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Fragoso Costa P, Shi K, Holm S, Vidal-Sicart S, Kracmerova T, Tosi G, Grimm J, Visvikis D, Knapp WH, Gnanasegaran G, van Leeuwen FWB. Surgical radioguidance with beta-emitting radionuclides; challenges and possibilities: A position paper by the EANM. Eur J Nucl Med Mol Imaging 2024:10.1007/s00259-023-06560-2. [PMID: 38189911 DOI: 10.1007/s00259-023-06560-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2023] [Accepted: 12/01/2023] [Indexed: 01/09/2024]
Abstract
Radioguidance that makes use of β-emitting radionuclides is gaining in popularity and could have potential to strengthen the range of existing radioguidance techniques. While there is a strong tendency to develop new PET radiotracers, due to favorable imaging characteristics and the success of theranostics research, there are practical challenges that need to be overcome when considering use of β-emitters for surgical radioguidance. In this position paper, the EANM identifies the possibilities and challenges that relate to the successful implementation of β-emitters in surgical guidance, covering aspects related to instrumentation, radiation protection, and modes of implementation.
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Affiliation(s)
- Pedro Fragoso Costa
- Department of Nuclear Medicine, University Hospital Essen, West German Cancer Center (WTZ), University of Duisburg-Essen, Essen, Germany.
| | - Kuangyu Shi
- Department of Nuclear Medicine, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
- Computer Aided Medical Procedures and Augmented Reality, Institute of Informatics I16, Technical University of Munich, Munich, Germany
| | - Soren Holm
- Department of Clinical Physiology, Nuclear Medicine and PET, Rigshospitalet, University Hospital Copenhagen, Copenhagen, Denmark
| | - Sergi Vidal-Sicart
- Nuclear Medicine Department, Hospital Clinic Barcelona, Barcelona, Spain
| | - Tereza Kracmerova
- Department of Medical Physics, Motol University Hospital, Prague, Czech Republic
| | - Giovanni Tosi
- Department of Medical Physics, Ospedale U. Parini, Aosta, Italy
| | - 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
| | | | - Wolfram H Knapp
- Department of Nuclear Medicine, Medizinische Hochschule Hannover, Hannover, Germany
| | - Gopinath Gnanasegaran
- Institute of Nuclear Medicine, University College London Hospital, Tower 5, 235 Euston Road, London, NW1 2BU, UK
- Royal Free London NHS Foundation Trust Hospital, London, UK
| | - Fijs W B van Leeuwen
- Interventional Molecular Imaging Laboratory, Department of Radiology, Leiden University Medical Center, Leiden, the Netherlands
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Vivier D, Hautière M, Pineau D, Dancer PA, Herbet A, Hugnot JP, Bernhard C, Goncalves V, Truillet C, Boquet D, Denat F. Synthesis and Preclinical Fluorescence Imaging of Dually Functionalized Antibody Conjugates Targeting Endothelin Receptor-Positive Tumors. Bioconjug Chem 2023; 34:2144-2153. [PMID: 37931154 DOI: 10.1021/acs.bioconjchem.3c00445] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2023]
Abstract
For the past two decades, the emerging role of the endothelin (ET) axis in cancer has been extensively investigated, and its involvement in several mechanisms described as "hallmarks of cancer" has clearly highlighted its potential as a therapeutic target. Despite the growing interest in finding effective anticancer drugs, no breakthrough treatment has successfully made its way to the market. Recently, our team reported the development of a new immuno-positron emission tomography probe targeting the ET A receptor (ETA, one of the ET receptors) that allows the successful detection of ETA+ glioblastoma, paving the way for the elaboration of novel antibody-based strategies. In this study, we describe the synthesis of two PET/NIRF (positron emission tomography/near-infrared fluorescence) dually functionalized imaging agents, directed against ETA or ETB, that could be used to detect ET+ tumors and select patients that will be eligible for fluorescence-guided surgery. Both imaging modalities were brought together using a highly versatile tetrazine platform bearing the IRDye800CW fluorophore and desferrioxamine for 89Zr chelation. This so-called monomolecular multimodal imaging probe was then "clicked", via an inverse-electron-demand Diels-Alder reaction, to antibodies conjugated site-specifically with a trans-cyclooctene group. This approach has led to homogeneous and well-defined constructs that retained their high affinity and high specificity for their respective target, as shown by flow cytometry and NIRF in vivo imaging experiments in nude mice bearing CHO-ETA and CHO-ETB tumors. Ultimately, these bimodal immunoconjugates could be used to improve the outcomes of patients with ET+ tumors.
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Affiliation(s)
- Delphine Vivier
- Université de Bourgogne, ICMUB UMR CNRS 6302, 21000 Dijon, France
| | - Marie Hautière
- Université Paris-Saclay, CEA, DMTS, SPI, 91191 Gif-sur-Yvette, France
- Université Paris-Saclay, CEA, CNRS, Inserm, BioMaps, 91401 Orsay, France
| | - Donovan Pineau
- Université de Montpellier, IGF, INSERM U 1191-CNRS UMR 5203, 34094 Montpellier, France
| | | | - Amaury Herbet
- Université Paris-Saclay, CEA, DMTS, SPI, 91191 Gif-sur-Yvette, France
| | - Jean-Philippe Hugnot
- Université de Montpellier, IGF, INSERM U 1191-CNRS UMR 5203, 34094 Montpellier, France
| | - Claire Bernhard
- Université de Bourgogne, ICMUB UMR CNRS 6302, 21000 Dijon, France
| | - Victor Goncalves
- Université de Bourgogne, ICMUB UMR CNRS 6302, 21000 Dijon, France
| | - Charles Truillet
- Université Paris-Saclay, CEA, CNRS, Inserm, BioMaps, 91401 Orsay, France
| | - Didier Boquet
- Université Paris-Saclay, CEA, DMTS, SPI, 91191 Gif-sur-Yvette, France
| | - Franck Denat
- Université de Bourgogne, ICMUB UMR CNRS 6302, 21000 Dijon, France
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Lwin TM, Minnix M, Li L, Sherman A, Hong T, Wong JYC, Olafsen T, Poku E, Bouvet M, Fong Y, Shively JE, Yazaki PJ. Multimodality PET and Near-Infrared Fluorescence Intraoperative Imaging of CEA-Positive Colorectal Cancer. Mol Imaging Biol 2023:10.1007/s11307-023-01831-8. [PMID: 37341873 DOI: 10.1007/s11307-023-01831-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2023] [Revised: 06/02/2023] [Accepted: 06/05/2023] [Indexed: 06/22/2023]
Abstract
PURPOSE Molecular imaging is a major diagnostic component for cancer management, enabling detection, staging of disease, targeting therapy, and monitoring the therapeutic response. The coordination of multimodality imaging techniques further enhances tumor localization. The development of a single agent for real-time non-invasive targeted positron emission tomography (PET) imaging and fluorescence guided surgery (FGS) will provide the next generation tool in the surgical management of cancer. PROCEDURES The humanized anti-CEA M5A-IR800 "sidewinder" (M5A-IR800-SW) antibody-dye conjugate was designed with a NIR 800 nm dye incorporated into a PEGylated linker and conjugated with the metal chelate p-SCN-Bn-deferoxamine (DFO) for zirconium-89 PET imaging (89Zr, half-life 78.4 h). The dual-labeled 89Zr-DFO-M5A-SW-IR800 was evaluated for near infrared (NIR) fluorescence imaging, PET/MRI imaging, terminal tissue biodistribution, and blood clearance in a human colorectal cancer LS174T xenograft mouse model. RESULTS The 89Zr-DFO-M5A-SW-IR800 NIR fluorescence imaging showed high tumor targeting with normal liver uptake. Serial PET/MRI imaging was performed at 24 h, 48 h, and 72 h and showed tumor localization visible at 24 h that persisted throughout the experiment. However, the PET scans showed higher activity for the liver than the tumor, compared to the NIR fluorescence imaging. This difference is an important finding as it quantifies the expected difference due to the sensitivity and depth of penetration between the 2 modalities. CONCLUSIONS This study demonstrates the potential of a pegylated anti-CEA M5A-IR800-Sidewinder for NIR fluorescence/PET/MR multimodality imaging for intraoperative fluorescence guided surgery.
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Affiliation(s)
- Thinzar M Lwin
- Department of Surgery, City of Hope National Medical Center, Duarte, CA, USA
| | - Megan Minnix
- Department of Immunology & Theranostics, Beckman Research Institute, City of Hope, 1500 Duarte Road, Duarte, CA, 91010, USA
| | - Lin Li
- Department of Immunology & Theranostics, Beckman Research Institute, City of Hope, 1500 Duarte Road, Duarte, CA, 91010, USA
| | - Anakim Sherman
- Department of Immunology & Theranostics, Beckman Research Institute, City of Hope, 1500 Duarte Road, Duarte, CA, 91010, USA
| | - Teresa Hong
- Department of Immunology & Theranostics, Beckman Research Institute, City of Hope, 1500 Duarte Road, Duarte, CA, 91010, USA
| | - Jeffery Y C Wong
- Department of Radiation Oncology, City of Hope National Medical Center, Duarte, CA, 91010, USA
| | - Tove Olafsen
- Small Animal Imaging Core, Beckman Research Institute, City of Hope, Duarte, CA, 91010, USA
| | - Erasmus Poku
- Radiopharmacy, Beckman Research Institute, City of Hope, CA, 91010, Duarte, USA
| | - Michael Bouvet
- Department of Surgery, University of California, San Diego, La Jolla, CA, USA
- VA San Diego Healthcare System, La Jolla, CA, USA
| | - Yuman Fong
- Department of Surgery, City of Hope National Medical Center, Duarte, CA, USA
| | - John E Shively
- Department of Immunology & Theranostics, Beckman Research Institute, City of Hope, 1500 Duarte Road, Duarte, CA, 91010, USA
| | - Paul J Yazaki
- Department of Immunology & Theranostics, Beckman Research Institute, City of Hope, 1500 Duarte Road, Duarte, CA, 91010, USA.
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Paradossi G, Grossman R, Riccitelli F, Todaro F, Ram Z, Schioppa S, Domenici F. Toward a theranostic device for gliomas. Biochem Biophys Res Commun 2023; 671:124-131. [PMID: 37300942 DOI: 10.1016/j.bbrc.2023.05.089] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Revised: 05/19/2023] [Accepted: 05/22/2023] [Indexed: 06/12/2023]
Abstract
BACKGROUND In the surgical management of glioblastoma, a highly aggressive and incurable type of brain cancer, identification and treatment of residual tissue is the most common site of disease recurrence. Monitoring and localized treatment are achieved with engineered microbubbles (MBs) by combining ultrasound and fluorescence imaging with actively targeted temozolomide (TMZ) delivery. METHODS The MBs were conjugated with a near-infrared fluorescence probe CF790, cyclic pentapeptide bearing the RGD sequence and a carboxyl-temozolomide, TMZA. The efficiency of adhesion to HUVEC cells was assessed in vitro in realistic physiological conditions of shear rate and vascular dimensions. Cytotoxicity of TMZA-loaded MBs on U87 MG cells and IC50 were assessed by MTT tests. RESULTS We report on the design of injectable poly(vinyl alcohol) echogenic MBs designed as a platform with active targeting ability to tumor tissues, by tethering on the surface a ligand having the tripeptide sequence, RGD. The biorecognition of RGD-MBs onto HUVEC cells is quantitatively proved. Efficient NIR emission from the CF790-decorated MBs was successfully detected. The conjugation on the MBs surface of a specific drug as TMZ is achieved. The pharmacological activity of the coupled-to-surface drug is preserved by controlling the reaction conditions. CONCLUSIONS We present an improved formulation of PVA-MBs to achieve a multifunctional device with adhesion ability, cytotoxicity on glioblastoma cells and supporting imaging.
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Affiliation(s)
- Gaio Paradossi
- Department of Chemical Sciences and Technologies, University of Rome "Tor Vergata", 00133, Rome, Italy.
| | - Rachel Grossman
- Department of Neurosurgery, Tel Aviv Medical Center, affiliated to the Sackler Faculty of Medicine, Tel-Aviv University, Tel-Aviv, Israel
| | - Francesco Riccitelli
- Department of Chemical Sciences and Technologies, University of Rome "Tor Vergata", 00133, Rome, Italy
| | - Federica Todaro
- Department of Chemical Sciences and Technologies, University of Rome "Tor Vergata", 00133, Rome, Italy
| | - Zvi Ram
- Department of Neurosurgery, Tel Aviv Medical Center, affiliated to the Sackler Faculty of Medicine, Tel-Aviv University, Tel-Aviv, Israel
| | - Sara Schioppa
- Department of Chemical Sciences and Technologies, University of Rome "Tor Vergata", 00133, Rome, Italy
| | - Fabio Domenici
- Department of Chemical Sciences and Technologies, University of Rome "Tor Vergata", 00133, Rome, Italy
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Straehla JP, Reardon DA, Wen PY, Agar NYR. The Blood-Brain Barrier: Implications for Experimental Cancer Therapeutics. ANNUAL REVIEW OF CANCER BIOLOGY 2023; 7:265-289. [PMID: 38323268 PMCID: PMC10846865 DOI: 10.1146/annurev-cancerbio-061421-040433] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Indexed: 02/08/2024]
Abstract
The blood-brain barrier is critically important for the treatment of both primary and metastatic cancers of the central nervous system (CNS). Clinical outcomes for patients with primary CNS tumors are poor and have not significantly improved in decades. As treatments for patients with extracranial solid tumors improve, the incidence of CNS metastases is on the rise due to suboptimal CNS exposure of otherwise systemically active agents. Despite state-of-the art surgical care and increasingly precise radiation therapy, clinical progress is limited by the ability to deliver an effective dose of a therapeutic agent to all cancerous cells. Given the tremendous heterogeneity of CNS cancers, both across cancer subtypes and within a single tumor, and the range of diverse therapies under investigation, a nuanced examination of CNS drug exposure is needed. With a shared goal, common vocabulary, and interdisciplinary collaboration, the field is poised for renewed progress in the treatment of CNS cancers.
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Affiliation(s)
- Joelle P Straehla
- Department of Pediatric Oncology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, Massachusetts, USA
- Division of Hematology/Oncology, Boston Children's Hospital, Harvard Medical School, Boston, Massachusetts, USA
- Koch Institute for Integrative Cancer Research at MIT, Cambridge, Massachusetts, USA
| | - David A Reardon
- Center for Neuro-Oncology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, Massachusetts, USA
- Department of Internal Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Patrick Y Wen
- Center for Neuro-Oncology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, Massachusetts, USA
- Department of Neurology, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Nathalie Y R Agar
- Department of Neurosurgery and Department of Radiology, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA
- Department of Cancer Biology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, Massachusetts, USA
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6
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Privat M, Bellaye PS, Chazeau E, Racoeur C, Adumeau P, Vivier D, Bernhard C, Moreau M, Collin B, Bettaieb A, Denat F, Bodio E, Paul C, Goze C. First Comparison Study of the In Vitro and In Vivo Properties of a Randomly and Site-Specifically Conjugated SPECT/NIRF Monomolecular Multimodal Imaging Probe (MOMIP) Based on an aza-BODIPY Fluorophore. Bioconjug Chem 2023. [DOI: 10.1021/acs.bioconjchem.3c00080] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/29/2023]
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7
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Lv J, Hu Y, Zhao H, Ye M, Ding N, Zhong J, Wang X. High-resolution and high-speed 3D tracking of microrobots using a fluorescent light field microscope. Quant Imaging Med Surg 2023; 13:1426-1439. [PMID: 36915357 PMCID: PMC10006150 DOI: 10.21037/qims-22-430] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Accepted: 09/22/2022] [Indexed: 02/24/2023]
Abstract
Background Imaging and tracking are crucial for microrobots which navigate through complex 3D environments. Fluorescent imaging (FI) by microscope offers a high-resolution and high-sensitive imaging method to study the property of microrobots. However, conventional microscope suffers from shallow depth of field (DOF) and lacks 3D imaging capability. Methods We proposed a high-resolution and high-speed 3D tracking method for microrobots based on a fluorescent light field microscope (FLFM). We designed the FLFM system according to the size of a representative helical microrobot (150 μm body length, 50 μm screw diameter), and studied the system's performance. We also proposed a 3D tracking algorithm for microrobots using digital refocusing. Results We validated the method by simulations and built an FLFM system to perform the tracking experiments of microrobots with representative size. Our 3D tracking method achieves a 30 fps data acquisition rate, 10 μm lateral resolution and approximately 40 μm axial resolution over a volume of 1,200×1,200×326 μm3. Results indicate that the accuracy of the method can reach about 9 μm. Conclusions Compared with the FI by a conventional microscope, the FLFM-based method gains wider DOF and 3D imaging capability with a single-shot image. The tracking method succeeds in providing the trajectory of the microrobot with a good lateral resolution.
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Affiliation(s)
- Jiahang Lv
- Beijing Key Lab for Precision Optoelectronic Measurement Instrument and Technology, School of Optics and Photonics, Beijing Institute of Technology, Beijing, China.,Shenzhen Institute of Artificial Intelligence and Robotics for Society (AIRS), The Chinese University of Hong Kong, Shenzhen, China
| | - Yao Hu
- Beijing Key Lab for Precision Optoelectronic Measurement Instrument and Technology, School of Optics and Photonics, Beijing Institute of Technology, Beijing, China
| | - Hongyu Zhao
- Shenzhen Institute of Artificial Intelligence and Robotics for Society (AIRS), The Chinese University of Hong Kong, Shenzhen, China
| | - Min Ye
- Shenzhen Institute of Artificial Intelligence and Robotics for Society (AIRS), The Chinese University of Hong Kong, Shenzhen, China
| | - Ning Ding
- Shenzhen Institute of Artificial Intelligence and Robotics for Society (AIRS), The Chinese University of Hong Kong, Shenzhen, China
| | - Jingshan Zhong
- Shenzhen Institute of Artificial Intelligence and Robotics for Society (AIRS), The Chinese University of Hong Kong, Shenzhen, China.,Research Center for Humanoid Sensing, Zhejiang Lab, Hangzhou, China
| | - Xiaopu Wang
- Shenzhen Institute of Artificial Intelligence and Robotics for Society (AIRS), The Chinese University of Hong Kong, Shenzhen, China
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8
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Hybrid perylene-cored poly(amidoamine) dendrimer with coumarin and calcozine red 6G end groups: From photophysical properties to cell imaging. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.130036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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9
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Jarockyte G, Stasys M, Poderys V, Buivydaite K, Pleckaitis M, Bulotiene D, Matulionyte M, Karabanovas V, Rotomskis R. Biodistribution of Multimodal Gold Nanoclusters Designed for Photoluminescence-SPECT/CT Imaging and Diagnostic. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:nano12193259. [PMID: 36234387 PMCID: PMC9565908 DOI: 10.3390/nano12193259] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/03/2022] [Revised: 09/15/2022] [Accepted: 09/16/2022] [Indexed: 05/30/2023]
Abstract
Highly biocompatible nanostructures for multimodality imaging are critical for clinical diagnostics improvements in the future. Combining optical imaging with other techniques may lead to important advances in diagnostics. The purpose of such a system would be to combine the individual advantages of each imaging method to provide reliable and accurate information at the site of the disease bypassing the limitations of each. The aim of the presented study was to evaluate biodistribution of the biocompatible technetium-99m labelled bovine serum albumin-gold nanoclusters (99mTc-BSA-Au NCs) as photoluminescence-SPECT/CT agent in experimental animals. It was verified spectroscopically that radiolabelling with 99mTc does not influence the optical properties of BSA-Au NCs within the synthesized 99mTc-BSA-Au NCs bioconjugates. Biodistribution imaging of the 99mTc-BSA-Au NCs in Wistar rats was performed using a clinical SPECT/CT system. In vivo imaging of Wistar rats demonstrated intense cardiac blood pool activity, as well as rapid blood clearance and accumulation in the kidneys, liver, and urinary bladder. Confocal images of kidney, liver and spleen tissues revealed no visible uptake indicating that the circulation lifetime of 99mTc-BSA-Au NCs in the bloodstream might be too short for accumulation in these tissues. The cellular uptake of 99mTc-BSA-Au NCs in kidney cells was also delayed and substantial accumulation was observed only after 24-h incubation. Based on our experiments, it was concluded that 99mTc-BSA-Au NCs could be used as a contrast agent and shows promise as potential diagnostic agents for bloodstream imaging of the excretory organs in vivo.
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Affiliation(s)
- Greta Jarockyte
- Biomedical Physics Laboratory, National Cancer Institute, LT-08406 Vilnius, Lithuania
- Life Sciences Center, Vilnius University, LT-10257 Vilnius, Lithuania
| | - Marius Stasys
- Biomedical Physics Laboratory, National Cancer Institute, LT-08406 Vilnius, Lithuania
| | - Vilius Poderys
- Biomedical Physics Laboratory, National Cancer Institute, LT-08406 Vilnius, Lithuania
| | - Kornelija Buivydaite
- Biomedical Physics Laboratory, National Cancer Institute, LT-08406 Vilnius, Lithuania
- Life Sciences Center, Vilnius University, LT-10257 Vilnius, Lithuania
| | - Marijus Pleckaitis
- Biomedical Physics Laboratory, National Cancer Institute, LT-08406 Vilnius, Lithuania
- Life Sciences Center, Vilnius University, LT-10257 Vilnius, Lithuania
| | - Danute Bulotiene
- Biomedical Physics Laboratory, National Cancer Institute, LT-08406 Vilnius, Lithuania
| | - Marija Matulionyte
- Biomedical Physics Laboratory, National Cancer Institute, LT-08406 Vilnius, Lithuania
| | - Vitalijus Karabanovas
- Biomedical Physics Laboratory, National Cancer Institute, LT-08406 Vilnius, Lithuania
- Department of Chemistry and Bioengineering, Vilnius Gediminas Technical University, LT-10223 Vilnius, Lithuania
| | - Ricardas Rotomskis
- Biomedical Physics Laboratory, National Cancer Institute, LT-08406 Vilnius, Lithuania
- Laser Research Center, Faculty of Physics, Vilnius University, LT-10223 Vilnius, Lithuania
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Synthesis and characterization of fluorescence poly(amidoamine) dendrimer-based pigments. Sci Rep 2022; 12:15180. [PMID: 36071149 PMCID: PMC9452493 DOI: 10.1038/s41598-022-19712-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2022] [Accepted: 09/02/2022] [Indexed: 11/11/2022] Open
Abstract
In this work, we looked at how to make fluorescence hybrid poly(amidoamine) dendrimer (PAMAM) dendrimers using calcozine red 6G and coumarin end groups. After synthesis of ethylenediamine (EDA)-cored 4th generation PAMAM dendrimer (G4.0), surface functional groups is reacted with calcozine red 6G (Rh6G) and 7-methacryloyloxy-4-methylcoumarin. Fourier transform infrared spectroscopy, proton nuclear magnetic resonance (1H NMR), and X-ray diffraction are used to characterize the structure of synthesized fluorescent hybrid dendrimers. Optical properties are demonstrated using a fluorescence spectrophotometer, and UV–Vis–NIR reflectance spectra. According to UV–Vis–NIR reflectance spectra, hybrid dendrimers were transparent in the NIR range. Moreover, quantum yield (Φs) of hybrid dendrimers was calculated in dimethylformamide (DMF), ethanol, dimethyl sulfoxide (DMSO), and distilled water (H2O). Dendrimers in which Rh6G was utilized to modification showed the maximum quantum yield in ethanol due to great interaction of structure with ethanol and the arrangement of ring-opened amide shape of calcozine red 6G.
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11
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Tissue distribution of Lycium barbarum polysaccharides in rat tissue by fluorescein isothiocyanate labeling. FOOD SCIENCE AND HUMAN WELLNESS 2022. [DOI: 10.1016/j.fshw.2022.03.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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Meador WE, Kapusta K, Owolabi I, Autry SA, Saloni J, Kolodziejczyk W, Hammer NI, Flynt AS, Hill GA, Delcamp JH. Ultra Bright Near‐Infrared Sulfonate‐Indolizine Cyanine‐ and Squaraine‐Albumin Chaperones: Record Quantum Yields and Applications. CHEMPHOTOCHEM 2022. [DOI: 10.1002/cptc.202200127] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- William E. Meador
- University of Mississippi Department of Chemistry and Biochemistry 38677 University UNITED STATES
| | - Karina Kapusta
- Jackson State University Department of Chemistry, Physics and Atmospheric Sciences 39217 Jackson UNITED STATES
| | - Iyanuoluwani Owolabi
- University of Southern Mississippi Department of Biological Sciences 39406 UNITED STATES
| | - Shane A. Autry
- University of Mississippi Department of Chemistry and Biochemistry 38677 UNITED STATES
| | - Julia Saloni
- Jackson State University Department of Chemistry, Physics and Atmospheric Sciences 39217 UNITED STATES
| | - Wojciech Kolodziejczyk
- Jackson State University Department of Chemistry, Physics and Atmospheric Sciences 39217 UNITED STATES
| | - Nathan I. Hammer
- University of Mississippi Department of Chemistry and Biochemistry 38677 UNITED STATES
| | - Alex S. Flynt
- University of Southern Mississippi Department of Biological Sciences 39406 UNITED STATES
| | - Glake A. Hill
- Jackson State University Department of Chemistry, Physics and Atmospheric Sciences 39217 UNITED STATES
| | - Jared Heath Delcamp
- University of Mississippi Chemistry 405 Coulter Hall 38677 University UNITED STATES
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Dual-Labelling Strategies for Nuclear and Fluorescence Molecular Imaging: Current Status and Future Perspectives. Pharmaceuticals (Basel) 2022; 15:ph15040432. [PMID: 35455430 PMCID: PMC9028399 DOI: 10.3390/ph15040432] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2022] [Revised: 03/27/2022] [Accepted: 03/28/2022] [Indexed: 12/13/2022] Open
Abstract
Molecular imaging offers the possibility to investigate biological and biochemical processes non-invasively and to obtain information on both anatomy and dysfunctions. Based on the data obtained, a fundamental understanding of various disease processes can be derived and treatment strategies can be planned. In this context, methods that combine several modalities in one probe are increasingly being used. Due to the comparably high sensitivity and provided complementary information, the combination of nuclear and optical probes has taken on a special significance. In this review article, dual-labelled systems for bimodal nuclear and optical imaging based on both modular ligands and nanomaterials are discussed. Particular attention is paid to radiometal-labelled molecules for single-photon emission computed tomography (SPECT) and positron emission tomography (PET) and metal complexes combined with fluorescent dyes for optical imaging. The clinical potential of such probes, especially for fluorescence-guided surgery, is assessed.
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Targeted Dual-Modal PET/SPECT-NIR Imaging: From Building Blocks and Construction Strategies to Applications. Cancers (Basel) 2022; 14:cancers14071619. [PMID: 35406390 PMCID: PMC8996983 DOI: 10.3390/cancers14071619] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2022] [Revised: 03/17/2022] [Accepted: 03/18/2022] [Indexed: 02/04/2023] Open
Abstract
Molecular imaging is an emerging non-invasive method to qualitatively and quantitively visualize and characterize biological processes. Among the imaging modalities, PET/SPECT and near-infrared (NIR) imaging provide synergistic properties that result in deep tissue penetration and up to cell-level resolution. Dual-modal PET/SPECT-NIR agents are commonly combined with a targeting ligand (e.g., antibody or small molecule) to engage biomolecules overexpressed in cancer, thereby enabling selective multimodal visualization of primary and metastatic tumors. The use of such agents for (i) preoperative patient selection and surgical planning and (ii) intraoperative FGS could improve surgical workflow and patient outcomes. However, the development of targeted dual-modal agents is a chemical challenge and a topic of ongoing research. In this review, we define key design considerations of targeted dual-modal imaging from a topological perspective, list targeted dual-modal probes disclosed in the last decade, review recent progress in the field of NIR fluorescent probe development, and highlight future directions in this rapidly developing field.
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Adumeau P, Raavé R, Boswinkel M, Heskamp S, Wessels HJCT, van Gool AJ, Moreau M, Bernhard C, Da Costa L, Goncalves V, Denat F. Site-Specific, Platform-Based Conjugation Strategy for the Synthesis of Dual-Labeled Immunoconjugates for Bimodal PET/NIRF Imaging of HER2-Positive Tumors. Bioconjug Chem 2022; 33:530-540. [PMID: 35230093 DOI: 10.1021/acs.bioconjchem.2c00049] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Because positron emission tomography (PET) and optical imaging are very complementary, the combination of these two imaging modalities is very enticing in the oncology field. Such bimodal imaging generally relies on imaging agents bearing two different imaging reporters. In the bioconjugation field, this is mainly performed by successive random conjugations of the two reporters on the protein vector, but these random conjugations can alter the vector properties. In this study, we aimed at abrogating the heterogeneity of the bimodal imaging immunoconjugate and mitigating the impact of multiple random conjugations. A trivalent platform bearing a DFO chelator for 89Zr labeling, a NIR fluorophore, IRDye800CW, and a bioconjugation handle was synthesized. This bimodal probe was site-specifically grafted to trastuzumab via glycan engineering. This new bimodal immunoconjugate was then investigated in terms of radiochemistry, in vitro and in vivo, and compared to the clinically relevant random equivalent. In vitro and in vivo, our strategy provides several improvements over the current clinical standard. The combination of site-specific conjugation with the monomolecular platform reduced the heterogeneity of the final immunoconjugate, improved the resistance of the fluorophore toward radiobleaching, and reduced the nonspecific uptake in the spleen and liver compared to the standard random immunoconjugate. To conclude, the strategy developed is very promising for the synthesis of better defined dual-labeled immunoconjugates, although there is still room for improvement. Importantly, this conjugation strategy is highly modular and could be used for the synthesis of a wide range of dual-labeled immunoconjugates.
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Affiliation(s)
- Pierre Adumeau
- Institut de Chimie Moléculaire de l'Université de Bourgogne, UMR 6302, CNRS, Université Bourgogne Franche-Comté, 9 Avenue Alain Savary, 21000 Dijon, France
| | - René Raavé
- Department of Medical Imaging, Radboud Institute for Molecular Life Sciences, Radboud University Medical Centre, Geert Grooteplein Zuid 28, 6525 GA Nijmegen, The Netherlands
| | - Milou Boswinkel
- Department of Medical Imaging, Radboud Institute for Molecular Life Sciences, Radboud University Medical Centre, Geert Grooteplein Zuid 28, 6525 GA Nijmegen, The Netherlands
| | - Sandra Heskamp
- Department of Medical Imaging, Radboud Institute for Molecular Life Sciences, Radboud University Medical Centre, Geert Grooteplein Zuid 28, 6525 GA Nijmegen, The Netherlands
| | - Hans J C T Wessels
- Translational Metabolic Laboratory, Department of Laboratory Medicine, Radboud University Medical Centre, Geert Grooteplein Zuid 10, 6525 GA Nijmegen, The Netherlands
| | - Alain J van Gool
- Translational Metabolic Laboratory, Department of Laboratory Medicine, Radboud University Medical Centre, Geert Grooteplein Zuid 10, 6525 GA Nijmegen, The Netherlands
| | - Mathieu Moreau
- Institut de Chimie Moléculaire de l'Université de Bourgogne, UMR 6302, CNRS, Université Bourgogne Franche-Comté, 9 Avenue Alain Savary, 21000 Dijon, France
| | - Claire Bernhard
- Institut de Chimie Moléculaire de l'Université de Bourgogne, UMR 6302, CNRS, Université Bourgogne Franche-Comté, 9 Avenue Alain Savary, 21000 Dijon, France
| | - Laurène Da Costa
- Institut de Chimie Moléculaire de l'Université de Bourgogne, UMR 6302, CNRS, Université Bourgogne Franche-Comté, 9 Avenue Alain Savary, 21000 Dijon, France
| | - Victor Goncalves
- Institut de Chimie Moléculaire de l'Université de Bourgogne, UMR 6302, CNRS, Université Bourgogne Franche-Comté, 9 Avenue Alain Savary, 21000 Dijon, France
| | - Franck Denat
- Institut de Chimie Moléculaire de l'Université de Bourgogne, UMR 6302, CNRS, Université Bourgogne Franche-Comté, 9 Avenue Alain Savary, 21000 Dijon, France
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Pharmacokinetics and Excretion Study of Lycium barbarum Polysaccharides in Rats by FITC-Fluorescence Labeling. Foods 2021; 10:foods10112851. [PMID: 34829132 PMCID: PMC8623638 DOI: 10.3390/foods10112851] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2021] [Revised: 11/15/2021] [Accepted: 11/16/2021] [Indexed: 12/23/2022] Open
Abstract
A high-performance gel permeation chromatography fluorescence detection (HPGPC-FD) method combined with fluorescein isothiocyanate (FITC) labeling was established for the microanalysis of L. barbarum polysaccharides (LBP). The calibration curves linear over the range of 0.2–20 µg/mL in rat plasma, and 0.25–500 μg/mL in urine and feces samples with correlation coefficients greater than 0.99. The inter-day and intra-day precisions (RSD, %) of the method were under 15% with the relative recovery ranging from 84.6% to 104.0% and the RSD ranging from 0.47% to 7.28%. The concentration–time curve of LBP-FITC in plasma following intragastric administration at 100, 50 and 25 mg/kg well fitted to a nonlinear model. LBP-FITC slowly eliminated from plasma according to the long half-lives (t1/2 = 31.39, 38.09, and 45.76 h, respectively) and mean retention times (MRT0–t = 18.38, 19.15 and 20.07 h, respectively; AUC0–∞ = 230.49, 236.18 and 242.57 h, respectively) after administration of LBP-FITC at doses of 100, 50, and 25 mg/kg, respectively. After intragastric administration at 50 mg/kg for 72 h, the concentration of LBP-FITC in urine and feces was 0.09 ± 0.04% and 92.18 ± 3.61% respectively; the excretion rate of urine was the highest in 0–4 h period and decreased continuously in 4–24 h period. The excretion rate of feces was the highest in 4–10 h, 48.28 ± 9.349% in feces within 4–10 h, and decreased rapidly in 10–24 h. The present study showed that LBP was absorbed as its prototype and most proportion of LBP was excreted from feces, indicating a long time remaining in intestine.
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Privat M, Bellaye PS, Lescure R, Massot A, Baffroy O, Moreau M, Racoeur C, Marcion G, Denat F, Bettaieb A, Collin B, Bodio E, Paul C, Goze C. Development of an Easily Bioconjugatable Water-Soluble Single-Photon Emission-Computed Tomography/Optical Imaging Bimodal Imaging Probe Based on the aza-BODIPY Fluorophore. J Med Chem 2021; 64:11063-11073. [PMID: 34338511 DOI: 10.1021/acs.jmedchem.1c00450] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A water-soluble fluorescent aza-BODIPY platform (Wazaby) was prepared and functionalized by a polyazamacrocycle agent and a bioconjugable arm. The resulting fluorescent derivative was characterized and bioconjugated onto a trastuzumab monoclonal antibody as a vector. After bioconjugation, the imaging agent appeared to be stable in serum (>72 h at 37 °C) and specifically labeled HER-2-positive breast tumors slices. The bioconjugate was radiolabeled with [111In] indium and studied in vivo. The developed monomolecular multimodal imaging probe (MOMIP) is water-soluble and chemically and photochemically stable, emits in the near infrared (NIR) region (734 nm in aqueous media), and displays a good quantum yield of fluorescence (around 15%). Single-photon emission-computed tomography and fluorescence imaging have been performed in nude mice bearing HER2-overexpressing HCC1954 human breast cancer xenografts and have evidenced the good tumor targeting of the [111In] In bimodal agent. Finally, the proof of concept of using it as a new tool for fluorescence-guided surgery has been shown.
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Affiliation(s)
- Malorie Privat
- Institut de Chimie Moléculaire de l'Université de Bourgogne, ICMUB UMR CNRS 6302, Université Bourgogne Franche-Comté, Dijon 21000, France.,Laboratoire d'Immunologie et Immunothérapie des Cancers, EPHE, PSL Research University, 75000 Paris; LIIC, EA7269, Université de Bourgogne, Franche Comté, Dijon 21000, France
| | - Pierre-Simon Bellaye
- Service de médecine nucléaire, Centre Georges François Leclerc, 1 rue Professeur Marion, BP77980, Dijon Cedex 21079, France
| | - Robin Lescure
- Institut de Chimie Moléculaire de l'Université de Bourgogne, ICMUB UMR CNRS 6302, Université Bourgogne Franche-Comté, Dijon 21000, France
| | - Aurélie Massot
- Laboratoire d'Immunologie et Immunothérapie des Cancers, EPHE, PSL Research University, 75000 Paris; LIIC, EA7269, Université de Bourgogne, Franche Comté, Dijon 21000, France
| | - Océane Baffroy
- Institut de Chimie Moléculaire de l'Université de Bourgogne, ICMUB UMR CNRS 6302, Université Bourgogne Franche-Comté, Dijon 21000, France
| | - Mathieu Moreau
- Institut de Chimie Moléculaire de l'Université de Bourgogne, ICMUB UMR CNRS 6302, Université Bourgogne Franche-Comté, Dijon 21000, France.,Service de médecine nucléaire, Centre Georges François Leclerc, 1 rue Professeur Marion, BP77980, Dijon Cedex 21079, France
| | - Cindy Racoeur
- Laboratoire d'Immunologie et Immunothérapie des Cancers, EPHE, PSL Research University, 75000 Paris; LIIC, EA7269, Université de Bourgogne, Franche Comté, Dijon 21000, France
| | - Guillaume Marcion
- UMR INSERM/uB/AGROSUP 1231, Team 3 HSP-Pathies, labellisée Ligue Nationale contre le Cancer and Laboratoire d'Excellence LipSTIC, Dijon, France UFR des Sciences de Santé, Université de Bourgogne, Dijon 21000, France
| | - Franck Denat
- Institut de Chimie Moléculaire de l'Université de Bourgogne, ICMUB UMR CNRS 6302, Université Bourgogne Franche-Comté, Dijon 21000, France
| | - Ali Bettaieb
- Laboratoire d'Immunologie et Immunothérapie des Cancers, EPHE, PSL Research University, 75000 Paris; LIIC, EA7269, Université de Bourgogne, Franche Comté, Dijon 21000, France
| | - Bertrand Collin
- Institut de Chimie Moléculaire de l'Université de Bourgogne, ICMUB UMR CNRS 6302, Université Bourgogne Franche-Comté, Dijon 21000, France.,Service de médecine nucléaire, Centre Georges François Leclerc, 1 rue Professeur Marion, BP77980, Dijon Cedex 21079, France
| | - Ewen Bodio
- Institut de Chimie Moléculaire de l'Université de Bourgogne, ICMUB UMR CNRS 6302, Université Bourgogne Franche-Comté, Dijon 21000, France
| | - Catherine Paul
- Laboratoire d'Immunologie et Immunothérapie des Cancers, EPHE, PSL Research University, 75000 Paris; LIIC, EA7269, Université de Bourgogne, Franche Comté, Dijon 21000, France
| | - Christine Goze
- Institut de Chimie Moléculaire de l'Université de Bourgogne, ICMUB UMR CNRS 6302, Université Bourgogne Franche-Comté, Dijon 21000, France
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Schmitthenner HF, Barrett TM, Beach SA, Heese LE, Weidman C, Dobson DE, Mahoney ER, Schug NC, Jones KG, Durmaz C, Otasowie O, Aronow S, Lee YP, Ophardt HD, Becker AE, Hornak JP, Evans IM, Ferran MC. Modular Synthesis of Peptide-Based Single- and Multimodal Targeted Molecular Imaging Agents. ACS APPLIED BIO MATERIALS 2021; 4:5435-5448. [PMID: 35006725 DOI: 10.1021/acsabm.1c00157] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
A practical, modular synthesis of targeted molecular imaging agents (TMIAs) containing near-infrared dyes for optical molecular imaging (OMI) or chelated metals for magnetic resonance imaging (MRI) and single-photon emission correlation tomography (SPECT) or positron emission tomography (PET) has been developed. In the method, imaging modules are formed early in the synthesis by attaching imaging agents to the side chain of protected lysines. These modules may be assembled to provide a given set of single- or dual-modal imaging agents, which may be conjugated in the last steps of the synthesis under mild conditions to linkers and targeting groups. A key discovery was the ability of a metal such as gadolinium, useful in MRI, to serve as a protecting group for the chelator, 1,4,7,10-tetraazacyclododecane-1,4,7,10-tetraacetic acid (DOTA). It was further discovered that two lanthanide metals, La and Ce, can double as protecting groups and placeholder metals, which may be transmetalated under mild conditions by metals used for PET in the final step. The modular method enabled the synthesis of discrete targeted probes with two of the same or different dyes, two same or different metals, or mixtures of dyes and metals. The approach was exemplified by the synthesis of single- or dual-modal imaging modules for MRI-OMI, PET-OMI, and PET-MRI, followed by conjugation to the integrin-seeking peptide, c(RGDyK). For Gd modules, their efficacy for MRI was verified by measuring the NMR spin-lattice relaxivity. To validate functional imaging of TMIAs, dual-modal agents containing Cy5.5 were shown to target A549 cancer cells by confocal fluorescence microscopy.
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Affiliation(s)
- Hans F Schmitthenner
- School of Chemistry and Materials Science, Rochester Institute of Technology, Rochester, New York 14623, United States
| | - Taylor M Barrett
- School of Chemistry and Materials Science, Rochester Institute of Technology, Rochester, New York 14623, United States
| | - Stephanie A Beach
- School of Chemistry and Materials Science, Rochester Institute of Technology, Rochester, New York 14623, United States
| | - Lauren E Heese
- School of Chemistry and Materials Science, Rochester Institute of Technology, Rochester, New York 14623, United States
| | - Chelsea Weidman
- School of Chemistry and Materials Science, Rochester Institute of Technology, Rochester, New York 14623, United States
| | - Damien E Dobson
- School of Chemistry and Materials Science, Rochester Institute of Technology, Rochester, New York 14623, United States
| | - Emily R Mahoney
- School of Chemistry and Materials Science, Rochester Institute of Technology, Rochester, New York 14623, United States
| | - Nicholas C Schug
- School of Chemistry and Materials Science, Rochester Institute of Technology, Rochester, New York 14623, United States
| | - Kelsea G Jones
- School of Chemistry and Materials Science, Rochester Institute of Technology, Rochester, New York 14623, United States
| | - Ceyda Durmaz
- School of Chemistry and Materials Science, Rochester Institute of Technology, Rochester, New York 14623, United States
| | - Osarhuwense Otasowie
- School of Chemistry and Materials Science, Rochester Institute of Technology, Rochester, New York 14623, United States
| | - Sean Aronow
- Gosnell School of Life Sciences, Rochester Institute of Technology, Rochester, New York 14623, United States
| | - Yin Peng Lee
- Gosnell School of Life Sciences, Rochester Institute of Technology, Rochester, New York 14623, United States
| | - Henry D Ophardt
- Gosnell School of Life Sciences, Rochester Institute of Technology, Rochester, New York 14623, United States
| | - Amy E Becker
- Chester Carlson Center for Imaging Science, Rochester Institute of Technology, Rochester, New York 14623, United States
| | - Joseph P Hornak
- School of Chemistry and Materials Science, Rochester Institute of Technology, Rochester, New York 14623, United States.,Chester Carlson Center for Imaging Science, Rochester Institute of Technology, Rochester, New York 14623, United States
| | - Irene M Evans
- Gosnell School of Life Sciences, Rochester Institute of Technology, Rochester, New York 14623, United States
| | - Maureen C Ferran
- Gosnell School of Life Sciences, Rochester Institute of Technology, Rochester, New York 14623, United States
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19
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Yuen R, Wagner M, Richter S, Dufour J, Wuest M, West FG, Wuest F. Design, synthesis, and evaluation of positron emission tomography/fluorescence dual imaging probes for targeting facilitated glucose transporter 1 (GLUT1). Org Biomol Chem 2021; 19:3241-3254. [PMID: 33885579 DOI: 10.1039/d1ob00199j] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Increased energy metabolism followed by enhanced glucose consumption is a hallmark of cancer. Most cancer cells show overexpression of facilitated hexose transporter GLUT1, including breast cancer. GLUT1 is the main transporter for 2-deoxy-2-[18F]fluoro-d-glucose (2-[18F]FDG), the gold standard of positron emission tomography (PET) imaging in oncology. The present study's goal was to develop novel glucose-based dual imaging probes for their use in tandem PET and fluorescence (Fl) imaging. A glucosamine scaffold tagged with a fluorophore and an 18F-label should confer selectivity to GLUT1. Out of five different compounds, 2-deoxy-2-((7-sulfonylfluoro-2,1,3-benzoxadiazol-4-yl)amino)-d-glucose (2-FBDG) possessed favorable fluorescent properties and a similar potency as 2-deoxy-2-((7-nitro-2,1,3-benzoxadiazol-4-yl)amino)-d-glucose (2-NBDG) in competing for GLUT1 transport against 2-[18F]FDG in breast cancer cells. Radiolabeling with 18F was achieved through the synthesis of prosthetic group 7-fluoro-2,1,3-benzoxadiazole-4-sulfonyl [18F]fluoride ([18F]FBDF) followed by the reaction with glucosamine. The radiotracer was finally analyzed in vivo in a breast cancer xenograft model and compared to 2-[18F]FDG. Despite favourable in vitro fluorescence imaging properties, 2-[18F]FBDG was found to lack metabolic stability in vivo, resulting in radiodefluorination. Glucose-based 2-[18F]FBDG represents a novel dual-probe for GLUT1 imaging using FI and PET with the potential for further structural optimization for improved metabolic stability in vivo.
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Affiliation(s)
- Richard Yuen
- Department of Chemistry, 11227 Saskatchewan Drive University of Alberta, Edmonton, AB, Canada T6G 2G2.
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Comparison of HER2-Targeted Antibodies for Fluorescence-Guided Surgery in Breast Cancer. Mol Imaging 2021; 2021:5540569. [PMID: 34194285 PMCID: PMC8205604 DOI: 10.1155/2021/5540569] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2020] [Accepted: 01/15/2021] [Indexed: 11/17/2022] Open
Abstract
Background Although therapeutic advances have led to enhanced survival in patients with human epidermal growth factor receptor 2 (HER2)-positive breast cancer, detection of residual disease remains challenging. Here, we examine two approved anti-HER2 monoclonal antibodies (mAbs), trastuzumab and pertuzumab, as potential candidates for the development of immunoconjugates for fluorescence-guided surgery (FGS). Methods mAbs were conjugated to the near-infrared fluorescent (NIRF) dye, IRDye800, and for quantitative in vitro assessment, to the radiometal chelator, desferrioxamine, to enable dual labeling with 89Zr. In vitro binding was evaluated in HER2-overexpressing (BT474, SKBR3) and HER2-negative (MCF7) cell lines. BT474 and MCF7 xenografts were used for in vivo and ex vivo fluorescence imaging. Results In vitro findings demonstrated HER2-mediated binding for both fluorescent immunoconjugates and were in agreement with radioligand assays using dual-labeled immunoconjugates. In vivo and ex vivo studies showed preferential accumulation of the fluorescently-labeled mAbs in tumors and similar tumor-to-background ratios. In vivo HER2 specificity was confirmed by immunohistochemical staining of resected tumors and normal tissues. Conclusions We showed for the first time that fluorescent trastuzumab and pertuzumab immunoconjugates have similar NIRF imaging performance and demonstrated the possibility of performing HER2-targeted FGS with agents that possess distinct epitope specificity.
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Kwon YD, Byun Y, Kim HK. 18F-labelled BODIPY dye as a dual imaging agent: Radiofluorination and applications in PET and optical imaging. Nucl Med Biol 2020; 93:22-36. [PMID: 33276283 DOI: 10.1016/j.nucmedbio.2020.11.004] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Revised: 11/05/2020] [Accepted: 11/11/2020] [Indexed: 12/19/2022]
Abstract
Dual Positron emission tomography (PET)/optical imaging techniques have captured scientific interest for clinical applications due to their potential as an effective tool for visualizing in vivo information such as disease processes. 4,4'-Difluoro-4-bora-3a,4a-diaza-s-indacene (BODIPY) dye has been considered an ideal platform strategy to achieve dual PET/optical imaging due to its photochemical nature and chemical structure. Various radiofluorination methods to prepare [18F]BODIPY dye have been developed and established, ranging from nucleophilic substitution reactions to isotope exchange reactions. In addition, 18F-labelled BODIPY dyes for biologically important targets have been used for in vivo and ex vivo studies. These studies proved the practicality of [18F]BODIPY dyes as a hybrid PET/optical imaging probe. In this review, recent advances in the synthesis and biological evaluation of 18F-labelled BODIPY dyes are described.
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Affiliation(s)
- Young-Do Kwon
- Department of Chemistry, Rice University, Houston, TX 77005, USA; Department of Nuclear Medicine, Molecular Imaging & Therapeutic Medicine Research Center, Jeonbuk National University Medical School and Hospital, Jeonju 54907, Republic of Korea; Research Institute of Clinical Medicine of Jeonbuk National University-Biomedical Research Institute of Jeonbuk National University Hospital, Jeonju 54907, Republic of Korea
| | - Youngjoo Byun
- College of Pharmacy, Korea University, Sejong 30019, Republic of Korea
| | - Hee-Kwon Kim
- Department of Nuclear Medicine, Molecular Imaging & Therapeutic Medicine Research Center, Jeonbuk National University Medical School and Hospital, Jeonju 54907, Republic of Korea; Research Institute of Clinical Medicine of Jeonbuk National University-Biomedical Research Institute of Jeonbuk National University Hospital, Jeonju 54907, Republic of Korea.
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22
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Day AH, Domarkas J, Nigam S, Renard I, Cawthorne C, Burke BP, Bahra GS, Oyston PCF, Fallis IA, Archibald SJ, Pope SJA. Towards dual SPECT/optical bioimaging with a mitochondrial targeting, 99mTc(i) radiolabelled 1,8-naphthalimide conjugate. Dalton Trans 2020; 49:511-523. [PMID: 31844857 DOI: 10.1039/c9dt04024b] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
A series of six different 1,8-naphthalimide conjugated dipicolylamine ligands (L1-6) have been synthesised and characterised. The ligands possess a range of different linker units between the napthalimide fluorophore and dipcolylamine chelator which allow the overall lipophilicity to be tuned. A corresponding series of Re(i) complexes have been synthesised of the form fac-[Re(CO)3(L1-6)]BF4. The absorption and luminescence properties of the ligands and Re(i) complexes were dominated by the intramolecular charge transfer character of the substituted fluorophore (typically absorption ca. 425 nm and emission ca. 520 nm). Photophysical assessments show that some of the variants are moderately bright. Radiolabelling experiments using a water soluble ligand variant (L5) were successfully undertaken and optimised with fac-[99mTc(CO)3(H2O)3]+. Confocal fluorescence microscopy showed that fac-[Re(CO)3(L5)]+ localises in the mitochondria of MCF-7 cells. SPECT/CT imaging experiments on naïve mice showed that fac-[99mTc(CO)3(L5)]+ has a relatively high stability in vivo but did not show any cardiac uptake, demonstrating rapid clearance, predominantly via the biliary system along with a moderate amount cleared renally.
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Affiliation(s)
- Adam H Day
- School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff CF10 3AT, Cymru/Wales, UK.
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Summer D, Petrik M, Mayr S, Hermann M, Kaeopookum P, Pfister J, Klingler M, Rangger C, Haas H, Decristoforo C. Hybrid Imaging Agents for Pretargeting Applications Based on Fusarinine C-Proof of Concept. Molecules 2020; 25:E2123. [PMID: 32370017 PMCID: PMC7249120 DOI: 10.3390/molecules25092123] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2020] [Revised: 04/29/2020] [Accepted: 04/29/2020] [Indexed: 12/16/2022] Open
Abstract
Hybrid imaging combining the beneficial properties of radioactivity and optical imaging within one imaging probe has gained increasing interest in radiopharmaceutical research. In this study, we modified the macrocyclic gallium-68 chelator fusarinine C (FSC) by conjugating a fluorescent moiety and tetrazine (Tz) moieties. The resulting hybrid imaging agents were used for pretargeting applications utilizing click reactions with a trans-cyclooctene (TCO) tagged targeting vector for a proof of principle both in vitro and in vivo. Starting from FSC, the fluorophores Sulfocyanine-5, Sulfocyanine-7, or IRDye800CW were conjugated, followed by introduction of one or two Tz motifs, resulting in mono and dimeric Tz conjugates. Evaluation included fluorescence microscopy, binding studies, logD, protein binding, in vivo biodistribution, µPET (micro-positron emission tomography), and optical imaging (OI) studies. 68Ga-labeled conjugates showed suitable hydrophilicity, high stability, and specific targeting properties towards Rituximab-TCO pre-treated CD20 expressing Raji cells. Biodistribution studies showed fast clearance and low accumulation in non-targeted organs for both SulfoCy5- and IRDye800CW-conjugates. In an alendronate-TCO based bone targeting model the dimeric IRDye800CW-conjugate resulted in specific targeting using PET and OI, superior to the monomer. This proof of concept study showed that the preparation of FSC-Tz hybrid imaging agents for pretargeting applications is feasible, making such compounds suitable for hybrid imaging applications.
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Affiliation(s)
- Dominik Summer
- Department of Nuclear Medicine, Medical University Innsbruck, A-6020 Innsbruck, Austria; (D.S.); (S.M.); (P.K.); (J.P.); (M.K.); (C.R.)
| | - Milos Petrik
- Institute of Molecular and Translational Medicine, Faculty of Medicine and Dentistry, Palacky University Olomouc, 772-00 Olomouc, Czech Republic;
| | - Sonja Mayr
- Department of Nuclear Medicine, Medical University Innsbruck, A-6020 Innsbruck, Austria; (D.S.); (S.M.); (P.K.); (J.P.); (M.K.); (C.R.)
| | - Martin Hermann
- Department of Anaesthesia and Intensive Care, Medical University Innsbruck, A-6020 Innsbruck, Austria;
| | - Piriya Kaeopookum
- Department of Nuclear Medicine, Medical University Innsbruck, A-6020 Innsbruck, Austria; (D.S.); (S.M.); (P.K.); (J.P.); (M.K.); (C.R.)
| | - Joachim Pfister
- Department of Nuclear Medicine, Medical University Innsbruck, A-6020 Innsbruck, Austria; (D.S.); (S.M.); (P.K.); (J.P.); (M.K.); (C.R.)
| | - Maximilian Klingler
- Department of Nuclear Medicine, Medical University Innsbruck, A-6020 Innsbruck, Austria; (D.S.); (S.M.); (P.K.); (J.P.); (M.K.); (C.R.)
| | - Christine Rangger
- Department of Nuclear Medicine, Medical University Innsbruck, A-6020 Innsbruck, Austria; (D.S.); (S.M.); (P.K.); (J.P.); (M.K.); (C.R.)
| | - Hubertus Haas
- Institute of Molecular Biology, Medical University Innsbruck, A-6020 Innsbruck, Austria;
| | - Clemens Decristoforo
- Department of Nuclear Medicine, Medical University Innsbruck, A-6020 Innsbruck, Austria; (D.S.); (S.M.); (P.K.); (J.P.); (M.K.); (C.R.)
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Study on Absorption Mechanism and Tissue Distribution of Fucoidan. Molecules 2020; 25:molecules25051087. [PMID: 32121122 PMCID: PMC7179197 DOI: 10.3390/molecules25051087] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2020] [Revised: 02/22/2020] [Accepted: 02/25/2020] [Indexed: 12/16/2022] Open
Abstract
Fucoidan exhibits several pharmacological activities and is characterized by high safety and the absence of toxic side effects. However, the absorption of fucoidan is not well-characterized. In the present study, fucoidan were labeled with fluorescein isothiocyanate (FITC) and their ability to traverse a monolayer of Caco-2 cells was examined. The apparent permeability coefficients (Papp × 10−6) of FITC-labeled fucoidan (FITC-fucoidan) were 26.23, 20.15, 17.93, 16.11 cm/sec, respectively, at the concentration of 10 μg/mL at 0.5, 1, 1.5 and 2 h. The absorption of FITC-fucoidan was suppressed by inhibitors of clathrin-mediated endocytosis, chlorpromazine, NH4Cl, and Dynasore; the inhibition rates were 84.24%, 74.61%, and 63.94%, respectively. This finding suggested that clathrin-mediated endocytosis was involved in fucoidan transport. Finally, tissue distribution of FITC-fucoidan was studied in vivo after injection of 50 mg/kg body weight into the tail vein of mice. The results showed that FITC-fucoidan targeted kidney and liver, reaching concentrations of 1092.31 and 284.27 μg/g respectively after 0.5 h. In summary, the present work identified the mechanism of absorption of fucoidan and documented its tissue distribution, providing a theoretical basis for the future development of fucoidan applications.
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Bodio E, Denat F, Goze C. BODIPYS and aza-BODIPY derivatives as promising fluorophores for in vivo molecular imaging and theranostic applications. J PORPHYR PHTHALOCYA 2020. [DOI: 10.1142/s1088424619501268] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Since their discovery in 1968, the BODIPYs dyes (4,4-difluoro-4-bora-3a, 4a diaza-s-indacene) have found an exponentially increasing number of applications in a large variety of scientific fields. In particular, studies reporting bioapplications of BODIPYs have increased dramatically. However, most of the time, only in vitro investigations have been reported. The in vivo potential of BODIPYs and aza-BODIPYs is more recent, but considering the number of in vivo studies with BODIPY and aza-BODIPY which have been reported in the last five years, we can now affirm that this family of fluorophores can be considered important as cyanine dyes for future in vivo and even clinical applications. This review aims to present representative examples of recent in vivo applications of BODIPYs or aza-BODIPYs, and to highlight the potential of these dyes for optical molecular imaging.
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Affiliation(s)
- Ewen Bodio
- Institut de Chimie Moléculaire de l’Université de Bourgogne, UMR 6302, CNRS, Université Bourgogne Franche-Comté, 9 Avenue A. Savary, 21078 Dijon Cedex, France
| | - Franck Denat
- Institut de Chimie Moléculaire de l’Université de Bourgogne, UMR 6302, CNRS, Université Bourgogne Franche-Comté, 9 Avenue A. Savary, 21078 Dijon Cedex, France
| | - Christine Goze
- Institut de Chimie Moléculaire de l’Université de Bourgogne, UMR 6302, CNRS, Université Bourgogne Franche-Comté, 9 Avenue A. Savary, 21078 Dijon Cedex, France
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26
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Renard E, Dancer PA, Portal C, Denat F, Prignon A, Goncalves V. Design of Bimodal Ligands of Neurotensin Receptor 1 for Positron Emission Tomography Imaging and Fluorescence-Guided Surgery of Pancreatic Cancer. J Med Chem 2020; 63:2426-2433. [PMID: 31855417 DOI: 10.1021/acs.jmedchem.9b01407] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Neurotensin receptor 1 (NTSR1) is overexpressed in most human pancreatic ductal adenocarcinomas. It makes it an attractive target for the development of pancreatic cancer imaging agents. In this study, we sought to develop a bimodal positron emission tomography (PET)/fluorescent imaging agent capable of specifically targeting these receptors. Starting from the structure of a known NTSR1 agonist, a series of tracers were synthesized, radiometalated with gallium-68, and evaluated in vitro and in vivo, in mice bearing an AsPC-1 xenograft. PET imaging allowed us to identify the compound [68Ga]Ga-NODAGA-Lys(Cy5**)-AEEAc-[Me-Arg8,Tle12]-NT(7-13) as the one with the most promising biodistribution profile, characterized by high tumor uptake (2.56 ± 0.97%ID/g, 1 h post-injection) and rapid elimination from nontargeted organs, through urinary excretion. Fluorescence imaging gave similar results. On this basis, fluorescence-guided resection of tumor masses was successfully carried out on a preclinical model.
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Affiliation(s)
- Emma Renard
- Institut de Chimie Moléculaire de l'Université de Bourgogne, UMR CNRS 6302, Université Bourgogne Franche-Comté, 21000 Dijon, France
| | | | | | - Franck Denat
- Institut de Chimie Moléculaire de l'Université de Bourgogne, UMR CNRS 6302, Université Bourgogne Franche-Comté, 21000 Dijon, France
| | - Aurélie Prignon
- Sorbonne Université, UMS28 Laboratoire d'Imagerie Moléculaire Positonique (LIMP), 75020 Paris, France
| | - Victor Goncalves
- Institut de Chimie Moléculaire de l'Université de Bourgogne, UMR CNRS 6302, Université Bourgogne Franche-Comté, 21000 Dijon, France
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27
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Chen KT, Nieuwenhuizen J, Handula M, Seimbille Y. A novel clickable MSAP agent for dual fluorescence/nuclear labeling of biovectors. Org Biomol Chem 2020; 18:6134-6139. [DOI: 10.1039/d0ob01222j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Simple and efficient synthesis of dual-modality imaging agents for preoperative surgical planning and intraoperative surgical guidance.
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Affiliation(s)
- Kuo-Ting Chen
- Erasmus MC
- University Medical Center Rotterdam
- Department of Radiology and Nuclear Medicine
- Rotterdam
- The Netherlands
| | - Jim Nieuwenhuizen
- Erasmus MC
- University Medical Center Rotterdam
- Department of Radiology and Nuclear Medicine
- Rotterdam
- The Netherlands
| | - Maryana Handula
- Erasmus MC
- University Medical Center Rotterdam
- Department of Radiology and Nuclear Medicine
- Rotterdam
- The Netherlands
| | - Yann Seimbille
- Erasmus MC
- University Medical Center Rotterdam
- Department of Radiology and Nuclear Medicine
- Rotterdam
- The Netherlands
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28
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Ahn SH, Iuliano JN, Boros E. Trivalent metal complex geometry of the substrate governs cathepsin B enzymatic cleavage rate. Chem Commun (Camb) 2020; 56:7289-7292. [DOI: 10.1039/d0cc02862b] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The identity of the trivalent metal ion controls the rate of the enzymatic cleavage of a series of metal-complexed cathepsin B substrates. Increasing the distance between the metal complex and the enzyme cleavage site diminishes this effect.
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Affiliation(s)
- Shin Hye Ahn
- Department of Chemistry
- Stony Brook University
- 100 Nicolls Rd
- Stony Brook
- New York
| | - James N. Iuliano
- Department of Chemistry
- Stony Brook University
- 100 Nicolls Rd
- Stony Brook
- New York
| | - Eszter Boros
- Department of Chemistry
- Stony Brook University
- 100 Nicolls Rd
- Stony Brook
- New York
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29
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van Oosterom MN, Meershoek P, Welling MM, Pinto F, Matthies P, Simon H, Wendler T, Navab N, van de Velde CJH, van der Poel HG, van Leeuwen FWB. Extending the Hybrid Surgical Guidance Concept With Freehand Fluorescence Tomography. IEEE TRANSACTIONS ON MEDICAL IMAGING 2020; 39:226-235. [PMID: 31247546 DOI: 10.1109/tmi.2019.2924254] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Within image-guided surgery, 'hybrid' guidance technologies have been used to integrate the complementary features of radioactive guidance and fluorescence guidance. Here, we explore how the generation of a novel freehand fluorescence (fhFluo) imaging approach complements freehand SPECT (fhSPECT) in a hybrid setup. Near-infrared optical tracking was used to register the position and the orientation of a hybrid opto-nuclear detection probe while recording its readings. Dedicated look-up table models were used for 3D reconstruction. In phantom and excised tissue settings (i.e., flat-surface human skin explants), fhSPECT and fhFluo were investigated for image resolution and in-tissue signal penetration. Finally, the combined potential of these freehand technologies was evaluated on prostate and lymph node specimens of prostate cancer patients receiving prostatectomy and sentinel lymph node dissection (tracers: indocyanine green (ICG) +99m Tc-nanocolloid or ICG-99mTc-nanocolloid). After hardware and software integration, the hybrid setup created 3D nuclear and fluorescence tomography scans. The imaging resolution of fhFluo (1 mm) was superior to that of fhSPECT (6 mm). Fluorescence modalities were confined to a maximum depth of 0.5 cm, while nuclear modalities were usable at all evaluated depths (<2 cm). Both fhSPECT and fhFluo enabled augmented- and virtual-reality navigation toward segmented image hotspots, including relative hotspot quantification with an accuracy of 3.9% and 4.1%. Imaging in surgical specimens confirmed these trends (fhSPECT: in-depth detectability, low resolution, and fhFluo: superior resolution, superficial detectability). Overall, when radioactive and fluorescent tracer signatures are used, fhFluo has complementary value to fhSPECT. Combined the freehand technologies render a unique hybrid imaging and navigation modality.
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30
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van Leeuwen FWB, Schottelius M, Brouwer OR, Vidal-Sicart S, Achilefu S, Klode J, Wester HJ, Buckle T. Trending: Radioactive and Fluorescent Bimodal/Hybrid Tracers as Multiplexing Solutions for Surgical Guidance. J Nucl Med 2019; 61:13-19. [PMID: 31712326 DOI: 10.2967/jnumed.119.228684] [Citation(s) in RCA: 49] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2019] [Accepted: 10/22/2019] [Indexed: 12/25/2022] Open
Abstract
By contributing to noninvasive molecular imaging and radioguided surgery, nuclear medicine has been instrumental in the realization of precision medicine. During the last decade, it has also become apparent that nuclear medicine (e.g., in the form of bimodal/hybrid tracers) can help to empower fluorescence-guided surgery. More specifically, when using hybrid tracers, lesions can be noninvasively identified and localized with a high sensitivity and precision (guided by the radioisotope) and ultimately resected under real-time optical guidance (fluorescent dye). This topical review discusses early clinical successes, preclinical directions, and key aspects that could have an impact on the future of this field.
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Affiliation(s)
- Fijs W B van Leeuwen
- Interventional Molecular Imaging Laboratory, Department of Radiology, Leiden University Medical Center, Leiden, The Netherlands .,Department of Urology, Netherlands Cancer Institute, Antoni van Leeuwenhoek Hospital, Amsterdam, The Netherlands
| | - Margret Schottelius
- Radiopharmaceutical Radiochemistry, Department of Chemistry, TUM School of Medicine, Technical University Munich, Munich, Germany
| | - Oscar R Brouwer
- Interventional Molecular Imaging Laboratory, Department of Radiology, Leiden University Medical Center, Leiden, The Netherlands.,Department of Urology, Netherlands Cancer Institute, Antoni van Leeuwenhoek Hospital, Amsterdam, The Netherlands
| | - Sergi Vidal-Sicart
- Diagnostic Imaging Institute, Hospital Clinic Barcelona, Barcelona, Spain
| | - Samuel Achilefu
- Optical Radiology Lab, Department of Radiology, Mallinckrodt Institute of Radiology, Washington University School of Medicine, St. Louis, Missouri; and
| | - Joachim Klode
- Clinic for Dermatology, University Clinic Essen, Essen, Germany
| | - Hans-Jurgen Wester
- Diagnostic Imaging Institute, Hospital Clinic Barcelona, Barcelona, Spain
| | - Tessa Buckle
- Interventional Molecular Imaging Laboratory, Department of Radiology, Leiden University Medical Center, Leiden, The Netherlands.,Department of Urology, Netherlands Cancer Institute, Antoni van Leeuwenhoek Hospital, Amsterdam, The Netherlands
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31
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Schmitthenner HF, Dobson DE, Jones KG, Akporji N, Soika DQM, Nastiuk KL, Hornak JP. Modular Synthesis of DOTA-Metal-Based PSMA-Targeted Imaging Agents for MRI and PET of Prostate Cancer. Chemistry 2019; 25:13848-13854. [PMID: 31364213 PMCID: PMC6910127 DOI: 10.1002/chem.201903390] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2019] [Indexed: 12/11/2022]
Abstract
A practical, convergent synthesis of prostate-specific membrane antigen (PSMA) targeted imaging agents for MRI, PET, and SPECT of prostate cancer has been developed. In this approach, metals chelated to 1,4,7,10-tetraazacyclododecane-1,4,7,10-tetraacetic acid (DOTA) were placed on the side chains of lysine early in the synthesis to form imaging modules. These are coupled to targeting modules, in this case consisting of the PSMA-binding urea DCL, bonded to an activated linker. The modular approach to targeted molecular imaging agents (TMIAs) offers distinct advantages. By chelating the MRI contrast metal Gd early, it doubles as a protecting group for DOTA. Standard coupling and deprotection steps may be utilized to assemble the modules into peptides, and the need for tri-tert-butyl protection of DOTA requiring removal by strong acid is averted. This enables mild conjugation of the imaging module to a wide variety of targeting agents in the final step. It was further discovered that two labile metals, La3+ or Ce3+ , can be used as placeholders in DOTA during the synthesis, then transmetalated in mild acid by Cu2+ , Ga3+ , In3+ , and Y3+ , metals used in PET/SPECT. This enables the efficient synthesis of nonradioactive analogues of targeted molecular imaging agents that may be transported or stored until needed. A simple and mild two-step transmetalation, involving de-metalation in dilute acid, followed by rapid chelation of the radioactive metal, may be conveniently performed later at the clinic to provide the TMIAs for PET or SPECT.
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Affiliation(s)
- Hans F Schmitthenner
- School of Chemistry and Materials Science, Rochester Institute of Technology, Rochester, NY, 14623, USA
| | - Damien E Dobson
- School of Chemistry and Materials Science, Rochester Institute of Technology, Rochester, NY, 14623, USA
| | - Kelsea G Jones
- School of Chemistry and Materials Science, Rochester Institute of Technology, Rochester, NY, 14623, USA
| | - Nnamdi Akporji
- School of Chemistry and Materials Science, Rochester Institute of Technology, Rochester, NY, 14623, USA
| | - Dana Q M Soika
- Golisano School of Life Sciences, Rochester Institute of Technology, Rochester, NY, 14623, USA
| | - Kent L Nastiuk
- Department of Cancer Genetics and Genomics, Department of Urology, Roswell Park Comprehensive Cancer Center, Buffalo, NY, 14263, USA
| | - Joseph P Hornak
- School of Chemistry and Materials Science, Rochester Institute of Technology, Rochester, NY, 14623, USA
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32
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Zhu S, Tian R, Antaris AL, Chen X, Dai H. Near-Infrared-II Molecular Dyes for Cancer Imaging and Surgery. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2019; 31:e1900321. [PMID: 31025403 PMCID: PMC6555689 DOI: 10.1002/adma.201900321] [Citation(s) in RCA: 456] [Impact Index Per Article: 91.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/15/2019] [Revised: 03/03/2019] [Indexed: 05/05/2023]
Abstract
Fluorescence bioimaging affords a vital tool for both researchers and surgeons to molecularly target a variety of biological tissues and processes. This review focuses on summarizing organic dyes emitting at a biological transparency window termed the near-infrared-II (NIR-II) window, where minimal light interaction with the surrounding tissues allows photons to travel nearly unperturbed throughout the body. NIR-II fluorescence imaging overcomes the penetration/contrast bottleneck of imaging in the visible region, making it a remarkable modality for early diagnosis of cancer and highly sensitive tumor surgery. Due to their convenient bioconjugation with peptides/antibodies, NIR-II molecular dyes are desirable candidates for targeted cancer imaging, significantly overcoming the autofluorescence/scattering issues for deep tissue molecular imaging. To promote the clinical translation of NIR-II bioimaging, advancements in the high-performance small molecule-derived probes are critically important. Here, molecules with clinical potential for NIR-II imaging are discussed, summarizing the synthesis and chemical structures of NIR-II dyes, chemical and optical properties of NIR-II dyes, bioconjugation and biological behavior of NIR-II dyes, whole body imaging with NIR-II dyes for cancer detection and surgery, as well as NIR-II fluorescence microscopy imaging. A key perspective on the direction of NIR-II molecular dyes for cancer imaging and surgery is also discussed.
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Affiliation(s)
- Shoujun Zhu
- Laboratory of Molecular Imaging and Nanomedicine, National Institute of Biomedical Imaging and Bioengineering (NIBIB), National Institutes of Health (NIH), Bethesda, MD, 20892, USA
| | - Rui Tian
- Laboratory of Molecular Imaging and Nanomedicine, National Institute of Biomedical Imaging and Bioengineering (NIBIB), National Institutes of Health (NIH), Bethesda, MD, 20892, USA
| | | | - Xiaoyuan Chen
- Laboratory of Molecular Imaging and Nanomedicine, National Institute of Biomedical Imaging and Bioengineering (NIBIB), National Institutes of Health (NIH), Bethesda, MD, 20892, USA
| | - Hongjie Dai
- Department of Chemistry, Stanford University, Stanford, CA, 94305, USA
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33
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Hernandez Vargas S, Kossatz S, Voss J, Ghosh SC, Tran Cao HS, Simien J, Reiner T, Dhingra S, Fisher WE, Azhdarinia A. Specific Targeting of Somatostatin Receptor Subtype-2 for Fluorescence-Guided Surgery. Clin Cancer Res 2019; 25:4332-4342. [PMID: 31015345 DOI: 10.1158/1078-0432.ccr-18-3312] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2018] [Revised: 03/11/2019] [Accepted: 04/18/2019] [Indexed: 12/24/2022]
Abstract
PURPOSE Clinically available intraoperative imaging tools to assist surgeons in identifying occult lesions are limited and partially responsible for the high rate of disease recurrence in patients with neuroendocrine tumors (NET). Using the established clinical efficacy of radiolabeled somatostatin analogs as a model, we demonstrate the ability of a fluorescent somatostatin analog to selectively target tumors that overexpress somatostatin receptor subtype-2 (SSTR2) and demonstrate utility for fluorescence-guided surgery (FGS). EXPERIMENTAL DESIGN A multimodality chelator (MMC) was used as a "radioactive linker" to synthesize the fluorescently labeled somatostatin analog, 67/68Ga-MMC(IR800)-TOC. In vivo studies were performed to determine the pharmacokinetic profile, optimal imaging time point, and specificity for SSTR2-expressing tissues. Meso- and microscopic imaging of resected tissues and frozen sections were also performed to further assess specific binding, and binding to human NETs was examined using surgical biospecimens from patients with pancreatic NETs. RESULTS Direct labeling with 67Ga/68Ga provided quantitative biodistribution analysis that was in agreement with fluorescence data. Receptor-mediated uptake was observed in vivo and ex vivo at the macro-, meso-, and microscopic scales. Surgical biospecimens from patients with pancreatic NETs also displayed receptor-specific agent binding, allowing clear delineation of tumor boundaries that matched pathology findings. CONCLUSIONS The radioactive utility of the MMC allowed us to validate the binding properties of a novel FGS agent that could have a broad impact on cancer outcomes by equipping surgeons with real-time intraoperative imaging capabilities.
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Affiliation(s)
- Servando Hernandez Vargas
- The Brown Foundation Institute of Molecular Medicine, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, Texas
| | - Susanne Kossatz
- Department of Radiology, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Julie Voss
- The Brown Foundation Institute of Molecular Medicine, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, Texas
| | - Sukhen C Ghosh
- The Brown Foundation Institute of Molecular Medicine, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, Texas
| | - Hop S Tran Cao
- Michael E. DeBakey Department of Surgery, Baylor College of Medicine, Houston, Texas
| | - Jo Simien
- The Brown Foundation Institute of Molecular Medicine, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, Texas
| | - Thomas Reiner
- Department of Radiology, Memorial Sloan Kettering Cancer Center, New York, New York.,Department of Radiology, Weill Cornell Medical College, New York, New York
| | - Sadhna Dhingra
- Department of Pathology and Immunology, Baylor College of Medicine, Houston, Texas
| | - William E Fisher
- Michael E. DeBakey Department of Surgery, Baylor College of Medicine, Houston, Texas
| | - Ali Azhdarinia
- The Brown Foundation Institute of Molecular Medicine, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, Texas.
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Welling MM, Hensbergen AW, Bunschoten A, Velders AH, Scheper H, Smits WK, Roestenberg M, van Leeuwen FWB. Fluorescent imaging of bacterial infections and recent advances made with multimodal radiopharmaceuticals. Clin Transl Imaging 2019. [DOI: 10.1007/s40336-019-00322-7] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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35
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Zettlitz KA, Waldmann CM, Tsai WTK, Tavaré R, Collins J, Murphy JM, Wu AM. A Dual-Modality Linker Enables Site-Specific Conjugation of Antibody Fragments for 18F-Immuno-PET and Fluorescence Imaging. J Nucl Med 2019; 60:1467-1473. [PMID: 30877181 DOI: 10.2967/jnumed.118.223560] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2018] [Accepted: 03/06/2019] [Indexed: 12/30/2022] Open
Abstract
Antibody-based dual-modality (PET/fluorescence) imaging enables both presurgery antigen-specific immuno-PET for noninvasive whole-body evaluation and intraoperative fluorescence for visualization of superficial tissue layers for image-guided surgery. Methods: We developed a universal dual-modality linker (DML) that facilitates site-specific conjugation to a cysteine residue-bearing antibody fragment, introduction of a commercially available fluorescent dye (via an amine-reactive prosthetic group), and rapid and efficient radiolabeling via click chemistry with 18F-labeled trans-cyclooctene (18F-TCO). To generate a dual-modality antibody fragment-based imaging agent, the DML was labeled with the far-red dye sulfonate cyanine 5 (sCy5), site-specifically conjugated to the C-terminal cysteine of the anti-prostate stem cell antigen (PSCA) cys-diabody A2, and subsequently radiolabeled by click chemistry with 18F-TCO. The new imaging probe was evaluated in a human PSCA-positive prostate cancer xenograft model by sequential immuno-PET and optical imaging. Uptake in target tissues was confirmed by ex vivo biodistribution. Results: We successfully synthesized a DML for conjugation of a fluorescent dye and 18F. The anti-PSCA cys-diabody A2 was site-specifically conjugated with either DML or sCy5 and radiolabeled via click chemistry with 18F-TCO. Immuno-PET imaging confirmed in vivo antigen-specific targeting of prostate cancer xenografts as early as 1 h after injection. Rapid renal clearance of the 50-kDa antibody fragment enables same-day imaging. Optical imaging showed antigen-specific fluorescent signal in PSCA-positive xenografts and high contrast to surrounding tissue and PSCA-negative xenografts. Conclusion: The DML enables site-specific conjugation away from the antigen-binding site of antibody fragments, with a controlled linker-to-protein ratio, and combines signaling moieties for 2 imaging systems into 1 molecule. Dual-modality imaging could provide both noninvasive whole-body imaging with organ-level biodistribution and fluorescence image-guided identification of tumor margins during surgery.
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Affiliation(s)
- Kirstin A Zettlitz
- Crump Institute for Molecular Imaging, Department of Molecular and Medical Pharmacology, David Geffen School of Medicine at UCLA, Los Angeles, California
| | - Christopher M Waldmann
- Crump Institute for Molecular Imaging, Department of Molecular and Medical Pharmacology, David Geffen School of Medicine at UCLA, Los Angeles, California
| | - Wen-Ting K Tsai
- Crump Institute for Molecular Imaging, Department of Molecular and Medical Pharmacology, David Geffen School of Medicine at UCLA, Los Angeles, California
| | - Richard Tavaré
- Crump Institute for Molecular Imaging, Department of Molecular and Medical Pharmacology, David Geffen School of Medicine at UCLA, Los Angeles, California
| | - Jeffrey Collins
- Crump Institute for Molecular Imaging, Department of Molecular and Medical Pharmacology, David Geffen School of Medicine at UCLA, Los Angeles, California
| | - Jennifer M Murphy
- Crump Institute for Molecular Imaging, Department of Molecular and Medical Pharmacology, David Geffen School of Medicine at UCLA, Los Angeles, California
| | - Anna M Wu
- Crump Institute for Molecular Imaging, Department of Molecular and Medical Pharmacology, David Geffen School of Medicine at UCLA, Los Angeles, California
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37
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Hernandez Vargas S, Ghosh SC, Azhdarinia A. New Developments in Dual-Labeled Molecular Imaging Agents. J Nucl Med 2019; 60:459-465. [PMID: 30733318 DOI: 10.2967/jnumed.118.213488] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2018] [Accepted: 01/24/2019] [Indexed: 12/11/2022] Open
Abstract
Intraoperative detection of tumors has had a profound impact on how cancer surgery is performed and addresses critical unmet needs in surgical oncology. Tumor deposits, margins, and residual cancer can be imaged through the use of fluorescent contrast agents during surgical procedures to complement visual and tactile guidance. The combination of fluorescent and nuclear contrast into a multimodality agent builds on these capabilities by adding quantitative, noninvasive nuclear imaging capabilities to intraoperative imaging. This review focuses on new strategies for the development and evaluation of targeted dual-labeled molecular imaging agents while highlighting the successful first-in-human application of this technique.
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Affiliation(s)
- Servando Hernandez Vargas
- Brown Foundation Institute of Molecular Medicine, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, Texas
| | - Sukhen C Ghosh
- Brown Foundation Institute of Molecular Medicine, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, Texas
| | - Ali Azhdarinia
- Brown Foundation Institute of Molecular Medicine, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, Texas
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38
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Perrin DM. Organotrifluoroborates as prosthetic groups for Single-Step F18-Labeling of Complex Molecules. Curr Opin Chem Biol 2018; 45:86-94. [DOI: 10.1016/j.cbpa.2018.03.001] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2018] [Revised: 02/23/2018] [Accepted: 03/07/2018] [Indexed: 12/11/2022]
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39
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Wang B, Zhang Y, Zhang L. Recent progress on micro- and nano-robots: towards in vivo tracking and localization. Quant Imaging Med Surg 2018; 8:461-479. [PMID: 30050781 PMCID: PMC6037952 DOI: 10.21037/qims.2018.06.07] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2018] [Accepted: 06/18/2018] [Indexed: 12/16/2022]
Affiliation(s)
- Ben Wang
- Department of Mechanical and Automation Engineering, The Chinese University of Hong Kong, Hong Kong, China
- Department of Biomedical Engineering, The Chinese University of Hong Kong, Hong Kong, China
| | - Yabin Zhang
- Department of Mechanical and Automation Engineering, The Chinese University of Hong Kong, Hong Kong, China
- Department of Biomedical Engineering, The Chinese University of Hong Kong, Hong Kong, China
| | - Li Zhang
- Department of Mechanical and Automation Engineering, The Chinese University of Hong Kong, Hong Kong, China
- Chow Yuk Ho Technology Centre for Innovative Medicine, The Chinese University of Hong Kong, Hong Kong, China
- T Stone Robotics Institute, The Chinese University of Hong Kong, Hong Kong, China
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40
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Abstract
Progressive technological advancements in imaging have significantly improved the preoperative sensitivity for the detection of very small foci of regionally- or hematogenously-metastatic colorectal cancer. Unfortunately, this information has not translated to continued linear gains in patient survival, and might even result in the false-positive upstaging of some cases: these are two conundrums in the imaging of colorectal cancer. Both conundrums might be resolved by the widespread use of real-time imaging guidance during operative procedures. This might open the way for the widespread use of fluorodeoxyglucose PET/CT for the initial staging of patients with colorectal cancer.
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Affiliation(s)
- Nathan C Hall
- Department of Radiology, Hospital of the University of Pennsylvania, 3400 Spruce Street, Philadelphia, PA 19104, USA; Diagnostic Imaging, Nuclear Medicine, Corporal Michael J. Crescenz VA Medical Center, 3900 Woodland Avenue, Philadelphia, PA 19104, USA; Department of Surgery, Division of Surgical Oncology, The Ohio State University Wexner Medical Center, 410 West 10th Avenue, Columbus, OH 43210, USA.
| | - Alexander T Ruutiainen
- Diagnostic Radiology, Corporal Michael J. Crescenz VA Medical Center, 3900 Woodland Avenue, Philadelphia, PA 19104, USA
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41
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Akhter KF, Mumin MA, Lui EMK, Charpentier PA. Fabrication of fluorescent labeled ginseng polysaccharide nanoparticles for bioimaging and their immunomodulatory activity on macrophage cell lines. Int J Biol Macromol 2017; 109:254-262. [PMID: 29229245 DOI: 10.1016/j.ijbiomac.2017.12.050] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2017] [Revised: 11/30/2017] [Accepted: 12/07/2017] [Indexed: 12/20/2022]
Abstract
Polysaccharides are a major active component of American ginseng root showing various biological activities including anti-carcinogenic, anti-aging, immunostimulatory and antioxidant effects. Although their biological activity has been reported by several groups, no research has explored their cellular uptake and biodistribution, owing to the lack of suitable detection techniques in living cells. This work examines a novel, simple and efficient fluorescent labeling procedure of ginseng polysaccharides (PS), in order to examine their cellular distribution using confocal microscopy. This procedure utilized a one-pot strategy with fluorescein-5-thiosemicarbazide (FTSC) to introduce a thiosemicarbazide group onto the aldehyde group at the reducing saccharide end to form a stable amino derivative through reductive amination. This polysaccharide-FTSC derivative was then characterized by GPC, UV, FTIR, photoluminescence and fluorescence microscopy to confirm attachment and any structural changes. The results demonstrated that the labeled ginseng PS nanostructure showed high fluorescence with minimal changes in PS molecular weight. The labeled PS exhibited almost no cytotoxicity effect against tumor induced macrophage cell lines (RAW 264.7) while retaining high immunostimulating activity similar to the non-labeled ginseng PS. Therefore, the developed approach provides a convenient and highly efficient fluorescent labeling procedure for understanding the mechanism of ginseng PS uptake in macrophage cell lines.
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Affiliation(s)
- Kazi Farida Akhter
- Chemical and Biochemical Engineering, University of Western Ontario, London, Ontario, N6A 5B9, Canada
| | - Md Abdul Mumin
- Chemical and Biochemical Engineering, University of Western Ontario, London, Ontario, N6A 5B9, Canada
| | - Edmund M K Lui
- Physiology and Pharmacology, University of Western Ontario, London, Ontario, N6A 5C1, Canada
| | - Paul A Charpentier
- Chemical and Biochemical Engineering, University of Western Ontario, London, Ontario, N6A 5B9, Canada; Biomedical Engineering, University of Western Ontario, London, Ontario, N6A 5B9, Canada.
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42
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van Oosterom MN, Meershoek P, KleinJan GH, Hendricksen K, Navab N, van de Velde CJH, van der Poel HG, van Leeuwen FWB. Navigation of Fluorescence Cameras during Soft Tissue Surgery-Is it Possible to Use a Single Navigation Setup for Various Open and Laparoscopic Urological Surgery Applications? J Urol 2017; 199:1061-1068. [PMID: 29174485 DOI: 10.1016/j.juro.2017.09.160] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/02/2017] [Indexed: 01/09/2023]
Abstract
PURPOSE Real-time visualization fluorescence imaging can guide surgeons during tissue resection. Unfortunately tissue induced signal attenuation limits the value of this technique to superficial applications. By positioning the fluorescence camera via a dedicated navigation setup we reasoned that the technology could be made compatible with deeper lesions, increasing its impact on clinical care. Such an impact would benefit from the ability to implement the navigation technology in different surgical settings. For that reason we evaluated whether a single fluorescence camera could be navigated toward targeted lesions during open and laparoscopic surgery. MATERIALS AND METHODS A fluorescence camera with scopes available for open and laparoscopic procedures was integrated with a navigation platform. Lymph nodes identified on SPECT/CT (single photon emission computerized tomography/computerized tomography) or free-hand single photon emission computerized tomography acted as navigation targets and were displayed as augmented overlays in the fluorescence camera video feed. The accuracy of this setup was evaluated in a phantom study of 4 scans per single photon emission computerized tomography imaging modality. This was followed by 4 first in human translations into sentinel lymph node biopsy procedures for penile (open surgery) and prostate (laparoscopic surgery) cancer. RESULTS Overall the phantom studies revealed a tool-target distance accuracy of 2.1 mm for SPECT/CT and 3.2 mm for freehand single photon emission computerized tomography, and an augmented reality registration accuracy of 1.1 and 2.2 mm, respectively. Subsequently open and laparoscopic navigation efforts were accurate enough to localize the fluorescence signals of the targeted tissues in vivo. CONCLUSIONS The phantom and human studies performed suggested that the single navigation setup is applicable in various open and laparoscopic urological surgery applications. Further evaluation in larger patient groups with a greater variety of malignancies is recommended to strengthen these results.
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Affiliation(s)
- Matthias N van Oosterom
- Interventional Molecular Imaging Laboratory, Department of Radiology, Leiden University Medical Center, Leiden, The Netherlands; Department of Surgery, Leiden University Medical Center, Leiden, The Netherlands
| | - Philippa Meershoek
- Interventional Molecular Imaging Laboratory, Department of Radiology, Leiden University Medical Center, Leiden, The Netherlands; Department of Urology, The Netherlands Cancer Institute-Antoni van Leeuwenhoek Hospital, Amsterdam, The Netherlands
| | - Gijs H KleinJan
- Interventional Molecular Imaging Laboratory, Department of Radiology, Leiden University Medical Center, Leiden, The Netherlands; Department of Urology, The Netherlands Cancer Institute-Antoni van Leeuwenhoek Hospital, Amsterdam, The Netherlands
| | - Kees Hendricksen
- Department of Urology, The Netherlands Cancer Institute-Antoni van Leeuwenhoek Hospital, Amsterdam, The Netherlands
| | - Nassir Navab
- Computer Aided Medical Procedures, Technische Universität München, Institut für Informatik, Garching bei München, Germany; Computer Aided Medical Procedures, Johns Hopkins University, Baltimore, Maryland
| | | | - Henk G van der Poel
- Department of Urology, The Netherlands Cancer Institute-Antoni van Leeuwenhoek Hospital, Amsterdam, The Netherlands
| | - Fijs W B van Leeuwen
- Interventional Molecular Imaging Laboratory, Department of Radiology, Leiden University Medical Center, Leiden, The Netherlands; Department of Urology, The Netherlands Cancer Institute-Antoni van Leeuwenhoek Hospital, Amsterdam, The Netherlands.
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43
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Damont A, Boisgard R, Dollé F, Hollocou M, Kuhnast B. Avidin/Biotin Bioinspired Platform for Dual In Vivo 18F-PET/NIRF Molecular Imaging. Bioconjug Chem 2017; 28:2524-2529. [DOI: 10.1021/acs.bioconjchem.7b00536] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Affiliation(s)
- Annelaure Damont
- IMIV, Service Hospitalier
Frédéric Joliot, CEA, Inserm, Université Paris Sud, CNRS, Université Paris-Saclay, Orsay, France
| | - Raphael Boisgard
- IMIV, Service Hospitalier
Frédéric Joliot, CEA, Inserm, Université Paris Sud, CNRS, Université Paris-Saclay, Orsay, France
| | - Frédéric Dollé
- IMIV, Service Hospitalier
Frédéric Joliot, CEA, Inserm, Université Paris Sud, CNRS, Université Paris-Saclay, Orsay, France
| | - Morgane Hollocou
- IMIV, Service Hospitalier
Frédéric Joliot, CEA, Inserm, Université Paris Sud, CNRS, Université Paris-Saclay, Orsay, France
| | - Bertrand Kuhnast
- IMIV, Service Hospitalier
Frédéric Joliot, CEA, Inserm, Université Paris Sud, CNRS, Université Paris-Saclay, Orsay, France
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44
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Spycher PR, Amann CA, Wehrmüller JE, Hurwitz DR, Kreis O, Messmer D, Ritler A, Küchler A, Blanc A, Béhé M, Walde P, Schibli R. Dual, Site-Specific Modification of Antibodies by Using Solid-Phase Immobilized Microbial Transglutaminase. Chembiochem 2017; 18:1923-1927. [PMID: 28771896 DOI: 10.1002/cbic.201700188] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2017] [Indexed: 12/11/2022]
Abstract
Microbial transglutaminase (MTG) was stably solid-phase immobilized on glass microbeads by using a second-generation dendronized polymer. Immobilized MTG enabled the efficient generation of site-specifically conjugated proteins, including antibody fragments, as well as whole antibodies through distinct glutamines and, unprecedentedly, also through lysines with various bifunctional substrates with defined stoichiometries. With this method, we generated dual, site-specifically modified antibodies comprising a fluorescent probe and a metal chelator for radiolabeling-a strategy anticipated to design antibodies for imaging and simultaneous therapy. Furthermore, we provide evidence that immobilized MTG features higher siteselectivity than soluble MTG.
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Affiliation(s)
- Philipp R Spycher
- Center for Radiopharmaceutical Sciences ETH-PSI-USZ, Paul Scherrer Institute, 5232, Villigen PSI, Switzerland
| | - Christian A Amann
- Center for Radiopharmaceutical Sciences ETH-PSI-USZ, Paul Scherrer Institute, 5232, Villigen PSI, Switzerland
| | - Jöri E Wehrmüller
- Center for Radiopharmaceutical Sciences ETH-PSI-USZ, Paul Scherrer Institute, 5232, Villigen PSI, Switzerland
| | - David R Hurwitz
- Center for Radiopharmaceutical Sciences ETH-PSI-USZ, Paul Scherrer Institute, 5232, Villigen PSI, Switzerland
| | - Olivier Kreis
- Center for Radiopharmaceutical Sciences ETH-PSI-USZ, Paul Scherrer Institute, 5232, Villigen PSI, Switzerland
| | - Daniel Messmer
- Laboratory of Polymer Chemistry, Department of Materials, ETH Zürich, Vladimir-Prelog-Weg 5, 8093, Zürich, Switzerland
| | - Andreas Ritler
- Center for Radiopharmaceutical Sciences ETH-PSI-USZ, Paul Scherrer Institute, 5232, Villigen PSI, Switzerland.,Laboratory of Organic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zürich, Vladimir-Prelog-Weg 4, 8093, Zürich, Switzerland
| | - Andreas Küchler
- Laboratory of Polymer Chemistry, Department of Materials, ETH Zürich, Vladimir-Prelog-Weg 5, 8093, Zürich, Switzerland
| | - Alain Blanc
- Center for Radiopharmaceutical Sciences ETH-PSI-USZ, Paul Scherrer Institute, 5232, Villigen PSI, Switzerland
| | - Martin Béhé
- Center for Radiopharmaceutical Sciences ETH-PSI-USZ, Paul Scherrer Institute, 5232, Villigen PSI, Switzerland
| | - Peter Walde
- Laboratory of Polymer Chemistry, Department of Materials, ETH Zürich, Vladimir-Prelog-Weg 5, 8093, Zürich, Switzerland
| | - Roger Schibli
- Center for Radiopharmaceutical Sciences ETH-PSI-USZ, Paul Scherrer Institute, 5232, Villigen PSI, Switzerland.,Institute of Pharmaceutical Sciences, Department of Chemistry and Applied Biosciences, ETH Zürich, Vladimir-Prelog-Weg 4, 8093, Zürich, Switzerland
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45
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Gupta P, Wentland JA, Leal M, Ma D, Roach R, Esparza A, King L, Spilker ME, Bagi C, Winkelmann CT, Giddabasappa A. Assessment of near-infrared fluorophores to study the biodistribution and tumor targeting of an IL13 receptor α2 antibody by fluorescence molecular tomography. Oncotarget 2017; 8:57231-57245. [PMID: 28915667 PMCID: PMC5593638 DOI: 10.18632/oncotarget.19569] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2017] [Accepted: 07/03/2017] [Indexed: 01/26/2023] Open
Abstract
Non-invasive imaging using radiolabels is a common technique used to study the biodistribution of biologics. Due to the limited shelf-life of radiolabels and the requirements of specialized labs, non-invasive optical imaging is an attractive alternative for preclinical studies. Previously, we demonstrated the utility of fluorescence molecular tomography (FMT) an optical imaging modality in evaluating the biodistribution of antibody-drug conjugates. As FMT is a relatively new technology, few fluorophores have been validated for in vivo imaging. The goal of this study was to characterize and determine the utility of near-infrared (NIR) fluorophores for biodistribution studies using interleukin-13 receptor subunit alpha-2 antibody (IL13Rα2-Ab). Eight fluorophores (ex/em: 630/800 nm) with an N-hydroxysuccinimide (NHS) linker were evaluated for Ab conjugation. The resulting antibody-fluorophore (Ab-F) conjugates were evaluated in vitro for degree of conjugation, stability and target-binding, followed by in vivo/ex vivo FMT imaging to determine biodistribution in a xenograft model. The Ab-F conjugates (except Ab-DyLight800) showed good in vitro stability and antigen binding. All Ab-F conjugates (except for Ab-BOD630) resulted in a quantifiable signal in vivo and had similar biodistribution profiles, with peak tumor accumulation between 6 and 24 h post-injection. In vivo/ex vivo FMT imaging showed 17–34% ID/g Ab uptake by the tumor at 96 h. Overall, this is the first study to characterize the biodistribution of an Ab using eight NIR fluorophores. Our results show that 3-dimensional optical imaging is a valuable technology to understand biodistribution and targeting, but a careful selection of the fluorophore for each Ab is warranted.
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Affiliation(s)
- Parul Gupta
- Global Science and Technology, Comparative Medicine, Pfizer, Inc., La Jolla, CA, USA
| | - Jo-Ann Wentland
- Pharmacokinetics and Drug Metabolism, Pfizer, Inc., New York NY, USA
| | - Mauricio Leal
- Pharmacokinetics and Drug Metabolism, Pfizer, Inc., New York NY, USA
| | - Dangshe Ma
- Oncology Research Unit, Pfizer, Inc., Pearl River, NY, USA.,Current affiliation: Regeneron Pharmaceuticals, Tarrytown, NY, USA
| | - Rachel Roach
- Center for Therapeutic Innovation, Pfizer, Inc., La Jolla, CA, USA
| | | | - Lindsay King
- Pharmacokinetics and Drug Metabolism, Pfizer, Inc., New York NY, USA
| | - Mary E Spilker
- Pharmacokinetics and Drug Metabolism, Pfizer, Inc., New York NY, USA
| | - Cedo Bagi
- Global Science and Technology, Comparative Medicine, Pfizer, Inc., La Jolla, CA, USA
| | | | - Anand Giddabasappa
- Global Science and Technology, Comparative Medicine, Pfizer, Inc., La Jolla, CA, USA
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46
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Ghosh SC, Hernandez Vargas S, Rodriguez M, Kossatz S, Voss J, Carmon KS, Reiner T, Schonbrunn A, Azhdarinia A. Synthesis of a Fluorescently Labeled 68Ga-DOTA-TOC Analog for Somatostatin Receptor Targeting. ACS Med Chem Lett 2017; 8:720-725. [PMID: 28740605 DOI: 10.1021/acsmedchemlett.7b00125] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2017] [Accepted: 06/05/2017] [Indexed: 12/20/2022] Open
Abstract
Fluorescently labeled imaging agents can identify surgical margins in real-time to help achieve complete resections and minimize the likelihood of local recurrence. However, photon attenuation limits fluorescence-based imaging to superficial lesions or lesions that are a few millimeters beneath the tissue surface. Contrast agents that are dual-labeled with a radionuclide and fluorescent dye can overcome this limitation and combine quantitative, whole-body nuclear imaging with intraoperative fluorescence imaging. Using a multimodality chelation (MMC) scaffold, IRDye 800CW was conjugated to the clinically used somatostatin analog, 68Ga-DOTA-TOC, to produce the dual-labeled analog, 68Ga-MMC(IRDye 800CW)-TOC, with high yield and specific activity. In vitro pharmacological assays demonstrated retention of receptor-targeting properties for the dual-labeled compound with robust internalization that was somatostatin receptor (SSTR) 2-mediated. Biodistribution studies in mice identified the kidneys as the primary excretion route for 68Ga-MMC(IRDye 800CW)-TOC, along with clearance via the reticuloendothelial system. Higher uptake was observed in most tissues compared to 68Ga-DOTA-TOC but decreased as a function of time. The combination of excellent specificity for SSTR2-expressing cells and suitable biodistribution indicate potential application of 68Ga-MMC(IRDye 800CW)-TOC for intraoperative detection of SSTR2-expressing tumors.
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Affiliation(s)
- Sukhen C. Ghosh
- The
Brown Foundation Institute of Molecular Medicine, McGovern Medical
School, The University of Texas Health Science Center at Houston, Houston, Texas 77030, United States
| | - Servando Hernandez Vargas
- The
Brown Foundation Institute of Molecular Medicine, McGovern Medical
School, The University of Texas Health Science Center at Houston, Houston, Texas 77030, United States
| | - Melissa Rodriguez
- Department
of Integrative Biology and Pharmacology, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, Texas 77030, United States
| | - Susanne Kossatz
- Department
of Radiology, Memorial Sloan Kettering Cancer Center, New York, New York 10065, United States
| | - Julie Voss
- The
Brown Foundation Institute of Molecular Medicine, McGovern Medical
School, The University of Texas Health Science Center at Houston, Houston, Texas 77030, United States
| | - Kendra S. Carmon
- The
Brown Foundation Institute of Molecular Medicine, McGovern Medical
School, The University of Texas Health Science Center at Houston, Houston, Texas 77030, United States
| | - Thomas Reiner
- Department
of Radiology, Memorial Sloan Kettering Cancer Center, New York, New York 10065, United States
- Department
of Radiology, Weill Cornell Medical College, New York, New York 10065, United States
| | - Agnes Schonbrunn
- Department
of Integrative Biology and Pharmacology, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, Texas 77030, United States
| | - Ali Azhdarinia
- The
Brown Foundation Institute of Molecular Medicine, McGovern Medical
School, The University of Texas Health Science Center at Houston, Houston, Texas 77030, United States
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47
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Radioiodination of BODIPY and its application to a nuclear and optical dual functional labeling agent for proteins and peptides. Sci Rep 2017; 7:3337. [PMID: 28611426 PMCID: PMC5469783 DOI: 10.1038/s41598-017-03419-z] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2016] [Accepted: 04/28/2017] [Indexed: 11/20/2022] Open
Abstract
In molecular imaging research, the development of multimodal imaging probes has recently attracted much attention. In the present study, we prepared radioiodinated BODIPY and applied it as a nuclear and optical dual functional labeling agent for proteins and peptides. We designed and synthesized [125I]BODIPY with a N-hydroxysuccinimide (NHS) ester, and evaluated its utility as a nuclear and fluorescent dual labeling agent for proteins and peptides. In the radioiodination reaction of BODIPY-NHS with [125I]NaI, [125I]BODIPY-NHS was obtained at a 48% radiochemical yield. When we carried out the conjugation reaction of [125I]BODIPY-NHS with bovine serum albumin (BSA) and RGD (Arg-Gly-Asp) peptide as a model protein and peptide, respectively, [125I]BODIPY-BSA and [125I]BODIPY-RGD peptide were successfully prepared at 98 and 82% radiochemical yields, respectively. Furthermore, we prepared [123I]BODIPY-trastuzumab by this conjugation reaction and successfully applied it to single photon emission computed tomography (SPECT) imaging studies using tumor-bearing mice, suggesting that radioiodinated BODIPY-NHS serves as a dual functional labeling agent for proteins and peptides. Since iodine has various radioisotopes that can be used for SPECT and positron emission tomography (PET) imaging, biological research, and radiotherapy, the radioiodinated BODIPY may be extensively applicable from basic to clinical research.
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48
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Luo H, England CG, Goel S, Graves SA, Ai F, Liu B, Theuer CP, Wong HC, Nickles RJ, Cai W. ImmunoPET and Near-Infrared Fluorescence Imaging of Pancreatic Cancer with a Dual-Labeled Bispecific Antibody Fragment. Mol Pharm 2017; 14:1646-1655. [PMID: 28292180 DOI: 10.1021/acs.molpharmaceut.6b01123] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Dual-targeted imaging agents have shown improved targeting efficiencies in comparison to single-targeted entities. The purpose of this study was to quantitatively assess the tumor accumulation of a dual-labeled heterobifunctional imaging agent, targeting two overexpressed biomarkers in pancreatic cancer, using positron emission tomography (PET) and near-infrared fluorescence (NIRF) imaging modalities. A bispecific immunoconjugate (heterodimer) of CD105 and tissue factor (TF) Fab' antibody fragments was developed using click chemistry. The heterodimer was dual-labeled with a radionuclide (64Cu) and fluorescent dye. PET/NIRF imaging and biodistribution studies were performed in four-to-five week old nude athymic mice bearing BxPC-3 (CD105/TF+/+) or PANC-1 (CD105/TF-/-) tumor xenografts. A blocking study was conducted to investigate the specificity of the tracer. Ex vivo tissue staining was performed to compare TF/CD105 expression in tissues with PET tracer uptake to validate in vivo results. PET imaging of 64Cu-NOTA-heterodimer-ZW800 in BxPC-3 tumor xenografts revealed enhanced tumor uptake (21.0 ± 3.4%ID/g; n = 4) compared to the homodimer of TRC-105 (9.6 ± 2.0%ID/g; n = 4; p < 0.01) and ALT-836 (7.6 ± 3.7%ID/g; n = 4; p < 0.01) at 24 h postinjection. Blocking studies revealed that tracer uptake in BxPC-3 tumors could be decreased by 4-fold with TF blocking and 2-fold with CD105 blocking. In the negative model (PANC-1), heterodimer uptake was significantly lower than that found in the BxPC-3 model (3.5 ± 1.1%ID/g; n = 4; p < 0.01). The specificity was confirmed by the successful blocking of CD105 or TF, which demonstrated that the dual targeting with 64Cu-NOTA-heterodimer-ZW800 provided an improvement in overall tumor accumulation. Also, fluorescence imaging validated the PET imaging, allowing for clear delineation of the xenograft tumors. Dual-labeled heterodimeric imaging agents, like 64Cu-NOTA-heterodimer-ZW800, may increase the overall tumor accumulation in comparison to single-targeted homodimers, leading to improved imaging of cancer and other related diseases.
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Affiliation(s)
- Haiming Luo
- Department of Radiology, University of Wisconsin-Madison , Madison, Wisconsin 53705, United States
| | - Christopher G England
- Department of Medical Physics, University of Wisconsin-Madison , Madison, Wisconsin 53705, United States
| | - Shreya Goel
- Materials Science Program, University of Wisconsin-Madison , Madison, Wisconsin 53706, United States
| | - Stephen A Graves
- Department of Medical Physics, University of Wisconsin-Madison , Madison, Wisconsin 53705, United States
| | - Fanrong Ai
- Department of Radiology, University of Wisconsin-Madison , Madison, Wisconsin 53705, United States
| | - Bai Liu
- Altor BioScience Corporation , Miramar, Florida 33025, United States
| | - Charles P Theuer
- TRACON Pharmaceuticals Incorporation , San Diego, California 92122, United States
| | - Hing C Wong
- Altor BioScience Corporation , Miramar, Florida 33025, United States
| | - Robert J Nickles
- Department of Medical Physics, University of Wisconsin-Madison , Madison, Wisconsin 53705, United States
| | - Weibo Cai
- Department of Radiology, University of Wisconsin-Madison , Madison, Wisconsin 53705, United States.,Department of Medical Physics, University of Wisconsin-Madison , Madison, Wisconsin 53705, United States.,Materials Science Program, University of Wisconsin-Madison , Madison, Wisconsin 53706, United States.,University of Wisconsin Carbone Cancer Center , Madison, Wisconsin 53705, United States
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49
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Hernandez R, Heskamp S, Rijpkema M, Bos DL, Goldenberg DM, McBride WJ, Morgenstern A, Bruchertseifer F, Cai W, Boerman OC. Preventing Radiobleaching of Cyanine Fluorophores Enhances Stability of Nuclear/NIRF Multimodality Imaging Agents. Am J Cancer Res 2017; 7:1-8. [PMID: 28042311 PMCID: PMC5196880 DOI: 10.7150/thno.15124] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2016] [Accepted: 08/04/2016] [Indexed: 12/30/2022] Open
Abstract
Despite the large interest in nuclear/optical multimodality imaging, the effect of radiation on the fluorescence of fluorophores remains largely unexplored. Herein, we report on the radiobleaching of cyanine fluorophores and describe conditions to provide robust radioprotection under practical (pre)clinical settings. We determined the radiosensitivity of several cyanine fluorescent compounds, including IRDye 800CW (800CW) and a dual modality imaging tetrapeptide containing DOTA as chelator and Dylight 800 as fluorophore, exposed to increasing activities of 111In, 68Ga, or 213Bi (γ, EC/β, and α emitter, respectively). An activity and type of radiation-dependent radiation-induced loss of fluorescence, radiobleaching, of 800CW was observed upon incubation with escalating activities of 111In, 68Ga, or 213Bi. 68Ga showed the largest radiolytic effect, followed by 111In and 213Bi. The addition of oxygen radical scavengers including ethanol, gentisic acid, and ascorbic acid (AA), provided a concentration dependent radioprotective effect. These results supported the hypothesis of a free radical-mediated radiobleaching mechanism. AA provided the most robust radioprotection over a wide range of concentrations and preserved fluorescence at much higher radioactivity levels. Overall, both near-infrared fluorescent compounds displayed similar sensitivity, except for 213Bi-irradiated solutions, where the dual modality construct exhibited enhanced radiolysis, presumably due to direct radiation damage from α particles. Concurrently, AA was not able to preserve fluorescence of the dual-modality molecule labeled with 213Bi. Our findings have important consequences for several research areas including ROS sensing, radiation-mediated drug release (uncaging), fluorescent dosimetry, and in the preparation of dual-modality radiopharmaceuticals.
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50
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Ong MJH, Srinivasan R, Romieu A, Richard JA. Divergent Synthesis of Dihydroxanthene-Hemicyanine Fused Near-Infrared Fluorophores through the Late-Stage Amination of a Bifunctional Precursor. Org Lett 2016; 18:5122-5125. [DOI: 10.1021/acs.orglett.6b02564] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Michelle Jui Hsien Ong
- Organic
Chemistry, Institute of Chemical and Engineering Sciences (ICES),
Agency for Science, Technology and Research (A*STAR), 8 Biomedical
Grove, Neuros, #07-01, Singapore, Singapore 138665
| | - Rajavel Srinivasan
- Organic
Chemistry, Institute of Chemical and Engineering Sciences (ICES),
Agency for Science, Technology and Research (A*STAR), 8 Biomedical
Grove, Neuros, #07-01, Singapore, Singapore 138665
| | - Anthony Romieu
- ICMUB, UMR 6302,
CNRS, Univ. Bourgogne Franche-Comté, 9, Avenue Alain Savary, 21078 Dijon cedex, France
- Institut Universitaire de France, 103 Boulevard Saint-Michel, 75005 Paris, France
| | - Jean-Alexandre Richard
- Organic
Chemistry, Institute of Chemical and Engineering Sciences (ICES),
Agency for Science, Technology and Research (A*STAR), 8 Biomedical
Grove, Neuros, #07-01, Singapore, Singapore 138665
| |
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