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Gajski G, Kašuba V, Milić M, Gerić M, Matković K, Delić L, Nikolić M, Pavičić M, Rozgaj R, Garaj-Vrhovac V, Kopjar N. Exploring cytokinesis block micronucleus assay in Croatia: A journey through the past, present, and future in biomonitoring of the general population. MUTATION RESEARCH. GENETIC TOXICOLOGY AND ENVIRONMENTAL MUTAGENESIS 2024; 895:503749. [PMID: 38575251 DOI: 10.1016/j.mrgentox.2024.503749] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/05/2023] [Revised: 03/06/2024] [Accepted: 03/12/2024] [Indexed: 04/06/2024]
Abstract
In this study, we used the cytokinesis-block micronucleus (CBMN) assay to evaluate the background frequency of cytogenetic damage in peripheral blood lymphocytes of the general population concerning different anthropometric data and lifestyle factors. The background frequency of CBMN assay parameters was analysed in 850 healthy, occupationally non-exposed male and female subjects (average age, 38±11 years) gathered from the general Croatian population from 2000 to 2023. The mean background values for micronuclei (MNi) in the whole population were 5.3±4.3 per 1000 binucleated cells, while the mean frequency of nucleoplasmic bridges (NPBs) was 0.7±1.3 and of nuclear buds (NBUDs) 3.1±3.2. The cut-off value, which corresponds to the 95th percentile of the distribution of 850 individual values, was 14 MNi, 3 NPBs, and 9 NBUDs. Results from our database also showed an association of the tested genomic instability parameters with age and sex but also with other lifestyle factors. These findings underscore the importance of considering several anthropometric and lifestyle factors when conducting biomonitoring studies. Overall, the normal and cut-off values attained here present normal values for the general population that can later serve as baseline values for further human biomonitoring studies either in Croatia or worldwide.
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Affiliation(s)
- Goran Gajski
- Institute for Medical Research and Occupational Health, Division of Toxicology, Mutagenesis Unit, 10000 Zagreb, Croatia.
| | - Vilena Kašuba
- Institute for Medical Research and Occupational Health, Division of Toxicology, Mutagenesis Unit, 10000 Zagreb, Croatia
| | - Mirta Milić
- Institute for Medical Research and Occupational Health, Division of Toxicology, Mutagenesis Unit, 10000 Zagreb, Croatia
| | - Marko Gerić
- Institute for Medical Research and Occupational Health, Division of Toxicology, Mutagenesis Unit, 10000 Zagreb, Croatia
| | - Katarina Matković
- Institute for Medical Research and Occupational Health, Division of Toxicology, Mutagenesis Unit, 10000 Zagreb, Croatia
| | - Luka Delić
- Institute for Medical Research and Occupational Health, Division of Toxicology, Mutagenesis Unit, 10000 Zagreb, Croatia
| | - Maja Nikolić
- Institute for Medical Research and Occupational Health, Division of Toxicology, Mutagenesis Unit, 10000 Zagreb, Croatia
| | - Martina Pavičić
- Institute for Medical Research and Occupational Health, Division of Toxicology, Mutagenesis Unit, 10000 Zagreb, Croatia
| | - Ružica Rozgaj
- Institute for Medical Research and Occupational Health, Division of Toxicology, Mutagenesis Unit, 10000 Zagreb, Croatia
| | - Vera Garaj-Vrhovac
- Institute for Medical Research and Occupational Health, Division of Toxicology, Mutagenesis Unit, 10000 Zagreb, Croatia
| | - Nevenka Kopjar
- Institute for Medical Research and Occupational Health, Division of Toxicology, Mutagenesis Unit, 10000 Zagreb, Croatia
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Cherednichenko O, Pilyugina A, Nuraliev S, Azizbekova D. Persons chronically exposed to low doses of ionizing radiation: A cytogenetic dosimetry study. MUTATION RESEARCH. GENETIC TOXICOLOGY AND ENVIRONMENTAL MUTAGENESIS 2024; 894:503728. [PMID: 38432778 DOI: 10.1016/j.mrgentox.2024.503728] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/25/2023] [Revised: 01/10/2024] [Accepted: 01/13/2024] [Indexed: 03/05/2024]
Abstract
The dosimetry and control of exposure for individuals chronically exposed to ionizing radiation are important and complex issues. Assessment may be optimized by evaluating individual adaptation and radiosensitivity, but it is not possible for a single model to account for all relevant parameters. Our goal was to develop approaches for the calculation of doses for persons chronically exposed to ionizing radiation, taking their radiosensitivities into consideration. On the basis of ex vivo radiation of blood samples, dose-effect models were constructed for dose ranges 0.01-2.0 and 0.01-0.4 Gy, using different cytogenetic criteria. The frequencies of "dicentric chromosomes and rings" at low doses are too low to have predictive value. The different responses of subjects to radiation made it possible to categorize them according to their radiosensitivities and to generate separate dose-effect curves for radiosensitive, average, and radioresistant individuals, reducing the amount of error in retrospective dosimetry.
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Affiliation(s)
- Oksana Cherednichenko
- Laboratory of Genetic Monitoring, Institute of Genetics and Physiology, Almaty 050060, Kazakhstan.
| | - Anastassiya Pilyugina
- Laboratory of Genetic Monitoring, Institute of Genetics and Physiology, Almaty 050060, Kazakhstan
| | - Serikbai Nuraliev
- Laboratory of Genetic Monitoring, Institute of Genetics and Physiology, Almaty 050060, Kazakhstan
| | - Dinara Azizbekova
- Laboratory of Genetic Monitoring, Institute of Genetics and Physiology, Almaty 050060, Kazakhstan
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Alzeer RM, Al-Hadyan KS, Al-Harbi NM, Bin Judia SS, Almeer RS, Alsbeih GA. Cytotoxicity and Radiosensitizing Potentials of Pilosulin-3, a Recombinant Ant Venom, in Breast Cancer Cells. Toxins (Basel) 2023; 15:701. [PMID: 38133205 PMCID: PMC10747674 DOI: 10.3390/toxins15120701] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2023] [Revised: 12/05/2023] [Accepted: 12/11/2023] [Indexed: 12/23/2023] Open
Abstract
Venom peptides are promising agents in the development of unconventional anticancer therapeutic agents. This study explored the potential of Pilosulin-3, a recombinant peptide from the venom of the Australian jack jumper ant "Myrmecia pilosula", as a cytotoxic and radiosensitizing agent in MCF-7 and MDA-MB-231 breast cancer (BC) cell lines. Pilosulin-3's cytotoxicity was evaluated across a wide range of concentrations using a proliferation assay. Cell cycle progression and apoptosis were examined at the inhibitory concentration 25% (IC25) and IC50 of Pilosulin-3, both with and without a 4Gy X-ray irradiation dose. Radiosensitivity was assessed at IC25 using the clonogenic survival assay. The study revealed that Pilosulin-3 exerted a concentration-dependent cytotoxic effect, with IC25 and IC50 values of 0.01 and 0.5 µM, respectively. In silico screening indicated high selectivity of Pilosulin-3 peptide, which was predicted to be the most likely anticancer agent (PROB = 0.997) with low hemolytic activity (PROP = 0.176). Although Pilosulin-3 exhibited a significant (p < 0.05) G2/M cell cycle arrest in combination with radiation, there was no discernible effect on apoptosis induction or cell survival following irradiation. In conclusion, Pilosulin-3 proved to be cytotoxic to BC cells and induced a cytostatic effect (G2/M arrest) when combined with radiation. However, it did not enhance the efficacy of cell killing by irradiation. While it holds potential as a cytotoxic agent in breast cancer treatment, its application as a radiosensitizer does not find support in these results.
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Affiliation(s)
- Reema M. Alzeer
- Department of Zoology, College of Science, King Saud University, Riyadh 11541, Saudi Arabia
| | - Khaled S. Al-Hadyan
- Biomedical Physics Department, Radiation Biology Section, King Faisal Specialist Hospital & Research Centre, Riyadh 11211, Saudi Arabia
| | - Najla M. Al-Harbi
- Biomedical Physics Department, Radiation Biology Section, King Faisal Specialist Hospital & Research Centre, Riyadh 11211, Saudi Arabia
| | - Sara S. Bin Judia
- Biomedical Physics Department, Radiation Biology Section, King Faisal Specialist Hospital & Research Centre, Riyadh 11211, Saudi Arabia
| | - Rafa S. Almeer
- Department of Zoology, College of Science, King Saud University, Riyadh 11541, Saudi Arabia
| | - Ghazi A. Alsbeih
- Biomedical Physics Department, Radiation Biology Section, King Faisal Specialist Hospital & Research Centre, Riyadh 11211, Saudi Arabia
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Tobiasz J, Al-Harbi N, Bin Judia S, Majid Wakil S, Polanska J, Alsbeih G. Multivariate piecewise linear regression model to predict radiosensitivity using the association with the genome-wide copy number variation. Front Oncol 2023; 13:1154222. [PMID: 37849808 PMCID: PMC10577171 DOI: 10.3389/fonc.2023.1154222] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Accepted: 09/11/2023] [Indexed: 10/19/2023] Open
Abstract
Introduction The search for biomarkers to predict radiosensitivity is important not only to individualize radiotherapy of cancer patients but also to forecast radiation exposure risks. The aim of this study was to devise a machine-learning method to stratify radiosensitivity and to investigate its association with genome-wide copy number variations (CNVs) as markers of sensitivity to ionizing radiation. Methods We used the Affymetrix CytoScan HD microarrays to survey common CNVs in 129 fibroblast cell strains. Radiosensitivity was measured by the surviving fraction at 2 Gy (SF2). We applied a dynamic programming (DP) algorithm to create a piecewise (segmented) multivariate linear regression model predicting SF2 and to identify SF2 segment-related distinctive CNVs. Results SF2 ranged between 0.1384 and 0.4860 (mean=0.3273 The DP algorithm provided optimal segmentation by defining batches of radio-sensitive (RS), normally-sensitive (NS), and radio-resistant (RR) responders. The weighted mean relative errors (MRE) decreased with increasing the segments' number. The borders of the utmost segments have stabilized after partitioning SF2 into 5 subranges. Discussion The 5-segment model associated C-3SFBP marker with the most-RS and C-7IUVU marker with the most-RR cell strains. Both markers were mapped to gene regions (MCC and SLC1A6, respectively). In addition, C-3SFBP marker is also located in enhancer and multiple binding motifs. Moreover, for most CNVs significantly correlated with SF2, the radiosensitivity increased with the copy-number decrease.In conclusion, the DP-based piecewise multivariate linear regression method helps narrow the set of CNV markers from the whole radiosensitivity range to the smaller intervals of interest. Notably, SF2 partitioning not only improves the SF2 estimation but also provides distinctive markers. Ultimately, segment-related markers can be used, potentially with tissues' specific factors or other clinical data, to identify radiotherapy patients who are most RS and require reduced doses to avoid complications and the most RR eligible for dose escalation to improve outcomes.
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Affiliation(s)
- Joanna Tobiasz
- Department of Data Science and Engineering, Silesian University of Technology, Gliwice, Poland
- Department of Computer Graphics, Vision and Digital Systems, Silesian University of Technology, Gliwice, Poland
| | - Najla Al-Harbi
- Radiation Biology Section, Biomedical Physics Department, King Faisal Specialist Hospital and Research Centre, Riyadh, Saudi Arabia
| | - Sara Bin Judia
- Radiation Biology Section, Biomedical Physics Department, King Faisal Specialist Hospital and Research Centre, Riyadh, Saudi Arabia
| | - Salma Majid Wakil
- Department of Genetics, King Faisal Specialist Hospital and Research Centre, Riyadh, Saudi Arabia
- Laboratory of Neurogenetics, National Institutes of Health, Rockville, MD, United States
| | - Joanna Polanska
- Department of Data Science and Engineering, Silesian University of Technology, Gliwice, Poland
| | - Ghazi Alsbeih
- Radiation Biology Section, Biomedical Physics Department, King Faisal Specialist Hospital and Research Centre, Riyadh, Saudi Arabia
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Emerzian SR, Wu T, Vaidya R, Tang SY, Abergel RJ, Keaveny TM. Relative Effects of Radiation-Induced Changes in Bone Mass, Structure, and Tissue Material on Vertebral Strength in a Rat Model. J Bone Miner Res 2023; 38:1032-1042. [PMID: 37191221 PMCID: PMC10524463 DOI: 10.1002/jbmr.4828] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/01/2022] [Revised: 04/06/2023] [Accepted: 05/07/2023] [Indexed: 05/17/2023]
Abstract
The observed increased risk of fracture after cancer radiation therapy is presumably due to a radiation-induced reduction in whole-bone strength. However, the mechanisms for impaired strength remain unclear, as the increased fracture risk is not fully explained by changes in bone mass. To provide insight, a small animal model was used to determine how much of this whole-bone weakening effect for the spine is attributable to changes in bone mass, structure, and material properties of the bone tissue and their relative effects. Further, because women have a greater risk of fracture after radiation therapy than men, we investigated if sex had a significant influence on bone's response to irradiation. Fractionated in vivo irradiation (10 × 3 Gy) or sham irradiation (0 Gy) was administered daily to the lumbar spine in twenty-seven 17-week-old Sprague-Dawley rats (n = 6-7/sex/group). Twelve weeks after final treatment, animals were euthanized, and lumbar vertebrae (L4 and L5 ) were isolated. Using a combination of biomechanical testing, micro-CT-based finite element analysis, and statistical regression analysis, we separated out the effect of mass, structural, and tissue material changes on vertebral strength. Compared with the sham group (mean ± SD strength = 420 ± 88 N), the mean strength of the irradiated group was lower by 28% (117 N/420 N, p < 0.0001). Overall, the response of treatment did not differ with sex. By combining results from both general linear regression and finite element analyses, we calculated that mean changes in bone mass, structure, and material properties of the bone tissue accounted for 56% (66 N/117 N), 20% (23 N/117 N), and 24% (28 N/117 N), respectively, of the overall change in strength. As such, these results provide insight into why an elevated clinical fracture risk for patients undergoing radiation therapy is not well explained by changes in bone mass alone. © 2023 The Authors. Journal of Bone and Mineral Research published by Wiley Periodicals LLC on behalf of American Society for Bone and Mineral Research (ASBMR).
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Affiliation(s)
- Shannon R. Emerzian
- Department of Mechanical Engineering, University of
California, Berkeley, California, USA
| | - Tongge Wu
- Department of Mechanical Engineering, University of
California, Berkeley, California, USA
| | - Rachana Vaidya
- Department of Orthopaedic Surgery, Washington University,
St. Louis, Missouri, USA
| | - Simon Y. Tang
- Department of Orthopaedic Surgery, Washington University,
St. Louis, Missouri, USA
- Department of Biomedical Engineering, Washington
University, St. Louis, Missouri, USA
- Department of Material Science & Mechanical
Engineering, Washington University, St. Louis, Missouri, USA
| | - Rebecca J. Abergel
- Department of Nuclear Engineering, University of
California, Berkeley, California, USA
| | - Tony M. Keaveny
- Department of Mechanical Engineering, University of
California, Berkeley, California, USA
- Department of Bioengineering, University of California,
Berkeley, California, USA
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Grandt CL, Brackmann LK, Poplawski A, Schwarz H, Hummel-Bartenschlager W, Hankeln T, Kraemer C, Marini F, Zahnreich S, Schmitt I, Drees P, Mirsch J, Grabow D, Schmidberger H, Binder H, Hess M, Galetzka D, Marron M. Radiation-response in primary fibroblasts of long-term survivors of childhood cancer with and without second primary neoplasms: the KiKme study. Mol Med 2022; 28:105. [PMID: 36068491 PMCID: PMC9450413 DOI: 10.1186/s10020-022-00520-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2022] [Accepted: 07/28/2022] [Indexed: 02/07/2023] Open
Abstract
Background The etiology and most risk factors for a sporadic first primary neoplasm in childhood or subsequent second primary neoplasms are still unknown. One established causal factor for therapy-associated second primary neoplasms is the exposure to ionizing radiation during radiation therapy as a mainstay of cancer treatment. Second primary neoplasms occur in 8% of all cancer survivors within 30 years after the first diagnosis in Germany, but the underlying factors for intrinsic susceptibilities have not yet been clarified. Thus, the purpose of this nested case–control study was the investigation and comparison of gene expression and affected pathways in primary fibroblasts of childhood cancer survivors with a first primary neoplasm only or with at least one subsequent second primary neoplasm, and controls without neoplasms after exposure to a low and a high dose of ionizing radiation. Methods Primary fibroblasts were obtained from skin biopsies from 52 adult donors with a first primary neoplasm in childhood (N1), 52 with at least one additional primary neoplasm (N2+), as well as 52 without cancer (N0) from the KiKme study. Cultured fibroblasts were exposed to a high [2 Gray (Gy)] and a low dose (0.05 Gy) of X-rays. Messenger ribonucleic acid was extracted 4 h after exposure and Illumina-sequenced. Differentially expressed genes (DEGs) were computed using limma for R, selected at a false discovery rate level of 0.05, and further analyzed for pathway enrichment (right-tailed Fisher’s Exact Test) and (in-) activation (z ≥|2|) using Ingenuity Pathway Analysis. Results After 0.05 Gy, least DEGs were found in N0 (n = 236), compared to N1 (n = 653) and N2+ (n = 694). The top DEGs with regard to the adjusted p-value were upregulated in fibroblasts across all donor groups (SESN1, MDM2, CDKN1A, TIGAR, BTG2, BLOC1S2, PPM1D, PHLDB3, FBXO22, AEN, TRIAP1, and POLH). Here, we observed activation of p53 Signaling in N0 and to a lesser extent in N1, but not in N2+. Only in N0, DNA (excision-) repair (involved genes: CDKN1A, PPM1D, and DDB2) was predicted to be a downstream function, while molecular networks in N2+ were associated with cancer, as well as injury and abnormalities (among others, downregulation of MSH6, CCNE2, and CHUK). After 2 Gy, the number of DEGs was similar in fibroblasts of all donor groups and genes with the highest absolute log2 fold-change were upregulated throughout (CDKN1A, TIGAR, HSPA4L, MDM2, BLOC1SD2, PPM1D, SESN1, BTG2, FBXO22, PCNA, and TRIAP1). Here, the p53 Signaling-Pathway was activated in fibroblasts of all donor groups. The Mitotic Roles of Polo Like Kinase-Pathway was inactivated in N1 and N2+. Molecular Mechanisms of Cancer were affected in fibroblasts of all donor groups. P53 was predicted to be an upstream regulator in fibroblasts of all donor groups and E2F1 in N1 and N2+. Results of the downstream analysis were senescence in N0 and N2+, transformation of cells in N0, and no significant effects in N1. Seven genes were differentially expressed in reaction to 2 Gy dependent on the donor group (LINC00601, COBLL1, SESN2, BIN3, TNFRSF10A, EEF1AKNMT, and BTG2). Conclusion Our results show dose-dependent differences in the radiation response between N1/N2+ and N0. While mechanisms against genotoxic stress were activated to the same extent after a high dose in all groups, the radiation response was impaired after a low dose in N1/N2+, suggesting an increased risk for adverse effects including carcinogenesis, particularly in N2+. Supplementary Information The online version contains supplementary material available at 10.1186/s10020-022-00520-6.
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Affiliation(s)
- Caine Lucas Grandt
- Leibniz Institute for Prevention Research and Epidemiology, BIPS, Achterstraße 30, 28359, Bremen, Germany.,Faculty of Human and Health Sciences, University of Bremen, Bremen, Germany
| | - Lara Kim Brackmann
- Leibniz Institute for Prevention Research and Epidemiology, BIPS, Achterstraße 30, 28359, Bremen, Germany
| | - Alicia Poplawski
- Institute of Medical Biostatistics, Epidemiology and Informatics (IMBEI), University Medical Center of the Johannes Gutenberg University Mainz, Mainz, Germany
| | - Heike Schwarz
- Leibniz Institute for Prevention Research and Epidemiology, BIPS, Achterstraße 30, 28359, Bremen, Germany
| | | | - Thomas Hankeln
- Institute of Organismic and Molecular Evolution, Molecular Genetics and Genome Analysis, Johannes Gutenberg University Mainz, Mainz, Germany
| | - Christiane Kraemer
- Institute of Organismic and Molecular Evolution, Molecular Genetics and Genome Analysis, Johannes Gutenberg University Mainz, Mainz, Germany
| | - Federico Marini
- Institute of Medical Biostatistics, Epidemiology and Informatics (IMBEI), University Medical Center of the Johannes Gutenberg University Mainz, Mainz, Germany
| | - Sebastian Zahnreich
- Department of Radiation Oncology and Radiation Therapy, University Medical Center of the Johannes Gutenberg University Mainz, Mainz, Germany
| | - Iris Schmitt
- Department of Radiation Oncology and Radiation Therapy, University Medical Center of the Johannes Gutenberg University Mainz, Mainz, Germany
| | - Philipp Drees
- Department of Orthopaedics and Traumatology, University Medical Center of the Johannes Gutenberg University Mainz, Mainz, Germany
| | - Johanna Mirsch
- Radiation Biology and DNA Repair, Technical University of Darmstadt, Darmstadt, Germany
| | - Desiree Grabow
- Division of Childhood Cancer Epidemiology, German Childhood Cancer Registry, Institute of Medical Biostatistics, Epidemiology and Informatics (IMBEI), University Medical Center of the Johannes Gutenberg University Mainz, Mainz, Germany
| | - Heinz Schmidberger
- Department of Radiation Oncology and Radiation Therapy, University Medical Center of the Johannes Gutenberg University Mainz, Mainz, Germany
| | - Harald Binder
- Institute of Medical Biometry and Statistics, Faculty of Medicine and Medical Center, University of Freiburg, Freiburg, Germany
| | - Moritz Hess
- Institute of Medical Biometry and Statistics, Faculty of Medicine and Medical Center, University of Freiburg, Freiburg, Germany
| | - Danuta Galetzka
- Department of Radiation Oncology and Radiation Therapy, University Medical Center of the Johannes Gutenberg University Mainz, Mainz, Germany
| | - Manuela Marron
- Leibniz Institute for Prevention Research and Epidemiology, BIPS, Achterstraße 30, 28359, Bremen, Germany.
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Schuster B, Hecht M, Schmidt M, Haderlein M, Jost T, Büttner-Herold M, Weber K, Denz A, Grützmann R, Hartmann A, Geinitz H, Fietkau R, Distel LV. Influence of Gender on Radiosensitivity during Radiochemotherapy of Advanced Rectal Cancer. Cancers (Basel) 2021; 14:cancers14010148. [PMID: 35008311 PMCID: PMC8750676 DOI: 10.3390/cancers14010148] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2021] [Revised: 12/22/2021] [Accepted: 12/24/2021] [Indexed: 01/06/2023] Open
Abstract
Simple Summary In radiotherapy for rectal cancer, the treatment is identical for women and men. In recent years, the question has arisen whether there are gender differences in radiochemotherapy. We have investigated, in detail, differences between men and women, especially with regard to radiation sensitivity. We found no evidence for a difference in radiosensitivity between the sexes. Nevertheless, during radiochemotherapy, women experienced increased impairments in the quality of life, which, however, are restored in the subsequent period. One possibility is an increased sensitivity of women to chemotherapy. Abstract Gender is increasingly recognized as an important factor in medicine, although it has long been neglected in medical research in many areas. We have studied the influence of gender in advanced rectal cancer with a special focus on radiosensitivity. For this purpose, we studied a cohort of 495 men (84.1% ≥ T3, 63.6% N1, 17.6%, M1) and 215 women (84.2% ≥ T3, 56.7% N1, 22.8%, M1) who all suffered from advanced rectal cancer and were treated with radiochemotherapy. The energy deposited, DNA double-strand break (dsb) repair, occurrence of chromosomal aberrations, duration of therapy, tumor regression and tumor-infiltrating lymphocytes, laboratory parameters, quality of life and survival were assessed. The residual DNA dsb damage 24 h after irradiation in lymphocytes was identical in both sexes. Furthermore, chromosomal aberrations accurately reflecting radiosensitivity, were similar in both sexes. There were no gender-dependent differences in tumor regression, tumor-infiltrating lymphocytes and outcome indicating no differences in the radiosensitivity of cancer cells. The irradiated tumor volume in women was slightly lower than in men, related to body weight, no difference was observed. However, when the total energy deposited was calculated and related to the body weight, women were exposed to higher amounts of ionizing radiation. During radiochemotherapy, decreases in blood lymphocyte counts and albumin and several quality-of-life parameters such as nausea and vomiting, loss of appetite, and diarrhea were significantly worse in women. There is no difference in radiation sensitivity between men and women in both normal tissue and tumors. During radiochemotherapy, the quality of life deteriorates more in women than in men. However, women also recover quickly and there are no long-term differences in quality of life.
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Affiliation(s)
- Barbara Schuster
- Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, 91054 Erlangen, Germany; (B.S.); (M.H.); (M.S.); (M.H.); (T.J.); (R.F.)
- Comprehensive Cancer Center Erlangen-EMN (CCC ER-EMN), Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, 91054 Erlangen, Germany; (M.B.-H.); (K.W.); (A.D.); (R.G.); (A.H.)
| | - Markus Hecht
- Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, 91054 Erlangen, Germany; (B.S.); (M.H.); (M.S.); (M.H.); (T.J.); (R.F.)
- Comprehensive Cancer Center Erlangen-EMN (CCC ER-EMN), Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, 91054 Erlangen, Germany; (M.B.-H.); (K.W.); (A.D.); (R.G.); (A.H.)
| | - Manfred Schmidt
- Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, 91054 Erlangen, Germany; (B.S.); (M.H.); (M.S.); (M.H.); (T.J.); (R.F.)
- Comprehensive Cancer Center Erlangen-EMN (CCC ER-EMN), Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, 91054 Erlangen, Germany; (M.B.-H.); (K.W.); (A.D.); (R.G.); (A.H.)
| | - Marlen Haderlein
- Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, 91054 Erlangen, Germany; (B.S.); (M.H.); (M.S.); (M.H.); (T.J.); (R.F.)
- Comprehensive Cancer Center Erlangen-EMN (CCC ER-EMN), Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, 91054 Erlangen, Germany; (M.B.-H.); (K.W.); (A.D.); (R.G.); (A.H.)
| | - Tina Jost
- Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, 91054 Erlangen, Germany; (B.S.); (M.H.); (M.S.); (M.H.); (T.J.); (R.F.)
- Comprehensive Cancer Center Erlangen-EMN (CCC ER-EMN), Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, 91054 Erlangen, Germany; (M.B.-H.); (K.W.); (A.D.); (R.G.); (A.H.)
| | - Maike Büttner-Herold
- Comprehensive Cancer Center Erlangen-EMN (CCC ER-EMN), Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, 91054 Erlangen, Germany; (M.B.-H.); (K.W.); (A.D.); (R.G.); (A.H.)
- Department of Nephropathology, Institute of Pathology, Universitätsklinikum Erlangen, Friedrich-Alexander-University Erlangen-Nuremberg (FAU), 91054 Erlangen, Germany
| | - Klaus Weber
- Comprehensive Cancer Center Erlangen-EMN (CCC ER-EMN), Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, 91054 Erlangen, Germany; (M.B.-H.); (K.W.); (A.D.); (R.G.); (A.H.)
- Department of General and Visceral Surgery, Friedrich Alexander University, Krankenhausstraße 12, 91054 Erlangen, Germany
| | - Axel Denz
- Comprehensive Cancer Center Erlangen-EMN (CCC ER-EMN), Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, 91054 Erlangen, Germany; (M.B.-H.); (K.W.); (A.D.); (R.G.); (A.H.)
- Department of General and Visceral Surgery, Friedrich Alexander University, Krankenhausstraße 12, 91054 Erlangen, Germany
| | - Robert Grützmann
- Comprehensive Cancer Center Erlangen-EMN (CCC ER-EMN), Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, 91054 Erlangen, Germany; (M.B.-H.); (K.W.); (A.D.); (R.G.); (A.H.)
- Department of General and Visceral Surgery, Friedrich Alexander University, Krankenhausstraße 12, 91054 Erlangen, Germany
| | - Arndt Hartmann
- Comprehensive Cancer Center Erlangen-EMN (CCC ER-EMN), Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, 91054 Erlangen, Germany; (M.B.-H.); (K.W.); (A.D.); (R.G.); (A.H.)
- Institute of Pathology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, 91054 Erlangen, Germany
| | - Hans Geinitz
- Department of Radiation Oncology, Ordensklinikum Linz, Barmherzige Schwestern, 4010 Linz, Austria;
| | - Rainer Fietkau
- Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, 91054 Erlangen, Germany; (B.S.); (M.H.); (M.S.); (M.H.); (T.J.); (R.F.)
- Comprehensive Cancer Center Erlangen-EMN (CCC ER-EMN), Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, 91054 Erlangen, Germany; (M.B.-H.); (K.W.); (A.D.); (R.G.); (A.H.)
| | - Luitpold V. Distel
- Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, 91054 Erlangen, Germany; (B.S.); (M.H.); (M.S.); (M.H.); (T.J.); (R.F.)
- Comprehensive Cancer Center Erlangen-EMN (CCC ER-EMN), Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, 91054 Erlangen, Germany; (M.B.-H.); (K.W.); (A.D.); (R.G.); (A.H.)
- Correspondence: ; Tel.: +49-9131-85-32312
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8
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Cosar R, Özen A, Tastekin E, Süt N, Cakina S, Demir S, Parlar S, Nurlu D, Kavuzlu Y, Koçak Z. Does Gender Difference Effect Radiation-Induced Lung Toxicity? An Experimental Study by Genetic and Histopathological Predictors. Radiat Res 2021; 197:280-288. [PMID: 34735567 DOI: 10.1667/rade-21-00075.1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2021] [Accepted: 09/30/2021] [Indexed: 11/03/2022]
Abstract
Several studies have reported differences in radiation toxicity between the sexes, but these differences have not been tested with respect to histopathology and genes. This animal study aimed to show an association between histopathological findings of radiation-induced lung toxicity and the genes ATM, SOD2, TGF-β1, XRCC1, XRCC3 and HHR2. In all, 120 animals were randomly divided into 2 control groups (male and female) and experimental groups comprising fifteen rats stratified by sex, radiotherapy (0 Gy vs. 10 Gy), and time to sacrifice (6, 12, and 24 weeks postirradiation). Histopathological evaluations for lung injury, namely, intra-alveolar edema, alveolar neutrophils, intra-alveolar erythrocytes, activated macrophages, intra-alveolar fibrosis, hyaline arteriosclerosis, and collapse were performed under a light microscope using a grid system; the evaluations were semi quantitatively scored. Then, the alveolar wall thickness was measured. Real-time quantitative reverse transcription PCR (RT-qPCR) was used to determine gene expression differences in ATM, TGF-β1, XRCC1, XRCC3, SOD2 and HHR2L among the groups. Histopathological data showed that radiation-induced acute, subacute, and chronic lung toxicity were worse in male rats. The expression levels of the evaluated genes were significantly higher in females than males in the control group, but this difference was lost over time after radiotherapy. Less toxicity in females may be attributable to the fact that the expression of the evaluated genes was higher in normal lung tissue in females than in males and the changes in gene expression patterns in the postradiotherapy period played a protective role in females. Additional data related to pulmonary function, lung weights, imaging, or outcomes are needed to support this data that is based on histopathology alone.
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Affiliation(s)
- Rusen Cosar
- Department of Radiation Oncology, Trakya University, Faculty of Medicine, Edirne, Turkey
| | - Alaattin Özen
- Department of Radiation Oncology, Trakya University, Faculty of Medicine, Edirne, Turkey
| | - Ebru Tastekin
- Department of Pathology, Trakya University, Faculty of Medicine, Edirne, Turkey
| | - Necdet Süt
- Department of Biostatistics and Informatics, Trakya University, Faculty of Medicine, Edirne, Turkey
| | - Suat Cakina
- Department of Radiation Oncology, Trakya University, Faculty of Medicine, Edirne, Turkey
| | - Selma Demir
- Department of Medical Genetics, Trakya University, Faculty of Medicine, Edirne, Turkey
| | - Sule Parlar
- Department of Radiation Oncology, Trakya University, Faculty of Medicine, Edirne, Turkey
| | - Dilek Nurlu
- Department of Radiation Oncology, Trakya University, Faculty of Medicine, Edirne, Turkey
| | - Yusuf Kavuzlu
- Department of Radiation Oncology, Trakya University, Faculty of Medicine, Edirne, Turkey
| | - Zafer Koçak
- Department of Radiation Oncology, Trakya University, Faculty of Medicine, Edirne, Turkey
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9
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Hohneck A, Custodis F, Rosenkaimer S, Hofheinz R, Maier S, Akin I, Borggrefe M, Gerhards S. Gender aspects in cardiooncology. Eur J Public Health 2021; 31:1170-1176. [PMID: 34516614 DOI: 10.1093/eurpub/ckab146] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
BACKGROUND Cardiooncology is a relatively new subspeciality, investigating the side effects of cytoreductive therapies on the cardiovascular (CV) system. Gender differences are well known in oncological and CV diseases, but are less elucidated in cardiooncological collectives. METHODS Five hundred and fifty-one patients (278 male, 273 female) with diagnosed cancer who underwent regular cardiological surveillance were enrolled in the 'MAnnheim Registry for CardioOncology' and followed over a median of 41 (95% confidence interval: 40-43) months. RESULTS Female patients were younger at the time of first cancer diagnosis [median 60 (range 50-70) vs. 66 (55-75), P = 0.0004], while the most common tumour was breast cancer (49.8%). Hyperlipidaemia was more often present in female patients (37% vs. 25%, P = 0.001). Male patients had a higher cancer susceptibility than female patients. They suffered more often from hypertension (51% vs. 67%, P = 0.0002) or diabetes (14% vs. 21%, P = 0.02) and revealed more often vitamin D deficiency [(U/l) median 26.0 (range 17-38) vs. 16 (9-25), P = 0.002] and anaemia [(g/dl) median 11.8 (range 10.4-12.9) vs. 11.7 (9.6-13.6), P = 0.51]. During follow-up, 140 patients died (male 77, female 63; P = 0.21). An increased mortality rate was observed in male patients (11.4% vs. 14%, P = 0.89), with even higher mortality rates of up to 18.9% vs. 7.7% (P = 0.02) considering tumours that can affect both sexes compared. CONCLUSIONS Although female patients were younger at the time of first cancer diagnosis, male patients had both higher cancer susceptibility and an increased mortality risk. Concomitant CV diseases were more common in male patients.
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Affiliation(s)
- Anna Hohneck
- First Department of Medicine (Cardiology), University Medical Centre Mannheim, Medical Faculty Mannheim, University of Heidelberg, European Centre for AngioScience (ECAS), Mannheim, Germany.,DZHK (German Centre for Cardiovascular Research) Partner Site Heidelberg/Mannheim, Mannheim, Germany
| | - Florian Custodis
- Second Department of Medicine, Klinikum Saarbruecken, Saarbruecken, Germany
| | - Stephanie Rosenkaimer
- First Department of Medicine (Cardiology), University Medical Centre Mannheim, Medical Faculty Mannheim, University of Heidelberg, European Centre for AngioScience (ECAS), Mannheim, Germany
| | - Ralf Hofheinz
- Third Department of Medicine (Oncology), Day Treatment Center (TTZ), Interdisciplinary Tumor Center Mannheim (ITM), Medical Faculty Mannheim, University of Heidelberg, Mannheim, Germany
| | - Sandra Maier
- First Department of Medicine (Cardiology), University Medical Centre Mannheim, Medical Faculty Mannheim, University of Heidelberg, European Centre for AngioScience (ECAS), Mannheim, Germany
| | - Ibrahim Akin
- First Department of Medicine (Cardiology), University Medical Centre Mannheim, Medical Faculty Mannheim, University of Heidelberg, European Centre for AngioScience (ECAS), Mannheim, Germany.,DZHK (German Centre for Cardiovascular Research) Partner Site Heidelberg/Mannheim, Mannheim, Germany
| | - Martin Borggrefe
- First Department of Medicine (Cardiology), University Medical Centre Mannheim, Medical Faculty Mannheim, University of Heidelberg, European Centre for AngioScience (ECAS), Mannheim, Germany.,DZHK (German Centre for Cardiovascular Research) Partner Site Heidelberg/Mannheim, Mannheim, Germany
| | - Stefan Gerhards
- First Department of Medicine (Cardiology), University Medical Centre Mannheim, Medical Faculty Mannheim, University of Heidelberg, European Centre for AngioScience (ECAS), Mannheim, Germany
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10
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Garrett L, Ung MC, Einicke J, Zimprich A, Fenzl F, Pawliczek D, Graw J, Dalke C, Hölter SM. Complex Long-term Effects of Radiation on Adult Mouse Behavior. Radiat Res 2021; 197:67-77. [PMID: 34237145 DOI: 10.1667/rade-20-00281.1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2020] [Accepted: 05/24/2021] [Indexed: 11/03/2022]
Abstract
We have shown previously that a single radiation event (0.063, 0.125 or 0.5 Gy, 0.063 Gy/min) in adult mice (age 10 weeks) can have delayed dose-dependent effects on locomotor behavior 18 months postirradiation. The highest dose (0.5 Gy) reduced, whereas the lowest dose (0.063 Gy) increased locomotor activity at older age independent of sex or genotype. In the current study we investigated whether higher doses administered at a higher dose rate (0.5, 1 or 2 Gy, 0.3 Gy/min) at the same age (10 weeks) cause stronger or earlier effects on a range of behaviors, including locomotion, anxiety, sensorimotor and cognitive behavior. There were clear dose-dependent effects on spontaneous locomotor and exploratory activity, anxiety-related behavior, body weight and affiliative social behavior independent of sex or genotype of wild-type and Ercc2S737P heterozygous mice on a mixed C57BL/6JG and C3HeB/FeJ background. In addition, smaller genotype- and dose-dependent radiation effects on working memory were evident in males, but not in females. The strongest dose-dependent radiation effects were present 4 months postirradiation, but only effects on affiliative social behaviors persisted until 12 months postirradiation. The observed radiation-induced behavioral changes were not related to alterations in the eye lens, as 4 months postirradiation anterior and posterior parts of the lens were still normal. Overall, we did not find any sensitizing effect of the mutation towards radiation effects in vivo.
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Affiliation(s)
- Lillian Garrett
- Helmholtz Zentrum München, German Research Centre for Environmental Health, Institute of Developmental Genetics, Neuherberg, Germany
| | - Marie-Claire Ung
- Helmholtz Zentrum München, German Research Centre for Environmental Health, Institute of Developmental Genetics, Neuherberg, Germany
| | - Jan Einicke
- Helmholtz Zentrum München, German Research Centre for Environmental Health, Institute of Developmental Genetics, Neuherberg, Germany
| | - Annemarie Zimprich
- Technical University Munich, School of Life Science Weihenstephan, Freising, Germany
| | - Felix Fenzl
- Technical University Munich, School of Life Science Weihenstephan, Freising, Germany
| | - Daniel Pawliczek
- Helmholtz Zentrum München, German Research Centre for Environmental Health, Institute of Developmental Genetics, Neuherberg, Germany
| | - Jochen Graw
- Helmholtz Zentrum München, German Research Centre for Environmental Health, Institute of Developmental Genetics, Neuherberg, Germany
| | - Claudia Dalke
- Helmholtz Zentrum München, German Research Centre for Environmental Health, Institute of Developmental Genetics, Neuherberg, Germany
| | - Sabine M Hölter
- Helmholtz Zentrum München, German Research Centre for Environmental Health, Institute of Developmental Genetics, Neuherberg, Germany.,Technical University Munich, School of Life Science Weihenstephan, Freising, Germany
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11
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Alsbeih G, Al-Harbi N, Ismail S, Story M. Impaired DNA Repair Fidelity in a Breast Cancer Patient With Adverse Reactions to Radiotherapy. Front Public Health 2021; 9:647563. [PMID: 34164366 PMCID: PMC8216558 DOI: 10.3389/fpubh.2021.647563] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2020] [Accepted: 04/20/2021] [Indexed: 11/24/2022] Open
Abstract
We tested the hypothesis that differences in DNA double-strand break (DSB) repair fidelity underlies differences in individual radiosensitivity and, consequently, normal tissue reactions to radiotherapy. Fibroblast cultures derived from a radio-sensitive (RS) breast cancer patient with grade 3 adverse reactions to radiotherapy were compared with normal control (NC) and hyper-radiosensitive ataxia-telangiectasia mutated (ATM) cells. DSB repair and repair fidelity were studied by Southern blotting and hybridization to Alu repetitive sequence and to a specific 3.2-Mbp NotI restriction fragment on chromosome 21, respectively. Results for DNA repair kinetics using the NotI fidelity assay showed significant differences (P < 0.001) with higher levels of misrepaired (misrejoined and unrejoined) DSBs in RS and ATM compared with NC. At 24-h postradiation, the relative fractions of misrepaired DSBs were 10.64, 23.08, and 44.70% for NC, RS, and ATM, respectively. The Alu assay showed significant (P < 0.05) differences in unrepaired DSBs only between the ATM and both NC and RS at the time points of 12 and 24 h. At 24 h, the relative percentages of DSBs unrepaired were 1.33, 3.43, and 12.13% for NC, RS, and ATM, respectively. The comparison between the two assays indicated an average of 5-fold higher fractions of misrepaired (NotI assay) than unrepaired (Alu assay) DSBs. In conclusion, this patient with increased radiotoxicity displayed more prominent misrepaired than unrepaired DSBs, suggesting that DNA repair fidelity is a potential marker for the adverse reactions to radiotherapy. More studies are required to confirm these results and further develop DSB repair fidelity as a hallmark biomarker for interindividual differences in radiosensitivity.
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Affiliation(s)
- Ghazi Alsbeih
- Radiation Biology Section, Biomedical Physics Department, King Faisal Specialist Hospital and Research Centre, Riyadh, Saudi Arabia.,Experimental Radiation Oncology Department, University of Texas M.D. Anderson Cancer Center, Houston, TX, United States.,College of Medicine, Alfaisal University, Riyadh, Saudi Arabia
| | - Najla Al-Harbi
- Radiation Biology Section, Biomedical Physics Department, King Faisal Specialist Hospital and Research Centre, Riyadh, Saudi Arabia
| | - Sheikh Ismail
- Experimental Radiation Oncology Department, University of Texas M.D. Anderson Cancer Center, Houston, TX, United States.,Commercialization & Entrepreneurship Department, Texas A&M University, Bellaire, TX, United States
| | - Michael Story
- Experimental Radiation Oncology Department, University of Texas M.D. Anderson Cancer Center, Houston, TX, United States.,Radiation Oncology Department, University of Texas Southwestern Medical Centre, Dallas, TX, United States
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12
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Nemec-Bakk AS, Niccoli S, Davidson C, Roy D, Stoa L, Sreetharan S, Simard A, Boreham DR, Wilson JY, Tai T, Lees SJ, Khaper N. Lasting Effects of Low to Non-Lethal Radiation Exposure during Late Gestation on Offspring's Cardiac Metabolism and Oxidative Stress. Antioxidants (Basel) 2021; 10:antiox10050816. [PMID: 34065524 PMCID: PMC8160807 DOI: 10.3390/antiox10050816] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2021] [Revised: 05/12/2021] [Accepted: 05/15/2021] [Indexed: 01/24/2023] Open
Abstract
Ionizing radiation (IR) is known to cause fetal programming, but the physiological effects of low-dose IR are not fully understood. This study examined the effect of low (50 mGy) to non-lethal (300 and 1000 mGy) radiation exposure during late gestation on cardiac metabolism and oxidative stress in adult offspring. Pregnant C57BL/6J mice were exposed to 50, 300, or 1000 mGy of gamma radiation or Sham irradiation on gestational day 15. Sixteen weeks after birth, 18F-Fluorodeoxyglucose (FDG) uptake was examined in the offspring using Positron Emission Tomography imaging. Western blot was used to determine changes in oxidative stress, antioxidants, and insulin signaling related proteins. Male and female offspring from irradiated dams had lower body weights when compared to the Sham. 1000 mGy female offspring demonstrated a significant increase in 18F-FDG uptake, glycogen content, and oxidative stress. 300 and 1000 mGy female mice exhibited increased superoxide dismutase activity, decreased glutathione peroxidase activity, and decreased reduced/oxidized glutathione ratio. We conclude that non-lethal radiation during late gestation can alter glucose uptake and increase oxidative stress in female offspring. These data provide evidence that low doses of IR during the third trimester are not harmful but higher, non-lethal doses can alter cardiac metabolism later in life and sex may have a role in fetal programming.
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Affiliation(s)
- Ashley S. Nemec-Bakk
- Department of Science and Environmental Studies, Lakehead University, Thunder Bay, ON P7B 5E1, Canada;
| | - Sarah Niccoli
- Department of Biology, Lakehead University, Thunder Bay, ON P7B 5E1, Canada; (S.N.); (C.D.); (S.J.L.)
| | - Caitlund Davidson
- Department of Biology, Lakehead University, Thunder Bay, ON P7B 5E1, Canada; (S.N.); (C.D.); (S.J.L.)
| | - Danika Roy
- Northern Ontario School of Medicine, Laurentian University, Sudbury, ON P3E 2C6, Canada; (D.R.); (A.S.); (D.R.B.); (T.C.T.)
| | - Lisa Stoa
- Department of Biology, McMaster University, Hamilton, ON L8S 4L8, Canada; (L.S.); (S.S.); (J.Y.W.)
| | - Shayenthiran Sreetharan
- Department of Biology, McMaster University, Hamilton, ON L8S 4L8, Canada; (L.S.); (S.S.); (J.Y.W.)
| | - Alain Simard
- Northern Ontario School of Medicine, Laurentian University, Sudbury, ON P3E 2C6, Canada; (D.R.); (A.S.); (D.R.B.); (T.C.T.)
| | - Douglas R. Boreham
- Northern Ontario School of Medicine, Laurentian University, Sudbury, ON P3E 2C6, Canada; (D.R.); (A.S.); (D.R.B.); (T.C.T.)
- Northern Ontario School of Medicine, Lakehead University, Thunder Bay, ON P7B 5E1, Canada
- Biomolecular Sciences, Laurentian University, Sudbury, ON P3E 2C6, Canada
| | - Joanna Y. Wilson
- Department of Biology, McMaster University, Hamilton, ON L8S 4L8, Canada; (L.S.); (S.S.); (J.Y.W.)
| | - T.C. Tai
- Northern Ontario School of Medicine, Laurentian University, Sudbury, ON P3E 2C6, Canada; (D.R.); (A.S.); (D.R.B.); (T.C.T.)
- Northern Ontario School of Medicine, Lakehead University, Thunder Bay, ON P7B 5E1, Canada
- Biomolecular Sciences, Laurentian University, Sudbury, ON P3E 2C6, Canada
| | - Simon J. Lees
- Department of Biology, Lakehead University, Thunder Bay, ON P7B 5E1, Canada; (S.N.); (C.D.); (S.J.L.)
- Northern Ontario School of Medicine, Laurentian University, Sudbury, ON P3E 2C6, Canada; (D.R.); (A.S.); (D.R.B.); (T.C.T.)
- Northern Ontario School of Medicine, Lakehead University, Thunder Bay, ON P7B 5E1, Canada
| | - Neelam Khaper
- Department of Biology, Lakehead University, Thunder Bay, ON P7B 5E1, Canada; (S.N.); (C.D.); (S.J.L.)
- Northern Ontario School of Medicine, Laurentian University, Sudbury, ON P3E 2C6, Canada; (D.R.); (A.S.); (D.R.B.); (T.C.T.)
- Northern Ontario School of Medicine, Lakehead University, Thunder Bay, ON P7B 5E1, Canada
- Biomolecular Sciences, Laurentian University, Sudbury, ON P3E 2C6, Canada
- Correspondence:
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13
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Ung MC, Garrett L, Dalke C, Leitner V, Dragosa D, Hladik D, Neff F, Wagner F, Zitzelsberger H, Miller G, de Angelis MH, Rößler U, Vogt Weisenhorn D, Wurst W, Graw J, Hölter SM. Dose-dependent long-term effects of a single radiation event on behaviour and glial cells. Int J Radiat Biol 2020; 97:156-169. [PMID: 33264576 DOI: 10.1080/09553002.2021.1857455] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
PURPOSE The increasing use of low-dose ionizing radiation in medicine requires a systematic study of its long-term effects on the brain, behaviour and its possible association with neurodegenerative disease vulnerability. Therefore, we analysed the long-term effects of a single low-dose irradiation exposure at 10 weeks of age compared to medium and higher doses on locomotor, emotion-related and sensorimotor behaviour in mice as well as on hippocampal glial cell populations. MATERIALS AND METHODS We determined the influence of radiation dose (0, 0.063, 0.125 or 0.5 Gy), time post-irradiation (4, 12 and 18 months p.i.), sex and genotype (wild type versus mice with Ercc2 DNA repair gene point mutation) on behaviour. RESULTS The high dose (0.5 Gy) had early-onset adverse effects at 4 months p.i. on sensorimotor recruitment and late-onset negative locomotor effects at 12 and 18 months p.i. Notably, the low dose (0.063 Gy) produced no early effects but subtle late-onset (18 months) protective effects on sensorimotor recruitment and exploratory behaviour. Quantification and morphological characterization of the microglial and the astrocytic cells of the dentate gyrus 24 months p.i. indicated heightened immune activity after high dose irradiation (0.125 and 0.5 Gy) while conversely, low dose (0.063 Gy) induced more neuroprotective features. CONCLUSION This is one of the first studies demonstrating such long-term and late-onset effects on brain and behaviour after a single radiation event in adulthood.
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Affiliation(s)
- Marie-Claire Ung
- Institute of Developmental Genetics, Helmholtz Zentrum München, German Research Centre for Environmental Health, Neuherberg, Germany.,Institute of Pathology, Helmholtz Zentrum München, German Research Centre for Environmental Health, Neuherberg, Germany.,Institute of Radiation Medicine, Helmholtz Zentrum München, German Research Centre for Environmental Health, Neuherberg, Germany.,Research Unit of Radiation Cytogenetics, Helmholtz Zentrum München, German Research Centre for Environmental Health, Neuherberg, Germany.,German Mouse Clinic, Institute of Experimental Genetics, Helmholtz Zentrum München, German Research Centre for Environmental Health, Neuherberg, Germany
| | - Lillian Garrett
- Institute of Developmental Genetics, Helmholtz Zentrum München, German Research Centre for Environmental Health, Neuherberg, Germany.,German Mouse Clinic, Institute of Experimental Genetics, Helmholtz Zentrum München, German Research Centre for Environmental Health, Neuherberg, Germany
| | - Claudia Dalke
- Institute of Developmental Genetics, Helmholtz Zentrum München, German Research Centre for Environmental Health, Neuherberg, Germany
| | | | - Daniel Dragosa
- Technische Universität München, Freising-Weihenstephan, Germany
| | - Daniela Hladik
- Technische Universität München, Freising-Weihenstephan, Germany
| | - Frauke Neff
- Institute of Pathology, Helmholtz Zentrum München, German Research Centre for Environmental Health, Neuherberg, Germany
| | - Florian Wagner
- Institute of Radiation Medicine, Helmholtz Zentrum München, German Research Centre for Environmental Health, Neuherberg, Germany
| | - Horst Zitzelsberger
- Research Unit of Radiation Cytogenetics, Helmholtz Zentrum München, German Research Centre for Environmental Health, Neuherberg, Germany
| | - Gregor Miller
- German Mouse Clinic, Institute of Experimental Genetics, Helmholtz Zentrum München, German Research Centre for Environmental Health, Neuherberg, Germany
| | - Martin Hrabĕ de Angelis
- German Mouse Clinic, Institute of Experimental Genetics, Helmholtz Zentrum München, German Research Centre for Environmental Health, Neuherberg, Germany.,Department of Experimental Genetics, School of Life Science Weihenstephan, Technische Universität München, Freising, Germany.,German Center for Diabetes Research (DZD), Neuherberg, Germany
| | - Ute Rößler
- Federal Office for Radiation Protection, Department of Radiation Protection and Health, Neuherberg, Germany
| | - Daniela Vogt Weisenhorn
- Institute of Developmental Genetics, Helmholtz Zentrum München, German Research Centre for Environmental Health, Neuherberg, Germany
| | - Wolfgang Wurst
- Institute of Developmental Genetics, Helmholtz Zentrum München, German Research Centre for Environmental Health, Neuherberg, Germany.,Chair of Developmental Genetics, Faculty of Life and Food Sciences Weihenstephan, Technische Universität München, Freising-Weihenstephan, Germany.,German Center for Neurodegenerative Diseases (DZNE), Site Munich, Munich, Germany.,Munich Cluster for Systems Neurology (SyNergy), Munich, Germany
| | - Jochen Graw
- Institute of Developmental Genetics, Helmholtz Zentrum München, German Research Centre for Environmental Health, Neuherberg, Germany
| | - Sabine M Hölter
- Institute of Developmental Genetics, Helmholtz Zentrum München, German Research Centre for Environmental Health, Neuherberg, Germany.,German Mouse Clinic, Institute of Experimental Genetics, Helmholtz Zentrum München, German Research Centre for Environmental Health, Neuherberg, Germany.,Technische Universität München, Freising-Weihenstephan, Germany
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14
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Akhmadullina YR, Vozilova AV, Akleyev AV. Study of the DNA Damage in Peripheral Blood Lymphocytes Using Micronucleus Test in Residents of the Techa Riverside Villages Who Were Chronically Exposed in Utero and Postnatally. RUSS J GENET+ 2020. [DOI: 10.1134/s102279542004002x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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15
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Son HJ, Kim N, Song CH, Lee SM, Lee HN, Surh YJ. 17β-Estradiol reduces inflammation and modulates antioxidant enzymes in colonic epithelial cells. Korean J Intern Med 2020; 35:310-319. [PMID: 30336658 PMCID: PMC7061017 DOI: 10.3904/kjim.2018.098] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/11/2018] [Accepted: 09/16/2018] [Indexed: 02/08/2023] Open
Abstract
BACKGROUND/AIMS Estrogen is known to have protective effect in colorectal cancer development. The aims of this study are to investigate whether estradiol treatment reduces inflammation in CCD841CoN, a female human colonic epithelial cell line and to uncover underlying mechanisms of estradiol effects. METHODS 17β-Estradiol (E2) effect was measured by Western blot after inducing inf lammation of CCD841CoN by tumor necrosis factor α (TNF-α). Expression levels of estrogen receptor α (ERα) and β (ERβ), cyclooxygenase-2 (COX-2), nuclear factor-κB (NF-κB), heme oxygenase-1 (HO-1), and NAD(P)H-quinone oxidoreductase-1 (NQO-1) were also evaluated. RESULTS E2 treatment induced expression of ERβ but did not increase that of ERα. E2 treatment for 48 hours significantly elevated the expression of anti-oxidant enzymes, HO-1 and NQO-1. TNF-α treatment significantly increased the level of activated NF-κB (p < 0.05), and this increase was significantly suppressed by treatment of 10 nM of E2 (p < 0.05). E2 treatment ameliorated TNF-α-induced COX-2 expression and decrease of HO-1 expression. 4-(2-phenyl-5,7-bis(trifluoromethyl) pyrazolo(1,5-a)pyrimidin-3-yl)phenol (PHTPP), antagonist of ERβ, removed the inhibitory effect of E2 in the TNF-α-induced COX-2 expression (p = 0.05). CONCLUSION Estrogen seems to inhibit inflammation in female human colonic epithelial cell lines, through down-regulation of NF-κB and COX-2 expression and induction of anti-oxidant enzymes such as HO-1 and NQO-1.
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Affiliation(s)
- Hee Jin Son
- Seoul National University College of Medicine, Seoul, Korea
| | - Nayoung Kim
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Korea
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, Korea
- Correspondence to Nayoung Kim, M.D. Department of Internal Medicine, Seoul National University Bundang Hospital, 82 Gumi-ro 173beon-gil, Bundang-gu, Seongnam 13620, Korea Tel: +82-31-787-7008 Fax: + 82-31-787-4051 E-mail:
| | - Chin-Hee Song
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Korea
| | - Sun Min Lee
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Korea
| | - Ha-Na Lee
- Tumor Microenvironment Global Core Research Center, Seoul National University College of Pharmacy, Seoul, Korea
| | - Young-Joon Surh
- Tumor Microenvironment Global Core Research Center, Seoul National University College of Pharmacy, Seoul, Korea
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Vasin MV, Ushakov IB. Potential Ways to Increase Body Resistance to Damaging Action of Ionizing Radiation with Radiomitigators. ACTA ACUST UNITED AC 2020. [DOI: 10.1134/s2079086419060082] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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De Courcy L, Bezak E, Marcu LG. Gender-dependent radiotherapy: The next step in personalised medicine? Crit Rev Oncol Hematol 2020; 147:102881. [PMID: 31991224 DOI: 10.1016/j.critrevonc.2020.102881] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2019] [Revised: 12/03/2019] [Accepted: 01/17/2020] [Indexed: 12/11/2022] Open
Abstract
Individuals do not react to radiation in a homogeneous manner. Recent radiogenomic research has proven that individual polymorphisms can correlate with treatment response most likely due to variation in the ability to recognise and repair DNA breaks. The difference in radiosensitivity between genders has been well documented, yet most radiotherapeutic guidelines are based solely on population averages rather than demographic subgroups such as age, race and gender. This paper is a review of the burgeoning literature available on the differences in efficacy and outcome of radiotherapy between genders. The work examines the effect of radiation on gender both from a tumour control as well as normal tissue toxicity perspective. While the literature reporting such findings is limited, the results show a small but significant difference in response to radiotherapy between sexes. Prospective and retrospective studies for evaluating these gender-specific differences are encouraged as a next step in personalised medicine.
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Affiliation(s)
- Louis De Courcy
- School of Medicine, University College Dublin, Belfield, Dublin 4, Ireland
| | - Eva Bezak
- Cancer Research Institute and School of Health Sciences, University of South Australia, Adelaide, SA, 5001, Australia; Department of Physics, University of Adelaide, North Terrace, Adelaide, SA, 5005, Australia
| | - Loredana G Marcu
- Cancer Research Institute and School of Health Sciences, University of South Australia, Adelaide, SA, 5001, Australia; Faculty of Informatics & Science, University of Oradea, Oradea, 410087, Romania.
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18
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Stålhammar G, See TR, Filì M, Seregard S. No Gender Differences in Long-Term Survival after Brachytherapy of 1,541 Patients with Uveal Melanoma. Ocul Oncol Pathol 2019; 5:432-439. [PMID: 31768367 PMCID: PMC6873032 DOI: 10.1159/000497186] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2018] [Revised: 01/23/2019] [Indexed: 01/04/2023] Open
Abstract
BACKGROUND In several malignancies, gender-based survival differences after specific therapeutic interventions have been demonstrated. It is not known whether such differences exist after plaque brachytherapy of uveal melanoma. METHODS All patients who received brachytherapy for uveal melanoma at St. Erik Eye Hospital from November 1, 1979 through November 20, 2017 were included (n = 1,541). Retrospective data were retrieved including baseline patient and tumor characteristics, brachytherapy nuclide (ruthenium-106 or iodine-125), radiation dose, treatment duration, tumor relapses, date of metastasis, and cause of death. RESULTS A total of 775 men and 766 women were treated with plaque brachytherapy. There were no significant differences between the genders in baseline characteristics, treatment, or follow-up. Men and women had similar rates of tumor relapses, hazard for repeated brachytherapy (men vs. women 0.8, p = 0.47), enucleation-free survival, and survival after detection of metastasis. Five-, 10-, and 15-year melanoma-related mortality was 14, 24, and 27% for men and 15, 26, and 32% for women, respectively. There were no significant differences in hazard for melanoma-related mortality (men vs. women 0.9, p = 0.32), median Kaplan-Meier disease-specific survival (men 18.2 years, women 15.5 years, p = 0.22), or median overall survival (men 13.5 years, women 12.6 years, p = 0.60). CONCLUSION There are no relevant differences between men and women in ocular or patient survival after brachytherapy for uveal melanoma.
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Affiliation(s)
- Gustav Stålhammar
- St. Erik Eye Hospital, Stockholm, Sweden
- Department of Clinical Neuroscience, Karolinska Institutet, Stockholm, Sweden
- Departments of Ophthalmology and Pathology, Emory University School of Medicine, Atlanta, Georgia, USA
| | - Thonnie Rose See
- Departments of Ophthalmology and Pathology, Emory University School of Medicine, Atlanta, Georgia, USA
| | - Maria Filì
- St. Erik Eye Hospital, Stockholm, Sweden
| | - Stefan Seregard
- St. Erik Eye Hospital, Stockholm, Sweden
- Department of Clinical Neuroscience, Karolinska Institutet, Stockholm, Sweden
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19
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Kang YM, Chao TF, Wang TH, Hu YW. Increased risk of pelvic fracture after radiotherapy in rectal cancer survivors: A propensity matched study. Cancer Med 2019; 8:3639-3647. [PMID: 31104362 PMCID: PMC6639197 DOI: 10.1002/cam4.2030] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2018] [Revised: 01/24/2019] [Accepted: 01/27/2019] [Indexed: 12/12/2022] Open
Abstract
To determine whether radiotherapy (RT) can increase pelvic fracture risk in rectal cancer survivors. Rectal cancer patients who underwent curative surgery between 1996 and 2011 in Taiwan were retrospectively studied using the National Health Insurance Research Database (NHIRD) of Taiwan. ICD‐9 Codes 808, 805.4‐805.7, 806.4‐806.7, and 820 (including pelvic, sacrum, lumbar, and femoral neck fracture) were defined as pelvic fracture. Propensity scores for RT, age, and sex were used to perform one‐to‐one matches between the RT and non‐RT group. Risks of pelvic and arm fractures were compared by multivariable Cox regression. Of the 32 689 patients, 7807 (23.9%) received RT, and 1616 suffered from a pelvic fracture (incidence rate: 1.17/100 person‐years). The median time to pelvic fracture was 2.47 years. After matching, 6952 patients each in the RT and non‐RT groups were analyzed. RT was associated with an increased risk of pelvic fractures in the multivariable Cox model (hazard ratio (HR): 1.246, 95% confidence interval (CI): 1.037‐1.495, P = 0.019) but not with arm fractures (HR: 1.013, 95% CI: 0.814‐1.259, P = 0.911). Subgroup analyses revealed that RT was associated with a higher pelvic fracture rate in women (HR: 1.431, 95% CI: 1.117‐1.834) but not in men, and the interaction between sex and RT was significant (P = 0.03). The HR of pelvic fracture increased 2‐4 years after RT (HR: 1.707, 95% CI: 1.150‐2.534, P = 0.008). An increased risk of pelvic fracture is noted in rectal cancer survivors, especially women, who receive RT.
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Affiliation(s)
- Yu-Mei Kang
- Division of Radiation Oncology, Department of Oncology, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Tze-Fan Chao
- Division of Cardiology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Ti-Hao Wang
- Department of Radiation Oncology, China Medical University Hospital, Taipei, Taiwan
| | - Yu-Wen Hu
- Division of Radiation Oncology, Department of Oncology, Taipei Veterans General Hospital, Taipei, Taiwan.,School of Medicine, National Yang-Ming University, Taipei, Taiwan
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20
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Syaifudin M, Defiyandra VP, Nurhayati S, Purnami S, Pudjadi E. Micronucleus Assay-based Evaluation of Radiosensitivity of Lymphocytes among Inhabitants Living in High Background Radiation Area of Mamuju, West Sulawesi, Indonesia. Genome Integr 2019; 9:2. [PMID: 30820313 PMCID: PMC6388569 DOI: 10.4103/genint.genint_2_18] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
Naturally occurring radiation can be found all around us and account for most of the radiation received by human beings each year. Indonesia has a region with high-dose natural radiation located in the suburb of West Sulawesi province with a dose rate up to 2800 nSv/h; however, its impact was not fully understood. The aim of this study was to evaluate the radiosensitivity of 12 peripheral blood lymphocytes of inhabitant from high background radiation area (HBRA) and 10 from normal background radiation area (NBRA) based on cytokinesis-block micronucleus (CBMN) assay after challenged with 1.5 Gy of gamma ray. The analysis of CBMN was done according to standard procedure as per IAEA guidelines, and frequency of binucleate (mitotic) cells with micronuclei (MN) was scored in around 2000 binucleate lymphocytes cells per culture in microscopic analysis. Mean MN frequency for HBRA was lower than that of NBRA (0.121 vs. 0.189) after irradiation, indicating an adaptive response in HBRA group that resulted in less radiosensitivity; however, there was no statistically significant different (P > 0.05) between these two groups. The MN number was higher in women compared to men for both HBRA (0.15 vs. 0.09) and NBRA (0.216 vs. 0.147) groups. Besides, there was no statistically significant difference (P > 0.05) in Nuclear Division Index (NDI), as measured in 500 metaphase cells with published formula, between HBRA and NBRA samples (1.24 vs. 1.21). The lower MN frequency prompts us to conclude that there is an adaptive response in the lymphocytes of inhabitants as an indicator of lower radiosensitivity to the high natural radiation exposure. Further studies using large number of samples are required to obtain more comprehensive conclusion along with the assessment of other types of radiosensitivity-related biomarkers.
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Affiliation(s)
- Mukh Syaifudin
- Nuclear Medicine Technique and Radiation Biology Division, Center for Technology of Radiation Safety and Metrology, National Nuclear Energy Agency (BATAN), Cilandak, Jakarta, Indonesia
| | - Vira Putri Defiyandra
- Department of Biotechnology, Faculty of Sciences, Al-Azhar Indonesia University, Kebayoran Baru, Jakarta, Indonesia
| | - Siti Nurhayati
- Nuclear Medicine Technique and Radiation Biology Division, Center for Technology of Radiation Safety and Metrology, National Nuclear Energy Agency (BATAN), Cilandak, Jakarta, Indonesia
| | - Sofiati Purnami
- Nuclear Medicine Technique and Radiation Biology Division, Center for Technology of Radiation Safety and Metrology, National Nuclear Energy Agency (BATAN), Cilandak, Jakarta, Indonesia
| | - Eko Pudjadi
- Radioecology Division, Center for Technology of Radiation Safety and Metrology (PTKMR), National Nuclear Energy Agency (BATAN), Cilandak, Jakarta, Indonesia
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21
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Hultborn R, Albertsson P, Ottosson S, Warnhammar E, Palm Å, Palm S, Elmroth K. Radiosensitivity: Gender and Order of Administration of G-CSF, An Experimental Study in Mice. Radiat Res 2019; 191:335-341. [PMID: 30730283 DOI: 10.1667/rr15038.1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
To elucidate the potential influence of stimulating bone marrow before cell-cycle-dependent irradiation, we sought to determine overall survival in mice receiving total-body irradiation (TBI) when administered granulocyte stimulating factor (G-CSF) at different time points. Gender differences were also studied. C57/BL/6J mice, aged 9-14 weeks, received 8 Gy TBI in a perspex cage using a linear accelerator. In each of five different experiments, three groups were studied: 1. one control group receiving TBI only; 2. one group treated with filgrastim [500 lg/kg subcutaneously/intraperitoneally (s.c./i.p.)] the day before TBI, followed by daily filgrastim injections postirradiation (1-5 days); and 3. one group treated with daily filgrastim injections only post-TBI (1-5 days). Each experimental group included male and female mice. Survival of the mice was monitored daily, and mice were euthanized when their condition deteriorated. A total of 293 mice were monitored for at least 37 days post-TBI. Control mice that received 8 Gy TBI showed a significant gender difference, with a median survival of 22 days in females and 17 days in males. Addition of G-CSF, irrespective of pre- or postirradiation, significantly improved survival, but in males the improvement was significantly better when G-CSF was not given before TBI. Improved survival in females was independent of the order of administration of GCSF. Multiple filgrastim injections were more effective than a single injection, and s.c. administration was not better than i.p. In conclusion, these findings indicate that male mice are more sensitive to TBI than females. Filgrastim improved survival in both genders irrespective of whether given pre- or postirradiation, but in males the improvement was significantly less if an injection was given before irradiation. These results suggest that, to prevent toxicity most effectively, GCSF should not be given before cytotoxic therapy. While a completely different experimental model was used here, these results may also be extrapolated to indicate that endocrine cell-cycle suppression therapy should not be given before or during cytotoxic therapy of hormone-dependent tumors (e.g., breast and prostate cancer), thus a reduction in the efficacy of cell-cycle-dependent therapy can be prevented.
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Affiliation(s)
- R Hultborn
- a Department of Oncology, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - P Albertsson
- a Department of Oncology, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - S Ottosson
- a Department of Oncology, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - E Warnhammar
- a Department of Oncology, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Å Palm
- b Department of Radiation Physics, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - S Palm
- b Department of Radiation Physics, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - K Elmroth
- a Department of Oncology, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
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22
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Gao Y, Wang P, Wang Z, Han L, Li J, Tian C, Zhao F, Wang J, Zhao F, Zhang Q, Lyu Y. Serum 8-Hydroxy-2'-Deoxyguanosine Level as a Potential Biomarker of Oxidative DNA Damage Induced by Ionizing Radiation in Human Peripheral Blood. Dose Response 2019; 17:1559325818820649. [PMID: 30670937 PMCID: PMC6327346 DOI: 10.1177/1559325818820649] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2018] [Revised: 11/19/2018] [Accepted: 11/20/2018] [Indexed: 12/15/2022] Open
Abstract
In this study, the effect of ionizing radiation on 8-hydroxy-2'-deoxyguanosine (8-OHdG) in human peripheral blood was investigated. Blood samples were collected from 230 radiation workers and 8 patients who underwent radiotherapy for population study. Blood samples from 2 healthy individuals were irradiated with different X-ray doses for in vitro experiment, and levels of 8-OHdG in serum and cell culture supernatants were assessed by enzyme-linked immunosorbent assay. Observations demonstrated the positive relationships between serum 8-OHdG level and radiation dose and working period were observed, and serum 8-OHdG levels were higher among interventional radiation workers than among other hospital radiation workers. In addition, 8-OHdG yields in supernatants increased, peaked at 3 Gy of radiation dose, and then decreased with further increases in radiation; the dose-response curve obtained fitted a polynomial function. By contrast, a similar trend was not found in radiotherapy patients. The present study suggests that 8-OHdG may be a useful biomarker reflecting oxidative damage among workers occupationally exposed to low-dose radiation.
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Affiliation(s)
- Yu Gao
- Department of Toxicology, Henan Institute of Occupational Medicine, Zhengzhou, China
- College of Public Health, Zhengzhou University, Zhengzhou, China
| | - Ping Wang
- Department of Toxicology, Henan Institute of Occupational Medicine, Zhengzhou, China
| | - Zhaonan Wang
- College of Public Health, Zhengzhou University, Zhengzhou, China
| | - Lin Han
- Department of Toxicology, Henan Institute of Occupational Medicine, Zhengzhou, China
| | - Jie Li
- Department of Toxicology, Henan Institute of Occupational Medicine, Zhengzhou, China
| | - Chongbin Tian
- Department of Toxicology, Henan Institute of Occupational Medicine, Zhengzhou, China
| | - Fengling Zhao
- Department of Toxicology, Henan Institute of Occupational Medicine, Zhengzhou, China
| | - Jianpo Wang
- Department of Radiation Oncology, The Fifth Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Fang Zhao
- Department of Radiation Oncology, The Fifth Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Qiao Zhang
- College of Public Health, Zhengzhou University, Zhengzhou, China
| | - Yumin Lyu
- Department of Toxicology, Henan Institute of Occupational Medicine, Zhengzhou, China
- College of Public Health, Zhengzhou University, Zhengzhou, China
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23
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McMahon SJ, Paganetti H, Prise KM. LET-weighted doses effectively reduce biological variability in proton radiotherapy planning. ACTA ACUST UNITED AC 2018; 63:225009. [DOI: 10.1088/1361-6560/aae8a5] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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24
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Ahmad I. Occupational radiation dose limits: Towards breaking the one-size-fits-all paradigm. Phys Med 2018; 55:155-156. [PMID: 30340846 DOI: 10.1016/j.ejmp.2018.10.008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/30/2018] [Revised: 09/24/2018] [Accepted: 10/05/2018] [Indexed: 11/28/2022] Open
Affiliation(s)
- Iftikhar Ahmad
- Institute of Radiotherapy and Nuclear Medicine (IRNUM), Peshawar, Pakistan.
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25
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Gasinska A, Biesaga B, Widla AJ, Darasz Z. Positive effect of single nucleotide RAD51 135G>C polymorphism and low Ku70 protein expression on female rectal cancer patients survival after preoperative radiotherapy. TURKISH JOURNAL OF GASTROENTEROLOGY 2018; 30:3-14. [PMID: 30289394 DOI: 10.5152/tjg.2018.17486] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
BACKGROUND/AIMS This is a retrospective analysis of 103 patients having locally advanced rectal cancer who received short-course radiotherapy (SCRT). The objective of the study was to check whether a polymorphism in the RAD51 gene (135 G>C), Ku70 protein expression, and tumor microenvironment: proliferation rate measured by BrdUrdLI and Ki-67LI, hypoxia (glucose transporter-1 expression), P53 protein expression, and DNA ploidy can influence DNA repair capacity, the factors contributing to patient overall survival (OS) and the incidence of recurrences and metastases. MATERIALS AND METHODS RAD51 (135 G>C) polymorphism was evaluated using restriction fragment length polymorphism polymerase chain reaction, and proteins were identified using immunohistochemistry. RESULTS There were 3 (2.9%) tumors with RAD51 CC, 75 (72.8%) with GG, and 25 (24.3%) with GC genotypes. The median follow-up time was 63.1 months (range 2-120). Patients with CC genotype survived significantly longer than those with GG and GC genotypes and did not develop any recurrences or distant metastases. Female patients with Ku70 expression (<75.1) or RAD51CC genotype (impaired DNA damage repair and radiosensitive) had significantly longer OS (p=0.013) than those with Ku70>75.1 % or RAD51GG,GC (radioresistant phenotype) and male patients in the log-rank test. In multivariate analysis, positive prognostic factors for OS in the male patients were grade=1 and <17 days break in the treatment, whereas in the female subgroup, only radiosensitive phenotype (Ku70 <75.1% or RAD51CC genotype). CONCLUSION To the best of our knowledge, this is the first study to provide evidence for the positive effect of CC genotype of RAD51 or low Ku70 expression on OS in females with rectal cancer after SCRT.
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Affiliation(s)
- Anna Gasinska
- Department of Applied Radiobiology, Maria Sklodowska - Curie Institute, Oncology Center, Cracow Branch, Poland
| | - Beata Biesaga
- Department of Applied Radiobiology, Maria Sklodowska - Curie Institute, Oncology Center, Cracow Branch, Poland
| | - Anna Janecka Widla
- Department of Applied Radiobiology, Maria Sklodowska - Curie Institute, Oncology Center, Cracow Branch, Poland
| | - Zbigniew Darasz
- Department of Surgery, Maria Sklodowska - Curie Institute, Oncology Center, Cracow Branch, Poland
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26
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Zhao Y, Yang L, Wu D, He H, Wang M, Ge T, Liu Y, Tian H, Cui J, Jia L, Wan Z, Han F. Gene-environment interaction for polymorphisms in ataxia telangiectasia-mutated gene and radiation exposure in carcinogenesis: results from two literature-based meta-analyses of 27120 participants. Oncotarget 2018; 7:76867-76881. [PMID: 27764772 PMCID: PMC5363555 DOI: 10.18632/oncotarget.12724] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2016] [Accepted: 10/12/2016] [Indexed: 01/02/2023] Open
Abstract
Purpose We conducted two meta-analyses of ATM genetic polymorphisms and cancer risk in individuals with or without radiation exposure to determine whether there was a joint effect between the ATM gene and radiation exposure in carcinogenesis. Results rs1801516, which was the only ATM polymorphism investigated by more than 3 studies of radiation exposure, was eligible for the present study. The meta-analysis of 23333 individuals without radiation exposure from 24 studies showed no association between the rs1801516 polymorphism and cancer risk, without heterogeneity across studies. The meta-analysis of 3787 individuals with radiation exposure from 6 studies showed a significant association between the rs1801516 polymorphism and a decreased cancer risk, with heterogeneity across studies. There was a borderline-significant difference between the ORs of the two meta-analyses (P = 0.066), and the difference was significant when only Caucasians were included (P = 0.011). Materials and methods Publications were identified by searching PubMed, EMBASE, Web of Science, and CNKI databases. Odds ratios (ORs) were calculated to estimate the association between ATM genetic polymorphisms and cancer risk. Tests of interaction were used to compare differences between the ORs of the two meta-analyses. Conclusions Our meta-analyses confirmed the presence of a gene-environment interaction between the rs1801516 polymorphism and radiation exposure in carcinogenesis, whereas no association was found between the rs1801516 polymorphism and cancer risk for individuals without radiation exposure. The heterogeneity observed in the meta-analysis of individuals with radiation exposure might be due to gene-ethnicity or gene-gene interactions. Further studies are needed to elucidate sources of the heterogeneity.
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Affiliation(s)
- Yuguang Zhao
- Cancer Center, The First Hospital of Jilin University, Changchun, China
| | - Lei Yang
- Cancer Center, The First Hospital of Jilin University, Changchun, China
| | - Di Wu
- Cancer Center, The First Hospital of Jilin University, Changchun, China
| | - Hua He
- Cancer Center, The First Hospital of Jilin University, Changchun, China
| | - Mengmeng Wang
- Cancer Center, The First Hospital of Jilin University, Changchun, China
| | - Tingwen Ge
- Cancer Center, The First Hospital of Jilin University, Changchun, China
| | - Yudi Liu
- Cancer Center, The First Hospital of Jilin University, Changchun, China
| | - Huimin Tian
- Cancer Center, The First Hospital of Jilin University, Changchun, China
| | - Jiuwei Cui
- Cancer Center, The First Hospital of Jilin University, Changchun, China
| | - Lin Jia
- Cancer Center, The First Hospital of Jilin University, Changchun, China
| | - Ziqiang Wan
- Cancer Center, The First Hospital of Jilin University, Changchun, China
| | - Fujun Han
- Cancer Center, The First Hospital of Jilin University, Changchun, China
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Gender-related prognostic significance of clinical and biological tumor features in rectal cancer patients receiving short-course preoperative radiotherapy. Rep Pract Oncol Radiother 2017; 22:368-377. [PMID: 28794690 DOI: 10.1016/j.rpor.2017.07.002] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2016] [Revised: 05/15/2017] [Accepted: 07/11/2017] [Indexed: 12/24/2022] Open
Abstract
AIM To study the prognostic value of clinical and biological features of rectal cancer and potential gender differences in patients' overall survival (OS), local recurrence-free survival (RFS) and metastasis-free survival (MFS) after short-course preoperative radiotherapy (SCRT) with short or long interval between RT and surgery (break). BACKGROUND The length of the interval between RT and surgery in SCRT is debatable and gender-related differences in patients survival are not established yet. MATERIALS AND METHODS 126 patients received SCRT with 5 Gy dose per fraction during 5 days, followed by radical surgery after short break ≤17 days, and a long break >17 days. Pretreatment tumor proliferation (bromodeoxyuridine labeling index, BrdUrdLI and S-phase fraction) was evaluated by flow cytometry and proteins: CD34, Ki-67, GLUT-1, Ku70, BCL-2, P53 expression was studied immunohistochemically. RESULTS The studied group included 84 men and 42 women. There were 33, 76, and 17 cTNM (AJCC) tumor stages I, II, III, respectively. The median follow-up time was 53.3 months (range 2-142 months). For the whole group Cox multivariate analysis revealed that tumor grade (G > 1), interval between RT and surgery >17 days, pTNM stage >1 and P53 positivity + BrdUrdLI > 7.9% were negative prognostic factors for OS. Tumor aneuploidy and MVD > 140.8 vessels/mm2 were important for RFS. pTNM stage > 1 and P53 positivity combined with BrdUrdLI > 7.9% were risk predictors for MFS. Based on tumor biological features, gender-related difference in OS, RFS, and MFS were observed. In multivariate analysis, male patients age > 62 years and break >17 days only appeared to be significant for OS. CONCLUSIONS In male rectal patients treated with SCRT, breaks between RT and surgery >17 days should be avoided because they negatively influence patients' survival.
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28
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Chinn IK, Sanders RP, Stray-Pedersen A, Coban-Akdemir ZH, Kim VHD, Dadi H, Roifman CM, Quigg T, Lupski JR, Orange JS, Hanson IC. Novel Combined Immune Deficiency and Radiation Sensitivity Blended Phenotype in an Adult with Biallelic Variations in ZAP70 and RNF168. Front Immunol 2017; 8:576. [PMID: 28603521 PMCID: PMC5445153 DOI: 10.3389/fimmu.2017.00576] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2017] [Accepted: 05/01/2017] [Indexed: 12/11/2022] Open
Abstract
With the advent of high-throughput genomic sequencing techniques, novel genetic etiologies are being uncovered for previously unexplained Mendelian phenotypes, and the underlying genetic architecture of disease is being unraveled. Although most of these “mendelizing” disease traits represent phenotypes caused by single-gene defects, a percentage of patients have blended phenotypes caused by pathogenic variants in multiple genes. We describe an adult patient with susceptibility to bacterial, herpesviral, and fungal infections. Immunologic defects included CD8+ T cell lymphopenia, decreased T cell proliferative responses to mitogens, hypogammaglobulinemia, and radiation sensitivity. Whole-exome sequencing revealed compound heterozygous variants in ZAP70. Biallelic mutations in ZAP70 are known to produce a spectrum of immune deficiency that includes the T cell abnormalities observed in this patient. Analyses for variants in genes associated with radiation sensitivity identified the presence of a homozygous RNF168 variant of unknown significance. RNF168 deficiency causes radiosensitivity, immunodeficiency, dysmorphic features, and learning difficulties syndrome and may account for the radiation sensitivity. Thus, the patient was found to have a novel blended phenotype associated with multilocus genomic variation: i.e., separate and distinct genetic defects. These findings further illustrate the clinical utility of applying genomic testing in patients with primary immunodeficiency diseases.
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Affiliation(s)
- Ivan K Chinn
- Department of Pediatrics, Baylor College of Medicine, Houston, TX, USA.,Section of Immunology, Allergy, and Rheumatology, Texas Children's Hospital, Houston, TX, USA.,Center for Human Immunobiology, Texas Children's Hospital, Houston, TX, USA
| | - Robert P Sanders
- Texas Transplant Institute, Methodist Hospital, San Antonio, TX, USA
| | - Asbjørg Stray-Pedersen
- Norwegian National Unit for Newborn Screening, Department of Pediatric and Adolescent Medicine, Oslo University Hospital, Oslo, Norway.,Institute of Clinical Medicine, University of Oslo, Oslo, Norway.,Baylor-Hopkins Center for Mendelian Genomics, Baylor College of Medicine, Houston, TX, USA
| | - Zeynep H Coban-Akdemir
- Baylor-Hopkins Center for Mendelian Genomics, Baylor College of Medicine, Houston, TX, USA.,Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX, USA
| | - Vy Hong-Diep Kim
- Division of Immunology and Allergy, Department of Pediatrics, The Hospital for Sick Children, University of Toronto, Toronto, ON, Canada
| | - Harjit Dadi
- Division of Immunology and Allergy, Department of Pediatrics, The Hospital for Sick Children, University of Toronto, Toronto, ON, Canada.,Canadian Centre for Primary Immunodeficiency, The Jeffrey Model Research Laboratory for the Diagnosis of Primary Immunodeficiency, The Hospital for Sick Children, University of Toronto, Toronto, ON, Canada
| | - Chaim M Roifman
- Division of Immunology and Allergy, Department of Pediatrics, The Hospital for Sick Children, University of Toronto, Toronto, ON, Canada.,Canadian Centre for Primary Immunodeficiency, The Jeffrey Model Research Laboratory for the Diagnosis of Primary Immunodeficiency, The Hospital for Sick Children, University of Toronto, Toronto, ON, Canada
| | - Troy Quigg
- Texas Transplant Institute, Methodist Hospital, San Antonio, TX, USA
| | - James R Lupski
- Department of Pediatrics, Baylor College of Medicine, Houston, TX, USA.,Baylor-Hopkins Center for Mendelian Genomics, Baylor College of Medicine, Houston, TX, USA.,Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX, USA.,Human Genome Sequencing Center, Baylor College of Medicine, Houston, TX, USA
| | - Jordan S Orange
- Department of Pediatrics, Baylor College of Medicine, Houston, TX, USA.,Section of Immunology, Allergy, and Rheumatology, Texas Children's Hospital, Houston, TX, USA.,Center for Human Immunobiology, Texas Children's Hospital, Houston, TX, USA
| | - I Celine Hanson
- Department of Pediatrics, Baylor College of Medicine, Houston, TX, USA.,Section of Immunology, Allergy, and Rheumatology, Texas Children's Hospital, Houston, TX, USA
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