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Lioret V, Bellaye PS, Bernhard Y, Moreau M, Guillemin M, Drouet C, Collin B, Decréau RA. Cherenkov Radiation induced photodynamic therapy - repurposing older photosensitizers, and radionuclides. Photodiagnosis Photodyn Ther 2023; 44:103816. [PMID: 37783257 DOI: 10.1016/j.pdpdt.2023.103816] [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] [Received: 03/21/2023] [Revised: 09/22/2023] [Accepted: 09/25/2023] [Indexed: 10/04/2023]
Abstract
CONTEXT Old-generation photosensitizers are minimally used in current photodynamic therapy (PDT) because they absorb in the UV/blue/green region of the spectrum where biological tissues are generally highly absorbing. The UV/blue light of Cherenkov Radiation (CR) from nuclear disintegration of beta-emitter radionuclides shows promise as an internal light source to activate these photosensitizers within tissue. Outline of the study: 1) radionuclide choice and Cherenkov Radiation, 2) Photosensitizer choice, synthesis and radiolabeling, 3) CR-induced fluorescence, 4) Verification of ROS formation, 5) CR-induced PDT with either free eosine and free CR emitter, or with radiolabelled eosin. RESULTS Cherenkov Radiation Energy Transfer (CRET) from therapeutic radionuclides (90Y) and PET imaging radionuclides (18F, 68Ga) to eosin was shown by spectrofluorimetry and in vitro, and was shown to result in a PDT process. The feasibility of CR-induced PDT (CR-PDT) was demonstrated in vitro on B16F10 murine melanoma cells mixing free eosin (λabs = 524 nm, ΦΔ 0.67) with free CR-emitter [18F]-FDG under their respective intrinsic toxicity levels (0.5 mM/8 MBq) and by trapping singlet oxygen with diphenylisobenzofuran (DPBF). An eosin-DOTAGA-chelate conjugate 1 was synthesized and radiometallated with CR-emitter [68Ga] allowed to reach 25 % cell toxicity at 0.125 mM/2 MBq, i.e. below the toxicity threshold of each component measured on controls. Incubation time was carefully examined, especially for CR emitters, in light of its toxicity, and its CR-emitting yield expected to be 3 times as much for 68Ga than 18F (considering their β particle energy) per radionuclide decay, while its half-life is about twice as small. PERSPECTIVE This study showed that in complete darkness, as it is at depth in tissues, PDT could proceed relying on CR emission from radionuclides only. Interestingly, this study also repurposed PET imaging radionuclides, such as 68Ga, to trigger a therapeutic event (PDT), albeit in a modest extent. Moreover, although it remains modest, such a PDT approach may be used to achieve additional tumoricidal effect to RIT treatment, where radionuclides, such as 90Y, are strong CR emitters, i.e. very potent light source for photosensitizer activation.
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Affiliation(s)
- Vivian Lioret
- ICMUB Institute (Chemistry Department) Sciences Mirande, Université de Bourgogne Franche Comté, 9 Avenue Alain Savary, Dijon 21078, France
| | | | - Yann Bernhard
- ICMUB Institute (Chemistry Department) Sciences Mirande, Université de Bourgogne Franche Comté, 9 Avenue Alain Savary, Dijon 21078, France
| | - Mathieu Moreau
- ICMUB Institute (Chemistry Department) Sciences Mirande, Université de Bourgogne Franche Comté, 9 Avenue Alain Savary, Dijon 21078, France
| | - Mélanie Guillemin
- Centre George François Leclerc, 1 rue du Professeur Marion, Dijon 21079, France
| | - Camille Drouet
- Centre George François Leclerc, 1 rue du Professeur Marion, Dijon 21079, France
| | - Bertrand Collin
- ICMUB Institute (Chemistry Department) Sciences Mirande, Université de Bourgogne Franche Comté, 9 Avenue Alain Savary, Dijon 21078, France; Centre George François Leclerc, 1 rue du Professeur Marion, Dijon 21079, France
| | - Richard A Decréau
- ICMUB Institute (Chemistry Department) Sciences Mirande, Université de Bourgogne Franche Comté, 9 Avenue Alain Savary, Dijon 21078, France.
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Mc Larney B, Skubal M, Grimm J. A review of recent and emerging approaches for the clinical application of Cerenkov luminescence imaging. FRONTIERS IN PHYSICS 2021; 9:684196. [PMID: 36845872 PMCID: PMC9957555 DOI: 10.3389/fphy.2021.684196] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Cerenkov luminescence (CL) is a blue-weighted emission of light produced by a vast array of clinically approved radioisotopes and LINAC accelerators. When β particles (emitted during the decay of radioisotopes) are present in a medium such as water or tissue, they are able to travel faster than the speed of light in that medium and in doing so polarize the molecules around them. Once the particle has left the local area, the polarized molecules relax and return to their baseline state releasing the additional energy as light (luminescence). This blue glow has commonly been used to determine the output of nuclear power plant cores and, in recent years, has found traction in the preclinical and clinical imaging field. This brief review will discuss the technology which has enabled the emergence of the biomedical Cerenkov imaging field, recent pre-clinical studies with potential clinical translation of Cerenkov luminescence imaging (CLI) and the current clinical implementations of the method. Finally, an outlook is given as to the direction in which the field is heading.
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Affiliation(s)
- Benedict Mc Larney
- Molecular Pharmacology Program, Memorial Sloan Kettering Cancer Center, New York, NY, USA
- Department of Radiology, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Magdalena Skubal
- Molecular Pharmacology Program, Memorial Sloan Kettering Cancer Center, New York, NY, USA
- Department of Radiology, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Jan Grimm
- Molecular Pharmacology Program, Memorial Sloan Kettering Cancer Center, New York, NY, USA
- Department of Radiology, Memorial Sloan Kettering Cancer Center, New York, NY, USA
- Department of Pharmacology, Weill Cornell Medical College, New York, NY, USA
- Department of Radiology, Weill Cornell Medical College, New York, NY, USA
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Pogue BW, Zhang R, Cao X, Jia JM, Petusseau A, Bruza P, Vinogradov SA. Review of in vivo optical molecular imaging and sensing from x-ray excitation. JOURNAL OF BIOMEDICAL OPTICS 2021; 26:JBO-200308VR. [PMID: 33386709 PMCID: PMC7778455 DOI: 10.1117/1.jbo.26.1.010902] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/21/2020] [Accepted: 11/24/2020] [Indexed: 05/05/2023]
Abstract
SIGNIFICANCE Deep-tissue penetration by x-rays to induce optical responses of specific molecular reporters is a new way to sense and image features of tissue function in vivo. Advances in this field are emerging, as biocompatible probes are invented along with innovations in how to optimally utilize x-ray sources. AIM A comprehensive review is provided of the many tools and techniques developed for x-ray-induced optical molecular sensing, covering topics ranging from foundations of x-ray fluorescence imaging and x-ray tomography to the adaptation of these methods for sensing and imaging in vivo. APPROACH The ways in which x-rays can interact with molecules and lead to their optical luminescence are reviewed, including temporal methods based on gated acquisition and multipoint scanning for improved lateral or axial resolution. RESULTS While some known probes can generate light upon x-ray scintillation, there has been an emergent recognition that excitation of molecular probes by x-ray-induced Cherenkov light is also possible. Emission of Cherenkov radiation requires a threshold energy of x-rays in the high kV or MV range, but has the advantage of being able to excite a broad range of optical molecular probes. In comparison, most scintillating agents are more readily activated by lower keV x-ray energies but are composed of crystalline inorganic constituents, although some organic biocompatible agents have been designed as well. Methods to create high-resolution structured x-ray-optical images are now available, based upon unique scanning approaches and/or a priori knowledge of the scanned x-ray beam geometry. Further improvements in spatial resolution can be achieved by careful system design and algorithm optimization. Current applications of these hybrid x-ray-optical approaches include imaging of tissue oxygenation and pH as well as of certain fluorescent proteins. CONCLUSIONS Discovery of x-ray-excited reporters combined with optimized x-ray scan sequences can improve imaging resolution and sensitivity.
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Affiliation(s)
- Brian W. Pogue
- Thayer School of Engineering at Dartmouth, Hanover, New Hampshire, United States
- Geisel School of Medicine at Dartmouth, Lebanon, New Hampshire, United States
| | - Rongxiao Zhang
- Thayer School of Engineering at Dartmouth, Hanover, New Hampshire, United States
- Geisel School of Medicine at Dartmouth, Lebanon, New Hampshire, United States
| | - Xu Cao
- Thayer School of Engineering at Dartmouth, Hanover, New Hampshire, United States
| | - Jeremy Mengyu Jia
- Stanford University School of Medicine, Department of Radiation Oncology, Palo Alto, California, United States
| | - Arthur Petusseau
- Thayer School of Engineering at Dartmouth, Hanover, New Hampshire, United States
| | - Petr Bruza
- Thayer School of Engineering at Dartmouth, Hanover, New Hampshire, United States
| | - Sergei A. Vinogradov
- University of Pennsylvania, Perelman School of Medicine, Department of Biochemistry and Biophysics, Philadelphia, Pennsylvania, United States
- University of Pennsylvania, School of Arts of Sciences, Department of Chemistry, Philadelphia, Pennsylvania, United States
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Blum NT, Zhang Y, Qu J, Lin J, Huang P. Recent Advances in Self-Exciting Photodynamic Therapy. Front Bioeng Biotechnol 2020; 8:594491. [PMID: 33195164 PMCID: PMC7606875 DOI: 10.3389/fbioe.2020.594491] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2020] [Accepted: 09/07/2020] [Indexed: 12/21/2022] Open
Abstract
Photodynamic therapy (PDT) is already (Food and Drug Administration) FDA approved and used in the clinic for oncological treatment of pancreatic, lung, esophagus, bile duct, and of course several cancers of skin. It is an important tool in the oncological array of treatments, but for it exist several shortcomings, the most prominent of which is the shallow depth penetration of light within tissues. One-way researchers have attempted to circumvent this is through the creation of self-exciting "auto-PDT" nanoplatforms, which do not require the presence of an external light source to drive the PDT process. Instead, these platforms are driven either through oxidative chemical excitation in the form of chemiluminescence or radiological excitation from beta-emitting isotopes in the form of Cherenkov luminescence. In both, electronic excitations are generated and then transferred to the photosensitizer (PS) via Resonance Energy Transfer (RET) or Cherenkov Radiation Energy Transfer (CRET). Self-driven PDT has many components, so in this review, using contemporary examples from literature, we will breakdown the important concepts, strategies, and rationale behind the design of these self-propagating PDT nanoplatforms and critically review the aspects which make them successful and different from conventional PDT. Particular focus is given to the mechanisms of excitation and the different methods of transfer of excited electronic energy to the photosensitizer as well as the resulting therapeutic effect. The papers reviewed herein will be critiqued for their apparent therapeutic efficiency, and a basic rationale will be developed for what qualities are necessary to constitute an "effective" auto-PDT platform. This review will take a biomaterial engineering approach to the review of the auto-PDT platforms and the intended audience includes researchers in the field looking for a new perspective on PDT nanoplatforms as well as other material scientists and engineers looking to understand the mechanisms and relations between different parts of the complex "auto-PDT" system.
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Affiliation(s)
- Nicholas Thomas Blum
- Marshall Laboratory of Biomedical Engineering, Laboratory of Evolutionary Theranostics (LET), International Cancer Center, School of Biomedical Engineering, Shenzhen University Health Science Center, Shenzhen, China.,Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Optoelectronic Engineering, Shenzhen University, Shenzhen, China
| | - Yifan Zhang
- Marshall Laboratory of Biomedical Engineering, Laboratory of Evolutionary Theranostics (LET), International Cancer Center, School of Biomedical Engineering, Shenzhen University Health Science Center, Shenzhen, China
| | - Junle Qu
- Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Optoelectronic Engineering, Shenzhen University, Shenzhen, China
| | - Jing Lin
- Marshall Laboratory of Biomedical Engineering, Laboratory of Evolutionary Theranostics (LET), International Cancer Center, School of Biomedical Engineering, Shenzhen University Health Science Center, Shenzhen, China
| | - Peng Huang
- Marshall Laboratory of Biomedical Engineering, Laboratory of Evolutionary Theranostics (LET), International Cancer Center, School of Biomedical Engineering, Shenzhen University Health Science Center, Shenzhen, China
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Lioret V, Bellaye PS, Arnould C, Collin B, Decréau RA. Dual Cherenkov Radiation-Induced Near-Infrared Luminescence Imaging and Photodynamic Therapy toward Tumor Resection. J Med Chem 2020; 63:9446-9456. [PMID: 32706253 DOI: 10.1021/acs.jmedchem.0c00625] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Cherenkov radiation (CR), the blue light seen in nuclear reactors, is emitted by some radiopharmaceuticals. This study showed that (1) a portion of CR could be transferred in the region of the optical spectrum, where biological tissues are most transparent: as a result, upon radiance amplification in the near-infrared window, the detection of light could occur twice deeper in tissues than during classical Cherenkov luminescence imaging and (2) Cherenkov-photodynamic therapy (CR-PDT) on cells could be achieved under conditions mimicking unlimited depth using the CR-embarked light source, which is unlike standard PDT, where light penetration depth is limited in biological tissues. Both results are of utmost importance for simultaneous applications in tumor resection and post-resection treatment of remaining unresected margins, thanks to a molecular construct designed to raise its light collection efficiency (i.e., CR energy transfer) by conjugation with multiple CR-absorbing (water-soluble) antenna followed by intramolecular-FRET/TBET energy transfers.
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Affiliation(s)
- Vivian Lioret
- ICMUB Institute (Chemistry Department) Sciences Mirande, Université de Bourgogne Franche Comté, 9 Avenue Alain Savary, Dijon 21078, France
| | | | | | - Bertrand Collin
- Centre George François Leclerc, 1 rue du Professeur Marion, Dijon 21079, France
| | - Richard A Decréau
- ICMUB Institute (Chemistry Department) Sciences Mirande, Université de Bourgogne Franche Comté, 9 Avenue Alain Savary, Dijon 21078, France
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In vitro irradiation of doxorubicin with 18F-FDG Cerenkov radiation and its potential application as a theragnostic system. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2020; 210:111961. [PMID: 32736225 DOI: 10.1016/j.jphotobiol.2020.111961] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/08/2020] [Revised: 06/18/2020] [Accepted: 07/12/2020] [Indexed: 01/10/2023]
Abstract
Doxorubicin (DOX), an effective chemotherapeutic agent, has a wide excitation band centred at 480 nm. Cerenkov radiation (CR) is considered an internal light source in photodynamic therapy (PDT). DOX could be photoactivated by CR and thus, enhancing its cytotoxicity. In this work, 18F-FDG was used to evaluate the effect of Cerenkov radiation on DOX, in comparison to irradiation with a 450-nm laser beam, in terms of ROS production. The production of 1O2 and O2⁎- reactive species during DOX irradiation was detected indirectly by ABMA and DCPIP bleaching, respectively. The cytotoxic effect of the DOX / 18F-FDG CR system was evaluated in the T47D breast cancer cell line. The irradiation of DOX produced 1O2 and O2⁎- species using both 18F-FDG CR and a 450-nm laser beam. The majority reactive species produced in both cases was 1O2; a favourable result, given the greater cytotoxicity of this species. The viability of T47D cells in presence of DOX (5 nM), 18F-FDG (37.5 μCi) and DOX (5 nM)/18F-FDG (37.5 μCi) was (86 ± 9)%, (84 ± 8)% and (64 ± 5)%, respectively; these results suggest a synergistic cytotoxic effect derived from the cytotoxic activity of DOX and its photoactivation by 18F-FDG CR. It is worth noting that the system could be optimized in terms of DOX concentration and 18F-FDG activity for better results. Due to the fact that 18F-FDG is widely used in nuclear imaging, the DOX/18F-FDG system also possesses theragnostic characteristics. Thus, in this work, it is demonstrated that DOX can be used in a dual therapy system based on chemotherapy-PDT when 18F-FDG CR is used as a DOX excitation source.
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Genovese D, Petrizza L, Prodi L, Rampazzo E, De Sanctis F, Spinelli AE, Boschi F, Zaccheroni N. Tandem Dye-Doped Nanoparticles for NIR Imaging via Cerenkov Resonance Energy Transfer. Front Chem 2020; 8:71. [PMID: 32175305 PMCID: PMC7056810 DOI: 10.3389/fchem.2020.00071] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2019] [Accepted: 01/22/2020] [Indexed: 11/13/2022] Open
Abstract
The detection of the Cerenkov radiation (CR) is an emerging preclinical imaging technique which allows monitoring the in vivo distribution of radionuclides. Among its possible advantages, the most interesting is the simplicity and cost of the required instrumentation compared, e.g., to that required for PET scans. On the other hand, one of its main drawbacks is related to the fact that CR, presenting the most intense component in the UV-vis region, has a very low penetration in biological tissues. To address this issue, we present here multifluorophoric silica nanoparticles properly designed to efficiently absorb the CR radiation and to have a quite high fluorescence quantum yield (0.12) at 826 nm. Thanks to a highly efficient series of energy transfer processes, each nanoparticle can convert part of the CR into NIR light, increasing its detection even under 1.0-cm thickness of muscle.
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Affiliation(s)
- Damiano Genovese
- Department of Chemistry "Giacomo Ciamician", University of Bologna, Bologna, Italy
| | - Luca Petrizza
- Department of Chemistry "Giacomo Ciamician", University of Bologna, Bologna, Italy
| | - Luca Prodi
- Department of Chemistry "Giacomo Ciamician", University of Bologna, Bologna, Italy
| | - Enrico Rampazzo
- Department of Chemistry "Giacomo Ciamician", University of Bologna, Bologna, Italy
| | - Francesco De Sanctis
- Immunologic Section, Department of Medicine, Policlinico G.B. Rossi, Verona, Italy
| | | | - Federico Boschi
- Department of Computer Science, University of Verona, Verona, Italy
| | - Nelsi Zaccheroni
- Department of Chemistry "Giacomo Ciamician", University of Bologna, Bologna, Italy
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Ferreira CA, Ni D, Rosenkrans ZT, Cai W. Radionuclide-Activated Nanomaterials and Their Biomedical Applications. Angew Chem Int Ed Engl 2019; 58:13232-13252. [PMID: 30779286 PMCID: PMC6698437 DOI: 10.1002/anie.201900594] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2019] [Indexed: 02/06/2023]
Abstract
Radio-nanomedicine, or the use of radiolabeled nanoparticles in nuclear medicine, has attracted much attention in the last few decades. Since the discovery of Cerenkov radiation and its employment in Cerenkov luminescence imaging, the combination of nanomaterials and Cerenkov radiation emitters has been revolutionizing the way nanomaterials are perceived in the field: from simple inert carriers of radioactivity to activatable nanomaterials for both diagnostic and therapeutic applications. Herein, we provide a comprehensive review on the types of nanomaterials that have been used to interact with Cerenkov radiation and the gamma and beta scintillation of radionuclides, as well as on their biological applications.
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Affiliation(s)
- Carolina A. Ferreira
- Departments of Radiology, Biomedical Engineering, and Medical Physics, University of Wisconsin – Madison, Madison, Wisconsin 53705, United States
| | - Dalong Ni
- Departments of Radiology, Biomedical Engineering, and Medical Physics, University of Wisconsin – Madison, Madison, Wisconsin 53705, United States
| | - Zachary T. Rosenkrans
- Departments of Radiology, Biomedical Engineering, and Medical Physics, University of Wisconsin – Madison, Madison, Wisconsin 53705, United States
| | - Weibo Cai
- Departments of Radiology, Biomedical Engineering, and Medical Physics, University of Wisconsin – Madison, Madison, Wisconsin 53705, United States
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Ferreira CA, Ni D, Rosenkrans ZT, Cai W. Radionuklidaktivierte Nanomaterialien und ihre biomedizinische Anwendung. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201900594] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Carolina A. Ferreira
- Departments of Radiology, Biomedical Engineering, and Medical PhysicsUniversity of Wisconsin – Madison Madison Wisconsin 53705 USA
| | - Dalong Ni
- Departments of Radiology, Biomedical Engineering, and Medical PhysicsUniversity of Wisconsin – Madison Madison Wisconsin 53705 USA
| | - Zachary T. Rosenkrans
- Departments of Radiology, Biomedical Engineering, and Medical PhysicsUniversity of Wisconsin – Madison Madison Wisconsin 53705 USA
| | - Weibo Cai
- Departments of Radiology, Biomedical Engineering, and Medical PhysicsUniversity of Wisconsin – Madison Madison Wisconsin 53705 USA
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Desvaux E, Courteau A, Bellaye PS, Guillemin M, Drouet C, Walker P, Collin B, Decréau RA. Cherenkov luminescence imaging is a fast and relevant preclinical tool to assess tumour hypoxia in vivo. EJNMMI Res 2018; 8:111. [PMID: 30574662 PMCID: PMC6301908 DOI: 10.1186/s13550-018-0464-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2018] [Accepted: 12/03/2018] [Indexed: 11/10/2022] Open
Abstract
PURPOSE Molecular imaging techniques visualise biomarkers for both drug development and personalised medicine. In this field, Cherenkov luminescence imaging (CLI) seems to be very attractive by allowing imaging with clinical PET radiotracers with high-throughput capabilities. In this context, we developed a fast CLI method to detect tumour hypoxia with 18F-fluoromisonidazole (FMISO) for drug development purposes. METHODS Colon cancer model was induced in mice by subcutaneous injection of 1 × 106 CT-26 cells. FMISO was injected, and simultaneous PET-blood oxygen level dependent (BOLD)-MRI followed by CLI were performed along with immunohistochemistry staining with pimonidazole. RESULTS There was a significant correlation between FMISO PET and CLI tumour uptakes, consistent with the BOLD-MRI mapping. Tumour-to-background ratio was significantly higher for CLI compared with PET and MRI. Immunohistochemistry confirmed tumour hypoxia. The imaging workflow with CLI was about eight times faster than the PET-MRI procedure. CONCLUSION CLI is a fast and relevant tool to assess tumour hypoxia. This approach could be particularly interesting for hypoxia-targeting drug development.
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Affiliation(s)
- Emiko Desvaux
- Centre George François Leclerc (CGFL), 1 rue du Professeur Marion, 21079, Dijon, France
| | - Alan Courteau
- Centre George François Leclerc (CGFL), 1 rue du Professeur Marion, 21079, Dijon, France
| | - Pierre-Simon Bellaye
- Centre George François Leclerc (CGFL), 1 rue du Professeur Marion, 21079, Dijon, France
| | - Mélanie Guillemin
- Centre George François Leclerc (CGFL), 1 rue du Professeur Marion, 21079, Dijon, France
| | - Camille Drouet
- Centre George François Leclerc (CGFL), 1 rue du Professeur Marion, 21079, Dijon, France
| | - Paul Walker
- Université Bourgogne Franche Comté, CNRS, Laboratoire Electronique Informatique & Image (Le2i), UMR, 6306, Dijon, France.,Université Hospital Francois Mitterrand, Dijon, France
| | - Bertrand Collin
- Centre George François Leclerc (CGFL), 1 rue du Professeur Marion, 21079, Dijon, France.,Institut de Chimie Moléculaire de l'Université de Bourgogne (ICMUB), 9 Avenue Alain Savary, 21078, Dijon, France
| | - Richard A Decréau
- Institut de Chimie Moléculaire de l'Université de Bourgogne (ICMUB), 9 Avenue Alain Savary, 21078, Dijon, France.
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Ha YS, Lee W, Jung JM, Soni N, Pandya DN, An GI, Sarkar S, Lee WK, Yoo J. Visualization and Quantification of Radiochemical Purity by Cerenkov Luminescence Imaging. Anal Chem 2018; 90:8927-8935. [PMID: 29991252 DOI: 10.1021/acs.analchem.8b01098] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Determination of radiochemical purity is essential for characterization of all radioactive compounds, including clinical radiopharmaceuticals. Radio-thin layer chromatography (radio-TLC) has been used as the gold standard for measurement of radiochemical purity; however, this method has several limitations in terms of sensitivity, spatial resolution, two-dimensional scanning, and quantification accuracy. Here, we report a new analytical technique for determination of radiochemical purity based on Cerenkov luminescence imaging (CLI), whereby entire TLC plates are visualized by detection of Cerenkov radiation. Sixteen routinely used TLC plates were tested in combination with three different radioisotopes (131I, 124I, and 32P). All TLC plates doped with a fluorescent indicator showed excellent detection sensitivity with scanning times of less than 1 min. The new CLI method was superior to the traditional radio-TLC scanning method in terms of sensitivity, scanning time, spatial resolution, and two-dimensional scanning. The CLI method also showed better quantification features across a wider range of radioactivity values compared with radio-TLC and classical zonal analysis, especially for β--emitters such as 131I and 32P.
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Affiliation(s)
- Yeong Su Ha
- Department of Molecular Medicine, BK21 Plus KNU Biomedical Convergence Program, School of Medicine , Kyungpook National University , Daegu , North Gyeongsang 41944 , Korea
| | - Woonghee Lee
- Department of Molecular Medicine, BK21 Plus KNU Biomedical Convergence Program, School of Medicine , Kyungpook National University , Daegu , North Gyeongsang 41944 , Korea
| | - Jung-Min Jung
- Department of Molecular Medicine, BK21 Plus KNU Biomedical Convergence Program, School of Medicine , Kyungpook National University , Daegu , North Gyeongsang 41944 , Korea
| | - Nisarg Soni
- Department of Molecular Medicine, BK21 Plus KNU Biomedical Convergence Program, School of Medicine , Kyungpook National University , Daegu , North Gyeongsang 41944 , Korea
| | - Darpan N Pandya
- Department of Molecular Medicine, BK21 Plus KNU Biomedical Convergence Program, School of Medicine , Kyungpook National University , Daegu , North Gyeongsang 41944 , Korea
| | - Gwang Il An
- Molecular Imaging Research Center , Korea Institute of Radiological and Medical Sciences , Seoul 01812 , Korea
| | - Swarbhanu Sarkar
- Department of Molecular Medicine, BK21 Plus KNU Biomedical Convergence Program, School of Medicine , Kyungpook National University , Daegu , North Gyeongsang 41944 , Korea
| | - Won Kee Lee
- Medical Research Collabration Center in Kyungpook National University Hospital and School of Medicine, Kyungpook National University , Daegu , North Gyeongsang 41944 , Korea
| | - Jeongsoo Yoo
- Department of Molecular Medicine, BK21 Plus KNU Biomedical Convergence Program, School of Medicine , Kyungpook National University , Daegu , North Gyeongsang 41944 , Korea
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Masuda T, Kataoka J, Arimoto M, Takabe M, Nishio T, Matsushita K, Miyake T, Yamamoto S, Inaniwa T, Toshito T. Measurement of nuclear reaction cross sections by using Cherenkov radiation toward high-precision proton therapy. Sci Rep 2018; 8:2570. [PMID: 29416102 PMCID: PMC5803244 DOI: 10.1038/s41598-018-20906-z] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2017] [Accepted: 01/25/2018] [Indexed: 01/22/2023] Open
Abstract
Monitoring the in vivo dose distribution in proton therapy is desirable for the accurate irradiation of a tumor. Although positron emission tomography (PET) is widely used for confirmation, the obtained distribution of positron emitters produced by the protons does not trace the dose distribution due to the different physical processes. To estimate the accurate dose from the PET image, the cross sections of nuclear reactions that produce positron emitters are important yet far from being sufficient. In this study, we measured the cross sections of 16O(p,x)15O, 16O(p,x)13N, and 16O(p,x)11C with a wide-energy range (approximately 5–70 MeV) by observing the temporal evolution of the Cherenkov radiation emitted from positrons generated via β+ decay along the proton path. Furthermore, we implemented the new cross sectional data into a conventional Monte Carlo (MC) simulation, so that a direct comparison was possible with the PET measurement. We confirmed that our MC results showed good agreement with the experimental data, both in terms of the spatial distributions and temporal evolutions. Although this is the first attempt at using the Cherenkov radiation in the measurements of nuclear cross sections, the obtained results suggest the method is convenient and widely applicable for high precision proton therapy.
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Affiliation(s)
- Takamitsu Masuda
- Graduate School of Advanced Science and Engineering, Waseda University, Tokyo, Japan. .,Department of Medical Physics, Tokyo Women's Medical University, Tokyo, Japan.
| | - Jun Kataoka
- Graduate School of Advanced Science and Engineering, Waseda University, Tokyo, Japan
| | - Makoto Arimoto
- Graduate School of Advanced Science and Engineering, Waseda University, Tokyo, Japan
| | - Miho Takabe
- Graduate School of Advanced Science and Engineering, Waseda University, Tokyo, Japan
| | - Teiji Nishio
- Department of Medical Physics, Tokyo Women's Medical University, Tokyo, Japan
| | | | - Tasuku Miyake
- Graduate School of Science, Rikkyo University, Tokyo, Japan
| | | | - Taku Inaniwa
- National Institute of Radiological Sciences, QST, Department of Accelerator and Medical Physics, Chiba, Japan
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Radionuclides transform chemotherapeutics into phototherapeutics for precise treatment of disseminated cancer. Nat Commun 2018; 9:275. [PMID: 29348537 PMCID: PMC5773683 DOI: 10.1038/s41467-017-02758-9] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2017] [Accepted: 12/21/2017] [Indexed: 12/27/2022] Open
Abstract
Most cancer patients succumb to disseminated disease because conventional systemic therapies lack spatiotemporal control of their toxic effects in vivo, particularly in a complicated milieu such as bone marrow where progenitor stem cells reside. Here, we demonstrate the treatment of disseminated cancer by photoactivatable drugs using radiopharmaceuticals. An orthogonal-targeting strategy and a contact-facilitated nanomicelle technology enabled highly selective delivery and co-localization of titanocene and radiolabelled fluorodeoxyglucose in disseminated multiple myeloma cells. Selective ablation of the cancer cells was achieved without significant off-target toxicity to the resident stem cells. Genomic, proteomic and multimodal imaging analyses revealed that the downregulation of CD49d, one of the dimeric protein targets of the nanomicelles, caused therapy resistance in small clusters of cancer cells. Similar treatment of a highly metastatic breast cancer model using human serum albumin-titanocene formulation significantly inhibited cancer growth. This strategy expands the use of phototherapy for treating previously inaccessible metastatic disease.
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14
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Zhang Y, Wang J, Nan F, Wang QQ. Synthesis of gold nanorod/neodymium oxide yolk/shell composite with plasmon-enhanced near-infrared luminescence. RSC Adv 2018; 8:20056-20060. [PMID: 35541665 PMCID: PMC9080765 DOI: 10.1039/c8ra01342j] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2018] [Accepted: 05/17/2018] [Indexed: 01/08/2023] Open
Abstract
A yolk/shell composite consisting of an AuNR core and an Nd2O3 shell with a 19 nm gap is synthesized by a multi-step over-growth method. The near-infrared luminescence of AuNR@Nd2O3 is up to 4.6 times higher than that of Nd2O3 hollow nanoparticles. The underlying mechanism of plasmon-induced luminescence enhancement is further investigated. AuNR@Nd2O3 yolk/shell nanocomposites are synthesized by a hydrothermal method; the luminescence of Nd3+ is enhanced 4.6 times by AuNRs.![]()
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Affiliation(s)
- Yafang Zhang
- School of Physics and Technology
- University of Jinan
- Jinan
- P. R. China
- School of Physics and Technology
| | - Jiahong Wang
- School of Physics and Technology
- Wuhan University
- Wuhan
- P. R. China
- Shenzhen Institutes of Advanced Technology
| | - Fan Nan
- School of Physics and Technology
- Wuhan University
- Wuhan
- P. R. China
- Department of Chemical and Biomolecular Engineering
| | - Qu-Quan Wang
- School of Physics and Technology
- Wuhan University
- Wuhan
- P. R. China
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