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López-Riego M, Płódowska M, Lis-Zajęcka M, Jeziorska K, Tetela S, Węgierek-Ciuk A, Sobota D, Braziewicz J, Lundholm L, Lisowska H, Wojcik A. The DNA damage response to radiological imaging: from ROS and γH2AX foci induction to gene expression responses in vivo. RADIATION AND ENVIRONMENTAL BIOPHYSICS 2023:10.1007/s00411-023-01033-4. [PMID: 37335333 DOI: 10.1007/s00411-023-01033-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Accepted: 06/03/2023] [Indexed: 06/21/2023]
Abstract
Candidate ionising radiation exposure biomarkers must be validated in humans exposed in vivo. Blood from patients undergoing positron emission tomography-computed tomography scan (PET-CT) and skeletal scintigraphy (scintigraphy) was drawn before (0 h) and after (2 h) the procedure for correlation analyses of the response of selected biomarkers with radiation dose and other available patient information. FDXR, CDKN1A, BBC3, GADD45A, XPC, and MDM2 expression was determined by qRT-PCR, DNA damage (γH2AX) by flow cytometry, and reactive oxygen species (ROS) levels by flow cytometry using the 2', 7'-dichlorofluorescein diacetate test in peripheral blood mononuclear cells (PBMC). For ROS experiments, 0- and 2-h samples were additionally exposed to UVA to determine whether diagnostic irradiation conditioned the response to further oxidative insult. With some exceptions, radiological imaging induced weak γH2AX foci, ROS and gene expression fold changes, the latter with good coherence across genes within a patient. Diagnostic imaging did not influence oxidative stress in PBMC successively exposed to UVA. Correlation analyses with patient characteristics led to low correlation coefficient values. γH2AX fold change, which correlated positively with gene expression, presented a weak positive correlation with injected activity, indicating a radiation-induced subtle increase in DNA damage and subsequent activation of the DNA damage response pathway. The exposure discrimination potential of these biomarkers in the absence of control samples as frequently demanded in radiological emergencies, was assessed using raw data. These results suggest that the variability of the response in heterogeneous populations might complicate identifying individuals exposed to low radiation doses.
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Affiliation(s)
- Milagrosa López-Riego
- Centre for Radiation Protection Research, Department of Molecular Biosciences, The Wenner-Gren Institute, Stockholm University, Stockholm, Sweden.
| | - Magdalena Płódowska
- Department of Medical Biology, Institute of Biology, Jan Kochanowski University, Kielce, Poland
| | - Milena Lis-Zajęcka
- Department of Medical Biology, Institute of Biology, Jan Kochanowski University, Kielce, Poland
| | - Kamila Jeziorska
- Department of Medical Biology, Institute of Biology, Jan Kochanowski University, Kielce, Poland
| | - Sylwia Tetela
- Department of Medical Biology, Institute of Biology, Jan Kochanowski University, Kielce, Poland
| | - Aneta Węgierek-Ciuk
- Department of Medical Biology, Institute of Biology, Jan Kochanowski University, Kielce, Poland
| | - Daniel Sobota
- Department of Medical Physics, Institute of Biology, Jan Kochanowski University, Kielce, Poland
| | - Janusz Braziewicz
- Department of Medical Physics, Institute of Biology, Jan Kochanowski University, Kielce, Poland
- Department of Nuclear Medicine With Positron Emission Tomography (PET) Unit, Holy Cross Cancer Centre, Kielce, Poland
| | - Lovisa Lundholm
- Centre for Radiation Protection Research, Department of Molecular Biosciences, The Wenner-Gren Institute, Stockholm University, Stockholm, Sweden
| | - Halina Lisowska
- Department of Medical Biology, Institute of Biology, Jan Kochanowski University, Kielce, Poland
| | - Andrzej Wojcik
- Centre for Radiation Protection Research, Department of Molecular Biosciences, The Wenner-Gren Institute, Stockholm University, Stockholm, Sweden
- Department of Medical Biology, Institute of Biology, Jan Kochanowski University, Kielce, Poland
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López JS, Pujol-Canadell M, Puig P, Armengol G, Barquinero JF. Evaluation of γ-H2AX foci distribution among different peripheral blood mononucleated cell subtypes. Int J Radiat Biol 2023; 99:1550-1558. [PMID: 36862979 DOI: 10.1080/09553002.2023.2187480] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2022] [Accepted: 02/19/2023] [Indexed: 03/04/2023]
Abstract
INTRODUCTION The detection of γ-H2AX foci in peripheral blood mononucleated cells (PBMCs) has been incorporated as an early assay for biological dosimetry. However, overdispersion in the γ-H2AX foci distribution is generally reported. In a previous study from our group, it was suggested that overdispersion could be caused by the fact that when evaluating PBMCs, different cell subtypes are analyzed, and that these could differ in their radiosensitivity. This would cause a mixture of different frequencies that would result in the overdispersion observed. OBJECTIVES The objective of this study was to evaluate both the possible differences in the radiosensitivities of the different cell subtypes present in the PBMCs and to evaluate the distribution of γ-H2AX foci in each cell subtype. MATERIALS AND METHODS Peripheral blood samples from three healthy donors were obtained and total PBMCs, and CD3+, CD4+, CD8+, CD19+, and CD56+ cells were separated. Cells were irradiated with 1 and 2 Gy and incubated at 37 °C for 1, 2, 4, and 24 h. Sham-irradiated cells were also analyzed. γ-H2AX foci were detected after immunofluorescence staining and analyzed automatically using a Metafer Scanning System. For each condition, 250 nuclei were considered. RESULTS When the results from each donor were compared, no observable significant differences between donors were observed. When the different cell subtypes were compared, CD8+ cells showed the highest mean of γ-H2AX foci in all post-irradiation time points. The cell type that showed the lowest γ-H2AX foci frequency was CD56+. The frequencies observed in CD4+ and CD19+ cells fluctuated between CD8+ and CD56+ without any clear pattern. For all cell types evaluated, and at all post-irradiation times, overdispersion in γ-H2AX foci distribution was significant. Independent of the cell type evaluated the value of the variance was four times greater than that of the mean. CONCLUSION Although different PBMC subsets studied showed different radiation sensitivity, these differences did not explain the overdispersion observed in the γ-H2AX foci distribution after exposure to IR.
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Affiliation(s)
- Juan S López
- Unitat d'Antropologia Biològica, Departament de Biologia Animal, Biologia Vegetal i Ecologia, Universitat Autònoma de Barcelona, Bellaterra, Catalonia, Spain
| | - Mònica Pujol-Canadell
- Unitat d'Antropologia Biològica, Departament de Biologia Animal, Biologia Vegetal i Ecologia, Universitat Autònoma de Barcelona, Bellaterra, Catalonia, Spain
| | - Pedro Puig
- Departament de Matemàtiques, Universitat Autònoma de Barcelona, Bellaterra, Catalonia, Spain
- Centre de Recerca Matemàtica, Bellaterra, Catalonia, Spain
| | - Gemma Armengol
- Unitat d'Antropologia Biològica, Departament de Biologia Animal, Biologia Vegetal i Ecologia, Universitat Autònoma de Barcelona, Bellaterra, Catalonia, Spain
| | - Joan Francesc Barquinero
- Unitat d'Antropologia Biològica, Departament de Biologia Animal, Biologia Vegetal i Ecologia, Universitat Autònoma de Barcelona, Bellaterra, Catalonia, Spain
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Młynarczyk D, Puig P, Armero C, Gómez-Rubio V, Barquinero JF, Pujol-Canadell M. Radiation dose estimation with time-since-exposure uncertainty using the [Formula: see text]-H2AX biomarker. Sci Rep 2022; 12:19877. [PMID: 36400833 PMCID: PMC9674680 DOI: 10.1038/s41598-022-24331-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2022] [Accepted: 11/14/2022] [Indexed: 11/21/2022] Open
Abstract
To predict the health effects of accidental or therapeutic radiation exposure, one must estimate the radiation dose that person received. A well-known ionising radiation biomarker, phosphorylated [Formula: see text]-H2AX protein, is used to evaluate cell damage and is thus suitable for the dose estimation process. In this paper, we present new Bayesian methods that, in contrast to approaches where estimation is carried out at predetermined post-irradiation times, allow for uncertainty regarding the time since radiation exposure and, as a result, produce more precise results. We also use the Laplace approximation method, which drastically cuts down on the time needed to get results. Real data are used to illustrate the methods, and analyses indicate that the models might be a practical choice for the [Formula: see text]-H2AX biomarker dose estimation process.
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Affiliation(s)
- Dorota Młynarczyk
- Departament de Matemàtiques, Universitat Autònoma de Barcelona, Bellaterra, Spain
| | - Pedro Puig
- Departament de Matemàtiques, Universitat Autònoma de Barcelona, Bellaterra, Spain
- Centre de Recerca Matemàtica, Bellaterra, Spain
| | - Carmen Armero
- Departament d’Estadística i Investigació Operativa, Universitat de València, València, Spain
| | - Virgilio Gómez-Rubio
- Department of Mathematics, School of Industrial Engineering, Universidad de Castilla-La Mancha, Albacete, Spain
| | - Joan F. Barquinero
- Departament de Biologia Animal, Biologia Vegetal i Ecologia, Universitat Autònoma de Barcelona, Bellaterra, Spain
| | - Mònica Pujol-Canadell
- Departament de Biologia Animal, Biologia Vegetal i Ecologia, Universitat Autònoma de Barcelona, Bellaterra, Spain
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Takebayashi K, Echizenya K, Kameya Y, Nakajima D, Nakayama R, Fujishima Y, Goh VST, Abe Y, Kasai K, Anderson DA, Blakely WF, Miura T. Mitotic index maximization with no effect on radiation-induced dicentric chromosome frequency. Int J Radiat Biol 2022; 99:750-759. [PMID: 36318780 DOI: 10.1080/09553002.2023.2142981] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
PURPOSE The dicentric chromosome (Dic) assay, which is the gold standard for biological dose assessment in radiation emergency medicine, requires an analysis of at least 500 lymphocyte metaphases or 100 Dic aberrations. Therefore, peripheral blood culture conditions able to obtain a high frequency of metaphases for efficient dose evaluation should be optimized. However, the type of blood cultures [i.e. whole blood (WB) or isolated peripheral blood mononuclear cell (PBMC)-culture] and blood volume differ between biodosimetry laboratories. The purpose of this study is to investigate the blood volume at which a high mitotic index (MI) is obtained in peripheral WB-culture and isolated PBMC-culture, and to examine the possible effect of blood volume on radiation-induced Dic frequency. MATERIALS AND METHODS Peripheral blood was collected from three healthy donors with their informed consent. The complete and differential blood counts were performed using an automated hematology analyzer. After blood count, peripheral blood was irradiated with 0 or 2 Gy X-ray. Blood was cultured with phytohemagglutinin (180 μg/ml) and demecolcine (0.05 μg/ml) for 48 h. The MI and Dic frequency were analyzed in 5, 10, 15, 20, 25, and 30% WB-cultures and 0.6, 1.2, 1.8, 2.4, 3.0, 3.6, and 4.2 ml WB-equivalent PBMC-cultures. RESULTS In WB-culture, MI showed the highest value (∼22%) in 5-15% WB-culture and then gradually decreased to ∼9% with 30% WB-culture. MI peaked at 36 and 31% in 1.8 and 2.4 ml-WB equivalent volumes for PMBC-cultures, respectively. MI progressively decreased as the amount of PBMCs increased. Although individual differences were observed in the MI values among the three subjects, all the subjects showed the same tendency and higher MI was seen in PBMC than WB-cultures. However, these factors had no significant impact on the yield of Dics. In all culture conditions, the estimated dose calculated based on the Dic frequency was equivalent to the absorbed dose of ex vivo X-ray-irradiated blood. CONCLUSION While MI was affected by the blood culture type and the volume of cultured blood, Dic yield did not differ significantly between these conditions. These results could be used by relevant laboratories to optimize MI in certain circumstances.
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Affiliation(s)
- Kai Takebayashi
- Department of Risk Analysis and Biodosimetry, Institute of Radiation Emergency Medicine, Hirosaki University, Hirosaki, Japan
- Department of Bioscience and Laboratory Medicine, Hirosaki University Graduate School of Health Sciences, Hirosaki, Japan
| | - Keito Echizenya
- Department of Risk Analysis and Biodosimetry, Institute of Radiation Emergency Medicine, Hirosaki University, Hirosaki, Japan
| | - Yuki Kameya
- Department of Risk Analysis and Biodosimetry, Institute of Radiation Emergency Medicine, Hirosaki University, Hirosaki, Japan
| | - Daichi Nakajima
- Department of Risk Analysis and Biodosimetry, Institute of Radiation Emergency Medicine, Hirosaki University, Hirosaki, Japan
| | - Ryo Nakayama
- Department of Risk Analysis and Biodosimetry, Institute of Radiation Emergency Medicine, Hirosaki University, Hirosaki, Japan
- Department of Bioscience and Laboratory Medicine, Hirosaki University Graduate School of Health Sciences, Hirosaki, Japan
| | - Yohei Fujishima
- Department of Risk Analysis and Biodosimetry, Institute of Radiation Emergency Medicine, Hirosaki University, Hirosaki, Japan
| | - Valerie Swee Ting Goh
- Department of Radiobiology, Singapore Nuclear Research and Safety Initiative, National University of Singapore, Singapore
| | - Yu Abe
- Department of Radiation Biology and Protection, Atomic Bomb Disease Institute, Nagasaki University, Nagasaki, Japan
| | - Kosuke Kasai
- Department of Bioscience and Laboratory Medicine, Hirosaki University Graduate School of Health Sciences, Hirosaki, Japan
| | - Donovan A. Anderson
- Department of Risk Analysis and Biodosimetry, Institute of Radiation Emergency Medicine, Hirosaki University, Hirosaki, Japan
| | - William F. Blakely
- Scientific Research Department, Armed Forces Radiobiology Research Institute (AFRRI), Uniformed Services University of the Health Sciences, Bethesda, MD, USA
| | - Tomisato Miura
- Department of Risk Analysis and Biodosimetry, Institute of Radiation Emergency Medicine, Hirosaki University, Hirosaki, Japan
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A Validation Study on Immunophenotypic Differences in T-lymphocyte Chromosomal Radiosensitivity between Newborns and Adults in South Africa. RADIATION 2021. [DOI: 10.3390/radiation2010001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Children have an increased risk of developing radiation-induced secondary malignancies compared to adults, due to their high radiosensitivity and longer life expectancy. In contrast to the epidemiological evidence, there is only a handful of radiobiology studies which investigate the difference in radiosensitivity between children and adults at a cellular level. In this study, the previous results on the potential age dependency in chromosomal radiosensitivity were validated again by means of the cytokinesis-block micronucleus (CBMN) assay in T-lymphocytes isolated from the umbilical cord and adult peripheral blood of a South African population. The isolated cells were irradiated with 60Co γ-rays at doses ranging from 0.5 Gy to 4 Gy. Increased radiosensitivities of 34%, 42%, 29%, 26% and 16% were observed for newborns compared to adults at 0.5, 1, 2, 3 and 4 Gy, respectively. An immunophenotypic evaluation with flow cytometry revealed a significant change in the fraction of naïve (CD45RA+) T-lymphocytes in CD4+ and CD8+ T-lymphocytes with age. Newborns co-expressed an average of 91.05% CD45RA+ (range: 80.80–98.40%) of their CD4+ cells, while this fraction decreased to an average of 39.08% (range: 12.70–58.90%) for adults. Similar observations were made for CD8+ cells. This agrees with previous published results that the observed differences in chromosomal radiosensitivity between newborn and adult T-lymphocytes could potentially be linked to their immunophenotypic profiles.
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Vinnikov V, Belyakov O. Clinical Applications of Biological Dosimetry in Patients Exposed to Low Dose Radiation Due to Radiological, Imaging or Nuclear Medicine Procedures. Semin Nucl Med 2021; 52:114-139. [PMID: 34879905 DOI: 10.1053/j.semnuclmed.2021.11.008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Radiation dosimetric biomarkers have found applications beyond radiation protection area and now are actively introduced into clinical practice. Cytogenetic assays appeared to be a valuable tool for individualized quantifying radiation effects in patients, with high capability for assessing genotoxicity of various medical exposure modalities and providing meaningful radiation dose estimates for prognoses of radiation-related cancer risk. This review summarized current data on the use of biological dosimetry methods in patients undergoing various medical irradiations to low doses. The highlighted topics include basic aspects of biological dosimetry and its limitations in the range of low radiation doses, and main patterns of in vivo induction of radiation biomarkers in clinical exposure scenarios, occurring in X-ray diagnostics, computed tomography, interventional radiology, low dose radiotherapy, and nuclear medicine (internally administered 131I and other radiopharmaceuticals). Additionally, several specific issues, examined by biodosimetry techniques, are analysed, such as contrast media effect, radiation response in pediatric patients, impact of magnetic resonance imaging, evaluation of radioprotectors, detection of patients' abnormal intrinsic radiosensitivity and dose estimation in persons involved in medical radiation incidents. A prognosis of possible directions for further improvements in this area includes the automation of cytogenetic analysis, introduction of molecular biodosimeters and development of multiparametric biodosimetry platforms. A potential approach to the advanced biodosimetry of internal exposure and/or low dose external irradiation is suggested; this can be a multiparametric platform based on the combination of the γ-H2AX foci, dicentric, and translocation assays, each applied in the optimum postexposure time range, with the amalgamation of the dose estimates. The study revealed the necessity of further research, which might clarify medical radiation safety concerns for patients via using stringent biodosimetry methodology.
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Affiliation(s)
- Volodymyr Vinnikov
- International Atomic Energy Agency (IAEA), Vienna, Austria; Grigoriev Institute for Medical Radiology and Oncology (GIMRO), Kharkiv, Ukraine.
| | - Oleg Belyakov
- International Atomic Energy Agency (IAEA), Vienna, Austria
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Penninckx S, Pariset E, Cekanaviciute E, Costes SV. Quantification of radiation-induced DNA double strand break repair foci to evaluate and predict biological responses to ionizing radiation. NAR Cancer 2021; 3:zcab046. [PMID: 35692378 PMCID: PMC8693576 DOI: 10.1093/narcan/zcab046] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2021] [Revised: 11/08/2021] [Accepted: 12/17/2021] [Indexed: 08/08/2023] Open
Abstract
Radiation-induced foci (RIF) are nuclear puncta visualized by immunostaining of proteins that regulate DNA double-strand break (DSB) repair after exposure to ionizing radiation. RIF are a standard metric for measuring DSB formation and repair in clinical, environmental and space radiobiology. The time course and dose dependence of their formation has great potential to predict in vivo responses to ionizing radiation, predisposition to cancer and probability of adverse reactions to radiotherapy. However, increasing complexity of experimentally and therapeutically setups (charged particle, FLASH …) is associated with several confounding factors that must be taken into account when interpreting RIF values. In this review, we discuss the spatiotemporal characteristics of RIF development after irradiation, addressing the common confounding factors, including cell proliferation and foci merging. We also describe the relevant endpoints and mathematical models that enable accurate biological interpretation of RIF formation and resolution. Finally, we discuss the use of RIF as a biomarker for quantification and prediction of in vivo radiation responses, including important caveats relating to the choice of the biological endpoint and the detection method. This review intends to help scientific community design radiobiology experiments using RIF as a key metric and to provide suggestions for their biological interpretation.
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Affiliation(s)
- Sébastien Penninckx
- Biological Systems and Engineering Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
- Medical Physics Department, Jules Bordet Institute, Université Libre de Bruxelles, 1 Rue Héger-Bordet, 1000 Brussels, Belgium
| | - Eloise Pariset
- Space Biosciences Division, NASA Ames Research Center, Moffett Field, CA 94035, USA
- Universities Space Research Association, 615 National Avenue, Mountain View, CA 94043, USA
| | - Egle Cekanaviciute
- Space Biosciences Division, NASA Ames Research Center, Moffett Field, CA 94035, USA
| | - Sylvain V Costes
- To whom correspondence should be addressed. Tel: +1 650 604 5343;
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López JS, Pujol-Canadell M, Puig P, Ribas M, Carrasco P, Armengol G, Barquinero JF. Establishment and validation of surface model for biodosimetry based on γ-H2AX foci detection. Int J Radiat Biol 2021; 98:1-10. [PMID: 34705602 DOI: 10.1080/09553002.2022.1998706] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
INTRODUCTION In the event of a radiation accident detecting γ-H2AX foci is being accepted as fast method for triage and dose assessment. However, due to their disappearance kinetics, published calibrations have been constructed at specific post-irradiation times. OBJECTIVES To develop a surface, or tridimensional, model to estimate doses at times not included in the calibration analysis, and to validate it. MATERIALS AND METHODS Calibration data was obtained irradiating peripheral mononucleated cells from one donor with radiation doses ranging from 0 to 3 Gy, and γ -H2AX foci were detected microscopically using a semi-automatic method, at different post-irradiation times from 0.5 to 24 h. For validation, in addition to the above-mentioned donor, blood samples from another donor were also used. Validation was done within the range of doses and post-irradiation times used in the calibration. RESULTS The calibration data clearly shows that at each analyzed time, the γ-H2AX foci frequency increases as dose increases, and for each dose this frequency decreases with post-irradiation time. The γ-H2AX foci nucleus distribution was clearly overdispersed, for this reason to obtain bidimensional and tridimensional dose-effect relationships no probability distribution was assumed, and linear and non-linear least squares weighted regression was used. In the two validation exercises for most evaluated samples, the 95% confidence limits of the estimated dose were between ±0.5 Gy of the real dose. No major differences were observed between donors. CONCLUSION In case of a suspected overexposure to radiation, the surface model here presented allows a correct dose estimation using γ-H2AX foci as biomarker. The advantage of this surface model is that it can be used at any post-irradiation time, in our model between 0.5 and 24 h.
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Affiliation(s)
- Juan S López
- Unitat d'Antropologia Biològica, Departament de Biologia Animal, Biologia Vegetal i Ecologia, Universitat Autònoma de Barcelona, Bellaterra, Spain
| | - Mònica Pujol-Canadell
- Unitat d'Antropologia Biològica, Departament de Biologia Animal, Biologia Vegetal i Ecologia, Universitat Autònoma de Barcelona, Bellaterra, Spain
| | - Pedro Puig
- Departament de Matemàtiques, Universitat Autònoma de Barcelona, Bellaterra, Spain.,Centre de Recerca Matemàtica, Bellaterra, Spain
| | - Montserrat Ribas
- Servei de Radiofísica i Radioprotecció, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain
| | - Pablo Carrasco
- Servei de Radiofísica i Radioprotecció, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain
| | - Gemma Armengol
- Unitat d'Antropologia Biològica, Departament de Biologia Animal, Biologia Vegetal i Ecologia, Universitat Autònoma de Barcelona, Bellaterra, Spain
| | - Joan F Barquinero
- Unitat d'Antropologia Biològica, Departament de Biologia Animal, Biologia Vegetal i Ecologia, Universitat Autònoma de Barcelona, Bellaterra, Spain
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Gregoire E, Barquinero JF, Gruel G, Benadjaoud M, Martinez JS, Beinke C, Balajee A, Beukes P, Blakely WF, Dominguez I, Duy PN, Gil OM, Güçlü I, Guogyte K, Hadjidekova SP, Hadjidekova V, Hande P, Jang S, Lumniczky K, Meschini R, Milic M, Montoro A, Moquet J, Moreno M, Norton FN, Oestreicher U, Pajic J, Sabatier L, Sommer S, Testa A, Terzoudi G, Valente M, Venkatachalam P, Vral A, Wilkins RC, Wojcik A, Zafiropoulos D, Kulka U. RENEB Inter-Laboratory comparison 2017: limits and pitfalls of ILCs. Int J Radiat Biol 2021; 97:888-905. [PMID: 33970757 DOI: 10.1080/09553002.2021.1928782] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
PURPOSE In case of a mass-casualty radiological event, there would be a need for networking to overcome surge limitations and to quickly obtain homogeneous results (reported aberration frequencies or estimated doses) among biodosimetry laboratories. These results must be consistent within such network. Inter-laboratory comparisons (ILCs) are widely accepted to achieve this homogeneity. At the European level, a great effort has been made to harmonize biological dosimetry laboratories, notably during the MULTIBIODOSE and RENEB projects. In order to continue the harmonization efforts, the RENEB consortium launched this intercomparison which is larger than the RENEB network, as it involves 38 laboratories from 21 countries. In this ILC all steps of the process were monitored, from blood shipment to dose estimation. This exercise also aimed to evaluate the statistical tools used to compare laboratory performance. MATERIALS AND METHODS Blood samples were irradiated at three different doses, 1.8, 0.4 and 0 Gy (samples A, C and B) with 4-MV X-rays at 0.5 Gy min-1, and sent to the participant laboratories. Each laboratory was requested to blindly analyze 500 cells per sample and to report the observed frequency of dicentric chromosomes per metaphase and the corresponding estimated dose. RESULTS This ILC demonstrates that blood samples can be successfully distributed among laboratories worldwide to perform biological dosimetry in case of a mass casualty event. Having achieved a substantial harmonization in multiple areas among the RENEB laboratories issues were identified with the available statistical tools, which are not capable to advantageously exploit the richness of results of a large ILCs. Even though Z- and U-tests are accepted methods for biodosimetry ILCs, setting the number of analyzed metaphases to 500 and establishing a tests' common threshold for all studied doses is inappropriate for evaluating laboratory performance. Another problem highlighted by this ILC is the issue of the dose-effect curve diversity. It clearly appears that, despite the initial advantage of including the scoring specificities of each laboratory, the lack of defined criteria for assessing the robustness of each laboratory's curve is a disadvantage for the 'one curve per laboratory' model. CONCLUSIONS Based on our study, it seems relevant to develop tools better adapted to the collection and processing of results produced by the participant laboratories. We are confident that, after an initial harmonization phase reached by the RENEB laboratories, a new step toward a better optimization of the laboratory networks in biological dosimetry and associated ILC is on the way.
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Affiliation(s)
- Eric Gregoire
- Institut de Radioprotection et de Sûreté Nucléaire, Fontenay-aux-Roses, France
| | | | - Gaetan Gruel
- Institut de Radioprotection et de Sûreté Nucléaire, Fontenay-aux-Roses, France
| | | | - Juan S Martinez
- Institut de Radioprotection et de Sûreté Nucléaire, Fontenay-aux-Roses, France
| | - Christina Beinke
- Bundeswehr Institute of Radiobiology affiliated to the University of Ulm, Munich, Germany
| | - Adayabalam Balajee
- Oak Ridge Institute for Science and Education (ORISE), Oak Ridge, TN, USA
| | | | - William F Blakely
- Armed Forces Radiobiology Research Institute, Uniformed Service University of the Health, Sciences, Bethesda, MD, USA
| | | | - Pham Ngoc Duy
- Center of Biotechnology, Nuclear Research Institute, Dalat city, Vietnam
| | - Octávia Monteiro Gil
- Centro de Ciências e Tecnologias Nucleares, Instituto Superior Técnico, Universidade de Lisboa, Bobadela-LRS, Portugal
| | - Inci Güçlü
- Turkish Atomic Energy Authority, Cekmece Nuclear Research and Training Center, Radiobiology Unit Yarımburgaz, Istanbul, Turkey
| | | | | | | | - Prakash Hande
- Department of Physiology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | | | - Katalin Lumniczky
- National Research Institute for Radiobiology & Radiohygiene, Budapest, Hungary
| | | | | | - Alegria Montoro
- Fundación para la Investigación del Hospital Universitario LA FE de la Comunidad Valenciana, Valencia, Spain
| | - Jayne Moquet
- Public Health England, Centre for Radiation Chemical and Environmental Hazards, Chilton, UK
| | - Mercedes Moreno
- Servicio Madrileño de Salud - Hospital General Universitario Gregorio Marañón, Madrid, Spain
| | - Farrah N Norton
- Radiobiology & Health, Canadian Nuclear Laboratories, Chalk River, Canada
| | - Ursula Oestreicher
- Federal Office for Radiation Protection (BfS), Oberschleissheim, Germany
| | - Jelena Pajic
- Serbian Institute of Occupational Health, Radiation Protection Center, Belgrade, Serbia
| | - Laure Sabatier
- PROCyTOX, Commissariat à l'Energie Atomique et aux Energies Alternatives, Fontenay aux-Roses, France and Université Paris-Saclay, France
| | - Sylwester Sommer
- Institute of Nuclear Chemistry and Technology (INCT), Warsaw, Poland
| | - Antonella Testa
- Agenzia Nazionale per le Nuove Tecnologie, L´Energia e lo Sviluppo Economico Sostenibile, Rome, Italy
| | - Georgia Terzoudi
- National Center for Scientific Research "Demokritos", NCSR"D", Athens, Greece
| | | | | | - Anne Vral
- Radiobiology Research Unit, Gent University, Gent, Belgium
| | | | - Andrzej Wojcik
- Institute Molecular Biosciences, Stockholm University, Stockholm, Sweden
| | | | - Ulrike Kulka
- Federal Office for Radiation Protection (BfS), Oberschleissheim, Germany
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10
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Bensimon Etzol J, Rizzi Y, Gateau T, Guersen J, Pereira B, Gouzou E, Lanaret M, Grand O, Bettencourt C, Bouvet S, Ugolin N, Chevillard S, Boyer L. Biodosimetry in interventional radiology: cutaneous-based immunoassay for anticipating risks of dermatitis. Eur Radiol 2021; 31:7476-7483. [PMID: 33791818 DOI: 10.1007/s00330-021-07885-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2020] [Revised: 02/01/2021] [Accepted: 03/15/2021] [Indexed: 11/24/2022]
Abstract
OBJECTIVES Interventional radiology procedures expose individuals to ionizing radiation. However, existing dosimetry methods do not provide the dose effectively absorbed to the skin, and do not consider the patient's individual response to irradiation. To resolve this lack of dosimetry data, we developed a new external irradiation biodosimetry device, DosiKit, based on the dose-dependent relationship between irradiation dose and radiation-induced H2AX protein phosphorylation in hair follicles. This new biological method was tested in Clermont-Ferrand University Hospital to evaluate the assay performances in the medical field and to estimate DosiKit sensitivity threshold. METHODS DosiKit was tested over 95 patients treated with neuroradiological interventions. For each intervention, lithium fluoride thermoluminescent dosimeters (TLD) were used to measure total dose received at each hair collection point (lateral and occipital skull areas), and conventional indirect dosimetry parameters were collected with a Dosimetry Archiving and Communication System (DACS). RESULTS Quantitative measurement of radiation-induced H2AX protein phosphorylation was performed on 174 hair samples before and after the radiation exposure and 105 samples showed a notable induction of gammaH2AX protein after the radiological procedure. According to a statistical analysis, the threshold sensitivity of the DosiKit immunoassay was estimated around 700 mGy. CONCLUSIONS With this study, we showed that DosiKit provides a useful way for mapping the actually absorbed doses, allowing to identify patients overexposed in interventional radiology procedures, and thus for anticipating risk of developing dermatitis. KEY POINTS • DosiKit is a new external irradiation biodosimetry device, based on the dose-dependent relationship between irradiation dose and radiation-induced H2AX protein phosphorylation in hair follicles. • DosiKit was tested over 95 patients treated with neuroradiological interventions. • The threshold sensitivity of the DosiKit immunoassay was estimated around 700 mGy and DosiKit provides a useful way for mapping the actually absorbed doses.
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Affiliation(s)
| | - Yassine Rizzi
- Service de Radiologie CHU Gabriel-Montpied, Clermont-Ferrand, France
| | - Theo Gateau
- Service de Radiologie CHU Gabriel-Montpied, Clermont-Ferrand, France
| | - Joel Guersen
- Service de Radiologie CHU Gabriel-Montpied, Clermont-Ferrand, France
| | - Bruno Pereira
- Unité de Biostatistiques (DRCI), CHU Gabriel-Montpied, Clermont-Ferrand, France
| | - Emmanuel Gouzou
- Service de Radiologie CHU Gabriel-Montpied, Clermont-Ferrand, France
| | - Mathieu Lanaret
- Service de Radiologie CHU Gabriel-Montpied, Clermont-Ferrand, France
| | - Oceane Grand
- Service de Radiologie CHU Gabriel-Montpied, Clermont-Ferrand, France
| | | | | | - Nicolas Ugolin
- Commissariat à l'Energie Atomique (CEA), Fontenay-aux-Roses, France
| | | | - Louis Boyer
- Service de Radiologie CHU Gabriel-Montpied, Clermont-Ferrand, France.,TGI Institut Pascal UMR 6602 CNRS UCA SIGMA, Clermont-Ferrand, France
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11
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Potential application of γ-H2AX as a biodosimetry tool for radiation triage. MUTATION RESEARCH-REVIEWS IN MUTATION RESEARCH 2020; 787:108350. [PMID: 34083048 DOI: 10.1016/j.mrrev.2020.108350] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2020] [Revised: 11/11/2020] [Accepted: 11/13/2020] [Indexed: 01/01/2023]
Abstract
Radiation triage and biological dosimetry are two initial steps in the medical management of exposed individuals following radiological accidents. Well established biodosimetry methods such as the dicentric (DC) assay, micronucleus (MN) assay, and fluorescence in-situ hybridization (FISH) translocation assay (for residual damage) have been used for this purpose for several decades. Recent advances in scoring methodology and networking among established laboratories have increased triage capacity; however, these methods still have limitations in analysing large sample numbers, particularly because of the ∼ 48 h minimum culture time required prior to analysis. Hence, there is a need for simple, and high throughput markers to identify exposed individuals in case of radiological/nuclear emergencies. In recent years, a few markers were identified, one being phosphorylated histone 2AX (γ-H2AX), which measured a nuclear foci or nuclear staining intensity that was found to be suitable for triage. Measurement of γ-H2AX foci formed at and around the sites of DNA double-strand breaks is a rapid and sensitive biodosimetry method which does not require culturing and is thus promising for the analysis of a large number of samples. In this review, we have summarized the recent developments of γ-H2AX assay in radiation triage and biodosimetry, focusing chiefly on: i) the importance of baseline frequency and reported values among different laboratories, ii) the influence of known and unknown variables on dose estimation, iii) quality assurance such as inter-laboratory comparison between scorers and scoring methods, and iv) current limitations and potential for future development.
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12
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Radiation Biomarkers in Large Scale Human Health Effects Studies. J Pers Med 2020; 10:jpm10040155. [PMID: 33023046 PMCID: PMC7712754 DOI: 10.3390/jpm10040155] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2020] [Revised: 09/28/2020] [Accepted: 10/01/2020] [Indexed: 02/08/2023] Open
Abstract
Following recent developments, the RENEB network (Running the European Network of biological dosimetry and physical retrospective dosimetry) is in an excellent position to carry out large scale molecular epidemiological studies of ionizing radiation effects, with validated expertise in the dicentric, fluorescent in situ hybridization (FISH)-translocation, micronucleus, premature chromosome condensation, gamma-H2AX foci and gene expression assays. Large scale human health effects studies present complex challenges such as the practical aspects of sample logistics, assay costs, effort, effect modifiers and quality control/assurance measures. At Public Health England, the dicentric, automated micronucleus and gamma-H2AX radiation-induced foci assays have been tested for use in a large health effects study. The results of the study and the experience gained in carrying out such a large scale investigation provide valuable information that could help minimise random and systematic errors in biomarker data sets for health surveillance analyses going forward.
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13
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Bucher M, Duchrow L, Endesfelder D, Roessler U, Gomolka M. Comparison of inexperienced operators and experts in γH2A.X and 53BP1 foci assay for high-throughput biodosimetry approaches in a mass casualty incident. Int J Radiat Biol 2020; 96:1263-1273. [PMID: 32673132 DOI: 10.1080/09553002.2020.1793024] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
PURPOSE In case of population exposure by ionizing radiation, a fast and reliable dose assessment of exposed and non-exposed individuals is crucial important. In initial triage, physicians have to take fast decisions whom to treat with adequate medical care. In addition, worries about significant exposure can be taken away from hundreds to thousands non- or low exposed individuals. Studies have shown that the γH2A.X radiation-induced foci assay is a promising test for fast triage decisions. However, in a large-scale scenario most biodosimetry laboratories will quickly reach their capacity limit. The aim of this study was to evaluate the benefit of inexperienced experimenters to speed up the foci assay and manual foci scoring. MATERIALS AND METHODS The participants of two training courses performed the radiation-induced foci assay (γH2A.X) under the guidance of experts and scored foci (γH2A.X and 53BP1) on sham-irradiated and irradiated blood samples (0.05-1.5 Gy). The outcome of laboratory experiments and manual foci scoring by 26 operators with basic experience in laboratory work was statistically analyzed in comparison to the results from experts. RESULTS Inexperienced operators prepared slides with significant dose-effects (0, 0.1 and 1.0 Gy) for semi-automatic microscopic analyses. Manual foci scoring by inexperienced scorer resulted in a dose-effect curve for γH2A.X, 53BP1 and co-localized foci. In addition, inexperienced scorers were able to distinguish low irradiation doses from unirradiated cells. While 53BP1 foci scoring was in accordance to the expert counting, differences between beginners and expert increased for γH2A.X or co-localized foci. CONCLUSIONS In case of a large-scale radiation event, inexperienced staff is useful to support laboratories in slide preparation for semi-automatic foci counting as well as γH2A.X and 53BP1 manual foci scoring for triage-mode biodosimetry. Slides can be clearly classified in the non-, low- or high-exposed category.
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Affiliation(s)
- Martin Bucher
- Department of Effects and Risks of Ionising and Non-Ionising Radiation, Federal Office for Radiation Protection, Neuherberg, Germany
| | - Lukas Duchrow
- Department of Effects and Risks of Ionising and Non-Ionising Radiation, Federal Office for Radiation Protection, Neuherberg, Germany
| | - David Endesfelder
- Department of Effects and Risks of Ionising and Non-Ionising Radiation, Federal Office for Radiation Protection, Neuherberg, Germany
| | - Ute Roessler
- Department of Effects and Risks of Ionising and Non-Ionising Radiation, Federal Office for Radiation Protection, Neuherberg, Germany
| | - Maria Gomolka
- Department of Effects and Risks of Ionising and Non-Ionising Radiation, Federal Office for Radiation Protection, Neuherberg, Germany
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14
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Micronucleus Assay: The State of Art, and Future Directions. Int J Mol Sci 2020; 21:ijms21041534. [PMID: 32102335 PMCID: PMC7073234 DOI: 10.3390/ijms21041534] [Citation(s) in RCA: 115] [Impact Index Per Article: 28.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2020] [Revised: 02/13/2020] [Accepted: 02/14/2020] [Indexed: 12/16/2022] Open
Abstract
During almost 40 years of use, the micronucleus assay (MN) has become one of the most popular methods to assess genotoxicity of different chemical and physical factors, including ionizing radiation-induced DNA damage. In this minireview, we focus on the position of MN among the other genotoxicity tests, its usefulness in different applications and visibility by international organizations, such as International Atomic Energy Agency, Organization for Economic Co-operation and Development and International Organization for Standardization. In addition, the mechanism of micronuclei formation is discussed. Finally, foreseen directions of the MN development are pointed, such as automation, buccal cells MN and chromothripsis phenomenon.
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15
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Dainiak N, Albanese J, Kaushik M, Balajee AS, Romanyukha A, Sharp TJ, Blakely WF. CONCEPTS OF OPERATIONS FOR A US DOSIMETRY AND BIODOSIMETRY NETWORK. RADIATION PROTECTION DOSIMETRY 2019; 186:130-138. [PMID: 30726970 DOI: 10.1093/rpd/ncy294] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/04/2018] [Revised: 10/11/2018] [Accepted: 01/09/2019] [Indexed: 06/09/2023]
Abstract
The USA must be prepared to provide a prompt, coordinated and integrated response for radiation dose and injury assessment for suspected radiation exposure, whether it involves isolated cases or mass casualties. Dose estimation for radiation accidents typically necessitates a multiple parameter diagnostics approach that includes clinical, biological and physical dosimetry to provide an early-phase radiation dose. A US Individual Dosimetry and Biodosimetry Network (US-IDBN) will increase surge capacity for civilian and military populations in a large-scale incident. The network's goal is to leverage available resources and provide an integrated biodosimetry capability, using multiple parameter diagnostics. Initial operations will be to expand an existing functional integration of two cytogenetic biodosimetry laboratories by developing Standard Operating Procedures, cross-training laboratorians, developing common calibration curves, supporting inter-comparison exercises and obtaining certification to process clinical samples. Integration with certified commercial laboratories will increase surge capacity to meet the needs of a mass-casualty incident.
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Affiliation(s)
- Nicholas Dainiak
- Department of Therapeutic Radiology, Yale University School of Medicine, 333 Cedar Street, New Haven CT 06520, USA
| | - Joseph Albanese
- Department of Therapeutic Radiology, Yale University School of Medicine, 333 Cedar Street, New Haven CT 06520, USA
| | - Meetu Kaushik
- Department of Therapeutic Radiology, Yale University School of Medicine, 333 Cedar Street, New Haven CT 06520, USA
| | - Adayabalam S Balajee
- Radiation Emergency Assistance Center/Training Site, Oak Ridge Institute for Science and Education, PO Box 117, MS 39, Oak Ridge TN 37831, USA
| | | | - Thad J Sharp
- Naval Dosimetry Center, 8901 Wisconsin Avenue, Bethesda MD 20889, USA
| | - William F Blakely
- Uniformed Services University of the Health Sciences, Armed Forces Radiobiology Research Institute, 4555 South Palmer Road, Bldg. 42, Bethesda MD 20889-5648, USA
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16
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Belmans N, Gilles L, Virag P, Hedesiu M, Salmon B, Baatout S, Lucas S, Jacobs R, Lambrichts I, Moreels M. Method validation to assess in vivo cellular and subcellular changes in buccal mucosa cells and saliva following CBCT examinations. Dentomaxillofac Radiol 2019; 48:20180428. [PMID: 30912976 PMCID: PMC6747439 DOI: 10.1259/dmfr.20180428] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2018] [Revised: 01/08/2019] [Accepted: 03/13/2019] [Indexed: 12/12/2022] Open
Abstract
OBJECTIVES Cone-beam CT (CBCT) is a medical imaging technique used in dental medicine. However, there are no conclusive data available indicating that exposure to X-ray doses used by CBCT are harmless. We aim, for the first time, to characterize the potential age-dependent cellular and subcellular effects related to exposure to CBCT imaging. Current objective is to describe and validate the protocol for characterization of cellular and subcellular changes after diagnostic CBCT. METHODS Development and validation of a dedicated two-part protocol: 1) assessing DNA double strand breaks (DSBs) in buccal mucosal (BM) cells and 2) oxidative stress measurements in saliva samples. BM cells and saliva samples are collected prior to and 0.5 h after CBCT examination. BM cells are also collected 24 h after CBCT examination. DNA DSBs are monitored in BM cells via immunocytochemical staining for γH2AX and 53BP1. 8-oxo-7,8-dihydro-2'-deoxyguanosine (8-oxo-dG) and total antioxidant capacity are measured in saliva to assess oxidative damage. RESULTS Validation experiments show that sufficient BM cells are collected (97.1 ± 1.4 %) and that γH2AX/53BP1 foci can be detected before and after CBCT examination. Collection and analysis of saliva samples, either sham exposed or exposed to IR, show that changes in 8-oxo-dG and total antioxidant capacity can be detected in saliva samples after CBCT examination. CONCLUSION The DIMITRA Research Group presents a two-part protocol to analyze potential age-related biological differences following CBCT examinations. This protocol was validated for collecting BM cells and saliva and for analyzing these samples for DNA DSBs and oxidative stress markers, respectively.
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Affiliation(s)
| | - Liese Gilles
- Morphology Group, Biomedical Research Institute, Hasselt University, Diepenbeek, Belgium
| | - Piroska Virag
- ‘Iuliu Hatieganu’ University of Medicine and Pharmacy, Department of Oral and Maxillofacial Radiology, Cluj-Napoca, Romania
| | - Mihaela Hedesiu
- ‘Iuliu Hatieganu’ University of Medicine and Pharmacy, Department of Oral and Maxillofacial Radiology, Cluj-Napoca, Romania
| | - Benjamin Salmon
- Department of Orofacial Pathologies, Imaging and Biotherapies Lab and Dental Medicine, Paris Descartes University - Sorbonne Paris Cité, Bretonneau Hospital, HUPNVS, AP-HP, Paris, France
| | - Sarah Baatout
- Belgian Nuclear Research Centre, Radiobiology Unit, SCK•CEN, Mol, Belgium
| | - Stéphane Lucas
- University of Namur, Research Institute for Life Sciences, Namur, Belgium
| | | | - Ivo Lambrichts
- Morphology Group, Biomedical Research Institute, Hasselt University, Diepenbeek, Belgium
| | - Marjan Moreels
- Belgian Nuclear Research Centre, Radiobiology Unit, SCK•CEN, Mol, Belgium
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17
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Port M, Pieper B, Dörr HD, Hübsch A, Majewski M, Abend M. Correlation of Radiation Dose Estimates by DIC with the METREPOL Hematological Classes of Disease Severity. Radiat Res 2018; 189:449-455. [DOI: 10.1667/rr14936.1] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Affiliation(s)
- M. Port
- Bundeswehr Institute of Radiobiology affiliated to the University of Ulm, Munich, Germany
| | - B. Pieper
- Bundeswehr Institute of Radiobiology affiliated to the University of Ulm, Munich, Germany
| | - H. D. Dörr
- Bundeswehr Institute of Radiobiology affiliated to the University of Ulm, Munich, Germany
| | - A. Hübsch
- Bundeswehr Institute of Radiobiology affiliated to the University of Ulm, Munich, Germany
| | - M. Majewski
- Bundeswehr Institute of Radiobiology affiliated to the University of Ulm, Munich, Germany
| | - M. Abend
- Bundeswehr Institute of Radiobiology affiliated to the University of Ulm, Munich, Germany
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18
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Beinke C, Port M, Ullmann R, Gilbertz K, Majewski M, Abend M. Analysis of Gene Expression Changes in PHA-M Stimulated Lymphocytes - Unraveling PHA Activity as Prerequisite for Dicentric Chromosome Analysis. Radiat Res 2018; 189:579-596. [PMID: 29613823 DOI: 10.1667/rr14974.1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Dicentric chromosome analysis (DCA) is the gold standard for individual radiation dose assessment. However, DCA is limited by the time-consuming phytohemagglutinin (PHA)-mediated lymphocyte activation. In this study using human peripheral blood lymphocytes, we investigated PHA-associated whole genome gene expression changes to elucidate this process and sought to identify suitable gene targets as a means of meeting our long-term objective of accelerating cell cycle kinetics to reduce DCA culture time. Human peripheral whole blood from three healthy donors was separately cultured in RPMI/FCS/antibiotics with BrdU and PHA-M. Diluted whole blood samples were transferred into PAXgene tubes at 0, 12, 24 and 36 h culture time. RNA was isolated and aliquots were used for whole genome gene expression screening. Microarray results were validated using qRT-PCR and differentially expressed genes [significantly (FDR corrected) twofold different from the 0 h value reference] were analyzed using several bioinformatic tools. The cell cycle positions and DNA-synthetic activities of lymphocytes were determined by analyzing the correlated total DNA content and incorporated BrdU level with flow cytometry after continued BrdU incubation. From 42,545 transcripts of the whole genome microarray 47.6%, on average, appeared expressed. The number of differentially expressed genes increased linearly from 855 to 2,858 and 4,607 at 12, 24 and 36 h after PHA addition, respectively. Approximately 2-3 times more up- than downregulated genes were observed with several hundred genes differentially expressed at each time point. Earliest enrichment was observed for gene sets related to the nucleus (12 h) followed by genes assigned to intracellular structures such as organelles (24 h) and finally genes related to the membrane and the extracellular matrix were enriched (36 h). Early gene expression changes at 12 h, in particular, were associated with protein classes such as chemokines/cytokines (e.g., CXCL1, CXCL2) and chaperones. Genes coding for biological processes involved in cell cycle control (e.g., MYBL2, RBL1, CCNA, CCNE) and DNA replication (e.g., POLA, POLE, MCM) appeared enriched at 24 h and later, but many more biological processes (42 altogether) showed enrichment as well. Flow cytometry data fit together with gene expression and bioinformatic analyses as cell cycle transition into S phase was observed with interindividual differences from 12 h onward, whereas progression into G2 as well as into the second G1 occurred from 36 h onward after activation. Gene set enrichment analysis over time identifies, in particular, two molecular categories of PHA-responsive gene targets (cytokine and cell cycle control genes). Based on that analysis target genes for cell cycle acceleration in lymphocytes have been identified ( CDKN1A/B/C, RBL-1/RBL-2, E2F2, Deaf-1), and it remains undetermined whether the time expenditure for DCA can be reduced by influencing gene expression involved in the regulatory circuits controlling PHA-associated cell cycle entry and/or progression at a specific early cell cycle phase.
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Affiliation(s)
- C Beinke
- Bundeswehr Institute of Radiobiology affiliated to the University Ulm, Munich, Germany
| | - M Port
- Bundeswehr Institute of Radiobiology affiliated to the University Ulm, Munich, Germany
| | - R Ullmann
- Bundeswehr Institute of Radiobiology affiliated to the University Ulm, Munich, Germany
| | - K Gilbertz
- Bundeswehr Institute of Radiobiology affiliated to the University Ulm, Munich, Germany
| | - M Majewski
- Bundeswehr Institute of Radiobiology affiliated to the University Ulm, Munich, Germany
| | - M Abend
- Bundeswehr Institute of Radiobiology affiliated to the University Ulm, Munich, Germany
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19
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Nayak AA, Mumbrekar KD, Rao BSS. Pharmacological approach to increasing the retention of radiation-induced γ-H2AX foci using phosphatase inhibitors: significance in radiation biodosimetry. JOURNAL OF RADIOLOGICAL PROTECTION : OFFICIAL JOURNAL OF THE SOCIETY FOR RADIOLOGICAL PROTECTION 2018; 38:318-328. [PMID: 29447119 DOI: 10.1088/1361-6498/aaa97a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
In a scenario of accidental mass radiation exposure transportation and analysis of samples may take some time, resulting in loss of biomarker information over this period. The present study aims to use phosphatase inhibitors for longer retention of focal signals to adopt γ-H2AX as a biodosimetric biomarker for the management of early triage. Peripheral blood lymphocytes isolated from healthy individuals were irradiated in vitro with x-rays and γ-H2AX foci were analysed using fluorescent microscopy and flow cytometric methods. Further, the effect of protein phosphatase 2A inhibitors such as calyculin A, fostriecin and okadiac acid on the retention of foci was studied. Fluorescent microscopy was found to be a more sensitive method than flow cytometry. Calyculin A showed significant retention of focal signals at 6 h with 1.5-fold increased retention compared to radiation alone; this may prove beneficial in early triage management because of a better dose approximation.
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Affiliation(s)
- Akshaykumar A Nayak
- Department of Radiation Biology and Toxicology, School of Life Sciences, Manipal Academy of Higher Education, Manipal 576 104, Karnataka, India
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20
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Bensimon Etzol J, Valente M, Altmeyer S, Bettencourt C, Bouvet S, Cosler G, Desangles F, Drouet M, Entine F, Hérodin F, Jourquin F, Lecompte Y, Martigne P, Michel X, Pateux J, Ugolin N, Chevillard S. DosiKit, a New Portable Immunoassay for Fast External Irradiation Biodosimetry. Radiat Res 2017; 190:176-185. [DOI: 10.1667/rr14760.1] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Affiliation(s)
| | - Marco Valente
- Institut de Recherche Biomedicale des Armées (IRBA), Bretigny, France
| | | | | | | | - Guillaume Cosler
- Institut de Recherche Biomedicale des Armées (IRBA), Bretigny, France
| | | | - Michel Drouet
- Institut de Recherche Biomedicale des Armées (IRBA), Bretigny, France
| | - Fabrice Entine
- Service de Protection Radiologique des Armées (SPRA), Clamart, France
| | - Francis Hérodin
- Institut de Recherche Biomedicale des Armées (IRBA), Bretigny, France
| | - Flora Jourquin
- Service de Protection Radiologique des Armées (SPRA), Clamart, France
| | - Yannick Lecompte
- Service de Protection Radiologique des Armées (SPRA), Clamart, France
| | - Patrick Martigne
- Institut de Recherche Biomedicale des Armées (IRBA), Bretigny, France
| | - Xavier Michel
- Service de Protection Radiologique des Armées (SPRA), Clamart, France
| | - Jérôme Pateux
- Institut de Recherche Biomedicale des Armées (IRBA), Bretigny, France
| | - Nicolas Ugolin
- Commissariat à l'Energie Atomique (CEA), Fontenay-aux-Roses, France
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Hall J, Jeggo PA, West C, Gomolka M, Quintens R, Badie C, Laurent O, Aerts A, Anastasov N, Azimzadeh O, Azizova T, Baatout S, Baselet B, Benotmane MA, Blanchardon E, Guéguen Y, Haghdoost S, Harms-Ringhdahl M, Hess J, Kreuzer M, Laurier D, Macaeva E, Manning G, Pernot E, Ravanat JL, Sabatier L, Tack K, Tapio S, Zitzelsberger H, Cardis E. Ionizing radiation biomarkers in epidemiological studies - An update. MUTATION RESEARCH. REVIEWS IN MUTATION RESEARCH 2017; 771:59-84. [PMID: 28342453 DOI: 10.1016/j.mrrev.2017.01.001] [Citation(s) in RCA: 96] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/08/2016] [Accepted: 01/09/2017] [Indexed: 01/13/2023]
Abstract
Recent epidemiology studies highlighted the detrimental health effects of exposure to low dose and low dose rate ionizing radiation (IR): nuclear industry workers studies have shown increased leukaemia and solid tumour risks following cumulative doses of <100mSv and dose rates of <10mGy per year; paediatric patients studies have reported increased leukaemia and brain tumours risks after doses of 30-60mGy from computed tomography scans. Questions arise, however, about the impact of even lower doses and dose rates where classical epidemiological studies have limited power but where subsets within the large cohorts are expected to have an increased risk. Further progress requires integration of biomarkers or bioassays of individual exposure, effects and susceptibility to IR. The European DoReMi (Low Dose Research towards Multidisciplinary Integration) consortium previously reviewed biomarkers for potential use in IR epidemiological studies. Given the increased mechanistic understanding of responses to low dose radiation the current review provides an update covering technical advances and recent studies. A key issue identified is deciding which biomarkers to progress. A roadmap is provided for biomarker development from discovery to implementation and used to summarise the current status of proposed biomarkers for epidemiological studies. Most potential biomarkers remain at the discovery stage and for some there is sufficient evidence that further development is not warranted. One biomarker identified in the final stages of development and as a priority for further research is radiation specific mRNA transcript profiles.
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Affiliation(s)
- Janet Hall
- Centre de Recherche en Cancérologie de Lyon, INSERM 1052, CNRS 5286, Univ Lyon, Université Claude Bernard, Lyon 1, Lyon, F-69424, France.
| | - Penny A Jeggo
- Genome Damage and Stability Centre, School of Life Sciences, University of Sussex, Falmer, Brighton, BN1 9RQ, United Kingdom
| | - Catharine West
- Translational Radiobiology Group, Institute of Cancer Sciences, The University of Manchester, Manchester Academic Health Science Centre, Christie Hospital, Manchester, M20 4BX, United Kingdom
| | - Maria Gomolka
- Federal Office for Radiation Protection, Department of Radiation Protection and Health, D-85764 Neuherberg, Germany
| | - Roel Quintens
- Radiobiology Unit, Belgian Nuclear Research Centre, SCK·CEN, B-2400 Mol, Belgium
| | - Christophe Badie
- Cancer Mechanisms and Biomarkers group, Radiation Effects Department, Centre for Radiation, Chemical and Environmental Hazards, Public Health England, Chilton, Didcot, United Kingdom
| | - Olivier Laurent
- Institut de Radioprotection et de Sûreté Nucléaire, F-92260 Fontenay-aux-Roses, France
| | - An Aerts
- Radiobiology Unit, Belgian Nuclear Research Centre, SCK·CEN, B-2400 Mol, Belgium
| | - Nataša Anastasov
- Helmholtz Zentrum München, German Research Center for Environmental Health GmbH, Institute of Radiation Biology, D-85764 Neuherberg, Germany
| | - Omid Azimzadeh
- Helmholtz Zentrum München, German Research Center for Environmental Health GmbH, Institute of Radiation Biology, D-85764 Neuherberg, Germany
| | - Tamara Azizova
- Southern Urals Biophysics Institute, Clinical Department, Ozyorsk, Russia
| | - Sarah Baatout
- Radiobiology Unit, Belgian Nuclear Research Centre, SCK·CEN, B-2400 Mol, Belgium; Cell Systems and Imaging Research Group, Department of Molecular Biotechnology, Ghent University, B-9000 Ghent, Belgium
| | - Bjorn Baselet
- Radiobiology Unit, Belgian Nuclear Research Centre, SCK·CEN, B-2400 Mol, Belgium; Pole of Pharmacology, Institut de Recherche Expérimentale et Clinique, Université catholique de Louvain, B-1200 Brussels, Belgium
| | - Mohammed A Benotmane
- Radiobiology Unit, Belgian Nuclear Research Centre, SCK·CEN, B-2400 Mol, Belgium
| | - Eric Blanchardon
- Institut de Radioprotection et de Sûreté Nucléaire, F-92260 Fontenay-aux-Roses, France
| | - Yann Guéguen
- Institut de Radioprotection et de Sûreté Nucléaire, F-92260 Fontenay-aux-Roses, France
| | - Siamak Haghdoost
- Centre for Radiation Protection Research, Department of Molecular Biosciences, The Wenner-Gren Institute, Stockholm University, SE 106 91 Stockholm, Sweden
| | - Mats Harms-Ringhdahl
- Centre for Radiation Protection Research, Department of Molecular Biosciences, The Wenner-Gren Institute, Stockholm University, SE 106 91 Stockholm, Sweden
| | - Julia Hess
- Helmholtz Zentrum München, German Research Center for Environmental Health GmbH, Institute of Radiation Biology, D-85764 Neuherberg, Germany
| | - Michaela Kreuzer
- Federal Office for Radiation Protection, Department of Radiation Protection and Health, D-85764 Neuherberg, Germany
| | - Dominique Laurier
- Institut de Radioprotection et de Sûreté Nucléaire, F-92260 Fontenay-aux-Roses, France
| | - Ellina Macaeva
- Radiobiology Unit, Belgian Nuclear Research Centre, SCK·CEN, B-2400 Mol, Belgium; Cell Systems and Imaging Research Group, Department of Molecular Biotechnology, Ghent University, B-9000 Ghent, Belgium
| | - Grainne Manning
- Cancer Mechanisms and Biomarkers group, Radiation Effects Department, Centre for Radiation, Chemical and Environmental Hazards, Public Health England, Chilton, Didcot, United Kingdom
| | - Eileen Pernot
- INSERM U897, Université de Bordeaux, F-33076 Bordeaux cedex, France
| | - Jean-Luc Ravanat
- Laboratoire des Lésions des Acides Nucléiques, Univ. Grenoble Alpes, INAC-SCIB, F-38000 Grenoble, France; Commissariat à l'Énergie Atomique, INAC-SyMMES, F-38000 Grenoble, France
| | - Laure Sabatier
- Commissariat à l'Énergie Atomique, BP6, F-92265 Fontenay-aux-Roses, France
| | - Karine Tack
- Institut de Radioprotection et de Sûreté Nucléaire, F-92260 Fontenay-aux-Roses, France
| | - Soile Tapio
- Helmholtz Zentrum München, German Research Center for Environmental Health GmbH, Institute of Radiation Biology, D-85764 Neuherberg, Germany
| | - Horst Zitzelsberger
- Helmholtz Zentrum München, German Research Center for Environmental Health GmbH, Institute of Radiation Biology, D-85764 Neuherberg, Germany
| | - Elisabeth Cardis
- Barcelona Institute of Global Health (ISGlobal), Centre for Research in Environmental Epidemiology, Radiation Programme, Barcelona Biomedical Research Park, 08003 Barcelona, Spain; Universitat Pompeu Fabra (UPF) (MTD formerly), Barcelona, Spain; CIBER Epidemiología y Salud Pública (CIBERESP), Madrid, Spain.
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22
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Wojcik A, Oestreicher U, Barrios L, Vral A, Terzoudi G, Ainsbury E, Rothkamm K, Trompier F, Kulka U. The RENEB operational basis: complement of established biodosimetric assays. Int J Radiat Biol 2016; 93:15-19. [DOI: 10.1080/09553002.2016.1235296] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Andrzej Wojcik
- Department of Molecular Biosciences, Stockholm University, Stockholm, Sweden and Jan Kochanowski University, Institute for Biology, Kielce, Poland
| | - Ursula Oestreicher
- Bundesamt fuer Strahlenschutz, Department Radiation Protection and Health, Neuherberg, Germany
| | | | - Anne Vral
- Faculty of Medicine and Health Sciences, Universiteit Gent, Gent, Belgium
| | - Georgia Terzoudi
- National Center for Scientific Research “Demokritos”, Athens, Greece
| | | | - Kai Rothkamm
- Public Health England, CRCE, Chilton, Didcot, Oxon, UK
- University Medical Center Hamburg, Laboratory of Radiation Biology, Hamburg, Germany
| | - Francois Trompier
- Institut de Radioprotection et de Sûreté Nucléaire, Fontenay-aux-Roses, France
| | - Ulrike Kulka
- Bundesamt fuer Strahlenschutz, Department Radiation Protection and Health, Neuherberg, Germany
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23
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Sproull M, Camphausen K. State-of-the-Art Advances in Radiation Biodosimetry for Mass Casualty Events Involving Radiation Exposure. Radiat Res 2016; 186:423-435. [PMID: 27710702 DOI: 10.1667/rr14452.1] [Citation(s) in RCA: 56] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
With the possibility of large-scale terrorist attacks around the world, the need for modeling and development of new medical countermeasures for potential future chemical, biological, radiological and nuclear (CBRN) has been well established. Project Bioshield, initiated in 2004, provided a framework to develop and expedite research in the field of CBRN exposures. To respond to large-scale population exposures from a nuclear event or radiation dispersal device (RDD), new methods for determining received dose using biological modeling became necessary. The field of biodosimetry has advanced significantly beyond this original initiative, with expansion into the fields of genomics, proteomics, metabolomics and transcriptomics. Studies are ongoing to evaluate the use of lymphocyte kinetics for dose assessment, as well as the development of field-deployable EPR technology. In addition, expansion of traditional cytogenetic assessment methods through the use of automated platforms and the development of laboratory surge capacity networks have helped to advance our biodefense preparedness. In this review of the latest advances in the field of biodosimetry we evaluate our progress and identify areas that still need to be addressed to achieve true field-deployment readiness.
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Affiliation(s)
- Mary Sproull
- Radiation Oncology Branch, National Cancer Institute, Bethesda, Maryland
| | - Kevin Camphausen
- Radiation Oncology Branch, National Cancer Institute, Bethesda, Maryland
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24
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Trompier F, Burbidge C, Bassinet C, Baumann M, Bortolin E, De Angelis C, Eakins J, Della Monaca S, Fattibene P, Quattrini MC, Tanner R, Wieser A, Woda C. Overview of physical dosimetry methods for triage application integrated in the new European network RENEB. Int J Radiat Biol 2016; 93:65-74. [DOI: 10.1080/09553002.2016.1221545] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
| | - Christopher Burbidge
- C2TN, Instituto Superior Técnico, Universidade de Lisboa, Portugal, now at SUERC, University of Glasgow, UK
| | - Céline Bassinet
- Institut de Radioprotection et de Sûreté Nucléaire (IRSN), France
| | - Marion Baumann
- Institut de Radioprotection et de Sûreté Nucléaire (IRSN), France
| | | | | | - Jonathan Eakins
- Public Health England Centre for Radiation, Chemical and Environmental Hazards (PHE), UK
| | | | | | | | - Rick Tanner
- Public Health England Centre for Radiation, Chemical and Environmental Hazards (PHE), UK
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25
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Moquet J, Barnard S, Staynova A, Lindholm C, Monteiro Gil O, Martins V, Rößler U, Vral A, Vandevoorde C, Wojewódzka M, Rothkamm K. The second gamma-H2AX assay inter-comparison exercise carried out in the framework of the European biodosimetry network (RENEB). Int J Radiat Biol 2016; 93:58-64. [DOI: 10.1080/09553002.2016.1207822] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Jayne Moquet
- Public Health England, Centre for Radiation Chemical and Environmental Hazards, Chilton, UK
| | - Stephen Barnard
- Public Health England, Centre for Radiation Chemical and Environmental Hazards, Chilton, UK
| | - Albena Staynova
- National Centre of Radiobiology and Radiation Protection, Sofia, Bulgaria
| | - Carita Lindholm
- Radiation and Nuclear Safety Authority (STUK), Helsinki, Finland
| | - Octávia Monteiro Gil
- Instituto Superior Técnico, Universidade de Lisboa, C2TN, Bobadela-LRS, Portugal
| | - Vanda Martins
- Instituto Superior Técnico, Universidade de Lisboa, C2TN, Bobadela-LRS, Portugal
| | - Ute Rößler
- Bundesamt für Strahlenschutz, Oberschleissheim, Germany
| | - Anne Vral
- Department of Basic Medical Sciences, Ghent University, Ghent, Belgium
| | - Charlot Vandevoorde
- Department of Basic Medical Sciences, Ghent University, Ghent, Belgium
- Themba LABS, National Research Foundation, Somerset West, South Africa
| | - Maria Wojewódzka
- Institute of Nuclear Chemistry and Technology, Centre for Radiobiology and Biological Dosimetry, Warsaw, Poland
| | - Kai Rothkamm
- Public Health England, Centre for Radiation Chemical and Environmental Hazards, Chilton, UK
- Department of Radiotherapy & Radio-Oncology, University Medical Centre Hamburg-Eppendorf, Hamburg, Germany
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26
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Flood AB, Ali AN, Boyle HK, Du G, Satinsky VA, Swarts SG, Williams BB, Demidenko E, Schreiber W, Swartz HM. Evaluating the Special Needs of The Military for Radiation Biodosimetry for Tactical Warfare Against Deployed Troops: Comparing Military to Civilian Needs for Biodosimetry Methods. HEALTH PHYSICS 2016; 111:169-82. [PMID: 27356061 PMCID: PMC4930006 DOI: 10.1097/hp.0000000000000538] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
The aim of this paper is to delineate characteristics of biodosimetry most suitable for assessing individuals who have potentially been exposed to significant radiation from a nuclear device explosion when the primary population targeted by the explosion and needing rapid assessment for triage is civilians vs. deployed military personnel. The authors first carry out a systematic analysis of the requirements for biodosimetry to meet the military's needs to assess deployed troops in a warfare situation, which include accomplishing the military mission. Then the military's special capabilities to respond and carry out biodosimetry for deployed troops in warfare are compared and contrasted systematically, in contrast to those available to respond and conduct biodosimetry for civilians who have been targeted by terrorists, for example. Then the effectiveness of different biodosimetry methods to address military vs. civilian needs and capabilities in these scenarios was compared and, using five representative types of biodosimetry with sufficient published data to be useful for the simulations, the number of individuals are estimated who could be assessed by military vs. civilian responders within the timeframe needed for triage decisions. Analyses based on these scenarios indicate that, in comparison to responses for a civilian population, a wartime military response for deployed troops has both more complex requirements for and greater capabilities to use different types of biodosimetry to evaluate radiation exposure in a very short timeframe after the exposure occurs. Greater complexity for the deployed military is based on factors such as a greater likelihood of partial or whole body exposure, conditions that include exposure to neutrons, and a greater likelihood of combined injury. These simulations showed, for both the military and civilian response, that a very fast rate of initiating the processing (24,000 d) is needed to have at least some methods capable of completing the assessment of 50,000 people within a 2- or 6-d timeframe following exposure. This in turn suggests a very high capacity (i.e., laboratories, devices, supplies and expertise) would be necessary to achieve these rates. These simulations also demonstrated the practical importance of the military's superior capacity to minimize time to transport samples to offsite facilities and use the results to carry out triage quickly. Assuming sufficient resources and the fastest daily rate to initiate processing victims, the military scenario revealed that two biodosimetry methods could achieve the necessary throughput to triage 50,000 victims in 2 d (i.e., the timeframe needed for injured victims), and all five achieved the targeted throughput within 6 d. In contrast, simulations based on the civilian scenario revealed that no method could process 50,000 people in 2 d and only two could succeed within 6 d.
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Affiliation(s)
- Ann Barry Flood
- EPR Center for the Study of Viable Systems, Radiology Department, Geisel School of Medicine at Dartmouth, Hanover, NH 03755
| | - Arif N. Ali
- Department of Radiation Oncology, Emory University School of Medicine, Atlanta, GA
| | - Holly K. Boyle
- EPR Center for the Study of Viable Systems, Radiology Department, Geisel School of Medicine at Dartmouth, Hanover, NH 03755
| | - Gaixin Du
- EPR Center for the Study of Viable Systems, Radiology Department, Geisel School of Medicine at Dartmouth, Hanover, NH 03755
| | | | - Steven G. Swarts
- Department of Radiation Oncology, College of Medicine, University of Florida, Gainesville, FL
| | - Benjamin B. Williams
- EPR Center for the Study of Viable Systems, Radiology Department, Geisel School of Medicine at Dartmouth, Hanover, NH 03755
- Radiation Oncology Division, Geisel School of Medicine at Dartmouth, Hanover, NH 03755
| | - Eugene Demidenko
- Department of Biomedical Data Science, Geisel School of Medicine at Dartmouth, Hanover, NH 03755
| | - Wilson Schreiber
- EPR Center for the Study of Viable Systems, Radiology Department, Geisel School of Medicine at Dartmouth, Hanover, NH 03755
| | - Harold M. Swartz
- EPR Center for the Study of Viable Systems, Radiology Department, Geisel School of Medicine at Dartmouth, Hanover, NH 03755
- Radiation Oncology Division, Geisel School of Medicine at Dartmouth, Hanover, NH 03755
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27
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Ainsbury E, Badie C, Barnard S, Manning G, Moquet J, Abend M, Antunes AC, Barrios L, Bassinet C, Beinke C, Bortolin E, Bossin L, Bricknell C, Brzoska K, Buraczewska I, Castaño CH, Čemusová Z, Christiansson M, Cordero SM, Cosler G, Monaca SD, Desangles F, Discher M, Dominguez I, Doucha-Senf S, Eakins J, Fattibene P, Filippi S, Frenzel M, Georgieva D, Gregoire E, Guogyte K, Hadjidekova V, Hadjiiska L, Hristova R, Karakosta M, Kis E, Kriehuber R, Lee J, Lloyd D, Lumniczky K, Lyng F, Macaeva E, Majewski M, Vanda Martins S, McKeever SW, Meade A, Medipally D, Meschini R, M’kacher R, Gil OM, Montero A, Moreno M, Noditi M, Oestreicher U, Oskamp D, Palitti F, Palma V, Pantelias G, Pateux J, Patrono C, Pepe G, Port M, Prieto MJ, Quattrini MC, Quintens R, Ricoul M, Roy L, Sabatier L, Sebastià N, Sholom S, Sommer S, Staynova A, Strunz S, Terzoudi G, Testa A, Trompier F, Valente M, Hoey OV, Veronese I, Wojcik A, Woda C. Integration of new biological and physical retrospective dosimetry methods into EU emergency response plans – joint RENEB and EURADOS inter-laboratory comparisons. Int J Radiat Biol 2016; 93:99-109. [DOI: 10.1080/09553002.2016.1206233] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Elizabeth Ainsbury
- Public Health England Centre for Radiation, Chemical and Environmental Hazards (PHE), Chilton, UK
| | - Christophe Badie
- Public Health England Centre for Radiation, Chemical and Environmental Hazards (PHE), Chilton, UK
| | - Stephen Barnard
- Public Health England Centre for Radiation, Chemical and Environmental Hazards (PHE), Chilton, UK
| | - Grainne Manning
- Public Health England Centre for Radiation, Chemical and Environmental Hazards (PHE), Chilton, UK
| | - Jayne Moquet
- Public Health England Centre for Radiation, Chemical and Environmental Hazards (PHE), Chilton, UK
| | - Michael Abend
- Bundeswehr Institute of Radiobiology (BIR), Munich, Germany
| | - Ana Catarina Antunes
- Centro de Ciências e Tecnologias Nucleares, Instituto Superior Técnico (IST/ITN), Universidade de Lisboa, Bobadela-LRS, Portugal
| | | | - Celine Bassinet
- Institut de Radioprotection et de Sûreté Nucléaire (IRSN), Paris, France
| | - Christina Beinke
- Bundeswehr Institute of Radiobiology affiliated to the University of Ulm (UULM), Munich, Germany
| | | | - Lily Bossin
- Public Health England Centre for Radiation, Chemical and Environmental Hazards (PHE), Chilton, UK
- Durham University (DUR), Durham, UK
| | - Clare Bricknell
- Public Health England Centre for Radiation, Chemical and Environmental Hazards (PHE), Chilton, UK
| | - Kamil Brzoska
- Institute of Nuclear Chemistry and Technology (INCT), Warsaw, Poland
| | - Iwona Buraczewska
- Institute of Nuclear Chemistry and Technology (INCT), Warsaw, Poland
| | | | - Zina Čemusová
- Státní ústav radiační ochrany (SÚRO), Prague, Czech Republic
| | | | | | - Guillaume Cosler
- Institut de Recherche Biomédicale des Armées (IRBA), Paris, France
| | | | | | - Michael Discher
- Salzburg University Department of Geography and Geology, Salzburg, Austria
| | | | | | - Jon Eakins
- Public Health England Centre for Radiation, Chemical and Environmental Hazards (PHE), Chilton, UK
| | | | | | - Monika Frenzel
- PROCyTOX, Commissariat à l’Energie Atomique et aux Energies Alternatives, Université Paris-Saclay (CEA), Fontenay-aux-Roses, France
| | - Dimka Georgieva
- National Center of Radiobiology and Radiation Protection (NCRRP), Bulgaria
| | - Eric Gregoire
- Institut de Radioprotection et de Sûreté Nucléaire (IRSN), Paris, France
| | | | | | | | - Rositsa Hristova
- National Center of Radiobiology and Radiation Protection (NCRRP), Bulgaria
| | - Maria Karakosta
- Laboratory of Health Physics, Radiobiology & Cytogenetics Institute of Nuclear & Radiological Sciences & Technology, Energy & Safety National Center for Scientific Research “Demokritos” (NCSRD), Greece
| | - Enikő Kis
- National Public Health Centre – National Research Institute for Radiobiology and Radiohygiene (NRIRR), Hungary
| | - Ralf Kriehuber
- Radiation Biology Unit Forschungszentrum Jülich GmbH (FzJ), Jülich, Germany
| | - Jungil Lee
- Korea Atomic Energy Research Institute (KAERI), Daejeon, South Korea
| | - David Lloyd
- Public Health England Centre for Radiation, Chemical and Environmental Hazards (PHE), Chilton, UK
| | - Katalin Lumniczky
- National Public Health Centre – National Research Institute for Radiobiology and Radiohygiene (NRIRR), Hungary
| | - Fiona Lyng
- Dublin Institute of Technology (DIT), Dublin, Ireland
| | - Ellina Macaeva
- Belgian Nuclear Research Centre (SCK-CEN), Mol, Belgium
- Ghent University (GU), Ghent, Belgium
| | | | - S. Vanda Martins
- Centro de Ciências e Tecnologias Nucleares, Instituto Superior Técnico (IST/ITN), Universidade de Lisboa, Bobadela-LRS, Portugal
| | | | - Aidan Meade
- Dublin Institute of Technology (DIT), Dublin, Ireland
| | | | | | - Radhia M’kacher
- PROCyTOX, Commissariat à l’Energie Atomique et aux Energies Alternatives, Université Paris-Saclay (CEA), Fontenay-aux-Roses, France
| | - Octávia Monteiro Gil
- Centro de Ciências e Tecnologias Nucleares, Instituto Superior Técnico (IST/ITN), Universidade de Lisboa, Bobadela-LRS, Portugal
| | - Alegria Montero
- Radiation Protection Service, IIS La Fe, Health Research Institute (LAFE), Spain
| | - Mercedes Moreno
- Laboratorio de Dosimetría Biológica, Servicio de Oncología Radioterápica, Hospital General Universitario Gregorio Marañón (SERMAS), Spain
| | | | - Ursula Oestreicher
- Bundesamt fuer Strahlenschutz (BfS), Department Radiation Protection and Health, Neuherberg, Germany
| | - Dominik Oskamp
- Radiation Biology Unit Forschungszentrum Jülich GmbH (FzJ), Jülich, Germany
| | | | - Valentina Palma
- Laboratory of Biosafety and Risk Assessment Division of Health Protection Technologies (ENEA) Casaccia Research Center, Italy
| | - Gabriel Pantelias
- Laboratory of Health Physics, Radiobiology & Cytogenetics Institute of Nuclear & Radiological Sciences & Technology, Energy & Safety National Center for Scientific Research “Demokritos” (NCSRD), Greece
| | - Jerome Pateux
- Institut de Recherche Biomédicale des Armées (IRBA), Paris, France
| | - Clarice Patrono
- Laboratory of Biosafety and Risk Assessment Division of Health Protection Technologies (ENEA) Casaccia Research Center, Italy
| | - Gaetano Pepe
- Università degli Studi della Tuscia (UNITUS), Italy
| | - Matthias Port
- Bundeswehr Institute of Radiobiology (BIR), Munich, Germany
| | - María Jesús Prieto
- Laboratorio de Dosimetría Biológica, Servicio de Oncología Radioterápica, Hospital General Universitario Gregorio Marañón (SERMAS), Spain
| | | | - Roel Quintens
- Belgian Nuclear Research Centre (SCK-CEN), Mol, Belgium
| | - Michelle Ricoul
- PROCyTOX, Commissariat à l’Energie Atomique et aux Energies Alternatives, Université Paris-Saclay (CEA), Fontenay-aux-Roses, France
| | - Laurence Roy
- Institut de Radioprotection et de Sûreté Nucléaire (IRSN), Paris, France
| | - Laure Sabatier
- PROCyTOX, Commissariat à l’Energie Atomique et aux Energies Alternatives, Université Paris-Saclay (CEA), Fontenay-aux-Roses, France
| | - Natividad Sebastià
- Radiation Protection Service, IIS La Fe, Health Research Institute (LAFE), Spain
| | | | - Sylwester Sommer
- Institute of Nuclear Chemistry and Technology (INCT), Warsaw, Poland
| | - Albena Staynova
- National Center of Radiobiology and Radiation Protection (NCRRP), Bulgaria
| | - Sonja Strunz
- Leibniz Institute for Farm Animal Biology (FBN), Dummerstorf, Germany
| | - Georgia Terzoudi
- Laboratory of Health Physics, Radiobiology & Cytogenetics Institute of Nuclear & Radiological Sciences & Technology, Energy & Safety National Center for Scientific Research “Demokritos” (NCSRD), Greece
| | - Antonella Testa
- Laboratory of Biosafety and Risk Assessment Division of Health Protection Technologies (ENEA) Casaccia Research Center, Italy
| | - Francois Trompier
- Institut de Radioprotection et de Sûreté Nucléaire (IRSN), Paris, France
| | - Marco Valente
- Institut de Recherche Biomédicale des Armées (IRBA), Paris, France
| | | | - Ivan Veronese
- Università degli Studi di Milano (UNIMI), Milano, Italy
| | | | - Clemens Woda
- Helmholtz Zentrum München (HMGU), Neuherberg, Germany
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28
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Beinke C, Port M, Riecke A, Ruf CG, Abend M. Adaption of the Cytokinesis-Block Micronucleus Cytome Assay for Improved Triage Biodosimetry. Radiat Res 2016; 185:461-72. [DOI: 10.1667/rr14294.1] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Affiliation(s)
- C. Beinke
- Bundeswehr Institute of Radiobiology, 80937 Munich, Germany
| | - M. Port
- Bundeswehr Institute of Radiobiology, 80937 Munich, Germany
| | - A. Riecke
- Department of Hematology, Federal Armed Forces Hospital, 89081 Ulm, Germany; and
| | - C. G. Ruf
- Department of Urology, Federal Armed Forces Hospital, 56072 Koblenz, Germany
| | - M. Abend
- Bundeswehr Institute of Radiobiology, 80937 Munich, Germany
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29
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Beinke C, Port M, Lamkowski A, Abend M. Comparing seven mitogens with PHA-M for improved lymphocyte stimulation in dicentric chromosome analysis for biodosimetry. RADIATION PROTECTION DOSIMETRY 2016; 168:235-41. [PMID: 25958413 PMCID: PMC4884885 DOI: 10.1093/rpd/ncv286] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2015] [Accepted: 03/13/2015] [Indexed: 05/06/2023]
Abstract
Dicentric chromosome analysis (DCA) is the gold standard for individual radiation dose estimation. Two limiting factors of DCA are the time-consuming lymphocyte stimulation and proliferation using the lectin PHA-M and the upper dose limit of individual dose assessment of ∼4 Gy. By measuring the mitotic index (MI), the authors investigated systematically whether the stimulation of lymphocytes can be improved after administration of alternative (and combined) mitogens. The authors compared the lymphocyte stimulation effectiveness of the traditionally used PHA-M (from Phaseolus vulgaris) with seven cited mitogens by determination of MIs: five lectins namely CNA (concanavalin A), PW (pokeweed), LMA (Maackia amurensis), LTV (T. vulgaris), PHA-L (P. vulgaris) as well as LPS (lipopolysaccharide, Escherichia coli) and SLO (streptolysine O, Streptococcus pyogenes) were applied. The conventional protocol using PHA-M for lymphocyte stimulation proved to be superior over lower/higher PHA-M concentrations as well as seven other mitogens administered either alone or combined with SLO or LPS.
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Affiliation(s)
- C Beinke
- Bundeswehr Institute of Radiobiology Affiliated to the University Ulm, Neuherbergstr. 11, Munich 80937, Germany
| | - M Port
- Bundeswehr Institute of Radiobiology Affiliated to the University Ulm, Neuherbergstr. 11, Munich 80937, Germany
| | - A Lamkowski
- Bundeswehr Institute of Radiobiology Affiliated to the University Ulm, Neuherbergstr. 11, Munich 80937, Germany
| | - M Abend
- Bundeswehr Institute of Radiobiology Affiliated to the University Ulm, Neuherbergstr. 11, Munich 80937, Germany
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30
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Pujol M, Barrios L, Puig P, Caballín MR, Barquinero JF. A New Model for Biological Dose Assessment in Cases of Heterogeneous Exposures to Ionizing Radiation. Radiat Res 2016; 185:151-62. [PMID: 26771173 DOI: 10.1667/rr14145.1] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
In biological dosimetry by dicentric analysis, an exposure to radiation is considered non-homogeneous if the dicentric cell distribution shows overdispersion with respect to Poisson distribution. Traditionally, when this occurs, all non-homogeneous exposures are considered as partial-body exposures, assuming that there is only a mixture of irradiated and nonirradiated cells. The methods to estimate the dose in the irradiated fraction and the initial fraction of irradiated cells are based on separating which part of the cells without aberrations comes from the nonirradiated or irradiated fractions. In this study we show a new approach based on a mixed Poisson model, which allows for a distinction to be made between partial and heterogeneous exposures. To validate this approach blood samples from two donors, a male and a female, irradiated at different doses, were mixed at a 1:1 proportion to simulate partial and heterogeneous exposures. The results show a good agreement between the observed proportion of male and female cells and the proportion estimated by the model. Additionally, a good agreement was observed between the delivered doses, the initial fraction of cells and the ones estimated by the model. This good agreement was also observed after very high-dose irradiation (up to 17 Gy), when the lymphocyte cultures were treated with caffeine. Based on these results, we propose the use of this mixed Poisson model for a more accurate assessment of non-homogeneous exposures.
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Affiliation(s)
- Mònica Pujol
- a Unitat d'Antropologia Biològica, Departament de Biologia Animal, Biologia Vegetal i Ecologia
| | - Leonardo Barrios
- b Unitat de Biologia Cellular, Departament de Biologia Cel·lular, Fisiologia i Immunologia; and
| | - Pedro Puig
- c Departament de Matemàtiques, Universitat Autònoma de Barcelona, E-08193 Bellaterra, Catalonia, Spain
| | - María Rosa Caballín
- a Unitat d'Antropologia Biològica, Departament de Biologia Animal, Biologia Vegetal i Ecologia
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Vandevoorde C, Gomolka M, Roessler U, Samaga D, Lindholm C, Fernet M, Hall J, Pernot E, El-Saghire H, Baatout S, Kesminiene A, Thierens H. EPI-CT: in vitro assessment of the applicability of the γ-H2AX-foci assay as cellular biomarker for exposure in a multicentre study of children in diagnostic radiology. Int J Radiat Biol 2015; 91:653-63. [PMID: 25968559 DOI: 10.3109/09553002.2015.1047987] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
PURPOSE To conduct a feasibility study on the application of the γ-H2AX foci assay as an exposure biomarker in a prospective multicentre paediatric radiology setting. MATERIALS AND METHODS A set of in vitro experiments was performed to evaluate technical hurdles related to biological sample collection in a paediatric radiology setting (small blood sample volume), processing and storing of blood samples (effect of storing blood at 4°C), the reliability of foci scoring for low-doses (merge γ-H2AX/53BP1 scoring), as well as the impact of contrast agent administration as potential confounding factor. Given the exploratory nature of this study and the ethical constraints related to paediatric blood sampling, blood samples from adult volunteers were used for these experiments. In order to test the feasibility of pooling the γ-H2AX data when different centres are involved in an international multicentre study, two intercomparison studies in the low-dose range (10-500 mGy) were performed. RESULTS Determination of the number of X-ray induced γ-H2AX foci is feasible with one 2 ml blood sample pre- and post-computed tomography (CT) scan. Lymphocyte isolation and fixation on slides is necessary within 5 h of blood sampling to guarantee reliable results. The possible enhancement effect of contrast medium on the induction of DNA DSB in a patient study can be ruled out if radiation doses and the contrast agent concentration are within diagnostic ranges. The intercomparison studies using in vitro irradiated blood samples showed that the participating laboratories, executing successfully the γ-H2AX foci assay in lymphocytes, were able to rank blind samples in order of lowest to highest radiation dose based on mean foci/cell counts. The dose response of all intercomparison data shows that a dose point of 10 mGy could be distinguished from the sham-irradiated control (p = 0.006). CONCLUSIONS The results demonstrate that it is feasible to apply the γ-H2AX foci assay as a cellular biomarker of exposure in a multicentre prospective study in paediatric CT imaging after validating it in an in vivo international pilot study on paediatric patients.
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Affiliation(s)
| | - Maria Gomolka
- b Federal Office for Radiation Protection , BfS , Germany
| | - Ute Roessler
- b Federal Office for Radiation Protection , BfS , Germany
| | - Daniel Samaga
- b Federal Office for Radiation Protection , BfS , Germany
| | | | | | - Janet Hall
- e Centre de Recherche en Cancérologie de Lyon - UMR Inserm 1052 - CNRS 5286 , France
| | - Eileen Pernot
- f Centre for Research in Environmental Epidemiology , CREAL , Spain
- g Universitat Pompeu Fabra (UPF) , Barcelona , Spain
- h CIBER Epidemiología y salud P ublica (CIBERESP) , Barcelona , Spain
| | | | - Sarah Baatout
- i Radiobiology Unit, Belgian Nuclear Research Centre, SCK-CEN , Belgium
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Lue SW, Repin M, Mahnke R, Brenner DJ. Development of a High-Throughput and Miniaturized Cytokinesis-Block Micronucleus Assay for Use as a Biological Dosimetry Population Triage Tool. Radiat Res 2015; 184:134-42. [PMID: 26230078 DOI: 10.1667/rr13991.1] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Biodosimetry is an essential tool for providing timely assessments of radiation exposure. For a large mass-casualty event involving exposure to ionizing radiation, it is of utmost importance to rapidly provide dose information for medical treatment. The well-established cytokinesis-block micronucleus (CBMN) assay is a validated method for biodosimetry. However, the need for an accelerated sample processing is required for the CBMN assay to be a suitable population triage tool. We report here on the development of a high-throughput and miniaturized version of the CMBN assay for accelerated sample processing.
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Affiliation(s)
- Stanley W Lue
- a Center for Radiological Research, Department of Radiation Oncology, Columbia University Medical Center, New York, New York 10032; and
| | - Mikhail Repin
- a Center for Radiological Research, Department of Radiation Oncology, Columbia University Medical Center, New York, New York 10032; and
| | - Ryan Mahnke
- b Northrop Grumman, Elkridge, Maryland 21075
| | - David J Brenner
- a Center for Radiological Research, Department of Radiation Oncology, Columbia University Medical Center, New York, New York 10032; and
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Rothkamm K, Barnard S, Moquet J, Ellender M, Rana Z, Burdak-Rothkamm S. DNA damage foci: Meaning and significance. ENVIRONMENTAL AND MOLECULAR MUTAGENESIS 2015; 56:491-504. [PMID: 25773265 DOI: 10.1002/em.21944] [Citation(s) in RCA: 218] [Impact Index Per Article: 24.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/28/2014] [Accepted: 02/13/2015] [Indexed: 06/04/2023]
Abstract
The discovery of DNA damage response proteins such as γH2AX, ATM, 53BP1, RAD51, and the MRE11/RAD50/NBS1 complex, that accumulate and/or are modified in the vicinity of a chromosomal DNA double-strand break to form microscopically visible, subnuclear foci, has revolutionized the detection of these lesions and has enabled studies of the cellular machinery that contributes to their repair. Double-strand breaks are induced directly by a number of physical and chemical agents, including ionizing radiation and radiomimetic drugs, but can also arise as secondary lesions during replication and DNA repair following exposure to a wide range of genotoxins. Here we aim to review the biological meaning and significance of DNA damage foci, looking specifically at a range of different settings in which such markers of DNA damage and repair are being studied and interpreted.
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Affiliation(s)
- Kai Rothkamm
- Public Health England, Centre for Radiation, Chemical and Environmental Hazards, Chilton, United Kingdom
- Department of Radiotherapy, Laboratory of Radiation Biology and Experimental Radiation Oncology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Stephen Barnard
- Public Health England, Centre for Radiation, Chemical and Environmental Hazards, Chilton, United Kingdom
| | - Jayne Moquet
- Public Health England, Centre for Radiation, Chemical and Environmental Hazards, Chilton, United Kingdom
| | - Michele Ellender
- Public Health England, Centre for Radiation, Chemical and Environmental Hazards, Chilton, United Kingdom
| | - Zohaib Rana
- Public Health England, Centre for Radiation, Chemical and Environmental Hazards, Chilton, United Kingdom
| | - Susanne Burdak-Rothkamm
- Department of Cellular Pathology, Oxford University Hospitals, Headley Way, Headington, Oxford, United Kingdom
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Beinke C, Ben-Shlomo A, Abend M, Port M. A Case Report: Cytogenetic Dosimetry after Accidental Radiation Exposure during192Ir Industrial Radiography Testing. Radiat Res 2015; 184:66-72. [DOI: 10.1667/rr14013.1] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Zahnreich S, Ebersberger A, Kaina B, Schmidberger H. Biodosimetry Based on γ-H2AX Quantification and Cytogenetics after Partial- and Total-Body Irradiation during Fractionated Radiotherapy. Radiat Res 2015; 183:432-46. [DOI: 10.1667/rr13911.1] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Affiliation(s)
- Sebastian Zahnreich
- Department of Radiation Oncology and Radiotherapy, University Medical Center Johannes Gutenberg University Mainz, 55131 Mainz, Germany
| | - Anne Ebersberger
- Department of Radiation Oncology and Radiotherapy, University Medical Center Johannes Gutenberg University Mainz, 55131 Mainz, Germany
| | - Bernd Kaina
- Department of Toxicology, University Medical Center Johannes Gutenberg University Mainz, 55131 Mainz, Germany
| | - Heinz Schmidberger
- Department of Radiation Oncology and Radiotherapy, University Medical Center Johannes Gutenberg University Mainz, 55131 Mainz, Germany
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Beinke C, Port M, Abend M. Automatic versus manual lymphocyte fixation: impact on dose estimation using the cytokinesis-block micronucleus assay. RADIATION AND ENVIRONMENTAL BIOPHYSICS 2015; 54:81-90. [PMID: 25398502 DOI: 10.1007/s00411-014-0575-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/01/2014] [Accepted: 10/31/2014] [Indexed: 06/04/2023]
Abstract
The lymphocyte cytokinesis-block micronucleus (CBMN) assay is a biodosemeter for the exposure to ionizing radiation. We examined the feasibility to implement a fully automated cell harvesting system for binucleate lymphocyte (BN) fixation. We compared fully automated versus manual BN fixation and evaluated its relevance on the accuracy of dose estimates using the CBMN. First, dose-response curves based on X-ray irradiated blood samples of ten healthy donors (0-4 Gy, dose rate 1.0 Gy/min) were established. BN was either prepared manually or fully automatically using the Hanabi cell harvester system PII. Slides were finally scored following an automatic or semi-automatic approach using the Metafer4 platform. The variance was calculated per dose and separately for each of the four fixation and scoring combinations. Thereafter, a serial of 16 blood samples of unknown exposure doses (0-3.9 Gy X-ray) was analyzed. Employing the four fixation and scoring combinations, we compared the number of dose estimates lying outside the ±0.5 Gy interval and the mean absolute difference (MAD) and examined sensitivity, specificity and accuracy of doses merged into binary dose categories of clinical significance. Irrespective of the fixation procedure, we observed at doses ≤1.0 Gy about 2-4 times higher median variances for the automated scoring procedure over the semi-automated approach (p ≤ 0.03). The lowest median variance was observed for automatic fixation + semi-automated scoring (135) which was even 2 times lower relative to manual fixation + semi-automated scoring (276, p = 0.04). These differences became negligible after doses >1.0 Gy. For the automatic fixation procedure, we also observed a tendency toward borderline significant higher numbers of dose estimates falling into the ±0.5 Gy interval (25 %, p = 0.08) and lower MAD values (50 %, p = 0.09), which was predominantly caused by the accuracy of dose assessment >1.0 Gy. Regarding the discrimination of binary dose categories of clinical significance, we observed a good agreement of both fixation procedures. The implementation of the automatic cell harvesting system considerably reduces the workload and results in dose estimates with a tendency of being slightly more accurate as they are after a manual fixation.
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Affiliation(s)
- Christina Beinke
- Bundeswehr Institute of Radiobiology, affiliated to the University of Ulm, Neuherbergstraße 11, 80937, Munich, Germany.
| | - Matthias Port
- Bundeswehr Institute of Radiobiology, affiliated to the University of Ulm, Neuherbergstraße 11, 80937, Munich, Germany
| | - Michael Abend
- Bundeswehr Institute of Radiobiology, affiliated to the University of Ulm, Neuherbergstraße 11, 80937, Munich, Germany
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Ainsbury EA, Barnard S, Barrios L, Fattibene P, de Gelder V, Gregoire E, Lindholm C, Lloyd D, Nergaard I, Rothkamm K, Romm H, Scherthan H, Thierens H, Vandevoorde C, Woda C, Wojcik A. Multibiodose radiation emergency triage categorization software. HEALTH PHYSICS 2014; 107:83-89. [PMID: 24849907 DOI: 10.1097/hp.0000000000000049] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
In this note, the authors describe the MULTIBIODOSE software, which has been created as part of the MULTIBIODOSE project. The software enables doses estimated by networks of laboratories, using up to five retrospective (biological and physical) assays, to be combined to give a single estimate of triage category for each individual potentially exposed to ionizing radiation in a large scale radiation accident or incident. The MULTIBIODOSE software has been created in Java. The usage of the software is based on the MULTIBIODOSE Guidance: the program creates a link to a single SQLite database for each incident, and the database is administered by the lead laboratory. The software has been tested with Java runtime environment 6 and 7 on a number of different Windows, Mac, and Linux systems, using data from a recent intercomparison exercise. The Java program MULTIBIODOSE_1.0.jar is freely available to download from http://www.multibiodose.eu/software or by contacting the software administrator: MULTIBIODOSE-software@gmx.com.
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Affiliation(s)
- Elizabeth A Ainsbury
- *Public Health England Centre for Radiation, Chemical and Environmental Hazards, Chilton, Didcot, Oxford OX11 0RQ; †Universitat Autònoma de Barcelona, Spain; ‡Istituto Superiore di Sanità, Italy; §Universiteit Gent, Belgium; **Institut de radioprotection et de sûreté nucléaire, France; ††Radiation and Nuclear Safety Authority, Finland; ‡‡Bundesamt fuer Strahlenschutz, Germany; §§Inst. für Radiobiologie der Bundeswehr in Verb. mit der Univ. Ulm, Germany; ***Helmholtz Zentrum München, Germany; †††Stockholm University, Sweden
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Moquet J, Barnard S, Rothkamm K. Gamma-H2AX biodosimetry for use in large scale radiation incidents: comparison of a rapid '96 well lyse/fix' protocol with a routine method. PeerJ 2014; 2:e282. [PMID: 24688860 PMCID: PMC3961158 DOI: 10.7717/peerj.282] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2013] [Accepted: 01/30/2014] [Indexed: 01/09/2023] Open
Abstract
Following a radiation incident, preliminary dose estimates made by γ-H2AX foci analysis can supplement the early triage of casualties based on clinical symptoms. Sample processing time is important when many individuals need to be rapidly assessed. A protocol was therefore developed for high sample throughput that requires less than 0.1 ml blood, thus potentially enabling finger prick sampling. The technique combines red blood cell lysis and leukocyte fixation in one step on a 96 well plate, in contrast to the routine protocol, where lymphocytes in larger blood volumes are typically separated by Ficoll density gradient centrifugation with subsequent washing and fixation steps. The rapid '96 well lyse/fix' method reduced the estimated sample processing time for 96 samples to about 4 h compared to 15 h using the routine protocol. However, scoring 20 cells in 96 samples prepared by the rapid protocol took longer than for the routine method (3.1 versus 1.5 h at zero dose; 7.0 versus 6.1 h for irradiated samples). Similar foci yields were scored for both protocols and consistent dose estimates were obtained for samples exposed to 0, 0.2, 0.6, 1.1, 1.2, 2.1 and 4.3 Gy of 250 kVp X-rays at 0.5 Gy/min and incubated for 2 h. Linear regression coefficients were 0.87 ± 0.06 (R (2) = 97.6%) and 0.85 ± 0.05 (R (2) = 98.3%) for estimated versus actual doses for the routine and lyse/fix method, respectively. The lyse/fix protocol can therefore facilitate high throughput processing for γ-H2AX biodosimetry for use in large scale radiation incidents, at the cost of somewhat longer foci scoring times.
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Affiliation(s)
- Jayne Moquet
- Public Health England, Centre for Radiation Chemical and Environmental Hazards , Chilton, Didcot, Oxfordshire , UK
| | - Stephen Barnard
- Public Health England, Centre for Radiation Chemical and Environmental Hazards , Chilton, Didcot, Oxfordshire , UK
| | - Kai Rothkamm
- Public Health England, Centre for Radiation Chemical and Environmental Hazards , Chilton, Didcot, Oxfordshire , UK
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