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Mollaee PF, Azimian H, Ghadim NZ, Dolat E, Sheykhoo A, Bahreyni-Toossi MT. The role of intrinsic radiosensitivity in the low-dose adaptive response induction in human peripheral blood mononuclear cells. J Cancer Res Ther 2023; 19:S737-S742. [PMID: 38384048 DOI: 10.4103/jcrt.jcrt_978_22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2022] [Accepted: 08/06/2022] [Indexed: 02/23/2024]
Affiliation(s)
- Parisa Fakour Mollaee
- Department of Medical Physics, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Hosein Azimian
- Medical Physics Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Navid Zafari Ghadim
- Department of Medical Physics, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Elham Dolat
- Department of Medical Physics, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Asma Sheykhoo
- Medical Physics Department, Reza Radiation Oncology Center, Mashhad, Iran
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2
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Komova O, Krasavin E, Nasonova E, Mel’nikova L, Shmakova N, Cunha M, Testa E, Beuve M. Relationship between radioadaptive response and individual radiosensitivity to low doses of gamma radiation: an extended study of chromosome damage in blood lymphocytes of three donors. Int J Radiat Biol 2017; 94:54-61. [DOI: 10.1080/09553002.2018.1399226] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Olga Komova
- Laboratory of Radiation Biology, Department of Radiation Cytology, Joint Institute for Nuclear Research (JINR), Dubna, Russia
| | - Eugene Krasavin
- Laboratory of Radiation Biology, Department of Radiation Cytology, Joint Institute for Nuclear Research (JINR), Dubna, Russia
| | - Elena Nasonova
- Laboratory of Radiation Biology, Department of Radiation Cytology, Joint Institute for Nuclear Research (JINR), Dubna, Russia
| | - Larisa Mel’nikova
- Laboratory of Radiation Biology, Department of Radiation Cytology, Joint Institute for Nuclear Research (JINR), Dubna, Russia
| | - Nina Shmakova
- Laboratory of Radiation Biology, Department of Radiation Cytology, Joint Institute for Nuclear Research (JINR), Dubna, Russia
| | - Micaela Cunha
- Department of Radiation Sciences, Université de Lyon, Lyon, France
- Department of Radiation Sciences, Institut de Physique Nucléaire de Lyon, Villeurbanne, France
| | - Etienne Testa
- Department of Radiation Sciences, Université de Lyon, Lyon, France
- Department of Radiation Sciences, Institut de Physique Nucléaire de Lyon, Villeurbanne, France
| | - Michaël Beuve
- Department of Radiation Sciences, Université de Lyon, Lyon, France
- Department of Radiation Sciences, Institut de Physique Nucléaire de Lyon, Villeurbanne, France
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3
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Ramachandran EN, Karuppasamy CV, Kumar VA, Soren DC, Kumar PRV, Koya PKM, Jaikrishan G, Das B. Radio-adaptive response in peripheral blood lymphocytes of individuals residing in high-level natural radiation areas of Kerala in the southwest coast of India. Mutagenesis 2017; 32:267-273. [PMID: 27831478 DOI: 10.1093/mutage/gew057] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
The present study investigates whether the chronic low-dose radiation exposure induces an in vivo radio-adaptive response in individuals from high-level natural radiation areas (HLNRA) of the Kerala coast. Peripheral blood samples from 54 adult male individuals aged between 26 and 65 years were collected for the study with written informed consent. Each of the whole blood sample was divided into three, one was sham irradiated, second and third was exposed to challenging doses of 1.0 and 2.0 Gy gamma radiation, respectively. Cytokinesis-block micronucleus (CBMN) assay was employed to study the radio-adaptive response. Seventeen individuals were from normal-level natural radiation area (NLNRA ≤1.5 mGy/year) and 37 from HLNRA (> 1.5 mGy/year). Based on the annual dose received, individuals from HLNRA were further classified into low-dose group (LDG, 1.51-5.0 mGy/year, N = 19) and high-dose group (HDG >5.0 mGy/year, N = 18). Basal frequency of micronucleus (MN) was comparable across the three dose groups (NLNRA, LDG and HDG, P = 0.64). Age of the individuals showed a significant effect on the frequency of MN after challenging dose exposures. The mean frequency of MN was significantly lower in elder (>40 years) individuals from HDG of HLNRA as compared to the young (≤40 years) individuals after 1.0 Gy (P < 0.001) and 2.0 Gy (P = 0.002) of challenging doses. However, young and elder individuals within NLNRA and LDG of HLNRA showed similar frequency of MN after the challenging dose exposures. Thus, increased level of chronic low-dose radiation (>5.0 mGy/year) seems to act as a priming dose resulting in the induction of an in vivo radio-adaptive response in elder individuals of the Kerala coast.
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Affiliation(s)
- E N Ramachandran
- Low Level Radiation Research Laboratory (LLRRL), Radiation Biology and Health Sciences Division (RB&HSD), Bio-Science Group, Bhabha Atomic Research Centre (BARC), Beach Road, Kollam 691 001, Kerala and
| | - C V Karuppasamy
- Low Level Radiation Research Laboratory (LLRRL), Radiation Biology and Health Sciences Division (RB&HSD), Bio-Science Group, Bhabha Atomic Research Centre (BARC), Beach Road, Kollam 691 001, Kerala and
| | - V Anil Kumar
- Low Level Radiation Research Laboratory (LLRRL), Radiation Biology and Health Sciences Division (RB&HSD), Bio-Science Group, Bhabha Atomic Research Centre (BARC), Beach Road, Kollam 691 001, Kerala and
| | - D C Soren
- Low Level Radiation Research Section (LLRRS), RB&HSD, Bio-Science Group, BARC, Trombay, Mumbai 400 085, India
| | - P R Vivek Kumar
- Low Level Radiation Research Laboratory (LLRRL), Radiation Biology and Health Sciences Division (RB&HSD), Bio-Science Group, Bhabha Atomic Research Centre (BARC), Beach Road, Kollam 691 001, Kerala and
| | - P K M Koya
- Low Level Radiation Research Laboratory (LLRRL), Radiation Biology and Health Sciences Division (RB&HSD), Bio-Science Group, Bhabha Atomic Research Centre (BARC), Beach Road, Kollam 691 001, Kerala and
| | - G Jaikrishan
- Low Level Radiation Research Laboratory (LLRRL), Radiation Biology and Health Sciences Division (RB&HSD), Bio-Science Group, Bhabha Atomic Research Centre (BARC), Beach Road, Kollam 691 001, Kerala and
| | - Birajalaxmi Das
- Low Level Radiation Research Section (LLRRS), RB&HSD, Bio-Science Group, BARC, Trombay, Mumbai 400 085, India
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Zhang YR, Li YY, Wang JY, Wang HW, Wang HN, Kang XM, Xu WQ. Synthesis and Characterization of a Rosmarinic Acid Derivative that Targets Mitochondria and Protects against Radiation-Induced Damage In Vitro. Radiat Res 2017; 188:264-275. [PMID: 28657498 DOI: 10.1667/rr14590.1] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2023]
Abstract
Mitochondrial dysfunction plays an important role in gamma-radiation-induced mediating oxidative stress. Scavenging radiation-induced reactive oxygen species (ROS) can help mitochondria to maintain their physiological function. Rosmarinic acid is a polyphenol antioxidant that can scavenge radiation-induced ROS, but the structure prevents it from accumulating in mitochondria. In this study, we designed and synthesized a novel rosmarinic acid derivative (Mito-RA) that could use the mitochondrial membrane potential to enter the organelle and scavenge ROS. The DCFH-DA assay revealed that Mito-RA was more effective than rosmarinic acid at scavenging ROS. DNA double-strand breaks, chromosomal aberration, micronucleus and comet assays demonstrated the ability of Mito-RA to protect against radiation-induced oxidative stress in vitro. These findings demonstrate the potential of Mito-RA as an antioxidant, which can penetrate mitochondria, scavenge ROS and protect cells against radiation-induced oxidative damage.
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Affiliation(s)
- Yu-Rui Zhang
- a Tianjin Key Laboratory of Molecular Nuclear Medicine, Institute of Radiation Medicine, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin, 300192, China
| | - Yuan-Yuan Li
- a Tianjin Key Laboratory of Molecular Nuclear Medicine, Institute of Radiation Medicine, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin, 300192, China
| | - Jun-Ying Wang
- b Department of Physics, School of Sciences and Tianjin Collaborative Innovation Center of Chemical Science and Engineering, Tianjin University, Tianjin 300350, China
| | - Hua-Wei Wang
- a Tianjin Key Laboratory of Molecular Nuclear Medicine, Institute of Radiation Medicine, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin, 300192, China
| | - Hua-Nan Wang
- a Tianjin Key Laboratory of Molecular Nuclear Medicine, Institute of Radiation Medicine, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin, 300192, China
| | - Xiao-Meng Kang
- a Tianjin Key Laboratory of Molecular Nuclear Medicine, Institute of Radiation Medicine, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin, 300192, China
| | - Wen-Qing Xu
- a Tianjin Key Laboratory of Molecular Nuclear Medicine, Institute of Radiation Medicine, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin, 300192, China
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5
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Ng CYP, Kong EY, Kobayashi A, Suya N, Uchihori Y, Cheng SH, Konishi T, Yu KN. Non-induction of radioadaptive response in zebrafish embryos by neutrons. JOURNAL OF RADIATION RESEARCH 2016; 57:210-219. [PMID: 26850927 PMCID: PMC4915534 DOI: 10.1093/jrr/rrv089] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/20/2015] [Revised: 09/13/2015] [Accepted: 11/03/2015] [Indexed: 06/05/2023]
Abstract
In vivo neutron-induced radioadaptive response (RAR) was studied using zebrafish (Danio rerio) embryos. The Neutron exposure Accelerator System for Biological Effect Experiments (NASBEE) facility at the National Institute of Radiological Sciences (NIRS), Japan, was employed to provide 2-MeV neutrons. Neutron doses of 0.6, 1, 25, 50 and 100 mGy were chosen as priming doses. An X-ray dose of 2 Gy was chosen as the challenging dose. Zebrafish embryos were dechorionated at 4 h post fertilization (hpf), irradiated with a chosen neutron dose at 5 hpf and the X-ray dose at 10 hpf. The responses of embryos were assessed at 25 hpf through the number of apoptotic signals. None of the neutron doses studied could induce RAR. Non-induction of RAR in embryos having received 0.6- and 1-mGy neutron doses was attributed to neutron-induced hormesis, which maintained the number of damaged cells at below the threshold for RAR induction. On the other hand, non-induction of RAR in embryos having received 25-, 50- and 100-mGy neutron doses was explained by gamma-ray hormesis, which mitigated neutron-induced damages through triggering high-fidelity DNA repair and removal of aberrant cells through apoptosis. Separate experimental results were obtained to verify that high-energy photons could disable RAR. Specifically, 5- or 10-mGy X-rays disabled the RAR induced by a priming dose of 0.88 mGy of alpha particles delivered to 5-hpf zebrafish embryos against a challenging dose of 2 Gy of X-rays delivered to the embryos at 10 hpf.
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Affiliation(s)
- Candy Y P Ng
- Department of Physics and Materials Science, City University of Hong Kong, Tat Chee Ave., Kowloon Tong, Hong Kong
| | - Eva Y Kong
- Department of Physics and Materials Science, City University of Hong Kong, Tat Chee Ave., Kowloon Tong, Hong Kong
| | - Alisa Kobayashi
- Research, Development and Support Center, National Institute of Radiological Sciences, 4-9-1 Anagawa, Inage, Chiba 263-8555, Japan Graduate School of Comprehensive Human Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8575, Japan
| | - Noriyoshi Suya
- Research, Development and Support Center, National Institute of Radiological Sciences, 4-9-1 Anagawa, Inage, Chiba 263-8555, Japan
| | - Yukio Uchihori
- Research, Development and Support Center, National Institute of Radiological Sciences, 4-9-1 Anagawa, Inage, Chiba 263-8555, Japan
| | - Shuk Han Cheng
- Department of Biomedical Sciences, City University of Hong Kong, Tat Chee Ave., Kowloon Tong, Hong Kong State Key Laboratory in Marine Pollution, City University of Hong Kong, Tat Chee Ave., Kowloon Tong, Hong Kong
| | - Teruaki Konishi
- Research, Development and Support Center, National Institute of Radiological Sciences, 4-9-1 Anagawa, Inage, Chiba 263-8555, Japan
| | - Kwan Ngok Yu
- Department of Physics and Materials Science, City University of Hong Kong, Tat Chee Ave., Kowloon Tong, Hong Kong State Key Laboratory in Marine Pollution, City University of Hong Kong, Tat Chee Ave., Kowloon Tong, Hong Kong
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6
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Bannister LA, Serran ML, Mantha RR. Low-Dose Gamma Radiation Does Not Induce an Adaptive Response for Micronucleus Induction in Mouse Splenocytes. Radiat Res 2015; 184:533-44. [DOI: 10.1667/rr14102.1] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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7
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Toprani SM, Das B. Radio-adaptive response of base excision repair genes and proteins in human peripheral blood mononuclear cells exposed to gamma radiation. Mutagenesis 2015; 30:663-76. [PMID: 25958388 DOI: 10.1093/mutage/gev032] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
Radio-adaptive response is a mechanism whereby a low-dose exposure (priming dose) induces resistance to a higher dose (challenging dose) thus significantly reducing its detrimental effects. Radiation-induced DNA damage gets repaired through various DNA repair pathways in human cells depending upon the type of lesion. The base excision repair (BER) pathway repairs radiation-induced base damage, abasic sites and single-strand breaks in cellular DNA. In the present study, an attempt has been made to investigate the involvement of BER genes and proteins in the radio-adaptive response in human resting peripheral blood mononuclear cells (PBMC). Venous blood samples were collected from 20 randomly selected healthy male individuals with written informed consent. PBMC were isolated and irradiated at a priming dose of 0.1 Gy followed 4h later with a challenging dose of 2.0 Gy (primed cells). Quantitation of DNA damage was done using the alkaline comet assay immediately and expression profile of BER genes and proteins were studied 30 min after the challenging dose using real-time quantitative polymerase chain reaction and western blot, respectively. The overall result showed significant (P ≤ 0.05) reduction of DNA damage in terms of percentage of DNA in tail (%T) with a priming dose of 0.1 Gy followed by a challenging dose of 2.0 Gy after 4 h. Twelve individuals showed significant (P ≤ 0.05) reduction in %T whereas eight individuals showed marginal reduction in DNA damage that was not statistically significant. However, at the transcriptional level, BER genes such as APE1, FEN1 and LIGASE1 showed significant (P ≤ 0.05) up-regulation in both groups. Significant (P ≤ 0.05) up-regulation was also observed at the protein level for OGG1, APE1, MBD4, FEN1 and LIGASE1 in primed cells. Up-regulation of some BER genes and proteins such as APE1, FEN1 and LIGASE1 in primed cells of resting PBMC is suggestive of active involvement of the BER pathway in radio-adaptive response.
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Affiliation(s)
- Sneh M Toprani
- Low Level Radiation Research Section, Radiation Biology and Health Sciences Division, Bio-Sciences Group, Bhabha Atomic Research Centre, Trombay, Mumbai 400 085, India
| | - Birajalaxmi Das
- Low Level Radiation Research Section, Radiation Biology and Health Sciences Division, Bio-Sciences Group, Bhabha Atomic Research Centre, Trombay, Mumbai 400 085, India
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Fetisova EK, Antoschina MM, Cherepanynets VD, Izumov DS, Kireev II, Kireev RI, Lyamzaev KG, Riabchenko NI, Chernyak BV, Skulachev VP. Radioprotective effects of mitochondria-targeted antioxidant SkQR1. Radiat Res 2014; 183:64-71. [PMID: 25496313 DOI: 10.1667/rr13708.1] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
We show here that mitochondria-targeted antioxidant composed of plastoquinone conjugated through hydrocarbon linker with cationic rhodamine 19 (SkQR1) protected against nuclear DNA damage induced by gamma radiation in K562 erythroleukemia cells. We also demonstrate that SkQR1 prevented the early (1 h postirradiation) accumulation of phosphorylated histone H2AX (γ-H2AX) an indicator of DNA double-strand break formation, as well as the radiation-induced increase in chromosomal aberrations. These data suggested that nuclear DNA damage induced by gamma radiation may be mediated by mitochondrial reactive oxygen species (ROS) production. We show that SkQR1 suppressed delayed accumulation of ROS 32 h after irradiation probably by inhibiting mitochondrial ROS-induced ROS release mechanisms. This suggests that mitochondria-targeted antioxidants may protect cells from the late consequences of radiation exposure related to delayed oxidative stress. We have previously reported that SkQRl is the substrate of multidrug resistance pump P-glycoproten (Pgp 170) and selectively protects Pgp 170-negative cells against oxidative stress. In line with this finding, we demonstrate here that SkQR1 did not protect Pgp170-positive K562 subline against DNA damage induced by gamma radiation. The selective radioprotection of normal Pgp 170-negative cells by mitochondria-targeted antioxidants could be a promising strategy to increase the efficiency of radiotherapy for multidrug-resistant tumors.
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Affiliation(s)
- Elena K Fetisova
- a Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, Vorobyevy Gory 1, Moscow 119991, Russia
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9
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Sannino A, Zeni O, Romeo S, Massa R, Gialanella G, Grossi G, Manti L, Vijayalaxmi, Scarfì MR. Adaptive response in human blood lymphocytes exposed to non-ionizing radiofrequency fields: resistance to ionizing radiation-induced damage. JOURNAL OF RADIATION RESEARCH 2014; 55:210-7. [PMID: 23979077 PMCID: PMC3951069 DOI: 10.1093/jrr/rrt106] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/21/2013] [Revised: 07/25/2013] [Accepted: 07/27/2013] [Indexed: 03/19/2024]
Abstract
The aim of this preliminary investigation was to assess whether human peripheral blood lymphocytes which have been pre-exposed to non-ionizing radiofrequency fields exhibit an adaptive response (AR) by resisting the induction of genetic damage from subsequent exposure to ionizing radiation. Peripheral blood lymphocytes from four healthy donors were stimulated with phytohemagglutinin for 24 h and then exposed for 20 h to 1950 MHz radiofrequency fields (RF, adaptive dose, AD) at an average specific absorption rate of 0.3 W/kg. At 48 h, the cells were subjected to a challenge dose (CD) of 1.0 or 1.5 Gy X-irradiation (XR, challenge dose, CD). After a 72 h total culture period, cells were collected to examine the incidence of micronuclei (MN). There was a significant decrease in the number of MN in lymphocytes exposed to RF + XR (AD + CD) as compared with those subjected to XR alone (CD). These observations thus suggested a RF-induced AR and induction of resistance to subsequent damage from XR. There was variability between the donors in RF-induced AR. The data reported in our earlier investigations also indicated a similar induction of AR in human blood lymphocytes that had been pre-exposed to RF (AD) and subsequently treated with a chemical mutagen, mitomycin C (CD). Since XR and mitomycin-C induce different kinds of lesions in cellular DNA, further studies are required to understand the mechanism(s) involved in the RF-induced adaptive response.
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Affiliation(s)
- Anna Sannino
- CNR – Institute for Electromagnetic Sensing of the Environment, via Diocleziano 328, 80124, Napoli, Italy
| | - Olga Zeni
- CNR – Institute for Electromagnetic Sensing of the Environment, via Diocleziano 328, 80124, Napoli, Italy
- National Institute of Nuclear Physics, Section of Napoli, via Cintia, 80126, Napoli, Italy
| | - Stefania Romeo
- CNR – Institute for Electromagnetic Sensing of the Environment, via Diocleziano 328, 80124, Napoli, Italy
| | - Rita Massa
- CNR – Institute for Electromagnetic Sensing of the Environment, via Diocleziano 328, 80124, Napoli, Italy
- National Institute of Nuclear Physics, Section of Napoli, via Cintia, 80126, Napoli, Italy
- Department of Physics, University of Naples Federico II, CMSA via Cintia, 80126, Napoli, Italy
| | - Giancarlo Gialanella
- National Institute of Nuclear Physics, Section of Napoli, via Cintia, 80126, Napoli, Italy
- Department of Physics, University of Naples Federico II, CMSA via Cintia, 80126, Napoli, Italy
| | - Gianfranco Grossi
- National Institute of Nuclear Physics, Section of Napoli, via Cintia, 80126, Napoli, Italy
- Department of Physics, University of Naples Federico II, CMSA via Cintia, 80126, Napoli, Italy
- Centre of Radioprotection and Health Physics, University of Naples Federico II, via Cintia, 80126, Napoli, Italy
| | - Lorenzo Manti
- National Institute of Nuclear Physics, Section of Napoli, via Cintia, 80126, Napoli, Italy
- Department of Physics, University of Naples Federico II, CMSA via Cintia, 80126, Napoli, Italy
| | - Vijayalaxmi
- Department of Radiology, University of Texas Health Science Centre, 7703 Floyd Curl Drive – MC 7800, San Antonio, TX 78229-3900, USA
| | - Maria Rosaria Scarfì
- CNR – Institute for Electromagnetic Sensing of the Environment, via Diocleziano 328, 80124, Napoli, Italy
- National Institute of Nuclear Physics, Section of Napoli, via Cintia, 80126, Napoli, Italy
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Sannino A, Zeni O, Sarti M, Romeo S, Reddy SB, Belisario MA, Prihoda TJ, Vijayalaxmi, Scarfi MR. Induction of adaptive response in human blood lymphocytes exposed to 900 MHz radiofrequency fields: Influence of cell cycle. Int J Radiat Biol 2011; 87:993-9. [DOI: 10.3109/09553002.2011.574779] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Sannino A, Sarti M, Reddy SB, Prihoda TJ, Vijayalaxmi, Scarfì MR. Induction of adaptive response in human blood lymphocytes exposed to radiofrequency radiation. Radiat Res 2009; 171:735-42. [PMID: 19580480 DOI: 10.1667/rr1687.1] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
The incidence of micronuclei was evaluated to assess the induction of an adaptive response to non-ionizing radiofrequency (RF) radiation in peripheral blood lymphocytes collected from five different human volunteers. After stimulation with phytohemagglutinin for 24 h, the cells were exposed to an adaptive dose of 900 MHz RF radiation used for mobile communications (at a peak specific absorption rate of 10 W/kg) for 20 h and then challenged with a single genotoxic dose of mitomycin C (100 ng/ml) at 48 h. Lymphocytes were collected at 72 h to examine the frequency of micronuclei in cytokinesis-blocked binucleated cells. Cells collected from four donors exhibited the induction of adaptive response (i.e., responders). Lymphocytes that were pre-exposed to 900 MHz RF radiation had a significantly decreased incidence of micronuclei induced by the challenge dose of mitomycin C compared to those that were not pre-exposed to 900 MHz RF radiation. These preliminary results suggested that the adaptive response can be induced in cells exposed to non-ionizing radiation. A similar phenomenon has been reported in cells as well as in animals exposed to ionizing radiation in several earlier studies. However, induction of adaptive response was not observed in the remaining donor (i.e., non-responder). The incidence of micronuclei induced by the challenge dose of mitomycin C was not significantly different between the cells that were pre-exposed and unexposed to 900 MHz RF radiation. Thus the overall data indicated the existence of heterogeneity in the induction of an adaptive response between individuals exposed to RF radiation and showed that the less time-consuming micronucleus assay can be used to determine whether an individual is a responder or non-responder.
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Affiliation(s)
- Anna Sannino
- CNR-Institute for Electromagnetic Sensing of Environment, Napoli, Italy
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Pelevina II, Aleschenko AV, Antoschina MM, Boeva OV, Gotlib VY, Kudryashova OV, Lizunova EY, Osipov AN, Ryabchenko NI, Semenova LP, Serebryanyi AM. Adaptive response in different mitotic cycles after irradiation. ACTA ACUST UNITED AC 2009. [DOI: 10.1134/s1990519x09010106] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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13
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Ryabchenko NI, Nasonova VA, Fesenko EV, Kondrashova TV, Antoschina MM, Pavlov VV, Ryabikina NV. Aberrant and multiaberrant (rogue) cells in peripheral lymphocytes of Hodgkin's lymphoma patients after chemotherapy. Mutat Res 2006; 601:61-70. [PMID: 16828123 DOI: 10.1016/j.mrfmmm.2006.05.037] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2006] [Revised: 05/16/2006] [Accepted: 05/26/2006] [Indexed: 05/10/2023]
Abstract
We analyzed spontaneous chromosome lesions in peripheral lymphocytes cultured from Hodgkin's lymphoma (HL) patients before and after cytostatic chemotherapy. The mean aberration frequency was significantly higher in HL patients after chemotherapy (7.20+/-0.58 per 100 metaphases) than in non-treated HL patients (4.80+/-0.54), and in non-treated patients than in healthy subjects (2.12+/-0.13). In lymphocytes of HL patients, who received chemotherapy, we found, in addition to ordinary aberrant cells, a large number of multiaberrant (or rogue) cells, i.e. metaphases carrying multiple (at least four) chromosome-type exchange aberrations. Rogue cells were found in 15 out of 18 chemotherapeutically treated HL patients (in total, 60 rogue cells per 5,568 scored cells), whereas in 30 non-treated patients only 1 rogue cell was found (per 4,988 scored cells). No correlation was found between the yield of rogue cells and the aberration frequency in ordinary aberrant cells. Aberration spectra (ratios of chromatid- to chromosome-type aberrations and of breaks to exchanges) were essentially different in ordinary aberrant and multiaberrant cells. These data, as well as analysis of cellular distributions of aberrations, implied independent induction of chromosome damage in ordinary aberrant and rogue cells. Analysis of aberration patterns in diploid and polyploid rogue metaphases belonging to the first, second, and third in vitro division indicated that rogue cells could be formed both in vivo and in vitro, and could survive at least two rounds of in vitro replication, given blocked chromosome segregation. These results suggested that formation of rogue cells, unlike ordinary aberrant cells, was triggered by events other than direct DNA and/or chromosome lesions. A hypothesis regarding disrupted apoptosis as a candidate mechanism for rogue cell formation seems to be most suitable for interpretation of our data. Cultured lymphocytes of chemotherapeutically treated HL patients may represent a model system for further examination of the multiaberrancy phenomenon.
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Affiliation(s)
- Nikolay I Ryabchenko
- Medical Radiological Research Center, Russian Academy of Medical Sciences, Ul Koroleva 4, Obninsk, Russian Federation
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Sorensen KJ, Attix CM, Christian AT, Wyrobek AJ, Tucker JD. Adaptive response induction and variation in human lymphoblastoid cell lines. Mutat Res 2002; 519:15-24. [PMID: 12160888 DOI: 10.1016/s1383-5718(02)00110-9] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
Adaptive response is a term used to describe the ability of a low, priming dose of ionizing radiation to modify the effects of a subsequent higher, challenge dose, but it has been observed to be highly variable in both presence and magnitude. To examine this variability, 10 human lymphoblastoid cell lines were screened for adaptability to 137Cs radiation by determining the frequency of micronuclei in binucleated cells. Of these, six adapted, three did not adapt and one was synergistic. The assay was then repeated on each of the cell lines to test for reproducibility. Five cell lines showed the same result both times; four of these adapted and one did not. To determine whether fluctuations in the cell cycle distribution in the irradiated population of cells could alter the adaptive response, and therefore explain some of the observed variability, two of the cell lines were tested for adaptation after enriching the population, by synchronization, for a given cell cycle stage. In both cell lines, the direction of the response was altered when the distribution of cells within the cell cycle was changed, suggesting that the adaptive response can be affected by cell cycle stage at the time of irradiation.
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Affiliation(s)
- Karen J Sorensen
- Biology and Biotechnology Research Program, L-448 Lawrence Livermore National Laboratory, P.O. Box 808, 7000 East Ave., CA 94551-9900, USA.
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15
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Iyer R, Lehnert BE. Low dose, low-LET ionizing radiation-induced radioadaptation and associated early responses in unirradiated cells. Mutat Res 2002; 503:1-9. [PMID: 12052498 DOI: 10.1016/s0027-5107(02)00068-4] [Citation(s) in RCA: 145] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
Numerous investigators have reported that irradiation of cells with a low dose of ionizing radiation (IR) can induce a condition of enhanced radioresistance, i.e. a radioadaptive response. In this report, we investigated the hypothesis that a radioadaptive bystander effect may be induced in unirradiated cells by a transmissible factor(s) present in the supernatants of cells exposed to low dose gamma-rays. Normal human lung fibroblasts (HFL-1) were irradiated with a 1 cGy dose of gamma-rays and their supernatants were transferred to unirradiated HFL-1 as a bystander cell model. Compared with the directly irradiated cells, such treatment resulted in increased clonogenic survival following subsequent gamma-irradiation with 2 and 4 Gy. This radioadaptive bystander effect was found to be preceded by early decreases in cellular levels of TP53 protein, increase in intracellular ROS, and increase in the redox and DNA repair protein AP-endonuclease (APE). The demonstration that radioadaptation can occur in unirradiated cells via a fluid-phase, transferable factor(s) adds to the complexity of the current understanding of mechanisms by which radioadaptive responses can be induced by low dose, low-LET IR.
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Affiliation(s)
- Rashi Iyer
- Bioscience Division, MS 888, Los Alamos National Laboratory, Los Alamos, NM 87545, USA
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Gajendiran N, Tanaka K, Kumaravel TS, Kamada N. Neutron-induced adaptive response studied in go human lymphocytes using the comet assay. JOURNAL OF RADIATION RESEARCH 2001; 42:91-101. [PMID: 11393893 DOI: 10.1269/jrr.42.91] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
This study demonstrates that cells adapted to ionizing radiation developed reduced initial DNA damage when compared to non-adapted cells. The results were obtained by subjecting in vitro irradiated whole blood from 10 healthy volunteers (including 2 A-bomb survivors carrying 1.5-2 Gy in vivo exposure) in an unstimulated condition (G0) using the comet assay. The intensity of DNA damage was assessed by computing the 'tail moment'. Adaptive response (AR) was noticed in only donor 3, as indicated by reduced tail moment when the blood samples received priming + challenging doses over a 4 h interval. The priming dose was either 0.01 Gy 137Cs gamma-rays or 0.0025 Gy 252Cf neutrons. The delivered challenging dose was either 1 Gy 60Co g-rays or 0.25 Gy 252Cf neutrons. The irradiation was conducted using the HIRRAC facility. A prior exposure to 0.0025 Gy 252Cf neutrons nullified the excess tail moment caused by 0.25 Gy neutrons given during a 4 h gap. In a similar way, 0.01 Gy 137Cs gamma-rays offered a cross-adaptive response to the neutron challenging dose. The tail moment of A-bomb survivors after in vitro irradiation was less than that of the age-matched control and, at the same time, was not influenced by the priming dose. An altered subset and the immunological status of blood after A-bomb exposure were cited as possible factors. Because AR can affect the outcome of RBE, its individual variability only emphasizes the need to have individual biodosimetry for better risk assessment, especially in planning for a long space voyage.
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Affiliation(s)
- N Gajendiran
- Department of Cancer Cytogenetics, Research Institute for Radiation Biology and Medicine, Hiroshima University, Hiroshima 734-8553, Japan.
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