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Jirát-Ziółkowska N, Vít M, Groborz O, Kolouchová K, Červený D, Sedláček O, Jirák D. Long-term in vivo dissolution of thermo- and pH-responsive, 19F magnetic resonance-traceable and injectable polymer implants. NANOSCALE ADVANCES 2024; 6:3041-3051. [PMID: 38868824 PMCID: PMC11166117 DOI: 10.1039/d4na00212a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/14/2024] [Accepted: 03/28/2024] [Indexed: 06/14/2024]
Abstract
19F magnetic resonance (19F MR) tracers stand out for their wide range of applications in experimental and clinical medicine, as they can be precisely located in living tissues with negligible fluorine background. This contribution demonstrates the long-term dissolution of multiresponsive fluorinated implants designed for prolonged release. Implants were detected for 14 (intramuscular injection) and 20 (subcutaneous injection) months by 19F MR at 4.7 T, showing favorable MR relaxation times, biochemical stability, biological compatibility and slow, long-term dissolution. Thus, polymeric implants may become a platform for long-term local theranostics.
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Affiliation(s)
- Natalia Jirát-Ziółkowska
- Radiodiagnostic and Interventional Radiology Department, Institute for Clinical and Experimental Medicine Videnska 1958/9 140 21 Prague Czech Republic +420-736467349
- Institute of Biophysics and Informatics, First Faculty of Medicine, Charles University Katerinska 1660/32 Prague 121 08 Czech Republic
| | - Martin Vít
- Radiodiagnostic and Interventional Radiology Department, Institute for Clinical and Experimental Medicine Videnska 1958/9 140 21 Prague Czech Republic +420-736467349
| | - Ondřej Groborz
- Institute of Biophysics and Informatics, First Faculty of Medicine, Charles University Katerinska 1660/32 Prague 121 08 Czech Republic
- Institute of Macromolecular Chemistry, Czech Academy of Sciences Heyrovsky square 2 162 06 Prague Czech Republic
| | - Kristýna Kolouchová
- Institute of Macromolecular Chemistry, Czech Academy of Sciences Heyrovsky square 2 162 06 Prague Czech Republic
| | - David Červený
- Radiodiagnostic and Interventional Radiology Department, Institute for Clinical and Experimental Medicine Videnska 1958/9 140 21 Prague Czech Republic +420-736467349
- Faculty of Health Studies, Technical University of Liberec Studentska 1402/2 Liberec 461 17 Czech Republic
| | - Ondřej Sedláček
- Department of Physical and Macromolecular Chemistry, Faculty of Science, Charles University Hlavova 8 Prague 128 00 Czech Republic
| | - Daniel Jirák
- Radiodiagnostic and Interventional Radiology Department, Institute for Clinical and Experimental Medicine Videnska 1958/9 140 21 Prague Czech Republic +420-736467349
- Faculty of Health Studies, Technical University of Liberec Studentska 1402/2 Liberec 461 17 Czech Republic
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2
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Ghosh S, Lee SJ, Hsu JC, Chakraborty S, Chakravarty R, Cai W. Cancer Brachytherapy at the Nanoscale: An Emerging Paradigm. CHEMICAL & BIOMEDICAL IMAGING 2024; 2:4-26. [PMID: 38274040 PMCID: PMC10806911 DOI: 10.1021/cbmi.3c00092] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/01/2023] [Revised: 10/09/2023] [Accepted: 11/01/2023] [Indexed: 01/27/2024]
Abstract
Brachytherapy is an established treatment modality that has been globally utilized for the therapy of malignant solid tumors. However, classic therapeutic sealed sources used in brachytherapy must be surgically implanted directly into the tumor site and removed after the requisite period of treatment. In order to avoid the trauma involved in the surgical procedures and prevent undesirable radioactive distribution at the cancerous site, well-dispersed radiolabeled nanomaterials are now being explored for brachytherapy applications. This emerging field has been coined "nanoscale brachytherapy". Despite present-day advancements, an ongoing challenge is obtaining an advanced, functional nanomaterial that concurrently incorporates features of high radiolabeling yield, short labeling time, good radiolabeling stability, and long tumor retention time without leakage of radioactivity to the nontargeted organs. Further, attachment of suitable targeting ligands to the nanoplatforms would widen the nanoscale brachytherapy approach to tumors expressing various phenotypes. Molecular imaging using radiolabeled nanoplatforms enables noninvasive visualization of cellular functions and biological processes in vivo. In vivo imaging also aids in visualizing the localization and retention of the radiolabeled nanoplatforms at the tumor site for the requisite time period to render safe and effective therapy. Herein, we review the advancements over the last several years in the synthesis and use of functionalized radiolabeled nanoplatforms as a noninvasive substitute to standard brachytherapy sources. The limitations of present-day brachytherapy sealed sources are analyzed, while highlighting the advantages of using radiolabeled nanoparticles (NPs) for this purpose. The recent progress in the development of different radiolabeling methods, delivery techniques and nanoparticle internalization mechanisms are discussed. The preclinical studies performed to date are summarized with an emphasis on the current challenges toward the future translation of nanoscale brachytherapy in routine clinical practices.
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Affiliation(s)
- Sanchita Ghosh
- Radiopharmaceuticals
Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400085, India
- Homi
Bhabha National Institute, Anushaktinagar, Mumbai 400094, India
| | - Sophia J. Lee
- Departments
of Radiology and Medical Physics, University
of Wisconsin-Madison, Madison, Wisconsin 53705, United States
| | - Jessica C. Hsu
- Departments
of Radiology and Medical Physics, University
of Wisconsin-Madison, Madison, Wisconsin 53705, United States
| | - Sudipta Chakraborty
- Radiopharmaceuticals
Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400085, India
- Homi
Bhabha National Institute, Anushaktinagar, Mumbai 400094, India
| | - Rubel Chakravarty
- Radiopharmaceuticals
Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400085, India
- Homi
Bhabha National Institute, Anushaktinagar, Mumbai 400094, India
| | - Weibo Cai
- Departments
of Radiology and Medical Physics, University
of Wisconsin-Madison, Madison, Wisconsin 53705, United States
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García-Vázquez R, Battisti UM, Shalgunov V, Schäfer G, Barz M, Herth MM. [ 11 C]Carboxylated Tetrazines for Facile Labeling of Trans-Cyclooctene-Functionalized PeptoBrushes. Macromol Rapid Commun 2021; 43:e2100655. [PMID: 34888977 DOI: 10.1002/marc.202100655] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2021] [Revised: 11/19/2021] [Indexed: 12/30/2022]
Abstract
Functionalization of macromolecules (antibodies, polymers, nanoparticles) with click-reactive groups greatly enhances the versatility of their potential applications. Click chemistry based on tetrazine - trans-cyclooctene (TCO) ligation is especially promising and is already widely applied for pretargeted imaging and therapy. Indirect radiolabeling of TCO-functionalized macromolecules with substoichiometric amounts of radioactive tetrazines is a convenient way to monitor the fate of those macromolecules by means of positron emission tomography (PET) imaging after their administration into the test subject. In this work, the preparation is reported of TCO-containing graft copolymers, namely PeptoBrushes (polyglutamic acid-graft-polysarcosine), novel [11 C]carboxylated tetrazines, and their combined use in radiolabeling the polymer by inverse electron demand Diels Alder reaction, to investigate it is potential for an application in pretarget imaging or injectable brachytherapy. The procedure for [11 C]tetrazine production is easy and scalable, while indirect TCO-PeptoBrushes labeling with these [11 C]tetrazines is mild, fast, and quantitative. This strategy allows facile 11 C-labeling of diverse TCO-functionalized macromolecules, so that their localization and distribution shortly after injection can be assessed by PET.
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Affiliation(s)
- Rocío García-Vázquez
- Department of Drug Design and Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen, Jagtvej 160, Copenhagen, 2100, Denmark
| | - Umberto Maria Battisti
- Department of Drug Design and Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen, Jagtvej 160, Copenhagen, 2100, Denmark
| | - Vladimir Shalgunov
- Department of Drug Design and Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen, Jagtvej 160, Copenhagen, 2100, Denmark.,Department of Clinical Physiology, Nuclear Medicine & PET, Rigshospitalet, Blegdamsvej 9, Copenhagen, 2100, Denmark
| | - Gabriela Schäfer
- Leiden Academic Centre for Drug Research (LACDR) Leiden University Einsteinweg 55, Leiden, 2333CC, The Netherlands
| | - Matthias Barz
- Leiden Academic Centre for Drug Research (LACDR) Leiden University Einsteinweg 55, Leiden, 2333CC, The Netherlands
| | - Matthias Manfred Herth
- Department of Drug Design and Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen, Jagtvej 160, Copenhagen, 2100, Denmark.,Department of Clinical Physiology, Nuclear Medicine & PET, Rigshospitalet, Blegdamsvej 9, Copenhagen, 2100, Denmark
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4
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Shalgunov V, Engudar G, Bohrmann L, Wharton L, Maskell K, Johann K, Barz M, Schaffer P, Herth MM, Radchenko V. Radiolabeling of a polypeptide polymer for intratumoral delivery of alpha-particle emitter, 225Ac, and beta-particle emitter, 177Lu. Nucl Med Biol 2021; 104-105:11-21. [PMID: 34839209 DOI: 10.1016/j.nucmedbio.2021.11.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2021] [Revised: 10/22/2021] [Accepted: 11/08/2021] [Indexed: 12/16/2022]
Abstract
INTRODUCTION Radiotherapy of cancer requires both alpha- and beta-particle emitting radionuclides, as these radionuclide types are efficient at destroying different types of tumors. Both classes of radionuclides require a vehicle, such as an antibody or a polymer, to be delivered and retained within the tumor. Polyglutamic acid (pGlu) is a polymer that has proven itself effective as a basis of drug-polymer conjugates in the clinic, while its derivatives have been used for pretargeted tumor imaging in a research setup. trans-Cyclooctene (TCO) modified pGlu is suitable for pretargeted imaging or therapy, as well as for intratumoral radionuclide therapy. In all cases, it becomes indirectly radiolabeled via the bioorthogonal click reaction with the tetrazine (Tz) molecule carrying the radionuclide. In this study, we report the radiolabeling of TCO-modified pGlu with either lutetium-177 (177Lu), a beta-particle emitter, or actinium-225 (225Ac), an alpha-particle emitter, using the click reaction between TCO and Tz. METHODS A panel of Tz derivatives containing a metal ion binding chelator (DOTA or macropa) connected to the Tz moiety directly or through a polyethylene glycol (PEG) linker was synthesized and tested for their ability to chelate 177Lu and 225Ac, and click to pGlu-TCO. Radiolabeled 177Lu-pGlu and 225Ac-pGlu were isolated by size exclusion chromatography. The retention of 177Lu or 225Ac by the obtained conjugates was investigated in vitro in human serum. RESULTS All DOTA-modified Tzs efficiently chelated 177Lu resulting in average radiochemical conversions (RCC) of >75%. Isolated radiochemical yields (RCY) for 177Lu-pGlu prepared from 177Lu-Tzs ranged from 31% to 55%. TLC analyses detected <5% unchelated 177Lu for all 177Lu-pGlu preparations over six days in human serum. For 225Ac chelation, optimized RCCs ranged from 61 ± 34% to quantitative for DOTA-Tzs and were quantitative for the macropa-modified Tz (>98%). Isolated radiochemical yields (RCY) for 225Ac-pGlu prepared from 225Ac-Tzs ranged from 28% to 51%. For 3 out of 5 225Ac-pGlu conjugates prepared from DOTA-Tzs, the amount of unchelated 225Ac stayed below 10% over six days in human serum, while 225Ac-pGlu prepared from macropa-Tz showed a steady release of up to 37% 225Ac. CONCLUSION We labeled TCO-modified pGlu polymers with alpha- and beta-emitting radionuclides in acceptable RCYs. All 177Lu-pGlu preparations and some 225Ac-pGlu preparations showed excellent stability in human plasma. Our work shows the potential of pGlu as a vehicle for alpha- and beta-radiotherapy of tumors and demonstrated the usefulness of Tz ligation for indirect radiolabeling.
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Affiliation(s)
- Vladimir Shalgunov
- Department for Drug Design and Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen, Universitetsparken 2, 2100 Copenhagen, Denmark
| | - Gokce Engudar
- Life Sciences Division, TRIUMF, 4004 Wesbrook Mall, Vancouver, BC V6T 2A3, Canada
| | - Lennart Bohrmann
- Department for Drug Design and Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen, Universitetsparken 2, 2100 Copenhagen, Denmark; Faculty of Pharmaceutical Sciences, University of British Columbia, 2405 Wesbrook Mall, Vancouver, BC V6T 1Z3, Canada
| | - Luke Wharton
- Life Sciences Division, TRIUMF, 4004 Wesbrook Mall, Vancouver, BC V6T 2A3, Canada; Medicinal Inorganic Chemistry Group, Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, BC V6T 1Z, Canada
| | - Keiran Maskell
- Life Sciences Division, TRIUMF, 4004 Wesbrook Mall, Vancouver, BC V6T 2A3, Canada; Department of Chemistry, Simon Fraser University, 8888 University Drive, Burnaby, BC V5A 0A7, Canada
| | - Kerstin Johann
- Department of Chemistry, Johannes Gutenberg University, Duesbergweg 10-14, 55128 Mainz, Germany
| | - Matthias Barz
- Department of Chemistry, Johannes Gutenberg University, Duesbergweg 10-14, 55128 Mainz, Germany; Division of Biotherapeutics, Leiden Academic Center for Drug Research (LACDR), Einsteinweg 55, 2333CC Leiden, the Netherlands
| | - Paul Schaffer
- Life Sciences Division, TRIUMF, 4004 Wesbrook Mall, Vancouver, BC V6T 2A3, Canada; Department of Chemistry, Simon Fraser University, 8888 University Drive, Burnaby, BC V5A 0A7, Canada; Department of Radiology, University of British Columbia, 2775 Lauret St, Vancouver, BC V5Z 1M9, Canada
| | - Matthias M Herth
- Department for Drug Design and Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen, Universitetsparken 2, 2100 Copenhagen, Denmark; Department of Clinical Physiology, Nuclear Medicine & PET, Rigshospitalet, Blegdamsvej 9, 2100 Copenhagen, Denmark.
| | - Valery Radchenko
- Life Sciences Division, TRIUMF, 4004 Wesbrook Mall, Vancouver, BC V6T 2A3, Canada; Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, BC V6T 1Z, Canada.
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Kolouchova K, Jirak D, Groborz O, Sedlacek O, Ziolkowska N, Vit M, Sticova E, Galisova A, Svec P, Trousil J, Hajek M, Hruby M. Implant-forming polymeric 19F MRI-tracer with tunable dissolution. J Control Release 2020; 327:50-60. [PMID: 32730953 DOI: 10.1016/j.jconrel.2020.07.026] [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: 01/21/2020] [Revised: 07/13/2020] [Accepted: 07/15/2020] [Indexed: 12/29/2022]
Abstract
Magnetic resonance imaging (MRI) using 19F-based tracers has emerged as a promising multi-purpose noninvasive diagnostic tool and its application requires the use of various 19F-based tracers for the intended diagnostic purpose. In this study, we report a series of double-stimuli-responsive polymers for use as injectable implants, which were designed to form implants under physiological conditions, and to subsequently dissolve with different dissolution rates (t1/2 ranges from 30 to more than 250 days). Our polymers contain a high concentration of fluorine atoms, providing remarkable signal detectability, and both a hydrophilic monomer and a pH-responsive monomer that alter the biodistribution properties of the implant. The implant location and dissolution were observed using 19F MRI, which allows the anatomic extent of the implant to be monitored. The dissolution kinetics and biocompatibility of these materials were thoroughly analyzed. No sign of toxicity in vitro or in vivo or pathology in vivo was observed, even in chronic administration. The clinical applicability of our polymers was further confirmed via imaging of a rat model by employing an instrument currently used in human medicine.
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Affiliation(s)
- Kristyna Kolouchova
- Institute of Macromolecular Chemistry CAS, Heyrovsky Square 2, 162 06 Prague 6, Czech Republic; Department of Physical and Macromolecular Chemistry, Faculty of Science, Charles University, Hlavova 8, Prague 2 128 00, Czech Republic
| | - Daniel Jirak
- Department of Diagnostic and Interventional Radiology, Institute for Clinical and Experimental Medicine, Videnska 1958/9, 140 21 Prague 4, Czech Republic; Department of Science and Research, Faculty of Health Studies, Technical University of Liberec, Studentska 1402/2, 461 17 Liberec, Czech Republic.
| | - Ondrej Groborz
- Institute of Macromolecular Chemistry CAS, Heyrovsky Square 2, 162 06 Prague 6, Czech Republic; Department of Organic Chemistry, Charles University, Faculty of Science, Hlavova 8, 128 43 Prague 2, Czech Republic; Institute of Biophysics and Informatics, Charles University, First Faculty of Medicine, Salmovská 1, 120 00 Prague 2, Czech Republic; Institute of Organic Chemistry and Biochemistry, Czech Academy of Sciences, Flemingovo square 542/2, 162 06 Prague 6, Czech Republic
| | - Ondrej Sedlacek
- Department of Organic and Macromolecular Chemistry, Ghent University, Krijgslaan 281-S4, 9000 Ghent, Belgium
| | - Natalia Ziolkowska
- Department of Diagnostic and Interventional Radiology, Institute for Clinical and Experimental Medicine, Videnska 1958/9, 140 21 Prague 4, Czech Republic; Institute of Biophysics and Informatics, Charles University, First Faculty of Medicine, Salmovská 1, 120 00 Prague 2, Czech Republic
| | - Martin Vit
- Department of Diagnostic and Interventional Radiology, Institute for Clinical and Experimental Medicine, Videnska 1958/9, 140 21 Prague 4, Czech Republic; Technical University of Liberec, Faculty of Mechatronics Informatics and Interdisciplinary Studies, Studentska 1402/2, 461 17 Liberec, Czech Republic
| | - Eva Sticova
- Department of Diagnostic and Interventional Radiology, Institute for Clinical and Experimental Medicine, Videnska 1958/9, 140 21 Prague 4, Czech Republic
| | - Andrea Galisova
- Department of Diagnostic and Interventional Radiology, Institute for Clinical and Experimental Medicine, Videnska 1958/9, 140 21 Prague 4, Czech Republic
| | - Pavel Svec
- Institute of Macromolecular Chemistry CAS, Heyrovsky Square 2, 162 06 Prague 6, Czech Republic; Department of Physical and Macromolecular Chemistry, Faculty of Science, Charles University, Hlavova 8, Prague 2 128 00, Czech Republic
| | - Jiri Trousil
- Institute of Macromolecular Chemistry CAS, Heyrovsky Square 2, 162 06 Prague 6, Czech Republic
| | - Milan Hajek
- Department of Diagnostic and Interventional Radiology, Institute for Clinical and Experimental Medicine, Videnska 1958/9, 140 21 Prague 4, Czech Republic
| | - Martin Hruby
- Institute of Macromolecular Chemistry CAS, Heyrovsky Square 2, 162 06 Prague 6, Czech Republic.
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6
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Zhu JL, Yu SWK, Chow PKH, Tong YW, Li J. Controlling injectability and in vivo stability of thermogelling copolymers for delivery of yttrium-90 through intra-tumoral injection for potential brachytherapy. Biomaterials 2018; 180:163-172. [PMID: 30053657 DOI: 10.1016/j.biomaterials.2018.07.023] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2018] [Revised: 06/14/2018] [Accepted: 07/11/2018] [Indexed: 02/07/2023]
Abstract
Intra-tumoral injection of radiopharmaceuticals such as yttrium-90 (90Y) or phosphorus-32 (32P) is an important route for brachytherapy in unresectable solid tumors such as locally advanced hepatocellular carcinoma. However, the injected radiopharmaceuticals can potentially leak out from the tumor site due to high intra-tumoral pressure. In this study, we demonstrated the use of thermogelling copolymers that can be injected into tumor and subsequently solidify as hydrogels within the tumor that can potentially overcome the above problem. To this end, a series of thermogelling polyurethane copolymers with varying compositions were designed and synthesized from Pluronic F127, poly(3-hydroxylbutyrate), and poly(propylene glycol), which were characterized in terms of their molecular structures, compositions, phase diagrams, rheological properties, and injectability and body temperature stability in vitro and in vivo. The analyses of our data elucidated the injectability of the copolymer solutions at low temperatures, and the stability of the hydrogels at the body temperature. This provided the basis on which we could identify one copolymer with balanced composition as the most suitable candidate for intra-tumoral injection and for prevention of the leakage. Finally, the injectability and in vivo stability of the copolymer solution and hydrogel loaded with 90Y were further demonstrated in a mouse tumor model, and the in vivo biodistribution of 90Y showed that the radionuclide could be retained at the tumor site, indicating that the 90Y-loaded copolymer has a great potential for tumor radio-brachytherapy.
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Affiliation(s)
- Jing-Ling Zhu
- Department of Biomedical Engineering, Faculty of Engineering, National University of Singapore, 7 Engineering Drive 1, Singapore, 117574, Singapore
| | | | - Pierce Kah-Hoe Chow
- Division of Surgical Oncology, National Cancer Centre, 11 Hospital Drive, Singapore, 169610, Singapore; Duke-NUS Medical School Singapore, 11 Hospital Drive, Singapore, 169857, Singapore.
| | - Yen Wah Tong
- Department of Chemical and Biomolecular Engineering, Faculty of Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore, 117576, Singapore
| | - Jun Li
- Department of Biomedical Engineering, Faculty of Engineering, National University of Singapore, 7 Engineering Drive 1, Singapore, 117574, Singapore.
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7
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Loukotová L, Kučka J, Rabyk M, Höcherl A, Venclíková K, Janoušková O, Páral P, Kolářová V, Heizer T, Šefc L, Štěpánek P, Hrubý M. Thermoresponsive β-glucan-based polymers for bimodal immunoradiotherapy – Are they able to promote the immune system? J Control Release 2017; 268:78-91. [DOI: 10.1016/j.jconrel.2017.10.010] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2017] [Revised: 10/09/2017] [Accepted: 10/10/2017] [Indexed: 01/05/2023]
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8
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Sano K, Kanada Y, Kanazaki K, Ding N, Ono M, Saji H. Brachytherapy with Intratumoral Injections of Radiometal-Labeled Polymers That Thermoresponsively Self-Aggregate in Tumor Tissues. J Nucl Med 2017; 58:1380-1385. [DOI: 10.2967/jnumed.117.189993] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2017] [Accepted: 04/03/2017] [Indexed: 11/16/2022] Open
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Pant K, Sedláček O, Nadar RA, Hrubý M, Stephan H. Radiolabelled Polymeric Materials for Imaging and Treatment of Cancer: Quo Vadis? Adv Healthc Mater 2017; 6. [PMID: 28218487 DOI: 10.1002/adhm.201601115] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2016] [Revised: 11/24/2016] [Indexed: 12/15/2022]
Abstract
Owing to their tunable blood circulation time and suitable plasma stability, polymer-based nanomaterials hold a great potential for designing and utilising multifunctional nanocarriers for efficient imaging and effective treatment of cancer. When tagged with appropriate radionuclides, they may allow for specific detection (diagnosis) as well as the destruction of tumours (therapy) or even customization of materials, aiming to both diagnosis and therapy (theranostic approach). This review provides an overview of recent developments of radiolabelled polymeric nanomaterials (natural and synthetic polymers) for molecular imaging of cancer, specifically, applying nuclear techniques such as positron emission tomography (PET) and single-photon emission computed tomography (SPECT). Different approaches to radiolabel polymers are evaluated from the methodical radiochemical point of view. This includes new bifunctional chelating agents (BFCAs) for radiometals as well as novel labelling methods. Special emphasis is given to eligible strategies employed to evade the mononuclear phagocytic system (MPS) in view of efficient targeting. The discussion encompasses promising strategies currently employed as well as emerging possibilities in radionuclide-based cancer therapy. Key issues involved in the clinical translation of radiolabelled polymers and future scopes of this intriguing research field are also discussed.
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Affiliation(s)
- Kritee Pant
- Helmholtz-Zentrum Dresden-Rossendorf; Institute of Radiopharmaceutical Cancer Research; Bautzner Landstraße 400 01328 Dresden Germany
| | - Ondřej Sedláček
- Institute of Macromolecular Chemistry; The Academy of Sciences of the Czech Republic; Heyrovského námeˇstí 2 16206 Prague 6 Czech Republic
| | - Robin A. Nadar
- Helmholtz-Zentrum Dresden-Rossendorf; Institute of Radiopharmaceutical Cancer Research; Bautzner Landstraße 400 01328 Dresden Germany
| | - Martin Hrubý
- Institute of Macromolecular Chemistry; The Academy of Sciences of the Czech Republic; Heyrovského námeˇstí 2 16206 Prague 6 Czech Republic
| | - Holger Stephan
- Helmholtz-Zentrum Dresden-Rossendorf; Institute of Radiopharmaceutical Cancer Research; Bautzner Landstraße 400 01328 Dresden Germany
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10
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Sedlacek O, Kucka J, Monnery BD, Slouf M, Vetrik M, Hoogenboom R, Hruby M. The effect of ionizing radiation on biocompatible polymers: From sterilization to radiolysis and hydrogel formation. Polym Degrad Stab 2017. [DOI: 10.1016/j.polymdegradstab.2017.01.005] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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11
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Double stimuli-responsive polymer systems: How to use crosstalk between pH- and thermosensitivity for drug depots. Eur Polym J 2016. [DOI: 10.1016/j.eurpolymj.2016.09.010] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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12
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Hrubý M, Kučka J, Pánek J, Štěpánek P. Seven years of radionuclide laboratory at IMC - important achievements. Physiol Res 2016; 65:S191-S201. [PMID: 27762585 DOI: 10.33549/physiolres.933421] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
For many important research topics in polymer science the use of radionuclides brings significant benefits concerning nanotechnology, polymer drug delivery systems, tissue engineering etc. This contribution describes important achievements of the radionuclide laboratory at Institute of Macromolecular Chemistry of the Academy of Sciences of the Czech Republic (IMC) in the area of polymers for biomedical applications. Particular emphasis will be given to water-soluble polymer carriers of radionuclides, thermoresponsive polymer radionuclide carriers, thermoresponsive polymers for local brachytherapy, polymer scaffolds modified with (radiolabeled) peptides and polymer copper chelators for the therapy of Wilson´s disease.
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Affiliation(s)
- M Hrubý
- Institute of Macromolecular Chemistry of the Czech Academy of Sciences, Prague, Czech Republic.
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13
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Sedláček O, Černoch P, Kučka J, Konefal R, Štěpánek P, Vetrík M, Lodge TP, Hrubý M. Thermoresponsive Polymers for Nuclear Medicine: Which Polymer Is the Best? LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2016; 32:6115-6122. [PMID: 27238593 DOI: 10.1021/acs.langmuir.6b01527] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Thermoresponsive polymers showing cloud point temperatures (CPT) in aqueous solutions are very promising for the construction of various systems in biomedical field. In many of these applications these polymers get in contact with ionizing radiation, e.g., if they are used as carriers for radiopharmaceuticals or during radiation sterilization. Despite this fact, radiosensitivity of these polymers is largely overlooked to date. In this work, we describe the effect of electron beam ionizing radiation on the physicochemical and phase separation properties of selected thermoresponsive polymers with CPT between room and body temperature. Stability of the polymers to radiation (doses 0-20 kGy) in aqueous solutions increased in the order poly(N-vinylcaprolactam) (PVCL, the least stable) ≪ poly[N-(2,2-difluoroethyl)acrylamide] (DFP) < poly(N-isopropylacrylamide) (PNIPAM) ≪ poly(2-isopropyl-2-oxazoline-co-2-n-butyl-2-oxazoline) (POX). Even low doses of β radiation (1 kGy), which are highly relevant to the storage of polymer radiotherapeutics and sterilization of biomedical systems, cause significant increase in molecular weight due to cross-linking (except for POX, where this effect is weak). In the case of PVCL irradiated with low doses, the increase in molecular weight induced an increase in the CPT of the polymer. For PNIPAM and DFP, there is strong chain hydrophilization leading to an increase in CPT. From this perspective, POX is the most suitable polymer for the construction of delivery systems that experience exposure to radiation, while PVCL is the least suitable and PNIPAM and DFP are suitable only for low radiation demands.
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Affiliation(s)
- Ondřej Sedláček
- Institute of Macromolecular Chemistry, v.v.i., Academy of Sciences of the Czech Republic , Heyrovsky Sq. 2, 162 06 Prague 6, Czech Republic
| | - Peter Černoch
- Institute of Macromolecular Chemistry, v.v.i., Academy of Sciences of the Czech Republic , Heyrovsky Sq. 2, 162 06 Prague 6, Czech Republic
| | - Jan Kučka
- Institute of Macromolecular Chemistry, v.v.i., Academy of Sciences of the Czech Republic , Heyrovsky Sq. 2, 162 06 Prague 6, Czech Republic
| | - Rafał Konefal
- Institute of Macromolecular Chemistry, v.v.i., Academy of Sciences of the Czech Republic , Heyrovsky Sq. 2, 162 06 Prague 6, Czech Republic
| | - Petr Štěpánek
- Institute of Macromolecular Chemistry, v.v.i., Academy of Sciences of the Czech Republic , Heyrovsky Sq. 2, 162 06 Prague 6, Czech Republic
| | - Miroslav Vetrík
- Institute of Macromolecular Chemistry, v.v.i., Academy of Sciences of the Czech Republic , Heyrovsky Sq. 2, 162 06 Prague 6, Czech Republic
| | - Timothy P Lodge
- Department of Chemistry, University of Minnesota , 207 Pleasant Street SE, Minneapolis, Minnesota 55455, United States
| | - Martin Hrubý
- Institute of Macromolecular Chemistry, v.v.i., Academy of Sciences of the Czech Republic , Heyrovsky Sq. 2, 162 06 Prague 6, Czech Republic
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14
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Injectable polypeptide micelles that form radiation crosslinked hydrogels in situ for intratumoral radiotherapy. J Control Release 2016; 228:58-66. [PMID: 26928529 DOI: 10.1016/j.jconrel.2016.02.040] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2015] [Revised: 01/22/2016] [Accepted: 02/24/2016] [Indexed: 01/03/2023]
Abstract
Intratumoral radiation therapy - 'brachytherapy' - is a highly effective treatment for solid tumors, particularly prostate cancer. Current titanium seed implants, however, are permanent and are limited in clinical application to indolent malignancies of low- to intermediate-risk. Attempts to develop polymeric alternatives, however, have been plagued by poor retention and off-target toxicity due to degradation. Herein, we report on a new approach whereby thermally sensitive micelles composed of an elastin-like polypeptide (ELP) are labeled with the radionuclide (131)I to form an in situ hydrogel that is stabilized by two independent mechanisms: first, body heat triggers the radioactive ELP micelles to rapidly phase transition into an insoluble, viscous coacervate in under 2 min; second, the high energy β-emissions of (131)I further stabilize the depot by introducing crosslinks within the ELP depot over 24h. These injectable brachytherapy hydrogels were used to treat two aggressive orthotopic tumor models in athymic nude mice: a human PC-3 M-luc-C6 prostate tumor and a human BxPc3-luc2 pancreatic tumor model. The ELP depots retained greater than 52% and 70% of their radioactivity through 60 days in the prostate and pancreatic tumors with no appreciable radioactive accumulation (≤ 0.1% ID) in off-target tissues after 72h. The (131)I-ELP depots achieved >95% tumor regression in the prostate tumors (n=8); with a median survival of more than 60 days compared to 12 days for control mice. For the pancreatic tumors, ELP brachytherapy (n=6) induced significant growth inhibition (p=0.001, ANOVA) and enhanced median survival to 27 days over controls.
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15
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Martinelli J, Denkova AG, Arranja A, Terpstra BE, Zhang W, Djanashvili K. Fate of Organic Functionalities Conjugated to Theranostic Nanoparticles upon Their Activation. Bioconjug Chem 2016; 27:446-56. [PMID: 26619135 DOI: 10.1021/acs.bioconjchem.5b00552] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Neutron activation is widely applied for the preparation of radioactive isotopes to be used in imaging and/or therapy. The type of diagnostic/therapeutic agents varies from small chelates coordinating radioactive metal ions to complex nanoparticulate systems. Design of these agents often relies on conjugation of certain organic functionalities that determine their pharmacokinetics, biodistribution, targeting, and cell-penetrating abilities, or simply on tagging them with an optical label. The conjugation chemistry at the surface of nanoparticles and their final purification often require laborious procedures that become even more troublesome when radioactive materials are involved. This study represents a thorough investigation on the effects of neutron activation on the organic moieties of functionalized nanoparticles, with special focus on (166)Ho2O3 particles conjugated with PEG-fluorescein and PEG-polyarginine motives. Spectroscopic and thermogravimetric analyses demonstrate only a limited degradation of PEG-fluorescein upon irradiation of the particles up to 10 h using a thermal neutron flux of 5 × 10(16) m(-2) s(-1). Cell experiments show that the polyarginine-based mechanisms of membrane penetration remain unaltered after exposure of the functionalized particles to the mixed field of neutrons and gammas present during activation. This confirms that radiation damage on the PEG-polyarginines is minimal. Intrinsic radiations from (166)Ho do not seem to affect the integrity of conjugated organic material. These findings open up a new perspective to simplify the procedures for the preparation of functionalized metal-based nanosystems that need to be activated by neutron irradiation in order to be applied for diagnostic and/or therapeutic purposes.
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Affiliation(s)
- Jonathan Martinelli
- Department of Biotechnology, Delft University of Technology , Julianalaan 136, 2628 BL Delft, The Netherlands
| | - Antonia G Denkova
- Radiation Science and Technology, Delft University of Technology , Mekelweg 15, 2629 JB Delft, The Netherlands
| | - Alexandra Arranja
- Radiation Science and Technology, Delft University of Technology , Mekelweg 15, 2629 JB Delft, The Netherlands.,Institut Charles Sadron (CNRS) , 23 Rue du Loess, 67034 Strasbourg, France
| | - Baukje E Terpstra
- Radiation Science and Technology, Delft University of Technology , Mekelweg 15, 2629 JB Delft, The Netherlands
| | - Wuyuan Zhang
- Department of Biotechnology, Delft University of Technology , Julianalaan 136, 2628 BL Delft, The Netherlands
| | - Kristina Djanashvili
- Department of Biotechnology, Delft University of Technology , Julianalaan 136, 2628 BL Delft, The Netherlands
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16
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Mukerji R, Schaal J, Li X, Bhattacharyya J, Asai D, Zalutsky MR, Chilkoti A, Liu W. Spatiotemporally photoradiation-controlled intratumoral depot for combination of brachytherapy and photodynamic therapy for solid tumor. Biomaterials 2015; 79:79-87. [PMID: 26702586 DOI: 10.1016/j.biomaterials.2015.11.064] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2015] [Revised: 11/09/2015] [Accepted: 11/29/2015] [Indexed: 10/22/2022]
Abstract
In an attempt to spatiotemporally control both tumor retention and the coverage of anticancer agents, we developed a photoradiation-controlled intratumoral depot (PRCITD) driven by convection enhanced delivery (CED). This intratumoral depot consists of recombinant elastin-like polypeptide (ELP) containing periodic cysteine residues and is conjugated with a photosensitizer, chlorin-e6 (Ce6) at the N-terminus of the ELP. We hypothesized that this cysteine-containing ELP (cELP) can be readily crosslinked through disulfide bonds upon exposure to oxidative agents, specifically the singlet oxygen produced during photodynamic stimulation. Upon intratumoral injection, CED drives the distribution of the soluble polypeptide freely throughout the tumor interstitium. Formation and retention of the depot was monitored using fluorescence molecular tomography imaging. When imaging shows that the polypeptide has distributed throughout the entire tumor, 660-nm light is applied externally at the tumor site. This photo-radiation wavelength excites Ce6 and generates reactive oxygen species (ROS) in the presence of oxygen. The ROS induce in situ disulfide crosslinking of the cysteine thiols, stabilizing the ELP biopolymer into a stable therapeutic depot. Our results demonstrate that this ELP design effectively forms a hydrogel both in vitro and in vivo. These depots exhibit high stability in subcutaneous tumor xenografts in nude mice and significantly improved intratumoral retention compared to controls without crosslinking, as seen by fluorescent imaging and iodine-125 radiotracer studies. The photodynamic therapy provided by the PRCITD was found to cause significant tumor inhibition in a Ce6 dose dependent manner. Additionally, the combination of PDT and intratumoral radionuclide therapy co-delivered by PRCITD provided a greater antitumor effect than either monotherapy alone. These results suggest that the PRCITD could provide a stable platform for delivering synergistic, anti-cancer drug depots.
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Affiliation(s)
- Ratul Mukerji
- Department of Biomedical Engineering, Duke University, Durham, NC, 27708, USA
| | - Jeffrey Schaal
- Department of Biomedical Engineering, Duke University, Durham, NC, 27708, USA
| | - Xinghai Li
- Department of Biomedical Engineering, Duke University, Durham, NC, 27708, USA
| | | | - Daisuke Asai
- Department of Microbiology, St. Marianna University School of Medicine, Kawasaki, Kanagawa Prefecture, Japan
| | | | - Ashutosh Chilkoti
- Department of Biomedical Engineering, Duke University, Durham, NC, 27708, USA
| | - Wenge Liu
- Department of Biomedical Engineering, Duke University, Durham, NC, 27708, USA.
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17
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Černoch P, Černochová Z, Kučka J, Hrubý M, Petrova S, Štěpánek P. Thermoresponsive polymer system based on poly(N-vinylcaprolactam) intended for local radiotherapy applications. Appl Radiat Isot 2015; 98:7-12. [DOI: 10.1016/j.apradiso.2015.01.005] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2014] [Revised: 12/29/2014] [Accepted: 01/05/2015] [Indexed: 11/26/2022]
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18
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Hrubý M, Filippov SK, Štěpánek P. Smart polymers in drug delivery systems on crossroads: Which way deserves following? Eur Polym J 2015. [DOI: 10.1016/j.eurpolymj.2015.01.016] [Citation(s) in RCA: 97] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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19
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Pospisilova A, Filippov SK, Bogomolova A, Turner S, Sedlacek O, Matushkin N, Cernochova Z, Stepanek P, Hruby M. Glycogen-graft-poly(2-alkyl-2-oxazolines) – the new versatile biopolymer-based thermoresponsive macromolecular toolbox. RSC Adv 2014. [DOI: 10.1039/c4ra10315g] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
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20
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de la Puente P, Azab AK. Delivery systems for brachytherapy. J Control Release 2014; 192:19-28. [DOI: 10.1016/j.jconrel.2014.06.057] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2014] [Revised: 06/26/2014] [Accepted: 06/27/2014] [Indexed: 11/29/2022]
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21
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Cardoso AM, Calejo MT, Morais CM, Cardoso AL, Cruz R, Zhu K, Pedroso de Lima MC, Jurado AS, Nyström B. Application of Thermoresponsive PNIPAAM-b-PAMPTMA Diblock Copolymers in siRNA Delivery. Mol Pharm 2014; 11:819-27. [DOI: 10.1021/mp400510a] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Ana M. Cardoso
- CNC−Centre
for Neurosciences and Cell Biology, University of Coimbra, 3004-517 Coimbra, Portugal
- Department
of Life Sciences, University of Coimbra, 3004-517 Coimbra, Portugal
| | - M. Teresa Calejo
- Department
of Electronics and Communications Engineering, Tampere University of Technology, 33720 Tampere, Finland
| | - Catarina M. Morais
- CNC−Centre
for Neurosciences and Cell Biology, University of Coimbra, 3004-517 Coimbra, Portugal
- Department
of Life Sciences, University of Coimbra, 3004-517 Coimbra, Portugal
| | - Ana L. Cardoso
- CNC−Centre
for Neurosciences and Cell Biology, University of Coimbra, 3004-517 Coimbra, Portugal
| | - Rita Cruz
- Department
of Life Sciences, University of Coimbra, 3004-517 Coimbra, Portugal
| | - Kaizheng Zhu
- Department
of Chemistry, University of Oslo, 0313 Oslo, Norway
| | - Maria C. Pedroso de Lima
- CNC−Centre
for Neurosciences and Cell Biology, University of Coimbra, 3004-517 Coimbra, Portugal
- Department
of Life Sciences, University of Coimbra, 3004-517 Coimbra, Portugal
| | - Amália S. Jurado
- CNC−Centre
for Neurosciences and Cell Biology, University of Coimbra, 3004-517 Coimbra, Portugal
- Department
of Life Sciences, University of Coimbra, 3004-517 Coimbra, Portugal
| | - Bo Nyström
- Department
of Chemistry, University of Oslo, 0313 Oslo, Norway
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22
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Liu W, McDaniel J, Li X, Asai D, Quiroz FG, Schaal J, Park JS, Zalutsky M, Chilkoti A. Brachytherapy using injectable seeds that are self-assembled from genetically encoded polypeptides in situ. Cancer Res 2013; 72:5956-65. [PMID: 23155121 DOI: 10.1158/0008-5472.can-12-2127] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Brachytherapy is a common clinical technique involving implantation of sealed radioactive "seeds" within a tumor to selectively irradiate the tumor mass while minimizing systemic toxicity. To mitigate the disadvantages associated with complex surgical implantation and subsequent device removal procedures, we have developed an alternative approach using a genetically encoded peptide polymer solution composed of a thermally responsive elastin-like polypeptide (ELP) radiolabeled with (131)I that self-assembles into radionuclide seeds upon intratumoral injection. The formation of these nontoxic and biodegradable polymer seeds led to prolonged intratumoral retention (~85% ID/tumor 7 days postinjection) of the radionuclide, elicited a tumor growth delay in 100% of the tumors in two human xenografts (FaDu and PC-3), and cured more than 67% of tumor-bearing animals after a single administration of labeled ELP. These results suggest that in situ self-assembly of biodegradable and injectable radionuclide-containing polypeptide seeds could be a promising therapeutic alternative to conventional brachytherapy.
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Affiliation(s)
- Wenge Liu
- Department of Biomedical Engineering, Duke University, Durham, North Carolina, USA.
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23
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Soares DCF, Cardoso VN, de Barros ALB, de Souza CM, Cassali GD, de Oliveira MC, Ramaldes GA. Antitumoral activity and toxicity of PEG-coated and PEG-folate-coated pH-sensitive liposomes containing 159Gd-DTPA-BMA in Ehrlich tumor bearing mice. Eur J Pharm Sci 2012; 45:58-64. [DOI: 10.1016/j.ejps.2011.10.018] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2011] [Revised: 10/26/2011] [Accepted: 10/27/2011] [Indexed: 10/15/2022]
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