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Bekal M, Sun L, Ueno S, Moritake T. Neurobehavioral effects of acute low-dose whole-body irradiation. J Radiat Res 2021; 62:804-811. [PMID: 33982114 PMCID: PMC8438260 DOI: 10.1093/jrr/rrab026] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/25/2020] [Revised: 01/06/2021] [Indexed: 06/12/2023]
Abstract
Radiation exposure has multiple effects on the brain, behavior and cognitive functions. It has been reported that high-dose (>20 Gy) radiation-induced behavior and cognitive aberration partly associated with severe tissue destruction. Low-dose (<3 Gy) exposure can occur in radiological disasters and cerebral endovascular treatment. However, only a few reports analyzed behavior and cognitive functions after low-dose irradiation. This study was undertaken to assess the relationship between brain neurochemistry and behavioral disruption in irradiated mice. The irradiated mice (0.5 Gy, 1 Gy and 3 Gy) were tested for alteration in their normal behavior over 10 days. A serotonin (5-HT), Dopamine, gamma-Aminobutyric acid (GABA) and cortisol analysis was carried out in blood, hippocampus, amygdala and whole brain tissue. There was a significant decline in the exploratory activity of mice exposed to 3 Gy and 1 Gy radiation in an open field test. We observed a significant short-term memory loss in 3 Gy and 1 Gy irradiated mice in Y-Maze. Mice exposed to 1 Gy and 3 Gy radiation exhibited increased anxiety in an elevated plus maze (EPM). The increased anxiety and memory loss patterns were also seen in 0.5 Gy irradiated mice, but the results were not statistically significant. In this study we observed that neurotransmitters are significantly altered after irradiation, but the neuronal cells in the hippocampus were not significantly affected. This study suggests that the low-dose radiation-induced cognitive impairment may be associated with the neurochemical in low-dose irradiation and unlike the high-dose scenario might not be directly related to the morphological changes in the brain.
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Affiliation(s)
- Mahesh Bekal
- Department of Radiobiology and Hygiene Management, Institute of Industrial Ecological Sciences, University of Occupational and Environmental Health, Iseigaoka Yahatanishi-ku, Kitakyushu, Fukuoka 807-8555, Japan
| | - Lue Sun
- Health and Medical Research Institute, Department of Life Science and Biotechnology, National Institute of Advanced Industrial Science and Technology (AIST), Central 6, 1-1-1 Higashi, Tsukuba, Ibaraki 305-8566, Japan
| | - Susumu Ueno
- Department of Occupational Toxicology, Institute of Industrial Ecological Sciences, University of Occupational and Environmental Health, Iseigaoka Yahatanishi-ku, Kitakyushu, Fukuoka 807-8555, Japan
| | - Takashi Moritake
- Corresponding author. Department of Radiobiology and Hygiene Management, Institute of Industrial Ecological Sciences, University of Occupational and Environmental Health, Japan, Iseigaoka Yahatanishi-ku, Kitakyushu, Fukuoka 807-8555, Japan, E-mail:
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2
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Abd-ElRaouf A, Nada AS, Mohammed NEDA, Amer HA, Abd-ElRahman SS, Abdelsalam RM, Salem HA. Low dose gamma irradiation attenuates cyclophosphamide-induced cardiotoxicity in rats: role of NF-κB signaling pathway. Int J Radiat Biol 2021; 97:632-641. [PMID: 33635746 DOI: 10.1080/09553002.2021.1893856] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
PURPOSE Cyclophosphamide (Cyp) is one of the most commonly used, wide spectrum chemotherapeutic agents. Cyp has multi-organ toxicities that are dose limiting, thus it's mostly used in chemotherapeutic combinations. Radiation is well known as a hazardous sort of energy, recent studies are interested in studying the beneficial therapeutic effects of low-dose gamma radiation. This study examined the protective effect of two different doses/dose-rates of irradiation either alone or combined with telmisartan against Cyp-induced cardiotoxicity. MATERIALS AND METHODS Rats were divided into seven groups; (1): Control, (2): Cyp, (3-4): 0.05 Gy low dose rate (LDR) irradiation, 0.25 Gy high dose rate (HDR) irradiation, respectively, prior to Cyp dose, (5-7): telmisartan either alone or with 0.05 Gy LDR-irradiation or 0.25 Gy HDR-irradiation, respectively, prior to Cyp dose. The current investigation studied the effect of Cyp alone or combined with different treatment regimens on serum cTn-I and LDH, nuclear factor-κB (NF-κB) pathway (p65/IκB/IKK-α/IKK-ß) in the myocardium. Pro-inflammatory cytokines IL-1ß, IL-6 and TNF-α were assessed in addition to histopathological examination of the heart. RESULTS Low-dose irradiation attenuated cardiac enzymes, pro-inflammatory cytokines, NF-κB content, and histology, in both low and HDRs. Furthermore, the combination of low-dose irradiation with telmisartan (an angiotensin-II receptor type-1 blocker and a known cardio-protective drug) offered the best histological results. CONCLUSIONS Low-dose irradiation-induced amelioration is partially but not completely through canonical activation of NF-κB, and may have another atypical pathway. While telmisartan probably ameliorates NF-κB totally through canonical pathway.
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Affiliation(s)
- Amira Abd-ElRaouf
- National Centre of Radiation Research and Technology, Egyptian Atomic Energy Authority, Cairo, Egypt
| | - Ahmed S Nada
- National Centre of Radiation Research and Technology, Egyptian Atomic Energy Authority, Cairo, Egypt
| | - Nour El-Din A Mohammed
- National Centre of Radiation Research and Technology, Egyptian Atomic Energy Authority, Cairo, Egypt
| | - Hany A Amer
- National Centre for Nuclear Safety and Radiation Control, Atomic Energy Authority, Cairo, Egypt
| | - Sahar S Abd-ElRahman
- Department of Pathology, Faculty of Veterinary, Cairo University, Giza Square, Egypt
| | - Rania M Abdelsalam
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Cairo University, Cairo, Egypt
| | - Hesham A Salem
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Cairo University, Cairo, Egypt
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3
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Yanagimachi M, Kato K, Iguchi A, Sasaki K, Kiyotani C, Koh K, Koike T, Sano H, Shigemura T, Muramatsu H, Okada K, Inoue M, Tabuchi K, Nishimura T, Mizukami T, Nunoi H, Imai K, Kobayashi M, Morio T. Hematopoietic Cell Transplantation for Chronic Granulomatous Disease in Japan. Front Immunol 2020; 11:1617. [PMID: 32849547 PMCID: PMC7403177 DOI: 10.3389/fimmu.2020.01617] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2020] [Accepted: 06/17/2020] [Indexed: 12/05/2022] Open
Abstract
Hematopoietic cell transplantation (HCT) is established as a curative treatment for severe chronic granulomatous disease (CGD). However, outcomes of HCT for CGD in Japan had not been precisely reported. We evaluated the outcome of HCT for CGD in Japan by means of a nationwide survey. A total of 91 patients (86 males and 5 females) with CGD who received HCT between 1992 and 2013 was investigated. Their median age at HCT was 11 years (0–39). Sixty-four patients had X-linked CGD caused by CYBB gene mutations, 13 had autosomal recessive CGD (7 CYBA and 6 NCF2), and 14 were genetically undetermined. Seventy patients are still alive at a median follow-up of 38.9 (3.7–230) months. Three-year OS and EFS was 73.7 and 67.6%, respectively. Twenty-one patients died mainly from transplant-related mortality. The cumulative incidence of grade II to IV acute GVHD and extensive chronic GVHD was 27.2 and 17.9%, respectively. Risk factors for EFS after HCT for CGD were age >30 years (P < 0.01), non-CYBB gene mutations (P < 0.01) and CBT (P < 0.01). Regarding the reduced intensity conditioning (RIC) regimen, risk factors for EFS included anti-thymocyte globulin (P = 0.048) and not using low-dose irradiation therapy (P < 0.01), in addition to the preceding risk factors. We report outcomes of HCT for CGD in Japan. Future studies are needed to improve such outcomes, especially for patients harboring non-CYBB gene mutations and suffering from adult CGD. A RIC regimen including low-dose irradiation may be a good option to explore further.
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Affiliation(s)
- Masakatsu Yanagimachi
- Department of Pediatrics, Tokyo Medical and Dental University, Tokyo, Japan.,Department of Hematology/Oncology, Kanagawa Children's Medical Center, Yokohama, Japan
| | - Koji Kato
- Department of Hematology and Oncology, Children's Medical Center, Japanese Red Cross Nagoya First Hospital, Nagoya, Japan.,Central Japan Cord Blood Bank, Seto, Japan
| | - Akihiro Iguchi
- Department of Pediatrics, Hokkaido University Hospital, Sapporo, Japan
| | - Koji Sasaki
- Department of Pediatrics, Yokohama City University, Yokohama, Japan
| | - Chikako Kiyotani
- Children's Cancer Center, National Center for Child Health and Development, Tokyo, Japan
| | - Katsuyoshi Koh
- Department of Hematology/Oncology, Saitama Children's Medical Center, Saitama, Japan
| | - Takashi Koike
- Department of Pediatrics, Tokai University School of Medicine, Isehara, Japan
| | - Hideki Sano
- Department of Pediatric Oncology, Fukushima Medical University Hospital, Fukushima, Japan
| | - Tomonari Shigemura
- Department of Pediatrics, Shinshu University School of Medicine, Nagano, Japan
| | - Hideki Muramatsu
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Keiko Okada
- Department of Pediatric Hematology/Oncology, Osaka City General Hospital, Osaka, Japan
| | - Masami Inoue
- Department of Pediatric Hematology/Oncology, Osaka Women's and Children's Hospital, Osaka, Japan
| | - Ken Tabuchi
- Division of Pediatrics, Tokyo Metropolitan Cancer and Infectious Disease Center Komagome Hospital, Tokyo, Japan
| | - Toyoki Nishimura
- Division of Pediatrics, Developmental and Urological-Reproductive Medicine Faculty of Medicine, University of Miyazaki, Miyazaki, Japan
| | - Tomoyuki Mizukami
- Division of Pediatrics, Developmental and Urological-Reproductive Medicine Faculty of Medicine, University of Miyazaki, Miyazaki, Japan.,Department of Pediatrics, NHO Kumamoto Medical Center, Kumamoto, Japan
| | - Hiroyuki Nunoi
- Division of Pediatrics, Developmental and Urological-Reproductive Medicine Faculty of Medicine, University of Miyazaki, Miyazaki, Japan
| | - Kohsuke Imai
- Department of Pediatrics, Tokyo Medical and Dental University, Tokyo, Japan
| | - Masao Kobayashi
- Department of Pediatrics, Hiroshima University Graduate School of Biomedical & Health Sciences, Hiroshima, Japan
| | - Tomohiro Morio
- Department of Pediatrics, Tokyo Medical and Dental University, Tokyo, Japan
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Matsumoto KI, Ueno M, Nakanishi I, Indo HP, Majima HJ. Effects of low-dose X-ray irradiation on melanin-derived radicals in mouse hair and skin. J Clin Biochem Nutr 2020; 67:174-178. [PMID: 33041515 PMCID: PMC7533861 DOI: 10.3164/jcbn.20-34] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2020] [Accepted: 03/21/2020] [Indexed: 11/22/2022] Open
Abstract
To clarify a possible index for long-term and low-dose irradiation, the effects of repeated low-dose X-ray irradiation on the amount of melanin-derived radicals in mouse hair and tail skin were investigated. Eight-week-old female C3H/HeSlc mice were irradiated by X-rays at a dose of 100 mGy/day 5 days/week for 12 weeks. Similarly, a 4-week irradiation experiment was carried out at 500 mGy/day for C3H/HeSlc mice, or at 10, 100, and 500 mGy/day for 8-week-old female C57BL/6NCrSlc mice. The hair sample (~10 mg) was weighed accurately and stuffed into a plastic tube. The 2-cm tip of the tail was sampled and lyophilized. Melanin-derived radicals in hair and tail samples were measured by X-band electron paramagnetic resonance spectrometry. After X-ray irradiation at 100 mGy/day for 12 weeks, no difference was found in the amount of melanin-derived radicals in the hair of the irradiated and non-irradiated groups. X-ray irradiation at 500 mGy/day for 4 weeks increased the amount of melanin-derived radicals in hair compared with the non-irradiated group, but the baseline amount of melanin-derived radicals in hair was varied. The amount of melanin-derived radicals in the tail skin dose-dependently increased. Melanin-derived radicals in skin may be an endogenous marker for long-term and low-dose irradiation.
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Affiliation(s)
- Ken-Ichiro Matsumoto
- Quantitative RedOx Sensing Group, Department of Basic Medical Sciences for Radiation Damages, National Institute of Radiological Sciences, Quantum Medical Science Directorate, 4-9-1 Anagawa, Inage-ku, Chiba 263-8555, Japan.,Quantum-state Controlled MRI Group, Institute for Quantum Life Science, National Institutes for Quantum and Radiological Science and Technology, 4-9-1 Anagawa, Inage-ku, Chiba 263-8555, Japan
| | - Megumi Ueno
- Quantitative RedOx Sensing Group, Department of Basic Medical Sciences for Radiation Damages, National Institute of Radiological Sciences, Quantum Medical Science Directorate, 4-9-1 Anagawa, Inage-ku, Chiba 263-8555, Japan
| | - Ikuo Nakanishi
- Quantitative RedOx Sensing Group, Department of Basic Medical Sciences for Radiation Damages, National Institute of Radiological Sciences, Quantum Medical Science Directorate, 4-9-1 Anagawa, Inage-ku, Chiba 263-8555, Japan.,Quantum-state Controlled MRI Group, Institute for Quantum Life Science, National Institutes for Quantum and Radiological Science and Technology, 4-9-1 Anagawa, Inage-ku, Chiba 263-8555, Japan
| | - Hiroko P Indo
- Department of Oncology, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima 890-8544, Japan.,Amanogawa Galactic Astronomy Research Center, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima 890-8544, Japan
| | - Hideyuki J Majima
- Department of Oncology, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima 890-8544, Japan.,Amanogawa Galactic Astronomy Research Center, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima 890-8544, Japan.,Department of Space Environmental Medicine, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima 890-8544, Japan
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5
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Liu Q, Zhang D, Qian H, Chu Y, Yang Y, Shao J, Xu Q, Liu B. Superior Antitumor Efficacy of IFN-α2b-Incorporated Photo-Cross-Linked Hydrogels Combined with T Cell Transfer and Low-Dose Irradiation Against Gastric Cancer. Int J Nanomedicine 2020; 15:3669-3680. [PMID: 32547021 PMCID: PMC7261665 DOI: 10.2147/ijn.s249174] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2020] [Accepted: 05/07/2020] [Indexed: 12/18/2022] Open
Abstract
Introduction The exhaustion and poor homing of activated lymphocytes are critical obstacles in adoptive cell immunotherapy for solid tumors. In order to effectively deliver immune cells into tumors, we encapsulated interferon-α2b (IFN-α2b) into macroporous hydrogels as an enhancement factor and utilized low-dose irradiation (LDI) as a tumoral attractor of T cells. Methods Hydroxypropyl cellulose hydrogels were prepared by irradiation techniques, and the cross-sectional microstructure was characterized by scanning electron microscopy. The synergistic antitumor mechanism of combination of IFN-α2b and CIK cells was evaluated by detecting the expression of activation marker CD69 on CIK cell surface and IFN-γ production by CIK cells. The in vivo antitumor activity of IFN-α2b-incorporated hydroxypropyl cellulose hydrogels combined with CIK and radiation was evaluated in an MKN-45 xenografted nude mice model. Results The bioactivity of IFN-α2b was well maintained in ultraviolet-reactive, rapidly cross-linkable hydroxypropyl cellulose hydrogels. In vitro studies demonstrated IFN-α2b-activated T cells, as evidenced by upregulating early activation marker CD69 and secretion inflammatory cytokine IFN-γ. In vivo real-time image showed our hydrogels kept a higher amount of drug delivery at the tumor site for a long time compared with free drug injection. Low-dose irradiation promoted T cell accumulation and infiltration in subcutaneous tumors. Combination of IFN-α2b-loaded hydrogels (Gel-IFN) with T cells and LDI exhibited higher efficacy to eradicate human gastric cancer xenograted tumors with less proliferating cells and more necrotic regions compared with IFN-α2b or T cells alone. Discussion HPC hydrogels kept the activity of IFN-α2b and stably release of IFN-α2b to stimulate T cells for a long time. At the same time, low-dose radiation recruits T cells into tumors. This innovative integration mode of IFN-α2b-loaded hydrogels and radiotherapy offers a potent strategy to improve the therapeutic outcome of T cell therapy.
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Affiliation(s)
- Qin Liu
- The Comprehensive Cancer Centre of Drum Tower Hospital, Medical School of Nanjing University, Clinical Cancer Institute of Nanjing University, Nanjing, People's Republic of China
| | - Dinghu Zhang
- The Comprehensive Cancer Centre of Drum Tower Hospital, Medical School of Nanjing University, Clinical Cancer Institute of Nanjing University, Nanjing, People's Republic of China.,Department of Radiology, Zhejiang Cancer Hospital, Hangzhou, People's Republic of China
| | - Hanqing Qian
- The Comprehensive Cancer Centre of Drum Tower Hospital, Medical School of Nanjing University, Clinical Cancer Institute of Nanjing University, Nanjing, People's Republic of China
| | - Yanhong Chu
- The Comprehensive Cancer Centre of Drum Tower Hospital, Medical School of Nanjing University, Clinical Cancer Institute of Nanjing University, Nanjing, People's Republic of China
| | - Yan Yang
- Department of Oncology, Jiangning Hospital, Nanjing, People's Republic of China
| | - Jie Shao
- The Comprehensive Cancer Centre of Drum Tower Hospital, Medical School of Nanjing University, Clinical Cancer Institute of Nanjing University, Nanjing, People's Republic of China
| | - Qiuping Xu
- The Comprehensive Cancer Centre of Drum Tower Hospital, Medical School of Nanjing University, Clinical Cancer Institute of Nanjing University, Nanjing, People's Republic of China
| | - Baorui Liu
- The Comprehensive Cancer Centre of Drum Tower Hospital, Medical School of Nanjing University, Clinical Cancer Institute of Nanjing University, Nanjing, People's Republic of China
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6
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Qi Z, Guo S, Li C, Wang Q, Li Y, Wang Z. Integrative Analysis for the Roles of lncRNAs in the Immune Responses of Mouse PBMC Exposed to Low-Dose Ionizing Radiation. Dose Response 2020; 18:1559325820913800. [PMID: 32269503 PMCID: PMC7093697 DOI: 10.1177/1559325820913800] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2019] [Revised: 01/30/2020] [Accepted: 02/18/2020] [Indexed: 12/13/2022] Open
Abstract
It is well accepted that low-dose ionizing radiation (LDIR) modulates a variety
of immune responses that have exhibited the properties of immune hormesis.
Alterations in messenger RNA (mRNA) and long noncoding RNA (lncRNA) expression
were to crucially underlie these LDIR responses. However, lncRNAs in
LDIR-induced immune responses have been rarely reported, and its functions and
molecular mechanisms have not yet been characterized. Here, we used microarray
profiling to determine lncRNA in BALB/c mice exposed to single (0.5 Gy×1) and
chronic (0.05 Gy×10) low-dose γ-rays radiation (Co60). We observed
that a total of 8274 lncRNAs and 7240 mRNAs were altered in single LDIR, while
2077 lncRNAs and 796 mRNAs in chronic LDIR. The biological functions of these
upregulated mRNAs in both 2 groups using Gene Ontology functional and pathway
enrichment analysis were significantly enriched in immune processes and immune
signaling pathways. Subsequently, we screened out the lncRNAs involved in
regulating these immune signaling pathways and examined their potential
functions by lncRNAs-mRNAs coexpression networks. This is the first study to
comprehensively identify lncRNAs in single and chronic LDIR responses and to
demonstrate the involvement of different lncRNA expression patterns in
LDIR-induced immune signaling pathways. Further systematic research on these
lncRNAs will provide new insights into our understanding of LDIR-modulated
immune hormesis responses.
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Affiliation(s)
- Zhenhua Qi
- Department of Radiobiology, Beijing Key Laboratory for Radiobiology, Beijing Institute of Radiation Medicine, Beijing, People's Republic of China
| | - Sitong Guo
- Department of Radiobiology, Beijing Key Laboratory for Radiobiology, Beijing Institute of Radiation Medicine, Beijing, People's Republic of China
| | - Changyong Li
- Department of Radiobiology, Beijing Key Laboratory for Radiobiology, Beijing Institute of Radiation Medicine, Beijing, People's Republic of China
| | - Qi Wang
- Department of Radiobiology, Beijing Key Laboratory for Radiobiology, Beijing Institute of Radiation Medicine, Beijing, People's Republic of China
| | - Yaqiong Li
- Department of Radiobiology, Beijing Key Laboratory for Radiobiology, Beijing Institute of Radiation Medicine, Beijing, People's Republic of China
| | - Zhidong Wang
- Department of Radiobiology, Beijing Key Laboratory for Radiobiology, Beijing Institute of Radiation Medicine, Beijing, People's Republic of China
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Anderson E, Linendoll N, Heilman CB, Riesenburger RI, O'Leary MA, Arkun K, Nail TJ, Goodman M, Parsons SK. Schwannoma Formation in Childhood Cancer Survivors Exposed to Total Body Irradiation: Case Series. J Adolesc Young Adult Oncol 2019; 8:477-480. [PMID: 30869555 DOI: 10.1089/jayao.2018.0135] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Childhood cancer survivors are at risk for ongoing health risks related to their initial treatment. One potential long-term complication following radiation is the development of secondary tumors, including peripheral nerve tumors, such as schwannomas. We present three adolescent and young adult (AYA)-aged survivors of pediatric cancer (22-40 years), followed in our AYA survivorship clinic. Each was found to have a schwannoma many years following total body irradiation for a childhood primary malignancy. We highlight a late effect of low-dose total body irradiation as well as the importance of long-term monitoring in this population.
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Affiliation(s)
- Emily Anderson
- 1Reid R. Sacco Adolescent and Young Adult Cancer Program, Tufts Medical Center, Boston, Massachusetts
| | - Nadine Linendoll
- 1Reid R. Sacco Adolescent and Young Adult Cancer Program, Tufts Medical Center, Boston, Massachusetts
| | - Carl B Heilman
- 2Department of Neurosurgery, Tufts Medical Center, Boston, Massachusetts
| | - Ron I Riesenburger
- 2Department of Neurosurgery, Tufts Medical Center, Boston, Massachusetts
| | - Miriam A O'Leary
- 3Department of Otolaryngology, Tufts Medical Center, Boston, Massachusetts
| | - Knarik Arkun
- 4Department of Pathology and Laboratory Medicine, Tufts Medical Center, Boston, Massachusetts
| | - Tara J Nail
- 2Department of Neurosurgery, Tufts Medical Center, Boston, Massachusetts
| | - Martin Goodman
- 5Department of General Surgery, Tufts Medical Center, Boston, Massachusetts
| | - Susan K Parsons
- 1Reid R. Sacco Adolescent and Young Adult Cancer Program, Tufts Medical Center, Boston, Massachusetts
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8
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Kawamura K, Qi F, Kobayashi J. Potential relationship between the biological effects of low-dose irradiation and mitochondrial ROS production. J Radiat Res 2018; 59:ii91-ii97. [PMID: 29415254 PMCID: PMC5941154 DOI: 10.1093/jrr/rrx091] [Citation(s) in RCA: 94] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/10/2017] [Revised: 09/04/2017] [Accepted: 01/05/2018] [Indexed: 05/22/2023]
Abstract
Exposure to ionizing radiation (IR) induces various types of DNA damage, of which DNA double-strand breaks are the most severe, leading to genomic instability, tumorigenesis, and cell death. Hence, cells have developed DNA damage responses and repair mechanisms. IR also causes the accumulation of endogenous reactive oxidative species (ROS) in the irradiated cells. Upon exposure to low-dose irradiation, the IR-induced biological effects mediated by ROS were relatively more significant than those mediated by DNA damage. Accumulating evidence suggests that such increase in endogenous ROS is related with mitochondria change in irradiated cells. Thus, in this review we focused on the mechanism of mitochondrial ROS production and its relationship to the biological effects of IR. Exposure of mammalian cells to IR stimulates an increase in the production of endogenous ROS by mitochondria, which potentially leads to mitochondrial dysfunction. Since the remains of damaged mitochondria could generate or leak more ROS inside the cell, the damaged mitochondria are removed by mitophagy. The disruption of this pathway, involved in maintaining mitochondrial integrity, could lead to several disorders (such as neurodegeneration) and aging. Thus, further investigation needs to be performed in order to understand the relationship between the biological effects of low-dose IR and mitochondrial integrity.
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Affiliation(s)
- Kasumi Kawamura
- Department of Interdisciplinary Environment, Graduate School of Human and Environmental Sciences, Kyoto University, Yoshidanihonmatsucho, Sakyo-ku, Kyoto 606-8501, Japan
- Department of Genome Repair Dynamics, Radiation Biology Center, Kyoto University, Yoshidakonoecho, Sakyo-ku, Kyoto 606-8501, Japan
| | - Fei Qi
- Department of Interdisciplinary Environment, Graduate School of Human and Environmental Sciences, Kyoto University, Yoshidanihonmatsucho, Sakyo-ku, Kyoto 606-8501, Japan
- Department of Genome Repair Dynamics, Radiation Biology Center, Kyoto University, Yoshidakonoecho, Sakyo-ku, Kyoto 606-8501, Japan
| | - Junya Kobayashi
- Department of Interdisciplinary Environment, Graduate School of Human and Environmental Sciences, Kyoto University, Yoshidanihonmatsucho, Sakyo-ku, Kyoto 606-8501, Japan
- Department of Genome Repair Dynamics, Radiation Biology Center, Kyoto University, Yoshidakonoecho, Sakyo-ku, Kyoto 606-8501, Japan
- Corresponding author. Department of Genome Repair Dynamics, Radiation Biology Center, Kyoto University, Yoshidakonoecho, Sakyo-ku, Kyoto 606-8501, Japan. Tel: +81-75-753-7554; Fax: +81-75-753-7564;
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9
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Du J, Su S, Li H, Shao J, Meng F, Yang M, Qian H, Zou Z, Qian X, Liu B. Low dose irradiation increases adoptive cytotoxic T lymphocyte migration in gastric cancer. Exp Ther Med 2017; 14:5711-5716. [PMID: 29285113 PMCID: PMC5740708 DOI: 10.3892/etm.2017.5305] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2016] [Accepted: 02/03/2017] [Indexed: 01/09/2023] Open
Abstract
Adoptive cellular immunotherapy (ACI) has been demonstrated to be a promising cancer therapeutic; however, the inefficient migration of adoptive immune cells to tumors is one of the rate-limiting factors of ACI. The present study investigated whether 2 Gy low dose irradiation (LDI) was able to increase the migration of adoptive lymphocytes to gastric cancer cells. Treatment with 2 Gy LDI resulted in marked chemokine (C-X-C motif) ligand 9 (CXCL9) and CXCL10 production from gastric cancer cell lines. A Transwell chamber migration assay demonstrated enhanced transmigration of cytotoxic T lymphocytes to gastric cancer cells following LDI treatment. After 2 Gy LDI application to established gastric carcinoma in nude mice, labeled immune cells were infused by intravenous injection and concentrated fluorescence signals were observed at the tumor sites within the mice, with a peak signal at 8-h LDI. Increased numbers of adoptive T cells at the tumor sites were also observed using flow cytometry. Furthermore, a case study of a patient with metastatic gastric cancer who had received ACI treatment combined with 2 Gy LDI provided further evidence that 2 Gy LDI is able to recruit antitumor effector T cells to tumor sites. Therefore, the ability of 2 Gy LDI to convert tumors into inflamed peripheral tissues may be exploited to overcome obstacles at the effector phase of the antitumor immune response and improve the therapeutic efficacy of immunotherapy.
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Affiliation(s)
- Juan Du
- The Comprehensive Cancer Center of Drum Tower Hospital, The Affiliated Drum Tower Clinical Medical College of Nanjing Medical University, Nanjing, Jiangsu 210008, P.R. China
| | - Shu Su
- The Comprehensive Cancer Center of Drum Tower Hospital, The Affiliated Drum Tower Clinical Medical College of Nanjing Medical University, Nanjing, Jiangsu 210008, P.R. China
| | - Hongyan Li
- The Comprehensive Cancer Center of Drum Tower Hospital, The Affiliated Drum Tower Clinical Medical College of Nanjing Medical University, Nanjing, Jiangsu 210008, P.R. China
| | - Jie Shao
- The Comprehensive Cancer Center of Drum Tower Hospital, The Affiliated Drum Tower Clinical Medical College of Nanjing Medical University, Nanjing, Jiangsu 210008, P.R. China
| | - Fanyan Meng
- The Comprehensive Cancer Center of Drum Tower Hospital, The Affiliated Drum Tower Clinical Medical College of Nanjing Medical University, Nanjing, Jiangsu 210008, P.R. China
| | - Mi Yang
- The Comprehensive Cancer Center of Drum Tower Hospital, The Affiliated Drum Tower Clinical Medical College of Nanjing Medical University, Nanjing, Jiangsu 210008, P.R. China
| | - Hanqing Qian
- The Comprehensive Cancer Center of Drum Tower Hospital, The Affiliated Drum Tower Clinical Medical College of Nanjing Medical University, Nanjing, Jiangsu 210008, P.R. China
| | - Zhengyun Zou
- The Comprehensive Cancer Center of Drum Tower Hospital, The Affiliated Drum Tower Clinical Medical College of Nanjing Medical University, Nanjing, Jiangsu 210008, P.R. China
| | - Xiaoping Qian
- The Comprehensive Cancer Center of Drum Tower Hospital, The Affiliated Drum Tower Clinical Medical College of Nanjing Medical University, Nanjing, Jiangsu 210008, P.R. China
| | - Baorui Liu
- The Comprehensive Cancer Center of Drum Tower Hospital, The Affiliated Drum Tower Clinical Medical College of Nanjing Medical University, Nanjing, Jiangsu 210008, P.R. China
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10
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Shinsuke K, Junya K, Tomonobu U, Yoshiko K, Izumo N, Takahiko S. Chronic irradiation with low-dose-rate 137Cs-γ rays inhibits NGF-induced neurite extension of PC12 cells via Ca2+/calmodulin-dependent kinase II activation. J Radiat Res 2017; 58:809-815. [PMID: 29106600 PMCID: PMC5710646 DOI: 10.1093/jrr/rrx032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/25/2016] [Revised: 02/27/2017] [Indexed: 06/07/2023]
Abstract
Chronic irradiation with low-dose-rate 137Cs-γ rays inhibits the differentiation of human neural progenitor cells and influences the expression of proteins associated with several cellular functions. We aimed to determine whether such chronic irradiation influences the expression of proteins associated with PC12 cells. Chronic irradiation at 0.027 mGy/min resulted in inhibition of NGF-induced neurite extension. Furthermore, irradiation enhanced the nerve growth factor (NGF)-induced increase in the phosphorylation of extracellular signal-regulated kinase (ERK), but did not affect the phosphorylation of NGF receptors, suggesting that irradiation influences pathways unassociated with the activation of ERK. We then examined whether irradiation influenced the Akt-Rac1 pathway, which is unaffected by ERK activation. Chronic irradiation also enhanced the NGF-induced increase in Akt phosphorylation, but markedly inhibited the NGF-induced increase in Rac1 activity that is associated with neurite extension. These results suggest that the inhibitory effect of irradiation on neurite extension influences pathways unassociated with Akt activation. As Ca2+/calmodulin-dependent kinase II (CaMKII) is known to inhibit the NGF-induced neurite extension in PC12 cells, independent of ERK and Akt activation, we next examined the effects of irradiation on CaMKII activation. Chronic irradiation induced CaMKII activation, while application of KN-62 (a specific inhibitor of CaMKII), attenuated increases in CaMKII activation and recovered neurite extension and NGF-induced increases in Rac1 activity that was inhibited by irradiation. Our results suggest that chronic irradiation with low-dose-rate γ-rays inhibits Rac1 activity via CaMKII activation, thereby inhibiting NGF-induced neurite extension.
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Affiliation(s)
- Katoh Shinsuke
- Research Center for Radiation Science, Yokohama University of Pharmacy, 601 Matano-cho, Totsuka-ku, Yokohama 245-0066, Japan
| | - Kobayashi Junya
- Radiation Biology Center, Kyoto University, Yoshidakonoe-cho, Sakyo-ku, Kyoto 606-8501, Japan
| | - Umeda Tomonobu
- Research Center for Radiation Science, Yokohama University of Pharmacy, 601 Matano-cho, Totsuka-ku, Yokohama 245-0066, Japan
| | - Kobayashi Yoshiko
- Research Center for Radiation Science, Yokohama University of Pharmacy, 601 Matano-cho, Totsuka-ku, Yokohama 245-0066, Japan
| | - Nobuo Izumo
- General Health Medical Center, Yokohama University of Pharmacy, 601 Matano-cho, Totsuka-ku, Yokohama 245-0066, Japan
| | - Suzuki Takahiko
- Clinical Radiology, Faculty of Medical Technology, Teikyo University, 2-11-1 Kaga, Itabashi 173-8605, Japan
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11
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Sun Y, Zheng Z, Zhang H, Yu Y, Ma J, Tang K, Xu P, Ji T, Liang X, Chen D, Jin X, Zhang T, Long Z, Liu Y, Huang B. Chemotherapeutic tumor microparticles combining low-dose irradiation reprogram tumor-promoting macrophages through a tumor-repopulating cell-curtailing pathway. Oncoimmunology 2017; 6:e1309487. [PMID: 28680743 DOI: 10.1080/2162402x.2017.1309487] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2016] [Revised: 03/14/2017] [Accepted: 03/15/2017] [Indexed: 12/13/2022] Open
Abstract
Stem cell-like tumor-repopulating cells (TRCs) have a critical role in establishing a tumor immunosuppressive microenvironment. However, means to enhance antitumor immunity by disrupting TRCs are absent. Our previous studies have shown that tumor cell-derived microparticles (T-MPs) preferentially abrogate TRCs by delivering antitumor drugs into nuclei of TRCs. Here, we show that low dose irradiation (LDI) enhances the effect of cisplatin-packaging T-MPs (Cis-MPs) on TRCs, leading to inhibiting tumor growth in different tumor models. This antitumor effect is not due to the direct killing of tumor cells but is T cell-dependent and relies on macrophages for their efficacy. The underlying mechanism is involved in therapeutic reprograming macrophages from tumor-promotion to tumor-inhibition by disrupting TRCs and curtailing their vicious education on macrophages. These findings provide a novel strategy to reset macrophage polarization and confer their function more like M1 than M2 types with highly promising potential clinical applications.
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Affiliation(s)
- Yanling Sun
- Department of Biochemistry and Molecular Biology, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Zu'an Zheng
- Department of Cancer, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Huafeng Zhang
- Department of Biochemistry and Molecular Biology, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yuandong Yu
- Department of Biochemistry and Molecular Biology, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jingwei Ma
- Department of Biochemistry and Molecular Biology, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.,Department of Immunology, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Ke Tang
- Department of Biochemistry and Molecular Biology, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Pingwei Xu
- Department of Biochemistry and Molecular Biology, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Tiantian Ji
- Department of Biochemistry and Molecular Biology, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xiaoyu Liang
- Department of Immunology, Institute of Basic Medical Sciences & State Key Laboratory of Medical Molecular Biology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Degao Chen
- Department of Immunology, Institute of Basic Medical Sciences & State Key Laboratory of Medical Molecular Biology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Xun Jin
- Department of Immunology, Institute of Basic Medical Sciences & State Key Laboratory of Medical Molecular Biology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Tianzhen Zhang
- Department of Immunology, Institute of Basic Medical Sciences & State Key Laboratory of Medical Molecular Biology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Zhixiong Long
- Department of Oncology, the Fifth Hospital of Wuhan, Wuhan, Hubei, China
| | - Yuying Liu
- Department of Immunology, Institute of Basic Medical Sciences & State Key Laboratory of Medical Molecular Biology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.,Clinical Immunology Center, Chinese Academy of Medical Sciences, Beijing, China
| | - Bo Huang
- Department of Biochemistry and Molecular Biology, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.,Department of Immunology, Institute of Basic Medical Sciences & State Key Laboratory of Medical Molecular Biology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.,Clinical Immunology Center, Chinese Academy of Medical Sciences, Beijing, China
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12
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Zhang L, Li R, Chen H, Wei J, Qian H, Su S, Shao J, Wang L, Qian X, Liu B. Human cytotoxic T-lymphocyte membrane-camouflaged nanoparticles combined with low-dose irradiation: a new approach to enhance drug targeting in gastric cancer. Int J Nanomedicine 2017; 12:2129-2142. [PMID: 28360520 PMCID: PMC5364008 DOI: 10.2147/ijn.s126016] [Citation(s) in RCA: 79] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
Cell membrane-derived nanoparticles are becoming more attractive because of their ability to mimic many features of their source cells. This study reports on a biomimetic delivery platform based on human cytotoxic T-lymphocyte membranes. In this system, the surface of poly-lactic-co-glycolic acid nanoparticles was camouflaged using T-lymphocyte membranes, and local low-dose irradiation (LDI) was used as a chemoattractant for nanoparticle targeting. The T-lymphocyte membrane coating was verified using dynamic light scattering, transmission electron microscopy, and confocal laser scanning microscopy. This new platform reduced nanoparticle phagocytosis by macrophages to 23.99% (P=0.002). Systemic administration of paclitaxel-loaded T-lymphocyte membrane-coated nanoparticles inhibited the growth of human gastric cancer by 56.68% in Balb/c nude mice. Application of LDI at the tumor site significantly increased the tumor growth inhibition rate to 88.50%, and two mice achieved complete remission. Furthermore, LDI could upregulate the expression of adhesion molecules in tumor vessels, which is important in the process of leukocyte adhesion and might contribute to the localization of T-lymphocyte membrane-encapsulated nanoparticles in tumors. Therefore, this new drug-delivery platform retained both the long circulation time and tumor site accumulation ability of human cytotoxic T lymphocytes, while local LDI could significantly enhance tumor localization.
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Affiliation(s)
- Lianru Zhang
- The Comprehensive Cancer Centre of Drum Tower Hospital, Medical School of Nanjing University and Clinical Cancer Institute of Nanjing University, Nanjing, People’s Republic of China
| | - Rutian Li
- The Comprehensive Cancer Centre of Drum Tower Hospital, Medical School of Nanjing University and Clinical Cancer Institute of Nanjing University, Nanjing, People’s Republic of China
| | - Hong Chen
- The Comprehensive Cancer Centre of Drum Tower Hospital, Medical School of Nanjing University and Clinical Cancer Institute of Nanjing University, Nanjing, People’s Republic of China
| | - Jia Wei
- The Comprehensive Cancer Centre of Drum Tower Hospital, Medical School of Nanjing University and Clinical Cancer Institute of Nanjing University, Nanjing, People’s Republic of China
| | - Hanqing Qian
- The Comprehensive Cancer Centre of Drum Tower Hospital, Medical School of Nanjing University and Clinical Cancer Institute of Nanjing University, Nanjing, People’s Republic of China
| | - Shu Su
- The Comprehensive Cancer Centre of Drum Tower Hospital, Medical School of Nanjing University and Clinical Cancer Institute of Nanjing University, Nanjing, People’s Republic of China
| | - Jie Shao
- The Comprehensive Cancer Centre of Drum Tower Hospital, Medical School of Nanjing University and Clinical Cancer Institute of Nanjing University, Nanjing, People’s Republic of China
| | - Lifeng Wang
- The Comprehensive Cancer Centre of Drum Tower Hospital, Medical School of Nanjing University and Clinical Cancer Institute of Nanjing University, Nanjing, People’s Republic of China
| | - Xiaoping Qian
- The Comprehensive Cancer Centre of Drum Tower Hospital, Medical School of Nanjing University and Clinical Cancer Institute of Nanjing University, Nanjing, People’s Republic of China
| | - Baorui Liu
- The Comprehensive Cancer Centre of Drum Tower Hospital, Medical School of Nanjing University and Clinical Cancer Institute of Nanjing University, Nanjing, People’s Republic of China
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Yan S, Li X, Jin Q, Yuan J. MicroRNA-145 sensitizes cervical cancer cells to low-dose irradiation by downregulating OCT4 expression. Exp Ther Med 2016; 12:3130-3136. [PMID: 27882128 DOI: 10.3892/etm.2016.3731] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2015] [Accepted: 08/23/2016] [Indexed: 12/13/2022] Open
Abstract
Poor elucidation of the mechanisms involved in regulating the radiosensitivity of cancers prevents the extensive application of low-dose radiotherapy in clinical settings. The present study was conducted to investigate the role of microRNA-145 (miR-145) in the modulation of cervical cancer cell radiosensitivity, as well as to identify the underlying target of miR-145 during this process. Cervical cancer tera cells were initially exposed to doses of radiation between 1 and 6 Gy before the assessments of the cell viability and apoptosis rate. Irradiation at dose of 1 Gy was screened as optimum dose and used in subsequent experiments. A dual luciferase reporter assay was performed to demonstrate that octamer-binding transcription factor 4 (OCT4) is a target of miR-145 in cervical cancer. Consequently, OCT4 was suggested to be a target of miR-145, as a dual luciferase vector that was ligated to a fragment corresponding to the predicted target site of miR-145 in OCT4 3'-UTR showed an 83% reduction in fluorescence. Following exposure to 1 Gy irradiation, tera cells transfected with miR-145 mimics, which showed downregulation of OCT4 and cyclin D1, had lower cell viability and cell migration rate and higher apoptosis rate compared to non-transfected cells. However, the co-transfection of miR-145 mimics and OCT4 expression vector restored OCT4 and cyclin D1 expression levels and made no significant difference in terms of cell viability, cell migration rate and apoptosis rate. The present results indicate that miR-145 increases the radiosensitivity of cervical cancer cells by silencing OCT4, that cyclin D1 is putatively under the positive regulation of OCT4 and mediates miR-145 function.
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Affiliation(s)
- Siqi Yan
- Department of Oncology, Xiangya Hospital, Central South University, Changsha, Hunan 410008, P.R. China
| | - Xiangjun Li
- Department of Oncology, The Second People's Hospital, Changsha, Hunan 410000, P.R. China
| | - Qiao Jin
- Department of Oncology, Third Xiangya Hospital, Central South University, Changsha, Hunan 410013, P.R. China
| | - Jun Yuan
- Department of Oncology, Xiangya Hospital, Central South University, Changsha, Hunan 410008, P.R. China
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14
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Djan I, Solajic S, Djan M, Vucinic N, Popovic D, Ilic M, Lučić S, Bogdanovic G. Radiobiological effects of multiple vs. single low-dose pre-irradiation on the HT29 cell line. Contemp Oncol (Pozn) 2014; 18:230-3. [PMID: 25258579 DOI: 10.5114/wo.2014.41386] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2013] [Revised: 12/18/2013] [Accepted: 02/25/2014] [Indexed: 11/17/2022] Open
Abstract
AIM OF THE STUDY Aim of the study was to compare radiobiological effects of multiple vs. single low-dose pre-irradiation on the HT29 cell line. This regime is designed to be as similar as possible to fractionated tumour radiotherapy treatment, and to provide data on radiobiological effects on human tumour cells. MATERIAL AND METHODS The cell line used in the study was HT29 (human colorectal adenocarcinoma, American Type Culture Collection HTB-38™). Also, for comparison, the MRC5 cell line (human foetal lung fibroblasts, American Type Culture Collection CCL 171) was used. Four-day treatment in a 4 × 2 Gy regime was performed. Cell viability was evaluated by tetrazolium colorimetric MTT assay. RESULTS Multiple low-dose pre-irradiation induced a stronger radioadaptive response compared to single low-dose application in the HT29 cell line. Multiple pre-irradiation with 0.03 Gy and 0.05 Gy caused radioadaptive effects, while in both single and multiple low-dose pre-irradiation regimes 0.07 Gy led to radiosensitivity. Radiobiological effects induced in the HT29 cell line by low-dose pre-irradiation were evidently weak during the treatment time, because a single low-dose applied only on the first day gave no radioadaptive effects. In the MRC5 cell line different effects were registered, since radioadaptive response has not been observed after multiple or single pre-irradiation. CONCLUSIONS The obtained data are interesting, especially for the possible application of low-dose pre-irradiation in radiotherapy.
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15
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Abstract
We reviewed the beneficial or harmful effects of low-dose ionizing radiation on several diseases based on a search of the literature. The attenuation of autoimmune manifestations in animal disease models irradiated with low-dose γ-rays was previously reported by several research groups, whereas the exacerbation of allergic manifestations was described by others. Based on a detailed examination of the literature, we divided animal disease models into two groups: one group consisting of collagen-induced arthritis (CIA), experimental encephalomyelitis (EAE), and systemic lupus erythematosus, the pathologies of which were attenuated by low-dose irradiation, and another group consisting of atopic dermatitis, asthma, and Hashimoto's thyroiditis, the pathologies of which were exacerbated by low-dose irradiation. The same biological indicators, such as cytokine levels and T-cell subpopulations, were examined in these studies. Low-dose irradiation reduced inter-feron (IFN)-gamma (γ) and interleukin (IL)-6 levels and increased IL-5 levels and the percentage of CD4(+)CD25(+)Foxp3(+)Treg cells in almost all immunological disease cases examined. Variations in these biological indicators were attributed to the attenuation or exacerbation of the disease's manifestation. We concluded that autoimmune diseases caused by autoantibodies were attenuated by low-dose irradiation, whereas diseases caused by antibodies against external antigens, such as atopic dermatitis, were exacerbated.
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Affiliation(s)
- Noriko Shimura
- Faculty of Pharmaceutical Sciences, Ohu University, Japan
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16
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Kataoka T. Study of antioxidative effects and anti-inflammatory effects in mice due to low-dose X-irradiation or radon inhalation. J Radiat Res 2013; 54:587-96. [PMID: 23420683 PMCID: PMC3709669 DOI: 10.1093/jrr/rrs141] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/01/2012] [Revised: 12/20/2012] [Accepted: 12/24/2012] [Indexed: 05/30/2023]
Abstract
Low-dose irradiation induces various stimulating effects, especially activation of the biological defense system including antioxidative and immune functions. Oxidative stress induced by reactive oxygen species (ROS) can cause cell damage and death and can induce many types of diseases. This paper reviews new insights into inhibition of ROS-related diseases with low-dose irradiation or radon inhalation. X-irradiation (0.5 Gy) before or after carbon tetrachloride (CCl4) treatment inhibits hepatopathy in mice. X-irradiation (0.5 Gy) before ischemia-reperfusion injury or cold-induced brain injury also inhibits edema. These findings suggest that low-dose X-irradiation has antioxidative effects due to blocking the damage induced by free radicals or ROS. Moreover, radon inhalation increases superoxide dismutase activity in many organs and inhibits CCl4-induced hepatic and renal damage and streptozotocin-induced type I diabetes. These findings suggest that radon inhalation also has antioxidative effects. This antioxidative effect against CCl4-induced hepatopathy is comparable to treatment with ascorbic acid (vitamin C) at a dose of 500 mg/kg weight, or α-tocopherol (vitamin E) treatment at a dose of 300 mg/kg weight, and is due to activation of antioxidative functions. In addition, radon inhalation inhibits carrageenan-induced inflammatory paw edema, suggesting that radon inhalation has anti-inflammatory effects. Furthermore, radon inhalation inhibits formalin-induced inflammatory pain and chronic constriction injury-induced neuropathic pain, suggesting that radon inhalation relieves pain. Thus, low-dose irradiation very likely activates the defense systems in the body, and therefore, contributes to preventing or reducing ROS-related injuries, which are thought to involve peroxidation.
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Affiliation(s)
- Takahiro Kataoka
- Graduate School of Health Sciences, Okayama University, Okayama, Japan.
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17
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Szluha K, Lazanyi K, Furka A, Kiss F, Szabo I, Pintye E, Miko I, Nemeth N. Early micro-rheological consequences of single fraction total body low-dose photon irradiation in mice. Clin Hemorheol Microcirc 2013; 57:227-42. [PMID: 23340001 DOI: 10.3233/ch-131650] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Despite of the studies on widespread biological effects of irradiation, surprisingly only little number of papers can be found dealing with its in vivo hemorheological impact. Furthermore, other studies suggested that low-dose irradiation might differ from high-dose in more than linear ways. On Balb/c Jackson female adult mice hematological and hemorheological impacts of total body irradiation were investigated 1 hour following 0.002, 0.005, 0.01, 0.02, 0.05 and 0.1 Gy dose irradiation. In case of 0.01 Gy further groups were analyzed 30 minutes, 2, 4, 6, 24 and 48 h after irradiation. According to the results, it seems that the dose-dependent changes of blood micro-rheological parameters are not linear. The irradiation dose of 0.01 Gy acted as a point of 'inflexion', because by this dose we found the most expressed changes in hematological parameters, as well as in red blood cell aggregation, deformability and osmoscan data. The time-dependent changes showed progressive decrease in pH, rise in lactate concentration, further decrease in erythrocyte aggregation index and deformability, with moderate shifting of the optimal osmolarity point and modulation in membrane stability. As conclusion, low-dose total body irradiation may cause micro-rheological changes, being non-linearly correlated with the irradiation dose.
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Affiliation(s)
- Kornelia Szluha
- Department of Radiotherapy, Medical and Health Science Center, University of Debrecen, Debrecen, Hungary Department of Diagnostic Radiology and Oncotherapy, Semmelweis University, Budapest, Hungary
| | - Kornelia Lazanyi
- Department of Radiotherapy, Medical and Health Science Center, University of Debrecen, Debrecen, Hungary
| | - Andrea Furka
- Department of Radiotherapy, Medical and Health Science Center, University of Debrecen, Debrecen, Hungary
| | - Ferenc Kiss
- Department of Operative Techniques and Surgical Research, Institute of Surgery, Medical and Health Science Center, University of Debrecen, Debrecen, Hungary
| | - Imre Szabo
- Department of Radiotherapy, Medical and Health Science Center, University of Debrecen, Debrecen, Hungary
| | - Eva Pintye
- Department of Radiotherapy, Medical and Health Science Center, University of Debrecen, Debrecen, Hungary
| | - Iren Miko
- Department of Operative Techniques and Surgical Research, Institute of Surgery, Medical and Health Science Center, University of Debrecen, Debrecen, Hungary
| | - Norbert Nemeth
- Department of Operative Techniques and Surgical Research, Institute of Surgery, Medical and Health Science Center, University of Debrecen, Debrecen, Hungary
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Abstract
PURPOSE To analyze the long-term effects of exposure to low-dose γ-irradiation on survival and life span in directly irradiated Daphnia magna and their offspring. MATERIALS AND METHODS One-day-old Daphnia magna were exposed to 10, 100 and 1000 mGy of acute γ-rays. The life-span of irradiated and control animals, as well as their non-exposed progeny was analyzed. RESULTS Irradiation at dose of 100 and 1000 mGy resulted in a significant decrease in the life span of irradiated Daphnia. The data presented here also show that the survival of non-exposed first-generation offspring of irradiated parents is significantly compromised, thus implying the presence of transgenerational effects. CONCLUSION The results of our study show that low-dose irradiation significantly reduces the life-span of directly exposed Daphnia and their first-generation offspring. The observed compromised viability is most likely attributed to non-targeted effects of ionizing radiation.
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Affiliation(s)
- Elena I Sarapultseva
- Department of Biology, Obninsk Institute of Nuclear Power Engineering of the National Research Nuclear University "MEPhI", Studgorodok, 1, Kaluga region, 249040, Obninsk, Russian Federation
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Zhao Y, Cui Y, Han J, Ren J, Wu G, Cheng J. Cell division cycle 25 homolog c effects on low-dose hyper-radiosensitivity and induced radioresistance at elevated dosage in A549 cells. J Radiat Res 2012; 53:686-94. [PMID: 22843362 PMCID: PMC3430412 DOI: 10.1093/jrr/rrs024] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/09/2023]
Abstract
The underlying mechanisms behind both low-dose hyper-radiosensitivity (HRS) and induced radioresistance (IRR), generally occurring at elevated radiation levels, remain unclear; however, elucidation of the relationship between cell cycle division 25 homolog c (Cdc25c) phosphatase and HRS/IRR may provide important insights into this process. Two cell lines with disparate HRS status, A549 and SiHa cells, were selected as cell models for comparison of dose-dependent Cdc25c phosphatase expression subsequent to low-dose irradiation. Knockdown of Cdc25c in A549 cells was mediated by transfection with a pGCsi-RAN-U6neo vector containing hairpin siRNA sequences. S216-phosphorylated Cdc25c protein [p-Cdc25c (Ser216)], cell survival and mitotic ratio were measured by western blot, colony-forming assay and histone H3 phosphorylation analysis. Variant p-Cdc25c (Ser216) expression was observed in the two cell lines after irradiation. The p-Cdc25c (Ser216) expression noted in SiHa cells after administration of 0-1 Gy radiation was similar to the radioresistance model; however, in A549 cells, the dose response for the phosphorylation of the Cdc25c Ser216 residue overlapped the level required to overcome the HRS response. Furthermore, Cdc25c repression prior to low-dose radiation induced more distinct HRS and prevented the development of IRR. The dose required to overcome the HRS response coincided with the effect of early G2-phase checkpoint arrest in A549 cells (approximately 0.3 Gy), and Cdc25c knockdown in A549 cells (approximately 0.5 Gy) corresponded to the phosphorylation of the Cdc25c Ser216 residue. Resultant data confirmed that dose-dependent Cdc25c phosphatase does effectively act as an early G2-phase checkpoint, thus indicating mechanistic importance in the HRS to IRR transition in A549 cells.
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Affiliation(s)
- Yanxia Zhao
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430023, Hubei, People's Republic of China
| | - Yingshan Cui
- Oncology Department, Jinhua Municipal Center Hospital, Jinhua, 321000, Zhejiang, People's Republic of China
| | - Jun Han
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430023, Hubei, People's Republic of China
| | - Jinghua Ren
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430023, Hubei, People's Republic of China
| | - Gang Wu
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430023, Hubei, People's Republic of China
| | - Jing Cheng
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430023, Hubei, People's Republic of China
- Corresponding author. Tel: +86 (27) 65-650-416; Fax: +86 (27) 65-65-0733;
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20
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Kataoka T, Yoshimoto M, Nakagawa S, Mizuguchi Y, Taguchi T, Yamaoka K. Basic study on active changes in biological function of mouse liver graft in cold storage after low-dose x-irradiation. J Clin Biochem Nutr 2009; 45:219-26. [PMID: 19794932 PMCID: PMC2735636 DOI: 10.3164/jcbn.09-06] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2009] [Accepted: 04/27/2009] [Indexed: 11/30/2022] Open
Abstract
We previously reported that low-dose X-irradiation alleviates ischemia-reperfusion injury such as mouse paw edema. In this study, we examined active changes in the biological function of mouse liver grafts in cold storage after low-dose X-irradiation. Mouse livers were sham-irradiated or were irradiated with 0.25, 0.5, 1.0, or 5.0 Gy of X-ray and stored for 4, 8, 24, or 48 h in preservation or saline solution. The results show that storage for 24 h in saline solution after 0.5 Gy irradiation significantly increased the activity of superoxide dismutase (SOD) and catalase. Following storage for 4, 8, or 48 h in preservation solution, lipid peroxide levels of the 0.5 Gy irradiated group were significantly lower than those of the sham irradiated group. Following storage for 24 h in preservation solution, the activity of SOD and catalase of the 1.0 Gy irradiated group were significantly higher than those of the sham irradiated group. Hepatocytes stored in saline solution were vacuolated. However, no vacuole formation was observed in hepatocytes stored in preservation solution. These findings suggest that low-dose irradiation significantly activates antioxidative functions of liver grafts. Moreover, the dose at which enhancement of antioxidative function occurs in livers stored in preservation solution, which contains glutathione, is significantly higher than that in saline solution.
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Affiliation(s)
- Takahiro Kataoka
- Graduate School of Health Sciences, Okayama University, 5-1 Shikata-cho, 2-chome, Okayama 700-8558, Japan
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