1
|
Eppard E, Roesch F. 44Sc-labeling of RM2 as potential imaging and dosimetry agent of prostate cancer. Nucl Med Biol 2019. [DOI: 10.1016/s0969-8051(19)30313-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
2
|
Meckel M, Bergmann R, Miederer M, Roesch F. Bone targeting compounds for radiotherapy and imaging: *Me(III)-DOTA conjugates of bisphosphonic acid, pamidronic acid and zoledronic acid. EJNMMI Radiopharm Chem 2016; 1:14. [PMID: 29564390 PMCID: PMC5843815 DOI: 10.1186/s41181-016-0017-1] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2016] [Accepted: 09/02/2016] [Indexed: 12/02/2022] Open
Abstract
Background Bisphosphonates have a high adsorption on calcified tissues and are commonly used in the treatment of bone disorder diseases. Conjugates of bisphosphonates with macrocyclic chelators open new possibilities in bone targeted radionuclide imaging and therapy. Subsequent to positron emission tomography (PET) examinations utilizing 68Ga-labelled analogues, endoradiotheraphy with 177Lu-labelled macrocyclic bisphosphonates may have a great potential in the treatment of painful skeletal metastases. Methods Based on the established pharmaceuticals pamidronate and zoledronate two new DOTA-α-OH-bisphosphonates, DOTAPAM and DOTAZOL(MM1.MZ) were successfully synthesized. The ligands were labelled with the positron emitting nuclide 68Ga and the β- emitting nuclide 177Lu and compared in in vitro studies and in ex vivo biodistribution studies together with small animal PET and single photon emission computed tomography (SPECT) studies against [18F]NaF and a known DOTA-α-H-bisphosphonate conjugate (BPAPD) in healthy Wistar rats. Results The new DOTA-bisphosphonates can be labelled in high yield of 80 to 95 % in 15 min with post-processed 68Ga and >98 % with 177Lu. The tracers showed very low uptake in soft tissue, a fast renal clearance and a high accumulation on bone. The best compound was [68Ga]DOTAZOL (SUV Femur = 5.4 ± 0.6) followed by [18F]NaF (SUV Femur = 4.8 ± 0.2), [68Ga]DOTAPAM (SUV Femur = 4.5 ± 0.2) and [68Ga]BPAPD (SUV Femur = 3.2 ± 0.3). [177Lu]DOTAZOL showed a similar distribution as the diagnostic 68Ga complex. Conclusion The 68Ga labelled compounds showed a promising pharmacokinetics, with similar uptake profile and distribution kinetics. Bone accumulation was highest for [68Ga]DOTAZOL, which makes this compound probably an interesting bone targeting agent for a therapeutic approach with 177Lu. The therapeutic compound [177Lu]DOTAZOL showed a high target-to-background ratio. SPECT experiments showed concordance to the PET scans in healthy rats. [68Ga/177Lu]DOTAZOL appears to be a potential theranostic combination in the management of disseminated bone metastases. Electronic supplementary material The online version of this article (doi:10.1186/s41181-016-0017-1) contains supplementary material, which is available to authorized users.
Collapse
Affiliation(s)
- M Meckel
- Institute of Nuclear Chemistry, Johannes-Gutenberg-University Mainz, Fritz-Strassmann-Weg 2, Mainz, 55128 Germany
| | - R Bergmann
- Helmholtz-Zentrum Dresden-Rossendorf, Dresden, Germany
| | - M Miederer
- Clinic of Nuclear Medicine, University Medicine Mainz, Mainz, Germany
| | - F Roesch
- Institute of Nuclear Chemistry, Johannes-Gutenberg-University Mainz, Fritz-Strassmann-Weg 2, Mainz, 55128 Germany
| |
Collapse
|
3
|
Riss PJ, Stockhofe K, Roesch F. Tropane-derived (11) C-labelled and (18) F-labelled DAT ligands. J Labelled Comp Radiopharm 2014; 56:149-58. [PMID: 24285320 DOI: 10.1002/jlcr.3018] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2012] [Revised: 11/30/2012] [Accepted: 12/04/2012] [Indexed: 01/02/2023]
Abstract
Radiolabelling of cocaine-derived 3-phenyltropanes for dopamine transporter positron emission tomography with (18) F and (11) C is reviewed.
Collapse
Affiliation(s)
- P J Riss
- Wolfson Brain Imaging Centre, University of Cambridge, Box 65 Addenbrooke's Hospital, CB2 0QQ, Cambridge, UK
| | | | | |
Collapse
|
4
|
Radchenko V, Filosofov D, Bochko O, Lebedev N, Rakhimov A, Hauser H, Eisenhut M, Aksenov N, Bozhikov G, Ponsard B, Roesch F. Separation of 90Nb from zirconium target for application in immuno-PET. RADIOCHIM ACTA 2014. [DOI: 10.1515/ract-2013-2156] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
Fast progressing immuno-PET asks to explore new radionuclides. One of the promising candidates is 90Nb. It
has a half-life of 14.6 h that allows visualizing and quantifying biological processes with medium and slow
kinetics, such as tumor accumulation of antibodies and antibodies fragments or drug delivery systems and
nanoparticles. 90Nb exhibits a positron branching of 53% and an average kinetic energy of emitted
positrons of E
mean =0.35 MeV. Currently, radionuclide production routes and Nb
V
labeling techniques are explored to turn this radionuclide into a useful imaging probe. However, efficient separation of
90Nb from irradiated targets remains in challenge.
Ion exchange based separation of 90Nb from zirconium targets was investigated in systems AG 1 × 8 –
HCl/H2O2 and UTEVA-HCl. 95Nb (t
1/2 = 35.0 d), 95Zr (t
1/2 = 64.0 d) and 92m
Nb (t
1/2 = 10.15 d) were chosen for studies on distribution
coefficients. Separation after AG 1 × 8 anion exchange yields 99% of 90/95Nb. Subsequent use of
a solid-phase extraction step on UTEVA resin further decontaminates 90/95Nb from traces of zirconium with yields
95% of 90/95Nb.
A semi-automated separation takes one hour to obtain an overall recovery of 90/95Nb of 90%. The amount of
Zr was reduced by factor of 108. The selected separation provides rapid preparation (< 1 h) of high purity
90Nb appropriate for the synthesis of 90Nb-radiopharmaceuticals, relevant for purposes of
immuno-PET. Applying the radioniobium obtained, 90/95Nb-labeling of a monoclonal antibody (rituximab)
modified with desferrioxamine achieved labeling yields of >90% after 1 h incubation at room temperature.
Collapse
Affiliation(s)
- V. Radchenko
- Institute of Nuclear Chemistry, Johannes Gutenberg-University Mainz, Fritz-Strassmann-Weg 2, D-55128 Mainz, Germany
| | - D. V. Filosofov
- Dzhelepov Laboratory of Nuclear Problems, Joint Institute of Nuclear Research, Joliot-Curie 6, 141980, Dubna, Moscow region, Russian Federation
| | - O. K. Bochko
- Dzhelepov Laboratory of Nuclear Problems, Joint Institute of Nuclear Research, Joliot-Curie 6, 141980, Dubna, Moscow region, Russian Federation
| | - N. A. Lebedev
- Dzhelepov Laboratory of Nuclear Problems, Joint Institute of Nuclear Research, Joliot-Curie 6, 141980, Dubna, Moscow region, Russian Federation
| | - A. V. Rakhimov
- Dzhelepov Laboratory of Nuclear Problems, Joint Institute of Nuclear Research, Joliot-Curie 6, 141980, Dubna, Moscow region, Russian Federation
| | - H. Hauser
- Radiopharmaceutical Chemistry, German Cancer Research Center, Im Neuenheimer Feld 280, D-69120 Heidelberg, Germany
| | - M. Eisenhut
- Radiopharmaceutical Chemistry, German Cancer Research Center, Im Neuenheimer Feld 280, D-69120 Heidelberg, Germany
| | - N. V. Aksenov
- Flerov Laboratory of Nuclear Reactions, Joint Institute of Nuclear Research, Joliot-Curie 6, 141980, Dubna, Moscow region, Russian Federation
| | - G. A. Bozhikov
- Flerov Laboratory of Nuclear Reactions, Joint Institute of Nuclear Research, Joliot-Curie 6, 141980, Dubna, Moscow region, Russian Federation
| | - B. Ponsard
- Institute of Nuclear Materials Science, BR2 Reactor, Radioisotopes and NTD Silicon Production, Belgian Nuclear Research Centre, SCKCEN, Boeretang 200, BE-2400 Mol, Belgium
| | - F. Roesch
- Institute of Nuclear Chemistry, Johannes Gutenberg-University Mainz, Fritz-Strassmann-Weg 2, D-55128 Mainz, Germany
| |
Collapse
|
5
|
Martins AF, Prata MIM, Rodrigues SPJ, Geraldes CFGC, Riss PJ, Amor-Coarasa A, Burchardt C, Kroll C, Roesch F. Spectroscopic, radiochemical, and theoretical studies of the Ga3+-N-2-hydroxyethyl piperazine-N′-2-ethanesulfonic acid (HEPES buffer) system: evidence for the formation of Ga3+- HEPES complexes in68 Ga labeling reactions. Contrast Media Mol Imaging 2013; 8:265-73. [DOI: 10.1002/cmmi.1517] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/17/2012] [Revised: 08/20/2012] [Accepted: 10/15/2012] [Indexed: 12/29/2022]
Affiliation(s)
| | | | | | | | - P. J. Riss
- The Wolfson Brain Imaging Centre; University of Cambridge; Box 65 Addenbrooke's Hospital; Cambridge; CB2 0QQ; UK
| | | | - C. Burchardt
- Institute of Nuclear Chemistry; Johannes Gutenberg-University; Fritz-Strassmann-Weg 2; 55128; Mainz; Germany
| | - C. Kroll
- Institute of Nuclear Chemistry; Johannes Gutenberg-University; Fritz-Strassmann-Weg 2; 55128; Mainz; Germany
| | - F. Roesch
- Institute of Nuclear Chemistry; Johannes Gutenberg-University; Fritz-Strassmann-Weg 2; 55128; Mainz; Germany
| |
Collapse
|
6
|
Roesch F. Scandium-44: benefits of a long-lived PET radionuclide available from the (44)Ti/(44)Sc generator system. Curr Radiopharm 2012; 5:187-201. [PMID: 22642388 DOI: 10.2174/1874471011205030187] [Citation(s) in RCA: 80] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2011] [Revised: 03/23/2012] [Accepted: 04/05/2012] [Indexed: 11/22/2022]
Abstract
(44)Ti/(44)Sc radionuclide generators are of interest for molecular imaging. The 3.97 hours half-life of (44)Sc and its high positron branching of 94.27% may stimulate the application of (44)Sc-labeled PET radiopharmaceuticals. This review describes the current status of (44)Ti production, (44)Ti/(44)Sc radionuclide generator development, post-processing of generator eluates towards medical application, identification of ligands adequate to Sc(III) co-ordination chemistry, proof-of-principle labeling of (44)Sc-DOTA-octreotides, investigation of in vitro and in vivo parameters, and initial applications for molecular imaging - both in small animals and humans.
Collapse
Affiliation(s)
- F Roesch
- Institute of Nuclear Chemistry, University of Mainz, D-55128 Mainz, Germany.
| |
Collapse
|
7
|
Roesch F. Maturation of a Key Resource – The Germanium-68/Gallium-68 Generator: Development and New Insights. Curr Radiopharm 2012; 5:202-11. [DOI: 10.2174/1874471011205030202] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2011] [Revised: 03/28/2012] [Accepted: 04/10/2012] [Indexed: 11/22/2022]
|
8
|
Klumpers F, van Gerven JM, Prinssen EPM, Niklson I, Roesch F, Riedel WJ, Kenemans JL, Baas JMP. Method development studies for repeatedly measuring anxiolytic drug effects in healthy humans. J Psychopharmacol 2010; 24:657-66. [PMID: 19329545 DOI: 10.1177/0269881109103115] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Human experimental models for anxiety may serve as translational tools for translating preclinical psychopharmacological investigations into human studies. For the evaluation of drugs of which pharmacokinetics and pharmacodynamics are unidentified, repeating measurements after drug administration is necessary for characterising the time course of drug effects. In experiment 1, a threat-of-shock paradigm and adaptations of the Trier mental arithmetic test and the Stroop colour naming test were repeated four times within a day to evaluate whether anxiety responses to this test battery remain stable after repeated testing. This procedure was repeated on 4 days in a second experiment to evaluate suitability of the paradigm for a crossover design with multiple sessions. Results indicate no reductions or changes in fear potentiated startle, the main outcome measure for the threat paradigm, over test sessions or days. Skin conductance responses and subjective ratings under threat-of-shock showed significant fluctuations but also no systematic decline over time. Finally, the threat paradigm and Stroop test resulted in small increases in reported state anxiety while mental arithmetic produced larger effects that diminished after the first test day. It is concluded that especially the startle paradigm could be a useful new instrument for screening new anxiolytic drugs.
Collapse
Affiliation(s)
- F Klumpers
- Departments of Experimental Psychology and Psychopharmacology, Utrecht University, The Netherlands
| | | | | | | | | | | | | | | |
Collapse
|
9
|
Novgorodov AF, Korolev NA, Roesch F. A combined 148Gd/244Cm source for energy calibration of α-spectrometers. Appl Radiat Isot 2006; 64:540-2. [PMID: 16300954 DOI: 10.1016/j.apradiso.2005.08.012] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2005] [Revised: 06/01/2005] [Accepted: 08/23/2005] [Indexed: 11/17/2022]
Abstract
For high-resolution alpha-particle spectroscopy, detector calibration sources of highest performance are required concerning thickness and homogeneity. In addition, the alpha-emitting radionuclides must have adequate half-lives and alpha-emission energies. This paper describes a new type of alpha-emitting calibration source, represented by a mixture of 148Gd and 244Cm. This system covers an alpha-energy range from 3.18 MeV (148Gd) to 5.76 and 5.80 MeV (244Cm). The source has been prepared by electrolytic deposition and has good performance in terms of thickness and homogeneity.
Collapse
Affiliation(s)
- A F Novgorodov
- Joint Institute for Nuclear Research, RUS-141980 Dubna, Russian Federation
| | | | | |
Collapse
|
10
|
Aschoff P, Oeksuez M, Kemke B, Zhernosekov K, Jennewein M, Roesch F, Bihl H. Diagnostik Somatostatinrezeptor-exprimierender Tumoren: Ga-68-DOTATOC-PET/CT im Vergleich zur In-111-DTPAOC-SPECT/CT. ROFO-FORTSCHR RONTG 2005. [DOI: 10.1055/s-2005-867692] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
|
11
|
Aschoff P, Oeksuez M, Kemke M, Zhernosekov K, Jennewein M, Roesch F, Bihl H. PET/CT mit Ga-68-DOTATOC bei neuroendokrinen Tumoren: Ist ein zusätzliches Knochenszintigramm hilfreich? ROFO-FORTSCHR RONTG 2005. [DOI: 10.1055/s-2005-867691] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
|
12
|
Karow A, Ritzhaupt A, Roesch F, Novick D, Naber D, Dittmann RW. Association of clinical and non-clinical factors with subjective well-being – data of the SOHO study. Pharmacopsychiatry 2004. [DOI: 10.1055/s-2003-825396] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
|
13
|
Kreuzer M, Boffetta P, Whitley E, Ahrens W, Gaborieau V, Heinrich J, Jöckel KH, Kreienbrock L, Mallone S, Merletti F, Roesch F, Zambon P, Simonato L. Gender differences in lung cancer risk by smoking: a multicentre case-control study in Germany and Italy. Br J Cancer 2000; 82:227-33. [PMID: 10638994 PMCID: PMC2363175 DOI: 10.1054/bjoc.1999.0904] [Citation(s) in RCA: 93] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Several studies in the past have shown appreciably higher lung cancer risk estimates associated with smoking exposure among men than among women, while more recent studies in the USA report just the opposite. To evaluate this topic in a European population we conducted a case-control study of lung cancer in three German and three Italian centres. Personal interviews and standardized questionnaires were used to obtain detailed life-long smoking and occupational histories from 3723 male and 900 female cases and 4075 male and 1094 female controls. Lung cancer risk comparing ever-smokers with never-smokers was higher among men (odds ratios (OR) adjusted for age and centre = 16.1, 95% confidence interval (CI) 12.8-20.3) than among women (OR = 4.2, CI 3.5-5.1). Because the smoking habits of women were different from men, we conducted more detailed analyses using comparable levels of smoking exposure. After restriction to smokers and adjustment for other smoking variables, risk estimates did not differ appreciably between genders. The analysis of duration of smoking (0-19, 20-39, 40+ years) adjusted for cigarette consumption and time since quitting smoking revealed similar risk estimates in men (OR = 1.0, 3.3 [CI 2.6-4.2], 4.1 [CI 3.1-5.6]) and women (OR = 1.0, 2.7 [CI 1.7-4.1], 3.3 [CI 1.9-5.8]). The same was true of the analysis of average or cumulative smoking consumption, and also of analyses stratified by different histological types. We conclude that for comparable exposure to tobacco smoke, the risk of lung cancer is comparable in women and men.
Collapse
Affiliation(s)
- M Kreuzer
- GSF-Institute of Epidemiology, Neuherberg, Germany
| | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
14
|
Griffiths GL, Goldenberg DM, Roesch F, Hansen HJ. Radiolabeling of an anti-carcinoembryonic antigen antibody Fab' fragment (CEA-Scan) with the positron-emitting radionuclide Tc-94m. Clin Cancer Res 1999; 5:3001s-3003s. [PMID: 10541334] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/14/2023]
Abstract
The goal of this work was to test whether an antibody-based agent approved for use as a single-photon-emitting imaging agent when radiolabeled with technetium-99m could be labeled comparably with a positron-emitting nuclide, technetium-94m. "Instant kits" containing lyophilized NP-4 antibody Fab' fragment of an anticarcinoembryonic antigen IgG (CEA-Scan) from the same manufactured lot were reconstituted with either Tc-99m or Tc-94m, as solutions of sodium pertechnetate in isotonic saline solution. Radioanalyses of the labeled Fab' fragments by size-exclusion high-performance chromatography and TLC were carried out. Equivalent results were obtained for radioimmunoconjugates when each was analyzed with both methods. Facile incorporation of Tc-94m into tumor-targeting Fab' antibody fragments will enable investigation of such agents for tumor-specific imaging using positron emission tomography.
Collapse
Affiliation(s)
- G L Griffiths
- Immunomedics, Inc., Morris Plains, New Jersey 07950, USA
| | | | | | | |
Collapse
|
15
|
Salgado Sánchez J, Roesch F, Aiello V, Bravo JL, Salazar Ibargüen J. [Spontaneous rupture of the esophagogastric junction. Report of a case]. Rev Gastroenterol Mex 1980; 45:87-92. [PMID: 7190725] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
It is presented a case of spontaneous rupture of the union cardioesophageal consecutive on ingestion of bicarbonate in an old patient with strangulated hiatal hernia. It is analyzed the phisiopathological factors of such complication and the surgical treatment employed.
Collapse
|
16
|
García-Alonso H, Roesch F, Fierro FJ, Rojas Natera E. [Incidence and clinical anatomical study of colonic diverticulosis in Mexico]. Rev Invest Salud Publica 1968; 28:221-230. [PMID: 5746278] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
|
17
|
Roesch F, Letayf V. [Recurrent carcinoma of the gallbladder. Report of a case treated by extensive right hepatectomy]. Rev Invest Clin 1967; 19:285-90. [PMID: 5317611] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
|