1
|
Didier TSS, Joel GSC, Saïdou, Samuel BG, Maurice NM. Cosmic-ray exposure assessment using particle and heavy ion transport code system: case study Douala-Cameroon. Radiat Prot Dosimetry 2024; 200:640-647. [PMID: 38648184 DOI: 10.1093/rpd/ncae087] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/03/2023] [Revised: 02/14/2024] [Accepted: 04/02/2024] [Indexed: 04/25/2024]
Abstract
According to UNSCEAR, cosmic radiation contributes to ~16% (0.39 mSv/y) of the total dose received by the public at sea level. The exposure to cosmic rays at a specific location is therefore a non-negligible parameter that contributes to the assessment of the overall public exposure to radiation. In this study, simulations were conducted with the Particle and Heavy Ion Transport code System, a Monte Carlo code, to determine the fluxes and effective dose due to cosmic rays received by the population of Douala. In minimum solar activity, the total effective dose considering the contribution of neutron, muon+, muon-, electron, positron and photon, was found to be 0.31 ± 0.02 mSv/y at the ground level. For maximum solar activity, it was found to be 0.27 ± 0.02 mSv/y at ground level. During maximum solar activity, galactic cosmic rays are reduced by solar flares and winds, resulting in an increase in the solar cosmic-ray component and a decrease in the galactic cosmic-ray component on Earth. This ultimately leads to a decrease in the total cosmic radiation on Earth. These results were found to be smaller than the UNSCEAR values, thus suggesting a good estimation for the population of Douala city located near the equatorial line. In fact, the cosmic radiation is more deflected at the equator than near the pole. Muons+ were found to be the main contributors to human exposure to cosmic radiation at ground level, with ~38% of the total effective dose due to cosmic exposure. However, electrons and positrons were found to be the less contributors to cosmic radiation exposure. As regards the obtained results, the population of Douala is not significantly exposed to cosmic radiation.
Collapse
Affiliation(s)
- Takoukam Soh Serge Didier
- Department of Fundamental Sciences, University Institute of Wood Technology, University of Yaounde I, P.O. Box 306, Mbalmayo, Cameroon
| | | | - Saïdou
- Department of Physics, Nuclear Physics Laboratory, Faculty of Science, University of Yaounde I, P.O. Box 812, Yaounde, Cameroon
- Research Centre for Nuclear Science and Technology, Institute of Geological and Mining Research, P.O. Box 4110, Yaoundé, Cameroon
| | - Bineng Guillaume Samuel
- Department of Physics, Nuclear Physics Laboratory, Faculty of Science, University of Yaounde I, P.O. Box 812, Yaounde, Cameroon
- Research Centre for Nuclear Science and Technology, Institute of Geological and Mining Research, P.O. Box 4110, Yaoundé, Cameroon
| | - Ndontchueng Moyo Maurice
- National Radiation Protection Agency, P.O. Box 33732, Yaounde, Cameroon
- Department of Physics, Faculty of Science, University of Douala, P.O. Box 24157, Douala, Cameroon
| |
Collapse
|
2
|
Tsubouchi T, Beltran CJ, Yagi M, Hamatani N, Takashina M, Shimizu S, Kanai T, Furutani KM. Beam delivery characteristics of the Hitachi carbon ion scanning system at Osaka Heavy Ion Medical Accelerator in Kansai (HIMAK). Med Phys 2024; 51:2239-2250. [PMID: 37877590 DOI: 10.1002/mp.16791] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2023] [Revised: 09/15/2023] [Accepted: 09/28/2023] [Indexed: 10/26/2023] Open
Abstract
BACKGROUND Using the pencil beam raster scanning method employed at most carbon beam treatment facilities, spots can be moved without interrupting the beam, allowing for the delivery of a dose between spots (move dose). This technique is also known as Dose-Driven-Continuous-Scanning (DDCS). To minimize its impact on HIMAK patient dosimetry, there's an upper limit to the move dose. Spots within a layer are grouped into sets, or "break points," allowing continuous irradiation. The beam is turned off when transitioning between sets or at the end of a treatment layer or spill. The control system beam-off is accomplished by turning off the RF Knockout (RFKO) extraction and after a brief delay the High Speed Steering Magnet (HSST) redirects the beam transport away from isocenter to a beam dump. PURPOSE The influence of the move dose and beam on/off control on the dose distribution and irradiation time was evaluated by measurements never before reported and modelled for Hitachi Carbon DDCS. METHOD We conducted fixed-point and scanning irradiation experiments at three different energies, both with and without breakpoints. For fixed-point irradiation, we utilized a 2D array detector and an oscilloscope to measure beam intensity over time. The oscilloscope data enabled us to confirm beam-off and beam-on timing due to breakpoints, as well as the relative timing of the RFKO signal, HSST signal, and dose monitor (DM) signals. From these measurements, we analyzed and modelled the temporal characteristics of the beam intensity. We also developed a model for the spot shape and amplitude at isocenter occurring after the beam-off signal which we called flap dose and its dependence on beam intensity. In the case of scanning irradiation, we measured move doses using the 2D array detector and compared these measurements with our model. RESULT We observed that the most dominant time variation of the beam intensity was at 1 kHz and its harmonic frequencies. Our findings revealed that the derived beam intensity cannot reach the preset beam intensity when each spot belongs to different breakpoints. The beam-off time due to breakpoints was approximately 100 ms, while the beam rise time and fall time (tdecay ) were remarkably fast, about 10 ms and 0.2 ms, respectively. Moreover, we measured the time lag (tdelay ) of approximately 0.2 ms between the RFKO and HSST signals. Since tdelay ≈ tdecay at HIMAK then the HSST is activated after the residual beam intensity, resulting in essentially zero flap dose at isocenter from the HSST. Our measurements of the move dose demonstrated excellent agreement with the modelled move dose. CONCLUSION We conducted the first move dose measurement for a Hitachi Carbon synchrotron, and our findings, considering beam on/off control details, indicate that Hitachi's carbon synchrotron provides a stable beam at HIMAK. Our work suggests that measuring both move dose and flap dose should be part of the commissioning process and possibly using our model in the Treatment Planning System (TPS) for new facilities with treatment delivery control systems with higher beam intensities and faster beam-off control.
Collapse
Affiliation(s)
- Toshiro Tsubouchi
- Department of Medical Physics, Osaka Heavy Ion Therapy Center, Osaka, Japan
| | - Chris J Beltran
- Department of Carbon Ion Radiotherapy, Osaka University Graduate School of Medicine, Osaka, Japan
- Department of Radiation Oncology, Division of Medical Physics, Mayo Clinic, Jacksonville, Florida, USA
| | - Masashi Yagi
- Department of Medical Physics, Osaka Heavy Ion Therapy Center, Osaka, Japan
- Department of Carbon Ion Radiotherapy, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Noriaki Hamatani
- Department of Medical Physics, Osaka Heavy Ion Therapy Center, Osaka, Japan
| | - Masaaki Takashina
- Department of Medical Physics, Osaka Heavy Ion Therapy Center, Osaka, Japan
| | - Shinichi Shimizu
- Department of Carbon Ion Radiotherapy, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Tatsuaki Kanai
- Department of Carbon Ion Radiotherapy, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Keith M Furutani
- Department of Carbon Ion Radiotherapy, Osaka University Graduate School of Medicine, Osaka, Japan
- Department of Radiation Oncology, Division of Medical Physics, Mayo Clinic, Jacksonville, Florida, USA
| |
Collapse
|
3
|
Tanaka S, Nakaji T, Mizuno H, Mizushima K, Katagiri K, Kasamatsu K, Masuda T, Inaniwa T. [Safety Analysis Using Event Tree Analysis for Multi-Ion Therapy]. Igaku Butsuri 2024; 44:1-7. [PMID: 38583957 DOI: 10.11323/jjmp.44.1_1] [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] [Subscribe] [Scholar Register] [Indexed: 04/09/2024]
Abstract
At the National Institutes for Quantum Science and Technology (QST), a multi-ion therapy using helium, carbon, oxygen, and neon ions has been studied for charged particle therapy with more optimal biological effects. To make multi-ion therapy clinically feasible, a new treatment system was developed to realize the changes of the ion species in each irradiation using the Heavy Ion Medial Accelerator in Chiba (HIMAC). Since radiation therapy is safety-critical, it is necessary to construct a safety system that includes multiple safety barriers in the new treatment system for multi-ion therapy and to perform a safety analysis for the prevention of serious accidents. In this study, we conducted a safety analysis using event tree analysis (ETA) for newly introduced processes in the treatment planning, accelerator, and irradiation system of the multi-ion therapy. ETA is an optimal method to verify multiple safety barriers that are essential for medical safety and to shorten the time for safety analysis by focusing only on the new processes. Through ETA, we clarified the types of malfunctions and human errors that may lead to serious accidents in the new system for multi-ion therapy, and verified whether safety barriers such as interlock systems and human check procedures are sufficient to prevent such malfunctions and human errors. As a result, 6 initial events which may lead to serious accidents were listed in the treatment planning process, 16 initial events were listed in the accelerator system, and 13 initial events were listed in the irradiation system. Among these 35 initial events, 5 cautionary initial events were identified that could lead to serious final events and they had a probability of occurrence higher than 10-4. Meanwhile, the others were all initial events that do not lead to serious accidents, or the initial events that can lead to serious accidents but were considered to have sufficient safety barriers. The safety analysis using ETA successfully identified the system malfunctions and the human errors that can lead to serious accidents, and the multiple safety barriers against them were systematically analyzed. It became clear that the multiple safety barriers were not sufficient for some initial events. We plan to improve the safety barriers for the five cautionary initial events before the start of the clinical trial. Based on these findings, we achieved our objective to conduct a safety analysis for a new treatment system for multi-ion therapy. The safety analysis procedure using ETA proposed by this study will be effective when new systems for radiotherapy are established at QST and other facilities in the future as well.
Collapse
Affiliation(s)
- Sodai Tanaka
- Department of Accelerator and Medical Physics, Institute for Quantum Medical Science, Quantum Life and Medical Science Directorate, National Institutes for Quantum Science and Technology
- Radiation Quality Control Section, QST Hospital, Quantum Life and Medical Science Directorate, National Institutes for Quantum Science and Technology
| | - Taku Nakaji
- Radiation Quality Control Section, QST Hospital, Quantum Life and Medical Science Directorate, National Institutes for Quantum Science and Technology
| | - Hideyuki Mizuno
- Department of Accelerator and Medical Physics, Institute for Quantum Medical Science, Quantum Life and Medical Science Directorate, National Institutes for Quantum Science and Technology
- Radiation Quality Control Section, QST Hospital, Quantum Life and Medical Science Directorate, National Institutes for Quantum Science and Technology
| | - Kota Mizushima
- Department of Accelerator and Medical Physics, Institute for Quantum Medical Science, Quantum Life and Medical Science Directorate, National Institutes for Quantum Science and Technology
- Radiation Quality Control Section, QST Hospital, Quantum Life and Medical Science Directorate, National Institutes for Quantum Science and Technology
| | - Ken Katagiri
- Department of Accelerator and Medical Physics, Institute for Quantum Medical Science, Quantum Life and Medical Science Directorate, National Institutes for Quantum Science and Technology
| | - Koki Kasamatsu
- Department of Accelerator and Medical Physics, Institute for Quantum Medical Science, Quantum Life and Medical Science Directorate, National Institutes for Quantum Science and Technology
| | - Takamitsu Masuda
- Department of Accelerator and Medical Physics, Institute for Quantum Medical Science, Quantum Life and Medical Science Directorate, National Institutes for Quantum Science and Technology
| | - Taku Inaniwa
- Department of Accelerator and Medical Physics, Institute for Quantum Medical Science, Quantum Life and Medical Science Directorate, National Institutes for Quantum Science and Technology
- Radiation Quality Control Section, QST Hospital, Quantum Life and Medical Science Directorate, National Institutes for Quantum Science and Technology
| |
Collapse
|
4
|
Cassaro A, Pacelli C, Baqué M, Maturilli A, Böttger U, Fujimori A, Moeller R, de Vera JPP, Onofri S. Spectroscopic investigations of fungal biomarkers after exposure to heavy ion irradiation. Spectrochim Acta A Mol Biomol Spectrosc 2023; 302:123073. [PMID: 37453382 DOI: 10.1016/j.saa.2023.123073] [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] [Subscribe] [Scholar Register] [Received: 01/10/2023] [Revised: 06/20/2023] [Accepted: 06/21/2023] [Indexed: 07/18/2023]
Abstract
The main objective of the ongoing and future space exploration missions is the search for traces of extant or extinct life (biomarkers) on Mars. One of the main limiting factors on the survival of Earth-like life is the presence of harmful space radiation, that could damage or modify also biomolecules, therefore understanding the effects of radiation on terrestrial biomolecules stability and detectability is of utmost importance. Which terrestrial molecules could be preserved in a Martian radiation scenario? Here, we investigated the potential endurance of fungal biomolecules, by exposing de-hydrated colonies of the Antarctic cryptoendolithic black fungus Cryomyces antarcticus mixed with Antarctic sandstone and with two Martian regolith analogues to increasing doses (0, 250 and 1000 Gy) of accelerated ions, namely iron (Fe), argon (Ar) and helium (He) ions. We analyzed the feasibility to detect fungal compounds with Raman and Infrared spectroscopies after exposure to these space-relevant radiations.
Collapse
Affiliation(s)
- A Cassaro
- Department of Ecological and Biological Sciences, University of Tuscia, Largo dell'Università snc, 01100 Viterbo, Italy
| | - C Pacelli
- Department of Ecological and Biological Sciences, University of Tuscia, Largo dell'Università snc, 01100 Viterbo, Italy; Italian Space Agency, Via del Politecnico snc, Rome, Italy.
| | - M Baqué
- German Aerospace Center (DLR), Institute of Planetary Research, Planetary Laboratories Department Berlin, Germany
| | - A Maturilli
- German Aerospace Center (DLR), Institute of Planetary Research, Planetary Laboratories Department Berlin, Germany
| | - U Böttger
- German Aerospace Center (DLR), Institute of Optical Sensor Systems Berlin, Germany
| | - A Fujimori
- Molecular and Cellular Radiation Biology Group, Department of Basic Medical Sciences for Radiation Damages, NIRS/QST, Chiba, Japan
| | - R Moeller
- German Aerospace Center, Institute of Aerospace Medicine, Radiation Biology Department, Space Microbiology Research Group, DLR, Linder Höhe, D-51147 Köln, Germany; University of Applied Sciences Bonn-Rhein-Sieg (BRSU), Natural Sciences, von-Liebig-Straße 20, D-53359 Rheinbach, Germany
| | - J-P P de Vera
- German Aerospace Center (DLR), Space Operations and Astronaut Training, MUSC, Linder Höhe, D-51147 Köln, Germany; University of Potsdam, Institute for Biochemistry and Biology, WG Biodiversity/ Systematic Botany, Maulbeerallee 1, 14469 Potsdam, Germany
| | - S Onofri
- Department of Ecological and Biological Sciences, University of Tuscia, Largo dell'Università snc, 01100 Viterbo, Italy
| |
Collapse
|
5
|
Qiu X, Gao J, Hu J, Yang J, Hu W, Huang Q, Zhang H, Lu JJ, Kong L. Particle beam radiotherapy in the treatment of WHO grade 2 and 3 meningiomas: an early experience from Shanghai Proton and Heavy Ion Center. J Neurooncol 2023; 165:241-250. [PMID: 37976030 DOI: 10.1007/s11060-023-04401-8] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Accepted: 07/17/2023] [Indexed: 11/19/2023]
Abstract
PURPOSE To investigate the efficacy and safety of particle beam radiotherapy (PBRT) in the management of patients with WHO grade 2 and 3 meningiomas. METHODS Thirty-six consecutive and non-selected patients with WHO grade 2 (n = 28) and grade 3 (n = 8) meningiomas were treated at the Shanghai Proton and Heavy Ion Center, from May 2015 to March 2022. The median age of the cohort at PBRT was 48 years. There were 25 and 11 patients treated with PBRT in the setting of newly diagnosed diseases and progressive/recurrent diseases, respectively. PBRT was utilized as re-irradiation in 5 patients. Proton radiotherapy (PRT) and carbon-ion radiotherapy (CIRT), with a median dose of 60 Gy-Equivalent (GyE), were provided to 30 and 6 patients, respectively. RESULTS With a median follow-up of 23.3 months, the local control rates were 92.0%, 82.0%, and 82.0% at 1, 2, and 3 years for the entire cohort, respectively. Patients with WHO grade 2 meningiomas (100%, 94.1%, 94,1% at 1,2,3 years) had a much better local control than those with WHO grade 3 meningiomas (50%, 25%, 25% at 1,2,3 years; P < 0.001). Three patients, all with WHO grade 3 meningiomas, had deceased at the time of this analysis. Multivariate analyses revealed that WHO grade (grade 2 vs. 3) (p = 0.016) was a significant prognosticator for local control. No severe toxicities (G3 or above) were observed. CONCLUSIONS Treatment-induced efficacy and toxicities to PBRT in WHO grade 2 and 3 meningiomas were both highly acceptable. Longer follow-up is needed to evaluate the long-term outcome in terms of disease control, survival, as well as potential late effects.
Collapse
Affiliation(s)
- Xianxin Qiu
- Shanghai Key Laboratory of Radiation Oncology (20dz2261000), Shanghai, China
- Department of Radiation Oncology, Huashan Hospital, Fudan University, Shanghai, China
| | - Jing Gao
- Shanghai Key Laboratory of Radiation Oncology (20dz2261000), Shanghai, China
- Department of Radiation Oncology, Shanghai Proton and Heavy Ion Center, Shanghai, China
- Shanghai Engineering Research Center of Proton and Heavy Ion Radiation Therapy, Shanghai, China
| | - Jiyi Hu
- Shanghai Key Laboratory of Radiation Oncology (20dz2261000), Shanghai, China
- Department of Radiation Oncology, Shanghai Proton and Heavy Ion Center, Shanghai, China
- Shanghai Engineering Research Center of Proton and Heavy Ion Radiation Therapy, Shanghai, China
| | - Jing Yang
- Shanghai Key Laboratory of Radiation Oncology (20dz2261000), Shanghai, China
- Department of Radiation Oncology, Shanghai Proton and Heavy Ion Center, Shanghai, China
- Shanghai Engineering Research Center of Proton and Heavy Ion Radiation Therapy, Shanghai, China
| | - Weixu Hu
- Shanghai Key Laboratory of Radiation Oncology (20dz2261000), Shanghai, China
- Department of Radiation Oncology, Shanghai Proton and Heavy Ion Center, Shanghai, China
- Shanghai Engineering Research Center of Proton and Heavy Ion Radiation Therapy, Shanghai, China
| | - Qingting Huang
- Shanghai Key Laboratory of Radiation Oncology (20dz2261000), Shanghai, China
- Department of Radiation Oncology, Shanghai Proton and Heavy Ion Center, Shanghai, China
- Shanghai Engineering Research Center of Proton and Heavy Ion Radiation Therapy, Shanghai, China
| | - Haojiong Zhang
- Shanghai Key Laboratory of Radiation Oncology (20dz2261000), Shanghai, China
- Department of Radiation Oncology, Shanghai Proton and Heavy Ion Center, Shanghai, China
- Shanghai Engineering Research Center of Proton and Heavy Ion Radiation Therapy, Shanghai, China
| | - Jiade J Lu
- Proton and Heavy Ion Center, Heyou International Hospital, Tumor, Guangdong, China
| | - Lin Kong
- Shanghai Key Laboratory of Radiation Oncology (20dz2261000), Shanghai, China.
- Shanghai Engineering Research Center of Proton and Heavy Ion Radiation Therapy, Shanghai, China.
- Department of Radiation Oncology, Shanghai Proton and Heavy Ion Center, Fudan University Cancer Hospital, Shanghai, China.
| |
Collapse
|
6
|
Liu S, Wang F, Chen H, Yang Z, Ning Y, Chang C, Yang D. New Insights into Radio-Resistance Mechanism Revealed by (Phospho)Proteome Analysis of Deinococcus Radiodurans after Heavy Ion Irradiation. Int J Mol Sci 2023; 24:14817. [PMID: 37834265 PMCID: PMC10572868 DOI: 10.3390/ijms241914817] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2023] [Revised: 09/23/2023] [Accepted: 09/27/2023] [Indexed: 10/15/2023] Open
Abstract
Deinococcus radiodurans (D. radiodurans) can tolerate various extreme environments including radiation. Protein phosphorylation plays an important role in radiation resistance mechanisms; however, there is currently a lack of systematic research on this topic in D. radiodurans. Based on label-free (phospho)proteomics, we explored the dynamic changes of D. radiodurans under various doses of heavy ion irradiation and at different time points. In total, 2359 proteins and 1110 high-confidence phosphosites were identified, of which 66% and 23% showed significant changes, respectively, with the majority being upregulated. The upregulated proteins at different states (different doses or time points) were distinct, indicating that the radio-resistance mechanism is dose- and stage-dependent. The protein phosphorylation level has a much higher upregulation than protein abundance, suggesting phosphorylation is more sensitive to irradiation. There were four distinct dynamic changing patterns of phosphorylation, most of which were inconsistent with protein levels. Further analysis revealed that pathways related to RNA metabolism and antioxidation were activated after irradiation, indicating their importance in radiation response. We also screened some key hub phosphoproteins and radiation-responsive kinases for further study. Overall, this study provides a landscape of the radiation-induced dynamic change of protein expression and phosphorylation, which provides a basis for subsequent functional and applied studies.
Collapse
Affiliation(s)
- Shihao Liu
- State Key Laboratory of Proteomics, Beijing Proteome Research Center, National Center for Protein Sciences (Beijing), Beijing Institute of Lifeomics, Beijing 102206, China; (S.L.); (H.C.); (Y.N.); (C.C.)
| | - Fei Wang
- State Key Laboratory of Proteomics, Beijing Proteome Research Center, National Center for Protein Sciences (Beijing), Beijing Institute of Lifeomics, Beijing 102206, China; (S.L.); (H.C.); (Y.N.); (C.C.)
| | - Heye Chen
- State Key Laboratory of Proteomics, Beijing Proteome Research Center, National Center for Protein Sciences (Beijing), Beijing Institute of Lifeomics, Beijing 102206, China; (S.L.); (H.C.); (Y.N.); (C.C.)
| | - Zhixiang Yang
- College of Life Sciences, Hebei University, Baoding 071002, China;
| | - Yifan Ning
- State Key Laboratory of Proteomics, Beijing Proteome Research Center, National Center for Protein Sciences (Beijing), Beijing Institute of Lifeomics, Beijing 102206, China; (S.L.); (H.C.); (Y.N.); (C.C.)
- College of Life Sciences, Hebei University, Baoding 071002, China;
| | - Cheng Chang
- State Key Laboratory of Proteomics, Beijing Proteome Research Center, National Center for Protein Sciences (Beijing), Beijing Institute of Lifeomics, Beijing 102206, China; (S.L.); (H.C.); (Y.N.); (C.C.)
| | - Dong Yang
- State Key Laboratory of Proteomics, Beijing Proteome Research Center, National Center for Protein Sciences (Beijing), Beijing Institute of Lifeomics, Beijing 102206, China; (S.L.); (H.C.); (Y.N.); (C.C.)
| |
Collapse
|
7
|
Rana S, Handa S, Aggarwal Y, Puri S, Chatterjee M. Role of Candida in the bioremediation of pollutants: a review. Lett Appl Microbiol 2023; 76:ovad103. [PMID: 37673682 DOI: 10.1093/lambio/ovad103] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2022] [Revised: 06/30/2023] [Accepted: 09/04/2023] [Indexed: 09/08/2023]
Abstract
The population and modernization of society have increased dramatically from past few decades. In order to meet societal expectations, there has been a massive industrialization and resource exploitation. Anthropogenic practices like disposal of hazardous waste, large carbon footprint release variety of xenobiotic substances into the environment, which endanger the health of the natural ecosystem. Therefore, discovering proper long-term treatment approaches is a global concern. Various physical and chemical approaches are employed to remove contaminants. However, these technologies possess limitations like high cost and low efficacy. Consequently, bioremediation is regarded as one of the most promising remedies to these problems. It creates the option of either totally removing pollutants or transforming them into nonhazardous compounds with the use of natural biological agents. Several microorganisms are being utilized for bioremediation among which yeasts possess benefits such as high biodegradability, ease of cultivation etc. The yeast of Candida genus has the capability to effectively eliminate heavy metal ions, as well as to degrade and emulsify hydrocarbons which makes it a promising candidate for this purpose. The review highlights many potential uses of Candida in various remediation strategies and discusses future directions for research in this field.
Collapse
Affiliation(s)
- Samriti Rana
- Biotechnology Branch, University Institute of Engineering and Technology, Panjab University, Chandigarh 160014, India
| | - Shristi Handa
- Biotechnology Branch, University Institute of Engineering and Technology, Panjab University, Chandigarh 160014, India
| | - Yadu Aggarwal
- Biotechnology Branch, University Institute of Engineering and Technology, Panjab University, Chandigarh 160014, India
| | - Sanjeev Puri
- Biotechnology Branch, University Institute of Engineering and Technology, Panjab University, Chandigarh 160014, India
| | - Mary Chatterjee
- Biotechnology Branch, University Institute of Engineering and Technology, Panjab University, Chandigarh 160014, India
| |
Collapse
|
8
|
Wang Z, Yang G, Zhou X, Peng X, Li M, Zhang M, Lu D, Yang D, Cheng L, Ren B. Heavy Ion Radiation Directly Induced the Shift of Oral Microbiota and Increased the Cariogenicity of Streptococcus mutans. Microbiol Spectr 2023; 11:e0132223. [PMID: 37310225 PMCID: PMC10434067 DOI: 10.1128/spectrum.01322-23] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Accepted: 05/19/2023] [Indexed: 06/14/2023] Open
Abstract
Radiation caries is one of the most common complications of head and neck radiotherapy. A shift in the oral microbiota is the main factor of radiation caries. A new form of biosafe radiation, heavy ion radiation, is increasingly being applied in clinical treatment due to its superior depth-dose distribution and biological effects. However, how heavy ion radiation directly impacts the oral microbiota and the progress of radiation caries are unknown. Here, unstimulated saliva samples from both healthy and caries volunteers and caries-related bacteria were directly exposed to therapeutic doses of heavy ion radiation to determine the effects of radiation on oral microbiota composition and bacterial cariogenicity. Heavy ion radiation significantly decreased the richness and diversity of oral microbiota from both healthy and caries volunteers, and a higher percentage of Streptococcus was detected in radiation groups. In addition, heavy ion radiation significantly enhanced the cariogenicity of saliva-derived biofilms, including the ratios of the genus Streptococcus and biofilm formation. In the Streptococcus mutans-Streptococcus sanguinis dual-species biofilms, heavy ion radiation increased the ratio of S. mutans. Next, S. mutans was directly exposed to heavy ions, and the radiation significantly upregulated the gtfC and gtfD cariogenic virulence genes to enhance the biofilm formation and exopolysaccharides synthesis of S. mutans. Our study demonstrated, for the first time, that direct exposure to heavy ion radiation can disrupt the oral microbial diversity and balance of dual-species biofilms by increasing the virulence of S. mutans, increasing its cariogenicity, indicating a potential correlation between heavy ions and radiation caries. IMPORTANCE The oral microbiome is crucial to understanding the pathogenesis of radiation caries. Although heavy ion radiation has been used to treat head and neck cancers in some proton therapy centers, its correlation with dental caries, especially its direct effects on the oral microbiome and cariogenic pathogens, has not been reported previously. Here, we showed that the heavy ion radiation directly shifted the oral microbiota from a balanced state to a caries-associated state by increasing the cariogenic virulence of S. mutans. Our study highlighted the direct effect of heavy ion radiation on oral microbiota and the cariogenicity of oral microbes for the first time.
Collapse
Affiliation(s)
- Zheng Wang
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & West China Hospital of Stomatology, Sichuan University, Chengdu, China
- College of Stomatology, Chongqing Medical University, Chongqing, China
| | - Ge Yang
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Xuedong Zhou
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Xian Peng
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Mingyun Li
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Miaomiao Zhang
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, China
| | - Dong Lu
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, China
| | - Deqin Yang
- College of Stomatology, Chongqing Medical University, Chongqing, China
| | - Lei Cheng
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Biao Ren
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & West China Hospital of Stomatology, Sichuan University, Chengdu, China
| |
Collapse
|
9
|
Wiggs MP, Lee Y, Shimkus KL, O'Reilly CI, Lima F, Macias BR, Shirazi-Fard Y, Greene ES, Hord JM, Braby LA, Carroll CC, Lawler JM, Bloomfield SA, Fluckey JD. Combined effects of heavy ion exposure and simulated Lunar gravity on skeletal muscle. Life Sci Space Res (Amst) 2023; 37:39-49. [PMID: 37087178 DOI: 10.1016/j.lssr.2023.02.003] [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] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Revised: 01/04/2023] [Accepted: 02/19/2023] [Indexed: 05/03/2023]
Abstract
BACKGROUND The limitations to prolonged spaceflight include unloading-induced atrophy of the musculoskeletal system which may be enhanced by exposure to the space radiation environment. Previous results have concluded that partial gravity, comparable to the Lunar surface, may have detrimental effects on skeletal muscle. However, little is known if these outcomes are exacerbated by exposure to low-dose rate, high-energy radiation common to the space environment. Therefore, the present study sought to determine the impact of highly charge, high-energy (HZE) radiation on skeletal muscle when combined with partial weightbearing to simulate Lunar gravity. We hypothesized that partial unloading would compromise skeletal muscle and these effects would be exacerbated by radiation exposure. METHODS For month old female BALB/cByJ mice were -assigned to one of 2 groups; either full weight bearing (Cage Controls, CC) or partial weight bearing equal to 1/6th bodyweight (G/6). Both groups were then divided to receive either a single whole body absorbed dose of 0.5 Gy of 300 MeV 28Si ions (RAD) or a sham treatment (SHAM). Radiation exposure experiments were performed at the NASA Space Radiation Laboratory (NSRL) located at Brookhaven National Laboratory on Day 0, followed by 21 d of CC or G/6 loading. Muscles of the hind limb were used to measure protein synthesis and other histological measures. RESULTS Twenty-one days of Lunar gravity (G/6) resulted in lower soleus, plantaris, and gastrocnemius muscle mass. Radiation exposure did not further impact muscle mass. 28Si exposure in normal ambulatory animals (RAD+CC) did not impact gastrocnemius muscle mass when compared to SHAM+CC (p>0.05), but did affect the soleus, where mass was higher following radiation compared to SHAM (p<0.05). Mixed gastrocnemius muscle protein synthesis was lower in both unloading groups. Fiber type composition transitioned towards a faster isoform with partial unloading and was not further impacted by radiation. The combined effects of partial loading and radiation partially mitigated fiber cross-sectional area when compared to partial loading alone. Radiation and G/6 reduced the total number of myonuclei per fiber while leading to elevated BrdU content of skeletal muscle. Similarly, unloading and radiation resulted in higher collagen content of muscle when compared to controls, but the effects of combined exposure were not additive. CONCLUSIONS The results of this study confirm that partial weightbearing causes muscle atrophy, in part due to reductions of muscle protein synthesis in the soleus and gastrocnemius as well as reduced peripheral nuclei per fiber. Additionally, we present novel data illustrating 28Si exposure reduced nuclei in muscle fibers despite higher satellite cell fusion, but did not exacerbate muscle atrophy, CSA changes, or collagen content. In conclusion, both partial loading and HZE radiation can negatively impact muscle morphology.
Collapse
Affiliation(s)
- Michael P Wiggs
- Department of Health & Kinesiology, Texas A&M University, College Station, TX, United States; Department of Health, Human Performance and Recreation, Baylor University, Waco, TX, United States.
| | - Yang Lee
- Department of Health & Kinesiology, Texas A&M University, College Station, TX, United States
| | - Kevin L Shimkus
- Department of Health & Kinesiology, Texas A&M University, College Station, TX, United States
| | - Colleen I O'Reilly
- Department of Health & Kinesiology, Texas A&M University, College Station, TX, United States
| | - Florence Lima
- Department of Health & Kinesiology, Texas A&M University, College Station, TX, United States
| | - Brandon R Macias
- Department of Health & Kinesiology, Texas A&M University, College Station, TX, United States; NASA Johnson Space Center, Houston, Texas, United States
| | - Yasaman Shirazi-Fard
- Department of Health & Kinesiology, Texas A&M University, College Station, TX, United States; NASA Ames Research Center, Moffett Field, CA, United States
| | - Elizabeth S Greene
- Department of Health & Kinesiology, Texas A&M University, College Station, TX, United States
| | - Jeffrey M Hord
- Department of Health & Kinesiology, Texas A&M University, College Station, TX, United States
| | - Leslie A Braby
- Department of Nuclear Engineering, Texas A&M University, College Station, TX, United States
| | - Chad C Carroll
- Department of Physiology, Purdue University, West Lafayette, IN, United States
| | - John M Lawler
- Department of Health & Kinesiology, Texas A&M University, College Station, TX, United States
| | - Susan A Bloomfield
- Department of Health & Kinesiology, Texas A&M University, College Station, TX, United States
| | - James D Fluckey
- Department of Health & Kinesiology, Texas A&M University, College Station, TX, United States
| |
Collapse
|
10
|
Choi CM, Woo SJ. Radiation Retinopathy after Heavy Ion Particle Therapy for Maxillary Sinus Cancer: A Case Report. Korean J Ophthalmol 2023; 37:88-90. [PMID: 36549332 PMCID: PMC9935066 DOI: 10.3341/kjo.2022.0119] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2022] [Accepted: 11/02/2022] [Indexed: 12/24/2022] Open
Affiliation(s)
- Choong Man Choi
- Department of Ophthalmology, Seoul National University Bundang Hospital, Seongnam, Korea
| | - Se Joon Woo
- Department of Ophthalmology, Seoul National University Bundang Hospital, Seongnam, Korea
- Department of Ophthalmology, Seoul National University College of Medicine, Seoul, Korea
- E-mail (Se Joon Woo):
| |
Collapse
|
11
|
Weiss M, Nikisher B, Haran H, Tefft K, Adams J, Edwards JG. High throughput screen of small molecules as potential countermeasures to galactic cosmic radiation induced cellular dysfunction. Life Sci Space Res (Amst) 2022; 35:76-87. [PMID: 36336373 DOI: 10.1016/j.lssr.2022.06.006] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [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: 03/03/2022] [Revised: 05/23/2022] [Accepted: 06/16/2022] [Indexed: 06/16/2023]
Abstract
Space travel increases galactic cosmic ray exposure to flight crews and this is significantly elevated once travel moves beyond low Earth orbit. This includes combinations of high energy protons and heavy ions such as 56Fe or 16O. There are distinct differences in the biological response to low-energy transfer (x-rays) or high-energy transfer (High-LET). However, given the relatively low fluence rate of exposure during flight operations, it might be possible to manage these deleterious effects using small molecules currently available. Virtually all reports to date examining small molecule management of radiation exposure are based on low-LET challenges. To that end an FDA approved drug library (725 drugs) was used to perform a high throughput screen of cultured cells following exposure to galactic cosmic radiation. The H9c2 myoblasts, ES-D3 pluripotent cells, and Hy926 endothelial cell lines were exposed to a single exposure (75 cGy) using the 5-ion GCRsim protocol developed at the NASA Space Radiation Laboratory (NSRL). Following GCR exposure cells were maintained for up to two weeks. For each drug (@10µM), a hierarchical cumulative score was developed incorporating measures of mitochondrial and cellular function, oxidant stress and cell senescence. The top 160 scores were retested following a similar protocol using 1µM of each drug. Within the 160 drugs, 33 are considered to have an anti-inflammatory capacity, while others also indirectly suppressed pro-inflammatory pathways or had noted antioxidant capacity. Lead candidates came from different drug classes that included angiotensin converting enzyme inhibitors or AT1 antagonists, COX2 inhibitors, as well as drugs mediated by histamine receptors. Surprisingly, different classes of anti-diabetic medications were observed to be useful including sulfonylureas and metformin. Using a hierarchical decision structure, we have identified several lead candidates. That no one drug or even drug class was completely successful across all parameters tested suggests the complexity of managing the consequences of galactic cosmic radiation exposure.
Collapse
Affiliation(s)
- M Weiss
- Department of Physiology, New York Medical College, Valhalla, New York
| | - B Nikisher
- Department of Physiology, New York Medical College, Valhalla, New York
| | - H Haran
- Department of Physiology, New York Medical College, Valhalla, New York
| | - K Tefft
- Department of Physiology, New York Medical College, Valhalla, New York
| | - J Adams
- Department of Physiology, New York Medical College, Valhalla, New York
| | - J G Edwards
- Department of Physiology, New York Medical College, Valhalla, New York.
| |
Collapse
|
12
|
Liu R, Miao Q, Shi G, Liu Y, Du X, Qiang X, Ma Y, Xuan L, Zheng S. [Development and Application of the First Carbon Ion Therapy System in China]. Zhongguo Yi Liao Qi Xie Za Zhi 2022; 46:517-522. [PMID: 36254479 DOI: 10.3969/j.issn.1671-7104.2022.05.009] [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] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
At present, heavy ion is an ideal radiation for cancer treatment, and carbon ion is used in the treatment of many kinds of cancer due to its higher relative biological effect value. In 2019, Wuwei heavy ion center built the first medical heavy ion accelerator-carbon ion radiotherapy system in China, and obtained the registration license from the National Medical Products Administration, and officially received cancer patients in March 2020. This study introduced the development and application of the first carbon ion radiotherapy system in China.
Collapse
Affiliation(s)
- Rong Liu
- Gansu Center for Drugs and Medical Devices Adverse Reaction Monitoring, Lanzhou, 730070
| | - Qian Miao
- School of Public Health, Lanzhou University, Lanzhou, 730000
| | - Guoxiu Shi
- School of Public Health, Lanzhou University, Lanzhou, 730000
| | - Yuqin Liu
- Gansu Center for Drugs and Medical Devices Adverse Reaction Monitoring, Lanzhou, 730070
| | - Xiaoyue Du
- Gansu Center for Drugs and Medical Devices Adverse Reaction Monitoring, Lanzhou, 730070
| | - Xiaoting Qiang
- Gansu Center for Drugs and Medical Devices Adverse Reaction Monitoring, Lanzhou, 730070
| | - Yinxia Ma
- Gansu Center for Drugs and Medical Devices Adverse Reaction Monitoring, Lanzhou, 730070
| | - Lihong Xuan
- Gansu Center for Drugs and Medical Devices Adverse Reaction Monitoring, Lanzhou, 730070
| | - Shan Zheng
- School of Public Health, Lanzhou University, Lanzhou, 730000
| |
Collapse
|
13
|
Ramos RL, Embriaco A, Carante MP, Ferrari A, Sala P, Vercesi V, Ballarini F. Radiobiological damage by space radiation: extension of the BIANCA model to heavy ions up to iron, and pilot application to cosmic ray exposure. J Radiol Prot 2022; 42:021523. [PMID: 35453133 DOI: 10.1088/1361-6498/ac6991] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [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: 02/08/2022] [Accepted: 04/22/2022] [Indexed: 06/14/2023]
Abstract
Space research seems to be object of a renewed interest, also considering that human missions to the Moon, and possibly Mars, are being planned. Among the risks affecting such missions, astronauts' exposure to space radiation is a major concern. In this work, the question of the evaluation of biological damage by Galactic Cosmic Rays (GCR) was addressed by a biophysical model called BIophysical ANalysis of Cell death and chromosome Aberrations (BIANCA), which simulates the induction of cell death and chromosome aberrations by different ions. While previously BIANCA has been validated for calculating cell death along hadrontherapy beams up to oxygen, herein the approach was extended up to Fe ions. Specifically, experimental survival curves available in literature for V79 cells irradiated by Si-, Ne-, Ar- and Fe-ions were reproduced, and a reference radiobiological database describing V79 cell survival as a function of ion type (1 ⩽Z⩽ 26), energy and dose was constructed. Analogous databases were generated for Chinese hamster ovary hamster cells and human skin fibroblasts, finding good agreement between simulations and data. Concerning chromosome aberrations, which are regarded as radiation risk biomarkers, dicentric data in human lymphocytes irradiated by heavy ions up to iron were reproduced, and a radiobiological database allowing calculation of lymphocyte dicentric yields as a function of dose, ion type (1 ⩽Z⩽ 26) and energy was constructed. Following interface between BIANCA and the FLUKA Monte Carlo transport code, a feasibility study was performed to calculate the relative biological effectiveness (RBE) of different GCR spectrum components, for both dicentrics and cell death. Fe-ions, although representing only 10% of the total absorbed dose, were found to be responsible for about 35%-40% of the RBE-weighted dose. Interestingly, the RBE for dicentrics was higher than that for cell survival. More generally, this work shows that BIANCA can calculate RBE values for cell death and lymphocyte dicentrics not only for ion therapy, but also for space radiation.
Collapse
Affiliation(s)
| | - Alessia Embriaco
- INFN-Sezione di Pavia, via Bassi 6, I-27100 Pavia, Italy
- ENEA, Istituto Nazionale di Metrologia delle Radiazioni Ionizzanti, Roma, Italy
| | - Mario P Carante
- INFN-Sezione di Pavia, via Bassi 6, I-27100 Pavia, Italy
- Physics Department, University of Pavia, via Bassi 6, I-27100 Pavia, Italy
| | - Alfredo Ferrari
- University Hospital Heidelberg, Heidelberg, Germany
- Gangneung-Wonju National University, Wonju, Republic of Korea
- INFN-Sezione di Milano, via Celoria 16, I-20133 Milano, Italy
| | - Paola Sala
- INFN-Sezione di Milano, via Celoria 16, I-20133 Milano, Italy
| | | | - Francesca Ballarini
- INFN-Sezione di Pavia, via Bassi 6, I-27100 Pavia, Italy
- Physics Department, University of Pavia, via Bassi 6, I-27100 Pavia, Italy
| |
Collapse
|
14
|
Klekotka U, Wińska E, Zambrzycka-Szelewa E, Satuła D, Kalska-Szostko B. Magnetic Nanoparticles as Effective Heavy Ion Adsorbers in Natural Samples. Sensors (Basel) 2022; 22:3297. [PMID: 35590985 PMCID: PMC9099534 DOI: 10.3390/s22093297] [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] [Figures] [Subscribe] [Scholar Register] [Received: 01/21/2022] [Revised: 03/22/2022] [Accepted: 04/08/2022] [Indexed: 06/15/2023]
Abstract
This paper refers to research based on tests completed on the adsorption of heavy metal ions (Pb2+, Cu2+, Cd2+) from selected natural liquid samples such as apple, tomato, and potato juices using surface-functionalized Mn ferrite nanoparticles (Mn0.2Fe2.8O4). To determine the most efficient adsorption conditions of these heavy metals, the nanoparticles' surfaces were modified with five different ligands (phthalic anhydride, succinic anhydride, acetic anhydride, 3-phosphonopropionic acid, and 16-phosphonohexadecanoic acid). To evaluate the success of the adsorption process, the resultant liquid samples were examined for the amount of residuals using the flame atomic absorption spectroscopy method. The Mn ferrite particles selected for these tests were first characterized physicochemically by the following methods: transmission electron microscopy, scanning electron microscopy, X-ray diffraction, IR spectroscopy, Mössbauer spectroscopy.
Collapse
Affiliation(s)
- Urszula Klekotka
- Faculty of Chemistry, University of Bialystok, Ciolkowskiego 1K, 15-245 Bialystok, Poland; (U.K.); (E.W.); (E.Z.-S.)
| | - Ewelina Wińska
- Faculty of Chemistry, University of Bialystok, Ciolkowskiego 1K, 15-245 Bialystok, Poland; (U.K.); (E.W.); (E.Z.-S.)
| | - Elżbieta Zambrzycka-Szelewa
- Faculty of Chemistry, University of Bialystok, Ciolkowskiego 1K, 15-245 Bialystok, Poland; (U.K.); (E.W.); (E.Z.-S.)
| | - Dariusz Satuła
- Faculty of Physics, University of Bialystok, Ciolkowskiego 1L, 15-245 Bialystok, Poland;
| | - Beata Kalska-Szostko
- Faculty of Chemistry, University of Bialystok, Ciolkowskiego 1K, 15-245 Bialystok, Poland; (U.K.); (E.W.); (E.Z.-S.)
| |
Collapse
|
15
|
Boukhellout A, Ounoughi N, Kharfi F. MONTE-CARLO SIMULATION USING PHITS OF SECONDARY NEUTRONS PRODUCED IN-PATIENT DURING 16O ION THERAPY. Radiat Prot Dosimetry 2022; 198:31-36. [PMID: 35037066 DOI: 10.1093/rpd/ncab188] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/25/2021] [Revised: 12/15/2021] [Accepted: 12/20/2021] [Indexed: 06/14/2023]
Abstract
In hadrontherapy, oxygen ions 16O can be currently considered as an alternative to carbon ions 12C designed specifically for the treatment of deep and radioresistant tumors. Secondary particles, particularly neutrons constitute a serious problem of undesirable additional irradiation to surrounding healthy tissue. The objective of this study is to evaluate, by Monte-Carlo simulation [code Particle and Heavy Ion Transport code System (PHITS)], the contribution in terms of dose of secondary neutrons produced during interaction 16O ion of 300 MeV u-1 in a soft tissue phantom. The dose of 16O ion, secondary particles and neutrons is evaluated, as well as the particle fluence and energy spectra of neutrons. The contribution to the total dose of secondary neutrons in a soft tissue phantom represents 0.1%. This dose, although apparently insignificant, is essential to conduct even more in-depth studies to understand the long-term effects of these secondary neutrons on the patient's body especially in pediatric case.
Collapse
Affiliation(s)
- A Boukhellout
- Radiation Physics and Applications Laboratory, Mohammed Seddik Benyahia University, BP 98, Ouled, Aissa Jijel 18000, Algeria
| | - N Ounoughi
- Radiation Physics and Applications Laboratory, Mohammed Seddik Benyahia University, BP 98, Ouled, Aissa Jijel 18000, Algeria
| | - F Kharfi
- Laboratory of Dosing, Analysis and Characterization in High Resolution (DAC), Ferhat Abbas, Setif1 University, Setif 19000, Algeria
| |
Collapse
|
16
|
Naito M, Kitamura H, Koike M, Kusano H, Kusumoto T, Uchihori Y, Endo T, Hagiwara Y, Kiyono N, Kodama H, Matsuo S, Mikoshiba R, Takami Y, Yamanaka M, Akiyama H, Nishimura W, Kodaira S. Applicability of composite materials for space radiation shielding of spacecraft. Life Sci Space Res (Amst) 2021; 31:71-79. [PMID: 34689952 DOI: 10.1016/j.lssr.2021.08.004] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/19/2021] [Revised: 08/17/2021] [Accepted: 08/18/2021] [Indexed: 06/13/2023]
Abstract
Energetic ion beam experiments with major space radiation elements, 1H, 4He, 16O, 28Si and 56Fe, have been conducted to investigate the radiation shielding properties of composite materials. These materials are expected to be used for parts and fixtures of space vehicles due to both their mechanical strength and their space radiation shielding capabilities. Low Z materials containing hydrogen are effective for shielding protons and heavy ions due to their high stopping power and large fragmentation cross section per unit mass. The stopping power of the composite materials used in this work is intermediate between that of aluminum and polyethylene, which are typical structural and shielding materials used in space. The total charge-changing cross sections per unit mass, σUM, of the composite materials are 1.3-1.8 times larger than that of aluminum. By replacing conventional aluminum used for spacecraft with commercially available composite (carbon fiber / polyether ether ketone), it is expected that the shielding effect is increased by ∼17%. The utilization of composite materials will help mitigate the space radiation hazard on future deep space missions.
Collapse
Affiliation(s)
- Masayuki Naito
- Radiation Measurement Research Group, National Institute of Radiological Sciences, National Institutes for Quantum and Radiological Science and Technology, Chiba 263-8555, Japan
| | - Hisashi Kitamura
- Radiation Measurement Research Group, National Institute of Radiological Sciences, National Institutes for Quantum and Radiological Science and Technology, Chiba 263-8555, Japan
| | - Masamune Koike
- Radiation Measurement Research Group, National Institute of Radiological Sciences, National Institutes for Quantum and Radiological Science and Technology, Chiba 263-8555, Japan
| | - Hiroki Kusano
- Radiation Measurement Research Group, National Institute of Radiological Sciences, National Institutes for Quantum and Radiological Science and Technology, Chiba 263-8555, Japan
| | - Tamon Kusumoto
- Radiation Measurement Research Group, National Institute of Radiological Sciences, National Institutes for Quantum and Radiological Science and Technology, Chiba 263-8555, Japan
| | - Yukio Uchihori
- Radiation Measurement Research Group, National Institute of Radiological Sciences, National Institutes for Quantum and Radiological Science and Technology, Chiba 263-8555, Japan
| | - Toshiaki Endo
- Space Systems Division, Integrated Defense & Space Systems, Mitsubishi Heavy Industries, Ltd., Aichi 455-8515, Japan
| | - Yusuke Hagiwara
- Space Systems Division, Integrated Defense & Space Systems, Mitsubishi Heavy Industries, Ltd., Aichi 455-8515, Japan
| | - Naoki Kiyono
- Space Systems Division, Integrated Defense & Space Systems, Mitsubishi Heavy Industries, Ltd., Aichi 455-8515, Japan
| | - Hiroaki Kodama
- Space Systems Division, Integrated Defense & Space Systems, Mitsubishi Heavy Industries, Ltd., Aichi 455-8515, Japan
| | - Shinobu Matsuo
- Space Systems Division, Integrated Defense & Space Systems, Mitsubishi Heavy Industries, Ltd., Aichi 455-8515, Japan
| | - Ryo Mikoshiba
- Space Systems Division, Integrated Defense & Space Systems, Mitsubishi Heavy Industries, Ltd., Aichi 455-8515, Japan
| | - Yasuhiro Takami
- Space Systems Division, Integrated Defense & Space Systems, Mitsubishi Heavy Industries, Ltd., Aichi 455-8515, Japan
| | - Masahiro Yamanaka
- Space Systems Division, Integrated Defense & Space Systems, Mitsubishi Heavy Industries, Ltd., Aichi 455-8515, Japan
| | - Hiromichi Akiyama
- Manufacturing Technology Research Department, Research & Innovation Center, Mitsubishi Heavy Industries, Ltd., Aichi 455-8515, Japan
| | - Wataru Nishimura
- Manufacturing Technology Research Department, Research & Innovation Center, Mitsubishi Heavy Industries, Ltd., Aichi 455-8515, Japan
| | - Satoshi Kodaira
- Radiation Measurement Research Group, National Institute of Radiological Sciences, National Institutes for Quantum and Radiological Science and Technology, Chiba 263-8555, Japan.
| |
Collapse
|
17
|
Tsubouchi T, Hamatani N, Takashina M, Wakisaka Y, Ogawa A, Yagi M, Terasawa A, Shimazaki K, Chatani M, Mizoe J, Kanai T. Carbon ion radiotherapy using fiducial markers for prostate cancer in Osaka HIMAK: Treatment planning. J Appl Clin Med Phys 2021; 22:242-251. [PMID: 34339590 PMCID: PMC8425940 DOI: 10.1002/acm2.13376] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Revised: 07/06/2021] [Accepted: 07/18/2021] [Indexed: 11/18/2022] Open
Abstract
PURPOSE Carbon ion radiotherapy for prostate cancer was performed using two fine needle Gold Anchor (GA) markers for patient position verification in Osaka Heavy Ion Medical Accelerator in Kansai (Osaka HIMAK). The present study examined treatment plans for prostate cases using beam-specific planning target volume (bsPTV) based on the effect of the markers on dose distribution and analysis of target movements. MATERIALS AND METHODS Gafchromic EBT3 film was used to measure dose perturbations caused by markers. First, the relationships between the irradiated film density and absolute dose with different linear energy transfer distributions within a spread-out Bragg peak (SOBP) were confirmed. Then, to derive the effect of markers, two types of markers, including GA, were placed at the proximal, center, and distal depths within the same SOBP, and dose distributions behind the markers were measured using the films. The amount of internal motion of prostate was derived from irradiation results and analyzed to determine the margins of the bsPTV. RESULTS The linearity of the film densities against absolute doses was constant within the SOBP and the amount of dose perturbations caused by the markers was quantitatively estimated from the film densities. The dose perturbation close behind the markers was smallest (<10% among depths within the SOBP regardless of types of markers) and increased with depth. The effect of two types of GAs on dose distributions was small and could be ignored in the treatment planning. Based on the analysis results of internal motions of prostate, required margins of the bsPTV were found to be 8, 7, and 7 mm in left-right (LR), anterior-posterior (AP), and superior-inferior (SI) directions, respectively. CONCLUSION We evaluated the dose reductions caused by markers and determined the margins of the bsPTV, which was applied to the treatment using fiducial markers, using the analysis results of prostate movements.
Collapse
Affiliation(s)
| | | | | | | | | | - Masashi Yagi
- Department of Carbon Ion RadiotherapyOsaka University Graduate School of MedicineSuita CityOsakaJapan
| | | | | | | | | | | |
Collapse
|
18
|
Jia R, Chen YX, Du YR, Hu BR. Meso-scale Discovery Assay Detects the Changes of Plasma Cytokine Levels in Mice after Low or High LET Ionizing Irradiation. Biomed Environ Sci 2021; 34:540-551. [PMID: 34353417 DOI: 10.3967/bes2021.074] [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] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Accepted: 10/13/2020] [Indexed: 06/13/2023]
Abstract
OBJECTIVE To obtain precise data on the changes in the levels of 29 cytokines in mice after high or low linear energy transfer (LET) irradiation and to develop an accurate model of radiation exposure based on the cytokine levels after irradiation. METHODS Plasma samples harvested from mice at different time points after carbon-ion or X-ray irradiation were analyzed using meso-scale discovery (MSD), a high-throughput and sensitive electrochemiluminescence measurement technique. Dose estimation equations were set up using multiple linear regression analysis. RESULTS The relative levels of IL-6 at 1 h, IL-5 and IL-6 at 24 h, and IL-5, IL-6 and IL-15 at 7 d after irradiation with two intensities increased dose-dependently. The minimum measured levels of IL-5, IL-6 and IL-15 were up to 4.0076 pg/mL, 16.4538 pg/mL and 0.4150 pg/mL, respectively. In addition, dose estimation models were established and verified. CONCLUSIONS The MSD assay can provide more accurate data regarding the changes in the levels of the cytokines IL-5, IL-6 and IL-15. These cytokines could meet the essential criteria for radiosensitive biomarkers and can be used as radiation indicators. Our prediction models can conveniently and accurately estimate the exposure dose in irradiated organism.
Collapse
Affiliation(s)
- Rong Jia
- Key Laboratory of Space Radiobiology of Gansu Province & CAS Key Laboratory of Heavy Ion Radiation Biology and Medicine, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, Gansu, China;School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing 100039, China
| | - Ya Xiong Chen
- Key Laboratory of Space Radiobiology of Gansu Province & CAS Key Laboratory of Heavy Ion Radiation Biology and Medicine, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, Gansu, China
| | - Ya Rong Du
- Key Laboratory of Space Radiobiology of Gansu Province & CAS Key Laboratory of Heavy Ion Radiation Biology and Medicine, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, Gansu, China
| | - Bu Rong Hu
- Key Laboratory of Space Radiobiology of Gansu Province & CAS Key Laboratory of Heavy Ion Radiation Biology and Medicine, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, Gansu, China;School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing 100039, China;Department of Radiation Medicine, School of Public Health and Management, Wenzhou Medical University, Wenzhou 325035, Zhejiang, China
| |
Collapse
|
19
|
Lai Y, Jia X, Chi Y. Recent Developments on gMicroMC: Transport Simulations of Proton and Heavy Ions and Concurrent Transport of Radicals and DNA. Int J Mol Sci 2021; 22:ijms22126615. [PMID: 34205577 PMCID: PMC8233829 DOI: 10.3390/ijms22126615] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2021] [Revised: 06/14/2021] [Accepted: 06/16/2021] [Indexed: 11/16/2022] Open
Abstract
Mechanistic Monte Carlo (MC) simulation of radiation interaction with water and DNA is important for the understanding of biological responses induced by ionizing radiation. In our previous work, we employed the Graphical Processing Unit (GPU)-based parallel computing technique to develop a novel, highly efficient, and open-source MC simulation tool, gMicroMC, for simulating electron-induced DNA damages. In this work, we reported two new developments in gMicroMC: the transport simulation of protons and heavy ions and the concurrent transport of radicals in the presence of DNA. We modeled these transports based on electromagnetic interactions between charged particles and water molecules and the chemical reactions between radicals and DNA molecules. Various physical properties, such as Linear Energy Transfer (LET) and particle range, from our simulation agreed with data published by NIST or simulation results from other CPU-based MC packages. The simulation results of DNA damage under the concurrent transport of radicals and DNA agreed with those from nBio-Topas simulation in a comprehensive testing case. GPU parallel computing enabled high computational efficiency. It took 41 s to simultaneously transport 100 protons with an initial kinetic energy of 10 MeV in water and 470 s to transport 105 radicals up to 1 µs in the presence of DNA.
Collapse
Affiliation(s)
- Youfang Lai
- Department of Physics, University of Texas at Arlington, Arlington, TX 76019, USA;
- Innovative Technology of Radiotherapy Computation and Hardware (iTORCH) Laboratory, Department of Radiation Oncology, University of Texas Southwestern Medical Center, Dallas, TX 75287, USA
| | - Xun Jia
- Innovative Technology of Radiotherapy Computation and Hardware (iTORCH) Laboratory, Department of Radiation Oncology, University of Texas Southwestern Medical Center, Dallas, TX 75287, USA
- Correspondence: (X.J.); (Y.C.)
| | - Yujie Chi
- Department of Physics, University of Texas at Arlington, Arlington, TX 76019, USA;
- Correspondence: (X.J.); (Y.C.)
| |
Collapse
|
20
|
Pak S, Cucinotta FA. Comparison between PHITS and GEANT4 Simulations of the Heavy Ion Beams at the BEVALAC at LBNL and the Booster Accelerator at BNL. Life Sci Space Res (Amst) 2021; 29:38-45. [PMID: 33888286 PMCID: PMC8071601 DOI: 10.1016/j.lssr.2021.03.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2021] [Revised: 03/10/2021] [Accepted: 03/13/2021] [Indexed: 06/12/2023]
Abstract
Heavy charged particles have been discussed for clinical use due to their superior dose-depth distribution compared to conventional radiation such as X-rays. In addition, high-charge and energy (HZE) ions in galactic cosmic rays (GCR) present important health risks for crewed space missions to the Earth's moon or Mars. Experiments at heavy ion accelerators are used in radiobiology studies; however, numerical simulations of track segment or Bragg peak irradiations are complicated by the details of the beam-line and dosimetry systems. The goal of the present work is in support of biophysics modeling of historical radiobiology data at Lawrence Berkeley National Laboratory (LBNL) and more recent results from the Brookhaven National Lab (BNL) facility (NASA Space Radiation Lab (NSRL)). In this work, the Spread-Out Bragg Peak (SOBP) of 4He, 12C, and 20Ne particles, and a Bragg curve of 56Fe ion have been simulated numerically in the geometries of LBNL and BNL using the Monte-Carlo based PHITS and GEANT4 simulation toolkits. The dose contributions of primary particles and secondary particles, including neutrons and photons, in the target material are computed and discussed as well. Comparisons suggest more contributions of secondaries in GEANT4 simulations compared to PHITS simulations, and less statistical fluctuation and better prediction of neutrons in PHITS simulations. Neutrons and gamma-rays are estimated to make minor contributions to absorbed doses for these beams.
Collapse
Affiliation(s)
- Sungmin Pak
- Department of Health Physics and Diagnostic Sciences, School of Integrated Health Sciences, University of Nevada, Las Vegas, NV 89154, USA
| | - Francis A Cucinotta
- Department of Health Physics and Diagnostic Sciences, School of Integrated Health Sciences, University of Nevada, Las Vegas, NV 89154, USA.
| |
Collapse
|
21
|
Fan Y, Ding XT, Wang LJ, Jiang EY, Van PN, Li FL. Rapid Sorting of Fucoxanthin-Producing Phaeodactylum tricornutum Mutants by Flow Cytometry. Mar Drugs 2021; 19:md19040228. [PMID: 33920502 PMCID: PMC8072577 DOI: 10.3390/md19040228] [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] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2021] [Revised: 04/15/2021] [Accepted: 04/15/2021] [Indexed: 12/21/2022] Open
Abstract
Fucoxanthin, which is widely found in seaweeds and diatoms, has many benefits to human health, such as anti-diabetes, anti-obesity, and anti-inflammatory physiological activities. However, the low content of fucoxanthin in brown algae and diatoms limits the commercialization of this product. In this study, we introduced an excitation light at 488 nm to analyze the emitted fluorescence of Phaeodactylum tricornutum, a diatom model organism rich in fucoxanthin. We observed a unique spectrum peak at 710 nm and found a linear correlation between fucoxanthin content and the mean fluorescence intensity. We subsequently used flow cytometry to screen high-fucoxanthin-content mutants created by heavy ion irradiation. After 20 days of cultivation, the fucoxanthin content of sorted cells was 25.5% higher than in the wild type. This method provides an efficient, rapid, and high-throughput approach to screen fucoxanthin-overproducing mutants.
Collapse
Affiliation(s)
- Yong Fan
- Key Laboratory of Biofuels, Shandong Provincial Key Laboratory of Synthetic Biology, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao 266101, China; (Y.F.); (X.-T.D.); (L.-J.W.); (E.-Y.J.); (P.N.V.)
- University of Chinese Academy of Sciences, Beijing 100049, China
- Shandong Energy Institute, Qingdao 266101, China
- Qingdao New Energy Shandong Laboratory, Qingdao 266101, China
| | - Xiao-Ting Ding
- Key Laboratory of Biofuels, Shandong Provincial Key Laboratory of Synthetic Biology, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao 266101, China; (Y.F.); (X.-T.D.); (L.-J.W.); (E.-Y.J.); (P.N.V.)
- Shandong Energy Institute, Qingdao 266101, China
- Qingdao New Energy Shandong Laboratory, Qingdao 266101, China
| | - Li-Juan Wang
- Key Laboratory of Biofuels, Shandong Provincial Key Laboratory of Synthetic Biology, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao 266101, China; (Y.F.); (X.-T.D.); (L.-J.W.); (E.-Y.J.); (P.N.V.)
| | - Er-Ying Jiang
- Key Laboratory of Biofuels, Shandong Provincial Key Laboratory of Synthetic Biology, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao 266101, China; (Y.F.); (X.-T.D.); (L.-J.W.); (E.-Y.J.); (P.N.V.)
- Shandong Energy Institute, Qingdao 266101, China
- Qingdao New Energy Shandong Laboratory, Qingdao 266101, China
| | - Phung Nghi Van
- Key Laboratory of Biofuels, Shandong Provincial Key Laboratory of Synthetic Biology, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao 266101, China; (Y.F.); (X.-T.D.); (L.-J.W.); (E.-Y.J.); (P.N.V.)
- Shandong Energy Institute, Qingdao 266101, China
- Qingdao New Energy Shandong Laboratory, Qingdao 266101, China
| | - Fu-Li Li
- Key Laboratory of Biofuels, Shandong Provincial Key Laboratory of Synthetic Biology, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao 266101, China; (Y.F.); (X.-T.D.); (L.-J.W.); (E.-Y.J.); (P.N.V.)
- Shandong Energy Institute, Qingdao 266101, China
- Qingdao New Energy Shandong Laboratory, Qingdao 266101, China
- Correspondence: ; Tel.: +86-532-8066-2655
| |
Collapse
|
22
|
Xu R, Zhang K, Liang J, Gao F, Li J, Guan F. Hyaluronic acid/polyethyleneimine nanoparticles loaded with copper ion and disulfiram for esophageal cancer. Carbohydr Polym 2021; 261:117846. [PMID: 33766342 DOI: 10.1016/j.carbpol.2021.117846] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2020] [Revised: 02/04/2021] [Accepted: 02/18/2021] [Indexed: 12/13/2022]
Abstract
In the clinical treatment of cancer, improving the effectiveness and targeting of drugs has always been a bottleneck problem that needs to be solved. In this contribution, inspired by the targeted inhibition on cancer from combination application of disulfiram and divalent copper ion (Cu2+), we optimized the concentration of disulfiram and Cu2+ ion for inhibiting esophageal cancer cells, and loaded them in hyaluronic acid (HA)/polyethyleneimine (PEI) nanoparticles with specific scales, in order to improve the effectiveness and targeting of drugs. The in vitro cell experiments demonstrated that more drug loaded HA/PEI nanoparticles accumulated to the esophageal squamous cell carcinoma (Eca109) and promoted higher apoptosis ratio of Eca109. Both in vitro and in vivo biological assessment verified that the disulfiram/Cu2+ loaded HA/PEI nanoparticles promoted the apoptosis of cancer cells and inhibited the tumor proliferation, but had no toxicity on other normal organs.
Collapse
Affiliation(s)
- Ru Xu
- School of Life Science, Zhengzhou University, 100 Science Road, Zhengzhou, 450001, PR China
| | - Kun Zhang
- School of Life Science, Zhengzhou University, 100 Science Road, Zhengzhou, 450001, PR China
| | - Jiaheng Liang
- School of Life Science, Zhengzhou University, 100 Science Road, Zhengzhou, 450001, PR China
| | - Feng Gao
- School of Life Science, Zhengzhou University, 100 Science Road, Zhengzhou, 450001, PR China
| | - Jingan Li
- School of Materials Science and Engineering & Henan Key Laboratory of Advanced Magnesium Alloy, Zhengzhou University, 100 Science Road, Zhengzhou, 450001, PR China.
| | - Fangxia Guan
- School of Life Science, Zhengzhou University, 100 Science Road, Zhengzhou, 450001, PR China.
| |
Collapse
|
23
|
Tashiro M. [Introduction of Gunma University Heavy Ion Medical Center]. Igaku Butsuri 2021; 41:161-165. [PMID: 34744133 DOI: 10.11323/jjmp.41.3_161] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
|
24
|
Furuta T, Sato T. [Medical application of particle and heavy ion transport code system PHITS]. Igaku Butsuri 2021; 41:194. [PMID: 34955502 DOI: 10.11323/jjmp.41.4_194] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
This is a review on medical application of particle and heavy ion transport code system PHITS by JSRT and JSMP (https://www.jsmp.org/en).
Collapse
|
25
|
Wang X, Du N, Wang L. [Analysis of Key Points of Radiation Sources in Proton and Carbon Ion Radiotherapy Facilities in Shanghai]. Zhongguo Yi Liao Qi Xie Za Zhi 2020; 44:476-480. [PMID: 33314852 DOI: 10.3969/j.issn.1671-7104.2020.06.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Compared with conventional high energy X-ray radiotherapy, proton/carbon ion has obvious advantages because of its Bragg peak dose distribution. However, proton heavy ion facility has complex structure, high energy and various radiation types due to various nuclear reaction processes, the radiation protection safety brought by the operation of facilities has gradually attracted attention. Taking the proton/carbon ion radiotherapy facility of Shanghai Proton and Heavy Ion Center as an example, the author mainly analyzed the operation principle of proton/carbon ion treatment facility, the basis of radiation protection, analysis of key radiation source points, etc., so as to provide theoretical support and experience for radiation protection.
Collapse
Affiliation(s)
- Xiaowa Wang
- Shanghai Proton and Heavy Ion Center, Shanghai, 201321
- Shanghai Engineering Research Center of Proton and Heavy Ion Radiation Therapy, Shanghai, 201321
| | - Ning Du
- Shanghai Proton and Heavy Ion Center, Shanghai, 201321
- Shanghai Engineering Research Center of Proton and Heavy Ion Radiation Therapy, Shanghai, 201321
| | - Lan Wang
- Shanghai Proton and Heavy Ion Center, Shanghai, 201321
- Shanghai Engineering Research Center of Proton and Heavy Ion Radiation Therapy, Shanghai, 201321
| |
Collapse
|
26
|
Le Sech C, Hirayama R. Dual aspect of radioenhancers and free radical scavengers. Free Radic Biol Med 2020; 159:103-106. [PMID: 32745762 DOI: 10.1016/j.freeradbiomed.2020.06.019] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/19/2020] [Accepted: 06/05/2020] [Indexed: 10/23/2022]
Abstract
Combining an external beam of ionizing particles with agents to augment the dose effects of cell damages for therapeutic purpose is an important goal of radiotherapy. This last decade intensive works have focused on metal compounds or metal nanoparticles as radiosensitizers to increase the oxidative damages under irradiation. In principle the nanoparticles can be coated with a functionalized shell, to achieve a specific targeting of the tissues, making such approach attractive. The functionalized coating is made of polymers. These molecules are able to scavenge the free radicals, thus, the coating can decrease the overall efficacy of the radiation. The purpose of the present model is to analyse the role of free hydroxyl radicals in the dual behaviour of the added agent. Consideration of the efficiency of the added agents versus the Linear Energy Transfer - LET - of the ionizing particles is made. It is shown that an efficient agent combined with a low-LET particle beams might become less efficient when high-LET particles like heavy-ions are used. These general considerations should be useful to optimize the design of the nanoparticles to be combined with the different kind of ionizing particles.
Collapse
Affiliation(s)
- Claude Le Sech
- Institut des Sciences Moléculaires D'Orsay (ISMO), CNRS, Bâtiment 520, Université Paris-Saclay, F-91405, Orsay, France.
| | - Ryoichi Hirayama
- National Institute of Radiological Sciences (NIRS), National Institute for Quantum and Radiological Science and Technology (QST), 4-9-1, Anagawa, Inage, Chiba, 263-8555, Japan.
| |
Collapse
|
27
|
Li H, Zhang H, Huang G, Dou Z, Xie Y, Si J, Di C. Heavy ion radiation-induced DNA damage mediates apoptosis via the Rpl27a-Rpl5-MDM2-p53/E2F1 signaling pathway in mouse spermatogonia. Ecotoxicol Environ Saf 2020; 201:110831. [PMID: 32535367 DOI: 10.1016/j.ecoenv.2020.110831] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/09/2020] [Revised: 05/21/2020] [Accepted: 05/28/2020] [Indexed: 06/11/2023]
Abstract
The risk of exposure to ionizing radiation (IR) environments has increased with the development of nuclear technology. IR exposure induces excessive apoptosis of the spermatogonia, which leads to male infertility. Spermatogonia apoptosis may be involved in ribosomal stress triggered by DNA damage following exposure to IR because ribosomal proteins (RPs) directly interact with mouse double minute 2 homolog (MDM2) to induce apoptosis. This study aimed to use comparative proteomics and transcriptomics approach to screen the differential RPs and ribosomal mRNAs in mouse testes following high linear energy transfer (LET) carbon ion radiation (CIR). The expression of ribosomal large subunit protein 27a (Rpl27a) decreased at both protein and mRNA levels in the spermatogonia in vivo. After 6 h of CIR, the immunofluorescence signal of 8-oxo-dG and phosphorylated ataxia-telangiectasia-mutated protein (ATM)/histone H2Ax increased, but that of Rpl27a decreased in the spermatogonia of p53 wild-type and knockout mouse testes. Moreover, the nucleolin was scattered throughout the nucleoplasm after CIR. These results suggested that CIR-induced DNA damage might trigger ribosomal stress, and the reduction in the expression of Rpl27a was associated with DNA damage in the spermatogonia. Similarly, in vitro, the immunofluorescence signal of 8-oxo-dG increased in the GC-1 cells after CIR. Moreover, the expression of Rpl27a was regulated by DNA damage because the co-transfection of ATM and Rpl27a or inhibition of ATM-treated CIR could restore the expression of Rpl27a. Furthermore, the reduction in the expression of Rpl27a led to weakened binding of E2F transcription factor 1 (E2F1) and p53 to MDM2, causing p53 activation and E2F1 degradation in p53 wild-type and knockdown GC-1 cells. This study proposed that heavy ion radiation-induced DNA damage mediated spermatogonia apoptosis via the Rpl27a-Rpl5-MDM2-p53/E2F1 signaling pathway. The results provided the underlying molecular mechanisms of spermatogonia apoptosis following exposure to high LET radiation.
Collapse
Affiliation(s)
- Hongyan Li
- Department of Medical Physics, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, 730000, China; Key Laboratory of Heavy Ion Radiation Biology and Medicine of Chinese Academy of Sciences, Lanzhou, 730000, China; Key Laboratory of Basic Research on Heavy Ion Radiation Application in Medicine, Lanzhou, 730000, China; School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing, 100039, China
| | - Hong Zhang
- Department of Medical Physics, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, 730000, China; Key Laboratory of Heavy Ion Radiation Biology and Medicine of Chinese Academy of Sciences, Lanzhou, 730000, China; Key Laboratory of Basic Research on Heavy Ion Radiation Application in Medicine, Lanzhou, 730000, China; School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing, 100039, China.
| | - Guomin Huang
- Department of Medical Physics, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, 730000, China; Key Laboratory of Heavy Ion Radiation Biology and Medicine of Chinese Academy of Sciences, Lanzhou, 730000, China; Key Laboratory of Basic Research on Heavy Ion Radiation Application in Medicine, Lanzhou, 730000, China; School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing, 100039, China
| | - Zhihui Dou
- Department of Medical Physics, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, 730000, China; Key Laboratory of Heavy Ion Radiation Biology and Medicine of Chinese Academy of Sciences, Lanzhou, 730000, China; Key Laboratory of Basic Research on Heavy Ion Radiation Application in Medicine, Lanzhou, 730000, China; School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing, 100039, China
| | - Yi Xie
- Department of Medical Physics, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, 730000, China; Key Laboratory of Heavy Ion Radiation Biology and Medicine of Chinese Academy of Sciences, Lanzhou, 730000, China; Key Laboratory of Basic Research on Heavy Ion Radiation Application in Medicine, Lanzhou, 730000, China; School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing, 100039, China
| | - Jing Si
- Department of Medical Physics, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, 730000, China; Key Laboratory of Heavy Ion Radiation Biology and Medicine of Chinese Academy of Sciences, Lanzhou, 730000, China; Key Laboratory of Basic Research on Heavy Ion Radiation Application in Medicine, Lanzhou, 730000, China; School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing, 100039, China
| | - Cuixia Di
- Department of Medical Physics, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, 730000, China; Key Laboratory of Heavy Ion Radiation Biology and Medicine of Chinese Academy of Sciences, Lanzhou, 730000, China; Key Laboratory of Basic Research on Heavy Ion Radiation Application in Medicine, Lanzhou, 730000, China; School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing, 100039, China
| |
Collapse
|
28
|
Endo S, Matsutani Y, Kajimoto T, Tanaka K, Suzuki M. Internal exposure rate conversion coefficients and absorbed fractions of mouse for 137Cs, 134Cs and 90Sr contamination in body. J Radiat Res 2020; 61:535-545. [PMID: 32500146 PMCID: PMC7336567 DOI: 10.1093/jrr/rraa030] [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] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/07/2020] [Revised: 02/18/2020] [Indexed: 06/11/2023]
Abstract
The aim of this study was to determine parameters for estimating the internal exposure of all organs in mouse experiments from the radioactivity concentration in organs. The estimation of internal exposure rate conversion coefficients and absorbed fractions for 137Cs, 134Cs and 90Sr by the Particle and Heavy Ion Transport code System (PHITS) with a voxel-based mouse phantom is presented. The geometry of the voxel phantom is constructed from computer tomography images of a mouse 9 cm in length weighing 23.9 g. The voxel-based mouse phantom has the following organs: brain, skull, heart, lungs, liver, stomach, spleen, kidneys, bladder, testis and tissue (tissue and other organs). Gamma- and beta-rays from 137Cs, 134Cs and 90Sr sources in each source organ are generated and scored for every target organ. The internal exposure rate conversion coefficients and absorbed fractions are calculated from deposition energies in each target organ from each source organ and are used to generate an internal exposure rate conversion coefficient matrix and an absorbed fraction matrix. The absorbed fractions of beta-rays in the source organs are roughly 0.5-0.8 for 137Cs and 134Cs, and the absorbed fractions of gamma-rays are <0.04 for 137Cs and <0.03 for 134Cs. The internal exposure rate conversion coefficient matrix is defined using the absorbed fractions. The calculated internal exposure rate coefficient matrix is tested under a uniform radioactivity concentration of 1 Bq/kg for 137Cs, 134Cs and 90Sr. The estimated internal exposure rates in the mouse whole body for 137Cs, 134Cs and 90Sr are 3.28 × 10-3, 2.55 × 10-3 and 1.20 × 10-2 μGy/d, respectively. These values are very similar to those for an ellipsoid frog (31.4 g) and an ellipsoid crab egg mass (12.6 g) reported in ICRP Publication 108.
Collapse
Affiliation(s)
- Satoru Endo
- Quantum Energy Applications, Graduate School of Advanced Science and Engineering, Hiroshima University, 1-4-1 Kagamiyama, Higashi-Hiroshima 739-8527, Japan
| | - Yuki Matsutani
- Quantum Energy Applications, Graduate School of Advanced Science and Engineering, Hiroshima University, 1-4-1 Kagamiyama, Higashi-Hiroshima 739-8527, Japan
| | - Tsuyoshi Kajimoto
- Quantum Energy Applications, Graduate School of Advanced Science and Engineering, Hiroshima University, 1-4-1 Kagamiyama, Higashi-Hiroshima 739-8527, Japan
| | - Kenichi Tanaka
- Quantum Energy Applications, Graduate School of Advanced Science and Engineering, Hiroshima University, 1-4-1 Kagamiyama, Higashi-Hiroshima 739-8527, Japan
| | - Masatoshi Suzuki
- International Research Institute of Disaster Science (IRIDeS), Tohoku University, Aramaki Aza-Aoba 468-1, Aoba-ku, Sendai 980-8572, Japan
| |
Collapse
|
29
|
Özpolat ÖF, Alım B, Şakar E, Büyükyıldız M, Kurudirek M. Phy-X/ZeXTRa: a software for robust calculation of effective atomic numbers for photon, electron, proton, alpha particle, and carbon ion interactions. Radiat Environ Biophys 2020; 59:321-329. [PMID: 31960126 DOI: 10.1007/s00411-019-00829-7] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [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: 08/13/2019] [Accepted: 12/31/2019] [Indexed: 06/10/2023]
Abstract
The purpose of the present work is robust calculation of effective atomic numbers ([Formula: see text]s) for photon, electron, proton, alpha particle and carbon ion interactions through the newly developed software, Phy-X/ZeXTRa (Zeff of materials for X-Type Radiation attenuation). A pool of total mass attenuation and energy absorption coefficients (for photons) and total mass stopping powers (for charged particles) for elements was constructed first. Then, a matrix of interaction cross sections for elements Z = 1-92 was constructed. Finally, effective atomic numbers were calculated for any material by interpolating adjacent cross sections through a linear logarithmic interpolation formula. The results for [Formula: see text] for photon interaction were compared with those calculated through Mayneord's formula, which suggests a single-valued [Formula: see text] for any material for low-energy photons for which photoelectric absorption is the dominant interaction process. The single-valued [Formula: see text] was found to agree well with that obtained by other methods, in the low-energy region. In addition, [Formula: see text] values of various materials of biological interest were compared with those obtained experimentally at 59.54 keV. In general, the agreement between values calculated with Phy-X/ZeXTRa and Auto-Zeff and those measured were satisfactory. A comparison of [Formula: see text] values for photon energy absorption calculated with Phy-X/ZeXTRa and literature values for a nucleotide base, adenine, was made, and the relative difference (RD) in [Formula: see text] between Phy-X/ZeXTRa and literature values was found to be 2% < RD < 11%, at low photon energies (1-100 keV), while it was less than 1% at energies higher than 100 keV. Highest [Formula: see text] values were observed at low photon energies, where photoelectric absorption dominates photon interaction. For electrons, corresponding RD(%) values in [Formula: see text] were found to be in the range 0.4 ≤ RD(%) ≤ 1.7, while for heavy charged particle interactions it was 2.4 ≤ RD(%) ≤ 4.2 for total proton interaction and 0 ≤ RD(%) ≤ 8 for total alpha particle interaction. In view of the importance of [Formula: see text] for identifying and differentiating tissues in diagnostic imaging as well as for estimating accurate dose in radiotherapy and particle-beam therapy, Phy-X/ZeXTRa could be used for fast and accurate calculation of [Formula: see text] in a wide energy range for both photon and charged particle (electrons, protons, alpha particles and C ions) interactions.
Collapse
Affiliation(s)
- Ö F Özpolat
- Department of Physics, Faculty of Science, Atatürk University, 25240, Erzurum, Turkey
| | - B Alım
- Department of Electricity and Energy, Technical Scientific Vocational School, Bayburt University, 69000, Bayburt, Turkey
| | - E Şakar
- Department of Physics, Faculty of Science, Atatürk University, 25240, Erzurum, Turkey
| | - M Büyükyıldız
- Termal Vocational School, Yalova University, 77400, Yalova, Turkey
| | - M Kurudirek
- Department of Physics, Faculty of Science, Atatürk University, 25240, Erzurum, Turkey.
| |
Collapse
|
30
|
Sridharan DM, Chien LC, Cucinotta FA, Pluth JM. Comparison of signaling profiles in the low dose range following low and high LET radiation. Life Sci Space Res (Amst) 2020; 25:28-41. [PMID: 32414491 DOI: 10.1016/j.lssr.2020.02.002] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [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: 12/22/2019] [Revised: 02/10/2020] [Accepted: 02/13/2020] [Indexed: 06/11/2023]
Abstract
During space travel astronauts will be exposed to a very low, mixed field of radiation containing different high LET particles of varying energies, over an extended period. Thus, defining how human cells respond to these complex low dose exposures is important in ascertaining risk. In the current study, we have chosen to investigate how low doses of three different ion's at various energies uniquely change the kinetics of three different phospho-proteins. A normal hTERT immortalized fibroblast cell line, 82-6, was exposed to a range of lower doses (0.05-0.5 Gy) of radiation of different qualities and energies (Si 1000 MeV/u, Si 300 MeV/u, Si 173 MeV/u, Si 93 MeV/u, Fe 1000 MeV/u, Fe 600 MeV/u, Fe 300 MeV/u, Ti 300 MeV/u, Ti 326 MeV/u, Ti 386 MeV/u), covering a wide span of LET's. Exposed samples were analyzed for the average intensity of signal as a fold over the geometric mean level of the sham controls. Three phospho-proteins known to localize to DNA DSBs following radiation (γH2AX, pATF2, pSMC1) were studied. The kinetics of their response was quantified by flow cytometery at 2 and 24 h post exposure. These studies reveal unique kinetic patterns based on the ion, energy, fluence and time following exposure. In addition, γH2AX phosphorylation patterns are uniquely different from phospho-proteins known to be primarily phosphorylated by ATM. This latter finding suggests that the activating kinase(s), or the phosphatases deactivating these proteins, exhibit differences in their response to various radiation qualities and/ or doses of exposure. Further studies will be needed to better define what the differing kinetics for the kinases activated by the unique radiation qualities plays in the biological effectiveness of the particle.
Collapse
Affiliation(s)
- Deepa M Sridharan
- Lawrence Berkeley National Laboratory, Life Sciences Division, Berkeley, CA 94710, United States
| | - Lung-Chang Chien
- Department of Environmental and Occupational Health, University of Nevada, Las Vegas, NV, 89154, United States
| | - Francis A Cucinotta
- Health Physics and Diagnostic Sciences, University of Nevada, Las Vegas, NV 89154, United States
| | - Janice M Pluth
- Health Physics and Diagnostic Sciences, University of Nevada, Las Vegas, NV 89154, United States.
| |
Collapse
|
31
|
Li M, Huang Y, Yang Y, Wang H, Hu L, Zhong H, He Z. Heavy metal ions removed from imitating acid mine drainages with a thermoacidophilic archaea: Acidianus manzaensis YN25. Ecotoxicol Environ Saf 2020; 190:110084. [PMID: 31869713 DOI: 10.1016/j.ecoenv.2019.110084] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [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: 09/14/2019] [Revised: 12/08/2019] [Accepted: 12/11/2019] [Indexed: 06/10/2023]
Abstract
Metals in acid mine drainages (AMD) have posed a great threat to environment, and in situ economic environment-friendly remediation technologies need to be developed. Moreover, the effects of acidophiles on biosorption and migrating behaviors of metals in AMD have not been previously reported. In this study, the extremely thermoacidophilic Archaea, Acidianus manzaensis YN25 (A. manzaensis YN25) was used as a bio-adsorbent to adsorb metals (Cu2+, Ni2+, Cd2+ and Zn2+) from acidic solutions which were taken to imitate AMD. The values of their maximum biosorption capacities at both high (1 mM) and low (0.1 mM) metal concentrations followed the order: Cu2+ > Ni2+ > Cd2+ > Zn2+. With the elevations of temperature and pH value, the adsorption amounts of metals increased. The results also indicated that A. manzaensis YN25 had the highest adsorption affinity to Cu2+ in coexisting system of quaternary metals. Acid-base titration data revealed that carboxyl and phosphoryl groups provided adsorption sites for metals via deprotonation. Fourier transform infrared spectroscopy (FTIR) and X-ray photoelectron spectroscopy (XPS) further corroborated that amino played an important role in the biosorption process. The fitted Langmuir model illustrated monolayer adsorption occurring on cell surface. The possible adsorption mechanism of A. manzaensis YN25 mainly involved in electrostatic attraction and complexes formation. This study gives a profound insight into the biosorption behavior of heavy metals in acidic solution by thermoacidophilic Archaea and provides a probable novel strategy for in situ remediation of heavy metals pollution in AMD.
Collapse
Affiliation(s)
- Mengke Li
- School of Minerals Processing and Bioengineering, Key Laboratory of Biohydrometallurgy of Ministry of Education, Central South University, Changsha, 410083, China
| | - Yongji Huang
- School of Minerals Processing and Bioengineering, Key Laboratory of Biohydrometallurgy of Ministry of Education, Central South University, Changsha, 410083, China
| | - Yanping Yang
- School of Minerals Processing and Bioengineering, Key Laboratory of Biohydrometallurgy of Ministry of Education, Central South University, Changsha, 410083, China
| | - Haibei Wang
- Beijing General Research Institute of Mining & Metallurgy, Building 23, Zone 18 of ABP, No. 188, South 4th Ring Road West, Beijing, China
| | - Liang Hu
- School of Minerals Processing and Bioengineering, Key Laboratory of Biohydrometallurgy of Ministry of Education, Central South University, Changsha, 410083, China
| | - Hui Zhong
- School of Life Science, Central South University, Changsha, 410012, China.
| | - Zhiguo He
- School of Minerals Processing and Bioengineering, Key Laboratory of Biohydrometallurgy of Ministry of Education, Central South University, Changsha, 410083, China.
| |
Collapse
|
32
|
Endo M. [Construction of Heavy Ion Accelerator in Chiba (HIMAC) and Its Consequences-From Medical Physics Viewpoint: Part 2. Advancement of Broad Beam Irradiation and Development of a New Compact-sized Therapy Accelerator (1994-2010)]. Igaku Butsuri 2020; 40:97-105. [PMID: 32999256 DOI: 10.11323/jjmp.40.3_97] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
|
33
|
Endo M. [Construction of Heavy Ion Accelerator in Chiba (HIMAC) and Its Consequences-From Medical Physics Viewpoint: Part 1. Period until Treatment Start (1975-1994)]. Igaku Butsuri 2020; 40:61-67. [PMID: 32611944 DOI: 10.11323/jjmp.40.2_61] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
|
34
|
Li JQ, Cao Y, Sun LT, Zhang XZ, Guo JW, Fang X, Wang H, Zhao HW. Intense carbon beams production with an all permanent magnet electron cyclotron resonance ion source for heavy ion medical machine. Rev Sci Instrum 2020; 91:013307. [PMID: 32012517 DOI: 10.1063/1.5128488] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/19/2019] [Accepted: 12/20/2019] [Indexed: 06/10/2023]
Abstract
LAPECR3 (Lanzhou All Permanent magnet Electron cyclotron Resonance ion source No. 3) had been developed as an ion injector of Heavy Ion Medical Machine (HIMM) accelerator facility since 2009. The first HIMM accelerator facility was built in Wuwei city in 2015, and the LAPCER3 ion source has delivered C5+ ion beam to HIMM for more than 1000 days in the past four years. In order to improve the performance of the LAPECR3 ion source for intense carbon beams production, continuous research and development work has been made. The recently developed LAPECR3 ion source together with the new low-energy beam transportation can provide better performance in terms of both beam intensity and quality. This paper will generally review the LAPECR3 ion source operation status for HIMM, and the recent improvement will be presented, especially the stable beams production of C4+ and C5+.
Collapse
Affiliation(s)
- J Q Li
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - Y Cao
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - L T Sun
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - X Z Zhang
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - J W Guo
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - X Fang
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - H Wang
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - H W Zhao
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| |
Collapse
|
35
|
Endo M. [Construction of Heavy Ion Accelerator in Chiba (HIMAC) and Its Consequences-From Medical Physics Viewpoint: Part 3. Development of Scanning Irradiation and Construction of New Facility (2006-)]. Igaku Butsuri 2020; 40:126-138. [PMID: 33390378 DOI: 10.11323/jjmp.40.4_126] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
|
36
|
Brabcová KP, Jamborová Z, Michaelidesová A, Davídková M, Kodaira S, Šefl M, Štěpán V. RADIATION-INDUCED PLASMID DNA DAMAGE: EFFECT OF CONCENTRATION AND LENGTH. Radiat Prot Dosimetry 2019; 186:168-171. [PMID: 31803909 DOI: 10.1093/rpd/ncz196] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 08/14/2019] [Indexed: 06/10/2023]
Abstract
Plasmid DNA is commonly used as a simpler substitute for a cell in studies of early effects of ionizing radiation because it allows to determine yields of primary DNA lesions. Experimental studies often employ plasmids of different lengths, in different concentrations in the aqueous solution. Influence of these parameters on the heavy-ion induced yields of primary DNA damage has been studied, using plasmids pUC19 (2686 bp), pBR322 (4361 bp) and pKLAC2 (9107 bp) in 10 and 50 ng/μl concentration. Results demonstrate the impact of plasmid length, while no significant difference was observed between the two concentrations. The uncertainty of the results is discussed.
Collapse
Affiliation(s)
- Kateřina Pachnerová Brabcová
- Department of Radiation Dosimetry, Nuclear Physics Institute of the CAS, Na Truhlářce 39/64, 180 00 Praha, Czech Republic
| | - Zuzana Jamborová
- Faculty of Nuclear Sciences and Physical Engineering, Czech Technical University in Prague, Břehová 78/7, 110 00 Praha, Czech Republic
| | - Anna Michaelidesová
- Department of Radiation Dosimetry, Nuclear Physics Institute of the CAS, Na Truhlářce 39/64, 180 00 Praha, Czech Republic
- Faculty of Nuclear Sciences and Physical Engineering, Czech Technical University in Prague, Břehová 78/7, 110 00 Praha, Czech Republic
| | - Marie Davídková
- Department of Radiation Dosimetry, Nuclear Physics Institute of the CAS, Na Truhlářce 39/64, 180 00 Praha, Czech Republic
| | - Satoshi Kodaira
- National Institute of Radiological Sciences, 4-9-1 Anagawa, Inage, 263-8555 Chiba, Japan
| | - Martin Šefl
- Department of Radiation Dosimetry, Nuclear Physics Institute of the CAS, Na Truhlářce 39/64, 180 00 Praha, Czech Republic
- Faculty of Nuclear Sciences and Physical Engineering, Czech Technical University in Prague, Břehová 78/7, 110 00 Praha, Czech Republic
| | - Václav Štěpán
- Department of Radiation Dosimetry, Nuclear Physics Institute of the CAS, Na Truhlářce 39/64, 180 00 Praha, Czech Republic
| |
Collapse
|
37
|
Ambrožová I, Pachnerová Brabcová K, Shurshakov VA, Tolochek RV, Kodaira S. ANGULAR DEPENDENCE OF TRACK-ETCH DETECTOR HARZLAS TD-1. Radiat Prot Dosimetry 2019; 186:219-223. [PMID: 31702766 DOI: 10.1093/rpd/ncz206] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Track-etched detectors are commonly used also for radiation monitoring onboard International Space Station. To be registered in track-etched detectors, the particle needs to meet several criteria-it must have linear energy transfer above the detection threshold and strike the detector's surface under an angle higher than the so-called critical angle. Linear energy transfer is then estimated from calibration curve from the etch rate ratio V that is calculated from parameters of individual tracks appearing on the detector's surface after chemical etching. It has been observed that V can depend on the incident angle and this dependence can vary for different detector materials, etching and evaluating conditions. To investigate angular dependence, detectors (Harzlas TD-1) were irradiated at HIMAC by several ions under angles from 0° to 90°. The correction accounting not only for critical angle but also for dependence of V on the incident angle is introduced and applied to spectra measured onboard International Space Station.
Collapse
Affiliation(s)
- Iva Ambrožová
- Department of Radiation Dosimetry, Nuclear Physics Institute of the Czech Academy of Sciences, Na Truhlářce 39/64, 18000 Prague, Czech Republic
| | - Kateřina Pachnerová Brabcová
- Department of Radiation Dosimetry, Nuclear Physics Institute of the Czech Academy of Sciences, Na Truhlářce 39/64, 18000 Prague, Czech Republic
| | - Vyacheslav A Shurshakov
- Institute for Biomedical Problems of the Russian Academy of Sciences, Khoroshevskoye Shosse 76A, Moscow 123007, Russian Federation
| | - Raisa V Tolochek
- Institute for Biomedical Problems of the Russian Academy of Sciences, Khoroshevskoye Shosse 76A, Moscow 123007, Russian Federation
| | - Satoshi Kodaira
- National Institute of Radiological Sciences, National Institutes for Quantum and Radiological Science and Technology, 4-9-1, Anagawa, Inage, Chiba 263-8555, Japan
| |
Collapse
|
38
|
Katengeza EW, Ozaki S, Kato T, Kakefu T, Iimoto T. PRELIMINARY EVALUATION OF A HAND-MADE RADIATION MONITOR'S POTENTIAL FOR PROVIDING ENERGY INFORMATION AS AN ADDITIONAL FEATURE FOR SECONDARY LEVEL RADIATION EDUCATION. Radiat Prot Dosimetry 2019; 184:535-538. [PMID: 31330006 DOI: 10.1093/rpd/ncz076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/02/2019] [Accepted: 04/03/2019] [Indexed: 06/10/2023]
Abstract
A hand-made air GM counter was developed using simple, low-cost and easily available materials. The detector was successful in demonstrating the inverse square law, shielding effect, and determining the half-life of thoron gas. The possibility of using the tube design as a simple proportional counter to provide energy information has been explored and preliminary experiment and simulation results appear to agree at low energy. The energy deposition characteristics for an internally placed alpha-emitting Rn-220 were simulated using Particle and Heavy Ion Transport code System (PHITS).
Collapse
Affiliation(s)
- E W Katengeza
- Department of Environment Systems, Graduate School of Frontier Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, Japan
| | - S Ozaki
- Japan Science Foundation/Science Museum, Kitanomaru-kouen, 2-1 Chiyoda-ku, Tokyo, Japan
| | - T Kato
- Japan Science Foundation/Science Museum, Kitanomaru-kouen, 2-1 Chiyoda-ku, Tokyo, Japan
| | - T Kakefu
- Japan Science Foundation/Science Museum, Kitanomaru-kouen, 2-1 Chiyoda-ku, Tokyo, Japan
| | - T Iimoto
- Department of Environment Systems, Graduate School of Frontier Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, Japan
| |
Collapse
|
39
|
Hada M, Saganti PB, Cucinotta FA. Nitric Oxide Is Involved in Heavy Ion-Induced Non-Targeted Effects in Human Fibroblasts. Int J Mol Sci 2019; 20:ijms20184327. [PMID: 31487843 PMCID: PMC6769611 DOI: 10.3390/ijms20184327] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [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] [Received: 05/28/2019] [Revised: 08/19/2019] [Accepted: 08/30/2019] [Indexed: 11/16/2022] Open
Abstract
Previously, we investigated the dose response for chromosomal aberration (CA) for exposures corresponding to less than one particle traversal per cell nucleus by high energy and charge (HZE) particles, and showed that the dose responses for simple exchanges for human fibroblast irradiated under confluent culture conditions were best fit by non-linear models motivated by a non-targeted effect (NTE). Our results suggested that the simple exchanges in normal human fibroblasts have an important NTE contribution at low particle fluence. Nitric oxide (NO) has been reported as a candidate for intercellular signaling for NTE in many studies. In order to estimate the contribution of NTE components in induced CA, we measured CA with and without an NO scavenger in normal skin fibroblasts cells after exposure to 600 MeV/u and 1 GeV/u 56Fe ions, less than one direct particle traversal per cell nucleus. Yields of CA were significantly lower in fibroblasts exposed to the NO scavenger compared to controls, suggesting involvement of NO in cell signaling for induction of CA. Media transferred from irradiated cells induced CA in non-irradiated cells, and this effect was abrogated with NO scavengers. Our results strongly support the importance of NTE contributions in the formation of CA at low-particle fluence in fibroblasts.
Collapse
Affiliation(s)
- Megumi Hada
- Chancellor's Research Initiative, Radiation Institute for Science & Engineering, Prairie View A&M University, Prairie View, TX 77446, USA.
| | - Premkumar B Saganti
- Chancellor's Research Initiative, Radiation Institute for Science & Engineering, Prairie View A&M University, Prairie View, TX 77446, USA
| | - Francis A Cucinotta
- Department of Health Physics and Diagnostic Sciences, University of Nevada Las Vegas, Las Vegas, NV 89154, USA
| |
Collapse
|
40
|
Hazarika PP, Torikai K, Noguchi R, Saito Y. Analysis of the Stay Time of Patients in Gunma University Heavy Ion Medical Center (GHMC) Using RFID Technology. Stud Health Technol Inform 2019; 264:1767-1768. [PMID: 31438334 DOI: 10.3233/shti190638] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
We observed the stay time of patients and staff in Gunma University Heavy Ion Medical Center. The stay time of patients with the prostatic cancer and the facing time with radiotherapy technicians in treatment rooms were significantly reduced as times goes by. This decreasing in time has an implication in scheduling algorithm development: for patients. RFID technology can be a potential method to track both staff and patients and thereby to assess the resource utilization efficiency.
Collapse
Affiliation(s)
- Partha Protim Hazarika
- Department of Medical Informatics, Gunma University Graduate School of Medicine, Maebashi City, Gunma, 371-8511 Japan
| | - Kota Torikai
- Department of Medical Informatics, Gunma University Graduate School of Medicine, Maebashi City, Gunma, 371-8511 Japan
| | - Rei Noguchi
- Department of Medical Informatics, Gunma University Graduate School of Medicine, Maebashi City, Gunma, 371-8511 Japan
| | - Yuichiro Saito
- Department of Medical Informatics, Gunma University Graduate School of Medicine, Maebashi City, Gunma, 371-8511 Japan
| |
Collapse
|
41
|
Arena C, Vitale E, Hay Mele B, Cataletto PR, Turano M, Simoniello P, De Micco V. Suitability of Solanum lycopersicum L. 'Microtom' for growth in Bioregenerative Life Support Systems: exploring the effect of high-LET ionising radiation on photosynthesis, leaf structure and fruit traits. Plant Biol (Stuttg) 2019; 21:615-626. [PMID: 30585676 DOI: 10.1111/plb.12952] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [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: 10/10/2018] [Accepted: 12/20/2018] [Indexed: 05/09/2023]
Abstract
The realisation of manned space exploration requires the development of Bioregenerative Life Support Systems (BLSS). In such self-sufficient closed habitats, higher plants have a fundamental role in air regeneration, water recovery, food production and waste recycling. In the space environment, ionising radiation represents one of the main constraints to plant growth. In this study, we explore whether low doses of heavy ions, namely Ca 25 Gy, delivered at the seed stage, may induce positive outcomes on growth and functional traits in plants of Solanum lycopersicum L. 'Microtom'. After irradiation of seed, plant growth was monitored during the whole plant life cycle, from germination to fruit ripening. Morphological parameters, photosynthetic efficiency, leaf anatomical functional traits and antioxidant production in leaves and fruits were analysed. Our data demonstrate that irradiation of seeds with 25 Gy Ca ions does not prevent achievement of the seed-to-seed cycle in 'Microtom', and induces a more compact plant size compared to the control. Plants germinated from irradiated seeds show better photochemical efficiency than controls, likely due to the higher amount of D1 protein and photosynthetic pigment content. Leaves of these plants also had smaller cells with a lower number of chloroplasts. The dose of 25 Gy Ca ions is also responsible for positive outcomes in fruits: although developing a lower number of berries, plants germinated from irradiated seeds produce larger berries, richer in carotenoids, ascorbic acid and anthocyanins than controls. These specific traits may be useful for 'Microtom' cultivation in BLSS in space, in so far as the crew members could benefit from fresh food richer in functional compounds that can be directly produced on board.
Collapse
Affiliation(s)
- C Arena
- Department of Biology, University of Naples Federico II, Naples, Italy
| | - E Vitale
- Department of Biology, University of Naples Federico II, Naples, Italy
| | - B Hay Mele
- Department of Agricultural Sciences, University of Naples Federico II, Portici (Naples), Italy
| | - P R Cataletto
- Department of Biology, University of Naples Federico II, Naples, Italy
| | - M Turano
- Department of Biology, University of Naples Federico II, Naples, Italy
| | - P Simoniello
- Department of Science and Technology, University of Naples Pathenope, Centro Direzionale Isola C4, Naples, Italy
| | - V De Micco
- Department of Agricultural Sciences, University of Naples Federico II, Portici (Naples), Italy
| |
Collapse
|
42
|
Yang Y, Pang C, Li W, Xu J, Su Y. STUDY OF NEUTRON RADIATION FIELD AT THE FIRST RADIOACTIVE ION BEAM LINE IN LANZHOU. Radiat Prot Dosimetry 2019; 183:312-318. [PMID: 30053202 DOI: 10.1093/rpd/ncy117] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/29/2018] [Revised: 06/04/2018] [Accepted: 07/02/2018] [Indexed: 06/08/2023]
Abstract
The first Radioactive Ion Beam Line in Lanzhou was a projectile fragment separator located in the HIRFL. The process of production and separation of radioactive ion beams can induce a strong and complex radiation field. The neutron dose equivalent rates were measured in four positions with a 70 MeV/u 40Ar18+ beam. The results were compared with that simulated by the FLUKA code. New shielding walls were installed to reduce the neutron background for spectroscopy measurement in the experimental terminal. In addition, the induced radioactivity of accelerator components and corresponding residual dose rates were analyzed for the radiation safety of accelerator workers. The airborne radioactivity as well as occupational exposure due to immersion in and inhalation of activated air were also estimated. This work aims to provide a valuable experience for the radiation study in the future fragment separator HFRS at HIAF.
Collapse
Affiliation(s)
- Yao Yang
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Chengguo Pang
- Laboratoire de l'Accélérateur Linéaire, Paris-Sud University, CNRS/IN2P3, Orsay, France
| | - Wuyuan Li
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, China
| | - Junkui Xu
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, China
| | - Youwu Su
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, China
| |
Collapse
|
43
|
Matsumoto Y, Furusawa Y, Aoki-Nakano M, Matsufuji N, Hirayama R, Kanai T, Ando K, Sakurai H. ESTIMATION OF RBE VALUES FOR CARBON-ION BEAMS IN THE WIDE DOSE RANGE USING MULTICELLULAR SPHEROIDS. Radiat Prot Dosimetry 2019; 183:45-49. [PMID: 30624731 DOI: 10.1093/rpd/ncy269] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/22/2018] [Indexed: 06/09/2023]
Abstract
Hypofractionated carbon-ion therapy has been applied to treatment of several tumours. In this case, relative biological effectiveness (RBE) at high dose region must be considered, however, the RBE calculated physically has been not verified biologically. In this study, spheroid technique was adopted to estimate RBE in wide dose range. Cells were irradiated with X-rays and heavy-ions with LET of 13, 35, 100 and 300 keV/μm with monolayer and spheroid condition. Surviving fractions in wide dose range (0-15 Gy) were obtained to combined monolayer with spheroid survival data. The linear-quadratic and multi-target single-hit equation fitted well in survival data at low dose, and high dose region, respectively. A multi-process equation showed best fitting for survival data in wide dose range. RBE values of heavy-ions could be estimated by combination of monolayer and spheroid data. The values converged at 1.1-1.4 and varied by LET values at high and low dose region, respectively.
Collapse
Affiliation(s)
- Yoshitaka Matsumoto
- Faculty of Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, Japan
- Proton Medical Research Center, University of Tsukuba Hospital, 2-1-1 Amakubo, Tsukuba, Ibaraki, Japan
| | - Yoshiya Furusawa
- National Institute of Radiological Sciences (NIRS), National Institutes for Quantum and Radiological Science and Technology (QST), 4-9-1 Anagawa, Inage, Chiba, Japan
| | - Mizuho Aoki-Nakano
- National Institute of Radiological Sciences (NIRS), National Institutes for Quantum and Radiological Science and Technology (QST), 4-9-1 Anagawa, Inage, Chiba, Japan
| | - Naruhiro Matsufuji
- National Institute of Radiological Sciences (NIRS), National Institutes for Quantum and Radiological Science and Technology (QST), 4-9-1 Anagawa, Inage, Chiba, Japan
| | - Ryoichi Hirayama
- National Institute of Radiological Sciences (NIRS), National Institutes for Quantum and Radiological Science and Technology (QST), 4-9-1 Anagawa, Inage, Chiba, Japan
| | - Tatsuaki Kanai
- Heavy Ion Medical Center, Gunma University, 3-39-22 Showa-machi, Maebashi, Gunma, Japan
| | - Koichi Ando
- Heavy Ion Medical Center, Gunma University, 3-39-22 Showa-machi, Maebashi, Gunma, Japan
| | - Hideyuki Sakurai
- Faculty of Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, Japan
- Proton Medical Research Center, University of Tsukuba Hospital, 2-1-1 Amakubo, Tsukuba, Ibaraki, Japan
| |
Collapse
|
44
|
Grzanka L, Waligórski MPR, Bassler N. THE ROLE OF PARTICLE SPECTRA IN MODELING THE RELATIVE BIOLOGICAL EFFECTIVENESS OF PROTON RADIOTHERAPY BEAMS. Radiat Prot Dosimetry 2019; 183:251-254. [PMID: 30566667 DOI: 10.1093/rpd/ncy268] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/22/2018] [Accepted: 11/22/2018] [Indexed: 06/09/2023]
Abstract
Radiotherapy beams of protons or heavier ions generate secondary particles through nuclear interactions over different patient tissues. The resulting particle spectra depend on the tissue composition and on charge and energy of the primary beam ions. In proton radiotherapy, predictive radiobiological models usually apply dose-averaged linear energy transfer (LET). Microdosimetry-based models for proton or heavier ion primary beams also rely on dose-averaged quantities, the values of which depend on whether the produced secondaries are included or excluded in the calculation. In turn, this will affect the results of calculations of the relative biological effectiveness (RBE) of these beams. In this brief note, we study quantitatively the influence of the secondary radiation spectra on the averaged expectation values of LET and their impact on predictions of RBE. It is noted that for microdosimetry-based quantities and for corresponding LET-based parameters the trends are similar and that fluence-averaged quantities should be studied more closely.
Collapse
Affiliation(s)
- Leszek Grzanka
- Proton Radiotherapy Group, Institute of Nuclear Physics PAN, ul. Radzikowskiego 152, Krakow, Poland
| | - Michael P R Waligórski
- Proton Radiotherapy Group, Institute of Nuclear Physics PAN, ul. Radzikowskiego 152, Krakow, Poland
| | - Niels Bassler
- Medical Radiation Physics, Dept. of Physics, Stockholm University, Stockholm, Sweden
- Department of Oncology and Pathology, Medical Radiation Physics, Karolinska Institutet, Stockholm, Sweden
- Department of Experimental Clinical Oncology, Aarhus University Hospital, Aarhus, Denmark
| |
Collapse
|
45
|
Pachnerová Brabcová K, Sihver L, Ukraintsev E, Štěpán V, Davídková M. HOW DETECTION OF PLASMID DNA FRAGMENTATION AFFECTS RADIATION STRAND BREAK YIELDS. Radiat Prot Dosimetry 2019; 183:89-92. [PMID: 30534982 DOI: 10.1093/rpd/ncy222] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/12/2018] [Accepted: 11/14/2018] [Indexed: 06/09/2023]
Abstract
A compromised detection of radiation-induced plasmid DNA fragments results in underestimation of calculated damage yields. Electrophoretic methods are easy and cheap, but they can only detect a part of the fragments, neglecting the shortest ones. These can be detected with atomic force microscopy, but at the expense of time and price. Both methods were used to investigate their capabilities to detect the DNA fragments induced by high-energetic heavy ions. The results were taken into account in calculations of radiation-induced yields of single and double strand breaks. It was estimated that the double strand break yield is twice as high when the fragments are at least partially detected with the agarose electrophoresis, compared to when they were completely omitted. Further increase by 13% was observed when the measured fragments were corrected for the fraction of the shortest fragments up to 300 base pairs, as detected with the atomic force microscopy. The effect of fragment detection on the single strand break yield was diminished.
Collapse
Affiliation(s)
- Kateřina Pachnerová Brabcová
- Department of Radiation Dosimetry, Nuclear Physics Institute of the Czech Academy of Sciences, Na Truhlářce 39/64, Prague, Czech Republic
| | - Lembit Sihver
- Atominstitut, Technische Universität Wien, Stadionallee 2, Wien, Austria
- MedAustron, Marie-Curie-Straße 5, Wiener Neustadt, Austria
| | - Egor Ukraintsev
- Department of Thin Films and Nanostructures, Institute of Physics of the Czech Academy of Sciences, Cukrovarnická 10/112, Prague, Czech Republic
| | - Václav Štěpán
- Department of Radiation Dosimetry, Nuclear Physics Institute of the Czech Academy of Sciences, Na Truhlářce 39/64, Prague, Czech Republic
| | - Marie Davídková
- Department of Radiation Dosimetry, Nuclear Physics Institute of the Czech Academy of Sciences, Na Truhlářce 39/64, Prague, Czech Republic
| |
Collapse
|
46
|
Shuryak I, Brenner DJ. MECHANISTIC MODELING PREDICTS NO SIGNIFICANT DOSE RATE EFFECT ON HEAVY-ION CARCINOGENESIS AT DOSE RATES RELEVANT FOR SPACE EXPLORATION. Radiat Prot Dosimetry 2019; 183:203-212. [PMID: 30535099 DOI: 10.1093/rpd/ncy223] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Heavy ion-induced carcinogenesis is a challenge for human space exploration, and mechanistically-motivated mathematical models are needed to predict space-relevant low dose-rate risks, which are difficult to measure experimentally, based on data at higher dose rates. We present such a model, which quantifies targeted and non-targeted radiation effects. We fitted it to lung carcinogenesis data in radon-exposed miners and rats, which provide valuable information on carcinogenesis from protracted exposure to densely-ionizing radiation. We generated model-based estimates for the dose-rate-effect, relative to acute exposures, on heavy ion-induced carcinogenesis at doses/dose rates expected during a Mars mission. A small and not statistically-significant dose-rate effect was predicted: 1.00 (95% CI: 0.54, 1.40) for human data and for combined human and rat data 0.93 (0.06, 1.49). Consequently, heavy ion carcinogenesis estimates from moderate/high dose-rate experimental data may be applicable to doses/dose rates relevant for space exploration.
Collapse
Affiliation(s)
- Igor Shuryak
- Center for Radiological Research, Columbia University Medical Center, New York, USA
| | - David J Brenner
- Center for Radiological Research, Columbia University Medical Center, New York, USA
| |
Collapse
|
47
|
Ichida H, Morita R, Shirakawa Y, Hayashi Y, Abe T. Targeted exome sequencing of unselected heavy-ion beam-irradiated populations reveals less-biased mutation characteristics in the rice genome. Plant J 2019; 98:301-314. [PMID: 30584677 PMCID: PMC6850588 DOI: 10.1111/tpj.14213] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/09/2018] [Revised: 11/20/2018] [Accepted: 12/18/2018] [Indexed: 05/19/2023]
Abstract
Heavy-ion beams have been widely utilized as a novel and effective mutagen for mutation breeding in diverse plant species, but the induced mutation spectrum is not fully understood at the genome scale. We describe the development of a multiplexed and cost-efficient whole-exome sequencing procedure in rice, and its application to characterize an unselected population of heavy-ion beam-induced mutations. The bioinformatics pipeline identified single-nucleotide mutations as well as small and large (>63 kb) insertions and deletions, and showed good agreement with the results obtained with conventional polymerase chain reaction (PCR) and sequencing analyses. We applied the procedure to analyze the mutation spectrum induced by heavy-ion beams at the population level. In total, 165 individual M2 lines derived from six irradiation conditions as well as eight pools from non-irradiated 'Nipponbare' controls were sequenced using the newly established target exome sequencing procedure. The characteristics and distribution of carbon-ion beam-induced mutations were analyzed in the absence of bias introduced by visual mutant selections. The average (±SE) number of mutations within the target exon regions was 9.06 ± 0.37 induced by 150 Gy irradiation of dry seeds. The mutation frequency changed in parallel to the irradiation dose when dry seeds were irradiated. The total number of mutations detected by sequencing unselected M2 lines was correlated with the conventional mutation frequency determined by the occurrence of morphological mutants. Therefore, mutation frequency may be a good indicator for sequencing-based determination of the optimal irradiation condition for induction of mutations.
Collapse
Affiliation(s)
- Hiroyuki Ichida
- RIKEN Nishina Center for Accelerator‐Based ScienceWakoSaitama351‐0198Japan
| | - Ryouhei Morita
- RIKEN Nishina Center for Accelerator‐Based ScienceWakoSaitama351‐0198Japan
| | - Yuki Shirakawa
- RIKEN Nishina Center for Accelerator‐Based ScienceWakoSaitama351‐0198Japan
| | - Yoriko Hayashi
- RIKEN Nishina Center for Accelerator‐Based ScienceWakoSaitama351‐0198Japan
| | - Tomoko Abe
- RIKEN Nishina Center for Accelerator‐Based ScienceWakoSaitama351‐0198Japan
| |
Collapse
|
48
|
Chew MT, Bradley DA, Suzuki M, Matsufuji N, Murakami T, Jones B, Nisbet A. The radiobiological effects of He, C and Ne ions as a function of LET on various glioblastoma cell lines. J Radiat Res 2019; 60:178-188. [PMID: 30624699 PMCID: PMC6430257 DOI: 10.1093/jrr/rry099] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [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: 04/17/2018] [Revised: 08/07/2018] [Indexed: 06/09/2023]
Abstract
The effects of the charged ion species 4He, 12C and 20Ne on glioblastoma multiforme (GBM) T98G, U87 and LN18 cell lines were compared with the effects of 200 kVp X-rays (1.7 keV/μm). These cell lines have different genetic profiles. Individual GBM relative biological effectiveness (RBE) was estimated in two ways: the RBE10 at 10% survival fraction and the RBE2Gy after 2 Gy doses. The linear quadratic model radiosensitivity parameters α and β and the α/β ratio of each ion type were determined as a function of LET. Mono-energetic 4He, 12C and 20Ne ions were generated by the Heavy Ion Medical Accelerator at the National Institute of Radiological Sciences in Chiba, Japan. Colony-formation assays were used to evaluate the survival fractions. The LET of the various ions used ranged from 2.3 to 100 keV/μm (covering the depth-dose plateau region to clinically relevant LET at the Bragg peak). For U87 and LN18, the RBE10 increased with LET and peaked at 85 keV/μm, whereas T98G peaked at 100 keV/μm. All three GBM α parameters peaked at 100 keV/μm. There is a statistically significant difference between the three GBM RBE10 values, except at 100 keV/μm (P < 0.01), and a statistically significant difference between the α values of the GBM cell lines, except at 85 and 100 keV/μm. The biological response varied depending on the GBM cell lines and on the ions used.
Collapse
Affiliation(s)
- Ming Tsuey Chew
- Sunway University, School of Healthcare and Health Sciences, Centre for Biomedical Physics, No. 5, Jalan Universiti, Bandar Sunway, Petaling Jaya, Selangor, Malaysia
| | - David A Bradley
- Sunway University, School of Healthcare and Health Sciences, Centre for Biomedical Physics, No. 5, Jalan Universiti, Bandar Sunway, Petaling Jaya, Selangor, Malaysia
- Department of Physics, Faculty of Engineering and Physical Sciences, University of Surrey, Guildford, UK
| | - Masao Suzuki
- Department of Basic Medical Sciences for Radiation Damages; National Institute of Radiological Sciences (NIRS), National Institutes for Quantum and Radiological Science and Technology, 4-9-1 Anagawa, Inage-ku, Chiba-shi, Chiba, Japan
| | - Naruhiro Matsufuji
- Radiation Effect Research Team, Department of Accelerator and Medical Physics, NIRS, National Institutes for Quantum and Radiological Science and Technology, 4-9-1 Anagawa, Inage-ku, Chiba-shi, Chiba, Japan
| | - Takeshi Murakami
- Heavy-Ion Radiotherapy Promotion Unit & Department of Accelerator and Medical Physics, NIRS, National Institutes for Quantum and Radiological Science and Technology, 4-9-1 Anagawa, Inage-ku, Chiba-shi, Chiba, Japan
| | - Bleddyn Jones
- Gray Laboratory, CRUK/MRC Oxford, Oncology Institute, University of Oxford, ORCRB-Roosevelt Drive, Oxford, UK
| | - Andrew Nisbet
- Department of Physics, Faculty of Engineering and Physical Sciences, University of Surrey, Guildford, UK
- The Department of Medical Physics, Royal Surrey County Hospital, Egerton Road, Guildford, UK
| |
Collapse
|
49
|
Yang X, Chen H, Chen J, Qiao Y, Ma L. [Application Status and Development Trends of Medical Proton and Heavy Ion Accelerators]. Zhongguo Yi Liao Qi Xie Za Zhi 2019; 43:37-42. [PMID: 30770689 DOI: 10.3969/j.issn.1671-7104.2019.01.010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Cancer therapy with accelerated proton or heavy ion beam is the most advanced radiotherapy technology, which is recognized by the international community at present. It is of great practical significance to study the medical proton and heavy ion accelerators and the radiotherapy technology, in order to promote the development of the advanced medical radiotherapy equipments and improve the quality of life of cancer patients in China. After a brief overview of cancer therapy with proton and heavy ion beam, this paper summarized and analyzed the application status of medical proton accelerators and medical heavy ion accelerators at home and abroad, and finally put forward the future development trends of medical proton and heavy ion accelerators and the radiotherapy technology, it can provide a reference for the progress and development strategies of the advanced radiotherapy equipments in China.
Collapse
Affiliation(s)
- Xiaolong Yang
- School of Mechanical and Electronical Engineering, Lanzhou University of Technology, Lanzhou, 730050
| | - Huixian Chen
- School of Mechanical and Electronical Engineering, Lanzhou University of Technology, Lanzhou, 730050
| | - Jipeng Chen
- School of Mechanical and Electronical Engineering, Lanzhou University of Technology, Lanzhou, 730050
| | - Yu Qiao
- School of Mechanical and Electronical Engineering, Lanzhou University of Technology, Lanzhou, 730050
| | - Liqiang Ma
- School of Mechanical and Electronical Engineering, Lanzhou University of Technology, Lanzhou, 730050
| |
Collapse
|
50
|
Moon JY, Belloeil C, Ianna ML, Shin R. Arabidopsis CNGC Family Members Contribute to Heavy Metal Ion Uptake in Plants. Int J Mol Sci 2019; 20:E413. [PMID: 30669376 PMCID: PMC6358908 DOI: 10.3390/ijms20020413] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2018] [Revised: 01/10/2019] [Accepted: 01/16/2019] [Indexed: 12/31/2022] Open
Abstract
Heavy metal ions, including toxic concentrations of essential ions, negatively affect diverse metabolic and cellular processes. Heavy metal ions are known to enter cells in a non-selective manner; however, few studies have examined the regulation of heavy metal ion transport. Plant cyclic nucleotide-gated channels (CNGCs), a type of Ca2+-permeable-channel, have been suggested to be involved in the uptake of both essential and toxic cations. To determine the candidates responsible for heavy metal ion transport, a series of Arabidopsis CNGC mutants were examined for their response to Pb2+ and Cd2+ ions. The primary focus was on root growth and the analysis of the concentration of heavy metals in plants. Results, based on the analysis of primary root length, indicated that AtCNGC1, AtCNGC10, AtCNGC13 and AtCNGC19 play roles in Pb2+ toxicity, while AtCNGC11, AtCNGC13, AtCNGC16 and AtCNGC20 function in Cd2+ toxicity in Arabidopsis. Ion content analysis verified that the mutations of AtCNGC1 and AtCNGC13 resulted in reduced Pb2+ accumulation, while the mutations of AtCNGC11, AtCNGC15 and AtCNGC19 resulted in less Pb2+ and Cd2+ accumulation in plants. These findings provide functional evidence which support the roles of these AtCNGCs in the uptake and transport of Pb2+ or Cd2+ ion in plants.
Collapse
Affiliation(s)
- Ju Yeon Moon
- RIKEN Center for Sustainable Resource Science, 1-7-22 Suehirocho, Tsurumi-ku, Yokohama, Kanagawa 230-0045, Japan.
| | - Célestine Belloeil
- RIKEN Center for Sustainable Resource Science, 1-7-22 Suehirocho, Tsurumi-ku, Yokohama, Kanagawa 230-0045, Japan.
- Université Paris Diderot, 5 rue Thomas Mann, 75013 Paris, France.
| | - Madeline Louise Ianna
- RIKEN Center for Sustainable Resource Science, 1-7-22 Suehirocho, Tsurumi-ku, Yokohama, Kanagawa 230-0045, Japan.
- School of Science and Technology, UNE, Armidale, New South Wales 2351, Australia.
| | - Ryoung Shin
- RIKEN Center for Sustainable Resource Science, 1-7-22 Suehirocho, Tsurumi-ku, Yokohama, Kanagawa 230-0045, Japan.
| |
Collapse
|