1
|
Day RM, Rittase WB, Slaven JE, Lee SH, Brehm GV, Bradfield DT, Muir JM, Wise SY, Fatanmi OO, Singh VK. Iron Deposition in the Bone Marrow and Spleen of Nonhuman Primates with Acute Radiation Syndrome. Radiat Res 2023; 200:593-600. [PMID: 37967581 PMCID: PMC10754359 DOI: 10.1667/rade-23-00107.1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2023] [Accepted: 10/23/2023] [Indexed: 11/17/2023]
Abstract
The risk of exposure to high levels of ionizing radiation from nuclear weapons or radiological accidents is an increasing world concern. Partial- or total-body exposure to high doses of radiation is potentially lethal through the induction of acute radiation syndrome (ARS). Hematopoietic cells are sensitive to radiation exposure; white blood cells primarily undergo apoptosis while red blood cells (RBCs) undergo hemolysis. Several laboratories demonstrated that the rapid hemolysis of RBCs results in the release of acellular iron into the blood. We recently demonstrated using a murine model of ARS after total-body irradiation (TBI) and the loss of RBCs, iron accumulated in the bone marrow and spleen, notably between 4-21 days postirradiation. Here, we investigated iron accumulation in the bone marrow and spleens from TBI nonhuman primates (NHPs) using histological stains. We observed trends in increased intracellular and extracellular brown pigmentation in the bone marrow after various doses of radiation, especially after 4-15 days postirradiation, but these differences did not reach significance. We observed a significant increase in Prussian blue-staining intracellular iron deposition in the spleen 13-15 days after 5.8-8.5 Gy of TBI. We observed trends of increased iron in the spleen after 30-60 days postirradiation, with varying doses of radiation, but these differences did not reach significance. The NHP model of ARS confirms our earlier findings in the murine model, showing iron deposition in the bone marrow and spleen after TBI.
Collapse
Affiliation(s)
- Regina M. Day
- Division of Radioprotectants, Department of Pharmacology and Molecular Therapeutics, F. Edward Hébert School of Medicine, Uniformed Services University of the Health Sciences, Bethesda, Maryland 20814
| | - W. Bradley Rittase
- Division of Radioprotectants, Department of Pharmacology and Molecular Therapeutics, F. Edward Hébert School of Medicine, Uniformed Services University of the Health Sciences, Bethesda, Maryland 20814
| | - John E. Slaven
- Division of Radioprotectants, Department of Pharmacology and Molecular Therapeutics, F. Edward Hébert School of Medicine, Uniformed Services University of the Health Sciences, Bethesda, Maryland 20814
| | - Sang-Ho Lee
- Pathology Department, Research Services, Naval Medical Research Center, Silver Spring, Maryland 20910
| | - Grace V. Brehm
- Division of Radioprotectants, Department of Pharmacology and Molecular Therapeutics, F. Edward Hébert School of Medicine, Uniformed Services University of the Health Sciences, Bethesda, Maryland 20814
| | - Dmitry T. Bradfield
- Division of Radioprotectants, Department of Pharmacology and Molecular Therapeutics, F. Edward Hébert School of Medicine, Uniformed Services University of the Health Sciences, Bethesda, Maryland 20814
| | - Jeannie M. Muir
- Department of Pathology, Uniformed Services University of the Health Sciences, Bethesda, Maryland 20814
| | - Stephen Y. Wise
- Division of Radioprotectants, Department of Pharmacology and Molecular Therapeutics, F. Edward Hébert School of Medicine, Uniformed Services University of the Health Sciences, Bethesda, Maryland 20814
- Armed Forces Radiobiology Research Institute, Uniformed Services University of the Health Sciences, Bethesda, Maryland 20814
| | - Oluseyi O. Fatanmi
- Division of Radioprotectants, Department of Pharmacology and Molecular Therapeutics, F. Edward Hébert School of Medicine, Uniformed Services University of the Health Sciences, Bethesda, Maryland 20814
- Armed Forces Radiobiology Research Institute, Uniformed Services University of the Health Sciences, Bethesda, Maryland 20814
| | - Vijay K. Singh
- Division of Radioprotectants, Department of Pharmacology and Molecular Therapeutics, F. Edward Hébert School of Medicine, Uniformed Services University of the Health Sciences, Bethesda, Maryland 20814
- Armed Forces Radiobiology Research Institute, Uniformed Services University of the Health Sciences, Bethesda, Maryland 20814
| |
Collapse
|
2
|
Sardo U, Perrier P, Cormier K, Sotin M, Desquesnes A, Cannizzo L, Ruiz-Martinez M, Thevenin J, Billoré B, Jung G, Abboud E, Peyssonnaux C, Nemeth E, Ginzburg YZ, Ganz T, Kautz L. The hepatokine FGL1 regulates hepcidin and iron metabolism during the recovery from hemorrhage-induced anemia in mice. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.04.06.535920. [PMID: 37066218 PMCID: PMC10104156 DOI: 10.1101/2023.04.06.535920] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/18/2023]
Abstract
As a functional component of erythrocyte hemoglobin, iron is essential for oxygen delivery to all tissues in the body. The liver-derived peptide hepcidin is the master regulator of iron homeostasis. During anemia, the erythroid hormone erythroferrone regulates hepcidin synthesis to ensure adequate supply of iron to the bone marrow for red blood cells production. However, mounting evidence suggested that another factor may exert a similar function. We identified the hepatokine FGL1 as a previously undescribed suppressor of hepcidin that is induced in the liver in response to hypoxia during the recovery from anemia and in thalassemic mice. We demonstrated that FGL1 is a potent suppressor of hepcidin in vitro and in vivo . Deletion of Fgl1 in mice results in a blunted repression of hepcidin after bleeding. FGL1 exerts its activity by direct binding to BMP6, thereby inhibiting the canonical BMP-SMAD signaling cascade that controls hepcidin transcription. Key points 1/ FGL1 regulates iron metabolism during the recovery from anemia. 2/ FGL1 is an antagonist of the BMP/SMAD signaling pathway.
Collapse
|
3
|
Zhang X, Zuo R, Xiao S, Wang L. Association between iron metabolism and non-alcoholic fatty liver disease: results from the National Health and Nutrition Examination Survey (NHANES 2017-2018) and a controlled animal study. Nutr Metab (Lond) 2022; 19:81. [PMID: 36514155 PMCID: PMC9749311 DOI: 10.1186/s12986-022-00715-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2022] [Accepted: 11/30/2022] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND Iron metabolism may be involved in the pathogenesis of the non-alcoholic fatty liver disease (NAFLD). The relationship between iron metabolism and NAFLD has not been clearly established. This study aimed to clarify the relationship between biomarkers of iron metabolism and NAFLD. METHODS Based on the National Health and Nutrition Examination Survey (NHANES), restricted cubic spline models and multivariable logistic regression were used to examine the association between iron metabolism [serum iron (SI), serum ferritin (SF), transferrin saturation (TSAT), and soluble transferrin receptor (sTfR)] and the risk for NAFLD. In addition, stratified subgroup analysis was performed for the association between TSAT and NAFLD. Moreover, serum TSAT levels were determined in male mice with NAFLD. The expression of hepcidin and ferroportin, vital regulators of iron metabolism, were analyzed in the livers of mice by quantitative real-time PCR (qRT-PCR) and patients with NAFLD by microarray collected from the GEO data repository. RESULTS Patients with NAFLD showed decreased SI, SF, and TSAT levels and increased STfR levels based on the NHANES. After adjusting for confounding factors, TSAT was significantly negatively correlated with NAFLD. Of note, the relationship between TSAT and NAFLD differed in the four subgroups of age, sex, race, and BMI (P for interaction < 0.05). Consistently, mice with NAFLD exhibited decreased serum TSAT levels. Decreased hepcidin and increased ferroportin gene expression were observed in the livers of patients and mice with NAFLD. CONCLUSION Serum TSAT levels and hepatic hepcidin expression were decreased in both patients and mice with NAFLD. Among multiple biomarkers of iron metabolism, lower TSAT levels were significantly associated with a higher risk of NAFLD in the U.S. general population. These findings might provide new ideas for the prediction, diagnosis, and mechanistic exploration of NAFLD.
Collapse
Affiliation(s)
- Xinxin Zhang
- grid.254147.10000 0000 9776 7793School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, 211198 China
| | - Ronghua Zuo
- grid.412676.00000 0004 1799 0784Department of Anesthesiology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029 Jiangsu China
| | - Shengjue Xiao
- grid.263826.b0000 0004 1761 0489Department of Cardiology, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, 210009 China
| | - Lirui Wang
- grid.41156.370000 0001 2314 964XInstitute of Modern Biology, Nanjing University, 22 Hankou Road, Gulou, Nanjing, 210093 China
| |
Collapse
|
4
|
Rittase WB, Slaven JE, Suzuki YJ, Muir JM, Lee SH, Rusnak M, Brehm GV, Bradfield DT, Symes AJ, Day RM. Iron Deposition and Ferroptosis in the Spleen in a Murine Model of Acute Radiation Syndrome. Int J Mol Sci 2022; 23:ijms231911029. [PMID: 36232330 PMCID: PMC9570444 DOI: 10.3390/ijms231911029] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2022] [Revised: 09/08/2022] [Accepted: 09/14/2022] [Indexed: 11/16/2022] Open
Abstract
Total body irradiation (TBI) can result in death associated with hematopoietic insufficiency. Although radiation causes apoptosis of white blood cells, red blood cells (RBC) undergo hemolysis due to hemoglobin denaturation. RBC lysis post-irradiation results in the release of iron into the plasma, producing a secondary toxic event. We investigated radiation-induced iron in the spleens of mice following TBI and the effects of the radiation mitigator captopril. RBC and hematocrit were reduced ~7 days (nadir ~14 days) post-TBI. Prussian blue staining revealed increased splenic Fe3+ and altered expression of iron binding and transport proteins, determined by qPCR, western blotting, and immunohistochemistry. Captopril did not affect iron deposition in the spleen or modulate iron-binding proteins. Caspase-3 was activated after ~7–14 days, indicating apoptosis had occurred. We also identified markers of iron-dependent apoptosis known as ferroptosis. The p21/Waf1 accelerated senescence marker was not upregulated. Macrophage inflammation is an effect of TBI. We investigated the effects of radiation and Fe3+ on the J774A.1 murine macrophage cell line. Radiation induced p21/Waf1 and ferritin, but not caspase-3, after ~24 h. Radiation ± iron upregulated several markers of pro-inflammatory M1 polarization; radiation with iron also upregulated a marker of anti-inflammatory M2 polarization. Our data indicate that following TBI, iron accumulates in the spleen where it regulates iron-binding proteins and triggers apoptosis and possible ferroptosis.
Collapse
Affiliation(s)
- W. Bradley Rittase
- Department of Pharmacology and Molecular Therapeutics, Uniformed Services University of the Health Sciences, Bethesda, MD 20814, USA
| | - John E. Slaven
- Department of Pharmacology and Molecular Therapeutics, Uniformed Services University of the Health Sciences, Bethesda, MD 20814, USA
| | - Yuichiro J. Suzuki
- Department of Pharmacology and Physiology, Georgetown University Medical Center, Washington, DC 20007, USA
| | - Jeannie M. Muir
- Department of Pathology, Uniformed Services University of the Health Sciences, Bethesda, MD 20814, USA
| | - Sang-Ho Lee
- Department of Laboratory Animal Research, Uniformed Services University of the Health Sciences, Bethesda, MD 20814, USA
| | - Milan Rusnak
- Department of Pharmacology and Molecular Therapeutics, Uniformed Services University of the Health Sciences, Bethesda, MD 20814, USA
| | - Grace V. Brehm
- Department of Pharmacology and Molecular Therapeutics, Uniformed Services University of the Health Sciences, Bethesda, MD 20814, USA
| | - Dmitry T. Bradfield
- Department of Pharmacology and Molecular Therapeutics, Uniformed Services University of the Health Sciences, Bethesda, MD 20814, USA
| | - Aviva J. Symes
- Department of Pharmacology and Molecular Therapeutics, Uniformed Services University of the Health Sciences, Bethesda, MD 20814, USA
| | - Regina M. Day
- Department of Pharmacology and Molecular Therapeutics, Uniformed Services University of the Health Sciences, Bethesda, MD 20814, USA
- Correspondence: ; Tel.: +1-301-295-3236; Fax: +1-301-295-3220
| |
Collapse
|
5
|
Baran M, Yay A, Onder GO, Canturk Tan F, Yalcin B, Balcioglu E, Yıldız OG. Hepatotoxicity and renal toxicity induced by radiation and the protective effect of quercetin in male albino rats. Int J Radiat Biol 2022; 98:1473-1483. [PMID: 35171756 DOI: 10.1080/09553002.2022.2033339] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
PURPOSE Although radiation is one of the basic methods commonly used in cancer treatment, it inevitably enters the field of treatment in healthy tissues and is adversely affected by the acute and chronic side effects of radiation. This study evaluated the possible protective effects of quercetin, an antioxidant agent, against liver and kidney damage in rats exposed to a whole-body single dose of radiation (10 Gy of gamma-ray). MATERIALS AND METHODS The study groups were formed as control, sham, quercetin, radiation, quercetin + radiation and radiation + quercetin using 60 male Wistar albino (200-250 g, 3 months old) rats, including 10 rats in each group. The gamma-ray provided by the Co60 teletherapy machine was given to the whole body as external irradiation. According to the groups, quercetin was administered to rats at 50 mg/kg/day via oral gavage before or after radiation administration. The rats were sacrificed the day after irradiation and the extracted tissue samples from all groups were compared histologically and immunohistochemically. DNA damage was determined by the neutral comet assay technique. Also, malondialdehyde (MDA) and glutathione peroxidase (GSH) were evaluated in liver and kidney tissues by the ELISA method. RESULTS Histopathological changes were observed altered morphology of liver and kidney tissues in the radiation groups. Sinusoidal dilatations, vacuolization, and hepatic parenchyma necrosis in the liver, while in kidneys, glomerular shrinkage, widened Bowman's space, tubular dilatation, and inflammation were evident. TNF-α, IL1-α, HIF1-α, and caspase 3 immunoreactivities in tissues were determined by immunohistochemistry. High caspase 3 positive cell number confirmed apoptosis, the comet parameters were decreased in the quercetin + radiation group. When compared to the control group, the exposure to radiation showed a marked elevation in MDA which was accompanied by high GSH. This damage was reduced in the quercetin + radiation group. CONCLUSIONS With the results obtained from the study; Quercetin is thought to have a protective potential against radiation-induced liver and kidney damage due to its radioprotective effect.
Collapse
Affiliation(s)
- Munevver Baran
- Department of Pharmaceutical Basic Science, Faculty of Pharmacy, Erciyes University, Kayseri, Turkey
| | - Arzu Yay
- Department of Histology and Embryology, Erciyes University, Faculty of Medicine, Kayseri, Turkey.,Genome and Stem Cell Center (GENKOK), Erciyes University, Kayseri, Turkey
| | - Gozde Ozge Onder
- Department of Histology and Embryology, Erciyes University, Faculty of Medicine, Kayseri, Turkey
| | - Fazile Canturk Tan
- Department of Biophysics, Erciyes University, Faculty of Medicine, Kayseri, Turkey
| | - Betul Yalcin
- Department of Histology and Embryology, Erciyes University, Faculty of Medicine, Kayseri, Turkey
| | - Esra Balcioglu
- Department of Histology and Embryology, Erciyes University, Faculty of Medicine, Kayseri, Turkey.,Genome and Stem Cell Center (GENKOK), Erciyes University, Kayseri, Turkey
| | - Oguz Galip Yıldız
- Department of Radiation Oncology, Erciyes University, Faculty of Medicine, Kayseri, Turkey
| |
Collapse
|
6
|
Zhang X, Li X, Zheng C, Yang C, Zhang R, Wang A, Feng J, Hu X, Chang S, Zhang H. Ferroptosis, a new form of cell death defined after radiation exposure. Int J Radiat Biol 2022; 98:1201-1209. [PMID: 34982648 DOI: 10.1080/09553002.2022.2020358] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
PURPOSE Ferroptosis is an iron-dependent form of regulated cell death, driven by excessive lipid peroxidation and/or inactivation/depletion of protective molecules against lipid peroxidation. Ionizing radiation can induce ferroptosis in both normal tissues and tumor cells. Here, we reviewed the findings of ionizing radiation-induced ferroptosis. CONCLUSIONS Ionizing radiation induces an increase in hydroxyl radicals, free iron, and lipid metabolic enzymes, which subsequently synergistically initiate a high level of lipid peroxidation, making ionizing radiation an exogenous inducer of ferroptosis. In addition, ferroptosis may be the primary form of cell death in the bone marrow under hematopoietic acute radiation syndrome. Ionizing radiation can also induce changes in iron metabolism, which may be a target for regulating ferroptosis. Finally, ionizing radiation-induced ferroptosis initiates from the cytoplasm and ends on the membrane, and is independent of DNA damage.
Collapse
Affiliation(s)
- Xiaohong Zhang
- Department of Nuclear Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing, PR China.,Jiangsu Key Laboratory for Biomaterials and Devices, Southeast University, Nanjing, PR China.,Key Laboratory of Nuclear Technology Application and Radiation Protection in Astronautics (Nanjing University of Aeronautics and Astronautics), Ministry of Industry and Information Technology, Nanjing, PR China.,Collaborative Innovation Centre of Radiation Medicine of Jiangsu Higher Education Institutions, Soochow University, Suzhou, PR China
| | - Xin Li
- Department of Nuclear Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing, PR China
| | - Chunyan Zheng
- Department of Nuclear Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing, PR China
| | - Chunzhi Yang
- Department of Nuclear Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing, PR China
| | - Rui Zhang
- Department of Ophthalmology, Zhongda Hospital, Southeast University, Nanjing, PR China
| | - Ailian Wang
- Department of Ophthalmology, First Affiliated Hospital, Bengbu Medical College, Bengbu, PR China
| | - Jundong Feng
- Department of Nuclear Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing, PR China.,Key Laboratory of Nuclear Technology Application and Radiation Protection in Astronautics (Nanjing University of Aeronautics and Astronautics), Ministry of Industry and Information Technology, Nanjing, PR China
| | - Xiaodan Hu
- Department of Nuclear Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing, PR China
| | - Shuquan Chang
- Department of Nuclear Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing, PR China.,Key Laboratory of Nuclear Technology Application and Radiation Protection in Astronautics (Nanjing University of Aeronautics and Astronautics), Ministry of Industry and Information Technology, Nanjing, PR China
| | - Haiqian Zhang
- Department of Nuclear Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing, PR China.,Jiangsu Key Laboratory for Biomaterials and Devices, Southeast University, Nanjing, PR China.,Key Laboratory of Nuclear Technology Application and Radiation Protection in Astronautics (Nanjing University of Aeronautics and Astronautics), Ministry of Industry and Information Technology, Nanjing, PR China.,Collaborative Innovation Centre of Radiation Medicine of Jiangsu Higher Education Institutions, Soochow University, Suzhou, PR China
| |
Collapse
|
7
|
Zhang J, Zhao H, Yao G, Qiao P, Li L, Wu S. Therapeutic potential of iron chelators on osteoporosis and their cellular mechanisms. Biomed Pharmacother 2021; 137:111380. [PMID: 33601146 DOI: 10.1016/j.biopha.2021.111380] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2020] [Revised: 01/30/2021] [Accepted: 02/08/2021] [Indexed: 12/22/2022] Open
Abstract
Iron is an essential trace element in the metabolism of almost all living organisms. Iron overload can disrupt bone homeostasis by significant inhibition of osteogenic differentiation and stimulation of osteoclastogenesis, consequently leading to osteoporosis. Iron accumulation is also involved in the osteoporosis induced by multiple factors, such as estrogen deficiency, ionizing radiation, and mechanical unloading. Iron chelators are first developed for treating iron overloaded disorders. However, growing evidence suggests that iron chelators can be potentially used for the treatment of bone loss. In this review, we focus on the therapeutic effects of iron chelators on bone loss. Iron chelators have therapeutic effects not only on iron overload induced osteoporosis, but also on osteoporosis induced by estrogen deficiency, ionizing radiation, and mechanical unloading, and in Alzheimer's disease-associated osteoporotic deficits. Iron chelators differently affect the cellular behaviors of bone cells. For osteoblast lineage cells (bone mesenchymal stem cells and osteoblasts), iron chelation stimulates osteogenic differentiation. Conversely, iron chelation significantly inhibits osteoclast differentiation. These different responses may be associated with the different needs of iron during differentiation. Fibroblast growth factor 23, angiogenesis, and antioxidant capability are also involved in the osteoprotective effects of iron chelators.
Collapse
Affiliation(s)
- Jian Zhang
- Institute of Laboratory Animal Science, Guizhou University of Traditional Chinese Medicine, Guiyang, China.
| | - Hai Zhao
- Institute of Laboratory Animal Science, Guizhou University of Traditional Chinese Medicine, Guiyang, China
| | - Gang Yao
- Institute of Laboratory Animal Science, Guizhou University of Traditional Chinese Medicine, Guiyang, China
| | - Penghai Qiao
- Institute of Laboratory Animal Science, Guizhou University of Traditional Chinese Medicine, Guiyang, China
| | - Longfei Li
- Institute of Laboratory Animal Science, Guizhou University of Traditional Chinese Medicine, Guiyang, China
| | - Shuguang Wu
- Institute of Laboratory Animal Science, Guizhou University of Traditional Chinese Medicine, Guiyang, China
| |
Collapse
|
8
|
Miller SJ, Chittajallu S, Sampson C, Fisher A, Unthank JL, Orschell CM. A Potential Role for Excess Tissue Iron in Development of Cardiovascular Delayed Effects of Acute Radiation Exposure. HEALTH PHYSICS 2020; 119:659-665. [PMID: 32868705 PMCID: PMC7541425 DOI: 10.1097/hp.0000000000001314] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Murine hematopoietic-acute radiation syndrome (H-ARS) survivors of total body radiation (TBI) have a significant loss of heart vessel endothelial cells, along with increased tissue iron, as early as 4 mo post-TBI. The goal of the current study was to determine the possible role for excess tissue iron in the loss of coronary artery endothelial cells. Experiments used the H-ARS mouse model with gamma radiation exposure of 853 cGy (LD50/30) and time points from 1 to 12 wk post-TBI. Serum iron was elevated at 1 wk post-TBI, peaked at 2 wk post-TBI, and returned to non-irradiated control values by 4 wk post-TBI. A similar trend was seen for transferrin saturation, and both results correlated inversely with red blood cell number. Perls' Prussian Blue staining, used to detect iron deposition in heart tissue sections, showed myocardial iron was present as early as 2 wk following irradiation. Pretreatment of mice with the iron chelator deferiprone decreased tissue iron but not serum iron at 2 wk. Coronary artery endothelial cell density was significantly decreased as early as 2 wk vs. non-irradiated controls (P<0.05), and the reduced density persisted to 12 wk after irradiation. Deferiprone treatment of irradiated mice prevented the decrease in endothelial cell density at 2 and 4 wk post-TBI compared to irradiated, non-treated mice (P<0.03). Taken together, the results suggest excess tissue iron contributes to endothelial cell loss early following TBI and may be a significant event impacting the development of delayed effects of acute radiation exposure.
Collapse
Affiliation(s)
- Steven J Miller
- Department of Surgery, Indiana University School of Medicine, Indianapolis, IN 46202-5181
| | - Supriya Chittajallu
- Department of Surgery, Indiana University School of Medicine, Indianapolis, IN 46202-5181
| | - Carol Sampson
- Department of Medicine, Indiana University School of Medicine, Indianapolis, IN 46202-5181
| | - Alexa Fisher
- Department of Medicine, Indiana University School of Medicine, Indianapolis, IN 46202-5181
| | - Joseph L Unthank
- Department of Surgery, Indiana University School of Medicine, Indianapolis, IN 46202-5181
| | - Christie M Orschell
- Department of Medicine, Indiana University School of Medicine, Indianapolis, IN 46202-5181
| |
Collapse
|
9
|
Abstract
The effects of elevated levels of radiation contribute to the instability of pharmaceutical formulations in space compared to those on earth. Existing technologies are ineffective at maintaining the therapeutic efficacies of drugs in space. Thus, there is an urgent need to develop novel space-hardy formulations for preserving the stability and efficacy of drug formulations. This work aims to develop a novel approach for the protection of space pharmaceutical drug molecules from the radiation-induced damage to help extend or at least preserve their structural integrity and potency. To achieve this, free radical scavenging antioxidant, Trolox was conjugated on the surface of poly-lactic-co-glycolic acid (PLGA) nanoparticles for the protection of a candidate drug, melatonin that is used as a sleep aid medication in International Space Station (ISS). Melatonin-PLGA-PLL-Trolox nanoparticle as named as PolyRad was synthesized employing single oil in water (o/w) emulsion solvent evaporation method. PolyRad is spherical in shape and has an average diameter of ~600 nm with a low polydispersity index of 0.2. PolyRad and free melatonin (control) were irradiated by UV light after being exposed to a strong oxidant, hydrogen peroxide (H2O2). Bare melatonin lost ~80% of the active structure of the drug following irradiation with UV light or treatment with H2O2. In contrast, PolyRad protected >80% of the active structure of melatonin. The ability of PolyRad to protect melatonin structure was also carried out using 0, 1, 5 and 10 Gy gamma radiation. Gamma irradiation showed >98% active structures of melatonin encapsulated in PolyRads. Drug release and effectiveness of melatonin using PolyRad were evaluated on human umbilical vein endothelial cells (HUVEC) in vitro. Non-irradiated PolyRad demonstrated maximum drug release of ~70% after 72 h, while UV-irradiated and H2O2-treated PolyRad showed a maximum drug release of ~85%. Cytotoxicity of melatonin was carried out using both live/dead and MTT assays. Melatonin, non-radiated PolyRad and irradiated PolyRad inhibited the viability of HUVEC in a dose-dependent manner. Cell viability of melatonin, PolyRad alone without melatonin (PolyRad carrier control), non-radiated PolyRad, and irradiated PolyRad were ~98, 87, 75 and 70%, respectively at a concentration \documentclass[12pt]{minimal}
\usepackage{amsmath}
\usepackage{wasysym}
\usepackage{amsfonts}
\usepackage{amssymb}
\usepackage{amsbsy}
\usepackage{mathrsfs}
\usepackage{upgreek}
\setlength{\oddsidemargin}{-69pt}
\begin{document}$$ \sim $$\end{document}~ 0.01 \documentclass[12pt]{minimal}
\usepackage{amsmath}
\usepackage{wasysym}
\usepackage{amsfonts}
\usepackage{amssymb}
\usepackage{amsbsy}
\usepackage{mathrsfs}
\usepackage{upgreek}
\setlength{\oddsidemargin}{-69pt}
\begin{document}$${mg}/{ml}$$\end{document}mg/ml (\documentclass[12pt]{minimal}
\usepackage{amsmath}
\usepackage{wasysym}
\usepackage{amsfonts}
\usepackage{amssymb}
\usepackage{amsbsy}
\usepackage{mathrsfs}
\usepackage{upgreek}
\setlength{\oddsidemargin}{-69pt}
\begin{document}$$10\mu g/{ml}$$\end{document}10μg/ml). Taken together, PolyRad nanoparticle provides an attractive formulation platform for preventing damage to pharmaceutical drugs in potential space mission applications.
Collapse
|
10
|
Abdel-Magied N, Elkady AA, Abdel Fattah SM. Effect of Low-Level Laser on Some Metals Related to Redox State and Histological Alterations in the Liver and Kidney of Irradiated Rats. Biol Trace Elem Res 2020; 194:410-422. [PMID: 31313245 DOI: 10.1007/s12011-019-01779-3] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/28/2019] [Accepted: 06/11/2019] [Indexed: 12/19/2022]
Abstract
Low-level laser therapy (LLLT) is a type of medicine that uses laser light at low levels to activate the cellular chromophores and the initiation of cellular signaling. This study aimed to evaluate the photomodulation effect of LLL against ionizing radiation (IR)-induced metal disorders related to redox state in the liver and kidney of male rats. Rats were divided into 4 groups (control, LLLT, IR (7Gy), IR+LLLT). The results showed that LLLT 870 nm one time for 3 days post-irradiation revealed redistribution of iron (Fe), copper (Cu), zinc (Zn),calcium (Ca), magnesium (Mg), manganese (Mn), and selenium (Se) in the liver and kidney tissues. Moreover, LLLT attenuated the oxidative stress manifested by a marked reduction of hydrogen peroxide (H2O2), 4-hydroxynonenal (4-HNE), total oxidant state (TOS), and oxidative stress index (OSI) associated with a significant increase in total antioxidant status (TAS), glutathione (GSH) content, and glutathione peroxide (GPx), glutathione reductase (GRx), superoxide dismutase(SOD), and catalase (CAT) activities. Moreover, LLLT displayed an increase in glutathione-S-transferase (GSH-T) and ceruloplasmin activities and a decrease in the activity of gamma-glutamyl transferase (γ-GT). Besides, LLLT significantly attenuated the histological changes in the liver and kidney tissues, denoted by a reduction in the necrotic and degenerative changes of hepatocytes and an improvement in the corpuscles and tubules of the kidney. In conclusion, LLLT could be used as an adjuvant treatment post-exposure to radiation, while it is not beneficial to use it on the normal tissue.
Collapse
Affiliation(s)
- Nadia Abdel-Magied
- Radiation Biology Research Department, National Center for Radiation Research and Technology (NCRRT), Cairo, Egypt.
| | - Ahmed A Elkady
- Health Radiation Research Department, National Center for Radiation Research and Technology (NCRRT), Cairo, Egypt
| | - Salma M Abdel Fattah
- Drug Radiation Research Department, National Center for Radiation Research and Technology (NCRRT), Egyptian Atomic Energy Authority (EAEA), P.O. Box 29, Nasr City, Cairo, Egypt
| |
Collapse
|
11
|
Rittase WB, Muir JM, Slaven JE, Bouten RM, Bylicky MA, Wilkins WL, Day RM. Deposition of Iron in the Bone Marrow of a Murine Model of Hematopoietic Acute Radiation Syndrome. Exp Hematol 2020; 84:54-66. [PMID: 32240658 DOI: 10.1016/j.exphem.2020.03.004] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2020] [Revised: 03/20/2020] [Accepted: 03/21/2020] [Indexed: 01/02/2023]
Abstract
Exposure to high-dose total body irradiation (TBI) can result in hematopoietic acute radiation syndrome (H-ARS), characterized by leukopenia, anemia, and coagulopathy. Death from H-ARS occurs from hematopoietic insufficiency and opportunistic infections. Following radiation exposure, red blood cells (RBCs) undergo hemolysis from radiation-induced hemoglobin denaturation, causing the release of iron. Free iron can have multiple detrimental biological effects, including suppression of hematopoiesis. We investigated the impact of radiation-induced iron release on the bone marrow following TBI and the potential impact of the ACE inhibitor captopril, which improves survival from H-ARS. C57BL/6J mice were exposed to 7.9 Gy, 60Co irradiation, 0.6 Gy/min (LD70-90/30). RBCs and reticulocytes were significantly reduced within 7 days of TBI, with the RBC nadir at 14-21 days. Iron accumulation in the bone marrow correlated with the time course of RBC hemolysis, with an ∼10-fold increase in bone marrow iron at 14-21 days post-irradiation, primarily within the cytoplasm of macrophages. Iron accumulation in the bone marrow was associated with increased expression of genes for iron binding and transport proteins, including transferrin, transferrin receptor 1, ferroportin, and integrin αMβ2. Expression of the gene encoding Nrf2, a transcription factor activated by oxidative stress, also increased at 21 days post-irradiation. Captopril did not alter iron accumulation in the bone marrow or expression of iron storage genes, but did suppress Nrf2 expression. Our study suggests that following TBI, iron is deposited in tissues not normally associated with iron storage, which may be a secondary mechanism of radiation-induced tissue injury.
Collapse
Affiliation(s)
- W Bradley Rittase
- Department of Pharmacology and Molecular Therapeutics, Uniformed Services University of the Health Sciences, Bethesda, MD
| | - Jeannie M Muir
- Department of Pathology, Uniformed Services University of the Health Sciences, Bethesda, MD
| | - John E Slaven
- Department of Pharmacology and Molecular Therapeutics, Uniformed Services University of the Health Sciences, Bethesda, MD
| | - Roxane M Bouten
- Department of Pharmacology and Molecular Therapeutics, Uniformed Services University of the Health Sciences, Bethesda, MD
| | - Michelle A Bylicky
- Radiation Oncology Branch, National Cancer Institute, National Institutes of Health Bethesda, MD
| | - W Louis Wilkins
- Department of Laboratory Animal Research, Uniformed Services University of Health Sciences, Bethesda, MD
| | - Regina M Day
- Department of Pharmacology and Molecular Therapeutics, Uniformed Services University of the Health Sciences, Bethesda, MD.
| |
Collapse
|
12
|
Sun JL, Li S, Lu X, Feng JB, Cai TJ, Tian M, Liu QJ. Identification of the differentially expressed protein biomarkers in rat blood plasma in response to gamma irradiation. Int J Radiat Biol 2020; 96:748-758. [DOI: 10.1080/09553002.2020.1739775] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Jia-Li Sun
- China CDC Key Laboratory of Radiological Protection and Nuclear Emergency, National Institute for Radiological Protection, Chinese Center for Disease Control and Prevention, Beijing, P.R. China
- Beijing Tongzhou Center for Disease Control and Prevention, Beijing, P.R. China
| | - Shuang Li
- China CDC Key Laboratory of Radiological Protection and Nuclear Emergency, National Institute for Radiological Protection, Chinese Center for Disease Control and Prevention, Beijing, P.R. China
| | - Xue Lu
- China CDC Key Laboratory of Radiological Protection and Nuclear Emergency, National Institute for Radiological Protection, Chinese Center for Disease Control and Prevention, Beijing, P.R. China
| | - Jiang-Bin Feng
- China CDC Key Laboratory of Radiological Protection and Nuclear Emergency, National Institute for Radiological Protection, Chinese Center for Disease Control and Prevention, Beijing, P.R. China
| | - Tian-Jing Cai
- China CDC Key Laboratory of Radiological Protection and Nuclear Emergency, National Institute for Radiological Protection, Chinese Center for Disease Control and Prevention, Beijing, P.R. China
| | - Mei Tian
- China CDC Key Laboratory of Radiological Protection and Nuclear Emergency, National Institute for Radiological Protection, Chinese Center for Disease Control and Prevention, Beijing, P.R. China
| | - Qing-Jie Liu
- China CDC Key Laboratory of Radiological Protection and Nuclear Emergency, National Institute for Radiological Protection, Chinese Center for Disease Control and Prevention, Beijing, P.R. China
| |
Collapse
|
13
|
Unthank JL, Ortiz M, Trivedi H, Pelus LM, Sampson CH, Sellamuthu R, Fisher A, Chua HL, Plett A, Orschell CM, Cohen EP, Miller SJ. Cardiac and Renal Delayed Effects of Acute Radiation Exposure: Organ Differences in Vasculopathy, Inflammation, Senescence and Oxidative Balance. Radiat Res 2019; 191:383-397. [PMID: 30901530 DOI: 10.1667/rr15130.1] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
We have previously shown significant pathology in the heart and kidney of murine hematopoietic-acute radiation syndrome (H-ARS) survivors of 8.7-9.0 Gy total-body irradiation (TBI). The goal of this study was to determine temporal relationships in the development of vasculopathy and the progression of renal and cardiovascular delayed effects of acute radiation exposure (DEARE) at TBI doses less than 9 Gy and to elucidate the potential roles of senescence, inflammation and oxidative stress. Our results show significant loss of endothelial cells in coronary arteries by 4 months post-TBI (8.53 or 8.72 Gy of gamma radiation). This loss precedes renal dysfunction and interstitial fibrosis and progresses to abnormalities in the arterial media and adventitia and loss of coronary arterioles. Major differences in radiation-induced pathobiology exist between the heart and kidney in terms of vasculopathy progression and also in indices of inflammation, senescence and oxidative imbalance. The results of this work suggest a need for different medical countermeasures for multiple targets in different organs and at various times after acute radiation injury to prevent the progression of DEARE.
Collapse
Affiliation(s)
- Joseph L Unthank
- Department of Surgery, Indiana University School of Medicine, Indianapolis, Indiana.,Department of Cellular and Integrative Physiology, Indiana University School of Medicine, Indianapolis, Indiana
| | - Miguel Ortiz
- Department of Surgery, Indiana University School of Medicine, Indianapolis, Indiana
| | - Hina Trivedi
- Department of Medicine, University of Maryland School of Medicine, Baltimore, Maryland
| | - Louis M Pelus
- Department of Microbiology and Immunology, Indiana University School of Medicine, Indianapolis, Indiana
| | - Carol H Sampson
- Department of Medicine, Indiana University School of Medicine, Indianapolis, Indiana
| | - Rajendran Sellamuthu
- Department of Medicine, Indiana University School of Medicine, Indianapolis, Indiana
| | - Alexa Fisher
- Department of Medicine, Indiana University School of Medicine, Indianapolis, Indiana
| | - Hui Lin Chua
- Department of Medicine, Indiana University School of Medicine, Indianapolis, Indiana
| | - Artur Plett
- Department of Medicine, Indiana University School of Medicine, Indianapolis, Indiana
| | - Christie M Orschell
- Department of Cellular and Integrative Physiology, Indiana University School of Medicine, Indianapolis, Indiana.,Department of Medicine, Indiana University School of Medicine, Indianapolis, Indiana
| | - Eric P Cohen
- Department of Medicine, Indiana University School of Medicine, Indianapolis, Indiana
| | - Steven J Miller
- Department of Surgery, Indiana University School of Medicine, Indianapolis, Indiana.,Department of Cellular and Integrative Physiology, Indiana University School of Medicine, Indianapolis, Indiana
| |
Collapse
|
14
|
Zhang J, Zheng L, Wang Z, Pei H, Hu W, Nie J, Shang P, Li B, Hei TK, Zhou G. Lowering iron level protects against bone loss in focally irradiated and contralateral femurs through distinct mechanisms. Bone 2019; 120:50-60. [PMID: 30304704 DOI: 10.1016/j.bone.2018.10.005] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/04/2018] [Revised: 09/21/2018] [Accepted: 10/06/2018] [Indexed: 12/20/2022]
Abstract
Radiation therapy leads to increased risk of late-onset fragility and bone fracture due to the loss of bone mass. On the other hand, iron overloading causes osteoporosis by enhancing bone resorption. It has been shown that total body irradiation increases iron level, but whether the systemic bone loss is related to the changes in iron level and hepcidin regulation following bone irradiation remains unknown. To investigate the potential link between them, we first created an animal model of radiation-induced systemic bone loss by targeting the mid-shaft femur with a single 2 Gy dose of X-rays. We found that mid-shaft femur focal irradiation led to structural deterioration in the distal region of the trabecular bone with increased osteoclasts surface and expressions of bone resorption markers in both irradiated and contralateral femurs relative to non-irradiated controls. Following irradiation, reduced hepcidin activity of the liver contributed to elevated iron levels in the serum and liver. By injecting hepcidin or deferoxamine (an iron chelator) to reduce iron level, deterioration of trabecular bone microarchitecture in irradiated mice was abrogated. The ability of iron chelation to inhibit radiation-induced osteoclast differentiation was observed in vitro as well. We further showed that ionizing radiation (IR) directly stimulated osteoclast differentiation and bone resorption in bone marrow cells isolated not from contralateral femurs but from directly irradiated femurs. These results suggest that increased iron levels after focal radiation is at least one of the main reasons for systemic bone loss. Furthermore, bone loss in directly irradiated bones is not only due to the elevated iron level, but also from increased osteoclast differentiation. In contrast, the bone loss in the contralateral femurs is mainly due to the elevated iron level induced by IR alone. These novel findings provide proof-of-principle evidence for the use of iron chelation or hepcidin as therapeutic treatments for IR-induced osteoporosis.
Collapse
Affiliation(s)
- Jian Zhang
- State Key Laboratory of Radiation Medicine and Protection, School of Radiation Medicine and Protection, Medical College of Soochow University, Suzhou, China; Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Suzhou, China
| | - Lijun Zheng
- State Key Laboratory of Radiation Medicine and Protection, School of Radiation Medicine and Protection, Medical College of Soochow University, Suzhou, China; Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Suzhou, China
| | - Ziyang Wang
- State Key Laboratory of Radiation Medicine and Protection, School of Radiation Medicine and Protection, Medical College of Soochow University, Suzhou, China; Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Suzhou, China
| | - Hailong Pei
- State Key Laboratory of Radiation Medicine and Protection, School of Radiation Medicine and Protection, Medical College of Soochow University, Suzhou, China; Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Suzhou, China
| | - Wentao Hu
- State Key Laboratory of Radiation Medicine and Protection, School of Radiation Medicine and Protection, Medical College of Soochow University, Suzhou, China; Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Suzhou, China
| | - Jing Nie
- State Key Laboratory of Radiation Medicine and Protection, School of Radiation Medicine and Protection, Medical College of Soochow University, Suzhou, China; Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Suzhou, China
| | - Peng Shang
- Key Laboratory for Space Bioscience and Biotechnology, Institute of Special Environmental Biophysics, School of Life Sciences, Northwestern Polytechnical University, Xi'an, China; Research & Development Institute in Shenzhen, Northwestern Polytechnical University, Shenzhen, China
| | - Bingyan Li
- State Key Laboratory of Radiation Medicine and Protection, School of Radiation Medicine and Protection, Medical College of Soochow University, Suzhou, China; Department of Nutrition and Food Hygiene, School of Public Health, Medical College of Soochow University, Suzhou, China
| | - Tom K Hei
- State Key Laboratory of Radiation Medicine and Protection, School of Radiation Medicine and Protection, Medical College of Soochow University, Suzhou, China; Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Suzhou, China; Center for Radiological Research, College of Physician and Surgeons, Columbia University, New York, USA.
| | - Guangming Zhou
- State Key Laboratory of Radiation Medicine and Protection, School of Radiation Medicine and Protection, Medical College of Soochow University, Suzhou, China; Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Suzhou, China.
| |
Collapse
|
15
|
Zhang J, Qiu X, Xi K, Hu W, Pei H, Nie J, Wang Z, Ding J, Shang P, Li B, Zhou G. Therapeutic ionizing radiation induced bone loss: a review of in vivo and in vitro findings. Connect Tissue Res 2018; 59:509-522. [PMID: 29448860 DOI: 10.1080/03008207.2018.1439482] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Radiation therapy is one of the routine treatment modalities for cancer patients. Ionizing radiation (IR) can induce bone loss, and consequently increases the risk of fractures with delayed and nonunion of the bone in the cancer patients who receive radiotherapy. The orchestrated bone remodeling can be disrupted due to the affected behaviors of bone cells, including bone mesenchymal stem cells (BMSCs), osteoblasts and osteoclasts. BMSCs and osteoblasts are relatively radioresistant compared with osteoclasts and its progenitors. Owing to different radiosensitivities of bone cells, unbalanced bone remodeling caused by IR is closely associated with the dose absorbed. For doses less than 2 Gy, osteoclastogenesis and adipogenesis by BMSCs are enhanced, while there are limited effects on osteoblasts. High doses (>10 Gy) induce disrupted architecture of bone, which is usually related to decreased osteogenic potential. In this review, studies elucidating the biological effects of IR on bone cells (BMSCs, osteoblasts and osteoclasts) are summarized. Several potential preventions and therapies are also proposed.
Collapse
Affiliation(s)
- Jian Zhang
- a State Key Laboratory of Radiation Medicine and Protection, School of Radiation Medicine and Protection , Soochow University , Suzhou , China.,b Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions , Suzhou , China
| | - Xinyu Qiu
- a State Key Laboratory of Radiation Medicine and Protection, School of Radiation Medicine and Protection , Soochow University , Suzhou , China.,b Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions , Suzhou , China
| | - Kedi Xi
- a State Key Laboratory of Radiation Medicine and Protection, School of Radiation Medicine and Protection , Soochow University , Suzhou , China.,b Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions , Suzhou , China
| | - Wentao Hu
- a State Key Laboratory of Radiation Medicine and Protection, School of Radiation Medicine and Protection , Soochow University , Suzhou , China.,b Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions , Suzhou , China
| | - Hailong Pei
- a State Key Laboratory of Radiation Medicine and Protection, School of Radiation Medicine and Protection , Soochow University , Suzhou , China.,b Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions , Suzhou , China
| | - Jing Nie
- a State Key Laboratory of Radiation Medicine and Protection, School of Radiation Medicine and Protection , Soochow University , Suzhou , China.,b Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions , Suzhou , China
| | - Ziyang Wang
- a State Key Laboratory of Radiation Medicine and Protection, School of Radiation Medicine and Protection , Soochow University , Suzhou , China.,b Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions , Suzhou , China
| | - Jiahan Ding
- a State Key Laboratory of Radiation Medicine and Protection, School of Radiation Medicine and Protection , Soochow University , Suzhou , China.,b Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions , Suzhou , China
| | - Peng Shang
- a State Key Laboratory of Radiation Medicine and Protection, School of Radiation Medicine and Protection , Soochow University , Suzhou , China.,b Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions , Suzhou , China.,c Key Laboratory for Space Bioscience and Biotechnology, Institute of Special Environmental Biophysics, School of Life Sciences , Northwestern Polytechnical University , Xi'an , China.,d Research & Development Institute in Shenzhen , Northwestern Polytechnical University, Fictitious College Garden , Shenzhen , China
| | - Bingyan Li
- a State Key Laboratory of Radiation Medicine and Protection, School of Radiation Medicine and Protection , Soochow University , Suzhou , China
| | - Guangming Zhou
- a State Key Laboratory of Radiation Medicine and Protection, School of Radiation Medicine and Protection , Soochow University , Suzhou , China.,b Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions , Suzhou , China
| |
Collapse
|
16
|
Yang J, Zhang G, Dong D, Shang P. Effects of Iron Overload and Oxidative Damage on the Musculoskeletal System in the Space Environment: Data from Spaceflights and Ground-Based Simulation Models. Int J Mol Sci 2018; 19:E2608. [PMID: 30177626 PMCID: PMC6163331 DOI: 10.3390/ijms19092608] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2018] [Revised: 08/29/2018] [Accepted: 09/01/2018] [Indexed: 12/15/2022] Open
Abstract
The space environment chiefly includes microgravity and radiation, which seriously threatens the health of astronauts. Bone loss and muscle atrophy are the two most significant changes in mammals after long-term residency in space. In this review, we summarized current understanding of the effects of microgravity and radiation on the musculoskeletal system and discussed the corresponding mechanisms that are related to iron overload and oxidative damage. Furthermore, we enumerated some countermeasures that have a therapeutic potential for bone loss and muscle atrophy through using iron chelators and antioxidants. Future studies for better understanding the mechanism of iron and redox homeostasis imbalance induced by the space environment and developing the countermeasures against iron overload and oxidative damage consequently may facilitate human to travel more safely in space.
Collapse
Affiliation(s)
- Jiancheng Yang
- School of Life Sciences, Northwestern Polytechnical University, Xi'an 710072, China.
- Key Laboratory for Space Bioscience and Biotechnology, Institute of Special Environment Biophysics, Northwestern Polytechnical University, Xi'an 710072, China.
| | - Gejing Zhang
- School of Life Sciences, Northwestern Polytechnical University, Xi'an 710072, China.
- Key Laboratory for Space Bioscience and Biotechnology, Institute of Special Environment Biophysics, Northwestern Polytechnical University, Xi'an 710072, China.
| | - Dandan Dong
- School of Life Sciences, Northwestern Polytechnical University, Xi'an 710072, China.
- Key Laboratory for Space Bioscience and Biotechnology, Institute of Special Environment Biophysics, Northwestern Polytechnical University, Xi'an 710072, China.
| | - Peng Shang
- Key Laboratory for Space Bioscience and Biotechnology, Institute of Special Environment Biophysics, Northwestern Polytechnical University, Xi'an 710072, China.
- Research & Development Institute in Shenzhen, Northwestern Polytechnical University, Shenzhen 518057, China.
| |
Collapse
|
17
|
Radioprotective effect of Date syrup on radiation- induced damage in Rats. Sci Rep 2018; 8:7423. [PMID: 29743497 PMCID: PMC5943437 DOI: 10.1038/s41598-018-25586-3] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2017] [Accepted: 03/19/2018] [Indexed: 01/01/2023] Open
Abstract
Ionizing radiation has cytotoxic and genotoxic effects caused mainly by the oxidative damage induced by free radical release. The need for radioprotectives is increasing to protect normal tissues during radiotherapy. In the present study, we investigated the radioprotective effect of Date syrup in rats subjected to whole body radiation at 6 Gy through biochemical, molecular and histopathological analysis. Significant elevations were recorded in the activities of serum ALT, AST, ALP and LDH and in the levels of all lipid profiles parameters, while the level of HDL-C was reduced. The concentration of liver MDA was elevated with depletion of hepatic glutathione (GSH) and catalase. DNA damage was evidenced by increased DNA strand breakage and DNA-protein crosslinks. Significant elevations were observed in the expression of liver TNF-α and serum activity of matrix metalloproteinase (MMP-9). Pretreatment of rats with Date syrup ameliorated the tissue damage induced by radiation as evidenced by the improvement of liver function, antioxidant status and reduction of DNA damage. Besides, liver TNF-α expression and serum MMP-9 activity were reduced. In conclusion, Date syrup could alleviate the toxic effects of ionizing radiation and thus is useful as a radioprotective in radiotherapy regimen.
Collapse
|