1
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Davarci G, Wängler C, Eberhardt K, Geppert C, Schirrmacher R, Freudenberg R, Pretze M, Wängler B. Radiosynthesis of Stable 198Au-Nanoparticles by Neutron Activation of α vβ 3-Specific AuNPs for Therapy of Tumor Angiogenesis. Pharmaceuticals (Basel) 2023; 16:1670. [PMID: 38139797 PMCID: PMC10747377 DOI: 10.3390/ph16121670] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2023] [Revised: 11/24/2023] [Accepted: 11/28/2023] [Indexed: 12/24/2023] Open
Abstract
This paper reports on the development of stable tumor-specific gold nanoparticles (AuNPs) activated by neutron irradiation as a therapeutic option for the treatment of cancer with high tumor angiogenesis. The AuNPs were designed with different mono- or dithiol-ligands and decorated with different amounts of Arg-Gly-Asp (RGD) peptides as a tumor-targeting vector for αvβ3 integrin, which is overexpressed in tissues with high tumor angiogenesis. The AuNPs were evaluated for avidity in vitro and showed favorable properties with respect to tumor cell accumulation. Furthermore, the therapeutic properties of the [198Au]AuNPs were evaluated in vitro on U87MG cells in terms of cell survival, suggesting that these [198Au]AuNPs are a useful basis for future therapeutic concepts.
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Affiliation(s)
- Güllü Davarci
- Molecular Imaging and Radiochemistry, Clinic of Radiology and Nuclear Medicine, Medical Faculty Mannheim of Heidelberg University, 68167 Mannheim, Germany;
| | - Carmen Wängler
- Biomedical Chemistry, Clinic of Radiology and Nuclear Medicine, Medical Faculty Mannheim of Heidelberg University, 68167 Mannheim, Germany;
- Mannheim Institute for Intelligent Systems in Medicine MIISM, Medical Faculty Mannheim of Heidelberg University, 68167 Mannheim, Germany
| | - Klaus Eberhardt
- Research Reactor TRIGA Mainz, Institute for Nuclear Chemistry, Johannes-Gutenberg-Universität Mainz, 55128 Mainz, Germany; (K.E.); (C.G.)
| | - Christopher Geppert
- Research Reactor TRIGA Mainz, Institute for Nuclear Chemistry, Johannes-Gutenberg-Universität Mainz, 55128 Mainz, Germany; (K.E.); (C.G.)
| | - Ralf Schirrmacher
- Department of Oncology, Division of Oncological Imaging, University of Alberta, Edmonton, AB T6G 2R3, Canada;
| | - Robert Freudenberg
- Department of Nuclear Medicine, University Hospital Carl Gustav Carus, TU Dresden, 01307 Dresden, Germany;
| | - Marc Pretze
- Molecular Imaging and Radiochemistry, Clinic of Radiology and Nuclear Medicine, Medical Faculty Mannheim of Heidelberg University, 68167 Mannheim, Germany;
- Department of Nuclear Medicine, University Hospital Carl Gustav Carus, TU Dresden, 01307 Dresden, Germany;
| | - Björn Wängler
- Molecular Imaging and Radiochemistry, Clinic of Radiology and Nuclear Medicine, Medical Faculty Mannheim of Heidelberg University, 68167 Mannheim, Germany;
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2
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α vβ 3-Specific Gold Nanoparticles for Fluorescence Imaging of Tumor Angiogenesis. NANOMATERIALS 2021; 11:nano11010138. [PMID: 33430079 PMCID: PMC7827626 DOI: 10.3390/nano11010138] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/25/2020] [Revised: 12/22/2020] [Accepted: 12/30/2020] [Indexed: 11/17/2022]
Abstract
This paper reports on the development of tumor-specific gold nanoparticles (AuNPs) as theranostic tools intended for target accumulation and the detection of tumor angiogenesis via optical imaging (OI) before therapy is performed, being initiated via an external X-ray irradiation source. The AuNPs were decorated with a near-infrared dye, and RGD peptides as the tumor targeting vector for αvβ3-integrin, which is overexpressed in tissue with high tumor angiogenesis. The AuNPs were evaluated in an optical imaging setting in vitro and in vivo exhibiting favorable diagnostic properties with regards to tumor cell accumulation, biodistribution, and clearance. Furthermore, the therapeutic properties of the AuNPs were evaluated in vitro on pUC19 DNA and on A431 cells concerning acute and long-term toxicity, indicating that these AuNPs could be useful as radiosensitizers in therapeutic concepts in the future.
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3
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Chabloz NG, Perry HL, Yoon IC, Coulson AJ, White AJP, Stasiuk GJ, Botnar RM, Wilton-Ely JDET. Combined Magnetic Resonance Imaging and Photodynamic Therapy Using Polyfunctionalised Nanoparticles Bearing Robust Gadolinium Surface Units. Chemistry 2020; 26:4552-4566. [PMID: 31981387 DOI: 10.1002/chem.201904757] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2019] [Indexed: 12/12/2022]
Abstract
A robust dithiocarbamate tether allows novel gadolinium units based on DOTAGA (q=1) to be attached to the surface of gold nanoparticles (2.6-4.1 nm diameter) along with functional units offering biocompatibility, targeting and photodynamic therapy. A dramatic increase in relaxivity (r1 ) per Gd unit from 5.01 mm-1 s-1 in unbound form to 31.68 mm-1 s-1 (10 MHz, 37 °C) is observed when immobilised on the surface due to restricted rotation and enhanced rigidity of the Gd complex on the nanoparticle surface. The single-step synthetic route provides a straightforward and versatile way of preparing multifunctional gold nanoparticles, including examples with conjugated zinc-tetraphenylporphyrin photosensitizers. The lack of toxicity of these materials (MTT assays) is transformed on irradiation of HeLa cells for 30 minutes (PDT), leading to 75 % cell death. In addition to passive targeting, the inclusion of units capable of actively targeting overexpressed folate receptors illustrates the potential of these assemblies as targeted theranostic agents.
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Affiliation(s)
- Nicolas G Chabloz
- Department of Chemistry, Molecular Sciences Research Hub, Imperial College London, White City Campus, London, W12 0BZ, UK
| | - Hannah L Perry
- Department of Chemistry, Molecular Sciences Research Hub, Imperial College London, White City Campus, London, W12 0BZ, UK.,Division of Imaging Sciences and Biomedical Engineering, King's College London, St Thomas' Hospital, London, SE1 7EH, UK
| | - Il-Chul Yoon
- Department of Chemistry, Molecular Sciences Research Hub, Imperial College London, White City Campus, London, W12 0BZ, UK
| | - Andrew J Coulson
- Department of Chemistry, Molecular Sciences Research Hub, Imperial College London, White City Campus, London, W12 0BZ, UK
| | - Andrew J P White
- Department of Chemistry, Molecular Sciences Research Hub, Imperial College London, White City Campus, London, W12 0BZ, UK
| | - Graeme J Stasiuk
- School of Life Sciences, Biomedical Sciences, University of Hull, Hull, HU6 7RX, UK
| | - René M Botnar
- Division of Imaging Sciences and Biomedical Engineering, King's College London, St Thomas' Hospital, London, SE1 7EH, UK
| | - James D E T Wilton-Ely
- Department of Chemistry, Molecular Sciences Research Hub, Imperial College London, White City Campus, London, W12 0BZ, UK.,London Centre for Nanotechnology (LCN), London, UK
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4
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Perry HL, Botnar RM, Wilton-Ely JDET. Gold nanomaterials functionalised with gadolinium chelates and their application in multimodal imaging and therapy. Chem Commun (Camb) 2020; 56:4037-4046. [DOI: 10.1039/d0cc00196a] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
An overview of recent progress in the design of gadolinium-functionalised gold nanoparticles for use in MRI, multimodal imaging and theranostics.
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Affiliation(s)
- Hannah L. Perry
- Molecular Sciences Research Hub
- Department of Chemistry
- White City Campus
- Imperial College London
- London
| | - René M. Botnar
- School of Biomedical Engineering and Imaging Sciences
- King's College London
- London
- UK
| | - James D. E. T. Wilton-Ely
- Molecular Sciences Research Hub
- Department of Chemistry
- White City Campus
- Imperial College London
- London
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5
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Ghiassian S, Yu L, Gobbo P, Nazemi A, Romagnoli T, Luo W, Luyt LG, Workentin MS. Nitrone-Modified Gold Nanoparticles: Synthesis, Characterization, and Their Potential as 18F-Labeled Positron Emission Tomography Probes via I-SPANC. ACS OMEGA 2019; 4:19106-19115. [PMID: 31763533 PMCID: PMC6868604 DOI: 10.1021/acsomega.9b02322] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/24/2019] [Accepted: 10/28/2019] [Indexed: 05/11/2023]
Abstract
A novel bioorthogonal gold nanoparticle (AuNP) template displaying interfacial nitrone functional groups for bioorthogonal interfacial strain-promoted alkyne-nitrone cycloaddition reactions has been synthesized. These nitrone-AuNPs were characterized in detail using 1H nuclear magnetic resonance spectroscopy, transmission electron microscopy, thermogravimetric analysis, and X-ray photoelectron spectroscopy, and a nanoparticle raw formula was calculated. The ability to control the conjugation of molecules of interest at the molecular level onto the nitrone-AuNP template allowed us to create a novel methodology for the synthesis of AuNP-based radiolabeled probes.
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Affiliation(s)
- Sara Ghiassian
- Department
of Chemistry and the Center for Materials and Biomaterials
Research and Department of Oncology, The University
of Western Ontario, London N6A 5B7, Ontario, Canada
| | - Lihai Yu
- London
Regional Cancer Program, 800 Commissioners Rd. E., London N6A 5W9, Ontario, Canada
| | - Pierangelo Gobbo
- Department
of Chemistry and the Center for Materials and Biomaterials
Research and Department of Oncology, The University
of Western Ontario, London N6A 5B7, Ontario, Canada
| | - Ali Nazemi
- Department
of Chemistry and the Center for Materials and Biomaterials
Research and Department of Oncology, The University
of Western Ontario, London N6A 5B7, Ontario, Canada
| | - Tommaso Romagnoli
- Department
of Chemistry and the Center for Materials and Biomaterials
Research and Department of Oncology, The University
of Western Ontario, London N6A 5B7, Ontario, Canada
| | - Wilson Luo
- Department
of Chemistry and the Center for Materials and Biomaterials
Research and Department of Oncology, The University
of Western Ontario, London N6A 5B7, Ontario, Canada
| | - Leonard G. Luyt
- Department
of Chemistry and the Center for Materials and Biomaterials
Research and Department of Oncology, The University
of Western Ontario, London N6A 5B7, Ontario, Canada
- London
Regional Cancer Program, 800 Commissioners Rd. E., London N6A 5W9, Ontario, Canada
| | - Mark S. Workentin
- Department
of Chemistry and the Center for Materials and Biomaterials
Research and Department of Oncology, The University
of Western Ontario, London N6A 5B7, Ontario, Canada
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6
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Chabloz NG, Wenzel MN, Perry HL, Yoon IC, Molisso S, Stasiuk GJ, Elson DS, Cass AEG, Wilton-Ely JDET. Polyfunctionalised Nanoparticles Bearing Robust Gadolinium Surface Units for High Relaxivity Performance in MRI. Chemistry 2019; 25:10895-10906. [PMID: 31127668 DOI: 10.1002/chem.201901820] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2019] [Revised: 05/16/2019] [Indexed: 12/19/2022]
Abstract
The first example of an octadentate gadolinium unit based on DO3A (hydration number q=1) with a dithiocarbamate tether has been designed and attached to the surface of gold nanoparticles (around 4.4 nm in diameter). In addition to the superior robustness of this attachment, the restricted rotation of the Gd complex on the nanoparticle surface leads to a dramatic increase in relaxivity (r1 ) from 4.0 mm-1 s-1 in unbound form to 34.3 mm-1 s-1 (at 10 MHz, 37 °C) and 22±2 mm-1 s-1 (at 63.87 MHz, 25 °C) when immobilised on the surface. The one-pot synthetic route provides a straightforward and versatile way of preparing a range of multifunctional gold nanoparticles. The incorporation of additional surface units for biocompatibility (PEG and thioglucose units) and targeting (folic acid) leads to little detrimental effect on the high relaxivity observed for these non-toxic multifunctional materials. In addition to the passive targeting attributed to gold nanoparticles, the inclusion of a unit capable of targeting the folate receptors overexpressed by cancer cells, such as HeLa cells, illustrates the potential of these assemblies.
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Affiliation(s)
- Nicolas G Chabloz
- Department of Chemistry, Imperial College London, Molecular Sciences Research Hub, White City Campus, London, W12 0BZ, UK
| | - Margot N Wenzel
- Department of Chemistry, Imperial College London, Molecular Sciences Research Hub, White City Campus, London, W12 0BZ, UK
| | - Hannah L Perry
- Department of Chemistry, Imperial College London, Molecular Sciences Research Hub, White City Campus, London, W12 0BZ, UK
| | - Il-Chul Yoon
- Department of Chemistry, Imperial College London, Molecular Sciences Research Hub, White City Campus, London, W12 0BZ, UK
| | - Susannah Molisso
- Department of Chemistry, Imperial College London, Molecular Sciences Research Hub, White City Campus, London, W12 0BZ, UK
| | - Graeme J Stasiuk
- School of Life Sciences, Biomedical Sciences, University of Hull, Hull, HU6 7RX, UK
| | - Daniel S Elson
- Hamlyn Centre for Robotic Surgery, Institute of Global Health Innovation and Department of Surgery and Cancer, Imperial College London, UK
| | - Anthony E G Cass
- Department of Chemistry, Imperial College London, Molecular Sciences Research Hub, White City Campus, London, W12 0BZ, UK.,Institute of Biomedical Engineering, Imperial College London, UK.,London Centre for Nanotechnology (LCN), UK
| | - James D E T Wilton-Ely
- Department of Chemistry, Imperial College London, Molecular Sciences Research Hub, White City Campus, London, W12 0BZ, UK.,London Centre for Nanotechnology (LCN), UK
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7
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Şologan M, Padelli F, Giachetti I, Aquino D, Boccalon M, Adami G, Pengo P, Pasquato L. Functionalized Gold Nanoparticles as Contrast Agents for Proton and Dual Proton/Fluorine MRI. NANOMATERIALS (BASEL, SWITZERLAND) 2019; 9:E879. [PMID: 31200518 PMCID: PMC6631171 DOI: 10.3390/nano9060879] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/12/2019] [Revised: 06/01/2019] [Accepted: 06/07/2019] [Indexed: 12/28/2022]
Abstract
Gold nanoparticles carrying fluorinated ligands in their monolayer are, by themselves, contrast agents for 19F magnetic resonance imaging displaying high sensitivity because of the high density of fluorine nuclei achievable by grafting suitable ligands on the gold core surface. Functionalization of these nanoparticles with Gd(III) chelates allows adding a further functional activity to these systems, developing materials also acting as contrast agents for proton magnetic resonance imaging. These dual mode contrast agents may allow capitalizing on the benefits of 1H and 19F magnetic resonance imaging in a single diagnostic session. In this work, we describe a proof of principle of this approach by studying these nanoparticles in a high field preclinical scanner. The Gd(III) centers within the nanoparticles monolayer shorten considerably the 19F T1 of the ligands but, nevertheless, these systems display strong and sharp NMR signals which allow recording good quality 19F MRI phantom images at nanoparticle concentration of 20 mg/mL after proper adjustment of the imaging sequence. The Gd(III) centers also influence the T1 relaxation time of the water protons and high quality 1H MRI images could be obtained. Gold nanoparticles protected by hydrogenated ligands and decorated with Gd(III) chelates are reported for comparison as 1H MRI contrast agents.
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Affiliation(s)
- Maria Şologan
- Department of Chemical and Pharmaceutical Sciences, University of Trieste, Via L. Giorgieri 1, 34127 Trieste, Italy.
| | - Francesco Padelli
- Neuroradiology Unit, Fondazione IRCCS Istituto Neurologico Carlo Besta, 20133 Milano, Italy.
| | - Isabella Giachetti
- Neuroradiology Unit, Fondazione IRCCS Istituto Neurologico Carlo Besta, 20133 Milano, Italy.
| | - Domenico Aquino
- Neuroradiology Unit, Fondazione IRCCS Istituto Neurologico Carlo Besta, 20133 Milano, Italy.
| | - Mariangela Boccalon
- Department of Chemical and Pharmaceutical Sciences, University of Trieste, Via L. Giorgieri 1, 34127 Trieste, Italy.
| | - Gianpiero Adami
- Department of Chemical and Pharmaceutical Sciences, University of Trieste, Via L. Giorgieri 1, 34127 Trieste, Italy.
- INSTM Trieste Research Unit, Via L. Giorgieri 1, 34127 Trieste, Italy.
| | - Paolo Pengo
- Department of Chemical and Pharmaceutical Sciences, University of Trieste, Via L. Giorgieri 1, 34127 Trieste, Italy.
| | - Lucia Pasquato
- Department of Chemical and Pharmaceutical Sciences, University of Trieste, Via L. Giorgieri 1, 34127 Trieste, Italy.
- INSTM Trieste Research Unit, Via L. Giorgieri 1, 34127 Trieste, Italy.
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8
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Pretze M, van der Meulen N, Wängler C, Schibli R, Wängler B. Targeted 64
Cu-labeled gold nanoparticles for dual imaging with positron emission tomography and optical imaging. J Labelled Comp Radiopharm 2019; 62:471-482. [DOI: 10.1002/jlcr.3736] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2019] [Revised: 03/29/2019] [Accepted: 04/04/2019] [Indexed: 11/11/2022]
Affiliation(s)
- Marc Pretze
- Molecular Imaging and Radiochemistry, Department of Clinical Radiology and Nuclear Medicine, Medical Faculty Mannheim; Heidelberg University; Mannheim Germany
| | - Nick P. van der Meulen
- Laboratory of Radiochemistry (LRC), Center of Radiopharmaceutical Sciences; PSI; Villigen Switzerland
| | - Carmen Wängler
- Biomedical Chemistry, Department of Clinical Radiology and Nuclear Medicine, Medical Faculty Mannheim; Heidelberg University; Mannheim Germany
| | - Roger Schibli
- Laboratory of Radiochemistry (LRC), Center of Radiopharmaceutical Sciences; PSI; Villigen Switzerland
| | - Björn Wängler
- Molecular Imaging and Radiochemistry, Department of Clinical Radiology and Nuclear Medicine, Medical Faculty Mannheim; Heidelberg University; Mannheim Germany
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9
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Pretze M, Hien A, Rädle M, Schirrmacher R, Wängler C, Wängler B. Gastrin-Releasing Peptide Receptor- and Prostate-Specific Membrane Antigen-Specific Ultrasmall Gold Nanoparticles for Characterization and Diagnosis of Prostate Carcinoma via Fluorescence Imaging. Bioconjug Chem 2018. [PMID: 29542916 DOI: 10.1021/acs.bioconjchem.8b00067] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Gold nanoparticles (AuNPs) have widely been used for 70 years in cancer treatment, but only in the last 15 years has the focus been on specific AuNPs with homogeneous size and shape for various areas in science. They constitute a perfect platform for multifunctionalization and therefore enable the enhancement of target affinity. Here we report on the development of tumor specific AuNPs as diagnostic tools intended for the detection of prostate cancer via fluorescence imaging and positron emission tomography (PET). The AuNPs were further evaluated in vitro and in vivo and exhibited favorable diagnostic properties concerning tumor cell uptake, biodistribution, clearance, and tumor retention.
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Affiliation(s)
| | - Andreas Hien
- Institute of Process Control and Innovative Energy Conversion , Mannheim University of Applied Sciences , Mannheim 68163 , Germany
| | - Matthias Rädle
- Institute of Process Control and Innovative Energy Conversion , Mannheim University of Applied Sciences , Mannheim 68163 , Germany
| | - Ralf Schirrmacher
- Oncologic Imaging, Department of Oncology , University of Alberta , Edmonton 6820 , Alberta , Canada
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10
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Simpson EJ, Gobbo P, Bononi FC, Murrell E, Workentin MS, Luyt LG. Bombesin-functionalized water-soluble gold nanoparticles for targeting prostate cancer. ACTA ACUST UNITED AC 2017. [DOI: 10.1002/jin2.33] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Emily J. Simpson
- Western University Chemistry; 1151 Richmond Street London Ontario N6A 5B7 Canada
| | - Pierangelo Gobbo
- Western University Chemistry; 1151 Richmond Street London Ontario N6A 5B7 Canada
| | - Fernanda C. Bononi
- Western University Chemistry; 1151 Richmond Street London Ontario N6A 5B7 Canada
| | - Emily Murrell
- Western University Chemistry; 1151 Richmond Street London Ontario N6A 5B7 Canada
| | - Mark S. Workentin
- Western University Chemistry; 1151 Richmond Street London Ontario N6A 5B7 Canada
| | - Leonard G. Luyt
- Western University Chemistry; 1151 Richmond Street London Ontario N6A 5B7 Canada
- London Regional Cancer Program; Western University Oncology; 790 Commissioners Rd. E London Ontario N6A 4L6 Canada
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11
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Cao Y, Xu L, Kuang Y, Xiong D, Pei R. Gadolinium-based nanoscale MRI contrast agents for tumor imaging. J Mater Chem B 2017; 5:3431-3461. [PMID: 32264282 DOI: 10.1039/c7tb00382j] [Citation(s) in RCA: 75] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Gadolinium-based nanoscale magnetic resonance imaging (MRI) contrast agents (CAs) have gained significant momentum as a promising nanoplatform for detecting tumor tissue in medical diagnosis, due to their favorable capability of enhancing the longitudinal relaxivity (r1) of individual gadolinium ions, delivering to the region of interest a large number of gadolinium ions, and incorporating different functionalities. This mini-review highlights the latest developments and applications, and simultaneously gives some perspectives for their future development.
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Affiliation(s)
- Yi Cao
- CAS Key Laboratory of Nano-Bio Interface, Division of Nanobiomedicine, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123, China.
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12
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Weissman MR, Winger KT, Ghiassian S, Gobbo P, Workentin MS. Insights on the Application of the Retro Michael-Type Addition on Maleimide-Functionalized Gold Nanoparticles in Biology and Nanomedicine. Bioconjug Chem 2016; 27:586-93. [DOI: 10.1021/acs.bioconjchem.5b00600] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Max R. Weissman
- The University of Western Ontario and the Centre for Materials and Biomaterials Research, Richmond Street, London, Ontario N6A 5B7, Canada
| | - Kathleen T. Winger
- The University of Western Ontario and the Centre for Materials and Biomaterials Research, Richmond Street, London, Ontario N6A 5B7, Canada
| | - Sara Ghiassian
- The University of Western Ontario and the Centre for Materials and Biomaterials Research, Richmond Street, London, Ontario N6A 5B7, Canada
| | - Pierangelo Gobbo
- The University of Western Ontario and the Centre for Materials and Biomaterials Research, Richmond Street, London, Ontario N6A 5B7, Canada
| | - Mark S. Workentin
- The University of Western Ontario and the Centre for Materials and Biomaterials Research, Richmond Street, London, Ontario N6A 5B7, Canada
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13
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Alric C, Aubrey N, Allard-Vannier É, di Tommaso A, Blondy T, Dimier-Poisson I, Chourpa I, Hervé-Aubert K. Covalent conjugation of cysteine-engineered scFv to PEGylated magnetic nanoprobes for immunotargeting of breast cancer cells. RSC Adv 2016. [DOI: 10.1039/c6ra06076e] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Orientation- and site-directed covalent conjugation of cysteine-engineered scFv to PEGylated SPIONs allows antigen recognition while preserving colloidal properties of nanoprobes.
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Affiliation(s)
- Christophe Alric
- Université François Rabelais de Tours
- EA6295 ‘Nanomédicaments et Nanosondes’
- F 37200 Tours
- France
| | - Nicolas Aubrey
- Université François Rabelais de Tours
- UMR1282 INRA ‘Infectiologie et Santé Publique’
- F 37000 Tours
- France
| | - Émilie Allard-Vannier
- Université François Rabelais de Tours
- EA6295 ‘Nanomédicaments et Nanosondes’
- F 37200 Tours
- France
| | - Anne di Tommaso
- Université François Rabelais de Tours
- UMR1282 INRA ‘Infectiologie et Santé Publique’
- F 37000 Tours
- France
| | - Thibaut Blondy
- Université François Rabelais de Tours
- EA6295 ‘Nanomédicaments et Nanosondes’
- F 37200 Tours
- France
| | - Isabelle Dimier-Poisson
- Université François Rabelais de Tours
- UMR1282 INRA ‘Infectiologie et Santé Publique’
- F 37000 Tours
- France
| | - Igor Chourpa
- Université François Rabelais de Tours
- EA6295 ‘Nanomédicaments et Nanosondes’
- F 37200 Tours
- France
| | - Katel Hervé-Aubert
- Université François Rabelais de Tours
- EA6295 ‘Nanomédicaments et Nanosondes’
- F 37200 Tours
- France
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14
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Immobilization and electrocatalysis of Ru(III) ions on phosphonate functionalized gold nanoparticles. Electrochim Acta 2015. [DOI: 10.1016/j.electacta.2015.01.089] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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15
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Li Y, Duong HTT, Laurent S, MacMillan A, Whan RM, Elst LV, Muller RN, Hu J, Lowe A, Boyer C, Davis TP. Nanoparticles based on star polymers as theranostic vectors: endosomal-triggered drug release combined with MRI sensitivity. Adv Healthc Mater 2015; 4:148-56. [PMID: 24985790 DOI: 10.1002/adhm.201400164] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2014] [Revised: 05/27/2014] [Indexed: 12/12/2022]
Abstract
Dual-functional star polymers (diameters 15 nm) are synthesized producing nanoparticles with excellent colloidal stability in both water and serum. The nanoparticles are built with aldehyde groups in the core and activated esters in the arms. The different reactivity of the two functional groups to sequentially react with different amino compounds is exploited; doxorubicin (DOX) and 1-(5-amino-3-aza-2-oxypentyl)-4,7,10-tris(tert-butoxycarbonylmethyl)-1,4,7,10-tetraazacyclododecane (DO3A-tBu-NH2 )-a chelating agent effective for the complexation of Gadolinium ions (Gd). The activated ester group is employed to attach the DO3A chelating agent, while the aldehyde groups are exploited for DOX conjugation, providing a controlled release mechanism for DOX in acidic environments. DOX/Gd-loaded nanoparticles are rapidly taken up by MCF-7 breast cancer cells, subsequently releasing DOX as demonstrated using in vitro fluorescence lifetime imaging microscopy (FLIM). Endosomal, DOX release is observed, using a phasor plot representation of the fluorescence lifetime data, showing an increase of native DOX with time. The MRI properties of the stars are assessed and the relaxivity of Gd loaded in stars is three times higher than conventional organic Gd/DO3A complexes. The DOX/Gd-conjugated nanoparticles yield a similar IC50 to native DOX for breast cancer cell lines, confirming that DOX integrity is conserved during nanoparticle attachment and release.
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Affiliation(s)
- Yang Li
- Centre for Advanced Macromolecular Design (CAMD), School of Chemical Engineering; University of New South Wales; Sydney New South Wales 2052 Australia
- Australian Centre for Nanomedicine, School of Chemical Engineering; University of New South Wales; Sydney New South Wales 2052 Australia
| | - Hien T. T. Duong
- Australian Centre for Nanomedicine, School of Chemical Engineering; University of New South Wales; Sydney New South Wales 2052 Australia
| | - Sophie Laurent
- NMR and Molecular Imaging Laboratory, Department of General, Organic and Biomedical Chemistry; University of Mons; 7000 Mons Belgium
| | - Alexandre MacMillan
- Biomedical Imaging Facility; University of New South Wales; Sydney New South Wales 2052 Australia
| | - Renee Megan Whan
- Biomedical Imaging Facility; University of New South Wales; Sydney New South Wales 2052 Australia
| | - Luce Vander Elst
- NMR and Molecular Imaging Laboratory, Department of General, Organic and Biomedical Chemistry; University of Mons; 7000 Mons Belgium
| | - Robert N. Muller
- NMR and Molecular Imaging Laboratory, Department of General, Organic and Biomedical Chemistry; University of Mons; 7000 Mons Belgium
- CMMI - Center of Microscopy and Molecular Imaging; Rue Adrienne Bolland, 8 B-6041 Gosselies Belgium
| | - Jinming Hu
- ARC Centre of Excellence in Convergent Bio-Nano Science & Technology, Monash Institute of Pharmaceutical Sciences; Monash University; Parkville Victoria 3052 Australia
| | - Andrew Lowe
- Centre for Advanced Macromolecular Design (CAMD), School of Chemical Engineering; University of New South Wales; Sydney New South Wales 2052 Australia
| | - Cyrille Boyer
- Centre for Advanced Macromolecular Design (CAMD), School of Chemical Engineering; University of New South Wales; Sydney New South Wales 2052 Australia
- Australian Centre for Nanomedicine, School of Chemical Engineering; University of New South Wales; Sydney New South Wales 2052 Australia
| | - Thomas P. Davis
- ARC Centre of Excellence in Convergent Bio-Nano Science & Technology, Monash Institute of Pharmaceutical Sciences; Monash University; Parkville Victoria 3052 Australia
- Department of Chemistry; University of Warwick; Coventry CV4 7AL UK
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Gobbo P, Mossman Z, Nazemi A, Niaux A, Biesinger MC, Gillies ER, Workentin MS. Versatile strained alkyne modified water-soluble AuNPs for interfacial strain promoted azide–alkyne cycloaddition (I-SPAAC). J Mater Chem B 2014; 2:1764-1769. [DOI: 10.1039/c3tb21799j] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Versatile water-soluble AuNPs that incorporate an interfacial strained alkyne were synthesized and their reactivity towards the I-SPAAC reaction was demonstrated by using azide-decorated polymersomes as bioorthogonal reaction partners.
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Affiliation(s)
- Pierangelo Gobbo
- The University of Western Ontario and the Centre for Materials and Biomaterials Research
- London, Canada
| | - Zack Mossman
- The University of Western Ontario and the Centre for Materials and Biomaterials Research
- London, Canada
| | - Ali Nazemi
- The University of Western Ontario and the Centre for Materials and Biomaterials Research
- London, Canada
| | - Aurelia Niaux
- The University of Western Ontario and the Centre for Materials and Biomaterials Research
- London, Canada
| | - Mark C. Biesinger
- Surface Science Western
- The University of Western Ontario
- London, Canada
| | - Elizabeth R. Gillies
- The University of Western Ontario and the Centre for Materials and Biomaterials Research
- London, Canada
- Department of Chemical and Biochemical Engineering
- The University of Western Ontario
- London, Canada
| | - Mark S. Workentin
- The University of Western Ontario and the Centre for Materials and Biomaterials Research
- London, Canada
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