1
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Complexes of Bifunctional DO3A-N-(α-amino)propinate Ligands with Mg(II), Ca(II), Cu(II), Zn(II), and Lanthanide(III) Ions: Thermodynamic Stability, Formation and Dissociation Kinetics, and Solution Dynamic NMR Studies. Molecules 2021; 26:molecules26164956. [PMID: 34443543 PMCID: PMC8398831 DOI: 10.3390/molecules26164956] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2021] [Revised: 07/13/2021] [Accepted: 07/15/2021] [Indexed: 02/07/2023] Open
Abstract
The thermodynamic, kinetic, and structural properties of Ln3+ complexes with the bifunctional DO3A-ACE4− ligand and its amide derivative DO3A-BACE4− (modelling the case where DO3A-ACE4− ligand binds to vector molecules) have been studied in order to confirm the usefulness of the corresponding Gd3+ complexes as relaxation labels of targeted MRI contrast agents. The stability constants of the Mg2+ and Ca2+ complexes of DO3A-ACE4− and DO3A-BACE4− complexes are lower than for DOTA4− and DO3A3−, while the Zn2+ and Cu2+ complexes have similar and higher stability than for DOTA4− and DO3A3− complexes. The stability constants of the Ln(DO3A-BACE)− complexes increase from Ce3+ to Gd3+ but remain practically constant for the late Ln3+ ions (represented by Yb3+). The stability constants of the Ln(DO3A-ACE)4− and Ln(DO3A-BACE)4− complexes are several orders of magnitude lower than those of the corresponding DOTA4− and DO3A3− complexes. The formation rate of Eu(DO3A-ACE)− is one order of magnitude slower than for Eu(DOTA)−, due to the presence of the protonated amine group, which destabilizes the protonated intermediate complex. This protonated group causes the Ln(DO3A-ACE)− complexes to dissociate several orders of magnitude faster than Ln(DOTA)− and its absence in the Ln(DO3A-BACE)− complexes results in inertness similar to Ln(DOTA)− (as judged by the rate constants of acid assisted dissociation). The 1H NMR spectra of the diamagnetic Y(DO3A-ACE)− and Y(DO3A-BACE)− reflect the slow dynamics at low temperatures of the intramolecular isomerization process between the SA pair of enantiomers, R-Λ(λλλλ) and S-Δ(δδδδ). The conformation of the Cα-substituted pendant arm is different in the two complexes, where the bulky substituent is further away from the macrocyclic ring in Y(DO3A-BACE)− than the amino group in Y(DO3A-ACE)− to minimize steric hindrance. The temperature dependence of the spectra reflects slower ring motions than pendant arms rearrangements in both complexes. Although losing some thermodynamic stability relative to Gd(DOTA)−, Gd(DO3A-BACE)− is still quite inert, indicating the usefulness of the bifunctional DO3A-ACE4− in the design of GBCAs and Ln3+-based tags for protein structural NMR analysis.
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2
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Smrčka F, Lubal P. Luminescent Sensor Based on Ln(III) Ternary Complexes for NAD(P)H Detection. Molecules 2020; 25:E4164. [PMID: 32932963 PMCID: PMC7571129 DOI: 10.3390/molecules25184164] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2020] [Revised: 09/05/2020] [Accepted: 09/07/2020] [Indexed: 11/16/2022] Open
Abstract
Ln(III) complexes of macrocyclic ligands are used in medicinal chemistry, for example as contrast agents in MRI or radiopharmaceutical compounds, and in diagnostics using fluorescence imaging. This paper is devoted to a spectroscopic study of Ln(III) ternary complexes consisting of macrocyclic heptadentate DO3A and bidentate 3-isoquinolinate (IQCA) ligands. IQCA serves as an efficient antenna ligand, leading to a higher quantum yield and Stokes shift (250-350 nm for Eu, Tb, Sm, Dy in VIS region, 550-650 nm for Yb, Nd in NIR region). The shielding-quenching effect of NAD(P)H on the luminescence of the Ln(III) ternary complexes was investigated in detail and this phenomenon was utilized for the analytical determination of this compound. This general approach was verified through an enzymatic reaction during which the course of ethanol transformation catalyzed by alcohol-dehydrogenase (ADH) was followed by luminescence spectroscopy. This method can be utilized for selective and sensitive determination of ethanol concentration and/or ADH enzyme activity. This new analytical method can also be used for other enzyme systems coupled with NAD(P)H/NAD(P)+ redox pairs.
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Affiliation(s)
| | - Přemysl Lubal
- Department of Chemistry, Faculty of Science, Masaryk University, Kamenice 5, 625 00 Brno, Czech Republic;
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3
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Lenora CU, Staples RJ, Allen MJ. Measurement of the Dissociation of Eu II-Containing Cryptates Using Murexide. Inorg Chem 2020; 59:86-93. [PMID: 30777754 DOI: 10.1021/acs.inorgchem.8b03605] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
The dissociation rates of five EuII-containing cryptates in water were measured using UV-visible spectroscopy and murexide at pH 6.5, 7, 7.5, 8, and 9. Murexide was used as a coordinating dye for EuII. The results for a known cryptate were within experimental error of the value obtained using other methods and enabled the measurement of other cryptates. This validation of the use of murexide to study the dissociation of EuII-containing cryptates enables its use with other complexes of EuII.
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Affiliation(s)
- Chamika U Lenora
- Department of Chemistry , Wayne State University , Detroit , Michigan 48202 , United States
| | - Richard J Staples
- Department of Chemistry , Michigan State University , East Lansing , Michigan 48824 , United States
| | - Matthew J Allen
- Department of Chemistry , Wayne State University , Detroit , Michigan 48202 , United States
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4
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Baranyai Z, Tircsó G, Rösch F. The Use of the Macrocyclic Chelator DOTA in Radiochemical Separations. Eur J Inorg Chem 2019. [DOI: 10.1002/ejic.201900706] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Zsolt Baranyai
- Bracco Research Centre Bracco Imaging spa Via Ribes 5 10010 Colleretto Giacosa (TO) Italy
| | - Gyula Tircsó
- Department of Physical Chemistry Faculty of Science and Technology University of Debrecen Egyetem tér 1 Debrecen 4032 Hungary
| | - Frank Rösch
- Institute of Nuclear Chemistry Johannes Gutenberg‐University of Mainz Fritz‐Strassmann‐Weg 2 55128 Mainz Germany
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5
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Determination of deuterium oxide content in water based on luminescence quenching. Talanta 2018; 184:364-368. [DOI: 10.1016/j.talanta.2018.03.016] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2017] [Revised: 03/05/2018] [Accepted: 03/07/2018] [Indexed: 11/19/2022]
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6
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Gündüz S, Vibhute S, Botár R, Kálmán FK, Tóth I, Tircsó G, Regueiro-Figueroa M, Esteban-Gómez D, Platas-Iglesias C, Angelovski G. Coordination Properties of GdDO3A-Based Model Compounds of Bioresponsive MRI Contrast Agents. Inorg Chem 2018; 57:5973-5986. [PMID: 29718660 DOI: 10.1021/acs.inorgchem.8b00473] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
We report a detailed characterization of the thermodynamic stability and dissociation kinetics of Gd3+ complexes with DO3A derivatives containing a (methylethylcarbamoylmethylamino)acetic acid (L1), (methylpropylcarbamoylmethylamino)acetic acid (L2), 2-dimethylamino- N-ethylacetamide (L3), or 2-dimethylamino- N-propylacetamide (L4) group attached to the fourth nitrogen atom of the macrocyclic unit. These ligands are model systems of Ca2+- and Zn2+-responsive contrast agents (CA) for application in magnetic resonance imaging (MRI). The results of the potentiometric studies ( I = 0.15 M NaCl) provide stability constants with log KGdL values in the range 13.9-14.8. The complex speciation in solution was found to be quite complicated due to the formation of protonated species at low pH, hydroxido complexes at high pH, and stable dinuclear complexes in the case of L1,2. At neutral pH significant fractions of the complexes are protonated at the amine group of the amide side chain (log KGdL×H = 7.2-8.1). These ligands form rather weak complexes with Mg2+ and Ca2+ but very stable complexes with Cu2+ (log KCuL = 20.4-22.3) and Zn2+ (log KZnL = 15.5-17.6). Structural studies using a combination of 1H NMR and luminescence spectroscopy show that the amide group of the ligand is coordinated to the metal ion at pH ∼8.5, while protonation of the amine group provokes the decoordination of the amide O atom and a concomitant increase in the hydration number and proton relaxivity. The dissociation of the complexes occurs mainly through a rather efficient proton-assisted pathway, which results in kinetic inertness comparable to that of nonmacrocyclic ligands such as DTPA rather than DOTA-like complexes.
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Affiliation(s)
- Serhat Gündüz
- MR Neuroimaging Agents , Max Planck Institute for Biological Cybernetics , D-72076 Tuebingen , Germany
| | - Sandip Vibhute
- MR Neuroimaging Agents , Max Planck Institute for Biological Cybernetics , D-72076 Tuebingen , Germany
| | - Richard Botár
- Department of Inorganic and Analytical Chemistry, Faculty of Science and Technology , University of Debrecen , Egyetem tér 1 , H-4032 Debrecen , Hungary
| | - Ferenc K Kálmán
- Department of Inorganic and Analytical Chemistry, Faculty of Science and Technology , University of Debrecen , Egyetem tér 1 , H-4032 Debrecen , Hungary
| | - Imre Tóth
- Department of Inorganic and Analytical Chemistry, Faculty of Science and Technology , University of Debrecen , Egyetem tér 1 , H-4032 Debrecen , Hungary
| | - Gyula Tircsó
- Department of Inorganic and Analytical Chemistry, Faculty of Science and Technology , University of Debrecen , Egyetem tér 1 , H-4032 Debrecen , Hungary
| | - Martín Regueiro-Figueroa
- Centro de Investigaciones Científicas Avanzadas (CICA) and Departamento de Química , Universidade da Coruña , Campus da Zapateira, Rúa da Fraga 10 , 15008 A Coruña , Spain
| | - David Esteban-Gómez
- Centro de Investigaciones Científicas Avanzadas (CICA) and Departamento de Química , Universidade da Coruña , Campus da Zapateira, Rúa da Fraga 10 , 15008 A Coruña , Spain
| | - Carlos Platas-Iglesias
- Centro de Investigaciones Científicas Avanzadas (CICA) and Departamento de Química , Universidade da Coruña , Campus da Zapateira, Rúa da Fraga 10 , 15008 A Coruña , Spain
| | - Goran Angelovski
- MR Neuroimaging Agents , Max Planck Institute for Biological Cybernetics , D-72076 Tuebingen , Germany
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7
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Reich D, Wurzer A, Wirtz M, Stiegler V, Spatz P, Pollmann J, Wester HJ, Notni J. Dendritic poly-chelator frameworks for multimeric bioconjugation. Chem Commun (Camb) 2018; 53:2586-2589. [PMID: 28191563 DOI: 10.1039/c6cc10169k] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Starting from multifunctional triazacyclononane-triphosphinate chelator cores, dendritic molecules with the ability to bind metal ions within their framework were synthesized. A cooperative interaction of the chelator cages resulted in a markedly increased affinity towards 67/68GaIII. A hexameric PSMA inhibitor conjugate with high affinity (IC50 = 1.2 nM) and favorable in vivo PET imaging properties demonstrated practical applicability. The novel scaffolds are useful for synthesis of structurally well-defined multimodal imaging probes or theranostics.
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Affiliation(s)
- Dominik Reich
- Lehrstuhl für Pharmazeutische Radiochemie, Technische Universität München, Walther-Meissner-Strasse 3, D-85748 Garching, Germany.
| | - Alexander Wurzer
- Lehrstuhl für Pharmazeutische Radiochemie, Technische Universität München, Walther-Meissner-Strasse 3, D-85748 Garching, Germany.
| | - Martina Wirtz
- Lehrstuhl für Pharmazeutische Radiochemie, Technische Universität München, Walther-Meissner-Strasse 3, D-85748 Garching, Germany.
| | - Veronika Stiegler
- Lehrstuhl für Pharmazeutische Radiochemie, Technische Universität München, Walther-Meissner-Strasse 3, D-85748 Garching, Germany.
| | - Philipp Spatz
- Lehrstuhl für Pharmazeutische Radiochemie, Technische Universität München, Walther-Meissner-Strasse 3, D-85748 Garching, Germany.
| | - Julia Pollmann
- Lehrstuhl für Pharmazeutische Radiochemie, Technische Universität München, Walther-Meissner-Strasse 3, D-85748 Garching, Germany.
| | - Hans-Jürgen Wester
- Lehrstuhl für Pharmazeutische Radiochemie, Technische Universität München, Walther-Meissner-Strasse 3, D-85748 Garching, Germany.
| | - Johannes Notni
- Lehrstuhl für Pharmazeutische Radiochemie, Technische Universität München, Walther-Meissner-Strasse 3, D-85748 Garching, Germany.
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8
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Ševčík R, Vaněk J, Michalicová R, Lubal P, Hermann P, Santos IC, Santos I, Campello MPC. Formation and decomplexation kinetics of copper(ii) complexes with cyclen derivatives having mixed carboxylate and phosphonate pendant arms. Dalton Trans 2018; 45:12723-33. [PMID: 27460053 DOI: 10.1039/c6dt01127f] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
The kinetic properties of Cu(ii) complexes of H4dota and its analogues with one (H5do3ap), two in the 1,7-position (trans-H6do2a2p), three (H7doa3p) and four (H8dotp) phosphonic acid pendant arms were investigated. The formation of a Cu(ii) complex with H4dota, trans-H6do2a2p and H8dotp at a slightly acidic pH is faster for the phosphonic acid derivatives than for H4dota, but with no simple dependence on the number of -CH2PO3H2 substituents (trans-H6do2a2p > H8dotp > H4dota; pH 4-6). Relative differences in the reactivity among the differently protonated species (HnL(x-)) of the same ligand are successively decreased with the more phosphonic acid groups in the ligand. The faster complexation is probably caused by the higher ability of phosphonates to bind the metal ion and/or to assist in the transfer of protons from the ring amine groups to the bulk water. The acid-assisted decomplexation kinetics of the complexes was followed in highly acidic solutions ([H(+)] = 0.01-5 M) and at different temperatures (15-70 °C) to determine the activation parameters of the reaction. The kinetic inertness of the Cu(ii) complexes follows the order: H4dota > H5do3ap > trans-H6do2a2p > H7doa3p > H8dotp. To obtain information on the influence of additional pendant arms, analogous data were obtained for trans-H2do2a. The ligand is less reactive than H4dota, but the kinetic inertness of its Cu(ii) complex is similar to that of the H4dota complex. As it was considered that the published thermodynamics data on the Cu(ii)-H8dotp system are probably incorrect, the system was re-investigated. It showed a very high stability for the [Cu(dotp)](6-) species and the easy formation of several Cu2L species in the presence of an excess of the metal ion. Also, the structure of the (H6doa3p)(-) anion in the solid state was determined. These experimental data demonstrate that the substitution of acetic acid pendant arms by methylphosphonic acid ones in H4dota-like ligands increases the rate of complexation but significantly decreases the kinetic inertness of the Cu(ii) complexes.
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Affiliation(s)
- R Ševčík
- Department of Chemistry, Faculty of Science, Masaryk University, Kotlářská 2, 611 37 Brno, Czech Republic.
| | - J Vaněk
- Department of Chemistry, Faculty of Science, Masaryk University, Kotlářská 2, 611 37 Brno, Czech Republic. and Central European Institute of Technology (CEITEC), Masaryk University, Kamenice 5, 625 00 Brno, Czech Republic
| | - R Michalicová
- Department of Chemistry, Faculty of Science, Masaryk University, Kotlářská 2, 611 37 Brno, Czech Republic.
| | - P Lubal
- Department of Chemistry, Faculty of Science, Masaryk University, Kotlářská 2, 611 37 Brno, Czech Republic. and Central European Institute of Technology (CEITEC), Masaryk University, Kamenice 5, 625 00 Brno, Czech Republic
| | - P Hermann
- Department of Inorganic Chemistry, Faculty of Science, Universita Karlova (Charles University), Hlavova 2030, 128 40 Prague 2, Czech Republic
| | - I C Santos
- Centro de Ciências e Tecnologias Nucleares, Instituto Superior Técnico, Universidade de Lisboa, Estrada Nacional 10, 2695-066 Bobadela LRS, Portugal.
| | - I Santos
- Centro de Ciências e Tecnologias Nucleares, Instituto Superior Técnico, Universidade de Lisboa, Estrada Nacional 10, 2695-066 Bobadela LRS, Portugal.
| | - M P C Campello
- Centro de Ciências e Tecnologias Nucleares, Instituto Superior Técnico, Universidade de Lisboa, Estrada Nacional 10, 2695-066 Bobadela LRS, Portugal.
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9
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Procházková S, Kubíček V, Kotek J, Vágner A, Notni J, Hermann P. Lanthanide(iii) complexes of monophosphinate/monophosphonate DOTA-analogues: effects of the substituents on the formation rate and radiolabelling yield. Dalton Trans 2018; 47:13006-13015. [DOI: 10.1039/c8dt02608d] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Highly acidic additional coordinating groups in the pendant arms increase the radiolabelling yield of DOTA-like complexes.
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Affiliation(s)
- Soňa Procházková
- Department of Inorganic Chemistry
- Faculty of Science
- Charles University
- Czech Republic
| | - Vojtěch Kubíček
- Department of Inorganic Chemistry
- Faculty of Science
- Charles University
- Czech Republic
| | - Jan Kotek
- Department of Inorganic Chemistry
- Faculty of Science
- Charles University
- Czech Republic
| | - Adrienn Vágner
- Department of Inorganic and Analytical Chemistry
- University of Debrecen
- Debrecen
- Hungary
| | - Johannes Notni
- Lehrstuhl für Pharmazeutische Radiochemie
- Technische Universität München
- D-85748 Garching
- Germany
| | - Petr Hermann
- Department of Inorganic Chemistry
- Faculty of Science
- Charles University
- Czech Republic
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10
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Smrčka F, Lubal P. The time-resolved fluorescence study of kinetics and thermodynamics of Eu( iii) and Tb( iii) complexes with the DO2A macrocyclic ligand. NEW J CHEM 2018. [DOI: 10.1039/c8nj00255j] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
The thermodynamics and kinetics of formation/dissociation of Eu(iii) and Tb(iii) with the H2DO2A macrocyclic ligand were studied by time-resolved fluorescence spectroscopy.
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Affiliation(s)
- Filip Smrčka
- Department of Chemistry
- Faculty of Science
- Masaryk University
- 61137 Brno
- Czech Republic
| | - Přemysl Lubal
- Department of Chemistry
- Faculty of Science
- Masaryk University
- 61137 Brno
- Czech Republic
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11
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The urea biosensor based on luminescence of Eu(III) ternary complex of DO3A ligand. MONATSHEFTE FUR CHEMIE 2017. [DOI: 10.1007/s00706-017-2043-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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12
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Procházková S, Kubíček V, Böhmová Z, Holá K, Kotek J, Hermann P. DOTA analogues with a phosphinate-iminodiacetate pendant arm: modification of the complex formation rate with a strongly chelating pendant. Dalton Trans 2017; 46:10484-10497. [DOI: 10.1039/c7dt01797a] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
The formation of highly stable out-of-cage complexes slows down the transfer of the metal ion into the cavity of the macrocyclic ligand.
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Affiliation(s)
- Soňa Procházková
- Department of Inorganic Chemistry
- Faculty of Science
- Charles University
- 128 40 Prague 2
- Czech Republic
| | - Vojtěch Kubíček
- Department of Inorganic Chemistry
- Faculty of Science
- Charles University
- 128 40 Prague 2
- Czech Republic
| | - Zuzana Böhmová
- Department of Inorganic Chemistry
- Faculty of Science
- Charles University
- 128 40 Prague 2
- Czech Republic
| | - Kateřina Holá
- Department of Inorganic Chemistry
- Faculty of Science
- Charles University
- 128 40 Prague 2
- Czech Republic
| | - Jan Kotek
- Department of Inorganic Chemistry
- Faculty of Science
- Charles University
- 128 40 Prague 2
- Czech Republic
| | - Petr Hermann
- Department of Inorganic Chemistry
- Faculty of Science
- Charles University
- 128 40 Prague 2
- Czech Republic
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13
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Procházková S, Hraníček J, Kubíček V, Hermann P. Formation kinetics of europium(III) complexes of DOTA and its bis(phosphonate) bearing analogs. Polyhedron 2016. [DOI: 10.1016/j.poly.2016.03.039] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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14
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Vaněk J, Smrčka F, Lubal P, Třísková I, Trnková L. Dual carbonate sensor based on Eu(III) complex of DO3A ligand. MONATSHEFTE FUR CHEMIE 2016. [DOI: 10.1007/s00706-016-1722-x] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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15
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Kerdjoudj R, Pniok M, Alliot C, Kubíček V, Havlíčková J, Rösch F, Hermann P, Huclier-Markai S. Scandium(iii) complexes of monophosphorus acid DOTA analogues: a thermodynamic and radiolabelling study with 44Sc from cyclotron and from a 44Ti/44Sc generator. Dalton Trans 2016; 45:1398-409. [DOI: 10.1039/c5dt04084a] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The influence of the phosphonic/phosphinic acid pendant arm in DOTA derivatives on properties of their Sc3+ complexes and efficiency of their 44Sc labelling were investigated.
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Affiliation(s)
- R. Kerdjoudj
- Laboratoire Subatech
- UMR 6457
- Ecole des Mines de Nantes/CNRS/IN2P3/Université de Nantes
- F-44307 Nantes Cedex 3
- France
| | - M. Pniok
- Department of Inorganic Chemistry
- Faculty of Science
- Universita Karlova
- CZ-12843 Prague 2
- Czech Republic
| | - C. Alliot
- ARRONAX GIP
- F-44817 Nantes Cedex
- France
- CRCNA
- Inserm/CNRS/Université de Nantes
| | - V. Kubíček
- Department of Inorganic Chemistry
- Faculty of Science
- Universita Karlova
- CZ-12843 Prague 2
- Czech Republic
| | - J. Havlíčková
- Department of Inorganic Chemistry
- Faculty of Science
- Universita Karlova
- CZ-12843 Prague 2
- Czech Republic
| | - F. Rösch
- Institute of Nuclear Chemistry
- Johannes-Gutenberg-University of Mainz
- D-55128 Mainz
- Germany
| | - P. Hermann
- Department of Inorganic Chemistry
- Faculty of Science
- Universita Karlova
- CZ-12843 Prague 2
- Czech Republic
| | - S. Huclier-Markai
- Laboratoire Subatech
- UMR 6457
- Ecole des Mines de Nantes/CNRS/IN2P3/Université de Nantes
- F-44307 Nantes Cedex 3
- France
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16
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Dissociation kinetics study of copper(II) complexes of DO3A, DOTA and its monosubstituted derivatives. Polyhedron 2013. [DOI: 10.1016/j.poly.2013.05.042] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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17
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van der Meer A, Breeman WAP, Wolterbeek B. Reversed phase free ion selective radiotracer extraction (RP-FISRE): a new tool to assess the dynamic stabilities of metal (-organic) complexes, for complex half-lives spanning six orders of magnitude. Appl Radiat Isot 2013; 82:28-35. [PMID: 23948308 DOI: 10.1016/j.apradiso.2013.06.021] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2012] [Revised: 05/20/2013] [Accepted: 06/25/2013] [Indexed: 11/28/2022]
Abstract
This paper introduces reversed phase free ion selective radiotracer extraction (RP-FISRE) as a new tool to assess the stability of metal complexes, as illustrated by the assessment of the stability of [(177)Lu]Lu-DOTA-octreotate. To this end, the TUDelft-developed FISRE, where the released metal is column-retained and the complex eluted, was changed into RP-FISRE, where the complex is column-retained and the released metal is eluted. This change in the approach allows for studies to be performed with high stability complexes. This paper presents RP-FISRE, the strength of the radiotracer approach, and the first-ever kd data on the release of (177)Lu from [(177)Lu]Lu-DOTA-octreotate.
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Affiliation(s)
- Astrid van der Meer
- Delft University of Technology (TUDelft), Mekelweg 15, 2629 JB Delft, The Netherlands.
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18
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Šimeček J, Hermann P, Havlíčková J, Herdtweck E, Kapp TG, Engelbogen N, Kessler H, Wester HJ, Notni J. A cyclen-based tetraphosphinate chelator for the preparation of radiolabeled tetrameric bioconjugates. Chemistry 2013; 19:7748-57. [PMID: 23613345 DOI: 10.1002/chem.201300338] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2013] [Indexed: 01/17/2023]
Abstract
The cyclen-based tetraphosphinate chelator 1,4,7,10-tetraazacyclododecane-1,4,7,10-tetrakis[methylene(2-carboxyethyl)phosphinic acid] (DOTPI) comprises four additional carboxylic acid moieties for bioconjugation. The thermodynamic stability constants (logK(ML)) of metal complexes, as determined by potentiometry, were 23.11 for Cu(II), 20.0 for Lu(III), 19.6 for Y(III), and 21.0 for Gd(III). DOTPI was functionalized with four cyclo(Arg-Gly-Asp-D-Phe-Lys) (RGD) peptides through polyethylene glycol (PEG4) linkers. The resulting tetrameric conjugate DOTPI(RGD)4 was radiolabeled with (177)Lu and (64)Cu and showed improved labeling efficiency compared with 1,4,7,10-tetraazacyclododecane-1,4,7,10-tetraacetic acid (DOTA). The labeled compounds were fully stable in transchelation challenges against trisodium diethylenetriaminepentaacetate (DTPA) and disodium ethylenediaminetetraacetic acid (ETDA), in phosphate buffered saline (PBS), and human plasma. Integrin αvβ3 affinities of the non-radioactive Lu(III) and Cu(II) complexes of DOTPI(RGD)4 were 18 times higher (both IC50 about 70 picomolar) than that of the c(RGDfK) peptide (IC50 = 1.3 nanomolar). Facile access to tetrameric conjugates and the possibility of radiolabeling with therapeutic and diagnostic radionuclides render DOTPI suitable for application in peptide receptor radionuclide imaging (PRRI) and therapy (PRRT).
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Affiliation(s)
- Jakub Šimeček
- Lehrstuhl für Pharmazeutische Radiochemie, Technische Universität München, Walther-Meissner Strasse 3, 85748 Garching, Germany
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Baranyai Z, Pálinkás Z, Uggeri F, Maiocchi A, Aime S, Brücher E. Dissociation Kinetics of Open-Chain and Macrocyclic Gadolinium(III)-Aminopolycarboxylate Complexes Related to Magnetic Resonance Imaging: Catalytic Effect of Endogenous Ligands. Chemistry 2012; 18:16426-35. [DOI: 10.1002/chem.201202930] [Citation(s) in RCA: 83] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2012] [Indexed: 11/08/2022]
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20
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Pekarkova P, Lubal P, Taborsky P. Comment on "Hypersensitive luminiscence of Eu3+ in dimethyl sulfoxide as a new probing for water measurement". Anal Chem 2012; 84:8427-8; discussion 8429-30. [PMID: 22958205 DOI: 10.1021/ac301934d] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Pavla Pekarkova
- Department of Chemistry, Faculty of Science, Masaryk University
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Luminescent sensor for carbonate ion based on lanthanide(III) complexes of 1,4,7,10-tetraazacyclododecane-1,4,7-triacetic acid (DO3A). J Fluoresc 2012; 23:57-69. [PMID: 22872436 DOI: 10.1007/s10895-012-1116-3] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2012] [Accepted: 07/30/2012] [Indexed: 12/17/2022]
Abstract
Lanthanide(III) complexes of 1,4,7,10-tetraazacyclododecane-1,4,7-triacetic acid (H(3)DO3A) are suggested as sensors for sensitive luminescence-based determination of a carbonate anion. Thermodynamic study of association of [Eu(H(2)O)(2)(DO3A)] with bidentate anionic ligands using luminescence spectroscopy reveals an affinity order CO(3)(2-) > oxalate(2-) > picolinate(-) > phthalate(2-) ≈ citrate(3-); presumably as a consequence of an increasing chelate ring size. The ternary [Eu(DO3A)(picolinate)](-) and [Tb(DO3A)(picolinate)](-) complexes show improved photophysical properties due to the antenna effect of the picolinate anion. High quenching effect of carbonate anion and, to a lesser extent also oxalate, enables construction of a linear calibration plot utilizing optimized experimental conditions (e.g. c(LnL) = 0.1 mM, c(picolinate) = 2-5 mM, pH = 7.4, λ(exc) = 286 nm, etc.) for carbonate determination in solution. Both sensors show a comparable sensitivity and the detection limit of about 0.4 mM. In order to improve the photophysical properties of Ln(III) sensor by shift of excitation wavelength about 40 nm to VIS range, the isoquinoline-3-carboxylic acid (IQCA) as antenna ligand was employed instead of picolinic acid. The analysis of commercial samples of European mineral waters was carried out and they were compared to the results obtained by capillary isotachophoresis to confirm there is no inherent (systematic) error to the present analysis. The Ln(III) sensor with IQCA is recommended since it has a better robustness than that with picolinate. The present analytical method is simple and rapid, and it is useful for sensitive determination of bicarbonate/carbonate concentration in water samples under aerobic conditions.
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Lima LMP, Delgado R, Hermann P, Ševčík R, Lubal P, Carvalho HF, Martins AF, Tóth É, Geraldes CFGC. Tris(phosphonomethyl)cyclen Derivatives: Thermodynamic Stability, Kinetics, Solution Structure, and Relaxivity of Ln3+ Complexes. Eur J Inorg Chem 2012. [DOI: 10.1002/ejic.201101335] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Lima LMP, Esteves CV, Delgado R, Hermann P, Kotek J, Ševčíková R, Lubal P. Tris(phosphonomethyl) Cyclen Derivatives: Synthesis, Acid-Base Properties and Complexation Studies with Cu2+ and Zn2+ Ions. Eur J Inorg Chem 2012. [DOI: 10.1002/ejic.201101334] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Andres J, Chauvin AS. 6-Phosphoryl Picolinic Acids as Europium and Terbium Sensitizers. Inorg Chem 2011; 50:10082-90. [DOI: 10.1021/ic200983y] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Julien Andres
- École Polytechnique Fédérale de Lausanne, ISIC, BCH 1405, CH-1015 Lausanne, Switzerland
| | - Anne-Sophie Chauvin
- École Polytechnique Fédérale de Lausanne, ISIC, BCH 1405, CH-1015 Lausanne, Switzerland
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Lima LM, Delgado R, Marques F, Gano L, Santos I. TETA analogue containing one methylenephosphonate pendant arm: Lanthanide complexes and biological evaluation of its 153Sm and 166Ho complexes. Eur J Med Chem 2010; 45:5621-7. [DOI: 10.1016/j.ejmech.2010.09.013] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2010] [Revised: 06/25/2010] [Accepted: 09/08/2010] [Indexed: 10/19/2022]
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Campello MPC, Lacerda S, Santos IC, Pereira GA, Geraldes CFGC, Kotek J, Hermann P, Vanek J, Lubal P, Kubícek V, Tóth E, Santos I. Lanthanide(III) complexes of 4,10-bis(phosphonomethyl)-1,4,7,10-tetraazacyclododecane-1,7-diacetic acid (trans-H6do2a2p) in solution and in the solid state: structural studies along the series. Chemistry 2010; 16:8446-65. [PMID: 20540046 DOI: 10.1002/chem.201000320] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Complexes of 4,10-bis(phosphonomethyl)-1,4,7,10-tetraazacyclododecane-1,7-diacetic acid (trans-H(6)do2a2p, H(6)L) with transition metal and lanthanide(III) ions were investigated. The stability constant values of the divalent and trivalent metal-ion complexes are between the corresponding values of H(4)dota and H(8)dotp complexes, as a consequence of the ligand basicity. The solid-state structures of the ligand and of nine lanthanide(III) complexes were determined by X-ray diffraction. All the complexes are present as twisted-square-antiprismatic isomers and their structures can be divided into two series. The first one involves nona-coordinated complexes of the large lanthanide(III) ions (Ce, Nd, Sm) with a coordinated water molecule. In the series of Sm, Eu, Tb, Dy, Er, Yb, the complexes are octa-coordinated only by the ligand donor atoms and their coordination cages are more irregular. The formation kinetics and the acid-assisted dissociation of several Ln(III)-H(6)L complexes were investigated at different temperatures and compared with analogous data for complexes of other dota-like ligands. The [Ce(L)(H(2)O)](3-) complex is the most kinetically inert among complexes of the investigated lanthanide(III) ions (Ce, Eu, Gd, Yb). Among mixed phosphonate-acetate dota analogues, kinetic inertness of the cerium(III) complexes is increased with a higher number of phosphonate arms in the ligand, whereas the opposite is true for europium(III) complexes. According to the (1)H NMR spectroscopic pseudo-contact shifts for the Ce-Eu and Tb-Yb series, the solution structures of the complexes reflect the structures of the [Ce(HL)(H(2)O)](2-) and [Yb(HL)](2-) anions, respectively, found in the solid state. However, these solution NMR spectroscopic studies showed that there is no unambiguous relation between (31)P/(1)H lanthanide-induced shift (LIS) values and coordination of water in the complexes; the values rather express a relative position of the central ions between the N(4) and O(4) planes.
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Affiliation(s)
- M Paula C Campello
- Departamento de Química, Instituto Tecnológico e Nuclear, Estrada Nacional 10, 2686-953 Sacavém, Portugal
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Tircsó G, Benyó ET, Suh EH, Jurek P, Kiefer GE, Sherry AD, Kovács Z. (S)-5-(p-nitrobenzyl)-PCTA, a promising bifunctional ligand with advantageous metal ion complexation kinetics. Bioconjug Chem 2010; 20:565-75. [PMID: 19220012 DOI: 10.1021/bc8004914] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A bifunctional version of PCTA (3,6,9,15-tetraazabicyclo[9.3.1]pentadeca-1(15),11,13-triene-3,6,9,-triacetic acid) that exhibits fast complexation kinetics with the trivalent lanthanide(III) ions was synthesized in reasonable yields starting from N,N',N''-tristosyl-(S)-2-(p-nitrobenzyl)-diethylenetriamine. pH-potentiometric studies showed that the basicities of p-nitrobenzyl-PCTA and the parent ligand PCTA were similar. The stability of M(NO(2)-Bn-PCTA) (M = Mg(2+), Ca(2+), Cu(2+), Zn(2+)) complexes was similar to that of the corresponding PCTA complexes, while the stability of Ln(3+) complexes of the bifunctional ligand is somewhat lower than that of PCTA chelates. The rate of complex formation of Ln(NO(2)-Bn-PCTA) complexes was found to be quite similar to that of PCTA, a ligand known to exhibit the fastest formation rates among all lanthanide macrocyclic ligand complexes studied to date. The acid-catalyzed decomplexation kinetic studies of the selected Ln(NO(2)-Bn-PCTA) complexes showed that the kinetic inertness of the complexes was comparable to that of Ln(DOTA) chelates making the bifunctional ligand NO(2)-Bn-PCTA suitable for labeling biological vectors with radioisotopes for nuclear medicine applications.
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Affiliation(s)
- Gyula Tircsó
- Department of Chemistry, University of Texas at Dallas, Richardson, TX 75080, USA
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Lacerda S, Marques F, Campello P, Gano L, Kubíček V, Hermann P, Santos I. Chemical, radiochemical and biological studies of Sm and Ho complexes of H4dota analogues containing one methylphosphonic/phosphinic acid pendant arm. J Labelled Comp Radiopharm 2009. [DOI: 10.1002/jlcr.1697] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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29
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Campello M, Balbina M, Santos I, Lubal P, SÌevcÌÃk R, SÌevcÌÃková R. Lanthanide(III) Complexes of 2-[4,7,10-Tris(phosphonomethyl)-1,4,7,10-tetraazacyclododecan-1-yl]acetic Acid (H7DOA3P): Multinuclear-NMR and Kinetic Studies. Helv Chim Acta 2009. [DOI: 10.1002/hlca.200900176] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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30
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Mamedov I, Táborský P, Lubal P, Laurent S, Vander Elst L, Mayer HA, Logothetis NK, Angelovski G. Relaxometric, Thermodynamic and Kinetic Studies of Lanthanide(III) Complexes of DO3A‐Based Propylphosphonates. Eur J Inorg Chem 2009. [DOI: 10.1002/ejic.200900149] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Ilgar Mamedov
- Physiology of Cognitive Processes, Max Planck Institute for Biological Cybernetics, Spemannstr. 38, 72076 Tübingen, Germany, Fax: +49‐7071‐601‐919
| | - Petr Táborský
- Department of Chemistry, Masaryk University Kotlářská 2, 611 37 Brno, Czech Republic, Fax: +420‐549‐49‐2494
| | - Přemysl Lubal
- Department of Chemistry, Masaryk University Kotlářská 2, 611 37 Brno, Czech Republic, Fax: +420‐549‐49‐2494
| | - Sophie Laurent
- Department of General, Organic and Biomedical Chemistry, NMR and Molecular Imaging Laboratory, University of Mons, Mons, Belgium
| | - Luce Vander Elst
- Department of General, Organic and Biomedical Chemistry, NMR and Molecular Imaging Laboratory, University of Mons, Mons, Belgium
| | - Hermann A. Mayer
- Department for Inorganic Chemistry, Eberhard‐Karls‐Universität Tübingen, Tübingen, Germany
| | - Nikos K. Logothetis
- Physiology of Cognitive Processes, Max Planck Institute for Biological Cybernetics, Spemannstr. 38, 72076 Tübingen, Germany, Fax: +49‐7071‐601‐919
- Imaging Science and Biomedical Engineering, University of Manchester, Manchester, United Kingdom
| | - Goran Angelovski
- Physiology of Cognitive Processes, Max Planck Institute for Biological Cybernetics, Spemannstr. 38, 72076 Tübingen, Germany, Fax: +49‐7071‐601‐919
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Pierrard JC, Rimbault J, Aplincourt M, Le Greneur S, Port M. New synthesis of a high molecular weight ligand derived from dota; thermodynamic stability of the MRI contrast agent formed with gadolinium. CONTRAST MEDIA & MOLECULAR IMAGING 2008; 3:243-52. [DOI: 10.1002/cmmi.258] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Hermann P, Kotek J, Kubícek V, Lukes I. Gadolinium(III) complexes as MRI contrast agents: ligand design and properties of the complexes. Dalton Trans 2008:3027-47. [PMID: 18521444 DOI: 10.1039/b719704g] [Citation(s) in RCA: 381] [Impact Index Per Article: 23.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Magnetic resonance imaging is a commonly used diagnostic method in medicinal practice as well as in biological and preclinical research. Contrast agents (CAs), which are often applied are mostly based on Gd(III) complexes. In this paper, the ligand types and structures of their complexes on one side and a set of the physico-chemical parameters governing properties of the CAs on the other side are discussed. The solid-state structures of lanthanide(III) complexes of open-chain and macrocyclic ligands and their structural features are compared. Examples of tuning of ligand structures to alter the relaxometric properties of gadolinium(III) complexes as a number of coordinated water molecules, their residence time (exchange rate) or reorientation time of the complexes are given. Influence of the structural changes of the ligands on thermodynamic stability and kinetic inertness/lability of their lanthanide(III) complexes is discussed.
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Affiliation(s)
- Petr Hermann
- Department of Inorganic Chemistry, Faculty of Science, Universita Karlova (Charles University), Hlavova 2030, 128 40, Prague 2, Czech Republic
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Försterová M, Jandurová Z, Marques F, Gano L, Lubal P, Vanek J, Hermann P, Santos I. Chemical and biological evaluation of 153Sm and 166Ho complexes of 1,4,7,10-tetraazacyclododecane-1,4,7,10-tetrakis(methylphosphonic acid monoethylester) (H4 dotp OEt). J Inorg Biochem 2008; 102:1531-40. [PMID: 18374985 DOI: 10.1016/j.jinorgbio.2008.02.002] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2007] [Revised: 01/19/2008] [Accepted: 02/04/2008] [Indexed: 11/28/2022]
Abstract
The novel methylphosphonic acid monoethylester (H(4)dotp(OEt)) has been synthesized and characterized and their complexes with Sm(III) and Ho(III) ions were studied. Dissociation constants of the ligand are lower than those of H(4)dota. The stability constants of the Ln(III)-H(4)dotp(OEt) complexes are surprisingly much lower that those of H(4)dota (H(4)dota=1,4,7,10-tetraazacyclododecane-1,4,7,10-tetraacetic acid) probably due to a lower coordination ability of the phosphonate monoester groups. Acid-assisted decomplexation studies have shown that both complexes are less kinetically inert than the H(4)dota complexes, but still much more inert than complexes of open-chain ligands. Nevertheless, the synthesis of (153)Sm and (166)Ho complexes with this ligand led to stable complexes both in vitro and in vivo. A very low binding of these complexes to hydroxyapatite (HA) and calcified tissues was observed confirming the assumption that a fully ionized phosphonate group(s) is necessary for a strong bone affinity. Both complexes show similar behaviour in vivo and, in general, follow the biodistribution trend of the H(4)dota complexes with the same metals.
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Affiliation(s)
- Michaela Försterová
- Department of Inorganic Chemistry, Faculty of Science, Universita Karlova (Charles University), Hlavova 2030, 128 40 Prague 2, Czech Republic
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