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Kara G, Ozpolat B. SPIONs: Superparamagnetic iron oxide-based nanoparticles for the delivery of microRNAi-therapeutics in cancer. Biomed Microdevices 2024; 26:16. [PMID: 38324228 DOI: 10.1007/s10544-024-00698-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/05/2024] [Indexed: 02/08/2024]
Abstract
Non-coding RNA (ncRNA)-based therapeutics that induce RNA interference (RNAi), such as microRNAs (miRNAs), have drawn considerable attention as a novel class of targeted cancer therapeutics because of their capacity to specifically target oncogenes/protooncogenes that regulate key signaling pathways involved in carcinogenesis, tumor growth and progression, metastasis, cell survival, proliferation, angiogenesis, and drug resistance. However, clinical translation of miRNA-based therapeutics, in particular, has been challenging due to the ineffective delivery of ncRNA molecules into tumors and their uptake into cancer cells. Recently, superparamagnetic iron oxide-based nanoparticles (SPIONs) have emerged as highly effective and efficient for the delivery of therapeutic RNAs to malignant tissues, as well as theranostic (therapy and diagnostic) applications, due to their excellent biocompatibility, magnetic responsiveness, broad functional surface modification, safety, and biodistribution profiles. This review highlights recent advances in the use of SPIONs for the delivery of ncRNA-based therapeutics with an emphasis on their synthesis and coating strategies. Moreover, the advantages and current limitations of SPIONs and their future perspectives are discussed.
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Affiliation(s)
- Goknur Kara
- Department of Nanomedicine, Houston Methodist Research Institute, Houston, TX, 77030, USA
| | - Bulent Ozpolat
- Department of Nanomedicine, Houston Methodist Research Institute, Houston, TX, 77030, USA.
- Houston Methodist Neal Cancer Center, Houston, TX, 77030, USA.
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2
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Ilangovan SS, Mahanty B, Perumal V, Sen S. Modulating the Effect of β-Sitosterol Conjugated with Magnetic Nanocarriers to Inhibit EGFR and Met Receptor Cross Talk. Pharmaceutics 2023; 15:2158. [PMID: 37631372 PMCID: PMC10458314 DOI: 10.3390/pharmaceutics15082158] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2023] [Revised: 08/14/2023] [Accepted: 08/16/2023] [Indexed: 08/27/2023] Open
Abstract
The cross-talk between the EGFR (Epidermal Growth Factor Receptor) and MET (Hepatocyte Growth Factor Receptor) poses a significant challenge in the field of molecular signaling. Their intricate interplay leads to dysregulation and contributes to cancer progression and therapeutic resistance. β-Sitosterol (BS), a plant sterol with promising anticancer properties, shows increased research on its potential as a chemopreventive agent. However, significant modifications are required to deliver BS in cancer cells due to its lower efficacy. The present work aims to design a carrier-mediated delivery system specifically targeting cancer cells with EGFR and MET receptor cross-talk. Surface modification of BS was performed with superparamagnetic iron oxide nanoparticles (SPIONs), polyethylene glycol (PEG), and poly(N-isopropylacrylamide) (PNIPAM) to enhance the delivery of BS at the target site. BS was conjugated with SPIONs (BS-S), PNIPAM (BS-SP), PEG, and PNIPAM (BS-SPP) polymers, respectively, and the conjugated complexes were characterized. Results showed an increase in size, stability, and monodispersity in the following order, BS-S, BS-SP, and BS-SPP. The drug encapsulation efficiency was observed to be highest in BS-SPP (82.5%), compared to BS-S (61%) and BS-SP (74.9%). Sustained drug release was achieved in both BS-SP (82.6%) and BS-SPP (83%). The IC 50 value of BS, BS-S, BS-SP, and BS-SPP towards MCF 7 was 242 µg/mL,197 µg/mL, 168 µg/mL, and 149 µg/mL, HEPG2 was 274 µg/mL, 261 µg/mL, 233 µg/mL and 207 µg/mL and NCIH 460 was 191 µg/mL, 185 µg/mL, 175 and 164 µg/mL, indicating highest inhibition towards NCIH 460 cells. Our results conclude that β-sitosterol conjugated with SPION, PEG, and PNIPAM could be a potential targeted therapy in inhibiting EGFR and MET receptor-expressing cancer cells.
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Affiliation(s)
| | - Biswanath Mahanty
- Division of Biotechnology, Karunya Institute of Technology and Sciences, Coimbatore 641114, India;
| | - Venkatesan Perumal
- Center for Injury Biomechanics, Materials and Medicine, Department of Biomedical Engineering, New Jersey Institute of Technology, Newark, NJ 07102, USA;
| | - Shampa Sen
- School of Biosciences and Technology, Vellore Institute of Technology, Vellore 632014, India
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3
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Image-guided drug delivery in nanosystem-based cancer therapies. Adv Drug Deliv Rev 2023; 192:114621. [PMID: 36402247 DOI: 10.1016/j.addr.2022.114621] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2022] [Revised: 10/18/2022] [Accepted: 11/13/2022] [Indexed: 11/18/2022]
Abstract
The past decades have shown significant advancements in the development of solid tumor treatment. For instance, implementation of nanosystems for drug delivery has led to a reduction in side effects and improved delivery to the tumor region. However, clinical translation has faced challenges, as tumor drug levels are still considered to be inadequate. Interdisciplinary research has resulted in the development of more advanced drug delivery systems. These are coined "smart" due to the ability to be followed and actively manipulated in order to have better control over local drug release. Therefore, image-guided drug delivery can be a powerful strategy to improve drug activity at the target site. Being able to visualize the inflow of the administered smart nanosystem within the tumor gives the potential to determine the right moment to apply the facilitator to initiate drug release. Here we provide an overview of available nanosystems, imaging moieties, and imaging techniques. We discuss preclinical application of these smart drug delivery systems, the strength of image-guided drug delivery, and the future of personalized treatment.
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James M, Revia RA, Stephen Z, Zhang M. Microfluidic Synthesis of Iron Oxide Nanoparticles. NANOMATERIALS (BASEL, SWITZERLAND) 2020; 10:E2113. [PMID: 33114204 PMCID: PMC7690813 DOI: 10.3390/nano10112113] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Revised: 09/24/2020] [Accepted: 10/14/2020] [Indexed: 12/20/2022]
Abstract
Research efforts into the production and application of iron oxide nanoparticles (IONPs) in recent decades have shown IONPs to be promising for a range of biomedical applications. Many synthesis techniques have been developed to produce high-quality IONPs that are safe for in vivo environments while also being able to perform useful biological functions. Among them, coprecipitation is the most commonly used method but has several limitations such as polydisperse IONPs, long synthesis times, and batch-to-batch variations. Recent efforts at addressing these limitations have led to the development of microfluidic devices that can make IONPs of much-improved quality. Here, we review recent advances in the development of microfluidic devices for the synthesis of IONPs by coprecipitation. We discuss the main architectures used in microfluidic device design and highlight the most prominent manufacturing methods and materials used to construct these microfluidic devices. Finally, we discuss the benefits that microfluidics can offer to the coprecipitation synthesis process including the ability to better control various synthesis parameters and produce IONPs with high production rates.
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Affiliation(s)
- Matthew James
- Department of Materials Science and Engineering, University of Washington, Seattle, WA 98105, USA; (M.J.); (R.A.R.); (Z.S.)
| | - Richard A Revia
- Department of Materials Science and Engineering, University of Washington, Seattle, WA 98105, USA; (M.J.); (R.A.R.); (Z.S.)
| | - Zachary Stephen
- Department of Materials Science and Engineering, University of Washington, Seattle, WA 98105, USA; (M.J.); (R.A.R.); (Z.S.)
| | - Miqin Zhang
- Department of Materials Science and Engineering, University of Washington, Seattle, WA 98105, USA; (M.J.); (R.A.R.); (Z.S.)
- Department of Neurological Surgery, University of Washington, Seattle, WA 98105, USA
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5
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Imaging Characteristics of USPIO Nanoparticles (<5 nm) as MR Contrast Agent In Vitro and in the Liver of Rats. CONTRAST MEDIA & MOLECULAR IMAGING 2019; 2019:3687537. [PMID: 31427909 PMCID: PMC6679865 DOI: 10.1155/2019/3687537] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/22/2018] [Revised: 03/23/2019] [Accepted: 03/28/2019] [Indexed: 12/31/2022]
Abstract
Iron nanoparticles have an increasingly more and more important role in MR molecular imaging due to their novel magnetic and surface chemical properties. They provide new possibilities for noninvasive diagnosis and treatment monitoring, especially for tissues that are rich in macrophages. The smaller size and prolongation of the plasma half-life change the in vivo fate of ultrasmall superparamagnetic iron oxide (USPIO) nanoparticles captured by liver in reticuloendothelial system (RES) or mononuclear phagocytic system (MPS). However, there is still a lack of MR imaging studies on the liver assessing USPIO nanoparticles <5 nm in size to reflect its absorption and clearance properties. In this study, we used MRI to study the in vitro phantom and in vivo rat liver imaging characteristics of USPIO nanoparticles (<5 nm). The results showed that USPIO nanoparticles (<5 nm) could potentially reduce longitudinal and transverse relaxation times and showed similar T 1 relaxation rates compared with commercial gadolinium chelates. In addition, USPIO nanoparticles (<5 nm) in vivo demonstrated both positive (T 1) and negative (T 2) liver contrast enhancement in healthy rats' liver. Furthermore, USPIO nanoparticles showed relatively good in vitro biocompatibility and fast clearance (within 45.17 minutes after intravenous injection) in the normal liver. Taken together, these data might inspire a new personalized and precise diagnostic tool and stimulate new applications for specific targeted molecular probes.
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Noorwali A, Faidah M, Ahmed N, Bima A. Tracking iron oxide labelled mesenchymal stem cells(MSCs) using magnetic resonance imaging (MRI) in a rat model of hepatic cirrhosis. Bioinformation 2019; 15:1-10. [PMID: 31359992 PMCID: PMC6651036 DOI: 10.6026/97320630015001] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2018] [Accepted: 12/24/2018] [Indexed: 01/07/2023] Open
Abstract
Homing and tumor attenuation potential of BM-MSCs labelled with superparamagnetic iron-oxide nanoparticles (SPIONs) in a rat model of hepatic cirrhosis was evaluated. Rat BM-MSCs were derived, characterized and labelled with SPIONs (200 nm; 25 mg Fe/ml). Hepatic cirrhosis was induced in Wistar rats (n=30; 10/group) with carbon tetrachloride (CCl4; 0.3 mL/kg body weight) injected twice a week for 12 weeks. Group-I was administered vehicle (castor-oil) alone; Group-II received two doses of unlabelled BM-MSCs (3x106 cells) and Group-III received two doses of SPIONs labelled BM-MSCs (3x106 cells) via tail vein injection (0.5 ml) at weekly intervals. All animals were sacrificed after two weeks for histological, radiological and biochemical analysis. Derived BM-MSCs demonstrated MSCs related CD markers. Histology confirmed induction of hepatic cirrhosis with CCL4. Levels of alanine-aminotransferase, aspartate-aminotransferase,alkaline-phosphatase and gamma glutamyl-transferase returned to normal levels following treatment with BM-MSCs. Uptake and homing of SPIONs labelled BM-MSCs, and reduction in the size of cirrhotic nodules were confirmed using transmission electron microscopy and magnetic resonance imaging respectively. BM-MSCs reduced the pathological effects of CCL4 induced hepatic cirrhosis and labelling BMMSCs with SPIONs were non-toxic and enabled efficient tracking using non-invasive methods.
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Affiliation(s)
- Abdulwahab Noorwali
- Stem Cell Unit, King Fahd Medical Research Centre, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Mamdooh Faidah
- Department of Medical Laboratory,College of Health Sciences,King Abdulaziz University,Jeddah 21589 Saudi Arabia
| | - Naushad Ahmed
- Department of Radiology,King Abdulaziz University Hospital,King Abdulaziz University,Jeddah 21589, Saudi Arabia
| | - Abdulhadi Bima
- Department of Clinical Biochemistry,King Abdulaziz University Hospital,King Abdulaziz University,Jeddah 21 89,Saudi Arabia
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Abstract
The majority of the human genome encodes RNAs that do not code for proteins. These non-coding RNAs (ncRNAs) affect normal expression of the genes, including oncogenes and tumour suppressive genes, which make them a new class of targets for drug development in cancer. Although microRNAs (miRNAs) are the most studied regulatory ncRNAs to date, and miRNA-targeted therapeutics have already reached clinical development, including the mimics of the tumour suppressive miRNAs miR-34 and miR-16, which reached phase I clinical trials for the treatment of liver cancer and mesothelioma, the importance of long non-coding RNAs (lncRNAs) is increasingly being recognised. Here, we describe obstacles and advances in the development of ncRNA therapeutics and provide the comprehensive overview of the ncRNA chemistry and delivery technologies. Furthermore, we summarise recent knowledge on the biological functions of miRNAs and their involvement in carcinogenesis, and discuss the strategies of their therapeutic manipulation in cancer. We review also the emerging insights into the role of lncRNAs and their potential as targets for novel treatment paradigms. Finally, we provide the up-to-date summary of clinical trials involving miRNAs and future directions in the development of ncRNA therapeutics.
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Affiliation(s)
- Ondrej Slaby
- Centre for Molecular Medicine, Central European Institute of Technology, Masaryk University, Kamenice 5, Brno 625 00, Czech Republic
- Department of Comprehensive Cancer Care, Masaryk Memorial Cancer Institute, Faculty of Medicine, Masaryk University, Brno, Czech Republic
| | - Richard Laga
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, Prague, Czech Republic
| | - Ondrej Sedlacek
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, Prague, Czech Republic
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Mishra DK, Balekar N, Mishra PK. Nanoengineered strategies for siRNA delivery: from target assessment to cancer therapeutic efficacy. Drug Deliv Transl Res 2017; 7:346-358. [PMID: 28050890 DOI: 10.1007/s13346-016-0352-5] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
The promise of RNA interference (RNAi) technology in cancer therapeutics aims to deliver small interfering RNA (siRNA) for silencing of gene expression in cell type-specific pathway. However, the challenge for the delivery of stable siRNA is hindered by an immune-hostile tumor microenvironment and physiological barriers of the circulatory system. Therefore, the development and validation of safe, stable, and efficient nanoengineered delivery systems are highly essential for effective delivery of siRNA into cancer cells. This review focuses on gene-silencing mechanisms, challenges to siRNA delivery, design and delivery of nanocarrier systems, ongoing clinical trials, and translational prospects for siRNA-mediated cancer therapeutics.
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Affiliation(s)
| | - Neelam Balekar
- IPS Academy, College of Pharmacy, A. B. Road, Indore, MP, 452 012, India
| | - Pradyumna Kumar Mishra
- Department of Molecular Biology, National Institute for Research in Environmental Health, Indian Council of Medical Research (ICMR), Bhopal, India
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Behnam B, Rezazadehkermani M, Ahmadzadeh S, Mokhtarzadeh A, Nematollahi-Mahani SN, Pardakhty A. Microniosomes for concurrent doxorubicin and iron oxide nanoparticles loading; preparation, characterization and cytotoxicity studies. ARTIFICIAL CELLS NANOMEDICINE AND BIOTECHNOLOGY 2017; 46:118-125. [PMID: 28375753 DOI: 10.1080/21691401.2017.1296850] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
The current work deals with developing a suitable drug delivery system of doxorubicin (DOX) for intraperitoneal chemotherapy using niosomes through formulating non-ionic surfactants consisting of Brij™ 52, span™ 60 and Solulan™ C24. Entrapping the magnetite nanoparticles in the hydrophilic parts of niosomes was accompanied with high-efficient DOX loading by the current novel remote-loading method. Cytotoxicity of the prepared formulations was evaluated in vitro against A549 and PC-12 cell lines using the colorimetric WST-1 assay test. The obtained results revealed that, the cytotoxicity of DOX increased up to 22% especially on A549 cells by the current delivery system.
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Affiliation(s)
- Behzad Behnam
- a Pharmaceutics Research Center, Institute of Neuropharmacology, Kerman University of Medical Sciences , Kerman , Iran
| | - Mohammad Rezazadehkermani
- b Department of General Surgery, School of Medicine , Kerman University of Medical Sciences , Kerman , Iran
| | - Saeid Ahmadzadeh
- a Pharmaceutics Research Center, Institute of Neuropharmacology, Kerman University of Medical Sciences , Kerman , Iran
| | - Ahad Mokhtarzadeh
- c Research Center for Pharmaceutical Nanotechnology, Tabriz University of Medical Sciences , Tabriz , Iran.,d Department of Biotechnology , Higher Education Institute of Rab-Rashid , Tabriz , Iran
| | | | - Abbas Pardakhty
- a Pharmaceutics Research Center, Institute of Neuropharmacology, Kerman University of Medical Sciences , Kerman , Iran
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Zhang H, Xia J, Pang X, Zhao M, Wang B, Yang L, Wan H, Wu J, Fu S. Magnetic nanoparticle-loaded electrospun polymeric nanofibers for tissue engineering. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017; 73:537-543. [DOI: 10.1016/j.msec.2016.12.116] [Citation(s) in RCA: 66] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/30/2016] [Revised: 11/29/2016] [Accepted: 12/22/2016] [Indexed: 02/01/2023]
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11
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Calle D, Yilmaz D, Cerdan S, Kocer A. Drug delivery from engineered organisms and nanocarriers as monitored by multimodal imaging technologies. AIMS BIOENGINEERING 2017. [DOI: 10.3934/bioeng.2017.2.198] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
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12
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Lam T, Avti PK, Pouliot P, Tardif JC, Rhéaume É, Lesage F, Kakkar A. Surface engineering of SPIONs: role of phosphonate ligand multivalency in tailoring their efficacy. NANOTECHNOLOGY 2016; 27:415602. [PMID: 27608753 DOI: 10.1088/0957-4484/27/41/415602] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
We report the design of scaffolds containing mono-, bis-, and tris-phosphonate coordinating groups, and a polyethylene glycol chain, for stabilizing superparamagnetic iron oxide nanoparticles (SPIONs), using simple and versatile chemistry. We demonstrate that the number of anchoring phosphonate sites on the ligand influence the colloidal stability, magnetic and biological properties of SPIONs, and the latter do not solely depend on attaching moieties that can enhance their aqueous dispersion. These parameters can be tailored by the number of conjugation sites on the ligand, as evidenced from dynamic light scattering at various salt concentrations, magnetic relaxivities and cell viability studies.
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Affiliation(s)
- Tina Lam
- Department of Chemistry, McGill University, 801 Sherbrooke St. West, Montreal, Quebec H3A 0B8, Canada
| | - Pramod K Avti
- Department of Chemistry, McGill University, 801 Sherbrooke St. West, Montreal, Quebec H3A 0B8, Canada
- Department of Electrical Engineering, Ecole Polytechnique de Montreal, C.P. 6079 succ. Centre-Ville, Montreal, Quebec H3C 3A7, Canada
- Research Centre, Montreal Heart Institute, 5000 Belanger Street, Montreal, Quebec H1T 1C8, Canada
| | - Philippe Pouliot
- Department of Electrical Engineering, Ecole Polytechnique de Montreal, C.P. 6079 succ. Centre-Ville, Montreal, Quebec H3C 3A7, Canada
| | - Jean-Claude Tardif
- Research Centre, Montreal Heart Institute, 5000 Belanger Street, Montreal, Quebec H1T 1C8, Canada
- Department of Medicine, Universite de Montreal, Montreal, Quebec, Canada
| | - Éric Rhéaume
- Research Centre, Montreal Heart Institute, 5000 Belanger Street, Montreal, Quebec H1T 1C8, Canada
- Department of Medicine, Universite de Montreal, Montreal, Quebec, Canada
| | - Frederic Lesage
- Department of Electrical Engineering, Ecole Polytechnique de Montreal, C.P. 6079 succ. Centre-Ville, Montreal, Quebec H3C 3A7, Canada
- Research Centre, Montreal Heart Institute, 5000 Belanger Street, Montreal, Quebec H1T 1C8, Canada
| | - Ashok Kakkar
- Department of Chemistry, McGill University, 801 Sherbrooke St. West, Montreal, Quebec H3A 0B8, Canada
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Lam T, Avti PK, Pouliot P, Maafi F, Tardif JC, Rhéaume É, Lesage F, Kakkar A. Fabricating Water Dispersible Superparamagnetic Iron Oxide Nanoparticles for Biomedical Applications through Ligand Exchange and Direct Conjugation. NANOMATERIALS (BASEL, SWITZERLAND) 2016; 6:E100. [PMID: 28335228 PMCID: PMC5302624 DOI: 10.3390/nano6060100] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/13/2016] [Revised: 04/29/2016] [Accepted: 05/13/2016] [Indexed: 12/20/2022]
Abstract
Stable superparamagnetic iron oxide nanoparticles (SPIONs), which can be easily dispersed in an aqueous medium and exhibit high magnetic relaxivities, are ideal candidates for biomedical applications including contrast agents for magnetic resonance imaging. We describe a versatile methodology to render water dispersibility to SPIONs using tetraethylene glycol (TEG)-based phosphonate ligands, which are easily introduced onto SPIONs by either a ligand exchange process of surface-anchored oleic-acid (OA) molecules or via direct conjugation. Both protocols confer good colloidal stability to SPIONs at different NaCl concentrations. A detailed characterization of functionalized SPIONs suggests that the ligand exchange method leads to nanoparticles with better magnetic properties but higher toxicity and cell death, than the direct conjugation methodology.
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Affiliation(s)
- Tina Lam
- Department of Chemistry, McGill University, 801 Sherbrooke Street West, Montreal, QC H3A 0B8, Canada.
| | - Pramod K Avti
- Department of Chemistry, McGill University, 801 Sherbrooke Street West, Montreal, QC H3A 0B8, Canada.
- Department of Electrical Engineering, École Polytechnique de Montréal, C.P. 6079 succ. Centre-ville, Montreal, QC H3C 3A7, Canada.
- Research Center, Montreal Heart Institute, 5000 Bélanger Street, Montreal, QC H1T 1C8, Canada.
| | - Philippe Pouliot
- Department of Electrical Engineering, École Polytechnique de Montréal, C.P. 6079 succ. Centre-ville, Montreal, QC H3C 3A7, Canada.
- Research Center, Montreal Heart Institute, 5000 Bélanger Street, Montreal, QC H1T 1C8, Canada.
| | - Foued Maafi
- Research Center, Montreal Heart Institute, 5000 Bélanger Street, Montreal, QC H1T 1C8, Canada.
| | - Jean-Claude Tardif
- Research Center, Montreal Heart Institute, 5000 Bélanger Street, Montreal, QC H1T 1C8, Canada.
- Department of Medicine, Université de Montréal, Montreal, QC H3T 1J4, Canada.
| | - Éric Rhéaume
- Research Center, Montreal Heart Institute, 5000 Bélanger Street, Montreal, QC H1T 1C8, Canada.
- Department of Medicine, Université de Montréal, Montreal, QC H3T 1J4, Canada.
| | - Frédéric Lesage
- Department of Electrical Engineering, École Polytechnique de Montréal, C.P. 6079 succ. Centre-ville, Montreal, QC H3C 3A7, Canada.
- Research Center, Montreal Heart Institute, 5000 Bélanger Street, Montreal, QC H1T 1C8, Canada.
| | - Ashok Kakkar
- Department of Chemistry, McGill University, 801 Sherbrooke Street West, Montreal, QC H3A 0B8, Canada.
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14
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Daldrup-Link HE, Sammet C, Hernanz-Schulman M, Barsness KA, Cahill AM, Chung E, Doria AS, Darge K, Krishnamurthy R, Lungren MP, Moore S, Olivieri L, Panigrahy A, Towbin AJ, Trout A, Voss S. White Paper on P4 Concepts for Pediatric Imaging. J Am Coll Radiol 2016; 13:590-597.e2. [PMID: 26850380 PMCID: PMC4860067 DOI: 10.1016/j.jacr.2015.10.028] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2015] [Revised: 10/20/2015] [Accepted: 10/21/2015] [Indexed: 12/21/2022]
Abstract
Over the past decade, innovations in the field of pediatric imaging have been based largely on single-center and retrospective studies, which provided limited advances for the benefit of pediatric patients. To identify opportunities for potential "quantum-leap" progress in the field of pediatric imaging, the ACR-Pediatric Imaging Research (PIR) Committee has identified high-impact research directions related to the P4 concept of predictive, preventive, personalized, and participatory diagnosis and intervention. Input from 237 members of the Society for Pediatric Radiology was clustered around 10 priority areas, which are discussed in this article. Needs within each priority area have been analyzed in detail by ACR-PIR experts on these topics. By facilitating work in these priority areas, we hope to revolutionize the care of children by shifting our efforts from unilateral reaction to clinical symptoms, to interactive maintenance of child health.
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Affiliation(s)
- Heike E Daldrup-Link
- Lucile Packard Children's Hospital, Stanford School of Medicine, Palo Alto, California.
| | - Christina Sammet
- Ann & Robert H. Lurie Children's Hospital of Chicago, Chicago, Illinois
| | | | | | | | - Ellen Chung
- Uniformed Services University of the Health Sciences, Bethesda, Maryland
| | | | - Kassa Darge
- Children's Hospital of Philadelphia, Philadelphia, Pennsylvania
| | | | - Matthew P Lungren
- Lucile Packard Children's Hospital, Stanford School of Medicine, Palo Alto, California
| | - Sheila Moore
- Children's Hospital of Pittsburgh, Pittsburgh, Pennsylvania
| | | | | | | | - Andrew Trout
- Cincinnati Children's Hospital, Cincinnati, Ohio
| | - Stephan Voss
- Children's Hospital of Boston, Boston, Massachusetts
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15
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Tang XL, Lin BL, Cui S, Zhang X, Zhong Y, Wu Q, Zhang X, Shen XD, Wang TW. Paclitaxel modified Fe3O4 loaded albumin nanoparticles as drug delivery vehicles by self-assembly. RSC Adv 2016. [DOI: 10.1039/c6ra04659b] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Paclitaxel (PTX) modified superparamagnetic Fe3O4 nanoparticles (Fe3O4/PTX NPs) are obtained and then Fe3O4/PTX NPs are loaded into human serum albumin (HSA) to form novel Fe3O4/PTX/HSA NPs with pie structure by self-assembly method.
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Affiliation(s)
- Xiang-long Tang
- College of Material Science and Engineering
- Nanjing Tech University
- Nanjing
- China
| | - Ben-lan Lin
- College of Material Science and Engineering
- Nanjing Tech University
- Nanjing
- China
| | - Sheng Cui
- College of Material Science and Engineering
- Nanjing Tech University
- Nanjing
- China
| | - Xin Zhang
- Department of Neurosurgery
- Nanjing General Hospital of Nanjing Military Command
- Nanjing210002
- China
| | - Yang Zhong
- Department of Medical Imaging Center
- Nanjing Jiangbei People's Hospital
- Nanjing 210048
- China
| | - Qi Wu
- Department of Neurosurgery
- Nanjing General Hospital of Nanjing Military Command
- Nanjing210002
- China
| | - Xin Zhang
- College of Material Science and Engineering
- Nanjing Tech University
- Nanjing
- China
| | - Xiao-dong Shen
- College of Material Science and Engineering
- Nanjing Tech University
- Nanjing
- China
| | - Ting-wei Wang
- College of Material Science and Engineering
- Nanjing Tech University
- Nanjing
- China
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16
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Ke H, Chen H. Multimodal Micelles for Theranostic Nanomedicine. ADVANCES IN NANOTHERANOSTICS II 2016. [DOI: 10.1007/978-981-10-0063-8_10] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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Chen Q, Ke H, Dai Z, Liu Z. Nanoscale theranostics for physical stimulus-responsive cancer therapies. Biomaterials 2015; 73:214-30. [PMID: 26410788 DOI: 10.1016/j.biomaterials.2015.09.018] [Citation(s) in RCA: 140] [Impact Index Per Article: 15.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2015] [Revised: 09/10/2015] [Accepted: 09/10/2015] [Indexed: 01/26/2023]
Abstract
Physical stimulus-responsive therapies often employing multifunctional theranostic agents responsive to external physical stimuli such as light, magnetic field, ultra-sound, radiofrequency, X-ray, etc., have been widely explored as novel cancer therapy strategies, showing encouraging results in many pre-clinical animal experiments. Unlike conventional cancer chemotherapy which often accompanies with severe toxic side effects, physical stimulus-responsive agents usually are non-toxic by themselves and would destruct cancer cells only under specific external stimuli, and thus could offer greatly reduced toxicity and enhanced treatment specificity. In addition, physical stimulus-responsive therapies can also be combined with other traditional therapeutics to achieve synergistic anti-tumor effects via a variety of mechanisms. In this review, we will summarize the latest progress in the development of physical stimulus-responsive therapies, and discuss the important roles of nanoscale theranostic agents involved in those non-conventional therapeutic strategies.
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Affiliation(s)
- Qian Chen
- Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, Suzhou, Jiangsu 215123, China
| | - Hengte Ke
- College of Pharmaceutical Sciences, Soochow University, Suzhou, 215123 Jiangsu, China
| | - Zhifei Dai
- Department of Biomedical Engineering, College of Engineering, Peking University, Beijing 100871, China
| | - Zhuang Liu
- Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, Suzhou, Jiangsu 215123, China.
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Abstract
INTRODUCTION RNA interference (RNAi) is a powerful mechanism for gene silencing with the potential to greatly impact the development of new therapies for many human diseases. Short interfering RNAs (siRNAs) may be the ideal molecules for therapeutic RNAi. However, therapeutic siRNAs face significant challenges that must be overcome prior to widespread clinical use. Many efforts have been made to overcome the hurdles associated with systemic administration of siRNA; however, current approaches are still limited. As such, there is an urgent need to develop new strategies for siRNA delivery that have the potential to impact a broad spectrum of systemic diseases. AREAS COVERED This review focuses on the promise of siRNA therapies and highlights current siRNA delivery methods. With an eye toward new strategies, this review first introduces high-density lipoprotein (HDL) and describes its natural biological functions, and then transitions into how HDLs may provide significant opportunities as next-generation siRNA delivery vehicles. Importantly, this review describes how synthetic HDLs leverage the natural ability of HDL to stabilize and deliver siRNAs. EXPERT OPINION HDLs are natural nanoparticles that are critical to understanding the systemic delivery of therapeutic nucleic acids, like siRNA. Methods to synthesize biomimetic HDLs are being explored, and data demonstrate that this type of delivery vehicle may be highly beneficial for targeted and efficacious systemic delivery of siRNAs.
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Affiliation(s)
- Kaylin Marie McMahon
- Northwestern University, Feinberg School of Medicine, Department of Urology , 303 E. Chicago Avenue, Tarry 16-703, Chicago, IL 60611 , USA +1 312 503 9354 ; +1 312 503 1867 ;
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Abstract
While nanoparticles are usually designed for targeted drug delivery, they can also simultaneously provide diagnostic information by a variety of in vivo imaging methods. These diagnostic capabilities make use of specific properties of nanoparticle core materials. Near-infrared fluorescent probes provide optical detection of cells targeted by real-time nanoparticle-distribution studies within the organ compartments of live, anesthetized animals. By combining different imaging modalities, we can start with deep-body imaging by magnetic resonance imaging or computed tomography, and by using optical imaging, get down to the resolution required for real-time fluorescence-guided surgery.
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Affiliation(s)
- Jaehong Key
- Weldon School of Biomedical Engineering, West Lafayette, IN, USA ; Birck Nanotechnology Center, West Lafayette, IN, USA ; Bindley Bioscience Center, West Lafayette, IN, USA
| | - James F Leary
- Weldon School of Biomedical Engineering, West Lafayette, IN, USA ; Birck Nanotechnology Center, West Lafayette, IN, USA ; Bindley Bioscience Center, West Lafayette, IN, USA ; College of Veterinary Medicine, Purdue University, West Lafayette, IN, USA
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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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Ke H, Wang J, Tong S, Jin Y, Wang S, Qu E, Bao G, Dai Z. Gold nanoshelled liquid perfluorocarbon magnetic nanocapsules: a nanotheranostic platform for bimodal ultrasound/magnetic resonance imaging guided photothermal tumor ablation. Theranostics 2013; 4:12-23. [PMID: 24396512 PMCID: PMC3881224 DOI: 10.7150/thno.7275] [Citation(s) in RCA: 102] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2013] [Accepted: 10/01/2013] [Indexed: 01/15/2023] Open
Abstract
Imaging guided ablation therapy has been applied in both biomedical research and clinical trials and turned out to be one of the most promising approaches for cancer treatment. Herein, the multifunctional nanocapsules were fabricated through loading perfluorooctylbromide (PFOB) and superparamagnetic iron oxide nanoparticles (SPIOs) into poly(lactic acid) (PLA) nanocapsules (NCs), followed by the formation of PEGylated gold nanoshell on the surface. The resulting multi-component NCs were proved to be able to act as nanotheranostic agent to achieve successful bimodal ultrasound (US)/magnetic resonance imaging (MRI) guided photothermal ablation in human tumor xenograft models non-invasively. Such a single theranostic agent with the combination of real-time US and high-resolution MR imaging would be of great value to offer more comprehensive diagnostic information and dynamics of disease progression for the accurate location of therapeutic focusing spot in the targeted tumor tissue, showing great potential as an effective nanoplatform for contrast imaging guided photothermal therapy.
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Affiliation(s)
- Hengte Ke
- 2. Nanomedicine and Biosensor Laboratory, School of Life Science and Technology, Harbin Institute of Technology, Harbin 150001, China
| | - Jinrui Wang
- 1. College of Engineering and Peking University Third Hospital, Peking University, Beijing 100871, China
| | - Sheng Tong
- 3. Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Atlanta, Georgia 30332, USA
| | - Yushen Jin
- 2. Nanomedicine and Biosensor Laboratory, School of Life Science and Technology, Harbin Institute of Technology, Harbin 150001, China
| | - Shumin Wang
- 1. College of Engineering and Peking University Third Hospital, Peking University, Beijing 100871, China
| | - Enze Qu
- 1. College of Engineering and Peking University Third Hospital, Peking University, Beijing 100871, China
| | - Gang Bao
- 3. Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Atlanta, Georgia 30332, USA
| | - Zhifei Dai
- 1. College of Engineering and Peking University Third Hospital, Peking University, Beijing 100871, China
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22
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Superparamagnetic iron oxide based nanoprobes for imaging and theranostics. Adv Colloid Interface Sci 2013; 199-200:95-113. [PMID: 23891347 DOI: 10.1016/j.cis.2013.06.007] [Citation(s) in RCA: 61] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2013] [Revised: 06/21/2013] [Accepted: 06/27/2013] [Indexed: 12/11/2022]
Abstract
The need to target, deliver and subsequently evaluate the efficacy of therapeutics in the treatment of a disease has provided added impetus in developing novel and highly efficient contrast agents. Superparamagnetic iron oxide nanoparticles (SPIONs) have offered tremendous potential in designing advanced magnetic resonance imaging (MRI) diagnostic agents, due to their unique physicochemical properties. There has been tremendous effort devoted in the recent past in developing synthetic methodologies through which their size, hydrodynamic radii, chemical composition and morphologies could be tailored at the nanoscale. This enables one to fine tune their magnetic behavior, and thus their MRI response. While novel synthetic strategies are being assembled for directing SPIONs to the diseased site as well as imparting them stealth and biocompatibility, it is also essential to evaluate their biological toxicological profiles. This review highlights recent advances that have been made in the synthesis of SPIONs, subsequent functionalization with desired entities, and a discussion on their use as MRI contrast agents in cardiovascular research.
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Lanza GM, Moonen C, Baker JR, Chang E, Cheng Z, Grodzinski P, Ferrara K, Hynynen K, Kelloff G, Lee YEK, Patri AK, Sept D, Schnitzer JE, Wood BJ, Zhang M, Zheng G, Farahani K. Assessing the barriers to image-guided drug delivery. WILEY INTERDISCIPLINARY REVIEWS-NANOMEDICINE AND NANOBIOTECHNOLOGY 2013; 6:1-14. [PMID: 24339356 DOI: 10.1002/wnan.1247] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/22/2013] [Revised: 09/06/2013] [Accepted: 09/09/2013] [Indexed: 12/13/2022]
Abstract
Imaging has become a cornerstone for medical diagnosis and the guidance of patient management. A new field called image-guided drug delivery (IGDD) now combines the vast potential of the radiological sciences with the delivery of treatment and promises to fulfill the vision of personalized medicine. Whether imaging is used to deliver focused energy to drug-laden particles for enhanced, local drug release around tumors, or it is invoked in the context of nanoparticle-based agents to quantify distinctive biomarkers that could risk stratify patients for improved targeted drug delivery efficiency, the overarching goal of IGDD is to use imaging to maximize effective therapy in diseased tissues and to minimize systemic drug exposure in order to reduce toxicities. Over the last several years, innumerable reports and reviews covering the gamut of IGDD technologies have been published, but inadequate attention has been directed toward identifying and addressing the barriers limiting clinical translation. In this consensus opinion, the opportunities and challenges impacting the clinical realization of IGDD-based personalized medicine were discussed as a panel and recommendations were proffered to accelerate the field forward.
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Affiliation(s)
- Gregory M Lanza
- Division of Cardiology, Washington University Medical School, St. Louis, MO, USA
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Recent developments in nanoparticle-based siRNA delivery for cancer therapy. BIOMED RESEARCH INTERNATIONAL 2013; 2013:782041. [PMID: 23844368 PMCID: PMC3703404 DOI: 10.1155/2013/782041] [Citation(s) in RCA: 75] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 12/31/2012] [Accepted: 05/30/2013] [Indexed: 12/22/2022]
Abstract
RNA interference (RNAi) is a gene regulation mechanism initiated by RNA molecules that enables sequence-specific gene silencing by promoting degradation of specific mRNAs. Molecular therapy using small interfering RNA (siRNA) has shown great therapeutic potential for diseases caused by abnormal gene overexpression or mutation. The major challenges to application of siRNA therapeutics include the stability and effective delivery of siRNA in vivo. Important progress in nanotechnology has led to the development of efficient siRNA delivery systems. In this review, the authors discuss recent advances in nanoparticle-mediated siRNA delivery and the application of siRNA in clinical trials for cancer therapy. This review will also offer perspectives on future applications of siRNA therapeutics.
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25
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Key J, Cooper C, Kim AY, Dhawan D, Knapp DW, Kim K, Park JH, Choi K, Kwon IC, Park K, Leary JF. In vivo NIRF and MR dual-modality imaging using glycol chitosan nanoparticles. J Control Release 2012; 163:249-55. [DOI: 10.1016/j.jconrel.2012.07.038] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2012] [Revised: 07/26/2012] [Accepted: 07/28/2012] [Indexed: 01/09/2023]
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26
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Shim MS, Kwon YJ. Stimuli-responsive polymers and nanomaterials for gene delivery and imaging applications. Adv Drug Deliv Rev 2012; 64:1046-59. [PMID: 22329941 DOI: 10.1016/j.addr.2012.01.018] [Citation(s) in RCA: 283] [Impact Index Per Article: 23.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2011] [Revised: 01/30/2012] [Accepted: 01/30/2012] [Indexed: 12/11/2022]
Abstract
Multiple extra- and intracellular obstacles, including low stability in blood, poor cellular uptake, and inefficient endosomal escape and disassembly in the cytoplasm, have to be overcome in order to deliver nucleic acids for gene therapy. This review introduces the recent advances in tackling the key challenges in achieving efficient, targeted, and safe nonviral gene delivery using various nucleic acid-containing nanomaterials that are designed to respond to various extra- and intracellular biological stimuli (e.g., pH, redox potential, and enzyme) as well as external artificial triggers (e.g., light and ultrasound). Gene delivery in combination with molecular imaging and targeting enables diagnostic assessment, treatment monitoring and quantification of efficiency, and confirmation of cure, thus fulfilling the great promise of efficient and personalized medicine. Nanomaterials platform for combined imaging and gene therapy, nanotheragnostics, using stimuli-responsive materials is also highlighted in this review. It is clear that developing novel multifunctional nonviral vectors, which transform their physico-chemical properties in response to various stimuli in a timely and spatially controlled manner, is highly desired to translate the promise of gene therapy for the clinical success.
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Liu Y, Yu F. Substrate-specific modifications on magnetic iron oxide nanoparticles as an artificial peroxidase for improving sensitivity in glucose detection. NANOTECHNOLOGY 2011; 22:145704. [PMID: 21368352 DOI: 10.1088/0957-4484/22/14/145704] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Magnetic iron oxide nanoparticles (MION) were recently found to act as a peroxidase with intrinsic advantages over natural counterparts. Their limited affinity toward catalysis substrates, however, dramatically reduces their utility. In this paper, some effective groups were screened out and conjugated on MION as substrate-specific modifications for improving MION's affinity to substrates and hence utility. Nanoparticles of four different superficial structures were synthesized and characterized by TEM, size, zeta potential and SQUID, and assayed for peroxidase activity. Glucose detection was selected as an application model system to evaluate the bonus thereof. Catalysis was found to follow Michaelis-Menten kinetics. Sulfhydryl groups incorporated on MION (SH-MION) notably improve the affinity toward a substrate (hydrogen peroxide) and so do amino groups (NH₂-MION) toward another substrate, proved by variation in the determined kinetic parameters. A synergistically positive effect was observed and an apparently elevated detection sensitivity and a significantly lowered detection limit of glucose were achieved when integrated with both sulfhydryl and amino groups (SH-NH₂-MION). Our findings suggest that substrate-specific surface modifications are a straightforward and robust strategy to improve MION peroxidase-like activity. The high activity extends magnetic nanoparticles to wide applications other than glucose detection.
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Affiliation(s)
- Yanping Liu
- Key Laboratory for Green Chemical Process of Ministry of Education, College of Chemical Engineering and Pharmacy, Wuhan Institute of Technology, Wuhan 430073, People's Republic of China
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28
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Cole AJ, David AE, Wang J, Galbán CJ, Hill HL, Yang VC. Polyethylene glycol modified, cross-linked starch-coated iron oxide nanoparticles for enhanced magnetic tumor targeting. Biomaterials 2010; 32:2183-93. [PMID: 21176955 DOI: 10.1016/j.biomaterials.2010.11.040] [Citation(s) in RCA: 188] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2010] [Accepted: 11/18/2010] [Indexed: 01/04/2023]
Abstract
While successful magnetic tumor targeting of iron oxide nanoparticles has been achieved in a number of models, the rapid blood clearance of magnetically suitable particles by the reticuloendothelial system (RES) limits their availability for targeting. This work aimed to develop a long-circulating magnetic iron oxide nanoparticle (MNP) platform capable of sustained tumor exposure via the circulation and, thus, potentially enhanced magnetic tumor targeting. Aminated, cross-linked starch (DN) and aminosilane (A) coated MNPs were successfully modified with 5 kDa (A5, D5) or 20 kDa (A20, D20) polyethylene glycol (PEG) chains using simple N-Hydroxysuccinimide (NHS) chemistry and characterized. Identical PEG-weight analogues between platforms (A5 & D5, A20 & D20) were similar in size (140-190 nm) and relative PEG labeling (1.5% of surface amines - A5/D5, 0.4% - A20/D20), with all PEG-MNPs possessing magnetization properties suitable for magnetic targeting. Candidate PEG-MNPs were studied in RES simulations in vitro to predict long-circulating character. D5 and D20 performed best showing sustained size stability in cell culture medium at 37 °C and 7 (D20) to 10 (D5) fold less uptake in RAW264.7 macrophages when compared to previously targeted, unmodified starch MNPs (D). Observations in vitro were validated in vivo, with D5 (7.29 h) and D20 (11.75 h) showing much longer half-lives than D (0.12 h). Improved plasma stability enhanced tumor MNP exposure 100 (D5) to 150 (D20) fold as measured by plasma AUC(0-∞). Sustained tumor exposure over 24 h was visually confirmed in a 9L-glioma rat model (12 mg Fe/kg) using magnetic resonance imaging (MRI). Findings indicate that a polyethylene glycol modified, cross-linked starch-coated MNP is a promising platform for enhanced magnetic tumor targeting, warranting further study in tumor models.
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Affiliation(s)
- Adam J Cole
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Michigan, Ann Arbor, MI 48109-1065, USA
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Zou P, Yu Y, Wang YA, Zhong Y, Welton A, Galbán C, Wang S, Sun D. Superparamagnetic iron oxide nanotheranostics for targeted cancer cell imaging and pH-dependent intracellular drug release. Mol Pharm 2010; 7:1974-84. [PMID: 20845930 DOI: 10.1021/mp100273t] [Citation(s) in RCA: 110] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Studies were conducted to develop antibody- and fluorescence-labeled superparamagnetic iron oxide nanoparticle (SPIO) nanotheranostics for magnetic resonance imaging (MRI) and fluorescence imaging of cancer cells and pH-dependent intracellular drug release. SPIO nanoparticles (10 nm) were coated with amphiphilic polymers and PEGylated. The antibody HuCC49ΔCH2 and fluorescent dye 5-FAM were conjugated to the PEG of iron oxide nanoparticles (IONPs). Anticancer drugs doxorubicin (Dox), azido-doxorubicin (Adox), MI-219, and 17-DMAG containing primary amine, azide, secondary amine, and tertiary amine, respectively, were encapsulated into IONPs. The encapsulation efficiency and drug release at various pHs were determined using LC-MS/MS. The cancer targeting and imaging were monitored using MRI and fluorescent microscopy in a colon cancer cell line (LS174T). The pH-dependent drug release, intracellular distribution, and cytotoxicity were evaluated using microscopy and MTS assay. The PEGylation of SPIO and conjugation with antibody and 5-FAM increased SPIO size from 18 to 44 nm. Fluorescent imaging, magnetic resonance imaging (MRI) and Prussian blue staining demonstrated that HuCC49ΔCH2-SPIO increased cancer cell targeting. HuCC49ΔCH2-SPIO nanotheranostics decreased the T(2) values in MRI of LS174T cells from 117.3 ± 1.8 ms to 55.5 ± 2.6 ms. The loading capacities of Dox, Adox, MI-219, and 17-DMAG were 3.16 ± 0.77%, 6.04 ± 0.61%, 2.22 ± 0.42%, and 0.09 ± 0.07%, respectively. Dox, MI-219 and 17-DMAG showed pH-dependent release while Adox did not. Fluorescent imaging demonstrated the accumulation of HuCC49ΔCH2-SPIO nanotheranostics in endosomes/lysosomes. The encapsulated Dox was released in acidic lysosomes and diffused into cytosol and nuclei. In contrast, the encapsulated Adox only showed limited release in endosomes/lysosomes. HuCC49ΔCH2-SPIO nanotheranostics target-delivered more Dox to LS174T cells than nonspecific IgG-SPIO and resulted in a lower IC(50) (1.44 μM vs 0.44 μM). The developed HuCC49ΔCH2-SPIO nanotheranostics provides an integrated platform for cancer cell imaging, targeted anticancer drug delivery and pH-dependently drug release.
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Affiliation(s)
- Peng Zou
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Michigan, Ann Arbor, Michigan 48109, USA
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Mohammad F, Balaji G, Weber A, Uppu RM, Kumar CSSR. Influence of Gold Nanoshell on Hyperthermia of Super Paramagnetic Iron Oxide Nanoparticles (SPIONs). THE JOURNAL OF PHYSICAL CHEMISTRY. C, NANOMATERIALS AND INTERFACES 2010; 114:19194-19201. [PMID: 21103390 PMCID: PMC2987684 DOI: 10.1021/jp105807r] [Citation(s) in RCA: 67] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
Gold nanoshell around super paramagnetic iron oxide nanoparticles (SPIONs) was synthesized and small angle X-ray scattering (SAXS) analysis suggests a gold coating of approximately 0.4 to 0.5 nm thickness. On application of low frequency oscillating magnetic fields (44 - 430 Hz), a four- to five-fold increase in the amount of heat released with gold-coated SPIONs (6.3 nm size) in comparison with SPIONs (5.4 nm size) was observed. Details of the influence of frequencies of oscillating magnetic field, concentration and solvent on heat generation are presented. We also show that, in the absence of oscillating magnetic field, both SPIONs and SPIONs@Au are not particularly cytotoxic to mammalian cells (MCF-7 breast carcinoma cells and H9c2 cardiomyoblasts) in culture, as indicated by the reduction of 3-(4,5-dimethylthiazol-2-yl)-5-(3-carboxymethoxyphenyl)-2-(4-sulfophenyl)-2H-tetrazolium by viable cells in a phenazine methosulfate-assisted reaction.
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Affiliation(s)
- Faruq Mohammad
- Center for Advanced Microstructures & Devices, Louisiana State University, 6980 Jefferson Highway, Baton Rouge, LA 70806. USA
- Environmental Toxicology, Southern University and A&M College, Baton Rouge, LA 70813, USA
| | - Gopalan Balaji
- Center for Advanced Microstructures & Devices, Louisiana State University, 6980 Jefferson Highway, Baton Rouge, LA 70806. USA
| | - Andrew Weber
- Center for Advanced Microstructures & Devices, Louisiana State University, 6980 Jefferson Highway, Baton Rouge, LA 70806. USA
| | - Rao M. Uppu
- Environmental Toxicology, Southern University and A&M College, Baton Rouge, LA 70813, USA
| | - Challa S. S. R. Kumar
- Center for Advanced Microstructures & Devices, Louisiana State University, 6980 Jefferson Highway, Baton Rouge, LA 70806. USA
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