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Ferreira-Filho VC, Morais B, Vieira BJC, Waerenborgh JC, Carmezim MJ, Tóth CN, Même S, Lacerda S, Jaque D, Sousa CT, Campello MPC, Pereira LCJ. Influence of SPION Surface Coating on Magnetic Properties and Theranostic Profile. Molecules 2024; 29:1824. [PMID: 38675647 PMCID: PMC11052394 DOI: 10.3390/molecules29081824] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2024] [Revised: 04/11/2024] [Accepted: 04/15/2024] [Indexed: 04/28/2024] Open
Abstract
This study aimed to develop multifunctional nanoplatforms for both cancer imaging and therapy using superparamagnetic iron oxide nanoparticles (SPIONs). Two distinct synthetic methods, reduction-precipitation (MR/P) and co-precipitation at controlled pH (MpH), were explored, including the assessment of the coating's influence, namely dextran and gold, on their magnetic properties. These SPIONs were further functionalized with gadolinium to act as dual T1/T2 contrast agents for magnetic resonance imaging (MRI). Parameters such as size, stability, morphology, and magnetic behavior were evaluated by a detailed characterization analysis. To assess their efficacy in imaging and therapy, relaxivity and hyperthermia experiments were performed, respectively. The results revealed that both synthetic methods lead to SPIONs with similar average size, 9 nm. Mössbauer spectroscopy indicated that samples obtained from MR/P consist of approximately 11-13% of Fe present in magnetite, while samples obtained from MpH have higher contents of 33-45%. Despite coating and functionalization, all samples exhibited superparamagnetic behavior at room temperature. Hyperthermia experiments showed increased SAR values with higher magnetic field intensity and frequency. Moreover, the relaxivity studies suggested potential dual T1/T2 contrast agent capabilities for the coated SPpH-Dx-Au-Gd sample, thus demonstrating its potential in cancer diagnosis.
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Affiliation(s)
- Vital Cruvinel Ferreira-Filho
- Centro de Ciências e Tecnologias Nucleares, Departamento Engenharia Ciências Nucleares, Instituto Superior Técnico, Universidade de Lisboa, EN10, km 139,7, 2695-066 Bobadela, Portugal; (V.C.F.-F.); (B.M.); (B.J.C.V.); (J.C.W.)
| | - Beatriz Morais
- Centro de Ciências e Tecnologias Nucleares, Departamento Engenharia Ciências Nucleares, Instituto Superior Técnico, Universidade de Lisboa, EN10, km 139,7, 2695-066 Bobadela, Portugal; (V.C.F.-F.); (B.M.); (B.J.C.V.); (J.C.W.)
| | - Bruno J. C. Vieira
- Centro de Ciências e Tecnologias Nucleares, Departamento Engenharia Ciências Nucleares, Instituto Superior Técnico, Universidade de Lisboa, EN10, km 139,7, 2695-066 Bobadela, Portugal; (V.C.F.-F.); (B.M.); (B.J.C.V.); (J.C.W.)
| | - João Carlos Waerenborgh
- Centro de Ciências e Tecnologias Nucleares, Departamento Engenharia Ciências Nucleares, Instituto Superior Técnico, Universidade de Lisboa, EN10, km 139,7, 2695-066 Bobadela, Portugal; (V.C.F.-F.); (B.M.); (B.J.C.V.); (J.C.W.)
| | - Maria João Carmezim
- Centro de Química Estrutural-CQE, DEQ, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisbon, Portugal;
- ESTSetúbal, CDP2T, Instituto Politécnico de Setúbal, 2910-761 Setúbal, Portugal
| | - Csilla Noémi Tóth
- Centre de Biophysique Moléculaire, CNRS, UPR 4301, Université d’Orléans, Rue Charles Sadron, 45071 Orléans, CEDEX 2, France; (C.N.T.); (S.M.); (S.L.)
| | - Sandra Même
- Centre de Biophysique Moléculaire, CNRS, UPR 4301, Université d’Orléans, Rue Charles Sadron, 45071 Orléans, CEDEX 2, France; (C.N.T.); (S.M.); (S.L.)
| | - Sara Lacerda
- Centre de Biophysique Moléculaire, CNRS, UPR 4301, Université d’Orléans, Rue Charles Sadron, 45071 Orléans, CEDEX 2, France; (C.N.T.); (S.M.); (S.L.)
| | - Daniel Jaque
- Departamento de Física de Materiales, Universidad Autonoma de Madrid, Avda. Francisco Tomás y Valiente 7, 28049 Madrid, Spain;
| | - Célia T. Sousa
- Departamento de Física Aplicada, Universidad Autonoma de Madrid, Avda. Francisco Tomás y Valiente 7, 28049 Madrid, Spain;
| | - Maria Paula Cabral Campello
- Centro de Ciências e Tecnologias Nucleares, Departamento Engenharia Ciências Nucleares, Instituto Superior Técnico, Universidade de Lisboa, EN10, km 139,7, 2695-066 Bobadela, Portugal; (V.C.F.-F.); (B.M.); (B.J.C.V.); (J.C.W.)
| | - Laura C. J. Pereira
- Centro de Ciências e Tecnologias Nucleares, Departamento Engenharia Ciências Nucleares, Instituto Superior Técnico, Universidade de Lisboa, EN10, km 139,7, 2695-066 Bobadela, Portugal; (V.C.F.-F.); (B.M.); (B.J.C.V.); (J.C.W.)
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Moreau C, Lukačević T, Pallier A, Sobilo J, Aci-Sèche S, Garnier N, Même S, Tóth É, Lacerda S. Peptide-Conjugated MRI Probe Targeted to Netrin-1, a Novel Metastatic Breast Cancer Biomarker. Bioconjug Chem 2024; 35:265-275. [PMID: 38340041 DOI: 10.1021/acs.bioconjchem.3c00558] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/12/2024]
Abstract
Despite significant progress in cancer imaging and treatment over the years, early diagnosis and metastasis detection remain a challenge. Molecular magnetic resonance imaging (MRI), with its high resolution, can be well adapted to fulfill this need, requiring the design of contrast agents which target specific tumor biomarkers. Netrin-1 is an extracellular protein overexpressed in metastatic breast cancer and implicated in tumor progression and the appearance of metastasis. This study focuses on the design and preclinical evaluation of a novel Netrin-1-specific peptide-based MRI probe, GdDOTA-KKTHDAVR (Gd-K), to visualize metastatic breast cancer. The targeting peptide sequence was identified based on the X-ray structure of the complex between Netrin-1 and its transmembrane receptor DCC. Molecular docking simulations support the probe design. In vitro studies evidenced submicromolar affinity of Gd-K for Netrin-1 (KD = 0.29 μM) and good MRI efficacy (proton relaxivity, r1 = 4.75 mM-1 s-1 at 9.4 T, 37 °C). In vivo MRI studies in a murine model of triple-negative metastatic breast cancer revealed successful tumor visualization at earlier stages of tumor development (smaller tumor volume). Excellent signal enhancement, 120% at 2 min and 70% up to 35 min post injection, was achieved (0.2 mmol/kg injected dose), representing a reasonable imaging time window and a superior contrast enhancement in the tumor as compared to Dotarem injection.
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Affiliation(s)
- Clémentine Moreau
- Centre de Biophysique Moléculaire, CNRS UPR4301, Université d'Orléans, Rue Charles Sadron, 45071 Orléans Cedex 2, France
| | - Tea Lukačević
- Centre de Biophysique Moléculaire, CNRS UPR4301, Université d'Orléans, Rue Charles Sadron, 45071 Orléans Cedex 2, France
| | - Agnès Pallier
- Centre de Biophysique Moléculaire, CNRS UPR4301, Université d'Orléans, Rue Charles Sadron, 45071 Orléans Cedex 2, France
| | - Julien Sobilo
- TAAM-In vivo Imaging Centre, MO2VING, CNRS UAR44, F-45071 Orléans 2, France
| | - Samia Aci-Sèche
- Institut de Chimie Organique et Analytique, UMR CNRS-Université d'Orléans 7311, Université d'Orléans BP 6759, 45067 Orléans Cedex 2, France
| | - Norbert Garnier
- Centre de Biophysique Moléculaire, CNRS UPR4301, Université d'Orléans, Rue Charles Sadron, 45071 Orléans Cedex 2, France
| | - Sandra Même
- Centre de Biophysique Moléculaire, CNRS UPR4301, Université d'Orléans, Rue Charles Sadron, 45071 Orléans Cedex 2, France
| | - Éva Tóth
- Centre de Biophysique Moléculaire, CNRS UPR4301, Université d'Orléans, Rue Charles Sadron, 45071 Orléans Cedex 2, France
| | - Sara Lacerda
- Centre de Biophysique Moléculaire, CNRS UPR4301, Université d'Orléans, Rue Charles Sadron, 45071 Orléans Cedex 2, France
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Léost F, Barbet J, Beyler M, Chérel M, Delpon G, Garcion E, Lacerda S, Lepareur N, Rbah-Vidal L, Vaugier L, Visvikis D. ["New Modalities in Cancer Imaging and Therapy" XVth edition of the workshop organized by the network "Tumor Targeting, Imaging, Radiotherapies" of the Cancéropôle Grand-Ouest, 5-8 October 2022, France]. Bull Cancer 2023; 110:1322-1331. [PMID: 37880044 DOI: 10.1016/j.bulcan.2023.08.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2023] [Revised: 05/16/2023] [Accepted: 08/13/2023] [Indexed: 10/27/2023]
Abstract
The fifteenth edition of the international workshop organized by the "Tumour Targeting and Radiotherapies network" of the Cancéropôle Grand-Ouest focused on the latest advances in internal and external radiotherapy from different disciplinary angles: chemistry, biology, physics, and medicine. The workshop covered several deliberately diverse topics: the role of artificial intelligence, new tools for imaging and external radiotherapy, theranostic aspects, molecules and contrast agents, vectors for innovative combined therapies, and the use of alpha particles in therapy.
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Affiliation(s)
- Françoise Léost
- Cancéropôle Grand-Ouest, IRS-UN, 8, quai Moncousu, 44007 Nantes cedex 1, France.
| | | | - Maryline Beyler
- Université de Brest, UMR CNRS-UBO 6521 CEMCA, 6, avenue V.-Le-Gorgeu, 29200 Brest, France
| | - Michel Chérel
- Nantes Université, Inserm, CNRS, Université d'Angers, CRCI(2)NA, Nantes, France
| | - Grégory Delpon
- Institut de cancérologie de l'Ouest, département de physique médicale, boulevard Jacques-Monod, 44800 Saint-Herblain, France; Laboratoire SUBATECH, UMR 6457 CNRS-IN2P3, IMT Atlantique, 4, rue Alfred-Kastler, 44307 Nantes cedex 3, France
| | - Emmanuel Garcion
- Université d'Angers, Inserm, CNRS, Nantes Université, CRCI(2)NA, Angers, France
| | - Sara Lacerda
- Université d'Orléans, centre de biophysique moléculaire, CNRS UPR 4301, rue Charles-Sadron, 45071 Orléans cedex 2, France
| | - Nicolas Lepareur
- Université de Rennes, Inrae, Inserm, CLCC Eugène-Marquis, institut nutrition, métabolismes et cancer (NUMECAN), UMR 1317, Rennes, France
| | - Latifa Rbah-Vidal
- Nantes Université, Inserm, CNRS, Université d'Angers, CRCI(2)NA, Nantes, France
| | - Loïg Vaugier
- Institut de cancérologie de l'Ouest, département de physique médicale, boulevard Jacques-Monod, 44800 Saint-Herblain, France; Laboratoire SUBATECH, UMR 6457 CNRS-IN2P3, IMT Atlantique, 4, rue Alfred-Kastler, 44307 Nantes cedex 3, France
| | - Dimitris Visvikis
- Inserm, LaTIM, UMR 1101, IBSAM, UBO, UBL, 22, rue Camille-Desmoulins, 29238 Brest, France
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4
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Malikidogo KP, Isaac M, Uguen A, Même S, Pallier A, Clémençon R, Morfin JF, Lacerda S, Tóth É, Bonnet CS. Zinc-sensitive MRI contrast agents: importance of local probe accumulation in zinc-rich tissues. Chem Commun (Camb) 2023; 59:12883-12886. [PMID: 37818645 DOI: 10.1039/d3cc03137c] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/12/2023]
Abstract
We present the in vitro characterisation of a Gd3+-based contrast agent that responds to Zn2+ upon interaction with Human Serum Albumin. We show that the contradictory in vivo behaviour is related to Gd3+-accumulation in Zn-rich tissues. This highlights the importance of the biodistribution of such contrast agents.
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Affiliation(s)
- Kyangwi P Malikidogo
- Centre de Biophysique Moléculaire, CNRS UPR 4301, Université d'Orléans., Rue Charles Sadron, Orléans 45071, France.
| | - Manon Isaac
- Centre de Biophysique Moléculaire, CNRS UPR 4301, Université d'Orléans., Rue Charles Sadron, Orléans 45071, France.
| | - Adrien Uguen
- Centre de Biophysique Moléculaire, CNRS UPR 4301, Université d'Orléans., Rue Charles Sadron, Orléans 45071, France.
| | - Sandra Même
- Centre de Biophysique Moléculaire, CNRS UPR 4301, Université d'Orléans., Rue Charles Sadron, Orléans 45071, France.
| | - Agnès Pallier
- Centre de Biophysique Moléculaire, CNRS UPR 4301, Université d'Orléans., Rue Charles Sadron, Orléans 45071, France.
| | - Rudy Clémençon
- Centre de Biophysique Moléculaire, CNRS UPR 4301, Université d'Orléans., Rue Charles Sadron, Orléans 45071, France.
| | - Jean-François Morfin
- Centre de Biophysique Moléculaire, CNRS UPR 4301, Université d'Orléans., Rue Charles Sadron, Orléans 45071, France.
| | - Sara Lacerda
- Centre de Biophysique Moléculaire, CNRS UPR 4301, Université d'Orléans., Rue Charles Sadron, Orléans 45071, France.
| | - Éva Tóth
- Centre de Biophysique Moléculaire, CNRS UPR 4301, Université d'Orléans., Rue Charles Sadron, Orléans 45071, France.
| | - Célia S Bonnet
- Centre de Biophysique Moléculaire, CNRS UPR 4301, Université d'Orléans., Rue Charles Sadron, Orléans 45071, France.
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5
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Chaher N, Digilio G, Lacerda S, Botnar RM, Phinikaridou A. Optimized Methods for the Surface Immobilization of Collagens and Collagen Binding Assays. J Vis Exp 2023. [PMID: 37036233 DOI: 10.3791/64720] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/11/2023] Open
Abstract
Fibrosis occurs in various tissues as a reparative response to injury or damage. If excessive, however, fibrosis can lead to tissue scarring and organ failure, which is associated with high morbidity and mortality. Collagen is a key driver of fibrosis, with type I and type III collagen being the primary types involved in many fibrotic diseases. Unlike conventional protocols used to immobilize other proteins (e.g., elastin, albumin, fibronectin, etc.), comprehensive protocols to reproducibly immobilize different types of collagens in order to produce stable coatings are not readily available. Immobilizing collagen is surprisingly challenging because multiple experimental conditions may affect the efficiency of immobilization, including the type of collagen, the pH, the temperature, and the type of microplate used. Here, a detailed protocol to reproducibly immobilize and quantify type I and III collagens resulting in stable and reproducible gels/films is provided. Furthermore, this work demonstrates how to perform, analyze, and interpret in vitro time-resolved fluorescence binding studies to investigate the interactions between collagens and candidate collagen-binding compounds (e.g., a peptide conjugated to a metal chelate carrying, for example, europium [Eu(III)]). Such an approach can be universally applied to various biomedical applications, including the field of molecular imaging to develop targeted imaging probes, drug development, cell toxicity studies, cell proliferation studies, and immunoassays.
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Affiliation(s)
- Nadia Chaher
- School of Biomedical Engineering and Imaging Sciences, King's College London
| | - Giuseppe Digilio
- Dipartimento di Scienze e Innovazione Tecnologica, Università del Piemonte Orientale
| | - Sara Lacerda
- Centre de Biophysique Moléculaire, CNRS UPR 4301, Université d'Orléans
| | - René M Botnar
- School of Biomedical Engineering and Imaging Sciences, King's College London; BHF Centre of Research Excellence, Cardiovascular Division, King's College London; Escuela de Ingeniería, Pontificia Universidad Católica de Chile; Instituto de Ingeniería Biológica y Médica, Pontificia Universidad Católica de Chile
| | - Alkystis Phinikaridou
- School of Biomedical Engineering and Imaging Sciences, King's College London; BHF Centre of Research Excellence, Cardiovascular Division, King's College London;
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Sy M, Ndiaye D, da Silva I, Lacerda S, Charbonnière LJ, Tóth É, Nonat AM. 55/52Mn 2+ Complexes with a Bispidine-Phosphonate Ligand: High Kinetic Inertness for Imaging Applications. Inorg Chem 2022; 61:13421-13432. [PMID: 35984220 DOI: 10.1021/acs.inorgchem.2c01681] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Bispidine (3,7-diazabicyclo[3.3.1]nonane) provides a rigid and preorganized scaffold that is particularly interesting for the stable and inert complexation of metal ions, especially for their application in medical imaging. In this study, we present the synthesis of two bispidine ligands with N-methanephosphonate (H4L1) and N-methanecarboxylate (H3L2) substituents as well as the physico-chemical properties of the corresponding Mn2+ and Zn2+ complexes. The two complexes [Mn(L1)]2- and [Mn(L2)]- have relatively moderate thermodynamic stability constants according to potentiometric titration data. However, they both display an exceptional kinetic inertness, as assessed by transmetallation experiments in the presence of 50 equiv excess of Zn2+, showing only ∼40 and 20% of dissociation for [Mn(L1)]2- and [Mn(L2)]-, respectively, after 150 days at pH 6 and 37 °C. Proton relaxivities amount to r1 = 4.31 mM-1 s-1 ([Mn(L1)]2-) and 3.64 mM-1 s-1 ([Mn(L2)]-) at 20 MHz, 25 °C, and are remarkable for Mn2+ complexes with one inner-sphere water molecule (q = 1); they are comparable to that of the commercial contrast agent [Gd(DOTA)(H2O)]-. The presence of one inner-sphere water molecule and an associative water exchange mechanism was confirmed by temperature-dependent transverse 17O relaxation rate measurements, which yielded kex298 = 0.12 × 107 and 5.5 × 107 s-1 for the water exchange rate of the phosphonate and the carboxylate complex, respectively. In addition, radiolabeling experiments with 52Mn were also performed with H2(L1)2- showing excellent radiolabeling properties and quantitative complexation at pH 7 in 15 min at room temperature as well as excellent stability of the complex in various biological media over 24 h.
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Affiliation(s)
- Maryame Sy
- Equipe de Synthèse pour l'Analyse, Université de Strasbourg, CNRS, IPHC UMR 7178, F-67 037 Strasbourg, France
| | - Daouda Ndiaye
- Centre de Biophysique Moléculaire, CNRS UPR 4301, Université d'Orléans, rue Charles Sadron, F-45071 Orléans, France
| | - Isidro da Silva
- CEMHTI, CNRS UPR3079, Université d'Orléans, F-45071 Orléans 2, France
| | - Sara Lacerda
- Centre de Biophysique Moléculaire, CNRS UPR 4301, Université d'Orléans, rue Charles Sadron, F-45071 Orléans, France
| | - Loïc J Charbonnière
- Equipe de Synthèse pour l'Analyse, Université de Strasbourg, CNRS, IPHC UMR 7178, F-67 037 Strasbourg, France
| | - Éva Tóth
- Centre de Biophysique Moléculaire, CNRS UPR 4301, Université d'Orléans, rue Charles Sadron, F-45071 Orléans, France
| | - Aline M Nonat
- Equipe de Synthèse pour l'Analyse, Université de Strasbourg, CNRS, IPHC UMR 7178, F-67 037 Strasbourg, France
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7
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Léost F, Chérel M, Chourpa I, Lacerda S, Vidal LR, Tripier R, Visvikis D. “Imaging of diagnostic and therapeutic biomarkers in oncology” XIIIe édition du workshop organisé par le réseau « Vectorisation, Imagerie, Radiothérapies » du Cancéropôle Grand-Ouest, 25–28 septembre 2019, Le Bono, France. Bull Cancer 2022; 109:1094-1100. [DOI: 10.1016/j.bulcan.2022.05.010] [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] [Received: 03/21/2022] [Accepted: 05/19/2022] [Indexed: 11/29/2022]
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8
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Lacerda S, Zhang W, T. M. de Rosales R, Da Silva I, Sobilo J, Lerondel S, Tóth É, Djanashvili K. On the Versatility of Nanozeolite Linde Type L for Biomedical Applications: Zirconium-89 Radiolabeling and In Vivo Positron Emission Tomography Study. ACS Appl Mater Interfaces 2022; 14:32788-32798. [PMID: 35830285 PMCID: PMC9335405 DOI: 10.1021/acsami.2c03841] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/02/2022] [Accepted: 07/01/2022] [Indexed: 06/15/2023]
Abstract
Porous materials, such as zeolites, have great potential for biomedical applications, thanks to their ability to accommodate positively charged metal-ions and their facile surface functionalization. Although the latter aspect is important to endow the nanoparticles with chemical/colloidal stability and desired biological properties, the possibility for simple ion-exchange enables easy switching between imaging modalities and/or combination with therapy, depending on the envisioned application. In this study, the nanozeolite Linde type L (LTL) with already confirmed magnetic resonance imaging properties, generated by the paramagnetic gadolinium (GdIII) in the inner cavities, was successfully radiolabeled with a positron emission tomography (PET)-tracer zirconium-89 (89Zr). Thereby, exploiting 89Zr-chloride resulted in a slightly higher radiolabeling in the inner cavities compared to the commonly used 89Zr-oxalate, which apparently remained on the surface of LTL. Intravenous injection of PEGylated 89Zr/GdIII-LTL in healthy mice allowed for PET-computed tomography evaluation, revealing initial lung uptake followed by gradual migration of LTL to the liver and spleen. Ex vivo biodistribution confirmed the in vivo stability and integrity of the proposed multimodal probe by demonstrating the original metal/Si ratio being preserved in the organs. These findings reveal beneficial biological behavior of the nanozeolite LTL and hence open the door for follow-up theranostic studies by exploiting the immense variety of metal-based radioisotopes.
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Affiliation(s)
- Sara Lacerda
- Centre
de Biophysique Moléculaire, CNRS UPR4301, Rue Charles Sadron, Orléans 45071 Cedex 2, France
| | - Wuyuan Zhang
- Department
of Biotechnology, Delft University of Technology, Van der Maasweg 9, Delft 2629 HZ, The Netherlands
| | - Rafael T. M. de Rosales
- School
of Biomedical Engineering & Imaging Sciences, St Thomas’
Hospital, King’s College London, London SE1 7EH, U.K.
| | - Isidro Da Silva
- CEMHTI,
CNRS UPR3079, Université d’Orléans, Orléans 45071, France
| | - Julien Sobilo
- Centre
d’Imagerie du petit Animal, PHENOMIN-TAAM, CNRS UAR44, Orléans F-45071, France
| | - Stéphanie Lerondel
- Centre
d’Imagerie du petit Animal, PHENOMIN-TAAM, CNRS UAR44, Orléans F-45071, France
| | - Éva Tóth
- Centre
de Biophysique Moléculaire, CNRS UPR4301, Rue Charles Sadron, Orléans 45071 Cedex 2, France
| | - Kristina Djanashvili
- Centre
de Biophysique Moléculaire, CNRS UPR4301, Rue Charles Sadron, Orléans 45071 Cedex 2, France
- Department
of Biotechnology, Delft University of Technology, Van der Maasweg 9, Delft 2629 HZ, The Netherlands
- Le Studium,
Loire Valley Institute for Advanced Studies, 1 Rue Dupanloup, Orléans 45000, France
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9
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Capuana F, Phinikaridou A, Stefania R, Padovan S, Lavin B, Lacerda S, Almouazen E, Chevalier Y, Heinrich-Balard L, Botnar RM, Aime S, Digilio G. Imaging of Dysfunctional Elastogenesis in Atherosclerosis Using an Improved Gadolinium-Based Tetrameric MRI Probe Targeted to Tropoelastin. J Med Chem 2021; 64:15250-15261. [PMID: 34661390 PMCID: PMC8558862 DOI: 10.1021/acs.jmedchem.1c01286] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Dysfunctional elastin turnover plays a major role in the progression of atherosclerotic plaques. Failure of tropoelastin cross-linking into mature elastin leads to the accumulation of tropoelastin within the growing plaque, increasing its instability. Here we present Gd4-TESMA, an MRI contrast agent specifically designed for molecular imaging of tropoelastin within plaques. Gd4-TESMA is a tetrameric probe composed of a tropoelastin-binding peptide (the VVGS-peptide) conjugated with four Gd(III)-DOTA-monoamide chelates. It shows a relaxivity per molecule of 34.0 ± 0.8 mM-1 s-1 (20 MHz, 298 K, pH 7.2), a good binding affinity to tropoelastin (KD = 41 ± 12 μM), and a serum half-life longer than 2 h. Gd4-TESMA accumulates specifically in atherosclerotic plaques in the ApoE-/- murine model of plaque progression, with 2 h persistence of contrast enhancement. As compared to the monomeric counterpart (Gd-TESMA), the tetrameric Gd4-TESMA probe shows a clear advantage regarding both sensitivity and imaging time window, allowing for a better characterization of atherosclerotic plaques.
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Affiliation(s)
- Federico Capuana
- Department of Molecular Biotechnology and Health Sciences, University of Turin, Via Nizza 52, Turin 10126, Italy
| | - Alkystis Phinikaridou
- School of Biomedical Engineering and Imaging Sciences, King's College London, Westminster Bridge Road, London SE1 7EH, United Kingdom
| | - Rachele Stefania
- Department of Molecular Biotechnology and Health Sciences, University of Turin, Via Nizza 52, Turin 10126, Italy
| | - Sergio Padovan
- Institute for Biostructures and Bioimages (CNR) c/o Molecular Biotechnology Center, Via Nizza 52, Torino 10126, Italy
| | - Begoña Lavin
- School of Biomedical Engineering and Imaging Sciences, King's College London, Westminster Bridge Road, London SE1 7EH, United Kingdom.,Department of Biochemistry and Molecular Biology, School of Chemistry, Complutense University, Ciudad Universitaria s/n, Madrid 28040, Spain
| | - Sara Lacerda
- Centre de Biophysique Moléculaire, CNRS, UPR 4301, Université d'Orléans, Rue Charles Sadron, Orléans Cedex 2 45071, France
| | - Eyad Almouazen
- CNRS, LAGEPP UMR 5007, Univ Lyon, Université Claude Bernard Lyon 1, 43 boulevard du 11 novembre 1918, Villeurbanne 69622, France
| | - Yves Chevalier
- CNRS, LAGEPP UMR 5007, Univ Lyon, Université Claude Bernard Lyon 1, 43 boulevard du 11 novembre 1918, Villeurbanne 69622, France
| | - Laurence Heinrich-Balard
- INSA Lyon, CNRS, MATEIS, UMR5510, Univ Lyon, Université Claude Bernard Lyon 1, Villeurbanne 69100, France
| | - René M Botnar
- School of Biomedical Engineering and Imaging Sciences, King's College London, Westminster Bridge Road, London SE1 7EH, United Kingdom.,Escuela de Ingeniería, Pontificia Universidad Católica de Chile, Avda. Vicuña Mackenna, Santiago 4860, Chile
| | | | - Giuseppe Digilio
- Department of Science and Technologic Innovation, Università del Piemonte Orientale ″Amedeo Avogadro″, Viale T. Michel 11, Alessandria 15121, Italy
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10
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Lacerda S, Delalande A, Eliseeva SV, Pallier A, Bonnet CS, Szeremeta F, Même S, Pichon C, Petoud S, Tóth É. Doxorubicin‐Sensitized Luminescence of NIR‐Emitting Ytterbium Liposomes: Towards Direct Monitoring of Drug Release. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202109408] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Sara Lacerda
- Centre de Biophysique Moléculaire CNRS UPR 4301 Université d'Orléans rue Charles Sadron 45071 Orléans France
| | - Anthony Delalande
- Centre de Biophysique Moléculaire CNRS UPR 4301 Université d'Orléans rue Charles Sadron 45071 Orléans France
| | - Svetlana V. Eliseeva
- Centre de Biophysique Moléculaire CNRS UPR 4301 Université d'Orléans rue Charles Sadron 45071 Orléans France
| | - Agnès Pallier
- Centre de Biophysique Moléculaire CNRS UPR 4301 Université d'Orléans rue Charles Sadron 45071 Orléans France
| | - Célia S. Bonnet
- Centre de Biophysique Moléculaire CNRS UPR 4301 Université d'Orléans rue Charles Sadron 45071 Orléans France
| | - Frédéric Szeremeta
- Centre de Biophysique Moléculaire CNRS UPR 4301 Université d'Orléans rue Charles Sadron 45071 Orléans France
| | - Sandra Même
- Centre de Biophysique Moléculaire CNRS UPR 4301 Université d'Orléans rue Charles Sadron 45071 Orléans France
| | - Chantal Pichon
- Centre de Biophysique Moléculaire CNRS UPR 4301 Université d'Orléans rue Charles Sadron 45071 Orléans France
| | - Stéphane Petoud
- Centre de Biophysique Moléculaire CNRS UPR 4301 Université d'Orléans rue Charles Sadron 45071 Orléans France
| | - Éva Tóth
- Centre de Biophysique Moléculaire CNRS UPR 4301 Université d'Orléans rue Charles Sadron 45071 Orléans France
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11
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Lacerda S, Delalande A, Eliseeva SV, Pallier A, Bonnet CS, Szeremeta F, Même S, Pichon C, Petoud S, Tóth É. Doxorubicin-Sensitized Luminescence of NIR-Emitting Ytterbium Liposomes: Towards Direct Monitoring of Drug Release. Angew Chem Int Ed Engl 2021; 60:23574-23577. [PMID: 34387934 DOI: 10.1002/anie.202109408] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [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: 07/14/2021] [Indexed: 11/11/2022]
Abstract
Drug-loaded liposomes are typical examples of nanomedicines. We show here that doxorubicin, the anti-cancer agent in the liposomal drug Doxil, can sensitize Ytterbium (Yb3+ ) and generate its near-infrared (NIR) emission. When doxorubicin and amphiphilic Yb3+ chelates are incorporated into liposomes, the sensitized emission of Yb3+ is dependent on the integrity of the particles, which can be used to monitor drug release. We also established the first demonstration that the NIR Yb3+ emission signal is observable in living mice following intratumoral injection of the Yb3+ -doxorubicin-liposomes, using a commercial macroscopic setup equipped with a NIR camera.
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Affiliation(s)
- Sara Lacerda
- Centre de Biophysique Moléculaire, CNRS UPR 4301, Université d'Orléans, rue Charles Sadron, 45071, Orléans, France
| | - Anthony Delalande
- Centre de Biophysique Moléculaire, CNRS UPR 4301, Université d'Orléans, rue Charles Sadron, 45071, Orléans, France
| | - Svetlana V Eliseeva
- Centre de Biophysique Moléculaire, CNRS UPR 4301, Université d'Orléans, rue Charles Sadron, 45071, Orléans, France
| | - Agnès Pallier
- Centre de Biophysique Moléculaire, CNRS UPR 4301, Université d'Orléans, rue Charles Sadron, 45071, Orléans, France
| | - Célia S Bonnet
- Centre de Biophysique Moléculaire, CNRS UPR 4301, Université d'Orléans, rue Charles Sadron, 45071, Orléans, France
| | - Frédéric Szeremeta
- Centre de Biophysique Moléculaire, CNRS UPR 4301, Université d'Orléans, rue Charles Sadron, 45071, Orléans, France
| | - Sandra Même
- Centre de Biophysique Moléculaire, CNRS UPR 4301, Université d'Orléans, rue Charles Sadron, 45071, Orléans, France
| | - Chantal Pichon
- Centre de Biophysique Moléculaire, CNRS UPR 4301, Université d'Orléans, rue Charles Sadron, 45071, Orléans, France
| | - Stéphane Petoud
- Centre de Biophysique Moléculaire, CNRS UPR 4301, Université d'Orléans, rue Charles Sadron, 45071, Orléans, France
| | - Éva Tóth
- Centre de Biophysique Moléculaire, CNRS UPR 4301, Université d'Orléans, rue Charles Sadron, 45071, Orléans, France
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12
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Schettino R, Lopes K, Lacerda S, Takeshita I. Experience Report: A Community Approach During The Covid-19 Pandemic. Eur J Public Health 2021. [PMCID: PMC8574261 DOI: 10.1093/eurpub/ckab165.032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
Introduction The slum areas present precariousness in terms of habitation, high populational concentration, lack of sanitary infrastructure, violence, and lack of water supply. This scenario makes it difficult the caring to prevent COVID-19 contamination. Belo Horizonte, like other Brazilian capital cities, presents this scenario, which calls society's attention. Objective Experience report made by Nursing academics who took basic food baskets to a slum during the COVID-19 pandemic. Methods Social action by three Nursing students who collected and delivered basic food baskets to a community in Belo Horizonte. It became an opportunity to social assistance and to the understanding of how these slum dwellers face COVID-19. A local leader prepared a list of families facing vulnerable situation. These families received the baskets. At the time of the deliveries, there was an opportunity to answer some doubts about COVID-19 and health. Results The dwellers moved around on the streets without masks, maybe because of lack of resources. The dwellings did not favor social distancing and hygiene care. There were small rooms, excess of people, little ventilation, and deficient sanitation conditions. The people who were infected with the virus suffered retaliation because the other people were afraid of COVID-19 transmission. The infected people became cloistered at home to avoid the community retaliation. Everyone thanked the delivery of basic food baskets saying that this delivery would be a relief during the pandemic. Conclusions By observation and contact with the dwellers, it was possible to notice the scarcity of resources and the need of financial and informational help about COVID-19 and other health topics. The basic food basket donation was relevant to the families, but the number of donations did not supply the local necessity. Other social and governmental actions are needed to promote local health. Key messages Financial aid from the government must be implemented so that people on the street can have the basics to survive. Government support and an example model is important for the population to follow as a reference. Our current government has not been a good example, leading to chaos in public and private health.
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Affiliation(s)
- R Schettino
- Nursing Course, Faculty of Medical Sciences of Minas Gerais, Belo Horizonte, Brazil
| | - K Lopes
- Nursing Course, Faculty of Medical Sciences of Minas Gerais, Belo Horizonte, Brazil
| | - S Lacerda
- Nursing Course, Faculty of Medical Sciences of Minas Gerais, Belo Horizonte, Brazil
| | - I Takeshita
- Faculty of Medical Sciences of Minas Gerais, Belo Horizonte, Brazil
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13
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Majdoub S, Garda Z, Oliveira AC, Relich I, Pallier A, Lacerda S, Hureau C, Geraldes CFGC, Morfin JF, Tóth É. Concentration-Dependent Interactions of Amphiphilic PiB Derivative Metal Complexes with Amyloid Peptides Aβ and Amylin*. Chemistry 2021; 27:2009-2020. [PMID: 33026686 DOI: 10.1002/chem.202004000] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [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: 09/01/2020] [Indexed: 11/07/2022]
Abstract
Metal chelates targeted to amyloid peptides are widely explored as diagnostic tools or therapeutic agents. The attachment of a metal complex to amyloid recognition units typically leads to a decrease in peptide affinity. We show here that by separating a macrocyclic GdL chelate and a PiB targeting unit with a long hydrophobic C10 linker, it is possible to attain nanomolar affinities for both Aβ1-40 (Kd =4.4 nm) and amylin (Kd =4.5 nm), implicated, respectively in Alzheimer's disease and diabetes. The Scatchard analysis of surface plasmon resonance data obtained for a series of amphiphilic, PiB derivative GdL complexes indicate that their Aβ1-40 or amylin binding affinity varies with their concentration, thus micellar aggregation state. The GdL chelates also affect peptide aggregation kinetics, as probed by thioflavin-T fluorescence assays. A 2D NMR study allowed identifying that the hydrophilic region of Aβ1-40 is involved in the interaction between the monomer peptide and the Gd3+ complex. Finally, ex vivo biodistribution experiments were conducted in healthy mice by using 111 In labeled analogues. Their pancreatic uptake, ∼3 %ID g-1 , is promising to envisage amylin imaging in diabetic animals.
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Affiliation(s)
- Saida Majdoub
- Centre de Biophysique Moléculaire, CNRS UPR 4301, Université d'Orléans, rue Charles Sadron, 45071, Orléans, France
| | - Zoltán Garda
- Department of Physical Chemistry, Faculty of Science and Technology, University of Debrecen, Egyetem tér 1, 4032, Debrecen, Hungary
| | - Alexandre C Oliveira
- Department of Chemistry, University of Coimbra, Coimbra Chemistry Centre (CQC), 3004-535, Coimbra, Portugal
| | - Inga Relich
- LCC-CNRS, Université de Toulouse, CNRS, Toulouse, France
| | - Agnès Pallier
- Centre de Biophysique Moléculaire, CNRS UPR 4301, Université d'Orléans, rue Charles Sadron, 45071, Orléans, France
| | - Sara Lacerda
- Centre de Biophysique Moléculaire, CNRS UPR 4301, Université d'Orléans, rue Charles Sadron, 45071, Orléans, France
| | | | - Carlos F G C Geraldes
- Department of Chemistry, University of Coimbra, Coimbra Chemistry Centre (CQC), 3004-535, Coimbra, Portugal.,Department of Life Sciences, University of Coimbra, Calçada Martim de Freitas, 3000-393, Coimbra, Portugal.,CIBIT/ICNAS-Instituto de Ciências Nucleares Aplicadas à Saúde, Pólo das Ciências da Saúde, Azinhaga de Santa Comba, 3000-548, Coimbra, Portugal
| | - Jean-François Morfin
- Centre de Biophysique Moléculaire, CNRS UPR 4301, Université d'Orléans, rue Charles Sadron, 45071, Orléans, France
| | - Éva Tóth
- Centre de Biophysique Moléculaire, CNRS UPR 4301, Université d'Orléans, rue Charles Sadron, 45071, Orléans, France
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14
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Majdoub S, Garda Z, Oliveira AC, Relich I, Pallier A, Lacerda S, Hureau C, Geraldes CFGC, Morfin J, Tóth É. Front Cover: Concentration‐Dependent Interactions of Amphiphilic PiB Derivative Metal Complexes with Amyloid Peptides Aβ and Amylin (Chem. Eur. J. 6/2021). Chemistry 2021. [DOI: 10.1002/chem.202004824] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Saida Majdoub
- Centre de Biophysique Moléculaire CNRS UPR 4301 Université d'Orléans rue Charles Sadron 45071 Orléans France
| | - Zoltán Garda
- Department of Physical Chemistry Faculty of Science and Technology University of Debrecen Egyetem tér 1 4032 Debrecen Hungary
| | - Alexandre C. Oliveira
- Department of Chemistry University of Coimbra Coimbra Chemistry Centre (CQC) 3004-535 Coimbra Portugal
| | - Inga Relich
- LCC-CNRS Université de Toulouse, CNRS Toulouse France
| | - Agnès Pallier
- Centre de Biophysique Moléculaire CNRS UPR 4301 Université d'Orléans rue Charles Sadron 45071 Orléans France
| | - Sara Lacerda
- Centre de Biophysique Moléculaire CNRS UPR 4301 Université d'Orléans rue Charles Sadron 45071 Orléans France
| | | | - Carlos F. G. C. Geraldes
- Department of Chemistry University of Coimbra Coimbra Chemistry Centre (CQC) 3004-535 Coimbra Portugal
- Department of Life Sciences University of Coimbra, Calçada Martim de Freitas 3000-393 Coimbra Portugal
- CIBIT/ICNAS—Instituto de Ciências Nucleares Aplicadas à Saúde Pólo das Ciências da Saúde Azinhaga de Santa Comba 3000-548 Coimbra Portugal
| | - Jean‐François Morfin
- Centre de Biophysique Moléculaire CNRS UPR 4301 Université d'Orléans rue Charles Sadron 45071 Orléans France
| | - Éva Tóth
- Centre de Biophysique Moléculaire CNRS UPR 4301 Université d'Orléans rue Charles Sadron 45071 Orléans France
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15
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Majdoub S, Garda Z, Oliveira AC, Relich I, Pallier A, Lacerda S, Hureau C, Geraldes CFGC, Morfin JF, Tóth É. Concentration-Dependent Interactions of Amphiphilic PiB Derivative Metal Complexes with Amyloid Peptides Aβ and Amylin*. Chemistry 2020; 27:1864. [PMID: 33258526 DOI: 10.1002/chem.202004825] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
Invited for the cover of this issue are Jean-François Morfin and Éva Tóth at the CNRS in Orléans, and their collaborators from University of Debrecen, University of Coimbra and Université de Toulouse. The image depicts that when an amphiphilic compound is intravenously injected, monomer, pre-micellar and micellar forms can co-exist in the blood and have different affinities for amyloid peptides. Read the full text of the article at 10.1002/chem.202004000.
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Affiliation(s)
- Saida Majdoub
- Centre de Biophysique Moléculaire, CNRS UPR 4301, Université d'Orléans, rue Charles Sadron, 45071, Orléans, France
| | - Zoltán Garda
- Department of Physical Chemistry, Faculty of Science and Technology, University of Debrecen, Egyetem tér 1, 4032, Debrecen, Hungary
| | - Alexandre C Oliveira
- Department of Chemistry, University of Coimbra, Coimbra Chemistry Centre (CQC), 3004-535, Coimbra, Portugal
| | - Inga Relich
- LCC-CNRS, Université de Toulouse, CNRS, Toulouse, France
| | - Agnès Pallier
- Centre de Biophysique Moléculaire, CNRS UPR 4301, Université d'Orléans, rue Charles Sadron, 45071, Orléans, France
| | - Sara Lacerda
- Centre de Biophysique Moléculaire, CNRS UPR 4301, Université d'Orléans, rue Charles Sadron, 45071, Orléans, France
| | | | - Carlos F G C Geraldes
- Department of Chemistry, University of Coimbra, Coimbra Chemistry Centre (CQC), 3004-535, Coimbra, Portugal.,Department of Life Sciences, University of Coimbra, Calçada Martim de Freitas, 3000-393, Coimbra, Portugal.,CIBIT/ICNAS-Instituto de Ciências Nucleares Aplicadas à Saúde, Pólo das Ciências da Saúde, Azinhaga de Santa Comba, 3000-548, Coimbra, Portugal
| | - Jean-François Morfin
- Centre de Biophysique Moléculaire, CNRS UPR 4301, Université d'Orléans, rue Charles Sadron, 45071, Orléans, France
| | - Éva Tóth
- Centre de Biophysique Moléculaire, CNRS UPR 4301, Université d'Orléans, rue Charles Sadron, 45071, Orléans, France
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16
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Lavin B, Lacerda S, Andia ME, Lorrio S, Bakewell R, Smith A, Rashid I, Botnar RM, Phinikaridou A. Tropoelastin: an in vivo imaging marker of dysfunctional matrix turnover during abdominal aortic dilation. Cardiovasc Res 2020; 116:995-1005. [PMID: 31282949 PMCID: PMC7104357 DOI: 10.1093/cvr/cvz178] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/06/2019] [Accepted: 07/05/2019] [Indexed: 12/15/2022] Open
Abstract
Aims Dysfunctional matrix turnover is present at sites of abdominal aortic aneurysm (AAA) and leads to the accumulation of monomeric tropoelastin rather than cross-linked elastin. We used a gadolinium-based tropoelastin-specific magnetic resonance contrast agent (Gd-TESMA) to test whether quantifying regional tropoelastin turnover correlates with aortic expansion in a murine model. The binding of Gd-TESMA to excised human AAA was also assessed. Methods and results We utilized the angiotensin II (Ang II)-infused apolipoprotein E gene knockout (ApoE-/-) murine model of aortic dilation and performed in vivo imaging of tropoelastin by administering Gd-TESMA followed by late gadolinium enhancement (LGE) magnetic resonance imaging (MRI) and T1 mapping at 3 T, with subsequent ex vivo validation. In a cross-sectional study (n = 66; control = 11, infused = 55) we found that Gd-TESMA enhanced MRI was elevated and confined to dilated aortic segments (control: LGE=0.13 ± 0.04 mm2, control R1= 1.1 ± 0.05 s-1 vs. dilated LGE=1.0 ± 0.4 mm2, dilated R1 =2.4 ± 0.9 s-1) and was greater in segments with medium (8.0 ± 3.8 mm3) and large (10.4 ± 4.1 mm3) compared to small (3.6 ± 2.1 mm3) vessel volume. Furthermore, a proof-of-principle longitudinal study (n = 19) using Gd-TESMA enhanced MRI demonstrated a greater proportion of tropoelastin: elastin expression in dilating compared to non-dilating aortas, which correlated with the rate of aortic expansion. Treatment with pravastatin and aspirin (n = 10) did not reduce tropoelastin turnover (0.87 ± 0.3 mm2 vs. 1.0 ± 0.44 mm2) or aortic dilation (4.86 ± 2.44 mm3 vs. 4.0 ± 3.6 mm3). Importantly, Gd-TESMA-enhanced MRI identified accumulation of tropoelastin in excised human aneurysmal tissue (n = 4), which was confirmed histologically. Conclusion Tropoelastin MRI identifies dysfunctional matrix remodelling that is specifically expressed in regions of aortic aneurysm or dissection and correlates with the development and rate of aortic expansion. Thus, it may provide an additive imaging marker to the serial assessment of luminal diameter for surveillance of patients at risk of or with established aortopathy.
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Affiliation(s)
- Begoña Lavin
- School of Biomedical Engineering and Imaging Sciences, Department of Biomedical Engineering, King's College London, 3rd Floor, Lambeth Wing, St Thomas' Hospital, London SE1 7EH, UK.,Cardiovascular Division, BHF Centre of Excellence, King's College London, London, UK
| | - Sara Lacerda
- School of Biomedical Engineering and Imaging Sciences, Department of Biomedical Engineering, King's College London, 3rd Floor, Lambeth Wing, St Thomas' Hospital, London SE1 7EH, UK.,Cardiovascular Division, BHF Centre of Excellence, King's College London, London, UK.,Centre de Biophysique Moléculaire, CNRS, Orléans, France
| | - Marcelo E Andia
- School of Biomedical Engineering and Imaging Sciences, Department of Biomedical Engineering, King's College London, 3rd Floor, Lambeth Wing, St Thomas' Hospital, London SE1 7EH, UK.,Radiology Department, School of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Silvia Lorrio
- School of Biomedical Engineering and Imaging Sciences, Department of Biomedical Engineering, King's College London, 3rd Floor, Lambeth Wing, St Thomas' Hospital, London SE1 7EH, UK.,Cardiovascular Division, BHF Centre of Excellence, King's College London, London, UK
| | - Robert Bakewell
- School of Biomedical Engineering and Imaging Sciences, Department of Biomedical Engineering, King's College London, 3rd Floor, Lambeth Wing, St Thomas' Hospital, London SE1 7EH, UK
| | - Alberto Smith
- Cardiovascular Division, Academic Department of Vascular Surgery, King's College London, London, UK
| | - Imran Rashid
- School of Biomedical Engineering and Imaging Sciences, Department of Biomedical Engineering, King's College London, 3rd Floor, Lambeth Wing, St Thomas' Hospital, London SE1 7EH, UK
| | - René M Botnar
- School of Biomedical Engineering and Imaging Sciences, Department of Biomedical Engineering, King's College London, 3rd Floor, Lambeth Wing, St Thomas' Hospital, London SE1 7EH, UK.,Cardiovascular Division, BHF Centre of Excellence, King's College London, London, UK.,Wellcome Trust and EPSRC Medical Engineering Center, King's College London, London, UK.,Pontificia Universidad Católica de Chile, Escuela de Ingeniería, Santiago, Chile
| | - Alkystis Phinikaridou
- School of Biomedical Engineering and Imaging Sciences, Department of Biomedical Engineering, King's College London, 3rd Floor, Lambeth Wing, St Thomas' Hospital, London SE1 7EH, UK.,Cardiovascular Division, BHF Centre of Excellence, King's College London, London, UK
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17
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Ndiaye D, Sy M, Pallier A, Même S, Silva I, Lacerda S, Nonat AM, Charbonnière LJ, Tóth É. Unprecedented Kinetic Inertness for a Mn
2+
‐Bispidine Chelate: A Novel Structural Entry for Mn
2+
‐Based Imaging Agents. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202003685] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Daouda Ndiaye
- Centre de Biophyisique Moléculaire, CNRS UPR 4301 Université d'Orléans rue Charles Sadron 45071 Orléans France
| | - Maryame Sy
- Equipe de Synthèse Pour l'Analyse Université de Strasbourg CNRS, IPHC UMR 7178 67000 Strasbourg France
| | - Agnès Pallier
- Centre de Biophyisique Moléculaire, CNRS UPR 4301 Université d'Orléans rue Charles Sadron 45071 Orléans France
| | - Sandra Même
- Centre de Biophyisique Moléculaire, CNRS UPR 4301 Université d'Orléans rue Charles Sadron 45071 Orléans France
| | - Isidro Silva
- CEMHTI, CNRS UPR3079 Université d'Orléans 45071 Orléans 2 France
| | - Sara Lacerda
- Centre de Biophyisique Moléculaire, CNRS UPR 4301 Université d'Orléans rue Charles Sadron 45071 Orléans France
| | - Aline M. Nonat
- Equipe de Synthèse Pour l'Analyse Université de Strasbourg CNRS, IPHC UMR 7178 67000 Strasbourg France
| | - Loïc J. Charbonnière
- Equipe de Synthèse Pour l'Analyse Université de Strasbourg CNRS, IPHC UMR 7178 67000 Strasbourg France
| | - Éva Tóth
- Centre de Biophyisique Moléculaire, CNRS UPR 4301 Université d'Orléans rue Charles Sadron 45071 Orléans France
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18
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Ndiaye D, Sy M, Pallier A, Même S, Silva I, Lacerda S, Nonat AM, Charbonnière LJ, Tóth É. Inside Back Cover: Unprecedented Kinetic Inertness for a Mn
2+
‐Bispidine Chelate: A Novel Structural Entry for Mn
2+
‐Based Imaging Agents (Angew. Chem. Int. Ed. 29/2020). Angew Chem Int Ed Engl 2020. [DOI: 10.1002/anie.202007161] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Daouda Ndiaye
- Centre de Biophyisique Moléculaire, CNRS UPR 4301 Université d'Orléans rue Charles Sadron 45071 Orléans France
| | - Maryame Sy
- Equipe de Synthèse Pour l'Analyse Université de Strasbourg CNRS, IPHC UMR 7178 67000 Strasbourg France
| | - Agnès Pallier
- Centre de Biophyisique Moléculaire, CNRS UPR 4301 Université d'Orléans rue Charles Sadron 45071 Orléans France
| | - Sandra Même
- Centre de Biophyisique Moléculaire, CNRS UPR 4301 Université d'Orléans rue Charles Sadron 45071 Orléans France
| | - Isidro Silva
- CEMHTI, CNRS UPR3079 Université d'Orléans 45071 Orléans 2 France
| | - Sara Lacerda
- Centre de Biophyisique Moléculaire, CNRS UPR 4301 Université d'Orléans rue Charles Sadron 45071 Orléans France
| | - Aline M. Nonat
- Equipe de Synthèse Pour l'Analyse Université de Strasbourg CNRS, IPHC UMR 7178 67000 Strasbourg France
| | - Loïc J. Charbonnière
- Equipe de Synthèse Pour l'Analyse Université de Strasbourg CNRS, IPHC UMR 7178 67000 Strasbourg France
| | - Éva Tóth
- Centre de Biophyisique Moléculaire, CNRS UPR 4301 Université d'Orléans rue Charles Sadron 45071 Orléans France
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19
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Ndiaye D, Sy M, Pallier A, Même S, Silva I, Lacerda S, Nonat AM, Charbonnière LJ, Tóth É. Unprecedented Kinetic Inertness for a Mn
2+
‐Bispidine Chelate: A Novel Structural Entry for Mn
2+
‐Based Imaging Agents. Angew Chem Int Ed Engl 2020; 59:11958-11963. [DOI: 10.1002/anie.202003685] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2020] [Revised: 04/06/2020] [Indexed: 11/10/2022]
Affiliation(s)
- Daouda Ndiaye
- Centre de Biophyisique Moléculaire, CNRS UPR 4301 Université d'Orléans rue Charles Sadron 45071 Orléans France
| | - Maryame Sy
- Equipe de Synthèse Pour l'Analyse Université de Strasbourg CNRS, IPHC UMR 7178 67000 Strasbourg France
| | - Agnès Pallier
- Centre de Biophyisique Moléculaire, CNRS UPR 4301 Université d'Orléans rue Charles Sadron 45071 Orléans France
| | - Sandra Même
- Centre de Biophyisique Moléculaire, CNRS UPR 4301 Université d'Orléans rue Charles Sadron 45071 Orléans France
| | - Isidro Silva
- CEMHTI, CNRS UPR3079 Université d'Orléans 45071 Orléans 2 France
| | - Sara Lacerda
- Centre de Biophyisique Moléculaire, CNRS UPR 4301 Université d'Orléans rue Charles Sadron 45071 Orléans France
| | - Aline M. Nonat
- Equipe de Synthèse Pour l'Analyse Université de Strasbourg CNRS, IPHC UMR 7178 67000 Strasbourg France
| | - Loïc J. Charbonnière
- Equipe de Synthèse Pour l'Analyse Université de Strasbourg CNRS, IPHC UMR 7178 67000 Strasbourg France
| | - Éva Tóth
- Centre de Biophyisique Moléculaire, CNRS UPR 4301 Université d'Orléans rue Charles Sadron 45071 Orléans France
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20
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Silva F, Paulo A, Pallier A, Même S, Tóth É, Gano L, Marques F, Geraldes CF, Castro MMC, Cardoso AM, Jurado AS, López-Larrubia P, Lacerda S, Cabral Campello MP. Dual Imaging Gold Nanoplatforms for Targeted Radiotheranostics. Materials (Basel) 2020; 13:ma13030513. [PMID: 31978954 PMCID: PMC7040626 DOI: 10.3390/ma13030513] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/16/2019] [Revised: 01/08/2020] [Accepted: 01/20/2020] [Indexed: 02/07/2023]
Abstract
Gold nanoparticles (AuNPs) are interesting for the design of new cancer theranostic tools, mainly due to their biocompatibility, easy molecular vectorization, and good biological half-life. Herein, we report a gold nanoparticle platform as a bimodal imaging probe, capable of coordinating Gd3+ for Magnetic Resonance Imaging (MRI) and 67Ga3+ for Single Photon Emission Computed Tomography (SPECT) imaging. Our AuNPs carry a bombesin analogue with affinity towards the gastrin releasing peptide receptor (GRPr), overexpressed in a variety of human cancer cells, namely PC3 prostate cancer cells. The potential of these multimodal imaging nanoconstructs was thoroughly investigated by the assessment of their magnetic properties, in vitro cellular uptake, biodistribution, and radiosensitisation assays. The relaxometric properties predict a potential T1- and T2- MRI application. The promising in vitro cellular uptake of 67Ga/Gd-based bombesin containing particles was confirmed through biodistribution studies in tumor bearing mice, indicating their integrity and ability to target the GRPr. Radiosensitization studies revealed the therapeutic potential of the nanoparticles. Moreover, the DOTA chelating unit moiety versatility gives a high theranostic potential through the coordination of other therapeutically interesting radiometals. Altogether, our nanoparticles are interesting nanomaterial for theranostic application and as bimodal T1- and T2- MRI / SPECT imaging probes.
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Affiliation(s)
- Francisco Silva
- Centro de Ciências e Tecnologias Nucleares, Instituto Superior Técnico, Universidade de Lisboa, Campus Tecnológico e Nuclear, Estrada Nacional 10, Km 139.7, 2695-066 Bobadela LRS, Portugal; (F.S.); (A.P.); (L.G.); (F.M.)
- Departamento de Engenharia e Ciências Nucleares (DECN), Instituto Superior Técnico, Universidade de Lisboa, Estrada Nacional 10, 2695-066 Bobadela LRS, Portugal
| | - António Paulo
- Centro de Ciências e Tecnologias Nucleares, Instituto Superior Técnico, Universidade de Lisboa, Campus Tecnológico e Nuclear, Estrada Nacional 10, Km 139.7, 2695-066 Bobadela LRS, Portugal; (F.S.); (A.P.); (L.G.); (F.M.)
- Departamento de Engenharia e Ciências Nucleares (DECN), Instituto Superior Técnico, Universidade de Lisboa, Estrada Nacional 10, 2695-066 Bobadela LRS, Portugal
| | - Agnès Pallier
- Centre de Biophysique Moléculaire, CNRS, UPR 4301, Université d’Orléans, Rue Charles Sadron, 45071 Orléans CEDEX 2, France; (A.P.); (S.M.)
| | - Sandra Même
- Centre de Biophysique Moléculaire, CNRS, UPR 4301, Université d’Orléans, Rue Charles Sadron, 45071 Orléans CEDEX 2, France; (A.P.); (S.M.)
| | - Éva Tóth
- Centre de Biophysique Moléculaire, CNRS, UPR 4301, Université d’Orléans, Rue Charles Sadron, 45071 Orléans CEDEX 2, France; (A.P.); (S.M.)
| | - Lurdes Gano
- Centro de Ciências e Tecnologias Nucleares, Instituto Superior Técnico, Universidade de Lisboa, Campus Tecnológico e Nuclear, Estrada Nacional 10, Km 139.7, 2695-066 Bobadela LRS, Portugal; (F.S.); (A.P.); (L.G.); (F.M.)
- Departamento de Engenharia e Ciências Nucleares (DECN), Instituto Superior Técnico, Universidade de Lisboa, Estrada Nacional 10, 2695-066 Bobadela LRS, Portugal
| | - Fernanda Marques
- Centro de Ciências e Tecnologias Nucleares, Instituto Superior Técnico, Universidade de Lisboa, Campus Tecnológico e Nuclear, Estrada Nacional 10, Km 139.7, 2695-066 Bobadela LRS, Portugal; (F.S.); (A.P.); (L.G.); (F.M.)
- Departamento de Engenharia e Ciências Nucleares (DECN), Instituto Superior Técnico, Universidade de Lisboa, Estrada Nacional 10, 2695-066 Bobadela LRS, Portugal
| | - Carlos F.G.C. Geraldes
- Department of Life Sciences, Faculty of Science and TechnologyUniversity of Coimbra, Calçada Martim de Freitas, 3000-393 Coimbra, Portugal (A.S.J.)
- Coimbra Chemistry Center, University of Coimbra, 3004-535 Coimbra, Portugal
- CIBIT/ICNAS Instituto de Ciências Nucleares Aplicadas à Saúde. Pólo das Ciências da Saúde, Azinhaga de Santa Comba, 3000-548 Coimbra, Portugal
| | - M. Margarida C.A. Castro
- Department of Life Sciences, Faculty of Science and TechnologyUniversity of Coimbra, Calçada Martim de Freitas, 3000-393 Coimbra, Portugal (A.S.J.)
- Coimbra Chemistry Center, University of Coimbra, 3004-535 Coimbra, Portugal
| | - Ana M. Cardoso
- CNC-Center for Neuroscience and Cell Biology, University of Coimbra, 3004-517 Coimbra, Portugal;
- Institute for Interdisciplinary Research of the University of Coimbra, 3030-789 Coimbra, Portugal
| | - Amália S. Jurado
- Department of Life Sciences, Faculty of Science and TechnologyUniversity of Coimbra, Calçada Martim de Freitas, 3000-393 Coimbra, Portugal (A.S.J.)
- CNC-Center for Neuroscience and Cell Biology, University of Coimbra, 3004-517 Coimbra, Portugal;
| | - Pilar López-Larrubia
- Instituto de Investigaciones Biomédicas “Alberto Sols” CSIC/UAM, c/ Arturo Duperier 4, 28029 Madrid, Spain;
| | - Sara Lacerda
- Centre de Biophysique Moléculaire, CNRS, UPR 4301, Université d’Orléans, Rue Charles Sadron, 45071 Orléans CEDEX 2, France; (A.P.); (S.M.)
- Correspondence: (M.P.C.C.); (S.L.)
| | - Maria Paula Cabral Campello
- Centro de Ciências e Tecnologias Nucleares, Instituto Superior Técnico, Universidade de Lisboa, Campus Tecnológico e Nuclear, Estrada Nacional 10, Km 139.7, 2695-066 Bobadela LRS, Portugal; (F.S.); (A.P.); (L.G.); (F.M.)
- Departamento de Engenharia e Ciências Nucleares (DECN), Instituto Superior Técnico, Universidade de Lisboa, Estrada Nacional 10, 2695-066 Bobadela LRS, Portugal
- Correspondence: (M.P.C.C.); (S.L.)
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21
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Pinto-Magalhães S, Martins A, Lacerda S, Filipe R, Prista-Leão B, Pinheiro D, Silva-Pinto A, Santos L. Candidemia in a Portuguese tertiary care hospital: Analysis of a 2-year period. J Mycol Med 2019; 29:320-324. [PMID: 31444130 DOI: 10.1016/j.mycmed.2019.08.002] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2019] [Revised: 06/17/2019] [Accepted: 08/10/2019] [Indexed: 01/05/2023]
Abstract
BACKGROUND Candidemia is a nosocomial infection of increasing importance, associated with high morbidity and mortality. The aim of this study is to describe the species distribution, risk factors, management and outcomes of patients with candidemia. METHODS We conducted a retrospective study at Centro Hospitalar Universitário de São João, Portugal, between January 2016 and December 2017. RESULTS A total of 117 candidemia episodes (n=114 patients) were included. Median age was 65 years, with an increased prevalence of older ages. Candida albicans (51.3%) was the most prevalent species, followed by C. glabrata (22.2%), C. parapsilosis (15.4%), C. tropicalis (4.3%) and C. lusitaniae (2.6%). Forty-two patients (35.9%) did not receive antifungal drugs after diagnosis of candidemia. Echinocandins were used as first-line drug therapy in half of the treated patients (50.7%). The median EQUAL Candida Score was 6/17 (IQR 6-9) for patients without central venous catheter (CVC) and 11/20 (IQR 6-14) for patients with CVC. The 30 days-mortality was 31,6% and was not significantly associated with the timing of antifungal therapy and the EQUAL Candida Score. CONCLUSION The distribution of Candida species has changed in recent years, with an increase in the proportion of C. albicans and C. glabrata. Rapid diagnostic tests, empiric antifungal therapy and source control are essential to improve the prognosis of patients with candidemia. More multicentric prospective studies are needed to evaluate the association of mortality with the timing of antifungal therapy or the EQUAL Candida Score.
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Affiliation(s)
- S Pinto-Magalhães
- Faculty of Medicine of the University of Porto, Alameda Hernâni Monteiro, 4200-319 Porto, Portugal.
| | - A Martins
- Faculty of Medicine of the University of Porto, Alameda Hernâni Monteiro, 4200-319 Porto, Portugal; Infectious Diseases Department, Centro Hospitalar Universitário de São João, Alameda Hernâni Monteiro, 4200-319 Porto, Portugal
| | - S Lacerda
- Faculty of Medicine of the University of Porto, Alameda Hernâni Monteiro, 4200-319 Porto, Portugal; Infectious Diseases Department, Centro Hospitalar Universitário de São João, Alameda Hernâni Monteiro, 4200-319 Porto, Portugal
| | - R Filipe
- Faculty of Medicine of the University of Porto, Alameda Hernâni Monteiro, 4200-319 Porto, Portugal; Infectious Diseases Department, Centro Hospitalar Universitário de São João, Alameda Hernâni Monteiro, 4200-319 Porto, Portugal
| | - B Prista-Leão
- Faculty of Medicine of the University of Porto, Alameda Hernâni Monteiro, 4200-319 Porto, Portugal; Infectious Diseases Department, Centro Hospitalar Universitário de São João, Alameda Hernâni Monteiro, 4200-319 Porto, Portugal
| | - D Pinheiro
- Microbiology Laboratory, Clinical Pathology Department, Centro Hospitalar Universitário de São João, Alameda Hernâni Monteiro, 4200-319 Porto, Portugal
| | - A Silva-Pinto
- Faculty of Medicine of the University of Porto, Alameda Hernâni Monteiro, 4200-319 Porto, Portugal; Infectious Diseases Department, Centro Hospitalar Universitário de São João, Alameda Hernâni Monteiro, 4200-319 Porto, Portugal
| | - L Santos
- Faculty of Medicine of the University of Porto, Alameda Hernâni Monteiro, 4200-319 Porto, Portugal; Infectious Diseases Department, Centro Hospitalar Universitário de São João, Alameda Hernâni Monteiro, 4200-319 Porto, Portugal
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Phinikaridou A, Lavin B, Lacerda S, Andia M, Rashid I, Botnar R. Tropoelastin: A New Imaging Biomarker Of Dysfunctional Extracellular Matrix Remodelling In Atherosclerosis And Aortic Aneurysm. Atherosclerosis 2019. [DOI: 10.1016/j.atherosclerosis.2019.06.142] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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23
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Affiliation(s)
- Eva Toth
- Centre de Biophysique Moléculaire, CNRS, Orléans (France)
| | - Sara Lacerda
- Centre de Biophysique Moléculaire, CNRS, Orléans (France)
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24
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Abstract
Background Elastolysis and ineffective elastogenesis favor the accumulation of tropoelastin, rather than cross-linked elastin, in atherosclerotic plaques. We developed gadolinium-labeled tropoelastin-specific magnetic resonance contrast agents (Gd-TESMAs) for tropoelastin imaging in animal models. Methods and Results Two peptides, VVGSPSAQDEASPLS and YPDHVQYTHY were selected to target tropoelastin. In vitro binding, relaxivity, and biodistribution experiments enabled characterization of the probes and selecting the best candidate for in vivo MRI. MRI was performed in atherosclerotic apolipoprotein E-deficient (ApoE-/-) mice and New Zealand white rabbits with stable and rupture-prone plaques using Gd-TESMA. Additionally, human carotid endarterectomy specimens were imaged ex vivo. The VVGSPSAQDEASPLS-based probe discriminated between tropoelastin and cross-linked elastin (64±7% vs 1±2%, P=0.001), had high in vitro relaxivity in solution (r1-free=11.7±0.6mM-1s-1, r1-bound to tropoelastin = 44±1mM-1s-1) and favorable pharmacokinetics. In vivo mice vascular enhancement (4wks=0.13±0.007mm2, 8wks=0.22±0.01mm2, 12wks=0.33±0.01mm2, P<0.001) and R1 relaxation rate (4wks=0.90±0.01 s-1, 8wks=1.40±0.03 s-1, 12wks=1.87±0.04s-1, P<0.001) increased with atherosclerosis progression after Gd-TESMA injection. Conversely, statin-treated (0.13±0.01mm2, R1 =1.37±0.03s-1) and control (0.10±0.005mm2, R1 =0.87±0.05s-1) mice showed less enhancement. Rupture-prone rabbit plaques had higher R1 relaxation rate compared with stale plaques (R1=2.26±0.1s-1vs R1=1.43±0.02s-1, P=0.001), after administration of Gd-TESMA that allowed detection of rupture-prone plaques with high sensitivity (84.4%) and specificity (92.3%). Increased vascular R1 relaxation rate was observed in carotid endarterectomy plaques after soaking (R1pre= 1.1±0.26 s-1 vs R1post= 3.0±0.1s-1, P=0.01). Ex vivo analyses confirmed the MRI findings and showed uptake of the contrast agent to be specific for tropoelastin. Conclusions MRI of tropoelastin provides a novel biomarker for atherosclerotic plaque progression and instability.
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Affiliation(s)
- Alkystis Phinikaridou
- School of Biomedical Engineering Imaging Sciences, King's College London, London, UK.,BHF Centre of Excellence, Cardiovascular Division, King's College London, London, UK
| | - Sara Lacerda
- School of Biomedical Engineering Imaging Sciences, King's College London, London, UK.,BHF Centre of Excellence, Cardiovascular Division, King's College London, London, UK
| | - Begoña Lavin
- School of Biomedical Engineering Imaging Sciences, King's College London, London, UK.,BHF Centre of Excellence, Cardiovascular Division, King's College London, London, UK
| | - Marcelo E Andia
- School of Biomedical Engineering Imaging Sciences, King's College London, London, UK.,Radiology Department, School of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Alberto Smith
- Academic Department of Vascular Surgery, Cardiovascular Division, King's College London, London, UK
| | - Prakash Saha
- Academic Department of Vascular Surgery, Cardiovascular Division, King's College London, London, UK
| | - René M Botnar
- School of Biomedical Engineering Imaging Sciences, King's College London, London, UK.,BHF Centre of Excellence, Cardiovascular Division, King's College London, London, UK.,Wellcome Trust and EPSRC Medical Engineering Center, King's College London, UK.,Pontificia Universidad Católica de Chile, Escuela de Ingeniería, Santiago, Chile
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25
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Malikidogo KP, Da Silva I, Morfin JF, Lacerda S, Barantin L, Sauvage T, Sobilo J, Lerondel S, Tóth É, Bonnet CS. A cocktail of 165Er(iii) and Gd(iii) complexes for quantitative detection of zinc using SPECT and MRI. Chem Commun (Camb) 2018; 54:7597-7600. [DOI: 10.1039/c8cc03407a] [Citation(s) in RCA: 11] [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: 01/03/2023]
Abstract
Quantitative zinc determination by nuclear and MR imaging using two Ln3+ complexes, including purified 165Er3+, indispensable for metal ion quantification.
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Affiliation(s)
- Kyangwi P. Malikidogo
- Centre de Biophysique Moléculaire
- CNRS UPR 4301
- Université d’Orléans
- Rue Charles Sadron
- F-45071 Orléans 2
| | - Isidro Da Silva
- CEMHTI
- CNRS UPR3079
- Université d’Orléans
- F-45071 Orléans 2
- France
| | - Jean-François Morfin
- Centre de Biophysique Moléculaire
- CNRS UPR 4301
- Université d’Orléans
- Rue Charles Sadron
- F-45071 Orléans 2
| | - Sara Lacerda
- Centre de Biophysique Moléculaire
- CNRS UPR 4301
- Université d’Orléans
- Rue Charles Sadron
- F-45071 Orléans 2
| | | | - Thierry Sauvage
- CEMHTI
- CNRS UPR3079
- Université d’Orléans
- F-45071 Orléans 2
- France
| | - Julien Sobilo
- Centre d’Imagerie du petit Animal
- PHENOMIN-TAAM
- CNRS UPS44
- F-45071 Orléans 2
- France
| | - Stéphanie Lerondel
- Centre d’Imagerie du petit Animal
- PHENOMIN-TAAM
- CNRS UPS44
- F-45071 Orléans 2
- France
| | - Éva Tóth
- Centre de Biophysique Moléculaire
- CNRS UPR 4301
- Université d’Orléans
- Rue Charles Sadron
- F-45071 Orléans 2
| | - Célia S. Bonnet
- Centre de Biophysique Moléculaire
- CNRS UPR 4301
- Université d’Orléans
- Rue Charles Sadron
- F-45071 Orléans 2
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26
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Lacerda S, Tóth É. Lanthanide Complexes in Molecular Magnetic Resonance Imaging and Theranostics. ChemMedChem 2017; 12:883-894. [DOI: 10.1002/cmdc.201700210] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2017] [Revised: 05/03/2017] [Indexed: 01/08/2023]
Affiliation(s)
- Sara Lacerda
- Centre de Biophysique Moléculaire, CNRS UPR4301; Université d'Orléans; rue Charles Sadron 45071 Orléans France
| | - Éva Tóth
- Centre de Biophysique Moléculaire, CNRS UPR4301; Université d'Orléans; rue Charles Sadron 45071 Orléans France
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27
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Li H, Harriss BI, Phinikaridou A, Lacerda S, Ramniceanu G, Doan BT, Ho KL, Chan CF, Lo WS, Botnar RM, Lan R, Richard C, Law GL, Long NJ, Wong KL. Gadolinium and Platinum in Tandem: Real-time Multi-Modal Monitoring of Drug Delivery by MRI and Fluorescence Imaging. Nanotheranostics 2017; 1:186-195. [PMID: 29071187 PMCID: PMC5646715 DOI: 10.7150/ntno.18619] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [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: 12/06/2016] [Accepted: 04/11/2017] [Indexed: 12/25/2022] Open
Abstract
A novel dual-imaging cisplatin-carrying molecular cargo capable of performing simultaneous optical and MR imaging is reported herein. This long-lasting MRI contrast agent (r1 relaxivity of 23.4 mM-1s-1 at 3T, 25 oC) is a photo-activated cisplatin prodrug (PtGdL) which enables real-time monitoring of anti-cancer efficacy. PtGdL is a model for monitoring the drug delivery and anti-cancer efficacy by MRI with a much longer retention time (24 hours) in several organs such as renal cortex and spleen than GdDOTA and its motif control GdL. Upon complete release of cisplatin, all PtGdL is converted to GdL enabling subsequent MRI analyses of therapy efficacy within its reasonably short clearance time of 4 hours. There is also responsive fluorescence enhancement for monitoring by photon-excitation.
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Affiliation(s)
- Hongguang Li
- Department of Chemistry, Hong Kong Baptist University, Kowloon Tong, Kowloon, Hong Kong SAR
| | - Bethany I Harriss
- Department of Chemistry, Imperial College London, South Kensington Campus, London SW7 2AZ, UK
| | - Alkystis Phinikaridou
- King's College London, Division of Imaging Sciences, Lambeth Wing, St Thomas' Hospital London SE1 7EH
| | - Sara Lacerda
- King's College London, Division of Imaging Sciences, Lambeth Wing, St Thomas' Hospital London SE1 7EH
| | - Gregory Ramniceanu
- Unité de Technologies Chimiques et Biologiques pour la Santé (UTCBS); CNRS UMR 8258; Inserm U 1022; Université Paris Descartes, Sorbonne Paris Cité, Faculté des Sciences Pharmaceutiques et Biologiques, 75006 Paris, France.,Chimie-ParisTech, PSL, 75005 Paris, France
| | - Bich-Thuy Doan
- Unité de Technologies Chimiques et Biologiques pour la Santé (UTCBS); CNRS UMR 8258; Inserm U 1022; Université Paris Descartes, Sorbonne Paris Cité, Faculté des Sciences Pharmaceutiques et Biologiques, 75006 Paris, France.,Chimie-ParisTech, PSL, 75005 Paris, France
| | - Ka-Lok Ho
- Department of Chemistry, Hong Kong Baptist University, Kowloon Tong, Kowloon, Hong Kong SAR
| | - Chi-Fai Chan
- Department of Chemistry, Hong Kong Baptist University, Kowloon Tong, Kowloon, Hong Kong SAR.,Department of Applied Biology and Chemical Technology, Hong Kong Polytechnic University, Hung Hom, Hong Kong SAR
| | - Wai-Sum Lo
- Department of Applied Biology and Chemical Technology, Hong Kong Polytechnic University, Hung Hom, Hong Kong SAR
| | - René M Botnar
- King's College London, Division of Imaging Sciences, Lambeth Wing, St Thomas' Hospital London SE1 7EH
| | - Rongfeng Lan
- Department of Chemistry, Hong Kong Baptist University, Kowloon Tong, Kowloon, Hong Kong SAR
| | - Cyrille Richard
- Unité de Technologies Chimiques et Biologiques pour la Santé (UTCBS); CNRS UMR 8258; Inserm U 1022; Université Paris Descartes, Sorbonne Paris Cité, Faculté des Sciences Pharmaceutiques et Biologiques, 75006 Paris, France.,Chimie-ParisTech, PSL, 75005 Paris, France
| | - Ga-Lai Law
- Department of Applied Biology and Chemical Technology, Hong Kong Polytechnic University, Hung Hom, Hong Kong SAR
| | - Nicholas J Long
- Department of Chemistry, Imperial College London, South Kensington Campus, London SW7 2AZ, UK
| | - Ka-Leung Wong
- Department of Chemistry, Hong Kong Baptist University, Kowloon Tong, Kowloon, Hong Kong SAR
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Abstract
Aggregation of misfolded proteins and progressive polymerization of otherwise soluble proteins is a common hallmark of several highly debilitating and increasingly prevalent diseases, including amyotrophic lateral sclerosis, cerebral amyloid angiopathy, type II diabetes and Parkinson's, Huntington's and Alzheimer's diseases.
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Affiliation(s)
- S. Lacerda
- Centre de Biophysique Moléculaire
- CNRS
- UPR 4301
- Université d'Orléans
- 45071 Orléans Cedex 2
| | - J.-F. Morfin
- Centre de Biophysique Moléculaire
- CNRS
- UPR 4301
- Université d'Orléans
- 45071 Orléans Cedex 2
| | - C. F. G. C. Geraldes
- Department of Life Sciences
- Faculty of Sciences and Technology
- University of Coimbra
- 3000-393 Coimbra
- Portugal
| | - É. Tóth
- Centre de Biophysique Moléculaire
- CNRS
- UPR 4301
- Université d'Orléans
- 45071 Orléans Cedex 2
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29
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He J, Bonnet CS, Eliseeva SV, Lacerda S, Chauvin T, Retailleau P, Szeremeta F, Badet B, Petoud S, Tóth É, Durand P. Prototypes of Lanthanide(III) Agents Responsive to Enzymatic Activities in Three Complementary Imaging Modalities: Visible/Near-Infrared Luminescence, PARACEST-, and T1-MRI. J Am Chem Soc 2016; 138:2913-6. [PMID: 26727374 DOI: 10.1021/jacs.5b12084] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
We report first prototypes of responsive lanthanide(III) complexes that can be monitored independently in three complementary imaging modalities. Through the appropriate choice of lanthanide(III) cations, the same reactive ligand can be used to form complexes providing detection by (i) visible (Tb(3+)) and near-infrared (Yb(3+)) luminescence, (ii) PARACEST- (Tb(3+), Yb(3+)), or (iii) T1-weighted (Gd(3+)) MRI. The use of lanthanide(III) ions of different natures for these imaging modalities induces only a minor change in the structure of complexes that are therefore expected to have a single biodistribution and cytotoxicity.
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Affiliation(s)
- Jiefang He
- Institut de Chimie des Substances Naturelles, CNRS UPR 2301, Université Paris-Saclay , 1, av.de la Terrasse, 91198 Gif-sur-Yvette, France
| | - Célia S Bonnet
- Centre de Biophysique Moléculaire, CNRS UPR 4301, Université d'Orléans , Rue Charles Sadron, F-45071 Orléans 2, France
| | - Svetlana V Eliseeva
- Centre de Biophysique Moléculaire, CNRS UPR 4301, Université d'Orléans , Rue Charles Sadron, F-45071 Orléans 2, France
| | - Sara Lacerda
- Centre de Biophysique Moléculaire, CNRS UPR 4301, Université d'Orléans , Rue Charles Sadron, F-45071 Orléans 2, France
| | - Thomas Chauvin
- Centre de Biophysique Moléculaire, CNRS UPR 4301, Université d'Orléans , Rue Charles Sadron, F-45071 Orléans 2, France
| | - Pascal Retailleau
- Institut de Chimie des Substances Naturelles, CNRS UPR 2301, Université Paris-Saclay , 1, av.de la Terrasse, 91198 Gif-sur-Yvette, France
| | - Frederic Szeremeta
- Centre de Biophysique Moléculaire, CNRS UPR 4301, Université d'Orléans , Rue Charles Sadron, F-45071 Orléans 2, France
| | - Bernard Badet
- Institut de Chimie des Substances Naturelles, CNRS UPR 2301, Université Paris-Saclay , 1, av.de la Terrasse, 91198 Gif-sur-Yvette, France
| | - Stéphane Petoud
- Centre de Biophysique Moléculaire, CNRS UPR 4301, Université d'Orléans , Rue Charles Sadron, F-45071 Orléans 2, France
| | - Éva Tóth
- Centre de Biophysique Moléculaire, CNRS UPR 4301, Université d'Orléans , Rue Charles Sadron, F-45071 Orléans 2, France
| | - Philippe Durand
- Institut de Chimie des Substances Naturelles, CNRS UPR 2301, Université Paris-Saclay , 1, av.de la Terrasse, 91198 Gif-sur-Yvette, France
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Phinikaridou A, Lacerda S, Andia ME, Botnar R. Development of a tropoelastin-binding MR contrast agent for in vivo imaging of impaired elastogenesis in atherosclerosis. J Cardiovasc Magn Reson 2015. [PMCID: PMC4328333 DOI: 10.1186/1532-429x-17-s1-o102] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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Martins AF, Dias DM, Morfin JF, Lacerda S, Laurents DV, Tóth É, Geraldes CFGC. Interaction of PiB-Derivative Metal Complexes with Beta-Amyloid Peptides: Selective Recognition of the Aggregated Forms. Chemistry 2015; 21:5413-22. [DOI: 10.1002/chem.201406152] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2014] [Indexed: 01/03/2023]
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Botnar RM, Wiethoff AJ, Ebersberger U, Lacerda S, Blume U, Warley A, Jansen CHP, Onthank DC, Cesati RR, Razavi R, Marber MS, Hamm B, Schaeffter T, Robinson SP, Makowski MR. In vivo assessment of aortic aneurysm wall integrity using elastin-specific molecular magnetic resonance imaging. Circ Cardiovasc Imaging 2014; 7:679-89. [PMID: 24871347 DOI: 10.1161/circimaging.113.001131] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
BACKGROUND The incidence of abdominal aortic aneurysms (AAAs) has increased during the last decades. However, there is still controversy about the management of medium-sized AAAs. Therefore, novel biomarkers, besides aneurysmal diameter, are needed to assess aortic wall integrity and risk of rupture. Elastin is the key protein for maintaining aortic wall tensile strength and stability. The progressive breakdown of structural proteins, in particular, medial elastin, is responsible for the inability of the aortic wall to withstand intraluminal hemodynamic forces. Here, we evaluate the usefulness of elastin-specific molecular MRI for the in vivo characterization of AAAs. METHODS AND RESULTS To induce AAAs, ApoE(-/-) mice were infused with angiotensin-II. An elastin-specific magnetic resonance molecular imaging agent (ESMA) was administered after 1, 2, 3, and 4 weeks of angiotensin-II infusion to assess elastin composition of the aorta (n=8 per group). The high signal provided by ESMA allowed for imaging with high spatial resolution, resulting in an accurate assessment of ruptured elastic laminae and the compensatory expression of elastic fibers. In vivo contrast-to-noise ratios and R1-relaxation rates after ESMA administration were in good agreement with ex vivo histomorphometry (Elastica van Gieson stain) and gadolinium concentrations determined by inductively coupled plasma mass spectroscopy. Electron microscopy confirmed colocalization of ESMA with elastic fibers. CONCLUSIONS Changes in elastin content could be readily delineated and quantified at different stages of AAAs by elastin-specific molecular magnetic resonance imaging. ESMA-MRI offers potential for the noninvasive detection of the aortic rupture site prior to dilation of the aorta and the subsequent in vivo monitoring of compensatory repair processes during the progression of AAAs.
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Affiliation(s)
- René M Botnar
- From the Division of Imaging Sciences (R.M.B., A.J.W., S.L., U.B., C.H.P.J., R.R., T.S., M.R.M.), BHF Centre of Excellence (R.M.B., S.L., R.R., M.S.M., T.S., M.R.M.), Cardiovascular Division (M.S.M.), Centre for Ultrastructural Imaging (A.W.), Wellcome Trust and EPSRC Medical Engineering Center (R.M.B., S.L., R.R., T.S.), and NIHR Biomedical Research Centre (R.M.B., S.L., R.R., M.S.M., T.S.), King's College London, London, United Kingdom; Philips Healthcare, Guildford, United Kingdom (A.J.W.); Lantheus Medical Imaging, North Billerica, MA (D.C.O., R.R.C., S.P.R.); Department of Cardiology and Intensive Care Medicine, Heart Center Munich-Bogenhausen, Munich, Germany (U.E.); and Department of Radiology, Charite, Berlin, Germany (B.H., M.R.M.)
| | - Andrea J Wiethoff
- From the Division of Imaging Sciences (R.M.B., A.J.W., S.L., U.B., C.H.P.J., R.R., T.S., M.R.M.), BHF Centre of Excellence (R.M.B., S.L., R.R., M.S.M., T.S., M.R.M.), Cardiovascular Division (M.S.M.), Centre for Ultrastructural Imaging (A.W.), Wellcome Trust and EPSRC Medical Engineering Center (R.M.B., S.L., R.R., T.S.), and NIHR Biomedical Research Centre (R.M.B., S.L., R.R., M.S.M., T.S.), King's College London, London, United Kingdom; Philips Healthcare, Guildford, United Kingdom (A.J.W.); Lantheus Medical Imaging, North Billerica, MA (D.C.O., R.R.C., S.P.R.); Department of Cardiology and Intensive Care Medicine, Heart Center Munich-Bogenhausen, Munich, Germany (U.E.); and Department of Radiology, Charite, Berlin, Germany (B.H., M.R.M.)
| | - Ullrich Ebersberger
- From the Division of Imaging Sciences (R.M.B., A.J.W., S.L., U.B., C.H.P.J., R.R., T.S., M.R.M.), BHF Centre of Excellence (R.M.B., S.L., R.R., M.S.M., T.S., M.R.M.), Cardiovascular Division (M.S.M.), Centre for Ultrastructural Imaging (A.W.), Wellcome Trust and EPSRC Medical Engineering Center (R.M.B., S.L., R.R., T.S.), and NIHR Biomedical Research Centre (R.M.B., S.L., R.R., M.S.M., T.S.), King's College London, London, United Kingdom; Philips Healthcare, Guildford, United Kingdom (A.J.W.); Lantheus Medical Imaging, North Billerica, MA (D.C.O., R.R.C., S.P.R.); Department of Cardiology and Intensive Care Medicine, Heart Center Munich-Bogenhausen, Munich, Germany (U.E.); and Department of Radiology, Charite, Berlin, Germany (B.H., M.R.M.)
| | - Sara Lacerda
- From the Division of Imaging Sciences (R.M.B., A.J.W., S.L., U.B., C.H.P.J., R.R., T.S., M.R.M.), BHF Centre of Excellence (R.M.B., S.L., R.R., M.S.M., T.S., M.R.M.), Cardiovascular Division (M.S.M.), Centre for Ultrastructural Imaging (A.W.), Wellcome Trust and EPSRC Medical Engineering Center (R.M.B., S.L., R.R., T.S.), and NIHR Biomedical Research Centre (R.M.B., S.L., R.R., M.S.M., T.S.), King's College London, London, United Kingdom; Philips Healthcare, Guildford, United Kingdom (A.J.W.); Lantheus Medical Imaging, North Billerica, MA (D.C.O., R.R.C., S.P.R.); Department of Cardiology and Intensive Care Medicine, Heart Center Munich-Bogenhausen, Munich, Germany (U.E.); and Department of Radiology, Charite, Berlin, Germany (B.H., M.R.M.)
| | - Ulrike Blume
- From the Division of Imaging Sciences (R.M.B., A.J.W., S.L., U.B., C.H.P.J., R.R., T.S., M.R.M.), BHF Centre of Excellence (R.M.B., S.L., R.R., M.S.M., T.S., M.R.M.), Cardiovascular Division (M.S.M.), Centre for Ultrastructural Imaging (A.W.), Wellcome Trust and EPSRC Medical Engineering Center (R.M.B., S.L., R.R., T.S.), and NIHR Biomedical Research Centre (R.M.B., S.L., R.R., M.S.M., T.S.), King's College London, London, United Kingdom; Philips Healthcare, Guildford, United Kingdom (A.J.W.); Lantheus Medical Imaging, North Billerica, MA (D.C.O., R.R.C., S.P.R.); Department of Cardiology and Intensive Care Medicine, Heart Center Munich-Bogenhausen, Munich, Germany (U.E.); and Department of Radiology, Charite, Berlin, Germany (B.H., M.R.M.)
| | - Alice Warley
- From the Division of Imaging Sciences (R.M.B., A.J.W., S.L., U.B., C.H.P.J., R.R., T.S., M.R.M.), BHF Centre of Excellence (R.M.B., S.L., R.R., M.S.M., T.S., M.R.M.), Cardiovascular Division (M.S.M.), Centre for Ultrastructural Imaging (A.W.), Wellcome Trust and EPSRC Medical Engineering Center (R.M.B., S.L., R.R., T.S.), and NIHR Biomedical Research Centre (R.M.B., S.L., R.R., M.S.M., T.S.), King's College London, London, United Kingdom; Philips Healthcare, Guildford, United Kingdom (A.J.W.); Lantheus Medical Imaging, North Billerica, MA (D.C.O., R.R.C., S.P.R.); Department of Cardiology and Intensive Care Medicine, Heart Center Munich-Bogenhausen, Munich, Germany (U.E.); and Department of Radiology, Charite, Berlin, Germany (B.H., M.R.M.)
| | - Christian H P Jansen
- From the Division of Imaging Sciences (R.M.B., A.J.W., S.L., U.B., C.H.P.J., R.R., T.S., M.R.M.), BHF Centre of Excellence (R.M.B., S.L., R.R., M.S.M., T.S., M.R.M.), Cardiovascular Division (M.S.M.), Centre for Ultrastructural Imaging (A.W.), Wellcome Trust and EPSRC Medical Engineering Center (R.M.B., S.L., R.R., T.S.), and NIHR Biomedical Research Centre (R.M.B., S.L., R.R., M.S.M., T.S.), King's College London, London, United Kingdom; Philips Healthcare, Guildford, United Kingdom (A.J.W.); Lantheus Medical Imaging, North Billerica, MA (D.C.O., R.R.C., S.P.R.); Department of Cardiology and Intensive Care Medicine, Heart Center Munich-Bogenhausen, Munich, Germany (U.E.); and Department of Radiology, Charite, Berlin, Germany (B.H., M.R.M.)
| | - David C Onthank
- From the Division of Imaging Sciences (R.M.B., A.J.W., S.L., U.B., C.H.P.J., R.R., T.S., M.R.M.), BHF Centre of Excellence (R.M.B., S.L., R.R., M.S.M., T.S., M.R.M.), Cardiovascular Division (M.S.M.), Centre for Ultrastructural Imaging (A.W.), Wellcome Trust and EPSRC Medical Engineering Center (R.M.B., S.L., R.R., T.S.), and NIHR Biomedical Research Centre (R.M.B., S.L., R.R., M.S.M., T.S.), King's College London, London, United Kingdom; Philips Healthcare, Guildford, United Kingdom (A.J.W.); Lantheus Medical Imaging, North Billerica, MA (D.C.O., R.R.C., S.P.R.); Department of Cardiology and Intensive Care Medicine, Heart Center Munich-Bogenhausen, Munich, Germany (U.E.); and Department of Radiology, Charite, Berlin, Germany (B.H., M.R.M.)
| | - Richard R Cesati
- From the Division of Imaging Sciences (R.M.B., A.J.W., S.L., U.B., C.H.P.J., R.R., T.S., M.R.M.), BHF Centre of Excellence (R.M.B., S.L., R.R., M.S.M., T.S., M.R.M.), Cardiovascular Division (M.S.M.), Centre for Ultrastructural Imaging (A.W.), Wellcome Trust and EPSRC Medical Engineering Center (R.M.B., S.L., R.R., T.S.), and NIHR Biomedical Research Centre (R.M.B., S.L., R.R., M.S.M., T.S.), King's College London, London, United Kingdom; Philips Healthcare, Guildford, United Kingdom (A.J.W.); Lantheus Medical Imaging, North Billerica, MA (D.C.O., R.R.C., S.P.R.); Department of Cardiology and Intensive Care Medicine, Heart Center Munich-Bogenhausen, Munich, Germany (U.E.); and Department of Radiology, Charite, Berlin, Germany (B.H., M.R.M.)
| | - Reza Razavi
- From the Division of Imaging Sciences (R.M.B., A.J.W., S.L., U.B., C.H.P.J., R.R., T.S., M.R.M.), BHF Centre of Excellence (R.M.B., S.L., R.R., M.S.M., T.S., M.R.M.), Cardiovascular Division (M.S.M.), Centre for Ultrastructural Imaging (A.W.), Wellcome Trust and EPSRC Medical Engineering Center (R.M.B., S.L., R.R., T.S.), and NIHR Biomedical Research Centre (R.M.B., S.L., R.R., M.S.M., T.S.), King's College London, London, United Kingdom; Philips Healthcare, Guildford, United Kingdom (A.J.W.); Lantheus Medical Imaging, North Billerica, MA (D.C.O., R.R.C., S.P.R.); Department of Cardiology and Intensive Care Medicine, Heart Center Munich-Bogenhausen, Munich, Germany (U.E.); and Department of Radiology, Charite, Berlin, Germany (B.H., M.R.M.)
| | - Michael S Marber
- From the Division of Imaging Sciences (R.M.B., A.J.W., S.L., U.B., C.H.P.J., R.R., T.S., M.R.M.), BHF Centre of Excellence (R.M.B., S.L., R.R., M.S.M., T.S., M.R.M.), Cardiovascular Division (M.S.M.), Centre for Ultrastructural Imaging (A.W.), Wellcome Trust and EPSRC Medical Engineering Center (R.M.B., S.L., R.R., T.S.), and NIHR Biomedical Research Centre (R.M.B., S.L., R.R., M.S.M., T.S.), King's College London, London, United Kingdom; Philips Healthcare, Guildford, United Kingdom (A.J.W.); Lantheus Medical Imaging, North Billerica, MA (D.C.O., R.R.C., S.P.R.); Department of Cardiology and Intensive Care Medicine, Heart Center Munich-Bogenhausen, Munich, Germany (U.E.); and Department of Radiology, Charite, Berlin, Germany (B.H., M.R.M.)
| | - Bernd Hamm
- From the Division of Imaging Sciences (R.M.B., A.J.W., S.L., U.B., C.H.P.J., R.R., T.S., M.R.M.), BHF Centre of Excellence (R.M.B., S.L., R.R., M.S.M., T.S., M.R.M.), Cardiovascular Division (M.S.M.), Centre for Ultrastructural Imaging (A.W.), Wellcome Trust and EPSRC Medical Engineering Center (R.M.B., S.L., R.R., T.S.), and NIHR Biomedical Research Centre (R.M.B., S.L., R.R., M.S.M., T.S.), King's College London, London, United Kingdom; Philips Healthcare, Guildford, United Kingdom (A.J.W.); Lantheus Medical Imaging, North Billerica, MA (D.C.O., R.R.C., S.P.R.); Department of Cardiology and Intensive Care Medicine, Heart Center Munich-Bogenhausen, Munich, Germany (U.E.); and Department of Radiology, Charite, Berlin, Germany (B.H., M.R.M.)
| | - Tobias Schaeffter
- From the Division of Imaging Sciences (R.M.B., A.J.W., S.L., U.B., C.H.P.J., R.R., T.S., M.R.M.), BHF Centre of Excellence (R.M.B., S.L., R.R., M.S.M., T.S., M.R.M.), Cardiovascular Division (M.S.M.), Centre for Ultrastructural Imaging (A.W.), Wellcome Trust and EPSRC Medical Engineering Center (R.M.B., S.L., R.R., T.S.), and NIHR Biomedical Research Centre (R.M.B., S.L., R.R., M.S.M., T.S.), King's College London, London, United Kingdom; Philips Healthcare, Guildford, United Kingdom (A.J.W.); Lantheus Medical Imaging, North Billerica, MA (D.C.O., R.R.C., S.P.R.); Department of Cardiology and Intensive Care Medicine, Heart Center Munich-Bogenhausen, Munich, Germany (U.E.); and Department of Radiology, Charite, Berlin, Germany (B.H., M.R.M.)
| | - Simon P Robinson
- From the Division of Imaging Sciences (R.M.B., A.J.W., S.L., U.B., C.H.P.J., R.R., T.S., M.R.M.), BHF Centre of Excellence (R.M.B., S.L., R.R., M.S.M., T.S., M.R.M.), Cardiovascular Division (M.S.M.), Centre for Ultrastructural Imaging (A.W.), Wellcome Trust and EPSRC Medical Engineering Center (R.M.B., S.L., R.R., T.S.), and NIHR Biomedical Research Centre (R.M.B., S.L., R.R., M.S.M., T.S.), King's College London, London, United Kingdom; Philips Healthcare, Guildford, United Kingdom (A.J.W.); Lantheus Medical Imaging, North Billerica, MA (D.C.O., R.R.C., S.P.R.); Department of Cardiology and Intensive Care Medicine, Heart Center Munich-Bogenhausen, Munich, Germany (U.E.); and Department of Radiology, Charite, Berlin, Germany (B.H., M.R.M.)
| | - Marcus R Makowski
- From the Division of Imaging Sciences (R.M.B., A.J.W., S.L., U.B., C.H.P.J., R.R., T.S., M.R.M.), BHF Centre of Excellence (R.M.B., S.L., R.R., M.S.M., T.S., M.R.M.), Cardiovascular Division (M.S.M.), Centre for Ultrastructural Imaging (A.W.), Wellcome Trust and EPSRC Medical Engineering Center (R.M.B., S.L., R.R., T.S.), and NIHR Biomedical Research Centre (R.M.B., S.L., R.R., M.S.M., T.S.), King's College London, London, United Kingdom; Philips Healthcare, Guildford, United Kingdom (A.J.W.); Lantheus Medical Imaging, North Billerica, MA (D.C.O., R.R.C., S.P.R.); Department of Cardiology and Intensive Care Medicine, Heart Center Munich-Bogenhausen, Munich, Germany (U.E.); and Department of Radiology, Charite, Berlin, Germany (B.H., M.R.M.).
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Phinikaridou A, Andia ME, Lacerda S, Lorrio S, Makowski MR, Botnar RM. Molecular MRI of atherosclerosis. Molecules 2013; 18:14042-69. [PMID: 24232739 PMCID: PMC6270261 DOI: 10.3390/molecules181114042] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2013] [Revised: 10/29/2013] [Accepted: 10/29/2013] [Indexed: 11/22/2022] Open
Abstract
Despite advances in prevention, risk assessment and treatment, coronary artery disease (CAD) remains the leading cause of morbidity and mortality in Western countries. The lion's share is due to acute coronary syndromes (ACS), which are predominantly triggered by plaque rupture or erosion and subsequent coronary thrombosis. As the majority of vulnerable plaques does not cause a significant stenosis, due to expansive remodeling, and are rather defined by their composition and biological activity, detection of vulnerable plaques with x-ray angiography has shown little success. Non-invasive vulnerable plaque detection by identifying biological features that have been associated with plaque progression, destabilization and rupture may therefore be more appropriate and may allow earlier detection, more aggressive treatment and monitoring of treatment response. MR molecular imaging with target specific molecular probes has shown great promise for the noninvasive in vivo visualization of biological processes at the molecular and cellular level in animals and humans. Compared to other imaging modalities; MRI can provide excellent spatial resolution; high soft tissue contrast and has the ability to simultaneously image anatomy; function as well as biological tissue composition and activity.
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Affiliation(s)
- Alkystis Phinikaridou
- Division of Imaging Sciences and Biomedical Engineering, King’s College London, 4th Floor, Lambeth Wing, St Thomas’ Hospital, London SE1 7EH, UK; E-Mails: (A.P.); (M.E.A.); (S.L.); (S.L.); (M.R.M.)
| | - Marcelo E. Andia
- Division of Imaging Sciences and Biomedical Engineering, King’s College London, 4th Floor, Lambeth Wing, St Thomas’ Hospital, London SE1 7EH, UK; E-Mails: (A.P.); (M.E.A.); (S.L.); (S.L.); (M.R.M.)
- Radiology Department, School of Medicine, Pontificia Universidad Catolica de Chile, Santiago 8331150, Chile
| | - Sara Lacerda
- Division of Imaging Sciences and Biomedical Engineering, King’s College London, 4th Floor, Lambeth Wing, St Thomas’ Hospital, London SE1 7EH, UK; E-Mails: (A.P.); (M.E.A.); (S.L.); (S.L.); (M.R.M.)
| | - Silvia Lorrio
- Division of Imaging Sciences and Biomedical Engineering, King’s College London, 4th Floor, Lambeth Wing, St Thomas’ Hospital, London SE1 7EH, UK; E-Mails: (A.P.); (M.E.A.); (S.L.); (S.L.); (M.R.M.)
| | - Marcus R. Makowski
- Division of Imaging Sciences and Biomedical Engineering, King’s College London, 4th Floor, Lambeth Wing, St Thomas’ Hospital, London SE1 7EH, UK; E-Mails: (A.P.); (M.E.A.); (S.L.); (S.L.); (M.R.M.)
- Department of Radiology, Charite, Berlin 10117, Germany
| | - René M. Botnar
- Division of Imaging Sciences and Biomedical Engineering, King’s College London, 4th Floor, Lambeth Wing, St Thomas’ Hospital, London SE1 7EH, UK; E-Mails: (A.P.); (M.E.A.); (S.L.); (S.L.); (M.R.M.)
- Wellcome Trust and ESPRC Medical Engineering Center, King’s College London, London SE1 7EH, UK
- BHF Centre of Excellence, King’s College London, London SE1 7EH, UK
- NIHR Biomedical Research Centre, King’s College London, London SE1 7EH, UK
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Lacerda S, Bonnet CS, Pallier A, Villette S, Foucher F, Westall F, Buron F, Suzenet F, Pichon C, Petoud S, Tóth É. Lanthanide-based, near-infrared luminescent and magnetic lipoparticles: monitoring particle integrity. Small 2013; 9:2662-2666. [PMID: 23554181 DOI: 10.1002/smll.201201923] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/07/2012] [Revised: 11/12/2012] [Indexed: 06/02/2023]
Affiliation(s)
- Sara Lacerda
- Centre de Biophysique Moléculaire, CNRS UPR 4301, Rue Charles Sadron, 45071 Orléans Cedex, France
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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] [What about the content of this article? (0)] [Affiliation(s)] [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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Hilgenfeld R, Zhu L, Pumpor K, Kusov Y, George S, Peters T, Biet T, Lacerda S, Tan J. Structure-based discovery of antivirals targeting the proteases of RNA viruses. Acta Crystallogr A 2010. [DOI: 10.1107/s0108767310099253] [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: 11/10/2022] Open
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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] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Marques F, Gano L, Campello MP, Lacerda S, Santos I. Biological evaluation of 153Sm and 166Ho complexes with tetraazamacrocycles containing methylcarboxylate and/or methylphosphonate pendant arms. RADIOCHIM ACTA 2009. [DOI: 10.1524/ract.2007.95.6.335] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
153Sm and 166Ho complexes with two series of tetraazamacrocyclic ligands containing methylcarboxylate and/or methylphosphonate pendant arms were synthesized and their charge, lipophilicity, protein binding and in vitro and in vivo behaviour evaluated. The first series has the same backbone, a 14-membered tetraazamacrocycle containing a pyridine unit with different pendant arms, namely methylcarboxylates (ac3py14) or methylphosphonates (MeP2py14 and P3py14). The second series comprises 12- to 14-membered tetraazamacrocycles having methylcarboxylates and/or methylphosphonates as pendant arms (trans-DO2A2P, TRITA, TRITP, TETA and TETP). The 153Sm/166Ho complexes with the 14-membered tetraazamacrocycles containing the pyridine unit are neutral, hydrophilic, have a significant plasmatic protein binding, are unstable in vivo and present a slow rate of radioactivity excretion and high hepatic retention. 153Sm/166Ho complexes with the 12- to 14-membered tetraazamacrocycles are quantitatively prepared, except those with TETP. These complexes are hydrophilic, have an overall negative charge and present a medium to low plasmatic protein binding.
The 153Sm/166Ho- trans-DO2A2P, 153Sm/166Ho-TRITA and 166Ho-TRITP complexes are stable in vitro and in vivo, presenting a rapid clearance from main organs and a high rate of whole body radioactivity excretion. Biological profile of 153Sm/166Ho-TRITA complexes makes them promising candidates for therapy when conjugated to a biomolecule, while 166Ho-TRITP is potentially useful for bone targeting due to its considerable uptake by bone.
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Campello MP, Marques F, Gano L, Lacerda S, Santos I. Radiochemical and biological behaviour of 153Sm and 166Ho complexes anchored by a novel bis(methylphosphonate) tetraazamacrocycle. RADIOCHIM ACTA 2009. [DOI: 10.1524/ract.2007.95.6.329] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
The novel bis(methylphosphonate) 2,2′-[4,10-bis(phosphonomethyl)-1,4,7,10-tetraazacyclododecane-1,7-diyl] diacetic acid, trans-H6DO2A2P, has been synthesized and characterized by multinuclear NMR spectroscopy (1H, 13C and 31P). 153Sm and 166Ho complexes with trans-H6DO2A2P have been prepared in high yield using a 1:2 metal to ligand molar ratio at 70 °C, pH 8−9. These complexes are hydrophilic, negatively charged and stable in vitro under physiological solutions, up to 48 h. They present a low plasmatic protein binding and some in vitro hydroxyapatite adsorption, mainly for 166Ho-trans-DO2A2P. Both complexes are stable in vivo, have a fast tissue clearance from most organs and a rapid total excretion from whole animal body. Moderate bone uptake was also observed but the accumulated radioactivity rapidly decreases with time.
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Lacerda S, Campello MP, Marques F, Gano L, Kubíček V, Fousková P, Tóth É, Santos I. A novel tetraazamacrocycle bearing a thiol pendant arm for labeling biomolecules with radiolanthanides. Dalton Trans 2009:4509-18. [DOI: 10.1039/b820375j] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
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Lacerda S, Campello MP, Santos IC, Santos I, Delgado R. Study of the cyclen derivative 2-[1,4,7,10-tetraazacyclododecan-1-yl]-ethanethiol and its complexation behaviour towards d-transition metal ions. Polyhedron 2007. [DOI: 10.1016/j.poly.2007.04.037] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Gano L, Marques F, Campello MP, Balbina M, Lacerda S, Santos I. Radiolanthanide complexes with tetraazamacrocycles bearing methylphosphonate pendant arms as bone seeking agents. Q J Nucl Med Mol Imaging 2007; 51:6-15. [PMID: 17372568] [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] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
AIM Radiolanthanide complexes with ligands bearing phosphonate groups have demonstrated their usefulness as bone seeking agents. Herein, we report on the synthesis of 153Sm and 166Ho complexes with 12- to 14-membered macrocycles containing different number of methylphosphonate pendant arms and their in vitro and in vivo evaluation in order to assess the effect of the cavity size and type of appended arms on their biological behavior. METHODS Radioactive macrocycle complexes were prepared by reaction of (153)Sm/(166)Ho nitrates with four different tetraazamacrocycles bearing methylphosphonate groups. Radiochemical behavior, in vitro stability and charge of complexes were studied by chromatography and electrophoresis. The lipophilicity, plasmatic protein binding and adsorption onto hydroxyapatite (HA) were evaluated by in vitro assays. Biodistribution was assessed in CD-1 mice. Radiolabeling efficiency depends both on radionuclide and ligand structure. All the complexes are hydrophilic with an overall negative charge and relatively low protein binding. High in vitro stability in human serum and adsorption onto HA was found for all the complexes. RESULTS Biodistribution and in vivo stability studies have demonstrated promising biological profile for targeted radiotherapy, namely a rapid tissue clearance from most organs and rapid total excretion. Additionally, 166Ho-tritp has a high bone uptake, which led to high bone/ blood and bone/muscle ratios. CONCLUSIONS Our results clearly demonstrate that 12- and 13-membered macrocyclic ligands led to stable complexes with biological profile adequate to radionuclide therapy. The favorable in vivo behavior highlights the interest to further investigate these or closely related complexes to be used as bone seeking agents.
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Affiliation(s)
- L Gano
- Technological and Nuclear Institute, Sacavém, Portugal.
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Marques F, Gano L, Paula Campello M, Lacerda S, Santos I, Lima LMP, Costa J, Antunes P, Delgado R. 13- and 14-membered macrocyclic ligands containing methylcarboxylate or methylphosphonate pendant arms: chemical and biological evaluation of their (153)Sm and (166)Ho complexes as potential agents for therapy or bone pain palliation. J Inorg Biochem 2006; 100:270-80. [PMID: 16387365 DOI: 10.1016/j.jinorgbio.2005.11.011] [Citation(s) in RCA: 56] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2005] [Revised: 11/17/2005] [Accepted: 11/18/2005] [Indexed: 11/22/2022]
Abstract
The stability constants of La(3+), Sm(3+) and Ho(3+) complexes with 13- and 14-membered macrocycles having methylcarboxylate (trita and teta) or methylphosphonate (tritp and tetp) arms were determined. All the ligands were labelled with (153)Sm and (166)Ho in order to evaluate the effect of the macrocyclic cavity size and type of appended arms on their in vitro and in vivo behaviour. The radiolabelling efficiency was found to be higher than 98% for all the complexes, except for those of tetp. All radiocomplexes studied are hydrophilic with an overall negative charge and low plasmatic protein binding. Good in vitro stability in physiological media and human serum was found for all complexes, except the (153)Sm/(166)Ho-teta, which are unstable in phosphate buffer (pH 7.4). In vitro hydroxyapatite (HA) adsorption studies indicated that (153)Sm/(166)Ho-tritp complexes bind to HA having the (166)Ho complex the highest degree of adsorption (>80%, 10 mg). Biodistribution studies in mice demonstrated that (153)Sm/(166)Ho-trita complexes have a fast tissue clearance with more than 95% of the injected activity excreted after 2 h, value that is comparable to the corresponding dota complexes. In contrast, the (153)Sm-teta complex has a significantly lower total excretion. (153)Sm/(166)Ho-tritp complexes are retained by the bone, particularly (166)Ho-tritp that has 5-6% (% I.D./g) bone uptake and also a high rate of total excretion. Thus, these studies support the potential interest of (153)Sm/(166)Ho-trita complexes for therapy when conjugated to a biomolecule and the potential usefulness of the (166)Ho-tritp complex in bone pain palliation.
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Affiliation(s)
- Fernanda Marques
- Instituto Tecnológico e Nuclear, Estrada Nacional 10, Apartado 21, 2686-953 Sacavém, Portugal
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Lacerda S, Campello MP, Santos IC, Santos I, Delgado R. A N,N′-diacetate benzodioxotetraazamacrocycle and its transition metal complexes. Polyhedron 2005. [DOI: 10.1016/j.poly.2004.12.008] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Marques F, Paulo A, Campello MP, Lacerda S, Vitor RF, Gano L, Delgado R, Santos I. Radiopharmaceuticals for targeted radiotherapy. Radiat Prot Dosimetry 2005; 116:601-4. [PMID: 16604708 DOI: 10.1093/rpd/nci251] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
This work intends to find specific radiopharmaceuticals for cancer therapy based on beta (153Sm and 166Ho) or Auger (99Tc(m)) emitter radionuclides, using cyclic and acyclic polyamines as bifunctional chelators. These chelators are designed to allow the binding of a tumour seeking biomolecule and/or a DNA intercalator. The cyclic amines, such as 1,4,7,10-tetraazacyclododecane-1,4,7,10-tetraacetic acid, 1,4,8,11-tetraazacyclotetradecane-1,4,8,11-tetraacetic acid and 1,4,7,10-tetraazacyclotridecane-1,4,7,10-tetraacetic acid, were radiolabelled with 153Sm and 166Ho. The radiochemical and biological behaviour of the resulting complexes were evaluated in order to assess their potential as building blocks for the attachment of selected biomolecules, with the aim of further applying them for the development of specific therapeutic radiopharmaceuticals. Novel pyrazolyldiamines, bearing a DNA intercalating anthracenyl fragment, were also explored to synthesize radioactive complexes with the fac-[99Tc(m)(CO)]3]+ moiety. The identity of these 99Tc(m) tricarbonyl complexes was confirmed by high-performance liquid chromatography comparison with rhenium congeners fully characterized. By including a DNA intercalator into the chelator framework, we expect to induce more efficient and selective damage to the DNA of cancer cells by the action of the short-range Auger electrons emitted by 99Tc(m).
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Affiliation(s)
- Fernanda Marques
- Departamento de Química, Instituto Tecnológico e Nuclear, EN 10, Apartado 21, 2686-953 Sacavém, Portugal.
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