, and Department of Radiology, Karolinska University Hospital-Huddinge, Stockholm, Sweden ; Experimental Cancer Medicine, Department of Laboratory Medicine, Karolinska Institutet, Stockholm, Sweden
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Huang J, Wang L, Lin R, Wang AY, Yang L, Kuang M, Qian W, Mao H. Casein-coated iron oxide nanoparticles for high MRI contrast enhancement and efficient cell targeting. ACS APPLIED MATERIALS & INTERFACES 2013; 5:4632-9. [PMID: 23633522 PMCID: PMC3699787 DOI: 10.1021/am400713j] [Citation(s) in RCA: 81] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/19/2023]
Abstract
Surface properties, as well as inherent physicochemical properties, of the engineered nanomaterials play important roles in their interactions with the biological systems, which eventually affect their efficiency in diagnostic and therapeutic applications. Here we report a new class of MRI contrast agent based on milk casein protein-coated iron oxide nanoparticles (CNIOs) with a core size of 15 nm and hydrodynamic diameter ~30 nm. These CNIOs exhibited excellent water-solubility, colloidal stability, and biocompatibility. Importantly, CNIOs exhibited prominent T2 enhancing capability with a transverse relaxivity r2 of 273 mM(-1) s(-1) at 3 tesla. The transverse relaxivity is ~2.5-fold higher than that of iron oxide nanoparticles with the same core but an amphiphilic polymer coating. CNIOs showed pH-responsive properties, formed loose and soluble aggregates near the pI (pH ~4.0). The aggregates could be dissociated reversibly when the solution pH was adjusted away from the pI. The transverse relaxation property and MRI contrast enhancing effect of CNIOs remained unchanged in the pH range of 2.0-8.0. Further functionalization of CNIOs can be achieved via surface modification of the protein coating. Bioaffinitive ligands, such as a single chain fragment from the antibody of epidermal growth factor receptor (ScFvEGFR), could be readily conjugated onto the protein coating, enabling specific targeting to MDA-MB-231 breast cancer cells overexpressing EGFR. T2-weighted MRI of mice intravenously administered with CNIOs demonstrated strong contrast enhancement in the liver and spleen. These favorable properties suggest CNIOs as a class of biomarker targeted magnetic nanoparticles for MRI contrast enhancement and related biomedical applications.
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Affiliation(s)
- Jing Huang
- Department of Radiology and Imaging Sciences, Emory University School of Medicine, Atlanta, Georgia 30322, USA
| | - Liya Wang
- Department of Radiology and Imaging Sciences, Emory University School of Medicine, Atlanta, Georgia 30322, USA
| | - Run Lin
- Department of Radiology and Imaging Sciences, Emory University School of Medicine, Atlanta, Georgia 30322, USA
- Department of Interventional Radiology, Sun Ye-Tzen University School of Medicine, Guangzhou, Guangdong 510080, China
| | | | - Lily Yang
- Department of Surgery, Emory University School of Medicine, Atlanta, Georgia 30322, USA
- Winship Cancer Institute, Emory University, Atlanta, Georgia 30322, USA
| | - Min Kuang
- Ocean NanoTech, LLC, Springdale, Arkansas 72764, USA
| | - Weiping Qian
- Department of Surgery, Emory University School of Medicine, Atlanta, Georgia 30322, USA
| | - Hui Mao
- Department of Radiology and Imaging Sciences, Emory University School of Medicine, Atlanta, Georgia 30322, USA
- Winship Cancer Institute, Emory University, Atlanta, Georgia 30322, USA
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