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Markiewicz KH, Marmuse L, Mounsamy M, Billotey C, Destarac M, Mingotaud C, Marty JD. Assembly of Poly(vinylphosphonic acid)-Based Double Hydrophilic Block Copolymers by Gadolinium Ions for the Formation of Highly Stable MRI Contrast Agents. ACS Macro Lett 2022; 11:1319-1324. [PMID: 36343111 DOI: 10.1021/acsmacrolett.2c00489] [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: 11/09/2022]
Abstract
Mixing double-hydrophilic block copolymers containing a poly(vinylphosphonic acid) block with gadolinium ions in water leads to the spontaneous formation of polymeric nanoparticles. With an average diameter near 20 nm, the nanoparticles are stable after dilution or change of pH and ionic strength. High magnetic relaxivities were measured in vitro, and in vivo magnetic resonance imaging on rats demonstrates the high potential of such polymeric assemblies.
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Affiliation(s)
- Karolina H Markiewicz
- Laboratoire des IMRCP, Université de Toulouse, CNRS UMR 5623, Université Paul Sabatier, 118, route de Narbonne, 31062 Toulouse, Cedex 9, France.,Faculty of Chemistry, University of Bialystok, Ciolkowskiego 1K, 15-245 Bialystok, Poland
| | - Laurence Marmuse
- EMR 3738 Ciblage Thérapeutique en Oncologie, Université de Lyon, Université Jean Monnet, Hospices Civils de Lyon, 42023 Saint-Etienne, Cedex 2, France
| | - Margaux Mounsamy
- Laboratoire des IMRCP, Université de Toulouse, CNRS UMR 5623, Université Paul Sabatier, 118, route de Narbonne, 31062 Toulouse, Cedex 9, France
| | - Claire Billotey
- EMR 3738 Ciblage Thérapeutique en Oncologie, Université de Lyon, Université Jean Monnet, Hospices Civils de Lyon, 42023 Saint-Etienne, Cedex 2, France
| | - Mathias Destarac
- Laboratoire des IMRCP, Université de Toulouse, CNRS UMR 5623, Université Paul Sabatier, 118, route de Narbonne, 31062 Toulouse, Cedex 9, France
| | - Christophe Mingotaud
- Laboratoire des IMRCP, Université de Toulouse, CNRS UMR 5623, Université Paul Sabatier, 118, route de Narbonne, 31062 Toulouse, Cedex 9, France
| | - Jean-Daniel Marty
- Laboratoire des IMRCP, Université de Toulouse, CNRS UMR 5623, Université Paul Sabatier, 118, route de Narbonne, 31062 Toulouse, Cedex 9, France
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Charignon E, Bouché M, Clave-Darcissac C, Dahm G, Ichim G, Clotagatide A, Mertani HC, Telouk P, Caramel J, Diaz JJ, Bellemin-Laponnaz S, Bouvet P, Billotey C. In Cellulo Evaluation of the Therapeutic Potential of NHC Platinum Compounds in Metastatic Cutaneous Melanoma. Int J Mol Sci 2020; 21:E7826. [PMID: 33105692 PMCID: PMC7659946 DOI: 10.3390/ijms21217826] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [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: 09/07/2020] [Revised: 10/08/2020] [Accepted: 10/19/2020] [Indexed: 02/02/2023] Open
Abstract
We describe here the evaluation of the cytotoxic efficacy of two platinum (II) complexes bearing an N-heterocyclic carbene (NHC) ligand, a pyridine ligand and bromide or iodide ligands on a panel of human metastatic cutaneous melanoma cell lines representing different genetic subsets including BRAF-inhibitor-resistant cell lines, namely A375, SK-MEL-28, MeWo, HMCB, A375-R, SK-MEL-5-R and 501MEL-R. Cisplatin and dacarbazine were also studied for comparison purposes. Remarkably, the iodine-labelled Pt-NHC complex strongly inhibited proliferation of all tested melanoma cells after 1-h exposure, likely due to its rapid uptake by melanoma cells. The mechanism of this inhibitory activity involves the formation of DNA double-strand breaks and apoptosis. Considering the intrinsic chemoresistance of metastatic melanoma cells of current systemic treatments, these findings are promising and could give research opportunities in the future to improve the prognosis of patients suffering from unresectable metastatic melanoma that are not eligible or that do not respond to the most effective drugs available to date, namely BRAF inhibitors and the anti-PD-1 monoclonal antibody (mAb).
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Affiliation(s)
- Elsa Charignon
- Hospices Civils de Lyon, EA3738-Therapeutic Targeting in Oncology, Université Jean Monnet-Université Claude Bernard Lyon1, 165 Chemin du Grand Revoyet, CEDEX, 69921 Oullins, France; (E.C.); (C.C.-D.); (A.C.)
- INSERM 1052, CNRS 5286, Centre Léon Bérard, Centre de Recherche en Cancérologie de Lyon, Université de Lyon, Université Claude Bernard Lyon1, CEDEX 08, 69373 Lyon, France; (H.C.M.); (J.C.); (J.-J.D.); (P.B.)
| | - Mathilde Bouché
- Institut de Physique et Chimie des Matériaux de Strasbourg, Université de Strasbourg-CNRS UMR7504, Strasbourg, Bâtiment 69, 23 Rue du Loess, 67200 Strasbourg, France; (M.B.); (G.D.); (S.B.-L.)
| | - Caroline Clave-Darcissac
- Hospices Civils de Lyon, EA3738-Therapeutic Targeting in Oncology, Université Jean Monnet-Université Claude Bernard Lyon1, 165 Chemin du Grand Revoyet, CEDEX, 69921 Oullins, France; (E.C.); (C.C.-D.); (A.C.)
- Hôpital Nord, Département de Pharmacie, Centre Hospitalier Universitaire de Saint-Etienne, Avenue Albert Raimond, 42270 Saint-Priest, France
| | - Georges Dahm
- Institut de Physique et Chimie des Matériaux de Strasbourg, Université de Strasbourg-CNRS UMR7504, Strasbourg, Bâtiment 69, 23 Rue du Loess, 67200 Strasbourg, France; (M.B.); (G.D.); (S.B.-L.)
| | - Gabriel Ichim
- Cancer Cell Death Laboratory, part of LabEx DEVweCAN, Cancer Initiation and Tumoral Cell Identity Department, Centre de Recherche en Cancérologie de Lyon, 69008 Lyon, France;
| | - Anthony Clotagatide
- Hospices Civils de Lyon, EA3738-Therapeutic Targeting in Oncology, Université Jean Monnet-Université Claude Bernard Lyon1, 165 Chemin du Grand Revoyet, CEDEX, 69921 Oullins, France; (E.C.); (C.C.-D.); (A.C.)
- Hôpital Nord, Département de Pharmacie, Centre Hospitalier Universitaire de Saint-Etienne, Avenue Albert Raimond, 42270 Saint-Priest, France
| | - Hichem C. Mertani
- INSERM 1052, CNRS 5286, Centre Léon Bérard, Centre de Recherche en Cancérologie de Lyon, Université de Lyon, Université Claude Bernard Lyon1, CEDEX 08, 69373 Lyon, France; (H.C.M.); (J.C.); (J.-J.D.); (P.B.)
| | - Philippe Telouk
- Laboratoire de Géologie de Lyon Terre, Planètes, Université de Lyon, Environnement-ENS-UCBL-CNRS, UMR CNRS 5276 (CNRS, ENS, Université Lyon1), École Normale Supérieure de Lyon, 9 rue du Vercors, CEDEX 07, 69364 Lyon, France;
| | - Julie Caramel
- INSERM 1052, CNRS 5286, Centre Léon Bérard, Centre de Recherche en Cancérologie de Lyon, Université de Lyon, Université Claude Bernard Lyon1, CEDEX 08, 69373 Lyon, France; (H.C.M.); (J.C.); (J.-J.D.); (P.B.)
| | - Jean-Jacques Diaz
- INSERM 1052, CNRS 5286, Centre Léon Bérard, Centre de Recherche en Cancérologie de Lyon, Université de Lyon, Université Claude Bernard Lyon1, CEDEX 08, 69373 Lyon, France; (H.C.M.); (J.C.); (J.-J.D.); (P.B.)
| | - Stéphane Bellemin-Laponnaz
- Institut de Physique et Chimie des Matériaux de Strasbourg, Université de Strasbourg-CNRS UMR7504, Strasbourg, Bâtiment 69, 23 Rue du Loess, 67200 Strasbourg, France; (M.B.); (G.D.); (S.B.-L.)
| | - Philippe Bouvet
- INSERM 1052, CNRS 5286, Centre Léon Bérard, Centre de Recherche en Cancérologie de Lyon, Université de Lyon, Université Claude Bernard Lyon1, CEDEX 08, 69373 Lyon, France; (H.C.M.); (J.C.); (J.-J.D.); (P.B.)
- École Normale Supérieure de Lyon, Université de Lyon, 9 rue du Vercors, CEDEX 07, 69364 Lyon, France
| | - Claire Billotey
- INSERM 1052, CNRS 5286, Centre Léon Bérard, Centre de Recherche en Cancérologie de Lyon, Université de Lyon, Université Claude Bernard Lyon1, CEDEX 08, 69373 Lyon, France; (H.C.M.); (J.C.); (J.-J.D.); (P.B.)
- UFR de Médecine, Campus Santé Innovations, Université de Lyon, Université Jean Monnet, 10 rue de Marandière, 42270 Saint-Priest en Jarez, France
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Yon M, Billotey C, Marty JD. Gadolinium-based contrast agents: From gadolinium complexes to colloidal systems. Int J Pharm 2019; 569:118577. [DOI: 10.1016/j.ijpharm.2019.118577] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2019] [Revised: 07/16/2019] [Accepted: 07/25/2019] [Indexed: 01/22/2023]
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Kostopoulou A, Brintakis K, Fragogeorgi E, Anthousi A, Manna L, Begin-Colin S, Billotey C, Ranella A, Loudos G, Athanassakis I, Lappas A. Iron Oxide Colloidal Nanoclusters as Theranostic Vehicles and Their Interactions at the Cellular Level. Nanomaterials (Basel) 2018; 8:E315. [PMID: 29747449 PMCID: PMC5977329 DOI: 10.3390/nano8050315] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [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: 04/16/2018] [Revised: 05/04/2018] [Accepted: 05/04/2018] [Indexed: 01/10/2023]
Abstract
Advances in surfactant-assisted chemical approaches have led the way for the exploitation of nanoscale inorganic particles in medical diagnosis and treatment. In this field, magnetically-driven multimodal nanotools that perform both detection and therapy, well-designed in size, shape and composition, are highly advantageous. Such a theranostic material—which entails the controlled assembly of smaller (maghemite) nanocrystals in a secondary motif that is highly dispersible in aqueous media—is discussed here. These surface functionalized, pomegranate-like ferrimagnetic nanoclusters (40⁻85 nm) are made of nanocrystal subunits that show a remarkable magnetic resonance imaging contrast efficiency, which is better than that of the superparamagnetic contrast agent Endorem©. Going beyond this attribute and with their demonstrated low cytotoxicity in hand, we examine the critical interaction of such nanoprobes with cells at different physiological environments. The time-dependent in vivo scintigraphic imaging of mice experimental models, combined with a biodistribution study, revealed the accumulation of nanoclusters in the spleen and liver. Moreover, the in vitro proliferation of spleen cells and cytokine production witnessed a size-selective regulation of immune system cells, inferring that smaller clusters induce mainly inflammatory activities, while larger ones induce anti-inflammatory actions. The preliminary findings corroborate that the modular chemistry of magnetic iron oxide nanoclusters stimulates unexplored pathways that could be driven to alter their function in favor of healthcare.
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Affiliation(s)
- Athanasia Kostopoulou
- Institute of Electronic Structure and Laser, Foundation for the Research and Technology, Hellas, Vassilika Vouton, 711 10 Heraklion, Greece.
| | - Konstantinos Brintakis
- Institute of Electronic Structure and Laser, Foundation for the Research and Technology, Hellas, Vassilika Vouton, 711 10 Heraklion, Greece.
| | - Eirini Fragogeorgi
- Institute of Nuclear & Radiological Sciences, Technology, Energy & Safety, NCSR "Demokritos", 153 41 Aghia Paraskevi, Athens, Greece.
| | - Amalia Anthousi
- Department of Biology, University of Crete, Vassilika Vouton, 710 03 Heraklion, Greece.
| | - Liberato Manna
- Istituto Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy.
| | - Sylvie Begin-Colin
- Université de Strasbourg, CNRS, Institut de Physique et Chimie des Matériaux de Strasbourg, UMR 7504, F-67034 Strasbourg, France.
| | - Claire Billotey
- Université de Lyon, Université Jean Monnet, EA 3738, Ciblage Thérapeutique en Oncologie, UJM-UCBL-HCL, Hôpital E. Herriot, 5 place d'Arsonval, 69437 Lyon CEDEX 03, France.
| | - Anthi Ranella
- Institute of Electronic Structure and Laser, Foundation for the Research and Technology, Hellas, Vassilika Vouton, 711 10 Heraklion, Greece.
| | - George Loudos
- Bioemission Technology Solutions, Alexandras 116, 117 42 Athens, Greece.
- Department of Biomedical Engineering, Technological Educational Institute, 122 10 Egaleo, Athens, Greece.
| | - Irene Athanassakis
- Department of Biology, University of Crete, Vassilika Vouton, 710 03 Heraklion, Greece.
| | - Alexandros Lappas
- Institute of Electronic Structure and Laser, Foundation for the Research and Technology, Hellas, Vassilika Vouton, 711 10 Heraklion, Greece.
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Walter A, Garofalo A, Bonazza P, Meyer F, Martinez H, Fleutot S, Billotey C, Taleb J, Felder-Flesch D, Begin-Colin S. Effect of the Functionalization Process on the Colloidal, Magnetic Resonance Imaging, and Bioelimination Properties of Mono- or Bisphosphonate-Anchored Dendronized Iron Oxide Nanoparticles. Chempluschem 2017; 82:647-659. [DOI: 10.1002/cplu.201700049] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2017] [Revised: 03/27/2017] [Indexed: 01/09/2023]
Affiliation(s)
- Aurélie Walter
- Institut de Physique et Chimie des Matériaux de Strasbourg (IPCMS), UMR 7504, CNRS; Université de Strasbourg; 23, rue du Loess, BP 43 67034 Strasbourg Cedex 2 France
| | - Antonio Garofalo
- Institut de Physique et Chimie des Matériaux de Strasbourg (IPCMS), UMR 7504, CNRS; Université de Strasbourg; 23, rue du Loess, BP 43 67034 Strasbourg Cedex 2 France
| | - Pauline Bonazza
- Université de Lyon; Université Jean Monnet; Equipe Mixte de Recherche 3738 “Ciblage Thérapeutique en Oncologie”, Bâtiment 10- Locaux IMTHERNAT, Hôpital Edouard Herriot, 5 place d'Arsonval; 69437 Lyon cedex 03 France
| | - Florent Meyer
- Université de Strasbourg, Inserm UMR 1121 Biomatériaux et Bioingénierie); Université de Strasbourg; 11, rue Humann 67000 Strasbourg Cedex France
| | - Hervé Martinez
- IPREM-UMR CNRS 5254; Université de Pau et des Pays de l'Adour; Hélioparc Pau-Pyrénées, 2 Av du Président Angot 64053 Pau Cedex 9 France
| | - Solenne Fleutot
- Institut de Physique et Chimie des Matériaux de Strasbourg (IPCMS), UMR 7504, CNRS; Université de Strasbourg; 23, rue du Loess, BP 43 67034 Strasbourg Cedex 2 France
| | - Claire Billotey
- Université de Lyon; Université Jean Monnet; Equipe Mixte de Recherche 3738 “Ciblage Thérapeutique en Oncologie”, Bâtiment 10- Locaux IMTHERNAT, Hôpital Edouard Herriot, 5 place d'Arsonval; 69437 Lyon cedex 03 France
| | - Jacqueline Taleb
- Université de Lyon; Université Jean Monnet; Equipe Mixte de Recherche 3738 “Ciblage Thérapeutique en Oncologie”, Bâtiment 10- Locaux IMTHERNAT, Hôpital Edouard Herriot, 5 place d'Arsonval; 69437 Lyon cedex 03 France
| | - Delphine Felder-Flesch
- Institut de Physique et Chimie des Matériaux de Strasbourg (IPCMS), UMR 7504, CNRS; Université de Strasbourg; 23, rue du Loess, BP 43 67034 Strasbourg Cedex 2 France
| | - Sylvie Begin-Colin
- Institut de Physique et Chimie des Matériaux de Strasbourg (IPCMS), UMR 7504, CNRS; Université de Strasbourg; 23, rue du Loess, BP 43 67034 Strasbourg Cedex 2 France
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Frangville C, Li Y, Billotey C, Talham DR, Taleb J, Roux P, Marty JD, Mingotaud C. Assembly of Double-Hydrophilic Block Copolymers Triggered by Gadolinium Ions: New Colloidal MRI Contrast Agents. Nano Lett 2016; 16:4069-4073. [PMID: 27224089 DOI: 10.1021/acs.nanolett.6b00664] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Mixing double-hydrophilic block copolymers containing a poly(acrylic acid) block with gadolinium ions in water leads to the spontaneous formation of polymeric nanoparticles. With an average diameter near 20 nm, the nanoparticles are exceptionally stable, even after dilution and over a large range of pH and ionic strength. High magnetic relaxivities were measured in vitro for these biocompatible colloids, and in vivo magnetic resonance imaging on rats demonstrates the potential utility of such polymeric assemblies.
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Affiliation(s)
- Camille Frangville
- Laboratoire des IMRCP, Université de Toulouse, CNRS UMR 5623, Université Paul Sabatier , 118, route de Narbonne 31062 Toulouse Cedex 9, France
| | - Yichen Li
- Department of Chemistry, University of Florida , Gainesville, Florida 32611-7200, United States
| | - Claire Billotey
- EMR 3738 Ciblage Thérapeutique en Oncologie, Université de Lyon, Université Jean Monnet , Hospices Civils de Lyon, 42023 Saint-Etienne Cedex 2, France
| | - Daniel R Talham
- Department of Chemistry, University of Florida , Gainesville, Florida 32611-7200, United States
| | - Jacqueline Taleb
- EMR 3738 Ciblage Thérapeutique en Oncologie, Université de Lyon, Université Jean Monnet , Hospices Civils de Lyon, 42023 Saint-Etienne Cedex 2, France
| | - Patrick Roux
- EMR 3738 Ciblage Thérapeutique en Oncologie, Université de Lyon, Université Jean Monnet , Hospices Civils de Lyon, 42023 Saint-Etienne Cedex 2, France
| | - Jean-Daniel Marty
- Laboratoire des IMRCP, Université de Toulouse, CNRS UMR 5623, Université Paul Sabatier , 118, route de Narbonne 31062 Toulouse Cedex 9, France
| | - Christophe Mingotaud
- Laboratoire des IMRCP, Université de Toulouse, CNRS UMR 5623, Université Paul Sabatier , 118, route de Narbonne 31062 Toulouse Cedex 9, France
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Parat A, Kryza D, Degoul F, Taleb J, Viallard C, Janier M, Garofalo A, Bonazza P, Heinrich-Balard L, Cohen R, Miot-Noirault E, Chezal JM, Billotey C, Felder-Flesch D. Radiolabeled dendritic probes as tools for high in vivo tumor targeting: application to melanoma. J Mater Chem B 2015; 3:2560-2571. [DOI: 10.1039/c5tb00235d] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A small-sized and bifunctional111In-radiolabeled dendron shows highin vivotargeting efficiency towards an intracellular target in a murine melanoma model.
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Walter A, Garofalo A, Parat A, Jouhannaud J, Pourroy G, Voirin E, Laurent S, Bonazza P, Taleb J, Billotey C, Vander Elst L, Muller RN, Begin-Colin S, Felder-Flesch D. Validation of a dendron concept to tune colloidal stability, MRI relaxivity and bioelimination of functional nanoparticles. J Mater Chem B 2015; 3:1484-1494. [DOI: 10.1039/c4tb01954g] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
A dendritic coating induces colloidal stability of nanoparticles through electrostatic and steric interactions.
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Miot-Noirault E, Vidal A, Morlieras J, Bonazza P, Auzeloux P, Besse S, Dauplat MM, Peyrode C, Degoul F, Billotey C, Lux F, Rédini F, Tillement O, Chezal JM, Kryza D, Janier M. Small rigid platforms functionalization with quaternary ammonium: Targeting extracellular matrix of chondrosarcoma. Nanomedicine: Nanotechnology, Biology and Medicine 2014; 10:1887-95. [DOI: 10.1016/j.nano.2014.06.011] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2014] [Revised: 06/04/2014] [Accepted: 06/17/2014] [Indexed: 10/25/2022]
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Miladi I, Aloy MT, Armandy E, Mowat P, Kryza D, Magné N, Tillement O, Lux F, Billotey C, Janier M, Rodriguez-Lafrasse C. Combining ultrasmall gadolinium-based nanoparticles with photon irradiation overcomes radioresistance of head and neck squamous cell carcinoma. Nanomedicine 2014; 11:247-57. [PMID: 24983891 DOI: 10.1016/j.nano.2014.06.013] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/06/2014] [Revised: 06/02/2014] [Accepted: 06/20/2014] [Indexed: 01/12/2023]
Abstract
Gadolinium based nanoparticles (GBNs, diameter 2.9±0.2nm), have promising biodistribution properties for theranostic use in-vivo. We aimed at demonstrating the radiosensitizing effect of these GBNs in experimental radioresistant human head and neck squamous cell carcinoma (SQ20B, FaDu and Cal33 cell lines). Combining 0.6mM GBNs with 250kV photon irradiation significantly decreased SQ20B cell survival, associated with an increase in non-reparable DNA double-strand breaks, the shortening of G2/M phase blockage, and the inhibition of cell proliferation, each contributing to the commitment of late apoptosis. Similarly, radiation resistance was overcome for SQ20B stem-like cells, as well as for FaDu and Cal33 cell lines. Using a SQ20B tumor-bearing mouse model, combination of GBNs with 10Gy irradiation significantly delayed tumor growth with an increase in late apoptosis and a decrease in cell proliferation. These results suggest that GBNs could be envisioned as adjuvant to radiotherapy for HNSCC tumors.
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Affiliation(s)
- Imen Miladi
- Institut Lumière Matière, UMR 5306 CNRS, Université de Lyon, Université Lyon 1, Villeurbanne cedex, France
| | - Marie-Thérèse Aloy
- Laboratoire de Radiobiologie Cellulaire et Moléculaire, EMR3738, Faculté de Médecine Lyon-Sud, Université de Lyon, Université Lyon 1, Oullins, France
| | - Emma Armandy
- Laboratoire de Radiobiologie Cellulaire et Moléculaire, EMR3738, Faculté de Médecine Lyon-Sud, Université de Lyon, Université Lyon 1, Oullins, France
| | - Pierre Mowat
- Institut Lumière Matière, UMR 5306 CNRS, Université de Lyon, Université Lyon 1, Villeurbanne cedex, France
| | - David Kryza
- Institut Lumière Matière, UMR 5306 CNRS, Université de Lyon, Université Lyon 1, Villeurbanne cedex, France; IMTHERNAT, Hôpital Edouard Herriot, Hospices Civils de Lyon, Lyon, France
| | - Nicolas Magné
- Laboratoire de Radiobiologie Cellulaire et Moléculaire, EMR3738, Faculté de Médecine Lyon-Sud, Université de Lyon, Université Lyon 1, Oullins, France
| | - Olivier Tillement
- Institut Lumière Matière, UMR 5306 CNRS, Université de Lyon, Université Lyon 1, Villeurbanne cedex, France
| | - François Lux
- Institut Lumière Matière, UMR 5306 CNRS, Université de Lyon, Université Lyon 1, Villeurbanne cedex, France
| | - Claire Billotey
- Institut Lumière Matière, UMR 5306 CNRS, Université de Lyon, Université Lyon 1, Villeurbanne cedex, France; IMTHERNAT, Hôpital Edouard Herriot, Hospices Civils de Lyon, Lyon, France
| | - Marc Janier
- Institut Lumière Matière, UMR 5306 CNRS, Université de Lyon, Université Lyon 1, Villeurbanne cedex, France; IMTHERNAT, Hôpital Edouard Herriot, Hospices Civils de Lyon, Lyon, France
| | - Claire Rodriguez-Lafrasse
- Laboratoire de Radiobiologie Cellulaire et Moléculaire, EMR3738, Faculté de Médecine Lyon-Sud, Université de Lyon, Université Lyon 1, Oullins, France; Unité Médicale d'Oncologie Moléculaire et Transfert, Hospices Civils de Lyon, Laboratoire de Biochimie et Biologie Moléculaire, Centre Hospitalier Lyon-Sud, Pierre Bénite, France.
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Miladi I, Alric C, Dufort S, Mowat P, Dutour A, Mandon C, Laurent G, Bräuer-Krisch E, Herath N, Coll JL, Dutreix M, Lux F, Bazzi R, Billotey C, Janier M, Perriat P, Le Duc G, Roux S, Tillement O. The in vivo radiosensitizing effect of gold nanoparticles based MRI contrast agents. Small 2014; 10:1116-1124. [PMID: 24659273 DOI: 10.1002/smll.201470036] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Owing to the high atomic number (Z) of gold element, the gold nanoparticles appear as very promising radiosensitizing agents. This character can be exploited for improving the selectivity of radiotherapy. However, such an improvement is possible only if irradiation is performed when the gold content is high in the tumor and low in the surrounding healthy tissue. As a result, the beneficial action of irradiation (the eradication of the tumor) should occur while the deleterious side effects of radiotherapy should be limited by sparing the healthy tissue. The location of the radiosensitizers is therefore required to initiate the radiotherapy. Designing gold nanoparticles for monitoring their distribution by magnetic resonance imaging (MRI) is an asset due to the high resolution of MRI which permits the accurate location of particles and therefore the determination of the optimal time for the irradiation. We recently demonstrated that ultrasmall gold nanoparticles coated by gadolinium chelates (Au@DTDTPA-Gd) can be followed up by MRI after intravenous injection. Herein, Au@DTDTPA and Au@DTDTPA-Gd were prepared in order to evaluate their potential for radiosensitization. Comet assays and in vivo experiments suggest that these particles appear well suited for improving the selectivity of the radiotherapy. The dose which is used for inducing similar levels of DNA alteration is divided by two when cells are incubated with the gold nanoparticles prior to the irradiation. Moreover, the increase in the lifespan of tumor bearing rats is more important when the irradiation is performed after the injection of the gold nanoparticles. In the case of treatment of rats with a brain tumor (9L gliosarcoma, a radio-resistant tumor in a radiosensitive organ), the delay between the intravenous injection and the irradiation was determined by MRI.
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Miladi I, Alric C, Dufort S, Mowat P, Dutour A, Mandon C, Laurent G, Bräuer-Krisch E, Herath N, Coll JL, Dutreix M, Lux F, Bazzi R, Billotey C, Janier M, Perriat P, Le Duc G, Roux S, Tillement O. The In Vivo Radiosensitizing Effect of Gold Nanoparticles Based MRI Contrast Agents. Small 2014; 10:1116-1124. [PMID: 24677791 DOI: 10.1002/smll.201302303] [Citation(s) in RCA: 85] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/27/2013] [Revised: 11/25/2013] [Indexed: 06/03/2023]
Abstract
Owing to the high atomic number (Z) of gold element, the gold nanoparticles appear as very promising radiosensitizing agents. This character can be exploited for improving the selectivity of radiotherapy. However, such an improvement is possible only if irradiation is performed when the gold content is high in the tumor and low in the surrounding healthy tissue. As a result, the beneficial action of irradiation (the eradication of the tumor) should occur while the deleterious side effects of radiotherapy should be limited by sparing the healthy tissue. The location of the radiosensitizers is therefore required to initiate the radiotherapy. Designing gold nanoparticles for monitoring their distribution by magnetic resonance imaging (MRI) is an asset due to the high resolution of MRI which permits the accurate location of particles and therefore the determination of the optimal time for the irradiation. We recently demonstrated that ultrasmall gold nanoparticles coated by gadolinium chelates (Au@DTDTPA-Gd) can be followed up by MRI after intravenous injection. Herein, Au@DTDTPA and Au@DTDTPA-Gd were prepared in order to evaluate their potential for radiosensitization. Comet assays and in vivo experiments suggest that these particles appear well suited for improving the selectivity of the radiotherapy. The dose which is used for inducing similar levels of DNA alteration is divided by two when cells are incubated with the gold nanoparticles prior to the irradiation. Moreover, the increase in the lifespan of tumor bearing rats is more important when the irradiation is performed after the injection of the gold nanoparticles. In the case of treatment of rats with a brain tumor (9L gliosarcoma, a radio-resistant tumor in a radiosensitive organ), the delay between the intravenous injection and the irradiation was determined by MRI.
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Affiliation(s)
- Imen Miladi
- Laboratoire de Physico-Chimie des Matériaux Luminescents, UMR 5620 CNRS - UCBL, Université de Lyon, Villeurbanne, 69622, France
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Rodriguez-Lafrasse C, Aloy M, Miladi I, Armandy E, Sancey L, Berniard A, Billotey C, Tillement O, Lux F, Perriat P, Janier M. 168: Gadolinium based nanoparticles for radiosensitization of head and neck squamous cell carcinoma. Radiother Oncol 2014. [DOI: 10.1016/s0167-8140(15)34189-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Aspord C, Laurin D, Janier MF, Mandon CA, Thivolet C, Villiers C, Mowat P, Madec AM, Tillement O, Perriat P, Louis C, Bérard F, Marche PN, Plumas J, Billotey C. Paramagnetic nanoparticles to track and quantify in vivo immune human therapeutic cells. Nanoscale 2013; 5:11409-11415. [PMID: 23838997 DOI: 10.1039/c3nr34240a] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
This study aims to investigate gadolinium-based nanoparticles (Gd-HNP) for in vitro labeling of human plasmacytoid dendritic cells (HuPDC) to allow for in vivo tracking and HuPDC quantifying using magnetic resonance imaging (MRI) following parenteral injection. Human plasmacytoid DC were labeled (LabHuPDC) with fluorescent Gd-HNP (Gd-FITC-HNP) and injected via intraperitoneal and intravenous routes in 4-5 NOD-SCID β2m(-/-)mice (treated mice = TM). Control mice (CM) were similarly injected with unlabeled HuPDC. In vivo 7 T MRI was performed 24 h later and all spleens were removed in order to measure Gd and fluorescence contents and identify HuPDC. Gd-FITC-HNP efficiently labeled HuPDC (0.05 to 0.1 pg per cell), without altering viability and activation properties. The magnetic resonance (MR) signal was exclusively due to HuPDC. The normalized MR splenic intensity for TM was significantly higher than for CM (p < 0.024), and highly correlated with the spleen Gd content (r = 0.97), and the number of HuPDC found in the spleen (r = 0.94). Gd-FITC-HNP allowed for in vivo tracking and HuPDC quantifying by means of MRI following parenteral injection, with very high sensitivity (<3000 cells per mm(3)). The safety of these new nanoparticle types must be confirmed via extensive toxicology tests including in vivo stability and biodistribution studies.
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Affiliation(s)
- Caroline Aspord
- R&D Laboratory, Etablissement Français du Sang Rhône Alpes, La Tronche, F-38701 France
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Taleb J, Janier M, Bonazza P, Roux P, Miladi I, Goutain-Majorel C, Billotey C, Kryza D. Radiation dose measurements for staff members involved in holmium-166 preclinical trial. RADIAT MEAS 2013. [DOI: 10.1016/j.radmeas.2013.08.007] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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Alric C, Miladi I, Kryza D, Taleb J, Lux F, Bazzi R, Billotey C, Janier M, Perriat P, Roux S, Tillement O. The biodistribution of gold nanoparticles designed for renal clearance. Nanoscale 2013; 5:5930-5939. [PMID: 23702968 DOI: 10.1039/c3nr00012e] [Citation(s) in RCA: 96] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Owing to their tunable optical properties and their high absorption cross-section of X- and γ-ray, gold nanostructures appear as promising agents for remotely controlled therapy. Since the efficiency of cancer therapy is not limited to the eradication of the tumour but rests also on the sparing of healthy tissue, a biodistribution study is required in order to determine whether the behaviour of the nanoparticles after intravenous injection is safe (no accumulation in healthy tissue, no uptake by phagocytic cell-rich organs (liver, spleen) and renal clearance). The biodistribution of Au@DTDTPA nanoparticles which are composed of a gold core and a DTDTPA (dithiolated polyaminocarboxylate) shell can be established by X-ray imaging (owing to the X-ray absorption of the gold core) and by magnetic resonance imaging (MRI) since the DTDTPA shell was designed for the immobilization of paramagnetic gadolinium ions. However scintigraphy appears better suited for a biodistribution study owing to a great sensitivity. The successful immobilization of radioelements ((99m)Tc, (111)In) in the DTDTPA shell, instead of gadolinium ions, renders possible the follow up of Au@DTDTPA by scintigraphy which showed that Au@DTDTPA nanoparticles exhibit a safe behaviour after intravenous injection to healthy rats.
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Affiliation(s)
- Christophe Alric
- Laboratoire de Physico-Chimie des Matériaux Luminescents, UMR 5620 CNRS - UCBL, Université de Lyon, 22 Avenue Gaston Berger, 69622 Villeurbanne Cedex, France
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Aloy MT, Miladi I, Armandy E, Billotey C, Tillement O, Lux F, Perriat P, Janier M, Rodriguez-Lafrasse C. Abstract LB-104: Gadolinium-based nanoparticles sensitize head and neck carcinoma stem and nonstem cells to low and high LET radiation. Cancer Res 2013. [DOI: 10.1158/1538-7445.am2013-lb-104] [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: 11/16/2022]
Abstract
Abstract
Head and neck squamous cell carcinoma (HNSCC) is an aggressive and recurrent malignancy owing to intrinsic radioresistance and lack of induction of apoptosis. Several strategies aiming at radiosensitizing these tumors are currently being developed, one of these relying on the use of nanoparticles including high Z elements such as gadolinium (Z=64). Once delivered to the tumor, gadolinium-based nanoparticles (GBNs) should amplify the efficacy of radiotherapy through the generation of electron Auger cascades and secondary electrons.
This study aims at demonstrating the in vitro and in vivo radiosensitizing effect of sub-5 nm GBNs (composed of a core of gadolinium oxide, a shell of polysiloxane, and functionalized by diethylene triaminepentaacetic acid) in a SQ20B radioresistant HNSCC model. Owing to the crucial role of cancer stem cells in tumor initiation, disease recurrence and radioresistance, the radiosensitizing effect of GBNs was also tested in SQ20B stem-like cells.
The association of 0,6 mM GBNs with a photon or a 33.6 keV/µm carbon ion irradiation decrease significantly SQ20B cell survival. Radiosensitization goes through the increase in non-reparable DNA double-strand breaks, the shortening of G2/M phase blockage, the inhibition of cell proliferation, each contributing to the commitment into apoptosis. The combined treatment of GBNs with irradiation can also overcome the resistance of SQ20B stem-like cells.
Using an SQ20B tumor-bearing mouse model, we also demonstrate that GBNs in conjunction with photon irradiation significantly retard tumor growth compared with the radiation alone, with complete remission in some mice. Significantly, an increase in apoptosis and decrease in cell proliferation are also detected inside tumors in the combined treatment group.
These results suggest the interesting potential of GBNs in sensitizing resistant HNSCC tumors to radiotherapy and their possible contribution towards overcoming limitations of current cancer treatment.
This project was conducted under the framework of LANTHARAD (PDC019 CLARA 2010), PRRH-ETOILE and LABEX PRIMES (2012)
Citation Format: Marie-Thérèse Aloy, Imen Miladi, Emma Armandy, Claire Billotey, Olivier Tillement, François Lux, Pascal Perriat, Marc Janier, Claire Rodriguez-Lafrasse. Gadolinium-based nanoparticles sensitize head and neck carcinoma stem and nonstem cells to low and high LET radiation. [abstract]. In: Proceedings of the 104th Annual Meeting of the American Association for Cancer Research; 2013 Apr 6-10; Washington, DC. Philadelphia (PA): AACR; Cancer Res 2013;73(8 Suppl):Abstract nr LB-104. doi:10.1158/1538-7445.AM2013-LB-104
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Affiliation(s)
- Marie-Thérèse Aloy
- 1Laboratoire de Radiobiologie Cellulaire et Moléculaire EMR3738, Faculté de Médecine Lyon-Sud - Université Lyon 1, OULLINS cedex, France
| | - Imen Miladi
- 2Laboratoire de Physico-chimie des Matériaux Luminescents, UMR5620 CNRS, Université Lyon 1, Villeurbanne cedex, France
| | - Emma Armandy
- 1Laboratoire de Radiobiologie Cellulaire et Moléculaire EMR3738, Faculté de Médecine Lyon-Sud - Université Lyon 1, OULLINS cedex, France
| | - Claire Billotey
- 2Laboratoire de Physico-chimie des Matériaux Luminescents, UMR5620 CNRS, Université Lyon 1, Villeurbanne cedex, France
| | - Olivier Tillement
- 2Laboratoire de Physico-chimie des Matériaux Luminescents, UMR5620 CNRS, Université Lyon 1, Villeurbanne cedex, France
| | - François Lux
- 2Laboratoire de Physico-chimie des Matériaux Luminescents, UMR5620 CNRS, Université Lyon 1, Villeurbanne cedex, France
| | - Pascal Perriat
- 3INSA-Lyon, MATEIS CNRS UMR5510, Université Lyon 1, Villeurbanne cedex, France
| | - Marc Janier
- 2Laboratoire de Physico-chimie des Matériaux Luminescents, UMR5620 CNRS, Université Lyon 1, Villeurbanne cedex, France
| | - Claire Rodriguez-Lafrasse
- 1Laboratoire de Radiobiologie Cellulaire et Moléculaire EMR3738, Faculté de Médecine Lyon-Sud - Université Lyon 1, OULLINS cedex, France
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Ghobril C, Popa G, Parat A, Billotey C, Taleb J, Bonazza P, Begin-Colin S, Felder-Flesch D. A bisphosphonate tweezers and clickable PEGylated PAMAM dendrons for the preparation of functional iron oxide nanoparticles displaying renal and hepatobiliary elimination. Chem Commun (Camb) 2013; 49:9158-60. [DOI: 10.1039/c3cc43161d] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Basly B, Popa G, Fleutot S, Pichon BP, Garofalo A, Ghobril C, Billotey C, Berniard A, Bonazza P, Martinez H, Felder-Flesch D, Begin-Colin S. Effect of the nanoparticle synthesis method on dendronized iron oxides as MRI contrast agents. Dalton Trans 2013. [DOI: 10.1039/c2dt31788e] [Citation(s) in RCA: 65] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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Benachour H, Sève A, Bastogne T, Frochot C, Vanderesse R, Jasniewski J, Miladi I, Billotey C, Tillement O, Lux F, Barberi-Heyob M. Multifunctional Peptide-conjugated hybrid silica nanoparticles for photodynamic therapy and MRI. Theranostics 2012; 2:889-904. [PMID: 23082101 PMCID: PMC3475218 DOI: 10.7150/thno.4754] [Citation(s) in RCA: 68] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2012] [Accepted: 08/14/2012] [Indexed: 11/15/2022] Open
Abstract
Photodynamic therapy (PDT) is an emerging theranostic modality for various cancer as well as non-cancer diseases. Its efficiency is mainly based on a selective accumulation of PDT and imaging agents in tumor tissue. The vascular effect is widely accepted to play a major role in tumor eradication by PDT. To promote this vascular effect, we previously demonstrated the interest of using an active- targeting strategy targeting neuropilin-1 (NRP-1), mainly over-expressed by tumor angiogenic vessels. For an integrated vascular-targeted PDT with magnetic resonance imaging (MRI) of cancer, we developed multifunctional gadolinium-based nanoparticles consisting of a surface-localized tumor vasculature targeting NRP-1 peptide and polysiloxane nanoparticles with gadolinium chelated by DOTA derivatives on the surface and a chlorin as photosensitizer. The nanoparticles were surface-functionalized with hydrophilic DOTA chelates and also used as a scaffold for the targeting peptide grafting. In vitro investigations demonstrated the ability of multifunctional nanoparticles to preserve the photophysical properties of the encapsulated photosensitizer and to confer photosensitivity to MDA-MB-231 cancer cells related to photosensitizer concentration and light dose. Using binding test, we revealed the ability of peptide-functionalized nanoparticles to target NRP-1 recombinant protein. Importantly, after intravenous injection of the multifunctional nanoparticles in rats bearing intracranial U87 glioblastoma, a positive MRI contrast enhancement was specifically observed in tumor tissue. Real-time MRI analysis revealed the ability of the targeting peptide to confer specific intratumoral retention of the multifunctional nanoparticles.
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Miladi I, Duc GL, Kryza D, Berniard A, Mowat P, Roux S, Taleb J, Bonazza P, Perriat P, Lux F, Tillement O, Billotey C, Janier M. Biodistribution of ultra small gadolinium-based nanoparticles as theranostic agent: Application to brain tumors. J Biomater Appl 2012; 28:385-94. [DOI: 10.1177/0885328212454315] [Citation(s) in RCA: 35] [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: 12/21/2022]
Abstract
Gadolinium-based nanoparticles are novel objects with interesting physical properties, allowing their use for diagnostic and therapeutic applications. Gadolinium-based nanoparticles were imaged following intravenous injection in healthy rats and rats grafted with 9L gliosarcoma tumors using magnetic resonance imaging and scintigraphic imaging. Quantitative biodistribution using gamma-counting of each sampled organ confirmed that these nanoparticles were rapidly cleared essentially by renal excretion. Accumulation of these nanoparticles in 9L gliosarcoma tumors implanted in the rat brain was quantitated. This passive and long-duration accumulation of gadolinium-based nanoparticles in tumor, which is related to disruption of the blood–brain barrier, is in good agreement with the use of these nanoparticles as radiosensitizers for brain tumors.
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Affiliation(s)
- Imen Miladi
- Laboratoire de Physico-Chimie des Matériaux Luminescents, UMR 5620 CNRS, Université Claude Bernard Lyon 1, Villeurbanne Cedex, France
| | - Géraldine Le Duc
- European Synchrotron Radiation Facility, ID 17 Biomedical Beamline, Polygone Scientifique Louis Néel, Grenoble, France
| | - David Kryza
- Laboratoire de Physico-Chimie des Matériaux Luminescents, UMR 5620 CNRS, Université Claude Bernard Lyon 1, Villeurbanne Cedex, France
- Hospices Civils de Lyon, Service de Médecine Nucléaire, Hôpital Edouard Herriot, Lyon, France
| | - Aurélie Berniard
- Laboratoire de Physico-Chimie des Matériaux Luminescents, UMR 5620 CNRS, Université Claude Bernard Lyon 1, Villeurbanne Cedex, France
| | - Pierre Mowat
- Laboratoire de Physico-Chimie des Matériaux Luminescents, UMR 5620 CNRS, Université Claude Bernard Lyon 1, Villeurbanne Cedex, France
| | - Stéphane Roux
- Laboratoire de Physico-Chimie des Matériaux Luminescents, UMR 5620 CNRS, Université Claude Bernard Lyon 1, Villeurbanne Cedex, France
- Institut UTINAM, UMR 6213 CNRS, Université de Franche-Comté, Besançon Cedex, France
| | - Jacqueline Taleb
- Laboratoire de Physico-Chimie des Matériaux Luminescents, UMR 5620 CNRS, Université Claude Bernard Lyon 1, Villeurbanne Cedex, France
| | - Pauline Bonazza
- Laboratoire de Physico-Chimie des Matériaux Luminescents, UMR 5620 CNRS, Université Claude Bernard Lyon 1, Villeurbanne Cedex, France
| | - Pascal Perriat
- Matériaux Ingénierie et Science, UMR 5510 CNRS, Villeurbanne Cedex, France
| | - François Lux
- Laboratoire de Physico-Chimie des Matériaux Luminescents, UMR 5620 CNRS, Université Claude Bernard Lyon 1, Villeurbanne Cedex, France
| | - Olivier Tillement
- Laboratoire de Physico-Chimie des Matériaux Luminescents, UMR 5620 CNRS, Université Claude Bernard Lyon 1, Villeurbanne Cedex, France
| | - Claire Billotey
- Laboratoire de Physico-Chimie des Matériaux Luminescents, UMR 5620 CNRS, Université Claude Bernard Lyon 1, Villeurbanne Cedex, France
- Hospices Civils de Lyon, Service de Médecine Nucléaire, Hôpital Edouard Herriot, Lyon, France
| | - Marc Janier
- Laboratoire de Physico-Chimie des Matériaux Luminescents, UMR 5620 CNRS, Université Claude Bernard Lyon 1, Villeurbanne Cedex, France
- Hospices Civils de Lyon, Service de Médecine Nucléaire, Hôpital Edouard Herriot, Lyon, France
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Crozals GD, Farre C, Hantier G, Léonard D, Marquette CA, Mandon CA, Marmuse L, Louis C, Toulmé JJ, Billotey C, Janier M, Chaix C. Oligonucleotide solid-phase synthesis on fluorescent nanoparticles grafted on controlled pore glass. RSC Adv 2012. [DOI: 10.1039/c2ra22077f] [Citation(s) in RCA: 7] [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: 01/25/2023] Open
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Le Duc G, Miladi I, Alric C, Mowat P, Bräuer-Krisch E, Bouchet A, Khalil E, Billotey C, Janier M, Lux F, Epicier T, Perriat P, Roux S, Tillement O. Toward an image-guided microbeam radiation therapy using gadolinium-based nanoparticles. ACS Nano 2011; 5:9566-74. [PMID: 22040385 DOI: 10.1021/nn202797h] [Citation(s) in RCA: 161] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Ultrasmall gadolinium-based nanoparticles (GBNs) induce both a positive contrast for magnetic resonance imaging and a radiosentizing effect. The exploitation of these characteristics leads to a greater increase in lifespan of rats bearing brain tumors since the radiosensitizing effect of GBNs can be activated by X-ray microbeams when the gadolinium content is, at the same time, sufficiently high in the tumor and low in the surrounding healthy tissue. GBNs exhibit therefore an interesting potential for image-guided radiotherapy.
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Affiliation(s)
- Géraldine Le Duc
- ID17 Biomedical Beamline, European Synchrotron Radiation Facility, 6 Rue Jules Horowitz, 38000 Grenoble, France
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Lamanna G, Kueny-Stotz M, Mamlouk-Chaouachi H, Ghobril C, Basly B, Bertin A, Miladi I, Billotey C, Pourroy G, Begin-Colin S, Felder-Flesch D. Dendronized iron oxide nanoparticles for multimodal imaging. Biomaterials 2011; 32:8562-73. [DOI: 10.1016/j.biomaterials.2011.07.026] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2011] [Accepted: 07/08/2011] [Indexed: 10/17/2022]
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Kryza D, Taleb J, Janier M, Marmuse L, Miladi I, Bonazza P, Louis C, Perriat P, Roux S, Tillement O, Billotey C. Biodistribution study of nanometric hybrid gadolinium oxide particles as a multimodal SPECT/MR/optical imaging and theragnostic agent. Bioconjug Chem 2011; 22:1145-52. [PMID: 21545181 DOI: 10.1021/bc1005976] [Citation(s) in RCA: 88] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Nanometric hybrid gadolinium oxide particles (Gado-6Si-NP) for diagnostic and therapeutic applications (mean diameter 3-4 nm) were obtained by encapsulating Gd(2)O(3) cores within a polysiloxane shell, which carries organic fluorophore (Cy 5) and is derivatized by a hydrophilic carboxylic layer. As residency time in the living body and methods of waste elimination are crucial to defining a good nanoparticle candidate and moving forward with steps for validation, this study was aimed at evaluating the biodistribution of these multimodal Gado-6Si-NP in rodents. Gado-6Si-NP were imaged following intravenous injection in control Wistar rats and mice using MRI (7 T), optical fluorescent imaging, and SPECT. A clear correlation was observed among MRI, optical imaging, and SPECT regarding the renal elimination. Quantitative biodistribution using gamma-counting of each sampled organ confirmed that these nanoparticles circulated freely in the blood pool and were rapidly cleared by renal excretion without accumulation in liver and RES uptake. These results demonstrate that Gado-6Si-NP display optimal biodistribution properties, enabling them to be developed as multimodal agents for in vivo imaging and theragnostics, especially in oncological applications.
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Girard C, Hot A, Billotey C, Cathébras P, Vital Durand D, Peyramond D, Broussolle C, Ninet J. Contribution du PET scan dans le diagnostic étiologique des fièvres prolongées inexpliquées : à propos de 100 cas. Rev Med Interne 2010. [DOI: 10.1016/j.revmed.2010.10.029] [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: 11/28/2022]
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28
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Roux S, Faure AC, Mandon C, Dufort S, Rivière C, Bridot JL, Mutelet B, Marquette CA, Josserand V, Le Duc G, Le Pape A, Billotey C, Janier M, Coll JL, Perriat P, Tillement O. Multifunctional gadolinium oxide nanoparticles: towards image-guided therapy. ACTA ACUST UNITED AC 2010. [DOI: 10.2217/iim.10.5] [Citation(s) in RCA: 8] [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: 11/21/2022]
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Basly B, Felder-Flesch D, Perriat P, Billotey C, Taleb J, Pourroy G, Begin-Colin S. Dendronized iron oxide nanoparticles as contrast agents for MRI. Chem Commun (Camb) 2009; 46:985-7. [PMID: 20107672 DOI: 10.1039/b920348f] [Citation(s) in RCA: 75] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Covalent attachment, through a phosphonate anchor, of hydrophilic pegylated dendrons on iron oxide nanoparticles results in versatile, robust, and highly relaxing MRI contrast agents.
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Affiliation(s)
- Brice Basly
- IPCMS, UMR CNRS-UdS-ECPM 7504 23 rue du loess BP 43, 67034 Strasbourg, France
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Karsenty J, Hot A, Billotey C, Monard E, Mausservey C, Coppere B, Perard L, Seve P, Durieu I, Rouviere O, Ninet J. Intérêt du PET scan dans les atteintes inflammatoires de l’aorte. Rev Med Interne 2009. [DOI: 10.1016/j.revmed.2009.10.112] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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31
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Fizet J, Rivière C, Bridot JL, Charvet N, Louis C, Billotey C, Raccurt M, Morel G, Roux S, Perriat P, Tillement O. Multi-luminescent hybrid gadolinium oxide nanoparticles as potential cell labeling. J Nanosci Nanotechnol 2009; 9:5717-5725. [PMID: 19908443 DOI: 10.1166/jnn.2009.1237] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
This manuscript analyses the use of newly developed hybrid gadolinium oxide nanoparticles as cell-labeling tracers. The nanoparticles are core-shell particles composed of a core of gadolinium oxide of [2-4] nm and a protecting shell of polysiloxane [1-3 nm] where different organic dyes (fluoresceine isothiocyanate (FITC) or rhodamine B isothiocyanate (RBITC)) are embedded. They are functionalized with poly(ethylene glycol)bis(carboxymethyl) to ensure their colloidal stability in biological buffers. These particles are potential multi-labeling tracers (magnetic and optical). In this paper, we show by optical imaging that they can be efficiently internalized in cells without cell alteration. The in-vitro uptake of the nanoparticles was followed in two cell lines (human fibroblasts and a human adenocarnima cell lines MCF7 cells). Nanoparticles distribution within cells was analysed by confocal analysis, and gadolinium concentration within cells was quantified by mass spectrometry (ICP-MS analysis). Nanoparticles uptake is found to be fast and efficient for both cell lines, with fluorescent labeling visible after 10 min of incubation whatever the nature of the fluorophore. The fluorescent intensity is mainly found as concentrated dots in the perinuclear region of the cells and decreases with the number of days in culture, but is still easily detectable after 3 days in culture. No significant effect on cell growth was detected. Finally, we show in this study the protective effect of the polysiloxane layer: encapsulation of RBITC within the polysiloxane shell, leads to a better photostability of this low cost dye than Cy3 and even reach a level comparable to Alexa 595. With their high photostability and long-lasting contrast properties, these hybrid luminescent nanoparticles appears thus as a versatile solution to assess multiple cell fate both in in-vitro cell model as well as in-vivo.
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Affiliation(s)
- J Fizet
- Université de Lyon, Lyon F-69003, France
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Seve P, Billotey C, Janier M, Grange JD, Broussolle C, Kodjikian L. Fluorodeoxyglucose Positron Emission Tomography for the Diagnosis of Sarcoidosis in Patients with Unexplained Chronic Uveitis. Ocul Immunol Inflamm 2009; 17:179-84. [DOI: 10.1080/09273940902788221] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Bridot JL, Dayde D, Rivière C, Mandon C, Billotey C, Lerondel S, Sabattier R, Cartron G, Le Pape A, Blondiaux G, Janier M, Perriat P, Roux S, Tillement O. Hybrid gadolinium oxide nanoparticles combining imaging and therapy. ACTA ACUST UNITED AC 2009. [DOI: 10.1039/b815836c] [Citation(s) in RCA: 61] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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Faure AC, Barbillon G, Ou M, Ledoux G, Tillement O, Roux S, Fabregue D, Descamps A, Bijeon JL, Marquette CA, Billotey C, Jamois C, Benyatou T, Perriat P. Core/shell nanoparticles for multiple biological detection with enhanced sensitivity and kinetics. Nanotechnology 2008; 19:485103. [PMID: 21836293 DOI: 10.1088/0957-4484/19/48/485103] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
The paper shows the different methods to attach a molecule to detect streptavidin to a dielectric particle made of a rare-earth oxide core and a polysiloxane shell containing fluorescein. First, the detection of streptavidin binding on a biotinylated gold substrate can be achieved in three ways: the shift of the surface plasmon resonance of the substrate and the double luminescence (organic and inorganic) of the core/shell particle. Second, these detections are efficient even after elimination upon thermal annealing of all the undesired molecules that skew the assays. Finally, the particle that ballasts the protein enhances its binding kinetics and increases the localized surface plasmon resonance shift that detects the binding.
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Affiliation(s)
- Anne-Charlotte Faure
- Université de Lyon, Université Lyon 1, CNRS UMR 5620, Laboratoire de Physico-Chimie des Matériaux Luminescents (LPCML), F-69622 Villeurbanne Cedex, France
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Bernard C, Kodjikian L, Billotey C, Dufour JF, Broussolle C, Seve P. Tomographie par émission de positons pour le diagnostic de sarcoïdose chez les patients présentant une uvéite chronique inexpliquée. Rev Med Interne 2008. [DOI: 10.1016/j.revmed.2008.03.095] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Alric C, Taleb J, Le Duc G, Mandon C, Billotey C, Le Meur-Herland A, Brochard T, Vocanson F, Janier M, Perriat P, Roux S, Tillement O. Gadolinium chelate coated gold nanoparticles as contrast agents for both X-ray computed tomography and magnetic resonance imaging. J Am Chem Soc 2008; 130:5908-15. [PMID: 18407638 DOI: 10.1021/ja078176p] [Citation(s) in RCA: 352] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Functionalized gold nanoparticles were applied as contrast agents for both in vivo X-ray and magnetic resonance imaging. These particles were obtained by encapsulating gold cores within a multilayered organic shell which is composed of gadolinium chelates bound to each other through disulfide bonds. The contrast enhancement in MRI stems from the presence of gadolinium ions which are entrapped in the organic shell, whereas the gold core provides a strong X-ray absorption. This study revealed that these particles suited for dual modality imaging freely circulate in the blood vessels without undesirable accumulation in the lungs, spleen, and liver.
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Affiliation(s)
- Christophe Alric
- Laboratoire de Physico-Chimie des Matériaux Luminescents, UMR 5620 CNRS-Université Claude Bernard Lyon 1, 69622 Villeurbanne Cedex, France
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Kodjikian L, Billotey C, Grange J, Broussolle C, Seve P. 165 Tomographe à émission de positons comme outil diagnostique dans les uvéites inexpliquées. J Fr Ophtalmol 2008. [DOI: 10.1016/s0181-5512(08)70761-7] [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: 11/29/2022]
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Bridot JL, Dayde D, Faure AC, Laurent S, Rivière C, Billotey C, Hiba B, Janier M, Josserand V, Coll JL, Vander Elst L, Muller R, Sabattier R, Lerondel S, Lepape A, Perriat P, Roux S, Tillement O. CMR 2007: 7.07: Hybrid gadolinium oxide nanoparticles: contrast agents combining diagnosis and therapy. Contrast Media Mol Imaging 2008. [DOI: 10.1002/cmmi.192] [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] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Roux S, Alric C, Taleb J, Mandon C, Billotey C, Brochard T, Le Duc G, Debouttière PJ, Vocanson F, Janier M, Perriat P, Tillement O. CMR 2007: 8.03: Gold nanoparticles as contrast agents for MRI and X-ray computed tomography imaging. Contrast Media Mol Imaging 2007. [DOI: 10.1002/cmmi.195] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Dufour JF, Billotey C, Streichenberger N, Bouhour F, Broussolle C, Sève P. Apport de la tomographie par émission de positons pour le diagnostic de sarcoïdose au cours d'une myopathie granulomateuse. Rev Med Interne 2007; 28:568-70. [PMID: 17445952 DOI: 10.1016/j.revmed.2007.03.003] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [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: 11/15/2006] [Accepted: 03/06/2007] [Indexed: 10/23/2022]
Abstract
INTRODUCTION Granulomatous myositis is a rare condition that has been described in association with sarcoidosis. In the absence of sarcoidosis or other underlying disease, a diagnosis of isolated granulomatous myositis is considered. OBSERVATION A 61-year-old African man presented with progressive limitation in running and proximal atrophy of the lower limbs for the past year. Quadricipital muscle biopsy revealed non-caseating epithelioid granulomas and multinuclear giant cells. Whole body fluorodeoxyglucose positron emission tomography ((18)FDG-PET) revealed hypermetabolic activity of salivary and lachrymal glands, and mild hypermetabolism in the mediastinal lymph nodes. Minor salivary gland biopsy was consistent with sarcoidosis. CONCLUSION To our knowledge, this is the first reported case of sarcoid myopathy demonstrating the diagnostic usefulness of (18)FDG-PET.
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Affiliation(s)
- J-F Dufour
- Service de médecine interne, Hôtel-Dieu, 1, place de l'Hôpital, 69288 Lyon cedex 02, France
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Varron L, Kodjikian L, Billotey C, Grange JD, Gomard EM, Broussolle C, Seve P. Apport de la tomographie par émission de positons au 18-Fluorodéoxyglucose pour le diagnostic d'uvéite sarcoïdosique chez les patients avec tomodensitométrie thoracique normale. Rev Med Interne 2007. [DOI: 10.1016/j.revmed.2007.03.128] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Bridot JL, Faure AC, Laurent S, Rivière C, Billotey C, Hiba B, Janier M, Josserand V, Coll JL, Elst LV, Muller R, Roux S, Perriat P, Tillement O. Hybrid Gadolinium Oxide Nanoparticles: Multimodal Contrast Agents for in Vivo Imaging. J Am Chem Soc 2007; 129:5076-84. [PMID: 17397154 DOI: 10.1021/ja068356j] [Citation(s) in RCA: 471] [Impact Index Per Article: 27.7] [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: 11/28/2022]
Abstract
Luminescent hybrid nanoparticles with a paramagnetic Gd2O3 core were applied as contrast agents for both in vivo fluorescence and magnetic resonance imaging. These hybrid particles were obtained by encapsulating Gd2O3 cores within a polysiloxane shell which carries organic fluorophores and carboxylated PEG covalently tethered to the inorganic network. Longitudinal proton relaxivities of these particles are higher than the positive contrast agents like Gd-DOTA which are commonly used for clinical magnetic resonance imaging. Moreover these particles can be followed up by fluorescence imaging. This study revealed that these particles suited for dual modality imaging freely circulate in the blood vessels without undesirable accumulation in lungs and liver.
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Affiliation(s)
- Jean-Luc Bridot
- Laboratoire de Physico-Chimie des Matériaux Luminescents, UMR 5620 CNRS-Université Claude Bernard Lyon 1, 69622 Villeurbanne Cedex, France
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Sève P, Billotey C, Broussolle C, Dumontet C, Mackey JR. The role of 2-deoxy-2-[F-18]fluoro-D-glucose positron emission tomography in disseminated carcinoma of unknown primary site. Cancer 2007; 109:292-9. [PMID: 17167760 DOI: 10.1002/cncr.22410] [Citation(s) in RCA: 120] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
BACKGROUND The authors conducted a comprehensive review of the efficacy of 2-deoxy-2-[F-18]fluoro-D-glucose positron emission tomography (FDG-PET) in the detection of primary tumors in patients with disseminated carcinoma of unknown primary site. METHODS Ten studies (involving a total of 221 patients) tat were published between 1998 and 2006 were reviewed. Each study evaluated the role of FDG-PET in the detection of unknown primary tumors after a conventional diagnostic workup. Although 94% of patients had a single site of metastases, the studies otherwise were very heterogeneous in the studied population, study design, and additional diagnostic workup. RESULTS In 41% of patients, FDG-PET detected primary tumors that were not apparent after conventional workup. In this group of patients, the overall sensitivity, specificity, and accuracy rates of FDG-PET in detecting unknown primary tumors were 91.9%, 81.9%, and 80.5%, respectively. FDG-PET imaging also led to the detection of previously unrecognized metastases in 37% of patients. Lung cancers represented 59% of the detected tumors. FDG-PET had a notably high false-positive rate (58.3%) in tumors of the lower digestive tract. FDG-PET altered the clinical management in 34.7% of patients. Most of those patients (53%) received specific chemotherapy for lung and pancreatic cancers; whereas 12% received specific therapy for breast, ovarian, and prostate cancers; and 14% underwent surgery with curative intent. CONCLUSIONS FDG-PET was an efficient method for detecting primary tumors that were undetected by other modalities and was sensitive for the detection of previously unrecognized metastases. FDG-PET significantly changed clinical management in approximately one-third of the patients studied.
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Affiliation(s)
- Pascal Sève
- Department of Internal Medicine, Hôtel Dieu, Hospices Civils de Lyon, Lyon, France.
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Mebazaa A, Kerob D, Toubert ME, Verola O, Servant JM, Baccard M, Billotey C, Bustamante K, Vandici FO, Basset-Seguin N, Ollivaud L, Morel P, Lebbé C. [Feasibility and technical problems of sentinel node analysis in melanoma]. ANN CHIR PLAST ESTH 2006; 52:14-23. [PMID: 17141391 DOI: 10.1016/j.anplas.2006.09.004] [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] [Received: 07/28/2005] [Accepted: 09/22/2006] [Indexed: 11/23/2022]
Abstract
BACKGROUND Development of the sentinel lymph node (SLN) biopsy the last 10 years has changed surgical approach of solid tumor treatment and particularly of melanoma. The aim of our study was to analyze in our hospital, the feasibility of the SLN biopsy technique in order to define a better prognostic classification of melanomas. PATIENTS AND METHODS Between July 1999 and October 2003, 97 patients were included in this study in our center. Criteria for inclusion were cutaneo-mucosal melanoma of Breslow >or=1,5 mm, and/or Clarck >or=IV, and/or ulceration, and/or signs of regression, before any surgical margins. RESULTS Lymphoscintigraphy (LS) identified at least 1 SLN in 94 cases/97 (97%), thus permitting intraoperative SLN mapping and sentinel node biopsy of at least 1 lymph node in 88 cases/94 (94%). Failure of the SLN procedure was noted in 9 cases: in 3 cases, no lymph node was individualized by LS, in 1 patient, intraoperative SLN mapping failed to find the previously identified SLN and in 5 cases, a SLN was identified by LS and intraoperative mapping but could not be removed because of its deep location and difficulty of dissection. In 17 patients, removal of one or two "non sentinel lymph node(s)" was (were) made by the surgeon because of its (their) suspected aspect (black or large). Among the 88 patients who had dissection of at least 1 SLN, a micrometastasis was detected by standard histological evaluation and/or immunohistochemical stains in 14 cases (16%) and into a "non SLN" in 2 cases (2,3%). The median follow up of patients was 16 months (1- 48 months). Among the 14 patients with positive SLN, 6 (43%) relapsed. The other eight were in complete remission of their melanoma with a mean follow up of 11,44 months . Among the 74 patients with negative SLN, 7 (9,5%) developed a recurrence. Among the 9 patients in whom any sentinel lymph node have been removed, 3 had a relapse (one in transit than on lymph nodes, and two on lymph nodes). CONCLUSION Our results are in accordance with the literature, and confirm the feasibility of SLN mapping and of SLN histological analysis in our center. We described in this study technical problems we encountered. Our study also show the prognostic value of this technique. However, advantage in global survey of sentinel node dissection and regional lymph node dissection in cases of micrometastases has still to be demonstrated.
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Affiliation(s)
- A Mebazaa
- Service de dermatologie-II, hôpital Saint-Louis, 1, avenue Claude-Vellefaux, 75475 Paris cedex 10, France
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Banayan S, Hot A, Janier M, Ninet J, Zurlinden O, Billotey C. Malignant mesothelioma of the peritoneum as the cause of a paraneoplastic syndrome: detection by 18F-FDG PET. Eur J Nucl Med Mol Imaging 2006; 33:751. [PMID: 16607545 DOI: 10.1007/s00259-005-0059-1] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Soraya Banayan
- Service de Médecine Nucléaire, Hôpital Edouard Herriot, Lyon, France.
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Bridot JL, Louis C, Roux S, Marquette C, Billotey C, Beuf O, Perriat P, Tillement O. CMR 2005: 13.02: Doubly luminescent gadolinium oxide nanoparticles as contrast agents for MRI. Contrast Media Mol Imaging 2006. [DOI: 10.1002/cmmi.74] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Lee E, Gazeau F, Beuf O, Bacri JC, Briguet A, Janier M, Billotey C. CMR 2005: 1.03: Analysis of hepatic uptake of anionic magnetic nanoparticles. Contrast Media Mol Imaging 2006. [DOI: 10.1002/cmmi.4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Billotey C, Aspord C, Beuf O, Piaggio E, Gazeau F, Janier MF, Thivolet C. T-cell homing to the pancreas in autoimmune mouse models of diabetes: in vivo MR imaging. Radiology 2005; 236:579-87. [PMID: 15972338 DOI: 10.1148/radiol.2362040603] [Citation(s) in RCA: 37] [Impact Index Per Article: 1.9] [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: 11/11/2022]
Abstract
PURPOSE To evaluate the efficiency of T-cell labeling with anionic magnetic nanoparticles (AMNPs) and in vivo magnetic resonance (MR) imaging monitoring of T-cell homing to the pancreas. MATERIALS AND METHODS In vivo MR images of pancreas were obtained with a 7-T MR system in 12 NOD (nonobese diabetic) mice at 11 and 20 days after injection of AMNP-loaded or unloaded T cells. Homing of loaded T cells in pancreatic lymph nodes was detected by the presence of a focal dark spot with T2* effect in a caudal area of the pancreas. Detection of loaded T cells in pancreatic islets was evaluated by comparison of histograms of MR signal intensity generated in whole pancreas in mice injected with loaded and unloaded T cells. Homing of loaded T cells was confirmed at transmission electronic microscopy (TEM). Fifty-six mice underwent all experiments. RESULTS Focal dark spots with T2* effect were observed at 11 days in all three mice injected with loaded T cells and in none of the three mice injected with unloaded T cells. At 20 days, a more diffuse negative enhancement of the whole pancreas was noticed in one mouse injected with loaded T cells than in three mice injected with unloaded T cells. Presence of loaded T cells was confirmed with TEM. In vitro and in vivo tests confirmed that survival and function were not altered by loading. CONCLUSION The ability of MR imaging to depict cell homing in living organisms at least 20 days after cell labeling was demonstrated, opening the way of follow-up in autoimmune diseases and cell therapy.
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Affiliation(s)
- Claire Billotey
- Animage-CREATIS, University Claude Bernard Lyon 1, Hôpital neurologique-CERMEP, 56 boulevard Pinel, 69394 Lyon cedex 03, France.
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Billotey C, Wilhelm C, Devaud M, Bacri JC, Bittoun J, Gazeau F. Cell internalization of anionic maghemite nanoparticles: quantitative effect on magnetic resonance imaging. Magn Reson Med 2003; 49:646-54. [PMID: 12652535 DOI: 10.1002/mrm.10418] [Citation(s) in RCA: 205] [Impact Index Per Article: 9.8] [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: 11/06/2022]
Abstract
Anionic iron oxide nanoparticles are efficiently internalized into macrophages where they concentrate within micrometric endosomes, conferring on them a high magnetic susceptibility. The uptake of anionic maghemite nanoparticles by macrophages was quantified by an electron spin resonance (ESR) experiment. MR spin-echo sequences were performed with various TEs and TRs. The contrast enhancement was compared between two types of agarose phantoms with the same equivalent ferrite concentrations but containing either dispersed isolated nanoparticles or magnetically labeled macrophages. It is shown that the intracellular confinement of maghemite nanoparticles within micrometric endosomes results in a significant decrease of the longitudinal relaxivity and a moderate decrease of the transverse relaxivity compared to the relaxivities of the dispersed isolated nanoparticles. As a consequence, the signature of endosomal magnetic labeling consists of a negative contrast on T(1)-weighted images in the whole ferrite concentration range, whereas the presence of extracellular isolated nanoparticles can result in a positive enhancement.
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Affiliation(s)
- C Billotey
- Laboratoire des Milieux Désordonnés et Hétérogènes, Université Pierre et Marie Curie, 4 Place Jussieu, 75252 Paris Cedex, France
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Wilhelm C, Billotey C, Roger J, Pons JN, Bacri JC, Gazeau F. Intracellular uptake of anionic superparamagnetic nanoparticles as a function of their surface coating. Biomaterials 2003; 24:1001-11. [PMID: 12504522 DOI: 10.1016/s0142-9612(02)00440-4] [Citation(s) in RCA: 570] [Impact Index Per Article: 27.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
A new class of superparamagnetic nanoparticles bearing negative surface charges is presented. These anionic nanoparticles show a high affinity for the cell membrane and, as a consequence, are captured by cells with an efficiency three orders of magnitude higher than the widely used dextran-coated iron oxide nanoparticles. The surface coating of anionic particle with albumin strongly reduces the non specific interactions with the plasma membrane as well as the overall cell uptake and at the same time restores the ability to induce specific interactions with targeted cells by the coadsorption on the particle surface of a specific ligand. Kinetics of cellular particle uptake for different cell lines are quantitated using two new complementary assays (Magnetophoresis and Electron Spin Resonance).
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Affiliation(s)
- C Wilhelm
- Laboratoire des Milieux Désordonnés et Hétérogènes UMR7603, Université Pierre et Marie Curie, Tour 13, Case 86, 4 place Jussieu, 75005 Paris, France
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