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Dai C, Jia H, Wu W, Yin B, Wang H, Wang L, Zhong Y, Wang Z, Zhang C, Yao J. Optically Triggering and Monitoring Single-Cell-Level Metabolism Using Ormosil-Decorated Ultrathin Fibers. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2022; 38:9844-9852. [PMID: 35926220 DOI: 10.1021/acs.langmuir.2c00915] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
The integration of biological components and artificial devices requires a bio-machine interface that can simultaneously trigger and monitor the activities in biosystems. Herein, we use an organically modified silicate (ormosil) composite coating containing a light-responsive nanocapsule and a fluorescent bioprobe for reactive oxygen species (ROS) to decorate ultrathin optical fibers, namely, ormosil-decorated ultrathin fibers (OD-UFs), and demonstrate that these OD-UFs can optically trigger and monitor the intracellular metabolism activities in living cells. The sizes and shapes of UF tips were finely controlled to match the dimension and mechanical properties of living cells. The increased elasticity of the ormosil coating of OD-UFs reduces possible mechanical damage during the cell membrane penetration. The light-responsive nanocapsule was physically absorbed on the surface of the ormosil coating and could release a stimulant to trigger the metabolism activities in cells upon the guided laser through OD-UFs. The fluorescent bioprobe was covalently linked with the ormosil matrix for monitoring the intracellular ROS generation, which was verified by the in vitro experiments on the microdroplets of a hydrogen peroxide solution. Finally, we found that the living cells could maintain most of their viability after being inserted with OD-UFs, and the intracellular metabolism activities were successfully triggered and monitored at the single-cell level. The OD-UF provides a new platform for the investigation of intracellular behaviors for drug stimulations and represents a new proof of concept for a bio-machine interface based on the optical and chemical activities of organic functional molecules.
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Affiliation(s)
- Chenghu Dai
- Key Laboratory of Photochemistry, Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- School of Integrated Circuits, Anhui University, Hefei 230601, China
| | - Hao Jia
- Key Laboratory of Photochemistry, Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Wubin Wu
- Key Laboratory of Photochemistry, Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Baipeng Yin
- Key Laboratory of Photochemistry, Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Hong Wang
- Key Laboratory of Photochemistry, Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Ling Wang
- Key Laboratory of Photochemistry, Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yeteng Zhong
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Chinese Academy of Sciences, Beijing 100190, China
| | - Zihua Wang
- Fujian Provincial Key Laboratory of Brain Aging and Neurodegenerative Diseases, School of Basic Medical Sciences, Fujian Medical University, Fuzhou, Fujian 350122, China
| | - Chuang Zhang
- Key Laboratory of Photochemistry, Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Jiannian Yao
- Key Laboratory of Photochemistry, Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
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Baghdadi NE, Burke BP, Alresheedi T, Nigam S, Saeed A, Almutairi F, Domarkas J, Khan A, Archibald SJ. Multivalency in CXCR4 chemokine receptor targeted iron oxide nanoparticles. Dalton Trans 2021; 50:1599-1603. [PMID: 33502425 DOI: 10.1039/d0dt02626c] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The CXCR4 chemokine receptor is an important biomolecular target in cancer diagnostics and therapeutics. In a new multivalent approach, iron oxide nanoparticles were conjugated with multiple binding units of a low affinity azamacrocylic CXCR4 antagonist. The silica coated nanostructure has good suspension stability, a mode size of 72 nm and high affinity for CXCR4, showing >98% inhibition of anti-CXCR4 mAb binding in a receptor binding competition assay on Jurkat cells.
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Affiliation(s)
- Neazar E Baghdadi
- Centre of Nanotechnology, King Abdul-Aziz University, Jeddah, Saudi Arabia and Department of Chemistry, University of Hull, Cottingham Road, Hull, HU6 7RX, UK.
| | - Benjamin P Burke
- Department of Biomedical Sciences and PET Research Centre, University of Hull Cottingham Road, Hull, HU6 7RX, UK
| | - Tahani Alresheedi
- Department of Chemistry, University of Hull, Cottingham Road, Hull, HU6 7RX, UK. and Department of Biomedical Sciences and PET Research Centre, University of Hull Cottingham Road, Hull, HU6 7RX, UK and Department of Chemistry, College of Science and Art, Qassim University, Qassim, Saudi Arabia
| | - Shubhanchi Nigam
- Department of Chemistry, University of Hull, Cottingham Road, Hull, HU6 7RX, UK. and Department of Biomedical Sciences and PET Research Centre, University of Hull Cottingham Road, Hull, HU6 7RX, UK
| | - Abdu Saeed
- Department of Physics, Faculty of Science, King Abdul-Aziz University, Jeddah 21589, Saudi Arabia
| | - Farooq Almutairi
- Department of Chemistry, University of Hull, Cottingham Road, Hull, HU6 7RX, UK. and College of Applied Medical Sciences, University of Hafar Al-Batin, Hafar Al-Batin, Saudi Arabia
| | - Juozas Domarkas
- Department of Chemistry, University of Hull, Cottingham Road, Hull, HU6 7RX, UK. and Department of Biomedical Sciences and PET Research Centre, University of Hull Cottingham Road, Hull, HU6 7RX, UK
| | - Abid Khan
- Department of Biomedical Sciences and PET Research Centre, University of Hull Cottingham Road, Hull, HU6 7RX, UK and Division of Pharmacy and Optometry, School of Health Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester, UK
| | - Stephen J Archibald
- Department of Chemistry, University of Hull, Cottingham Road, Hull, HU6 7RX, UK. and Department of Biomedical Sciences and PET Research Centre, University of Hull Cottingham Road, Hull, HU6 7RX, UK
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3
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Avellini T, Soni N, Silvestri N, Fiorito S, De Donato F, De Mei C, Walther M, Cassani M, Ghosh S, Manna L, Stephan H, Pellegrino T. Cation Exchange Protocols to Radiolabel Aqueous Stabilized ZnS, ZnSe, and CuFeS 2 Nanocrystals with 64Cu for Dual Radio- and Photo-Thermal Therapy. ADVANCED FUNCTIONAL MATERIALS 2020; 30:2002362. [PMID: 32684910 PMCID: PMC7357593 DOI: 10.1002/adfm.202002362] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/13/2020] [Revised: 04/03/2020] [Accepted: 04/08/2020] [Indexed: 05/04/2023]
Abstract
Here, cation exchange (CE) reactions are exploited to radiolabel ZnSe, ZnS, and CuFeS2 metal chalcogenide nanocrystals (NCs) with 64Cu. The CE protocol requires one simple step, to mix the water-soluble NCs with a 64Cu solution, in the presence of vitamin C used to reduce Cu(II) to Cu(I). Given the quantitative cation replacement on the NCs, a high radiochemical yield, up to 99%, is reached. Also, provided that there is no free 64Cu, no purification step is needed, making the protocol easily translatable to the clinic. A unique aspect of the approach is the achievement of an unprecedentedly high specific activity: by exploiting a volumetric CE, the strategy enables to concentrate a large dose of 64Cu (18.5 MBq) in a small NC dose (0.18 µg), reaching a specific activity of 103 TBq g-1. Finally, the characteristic dielectric resonance peak, still present for the radiolabeled 64Cu:CuFeS2 NCs after the partial-CE reaction, enables the generation of heat under clinical laser exposure (1 W cm-2). The synergic toxicity of photo-ablation and 64Cu ionization is here proven on glioblastoma and epidermoid carcinoma tumor cells, while no intrinsic cytotoxicity is seen from the NC dose employed for these dual experiments.
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Affiliation(s)
- Tommaso Avellini
- Istituto Italiano di Tecnologia (IIT)via Morego 30Genova16163Italy
| | - Nisarg Soni
- Istituto Italiano di Tecnologia (IIT)via Morego 30Genova16163Italy
| | | | - Sergio Fiorito
- Istituto Italiano di Tecnologia (IIT)via Morego 30Genova16163Italy
| | | | - Claudia De Mei
- Istituto Italiano di Tecnologia (IIT)via Morego 30Genova16163Italy
| | - Martin Walther
- Institut für Radiopharmazeutische KrebsforschungHelmholtz‐Zentrum Dresden‐RossendorfBautzner Landstraße 400Dresden01328Germany
| | - Marco Cassani
- Istituto Italiano di Tecnologia (IIT)via Morego 30Genova16163Italy
- Present address:
International Clinical Research Center (FNUSA‐ICRC)Center for Translational MedicineBrno62500Czech Republic
| | - Sandeep Ghosh
- Istituto Italiano di Tecnologia (IIT)via Morego 30Genova16163Italy
- Present address:
Epi Process TechnologyASM America Inc.3440 East University DrivePhoenixAZ85034‐7200USA
| | - Liberato Manna
- Istituto Italiano di Tecnologia (IIT)via Morego 30Genova16163Italy
| | - Holger Stephan
- Institut für Radiopharmazeutische KrebsforschungHelmholtz‐Zentrum Dresden‐RossendorfBautzner Landstraße 400Dresden01328Germany
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Yang Y, Huang M, Qian J, Gao D, Liang X. Tunable Fe 3O 4 Nanorods for Enhanced Magnetic Hyperthermia Performance. Sci Rep 2020; 10:8331. [PMID: 32433578 PMCID: PMC7239883 DOI: 10.1038/s41598-020-65095-w] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2019] [Accepted: 03/20/2020] [Indexed: 12/15/2022] Open
Abstract
Magnetic hyperthermia is one of the most promising techniques for treating gynecological cancer, where magnetite (Fe3O4) is the most common nanomaterial used as a magnetic hyperthermia agent. Here, we demonstrate that optimal Fe3O4 nanorods (NRs) can act as a magnetic hyperthermia agent with higher specific absorption rate (SAR), which is mostly attributed to their enhanced surface anisotropy. As a result, Fe3O4 NRs could effectively hinder the growth of gynecological cancer cells in nude mice models, again demonstrating its good magnetic heating properties. These results provide a powerful basis for the development of an ideal magnetic hyperthermia agent with enhanced SAR, thereby effectively treating gynecological cancer in clinical practice.
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Affiliation(s)
- Yongxiu Yang
- Department of obstetrics and gynecology, The First Hospital of Lanzhou University, Key Laboratory for Gynecologic Oncology, Gansu Province, China
| | - Mengwei Huang
- Department of obstetrics and gynecology, The First Hospital of Lanzhou University, Key Laboratory for Gynecologic Oncology, Gansu Province, China
| | - Jinmei Qian
- Key Laboratory for Magnetism and Magnetic Materials of MOE, Key Laboratory of Special Function Materials and Structure Design of MOE, Lanzhou University, Lanzhou, 730000, P. R. China
| | - Daqiang Gao
- Key Laboratory for Magnetism and Magnetic Materials of MOE, Key Laboratory of Special Function Materials and Structure Design of MOE, Lanzhou University, Lanzhou, 730000, P. R. China
| | - Xiaolei Liang
- Department of obstetrics and gynecology, The First Hospital of Lanzhou University, Key Laboratory for Gynecologic Oncology, Gansu Province, China.
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6
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Joshi T, Kubeil M, Nsubuga A, Singh G, Gasser G, Stephan H. Harnessing the Coordination Chemistry of 1,4,7-Triazacyclononane for Biomimicry and Radiopharmaceutical Applications. Chempluschem 2018; 83:554-564. [DOI: 10.1002/cplu.201800103] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2018] [Indexed: 12/16/2022]
Affiliation(s)
- Tanmaya Joshi
- Institute of Radiopharmaceutical Cancer Research; Helmholtz-Zentrum Dresden-Rossendorf; Bautzner Landstrasse 400 01328 Dresden Germany
| | - Manja Kubeil
- Institute of Radiopharmaceutical Cancer Research; Helmholtz-Zentrum Dresden-Rossendorf; Bautzner Landstrasse 400 01328 Dresden Germany
| | - Anne Nsubuga
- Institute of Radiopharmaceutical Cancer Research; Helmholtz-Zentrum Dresden-Rossendorf; Bautzner Landstrasse 400 01328 Dresden Germany
| | - Garima Singh
- Institute of Radiopharmaceutical Cancer Research; Helmholtz-Zentrum Dresden-Rossendorf; Bautzner Landstrasse 400 01328 Dresden Germany
| | - Gilles Gasser
- Chimie ParisTech; PSL University; Laboratory for Inorganic Chemical Biology; 75005 Paris France
| | - Holger Stephan
- Institute of Radiopharmaceutical Cancer Research; Helmholtz-Zentrum Dresden-Rossendorf; Bautzner Landstrasse 400 01328 Dresden Germany
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7
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Same S, Aghanejad A, Akbari Nakhjavani S, Barar J, Omidi Y. Radiolabeled theranostics: magnetic and gold nanoparticles. BIOIMPACTS 2016; 6:169-181. [PMID: 27853680 PMCID: PMC5108989 DOI: 10.15171/bi.2016.23] [Citation(s) in RCA: 52] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/12/2016] [Revised: 09/21/2016] [Accepted: 09/27/2016] [Indexed: 01/08/2023]
Abstract
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Introduction: Growing advances in nanotechnology have facilitated the applications of newly emerged nanomaterials in the field of biomedical/pharmaceutical sciences. Following this trend, the multifunctional nanoparticles (NPs) play a significant role in development of advanced drug delivery systems (DDSs) such as diapeutics/theranostics used for simultaneous diagnosis and therapy. Multifunctional radiolabeled NPs with capability of detecting, visualizing and destroying diseased cells with least side effects have been considered as an emerging filed in presentation of the best choice in solving the therapeutic problems. Functionalized magnetic and gold NPs (MNPs and GNPs, respectively) have produced the potential of nanoparticles as sensitive multifunctional probes for molecular imaging, photothermal therapy and drug delivery and targeting.
Methods: In this study, we review the most recent works on the improvement of various techniques for development of radiolabeled magnetic and gold nanoprobes, and discuss the methods for targeted imaging and therapies.
Results: The receptor-specific radiopharmaceuticals have been developed to localized radiotherapy in disease sites. Application of advanced multimodal imaging methods and related modality imaging agents labeled with various radioisotopes (e.g., 125I, 111In, 64Cu, 68Ga, 99mTc) and MNPs/GNPs have significant effects on treatment and prognosis of cancer therapy. In addition, the surface modification with biocompatible polymer such as polyethylene glycol (PEG) have resulted in development of stealth NPs that can evade the opsonization and immune clearance. These long-circulating agents can be decorated with homing agents as well as radioisotopes for targeted imaging and therapy purposes.
Conclusion: The modified MNPs or GNPs have wide applications in concurrent diagnosis and therapy of various malignancies. Once armed with radioisotopes, these nanosystems (NSs) can be exploited for combined multimodality imaging with photothermal/photodynamic therapy while delivering the loaded drugs or genes to the targeted cells/tissues. These NSs will be a game changer in combating various cancers.
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Affiliation(s)
- Saeideh Same
- Research Center for Pharmaceutical Nanotechnology, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Ayuob Aghanejad
- Research Center for Pharmaceutical Nanotechnology, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Sattar Akbari Nakhjavani
- Research Center for Pharmaceutical Nanotechnology, Tabriz University of Medical Sciences, Tabriz, Iran ; Department of Molecular Medicine, School of Advanced Technologies in Medicine, International Campus, Tehran University of Medical Sciences, Tehran, Iran
| | - Jaleh Barar
- Research Center for Pharmaceutical Nanotechnology, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Yadollah Omidi
- Research Center for Pharmaceutical Nanotechnology, Tabriz University of Medical Sciences, Tabriz, Iran
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8
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Guillory X, Tessier A, Gratien GO, Weiss P, Colliec-Jouault S, Dubreuil D, Lebreton J, Le Bideau J. Glycidyl alkoxysilane reactivities towards simple nucleophiles in organic media for improved molecular structure definition in hybrid materials. RSC Adv 2016. [DOI: 10.1039/c6ra01658h] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
We report the first comprehensive study of the reactivity in organic media of (3-glycidyloxypropyl)trialkoxysilanes towards common nucleophiles. Their reactivity have to be emphasized in order to design and to improve new sol–gel hybrid synthesis.
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Affiliation(s)
- X. Guillory
- Institut des Matériaux Jean Rouxel (IMN)
- UMR 6502
- 44322 Nantes
- France
- IFREMER
| | - A. Tessier
- CEISAM
- UMR 6230, équipe Symbiose
- 44322 Nantes
- France
| | - G.-O. Gratien
- Institut des Matériaux Jean Rouxel (IMN)
- UMR 6502
- 44322 Nantes
- France
- CEISAM
| | - P. Weiss
- LIOAD
- INSERM U791
- 44042 Nantes
- France
| | | | - D. Dubreuil
- CEISAM
- UMR 6230, équipe Symbiose
- 44322 Nantes
- France
| | - J. Lebreton
- CEISAM
- UMR 6230, équipe Symbiose
- 44322 Nantes
- France
| | - J. Le Bideau
- Institut des Matériaux Jean Rouxel (IMN)
- UMR 6502
- 44322 Nantes
- France
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Albrecht R, Fehse S, Pant K, Nowag S, Stephan H, Haag R, Tzschucke CC. Polyglycerol-Based Copper Chelators for the Transport and Release of Copper Ions in Biological Environments. Macromol Biosci 2015; 16:412-9. [DOI: 10.1002/mabi.201500284] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2015] [Revised: 10/21/2015] [Indexed: 01/28/2023]
Affiliation(s)
- Ralf Albrecht
- Institute of Chemistry and Biochemistry; Freie Universität Berlin; Takustr. 3 14195 Berlin Germany
| | - Susanne Fehse
- Institute of Chemistry and Biochemistry; Freie Universität Berlin; Thielallee 63 14195 Berlin Germany
| | - Kritee Pant
- Institute of Radiopharmaceutical Cancer Research; Helmholtz-Zentrum Dresden - Rossendorf (HZDR); Bautzner Landstrasse 400 01328 Dresden Germany
| | - Sabrina Nowag
- Institute of Chemistry and Biochemistry; Freie Universität Berlin; Takustr. 3 14195 Berlin Germany
| | - Holger Stephan
- Institute of Radiopharmaceutical Cancer Research; Helmholtz-Zentrum Dresden - Rossendorf (HZDR); Bautzner Landstrasse 400 01328 Dresden Germany
| | - Rainer Haag
- Institute of Chemistry and Biochemistry; Freie Universität Berlin; Takustr. 3 14195 Berlin Germany
| | - Carl Christoph Tzschucke
- Institute of Chemistry and Biochemistry; Freie Universität Berlin; Takustr. 3 14195 Berlin Germany
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10
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Pant K, Gröger D, Bergmann R, Pietzsch J, Steinbach J, Graham B, Spiccia L, Berthon F, Czarny B, Devel L, Dive V, Stephan H, Haag R. Synthesis and Biodistribution Studies of 3H- and 64Cu-Labeled Dendritic Polyglycerol and Dendritic Polyglycerol Sulfate. Bioconjug Chem 2015; 26:906-18. [DOI: 10.1021/acs.bioconjchem.5b00127] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Kritee Pant
- Helmholtz-Zentrum
Dresden - Rossendorf, Institute of Radiopharmaceutical Cancer Research, Bautzner
Landstrasse 400, D-01328 Dresden, Germany
| | - Dominic Gröger
- Organische
Chemie, Institut für Chemie und Biochemie, Freie Universität Berlin, Takustrasse 3, D-14195, Berlin, Germany
| | - Ralf Bergmann
- Helmholtz-Zentrum
Dresden - Rossendorf, Institute of Radiopharmaceutical Cancer Research, Bautzner
Landstrasse 400, D-01328 Dresden, Germany
| | - Jens Pietzsch
- Helmholtz-Zentrum
Dresden - Rossendorf, Institute of Radiopharmaceutical Cancer Research, Bautzner
Landstrasse 400, D-01328 Dresden, Germany
- Technische Universität Dresden, Department of
Chemistry and Food Chemistry, D-01062 Dresden, Germany
| | - Jörg Steinbach
- Helmholtz-Zentrum
Dresden - Rossendorf, Institute of Radiopharmaceutical Cancer Research, Bautzner
Landstrasse 400, D-01328 Dresden, Germany
- Technische Universität Dresden, Department of
Chemistry and Food Chemistry, D-01062 Dresden, Germany
| | - Bim Graham
- Monash
Institute of Pharmaceutical Sciences, Monash University, Parkville, VIC 3052, Australia
| | - Leone Spiccia
- School
of Chemistry, Monash University, Clayton, VIC 3800, Australia
| | - Fannely Berthon
- CEA-Saclay, Service d’Ingénierie Moléculaire de Protéines (SIMOPRO), Labex LERMIT,
CEA-DSV-iBiTecS, 91191 Gif/Yvette Cedex, France
| | - Bertrand Czarny
- CEA-Saclay, Service d’Ingénierie Moléculaire de Protéines (SIMOPRO), Labex LERMIT,
CEA-DSV-iBiTecS, 91191 Gif/Yvette Cedex, France
| | - Laurent Devel
- CEA-Saclay, Service d’Ingénierie Moléculaire de Protéines (SIMOPRO), Labex LERMIT,
CEA-DSV-iBiTecS, 91191 Gif/Yvette Cedex, France
| | - Vincent Dive
- CEA-Saclay, Service d’Ingénierie Moléculaire de Protéines (SIMOPRO), Labex LERMIT,
CEA-DSV-iBiTecS, 91191 Gif/Yvette Cedex, France
| | - Holger Stephan
- Helmholtz-Zentrum
Dresden - Rossendorf, Institute of Radiopharmaceutical Cancer Research, Bautzner
Landstrasse 400, D-01328 Dresden, Germany
| | - Rainer Haag
- Organische
Chemie, Institut für Chemie und Biochemie, Freie Universität Berlin, Takustrasse 3, D-14195, Berlin, Germany
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11
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Burke BP, Baghdadi N, Clemente GS, Camus N, Guillou A, Kownacka AE, Domarkas J, Halime Z, Tripier R, Archibald SJ. Final step gallium-68 radiolabelling of silica-coated iron oxide nanorods as potential PET/MR multimodal imaging agents. Faraday Discuss 2015; 175:59-71. [PMID: 25325197 DOI: 10.1039/c4fd00137k] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
The investigation of iron oxide-based positron emission tomography/magnetic resonance (PET/MR) multimodal imaging agents is an expanding field in which a variety of nanoparticle sizes, shapes, surface coatings and radioisotopes are open for exploration. This study develops iron oxide nanorods which are coated with various mixtures of poly(ethylene glycol) (PEG) and macrocyclic ligand (DO3A) via the formation of a silica layer on the surface. Gallium-68 radiolabelling of the nanorods was carried out in high radiochemical yields (RCY) and their stability in human serum was demonstrated for all constructs, even in the absence of the macrocyclic chelating unit. Further studies were carried out in an attempt to determine the appropriate amount of PEG coating to give optimal properties for future in vivo studies.
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Affiliation(s)
- Benjamin P Burke
- Department of Chemistry, University of Hull, Cottingham Road, Hull, HU6 7RX, UK.
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12
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Designing reactivity-based responsive lanthanide probes for multicolor detection in biological systems. Coord Chem Rev 2014. [DOI: 10.1016/j.ccr.2013.10.012] [Citation(s) in RCA: 71] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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13
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Viehweger K, Barbaro L, García KP, Joshi T, Geipel G, Steinbach J, Stephan H, Spiccia L, Graham B. EGF receptor-targeting peptide conjugate incorporating a near-IR fluorescent dye and a novel 1,4,7-triazacyclononane-based (64)Cu(II) chelator assembled via click chemistry. Bioconjug Chem 2014; 25:1011-22. [PMID: 24758412 DOI: 10.1021/bc5001388] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
A new Boc-protected 1,4,7-triazacyclononane (TACN)-based pro-chelator compound featuring a "clickable" azidomethylpyridine pendant has been developed as a building block for the construction of multimodal imaging agents. Conjugation to a model alkyne (propargyl alcohol), followed by deprotection, generates a pentadentate ligand, as confirmed by X-ray crystallographic analysis of the corresponding distorted square-pyramidal Cu(II) complex. The ligand exhibits rapid (64)Cu(II)-binding kinetics (>95% radiochemical yield in <5 min) and a high resistance to demetalation. It may thus prove suitable for use in (64)Cu(II)-based in vivo positron emission tomography (PET). The new chelating building block has been applied to the construction of a bimodal (PET/fluorescence) peptide-based imaging probe targeting the epidermal growth factor (EGF) receptor, which is highly overexpressed on the surface of several types of cancer cells. The probe consists of a hexapeptide sequence, Leu-Ala-Arg-Leu-Leu-Thr (designated "D4"), followed by a Cys-β-Ala-β-Ala spacer, then a β-homopropargylglycine residue with the TACN-based chelator "clicked" to its side chain. A sulfonated near-infrared (NIR) fluorescent cyanine dye (sulfo-Cy5) was introduced at the N-terminus to study the EGF receptor-binding ability of the probe by laser-fluorescence spectroscopy. Binding was also confirmed by coimmunoprecipitation methods, and an apparent dissociation constant (Kd) of ca. 10 nM was determined from radioactivity-based measurements of probe binding to two EGF receptor-expressing cell lines (FaDu and A431). The probe is shown to be a biased or partial allosteric agonist of the EGF receptor, inducing phosphorylation of Thr669 and Tyr992, but not the Tyr845, Tyr998, Tyr1045, Tyr1068, or Tyr1148 residues of the receptor, in the absence of the orthosteric EGF ligand. Additionally, the probe was found to suppress the EGF-stimulated autophosphorylation of these latter residues, indicating that it is also a noncompetitive antagonist.
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Affiliation(s)
- Katrin Viehweger
- Institute of Radiopharmaceutical Cancer Research and ‡Institute of Resource Ecology, Helmholtz-Zentrum Dresden-Rossendorf eV , P.O. Box 510119, D-01314 Dresden, Germany
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14
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Zarschler K, Kubeil M, Stephan H. Establishment of two complementary in vitro assays for radiocopper complexes achieving reliable and comparable evaluation of in vivo stability. RSC Adv 2014. [DOI: 10.1039/c3ra47302c] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
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15
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Multimodality PET/MRI agents targeted to activated macrophages. J Biol Inorg Chem 2013; 19:247-58. [PMID: 24166283 DOI: 10.1007/s00775-013-1054-9] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2013] [Accepted: 10/08/2013] [Indexed: 12/18/2022]
Abstract
The recent emergence of multimodality imaging, particularly the combination of PET and MRI, has led to excitement over the prospect of improving detection of disease. Iron oxide nanoparticles have become a popular platform for the fabrication of PET/MRI probes owing to their advantages of high MRI detection sensitivity, biocompatibility, and biodegradability. In this article, we report the synthesis of dextran-coated iron oxide nanoparticles (DIO) labeled with the positron emitter (64)Cu to generate a PET/MRI probe, and modified with maleic anhydride to increase the negative surface charge. The modified nanoparticulate PET/MRI probe (MDIO-(64)Cu-DOTA) bears repetitive anionic charges on the surface that facilitate recognition by scavenger receptor type A (SR-A), a ligand receptor found on activated macrophages but not on normal vessel walls. MDIO-(64)Cu-DOTA has an average iron oxide core size of 7-8 nm, an average hydrodynamic diameter of 62.7 nm, an r1 relaxivity of 16.8 mM(-1) s(-1), and an r 2 relaxivity of 83.9 mM(-1) s(-1) (37 °C, 1.4 T). Cell studies confirmed that the probe was nontoxic and was specifically taken up by macrophages via SR-A. In comparison with the nonmodified analog, the accumulation of MDIO in macrophages was substantially improved. These characteristics demonstrate the promise of MDIO-(64)Cu-DOTA for identification of vulnerable atherosclerotic plaques via the targeting of macrophages.
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Pombo-García K, Zarschler K, Barreto JA, Hesse J, Spiccia L, Graham B, Stephan H. Design, synthesis, characterisation and in vitro studies of hydrophilic, colloidally stable, 64Cu(ii)-labelled, ultra-small iron oxide nanoparticles in a range of human cell lines. RSC Adv 2013. [DOI: 10.1039/c3ra43726d] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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17
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Bloemen M, Brullot W, Luong TT, Geukens N, Gils A, Verbiest T. Improved functionalization of oleic acid-coated iron oxide nanoparticles for biomedical applications. JOURNAL OF NANOPARTICLE RESEARCH : AN INTERDISCIPLINARY FORUM FOR NANOSCALE SCIENCE AND TECHNOLOGY 2012; 14:1100. [PMID: 23024598 PMCID: PMC3460177 DOI: 10.1007/s11051-012-1100-5] [Citation(s) in RCA: 115] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2012] [Accepted: 07/24/2012] [Indexed: 05/22/2023]
Abstract
Superparamagnetic iron oxide nanoparticles can provide multiple benefits for biomedical applications in aqueous environments such as magnetic separation or magnetic resonance imaging. To increase the colloidal stability and allow subsequent reactions, the introduction of hydrophilic functional groups onto the particles' surface is essential. During this process, the original coating is exchanged by preferably covalently bonded ligands such as trialkoxysilanes. The duration of the silane exchange reaction, which commonly takes more than 24 h, is an important drawback for this approach. In this paper, we present a novel method, which introduces ultrasonication as an energy source to dramatically accelerate this process, resulting in high-quality water-dispersible nanoparticles around 10 nm in size. To prove the generic character, different functional groups were introduced on the surface including polyethylene glycol chains, carboxylic acid, amine, and thiol groups. Their colloidal stability in various aqueous buffer solutions as well as human plasma and serum was investigated to allow implementation in biomedical and sensing applications. ELECTRONIC SUPPLEMENTARY MATERIAL: The online version of this article (doi:10.1007/s11051-012-1100-5) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Maarten Bloemen
- Department of Chemistry, KU Leuven, Celestijnenlaan 200D, Box 2425, 3001 Heverlee (Leuven), Belgium
| | - Ward Brullot
- Department of Chemistry, KU Leuven, Celestijnenlaan 200D, Box 2425, 3001 Heverlee (Leuven), Belgium
| | - Tai Thien Luong
- Department of Chemistry, KU Leuven, Celestijnenlaan 200D, Box 2425, 3001 Heverlee (Leuven), Belgium
| | - Nick Geukens
- PharmAbs, The KU Leuven Antibody Center, KU Leuven, O&N II, Herestraat 49, Box 824, 3000 Leuven, Belgium
| | - Ann Gils
- Faculty of Pharmaceutical Sciences, KU Leuven, O&N II Herestraat 49, Box 824, 3000 Leuven, Belgium
| | - Thierry Verbiest
- Department of Chemistry, KU Leuven, Celestijnenlaan 200D, Box 2425, 3001 Heverlee (Leuven), Belgium
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