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Bamogo P, Tiendrébéogo F, Brugidou C, Sérémé D, Djigma FW, Simporé J, Lacombe S. Rice yellow mottle virus is a suitable amplicon vector for an efficient production of an anti-leishmianiasis vaccine in Nicotiana benthamiana leaves. BMC Biotechnol 2024; 24:21. [PMID: 38658899 PMCID: PMC11044499 DOI: 10.1186/s12896-024-00851-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2023] [Accepted: 04/17/2024] [Indexed: 04/26/2024] Open
Abstract
BACKGROUND Since the 2000's, plants have been used as bioreactors for the transient production of molecules of interest such as vaccines. To improve protein yield, "amplicon" vectors based on plant viruses are used. These viral constructs, engineered to carry the gene of interest replicate strongly once introduced into the plant cell, allowing significant accumulation of the protein. Here, we evaluated the suitability of the monocot-infecting RNA virus Rice yellow mottle virus (RYMV) as an amplicon vector. The promastigote surface antigen (PSA) of the protozoan Leishmania was considered as a protein of interest due to its vaccine properties against canine leishmaniasis. RESULTS Since P1 (ORF1) and CP (ORF3) proteins are not strictly necessary for viral replication, ORF1 was deleted and the PSA gene was substituted to ORF3 in the RYMV-based vector. We evaluated its expression in the best described plant bioreactor system, Nicotiana benthamiana which, unlike rice, allows transient transformation by Agrobacterium. Despite not being its natural host, we demonstrated a low level of RYMV-based vector replication in N. benthamiana leaves. Under optimized ratio, we showed that the P19 silencing suppressor in combination with the missing viral CP ORF significantly enhanced RYMV amplicon replication in N. benthamiana. Under these optimized CP/P19 conditions, we showed that the RYMV amplicon replicated autonomously in the infiltrated N. benthamiana cells, but was unable to move out of the infiltrated zones. Finally, we showed that when the RYMV amplicon was expressed under the optimized conditions we set up, it allowed enhanced PSA protein accumulation in N. benthamiana compared to the PSA coding sequence driven by the 35S promoter without amplicon background. CONCLUSION This work demonstrates that a non-dicot-infecting virus can be used as an amplicon vector for the efficient production of proteins of interest such as PSA in N. benthamiana leaves.
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Affiliation(s)
- Pka Bamogo
- Institut de L'Environnement et de Recherches Agricoles (INERA), LMI Patho-Bios Laboratoire de Virologie et de Biotechnologies Végétales, Ouagadougou, Burkina Faso.
- Université Joseph Ki-Zerbo, Laboratoire de biologie moléculaire et de Génétique (LABIOGENE), Ecole Doctorale Sciences et Technologie, Centre de recherche biomoléculaire Piétro Annigoni (CERBA), Ouagadougou, Burkina Faso.
- PHIM Plant Health Institute Montpellier, Univ Montpellier, IRD, CIRAD, INRAE, Institut Agro, Montpellier, France.
| | - F Tiendrébéogo
- Institut de L'Environnement et de Recherches Agricoles (INERA), LMI Patho-Bios Laboratoire de Virologie et de Biotechnologies Végétales, Ouagadougou, Burkina Faso
| | - C Brugidou
- Université Joseph Ki-Zerbo, Laboratoire de biologie moléculaire et de Génétique (LABIOGENE), Ecole Doctorale Sciences et Technologie, Centre de recherche biomoléculaire Piétro Annigoni (CERBA), Ouagadougou, Burkina Faso
- PHIM Plant Health Institute Montpellier, Univ Montpellier, IRD, CIRAD, INRAE, Institut Agro, Montpellier, France
| | - D Sérémé
- Institut de L'Environnement et de Recherches Agricoles (INERA), LMI Patho-Bios Laboratoire de Virologie et de Biotechnologies Végétales, Ouagadougou, Burkina Faso
| | - F W Djigma
- Université Joseph Ki-Zerbo, Laboratoire de biologie moléculaire et de Génétique (LABIOGENE), Ecole Doctorale Sciences et Technologie, Centre de recherche biomoléculaire Piétro Annigoni (CERBA), Ouagadougou, Burkina Faso
| | - J Simporé
- Université Joseph Ki-Zerbo, Laboratoire de biologie moléculaire et de Génétique (LABIOGENE), Ecole Doctorale Sciences et Technologie, Centre de recherche biomoléculaire Piétro Annigoni (CERBA), Ouagadougou, Burkina Faso
| | - S Lacombe
- Université Joseph Ki-Zerbo, Laboratoire de biologie moléculaire et de Génétique (LABIOGENE), Ecole Doctorale Sciences et Technologie, Centre de recherche biomoléculaire Piétro Annigoni (CERBA), Ouagadougou, Burkina Faso
- PHIM Plant Health Institute Montpellier, Univ Montpellier, IRD, CIRAD, INRAE, Institut Agro, Montpellier, France
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Yang X, Porcel E, Marichal L, Gonzalez-Vargas C, Khitous A, Salado-Leza D, Li X, Renault JP, Pin S, Remita H, Wien F, Lacombe S. Human Serum Albumin in the Presence of Small Platinum Nanoparticles. J Pharm Sci 2024:S0022-3549(24)00043-1. [PMID: 38336007 DOI: 10.1016/j.xphs.2024.02.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2022] [Revised: 02/01/2024] [Accepted: 02/01/2024] [Indexed: 02/12/2024]
Abstract
Noble metal materials, especially platinum nanoparticles (Pt NPs), have immense potential in nanomedicine as therapeutic agents on account of their high electron density and their high surface area. Intravenous injection is proposed as the best mode to deliver the product to patients. However, our understanding of the reaction of nanoparticles with blood components, especially proteins, is far behind the explosive development of these agents. Using synchrotron radiation circular dichroism (SRCD), we investigated the structural and stability changes of human serum albumin (HSA) upon interaction with PEG-OH coated Pt NPs at nanomolar concentrations, conditions potentially encountered for intravenous injection. There is no strong complexation found between HSA and Pt NPs. However, for the highest molar ratio of NP:HSA of 1:1, an increase of 18 °C in the thermal unfolding of HSA was observed, which is attributed to increased thermal stability of HSA generated by preferential hydration. This work proposes a new and fast method to probe the potential toxicity of nanoparticles intended for clinical use with intravenous injection.
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Affiliation(s)
- Xiaomin Yang
- Université Paris-Saclay, CNRS, Institut des Sciences Moléculaires d'Orsay, 91405 Orsay, France
| | - Erika Porcel
- Université Paris-Saclay, CNRS, Institut des Sciences Moléculaires d'Orsay, 91405 Orsay, France
| | - Laurent Marichal
- Université Paris-Saclay, CEA, CNRS, NIMBE, 91191 Gif-sur-Yvette, France
| | - Cesar Gonzalez-Vargas
- Université Paris-Saclay, CNRS, Institut des Sciences Moléculaires d'Orsay, 91405 Orsay, France
| | - Amine Khitous
- Université Paris-Saclay, CNRS, Institut des Sciences Moléculaires d'Orsay, 91405 Orsay, France; Université Paris-Saclay, CEA, CNRS, NIMBE, 91191 Gif-sur-Yvette, France
| | - Daniela Salado-Leza
- Université Paris-Saclay, CNRS, Institut des Sciences Moléculaires d'Orsay, 91405 Orsay, France; CONAHCYT, Institute of Physics, Autonomous University of San Luis Potosi, 78295 San Luis Potosi, Mexico
| | - Xue Li
- Université Paris-Saclay, CNRS, Institut des Sciences Moléculaires d'Orsay, 91405 Orsay, France
| | | | - Serge Pin
- Université Paris-Saclay, CEA, CNRS, NIMBE, 91191 Gif-sur-Yvette, France
| | - Hynd Remita
- Université Paris-Saclay, CNRS, Institut de Chimie Physique, 91405 Orsay, France
| | - Frank Wien
- Synchrotron Soleil, 91190 Saint-Aubin, France.
| | - Sandrine Lacombe
- Université Paris-Saclay, CNRS, Institut des Sciences Moléculaires d'Orsay, 91405 Orsay, France.
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Maury P, Mondini M, Chargari C, Darricau A, Shahin M, Ammari S, Bockel S, Genestie C, Wu TD, Lux F, Tillement O, Lacombe S, Deutsch E, Robert C, Porcel E. Clinical transfer of AGuIX®-based radiation treatments for locally advanced cervical cancer: MR quantification and in vitro insights in the NANOCOL clinical trial framework. Nanomedicine 2023; 50:102676. [PMID: 37084803 DOI: 10.1016/j.nano.2023.102676] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Revised: 03/30/2023] [Accepted: 03/31/2023] [Indexed: 04/23/2023]
Abstract
Clinical trials incorporating metallic nanoparticles (NPs) have recently begun. Radiotherapy planning does not take into account NPs concentrations observed in the patients' target volumes. In the framework of the NANOCOL clinical trial including patients treated for locally advanced cervical cancers, this study proposes a complete method to evaluate the radiation-induced biological effects of NPs. For this, calibration phantom was developed and MRI sequences with variable flip angles were acquired. This process allowed the quantification of NPs in the tumor of 4 patients, which was compared to the results of mass spectrometry obtained from 3 patient biopsies. The concentration of the NPs was reproduced in 3D cell models. Based on clonogenic assays, the radio-enhancement effects were quantified for radiotherapy and brachytherapy, and the impact in terms of local control was evaluated. T1 signal change in GTVs revealed NPs accumulation ~12.4 μmol/L, in agreement with mass spectrometry. Radio-enhancement effects of about 15 % at 2 Gy were found for both modalities, with a positive impact on local tumor control. Even if further follow-up of patients in this and subsequent clinical trials will be necessary to assess the reliability of this proof of concept, this study opens the way to the integration of a dose modulation factor to better take into account the impact of NPs in radiotherapy treatment.
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Affiliation(s)
- Pauline Maury
- Université Paris-Saclay, CNRS, Institut des Sciences Moléculaires d'Orsay, 91405 Orsay, France; Université Paris-Saclay, Gustave Roussy, Department of Radiotherapy, 94805 Villejuif, France.
| | - Michele Mondini
- Université Paris-Saclay, Gustave Roussy, INSERM, Radiothérapie Moléculaire et Innovation Thérapeutique, 94800 Villejuif, France
| | - Cyrus Chargari
- Université Paris-Saclay, Gustave Roussy, Department of Radiotherapy, 94805 Villejuif, France; Université Paris-Saclay, Gustave Roussy, INSERM, Radiothérapie Moléculaire et Innovation Thérapeutique, 94800 Villejuif, France
| | - Arthur Darricau
- Université Paris-Saclay, Gustave Roussy, INSERM, Radiothérapie Moléculaire et Innovation Thérapeutique, 94800 Villejuif, France
| | - Mona Shahin
- Université Paris-Saclay, CNRS, Institut des Sciences Moléculaires d'Orsay, 91405 Orsay, France; Université Paris-Saclay, Gustave Roussy, INSERM, Radiothérapie Moléculaire et Innovation Thérapeutique, 94800 Villejuif, France
| | - Samy Ammari
- Université Paris-Saclay, Gustave Roussy, Department of Imaging, 94805 Villejuif, France; ELSAN Department of Radiology, Institut de Cancérologie Paris Nord, Sarcelles, France
| | - Sophie Bockel
- Université Paris-Saclay, Gustave Roussy, INSERM, Radiothérapie Moléculaire et Innovation Thérapeutique, 94800 Villejuif, France
| | - Catherine Genestie
- Université Paris-Saclay, Gustave Roussy, Department of Pathology, 94805 Villejuif, France
| | - Ting-Di Wu
- Institut Curie, PSL University, Université Paris-Saclay, CNRS UAR2016, Inserm US43, Multimodal Imaging Center, 91400 Orsay, France
| | - François Lux
- Institut Lumière Matière (ILM UMR 5306), Université Claude Bernard Lyon 1, CNRS-UCBL, 69622 Villeurbanne, France; Institut Universitaire de France (IUF), France
| | - Olivier Tillement
- Institut Lumière Matière (ILM UMR 5306), Université Claude Bernard Lyon 1, CNRS-UCBL, 69622 Villeurbanne, France
| | - Sandrine Lacombe
- Université Paris-Saclay, CNRS, Institut des Sciences Moléculaires d'Orsay, 91405 Orsay, France
| | - Eric Deutsch
- Université Paris-Saclay, Gustave Roussy, Department of Radiotherapy, 94805 Villejuif, France; Université Paris-Saclay, Gustave Roussy, INSERM, Radiothérapie Moléculaire et Innovation Thérapeutique, 94800 Villejuif, France
| | - Charlotte Robert
- Université Paris-Saclay, Gustave Roussy, Department of Radiotherapy, 94805 Villejuif, France; Université Paris-Saclay, Gustave Roussy, INSERM, Radiothérapie Moléculaire et Innovation Thérapeutique, 94800 Villejuif, France
| | - Erika Porcel
- Université Paris-Saclay, CNRS, Institut des Sciences Moléculaires d'Orsay, 91405 Orsay, France
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Yang X, Tran VL, Remita H, Savina F, Denis C, Kereselidze D, Jego B, Lacombe S, Porcel E, Truillet C. Pharmacokinetics derived from PET imaging of inspiring radio-enhancer platinum nanoparticles. Nanomedicine 2022; 46:102603. [PMID: 36116695 DOI: 10.1016/j.nano.2022.102603] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/12/2022] [Revised: 08/24/2022] [Accepted: 09/07/2022] [Indexed: 06/15/2023]
Abstract
Personalized medicine approach in radiotherapy requires the delivery of precise dose to the tumor. The concept is to increase the effectiveness of radiotherapy while sparing the surrounding heathy tissue. This can be achieved by the use of high-Z metal-based nanoparticles (NPs) as radio-enhancers and PET imaging for mapping NPs distribution to guide the irradiation. In the present study, radio-enhancing platinum NPs were radiolabeled and imaged to assess their pharmacokinetics over time. PET imaging of these NPs revealed high enhanced permeation and retention effect. The maximal tumor accumulation (4.8 ± 0.8 %ID/cc) was observed at 24 h post-injection along with persistent accumulation of the NPs, especially at the tumor ring, even after several days. These properties positively suggest the potential clinical use of these NPs.
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Affiliation(s)
- Xiaomin Yang
- Université Paris-Saclay, CNRS, Institut des Sciences Moléculaires d'Orsay, 91405 Orsay, France.
| | - Vu Long Tran
- Université Paris-Saclay, CEA, CNRS, Inserm, BioMaps, Orsay 91401, France.
| | - Hynd Remita
- Université Paris-Saclay, CNRS, Institut de Chimie Physique, 91405 Orsay, France.
| | - Farah Savina
- Université Paris-Saclay, CNRS, Institut des Sciences Moléculaires d'Orsay, 91405 Orsay, France.
| | - Caroline Denis
- Université Paris-Saclay, CEA, CNRS, Inserm, BioMaps, Orsay 91401, France.
| | | | - Benoit Jego
- Université Paris-Saclay, CEA, CNRS, Inserm, BioMaps, Orsay 91401, France.
| | - Sandrine Lacombe
- Université Paris-Saclay, CNRS, Institut des Sciences Moléculaires d'Orsay, 91405 Orsay, France.
| | - Erika Porcel
- Université Paris-Saclay, CNRS, Institut des Sciences Moléculaires d'Orsay, 91405 Orsay, France.
| | - Charles Truillet
- Université Paris-Saclay, CEA, CNRS, Inserm, BioMaps, Orsay 91401, France.
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Goodarzi S, Prunet A, Rossetti F, Bort G, Tillement O, Porcel E, Lacombe S, Wu TD, Guerquin-Kern JL, Delanoë-Ayari H, Lux F, Rivière C. Correction: Quantifying nanotherapeutic penetration using a hydrogel-based microsystem as a new 3D in vitro platform. Lab Chip 2022; 22:652-653. [PMID: 34918015 DOI: 10.1039/d1lc90127c] [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] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Correction for 'Quantifying nanotherapeutic penetration using a hydrogel-based microsystem as a new 3D in vitro platform' by Saba Goodarzi et al., Lab Chip, 2021, 21, 2495-2510, DOI: 10.1039/D1LC00192B.
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Affiliation(s)
- Saba Goodarzi
- University of Lyon, Université Claude Bernard Lyon 1, CNRS, Institut Lumière Matière, F-69622, Villeurbanne, France.
| | - Audrey Prunet
- University of Lyon, Université Claude Bernard Lyon 1, CNRS, Institut Lumière Matière, F-69622, Villeurbanne, France.
| | - Fabien Rossetti
- University of Lyon, Université Claude Bernard Lyon 1, CNRS, Institut Lumière Matière, F-69622, Villeurbanne, France.
| | - Guillaume Bort
- University of Lyon, Université Claude Bernard Lyon 1, CNRS, Institut Lumière Matière, F-69622, Villeurbanne, France.
| | - Olivier Tillement
- University of Lyon, Université Claude Bernard Lyon 1, CNRS, Institut Lumière Matière, F-69622, Villeurbanne, France.
| | - Erika Porcel
- Université Paris-Saclay, CNRS, Institut des Sciences Moléculaires d'Orsay, 91405, Orsay, France
| | - Sandrine Lacombe
- Université Paris-Saclay, CNRS, Institut des Sciences Moléculaires d'Orsay, 91405, Orsay, France
| | - Ting-Di Wu
- Institut Curie, Université PSL, Paris, France
- Université Paris-Saclay, CNRS, Inserm, Centre d'Imagerie Multimodale, 91401, Orsay, France
| | - Jean-Luc Guerquin-Kern
- Institut Curie, Université PSL, Paris, France
- Université Paris-Saclay, CNRS, Inserm, Centre d'Imagerie Multimodale, 91401, Orsay, France
| | - Hélène Delanoë-Ayari
- University of Lyon, Université Claude Bernard Lyon 1, CNRS, Institut Lumière Matière, F-69622, Villeurbanne, France.
| | - François Lux
- University of Lyon, Université Claude Bernard Lyon 1, CNRS, Institut Lumière Matière, F-69622, Villeurbanne, France.
- Institut Universitaire de France (IUF), France
| | - Charlotte Rivière
- University of Lyon, Université Claude Bernard Lyon 1, CNRS, Institut Lumière Matière, F-69622, Villeurbanne, France.
- Institut Universitaire de France (IUF), France
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Goodarzi S, Prunet A, Rossetti F, Bort G, Tillement O, Porcel E, Lacombe S, Wu TD, Guerquin-Kern JL, Delanoë-Ayari H, Lux F, Rivière C. Quantifying nanotherapeutic penetration using a hydrogel-based microsystem as a new 3D in vitro platform. Lab Chip 2021; 21:2495-2510. [PMID: 34110341 DOI: 10.1039/d1lc00192b] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
The huge gap between 2D in vitro assays used for drug screening and the in vivo 3D physiological environment hampered reliable predictions for the route and accumulation of nanotherapeutics in vivo. For such nanotherapeutics, multi-cellular tumour spheroids (MCTS) are emerging as a good alternative in vitro model. However, the classical approaches to produce MCTS suffer from low yield, slow process, difficulties in MCTS manipulation and compatibility with high-magnification fluorescence optical microscopy. On the other hand, spheroid-on-chip set-ups developed so far require a practical knowledge of microfluidics difficult to transfer to a cell biology laboratory. We present here a simple yet highly flexible 3D model microsystem consisting of agarose-based microwells. Fully compatible with the multi-well plate format conventionally used in cell biology, our simple process enables the formation of hundreds of reproducible spheroids in a single pipetting. Immunostaining and fluorescence imaging including live high-resolution optical microscopy can be performed in situ, with no manipulation of spheroids. As a proof of principle of the relevance of such an in vitro platform for nanotherapeutic evaluation, this study investigates the kinetics and localisation of nanoparticles within colorectal cancer MCTS cells (HCT-116). The nanoparticles chosen are sub-5 nm ultrasmall nanoparticles made of polysiloxane and gadolinium chelates that can be visualized in MRI (AGuIX®, currently implicated in clinical trials as effective radiosensitizers for radiotherapy) and confocal microscopy after addition of Cy5.5. We show that the amount of AGuIX® nanoparticles within cells is largely different in 2D and 3D. Using our flexible agarose-based microsystems, we are able to resolve spatially and temporally the penetration and distribution of AGuIX® nanoparticles within MCTS. The nanoparticles are first found in both extracellular and intracellular space of MCTS. While the extracellular part is washed away after a few days, we evidenced intracellular localisation of AGuIX®, mainly within the lysosomal compartment, but also occasionally within mitochondria. Hence, our agarose-based microsystem appears as a promising 3D in vitro user-friendly platform for investigation of nanotherapeutic transport, ahead of in vivo studies.
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Affiliation(s)
- Saba Goodarzi
- University of Lyon, Université Claude Bernard Lyon 1, CNRS, Institut Lumière Matière, F-69622, Villeurbanne, France.
| | - Audrey Prunet
- University of Lyon, Université Claude Bernard Lyon 1, CNRS, Institut Lumière Matière, F-69622, Villeurbanne, France.
| | - Fabien Rossetti
- University of Lyon, Université Claude Bernard Lyon 1, CNRS, Institut Lumière Matière, F-69622, Villeurbanne, France.
| | - Guillaume Bort
- University of Lyon, Université Claude Bernard Lyon 1, CNRS, Institut Lumière Matière, F-69622, Villeurbanne, France.
| | - Olivier Tillement
- University of Lyon, Université Claude Bernard Lyon 1, CNRS, Institut Lumière Matière, F-69622, Villeurbanne, France.
| | - Erika Porcel
- Université Paris-Saclay, CNRS, Institut des Sciences Moléculaires d'Orsay, 91405, Orsay, France
| | - Sandrine Lacombe
- Université Paris-Saclay, CNRS, Institut des Sciences Moléculaires d'Orsay, 91405, Orsay, France
| | - Ting-Di Wu
- Institut Curie, Université PSL, Paris, France and Université Paris-Saclay, CNRS, Inserm, Centre d'Imagerie Multimodale, 91401, Orsay, France
| | - Jean-Luc Guerquin-Kern
- Institut Curie, Université PSL, Paris, France and Université Paris-Saclay, CNRS, Inserm, Centre d'Imagerie Multimodale, 91401, Orsay, France
| | - Hélène Delanoë-Ayari
- University of Lyon, Université Claude Bernard Lyon 1, CNRS, Institut Lumière Matière, F-69622, Villeurbanne, France.
| | - François Lux
- University of Lyon, Université Claude Bernard Lyon 1, CNRS, Institut Lumière Matière, F-69622, Villeurbanne, France. and Institut Universitaire de France (IUF), France
| | - Charlotte Rivière
- University of Lyon, Université Claude Bernard Lyon 1, CNRS, Institut Lumière Matière, F-69622, Villeurbanne, France. and Institut Universitaire de France (IUF), France
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Maury P, Porcel E, Mau A, Lux F, Tillement O, Mahou P, Schanne-Klein MC, Lacombe S. Rapid Evaluation of Novel Therapeutic Strategies Using a 3D Collagen-Based Tissue-Like Model. Front Bioeng Biotechnol 2021; 9:574035. [PMID: 33681152 PMCID: PMC7929985 DOI: 10.3389/fbioe.2021.574035] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2020] [Accepted: 01/18/2021] [Indexed: 11/25/2022] Open
Abstract
2D cell cultures are commonly used to rapidly evaluate the therapeutic potential of various treatments on living cells. However, the effects of the extracellular matrix (ECM) including the 3D arrangement of cells and the complex physiology of native environment are missing, which makes these models far from in vivo conditions. 3D cell models have emerged in preclinical studies to simulate the impact of the ECM and partially bridge the gap between monolayer cultures and in vivo tissues. To date, the difficulty to handle the existing 3D models, the cost of their production and their poor reproducibility have hindered their use. Here, we present a reproducible and commercially available "3D cell collagen-based model" (3D-CCM) that allows to study the influence of the matrix on nanoagent uptake and radiation effects. The cell density in these samples is homogeneous. The oxygen concentration in the 3D-CCM is tunable, which opens the opportunity to investigate hypoxic effects. In addition, thanks to the intrinsic properties of the collagen, the second harmonic imaging microscopy may be used to probe the whole volume and visualize living cells in real-time. Thus, the architecture and composition of 3D-CCMs as well as the impact of various therapeutic strategies on cells embedded in the ECM is observed directly. Moreover, the disaggregation of the collagen matrix allows recovering of cells without damaging them. It is a major advantage that makes possible single cell analysis and quantification of treatment effects using clonogenic assay. In this work, 3D-CCMs were used to evaluate the correlative efficacies of nanodrug exposure and medical radiation on cells contained in a tumor like sample. A comparison with monolayer cell cultures was performed showing the advantageous outcome and the higher potential of 3D-CCMs. This cheap and easy to handle approach is more ethical than in vivo experiments, thus, giving a fast evaluation of cellular responses to various treatments.
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Affiliation(s)
- Pauline Maury
- Université Paris-Saclay, CNRS, Institut des Sciences Moléculaires d’Orsay, Orsay, France
| | - Erika Porcel
- Université Paris-Saclay, CNRS, Institut des Sciences Moléculaires d’Orsay, Orsay, France
| | - Adrien Mau
- Université Paris-Saclay, CNRS, Institut des Sciences Moléculaires d’Orsay, Orsay, France
| | - François Lux
- Institut Universitaire de France, Paris, France
- Institut Lumière Matière, Université Claude Bernard Lyon 1, UMR 5306 CNRS-UCBL, Villeurbanne, France
| | - Olivier Tillement
- Institut Lumière Matière, Université Claude Bernard Lyon 1, UMR 5306 CNRS-UCBL, Villeurbanne, France
| | - Pierre Mahou
- Laboratoire d’Optique et Biosciences, Ecole Polytechnique, Centre National de la Recherche Scientifique, Institut National de la Santé et de la Recherche Médicale, Institut Polytechnique de Paris, Palaiseau, France
| | - Marie-Claire Schanne-Klein
- Laboratoire d’Optique et Biosciences, Ecole Polytechnique, Centre National de la Recherche Scientifique, Institut National de la Santé et de la Recherche Médicale, Institut Polytechnique de Paris, Palaiseau, France
| | - Sandrine Lacombe
- Université Paris-Saclay, CNRS, Institut des Sciences Moléculaires d’Orsay, Orsay, France
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Peigné C, Trabelssi M, Poinas G, Segui B, Reis Borges R, Lamy P, Lacombe S, Livrozet M, Rebillard X. Performances diagnostiques du test urinaire Xpert®Bladder Cancer Monitor dans la surveillance de patients atteints de tumeurs de vessie n’infiltrant pas le muscle : résultats intermédiaires d’une étude prospective. Prog Urol 2020. [DOI: 10.1016/j.purol.2020.07.165] [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: 11/26/2022]
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Schuemann J, Bagley AF, Berbeco R, Bromma K, Butterworth KT, Byrne HL, Chithrani BD, Cho SH, Cook JR, Favaudon V, Gholami YH, Gargioni E, Hainfeld JF, Hespeels F, Heuskin AC, Ibeh UM, Kuncic Z, Kunjachan S, Lacombe S, Lucas S, Lux F, McMahon S, Nevozhay D, Ngwa W, Payne JD, Penninckx S, Porcel E, Prise KM, Rabus H, Ridwan SM, Rudek B, Sanche L, Singh B, Smilowitz HM, Sokolov KV, Sridhar S, Stanishevskiy Y, Sung W, Tillement O, Virani N, Yantasee W, Krishnan S. Roadmap for metal nanoparticles in radiation therapy: current status, translational challenges, and future directions. Phys Med Biol 2020; 65:21RM02. [PMID: 32380492 DOI: 10.1088/1361-6560/ab9159] [Citation(s) in RCA: 77] [Impact Index Per Article: 19.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
This roadmap outlines the potential roles of metallic nanoparticles (MNPs) in the field of radiation therapy. MNPs made up of a wide range of materials (from Titanium, Z = 22, to Bismuth, Z = 83) and a similarly wide spectrum of potential clinical applications, including diagnostic, therapeutic (radiation dose enhancers, hyperthermia inducers, drug delivery vehicles, vaccine adjuvants, photosensitizers, enhancers of immunotherapy) and theranostic (combining both diagnostic and therapeutic), are being fabricated and evaluated. This roadmap covers contributions from experts in these topics summarizing their view of the current status and challenges, as well as expected advancements in technology to address these challenges.
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Affiliation(s)
- Jan Schuemann
- Department of Radiation Oncology, Massachusetts General Hospital & Harvard Medical School, Boston, MA 02114, United States of America
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10
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Salado-Leza D, Porcel E, Yang X, Štefančíková L, Bolsa-Ferruz M, Savina F, Dragoe D, Guerquin-Kern JL, Wu TD, Hirayama R, Remita H, Lacombe S. Green One-Step Synthesis of Medical Nanoagents for Advanced Radiation Therapy. Nanotechnol Sci Appl 2020; 13:61-76. [PMID: 32848371 PMCID: PMC7426062 DOI: 10.2147/nsa.s257392] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2020] [Accepted: 06/30/2020] [Indexed: 01/02/2023] Open
Abstract
PURPOSE Metal-based nanoparticles (M-NPs) have attracted great attention in nanomedicine due to their capacity to amplify and improve the tumor targeting of medical beams. However, their simple, efficient, high-yield and reproducible production remains a challenge. Currently, M-NPs are mainly synthesized by chemical methods or radiolysis using toxic reactants. The waste of time, loss of material and potential environmental hazards are major limitations. MATERIALS AND METHODS This work proposes a simple, fast and green strategy to synthesize small, non-toxic and stable NPs in water with a 100% production rate. Ionizing radiation is used to simultaneously synthesize and sterilize the containing NPs solutions. The synthesis of platinum nanoparticles (Pt NPs) coated with biocompatible poly(ethylene glycol) ligands (PEG) is presented as proof of concept. The physicochemical properties of NPs were studied by complementary specialized techniques. Their toxicity and radio-enhancing properties were evaluated in a cancerous in vitro model. Using plasmid nanoprobes, we investigated the elementary mechanisms underpinning radio-enhancement. RESULTS AND DISCUSSION Pt NPs showed nearly spherical-like shapes and an average hydrodynamic diameter of 9 nm. NPs are zero-valent platinum successfully coated with PEG. They were found non-toxic and have the singular property of amplifying cell killing induced by γ-rays (14%) and even more, the effects of carbon ions (44%) used in particle therapy. They induce nanosized-molecular damage, which is a major finding to potentially implement this protocol in treatment planning simulations. CONCLUSION This new eco-friendly, fast and simple proposed method opens a new era of engineering water-soluble biocompatible NPs and boosts the development of NP-aided radiation therapies.
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Affiliation(s)
- Daniela Salado-Leza
- Université Paris Saclay, CNRS UMR 8214, Institut des Sciences Moléculaires d’Orsay, 91405 Orsay, France
- Cátedra CONACyT, Faculty of Chemical Sciences, Autonomous University of San Luis Potosí, 78210 San Luis Potosí, Mexico
| | - Erika Porcel
- Université Paris Saclay, CNRS UMR 8214, Institut des Sciences Moléculaires d’Orsay, 91405 Orsay, France
| | - Xiaomin Yang
- Université Paris Saclay, CNRS UMR 8214, Institut des Sciences Moléculaires d’Orsay, 91405 Orsay, France
| | - Lenka Štefančíková
- Université Paris Saclay, CNRS UMR 8214, Institut des Sciences Moléculaires d’Orsay, 91405 Orsay, France
| | - Marta Bolsa-Ferruz
- Université Paris Saclay, CNRS UMR 8214, Institut des Sciences Moléculaires d’Orsay, 91405 Orsay, France
| | - Farah Savina
- Université Paris Saclay, CNRS UMR 8214, Institut des Sciences Moléculaires d’Orsay, 91405 Orsay, France
| | - Diana Dragoe
- Université Paris Saclay, CNRS UMR 8182, Institut de Chimie Moléculaire et des Matériaux d’Orsay, 91405 Orsay, France
| | - Jean-Luc Guerquin-Kern
- Paris-Saclay University, Multimodal Imaging Center (UMS 2016/US 43) CNRS, INSERM, Institut Curie, 91405 Orsay, France
| | - Ting-Di Wu
- Paris-Saclay University, Multimodal Imaging Center (UMS 2016/US 43) CNRS, INSERM, Institut Curie, 91405 Orsay, France
| | - Ryoichi Hirayama
- Department of Charged Particle Therapy Research, National Institute of Radiological Sciences, National Institutes for Quantum and Radiological Science and Technology, 263-8555 Chiba, Japan
| | - Hynd Remita
- Université Paris Saclay, CNRS UMR 8000, Institut de Chimie Physique, 91405 Orsay, France
| | - Sandrine Lacombe
- Université Paris Saclay, CNRS UMR 8214, Institut des Sciences Moléculaires d’Orsay, 91405 Orsay, France
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11
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Ivošev V, Sánchez GJ, Stefancikova L, Haidar DA, González Vargas CR, Yang X, Bazzi R, Porcel E, Roux S, Lacombe S. Uptake and excretion dynamics of gold nanoparticles in cancer cells and fibroblasts. Nanotechnology 2020; 31:135102. [PMID: 31783387 DOI: 10.1088/1361-6528/ab5d82] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Radiotherapy is one of the main treatments used to fight cancer. A major limitation of this modality is the lack of selectivity between cancerous and healthy tissues. One of the most promising strategies proposed in this last decade is the addition of nanoparticles with high-atomic number to enhance radiation effects in tumors. Gold nanoparticles (AuNPs) are considered as one of the best candidates because of their high radioenhancing property, simple synthesis and low toxicity. Ultra small AuNPs (core size of 2.4 nm and hydrodynamic diameter of 4.5 nm) covered with dithiolated diethylenetriaminepentaacetic acid (Au@DTDTPA) are of high interest because of their properties to bind MRI active or PET active compounds at their surface, to concentrate in some tumors and be eliminated via renal clearance thanks to their small size. These key figures make Au@DTDTPA the best candidate to develop image-guided radiotherapy. Surprisingly the capacity of the nanoparticles to penetrate cells, an important issue to predict radioenhancement, has not been established yet. Here, we report the uptake dynamics, internalization routes and excretion dynamics of Au@DTDTPA nanoparticles in various cancer cell lines including glioblastoma (U87-MG), chordoma (UM-Chor1), cervix (HeLa), prostate (PC3), and pancreatic (BxPC-3) cell lines as well as fibroblasts (Dermal fibroblasts). This study demonstrates a strong cell line dependence of the nanoparticle uptake and excretion dynamics. Different pathways of cell internalization evidenced here explain this dependence. As a major finding, the retention of Au@DTDTPA nanoparticles was found to be higher in cancer cells than in fibroblasts. This result strengthens the strategy of using nanoagents to improve tumor selectivity of radiation treatments. In particular Au@DTDTPA nanoparticles are good candidates to improve the treatment of radioresitant gliobastoma, pancreatic and prostate cancer in particular. In conclusion, the variability of cell-to-nanoparticle interaction is a new parameter to consider in the choice of nanoagents in a combined treatment.
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Affiliation(s)
- Vladimir Ivošev
- ISMO (UMR 8214), University Paris-Saclay, University Paris Sud, CNRS, F-91405 Orsay Cedex, France
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12
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Li X, Porcel E, Menendez‐Miranda M, Qiu J, Yang X, Serre C, Pastor A, Desmaële D, Lacombe S, Gref R. Front Cover: Highly Porous Hybrid Metal–Organic Nanoparticles Loaded with Gemcitabine Monophosphate: a Multimodal Approach to Improve Chemo‐ and Radiotherapy (ChemMedChem 3/2020). ChemMedChem 2020. [DOI: 10.1002/cmdc.202000030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Xue Li
- Institut de Sciences Moléculaires d'Orsay UMR CNRS 8214 Université Paris-Sud Université Paris-Saclay Rue André Rivière 91405 Orsay Cedex France
| | - Erika Porcel
- Institut de Sciences Moléculaires d'Orsay UMR CNRS 8214 Université Paris-Sud Université Paris-Saclay Rue André Rivière 91405 Orsay Cedex France
| | - Mario Menendez‐Miranda
- Institut de Sciences Moléculaires d'Orsay UMR CNRS 8214 Université Paris-Sud Université Paris-Saclay Rue André Rivière 91405 Orsay Cedex France
| | - Jingwen Qiu
- Institut de Sciences Moléculaires d'Orsay UMR CNRS 8214 Université Paris-Sud Université Paris-Saclay Rue André Rivière 91405 Orsay Cedex France
| | - Xiaomin Yang
- Institut de Sciences Moléculaires d'Orsay UMR CNRS 8214 Université Paris-Sud Université Paris-Saclay Rue André Rivière 91405 Orsay Cedex France
| | - Christian Serre
- Institut des Matériaux Poreux de Paris, FRE 2000 Ecole Normale Supérieure de Paris Ecole Supérieure de Physique et de Chimie Industrielles de Paris, PSL Research University 24 rue Lhomond 75005 Paris France
| | - Alexandra Pastor
- Institut Galien UMR CNRS 8612, Université Paris-Sud, Université Paris-Saclay 5 Rue Jean-Baptiste Clément 92290 Châtenay-Malabry France
| | - Didier Desmaële
- Institut Galien UMR CNRS 8612, Université Paris-Sud, Université Paris-Saclay 5 Rue Jean-Baptiste Clément 92290 Châtenay-Malabry France
| | - Sandrine Lacombe
- Institut de Sciences Moléculaires d'Orsay UMR CNRS 8214 Université Paris-Sud Université Paris-Saclay Rue André Rivière 91405 Orsay Cedex France
| | - Ruxandra Gref
- Institut de Sciences Moléculaires d'Orsay UMR CNRS 8214 Université Paris-Sud Université Paris-Saclay Rue André Rivière 91405 Orsay Cedex France
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13
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Li X, Porcel E, Menendez‐Miranda M, Qiu J, Yang X, Serre C, Pastor A, Desmaële D, Lacombe S, Gref R. Highly Porous Hybrid Metal–Organic Nanoparticles Loaded with Gemcitabine Monophosphate: a Multimodal Approach to Improve Chemo‐ and Radiotherapy. ChemMedChem 2019; 15:274-283. [DOI: 10.1002/cmdc.201900596] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2019] [Revised: 11/18/2019] [Indexed: 12/16/2022]
Affiliation(s)
- Xue Li
- Institut de Sciences Moléculaires d'Orsay UMR CNRS 8214 Université Paris-Sud Université Paris-Saclay Rue André Rivière 91405 Orsay Cedex France
| | - Erika Porcel
- Institut de Sciences Moléculaires d'Orsay UMR CNRS 8214 Université Paris-Sud Université Paris-Saclay Rue André Rivière 91405 Orsay Cedex France
| | - Mario Menendez‐Miranda
- Institut de Sciences Moléculaires d'Orsay UMR CNRS 8214 Université Paris-Sud Université Paris-Saclay Rue André Rivière 91405 Orsay Cedex France
| | - Jingwen Qiu
- Institut de Sciences Moléculaires d'Orsay UMR CNRS 8214 Université Paris-Sud Université Paris-Saclay Rue André Rivière 91405 Orsay Cedex France
| | - Xiaomin Yang
- Institut de Sciences Moléculaires d'Orsay UMR CNRS 8214 Université Paris-Sud Université Paris-Saclay Rue André Rivière 91405 Orsay Cedex France
| | - Christian Serre
- Institut des Matériaux Poreux de Paris, FRE 2000 Ecole Normale Supérieure de Paris Ecole Supérieure de Physique et de Chimie Industrielles de Paris, PSL Research University 24 rue Lhomond 75005 Paris France
| | - Alexandra Pastor
- Institut Galien UMR CNRS 8612, Université Paris-Sud, Université Paris-Saclay 5 Rue Jean-Baptiste Clément 92290 Châtenay-Malabry France
| | - Didier Desmaële
- Institut Galien UMR CNRS 8612, Université Paris-Sud, Université Paris-Saclay 5 Rue Jean-Baptiste Clément 92290 Châtenay-Malabry France
| | - Sandrine Lacombe
- Institut de Sciences Moléculaires d'Orsay UMR CNRS 8214 Université Paris-Sud Université Paris-Saclay Rue André Rivière 91405 Orsay Cedex France
| | - Ruxandra Gref
- Institut de Sciences Moléculaires d'Orsay UMR CNRS 8214 Université Paris-Sud Université Paris-Saclay Rue André Rivière 91405 Orsay Cedex France
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14
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Salado-Leza D, Traore A, Porcel E, Dragoe D, Muñoz A, Remita H, García G, Lacombe S. Radio-Enhancing Properties of Bimetallic Au:Pt Nanoparticles: Experimental and Theoretical Evidence. Int J Mol Sci 2019; 20:ijms20225648. [PMID: 31718091 PMCID: PMC6888691 DOI: 10.3390/ijms20225648] [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] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2019] [Revised: 10/28/2019] [Accepted: 11/06/2019] [Indexed: 12/17/2022] Open
Abstract
The use of nanoparticles, in combination with ionizing radiation, is considered a promising method to improve the performance of radiation therapies. In this work, we engineered mono- and bimetallic core-shell gold–platinum nanoparticles (NPs) grafted with poly (ethylene glycol) (PEG). Their radio-enhancing properties were investigated using plasmids as bio-nanomolecular probes and gamma radiation. We found that the presence of bimetallic Au:Pt-PEG NPs increased by 90% the induction of double-strand breaks, the signature of nanosize biodamage, and the most difficult cell lesion to repair. The radio-enhancement of Au:Pt-PEG NPs were found three times higher than that of Au-PEG NPs. This effect was scavenged by 80% in the presence of dimethyl sulfoxide, demonstrating the major role of hydroxyl radicals in the damage induction. Geant4-DNA Monte Carlo simulations were used to elucidate the physical processes involved in the radio-enhancement. We predicted enhancement factors of 40% and 45% for the induction of nanosize damage, respectively, for mono- and bimetallic nanoparticles, which is attributed to secondary electron impact processes. This work contributed to a better understanding of the interplay between energy deposition and the induction of nanosize biomolecular damage, being Monte Carlo simulations a simple method to guide the synthesis of new radio-enhancing agents.
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Affiliation(s)
- Daniela Salado-Leza
- Institut des Sciences Moléculaires d’Orsay (UMR 8214) CNRS, Université Paris-Saclay, Université Paris Sud, 91405 Orsay, France; (D.S.-L.); (E.P.)
- Cátedras CONACyT, Universidad Autónoma de San Luis Potosí, Facultad de Ciencias Químicas, Av. Dr. Manuel Nava 6, Zona Universitaria, San Luis Potosí 78210, S.L.P., Mexico
| | - Ali Traore
- Instituto de Física Fundamental, Consejo Superior de Investigaciones Científicas (CSIC), Serrano 113-bis, 28006 Madrid, Spain; (A.T.); (G.G.)
| | - Erika Porcel
- Institut des Sciences Moléculaires d’Orsay (UMR 8214) CNRS, Université Paris-Saclay, Université Paris Sud, 91405 Orsay, France; (D.S.-L.); (E.P.)
| | - Diana Dragoe
- Institut de Chimie Moléculaire et des Matériaux d’Orsay (UMR 8182) CNRS, Université Paris Saclay, Université Paris Sud, 91405 Orsay, France;
| | - Antonio Muñoz
- Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas (CIEMAT), Avda. Complutense 22, 28040 Madrid, Spain;
| | - Hynd Remita
- Laboratoire de Chimie Physique (UMR 8000) CNRS, Université Paris Saclay, Université Paris Sud, 91405 Orsay, France;
| | - Gustavo García
- Instituto de Física Fundamental, Consejo Superior de Investigaciones Científicas (CSIC), Serrano 113-bis, 28006 Madrid, Spain; (A.T.); (G.G.)
| | - Sandrine Lacombe
- Institut des Sciences Moléculaires d’Orsay (UMR 8214) CNRS, Université Paris-Saclay, Université Paris Sud, 91405 Orsay, France; (D.S.-L.); (E.P.)
- Correspondence: ; Tel.: +33-(1)-6915-8263
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15
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Chamard C, Lacombe S, Navarre S, Rohart C, Daures JP, Allieu S. Is current age related macular degeneration self-monitoring a good tool for detecting exudative recurrence? J Fr Ophtalmol 2019; 42:1049-1055. [PMID: 31727329 DOI: 10.1016/j.jfo.2019.02.017] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2018] [Accepted: 02/19/2019] [Indexed: 10/25/2022]
Abstract
PURPOSE To assess the ability of patients with exudative AMD to detect exudative recurrence. Another objective was to assess if self-monitoring, as currently taught, improves this ability. MATERIALS AND METHODS An observational cross-sectional study was carried out in the ophthalmology center of BeauSoleil clinic in Montpellier between March 1 and April 1 2016. Inclusion criteria were presence of neovascular age related macular degeneration treated with the loading dose of three monthly intravitreal anti-VEGF injections, with at least one injection in the past 12 months and at least one exudative recurrence. All patients underwent a visual acuity measurement with ETDRS charts at 4 meters. A questionnaire assessed familiarity with the Amsler grid and its proper use, performance of and type of self-monitoring at home and the subjective feeling of an exudative recurrence at the visit with a 5-level Likert scale. RESULTS A total of 94 eyes of 70 patients were included in this study with 69.0 % women and a median (interquartile range) age of 83 (77-96) years. Among them, 81 % performed regular self-monitoring, mostly with environmental Amsler tests (70 %). Only 63 % of the patients knew of the Amsler grid, among which 52 % used it correctly. Sensitivity (95 % confidence interval, 95 % CI) and specificity (95 % CI) of the subjective sensation of exudative recurrence were 0.32 (0.14-0.55) and 0.85 (0.74-0.92), respectively, for the entire population. Sensitivity (95 % CI) and specificity (95 % CI) were 0.33 (0.13-0.59) and 0.85 (0.74-0.93); 0.25 (0.0063-0.81) and 0.82 (0.48-0.98), respectively, in patients performing and not performing self-monitoring. CONCLUSION Patients' prediction in wet AMD is insufficient in detecting exudative recurrences, even if regular self-monitoring with Amsler grid or environmental Amsler is performed.
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Affiliation(s)
- C Chamard
- Service d'ophtalmologie CHRU Montpellier, hôpital Gui de-Chauliac, 80, avenue Augustin-Fliche, 34090 Montpellier, France.
| | - S Lacombe
- Centre d'ophtalmologie, clinique BeauSoleil Montpellier, 119, avenue de Lodève, 34070 Montpellier, France
| | - S Navarre
- Centre d'ophtalmologie, clinique BeauSoleil Montpellier, 119, avenue de Lodève, 34070 Montpellier, France
| | - C Rohart
- Centre d'ophtalmologie, clinique BeauSoleil Montpellier, 119, avenue de Lodève, 34070 Montpellier, France
| | - J-P Daures
- Centre d'ophtalmologie, clinique BeauSoleil Montpellier, 119, avenue de Lodève, 34070 Montpellier, France
| | - S Allieu
- Centre d'ophtalmologie, clinique BeauSoleil Montpellier, 119, avenue de Lodève, 34070 Montpellier, France
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16
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Pagáčová E, Štefančíková L, Schmidt-Kaler F, Hildenbrand G, Vičar T, Depeš D, Lee JH, Bestvater F, Lacombe S, Porcel E, Roux S, Wenz F, Kopečná O, Falková I, Hausmann M, Falk M. Challenges and Contradictions of Metal Nano-Particle Applications for Radio-Sensitivity Enhancement in Cancer Therapy. Int J Mol Sci 2019; 20:ijms20030588. [PMID: 30704035 PMCID: PMC6387067 DOI: 10.3390/ijms20030588] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2019] [Accepted: 01/24/2019] [Indexed: 12/12/2022] Open
Abstract
From the very beginnings of radiotherapy, a crucial question persists with how to target the radiation effectiveness into the tumor while preserving surrounding tissues as undamaged as possible. One promising approach is to selectively pre-sensitize tumor cells by metallic nanoparticles. However, though the "physics" behind nanoparticle-mediated radio-interaction has been well elaborated, practical applications in medicine remain challenging and often disappointing because of limited knowledge on biological mechanisms leading to cell damage enhancement and eventually cell death. In the present study, we analyzed the influence of different nanoparticle materials (platinum (Pt), and gold (Au)), cancer cell types (HeLa, U87, and SKBr3), and doses (up to 4 Gy) of low-Linear Energy Transfer (LET) ionizing radiation (γ- and X-rays) on the extent, complexity and reparability of radiation-induced γH2AX + 53BP1 foci, the markers of double stand breaks (DSBs). Firstly, we sensitively compared the focus presence in nuclei during a long period of time post-irradiation (24 h) in spatially (three-dimensionally, 3D) fixed cells incubated and non-incubated with Pt nanoparticles by means of high-resolution immunofluorescence confocal microscopy. The data were compared with our preliminary results obtained for Au nanoparticles and recently published results for gadolinium (Gd) nanoparticles of approximately the same size (2⁻3 nm). Next, we introduced a novel super-resolution approach-single molecule localization microscopy (SMLM)-to study the internal structure of the repair foci. In these experiments, 10 nm Au nanoparticles were used that could be also visualized by SMLM. Altogether, the data show that different nanoparticles may or may not enhance radiation damage to DNA, so multi-parameter effects have to be considered to better interpret the radiosensitization. Based on these findings, we discussed on conclusions and contradictions related to the effectiveness and presumptive mechanisms of the cell radiosensitization by nanoparticles. We also demonstrate that SMLM offers new perspectives to study internal structures of repair foci with the goal to better evaluate potential differences in DNA damage patterns.
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Affiliation(s)
- Eva Pagáčová
- Czech Academy of Sciences, Institute of Biophysics, v.v.i., Kralovopolska 135, 612 65 Brno, Czech Republic.
| | - Lenka Štefančíková
- Czech Academy of Sciences, Institute of Biophysics, v.v.i., Kralovopolska 135, 612 65 Brno, Czech Republic.
- Institute des Sciences Moléculaires d'Orsay (ISMO), Université Paris Saclay, Université Paris Sud, CNRS, 91405 Orsay Cedex, France.
| | - Franz Schmidt-Kaler
- Kirchhoff-Institute for Physics, University of Heidelberg, Im Neuenheimer Feld 227, 69120 Heidelberg, Germany.
| | - Georg Hildenbrand
- Kirchhoff-Institute for Physics, University of Heidelberg, Im Neuenheimer Feld 227, 69120 Heidelberg, Germany.
- Department of Radiation Oncology, Universitätsmedizin Mannheim, Medical Faculty Mannheim, Heidelberg University, 68159 Mannheim, Germany.
| | - Tomáš Vičar
- Brno University of Technology, Department of Biomedical Engineering, Technická 3082/12, 61600 Brno, Czech Republic.
| | - Daniel Depeš
- Czech Academy of Sciences, Institute of Biophysics, v.v.i., Kralovopolska 135, 612 65 Brno, Czech Republic.
| | - Jin-Ho Lee
- Kirchhoff-Institute for Physics, University of Heidelberg, Im Neuenheimer Feld 227, 69120 Heidelberg, Germany.
| | - Felix Bestvater
- German Cancer Research Center (DKFZ), Im Neuenheimer Feld 280, 69120 Heidelberg, Germany.
| | - Sandrine Lacombe
- Institute des Sciences Moléculaires d'Orsay (ISMO), Université Paris Saclay, Université Paris Sud, CNRS, 91405 Orsay Cedex, France.
| | - Erika Porcel
- Institute des Sciences Moléculaires d'Orsay (ISMO), Université Paris Saclay, Université Paris Sud, CNRS, 91405 Orsay Cedex, France.
| | - Stéphane Roux
- Institute UTINAM, UMR CNRS 6213-Université de Bourgogne Franche-Comté, 25020 Besançon Cedex, France.
| | - Frederik Wenz
- Department of Radiation Oncology, Universitätsmedizin Mannheim, Medical Faculty Mannheim, Heidelberg University, 68159 Mannheim, Germany.
| | - Olga Kopečná
- Czech Academy of Sciences, Institute of Biophysics, v.v.i., Kralovopolska 135, 612 65 Brno, Czech Republic.
| | - Iva Falková
- Czech Academy of Sciences, Institute of Biophysics, v.v.i., Kralovopolska 135, 612 65 Brno, Czech Republic.
| | - Michael Hausmann
- Kirchhoff-Institute for Physics, University of Heidelberg, Im Neuenheimer Feld 227, 69120 Heidelberg, Germany.
| | - Martin Falk
- Czech Academy of Sciences, Institute of Biophysics, v.v.i., Kralovopolska 135, 612 65 Brno, Czech Republic.
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Schuemann J, McNamara AL, Warmenhoven JW, Henthorn NT, Kirkby KJ, Merchant MJ, Ingram S, Paganetti H, Held KD, Ramos-Mendez J, Faddegon B, Perl J, Goodhead DT, Plante I, Rabus H, Nettelbeck H, Friedland W, Kundrát P, Ottolenghi A, Baiocco G, Barbieri S, Dingfelder M, Incerti S, Villagrasa C, Bueno M, Bernal MA, Guatelli S, Sakata D, Brown JMC, Francis Z, Kyriakou I, Lampe N, Ballarini F, Carante MP, Davídková M, Štěpán V, Jia X, Cucinotta FA, Schulte R, Stewart RD, Carlson DJ, Galer S, Kuncic Z, Lacombe S, Milligan J, Cho SH, Sawakuchi G, Inaniwa T, Sato T, Li W, Solov'yov AV, Surdutovich E, Durante M, Prise KM, McMahon SJ. A New Standard DNA Damage (SDD) Data Format. Radiat Res 2018; 191:76-92. [PMID: 30407901 DOI: 10.1667/rr15209.1] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Our understanding of radiation-induced cellular damage has greatly improved over the past few decades. Despite this progress, there are still many obstacles to fully understand how radiation interacts with biologically relevant cellular components, such as DNA, to cause observable end points such as cell killing. Damage in DNA is identified as a major route of cell killing. One hurdle when modeling biological effects is the difficulty in directly comparing results generated by members of different research groups. Multiple Monte Carlo codes have been developed to simulate damage induction at the DNA scale, while at the same time various groups have developed models that describe DNA repair processes with varying levels of detail. These repair models are intrinsically linked to the damage model employed in their development, making it difficult to disentangle systematic effects in either part of the modeling chain. These modeling chains typically consist of track-structure Monte Carlo simulations of the physical interactions creating direct damages to DNA, followed by simulations of the production and initial reactions of chemical species causing so-called "indirect" damages. After the induction of DNA damage, DNA repair models combine the simulated damage patterns with biological models to determine the biological consequences of the damage. To date, the effect of the environment, such as molecular oxygen (normoxic vs. hypoxic), has been poorly considered. We propose a new standard DNA damage (SDD) data format to unify the interface between the simulation of damage induction in DNA and the biological modeling of DNA repair processes, and introduce the effect of the environment (molecular oxygen or other compounds) as a flexible parameter. Such a standard greatly facilitates inter-model comparisons, providing an ideal environment to tease out model assumptions and identify persistent, underlying mechanisms. Through inter-model comparisons, this unified standard has the potential to greatly advance our understanding of the underlying mechanisms of radiation-induced DNA damage and the resulting observable biological effects when radiation parameters and/or environmental conditions change.
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Affiliation(s)
- J Schuemann
- a Department of Radiation Oncology, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
| | - A L McNamara
- a Department of Radiation Oncology, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
| | - J W Warmenhoven
- b Division of Cancer Sciences, The University of Manchester, Manchester, United Kingdom
| | - N T Henthorn
- b Division of Cancer Sciences, The University of Manchester, Manchester, United Kingdom
| | - K J Kirkby
- b Division of Cancer Sciences, The University of Manchester, Manchester, United Kingdom
| | - M J Merchant
- b Division of Cancer Sciences, The University of Manchester, Manchester, United Kingdom
| | - S Ingram
- b Division of Cancer Sciences, The University of Manchester, Manchester, United Kingdom
| | - H Paganetti
- a Department of Radiation Oncology, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
| | - K D Held
- a Department of Radiation Oncology, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
| | - J Ramos-Mendez
- c Department of Radiation Oncology, University of California San Francisco, San Francisco, California
| | - B Faddegon
- c Department of Radiation Oncology, University of California San Francisco, San Francisco, California
| | - J Perl
- d SLAC National Accelerator Laboratory, Menlo Park, California
| | - D T Goodhead
- e Medical Research Council, Harwell, United Kingdom
| | | | - H Rabus
- g Physikalisch-Technische Bundesanstalt (PTB), Braunschweig, Germany.,h Task Group 6.2 "Computational Micro- and Nanodosimetry", European Radiation Dosimetry Group e.V., Neuherberg, Germany
| | - H Nettelbeck
- g Physikalisch-Technische Bundesanstalt (PTB), Braunschweig, Germany.,h Task Group 6.2 "Computational Micro- and Nanodosimetry", European Radiation Dosimetry Group e.V., Neuherberg, Germany
| | - W Friedland
- h Task Group 6.2 "Computational Micro- and Nanodosimetry", European Radiation Dosimetry Group e.V., Neuherberg, Germany.,i Institute of Radiation Protection, Helmholtz Zentrum München - German Research Center for Environmental Health, Neuherberg, Germany
| | - P Kundrát
- i Institute of Radiation Protection, Helmholtz Zentrum München - German Research Center for Environmental Health, Neuherberg, Germany
| | - A Ottolenghi
- j Physics Department, University of Pavia, Pavia, Italy
| | - G Baiocco
- h Task Group 6.2 "Computational Micro- and Nanodosimetry", European Radiation Dosimetry Group e.V., Neuherberg, Germany.,j Physics Department, University of Pavia, Pavia, Italy
| | - S Barbieri
- h Task Group 6.2 "Computational Micro- and Nanodosimetry", European Radiation Dosimetry Group e.V., Neuherberg, Germany.,j Physics Department, University of Pavia, Pavia, Italy
| | - M Dingfelder
- k Department of Physics, East Carolina University, Greenville, North Carolina
| | - S Incerti
- l CNRS, IN2P3, CENBG, UMR 5797, F-33170 Gradignan, France.,m University of Bordeaux, CENBG, UMR 5797, F-33170 Gradignan, France
| | - C Villagrasa
- h Task Group 6.2 "Computational Micro- and Nanodosimetry", European Radiation Dosimetry Group e.V., Neuherberg, Germany.,n Institut de Radioprotection et Sûreté Nucléaire, F-92262 Fontenay aux Roses Cedex, France
| | - M Bueno
- n Institut de Radioprotection et Sûreté Nucléaire, F-92262 Fontenay aux Roses Cedex, France
| | - M A Bernal
- o Applied Physics Department, Gleb Wataghin Institute of Physics, State University of Campinas, Campinas, SP, Brazil
| | - S Guatelli
- p Centre for Medical Radiation Physics, University of Wollongong, Wollongong, NSW, Australia
| | - D Sakata
- p Centre for Medical Radiation Physics, University of Wollongong, Wollongong, NSW, Australia
| | - J M C Brown
- q Department of Radiation Science and Technology, Delft University of Technology, Delft, The Netherlands
| | - Z Francis
- r Department of Physics, Faculty of Science, Saint Joseph University, Beirut, Lebanon
| | - I Kyriakou
- s Medical Physics Laboratory, University of Ioannina Medical School, Ioannina, Greece
| | - N Lampe
- l CNRS, IN2P3, CENBG, UMR 5797, F-33170 Gradignan, France
| | - F Ballarini
- j Physics Department, University of Pavia, Pavia, Italy.,t Italian National Institute of Nuclear Physics, Section of Pavia, I-27100 Pavia, Italy
| | - M P Carante
- j Physics Department, University of Pavia, Pavia, Italy.,t Italian National Institute of Nuclear Physics, Section of Pavia, I-27100 Pavia, Italy
| | - M Davídková
- u Department of Radiation Dosimetry, Nuclear Physics Institute of the CAS, Řež, Czech Republic
| | - V Štěpán
- u Department of Radiation Dosimetry, Nuclear Physics Institute of the CAS, Řež, Czech Republic
| | - X Jia
- v Department of Radiation Oncology, University of Texas Southwestern Medical Center, Dallas, Texas
| | - F A Cucinotta
- w Health Physics and Diagnostic Sciences, University of Nevada Las Vegas, Las Vegas, Nevada
| | - R Schulte
- x Division of Biomedical Engineering Sciences, School of Medicine, Loma Linda University, Loma Linda, California
| | - R D Stewart
- y Department of Radiation Oncology, University of Washington, Seattle, Washington
| | - D J Carlson
- z Department of Therapeutic Radiology, Yale University School of Medicine, New Haven, Connecticut
| | - S Galer
- aa Medical Radiation Science Group, National Physical Laboratory, Teddington, United Kingdom
| | - Z Kuncic
- bb School of Physics, University of Sydney, Sydney, NSW, Australia
| | - S Lacombe
- cc Institut des Sciences Moléculaires d'Orsay (UMR 8214) University Paris-Sud, CNRS, University Paris-Saclay, 91405 Orsay Cedex, France
| | | | - S H Cho
- ee Department of Radiation Physics and Imaging Physics, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - G Sawakuchi
- ee Department of Radiation Physics and Imaging Physics, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - T Inaniwa
- ff Department of Accelerator and Medical Physics, National Institute of Radiological Sciences, Chiba, Japan
| | - T Sato
- gg Japan Atomic Energy Agency, Nuclear Science and Engineering Center, Tokai 319-1196, Japan
| | - W Li
- i Institute of Radiation Protection, Helmholtz Zentrum München - German Research Center for Environmental Health, Neuherberg, Germany.,hh Task Group 7.7 "Internal Micro- and Nanodosimetry", European Radiation Dosimetry Group e.V., Neuherberg, Germany
| | - A V Solov'yov
- ii MBN Research Center, 60438 Frankfurt am Main, Germany
| | - E Surdutovich
- jj Department of Physics, Oakland University, Rochester, Michigan
| | - M Durante
- kk GSI Helmholtzzentrum für Schwerionenforschung, Biophysics Department, Darmstadt, Germany
| | - K M Prise
- ll Centre for Cancer Research and Cell Biology, Queens University Belfast, Belfast, United Kingdom
| | - S J McMahon
- ll Centre for Cancer Research and Cell Biology, Queens University Belfast, Belfast, United Kingdom
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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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Abstract
Enhancement of radiation effects by high-atomic number nanoparticles (NPs) has been increasingly studied for its potential to improve radiotherapeutic efficacy. The underlying principle of NP radio-enhancement is the potential to release copious electrons into a nanoscale volume, thereby amplifying radiation-induced biological damage. While the vast majority of studies to date have focused on gold nanoparticles with photon radiation, an increasing number of experimental, theoretical and simulation studies have explored opportunities offered by other NPs (e.g. gadolinium, platinum, iron oxide, hafnium) and other therapeutic radiation sources such as ion beams. It is thus of interest to the research community to consolidate findings from the different studies and summarise progress to date, as well as to identify strategies that offer promising opportunities for clinical translation. This is the purpose of this Topical Review.
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Affiliation(s)
- Zdenka Kuncic
- School of Physics and Sydney Nano Institute, University of Sydney, Sydney, NSW 2006, Australia
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Abstract
Cancer radiation therapy with charged particle beams, called particle therapy, is a new therapeutic treatment presenting major advantages when compared to conventional radiotherapy. Because ions have specific ballistic properties and a higher biological effectiveness, they are superior to x-rays. Numerous medical centres are starting in the world using mostly protons but also carbon ions as medical beams. Several investigations are attempting to reduce the cost/benefit ratio and enlarge the range of therapeutic indications. A major limitation of particle therapy is the presence of low but significant damage induced in healthy tissues located at the entrance of the ion track prior to reaching the tumour. It is thus a major challenge to improve the targeting of the tumours, concentrating radiation effects in the malignance. A novel strategy, based on the addition of nanoparticles targeting the tumour, was suggested over a decade ago to improve the performance of conventional photon therapy. Recently, similar developments have emerged for particle therapy and the amount of research is now exploding. In this paper, we review the experimental results, as well as theoretical and simulation studies that shed light in the promising outcomes of this strategy and in the underpinning mechanisms. Several experiments provide consistent evidence of significant enhancement of ion radiation effects in the presence of nanoparticles. In view of implementing this strategy for cancer treatment, simulation studies have begun to establish the rationale and the specificity of this effect. In addition, these studies will help to outline a list of possible mechanisms and to predict the impact of ion beams and nanoparticle characteristics. Many questions remain unsolved, but the findings of these first studies are encouraging and open new challenges. After summarizing the main results in the field, we propose a roadmap to pursue future research with the aim to strengthen the potential interplay between particle therapy and nanomedicine.
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Affiliation(s)
- Sandrine Lacombe
- Institut des Sciences Moléculaires d'Orsay (UMR 8214) Bât 351, University Paris Saclay, University of Paris Sud, CNRS, 91405 Orsay Cedex, France
| | - Erika Porcel
- Institut des Sciences Moléculaires d'Orsay (UMR 8214) Bât 351, University Paris Saclay, University of Paris Sud, CNRS, 91405 Orsay Cedex, France
| | - Emanuele Scifoni
- Biophysics Department, GSI Helmholtzzentrum für Schwerionenforschung, 64291 Darmstadt, Germany.,TIFPA-INFN, Trento Institute for Fundamental Physics and Applications, University of Trento, 38121 Trento, Italy
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21
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Li S, Porcel E, Remita H, Marco S, Réfrégiers M, Dutertre M, Confalonieri F, Lacombe S. Platinum nanoparticles: an exquisite tool to overcome radioresistance. Cancer Nanotechnol 2017; 8:4. [PMID: 28757899 PMCID: PMC5506239 DOI: 10.1186/s12645-017-0028-y] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2017] [Accepted: 07/03/2017] [Indexed: 12/13/2022] Open
Abstract
Backgroud Small metallic nanoparticles are proposed as potential nanodrugs to optimize the performances of radiotherapy. This strategy, based on the enrichment of tumours with nanoparticles to amplify radiation effects in the tumour, aims at increasing the cytopathic effect in tumours while healthy tissue is preserved, an important challenge in radiotherapy. Another major cause of radiotherapy failure is the radioresistance of certain cancers. Surprisingly, the use of nanoparticles to overcome radioresistance has not, to the best of our knowledge, been extensively investigated. The mechanisms of radioresistance have been extensively studied using Deinococcus radiodurans, the most radioresistant organism ever reported, as a model. Methods In this work, we investigated the impact of ultra-small platinum nanoparticles (1.7 nm) on this organism, including uptake, toxicity, and effects on radiation responses. Results We showed that the nanoparticles penetrate D. radiodurans cells, despite the 150 nm cell wall thickness with a minimal inhibition concentration on the order of 4.8 mg L−1. We also found that the nanoparticles amplify gamma ray radiation effects by >40%. Conclusions Finally, this study demonstrates the capacity of metallic nanoparticles to amplify radiation in radioresistant organisms, thus opening the perspective to use nanoparticles not only to improve tumour targeting but also to overcome radioresistance. Electronic supplementary material The online version of this article (doi:10.1186/s12645-017-0028-y) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Sha Li
- CNRS, UMR 8214, Institut des Sciences Moléculaires d'Orsay, Université Paris Sud, 91405 Orsay Cedex, France
| | - Erika Porcel
- CNRS, UMR 8214, Institut des Sciences Moléculaires d'Orsay, Université Paris Sud, 91405 Orsay Cedex, France
| | - Hynd Remita
- CNRS, UMR 8000, Laboratoire de Chimie Physique, Université Paris-Sud, 91405 Orsay Cedex, France
| | - Sergio Marco
- Institut Curie/INSERM U759, Campus Universitaire d'Orsay, 91405 Orsay Cedex, France
| | | | - Murielle Dutertre
- CEA, CNRS, Institute for Integrative Biology of the Cell (I2BC), Univ. Paris-Sud, Université Paris Saclay, 91405 Orsay, France
| | - Fabrice Confalonieri
- CEA, CNRS, Institute for Integrative Biology of the Cell (I2BC), Univ. Paris-Sud, Université Paris Saclay, 91405 Orsay, France
| | - Sandrine Lacombe
- CNRS, UMR 8214, Institut des Sciences Moléculaires d'Orsay, Université Paris Sud, 91405 Orsay Cedex, France
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Costarramone N, Cantau C, Desauziers V, Pécheyran C, Pigot T, Lacombe S. Photocatalytic air purifiers for indoor air: European standard and pilot room experiments. Environ Sci Pollut Res Int 2017; 24:12538-12546. [PMID: 27628923 DOI: 10.1007/s11356-016-7607-z] [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] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/08/2016] [Accepted: 09/05/2016] [Indexed: 06/06/2023]
Abstract
At the European level (CEN/TC386), some efforts are currently devoted to new standards for comparing the efficiency of commercial photocatalytic material/devices in various application fields. Concerning prototype or commercial indoor photocatalytic air purifiers designed for volatile organic compounds (VOC) abatement, the methodology is based on a laboratory airtight chamber. The photocatalytic function is demonstrated by the mineralization of a mixture of five VOCs. Experimental data were obtained for four selected commercial devices and three commercial materials: drop of VOC concentration, but also identification of secondary species (with special attention to formaldehyde), mineralization rates, and Clean Air Delivery Rate (CADR). With two efficient air purifiers, these laboratory experiments were compared to the results in two experimental rooms (35-40 m3) where air pollution was introduced through wooden floor and furniture. The systems' ageing was also studied. The safety of the commercial products was also assessed by the determination of nanoparticle release. Standardized tests are useful to rank photocatalytic air purifiers and passive materials and to discard inefficient ones. A good correlation between the standard experiments and the experimental room experiments was found, even if in the latter case, the concentration of lower weight VOCs drops less quickly than that of heavier VOCs.
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Affiliation(s)
- N Costarramone
- UT2A, Hélioparc, 2 Avenue du Président Angot, BP 1153, 64013, Pau cedex, France
- IPREM, UMR CNRS 5254, Université de Pau et Pays de l'Adour Hélioparc, 2 Av. Pdt Angot, BP 1153, 64013, Pau cedex, France
| | - C Cantau
- NOBATEK, 67 rue de Mirambeau, 64600, Anglet, France
| | - V Desauziers
- C2MA Ecole des Mines d'Alès, Hélioparc, 2 Av. Pdt Angot, BP 1153, 64013, Pau cedex, France
| | - C Pécheyran
- IPREM, UMR CNRS 5254, Université de Pau et Pays de l'Adour Hélioparc, 2 Av. Pdt Angot, BP 1153, 64013, Pau cedex, France
| | - T Pigot
- IPREM, UMR CNRS 5254, Université de Pau et Pays de l'Adour Hélioparc, 2 Av. Pdt Angot, BP 1153, 64013, Pau cedex, France
| | - S Lacombe
- IPREM, UMR CNRS 5254, Université de Pau et Pays de l'Adour Hélioparc, 2 Av. Pdt Angot, BP 1153, 64013, Pau cedex, France.
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Štefančíková L, Lacombe S, Salado D, Porcel E, Pagáčová E, Tillement O, Lux F, Depeš D, Kozubek S, Falk M. Effect of gadolinium-based nanoparticles on nuclear DNA damage and repair in glioblastoma tumor cells. J Nanobiotechnology 2016; 14:63. [PMID: 27464501 PMCID: PMC4964094 DOI: 10.1186/s12951-016-0215-8] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2016] [Accepted: 07/18/2016] [Indexed: 12/03/2022] Open
Abstract
Background Tumor targeting of radiotherapy represents a great challenge. The addition of multimodal nanoparticles, such as 3 nm gadolinium-based nanoparticles (GdBNs), has been proposed as a promising strategy to amplify the effects of radiation in tumors and improve diagnostics using the same agents. This singular property named theranostic is a unique advantage of GdBNs. It has been established that the amplification of radiation effects by GdBNs appears due to fast electronic processes. However, the influence of these nanoparticles on cells is not yet understood. In particular, it remains dubious how nanoparticles activated by ionizing radiation interact with cells and their constituents. A crucial question remains open of whether damage to the nucleus is necessary for the radiosensitization exerted by GdBNs (and other nanoparticles). Methods We studied the effect of GdBNs on the induction and repair of DNA double-strand breaks (DSBs) in the nuclear DNA of U87 tumor cells irradiated with γ-rays. For this purpose, we used currently the most sensitive method of DSBs detection based on high-resolution confocal fluorescence microscopy coupled with immunodetection of two independent DSBs markers. Results We show that, in the conditions where GdBNs amplify radiation effects, they remain localized in the cytoplasm, i.e. do not penetrate into the nucleus. In addition, the presence of GdBNs in the cytoplasm neither increases induction of DSBs by γ-rays in the nuclear DNA nor affects their consequent repair. Conclusions Our results suggest that the radiosensitization mediated by GdBNs is a cytoplasmic event that is independent of the nuclear DNA breakage, a phenomenon commonly accepted as the explanation of biological radiation effects. Considering our earlier recognized colocalization of GdBNs with the lysosomes and endosomes, we revolutionary hypothesize here about these organelles as potential targets for (some) nanoparticles. If confirmed, this finding of cytoplasmically determined radiosensitization opens new perspectives of using nano-radioenhancers to improve radiotherapy without escalating the risk of pathologies related to genetic damage.
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Affiliation(s)
- Lenka Štefančíková
- Department of Cell Biology and Radiobiology, Institute of Biophysics of ASCR, Brno, Czech Republic. .,Institute des Sciences Moléculaires d'Orsay (ISMO), Université Paris Sud 11, CNRS, Université Paris Saclay, Bât 351, 91405, Orsay Cedex, France.
| | - Sandrine Lacombe
- Institute des Sciences Moléculaires d'Orsay (ISMO), Université Paris Sud 11, CNRS, Université Paris Saclay, Bât 351, 91405, Orsay Cedex, France
| | - Daniela Salado
- Institute des Sciences Moléculaires d'Orsay (ISMO), Université Paris Sud 11, CNRS, Université Paris Saclay, Bât 351, 91405, Orsay Cedex, France
| | - Erika Porcel
- Institute des Sciences Moléculaires d'Orsay (ISMO), Université Paris Sud 11, CNRS, Université Paris Saclay, Bât 351, 91405, Orsay Cedex, France
| | - Eva Pagáčová
- Department of Cell Biology and Radiobiology, Institute of Biophysics of ASCR, Brno, Czech Republic
| | - Olivier Tillement
- Institut Lumière Matière, Université Claude Bernard Lyon 1, CNRS, 69622, Villeurbanne Cedex, France
| | - François Lux
- Institut Lumière Matière, Université Claude Bernard Lyon 1, CNRS, 69622, Villeurbanne Cedex, France
| | - Daniel Depeš
- Department of Cell Biology and Radiobiology, Institute of Biophysics of ASCR, Brno, Czech Republic
| | - Stanislav Kozubek
- Department of Cell Biology and Radiobiology, Institute of Biophysics of ASCR, Brno, Czech Republic
| | - Martin Falk
- Department of Cell Biology and Radiobiology, Institute of Biophysics of ASCR, Brno, Czech Republic.
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Schlathölter T, Eustache P, Porcel E, Salado D, Stefancikova L, Tillement O, Lux F, Mowat P, Biegun AK, van Goethem MJ, Remita H, Lacombe S. Improving proton therapy by metal-containing nanoparticles: nanoscale insights. Int J Nanomedicine 2016; 11:1549-56. [PMID: 27143877 PMCID: PMC4841428 DOI: 10.2147/ijn.s99410] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
The use of nanoparticles to enhance the effect of radiation-based cancer treatments is a growing field of study and recently, even nanoparticle-induced improvement of proton therapy performance has been investigated. Aiming at a clinical implementation of this approach, it is essential to characterize the mechanisms underlying the synergistic effects of nanoparticles combined with proton irradiation. In this study, we investigated the effect of platinum- and gadolinium-based nanoparticles on the nanoscale damage induced by a proton beam of therapeutically relevant energy (150 MeV) using plasmid DNA molecular probe. Two conditions of irradiation (0.44 and 3.6 keV/μm) were considered to mimic the beam properties at the entrance and at the end of the proton track. We demonstrate that the two metal-containing nanoparticles amplify, in particular, the induction of nanosize damages (>2 nm) which are most lethal for cells. More importantly, this effect is even more pronounced at the end of the proton track. This work gives a new insight into the underlying mechanisms on the nanoscale and indicates that the addition of metal-based nanoparticles is a promising strategy not only to increase the cell killing action of fast protons, but also to improve tumor targeting.
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Affiliation(s)
- Thomas Schlathölter
- Zernike Institute for Advanced Materials, University of Groningen, Groningen, the Netherlands
| | - Pierre Eustache
- Institut des Sciences Moléculaires d'Orsay (ISMO), Univ. Paris Sud, CNRS, Université Paris Saclay, Orsay Cedex, France
| | - Erika Porcel
- Institut des Sciences Moléculaires d'Orsay (ISMO), Univ. Paris Sud, CNRS, Université Paris Saclay, Orsay Cedex, France
| | - Daniela Salado
- Institut des Sciences Moléculaires d'Orsay (ISMO), Univ. Paris Sud, CNRS, Université Paris Saclay, Orsay Cedex, France
| | - Lenka Stefancikova
- Institut des Sciences Moléculaires d'Orsay (ISMO), Univ. Paris Sud, CNRS, Université Paris Saclay, Orsay Cedex, France
| | | | - Francois Lux
- Institut Lumière Matière, Villeurbanne Cedex, France
| | - Pierre Mowat
- Institut Lumière Matière, Villeurbanne Cedex, France
| | - Aleksandra K Biegun
- Kernfysisch Versneller Instituut - Center for Advanced Radiation Technology (KVI-CART), University of Groningen, Groningen, the Netherlands
| | - Marc-Jan van Goethem
- Kernfysisch Versneller Instituut - Center for Advanced Radiation Technology (KVI-CART), University of Groningen, Groningen, the Netherlands
| | - Hynd Remita
- Laboratoire de Chimie Physique, Universite Paris-Sud, Orsay Cedex, France
| | - Sandrine Lacombe
- Institut des Sciences Moléculaires d'Orsay (ISMO), Univ. Paris Sud, CNRS, Université Paris Saclay, Orsay Cedex, France
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Lacombe S, Pigot T. Materials for selective photo-oxygenation vs. photocatalysis: preparation, properties and applications in environmental and health fields. Catal Sci Technol 2016. [DOI: 10.1039/c5cy01929j] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Photosensitizing materials made of organic dyes embedded in various supports are compared to usual supported TiO2-based photocatalysts.
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Affiliation(s)
- S. Lacombe
- IPREM UMR CNRS 5254
- Université de Pau et des Pays de l'Adour
- 64053 Pau Cedex
- France
| | - T. Pigot
- IPREM UMR CNRS 5254
- Université de Pau et des Pays de l'Adour
- 64053 Pau Cedex
- France
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Daien V, Papinaud L, Lacombe S, Daures J, Villain M. Impact of intracamerular Cefuroxime on post-operative endophthalmitis in Languedoc Roussillon, France from 2010 to 2014. Acta Ophthalmol 2015. [DOI: 10.1111/j.1755-3768.2015.0456] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- V. Daien
- Ophthalmology; CHU Montpellier-Hospital Gui Chauliac; Montpellier France
| | - L. Papinaud
- Biostatistics Department; Echelon Régional de l'Assurance Maladie du Languedoc Roussillon; Montpellier France
| | - S. Lacombe
- Laboratory of Biostatistics; University Institute of Clinical Research-University of Montpellier I; Montpellier France
| | - J.P. Daures
- Laboratory of Biostatistics; University Institute of Clinical Research-University of Montpellier I; Montpellier France
| | - M. Villain
- Ophthalmology; CHU Montpellier-Hospital Gui Chauliac; Montpellier France
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27
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Costarramone N, Kartheuser B, Pecheyran C, Pigot T, Lacombe S. Efficiency and harmfulness of air-purifying photocatalytic commercial devices: From standardized chamber tests to nanoparticles release. Catal Today 2015. [DOI: 10.1016/j.cattod.2015.01.008] [Citation(s) in RCA: 13] [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: 10/24/2022]
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28
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Trellu M, Lacombe S, Morin D, Dalla-Vale F. [Epidemiology of diabetes in children in Languedoc-Roussillon (France)]. Arch Pediatr 2015; 22:241-6. [PMID: 25656455 DOI: 10.1016/j.arcped.2014.12.009] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2013] [Revised: 07/25/2014] [Accepted: 12/17/2014] [Indexed: 12/21/2022]
Abstract
Since 1st January 2000, the PEDIAB-LR registry has listed new cases of diabetes in children under 16 years of age in the Languedoc-Roussillon region of France, in order to assess the incidence and epidemiological characteristics of children affected by diabetes. At the end of December 2010, 745 children had been registered. The characteristics of these children included an identical proportion of girls and boys, a mean age of 8 years at diagnosis, and a family history of type 1 diabetes in 8.4% of the cases. Inaugural ketoacidosis was observed in 69.5% of the patients and was severe in 23.7% of these cases. To replace intravenous insulin, a two-injection dosing regimen (in the morning and before dinner) was prescribed in 76.5% of cases, multi-injections of basal-bolus in 16%, and subcutaneous insulin infusion (insulin pump therapy) in 7.5% of cases. Between 2000 and 2010, there was no increase in overall incidence. It is noteworthy that age at diagnosis tended to decrease, but this was not statistically significant. In conclusion, the PEDIAB-LR registry is currently the only French registry on diabetes in children, analyzing many factors related to its incidence, such as age at diagnosis and the existence of ketoacidosis.
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Affiliation(s)
- M Trellu
- Service de diabétologie pédiatrique, hôpital Arnaud-de-Villeneuve, CHRU de Montpellier, 371, avenue du Doyen-Gaston-Giraud, 34295 Montpellier cedex 5, France
| | - S Lacombe
- Institut universitaire de recherche clinique (IURC), 641, avenue du Doyen-Gaston-Giraud, 34093 Montpellier cedex 5, France
| | - D Morin
- Service de diabétologie pédiatrique, hôpital Arnaud-de-Villeneuve, CHRU de Montpellier, 371, avenue du Doyen-Gaston-Giraud, 34295 Montpellier cedex 5, France; Pédiatrie spécialisée, institut marin Saint-Pierre, 371, avenue de l'Évêché de Maguelone, 34250 Palavas-les-Flots, France
| | - F Dalla-Vale
- Service de diabétologie pédiatrique, hôpital Arnaud-de-Villeneuve, CHRU de Montpellier, 371, avenue du Doyen-Gaston-Giraud, 34295 Montpellier cedex 5, France; Pédiatrie spécialisée, institut marin Saint-Pierre, 371, avenue de l'Évêché de Maguelone, 34250 Palavas-les-Flots, France.
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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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Ronzani F, Trivella A, Bordat P, Blanc S, Lacombe S. Revisiting the photophysics and photochemistry of methylene violet (MV). J Photochem Photobiol A Chem 2014. [DOI: 10.1016/j.jphotochem.2014.03.019] [Citation(s) in RCA: 4] [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: 10/25/2022]
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Porcel E, Tillement O, Lux F, Mowat P, Usami N, Kobayashi K, Furusawa Y, Le Sech C, Li S, Lacombe S. Gadolinium-based nanoparticles to improve the hadrontherapy performances. Nanomedicine 2014; 10:1601-8. [PMID: 24846523 DOI: 10.1016/j.nano.2014.05.005] [Citation(s) in RCA: 71] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/29/2013] [Revised: 04/25/2014] [Accepted: 05/12/2014] [Indexed: 01/04/2023]
Abstract
UNLABELLED Nanomedicine is proposed as a novel strategy to improve the performance of radiotherapy. High-Z nanoparticles are known to enhance the effects of ionizing radiation. Recently, multimodal nanoparticles such as gadolinium-based nanoagents were proposed to amplify the effects of x-rays and g-rays and to improve MRI diagnosis. For tumors sited in sensitive tissues, childhood cases and radioresistant cancers, hadrontherapy is considered superior to x-rays and g-rays. Hadrontherapy, based on fast ion radiation, has the advantage of avoiding damage to the tissues behind the tumor; however, the damage caused in front of the tumor is its major limitation. Here, we demonstrate that multimodal gadolinium-based nanoparticles amplify cell death with fast ions used as radiation. Molecular scale experiments give insights into the mechanisms underlying the amplification of radiation effects. This proof-of-concept opens up novel perspectives for multimodal nanomedicine in hadrontherapy, ultimately reducing negative radiation effects in healthy tissues in front of the tumor. FROM THE CLINICAL EDITOR Gadolinium-chelating polysiloxane nanoparticles were previously reported to amplify the anti-tumor effects of x-rays and g-rays and to serve as MRI contrast agents. Fast ion radiation-based hadrontherapy avoids damage to the tissues behind the tumor, with a major limitation of tissue damage in front of the tumor. This study demonstrates a potential role for the above nanoagents in optimizing hadrontherapy with preventive effects in healthy tissue and amplified cell death in the tumor.
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Affiliation(s)
- Erika Porcel
- Institut des Sciences Moléculaires d'Orsay, Université Paris Sud, CNRS, Orsay, France
| | - Olivier Tillement
- Institut Lumière Matière, Université Claude Bernard Lyon 1, CNRS, Villeurbanne, France
| | - François Lux
- Institut Lumière Matière, Université Claude Bernard Lyon 1, CNRS, Villeurbanne, France
| | - Pierre Mowat
- Institut Lumière Matière, Université Claude Bernard Lyon 1, CNRS, Villeurbanne, France
| | - Noriko Usami
- Photon Factory, Institute of Material Science, High Energy Accelerator Research Organization, Oho 1, Tsukuba, Ibaraki, Japan
| | - Katsumi Kobayashi
- Photon Factory, Institute of Material Science, High Energy Accelerator Research Organization, Oho 1, Tsukuba, Ibaraki, Japan
| | - Yoshiya Furusawa
- Research Center for Charged Particle Therapy, National Institute of Radiological Sciences, 4-9-1 Anagawa, Inage-ku, Chiba, Japan
| | - Claude Le Sech
- Institut des Sciences Moléculaires d'Orsay, Université Paris Sud, CNRS, Orsay, France
| | - Sha Li
- Institut des Sciences Moléculaires d'Orsay, Université Paris Sud, CNRS, Orsay, France
| | - Sandrine Lacombe
- Institut des Sciences Moléculaires d'Orsay, Université Paris Sud, CNRS, Orsay, France.
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Lahaye S, Regpala S, Lacombe S, Sharma M, Gibbens S, Ball D, Francis K. Evaluation of patients' attitudes towards stroke prevention and bleeding risk in atrial fibrillation. Thromb Haemost 2013; 111:465-73. [PMID: 24337399 DOI: 10.1160/th13-05-0424] [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] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2013] [Accepted: 11/08/2013] [Indexed: 12/19/2022]
Abstract
Patient's values and preferences regarding the relative importance of preventing strokes and avoiding bleeding are now recognised to be of great importance in deciding on therapy for the prevention of stroke due to atrial fibrillation (SPAF). We used an iPad questionnaire to determine the minimal clinically important difference (Treatment Threshold) and the maximum number of major bleeding events that a patient would be willing to endure in order to prevent one stroke (Bleeding Ratio) for the initiation of antithrombotic therapy in 172 hospital in-patients with documented non-valvular atrial fibrillation in whom anticoagulant therapy was being considered. Patients expressed strong opinions regarding SPAF. We found that 12% of patients were "medication averse" and were not willing to consider antithrombotic therapy; even if it was 100% effective in preventing strokes. Of those patients who were willing to consider antithrombotic therapy, 42% were identified as "risk averse" and 15% were "risk tolerant". Patients required at least a 0.8% (NNT=125) annual absolute risk reduction and 15% relative risk reduction in the risk of stroke in order to agree to initiate antithrombotic therapy, and patients were willing to endure 4.4 major bleeds in order to prevent one stroke. In conclusion, there was a substantial amount of inter-patient variability, and often extreme differences in opinion regarding tolerance of bleeding risk in the context of stroke prevention in atrial fibrillation. These findings highlight the importance of considering patient preferences when deciding on SPAF therapy.
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Affiliation(s)
- S Lahaye
- Stephen LaHaye, MD, Cardiology, Queen's University, Kingston, Ontario, Canada, Tel.: +1 613 544 3400 (x2155), Fax: +1 613 544 4749, E-mail:
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Pers YM, Lacombe S, Fabre S, Daures JP, Rouviere J, Sany J. AB1396 Medical and economic benefit of a health care network dedicated to the care of a patient with rheumatoid arthritis. Ann Rheum Dis 2013. [DOI: 10.1136/annrheumdis-2012-eular.1388] [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: 11/04/2022]
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Rahal R, Le Bechec M, Guyoneaud R, Pigot T, Paolacci H, Lacombe S. Bactericidal activity under UV and visible light of cotton fabrics coated with anthraquinone-sensitized TiO2. Catal Today 2013. [DOI: 10.1016/j.cattod.2012.10.012] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Reinbold C, Lacombe S, Ziegler-Graff V, Scheidecker D, Wiss L, Beuve M, Caranta C, Brault V. Closely related poleroviruses depend on distinct translation initiation factors to infect Arabidopsis thaliana. Mol Plant Microbe Interact 2013; 26:257-265. [PMID: 23013438 DOI: 10.1094/mpmi-07-12-0174-r] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
In addition to being essential for translation of eukaryotic mRNA, translation initiation factors are also key components of plant-virus interactions. In order to address the involvement of these factors in the infectious cycle of poleroviruses (aphid-transmitted, phloem-limited viruses), the accumulation of three poleroviruses was followed in Arabidopsis thaliana mutant lines impaired in the synthesis of translation initiation factors in the eIF4E and eIF4G families. We found that efficient accumulation of Turnip yellows virus (TuYV) in A. thaliana relies on the presence of eIF (iso)4G1, whereas Beet mild yellowing virus (BMYV) and Beet western yellows virus-USA (BWYV-USA) rely, instead, on eIF4E1. A role for these factors in the infectious processes of TuYV and BMYV was confirmed by direct interaction in yeast between these specific factors and the 5' viral genome-linked protein of the related virus. Although the underlying molecular mechanism is still unknown, this study reveals a totally unforeseen situation in which closely related viruses belonging to the same genus use different translation initiation factors for efficient infection of A. thaliana.
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Affiliation(s)
- C Reinbold
- INRA, UMR 1131 SVQV, 28 rue de Herrlisheim, F-68021 Colmar, France
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36
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Kartheuser B, Costarramone N, Pigot T, Lacombe S. NORMACAT project: normalized closed chamber tests for evaluation of photocatalytic VOC treatment in indoor air and formaldehyde determination. Environ Sci Pollut Res Int 2012; 19:3763-3771. [PMID: 23054738 DOI: 10.1007/s11356-012-0797-0] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/07/2011] [Accepted: 01/27/2012] [Indexed: 06/01/2023]
Abstract
BACKGROUND, AIM The aims of the NORMACAT project are: to develop tools and unbiased standardized methods to measure the performance and to validate the safety of new materials and systems integrating photocatalysis, to develop new photocatalytic media with higher efficiency and to give recommendations aimed at improving the tested materials and systems. METHOD To achieve this objective, it was necessary to design standardized test benches and protocols to assess photocatalytic efficiency of materials or systems used in the treatment of volatile organic compounds (VOCs) and odour under conditions close to applications. The tests are based on the validation of robust analytical methods at the parts per billion by volume level that not only follow the disappearance of the initial VOCs but also identify the secondary species and calculate the mineralization rates. RESULTS The first results of inter-laboratory closed chamber tests, according to XP B44-013 AFNOR standard, are described. The photocatalytic degradation of mixtures of several defined pollutants under controlled conditions (temperature, relative humidity, initial concentration) was carried out in two independent laboratories with the same photocatalytic device and with various analytical procedures. Comparison of the degradation rate and of the mineralization efficiency allowed the determination of the clean air delivery rate in both cases. Formaldehyde was the only by-product detected during photocatalytic test under standardized experimental conditions. The concentration of transient formaldehyde varied according to the initial VOC concentration. Moreover the photocatalytic reaction rate of formaldehyde in mixture with other pollutants was analysed. It was concluded that formaldehyde concentration did not increase with time. CONCLUSION-PERSPECTIVE: This type of experiment should allow the comparison of the performances of different photoreactors and of photocatalytic media under controlled and reproducible conditions against mixtures of pollutants including formaldehyde.
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Affiliation(s)
- B Kartheuser
- CERTECH asbl, Rue Jules Bordet, Zone Industrielle C, 7180, Seneffe, Belgium.
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Vilcocq L, Cabiac A, Especel C, Lacombe S, Duprez D. Sorbitol transformation in aqueous medium: Influence of metal/acid balance on reaction selectivity. Catal Today 2012. [DOI: 10.1016/j.cattod.2012.03.051] [Citation(s) in RCA: 17] [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: 11/26/2022]
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Le Sech C, Kobayashi K, Usami N, Furusawa Y, Porcel E, Lacombe S. Comment on 'Therapeutic application of metallic nanoparticles combined with particle-induced x-ray emission effect'. Nanotechnology 2012; 23:078001-078002. [PMID: 22261552 DOI: 10.1088/0957-4484/23/7/078001] [Citation(s) in RCA: 10] [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: 05/31/2023]
Abstract
A recent paper (Kim et al 2010 Nanotechnology 21 425102) presented results on the combination of irradiation by atomic ions of cells loaded by particles made of heavy atoms. They propose that the projectile induced x-rays emission (PIXE) mechanism has an important contribution to the enhancement of the cell death rate. Experiments made in our group to study the effects of such a combination have shown that the Auger effect induced in the high-Z atoms and the following induction of surrounding water radiolysis has an important contribution to the enhancement of the cell death rate. In the light of our studies we propose an alternative interpretation of the results presented in the paper by Kim et al.
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Affiliation(s)
- Claude Le Sech
- CNRS, Institut des Sciences Moléculaires d'Orsay-ISMO (UMR 8214), Université Paris-Sud 11, 91405 Orsay Cedex, France
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Vilcocq L, Cabiac A, Especel C, Lacombe S, Duprez D. Study of the stability of Pt/SiO2–Al2O3 catalysts in aqueous medium: Application for sorbitol transformation. CATAL COMMUN 2011. [DOI: 10.1016/j.catcom.2011.08.002] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022] Open
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Benabbou A, Guillard C, Pigeot-Rémy S, Cantau C, Pigot T, Lejeune P, Derriche Z, Lacombe S. Water disinfection using photosensitizers supported on silica. J Photochem Photobiol A Chem 2011. [DOI: 10.1016/j.jphotochem.2011.01.023] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.8] [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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Porcel E, Kobayashi K, Usami N, Remita H, Le Sech C, Lacombe S. Photosensitization of plasmid-DNA loaded with platinum nano-particles and irradiated by low energy X-rays. ACTA ACUST UNITED AC 2011. [DOI: 10.1088/1742-6596/261/1/012004] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Kobayashi K, Usami N, Porcel E, Lacombe S, Le Sech C. Enhancement of radiation effect by heavy elements. Mutation Research/Reviews in Mutation Research 2010; 704:123-31. [DOI: 10.1016/j.mrrev.2010.01.002] [Citation(s) in RCA: 141] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/15/2009] [Revised: 12/21/2009] [Accepted: 01/05/2010] [Indexed: 11/30/2022]
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Porcel E, Liehn S, Remita H, Usami N, Kobayashi K, Furusawa Y, Le Sech C, Lacombe S. Platinum nanoparticles: a promising material for future cancer therapy? Nanotechnology 2010; 21:85103. [PMID: 20101074 DOI: 10.1088/0957-4484/21/8/085103] [Citation(s) in RCA: 237] [Impact Index Per Article: 16.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
Recently, the use of gold nanoparticles as potential tumor selective radiosensitizers has been proposed as a breakthrough in radiotherapy. Experiments in living cells and in vivo have demonstrated the efficiency of the metal nanoparticles when combined with low energy x-ray radiations (below conventional 1 MeV Linac radiation). Further studies on DNA have been performed in order to better understand the fundamental processes of sensitization and to further improve the method. In this work, we propose a new strategy based on the combination of platinum nanoparticles with irradiation by fast ions effectively used in hadron therapy. It is observed in particular that nanoparticles enhance strongly lethal damage in DNA, with an efficiency factor close to 2 for double strand breaks. In order to disentangle the effect of the nano-design architecture, a comparison with the effects of dispersed metal atoms at the same concentration has been performed. It is thus shown that the sensitization in nanoparticles is enhanced due to auto-amplified electronic cascades inside the nanoparticles, which reinforces the energy deposition in the close vicinity of the metal. Finally, the combination of fast ion radiation (hadron therapy) with platinum nanoparticles should strongly improve cancer therapy protocols.
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Affiliation(s)
- Erika Porcel
- Laboratoire des Collisions Atomiques et Moléculaires (UMR 8625), Université Paris-Sud 11, CNRS, 91405 Orsay Cedex, France
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Laffon C, Lasne J, Bournel F, Schulte K, Lacombe S, Parent P. Photochemistry of carbon monoxide and methanol in water and nitric acid hydrate ices: A NEXAFS study. Phys Chem Chem Phys 2010; 12:10865-70. [DOI: 10.1039/c0cp00229a] [Citation(s) in RCA: 22] [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: 01/14/2023]
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Usami N, Kobayashi K, Hirayama R, Furusawa Y, Porcel E, Lacombe S, Le Sech C. Comparison of DNA breaks at entrance channel and Bragg peak induced by fast C6+ ions--influence of the addition of platinum atoms on DNA. J Radiat Res 2010; 51:21-26. [PMID: 20173314 DOI: 10.1269/jrr.09035] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [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
When energetic carbon ion beam (GeV range) goes through the matter, inelastic processes such as electronic ionization, molecular and nuclear fragmentation occur. For carbontherapy (hadrontherapy) purpose, it is of interest to compare the number of DNA breaks -single SSB or double DSB- for a given dose at the entrance channel and at the Bragg peak to look for a possible differential effect in the number of DNA breaks induced at these two locations. Samples of free plasmids DNA and complexes of plasmids DNA added with molecules containing platinum have been placed at different locations of an experimental setup simulating penetration depths of the ion beam in water and irradiated by carbon ions 290 MeV/amu. The DNA breaks have been quantified by subsequent electrophoresis on agarose gels. To disentangle the respective role of the direct and indirect effect, a free radical scavenger of hydroxyl radicals HO degree-dimethylsulfoxide DMSO- has been added in some of the experiments. In the range of Linear Energy Transfer-LET 13 - 110 keV/microm-, the number of the DSB was found to be constant versus the LET for a given dose. Contrary, the number of the SSB decreases at the Bragg peak compared to the entrance channel. In the presence of platinum, the number of single and double breaks was considerably enhanced, and follows a similar behaviour than in the free-DNA experiments. Quantitative results on DNA damages do not show significant enhancement due to the nuclear or to the molecular fragmentation in the present experiments.
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Affiliation(s)
- Noriko Usami
- Photon Factory, Institute of Materials Structure Science, High Energy Accelerator Research Organization, Oho, Tsukuba, Ibaraki, Japan
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Parent P, Bournel F, Lasne J, Lacombe S, Strazzulla G, Gardonio S, Lizzit S, Kappler JP, Joly L, Laffon C, Carniato S. The irradiation of ammonia ice studied by near edge x-ray absorption spectroscopy. J Chem Phys 2009; 131:154308. [DOI: 10.1063/1.3243849] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
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Beausoleil E, Chauvignac C, Taverne T, Lacombe S, Pognante L, Leblond B, Pallares D, Oliveira CD, Bachelot F, Carton R, Peillon H, Coutadeur S, Picard V, Lambeng N, Désiré L, Schweighoffer F. Structure-activity relationship of isoform selective inhibitors of Rac1/1b GTPase nucleotide binding. Bioorg Med Chem Lett 2009; 19:5594-8. [PMID: 19716293 DOI: 10.1016/j.bmcl.2009.08.037] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2009] [Revised: 08/07/2009] [Accepted: 08/09/2009] [Indexed: 02/07/2023]
Abstract
The synthesis of a series of berberine, phenantridine and isoquinoline derivatives was realized to explore their Rho GTPase nucleotide inhibitory activity. The compounds were evaluated in a nucleotide binding competition assay against Rac1, Rac1b, Cdc42 and in a cellular Rac GTPase activation assay. The insertion of 19 AA in the splice variant Rac1b is shown to be sufficient to introduce a conformational difference that allows compounds 4, 21, 22, and 26 to exhibit selective inhibition of Rac 1b over Rac1.
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Affiliation(s)
- Eric Beausoleil
- Exonhit Therapeutics, 65 Boulevard Massena, F-75013 Paris, France.
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Usami N, Furusawa Y, Kobayashi K, Lacombe S, Reynaud-Angelin A, Sage E, Wu TD, Croisy A, Guerquin-Kern JL, Le Sech C. Mammalian cells loaded with platinum-containing molecules are sensitized to fast atomic ions. Int J Radiat Biol 2009; 84:603-11. [DOI: 10.1080/09553000802199846] [Citation(s) in RCA: 52] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Jacot W, Colinet B, Bertrand D, Lacombe S, Bozonnat MC, Daurès JP, Pujol JL. Quality of life and comorbidity score as prognostic determinants in non-small-cell lung cancer patients. Ann Oncol 2008; 19:1458-1464. [DOI: 10.1093/annonc/mdn064] [Citation(s) in RCA: 72] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Moreau P, Gnep N, Magnoux P, Guillon E, Lacombe S, Guisnet M. Influence of zeolite structure on ethylbenzene transformation. ACTA ACUST UNITED AC 2008. [DOI: 10.1016/s0167-2991(08)80097-3] [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: 03/07/2023]
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