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Osipov A, Chigasova A, Yashkina E, Ignatov M, Vorobyeva N, Zyuzikov N, Osipov AN. Early and Late Effects of Low-Dose X-ray Exposure in Human Fibroblasts: DNA Repair Foci, Proliferation, Autophagy, and Senescence. Int J Mol Sci 2024; 25:8253. [PMID: 39125823 PMCID: PMC11311499 DOI: 10.3390/ijms25158253] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2024] [Revised: 07/15/2024] [Accepted: 07/24/2024] [Indexed: 08/12/2024] Open
Abstract
The effects of low-dose radiation exposure remain a controversial topic in radiation biology. This study compares early (0.5, 4, 24, 48, and 72 h) and late (5, 10, and 15 cell passages) post-irradiation changes in γH2AX, 53BP1, pATM, and p-p53 (Ser-15) foci, proliferation, autophagy, and senescence in primary fibroblasts exposed to 100 and 2000 mGy X-ray radiation. The results show that exposure to 100 mGy significantly increased γH2AX, 53BP1, and pATM foci only at 0.5 and 4 h post irradiation. There were no changes in p-p53 (Ser-15) foci, proliferation, autophagy, or senescence up to 15 passages post irradiation at the low dose.
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Affiliation(s)
- Andrey Osipov
- N.N. Semenov Federal Research Center for Chemical Physics, Russian Academy of Sciences, 119991 Moscow, Russia; (A.O.); (A.C.); (E.Y.); (M.I.)
| | - Anna Chigasova
- N.N. Semenov Federal Research Center for Chemical Physics, Russian Academy of Sciences, 119991 Moscow, Russia; (A.O.); (A.C.); (E.Y.); (M.I.)
- Emanuel Institute for Biochemical Physics, Russian Academy of Sciences, 119334 Moscow, Russia
| | - Elizaveta Yashkina
- N.N. Semenov Federal Research Center for Chemical Physics, Russian Academy of Sciences, 119991 Moscow, Russia; (A.O.); (A.C.); (E.Y.); (M.I.)
- State Research Center—Burnasyan Federal Medical Biophysical Center of Federal Medical Biological Agency (SRC—FMBC), 123098 Moscow, Russia
| | - Maxim Ignatov
- N.N. Semenov Federal Research Center for Chemical Physics, Russian Academy of Sciences, 119991 Moscow, Russia; (A.O.); (A.C.); (E.Y.); (M.I.)
- State Research Center—Burnasyan Federal Medical Biophysical Center of Federal Medical Biological Agency (SRC—FMBC), 123098 Moscow, Russia
| | - Natalia Vorobyeva
- N.N. Semenov Federal Research Center for Chemical Physics, Russian Academy of Sciences, 119991 Moscow, Russia; (A.O.); (A.C.); (E.Y.); (M.I.)
- State Research Center—Burnasyan Federal Medical Biophysical Center of Federal Medical Biological Agency (SRC—FMBC), 123098 Moscow, Russia
| | - Nikolay Zyuzikov
- Department of Physics, Faculty of Science and Technology, The University of the West Indies, St. Augustine 999183, Trinidad and Tobago;
| | - Andreyan N. Osipov
- N.N. Semenov Federal Research Center for Chemical Physics, Russian Academy of Sciences, 119991 Moscow, Russia; (A.O.); (A.C.); (E.Y.); (M.I.)
- State Research Center—Burnasyan Federal Medical Biophysical Center of Federal Medical Biological Agency (SRC—FMBC), 123098 Moscow, Russia
- CANDLE Synchrotron Research Institute, 31 Acharyan, Yerevan 0040, Armenia
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Le Reun E, Granzotto A, Pêtre A, Bodgi L, Beldjoudi G, Lacornerie T, Vallet V, Bouchet A, Al-Choboq J, Bourguignon M, Thariat J, Bourhis J, Lartigau E, Foray N. Influence of the Hypersensitivity to Low Dose Phenomenon on the Tumor Response to Hypofractionated Stereotactic Body Radiation Therapy. Cancers (Basel) 2023; 15:3979. [PMID: 37568795 PMCID: PMC10416967 DOI: 10.3390/cancers15153979] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2023] [Revised: 07/30/2023] [Accepted: 08/03/2023] [Indexed: 08/13/2023] Open
Abstract
Stereotactic body radiation therapy (SBRT) has made the hypofractionation of high doses delivered in a few sessions more acceptable. While the benefits of hypofractionated SBRT have been attributed to additional vascular, immune effects, or specific cell deaths, a radiobiological and mechanistic model is still needed. By considering each session of SBRT, the dose is divided into hundreds of minibeams delivering some fractions of Gy. In such a dose range, the hypersensitivity to low dose (HRS) phenomenon can occur. HRS produces a biological effect equivalent to that produced by a dose 5-to-10 times higher. To examine whether HRS could contribute to enhancing radiation effects under SBRT conditions, we exposed tumor cells of different HRS statuses to SBRT. Four human HRS-positive and two HRS-negative tumor cell lines were exposed to different dose delivery modes: a single dose of 0.2 Gy, 2 Gy, 10 × 0.2 Gy, and a single dose of 2 Gy using a non-coplanar isocentric minibeams irradiation mode were delivered. Anti-γH2AX immunofluorescence, assessing DNA double-strand breaks (DSB), was applied. In the HRS-positive cells, the DSB produced by 10 × 0.2 Gy and 2 Gy, delivered by tens of minibeams, appeared to be more severe, and they provided more highly damaged cells than in the HRS-negative cells, suggesting that more severe DSB are induced in the "SBRT modes" conditions when HRS occurs in tumor. Each SBRT session can be viewed as hyperfractionated dose delivery by means of hundreds of low dose minibeams. Under current SBRT conditions (i.e., low dose per minibeam and not using ultra-high dose-rate), the response of HRS-positive tumors to SBRT may be enhanced significantly. Interestingly, similar conclusions were reached with HRS-positive and HRS-negative untransformed fibroblast cell lines, suggesting that the HRS phenomenon may also impact the risk of post-RT tissue overreactions.
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Affiliation(s)
- Eymeric Le Reun
- U1296 Unit, “Radiation: Defense, Health and Environment”, Centre Léon-Bérard, Inserm, 28 Rue Laennec, 69008 Lyon, France; (E.L.R.); (A.G.); (A.P.); (A.B.); (J.A.-C.); (M.B.)
- Service de Radio-Oncologie, Centre Hospitalier Universitaire Vaudois (CHUV), 46 Rue du Bugnon, 1011 Lausanne, Switzerland; (V.V.); (J.B.)
| | - Adeline Granzotto
- U1296 Unit, “Radiation: Defense, Health and Environment”, Centre Léon-Bérard, Inserm, 28 Rue Laennec, 69008 Lyon, France; (E.L.R.); (A.G.); (A.P.); (A.B.); (J.A.-C.); (M.B.)
| | - Adeline Pêtre
- U1296 Unit, “Radiation: Defense, Health and Environment”, Centre Léon-Bérard, Inserm, 28 Rue Laennec, 69008 Lyon, France; (E.L.R.); (A.G.); (A.P.); (A.B.); (J.A.-C.); (M.B.)
- Département de Radiothérapie, Centre Léon-Bérard, 28 Rue Laennec, 69008 Lyon, France;
| | - Larry Bodgi
- Department of Radiation Oncology, American University of Beirut Medical Center, Riad El-Solh, Beirut 1107-2020, Lebanon;
| | - Guillaume Beldjoudi
- Département de Radiothérapie, Centre Léon-Bérard, 28 Rue Laennec, 69008 Lyon, France;
| | - Thomas Lacornerie
- Département de Radiothérapie, Centre Oscar-Lambret, 3 Rue Frédéric Combemale, 59000 Lille, France; (T.L.); (E.L.)
| | - Véronique Vallet
- Service de Radio-Oncologie, Centre Hospitalier Universitaire Vaudois (CHUV), 46 Rue du Bugnon, 1011 Lausanne, Switzerland; (V.V.); (J.B.)
| | - Audrey Bouchet
- U1296 Unit, “Radiation: Defense, Health and Environment”, Centre Léon-Bérard, Inserm, 28 Rue Laennec, 69008 Lyon, France; (E.L.R.); (A.G.); (A.P.); (A.B.); (J.A.-C.); (M.B.)
| | - Joëlle Al-Choboq
- U1296 Unit, “Radiation: Defense, Health and Environment”, Centre Léon-Bérard, Inserm, 28 Rue Laennec, 69008 Lyon, France; (E.L.R.); (A.G.); (A.P.); (A.B.); (J.A.-C.); (M.B.)
| | - Michel Bourguignon
- U1296 Unit, “Radiation: Defense, Health and Environment”, Centre Léon-Bérard, Inserm, 28 Rue Laennec, 69008 Lyon, France; (E.L.R.); (A.G.); (A.P.); (A.B.); (J.A.-C.); (M.B.)
- Département de Biophysique et Médecine Nucléaire, Université Paris Saclay, Versailles St. Quentin en Yvelines, 78035 Versailles, France
| | - Juliette Thariat
- Département de Radiothérapie, Centre François-Baclesse, 3 Avenue du Général Harris, 14076 Caen, France;
| | - Jean Bourhis
- Service de Radio-Oncologie, Centre Hospitalier Universitaire Vaudois (CHUV), 46 Rue du Bugnon, 1011 Lausanne, Switzerland; (V.V.); (J.B.)
| | - Eric Lartigau
- Département de Radiothérapie, Centre Oscar-Lambret, 3 Rue Frédéric Combemale, 59000 Lille, France; (T.L.); (E.L.)
| | - Nicolas Foray
- U1296 Unit, “Radiation: Defense, Health and Environment”, Centre Léon-Bérard, Inserm, 28 Rue Laennec, 69008 Lyon, France; (E.L.R.); (A.G.); (A.P.); (A.B.); (J.A.-C.); (M.B.)
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Berthel E, Pujo-Menjouet L, Le Reun E, Sonzogni L, Al-Choboq J, Chekroun A, Granzotto A, Devic C, Ferlazzo ML, Pereira S, Bourguignon M, Foray N. Toward an Early Diagnosis for Alzheimer's Disease Based on the Perinuclear Localization of the ATM Protein. Cells 2023; 12:1747. [PMID: 37443782 PMCID: PMC10340316 DOI: 10.3390/cells12131747] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2023] [Revised: 06/09/2023] [Accepted: 06/26/2023] [Indexed: 07/15/2023] Open
Abstract
Alzheimer's disease (AD) is the most common neurodegenerative dementia, for which the molecular origins, genetic predisposition and therapeutic approach are still debated. In the 1980s, cells from AD patients were reported to be sensitive to ionizing radiation. In order to examine the molecular basis of this radiosensitivity, the ATM-dependent DNA double-strand breaks (DSB) signaling and repair were investigated by applying an approach based on the radiation-induced ataxia telangiectasia-mutated (ATM) protein nucleoshuttling (RIANS) model. Early after irradiation, all ten AD fibroblast cell lines tested showed impaired DSB recognition and delayed RIANS. AD fibroblasts specifically showed spontaneous perinuclear localization of phosphorylated ATM (pATM) forms. To our knowledge, such observation has never been reported before, and by considering the role of the ATM kinase in the stress response, it may introduce a novel interpretation of accelerated aging. Our data and a mathematical approach through a brand-new model suggest that, in response to a progressive and cumulative stress, cytoplasmic ATM monomers phosphorylate the APOE protein (pAPOE) close to the nuclear membrane and aggregate around the nucleus, preventing their entry in the nucleus and thus the recognition and repair of spontaneous DSB, which contributes to the aging process. Our findings suggest that pATM and/or pAPOE may serve as biomarkers for an early reliable diagnosis of AD on any fibroblast sample.
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Affiliation(s)
- Elise Berthel
- Institut National de la Santé et de la Recherche Médicale, U1296 Research Unit «Radiation: Defense, Health, Environment», Centre Léon-Bérard, 28 Rue Laennec, 69008 Lyon, France; (E.B.); (E.L.R.); (L.S.); (J.A.-C.); (A.G.); (M.L.F.); (M.B.)
- NEOLYS Diagnostics, 7 Allée de l’Europe, 67960 Entzheim, France;
| | - Laurent Pujo-Menjouet
- Université Claude-Bernard Lyon 1, CNRS UMR5208, INRIA, Institut Camille-Jordan, 21 Avenue Claude Bernard, 69603 Villeurbanne, France; (L.P.-M.); (A.C.)
| | - Eymeric Le Reun
- Institut National de la Santé et de la Recherche Médicale, U1296 Research Unit «Radiation: Defense, Health, Environment», Centre Léon-Bérard, 28 Rue Laennec, 69008 Lyon, France; (E.B.); (E.L.R.); (L.S.); (J.A.-C.); (A.G.); (M.L.F.); (M.B.)
| | - Laurène Sonzogni
- Institut National de la Santé et de la Recherche Médicale, U1296 Research Unit «Radiation: Defense, Health, Environment», Centre Léon-Bérard, 28 Rue Laennec, 69008 Lyon, France; (E.B.); (E.L.R.); (L.S.); (J.A.-C.); (A.G.); (M.L.F.); (M.B.)
| | - Joëlle Al-Choboq
- Institut National de la Santé et de la Recherche Médicale, U1296 Research Unit «Radiation: Defense, Health, Environment», Centre Léon-Bérard, 28 Rue Laennec, 69008 Lyon, France; (E.B.); (E.L.R.); (L.S.); (J.A.-C.); (A.G.); (M.L.F.); (M.B.)
| | - Abdennasser Chekroun
- Université Claude-Bernard Lyon 1, CNRS UMR5208, INRIA, Institut Camille-Jordan, 21 Avenue Claude Bernard, 69603 Villeurbanne, France; (L.P.-M.); (A.C.)
| | - Adeline Granzotto
- Institut National de la Santé et de la Recherche Médicale, U1296 Research Unit «Radiation: Defense, Health, Environment», Centre Léon-Bérard, 28 Rue Laennec, 69008 Lyon, France; (E.B.); (E.L.R.); (L.S.); (J.A.-C.); (A.G.); (M.L.F.); (M.B.)
| | - Clément Devic
- Institut National de la Santé et de la Recherche Médicale, U1296 Research Unit «Radiation: Defense, Health, Environment», Centre Léon-Bérard, 28 Rue Laennec, 69008 Lyon, France; (E.B.); (E.L.R.); (L.S.); (J.A.-C.); (A.G.); (M.L.F.); (M.B.)
| | - Mélanie L. Ferlazzo
- Institut National de la Santé et de la Recherche Médicale, U1296 Research Unit «Radiation: Defense, Health, Environment», Centre Léon-Bérard, 28 Rue Laennec, 69008 Lyon, France; (E.B.); (E.L.R.); (L.S.); (J.A.-C.); (A.G.); (M.L.F.); (M.B.)
| | - Sandrine Pereira
- NEOLYS Diagnostics, 7 Allée de l’Europe, 67960 Entzheim, France;
| | - Michel Bourguignon
- Institut National de la Santé et de la Recherche Médicale, U1296 Research Unit «Radiation: Defense, Health, Environment», Centre Léon-Bérard, 28 Rue Laennec, 69008 Lyon, France; (E.B.); (E.L.R.); (L.S.); (J.A.-C.); (A.G.); (M.L.F.); (M.B.)
- Université Paris-Saclay, 78035 Versailles, France
| | - Nicolas Foray
- Institut National de la Santé et de la Recherche Médicale, U1296 Research Unit «Radiation: Defense, Health, Environment», Centre Léon-Bérard, 28 Rue Laennec, 69008 Lyon, France; (E.B.); (E.L.R.); (L.S.); (J.A.-C.); (A.G.); (M.L.F.); (M.B.)
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Koryakina E, Potetnya VI, Troshina M, Baykuzina R, Koryakin S, Lychagin A, Solovev A, Saburov V, Pikalov V, Shegay P, Ivanov S, Kaprin A. Hypersensitivity and Induced Radioresistance in Chinese Hamster Cells Exposed to Radiations with Different LET Values. Int J Mol Sci 2022; 23:ijms23126765. [PMID: 35743215 PMCID: PMC9223725 DOI: 10.3390/ijms23126765] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2022] [Revised: 06/12/2022] [Accepted: 06/16/2022] [Indexed: 12/04/2022] Open
Abstract
We study the impact of radiation LET on manifestation of HRS/IRR response in Chinese hamster cells ovary cells exposed to radiations used in radiotherapy. Earlier we have investigated this response to carbon ions (455 MeV/amu) in the pristine Bragg curve plateau and behind the Bragg peak, 60Co γ-rays, and 14.5 MeV neutrons. Now we present results of cytogenetic metaphase analysis in plateau-phase CHO-K1 cells irradiated with scanning beam protons (83 MeV) at doses < 1 Gy and additional data for 14.5 MeV neutrons. Dose curves for frequency of total chromosome aberrations (CA, protons), paired fragments (protons, neutrons), aberrant cells (neutrons) had typical HRS/IRR structure: HRS region (up to 0.1 and 0.15 Gy), IRR region (0.1−0.6 Gy and 0.15−0.35 Gy) for protons and neutrons, respectively, and regular dose dependence. Taken together with previous results, the data show that LET increase shifts the HRS upper border (from 0.08−0.1 Gy for γ-rays, protons and plateau carbons to 0.12−0.15 Gy for “tail” carbons and neutrons). The IRR regions shortens (0.52−0.4 γ-rays and protons, 0.25 plateau carbons, 0.2 Gy “tail” carbons and neutrons). CA level of IRR increases by 1.5−2.5 times for carbons as compared to γ-rays and protons. Outside HRS/IRR the yield of CA also enhanced with LET increase. The results obtained for different LET radiations suggest that CHO-K1 cells with G1-like CA manifested the general feature of the HRS/IRR phenomena.
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Affiliation(s)
- Ekaterina Koryakina
- A. Tsyb Medical Radiological Research Center, Branch of the National Medical Research Radiological Center of the Ministry of Health of the Russian Federation, 249036 Obninsk, Russia; (V.I.P.); (M.T.); (R.B.); (S.K.); (A.L.); (A.S.); (V.S.); (S.I.)
- Correspondence: ; Tel.: +7-910-5453734
| | - Vladimir I. Potetnya
- A. Tsyb Medical Radiological Research Center, Branch of the National Medical Research Radiological Center of the Ministry of Health of the Russian Federation, 249036 Obninsk, Russia; (V.I.P.); (M.T.); (R.B.); (S.K.); (A.L.); (A.S.); (V.S.); (S.I.)
| | - Marina Troshina
- A. Tsyb Medical Radiological Research Center, Branch of the National Medical Research Radiological Center of the Ministry of Health of the Russian Federation, 249036 Obninsk, Russia; (V.I.P.); (M.T.); (R.B.); (S.K.); (A.L.); (A.S.); (V.S.); (S.I.)
| | - Raisa Baykuzina
- A. Tsyb Medical Radiological Research Center, Branch of the National Medical Research Radiological Center of the Ministry of Health of the Russian Federation, 249036 Obninsk, Russia; (V.I.P.); (M.T.); (R.B.); (S.K.); (A.L.); (A.S.); (V.S.); (S.I.)
| | - Sergey Koryakin
- A. Tsyb Medical Radiological Research Center, Branch of the National Medical Research Radiological Center of the Ministry of Health of the Russian Federation, 249036 Obninsk, Russia; (V.I.P.); (M.T.); (R.B.); (S.K.); (A.L.); (A.S.); (V.S.); (S.I.)
| | - Anatoliy Lychagin
- A. Tsyb Medical Radiological Research Center, Branch of the National Medical Research Radiological Center of the Ministry of Health of the Russian Federation, 249036 Obninsk, Russia; (V.I.P.); (M.T.); (R.B.); (S.K.); (A.L.); (A.S.); (V.S.); (S.I.)
| | - Aleksei Solovev
- A. Tsyb Medical Radiological Research Center, Branch of the National Medical Research Radiological Center of the Ministry of Health of the Russian Federation, 249036 Obninsk, Russia; (V.I.P.); (M.T.); (R.B.); (S.K.); (A.L.); (A.S.); (V.S.); (S.I.)
| | - Vyacheslav Saburov
- A. Tsyb Medical Radiological Research Center, Branch of the National Medical Research Radiological Center of the Ministry of Health of the Russian Federation, 249036 Obninsk, Russia; (V.I.P.); (M.T.); (R.B.); (S.K.); (A.L.); (A.S.); (V.S.); (S.I.)
| | - Vladimir Pikalov
- Institute for High Energy Physics Named by A. A. Logunov of National Research Center «Kurchatov Institute», 142280 Protvino, Russia;
| | - Petr Shegay
- National Medical Research Radiological Center of the Ministry of Health of the Russian Federation, 246036 Obninsk, Russia; (P.S.); (A.K.)
| | - Sergey Ivanov
- A. Tsyb Medical Radiological Research Center, Branch of the National Medical Research Radiological Center of the Ministry of Health of the Russian Federation, 249036 Obninsk, Russia; (V.I.P.); (M.T.); (R.B.); (S.K.); (A.L.); (A.S.); (V.S.); (S.I.)
- Federal State Autonomous Educational Institution of Higher Professional Education “Peoples’ Friendship University of Russia”, Medical Institute, Department of Oncology and Radiology Named after N.P. Kharchenko, 117198 Moscow, Russia
| | - Andrey Kaprin
- National Medical Research Radiological Center of the Ministry of Health of the Russian Federation, 246036 Obninsk, Russia; (P.S.); (A.K.)
- Federal State Autonomous Educational Institution of Higher Professional Education “Peoples’ Friendship University of Russia”, Medical Institute, Department of Oncology and Radiology Named after N.P. Kharchenko, 117198 Moscow, Russia
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Wang Q, Chen Y, Chang H, Hu T, Wang J, Xie Y, Cheng J. The Role and Mechanism of ATM-Mediated Autophagy in the Transition From Hyper-Radiosensitivity to Induced Radioresistance in Lung Cancer Under Low-Dose Radiation. Front Cell Dev Biol 2021; 9:650819. [PMID: 34055781 PMCID: PMC8149741 DOI: 10.3389/fcell.2021.650819] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2021] [Accepted: 04/07/2021] [Indexed: 11/15/2022] Open
Abstract
Objective: This study aimed to investigate the effect of ataxia telangiectasia mutated (ATM)–mediated autophagy on the radiosensitivity of lung cancer cells under low-dose radiation and to further investigate the role of ATM and its specific mechanism in the transition from hyper-radiosensitivity (HRS) to induced radioresistance (IRR). Methods: The changes in the HRS/IRR phenomenon in A549 and H460 cells were verified by colony formation assay. Changes to ATM phosphorylation and cell autophagy in A549 and H460 cells under different low doses of radiation were examined by western blot, polymerase chain reaction (PCR), and electron microscopy. ATM expression was knocked down by short interfering RNA (siRNA) transfection, and ATM-regulated molecules related to autophagy pathways were screened by transcriptome sequencing analysis. The detection results were verified by PCR and western blot. The differential metabolites were screened by transcriptome sequencing and verified by colony formation assay and western blot. The nude mouse xenograft model was used to verify the results of the cell experiments. Results: (1) A549 cells with high expression of ATM showed positive HRS/IRR, whereas H460 cells with low expression of ATM showed negative HRS/IRR. After the expression of ATM decreased, the HRS phenomenon in A549 cells increased, and the radiosensitivity of H460 cells also increased. This phenomenon was associated with the increase in the autophagy-related molecules phosphorylated c-Jun N-terminal kinase (p-JNK) and autophagy/Beclin 1 regulator 1 (AMBRA1). (2) DL-Norvaline, a product of carbon metabolism in cells, inhibited autophagy in A549 cells under low-dose radiation. DL-Norvaline increased the expression levels of ATM, JNK, and AMBRA1 in A549 cells. (3) Mouse experiments confirmed the regulatory role of ATM in autophagy and metabolism and its function in HRS/IRR. Conclusion: ATM may influence autophagy through p-JNK and AMBRA1 to participate in the regulation of the HRS/IRR phenomenon. Autophagy interacts with the cellular carbon metabolite DL-Norvaline to participate in regulating the low-dose radiosensitivity of cells.
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Affiliation(s)
- Qiong Wang
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yangyang Chen
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Haiyan Chang
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Ting Hu
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jue Wang
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yuxiu Xie
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jing Cheng
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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Zaharieva E, Sasatani M, Matsumoto R, Kamiya K. Formation of DNA Damage Foci in Human and Mouse Primary Fibroblasts Chronically Exposed to Gamma Radiation at 0.1 mGy/min. Radiat Res 2021; 196:40-54. [PMID: 33857310 DOI: 10.1667/rade-20-00059.1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2020] [Accepted: 03/11/2021] [Indexed: 11/03/2022]
Abstract
Low-dose-rate radiation exposures and their associated cancer risk are an important concern for radiation protection today. Nevertheless, there is almost no data concerning DNA damage at dose rates below 0.1 mGy/min. In this study, we investigated the formation of DNA damage repair foci under chronic low-dose-rate irradiation relative to acute high-dose-rate irradiation and assessed the magnitude of the dose-rate effect. Four human and four mouse normal fibroblast cell models from different organs were subjected to gamma irradiation at 0.096 mGy/min or 0.81 Gy/min, and dose-response curves were established for the dose range from 0.1 to 0.8 Gy. The results indicate that prolonged low-dose-rate exposures cause modestly increased levels of DNA repair foci, with a strongly supralinear dose-response relationship, where 40-70% of the radiation effect at 1 Gy was already present at the total dose of 0.1 Gy. Thus, compared to acute irradiation, low-dose-rate exposure was 6-9 times less efficient at a total dose of 0.1 Gy, and 10-20 times less efficient at 1 Gy. Comparison between cell models revealed a certain correlation between the presence of persistent, above-background foci at 48 h after irradiation and the sensitivity to low-dose-rate radiation, suggesting that repair capacity plays an important role in the cellular response to chronic irradiation. Given the findings reported here, we propose that establishing detailed dose-response curves and accounting for the repair rates of different cell models are essential steps in elucidating dose-rate effects.
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Affiliation(s)
- Elena Zaharieva
- Department of Experimental Oncology, Research Institute for Radiation Biology and Medicine, Hiroshima University, Hiroshima, Japan
| | - Megumi Sasatani
- Department of Experimental Oncology, Research Institute for Radiation Biology and Medicine, Hiroshima University, Hiroshima, Japan
| | - Ryoga Matsumoto
- Graduate School of Medicine, Hiroshima University, Hiroshima, Japan
| | - Kenji Kamiya
- Department of Experimental Oncology, Research Institute for Radiation Biology and Medicine, Hiroshima University, Hiroshima, Japan
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Restier-Verlet J, El-Nachef L, Ferlazzo ML, Al-Choboq J, Granzotto A, Bouchet A, Foray N. Radiation on Earth or in Space: What Does It Change? Int J Mol Sci 2021; 22:3739. [PMID: 33916740 PMCID: PMC8038356 DOI: 10.3390/ijms22073739] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2021] [Revised: 03/28/2021] [Accepted: 03/29/2021] [Indexed: 12/15/2022] Open
Abstract
After having been an instrument of the Cold War, space exploration has become a major technological, scientific and societal challenge for a number of countries. With new projects to return to the Moon and go to Mars, radiobiologists have been called upon to better assess the risks linked to exposure to radiation emitted from space (IRS), one of the major hazards for astronauts. To this aim, a major task is to identify the specificities of the different sources of IRS that concern astronauts. By considering the probabilities of the impact of IRS against spacecraft shielding, three conclusions can be drawn: (1) The impacts of heavy ions are rare and their contribution to radiation dose may be low during low Earth orbit; (2) secondary particles, including neutrons emitted at low energy from the spacecraft shielding, may be common in deep space and may preferentially target surface tissues such as the eyes and skin; (3) a "bath of radiation" composed of residual rays and fast neutrons inside the spacecraft may present a concern for deep tissues such as bones and the cardiovascular system. Hence, skin melanoma, cataracts, loss of bone mass, and aging of the cardiovascular system are possible, dependent on the dose, dose-rate, and individual factors. This suggests that both radiosusceptibility and radiodegeneration may be concerns related to space exploration. In addition, in the particular case of extreme solar events, radiosensitivity reactions-such as those observed in acute radiation syndrome-may occur and affect blood composition, gastrointestinal and neurologic systems. This review summarizes the specificities of space radiobiology and opens the debate as regards refinements of current radiation protection concepts that will be useful for the better estimation of risks.
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Affiliation(s)
| | | | | | | | | | | | - Nicolas Foray
- Inserm, U1296 Unit, «Radiation: Defense, Health and Environment», Centre Léon-Bérard, 28, Rue Laennec, 69008 Lyon, France; (J.R.-V.); (L.E.-N.); (M.L.F.); (J.A.-C.); (A.G.); (A.B.)
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8
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Słonina D, Kabat D, Biesaga B, Janecka-Widła A, Szatkowski W. Chemopotentiating effects of low-dose fractionated radiation on cisplatin and paclitaxel in cervix cancer cell lines and normal fibroblasts from patients with cervix cancer. DNA Repair (Amst) 2021; 103:103113. [PMID: 33839463 DOI: 10.1016/j.dnarep.2021.103113] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2020] [Revised: 03/24/2021] [Accepted: 03/31/2021] [Indexed: 11/27/2022]
Abstract
The aim of the present study was to compare the effects (assessed by clonogenic survival and γH2AX foci assays) of low-dose fractionated radiation LDFR (4 × 0.125 Gy, 4 × 0.25 Gy and 4 × 0.5 Gy) versus single radiation doses (0.5 Gy, 1 Gy and 2 Gy) on cisplatin and paclitaxel in HRS-negative cervix cancer cell lines SiHa and CaSki to see if the effects of LDFR can emerge in cells that not present low-dose hyper-radiosensitivity (HRS) phenomenon. Additionally, we report the effects in normal fibroblasts (HRS-negative and HRS-positive) from two patients with cervix cancer to see if the chemopotentiating effects of LDFR also apply to normal cells. LDFR (4 × 0.125 Gy, 4 × 0.25 Gy and 4 × 0.5 Gy) as well as single doses (0.5 Gy, 1 Gy and 2 Gy) enhanced cytotoxicity of cisplatin and paclitaxel in all the cell lines. Cisplatin-potentiating effects were maximum with LDFR 4 × 0.5 Gy, and were two-fold greater than those with a single dose of 2 Gy in SiHa, CaSki and HFIB2 cells. Paclitaxel-enhancing effects were also maximum with LDFR 4 × 0.5 Gy, however only in HRS-positive HFIB2 fibroblasts were significantly greater than those with a single dose of 2 Gy. The results demonstrate that LDFR may enhance the effects of cisplatin and paclitaxel in SiHa and CaSki cells, although they lack HRS phenomenon, and show that the magnitude of the potentiating effects of LDFR depends on cytostatic type and the size of low doses. In normal fibroblasts the chemopotentiating effects of LDFR seem to depend on HRS status. In conclusion, the unique enhancing effects of LDFR on cisplatin in cervical cancer cell lines, even when HRS negative, suggest that all patients with cervical cancer may benefit from the addition of LDFR to adjuvant cisplatin-based chemotherapy.
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Affiliation(s)
- Dorota Słonina
- Center for Translational Research and Molecular Biology of Cancer, Maria Sklodowska-Curie National Research Institute of Oncology Gliwice Branch, Poland.
| | - Damian Kabat
- Department of Medical Physics, Maria Sklodowska-Curie National Research Institute of Oncology Cracow Branch, Cracow, Poland
| | - Beata Biesaga
- Center for Translational Research and Molecular Biology of Cancer, Maria Sklodowska-Curie National Research Institute of Oncology Gliwice Branch, Poland; Department of Tumour Pathology, Maria Sklodowska-Curie National Research Institute of Oncology Cracow Branch, Cracow, Poland
| | - Anna Janecka-Widła
- Department of Tumour Pathology, Maria Sklodowska-Curie National Research Institute of Oncology Cracow Branch, Cracow, Poland
| | - Wiktor Szatkowski
- Department of Gynecologic Oncology, Maria Sklodowska-Curie National Research Institute of Oncology Cracow Branch, Cracow, Poland
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β-Elemene enhances radiosensitivity in non-small-cell lung cancer by inhibiting epithelial-mesenchymal transition and cancer stem cell traits via Prx-1/NF-kB/iNOS signaling pathway. Aging (Albany NY) 2020; 13:2575-2592. [PMID: 33316778 PMCID: PMC7880315 DOI: 10.18632/aging.202291] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2019] [Accepted: 09/03/2020] [Indexed: 12/14/2022]
Abstract
Radiation therapy is widely used to treat a variety of malignant tumors, including non-small-cell lung cancer (NSCLC). However, ionizing radiation (IR) paradoxically promotes radioresistance, metastasis and recurrence by inducing epithelial-mesenchymal transition (EMT) and cancer stem cells (CSCs). Here, we developed two NSCLC radioresistant (RR) cell lines (A549-RR and H1299-RR) and characterized their motility, cell cycle distribution, DNA damage, and CSC production using migration/invasion assays, flow cytometry, comet assays, and sphere formation, respectively. We also evaluated their tumorigenicity in vivo using a mouse xenograft model. We found that invasion and spheroid formation by A549-RR and H1299-RR cells were increased as compared to their parental cells. Furthermore, as compared to radiation alone, the combination of β-elemene administration with radiation increased the radiosensitivity of A549 cells and reduced expression of EMT/CSC markers while inhibiting the Prx-1/NF-kB /iNOS signaling pathway. Our findings suggest that NSCLC radioresistance is associated with EMT, enhanced CSC phenotypes, and activation of the Prx-1/NF-kB/iNOS signaling pathway. They also suggest that combining β-elemene with radiation may be an effective means of overcoming radioresistance in NSCLC.
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