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Guo X, Osouli S, Shahripour RB. Review of Cerebral Radiotherapy-Induced Vasculopathy in Pediatric and Adult Patients. Adv Biol (Weinh) 2023; 7:e2300179. [PMID: 37401794 DOI: 10.1002/adbi.202300179] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2023] [Revised: 06/04/2023] [Indexed: 07/05/2023]
Abstract
Radiation therapy (RT) causes radiation-induced vasculopathy, which requires clinicians to identify and manage this side effect in pediatric and adult patients. This article reviews previous findings about the pathophysiology of RT-induced vascular injury, including endothelial cell injury, oxidative stress, inflammatory cytokines, angiogenic pathways, and remodeling. The vasculopathy is categorized into ischemic vasculopathy, hemorrhagic vasculopathy, carotid artery injury, and other malformations (cavernous malformations and aneurysms) in populations of pediatric and adult patients separately. The prevention and management of this RT-induced side effect are also discussed. The article summarizes the distribution and risk factors of different types of RT-induced vasculopathy. This will help clinicians identify high-risk patients with corresponding vasculopathy subtypes to deduce prevention and treatment strategies accordingly.
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Affiliation(s)
- Xiaofan Guo
- Department of Neurology, Loma Linda University, Loma Linda, CA, 92354, USA
| | - Sima Osouli
- Department of Neurology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, 1516745811, Iran
| | - Reza Bavarsad Shahripour
- Department of Neurology, Loma Linda University, Loma Linda, CA, 92354, USA
- Comprehensive Stroke Center, Department of Neurology, University of California San Diego, San Diego, CA, 92103, USA
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2
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Dreyfuss AD, Velalopoulou A, Avgousti H, Bell BI, Verginadis II. Preclinical models of radiation-induced cardiac toxicity: Potential mechanisms and biomarkers. Front Oncol 2022; 12:920867. [PMID: 36313656 PMCID: PMC9596809 DOI: 10.3389/fonc.2022.920867] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2022] [Accepted: 09/12/2022] [Indexed: 12/24/2022] Open
Abstract
Radiation therapy (RT) is an important modality in cancer treatment with >50% of cancer patients undergoing RT for curative or palliative intent. In patients with breast, lung, and esophageal cancer, as well as mediastinal malignancies, incidental RT dose to heart or vascular structures has been linked to the development of Radiation-Induced Heart Disease (RIHD) which manifests as ischemic heart disease, cardiomyopathy, cardiac dysfunction, and heart failure. Despite the remarkable progress in the delivery of radiotherapy treatment, off-target cardiac toxicities are unavoidable. One of the best-studied pathological consequences of incidental exposure of the heart to RT is collagen deposition and fibrosis, leading to the development of radiation-induced myocardial fibrosis (RIMF). However, the pathogenesis of RIMF is still largely unknown. Moreover, there are no available clinical approaches to reverse RIMF once it occurs and it continues to impair the quality of life of long-term cancer survivors. Hence, there is an increasing need for more clinically relevant preclinical models to elucidate the molecular and cellular mechanisms involved in the development of RIMF. This review offers an insight into the existing preclinical models to study RIHD and the suggested mechanisms of RIMF, as well as available multi-modality treatments and outcomes. Moreover, we summarize the valuable detection methods of RIHD/RIMF, and the clinical use of sensitive radiographic and circulating biomarkers.
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3
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Walls GM, O'Kane R, Ghita M, Kuburas R, McGarry CK, Cole AJ, Jain S, Butterworth KT. Murine models of radiation cardiotoxicity: A systematic review and recommendations for future studies. Radiother Oncol 2022; 173:19-31. [PMID: 35533784 DOI: 10.1016/j.radonc.2022.04.030] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Revised: 04/13/2022] [Accepted: 04/29/2022] [Indexed: 12/11/2022]
Abstract
BACKGROUND AND PURPOSE The effects of radiation on the heart are dependent on dose, fractionation, overall treatment time, and pre-existing cardiovascular pathology. Murine models have played a central role in improving our understanding of the radiation response of the heart yet a wide range of exposure parameters have been used. We evaluated the study design of published murine cardiac irradiation experiments to assess gaps in the literature and to suggest guidance for the harmonisation of future study reporting. METHODS AND MATERIALS A systematic review of mouse/rat studies published 1981-2021 that examined the effect of radiation on the heart was performed. The protocol was published on PROSPERO (CRD42021238921) and the findings were reported in accordance with the PRISMA guidance. Risk of bias was assessed using the SYRCLE checklist. RESULTS 159 relevant full-text original articles were reviewed. The heart only was the target volume in 67% of the studies and simulation details were unavailable for 44% studies. Dosimetry methods were reported in 31% studies. The pulmonary effects of whole and partial heart irradiation were reported in 13% studies. Seventy-eight unique dose-fractionation schedules were evaluated. Large heterogeneity was observed in the endpoints measured, and the reporting standards were highly variable. CONCLUSIONS Current murine models of radiation cardiotoxicity cover a wide range of irradiation configurations and latency periods. There is a lack of evidence describing clinically relevant dose-fractionations, circulating biomarkers and radioprotectants. Recommendations for the consistent reporting of methods and results of in vivo cardiac irradiation studies are made to increase their suitability for informing the design of clinical studies.
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Affiliation(s)
- Gerard M Walls
- Patrick G Johnston Centre for Cancer Research, Queen's University Belfast, Lisburn Road, Belfast, Northern Ireland; Cancer Centre Belfast City Hospital, Belfast Health & Social Care Trust, Lisburn Road, Belfast, Northern Ireland.
| | - Reagan O'Kane
- Patrick G Johnston Centre for Cancer Research, Queen's University Belfast, Lisburn Road, Belfast, Northern Ireland
| | - Mihaela Ghita
- Patrick G Johnston Centre for Cancer Research, Queen's University Belfast, Lisburn Road, Belfast, Northern Ireland
| | - Refik Kuburas
- Patrick G Johnston Centre for Cancer Research, Queen's University Belfast, Lisburn Road, Belfast, Northern Ireland
| | - Conor K McGarry
- Patrick G Johnston Centre for Cancer Research, Queen's University Belfast, Lisburn Road, Belfast, Northern Ireland; Cancer Centre Belfast City Hospital, Belfast Health & Social Care Trust, Lisburn Road, Belfast, Northern Ireland
| | - Aidan J Cole
- Patrick G Johnston Centre for Cancer Research, Queen's University Belfast, Lisburn Road, Belfast, Northern Ireland; Cancer Centre Belfast City Hospital, Belfast Health & Social Care Trust, Lisburn Road, Belfast, Northern Ireland
| | - Suneil Jain
- Patrick G Johnston Centre for Cancer Research, Queen's University Belfast, Lisburn Road, Belfast, Northern Ireland; Cancer Centre Belfast City Hospital, Belfast Health & Social Care Trust, Lisburn Road, Belfast, Northern Ireland
| | - Karl T Butterworth
- Patrick G Johnston Centre for Cancer Research, Queen's University Belfast, Lisburn Road, Belfast, Northern Ireland
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Glasow A, Patties I, Priest ND, Mitchel REJ, Hildebrandt G, Manda K. Dose and Dose Rate-Dependent Effects of Low-Dose Irradiation on Inflammatory Parameters in ApoE-Deficient and Wild Type Mice. Cells 2021; 10:3251. [PMID: 34831473 PMCID: PMC8625495 DOI: 10.3390/cells10113251] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2021] [Revised: 11/12/2021] [Accepted: 11/18/2021] [Indexed: 12/14/2022] Open
Abstract
Anti-inflammatory low-dose therapy is well established, whereas the immunomodulatory impact of doses below 0.1 Gy is much less clear. In this study, we investigated dose, dose rate and time-dependent effects in a dose range of 0.005 to 2 Gy on immune parameters after whole body irradiation (IR) using a pro-inflammatory (ApoE-/-) and a wild type mouse model. Long-term effects on spleen function (proliferation, monocyte expression) were analyzed 3 months, and short-term effects on immune plasma parameters (IL6, IL10, IL12p70, KC, MCP1, INFγ, TGFβ, fibrinogen, sICAM, sVCAM, sE-selectin/CD62) were analyzed 1, 7 and 28 days after Co60 γ-irradiation (IR) at low dose rate (LDR, 0.001 Gy/day) and at high dose rate (HDR). In vitro measurements of murine monocyte (WEHI-274.1) adhesion and cytokine release (KC, MCP1, IL6, TGFβ) after low-dose IR (150 kV X-ray unit) of murine endothelial cell (EC) lines (H5V, mlEND1, bEND3) supplement the data. RT-PCR revealed significant reduction of Ki67 and CD68 expression in the spleen of ApoE-/- mice after 0.025 to 2 Gy exposure at HDR, but only after 2 Gy at LDR. Plasma levels in wild type mice, showed non-linear time-dependent induction of proinflammatory cytokines and reduction of TGFβ at doses as low as 0.005 Gy at both dose rates, whereas sICAM and fibrinogen levels changed in a dose rate-specific manner. In ApoE-/- mice, levels of sICAM increased and fibrinogen decreased at both dose rates, whereas TGFβ increased mainly at HDR. Non-irradiated plasma samples revealed significant age-related enhancement of cytokines and adhesion molecules except for sICAM. In vitro data indicate that endothelial cells may contribute to systemic IR effects and confirm changes of adhesion properties suggested by altered sICAM plasma levels. The differential immunomodulatory effects shown here provide insights in inflammatory changes occurring at doses far below standard anti-inflammatory therapy and are of particular importance after diagnostic and chronic environmental exposures.
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Affiliation(s)
- Annegret Glasow
- Department of Radiation Oncology, University of Leipzig, 04103 Leipzig, Germany;
| | - Ina Patties
- Department of Radiation Oncology, University of Leipzig, 04103 Leipzig, Germany;
| | - Nicholas D. Priest
- Département de Chimie, Université Laval, Québec, QC G1V 0A6, Canada;
- Radiological Protection Research and Instrumentation Branch, Canadian Nuclear Laboratories (Retired), Chalk River, ON K0J 1J0, Canada;
| | - Ronald E. J. Mitchel
- Radiological Protection Research and Instrumentation Branch, Canadian Nuclear Laboratories (Retired), Chalk River, ON K0J 1J0, Canada;
| | - Guido Hildebrandt
- Department of Radiation Oncology, University of Rostock, 18059 Rostock, Germany; (G.H.); (K.M.)
| | - Katrin Manda
- Department of Radiation Oncology, University of Rostock, 18059 Rostock, Germany; (G.H.); (K.M.)
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Nemec-Bakk AS, Sridharan V, Landes RD, Singh P, Cao M, Seawright JW, Liu X, Zheng G, Dominic P, Pathak R, Boerma M. Mitigation of late cardiovascular effects of oxygen ion radiation by γ-tocotrienol in a mouse model. LIFE SCIENCES IN SPACE RESEARCH 2021; 31:43-50. [PMID: 34689949 PMCID: PMC8548672 DOI: 10.1016/j.lssr.2021.07.006] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/13/2021] [Revised: 07/02/2021] [Accepted: 07/29/2021] [Indexed: 05/14/2023]
Abstract
PURPOSE While there is concern about degenerative tissue effects of exposure to space radiation during deep-space missions, there are no pharmacological countermeasures against these adverse effects. γ-Tocotrienol (GT3) is a natural form of vitamin E that has anti-oxidant properties, modifies cholesterol metabolism, and has anti-inflammatory and endothelial cell protective properties. The purpose of this study was to test whether GT3 could mitigate cardiovascular effects of oxygen ion (16O) irradiation in a mouse model. MATERIALS AND METHODS Male C57BL/6 J mice were exposed to whole-body 16O (600 MeV/n) irradiation (0.26-0.33 Gy/min) at doses of 0 or 0.25 Gy at 6 months of age and were followed up to 9 months after irradiation. Animals were administered GT3 (50 mg/kg/day s.c.) or vehicle, on Monday - Friday starting on day 3 after irradiation for a total of 16 administrations. Ultrasonography was used to measure in vivo cardiac function and blood flow parameters. Cardiac tissue remodeling and inflammatory infiltration were assessed with histology and immunoblot analysis at 2 weeks, 3 and 9 months after radiation. RESULTS GT3 mitigated the effects of 16O radiation on cardiac function, the expression of a collagen type III peptide, and markers of mast cells, T-cells and monocytes/macrophages in the left ventricle. CONCLUSIONS GT3 may be a potential countermeasure against late degenerative tissue effects of high-linear energy transfer radiation in the heart.
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Affiliation(s)
- Ashley S Nemec-Bakk
- Division of Radiation Health, Department of Pharmaceutical Sciences, University of Arkansas for Medical Sciences, Little Rock, AR, USA.
| | - Vijayalakshmi Sridharan
- Division of Radiation Health, Department of Pharmaceutical Sciences, University of Arkansas for Medical Sciences, Little Rock, AR, USA
| | - Reid D Landes
- Department of Biostatistics, University of Arkansas for Medical Sciences, Little Rock, AR, USA
| | - Preeti Singh
- Division of Radiation Health, Department of Pharmaceutical Sciences, University of Arkansas for Medical Sciences, Little Rock, AR, USA
| | - Maohua Cao
- College of Dentistry, Texas A&M University, Dallas TX, USA
| | | | - Xingui Liu
- Department of Pharmacodynamics, University of Florida, Gainesville, FL, USA
| | - Guangrong Zheng
- Department of Medicinal Chemistry, University of Florida, Gainesville, FL, USA
| | - Paari Dominic
- Department of Medicine and Center of Excellence for Cardiovascular Diseases & Sciences, Louisiana State University Health Sciences Center, Shreveport, LA, USA
| | - Rupak Pathak
- Division of Radiation Health, Department of Pharmaceutical Sciences, University of Arkansas for Medical Sciences, Little Rock, AR, USA
| | - Marjan Boerma
- Division of Radiation Health, Department of Pharmaceutical Sciences, University of Arkansas for Medical Sciences, Little Rock, AR, USA
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6
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Aryafar T, Amini P, Rezapoor S, Shabeeb D, Eleojo Musa A, Najafi M, Shirazi A. Modulation of Radiation-Induced NADPH Oxidases in Rat's Heart Tissues by Melatonin. J Biomed Phys Eng 2021; 11:465-472. [PMID: 34458194 PMCID: PMC8385219 DOI: 10.31661/jbpe.v0i0.1094] [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: 12/29/2018] [Accepted: 02/18/2019] [Indexed: 12/13/2022]
Abstract
Background Experimental studies have shown that infiltration of inflammatory cells as well as upregulation of some cytokines play a central role in the development of late effects of ionizing radiation in heart tissues. Evidences have shown that an increased level of TGF-β has a direct correlation with late effects of exposure to ionizing radiation such as chronic oxidative stress and fibrosis. Recent studies have shown that TGF-β, through upregulation of pro-oxidant enzymes such as NOX2 and NOX4, promotes continuous ROS production and accumulation of fibrosis. Objective In present study, we aimed to evaluate the expression of NOX2 and NOX4 signaling pathways as well as possible modulatory effects of melatonin on the expression of these genes. Material and Methods In this experimental study, four groups of 20 rats (5 in each) were used as follows; G1: control; G2: melatonin; G3: radiation; G4: radiation + melatonin. 100 mg/kg of melatonin was administrated before irradiation of heart tissues with 15 Gy gamma rays. 10 weeks after irradiation, heart tissues were collected for real-time Polymerase chain reaction (PCR). Results Results showed a significant increase in the expression of TGF-β, Smad2, NF-kB, NOX2 and NOX4. The upregulation of NOX2 was more obvious by 20-fold compared to other genes. Except for TGF-β, melatonin could attenuate the expression of other genes. Conclusion This study indicated that exposure of rat's heart tissues to radiation leads to upregulation of TGF-β-NOX4 and TGF-β-NOX2 pathways. Melatonin, through modulation of these genes, may be able to alleviate radiation-induced chronic oxidative stress and subsequent consequences.
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Affiliation(s)
- Tayebeh Aryafar
- PhD, Department of Medical Physics and Biomedical Engineering, Faculty of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Peyman Amini
- MSc, Department of Radiology, Faculty of Paramedical, Tehran University of Medical Sciences, Tehran, Iran
| | - Saeed Rezapoor
- MSc, Department of Radiology, Faculty of Paramedical, Tehran University of Medical Sciences, Tehran, Iran
| | - Dheyauldeen Shabeeb
- PhD, Department of Physiology, College of Medicine, University of Misan, Misan, Iraq
| | - Ahmed Eleojo Musa
- PhD, Research Center of Molecular and Cellular Imaging, Tehran University of Medical Sciences (International Campus), Tehran, Iran
| | - Masoud Najafi
- PhD, Radiology and Nuclear Medicine Department, School of Paramedical Sciences, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Alireza Shirazi
- PhD, Department of Medical Physics and Biomedical Engineering, Faculty of Medicine, Tehran University of Medical Sciences, Tehran, Iran
- PhD, Cancer Research Centre, Cancer Institute, Tehran University of Medical Sciences, Tehran, Iran
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7
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Azimzadeh O, von Toerne C, Subramanian V, Sievert W, Multhoff G, Atkinson MJ, Tapio S. Data-Independent Acquisition Proteomics Reveals Long-Term Biomarkers in the Serum of C57BL/6J Mice Following Local High-Dose Heart Irradiation. Front Public Health 2021; 9:678856. [PMID: 34277544 PMCID: PMC8283568 DOI: 10.3389/fpubh.2021.678856] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2021] [Accepted: 05/18/2021] [Indexed: 12/23/2022] Open
Abstract
Background and Purpose: Cardiotoxicity is a well-known adverse effect of radiation therapy. Measurable abnormalities in the heart function indicate advanced and often irreversible heart damage. Therefore, early detection of cardiac toxicity is necessary to delay and alleviate the development of the disease. The present study investigated long-term serum proteome alterations following local heart irradiation using a mouse model with the aim to detect biomarkers of radiation-induced cardiac toxicity. Materials and Methods: Serum samples from C57BL/6J mice were collected 20 weeks after local heart irradiation with 8 or 16 Gy X-ray; the controls were sham-irradiated. The samples were analyzed by quantitative proteomics based on data-independent acquisition mass spectrometry. The proteomics data were further investigated using bioinformatics and ELISA. Results: The analysis showed radiation-induced changes in the level of several serum proteins involved in the acute phase response, inflammation, and cholesterol metabolism. We found significantly enhanced expression of proinflammatory cytokines (TNF-α, TGF-β, IL-1, and IL-6) in the serum of the irradiated mice. The level of free fatty acids, total cholesterol, low-density lipoprotein (LDL), and oxidized LDL was increased, whereas that of high-density lipoprotein was decreased by irradiation. Conclusions: This study provides information on systemic effects of heart irradiation. It elucidates a radiation fingerprint in the serum that may be used to elucidate adverse cardiac effects after radiation therapy.
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Affiliation(s)
- Omid Azimzadeh
- Institute of Radiation Biology, Helmholtz Zentrum München - German Research Center for Environmental Health, Neuherberg, Germany.,Section Radiation Biology, Federal Office for Radiation Protection, Oberschleissheim, Germany
| | - Christine von Toerne
- Research Unit Protein Science, Helmholtz Zentrum München - German Research Center for Environmental Health, Munich, Germany
| | - Vikram Subramanian
- Institute of Radiation Biology, Helmholtz Zentrum München - German Research Center for Environmental Health, Neuherberg, Germany
| | - Wolfgang Sievert
- Department of Radiation Oncology, Center for Translational Cancer Research (TranslaTUM), Campus Klinikum rechts der Isar, Technical University of Munich, Munich, Germany
| | - Gabriele Multhoff
- Department of Radiation Oncology, Center for Translational Cancer Research (TranslaTUM), Campus Klinikum rechts der Isar, Technical University of Munich, Munich, Germany
| | - Michael J Atkinson
- Institute of Radiation Biology, Helmholtz Zentrum München - German Research Center for Environmental Health, Neuherberg, Germany.,Radiation Biology, Technical University of Munich, Munich, Germany
| | - Soile Tapio
- Institute of Radiation Biology, Helmholtz Zentrum München - German Research Center for Environmental Health, Neuherberg, Germany.,Institute for Biological and Medical Imaging, Helmholtz Zentrum München - German Research Center for Environmental Health, Neuherberg, Germany
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8
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Schlaak RA, SenthilKumar G, Boerma M, Bergom C. Advances in Preclinical Research Models of Radiation-Induced Cardiac Toxicity. Cancers (Basel) 2020; 12:E415. [PMID: 32053873 PMCID: PMC7072196 DOI: 10.3390/cancers12020415] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2020] [Revised: 02/08/2020] [Accepted: 02/08/2020] [Indexed: 12/12/2022] Open
Abstract
Radiation therapy (RT) is an important component of cancer therapy, with >50% of cancer patients receiving RT. As the number of cancer survivors increases, the short- and long-term side effects of cancer therapy are of growing concern. Side effects of RT for thoracic tumors, notably cardiac and pulmonary toxicities, can cause morbidity and mortality in long-term cancer survivors. An understanding of the biological pathways and mechanisms involved in normal tissue toxicity from RT will improve future cancer treatments by reducing the risk of long-term side effects. Many of these mechanistic studies are performed in animal models of radiation exposure. In this area of research, the use of small animal image-guided RT with treatment planning systems that allow more accurate dose determination has the potential to revolutionize knowledge of clinically relevant tumor and normal tissue radiobiology. However, there are still a number of challenges to overcome to optimize such radiation delivery, including dose verification and calibration, determination of doses received by adjacent normal tissues that can affect outcomes, and motion management and identifying variation in doses due to animal heterogeneity. In addition, recent studies have begun to determine how animal strain and sex affect normal tissue radiation injuries. This review article discusses the known and potential benefits and caveats of newer technologies and methods used for small animal radiation delivery, as well as how the choice of animal models, including variables such as species, strain, and age, can alter the severity of cardiac radiation toxicities and impact their clinical relevance.
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Affiliation(s)
- Rachel A. Schlaak
- Department of Pharmacology & Toxicology, Medical College of Wisconsin, Milwaukee, WI 53226, USA;
| | - Gopika SenthilKumar
- Medical Scientist Training Program, Medical College of Wisconsin; Milwaukee, WI 53226, USA;
- Department of Medicine, Medical College of Wisconsin, Milwaukee, WI 53226, USA
| | - Marjan Boerma
- Division of Radiation Health, Department of Pharmaceutical Sciences, The University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA;
| | - Carmen Bergom
- Department of Pharmacology & Toxicology, Medical College of Wisconsin, Milwaukee, WI 53226, USA;
- Department of Radiation Oncology, Medical College of Wisconsin, Milwaukee, WI 53226, USA
- Cardiovascular Center, Medical College of Wisconsin, Milwaukee, WI 53226, USA
- Cancer Center, Medical College of Wisconsin, Milwaukee, WI 53226, USA
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9
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Zou B, Schuster JP, Niu K, Huang Q, Rühle A, Huber PE. Radiotherapy-induced heart disease: a review of the literature. PRECISION CLINICAL MEDICINE 2019; 2:270-282. [PMID: 35693876 PMCID: PMC8985808 DOI: 10.1093/pcmedi/pbz025] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2019] [Revised: 11/25/2019] [Accepted: 11/25/2019] [Indexed: 11/20/2022] Open
Abstract
Radiotherapy as one of the four pillars of cancer therapy plays a critical role in the multimodal treatment of thoracic cancers. Due to significant improvements in overall cancer survival, radiotherapy-induced heart disease (RIHD) has become an increasingly recognized adverse reaction which contributes to major radiation-associated toxicities including non-malignant death. This is especially relevant for patients suffering from diseases with excellent prognosis such as breast cancer or Hodgkin’s lymphoma, since RIHD may occur decades after radiotherapy. Preclinical studies have enriched our knowledge of many potential mechanisms by which thoracic radiotherapy induces heart injury. Epidemiological findings in humans reveal that irradiation might increase the risk of cardiac disease at even lower doses than previously assumed. Recent preclinical studies have identified non-invasive methods for evaluation of RIHD. Furthermore, potential options preventing or at least attenuating RIHD have been developed. Ongoing research may enrich our limited knowledge about biological mechanisms of RIHD, identify non-invasive early detection biomarkers and investigate potential treatment options that might attenuate or prevent these unwanted side effects. Here, we present a comprehensive review about the published literature regarding clinical manifestation and pathological alterations in RIHD. Biological mechanisms and treatment options are outlined, and challenges in RIHD treatment are summarized.
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Affiliation(s)
- Bingwen Zou
- Department of Radiation Oncology, Heidelberg University Hospital, Im Neuenheimer Feld 400, Heidelberg 69120, Germany
- Department of Molecular Radiation Oncology, German Cancer Research Center, Im Neuenheimer Feld 280, Heidelberg 69120, Germany
| | - Julius Philipp Schuster
- Department of Radiation Oncology, Heidelberg University Hospital, Im Neuenheimer Feld 400, Heidelberg 69120, Germany
- Department of Molecular Radiation Oncology, German Cancer Research Center, Im Neuenheimer Feld 280, Heidelberg 69120, Germany
| | - Kerun Niu
- Department of Molecular Radiation Oncology, German Cancer Research Center, Im Neuenheimer Feld 280, Heidelberg 69120, Germany
| | - Qianyi Huang
- Department of Molecular Radiation Oncology, German Cancer Research Center, Im Neuenheimer Feld 280, Heidelberg 69120, Germany
| | - Alexander Rühle
- Department of Radiation Oncology, Heidelberg University Hospital, Im Neuenheimer Feld 400, Heidelberg 69120, Germany
- Department of Molecular Radiation Oncology, German Cancer Research Center, Im Neuenheimer Feld 280, Heidelberg 69120, Germany
- Heidelberg Institute for Radiation Oncology (HIRO) and National Center for Radiation Oncology (NCRO), Im Neuenheimer Feld 280, Heidelberg 69120, Germany
| | - Peter Ernst Huber
- Department of Radiation Oncology, Heidelberg University Hospital, Im Neuenheimer Feld 400, Heidelberg 69120, Germany
- Department of Molecular Radiation Oncology, German Cancer Research Center, Im Neuenheimer Feld 280, Heidelberg 69120, Germany
- Heidelberg Institute for Radiation Oncology (HIRO) and National Center for Radiation Oncology (NCRO), Im Neuenheimer Feld 280, Heidelberg 69120, Germany
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10
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Meyers TA, Heitzman JA, Krebsbach AM, Aufdembrink LM, Hughes R, Bartolomucci A, Townsend D. Acute AT 1R blockade prevents isoproterenol-induced injury in mdx hearts. J Mol Cell Cardiol 2019; 128:51-61. [PMID: 30664850 DOI: 10.1016/j.yjmcc.2019.01.013] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/05/2018] [Revised: 12/31/2018] [Accepted: 01/15/2019] [Indexed: 12/12/2022]
Abstract
BACKGROUND Duchenne muscular dystrophy (DMD) is an X-linked disease characterized by skeletal muscle degeneration and a significant cardiomyopathy secondary to cardiomyocyte damage and myocardial loss. The molecular basis of DMD lies in the absence of the protein dystrophin, which plays critical roles in mechanical membrane integrity and protein localization at the sarcolemma. A popular mouse model of DMD is the mdx mouse, which lacks dystrophin and displays mild cardiac and skeletal pathology that can be exacerbated to advance the disease state. In clinical and pre-clinical studies of DMD, angiotensin signaling pathways have emerged as therapeutic targets due to their adverse influence on muscle remodeling and oxidative stress. Here we aim to establish a physiologically relevant cardiac injury model in the mdx mouse, and determine whether acute blockade of the angiotensin II type 1 receptor (AT1R) may be utilized for prevention of dystrophic injury. METHODS AND RESULTS A single IP injection of isoproterenol (Iso, 10 mg/kg) was used to induce cardiac stress and injury in mdx and wild type (C57Bl/10) mice. Mice were euthanized 8 h, 30 h, 1 week, or 1 month following the injection, and hearts were harvested for injury evaluation. At 8 and 30 h post-injury, mdx hearts showed 2.2-fold greater serum cTnI content and 3-fold more extensive injury than wild type hearts. Analysis of hearts 1 week and 1 month after injury revealed significantly higher fibrosis in mdx hearts, with a more robust and longer-lasting immune response compared to wild type hearts. In the 30-hour group, losartan treatment initiated 1 h before Iso injection protected dystrophic hearts from cardiac damage, reducing mdx acute injury area by 2.8-fold, without any significant effect on injury in wild type hearts. However, both wild type and dystrophic hearts showed a 2-fold reduction in the magnitude of the macrophage response to injury 30 h after Iso with losartan. CONCLUSIONS This work demonstrates that acute blockade of AT1R has the potential for robust injury prevention in a model of Iso-induced dystrophic heart injury. In addition to selectively limiting dystrophic cardiac damage, blocking AT1R may serve to limit the inflammatory nature of the immune response to injury in all hearts. Our findings strongly suggest that earlier adoption of angiotensin receptor blockers in DMD patients could limit myocardial damage and subsequent cardiomyopathy.
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MESH Headings
- Angiotensin II Type 1 Receptor Blockers/pharmacology
- Animals
- Cardiomyopathies/drug therapy
- Cardiomyopathies/genetics
- Cardiomyopathies/pathology
- Dystrophin/genetics
- Heart/drug effects
- Heart/physiopathology
- Humans
- Isoproterenol/pharmacology
- Losartan/pharmacology
- Mice
- Mice, Inbred mdx
- Muscle, Skeletal/metabolism
- Muscle, Skeletal/pathology
- Muscular Dystrophy, Duchenne/drug therapy
- Muscular Dystrophy, Duchenne/genetics
- Muscular Dystrophy, Duchenne/pathology
- Myocytes, Cardiac/drug effects
- Myocytes, Cardiac/pathology
- Receptor, Angiotensin, Type 1/genetics
- Sarcolemma/metabolism
- Sarcolemma/pathology
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Affiliation(s)
- Tatyana A Meyers
- Department of Integrative Biology and Physiology, University of Minnesota Medical School, Minneapolis, MN, USA
| | - Jackie A Heitzman
- Department of Integrative Biology and Physiology, University of Minnesota Medical School, Minneapolis, MN, USA
| | - Aimee M Krebsbach
- Department of Integrative Biology and Physiology, University of Minnesota Medical School, Minneapolis, MN, USA; Lillehei Heart Institute, University of Minnesota Medical School, Minneapolis, MN, USA
| | - Lauren M Aufdembrink
- Department of Integrative Biology and Physiology, University of Minnesota Medical School, Minneapolis, MN, USA
| | - Robert Hughes
- Department of Integrative Biology and Physiology, University of Minnesota Medical School, Minneapolis, MN, USA
| | - Alessandro Bartolomucci
- Department of Integrative Biology and Physiology, University of Minnesota Medical School, Minneapolis, MN, USA
| | - DeWayne Townsend
- Department of Integrative Biology and Physiology, University of Minnesota Medical School, Minneapolis, MN, USA; Lillehei Heart Institute, University of Minnesota Medical School, Minneapolis, MN, USA.
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11
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Preidl RHM, Möbius P, Weber M, Amann K, Neukam FW, Kesting M, Geppert CI, Wehrhan F. Long-term endothelial dysfunction in irradiated vessels: an immunohistochemical analysis. Strahlenther Onkol 2018; 195:52-61. [DOI: 10.1007/s00066-018-1382-3] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2018] [Accepted: 10/03/2018] [Indexed: 12/28/2022]
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12
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Liang X, Zheng S, Cui J, Yu D, Yang G, Zhou L, Wang B, Cai L, Li W. Alterations of MicroRNA Expression in the Liver, Heart, and Testis of Mice Upon Exposure to Repeated Low-Dose Radiation. Dose Response 2018; 16:1559325818799561. [PMID: 30263020 PMCID: PMC6153535 DOI: 10.1177/1559325818799561] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2018] [Revised: 07/30/2018] [Accepted: 08/07/2018] [Indexed: 12/11/2022] Open
Abstract
MicroRNAs (miRs), which regulate target gene expression at the
post-transcriptional level, play a crucial role in inducing biological effects
upon high-dose ionizing radiation. Yet, the miR expression profiles in response
to repeated low-dose radiation (LDR) in vivo have not been elucidated. This
study investigated the response profiles of 11 miRs with functions involved in
metabolism, DNA damage and repair, inflammation, and fibrosis in mouse liver,
heart, and testis upon repeated LDR exposure for 4 months. The expression
profiles were evaluated using stem-loop quantitative reverse transcription
polymerase chain reaction immediately and at 2 months after LDR exposure. The
expression profiles varied significantly at both time points. At the organ
level, the heart was the most affected, followed by the liver and testis, in
which significant miR upregulation related to DNA damage response was found.
Metabolism-related miRs decreased in the liver and increased in the testis. The
current results showed immediate and long-lasting alterations in the miR
expression profiles in response to repeated LDR in different organs.
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Affiliation(s)
- Xinyue Liang
- Cancer Center, The First Hospital of Jilin University, Changchun, China.,Pediatric Research Institute, Department of Pediatrics of the University of Louisville, Louisville, KY, USA
| | - Shirong Zheng
- Pediatric Research Institute, Department of Pediatrics of the University of Louisville, Louisville, KY, USA
| | - Jiuwei Cui
- Cancer Center, The First Hospital of Jilin University, Changchun, China
| | - Dehai Yu
- Cancer Center, The First Hospital of Jilin University, Changchun, China
| | - Guozi Yang
- Cancer Center, The First Hospital of Jilin University, Changchun, China
| | - Lei Zhou
- Cancer Center, The First Hospital of Jilin University, Changchun, China
| | - Brain Wang
- Department of Radiation Oncology, The University of Louisville, Louisville, KY, USA
| | - Lu Cai
- Pediatric Research Institute, Department of Pediatrics of the University of Louisville, Louisville, KY, USA.,Department of Radiation Oncology, The University of Louisville, Louisville, KY, USA
| | - Wei Li
- Cancer Center, The First Hospital of Jilin University, Changchun, China
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13
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Sievert W, Stangl S, Steiger K, Multhoff G. Improved Overall Survival of Mice by Reducing Lung Side Effects After High-Precision Heart Irradiation Using a Small Animal Radiation Research Platform. Int J Radiat Oncol Biol Phys 2018; 101:671-679. [DOI: 10.1016/j.ijrobp.2018.02.017] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2017] [Revised: 12/14/2017] [Accepted: 02/07/2018] [Indexed: 12/27/2022]
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14
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Lysek-Gladysinska M, Wieczorek A, Walaszczyk A, Jelonek K, Jozwik A, Pietrowska M, Dörr W, Gabrys D, Widlak P. Long-term effects of low-dose mouse liver irradiation involve ultrastructural and biochemical changes in hepatocytes that depend on lipid metabolism. RADIATION AND ENVIRONMENTAL BIOPHYSICS 2018; 57:123-132. [PMID: 29470638 DOI: 10.1007/s00411-018-0734-9] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2017] [Accepted: 02/16/2018] [Indexed: 06/08/2023]
Abstract
The aim of the study was to investigate long-term effects of radiation on the (ultra)structure and function of the liver in mice. The experiments were conducted on wild-type C57BL/6J and apolipoprotein E knock-out (ApoE-/-) male mice which received a single dose (2 or 8 Gy) of X-rays to the heart with simultaneous exposure of liver to low doses (no more than 30 and 120 mGy, respectively). Livers were collected for analysis 60 weeks after irradiation and used for morphological, ultrastructural, and biochemical studies. The results show increased damage to mitochondrial ultrastructure and lipid deposition in hepatocytes of irradiated animals as compared to non-irradiated controls. Stronger radiation-related effects were noted in ApoE-/- mice than wild-type animals. In contrast, radiation-related changes in the activity of lysosomal hydrolases, including acid phosphatase, β-glucuronidase, N-acetyl-β-D-hexosaminidase, β-galactosidase, and α-glucosidase, were observed in wild type but not in ApoE-deficient mice, which together with ultrastructural picture suggests a higher activity of autophagy in ApoE-proficient animals. Irradiation caused a reduction of plasma markers of liver damage in wild-type mice, while an increased level of hepatic lipase was observed in plasma of ApoE-deficient mice, which collectively indicates a higher resistance of hepatocytes from ApoE-proficient animals to radiation-mediated damage. In conclusion, liver dysfunctions were observed as late effects of irradiation with an apparent association with malfunction of lipid metabolism.
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Affiliation(s)
- Malgorzata Lysek-Gladysinska
- Department of Cell Biology and Electron Microscopy, Institute of Biology, University of Jan Kochanowski, Swietokrzyska 15, 25-406, Kielce, Poland.
| | - Anna Wieczorek
- Department of Cell Biology and Electron Microscopy, Institute of Biology, University of Jan Kochanowski, Swietokrzyska 15, 25-406, Kielce, Poland
| | - Anna Walaszczyk
- Maria Sklodowska-Curie Institute, Oncology Center, Gliwice Branch Wybrzeze Armii Krajowej 15, 44-101, Gliwice, Poland
| | - Karol Jelonek
- Maria Sklodowska-Curie Institute, Oncology Center, Gliwice Branch Wybrzeze Armii Krajowej 15, 44-101, Gliwice, Poland
| | - Artur Jozwik
- Institute of Genetics and Animal Breeding, Polish Academy of Sciences, 05-552, Jastrzebiec, Poland
| | - Monika Pietrowska
- Maria Sklodowska-Curie Institute, Oncology Center, Gliwice Branch Wybrzeze Armii Krajowej 15, 44-101, Gliwice, Poland
| | - Wolfgang Dörr
- Department of Radiotherapy and Radiation Oncology, Medical Faculty Carl Gustav Carus, University of Technology, Dresden, Germany
- Department of Radiation Oncology, ATRAB, Applied and Translational Radiobiology, Medical University Vienna, Vienna, Austria
| | - Dorota Gabrys
- Maria Sklodowska-Curie Institute, Oncology Center, Gliwice Branch Wybrzeze Armii Krajowej 15, 44-101, Gliwice, Poland
| | - Piotr Widlak
- Maria Sklodowska-Curie Institute, Oncology Center, Gliwice Branch Wybrzeze Armii Krajowej 15, 44-101, Gliwice, Poland
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15
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Nordstrom M, Felton E, Sear K, Tamrazi B, Torkildson J, Gauvain K, Haas-Kogan DA, Chen J, Del Buono B, Banerjee A, Samuel D, Saloner D, Tian B, Roddy E, Hess C, Fullerton H, Mueller S. Large Vessel Arteriopathy After Cranial Radiation Therapy in Pediatric Brain Tumor Survivors. J Child Neurol 2018; 33:359-366. [PMID: 29575995 PMCID: PMC5873308 DOI: 10.1177/0883073818756729] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Among childhood cancer survivors, increased stroke risk after cranial radiation therapy may be caused by radiation-induced arteriopathy, but limited data exist to support this hypothesis. Herein, we assess the timing and presence of cerebral arteriopathy identified by magnetic resonance angiography (MRA) after cranial radiation therapy in childhood brain tumor survivors. In a cohort of 115 pediatric brain tumor survivors, we performed chart abstraction and prospective annual follow-up to assess the presence of large vessel cerebral arteriopathy by MRA. We identified 10 patients with cerebral arteriopathy. The cumulative incidence of arteriopathy 5 years post-cranial radiation therapy was 5.4% (CI 0.6%-10%) and 10 years was 16% (CI 4.6%-26%). One patient had an arterial ischemic stroke 2.4 years post-cranial radiation therapy in the distribution of a radiation-induced stenotic artery. We conclude that large vessel arteriopathies can occur within a few years of cranial radiation therapy and can become apparent on MRA in under a year.
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Affiliation(s)
| | - Erin Felton
- Department of Neurology, University of California, San Francisco
| | - Katherine Sear
- Department of Neurology, University of California, San Francisco
| | - Benita Tamrazi
- Department of Radiology, Children’s Hospital of Los Angeles
| | | | - Karen Gauvain
- Department of Pediatrics, Washington University, St. Louis, Missouri
| | - Daphne A. Haas-Kogan
- Department of Radiation Oncology, Brigham and Woman’s Hospital, Dana-Farber Cancer Institute, Boston Children’s Hospital, Harvard Medical School
| | - Josephine Chen
- Department of Radiation Oncology, University of California, San Francisco
| | | | - Anuradha Banerjee
- Department of Pediatrics, University of California, San Francisco,Department of Neurological Surgery, University of California, San Francisco
| | - David Samuel
- Department of Pediatrics, Valley Children’s Hospital, Madera
| | - David Saloner
- Department of Radiology and Biomedical Imaging, University of California, San Francisco
| | - Bing Tian
- Department of Radiology and Biomedical Imaging, University of California, San Francisco
| | - Erika Roddy
- School of Medicine, University of California, San Francisco
| | - Christopher Hess
- Department of Neurology, University of California, San Francisco,Department of Radiology and Biomedical Imaging, University of California, San Francisco
| | - Heather Fullerton
- Department of Pediatrics, University of California, San Francisco,Department of Neurology, University of California, San Francisco
| | - Sabine Mueller
- Department of Pediatrics, University of California, San Francisco,Department of Neurology, University of California, San Francisco,Department of Neurological Surgery, University of California, San Francisco
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16
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Walaszczyk A, Szołtysek K, Jelonek K, Polańska J, Dörr W, Haagen J, Widłak P, Gabryś D. Heart irradiation reduces microvascular density and accumulation of HSPA1 in mice. Strahlenther Onkol 2017; 194:235-242. [PMID: 29063166 PMCID: PMC5847036 DOI: 10.1007/s00066-017-1220-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2017] [Accepted: 09/19/2017] [Indexed: 12/15/2022]
Abstract
PURPOSE Improvement of radiotherapy techniques reduces the exposure of normal tissues to ionizing radiation. However, the risk of radiation-related late effects remains elevated. In the present study, we investigated long-term effects of radiation on heart muscle morphology. MATERIALS AND METHODS We established a mouse model to study microvascular density (MVD), deposition of collagen fibers, and changes in accumulation of heat shock 70 kDa protein 1 (HSPA1) in irradiated heart tissue. Hearts of C57BL/6 mice received a single dose of X‑ray radiation in the range 0.2-16 Gy. Analyses were performed 20, 40, and 60 weeks after irradiation. RESULTS Reduction in MD was revealed as a long-term effect observed 20-60 weeks after irradiation. Moreover, a significant and dose-dependent increase in accumulation of HSPA1, both cytoplasmic and nuclear, was observed in heart tissues collected 20 weeks after irradiation. We also noticed an increase in collagen deposition in hearts treated with higher doses. CONCLUSIONS This study shows that some changes induced by radiation in the heart tissue, such as reduction in microvessel density, increase in collagen deposition, and accumulation of HSPA1, are observed as long-term effects which might be associated with late radiation cardiotoxicity.
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Affiliation(s)
- Anna Walaszczyk
- Center for Translational Research and Molecular Biology of Cancer, Maria Skłodowska-Curie Memorial Cancer Center and Institute of Oncology Gliwice Branch, Wybrzeże Armii Krajowej 15, 44-101, Gliwice, Poland
| | - Katarzyna Szołtysek
- Center for Translational Research and Molecular Biology of Cancer, Maria Skłodowska-Curie Memorial Cancer Center and Institute of Oncology Gliwice Branch, Wybrzeże Armii Krajowej 15, 44-101, Gliwice, Poland
| | - Karol Jelonek
- Center for Translational Research and Molecular Biology of Cancer, Maria Skłodowska-Curie Memorial Cancer Center and Institute of Oncology Gliwice Branch, Wybrzeże Armii Krajowej 15, 44-101, Gliwice, Poland
| | | | - Wolfgang Dörr
- Department of Radiotherapy and Radiooncology, Medical Faculty Carl Gustav Carus, University of Technology, Dresden, Germany.,Department of Radiation Oncology, Applied and Translational Radiobiology (ATRAB), Medical University Vienna, Vienna, Austria
| | - Julia Haagen
- Department of Radiotherapy and Radiooncology, Medical Faculty Carl Gustav Carus, University of Technology, Dresden, Germany
| | - Piotr Widłak
- Center for Translational Research and Molecular Biology of Cancer, Maria Skłodowska-Curie Memorial Cancer Center and Institute of Oncology Gliwice Branch, Wybrzeże Armii Krajowej 15, 44-101, Gliwice, Poland
| | - Dorota Gabryś
- Department of Radiotherapy, Maria Skłodowska-Curie Memorial Cancer Center and Institute of Oncology Gliwice Branch, Wybrzeże Armii Krajowej 15, 44-101, Gliwice, Poland.
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17
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Re-expression of pro-fibrotic, embryonic preserved mediators in irradiated arterial vessels of the head and neck region. Strahlenther Onkol 2017; 193:951-960. [DOI: 10.1007/s00066-017-1192-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2017] [Accepted: 07/28/2017] [Indexed: 01/19/2023]
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18
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Seawright JW, Samman Y, Sridharan V, Mao XW, Cao M, Singh P, Melnyk S, Koturbash I, Nelson GA, Hauer-Jensen M, Boerma M. Effects of low-dose rate γ-irradiation combined with simulated microgravity on markers of oxidative stress, DNA methylation potential, and remodeling in the mouse heart. PLoS One 2017; 12:e0180594. [PMID: 28678877 PMCID: PMC5498037 DOI: 10.1371/journal.pone.0180594] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2016] [Accepted: 06/16/2017] [Indexed: 01/31/2023] Open
Abstract
Purpose Space travel is associated with an exposure to low-dose rate ionizing radiation and the microgravity environment, both of which may lead to impairments in cardiac function. We used a mouse model to determine short- and long-term cardiac effects to simulated microgravity (hindlimb unloading; HU), continuous low-dose rate γ-irradiation, or a combination of HU and low-dose rate γ-irradiation. Methods Cardiac tissue was obtained from female, C57BL/6J mice 7 days, 1 month, 4 months, and 9 months following the completion of a 21 day exposure to HU or a 21 day exposure to low-dose rate γ-irradiation (average dose rate of 0.01 cGy/h to a total of 0.04 Gy), or a 21 day simultaneous exposure to HU and low-dose rate γ-irradiation. Immunoblot analysis, rt-PCR, high-performance liquid chromatography, and histology were used to assess inflammatory cell infiltration, cardiac remodeling, oxidative stress, and the methylation potential of cardiac tissue in 3 to 6 animals per group. Results The combination of HU and γ-irradiation demonstrated the strongest increase in reduced to oxidized glutathione ratios 7 days and 1 month after treatment, but a difference was no longer apparent after 9 months. On the other hand, no significant changes in 4-hydroxynonenal adducts was seen in any of the groups, at the measured endpoints. While manganese superoxide dismutase protein levels decreased 9 months after low-dose γ-radiation, no changes were observed in expression of catalase or Nrf2, a transcription factor that determines the expression of several antioxidant enzymes, at the measured endpoints. Inflammatory marker, CD-2 protein content was significantly decreased in all groups 4 months after treatment. No significant differences were observed in α-smooth muscle cell actin protein content, collagen type III protein content or % total collagen. Conclusions This study has provided the first and relatively broad analysis of small molecule and protein markers of oxidative stress, T-lymphocyte infiltration, and cardiac remodeling in response to HU with simultaneous exposure to low-dose rate γ-radiation. Results from the late observation time points suggest that the hearts had mostly recovered from these two experimental conditions. However, further research is needed with larger numbers of animals for a more robust statistical power to fully characterize the early and late effects of simulated microgravity combined with exposure to low-dose rate ionizing radiation on the heart.
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Affiliation(s)
- John W. Seawright
- Division of Radiation Health, Department of Pharmaceutical Sciences, University of Arkansas for Medical Sciences, Little Rock, AR, The United States of America
- * E-mail:
| | - Yusra Samman
- Division of Radiation Health, Department of Pharmaceutical Sciences, University of Arkansas for Medical Sciences, Little Rock, AR, The United States of America
| | - Vijayalakshmi Sridharan
- Division of Radiation Health, Department of Pharmaceutical Sciences, University of Arkansas for Medical Sciences, Little Rock, AR, The United States of America
| | - Xiao Wen Mao
- Department of Basic Sciences and Radiation Medicine, Loma Linda University, Loma Linda, CA, The United States of America
| | - Maohua Cao
- Division of Radiation Health, Department of Pharmaceutical Sciences, University of Arkansas for Medical Sciences, Little Rock, AR, The United States of America
| | - Preeti Singh
- Division of Radiation Health, Department of Pharmaceutical Sciences, University of Arkansas for Medical Sciences, Little Rock, AR, The United States of America
| | - Stepan Melnyk
- Department of Pediatrics, University of Arkansas for Medical Sciences, Little Rock, AR, The United States of America
| | - Igor Koturbash
- Department of Environmental and Occupational Health, University of Arkansas for Medical Sciences, Little Rock, AR, The United States of America
| | - Gregory A. Nelson
- Department of Basic Sciences and Radiation Medicine, Loma Linda University, Loma Linda, CA, The United States of America
| | - Martin Hauer-Jensen
- Division of Radiation Health, Department of Pharmaceutical Sciences, University of Arkansas for Medical Sciences, Little Rock, AR, The United States of America
| | - Marjan Boerma
- Division of Radiation Health, Department of Pharmaceutical Sciences, University of Arkansas for Medical Sciences, Little Rock, AR, The United States of America
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19
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Zhong H, Cai Y, Cheng J, Cai D, Chen L, Su C, Li K, Chen P, Xu J, Cui L. Apolipoprotein E Epsilon 4 Enhances the Association between the rs2910164 Polymorphism of miR-146a and Risk of Atherosclerotic Cerebral Infarction. J Atheroscler Thromb 2016; 23:819-29. [PMID: 26875519 DOI: 10.5551/jat.32904] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
AIM To analyse the relationship between two potentially functional single-nucleotide polymorphisms (SNPs) of the miR-146a gene (rs2910164 and rs57095329) and the risk of atherosclerotic cerebral infarction (ACI). METHODS A total of 297 patients with ACI and 300 matched healthy individuals were enrolled in the study. The miR-146a polymorphism was detected using the polymerase chain reaction-restriction fragment length polymorphism method. RESULTS A significant difference in the C allele frequency at rs2910164 (p=0.028) was noted between patients with ACI and control subjects. In contrast, the genotype and allele frequencies of rs57095329 were not statistically associated with ACI. In addition, the decreased expression of miR-146a was significantly more frequent in ACI patients who were ApoEε4 (+) carriers (p=0.0233), and rs2910164 G>C was intimately associated with the ApoEε4-containing genotype in patients compared with the ApoEε4 (-) carriers (p=0.0323). CONCLUSIONS Our findings indicated that the C allele of rs2910164 miR-146a is an important risk factor for ACI, and ApoEε4 may function through attenuating miR-146a expression to enhance ACI susceptibility. This study provides new information about the possible relationship between miR-146a and ApoEε4 in the development of ACI, with potentially important therapeutic implications.
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Affiliation(s)
- Huidong Zhong
- Department of Neurosurgery, Affiliated second Hospital, Guangdong Medical University
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20
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Late proliferating and inflammatory effects on murine microvascular heart and lung endothelial cells after irradiation. Radiother Oncol 2015; 117:376-81. [DOI: 10.1016/j.radonc.2015.07.029] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2015] [Revised: 07/07/2015] [Accepted: 07/21/2015] [Indexed: 12/27/2022]
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21
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Mathias D, Mitchel REJ, Barclay M, Wyatt H, Bugden M, Priest ND, Whitman SC, Scholz M, Hildebrandt G, Kamprad M, Glasow A. Low-dose irradiation affects expression of inflammatory markers in the heart of ApoE -/- mice. PLoS One 2015; 10:e0119661. [PMID: 25799423 PMCID: PMC4370602 DOI: 10.1371/journal.pone.0119661] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2014] [Accepted: 01/21/2015] [Indexed: 01/17/2023] Open
Abstract
Epidemiological studies indicate long-term risks of ionizing radiation on the heart, even at moderate doses. In this study, we investigated the inflammatory, thrombotic and fibrotic late responses of the heart after low-dose irradiation (IR) with specific emphasize on the dose rate. Hypercholesterolemic ApoE-deficient mice were sacrificed 3 and 6 months after total body irradiation (TBI) with 0.025, 0.05, 0.1, 0.5 or 2 Gy at low (1 mGy/min) or high dose rate (150 mGy/min). The expression of inflammatory and thrombotic markers was quantified in frozen heart sections (CD31, E-selectin, thrombomodulin, ICAM-1, VCAM-1, collagen IV, Thy-1, and CD45) and in plasma samples (IL6, KC, MCP-1, TNFα, INFγ, IL-1β, TGFβ, INFγ, IL-10, sICAM-1, sE-selectin, sVCAM-1 and fibrinogen) by fluorescence analysis and ELISA. We found that even very low irradiation doses induced adaptive late responses, such as increases of capillary density and changes in collagen IV and Thy-1 levels indicating compensatory regulation. Slight decreases of ICAM-1 levels and reduction of Thy 1 expression at 0.025–0.5 Gy indicate anti-inflammatory effects, whereas at the highest dose (2 Gy) increased VCAM-1 levels on the endocardium may represent a switch to a pro-inflammatory response. Plasma samples partially confirmed this pattern, showing a decrease of proinflammatory markers (sVCAM, sICAM) at 0.025–2.0 Gy. In contrast, an enhancement of MCP-1, TNFα and fibrinogen at 0.05–2.0 Gy indicated a proinflammatory and prothrombotic systemic response. Multivariate analysis also revealed significant age-dependent increases (KC, MCP-1, fibrinogen) and decreases (sICAM, sVCAM, sE-selectin) of plasma markers. This paper represents local and systemic effects of low-dose irradiation, including also age- and dose rate-dependent responses in the ApoE-/- mouse model. These insights in the multiple inflammatory/thrombotic effects caused by low-dose irradiation might facilitate an individual evaluation and intervention of radiation related, long-term side effects but also give important implications for low dose anti-inflammatory radiotherapy.
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Affiliation(s)
- Daniel Mathias
- Department of Radiation Therapy, University of Leipzig, Leipzig, Germany
| | - Ronald E. J. Mitchel
- Radiological Protection Research and Instrumentation Branch, Canadian Nuclear Laboratories, Chalk River, Ontario, Canada
| | - Mirela Barclay
- Departments of Pathology and Laboratory Medicine and Cellular and Molecular Medicine, University of Ottawa, Ottawa, Ontario, Canada
- Vascular Biology Group, University of Ottawa Heart Institute, Ottawa, Ontario, Canada
| | - Heather Wyatt
- Radiological Protection Research and Instrumentation Branch, Canadian Nuclear Laboratories, Chalk River, Ontario, Canada
| | - Michelle Bugden
- Radiological Protection Research and Instrumentation Branch, Canadian Nuclear Laboratories, Chalk River, Ontario, Canada
| | - Nicholas D. Priest
- Radiological Protection Research and Instrumentation Branch, Canadian Nuclear Laboratories, Chalk River, Ontario, Canada
| | - Stewart C. Whitman
- Departments of Pathology and Laboratory Medicine and Cellular and Molecular Medicine, University of Ottawa, Ottawa, Ontario, Canada
- Vascular Biology Group, University of Ottawa Heart Institute, Ottawa, Ontario, Canada
| | - Markus Scholz
- Institute for Medical Informatics, Statistics and Epidemiology, University of Leipzig, Germany
| | - Guido Hildebrandt
- Department of Radiotherapy and Radiation Oncology, University of Rostock, Rostock, Germany
| | - Manja Kamprad
- Institute of Clinical Immunology and Transfusion Medicine, University of Leipzig, Leipzig, Germany
| | - Annegret Glasow
- Department of Radiation Therapy, University of Leipzig, Leipzig, Germany
- * E-mail:
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