1
|
Matsumoto Y, Fukumitsu N, Ishikawa H, Nakai K, Sakurai H. A Critical Review of Radiation Therapy: From Particle Beam Therapy (Proton, Carbon, and BNCT) to Beyond. J Pers Med 2021; 11:jpm11080825. [PMID: 34442469 PMCID: PMC8399040 DOI: 10.3390/jpm11080825] [Citation(s) in RCA: 44] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2021] [Revised: 08/20/2021] [Accepted: 08/22/2021] [Indexed: 12/24/2022] Open
Abstract
In this paper, we discuss the role of particle therapy—a novel radiation therapy (RT) that has shown rapid progress and widespread use in recent years—in multidisciplinary treatment. Three types of particle therapies are currently used for cancer treatment: proton beam therapy (PBT), carbon-ion beam therapy (CIBT), and boron neutron capture therapy (BNCT). PBT and CIBT have been reported to have excellent therapeutic results owing to the physical characteristics of their Bragg peaks. Variable drug therapies, such as chemotherapy, hormone therapy, and immunotherapy, are combined in various treatment strategies, and treatment effects have been improved. BNCT has a high dose concentration for cancer in terms of nuclear reactions with boron. BNCT is a next-generation RT that can achieve cancer cell-selective therapeutic effects, and its effectiveness strongly depends on the selective 10B accumulation in cancer cells by concomitant boron preparation. Therefore, drug delivery research, including nanoparticles, is highly desirable. In this review, we introduce both clinical and basic aspects of particle beam therapy from the perspective of multidisciplinary treatment, which is expected to expand further in the future.
Collapse
Affiliation(s)
- Yoshitaka Matsumoto
- Department of Radiation Oncology, Clinical Medicine, Faculty of Medicine, University of Tsukuba, Tsukuba 305-8575, Japan; (K.N.); (H.S.)
- Proton Medical Research Center, University of Tsukuba Hospital, Tsukuba 305-8576, Japan
- Correspondence: ; Tel.: +81-29-853-7100
| | | | - Hitoshi Ishikawa
- National Institute of Quantum and Radiological Science and Technology Hospital, Chiba 263-8555, Japan;
| | - Kei Nakai
- Department of Radiation Oncology, Clinical Medicine, Faculty of Medicine, University of Tsukuba, Tsukuba 305-8575, Japan; (K.N.); (H.S.)
- Proton Medical Research Center, University of Tsukuba Hospital, Tsukuba 305-8576, Japan
| | - Hideyuki Sakurai
- Department of Radiation Oncology, Clinical Medicine, Faculty of Medicine, University of Tsukuba, Tsukuba 305-8575, Japan; (K.N.); (H.S.)
- Proton Medical Research Center, University of Tsukuba Hospital, Tsukuba 305-8576, Japan
| |
Collapse
|
2
|
Yang Z, Gu Q, Wang Y, Liu B, Zhou G, Shao C, Ruan J, Jia R, Ge S. Heavy-Ion Carbon Radiation Regulates Long Non-Coding RNAs in Cervical Cancer HeLa Cells. J Cancer 2019; 10:5022-5030. [PMID: 31602253 PMCID: PMC6775614 DOI: 10.7150/jca.30846] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2018] [Accepted: 08/03/2019] [Indexed: 11/08/2022] Open
Abstract
Improving the effects of radiotherapy, such as heavy ion radiation, is currently a research priority for oncotherapy. Long non-coding RNAs (lncRNAs) are a subtype of noncoding RNAs involved in the therapeutic response to tumor radiotherapy. However, little is known about the variations in lncRNAs that occur after heavy ion radiation therapy. In this study, we established two kinds of Agilent Human lncRNA arrays and examined the effects of heavy ion radiation and X-ray irradiation on HeLa cells. We compared the differences in lncRNA expression (>=2-fold changes) between cells treated with the two types of radiation and control cells and identified 504 lncRNAs and 285 mRNAs that were differentially expressed. Among these lncRNAs, TCONS-00009910 was the most highly up-regulated lncRNA, while NONHSAT060631 was the most down-regulated lncRNA in both groups. To validate these sequencing data, RT-PCR was performed, and similar findings were obtained. GO and KEGG pathway analyses were employed to probe the potential functions of the affected lncRNAs. Numerous lncRNAs were changed after radiation exposure, showing that they may have important functions in the response to tumour radiotherapy. The present findings may help to elucidate the mechanism by which lncRNAs affect the clinical responses of cancer to radiation and may provide potential diagnostic and therapeutic targets for cancer therapy.
Collapse
Affiliation(s)
- Zhi Yang
- Department of Ophthalmology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, People's Republic of China.,Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai 200011, People's Republic of China.,CAS Key Laboratory of Tissue Microenvironment and Tumor, Shanghai Institute of Nutrition and Health, Shanghai Institutes for Biological Sciences, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai 200031, People's Republic of China
| | - Qingying Gu
- Department of Ophthalmology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, People's Republic of China.,Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai 200011, People's Republic of China.,CAS Key Laboratory of Tissue Microenvironment and Tumor, Shanghai Institute of Nutrition and Health, Shanghai Institutes for Biological Sciences, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai 200031, People's Republic of China
| | - Ying Wang
- Department of Ophthalmology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, People's Republic of China.,Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai 200011, People's Republic of China
| | - Bo Liu
- Department of Ophthalmology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, People's Republic of China.,Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai 200011, People's Republic of China
| | - Guangming Zhou
- Department of Radiation Biology, School of Radiation Medication and Protection, Soochow University, Suzhou 215123, People's Republic of China
| | - Chunlin Shao
- Institute of Radiation Medicine, Fudan University, Shanghai, 200032
| | - Jing Ruan
- Department of Ophthalmology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, People's Republic of China.,Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai 200011, People's Republic of China
| | - Renbing Jia
- Department of Ophthalmology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, People's Republic of China.,Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai 200011, People's Republic of China
| | - Shengfang Ge
- Department of Ophthalmology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, People's Republic of China.,Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai 200011, People's Republic of China
| |
Collapse
|
3
|
Hasse FC, Koerber SA, Prigge ES, Liermann J, von Knebel Doeberitz M, Debus J, Sterzing F. Overcoming radioresistance in WiDr cells with heavy ion irradiation and radiosensitization by 2-deoxyglucose with photon irradiation. Clin Transl Radiat Oncol 2019; 19:52-58. [PMID: 31517070 PMCID: PMC6733777 DOI: 10.1016/j.ctro.2019.08.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2019] [Revised: 08/14/2019] [Accepted: 08/17/2019] [Indexed: 12/31/2022] Open
Abstract
2-DG acts as a radiosensitizer to photons depending on the time of its application. There is no sensitization to 12C irradiation by 2-DG. 12C combination therapy still has the higher dose effectiveness.
Background and purpose Radiosensitizers and heavy ion irradiation could improve therapy for female patients with malignant tumors located in the pelvic region through dose reduction. Aim of the study was to investigate the radiosensitizing potential of 2-deoxy-d-glucose (2-DG) in combination with carbon ion-irradiation (12C) in representative cell lines of cancer in the female pelvic region. Materials and methods The human cervix carcinoma cell line CaSki and the colorectal carcinoma cell line WiDr were used. 2-DG was employed in two different settings, pretreatment and treatment simultaneous to irradiation. Clonogenic survival, α and β values for application of the linear quadratic model and relative biological effectiveness (RBE) were determined. ANOVA tests were used for statistical group comparison. Isobolograms were generated for curve comparisons. Results The comparison of monotherapy with 12C versus photons yielded RBE values of 2.4 for CaSki and 3.5 for WiDr along with a significant increase of α values in the 12C setting. 2-DG monotherapy reduced the colony formation of both cell lines. Radiosensitization was found in WiDr for the combination of photon irradiation with synchronous application of 2-DG. The same setup for 12C showed no radiosensitization, but rather an additive effect. In all settings with CaSki, the combination of irradiation and 2-DG exhibited additive properties. Conclusion The combination of 2-DG and photon therapy, as well as irradiation with carbon ions can overcome radioresistance of tumor cells such as WiDr.
Collapse
Affiliation(s)
- Felix Christian Hasse
- Department of Radiation Oncology, University Hospital Heidelberg, Im Neuenheimer Feld 400, 69120 Heidelberg, Germany
| | - Stefan Alexander Koerber
- Department of Radiation Oncology, University Hospital Heidelberg, Im Neuenheimer Feld 400, 69120 Heidelberg, Germany
| | - Elena Sophie Prigge
- Department of Applied Tumor Biology, Institute of Pathology, University Hospital Heidelberg, Im Neuenheimer Feld 280, 69120 Heidelberg, Germany
| | - Jakob Liermann
- Department of Radiation Oncology, University Hospital Heidelberg, Im Neuenheimer Feld 400, 69120 Heidelberg, Germany
| | - Magnus von Knebel Doeberitz
- Department of Applied Tumor Biology, Institute of Pathology, University Hospital Heidelberg, Im Neuenheimer Feld 280, 69120 Heidelberg, Germany
| | - Juergen Debus
- Department of Radiation Oncology, University Hospital Heidelberg, Im Neuenheimer Feld 400, 69120 Heidelberg, Germany
| | - Florian Sterzing
- Department of Radiation Oncology, University Hospital Heidelberg, Im Neuenheimer Feld 400, 69120 Heidelberg, Germany
| |
Collapse
|
4
|
Guo X, Zhang M, Gao Y, Cao G, Yang Y, Lu D, Li W. A genome-wide view of mutations in respiration-deficient mutants of Saccharomyces cerevisiae selected following carbon ion beam irradiation. Appl Microbiol Biotechnol 2019; 103:1851-1864. [PMID: 30661110 DOI: 10.1007/s00253-019-09626-0] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2018] [Revised: 12/10/2018] [Accepted: 12/16/2018] [Indexed: 12/15/2022]
Abstract
Mitochondrial dysfunction in Saccharomyces cerevisiae was selected as a marker of ion penetration following carbon ion beam (CIB) irradiation. Respiration-deficient mutants were screened. Following confirmation of negligible spontaneous mutation, eight genetically stable S. cerevisiae respiration-deficient mutant strains and a control strain were resequenced with ~ 200-fold read depth. Strategies were established to identify and validate the particular mutations induced by CIB irradiation. In the nuclear genome, CIB irradiation mainly caused base substitutions and some small (< 100 bp) insertions/deletions (indels), which were widely distributed across the chromosomes. Although mitochondrial dysfunction was selected as a screening marker, variants in the nuclear genome were detected at a high frequency (10-7) relative to spontaneous mutations (10-9). The transition to transversion ratio for base substitutions was 0.746, which was less than that of spontaneous mutations. In the mitochondrial genome, there were very large deletions including substantial gene areas, resulting in extremely low read coverage. Meanwhile, every mutant possessed a distinctive mutation pattern, for both the nuclear and the mitochondrial genome. Nuclear genomes contained scanty mitochondrial respiration-related genes that were potentially affected by verified mutations, suggesting that variants in the mitochondrial genome may be the main drivers of respiratory deficiencies. Our study confirmed the previous finding that heavy ion beam (HIB) irradiation mainly induces substantial base substitutions and some small indels but also yielded some novel findings, in particular, novel structural variants in the mitochondrial genomes. These data will enhance the understanding of HIB-induced damage and mutations and aid in the HIB-based microbial mutation breeding.
Collapse
Affiliation(s)
- Xiaopeng Guo
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, 730000, China.,College of Life Science, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Miaomiao Zhang
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, 730000, China.,College of Life Science, University of Chinese Academy of Sciences, Beijing, 100049, China.,Gansu Key Laboratory of Microbial Resources Exploition and Application, Lanzhou, 730000, China
| | - Yue Gao
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, 730000, China.,College of Life Science, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Guozhen Cao
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, 730000, China.,Department of Pharmacology, School of Preclinical Medicine of Xinjiang Medical University, Urumqi, 830011, China
| | - Yang Yang
- School of Life Science and Engineering, Lanzhou University of Technology, Lanzhou, 730050, China
| | - Dong Lu
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, 730000, China. .,Gansu Key Laboratory of Microbial Resources Exploition and Application, Lanzhou, 730000, China.
| | - Wenjian Li
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, 730000, China. .,Gansu Key Laboratory of Microbial Resources Exploition and Application, Lanzhou, 730000, China.
| |
Collapse
|
5
|
Shuryak I. Review of microbial resistance to chronic ionizing radiation exposure under environmental conditions. JOURNAL OF ENVIRONMENTAL RADIOACTIVITY 2019; 196:50-63. [PMID: 30388428 DOI: 10.1016/j.jenvrad.2018.10.012] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/28/2018] [Accepted: 10/21/2018] [Indexed: 06/08/2023]
Abstract
Ionizing radiation (IR) produces multiple types of damage to nucleic acids, proteins and other crucial cellular components. Nevertheless, various microorganisms from phylogenetically distant taxa (bacteria, archaea, fungi) can resist IR levels many orders of magnitude above natural background. This intriguing phenomenon of radioresistance probably arose independently many times throughout evolution as a byproduct of selective pressures from other stresses (e.g. desiccation, UV radiation, chemical oxidants). Most of the literature on microbial radioresistance is based on acute γ-irradiation experiments performed in the laboratory, typically involving pure cultures grown under near-optimal conditions. There is much less information about the upper limits of radioresistance in the field, such as in radioactively-contaminated areas, where several radiation types (e.g. α and β, as well as γ) and other stressors (e.g. non-optimal temperature and nutrient levels, toxic chemicals, interspecific competition) act over multiple generations. Here we discuss several examples of radioresistant microbes isolated from extremely radioactive locations (e.g. Chernobyl and Mayak nuclear plant sites) and estimate the radiation dose rates they were able to tolerate. Some of these organisms (e.g. the fungus Cladosporium cladosporioides, the cyanobacterium Geitlerinema amphibium) are widely-distributed and colonize a variety of habitats. These examples suggest that resistance to chronic IR and chemical contamination is not limited to rare specialized strains from extreme environments, but can occur among common microbial taxa, perhaps due to overlap between mechanisms of resistance to IR and other stressors.
Collapse
Affiliation(s)
- Igor Shuryak
- Center for Radiological Research, Columbia University, 630 West 168(th) street, VC-11-234/5, New York, NY, 10032, USA.
| |
Collapse
|
6
|
Furusawa Y, Nakano-Aoki M, Matsumoto Y, Hirayama R, Kobayashi A, Konishi T. Equivalency of the quality of sublethal lesions after photons and high-linear energy transfer ion beams. JOURNAL OF RADIATION RESEARCH 2017; 58:803-808. [PMID: 28992250 PMCID: PMC5710644 DOI: 10.1093/jrr/rrx030] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/26/2017] [Revised: 03/23/2017] [Indexed: 06/07/2023]
Abstract
The quality of the sublethal damage (SLD) after irradiation with high-linear energy transfer (LET) ion beams was investigated with low-LET photons. Chinese hamster V79 cells and human squamous carcinoma SAS cells were first exposed to a priming dose of different ion beams at different LETs at the Heavy Ion Medical Accelerator in the Chiba facility. The cells were kept at room temperature and then exposed to a secondary test dose of X-rays. Based on the repair kinetics study, the surviving fraction of cells quickly increased with the repair time, and reached a plateau in 2-3 h, even when cells had received priming monoenergetic high-LET beams or spread-out Bragg peak beams as well as X-ray irradiation. The shapes of the cell survival curves from the secondary test X-rays, after repair of the damage caused by the high-LET irradiation, were similar to those obtained from cells exposed to primary X-rays only. Complete SLD repairs were observed, even when the LET of the primary ion beams was very high. These results suggest that the SLD caused by high-LET irradiation was repaired well, and likewise, the damage caused by the X-rays. In cells where the ion beam had made a direct hit in the core region in an ion track, lethal damage to the domain was produced, resulting in cell death. On the other hand, in domains that had received a glancing hit in the low-LET penumbra region, the SLD produced was completely repaired.
Collapse
Affiliation(s)
- Yoshiya Furusawa
- Department of Basic Medical Sciences for Radiation Damages, National Institute of Radiological Sciences, 4–9-1 Anagawa, Inage, Chiba, Chiba 263–8555, Japan
| | - Mizuho Nakano-Aoki
- Formerly at Center for Charged Particle Therapy, National Institute of Radiological Sciences, 4–9-1 Anagawa, Inage, Chiba, Chiba 263–8555, Japan
| | - Yoshitaka Matsumoto
- Proton Medical Research Center, Faculty of Medicine, University of Tsukuba Hospital, 2–1-1 Amakubo, Tsukuba, Ibaraki 305–8576, Japan
| | - Ryoichi Hirayama
- Department of Basic Medical Sciences for Radiation Damages, National Institute of Radiological Sciences, 4–9-1 Anagawa, Inage, Chiba, Chiba 263–8555, Japan
| | - Alisa Kobayashi
- Department of Accelerator and Medical Physics, National Institute of Radiological Sciences, 4–9-1 Anagawa, Inage, Chiba, Chiba 263–8555, Japan
- Graduate School of Comprehensive Human Sciences, University of Tsukuba, 1–1-1 Tennodai, Tsukuba, Ibaraki 305–8575, Japan
| | - Teruaki Konishi
- Department of Basic Medical Sciences for Radiation Damages, National Institute of Radiological Sciences, 4–9-1 Anagawa, Inage, Chiba, Chiba 263–8555, Japan
| |
Collapse
|
7
|
Wang Y, Guan H, Xie DF, Xie Y, Liu XD, Wang Q, Sui L, Song M, Zhang H, Zhou J, Zhou PK. Proteomic Analysis Implicates Dominant Alterations of RNA Metabolism and the Proteasome Pathway in the Cellular Response to Carbon-Ion Irradiation. PLoS One 2016; 11:e0163896. [PMID: 27711237 PMCID: PMC5053480 DOI: 10.1371/journal.pone.0163896] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2015] [Accepted: 09/18/2016] [Indexed: 12/25/2022] Open
Abstract
Radiotherapy with heavy ions is considered advantageous compared to irradiation with photons due to the characteristics of the Braggs peak and the high linear energy transfer (LET) value. To understand the mechanisms of cellular responses to different LET values and dosages of heavy ion radiation, we analyzed the proteomic profiles of mouse embryo fibroblast MEF cells exposed to two doses from different LET values of heavy ion 12C. Total proteins were extracted from these cells and examined by Q Exactive with Liquid Chromatography (LC)—Electrospray Ionization (ESI) Tandem MS (MS/MS). Using bioinformatics approaches, differentially expressed proteins with 1.5 or 2.0-fold changes between different dosages of exposure were compared. With the higher the dosage and/or LET of ion irradiation, the worse response the cells were in terms of protein expression. For instance, compared to the control (0 Gy), 771 (20.2%) proteins in cells irradiated at 0.2 Gy of carbon-ion radiation with 12.6 keV/μm, 313 proteins (8.2%) in cells irradiated at 2 Gy of carbon-ion radiation with 12.6 keV/μm, and 243 proteins (6.4%) in cells irradiated at 2 Gy of carbon-ion radiation with 31.5 keV/μm exhibited changes of 1.5-fold or greater. Gene ontology (GO) analysis, Kyoto Encyclopedia of Genes and Genomes (KEGG) analysis, Munich Information Center for Protein Sequences (MIPS) analysis, and BioCarta analysis all indicated that RNA metabolic processes (RNA splicing, destabilization and deadenylation) and proteasome pathways may play key roles in the cellular response to heavy-ion irradiation. Proteasome pathways ranked highest among all biological processes associated with heavy carbon-ion irradiation. In addition, network analysis revealed that cellular pathways involving proteins such as Col1a1 and Fn1 continued to respond to high dosages of heavy-ion irradiation, suggesting that these pathways still protect cells against damage. However, pathways such as those involving Ikbkg1 responded better at lower dosages than at higher dosages, implying that cell damage would occur when the networks involving these proteins stop responding. Our investigation provides valuable proteomic information for elucidating the mechanism of biological effects induced by carbon ions in general.
Collapse
Affiliation(s)
- Yu Wang
- Department of Radiation Toxicology and Oncology, Beijing Key Laboratory for Radiation Biology, Beijing Institute of Radiation Medicine, Beijing, China
| | - Hua Guan
- Department of Radiation Toxicology and Oncology, Beijing Key Laboratory for Radiation Biology, Beijing Institute of Radiation Medicine, Beijing, China
| | - Da-Fei Xie
- Department of Radiation Toxicology and Oncology, Beijing Key Laboratory for Radiation Biology, Beijing Institute of Radiation Medicine, Beijing, China
| | - Yi Xie
- Department of Heavy Ion Radiation Medicine, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - Xiao-Dan Liu
- Department of Radiation Toxicology and Oncology, Beijing Key Laboratory for Radiation Biology, Beijing Institute of Radiation Medicine, Beijing, China
| | - Qi Wang
- Department of Radiation Toxicology and Oncology, Beijing Key Laboratory for Radiation Biology, Beijing Institute of Radiation Medicine, Beijing, China
| | - Li Sui
- China Institute of Atomic Energy, Beijing 102413, China
| | - Man Song
- Department of Radiation Toxicology and Oncology, Beijing Key Laboratory for Radiation Biology, Beijing Institute of Radiation Medicine, Beijing, China
- Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, School of Radiation Medicine and Protection, Soochow University, Suzhou, China
| | - Hong Zhang
- Department of Heavy Ion Radiation Medicine, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - Jianhua Zhou
- iBioinfo Groups, Lexington, Massachusetts 02421, United States of America
- Department of Neuroregeneration, Nantong University, Nantong, China
- * E-mail: (PKZ); (JZ)
| | - Ping-Kun Zhou
- Department of Radiation Toxicology and Oncology, Beijing Key Laboratory for Radiation Biology, Beijing Institute of Radiation Medicine, Beijing, China
- Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, School of Radiation Medicine and Protection, Soochow University, Suzhou, China
- * E-mail: (PKZ); (JZ)
| |
Collapse
|
8
|
Ma H, Takahashi A, Yoshida Y, Adachi A, Kanai T, Ohno T, Nakano T. Combining carbon ion irradiation and non-homologous end-joining repair inhibitor NU7026 efficiently kills cancer cells. Radiat Oncol 2015; 10:225. [PMID: 26553138 PMCID: PMC4638098 DOI: 10.1186/s13014-015-0536-z] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2015] [Accepted: 11/03/2015] [Indexed: 11/21/2022] Open
Abstract
Background Our previous data demonstrated that targeting non-homologous end-joining repair (NHEJR) yields a higher radiosensitivity than targeting homologous recombination repair (HRR) to heavy ions using DNA repair gene knockouts (KO) in mouse embryonic fibroblast (MEF). In this study, we determined if combining the use of an NHEJR inhibitor with carbon (C) ion irradiation was more efficient in killing human cancer cells compared with only targeting a HRR inhibitor. Methods The TP53-null human non-small cell lung cancer cell line H1299 was used for testing the radiosensitizing effect of NHEJR-related DNA-dependent protein kinase (DNA-PK) inhibitor NU7026, HRR-related Rad51 inhibitor B02, or both to C ion irradiation using colony forming assays. The mechanism underlying the inhibitor radiosensitization was determined by flow cytometry after H2AX phosphorylation staining. HRR-related Rad54-KO, NHEJR-related Lig4-KO, and wild-type TP53-KO MEF were also included to confirm the suppressing effect specificity of these inhibitors. Results NU7026 showed significant sensitizing effect to C ion irradiation in a concentration-dependent manner. In contrast, B02 showed a slight sensitizing effect to C ion irradiation. The addition of NU7026 significantly increased H2AX phosphorylation after C ion and x-ray irradiations in H1299 cells, but not B02. NU7026 had no effect on radiosensitivity to Lig4-KO MEF and B02 had no effect on radiosensitivity to Rad54-KO MEF in both irradiations. Conclusion These results suggest that inhibitors targeting the NHEJR pathway could significantly enhance radiosensitivity of human cancer cells to C ion irradiation, rather than targeting the HRR pathway. Electronic supplementary material The online version of this article (doi:10.1186/s13014-015-0536-z) contains supplementary material, which is available to authorized users.
Collapse
Affiliation(s)
- Hongyu Ma
- Department of Radiation Oncology, Gunma University Graduate School of Medicine, 3-39-22 Showa-machi, Maebashi, 371-8511, Gunma, Japan.
| | - Akihisa Takahashi
- Gunma University Heavy Ion Medical Center, 3-39-22 Showa-machi, Maebashi, 371-8511, Gunma, Japan.
| | - Yukari Yoshida
- Gunma University Heavy Ion Medical Center, 3-39-22 Showa-machi, Maebashi, 371-8511, Gunma, Japan.
| | - Akiko Adachi
- Department of Radiation Oncology, Gunma University Graduate School of Medicine, 3-39-22 Showa-machi, Maebashi, 371-8511, Gunma, Japan.
| | - Tatsuaki Kanai
- Gunma University Heavy Ion Medical Center, 3-39-22 Showa-machi, Maebashi, 371-8511, Gunma, Japan.
| | - Tatsuya Ohno
- Gunma University Heavy Ion Medical Center, 3-39-22 Showa-machi, Maebashi, 371-8511, Gunma, Japan.
| | - Takashi Nakano
- Department of Radiation Oncology, Gunma University Graduate School of Medicine, 3-39-22 Showa-machi, Maebashi, 371-8511, Gunma, Japan. .,Gunma University Heavy Ion Medical Center, 3-39-22 Showa-machi, Maebashi, 371-8511, Gunma, Japan.
| |
Collapse
|
9
|
Hirayama R, Uzawa A, Obara M, Takase N, Koda K, Ozaki M, Noguchi M, Matsumoto Y, Li H, Yamashita K, Koike S, Ando K, Shirai T, Matsufuji N, Furusawa Y. Determination of the relative biological effectiveness and oxygen enhancement ratio for micronuclei formation using high-LET radiation in solid tumor cells: An in vitro and in vivo study. MUTATION RESEARCH-GENETIC TOXICOLOGY AND ENVIRONMENTAL MUTAGENESIS 2015; 793:41-7. [PMID: 26520371 DOI: 10.1016/j.mrgentox.2015.08.003] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/08/2015] [Accepted: 08/10/2015] [Indexed: 11/27/2022]
Abstract
We determined the relative biological effectiveness (RBE) and oxygen enhancement ratio (OER) of micronuclei (MN) formation in clamped (hypoxic) and non-clamped (normoxic) solid tumors in mice legs following exposure to X-rays and heavy ions. Single-cell suspensions (aerobic) of non-irradiated tumors were prepared in parallel and used directly to determine the radiation response for aerobic cells. Squamous cell carcinoma (SCCVII) cells were transplanted into the right hind legs of syngeneic C3H/He male mice. Irradiation doses with either X-rays or heavy ions at a dose-averaged LET (linear energy transfer) of 14-192keV/μm were delivered to 5-mm diameter tumors and aerobic single-cells in sample-tubes. After irradiation, the tumors were excised and trypsinized to observe MN in single-cells. The single-cell suspensions were used for MN formation assays. The RBE values increased with increasing LET. The maximum RBE values for the three different oxygen conditions; hypoxic tumor, normoxic tumor, and aerobic cells, were 8.18, 5.30, and 3.76 at an LET of 192keV/μm, respectively. After X-irradiation, the OERh/n values (hypoxic tumor/normoxic tumor) were lower than the OERh/a (hypoxic tumor/aerobic cells), and were 1.73 and 2.58, respectively. We found that the OER for the in vivo studies were smaller in comparison to that for the in vitro studies. Both of the OER values at 192keV/μm were small in comparison to those of the X-ray irradiated samples. The OERh/n and OERh/a values at 192keV/μm were 1.12 and 1.19, respectively. Our results suggest that high LET radiation has a large biological effect even if a solid tumor includes substantial numbers of hypoxic cells. To conclude, we found that the RBE values under each oxygen state for non-MN fraction increased with increasing LET and that the OER values for both tumors in vivo and cells in vitro decreased with increasing LET.
Collapse
Affiliation(s)
- Ryoichi Hirayama
- Medical Physics Research Program, Research Center for Charged Particle Therapy, National Institute of Radiological Sciences (NIRS), 4-9-1 Anagawa, Inage-ku, Chiba-shi, Chiba 263-8555, Japan.
| | - Akiko Uzawa
- Medical Physics Research Program, Research Center for Charged Particle Therapy, National Institute of Radiological Sciences (NIRS), 4-9-1 Anagawa, Inage-ku, Chiba-shi, Chiba 263-8555, Japan
| | - Maki Obara
- Medical Physics Research Program, Research Center for Charged Particle Therapy, National Institute of Radiological Sciences (NIRS), 4-9-1 Anagawa, Inage-ku, Chiba-shi, Chiba 263-8555, Japan
| | - Nobuhiro Takase
- School of Engineering, Tokai University, 1117 Kitakaname, Hiratsuka-shi, Kanagawa 259-1292, Japan
| | - Kana Koda
- Medical Physics Research Program, Research Center for Charged Particle Therapy, National Institute of Radiological Sciences (NIRS), 4-9-1 Anagawa, Inage-ku, Chiba-shi, Chiba 263-8555, Japan
| | - Masakuni Ozaki
- Medical Physics Research Program, Research Center for Charged Particle Therapy, National Institute of Radiological Sciences (NIRS), 4-9-1 Anagawa, Inage-ku, Chiba-shi, Chiba 263-8555, Japan
| | - Miho Noguchi
- Advanced Science Research Center, Japan Atomic Energy Agency (JAEA), 2-4 Shirakata-Shirane, Tokai-mura, Naka-gun, Ibaraki 319-1195, Japan
| | - Yoshitaka Matsumoto
- Medical Physics Research Program, Research Center for Charged Particle Therapy, National Institute of Radiological Sciences (NIRS), 4-9-1 Anagawa, Inage-ku, Chiba-shi, Chiba 263-8555, Japan
| | - Huizi Li
- Medical Physics Research Program, Research Center for Charged Particle Therapy, National Institute of Radiological Sciences (NIRS), 4-9-1 Anagawa, Inage-ku, Chiba-shi, Chiba 263-8555, Japan
| | - Kei Yamashita
- Medical Physics Research Program, Research Center for Charged Particle Therapy, National Institute of Radiological Sciences (NIRS), 4-9-1 Anagawa, Inage-ku, Chiba-shi, Chiba 263-8555, Japan
| | - Sachiko Koike
- Medical Physics Research Program, Research Center for Charged Particle Therapy, National Institute of Radiological Sciences (NIRS), 4-9-1 Anagawa, Inage-ku, Chiba-shi, Chiba 263-8555, Japan
| | - Koichi Ando
- Heavy Ion Medical Center, Gunma University, 3-39-22 Showa-machi, Maebashi-shi, Gunma 371-8511, Japan
| | - Toshiyuki Shirai
- Medical Physics Research Program, Research Center for Charged Particle Therapy, National Institute of Radiological Sciences (NIRS), 4-9-1 Anagawa, Inage-ku, Chiba-shi, Chiba 263-8555, Japan
| | - Naruhiro Matsufuji
- Medical Physics Research Program, Research Center for Charged Particle Therapy, National Institute of Radiological Sciences (NIRS), 4-9-1 Anagawa, Inage-ku, Chiba-shi, Chiba 263-8555, Japan
| | - Yoshiya Furusawa
- Medical Physics Research Program, Research Center for Charged Particle Therapy, National Institute of Radiological Sciences (NIRS), 4-9-1 Anagawa, Inage-ku, Chiba-shi, Chiba 263-8555, Japan
| |
Collapse
|
10
|
Takahashi A, Kubo M, Ma H, Nakagawa A, Yoshida Y, Isono M, Kanai T, Ohno T, Furusawa Y, Funayama T, Kobayashi Y, Nakano T. Nonhomologous end-joining repair plays a more important role than homologous recombination repair in defining radiosensitivity after exposure to high-LET radiation. Radiat Res 2014; 182:338-44. [PMID: 25117625 DOI: 10.1667/rr13782.1] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
DNA double-strand breaks (DSBs) induced by ionizing radiation pose a major threat to cell survival. The cell can respond to the presence of DSBs through two major repair pathways: homologous recombination (HR) and nonhomologous end joining (NHEJ). Higher levels of cell death are induced by high-linear energy transfer (LET) radiation when compared to low-LET radiation, even at the same physical doses, due to less effective and efficient DNA repair. To clarify whether high-LET radiation inhibits all repair pathways or specifically one repair pathway, studies were designed to examine the effects of radiation with different LET values on DNA DSB repair and radiosensitivity. Embryonic fibroblasts bearing repair gene (NHEJ-related Lig4 and/or HR-related Rad54) knockouts (KO) were used and their responses were compared to wild-type cells. The cells were exposed to X rays, spread-out Bragg peak (SOBP) carbon ion beams as well as with carbon, iron, neon and argon ions. Cell survival was measured with colony-forming assays. The sensitization enhancement ratio (SER) values were calculated using the 10% survival dose of wild-type cells and repair-deficient cells. Cellular radiosensitivity was listed in descending order: double-KO cells > Lig4-KO cells > Rad54-KO cells > wild-type cells. Although Rad54-KO cells had an almost constant SER value, Lig4-KO cells showed a high-SER value when compared to Rad54-KO cells, even with increasing LET values. These results suggest that with carbon-ion therapy, targeting NHEJ repair yields higher radiosensitivity than targeting homologous recombination repair.
Collapse
Affiliation(s)
- Akihisa Takahashi
- a Advanced Scientific Research Leaders Development Unit, Gunma University, Japan
| | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|