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Sazgary L, Samara ET, Stüssi A, Saltybaeva N, Guckenberger M, Ruschitzka F, Wolber T, Molitor N, Hofer D, Guan F, Suna G, Hermes-Laufer J, Breitenstein A, Brunckhorst CB, Duru F, Saguner AM. The Impact of Clinical Radiation Audits on Patient Radiation Exposure in Cardiac Implantable Electronic Device Procedures. Heart Rhythm 2024:S1547-5271(24)02387-7. [PMID: 38636928 DOI: 10.1016/j.hrthm.2024.04.060] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/10/2024] [Revised: 04/11/2024] [Accepted: 04/12/2024] [Indexed: 04/20/2024]
Affiliation(s)
- Lorraine Sazgary
- Department of Cardiology, University Hospital Zurich, Zurich, Switzerland
| | | | - Anja Stüssi
- Radiation Protection Unit, University Hospital Zurich, Zurich, Switzerland
| | - Natalia Saltybaeva
- Radiation Protection Unit, University Hospital Zurich, Zurich, Switzerland
| | | | - Frank Ruschitzka
- Department of Cardiology, University Hospital Zurich, Zurich, Switzerland
| | - Thomas Wolber
- Department of Cardiology, University Hospital Zurich, Zurich, Switzerland
| | - Nadine Molitor
- Department of Cardiology, University Hospital Zurich, Zurich, Switzerland
| | - Daniel Hofer
- Department of Cardiology, University Hospital Zurich, Zurich, Switzerland
| | - Fu Guan
- Department of Cardiology, University Hospital Zurich, Zurich, Switzerland
| | - Gonca Suna
- Department of Cardiology, University Hospital Zurich, Zurich, Switzerland
| | | | | | | | - Firat Duru
- Department of Cardiology, University Hospital Zurich, Zurich, Switzerland; Center for Translational and Experimental Cardiology (CTEC), University of Zurich, Zurich, Switzerland; Center for Integrative Human Physiology, University of Zurich, Zurich, Switzerland
| | - Ardan M Saguner
- Department of Cardiology, University Hospital Zurich, Zurich, Switzerland; Center for Translational and Experimental Cardiology (CTEC), University of Zurich, Zurich, Switzerland.
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2
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Geng F, Zhong L, Yang T, Chen J, Yang P, Jiang F, Yan T, Song B, Yu Z, Yu D, Zhang J, Cao J, Zhang S. A Frog Skin-Derived Peptide Targeting SCD1 Exerts Radioprotective Effects Against Skin Injury by Inhibiting STING-Mediated Inflammation. Adv Sci (Weinh) 2024:e2306253. [PMID: 38582510 DOI: 10.1002/advs.202306253] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Revised: 03/22/2024] [Indexed: 04/08/2024]
Abstract
The extensive application of nuclear technology has increased the potential of uncontrolled radiation exposure to the public. Since skin is the largest organ, radiation-induced skin injury remains a serious medical concern. Organisms evolutionally develop distinct strategies to protect against environment insults and the related research may bring novel insights into therapeutics development. Here, 26 increased peptides are identified in skin tissues of frogs (Pelophylax nigromaculatus) exposed to electron beams, among which four promoted the wound healing of irradiated skin in rats. Specifically, radiation-induced frog skin peptide-2 (RIFSP-2), from histone proteolysis exerted membrane permeability property, maintained cellular homeostasis, and reduced pyroptosis of irradiated cells with decreased TBK1 phosphorylation. Subsequently, stearyl-CoA desaturase 1 (SCD1) is identified, a critical enzyme in biogenesis of monounsaturated fatty acids (MUFAs) as a direct target of RIFSP-2 based on streptavidin-biotin system. The lipidomic analysis further assured the restrain of MUFAs biogenesis by RIFSP-2 following radiation. Moreover, the decreased MUFA limited radiation-induced and STING-mediated inflammation response. In addition, genetic depletion or pharmacological inhibition of STING counteracted the decreased pyroptosis by RIFSP-2 and retarded tissue repair process. Altogether, RIFSP-2 restrains radiation-induced activation of SCD1-MUFA-STING axis. Thus, the stress-induced amphibian peptides can be a bountiful source of novel radiation mitigators.
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Affiliation(s)
- Fenghao Geng
- Laboratory of Radiation Medicine, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu, 610041, China
- Laboratory of Radiation Medicine, West China Second University Hospital, Sichuan University, Chengdu, 610041, China
- Radiation Medicine Department of Institute of Preventive Medicine, Fourth Military Medical University, Xi'an, 710032, China
| | - Li Zhong
- School of Radiation Medicine and Protection, State Key Laboratory of Radiation Medicine, Soochow University, Suzhou, 215123, China
| | - Tingyi Yang
- Laboratory of Radiation Medicine, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu, 610041, China
| | - Jianhui Chen
- Laboratory of Radiation Medicine, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu, 610041, China
| | - Ping Yang
- Laboratory of Radiation Medicine, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu, 610041, China
| | - Fengdi Jiang
- Laboratory of Radiation Medicine, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu, 610041, China
| | - Tao Yan
- Laboratory of Radiation Medicine, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu, 610041, China
| | - Bin Song
- Laboratory of Radiation Medicine, West China Second University Hospital, Sichuan University, Chengdu, 610041, China
| | - Zuxiang Yu
- Laboratory of Radiation Medicine, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu, 610041, China
| | - Daojiang Yu
- The Second Affiliated Hospital of Chengdu Medical College, China National Nuclear Corporation 416 Hospital, Chengdu, 610051, China
| | - Jie Zhang
- Radiation Medicine Department of Institute of Preventive Medicine, Fourth Military Medical University, Xi'an, 710032, China
| | - Jianping Cao
- School of Radiation Medicine and Protection, State Key Laboratory of Radiation Medicine, Soochow University, Suzhou, 215123, China
| | - Shuyu Zhang
- Laboratory of Radiation Medicine, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu, 610041, China
- Laboratory of Radiation Medicine, West China Second University Hospital, Sichuan University, Chengdu, 610041, China
- The Second Affiliated Hospital of Chengdu Medical College, China National Nuclear Corporation 416 Hospital, Chengdu, 610051, China
- NHC Key Laboratory of Nuclear Technology Medical Transformation (Mianyang Central Hospital), Mianyang, 621099, China
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3
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Li X, Liu H, Gao W, Yang Q, Li X, Zhou X, Wang L, Lu Z, Liu J, Luo A, Chen C, Liu Z, Zhao Y. Octadecyl Gallate and Lipid-Modified MnSe 2 Nanoparticles Enhance Radiosensitivity in Esophageal Squamous Cell Carcinoma and Promote Radioprotection in Normal Tissues. Adv Mater 2024:e2311291. [PMID: 38408154 DOI: 10.1002/adma.202311291] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/27/2023] [Revised: 02/17/2024] [Indexed: 02/28/2024]
Abstract
Radiotherapy, a widely used therapeutic strategy for esophageal squamous cell carcinoma (ESCC), is always limited by radioresistance of tumor tissues and side-effects on normal tissues. Herein, a signature based on four core genes of cyclic GMP-AMP synthase-stimulator of interferon genes (cGAS-STING) pathway, is developed to predict prognosis and assess immune cell infiltration, indicating that the cGAS-STING pathway and radiotherapy efficacy are closely intertwined in ESCC. A novel lipid-modified manganese diselenide nanoparticle (MnSe2 -lipid) with extraordinarily uniform sphere morphology and tumor microenvironment (TME) responsiveness is developed to simultaneously overcome radioresistance and reduce side-effects of radiation. The uniform MnSe2 encapsulated lipid effectively achieves tumor accumulation. Octadecyl gallate on surface of MnSe2 forming pH-responsive metal-phenolic covalent realizes rapid degradation in TME. The released Mn2+ promotes radiosensitivity by generating reactive oxygen species induced by Fenton-like reaction and activating cGAS-STING pathway. Spontaneously, selenium strengthens immune response by promoting secretion of cytokines and increasing white blood cells, and performs antioxidant activity to reduce side-effects of radiotherapy. Overall, this multifunctional remedy which is responsive to TME is capable of providing radiosensitivity by cGAS-STING pathway-mediated immunostimulation and chemodynamic therapy, and radioprotection of normal tissues, is highlighted here to optimize ESCC treatment.
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Affiliation(s)
- Xinyue Li
- State Key Lab of Molecular Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100021, China
| | - He Liu
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety and CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology of China, Beijing, 100190, China
| | - Wenyan Gao
- State Key Lab of Molecular Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100021, China
| | - Qi Yang
- State Key Lab of Molecular Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100021, China
| | - Xin Li
- State Key Lab of Molecular Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100021, China
| | - Xuantong Zhou
- State Key Lab of Molecular Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100021, China
| | - Longwei Wang
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety and CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology of China, Beijing, 100190, China
| | - Zhihao Lu
- Department of Gastrointestinal Oncology, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Peking University Cancer Hospital and Institute, Beijing, 100142, China
| | - Jing Liu
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety and CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology of China, Beijing, 100190, China
| | - Aiping Luo
- State Key Lab of Molecular Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100021, China
| | - Chunying Chen
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety and CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology of China, Beijing, 100190, China
| | - Zhihua Liu
- State Key Lab of Molecular Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100021, China
| | - YuLiang Zhao
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety and CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology of China, Beijing, 100190, China
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Maines LW, Keller SN, Smith RA, Green CL, Smith CD. The Sphingolipid-Modulating Drug Opaganib Protects against Radiation-Induced Lung Inflammation and Fibrosis: Potential Uses as a Medical Countermeasure and in Cancer Radiotherapy. Int J Mol Sci 2024; 25:2322. [PMID: 38396999 PMCID: PMC10888706 DOI: 10.3390/ijms25042322] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2023] [Revised: 02/03/2024] [Accepted: 02/12/2024] [Indexed: 02/25/2024] Open
Abstract
Fibrosis is a chronic pathology resulting from excessive deposition of extracellular matrix components that leads to the loss of tissue function. Pulmonary fibrosis can follow a variety of diverse insults including ischemia, respiratory infection, or exposure to ionizing radiation. Consequently, treatments that attenuate the development of debilitating fibrosis are in desperate need across a range of conditions. Sphingolipid metabolism is a critical regulator of cell proliferation, apoptosis, autophagy, and pathologic inflammation, processes that are all involved in fibrosis. Opaganib (formerly ABC294640) is the first-in-class investigational drug targeting sphingolipid metabolism for the treatment of cancer and inflammatory diseases. Opaganib inhibits key enzymes in sphingolipid metabolism, including sphingosine kinase-2 and dihydroceramide desaturase, thereby reducing inflammation and promoting autophagy. Herein, we demonstrate in mouse models of lung damage following exposure to ionizing radiation that opaganib significantly improved long-term survival associated with reduced lung fibrosis, suppression of granulocyte infiltration, and reduced expression of IL-6 and TNFα at 180 days after radiation. These data further demonstrate that sphingolipid metabolism is a critical regulator of fibrogenesis, and specifically show that opaganib suppresses radiation-induced pulmonary inflammation and fibrosis. Because opaganib has demonstrated an excellent safety profile during clinical testing in other diseases (cancer and COVID-19), the present studies support additional clinical trials with this drug in patients at risk for pulmonary fibrosis.
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Affiliation(s)
| | | | | | | | - Charles D. Smith
- Apogee Biotechnology Corporation, 1214 Research Blvd, Suite 2015, Hummelstown, PA 17036, USA
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5
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Boretti A. Evidence for the use of curcumin in radioprotection and radiosensitization. Phytother Res 2024; 38:464-469. [PMID: 36897074 DOI: 10.1002/ptr.7803] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2023] [Revised: 02/21/2023] [Accepted: 02/24/2023] [Indexed: 03/11/2023]
Abstract
Curcumin has antineoplastic properties and is considered a chemotherapeutic and chemopreventive agent. Curcumin may be associated with radiation therapy (RT) as a radiosensitizer for cancer cells and a radioprotector for normal cells. In principle, it may result in a reduction of RT dosage for the same therapeutic effect on cancer cells, and further reduced damage to normal cells. Though the overall level of evidence is modest, limited to in vivo and in vitro experiences and practically no clinical trials, as the risks of adverse effects are extremely low, it is reasonable to promote the general supplementation with curcumin during RT targeting the reduction of side effects through anti-inflammatory mechanisms.
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Affandi T, Haas A, Ohm AM, Wright GM, Black JC, Reyland ME. PKCδ Regulates Chromatin Remodeling and DNA Repair through SIRT6. Mol Cancer Res 2024; 22:181-196. [PMID: 37889141 PMCID: PMC10872792 DOI: 10.1158/1541-7786.mcr-23-0493] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2023] [Revised: 09/07/2023] [Accepted: 10/25/2023] [Indexed: 10/28/2023]
Abstract
Irradiation (IR) is a highly effective cancer therapy; however, IR damage to tumor-adjacent healthy tissues can result in significant comorbidities and potentially limit the course of therapy. We have previously shown that protein kinase C delta (PKCδ) is required for IR-induced apoptosis and that inhibition of PKCδ activity provides radioprotection in vivo. Here we show that PKCδ regulates histone modification, chromatin accessibility, and double-stranded break (DSB) repair through a mechanism that requires Sirtuin 6 (SIRT6). Overexpression of PKCδ promotes genomic instability and increases DNA damage and apoptosis. Conversely, depletion of PKCδ increases DNA repair via nonhomologous end joining (NHEJ) and homologous recombination (HR) as evidenced by increased formation of DNA damage foci, increased expression of DNA repair proteins, and increased repair of NHEJ and HR fluorescent reporter constructs. Nuclease sensitivity indicates that PKCδ depletion is associated with more open chromatin, while overexpression of PKCδ reduces chromatin accessibility. Epiproteome analysis reveals increased chromatin associated H3K36me2 in PKCδ-depleted cells which is accompanied by chromatin disassociation of KDM2A. We identify SIRT6 as a downstream mediator of PKCδ. PKCδ-depleted cells have increased SIRT6 expression, and depletion of SIRT6 reverses changes in chromatin accessibility, histone modification and DSB repair in PKCδ-depleted cells. Furthermore, depletion of SIRT6 reverses radioprotection in PKCδ-depleted cells. Our studies describe a novel pathway whereby PKCδ orchestrates SIRT6-dependent changes in chromatin accessibility to regulate DNA repair, and define a mechanism for regulation of radiation-induced apoptosis by PKCδ. IMPLICATIONS PKCδ controls sensitivity to irradiation by regulating DNA repair.
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Affiliation(s)
- Trisiani Affandi
- Department of Craniofacial Biology, School of Dental Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA
| | - Ami Haas
- Department of Craniofacial Biology, School of Dental Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA
| | - Angela M. Ohm
- Department of Craniofacial Biology, School of Dental Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA
| | - Gregory M. Wright
- Department of Pharmacology, School of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA
| | - Joshua C. Black
- Department of Pharmacology, School of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA
| | - Mary E. Reyland
- Department of Craniofacial Biology, School of Dental Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA
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Zhou W, Zhao Z, Lin A, Yang JZ, Xu J, Wilder-Romans K, Yang A, Li J, Solanki S, Speth JM, Walker N, Scott AJ, Wang L, Wen B, Andren A, Zhang L, Kothari AU, Yao Y, Peterson ER, Korimerla N, Werner CK, Ullrich A, Liang J, Jacobson J, Palavalasa S, O’Brien AM, Elaimy AL, Ferris SP, Zhao SG, Sarkaria JN, Győrffy B, Zhang S, Al-Holou WN, Umemura Y, Morgan MA, Lawrence TS, Lyssiotis CA, Peters-Golden M, Shah YM, Wahl DR. GTP Signaling Links Metabolism, DNA Repair, and Responses to Genotoxic Stress. Cancer Discov 2024; 14:158-175. [PMID: 37902550 PMCID: PMC10872631 DOI: 10.1158/2159-8290.cd-23-0437] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2023] [Revised: 09/07/2023] [Accepted: 10/19/2023] [Indexed: 10/31/2023]
Abstract
How cell metabolism regulates DNA repair is incompletely understood. Here, we define a GTP-mediated signaling cascade that links metabolism to DNA repair and has significant therapeutic implications. GTP, but not other nucleotides, regulates the activity of Rac1, a guanine nucleotide-binding protein, which promotes the dephosphorylation of serine 323 on Abl-interactor 1 (Abi-1) by protein phosphatase 5 (PP5). Dephosphorylated Abi-1, a protein previously not known to activate DNA repair, promotes nonhomologous end joining. In patients and mouse models of glioblastoma, Rac1 and dephosphorylated Abi-1 mediate DNA repair and resistance to standard-of-care genotoxic treatments. The GTP-Rac1-PP5-Abi-1 signaling axis is not limited to brain cancer, as GTP supplementation promotes DNA repair and Abi-1-S323 dephosphorylation in nonmalignant cells and protects mouse tissues from genotoxic insult. This unexpected ability of GTP to regulate DNA repair independently of deoxynucleotide pools has important implications for normal physiology and cancer treatment. SIGNIFICANCE A newly described GTP-dependent signaling axis is an unexpected link between nucleotide metabolism and DNA repair. Disrupting this pathway can overcome cancer resistance to genotoxic therapy while augmenting it can mitigate genotoxic injury of normal tissues. This article is featured in Selected Articles from This Issue, p. 5.
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Affiliation(s)
- Weihua Zhou
- Department of Radiation Oncology, University of Michigan, Ann Arbor, MI, USA
| | - Zitong Zhao
- Department of Radiation Oncology, University of Michigan, Ann Arbor, MI, USA
- Department of Oncology, the Second Affiliated Hospital of Xi’an Jiaotong University, Xi’an, Shan Xi, PR China
| | - Angelica Lin
- Department of Radiation Oncology, University of Michigan, Ann Arbor, MI, USA
| | - John Z Yang
- Department of Radiation Oncology, University of Michigan, Ann Arbor, MI, USA
| | - Jie Xu
- Department of Radiation Oncology, University of Michigan, Ann Arbor, MI, USA
| | - Kari Wilder-Romans
- Department of Radiation Oncology, University of Michigan, Ann Arbor, MI, USA
| | - Annabel Yang
- Department of Radiation Oncology, University of Michigan, Ann Arbor, MI, USA
| | - Jing Li
- Cell Signaling Technology, Inc., Danvers, MA, USA
| | - Sumeet Solanki
- Department of Molecular & Integrative Physiology, University of Michigan, Ann Arbor, MI, USA
| | - Jennifer M Speth
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, University of Michigan, Ann Arbor, MI, USA
| | - Natalie Walker
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, University of Michigan, Ann Arbor, MI, USA
| | - Andrew J Scott
- Department of Radiation Oncology, University of Michigan, Ann Arbor, MI, USA
- Rogel Cancer Center, University of Michigan Medical School, Ann Arbor, MI, USA
| | - Lu Wang
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Michigan, Ann Arbor, MI, USA
| | - Bo Wen
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Michigan, Ann Arbor, MI, USA
| | - Anthony Andren
- Department of Molecular & Integrative Physiology, University of Michigan, Ann Arbor, MI, USA
| | - Li Zhang
- Department of Molecular & Integrative Physiology, University of Michigan, Ann Arbor, MI, USA
| | - Ayesha U Kothari
- Department of Radiation Oncology, University of Michigan, Ann Arbor, MI, USA
| | - Yangyang Yao
- Department of Radiation Oncology, University of Michigan, Ann Arbor, MI, USA
- Department of Oncology, the First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, PR China
| | - Erik R Peterson
- Department of Radiation Oncology, University of Michigan, Ann Arbor, MI, USA
| | - Navyateja Korimerla
- Department of Radiation Oncology, University of Michigan, Ann Arbor, MI, USA
| | - Christian K Werner
- Department of Radiation Oncology, University of Michigan, Ann Arbor, MI, USA
| | - Alexander Ullrich
- Department of Radiation Oncology, University of Michigan, Ann Arbor, MI, USA
| | - Jessica Liang
- Department of Radiation Oncology, University of Michigan, Ann Arbor, MI, USA
| | - Janna Jacobson
- Department of Radiation Oncology, University of Michigan, Ann Arbor, MI, USA
| | - Sravya Palavalasa
- Department of Radiation Oncology, University of Michigan, Ann Arbor, MI, USA
| | - Alexandra M O’Brien
- Department of Radiation Oncology, University of Michigan, Ann Arbor, MI, USA
| | - Ameer L Elaimy
- Department of Radiation Oncology, University of Michigan, Ann Arbor, MI, USA
| | - Sean P Ferris
- Department of Pathology, Division of Neuropathology, University of Michigan, Ann Arbor, MI, USA
| | - Shuang G Zhao
- Department of Human Oncology, University of Wisconsin Madison, WI, USA
| | | | - Balázs Győrffy
- Department of Bioinformatics, Semmelweis University, Budapest, Hungary; and TTK Cancer Biomarker Research Group, Institute of Enzymology, Budapest, Hungary
| | - Shuqun Zhang
- Department of Oncology, the Second Affiliated Hospital of Xi’an Jiaotong University, Xi’an, Shan Xi, PR China
| | - Wajd N Al-Holou
- Department of Neurosurgery, University of Michigan, Ann Arbor, MI, United States
| | - Yoshie Umemura
- Department of Neurology, University of Michigan, Ann Arbor, MI, United States
| | - Meredith A Morgan
- Department of Radiation Oncology, University of Michigan, Ann Arbor, MI, USA
| | - Theodore S Lawrence
- Department of Radiation Oncology, University of Michigan, Ann Arbor, MI, USA
| | - Costas A Lyssiotis
- Department of Molecular & Integrative Physiology, University of Michigan, Ann Arbor, MI, USA
- Department of Molecular and Integrative Physiology and Department of Internal Medicine, Division of Gastroenterology and Hepatology, University of Michigan, Ann Arbor, MI, USA
- Rogel Cancer Center, University of Michigan Medical School, Ann Arbor, MI, USA
| | - Marc Peters-Golden
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, University of Michigan, Ann Arbor, MI, USA
| | - Yatrik M Shah
- Department of Molecular & Integrative Physiology, University of Michigan, Ann Arbor, MI, USA
- Rogel Cancer Center, University of Michigan Medical School, Ann Arbor, MI, USA
| | - Daniel R Wahl
- Department of Radiation Oncology, University of Michigan, Ann Arbor, MI, USA
- Rogel Cancer Center, University of Michigan Medical School, Ann Arbor, MI, USA
- Lead contact
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Socol Y, Richardson A, Garali-Zineddine I, Grison S, Vares G, Klokov D. Artificial intelligence in biology and medicine, and radioprotection research: perspectives from Jerusalem. Front Artif Intell 2024; 6:1291136. [PMID: 38282906 PMCID: PMC10812117 DOI: 10.3389/frai.2023.1291136] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2023] [Accepted: 12/15/2023] [Indexed: 01/30/2024] Open
Abstract
While AI is widely used in biomedical research and medical practice, its use is constrained to few specific practical areas, e.g., radiomics. Participants of the workshop on "Artificial Intelligence in Biology and Medicine" (Jerusalem, Feb 14-15, 2023), both researchers and practitioners, aimed to build a holistic picture by exploring AI advancements, challenges and perspectives, as well as to suggest new fields for AI applications. Presentations showcased the potential of large language models (LLMs) in generating molecular structures, predicting protein-ligand interactions, and promoting democratization of AI development. Ethical concerns in medical decision making were also addressed. In biological applications, AI integration of multi-omics and clinical data elucidated the health relevant effects of low doses of ionizing radiation. Bayesian latent modeling identified statistical associations between unobserved variables. Medical applications highlighted liquid biopsy methods for non-invasive diagnostics, routine laboratory tests to identify overlooked illnesses, and AI's role in oral and maxillofacial imaging. Explainable AI and diverse image processing tools improved diagnostics, while text classification detected anorexic behavior in blog posts. The workshop fostered knowledge sharing, discussions, and emphasized the need for further AI development in radioprotection research in support of emerging public health issues. The organizers plan to continue the initiative as an annual event, promoting collaboration and addressing issues and perspectives in AI applications with a focus on low-dose radioprotection research. Researchers involved in radioprotection research and experts in relevant public policy domains are invited to explore the utility of AI in low-dose radiation research at the next workshop.
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Affiliation(s)
- Yehoshua Socol
- Department of Electrical and Electronics Engineering, Jerusalem College of Technology, Jerusalem, Israel
| | - Ariella Richardson
- Department of Data Mining, Jerusalem College of Technology, Jerusalem, Israel
| | - Imene Garali-Zineddine
- Health and Environnent Division, Institut de Radioprotection et de Sûreté Nucléaire (IRSN), Fontenay-aux-Roses, France
| | - Stephane Grison
- Health and Environnent Division, Institut de Radioprotection et de Sûreté Nucléaire (IRSN), Fontenay-aux-Roses, France
| | - Guillaume Vares
- Health and Environnent Division, Institut de Radioprotection et de Sûreté Nucléaire (IRSN), Fontenay-aux-Roses, France
| | - Dmitry Klokov
- Health and Environnent Division, Institut de Radioprotection et de Sûreté Nucléaire (IRSN), Fontenay-aux-Roses, France
- Department of Biochemistry, Microbiology and Immunology, University of Ottawa, Ottawa, ON, Canada
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Bouges E, Segers C, Leys N, Lebeer S, Zhang J, Mastroleo F. Human Intestinal Organoids and Microphysiological Systems for Modeling Radiotoxicity and Assessing Radioprotective Agents. Cancers (Basel) 2023; 15:5859. [PMID: 38136404 PMCID: PMC10741417 DOI: 10.3390/cancers15245859] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2023] [Revised: 12/08/2023] [Accepted: 12/13/2023] [Indexed: 12/24/2023] Open
Abstract
Radiotherapy is a commonly employed treatment for colorectal cancer, yet its radiotoxicity-related impact on healthy tissues raises significant health concerns. This highlights the need to use radioprotective agents to mitigate these side effects. This review presents the current landscape of human translational radiobiology, outlining the limitations of existing models and proposing engineering solutions. We delve into radiotherapy principles, encompassing mechanisms of radiation-induced cell death and its influence on normal and cancerous colorectal cells. Furthermore, we explore the engineering aspects of microphysiological systems to represent radiotherapy-induced gastrointestinal toxicity and how to include the gut microbiota to study its role in treatment failure and success. This review ultimately highlights the main challenges and future pathways in translational research for pelvic radiotherapy-induced toxicity. This is achieved by developing a humanized in vitro model that mimics radiotherapy treatment conditions. An in vitro model should provide in-depth analyses of host-gut microbiota interactions and a deeper understanding of the underlying biological mechanisms of radioprotective food supplements. Additionally, it would be of great value if these models could produce high-throughput data using patient-derived samples to address the lack of human representability to complete clinical trials and improve patients' quality of life.
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Affiliation(s)
- Eloïse Bouges
- RadioPharma Research, Nuclear Medical Applications, Belgian Nuclear Research Centre (SCK CEN), Boeretang 200, 2400 Mol, Belgium; (E.B.); (C.S.); (N.L.)
- Department of Bioscience Engineering, University of Antwerp, Groenenborgerlaan 171, 2020 Antwerp, Belgium;
- Swammerdam Institute for Life Sciences, Faculty of Science, University of Amsterdam, Science Park 904, 1098 XH Amsterdam, The Netherlands;
| | - Charlotte Segers
- RadioPharma Research, Nuclear Medical Applications, Belgian Nuclear Research Centre (SCK CEN), Boeretang 200, 2400 Mol, Belgium; (E.B.); (C.S.); (N.L.)
| | - Natalie Leys
- RadioPharma Research, Nuclear Medical Applications, Belgian Nuclear Research Centre (SCK CEN), Boeretang 200, 2400 Mol, Belgium; (E.B.); (C.S.); (N.L.)
| | - Sarah Lebeer
- Department of Bioscience Engineering, University of Antwerp, Groenenborgerlaan 171, 2020 Antwerp, Belgium;
| | - Jianbo Zhang
- Swammerdam Institute for Life Sciences, Faculty of Science, University of Amsterdam, Science Park 904, 1098 XH Amsterdam, The Netherlands;
- Tytgat Institute for Liver and Intestinal Research, Amsterdam Gastroenterology, Endocrinology and Metabolism, Amsterdam UMC, Location Academic Medical Center, 1105 BK Amsterdam, The Netherlands
| | - Felice Mastroleo
- RadioPharma Research, Nuclear Medical Applications, Belgian Nuclear Research Centre (SCK CEN), Boeretang 200, 2400 Mol, Belgium; (E.B.); (C.S.); (N.L.)
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10
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Pham ND, Nguyen THN, Vu NBD, Tran TNM, Pham BN, Le HS, Vo KH, Le XC, Tran LBH, Nguyen MH. Comparison of the radioprotective effects of the liposomal forms of five natural radioprotectants in alleviating the adverse effects of ionising irradiation on human lymphocytes and skin cells in radiotherapy. J Microencapsul 2023; 40:613-629. [PMID: 37815151 DOI: 10.1080/02652048.2023.2268705] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2023] [Accepted: 10/02/2023] [Indexed: 10/11/2023]
Abstract
This study aims to evaluate the radioprotective effects of liposomes encapsulating curcumin (Lip-CUR), silibinin (Lip-SIL), α-tocopherol (Lip-TOC), quercetin (Lip-QUE) and resveratrol (Lip-RES) in alleviating the adverse effects of ionising irradiation on human lymphoctyes and skin cells in radiotherapy. Liposomes encapsulating the above natural radioprotectants (Lip-NRPs) were prepared by the film hydration method combined with sonication. Their radioprotective effects for the cells against X-irradiation was evaluated using trypan-blue assay and γ-H2AX assay. All prepared Lip-NRPs had a mean diameter less than 240 nm, polydispersity index less than 0.32, and zeta potential more than -23 mV. Among them, the radioprotective effect of Lip-RES was lowest, while that of Lip-QUE was highest. Lip-SIL also exhibited a high radioprotective effect despite its low DPPH-radical scavenging activity (12.9%). The radioprotective effects of Lip-NRPs do not solely depend on the free radical scavenging activity of NRPs but also on their ability to activate cellular mechanisms.
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Affiliation(s)
- Ngoc-Duy Pham
- Laboratory of Tissue Engineering and Biomedical Materials, University of Science, Ho Chi Minh City, Vietnam
- Vietnam National University, Ho Chi Minh City, Vietnam
- Center of Radiation Technology and Biotechnology, Nuclear Research Institute, Da Lat, Vietnam
| | | | - Ngoc-Bich-Dao Vu
- Center of Radiation Technology and Biotechnology, Nuclear Research Institute, Da Lat, Vietnam
| | - Thi-Ngoc-Mai Tran
- Center of Radiation Technology and Biotechnology, Nuclear Research Institute, Da Lat, Vietnam
| | - Bao-Ngoc Pham
- Center of Radiation Technology and Biotechnology, Nuclear Research Institute, Da Lat, Vietnam
| | - Hoang-Sinh Le
- VN-UK Institute for Research and Executive Education, The University of Danang, Da Nang, Vietnam
| | - Kim-Hai Vo
- Department of Health of Lam-Dong Province, Da Lat, Vietnam
| | - Xuan-Cuong Le
- Center of Radiation Technology and Biotechnology, Nuclear Research Institute, Da Lat, Vietnam
| | - Le-Bao-Ha Tran
- Laboratory of Tissue Engineering and Biomedical Materials, University of Science, Ho Chi Minh City, Vietnam
| | - Minh-Hiep Nguyen
- Center of Radiation Technology and Biotechnology, Nuclear Research Institute, Da Lat, Vietnam
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11
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Shrum SA, Nukala U, Shrimali S, Pineda EN, Krager KJ, Thakkar S, Jones DE, Pathak R, Breen PJ, Aykin-Burns N, Compadre CM. Tocotrienols Provide Radioprotection to Multiple Organ Systems through Complementary Mechanisms of Antioxidant and Signaling Effects. Antioxidants (Basel) 2023; 12:1987. [PMID: 38001840 PMCID: PMC10668991 DOI: 10.3390/antiox12111987] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2023] [Revised: 10/31/2023] [Accepted: 11/07/2023] [Indexed: 11/26/2023] Open
Abstract
Tocotrienols have powerful radioprotective properties in multiple organ systems and are promising candidates for development as clinically effective radiation countermeasures. To facilitate their development as clinical radiation countermeasures, it is crucial to understand the mechanisms behind their powerful multi-organ radioprotective properties. In this context, their antioxidant effects are recognized for directly preventing oxidative damage to cellular biomolecules from ionizing radiation. However, there is a growing body of evidence indicating that the radioprotective mechanism of action for tocotrienols extends beyond their antioxidant properties. This raises a new pharmacological paradigm that tocotrienols are uniquely efficacious radioprotectors due to a synergistic combination of antioxidant and other signaling effects. In this review, we have covered the wide range of multi-organ radioprotective effects observed for tocotrienols and the mechanisms underlying it. These radioprotective effects for tocotrienols can be characterized as (1) direct cytoprotective effects, characteristic of the classic antioxidant properties, and (2) other effects that modulate a wide array of critical signaling factors involved in radiation injury.
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Affiliation(s)
- Stephen A. Shrum
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA; (U.N.); (S.S.); (E.N.P.); (K.J.K.); (S.T.); (D.E.J.); (R.P.); (P.J.B.); (N.A.-B.)
- Tocol Pharmaceuticals, LLC, Little Rock, AR 77205, USA
| | - Ujwani Nukala
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA; (U.N.); (S.S.); (E.N.P.); (K.J.K.); (S.T.); (D.E.J.); (R.P.); (P.J.B.); (N.A.-B.)
- Joint Bioinformatics Graduate Program, University of Arkansas at Little Rock, Little Rock, AR 72204, USA
| | - Shivangi Shrimali
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA; (U.N.); (S.S.); (E.N.P.); (K.J.K.); (S.T.); (D.E.J.); (R.P.); (P.J.B.); (N.A.-B.)
- Joint Bioinformatics Graduate Program, University of Arkansas at Little Rock, Little Rock, AR 72204, USA
| | - Edith Nathalie Pineda
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA; (U.N.); (S.S.); (E.N.P.); (K.J.K.); (S.T.); (D.E.J.); (R.P.); (P.J.B.); (N.A.-B.)
- Joint Bioinformatics Graduate Program, University of Arkansas at Little Rock, Little Rock, AR 72204, USA
| | - Kimberly J. Krager
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA; (U.N.); (S.S.); (E.N.P.); (K.J.K.); (S.T.); (D.E.J.); (R.P.); (P.J.B.); (N.A.-B.)
| | - Shraddha Thakkar
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA; (U.N.); (S.S.); (E.N.P.); (K.J.K.); (S.T.); (D.E.J.); (R.P.); (P.J.B.); (N.A.-B.)
| | - Darin E. Jones
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA; (U.N.); (S.S.); (E.N.P.); (K.J.K.); (S.T.); (D.E.J.); (R.P.); (P.J.B.); (N.A.-B.)
| | - Rupak Pathak
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA; (U.N.); (S.S.); (E.N.P.); (K.J.K.); (S.T.); (D.E.J.); (R.P.); (P.J.B.); (N.A.-B.)
| | - Philip J. Breen
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA; (U.N.); (S.S.); (E.N.P.); (K.J.K.); (S.T.); (D.E.J.); (R.P.); (P.J.B.); (N.A.-B.)
| | - Nukhet Aykin-Burns
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA; (U.N.); (S.S.); (E.N.P.); (K.J.K.); (S.T.); (D.E.J.); (R.P.); (P.J.B.); (N.A.-B.)
| | - Cesar M. Compadre
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA; (U.N.); (S.S.); (E.N.P.); (K.J.K.); (S.T.); (D.E.J.); (R.P.); (P.J.B.); (N.A.-B.)
- Tocol Pharmaceuticals, LLC, Little Rock, AR 77205, USA
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12
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Zhang T, He R, Ding X, Zhao M, Wang C, Zhu S, Liao Y, Wang D, Wang H, Guo J, Liu Y, Zhou Z, Gu Z, Hu H. Fullerenols Mitigate Radiation-Induced Myocardial Injury. Adv Healthc Mater 2023; 12:e2300819. [PMID: 37698231 DOI: 10.1002/adhm.202300819] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2023] [Revised: 07/19/2023] [Indexed: 09/13/2023]
Abstract
Radiation-induced heart disease is a serious side effect of radiation therapy that can lead to severe consequences. However, effective and safe methods for their prevention and treatment are presently lacking. This study reports the crucial function of fullerenols in protecting cardiomyocytes from radiation injury. First, fullerenols are synthesized using a simple base-catalyzed method. Next, the as-prepared fullerenols are applied as an effective free radical scavenger and broad-spectrum antioxidant to protect against X-ray-induced cardiomyocyte injury. Their ability to reduce apoptosis via the mitochondrial signaling pathway at the cellular level is then verified. Finally, it is observed in animal models that fullerenols accumulate in the heart and alleviate myocardial damage induced by X-rays. This study represents a timely and essential analysis of the prevention and treatment of radiological myocardial injury, providing new insights into the applications of fullerenols for therapeutic strategies.
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Affiliation(s)
- Tingjun Zhang
- Academician Workstation, Affiliated Hospital of North Sichuan Medical College Nanchong, Nanchong, 637000, P. R. China
- Department of Infectious Diseases, Affiliated Hospital of North Sichuan Medical College, Nanchong, 637000, P. R. China
| | - Rendong He
- Academician Workstation, Affiliated Hospital of North Sichuan Medical College Nanchong, Nanchong, 637000, P. R. China
- Department of Clinical Laboratory, Affiliated Hospital of North Sichuan Medical College, Nanchong, 637000, P. R. China
| | - Xuefeng Ding
- Academician Workstation, Affiliated Hospital of North Sichuan Medical College Nanchong, Nanchong, 637000, P. R. China
- Department of Critical Care Medicine, Affiliated Hospital of North Sichuan Medical College, Nanchong, 637000, P. R. China
| | - Maoru Zhao
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, 100049, P. R. China
- Center of Materials Science and Optoelectronics Engineering, College of Materials Science and Optoelectronic Technology, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Chengyan Wang
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Shuang Zhu
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, 100049, P. R. China
- Center of Materials Science and Optoelectronics Engineering, College of Materials Science and Optoelectronic Technology, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - You Liao
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, 100049, P. R. China
- Center of Materials Science and Optoelectronics Engineering, College of Materials Science and Optoelectronic Technology, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Dongmei Wang
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, 100049, P. R. China
- Center of Materials Science and Optoelectronics Engineering, College of Materials Science and Optoelectronic Technology, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Hao Wang
- Academician Workstation, Affiliated Hospital of North Sichuan Medical College Nanchong, Nanchong, 637000, P. R. China
| | - Junsong Guo
- Academician Workstation, Affiliated Hospital of North Sichuan Medical College Nanchong, Nanchong, 637000, P. R. China
| | - Yaping Liu
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Zhonghui Zhou
- Academician Workstation, Affiliated Hospital of North Sichuan Medical College Nanchong, Nanchong, 637000, P. R. China
| | - Zhanjun Gu
- Academician Workstation, Affiliated Hospital of North Sichuan Medical College Nanchong, Nanchong, 637000, P. R. China
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, 100049, P. R. China
- Center of Materials Science and Optoelectronics Engineering, College of Materials Science and Optoelectronic Technology, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Houxiang Hu
- Academician Workstation, Affiliated Hospital of North Sichuan Medical College Nanchong, Nanchong, 637000, P. R. China
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13
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Tian M, Mu X, Fan D, Liu Z, Liu Q, Yue K, Song Z, Luo J, Zhang S. A Transformable Mucoadhesive Microgel Network for Noninvasive Multimodal Imaging And Radioprotection of a Large Area of the Gastrointestinal Tract. Adv Mater 2023; 35:e2303436. [PMID: 37364891 DOI: 10.1002/adma.202303436] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Revised: 06/04/2023] [Indexed: 06/28/2023]
Abstract
The lack of noninvasive imaging and modulation of a large area of the gastrointestinal (GI) tract constrain the diagnosis and treatment of many GI-related diseases. Recent advances use novel mucoadhesive materials to coat a part of the GI tract and then modulate its functions. High mucoadhesion is the key factor of the partial coating, but also the limitation for not spreading and covering the lower GI tract. Here, a bismuth-pectin organic-inorganic hybrid complex is screened and engineered into a transformable microgel network (Bi-GLUE) with high flowability and mucoadhesion, such that it can quickly transit through and coat a large area of the GI tract. In murine and porcine models, Bi-GLUE delivers contrast agents to achieve real-time, large-area GI-tract imaging under X-ray or magnetic resonance modalities and to facilitate the non-invasive diagnosis of familial adenomatous polyposis. Moreover, Bi-GLUE, like an intracorporal radiation shield, decreases the radiotoxicity in a whole-abdomen irradiation rat model. This transformable microgel network offers a new direction that can modulate a large area of the GI tract and may have broad applications for GI-related conditions.
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Affiliation(s)
- Meng Tian
- School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai, 200030, China
| | - Xin Mu
- Advanced Therapies, Siemens Healthineers Ltd., Shanghai, 200126, China
- School of Biomedical Engineering, ShanghaiTech University, Shanghai, 201210, China
| | - Dongyue Fan
- School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai, 200030, China
- Einthoven Laboratory for Vascular and Regenerative Medicine, Division of Thrombosis and Hemostasis, Department of Internal Medicine, Leiden University Medical Center, Leiden, 2333 ZA, Netherlands
| | - Zhen Liu
- School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai, 200030, China
| | - Qi Liu
- South China Advanced Institute for Soft Matter Science and Technology, School of Emergent Soft Matter, South China University of Technology, Guangzhou, 510640, China
| | - Kan Yue
- South China Advanced Institute for Soft Matter Science and Technology, School of Emergent Soft Matter, South China University of Technology, Guangzhou, 510640, China
| | - Zhiling Song
- School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai, 200030, China
| | - Jie Luo
- School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai, 200030, China
| | - Shiyi Zhang
- School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai, 200030, China
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14
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Ohm AM, Affandi T, Reisz JA, Caino MC, D'Alessandro A, Reyland ME. Metabolic reprogramming contributes to radioprotection by protein kinase Cδ. J Biol Chem 2023; 299:105186. [PMID: 37611829 PMCID: PMC10519828 DOI: 10.1016/j.jbc.2023.105186] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Revised: 08/17/2023] [Accepted: 08/18/2023] [Indexed: 08/25/2023] Open
Abstract
Loss of protein kinase Cδ (PKCδ) activity renders cells resistant to DNA damaging agents, including irradiation; however, the mechanism(s) underlying resistance is poorly understood. Here, we have asked if metabolic reprogramming by PKCδ contributes to radioprotection. Analysis of global metabolomics showed that depletion of PKCδ affects metabolic pathways that control energy production and antioxidant, nucleotide, and amino acid biosynthesis. Increased NADPH and nucleotide production in PKCδ-depleted cells is associated with upregulation of the pentose phosphate pathway (PPP) as evidenced by increased activation of G6PD and an increase in the nucleotide precursor, 5-phosphoribosyl-1-pyrophosphate. Stable isotope tracing with U-[13C6] glucose showed reduced utilization of glucose for glycolysis in PKCδ-depleted cells and no increase in U-[13C6] glucose incorporation into purines or pyrimidines. In contrast, isotope tracing with [13C5, 15N2] glutamine showed increased utilization of glutamine for synthesis of nucleotides, glutathione, and tricarboxylic acid intermediates and increased incorporation of labeled glutamine into pyruvate and lactate. Using a glycolytic rate assay, we confirmed that anaerobic glycolysis is increased in PKCδ-depleted cells; this was accompanied by a reduction in oxidative phosphorylation, as assayed using a mitochondrial stress assay. Importantly, pretreatment of cells with specific inhibitors of the PPP or glutaminase prior to irradiation reversed radioprotection in PKCδ-depleted cells, indicating that these cells have acquired codependency on the PPP and glutamine for survival. Our studies demonstrate that metabolic reprogramming to increase utilization of glutamine and nucleotide synthesis contributes to radioprotection in the context of PKCδ inhibition.
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Affiliation(s)
- Angela M Ohm
- Department of Craniofacial Biology, School of Dental Medicine, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA
| | - Trisiani Affandi
- Department of Craniofacial Biology, School of Dental Medicine, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA
| | - Julie A Reisz
- Department of Biochemistry and Molecular Genetics, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA
| | - M Cecilia Caino
- Department of Pharmacology, School of Medicine, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA
| | - Angelo D'Alessandro
- Department of Biochemistry and Molecular Genetics, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA
| | - Mary E Reyland
- Department of Craniofacial Biology, School of Dental Medicine, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA.
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15
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Liu D, Cao F, Xu Z, Zhao C, Liu Z, Pang J, Liu ZX, Moghiseh M, Butler A, Liang S, Fan W, Yang J. Selective Organ-Targeting Hafnium Oxide Nanoparticles with Multienzyme-Mimetic Activities Attenuate Radiation-Induced Tissue Damage. Adv Mater 2023:e2308098. [PMID: 37777858 DOI: 10.1002/adma.202308098] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2023] [Revised: 09/25/2023] [Indexed: 10/02/2023]
Abstract
Radioprotective agents hold clinical promises to counteract off-target adverse effects of radiation and benefit radiotherapeutic outcomes, yet the inability to control drug transport in human organs poses a leading limitation. Based upon a validated rank-based multigene signature model, radiosensitivity indices are evaluated of diverse normal organs as a genomic predictor of radiation susceptibility. Selective ORgan-Targeting (SORT) hafnium oxide nanoparticles (HfO2 NPs) are rationally designed via modulated synthesis by α-lactalbumin, homing to top vulnerable organs. HfO2 NPs like Hensify are commonly radioenhancers, but SORT HfO2 NPs exhibit surprising radioprotective effects dictated by unfolded ligands and Hf(0)/Hf(IV) redox couples. Still, the X-ray attenuation patterns allow radiological confirmation in target organs by dual-beam spectral computed tomography. SORT HfO2 NPs present potent antioxidant activities, catalytically scavenge reactive oxygen species, and mimic multienzyme catalytic activities. Consequently, SORT NPs rescue radiation-induced DNA damage in mouse and rabbit models and provide survival benefits upon lethal exposures. In addition to inhibiting radiation-induced mitochondrial apoptosis, SORT NPs impede DNA damage and inflammation by attenuating activated FoxO, Hippo, TNF, and MAPK interactive cascades. A universal methodology is proposed to reverse radioenhancers into radioprotectors. SORT radioprotective agents with image guidance are envisioned as compelling in personalized shielding from radiation deposition.
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Affiliation(s)
- Dingxin Liu
- State Key Laboratory of Oncology in South China, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangdong Provincial Clinical Research Center for Cancer, Sun Yat-sen University Cancer Center, Guangzhou, 510060, China
- Department of Intensive Care Unit, Sun Yat-sen University Cancer Center, Guangzhou, 510060, China
| | - Fei Cao
- State Key Laboratory of Oncology in South China, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangdong Provincial Clinical Research Center for Cancer, Sun Yat-sen University Cancer Center, Guangzhou, 510060, China
- Department of Minimally Invasive Interventional Therapy, Sun Yat-sen University Cancer Center, Guangzhou, 510060, China
| | - Zhifeng Xu
- Department of Radiology, The First People's Hospital of Foshan, Foshan, 528041, China
| | - Chunhua Zhao
- State Key Laboratory of Oncology in South China, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangdong Provincial Clinical Research Center for Cancer, Sun Yat-sen University Cancer Center, Guangzhou, 510060, China
| | - Zekun Liu
- State Key Laboratory of Oncology in South China, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangdong Provincial Clinical Research Center for Cancer, Sun Yat-sen University Cancer Center, Guangzhou, 510060, China
| | - Jiadong Pang
- State Key Laboratory of Oncology in South China, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangdong Provincial Clinical Research Center for Cancer, Sun Yat-sen University Cancer Center, Guangzhou, 510060, China
| | - Ze-Xian Liu
- State Key Laboratory of Oncology in South China, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangdong Provincial Clinical Research Center for Cancer, Sun Yat-sen University Cancer Center, Guangzhou, 510060, China
| | - Mahdieh Moghiseh
- Department of Radiology, Centre for Bioengineering and Nanomedicine, University of Otago, Christchurch, 8011, New Zealand
- MARS Bioimaging Ltd., Christchurch, 8041, New Zealand
| | - Anthony Butler
- Department of Radiology, Centre for Bioengineering and Nanomedicine, University of Otago, Christchurch, 8011, New Zealand
- MARS Bioimaging Ltd., Christchurch, 8041, New Zealand
- Department of Physics and Astronomy, University of Canterbury, Christchurch, 8041, New Zealand
| | | | - Weijun Fan
- State Key Laboratory of Oncology in South China, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangdong Provincial Clinical Research Center for Cancer, Sun Yat-sen University Cancer Center, Guangzhou, 510060, China
- Department of Minimally Invasive Interventional Therapy, Sun Yat-sen University Cancer Center, Guangzhou, 510060, China
| | - Jiang Yang
- State Key Laboratory of Oncology in South China, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangdong Provincial Clinical Research Center for Cancer, Sun Yat-sen University Cancer Center, Guangzhou, 510060, China
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16
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Rahman AU, Ali A, Ahmad F, Ahmad S, Alharbi M, Alasmari AF, Fayyaz A, Rana QUA, Khan S, Hasan F, Badshah M, Shah AA. Unraveling the Radioprotective Mechanisms of UV-Resistant Bacillus subtilis ASM-1 Extracted Compounds through Molecular Docking. Pharmaceuticals (Basel) 2023; 16:1139. [PMID: 37631055 PMCID: PMC10459916 DOI: 10.3390/ph16081139] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2023] [Revised: 07/26/2023] [Accepted: 08/01/2023] [Indexed: 08/27/2023] Open
Abstract
Radioresistant microorganisms possess inimitable capabilities enabling them to thrive under extreme radiation. However, the existence of radiosensitive microorganisms inhabiting such an inhospitable environment is still a mystery. The current study examines the potential of radioresistant microorganisms to protect radiosensitive microorganisms in harsh environments. Bacillus subtilis strain ASM-1 was isolated from the Thal desert in Pakistan and evaluated for antioxidative and radioprotective potential after being exposed to UV radiation. The strain exhibited 54.91% survivability under UVB radiation (5.424 × 103 J/m2 for 8 min) and 50.94% to mitomycin-C (4 µg/mL). Extracellular fractions collected from ASM-1 extracts showed significant antioxidant potential, and chemical profiling revealed a pool of bioactive compounds, including pyrrolopyrazines, amides, alcoholics, and phenolics. The E-2 fraction showed the maximum antioxidant potential via DPPH assay (75%), and H2O2 scavenging assay (68%). A combination of ASM-1 supernatant with E-2 fraction (50 µL in a ratio of 2:1) provided substantial protection to radiosensitive cell types, Bacillus altitudinis ASM-9 (MT722073) and E. coli (ATCC 10536), under UVB radiation. Docking studies reveal that the compound supported by literature against the target proteins have strong binding affinities which further inferred its medical uses in health care treatment. This is followed by molecular dynamic simulations where it was observed among trajectories that there were no significant changes in major secondary structure elements, despite the presence of naturally flexible loops. This behavior can be interpreted as a strategy to enhance intermolecular conformational stability as the simulation progresses. Thus, our study concludes that Bacillus subtilis ASM-1 protects radiosensitive strains from radiation-induced injuries via biofilm formation and secretion of antioxidative and radioprotective compounds in the environment.
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Affiliation(s)
- Asim Ur Rahman
- Department of Microbiology, Quaid-i-Azam University, Islamabad 45320, Pakistan; (A.U.R.); (A.A.); (S.K.); (F.H.); (M.B.)
| | - Aftab Ali
- Department of Microbiology, Quaid-i-Azam University, Islamabad 45320, Pakistan; (A.U.R.); (A.A.); (S.K.); (F.H.); (M.B.)
| | - Faisal Ahmad
- National Center for Bioinformatics, Quaid-i-Azam University, Islamabad 45320, Pakistan;
| | - Sajjad Ahmad
- Department of Health and Biological Sciences, Abasyn University, Peshawar 25000, Pakistan;
- Gilbert and Rose-Marie Chagoury School of Medicine, Lebanese American University, Beirut P.O. Box 36, Lebanon
- Department of Natural Sciences, Lebanese American University, Beirut P.O. Box 36, Lebanon
| | - Metab Alharbi
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia; (M.A.); (A.F.A.)
| | - Abdullah F. Alasmari
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia; (M.A.); (A.F.A.)
| | - Amna Fayyaz
- Department of Environmental Sciences, Quaid-i-Azam University, Islamabad 45320, Pakistan;
| | - Qurrat ul ain Rana
- Department of Microbiology, Quaid-i-Azam University, Islamabad 45320, Pakistan; (A.U.R.); (A.A.); (S.K.); (F.H.); (M.B.)
- Joint Genome Institute, Lawrence Berkely National Laboratory, Berkley, CA 94720, USA
| | - Samiullah Khan
- Department of Microbiology, Quaid-i-Azam University, Islamabad 45320, Pakistan; (A.U.R.); (A.A.); (S.K.); (F.H.); (M.B.)
| | - Fariha Hasan
- Department of Microbiology, Quaid-i-Azam University, Islamabad 45320, Pakistan; (A.U.R.); (A.A.); (S.K.); (F.H.); (M.B.)
| | - Malik Badshah
- Department of Microbiology, Quaid-i-Azam University, Islamabad 45320, Pakistan; (A.U.R.); (A.A.); (S.K.); (F.H.); (M.B.)
| | - Aamer Ali Shah
- Department of Microbiology, Quaid-i-Azam University, Islamabad 45320, Pakistan; (A.U.R.); (A.A.); (S.K.); (F.H.); (M.B.)
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Ibáñez B, Melero A, Montoro A, San Onofre N, Soriano JM. Radioprotective Effects from Propolis: A Review. Molecules 2023; 28:5842. [PMID: 37570811 PMCID: PMC10420827 DOI: 10.3390/molecules28155842] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Revised: 07/25/2023] [Accepted: 07/29/2023] [Indexed: 08/13/2023] Open
Abstract
Propolis is a natural bee-produced substance with antimicrobial, anti-inflammatory, and wound-healing properties, containing some components from the leaves, buds and resins of plants. It has been used for centuries for various health benefits. In this manuscript, our group reviewed the radioprotective effect of propolis using PubMed and Embase, and our review was conducted according to the PRISMA statement. Finally, 27 articles were included in this review, which includes the radioprotective effect of propolis from cell-based studies (n = 8), animal models (n = 14), and human trials (n = 5). Results reflected that the dosage forms of propolis extracted in the scientific literature were ethanolic extracts of propolis, a water-soluble derivate of propolis, or capsules. The efficacy of the radioprotective properties from propolis is extracted from the bibliography, as several compounds of this resinous mixture individually or synergistically are possible candidates that have the radioprotective effect. In fact, studies prior to 2011 lacked a comprehensive characterization of propolis due to the variability in active compounds among different batches of propolis and were limited to analytical techniques. Furthermore, in this manuscript, we have selected studies to include primarily propolis types from Brazil, Croatia, Egypt, European countries, and those commercialized in Spain. They all contained ethanolic extract of propolis (EEP) and were influenced by different dosage forms. EEP showed a significant presence of lipophilic bioactive compounds like flavones, flavonols, and flavanones.
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Affiliation(s)
- Blanca Ibáñez
- Food & Health Laboratory, Institute of Materials Science, University of Valencia, 46980 Paterna, Spain
| | - Ana Melero
- Department of Pharmacy and Pharmaceutical Technology and Parasitology, Faculty of Pharmacy, University of Valencia, 46100 Burjassot, Spain
| | - Alegría Montoro
- Service of Radiological Protection, Clinical Area of Medical Image, University and Polytechnic La Fe Hospital, 46026 Valencia, Spain
- Biomedical Imaging Research Group GIBI230, Health Research Institute (IISLaFe), University and Polytechnic La Fe Hospital, 46026 Valencia, Spain
| | - Nadia San Onofre
- Food & Health Laboratory, Institute of Materials Science, University of Valencia, 46980 Paterna, Spain
- Department of Community Nursing, Preventive Medicine and Public Health and History of Science, University of Alicante, 03690 Alicante, Spain
| | - Jose M. Soriano
- Food & Health Laboratory, Institute of Materials Science, University of Valencia, 46980 Paterna, Spain
- Joint Research Unit on Endocrinology, Nutrition and Clinical Dietetics, University of Valencia-Health Research Institute La Fe, 46026 Valencia, Spain
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KOÇ M, DENİZ CD, ERYILMAZ MA, TEZCAN Y, GÜRBİLEK M. Radioprotective effects of melatonin and thymoquinone on liver, parotid gland, brain, and testis of rats exposed to total body irradiation. Turk J Med Sci 2023; 53:902-908. [PMID: 38031946 PMCID: PMC10760538 DOI: 10.55730/1300-0144.5654] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2023] [Revised: 08/18/2023] [Accepted: 02/02/2023] [Indexed: 12/01/2023] Open
Abstract
BACKGROUND This study aimed to investigate thymoquinone (TQ), and melatonin's radioprotective effects on liver, parotid gland, brain, and testis of rats which were exposed to total body irradiation (IR). METHODS Thirty adult Wistar rats were randomly divided into four groups that are Group 1 (control group): total body IR only, Group 2: IR-Melatonin (10 mg/kg), Group 3: IR-TQ (10 mg/kg), and Group 4 (sham group): nothing. Total body IR dose was 6 Gy. Tissue samples were taken 90 min after IR. The measurements of malondialdehyde (MDA), glutathione peroxidase (GSH-Px), and superoxide dismutase (SOD) were performed in all groups. RESULTS In IR group, GSH-Px and SOD activities significantly decreased whereas MDA levels significantly increased when compared with the sham in all tissues. We recorded a significant decrease in MDA levels in IR-TQ group in liver and parotid gland of rats. Moreover, SOD did not change in IR-TQ group compared with IR only group. DISCUSSION Melatonin, a powerful antioxidant, plays role in preventing oxidative stress. We revealed that premedication with TQ significantly inhibited the increase in MDA induced by IR in liver and parotid gland and protected the activities of SOD, an antioxidant enzyme, in all other tissues. It has been revealed that TQ has a potential effect preventing IR-induced damage as much as melatonin.
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Affiliation(s)
- Mehmet KOÇ
- Department of Radiation Oncology, Faculty of Medicine, Necmettin Erbakan University, Konya,
Turkiye
| | - Ciğdem Damla DENİZ
- Department of Medical Biochemistry, Konya City Hospital, University of Health Sciences, Konya,
Turkiye
| | - Mehmet Akif ERYILMAZ
- Department of Otolaryngology, Faculty of Medicine, Necmettin Erbakan University, Konya,
Turkiye
| | - Yılmaz TEZCAN
- Department of Radiation Oncology, Faculty of Medicine, Ankara Yıldırım Beyazıt University, Ankara,
Turkiye
| | - Mehmet GÜRBİLEK
- Department of Medical Biochemistry, Faculty of Medicine, Necmettin Erbakan University, Konya,
Turkiye
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Cruz-Vallejo V, Zarco-Mendoza A, Morales-Ramírez P. Kinetics of the in vivo genotoxic and radioprotective effects of methyl gallate and epigallocatechin gallate. Environ Mol Mutagen 2023; 64:393-400. [PMID: 37431273 DOI: 10.1002/em.22563] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/10/2023] [Revised: 05/19/2023] [Accepted: 07/07/2023] [Indexed: 07/12/2023]
Abstract
The aim of this study was to compare the kinetics of the in vivo action of equimolar doses of methyl gallate (MG) and epigallocatechin gallate (EGCG) on their capacity to induce DNA damage and to protect against DNA damage induced by 60 Co gamma rays. DNA-damaged cells were determined by single-cell gel electrophoresis (comets) in murine peripheral blood leukocytes. The maximum radioprotective effects of MG and EGCG (approximately 70%) occurred at 15 min after administration when their effect was determined 2 min following irradiation. MG and EGCG have similar radioprotective indexes, which due to their fast response indicate that they are involved in free radical scavenging. Due to the similar radioprotective activities of MG and EGCG, the in vivo radioprotective effects of these agents do not seem to be dependent on the number of hydroxyl groups present in their structures but instead on the presence of the galloyl radical. EGCG induces an early, significant, and persistent increase in the number of DNA-damaged cells and a later and more important increase in the number of damaged cells, suggesting that it has two mechanisms by which it can induce DNA damage. MG at the same molar dose as EGCG caused a significant and persistent increase in DNA damaged cells but to a much lesser extent to that induce by EGCG, suggesting that the galloyl radical is not involved in the mechanism of DNA breaks induction.
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Affiliation(s)
- Virginia Cruz-Vallejo
- Biology Department, Instituto Nacional de Investigaciones Nucleares, Mexico City, Mexico
| | - Anaís Zarco-Mendoza
- Biology Department, Instituto Nacional de Investigaciones Nucleares, Mexico City, Mexico
| | - Pedro Morales-Ramírez
- Biology Department, Instituto Nacional de Investigaciones Nucleares, Mexico City, Mexico
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Gudkov SV, Gao M, Simakin AV, Baryshev AS, Pobedonostsev RV, Baimler IV, Rebezov MB, Sarimov RM, Astashev ME, Dikovskaya AO, Molkova EA, Kozlov VA, Bunkin NF, Sevostyanov MA, Kolmakov AG, Kaplan MA, Sharapov MG, Ivanov VE, Bruskov VI, Kalinichenko VP, Aiyyzhy KO, Voronov VV, Pimpha N, Li R, Shafeev GA. Laser Ablation-Generated Crystalline Selenium Nanoparticles Prevent Damage of DNA and Proteins Induced by Reactive Oxygen Species and Protect Mice against Injuries Caused by Radiation-Induced Oxidative Stress. Materials (Basel) 2023; 16:5164. [PMID: 37512437 PMCID: PMC10386620 DOI: 10.3390/ma16145164] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/27/2023] [Revised: 06/25/2023] [Accepted: 07/17/2023] [Indexed: 07/30/2023]
Abstract
With the help of laser ablation, a technology for obtaining nanosized crystalline selenium particles (SeNPs) has been created. The SeNPs do not exhibit significant toxic properties, in contrast to molecular selenium compounds. The administration of SeNPs can significantly increase the viabilities of SH-SY5Y and PCMF cells after radiation exposure. The introduction of such nanoparticles into the animal body protects proteins and DNA from radiation-induced damage. The number of chromosomal breaks and oxidized proteins decreases in irradiated mice treated with SeNPs. Using hematological tests, it was found that a decrease in radiation-induced leukopenia and thrombocytopenia is observed when selenium nanoparticles are injected into mice before exposure to ionizing radiation. The administration of SeNPs to animals 5 h before radiation exposure in sublethal and lethal doses significantly increases their survival rate. The modification dose factor for animal survival was 1.2. It has been shown that the introduction of selenium nanoparticles significantly normalizes gene expression in the cells of the red bone marrow of mice after exposure to ionizing radiation. Thus, it has been demonstrated that SeNPs are a new gene-protective and radioprotective agent that can significantly reduce the harmful effects of ionizing radiation.
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Affiliation(s)
- Sergey V Gudkov
- Prokhorov General Physics Institute of the Russian Academy of Sciences, 38 Vavilova St., 119991 Moscow, Russia
- Russian Scientific-Research Institute of Phytopathology of Russian Academy of Sciences, 143050 Big Vyazemy, Russia
- Institute of Biology and Biomedicine, Lobachevsky State University of Nizhny Novgorod, 603022 Nizhny Novgorod, Russia
| | - Meng Gao
- State Key Laboratory of Radiation Medicine and Protection, School for Radiological and Interdisciplinary Sciences (RAD-X), Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Suzhou Medical College, Soochow University, Suzhou 215123, China
| | - Alexander V Simakin
- Prokhorov General Physics Institute of the Russian Academy of Sciences, 38 Vavilova St., 119991 Moscow, Russia
| | - Alexey S Baryshev
- Prokhorov General Physics Institute of the Russian Academy of Sciences, 38 Vavilova St., 119991 Moscow, Russia
| | - Roman V Pobedonostsev
- Prokhorov General Physics Institute of the Russian Academy of Sciences, 38 Vavilova St., 119991 Moscow, Russia
| | - Ilya V Baimler
- Prokhorov General Physics Institute of the Russian Academy of Sciences, 38 Vavilova St., 119991 Moscow, Russia
| | - Maksim B Rebezov
- Prokhorov General Physics Institute of the Russian Academy of Sciences, 38 Vavilova St., 119991 Moscow, Russia
| | - Ruslan M Sarimov
- Prokhorov General Physics Institute of the Russian Academy of Sciences, 38 Vavilova St., 119991 Moscow, Russia
| | - Maxim E Astashev
- Prokhorov General Physics Institute of the Russian Academy of Sciences, 38 Vavilova St., 119991 Moscow, Russia
- Institute of Cell Biophysics of the Russian Academy of Sciences, Federal Research Center "Push-chino Scientific Center for Biological Research of the Russian Academy of Sciences", Institutskaya St., 3, 142290 Pushchino, Russia
| | - Anastasia O Dikovskaya
- Prokhorov General Physics Institute of the Russian Academy of Sciences, 38 Vavilova St., 119991 Moscow, Russia
| | - Elena A Molkova
- Prokhorov General Physics Institute of the Russian Academy of Sciences, 38 Vavilova St., 119991 Moscow, Russia
| | - Valery A Kozlov
- Prokhorov General Physics Institute of the Russian Academy of Sciences, 38 Vavilova St., 119991 Moscow, Russia
- Department of Fundamental Sciences, Bauman Moscow State Technical University, 2-nd Baumanskaya Str. 5, 105005 Moscow, Russia
| | - Nikolay F Bunkin
- Prokhorov General Physics Institute of the Russian Academy of Sciences, 38 Vavilova St., 119991 Moscow, Russia
- Department of Fundamental Sciences, Bauman Moscow State Technical University, 2-nd Baumanskaya Str. 5, 105005 Moscow, Russia
| | - Mikhail A Sevostyanov
- Russian Scientific-Research Institute of Phytopathology of Russian Academy of Sciences, 143050 Big Vyazemy, Russia
- A. A. Baikov Institute of Metallurgy and Materials Science (IMET RAS) of the Russian Academy of Sciences, Leninsky Prospect, 49, 119334 Moscow, Russia
| | - Alexey G Kolmakov
- A. A. Baikov Institute of Metallurgy and Materials Science (IMET RAS) of the Russian Academy of Sciences, Leninsky Prospect, 49, 119334 Moscow, Russia
| | - Mikhail A Kaplan
- A. A. Baikov Institute of Metallurgy and Materials Science (IMET RAS) of the Russian Academy of Sciences, Leninsky Prospect, 49, 119334 Moscow, Russia
| | - Mars G Sharapov
- Institute of Cell Biophysics of the Russian Academy of Sciences, Federal Research Center "Push-chino Scientific Center for Biological Research of the Russian Academy of Sciences", Institutskaya St., 3, 142290 Pushchino, Russia
| | - Vladimir E Ivanov
- Prokhorov General Physics Institute of the Russian Academy of Sciences, 38 Vavilova St., 119991 Moscow, Russia
- Institute of Theoretical and Experimental Biophysics of the Russian Academy of Sciences, Institutskaya St. 3, 142290 Pushchino, Russia
| | - Vadim I Bruskov
- Institute of Theoretical and Experimental Biophysics of the Russian Academy of Sciences, Institutskaya St. 3, 142290 Pushchino, Russia
| | - Valery P Kalinichenko
- Russian Scientific-Research Institute of Phytopathology of Russian Academy of Sciences, 143050 Big Vyazemy, Russia
- Institute of Fertility of Soils of South Russia, 346493 Persianovka, Russia
| | - Kuder O Aiyyzhy
- Prokhorov General Physics Institute of the Russian Academy of Sciences, 38 Vavilova St., 119991 Moscow, Russia
| | - Valery V Voronov
- Prokhorov General Physics Institute of the Russian Academy of Sciences, 38 Vavilova St., 119991 Moscow, Russia
| | - Nuttaporn Pimpha
- National Nanotechnology Center (NANOTEC), National Science and Technology Development Agency (NSTDA) 111, Phahonyotin Rd, Klong Luang 12120, Thailand
| | - Ruibin Li
- State Key Laboratory of Radiation Medicine and Protection, School for Radiological and Interdisciplinary Sciences (RAD-X), Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Suzhou Medical College, Soochow University, Suzhou 215123, China
| | - Georgy A Shafeev
- Prokhorov General Physics Institute of the Russian Academy of Sciences, 38 Vavilova St., 119991 Moscow, Russia
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Koch SM, Freidank-Pohl C, Siontas O, Cortesao M, Mota A, Runzheimer K, Jung S, Rebrosova K, Siler M, Moeller R, Meyer V. Aspergillus niger as a cell factory for the production of pyomelanin, a molecule with UV-C radiation shielding activity. Front Microbiol 2023; 14:1233740. [PMID: 37547691 PMCID: PMC10399693 DOI: 10.3389/fmicb.2023.1233740] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2023] [Accepted: 07/03/2023] [Indexed: 08/08/2023] Open
Abstract
Melanins are complex pigments with various biological functions and potential applications in space exploration and biomedicine due to their radioprotective properties. Aspergillus niger, a fungus known for its high radiation resistance, is widely used in biotechnology and a candidate for melanin production. In this study, we investigated the production of fungal pyomelanin (PyoFun) in A. niger by inducing overproduction of the pigment using L-tyrosine in a recombinant ΔhmgA mutant strain (OS4.3). The PyoFun pigment was characterized using three spectroscopic methods, and its antioxidant properties were assessed using a DPPH-assay. Additionally, we evaluated the protective effect of PyoFun against non-ionizing radiation (monochromatic UV-C) and compared its efficacy to a synthetically produced control pyomelanin (PyoSyn). The results confirmed successful production of PyoFun in A. niger through inducible overproduction. Characterization using spectroscopic methods confirmed the presence of PyoFun, and the DPPH-assay demonstrated its strong antioxidant properties. Moreover, PyoFun exhibited a highly protective effect against radiation-induced stress, surpassing the protection provided by PyoSyn. The findings of this study suggest that PyoFun has significant potential as a biological shield against harmful radiation. Notably, PyoFun is synthesized extracellularly, differing it from other fungal melanins (such as L-DOPA- or DHN-melanin) that require cell lysis for pigment purification. This characteristic makes PyoFun a valuable resource for biotechnology, biomedicine, and the space industry. However, further research is needed to evaluate its protective effect in a dried form and against ionizing radiation.
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Affiliation(s)
- Stella Marie Koch
- Radiation Biology Department, Aerospace Microbiology Research Group, German Aerospace Center, Institute of Aerospace Medicine, Cologne, Germany
| | - Carsten Freidank-Pohl
- Applied and Molecular Microbiology, Institute of Biotechnology, Technische Universität Berlin, Berlin, Germany
| | - Oliver Siontas
- Applied and Molecular Microbiology, Institute of Biotechnology, Technische Universität Berlin, Berlin, Germany
| | - Marta Cortesao
- Radiation Biology Department, Aerospace Microbiology Research Group, German Aerospace Center, Institute of Aerospace Medicine, Cologne, Germany
| | - Afonso Mota
- Radiation Biology Department, Aerospace Microbiology Research Group, German Aerospace Center, Institute of Aerospace Medicine, Cologne, Germany
| | - Katharina Runzheimer
- Radiation Biology Department, Aerospace Microbiology Research Group, German Aerospace Center, Institute of Aerospace Medicine, Cologne, Germany
| | - Sascha Jung
- Applied and Molecular Microbiology, Institute of Biotechnology, Technische Universität Berlin, Berlin, Germany
| | - Katarina Rebrosova
- Department of Microbiology, Faculty of Medicine, Masaryk University (MUNI) and St. Anne's Faculty Hospital, Brno, Czechia
| | - Martin Siler
- Institute of Scientific Instruments of the Czech Academy of Sciences, Brno, Czechia
| | - Ralf Moeller
- Radiation Biology Department, Aerospace Microbiology Research Group, German Aerospace Center, Institute of Aerospace Medicine, Cologne, Germany
| | - Vera Meyer
- Applied and Molecular Microbiology, Institute of Biotechnology, Technische Universität Berlin, Berlin, Germany
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Ibáñez B, Melero A, Montoro A, Merino-Torres JF, Soriano JM, San Onofre N. A Narrative Review of the Herbal Preparation of Ayurvedic, Traditional Chinese, and Kampō Medicines Applied as Radioprotectors. Antioxidants (Basel) 2023; 12:1437. [PMID: 37507975 PMCID: PMC10376155 DOI: 10.3390/antiox12071437] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Revised: 07/12/2023] [Accepted: 07/14/2023] [Indexed: 07/30/2023] Open
Abstract
In recent years, there has been growing scientific interest in the search for natural radioprotectors that can be used to mitigate the effects of radiation on patients, healthcare personnel, and even for space travel. This narrative review covers the past fifty years and focuses on herbal preparations of Ayurvedic, Traditional Chinese, and Kampō Medicines that have the potential to reduce or eliminate the harmful effects of radiation. Our findings highlight ten herbal preparations, namely Abana, Amalakyadi Churna, Amritaprasham, Brahma, Bu-zhong-yi-qi-tang (BZYQT), Chyavanaprasha, Cystone, Geriforte, Mentat, and Triphala, which have demonstrated potential radioprotective effects. This review examines their composition, properties, and possible mechanisms of action in relation to their radioprotective properties. Exploring the ethnobotany of traditional Asian medicine is particularly interesting as it may lead to the discovery of new active compounds with radioprotective properties.
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Affiliation(s)
- Blanca Ibáñez
- Food & Health Laboratory, Institute of Materials Science, University of Valencia, 46980 Paterna, Spain
| | - Ana Melero
- Department of Pharmacy and Pharmaceutical Technology and Parasitology, Faculty of Pharmacy, University of Valencia, 46100 Burjassot, Spain
| | - Alegría Montoro
- Service of Radiological Protection, Clinical Area of Medical Image, University and Polytechnic La Fe Hospital, 46026 Valencia, Spain
- Biomedical Imaging Research Group GIBI230, Health Research Institute (IISLaFe), University and Polytechnic La Fe Hospital, 46026 Valencia, Spain
| | - Juan F Merino-Torres
- Joint Research Unit on Endocrinology, Nutrition and Clinical Dietetics, Health Research Institute La Fe, University of Valencia, 46026 Valencia, Spain
- Department of Endocrinology and Nutrition, University and Polytechnic La Fe Hospital, 46026 Valencia, Spain
- Department of Medicine, Faculty of Medicine, University of Valencia, 46010 Valencia, Spain
| | - Jose M Soriano
- Food & Health Laboratory, Institute of Materials Science, University of Valencia, 46980 Paterna, Spain
- Joint Research Unit on Endocrinology, Nutrition and Clinical Dietetics, Health Research Institute La Fe, University of Valencia, 46026 Valencia, Spain
| | - Nadia San Onofre
- Food & Health Laboratory, Institute of Materials Science, University of Valencia, 46980 Paterna, Spain
- Department of Community Nursing, Preventive Medicine and Public Health and History of Science, University of Alicante, 03690 Alicante, Spain
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23
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Terranova ML. Prominent Roles and Conflicted Attitudes of Eumelanin in the Living World. Int J Mol Sci 2023; 24:ijms24097783. [PMID: 37175490 PMCID: PMC10178024 DOI: 10.3390/ijms24097783] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2023] [Revised: 04/17/2023] [Accepted: 04/22/2023] [Indexed: 05/15/2023] Open
Abstract
Eumelanin, a macromolecule widespread in all the living world and long appreciated for its protective action against harmful UV radiation, is considered the beneficial component of the melanin family (ευ means good in ancient Greek). This initially limited picture has been rather recently extended and now includes a variety of key functions performed by eumelanin in order to support life also under extreme conditions. A lot of still unexplained aspects characterize this molecule that, in an evolutionary context, survived natural selection. This paper aims to emphasize the unique characteristics and the consequent unusual behaviors of a molecule that still holds the main chemical/physical features detected in fossils dating to the late Carboniferous. In this context, attention is drawn to the duality of roles played by eumelanin, which occasionally reverses its functional processes, switching from an anti-oxidant to a pro-oxidant behavior and implementing therefore harmful effects.
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Affiliation(s)
- Maria Letizia Terranova
- Dipartimento Scienze e Tecnologie Chimiche, Università degli Studi di Roma "Tor Vergata", Via della Ricerca Scientifica, 00133 Roma, Italy
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Prades-Sagarra È, Yaromina A, Dubois LJ. Polyphenols as Potential Protectors against Radiation-Induced Adverse Effects in Patients with Thoracic Cancer. Cancers (Basel) 2023; 15:cancers15092412. [PMID: 37173877 PMCID: PMC10177176 DOI: 10.3390/cancers15092412] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Revised: 04/18/2023] [Accepted: 04/20/2023] [Indexed: 05/15/2023] Open
Abstract
Radiotherapy is one of the standard treatment approaches used against thoracic cancers, occasionally combined with chemotherapy, immunotherapy and molecular targeted therapy. However, these cancers are often not highly sensitive to standard of care treatments, making the use of high dose radiotherapy necessary, which is linked with high rates of radiation-induced adverse effects in healthy tissues of the thorax. These tissues remain therefore dose-limiting factors in radiation oncology despite recent technological advances in treatment planning and delivery of irradiation. Polyphenols are metabolites found in plants that have been suggested to improve the therapeutic window by sensitizing the tumor to radiotherapy, while simultaneously protecting normal cells from therapy-induced damage by preventing DNA damage, as well as having anti-oxidant, anti-inflammatory or immunomodulatory properties. This review focuses on the radioprotective effect of polyphenols and the molecular mechanisms underlying these effects in the normal tissue, especially in the lung, heart and esophagus.
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Affiliation(s)
- Èlia Prades-Sagarra
- The M-Lab, Department of Precision Medicine, GROW-School for Oncology and Reproduction, Maastricht University, 6229 ER Maastricht, The Netherlands
| | - Ala Yaromina
- The M-Lab, Department of Precision Medicine, GROW-School for Oncology and Reproduction, Maastricht University, 6229 ER Maastricht, The Netherlands
| | - Ludwig J Dubois
- The M-Lab, Department of Precision Medicine, GROW-School for Oncology and Reproduction, Maastricht University, 6229 ER Maastricht, The Netherlands
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Tsarkova E, Filippova K, Afanasyeva V, Ermakova O, Kolotova A, Blagodatski A, Ermakov A. A Study on the Planarian Model Confirms the Antioxidant Properties of Tameron against X-ray- and Menadione-Induced Oxidative Stress. Antioxidants (Basel) 2023; 12:antiox12040953. [PMID: 37107327 PMCID: PMC10136237 DOI: 10.3390/antiox12040953] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2023] [Revised: 04/05/2023] [Accepted: 04/14/2023] [Indexed: 04/29/2023] Open
Abstract
Ionizing radiation and radiation-related oxidative stress are two important factors responsible for the death of actively proliferating cells, thus drastically reducing the regeneration capacity of living organisms. Planarian flatworms are freshwater invertebrates that are rich in stem cells called neoblasts and, therefore, present a well-established model for studies on regeneration and the testing of novel antioxidant and radioprotective substances. In this work, we tested an antiviral and antioxidant drug Tameron (Monosodium α-Luminol or 5-amino-2,3-dihydro-1,4-phthalazinedione sodium salt) for its ability to reduce the harm of X-ray- and chemically induced oxidative stress on a planarian model. Our study has revealed the ability of Tameron to effectively protect planarians from oxidative stress while enhancing their regenerative capacity by modulating the expression of neoblast marker genes and NRF-2-controlled oxidative stress response genes.
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Affiliation(s)
- Elena Tsarkova
- Institute of Theoretical and Experimental Biophysics of the Russian Academy of Sciences, 142290 Pushchino, Moscow Region, Russia
- ANO Engineering Physics Institute, Bolshoi Udarny Pereulok, 142210 Serpukhov, Moscow Region, Russia
| | - Kristina Filippova
- Institute of Theoretical and Experimental Biophysics of the Russian Academy of Sciences, 142290 Pushchino, Moscow Region, Russia
- ANO Engineering Physics Institute, Bolshoi Udarny Pereulok, 142210 Serpukhov, Moscow Region, Russia
| | - Vera Afanasyeva
- Institute of Theoretical and Experimental Biophysics of the Russian Academy of Sciences, 142290 Pushchino, Moscow Region, Russia
- ANO Engineering Physics Institute, Bolshoi Udarny Pereulok, 142210 Serpukhov, Moscow Region, Russia
| | - Olga Ermakova
- Institute of Theoretical and Experimental Biophysics of the Russian Academy of Sciences, 142290 Pushchino, Moscow Region, Russia
- ANO Engineering Physics Institute, Bolshoi Udarny Pereulok, 142210 Serpukhov, Moscow Region, Russia
| | - Anastasia Kolotova
- Institute of Theoretical and Experimental Biophysics of the Russian Academy of Sciences, 142290 Pushchino, Moscow Region, Russia
| | - Artem Blagodatski
- Institute of Theoretical and Experimental Biophysics of the Russian Academy of Sciences, 142290 Pushchino, Moscow Region, Russia
| | - Artem Ermakov
- Institute of Theoretical and Experimental Biophysics of the Russian Academy of Sciences, 142290 Pushchino, Moscow Region, Russia
- ANO Engineering Physics Institute, Bolshoi Udarny Pereulok, 142210 Serpukhov, Moscow Region, Russia
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Zhao M, Wang C, Ji C, Liu R, Xie J, Wang Y, Gu Z. Ascidian-Inspired Temperature-Switchable Hydrogels with Antioxidant Fullerenols for Protecting Radiation-Induced Oral Mucositis and Maintaining the Homeostasis of Oral Microbiota. Small 2023:e2206598. [PMID: 36965142 DOI: 10.1002/smll.202206598] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/26/2022] [Revised: 02/04/2023] [Indexed: 06/18/2023]
Abstract
A key characteristic of radiation-induced oral mucositis (RIOM) is oxidative stress mediated by the "reactive oxygen species (ROS) storm" generated from water radiolysis, resulting in severe pathological lesions, accompanied by a disturbance of oral microbiota. Therefore, a sprayable in situ hydrogel loaded with "free radical sponge" fullerenols (FOH) is developed as antioxidant agent for RIOM radioprotection. Inspired by marine organisms, 3,4,5-trihydroxyphenylalanine (TOPA) which is enriched in ascidians is grafted to clinically approved temperature-switchable Pluronic F127 to produce gallic acid (containing the TOPA fragment)-modified Pluronic F127 (MGA) hydrogels to resist the fast loss of FOH via biomimetic adhesion during oral movement and saliva erosion. Based on this, progressive RIOM found in mice is alleviated by treatment of FOH-loaded MGA hydrogels whether pre-irradiation prophylactic administration or post-irradiation therapeutic administration, which contributes to maintaining the homeostasis of oral microbiota. Mechanistically, FOH inhibits cell apoptosis by scavenging radiation-induced excess ROS and up-regulates the inherent enzymatic antioxidants, thereby protecting the proliferation and migration of mucosal epithelial cells. In conclusion, this work not only provides proof-of-principle evidence for the oral radioprotection of FOH by blocking the "ROS storm", but also provides an effective and easy-to-use hydrogel system for mucosal in situ administration.
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Affiliation(s)
- Maoru Zhao
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety and CAS Center for Excellence in Nanoscience, Institute of High Energy Physics and National Center for Nanoscience and Technology, Chinese Academy of Sciences, Beijing, 100049, P. R. China
- Center of Materials Science and Optoelectronics Engineering, College of Materials Science and Optoelectronic Technology, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Chengyan Wang
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety and CAS Center for Excellence in Nanoscience, Institute of High Energy Physics and National Center for Nanoscience and Technology, Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Chao Ji
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety and CAS Center for Excellence in Nanoscience, Institute of High Energy Physics and National Center for Nanoscience and Technology, Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Ruixue Liu
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety and CAS Center for Excellence in Nanoscience, Institute of High Energy Physics and National Center for Nanoscience and Technology, Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Jiani Xie
- School of Food and Biological Engineering, Chengdu University, Chengdu, 610106, P. R. China
| | - Yuguang Wang
- National Engineering Laboratory for Digital and Material Technology of Stomatology, Center of Digital Dentistry, Peking University School and Hospital of Stomatology, Beijing, 100081, P. R. China
| | - Zhanjun Gu
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety and CAS Center for Excellence in Nanoscience, Institute of High Energy Physics and National Center for Nanoscience and Technology, Chinese Academy of Sciences, Beijing, 100049, P. R. China
- Center of Materials Science and Optoelectronics Engineering, College of Materials Science and Optoelectronic Technology, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
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Bao X, Liu X, Wu Q, Ye F, Shi Z, Xu D, Zhang J, Dou Z, Huang G, Zhang H, Sun C. Mitochondrial-Targeted Antioxidant MitoQ-Mediated Autophagy: A Novel Strategy for Precise Radiation Protection. Antioxidants (Basel) 2023; 12:antiox12020453. [PMID: 36830013 PMCID: PMC9952602 DOI: 10.3390/antiox12020453] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Revised: 02/08/2023] [Accepted: 02/09/2023] [Indexed: 02/16/2023] Open
Abstract
Radiotherapy (RT) is one of the most effective cancer treatments. However, successful radiation protection for normal tissue is a clinical challenge. Our previous study observed that MitoQ, a mitochondria-targeted antioxidant, was adsorbed to the inner mitochondrial membrane and remained the cationic moiety in the intermembrane space. The positive charges in MitoQ restrained the activity of respiratory chain complexes and decreased proton production. Therefore, a pseudo-mitochondrial membrane potential (PMMP) was developed via maintenance of exogenous positive charges. This study identified that PMMP constructed by MitoQ could effectively inhibit mitochondrial respiration within normal cells, disrupt energy metabolism, and activate adenosine 5'-monophosphate (AMP)-activated protein kinase (AMPK) signaling to induce autophagy. As such, it could not lead to starvation-induced autophagy among tumor cells due to the different energy phenotypes between normal and tumor cells (normal cells depend on mitochondrial respiration for energy supply, while tumor cells rely on aerobic glycolysis). Therefore, we successfully protected the normal cells from radiation-induced damage without affecting the tumor-killing efficacy of radiation by utilizing selective autophagy. MitoQ-constructed PMMP provides a new therapeutic strategy for specific radiation protection.
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Affiliation(s)
- Xingting Bao
- Department of Medical Physics, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
- Advanced Energy Science and Technology Guangdong Laboratory, Huizhou 516000, China
- Key Laboratory of Heavy Ion Radiation Medicine of Gansu Province, Lanzhou 730000, China
- Key Laboratory of Heavy Ion Radiation Biology and Medicine of Chinese Academy of Sciences, Lanzhou 730000, China
- College of Life Sciences, University of Chinese Academy of Sciences, Beijing 101408, China
| | - Xiongxiong Liu
- Department of Medical Physics, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
- Key Laboratory of Heavy Ion Radiation Medicine of Gansu Province, Lanzhou 730000, China
- Key Laboratory of Heavy Ion Radiation Biology and Medicine of Chinese Academy of Sciences, Lanzhou 730000, China
- College of Life Sciences, University of Chinese Academy of Sciences, Beijing 101408, China
| | - Qingfeng Wu
- Department of Medical Physics, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - Fei Ye
- Department of Medical Physics, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
- Key Laboratory of Heavy Ion Radiation Medicine of Gansu Province, Lanzhou 730000, China
- Key Laboratory of Heavy Ion Radiation Biology and Medicine of Chinese Academy of Sciences, Lanzhou 730000, China
- College of Life Sciences, University of Chinese Academy of Sciences, Beijing 101408, China
| | - Zheng Shi
- Department of Medical Physics, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
- Advanced Energy Science and Technology Guangdong Laboratory, Huizhou 516000, China
- Key Laboratory of Heavy Ion Radiation Medicine of Gansu Province, Lanzhou 730000, China
- Key Laboratory of Heavy Ion Radiation Biology and Medicine of Chinese Academy of Sciences, Lanzhou 730000, China
- College of Life Sciences, University of Chinese Academy of Sciences, Beijing 101408, China
| | - Dan Xu
- Department of Medical Physics, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - Jinhua Zhang
- Department of Medical Physics, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
- Advanced Energy Science and Technology Guangdong Laboratory, Huizhou 516000, China
- Key Laboratory of Heavy Ion Radiation Medicine of Gansu Province, Lanzhou 730000, China
- Key Laboratory of Heavy Ion Radiation Biology and Medicine of Chinese Academy of Sciences, Lanzhou 730000, China
- College of Life Sciences, University of Chinese Academy of Sciences, Beijing 101408, China
| | - Zhihui Dou
- Department of Medical Physics, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
- Advanced Energy Science and Technology Guangdong Laboratory, Huizhou 516000, China
- Key Laboratory of Heavy Ion Radiation Medicine of Gansu Province, Lanzhou 730000, China
- Key Laboratory of Heavy Ion Radiation Biology and Medicine of Chinese Academy of Sciences, Lanzhou 730000, China
- College of Life Sciences, University of Chinese Academy of Sciences, Beijing 101408, China
| | - Guomin Huang
- Department of Medical Physics, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
- Advanced Energy Science and Technology Guangdong Laboratory, Huizhou 516000, China
- Key Laboratory of Heavy Ion Radiation Medicine of Gansu Province, Lanzhou 730000, China
- Key Laboratory of Heavy Ion Radiation Biology and Medicine of Chinese Academy of Sciences, Lanzhou 730000, China
- College of Life Sciences, University of Chinese Academy of Sciences, Beijing 101408, China
| | - Hong Zhang
- Department of Medical Physics, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
- Advanced Energy Science and Technology Guangdong Laboratory, Huizhou 516000, China
- Key Laboratory of Heavy Ion Radiation Medicine of Gansu Province, Lanzhou 730000, China
- Key Laboratory of Heavy Ion Radiation Biology and Medicine of Chinese Academy of Sciences, Lanzhou 730000, China
- College of Life Sciences, University of Chinese Academy of Sciences, Beijing 101408, China
- Correspondence: (H.Z.); (C.S.); Tel.: +86-(931)-519-6126 (H.Z.); +86-(931)-519-6027 (C.S.)
| | - Chao Sun
- Department of Medical Physics, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
- Advanced Energy Science and Technology Guangdong Laboratory, Huizhou 516000, China
- Key Laboratory of Heavy Ion Radiation Medicine of Gansu Province, Lanzhou 730000, China
- Key Laboratory of Heavy Ion Radiation Biology and Medicine of Chinese Academy of Sciences, Lanzhou 730000, China
- College of Life Sciences, University of Chinese Academy of Sciences, Beijing 101408, China
- Correspondence: (H.Z.); (C.S.); Tel.: +86-(931)-519-6126 (H.Z.); +86-(931)-519-6027 (C.S.)
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28
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Freyche S, Vazquez L. [Intraoral radiography: qualitative study]. Swiss Dent J 2023; 133:89-96. [PMID: 36723432] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
When taking intraoral X-rays with a round collimator, the salivary glands and the thyroid gland are exposed to ionizing radiation. The rectangular collimator reduces the patient's radiation dose. This study aims to analyze the impact of the rectangular collimator on the quality of intraoral X-rays taken by students of the University Clinics of Dental Medicine (Geneva, Switzerland). Intraoral X-rays, performed by 8 students with digital intraoral phosphor plates, were collected and a quality score was assigned to each X-ray. A total of 130 intraoral radiographs were analyzed. Half of the radiographs were taken with a rectangular collimator and 24.6% (32/130) were bitewings. The mean quality score of bitewings taken with or without a collimator was 11 ± 1.8 and 10.3 ± 0.9, respectively. The mean quality score of apical X-rays taken with or without collimator was 11.6 ± 1.0 and 11.5 ± 2.1, respectively. X-rays taken with a rectangular collimator were of excellent or sufficient diagnostic quality for 95% of the bitewings and 100% of the periapical radiographs. This quality control study showing that students perform quality intraoral X-rays with a rectangular collimator could encourage clinicians to use this device as ameans of radiation protection in their daily practice.
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Affiliation(s)
- Sarah Freyche
- Clinique universitaire de médecine dentaire, Faculté de médecine, Université de Genève, Suisse
| | - Lydia Vazquez
- Département de réhabilitation oro-faciale, Unité de radiologie dentaire, Clinique universitaire de médecine dentaire, Faculté de médecine, Université de Genève, Suisse
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Atilgan HI, Akbulut A, Yazihan N, Yumusak N, Singar E, Koca G, Korkmaz M. The Cytokines-Directed Roles of Spirulina for Radioprotection of Lacrimal Gland. Ocul Immunol Inflamm 2023; 31:271-276. [PMID: 35050831 DOI: 10.1080/09273948.2022.2026409] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
PURPOSE To evaluate the radioprotective effect of spirulina (SP) on the lacrimal glands after RAI treatment. METHODS A total of 30 rats were separated into control, RAI and SP group. The radioprotective effect of SP on lacrimal glands was evaluated with histopathological and cytopathological analysis. Lacrimal glands were analyzed for tumor necrosis factor alpha (TNF-α), interleukin-2 (IL-2), IL-4, IL-6, IL-10, nuclear factor-kappa B (NF-κB), total oxidant status (TOS) and total antioxidant capacity (TAC) levels. RESULTS RAI increased TNF-α (p = .001), IL-6 (p = .018), and NF-κB levels (p < .0005). Following the administration of SP, TNF-α (p < .0005), IL-4 (p = .026), and IL-6 (p = .006) levels decreased. RAI decreased the TAC levels (p = .001), and co-administration of SP increased the TAC level, but was not statistically significant. SP decreased the TOS level after RAI (p = .022) . CONCLUSIONS SP protects lacrimal glands from RAI-induced damage.
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Affiliation(s)
- H I Atilgan
- Faculty of Medicine, Department of Nuclear Medicine, Hatay Mustafa Kemal University, Hatay, Turkey
| | - A Akbulut
- Ankara Training and Research Hospital, Department of Nuclear Medicine, University of Health Sciences, Ankara, Turkey
| | - N Yazihan
- Faculty of Medicine, Department of Pathophysiology, Ankara University, Ankara, Turkey
| | - N Yumusak
- Faculty of Veterinary Medicine, Department of Pathology, Harran University, Sanliurfa, Turkey
| | - E Singar
- Ankara Training and Research Hospital, Department of Ophthalmology, University of Health Sciences, Ankara, Turkey
| | - G Koca
- Ankara Training and Research Hospital, Department of Nuclear Medicine, University of Health Sciences, Ankara, Turkey
| | - M Korkmaz
- Ankara Training and Research Hospital, Department of Nuclear Medicine, University of Health Sciences, Ankara, Turkey
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Salazar‐Carballo PA, López‐Pérez M, Martín‐González ME, Hernández‐Suarez F, Martín‐Luis MC. Radon Dynamics and Effective Dose Estimation in a Touristic Volcanic Cave: La Cueva del Viento, Tenerife (Canary Islands, Spain). Geohealth 2023; 7:e2022GH000704. [PMID: 36789206 PMCID: PMC9911345 DOI: 10.1029/2022gh000704] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/13/2022] [Revised: 09/28/2022] [Accepted: 10/03/2022] [Indexed: 05/06/2023]
Abstract
La Cueva del Viento is a volcanic lava tube located in Tenerife Island (Canary Islands, Spain). Its touristic section, 180 m long, receives more than 28,200 visitants each year. According to the European and Spanish legislation, a radon monitoring program is required to minimize the radon exposition of workers, tourists, and cavers. In this work, we studied the radon concentration dynamics in the touristic section of the cave for ca. 1 year, using both passive and active radon detectors. Pluviometry and external air temperature played an important role in the seasonal and daily variations of indoor radon concentrations. Daily fluctuations during the dry season were analyzed using time series (Box-Jenkins methodology) and frequency analysis (Fourier and Wavelet transforms) methods. The experimental radon time-series was well-fitted using a seasonal autoregressive integrated moving average model: Seasonal Auto-Regressive Integrated Moving Average (2,0,1) (2,1,0)24, and its value, in a short-time window (ca. 1 week) was conveniently forecasted. Finally, this work revealed that the annual effective doses received, during the observation period (1 year), by the touristic guides and visitors was ca. 2 mSv/yr and 4 μSv/hr, respectively. We concluded that the touristic exploitation of La Cueva del Viento is safe for both tourists and guides. However, based on our results, La Cueva del Viento had to be classified as a "Monitoring zone" and a regular monitoring program should be implemented.
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Affiliation(s)
- Pedro A. Salazar‐Carballo
- Departamento de Medicina Física y FarmacologíaFacultad de Ciencias de la SaludUniversidad de La LagunaSan Cristóbal de La LagunaSpain
- Laboratorio de Física Médica y Radioactividad AmbientalSEGAIUniversidad de La LagunaSan Cristóbal de La LagunaSpain
| | - María López‐Pérez
- Laboratorio de Física Médica y Radioactividad AmbientalSEGAIUniversidad de La LagunaSan Cristóbal de La LagunaSpain
| | | | - Francisco Hernández‐Suarez
- Laboratorio de Física Médica y Radioactividad AmbientalSEGAIUniversidad de La LagunaSan Cristóbal de La LagunaSpain
| | - M. Candelaria Martín‐Luis
- Departamento de Biología Animal, Edafología y GeologíaFacultad de CienciasUniversidad de La LagunaSan Cristóbal de La LagunaSpain
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Pinch M, Bendzus-Mendoza H, Hansen IA. Transcriptomics analysis of ethanol treatment of male Aedes aegypti reveals a small set of putative radioprotective genes. Front Physiol 2023; 14:1120408. [PMID: 36793417 PMCID: PMC9922702 DOI: 10.3389/fphys.2023.1120408] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2022] [Accepted: 01/16/2023] [Indexed: 02/01/2023] Open
Abstract
Introduction: Sterile Insect Technique (SIT) is based on releasing sterilized male insects into wild insect populations to compete for mating with wild females. Wild females mated with sterile males will produce inviable eggs, leading to a decline in population of that insect species. Sterilization with ionizing radiation (x-rays) is a commonly used mechanism for sterilization of males. Since irradiation can cause damage to both, somatic and germ cells, and can severely reduce the competitiveness of sterilized males relative to wild males, means to minimize the detrimental effects of radiation are required to produce sterile, competitive males for release. In an earlier study, we identified ethanol as a functional radioprotector in mosquitoes. Methods: Here, we used Illumina RNA-seq to profile changes in gene expression of male Aedes aegypti mosquitoes fed on 5% ethanol for 48 hours prior to receiving a sterilizing x-ray dose, compared to males fed on water prior to sterilization. Results: RNA-seq revealed a robust activation of DNA repair genes in both ethanol-fed and water-fed males after irradiation, but surprisingly few differences in gene expression between ethanol-fed and water-fed males regardless of radiation treatment. Discussion: While differences in gene expression due to ethanol exposure were minimal, we identified a small group of genes that may prime ethanol-fed mosquitoes for improved survivability in response to sterilizing radiation.
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Affiliation(s)
- Matthew Pinch
- Department of Biology, New Mexico State University, Las Cruces, NM, United States
| | - Harley Bendzus-Mendoza
- Department of Computer Science, New Mexico State University, Las Cruces, NM, United States
| | - Immo A. Hansen
- Department of Biology, New Mexico State University, Las Cruces, NM, United States
- Institute of Applied Biosciences, New Mexico State University, Las Cruces, NM, United States
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Filippova KO, Ermakov AM, Popov AL, Ermakova ON, Blagodatsky AS, Chukavin NN, Shcherbakov AB, Baranchikov AE, Ivanov VK. Mitogen-like Cerium-Based Nanoparticles Protect Schmidtea mediterranea against Severe Doses of X-rays. Int J Mol Sci 2023; 24:ijms24021241. [PMID: 36674757 PMCID: PMC9864839 DOI: 10.3390/ijms24021241] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Revised: 12/13/2022] [Accepted: 01/04/2023] [Indexed: 01/11/2023] Open
Abstract
Novel radioprotectors are strongly demanded due to their numerous applications in radiobiology and biomedicine, e.g., for facilitating the remedy after cancer radiotherapy. Currently, cerium-containing nanomaterials are regarded as promising inorganic radioprotectors due to their unrivaled antioxidant activity based on their ability to mimic the action of natural redox enzymes like catalase and superoxide dismutase and to neutralize reactive oxygen species (ROS), which are by far the main damaging factors of ionizing radiation. The freshwater planarian flatworms are considered a promising system for testing new radioprotectors, due to the high regenerative potential of these species and an excessive amount of proliferating stem cells (neoblasts) in their bodies. Using planarian Schmidtea mediterranea, we tested CeO2 nanoparticles, well known for their antioxidant activity, along with much less studied CeF3 nanoparticles, for their radioprotective potential. In addition, both CeO2 and CeF3 nanoparticles improve planarian head blastema regeneration after ionizing irradiation by enhancing blastema growth, increasing the number of mitoses and neoblasts' survival, and modulating the expression of genes responsible for the proliferation and differentiation of neoblasts. The CeO2 nanoparticles' action stems directly from their redox activity as ROS scavengers, while the CeF3 nanoparticles' action is mediated by overexpression of "wound-induced genes" and neoblast- and stem cell-regulating genes.
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Affiliation(s)
- Kristina O. Filippova
- Institute of Theoretical and Experimental Biophysics, Russian Academy of Sciences, Pushchino 142290, Russia
| | - Artem M. Ermakov
- Institute of Theoretical and Experimental Biophysics, Russian Academy of Sciences, Pushchino 142290, Russia
- Moscow Region Pedagogical State University, Moscow 141014, Russia
| | - Anton L. Popov
- Institute of Theoretical and Experimental Biophysics, Russian Academy of Sciences, Pushchino 142290, Russia
- Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Moscow 119991, Russia
- Correspondence:
| | - Olga N. Ermakova
- Institute of Theoretical and Experimental Biophysics, Russian Academy of Sciences, Pushchino 142290, Russia
| | - Artem S. Blagodatsky
- Institute of Theoretical and Experimental Biophysics, Russian Academy of Sciences, Pushchino 142290, Russia
| | - Nikita N. Chukavin
- Institute of Theoretical and Experimental Biophysics, Russian Academy of Sciences, Pushchino 142290, Russia
- Moscow Region Pedagogical State University, Moscow 141014, Russia
| | - Alexander B. Shcherbakov
- Institute of Microbiology and Virology, National Academy of Sciences of Ukraine, 03680 Kyiv, Ukraine
| | - Alexander E. Baranchikov
- Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Moscow 119991, Russia
| | - Vladimir K. Ivanov
- Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Moscow 119991, Russia
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Dobrzyńska MM, Gajowik A. Effects of genistein supplemented before or after irradiation on DNA injury in human lymphocytes in vitro. Rocz Panstw Zakl Hig 2023; 74:439-446. [PMID: 38117139 DOI: 10.32394/rpzh.2023.0280] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2023] Open
Abstract
Background Ionizing radiation (IR) carry adequate energy to ionize or remove electrons from an atom. Particles interact with water to produce reactive oxygen species (ROS). Genistein (GEN) is a naturally occurring phytoestrogen and the basic isoflavonoid in soybeans and soybean-enriched products and is believed to have the strongest antioxidant activity. Objective The study aimed at the investigation if application of GEN at different time prior or past irradiation may ameliorate or reduce injury of DNA in human lymphocytes. Material and Methods The isolated lymphocytes were exposed to X-irradiation (0.5; 1 Gy). GEN (1 µM/ml; 10 µM/ ml) was appended to attempts at various times prior or past irradiation (1 h prior, immediately prior, immediately past, 1 h past). We joined each X-rays dose with each GEN dose. After 1h of incubation DNA damages were examined using Comet assay. Results Combination of 1 µM/ml of GEN given 1 h before irradiation with low or high dose markedly decreased induced by irradiation DNA injury. Higher dose of GEN applied immediately before or after irradiation markedly extended the frequency of DNA injury generated by irradiation. The result of application 1 µM/ml GEN 1 h after irradiation was not significantly different compared to control. The effect of 1 Gy + 10 µM/ml GEN was not significantly lower compared to each agent alone. Conclusions Only a very low concentration of GEN applied before irradiation, may be considered as a potential radiomitigator/radioprotector. High doses of GEN work as a radiosentitizer and may potent the effects of radiotherapy.
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Affiliation(s)
- Małgorzata M Dobrzyńska
- National Institute of Public Health NIH - National Research Institute, Department of Radiation Hygiene and Radiobiology, 24 Chocimska Street, 00-791 Warsaw, Poland
| | - Aneta Gajowik
- National Institute of Public Health NIH - National Research Institute, Department of Radiation Hygiene and Radiobiology, 24 Chocimska Street, 00-791 Warsaw, Poland
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Zivkovic Radojevic M, Milosavljevic N, Miladinovic TB, Janković S, Folic M. Review of compounds that exhibit radioprotective and/or mitigatory effects after application of diagnostic or therapeutic ionizing radiation. Int J Radiat Biol 2023; 99:594-603. [PMID: 35930681 DOI: 10.1080/09553002.2022.2110308] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
Abstract
PURPOSE Exposure to ionizing radiation can be accidental or for medical purposes. Analyzes of the frequency of radiation damage in the general population, it has been determined that by far the most common are those that occur as a result of diagnostic or therapeutic procedures. Damage caused by radiation, either accidentally or for therapeutic purposes, can be reduced by the use of radioprotectors, mitigators or other therapeutic agents. A detailed research of the available literature shows that there is little systematized data of potentially radioprotective and/or mitigating effects of drugs from the personal therapy of patients during the application of therapeutic ionizing radiation. The aim of this paper is to present review of compounds, especially personal therapy drugs, that exhibit radioprotective and/or mitigating effects after the application of diagnostic or therapeutic ionizing radiation. CONCLUSIONS Given the widespread use of ionizing radiation for diagnostic and therapeutic purposes, there is a clear need to create a strategy and recommendations of relevant institutions for the use of radioprotectors and mitigators in everyday clinical practice, with individual evaluation of the patient's condition and selection of the compounds that will show the greatest benefit in terms of radioprotection.
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Affiliation(s)
| | - Neda Milosavljevic
- Centre for Radiation Oncology, University Clinical Centre Kragujevac, Kragujevac, Serbia
| | - Tatjana B Miladinovic
- Department of Science, Institute for Information Technologies, University of Kragujevac, Kragujevac, Serbia
| | - Slobodan Janković
- Faculty of Medical Sciences, University of Kragujevac, Kragujevac, Serbia
- Clinical Pharmacology Department, University Clinical Centre Kragujevac, Kragujevac, Serbia
| | - Marko Folic
- Faculty of Medical Sciences, University of Kragujevac, Kragujevac, Serbia
- Clinical Pharmacology Department, University Clinical Centre Kragujevac, Kragujevac, Serbia
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35
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Kolesnik OV, Rozhko TV, Kudryasheva NS. Marine Bacteria under Low-Intensity Radioactive Exposure: Model Experiments. Int J Mol Sci 2022; 24:ijms24010410. [PMID: 36613854 PMCID: PMC9820739 DOI: 10.3390/ijms24010410] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2022] [Revised: 12/15/2022] [Accepted: 12/19/2022] [Indexed: 12/28/2022] Open
Abstract
Radioactive contaminants create problems all over world, involving marine ecosystems, with their ecological importance increasing in the future. The review focuses on bioeffects of a series of alpha and beta emitting radioisotopes (americium-241, uranium-(235 + 238), thorium-232, and tritium) and gamma radiation. Low-intensity exposures are under special consideration. Great attention has been paid to luminous marine bacteria as representatives of marine microorganisms and a conventional bioassay system. This bioassay uses bacterial bioluminescence intensity as the main testing physiological parameter; currently, it is widely applied due to its simplicity and sensitivity. Dependences of the bacterial luminescence response on the exposure time and irradiation intensity were reviewed, and applicability of hormetic or threshold models was discussed. A number of aspects of molecular intracellular processes under exposure to low-intensity radiation were analyzed: (a) changes in the rates of enzymatic processes in bacteria with the bioluminescent system of coupled enzymatic reactions of NADH:FMN-oxidoreductase and bacterial luciferase taken as an example; (b) consumption of an intracellular reducer, NADH; (c) active role of reactive oxygen species; (d) repairing of the DNA damage. The results presented confirm the function of humic substances as natural radioprotectors.
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Affiliation(s)
- Olga V. Kolesnik
- Institute of Biophysics SB RAS, Federal Research Center ‘Krasnoyarsk Science Center SB RAS’, 660036 Krasnoyarsk, Russia
- Biophysics Department, Siberian Federal University, 660041 Krasnoyarsk, Russia
| | - Tatiana V. Rozhko
- FSBEI HE V.F. Voino-Yasenetsky KrasSMU MOH, 660022 Krasnoyarsk, Russia
| | - Nadezhda S. Kudryasheva
- Institute of Biophysics SB RAS, Federal Research Center ‘Krasnoyarsk Science Center SB RAS’, 660036 Krasnoyarsk, Russia
- Biophysics Department, Siberian Federal University, 660041 Krasnoyarsk, Russia
- Correspondence:
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36
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Sharapov MG, Goncharov RG, Parfenyuk SB, Glushkova OV, Novoselov VI. The Role of Phospholipase Activity of Peroxiredoxin 6 in Its Transmembrane Transport and Protective Properties. Int J Mol Sci 2022; 23:ijms232315265. [PMID: 36499590 PMCID: PMC9738660 DOI: 10.3390/ijms232315265] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2022] [Revised: 11/24/2022] [Accepted: 12/01/2022] [Indexed: 12/12/2022] Open
Abstract
Peroxiredoxin 6 (Prdx6) is a multifunctional eukaryotic antioxidant enzyme. Mammalian Prdx6 possesses peroxidase activity against a wide range of organic and inorganic hydroperoxides, as well as exhibits phospholipase A2 (aiPLA2) activity, which plays an important role in the reduction of oxidized phospholipids and cell membrane remodeling. Exogenous Prdx6 has recently been shown to be able to penetrate inside the cell. We hypothesized that this entry may be due to the phospholipase activity of Prdx6. Experiments using exogenous Prdx6 in three cell lines (3T3, A549, RAW 264.7) demonstrated that it is the phospholipase activity that promotes its penetration into the cell. Overoxidation of Prdx6 led to a suppression of the peroxidase activity and a 3-to-4-fold growth of aiPLA2, which enhanced the efficiency of its transmembrane transport into the cells by up to 15 times. A mutant form of Prdx6-S32A with an inactivated phospholipase center turned out to be unable to enter the cells in both the reduced and oxidized state of the peroxidase active center. Previously, we have shown that exogenous Prdx6 has a significant radioprotective action. However, the role of phospholipase activity in the radioprotective effects of Prdx6 remained unstudied. Trials with the mutant Prdx6-S32A form, with the use of a total irradiation model in mice, showed a nearly 50% reduction of the radioprotective effect upon aiPLA2 loss. Such a significant decrease in the radioprotective action may be due to the inability of Prdx6-S32A to penetrate animal cells, which prevents its reduction by the natural intracellular reducing agent glutathione S-transferase (πGST) and lowers the efficiency of elimination of peroxides formed from the effect of ionizing radiation. Thus, phospholipase activity may play an important role in the reduction of oxidized Prdx6 and manifestation of its antioxidant properties.
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Grebowski J, Kazmierska-Grebowska P, Cichon N, Konarska A, Wolszczak M, Litwinienko G. Fullerenol C 60(OH) 36 Protects the Antioxidant Enzymes in Human Erythrocytes against Oxidative Damage Induced by High-Energy Electrons. Int J Mol Sci 2022; 23:ijms231810939. [PMID: 36142851 PMCID: PMC9502585 DOI: 10.3390/ijms231810939] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2022] [Revised: 09/13/2022] [Accepted: 09/15/2022] [Indexed: 11/16/2022] Open
Abstract
Ionizing radiation (IR) can pass through the human body easily, potentially causing severe damage to all biocomponents, which is associated with increasing oxidative stress. IR is employed in radiotherapy; however, in order to increase safety, it is necessary to minimize side effects through the use of radioprotectors. Water-soluble derivatives of fullerene exhibit antiradical and antioxidant properties, and these compounds are regarded as potential candidates for radioprotectors. We examined the ability of fullerenol C60(OH)36 to protect human erythrocytes, including the protection of the erythrocytal antioxidant system against high-energy electrons. Human erythrocytes irradiated with high-energy [6 MeV] electrons were treated with C60(OH)36 (150 µg/mL), incubated and haemolyzed. The radioprotective properties of fullerenol were determined by examining the antioxidant enzymes activity in the hemolysate, the concentration of -SH groups, as well as by determining erythrocyte microviscosity. The irradiation of erythrocytes (650 and 1300 Gy) reduces the number of thiol groups; however, an attenuation of this harmful effect is observed (p < 0.05) in the presence of C60(OH)36. Although no significant effect of fullerenol was recorded on catalase activity, which was preserved in both control and test samples, a more active protection of other enzymes was evident. An irradiation-induced decrease in the activity of glutathione peroxidase and glutathione reductase became an increase in the activity of those two enzymes in samples irradiated in the presence of C60(OH)36 (p < 0.05 and p < 0.05, respectively). The fourth studied enzyme, glutathione transferase, decreased (p < 0.05) its activity in the irradiated hemolysate treated with C60(OH)36, thus, indicating a lower level of ROS in the system. However, the interaction of fullerenol with the active centre of the enzyme cannot be excluded. We also noticed that radiation caused a dose-dependent decrease in the erythrocyte microviscosity, and the presence of C60(OH)36 reduced this effect (p < 0.05). Overall, we point to the radioprotective effect of C60(OH)36 manifested as the protection of the antioxidant enzymes of human erythrocytes against IR-induced damage, which has not been the subject of intense research so far.
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Affiliation(s)
- Jacek Grebowski
- Department of Molecular Biophysics, Faculty of Biology and Environmental Protection, University of Lodz, Pomorska 141/143, 90-236 Lodz, Poland
- The Military Medical Training Center, 6-Sierpnia 92, 90-646 Lodz, Poland
- Correspondence:
| | - Paulina Kazmierska-Grebowska
- Department of Neurobiology, Faculty of Biology and Environmental Protection, University of Lodz, Pomorska 141/143, 90-236 Lodz, Poland
| | - Natalia Cichon
- Biohazard Prevention Centre, Faculty of Biology and Environmental Protection, University of Lodz, Pomorska 141/143, 90-236 Lodz, Poland
| | - Anna Konarska
- Institute of Applied Radiation Chemistry, Technical University of Lodz, Wroblewskiego 15, 93-590 Lodz, Poland
| | - Marian Wolszczak
- Institute of Applied Radiation Chemistry, Technical University of Lodz, Wroblewskiego 15, 93-590 Lodz, Poland
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Bouchiat L, Faroux L, Chabert JP, Mauran P, Blanpain T, Metz D, Lesaffre F. Transseptal versus retrograde approach for ablation of left-sided accessory pathways: impact on radiation exposure. J Radiol Prot 2022; 42:031509. [PMID: 35901783 DOI: 10.1088/1361-6498/ac84e5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/02/2022] [Accepted: 07/28/2022] [Indexed: 06/15/2023]
Abstract
Management of left-sided accessory pathways (APs) is based on catheter ablation through an antegrade or retrograde approach. Both are safe and effective but are associated with exposure to x-rays; however, recipients of ablation are generally young. We sought to evaluate the impact of the approach chosen on dose-area product (DAP). A total of 95 patients who underwent radiofrequency ablation of a left-sided AP between January 2011 and January 2020 were included. The primary endpoint was the radiation dose received by the patient. Secondary endpoints were procedural success and complication and recurrence rates. The mean age of the study population was 34.3 ± 16.6 years. The antegrade transseptal approach was used in 63.5% of cases. By multivariate analysis, the antegrade transseptal approach was associated with a 53% reduction in DAP (p< 0.001). The radiation dose received was also significantly associated with body mass index and total fluoroscopy time (p< 0.001). There was no significant difference in other secondary endpoints between approaches. The use of an antegrade transseptal approach is associated with a significant reduction in DAP compared with the retrograde approach, and procedural success and complication and recurrence rates are similar.
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Affiliation(s)
| | - Laurent Faroux
- Department of Cardiology, Reims University Hospital, Reims, France
- EA3801 HERVI, SFR CAP Santé, Université Reims Champagne Ardenne, Reims, France
| | | | - Pierre Mauran
- Pediatric and Congenital Cardiology Unit, American Memory Hospital, Reims, France
| | - Thierry Blanpain
- Department of Cardiology, Reims University Hospital, Reims, France
| | - Damien Metz
- Department of Cardiology, Reims University Hospital, Reims, France
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Pacifico S, Bláha P, Faramarzi S, Fede F, Michaličková K, Piccolella S, Ricciardi V, Manti L. Differential Radiomodulating Action of Olea europaea L. cv. Caiazzana Leaf Extract on Human Normal and Cancer Cells: A Joint Chemical and Radiobiological Approach. Antioxidants (Basel) 2022; 11:antiox11081603. [PMID: 36009322 PMCID: PMC9404970 DOI: 10.3390/antiox11081603] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2022] [Revised: 08/11/2022] [Accepted: 08/16/2022] [Indexed: 11/16/2022] Open
Abstract
The identification of a natural compound with selectively differential radiomodulating activity would arguably represent a valuable asset in the striving quest for widening the therapeutic window in cancer radiotherapy (RT). To this end, we fully characterized the chemical profile of olive tree leaf polyphenols from the Caiazzana cultivar (OLC), autochthonous to the Campania region (Italy), by ultra-high-performance liquid chromatography–high-resolution mass spectrometry (UHPLC-HR-MS). Oleacein was the most abundant molecule in the OLC. Two normal and two cancer cells lines were X-ray-irradiated following 24-h treatment with the same concentration of the obtained crude extract and were assessed for their radioresponse in terms of micronucleus (MN) induction and, for one of the normal cell lines, of premature senescence (PS). Irradiation of pre-treated normal cells in the presence of the OLC reduced the frequency of radiation-induced MN and the onset of PS. Conversely, the genotoxic action of ionising radiation was exacerbated in cancer cells under the same experimental conditions. To our knowledge, this is the first report on the dual action of a polyphenol-rich olive leaf extract on radiation-induced damage. If further confirmed, these findings may be pre-clinically relevant and point to a substance that may potentially counteract cancer radioresistance while reducing RT-associated normal tissue toxicity.
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Affiliation(s)
- Severina Pacifico
- Dipartimento di Scienze e Tecnologie Ambientali Biologiche e Farmaceutiche, Università della Campania “Luigi Vanvitelli”, 81100 Caserta, Italy
- Istituto Nazionale di Fisica Nucleare-Sezione di Napoli, 80126 Napoli, Italy
| | - Pavel Bláha
- Istituto Nazionale di Fisica Nucleare-Sezione di Napoli, 80126 Napoli, Italy
| | - Shadab Faramarzi
- Department of Plant Production and Genetics, Faculty of Agriculture, Razi University, Kermanshah 67149-67346, Iran
| | - Francesca Fede
- Dipartimento di Fisica “E. Pancini”, Università degli Studi di Napoli Federico II, 80126 Napoli, Italy
| | - Katarina Michaličková
- Istituto Nazionale di Fisica Nucleare-Sezione di Napoli, 80126 Napoli, Italy
- Dipartimento di Fisica “E. Pancini”, Università degli Studi di Napoli Federico II, 80126 Napoli, Italy
| | - Simona Piccolella
- Dipartimento di Scienze e Tecnologie Ambientali Biologiche e Farmaceutiche, Università della Campania “Luigi Vanvitelli”, 81100 Caserta, Italy
- Istituto Nazionale di Fisica Nucleare-Sezione di Napoli, 80126 Napoli, Italy
| | - Valerio Ricciardi
- Istituto Nazionale di Fisica Nucleare-Sezione di Napoli, 80126 Napoli, Italy
| | - Lorenzo Manti
- Istituto Nazionale di Fisica Nucleare-Sezione di Napoli, 80126 Napoli, Italy
- Dipartimento di Fisica “E. Pancini”, Università degli Studi di Napoli Federico II, 80126 Napoli, Italy
- Correspondence:
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40
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Hamade DF, Espinal A, Yu J, Leibowitz BJ, Fisher R, Hou W, Shields D, van Pijkeren JP, Mukherjee A, Epperly MW, Vlad A, Coffman L, Wang H, Huq MS, Patel R, Huang J, Greenberger JS. Lactobacillus reuteri Releasing IL-22 (LR-IL-22) Facilitates Intestinal Radioprotection for Whole-Abdomen Irradiation (WAI) of Ovarian Cancer. Radiat Res 2022; 198:89-105. [PMID: 35446961 PMCID: PMC9278541 DOI: 10.1667/rade-21-00224.1] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Accepted: 03/28/2022] [Indexed: 12/13/2022]
Abstract
Oral administration (gavage) of a second-generation probiotic, Lactobacillus reuteri (L. reuteri), that releases interleukin-22 (LR-IL-22) at 24 h after total-body irradiation (TBI) mitigates damage to the intestine. We determined that LR-IL-22 also mitigates partial-body irradiation (PBI) and whole-abdomen irradiation (WAI). Irradiation can be an effective treatment for ovarian cancer, but its use is limited by intestinal toxicity. Strategies to mitigate toxicity are important and can revitalize this modality to treat ovarian cancer. In the present studies, we evaluated whether LR-IL-22 facilitates fractionated WAI in female C57BL/6 mice with disseminated ovarian cancer given a single fraction of either 15.75 Gy or 19.75 Gy or 4 daily fractions of 6 Gy or 6.5 Gy. Mice receiving single or multiple administrations of LR-IL-22 during WAI showed improved intestinal barrier integrity (P = 0.0167), reduced levels of radiation-induced intestinal cytokines including KC/CXCL1 (P = 0.002) and IFN-γ (P = 0.0024), and reduced levels of plasma, Eotaxin/CCL11 (P = 0.0088). LR-IL-22 significantly preserved the numbers of Lgr5+GFP+ intestinal stem cells (P = 0.0010) and improved survival (P < 0.0343). Female C57BL/6MUC-1 mice with widespread abdominal syngeneic 2F8cis ovarian cancer that received LR-IL-22 during 6.5 Gy WAI in 4 fractions had reduced tumor burden, less intestinal toxicity, and improved 30-day survival. Furthermore, LR-IL-22 facilitated WAI when added to Paclitaxel and Carboplatin chemotherapy and further increased survival. Oral administration (gavage) of LR-IL-22 is a potentially valuable intestinal radioprotector, which can facilitate therapeutic WAI for widespread intra-abdominal ovarian cancer.
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Affiliation(s)
- Diala F. Hamade
- Department of Radiation Oncology, UPMC Hillman Cancer Center, Pittsburgh, PA 15232
| | - Alexis Espinal
- Department of Radiation Oncology, UPMC Hillman Cancer Center, Pittsburgh, PA 15232
| | - Jian Yu
- Department of Pathology, University of Pittsburgh, Pittsburgh, PA 15260
| | | | - Renee Fisher
- Department of Radiation Oncology, UPMC Hillman Cancer Center, Pittsburgh, PA 15232
| | - Wen Hou
- Department of Radiation Oncology, UPMC Hillman Cancer Center, Pittsburgh, PA 15232
| | - Donna Shields
- Department of Radiation Oncology, UPMC Hillman Cancer Center, Pittsburgh, PA 15232
| | | | - Amitava Mukherjee
- Department of Radiation Oncology, UPMC Hillman Cancer Center, Pittsburgh, PA 15232
| | - Michael W. Epperly
- Department of Radiation Oncology, UPMC Hillman Cancer Center, Pittsburgh, PA 15232
| | - Anda Vlad
- Department of OB/Gyn and Reproductive Sciences, University of Pittsburgh, Pittsburgh, PA 15260
| | - Lan Coffman
- Department of Medicine, University of Pittsburgh, Pittsburgh, PA 15260
| | - Hong Wang
- Department of Biostatistics, University of Pittsburgh, Pittsburgh, PA 15260
| | - M. Saiful Huq
- Department of Radiation Oncology, UPMC Hillman Cancer Center, Pittsburgh, PA 15232
| | - Ravi Patel
- Department of Radiation Oncology, UPMC Hillman Cancer Center, Pittsburgh, PA 15232
| | - Jason Huang
- Department of Radiation Oncology, UPMC Hillman Cancer Center, Pittsburgh, PA 15232
| | - Joel S. Greenberger
- Department of Radiation Oncology, UPMC Hillman Cancer Center, Pittsburgh, PA 15232
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Espinal A, Epperly MW, Mukherjee A, Fisher R, Shields D, Wang H, Huq MS, Hamade DF, Vlad AM, Coffman L, Buckanovich R, Yu J, Leibowitz BJ, van Pijkeren JP, Patel RB, Stolz D, Watkins S, Ejaz A, Greenberger JS. Intestinal Radiation Protection and Mitigation by Second-Generation Probiotic Lactobacillus-reuteri Engineered to Deliver Interleukin-22. Int J Mol Sci 2022; 23:5616. [PMID: 35628427 PMCID: PMC9145862 DOI: 10.3390/ijms23105616] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Revised: 05/10/2022] [Accepted: 05/12/2022] [Indexed: 12/13/2022] Open
Abstract
(1) Background: The systemic administration of therapeutic agents to the intestine including cytokines, such as Interleukin-22 (IL-22), is compromised by damage to the microvasculature 24 hrs after total body irradiation (TBI). At that time, there is significant death of intestinal microvascular endothelial cells and destruction of the lamina propria, which limits drug delivery through the circulation, thus reducing the capacity of therapeutics to stabilize the numbers of Lgr5+ intestinal crypt stem cells and their progeny, and improve survival. By its direct action on intestinal stem cells and their villus regeneration capacity, IL-22 is both an ionizing irradiation protector and mitigator. (2) Methods: To improve delivery of IL-22 to the irradiated intestine, we gavaged Lactobacillus-reuteri as a platform for the second-generation probiotic Lactobacillus-reuteri-Interleukin-22 (LR-IL-22). (3) Results: There was effective radiation mitigation by gavage of LR-IL-22 at 24 h after intestinal irradiation. Multiple biomarkers of radiation damage to the intestine, immune system and bone marrow were improved by LR-IL-22 compared to the gavage of control LR or intraperitoneal injection of IL-22 protein. (4) Conclusions: Oral administration of LR-IL-22 is an effective protector and mitigator of intestinal irradiation damage.
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Affiliation(s)
- Alexis Espinal
- Department of Radiation Oncology, UPMC Hillman Cancer Center, University of Pittsburgh, Pittsburgh, PA 15232, USA; (A.E.); (M.W.E.); (A.M.); (R.F.); shieldsd+@pitt.edu (D.S.); (M.S.H.); (D.F.H.); (R.B.P.)
| | - Michael W. Epperly
- Department of Radiation Oncology, UPMC Hillman Cancer Center, University of Pittsburgh, Pittsburgh, PA 15232, USA; (A.E.); (M.W.E.); (A.M.); (R.F.); shieldsd+@pitt.edu (D.S.); (M.S.H.); (D.F.H.); (R.B.P.)
| | - Amitava Mukherjee
- Department of Radiation Oncology, UPMC Hillman Cancer Center, University of Pittsburgh, Pittsburgh, PA 15232, USA; (A.E.); (M.W.E.); (A.M.); (R.F.); shieldsd+@pitt.edu (D.S.); (M.S.H.); (D.F.H.); (R.B.P.)
| | - Renee Fisher
- Department of Radiation Oncology, UPMC Hillman Cancer Center, University of Pittsburgh, Pittsburgh, PA 15232, USA; (A.E.); (M.W.E.); (A.M.); (R.F.); shieldsd+@pitt.edu (D.S.); (M.S.H.); (D.F.H.); (R.B.P.)
| | - Donna Shields
- Department of Radiation Oncology, UPMC Hillman Cancer Center, University of Pittsburgh, Pittsburgh, PA 15232, USA; (A.E.); (M.W.E.); (A.M.); (R.F.); shieldsd+@pitt.edu (D.S.); (M.S.H.); (D.F.H.); (R.B.P.)
| | - Hong Wang
- Department of Biostatistics, University of Pittsburgh, Pittsburgh, PA 15232, USA;
| | - M. Saiful Huq
- Department of Radiation Oncology, UPMC Hillman Cancer Center, University of Pittsburgh, Pittsburgh, PA 15232, USA; (A.E.); (M.W.E.); (A.M.); (R.F.); shieldsd+@pitt.edu (D.S.); (M.S.H.); (D.F.H.); (R.B.P.)
| | - Diala Fatima Hamade
- Department of Radiation Oncology, UPMC Hillman Cancer Center, University of Pittsburgh, Pittsburgh, PA 15232, USA; (A.E.); (M.W.E.); (A.M.); (R.F.); shieldsd+@pitt.edu (D.S.); (M.S.H.); (D.F.H.); (R.B.P.)
| | - Anda M. Vlad
- Department of Obstetrics and Gynecology and Reproductive Sciences, University of Pittsburgh, Pittsburgh, PA 15232, USA;
| | - Lan Coffman
- Department of Medicine, University of Pittsburgh, Pittsburgh, PA 15232, USA; (L.C.); (R.B.)
| | - Ronald Buckanovich
- Department of Medicine, University of Pittsburgh, Pittsburgh, PA 15232, USA; (L.C.); (R.B.)
| | - Jian Yu
- Department of Pathology, University of Pittsburgh, Pittsburgh, PA 15232, USA; (J.Y.); (B.J.L.)
| | - Brian J. Leibowitz
- Department of Pathology, University of Pittsburgh, Pittsburgh, PA 15232, USA; (J.Y.); (B.J.L.)
| | | | - Ravi B. Patel
- Department of Radiation Oncology, UPMC Hillman Cancer Center, University of Pittsburgh, Pittsburgh, PA 15232, USA; (A.E.); (M.W.E.); (A.M.); (R.F.); shieldsd+@pitt.edu (D.S.); (M.S.H.); (D.F.H.); (R.B.P.)
| | - Donna Stolz
- Department of Cell Biology, University of Pittsburgh, Pittsburgh, PA 15232, USA; (D.S.); (S.W.)
| | - Simon Watkins
- Department of Cell Biology, University of Pittsburgh, Pittsburgh, PA 15232, USA; (D.S.); (S.W.)
| | - Asim Ejaz
- Department of Plastic and Reconstructive Surgery, University of Pittsburgh, Pittsburgh, PA 15232, USA;
| | - Joel S. Greenberger
- Department of Radiation Oncology, UPMC Hillman Cancer Center, University of Pittsburgh, Pittsburgh, PA 15232, USA; (A.E.); (M.W.E.); (A.M.); (R.F.); shieldsd+@pitt.edu (D.S.); (M.S.H.); (D.F.H.); (R.B.P.)
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Soret M, Maisonobe JA, Payen S, Gaubert A, Brunel S, Bergeret S, Berenbaum A, Hubert E, Kas A. Radiation dose to nuclear medicine technologists when operating PET/MR compared with PET/CT. J Radiol Prot 2022; 42:021522. [PMID: 35296565 DOI: 10.1088/1361-6498/ac5e50] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/03/2022] [Accepted: 03/16/2022] [Indexed: 06/14/2023]
Abstract
Since 2010, positron emission tomography/magnetic resonance (PET/MR) has been increasingly used as clinical routine in nuclear medicine departments. One advantage of PET/MR over PET/computed tomography (CT) is the lower dose of ionising radiation delivered to patients. However, data on the radiation dose delivered to staff operating PET/MR compared with the new generation of PET/CT equipment are still lacking. Our aim was to compare the radiation dose to nuclear medicine technologists performing routine PET/MR and PET/CT in the same department. We retrospectively measured the daily radiation dose received by PET technologists over 13 months by collecting individual dosimetry measurements (from electronic personal dosimeters). Data were analysed taking into account the total number of studies performed with each PET modality (PET/MR with Signa 3T, General Electric Healthcare versus PET/CT with Biograph mCT flow, Siemens), the type of exploration (brain versus whole-body PET), the18F activity injected per day and per patient as well as the time spent in contact with patients after tracer injection. Our results show a significantly higher whole-body exposure to technologists for PET/MR compared with PET/CT (10.3 ± 3.5 nSv versus 4.7 ± 1.2 nSv per18F injected MBq, respectively;p< 0.05). This difference was related to prolonged contact with injected patients during patient positioning with the PET/MR device and MR coil placement, especially in whole-body studies. For an equal injected activity, radiation exposure to PET technologists for PET/MR was twice that of PET/CT. To minimise the radiation dose to staff, efforts should be made to optimise patient positioning, even in departments with extensive PET/CT experience.
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Affiliation(s)
- Marine Soret
- AP-HP Sorbonne Université, Hôpital Pitié-Salpêtrière, Médecine Nucléaire, F-75013 Paris, France
- Sorbonne Université, CNRS, INSERM, Laboratoire d'Imagerie Biomédicale, LIB, F-75006 Paris, France
| | - Jacques-Antoine Maisonobe
- AP-HP Sorbonne Université, Hôpital Pitié-Salpêtrière, Médecine Nucléaire, F-75013 Paris, France
- Sorbonne Université, CNRS, INSERM, Laboratoire d'Imagerie Biomédicale, LIB, F-75006 Paris, France
| | - Stéphane Payen
- AP-HP Sorbonne Université, Hôpital Pitié-Salpêtrière, Médecine Nucléaire, F-75013 Paris, France
| | - Adèle Gaubert
- AP-HP Sorbonne Université, Hôpital Pitié-Salpêtrière, Médecine Nucléaire, F-75013 Paris, France
| | - Sandrine Brunel
- AP-HP Sorbonne Université, Hôpital Pitié-Salpêtrière, Médecine Nucléaire, F-75013 Paris, France
| | - Sébastien Bergeret
- AP-HP Sorbonne Université, Hôpital Pitié-Salpêtrière, Médecine Nucléaire, F-75013 Paris, France
| | - Arnaud Berenbaum
- AP-HP Sorbonne Université, Hôpital Pitié-Salpêtrière, Médecine Nucléaire, F-75013 Paris, France
| | - Emilie Hubert
- AP-HP Sorbonne Université, Hôpital Pitié-Salpêtrière, Médecine Nucléaire, F-75013 Paris, France
| | - Aurélie Kas
- AP-HP Sorbonne Université, Hôpital Pitié-Salpêtrière, Médecine Nucléaire, F-75013 Paris, France
- Sorbonne Université, CNRS, INSERM, Laboratoire d'Imagerie Biomédicale, LIB, F-75006 Paris, France
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Hine C, Treviño-Villarreal JH, Mejia P, Longchamp A, Brace LE, Harputlugil E, Mitchell SJ, Yang J, Guan Y, Maciejewski JP, Jha BK, Mitchell JR. Sulfur Amino Acid Supplementation Abrogates Protective Effects of Caloric Restriction for Enhancing Bone Marrow Regrowth Following Ionizing Radiation. Nutrients 2022; 14:nu14071529. [PMID: 35406143 PMCID: PMC9002760 DOI: 10.3390/nu14071529] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2022] [Revised: 03/30/2022] [Accepted: 04/02/2022] [Indexed: 02/01/2023] Open
Abstract
Radiation therapy damages and depletes total bone marrow (BM) cellularity, compromising safety and limiting effective dosing. Aging also strains total BM and BM hematopoietic stem and progenitor cell (HSPC) renewal and function, resulting in multi-system defects. Interventions that preserve BM and BM HSPC homeostasis thus have potential clinical significance. Here, we report that 50% calorie restriction (CR) for 7-days or fasting for 3-days prior to irradiation improved mouse BM regrowth in the days and weeks post irradiation. Specifically, one week of 50% CR ameliorated loss of total BM cellularity post irradiation compared to ad libitum-fed controls. CR-mediated BM protection was abrogated by dietary sulfur amino acid (i.e., cysteine, methionine) supplementation or pharmacological inhibition of sulfur amino acid metabolizing and hydrogen sulfide (H2S) producing enzymes. Up to 2-fold increased proliferative capacity of ex vivo-irradiated BM isolated from food restricted mice relative to control mice indicates cell autonomy of the protective effect. Pretreatment with H2S in vitro was sufficient to preserve proliferative capacity by over 50% compared to non-treated cells in ex vivo-irradiated BM and BM HSPCs. The exogenous addition of H2S inhibited Ten eleven translocation 2 (TET2) activity in vitro, thus providing a potential mechanism of action. Short-term CR or fasting therefore offers BM radioprotection and promotes regrowth in part via altered sulfur amino acid metabolism and H2S generation, with translational implications for radiation treatment and aging.
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Affiliation(s)
- Christopher Hine
- Department of Cardiovascular and Metabolic Sciences, Cleveland Clinic Lerner Research Institute, Cleveland, OH 44195, USA;
- Department of Molecular Metabolism (Formally Genetics and Complex Diseases), Harvard T.H. Chan School of Public Health, Boston, MA 02115, USA; (J.H.T.-V.) (P.M.); (A.L.); (L.E.B.); (E.H.); (S.J.M.); (J.R.M.)
- Correspondence:
| | - J. Humberto Treviño-Villarreal
- Department of Molecular Metabolism (Formally Genetics and Complex Diseases), Harvard T.H. Chan School of Public Health, Boston, MA 02115, USA; (J.H.T.-V.) (P.M.); (A.L.); (L.E.B.); (E.H.); (S.J.M.); (J.R.M.)
- Service of Endocrinology, Department of Internal Medicine, University Hospital and School of Medicine, Universidad Autonoma de Nuevo Leon, Monterrey N.L. 64460, Mexico
| | - Pedro Mejia
- Department of Molecular Metabolism (Formally Genetics and Complex Diseases), Harvard T.H. Chan School of Public Health, Boston, MA 02115, USA; (J.H.T.-V.) (P.M.); (A.L.); (L.E.B.); (E.H.); (S.J.M.); (J.R.M.)
| | - Alban Longchamp
- Department of Molecular Metabolism (Formally Genetics and Complex Diseases), Harvard T.H. Chan School of Public Health, Boston, MA 02115, USA; (J.H.T.-V.) (P.M.); (A.L.); (L.E.B.); (E.H.); (S.J.M.); (J.R.M.)
- Department of Vascular Surgery, Centre Hospitalier Universitaire Vaudois, University of Lausanne, CH-1011 Lausanne, Switzerland
| | - Lear E. Brace
- Department of Molecular Metabolism (Formally Genetics and Complex Diseases), Harvard T.H. Chan School of Public Health, Boston, MA 02115, USA; (J.H.T.-V.) (P.M.); (A.L.); (L.E.B.); (E.H.); (S.J.M.); (J.R.M.)
| | - Eylul Harputlugil
- Department of Molecular Metabolism (Formally Genetics and Complex Diseases), Harvard T.H. Chan School of Public Health, Boston, MA 02115, USA; (J.H.T.-V.) (P.M.); (A.L.); (L.E.B.); (E.H.); (S.J.M.); (J.R.M.)
| | - Sarah J. Mitchell
- Department of Molecular Metabolism (Formally Genetics and Complex Diseases), Harvard T.H. Chan School of Public Health, Boston, MA 02115, USA; (J.H.T.-V.) (P.M.); (A.L.); (L.E.B.); (E.H.); (S.J.M.); (J.R.M.)
- Department of Health Sciences and Technology, ETH Zurich, 8005 Zurich, Switzerland
| | - Jie Yang
- Department of Cardiovascular and Metabolic Sciences, Cleveland Clinic Lerner Research Institute, Cleveland, OH 44195, USA;
| | - Yihong Guan
- Department of Translational Hematology & Oncology Research, Taussig Cancer Institute, Cleveland Clinic, Cleveland, OH 44195, USA; (Y.G.); (J.P.M.); (B.K.J.)
| | - Jaroslaw P. Maciejewski
- Department of Translational Hematology & Oncology Research, Taussig Cancer Institute, Cleveland Clinic, Cleveland, OH 44195, USA; (Y.G.); (J.P.M.); (B.K.J.)
| | - Babal K. Jha
- Department of Translational Hematology & Oncology Research, Taussig Cancer Institute, Cleveland Clinic, Cleveland, OH 44195, USA; (Y.G.); (J.P.M.); (B.K.J.)
| | - James R. Mitchell
- Department of Molecular Metabolism (Formally Genetics and Complex Diseases), Harvard T.H. Chan School of Public Health, Boston, MA 02115, USA; (J.H.T.-V.) (P.M.); (A.L.); (L.E.B.); (E.H.); (S.J.M.); (J.R.M.)
- Department of Health Sciences and Technology, ETH Zurich, 8005 Zurich, Switzerland
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Bochicchio F, Fenton D, Fonseca H, García-Talavera M, Jaunet P, Long S, Olsen B, Mrdakovic Popic J, Ringer W. National Radon Action Plans in Europe and Need of Effectiveness Indicators: An Overview of HERCA Activities. Int J Environ Res Public Health 2022; 19:4114. [PMID: 35409799 DOI: 10.3390/ijerph19074114] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/14/2022] [Revised: 03/19/2022] [Accepted: 03/24/2022] [Indexed: 12/25/2022]
Abstract
Protection of the population and of workers from exposure to radon is a unique challenge in radiation protection. Many coordinated actions and a variety of expertise are needed. Initially, a National Radon Action Plan (NRAP) has been developed and implemented by some countries, while it is currently recommended by international organizations (e.g., World Health Organization) and required by international regulations, such as the European Council Directive 2013/59/Euratom and the International Basic Safety Standards on Radiation Protection and Safety of Radiation Sources, cosponsored by eight international organizations. Within this framework, the Heads of the European Radiological Protection Competent Authorities (HERCA) have organized activities aimed at sharing experiences to contribute toward the development and implementation of effective NRAPs. Two workshops were held in 2014 and 2015, the latter on radon in workplaces. As a follow-up to these, an online event took place in March 2021, and a second specific workshop on NRAP is planned for June 2022. These workshops were attended by experts from the competent authorities of European countries, relevant national and international organizations. The experience of several countries and the outcomes from these workshops have highlighted the need for adequate indicators of the effectiveness and progress of the actions of NRAPs, which could also be useful to implement the principle of optimization and the graded approach in NRAPs. In this paper, the activities of HERCA to support the development and implementation of effective NRAPs are described and some examples of effectiveness indicators are reported, including those already included in the NRAP of some European countries.
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Chaudhary P, Shukla SK, Suman S. Editorial: Multifaceted Approaches Combining Low or High LET Radiation and Pharmacological Interventions in Cancer and Radioprotection: From Bench to Bedside. Front Oncol 2022; 12:880607. [PMID: 35419286 PMCID: PMC8995526 DOI: 10.3389/fonc.2022.880607] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2022] [Accepted: 02/28/2022] [Indexed: 11/23/2022] Open
Affiliation(s)
- Pankaj Chaudhary
- The Patrick G Johnston Centre for Cancer Research, Faculty of Medicine, Health and Life Sciences, Queen’s University, Belfast, United Kingdom
| | - Sandeep Kumar Shukla
- Institute of Nuclear Medicine & Allied Sciences, Defense Research and Development Organization (DRDO), Delhi, India
| | - Shubhankar Suman
- Department of Oncology, Lombardi Comprehensive Cancer Center, Georgetown University Medical Center, Washington, DC, United States
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Lalkovicova M. Neuroprotective agents effective against radiation damage of central nervous system. Neural Regen Res 2022; 17:1885-1892. [PMID: 35142663 PMCID: PMC8848589 DOI: 10.4103/1673-5374.335137] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
Ionizing radiation caused by medical treatments, nuclear events or even space flights can irreversibly damage structure and function of brain cells. That can result in serious brain damage, with memory and behavior disorders, or even fatal oncologic or neurodegenerative illnesses. Currently used treatments and drugs are mostly targeting biochemical processes of cell apoptosis, radiation toxicity, neuroinflammation, and conditions such as cognitive-behavioral disturbances or others that result from the radiation insult. With most drugs, the side effects and potential toxicity are also to be considered. Therefore, many agents have not been approved for clinical use yet. In this review, we focus on the latest and most effective agents that have been used in animal and also in the human research, and clinical treatments. They could have the potential therapeutical use in cases of radiation damage of central nervous system, and also in prevention considering their radioprotecting effect of nervous tissue.
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Affiliation(s)
- Mária Lalkovicova
- Laboratory of Radiation Biology, Joint Institute for Nuclear Research, Dubna, Russia; Slovak Academy of Sciences, Institute of Experimental Physics, Košice, Slovakia
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47
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Mueller J, Langbein T, Mishra A, Baum RP. Safety of High-Dose Botulinum Toxin Injections for Parotid and Submandibular Gland Radioprotection. Toxins (Basel) 2022; 14:toxins14010064. [PMID: 35051042 PMCID: PMC8781970 DOI: 10.3390/toxins14010064] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2021] [Revised: 01/07/2022] [Accepted: 01/10/2022] [Indexed: 01/10/2023] Open
Abstract
Botulinum Toxin injections into salivary glands (SG) up to a total dose of 100 units IncobotulinumtoxinA (IncoA) represent the treatment of choice for sialorrhea. However, BTX might also protect SG against sialotoxic radioligand cancer therapies. The radioligand Actinium-225-PSMA effectively targets Prostate Cancer (PCa) metastases but inevitably destroys SG due to unintended gland uptake. A preliminary case series with regular-dose IncoA failed to reduce SG PSMA-radioligand uptake. We therefore increased IncoA dosage in combination with transdermal scopolamine until a clinically relevant SG PSMA-radioligand uptake reduction was achieved. Ten consecutive men with metastasized PCa refractory to all other cancer therapies received gradually increasing IncoA dosages as part of a compassionate use PSMA-radioligand-therapy trial. The parotid gland received six and the submandibular gland three injection points under ultrasound control, up to a maximum of 30 units IncoA per injection point. A maximum total dose of 250 units IncoA was applied with up to 170 units per parotid and 80 units per submandibular gland. Treatment was well tolerated and all side-effects were non-serious. The most frequent side-effect was dry mouth of mild severity. No dysphagia, facial weakness, chewing difficulties or systemic side-effects were observed. SG injections with IncoA up to a total dose of 250 units are safe when distributed among several injection-points under ultrasound control by an experienced physician. These preliminary findings lay the basis for future trials including BTX as major component for SG protection in established as well as newly emerging radioligand cancer therapies.
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Affiliation(s)
- Joerg Mueller
- Department of Neurology, Vivantes Klinikum Spandau, Neue Bergstrasse 6, D-13585 Berlin, Germany
- Correspondence:
| | - Thomas Langbein
- Department of Nuclear Medicine, Technical University of Munich, Klinikum rechts der Isar, Ismaninger Strasse 22, D-81675 München, Germany;
| | - Aditi Mishra
- Department of Nuclear Medicine, Curanosticum Wiesbaden, Deutsche Klinik für Diagnostik, Aukammallee 33, D-65191 Wiesbaden, Germany; (A.M.); (R.P.B.)
| | - Richard P. Baum
- Department of Nuclear Medicine, Curanosticum Wiesbaden, Deutsche Klinik für Diagnostik, Aukammallee 33, D-65191 Wiesbaden, Germany; (A.M.); (R.P.B.)
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Sadeghinezhad S, Khodamoradi E, Diojan L, Taeb S, Najafi M. Radioprotective Mechanisms of Arbutin: A Systematic Review. Curr Drug Res Rev 2022; 14:132-138. [PMID: 35319405 DOI: 10.2174/2589977514666220321114415] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2021] [Revised: 12/15/2021] [Accepted: 01/06/2022] [Indexed: 06/14/2023]
Abstract
PURPOSE Efforts to produce radioprotective agents of high potential are appropriate strategies for overcoming possible IR toxicity in organisms. The present research aims to evaluate the signaling pathways and mechanisms through which arbutin exerts radioprotective effects on organisms. METHODS The databases of PubMed, Web of Sciences, Google Scholar, and Scopus were searched to find studies that reported radioprotective effects for arbutin. Besides, the data were searched within the time period from 2010 to 2020. RESULTS Five research articles met our criteria, which were included in the analysis based on their relevance to the topic. The present systematic review provides conclusions about various mechanisms and pathways through which arbutin induces radioprotection. CONCLUSIONS Based on the relevant studies, various mechanisms can be proposed for inducing radioprotective effects by arbutin, including inhibition of oxidative stress, apoptosis, and inflammation.
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Affiliation(s)
- Shima Sadeghinezhad
- Radiology and Nuclear Medicine Department, School of Paramedical Sciences, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Ehsan Khodamoradi
- Radiology and Nuclear Medicine Department, School of Paramedical Sciences, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Loghman Diojan
- Radiology and Nuclear Medicine Department, School of Paramedical Sciences, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Shahram Taeb
- Department of Radiology, School of Paramedicine, Guilan University of Medical Sciences, Rasht, Iran
| | - Masoud Najafi
- Medical Technology Research Center, Institute of Health Technology, Kermanshah University of Medical Sciences, Kermanshah, Iran
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Wishart G, Gupta P, Nisbet A, Schettino G, Velliou E. On the Evaluation of a Novel Hypoxic 3D Pancreatic Cancer Model as a Tool for Radiotherapy Treatment Screening. Cancers (Basel) 2021; 13:6080. [PMID: 34885188 PMCID: PMC8657010 DOI: 10.3390/cancers13236080] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2021] [Revised: 11/24/2021] [Accepted: 11/30/2021] [Indexed: 12/15/2022] Open
Abstract
Tissue engineering is evolving to mimic intricate ecosystems of tumour microenvironments (TME) to more readily map realistic in vivo niches of cancerous tissues. Such advanced cancer tissue models enable more accurate preclinical assessment of treatment strategies. Pancreatic cancer is a dangerous disease with high treatment resistance that is directly associated with a highly complex TME. More specifically, the pancreatic cancer TME includes (i) complex structure and complex extracellular matrix (ECM) protein composition; (ii) diverse cell populations (e.g., stellate cells), cancer associated fibroblasts, endothelial cells, which interact with the cancer cells and promote resistance to treatment and metastasis; (iii) accumulation of high amounts of (ECM), which leads to the creation of a fibrotic/desmoplastic reaction around the tumour; and (iv) heterogeneous environmental gradients such as hypoxia, which result from vessel collapse and stiffness increase in the fibrotic/desmoplastic area of the TME. These unique hallmarks are not effectively recapitulated in traditional preclinical research despite radiotherapeutic resistance being largely connected to them. Herein, we investigate, for the first time, the impact of in vitro hypoxia (5% O2) on the radiotherapy treatment response of pancreatic cancer cells (PANC-1) in a novel polymer (polyurethane) based highly macroporous scaffold that was surface modified with proteins (fibronectin) for ECM mimicry. More specifically, PANC-1 cells were seeded in fibronectin coated macroporous scaffolds and were cultured for four weeks in in vitro normoxia (21% O2), followed by a two day exposure to either in vitro hypoxia (5% O2) or maintenance in in vitro normoxia. Thereafter, in situ post-radiation monitoring (one day, three days, seven days post-irradiation) of the 3D cell cultures took place via quantification of (i) live/dead and apoptotic profiles and (ii) ECM (collagen-I) and HIF-1a secretion by the cancer cells. Our results showed increased post-radiation viability, reduced apoptosis, and increased collagen-I and HIF-1a secretion in in vitro hypoxia compared to normoxic cultures, revealing hypoxia-induced radioprotection. Overall, this study employed a low cost, animal free model enabling (i) the possibility of long-term in vitro hypoxic 3D cell culture for pancreatic cancer, and (ii) in vitro hypoxia associated PDAC radio-protection development. Our novel platform for radiation treatment screening can be used for long-term in vitro post-treatment observations as well as for fractionated radiotherapy treatment.
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Affiliation(s)
- Gabrielle Wishart
- Bioprocess and Biochemical Engineering Group (BioProChem), Department of Chemical and Process Engineering, University of Surrey, Guildford GU2 7XH, UK; (G.W.); (P.G.)
- Department of Physics, University of Surrey, Guildford GU2 7XH, UK;
| | - Priyanka Gupta
- Bioprocess and Biochemical Engineering Group (BioProChem), Department of Chemical and Process Engineering, University of Surrey, Guildford GU2 7XH, UK; (G.W.); (P.G.)
- Centre for 3D Models of Health and Disease, Department of Targeted Intervention, Division of Surgery and Interventional Science, University College London (UCL), London W1W 7TY, UK
| | - Andrew Nisbet
- Department of Medical Physics and Biomedical Engineering, University College London (UCL), London WC1E 6BT, UK;
| | - Giuseppe Schettino
- Department of Physics, University of Surrey, Guildford GU2 7XH, UK;
- National Physical Laboratory, Teddington TW11 0LW, UK
| | - Eirini Velliou
- Bioprocess and Biochemical Engineering Group (BioProChem), Department of Chemical and Process Engineering, University of Surrey, Guildford GU2 7XH, UK; (G.W.); (P.G.)
- Centre for 3D Models of Health and Disease, Department of Targeted Intervention, Division of Surgery and Interventional Science, University College London (UCL), London W1W 7TY, UK
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50
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Zarei H, Bahreinipour M, Sefidbakht Y, Rezaei S, Gheisari R, Ardestani SK, Uskoković V, Watabe H. Radioprotective Role of Vitamins C and E against the Gamma Ray-Induced Damage to the Chemical Structure of Bovine Serum Albumin. Antioxidants (Basel) 2021; 10:1875. [PMID: 34942979 DOI: 10.3390/antiox10121875] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2021] [Revised: 11/17/2021] [Accepted: 11/19/2021] [Indexed: 12/17/2022] Open
Abstract
Radioprotective effects of vitamin C and vitamin E as a water-soluble and a lipid-soluble agent, respectively, were investigated at the molecular level during the imposition of gamma radiation-induced structural changes to bovine serum albumin (BSA) at the therapeutic dose of 3 Gy. Secondary and tertiary structural changes of control and irradiated BSA samples were investigated using circular dichroism and fluorescence spectroscopy. The preirradiation tests showed nonspecific and reversible binding of vitamins C and E to BSA. Secondary and tertiary structures of irradiated BSA considerably changed in the absence of the vitamins. Upon irradiation, α-helices of BSA transitioned to beta motifs and random coils, and the fluorescence emission intensity decreased relative to nonirradiated BSA. In the presence of the vitamins C or E, however, the irradiated BSA was protected from these structural changes caused by reactive oxygen species (ROS). The two vitamins exhibited different patterns of attachment to the protein surface, as inspected by blind docking, and their mechanisms of protection were different. The hydrophilicity of vitamin C resulted in the predominant scavenging of ROS in the solvent, whereas hydrophobic vitamin E localized on the nonpolar patches of the BSA surface, where it did not only form a barrier for diffusing ROS but also encountered them as an antioxidant and neutralized them thanks to the moderate BSA binding constant. Very low concentrations of vitamins C or E (0.005 mg/mL) appear to be sufficient to prevent the oxidative damage of BSA.
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