1
|
Ma L, Grant C, Gallazzi F, Watkinson LD, Carmack TL, Embree MF, Smith CJ, Medvedev D, Cutler CS, Li Y, Wilbur DS, Hennkens HM, Jurisson SS. Development and biodistribution studies of 77As-labeled trithiol RM2 bioconjugates for prostate cancer: Comparison of [77As]As-trithiol-Ser-Ser-RM2 vs. [77As]As-trithiol-Glu-Ser-RM2. Nucl Med Biol 2022; 108-109:61-69. [DOI: 10.1016/j.nucmedbio.2022.03.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2021] [Revised: 02/26/2022] [Accepted: 03/11/2022] [Indexed: 02/07/2023]
|
2
|
Naskar N, Lahiri S. Separation of 71,72As from alpha particle induced gallium oxide target by solid cation and anion exchangers, DOWEX-50 and DOWEX-1. Appl Radiat Isot 2021; 176:109876. [PMID: 34330034 DOI: 10.1016/j.apradiso.2021.109876] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2021] [Revised: 06/28/2021] [Accepted: 07/20/2021] [Indexed: 11/26/2022]
Abstract
46.0 MeV alpha particle induced reaction on gallium oxide target results production of no-carrier-added (NCA) 71,72As and 67Ga tracer. 71,72As were separated from the target matrix by solid liquid extraction (SLX) using two different exchangers, Dowex-1 and Dowex-50. At best condition of 0.2 g Dowex-1 + 6 M HCl and 0.2 g Dowex-50 + 10-3 M HCl bulk gallium was completely extracted leaving behind NCA 71,72As in the aqueous phase. Dowex-50 was found to be more suitable and offered high separation factor, 3.2 × 105.
Collapse
Affiliation(s)
- Nabanita Naskar
- Saha Institute of Nuclear Physics, 1/AF Bidhannagar, Kolkata, 700064, India
| | - Susanta Lahiri
- Saha Institute of Nuclear Physics, 1/AF Bidhannagar, Kolkata, 700064, India; Homi Bhabha National Institute, Anushakti Nagar, Mumbai, 400094, India.
| |
Collapse
|
3
|
Najafi Khosroshahi F, Feng Y, Ma L, Manring S, Rold TL, Gallazzi FA, Kelley SP, Embree MF, Hennkens HM, Hoffman TJ, Jurisson SS. A New, Second Generation Trithiol Bifunctional Chelate for 72,77As: Trithiol(b)-(Ser) 2-RM2. Bioconjug Chem 2021; 32:1364-1373. [PMID: 33423467 DOI: 10.1021/acs.bioconjchem.0c00658] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
Trithiol chelates are suitable for labeling radioarsenic (72As: 2.49 MeV β+, 26 h; 77As: 0.683 MeV β-, 38.8 h) to form potential theranostic radiopharmaceuticals for positron emission tomography (PET) imaging and therapy. A trithiol(b)-(Ser)2-RM2 bioconjugate and its arsenic complex were synthesized and characterized. The trithiol(b)-(Ser)2-RM2 bioconjugate was radiolabeled with no-carrier-added 77As in over 95% radiochemical yield and was stable for over 48 h, and in vitro IC50 cell binding studies of [77As]As-trithiol(b)-(Ser)2-RM2 in PC-3 cells demonstrated high affinity for the gastrin-releasing peptide (GRP) receptor (low nanomolar range). Limited biodistribution studies in normal mice were performed with HPLC purified 77As-trithiol(b)-(Ser)2-RM2 demonstrating both pancreatic uptake and hepatobiliary clearance.
Collapse
Affiliation(s)
| | | | | | | | - Tammy L Rold
- Research Service, Harry S. Truman Memorial Veterans' Hospital, Columbia, Missouri 65201, United States
| | | | | | | | | | - Timothy J Hoffman
- Research Service, Harry S. Truman Memorial Veterans' Hospital, Columbia, Missouri 65201, United States
| | | |
Collapse
|
4
|
Naskar N, Lahiri S. Separation of no-carrier-added 71,72As from 46 MeV alpha particle irradiated gallium oxide target. RADIOCHIM ACTA 2021. [DOI: 10.1515/ract-2020-0120] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Abstract
No-carrier-added (NCA) 71,72As radionuclides were produced by irradiating gallium oxide target by 46 MeV α-particles. NCA 71,72As was separated from the target matrix by liquid-liquid extraction (LLX) using trioctyl amine (TOA) and tricaprylmethylammonium chloride (aliquat-336) diluted in cyclohexane. The bulk gallium was quantitatively extracted into the organic phase leaving 71,72As in the aqueous phase. Complete separation was observed at 3 M HCl + 0.1 M TOA and 2 M HCl + 0.01 M aliquat-336.
Collapse
Affiliation(s)
- Nabanita Naskar
- Saha Institute of Nuclear Physics , 1/AF Bidhannagar , Kolkata , 700064 , India
| | - Susanta Lahiri
- Saha Institute of Nuclear Physics , 1/AF Bidhannagar , Kolkata , 700064 , India
| |
Collapse
|
5
|
Coenen HH, Ermert J. Expanding PET-applications in life sciences with positron-emitters beyond fluorine-18. Nucl Med Biol 2020; 92:241-269. [PMID: 32900582 DOI: 10.1016/j.nucmedbio.2020.07.003] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2020] [Accepted: 07/09/2020] [Indexed: 12/20/2022]
Abstract
Positron-emission-tomography (PET) has become an indispensable diagnostic tool in modern nuclear medicine. Its outstanding molecular imaging features allow repetitive studies on one individual and with high sensitivity, though no interference. Rather few positron-emitters with near favourable physical properties, i.e. carbon-11 and fluorine-18, furnished most studies in the beginning, preferably if covalently bound as isotopic label of small molecules. With the advancement of PET-devices the scope of in vivo research in life sciences and especially that of medical applications expanded, and other than "standard" PET-nuclides received increasing significance, like the radiometals copper-64 and gallium-68. Especially during the last decades, positron-emitters of other chemical elements have gotten into the focus of interest, concomitant with the technical advancements in imaging and radionuclide production. With known nuclear imaging properties and main production methods of emerging positron-emitters their usefulness for medical application is promising and even proven for several ones already. Unfortunate decay properties could be corrected for, and β+-emitters, especially with a longer half-life, provided new possibilities for application where slower processes are of importance. Further on, (bio)chemical features of positron-emitters of other elements, among there many metals, not only expanded the field of classical clinical investigations, but also opened up new fields of application. Appropriately labelled peptides, proteins and nanoparticles lend itself as newer probes for PET-imaging, e.g. in theragnostic or PET/MR hybrid imaging. Furthermore, the potential of non-destructive in-vivo imaging with positron-emission-tomography directs the view on further areas of life sciences. Thus, exploiting the excellent methodology for basic research on molecular biochemical functions and processes is increasingly encouraged as well in areas outside of health, such as plant and environmental sciences.
Collapse
Affiliation(s)
- Heinz H Coenen
- Institut für Neurowissenschaften und Medizin, INM-5, Nuklearchemie, Forschungszentrum Jülich GmbH, D-52425 Jülich, Germany.
| | - Johannes Ermert
- Institut für Neurowissenschaften und Medizin, INM-5, Nuklearchemie, Forschungszentrum Jülich GmbH, D-52425 Jülich, Germany.
| |
Collapse
|
6
|
Sanders VA, Cutler CS. Radioarsenic: A promising theragnostic candidate for nuclear medicine. Nucl Med Biol 2020; 92:184-201. [PMID: 32376084 DOI: 10.1016/j.nucmedbio.2020.03.004] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2020] [Accepted: 03/18/2020] [Indexed: 10/24/2022]
Abstract
Molecular imaging is a non-invasive process that enables the visualization, characterization, and quantitation of biological processes at the molecular and cellular level. With the emergence of theragnostic agents to diagnose and treat disease for personalized medicine there is a growing need for matched pairs of isotopes. Matched pairs offer the unique opportunity to obtain patient specific information from SPECT or PET diagnostic studies to quantitate in vivo function or receptor density to inform and tailor therapeutic treatment. There are several isotopes of arsenic that have emissions suitable for either or both diagnostic imaging and radiotherapy. Their half-lives are long enough to pair them with peptides and antibodies which take longer to reach maximum uptake to facilitate improved patient pharmacokinetics and dosimetry then can be obtained with shorter lived radionuclides. Arsenic-72 even offers availability from a generator that can be shipped to remote sites and thus enhances availability. Arsenic has a long history as a diagnostic agent, but until recently has suffered from limited availability, lack of suitable chelators, and concerns about toxicity have inhibited its use in nuclear medicine. However, new production methods and novel chelators are coming online and the use of radioarsenic in the pico and nanomolar scale is well below the limits associated with toxicity. This manuscript will review the production routes, separation chemistry, radiolabeling techniques and in vitro/in vivo studies of three medically relevant isotopes of arsenic (arsenic-74, arsenic-72, and arsenic-77).
Collapse
Affiliation(s)
- Vanessa A Sanders
- Collider Accelerator Department, Brookhaven National Laboratory, Upton, NY 11973, USA
| | - Cathy S Cutler
- Collider Accelerator Department, Brookhaven National Laboratory, Upton, NY 11973, USA.
| |
Collapse
|
7
|
Oláh Z, Vogg ATJ, Kremmer T, Szűcs Z, Varga Z, Dóczi R. Optimization of the reduction of 74As(V) to 74As(III) and of the labelling of dithiol dihydrolipoic acid. Appl Radiat Isot 2019; 149:75-82. [PMID: 31029937 DOI: 10.1016/j.apradiso.2019.04.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2018] [Revised: 03/15/2019] [Accepted: 04/03/2019] [Indexed: 01/19/2023]
Abstract
The radiochemical separation of n.c.a. arsenic on its own or for radio-labelling purposes usually involves the issue of reducing arsenic(V). Numerous approaches for reducing pentavalent arsenic have been examined. A novel HPLC method has also been presented for accessing the efficiency of the reduction in terms of *As(III)/*As(V). Labelling with trivalent radioarsenic seems to be a promising research field to access new radiopharmaceuticals, for example, using arsenic as a surrogate for phosphorus. Moreover, as a model system, the labelling reaction of *As(III) with dihydrolipoic acid has been systematically optimized.
Collapse
Affiliation(s)
- Zita Oláh
- National Food Chain Safety Office, Radioanalytical Reference Laboratory, Fogoly street 13-15, H-1182, Budapest, Hungary
| | - Andreas T J Vogg
- Department of Nuclear Medicine, RWTH University Hospital Aachen, Pauwelsstr. 30, D-52074, Aachen, Germany
| | - Tibor Kremmer
- Institute of Chemistry, Faculty of Science, Eötvös Loránd University, Pázmány Péter sétány 1/A, H-1117, Budapest, Hungary
| | - Zoltán Szűcs
- Institute for Nuclear Research of the Hungarian Academy of Sciences, 4+Bem tér 18/c, H-4026, Debrecen, Hungary.
| | - Zoltán Varga
- Institute of Materials and Environmental Chemistry, Research Centre for Natural Sciences of the Hungarian Academy of Sciences, Magyar tudósok körútja 2, H-1117, Budapest, Hungary
| | - Rita Dóczi
- Budapest University of Technology and Economics, Institute of Nuclear Techniques, 7-9 Műegyetem rkp, H-1111, Budapest, Hungary
| |
Collapse
|
8
|
DeGraffenreid AJ, Medvedev DG, Phelps TE, Gott MD, Smith SV, Jurisson SS, Cutler CS. Cross-section measurements and production of 72Se with medium to high energy protons using arsenic containing targets. RADIOCHIM ACTA 2019. [DOI: 10.1515/ract-2018-2931] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
Experiments were performed to evaluate production of 72Se, parent radionuclide of the positron emitter 72As, at high energy at the Brookhaven Linac Isotope Producer (BLIP). Excitation functions for 75As(p, xn)72/75Se in the 52-105 MeV energy range were measured by irradiating thin gallium arsenide (GaAs) wafers. Maximum cross section value for the natAs(p, 4n)72Se reaction in the energy range was 103±9 mb at 52±1 MeV. Production size GaAs and arsenic metal (As°) targets were irradiated with 136 μA and 165 μA beam current possessing an initial Linac energy of 117 MeV. A total of 3.77±0.1 GBq (102±3 mCi) of 72Se was produced from a GaAs target at a calculated target entrance energy of 105.4 MeV, and 13.8±0.3 GBq (373±8 mCi) of 72Se from an As° target at a calculated incident energy of 49.5 MeV irradiated for 116.5 h and 68.9 h, respectively.
Collapse
Affiliation(s)
| | - Dmitri G. Medvedev
- Collider Accelerator Department , Brookhaven National Laboratory , Upton, NY 11973 , USA
| | - Timothy E. Phelps
- Department of Chemistry , University of Missouri , Columbia, MO 65211 , USA
| | - Matthew D. Gott
- Department of Chemistry , University of Missouri , Columbia, MO 65211 , USA
| | - Suzanne V. Smith
- Collider Accelerator Department , Brookhaven National Laboratory , Upton, NY 11973 , USA
| | - Silvia S. Jurisson
- Department of Chemistry , University of Missouri , Columbia, MO 65211 , USA
| | - Cathy S. Cutler
- Collider Accelerator Department , Brookhaven National Laboratory , Upton, NY 11973 , USA
| |
Collapse
|
9
|
Feng Y, Phipps MD, Phelps TE, Okoye NC, Baumeister JE, Wycoff DE, Dorman EF, Wooten AL, Vlasenko V, Berendzen AF, Wilbur DS, Hoffman TJ, Cutler CS, Ketring AR, Jurisson SS. Evaluation of 72Se/ 72As generator and production of 72Se for supplying 72As as a potential PET imaging radionuclide. Appl Radiat Isot 2019; 143:113-122. [PMID: 30408634 DOI: 10.1016/j.apradiso.2018.10.026] [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: 06/21/2018] [Revised: 10/22/2018] [Accepted: 10/29/2018] [Indexed: 11/23/2022]
Abstract
Positron-emitting 72As is the PET imaging counterpart for beta-emitting 77As. Its parent, no carrier added (n.c.a.) 72Se, was produced for a 72Se/72As generator by irradiating an enriched 7°Ge metal-graphite target via the 70Ge(α, 2 n)72Se reaction. Target dissolution used a fast, environmentally friendly method with 93% radioactivity recovery. Chromatographic parameters of the 72Se/72As generator were evaluated, the eluted n.c.a. 72As was characterized with a phantom imaging study, and the previously reported trithiol and aryl-dithiol ligand systems were radiolabeled with the separated n.c.a. 72As in high yield.
Collapse
Affiliation(s)
| | | | | | | | | | | | | | | | | | | | | | | | | | - Alan R Ketring
- University of Missouri Research Reactor Center, Columbia, MO, USA
| | - Silvia S Jurisson
- University of Missouri, Columbia, MO, USA; University of Missouri Research Reactor Center, Columbia, MO, USA.
| |
Collapse
|
10
|
|
11
|
Aluicio-Sarduy E, Ellison PA, Barnhart TE, Cai W, Nickles RJ, Engle JW. PET radiometals for antibody labeling. J Labelled Comp Radiopharm 2018; 61:636-651. [PMID: 29341227 PMCID: PMC6050152 DOI: 10.1002/jlcr.3607] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2017] [Revised: 12/29/2017] [Accepted: 01/05/2018] [Indexed: 02/06/2023]
Abstract
Recent advances in molecular characterization of tumors have made possible the emergence of new types of cancer therapies where traditional cytotoxic drugs and nonspecific chemotherapy can be complemented with targeted molecular therapies. One of the main revolutionary treatments is the use of monoclonal antibodies (mAbs) that selectively target the disseminated tumor cells while sparing normal tissues. mAbs and related therapeutics can be efficiently radiolabeled with a wide range of radionuclides to facilitate preclinical and clinical studies. Non-invasive molecular imaging techniques, such as Positron Emission Tomography (PET), using radiolabeled mAbs provide useful information on the whole-body distribution of the biomolecules, which may enable patient stratification, diagnosis, selection of targeted therapies, evaluation of treatment response, and prediction of dose limiting tissue and adverse effects. In addition, when mAbs are labeled with therapeutic radionuclides, the combination of immunological and radiobiological cytotoxicity may result in enhanced treatment efficacy. The pharmacokinetic profile of antibodies demands the use of long half-life isotopes for longitudinal scrutiny of mAb biodistribution and precludes the use of well-stablished short half-life isotopes. Herein, we review the most promising PET radiometals with chemical and physical characteristics that make the appealing for mAb labeling, highlighting those with theranostic radioisotopes.
Collapse
Affiliation(s)
| | - Paul A. Ellison
- University of Wisconsin-Madison, Department of Medical Physics, Madison, Wisconsin, USA
| | - Todd E. Barnhart
- University of Wisconsin-Madison, Department of Medical Physics, Madison, Wisconsin, USA
| | - Weibo Cai
- University of Wisconsin-Madison, Department of Medical Physics, Madison, Wisconsin, USA
- University of Wisconsin-Madison, Department of Radiology, Madison, Wisconsin, USA
- University of Wisconsin-Madison Carbone Cancer Center, Carbon Cancer Center, Madison, Wisconsin, USA
| | - Robert Jerry Nickles
- University of Wisconsin-Madison, Department of Medical Physics, Madison, Wisconsin, USA
| | - Jonathan W. Engle
- University of Wisconsin-Madison, Department of Medical Physics, Madison, Wisconsin, USA
- University of Wisconsin-Madison, Department of Radiology, Madison, Wisconsin, USA
| |
Collapse
|
12
|
Feng Y, DeGraffenreid AJ, Phipps MD, Rold TL, Okoye NC, Gallazzi FA, Barnes CL, Cutler CS, Ketring AR, Hoffman TJ, Jurisson SS. A trithiol bifunctional chelate for 72,77As: A matched pair theranostic complex with high in vivo stability. Nucl Med Biol 2018; 61:1-10. [DOI: 10.1016/j.nucmedbio.2018.03.001] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2017] [Revised: 02/13/2018] [Accepted: 03/04/2018] [Indexed: 12/21/2022]
|
13
|
Labelling with positron emitters of pnicogens and chalcogens. J Labelled Comp Radiopharm 2017; 61:179-195. [DOI: 10.1002/jlcr.3574] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2017] [Revised: 09/07/2017] [Accepted: 09/29/2017] [Indexed: 11/07/2022]
|
14
|
Feng Y, Phelps TE, Carroll V, Gallazzi F, Sieckman G, Hoffman TJ, Barnes CL, Ketring AR, Hennkens HM, Jurisson SS. Chemistry and radiochemistry of As, Re and Rh isotopes relevant to radiopharmaceutical applications: high specific activity radionuclides for imaging and treatment. Dalton Trans 2017; 46:14677-14690. [DOI: 10.1039/c7dt02407j] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Advances in production, separation, target recovery, and chelation chemistry of high specific activity radionuclides will promote new theranostic agent development.
Collapse
Affiliation(s)
- Yutian Feng
- Department of Chemistry
- University of Missouri
- Columbia
- USA
| | - Tim E. Phelps
- Department of Chemistry
- University of Missouri
- Columbia
- USA
| | | | - Fabio Gallazzi
- Structural Biology Core
- University of Missouri
- Columbia
- USA
| | - Gary Sieckman
- Research Division
- Harry S. Truman Memorial Veterans’ Hospital
- Columbia
- USA
| | | | | | - Alan R. Ketring
- University of Missouri Research Reactor Center (MURR)
- University of Missouri
- Columbia
- USA
| | - Heather M. Hennkens
- University of Missouri Research Reactor Center (MURR)
- University of Missouri
- Columbia
- USA
| | | |
Collapse
|
15
|
DeGraffenreid AJ, Feng Y, Wycoff DE, Morrow R, Phipps MD, Cutler CS, Ketring AR, Barnes CL, Jurisson SS. Dithiol Aryl Arsenic Compounds as Potential Diagnostic and Therapeutic Radiopharmaceuticals. Inorg Chem 2016; 55:8091-8. [DOI: 10.1021/acs.inorgchem.6b01175] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Anthony J. DeGraffenreid
- Department of Chemistry and ‡Research Reactor
Center (MURR), University of Missouri, Columbia, Missouri 65211, United States
| | - Yutian Feng
- Department of Chemistry and ‡Research Reactor
Center (MURR), University of Missouri, Columbia, Missouri 65211, United States
| | - Donald E. Wycoff
- Department of Chemistry and ‡Research Reactor
Center (MURR), University of Missouri, Columbia, Missouri 65211, United States
| | - Ryan Morrow
- Department of Chemistry and ‡Research Reactor
Center (MURR), University of Missouri, Columbia, Missouri 65211, United States
| | - Michael D. Phipps
- Department of Chemistry and ‡Research Reactor
Center (MURR), University of Missouri, Columbia, Missouri 65211, United States
| | - Cathy S. Cutler
- Department of Chemistry and ‡Research Reactor
Center (MURR), University of Missouri, Columbia, Missouri 65211, United States
| | - Alan R. Ketring
- Department of Chemistry and ‡Research Reactor
Center (MURR), University of Missouri, Columbia, Missouri 65211, United States
| | - Charles L. Barnes
- Department of Chemistry and ‡Research Reactor
Center (MURR), University of Missouri, Columbia, Missouri 65211, United States
| | - Silvia S. Jurisson
- Department of Chemistry and ‡Research Reactor
Center (MURR), University of Missouri, Columbia, Missouri 65211, United States
| |
Collapse
|