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Sakamoto Y, Shiraishi K, Kodama S. Enhanced induction of abnormal telomere FISH signals in response to oxidative DNA damage. JOURNAL OF RADIATION RESEARCH 2024; 65:187-193. [PMID: 38171574 PMCID: PMC10959432 DOI: 10.1093/jrr/rrad102] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/04/2023] [Revised: 11/16/2023] [Indexed: 01/05/2024]
Abstract
Telomere dysfunction induces chromosomal instability, which is a driving force in the development of cancers. To examine X-irradiation's effect on telomere integrity, we investigated X-ray-induced abnormalities in telomere signals detected by fluorescence in situ hybridization (telomere FISH) in mouse embryo fibroblast cells. The abnormalities were categorized as either extra telomere signals (ETSs) or loss of telomere signals (LTSs). The results indicated that low doses (0.3-0.5 Gy) of X-rays significantly induced ETS but not LTS and that ETS induction was saturated at doses above 0.5 Gy. In addition, treatment with hydrogen peroxide also induced ETS but not LTS. To clarify the involvement of radicals in inducing ETS, we examined the effect of ascorbic acid (AsA) on telomere FISH signals and found that pre-treatment with AsA (5 mM, 2 h), but not post-treatment, significantly suppressed the induction of ETS by X-irradiation. Importantly, neither pre- nor post-treatment with AsA affected X-ray-induced chromosome aberrations. These results suggest that oxidative DNA damage induced by radicals is involved in the induction of ETS. Furthermore, combined treatment with aphidicolin, a DNA replication inhibitor, elevated the induction of ETS by X-irradiation. This observation suggests that DNA replication stress, potentially triggered by oxidative DNA lesions within telomeres, may contribute to the induction of ETS resulting from X-irradiation. Based on these results, we propose that ETS is a sensitive biological marker of oxidative DNA damage in telomere structures.
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Affiliation(s)
- Yoshimi Sakamoto
- Radiation Biology Group, Department of Biological Chemistry, Graduate School of Science, Osaka Metropolitan University, 1-2 Gakuen-cho, Naka-ku, Sakai, Osaka 599-8570, Japan
| | - Kazunori Shiraishi
- Radiation Biology Group, Department of Biological Chemistry, Graduate School of Science, Osaka Metropolitan University, 1-2 Gakuen-cho, Naka-ku, Sakai, Osaka 599-8570, Japan
| | - Seiji Kodama
- Radiation Biology Group, Department of Biological Chemistry, Graduate School of Science, Osaka Metropolitan University, 1-2 Gakuen-cho, Naka-ku, Sakai, Osaka 599-8570, Japan
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2
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Maeda J, Nagai A, Aizawa Y, Kato TA. Palmitoyl ascorbic acid glucoside enhanced cell survival with post irradiation treatment. Biochem Biophys Res Commun 2024; 694:149386. [PMID: 38134476 DOI: 10.1016/j.bbrc.2023.149386] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2023] [Accepted: 12/12/2023] [Indexed: 12/24/2023]
Abstract
Radiation exposure poses a significant threat to cellular integrity by inducing DNA damage through the generation of free radicals and reactive oxygen species. Ascorbic acid, particularly its derivative Palmitoyl Ascorbic Acid 2-Glucoside (PA2G), has demonstrated remarkable radioprotective properties. While previous research focused on its pre-irradiation application, this study explores the post-irradiation radiomitigation potential of PA2G. Our findings reveal that post-irradiation treatment with PA2G enhances cell survival and accelerates DNA repair processes, particularly the non-homologous end-joining (NHEJ) repair pathway. Notably, PA2G treatment reduces the frequency of lethal chromosomal aberrations and micronuclei formation, indicating its ability to enhance the repair of complex DNA lesions. Furthermore, PA2G is shown to play a role in potentially lethal damage repair (PLDR). These radioprotective effects are specific to NHEJ and ATM pathways, as cells deficient in these mechanisms do not benefit from PA2G treatment. This study highlights PA2G as a versatile radioprotector, both pre- and post-irradiation, with significant potential for applications in radiation therapy and protection, offering new insights into its mechanism of action. Further research is required to elucidate the precise molecular mechanisms underlying PA2G's radiomitigation effects and its potential clinical applications.
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Affiliation(s)
- Junko Maeda
- Department of Environmental & Radiological Health Sciences, Colorado State University, USA
| | - Atsushi Nagai
- Research and Development Center, Carlit Holdings Co. Ltd, Japan
| | - Yasushi Aizawa
- Research and Development Center, Carlit Holdings Co. Ltd, Japan
| | - Takamitsu A Kato
- Department of Environmental & Radiological Health Sciences, Colorado State University, USA.
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3
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Bo T, Nohara H, Yamada KI, Miyata S, Fujii J. Ascorbic Acid Protects Bone Marrow from Oxidative Stress and Transient Elevation of Corticosterone Caused by X-ray Exposure in Akr1a-Knockout Mice. Antioxidants (Basel) 2024; 13:152. [PMID: 38397750 PMCID: PMC10886414 DOI: 10.3390/antiox13020152] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2023] [Revised: 01/22/2024] [Accepted: 01/24/2024] [Indexed: 02/25/2024] Open
Abstract
Bone marrow cells are the most sensitive to exposure to X-rays in the body and are selectively damaged even by doses that are generally considered permissive in other organs. Ascorbic acid (Asc) is a potent antioxidant that is reported to alleviate damages caused by X-ray exposure. However, rodents can synthesize Asc, which creates difficulties in rigorously assessing its effects in such laboratory animals. To address this issue, we employed mice with defects in their ability to synthesize Asc due to a genetic ablation of aldehyde reductase (Akr1a-KO). In this study, concentrations of white blood cells (WBCs) were decreased 3 days after exposure to X-rays at 2 Gy and then gradually recovered. At approximately one month, the recovery rate of WBCs was delayed in the Akr1a-KO mouse group, which was reversed via supplementation with Asc. Following exposure to X-rays, Asc levels decreased in plasma, bone marrow cells, and the liver during an early period, and then started to increase. X-ray exposure stimulated the pituitary gland to release adrenocorticotropic hormone (ACTH), which stimulated corticosterone secretion. Asc released from the liver, which was also stimulated by ACTH, appeared to be recruited to the bone marrow. Since corticosterone in high doses is injurious, these collective results imply that Asc protects bone marrow via its antioxidant capacity against ROS produced via exposure to X-rays and the cytotoxic action of transiently elevated corticosterone.
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Affiliation(s)
- Tomoki Bo
- Laboratory Animal Center, Institute for Promotion of Medical Science Research, Yamagata University Faculty of Medicine, 2-2-2 Iidanishi, Yamagata 990-9585, Japan
| | - Hidekazu Nohara
- Laboratory Animal Center, Institute for Promotion of Medical Science Research, Yamagata University Faculty of Medicine, 2-2-2 Iidanishi, Yamagata 990-9585, Japan
| | - Ken-ichi Yamada
- Physical Chemistry for Life Science Laboratory, Faculty of Pharmaceutical Sciences, Kyushu University, 3-1-1 Maidashi Higashi-ku, Fukuoka 812-8582, Japan;
| | - Satoshi Miyata
- Miyata Diabetes and Metabolism Clinic, 5-17-21 Fukushima, Fukushima-ku, Osaka 553-0003, Japan
| | - Junichi Fujii
- Department of Biochemistry and Molecular Biology, Graduate School of Medical Science, Yamagata University, 2-2-2 Iidanishi, Yamagata 990-9585, Japan
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4
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Karmanova EE, Chernikov AV, Popova NR, Sharapov MG, Ivanov VE, Bruskov VI. Metformin mitigates radiation toxicity exerting antioxidant and genoprotective properties. NAUNYN-SCHMIEDEBERG'S ARCHIVES OF PHARMACOLOGY 2023; 396:2449-2460. [PMID: 36961549 PMCID: PMC10036983 DOI: 10.1007/s00210-023-02466-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/11/2022] [Accepted: 03/14/2023] [Indexed: 03/25/2023]
Abstract
The antidiabetic drug metformin (MF) exhibits redox-modulating effects in various pathologies associated with oxidative stress and mitigates ionizing radiation-induced toxicity, but the underlying mechanisms remain to be elucidated. Thus, we studied some radiomitigatory effects of MF and explored the possible mechanisms behind them. Highly sensitive luminescence methods and non-competitive enzyme-linked immunosorbent assay (ELISA) were used in in vitro studies, and in vivo the damage to bone marrow cells and its repair were assessed by the micronucleus test. In a solution, MF at concentrations exceeding 0.1 µM effectively intercepts •OH upon X-ray-irradiation, but does not react directly with H2O2. MF accelerates the decomposition of H2O2 catalyzed by copper ions. MF does not affect the radiation-induced formation of H2O2 in the solution of bovine gamma-globulin (BGG), but has a modulating effect on the generation of H2O2 in the solution of bovine serum albumin (BSA). MF at 0.05-1 mM decreases the radiation-induced formation of 8-oxoguanine in a DNA solution depending on the concentration of MF with a maximum at 0.25 mM. MF at doses of 3 mg/kg body weight (bw) and 30 mg/kg bw administered to mice after irradiation, but not before irradiation, reduces the frequency of micronucleus formation in polychromatophilic erythrocytes of mouse red bone marrow. Our work has shown that the radiomitigatory properties of MF are mediated by antioxidant mechanisms of action, possibly including its ability to chelate polyvalent metal ions.
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Affiliation(s)
- Ekaterina E Karmanova
- Institute of Theoretical and Experimental Biophysics, Russian Academy of Sciences, 3 Institutskaya St., Pushchino, Moscow Region, 142290, Russia
- Institute of Cell Biophysics, Pushchino Scientific Center for Biological Research, Federal Research Center of the Russian Academy of Sciences, Pushchino, Moscow Region, Russia
| | - Anatoly V Chernikov
- Institute of Theoretical and Experimental Biophysics, Russian Academy of Sciences, 3 Institutskaya St., Pushchino, Moscow Region, 142290, Russia.
| | - Nelli R Popova
- Institute of Theoretical and Experimental Biophysics, Russian Academy of Sciences, 3 Institutskaya St., Pushchino, Moscow Region, 142290, Russia
| | - Mars G Sharapov
- Institute of Cell Biophysics, Pushchino Scientific Center for Biological Research, Federal Research Center of the Russian Academy of Sciences, Pushchino, Moscow Region, Russia
| | - Vladimir E Ivanov
- Institute of Theoretical and Experimental Biophysics, Russian Academy of Sciences, 3 Institutskaya St., Pushchino, Moscow Region, 142290, Russia
| | - Vadim I Bruskov
- Institute of Theoretical and Experimental Biophysics, Russian Academy of Sciences, 3 Institutskaya St., Pushchino, Moscow Region, 142290, Russia
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Suzuki M, Funayama T, Suzuki M, Kobayashi Y. Radiation-quality-dependent bystander cellular effects induced by heavy-ion microbeams through different pathways. JOURNAL OF RADIATION RESEARCH 2023; 64:824-832. [PMID: 37658690 PMCID: PMC10516730 DOI: 10.1093/jrr/rrad059] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/08/2023] [Revised: 07/06/2023] [Indexed: 09/03/2023]
Abstract
We investigated the radiation-quality-dependent bystander cellular effects using heavy-ion microbeams with different ion species. The heavy-ion microbeams were produced in Takasaki Ion Accelerators for Advanced Radiation Application, National Institutes for Quantum Science and Technology. Carbon (12C5+, 220 MeV), neon (20Ne7+, 260 MeV) and argon (40Ar13+, 460 MeV) ions were used as the microbeams, collimating the beam size with a diameter of 20 μm. After 0.5 and 3 h of irradiation, the surviving fractions (SFs) are significantly lower in cells irradiated with carbon ions without a gap-junction inhibitor than those irradiated with the inhibitor. However, the same SFs with no cell killing were found with and without the inhibitor at 24 h. Conversely, no cell-killing effect was observed in argon-ion-irradiated cells at 0.5 and 3 h; however, significantly low SFs were found at 24 h with and without the inhibitor, and the effect was suppressed using vitamin C and not dimethyl sulfoxide. The mutation frequency (MF) in cells irradiated with carbon ions was 8- to 6-fold higher than that in the unirradiated control at 0.5 and 3 h; however, no mutation was observed in cells treated with the gap-junction inhibitor. At 24 h, the MFs induced by each ion source were 3- to 5-fold higher and the same with and without the inhibitor. These findings suggest that the bystander cellular effects depend on the biological endpoints, ion species and time after microbeam irradiations with different pathways.
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Affiliation(s)
- Masao Suzuki
- Molecular and Cellular Radiation Biology Group, Department of Charged Particle Therapy Research, Institute for Quantum Medical Science, National Institutes for Quantum Science and Technology, 4-9-1 Anagawa, Chiba-shi, Chiba 263-8555, Japan
| | - Tomoo Funayama
- Project “Quantum-Applied Biotechnology”, Department of Quantum-Applied Biosciences, Takasaki Institute of Advanced Quantum Science, Foundational Quantum Technology Research Directorate, National Institutes for Quantum Science and Technology, 1233 Watanuki-machi, Takasaki-shi, Gunma 370-1292, Japan
| | - Michiyo Suzuki
- Project “Quantum-Applied Biotechnology”, Department of Quantum-Applied Biosciences, Takasaki Institute of Advanced Quantum Science, Foundational Quantum Technology Research Directorate, National Institutes for Quantum Science and Technology, 1233 Watanuki-machi, Takasaki-shi, Gunma 370-1292, Japan
| | - Yasuhiko Kobayashi
- Project “Quantum-Applied Biotechnology”, Department of Quantum-Applied Biosciences, Takasaki Institute of Advanced Quantum Science, Foundational Quantum Technology Research Directorate, National Institutes for Quantum Science and Technology, 1233 Watanuki-machi, Takasaki-shi, Gunma 370-1292, Japan
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6
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Burmistrov DE, Yanykin DV, Paskhin MO, Nagaev EV, Efimov AD, Kaziev AV, Ageychenkov DG, Gudkov SV. Additive Production of a Material Based on an Acrylic Polymer with a Nanoscale Layer of Zno Nanorods Deposited Using a Direct Current Magnetron Discharge: Morphology, Photoconversion Properties, and Biosafety. MATERIALS 2021; 14:ma14216586. [PMID: 34772111 PMCID: PMC8585381 DOI: 10.3390/ma14216586] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/16/2021] [Revised: 10/30/2021] [Accepted: 11/01/2021] [Indexed: 01/31/2023]
Abstract
On the basis of a direct current magnetron, a technology has been developed for producing nanoscale-oriented nanorods from zinc oxide on an acrylic polymer. The technology makes it possible to achieve different filling of the surface with zinc oxide nanorods. The nanorods is partially fused into the polymer; the cross section of the nanorods is rather close to an elongated ellipse. It is shown that, with intense abrasion, no delamination of the nanorods from the acrylic polymer is observed. The zinc oxide nanorods abrades together with the acrylic polymer. Zinc oxide nanorods luminesces with the wavelength most preferable for the process of photosynthesis in higher plants. It was shown that plants grown under the obtained material grow faster and gain biomass faster than the control group. In addition, it was found that on surfaces containing zinc oxide nanorods, a more intense formation of such reactive oxygen species as hydrogen peroxide and hydroxyl radical is observed. Intensive formation of long-lived, active forms of the protein is observed on the zinc oxide coating. The formation of 8-oxoguanine in DNA in vitro on a zinc oxide coating was shown using ELISA method. It was found that the multiplication of microorganisms on the developed material is significantly hampered. At the same time, eukaryotic cells of animals grow and develop without hindrance. Thus, the material we have obtained can be used in photonics (photoconversion material for greenhouses, housings for LEDs), and it is also an affordable and non-toxic nanomaterial for creating antibacterial coatings.
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Affiliation(s)
- Dmitry E. Burmistrov
- Prokhorov General Physics Institute of the Russian Academy of Sciences, 38 Vavilova St., 119991 Moscow, Russia; (D.E.B.); (D.V.Y.); (M.O.P.); (E.V.N.); (A.D.E.)
| | - Denis V. Yanykin
- Prokhorov General Physics Institute of the Russian Academy of Sciences, 38 Vavilova St., 119991 Moscow, Russia; (D.E.B.); (D.V.Y.); (M.O.P.); (E.V.N.); (A.D.E.)
| | - Mark O. Paskhin
- Prokhorov General Physics Institute of the Russian Academy of Sciences, 38 Vavilova St., 119991 Moscow, Russia; (D.E.B.); (D.V.Y.); (M.O.P.); (E.V.N.); (A.D.E.)
| | - Egor V. Nagaev
- Prokhorov General Physics Institute of the Russian Academy of Sciences, 38 Vavilova St., 119991 Moscow, Russia; (D.E.B.); (D.V.Y.); (M.O.P.); (E.V.N.); (A.D.E.)
| | - Alexey D. Efimov
- Prokhorov General Physics Institute of the Russian Academy of Sciences, 38 Vavilova St., 119991 Moscow, Russia; (D.E.B.); (D.V.Y.); (M.O.P.); (E.V.N.); (A.D.E.)
| | - Andrey V. Kaziev
- Moscow Engineering Physics Institute, National Research Nuclear University MEPhI, Kashirskoe Sh. 31, 115409 Moscow, Russia; (A.V.K.); (D.G.A.)
| | - Dmitry G. Ageychenkov
- Moscow Engineering Physics Institute, National Research Nuclear University MEPhI, Kashirskoe Sh. 31, 115409 Moscow, Russia; (A.V.K.); (D.G.A.)
| | - Sergey V. Gudkov
- Prokhorov General Physics Institute of the Russian Academy of Sciences, 38 Vavilova St., 119991 Moscow, Russia; (D.E.B.); (D.V.Y.); (M.O.P.); (E.V.N.); (A.D.E.)
- Correspondence:
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7
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Lawing AM, McCoy M, Reinke BA, Sarkar SK, Smith FA, Wright D. A Framework for Investigating Rules of Life by Establishing Zones of Influence. Integr Comp Biol 2021; 61:2095-2108. [PMID: 34297089 DOI: 10.1093/icb/icab169] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2021] [Revised: 06/26/2021] [Accepted: 07/20/2021] [Indexed: 12/18/2022] Open
Abstract
The incredible complexity of biological processes across temporal and spatial scales hampers defining common underlying mechanisms driving the patterns of life. However, recent advances in sequencing, big data analysis, machine learning, and molecular dynamics simulation have renewed the hope and urgency of finding potential hidden rules of life. There currently exists no framework to develop such synoptic investigations. Some efforts aim to identify unifying rules of life across hierarchical levels of time, space, and biological organization, but not all phenomena occur across all the levels of these hierarchies. Instead of identifying the same parameters and rules across levels, we posit that each level of a temporal and spatial scale and each level of biological organization has unique parameters and rules that may or may not predict outcomes in neighboring levels. We define this neighborhood, or the set of levels, across which a rule functions as the zone of influence. Here, we introduce the zone of influence framework and explain using three examples: (Smocovitis, 1992) randomness in biology, where we use a Poisson process to describe processes from protein dynamics to DNA mutations to gene expressions, (Leroi, 2014) island biogeography, and (Gropp, 2016) animal coloration. The zone of influence framework may enable researchers to identify which levels are worth investigating for a particular phenomenon and reframe the narrative of searching for a unifying rule of life to the investigation of how, when, and where various rules of life operate.
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Affiliation(s)
| | - Michael McCoy
- Department of Biology, East Carolina University, NC, USA
| | - Beth A Reinke
- Department of Biology, Northeastern Illinois University, IL, USA
| | | | - Felisa A Smith
- Department of Biology, University of New Mexico, NM, USA
| | - Derek Wright
- Department of Physics, Colorado School of Mines, CO, USA
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8
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Kim A, Yonemoto C, Feliciano CP, Shashni B, Nagasaki Y. Antioxidant Nanomedicine Significantly Enhances the Survival Benefit of Radiation Cancer Therapy by Mitigating Oxidative Stress-Induced Side Effects. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2021; 17:e2008210. [PMID: 33860635 DOI: 10.1002/smll.202008210] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/31/2020] [Revised: 03/20/2021] [Indexed: 06/12/2023]
Abstract
Oxidative stress-induced off-target effects limit the therapeutic window of radiation therapy. Although many antioxidants have been evaluated as radioprotective agents, none of them are in widespread clinical use, owing to the side effects of the antioxidants themselves and the lack of apparent benefit. Aiming for a truly effective radioprotective agent in radiation cancer therapy, the performance of a self-assembling antioxidant nanoparticle (herein denoted as redox nanoparticle; RNP) is evaluated in the local irradiation of a subcutaneous tumor-bearing mouse model. Since RNP is covered with a biocompatible shell layer and possesses a core-shell type structure of several tens of nanometers in size, its lifetime in the systemic circulation is prolonged. Moreover, since 2,2,6,6-tetramethylpiperidine-1-oxyl (TEMPO), one of the most potent antioxidants, is covalently encapsulated in the core of RNP, it exerts intense antioxidant activity and induces fewer adverse effects by avoiding leakage of the TEMPO molecules. Preadministration of RNP to the mouse model effectively mitigates side effects in normal tissues and significantly extends the survival benefit of radiation cancer therapy. Moreover, RNP pretreatment noticeably increases the apoptosis/necrosis ratio of radiation-induced cell death, a highly desirable property to reduce the chronic side effects of ionizing irradiation.
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Affiliation(s)
- Ahram Kim
- Department of Materials Science, Graduate School of Pure and Applied Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8573, Japan
| | - Chiaki Yonemoto
- Department of Materials Science, Graduate School of Pure and Applied Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8573, Japan
| | - Chitho P Feliciano
- Radiation Research Center (RRC), Philippine Nuclear Research Institute, Department of Science and Technology (DOST-PNRI), Commonwealth Avenue, Diliman, Quezon City, 1101, Philippines
- Health Physics Research Section, Atomic Research Division, Philippine Nuclear Research Institute, Department of Science and Technology (DOST-PNRI), Commonwealth Avenue, Diliman, Quezon City, 1101, Philippines
| | - Babita Shashni
- Department of Materials Science, Graduate School of Pure and Applied Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8573, Japan
| | - Yukio Nagasaki
- Department of Materials Science, Graduate School of Pure and Applied Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8573, Japan
- Master's School of Medical Sciences, Graduate School of Comprehensive Human Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8573, Japan
- Center for Research in Isotopes and Environmental Dynamics (CRiED), University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8573, Japan
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9
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Solórzano-Meléndez A, Rodrigo-Alarcón R, Gómez-Meda BC, Zamora-Pérez AL, Ortiz-García RG, Bayardo-López LH, González-Virgen R, Gallegos-Arreola MP, Zúñiga-González GM. Micronucleated erythrocytes in peripheral blood from neonate rats fed by nursing mothers exposed to X-rays. ENVIRONMENTAL AND MOLECULAR MUTAGENESIS 2021; 62:177-184. [PMID: 33496960 DOI: 10.1002/em.22426] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/19/2020] [Revised: 01/20/2021] [Accepted: 01/22/2021] [Indexed: 06/12/2023]
Abstract
Most women with breast cancer can become pregnant and give birth while undergoing radiation therapy and breastfeeding is generally not contraindicated. The induction of long-lived reactive species in proteins, such as casein by X-ray radiation and DNA damage to unexposed organisms, has been shown when ingesting irradiated cheese. To determine whether exposing lactating rats to X-rays increases the number of micronucleated erythrocytes (MNEs) in peripheral blood of their unexposed or breastfeeding rat pups, 15 female Wistar rats were divided into three groups: Negative control; Experimental group exposed to X-rays, and group exposed to X-rays plus vitamin C. The mothers of groups 2 and 3 were irradiated for three consecutive days after giving birth, returning them to their respective cages each time to continue lactation. A blood sample was taken from the mothers and pups at 0, 24, and 48 hr. Blood smears were stained with acridine orange to analyze MNEs. In mother rats, the frequency of micronucleated polychromatic erythrocytes (MNPCEs) increased significantly at 24 and 48 hr in both study groups exposed to radiation. Likewise, in rat pups the MNPCE and MNE frequencies increased in both groups with radiation and radiation plus vitamin C at 24 and 48 hr, and a protection from vitamin C was observed. In conclusion, the genotoxic damage produced in rat pups that were lactated by mothers irradiated with X-rays is possibly due to the effect of long-lived reactive species that were formed in the breast milk of female Wistar rats during the irradiation process.
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Affiliation(s)
- Alejandro Solórzano-Meléndez
- Servicio de Radio-oncología, Centro Nacional de Radioneurocirugía, Unidad Médica de Alta Especialidad, Hospital de Especialidades, Centro Médico Nacional de Occidente, Instituto Mexicano del Seguro Social, Guadalajara, Jalisco, Mexico
| | - Rodolfo Rodrigo-Alarcón
- Servicio de Radio-oncología, Centro Nacional de Radioneurocirugía, Unidad Médica de Alta Especialidad, Hospital de Especialidades, Centro Médico Nacional de Occidente, Instituto Mexicano del Seguro Social, Guadalajara, Jalisco, Mexico
| | - Belinda C Gómez-Meda
- Instituto de Genética Humana "Dr. Enrique Corona Rivera", Departamento de Biología Molecular y Genómica, Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara, Guadalajara, Jalisco, Mexico
| | - Ana L Zamora-Pérez
- Instituto de Investigación en Odontología, Departamento de Clínicas Odontológicas Integrales, Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara, Guadalajara, Jalisco, Mexico
| | - Ramón G Ortiz-García
- Laboratorio de Mutagénesis, División de Medicina Molecular, Centro de Investigación Biomédica de Occidente, Instituto Mexicano del Seguro Social, Guadalajara, Jalisco, Mexico
- Doctorado en Genética Humana, Departamento de Biología Molecular y Genómica, Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara, Guadalajara, Jalisco, Mexico
| | - Luis H Bayardo-López
- Servicio de Radio-oncología, Centro Nacional de Radioneurocirugía, Unidad Médica de Alta Especialidad, Hospital de Especialidades, Centro Médico Nacional de Occidente, Instituto Mexicano del Seguro Social, Guadalajara, Jalisco, Mexico
| | - Roberto González-Virgen
- Servicio de Radio-oncología, Centro Nacional de Radioneurocirugía, Unidad Médica de Alta Especialidad, Hospital de Especialidades, Centro Médico Nacional de Occidente, Instituto Mexicano del Seguro Social, Guadalajara, Jalisco, Mexico
| | - Martha P Gallegos-Arreola
- Laboratorio de Genética Molecular, División de Genética, Centro de Investigación Biomédica de Occidente, Instituto Mexicano del Seguro Social, Guadalajara, Jalisco, Mexico
| | - Guillermo M Zúñiga-González
- Laboratorio de Mutagénesis, División de Medicina Molecular, Centro de Investigación Biomédica de Occidente, Instituto Mexicano del Seguro Social, Guadalajara, Jalisco, Mexico
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10
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Radiation-Induced Bystander Effect: Loss of Radioprotective Capacity of Rosmarinic Acid In Vivo and In Vitro. Antioxidants (Basel) 2021; 10:antiox10020231. [PMID: 33546480 PMCID: PMC7913630 DOI: 10.3390/antiox10020231] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2020] [Revised: 01/21/2021] [Accepted: 01/30/2021] [Indexed: 01/19/2023] Open
Abstract
In radiation oncology, the modulation of the bystander effect is a target both for the destruction of tumor cells and to protect healthy cells. With this objective, we determine whether the radioprotective capacity of rosmarinic acid (RA) can affect the intensity of these effects. Genoprotective capacity was obtained by determining the micronuclei frequencies in in vivo and in vitro assays and the cell survival was determined by the (3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide assay) (MTT) assay in three cell lines (PNT2, TRAMPC1 and B16F10), both in direct exposure to X-rays and after the production of radiation-induced bystander effect. The administration of RA in irradiated cells produced a decrease in the frequency of micronuclei both in vivo and in vitro, and an increase in cell survival, as expression of its radioprotective effect (p < 0.001) attributable to its ability to scavenge radio-induced free radicals (ROS). However, RA does not achieve any modification in the animals receiving serum or in the cultures treated with the irradiated medium, which expresses an absence of radioprotective capacity. The results suggest that ROS participates in the formation of signals in directly irradiated cells, but only certain subtypes of ROS, the cytotoxic products of lipid peroxidation, participate in the creation of lesions in recipient cells.
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Sharapov MG, Gudkov SV. Peroxiredoxin 1 - Multifunctional antioxidant enzyme, protects from oxidative damages and increases the survival rate of mice exposed to total body irradiation. Arch Biochem Biophys 2020; 697:108671. [PMID: 33181129 DOI: 10.1016/j.abb.2020.108671] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2020] [Revised: 10/18/2020] [Accepted: 11/05/2020] [Indexed: 12/11/2022]
Abstract
PURPOSE Peroxiredoxin 1 (Prx1) is known to be a multifunctional antioxidant enzyme playing an essential role in protecting the organism against oxidative stress. We hypothesized that administration of exogenous recombinant Prx1 may provide additional protection of the mammalian organism during the development of acute oxidative stress induced by ionizing radiation. Hence, the aim of the present work was to study the radioprotective properties of exogenous Prx1. MATERIALS AND METHODS Recombinant Prx1 was obtained by genetic engineering. The properties of Prx1 were studied using physicochemical methods. An immunoblotting and ELISA were used for the determination of the level of endogenous and exogenous Prx1 in animal blood. The survival rate of irradiated animals was assessed for 30 days with various modes of administration (intraperitoneal, intramuscular, intravenously) Prx1. Using a hematological analyzer and microscopic analysis, the changes in the level of leukocytes and platelets were assessed in animals that received and did not receive an intravenous injection of Prx1 before irradiation. Genoprotective properties of Prx1 were confirmed by micronucleus test. Real-time PCR was used to investigate the effect of Prx1 on the expression of genes involved in response to oxidative stress. RESULTS Recombinant Prx1 was shown to significantly reduce oxidative damage to biological macromolecules. Prx1 is an effective radioprotector which decreases the severity of radiation-induced leuko- and thrombocytopenia, plus protects bone marrow cells from damage. The half-life of Prx1 in the bloodstream is more than 1 h, while within 1 h there is a loss of the antioxidant activity of Prx1 by almost 50%, which limits its use long (2 h) before irradiation. The introduction of Prx1 after irradiation has no significant radiomitigating effect. The most effective way of using Prx1 is intravenous administration shortly (15-30 min) before exposure to ionizing radiation, with a dose reduction factor of 1.3. Under the action of ionizing radiation a dose-dependent appearance of endogenous Prx1 in the bloodstream was also observed. The appearance of Prx1 in the bloodstream alters the expression of stress response genes (especial antioxidant response and DNA repair) in the cells of red bone marrow, promoting the activation of repair processes. CONCLUSION The recombinant Prx1 can be considered as an effective radioprotector for minimizing the risks of injury of animal's body by ionizing radiation.
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Affiliation(s)
- Mars G Sharapov
- Institute of Cell Biophysics of the Russian Academy of Sciences, PSCBR RAS, Pushchino, Russia.
| | - Sergey V Gudkov
- Prokhorov General Physics Institute of the Russian Academy of Sciences, Moscow, Russia.
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Sharapov M, Novoselov V, Samygina V, Konarev P, Molochkov A, Sekirin A, Balkanov A, Gudkov S. A chimeric recombinant protein with peroxidase and superoxide dismutase activities: Physico-chemical characterization and applicability to neutralize oxidative stress caused by ionizing radiation. Biochem Eng J 2020. [DOI: 10.1016/j.bej.2020.107603] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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Shemetun OV, Pilinska MA. RADIATION-INDUCED BYSTANDER EFFECT - MODELING, MANIFESTATION, MECHANISMS, PERSISTENCE, CANCER RISKS (literature review). PROBLEMY RADIAT︠S︡IĬNOÏ MEDYT︠S︡YNY TA RADIOBIOLOHIÏ 2020; 24:65-92. [PMID: 31841459 DOI: 10.33145/2304-8336-2019-24-65-92] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/03/2019] [Indexed: 01/02/2023]
Abstract
The review summarizes and analyzes the data of world scientific literature and the results of the own research con- cerning one of the main non-targeted effects of ionizing radiation - the radiation induced bystander effect (RIBE) - the ability of irradiated target cells to induce secondary biological changes in non-irradiated receptor cells. The his- tory of studies of this phenomenon is presented - it described under various names since 1905, began to study from the end of the twentieth century when named as RIBE and caused particular interest in the scientific community during recent decades. It is shown that the development of biological science and the improvement of research methods allowed to get new in-depth data on the development of RIBE not only at the level of the whole organism, but even at the genome level. The review highlights the key points of numerous RIBE investigations including mod- eling; methodological approaches to studying; classification; features of interaction between irradiated and intact cells; the role of the immune system, oxidative stress, cytogenetic disorders, changes in gene expression in the mechanism of development of RIBE; rescue effect, abscopal effect, persistence, modification, medical effects. It is emphasized that despite the considerable amount of research concerning the bystander response as the universal phenomenon and RIBE as one of its manifestations, there are still enough «white spots» in determining the mech- anisms of the RIBE formation and assessing the possible consequences of its development for human health.
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Affiliation(s)
- O V Shemetun
- State Institution «National Research Center for Radiation Medicine of the National Academy of MedicalSciences of Ukraine», 53 Yuriia Illienka St., Kyiv, 04050, Ukraine
| | - M A Pilinska
- State Institution «National Research Center for Radiation Medicine of the National Academy of MedicalSciences of Ukraine», 53 Yuriia Illienka St., Kyiv, 04050, Ukraine
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Oral ascorbic acid 2-glucoside prevents coordination disorder induced via laser-induced shock waves in rat brain. PLoS One 2020; 15:e0230774. [PMID: 32240226 PMCID: PMC7117653 DOI: 10.1371/journal.pone.0230774] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2019] [Accepted: 02/13/2020] [Indexed: 12/17/2022] Open
Abstract
Oxidative stress is considered to be involved in the pathogenesis of primary blast-related traumatic brain injury (bTBI). We evaluated the effects of ascorbic acid 2-glucoside (AA2G), a well-known antioxidant, to control oxidative stress in rat brain exposed to laser-induced shock waves (LISWs). The design consisted of a controlled animal study using male 10-week-old Sprague-Dawley rats. The study was conducted at the University research laboratory. Low-impulse (54 Pa•s) LISWs were transcranially applied to rat brain. Rats were randomized to control group (anesthesia and head shaving, n = 10), LISW group (anesthesia, head shaving and LISW application, n = 10) or LISW + post AA2G group (AA2G administration after LISW application, n = 10) in the first study. In another study, rats were randomized to control group (n = 10), LISW group (n = 10) or LISW + pre and post AA2G group (AA2G administration before and after LISW application, n = 10). The measured outcomes were as follows: (i) motor function assessed by accelerating rotarod test; (ii) levels of 8-hydroxy-2'-deoxyguanosine (8-OHdG), an oxidative stress marker; (iii) ascorbic acid in each group of rats. Ascorbic acid levels were significantly decreased and 8-OHdG levels were significantly increased in the cerebellum of the LISW group. Motor coordination disorder was also observed in the group. Prophylactic AA2G administration significantly increased the ascorbic acid levels, reduced oxidative stress and mitigated the motor dysfunction. In contrast, the effects of therapeutic AA2G administration alone were limited. The results suggest that the prophylactic administration of ascorbic acid can reduce shock wave-related oxidative stress and prevented motor dysfunction in rats.
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Antropova IG, Revina AA, Kurakina ES, Magomedbekov EP. Radiation Chemical Investigation of Antioxidant Activity of Biologically Important Compounds from Plant Materials. ACS OMEGA 2020; 5:5976-5983. [PMID: 32226878 PMCID: PMC7098002 DOI: 10.1021/acsomega.9b04335] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/17/2019] [Accepted: 02/28/2020] [Indexed: 05/10/2023]
Abstract
Radiation chemical modeling of redox reactions of biologically active compounds from plant materials showed that coumarins possess strong antiradical properties. Data confirming the radioprotective properties of these compounds were obtained. Antioxidant activity has been shown for specific medicinal plant extracts-Melilotus officinalis and Ledum palustre cormus. The radiation chemical transformations of coumarins revealed that an unsubstituted coumarin has greater radioprotective activity.
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Affiliation(s)
- Irina G. Antropova
- Department
of High Energy Chemistry and Radioecology, Dmitry Mendeleev University of Chemical Technology of Russia, Miusskaya Square, 9, 125047 Moscow, Russian Federation
- E-mail: . Phone: +7(495)948-54-64. Fax: +7(495)944-19-87
| | - Aleksandra A. Revina
- Department
of High Energy Chemistry and Radioecology, Dmitry Mendeleev University of Chemical Technology of Russia, Miusskaya Square, 9, 125047 Moscow, Russian Federation
- A.N.
Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, 31/4 Leninsky Prospect, 119071 Moscow, Russian Federation
| | - Elena S. Kurakina
- Department
of High Energy Chemistry and Radioecology, Dmitry Mendeleev University of Chemical Technology of Russia, Miusskaya Square, 9, 125047 Moscow, Russian Federation
- Dzhelepov
Laboratory of Nuclear Problems, Joint Institute
for Nuclear Research, Joliot-Curie 6, 141980 Dubna, Russian Federation
| | - Eldar P. Magomedbekov
- Department
of High Energy Chemistry and Radioecology, Dmitry Mendeleev University of Chemical Technology of Russia, Miusskaya Square, 9, 125047 Moscow, Russian Federation
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Maeda J, Allum AJ, Mussallem JT, Froning CE, Haskins AH, Buckner MA, Miller CD, Kato TA. Ascorbic Acid 2-Glucoside Pretreatment Protects Cells from Ionizing Radiation, UVC, and Short Wavelength of UVB. Genes (Basel) 2020; 11:genes11030238. [PMID: 32106443 PMCID: PMC7140853 DOI: 10.3390/genes11030238] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2020] [Revised: 02/15/2020] [Accepted: 02/20/2020] [Indexed: 12/21/2022] Open
Abstract
Ascorbic acid 2-glucoside (AA2G), glucosylated ascorbic acid (AA), has superior properties for bioavailability and stability compared to AA. Although AA2G has shown radioprotective properties similar to AA, effects for UV light, especially UVC and UVB, are not studied. AA2G was tested for cytotoxicity and protective effects against ionizing radiation, UVC, and broadband and narrowband UVB in Chinese hamster ovary (CHO) cells and compared to AA and dimethyl sulfoxide (DMSO). Pretreatment with DMSO, AA, and AA2G showed comparative protective effects in CHO wild type and radiosensitive xrs5 cells for cell death against ionizing radiation with reducing the number of radiation-induced DNA damages. Pretreatment with AA and AA2G protected CHO wild type and UV sensitive UV135 cells from UVC and broadband UV, but not from narrowband UVB. DMSO showed no protective effects against tested UV. The UV filtration effects of AA and AA2G were analyzed with a spectrometer and spectroradiometer. AA and AA2G blocked UVC and reduced short wavelengths of UVB, but had no effect on wavelengths above 300nm. These results suggest that AA2G protects cells from radiation by acting as a radical scavenger to reduce initial DNA damage, as well as protecting cells from certain UVB wavelengths by filtration.
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Sharapov MG, Novoselov VI, Penkov NV, Fesenko EE, Vedunova MV, Bruskov VI, Gudkov SV. Protective and adaptogenic role of peroxiredoxin 2 (Prx2) in neutralization of oxidative stress induced by ionizing radiation. Free Radic Biol Med 2019; 134:76-86. [PMID: 30605715 DOI: 10.1016/j.freeradbiomed.2018.12.032] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/06/2018] [Revised: 12/24/2018] [Accepted: 12/25/2018] [Indexed: 01/04/2023]
Abstract
A radioprotective effect of exogenous recombinant peroxiredoxin 2 (Prx2) was revealed and characterized using an animal model of whole body X-ray irradiation at sublethal and lethal doses. Prx2 belongs to an evolutionarily ancient family of peroxidases that are involved in enzymatic degradation of a wide variety of organic and inorganic hydroperoxides. Apart from that, the oxidized form of Prx2 also exhibits chaperone activity, thereby preventing protein misfolding and aggregation under oxidative stress. Intravenous administration of Prx2 in animals at a concentration of 20 µg/g 15 min before exposure to ionizing radiation contributes to a significantly higher survival rate, suppresses the development of leucopenia and thrombocytopenia, as well as protects the bone marrow cells from genome DNA damage. Moreover, injection of Prx2 leads to suppression of apoptosis, stimulates cell proliferation and results in a more rapid recovery of the cell redox state. Exogenous Prx2 neutralizes the effect of the priming dose on the second irradiation of the cells. The radioprotective properties of exogenous Prx2 are stipulated by its broad substrate peroxidase activity, chaperone activity in the oxidized state, and are also due to the signal-regulatory function of Prx2 mediated by the regulation of the level of hydroperoxides as well as via interaction with redox-sensitive regulatory proteins.
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Affiliation(s)
- M G Sharapov
- Institute of Cell Biophysics of the Russian Academy of Sciences, Pushchino, Russia
| | - V I Novoselov
- Institute of Cell Biophysics of the Russian Academy of Sciences, Pushchino, Russia
| | - N V Penkov
- Institute of Cell Biophysics of the Russian Academy of Sciences, Pushchino, Russia
| | - E E Fesenko
- Institute of Cell Biophysics of the Russian Academy of Sciences, Pushchino, Russia
| | - M V Vedunova
- Lobachevsky State University of Nizhni Novgorod, Nizhni Novgorod, Russia
| | - V I Bruskov
- Institute of Theoretical and Experimental Biophysics of the Russian Academy of Sciences, Pushchino, Russia
| | - S V Gudkov
- Lobachevsky State University of Nizhni Novgorod, Nizhni Novgorod, Russia; Prokhorov General Physics Institute of the Russian Academy of Sciences, Moscow, Russia; Moscow Regional Research and Clinical Institute (MONIKI), Moscow, Russia.
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Burger A, Lichtscheidl I. Strontium in the environment: Review about reactions of plants towards stable and radioactive strontium isotopes. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 653:1458-1512. [PMID: 30759584 DOI: 10.1016/j.scitotenv.2018.10.312] [Citation(s) in RCA: 90] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/26/2018] [Revised: 10/22/2018] [Accepted: 10/23/2018] [Indexed: 06/09/2023]
Abstract
Radiostrontium is released to the environment from routine and accidental discharge and acts on living organisms either from external sources or after absorption. When incorporated by plants, it enters the food chain and causes primary threat to human health and the environment. Understanding the mechanisms of plants for strontium uptake and retention is therefore essential for decision making concerning agriculture: are uptake rates low enough so that plants can serve as food? Or is radiostrontium accumulated so that plants should not be eaten but could be probably used for extracting strontium from water and soil in hot spots of pollution? The review presents a summary of studies about the origin of stable and radioactive strontium in the environment and effects coming from both internal and external exposure of plants. Mobility and availability of strontium to plant roots in soil are controlled by external factors such as chemical composition of the soil and pH, temperature and agricultural soil cultivation as well as soil biological networks built by microbial communities. Plant surfaces may receive input of strontium from deposition induced by atmospheric pollution or by acquisition from water through the whole immersed surface. Cells have entry mechanisms for strontium such as plasma membrane transporters for calcium and potassium. Part of absorbed strontium can be lost via processes discussed in this review. We give examples on strontium transfer factors for 149 plants to estimate plant absorption capacity for strontium from soil, water and air. Uptake efficiency of terrestrial and aquatic plants is deciding about their remediation potential to either remove radiostrontium by accumulation and rhizofiltration or to retain it in roots or aerial parts. Data of strontium content in soils after fallout and edible plants from long-term monitoring support the evaluation of the potential hazards posed by strontium input to the food chain.
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Affiliation(s)
- Anna Burger
- University of Vienna, Core Facility Cell Imaging and Ultrastructure Research, Althanstrasse 14, A-1090 Vienna, Austria.
| | - Irene Lichtscheidl
- University of Vienna, Core Facility Cell Imaging and Ultrastructure Research, Althanstrasse 14, A-1090 Vienna, Austria
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Zhang J, Han X, Zhao Y, Xue X, Fan S. Mouse serum protects against total body irradiation-induced hematopoietic system injury by improving the systemic environment after radiation. Free Radic Biol Med 2019; 131:382-392. [PMID: 30578918 DOI: 10.1016/j.freeradbiomed.2018.12.021] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/18/2018] [Revised: 12/04/2018] [Accepted: 12/17/2018] [Indexed: 12/31/2022]
Abstract
Reactive oxygen species (ROS) play a critical role in total body irradiation (TBI)-induced hematopoietic system injury. However, the mechanisms involved in ROS production in hematopoietic stem cells (HSCs) post TBI need to be further explored. In this study, we demonstrated that hematopoietic system injury in mice radiated with TBI was effectively alleviated when the blood circulation environment was changed via the injection of serum from non-radiated mice. Serum injection increased the survival of radiated mice and ameliorated TBI-induced hematopoietic system injury through attenuating myeloid skew, increasing HSC frequency, and promoting the reconstitution of radiated HSCs. Serum injection also decreased ROS levels in HSCs and regulated oxidative stress-related proteins. A serum proteome sequence array showed that proteins related to tissue injury and oxidative stress were regulated, and a serum-derived exosome microRNA sequence assay showed that the PI3K-Akt and Hippo signaling pathways were affected in radiated mice injected with serum from non-radiated mice. Furthermore, a significant increase in cell viability and a decrease in ROS were observed in radiated lineage-c-kit+ cells treated with serum-derived exosomes. Similarly, an improvement in the impaired differentiation of HSCs was observed in radiated mice injected with serum-derived exosomes. Taken together, our observations suggest that serum from non-radiated mice alleviates HSC injury in radiated mice by improving the systemic environment after radiation, and exosomes contribute to this radioprotective effect as important serum active component.
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Affiliation(s)
- Junling Zhang
- Tianjin Key Laboratory of Radiation Medicine and Molecular Nuclear Medicine, Institute of Radiation Medicine, Chinese Academy of Medical Science/Peking Union Medical College, Tianjin 300192, China.
| | - Xiaodan Han
- Tianjin Key Laboratory of Radiation Medicine and Molecular Nuclear Medicine, Institute of Radiation Medicine, Chinese Academy of Medical Science/Peking Union Medical College, Tianjin 300192, China; Department of Radiation Oncology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China.
| | - Yu Zhao
- Tianjin Key Laboratory of Radiation Medicine and Molecular Nuclear Medicine, Institute of Radiation Medicine, Chinese Academy of Medical Science/Peking Union Medical College, Tianjin 300192, China
| | - Xiaolei Xue
- Tianjin Key Laboratory of Radiation Medicine and Molecular Nuclear Medicine, Institute of Radiation Medicine, Chinese Academy of Medical Science/Peking Union Medical College, Tianjin 300192, China; Baokang Hospital, University of Tianjin Traditional Chinese Medicine, Tianjin 300193, China
| | - Saijun Fan
- Tianjin Key Laboratory of Radiation Medicine and Molecular Nuclear Medicine, Institute of Radiation Medicine, Chinese Academy of Medical Science/Peking Union Medical College, Tianjin 300192, China.
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Unmodified hydrated С60 fullerene molecules exhibit antioxidant properties, prevent damage to DNA and proteins induced by reactive oxygen species and protect mice against injuries caused by radiation-induced oxidative stress. NANOMEDICINE-NANOTECHNOLOGY BIOLOGY AND MEDICINE 2019; 15:37-46. [DOI: 10.1016/j.nano.2018.09.001] [Citation(s) in RCA: 50] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/08/2018] [Revised: 05/19/2018] [Accepted: 09/04/2018] [Indexed: 12/25/2022]
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Fischer N, Seo EJ, Efferth T. Prevention from radiation damage by natural products. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2018; 47:192-200. [PMID: 30166104 DOI: 10.1016/j.phymed.2017.11.005] [Citation(s) in RCA: 85] [Impact Index Per Article: 14.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/14/2017] [Revised: 10/20/2017] [Accepted: 11/12/2017] [Indexed: 06/08/2023]
Abstract
BACKGROUND Radiotherapy is a mainstay of cancer treatment since decades. Ionizing radiation (IR) is used for destruction of cancer cells and shrinkage of tumors. However, the increase of radioresistance in cancer cells and radiation toxicity to normal tissues are severe concerns. The exposure to radiation generates intracellular reactive oxygen species (ROS), which leads to DNA damage by lipid peroxidation, removal of thiol groups from cellular and membrane proteins, strand breaks and base alterations. HYPOTHESIS Plants have to deal with radiation-induced damage (UV-light of sun, other natural radiation sources). Therefore, it is worth speculating that radioprotective mechanisms have evolved during evolution of life. We hypothesize that natural products from plants may also protect from radiation damage caused as adverse side effects of cancer radiotherapy. METHODS The basis of this systematic review, we searched the relevant literature in the PubMed database. RESULTS Flavonoids, such as genistein, epigallocatechin-3-gallate, epicatechin, apigenin and silibinin mainly act as antioxidant, free radical scavenging and anti-inflammatory compounds, thus, providing cytoprotection in addition to downregulation of several pro-inflammatory cytokines. Comparable effects have been found in phenylpropanoids, especially caffeic acid phenylethylester, curcumin, thymol and zingerone. Besides, resveratrol and quercetin are the most important cytoprotective polyphenols. Their radioprotective effects are mediated by a wide range of mechanisms mainly leading to direct or indirect reduction of cellular stress. Ascorbic acid is broadly used as antioxidant, but it has also shown activity in reducing cellular damage after irradiation mainly due to its antioxidant capabilities. The metal ion chelator, gallic acid, represents another natural product attenuating cellular damage caused by radiation. CONCLUSIONS Some secondary metabolites from plants reveal radioprotective features against cellular damage caused by irradiation. These results warrant further analysis to develop phytochemicals as radioprotectors for clinical use.
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Affiliation(s)
- Nicolas Fischer
- Department of Pharmaceutical Biology, Institute of Pharmacy and Biochemistry, Johannes Gutenberg University, Mainz, Germany
| | - Ean-Jeong Seo
- Department of Pharmaceutical Biology, Institute of Pharmacy and Biochemistry, Johannes Gutenberg University, Mainz, Germany
| | - Thomas Efferth
- Department of Pharmaceutical Biology, Institute of Pharmacy and Biochemistry, Johannes Gutenberg University, Mainz, Germany.
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Sevost'yanov MA, Nasakina EO, Baikin AS, Sergienko KV, Konushkin SV, Kaplan MA, Seregin AV, Leonov AV, Kozlov VA, Shkirin AV, Bunkin NF, Kolmakov AG, Simakov SV, Gudkov SV. Biocompatibility of new materials based on nano-structured nitinol with titanium and tantalum composite surface layers: experimental analysis in vitro and in vivo. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2018; 29:33. [PMID: 29546502 DOI: 10.1007/s10856-018-6039-3] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/07/2017] [Accepted: 03/05/2018] [Indexed: 06/08/2023]
Abstract
A technology for obtaining materials from nanostructured nitinol with titanium- or tantalum-enriched surface layers was developed. Surface layers enriched with titanium or tantalum were shown to provide a decrease in the formation of reactive oxygen species and long-lived protein radicals in comparison to untreated nitinol. It was determined that human peripheral vessel myofibroblasts and human bone marrow mesenchymal stromal cells grown on nitinol bases coated with titanium or tantalum-enriched surface layers exhibit a nearly two times higher mitotic index. Response to implantation of pure nitinol, as well as nano-structure nitinol with titanium or tantalum-enriched surface layers, was expressed though formation of a mature uniform fibrous capsule peripherally to the fragment. The thickness of this capsule in the group of animals subjected to implantation of pure nitinol was 1.5 and 3.0-fold greater than that of the capsule in the groups implanted with nitinol fragments with titanium- or tantalum-enriched layers. No signs of calcinosis in the tissues surrounding implants with coatings were observed. The nature and structure of the formed capsules testify bioinertia of the implanted samples. It was shown that the morphology and composition of the surface of metal samples does not alter following biological tests. The obtained results indicate that nano-structure nitinol with titanium or tantalum enriched surface layers is a biocompatible material potentially suitable for medical applications.
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Affiliation(s)
- Mikhail A Sevost'yanov
- Baikov Institute of Metallurgy and Materials Science, Russian Academy of Sciences, Moscow, Russia
| | - Elena O Nasakina
- Baikov Institute of Metallurgy and Materials Science, Russian Academy of Sciences, Moscow, Russia
| | - Alexander S Baikin
- Baikov Institute of Metallurgy and Materials Science, Russian Academy of Sciences, Moscow, Russia
| | - Konstantin V Sergienko
- Baikov Institute of Metallurgy and Materials Science, Russian Academy of Sciences, Moscow, Russia
| | - Sergey V Konushkin
- Baikov Institute of Metallurgy and Materials Science, Russian Academy of Sciences, Moscow, Russia
| | - Mikhail A Kaplan
- Baikov Institute of Metallurgy and Materials Science, Russian Academy of Sciences, Moscow, Russia
| | - Alexey V Seregin
- Baikov Institute of Metallurgy and Materials Science, Russian Academy of Sciences, Moscow, Russia
- Bauman Moscow State Technical University, Moscow, Russia
| | - Alexander V Leonov
- Baikov Institute of Metallurgy and Materials Science, Russian Academy of Sciences, Moscow, Russia
- Bauman Moscow State Technical University, Moscow, Russia
| | - Valery A Kozlov
- Bauman Moscow State Technical University, Moscow, Russia
- A.M. Prokhorov General Physics Institute, Russian Academy of Sciences, Moscow, Russia
| | - Alexey V Shkirin
- A.M. Prokhorov General Physics Institute, Russian Academy of Sciences, Moscow, Russia
- National Research Nuclear University MEPhI, Moscow, Russia
| | - Nikolai F Bunkin
- Bauman Moscow State Technical University, Moscow, Russia
- A.M. Prokhorov General Physics Institute, Russian Academy of Sciences, Moscow, Russia
| | - Alexey G Kolmakov
- Baikov Institute of Metallurgy and Materials Science, Russian Academy of Sciences, Moscow, Russia
| | - Sergey V Simakov
- Baikov Institute of Metallurgy and Materials Science, Russian Academy of Sciences, Moscow, Russia
| | - Sergey V Gudkov
- A.M. Prokhorov General Physics Institute, Russian Academy of Sciences, Moscow, Russia.
- Depatment of Biophysics, Lobachevsky State University of Nizhni Novgorod, Nizhni Novgorod, Russia.
- Moscow Regional Research and Clinical Institute (MONIKI), Moscow, Russia.
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Burger A, Lichtscheidl I. Stable and radioactive cesium: A review about distribution in the environment, uptake and translocation in plants, plant reactions and plants' potential for bioremediation. THE SCIENCE OF THE TOTAL ENVIRONMENT 2018; 618:1459-1485. [PMID: 29122347 DOI: 10.1016/j.scitotenv.2017.09.298] [Citation(s) in RCA: 86] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/07/2017] [Revised: 09/26/2017] [Accepted: 09/27/2017] [Indexed: 05/23/2023]
Abstract
Radiocesium in water, soil, and air represents a severe threat to human health and the environment. It either acts directly on living organisms from external sources, or it becomes incorporated through the food chain, or both. Plants are at the base of the food chain; it is therefore essential to understand the mechanisms of plants for cesium retention and uptake. In this review we summarize investigations about sources of stable and radioactive cesium in the environment and harmful effects caused by internal and external exposure of plants to radiocesium. Uptake of cesium into cells occurs through molecular mechanisms such as potassium and calcium transporters in the plasma membrane. In soil, bioavailability of cesium depends on the chemical composition of the soil and physical factors such as pH, temperature and tilling as well as on environmental factors such as soil microorganisms. Uptake of cesium occurs also from air through interception and absorption on leaves and from water through the whole submerged surface. We reviewed information about reducing cesium in the vegetation by loss processes, and we extracted transfer factors from the available literature and give an overview over the uptake capacities of 72 plants for cesium from the substratum to the biomass. Plants with high uptake potential could be used to remediate soil and water from radiocesium by accumulation and rhizofiltration. Inside plants, cesium distributes fast between the different plant organs and cells, but cesium in soil is extremely stable and remains for decades in the rhizosphere. Monitoring of contaminated soil therefore has to continue for many decades, and edible plants grown on such soil must continuously be monitored.
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Affiliation(s)
- Anna Burger
- University of Vienna, Core Facility Cell Imaging and Ultrastructure Research, Althanstrasse 14, A-1090 Vienna, Austria.
| | - Irene Lichtscheidl
- University of Vienna, Core Facility Cell Imaging and Ultrastructure Research, Althanstrasse 14, A-1090 Vienna, Austria
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Gajowik A, Dobrzyńska MM. The evaluation of protective effect of lycopene against genotoxic influence of X-irradiation in human blood lymphocytes. RADIATION AND ENVIRONMENTAL BIOPHYSICS 2017; 56:413-422. [PMID: 28913689 PMCID: PMC5655585 DOI: 10.1007/s00411-017-0713-6] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/13/2017] [Accepted: 09/07/2017] [Indexed: 05/07/2023]
Abstract
Many studies suggest that exogenous antioxidants may protect cells against DNA damage caused with ionizing radiation. One of the most powerful antioxidants is lycopene (LYC), a carotenoid derived from tomatoes. The aim of this study was to investigate, using the comet assay, whether LYC can act as protectors/modifiers and prevent DNA damage induced in human blood lymphocytes, as well as to mitigate the effects of radiation exposure. In this project, LYC, dissolved in DMSO at a concentration of 10, 20 or 40 μM/ml of cell suspension, was added to the isolated lymphocytes from human blood at appropriate intervals before or after the X-irradiation at doses of 0.5, 1 and 2 Gy. Cell viability in all groups was maintained at above 70%. The results showed the decrease of DNA damage in cells treated with various concentrations of LYC directly and 1 h before exposure to X-rays compared to the control group exposed to irradiation alone. Contrary results were observed in cells exposed to LYC immediately after exposure to ionizing radiation. The studies confirmed the protective effect of LYC against DNA damage induced by ionizing radiation, but after irradiation the carotenoid did not stimulate of DNA repair and cannot act as modifier. However, supplementation with LYC, especially at lower doses, may be useful in protection from radiation-induced oxidative damage.
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Affiliation(s)
- Aneta Gajowik
- Department of Radiation Protection and Radiobiology, National Institute of Public Health-National Institute of Hygiene, 24 Chocimska Street, 00-791, Warsaw, Poland.
| | - Małgorzata M Dobrzyńska
- Department of Radiation Protection and Radiobiology, National Institute of Public Health-National Institute of Hygiene, 24 Chocimska Street, 00-791, Warsaw, Poland
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Ivanov VE, Usacheva AM, Chernikov AV, Bruskov VI, Gudkov SV. Formation of long-lived reactive species of blood serum proteins induced by low-intensity irradiation of helium-neon laser and their involvement in the generation of reactive oxygen species. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2017; 176:36-43. [DOI: 10.1016/j.jphotobiol.2017.09.012] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/25/2017] [Revised: 09/01/2017] [Accepted: 09/13/2017] [Indexed: 12/29/2022]
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26
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Decrock E, Hoorelbeke D, Ramadan R, Delvaeye T, De Bock M, Wang N, Krysko DV, Baatout S, Bultynck G, Aerts A, Vinken M, Leybaert L. Calcium, oxidative stress and connexin channels, a harmonious orchestra directing the response to radiotherapy treatment? BIOCHIMICA ET BIOPHYSICA ACTA-MOLECULAR CELL RESEARCH 2017; 1864:1099-1120. [DOI: 10.1016/j.bbamcr.2017.02.007] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2016] [Revised: 02/02/2017] [Accepted: 02/04/2017] [Indexed: 02/07/2023]
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Moriwaki T, Okamoto S, Sasanuma H, Nagasawa H, Takeda S, Masunaga SI, Tano K. Cytotoxicity of Tirapazamine (3-Amino-1,2,4-benzotriazine-1,4-dioxide)-Induced DNA Damage in Chicken DT40 Cells. Chem Res Toxicol 2016; 30:699-704. [PMID: 27943678 DOI: 10.1021/acs.chemrestox.6b00417] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Tirapazamine (TPZ) is an anticancer drug with highly selective cytotoxicity toward hypoxic cells. TPZ is converted to a radical intermediate under hypoxic conditions, and this intermediate interacts with intracellular macromolecules, including DNA. TPZ has been reported to indirectly induce DNA double-strand breaks (DSBs) through the formation of various intermediate DNA lesions under hypoxic conditions. Although the topoisomerase II-DNA complex has been identified as one of these intermediates, other lesions have not yet been defined. In order to obtain a deeper understanding of the mechanisms responsible for the selective cytotoxicity of TPZ toward hypoxic cells, its cellular sensitivity was systematically examined with genetically isogenic DNA-repair-deficient mutant DT40 cell lines. Our results showed that tdp1-/-, tdp2-/-, parp1-/-, and aptx1-/- cells displayed hypersensitivity to TPZ only under hypoxic conditions. These results strongly suggest that the accumulation of the topoisomerase I-trapped DNA complex, topoisomerase II-trapped DNA complex, and abortive ligation products with 5'-AMP are the potential causes of TPZ-induced hypoxic cell death. Furthermore, our genetic analysis revealed that under normoxic conditions (as well as hypoxic conditions), TPZ exhibited significant cytotoxicity toward cell lines deficient in homologous recombination, nonhomologous end joining, base excision repair, and translesion synthesis. Ascorbic acid, a radical scavenger, suppressed TPZ-induced cytotoxicity toward normoxic cells. These results suggest the involvement of oxidative DNA damage and DSBs produced by reactive oxygen species generated from superoxide, a byproduct of the oxidation of TPZ radical intermediates in normoxic cells. Collectively, our results demonstrate that TPZ induces oxidative DNA damage under normoxic and hypoxic conditions and selectively introduces abortive topoisomerase-DNA complexes and unligatable DNA ends under hypoxic conditions.
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Affiliation(s)
- Takahito Moriwaki
- Division of Radiation Life Science, Research Reactor Institute, Kyoto University , 2 Asashiro-Nishi, Kumatori-cho, Sennan-gun, Osaka 590-0494, Japan
| | - Saki Okamoto
- Division of Radiation Life Science, Research Reactor Institute, Kyoto University , 2 Asashiro-Nishi, Kumatori-cho, Sennan-gun, Osaka 590-0494, Japan
| | - Hiroyuki Sasanuma
- Department of Radiation Genetics, Graduate School of Medicine, Kyoto University , Yoshida-Konoe-cho, Sakyo-ku, Kyoto 606-8501, Japan
| | - Hideko Nagasawa
- Laboratory of Pharmaceutical and Medicinal Chemistry, Gifu Pharmaceutical University , 1-25-4 Daigaku-nishi, Gifu-shi, Gifu 501-1196, Japan
| | - Shunichi Takeda
- Department of Radiation Genetics, Graduate School of Medicine, Kyoto University , Yoshida-Konoe-cho, Sakyo-ku, Kyoto 606-8501, Japan
| | - Shin-Ichiro Masunaga
- Division of Radiation Life Science, Research Reactor Institute, Kyoto University , 2 Asashiro-Nishi, Kumatori-cho, Sennan-gun, Osaka 590-0494, Japan
| | - Keizo Tano
- Division of Radiation Life Science, Research Reactor Institute, Kyoto University , 2 Asashiro-Nishi, Kumatori-cho, Sennan-gun, Osaka 590-0494, Japan
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28
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van de Walle J, Horemans N, Saenen E, Van Hees M, Wannijn J, Nauts R, van Gompel A, Vangronsveld J, Vandenhove H, Cuypers A. Arabidopsis plants exposed to gamma radiation in two successive generations show a different oxidative stress response. JOURNAL OF ENVIRONMENTAL RADIOACTIVITY 2016; 165:270-279. [PMID: 27814501 DOI: 10.1016/j.jenvrad.2016.10.014] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/22/2016] [Revised: 08/09/2016] [Accepted: 10/20/2016] [Indexed: 05/11/2023]
Abstract
When terrestrial environments get contaminated with long-lived gamma emitting radionuclides, plants that grow in these contaminated areas are exposed to gamma radiation during consecutive generations. Therefore it is important to evaluate the gamma induced stress response in plants in and between generations. The objective of this research is to reveal differences at the level of the antioxidative stress response between generations with a different radiation history. An experiment was conducted in which 7-days old Arabidopsis thaliana plants were exposed for 14 days to four different gamma dose rates: 22 mGy/h, 38 mGy/h, 86 mGy/h and 457 mGy/h. Two different plant groups were used: plants that were not exposed to gamma radiation before (P0) and plants that received the aforementioned gamma treatment during their previous generation (S1). Growth, the concentration of the antioxidants ascorbate and glutathione, a number of antioxidative enzyme activities and their gene transcript levels were analysed. A dose-rate dependent induction was seen for catalase (CAT) and guaiacol peroxidase (GPX) in the roots and for syringaldazine peroxidase (SPX) in the shoots. Differences between the two generations were observed for CAT and GPX in the roots, where a significantly higher activity of these reactive oxygen species (ROS) detoxifying enzymes was observed in the S1 generation. For SPX in the shoots, a dose dependent upregulation was observed in the P0 generation. However, high SPX activities were present for all doses in the S1 generation. These differences in enzyme activity between generations for SPX and GPX and the involvement of these enzymes in cell wall biosynthesis, suggest an important role for cell wall strengthening in the response to gamma irradiation.
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Affiliation(s)
- Jorden van de Walle
- Belgian Nuclear Research Centre, SCK·CEN, Mol, Belgium; Hasselt University, Centre for Environmental Sciences, Agoralaan gebouw D, B-3590, Diepenbeek, Belgium.
| | - Nele Horemans
- Belgian Nuclear Research Centre, SCK·CEN, Mol, Belgium
| | - Eline Saenen
- Belgian Nuclear Research Centre, SCK·CEN, Mol, Belgium
| | - May Van Hees
- Belgian Nuclear Research Centre, SCK·CEN, Mol, Belgium
| | - Jean Wannijn
- Belgian Nuclear Research Centre, SCK·CEN, Mol, Belgium
| | - Robin Nauts
- Belgian Nuclear Research Centre, SCK·CEN, Mol, Belgium
| | | | - Jaco Vangronsveld
- Hasselt University, Centre for Environmental Sciences, Agoralaan gebouw D, B-3590, Diepenbeek, Belgium
| | | | - Ann Cuypers
- Hasselt University, Centre for Environmental Sciences, Agoralaan gebouw D, B-3590, Diepenbeek, Belgium
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29
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Boubriak I, Akimkina T, Polischuk V, Dmitriev A, McCready S, Grodzinsky D. Long term effects of Chernobyl contamination on DNA repair function and plant resistance to different biotic and abiotic stress factors. CYTOL GENET+ 2016. [DOI: 10.3103/s0095452716060049] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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30
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Micronucleated erythrocytes in newborns rats exposed to three different types of ultraviolet-A (UVA) lamps from commonly uses devices. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2016; 165:141-146. [PMID: 27792890 DOI: 10.1016/j.jphotobiol.2016.10.021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2016] [Revised: 09/27/2016] [Accepted: 10/18/2016] [Indexed: 11/23/2022]
Abstract
Exposure to ultraviolet-A (UVA) light can accidentally cause adverse effects in the skin and eyes. UVA induces DNA damage directly by creating pyrimidine dimers or by the formation of reactive oxygen species that can indirectly affect DNA integrity. UVA radiation is emitted by lamps from everyday devices. In adult rats, micronucleated erythrocytes (MNE) are removed from the circulation by the spleen. However, in newborn rats, MNE have been observed in peripheral blood erythrocytes. The objective of this study was to use micronucleus tests to evaluate the DNA damage caused in newborn rats exposed to UVA light from three different types of UVA lamps obtained from commonly used devices: counterfeit detectors, insecticide devices, and equipment used to harden resins for artificial nails. Rat neonates were exposed to UVA lamps for 20min daily for 6days. The neonates were sampled every third day, and the numbers of MNE and micronucleated polychromatic erythrocytes (MNPCE) in the peripheral blood were determined. The rat neonates exposed to the three types of UVA lamps showed increased numbers of MNE and MNPCE from 48h to 144h (P<0.05 and P<0.001 respectively). However, no relationship was observed between the number of MNE and the wattage of the lamps. In conclusion, under these conditions, UVA light exposure induced an increase in MNE without causing any apparent damage to the skin.
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31
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Zhang D, Zhou T, He F, Rong Y, Lee SH, Wu S, Zuo L. Reactive oxygen species formation and bystander effects in gradient irradiation on human breast cancer cells. Oncotarget 2016; 7:41622-41636. [PMID: 27223435 PMCID: PMC5173083 DOI: 10.18632/oncotarget.9517] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2015] [Accepted: 04/18/2016] [Indexed: 11/25/2022] Open
Abstract
Ionizing radiation (IR) in cancer radiotherapy can induce damage to neighboring cells via non-targeted effects by irradiated cells. These so-called bystander effects remain an area of interest as it may provide enhanced efficacy in killing carcinomas with minimal radiation. It is well known that reactive oxygen species (ROS) are ubiquitous among most biological activities. However, the role of ROS in bystander effects has not been thoroughly elucidated. We hypothesized that gradient irradiation (GI) has enhanced therapeutic effects via the ROS-mediated bystander pathways as compared to uniform irradiation (UI). We evaluated ROS generation, viability, and apoptosis in breast cancer cells (MCF-7) exposed to UI (5 Gy) or GI (8-2 Gy) in radiation fields at 2, 24 and 48 h after IR. We found that extracellular ROS release induced by GI was higher than that by UI at both 24 h (p < 0.001) and 48 h (p < 0.001). More apoptosis and less viability were observed in GI when compared to UI at either 24 h or 48 h after irradiation. The mean effective doses (ED) of GI were ~130% (24 h) and ~48% (48 h) higher than that of UI, respectively. Our results suggest that GI is superior to UI regarding redox mechanisms, ED, and toxic dosage to surrounding tissues.
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Affiliation(s)
- Dongqing Zhang
- Radiologic Sciences and Respiratory Therapy Division, School of Health and Rehabilitation Sciences, The Ohio State University College of Medicine, Columbus, OH 43210, USA
- Urology Nevada/Northern Nevada Radiation Oncology, Reno, NV 89521, USA
| | - Tingyang Zhou
- Radiologic Sciences and Respiratory Therapy Division, School of Health and Rehabilitation Sciences, The Ohio State University College of Medicine, Columbus, OH 43210, USA
- Interdisciplinary Biophysics Graduate Program, The Ohio State University, Columbus, OH 43210, USA
| | - Feng He
- Department of Health and Exercise Sciences, Skidmore College, Saratoga Springs, NY 12866, USA
| | - Yi Rong
- Department of Radiation Oncology, The James Cancer Hospital, The Ohio State University Wexner Medical Center, Columbus, OH 43210, USA
| | - Shin Hee Lee
- Edison Biotechnology Institute, Ohio University, Athens, OH 45701, USA
| | - Shiyong Wu
- Edison Biotechnology Institute, Ohio University, Athens, OH 45701, USA
- Department of Chemistry and Biochemistry, Molecular and Cellular Biology Program, Ohio University, Athens, OH 45701, USA
| | - Li Zuo
- Radiologic Sciences and Respiratory Therapy Division, School of Health and Rehabilitation Sciences, The Ohio State University College of Medicine, Columbus, OH 43210, USA
- Davis Heart and Lung Research Institute, The Ohio State University Wexner Medical Center, Columbus, OH 43210, USA
- Interdisciplinary Biophysics Graduate Program, The Ohio State University, Columbus, OH 43210, USA
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Abstract
A classical dogma of radiation biology asserts that all effects of radiation on cells are due to it's direct, immediate actions. But evidence accumulated over the last 50 years shows that radiation also has, indirect ‘non-target’ actions including ‘bystander’ effects in which effects of radiation on cells or media are transported to cells or tissues that were not ‘hit’ by the radiation, leading to changes in their function. This important but heretical recognition of radiation actions has been referred to, probably incorrectly, as a ‘paradigm shift.’ What these signals are and how they induce changes is not well understood. Also not clear is how, or if, bystander effects might affect risk estimates for exposure to low doses of radiation. These issues are reviewed and explored in this series of papers.
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Affiliation(s)
- Charles A Waldren
- Radiation Effects Research Foundations, Hijiyama Park, Minami-ku, Hiroshima, Japan.
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33
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Popov A, Zaichkina SI, Popova NR, Rozanova OM, Romanchenko SP, Ivanova OS, Smirnov AA, Mironova EV, Selezneva II, Ivanov VK. Radioprotective effects of ultra-small citrate-stabilized cerium oxide nanoparticles in vitro and in vivo. RSC Adv 2016. [DOI: 10.1039/c6ra18566e] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
Different radioprotective action mechanisms of CeO2 nanoparticles in vitro and in vivo are demonstrated and discussed.
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Affiliation(s)
- A. L. Popov
- Institute of Theoretical and Experimental Biophysics
- Russian Academy of Sciences
- Moscow region
- 142290 Russia
| | - S. I. Zaichkina
- Institute of Theoretical and Experimental Biophysics
- Russian Academy of Sciences
- Moscow region
- 142290 Russia
| | - N. R. Popova
- Institute of Theoretical and Experimental Biophysics
- Russian Academy of Sciences
- Moscow region
- 142290 Russia
| | - O. M. Rozanova
- Institute of Theoretical and Experimental Biophysics
- Russian Academy of Sciences
- Moscow region
- 142290 Russia
| | - S. P. Romanchenko
- Institute of Theoretical and Experimental Biophysics
- Russian Academy of Sciences
- Moscow region
- 142290 Russia
| | - O. S. Ivanova
- Kurnakov Institute of General and Inorganic Chemistry
- Russian Academy of Sciences
- Moscow
- Russia
| | - A. A. Smirnov
- Institute of Theoretical and Experimental Biophysics
- Russian Academy of Sciences
- Moscow region
- 142290 Russia
| | - E. V. Mironova
- Institute of Theoretical and Experimental Biophysics
- Russian Academy of Sciences
- Moscow region
- 142290 Russia
| | - I. I. Selezneva
- Institute of Theoretical and Experimental Biophysics
- Russian Academy of Sciences
- Moscow region
- 142290 Russia
- Pushchino State Institute of Natural Sciences
| | - V. K. Ivanov
- Kurnakov Institute of General and Inorganic Chemistry
- Russian Academy of Sciences
- Moscow
- Russia
- National Research Tomsk State University
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34
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Hamada N, Fujimichi Y. Role of carcinogenesis related mechanisms in cataractogenesis and its implications for ionizing radiation cataractogenesis. Cancer Lett 2015; 368:262-74. [DOI: 10.1016/j.canlet.2015.02.017] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2014] [Revised: 02/09/2015] [Accepted: 02/10/2015] [Indexed: 12/20/2022]
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35
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Tsai JY, Chen FH, Hsieh TY, Hsiao YY. Effects of indirect actions and oxygen on relative biological effectiveness: estimate of DSB induction and conversion induced by gamma rays and helium ions. JOURNAL OF RADIATION RESEARCH 2015; 56:691-699. [PMID: 25902742 PMCID: PMC4497398 DOI: 10.1093/jrr/rrv025] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/18/2014] [Revised: 03/17/2015] [Accepted: 03/21/2015] [Indexed: 06/04/2023]
Abstract
Clustered DNA damage other than double-strand breaks (DSBs) can be detrimental to cells and can lead to mutagenesis or cell death. In addition to DSBs induced by ionizing radiation, misrepair of non-DSB clustered damage contributes extra DSBs converted from DNA misrepair via pathways for base excision repair and nucleotide excision repair. This study aimed to quantify the relative biological effectiveness (RBE) when DSB induction and conversion from non-DSB clustered damage misrepair were used as biological endpoints. The results showed that both linear energy transfer (LET) and indirect action had a strong impact on the yields for DSB induction and conversion. RBE values for DSB induction and maximum DSB conversion of helium ions (LET = 120 keV/μm) to (60)Co gamma rays were 3.0 and 3.2, respectively. These RBE values increased to 5.8 and 5.6 in the absence of interference of indirect action initiated by addition of 2-M dimethylsulfoxide. DSB conversion was ∼1-4% of the total non-DSB damage due to gamma rays, which was lower than the 10% estimate by experimental measurement. Five to twenty percent of total non-DSB damage due to helium ions was converted into DSBs. Hence, it may be possible to increase the yields of DSBs in cancerous cells through DNA repair pathways, ultimately enhancing cell killing.
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Affiliation(s)
- Ju-Ying Tsai
- Institute of Biotechnology and Department of Life Science, National Tsing Hua University, Hsinchu, Taiwan, Republic of China
| | - Fang-Hsin Chen
- Department of Medical Imaging and Radiological Sciences, Chang Gung University, Kweishan, Taiwan, Republic of China Radiation Biology Research Center, Institute for Radiological Research, Chang Gung University/Chang Gung Memorial Hospital, Linkou, Taoyuan, Taiwan, Republic of China
| | - Tsung-Yu Hsieh
- Department of Medical Imaging and Radiological Sciences, Chung Shan Medical University, No. 110, Section 1, Chien-Kuo N Road, Taichung, 402, Taiwan, Republic of China
| | - Ya-Yun Hsiao
- Department of Medical Imaging and Radiological Sciences, Chung Shan Medical University, No. 110, Section 1, Chien-Kuo N Road, Taichung, 402, Taiwan, Republic of China
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36
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Zúñiga-González GM, Gómez-Meda BC, Zamora-Perez AL, Martínez-González MA, Muñoz de Haro IA, Pérez-Navarro AE, Armendáriz-Borunda J, Gallegos-Arreola MP. Micronucleated erythrocytes in newborns of rat dams exposed to ultraviolet-A light during pregnancy; protection by ascorbic acid supplementation. MUTATION RESEARCH-GENETIC TOXICOLOGY AND ENVIRONMENTAL MUTAGENESIS 2015; 782:36-41. [DOI: 10.1016/j.mrgentox.2015.03.013] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/24/2014] [Revised: 03/14/2015] [Accepted: 03/17/2015] [Indexed: 12/13/2022]
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37
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Kobashigawa S, Kashino G, Suzuki K, Yamashita S, Mori H. Ionizing radiation-induced cell death is partly caused by increase of mitochondrial reactive oxygen species in normal human fibroblast cells. Radiat Res 2015; 183:455-64. [PMID: 25807320 DOI: 10.1667/rr13772.1] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Radiation-induced cell death is thought to be caused by nuclear DNA damage that cannot be repaired. However, in this study we found that a delayed increase of mitochondrial reactive oxygen species (ROS) is responsible for some of the radiation-induced cell death in normal human fibroblast cells. We have previously reported that there is a delayed increase of mitochondrial (·)O2(-), measured using MitoSOX™ Red reagent, due to gamma irradiation. This is dependent on Drp1 localization to mitochondria. Here, we show that knockdown of Drp1 expression reduces the level of DNA double-strand breaks (DSBs) remaining 3 days after 6 Gy irradiation. Furthermore, cells with knockdown of Drp1 expression are more resistant to gamma radiation. We then tested whether the delayed increase of ROS causes DNA damage. The antioxidant, 2-glucopyranoside ascorbic acid (AA-2G), was applied before or after irradiation to inhibit ROS production during irradiation or to inhibit delayed ROS production from mitochondria. Interestingly, 1 h after exposure, the AA-2G treatment reduced the level of DSBs remaining 3 days after 6 Gy irradiation. In addition, irradiated AA-2G-treated cells were more resistant to radiation than the untreated cells. These results indicate that delayed mitochondrial ROS production may cause some of the cell death after irradiation.
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Affiliation(s)
- Shinko Kobashigawa
- a Department of Radiology, School of Medicine, Oita University, 1-1 Idaigaoka, Hasama-machi, Yufu City, Oita, Japan
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38
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Le M, McNeill FE, Seymour C, Rainbow AJ, Mothersill CE. An Observed Effect of Ultraviolet Radiation Emitted from Beta-Irradiated HaCaT Cells upon Non-Beta-Irradiated Bystander Cells. Radiat Res 2015; 183:279-90. [DOI: 10.1667/rr13827.1] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Affiliation(s)
- Michelle Le
- Medical Physics and Applied Radiation Sciences Department, McMaster University, Hamilton, Ontario, Canada L8S 4L8
| | - Fiona E. McNeill
- Medical Physics and Applied Radiation Sciences Department, McMaster University, Hamilton, Ontario, Canada L8S 4L8
| | - Colin Seymour
- Medical Physics and Applied Radiation Sciences Department, McMaster University, Hamilton, Ontario, Canada L8S 4L8
| | - Andrew J. Rainbow
- Department of Biology, McMaster University, Hamilton, Ontario, Canada L8S 4L8
| | - Carmel E. Mothersill
- Medical Physics and Applied Radiation Sciences Department, McMaster University, Hamilton, Ontario, Canada L8S 4L8
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39
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Sato T, Kinoshita M, Yamamoto T, Ito M, Nishida T, Takeuchi M, Saitoh D, Seki S, Mukai Y. Treatment of irradiated mice with high-dose ascorbic acid reduced lethality. PLoS One 2015; 10:e0117020. [PMID: 25651298 PMCID: PMC4317183 DOI: 10.1371/journal.pone.0117020] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2014] [Accepted: 12/17/2014] [Indexed: 02/01/2023] Open
Abstract
Ascorbic acid is an effective antioxidant and free radical scavenger. Therefore, it is expected that ascorbic acid should act as a radioprotectant. We investigated the effects of post-radiation treatment with ascorbic acid on mouse survival. Mice received whole body irradiation (WBI) followed by intraperitoneal administration of ascorbic acid. Administration of 3 g/kg of ascorbic acid immediately after exposure significantly increased mouse survival after WBI at 7 to 8 Gy. However, administration of less than 3 g/kg of ascorbic acid was ineffective, and 4 or more g/kg was harmful to the mice. Post-exposure treatment with 3 g/kg of ascorbic acid reduced radiation-induced apoptosis in bone marrow cells and restored hematopoietic function. Treatment with ascorbic acid (3 g/kg) up to 24 h (1, 6, 12, or 24 h) after WBI at 7.5 Gy effectively improved mouse survival; however, treatments beyond 36 h were ineffective. Two treatments with ascorbic acid (1.5 g/kg × 2, immediately and 24 h after radiation, 3 g/kg in total) also improved mouse survival after WBI at 7.5 Gy, accompanied with suppression of radiation-induced free radical metabolites. In conclusion, administration of high-dose ascorbic acid might reduce radiation lethality in mice even after exposure.
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Affiliation(s)
- Tomohito Sato
- Military Medicine Research Unit, Test and Evaluation Command, Ground Self-Defense Force, Setagaya, Tokyo, Japan
| | - Manabu Kinoshita
- Department of Immunology and Microbiology, National Defense Medical College, Tokorozawa, Saitama, Japan
- * E-mail:
| | - Tetsuo Yamamoto
- Military Medicine Research Unit, Test and Evaluation Command, Ground Self-Defense Force, Setagaya, Tokyo, Japan
| | - Masataka Ito
- Department of Developmental Anatomy and Regenerative Biology, National Defense Medical College, Tokorozawa, Saitama, Japan
| | - Takafumi Nishida
- Military Medicine Research Unit, Test and Evaluation Command, Ground Self-Defense Force, Setagaya, Tokyo, Japan
| | - Masaru Takeuchi
- Department of Ophthalmology, National Defense Medical College, Tokorozawa, Saitama, Japan
| | - Daizoh Saitoh
- Division of Traumatology, Research Institute, National Defense Medical College, Tokorozawa, Saitama, Japan
| | - Shuhji Seki
- Department of Immunology and Microbiology, National Defense Medical College, Tokorozawa, Saitama, Japan
| | - Yasuo Mukai
- Military Medicine Research Unit, Test and Evaluation Command, Ground Self-Defense Force, Setagaya, Tokyo, Japan
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Savu D, Petcu I, Temelie M, Mustaciosu C, Moisoi N. Compartmental stress responses correlate with cell survival in bystander effects induced by the DNA damage agent, bleomycin. Mutat Res 2014; 771:13-20. [PMID: 25771975 DOI: 10.1016/j.mrfmmm.2014.11.005] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2014] [Revised: 11/09/2014] [Accepted: 11/21/2014] [Indexed: 12/18/2022]
Abstract
Physical or chemical stress applied to a cell system trigger a signal cascade that is transmitted to the neighboring cell population in a process known as bystander effect. Despite its wide occurrence in biological systems this phenomenon is mainly documented in cancer treatments. Thus understanding whether the bystander effect acts as an adaptive priming element for the neighboring cells or a sensitization factor is critical in designing treatment strategies. Here we characterize the bystander effects induced by bleomycin, a DNA-damaging agent, and compartmental stress responses associated with this phenomenon. Mouse fibroblasts were treated with increasing concentrations of bleomycin and assessed for DNA damage, cell death and induction of compartmental stress response (endoplasmic reticulum, mitochondrial and cytoplasmic stress). Preconditioned media were used to analyze bystander damage using the same end-points. Bleomycin induced bystander response was reflected primarily in increased DNA damage. This was dependent on the concentration of bleomycin and time of media conditioning. Interestingly, we found that ROS but not NO are involved in the transmission of the bystander effect. Consistent transcriptional down-regulation of the stress response factors tested (i.e. BiP, mtHsp60, Hsp70) occurred in the direct effect indicating that bleomycin might induce an arrest of transcription correlated with decreased survival. We observed the opposite trend in the bystander effect, with specific stress markers appearing increased and correlated with increased survival. These data shed new light on the potential role of stress pathways activation in bystander effects and their putative impact on the pro-survival pro-death balance.
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Affiliation(s)
- Diana Savu
- Horia Hulubei National Institute of Physics and Nuclear Engineering - IFIN HH, 30 Reactorului St., P.O. Box MG-6, Magurele, Bucharest, Romania.
| | - Ileana Petcu
- Horia Hulubei National Institute of Physics and Nuclear Engineering - IFIN HH, 30 Reactorului St., P.O. Box MG-6, Magurele, Bucharest, Romania
| | - Mihaela Temelie
- Horia Hulubei National Institute of Physics and Nuclear Engineering - IFIN HH, 30 Reactorului St., P.O. Box MG-6, Magurele, Bucharest, Romania
| | - Cosmin Mustaciosu
- Horia Hulubei National Institute of Physics and Nuclear Engineering - IFIN HH, 30 Reactorului St., P.O. Box MG-6, Magurele, Bucharest, Romania
| | - Nicoleta Moisoi
- Cell Physiology and Pharmacology Department, University of Leicester, Maurice Shock Building, University Road, Leicester LE1 9HN, UK.
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Sunada S, Fujisawa H, Cartwright IM, Maeda J, Brents CA, Mizuno K, Aizawa Y, Kato TA, Uesaka M. Monoglucosyl-rutin as a potential radioprotector in mammalian cells. Mol Med Rep 2014; 10:10-4. [PMID: 24788331 PMCID: PMC4068723 DOI: 10.3892/mmr.2014.2181] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2013] [Accepted: 03/04/2014] [Indexed: 11/09/2022] Open
Abstract
In the present study, the role of monoglucosyl-rutin as a potential radioprotector was investigated using mammalian cell culture models. Cell survival and DNA damage were assessed using colony formation, sister chromatid exchange and γH2AX assays. It was demonstrated that monoglucosyl-rutin was able to increase cell survival when exposed to ionizing radiation, possibly by decreasing the amount of base damage experienced by the cell. However, the present study also demonstrated that, despite monoglucosyl-rutin exhibiting radioprotective effects at low doses, high doses of monoglucosyl-rutin led to a decrease in plating efficiency and an increased doubling time. This effect may be due to double-strand breaks caused by high concentrations of monoglucosyl-rutin.
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Affiliation(s)
- Shigeaki Sunada
- Department of Nuclear Engineering and Management, School of Engineering, The University of Tokyo, Tokyo 113‑8656, Japan
| | - Hiroshi Fujisawa
- Department of Bioengineering, School of Engineering, The University of Tokyo, Tokyo 113‑8656, Japan
| | - Ian M Cartwright
- Department of Environmental and Radiological Health Sciences, Colorado State University, Fort Collins, CO 80523, USA
| | - Junko Maeda
- Department of Environmental and Radiological Health Sciences, Colorado State University, Fort Collins, CO 80523, USA
| | - Colleen A Brents
- Department of Environmental and Radiological Health Sciences, Colorado State University, Fort Collins, CO 80523, USA
| | - Kazue Mizuno
- Center for Disease Biology and Integrative Medicine, Faculty of Medicine, The University of Tokyo, Tokyo 113‑8656, Japan
| | - Yasushi Aizawa
- Research and Development Group, Toyo Sugar Refining Co., Ltd., Yoto Bldg., Tokyo 103‑0046, Japan
| | - Takamitsu A Kato
- Department of Environmental and Radiological Health Sciences, Colorado State University, Fort Collins, CO 80523, USA
| | - Mitsuru Uesaka
- Department of Nuclear Engineering and Management, School of Engineering, The University of Tokyo, Tokyo 113‑8656, Japan
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Bruskov VI, Popova NR, Ivanov VE, Karp OE, Chernikov AV, Gudkov SV. Formation of long-lived reactive species of blood serum proteins by the action of heat. Biochem Biophys Res Commun 2014; 443:957-61. [DOI: 10.1016/j.bbrc.2013.12.073] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2013] [Accepted: 12/13/2013] [Indexed: 10/25/2022]
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Terashima S, Hosokawa Y, Yoshino H, Yamaguchi M, Nakamura T. Effect of ascorbic acid and X-irradiation on HL-60 human leukemia cells: the kinetics of reactive oxygen species. Oncol Rep 2013; 30:2653-8. [PMID: 24085115 DOI: 10.3892/or.2013.2758] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2013] [Accepted: 08/11/2013] [Indexed: 11/05/2022] Open
Abstract
Ascorbic acid (AsA) treatment is expected to be a potential cancer therapy strategy with few side-effects that can be used alone or in combination with chemotherapy. However, the combination of AsA, a free radical scavenger, with radiation is not clearly understood; conflicting data are reported for cancer cell death. We conducted this study to determine the effect of AsA treatment combined with X-irradiation and the role of reactive oxygen species (ROS) in HL-60 human promyelocytic leukemia cells. Additive cytotoxic effects were observed when the cells were exposed to 2 Gy X-irradiation after 2.5 mM AsA treatment. When catalase was added to the culture with AsA alone, the cytotoxic effects of AsA disappeared. X-irradiation increased intercellular ROS levels and mitochondrial superoxide levels. By contrast, AsA alone and in combination with X-irradiation decreased ROS levels. However, in the presence of catalase neutralizing H2O2, AsA alone or in combination with X-irradiation only slightly decreased the intercellular ROS. Moreover, AsA decreased the mitochondrial membrane potential, which is commonly associated with apoptosis. These results suggest that the reduction of ROS did not result from ROS scavenging by AsA, and AsA induced apoptosis through a ROS-independent pathway. This study reports that a combination of AsA with radiation treatment is effective in cancer therapy when considering ROS in cancer cells.
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Affiliation(s)
- Shingo Terashima
- Department of Radiological Life Sciences, Division of Medical Life Sciences, Hirosaki University Graduate School of Health Sciences, Hirosaki, Aomori 036-8564, Japan
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Ito Y, Kinoshita M, Yamamoto T, Sato T, Obara T, Saitoh D, Seki S, Takahashi Y. A combination of pre- and post-exposure ascorbic acid rescues mice from radiation-induced lethal gastrointestinal damage. Int J Mol Sci 2013; 14:19618-35. [PMID: 24084715 PMCID: PMC3821576 DOI: 10.3390/ijms141019618] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2013] [Revised: 09/09/2013] [Accepted: 09/13/2013] [Indexed: 12/13/2022] Open
Abstract
The development of an effective therapy for radiation-induced gastrointestinal damage is important, because it is currently a major complication of treatment and there are few effective therapies available. Although we have recently demonstrated that pretreatment with ascorbic acid attenuates lethal gastrointestinal damage in irradiated mice, more than half of mice eventually died, thus indicating that better approach was needed. We then investigated a more effective therapy for radiation-induced gastrointestinal damage. Mice receiving abdominal radiation at 13 Gy were orally administered ascorbic acid (250 mg/kg/day) for three days before radiation (pretreatment), one shot of engulfment (250 mg/kg) at 8 h before radiation, or were administered the agent for seven days after radiation (post-treatment). None of the control mice survived the abdominal radiation at 13 Gy due to severe gastrointestinal damage (without bone marrow damage). Neither pretreatment with ascorbic acid (20% survival), engulfment (20%), nor post-treatment (0%) was effective in irradiated mice. However, combination therapy using ascorbic acid, including pretreatment, engulfment and post-treatment, rescued all of the mice from lethal abdominal radiation, and was accompanied by remarkable improvements in the gastrointestinal damage (100% survival). Omitting post-treatment from the combination therapy with ascorbic acid markedly reduced the mouse survival (20% survival), suggesting the importance of post-treatment with ascorbic acid. Combination therapy with ascorbic acid may be a potent therapeutic tool for radiation-induced gastrointestinal damage.
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Affiliation(s)
- Yasutoshi Ito
- Military Medicine Research Unit, Test and Evaluation Command, Ground Self-Defense Force, 1-2-24 Ikejiri, Setagaya, Tokyo 154-8566, Japan; E-Mails: (Y.I.); (T.Y.); (T.S.); (T.O.); (Y.T.)
| | - Manabu Kinoshita
- Department of Immunology and Microbiology, National Defense Medical College, 3-2 Namiki, Tokorozawa, Saitama 359-8613, Japan; E-Mail:
- Author to whom correspondence should be addressed; E-Mail: ; Tel.: +81-4-2995-1541; Fax: +81-4-2996-5194
| | - Tetsuo Yamamoto
- Military Medicine Research Unit, Test and Evaluation Command, Ground Self-Defense Force, 1-2-24 Ikejiri, Setagaya, Tokyo 154-8566, Japan; E-Mails: (Y.I.); (T.Y.); (T.S.); (T.O.); (Y.T.)
| | - Tomohito Sato
- Military Medicine Research Unit, Test and Evaluation Command, Ground Self-Defense Force, 1-2-24 Ikejiri, Setagaya, Tokyo 154-8566, Japan; E-Mails: (Y.I.); (T.Y.); (T.S.); (T.O.); (Y.T.)
| | - Takeyuki Obara
- Military Medicine Research Unit, Test and Evaluation Command, Ground Self-Defense Force, 1-2-24 Ikejiri, Setagaya, Tokyo 154-8566, Japan; E-Mails: (Y.I.); (T.Y.); (T.S.); (T.O.); (Y.T.)
| | - Daizoh Saitoh
- Division of Traumatology, Research Institute, National Defense Medical College, 3-2 Namiki, Tokorozawa, Saitama 359-8613, Japan; E-Mail:
| | - Shuhji Seki
- Department of Immunology and Microbiology, National Defense Medical College, 3-2 Namiki, Tokorozawa, Saitama 359-8613, Japan; E-Mail:
| | - Yukihiro Takahashi
- Military Medicine Research Unit, Test and Evaluation Command, Ground Self-Defense Force, 1-2-24 Ikejiri, Setagaya, Tokyo 154-8566, Japan; E-Mails: (Y.I.); (T.Y.); (T.S.); (T.O.); (Y.T.)
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Kashino G, Tamari Y, Kumagai J, Tano K, Watanabe M. Suppressive effect of ascorbic acid on the mutagenesis induced by the bystander effect through mitochondrial function. Free Radic Res 2013; 47:474-9. [DOI: 10.3109/10715762.2013.791025] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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Hanot M, Boivin A, Malésys C, Beuve M, Colliaux A, Foray N, Douki T, Ardail D, Rodriguez-Lafrasse C. Glutathione depletion and carbon ion radiation potentiate clustered DNA lesions, cell death and prevent chromosomal changes in cancer cells progeny. PLoS One 2012. [PMID: 23185232 PMCID: PMC3502420 DOI: 10.1371/journal.pone.0044367] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
Poor local control and tumor escape are of major concern in head-and-neck cancers treated by conventional radiotherapy or hadrontherapy. Reduced glutathione (GSH) is suspected of playing an important role in mechanisms leading to radioresistance, and its depletion should enable oxidative stress insult, thereby modifying the nature of DNA lesions and the subsequent chromosomal changes that potentially lead to tumor escape. This study aimed to highlight the impact of a GSH-depletion strategy (dimethylfumarate, and l-buthionine sulfoximine association) combined with carbon ion or X-ray irradiation on types of DNA lesions (sparse or clustered) and the subsequent transmission of chromosomal changes to the progeny in a radioresistant cell line (SQ20B) expressing a high endogenous GSH content. Results are compared with those of a radiosensitive cell line (SCC61) displaying a low endogenous GSH level. DNA damage measurements (γH2AX/comet assay) demonstrated that a transient GSH depletion in resistant SQ20B cells potentiated the effects of irradiation by initially increasing sparse DNA breaks and oxidative lesions after X-ray irradiation, while carbon ion irradiation enhanced the complexity of clustered oxidative damage. Moreover, residual DNA double-strand breaks were measured whatever the radiation qualities. The nature of the initial DNA lesions and amount of residual DNA damage were similar to those observed in sensitive SCC61 cells after both types of irradiation. Misrepaired or unrepaired lesions may lead to chromosomal changes, estimated in cell progeny by the cytome assay. Both types of irradiation induced aberrations in nondepleted resistant SQ20B and sensitive SCC61 cells. The GSH-depletion strategy prevented the transmission of aberrations (complex rearrangements and chromosome break or loss) in radioresistant SQ20B only when associated with carbon ion irradiation. A GSH-depleting strategy combined with hadrontherapy may thus have considerable advantage in the care of patients, by minimizing genomic instability and improving the local control.
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Affiliation(s)
- Maïté Hanot
- Laboratoire de Radiobiologie Cellulaire et Moléculaire, EMR3738, Faculté de Médecine Lyon-Sud, Oullins, France
- Fondation Synergie Lyon Cancer, Lyon, France
| | - Anthony Boivin
- Laboratoire de Radiobiologie Cellulaire et Moléculaire, EMR3738, Faculté de Médecine Lyon-Sud, Oullins, France
| | - Céline Malésys
- Laboratoire de Radiobiologie Cellulaire et Moléculaire, EMR3738, Faculté de Médecine Lyon-Sud, Oullins, France
| | - Michaël Beuve
- Institut de Physique Nucléaire de Lyon, UMR 5822, Université Lyon 1, IN2P3/CNRS, Villeurbanne, France
| | - Anthony Colliaux
- Institut de Physique Nucléaire de Lyon, UMR 5822, Université Lyon 1, IN2P3/CNRS, Villeurbanne, France
| | - Nicolas Foray
- Institut National de la Santé et de la Recherche Médicale, U836, Groupe de Radiobiologie, Faculté de Médecine de Lyon-Sud, Oullins, France
| | - Thierry Douki
- Commissariat à l'Energie Atomique (CEA), Service de Chimie Inorganique et Biologique UMR-E 3 (CEA-UJF), Laboratoire Lésions des Acides Nucléiques, Grenoble, France
| | - Dominique Ardail
- Laboratoire de Radiobiologie Cellulaire et Moléculaire, EMR3738, Faculté de Médecine Lyon-Sud, Oullins, France
| | - Claire Rodriguez-Lafrasse
- Laboratoire de Radiobiologie Cellulaire et Moléculaire, EMR3738, Faculté de Médecine Lyon-Sud, Oullins, France
- Unité Médicale d'Oncologie Moléculaire et Transfert, Hospices Civils Lyon, Centre de Biologie Sud, Centre Hospitalier Lyon-Sud, Pierre Bénite, France
- * E-mail:
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Tamari Y, Nawata H, Inoue E, Yoshimura A, Yoshii H, Kashino G, Seki M, Enomoto T, Watanabe M, Tano K. Protective roles of ascorbic acid in oxidative stress induced by depletion of superoxide dismutase in vertebrate cells. Free Radic Res 2012; 47:1-7. [DOI: 10.3109/10715762.2012.734916] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Richi B, Kale RK, Tiku AB. Radio-modulatory effects of Green Tea Catechin EGCG on pBR322 plasmid DNA and murine splenocytes against gamma-radiation induced damage. MUTATION RESEARCH-GENETIC TOXICOLOGY AND ENVIRONMENTAL MUTAGENESIS 2012; 747:62-70. [DOI: 10.1016/j.mrgentox.2012.04.002] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/23/2011] [Revised: 03/20/2012] [Accepted: 04/02/2012] [Indexed: 11/25/2022]
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Bruskov VI, Karp OE, Garmash SA, Shtarkman IN, Chernikov AV, Gudkov SV. Prolongation of oxidative stress by long-lived reactive protein species induced by X-ray radiation and their genotoxic action. Free Radic Res 2012; 46:1280-90. [DOI: 10.3109/10715762.2012.709316] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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50
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Okada T, Kashino G, Nishiura H, Tano K, Watanabe M. Micronuclei formation induced by X-ray irradiation does not always result from DNA double-strand breaks. JOURNAL OF RADIATION RESEARCH 2012; 53:93-100. [PMID: 22240940 DOI: 10.1269/jrr.11147] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
X-ray induced formation of micronuclei is generally thought to result from DNA double-strand breaks (DSBs). However, DNA DSBs inhibit the cell cycle progression that is required for micronucleus formation. In order to reconcile this apparent discrepancy, we investigated whether DNA DSBs induced during the G1 phase could lead to micronucleus formation. We irradiated human embryonic (HE17) cells that had been treated with a radical scavenger, either DMSO or ascorbic acid (AsA), and determined the level of suppression of DNA DSBs or micronuclei. When DNA DSBs were evaluated using 53BP1 foci, treatment with 5 mM AsA did not inhibit the numbers of foci at various intervals after X-ray irradiation; however, treatment with 5 mM or 256 mM DMSO did have a significant inhibitory effect. By contrast, an assay of micronucleus numbers showed that treatment with 5 mM or 256 mM DMSO before X-ray irradiation resulted in almost no inhibition of micronucleus formation, but treatment with 5 mM AsA did have a significant inhibitory effect. These results clearly showed that AsA could suppress micronucleus formation, although it was not effective for suppression of DNA DSBs. Therefore, we conclude that DNA DSBs induced in the G1 phase do not directly lead to micronucleus formation.
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Affiliation(s)
- Takuya Okada
- Laboratory of Radiation Biology, Research Reactor Institute, Kyoto University, Japan
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