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Palumbo E, Piotto C, Calura E, Fasanaro E, Groff E, Busato F, El Khouzai B, Rigo M, Baggio L, Romualdi C, Zafiropoulos D, Russo A, Mognato M, Corti L. Individual Radiosensitivity in Oncological Patients: Linking Adverse Normal Tissue Reactions and Genetic Features. Front Oncol 2019; 9:987. [PMID: 31632918 PMCID: PMC6779824 DOI: 10.3389/fonc.2019.00987] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2019] [Accepted: 09/16/2019] [Indexed: 11/16/2022] Open
Abstract
Introduction: Adverse effects of radiotherapy (RT) significantly affect patient's quality of life (QOL). The possibility to identify patient-related factors that are associated with individual radiosensitivity would optimize adjuvant RT treatment, limiting the severity of normal tissue reactions, and improving patient's QOL. In this study, we analyzed the relationships between genetic features and toxicity grading manifested by RT patients looking for possible biomarkers of individual radiosensitivity. Methods: Early radiation toxicity was evaluated on 143 oncological patients according to the Common Terminology Criteria for Adverse Events (CTCAE). An individual radiosensitivity (IRS) index defining four classes of radiosensitivity (highly radiosensitive, radiosensitive, normal, and radioresistant) was determined by a G2-chromosomal assay on ex vivo irradiated, patient-derived blood samples. The expression level of 15 radioresponsive genes has been measured by quantitative real-time PCR at 24 h after the first RT fraction, in blood samples of a subset of 57 patients, representing the four IRS classes. Results: By applying univariate and multivariate statistical analyses, we found that fatigue was significantly associated with IRS index. Interestingly, associations were detected between clinical radiation toxicity and gene expression (ATM, CDKN1A, FDXR, SESN1, XPC, ZMAT3, and BCL2/BAX ratio) and between IRS index and gene expression (BBC3, FDXR, GADD45A, and BCL2/BAX). Conclusions: In this prospective cohort study we found that associations exist between normal tissue reactions and genetic features in RT-treated patients. Overall, our findings can contribute to the identification of biological markers to predict RT toxicity in normal tissues.
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Affiliation(s)
- Elisa Palumbo
- Department of Radiotherapy, Veneto Institute of Oncology IOV-IRCCS, Padua, Italy
| | - Celeste Piotto
- Department of Radiotherapy, Veneto Institute of Oncology IOV-IRCCS, Padua, Italy
| | - Enrica Calura
- Department of Biology, University of Padua, Padua, Italy
| | - Elena Fasanaro
- Department of Radiotherapy, Veneto Institute of Oncology IOV-IRCCS, Padua, Italy
| | - Elena Groff
- Department of Radiotherapy, Veneto Institute of Oncology IOV-IRCCS, Padua, Italy
| | - Fabio Busato
- Department of Radiotherapy, Veneto Institute of Oncology IOV-IRCCS, Padua, Italy
| | - Badr El Khouzai
- Department of Radiotherapy, Veneto Institute of Oncology IOV-IRCCS, Padua, Italy
| | - Michele Rigo
- Department of Radiotherapy, Veneto Institute of Oncology IOV-IRCCS, Padua, Italy
| | - Laura Baggio
- Department of Radiotherapy, Veneto Institute of Oncology IOV-IRCCS, Padua, Italy
| | | | - Demetre Zafiropoulos
- National Laboratories of Legnaro, Italian Institute of Nuclear Physics (LNL-INFN), Padua, Italy
| | - Antonella Russo
- Department of Molecular Medicine, University of Padua, Padua, Italy
| | | | - Luigi Corti
- Department of Radiotherapy, Veneto Institute of Oncology IOV-IRCCS, Padua, Italy
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Li S, Lu X, Feng JB, Tian M, Wang J, Chen H, Chen DQ, Liu QJ. Developing Gender-Specific Gene Expression Biodosimetry Using a Panel of Radiation-Responsive Genes for Determining Radiation Dose in Human Peripheral Blood. Radiat Res 2019; 192:399-409. [DOI: 10.1667/rr15355.1] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Affiliation(s)
- Shuang Li
- China CDC Key Laboratory of Radiological Protection and Nuclear Emergency, National Institute for Radiological Protection, Chinese Center for Disease Control and Prevention, Beijing 100088, China
| | - Xue Lu
- China CDC Key Laboratory of Radiological Protection and Nuclear Emergency, National Institute for Radiological Protection, Chinese Center for Disease Control and Prevention, Beijing 100088, China
| | - Jiang-Bin Feng
- China CDC Key Laboratory of Radiological Protection and Nuclear Emergency, National Institute for Radiological Protection, Chinese Center for Disease Control and Prevention, Beijing 100088, China
| | - Mei Tian
- China CDC Key Laboratory of Radiological Protection and Nuclear Emergency, National Institute for Radiological Protection, Chinese Center for Disease Control and Prevention, Beijing 100088, China
| | - Jun Wang
- Department of Hematopoietic Stem Cell Transplantation, 307 Hospital of Chinese People's Liberation Army, Beijing, 100071, China
| | - Hu Chen
- Department of Hematopoietic Stem Cell Transplantation, 307 Hospital of Chinese People's Liberation Army, Beijing, 100071, China
| | - De-Qing Chen
- China CDC Key Laboratory of Radiological Protection and Nuclear Emergency, National Institute for Radiological Protection, Chinese Center for Disease Control and Prevention, Beijing 100088, China
| | - Qing-Jie Liu
- China CDC Key Laboratory of Radiological Protection and Nuclear Emergency, National Institute for Radiological Protection, Chinese Center for Disease Control and Prevention, Beijing 100088, China
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53
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Visweswaran S, Joseph S, S VH, O A, Jose M, Perumal V. DNA damage and gene expression changes in patients exposed to low-dose X-radiation during neuro-interventional radiology procedures. MUTATION RESEARCH-GENETIC TOXICOLOGY AND ENVIRONMENTAL MUTAGENESIS 2019; 844:54-61. [DOI: 10.1016/j.mrgentox.2019.05.011] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/04/2019] [Revised: 05/20/2019] [Accepted: 05/20/2019] [Indexed: 12/01/2022]
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Gomolka M, Blyth B, Bourguignon M, Badie C, Schmitz A, Talbot C, Hoeschen C, Salomaa S. Potential screening assays for individual radiation sensitivity and susceptibility and their current validation state. Int J Radiat Biol 2019; 96:280-296. [PMID: 31347938 DOI: 10.1080/09553002.2019.1642544] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Purpose: The workshop on 'Individual Radiosensitivity and Radiosusceptibility' organized by MELODI and CONCERT on Malta in 2018, evaluated the current state of assays to identify sensitive and susceptible subgroups. The authors provide an overview on potential screening assays detecting individuals showing moderate to severe early and late radiation reactions or are at increased risk to develop cancer upon radiation exposure.Conclusion: It is necessary to separate clearly between tissue reactions and stochastic effects such as cancer when comparing the existing literature to validate various test systems. Requirements for the assays are set up. The literature is reviewed for assays that are reliable and robust. Sensitivity and specificity of the assays are regarded and scrutinized for modifying factors. Accuracy of an assay system is required to be more than 90% to balance risks of adverse reactions against risk to fail to cure the cancer. No assay/biomarker is in routine use. Assays that have shown predictive potential for radiosensitivity include SNPs, the RILA assay, and the pATM assay. A tree of risk guideline for radiologists is provided to assist medical treatment decisions. Recommendations for effective research include the setup of common retrospective and prospective cohorts/biobanks to validate current and future tests.
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Affiliation(s)
- Maria Gomolka
- Federal Office for Radiation Protection, Neuherberg, Germany
| | - Benjamin Blyth
- Department of Radiation Oncology, Peter MacCallum Cancer Centre, Melbourne, Australia
| | | | - Christophe Badie
- Cancer Mechanisms and Biomarkers Group, Radiation Effects Department Centre for Radiation, Chemical and Environmental Hazards Public Health England, Didcot, United Kingdom
| | - Annette Schmitz
- Institut de Radiobiologie Cellulaire et Moléculaire, Institut de Biologie François Jacob, Direction de la Recherche Fondamentale, CEA, Paris, France
| | - Christopher Talbot
- Department of Genetics and Genome Biology, University of Leicester, Leicester, United Kingdom
| | - Christoph Hoeschen
- Faculty of Electrical Engineering and Information Technology, Institute for Medical Technology, Otto-von-Guericke-University, Magdeburg, Germany
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Zyla J, Kabacik S, O'Brien G, Wakil S, Al-Harbi N, Kaprio J, Badie C, Polanska J, Alsbeih G. Combining CDKN1A gene expression and genome-wide SNPs in a twin cohort to gain insight into the heritability of individual radiosensitivity. Funct Integr Genomics 2019; 19:575-585. [PMID: 30706161 PMCID: PMC6570669 DOI: 10.1007/s10142-019-00658-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2018] [Revised: 12/12/2018] [Accepted: 01/09/2019] [Indexed: 12/15/2022]
Abstract
Individual variability in response to radiation exposure is recognised and has often been reported as important in treatment planning. Despite many efforts to identify biomarkers allowing the identification of radiation sensitive patients, it is not yet possible to distinguish them with certainty before the beginning of the radiotherapy treatment. A comprehensive analysis of genome-wide single-nucleotide polymorphisms (SNPs) and a transcriptional response to ionising radiation exposure in twins have the potential to identify such an individual. In the present work, we investigated SNP profile and CDKN1A gene expression in blood T lymphocytes from 130 healthy Caucasians with a complex level of individual kinship (unrelated, mono- or dizygotic twins). It was found that genetic variation accounts for 66% (95% CI 37-82%) of CDKN1A transcriptional response to radiation exposure. We developed a novel integrative multi-kinship strategy allowing investigating the role of genome-wide polymorphisms in transcriptomic radiation response, and it revealed that rs205543 (ETV6 gene), rs2287505 and rs1263612 (KLF7 gene) are significantly associated with CDKN1A expression level. The functional analysis revealed that rs6974232 (RPA3 gene), involved in mismatch repair (p value = 9.68e-04) as well as in RNA repair (p value = 1.4e-03) might have an important role in that process. Two missense polymorphisms with possible deleterious effect in humans were identified: rs1133833 (AKIP1 gene) and rs17362588 (CCDC141 gene). In summary, the data presented here support the validity of this novel integrative data analysis strategy to provide insights into the identification of SNPs potentially influencing radiation sensitivity. Further investigations in radiation response research at the genomic level should be therefore continued to confirm these findings.
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Affiliation(s)
- Joanna Zyla
- Data Mining Division, Faculty of Automatic Control, Electronic and Computer Science, Silesian University of Technology, Akademicka 16, 44-100, Gliwice, Poland
| | - Sylwia Kabacik
- Cellular Biology Group, Radiation Effects Department, Centre for Radiation, Chemical and Environmental Hazards, Public Health England, Chilton, Didcot, OX11 0RQ, UK
| | - Grainne O'Brien
- Cancer Mechanisms and Biomarkers Group, Radiation Effects Department, Centre for Radiation, Chemical and Environmental Hazards, Public Health England, Chilton, Didcot, OX11 0RQ, UK
| | - Salma Wakil
- Department of Genetics, King Faisal Specialist Hospital and Research Centre, Riyadh, 11211, Kingdom of Saudi Arabia
| | - Najla Al-Harbi
- Radiation Biology Section, Biomedical Physics Department, King Faisal Specialist Hospital and Research Centre, Riyadh, 11211, Kingdom of Saudi Arabia
| | - Jaakko Kaprio
- Department of Public Health and Institute for Molecular Medicine FIMM, University of Helsinki, 00140, Helsinki, Finland
| | - Christophe Badie
- Cancer Mechanisms and Biomarkers Group, Radiation Effects Department, Centre for Radiation, Chemical and Environmental Hazards, Public Health England, Chilton, Didcot, OX11 0RQ, UK
| | - Joanna Polanska
- Data Mining Division, Faculty of Automatic Control, Electronic and Computer Science, Silesian University of Technology, Akademicka 16, 44-100, Gliwice, Poland.
| | - Ghazi Alsbeih
- Radiation Biology Section, Biomedical Physics Department, King Faisal Specialist Hospital and Research Centre, Riyadh, 11211, Kingdom of Saudi Arabia
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Port M, Ostheim P, Majewski M, Voss T, Haupt J, Lamkowski A, Abend M. Rapid High-Throughput Diagnostic Triage after a Mass Radiation Exposure Event Using Early Gene Expression Changes. Radiat Res 2019; 192:208-218. [PMID: 31211643 DOI: 10.1667/rr15360.1] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Radiological exposure scenarios involving large numbers of people require a rapid and high-throughput method to identify the unexposed, and those exposed to low- and high-dose radiation. Those with high-dose exposure, e.g., >2 Gy and depending on host characteristics, may develop severe hematological acute radiation syndrome (HARS), requiring hospitalization and treatment. Previously, we identified a set of genes that discriminated these clinically relevant groups. In the current work, we examined the utility of gene expression changes to classify 1,000 split blood samples into HARS severity scores of H0, H1 and H2-4, with the latter indicating likely hospitalization. In several previous radiation dose experiments, we determined that these HARS categories corresponded, respectively, to doses of 0 Gy (unexposed), 0.5 Gy and 5 Gy. The main purpose of this work was to assess the rapidity of blood sample processing using targeted next-generation sequencing (NGS). Peripheral blood samples from two healthy donors were X-ray irradiated in vitro and incubated at 37°C for 24 h. A total of 1,000 samples were evaluated by laboratory personnel blinded to the radiation dose. Changes in gene expression of FDXR, DDB2, POU2AF1 and WNT3 were examined with qRT-PCR as positive controls. Targeted NGS (TREX) was used on all samples for the same four genes. Agreement using both methods was almost 78%. Using NGS, all 1,000 samples were processed within 30 h. Classification of the HARS severity categories corresponding to radiation dose had an overall agreement ranging between 90-97%. Depending on the end point, either a combination of all genes or FDXR alone (H0 HARS or unexposed) provided the best classification. Using this optimized automated methodology, we assessed 100× more samples approximately three times faster compared to standard cytogenetic studies. We showed that a small set of genes, rather than a complex constellation of genes, provided robust positive (97%) and negative (97%) predictive values for HARS categories and radiation doses of 0, 0.5 and 5 Gy. The findings of this study support the potential utility of early radiation-induced gene expression changes for high-throughput biodosimetry and rapid identification of irradiated persons in need of hospitalization.
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Affiliation(s)
- Matthias Port
- a Bundeswehr Institute of Radiobiology, Munich, Germany
| | | | | | | | - Julian Haupt
- a Bundeswehr Institute of Radiobiology, Munich, Germany
| | - Andreas Lamkowski
- a Bundeswehr Institute of Radiobiology, Munich, Germany.,c Institute and Outpatient Clinic for Occupational, Social and Environmental Medicine, AllergieZENTRUM, Klinikum der Universität München, Munich, Germany
| | - Michael Abend
- a Bundeswehr Institute of Radiobiology, Munich, Germany
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Rusin A, Hamada N. Exploring the legacy and impact of historical IJRB articles and contributions to ICRP publications and Radiation Research articles through graphical reference mapping. Int J Radiat Biol 2019; 95:802-815. [PMID: 30806134 DOI: 10.1080/09553002.2019.1587195] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
The International Journal of Radiation Biology (IJRB) celebrates its 60th birthday this year. Ahead of this very special issue, we wanted to produce strong representations of the journal's publication history in order to celebrate the current status of the journal and to look forward to its future. This was accomplished using 'reference maps'. Reference data were used from 1959 onward from the highest-cited paper in IJRB, for each respective year, to create a figure displaying when those articles were cited in IJRB since their publication. This was done to show the relative impact of historical IJRB papers to future research. Common themes of research were also examined by decade. Additionally, to show the historical impact of the journal outside of its immediate area of research and its practical applications, information on IJRB articles cited by the International Commission on Radiological Protection (ICRP) was collected. It was in 1959 when IJRB published the first issue, and when ICRP also issued Publication 1. Among all Publications (1-139), 43 publications have thus far cited 320 IJRB papers and each of which have been cited 1-7 times. Most notably, Publications 90, 99, 118, and 131 cited more than 40 IJRB papers. Further research was done into references for IJRB's contemporary journal: Radiation Research. The most highly cited IJRB articles for each year together since its inception were cited 16,760 times since they were published and cited 1385 times in Radiation Research. Together, these three datasets and their representations show the diversity of historical IJRB publications, the impact of historical IJRB articles in both future research in the journal and outside of it, and articles which new prospective authors contributing to IJRB might find useful in their own research.
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Affiliation(s)
- Andrej Rusin
- a Department of Biology , McMaster University , Hamilton , Canada
| | - Nobuyuki Hamada
- b Radiation Safety Research Center, Nuclear Technology Research Laboratory , Central Research Institute of Electric Power Industry (CRIEPI) , Tokyo , Japan
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Raavi V, Surendran J, Karthik K, Paul SFD, Thayalan K, Arunakaran J, Venkatachalam P. Measurement of γ-H2AX foci, miRNA-101, and gene expression as a means to quantify radiation-absorbed dose in cancer patients who had undergone radiotherapy. RADIATION AND ENVIRONMENTAL BIOPHYSICS 2019; 58:69-80. [PMID: 30467642 DOI: 10.1007/s00411-018-0767-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/29/2018] [Accepted: 11/12/2018] [Indexed: 06/09/2023]
Abstract
Radiological accidents and nuclear terrorism pose an increased threat to members of the public who, following such an event, would need to be assessed for medical care by fast triage. Assay methods such as chromosome aberrations (CA), cytokinesis-block micronucleus (CBMN) and fluorescence in situ hybridization (FISH) techniques have been well established for dose estimation and their potential for handling more samples has also been proved with automation. However, culturing of lymphocytes is an inevitable step, which limits the potential of these markers for triage. In vitro analysis of gamma-H2AX (γ-H2AX), gene and microRNA (miRNA) markers do not require culturing of lymphocytes, and as such have been suggested as attractive tools for triage. Despite studies reporting in vitro dose-response curves, limited evidence is available evaluating the suitability of these assays in real situations. In this study, we have measured the absorbed dose using γ-H2AX, gene (GADD45A, FDXR, and CDKN1A) and miRNA-101 expression in blood samples of cancer patients (n = 20) who had undergone partial-body radiotherapy and compared with the derived equivalent whole-body doses (EWBD). The obtained results from all patients showed a significant (p < 0.05) increase of γ-H2AX foci in post-irradiated as compared to pre-irradiated samples. Moreover, estimated doses using γ-H2AX foci showed a correlation with the derived EWBD (r2 = 0.60, p = 0.0003) and was also shown to be dependent on the irradiated body volume. Consistent with γ-H2AX foci frequency, an increase in fold change expression of genes and miRNA-101 was observed. However, the estimated dose significantly varied among the subjects and showed poor correlation (r2 = 0.09, 0.04, 0.01 and 0.03 for GADD45A, FDXR, CDKN1A and miRNA-101, respectively) with EWBD. The overall results suggest that the established in vitro γ-H2AX assay is suitable for the detection of radiation exposure and can also provide an estimate of the dose in in vivo irradiated samples. The genes and miRNA-101 markers showed increased expression; nevertheless, there is a need for further improvements to measure doses accurately using these markers.
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Affiliation(s)
- Venkateswarlu Raavi
- Department of Human Genetics, Sri Ramachandra Medical College and Research Institute (Deemed to be University), Porur, Chennai, 600 116, India
| | - J Surendran
- Department of Radiation Oncology, Kamakshi Memorial Hospital, Pallikaranai, Chennai, 600 100, India
| | - K Karthik
- Department of Human Genetics, Sri Ramachandra Medical College and Research Institute (Deemed to be University), Porur, Chennai, 600 116, India
| | - Solomon F D Paul
- Department of Human Genetics, Sri Ramachandra Medical College and Research Institute (Deemed to be University), Porur, Chennai, 600 116, India
| | - K Thayalan
- Department of Radiation Oncology, Kamakshi Memorial Hospital, Pallikaranai, Chennai, 600 100, India
| | - J Arunakaran
- Department of Endocrinology, Dr. ALM PGIBMS, University of Madras, Taramani, Chennai, 600 113, India
| | - Perumal Venkatachalam
- Department of Human Genetics, Sri Ramachandra Medical College and Research Institute (Deemed to be University), Porur, Chennai, 600 116, India.
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Moquet J, Higueras M, Donovan E, Boyle S, Barnard S, Bricknell C, Sun M, Gothard L, O’Brien G, Cruz-Garcia L, Badie C, Ainsbury E, Somaiah N. Dicentric Dose Estimates for Patients Undergoing Radiotherapy in the RTGene Study to Assess Blood Dosimetric Models and the New Bayesian Method for Gradient Exposure. Radiat Res 2018; 190:596-604. [PMID: 30234457 PMCID: PMC6426678 DOI: 10.1667/rr15116.1] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
The RTGene study was focused on the development and validation of new transcriptional biomarkers for prediction of individual radiotherapy patient responses to ionizing radiation. In parallel, for validation purposes, this study incorporated conventional biomarkers of radiation exposure, including the dicentric assay. Peripheral blood samples were taken with ethical approval and informed consent from a total of 20 patients undergoing external beam radiotherapy for breast, lung, gastrointestinal or genitourinary tumors. For the dicentric assay, two samples were taken from each patient: prior to radiotherapy and before the final fraction. Blood samples were set up using standard methods for the dicentric assay. All the baseline samples had dicentric frequencies consistent with the expected background for the normal population. For blood taken before the final fraction, all the samples displayed distributions of aberrations, which are indicative of partial-body exposures. Whole-body and partial-body cytogenetic doses were calculated with reference to a 250-kVp X-ray calibration curve and then compared to the dose to blood derived using two newly developed blood dosimetric models. Initial comparisons indicated that the relationship between these measures of dose appear very promising, with a correlation of 0.88 (P = 0.001). A new Bayesian zero-inflated Poisson finite mixture method was applied to the dicentric data, and partial-body dose estimates showed no significant difference (P > 0.999) from those calculated by the contaminated Poisson technique. The next step will be further development and validation in a larger patient group.
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Affiliation(s)
- Jayne Moquet
- Public Health England, Centre for Radiation, Chemical and Environmental Hazards (PHE-CRCE), Chilton, Didcot, Oxford OX11 0RQ, United Kingdom
| | | | - Ellen Donovan
- Centre for Vision Speech and Signal Processing, University of Surrey, Guildford, GU2 7XH, United Kingdom
| | - Sue Boyle
- Institute of Cancer Research (ICR), Sutton, London SM2 5NG, United Kingdom
| | - Stephen Barnard
- Public Health England, Centre for Radiation, Chemical and Environmental Hazards (PHE-CRCE), Chilton, Didcot, Oxford OX11 0RQ, United Kingdom
| | - Clare Bricknell
- Public Health England, Centre for Radiation, Chemical and Environmental Hazards (PHE-CRCE), Chilton, Didcot, Oxford OX11 0RQ, United Kingdom
| | - Mingzhu Sun
- Public Health England, Centre for Radiation, Chemical and Environmental Hazards (PHE-CRCE), Chilton, Didcot, Oxford OX11 0RQ, United Kingdom
| | - Lone Gothard
- Institute of Cancer Research (ICR), Sutton, London SM2 5NG, United Kingdom
| | - Grainne O’Brien
- Public Health England, Centre for Radiation, Chemical and Environmental Hazards (PHE-CRCE), Chilton, Didcot, Oxford OX11 0RQ, United Kingdom
| | - Lourdes Cruz-Garcia
- Public Health England, Centre for Radiation, Chemical and Environmental Hazards (PHE-CRCE), Chilton, Didcot, Oxford OX11 0RQ, United Kingdom
| | - Christophe Badie
- Public Health England, Centre for Radiation, Chemical and Environmental Hazards (PHE-CRCE), Chilton, Didcot, Oxford OX11 0RQ, United Kingdom
| | - Elizabeth Ainsbury
- Public Health England, Centre for Radiation, Chemical and Environmental Hazards (PHE-CRCE), Chilton, Didcot, Oxford OX11 0RQ, United Kingdom
| | - Navita Somaiah
- Institute of Cancer Research (ICR), Sutton, London SM2 5NG, United Kingdom
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Einbeck J, Ainsbury EA, Sales R, Barnard S, Kaestle F, Higueras M. A statistical framework for radiation dose estimation with uncertainty quantification from the γ-H2AX assay. PLoS One 2018; 13:e0207464. [PMID: 30485322 PMCID: PMC6261578 DOI: 10.1371/journal.pone.0207464] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2018] [Accepted: 10/31/2018] [Indexed: 11/18/2022] Open
Abstract
Over the last decade, the γ–H2AX focus assay, which exploits the phosphorylation of the H2AX histone following DNA double–strand–breaks, has made considerable progress towards acceptance as a reliable biomarker for exposure to ionizing radiation. While the existing literature has convincingly demonstrated a dose–response effect, and also presented approaches to dose estimation based on appropriately defined calibration curves, a more widespread practical use is still hampered by a certain lack of discussion and agreement on the specific dose–response modelling and uncertainty quantification strategies, as well as by the unavailability of implementations. This manuscript intends to fill these gaps, by stating explicitly the statistical models and techniques required for calibration curve estimation and subsequent dose estimation. Accompanying this article, a web applet has been produced which implements the discussed methods.
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Affiliation(s)
- Jochen Einbeck
- Department of Mathematical Sciences, Durham University, Durham, United Kingdom
- * E-mail:
| | - Elizabeth A. Ainsbury
- Public Health England, Chemical and Environmental Hazards, Chilton, Didcot, United Kingdom
| | - Rachel Sales
- Department of Mathematical Sciences, Durham University, Durham, United Kingdom
| | - Stephen Barnard
- Public Health England, Chemical and Environmental Hazards, Chilton, Didcot, United Kingdom
| | - Felix Kaestle
- Bundesamt für Strahlenschutz, Fachbereich Strahlenschutz und Gesundheit, Oberschleissheim, Germany
| | - Manuel Higueras
- Departamento de Matemáticas y Computación, Universidad de La Rioja, Logroño, La Rioja, Spain
- Basque Center for Applied Mathematics, Bilbao, Basque Country, Spain
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Piotto C, Biscontin A, Millino C, Mognato M. Functional validation of miRNAs targeting genes of DNA double-strand break repair to radiosensitize non-small lung cancer cells. BIOCHIMICA ET BIOPHYSICA ACTA-GENE REGULATORY MECHANISMS 2018; 1861:1102-1118. [PMID: 30389599 DOI: 10.1016/j.bbagrm.2018.10.010] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/22/2018] [Revised: 10/18/2018] [Accepted: 10/23/2018] [Indexed: 01/10/2023]
Abstract
DNA-Double strand breaks (DSBs) generated by radiation therapy represent the most efficient lesions to kill tumor cells, however, the inherent DSB repair efficiency of tumor cells can cause cellular radioresistance and impact on therapeutic outcome. Genes of DSB repair represent a target for cancer therapy since their down-regulation can impair the repair process making the cells more sensitive to radiation. In this study, we analyzed the combination of ionizing radiation (IR) along with microRNA-mediated targeting of genes involved in DSB repair to sensitize human non-small cell lung cancer (NSCLC) cells. MicroRNAs are natural occurring modulators of gene expression and therefore represent an attractive strategy to affect the expression of DSB repair genes. As possible IR-sensitizing targets genes we selected genes of homologous recombination (HR) and non-homologous end joining (NHEJ) pathway (i.e. RAD51, BRCA2, PRKDC, XRCC5, LIG1). We examined these genes to determine whether they may be real targets of selected miRNAs by functional and biological validation. The in vivo effectiveness of miRNA treatments has been examined in cells over-expressing miRNAs and treated with IR. Taken together, our results show that hsa-miR-96-5p and hsa-miR-874-3p can directly regulate the expression of target genes. When these miRNAs are combined with IR can decrease the survival of NSCLC cells to a higher extent than that exerted by radiation alone, and similarly to radiation combined with specific chemical inhibitors of HR and NHEJ repair pathway.
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Affiliation(s)
- Celeste Piotto
- Department of Biology, School of Sciences, University of Padova, via U. Bassi 58 B, 35131 Padova, Italy
| | - Alberto Biscontin
- Department of Biology, School of Sciences, University of Padova, via U. Bassi 58 B, 35131 Padova, Italy
| | - Caterina Millino
- CRIBI Biotechnology Centre, University of Padova, via U. Bassi 58/B, 35131 Padova, Italy
| | - Maddalena Mognato
- Department of Biology, School of Sciences, University of Padova, via U. Bassi 58 B, 35131 Padova, Italy.
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Macaeva E, Mysara M, De Vos WH, Baatout S, Quintens R. Gene expression-based biodosimetry for radiological incidents: assessment of dose and time after radiation exposure. Int J Radiat Biol 2018; 95:64-75. [PMID: 30247087 DOI: 10.1080/09553002.2018.1511926] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
PURPOSE In order to ensure efficient use of medical resources following a radiological incident, there is an urgent need for high-throughput time-efficient biodosimetry tools. In the present study, we tested the applicability of a gene expression signature for the prediction of exposure dose as well as the time elapsed since irradiation. MATERIALS AND METHODS We used whole blood samples from seven healthy volunteers as reference samples (X-ray doses: 0, 25, 50, 100, 500, 1000, and 2000 mGy; time points: 8, 12, 24, 36 and 48 h) and samples from seven other individuals as 'blind samples' (20 samples in total). RESULTS Gene expression values normalized to the reference gene without normalization to the unexposed controls were sufficient to predict doses with a correlation coefficient between the true and the predicted doses of 0.86. Importantly, we could also classify the samples according to the time since exposure with a correlation coefficient between the true and the predicted time point of 0.96. Because of the dynamic nature of radiation-induced gene expression, this feature will be of critical importance for adequate gene expression-based dose prediction in a real emergency situation. In addition, in this study we also compared different methodologies for RNA extraction available on the market and suggested the one most suitable for emergency situation which does not require on-spot availability of any specific reagents or equipment. CONCLUSIONS Our results represent an important advancement in the application of gene expression for biodosimetry purposes.
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Affiliation(s)
- Ellina Macaeva
- a Interdisciplinary Biosciences Group, Belgian Nuclear Research Centre, SCK•CEN, Mol , Belgium.,b Department of Molecular Biotechnology , Ghent University , Ghent , Belgium
| | - Mohamed Mysara
- a Interdisciplinary Biosciences Group, Belgian Nuclear Research Centre, SCK•CEN, Mol , Belgium
| | - Winnok H De Vos
- b Department of Molecular Biotechnology , Ghent University , Ghent , Belgium.,c Department of Veterinary Sciences , University of Antwerp , Belgium
| | - Sarah Baatout
- a Interdisciplinary Biosciences Group, Belgian Nuclear Research Centre, SCK•CEN, Mol , Belgium.,b Department of Molecular Biotechnology , Ghent University , Ghent , Belgium
| | - Roel Quintens
- a Interdisciplinary Biosciences Group, Belgian Nuclear Research Centre, SCK•CEN, Mol , Belgium
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Candidate protein markers for radiation biodosimetry in the hematopoietically humanized mouse model. Sci Rep 2018; 8:13557. [PMID: 30202043 PMCID: PMC6131502 DOI: 10.1038/s41598-018-31740-8] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2018] [Accepted: 08/23/2018] [Indexed: 12/20/2022] Open
Abstract
After a radiological incident, there is an urgent need for fast and reliable bioassays to identify radiation-exposed individuals within the first week post exposure. This study aimed to identify candidate radiation-responsive protein biomarkers in human lymphocytes in vivo using humanized NOD scid gamma (Hu-NSG) mouse model. Three days after X-irradiation (0–2 Gy, 88 cGy/min), human CD45+ lymphocytes were collected from the Hu-NSG mouse spleen and quantitative changes in the proteome of the human lymphocytes were analysed by mass spectrometry. Forty-six proteins were differentially expressed in response to radiation exposure. FDXR, BAX, DDB2 and ACTN1 proteins were shown to have dose-dependent response with a fold change greater than 2. When these proteins were used to estimate radiation dose by linear regression, the combination of FDXR, ACTN1 and DDB2 showed the lowest mean absolute errors (≤0.13 Gy) and highest coefficients of determination (R2 = 0.96). Biomarker validation studies were performed in human lymphocytes 3 days after irradiation in vivo and in vitro. In conclusion, this is the first study to identify radiation-induced human protein signatures in vivo using the humanized mouse model and develop a protein panel which could be used for the rapid assessment of absorbed dose 3 days after radiation exposure.
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Cruz-Garcia L, O’Brien G, Donovan E, Gothard L, Boyle S, Laval A, Testard I, Ponge L, Woźniak G, Miszczyk L, Candéias SM, Ainsbury E, Widlak P, Somaiah N, Badie C. Influence of Confounding Factors on Radiation Dose Estimation Using In Vivo Validated Transcriptional Biomarkers. HEALTH PHYSICS 2018; 115:90-101. [PMID: 29787434 PMCID: PMC5967635 DOI: 10.1097/hp.0000000000000844] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/07/2023]
Abstract
For triage purposes following a nuclear accident, blood-based gene expression biomarkers can provide rapid dose estimates for a large number of individuals. Ionizing-radiation-responsive genes are regulated through the DNA damage-response pathway, which includes activation of multiple transcription factors. Modulators of this pathway could potentially affect the response of these biomarkers and consequently compromise accurate dose estimation calculations. In the present study, four potential confounding factors were selected: cancer condition, sex, simulated bacterial infection (lipopolysaccharide), and curcumin, an anti-inflammatory/antioxidant agent. Their potential influence on the transcriptional response to radiation of the genes CCNG1 and PHPT1, two biomarkers of radiation exposure ex vivo, was assessed. First, both CCNG1 and PHPT1 were detected in vivo in blood samples from radiotherapy patients and as such were validated as biomarkers of exposure. Importantly, their basal expression level was slightly but significantly affected in vivo by patients' cancer condition. Moreover, lipopolysaccharide stimulation of blood irradiated ex vivo led to a significant modification of CCNG1 and PHPT1 transcriptional response in a dose- and time-dependent manner with opposite regulatory effects. Curcumin also affected CCNG1 and PHPT1 transcriptional response counteracting some of the radiation induction. No differences were observed based on sex. Dose estimations calculated using linear regression were affected by lipopolysaccharide and curcumin. In conclusion, several confounding factors tested in this study can indeed modulate the transcriptional response of CCNG1 and PHPT1 and consequently can affect radiation exposure dose estimations but not to a level which should prevent the biomarkers' use for triage purposes.
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Affiliation(s)
- Lourdes Cruz-Garcia
- Radiation Effects Department, Centre for Radiation, Chemical & Environmental Hazards Public Health England Chilton, Didcot, Oxfordshire OX11 ORQ United Kingdom
| | - Grainne O’Brien
- Radiation Effects Department, Centre for Radiation, Chemical & Environmental Hazards Public Health England Chilton, Didcot, Oxfordshire OX11 ORQ United Kingdom
| | - Ellen Donovan
- Centre for Vision Speech and Signal Processing, University of Surrey, Guildford, GU2 7TE, UK
| | - Lone Gothard
- Institute for Cancer Research/Royal Marsden NHS Foundation Trust, Downs Road, Sutton SM2 5PT, UK
| | - Sue Boyle
- Institute for Cancer Research/Royal Marsden NHS Foundation Trust, Downs Road, Sutton SM2 5PT, UK
| | - Antoine Laval
- CEA, DRF, BIG-LCBM, F-38000 Grenoble, France. CNRS, LCBM, UMR 5249, F-38000 Grenoble, France.Univ. Grenoble Alpes, BIG-LCBM, F-38000 Grenoble, France
| | - Isabelle Testard
- CEA, DRF, BIG-LCBM, F-38000 Grenoble, France. CNRS, LCBM, UMR 5249, F-38000 Grenoble, France.Univ. Grenoble Alpes, BIG-LCBM, F-38000 Grenoble, France
| | - Lucyna Ponge
- Maria Sklodowska-Curie Institute – Oncology Center, Gliwice Branch, 44-101 Gliwice, Poland
| | - Grzegorz Woźniak
- Maria Sklodowska-Curie Institute – Oncology Center, Gliwice Branch, 44-101 Gliwice, Poland
| | - Leszek Miszczyk
- Maria Sklodowska-Curie Institute – Oncology Center, Gliwice Branch, 44-101 Gliwice, Poland
| | - Serge M. Candéias
- CEA, DRF, BIG-LCBM, F-38000 Grenoble, France. CNRS, LCBM, UMR 5249, F-38000 Grenoble, France.Univ. Grenoble Alpes, BIG-LCBM, F-38000 Grenoble, France
| | - Elizabeth Ainsbury
- Radiation Effects Department, Centre for Radiation, Chemical & Environmental Hazards Public Health England Chilton, Didcot, Oxfordshire OX11 ORQ United Kingdom
| | - Piotr Widlak
- Maria Sklodowska-Curie Institute – Oncology Center, Gliwice Branch, 44-101 Gliwice, Poland
| | - Navita Somaiah
- Institute for Cancer Research/Royal Marsden NHS Foundation Trust, Downs Road, Sutton SM2 5PT, UK
| | - Christophe Badie
- Radiation Effects Department, Centre for Radiation, Chemical & Environmental Hazards Public Health England Chilton, Didcot, Oxfordshire OX11 ORQ United Kingdom
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65
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Agbenyegah S, Abend M, Atkinson MJ, Combs SE, Trott KR, Port M, Majewski M. Impact of Inter-Individual Variance in the Expression of a Radiation-Responsive Gene Panel Used for Triage. Radiat Res 2018; 190:226-235. [PMID: 29923790 DOI: 10.1667/rr15013.1] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
In previous studies we determined a gene expression signature in baboons for predicting the severity of hematological acute radiation syndrome. We subsequently validated a set of eight of these genes in leukemia patients undergoing total-body irradiation. In the current study, we addressed the effect of intra-individual variability on the basal level of expression of those eight radiation-responsive genes identified previously, by examining baseline levels in 200 unexposed healthy human donors (122 males and 88 females with an average age of 46 years) using real-time PCR. In addition to the eight candidate genes ( DAGLA, WNT3, CD177, PLA2G16, WLS, POU2AF1, STAT4 and PRF1), we examined two more genes ( FDXR and DDB2) widely used in ex vivo whole blood experiments. Although significant sex- (seven genes) and age-dependent (two genes) differences in expression were found, the fold changes ranged only between 1.1-1.6. These were well within the twofold differences in gene expression generally considered to represent control values. Age and sex contributed less than 20-30% to the complete inter-individual variance, which is calculated as the fold change between the lowest (reference) and the highest Ct value minimum-maximum fold change (min-max FC). Min-max FCs ranging between 10-17 were observed for most genes; however, for three genes, min-max FCs of complete inter-individual variance were found to be 37.1 ( WNT3), 51.4 ( WLS) and 1,627.8 ( CD177). In addition, to determine whether discrimination between healthy and diseased baboons might be altered by replacing the published gene expression data of the 18 healthy baboons with that of the 200 healthy humans, we employed logistic regression analysis and calculated the area under the receiver operating characteristic (ROC) curve. The additional inter-individual variance of the human data set had either no impact or marginal impact on the ROC area, since up to 32-fold change gene expression differences between healthy and diseased baboons were observed.
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Affiliation(s)
- S Agbenyegah
- a Department of Radiation Oncology, Technical University of Munich, Munich, Germany
| | - M Abend
- b Bundeswehr Institute of Radiobiology, Munich, Germany
| | - M J Atkinson
- c Institute of Radiation Biology, Helmholtz Zentrum München, Neuherberg, Germany
| | - S E Combs
- a Department of Radiation Oncology, Technical University of Munich, Munich, Germany.,d Institute of Innovative Radiotherapy, Helmholtz Zentrum München, Oberschleissheim, Germany
| | - K R Trott
- a Department of Radiation Oncology, Technical University of Munich, Munich, Germany
| | - M Port
- b Bundeswehr Institute of Radiobiology, Munich, Germany
| | - M Majewski
- b Bundeswehr Institute of Radiobiology, Munich, Germany
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Lacombe J, Sima C, Amundson SA, Zenhausern F. Candidate gene biodosimetry markers of exposure to external ionizing radiation in human blood: A systematic review. PLoS One 2018; 13:e0198851. [PMID: 29879226 PMCID: PMC5991767 DOI: 10.1371/journal.pone.0198851] [Citation(s) in RCA: 54] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2018] [Accepted: 05/25/2018] [Indexed: 12/22/2022] Open
Abstract
Purpose To compile a list of genes that have been reported to be affected by external ionizing radiation (IR) and to assess their performance as candidate biomarkers for individual human radiation dosimetry. Methods Eligible studies were identified through extensive searches of the online databases from 1978 to 2017. Original English-language publications of microarray studies assessing radiation-induced changes in gene expression levels in human blood after external IR were included. Genes identified in at least half of the selected studies were retained for bio-statistical analysis in order to evaluate their diagnostic ability. Results 24 studies met the criteria and were included in this study. Radiation-induced expression of 10,170 unique genes was identified and the 31 genes that have been identified in at least 50% of studies (12/24 studies) were selected for diagnostic power analysis. Twenty-seven genes showed a significant Spearman’s correlation with radiation dose. Individually, TNFSF4, FDXR, MYC, ZMAT3 and GADD45A provided the best discrimination of radiation dose < 2 Gy and dose ≥ 2 Gy according to according to their maximized Youden’s index (0.67, 0.55, 0.55, 0.55 and 0.53 respectively). Moreover, 12 combinations of three genes display an area under the Receiver Operating Curve (ROC) curve (AUC) = 1 reinforcing the concept of biomarker combinations instead of looking for an ideal and unique biomarker. Conclusion Gene expression is a promising approach for radiation dosimetry assessment. A list of robust candidate biomarkers has been identified from analysis of the studies published to date, confirming for example the potential of well-known genes such as FDXR and TNFSF4 or highlighting other promising gene such as ZMAT3. However, heterogeneity in protocols and analysis methods will require additional studies to confirm these results.
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Affiliation(s)
- Jerome Lacombe
- Center for Applied NanoBioscience and Medicine, University of Arizona, Phoenix, Arizona, United States of America
- * E-mail:
| | - Chao Sima
- Center for Bioinformatics and Genomic Systems Engineering, Texas A&M Engineering Experiment Station, College Station, TX, United States of America
| | - Sally A. Amundson
- Center for Radiological Research, Columbia University Medical Center, New York, NY, United States of America
| | - Frederic Zenhausern
- Center for Applied NanoBioscience and Medicine, University of Arizona, Phoenix, Arizona, United States of America
- Honor Health Research Institute, Scottsdale, Arizona, United States of America
- Translational Genomics Research Institute, Phoenix, Arizona, United States of America
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67
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Tichy A, Kabacik S, O’Brien G, Pejchal J, Sinkorova Z, Kmochova A, Sirak I, Malkova A, Beltran CG, Gonzalez JR, Grepl J, Majewski M, Ainsbury E, Zarybnicka L, Vachelova J, Zavrelova A, Davidkova M, Markova Stastna M, Abend M, Pernot E, Cardis E, Badie C. The first in vivo multiparametric comparison of different radiation exposure biomarkers in human blood. PLoS One 2018; 13:e0193412. [PMID: 29474504 PMCID: PMC5825084 DOI: 10.1371/journal.pone.0193412] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2017] [Accepted: 02/10/2018] [Indexed: 11/18/2022] Open
Abstract
The increasing risk of acute large-scale radiological/nuclear exposures of population underlines the necessity of developing new, rapid and high throughput biodosimetric tools for estimation of received dose and initial triage. We aimed to compare the induction and persistence of different radiation exposure biomarkers in human peripheral blood in vivo. Blood samples of patients with indicated radiotherapy (RT) undergoing partial body irradiation (PBI) were obtained soon before the first treatment and then after 24 h, 48 h, and 5 weeks; i.e. after 1, 2, and 25 fractionated RT procedures. We collected circulating peripheral blood from ten patients with tumor of endometrium (1.8 Gy per fraction) and eight patients with tumor of head and neck (2.0–2.121 Gy per fraction). Incidence of dicentrics and micronuclei was monitored as well as determination of apoptosis and the transcription level of selected radiation-responsive genes. Since mitochondrial DNA (mtDNA) has been reported to be a potential indicator of radiation damage in vitro, we also assessed mtDNA content and deletions by novel multiplex quantitative PCR. Cytogenetic data confirmed linear dose-dependent increase in dicentrics (p < 0.01) and micronuclei (p < 0.001) in peripheral blood mononuclear cells after PBI. Significant up-regulations of five previously identified transcriptional biomarkers of radiation exposure (PHPT1, CCNG1, CDKN1A, GADD45, and SESN1) were also found (p < 0.01). No statistical change in mtDNA deletion levels was detected; however, our data indicate that the total mtDNA content decreased with increasing number of RT fractions. Interestingly, the number of micronuclei appears to correlate with late radiation toxicity (r2 = 0.9025) in endometrial patients suggesting the possibility of predicting the severity of RT-related toxicity by monitoring this parameter. Overall, these data represent, to our best knowledge, the first study providing a multiparametric comparison of radiation biomarkers in human blood in vivo, which have potential for improving biological dosimetry.
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Affiliation(s)
- Ales Tichy
- Department of Radiobiology, Faculty of Military Health Sciences, Hradec Králové, University of Defence in Brno, Hradec Králové, Czech Republic
- Biomedical Research Centre, University Hospital, Hradec Králové, Czech Republic
| | - Sylwia Kabacik
- Cancer Mechanisms and Biomarkers group, Radiation Effects Department, Centre for Radiation, Chemical and Environmental Hazards, Public Health of England, Didcot, United Kingdom
| | - Grainne O’Brien
- Cancer Mechanisms and Biomarkers group, Radiation Effects Department, Centre for Radiation, Chemical and Environmental Hazards, Public Health of England, Didcot, United Kingdom
| | - Jaroslav Pejchal
- Department of Toxicology, Faculty of Military Health Sciences, Hradec Králové, University of Defence in Brno, Czech Republic
| | - Zuzana Sinkorova
- Department of Radiobiology, Faculty of Military Health Sciences, Hradec Králové, University of Defence in Brno, Hradec Králové, Czech Republic
| | - Adela Kmochova
- Department of Radiobiology, Faculty of Military Health Sciences, Hradec Králové, University of Defence in Brno, Hradec Králové, Czech Republic
| | - Igor Sirak
- Department of Oncology and Radiotherapy and 4th Department of Internal Medicine - Hematology, University Hospital, Hradec Králové, Czech Republic
| | - Andrea Malkova
- Department of Hygiene and Preventive Medicine, Faculty of Medicine in Hradec Králové, Charles University in Prague, Hradec Králové, Czech Republic
| | | | | | - Jakub Grepl
- Department of Radiobiology, Faculty of Military Health Sciences, Hradec Králové, University of Defence in Brno, Hradec Králové, Czech Republic
- Department of Oncology and Radiotherapy and 4th Department of Internal Medicine - Hematology, University Hospital, Hradec Králové, Czech Republic
| | | | - Elizabeth Ainsbury
- Cancer Mechanisms and Biomarkers group, Radiation Effects Department, Centre for Radiation, Chemical and Environmental Hazards, Public Health of England, Didcot, United Kingdom
| | - Lenka Zarybnicka
- Department of Radiobiology, Faculty of Military Health Sciences, Hradec Králové, University of Defence in Brno, Hradec Králové, Czech Republic
| | - Jana Vachelova
- Department of Radiation Dosimetry, Nuclear Physics Institute of the Czech Academy of Sciences, Prague, Czech Republic
| | - Alzbeta Zavrelova
- Department of Oncology and Radiotherapy and 4th Department of Internal Medicine - Hematology, University Hospital, Hradec Králové, Czech Republic
| | - Marie Davidkova
- Department of Radiation Dosimetry, Nuclear Physics Institute of the Czech Academy of Sciences, Prague, Czech Republic
| | | | - Michael Abend
- Bundeswehr Institute of Radiobiology, Munich, Germany
| | | | | | - Christophe Badie
- Cancer Mechanisms and Biomarkers group, Radiation Effects Department, Centre for Radiation, Chemical and Environmental Hazards, Public Health of England, Didcot, United Kingdom
- * E-mail:
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68
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Port M, Majewski M, Herodin F, Valente M, Drouet M, Forcheron F, Tichy A, Sirak I, Zavrelova A, Malkova A, Becker BV, Veit DA, Waldeck S, Badie C, O'Brien G, Christiansen H, Wichmann J, Eder M, Beutel G, Vachelova J, Doucha-Senf S, Abend M. Validating Baboon Ex Vivo and In Vivo Radiation-Related Gene Expression with Corresponding Human Data. Radiat Res 2018; 189:389-398. [PMID: 29373091 DOI: 10.1667/rr14958.1] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
The research for high-throughput diagnostic tests for victims of radio/nuclear incidents remains ongoing. In this context, we have previously identified candidate genes that predict risk of late-occurring hematologic acute radiation syndrome (HARS) in a baboon model. The goal of the current study was to validate these genes after radiation exposure in humans. We also examined ex vivo relative to in vivo measurements in both species and describe dose-response relationships. Eighteen baboons were irradiated in vivo to simulate different patterns of partial- or total-body irradiation (TBI), corresponding to an equivalent dose of 2.5 or 5 Sv. Human in vivo blood samples were obtained from patients exposed to different dose ranges: diagnostic computerized tomography (CT; 0.004-0.018 Sv); radiotherapy for prostate cancer (0.25-0.3 Sv); and TBI of leukemia patients (2 × 1.5 or 2 × 2 Sv, five patients each). Peripheral whole blood of another five baboons and human samples from five healthy donors were cultivated ex vivo and irradiated with 0-4 Sv. RNA was isolated pairwise before and 24 h after irradiation and converted into cDNA. Gene expression of six promising candidate genes found previously by us in a baboon model ( WNT3, POU2AF1, CCR7, ARG2, CD177, WLS), as well as three genes commonly used in ex vivo whole blood experiments ( FDXR, PCNA, DDB2) was measured using qRT-PCR. We confirmed the six baboon candidate genes in leukemia patients. However, expression for the candidate gene FDXR showed an inverse relationship, as it was downregulated in baboons and upregulated in human samples. Comparisons among the in vivo and ex vivo experiments revealed the same pattern in both species and indicated peripheral blood cells to represent the radiation-responsive targets causing WNT3 and POU2AF1 gene expression changes. CCR7, ARG2, CD177 and WLS appeared to be altered due to radiation-responsive targets other than the whole blood cells. Linear dose-response relationships of FDXR, WNT3 and POU2AF1 using human ex vivo samples corresponded with human in vivo samples, suggesting that ex vivo models for in vivo dose estimates can be used over a wide dose range (0.001-5 Sv for POU2AF1). In summary, we validated six baboon candidate genes in humans, but the FDXR measurements underscored the importance of independent assessments even when candidates from animal models have striking gene sequence homology to humans. Since whole blood cells represented the same radiation-responsive targets for FDXR, WNT3 and POU2AF1 gene expression changes, ex vivo cell culture models can be utilized for in vivo dose estimates over a dose range covering up to 3.5 log scales. These findings might be a step forward in the development of a gene expression-based high-throughput diagnostic test for populations involved in large-scale radio/nuclear incidents.
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Affiliation(s)
- M Port
- a Bundeswehr Institute of Radiobiology, Munich, Germany
| | - M Majewski
- a Bundeswehr Institute of Radiobiology, Munich, Germany
| | - F Herodin
- b Institut de Recherche Biomedicale des Armees, Bretigny-sur-Orge, France
| | - M Valente
- b Institut de Recherche Biomedicale des Armees, Bretigny-sur-Orge, France
| | - M Drouet
- b Institut de Recherche Biomedicale des Armees, Bretigny-sur-Orge, France
| | - F Forcheron
- b Institut de Recherche Biomedicale des Armees, Bretigny-sur-Orge, France
| | - A Tichy
- c Departments of Radiobiology, Faculty of Military Health Sciences, University of Defence, Brno and Biomedical Research Centre
| | - I Sirak
- d Oncology and Radiotherapy, and 4th Department of Internal Medicine - Hematology, University Hospital Hradec Králové, Hradec Králové, Czech Republic
| | - A Zavrelova
- d Oncology and Radiotherapy, and 4th Department of Internal Medicine - Hematology, University Hospital Hradec Králové, Hradec Králové, Czech Republic
| | - A Malkova
- e Department of Hygiene and Preventive Medicine, Faculty of Medicine, Charles University, Hradec Králové, Czech Republic
| | - B V Becker
- a Bundeswehr Institute of Radiobiology, Munich, Germany
| | - D A Veit
- f Bundeswehr Central Hospital, Department of Radiology and Neuroradiology, Koblenz, Germany
| | - S Waldeck
- f Bundeswehr Central Hospital, Department of Radiology and Neuroradiology, Koblenz, Germany
| | - C Badie
- g Cancer Mechanisms and Biomarkers Group, Radiation Effects Department, Centre for Radiation, Chemical and Environmental Hazards, Public Health England, Chilton, United Kingdom
| | - G O'Brien
- g Cancer Mechanisms and Biomarkers Group, Radiation Effects Department, Centre for Radiation, Chemical and Environmental Hazards, Public Health England, Chilton, United Kingdom
| | | | | | - M Eder
- i Hematology, Hemostasis, Oncology and Stem Cell Transplantation, Hannover Medical School, Hannover, Germany
| | - G Beutel
- i Hematology, Hemostasis, Oncology and Stem Cell Transplantation, Hannover Medical School, Hannover, Germany
| | - J Vachelova
- j Department of Radiation Dosimetry, Nuclear Physics Institute of the Czech Academy of Sciences, Řež, Czech Republic
| | - S Doucha-Senf
- a Bundeswehr Institute of Radiobiology, Munich, Germany
| | - M Abend
- a Bundeswehr Institute of Radiobiology, Munich, Germany
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Whole thorax irradiation of non-human primates induces persistent nuclear damage and gene expression changes in peripheral blood cells. PLoS One 2018; 13:e0191402. [PMID: 29351567 PMCID: PMC5774773 DOI: 10.1371/journal.pone.0191402] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2017] [Accepted: 01/04/2018] [Indexed: 12/16/2022] Open
Abstract
We investigated the cytogenetic and gene expression responses of peripheral blood cells of non-human primates (NHP, Macaca mulatta) that were whole-thorax irradiated with a single dose of 10 Gy. In this model, partial irradiation of NHPs in the thoracic region (Whole Thorax Lung Irradiation, WTLI) allows the study of late radiation-induced lung injury, while avoiding acute radiation syndromes related to hematopoietic and gastrointestinal injury. A transient drop in circulating lymphocytes and platelets was seen by 9 days, followed by elevations in respiratory rate, circulating neutrophils, lymphocytes, and monocytes at 60-100 days, corresponding to computed tomography (CT) and histologic evidence of pneumonitis, and elective euthanasia of four animals. To evaluate long-term DNA damage in NHP peripheral blood lymphocytes after 10 Gy WTLI, we used the cytokinesis-block micronucleus (CBMN) assay to measure chromosomal aberrations as post-mitotic micronuclei in blood samples collected up to 8 months after irradiation. Regression analysis showed significant induction of micronuclei in NHP blood cells that persisted with a gradual decline over the 8-month study period, suggesting long-term DNA damage in blood lymphocytes after WTLI. We also report transcriptomic changes in blood up to 30 days after WTLI. We isolated total RNA from peripheral blood at 3 days before and then at 2, 5 and 30 days after irradiation. We identified 1187 transcripts that were significantly changed across the 30-day time course. From changes in gene expression, we identified biological processes related to immune responses, which persisted across the 30-day study. Response to oxygen-containing compounds and bacteria were implicated by gene-expression changes at the earliest day 2 and latest, day 30 time-points. Gene expression changes suggest a persistent altered state of the immune system, specifically response to infection, for at least a month after WTLI.
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70
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Bahreyni-Toossi MT, Vosoughi H, Azimian H, Rezaei AR, Momennezhad M. In vivo Exposure Effects of 99mTc-methoxyisobutylisonitrile on the FDXR and XPA Genes Expression in Human Peripheral Blood Lymphocytes. ASIA OCEANIA JOURNAL OF NUCLEAR MEDICINE & BIOLOGY 2018; 6:32-40. [PMID: 29333465 PMCID: PMC5765331 DOI: 10.22038/aojnmb.2017.9678] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
Objective(s): In recent years, the application of radiopharmaceuticals in nuclear medicine has increased substantially. Following the diagnostic procedures performed in nuclear medicine departments, such as myocardial perfusion imaging, patients generally receive considerable doses of radiation. Normally, radiation-induced DNA damages are expected following exposure to a low-dose ionizing radiation. In order to detect molecular changes, high-sensitivity techniques must be utilized. The aim of this study was to assess the effect of a low-dose (below 10 mSv) gamma ray on gene expression using quantitative real-time polymerase chain reaction (qRT-PCR). Methods: Blood samples were obtained from 20 volunteer patients who underwent myocardial perfusion imaging. They were given various doses of Technetium-99m methoxyisobutylisonitrile (99mTc-MIBI). After that, peripheral blood mononuclear cells (PBMNs) were derived, and then total RNA was extracted and reverse-transcribed to cDNA. Finally, the expression levels of xeroderma pigmentosum complementation group-A (XPA) and ferredoxin reductase (FDXR) genes were determinded through qRT-PCR technique using SYBR Green. Results: XPA and FDXR expression levels were obtained following a very low-dose ionizing radiation. A significant up-regulation of both genes was observed, and the gene expression level of each individual patient was different. If differences in the administered activity and radiosensitivity are taken into account, the observed differences could be justified. Furthermore, gender and age did not play a significant role in the expression levels of the genes under study. Conclusion: The up-regulation of FDXR after irradiation revealed the high-sensitivity level of this gene; therefore, it could be used as an appropriate biomarker for biological dosimetry. On the other hand, the up-regulation of XPA is an indication of DNA repair following radiation exposure. According to linear no-threshold model (LNT) and the results obtained from this study, a very low dose of ionizing radiation could bring about adverse biological effects at molecular level in the irradiated person.
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Affiliation(s)
| | - Habibeh Vosoughi
- Medical Physics Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Hosein Azimian
- Medical Physics Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Abdul Rahim Rezaei
- Immunology Research Center, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Mehdi Momennezhad
- Nuclear Medicine Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
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71
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O'Brien G, Cruz-Garcia L, Majewski M, Grepl J, Abend M, Port M, Tichý A, Sirak I, Malkova A, Donovan E, Gothard L, Boyle S, Somaiah N, Ainsbury E, Ponge L, Slosarek K, Miszczyk L, Widlak P, Green E, Patel N, Kudari M, Gleeson F, Vinnikov V, Starenkiy V, Artiukh S, Vasyliev L, Zaman A, Badie C. FDXR is a biomarker of radiation exposure in vivo. Sci Rep 2018; 8:684. [PMID: 29330481 PMCID: PMC5766591 DOI: 10.1038/s41598-017-19043-w] [Citation(s) in RCA: 79] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2017] [Accepted: 12/20/2017] [Indexed: 11/29/2022] Open
Abstract
Previous investigations in gene expression changes in blood after radiation exposure have highlighted its potential to provide biomarkers of exposure. Here, FDXR transcriptional changes in blood were investigated in humans undergoing a range of external radiation exposure procedures covering several orders of magnitude (cardiac fluoroscopy, diagnostic computed tomography (CT)) and treatments (total body and local radiotherapy). Moreover, a method was developed to assess the dose to the blood using physical exposure parameters. FDXR expression was significantly up-regulated 24 hr after radiotherapy in most patients and continuously during the fractionated treatment. Significance was reached even after diagnostic CT 2 hours post-exposure. We further showed that no significant differences in expression were found between ex vivo and in vivo samples from the same patients. Moreover, potential confounding factors such as gender, infection status and anti-oxidants only affect moderately FDXR transcription. Finally, we provided a first in vivo dose-response showing dose-dependency even for very low doses or partial body exposure showing good correlation between physically and biologically assessed doses. In conclusion, we report the remarkable responsiveness of FDXR to ionising radiation at the transcriptional level which, when measured in the right time window, provides accurate in vivo dose estimates.
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Affiliation(s)
- Gráinne O'Brien
- Centre for Radiation, Chemical and Environmental Hazards, Public Health England, Oxfordshire, United Kingdom
| | - Lourdes Cruz-Garcia
- Centre for Radiation, Chemical and Environmental Hazards, Public Health England, Oxfordshire, United Kingdom
| | | | - Jakub Grepl
- Department of Radiobiology, Faculty of Military Health Sciences in Hradec Králové, University of Defence in Brno, Hradec Králové, Czech Republic.,Biomedical Research Centre, Hradec Králové University Hospital, Hradec Králové, Czech Republic
| | - Michael Abend
- Bundeswehr Institute of Radiobiology, Munich, Germany
| | - Matthias Port
- Bundeswehr Institute of Radiobiology, Munich, Germany
| | - Aleš Tichý
- Department of Radiobiology, Faculty of Military Health Sciences in Hradec Králové, University of Defence in Brno, Hradec Králové, Czech Republic.,Biomedical Research Centre, Hradec Králové University Hospital, Hradec Králové, Czech Republic
| | - Igor Sirak
- Department of Oncology & Radiotherapy and 4th Department of Internal Medicine - Hematology, University Hospital, Hradec Králové, Czech Republic
| | - Andrea Malkova
- Department of Hygiene and Preventive Medicine, Faculty of Medicine in Hradec Králové, Charles University, Hradec Králové, Czech Republic
| | - Ellen Donovan
- Centre for Vision, Speech and Signal Processing, University of Surrey, Guildford, GU2 7TE, United Kingdom
| | - Lone Gothard
- Institute of Cancer Research/Royal Marsden NHS Foundation Trust, Downs Road, Sutton, SM2 5PT, United Kingdom
| | - Sue Boyle
- Institute of Cancer Research/Royal Marsden NHS Foundation Trust, Downs Road, Sutton, SM2 5PT, United Kingdom
| | - Navita Somaiah
- Institute of Cancer Research/Royal Marsden NHS Foundation Trust, Downs Road, Sutton, SM2 5PT, United Kingdom
| | - Elizabeth Ainsbury
- Centre for Radiation, Chemical and Environmental Hazards, Public Health England, Oxfordshire, United Kingdom
| | - Lucyna Ponge
- Maria Sklodowska-Curie Institute - Oncology Center, Gliwice Branch, Gliwice, Poland
| | - Krzysztof Slosarek
- Maria Sklodowska-Curie Institute - Oncology Center, Gliwice Branch, Gliwice, Poland
| | - Leszek Miszczyk
- Maria Sklodowska-Curie Institute - Oncology Center, Gliwice Branch, Gliwice, Poland
| | - Piotr Widlak
- Maria Sklodowska-Curie Institute - Oncology Center, Gliwice Branch, Gliwice, Poland
| | - Edward Green
- Department of Radiology, Churchill Hospital, Oxford, United Kingdom
| | - Neel Patel
- Department of Radiology, Churchill Hospital, Oxford, United Kingdom
| | - Mahesh Kudari
- Department of Radiology, Churchill Hospital, Oxford, United Kingdom
| | - Fergus Gleeson
- Department of Radiology, Churchill Hospital, Oxford, United Kingdom
| | - Volodymyr Vinnikov
- Grigoriev Institute for Medical Radiology, National Academy of Medical Science, Kharkiv, Ukraine
| | - Viktor Starenkiy
- Grigoriev Institute for Medical Radiology, National Academy of Medical Science, Kharkiv, Ukraine
| | - Sergii Artiukh
- Grigoriev Institute for Medical Radiology, National Academy of Medical Science, Kharkiv, Ukraine
| | - Leonid Vasyliev
- Grigoriev Institute for Medical Radiology, National Academy of Medical Science, Kharkiv, Ukraine
| | - Azfar Zaman
- Department of Cardiology, Freeman Hospital and Institute of Cellular Medicine, Newcastle University, Newcastle-upon-Tyne, Newcastle, United Kingdom
| | - Christophe Badie
- Centre for Radiation, Chemical and Environmental Hazards, Public Health England, Oxfordshire, United Kingdom.
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72
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Manning G, Tichý A, Sirák I, Badie C. Radiotherapy-Associated Long-term Modification of Expression of the Inflammatory Biomarker Genes ARG1, BCL2L1, and MYC. Front Immunol 2017; 8:412. [PMID: 28443095 PMCID: PMC5385838 DOI: 10.3389/fimmu.2017.00412] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2016] [Accepted: 03/23/2017] [Indexed: 12/14/2022] Open
Abstract
Ionizing radiation (IR) exposure of cells in vitro and in vivo triggers a complex cellular response among which modifications of gene expression have been consistently reported. Nevertheless, little is currently known about the transcriptionally responsive genes which play a role in the inflammation response. In order to improve our understanding of such transcriptional response to radiation in vivo, we simultaneously monitored the expression of 249 genes associated with the inflammation response over the course of the radiotherapy treatment in blood of patients treated for endometrial or head and neck cancer. We have identified genes whose transcriptional expression is either upregulated (ARG1, BCL2L1) or downregulated (MYC) several fold in vivo. These modifications were consistently detected across patients and further confirmed by quantitative real-time polymerase chain reaction (QRT-PCR); they were specifically significant toward the end of the radiotherapy treatment, 5 weeks following the first radiation fraction and more pronounced in endometrial patients (respectively, 2.9, 4.1, and 1.8 times). Importantly, in an attempt to correlate expression levels with normal tissue reaction to IR, we also identified three other genes CD40, OAS2, and CXCR1 whose expression level fluctuations during radiotherapy were more pronounced in patients developing late normal tissue responses to curative radiotherapy after the end of the radiotherapy treatment. Overall, we identified inflammation-associated genes which are promising biomarkers of IR exposure and susceptibility to radiation-induced toxicity.
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Affiliation(s)
- Grainne Manning
- Cancer Mechanisms and Biomarkers Group, Centre for Radiation, Chemical and Environmental Hazards, Radiation Effects Department, Public Health England, Oxfordshire, UK
| | - Aleš Tichý
- Department of Radiobiology, Faculty of Military Health Sciences in Hradec Králové, University of Defence, Brno, Czechia.,Biomedical Research Centre, University Hospital Hradec Králové, Hradec Králové, Czechia
| | - Igor Sirák
- Clinic of Oncology and Radiotherapy, University Hospital Hradec Králové, Hradec Králové, Czechia
| | - Christophe Badie
- Cancer Mechanisms and Biomarkers Group, Centre for Radiation, Chemical and Environmental Hazards, Radiation Effects Department, Public Health England, Oxfordshire, UK
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73
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Saberi A, Khodamoradi E, Tahmasebi Birgani MJ, Makvandi M, Noori B. Dose-Response Curves of the FDXR and RAD51 Genes with 6 and 18 MV Beam Energies in Human Peripheral Blood Lymphocytes. IRANIAN RED CRESCENT MEDICAL JOURNAL 2017; 18:e32013. [PMID: 28191342 PMCID: PMC5292577 DOI: 10.5812/ircmj.32013] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/01/2015] [Revised: 09/17/2015] [Accepted: 10/07/2015] [Indexed: 12/30/2022]
Abstract
BACKGROUND Rapid dose assessment using biological dosimetry methods is essential to increase the chance of survival of exposed individuals in radiation accidents. OBJECTIVES We compared the expression levels of the FDXR and RAD51 genes at 6 and 18 MV beam energies in human peripheral blood lymphocytes. The results of our study can be used to analyze radiation energy in biological dosimetry. METHODS For this in vitro experimental study, from 36 students in the medical physics and virology departments, seven voluntary, healthy, non-smoking male blood donors of Khuzestan ethnicity with no history of exposure to ionization radiation were selected using simple randomized sampling. Sixty-three peripheral blood samples were collected from the seven healthy donors. Human peripheral blood was then exposed to doses of 0, 0.2, 0.5, 2, and 4 Gy with 6 and 18 MV beam energies in a Linac Varian 2100C/D (Varian, USA) at Golestan hospital in Ahvaz, Iran. After RNA extraction and cDNA synthesis, the expression levels of FDXR and RAD51 were determined 24 hours post-irradiation using the gel-purified reverse transcription polymerase chain reaction (RT-PCR) technique and TaqMan strategy (by real-time PCR). RESULTS The expression level of FDXR gene was significantly increased at doses of 2 Gy and 4 Gy in the 6 - 18 MV energy range (P < 0.001 and P < 0.008, respectively). The medians with interquartile ranges (IQRs) of the copy numbers of the FDXR gene at 2 Gy and 4 Gy doses under 6 and 18 MV beam energies were 2393.59 (1798.21, 2575.37) and 2983.00 (2199.48, 3643.82) and 3779.12 (3051.40, 5120.74) and 5051.26 (4704.83, 5859.17), respectively. However, RAD51 gene expression levels only showed a significant difference between samples at a dose of 2 Gy with 6 and 18 MV beam energies, respectively (P < 0.040). The medians with IQRs of the copy numbers of the RAD51 gene were 2092.77 (1535.78, 2705.61) and 3412.57 (2979.72, 4530.61) at beam energies of 6 and 18 MV, respectively. CONCLUSIONS The data suggest that the expression analysis of the FDXR gene, contrary to that of the RAD51 gene, may be suitable for assessment of high-energy X-ray. In addition, RAD51 is not a suitable gene for dose assessment in biological dosimetry.
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Affiliation(s)
- Alihossein Saberi
- Department of Medical Genetics, Faculty of Medicine, Ahvaz Jundishapour University of Medical Sciences, Ahvaz, IR Iran
| | - Ehsan Khodamoradi
- Department of Radiology and Nuclear Medicine, Paramedical School, Kermanshah University of Medical Sciences, Kermanshah, IR Iran
- Corresponding Author: Ehsan Khodamoradi, Department of Radiology and Nuclear Medicine, Paramedical School, Kermanshah University of Medical Sciences, Kermanshah, IR Iran. E-mail:
| | - Mohammad Javad Tahmasebi Birgani
- Department of Radiology and Nuclear Medicine, Paramedical School, Kermanshah University of Medical Sciences, Kermanshah, IR Iran
| | - Manoochehr Makvandi
- Department of Virology, Faculty of Medicine, Ahvaz Jundishapour University of Medical Sciences, Ahvaz, IR Iran
| | - Bijan Noori
- Social Determinants of Health Research Center, Kurdistan University of Medical Sciences, Sanandaj, IR Iran
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74
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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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75
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Nishad S, Ghosh A. Gene expression of immediate early genes of AP-1 transcription factor in human peripheral blood mononuclear cells in response to ionizing radiation. RADIATION AND ENVIRONMENTAL BIOPHYSICS 2016; 55:431-440. [PMID: 27586508 DOI: 10.1007/s00411-016-0662-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/16/2015] [Accepted: 08/18/2016] [Indexed: 06/06/2023]
Abstract
Ionizing radiation (IR) is considered ubiquitous in nature. The immediate early genes are considered the earliest nuclear targets of IR and are induced in the absence of de novo protein synthesis. Many of these genes encode transcription factors that constitute the first step in signal transduction to couple cytoplasmic effects with long-term cellular response. In this paper, coordinated transcript response of fos and jun family members which constitute activator protein 1 transcription factor was studied in response to IR in human peripheral blood lymphocytes at the G0 stage. Gene expression was monitored 5 min, 1 h and 4 h post-irradiation with Co60 γ-rays (dose rate of 0.417 Gy/min) and compared with sham-irradiated controls. When gene expression was analyzed at the early time point of 5 min post-irradiation with 0.3 Gy, the studied samples showed two distinct trends. Six out of ten individuals (called 'Group I responders') showed transient, but significant up-regulation for fosB, fosL1, fosL2 and c-jun with an average fold change (FC) ≥1.5 as compared to sham-irradiated controls. The Students's t test p value for all four genes was ≤0.001, indicating strong up-regulation. The remaining four individuals (called Group II responders) showed down-regulation for these same four genes. The average FC with 0.3 Gy in Group II individuals was 0.53 ± 0.22 (p = 0.006) for fosB, 0.60 ± 0.14 (p = 0.001) for fosL1, 0.52 ± 0.16 (p = 0.001) for fosL2 and 0.59 ± 0.28 (p = 0.03) for c-jun. The two groups could be clearly distinguished at this dose/time point using principal component analysis. Both Group I and Group II responders did not show any change in expression for three genes (c-fos, junB and junD) as compared to sham-irradiated controls. Though a similar trend was seen 5 min post-irradiation with a relatively high dose of 1 Gy, the average FC was lower and change in gene expression was not statistically significant (at p < 0.05), except for the down-regulation at fosL2 for Group II individuals (mean FC = 0.70 ± 0.15, p = 0.008). Both groups of individuals did not show any differential change in expression (FC ~ 1.0) for most loci at the late time points of 1 and 4 h, neither with 0.3 Gy nor with 1 Gy.
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Affiliation(s)
- S Nishad
- Radiation Signaling Group, Radiation Biology and Health Sciences Division, Bio-Science Group, Bhabha Atomic Research Centre, Mumbai, 400 085, India
| | - Anu Ghosh
- Radiation Signaling Group, Radiation Biology and Health Sciences Division, Bio-Science Group, Bhabha Atomic Research Centre, Mumbai, 400 085, India.
- Homi Bhabha National Institute, Training School Complex, Anushakti Nagar, Mumbai, 400 094, India.
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76
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Badie C, Hess J, Zitzelsberger H, Kulka U. Established and Emerging Biomarkers of Radiation Exposure. Clin Oncol (R Coll Radiol) 2016; 28:619-21. [DOI: 10.1016/j.clon.2016.06.002] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2016] [Accepted: 06/02/2016] [Indexed: 10/21/2022]
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77
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Manning G, Macaeva E, Majewski M, Kriehuber R, Brzóska K, Abend M, Doucha-Senf S, Oskamp D, Strunz S, Quintens R, Port M, Badie C. Comparable dose estimates of blinded whole blood samples are obtained independently of culture conditions and analytical approaches. Second RENEB gene expression study. Int J Radiat Biol 2016; 93:87-98. [DOI: 10.1080/09553002.2016.1227105] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Grainne Manning
- Cancer Mechanisms and Biomarkers Group, Radiation Effects Department, Centre for Radiation, Chemical and Environmental Hazards, Public Health England, Chilton, UK
| | - Ellina Macaeva
- Radiobiology Unit, Institute Environment, Health and Safety, Belgian Nuclear Research Centre, Mol, Belgium
- Department of Molecular Biotechnology, Ghent University, Ghent, Belgium
| | | | - Ralf Kriehuber
- Radiation Biology Unit, Department of Safety and Radiation Protection, Forschungszentrum Jülich GmbH, Germany
| | - Kamil Brzóska
- Institute of Nuclear Chemistry and Technology, Centre for Radiobiology and Biological Dosimetry, Warsaw, Poland
| | - Michael Abend
- Bundeswehr Institute of Radiobiology, Munich, Germany
| | | | - Dominik Oskamp
- Radiation Biology Unit, Department of Safety and Radiation Protection, Forschungszentrum Jülich GmbH, Germany
| | - Sonja Strunz
- Institute of Genetics and Biometry, Leibniz Institute for Farm Animal Biology (FBN), Dummerstorf, Germany
| | - Roel Quintens
- Radiobiology Unit, Institute Environment, Health and Safety, Belgian Nuclear Research Centre, Mol, Belgium
| | - Matthias Port
- Radiobiology Unit, Institute Environment, Health and Safety, Belgian Nuclear Research Centre, Mol, Belgium
| | - Christophe Badie
- Cancer Mechanisms and Biomarkers Group, Radiation Effects Department, Centre for Radiation, Chemical and Environmental Hazards, Public Health England, Chilton, UK
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Edmondson DA, Karski EE, Kohlgruber A, Koneru H, Matthay KK, Allen S, Hartmann CL, Peterson LE, DuBois SG, Coleman MA. Transcript Analysis for Internal Biodosimetry Using Peripheral Blood from Neuroblastoma Patients Treated with (131)I-mIBG, a Targeted Radionuclide. Radiat Res 2016; 186:235-44. [PMID: 27556353 DOI: 10.1667/rr14263.1] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Calculating internal dose from therapeutic radionuclides currently relies on estimates made from multiple radiation exposure measurements, converted to absorbed dose in specific organs using the Medical Internal Radiation Dose (MIRD) schema. As an alternative biodosimetric approach, we utilized gene expression analysis of whole blood from patients receiving targeted radiotherapy. Collected blood from patients with relapsed or refractory neuroblastoma who received (131)I-labeled metaiodobenzylguanidine ((131)I-mIBG) at the University of California San Francisco (UCSF) was used to compare calculated internal dose with the modulation of chosen gene expression. A total of 40 patients, median age 9 years, had blood drawn at baseline, 72 and 96 h after (131)I-mIBG infusion. Whole-body absorbed dose was calculated for each patient based on the cumulated activity determined from injected mIBG activity and patient-specific time-activity curves combined with (131)I whole-body S factors. We then assessed transcripts that were the most significant for describing the mixed therapeutic treatments over time using real-time polymerase chain reaction (RT-PCR). Modulation was evaluated statistically using multiple regression analysis for data at 0, 72 and 96 h. A total of 10 genes were analyzed across 40 patients: CDKN1A; FDXR; GADD45A; BCLXL; STAT5B; BAX; BCL2; DDB2; XPC; and MDM2. Six genes were significantly modulated upon exposure to (131)I-mIBG at 72 h, as well as at 96 h. Four genes varied significantly with absorbed dose when controlling for time. A gene expression biodosimetry model was developed to predict absorbed dose based on modulation of gene transcripts within whole blood. Three transcripts explained over 98% of the variance in the modulation of gene expression over the 96 h (CDKN1A, BAX and DDB2). To our knowledge, this is a novel study, which uses whole blood collected from patients treated with a radiopharmaceutical, to characterize biomarkers that may be useful for biodosimetry. Our data indicate that transcripts, which have been previously identified as biomarkers of external exposures in ex vivo whole blood and in vivo radiotherapy patients, are also good early indicators of internal exposure. However, for internal sources of radiation, the biokinetics and physical decay of the radionuclide strongly influence the gene expression.
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Affiliation(s)
- David A Edmondson
- a School of Health Sciences, Purdue University, West Lafayette, Indiana 47907
| | - Erin E Karski
- b Department of Pediatrics, University of California San Francisco School of Medicine, San Francisco California 94143
| | - Ayano Kohlgruber
- c Lawrence Livermore National Laboratory, Livermore, California 94550
| | - Harsha Koneru
- c Lawrence Livermore National Laboratory, Livermore, California 94550
| | - Katherine K Matthay
- b Department of Pediatrics, University of California San Francisco School of Medicine, San Francisco California 94143
| | - Shelly Allen
- b Department of Pediatrics, University of California San Francisco School of Medicine, San Francisco California 94143
| | | | - Leif E Peterson
- d Center for Biostatistics, Houston Methodist Research Institute. Houston, Texas 77030; and
| | - Steven G DuBois
- b Department of Pediatrics, University of California San Francisco School of Medicine, San Francisco California 94143
| | - Matthew A Coleman
- c Lawrence Livermore National Laboratory, Livermore, California 94550;,e Department of Radiation Oncology, University of California Davis, School of Medicine, Davis, California 95817
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79
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Brooks AL, Hoel DG, Preston RJ. The role of dose rate in radiation cancer risk: evaluating the effect of dose rate at the molecular, cellular and tissue levels using key events in critical pathways following exposure to low LET radiation. Int J Radiat Biol 2016; 92:405-26. [PMID: 27266588 PMCID: PMC4975094 DOI: 10.1080/09553002.2016.1186301] [Citation(s) in RCA: 74] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2015] [Revised: 03/14/2016] [Accepted: 05/02/2016] [Indexed: 12/19/2022]
Abstract
PURPOSE This review evaluates the role of dose rate on cell and molecular responses. It focuses on the influence of dose rate on key events in critical pathways in the development of cancer. This approach is similar to that used by the U.S. EPA and others to evaluate risk from chemicals. It provides a mechanistic method to account for the influence of the dose rate from low-LET radiation, especially in the low-dose region on cancer risk assessment. Molecular, cellular, and tissues changes are observed in many key events and change as a function of dose rate. The magnitude and direction of change can be used to help establish an appropriate dose rate effectiveness factor (DREF). CONCLUSIONS Extensive data on key events suggest that exposure to low dose-rates are less effective in producing changes than high dose rates. Most of these data at the molecular and cellular level support a large (2-30) DREF. In addition, some evidence suggests that doses delivered at a low dose rate decrease damage to levels below that observed in the controls. However, there are some data human and mechanistic data that support a dose-rate effectiveness factor of 1. In summary, a review of the available molecular, cellular and tissue data indicates that not only is dose rate an important variable in understanding radiation risk but it also supports the selection of a DREF greater than one as currently recommended by ICRP ( 2007 ) and BEIR VII (NRC/NAS 2006 ).
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Affiliation(s)
- Antone L. Brooks
- Retired Professor, Environmental Science, Washington State University,
Richland,
Washington,
USA
| | - David G. Hoel
- Medical University of South Carolina, Epidemiology,
Charleston South Carolina,
USA
| | - R. Julian Preston
- US Environmental Protection Agency, National Health and Environmental Effects Research Laboratory (NHEERL) (MD B105-01), RTP,
USA
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80
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Rühm W, Azizova TV, Bouffler SD, Little MP, Shore RE, Walsh L, Woloschak GE. Dose-rate effects in radiation biology and radiation protection. Ann ICRP 2016; 45:262-279. [PMID: 26960819 DOI: 10.1177/0146645316629336] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Quantification of biological effects (cancer, other diseases, and cell damage) associated with exposure to ionising radiation has been a major issue for the International Commission on Radiological Protection (ICRP) since its foundation in 1928. While there is a wealth of information on the effects on human health for whole-body doses above approximately 100 mGy, the effects associated with doses below 100 mGy are still being investigated and debated intensively. The current radiological protection approach, proposed by ICRP for workers and the public, is largely based on risks obtained from high-dose and high-dose-rate studies, such as the Japanese Life Span Study on atomic bomb survivors. The risk coefficients obtained from these studies can be reduced by the dose and dose-rate effectiveness factor (DDREF) to account for the assumed lower effectiveness of low-dose and low-dose-rate exposures. The 2007 ICRP Recommendations continue to propose a value of 2 for DDREF, while other international organisations suggest either application of different values or abandonment of the factor. This paper summarises the current status of discussions, and highlights issues that are relevant to reassessing the magnitude and application of DDREF.
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Affiliation(s)
- W Rühm
- a Helmholtz Centre Munich, German Research Centre for Environmental Health, Department for Radiation Sciences, Institute of Radiation Protection, Ingolstädter Landstr. 1, 85764 Neuherberg, Germany
| | - T V Azizova
- b Southern Urals Biophysics Institute, Russian Federation
| | - S D Bouffler
- c Centre for Radiation, Chemical and Environmental Hazards, Public Health England, UK
| | - M P Little
- d Radiation Epidemiology Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, USA
| | - R E Shore
- e New York University School of Medicine, USA
| | - L Walsh
- f Federal Office for Radiation Protection, Germany
| | - G E Woloschak
- g Department of Radiation Oncology, Northwestern University, Feinberg School of Medicine, USA
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81
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Abend M, Badie C, Quintens R, Kriehuber R, Manning G, Macaeva E, Njima M, Oskamp D, Strunz S, Moertl S, Doucha-Senf S, Dahlke S, Menzel J, Port M. Examining Radiation-Induced In Vivo and In Vitro Gene Expression Changes of the Peripheral Blood in Different Laboratories for Biodosimetry Purposes: First RENEB Gene Expression Study. Radiat Res 2016; 185:109-23. [DOI: 10.1667/rr14221.1] [Citation(s) in RCA: 61] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Affiliation(s)
- M. Abend
- Bundeswehr Institute of Radiobiology, Munich, Germany
| | - C. Badie
- Cancer Group, Radiation Effects Department, Centre for Radiation, Chemical and Environmental Hazards, Public Health England, Chilton, United Kingdom
| | | | - R. Kriehuber
- Radiation Biology Unit, Department of Safety and Radiation Protection, Forschungszentrum Jülich GmbH, Jülich, Germany
| | - G. Manning
- Cancer Group, Radiation Effects Department, Centre for Radiation, Chemical and Environmental Hazards, Public Health England, Chilton, United Kingdom
| | | | - M. Njima
- Microbiology Units, Institute for Environment, Health and Safety, Belgian Nuclear Research Centre, Mol, Belgium
| | - D. Oskamp
- Radiation Biology Unit, Department of Safety and Radiation Protection, Forschungszentrum Jülich GmbH, Jülich, Germany
| | - S. Strunz
- Biomathematics and Bioinformatics Unit, Institute of Genetics and Biometry, Leibniz Institute for Farm Animal Biology (FBN), Dummerstorf, Germany
| | - S. Moertl
- Institute of Radiation Biology, Helmholtz Zentrum, Munich, Germany; and
| | | | - S. Dahlke
- Medizinische Hochschule Hannover, Hannover, Germany
| | - J. Menzel
- Medizinische Hochschule Hannover, Hannover, Germany
| | - M. Port
- Bundeswehr Institute of Radiobiology, Munich, Germany
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82
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Radiation-induced alternative transcription and splicing events and their applicability to practical biodosimetry. Sci Rep 2016; 6:19251. [PMID: 26763932 PMCID: PMC4725928 DOI: 10.1038/srep19251] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2015] [Accepted: 12/04/2015] [Indexed: 02/01/2023] Open
Abstract
Accurate assessment of the individual exposure dose based on easily accessible samples (e.g. blood) immediately following a radiological accident is crucial. We aimed at developing a robust transcription-based signature for biodosimetry from human peripheral blood mononuclear cells irradiated with different doses of X-rays (0.1 and 1.0 Gy) at a dose rate of 0.26 Gy/min. Genome-wide radiation-induced changes in mRNA expression were evaluated at both gene and exon level. Using exon-specific qRT-PCR, we confirmed that several biomarker genes are alternatively spliced or transcribed after irradiation and that different exons of these genes exhibit significantly different levels of induction. Moreover, a significant number of radiation-responsive genes were found to be genomic neighbors. Using three different classification models we found that gene and exon signatures performed equally well on dose prediction, as long as more than 10 features are included. Together, our results highlight the necessity of evaluating gene expression at the level of single exons for radiation biodosimetry in particular and transcriptional biomarker research in general. This approach is especially advisable for practical gene expression-based biodosimetry, for which primer- or probe-based techniques would be the method of choice.
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83
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Saberi A, Khodamoradi E, Birgani MJT, Makvandi M. Gene Expression Biodosimetry: Quantitative Assessment of Radiation Dose with Total Body Exposure of Rats. Asian Pac J Cancer Prev 2016; 16:8553-7. [DOI: 10.7314/apjcp.2015.16.18.8553] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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84
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Ishihara H, Tanaka I, Yakumaru H, Tanaka M, Yokochi K, Fukutsu K, Tajima K, Nishimura M, Shimada Y, Akashi M. Quantification of damage due to low-dose radiation exposure in mice: construction and application of a biodosimetric model using mRNA indicators in circulating white blood cells. JOURNAL OF RADIATION RESEARCH 2016; 57:25-34. [PMID: 26589759 PMCID: PMC4708920 DOI: 10.1093/jrr/rrv066] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/30/2015] [Accepted: 09/18/2015] [Indexed: 05/06/2023]
Abstract
Biodosimetry, the measurement of radiation damage in a biologic sample, is a reliable tool for increasing the accuracy of dose estimation. Although established chromosome analyses are suitable for estimating the absorbed dose after high-dose irradiation, biodosimetric methodology to measure damage following low-dose exposure is underdeveloped. RNA analysis of circulating blood containing radiation-sensitive cells is a candidate biodosimetry method. Here we quantified RNA from a small amount of blood isolated from mice following low-dose body irradiation (<0.5 Gy) aimed at developing biodosimetric tools for situations that are difficult to study in humans. By focusing on radiation-sensitive undifferentiated cells in the blood based on Myc RNA expression, we quantified the relative levels of RNA for DNA damage-induced (DDI) genes, such as Bax, Bbc3 and Cdkn1a. The RNA ratios of DDI genes/Myc in the blood increased in a dose-dependent manner 4 h after whole-body irradiation at doses ranging from 0.1 to 0.5 Gy (air-kerma) of X-rays, regardless of whether the mice were in an active or resting state. The RNA ratios were significantly increased after 0.014 Gy (air-kerma) of single X-ray irradiation. The RNA ratios were directly proportional to the absorbed doses in water ranging from 0.1 to 0.5 Gy, based on gamma-irradiation from (137)Cs. Four hours after continuous irradiation with gamma-rays or by internal contamination with a beta-emitter, the increased RNA ratios resembled those following single irradiation. These findings indicate that the RNA status can be utilized as a biodosimetric tool to estimate low-dose radiation when focusing on undifferentiated cells in blood.
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Affiliation(s)
- Hiroshi Ishihara
- Research Center for Radiation Emergency Medicine, National Institute of Radiological Sciences, 4-9-1 Anagawa, Inage-ku, Chiba 263-8555, Japan
| | - Izumi Tanaka
- Research Center for Radiation Emergency Medicine, National Institute of Radiological Sciences, 4-9-1 Anagawa, Inage-ku, Chiba 263-8555, Japan
| | - Haruko Yakumaru
- Research Center for Radiation Emergency Medicine, National Institute of Radiological Sciences, 4-9-1 Anagawa, Inage-ku, Chiba 263-8555, Japan
| | - Mika Tanaka
- Research Center for Radiation Emergency Medicine, National Institute of Radiological Sciences, 4-9-1 Anagawa, Inage-ku, Chiba 263-8555, Japan
| | - Kazuko Yokochi
- Research Center for Radiation Emergency Medicine, National Institute of Radiological Sciences, 4-9-1 Anagawa, Inage-ku, Chiba 263-8555, Japan
| | - Kumiko Fukutsu
- Research Center for Radiation Emergency Medicine, National Institute of Radiological Sciences, 4-9-1 Anagawa, Inage-ku, Chiba 263-8555, Japan
| | - Katsushi Tajima
- Research Center for Radiation Emergency Medicine, National Institute of Radiological Sciences, 4-9-1 Anagawa, Inage-ku, Chiba 263-8555, Japan
| | - Mayumi Nishimura
- Research Center for Radiation Protection, National Institute of Radiological Sciences, 4-9-1 Anagawa, Inage-ku, Chiba 263-8555, Japan
| | - Yoshiya Shimada
- Research Center for Radiation Protection, National Institute of Radiological Sciences, 4-9-1 Anagawa, Inage-ku, Chiba 263-8555, Japan
| | - Makoto Akashi
- Board, National Institute of Radiological Sciences, 4-9-1 Anagawa, Inage-ku, Chiba 263-8555, Japan
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85
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Global Gene Expression Alterations as a Crucial Constituent of Human Cell Response to Low Doses of Ionizing Radiation Exposure. Int J Mol Sci 2015; 17:ijms17010055. [PMID: 26729107 PMCID: PMC4730300 DOI: 10.3390/ijms17010055] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2015] [Revised: 12/21/2015] [Accepted: 12/28/2015] [Indexed: 12/19/2022] Open
Abstract
Exposure to ionizing radiation (IR) is inevitable to humans in real-life scenarios; the hazards of IR primarily stem from its mutagenic, carcinogenic, and cell killing ability. For many decades, extensive research has been conducted on the human cell responses to IR delivered at a low dose/low dose (LD) rate. These studies have shown that the molecular-, cellular-, and tissue-level responses are different after low doses of IR (LDIR) compared to those observed after a short-term high-dose IR exposure (HDIR). With the advent of high-throughput technologies in the late 1990s, such as DNA microarrays, changes in gene expression have also been found to be ubiquitous after LDIR. Very limited subset of genes has been shown to be consistently up-regulated by LDIR, including CDKN1A. Further research on the biological effects and mechanisms induced by IR in human cells demonstrated that the molecular and cellular processes, including transcriptional alterations, activated by LDIR are often related to protective responses and, sometimes, hormesis. Following LDIR, some distinct responses were observed, these included bystander effects, and adaptive responses. Changes in gene expression, not only at the level of mRNA, but also miRNA, have been found to crucially underlie these effects having implications for radiation protection purposes.
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86
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Rühm W, Woloschak GE, Shore RE, Azizova TV, Grosche B, Niwa O, Akiba S, Ono T, Suzuki K, Iwasaki T, Ban N, Kai M, Clement CH, Bouffler S, Toma H, Hamada N. Dose and dose-rate effects of ionizing radiation: a discussion in the light of radiological protection. RADIATION AND ENVIRONMENTAL BIOPHYSICS 2015; 54:379-401. [PMID: 26343037 DOI: 10.1007/s00411-015-0613-6] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/08/2015] [Accepted: 08/18/2015] [Indexed: 05/21/2023]
Abstract
The biological effects on humans of low-dose and low-dose-rate exposures to ionizing radiation have always been of major interest. The most recent concept as suggested by the International Commission on Radiological Protection (ICRP) is to extrapolate existing epidemiological data at high doses and dose rates down to low doses and low dose rates relevant to radiological protection, using the so-called dose and dose-rate effectiveness factor (DDREF). The present paper summarizes what was presented and discussed by experts from ICRP and Japan at a dedicated workshop on this topic held in May 2015 in Kyoto, Japan. This paper describes the historical development of the DDREF concept in light of emerging scientific evidence on dose and dose-rate effects, summarizes the conclusions recently drawn by a number of international organizations (e.g., BEIR VII, ICRP, SSK, UNSCEAR, and WHO), mentions current scientific efforts to obtain more data on low-dose and low-dose-rate effects at molecular, cellular, animal and human levels, and discusses future options that could be useful to improve and optimize the DDREF concept for the purpose of radiological protection.
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Affiliation(s)
- Werner Rühm
- Institute of Radiation Protection, Helmholtz Zentrum München, German Research Center for Environmental Health, Ingolstädter Landstr. 1, 85764, Neuherberg, Germany
| | - Gayle E Woloschak
- Department of Radiation Oncology, Feinberg School of Medicine, Northwestern University, Chicago, IL, 60611, USA
| | - Roy E Shore
- Radiation Effects Research Foundation (RERF), 5-2 Hijiyama Park, Minami-ku, Hiroshima City, 732-0815, Japan
| | - Tamara V Azizova
- Southern Urals Biophysics Institute (SUBI), Ozyorskoe Shosse 19, Ozyorsk, Chelyabinsk Region, Russian Federation, 456780
| | - Bernd Grosche
- Federal Office for Radiation Protection, Ingolstaedter Landstr. 1, 85764, Oberschleissheim, Germany
| | - Ohtsura Niwa
- Fukushima Medical University, Hikarigaoka 1, Fukushima, 960-1295, Japan
| | - Suminori Akiba
- Department of Epidemiology and Preventive Medicine, Kagoshima University Graduate School of Medical and Dental Sciences, 8-35-1 Sakuragaoka, Kagoshima City, Japan
| | - Tetsuya Ono
- Institute for Environmental Sciences, 1-7 Ienomae, Rokkasho, Aomori-ken, 039-3212, Japan
| | - Keiji Suzuki
- Department of Radiation Medical Sciences, Atomic Bomb Disease Institute, Nagasaki University, Nagasaki, Japan
| | - Toshiyasu Iwasaki
- Radiation Safety Research Center, Nuclear Technology Research Laboratory, Central Research Institute of Electric Power Industry (CRIEPI), 2-11-1 Iwado-kita, Tokyo, 201-8511, Japan
| | - Nobuhiko Ban
- Faculty of Nursing, Tokyo Healthcare University, 2-5-1 Higashigaoka, Meguro, Tokyo, 152-8558, Japan
| | - Michiaki Kai
- Department of Environmental Health Science, Oita University of Nursing and Health Sciences, 2944-9 Megusuno, Oita, 840-1201, Japan
| | - Christopher H Clement
- International Commission on Radiological Protection (ICRP), PO Box 1046, Station B, 280 Slater Street, Ottawa, ON, K1P 5S9, Canada
| | - Simon Bouffler
- Centre for Radiation, Chemical and Environmental Hazards, Public Health England (PHE), Chilton, Didcot, OX11 ORQ, UK
| | - Hideki Toma
- JAPAN NUS Co., Ltd. (JANUS), 7-5-25 Nishi-Shinjuku, Shinjuku-Ku, Tokyo, 160-0023, Japan
| | - Nobuyuki Hamada
- International Commission on Radiological Protection (ICRP), PO Box 1046, Station B, 280 Slater Street, Ottawa, ON, K1P 5S9, Canada.
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87
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Brzóska K, Kruszewski M. Toward the development of transcriptional biodosimetry for the identification of irradiated individuals and assessment of absorbed radiation dose. RADIATION AND ENVIRONMENTAL BIOPHYSICS 2015; 54:353-63. [PMID: 25972268 PMCID: PMC4510913 DOI: 10.1007/s00411-015-0603-8] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/21/2015] [Accepted: 04/30/2015] [Indexed: 05/03/2023]
Abstract
The most frequently used and the best established method of biological dosimetry at present is the dicentric chromosome assay, which is poorly suitable for a mass casualties scenario. This gives rise to the need for the development of new, high-throughput assays for rapid identification of the subjects exposed to ionizing radiation. In the present study, we tested the usefulness of gene expression analysis in blood cells for biological dosimetry. Human peripheral blood from three healthy donors was X-irradiated with doses of 0 (control), 0.6, and 2 Gy. The mRNA level of 16 genes (ATF3, BAX, BBC3, BCL2, CDKN1A, DDB2, FDXR, GADD45A, GDF15, MDM2, PLK3, SERPINE1, SESN2, TNFRSF10B, TNFSF4, and VWCE) was assessed by reverse transcription quantitative PCR 6, 12, 24, and 48 h after exposure with ITFG1 and DPM1 used as a reference genes. The panel of radiation-responsive genes was selected comprising GADD45A, CDKN1A, BAX, BBC3, DDB2, TNFSF4, GDF15, and FDXR. Cluster analysis showed that ΔC t values of the selected genes contained sufficient information to allow discrimination between irradiated and non-irradiated blood samples. The samples were clearly grouped according to the absorbed doses of radiation and not to the time interval after irradiation or to the blood donor.
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Affiliation(s)
- Kamil Brzóska
- Centre for Radiobiology and Biological Dosimetry, Institute of Nuclear Chemistry and Technology, Dorodna 16, 03-195, Warsaw, Poland,
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88
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Borghini A, Mercuri A, Turchi S, Chiesa MR, Piccaluga E, Andreassi MG. Increased circulating cell-free DNA levels and mtDNA fragments in interventional cardiologists occupationally exposed to low levels of ionizing radiation. ENVIRONMENTAL AND MOLECULAR MUTAGENESIS 2015; 56:293-300. [PMID: 25327629 DOI: 10.1002/em.21917] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/23/2014] [Accepted: 09/30/2014] [Indexed: 06/04/2023]
Abstract
Circulating cell-free DNA (ccf-DNA) and mtDNA (ccf-mtDNA) have often been used as indicators of cell death and tissue damage in acute and chronic disorders, but little is known about changes in ccf-DNA and ccf-mtDNA concentrations following radiation exposure. The aim of the study was to investigate the impact of chronic low-dose radiation exposure on serum ccf-DNA levels and ccf-mtDNA fragments (mtDNA-79 and mtDNA-230) of interventional cardiologists working in high-volume cardiac catheterization laboratory to assess their possible role as useful radiation biomarkers. We enrolled 50 interventional cardiologists (26 males; age = 48.4 ± 10 years) and 50 age- and gender-matched unexposed controls (27 males; age = 47.6 ± 8.3 years). Quant-iT™ dsDNA High-Sensitivity assay was used to measure circulating ccf-DNA isolated from serum samples. Quantitative analysis of mtDNA fragments was performed by real-time PCR. No significant relationships were found between ccf-DNA and ccf-mtDNA, and age, gender, smoking, or other clinical parameters. Ccf-DNA levels (44.2 ± 31.1 vs. 30.6 ± 19.2 ng/ml, P = 0.013), ccf-mtDNA-79 (2.6 ± 2.1 vs. 1.1 ± 0.8, P < 0.01), and ccf-mtDNA-230 copies (2.0 ± 1.8 vs. 1.04 ± 0.9, P = 0.02) were significantly higher in interventional cardiologists compared with the non-exposed group. In a subset (n = 15) of interventional cardiologists with a reliable reconstruction of cumulative professional exposure (59.7 ± 48.4 mSv; range: 1.4-182 mS), ccf-DNA (53.2 ± 41.3 vs. 36.4 ± 22.9 and 32.2 ± 20.5, P = 0.08), mtDNA-79 (2.4 ± 2.1 vs. 2.03 ± 1.7 and 1.09 ± 0.82, P = 0.05), and mtDNA-230 (2.0 ± 2.2 vs. 1.5 ± 1.4 and 1.04 ± 0.9, P = 0.09) tended to be significantly increased in high-exposure subjects compared with both low-exposure interventional cardiologists and controls. Our results provide evidence for a possible role of circulating DNA as a relevant biomarker of cellular damage induced by exposure to chronic low-dose radiation.
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Affiliation(s)
- Andrea Borghini
- Genetics Research Unit, CNR Institute of Clinical Physiology, Pisa, Italy
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89
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Kabacik S, Manning G, Raffy C, Bouffler S, Badie C. Time, Dose and Ataxia Telangiectasia Mutated (ATM) Status Dependency of Coding and Noncoding RNA Expression after Ionizing Radiation Exposure. Radiat Res 2015; 183:325-37. [DOI: 10.1667/rr13876.1] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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90
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Pernot E, Cardis E, Badie C. Usefulness of Saliva Samples for Biomarker Studies in Radiation Research. Cancer Epidemiol Biomarkers Prev 2014; 23:2673-80. [DOI: 10.1158/1055-9965.epi-14-0588] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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91
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Aerts AM, Impens NREN, Baatout S, Benotmane MA, Camps J, Dabin JM, Derradji H, Grosche B, Horemans N, Jourdain JR, Moreels M, Perko T, Quintens R, Repussard J, Rühm W, Schneider T, Struelens L, Hardeman F. Joint research towards a better radiation protection-highlights of the Fifth MELODI Workshop. JOURNAL OF RADIOLOGICAL PROTECTION : OFFICIAL JOURNAL OF THE SOCIETY FOR RADIOLOGICAL PROTECTION 2014; 34:931-56. [PMID: 25431966 DOI: 10.1088/0952-4746/34/4/931] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
MELODI is the European platform dedicated to low-dose radiation risk research. From 7 October through 10 October 2013 the Fifth MELODI Workshop took place in Brussels, Belgium. The workshop offered the opportunity to 221 unique participants originating from 22 countries worldwide to update their knowledge and discuss radiation research issues through 118 oral and 44 poster presentations. In addition, the MELODI 2013 workshop was reaching out to the broader radiation protection community, rather than only the low-dose community, with contributions from the fields of radioecology, emergency and recovery preparedness, and dosimetry. In this review, we summarise the major scientific conclusions of the workshop, which are important to keep the MELODI strategic research agenda up-to-date and which will serve to establish a joint radiation protection research roadmap for the future.
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Affiliation(s)
- A M Aerts
- Institute for Environment, Health and Safety, Belgian Nuclear Research Centre (SCK•CEN), Mol, Belgium
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92
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Manning G, Taylor K, Finnon P, Lemon JA, Boreham DR, Badie C. Quantifying murine bone marrow and blood radiation dose response following (18)F-FDG PET with DNA damage biomarkers. Mutat Res 2014; 770:29-36. [PMID: 25771867 DOI: 10.1016/j.mrfmmm.2014.09.002] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2014] [Revised: 09/03/2014] [Accepted: 09/05/2014] [Indexed: 05/20/2023]
Abstract
The purpose of this study was to quantify the poorly understood radiation doses to murine bone marrow and blood from whole-body fluorine 18 ((18)F)-fluorodeoxyglucose (FDG) positron emission tomography (PET), by using specific biomarkers and comparing with whole body external low dose exposures. Groups of 3-5 mice were randomly assigned to 10 groups, each receiving either a different activity of (18)F-FDG: 0-37MBq or whole body irradiated with corresponding doses of 0-300mGy X-rays. Blood samples were collected at 24h and at 43h for reticulocyte micronucleus assays and QPCR analysis of gene expression in peripheral blood leukocytes. Blood and bone marrow dose estimates were calculated from injected activities of (18)F-FDG and were based on a recommended ICRP model. Doses to the bone marrow corresponding to 33.43mGy and above for internal (18)F-FDG exposure and to 25mGy and above for external X-ray exposure, showed significant increases in radiation-induced MN-RET formation relative to controls (P<0.05). Regression analysis showed that both types of exposure produced a linear response with linear regression analysis giving R(2) of 0.992 and 0.999 for respectively internal and external exposure. No significant difference between the two data sets was found with a P-value of 0.493. In vivo gene expression dose-responses at 24h for Bbc3 and Cdkn1 were similar for (18)F-FDG and X-ray exposures, with significant modifications occurring for doses over 300mGy for Bbc3 and at the lower dose of 150mGy for Cdkn1a. Both leucocyte gene expression and quantification of MN-RET are highly sensitive biomarkers for reliable estimation of the low doses delivered in vivo to, respectively, blood and bone marrow, following (18)F-FDG PET.
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Affiliation(s)
- Grainne Manning
- Biological Effects Department, Centre for Radiation, Chemical and Environmental Hazards, Public Health England, Chilton, Didcot, Oxfordshire OX11 ORQ, UK
| | - Kristina Taylor
- Department of Medical Physics and Applied Radiation Sciences, McMaster University, Hamilton, ON, Canada
| | - Paul Finnon
- Biological Effects Department, Centre for Radiation, Chemical and Environmental Hazards, Public Health England, Chilton, Didcot, Oxfordshire OX11 ORQ, UK
| | - Jennifer A Lemon
- Department of Medical Physics and Applied Radiation Sciences, McMaster University, Hamilton, ON, Canada
| | - Douglas R Boreham
- Department of Medical Physics and Applied Radiation Sciences, McMaster University, Hamilton, ON, Canada
| | - Christophe Badie
- Biological Effects Department, Centre for Radiation, Chemical and Environmental Hazards, Public Health England, Chilton, Didcot, Oxfordshire OX11 ORQ, UK.
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93
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Deperas-Kaminska M, Bajinskis A, Marczyk M, Polanska J, Wersäll P, Lidbrink E, Ainsbury EA, Guipaud O, Benderitter M, Haghdoost S, Wojcik A. Radiation-induced changes in levels of selected proteins in peripheral blood serum of breast cancer patients as a potential triage biodosimeter for large-scale radiological emergencies. HEALTH PHYSICS 2014; 107:555-563. [PMID: 25353241 DOI: 10.1097/hp.0000000000000158] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
The threat of a large scale radiological emergency, where thousands of people may require fast biological dosimetry for the purpose of triage, makes it necessary to search for new, high throughput biological dosimeters. The authors tested an assay based on the quantitative analysis of selected proteins in peripheral blood serum. They were particularly interested in testing proteins that are specific to irradiation of skin, as these can be used in cases of partial body exposure. Candidate proteins were identified in an earlier study with mice, where skin of the animals was exposed to different doses of radiation and global expression of serum proteins was analyzed. Eight proteins were found, the expression of which showed a consistent dose-response relationship. Human analogues of these proteins were identified, and their expression was measured in peripheral blood serum of 16 breast cancer patients undergoing external beam radiotherapy. The proteins were Apolipoprotein E; Apolipoprotein H; Complement protein 7; Prothrombinase; Pantothenate Kinase 4; Alpha-2-macroglobulin; Fetuin B and Alpha-1-Anti-Chymotrypsin. Measurements were carried out in blood samples collected prior to exposure (control), on the day after one fraction (2 Gy), on the day after five fractions (10 Gy), on the day after 10 fractions (20 Gy), and 1 mo after 23-25 fractions (total dose of 46-50 Gy). Multivariate analysis was carried out, and a multinomial logistic regression model was built. The results indicate that the combined analysis of Apolipoprotein E, Factor X, and Pantothenate Kinase 4 allows discriminating between exposure to 2 Gy and lower and between 10 Gy and higher. The discrimination is possible up to 1 mo after exposure.
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Affiliation(s)
- Marta Deperas-Kaminska
- *CRPR, Stockholm University, Sweden; Institute of Mother and Child, Warszawa, Poland; †CRPR Stockholm University Sweden; Faculty of Medicine, University of Latvia; ‡Data Mining Group, Institute of Automatic Control, Silesian University of Technology, Gliwice, Poland; §Division of Radiotherapy, Radiumhemmet, Karolinska University Hospital, Stockholm, Sweden; **Public Health England Centre for Radiation, Chemical and Environmental Hazards, Chilton, Didcot, Oxford; ††Institute for Radiological Protection and Nuclear Safety, France; ‡‡CRPR, Stockholm University, Sweden; §§CRPR, Stockholm University, Sweden; Jan Kochanowski University, Kielce, Poland
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94
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Il'yasova D, Kinev A, Melton CD, Davis FG. Donor-specific cell-based assays in studying sensitivity to low-dose radiation: a population-based perspective. Front Public Health 2014; 2:244. [PMID: 25478557 PMCID: PMC4235273 DOI: 10.3389/fpubh.2014.00244] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2014] [Accepted: 11/05/2014] [Indexed: 01/19/2023] Open
Abstract
Currently, a linear no-threshold model is used to estimate health risks associated with exposure to low-dose radiation, a prevalent exposure in the general population, because the direct estimation from epidemiological studies suffers from uncertainty. This model has been criticized based on unique biology of low-dose radiation. Whether the departure from linearity is toward increased or decreased risk is intensely debated. We present an approach based on individual radiosensitivity testing and discuss how individual radiosensitivity can be assessed with the goal to develop a quantifiable measure of cellular response that can be conducted via high-throughput population testing.
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Affiliation(s)
- Dora Il'yasova
- Division of Epidemiology and Biostatistics, School of Public Health, Georgia State University , Atlanta, GA , USA
| | | | - C David Melton
- Division of Epidemiology and Biostatistics, School of Public Health, Georgia State University , Atlanta, GA , USA
| | - Faith G Davis
- School of Public Health, University of Alberta , Edmonton, AB , Canada
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95
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High dose ionizing radiation regulates micro RNA and gene expression changes in human peripheral blood mononuclear cells. BMC Genomics 2014; 15:814. [PMID: 25257395 PMCID: PMC4182888 DOI: 10.1186/1471-2164-15-814] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2014] [Accepted: 09/22/2014] [Indexed: 12/15/2022] Open
Abstract
Background High dose ionizing radiation (IR) induces potent toxic cell effects mediated by either direct DNA damage or the production of reactive oxygen species (ROS). IR-induced modulations in multiple biological processes have been proposed to be partly regulated by radiosensitive microRNA (miRNA). In order to gain new insights into the role of miRNAs in the regulation of biological processes after IR, we have investigated changes in mRNA and miRNA expression after high dose IR. Results IR induced changes in the mRNA and miRNA profiles of human peripheral blood mononuclear cells (PBMCs). When comparing non-irradiated and irradiated samples, we detected a time-dependent increase in differentially expressed mRNAs and miRNAs, with the highest differences detectable 20 hours after exposure. Gene ontology analysis revealed that very early events (up to 4 hours) after irradiation were specifically associated with p53 signaling and apoptotic pathways, whereas a large number of diverse cellular processes were deregulated after 20 hours. Transcription factor analysis of all up-regulated genes confirmed the importance of p53 in the early post-irradiation phase. When analyzing miRNA expression, we found 177 miRNAs that were significantly regulated in the late post-irradiation phase. Integrating miRNA and target gene expression data, we found a significant negative correlation between miRNA-mRNA and identified hepatic leukemia factor (HLF) as a transcription factor down-regulated in the response to IR. These regulated miRNAs and the HLF target genes were involved in modulating radio-responsive pathways, such as apoptosis, the MAKP signaling pathway, endocytosis, and cytokine-cytokine interactions. Conclusion Using a large dataset of mRNA and miRNA expression profiles, we describe the interplay of mRNAs and miRNAs in the regulation of gene expression in response to IR at a posttranscriptional level and their involvement in the modulation of radiation-induced biological pathways. Electronic supplementary material The online version of this article (doi:10.1186/1471-2164-15-814) contains supplementary material, which is available to authorized users.
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96
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Casella M, Russo E, Pizzamiglio F, Conti S, Al-Mohani G, Colombo D, Casula V, D Alessandra Y, Biagioli V, Carbucicchio C, Riva S, Fassini G, Moltrasio M, Tundo F, Zucchetti M, Majocchi B, Marino V, Forleo G, Santangeli P, Di Biase L, Dello Russo A, Natale A, Tondo C. The Growing Culture Of A Minimally Fluoroscopic Approach In Electrophysiology Lab. J Atr Fibrillation 2014; 7:1104. [PMID: 27957101 DOI: 10.4022/jafib.1104] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2014] [Revised: 07/16/2014] [Accepted: 07/16/2014] [Indexed: 11/10/2022]
Abstract
Most of interventional procedures in cardiology are carried out under fluoroscopic imaging guidance. Besides other peri-interventional risks, radiation exposure should be considered for its stochastic (inducing malignancy) and deterministic effects on health (tissue reactions like erythema, hair loss and cataracts). In this article we analized the radiation risk from cardiovascular imaging to both patients and medical staff and discusses how customize the X-ray system and how to implement shielding measures in the cath lab. Finally, we reviewed the most recent developments and the latest findings in catheter navigation and 3D electronatomical mapping systems that may help to reduce patient and operator exposure.
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Affiliation(s)
- Michela Casella
- CardiacArrhythmia Research Centre, Centro CardiologicoMonzino IRCCS, Milan, Italy
| | - Eleonora Russo
- CardiacArrhythmia Research Centre, Centro CardiologicoMonzino IRCCS, Milan, Italy
| | | | - Sergio Conti
- CardiacArrhythmia Research Centre, Centro CardiologicoMonzino IRCCS, Milan, Italy
| | - Ghaliah Al-Mohani
- CardiacArrhythmia Research Centre, Centro CardiologicoMonzino IRCCS, Milan, Italy
| | - Daniele Colombo
- CardiacArrhythmia Research Centre, Centro CardiologicoMonzino IRCCS, Milan, Italy
| | - Victor Casula
- Medical Research Center Oulu, Oulu University Hospital and University of Oulu
| | - Yuri D Alessandra
- Laboratory of immunology and functional genomics, Centro CardiologicoMonzino IRCCS, Milan, Italy
| | - Viviana Biagioli
- CardiacArrhythmia Research Centre, Centro CardiologicoMonzino IRCCS, Milan, Italy
| | - Corrado Carbucicchio
- CardiacArrhythmia Research Centre, Centro CardiologicoMonzino IRCCS, Milan, Italy
| | - Stefania Riva
- CardiacArrhythmia Research Centre, Centro CardiologicoMonzino IRCCS, Milan, Italy
| | - Gaetano Fassini
- CardiacArrhythmia Research Centre, Centro CardiologicoMonzino IRCCS, Milan, Italy
| | - Massimo Moltrasio
- CardiacArrhythmia Research Centre, Centro CardiologicoMonzino IRCCS, Milan, Italy
| | - Fabrizio Tundo
- CardiacArrhythmia Research Centre, Centro CardiologicoMonzino IRCCS, Milan, Italy
| | - Martina Zucchetti
- CardiacArrhythmia Research Centre, Centro CardiologicoMonzino IRCCS, Milan, Italy
| | - Benedetta Majocchi
- CardiacArrhythmia Research Centre, Centro CardiologicoMonzino IRCCS, Milan, Italy
| | - Vittoria Marino
- CardiacArrhythmia Research Centre, Centro CardiologicoMonzino IRCCS, Milan, Italy
| | - Giovanni Forleo
- Division of Cardiology, Policlinico Tor Vergata, Rome, Italy
| | - Pasquale Santangeli
- Cardiac Arrhythmia Service, Stanford University School of Medicine, 300 Pasteur Drive H 2146, Stanford, CA, 94305, USA
| | - Luigi Di Biase
- Texas Cardiac Arrhythmia Institute at St David?s Medical Center, Austin, TX, USA
| | - Antonio Dello Russo
- CardiacArrhythmia Research Centre, Centro CardiologicoMonzino IRCCS, Milan, Italy
| | - Andrea Natale
- Cardiac Arrhythmia Service, Stanford University School of Medicine, 300 Pasteur Drive H 2146, Stanford, CA, 94305, USA
| | - Claudio Tondo
- CardiacArrhythmia Research Centre, Centro CardiologicoMonzino IRCCS, Milan, Italy
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97
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Lacoste S, Bhatia R, Bhatia S, O'Connor TR. Granulocytes affect double-strand break repair assays in primary human lymphocytes. PLoS One 2014; 9:e93185. [PMID: 24667872 PMCID: PMC3965556 DOI: 10.1371/journal.pone.0093185] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2013] [Accepted: 02/28/2014] [Indexed: 11/20/2022] Open
Abstract
Patients who develop therapy-related myelodysplasia/acute myeloid leukemia after autologous-hematopoietic stem cell (aHCT) transplant show lower expression levels of DNA repair genes in their pre-aHCT CD34+ cells. To investigate whether this leads to functional differences in DNA repair abilities measurable in patients, we adapted two plasmid-based host-cell reactivation assays for use in primary lymphocytes. Prior to applying these assays to patients who underwent aHCT, we wanted first to verify whether sample preparation affected repair measurements, as patient samples were simply depleted of erythrocytes (with hetastarch) prior to freezing, which is not the classical way to prepare lymphocytes prior to DNA repair experiments (with a density gradient). We show here that lymphocytes from healthy donors freshly prepared with hetastarch show systematically a higher level of double-strand break repair as compared to when prepared with a density gradient, but that most of this difference disappears after samples were frozen. Several observations points to granulocytes as the source for this effect of sample preparation on repair: 1) removal of granulocytes makes the effect disappear, 2) DSB repair measurements for the same individual correlate to the percentage of granulocytes in the sample and 3) nucleofection in presence of granulocytes increases the level of reactive oxygen species (ROS) in neighboring lymphocytes in a dose-dependent manner (R2 of 0.95). These results indicate that co-purified granulocytes, possibly through the release of ROS at time of transfection, can lead to an enhanced repair in lymphocytes that obfuscates any evaluation of inter individual differences in repair as measured by host-cell reactivation. As a result, hetastarch-prepared samples are likely unsuitable for the assessment of DSB repair in primary cells with that type of assay. Granulocyte contamination that exists after a density gradient preparation, although much more limited, could have similar effects, but might be circumvented by freezing cells prior to analysis.
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Affiliation(s)
- Sandrine Lacoste
- Department of Cancer Biology, Beckman Research Institute, Duarte, California, United States of America
- * E-mail:
| | - Ravi Bhatia
- Division of Hematology and Hematopoietic Cell Transplantation, City of Hope Medical Center, Duarte, California, United States of America
| | - Smita Bhatia
- Department of Population Sciences, City of Hope Medical Center, Duarte, California, United States of America
| | - Timothy R. O'Connor
- Department of Cancer Biology, Beckman Research Institute, Duarte, California, United States of America
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98
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Badie C, Kabacik S, Balagurunathan Y, Bernard N, Brengues M, Faggioni G, Greither R, Lista F, Peinnequin A, Poyot T, Herodin F, Missel A, Terbrueggen B, Zenhausern F, Rothkamm K, Meineke V, Braselmann H, Beinke C, Abend M. Laboratory intercomparison of gene expression assays. Radiat Res 2013; 180:138-48. [PMID: 23886340 DOI: 10.1667/rr3236.1] [Citation(s) in RCA: 66] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
The possibility of a large-scale acute radiation exposure necessitates the development of new methods that could provide rapid individual dose estimates with high sample throughput. The focus of the study was an intercomparison of laboratories' dose-assessment performances using gene expression assays. Lithium-heparinized whole blood from one healthy donor was irradiated (240 kVp, 1 Gy/min) immediately after venipuncture at approximately 37°C using single X-ray doses. Blood samples to establish calibration curves (0.25-4 Gy) as well as 10 blinded test samples (0.1-6.4 Gy) were incubated for 24 h at 37°C supplemented with an equal volume of medium and 10% fetal calf serum. For quantitative reverse transcription polymerase chain reaction (qRT-PCR), samples were lysed, stored at -20°C and shipped on ice. For the Chemical Ligation Dependent Probe Amplification methodology (CLPA), aliquots were incubated in 2 ml CLPA reaction buffer (DxTerity), mixed and shipped at room temperature. Assays were run in each laboratory according to locally established protocols. The mean absolute difference (MAD) of estimated doses relative to the true doses (in Gy) was calculated. We also merged doses into binary categories reflecting aspects of clinical/diagnostic relevance and examined accuracy, sensitivity and specificity. The earliest reported time on dose estimates was <8 h. The standard deviation of technical replicate measurements in 75% of all measurements was below 11%. MAD values of 0.3-0.5 Gy and 0.8-1.3 Gy divided the laboratories contributions into two groups. These fourfold differences in accuracy could be primarily explained by unexpected variances of the housekeeping gene (P = 0.0008) and performance differences in processing of calibration and blinded test samples by half of the contributing laboratories. Reported gene expression dose estimates aggregated into binary categories in general showed an accuracies and sensitivities of 93-100% and 76-100% for the groups, with low MAD and high MAD, respectively. In conclusion, gene expression-based dose estimates were reported quickly, and for laboratories with MAD between 0.3-0.5 Gy binary dose categories of clinical significance could be discriminated with an accuracy and sensitivity comparable to established cytogenetic assays.
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Affiliation(s)
- C Badie
- Public Health England, Centre for Radiation, Chemical and Environmental Hazards, Chilton, Didcot, Oxon OX11 0RQ, United Kingdom
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99
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Nosel I, Vaurijoux A, Barquinero JF, Gruel G. Characterization of gene expression profiles at low and very low doses of ionizing radiation. DNA Repair (Amst) 2013; 12:508-17. [PMID: 23683873 DOI: 10.1016/j.dnarep.2013.04.021] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2012] [Revised: 04/19/2013] [Accepted: 04/21/2013] [Indexed: 01/08/2023]
Abstract
The aim of the present study is to analyse by microarray techniques how gene expression is modulated after exposure to low and very low doses of ionizing radiation, to evaluate if the pattern of gene expression shows dose dependence, and to search for putative regulatory mechanisms behind the observed gene-expression modifications. For this, whole blood samples from five healthy donors were exposed in six doses between 5 and 500mGy. Total RNA extraction from CD4(+) lymphocytes was done at four different post-irradiation times. After mRNA amplification, aRNAs were hybridized on DNA microarrays. The results indicated that up-regulation was twice than down-regulation. Surprisingly, the number of modulated genes does not seem to change drastically with dose, even at the lowest dose of 5mGy. Clustering analysis revealed seven gene expression clusters with different dose dependence profiles. The functional analysis showed that the genes which increased their expression with the dose were related to p53 pathway and DNA damage response. This could be observed from 25mGy, but became very clear at doses equal or greater than 100mGy. On the other hand, genes with a constant modulation of their expression in all the tested doses were related to cellular respiration, ATP metabolic process and chromatin organization. These latter molecular mechanisms seem to be triggered at very low doses (5-25mGy). In silico promoter analysis seems to confirm the implication of transcription factors related to the pathways mentioned above.
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Affiliation(s)
- Ingrid Nosel
- IRSN, Laboratoire de Dosimétrie Biologique, BP 17, 92262 Fontenay aux Roses cedex, France
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100
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Manning G, Rothkamm K. Deoxyribonucleic acid damage-associated biomarkers of ionising radiation: current status and future relevance for radiology and radiotherapy. Br J Radiol 2013; 86:20130173. [PMID: 23659923 DOI: 10.1259/bjr.20130173] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Diagnostic and therapeutic radiation technology has developed dramatically in recent years, and its use has increased significantly, bringing clinical benefit. The use of diagnostic radiology has become widespread in modern society, particularly in paediatrics where the clinical benefit needs to be balanced with the risk of leukaemia and brain cancer increasing after exposure to low doses of radiation. With improving long-term survival rates of radiotherapy patients and the ever-increasing use of diagnostic and interventional radiology procedures, concern has risen over the long-term risks and side effects from such treatments. Biomarker development in radiology and radiotherapy has progressed significantly in recent years to investigate the effects of such use and optimise treatment. Recent biomarker development has focused on improving the limitations of established techniques by the use of automation, increasing sensitivity and developing novel biomarkers capable of quicker results. The effect of low-dose exposure (0-100 mGy) used in radiology, which is increasingly linked to cancer incidences, is being investigated, as some recent research challenges the linear-no-threshold model. Radiotherapy biomarkers are focused on identifying radiosensitive patients, determining the treatment-associated risk and allowing for a tailored and more successful treatment of cancer patients. For biomarkers in any of these areas to be successfully developed, stringent criteria must be applied in techniques and analysis of data to reduce variation among reports and allow data sets to be accurately compared. Newly developed biomarkers can then be used in combination with the established techniques to better understand and quantify the individual biological response to exposures associated with radiology tests and to personalise treatment plans for patients.
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Affiliation(s)
- G Manning
- Biological Effects Department, Centre for Radiation, Chemical and Environmental Hazards, Public Health England, Chilton, UK.
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