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Ali Y, Auzel L, Monini C, Kriachok K, Létang JM, Testa E, Maigne L, Beuve M. Monte Carlo simulations of nanodosimetry and radiolytic species production for monoenergetic proton and electron beams: Benchmarking of GEANT4-DNA and LPCHEM codes. Med Phys 2022; 49:3457-3469. [PMID: 35318686 DOI: 10.1002/mp.15609] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [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: 10/04/2021] [Revised: 01/17/2022] [Accepted: 02/14/2022] [Indexed: 01/10/2023] Open
Abstract
PURPOSE In hadrontherapy, biophysical models can be used to predict the biological effect received by cancerous tissues and organs at risk. The input data of these models generally consist of information on nano/micro dosimetric quantities and, concerning some models, reactive species produced in water radiolysis. In order to fully account for the radiation stochastic effects, these input data have to be provided by Monte Carlo track structure (MCTS) codes allowing to estimate physical, physico-chemical, and chemical effects of radiation at the molecular scale. The objective of this study is to benchmark two MCTS codes, Geant4-DNA and LPCHEM, that are useful codes for estimating the biological effects of ions during radiation therapy treatments. MATERIAL AND METHODS In this study we considered the simulation of specific energy spectra for monoenergetic proton beams (10 MeV) as well as radiolysis species production for both electron (1 MeV) and proton (10 MeV) beams with Geant4-DNA and LPCHEM codes. Options 2, 4, and 6 of the Geant4-DNA physics lists have been benchmarked against LPCHEM. We compared probability distributions of energy transfer points in cylindrical nanometric targets (10 nm) positioned in a liquid water box. Then, radiochemical species (· OH, e aq - ${\rm{e}}_{{\rm{aq}}}^ - $ , H 3 O + , H 2 O 2 ${{\rm{H}}_3}{{\rm{O}}^ + },{\rm{\;}}{{\rm{H}}_2}{{\rm{O}}_2}$ , H2 , and O H - ) ${\rm{O}}{{\rm{H}}^ - }){\rm{\;}}$ yields simulated between 10-12 and 10-6 s after irradiation are compared. RESULTS Overall, the specific energy spectra and the chemical yields obtained by the two codes are in good agreement considering the uncertainties on experimental data used to calibrate the parameters of the MCTS codes. For 10 MeV proton beams, ionization and excitation processes are the major contributors to the specific energy deposition (larger than 90%) while attachment, solvation, and vibration processes are minor contributors. LPCHEM simulates tracks with slightly more concentrated energy depositions than Geant4-DNA which translates into slightly faster recombination than Geant4-DNA. Relative deviations (CEV ) with respect to the average of evolution rates of the radical yields between 10-12 and 10-6 s remain below 10%. When comparing execution times between the codes, we showed that LPCHEM is faster than Geant4-DNA by a factor of about four for 1000 primary particles in all simulation stages (physical, physico-chemical, and chemical). In multi-thread mode (four threads), Geant4-DNA computing times are reduced but remain slower than LPCHEM by ∼20% up to ∼50%. CONCLUSIONS For the first time, the entire physical, physico-chemical, and chemical models of two track structure Monte Carlo codes have been benchmarked along with an extensive analysis on the effects on the water radiolysis simulation. This study opens up new perspectives in using specific energy distributions and radiolytic species yields from monoenergetic ions in biophysical models integrated to Monte Carlo software.
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Affiliation(s)
- Yasmine Ali
- Institut de Physique des 2 Infinis de Lyon, Université Claude Bernard Lyon 1, CNRS/IN2P3, 4 rue Enrico Fermi, Villeurbanne, 69622, France
| | - Lucas Auzel
- Laboratoire de Physique de Clermont, Université Clermont Auvergne, CNRS/IN2P3, 4 Avenue Blaise Pascal, Aubière cedex, 63178, France
| | - Caterina Monini
- Institut de Physique des 2 Infinis de Lyon, Université Claude Bernard Lyon 1, CNRS/IN2P3, 4 rue Enrico Fermi, Villeurbanne, 69622, France
| | - Kateryna Kriachok
- Laboratoire de Physique de Clermont, Université Clermont Auvergne, CNRS/IN2P3, 4 Avenue Blaise Pascal, Aubière cedex, 63178, France
| | - Jean Michel Létang
- CREATIS, Université Claude Bernard Lyon 1, CNRS UMR5220, Inserm U1294, INSA-Lyon, Université Lyon 1, Lyon, 69373, France
| | - Etienne Testa
- Institut de Physique des 2 Infinis de Lyon, Université Claude Bernard Lyon 1, CNRS/IN2P3, 4 rue Enrico Fermi, Villeurbanne, 69622, France
| | - Lydia Maigne
- Laboratoire de Physique de Clermont, Université Clermont Auvergne, CNRS/IN2P3, 4 Avenue Blaise Pascal, Aubière cedex, 63178, France
| | - Michael Beuve
- Institut de Physique des 2 Infinis de Lyon, Université Claude Bernard Lyon 1, CNRS/IN2P3, 4 rue Enrico Fermi, Villeurbanne, 69622, France
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Rabus H, Li WB, Nettelbeck H, Schuemann J, Villagrasa C, Beuve M, Di Maria S, Heide B, Klapproth AP, Poignant F, Qiu R, Rudek B. Consistency checks of results from a Monte Carlo code intercomparison for emitted electron spectra and energy deposition around a single gold nanoparticle irradiated by X-rays. RADIAT MEAS 2021; 147:106637. [PMID: 35669292 PMCID: PMC9165644 DOI: 10.1016/j.radmeas.2021.106637] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
Organized by the European Radiation Dosimetry Group (EURADOS), a Monte Carlo code intercomparison exercise was conducted where participants simulated the emitted electron spectra and energy deposition around a single gold nanoparticle (GNP) irradiated by X-rays. In the exercise, the participants scored energy imparted in concentric spherical shells around a spherical volume filled with gold or water as well as the spectral distribution of electrons leaving the GNP. Initially, only the ratio of energy deposition with and without GNP was to be reported. During the evaluation of the exercise, however, the data for energy deposition in the presence and absence of the GNP were also requested. A GNP size of 50 nm and 100 nm diameter was considered as well as two different X-ray spectra (50 kVp and 100kVp). This introduced a redundancy that can be used to cross-validate the internal consistency of the simulation results. In this work, evaluation of the reported results is presented in terms of integral quantities that can be benchmarked against values obtained from physical properties of the radiation spectra and materials involved. The impact of different interaction cross-section datasets and their implementation in the different Monte Carlo codes is also discussed.
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Affiliation(s)
- H Rabus
- Physikalisch-Technische Bundesanstalt, Braunschweig and Berlin, Germany
- European Radiation Dosimetry Group (EURADOS) e.V, Neuherberg, Germany
| | - W B Li
- Institute of Radiation Medicine, Helmholtz Zentrum München - German Research Center for Environmental Health, Neuherberg, Germany
- European Radiation Dosimetry Group (EURADOS) e.V, Neuherberg, Germany
| | - H Nettelbeck
- Physikalisch-Technische Bundesanstalt, Braunschweig and Berlin, Germany
- European Radiation Dosimetry Group (EURADOS) e.V, Neuherberg, Germany
| | - J Schuemann
- Massachusetts General Hospital & Harvard Medical School, Department of Radiation Oncology, Boston, MA, USA
- European Radiation Dosimetry Group (EURADOS) e.V, Neuherberg, Germany
| | - C Villagrasa
- Institut de Radioprotection et de Sûreté Nucléaire, Fontenay-Aux-Roses, France
- European Radiation Dosimetry Group (EURADOS) e.V, Neuherberg, Germany
| | - M Beuve
- Institut de Physique des 2 Infinis, Université Claude Bernard Lyon 1, Villeurbanne, France
- European Radiation Dosimetry Group (EURADOS) e.V, Neuherberg, Germany
| | - S Di Maria
- Centro de Ciências e Tecnologias Nucleares, Instituto Superior Técnico, Universidade de Lisboa, Bobadela LRS, Portugal
- European Radiation Dosimetry Group (EURADOS) e.V, Neuherberg, Germany
| | - B Heide
- Karlsruhe Institute of Technology, Karlsruhe, Germany
- European Radiation Dosimetry Group (EURADOS) e.V, Neuherberg, Germany
| | - A P Klapproth
- Institute of Radiation Medicine, Helmholtz Zentrum München - German Research Center for Environmental Health, Neuherberg, Germany
- TranslaTUM, Klinikum rechts der Isar, Technische Universität München, Munich, Germany
| | - F Poignant
- Institut de Physique des 2 Infinis, Université Claude Bernard Lyon 1, Villeurbanne, France
- Present address: National Institute of Aerospace, Hampton, VA, USA
| | - R Qiu
- Department of Engineering Physics, Tsinghua University, Beijing, China
- European Radiation Dosimetry Group (EURADOS) e.V, Neuherberg, Germany
| | - B Rudek
- Massachusetts General Hospital & Harvard Medical School, Department of Radiation Oncology, Boston, MA, USA
- Present address: Perlmutter Cancer Center, NYU Langone Health, New York City, NY, USA
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Wozny AS, Gauthier A, Alphonse G, Malésys C, Varoclier V, Beuve M, Brichart-Vernos D, Magné N, Vial N, Ardail D, Nakajima T, Rodriguez-Lafrasse C. Involvement of HIF-1α in the Detection, Signaling, and Repair of DNA Double-Strand Breaks after Photon and Carbon-Ion Irradiation. Cancers (Basel) 2021; 13:cancers13153833. [PMID: 34359734 PMCID: PMC8345054 DOI: 10.3390/cancers13153833] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2021] [Revised: 07/22/2021] [Accepted: 07/26/2021] [Indexed: 01/31/2023] Open
Abstract
Simple Summary Hypoxia-Inducible Factor 1α (HIF-1α), the main regulator of the oxygen homeostasis, promotes cancer cell survival through proliferation, angiogenesis, metastasis and radioresistance. Previously, our group demonstrated that silencing HIF-1α under hypoxia leads to a substantial radiosensitization of Head-and-Neck Squamous Cell Carcinoma (HNSCC) cells after both photons and carbon-ions, probably resulting from an accumulation of deleterious complex DNA damage. In this study, we aimed at determining the potential role of HIF-1α in the detection, signaling, and repair of DNA Double-Strand-Breaks (DSBs) in response to both irradiations, under hypoxia, in two HNSCC cell lines and their subpopulations of Cancer-Stem Cells (CSCs). Silencing HIF-1α under hypoxia led us to demonstrate the involvement of this transcriptional regulator in DSB repair in non-CSCS and CSC, thus highlighting its targeting together with radiation as a promising therapeutic strategy against radioresistant tumor cells in hypoxic niches. Abstract Hypoxia-Inducible Factor 1α (HIF-1α), which promotes cancer cell survival, is the main regulator of oxygen homeostasis. Hypoxia combined with photon and carbon ion irradiation (C-ions) stabilizes HIF-1α. Silencing HIF-1α under hypoxia leads to substantial radiosensitization of Head-and-Neck Squamous Cell Carcinoma (HNSCC) cells after both photons and C-ions. Thus, this study aimed to clarify a potential involvement of HIF-1α in the detection, signaling, and repair of DNA Double-Strand-Breaks (DSBs) in response to both irradiations, in two HNSCC cell lines and their subpopulations of Cancer-Stem Cells (CSCs). After confirming the nucleoshuttling of HIF-1α in response to both exposure under hypoxia, we showed that silencing HIF-1α in non-CSCs and CSCs decreased the initiation of the DSB detection (P-ATM), and increased the residual phosphorylated H2AX (γH2AX) foci. While HIF-1α silencing did not modulate 53BP1 expression, P-DNA-PKcs (NHEJ-c) and RAD51 (HR) signals decreased. Altogether, our experiments demonstrate the involvement of HIF-1α in the detection and signaling of DSBs, but also in the main repair pathways (NHEJ-c and HR), without favoring one of them. Combining HIF-1α silencing with both types of radiation could therefore present a potential therapeutic benefit of targeting CSCs mostly present in tumor hypoxic niches.
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Affiliation(s)
- Anne-Sophie Wozny
- Cellular and Molecular Radiobiology Laboratory, Lyon-Sud Medical School, UMR CNRS5822/IP2I, Univ Lyon, Lyon 1 University, 69921 Oullins, France; (A.-S.W.); (A.G.); (G.A.); (C.M.); (V.V.); (D.B.-V.); (N.M.); (N.V.); (D.A.)
- Department of Biochemistry and Molecular Biology, Lyon-Sud Hospital, Hospices Civils de Lyon, 69310 Pierre-Bénite, France
| | - Arnaud Gauthier
- Cellular and Molecular Radiobiology Laboratory, Lyon-Sud Medical School, UMR CNRS5822/IP2I, Univ Lyon, Lyon 1 University, 69921 Oullins, France; (A.-S.W.); (A.G.); (G.A.); (C.M.); (V.V.); (D.B.-V.); (N.M.); (N.V.); (D.A.)
- Department of Biochemistry and Molecular Biology, Lyon-Sud Hospital, Hospices Civils de Lyon, 69310 Pierre-Bénite, France
| | - Gersende Alphonse
- Cellular and Molecular Radiobiology Laboratory, Lyon-Sud Medical School, UMR CNRS5822/IP2I, Univ Lyon, Lyon 1 University, 69921 Oullins, France; (A.-S.W.); (A.G.); (G.A.); (C.M.); (V.V.); (D.B.-V.); (N.M.); (N.V.); (D.A.)
- Department of Biochemistry and Molecular Biology, Lyon-Sud Hospital, Hospices Civils de Lyon, 69310 Pierre-Bénite, France
| | - Céline Malésys
- Cellular and Molecular Radiobiology Laboratory, Lyon-Sud Medical School, UMR CNRS5822/IP2I, Univ Lyon, Lyon 1 University, 69921 Oullins, France; (A.-S.W.); (A.G.); (G.A.); (C.M.); (V.V.); (D.B.-V.); (N.M.); (N.V.); (D.A.)
| | - Virginie Varoclier
- Cellular and Molecular Radiobiology Laboratory, Lyon-Sud Medical School, UMR CNRS5822/IP2I, Univ Lyon, Lyon 1 University, 69921 Oullins, France; (A.-S.W.); (A.G.); (G.A.); (C.M.); (V.V.); (D.B.-V.); (N.M.); (N.V.); (D.A.)
| | - Michael Beuve
- Univ Lyon, Lyon 1 University, UMR CNRS5822/IP2I, 69100 Villeurbanne, France;
| | - Delphine Brichart-Vernos
- Cellular and Molecular Radiobiology Laboratory, Lyon-Sud Medical School, UMR CNRS5822/IP2I, Univ Lyon, Lyon 1 University, 69921 Oullins, France; (A.-S.W.); (A.G.); (G.A.); (C.M.); (V.V.); (D.B.-V.); (N.M.); (N.V.); (D.A.)
| | - Nicolas Magné
- Cellular and Molecular Radiobiology Laboratory, Lyon-Sud Medical School, UMR CNRS5822/IP2I, Univ Lyon, Lyon 1 University, 69921 Oullins, France; (A.-S.W.); (A.G.); (G.A.); (C.M.); (V.V.); (D.B.-V.); (N.M.); (N.V.); (D.A.)
- Department of Radiotherapy, Institute of Cancerology Lucien Neuwirth, 42270 Saint-Priest-en-Jarez, France
| | - Nicolas Vial
- Cellular and Molecular Radiobiology Laboratory, Lyon-Sud Medical School, UMR CNRS5822/IP2I, Univ Lyon, Lyon 1 University, 69921 Oullins, France; (A.-S.W.); (A.G.); (G.A.); (C.M.); (V.V.); (D.B.-V.); (N.M.); (N.V.); (D.A.)
- Department of Radiotherapy, Institute of Cancerology Lucien Neuwirth, 42270 Saint-Priest-en-Jarez, France
| | - Dominique Ardail
- Cellular and Molecular Radiobiology Laboratory, Lyon-Sud Medical School, UMR CNRS5822/IP2I, Univ Lyon, Lyon 1 University, 69921 Oullins, France; (A.-S.W.); (A.G.); (G.A.); (C.M.); (V.V.); (D.B.-V.); (N.M.); (N.V.); (D.A.)
| | - Tetsuo Nakajima
- Department of Radiation Effects Research, National Institute of Radiological Sciences, National Institute for Quantum and Radiological Science and Technology, Chiba 263-8555, Japan;
| | - Claire Rodriguez-Lafrasse
- Cellular and Molecular Radiobiology Laboratory, Lyon-Sud Medical School, UMR CNRS5822/IP2I, Univ Lyon, Lyon 1 University, 69921 Oullins, France; (A.-S.W.); (A.G.); (G.A.); (C.M.); (V.V.); (D.B.-V.); (N.M.); (N.V.); (D.A.)
- Department of Biochemistry and Molecular Biology, Lyon-Sud Hospital, Hospices Civils de Lyon, 69310 Pierre-Bénite, France
- Correspondence: ; Tel.: +33-426-235-965
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Rabus H, Li WB, Villagrasa C, Schuemann J, Hepperle PA, de la Fuente Rosales L, Beuve M, Di Maria S, Klapproth AP, Li CY, Poignant F, Rudek B, Nettelbeck H. Intercomparison of Monte Carlo calculated dose enhancement ratios for gold nanoparticles irradiated by X-rays: Assessing the uncertainty and correct methodology for extended beams. Phys Med 2021; 84:241-253. [PMID: 33766478 DOI: 10.1016/j.ejmp.2021.03.005] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/09/2020] [Revised: 02/24/2021] [Accepted: 03/01/2021] [Indexed: 12/12/2022] Open
Abstract
Results of a Monte Carlo code intercomparison exercise for simulations of the dose enhancement from a gold nanoparticle (GNP) irradiated by X-rays have been recently reported. To highlight potential differences between codes, the dose enhancement ratios (DERs) were shown for the narrow-beam geometry used in the simulations, which leads to values significantly higher than unity over distances in the order of several tens of micrometers from the GNP surface. As it has come to our attention that the figures in our paper have given rise to misinterpretation as showing 'the' DERs of GNPs under diagnostic X-ray irradiation, this article presents estimates of the DERs that would have been obtained with realistic radiation field extensions and presence of secondary particle equilibrium (SPE). These DER values are much smaller than those for a narrow-beam irradiation shown in our paper, and significant dose enhancement is only found within a few hundred nanometers around the GNP. The approach used to obtain these estimates required the development of a methodology to identify and, where possible, correct results from simulations whose implementation deviated from the initial exercise definition. Based on this methodology, literature on Monte Carlo simulated DERs has been critically assessed.
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Affiliation(s)
- H Rabus
- Physikalisch-Technische Bundesanstalt, Braunschweig and Berlin, Germany; European Radiation Dosimetry Group (EURADOS) e.V, Neuherberg, Germany
| | - W B Li
- Institute of Radiation Medicine, Helmholtz Zentrum München - German Research Center for Environmental Health, Neuherberg, Germany; European Radiation Dosimetry Group (EURADOS) e.V, Neuherberg, Germany
| | - C Villagrasa
- Institut de Radioprotection et de Sûreté Nucléaire, Fontenay-Aux-Roses, France; European Radiation Dosimetry Group (EURADOS) e.V, Neuherberg, Germany
| | - J Schuemann
- Massachusetts General Hospital & Harvard Medical School, Department of Radiation Oncology, Boston, MA, USA; European Radiation Dosimetry Group (EURADOS) e.V, Neuherberg, Germany
| | - P A Hepperle
- Physikalisch-Technische Bundesanstalt, Braunschweig and Berlin, Germany; Leibniz Universität Hannover, Hannover, Germany
| | | | - M Beuve
- Institut de Physique des 2 Infinis, Université Claude Bernard Lyon 1, Villeurbanne, France; European Radiation Dosimetry Group (EURADOS) e.V, Neuherberg, Germany
| | - S Di Maria
- Centro de Ciências e Tecnologias Nucleares, Instituto Superior Técnico, Universidade de Lisboa, Bobadela LRS, Portugal; European Radiation Dosimetry Group (EURADOS) e.V, Neuherberg, Germany
| | - A P Klapproth
- Institute of Radiation Medicine, Helmholtz Zentrum München - German Research Center for Environmental Health, Neuherberg, Germany; TranslaTUM, Klinikum rechts der Isar, Technische Universität München, Munich, Germany
| | - C Y Li
- Department of Engineering Physics, Tsinghua University, Beijing, China; Nuctech Company Limited, Beijing, China
| | - F Poignant
- Institut de Physique des 2 Infinis, Université Claude Bernard Lyon 1, Villeurbanne, France; NASA Langley Research Center, Hampton, VA, USA
| | - B Rudek
- Physikalisch-Technische Bundesanstalt, Braunschweig and Berlin, Germany; Massachusetts General Hospital & Harvard Medical School, Department of Radiation Oncology, Boston, MA, USA; Perlmutter Cancer Center, NYU Langone Health, New York City, NY, USA
| | - H Nettelbeck
- Physikalisch-Technische Bundesanstalt, Braunschweig and Berlin, Germany; European Radiation Dosimetry Group (EURADOS) e.V, Neuherberg, Germany
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Ladjal H, Beuve M, Giraud P, Shariat B. Towards Non-Invasive Lung Tumor Tracking Based on Patient Specific Model of Respiratory System. IEEE Trans Biomed Eng 2021; 68:2730-2740. [PMID: 33476262 DOI: 10.1109/tbme.2021.3053321] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
The goal of this paper is to calculate a complex internal respiratory and tumoral movements by measuring respiratory air flows and thorax movements. In this context, we present a new lung tumor tracking approach based on a patient-specific biomechanical model of the respiratory system, which takes into account the physiology of respiratory motion to simulate the real non-reproducible motion. The behavior of the lungs, is directly driven by the simulated actions of the breathing muscles, i.e. the diaphragm and the intercostal muscles (the rib cage). In this paper, the lung model is monitored and controlled by a personalized lung pressure/volume relationship during a whole respiratory cycle. The lung pressure and rib kinematics are patient specific and obtained by surrogate measurement. The rib displacement corresponding to the transformation which was computed by finite helical axis method from the end of exhalation (EE) to the end of inhalation (EI). The lung pressure is calculated by an optimization framework based on inverse finite element analysis, by minimizing the lung volume errors, between the respiratory volume (respiratory airflow exchange) and the simulated volume (calculated by biomechanical simulation). We have evaluated the model accuracy on five public datasets. We have also evaluated the lung tumor motion identified in 4D CT scan images and compared it with the trajectory that was obtained by finite element simulation. The effects of rib kinematics on lung tumor trajectory were investigated. Over all phases of respiration, our developed model is able to predict the lung tumor motion with an average landmark error of [Formula: see text]. The results demonstrate the effectiveness of our physics-based model. We believe that this model can be potentially used in 4D dose computation, removal of breathing motion artifacts in positron emission tomography (PET) or gamma prompt image reconstruction.
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Ladjal H, Giroux M, Beuve M, Giraud P, Shariat B. Patient-specific physiological model of the respiratory system based on inverse finite element analysis: a comparative study. Comput Methods Biomech Biomed Engin 2020. [DOI: 10.1080/10255842.2020.1713473] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- H. Ladjal
- LIRIS CNRS UMR 5205, Université de Lyon, Université Lyon 1, France
- IPNL CNRS UMR 5822, Université de Lyon, Université Lyon 1, France
| | - M. Giroux
- LIRIS CNRS UMR 5205, Université de Lyon, Université Lyon 1, France
| | - M. Beuve
- IPNL CNRS UMR 5822, Université de Lyon, Université Lyon 1, France
| | - P. Giraud
- Service d'Oncologie Radiothérapie, Hôpital Européen Georges Pompidou, France
| | - B. Shariat
- LIRIS CNRS UMR 5205, Université de Lyon, Université Lyon 1, France
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Abstract
NanOx is a biophysical model recently developed in the context of hadrontherapy to predict the cell survival probability from ionizing radiation. It postulates that this may be factorized into two independent terms describing the cell response to two classes of biological events that occur in the sequence of an irradiation: the local lethal events that occur at nanometric scale and can by themselves induce cell death, and the non-local lethal events that lead to cell death by an effect of accumulation and/or interaction at a larger scale. Here we address how local lethal events are modeled in terms of the inactivation of undifferentiated nanometric targets via an "effective local lethal function F", which characterizes the response of each cell line to the spectra of "restricted specific energy". F is initially determined as a linear combination of basis functions. Then, a parametric expression is used to reproduce the function's main features, a threshold and a saturation, while at the same time reducing the number of free parameters. This strategy was applied to three cell lines in response to ions of different type and energy, which allows for benchmarking of the α(LET) curves predicted with both effective local lethal functions against the experimental data.
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Affiliation(s)
- Caterina Monini
- University of Lyon, University of Claude Bernard Lyon 1, CNRS/IN2P3, IP2I Lyon, F-69622, Villeurbanne, France
| | - Micaela Cunha
- University of Lyon, University of Claude Bernard Lyon 1, CNRS/IN2P3, IP2I Lyon, F-69622, Villeurbanne, France
| | - Laurie Chollier
- University of Lyon, University of Claude Bernard Lyon 1, CNRS/IN2P3, IP2I Lyon, F-69622, Villeurbanne, France
| | - Etienne Testa
- University of Lyon, University of Claude Bernard Lyon 1, CNRS/IN2P3, IP2I Lyon, F-69622, Villeurbanne, France
| | - Michael Beuve
- University of Lyon, University of Claude Bernard Lyon 1, CNRS/IN2P3, IP2I Lyon, F-69622, Villeurbanne, France
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Li WB, Belchior A, Beuve M, Chen YZ, Di Maria S, Friedland W, Gervais B, Heide B, Hocine N, Ipatov A, Klapproth AP, Li CY, Li JL, Multhoff G, Poignant F, Qiu R, Rabus H, Rudek B, Schuemann J, Stangl S, Testa E, Villagrasa C, Xie WZ, Zhang YB. Intercomparison of dose enhancement ratio and secondary electron spectra for gold nanoparticles irradiated by X-rays calculated using multiple Monte Carlo simulation codes. Phys Med 2020; 69:147-163. [PMID: 31918367 DOI: 10.1016/j.ejmp.2019.12.011] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/04/2019] [Revised: 11/29/2019] [Accepted: 12/15/2019] [Indexed: 12/22/2022] Open
Abstract
PURPOSE Targeted radiation therapy has seen an increased interest in the past decade. In vitro and in vivo experiments showed enhanced radiation doses due to gold nanoparticles (GNPs) to tumors in mice and demonstrated a high potential for clinical application. However, finding a functionalized molecular formulation for actively targeting GNPs in tumor cells is challenging. Furthermore, the enhanced energy deposition by secondary electrons around GNPs, particularly by short-ranged Auger electrons is difficult to measure. Computational models, such as Monte Carlo (MC) radiation transport codes, have been used to estimate the physical quantities and effects of GNPs. However, as these codes differ from one to another, the reliability of physical and dosimetric quantities needs to be established at cellular and molecular levels, so that the subsequent biological effects can be assessed quantitatively. METHODS In this work, irradiation of single GNPs of 50 nm and 100 nm diameter by X-ray spectra generated by 50 and 100 peak kilovoltages was simulated for a defined geometry setup, by applying multiple MC codes in the EURADOS framework. RESULTS The mean dose enhancement ratio of the first 10 nm-thick water shell around a 100 nm GNP ranges from 400 for 100 kVp X-rays to 600 for 50 kVp X-rays with large uncertainty factors up to 2.3. CONCLUSIONS It is concluded that the absolute dose enhancement effects have large uncertainties and need an inter-code intercomparison for a high quality assurance; relative properties may be a better measure until more experimental data is available to constrain the models.
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Affiliation(s)
- W B Li
- Institute of Radiation Medicine, Helmholtz Zentrum München - German Research Center for Environmental Health (GmbH), Ingolstädter Landstr. 1, 85764 Neuherberg, Germany.
| | - A Belchior
- Centro de Ciências e Tecnologias Nucleares, Instituto Superior Técnico, Universidade de Lisboa, Estrada Nacional 10, 2695-066 Bobadela LRS, Portugal
| | - M Beuve
- Institut de Physique Nucléaire de Lyon, Université de Lyon, Université Claude Bernard Lyon 1, CNRS/IN2P3 UMR 5822, Villeurbanne, France
| | - Y Z Chen
- Department of Engineering Physics, Tsinghua University, Beijing, China
| | - S Di Maria
- Centro de Ciências e Tecnologias Nucleares, Instituto Superior Técnico, Universidade de Lisboa, Estrada Nacional 10, 2695-066 Bobadela LRS, Portugal
| | - W Friedland
- Institute of Radiation Medicine, Helmholtz Zentrum München - German Research Center for Environmental Health (GmbH), Ingolstädter Landstr. 1, 85764 Neuherberg, Germany
| | - B Gervais
- Normandie University, ENSICAEN, UNICAEN, CEA, CNRS, CIMAP, UMR 6252, BP 5133, F-14070 Caen Cedex 05, France
| | - B Heide
- Karlsruhe Institute of Technology, Karlsruhe, Germany
| | - N Hocine
- Institut de Radioprotection et de Sûreté Nucléaire, Fontenay-Aux-Roses, France
| | - A Ipatov
- Alferov Federal State Budgetary Institution of Higher Education and Science Saint Petersburg National Research Academic University of the Russian Academy of Sciences, St. Petersburg, Russia
| | - A P Klapproth
- Institute of Radiation Medicine, Helmholtz Zentrum München - German Research Center for Environmental Health (GmbH), Ingolstädter Landstr. 1, 85764 Neuherberg, Germany; TranslaTUM, Klinikum rechts der Isar, Technische Universität München, Munich, Germany
| | - C Y Li
- Department of Engineering Physics, Tsinghua University, Beijing, China; Nuctech Company Limited, Beijing, China
| | - J L Li
- Department of Engineering Physics, Tsinghua University, Beijing, China
| | - G Multhoff
- TranslaTUM, Klinikum rechts der Isar, Technische Universität München, Munich, Germany
| | - F Poignant
- Institut de Physique Nucléaire de Lyon, Université de Lyon, Université Claude Bernard Lyon 1, CNRS/IN2P3 UMR 5822, Villeurbanne, France
| | - R Qiu
- Department of Engineering Physics, Tsinghua University, Beijing, China
| | - H Rabus
- Physikalisch-Technische Bundesanstalt, Braunschweig, Germany
| | - B Rudek
- Physikalisch-Technische Bundesanstalt, Braunschweig, Germany; Massachusetts General Hospital & Harvard Medical School, Department of Radiation Oncology, Boston, MA, USA
| | - J Schuemann
- Massachusetts General Hospital & Harvard Medical School, Department of Radiation Oncology, Boston, MA, USA
| | - S Stangl
- TranslaTUM, Klinikum rechts der Isar, Technische Universität München, Munich, Germany
| | - E Testa
- Institut de Physique Nucléaire de Lyon, Université de Lyon, Université Claude Bernard Lyon 1, CNRS/IN2P3 UMR 5822, Villeurbanne, France
| | - C Villagrasa
- Institut de Radioprotection et de Sûreté Nucléaire, Fontenay-Aux-Roses, France
| | - W Z Xie
- Department of Engineering Physics, Tsinghua University, Beijing, China
| | - Y B Zhang
- Peking University Cancer Hospital, Beijing, China
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9
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Wozny AS, Vares G, Alphonse G, Lauret A, Monini C, Magné N, Cuerq C, Fujimori A, Monboisse JC, Beuve M, Nakajima T, Rodriguez-Lafrasse C. ROS Production and Distribution: A New Paradigm to Explain the Differential Effects of X-ray and Carbon Ion Irradiation on Cancer Stem Cell Migration and Invasion. Cancers (Basel) 2019; 11:cancers11040468. [PMID: 30987217 PMCID: PMC6521340 DOI: 10.3390/cancers11040468] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [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: 02/12/2019] [Revised: 03/26/2019] [Accepted: 04/01/2019] [Indexed: 02/06/2023] Open
Abstract
Although conventional radiotherapy promotes the migration/invasion of cancer stem cells (CSCs) under normoxia, carbon ion (C-ion) irradiation actually decreases these processes. Unraveling the mechanisms of this discrepancy, particularly under the hypoxic conditions that pertain in niches where CSCs are preferentially localized, would provide a better understanding of the origins of metastases. Invasion/migration, proteins involved in epithelial-to-mesenchymal transition (EMT), and expression of MMP-2 and HIF-1α were quantified in the CSC subpopulations of two head-and-neck squamous cell carcinoma (HNSCC) cell lines irradiated with X-rays or C-ions. X-rays triggered HNSCC-CSC migration/invasion under normoxia, however this effect was significantly attenuated under hypoxia. C-ions induced fewer of these processes in both oxygenation conditions. The differential response to C-ions was associated with a lack of HIF-1α stabilization, MMP-2 expression, or activation of kinases of the main EMT signaling pathways. Furthermore, we demonstrated a major role of reactive oxygen species (ROS) in the triggering of invasion/migration in response to X-rays. Monte-Carlo simulations demonstrated that HO● radicals are quantitatively higher after C-ions than after X-rays, however they are very differently distributed within cells. We postulate that the uniform distribution of ROS after X-rays induces the mechanisms leading to invasion/migration, which ROS concentrated in C-ion tracks are unable to trigger.
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Affiliation(s)
- Anne-Sophie Wozny
- Laboratoire de Radiobiologie Cellulaire et Moléculaire, Faculté de Médecine Lyon-Sud, Univ Lyon, Université Lyon 1, UMR CNRS5822/IN2P3, IPNL, PRISME, 69921 Oullins Cedex, France.
- Centre Hospitalier Lyon-Sud, Service de Biochimie et Biologie Moléculaire, Hospices Civils de Lyon, 69495 Pierre-Bénite, France.
| | - Guillaume Vares
- Advanced Medical Instrumentation Unit, Okinawa Institute of Science and Technology Graduate University, Okinawa 904-0495, Japan.
- Department of Radiation Effects Research, National Institute of Radiological Sciences, National Institute for Quantum and Radiological Science and Technology, Inage-ku, Chiba 263-8555, Japan.
| | - Gersende Alphonse
- Laboratoire de Radiobiologie Cellulaire et Moléculaire, Faculté de Médecine Lyon-Sud, Univ Lyon, Université Lyon 1, UMR CNRS5822/IN2P3, IPNL, PRISME, 69921 Oullins Cedex, France.
- Centre Hospitalier Lyon-Sud, Service de Biochimie et Biologie Moléculaire, Hospices Civils de Lyon, 69495 Pierre-Bénite, France.
| | - Alexandra Lauret
- Laboratoire de Radiobiologie Cellulaire et Moléculaire, Faculté de Médecine Lyon-Sud, Univ Lyon, Université Lyon 1, UMR CNRS5822/IN2P3, IPNL, PRISME, 69921 Oullins Cedex, France.
| | - Caterina Monini
- Univ Lyon, Université Lyon 1, UMR CNRS5822 /IN2P3, IPNL, PRISME, PHABIO, 69322 Villeurbanne, France.
| | - Nicolas Magné
- Laboratoire de Radiobiologie Cellulaire et Moléculaire, Faculté de Médecine Lyon-Sud, Univ Lyon, Université Lyon 1, UMR CNRS5822/IN2P3, IPNL, PRISME, 69921 Oullins Cedex, France.
- Département de Radiothérapie, Institut de Cancérologie de la Loire Lucien Neuwirth, 42270 St Priest en Jarez, France.
| | - Charlotte Cuerq
- Centre Hospitalier Lyon-Sud, Service de Biochimie et Biologie Moléculaire, Hospices Civils de Lyon, 69495 Pierre-Bénite, France.
| | - Akira Fujimori
- Department of Basic Medical Sciences for Radiation Damages, National Institute of Radiological Sciences, Inage-ku, 263-8555 Chiba, Japan.
| | - Jean-Claude Monboisse
- Université de Reims Champagne-Ardenne, CNRS UMR 7369, CHU de Reims, 51100 Reims, France.
| | - Michael Beuve
- Univ Lyon, Université Lyon 1, UMR CNRS5822 /IN2P3, IPNL, PRISME, PHABIO, 69322 Villeurbanne, France.
| | - Tetsuo Nakajima
- Department of Radiation Effects Research, National Institute of Radiological Sciences, National Institute for Quantum and Radiological Science and Technology, Inage-ku, Chiba 263-8555, Japan.
| | - Claire Rodriguez-Lafrasse
- Laboratoire de Radiobiologie Cellulaire et Moléculaire, Faculté de Médecine Lyon-Sud, Univ Lyon, Université Lyon 1, UMR CNRS5822/IN2P3, IPNL, PRISME, 69921 Oullins Cedex, France.
- Centre Hospitalier Lyon-Sud, Service de Biochimie et Biologie Moléculaire, Hospices Civils de Lyon, 69495 Pierre-Bénite, France.
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10
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Vogin G, Wambersie A, Pötter R, Beuve M, Combs SE, Magrin G, Mayer R, Mock U, Sarrut D, Schreiner T, Fossati P, Balosso J. Concepts and terms for dose/volume parameters in carbon-ion radiotherapy: Conclusions of the ULICE taskforce. Cancer Radiother 2018; 22:802-809. [PMID: 30327228 DOI: 10.1016/j.canrad.2017.11.016] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [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: 10/02/2017] [Revised: 11/24/2017] [Accepted: 11/29/2017] [Indexed: 01/24/2023]
Abstract
PURPOSE The Union of Light Ion Centers in Europe (ULICE) program addressed the need for uniting scientific results for carbon-ion radiation therapy obtained by several institutions worldwide in different fields of excellence, and translating them into a real benefit to the community. Particularly, the concepts for dose/volume parameters developed in photon radiotherapy cannot be extrapolated to high linear energy transfer particles. METHODS AND MATERIALS The ULICE-WP2 taskforce included radiation oncologists involved in carbon-ion radiation therapy and International Commission on Radiation Units and Measurements, radiation biologists, expert physicists in the fields of carbon-ion radiation therapy, microdosimetry, biological modeling and image-guided radiotherapy. Consensual reports emerged from multiple discussions within both the restricted group and the wider ULICE community. Public deliverables were produced and disseminated to the European Commission. RESULTS Here we highlight the disparity in practices between treating centers, then address the main topics to finally elaborate specific recommendations. Although it appears relatively simple to add geometrical margins around the clinical target volume to obtain the planning target volume as performed in photon radiotherapy, this procedure is not appropriate for carbon-ion radiation therapy. Due to the variation of the radiation quality in depth, there is no generic relative biological effectiveness value for carbon-ions outside of an isolated point, for a given fractionation and specific experimental conditions. Absorbed dose and "equieffective dose" for specified conditions must always be reported. CONCLUSIONS This work contributed to the development of standard operating procedures for carbon-ion radiation therapy clinical trials. These procedures are now being applied, particularly in the first phase III international, multicenter trial (PHRC Étoile).
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Affiliation(s)
- G Vogin
- Département de radiothérapie, institut de cancérologie de Lorraine Alexis-Vautrin, 54519 Vandœuvre-lès-Nancy cedex, France; CNRS, UMR 7365, ingénierie moléculaire et physiopathologie articulaire (Imopa), 54505 Vandœuvre-lès-Nancy cedex, France; Université de Lorraine, 54505 Vandoeuvre-lès-Nancy, France.
| | - A Wambersie
- Institut de recherche expérimentale et clinique (Irec), Molecular Imaging, Radiotherapy and Oncology (MIRO), cliniques universitaires Saint-Luc, 1200 Brussels, Belgium; Université catholique de Louvain (UCL), 1348 Louvain-la-Neuve, Belgium
| | - R Pötter
- Department of Radiotherapy, Comprehensive Cancer Center, Vienna, Austria; Medical University of Vienna, Vienna, Austria
| | - M Beuve
- Université Lyon 1, 69100 Villeurbanne, France; Institut de physique nucléaire de Lyon, 69622 Villeurbanne cedex, France
| | - S E Combs
- Klinik und Poliklinik für RadioOnkologie und Strahlentherapie, Technische Universität München (TUM), 81675 München, Germany; Instituts für Innovative Radiotherapie (iRT), Helmholtz Zentrum München, 85764 Oberschleißheim, Germany
| | - G Magrin
- EBG MedAustron GmbH, 2700 Wiener-Neustadt, Austria
| | - R Mayer
- EBG MedAustron GmbH, 2700 Wiener-Neustadt, Austria
| | - U Mock
- EBG MedAustron GmbH, 2700 Wiener-Neustadt, Austria
| | - D Sarrut
- Université Lyon 1, 69100 Villeurbanne, France; CNRS, UMR 5220 Laboratoire Creatis, 69100 Villeurbanne, France; Inserm, U1044 Laboratoire Creatis, 69100 Villeurbanne, France
| | - T Schreiner
- EBG MedAustron GmbH, 2700 Wiener-Neustadt, Austria
| | - P Fossati
- Università di Milano-Medicina e Chirurgia, Milano, Italy; Fondazione CNAO (Centro Nazionale di Adroterapia Oncologica), Pavia, Italy
| | - J Balosso
- Service de cancérologie-radiothérapie, hôpital Albert-Michallon, CHU Grenoble Alpes, 38043 Grenoble cedex 09, France; IPNL, France Hadron national research infrastructure, 69000 Lyon, France; Université Grenoble Alpes, 38400 Saint-Martin-d'Hères, France
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11
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Touileb Y, Ladjal H, Beuve M, Shariat B. Particle-beam-dependent optimization for Monte Carlo simulation in hadrontherapy using tetrahedral geometries. Phys Med Biol 2018; 63:135021. [PMID: 29893292 DOI: 10.1088/1361-6560/aacbe5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
The use of tetrahedral-based phantoms in conjunction with Monte Carlo dose calculation techniques has shown high capabilities in radiation therapy. However, the generation of a precise dose distribution can be very time-consuming since a fine tetrahedral mesh is required. In this work, we propose a new method that defines the density distribution of patient-specific tetrahedral phantoms, based upon the CT-scans and the direction of the particle beam. The final purpose is to coarsen the tetrahedral mesh to improve computational performance in Monte Carlo simulations while guaranteeing a precise dose distribution in the target volume. Contrarily to the state of the art methods that calculate the density value of a tetrahedron, locally based only on the CT-scans, our approach also takes into account the direction of the beam to minimize the error of the water equivalent thickness of the tetrahedrons before the tumor volume. In this study, the experiments carried out on a multi-layer computational phantom, and a thorax geometry, show that by applying our method on a coarse mesh, we offer a better dose distribution inside the tumor compared to other density mapping methods, in the same level of detail. This is due to the reduction of the water equivalent path length error from 9.65 mm to 0.62 mm in the case of the multi-layer phantom, and from 2.42 mm to 0.48 mm for the thorax geometry. Moreover, a similar dose coverage is obtained with refined tetrahedral meshes. As a consequence of the reduction of the number of tetrahedrons, computational time is found to be 25% shorter than both the refined tetrahedral mesh and the voxel-based structure in most cases. Using a coarse tetrahedral mesh to have accurate dose distributions on a given target is feasible as long as the water equivalent path length in the direction of the beam is respected.
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Affiliation(s)
- Yazid Touileb
- Univeristé de Lyon, Univeristé Claude Bernard Lyon 1, LIRIS, UMR 5205 F-69622, France. Univeristé de Lyon, Univeristé Claude Bernard Lyon 1, IPNL, UMR 5822 F-69622, France
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12
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Wozny A, Vares G, Nakajima T, Fujimori A, Beuve M, Alphonse G, Rodriguez-Lafrasse C. EP-2281: Role of HIF-1α in the migration/invasion processes in response to photon and C-ion irradiations. Radiother Oncol 2018. [DOI: 10.1016/s0167-8140(18)32590-8] [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: 11/25/2022]
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13
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Moncharmont C, Guy JB, Wozny AS, Gilormini M, Battiston-Montagne P, Ardail D, Beuve M, Alphonse G, Simoëns X, Rancoule C, Rodriguez-Lafrasse C, Magné N. Carbon ion irradiation withstands cancer stem cells' migration/invasion process in Head and Neck Squamous Cell Carcinoma (HNSCC). Oncotarget 2018; 7:47738-47749. [PMID: 27374096 PMCID: PMC5216975 DOI: 10.18632/oncotarget.10281] [Citation(s) in RCA: 24] [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: 01/24/2016] [Accepted: 05/28/2016] [Indexed: 12/12/2022] Open
Abstract
Cancer Stem Cells (CSCs) in Head and Neck Squamous Cell Carcinoma (HNSCC) have extremely aggressive profile (high migratory and invasive potential). These characteristics can explain their resistance to conventional treatment. Efficacy of photon and carbon ion irradiation with addition of cetuximab (5 nM) is studied on clonogenic death, migration and invasion of two HNSCC populations: SQ20B and SQ20B/CSCs. SQ20B express E-cadherin and overexpress EGFR while SQ20B/CSCs express N-cadherin and low EGFR. Cetuximab strongly inhibits SQ20B proliferation but has no effect on SQ20B/CSCs. 2 Gy photon irradiation enhances migration and invasiveness in both populations (p < 0.05), while cetuximab only stops SQ20B migration (p < 0.005). Carbon irradiation significantly inhibits invasion in both populations (p < 0.05), and the association with cetuximab significantly inhibits invasion in both populations (p < 0.005). These results highlight CSCs characteristics: EGFRLow, cetuximab-resistant, and highly migratory. Carbon ion irradiation appears to be a very promising therapeutic modality counteracting migration/invasion process in both parental cells and CSCs in contrast to photon irradiation.
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Affiliation(s)
- Coralie Moncharmont
- Université Lyon 1, Faculté de Médecine-Lyon-Sud, Oullins, 69921, France.,Laboratoire de Radiobiologie Cellulaire et Moléculaire, Institut de Physique Nucléaire de Lyon, IPNL, Villeurbanne, 69622, France.,Département de Radiothérapie, Institut de Cancérologie de la Loire - Lucien Neuwirth, St Priest en Jarez, 42270, France
| | - Jean-Baptiste Guy
- Université Lyon 1, Faculté de Médecine-Lyon-Sud, Oullins, 69921, France.,Laboratoire de Radiobiologie Cellulaire et Moléculaire, Institut de Physique Nucléaire de Lyon, IPNL, Villeurbanne, 69622, France.,Département de Radiothérapie, Institut de Cancérologie de la Loire - Lucien Neuwirth, St Priest en Jarez, 42270, France
| | - Anne-Sophie Wozny
- Université Lyon 1, Faculté de Médecine-Lyon-Sud, Oullins, 69921, France.,Laboratoire de Radiobiologie Cellulaire et Moléculaire, Institut de Physique Nucléaire de Lyon, IPNL, Villeurbanne, 69622, France.,Hospices Civils de Lyon, Lyon, 69229, France
| | - Marion Gilormini
- Université Lyon 1, Faculté de Médecine-Lyon-Sud, Oullins, 69921, France.,Laboratoire de Radiobiologie Cellulaire et Moléculaire, Institut de Physique Nucléaire de Lyon, IPNL, Villeurbanne, 69622, France
| | - Priscilla Battiston-Montagne
- Université Lyon 1, Faculté de Médecine-Lyon-Sud, Oullins, 69921, France.,Laboratoire de Radiobiologie Cellulaire et Moléculaire, Institut de Physique Nucléaire de Lyon, IPNL, Villeurbanne, 69622, France
| | - Dominique Ardail
- Université Lyon 1, Faculté de Médecine-Lyon-Sud, Oullins, 69921, France.,Laboratoire de Radiobiologie Cellulaire et Moléculaire, Institut de Physique Nucléaire de Lyon, IPNL, Villeurbanne, 69622, France.,Hospices Civils de Lyon, Lyon, 69229, France
| | - Michael Beuve
- Institut de Physique Nucléaire de Lyon, IPNL, Villeurbanne, 69622, France
| | - Gersende Alphonse
- Laboratoire de Radiobiologie Cellulaire et Moléculaire, Institut de Physique Nucléaire de Lyon, IPNL, Villeurbanne, 69622, France.,Hospices Civils de Lyon, Lyon, 69229, France
| | - Xavier Simoëns
- Département de Pharmacologie Clinique et d'Innovation, Institut de Cancérologie de la Loire - Lucien Neuwirth, St Priest en Jarez, 42270, France
| | - Chloé Rancoule
- Département de Radiothérapie, Institut de Cancérologie de la Loire - Lucien Neuwirth, St Priest en Jarez, 42270, France
| | - Claire Rodriguez-Lafrasse
- Université Lyon 1, Faculté de Médecine-Lyon-Sud, Oullins, 69921, France.,Laboratoire de Radiobiologie Cellulaire et Moléculaire, Institut de Physique Nucléaire de Lyon, IPNL, Villeurbanne, 69622, France.,Hospices Civils de Lyon, Lyon, 69229, France
| | - Nicolas Magné
- Université Lyon 1, Faculté de Médecine-Lyon-Sud, Oullins, 69921, France.,Laboratoire de Radiobiologie Cellulaire et Moléculaire, Institut de Physique Nucléaire de Lyon, IPNL, Villeurbanne, 69622, France.,Département de Radiothérapie, Institut de Cancérologie de la Loire - Lucien Neuwirth, St Priest en Jarez, 42270, France
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Giroux M, Ladjal H, Beuve M, Giraud P, Shariat B. Patient-Specific Biomechanical Modeling of the Lung Tumor for Radiation Therapy. Comput Methods Biomech Biomed Engin 2017; 20:95-96. [DOI: 10.1080/10255842.2017.1382878] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- M. Giroux
- LIRIS CNRS UMR 5205, Université de Lyon, Université Lyon 1, France
| | - H. Ladjal
- LIRIS CNRS UMR 5205, Université de Lyon, Université Lyon 1, France
- IPNL CNRS UMR 5822, Université de Lyon, Université Lyon 1, France
| | - M. Beuve
- IPNL CNRS UMR 5822, Université de Lyon, Université Lyon 1, France
| | - P. Giraud
- Service d’Oncologie Radiothérapie, Hôpital Européen Georges Pompidou France
| | - B. Shariat
- LIRIS CNRS UMR 5205, Université de Lyon, Université Lyon 1, France
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15
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Poignant F, Gervais B, Ipatov A, Monini C, Cunha M, Lartaud P, Bacle T, Testa E, Beuve M. Abstract ID: 182 Biophysical modelisation of gold nanoparticles radiosensitizing effects. Phys Med 2017. [DOI: 10.1016/j.ejmp.2017.09.094] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
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16
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Guy J, Espenel S, Vallard A, Méry B, Rancoule C, Wozny A, Simonet S, Beuve M, Alphonse G, Ardail D, Lafrasse CR, Magne N. Targeting Cancer Stem Cells in HNSCC: Synergic Effect of Cetuximab and ABT-199 in Combination with Photon Radiation. Int J Radiat Oncol Biol Phys 2017. [DOI: 10.1016/j.ijrobp.2017.06.2028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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17
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Wozny AS, Aloy MT, Alphonse G, Magné N, Janier M, Tillement O, Lux F, Beuve M, Rodriguez-Lafrasse C. Gadolinium-based nanoparticles as sensitizing agents to carbon ions in head and neck tumor cells. Nanomedicine 2017; 13:2655-2660. [PMID: 28779947 DOI: 10.1016/j.nano.2017.07.015] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/23/2017] [Revised: 06/13/2017] [Accepted: 07/24/2017] [Indexed: 12/31/2022]
Abstract
Hadrontherapy presents the major advantage of improving tumor sterilization while sparing surrounding healthy tissues because of the particular ballistic (Bragg peak) of carbon ions. However, its efficacy is still limited in the most resistant cancers, such as grade III-IV head and neck squamous cell carcinoma (HNSCC), in which the association of carbon ions with gadolinium-based nanoparticles (AGuIX®) could be used as a Trojan horse. We report for the first time the radioenhancing effect of AGuIX® when combined with carbon ion irradiation in human tumor cells. An increase in relative biological effectiveness (1.7) in three HNSCC cell lines (SQ20B, FaDu, and Cal33) was associated with a significant reduction in the radiation dose needed for killing cells. Radiosensitization goes through a higher number of unrepaired DNA double-strand breaks. These results underline the strong potential of AGuIX® in sensitizing aggressive tumors to hadrontherapy and, therefore, improving local control while lowering acute/late toxicity.
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Affiliation(s)
- Anne-Sophie Wozny
- Univ Lyon, Université Lyon 1, UMR CNRS5822/IN2P3, IPNL, PRISME, Radiobiologie Cellulaire et Moléculaire, Faculté de Médecine Lyon-Sud, Oullins cedex, France; Hospices Civils de Lyon, Centre Hospitalier Lyon-Sud, Pierre Bénite, France
| | - Marie-Thérèse Aloy
- Univ Lyon, Université Lyon 1, UMR CNRS5822/IN2P3, IPNL, PRISME, Radiobiologie Cellulaire et Moléculaire, Faculté de Médecine Lyon-Sud, Oullins cedex, France
| | - Gersende Alphonse
- Univ Lyon, Université Lyon 1, UMR CNRS5822/IN2P3, IPNL, PRISME, Radiobiologie Cellulaire et Moléculaire, Faculté de Médecine Lyon-Sud, Oullins cedex, France; Hospices Civils de Lyon, Centre Hospitalier Lyon-Sud, Pierre Bénite, France
| | - Nicolas Magné
- Univ Lyon, Université Lyon 1, UMR CNRS5822/IN2P3, IPNL, PRISME, Radiobiologie Cellulaire et Moléculaire, Faculté de Médecine Lyon-Sud, Oullins cedex, France; Département de Radiothérapie, Institut de Cancérologie de la Loire Lucien Neuwirth, St Priest en Jarez, France
| | - Marc Janier
- Univ Lyon, Université Lyon1, CNRS, LAGEP UMR 5007, IMTHERNAT, Hôpital Edouard Herriot, Lyon, France
| | - Olivier Tillement
- Univ Lyon, Université Lyon 1, Institut Lumière Matière, UMR 5306 CNRS, Villeurbanne cedex, France
| | - François Lux
- Univ Lyon, Université Lyon 1, Institut Lumière Matière, UMR 5306 CNRS, Villeurbanne cedex, France
| | - Michael Beuve
- Univ Lyon, Université Lyon 1, UMR CNRS5822/IN2P3, IPNL, PRISME, PHABIO, Villeurbanne, France
| | - Claire Rodriguez-Lafrasse
- Univ Lyon, Université Lyon 1, UMR CNRS5822/IN2P3, IPNL, PRISME, Radiobiologie Cellulaire et Moléculaire, Faculté de Médecine Lyon-Sud, Oullins cedex, France; Hospices Civils de Lyon, Centre Hospitalier Lyon-Sud, Pierre Bénite, France.
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Rodriguez-Lafrasse C, Saintigny Y, Chevalier F, Bernaudin M, Laurent C, Pouzoulet F, Prezado Y, Megnin-Chanet F, François A, Guipaud O, Beuve M, Balosso J. Translational research in radiobiology in the framework of France HADRON national collaboration. Transl Cancer Res 2017. [DOI: 10.21037/tcr.2017.06.33] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Wozny AS, Alphonse G, Battiston-Montagne P, Simonet S, Poncet D, Testa E, Guy JB, Rancoule C, Magné N, Beuve M, Rodriguez-Lafrasse C. Corrigendum: Influence of Dose Rate on the Cellular Response to Low- and High-LET Radiations. Front Oncol 2017; 6:271. [PMID: 28105406 PMCID: PMC5243835 DOI: 10.3389/fonc.2016.00271] [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] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2016] [Accepted: 12/20/2016] [Indexed: 11/13/2022] Open
Abstract
[This corrects the article on p. 58 in vol. 6, PMID: 27014633.].
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Affiliation(s)
- Anne-Sophie Wozny
- UMR/CNRS 5822, Laboratoire de Radiobiologie Cellulaire et Moléculaire, Univ Lyon, UCBL1, Oullins, France; Centre Hospitalier Lyon-Sud, Hospices-Civils-de-Lyon, Pierre-Bénite, France
| | - Gersende Alphonse
- UMR/CNRS 5822, Laboratoire de Radiobiologie Cellulaire et Moléculaire, Univ Lyon, UCBL1, Oullins, France; Centre Hospitalier Lyon-Sud, Hospices-Civils-de-Lyon, Pierre-Bénite, France
| | | | - Stéphanie Simonet
- UMR/CNRS 5822, Laboratoire de Radiobiologie Cellulaire et Moléculaire, Univ Lyon, UCBL1 , Oullins , France
| | - Delphine Poncet
- UMR/CNRS 5822, Laboratoire de Radiobiologie Cellulaire et Moléculaire, Univ Lyon, UCBL1, Oullins, France; Centre Hospitalier Lyon-Sud, Hospices-Civils-de-Lyon, Pierre-Bénite, France
| | | | - Jean-Baptiste Guy
- UMR/CNRS 5822, Laboratoire de Radiobiologie Cellulaire et Moléculaire, Univ Lyon, UCBL1, Oullins, France; Departement de Radiothérapie, Institut de Cancérologie de la Loire Lucien Neuwirth, St-Priest-en-Jarez, France
| | - Chloé Rancoule
- Departement de Radiothérapie, Institut de Cancérologie de la Loire Lucien Neuwirth , St-Priest-en-Jarez , France
| | - Nicolas Magné
- UMR/CNRS 5822, Laboratoire de Radiobiologie Cellulaire et Moléculaire, Univ Lyon, UCBL1, Oullins, France; Departement de Radiothérapie, Institut de Cancérologie de la Loire Lucien Neuwirth, St-Priest-en-Jarez, France
| | | | - Claire Rodriguez-Lafrasse
- UMR/CNRS 5822, Laboratoire de Radiobiologie Cellulaire et Moléculaire, Univ Lyon, UCBL1, Oullins, France; Centre Hospitalier Lyon-Sud, Hospices-Civils-de-Lyon, Pierre-Bénite, France
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Abstract
Particle therapy is increasingly attractive for the treatment of tumors and the number of facilities offering it is rising worldwide. Due to the well-known enhanced effectiveness of ions, it is of utmost importance to plan treatments with great care to ensure tumor killing and healthy tissues sparing. Hence, the accurate quantification of the relative biological effectiveness (RBE) of ions, used in the calculation of the biological dose, is critical. Nevertheless, the RBE is a complex function of many parameters and its determination requires modeling. The approaches currently used have allowed particle therapy to thrive, but still show some shortcomings. We present herein a short description of a new theoretical framework, NanOx, to calculate cell survival in the context of particle therapy. It gathers principles from existing approaches, while addressing some of their weaknesses. NanOx is a multiscale model that takes the stochastic nature of radiation at nanometric and micrometric scales fully into account, integrating also the chemical aspects of radiation-matter interaction. The latter are included in the model by means of a chemical specific energy, determined from the production of reactive chemical species induced by irradiation. Such a production represents the accumulation of oxidative stress and sublethal damage in the cell, potentially generating non-local lethal events in NanOx. The complementary local lethal events occur in a very localized region and can, alone, lead to cell death. Both these classes of events contribute to cell death. The comparison between experimental data and model predictions for the V79 cell line show a good agreement. In particular, the dependence of the typical shoulders of cell survival curves on linear energy transfer are well described, but also the effectiveness of different ions, including the overkill effect. These results required the adjustment of a number of parameters compatible with the application of the model in a clinical scenario thereby showing the potential of NanOx. Said parameters are discussed in detail in this paper.
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Affiliation(s)
- M Cunha
- Université de Lyon, F-69622, Lyon, France. Université de Lyon 1, Villeurbanne, France. CNRS/IN2P3, Institut de Physique Nucléaire de Lyon, France
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Guy J, Méry B, Rancoule C, Vallard A, Espenel S, Wozny A, Simonet S, Bernard D, Ardail D, Beuve M, Alphonse G, Rodriguez-Lafrasse C, Magné N. HER Family Blockade in Head and Neck Squamous Cell Carcinoma: Couple Therapy Efficacy of Cetuximab and Pertuzumab Combined With Photon Irradiation. Int J Radiat Oncol Biol Phys 2016. [DOI: 10.1016/j.ijrobp.2016.06.2074] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Wozny AS, Alphonse G, Battiston-Montagne P, Simonet S, Poncet D, Testa E, Guy JB, Rancoule C, Magné N, Beuve M, Rodriguez-Lafrasse C. Influence of Dose Rate on the Cellular Response to Low- and High-LET Radiations. Front Oncol 2016; 6:58. [PMID: 27014633 PMCID: PMC4790194 DOI: 10.3389/fonc.2016.00058] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [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: 01/04/2016] [Accepted: 02/28/2016] [Indexed: 11/13/2022] Open
Abstract
Nowadays, head and neck squamous cell carcinoma (HNSCC) treatment failure is mostly explained by locoregional progression or intrinsic radioresistance. Radiotherapy (RT) has recently evolved with the emergence of heavy ion radiations or new fractionation schemes of photon therapy, which modify the dose rate of treatment delivery. The aim of the present study was then to evaluate the in vitro influence of a dose rate variation during conventional RT or carbon ion hadrontherapy treatment in order to improve the therapeutic care of patient. In this regard, two HNSCC cell lines were irradiated with photons or 72 MeV/n carbon ions at a dose rate of 0.5, 2, or 10 Gy/min. For both radiosensitive and radioresistant cells, the change in dose rate significantly affected cell survival in response to photon exposure. This variation of radiosensitivity was associated with the number of initial and residual DNA double-strand breaks (DSBs). By contrast, the dose rate change did not affect neither cell survival nor the residual DNA DSBs after carbon ion irradiation. As a result, the relative biological efficiency at 10% survival increased when the dose rate decreased. In conclusion, in the RT treatment of HNSCC, it is advised to remain very careful when modifying the classical schemes toward altered fractionation. At the opposite, as the dose rate does not seem to have any effects after carbon ion exposure, there is less need to adapt hadrontherapy treatment planning during active system irradiation.
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Affiliation(s)
- Anne-Sophie Wozny
- UMR/CNRS 5822, Laboratoire de Radiobiologie Cellulaire et Moléculaire, Université Claude Bernard Lyon 1, Oullins, France; Centre Hospitalier Lyon-Sud, Hospices-Civils-de-Lyon, Pierre-Bénite, France
| | - Gersende Alphonse
- UMR/CNRS 5822, Laboratoire de Radiobiologie Cellulaire et Moléculaire, Université Claude Bernard Lyon 1, Oullins, France; Centre Hospitalier Lyon-Sud, Hospices-Civils-de-Lyon, Pierre-Bénite, France
| | - Priscillia Battiston-Montagne
- UMR/CNRS 5822, Laboratoire de Radiobiologie Cellulaire et Moléculaire, Université Claude Bernard Lyon 1 , Oullins , France
| | - Stéphanie Simonet
- UMR/CNRS 5822, Laboratoire de Radiobiologie Cellulaire et Moléculaire, Université Claude Bernard Lyon 1 , Oullins , France
| | - Delphine Poncet
- UMR/CNRS 5822, Laboratoire de Radiobiologie Cellulaire et Moléculaire, Université Claude Bernard Lyon 1, Oullins, France; Centre Hospitalier Lyon-Sud, Hospices-Civils-de-Lyon, Pierre-Bénite, France
| | | | - Jean-Baptiste Guy
- UMR/CNRS 5822, Laboratoire de Radiobiologie Cellulaire et Moléculaire, Université Claude Bernard Lyon 1, Oullins, France; Département de Radiothérapie, Institut de Cancérologie de la Loire Lucien Neuwirth, St-Priest-en-Jarez, France
| | - Chloé Rancoule
- Département de Radiothérapie, Institut de Cancérologie de la Loire Lucien Neuwirth , St-Priest-en-Jarez , France
| | - Nicolas Magné
- UMR/CNRS 5822, Laboratoire de Radiobiologie Cellulaire et Moléculaire, Université Claude Bernard Lyon 1, Oullins, France; Département de Radiothérapie, Institut de Cancérologie de la Loire Lucien Neuwirth, St-Priest-en-Jarez, France
| | | | - Claire Rodriguez-Lafrasse
- UMR/CNRS 5822, Laboratoire de Radiobiologie Cellulaire et Moléculaire, Université Claude Bernard Lyon 1, Oullins, France; Centre Hospitalier Lyon-Sud, Hospices-Civils-de-Lyon, Pierre-Bénite, France
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Cunha M, Monini C, Testa E, Beuve M. NanoxTM: A new multiscale theoretical framework to predict cell survival in the context of particle therapy. Radiother Oncol 2016. [DOI: 10.1016/s0167-8140(16)30059-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Wozny AS, Lauret A, Saintigny Y, Battiston-Montagne P, Beuve M, Alphonse G, Rodriguez-Lafrasse C. HIF-1α plays a key role in the response of HNSCC cancer stem cells to photon and carbon ion exposures. Radiother Oncol 2016. [DOI: 10.1016/s0167-8140(16)30237-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Manescu P, Ladjal H, Azencot J, Beuve M, Shariat B. Motion compensation for PET image reconstruction using deformable tetrahedral meshes. Phys Med Biol 2015; 60:9269-93. [DOI: 10.1088/0031-9155/60/24/9269] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Chaikh A, Cunha M, Testa E, Beuve M, Balosso J. Simulation Monte-Carlo pour évaluer l’impact de volume d’un nanodosimètre sur la dose mesurée en radiothérapie. Cancer Radiother 2015. [DOI: 10.1016/j.canrad.2015.07.144] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Abstract
The isometric virus Grapevine redglobe virus (GRGV), was first described on grapevine cv. Red Globe in southern Italy in 2000 (3) and later in Greece and California. GRGV belongs to the genus Maculavirus in the family Tymoviridae. These viruses are thought to be disseminated through propagation and grafting, as no vectors or seed transmission are known to date. A partial sequence (2,006 nucleotides [nt]) encompassing the 3' end of the replicase, the coat protein, and P17 genes, was obtained in 2003 (1). GRGV infections are apparently symptomless (2). In 2014, GRGV was identified by Illumina sequencing of total RNAs extracted from a Vitis vinifera cv. Cabernet franc (CF) vine grafted onto Gravesac in a vineyard of the Bordeaux region in France. This Cabernet franc plant displayed fanleaf-like degeneration symptoms associated with Tomato black ring virus (TBRV) infection. It had been collected in 2010 and maintained since in a greenhouse. The partial contigs assembled from the Illumina reads (552 and 430 nt, both in the putative replicase gene, KM491303 and KM491304) showed 85.9 and 86.3% nt identity with the partial sequence of a GRGV Italian isolate (AF521577), respectively. Total RNA extracts from leaves of 18 plants of cv. Cabernet franc from the same plot, collected in 2014, were analyzed by RT-PCR using specific primers RG-CF-F1 (5'-GAATTCGCTGTCGGCCACTC-3') and RG-CF-R1 (5'-AGTGAGAGGAGAGATTCCATC-3') designed on the basis of the alignment of the partial sequences of GRGV-CF and the Italian isolate (AF521577). Fifteen (83%) of the plants gave strong positive amplification for GRGV. Given the mixed viral infection status of these vines, it was not possible to associate a specific symptomatology with the presence of GRGV. Two RT-PCR amplicons were directly sequenced and showed 91.5 and 91.7% identities, respectively, with the reference GRGV-CF sequence. To our knowledge, this is the first report of GRGV in France. Further studies will be necessary to determine the prevalence of GRGV in the French vineyards and varieties, including rootstocks, and its possible threat to the grapevine industry. Studies are also needed to assess the pathogenicity of GRGV. Similarly to its close relative, Grapevine fleck virus, does it induce latent or semi-latent infections in Vitis vinifera and rootstock hybrids, influencing vigor, rooting ability, and graft compatibility? References: (1) N. Abou Ghanem-Sabanadzovic et al. Virus Genes 27:11, 2003. (2) G. P. Martelli et al. Arch. Virol. 147:1847, 2002. (3) S. Sabanadzovic et al. Arch. Virol. 145:553, 2000.
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Affiliation(s)
- M Beuve
- Institut National de la Recherche Agronomique, Université de Strasbourg, UMR 1131 santé de la Vigne et Qualité du Vin, 68021 Colmar Cedex, France
| | - T Candresse
- UMR 1332 Biologie du Fruit et Pathologie, Institut National de la Recherche Agronomique, Université de Bordeaux, 33882 Villenave d'Ornon Cedex, France
| | - M Tannières
- Institut National de la Recherche Agronomique, Université de Strasbourg, UMR 1131 santé de la Vigne et Qualité du Vin, 68021 Colmar Cedex, France
| | - O Lemaire
- Institut National de la Recherche Agronomique, Université de Strasbourg, UMR 1131 santé de la Vigne et Qualité du Vin, 68021 Colmar Cedex, France
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Ferrandon S, Magné N, Battiston-Montagne P, Hau-Desbat NH, Diaz O, Beuve M, Constanzo J, Chargari C, Poncet D, Chautard E, Ardail D, Alphonse G, Rodriguez-Lafrasse C. Cellular and molecular portrait of eleven human glioblastoma cell lines under photon and carbon ion irradiation. Cancer Lett 2015; 360:10-6. [PMID: 25657111 DOI: 10.1016/j.canlet.2015.01.025] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [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: 12/11/2014] [Revised: 01/19/2015] [Accepted: 01/20/2015] [Indexed: 10/25/2022]
Abstract
This study aimed to examine the cellular and molecular long-term responses of glioblastomas to radiotherapy and hadrontherapy in order to better understand the biological effects of carbon beams in cancer treatment. Eleven human glioblastoma cell lines, displaying gradual radiosensitivity, were irradiated with photons or carbon ions. Independently of p53 or O(6)-methylguanine-DNA methyltransferase(1) status, all cell lines responded to irradiation by a G2/M phase arrest followed by the appearance of mitotic catastrophe, which was concluded by a ceramide-dependent-apoptotic cell death. Statistical analysis demonstrated that: (i) the SF2(2) and the D10(3) values for photon are correlated with that obtained in response to carbon ions; (ii) regardless of the p53, MGMT status, and radiosensitivity, the release of ceramide is associated with the induction of late apoptosis; and (iii) the appearance of polyploid cells after photon irradiation could predict the Relative Biological Efficiency(4) to carbon ions. This large collection of data should increase our knowledge in glioblastoma radiobiology in order to better understand, and to later individualize, appropriate radiotherapy treatment for patients who are good candidates.
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Affiliation(s)
- S Ferrandon
- Laboratoire de Radiobiologie Cellulaire et Moléculaire, EMR3738, Faculté Médecine Lyon-Sud, Université de Lyon, Université Lyon1, 69921 Oullins, France
| | - N Magné
- Laboratoire de Radiobiologie Cellulaire et Moléculaire, EMR3738, Faculté Médecine Lyon-Sud, Université de Lyon, Université Lyon1, 69921 Oullins, France; Départment de Radiothérapie, Institut de Cancérologie Lucien Neuwirth, 42271 St Priest-en-Jarez, France
| | - P Battiston-Montagne
- Laboratoire de Radiobiologie Cellulaire et Moléculaire, EMR3738, Faculté Médecine Lyon-Sud, Université de Lyon, Université Lyon1, 69921 Oullins, France
| | - N-H Hau-Desbat
- Laboratoire de Radiobiologie Cellulaire et Moléculaire, EMR3738, Faculté Médecine Lyon-Sud, Université de Lyon, Université Lyon1, 69921 Oullins, France
| | - O Diaz
- Laboratoire de Radiobiologie Cellulaire et Moléculaire, EMR3738, Faculté Médecine Lyon-Sud, Université de Lyon, Université Lyon1, 69921 Oullins, France
| | - M Beuve
- IPNL-LIRIS-CNRS-IN2P3, 69622 Villeurbanne, France
| | - J Constanzo
- IPNL-LIRIS-CNRS-IN2P3, 69622 Villeurbanne, France
| | - C Chargari
- Service de Radiothérapie, Hôpital du Val de Grâce, 75230 Paris, France
| | - D Poncet
- Laboratoire de Radiobiologie Cellulaire et Moléculaire, EMR3738, Faculté Médecine Lyon-Sud, Université de Lyon, Université Lyon1, 69921 Oullins, France; Hospices Civils de Lyon, Centre Hospitalier Lyon-Sud, 69495 Pierre-Bénite, France
| | - E Chautard
- Centre Jean Perrin, Laboratoire de Radio-Oncologie Expérimentale, Clermont Université, EA7283 CREaT, Université d'Auvergne, 63011 Clermont-Ferrand, France
| | - D Ardail
- Laboratoire de Radiobiologie Cellulaire et Moléculaire, EMR3738, Faculté Médecine Lyon-Sud, Université de Lyon, Université Lyon1, 69921 Oullins, France; Hospices Civils de Lyon, Centre Hospitalier Lyon-Sud, 69495 Pierre-Bénite, France
| | - G Alphonse
- Laboratoire de Radiobiologie Cellulaire et Moléculaire, EMR3738, Faculté Médecine Lyon-Sud, Université de Lyon, Université Lyon1, 69921 Oullins, France; Hospices Civils de Lyon, Centre Hospitalier Lyon-Sud, 69495 Pierre-Bénite, France
| | - C Rodriguez-Lafrasse
- Laboratoire de Radiobiologie Cellulaire et Moléculaire, EMR3738, Faculté Médecine Lyon-Sud, Université de Lyon, Université Lyon1, 69921 Oullins, France; Hospices Civils de Lyon, Centre Hospitalier Lyon-Sud, 69495 Pierre-Bénite, France.
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Abstract
Grapevine Pinot gris virus (GPGV), belonging to the genus Trichovirus of the family Betaflexiviridae, was first identified by siRNA sequencing in northern Italy in 2012, in the grapevine varieties Pinot gris, Traminer, and Pinot Noir, which exhibited mottling and leaf deformation (1), and in asymptomatic vines, with a lower frequency. Since 2012, this virus has also been reported in South Korea, Slovenia, Greece (3), Czech Republic (2), Slovakia (2), and southern Italy (4). In 2014, GPGV was identified by Illumina sequencing of total RNAs extracted from leaves of the Merlot variety (Vitis vinifera) grafted onto Gravesac rootstock originated from a vineyard in the Bordeaux region of France. This Merlot plant exhibited fanleaf-like degeneration symptoms associated with Tomato black ring virus (TBRV) infection. Cuttings were collected in 2010 and maintained thereafter in a greenhouse. The full-length genome was assembled either de novo or by mapping of the Illumina reads on a reference GPGV genome (GenBank FR877530) using the CLC Genomics workbench software (CLC Bio, Qiagen, USA). The French GPGV isolate "Mer" (7,223 nucleotides, GenBank KM491305) is closely related to other European GPGV sequences; it exhibits 95.4% nucleotide identity with the reference Italian isolate (NC_015782) and 98 to 98.3% identity with Slovak isolates (KF134123 to KF134125). The higher divergence between French and Italian GPGV isolates was mainly due to differences in the 5' extremity of the genome, as already shown with the Slovak GPGV isolates. RNA extracted from phloem scrapings of 19 cv. Merlot vines from the same plot collected in 2014 were analyzed by RT-PCR using the specific primer pair Pg-Mer-F1 (5'-GGAGTTGCCTTCGTTTACGA-3') and Pg-Mer-R1 (5'-GTACTTGATTCGCCTC GCTCA-3'), designed on the basis of alignments of all available GPGV sequences from GenBank. The resulting amplicon of 770 bp corresponded to a fragment of the putative movement protein (MP) gene. Seven (35%) of the tested plants gave a strong positive amplification. Three RT-PCR products were directly sequenced and showed 99.3 to 99.5% identity within the MP gene of the GPGV-Mer isolate. Given the mixed viral infection status of the vines found infected by GPGV, it was not possible to associate a specific symptomatology with the presence of GPGV. Furthermore, similar RT-PCR tests were also performed on RNA extracts prepared from two plants of cv. Carignan that originated from a French grapevine collection, exhibiting fanleaf-like symptoms without any nepovirus detection. These samples similarly gave a strong positive amplification. The sequences obtained from the two Carignan vines showed 98.4 and 97.8% identity with the GPGV-Mer isolate. To our knowledge, this is the first report of GPGV in France. GPGV has been discovered in white and red berry cultivars, suggesting that its prevalence could be important in European vineyards (2). Further large-scale studies will be essential to determine the world prevalence of GPGV and to evaluate its potential effects on yield and on wine quality, as well as to shed light on GPGV epidemiology. Of particular concern is whether, like the other grapevine-infecting Trichovirus, Grapevine berry inner necrosis virus (GPGV) can be transmitted by the eryophid mite Colomerus vitis. References: (1) A. Giampetruzzi et al. Virus Res. 163: 262, 2012. (2) M. Glasa et al. Arch. Virol. 159: 2103, 2014. (3) G. P. Martelli, J. Plant Pathol. 96: S105, 2014. (4) M. Morelli et al. J. Plant Pathol. 96:431, 2014.
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Affiliation(s)
- M Beuve
- Institut National de la Recherche Agronomique, Université de Strasbourg, UMR 1131 santé de la Vigne et Qualité du Vin, 68021 Colmar Cedex, France
| | - T Candresse
- UMR 1332 Biologie du Fruit et Pathologie, INRA, CS 20032, 33882 Villenave d'Ornon Cedex, France and UMR 1332 Biologie du Fruit et Pathologie, Université de Bordeaux, CS 20032, 33882 Villenave d'Ornon Cedex, France
| | - M Tannières
- Institut National de la Recherche Agronomique, Université de Strasbourg, UMR 1131 santé de la Vigne et Qualité du Vin, 68021 Colmar Cedex, France
| | - O Lemaire
- Institut National de la Recherche Agronomique, Université de Strasbourg, UMR 1131 santé de la Vigne et Qualité du Vin, 68021 Colmar Cedex, France
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Chanrion MA, Sauerwein W, Jelen U, Wittig A, Engenhart-Cabillic R, Beuve M. The influence of the local effect model parameters on the prediction of the tumor control probability for prostate cancer. Phys Med Biol 2014; 59:3019-40. [DOI: 10.1088/0031-9155/59/12/3019] [Citation(s) in RCA: 9] [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: 12/20/2022]
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31
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Manescu P, Azencot J, Beuve M, Ladjal H, Shariat B. 128: 4D dose calculations and 4D PET image reconstruction using deformable tetrahedral models of moving organs. Radiother Oncol 2014. [DOI: 10.1016/s0167-8140(15)34149-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Manescu P, Ladjal H, Azencot J, Beuve M, Testa E, Shariat B. Four-dimensional radiotherapeutic dose calculation using biomechanical respiratory motion description. Int J Comput Assist Radiol Surg 2013; 9:449-57. [PMID: 23996090 DOI: 10.1007/s11548-013-0935-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2013] [Accepted: 08/01/2013] [Indexed: 10/26/2022]
Abstract
PURPOSE Organ motion due to patient breathing introduces a technical challenge for dosimetry and lung tumor treatment by hadron therapy. Accurate dose distribution estimation requires patient-specific information on tumor position, size, and shape as well as information regarding the material density and stopping power of the media along the beam path. A new 4D dosimetry method was developed, which can be coupled to any motion estimation method. As an illustration, the new method was implemented and tested with a biomechanical model and clinical data. METHODS First, an anatomical model of the lung and tumor was synthesized with deformable tetrahedral grids using computed tomography (CT) images. The CT attenuation values were estimated at the grid vertices. Respiratory motion was simulated biomechanically based on nonlinear finite element analysis. Contrary to classical image-based methods where motion is described using deformable image registration algorithms, the dose distribution was accumulated over tetrahedral meshes that are deformed using biomechanical modeling based on finite element analysis. RESULTS The new method preserves the mass of the objects during simulation with an error between 1.6 and 3.6%. The new method was compared to an existing dose calculation method demonstrating significant differences between the two approaches and overall superior performance using the new method. CONCLUSION A unified model of 4D radiotherapy respiratory effects was developed where biomechanical simulations are coupled with dose calculations. Promising results demonstrate that this approach has significant potential for the treatment for moving tumors.
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Affiliation(s)
- Petru Manescu
- Laboratoire d'InfoRmatique en Image et Systèmes d'information LIRIS; CNRS UMR 5205, Université Claude Bernard Lyon 1, 69622 , Villeurbanne, France,
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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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Ferrandon S, Saultier P, Carras J, Battiston-Montagne P, Alphonse G, Beuve M, Malleval C, Honnorat J, Slatter T, Hung N, Royds J, Rodriguez-Lafrasse C, Poncet D. Telomere profiling: toward glioblastoma personalized medicine. Mol Neurobiol 2012; 47:64-76. [PMID: 23065374 DOI: 10.1007/s12035-012-8363-9] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2012] [Accepted: 10/01/2012] [Indexed: 02/03/2023]
Abstract
Despite a standard of care combining surgery, radiotherapy (RT), and temozolomide chemotherapy, the average overall survival (OS) of glioblastoma patients is only 15 months, and even far lower when the patient cannot benefit from this combination. Therefore, there is a strong need for new treatments, such as new irradiation techniques. Against this background, carbon ion hadrontherapy, a new kind of irradiation, leads to a greater biological response of the tumor, while minimizing adverse effects on healthy tissues in comparison with RT. As carbon ion hadrontherapy is restricted to RT-resistant patients, photon irradiation resistance biomarkers are needed. Long telomeres and high telomerase activity have been widely associated with photon radioresistance in other cancers. Moreover, telomere protection, telomere function, and telomere length (TL) also depend on the shelterin protein complex (TRF1, TRF2, TPP1, POT1, TIN2, and hRAP1). We thus decided to evaluate an enlarged telomeric status (TL, telomerase catalytic subunit, and the shelterin component expression level) as a potential radioresistance biomarker in vitro using cellular models and ex vivo using patient tumor biopsies. In addition, nothing was known about the role of telomeres in carbon ion response. We thus evaluated telomeric status after both types of irradiation. We report here a significant correlation between TL and the basal POT1 expression level and photon radioresistance, in vitro, and a significant increase in the OS of patients with long telomeres or a high POT1 level, in vivo. POT1 expression was predictive of patient response irrespective of the TL. Strikingly, these correlations were lost, in vitro, when considering carbon irradiation. We thus propose (1) a model of the implications of telomeric damage in the cell response to both types of irradiation and (2) assessment of the POT1 expression level and TL using patient tumor biopsies to identify radioresistant patients who could benefit from carbon hadrontherapy.
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Affiliation(s)
- Sylvain Ferrandon
- EMR3738, Cellular and Molecular Radiobiology Laboratory, Medicine Faculty, Lyon 1 University, 69921, Oullins Cedex 12, France
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Le Maguet J, Beuve M, Herrbach E, Lemaire O. Transmission of six ampeloviruses and two vitiviruses to grapevine by Phenacoccus aceris. Phytopathology 2012; 102:717-723. [PMID: 22439861 DOI: 10.1094/phyto-10-11-0289] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Grapevine leafroll disease is caused by grapevine leafroll-associated viruses (GLRaVs). These viruses are common in vineyards worldwide and often associated with vitiviruses that are involved in the rugose wood complex of grapevine. Ten mealybug species are known as vectors of one or several of these grapevine viruses, including the apple mealybug Phenacoccus aceris which is widespread in Holarctic regions and able to transmit Grapevine leafroll-associated virus-1 and -3 (GLRaV-1 and -3). Our aim was to characterize the transmission features of leafroll viruses by Phenacoccus aceris in order to better understand the contribution of this mealybug to leafroll epidemics. Results showed that Phenacoccus aceris is able to transmit GLRaV-1, -3, -4, -5, -6, and -9 to grapevine but not GLRaV-7. This is the first report of GLRaV-6 transmission by a mealybug. Also, for the first time it was shown that Phenacoccus aceris could vector vitiviruses Grapevine virus A (GVA) and Grapevine virus B (GVB). First instar nymphs were the most efficient stage in transmitting GLRaV-1, -3, and GVA. This research sheds light on the transmission biology of grapevine viruses by Phenacoccus aceris and represents a step forward to leafroll disease management.
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Affiliation(s)
- J Le Maguet
- Interprofessionnel du Vin de Champagne, Epernay, France.
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Portela Sotelo MA, Desserée É, Moreau JM, Shariat B, Beuve M. 3-D model-based multiple-object video tracking for treatment room supervision. IEEE Trans Biomed Eng 2011; 59:562-70. [PMID: 22127989 DOI: 10.1109/tbme.2011.2176940] [Citation(s) in RCA: 5] [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] [Indexed: 11/09/2022]
Abstract
We present a method to monitor a patient and the equipment in a radiotherapy treatment room, by exploiting the information in the treatment plan, enriched with other elements such as visual, geometric, and "semantic" information. Using all these information items, and a generic model, a virtual environment of the scene is created, with maximum precision. The images resulting from video sequences with several cameras are also used to confront the filmed information on the scene and its numerical representation. The method is based on the features of the scene elements, and on a fuzzy formalism. The feasibility of the method is being quantitatively evaluated in the absence of treatment, to be further exploited in a module for external control by video in real conditions.
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Bencharki B, Boissinot S, Revollon S, Ziegler-Graff V, Erdinger M, Wiss L, Dinant S, Renard D, Beuve M, Lemaitre-Guillier C, Brault V. Phloem protein partners of Cucurbit aphid borne yellows virus: possible involvement of phloem proteins in virus transmission by aphids. Mol Plant Microbe Interact 2010; 23:799-810. [PMID: 20459319 DOI: 10.1094/mpmi-23-6-0799] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
Poleroviruses are phytoviruses strictly transmitted by phloem-feeding aphids in a circulative and nonpropagative mode. During ingestion, aphids sample virions in sieve tubes along with sap. Therefore, any sap protein bound to virions will be acquired by the insects and could potentially be involved in the transmission process. By developing in vitro virus-overlay assays on sap proteins collected from cucumber, we observed that approximately 20 proteins were able to bind to purified particles of Cucurbit aphid borne yellows virus (CABYV). Among them, eight proteins were identified by mass spectrometry. The role of two candidates belonging to the PP2-like family (predominant lectins found in cucurbit sap) in aphid transmission was further pursued by using purified orthologous PP2 proteins from Arabidopsis. Addition of these proteins to the virus suspension in the aphid artificial diet greatly increased virus transmission rate. This shift was correlated with an increase in the number of viral genomes in insect cells and with an increase of virion stability in vitro. Surprisingly, increase of the virus transmission rate was also monitored after addition of unrelated proteins in the aphid diet, suggesting that any soluble protein at sufficiently high concentration in the diet and acquired together with virions could stimulate virus transmission.
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Affiliation(s)
- B Bencharki
- INRA Université de Strasbourg, UMR SVQV, 28 rue de Herrlisheim BP 20507, 68021 Colmar, France
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Sylvain F, Saultier P, Battiston-Montagne P, Malesys C, Beuve M, Colliaux A, Rodriguez-Lafrasse C, Poncet D. 95: Détermination du statut télomérique comme marqueur prédictif pour l’orientation des patients vers l’hadronthérapie. Bull Cancer 2010. [DOI: 10.1016/s0007-4551(15)31188-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Beuve M, Alphonse G, Maalouf M, Colliaux A, Battiston-Montagne P, Jalade P, Balanzat E, Demeyer A, Bajard M, Rodriguez-Lafrasse C. Radiobiologic parameters and local effect model predictions for head-and-neck squamous cell carcinomas exposed to high linear energy transfer ions. Int J Radiat Oncol Biol Phys 2008; 71:635-42. [PMID: 18234427 DOI: 10.1016/j.ijrobp.2007.10.050] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2007] [Revised: 10/22/2007] [Accepted: 10/24/2007] [Indexed: 10/22/2022]
Abstract
PURPOSE To establish the radiobiologic parameters of head-and-neck squamous cell carcinomas (HNSCC) in response to ion irradiation with various linear energy transfer (LET) values and to evaluate the relevance of the local effect model (LEM) in HNSCC. METHODS AND MATERIALS Cell survival curves were established in radiosensitive SCC61 and radioresistant SQ20B cell lines irradiated with [33.6 and 184 keV/n] carbon, [302 keV/n] argon, and X-rays. The results of ion experiments were confronted to LEM predictions. RESULTS The relative biologic efficiency ranged from 1.5 to 4.2 for SCC61 and 2.1 to 2.8 for SQ20B cells. Fixing an arbitrary D(0) parameter, which characterized survival to X-ray at high doses (>10 Gy), gave unsatisfying LEM predictions for both cell lines. For D(0) = 10 Gy, the error on survival fraction at 2 Gy amounted to a factor of 10 for [184 keV/n] carbon in SCC61 cells. We showed that the slope (s(max)) of the survival curve at high doses was much more reliable than D(0). Fitting s(max) to 2.5 Gy(-1) gave better predictions for both cell lines. Nevertheless, LEM could not predict the responses to fast and slow ions with the same accuracy. CONCLUSIONS The LEM could predict the main trends of these experimental data with correct orders of magnitude while s(max) was optimized. Thus the efficiency of carbon ions cannot be simply extracted from the clinical response of a patient to X-rays. LEM should help to optimize planning for hadrontherapy if a set of experimental data is available for high-LET radiations in various types of tumors.
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Affiliation(s)
- Michael Beuve
- IPNL, LIRIS, IN2P3, Université Lyon 1, Villeurbanne, France.
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Sarrut D, Delhay B, Villard PF, Boldea V, Beuve M, Clarysse P. A comparison framework for breathing motion estimation methods from 4-D imaging. IEEE Trans Med Imaging 2007; 26:1636-1648. [PMID: 18092734 DOI: 10.1109/tmi.2007.901006] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Motion estimation is an important issue in radiation therapy of moving organs. In particular, motion estimates from 4-D imaging can be used to compute the distribution of an absorbed dose during the therapeutic irradiation. We propose a strategy and criteria incorporating spatiotemporal information to evaluate the accuracy of model-based methods capturing breathing motion from 4-D CT images. This evaluation relies on the identification and tracking of landmarks on the 4-D CT images by medical experts. Three different experts selected more than 500 landmarks within 4-D CT images of lungs for three patients. Landmark tracking was performed at four instants of the expiration phase. Two metrics are proposed to evaluate the tracking performance of motion-estimation models. The first metric cumulates over the four instants the errors on landmark location. The second metric integrates the error over a time interval according to an a priori breathing model for the landmark spatiotemporal trajectory. This latter metric better takes into account the dynamics of the motion. A second aim of this paper is to estimate the impact of considering several phases of the respiratory cycle as compared to using only the extreme phases (end-inspiration and end-expiration). The accuracy of three motion estimation models (two image registration-based methods and a biomechanical method) is compared through the proposed metrics and statistical tools. This paper points out the interest of taking into account more frames for reliably tracking the respiratory motion.
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Kozlowska-Makulska A, Szyndel MS, Syller J, Bouzoubaa S, Beuve M, Lemaire O, Herrbach E. First Report on the Natural Occurrence of Beet chlorosis virus in Poland. Plant Dis 2007; 91:326. [PMID: 30780581 DOI: 10.1094/pdis-91-3-0326c] [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: 06/09/2023]
Abstract
Yellowing symptoms on sugar beet (Beta vulgaris L.) are caused by several viruses, especially those belonging to the genus Polerovirus of the family Luteoviridae, including Beet mild yellowing virus (BMYV) and Beet western yellows virus (BWYV), and recently, a new species, Beet chlorosis virus (BChV), was reported (2). To identify Polerovirus species occurring in beet crops in Poland and determine their molecular variability, field surveys were performed in the summer and autumn of 2005. Leaves from symptomatic beet plants were collected at 26 localities in the main commercial sugar-beet-growing areas in Poland that included the Bydgoszcz, Kutno, Lublin, Poznań, Olsztyn, and Warszawa regions. Enzyme-linked immunosorbent assay (ELISA) tests (Loewe Biochemica GmbH, Sauerlach, Germany) detected poleroviruses in 23 of 160 samples (approximately 20 samples from each field). Multiplex reverse-transcription polymerase chain reaction (RT-PCR) (1) (GE Healthcare S.A.-Amersham Velizy, France) confirmed the presence of poleroviruses in 13 of 23 samples. Nine of twenty sugar beet plants gave positive reactions with BChV-specific primers and three with primers specific to the BMYV P0 protein. Two isolates reacted only with primer sets CP+/CP, sequences that are highly conserved for all beet poleroviruses. Leaf samples collected from three plants infected with BChV were used as inoculum sources for Myzus persicae in transmission tests to suitable indicator plants including sugar beet, red beet (Beta vulgaris L. var. conditiva Alef.), and Chenopodium capitatum. All C. capitatum and beet plants were successfully infected with BChV after a 48-h acquisition access period and an inoculation access period of 3 days. Transmission was confirmed by the presence of characteristic symptoms and by ELISA. Amino acid sequences obtained from each of four purified (QIAquick PCR Purification kit, Qiagen S.A., Courtaboeuf, France) RT-PCR products (550 and 750 bp for CP and P0, respectively) were 100% identical with the CP region (GenBank Accession No. AAF89621) and 98% identical with the P0 region (GenBank Accession No. NP114360) of the French isolate of BChV. To our knowledge, this is the first report of BChV in Poland. References: (1) S. Hauser et al. J. Virol. Methods 89:11, 2000. (2) M. Stevens et al. Mol. Plant Pathol. 6:1, 2005.
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Affiliation(s)
| | - M S Szyndel
- Department of Plant Pathology, Warsaw Agricultural University, 02-766 Poland
| | - J Syller
- Plant Breeding and Acclimatization Institute, Centre Mlochów, 05-831 Poland
| | - S Bouzoubaa
- Institut de Biologie Moléculaire des Plantes, 67084 Strasbourg, France
| | - M Beuve
- Institut National de la Recherche Agronomique, BP 20507, 68021 Colmar, France
| | - O Lemaire
- Institut National de la Recherche Agronomique, BP 20507, 68021 Colmar, France
| | - E Herrbach
- Institut National de la Recherche Agronomique, BP 20507, 68021 Colmar, France
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Gervais B, Beuve M, Olivera G, Galassi M, Rivarola R. Production of HO2 and O2 by multiple ionization in water radiolysis by swift carbon ions. Chem Phys Lett 2005. [DOI: 10.1016/j.cplett.2005.05.057] [Citation(s) in RCA: 53] [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: 11/25/2022]
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Abstract
In this paper, we describe a general methodology for the realistic reconstruction and animation of anatomic organs. In fact, in the scope of conformal radiotherapy and hadron therapy applications, we want to simulate the motion and the shape alteration of the internal anatomical objects and to input this knowledge to treatment planning. For the reconstruction, particle systems are used: firstly, surface shape of the considered organ is computed from a set of CT scan sections. Next, the volume defined by this surface is filled with particles. The coherency of the object is maintained due to the use of the classical Lennard-Jones inter particles force. This work permits to study the impact of the organs movement on the treatment of prostate and lung cancer. Our particle system has been suitably integrated in a radiation dose evaluation software, developed within an European BIOMED2 project and is currently supported by the French ETOILE project.
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Affiliation(s)
- F Jaillet
- Université Lyon, 1-8 bd Niels Bohr, 69622 Villeurbanne, France.
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Abstract
Two distinct viruses belonging to the Polerovirus genus, in the family Luteoviridae, have been described as being able to induce mild yellowing on sugar beet: Beet mild yellowing virus (BMYV) and more recently, beet chlorosis virus (BChV). We have analysed biological properties and molecular organisation of two strains of BChV, one collected in England and the second from California. The biological data suggested that BChV displayed a narrower host range compared to BMYV and Beet western yellows virus lettuce isolate (BWYV). The complete genomic RNA sequence of the American isolate BChV-California and the European isolate BChV-2a showed a genetic organisation and expression typical of other Polerovirus members including 6 open reading frames (ORFs). Interspecific and intraspecific phylogenetic studies suggested that BChV arose by recombination events between a Polerovirus-like ancestor donating P0 and the replicase complex and either a BMYV or a BWYV progenitor providing the 3' ORFs [3, 4 and 5]. The 5'- and 3'-parts of the BChV genome have evolved differently in the two continents, possibly due to different selection pressures to allow adaptation to the various environments, hosts and vectors. BChV is a distinct species of the Polerovirus genus.
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Affiliation(s)
- S Hauser
- INRA, URVV, Biologie des Interactions Virus Vecteur, Colmar, France
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Hauser S, Weber C, Vetter G, Stevens M, Beuve M, Lemaire O. Improved detection and differentiation of poleroviruses infecting beet or rape by multiplex RT-PCR. J Virol Methods 2000; 89:11-21. [PMID: 10996635 DOI: 10.1016/s0166-0934(00)00203-2] [Citation(s) in RCA: 22] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Three distinct species of virus inducing yellowing of beet, Beet mild yellowing virus (BMYV), Brassica yellows virus (BrYV, synonym BWYV) and Beet chlorosis virus (BChV) have been characterised from the genus Polerovirus. Until recently, no available tools were available to allow accurate and reliable distinction of the three species. Based on previous nucleotide sequence alignments and phylogenetic studies, we show that the use of molecular methods enabled the discrimination of these three beet Polerovirus species, but with differences in efficiency and specificity. Primers CP+ and CP- encompassing ORF-3, which encodes the coat protein, allowed the amplification by RT-PCR of a fragment of 563 bp for all isolates. Molecular methods such as SSCP or RFLP were able to discriminate these fragments by utilizing the differences in sequence. However, SSCP is a highly sensitive technique and was not suitable for the distinction of the Polerovirus species, because all isolates tested displayed a unique pattern. Analysis of the ORF3 RT-PCR products, digested with SmaI, RsaI and AccI restriction enzymes revealed four distinct patterns specific for the three species. However, point mutations can alter the RFLP patterns, making the interpretation of the results difficult. Primers were designed to amplify specifically sequences corresponding to ORF-0 of the three viral species. By using the three new sets of ORF-0 specific primers and CP+/CP- primers in a single multiplex RT-PCR, the detection and discrimination of the three beet Polerovirus species was possible in infected plants. The multiplex RT-PCR method provides a reliable and highly sensitive method to detect and identify viral species and will be of great interest for epidemiological studies of beet poleroviruses.
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Affiliation(s)
- S Hauser
- INRA, Unité de Recherche Vigne et Vin, laboratoire Vection de Virus, 28 rue de Herrlisheim, 68021 Cedex, Colmar, France
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