1
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Li M, Baumhover NJ, Liu D, Cagle BS, Boschetti F, Paulin G, Lee D, Dai Z, Obot ER, Marks BM, Okeil I, Sagastume EA, Gabr M, Pigge FC, Johnson FL, Schultz MK. Preclinical Evaluation of a Lead Specific Chelator (PSC) Conjugated to Radiopeptides for 203Pb and 212Pb-Based Theranostics. Pharmaceutics 2023; 15:414. [PMID: 36839736 PMCID: PMC9966725 DOI: 10.3390/pharmaceutics15020414] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Revised: 12/30/2022] [Accepted: 01/14/2023] [Indexed: 01/28/2023] Open
Abstract
203Pb and 212Pb have emerged as promising theranostic isotopes for image-guided α-particle radionuclide therapy for cancers. Here, we report a cyclen-based Pb specific chelator (PSC) that is conjugated to tyr3-octreotide via a PEG2 linker (PSC-PEG-T) targeting somatostatin receptor subtype 2 (SSTR2). PSC-PEG-T could be labeled efficiently to purified 212Pb at 25 °C and also to 212Bi at 80 °C. Efficient radiolabeling of mixed 212Pb and 212Bi in PSC-PEG-T was also observed at 80 °C. Post radiolabeling, stable Pb(II) and Bi(III) radiometal complexes in saline were observed after incubating [203Pb]Pb-PSC-PEG-T for 72 h and [212Bi]Bi-PSC-PEG-T for 5 h. Stable [212Pb]Pb-PSC-PEG-T and progeny [212Bi]Bi-PSC-PEG-T were identified after storage in saline for 24 h. In serum, stable radiometal/radiopeptide were observed after incubating [203Pb]Pb-PSC-PEG-T for 55 h and [212Pb]Pb-PSC-PEG-T for 24 h. In vivo biodistribution of [212Pb]Pb-PSC-PEG-T in tumor-free CD-1 Elite mice and athymic mice bearing AR42J xenografts revealed rapid tumor accumulation, excellent tumor retention and fast renal clearance of both 212Pb and 212Bi, with no in vivo redistribution of progeny 212Bi. Single-photon emission computed tomography (SPECT) imaging of [203Pb]Pb-PSC-PEG-T and [212Pb]Pb-PSC-PEG-T in mice also demonstrated comparable accumulation in AR42J xenografts and renal clearance, confirming the theranostic potential of the elementally identical 203Pb/212Pb radionuclide pair.
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Affiliation(s)
- Mengshi Li
- Viewpoint Molecular Targeting, Inc., 2500 Crosspark Road, Coralville, IA 52241, USA
| | | | - Dijie Liu
- Viewpoint Molecular Targeting, Inc., 2500 Crosspark Road, Coralville, IA 52241, USA
| | - Brianna S. Cagle
- Viewpoint Molecular Targeting, Inc., 2500 Crosspark Road, Coralville, IA 52241, USA
| | | | | | - Dongyoul Lee
- Department of Physics and Chemistry, Korea Military Academy, Seoul 01805, Republic of Korea
| | - Zhiming Dai
- Department of Chemistry, The University of Iowa, Iowa City, IA 52240, USA
| | - Ephraim R. Obot
- Viewpoint Molecular Targeting, Inc., 2500 Crosspark Road, Coralville, IA 52241, USA
| | - Brenna M. Marks
- Viewpoint Molecular Targeting, Inc., 2500 Crosspark Road, Coralville, IA 52241, USA
| | - Ibrahim Okeil
- Viewpoint Molecular Targeting, Inc., 2500 Crosspark Road, Coralville, IA 52241, USA
| | - Edwin A. Sagastume
- Viewpoint Molecular Targeting, Inc., 2500 Crosspark Road, Coralville, IA 52241, USA
| | - Moustafa Gabr
- Department of Radiology, Weill Cornell Medicine, New York, NY 10021, USA
| | | | - Frances L. Johnson
- Viewpoint Molecular Targeting, Inc., 2500 Crosspark Road, Coralville, IA 52241, USA
| | - Michael K. Schultz
- Viewpoint Molecular Targeting, Inc., 2500 Crosspark Road, Coralville, IA 52241, USA
- Department of Radiology, The University of Iowa, Iowa City, IA 52246, USA
- Department of Radiation Oncology, The University of Iowa, Iowa City, IA 52246, USA
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2
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Denat F, Poty S, Brunotte F, Simecek J, Notni J, Wester HJ, Raguin O, Boschetti F, Goncalves V, Goze C, Désogère P, Bernhard C, Moreau M, Collin B. A new family of tacn derivatives for 64Cu and 68Ga chelation. Nucl Med Biol 2019. [DOI: 10.1016/s0969-8051(19)30221-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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3
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Thakare V, Tran VL, Natuzzi M, Thomas E, Moreau M, Romieu A, Collin B, Courteau A, Vrigneaud JM, Louis C, Roux S, Boschetti F, Tillement O, Lux F, Denat F. Functionalization of theranostic AGuIX® nanoparticles for PET/MRI/optical imaging. RSC Adv 2019; 9:24811-24815. [PMID: 35528689 PMCID: PMC9073358 DOI: 10.1039/c9ra00365g] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [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] [Received: 01/15/2019] [Accepted: 08/01/2019] [Indexed: 12/16/2022] Open
Abstract
A novel trifunctional imaging probe containing a chelator of radiometal for PET, a NIR heptamethine cyanine dye, and a bioconjugatable handle, has been grafted onto AGuIX® nanoparticles via a Michael addition reaction. The resulting functionalized nanoparticles have been fully characterized, radiolabelled with 64Cu, and evaluated in a mice TSA tumor model using multimodal (PET/MRI/optical) imaging. The controlled dual functionalization of AGuIX® nanoparticles afforded trimodal imaging (PET/MRI/fluorescence) theranostic agents.![]()
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4
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Lux F, Tran VL, Thomas E, Dufort S, Rossetti F, Martini M, Truillet C, Doussineau T, Bort G, Denat F, Boschetti F, Angelovski G, Detappe A, Crémillieux Y, Mignet N, Doan BT, Larrat B, Meriaux S, Barbier E, Roux S, Fries P, Müller A, Abadjian MC, Anderson C, Canet-Soulas E, Bouziotis P, Barberi-Heyob M, Frochot C, Verry C, Balosso J, Evans M, Sidi-Boumedine J, Janier M, Butterworth K, McMahon S, Prise K, Aloy MT, Ardail D, Rodriguez-Lafrasse C, Porcel E, Lacombe S, Berbeco R, Allouch A, Perfettini JL, Chargari C, Deutsch E, Le Duc G, Tillement O. AGuIX ® from bench to bedside-Transfer of an ultrasmall theranostic gadolinium-based nanoparticle to clinical medicine. Br J Radiol 2018; 92:20180365. [PMID: 30226413 PMCID: PMC6435081 DOI: 10.1259/bjr.20180365] [Citation(s) in RCA: 68] [Impact Index Per Article: 11.3] [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: 01/05/2023] Open
Abstract
AGuIX® are sub-5 nm nanoparticles made of a polysiloxane matrix and gadolinium chelates. This nanoparticle has been recently accepted in clinical trials in association with radiotherapy. This review will summarize the principal preclinical results that have led to first in man administration. No evidence of toxicity has been observed during regulatory toxicity tests on two animal species (rodents and monkeys). Biodistributions on different animal models have shown passive uptake in tumours due to enhanced permeability and retention effect combined with renal elimination of the nanoparticles after intravenous administration. High radiosensitizing effect has been observed with different types of irradiations in vitro and in vivo on a large number of cancer types (brain, lung, melanoma, head and neck…). The review concludes with the second generation of AGuIX nanoparticles and the first preliminary results on human.
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Affiliation(s)
- François Lux
- NH TherAguix SAS, Villeurbanne, France.,Univ Lyon Université Claude Bernard Lyon 1, CNRS, Institut Lumière Matière, LYON, France
| | - Vu Long Tran
- Univ Lyon Université Claude Bernard Lyon 1, CNRS, Institut Lumière Matière, LYON, France.,Nano-H SAS, Saint-Quentin-Fallavier, France
| | - Eloïse Thomas
- Univ Lyon Université Claude Bernard Lyon 1, CNRS, Institut Lumière Matière, LYON, France
| | | | - Fabien Rossetti
- Univ Lyon Université Claude Bernard Lyon 1, CNRS, Institut Lumière Matière, LYON, France
| | - Matteo Martini
- Univ Lyon Université Claude Bernard Lyon 1, CNRS, Institut Lumière Matière, LYON, France
| | - Charles Truillet
- Imagerie Moléculaire In Vivo, Inserm, CEA, CNRS, Univ Paris Sud, Université Paris Saclay - Service Hospitalier Frédéric Joliot, Orsay, France
| | | | - Guillaume Bort
- Univ Lyon Université Claude Bernard Lyon 1, CNRS, Institut Lumière Matière, LYON, France
| | - Franck Denat
- Institut de Chimie Moléculaire, Université de Bourgogne, Dijon, France
| | | | - Goran Angelovski
- MR Neuroimaging Agents, Max Planck Institute for Biological Cybernetics, Tuebingen, Germany
| | - Alexandre Detappe
- Dana-Farber Cancer Institute, Harvard Medical School, Boston, Massachusetts, MA, USA
| | - Yannick Crémillieux
- Centre de Résonance Magnétique des Systèmes Biologiques, CNRS UMR, Université Bordeaux, Bordeaux, France
| | - Nathalie Mignet
- Chimie ParisTech, PSL Research University, Unité de Technologies Chimiques et Biologiques pour la Santé (UTCBS), Paris, France.,CNRS, UTCBS UMR , Paris, France.,Université Paris Descartes Sorbonne-Paris-Cité, Paris, France.,INSERM, UTCBS U 1022, Paris, France
| | - Bich-Thuy Doan
- Chimie ParisTech, PSL Research University, Unité de Technologies Chimiques et Biologiques pour la Santé (UTCBS), Paris, France.,CNRS, UTCBS UMR , Paris, France.,Université Paris Descartes Sorbonne-Paris-Cité, Paris, France.,INSERM, UTCBS U 1022, Paris, France
| | - Benoit Larrat
- NeuroSpin, CEA Saclay, Gif-sur-Yvette, France.,Université Paris-Saclay, Orsay, France
| | - Sébastien Meriaux
- NeuroSpin, CEA Saclay, Gif-sur-Yvette, France.,Université Paris-Saclay, Orsay, France
| | - Emmanuel Barbier
- INSERM, Univ. Grenoble Alpes, Grenoble Institut des Neurosciences , Grenoble, France
| | - Stéphane Roux
- Institut UTINAM, UMR CNRS 6213-Université de Bourgogne Franche-Comté, Besançon, France
| | - Peter Fries
- Clinic of Diagnostic and Interventional Radiology, Saarland University Medical Center, Homburg/Saar, Germany
| | - Andreas Müller
- Clinic of Diagnostic and Interventional Radiology, Saarland University Medical Center, Homburg/Saar, Germany
| | - Marie-Caline Abadjian
- Department of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, USA.,Department of Radiology, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Carolyn Anderson
- Department of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, USA.,Department of Radiology, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Emmanuelle Canet-Soulas
- Univ Lyon, CarMeN Laboratory Institut National de la Santé et de la Recherche Médicale U1060,INRA U1397, Université Lyon 1, INSA Lyon, Oullins, France
| | - Penelope Bouziotis
- Institute of Nuclear & Radiological Sciences & Technology, Energy & Safety, National Center forScientific Research "Demokritos", Aghia Paraskevi, Athens, Greece
| | | | - Céline Frochot
- Laboratoire Réactions et Génie des Procédés, UMR, Université de Lorraine-CNRS, Nancy, France
| | - Camille Verry
- Radiotherapy department, CHU de Grenoble, Grenoble cedex 9, France
| | - Jacques Balosso
- Radiotherapy department, CHU de Grenoble, Grenoble cedex 9, France
| | - Michael Evans
- Department of Radiology and Biomedical Imaging, University of California, San Francisco, San Francisco, USA
| | | | - Marc Janier
- UNIV Lyon - Université Claude Bernard Lyon 1, Villeurbanne, France.,Hospices Civils de Lyon, plateforme Imthernat, Hôpital Edouard Herriot, Lyon, France
| | - Karl Butterworth
- Centre for Cancer Research and Cell Biology Queen's University Belfast,, Belfast BT9 7AE, UK
| | - Stephen McMahon
- Centre for Cancer Research and Cell Biology Queen's University Belfast,, Belfast BT9 7AE, UK
| | - Kevin Prise
- Centre for Cancer Research and Cell Biology Queen's University Belfast,, Belfast BT9 7AE, UK
| | - Marie-Thérèse Aloy
- IPNL, PRISME, Laboratoire de Radiobiologie Cellulaire et Moléculaire, Faculté de Médecine Lyon-Sud, Université Lyon 1; Hospices Civils de Lyon, Centre Hospitalier Lyon-Sud, Pierre-Bénite, France
| | - Dominique Ardail
- IPNL, PRISME, Laboratoire de Radiobiologie Cellulaire et Moléculaire, Faculté de Médecine Lyon-Sud, Université Lyon 1; Hospices Civils de Lyon, Centre Hospitalier Lyon-Sud, Pierre-Bénite, France
| | - Claire Rodriguez-Lafrasse
- IPNL, PRISME, Laboratoire de Radiobiologie Cellulaire et Moléculaire, Faculté de Médecine Lyon-Sud, Université Lyon 1; Hospices Civils de Lyon, Centre Hospitalier Lyon-Sud, Pierre-Bénite, France
| | - Erika Porcel
- ISMO UMR, Université Paris Saclay, Université Paris Sud, CNRS, Orsay cedex, France
| | - Sandrine Lacombe
- ISMO UMR, Université Paris Saclay, Université Paris Sud, CNRS, Orsay cedex, France
| | - Ross Berbeco
- Dana-Farber Cancer Institute, Harvard Medical School, Boston, Massachusetts, MA, USA
| | - Awatef Allouch
- Cell death and Aging team, Gustave Roussy, rue Edouard Vaillant, Villejuif, France.,Laboratory of Molecular Radiotherapy INSERM, Gustave Roussy, rue Edouard Vaillant, Villejuif, France.,Gustave Roussy, rue Edouard Vaillant, Villejuif, France.,Université Paris Sud - Paris , rue Edouard Vaillant, Villejuif, France
| | - Jean-Luc Perfettini
- Cell death and Aging team, Gustave Roussy, rue Edouard Vaillant, Villejuif, France.,Laboratory of Molecular Radiotherapy INSERM, Gustave Roussy, rue Edouard Vaillant, Villejuif, France.,Gustave Roussy, rue Edouard Vaillant, Villejuif, France.,Université Paris Sud - Paris , rue Edouard Vaillant, Villejuif, France
| | - Cyrus Chargari
- French Military Health Academy, Ecole du Val-de-Grâce, Paris, France.,Institut de Recherche Biomédicale des Armées, Bretigny-sur-Orge, France.,Radiotherapy Department, Gustave Roussy, Villejuif, France.,Brachytherapy Unit, Gustave Roussy Cancer Campus, Villejuif, France
| | - Eric Deutsch
- Radiotherapy Department, Gustave Roussy, Villejuif, France.,Brachytherapy Unit, Gustave Roussy Cancer Campus, Villejuif, France
| | | | - Olivier Tillement
- NH TherAguix SAS, Villeurbanne, France.,Univ Lyon Université Claude Bernard Lyon 1, CNRS, Institut Lumière Matière, LYON, France
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5
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Sok N, Bernhard C, Désogère P, Goze C, Rousselin Y, Boschetti F, Baglin I, Denat F. Efficient Synthesis of Multifunctional Chelating Agents Based on Tetraazacycloalkanes. European J Org Chem 2018. [DOI: 10.1002/ejoc.201800801] [Citation(s) in RCA: 2] [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: 11/05/2022]
Affiliation(s)
- Nicolas Sok
- AgroSup Dijon; PAM UMR A 02.102; Univ. Bourgogne Franche-Comté; 21000 Dijon France
| | - Claire Bernhard
- Institut de Chimie Moléculaire de l'Université de Bourgogne; UMR CNRS 6302; Univ. Bourgogne Franche-Comté; 9 Avenue Alain Savary 21078 Dijon Cedex France
| | - Pauline Désogère
- Institut de Chimie Moléculaire de l'Université de Bourgogne; UMR CNRS 6302; Univ. Bourgogne Franche-Comté; 9 Avenue Alain Savary 21078 Dijon Cedex France
| | - Christine Goze
- Institut de Chimie Moléculaire de l'Université de Bourgogne; UMR CNRS 6302; Univ. Bourgogne Franche-Comté; 9 Avenue Alain Savary 21078 Dijon Cedex France
| | - Yoann Rousselin
- Institut de Chimie Moléculaire de l'Université de Bourgogne; UMR CNRS 6302; Univ. Bourgogne Franche-Comté; 9 Avenue Alain Savary 21078 Dijon Cedex France
| | | | - Isabelle Baglin
- Faculté de santé Département Pharmacie; Pharmacochimie; 28 rue Roger Amsler 49045 Angers Cedex France
| | - Franck Denat
- Institut de Chimie Moléculaire de l'Université de Bourgogne; UMR CNRS 6302; Univ. Bourgogne Franche-Comté; 9 Avenue Alain Savary 21078 Dijon Cedex France
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6
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Affiliation(s)
- F. Boschetti
- Dipartimento di Bioingegneria, Politecnico di Milano, Milano
- CeBITeC, Politecnico di Milano and IRCCS S. Raffaele, Milano, Italy
| | - G. Pennati
- Dipartimento di Bioingegneria, Politecnico di Milano, Milano
- CeBITeC, Politecnico di Milano and IRCCS S. Raffaele, Milano, Italy
| | - F.M. Montevecchi
- Dipartimento di Bioingegneria, Politecnico di Milano, Milano
- CeBITeC, Politecnico di Milano and IRCCS S. Raffaele, Milano, Italy
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7
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Abstract
Virtual instruments for an extracorporeal circulation (ECC) process were developed to simulate the reactions of a patient to different artificial perfusion conditions. The computer simulation of the patient takes into account the hydraulic, volume, thermal and biochemical phenomena and their interaction with the devices involved in ECC (cannulae dimensions, oxygenator and filter types, pulsatile or continuous pump and thermal exchangers). On the basis of the patient's initialisation data (height, weight, Ht) and perfusion variables (pump flow rate, water temperature, gas flow rate and composition) imposed by the operator, the virtual ECC monitors simulated arterial and venous pressure tracings in real time, along with arterial and venous flow rate tracings, urine production tracing and temperature levels. Oxyhemoglobin arterial and venous blood saturation together with other related variables (pO2, pCO2, pH, HCO3) are also monitored. A drug model which allows the simulation of the effect of vasodilator and diuretic drugs is also implemented. Alarms are provided in order to check which variables (pressure, saturation, pH, urine flow) are out of the expected ranges during the ECC simulation. Consequently the possibility of modifying the control parameters of the virtual devices of the ECC in run-time mode offers an interaction mode between the operator and the virtual environment.
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Affiliation(s)
- F. Boschetti
- Dipartimento di Bioingegneria, Politecnico di Milano, Milano
- CeBITeC: IRCCS S. Raffaele and Politecnico di Milano, Milano - Italy
| | - F.M. Montevecchi
- Dipartimento di Bioingegneria, Politecnico di Milano, Milano
- CeBITeC: IRCCS S. Raffaele and Politecnico di Milano, Milano - Italy
| | - R. Fumero
- Dipartimento di Bioingegneria, Politecnico di Milano, Milano
- CeBITeC: IRCCS S. Raffaele and Politecnico di Milano, Milano - Italy
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8
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Tran VL, Thakare V, Rossetti F, Baudouin A, Ramniceanu G, Doan BT, Mignet N, Comby-Zerbino C, Antoine R, Dugourd P, Boschetti F, Denat F, Louis C, Roux S, Doussineau T, Tillement O, Lux F. One-pot direct synthesis for multifunctional ultrasmall hybrid silica nanoparticles. J Mater Chem B 2018; 6:4821-4834. [DOI: 10.1039/c8tb00195b] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
A novel and simple route to synthesize ultrasmall silica nanoparticles having hydrodynamic diameters under 10 nm for imaging and therapeutic applications.
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9
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Di Giancamillo A, Deponti D, Raimondi MT, Boschetti F, Gervaso F, Modina S, Mangiavini L, Peretti GM. Comparison between different cell sources and culture strategies for tendon tissue engineering. J BIOL REG HOMEOS AG 2017; 31:61-66. [PMID: 29185297] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
The aim of this study was to evaluate the effect of an in vitro mechanical stimulation by the use of a bioreactor on an engineered tendon for 7 and 14 days and to analyze the effect of the use of different cell sources: tenocytes, dermal fibroblasts or Adipose-Derived Stem Cells (ASCs), isolated from pig tissues. Histology showed a re-organization of the neo-tissue derived from the three cell populations along the direction of the stimulus. At T7, cells morphology was preserved while an increased cellular suffering at T14 was observed for all cell populations. Tenocytes exhibited higher survival than other cells. A stable immunopositivity for collagen type 1 or 3 at both time points was also observed. In conclusion, dermal fibroblasts and ASCs represent an interesting alternative and in vitro culture with mechanical stimuli may enhance the maturation of a tendon-like tissue.
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Affiliation(s)
- A Di Giancamillo
- Department of Health, Animal Science and Food Safety, University of Milan, Italy
| | - D Deponti
- IRCCS, Ospedale San Raffaele, Milan, Italy
| | - M T Raimondi
- Department of Chemistry, Materials and Chemical Engineering “Giulio Natta”, Politecnico di Milano, Milan, Italy
| | - F Boschetti
- Department of Chemistry, Materials and Chemical Engineering “Giulio Natta”, Politecnico di Milano, Milan, Italy
- IRCCS Istituto Ortopedico Galeazzi, Milan, Italy
| | - F Gervaso
- Department of Engineering for Innovation, University of Salento, Italy
| | - S Modina
- Department of Health, Animal Science and Food Safety, University of Milan, Italy
| | - L Mangiavini
- IRCCS Istituto Ortopedico Galeazzi, Milan, Italy
| | - G M Peretti
- IRCCS Istituto Ortopedico Galeazzi, Milan, Italy
- Department of Biomedical Sciences for Health, University of Milan, Italy
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10
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Sok N, Baglin I, Basset C, Fakkor F, Kohli E, Rousselin Y, Bernhard C, Boschetti F, Goze C, Denat F. Straightforward synthesis of bis-tetraazacycloalkanes: towards new potential CXCR4 antagonists? RSC Adv 2017. [DOI: 10.1039/c7ra04218c] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023] Open
Abstract
We report herein an efficient and general method for the synthesis of new bismacrocyclic compounds, structural analogues of biscyclam AMD3100, in which the two macrocycles are linked together through carbon atoms of the cycles.
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Affiliation(s)
- Nicolas Sok
- Univ. Bourgogne Franche-Comté
- AgroSup Dijon
- PAM UMR A 02.102
- F-21000 Dijon
- France
| | - Isabelle Baglin
- Institut de Chimie Moléculaire de l'Université de Bourgogne
- UMR CNRS 6302
- Univ. Bourgogne Franche-Comté
- 21078 Dijon Cedex
- France
| | - Christelle Basset
- INSERM UMR 866
- UFR des Sciences de Santé
- Univ. Bourgogne Franche-Comté
- Dijon
- France
| | | | - Evelyne Kohli
- INSERM UMR 866
- UFR des Sciences de Santé
- Univ. Bourgogne Franche-Comté
- Dijon
- France
| | - Yoann Rousselin
- Institut de Chimie Moléculaire de l'Université de Bourgogne
- UMR CNRS 6302
- Univ. Bourgogne Franche-Comté
- 21078 Dijon Cedex
- France
| | - Claire Bernhard
- Institut de Chimie Moléculaire de l'Université de Bourgogne
- UMR CNRS 6302
- Univ. Bourgogne Franche-Comté
- 21078 Dijon Cedex
- France
| | | | - Christine Goze
- Institut de Chimie Moléculaire de l'Université de Bourgogne
- UMR CNRS 6302
- Univ. Bourgogne Franche-Comté
- 21078 Dijon Cedex
- France
| | - Franck Denat
- Institut de Chimie Moléculaire de l'Université de Bourgogne
- UMR CNRS 6302
- Univ. Bourgogne Franche-Comté
- 21078 Dijon Cedex
- France
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11
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Moreau M, Poty S, Vrigneaud JM, Walker P, Guillemin M, Raguin O, Oudot A, Bernhard C, Goze C, Boschetti F, Collin B, Brunotte F, Denat F. MANOTA: a promising bifunctional chelating agent for copper-64 immunoPET. Dalton Trans 2017; 46:14659-14668. [DOI: 10.1039/c7dt01772c] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [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 comparison of four bifunctional chelating agents showed superior behaviour of a new NOTA derivative for 64Cu labelling of antibody fragments.
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12
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Gervaso F, Mangiavini L, Di Giancamillo A, Boschetti F, Izzo D, Zani DD, Di Giancamillo M, Tessaro I, Domenicucci M, Scalera F, Domeneghini C, Crovace AM, Sannino A, Peretti GM. Comparison of three novel biphasic scaffolds for one-stage treatment of osteochondral defects in a sheep model. J BIOL REG HOMEOS AG 2016; 30:24-31. [PMID: 28002897] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
In the last years, several tissue engineering techniques have been applied to develop different kinds of osteochondral substitutes to overcome the scarce reparative properties of this tissue. The aim of this study was to generate and compare three biphasic scaffolds in an osteochondral lesion in a large-animal model. A critical osteochondral defect was generated in the medial femoral condyle of 18 skeletally mature sheep. Three defects were left untreated, the remaining lesions were divided into three groups: 5 lesions were treated with a biphasic scaffold made of collagen type I and small cylinders of Magnesium Hydroxyapatite; 5 lesions were treated with a biphasic substituted formed by collagen type I and Wollastonite, 5 lesions were treated with a scaffold made of collagen type I and small cylinders of Wollastonite/Hydroxyapatite. Animals were sacrificed after 3 months and samples were analyzed by CT and MRI, macroscopic evaluation and histology. Our study demonstrated that one of these novel biphasic scaffolds possesses the potential for being applied for one-stage procedures for osteochondral defects.
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Affiliation(s)
- F Gervaso
- Department of Engineering for Innovation, University of Salento, Lecce, Italy
| | - L Mangiavini
- IRCCS Istituto Ortopedico Galeazzi, Milan, Italy
| | - A Di Giancamillo
- Department of Health, Animal Science and Food Safety, University of Milan, Milan, Italy
| | - F Boschetti
- Laboratory of Biological Structure Mechanics, Department of Structural Engineering, Politecnico di Milano, Milan, Italy
| | - D Izzo
- Department of Engineering for Innovation, University of Salento, Lecce, Italy
| | - D D Zani
- Department of Veterinary Medicine (DIMEVET), Ospedale Didattico Universitario Az. Polo Veterinario di Lodi, University of Milan, Milan, Italy
| | - M Di Giancamillo
- Department of Veterinary Medicine (DIMEVET), Ospedale Didattico Universitario Az. Polo Veterinario di Lodi, University of Milan, Milan, Italy
| | - I Tessaro
- IRCCS Istituto Ortopedico Galeazzi, Milan, Italy
| | - M Domenicucci
- Residency Program in Orthopaedics and Traumatology, University of Milan, Milan, Italy
| | - F Scalera
- Department of Engineering for Innovation, University of Salento, Lecce, Italy
| | - C Domeneghini
- Department of Health, Animal Science and Food Safety, University of Milan, Milan, Italy
| | - A M Crovace
- Dottorato di Ricerca in Sanità e Scienze Sperimentali Veterinarie –DMV, University of Perugia, Perugia, Italy
| | - A Sannino
- Department of Engineering for Innovation, University of Salento, Lecce, Italy
| | - G M Peretti
- IRCCS Istituto Ortopedico Galeazzi, Milan, Italy
- Department of Biomedical Sciences for Health, University of Milan, Milan, Italy
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13
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Bottagisio M, Pellegata AF, Boschetti F, Ferroni M, Moretti M, Lovati AB. A new strategy for the decellularisation of large equine tendons as biocompatible tendon substitutes. Eur Cell Mater 2016; 32:58-73. [PMID: 27386840 DOI: 10.22203/ecm.v032a04] [Citation(s) in RCA: 23] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023] Open
Abstract
Tendon ruptures and/or large losses remain to be a great clinical challenge and often require full replacement of the damaged tissue. The use of auto- and allografts or engineered scaffolds is an established approach to restore severe tendon injuries. However, these grafts are commonly related to scarce biocompatibility, site morbidity, chronic inflammation and poor biomechanical properties. Recently, the decellularisation techniques of allo- or xenografts using specific detergents have been studied and have been found to generate biocompatible substitutes that resemble the native tissue. This study aims to identify a novel decellularisation protocol for large equine tendons that would produce an extracellular matrix scaffold suitable for the regeneration of injured tendons in humans. Specifically, equine tendons were treated either with tri (n-butyl) phosphate alone, or associated to multiple concentrations of peracetic acid (1, 3 and 5 %), which has never before been tested in vitro.Samples were then analysed by histology and with biochemical, biomechanical, and cytotoxicity tests. The best decellularisation protocol, resulting from these examinations, was selected and the chosen scaffold was re-seeded with murine fibroblasts. Resulting grafts were tested for cell viability, histologic analysis, DNA and collagen content. The results identified 1 % tri (n-butyl) phosphate combined with 3 % peracetic acid as the most suitable decellularised matrix in terms of biochemical and biomechanical properties. Moreover, the non-cytotoxic nature of the decellularised matrix allowed for good fibroblast reseeding, thus demonstrating a biocompatible matrix that will be suitable for tendon tissue engineering and hopefully as substitutes in severe tendon damages.
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Affiliation(s)
- M Bottagisio
- Cell and Tissue Engineering Laboratory, IRCCS Galeazzi Orthopaedic Institute, via R. Galeazzi 4, 20161 Milan,
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Laurent G, Bernhard C, Dufort S, Jiménez Sánchez G, Bazzi R, Boschetti F, Moreau M, Vu TH, Collin B, Oudot A, Herath N, Requardt H, Laurent S, Vander Elst L, Muller R, Dutreix M, Meyer M, Brunotte F, Perriat P, Lux F, Tillement O, Le Duc G, Denat F, Roux S. Minor changes in the macrocyclic ligands but major consequences on the efficiency of gold nanoparticles designed for radiosensitization. Nanoscale 2016; 8:12054-12065. [PMID: 27244570 DOI: 10.1039/c6nr01228k] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Many studies have been devoted to adapting the design of gold nanoparticles to efficiently exploit their promising capability to enhance the effects of radiotherapy. In particular, the addition of magnetic resonance imaging modality constitutes an attractive strategy for enhancing the selectivity of radiotherapy since it allows the determination of the most suited delay between the injection of nanoparticles and irradiation. This requires the functionalization of the gold core by an organic shell composed of thiolated gadolinium chelates. The risk of nephrogenic systemic fibrosis induced by the release of gadolinium ions should encourage the use of macrocyclic chelators which form highly stable and inert complexes with gadolinium ions. In this context, three types of gold nanoparticles (Au@DTDOTA, Au@TADOTA and Au@TADOTAGA) combining MRI, nuclear imaging and radiosensitization have been developed with different macrocyclic ligands anchored onto the gold cores. Despite similarities in size and organic shell composition, the distribution of gadolinium chelate-coated gold nanoparticles (Au@TADOTA-Gd and Au@TADOTAGA-Gd) in the tumor zone is clearly different. As a result, the intravenous injection of Au@TADOTAGA-Gd prior to the irradiation of 9L gliosarcoma bearing rats leads to the highest increase in lifespan whereas the radiophysical effects of Au@TADOTAGA-Gd and Au@TADOTA-Gd are very similar.
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Affiliation(s)
- G Laurent
- Institut UTINAM, UMR 6213 CNRS-UBFC, Université de Bourgogne Franche-Comté, 25030 Besançon Cedex, France.
| | - C Bernhard
- Institut de Chimie Moléculaire de l'Université de Bourgogne (ICMUB), UMR 6302 CNRS-UBFC, Université de Bourgogne Franche-Comté, 21078 Dijon Cedex, France
| | - S Dufort
- Nano-H S.A.S, 2 Place de l'Europe, 38070 Saint Quentin-Fallavier, France
| | - G Jiménez Sánchez
- Institut UTINAM, UMR 6213 CNRS-UBFC, Université de Bourgogne Franche-Comté, 25030 Besançon Cedex, France.
| | - R Bazzi
- Institut UTINAM, UMR 6213 CNRS-UBFC, Université de Bourgogne Franche-Comté, 25030 Besançon Cedex, France.
| | | | - M Moreau
- Institut de Chimie Moléculaire de l'Université de Bourgogne (ICMUB), UMR 6302 CNRS-UBFC, Université de Bourgogne Franche-Comté, 21078 Dijon Cedex, France
| | - T H Vu
- Institut de Chimie Moléculaire de l'Université de Bourgogne (ICMUB), UMR 6302 CNRS-UBFC, Université de Bourgogne Franche-Comté, 21078 Dijon Cedex, France
| | - B Collin
- Institut de Chimie Moléculaire de l'Université de Bourgogne (ICMUB), UMR 6302 CNRS-UBFC, Université de Bourgogne Franche-Comté, 21078 Dijon Cedex, France and Plateforme d'imagerie préclinique, Centre Georges-François Leclerc, 21079 Dijon Cedex, France
| | - A Oudot
- Plateforme d'imagerie préclinique, Centre Georges-François Leclerc, 21079 Dijon Cedex, France
| | - N Herath
- Recombinaison, réparation et cancer: de la molécule au patient, Institut Curie, UMR CNRS 3347 - Inserm U1021, 91405 Orsay, France
| | - H Requardt
- ID17 Biomedical Beamline, European Synchrotron Radiation Facility, 38000 Grenoble, France
| | - S Laurent
- NMR Laboratory, Université de Mons, 7000 Mons, Belgium
| | - L Vander Elst
- NMR Laboratory, Université de Mons, 7000 Mons, Belgium
| | - R Muller
- NMR Laboratory, Université de Mons, 7000 Mons, Belgium
| | - M Dutreix
- Recombinaison, réparation et cancer: de la molécule au patient, Institut Curie, UMR CNRS 3347 - Inserm U1021, 91405 Orsay, France
| | - M Meyer
- Institut de Chimie Moléculaire de l'Université de Bourgogne (ICMUB), UMR 6302 CNRS-UBFC, Université de Bourgogne Franche-Comté, 21078 Dijon Cedex, France
| | - F Brunotte
- Plateforme d'imagerie préclinique, Centre Georges-François Leclerc, 21079 Dijon Cedex, France
| | - P Perriat
- Matériaux Ingénierie et Science, UMR 5510 CNRS-INSA, INSA de Lyon, 69621 Villeurbanne Cedex, France
| | - F Lux
- Institut Lumière Matière, UMR 5306 CNRS-UCBL, Université de Lyon, 69622 Villeurbanne Cedex, France
| | - O Tillement
- Institut Lumière Matière, UMR 5306 CNRS-UCBL, Université de Lyon, 69622 Villeurbanne Cedex, France
| | - G Le Duc
- ID17 Biomedical Beamline, European Synchrotron Radiation Facility, 38000 Grenoble, France
| | - F Denat
- Institut de Chimie Moléculaire de l'Université de Bourgogne (ICMUB), UMR 6302 CNRS-UBFC, Université de Bourgogne Franche-Comté, 21078 Dijon Cedex, France
| | - S Roux
- Institut UTINAM, UMR 6213 CNRS-UBFC, Université de Bourgogne Franche-Comté, 25030 Besançon Cedex, France.
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Poty S, Gourni E, Désogère P, Boschetti F, Goze C, Maecke HR, Denat F. AMD3100: A Versatile Platform for CXCR4 Targeting (68)Ga-Based Radiopharmaceuticals. Bioconjug Chem 2016; 27:752-61. [PMID: 26886512 DOI: 10.1021/acs.bioconjchem.5b00689] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [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
CXCR4 is a G protein-coupled receptor (GPCR), which is overexpressed in numerous diseases, particularly in multiple cancers. Therefore, this receptor represents a valuable target for imaging and therapeutic purposes. Among the different approaches, which were developed for CXCR4 imaging, a CXCR4 antagonist biscyclam system (AMD3100, also called Mozobil), currently used in the clinic for the mobilization of hematopoietic stem cells, was radiolabeled with different radiometals such as (62)Zn, (64)Cu, (67)Ga, or (99m)Tc. However, cyclam is not an ideal chelator for most of these radiometals, and could lead to the release of the radionuclide in vivo. In the current study, a new family of CXCR4 imaging agents is presented, in which AMD3100 is used as a carrier for specific delivery of an imaging reporter, i.e., a (68)Ga complex for PET imaging. AMD3100 was functionalized on the phenyl moiety with different linkers, either ethylenediamine or diamino-polyethylene glycol 3 (PEG3). The resulting AMD3100 analogues were further coupled with two different chelators, 1,4,7,10-tetraazacyclododecane-1,4,7,10-tetraacetic acid (DOTA) or 1,4,7-triazacyclononane-1-glutaric acid-4,7-acetic acid (NODAGA). Five potential CXCR4 targeting agents were obtained. The derived AMD3100-based ligands were labeled with (68)Ga, highlighting the influence of the spacer nature on the (68)Ga-labeling yield. The lipophilic character of the different systems was also investigated, as well as their affinity for the CXCR4 receptor. The most promising compound was further evaluated in vivo in H69 tumor xenografts by biodistribution and PET imaging studies, validating the proof of principle of our concept.
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Affiliation(s)
- Sophie Poty
- Institut de Chimie Moléculaire de l'Université de Bourgogne, UMR6302, CNRS, Université Bourgogne Franche-Comté , F-21000 Dijon, France
| | - Eleni Gourni
- German Cancer Consortium (DKTK) , Heidelberg 69120, Germany.,Department of Nuclear medicine, University Hospital Freiburg , Freiburg 79106, Germany.,German Cancer Research Center (DKFZ) , Heidelberg 69120, Germany
| | - Pauline Désogère
- Institut de Chimie Moléculaire de l'Université de Bourgogne, UMR6302, CNRS, Université Bourgogne Franche-Comté , F-21000 Dijon, France
| | | | - Christine Goze
- Institut de Chimie Moléculaire de l'Université de Bourgogne, UMR6302, CNRS, Université Bourgogne Franche-Comté , F-21000 Dijon, France
| | - Helmut R Maecke
- Department of Nuclear medicine, University Hospital Freiburg , Freiburg 79106, Germany
| | - Franck Denat
- Institut de Chimie Moléculaire de l'Université de Bourgogne, UMR6302, CNRS, Université Bourgogne Franche-Comté , F-21000 Dijon, France
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Poty S, Désogère P, Goze C, Boschetti F, D'huys T, Schols D, Cawthorne C, Archibald SJ, Maëcke HR, Denat F. New AMD3100 derivatives for CXCR4 chemokine receptor targeted molecular imaging studies: synthesis, anti-HIV-1 evaluation and binding affinities. Dalton Trans 2015; 44:5004-16. [PMID: 25640878 DOI: 10.1039/c4dt02972k] [Citation(s) in RCA: 26] [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
CXCR4 is a target of growing interest for the development of new therapeutic drugs and imaging agents as its role in multiple disease states has been demonstrated. AMD3100, a CXCR4 chemokine receptor antagonist that is in current clinical use as a haematopoietic stem cell mobilising drug, has been widely studied for its anti-HIV properties, potential to inhibit metastatic spread of certain cancers and, more recently, its ability to chelate radiometals for nuclear imaging. In this study, AMD3100 is functionalised on the phenyl moiety to investigate the influence of the structural modification on the anti-HIV-1 properties and receptor affinity in competition with anti-CXCR4 monoclonal antibodies and the natural ligand for CXCR4, CXCL12. The effect of complexation of nickel(II) in the cyclam cavities has been investigated. Two amino derivatives were obtained and are suitable intermediates for conjugation reactions to obtain CXCR4 molecular imaging agents. A fluorescent probe (BODIPY) and a precursor for (18)F (positron emitting isotope) radiolabelling were conjugated to validate this route to new CXCR4 imaging agents.
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Affiliation(s)
- Sophie Poty
- ICMUB (UMR CNRS 6302), 9 Av. Alain Savary, BP 47870 21000 Dijon, France.
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Poty S, Désogère P, Nicholson K, Nigam S, Goze C, Boschetti F, Archibald S, Maëcke H, Denat F. New imaging agents targeting chemokine receptor CXCR4 for PET/SPECT and MRI. EJNMMI Phys 2015; 1:A81. [PMID: 26501673 PMCID: PMC4544615 DOI: 10.1186/2197-7364-1-s1-a81] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Affiliation(s)
- Sophie Poty
- ICMUB (UMR CNRS 6302), 9 Av. Alain Savary, BP 47870, 21000, Dijon cedex, France
| | - Pauline Désogère
- ICMUB (UMR CNRS 6302), 9 Av. Alain Savary, BP 47870, 21000, Dijon cedex, France
| | - Kati Nicholson
- Department of Chemistry, The University of Hull, Kingston upon Hull, HU6 7RX, UK
| | - Shubhanchi Nigam
- Department of Chemistry, The University of Hull, Kingston upon Hull, HU6 7RX, UK
| | - Christine Goze
- ICMUB (UMR CNRS 6302), 9 Av. Alain Savary, BP 47870, 21000, Dijon cedex, France
| | | | - Steve Archibald
- Department of Chemistry, The University of Hull, Kingston upon Hull, HU6 7RX, UK
| | - Helmut Maëcke
- Universitätsklinikum Freiburg, IMSRobert-Koch-Str. 1, Freiburg, D-79106, Germany
| | - Franck Denat
- ICMUB (UMR CNRS 6302), 9 Av. Alain Savary, BP 47870, 21000, Dijon cedex, France
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18
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Roubinet B, Massif C, Moreau M, Boschetti F, Ulrich G, Ziessel R, Renard PY, Romieu A. New 3-(Heteroaryl)-2-iminocoumarin-based Borate Complexes: Synthesis, Photophysical Properties, and Rational Functionalization for Biosensing/Biolabeling Applications. Chemistry 2015; 21:14589-601. [DOI: 10.1002/chem.201502126] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2015] [Indexed: 01/26/2023]
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19
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Poty S, Désogère P, Šimeček J, Bernhard C, Goncalves V, Goze C, Boschetti F, Notni J, Wester HJ, Denat F. MA-NOTMP: A Triazacyclononane Trimethylphosphinate Based Bifunctional Chelator for Gallium Radiolabelling of Biomolecules. ChemMedChem 2015; 10:1475-9. [DOI: 10.1002/cmdc.201500198] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2015] [Indexed: 12/20/2022]
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Truillet C, Bouziotis P, Tsoukalas C, Brugière J, Martini M, Sancey L, Brichart T, Denat F, Boschetti F, Darbost U, Bonnamour I, Stellas D, Anagnostopoulos CD, Koutoulidis V, Moulopoulos LA, Perriat P, Lux F, Tillement O. Ultrasmall particles for Gd-MRI and (68) Ga-PET dual imaging. Contrast Media Mol Imaging 2014; 10:309-19. [PMID: 25483609 DOI: 10.1002/cmmi.1633] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2014] [Revised: 10/09/2014] [Accepted: 10/10/2014] [Indexed: 12/16/2022]
Abstract
Nanoparticles made of a polysiloxane matrix and surrounded by 1,4,7,10-tetraazacyclododecane-1-glutaric anhydride-4,7,10-triacetic acid (DOTAGA)[Gd(3+) ] and 2,2'-(7-(1-carboxy-4-((2,5-dioxopyrrolidin-1-yl)oxy)-4-oxobutyl)-1,4,7-triazonane-1,4-diyl)diacetic acid) NODAGA[(68) Ga(3+) ] have been synthesized for positron emission tomography/magnetic resonance (PET/MRI) dual imaging. Characterizations were carried out in order to determine the nature of the ligands available for radiolabelling and to quantify them. High radiolabelling purity (>95%) after (68) Ga labelling was obtained. The MR and PET images demonstrate the possibility of using the nanoparticles for a combined PET/MR imaging scanner. The images show fast renal elimination of the nanoparticles after intravenous injection.
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Affiliation(s)
- Charles Truillet
- ILM, UMR 5306 - Université Claude Bernard Lyon 1, Université de Lyon, 69622, Villeurbanne Cedex, France
| | - Penelope Bouziotis
- Radiochemistry Studies Laboratory, Institute of Nuclear and Radiological Sciences and Technology, Energy and Safety, National Center for Scientific Research 'Demokritos', Athens, Greece
| | - Charalambos Tsoukalas
- Radiochemistry Studies Laboratory, Institute of Nuclear and Radiological Sciences and Technology, Energy and Safety, National Center for Scientific Research 'Demokritos', Athens, Greece
| | - Jérémy Brugière
- ILM, UMR 5306 - Université Claude Bernard Lyon 1, Université de Lyon, 69622, Villeurbanne Cedex, France
| | - Matteo Martini
- ILM, UMR 5306 - Université Claude Bernard Lyon 1, Université de Lyon, 69622, Villeurbanne Cedex, France
| | - Lucie Sancey
- ILM, UMR 5306 - Université Claude Bernard Lyon 1, Université de Lyon, 69622, Villeurbanne Cedex, France
| | - Thomas Brichart
- ILM, UMR 5306 - Université Claude Bernard Lyon 1, Université de Lyon, 69622, Villeurbanne Cedex, France
| | - Franck Denat
- Institut de Chimie Moléculaire de l'Université de Bourgogne, UMR CNRS 6302, Université de Bourgogne, 21078, Dijon Cedex, France
| | | | - Ulrich Darbost
- ICBMS, UMR 5246 - Université Claude Bernard Lyon 1, Université de Lyon, 69622, Villeurbanne Cedex, France
| | - Isabelle Bonnamour
- ICBMS, UMR 5246 - Université Claude Bernard Lyon 1, Université de Lyon, 69622, Villeurbanne Cedex, France
| | - Dimitris Stellas
- Department of Cancer Biology, Biomedical Research Foundation, Academy of Athens, Athens, Greece
| | - Constantinos D Anagnostopoulos
- Center for Experimental surgery, Clinical and Translational Research, Biomedical Research Foundation, Academy of Athens, Athens, Greece
| | - Vassilis Koutoulidis
- Department of Radiology, University of Athens Medical School, Areteion Hospital, Athens, Greece
| | - Lia A Moulopoulos
- Department of Radiology, University of Athens Medical School, Areteion Hospital, Athens, Greece
| | - Pascal Perriat
- Matériaux Ingénierie et Science, INSA Lyon, UMR 5510, 69621, Villeurbanne Cedex, France
| | - François Lux
- ILM, UMR 5306 - Université Claude Bernard Lyon 1, Université de Lyon, 69622, Villeurbanne Cedex, France
| | - Olivier Tillement
- ILM, UMR 5306 - Université Claude Bernard Lyon 1, Université de Lyon, 69622, Villeurbanne Cedex, France
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Désogère P, Rousselin Y, Poty S, Bernhard C, Goze C, Boschetti F, Denat F. Efficient Synthesis of 1,4,7-Triazacyclononane and 1,4,7-Triazacyclononane-Based Bifunctional Chelators for Bioconjugation (Eur. J. Org. Chem. 35/2014). European J Org Chem 2014. [DOI: 10.1002/ejoc.201490099] [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]
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Chevalier A, Renault K, Boschetti F, Renard PY, Romieu A. Rapid Synthesis of Unsymmetrical Sulforhodamines Through Nucleophilic Amination of a Monobrominated Sulfoxanthene Dye. European J Org Chem 2014. [DOI: 10.1002/ejoc.201403165] [Citation(s) in RCA: 8] [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: 12/19/2022]
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Tsoukalas C, Lazopoulos A, Boschetti F, Triantis C, Bouziotis P, Pelecanou M, Papadopoulos M, Pirmettis I. Labeling of a NOTA mannosylated dextran with 68Ga. Nucl Med Biol 2014. [DOI: 10.1016/j.nucmedbio.2014.07.008] [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: 11/25/2022]
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Tsoukalas C, Lazopoulos A, Boschetti F, Triantis C, Bouziotis P, Pelecanou M, Papadopoulos M, Pirmettis I. Labeling of a NOTA mannosylated dextran with (68)Ga. Nucl Med Biol 2014; 41:801. [PMID: 25512988] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
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Tsoukalas C, Lazopoulos A, Boschetti F, Triantis C, Bouziotis P, Pelecanou M, Papadopoulos M, Pirmettis I. Labeling of a NOTA mannosylated dextran with (68)Ga. Nucl Med Biol 2014; 41:801. [PMID: 25422835] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
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Désogère P, Rousselin Y, Poty S, Bernhard C, Goze C, Boschetti F, Denat F. Efficient Synthesis of 1,4,7-Triazacyclononane and 1,4,7-Triazacyclononane-Based Bifunctional Chelators for Bioconjugation. European J Org Chem 2014. [DOI: 10.1002/ejoc.201402708] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Sancey L, Lux F, Kotb S, Roux S, Dufort S, Bianchi A, Crémillieux Y, Fries P, Coll JL, Rodriguez-Lafrasse C, Janier M, Dutreix M, Barberi-Heyob M, Boschetti F, Denat F, Louis C, Porcel E, Lacombe S, Le Duc G, Deutsch E, Perfettini JL, Detappe A, Verry C, Berbeco R, Butterworth KT, McMahon SJ, Prise KM, Perriat P, Tillement O. The use of theranostic gadolinium-based nanoprobes to improve radiotherapy efficacy. Br J Radiol 2014; 87:20140134. [PMID: 24990037 PMCID: PMC4453146 DOI: 10.1259/bjr.20140134] [Citation(s) in RCA: 143] [Impact Index Per Article: 14.3] [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: 01/01/2023] Open
Abstract
A new efficient type of gadolinium-based theranostic agent (AGuIX®) has recently been developed for MRI-guided radiotherapy (RT). These new particles consist of a polysiloxane network surrounded by a number of gadolinium chelates, usually 10. Owing to their small size (<5 nm), AGuIX typically exhibit biodistributions that are almost ideal for diagnostic and therapeutic purposes. For example, although a significant proportion of these particles accumulate in tumours, the remainder is rapidly eliminated by the renal route. In addition, in the absence of irradiation, the nanoparticles are well tolerated even at very high dose (10 times more than the dose used for mouse treatment). AGuIX particles have been proven to act as efficient radiosensitizers in a large variety of experimental in vitro scenarios, including different radioresistant cell lines, irradiation energies and radiation sources (sensitizing enhancement ratio ranging from 1.1 to 2.5). Pre-clinical studies have also demonstrated the impact of these particles on different heterotopic and orthotopic tumours, with both intratumoural or intravenous injection routes. A significant therapeutical effect has been observed in all contexts. Furthermore, MRI monitoring was proven to efficiently aid in determining a RT protocol and assessing tumour evolution following treatment. The usual theoretical models, based on energy attenuation and macroscopic dose enhancement, cannot account for all the results that have been obtained. Only theoretical models, which take into account the Auger electron cascades that occur between the different atoms constituting the particle and the related high radical concentrations in the vicinity of the particle, provide an explanation for the complex cell damage and death observed.
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Affiliation(s)
- L Sancey
- 1 Institut Lumière Matière, UMR5306 Université Lyon 1-CNRS, Team FENNEC, Université de Lyon, Villeurbanne Cedex, France
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Mignot A, Truillet C, Lux F, Sancey L, Louis C, Denat F, Boschetti F, Bocher L, Gloter A, Stéphan O, Antoine R, Dugourd P, Luneau D, Novitchi G, Figueiredo LC, de Morais PC, Bonneviot L, Albela B, Ribot F, Van Lokeren L, Déchamps-Olivier I, Chuburu F, Lemercier G, Villiers C, Marche PN, Le Duc G, Roux S, Tillement O, Perriat P. A top-down synthesis route to ultrasmall multifunctional Gd-based silica nanoparticles for theranostic applications. Chemistry 2013; 19:6122-36. [PMID: 23512788 DOI: 10.1002/chem.201203003] [Citation(s) in RCA: 99] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2012] [Indexed: 12/21/2022]
Abstract
New, ultrasmall nanoparticles with sizes below 5 nm have been obtained. These small rigid platforms (SRP) are composed of a polysiloxane matrix with DOTAGA (1,4,7,10-tetraazacyclododecane-1-glutaric anhydride-4,7,10-triacetic acid)-Gd(3+) chelates on their surface. They have been synthesised by an original top-down process: 1) formation of a gadolinium oxide Gd2O3 core, 2) encapsulation in a polysiloxane shell grafted with DOTAGA ligands, 3) dissolution of the gadolinium oxide core due to chelation of Gd(3+) by DOTAGA ligands and 4) polysiloxane fragmentation. These nanoparticles have been fully characterised using photon correlation spectroscopy (PCS), transmission electron microscopy (TEM), a superconducting quantum interference device (SQUID) and electron paramagnetic resonance (EPR) to demonstrate the dissolution of the oxide core and by inductively coupled plasma mass spectrometry (ICP-MS), mass spectrometry, fluorescence spectroscopy, (29)Si solid-state NMR, (1)H NMR and diffusion ordered spectroscopy (DOSY) to determine the nanoparticle composition. Relaxivity measurements gave a longitudinal relaxivity r1 of 11.9 s(-1) mM(-1) per Gd at 60 MHz. Finally, potentiometric titrations showed that Gd(3+) is strongly chelated to DOTAGA (complexation constant logβ110 =24.78) and cellular tests confirmed the that nanoconstructs had a very low toxicity. Moreover, SRPs are excreted from the body by renal clearance. Their efficiency as contrast agents for MRI has been proved and they are promising candidates as sensitising agents for image-guided radiotherapy.
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Affiliation(s)
- Anna Mignot
- Laboratoire de Physico-Chimie des Matériaux Luminescents, UMR 5620 CNRS-Université Claude Bernard Lyon 1, 69622 Villeurbanne Cedex, France
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30
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Bernhard C, Moreau M, Lhenry D, Goze C, Boschetti F, Rousselin Y, Brunotte F, Denat F. DOTAGA-anhydride: a valuable building block for the preparation of DOTA-like chelating agents. Chemistry 2012; 18:7834-41. [PMID: 22615050 DOI: 10.1002/chem.201200132] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2012] [Indexed: 11/07/2022]
Abstract
A DOTA derivative that contains an anhydride group was readily synthesized by reacting DOTAGA with acetic anhydride and its reactivity was investigated. Opening the anhydride with propylamine led to the selective formation of one of two possible regioisomers. The structure of the obtained isomer was unambiguously determined by 1D and 2D NMR experiments, including COSY, HMBC, and NOESY techniques. This bifunctional chelating agent offers a convenient and attractive approach for labeling biomolecules and, more generally, for the synthesis of a large range of DOTA derivatives. The scope of the reaction was extended to prepare DOTA-like compounds that contained various functional groups, such as isothiocyanate, thiol, ester, and amino acid moieties. This versatile building block was also used for the synthesis of a bimodal tag for SPECT or PET/optical imaging.
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Affiliation(s)
- Claire Bernhard
- Institut de Chimie Moléculaire de l'Université de Bourgogne, UMR CNRS 6302, 9 avenue Alain Savary, 21000 Dijon, France
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31
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Moreau M, Raguin O, Vrigneaud JM, Collin B, Bernhard C, Tizon X, Boschetti F, Duchamp O, Brunotte F, Denat F. DOTAGA-trastuzumab. A new antibody conjugate targeting HER2/Neu antigen for diagnostic purposes. Bioconjug Chem 2012; 23:1181-8. [PMID: 22519915 DOI: 10.1021/bc200680x] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Improved bifunctional chelating agents (BFC) are required for indium-111 radiolabeling of monoclonal antibodies (mAbs) under mild conditions to yield stable, target-specific agents. 2,2',2"-(10-(2,6-Dioxotetrahydro-2H-pyran-3-yl)-1,4,7,10-tetraazacyclododecane-1,4,7-triyl)triacetic acid (DOTAGA-anhydride) was evaluated for mAb conjugation and labeling with indium-111. The DOTA analogue was synthesized and conjugated to trastuzumab-which targets the HER2/neu receptor-in mild conditions (PBS pH 7.4, 25 °C, 30 min) and gave a mean degree of conjugation of 2.6 macrocycle per antibody. Labeling of this immunoconjugate with indium-111 was performed in 75% yield after 1 h at 37 °C, and the proportion of (111)In-DOTAGA-trastuzumab reached 97% after purification. The affinity of DOTAGA-trastuzumab was 5.5 ± 0.6 nM as evaluated by in vitro saturation assays using HCC1954 breast cancer cell line. SPECT/CT imaging and biodistribution studies were performed in mice bearing breast cancer BT-474 xenografts. BT-474 tumors were clearly visualized on SPECT images at 24, 48, and 72 h postinjection. The tumor uptake of [(111)In-DOTAGA]-trastuzumab reached 65%ID/g 72 h postinjection. These results show that the DOTAGA BFC appears to be a valuable tool for biologics conjugation.
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Affiliation(s)
- Mathieu Moreau
- Institut de Chimie Moléculaire de l'Université de Bourgogne , UMR CNRS 6302, 21078 Dijon Cedex, France
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32
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Liolios CC, Zikos C, Fragogeorgi E, Benaki D, Pelecanou M, Pirmettis I, Ioannidis N, Sanakis Y, Raptopoulou CP, Psycharis V, Terzis A, Boschetti F, Papadopoulos MS, Sivolapenko G, Varvarigou AD. A Bombesin Copper Complex Based on a Bifunctional Cyclam Derivative. Eur J Inorg Chem 2012. [DOI: 10.1002/ejic.201200049] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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Abstract
An experimental program has been carried out in order to investigate the mechanical behavior of porcine corneas. We report the results of inflation tests on the whole cornea and uniaxial tests on excised corneal strips, performed on 51 fresh porcine eyes. Uniaxial tests have been performed on specimens cut from previously inflated corneas. The cornea behavior is characterized by means of elastic stiffness, measured on both average pressure-apex displacement and average uniaxial stress-strain curves; and by means of transversal contraction coefficient, peak stress, and failure stress measured on uniaxial stress-strain curves. Uniaxial tests performed on excised strips allowed to measure the anisotropy in the corneal stiffness and to compare the stiffness of the cornea with the one of the sclera. Viscous properties of the cornea have been obtained through uniaxial relaxation curves on excised corneal strips. The relevant geometrical parameters have been measured and, with the aid of the elastic thin shell theory, a stress-strain curve has been derived from the average inflation test data and compared with similar data available in the literature. The experimental system has been developed in view of future applications to the mechanical testing of both porcine and human corneas.
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Affiliation(s)
- F. Boschetti
- Laboratory of Biological Structure Mechanics, Dipartimento di Ingegneria Strutturale, Politecnico di Milano, Piazza Leonardo da Vinci 32, Milano, Italy, 20133; IRCCS Istituto Ortopedico Galeazzi, Milano, Italy, 20161
| | - V. Triacca
- Institute of Bioengineering, École Polytechnique Fédérale de Lausanne, Lausanne, Switzerland 1015
| | - L. Spinelli
- SKE S.r.l., via Durando 38/A, Milano, Italy, 20161
| | - A. Pandolfi
- Dipartimento di Ingegneria Strutturale, Politecnico di Milano, Piazza Leonardo da Vinci 32, Milano, Italy, 20133
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Lux F, Mignot A, Mowat P, Louis C, Dufort S, Bernhard C, Denat F, Boschetti F, Brunet C, Antoine R, Dugourd P, Laurent S, Vander Elst L, Muller R, Sancey L, Josserand V, Coll JL, Stupar V, Barbier E, Rémy C, Broisat A, Ghezzi C, Le Duc G, Roux S, Perriat P, Tillement O. Ultrasmall rigid particles as multimodal probes for medical applications. Angew Chem Int Ed Engl 2011; 50:12299-303. [PMID: 22057640 DOI: 10.1002/anie.201104104] [Citation(s) in RCA: 145] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2011] [Revised: 09/12/2011] [Indexed: 11/08/2022]
Affiliation(s)
- François Lux
- Laboratoire de Physico-Chimie des Matériaux Luminescents, UMR 5620 CNRS-Université Claude Bernard Lyon 1, Université de Lyon, 69622 Villeurbanne Cedex, France
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35
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Lux F, Mignot A, Mowat P, Louis C, Dufort S, Bernhard C, Denat F, Boschetti F, Brunet C, Antoine R, Dugourd P, Laurent S, Elst LV, Muller R, Sancey L, Josserand V, Coll JL, Stupar V, Barbier E, Rémy C, Broisat A, Ghezzi C, Le Duc G, Roux S, Perriat P, Tillement O. Ultrasmall Rigid Particles as Multimodal Probes for Medical Applications. Angew Chem Int Ed Engl 2011. [DOI: 10.1002/ange.201104104] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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De Santis G, Lennon AB, Boschetti F, Verhegghe B, Verdonck P, Prendergast PJ. How can cells sense the elasticity of a substrate? An analysis using a cell tensegrity model. Eur Cell Mater 2011; 22:202-13. [PMID: 22048898 DOI: 10.22203/ecm.v022a16] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023] Open
Abstract
A eukaryotic cell attaches and spreads on substrates, whether it is the extracellular matrix naturally produced by the cell itself, or artificial materials, such as tissue-engineered scaffolds. Attachment and spreading require the cell to apply forces in the nN range to the substrate via adhesion sites, and these forces are balanced by the elastic response of the substrate. This mechanical interaction is one determinant of cell morphology and, ultimately, cell phenotype. In this paper we use a finite element model of a cell, with a tensegrity structure to model the cytoskeleton of actin filaments and microtubules, to explore the way cells sense the stiffness of the substrate and thereby adapt to it. To support the computational results, an analytical 1D model is developed for comparison. We find that (i) the tensegrity hypothesis of the cytoskeleton is sufficient to explain the matrix-elasticity sensing, (ii) cell sensitivity is not constant but has a bell-shaped distribution over the physiological matrix-elasticity range, and (iii) the position of the sensitivity peak over the matrix-elasticity range depends on the cytoskeletal structure and in particular on the F-actin organisation. Our model suggests that F-actin reorganisation observed in mesenchymal stem cells (MSCs) in response to change of matrix elasticity is a structural-remodelling process that shifts the sensitivity peak towards the new value of matrix elasticity. This finding discloses a potential regulatory role of scaffold stiffness for cell differentiation.
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Affiliation(s)
- G De Santis
- Institute Biomedical Technology, Ghent University, De Pintelaan 185, Block B, BE-9000 Gent, Belgium.
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37
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Moriondo A, Marcozzi C, Bianchin F, Passi A, Boschetti F, Lattanzio S, Severgnini P, Pelosi P, Negrini D. Impact of respiratory pattern on lung mechanics and interstitial proteoglycans in spontaneously breathing anaesthetized healthy rats. Acta Physiol (Oxf) 2011; 203:331-41. [PMID: 21518268 DOI: 10.1111/j.1748-1716.2011.02317.x] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [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
AIM The aim of this study was to investigate the effect of different pattern of spontaneous breathing on the respiratory mechanics and on the integrity of the pulmonary extracellular matrix. METHODS Experiments were performed on adult healthy rats in which different spontaneously breathing pattern was elicited through administration of two commonly used anaesthetic mixtures: pentobarbital/urethane (P/U) and ketamine/medetomidine (K/M). The animals (five per group) were randomized and left to spontaneously breath for 10 min (P/U-sham; K/M-sham) or for 4h (P/U-4h; K/M-4h), targeting the anaesthesia level to obtain a tidal volume of about 8 mL kg(-1) body wt. At the end of the experiment, lung matrix integrity was assessed through determination of the glycosaminoglycans (GAGs) content in the lung parenchyma. RESULTS Compared with K/M, anaesthesia with P/U cocktail induced: (1) a higher respiratory rate and minute ventilation attained with lower P(a) CO(2) ; (2) a higher pressure-time-product and work of breathing per minute; (3) a lower static lung compliance; (4) an increased activation of lung tissue metalloproteases; and (5) greater extraction of pulmonary interstitial GAGs. CONCLUSIONS This study suggests that the breathing pattern induced by the different anaesthetic regimen may damage the pulmonary interstitium even during spontaneous breathing at physiological tidal volumes.
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Affiliation(s)
- A Moriondo
- Department of Experimental and Clinical Biomedical Sciences, University of Insubria, Varese, Italy
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38
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Sosio C, Boschetti F, Mangiavini L, Scotti C, Manzotti S, Buragas MS, Biressi S, Fraschini G, Gigante A, Peretti GM. Blood exposure has a negative effect on engineered cartilage. Knee Surg Sports Traumatol Arthrosc 2011; 19:1035-42. [PMID: 20981535 DOI: 10.1007/s00167-010-1296-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/17/2010] [Accepted: 10/05/2010] [Indexed: 10/18/2022]
Abstract
PURPOSE The aim of this study was to investigate the in vitro effect of different concentrations of blood on the morphological and biochemical properties of engineered cartilage. Previous studies have demonstrated a negative effect of blood on native cartilage; however, the effect of the contact of blood on engineered cartilage is unclear. METHODS Articular chondrocytes were isolated from swine joints, expanded in monolayer culture, and seeded onto collagen membranes. The seeded membranes were cultured for 3 days in the presence of different concentrations of peripheral blood. Some samples were retrieved at the end of the blood contact, others after 21 additional days of standard culture conditions, in order to investigate the "long-term effect" of the blood contact. RESULTS All seeded samples showed an increase in the weight and an evident cartilage-like matrix production. A concentration-dependent reduction in the mitochondrial activity due to blood contact was shown at the earlier culture time, followed by a partial recover at the longer culture time. CONCLUSION A blood contact of 3 days affected the chondrocytes' activity and determined a delay in the maturation of the engineered cartilage. These findings have clinical relevance, as autologous chondrocytes seeded onto biological scaffolds has become an established surgical method for articular cartilage repair. Therefore, further investigation into material sciences should be encouraged for the development of scaffold protecting the reparative cells from the blood insult.
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Affiliation(s)
- C Sosio
- Department of Orthopaedics and Traumatology, San Raffaele Scientific Institute, Milan, Italy
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Boschetti F, Tomei AA, Turri S, Swartz MA, Levi M. Design, fabrication, and characterization of a composite scaffold for bone tissue engineering. Int J Artif Organs 2009; 31:697-707. [PMID: 18825642 DOI: 10.1177/039139880803100803] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Poly(lactide-co-glycolide) (PLGA) scaffolds have been successfully used in bone tissue engineering, with or without hydroxyapatite (HA) and with a macroporosity given either by simple PLGA sphere packaging and/or by leaching out NaCl. The objective of this work was the optimization of the design parameters for bone tissue engineering scaffolds made by sintering microspheres of PLGA, HA nanocrystals for matrix reinforcement and osteoconduction, and salt crystals for macroporosity and control of matrix pore size. Microsphere fabrication by a single-emulsion and solvent evaporation technique was first optimized to obtain a high yield of PLGA microspheres with a diameter between 80 and 300 microm. The influence of the sintering process and matrix composition on the scaffold structure was then evaluated morphologically and mechanically. Three scaffold types were tested for biocompatibility by culturing with human fibroblasts for up to 14 days. The most important parameters to obtain microspheres with the selected diameter range were the viscosity ratio of the dispersed phase to the continuous phase and the relative volume fraction of the 2 phases. The Young's modulus and the ultimate strength of the sintered matrices ranged between 168-265 MPa and 6-17 MPa, respectively, within the range for trabecular bone. Biocompatibility was demonstrated by fibroblast adhesion, proliferation, and spreading throughout the matrix. This work builds upon previous work of the PLGA/HA sintering technique to give design criteria for fabricating a bone tissue engineered matrix with optimized morphological, functional, and biological properties to fit the requirements of bone replacements.
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Affiliation(s)
- F Boschetti
- LaBS, Department of Structural Engineering, Politecnico di Milano, Milan and IRCCS Istituto Ortopedico Galeazzi, Milan, Italy.
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41
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Moretti M, Freed L, Padera R, Laganà K, Boschetti F, Raimondi M. An integrated experimental–computational approach for the study of engineered cartilage constructs subjected to combined regimens of hydrostatic pressure and interstitial perfusion. Biomed Mater Eng 2008. [DOI: 10.3233/bme-2008-0536] [Citation(s) in RCA: 4] [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: 11/15/2022]
Affiliation(s)
- M. Moretti
- IRCCS Galeazzi Orthopedic Institute, Milano, Italy
- Harvard-MIT Division of Health Sciences & Technology, Cambridge, MA, USA
| | - L.E. Freed
- Harvard-MIT Division of Health Sciences & Technology, Cambridge, MA, USA
| | - R.F. Padera
- Department of Pathology, Brigham and Women's Hospital, Boston, MA, USA
| | - K. Laganà
- LaBS, Department of Structural Engineering, Politecnico di Milano, Milano, Italy
| | - F. Boschetti
- LaBS, Department of Structural Engineering, Politecnico di Milano, Milano, Italy
| | - M.T. Raimondi
- IRCCS Galeazzi Orthopedic Institute, Milano, Italy
- LaBS, Department of Structural Engineering, Politecnico di Milano, Milano, Italy
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42
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Moretti M, Freed LE, Padera RF, Laganà K, Boschetti F, Raimondi MT. An integrated experimental-computational approach for the study of engineered cartilage constructs subjected to combined regimens of hydrostatic pressure and interstitial perfusion. Biomed Mater Eng 2008; 18:273-278. [PMID: 19065033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Affiliation(s)
- M Moretti
- IRCCS Galeazzi Orthopedic Institute, Milano, Italy.
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43
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Sosio C, Boschetti F, Bevilacqua C, Mangiavini L, Scotti C, Buragas MS, Biressi S, Fraschini G, Gigante A, Peretti GM. Effect of blood on the morphological, biochemical and biomechanical properties of engineered cartilage. Knee Surg Sports Traumatol Arthrosc 2007; 15:1251-7. [PMID: 17497129 DOI: 10.1007/s00167-007-0339-3] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/16/2007] [Accepted: 03/20/2007] [Indexed: 10/23/2022]
Abstract
The use of autologous chondrocytes seeded onto a biological scaffold represents a current valid tool for cartilage repair. However, the effect of the contact of blood to the engineered construct is unknown. The aim of this work was to investigate in vitro the effect of blood on the morphological, biochemical and biomechanical properties of engineered cartilage. Articular chondrocytes were enzymatically isolated from swine joints, expanded in monolayer culture and seeded onto collagen membranes for 2 weeks. Then, the seeded membranes were placed for 3 days in contact with peripheral blood, which was obtained from animals of the same species and diluted with a standard medium. As controls, some samples were left in the standard medium. After the 3 days' contact, some samples were retrieved for analysis; others were returned to standard culture conditions for 21 additional days, in order to investigate the "long-term effect" of the blood contact. Upon retrieval, all seeded samples showed increasing sizes and weights over time. However, the samples exposed to blood presented lower values with respect to the controls. Biochemical evaluation demonstrated a reduction in the mitochondrial activity due to blood contact at the early culture time (3 days post blood contact), followed by a partial recovery at the longer culture time (21 days post blood contact). Histological evaluation demonstrated evident cartilage-like matrix production for both groups. Biomechanical data showed a reduction of the values, followed by stabilization, regardless of the presence of blood. Based on the data obtained in this study, we can conclude that blood contact affects the chondrocyte activity and determines a delay in the dimensional growth of the engineered cartilage; however, at the experimental times utilized in this study, this delay did not affect the histological pattern and the biomechanical properties of the construct.
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Affiliation(s)
- C Sosio
- Department of Orthopaedics and Traumatology, San Raffaele Scientific Institute, Via Olgettina 60, 20132, Milan, Italy
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Denat F, Tripier R, Boschetti F, Espinosa E, Guilard R. Reaction of polyamines with diethyloxalate: a convenient route for the synthesis of tetraazacycloalkanes. ARKIVOC 2006. [DOI: 10.3998/ark.5550190.0007.415] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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45
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Gervaso F, Pennati G, Vena P, Boschetti F. Numerical modelling of cartilage based on compression tests. J Biomech 2006. [DOI: 10.1016/s0021-9290(06)84654-3] [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: 11/16/2022]
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46
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Boschetti F, Camera M, Socci L, Spirito R, Di Martino E. Mechanical properties of intraluminal thrombus from abdominal aortic aneurysm under compressive loads. J Biomech 2006. [DOI: 10.1016/s0021-9290(06)85506-5] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Abstract
[reaction: see text] Bisaminal type compounds obtained by condensation of pyruvic aldehyde with the suitable open-chain tetraamine followed by cyclization with either dibromoethane or dibromopropane can be regioselectively quaternized by a wide range of alkylating agents. Removal of the bisaminal bridge yields the monosubstituted tetraazamacrocycle or bismacrocycle. Further functionalization allows the preparation of bifunctional ligands or trisubstituted macrocycles. The structure of six compounds was solved by X-ray diffraction, and the unexpected results are rationalized according to the molecular modeling calculations.
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Affiliation(s)
- Frédéric Boschetti
- Université de Bourgogne, Laboratoire d'Ingénierie Moléculaire pour la Séparation et les Applications des Gaz, LIMSAG UMR 5633, Faculté des Sciences Gabriel, 6 boulevard Gabriel, 21100 Dijon, France
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Boschetti F, Denat F, Espinosa E, Lagrange JM, Guilard R. A powerful route to C-functionalised tetraazamacrocyclesElectronic supplementary information (ESI) available: synthesis and spectroscopic data of different C-functionalised macrocycles. See http://www.rsc.org/suppdata/cc/b3/b315285e/. Chem Commun (Camb) 2004:588-9. [PMID: 14973621 DOI: 10.1039/b315285e] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The bisaminal template approach represents a powerful synthetic tool for the preparation of various C-functionalised tetraazacycloalkanes which are efficient precursors of bifunctional chelating agents.
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Affiliation(s)
- Frédéric Boschetti
- Laboratoire d'Ingénierie Moléculaire pour la Separation et les Applications des Gaz, LIMSAG UMR 5633, Faculté des Sciences Gabriel, 6 Bd Gabriel 21100, Dijon, France
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Raimondi MT, Boschetti F, Falcone L, Fiore GB, Remuzzi A, Marinoni E, Marazzi M, Pietrabissa R. Mechanobiology of engineered cartilage cultured under a quantified fluid-dynamic environment. Biomech Model Mechanobiol 2002; 1:69-82. [PMID: 14586708 DOI: 10.1007/s10237-002-0007-y] [Citation(s) in RCA: 69] [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] [Indexed: 10/27/2022]
Abstract
Natural cartilage remodels both in vivo and in vitro in response to mechanical forces and hence mechanical stimulation is believed to have a potential as a tool to modulate extra-cellular matrix synthesis in tissue-engineered cartilage. Fluid-induced shear is known to enhance chondrogenesis on animal cells. A well-defined hydrodynamic environment is required to study the biochemical response to shear of three-dimensional engineered cell systems. We have developed a perfused-column bioreactor in which the culture medium flows through chondrocyte-seeded porous scaffolds, together with a computational fluid-dynamic model of the flow through the constructs' microstructure. A preliminary experiment of human chondrocyte growth under static versus dynamic conditions is described. The median shear stress imposed on the cells in the bioreactor culture, as predicted by the CFD model, is 3 x 10(-3) Pa (0.03 dyn/cm(2)) at a flow rate of 0.5 ml/min corresponding to an inlet fluid velocity of 44.2 mum/s. Providing a fluid-dynamic environment to the cells yielded significant differences in cell morphology and in construct structure.
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Affiliation(s)
- M T Raimondi
- Department of Bioengineering, Politecnico di Milano, Piazza Leonardo da Vinci, 32, 20133 Milan, Italy.
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Abstract
In order to move towards extracorporeal circulation (ECC) automation, a virtual simulation of the process was designed. The ECC model is composed of a virtual patient linked to a virtual ECC circuit. A user interface panel allows to set control parameters for the simulation and to visualize results. It is possible to switch between manual and automatic control. Meaningful hemodynamic and hematochemical variables are continuously shown along with a score (from 0 to 10). The virtual model can play a crucial role in educating and training the personnel devoted to the managing of the heart-lung machine.
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Affiliation(s)
- F Boschetti
- Dipartimento di Bioingegneria, Politecnico di Milano, Piazza. L da Vinci 32, 20133 Milano, Italy.
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