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Lalonde C, Sreetharan S, Murray A, Stoa L, Cybulski ME, Kennedy A, Landry N, Stillar A, Khurana S, Tharmalingam S, Wilson J, Khaper N, Lees SJ, Boreham D, Tai TC. Absence of Depressive and Anxious Behavior with Genetic Dysregulation in Adult C57Bl/6J Mice after Prenatal Exposure to Ionizing Radiation. Int J Mol Sci 2023; 24:ijms24108466. [PMID: 37239811 DOI: 10.3390/ijms24108466] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Revised: 04/29/2023] [Accepted: 05/01/2023] [Indexed: 05/28/2023] Open
Abstract
The exposure of ionizing radiation during early gestation often leads to deleterious and even lethal effects; however, few extensive studies have been conducted on late gestational exposures. This research examined the behavior al effects of C57Bl/6J mouse offspring exposed to low dose ionizing gamma irradiation during the equivalent third trimester. Pregnant dams were randomly assigned to sham or exposed groups to either low dose or sublethal dose radiation (50, 300, or 1000 mGy) at gestational day 15. Adult offspring underwent a behavioral and genetic analysis after being raised under normal murine housing conditions. Our results indicate very little change in the behavioral tasks measuring general anxiety, social anxiety, and stress-management in animals exposed prenatally across the low dose radiation conditions. Quantitative real-time polymerase chain reactions were conducted on the cerebral cortex, hippocampus, and cerebellum of each animal; results indicate some dysregulation in markers of DNA damage, synaptic activity, reactive oxygen species (ROS) regulation, and methylation pathways in the offspring. Together, our results provide evidence in the C57Bl/6J strain, that exposure to sublethal dose radiation (<1000 mGy) during the last period of gestation leads to no observable changes in behaviour when assessed as adults, although some changes in gene expression were observed for specific brain regions. These results indicate that the level of oxidative stress occurring during late gestation for this mouse strain is not sufficient for a change in the assessed behavioral phenotype, but results in some modest dysregulation of the genetic profile of the brain.
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Affiliation(s)
- Christine Lalonde
- Biomolecular Sciences, Laurentian University, Sudbury, ON P3E2C6, Canada
- School of Natural Sciences, Laurentian University, Sudbury, ON P3E2C6, Canada
- Medical Sciences Division, NOSM University, Sudbury, ON P3E2C6, Canada
| | - Shayenthiran Sreetharan
- Medical Sciences Division, NOSM University, Sudbury, ON P3E2C6, Canada
- Department of Biology, McMaster University, Hamilton, ON L8S4L8, Canada
| | - Alyssa Murray
- School of Natural Sciences, Laurentian University, Sudbury, ON P3E2C6, Canada
- Medical Sciences Division, NOSM University, Sudbury, ON P3E2C6, Canada
| | - Lisa Stoa
- Department of Biology, McMaster University, Hamilton, ON L8S4L8, Canada
| | | | - Allison Kennedy
- Medical Sciences Division, NOSM University, Sudbury, ON P3E2C6, Canada
| | - Nicholas Landry
- Department of Psychology, Nipissing University, North Bay, ON P1B8L7, Canada
| | - Amy Stillar
- Department of Psychology, Nipissing University, North Bay, ON P1B8L7, Canada
| | - Sandhya Khurana
- Medical Sciences Division, NOSM University, Sudbury, ON P3E2C6, Canada
| | - Sujeenthar Tharmalingam
- Biomolecular Sciences, Laurentian University, Sudbury, ON P3E2C6, Canada
- School of Natural Sciences, Laurentian University, Sudbury, ON P3E2C6, Canada
- Medical Sciences Division, NOSM University, Sudbury, ON P3E2C6, Canada
| | - Joanna Wilson
- Department of Biology, McMaster University, Hamilton, ON L8S4L8, Canada
| | - Neelam Khaper
- Biomolecular Sciences, Laurentian University, Sudbury, ON P3E2C6, Canada
- Medical Sciences Division, NOSM University, Sudbury, ON P3E2C6, Canada
| | - Simon J Lees
- Medical Sciences Division, NOSM University, Sudbury, ON P3E2C6, Canada
| | - Douglas Boreham
- Biomolecular Sciences, Laurentian University, Sudbury, ON P3E2C6, Canada
- School of Natural Sciences, Laurentian University, Sudbury, ON P3E2C6, Canada
- Medical Sciences Division, NOSM University, Sudbury, ON P3E2C6, Canada
| | - T C Tai
- Biomolecular Sciences, Laurentian University, Sudbury, ON P3E2C6, Canada
- School of Natural Sciences, Laurentian University, Sudbury, ON P3E2C6, Canada
- Medical Sciences Division, NOSM University, Sudbury, ON P3E2C6, Canada
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Craeghs L, Callaerts-Vegh Z, Verslegers M, Van der Jeugd A, Govaerts K, Dresselaers T, Wogensen E, Verreet T, Moons L, Benotmane MA, Himmelreich U, D'Hooge R. Prenatal Radiation Exposure Leads to Higher-Order Telencephalic Dysfunctions in Adult Mice That Coincide with Reduced Synaptic Plasticity and Cerebral Hypersynchrony. Cereb Cortex 2021; 32:3525-3541. [PMID: 34902856 DOI: 10.1093/cercor/bhab431] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2021] [Revised: 10/25/2021] [Accepted: 10/26/2021] [Indexed: 11/14/2022] Open
Abstract
Higher-order telencephalic circuitry has been suggested to be especially vulnerable to irradiation or other developmentally toxic impact. This report details the adult effects of prenatal irradiation at a sensitive time point on clinically relevant brain functions controlled by telencephalic regions, hippocampus (HPC), and prefrontal cortex (PFC). Pregnant C57Bl6/J mice were whole-body irradiated at embryonic day 11 (start of neurogenesis) with X-ray intensities of 0.0, 0.5, or 1.0 Gy. Female offspring completed a broad test battery of HPC-/PFC-controlled tasks that included cognitive performance, fear extinction, exploratory, and depression-like behaviors. We examined neural functions that are mechanistically related to these behavioral and cognitive changes, such as hippocampal field potentials and long-term potentiation, functional brain connectivity (by resting-state functional magnetic resonance imaging), and expression of HPC vesicular neurotransmitter transporters (by immunohistochemical quantification). Prenatally exposed mice displayed several higher-order dysfunctions, such as decreased nychthemeral activity, working memory defects, delayed extinction of threat-evoked response suppression as well as indications of perseverative behavior. Electrophysiological examination indicated impaired hippocampal synaptic plasticity. Prenatal irradiation also induced cerebral hypersynchrony and increased the number of glutamatergic HPC terminals. These changes in brain connectivity and plasticity could mechanistically underlie the irradiation-induced defects in higher telencephalic functions.
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Affiliation(s)
- Livine Craeghs
- Department of Brain & Cognition, Research Group Biological Psychology, University of Leuven (KU Leuven), Leuven 3000, Belgium
| | - Zsuzsanna Callaerts-Vegh
- Department of Brain & Cognition, Research Group Biological Psychology, University of Leuven (KU Leuven), Leuven 3000, Belgium
| | - Mieke Verslegers
- Department of Radiobiology, Institute for Environmental Health and Safety, Nuclear Research Center (SCK CEN), Mol 2400, Belgium
| | - Ann Van der Jeugd
- Department of Brain & Cognition, Research Group Biological Psychology, University of Leuven (KU Leuven), Leuven 3000, Belgium
| | - Kristof Govaerts
- Department of Imaging & Pathology, Research Group Biomedical MRI, University of Leuven (KU Leuven), Leuven 3000, Belgium
| | - Tom Dresselaers
- Department of Imaging & Pathology, Research Group Biomedical MRI, University of Leuven (KU Leuven), Leuven 3000, Belgium
| | - Elise Wogensen
- Department of Brain & Cognition, Research Group Biological Psychology, University of Leuven (KU Leuven), Leuven 3000, Belgium
| | - Tine Verreet
- Department of Radiobiology, Institute for Environmental Health and Safety, Nuclear Research Center (SCK CEN), Mol 2400, Belgium
| | - Lieve Moons
- Department of Biology, Research Group Neural Circuit Development and Regeneration, University of Leuven (KU Leuven), Leuven 3000, Belgium
| | - Mohammed A Benotmane
- Department of Radiobiology, Institute for Environmental Health and Safety, Nuclear Research Center (SCK CEN), Mol 2400, Belgium
| | - Uwe Himmelreich
- Department of Imaging & Pathology, Research Group Biomedical MRI, University of Leuven (KU Leuven), Leuven 3000, Belgium
| | - Rudi D'Hooge
- Department of Brain & Cognition, Research Group Biological Psychology, University of Leuven (KU Leuven), Leuven 3000, Belgium
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Out-of-Field Hippocampus from Partial-Body Irradiated Mice Displays Changes in Multi-Omics Profile and Defects in Neurogenesis. Int J Mol Sci 2021; 22:ijms22084290. [PMID: 33924260 PMCID: PMC8074756 DOI: 10.3390/ijms22084290] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2021] [Revised: 04/15/2021] [Accepted: 04/15/2021] [Indexed: 12/11/2022] Open
Abstract
The brain undergoes ionizing radiation exposure in many clinical situations, particularly during radiotherapy for brain tumors. The critical role of the hippocampus in the pathogenesis of radiation-induced neurocognitive dysfunction is well recognized. The goal of this study is to test the potential contribution of non-targeted effects in the detrimental response of the hippocampus to irradiation and to elucidate the mechanisms involved. C57Bl/6 mice were whole body (WBI) or partial body (PBI) irradiated with 0.1 or 2.0 Gy of X-rays or sham irradiated. PBI consisted of the exposure of the lower third of the mouse body, whilst the upper two thirds were shielded. Hippocampi were collected 15 days or 6 months post-irradiation and a multi-omics approach was adopted to assess the molecular changes in non-coding RNAs, proteins and metabolic levels, as well as histological changes in the rate of hippocampal neurogenesis. Notably, at 2.0 Gy the pattern of early molecular and histopathological changes induced in the hippocampus at 15 days following PBI were similar in quality and quantity to the effects induced by WBI, thus providing a proof of principle of the existence of out-of-target radiation response in the hippocampus of conventional mice. We detected major alterations in DAG/IP3 and TGF-β signaling pathways as well as in the expression of proteins involved in the regulation of long-term neuronal synaptic plasticity and synapse organization, coupled with defects in neural stem cells self-renewal in the hippocampal dentate gyrus. However, compared to the persistence of the WBI effects, most of the PBI effects were only transient and tended to decrease at 6 months post-irradiation, indicating important mechanistic difference. On the contrary, at low dose we identified a progressive accumulation of molecular defects that tended to manifest at later post-irradiation times. These data, indicating that both targeted and non-targeted radiation effects might contribute to the pathogenesis of hippocampal radiation-damage, have general implications for human health.
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Hladik D, Dalke C, von Toerne C, Hauck SM, Azimzadeh O, Philipp J, Ung MC, Schlattl H, Rößler U, Graw J, Atkinson MJ, Tapio S. CREB Signaling Mediates Dose-Dependent Radiation Response in the Murine Hippocampus Two Years after Total Body Exposure. J Proteome Res 2019; 19:337-345. [DOI: 10.1021/acs.jproteome.9b00552] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Daniela Hladik
- Institute of Radiation Biology, Helmholtz Zentrum München GmbH, German Research Center for Environmental Health GmbH (HMGU), 85764 Neuherberg, Germany
- Technical University Munich (TUM), 80333 Munich, Germany
| | - Claudia Dalke
- Institute of Developmental Genetics, HMGU, 85764 Neuherberg, Germany
| | | | | | - Omid Azimzadeh
- Institute of Radiation Biology, Helmholtz Zentrum München GmbH, German Research Center for Environmental Health GmbH (HMGU), 85764 Neuherberg, Germany
| | - Jos Philipp
- Institute of Radiation Biology, Helmholtz Zentrum München GmbH, German Research Center for Environmental Health GmbH (HMGU), 85764 Neuherberg, Germany
| | - Marie-Claire Ung
- Institute of Developmental Genetics, HMGU, 85764 Neuherberg, Germany
| | - Helmut Schlattl
- Research Unit Medical Radiation Physics and Diagnostics, HMGU, 85764 Neuherberg, Germany
| | - Ute Rößler
- Federal Office for Radiation Protection, Department SG Radiation Protection and Health, 85764 Oberschleißheim, Germany
| | - Jochen Graw
- Institute of Developmental Genetics, HMGU, 85764 Neuherberg, Germany
| | - Michael J. Atkinson
- Institute of Radiation Biology, Helmholtz Zentrum München GmbH, German Research Center for Environmental Health GmbH (HMGU), 85764 Neuherberg, Germany
- Technical University Munich (TUM), 80333 Munich, Germany
| | - Soile Tapio
- Institute of Radiation Biology, Helmholtz Zentrum München GmbH, German Research Center for Environmental Health GmbH (HMGU), 85764 Neuherberg, Germany
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Averbeck D, Salomaa S, Bouffler S, Ottolenghi A, Smyth V, Sabatier L. Progress in low dose health risk research. MUTATION RESEARCH-REVIEWS IN MUTATION RESEARCH 2018; 776:46-69. [DOI: 10.1016/j.mrrev.2018.04.001] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/15/2018] [Revised: 04/11/2018] [Accepted: 04/12/2018] [Indexed: 12/11/2022]
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Risk of defeats in the central nervous system during deep space missions. Neurosci Biobehav Rev 2016; 71:621-632. [DOI: 10.1016/j.neubiorev.2016.10.006] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2016] [Revised: 10/06/2016] [Accepted: 10/11/2016] [Indexed: 02/04/2023]
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Current Evidence for Developmental, Structural, and Functional Brain Defects following Prenatal Radiation Exposure. Neural Plast 2016; 2016:1243527. [PMID: 27382490 PMCID: PMC4921147 DOI: 10.1155/2016/1243527] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2016] [Accepted: 05/12/2016] [Indexed: 12/13/2022] Open
Abstract
Ionizing radiation is omnipresent. We are continuously exposed to natural (e.g., radon and cosmic) and man-made radiation sources, including those from industry but especially from the medical sector. The increasing use of medical radiation modalities, in particular those employing low-dose radiation such as CT scans, raises concerns regarding the effects of cumulative exposure doses and the inappropriate utilization of these imaging techniques. One of the major goals in the radioprotection field is to better understand the potential health risk posed to the unborn child after radiation exposure to the pregnant mother, of which the first convincing evidence came from epidemiological studies on in utero exposed atomic bomb survivors. In the following years, animal models have proven to be an essential tool to further characterize brain developmental defects and consequent functional deficits. However, the identification of a possible dose threshold is far from complete and a sound link between early defects and persistent anomalies has not yet been established. This review provides an overview of the current knowledge on brain developmental and persistent defects resulting from in utero radiation exposure and addresses the many questions that still remain to be answered.
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Karapiperis C, Kempf SJ, Quintens R, Azimzadeh O, Vidal VL, Pazzaglia S, Bazyka D, Mastroberardino PG, Scouras ZG, Tapio S, Benotmane MA, Ouzounis CA. Brain Radiation Information Data Exchange (BRIDE): integration of experimental data from low-dose ionising radiation research for pathway discovery. BMC Bioinformatics 2016; 17:212. [PMID: 27170263 PMCID: PMC4865096 DOI: 10.1186/s12859-016-1068-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2015] [Accepted: 04/21/2016] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND The underlying molecular processes representing stress responses to low-dose ionising radiation (LDIR) in mammals are just beginning to be understood. In particular, LDIR effects on the brain and their possible association with neurodegenerative disease are currently being explored using omics technologies. RESULTS We describe a light-weight approach for the storage, analysis and distribution of relevant LDIR omics datasets. The data integration platform, called BRIDE, contains information from the literature as well as experimental information from transcriptomics and proteomics studies. It deploys a hybrid, distributed solution using both local storage and cloud technology. CONCLUSIONS BRIDE can act as a knowledge broker for LDIR researchers, to facilitate molecular research on the systems biology of LDIR response in mammals. Its flexible design can capture a range of experimental information for genomics, epigenomics, transcriptomics, and proteomics. The data collection is available at: .
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Affiliation(s)
- Christos Karapiperis
- Department of Genetics, Development & Molecular Biology, School of Biology, Aristotle University of Thessalonica, 54124, Thessalonica, Greece
| | - Stefan J Kempf
- Institute of Radiation Biology, Helmholtz Zentrum München, German Research Center for Environmental Health GmbH, 85764, Neuherberg, Germany
- Present address: Department of Biochemistry and Molecular Biology, University of Southern Denmark, Campusvej 55, 5230, Odense M, Denmark
| | - Roel Quintens
- Radiobiology Unit, Belgian Nuclear Research Centre (SCK•CEN), B-2400, Mol, Belgium
| | - Omid Azimzadeh
- Institute of Radiation Biology, Helmholtz Zentrum München, German Research Center for Environmental Health GmbH, 85764, Neuherberg, Germany
| | - Victoria Linares Vidal
- School of Medicine, IISPV, "Rovira i Virgili" University, Sant Llorens 21, 43201, Reus, Spain
| | - Simonetta Pazzaglia
- Laboratory of Radiation Biology & Biomedicine, Agenzia Nazionale per le Nuove Tecnologie, l'Energia e lo Sviluppo Economico Sostenibile (ENEA) Centro Ricerche Casaccia, 00123, Rome, Italy
| | - Dimitry Bazyka
- National Research Center for Radiation Medicine of the National Academy of Medical Sciences of Ukraine, Melnykov str. 53, Kyiv, 04050, Ukraine
| | | | - Zacharias G Scouras
- Department of Genetics, Development & Molecular Biology, School of Biology, Aristotle University of Thessalonica, 54124, Thessalonica, Greece
| | - Soile Tapio
- Institute of Radiation Biology, Helmholtz Zentrum München, German Research Center for Environmental Health GmbH, 85764, Neuherberg, Germany.
| | | | - Christos A Ouzounis
- Department of Genetics, Development & Molecular Biology, School of Biology, Aristotle University of Thessalonica, 54124, Thessalonica, Greece.
- Biological Process & Computation Laboratory (BCPL), Chemical Process & Energy Resources Institute (CPERI), Centre for Research & Technology Hellas (CERTH), Thessalonica, 57001, Greece.
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Eriksson P, Buratovic S, Fredriksson A, Stenerlöw B, Sundell-Bergman S. Neonatal exposure to whole body ionizing radiation induces adult neurobehavioural defects: Critical period, dose--response effects and strain and sex comparison. Behav Brain Res 2016; 304:11-9. [PMID: 26876140 DOI: 10.1016/j.bbr.2016.02.008] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2015] [Revised: 02/03/2016] [Accepted: 02/07/2016] [Indexed: 02/06/2023]
Abstract
Development of the brain includes periods which can be critical for its normal maturation. The present study investigates specifically vulnerable peri-/postnatal periods in mice which are essential for understanding the etiology behind radiation induced neurotoxicity and functional defects, including evaluation of neurotoxicity between sexes or commonly used laboratory mouse strains following low/moderate doses of ionizing radiation (IR). Male Naval Medical Research Institute (NMRI) mice, whole body irradiated to a single 500 mGy IR dose, on postnatal day (PND) 3 or PND 10 showed an altered adult spontaneous behaviour and impaired habituation capacity, whereas irradiation on PND 19 did not have any impact on the studied variables. Both NMRI and C57bl/6 male and female mice showed an altered adult spontaneous behaviour and impaired habituation following a single whole body irradiation of 500 or 1000 mGy, but not after 20 or 100 mGy, on PND 10. The present study shows that exposure to low/moderate doses of IR during critical life stages might be involved in the induction of neurological/neurodegenerative disorder/disease. A specifically vulnerable period for radiation induced neurotoxicity seems to be around PND 3-10 in mice. Further studies are needed to investigate mechanisms involved in induction of developmental neurotoxicity following low-dose irradiation.
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Affiliation(s)
- Per Eriksson
- Department of Environmental Toxicology, Uppsala University, Norbyvägen 18A, SE-75236 Uppsala, Sweden.
| | - Sonja Buratovic
- Department of Environmental Toxicology, Uppsala University, Norbyvägen 18A, SE-75236 Uppsala, Sweden
| | - Anders Fredriksson
- Department of Environmental Toxicology, Uppsala University, Norbyvägen 18A, SE-75236 Uppsala, Sweden
| | - Bo Stenerlöw
- Department of Immunology, Genetics and Pathology, Uppsala University, Uppsala, Sweden
| | - Synnöve Sundell-Bergman
- Department of Soil and Environment, Swedish University of Agricultural Sciences, Uppsala, Sweden
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